tty: move a number of tty drivers from drivers/char/ to drivers/tty/

As planned by Arnd Bergmann, this moves the following drivers from drivers/char/ to drivers/tty/ as that's where they really belong: amiserial nozomi synclink rocket cyclades moxa mxser isicom bfin_jtag_comm Cc: Arnd Bergmann <arnd@arndb.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
author: Greg Kroah-Hartman <gregkh@suse.de> 2011-02-22 16:14:56 -0800
committer: Greg Kroah-Hartman <gregkh@suse.de> 2011-02-22 16:14:56 -0800
commit: a6afd9f3e819de4795fcd356e5bfad446e4323f2 (patch)
tree: 3402b3981867fd4057b4eb33583b6300ae93b9a6 /drivers/char
parent: 44ed76b78e158d852f640d533b7acc08b91f2132 (diff)
17 files changed, 0 insertions, 39363 deletions
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 9b9ab867f50e..1adfac6a7b0b 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -15,36 +15,6 @@ config DEVKMEM
 	  kind of kernel debugging operations.
 	  When in doubt, say "N".
 
-config BFIN_JTAG_COMM
-	tristate "Blackfin JTAG Communication"
-	depends on BLACKFIN
-	help
-	  Add support for emulating a TTY device over the Blackfin JTAG.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called bfin_jtag_comm.
-
-config BFIN_JTAG_COMM_CONSOLE
-	bool "Console on Blackfin JTAG"
-	depends on BFIN_JTAG_COMM=y
-
-config SERIAL_NONSTANDARD
-	bool "Non-standard serial port support"
-	depends on HAS_IOMEM
-	---help---
-	  Say Y here if you have any non-standard serial boards -- boards
-	  which aren't supported using the standard "dumb" serial driver.
-	  This includes intelligent serial boards such as Cyclades,
-	  Digiboards, etc. These are usually used for systems that need many
-	  serial ports because they serve many terminals or dial-in
-	  connections.
-
-	  Note that the answer to this question won't directly affect the
-	  kernel: saying N will just cause the configurator to skip all
-	  the questions about non-standard serial boards.
-
-	  Most people can say N here.
-
 config COMPUTONE
 	tristate "Computone IntelliPort Plus serial support"
 	depends on SERIAL_NONSTANDARD && (ISA || EISA || PCI)
@@ -60,50 +30,6 @@ config COMPUTONE
 	  To compile this driver as module, choose M here: the
 	  module will be called ip2.
 
-config ROCKETPORT
-	tristate "Comtrol RocketPort support"
-	depends on SERIAL_NONSTANDARD && (ISA || EISA || PCI)
-	help
-	  This driver supports Comtrol RocketPort and RocketModem PCI boards.   
-          These boards provide 2, 4, 8, 16, or 32 high-speed serial ports or
-          modems.  For information about the RocketPort/RocketModem  boards
-          and this driver read <file:Documentation/serial/rocket.txt>.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called rocket.
-
-	  If you want to compile this driver into the kernel, say Y here.  If
-          you don't have a Comtrol RocketPort/RocketModem card installed, say N.
-
-config CYCLADES
-	tristate "Cyclades async mux support"
-	depends on SERIAL_NONSTANDARD && (PCI || ISA)
-	select FW_LOADER
-	---help---
-	  This driver supports Cyclades Z and Y multiserial boards.
-	  You would need something like this to connect more than two modems to
-	  your Linux box, for instance in order to become a dial-in server.
-
-	  For information about the Cyclades-Z card, read
-	  <file:Documentation/serial/README.cycladesZ>.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called cyclades.
-
-	  If you haven't heard about it, it's safe to say N.
-
-config CYZ_INTR
-	bool "Cyclades-Z interrupt mode operation (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && CYCLADES
-	help
-	  The Cyclades-Z family of multiport cards allows 2 (two) driver op
-	  modes: polling and interrupt. In polling mode, the driver will check
-	  the status of the Cyclades-Z ports every certain amount of time
-	  (which is called polling cycle and is configurable). In interrupt
-	  mode, it will use an interrupt line (IRQ) in order to check the
-	  status of the Cyclades-Z ports. The default op mode is polling. If
-	  unsure, say N.
-
 config DIGIEPCA
 	tristate "Digiboard Intelligent Async Support"
 	depends on SERIAL_NONSTANDARD && (ISA || EISA || PCI)
@@ -119,94 +45,6 @@ config DIGIEPCA
 	  To compile this driver as a module, choose M here: the
 	  module will be called epca.
 
-config MOXA_INTELLIO
-	tristate "Moxa Intellio support"
-	depends on SERIAL_NONSTANDARD && (ISA || EISA || PCI)
-	select FW_LOADER
-	help
-	  Say Y here if you have a Moxa Intellio multiport serial card.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called moxa.
-
-config MOXA_SMARTIO
-	tristate "Moxa SmartIO support v. 2.0"
-	depends on SERIAL_NONSTANDARD && (PCI || EISA || ISA)
-	help
-	  Say Y here if you have a Moxa SmartIO multiport serial card and/or
-	  want to help develop a new version of this driver.
-
-	  This is upgraded (1.9.1) driver from original Moxa drivers with
-	  changes finally resulting in PCI probing.
-
-	  This driver can also be built as a module. The module will be called
-	  mxser. If you want to do that, say M here.
-
-config ISI
-	tristate "Multi-Tech multiport card support (EXPERIMENTAL)"
-	depends on SERIAL_NONSTANDARD && PCI
-	select FW_LOADER
-	help
-	  This is a driver for the Multi-Tech cards which provide several
-	  serial ports.  The driver is experimental and can currently only be
-	  built as a module. The module will be called isicom.
-	  If you want to do that, choose M here.
-
-config SYNCLINK
-	tristate "Microgate SyncLink card support"
-	depends on SERIAL_NONSTANDARD && PCI && ISA_DMA_API
-	help
-	  Provides support for the SyncLink ISA and PCI multiprotocol serial
-	  adapters. These adapters support asynchronous and HDLC bit
-	  synchronous communication up to 10Mbps (PCI adapter).
-
-	  This driver can only be built as a module ( = code which can be
-	  inserted in and removed from the running kernel whenever you want).
-	  The module will be called synclink.  If you want to do that, say M
-	  here.
-
-config SYNCLINKMP
-	tristate "SyncLink Multiport support"
-	depends on SERIAL_NONSTANDARD && PCI
-	help
-	  Enable support for the SyncLink Multiport (2 or 4 ports)
-	  serial adapter, running asynchronous and HDLC communications up
-	  to 2.048Mbps. Each ports is independently selectable for
-	  RS-232, V.35, RS-449, RS-530, and X.21
-
-	  This driver may be built as a module ( = code which can be
-	  inserted in and removed from the running kernel whenever you want).
-	  The module will be called synclinkmp.  If you want to do that, say M
-	  here.
-
-config SYNCLINK_GT
-	tristate "SyncLink GT/AC support"
-	depends on SERIAL_NONSTANDARD && PCI
-	help
-	  Support for SyncLink GT and SyncLink AC families of
-	  synchronous and asynchronous serial adapters
-	  manufactured by Microgate Systems, Ltd. (www.microgate.com)
-
-config N_HDLC
-	tristate "HDLC line discipline support"
-	depends on SERIAL_NONSTANDARD
-	help
-	  Allows synchronous HDLC communications with tty device drivers that
-	  support synchronous HDLC such as the Microgate SyncLink adapter.
-
-	  This driver can be built as a module ( = code which can be
-	  inserted in and removed from the running kernel whenever you want).
-	  The module will be called n_hdlc. If you want to do that, say M
-	  here.
-
-config N_GSM
-	tristate "GSM MUX line discipline support (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
-	depends on NET
-	help
-	  This line discipline provides support for the GSM MUX protocol and
-	  presents the mux as a set of 61 individual tty devices.
-
 config RISCOM8
 	tristate "SDL RISCom/8 card support"
 	depends on SERIAL_NONSTANDARD
@@ -296,16 +134,6 @@ config ISTALLION
 	  To compile this driver as a module, choose M here: the
 	  module will be called istallion.
 
-config NOZOMI
-	tristate "HSDPA Broadband Wireless Data Card - Globe Trotter"
-	depends on PCI && EXPERIMENTAL
-	help
-	  If you have a HSDPA driver Broadband Wireless Data Card -
-	  Globe Trotter PCMCIA card, say Y here.
-
-	  To compile this driver as a module, choose M here, the module
-	  will be called nozomi.
-
 config A2232
 	tristate "Commodore A2232 serial support (EXPERIMENTAL)"
 	depends on EXPERIMENTAL && ZORRO && BROKEN
diff --git a/drivers/char/Makefile b/drivers/char/Makefile
index 5bc765d4c3ca..f5dc7c9bce6b 100644
--- a/drivers/char/Makefile
+++ b/drivers/char/Makefile
@@ -5,29 +5,18 @@
 obj-y				+= mem.o random.o
 obj-$(CONFIG_TTY_PRINTK)	+= ttyprintk.o
 obj-y				+= misc.o
-obj-$(CONFIG_BFIN_JTAG_COMM)	+= bfin_jtag_comm.o
 obj-$(CONFIG_MVME147_SCC)	+= generic_serial.o vme_scc.o
 obj-$(CONFIG_MVME162_SCC)	+= generic_serial.o vme_scc.o
 obj-$(CONFIG_BVME6000_SCC)	+= generic_serial.o vme_scc.o
-obj-$(CONFIG_ROCKETPORT)	+= rocket.o
 obj-$(CONFIG_SERIAL167)		+= serial167.o
-obj-$(CONFIG_CYCLADES)		+= cyclades.o
 obj-$(CONFIG_STALLION)		+= stallion.o
 obj-$(CONFIG_ISTALLION)		+= istallion.o
-obj-$(CONFIG_NOZOMI)		+= nozomi.o
 obj-$(CONFIG_DIGIEPCA)		+= epca.o
 obj-$(CONFIG_SPECIALIX)		+= specialix.o
-obj-$(CONFIG_MOXA_INTELLIO)	+= moxa.o
 obj-$(CONFIG_A2232)		+= ser_a2232.o generic_serial.o
 obj-$(CONFIG_ATARI_DSP56K)	+= dsp56k.o
-obj-$(CONFIG_MOXA_SMARTIO)	+= mxser.o
 obj-$(CONFIG_COMPUTONE)		+= ip2/
 obj-$(CONFIG_RISCOM8)		+= riscom8.o
-obj-$(CONFIG_ISI)		+= isicom.o
-obj-$(CONFIG_SYNCLINK)		+= synclink.o
-obj-$(CONFIG_SYNCLINKMP)	+= synclinkmp.o
-obj-$(CONFIG_SYNCLINK_GT)	+= synclink_gt.o
-obj-$(CONFIG_AMIGA_BUILTIN_SERIAL) += amiserial.o
 obj-$(CONFIG_SX)		+= sx.o generic_serial.o
 obj-$(CONFIG_RIO)		+= rio/ generic_serial.o
 obj-$(CONFIG_RAW_DRIVER)	+= raw.o
diff --git a/drivers/char/amiserial.c b/drivers/char/amiserial.c
deleted file mode 100644
index f214e5022472..000000000000
--- a/drivers/char/amiserial.c
+++ /dev/null
@@ -1,2178 +0,0 @@
-/*
- *  linux/drivers/char/amiserial.c
- *
- * Serial driver for the amiga builtin port.
- *
- * This code was created by taking serial.c version 4.30 from kernel
- * release 2.3.22, replacing all hardware related stuff with the
- * corresponding amiga hardware actions, and removing all irrelevant
- * code. As a consequence, it uses many of the constants and names
- * associated with the registers and bits of 16550 compatible UARTS -
- * but only to keep track of status, etc in the state variables. It
- * was done this was to make it easier to keep the code in line with
- * (non hardware specific) changes to serial.c.
- *
- * The port is registered with the tty driver as minor device 64, and
- * therefore other ports should should only use 65 upwards.
- *
- * Richard Lucock 28/12/99
- *
- *  Copyright (C) 1991, 1992  Linus Torvalds
- *  Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 
- * 		1998, 1999  Theodore Ts'o
- *
- */
-
-/*
- * Serial driver configuration section.  Here are the various options:
- *
- * SERIAL_PARANOIA_CHECK
- * 		Check the magic number for the async_structure where
- * 		ever possible.
- */
-
-#include <linux/delay.h>
-
-#undef SERIAL_PARANOIA_CHECK
-#define SERIAL_DO_RESTART
-
-/* Set of debugging defines */
-
-#undef SERIAL_DEBUG_INTR
-#undef SERIAL_DEBUG_OPEN
-#undef SERIAL_DEBUG_FLOW
-#undef SERIAL_DEBUG_RS_WAIT_UNTIL_SENT
-
-/* Sanity checks */
-
-#if defined(MODULE) && defined(SERIAL_DEBUG_MCOUNT)
-#define DBG_CNT(s) printk("(%s): [%x] refc=%d, serc=%d, ttyc=%d -> %s\n", \
- tty->name, (info->flags), serial_driver->refcount,info->count,tty->count,s)
-#else
-#define DBG_CNT(s)
-#endif
-
-/*
- * End of serial driver configuration section.
- */
-
-#include <linux/module.h>
-
-#include <linux/types.h>
-#include <linux/serial.h>
-#include <linux/serialP.h>
-#include <linux/serial_reg.h>
-static char *serial_version = "4.30";
-
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/console.h>
-#include <linux/major.h>
-#include <linux/string.h>
-#include <linux/fcntl.h>
-#include <linux/ptrace.h>
-#include <linux/ioport.h>
-#include <linux/mm.h>
-#include <linux/seq_file.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/bitops.h>
-#include <linux/platform_device.h>
-
-#include <asm/setup.h>
-
-#include <asm/system.h>
-
-#include <asm/irq.h>
-
-#include <asm/amigahw.h>
-#include <asm/amigaints.h>
-
-#define custom amiga_custom
-static char *serial_name = "Amiga-builtin serial driver";
-
-static struct tty_driver *serial_driver;
-
-/* number of characters left in xmit buffer before we ask for more */
-#define WAKEUP_CHARS 256
-
-static struct async_struct *IRQ_ports;
-
-static unsigned char current_ctl_bits;
-
-static void change_speed(struct async_struct *info, struct ktermios *old);
-static void rs_wait_until_sent(struct tty_struct *tty, int timeout);
-
-
-static struct serial_state rs_table[1];
-
-#define NR_PORTS ARRAY_SIZE(rs_table)
-
-#include <asm/uaccess.h>
-
-#define serial_isroot()	(capable(CAP_SYS_ADMIN))
-
-
-static inline int serial_paranoia_check(struct async_struct *info,
-					char *name, const char *routine)
-{
-#ifdef SERIAL_PARANOIA_CHECK
-	static const char *badmagic =
-		"Warning: bad magic number for serial struct (%s) in %s\n";
-	static const char *badinfo =
-		"Warning: null async_struct for (%s) in %s\n";
-
-	if (!info) {
-		printk(badinfo, name, routine);
-		return 1;
-	}
-	if (info->magic != SERIAL_MAGIC) {
-		printk(badmagic, name, routine);
-		return 1;
-	}
-#endif
-	return 0;
-}
-
-/* some serial hardware definitions */
-#define SDR_OVRUN   (1<<15)
-#define SDR_RBF     (1<<14)
-#define SDR_TBE     (1<<13)
-#define SDR_TSRE    (1<<12)
-
-#define SERPER_PARENB    (1<<15)
-
-#define AC_SETCLR   (1<<15)
-#define AC_UARTBRK  (1<<11)
-
-#define SER_DTR     (1<<7)
-#define SER_RTS     (1<<6)
-#define SER_DCD     (1<<5)
-#define SER_CTS     (1<<4)
-#define SER_DSR     (1<<3)
-
-static __inline__ void rtsdtr_ctrl(int bits)
-{
-    ciab.pra = ((bits & (SER_RTS | SER_DTR)) ^ (SER_RTS | SER_DTR)) | (ciab.pra & ~(SER_RTS | SER_DTR));
-}
-
-/*
- * ------------------------------------------------------------
- * rs_stop() and rs_start()
- *
- * This routines are called before setting or resetting tty->stopped.
- * They enable or disable transmitter interrupts, as necessary.
- * ------------------------------------------------------------
- */
-static void rs_stop(struct tty_struct *tty)
-{
-	struct async_struct *info = tty->driver_data;
-	unsigned long flags;
-
-	if (serial_paranoia_check(info, tty->name, "rs_stop"))
-		return;
-
-	local_irq_save(flags);
-	if (info->IER & UART_IER_THRI) {
-		info->IER &= ~UART_IER_THRI;
-		/* disable Tx interrupt and remove any pending interrupts */
-		custom.intena = IF_TBE;
-		mb();
-		custom.intreq = IF_TBE;
-		mb();
-	}
-	local_irq_restore(flags);
-}
-
-static void rs_start(struct tty_struct *tty)
-{
-	struct async_struct *info = tty->driver_data;
-	unsigned long flags;
-
-	if (serial_paranoia_check(info, tty->name, "rs_start"))
-		return;
-
-	local_irq_save(flags);
-	if (info->xmit.head != info->xmit.tail
-	    && info->xmit.buf
-	    && !(info->IER & UART_IER_THRI)) {
-		info->IER |= UART_IER_THRI;
-		custom.intena = IF_SETCLR | IF_TBE;
-		mb();
-		/* set a pending Tx Interrupt, transmitter should restart now */
-		custom.intreq = IF_SETCLR | IF_TBE;
-		mb();
-	}
-	local_irq_restore(flags);
-}
-
-/*
- * ----------------------------------------------------------------------
- *
- * Here starts the interrupt handling routines.  All of the following
- * subroutines are declared as inline and are folded into
- * rs_interrupt().  They were separated out for readability's sake.
- *
- * Note: rs_interrupt() is a "fast" interrupt, which means that it
- * runs with interrupts turned off.  People who may want to modify
- * rs_interrupt() should try to keep the interrupt handler as fast as
- * possible.  After you are done making modifications, it is not a bad
- * idea to do:
- * 
- * gcc -S -DKERNEL -Wall -Wstrict-prototypes -O6 -fomit-frame-pointer serial.c
- *
- * and look at the resulting assemble code in serial.s.
- *
- * 				- Ted Ts'o (tytso@mit.edu), 7-Mar-93
- * -----------------------------------------------------------------------
- */
-
-/*
- * This routine is used by the interrupt handler to schedule
- * processing in the software interrupt portion of the driver.
- */
-static void rs_sched_event(struct async_struct *info,
-			   int event)
-{
-	info->event |= 1 << event;
-	tasklet_schedule(&info->tlet);
-}
-
-static void receive_chars(struct async_struct *info)
-{
-        int status;
-	int serdatr;
-	struct tty_struct *tty = info->tty;
-	unsigned char ch, flag;
-	struct	async_icount *icount;
-	int oe = 0;
-
-	icount = &info->state->icount;
-
-	status = UART_LSR_DR; /* We obviously have a character! */
-	serdatr = custom.serdatr;
-	mb();
-	custom.intreq = IF_RBF;
-	mb();
-
-	if((serdatr & 0x1ff) == 0)
-	    status |= UART_LSR_BI;
-	if(serdatr & SDR_OVRUN)
-	    status |= UART_LSR_OE;
-
-	ch = serdatr & 0xff;
-	icount->rx++;
-
-#ifdef SERIAL_DEBUG_INTR
-	printk("DR%02x:%02x...", ch, status);
-#endif
-	flag = TTY_NORMAL;
-
-	/*
-	 * We don't handle parity or frame errors - but I have left
-	 * the code in, since I'm not sure that the errors can't be
-	 * detected.
-	 */
-
-	if (status & (UART_LSR_BI | UART_LSR_PE |
-		      UART_LSR_FE | UART_LSR_OE)) {
-	  /*
-	   * For statistics only
-	   */
-	  if (status & UART_LSR_BI) {
-	    status &= ~(UART_LSR_FE | UART_LSR_PE);
-	    icount->brk++;
-	  } else if (status & UART_LSR_PE)
-	    icount->parity++;
-	  else if (status & UART_LSR_FE)
-	    icount->frame++;
-	  if (status & UART_LSR_OE)
-	    icount->overrun++;
-
-	  /*
-	   * Now check to see if character should be
-	   * ignored, and mask off conditions which
-	   * should be ignored.
-	   */
-	  if (status & info->ignore_status_mask)
-	    goto out;
-
-	  status &= info->read_status_mask;
-
-	  if (status & (UART_LSR_BI)) {
-#ifdef SERIAL_DEBUG_INTR
-	    printk("handling break....");
-#endif
-	    flag = TTY_BREAK;
-	    if (info->flags & ASYNC_SAK)
-	      do_SAK(tty);
-	  } else if (status & UART_LSR_PE)
-	    flag = TTY_PARITY;
-	  else if (status & UART_LSR_FE)
-	    flag = TTY_FRAME;
-	  if (status & UART_LSR_OE) {
-	    /*
-	     * Overrun is special, since it's
-	     * reported immediately, and doesn't
-	     * affect the current character
-	     */
-	     oe = 1;
-	  }
-	}
-	tty_insert_flip_char(tty, ch, flag);
-	if (oe == 1)
-		tty_insert_flip_char(tty, 0, TTY_OVERRUN);
-	tty_flip_buffer_push(tty);
-out:
-	return;
-}
-
-static void transmit_chars(struct async_struct *info)
-{
-	custom.intreq = IF_TBE;
-	mb();
-	if (info->x_char) {
-	        custom.serdat = info->x_char | 0x100;
-		mb();
-		info->state->icount.tx++;
-		info->x_char = 0;
-		return;
-	}
-	if (info->xmit.head == info->xmit.tail
-	    || info->tty->stopped
-	    || info->tty->hw_stopped) {
-		info->IER &= ~UART_IER_THRI;
-	        custom.intena = IF_TBE;
-		mb();
-		return;
-	}
-
-	custom.serdat = info->xmit.buf[info->xmit.tail++] | 0x100;
-	mb();
-	info->xmit.tail = info->xmit.tail & (SERIAL_XMIT_SIZE-1);
-	info->state->icount.tx++;
-
-	if (CIRC_CNT(info->xmit.head,
-		     info->xmit.tail,
-		     SERIAL_XMIT_SIZE) < WAKEUP_CHARS)
-		rs_sched_event(info, RS_EVENT_WRITE_WAKEUP);
-
-#ifdef SERIAL_DEBUG_INTR
-	printk("THRE...");
-#endif
-	if (info->xmit.head == info->xmit.tail) {
-	        custom.intena = IF_TBE;
-		mb();
-		info->IER &= ~UART_IER_THRI;
-	}
-}
-
-static void check_modem_status(struct async_struct *info)
-{
-	unsigned char status = ciab.pra & (SER_DCD | SER_CTS | SER_DSR);
-	unsigned char dstatus;
-	struct	async_icount *icount;
-
-	/* Determine bits that have changed */
-	dstatus = status ^ current_ctl_bits;
-	current_ctl_bits = status;
-
-	if (dstatus) {
-		icount = &info->state->icount;
-		/* update input line counters */
-		if (dstatus & SER_DSR)
-			icount->dsr++;
-		if (dstatus & SER_DCD) {
-			icount->dcd++;
-#ifdef CONFIG_HARD_PPS
-			if ((info->flags & ASYNC_HARDPPS_CD) &&
-			    !(status & SER_DCD))
-				hardpps();
-#endif
-		}
-		if (dstatus & SER_CTS)
-			icount->cts++;
-		wake_up_interruptible(&info->delta_msr_wait);
-	}
-
-	if ((info->flags & ASYNC_CHECK_CD) && (dstatus & SER_DCD)) {
-#if (defined(SERIAL_DEBUG_OPEN) || defined(SERIAL_DEBUG_INTR))
-		printk("ttyS%d CD now %s...", info->line,
-		       (!(status & SER_DCD)) ? "on" : "off");
-#endif
-		if (!(status & SER_DCD))
-			wake_up_interruptible(&info->open_wait);
-		else {
-#ifdef SERIAL_DEBUG_OPEN
-			printk("doing serial hangup...");
-#endif
-			if (info->tty)
-				tty_hangup(info->tty);
-		}
-	}
-	if (info->flags & ASYNC_CTS_FLOW) {
-		if (info->tty->hw_stopped) {
-			if (!(status & SER_CTS)) {
-#if (defined(SERIAL_DEBUG_INTR) || defined(SERIAL_DEBUG_FLOW))
-				printk("CTS tx start...");
-#endif
-				info->tty->hw_stopped = 0;
-				info->IER |= UART_IER_THRI;
-				custom.intena = IF_SETCLR | IF_TBE;
-				mb();
-				/* set a pending Tx Interrupt, transmitter should restart now */
-				custom.intreq = IF_SETCLR | IF_TBE;
-				mb();
-				rs_sched_event(info, RS_EVENT_WRITE_WAKEUP);
-				return;
-			}
-		} else {
-			if ((status & SER_CTS)) {
-#if (defined(SERIAL_DEBUG_INTR) || defined(SERIAL_DEBUG_FLOW))
-				printk("CTS tx stop...");
-#endif
-				info->tty->hw_stopped = 1;
-				info->IER &= ~UART_IER_THRI;
-				/* disable Tx interrupt and remove any pending interrupts */
-				custom.intena = IF_TBE;
-				mb();
-				custom.intreq = IF_TBE;
-				mb();
-			}
-		}
-	}
-}
-
-static irqreturn_t ser_vbl_int( int irq, void *data)
-{
-        /* vbl is just a periodic interrupt we tie into to update modem status */
-	struct async_struct * info = IRQ_ports;
-	/*
-	 * TBD - is it better to unregister from this interrupt or to
-	 * ignore it if MSI is clear ?
-	 */
-	if(info->IER & UART_IER_MSI)
-	  check_modem_status(info);
-	return IRQ_HANDLED;
-}
-
-static irqreturn_t ser_rx_int(int irq, void *dev_id)
-{
-	struct async_struct * info;
-
-#ifdef SERIAL_DEBUG_INTR
-	printk("ser_rx_int...");
-#endif
-
-	info = IRQ_ports;
-	if (!info || !info->tty)
-		return IRQ_NONE;
-
-	receive_chars(info);
-	info->last_active = jiffies;
-#ifdef SERIAL_DEBUG_INTR
-	printk("end.\n");
-#endif
-	return IRQ_HANDLED;
-}
-
-static irqreturn_t ser_tx_int(int irq, void *dev_id)
-{
-	struct async_struct * info;
-
-	if (custom.serdatr & SDR_TBE) {
-#ifdef SERIAL_DEBUG_INTR
-	  printk("ser_tx_int...");
-#endif
-
-	  info = IRQ_ports;
-	  if (!info || !info->tty)
-		return IRQ_NONE;
-
-	  transmit_chars(info);
-	  info->last_active = jiffies;
-#ifdef SERIAL_DEBUG_INTR
-	  printk("end.\n");
-#endif
-	}
-	return IRQ_HANDLED;
-}
-
-/*
- * -------------------------------------------------------------------
- * Here ends the serial interrupt routines.
- * -------------------------------------------------------------------
- */
-
-/*
- * This routine is used to handle the "bottom half" processing for the
- * serial driver, known also the "software interrupt" processing.
- * This processing is done at the kernel interrupt level, after the
- * rs_interrupt() has returned, BUT WITH INTERRUPTS TURNED ON.  This
- * is where time-consuming activities which can not be done in the
- * interrupt driver proper are done; the interrupt driver schedules
- * them using rs_sched_event(), and they get done here.
- */
-
-static void do_softint(unsigned long private_)
-{
-	struct async_struct	*info = (struct async_struct *) private_;
-	struct tty_struct	*tty;
-
-	tty = info->tty;
-	if (!tty)
-		return;
-
-	if (test_and_clear_bit(RS_EVENT_WRITE_WAKEUP, &info->event))
-		tty_wakeup(tty);
-}
-
-/*
- * ---------------------------------------------------------------
- * Low level utility subroutines for the serial driver:  routines to
- * figure out the appropriate timeout for an interrupt chain, routines
- * to initialize and startup a serial port, and routines to shutdown a
- * serial port.  Useful stuff like that.
- * ---------------------------------------------------------------
- */
-
-static int startup(struct async_struct * info)
-{
-	unsigned long flags;
-	int	retval=0;
-	unsigned long page;
-
-	page = get_zeroed_page(GFP_KERNEL);
-	if (!page)
-		return -ENOMEM;
-
-	local_irq_save(flags);
-
-	if (info->flags & ASYNC_INITIALIZED) {
-		free_page(page);
-		goto errout;
-	}
-
-	if (info->xmit.buf)
-		free_page(page);
-	else
-		info->xmit.buf = (unsigned char *) page;
-
-#ifdef SERIAL_DEBUG_OPEN
-	printk("starting up ttys%d ...", info->line);
-#endif
-
-	/* Clear anything in the input buffer */
-
-	custom.intreq = IF_RBF;
-	mb();
-
-	retval = request_irq(IRQ_AMIGA_VERTB, ser_vbl_int, 0, "serial status", info);
-	if (retval) {
-	  if (serial_isroot()) {
-	    if (info->tty)
-	      set_bit(TTY_IO_ERROR,
-		      &info->tty->flags);
-	    retval = 0;
-	  }
-	  goto errout;
-	}
-
-	/* enable both Rx and Tx interrupts */
-	custom.intena = IF_SETCLR | IF_RBF | IF_TBE;
-	mb();
-	info->IER = UART_IER_MSI;
-
-	/* remember current state of the DCD and CTS bits */
-	current_ctl_bits = ciab.pra & (SER_DCD | SER_CTS | SER_DSR);
-
-	IRQ_ports = info;
-
-	info->MCR = 0;
-	if (info->tty->termios->c_cflag & CBAUD)
-	  info->MCR = SER_DTR | SER_RTS;
-	rtsdtr_ctrl(info->MCR);
-
-	if (info->tty)
-		clear_bit(TTY_IO_ERROR, &info->tty->flags);
-	info->xmit.head = info->xmit.tail = 0;
-
-	/*
-	 * Set up the tty->alt_speed kludge
-	 */
-	if (info->tty) {
-		if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
-			info->tty->alt_speed = 57600;
-		if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
-			info->tty->alt_speed = 115200;
-		if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
-			info->tty->alt_speed = 230400;
-		if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
-			info->tty->alt_speed = 460800;
-	}
-
-	/*
-	 * and set the speed of the serial port
-	 */
-	change_speed(info, NULL);
-
-	info->flags |= ASYNC_INITIALIZED;
-	local_irq_restore(flags);
-	return 0;
-
-errout:
-	local_irq_restore(flags);
-	return retval;
-}
-
-/*
- * This routine will shutdown a serial port; interrupts are disabled, and
- * DTR is dropped if the hangup on close termio flag is on.
- */
-static void shutdown(struct async_struct * info)
-{
-	unsigned long	flags;
-	struct serial_state *state;
-
-	if (!(info->flags & ASYNC_INITIALIZED))
-		return;
-
-	state = info->state;
-
-#ifdef SERIAL_DEBUG_OPEN
-	printk("Shutting down serial port %d ....\n", info->line);
-#endif
-
-	local_irq_save(flags); /* Disable interrupts */
-
-	/*
-	 * clear delta_msr_wait queue to avoid mem leaks: we may free the irq
-	 * here so the queue might never be waken up
-	 */
-	wake_up_interruptible(&info->delta_msr_wait);
-
-	IRQ_ports = NULL;
-
-	/*
-	 * Free the IRQ, if necessary
-	 */
-	free_irq(IRQ_AMIGA_VERTB, info);
-
-	if (info->xmit.buf) {
-		free_page((unsigned long) info->xmit.buf);
-		info->xmit.buf = NULL;
-	}
-
-	info->IER = 0;
-	custom.intena = IF_RBF | IF_TBE;
-	mb();
-
-	/* disable break condition */
-	custom.adkcon = AC_UARTBRK;
-	mb();
-
-	if (!info->tty || (info->tty->termios->c_cflag & HUPCL))
-		info->MCR &= ~(SER_DTR|SER_RTS);
-	rtsdtr_ctrl(info->MCR);
-
-	if (info->tty)
-		set_bit(TTY_IO_ERROR, &info->tty->flags);
-
-	info->flags &= ~ASYNC_INITIALIZED;
-	local_irq_restore(flags);
-}
-
-
-/*
- * This routine is called to set the UART divisor registers to match
- * the specified baud rate for a serial port.
- */
-static void change_speed(struct async_struct *info,
-			 struct ktermios *old_termios)
-{
-	int	quot = 0, baud_base, baud;
-	unsigned cflag, cval = 0;
-	int	bits;
-	unsigned long	flags;
-
-	if (!info->tty || !info->tty->termios)
-		return;
-	cflag = info->tty->termios->c_cflag;
-
-	/* Byte size is always 8 bits plus parity bit if requested */
-
-	cval = 3; bits = 10;
-	if (cflag & CSTOPB) {
-		cval |= 0x04;
-		bits++;
-	}
-	if (cflag & PARENB) {
-		cval |= UART_LCR_PARITY;
-		bits++;
-	}
-	if (!(cflag & PARODD))
-		cval |= UART_LCR_EPAR;
-#ifdef CMSPAR
-	if (cflag & CMSPAR)
-		cval |= UART_LCR_SPAR;
-#endif
-
-	/* Determine divisor based on baud rate */
-	baud = tty_get_baud_rate(info->tty);
-	if (!baud)
-		baud = 9600;	/* B0 transition handled in rs_set_termios */
-	baud_base = info->state->baud_base;
-	if (baud == 38400 &&
-	    ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST))
-		quot = info->state->custom_divisor;
-	else {
-		if (baud == 134)
-			/* Special case since 134 is really 134.5 */
-			quot = (2*baud_base / 269);
-		else if (baud)
-			quot = baud_base / baud;
-	}
-	/* If the quotient is zero refuse the change */
-	if (!quot && old_termios) {
-		/* FIXME: Will need updating for new tty in the end */
-		info->tty->termios->c_cflag &= ~CBAUD;
-		info->tty->termios->c_cflag |= (old_termios->c_cflag & CBAUD);
-		baud = tty_get_baud_rate(info->tty);
-		if (!baud)
-			baud = 9600;
-		if (baud == 38400 &&
-		    ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST))
-			quot = info->state->custom_divisor;
-		else {
-			if (baud == 134)
-				/* Special case since 134 is really 134.5 */
-				quot = (2*baud_base / 269);
-			else if (baud)
-				quot = baud_base / baud;
-		}
-	}
-	/* As a last resort, if the quotient is zero, default to 9600 bps */
-	if (!quot)
-		quot = baud_base / 9600;
-	info->quot = quot;
-	info->timeout = ((info->xmit_fifo_size*HZ*bits*quot) / baud_base);
-	info->timeout += HZ/50;		/* Add .02 seconds of slop */
-
-	/* CTS flow control flag and modem status interrupts */
-	info->IER &= ~UART_IER_MSI;
-	if (info->flags & ASYNC_HARDPPS_CD)
-		info->IER |= UART_IER_MSI;
-	if (cflag & CRTSCTS) {
-		info->flags |= ASYNC_CTS_FLOW;
-		info->IER |= UART_IER_MSI;
-	} else
-		info->flags &= ~ASYNC_CTS_FLOW;
-	if (cflag & CLOCAL)
-		info->flags &= ~ASYNC_CHECK_CD;
-	else {
-		info->flags |= ASYNC_CHECK_CD;
-		info->IER |= UART_IER_MSI;
-	}
-	/* TBD:
-	 * Does clearing IER_MSI imply that we should disable the VBL interrupt ?
-	 */
-
-	/*
-	 * Set up parity check flag
-	 */
-
-	info->read_status_mask = UART_LSR_OE | UART_LSR_DR;
-	if (I_INPCK(info->tty))
-		info->read_status_mask |= UART_LSR_FE | UART_LSR_PE;
-	if (I_BRKINT(info->tty) || I_PARMRK(info->tty))
-		info->read_status_mask |= UART_LSR_BI;
-
-	/*
-	 * Characters to ignore
-	 */
-	info->ignore_status_mask = 0;
-	if (I_IGNPAR(info->tty))
-		info->ignore_status_mask |= UART_LSR_PE | UART_LSR_FE;
-	if (I_IGNBRK(info->tty)) {
-		info->ignore_status_mask |= UART_LSR_BI;
-		/*
-		 * If we're ignore parity and break indicators, ignore 
-		 * overruns too.  (For real raw support).
-		 */
-		if (I_IGNPAR(info->tty))
-			info->ignore_status_mask |= UART_LSR_OE;
-	}
-	/*
-	 * !!! ignore all characters if CREAD is not set
-	 */
-	if ((cflag & CREAD) == 0)
-		info->ignore_status_mask |= UART_LSR_DR;
-	local_irq_save(flags);
-
-	{
-	  short serper;
-
-	/* Set up the baud rate */
-	  serper = quot - 1;
-
-	/* Enable or disable parity bit */
-
-	if(cval & UART_LCR_PARITY)
-	  serper |= (SERPER_PARENB);
-
-	custom.serper = serper;
-	mb();
-	}
-
-	info->LCR = cval;				/* Save LCR */
-	local_irq_restore(flags);
-}
-
-static int rs_put_char(struct tty_struct *tty, unsigned char ch)
-{
-	struct async_struct *info;
-	unsigned long flags;
-
-	info = tty->driver_data;
-
-	if (serial_paranoia_check(info, tty->name, "rs_put_char"))
-		return 0;
-
-	if (!info->xmit.buf)
-		return 0;
-
-	local_irq_save(flags);
-	if (CIRC_SPACE(info->xmit.head,
-		       info->xmit.tail,
-		       SERIAL_XMIT_SIZE) == 0) {
-		local_irq_restore(flags);
-		return 0;
-	}
-
-	info->xmit.buf[info->xmit.head++] = ch;
-	info->xmit.head &= SERIAL_XMIT_SIZE-1;
-	local_irq_restore(flags);
-	return 1;
-}
-
-static void rs_flush_chars(struct tty_struct *tty)
-{
-	struct async_struct *info = tty->driver_data;
-	unsigned long flags;
-
-	if (serial_paranoia_check(info, tty->name, "rs_flush_chars"))
-		return;
-
-	if (info->xmit.head == info->xmit.tail
-	    || tty->stopped
-	    || tty->hw_stopped
-	    || !info->xmit.buf)
-		return;
-
-	local_irq_save(flags);
-	info->IER |= UART_IER_THRI;
-	custom.intena = IF_SETCLR | IF_TBE;
-	mb();
-	/* set a pending Tx Interrupt, transmitter should restart now */
-	custom.intreq = IF_SETCLR | IF_TBE;
-	mb();
-	local_irq_restore(flags);
-}
-
-static int rs_write(struct tty_struct * tty, const unsigned char *buf, int count)
-{
-	int	c, ret = 0;
-	struct async_struct *info;
-	unsigned long flags;
-
-	info = tty->driver_data;
-
-	if (serial_paranoia_check(info, tty->name, "rs_write"))
-		return 0;
-
-	if (!info->xmit.buf)
-		return 0;
-
-	local_irq_save(flags);
-	while (1) {
-		c = CIRC_SPACE_TO_END(info->xmit.head,
-				      info->xmit.tail,
-				      SERIAL_XMIT_SIZE);
-		if (count < c)
-			c = count;
-		if (c <= 0) {
-			break;
-		}
-		memcpy(info->xmit.buf + info->xmit.head, buf, c);
-		info->xmit.head = ((info->xmit.head + c) &
-				   (SERIAL_XMIT_SIZE-1));
-		buf += c;
-		count -= c;
-		ret += c;
-	}
-	local_irq_restore(flags);
-
-	if (info->xmit.head != info->xmit.tail
-	    && !tty->stopped
-	    && !tty->hw_stopped
-	    && !(info->IER & UART_IER_THRI)) {
-		info->IER |= UART_IER_THRI;
-		local_irq_disable();
-		custom.intena = IF_SETCLR | IF_TBE;
-		mb();
-		/* set a pending Tx Interrupt, transmitter should restart now */
-		custom.intreq = IF_SETCLR | IF_TBE;
-		mb();
-		local_irq_restore(flags);
-	}
-	return ret;
-}
-
-static int rs_write_room(struct tty_struct *tty)
-{
-	struct async_struct *info = tty->driver_data;
-
-	if (serial_paranoia_check(info, tty->name, "rs_write_room"))
-		return 0;
-	return CIRC_SPACE(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE);
-}
-
-static int rs_chars_in_buffer(struct tty_struct *tty)
-{
-	struct async_struct *info = tty->driver_data;
-
-	if (serial_paranoia_check(info, tty->name, "rs_chars_in_buffer"))
-		return 0;
-	return CIRC_CNT(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE);
-}
-
-static void rs_flush_buffer(struct tty_struct *tty)
-{
-	struct async_struct *info = tty->driver_data;
-	unsigned long flags;
-
-	if (serial_paranoia_check(info, tty->name, "rs_flush_buffer"))
-		return;
-	local_irq_save(flags);
-	info->xmit.head = info->xmit.tail = 0;
-	local_irq_restore(flags);
-	tty_wakeup(tty);
-}
-
-/*
- * This function is used to send a high-priority XON/XOFF character to
- * the device
- */
-static void rs_send_xchar(struct tty_struct *tty, char ch)
-{
-	struct async_struct *info = tty->driver_data;
-        unsigned long flags;
-
-	if (serial_paranoia_check(info, tty->name, "rs_send_char"))
-		return;
-
-	info->x_char = ch;
-	if (ch) {
-		/* Make sure transmit interrupts are on */
-
-	        /* Check this ! */
-	        local_irq_save(flags);
-		if(!(custom.intenar & IF_TBE)) {
-		    custom.intena = IF_SETCLR | IF_TBE;
-		    mb();
-		    /* set a pending Tx Interrupt, transmitter should restart now */
-		    custom.intreq = IF_SETCLR | IF_TBE;
-		    mb();
-		}
-		local_irq_restore(flags);
-
-		info->IER |= UART_IER_THRI;
-	}
-}
-
-/*
- * ------------------------------------------------------------
- * rs_throttle()
- * 
- * This routine is called by the upper-layer tty layer to signal that
- * incoming characters should be throttled.
- * ------------------------------------------------------------
- */
-static void rs_throttle(struct tty_struct * tty)
-{
-	struct async_struct *info = tty->driver_data;
-	unsigned long flags;
-#ifdef SERIAL_DEBUG_THROTTLE
-	char	buf[64];
-
-	printk("throttle %s: %d....\n", tty_name(tty, buf),
-	       tty->ldisc.chars_in_buffer(tty));
-#endif
-
-	if (serial_paranoia_check(info, tty->name, "rs_throttle"))
-		return;
-
-	if (I_IXOFF(tty))
-		rs_send_xchar(tty, STOP_CHAR(tty));
-
-	if (tty->termios->c_cflag & CRTSCTS)
-		info->MCR &= ~SER_RTS;
-
-	local_irq_save(flags);
-	rtsdtr_ctrl(info->MCR);
-	local_irq_restore(flags);
-}
-
-static void rs_unthrottle(struct tty_struct * tty)
-{
-	struct async_struct *info = tty->driver_data;
-	unsigned long flags;
-#ifdef SERIAL_DEBUG_THROTTLE
-	char	buf[64];
-
-	printk("unthrottle %s: %d....\n", tty_name(tty, buf),
-	       tty->ldisc.chars_in_buffer(tty));
-#endif
-
-	if (serial_paranoia_check(info, tty->name, "rs_unthrottle"))
-		return;
-
-	if (I_IXOFF(tty)) {
-		if (info->x_char)
-			info->x_char = 0;
-		else
-			rs_send_xchar(tty, START_CHAR(tty));
-	}
-	if (tty->termios->c_cflag & CRTSCTS)
-		info->MCR |= SER_RTS;
-	local_irq_save(flags);
-	rtsdtr_ctrl(info->MCR);
-	local_irq_restore(flags);
-}
-
-/*
- * ------------------------------------------------------------
- * rs_ioctl() and friends
- * ------------------------------------------------------------
- */
-
-static int get_serial_info(struct async_struct * info,
-			   struct serial_struct __user * retinfo)
-{
-	struct serial_struct tmp;
-	struct serial_state *state = info->state;
-   
-	if (!retinfo)
-		return -EFAULT;
-	memset(&tmp, 0, sizeof(tmp));
-	tty_lock();
-	tmp.type = state->type;
-	tmp.line = state->line;
-	tmp.port = state->port;
-	tmp.irq = state->irq;
-	tmp.flags = state->flags;
-	tmp.xmit_fifo_size = state->xmit_fifo_size;
-	tmp.baud_base = state->baud_base;
-	tmp.close_delay = state->close_delay;
-	tmp.closing_wait = state->closing_wait;
-	tmp.custom_divisor = state->custom_divisor;
-	tty_unlock();
-	if (copy_to_user(retinfo,&tmp,sizeof(*retinfo)))
-		return -EFAULT;
-	return 0;
-}
-
-static int set_serial_info(struct async_struct * info,
-			   struct serial_struct __user * new_info)
-{
-	struct serial_struct new_serial;
- 	struct serial_state old_state, *state;
-	unsigned int		change_irq,change_port;
-	int 			retval = 0;
-
-	if (copy_from_user(&new_serial,new_info,sizeof(new_serial)))
-		return -EFAULT;
-
-	tty_lock();
-	state = info->state;
-	old_state = *state;
-  
-	change_irq = new_serial.irq != state->irq;
-	change_port = (new_serial.port != state->port);
-	if(change_irq || change_port || (new_serial.xmit_fifo_size != state->xmit_fifo_size)) {
-	  tty_unlock();
-	  return -EINVAL;
-	}
-  
-	if (!serial_isroot()) {
-		if ((new_serial.baud_base != state->baud_base) ||
-		    (new_serial.close_delay != state->close_delay) ||
-		    (new_serial.xmit_fifo_size != state->xmit_fifo_size) ||
-		    ((new_serial.flags & ~ASYNC_USR_MASK) !=
-		     (state->flags & ~ASYNC_USR_MASK)))
-			return -EPERM;
-		state->flags = ((state->flags & ~ASYNC_USR_MASK) |
-			       (new_serial.flags & ASYNC_USR_MASK));
-		info->flags = ((info->flags & ~ASYNC_USR_MASK) |
-			       (new_serial.flags & ASYNC_USR_MASK));
-		state->custom_divisor = new_serial.custom_divisor;
-		goto check_and_exit;
-	}
-
-	if (new_serial.baud_base < 9600) {
-		tty_unlock();
-		return -EINVAL;
-	}
-
-	/*
-	 * OK, past this point, all the error checking has been done.
-	 * At this point, we start making changes.....
-	 */
-
-	state->baud_base = new_serial.baud_base;
-	state->flags = ((state->flags & ~ASYNC_FLAGS) |
-			(new_serial.flags & ASYNC_FLAGS));
-	info->flags = ((state->flags & ~ASYNC_INTERNAL_FLAGS) |
-		       (info->flags & ASYNC_INTERNAL_FLAGS));
-	state->custom_divisor = new_serial.custom_divisor;
-	state->close_delay = new_serial.close_delay * HZ/100;
-	state->closing_wait = new_serial.closing_wait * HZ/100;
-	info->tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
-
-check_and_exit:
-	if (info->flags & ASYNC_INITIALIZED) {
-		if (((old_state.flags & ASYNC_SPD_MASK) !=
-		     (state->flags & ASYNC_SPD_MASK)) ||
-		    (old_state.custom_divisor != state->custom_divisor)) {
-			if ((state->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
-				info->tty->alt_speed = 57600;
-			if ((state->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
-				info->tty->alt_speed = 115200;
-			if ((state->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
-				info->tty->alt_speed = 230400;
-			if ((state->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
-				info->tty->alt_speed = 460800;
-			change_speed(info, NULL);
-		}
-	} else
-		retval = startup(info);
-	tty_unlock();
-	return retval;
-}
-
-
-/*
- * get_lsr_info - get line status register info
- *
- * Purpose: Let user call ioctl() to get info when the UART physically
- * 	    is emptied.  On bus types like RS485, the transmitter must
- * 	    release the bus after transmitting. This must be done when
- * 	    the transmit shift register is empty, not be done when the
- * 	    transmit holding register is empty.  This functionality
- * 	    allows an RS485 driver to be written in user space. 
- */
-static int get_lsr_info(struct async_struct * info, unsigned int __user *value)
-{
-	unsigned char status;
-	unsigned int result;
-	unsigned long flags;
-
-	local_irq_save(flags);
-	status = custom.serdatr;
-	mb();
-	local_irq_restore(flags);
-	result = ((status & SDR_TSRE) ? TIOCSER_TEMT : 0);
-	if (copy_to_user(value, &result, sizeof(int)))
-		return -EFAULT;
-	return 0;
-}
-
-
-static int rs_tiocmget(struct tty_struct *tty)
-{
-	struct async_struct * info = tty->driver_data;
-	unsigned char control, status;
-	unsigned long flags;
-
-	if (serial_paranoia_check(info, tty->name, "rs_ioctl"))
-		return -ENODEV;
-	if (tty->flags & (1 << TTY_IO_ERROR))
-		return -EIO;
-
-	control = info->MCR;
-	local_irq_save(flags);
-	status = ciab.pra;
-	local_irq_restore(flags);
-	return    ((control & SER_RTS) ? TIOCM_RTS : 0)
-		| ((control & SER_DTR) ? TIOCM_DTR : 0)
-		| (!(status  & SER_DCD) ? TIOCM_CAR : 0)
-		| (!(status  & SER_DSR) ? TIOCM_DSR : 0)
-		| (!(status  & SER_CTS) ? TIOCM_CTS : 0);
-}
-
-static int rs_tiocmset(struct tty_struct *tty, unsigned int set,
-						unsigned int clear)
-{
-	struct async_struct * info = tty->driver_data;
-	unsigned long flags;
-
-	if (serial_paranoia_check(info, tty->name, "rs_ioctl"))
-		return -ENODEV;
-	if (tty->flags & (1 << TTY_IO_ERROR))
-		return -EIO;
-
-	local_irq_save(flags);
-	if (set & TIOCM_RTS)
-		info->MCR |= SER_RTS;
-	if (set & TIOCM_DTR)
-		info->MCR |= SER_DTR;
-	if (clear & TIOCM_RTS)
-		info->MCR &= ~SER_RTS;
-	if (clear & TIOCM_DTR)
-		info->MCR &= ~SER_DTR;
-	rtsdtr_ctrl(info->MCR);
-	local_irq_restore(flags);
-	return 0;
-}
-
-/*
- * rs_break() --- routine which turns the break handling on or off
- */
-static int rs_break(struct tty_struct *tty, int break_state)
-{
-	struct async_struct * info = tty->driver_data;
-	unsigned long flags;
-
-	if (serial_paranoia_check(info, tty->name, "rs_break"))
-		return -EINVAL;
-
-	local_irq_save(flags);
-	if (break_state == -1)
-	  custom.adkcon = AC_SETCLR | AC_UARTBRK;
-	else
-	  custom.adkcon = AC_UARTBRK;
-	mb();
-	local_irq_restore(flags);
-	return 0;
-}
-
-/*
- * Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
- * Return: write counters to the user passed counter struct
- * NB: both 1->0 and 0->1 transitions are counted except for
- *     RI where only 0->1 is counted.
- */
-static int rs_get_icount(struct tty_struct *tty,
-				struct serial_icounter_struct *icount)
-{
-	struct async_struct *info = tty->driver_data;
-	struct async_icount cnow;
-	unsigned long flags;
-
-	local_irq_save(flags);
-	cnow = info->state->icount;
-	local_irq_restore(flags);
-	icount->cts = cnow.cts;
-	icount->dsr = cnow.dsr;
-	icount->rng = cnow.rng;
-	icount->dcd = cnow.dcd;
-	icount->rx = cnow.rx;
-	icount->tx = cnow.tx;
-	icount->frame = cnow.frame;
-	icount->overrun = cnow.overrun;
-	icount->parity = cnow.parity;
-	icount->brk = cnow.brk;
-	icount->buf_overrun = cnow.buf_overrun;
-
-	return 0;
-}
-
-static int rs_ioctl(struct tty_struct *tty,
-		    unsigned int cmd, unsigned long arg)
-{
-	struct async_struct * info = tty->driver_data;
-	struct async_icount cprev, cnow;	/* kernel counter temps */
-	void __user *argp = (void __user *)arg;
-	unsigned long flags;
-
-	if (serial_paranoia_check(info, tty->name, "rs_ioctl"))
-		return -ENODEV;
-
-	if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
-	    (cmd != TIOCSERCONFIG) && (cmd != TIOCSERGSTRUCT) &&
-	    (cmd != TIOCMIWAIT) && (cmd != TIOCGICOUNT)) {
-		if (tty->flags & (1 << TTY_IO_ERROR))
-		    return -EIO;
-	}
-
-	switch (cmd) {
-		case TIOCGSERIAL:
-			return get_serial_info(info, argp);
-		case TIOCSSERIAL:
-			return set_serial_info(info, argp);
-		case TIOCSERCONFIG:
-			return 0;
-
-		case TIOCSERGETLSR: /* Get line status register */
-			return get_lsr_info(info, argp);
-
-		case TIOCSERGSTRUCT:
-			if (copy_to_user(argp,
-					 info, sizeof(struct async_struct)))
-				return -EFAULT;
-			return 0;
-
-		/*
-		 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
-		 * - mask passed in arg for lines of interest
- 		 *   (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
-		 * Caller should use TIOCGICOUNT to see which one it was
-		 */
-		case TIOCMIWAIT:
-			local_irq_save(flags);
-			/* note the counters on entry */
-			cprev = info->state->icount;
-			local_irq_restore(flags);
-			while (1) {
-				interruptible_sleep_on(&info->delta_msr_wait);
-				/* see if a signal did it */
-				if (signal_pending(current))
-					return -ERESTARTSYS;
-				local_irq_save(flags);
-				cnow = info->state->icount; /* atomic copy */
-				local_irq_restore(flags);
-				if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && 
-				    cnow.dcd == cprev.dcd && cnow.cts == cprev.cts)
-					return -EIO; /* no change => error */
-				if ( ((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) ||
-				     ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) ||
-				     ((arg & TIOCM_CD)  && (cnow.dcd != cprev.dcd)) ||
-				     ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts)) ) {
-					return 0;
-				}
-				cprev = cnow;
-			}
-			/* NOTREACHED */
-
-		case TIOCSERGWILD:
-		case TIOCSERSWILD:
-			/* "setserial -W" is called in Debian boot */
-			printk ("TIOCSER?WILD ioctl obsolete, ignored.\n");
-			return 0;
-
-		default:
-			return -ENOIOCTLCMD;
-		}
-	return 0;
-}
-
-static void rs_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
-{
-	struct async_struct *info = tty->driver_data;
-	unsigned long flags;
-	unsigned int cflag = tty->termios->c_cflag;
-
-	change_speed(info, old_termios);
-
-	/* Handle transition to B0 status */
-	if ((old_termios->c_cflag & CBAUD) &&
-	    !(cflag & CBAUD)) {
-		info->MCR &= ~(SER_DTR|SER_RTS);
-		local_irq_save(flags);
-		rtsdtr_ctrl(info->MCR);
-		local_irq_restore(flags);
-	}
-
-	/* Handle transition away from B0 status */
-	if (!(old_termios->c_cflag & CBAUD) &&
-	    (cflag & CBAUD)) {
-		info->MCR |= SER_DTR;
-		if (!(tty->termios->c_cflag & CRTSCTS) || 
-		    !test_bit(TTY_THROTTLED, &tty->flags)) {
-			info->MCR |= SER_RTS;
-		}
-		local_irq_save(flags);
-		rtsdtr_ctrl(info->MCR);
-		local_irq_restore(flags);
-	}
-
-	/* Handle turning off CRTSCTS */
-	if ((old_termios->c_cflag & CRTSCTS) &&
-	    !(tty->termios->c_cflag & CRTSCTS)) {
-		tty->hw_stopped = 0;
-		rs_start(tty);
-	}
-
-#if 0
-	/*
-	 * No need to wake up processes in open wait, since they
-	 * sample the CLOCAL flag once, and don't recheck it.
-	 * XXX  It's not clear whether the current behavior is correct
-	 * or not.  Hence, this may change.....
-	 */
-	if (!(old_termios->c_cflag & CLOCAL) &&
-	    (tty->termios->c_cflag & CLOCAL))
-		wake_up_interruptible(&info->open_wait);
-#endif
-}
-
-/*
- * ------------------------------------------------------------
- * rs_close()
- * 
- * This routine is called when the serial port gets closed.  First, we
- * wait for the last remaining data to be sent.  Then, we unlink its
- * async structure from the interrupt chain if necessary, and we free
- * that IRQ if nothing is left in the chain.
- * ------------------------------------------------------------
- */
-static void rs_close(struct tty_struct *tty, struct file * filp)
-{
-	struct async_struct * info = tty->driver_data;
-	struct serial_state *state;
-	unsigned long flags;
-
-	if (!info || serial_paranoia_check(info, tty->name, "rs_close"))
-		return;
-
-	state = info->state;
-
-	local_irq_save(flags);
-
-	if (tty_hung_up_p(filp)) {
-		DBG_CNT("before DEC-hung");
-		local_irq_restore(flags);
-		return;
-	}
-
-#ifdef SERIAL_DEBUG_OPEN
-	printk("rs_close ttys%d, count = %d\n", info->line, state->count);
-#endif
-	if ((tty->count == 1) && (state->count != 1)) {
-		/*
-		 * Uh, oh.  tty->count is 1, which means that the tty
-		 * structure will be freed.  state->count should always
-		 * be one in these conditions.  If it's greater than
-		 * one, we've got real problems, since it means the
-		 * serial port won't be shutdown.
-		 */
-		printk("rs_close: bad serial port count; tty->count is 1, "
-		       "state->count is %d\n", state->count);
-		state->count = 1;
-	}
-	if (--state->count < 0) {
-		printk("rs_close: bad serial port count for ttys%d: %d\n",
-		       info->line, state->count);
-		state->count = 0;
-	}
-	if (state->count) {
-		DBG_CNT("before DEC-2");
-		local_irq_restore(flags);
-		return;
-	}
-	info->flags |= ASYNC_CLOSING;
-	/*
-	 * Now we wait for the transmit buffer to clear; and we notify 
-	 * the line discipline to only process XON/XOFF characters.
-	 */
-	tty->closing = 1;
-	if (info->closing_wait != ASYNC_CLOSING_WAIT_NONE)
-		tty_wait_until_sent(tty, info->closing_wait);
-	/*
-	 * At this point we stop accepting input.  To do this, we
-	 * disable the receive line status interrupts, and tell the
-	 * interrupt driver to stop checking the data ready bit in the
-	 * line status register.
-	 */
-	info->read_status_mask &= ~UART_LSR_DR;
-	if (info->flags & ASYNC_INITIALIZED) {
-	        /* disable receive interrupts */
-	        custom.intena = IF_RBF;
-		mb();
-		/* clear any pending receive interrupt */
-		custom.intreq = IF_RBF;
-		mb();
-
-		/*
-		 * Before we drop DTR, make sure the UART transmitter
-		 * has completely drained; this is especially
-		 * important if there is a transmit FIFO!
-		 */
-		rs_wait_until_sent(tty, info->timeout);
-	}
-	shutdown(info);
-	rs_flush_buffer(tty);
-		
-	tty_ldisc_flush(tty);
-	tty->closing = 0;
-	info->event = 0;
-	info->tty = NULL;
-	if (info->blocked_open) {
-		if (info->close_delay) {
-			msleep_interruptible(jiffies_to_msecs(info->close_delay));
-		}
-		wake_up_interruptible(&info->open_wait);
-	}
-	info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
-	wake_up_interruptible(&info->close_wait);
-	local_irq_restore(flags);
-}
-
-/*
- * rs_wait_until_sent() --- wait until the transmitter is empty
- */
-static void rs_wait_until_sent(struct tty_struct *tty, int timeout)
-{
-	struct async_struct * info = tty->driver_data;
-	unsigned long orig_jiffies, char_time;
-	int tty_was_locked = tty_locked();
-	int lsr;
-
-	if (serial_paranoia_check(info, tty->name, "rs_wait_until_sent"))
-		return;
-
-	if (info->xmit_fifo_size == 0)
-		return; /* Just in case.... */
-
-	orig_jiffies = jiffies;
-
-	/*
-	 * tty_wait_until_sent is called from lots of places,
-	 * with or without the BTM.
-	 */
-	if (!tty_was_locked)
-		tty_lock();
-	/*
-	 * Set the check interval to be 1/5 of the estimated time to
-	 * send a single character, and make it at least 1.  The check
-	 * interval should also be less than the timeout.
-	 * 
-	 * Note: we have to use pretty tight timings here to satisfy
-	 * the NIST-PCTS.
-	 */
-	char_time = (info->timeout - HZ/50) / info->xmit_fifo_size;
-	char_time = char_time / 5;
-	if (char_time == 0)
-		char_time = 1;
-	if (timeout)
-	  char_time = min_t(unsigned long, char_time, timeout);
-	/*
-	 * If the transmitter hasn't cleared in twice the approximate
-	 * amount of time to send the entire FIFO, it probably won't
-	 * ever clear.  This assumes the UART isn't doing flow
-	 * control, which is currently the case.  Hence, if it ever
-	 * takes longer than info->timeout, this is probably due to a
-	 * UART bug of some kind.  So, we clamp the timeout parameter at
-	 * 2*info->timeout.
-	 */
-	if (!timeout || timeout > 2*info->timeout)
-		timeout = 2*info->timeout;
-#ifdef SERIAL_DEBUG_RS_WAIT_UNTIL_SENT
-	printk("In rs_wait_until_sent(%d) check=%lu...", timeout, char_time);
-	printk("jiff=%lu...", jiffies);
-#endif
-	while(!((lsr = custom.serdatr) & SDR_TSRE)) {
-#ifdef SERIAL_DEBUG_RS_WAIT_UNTIL_SENT
-		printk("serdatr = %d (jiff=%lu)...", lsr, jiffies);
-#endif
-		msleep_interruptible(jiffies_to_msecs(char_time));
-		if (signal_pending(current))
-			break;
-		if (timeout && time_after(jiffies, orig_jiffies + timeout))
-			break;
-	}
-	__set_current_state(TASK_RUNNING);
-	if (!tty_was_locked)
-		tty_unlock();
-#ifdef SERIAL_DEBUG_RS_WAIT_UNTIL_SENT
-	printk("lsr = %d (jiff=%lu)...done\n", lsr, jiffies);
-#endif
-}
-
-/*
- * rs_hangup() --- called by tty_hangup() when a hangup is signaled.
- */
-static void rs_hangup(struct tty_struct *tty)
-{
-	struct async_struct * info = tty->driver_data;
-	struct serial_state *state = info->state;
-
-	if (serial_paranoia_check(info, tty->name, "rs_hangup"))
-		return;
-
-	state = info->state;
-
-	rs_flush_buffer(tty);
-	shutdown(info);
-	info->event = 0;
-	state->count = 0;
-	info->flags &= ~ASYNC_NORMAL_ACTIVE;
-	info->tty = NULL;
-	wake_up_interruptible(&info->open_wait);
-}
-
-/*
- * ------------------------------------------------------------
- * rs_open() and friends
- * ------------------------------------------------------------
- */
-static int block_til_ready(struct tty_struct *tty, struct file * filp,
-			   struct async_struct *info)
-{
-#ifdef DECLARE_WAITQUEUE
-	DECLARE_WAITQUEUE(wait, current);
-#else
-	struct wait_queue wait = { current, NULL };
-#endif
-	struct serial_state *state = info->state;
-	int		retval;
-	int		do_clocal = 0, extra_count = 0;
-	unsigned long	flags;
-
-	/*
-	 * If the device is in the middle of being closed, then block
-	 * until it's done, and then try again.
-	 */
-	if (tty_hung_up_p(filp) ||
-	    (info->flags & ASYNC_CLOSING)) {
-		if (info->flags & ASYNC_CLOSING)
-			interruptible_sleep_on(&info->close_wait);
-#ifdef SERIAL_DO_RESTART
-		return ((info->flags & ASYNC_HUP_NOTIFY) ?
-			-EAGAIN : -ERESTARTSYS);
-#else
-		return -EAGAIN;
-#endif
-	}
-
-	/*
-	 * If non-blocking mode is set, or the port is not enabled,
-	 * then make the check up front and then exit.
-	 */
-	if ((filp->f_flags & O_NONBLOCK) ||
-	    (tty->flags & (1 << TTY_IO_ERROR))) {
-		info->flags |= ASYNC_NORMAL_ACTIVE;
-		return 0;
-	}
-
-	if (tty->termios->c_cflag & CLOCAL)
-		do_clocal = 1;
-
-	/*
-	 * Block waiting for the carrier detect and the line to become
-	 * free (i.e., not in use by the callout).  While we are in
-	 * this loop, state->count is dropped by one, so that
-	 * rs_close() knows when to free things.  We restore it upon
-	 * exit, either normal or abnormal.
-	 */
-	retval = 0;
-	add_wait_queue(&info->open_wait, &wait);
-#ifdef SERIAL_DEBUG_OPEN
-	printk("block_til_ready before block: ttys%d, count = %d\n",
-	       state->line, state->count);
-#endif
-	local_irq_save(flags);
-	if (!tty_hung_up_p(filp)) {
-		extra_count = 1;
-		state->count--;
-	}
-	local_irq_restore(flags);
-	info->blocked_open++;
-	while (1) {
-		local_irq_save(flags);
-		if (tty->termios->c_cflag & CBAUD)
-		        rtsdtr_ctrl(SER_DTR|SER_RTS);
-		local_irq_restore(flags);
-		set_current_state(TASK_INTERRUPTIBLE);
-		if (tty_hung_up_p(filp) ||
-		    !(info->flags & ASYNC_INITIALIZED)) {
-#ifdef SERIAL_DO_RESTART
-			if (info->flags & ASYNC_HUP_NOTIFY)
-				retval = -EAGAIN;
-			else
-				retval = -ERESTARTSYS;
-#else
-			retval = -EAGAIN;
-#endif
-			break;
-		}
-		if (!(info->flags & ASYNC_CLOSING) &&
-		    (do_clocal || (!(ciab.pra & SER_DCD)) ))
-			break;
-		if (signal_pending(current)) {
-			retval = -ERESTARTSYS;
-			break;
-		}
-#ifdef SERIAL_DEBUG_OPEN
-		printk("block_til_ready blocking: ttys%d, count = %d\n",
-		       info->line, state->count);
-#endif
-		tty_unlock();
-		schedule();
-		tty_lock();
-	}
-	__set_current_state(TASK_RUNNING);
-	remove_wait_queue(&info->open_wait, &wait);
-	if (extra_count)
-		state->count++;
-	info->blocked_open--;
-#ifdef SERIAL_DEBUG_OPEN
-	printk("block_til_ready after blocking: ttys%d, count = %d\n",
-	       info->line, state->count);
-#endif
-	if (retval)
-		return retval;
-	info->flags |= ASYNC_NORMAL_ACTIVE;
-	return 0;
-}
-
-static int get_async_struct(int line, struct async_struct **ret_info)
-{
-	struct async_struct *info;
-	struct serial_state *sstate;
-
-	sstate = rs_table + line;
-	sstate->count++;
-	if (sstate->info) {
-		*ret_info = sstate->info;
-		return 0;
-	}
-	info = kzalloc(sizeof(struct async_struct), GFP_KERNEL);
-	if (!info) {
-		sstate->count--;
-		return -ENOMEM;
-	}
-#ifdef DECLARE_WAITQUEUE
-	init_waitqueue_head(&info->open_wait);
-	init_waitqueue_head(&info->close_wait);
-	init_waitqueue_head(&info->delta_msr_wait);
-#endif
-	info->magic = SERIAL_MAGIC;
-	info->port = sstate->port;
-	info->flags = sstate->flags;
-	info->xmit_fifo_size = sstate->xmit_fifo_size;
-	info->line = line;
-	tasklet_init(&info->tlet, do_softint, (unsigned long)info);
-	info->state = sstate;
-	if (sstate->info) {
-		kfree(info);
-		*ret_info = sstate->info;
-		return 0;
-	}
-	*ret_info = sstate->info = info;
-	return 0;
-}
-
-/*
- * This routine is called whenever a serial port is opened.  It
- * enables interrupts for a serial port, linking in its async structure into
- * the IRQ chain.   It also performs the serial-specific
- * initialization for the tty structure.
- */
-static int rs_open(struct tty_struct *tty, struct file * filp)
-{
-	struct async_struct	*info;
-	int 			retval, line;
-
-	line = tty->index;
-	if ((line < 0) || (line >= NR_PORTS)) {
-		return -ENODEV;
-	}
-	retval = get_async_struct(line, &info);
-	if (retval) {
-		return retval;
-	}
-	tty->driver_data = info;
-	info->tty = tty;
-	if (serial_paranoia_check(info, tty->name, "rs_open"))
-		return -ENODEV;
-
-#ifdef SERIAL_DEBUG_OPEN
-	printk("rs_open %s, count = %d\n", tty->name, info->state->count);
-#endif
-	info->tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
-
-	/*
-	 * If the port is the middle of closing, bail out now
-	 */
-	if (tty_hung_up_p(filp) ||
-	    (info->flags & ASYNC_CLOSING)) {
-		if (info->flags & ASYNC_CLOSING)
-			interruptible_sleep_on(&info->close_wait);
-#ifdef SERIAL_DO_RESTART
-		return ((info->flags & ASYNC_HUP_NOTIFY) ?
-			-EAGAIN : -ERESTARTSYS);
-#else
-		return -EAGAIN;
-#endif
-	}
-
-	/*
-	 * Start up serial port
-	 */
-	retval = startup(info);
-	if (retval) {
-		return retval;
-	}
-
-	retval = block_til_ready(tty, filp, info);
-	if (retval) {
-#ifdef SERIAL_DEBUG_OPEN
-		printk("rs_open returning after block_til_ready with %d\n",
-		       retval);
-#endif
-		return retval;
-	}
-
-#ifdef SERIAL_DEBUG_OPEN
-	printk("rs_open %s successful...", tty->name);
-#endif
-	return 0;
-}
-
-/*
- * /proc fs routines....
- */
-
-static inline void line_info(struct seq_file *m, struct serial_state *state)
-{
-	struct async_struct *info = state->info, scr_info;
-	char	stat_buf[30], control, status;
-	unsigned long flags;
-
-	seq_printf(m, "%d: uart:amiga_builtin",state->line);
-
-	/*
-	 * Figure out the current RS-232 lines
-	 */
-	if (!info) {
-		info = &scr_info;	/* This is just for serial_{in,out} */
-
-		info->magic = SERIAL_MAGIC;
-		info->flags = state->flags;
-		info->quot = 0;
-		info->tty = NULL;
-	}
-	local_irq_save(flags);
-	status = ciab.pra;
-	control = info ? info->MCR : status;
-	local_irq_restore(flags);
-
-	stat_buf[0] = 0;
-	stat_buf[1] = 0;
-	if(!(control & SER_RTS))
-		strcat(stat_buf, "|RTS");
-	if(!(status & SER_CTS))
-		strcat(stat_buf, "|CTS");
-	if(!(control & SER_DTR))
-		strcat(stat_buf, "|DTR");
-	if(!(status & SER_DSR))
-		strcat(stat_buf, "|DSR");
-	if(!(status & SER_DCD))
-		strcat(stat_buf, "|CD");
-
-	if (info->quot) {
-		seq_printf(m, " baud:%d", state->baud_base / info->quot);
-	}
-
-	seq_printf(m, " tx:%d rx:%d", state->icount.tx, state->icount.rx);
-
-	if (state->icount.frame)
-		seq_printf(m, " fe:%d", state->icount.frame);
-
-	if (state->icount.parity)
-		seq_printf(m, " pe:%d", state->icount.parity);
-
-	if (state->icount.brk)
-		seq_printf(m, " brk:%d", state->icount.brk);
-
-	if (state->icount.overrun)
-		seq_printf(m, " oe:%d", state->icount.overrun);
-
-	/*
-	 * Last thing is the RS-232 status lines
-	 */
-	seq_printf(m, " %s\n", stat_buf+1);
-}
-
-static int rs_proc_show(struct seq_file *m, void *v)
-{
-	seq_printf(m, "serinfo:1.0 driver:%s\n", serial_version);
-	line_info(m, &rs_table[0]);
-	return 0;
-}
-
-static int rs_proc_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, rs_proc_show, NULL);
-}
-
-static const struct file_operations rs_proc_fops = {
-	.owner		= THIS_MODULE,
-	.open		= rs_proc_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-
-/*
- * ---------------------------------------------------------------------
- * rs_init() and friends
- *
- * rs_init() is called at boot-time to initialize the serial driver.
- * ---------------------------------------------------------------------
- */
-
-/*
- * This routine prints out the appropriate serial driver version
- * number, and identifies which options were configured into this
- * driver.
- */
-static void show_serial_version(void)
-{
- 	printk(KERN_INFO "%s version %s\n", serial_name, serial_version);
-}
-
-
-static const struct tty_operations serial_ops = {
-	.open = rs_open,
-	.close = rs_close,
-	.write = rs_write,
-	.put_char = rs_put_char,
-	.flush_chars = rs_flush_chars,
-	.write_room = rs_write_room,
-	.chars_in_buffer = rs_chars_in_buffer,
-	.flush_buffer = rs_flush_buffer,
-	.ioctl = rs_ioctl,
-	.throttle = rs_throttle,
-	.unthrottle = rs_unthrottle,
-	.set_termios = rs_set_termios,
-	.stop = rs_stop,
-	.start = rs_start,
-	.hangup = rs_hangup,
-	.break_ctl = rs_break,
-	.send_xchar = rs_send_xchar,
-	.wait_until_sent = rs_wait_until_sent,
-	.tiocmget = rs_tiocmget,
-	.tiocmset = rs_tiocmset,
-	.get_icount = rs_get_icount,
-	.proc_fops = &rs_proc_fops,
-};
-
-/*
- * The serial driver boot-time initialization code!
- */
-static int __init amiga_serial_probe(struct platform_device *pdev)
-{
-	unsigned long flags;
-	struct serial_state * state;
-	int error;
-
-	serial_driver = alloc_tty_driver(1);
-	if (!serial_driver)
-		return -ENOMEM;
-
-	IRQ_ports = NULL;
-
-	show_serial_version();
-
-	/* Initialize the tty_driver structure */
-
-	serial_driver->owner = THIS_MODULE;
-	serial_driver->driver_name = "amiserial";
-	serial_driver->name = "ttyS";
-	serial_driver->major = TTY_MAJOR;
-	serial_driver->minor_start = 64;
-	serial_driver->type = TTY_DRIVER_TYPE_SERIAL;
-	serial_driver->subtype = SERIAL_TYPE_NORMAL;
-	serial_driver->init_termios = tty_std_termios;
-	serial_driver->init_termios.c_cflag =
-		B9600 | CS8 | CREAD | HUPCL | CLOCAL;
-	serial_driver->flags = TTY_DRIVER_REAL_RAW;
-	tty_set_operations(serial_driver, &serial_ops);
-
-	error = tty_register_driver(serial_driver);
-	if (error)
-		goto fail_put_tty_driver;
-
-	state = rs_table;
-	state->magic = SSTATE_MAGIC;
-	state->port = (int)&custom.serdatr; /* Just to give it a value */
-	state->line = 0;
-	state->custom_divisor = 0;
-	state->close_delay = 5*HZ/10;
-	state->closing_wait = 30*HZ;
-	state->icount.cts = state->icount.dsr = 
-	  state->icount.rng = state->icount.dcd = 0;
-	state->icount.rx = state->icount.tx = 0;
-	state->icount.frame = state->icount.parity = 0;
-	state->icount.overrun = state->icount.brk = 0;
-
-	printk(KERN_INFO "ttyS%d is the amiga builtin serial port\n",
-		       state->line);
-
-	/* Hardware set up */
-
-	state->baud_base = amiga_colorclock;
-	state->xmit_fifo_size = 1;
-
-	/* set ISRs, and then disable the rx interrupts */
-	error = request_irq(IRQ_AMIGA_TBE, ser_tx_int, 0, "serial TX", state);
-	if (error)
-		goto fail_unregister;
-
-	error = request_irq(IRQ_AMIGA_RBF, ser_rx_int, IRQF_DISABLED,
-			    "serial RX", state);
-	if (error)
-		goto fail_free_irq;
-
-	local_irq_save(flags);
-
-	/* turn off Rx and Tx interrupts */
-	custom.intena = IF_RBF | IF_TBE;
-	mb();
-
-	/* clear any pending interrupt */
-	custom.intreq = IF_RBF | IF_TBE;
-	mb();
-
-	local_irq_restore(flags);
-
-	/*
-	 * set the appropriate directions for the modem control flags,
-	 * and clear RTS and DTR
-	 */
-	ciab.ddra |= (SER_DTR | SER_RTS);   /* outputs */
-	ciab.ddra &= ~(SER_DCD | SER_CTS | SER_DSR);  /* inputs */
-
-	platform_set_drvdata(pdev, state);
-
-	return 0;
-
-fail_free_irq:
-	free_irq(IRQ_AMIGA_TBE, state);
-fail_unregister:
-	tty_unregister_driver(serial_driver);
-fail_put_tty_driver:
-	put_tty_driver(serial_driver);
-	return error;
-}
-
-static int __exit amiga_serial_remove(struct platform_device *pdev)
-{
-	int error;
-	struct serial_state *state = platform_get_drvdata(pdev);
-	struct async_struct *info = state->info;
-
-	/* printk("Unloading %s: version %s\n", serial_name, serial_version); */
-	tasklet_kill(&info->tlet);
-	if ((error = tty_unregister_driver(serial_driver)))
-		printk("SERIAL: failed to unregister serial driver (%d)\n",
-		       error);
-	put_tty_driver(serial_driver);
-
-	rs_table[0].info = NULL;
-	kfree(info);
-
-	free_irq(IRQ_AMIGA_TBE, rs_table);
-	free_irq(IRQ_AMIGA_RBF, rs_table);
-
-	platform_set_drvdata(pdev, NULL);
-
-	return error;
-}
-
-static struct platform_driver amiga_serial_driver = {
-	.remove = __exit_p(amiga_serial_remove),
-	.driver   = {
-		.name	= "amiga-serial",
-		.owner	= THIS_MODULE,
-	},
-};
-
-static int __init amiga_serial_init(void)
-{
-	return platform_driver_probe(&amiga_serial_driver, amiga_serial_probe);
-}
-
-module_init(amiga_serial_init);
-
-static void __exit amiga_serial_exit(void)
-{
-	platform_driver_unregister(&amiga_serial_driver);
-}
-
-module_exit(amiga_serial_exit);
-
-
-#if defined(CONFIG_SERIAL_CONSOLE) && !defined(MODULE)
-
-/*
- * ------------------------------------------------------------
- * Serial console driver
- * ------------------------------------------------------------
- */
-
-static void amiga_serial_putc(char c)
-{
-	custom.serdat = (unsigned char)c | 0x100;
-	while (!(custom.serdatr & 0x2000))
-		barrier();
-}
-
-/*
- *	Print a string to the serial port trying not to disturb
- *	any possible real use of the port...
- *
- *	The console must be locked when we get here.
- */
-static void serial_console_write(struct console *co, const char *s,
-				unsigned count)
-{
-	unsigned short intena = custom.intenar;
-
-	custom.intena = IF_TBE;
-
-	while (count--) {
-		if (*s == '\n')
-			amiga_serial_putc('\r');
-		amiga_serial_putc(*s++);
-	}
-
-	custom.intena = IF_SETCLR | (intena & IF_TBE);
-}
-
-static struct tty_driver *serial_console_device(struct console *c, int *index)
-{
-	*index = 0;
-	return serial_driver;
-}
-
-static struct console sercons = {
-	.name =		"ttyS",
-	.write =	serial_console_write,
-	.device =	serial_console_device,
-	.flags =	CON_PRINTBUFFER,
-	.index =	-1,
-};
-
-/*
- *	Register console.
- */
-static int __init amiserial_console_init(void)
-{
-	register_console(&sercons);
-	return 0;
-}
-console_initcall(amiserial_console_init);
-
-#endif /* CONFIG_SERIAL_CONSOLE && !MODULE */
-
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:amiga-serial");
diff --git a/drivers/char/bfin_jtag_comm.c b/drivers/char/bfin_jtag_comm.c
deleted file mode 100644
index 16402445f2b2..000000000000
--- a/drivers/char/bfin_jtag_comm.c
+++ /dev/null
@@ -1,366 +0,0 @@
-/*
- * TTY over Blackfin JTAG Communication
- *
- * Copyright 2008-2009 Analog Devices Inc.
- *
- * Enter bugs at http://blackfin.uclinux.org/
- *
- * Licensed under the GPL-2 or later.
- */
-
-#define DRV_NAME "bfin-jtag-comm"
-#define DEV_NAME "ttyBFJC"
-#define pr_fmt(fmt) DRV_NAME ": " fmt
-
-#include <linux/circ_buf.h>
-#include <linux/console.h>
-#include <linux/delay.h>
-#include <linux/err.h>
-#include <linux/kernel.h>
-#include <linux/kthread.h>
-#include <linux/module.h>
-#include <linux/mutex.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/tty.h>
-#include <linux/tty_driver.h>
-#include <linux/tty_flip.h>
-#include <asm/atomic.h>
-
-#define pr_init(fmt, args...) ({ static const __initconst char __fmt[] = fmt; printk(__fmt, ## args); })
-
-/* See the Debug/Emulation chapter in the HRM */
-#define EMUDOF   0x00000001	/* EMUDAT_OUT full & valid */
-#define EMUDIF   0x00000002	/* EMUDAT_IN full & valid */
-#define EMUDOOVF 0x00000004	/* EMUDAT_OUT overflow */
-#define EMUDIOVF 0x00000008	/* EMUDAT_IN overflow */
-
-static inline uint32_t bfin_write_emudat(uint32_t emudat)
-{
-	__asm__ __volatile__("emudat = %0;" : : "d"(emudat));
-	return emudat;
-}
-
-static inline uint32_t bfin_read_emudat(void)
-{
-	uint32_t emudat;
-	__asm__ __volatile__("%0 = emudat;" : "=d"(emudat));
-	return emudat;
-}
-
-static inline uint32_t bfin_write_emudat_chars(char a, char b, char c, char d)
-{
-	return bfin_write_emudat((a << 0) | (b << 8) | (c << 16) | (d << 24));
-}
-
-#define CIRC_SIZE 2048	/* see comment in tty_io.c:do_tty_write() */
-#define CIRC_MASK (CIRC_SIZE - 1)
-#define circ_empty(circ)     ((circ)->head == (circ)->tail)
-#define circ_free(circ)      CIRC_SPACE((circ)->head, (circ)->tail, CIRC_SIZE)
-#define circ_cnt(circ)       CIRC_CNT((circ)->head, (circ)->tail, CIRC_SIZE)
-#define circ_byte(circ, idx) ((circ)->buf[(idx) & CIRC_MASK])
-
-static struct tty_driver *bfin_jc_driver;
-static struct task_struct *bfin_jc_kthread;
-static struct tty_struct * volatile bfin_jc_tty;
-static unsigned long bfin_jc_count;
-static DEFINE_MUTEX(bfin_jc_tty_mutex);
-static volatile struct circ_buf bfin_jc_write_buf;
-
-static int
-bfin_jc_emudat_manager(void *arg)
-{
-	uint32_t inbound_len = 0, outbound_len = 0;
-
-	while (!kthread_should_stop()) {
-		/* no one left to give data to, so sleep */
-		if (bfin_jc_tty == NULL && circ_empty(&bfin_jc_write_buf)) {
-			pr_debug("waiting for readers\n");
-			__set_current_state(TASK_UNINTERRUPTIBLE);
-			schedule();
-			__set_current_state(TASK_RUNNING);
-		}
-
-		/* no data available, so just chill */
-		if (!(bfin_read_DBGSTAT() & EMUDIF) && circ_empty(&bfin_jc_write_buf)) {
-			pr_debug("waiting for data (in_len = %i) (circ: %i %i)\n",
-				inbound_len, bfin_jc_write_buf.tail, bfin_jc_write_buf.head);
-			if (inbound_len)
-				schedule();
-			else
-				schedule_timeout_interruptible(HZ);
-			continue;
-		}
-
-		/* if incoming data is ready, eat it */
-		if (bfin_read_DBGSTAT() & EMUDIF) {
-			struct tty_struct *tty;
-			mutex_lock(&bfin_jc_tty_mutex);
-			tty = (struct tty_struct *)bfin_jc_tty;
-			if (tty != NULL) {
-				uint32_t emudat = bfin_read_emudat();
-				if (inbound_len == 0) {
-					pr_debug("incoming length: 0x%08x\n", emudat);
-					inbound_len = emudat;
-				} else {
-					size_t num_chars = (4 <= inbound_len ? 4 : inbound_len);
-					pr_debug("  incoming data: 0x%08x (pushing %zu)\n", emudat, num_chars);
-					inbound_len -= num_chars;
-					tty_insert_flip_string(tty, (unsigned char *)&emudat, num_chars);
-					tty_flip_buffer_push(tty);
-				}
-			}
-			mutex_unlock(&bfin_jc_tty_mutex);
-		}
-
-		/* if outgoing data is ready, post it */
-		if (!(bfin_read_DBGSTAT() & EMUDOF) && !circ_empty(&bfin_jc_write_buf)) {
-			if (outbound_len == 0) {
-				outbound_len = circ_cnt(&bfin_jc_write_buf);
-				bfin_write_emudat(outbound_len);
-				pr_debug("outgoing length: 0x%08x\n", outbound_len);
-			} else {
-				struct tty_struct *tty;
-				int tail = bfin_jc_write_buf.tail;
-				size_t ate = (4 <= outbound_len ? 4 : outbound_len);
-				uint32_t emudat =
-				bfin_write_emudat_chars(
-					circ_byte(&bfin_jc_write_buf, tail + 0),
-					circ_byte(&bfin_jc_write_buf, tail + 1),
-					circ_byte(&bfin_jc_write_buf, tail + 2),
-					circ_byte(&bfin_jc_write_buf, tail + 3)
-				);
-				bfin_jc_write_buf.tail += ate;
-				outbound_len -= ate;
-				mutex_lock(&bfin_jc_tty_mutex);
-				tty = (struct tty_struct *)bfin_jc_tty;
-				if (tty)
-					tty_wakeup(tty);
-				mutex_unlock(&bfin_jc_tty_mutex);
-				pr_debug("  outgoing data: 0x%08x (pushing %zu)\n", emudat, ate);
-			}
-		}
-	}
-
-	__set_current_state(TASK_RUNNING);
-	return 0;
-}
-
-static int
-bfin_jc_open(struct tty_struct *tty, struct file *filp)
-{
-	mutex_lock(&bfin_jc_tty_mutex);
-	pr_debug("open %lu\n", bfin_jc_count);
-	++bfin_jc_count;
-	bfin_jc_tty = tty;
-	wake_up_process(bfin_jc_kthread);
-	mutex_unlock(&bfin_jc_tty_mutex);
-	return 0;
-}
-
-static void
-bfin_jc_close(struct tty_struct *tty, struct file *filp)
-{
-	mutex_lock(&bfin_jc_tty_mutex);
-	pr_debug("close %lu\n", bfin_jc_count);
-	if (--bfin_jc_count == 0)
-		bfin_jc_tty = NULL;
-	wake_up_process(bfin_jc_kthread);
-	mutex_unlock(&bfin_jc_tty_mutex);
-}
-
-/* XXX: we dont handle the put_char() case where we must handle count = 1 */
-static int
-bfin_jc_circ_write(const unsigned char *buf, int count)
-{
-	int i;
-	count = min(count, circ_free(&bfin_jc_write_buf));
-	pr_debug("going to write chunk of %i bytes\n", count);
-	for (i = 0; i < count; ++i)
-		circ_byte(&bfin_jc_write_buf, bfin_jc_write_buf.head + i) = buf[i];
-	bfin_jc_write_buf.head += i;
-	return i;
-}
-
-#ifndef CONFIG_BFIN_JTAG_COMM_CONSOLE
-# define console_lock()
-# define console_unlock()
-#endif
-static int
-bfin_jc_write(struct tty_struct *tty, const unsigned char *buf, int count)
-{
-	int i;
-	console_lock();
-	i = bfin_jc_circ_write(buf, count);
-	console_unlock();
-	wake_up_process(bfin_jc_kthread);
-	return i;
-}
-
-static void
-bfin_jc_flush_chars(struct tty_struct *tty)
-{
-	wake_up_process(bfin_jc_kthread);
-}
-
-static int
-bfin_jc_write_room(struct tty_struct *tty)
-{
-	return circ_free(&bfin_jc_write_buf);
-}
-
-static int
-bfin_jc_chars_in_buffer(struct tty_struct *tty)
-{
-	return circ_cnt(&bfin_jc_write_buf);
-}
-
-static void
-bfin_jc_wait_until_sent(struct tty_struct *tty, int timeout)
-{
-	unsigned long expire = jiffies + timeout;
-	while (!circ_empty(&bfin_jc_write_buf)) {
-		if (signal_pending(current))
-			break;
-		if (time_after(jiffies, expire))
-			break;
-	}
-}
-
-static const struct tty_operations bfin_jc_ops = {
-	.open            = bfin_jc_open,
-	.close           = bfin_jc_close,
-	.write           = bfin_jc_write,
-	/*.put_char        = bfin_jc_put_char,*/
-	.flush_chars     = bfin_jc_flush_chars,
-	.write_room      = bfin_jc_write_room,
-	.chars_in_buffer = bfin_jc_chars_in_buffer,
-	.wait_until_sent = bfin_jc_wait_until_sent,
-};
-
-static int __init bfin_jc_init(void)
-{
-	int ret;
-
-	bfin_jc_kthread = kthread_create(bfin_jc_emudat_manager, NULL, DRV_NAME);
-	if (IS_ERR(bfin_jc_kthread))
-		return PTR_ERR(bfin_jc_kthread);
-
-	ret = -ENOMEM;
-
-	bfin_jc_write_buf.head = bfin_jc_write_buf.tail = 0;
-	bfin_jc_write_buf.buf = kmalloc(CIRC_SIZE, GFP_KERNEL);
-	if (!bfin_jc_write_buf.buf)
-		goto err;
-
-	bfin_jc_driver = alloc_tty_driver(1);
-	if (!bfin_jc_driver)
-		goto err;
-
-	bfin_jc_driver->owner        = THIS_MODULE;
-	bfin_jc_driver->driver_name  = DRV_NAME;
-	bfin_jc_driver->name         = DEV_NAME;
-	bfin_jc_driver->type         = TTY_DRIVER_TYPE_SERIAL;
-	bfin_jc_driver->subtype      = SERIAL_TYPE_NORMAL;
-	bfin_jc_driver->init_termios = tty_std_termios;
-	tty_set_operations(bfin_jc_driver, &bfin_jc_ops);
-
-	ret = tty_register_driver(bfin_jc_driver);
-	if (ret)
-		goto err;
-
-	pr_init(KERN_INFO DRV_NAME ": initialized\n");
-
-	return 0;
-
- err:
-	put_tty_driver(bfin_jc_driver);
-	kfree(bfin_jc_write_buf.buf);
-	kthread_stop(bfin_jc_kthread);
-	return ret;
-}
-module_init(bfin_jc_init);
-
-static void __exit bfin_jc_exit(void)
-{
-	kthread_stop(bfin_jc_kthread);
-	kfree(bfin_jc_write_buf.buf);
-	tty_unregister_driver(bfin_jc_driver);
-	put_tty_driver(bfin_jc_driver);
-}
-module_exit(bfin_jc_exit);
-
-#if defined(CONFIG_BFIN_JTAG_COMM_CONSOLE) || defined(CONFIG_EARLY_PRINTK)
-static void
-bfin_jc_straight_buffer_write(const char *buf, unsigned count)
-{
-	unsigned ate = 0;
-	while (bfin_read_DBGSTAT() & EMUDOF)
-		continue;
-	bfin_write_emudat(count);
-	while (ate < count) {
-		while (bfin_read_DBGSTAT() & EMUDOF)
-			continue;
-		bfin_write_emudat_chars(buf[ate], buf[ate+1], buf[ate+2], buf[ate+3]);
-		ate += 4;
-	}
-}
-#endif
-
-#ifdef CONFIG_BFIN_JTAG_COMM_CONSOLE
-static void
-bfin_jc_console_write(struct console *co, const char *buf, unsigned count)
-{
-	if (bfin_jc_kthread == NULL)
-		bfin_jc_straight_buffer_write(buf, count);
-	else
-		bfin_jc_circ_write(buf, count);
-}
-
-static struct tty_driver *
-bfin_jc_console_device(struct console *co, int *index)
-{
-	*index = co->index;
-	return bfin_jc_driver;
-}
-
-static struct console bfin_jc_console = {
-	.name    = DEV_NAME,
-	.write   = bfin_jc_console_write,
-	.device  = bfin_jc_console_device,
-	.flags   = CON_ANYTIME | CON_PRINTBUFFER,
-	.index   = -1,
-};
-
-static int __init bfin_jc_console_init(void)
-{
-	register_console(&bfin_jc_console);
-	return 0;
-}
-console_initcall(bfin_jc_console_init);
-#endif
-
-#ifdef CONFIG_EARLY_PRINTK
-static void __init
-bfin_jc_early_write(struct console *co, const char *buf, unsigned int count)
-{
-	bfin_jc_straight_buffer_write(buf, count);
-}
-
-static struct __initdata console bfin_jc_early_console = {
-	.name   = "early_BFJC",
-	.write   = bfin_jc_early_write,
-	.flags   = CON_ANYTIME | CON_PRINTBUFFER,
-	.index   = -1,
-};
-
-struct console * __init
-bfin_jc_early_init(unsigned int port, unsigned int cflag)
-{
-	return &bfin_jc_early_console;
-}
-#endif
-
-MODULE_AUTHOR("Mike Frysinger <vapier@gentoo.org>");
-MODULE_DESCRIPTION("TTY over Blackfin JTAG Communication");
-MODULE_LICENSE("GPL");
diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c
deleted file mode 100644
index c99728f0cd9f..000000000000
--- a/drivers/char/cyclades.c
+++ /dev/null
@@ -1,4200 +0,0 @@
-#undef	BLOCKMOVE
-#define	Z_WAKE
-#undef	Z_EXT_CHARS_IN_BUFFER
-
-/*
- *  linux/drivers/char/cyclades.c
- *
- * This file contains the driver for the Cyclades async multiport
- * serial boards.
- *
- * Initially written by Randolph Bentson <bentson@grieg.seaslug.org>.
- * Modified and maintained by Marcio Saito <marcio@cyclades.com>.
- *
- * Copyright (C) 2007-2009 Jiri Slaby <jirislaby@gmail.com>
- *
- * Much of the design and some of the code came from serial.c
- * which was copyright (C) 1991, 1992  Linus Torvalds.  It was
- * extensively rewritten by Theodore Ts'o, 8/16/92 -- 9/14/92,
- * and then fixed as suggested by Michael K. Johnson 12/12/92.
- * Converted to pci probing and cleaned up by Jiri Slaby.
- *
- */
-
-#define CY_VERSION	"2.6"
-
-/* If you need to install more boards than NR_CARDS, change the constant
-   in the definition below. No other change is necessary to support up to
-   eight boards. Beyond that you'll have to extend cy_isa_addresses. */
-
-#define NR_CARDS	4
-
-/*
-   If the total number of ports is larger than NR_PORTS, change this
-   constant in the definition below. No other change is necessary to
-   support more boards/ports. */
-
-#define NR_PORTS	256
-
-#define ZO_V1	0
-#define ZO_V2	1
-#define ZE_V1	2
-
-#define	SERIAL_PARANOIA_CHECK
-#undef	CY_DEBUG_OPEN
-#undef	CY_DEBUG_THROTTLE
-#undef	CY_DEBUG_OTHER
-#undef	CY_DEBUG_IO
-#undef	CY_DEBUG_COUNT
-#undef	CY_DEBUG_DTR
-#undef	CY_DEBUG_WAIT_UNTIL_SENT
-#undef	CY_DEBUG_INTERRUPTS
-#undef	CY_16Y_HACK
-#undef	CY_ENABLE_MONITORING
-#undef	CY_PCI_DEBUG
-
-/*
- * Include section
- */
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/serial.h>
-#include <linux/major.h>
-#include <linux/string.h>
-#include <linux/fcntl.h>
-#include <linux/ptrace.h>
-#include <linux/cyclades.h>
-#include <linux/mm.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/spinlock.h>
-#include <linux/bitops.h>
-#include <linux/firmware.h>
-#include <linux/device.h>
-#include <linux/slab.h>
-
-#include <linux/io.h>
-#include <linux/uaccess.h>
-
-#include <linux/kernel.h>
-#include <linux/pci.h>
-
-#include <linux/stat.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-
-static void cy_send_xchar(struct tty_struct *tty, char ch);
-
-#ifndef SERIAL_XMIT_SIZE
-#define	SERIAL_XMIT_SIZE	(min(PAGE_SIZE, 4096))
-#endif
-
-#define STD_COM_FLAGS (0)
-
-/* firmware stuff */
-#define ZL_MAX_BLOCKS	16
-#define DRIVER_VERSION	0x02010203
-#define RAM_SIZE 0x80000
-
-enum zblock_type {
-	ZBLOCK_PRG = 0,
-	ZBLOCK_FPGA = 1
-};
-
-struct zfile_header {
-	char name[64];
-	char date[32];
-	char aux[32];
-	u32 n_config;
-	u32 config_offset;
-	u32 n_blocks;
-	u32 block_offset;
-	u32 reserved[9];
-} __attribute__ ((packed));
-
-struct zfile_config {
-	char name[64];
-	u32 mailbox;
-	u32 function;
-	u32 n_blocks;
-	u32 block_list[ZL_MAX_BLOCKS];
-} __attribute__ ((packed));
-
-struct zfile_block {
-	u32 type;
-	u32 file_offset;
-	u32 ram_offset;
-	u32 size;
-} __attribute__ ((packed));
-
-static struct tty_driver *cy_serial_driver;
-
-#ifdef CONFIG_ISA
-/* This is the address lookup table. The driver will probe for
-   Cyclom-Y/ISA boards at all addresses in here. If you want the
-   driver to probe addresses at a different address, add it to
-   this table.  If the driver is probing some other board and
-   causing problems, remove the offending address from this table.
-*/
-
-static unsigned int cy_isa_addresses[] = {
-	0xD0000,
-	0xD2000,
-	0xD4000,
-	0xD6000,
-	0xD8000,
-	0xDA000,
-	0xDC000,
-	0xDE000,
-	0, 0, 0, 0, 0, 0, 0, 0
-};
-
-#define NR_ISA_ADDRS ARRAY_SIZE(cy_isa_addresses)
-
-static long maddr[NR_CARDS];
-static int irq[NR_CARDS];
-
-module_param_array(maddr, long, NULL, 0);
-module_param_array(irq, int, NULL, 0);
-
-#endif				/* CONFIG_ISA */
-
-/* This is the per-card data structure containing address, irq, number of
-   channels, etc. This driver supports a maximum of NR_CARDS cards.
-*/
-static struct cyclades_card cy_card[NR_CARDS];
-
-static int cy_next_channel;	/* next minor available */
-
-/*
- * This is used to look up the divisor speeds and the timeouts
- * We're normally limited to 15 distinct baud rates.  The extra
- * are accessed via settings in info->port.flags.
- *      0,     1,     2,     3,     4,     5,     6,     7,     8,     9,
- *     10,    11,    12,    13,    14,    15,    16,    17,    18,    19,
- *                                               HI            VHI
- *     20
- */
-static const int baud_table[] = {
-	0, 50, 75, 110, 134, 150, 200, 300, 600, 1200,
-	1800, 2400, 4800, 9600, 19200, 38400, 57600, 76800, 115200, 150000,
-	230400, 0
-};
-
-static const char baud_co_25[] = {	/* 25 MHz clock option table */
-	/* value =>    00    01   02    03    04 */
-	/* divide by    8    32   128   512  2048 */
-	0x00, 0x04, 0x04, 0x04, 0x04, 0x04, 0x03, 0x03, 0x03, 0x02,
-	0x02, 0x02, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-};
-
-static const char baud_bpr_25[] = {	/* 25 MHz baud rate period table */
-	0x00, 0xf5, 0xa3, 0x6f, 0x5c, 0x51, 0xf5, 0xa3, 0x51, 0xa3,
-	0x6d, 0x51, 0xa3, 0x51, 0xa3, 0x51, 0x36, 0x29, 0x1b, 0x15
-};
-
-static const char baud_co_60[] = {	/* 60 MHz clock option table (CD1400 J) */
-	/* value =>    00    01   02    03    04 */
-	/* divide by    8    32   128   512  2048 */
-	0x00, 0x00, 0x00, 0x04, 0x04, 0x04, 0x04, 0x04, 0x03, 0x03,
-	0x03, 0x02, 0x02, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00
-};
-
-static const char baud_bpr_60[] = {	/* 60 MHz baud rate period table (CD1400 J) */
-	0x00, 0x82, 0x21, 0xff, 0xdb, 0xc3, 0x92, 0x62, 0xc3, 0x62,
-	0x41, 0xc3, 0x62, 0xc3, 0x62, 0xc3, 0x82, 0x62, 0x41, 0x32,
-	0x21
-};
-
-static const char baud_cor3[] = {	/* receive threshold */
-	0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a,
-	0x0a, 0x0a, 0x0a, 0x09, 0x09, 0x08, 0x08, 0x08, 0x08, 0x07,
-	0x07
-};
-
-/*
- * The Cyclades driver implements HW flow control as any serial driver.
- * The cyclades_port structure member rflow and the vector rflow_thr
- * allows us to take advantage of a special feature in the CD1400 to avoid
- * data loss even when the system interrupt latency is too high. These flags
- * are to be used only with very special applications. Setting these flags
- * requires the use of a special cable (DTR and RTS reversed). In the new
- * CD1400-based boards (rev. 6.00 or later), there is no need for special
- * cables.
- */
-
-static const char rflow_thr[] = {	/* rflow threshold */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a,
-	0x0a
-};
-
-/*  The Cyclom-Ye has placed the sequential chips in non-sequential
- *  address order.  This look-up table overcomes that problem.
- */
-static const unsigned int cy_chip_offset[] = { 0x0000,
-	0x0400,
-	0x0800,
-	0x0C00,
-	0x0200,
-	0x0600,
-	0x0A00,
-	0x0E00
-};
-
-/* PCI related definitions */
-
-#ifdef CONFIG_PCI
-static const struct pci_device_id cy_pci_dev_id[] = {
-	/* PCI < 1Mb */
-	{ PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Y_Lo) },
-	/* PCI > 1Mb */
-	{ PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Y_Hi) },
-	/* 4Y PCI < 1Mb */
-	{ PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_4Y_Lo) },
-	/* 4Y PCI > 1Mb */
-	{ PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_4Y_Hi) },
-	/* 8Y PCI < 1Mb */
-	{ PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_8Y_Lo) },
-	/* 8Y PCI > 1Mb */
-	{ PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_8Y_Hi) },
-	/* Z PCI < 1Mb */
-	{ PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Z_Lo) },
-	/* Z PCI > 1Mb */
-	{ PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Z_Hi) },
-	{ }			/* end of table */
-};
-MODULE_DEVICE_TABLE(pci, cy_pci_dev_id);
-#endif
-
-static void cy_start(struct tty_struct *);
-static void cy_set_line_char(struct cyclades_port *, struct tty_struct *);
-static int cyz_issue_cmd(struct cyclades_card *, __u32, __u8, __u32);
-#ifdef CONFIG_ISA
-static unsigned detect_isa_irq(void __iomem *);
-#endif				/* CONFIG_ISA */
-
-#ifndef CONFIG_CYZ_INTR
-static void cyz_poll(unsigned long);
-
-/* The Cyclades-Z polling cycle is defined by this variable */
-static long cyz_polling_cycle = CZ_DEF_POLL;
-
-static DEFINE_TIMER(cyz_timerlist, cyz_poll, 0, 0);
-
-#else				/* CONFIG_CYZ_INTR */
-static void cyz_rx_restart(unsigned long);
-static struct timer_list cyz_rx_full_timer[NR_PORTS];
-#endif				/* CONFIG_CYZ_INTR */
-
-static inline void cyy_writeb(struct cyclades_port *port, u32 reg, u8 val)
-{
-	struct cyclades_card *card = port->card;
-
-	cy_writeb(port->u.cyy.base_addr + (reg << card->bus_index), val);
-}
-
-static inline u8 cyy_readb(struct cyclades_port *port, u32 reg)
-{
-	struct cyclades_card *card = port->card;
-
-	return readb(port->u.cyy.base_addr + (reg << card->bus_index));
-}
-
-static inline bool cy_is_Z(struct cyclades_card *card)
-{
-	return card->num_chips == (unsigned int)-1;
-}
-
-static inline bool __cyz_fpga_loaded(struct RUNTIME_9060 __iomem *ctl_addr)
-{
-	return readl(&ctl_addr->init_ctrl) & (1 << 17);
-}
-
-static inline bool cyz_fpga_loaded(struct cyclades_card *card)
-{
-	return __cyz_fpga_loaded(card->ctl_addr.p9060);
-}
-
-static inline bool cyz_is_loaded(struct cyclades_card *card)
-{
-	struct FIRM_ID __iomem *fw_id = card->base_addr + ID_ADDRESS;
-
-	return (card->hw_ver == ZO_V1 || cyz_fpga_loaded(card)) &&
-			readl(&fw_id->signature) == ZFIRM_ID;
-}
-
-static inline int serial_paranoia_check(struct cyclades_port *info,
-		const char *name, const char *routine)
-{
-#ifdef SERIAL_PARANOIA_CHECK
-	if (!info) {
-		printk(KERN_WARNING "cyc Warning: null cyclades_port for (%s) "
-				"in %s\n", name, routine);
-		return 1;
-	}
-
-	if (info->magic != CYCLADES_MAGIC) {
-		printk(KERN_WARNING "cyc Warning: bad magic number for serial "
-				"struct (%s) in %s\n", name, routine);
-		return 1;
-	}
-#endif
-	return 0;
-}
-
-/***********************************************************/
-/********* Start of block of Cyclom-Y specific code ********/
-
-/* This routine waits up to 1000 micro-seconds for the previous
-   command to the Cirrus chip to complete and then issues the
-   new command.  An error is returned if the previous command
-   didn't finish within the time limit.
-
-   This function is only called from inside spinlock-protected code.
- */
-static int __cyy_issue_cmd(void __iomem *base_addr, u8 cmd, int index)
-{
-	void __iomem *ccr = base_addr + (CyCCR << index);
-	unsigned int i;
-
-	/* Check to see that the previous command has completed */
-	for (i = 0; i < 100; i++) {
-		if (readb(ccr) == 0)
-			break;
-		udelay(10L);
-	}
-	/* if the CCR never cleared, the previous command
-	   didn't finish within the "reasonable time" */
-	if (i == 100)
-		return -1;
-
-	/* Issue the new command */
-	cy_writeb(ccr, cmd);
-
-	return 0;
-}
-
-static inline int cyy_issue_cmd(struct cyclades_port *port, u8 cmd)
-{
-	return __cyy_issue_cmd(port->u.cyy.base_addr, cmd,
-			port->card->bus_index);
-}
-
-#ifdef CONFIG_ISA
-/* ISA interrupt detection code */
-static unsigned detect_isa_irq(void __iomem *address)
-{
-	int irq;
-	unsigned long irqs, flags;
-	int save_xir, save_car;
-	int index = 0;		/* IRQ probing is only for ISA */
-
-	/* forget possible initially masked and pending IRQ */
-	irq = probe_irq_off(probe_irq_on());
-
-	/* Clear interrupts on the board first */
-	cy_writeb(address + (Cy_ClrIntr << index), 0);
-	/* Cy_ClrIntr is 0x1800 */
-
-	irqs = probe_irq_on();
-	/* Wait ... */
-	msleep(5);
-
-	/* Enable the Tx interrupts on the CD1400 */
-	local_irq_save(flags);
-	cy_writeb(address + (CyCAR << index), 0);
-	__cyy_issue_cmd(address, CyCHAN_CTL | CyENB_XMTR, index);
-
-	cy_writeb(address + (CyCAR << index), 0);
-	cy_writeb(address + (CySRER << index),
-		  readb(address + (CySRER << index)) | CyTxRdy);
-	local_irq_restore(flags);
-
-	/* Wait ... */
-	msleep(5);
-
-	/* Check which interrupt is in use */
-	irq = probe_irq_off(irqs);
-
-	/* Clean up */
-	save_xir = (u_char) readb(address + (CyTIR << index));
-	save_car = readb(address + (CyCAR << index));
-	cy_writeb(address + (CyCAR << index), (save_xir & 0x3));
-	cy_writeb(address + (CySRER << index),
-		  readb(address + (CySRER << index)) & ~CyTxRdy);
-	cy_writeb(address + (CyTIR << index), (save_xir & 0x3f));
-	cy_writeb(address + (CyCAR << index), (save_car));
-	cy_writeb(address + (Cy_ClrIntr << index), 0);
-	/* Cy_ClrIntr is 0x1800 */
-
-	return (irq > 0) ? irq : 0;
-}
-#endif				/* CONFIG_ISA */
-
-static void cyy_chip_rx(struct cyclades_card *cinfo, int chip,
-		void __iomem *base_addr)
-{
-	struct cyclades_port *info;
-	struct tty_struct *tty;
-	int len, index = cinfo->bus_index;
-	u8 ivr, save_xir, channel, save_car, data, char_count;
-
-#ifdef CY_DEBUG_INTERRUPTS
-	printk(KERN_DEBUG "cyy_interrupt: rcvd intr, chip %d\n", chip);
-#endif
-	/* determine the channel & change to that context */
-	save_xir = readb(base_addr + (CyRIR << index));
-	channel = save_xir & CyIRChannel;
-	info = &cinfo->ports[channel + chip * 4];
-	save_car = cyy_readb(info, CyCAR);
-	cyy_writeb(info, CyCAR, save_xir);
-	ivr = cyy_readb(info, CyRIVR) & CyIVRMask;
-
-	tty = tty_port_tty_get(&info->port);
-	/* if there is nowhere to put the data, discard it */
-	if (tty == NULL) {
-		if (ivr == CyIVRRxEx) {	/* exception */
-			data = cyy_readb(info, CyRDSR);
-		} else {	/* normal character reception */
-			char_count = cyy_readb(info, CyRDCR);
-			while (char_count--)
-				data = cyy_readb(info, CyRDSR);
-		}
-		goto end;
-	}
-	/* there is an open port for this data */
-	if (ivr == CyIVRRxEx) {	/* exception */
-		data = cyy_readb(info, CyRDSR);
-
-		/* For statistics only */
-		if (data & CyBREAK)
-			info->icount.brk++;
-		else if (data & CyFRAME)
-			info->icount.frame++;
-		else if (data & CyPARITY)
-			info->icount.parity++;
-		else if (data & CyOVERRUN)
-			info->icount.overrun++;
-
-		if (data & info->ignore_status_mask) {
-			info->icount.rx++;
-			tty_kref_put(tty);
-			return;
-		}
-		if (tty_buffer_request_room(tty, 1)) {
-			if (data & info->read_status_mask) {
-				if (data & CyBREAK) {
-					tty_insert_flip_char(tty,
-						cyy_readb(info, CyRDSR),
-						TTY_BREAK);
-					info->icount.rx++;
-					if (info->port.flags & ASYNC_SAK)
-						do_SAK(tty);
-				} else if (data & CyFRAME) {
-					tty_insert_flip_char(tty,
-						cyy_readb(info, CyRDSR),
-						TTY_FRAME);
-					info->icount.rx++;
-					info->idle_stats.frame_errs++;
-				} else if (data & CyPARITY) {
-					/* Pieces of seven... */
-					tty_insert_flip_char(tty,
-						cyy_readb(info, CyRDSR),
-						TTY_PARITY);
-					info->icount.rx++;
-					info->idle_stats.parity_errs++;
-				} else if (data & CyOVERRUN) {
-					tty_insert_flip_char(tty, 0,
-							TTY_OVERRUN);
-					info->icount.rx++;
-					/* If the flip buffer itself is
-					   overflowing, we still lose
-					   the next incoming character.
-					 */
-					tty_insert_flip_char(tty,
-						cyy_readb(info, CyRDSR),
-						TTY_FRAME);
-					info->icount.rx++;
-					info->idle_stats.overruns++;
-				/* These two conditions may imply */
-				/* a normal read should be done. */
-				/* } else if(data & CyTIMEOUT) { */
-				/* } else if(data & CySPECHAR) { */
-				} else {
-					tty_insert_flip_char(tty, 0,
-							TTY_NORMAL);
-					info->icount.rx++;
-				}
-			} else {
-				tty_insert_flip_char(tty, 0, TTY_NORMAL);
-				info->icount.rx++;
-			}
-		} else {
-			/* there was a software buffer overrun and nothing
-			 * could be done about it!!! */
-			info->icount.buf_overrun++;
-			info->idle_stats.overruns++;
-		}
-	} else {	/* normal character reception */
-		/* load # chars available from the chip */
-		char_count = cyy_readb(info, CyRDCR);
-
-#ifdef CY_ENABLE_MONITORING
-		++info->mon.int_count;
-		info->mon.char_count += char_count;
-		if (char_count > info->mon.char_max)
-			info->mon.char_max = char_count;
-		info->mon.char_last = char_count;
-#endif
-		len = tty_buffer_request_room(tty, char_count);
-		while (len--) {
-			data = cyy_readb(info, CyRDSR);
-			tty_insert_flip_char(tty, data, TTY_NORMAL);
-			info->idle_stats.recv_bytes++;
-			info->icount.rx++;
-#ifdef CY_16Y_HACK
-			udelay(10L);
-#endif
-		}
-		info->idle_stats.recv_idle = jiffies;
-	}
-	tty_schedule_flip(tty);
-	tty_kref_put(tty);
-end:
-	/* end of service */
-	cyy_writeb(info, CyRIR, save_xir & 0x3f);
-	cyy_writeb(info, CyCAR, save_car);
-}
-
-static void cyy_chip_tx(struct cyclades_card *cinfo, unsigned int chip,
-		void __iomem *base_addr)
-{
-	struct cyclades_port *info;
-	struct tty_struct *tty;
-	int char_count, index = cinfo->bus_index;
-	u8 save_xir, channel, save_car, outch;
-
-	/* Since we only get here when the transmit buffer
-	   is empty, we know we can always stuff a dozen
-	   characters. */
-#ifdef CY_DEBUG_INTERRUPTS
-	printk(KERN_DEBUG "cyy_interrupt: xmit intr, chip %d\n", chip);
-#endif
-
-	/* determine the channel & change to that context */
-	save_xir = readb(base_addr + (CyTIR << index));
-	channel = save_xir & CyIRChannel;
-	save_car = readb(base_addr + (CyCAR << index));
-	cy_writeb(base_addr + (CyCAR << index), save_xir);
-
-	info = &cinfo->ports[channel + chip * 4];
-	tty = tty_port_tty_get(&info->port);
-	if (tty == NULL) {
-		cyy_writeb(info, CySRER, cyy_readb(info, CySRER) & ~CyTxRdy);
-		goto end;
-	}
-
-	/* load the on-chip space for outbound data */
-	char_count = info->xmit_fifo_size;
-
-	if (info->x_char) {	/* send special char */
-		outch = info->x_char;
-		cyy_writeb(info, CyTDR, outch);
-		char_count--;
-		info->icount.tx++;
-		info->x_char = 0;
-	}
-
-	if (info->breakon || info->breakoff) {
-		if (info->breakon) {
-			cyy_writeb(info, CyTDR, 0);
-			cyy_writeb(info, CyTDR, 0x81);
-			info->breakon = 0;
-			char_count -= 2;
-		}
-		if (info->breakoff) {
-			cyy_writeb(info, CyTDR, 0);
-			cyy_writeb(info, CyTDR, 0x83);
-			info->breakoff = 0;
-			char_count -= 2;
-		}
-	}
-
-	while (char_count-- > 0) {
-		if (!info->xmit_cnt) {
-			if (cyy_readb(info, CySRER) & CyTxMpty) {
-				cyy_writeb(info, CySRER,
-					cyy_readb(info, CySRER) & ~CyTxMpty);
-			} else {
-				cyy_writeb(info, CySRER, CyTxMpty |
-					(cyy_readb(info, CySRER) & ~CyTxRdy));
-			}
-			goto done;
-		}
-		if (info->port.xmit_buf == NULL) {
-			cyy_writeb(info, CySRER,
-				cyy_readb(info, CySRER) & ~CyTxRdy);
-			goto done;
-		}
-		if (tty->stopped || tty->hw_stopped) {
-			cyy_writeb(info, CySRER,
-				cyy_readb(info, CySRER) & ~CyTxRdy);
-			goto done;
-		}
-		/* Because the Embedded Transmit Commands have been enabled,
-		 * we must check to see if the escape character, NULL, is being
-		 * sent. If it is, we must ensure that there is room for it to
-		 * be doubled in the output stream.  Therefore we no longer
-		 * advance the pointer when the character is fetched, but
-		 * rather wait until after the check for a NULL output
-		 * character. This is necessary because there may not be room
-		 * for the two chars needed to send a NULL.)
-		 */
-		outch = info->port.xmit_buf[info->xmit_tail];
-		if (outch) {
-			info->xmit_cnt--;
-			info->xmit_tail = (info->xmit_tail + 1) &
-					(SERIAL_XMIT_SIZE - 1);
-			cyy_writeb(info, CyTDR, outch);
-			info->icount.tx++;
-		} else {
-			if (char_count > 1) {
-				info->xmit_cnt--;
-				info->xmit_tail = (info->xmit_tail + 1) &
-					(SERIAL_XMIT_SIZE - 1);
-				cyy_writeb(info, CyTDR, outch);
-				cyy_writeb(info, CyTDR, 0);
-				info->icount.tx++;
-				char_count--;
-			}
-		}
-	}
-
-done:
-	tty_wakeup(tty);
-	tty_kref_put(tty);
-end:
-	/* end of service */
-	cyy_writeb(info, CyTIR, save_xir & 0x3f);
-	cyy_writeb(info, CyCAR, save_car);
-}
-
-static void cyy_chip_modem(struct cyclades_card *cinfo, int chip,
-		void __iomem *base_addr)
-{
-	struct cyclades_port *info;
-	struct tty_struct *tty;
-	int index = cinfo->bus_index;
-	u8 save_xir, channel, save_car, mdm_change, mdm_status;
-
-	/* determine the channel & change to that context */
-	save_xir = readb(base_addr + (CyMIR << index));
-	channel = save_xir & CyIRChannel;
-	info = &cinfo->ports[channel + chip * 4];
-	save_car = cyy_readb(info, CyCAR);
-	cyy_writeb(info, CyCAR, save_xir);
-
-	mdm_change = cyy_readb(info, CyMISR);
-	mdm_status = cyy_readb(info, CyMSVR1);
-
-	tty = tty_port_tty_get(&info->port);
-	if (!tty)
-		goto end;
-
-	if (mdm_change & CyANY_DELTA) {
-		/* For statistics only */
-		if (mdm_change & CyDCD)
-			info->icount.dcd++;
-		if (mdm_change & CyCTS)
-			info->icount.cts++;
-		if (mdm_change & CyDSR)
-			info->icount.dsr++;
-		if (mdm_change & CyRI)
-			info->icount.rng++;
-
-		wake_up_interruptible(&info->port.delta_msr_wait);
-	}
-
-	if ((mdm_change & CyDCD) && (info->port.flags & ASYNC_CHECK_CD)) {
-		if (mdm_status & CyDCD)
-			wake_up_interruptible(&info->port.open_wait);
-		else
-			tty_hangup(tty);
-	}
-	if ((mdm_change & CyCTS) && (info->port.flags & ASYNC_CTS_FLOW)) {
-		if (tty->hw_stopped) {
-			if (mdm_status & CyCTS) {
-				/* cy_start isn't used
-				   because... !!! */
-				tty->hw_stopped = 0;
-				cyy_writeb(info, CySRER,
-					cyy_readb(info, CySRER) | CyTxRdy);
-				tty_wakeup(tty);
-			}
-		} else {
-			if (!(mdm_status & CyCTS)) {
-				/* cy_stop isn't used
-				   because ... !!! */
-				tty->hw_stopped = 1;
-				cyy_writeb(info, CySRER,
-					cyy_readb(info, CySRER) & ~CyTxRdy);
-			}
-		}
-	}
-/*	if (mdm_change & CyDSR) {
-	}
-	if (mdm_change & CyRI) {
-	}*/
-	tty_kref_put(tty);
-end:
-	/* end of service */
-	cyy_writeb(info, CyMIR, save_xir & 0x3f);
-	cyy_writeb(info, CyCAR, save_car);
-}
-
-/* The real interrupt service routine is called
-   whenever the card wants its hand held--chars
-   received, out buffer empty, modem change, etc.
- */
-static irqreturn_t cyy_interrupt(int irq, void *dev_id)
-{
-	int status;
-	struct cyclades_card *cinfo = dev_id;
-	void __iomem *base_addr, *card_base_addr;
-	unsigned int chip, too_many, had_work;
-	int index;
-
-	if (unlikely(cinfo == NULL)) {
-#ifdef CY_DEBUG_INTERRUPTS
-		printk(KERN_DEBUG "cyy_interrupt: spurious interrupt %d\n",
-				irq);
-#endif
-		return IRQ_NONE;	/* spurious interrupt */
-	}
-
-	card_base_addr = cinfo->base_addr;
-	index = cinfo->bus_index;
-
-	/* card was not initialized yet (e.g. DEBUG_SHIRQ) */
-	if (unlikely(card_base_addr == NULL))
-		return IRQ_HANDLED;
-
-	/* This loop checks all chips in the card.  Make a note whenever
-	   _any_ chip had some work to do, as this is considered an
-	   indication that there will be more to do.  Only when no chip
-	   has any work does this outermost loop exit.
-	 */
-	do {
-		had_work = 0;
-		for (chip = 0; chip < cinfo->num_chips; chip++) {
-			base_addr = cinfo->base_addr +
-					(cy_chip_offset[chip] << index);
-			too_many = 0;
-			while ((status = readb(base_addr +
-						(CySVRR << index))) != 0x00) {
-				had_work++;
-			/* The purpose of the following test is to ensure that
-			   no chip can monopolize the driver.  This forces the
-			   chips to be checked in a round-robin fashion (after
-			   draining each of a bunch (1000) of characters).
-			 */
-				if (1000 < too_many++)
-					break;
-				spin_lock(&cinfo->card_lock);
-				if (status & CySRReceive) /* rx intr */
-					cyy_chip_rx(cinfo, chip, base_addr);
-				if (status & CySRTransmit) /* tx intr */
-					cyy_chip_tx(cinfo, chip, base_addr);
-				if (status & CySRModem) /* modem intr */
-					cyy_chip_modem(cinfo, chip, base_addr);
-				spin_unlock(&cinfo->card_lock);
-			}
-		}
-	} while (had_work);
-
-	/* clear interrupts */
-	spin_lock(&cinfo->card_lock);
-	cy_writeb(card_base_addr + (Cy_ClrIntr << index), 0);
-	/* Cy_ClrIntr is 0x1800 */
-	spin_unlock(&cinfo->card_lock);
-	return IRQ_HANDLED;
-}				/* cyy_interrupt */
-
-static void cyy_change_rts_dtr(struct cyclades_port *info, unsigned int set,
-		unsigned int clear)
-{
-	struct cyclades_card *card = info->card;
-	int channel = info->line - card->first_line;
-	u32 rts, dtr, msvrr, msvrd;
-
-	channel &= 0x03;
-
-	if (info->rtsdtr_inv) {
-		msvrr = CyMSVR2;
-		msvrd = CyMSVR1;
-		rts = CyDTR;
-		dtr = CyRTS;
-	} else {
-		msvrr = CyMSVR1;
-		msvrd = CyMSVR2;
-		rts = CyRTS;
-		dtr = CyDTR;
-	}
-	if (set & TIOCM_RTS) {
-		cyy_writeb(info, CyCAR, channel);
-		cyy_writeb(info, msvrr, rts);
-	}
-	if (clear & TIOCM_RTS) {
-		cyy_writeb(info, CyCAR, channel);
-		cyy_writeb(info, msvrr, ~rts);
-	}
-	if (set & TIOCM_DTR) {
-		cyy_writeb(info, CyCAR, channel);
-		cyy_writeb(info, msvrd, dtr);
-#ifdef CY_DEBUG_DTR
-		printk(KERN_DEBUG "cyc:set_modem_info raising DTR\n");
-		printk(KERN_DEBUG "     status: 0x%x, 0x%x\n",
-			cyy_readb(info, CyMSVR1),
-			cyy_readb(info, CyMSVR2));
-#endif
-	}
-	if (clear & TIOCM_DTR) {
-		cyy_writeb(info, CyCAR, channel);
-		cyy_writeb(info, msvrd, ~dtr);
-#ifdef CY_DEBUG_DTR
-		printk(KERN_DEBUG "cyc:set_modem_info dropping DTR\n");
-		printk(KERN_DEBUG "     status: 0x%x, 0x%x\n",
-			cyy_readb(info, CyMSVR1),
-			cyy_readb(info, CyMSVR2));
-#endif
-	}
-}
-
-/***********************************************************/
-/********* End of block of Cyclom-Y specific code **********/
-/******** Start of block of Cyclades-Z specific code *******/
-/***********************************************************/
-
-static int
-cyz_fetch_msg(struct cyclades_card *cinfo,
-		__u32 *channel, __u8 *cmd, __u32 *param)
-{
-	struct BOARD_CTRL __iomem *board_ctrl = cinfo->board_ctrl;
-	unsigned long loc_doorbell;
-
-	loc_doorbell = readl(&cinfo->ctl_addr.p9060->loc_doorbell);
-	if (loc_doorbell) {
-		*cmd = (char)(0xff & loc_doorbell);
-		*channel = readl(&board_ctrl->fwcmd_channel);
-		*param = (__u32) readl(&board_ctrl->fwcmd_param);
-		cy_writel(&cinfo->ctl_addr.p9060->loc_doorbell, 0xffffffff);
-		return 1;
-	}
-	return 0;
-}				/* cyz_fetch_msg */
-
-static int
-cyz_issue_cmd(struct cyclades_card *cinfo,
-		__u32 channel, __u8 cmd, __u32 param)
-{
-	struct BOARD_CTRL __iomem *board_ctrl = cinfo->board_ctrl;
-	__u32 __iomem *pci_doorbell;
-	unsigned int index;
-
-	if (!cyz_is_loaded(cinfo))
-		return -1;
-
-	index = 0;
-	pci_doorbell = &cinfo->ctl_addr.p9060->pci_doorbell;
-	while ((readl(pci_doorbell) & 0xff) != 0) {
-		if (index++ == 1000)
-			return (int)(readl(pci_doorbell) & 0xff);
-		udelay(50L);
-	}
-	cy_writel(&board_ctrl->hcmd_channel, channel);
-	cy_writel(&board_ctrl->hcmd_param, param);
-	cy_writel(pci_doorbell, (long)cmd);
-
-	return 0;
-}				/* cyz_issue_cmd */
-
-static void cyz_handle_rx(struct cyclades_port *info, struct tty_struct *tty)
-{
-	struct BUF_CTRL __iomem *buf_ctrl = info->u.cyz.buf_ctrl;
-	struct cyclades_card *cinfo = info->card;
-	unsigned int char_count;
-	int len;
-#ifdef BLOCKMOVE
-	unsigned char *buf;
-#else
-	char data;
-#endif
-	__u32 rx_put, rx_get, new_rx_get, rx_bufsize, rx_bufaddr;
-
-	rx_get = new_rx_get = readl(&buf_ctrl->rx_get);
-	rx_put = readl(&buf_ctrl->rx_put);
-	rx_bufsize = readl(&buf_ctrl->rx_bufsize);
-	rx_bufaddr = readl(&buf_ctrl->rx_bufaddr);
-	if (rx_put >= rx_get)
-		char_count = rx_put - rx_get;
-	else
-		char_count = rx_put - rx_get + rx_bufsize;
-
-	if (char_count) {
-#ifdef CY_ENABLE_MONITORING
-		info->mon.int_count++;
-		info->mon.char_count += char_count;
-		if (char_count > info->mon.char_max)
-			info->mon.char_max = char_count;
-		info->mon.char_last = char_count;
-#endif
-		if (tty == NULL) {
-			/* flush received characters */
-			new_rx_get = (new_rx_get + char_count) &
-					(rx_bufsize - 1);
-			info->rflush_count++;
-		} else {
-#ifdef BLOCKMOVE
-		/* we'd like to use memcpy(t, f, n) and memset(s, c, count)
-		   for performance, but because of buffer boundaries, there
-		   may be several steps to the operation */
-			while (1) {
-				len = tty_prepare_flip_string(tty, &buf,
-						char_count);
-				if (!len)
-					break;
-
-				len = min_t(unsigned int, min(len, char_count),
-						rx_bufsize - new_rx_get);
-
-				memcpy_fromio(buf, cinfo->base_addr +
-						rx_bufaddr + new_rx_get, len);
-
-				new_rx_get = (new_rx_get + len) &
-						(rx_bufsize - 1);
-				char_count -= len;
-				info->icount.rx += len;
-				info->idle_stats.recv_bytes += len;
-			}
-#else
-			len = tty_buffer_request_room(tty, char_count);
-			while (len--) {
-				data = readb(cinfo->base_addr + rx_bufaddr +
-						new_rx_get);
-				new_rx_get = (new_rx_get + 1) &
-							(rx_bufsize - 1);
-				tty_insert_flip_char(tty, data, TTY_NORMAL);
-				info->idle_stats.recv_bytes++;
-				info->icount.rx++;
-			}
-#endif
-#ifdef CONFIG_CYZ_INTR
-		/* Recalculate the number of chars in the RX buffer and issue
-		   a cmd in case it's higher than the RX high water mark */
-			rx_put = readl(&buf_ctrl->rx_put);
-			if (rx_put >= rx_get)
-				char_count = rx_put - rx_get;
-			else
-				char_count = rx_put - rx_get + rx_bufsize;
-			if (char_count >= readl(&buf_ctrl->rx_threshold) &&
-					!timer_pending(&cyz_rx_full_timer[
-							info->line]))
-				mod_timer(&cyz_rx_full_timer[info->line],
-						jiffies + 1);
-#endif
-			info->idle_stats.recv_idle = jiffies;
-			tty_schedule_flip(tty);
-		}
-		/* Update rx_get */
-		cy_writel(&buf_ctrl->rx_get, new_rx_get);
-	}
-}
-
-static void cyz_handle_tx(struct cyclades_port *info, struct tty_struct *tty)
-{
-	struct BUF_CTRL __iomem *buf_ctrl = info->u.cyz.buf_ctrl;
-	struct cyclades_card *cinfo = info->card;
-	u8 data;
-	unsigned int char_count;
-#ifdef BLOCKMOVE
-	int small_count;
-#endif
-	__u32 tx_put, tx_get, tx_bufsize, tx_bufaddr;
-
-	if (info->xmit_cnt <= 0)	/* Nothing to transmit */
-		return;
-
-	tx_get = readl(&buf_ctrl->tx_get);
-	tx_put = readl(&buf_ctrl->tx_put);
-	tx_bufsize = readl(&buf_ctrl->tx_bufsize);
-	tx_bufaddr = readl(&buf_ctrl->tx_bufaddr);
-	if (tx_put >= tx_get)
-		char_count = tx_get - tx_put - 1 + tx_bufsize;
-	else
-		char_count = tx_get - tx_put - 1;
-
-	if (char_count) {
-
-		if (tty == NULL)
-			goto ztxdone;
-
-		if (info->x_char) {	/* send special char */
-			data = info->x_char;
-
-			cy_writeb(cinfo->base_addr + tx_bufaddr + tx_put, data);
-			tx_put = (tx_put + 1) & (tx_bufsize - 1);
-			info->x_char = 0;
-			char_count--;
-			info->icount.tx++;
-		}
-#ifdef BLOCKMOVE
-		while (0 < (small_count = min_t(unsigned int,
-				tx_bufsize - tx_put, min_t(unsigned int,
-					(SERIAL_XMIT_SIZE - info->xmit_tail),
-					min_t(unsigned int, info->xmit_cnt,
-						char_count))))) {
-
-			memcpy_toio((char *)(cinfo->base_addr + tx_bufaddr +
-					tx_put),
-					&info->port.xmit_buf[info->xmit_tail],
-					small_count);
-
-			tx_put = (tx_put + small_count) & (tx_bufsize - 1);
-			char_count -= small_count;
-			info->icount.tx += small_count;
-			info->xmit_cnt -= small_count;
-			info->xmit_tail = (info->xmit_tail + small_count) &
-					(SERIAL_XMIT_SIZE - 1);
-		}
-#else
-		while (info->xmit_cnt && char_count) {
-			data = info->port.xmit_buf[info->xmit_tail];
-			info->xmit_cnt--;
-			info->xmit_tail = (info->xmit_tail + 1) &
-					(SERIAL_XMIT_SIZE - 1);
-
-			cy_writeb(cinfo->base_addr + tx_bufaddr + tx_put, data);
-			tx_put = (tx_put + 1) & (tx_bufsize - 1);
-			char_count--;
-			info->icount.tx++;
-		}
-#endif
-		tty_wakeup(tty);
-ztxdone:
-		/* Update tx_put */
-		cy_writel(&buf_ctrl->tx_put, tx_put);
-	}
-}
-
-static void cyz_handle_cmd(struct cyclades_card *cinfo)
-{
-	struct BOARD_CTRL __iomem *board_ctrl = cinfo->board_ctrl;
-	struct tty_struct *tty;
-	struct cyclades_port *info;
-	__u32 channel, param, fw_ver;
-	__u8 cmd;
-	int special_count;
-	int delta_count;
-
-	fw_ver = readl(&board_ctrl->fw_version);
-
-	while (cyz_fetch_msg(cinfo, &channel, &cmd, &param) == 1) {
-		special_count = 0;
-		delta_count = 0;
-		info = &cinfo->ports[channel];
-		tty = tty_port_tty_get(&info->port);
-		if (tty == NULL)
-			continue;
-
-		switch (cmd) {
-		case C_CM_PR_ERROR:
-			tty_insert_flip_char(tty, 0, TTY_PARITY);
-			info->icount.rx++;
-			special_count++;
-			break;
-		case C_CM_FR_ERROR:
-			tty_insert_flip_char(tty, 0, TTY_FRAME);
-			info->icount.rx++;
-			special_count++;
-			break;
-		case C_CM_RXBRK:
-			tty_insert_flip_char(tty, 0, TTY_BREAK);
-			info->icount.rx++;
-			special_count++;
-			break;
-		case C_CM_MDCD:
-			info->icount.dcd++;
-			delta_count++;
-			if (info->port.flags & ASYNC_CHECK_CD) {
-				u32 dcd = fw_ver > 241 ? param :
-					readl(&info->u.cyz.ch_ctrl->rs_status);
-				if (dcd & C_RS_DCD)
-					wake_up_interruptible(&info->port.open_wait);
-				else
-					tty_hangup(tty);
-			}
-			break;
-		case C_CM_MCTS:
-			info->icount.cts++;
-			delta_count++;
-			break;
-		case C_CM_MRI:
-			info->icount.rng++;
-			delta_count++;
-			break;
-		case C_CM_MDSR:
-			info->icount.dsr++;
-			delta_count++;
-			break;
-#ifdef Z_WAKE
-		case C_CM_IOCTLW:
-			complete(&info->shutdown_wait);
-			break;
-#endif
-#ifdef CONFIG_CYZ_INTR
-		case C_CM_RXHIWM:
-		case C_CM_RXNNDT:
-		case C_CM_INTBACK2:
-			/* Reception Interrupt */
-#ifdef CY_DEBUG_INTERRUPTS
-			printk(KERN_DEBUG "cyz_interrupt: rcvd intr, card %d, "
-					"port %ld\n", info->card, channel);
-#endif
-			cyz_handle_rx(info, tty);
-			break;
-		case C_CM_TXBEMPTY:
-		case C_CM_TXLOWWM:
-		case C_CM_INTBACK:
-			/* Transmission Interrupt */
-#ifdef CY_DEBUG_INTERRUPTS
-			printk(KERN_DEBUG "cyz_interrupt: xmit intr, card %d, "
-					"port %ld\n", info->card, channel);
-#endif
-			cyz_handle_tx(info, tty);
-			break;
-#endif				/* CONFIG_CYZ_INTR */
-		case C_CM_FATAL:
-			/* should do something with this !!! */
-			break;
-		default:
-			break;
-		}
-		if (delta_count)
-			wake_up_interruptible(&info->port.delta_msr_wait);
-		if (special_count)
-			tty_schedule_flip(tty);
-		tty_kref_put(tty);
-	}
-}
-
-#ifdef CONFIG_CYZ_INTR
-static irqreturn_t cyz_interrupt(int irq, void *dev_id)
-{
-	struct cyclades_card *cinfo = dev_id;
-
-	if (unlikely(!cyz_is_loaded(cinfo))) {
-#ifdef CY_DEBUG_INTERRUPTS
-		printk(KERN_DEBUG "cyz_interrupt: board not yet loaded "
-				"(IRQ%d).\n", irq);
-#endif
-		return IRQ_NONE;
-	}
-
-	/* Handle the interrupts */
-	cyz_handle_cmd(cinfo);
-
-	return IRQ_HANDLED;
-}				/* cyz_interrupt */
-
-static void cyz_rx_restart(unsigned long arg)
-{
-	struct cyclades_port *info = (struct cyclades_port *)arg;
-	struct cyclades_card *card = info->card;
-	int retval;
-	__u32 channel = info->line - card->first_line;
-	unsigned long flags;
-
-	spin_lock_irqsave(&card->card_lock, flags);
-	retval = cyz_issue_cmd(card, channel, C_CM_INTBACK2, 0L);
-	if (retval != 0) {
-		printk(KERN_ERR "cyc:cyz_rx_restart retval on ttyC%d was %x\n",
-			info->line, retval);
-	}
-	spin_unlock_irqrestore(&card->card_lock, flags);
-}
-
-#else				/* CONFIG_CYZ_INTR */
-
-static void cyz_poll(unsigned long arg)
-{
-	struct cyclades_card *cinfo;
-	struct cyclades_port *info;
-	unsigned long expires = jiffies + HZ;
-	unsigned int port, card;
-
-	for (card = 0; card < NR_CARDS; card++) {
-		cinfo = &cy_card[card];
-
-		if (!cy_is_Z(cinfo))
-			continue;
-		if (!cyz_is_loaded(cinfo))
-			continue;
-
-	/* Skip first polling cycle to avoid racing conditions with the FW */
-		if (!cinfo->intr_enabled) {
-			cinfo->intr_enabled = 1;
-			continue;
-		}
-
-		cyz_handle_cmd(cinfo);
-
-		for (port = 0; port < cinfo->nports; port++) {
-			struct tty_struct *tty;
-
-			info = &cinfo->ports[port];
-			tty = tty_port_tty_get(&info->port);
-			/* OK to pass NULL to the handle functions below.
-			   They need to drop the data in that case. */
-
-			if (!info->throttle)
-				cyz_handle_rx(info, tty);
-			cyz_handle_tx(info, tty);
-			tty_kref_put(tty);
-		}
-		/* poll every 'cyz_polling_cycle' period */
-		expires = jiffies + cyz_polling_cycle;
-	}
-	mod_timer(&cyz_timerlist, expires);
-}				/* cyz_poll */
-
-#endif				/* CONFIG_CYZ_INTR */
-
-/********** End of block of Cyclades-Z specific code *********/
-/***********************************************************/
-
-/* This is called whenever a port becomes active;
-   interrupts are enabled and DTR & RTS are turned on.
- */
-static int cy_startup(struct cyclades_port *info, struct tty_struct *tty)
-{
-	struct cyclades_card *card;
-	unsigned long flags;
-	int retval = 0;
-	int channel;
-	unsigned long page;
-
-	card = info->card;
-	channel = info->line - card->first_line;
-
-	page = get_zeroed_page(GFP_KERNEL);
-	if (!page)
-		return -ENOMEM;
-
-	spin_lock_irqsave(&card->card_lock, flags);
-
-	if (info->port.flags & ASYNC_INITIALIZED)
-		goto errout;
-
-	if (!info->type) {
-		set_bit(TTY_IO_ERROR, &tty->flags);
-		goto errout;
-	}
-
-	if (info->port.xmit_buf)
-		free_page(page);
-	else
-		info->port.xmit_buf = (unsigned char *)page;
-
-	spin_unlock_irqrestore(&card->card_lock, flags);
-
-	cy_set_line_char(info, tty);
-
-	if (!cy_is_Z(card)) {
-		channel &= 0x03;
-
-		spin_lock_irqsave(&card->card_lock, flags);
-
-		cyy_writeb(info, CyCAR, channel);
-
-		cyy_writeb(info, CyRTPR,
-			(info->default_timeout ? info->default_timeout : 0x02));
-		/* 10ms rx timeout */
-
-		cyy_issue_cmd(info, CyCHAN_CTL | CyENB_RCVR | CyENB_XMTR);
-
-		cyy_change_rts_dtr(info, TIOCM_RTS | TIOCM_DTR, 0);
-
-		cyy_writeb(info, CySRER, cyy_readb(info, CySRER) | CyRxData);
-	} else {
-		struct CH_CTRL __iomem *ch_ctrl = info->u.cyz.ch_ctrl;
-
-		if (!cyz_is_loaded(card))
-			return -ENODEV;
-
-#ifdef CY_DEBUG_OPEN
-		printk(KERN_DEBUG "cyc startup Z card %d, channel %d, "
-			"base_addr %p\n", card, channel, card->base_addr);
-#endif
-		spin_lock_irqsave(&card->card_lock, flags);
-
-		cy_writel(&ch_ctrl->op_mode, C_CH_ENABLE);
-#ifdef Z_WAKE
-#ifdef CONFIG_CYZ_INTR
-		cy_writel(&ch_ctrl->intr_enable,
-			  C_IN_TXBEMPTY | C_IN_TXLOWWM | C_IN_RXHIWM |
-			  C_IN_RXNNDT | C_IN_IOCTLW | C_IN_MDCD);
-#else
-		cy_writel(&ch_ctrl->intr_enable,
-			  C_IN_IOCTLW | C_IN_MDCD);
-#endif				/* CONFIG_CYZ_INTR */
-#else
-#ifdef CONFIG_CYZ_INTR
-		cy_writel(&ch_ctrl->intr_enable,
-			  C_IN_TXBEMPTY | C_IN_TXLOWWM | C_IN_RXHIWM |
-			  C_IN_RXNNDT | C_IN_MDCD);
-#else
-		cy_writel(&ch_ctrl->intr_enable, C_IN_MDCD);
-#endif				/* CONFIG_CYZ_INTR */
-#endif				/* Z_WAKE */
-
-		retval = cyz_issue_cmd(card, channel, C_CM_IOCTL, 0L);
-		if (retval != 0) {
-			printk(KERN_ERR "cyc:startup(1) retval on ttyC%d was "
-				"%x\n", info->line, retval);
-		}
-
-		/* Flush RX buffers before raising DTR and RTS */
-		retval = cyz_issue_cmd(card, channel, C_CM_FLUSH_RX, 0L);
-		if (retval != 0) {
-			printk(KERN_ERR "cyc:startup(2) retval on ttyC%d was "
-				"%x\n", info->line, retval);
-		}
-
-		/* set timeout !!! */
-		/* set RTS and DTR !!! */
-		tty_port_raise_dtr_rts(&info->port);
-
-		/* enable send, recv, modem !!! */
-	}
-
-	info->port.flags |= ASYNC_INITIALIZED;
-
-	clear_bit(TTY_IO_ERROR, &tty->flags);
-	info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
-	info->breakon = info->breakoff = 0;
-	memset((char *)&info->idle_stats, 0, sizeof(info->idle_stats));
-	info->idle_stats.in_use =
-	info->idle_stats.recv_idle =
-	info->idle_stats.xmit_idle = jiffies;
-
-	spin_unlock_irqrestore(&card->card_lock, flags);
-
-#ifdef CY_DEBUG_OPEN
-	printk(KERN_DEBUG "cyc startup done\n");
-#endif
-	return 0;
-
-errout:
-	spin_unlock_irqrestore(&card->card_lock, flags);
-	free_page(page);
-	return retval;
-}				/* startup */
-
-static void start_xmit(struct cyclades_port *info)
-{
-	struct cyclades_card *card = info->card;
-	unsigned long flags;
-	int channel = info->line - card->first_line;
-
-	if (!cy_is_Z(card)) {
-		spin_lock_irqsave(&card->card_lock, flags);
-		cyy_writeb(info, CyCAR, channel & 0x03);
-		cyy_writeb(info, CySRER, cyy_readb(info, CySRER) | CyTxRdy);
-		spin_unlock_irqrestore(&card->card_lock, flags);
-	} else {
-#ifdef CONFIG_CYZ_INTR
-		int retval;
-
-		spin_lock_irqsave(&card->card_lock, flags);
-		retval = cyz_issue_cmd(card, channel, C_CM_INTBACK, 0L);
-		if (retval != 0) {
-			printk(KERN_ERR "cyc:start_xmit retval on ttyC%d was "
-				"%x\n", info->line, retval);
-		}
-		spin_unlock_irqrestore(&card->card_lock, flags);
-#else				/* CONFIG_CYZ_INTR */
-		/* Don't have to do anything at this time */
-#endif				/* CONFIG_CYZ_INTR */
-	}
-}				/* start_xmit */
-
-/*
- * This routine shuts down a serial port; interrupts are disabled,
- * and DTR is dropped if the hangup on close termio flag is on.
- */
-static void cy_shutdown(struct cyclades_port *info, struct tty_struct *tty)
-{
-	struct cyclades_card *card;
-	unsigned long flags;
-	int channel;
-
-	if (!(info->port.flags & ASYNC_INITIALIZED))
-		return;
-
-	card = info->card;
-	channel = info->line - card->first_line;
-	if (!cy_is_Z(card)) {
-		spin_lock_irqsave(&card->card_lock, flags);
-
-		/* Clear delta_msr_wait queue to avoid mem leaks. */
-		wake_up_interruptible(&info->port.delta_msr_wait);
-
-		if (info->port.xmit_buf) {
-			unsigned char *temp;
-			temp = info->port.xmit_buf;
-			info->port.xmit_buf = NULL;
-			free_page((unsigned long)temp);
-		}
-		if (tty->termios->c_cflag & HUPCL)
-			cyy_change_rts_dtr(info, 0, TIOCM_RTS | TIOCM_DTR);
-
-		cyy_issue_cmd(info, CyCHAN_CTL | CyDIS_RCVR);
-		/* it may be appropriate to clear _XMIT at
-		   some later date (after testing)!!! */
-
-		set_bit(TTY_IO_ERROR, &tty->flags);
-		info->port.flags &= ~ASYNC_INITIALIZED;
-		spin_unlock_irqrestore(&card->card_lock, flags);
-	} else {
-#ifdef CY_DEBUG_OPEN
-		printk(KERN_DEBUG "cyc shutdown Z card %d, channel %d, "
-			"base_addr %p\n", card, channel, card->base_addr);
-#endif
-
-		if (!cyz_is_loaded(card))
-			return;
-
-		spin_lock_irqsave(&card->card_lock, flags);
-
-		if (info->port.xmit_buf) {
-			unsigned char *temp;
-			temp = info->port.xmit_buf;
-			info->port.xmit_buf = NULL;
-			free_page((unsigned long)temp);
-		}
-
-		if (tty->termios->c_cflag & HUPCL)
-			tty_port_lower_dtr_rts(&info->port);
-
-		set_bit(TTY_IO_ERROR, &tty->flags);
-		info->port.flags &= ~ASYNC_INITIALIZED;
-
-		spin_unlock_irqrestore(&card->card_lock, flags);
-	}
-
-#ifdef CY_DEBUG_OPEN
-	printk(KERN_DEBUG "cyc shutdown done\n");
-#endif
-}				/* shutdown */
-
-/*
- * ------------------------------------------------------------
- * cy_open() and friends
- * ------------------------------------------------------------
- */
-
-/*
- * This routine is called whenever a serial port is opened.  It
- * performs the serial-specific initialization for the tty structure.
- */
-static int cy_open(struct tty_struct *tty, struct file *filp)
-{
-	struct cyclades_port *info;
-	unsigned int i, line;
-	int retval;
-
-	line = tty->index;
-	if (tty->index < 0 || NR_PORTS <= line)
-		return -ENODEV;
-
-	for (i = 0; i < NR_CARDS; i++)
-		if (line < cy_card[i].first_line + cy_card[i].nports &&
-				line >= cy_card[i].first_line)
-			break;
-	if (i >= NR_CARDS)
-		return -ENODEV;
-	info = &cy_card[i].ports[line - cy_card[i].first_line];
-	if (info->line < 0)
-		return -ENODEV;
-
-	/* If the card's firmware hasn't been loaded,
-	   treat it as absent from the system.  This
-	   will make the user pay attention.
-	 */
-	if (cy_is_Z(info->card)) {
-		struct cyclades_card *cinfo = info->card;
-		struct FIRM_ID __iomem *firm_id = cinfo->base_addr + ID_ADDRESS;
-
-		if (!cyz_is_loaded(cinfo)) {
-			if (cinfo->hw_ver == ZE_V1 && cyz_fpga_loaded(cinfo) &&
-					readl(&firm_id->signature) ==
-					ZFIRM_HLT) {
-				printk(KERN_ERR "cyc:Cyclades-Z Error: you "
-					"need an external power supply for "
-					"this number of ports.\nFirmware "
-					"halted.\n");
-			} else {
-				printk(KERN_ERR "cyc:Cyclades-Z firmware not "
-					"yet loaded\n");
-			}
-			return -ENODEV;
-		}
-#ifdef CONFIG_CYZ_INTR
-		else {
-		/* In case this Z board is operating in interrupt mode, its
-		   interrupts should be enabled as soon as the first open
-		   happens to one of its ports. */
-			if (!cinfo->intr_enabled) {
-				u16 intr;
-
-				/* Enable interrupts on the PLX chip */
-				intr = readw(&cinfo->ctl_addr.p9060->
-						intr_ctrl_stat) | 0x0900;
-				cy_writew(&cinfo->ctl_addr.p9060->
-						intr_ctrl_stat, intr);
-				/* Enable interrupts on the FW */
-				retval = cyz_issue_cmd(cinfo, 0,
-						C_CM_IRQ_ENBL, 0L);
-				if (retval != 0) {
-					printk(KERN_ERR "cyc:IRQ enable retval "
-						"was %x\n", retval);
-				}
-				cinfo->intr_enabled = 1;
-			}
-		}
-#endif				/* CONFIG_CYZ_INTR */
-		/* Make sure this Z port really exists in hardware */
-		if (info->line > (cinfo->first_line + cinfo->nports - 1))
-			return -ENODEV;
-	}
-#ifdef CY_DEBUG_OTHER
-	printk(KERN_DEBUG "cyc:cy_open ttyC%d\n", info->line);
-#endif
-	tty->driver_data = info;
-	if (serial_paranoia_check(info, tty->name, "cy_open"))
-		return -ENODEV;
-
-#ifdef CY_DEBUG_OPEN
-	printk(KERN_DEBUG "cyc:cy_open ttyC%d, count = %d\n", info->line,
-			info->port.count);
-#endif
-	info->port.count++;
-#ifdef CY_DEBUG_COUNT
-	printk(KERN_DEBUG "cyc:cy_open (%d): incrementing count to %d\n",
-		current->pid, info->port.count);
-#endif
-
-	/*
-	 * If the port is the middle of closing, bail out now
-	 */
-	if (tty_hung_up_p(filp) || (info->port.flags & ASYNC_CLOSING)) {
-		wait_event_interruptible_tty(info->port.close_wait,
-				!(info->port.flags & ASYNC_CLOSING));
-		return (info->port.flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS;
-	}
-
-	/*
-	 * Start up serial port
-	 */
-	retval = cy_startup(info, tty);
-	if (retval)
-		return retval;
-
-	retval = tty_port_block_til_ready(&info->port, tty, filp);
-	if (retval) {
-#ifdef CY_DEBUG_OPEN
-		printk(KERN_DEBUG "cyc:cy_open returning after block_til_ready "
-			"with %d\n", retval);
-#endif
-		return retval;
-	}
-
-	info->throttle = 0;
-	tty_port_tty_set(&info->port, tty);
-
-#ifdef CY_DEBUG_OPEN
-	printk(KERN_DEBUG "cyc:cy_open done\n");
-#endif
-	return 0;
-}				/* cy_open */
-
-/*
- * cy_wait_until_sent() --- wait until the transmitter is empty
- */
-static void cy_wait_until_sent(struct tty_struct *tty, int timeout)
-{
-	struct cyclades_card *card;
-	struct cyclades_port *info = tty->driver_data;
-	unsigned long orig_jiffies;
-	int char_time;
-
-	if (serial_paranoia_check(info, tty->name, "cy_wait_until_sent"))
-		return;
-
-	if (info->xmit_fifo_size == 0)
-		return;		/* Just in case.... */
-
-	orig_jiffies = jiffies;
-	/*
-	 * Set the check interval to be 1/5 of the estimated time to
-	 * send a single character, and make it at least 1.  The check
-	 * interval should also be less than the timeout.
-	 *
-	 * Note: we have to use pretty tight timings here to satisfy
-	 * the NIST-PCTS.
-	 */
-	char_time = (info->timeout - HZ / 50) / info->xmit_fifo_size;
-	char_time = char_time / 5;
-	if (char_time <= 0)
-		char_time = 1;
-	if (timeout < 0)
-		timeout = 0;
-	if (timeout)
-		char_time = min(char_time, timeout);
-	/*
-	 * If the transmitter hasn't cleared in twice the approximate
-	 * amount of time to send the entire FIFO, it probably won't
-	 * ever clear.  This assumes the UART isn't doing flow
-	 * control, which is currently the case.  Hence, if it ever
-	 * takes longer than info->timeout, this is probably due to a
-	 * UART bug of some kind.  So, we clamp the timeout parameter at
-	 * 2*info->timeout.
-	 */
-	if (!timeout || timeout > 2 * info->timeout)
-		timeout = 2 * info->timeout;
-#ifdef CY_DEBUG_WAIT_UNTIL_SENT
-	printk(KERN_DEBUG "In cy_wait_until_sent(%d) check=%d, jiff=%lu...",
-		timeout, char_time, jiffies);
-#endif
-	card = info->card;
-	if (!cy_is_Z(card)) {
-		while (cyy_readb(info, CySRER) & CyTxRdy) {
-#ifdef CY_DEBUG_WAIT_UNTIL_SENT
-			printk(KERN_DEBUG "Not clean (jiff=%lu)...", jiffies);
-#endif
-			if (msleep_interruptible(jiffies_to_msecs(char_time)))
-				break;
-			if (timeout && time_after(jiffies, orig_jiffies +
-					timeout))
-				break;
-		}
-	}
-	/* Run one more char cycle */
-	msleep_interruptible(jiffies_to_msecs(char_time * 5));
-#ifdef CY_DEBUG_WAIT_UNTIL_SENT
-	printk(KERN_DEBUG "Clean (jiff=%lu)...done\n", jiffies);
-#endif
-}
-
-static void cy_flush_buffer(struct tty_struct *tty)
-{
-	struct cyclades_port *info = tty->driver_data;
-	struct cyclades_card *card;
-	int channel, retval;
-	unsigned long flags;
-
-#ifdef CY_DEBUG_IO
-	printk(KERN_DEBUG "cyc:cy_flush_buffer ttyC%d\n", info->line);
-#endif
-
-	if (serial_paranoia_check(info, tty->name, "cy_flush_buffer"))
-		return;
-
-	card = info->card;
-	channel = info->line - card->first_line;
-
-	spin_lock_irqsave(&card->card_lock, flags);
-	info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
-	spin_unlock_irqrestore(&card->card_lock, flags);
-
-	if (cy_is_Z(card)) {	/* If it is a Z card, flush the on-board
-					   buffers as well */
-		spin_lock_irqsave(&card->card_lock, flags);
-		retval = cyz_issue_cmd(card, channel, C_CM_FLUSH_TX, 0L);
-		if (retval != 0) {
-			printk(KERN_ERR "cyc: flush_buffer retval on ttyC%d "
-				"was %x\n", info->line, retval);
-		}
-		spin_unlock_irqrestore(&card->card_lock, flags);
-	}
-	tty_wakeup(tty);
-}				/* cy_flush_buffer */
-
-
-static void cy_do_close(struct tty_port *port)
-{
-	struct cyclades_port *info = container_of(port, struct cyclades_port,
-								port);
-	struct cyclades_card *card;
-	unsigned long flags;
-	int channel;
-
-	card = info->card;
-	channel = info->line - card->first_line;
-	spin_lock_irqsave(&card->card_lock, flags);
-
-	if (!cy_is_Z(card)) {
-		/* Stop accepting input */
-		cyy_writeb(info, CyCAR, channel & 0x03);
-		cyy_writeb(info, CySRER, cyy_readb(info, CySRER) & ~CyRxData);
-		if (info->port.flags & ASYNC_INITIALIZED) {
-			/* Waiting for on-board buffers to be empty before
-			   closing the port */
-			spin_unlock_irqrestore(&card->card_lock, flags);
-			cy_wait_until_sent(port->tty, info->timeout);
-			spin_lock_irqsave(&card->card_lock, flags);
-		}
-	} else {
-#ifdef Z_WAKE
-		/* Waiting for on-board buffers to be empty before closing
-		   the port */
-		struct CH_CTRL __iomem *ch_ctrl = info->u.cyz.ch_ctrl;
-		int retval;
-
-		if (readl(&ch_ctrl->flow_status) != C_FS_TXIDLE) {
-			retval = cyz_issue_cmd(card, channel, C_CM_IOCTLW, 0L);
-			if (retval != 0) {
-				printk(KERN_DEBUG "cyc:cy_close retval on "
-					"ttyC%d was %x\n", info->line, retval);
-			}
-			spin_unlock_irqrestore(&card->card_lock, flags);
-			wait_for_completion_interruptible(&info->shutdown_wait);
-			spin_lock_irqsave(&card->card_lock, flags);
-		}
-#endif
-	}
-	spin_unlock_irqrestore(&card->card_lock, flags);
-	cy_shutdown(info, port->tty);
-}
-
-/*
- * This routine is called when a particular tty device is closed.
- */
-static void cy_close(struct tty_struct *tty, struct file *filp)
-{
-	struct cyclades_port *info = tty->driver_data;
-	if (!info || serial_paranoia_check(info, tty->name, "cy_close"))
-		return;
-	tty_port_close(&info->port, tty, filp);
-}				/* cy_close */
-
-/* This routine gets called when tty_write has put something into
- * the write_queue.  The characters may come from user space or
- * kernel space.
- *
- * This routine will return the number of characters actually
- * accepted for writing.
- *
- * If the port is not already transmitting stuff, start it off by
- * enabling interrupts.  The interrupt service routine will then
- * ensure that the characters are sent.
- * If the port is already active, there is no need to kick it.
- *
- */
-static int cy_write(struct tty_struct *tty, const unsigned char *buf, int count)
-{
-	struct cyclades_port *info = tty->driver_data;
-	unsigned long flags;
-	int c, ret = 0;
-
-#ifdef CY_DEBUG_IO
-	printk(KERN_DEBUG "cyc:cy_write ttyC%d\n", info->line);
-#endif
-
-	if (serial_paranoia_check(info, tty->name, "cy_write"))
-		return 0;
-
-	if (!info->port.xmit_buf)
-		return 0;
-
-	spin_lock_irqsave(&info->card->card_lock, flags);
-	while (1) {
-		c = min(count, (int)(SERIAL_XMIT_SIZE - info->xmit_cnt - 1));
-		c = min(c, (int)(SERIAL_XMIT_SIZE - info->xmit_head));
-
-		if (c <= 0)
-			break;
-
-		memcpy(info->port.xmit_buf + info->xmit_head, buf, c);
-		info->xmit_head = (info->xmit_head + c) &
-			(SERIAL_XMIT_SIZE - 1);
-		info->xmit_cnt += c;
-		buf += c;
-		count -= c;
-		ret += c;
-	}
-	spin_unlock_irqrestore(&info->card->card_lock, flags);
-
-	info->idle_stats.xmit_bytes += ret;
-	info->idle_stats.xmit_idle = jiffies;
-
-	if (info->xmit_cnt && !tty->stopped && !tty->hw_stopped)
-		start_xmit(info);
-
-	return ret;
-}				/* cy_write */
-
-/*
- * This routine is called by the kernel to write a single
- * character to the tty device.  If the kernel uses this routine,
- * it must call the flush_chars() routine (if defined) when it is
- * done stuffing characters into the driver.  If there is no room
- * in the queue, the character is ignored.
- */
-static int cy_put_char(struct tty_struct *tty, unsigned char ch)
-{
-	struct cyclades_port *info = tty->driver_data;
-	unsigned long flags;
-
-#ifdef CY_DEBUG_IO
-	printk(KERN_DEBUG "cyc:cy_put_char ttyC%d\n", info->line);
-#endif
-
-	if (serial_paranoia_check(info, tty->name, "cy_put_char"))
-		return 0;
-
-	if (!info->port.xmit_buf)
-		return 0;
-
-	spin_lock_irqsave(&info->card->card_lock, flags);
-	if (info->xmit_cnt >= (int)(SERIAL_XMIT_SIZE - 1)) {
-		spin_unlock_irqrestore(&info->card->card_lock, flags);
-		return 0;
-	}
-
-	info->port.xmit_buf[info->xmit_head++] = ch;
-	info->xmit_head &= SERIAL_XMIT_SIZE - 1;
-	info->xmit_cnt++;
-	info->idle_stats.xmit_bytes++;
-	info->idle_stats.xmit_idle = jiffies;
-	spin_unlock_irqrestore(&info->card->card_lock, flags);
-	return 1;
-}				/* cy_put_char */
-
-/*
- * This routine is called by the kernel after it has written a
- * series of characters to the tty device using put_char().
- */
-static void cy_flush_chars(struct tty_struct *tty)
-{
-	struct cyclades_port *info = tty->driver_data;
-
-#ifdef CY_DEBUG_IO
-	printk(KERN_DEBUG "cyc:cy_flush_chars ttyC%d\n", info->line);
-#endif
-
-	if (serial_paranoia_check(info, tty->name, "cy_flush_chars"))
-		return;
-
-	if (info->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped ||
-			!info->port.xmit_buf)
-		return;
-
-	start_xmit(info);
-}				/* cy_flush_chars */
-
-/*
- * This routine returns the numbers of characters the tty driver
- * will accept for queuing to be written.  This number is subject
- * to change as output buffers get emptied, or if the output flow
- * control is activated.
- */
-static int cy_write_room(struct tty_struct *tty)
-{
-	struct cyclades_port *info = tty->driver_data;
-	int ret;
-
-#ifdef CY_DEBUG_IO
-	printk(KERN_DEBUG "cyc:cy_write_room ttyC%d\n", info->line);
-#endif
-
-	if (serial_paranoia_check(info, tty->name, "cy_write_room"))
-		return 0;
-	ret = SERIAL_XMIT_SIZE - info->xmit_cnt - 1;
-	if (ret < 0)
-		ret = 0;
-	return ret;
-}				/* cy_write_room */
-
-static int cy_chars_in_buffer(struct tty_struct *tty)
-{
-	struct cyclades_port *info = tty->driver_data;
-
-	if (serial_paranoia_check(info, tty->name, "cy_chars_in_buffer"))
-		return 0;
-
-#ifdef Z_EXT_CHARS_IN_BUFFER
-	if (!cy_is_Z(info->card)) {
-#endif				/* Z_EXT_CHARS_IN_BUFFER */
-#ifdef CY_DEBUG_IO
-		printk(KERN_DEBUG "cyc:cy_chars_in_buffer ttyC%d %d\n",
-			info->line, info->xmit_cnt);
-#endif
-		return info->xmit_cnt;
-#ifdef Z_EXT_CHARS_IN_BUFFER
-	} else {
-		struct BUF_CTRL __iomem *buf_ctrl = info->u.cyz.buf_ctrl;
-		int char_count;
-		__u32 tx_put, tx_get, tx_bufsize;
-
-		tx_get = readl(&buf_ctrl->tx_get);
-		tx_put = readl(&buf_ctrl->tx_put);
-		tx_bufsize = readl(&buf_ctrl->tx_bufsize);
-		if (tx_put >= tx_get)
-			char_count = tx_put - tx_get;
-		else
-			char_count = tx_put - tx_get + tx_bufsize;
-#ifdef CY_DEBUG_IO
-		printk(KERN_DEBUG "cyc:cy_chars_in_buffer ttyC%d %d\n",
-			info->line, info->xmit_cnt + char_count);
-#endif
-		return info->xmit_cnt + char_count;
-	}
-#endif				/* Z_EXT_CHARS_IN_BUFFER */
-}				/* cy_chars_in_buffer */
-
-/*
- * ------------------------------------------------------------
- * cy_ioctl() and friends
- * ------------------------------------------------------------
- */
-
-static void cyy_baud_calc(struct cyclades_port *info, __u32 baud)
-{
-	int co, co_val, bpr;
-	__u32 cy_clock = ((info->chip_rev >= CD1400_REV_J) ? 60000000 :
-			25000000);
-
-	if (baud == 0) {
-		info->tbpr = info->tco = info->rbpr = info->rco = 0;
-		return;
-	}
-
-	/* determine which prescaler to use */
-	for (co = 4, co_val = 2048; co; co--, co_val >>= 2) {
-		if (cy_clock / co_val / baud > 63)
-			break;
-	}
-
-	bpr = (cy_clock / co_val * 2 / baud + 1) / 2;
-	if (bpr > 255)
-		bpr = 255;
-
-	info->tbpr = info->rbpr = bpr;
-	info->tco = info->rco = co;
-}
-
-/*
- * This routine finds or computes the various line characteristics.
- * It used to be called config_setup
- */
-static void cy_set_line_char(struct cyclades_port *info, struct tty_struct *tty)
-{
-	struct cyclades_card *card;
-	unsigned long flags;
-	int channel;
-	unsigned cflag, iflag;
-	int baud, baud_rate = 0;
-	int i;
-
-	if (!tty->termios) /* XXX can this happen at all? */
-		return;
-
-	if (info->line == -1)
-		return;
-
-	cflag = tty->termios->c_cflag;
-	iflag = tty->termios->c_iflag;
-
-	/*
-	 * Set up the tty->alt_speed kludge
-	 */
-	if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
-		tty->alt_speed = 57600;
-	if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
-		tty->alt_speed = 115200;
-	if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
-		tty->alt_speed = 230400;
-	if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
-		tty->alt_speed = 460800;
-
-	card = info->card;
-	channel = info->line - card->first_line;
-
-	if (!cy_is_Z(card)) {
-		u32 cflags;
-
-		/* baud rate */
-		baud = tty_get_baud_rate(tty);
-		if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
-				ASYNC_SPD_CUST) {
-			if (info->custom_divisor)
-				baud_rate = info->baud / info->custom_divisor;
-			else
-				baud_rate = info->baud;
-		} else if (baud > CD1400_MAX_SPEED) {
-			baud = CD1400_MAX_SPEED;
-		}
-		/* find the baud index */
-		for (i = 0; i < 20; i++) {
-			if (baud == baud_table[i])
-				break;
-		}
-		if (i == 20)
-			i = 19;	/* CD1400_MAX_SPEED */
-
-		if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
-				ASYNC_SPD_CUST) {
-			cyy_baud_calc(info, baud_rate);
-		} else {
-			if (info->chip_rev >= CD1400_REV_J) {
-				/* It is a CD1400 rev. J or later */
-				info->tbpr = baud_bpr_60[i];	/* Tx BPR */
-				info->tco = baud_co_60[i];	/* Tx CO */
-				info->rbpr = baud_bpr_60[i];	/* Rx BPR */
-				info->rco = baud_co_60[i];	/* Rx CO */
-			} else {
-				info->tbpr = baud_bpr_25[i];	/* Tx BPR */
-				info->tco = baud_co_25[i];	/* Tx CO */
-				info->rbpr = baud_bpr_25[i];	/* Rx BPR */
-				info->rco = baud_co_25[i];	/* Rx CO */
-			}
-		}
-		if (baud_table[i] == 134) {
-			/* get it right for 134.5 baud */
-			info->timeout = (info->xmit_fifo_size * HZ * 30 / 269) +
-					2;
-		} else if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
-				ASYNC_SPD_CUST) {
-			info->timeout = (info->xmit_fifo_size * HZ * 15 /
-					baud_rate) + 2;
-		} else if (baud_table[i]) {
-			info->timeout = (info->xmit_fifo_size * HZ * 15 /
-					baud_table[i]) + 2;
-			/* this needs to be propagated into the card info */
-		} else {
-			info->timeout = 0;
-		}
-		/* By tradition (is it a standard?) a baud rate of zero
-		   implies the line should be/has been closed.  A bit
-		   later in this routine such a test is performed. */
-
-		/* byte size and parity */
-		info->cor5 = 0;
-		info->cor4 = 0;
-		/* receive threshold */
-		info->cor3 = (info->default_threshold ?
-				info->default_threshold : baud_cor3[i]);
-		info->cor2 = CyETC;
-		switch (cflag & CSIZE) {
-		case CS5:
-			info->cor1 = Cy_5_BITS;
-			break;
-		case CS6:
-			info->cor1 = Cy_6_BITS;
-			break;
-		case CS7:
-			info->cor1 = Cy_7_BITS;
-			break;
-		case CS8:
-			info->cor1 = Cy_8_BITS;
-			break;
-		}
-		if (cflag & CSTOPB)
-			info->cor1 |= Cy_2_STOP;
-
-		if (cflag & PARENB) {
-			if (cflag & PARODD)
-				info->cor1 |= CyPARITY_O;
-			else
-				info->cor1 |= CyPARITY_E;
-		} else
-			info->cor1 |= CyPARITY_NONE;
-
-		/* CTS flow control flag */
-		if (cflag & CRTSCTS) {
-			info->port.flags |= ASYNC_CTS_FLOW;
-			info->cor2 |= CyCtsAE;
-		} else {
-			info->port.flags &= ~ASYNC_CTS_FLOW;
-			info->cor2 &= ~CyCtsAE;
-		}
-		if (cflag & CLOCAL)
-			info->port.flags &= ~ASYNC_CHECK_CD;
-		else
-			info->port.flags |= ASYNC_CHECK_CD;
-
-	 /***********************************************
-	    The hardware option, CyRtsAO, presents RTS when
-	    the chip has characters to send.  Since most modems
-	    use RTS as reverse (inbound) flow control, this
-	    option is not used.  If inbound flow control is
-	    necessary, DTR can be programmed to provide the
-	    appropriate signals for use with a non-standard
-	    cable.  Contact Marcio Saito for details.
-	 ***********************************************/
-
-		channel &= 0x03;
-
-		spin_lock_irqsave(&card->card_lock, flags);
-		cyy_writeb(info, CyCAR, channel);
-
-		/* tx and rx baud rate */
-
-		cyy_writeb(info, CyTCOR, info->tco);
-		cyy_writeb(info, CyTBPR, info->tbpr);
-		cyy_writeb(info, CyRCOR, info->rco);
-		cyy_writeb(info, CyRBPR, info->rbpr);
-
-		/* set line characteristics  according configuration */
-
-		cyy_writeb(info, CySCHR1, START_CHAR(tty));
-		cyy_writeb(info, CySCHR2, STOP_CHAR(tty));
-		cyy_writeb(info, CyCOR1, info->cor1);
-		cyy_writeb(info, CyCOR2, info->cor2);
-		cyy_writeb(info, CyCOR3, info->cor3);
-		cyy_writeb(info, CyCOR4, info->cor4);
-		cyy_writeb(info, CyCOR5, info->cor5);
-
-		cyy_issue_cmd(info, CyCOR_CHANGE | CyCOR1ch | CyCOR2ch |
-				CyCOR3ch);
-
-		/* !!! Is this needed? */
-		cyy_writeb(info, CyCAR, channel);
-		cyy_writeb(info, CyRTPR,
-			(info->default_timeout ? info->default_timeout : 0x02));
-		/* 10ms rx timeout */
-
-		cflags = CyCTS;
-		if (!C_CLOCAL(tty))
-			cflags |= CyDSR | CyRI | CyDCD;
-		/* without modem intr */
-		cyy_writeb(info, CySRER, cyy_readb(info, CySRER) | CyMdmCh);
-		/* act on 1->0 modem transitions */
-		if ((cflag & CRTSCTS) && info->rflow)
-			cyy_writeb(info, CyMCOR1, cflags | rflow_thr[i]);
-		else
-			cyy_writeb(info, CyMCOR1, cflags);
-		/* act on 0->1 modem transitions */
-		cyy_writeb(info, CyMCOR2, cflags);
-
-		if (i == 0)	/* baud rate is zero, turn off line */
-			cyy_change_rts_dtr(info, 0, TIOCM_DTR);
-		else
-			cyy_change_rts_dtr(info, TIOCM_DTR, 0);
-
-		clear_bit(TTY_IO_ERROR, &tty->flags);
-		spin_unlock_irqrestore(&card->card_lock, flags);
-
-	} else {
-		struct CH_CTRL __iomem *ch_ctrl = info->u.cyz.ch_ctrl;
-		__u32 sw_flow;
-		int retval;
-
-		if (!cyz_is_loaded(card))
-			return;
-
-		/* baud rate */
-		baud = tty_get_baud_rate(tty);
-		if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
-				ASYNC_SPD_CUST) {
-			if (info->custom_divisor)
-				baud_rate = info->baud / info->custom_divisor;
-			else
-				baud_rate = info->baud;
-		} else if (baud > CYZ_MAX_SPEED) {
-			baud = CYZ_MAX_SPEED;
-		}
-		cy_writel(&ch_ctrl->comm_baud, baud);
-
-		if (baud == 134) {
-			/* get it right for 134.5 baud */
-			info->timeout = (info->xmit_fifo_size * HZ * 30 / 269) +
-					2;
-		} else if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
-				ASYNC_SPD_CUST) {
-			info->timeout = (info->xmit_fifo_size * HZ * 15 /
-					baud_rate) + 2;
-		} else if (baud) {
-			info->timeout = (info->xmit_fifo_size * HZ * 15 /
-					baud) + 2;
-			/* this needs to be propagated into the card info */
-		} else {
-			info->timeout = 0;
-		}
-
-		/* byte size and parity */
-		switch (cflag & CSIZE) {
-		case CS5:
-			cy_writel(&ch_ctrl->comm_data_l, C_DL_CS5);
-			break;
-		case CS6:
-			cy_writel(&ch_ctrl->comm_data_l, C_DL_CS6);
-			break;
-		case CS7:
-			cy_writel(&ch_ctrl->comm_data_l, C_DL_CS7);
-			break;
-		case CS8:
-			cy_writel(&ch_ctrl->comm_data_l, C_DL_CS8);
-			break;
-		}
-		if (cflag & CSTOPB) {
-			cy_writel(&ch_ctrl->comm_data_l,
-				  readl(&ch_ctrl->comm_data_l) | C_DL_2STOP);
-		} else {
-			cy_writel(&ch_ctrl->comm_data_l,
-				  readl(&ch_ctrl->comm_data_l) | C_DL_1STOP);
-		}
-		if (cflag & PARENB) {
-			if (cflag & PARODD)
-				cy_writel(&ch_ctrl->comm_parity, C_PR_ODD);
-			else
-				cy_writel(&ch_ctrl->comm_parity, C_PR_EVEN);
-		} else
-			cy_writel(&ch_ctrl->comm_parity, C_PR_NONE);
-
-		/* CTS flow control flag */
-		if (cflag & CRTSCTS) {
-			cy_writel(&ch_ctrl->hw_flow,
-				readl(&ch_ctrl->hw_flow) | C_RS_CTS | C_RS_RTS);
-		} else {
-			cy_writel(&ch_ctrl->hw_flow, readl(&ch_ctrl->hw_flow) &
-					~(C_RS_CTS | C_RS_RTS));
-		}
-		/* As the HW flow control is done in firmware, the driver
-		   doesn't need to care about it */
-		info->port.flags &= ~ASYNC_CTS_FLOW;
-
-		/* XON/XOFF/XANY flow control flags */
-		sw_flow = 0;
-		if (iflag & IXON) {
-			sw_flow |= C_FL_OXX;
-			if (iflag & IXANY)
-				sw_flow |= C_FL_OIXANY;
-		}
-		cy_writel(&ch_ctrl->sw_flow, sw_flow);
-
-		retval = cyz_issue_cmd(card, channel, C_CM_IOCTL, 0L);
-		if (retval != 0) {
-			printk(KERN_ERR "cyc:set_line_char retval on ttyC%d "
-				"was %x\n", info->line, retval);
-		}
-
-		/* CD sensitivity */
-		if (cflag & CLOCAL)
-			info->port.flags &= ~ASYNC_CHECK_CD;
-		else
-			info->port.flags |= ASYNC_CHECK_CD;
-
-		if (baud == 0) {	/* baud rate is zero, turn off line */
-			cy_writel(&ch_ctrl->rs_control,
-				  readl(&ch_ctrl->rs_control) & ~C_RS_DTR);
-#ifdef CY_DEBUG_DTR
-			printk(KERN_DEBUG "cyc:set_line_char dropping Z DTR\n");
-#endif
-		} else {
-			cy_writel(&ch_ctrl->rs_control,
-				  readl(&ch_ctrl->rs_control) | C_RS_DTR);
-#ifdef CY_DEBUG_DTR
-			printk(KERN_DEBUG "cyc:set_line_char raising Z DTR\n");
-#endif
-		}
-
-		retval = cyz_issue_cmd(card, channel, C_CM_IOCTLM, 0L);
-		if (retval != 0) {
-			printk(KERN_ERR "cyc:set_line_char(2) retval on ttyC%d "
-				"was %x\n", info->line, retval);
-		}
-
-		clear_bit(TTY_IO_ERROR, &tty->flags);
-	}
-}				/* set_line_char */
-
-static int cy_get_serial_info(struct cyclades_port *info,
-		struct serial_struct __user *retinfo)
-{
-	struct cyclades_card *cinfo = info->card;
-	struct serial_struct tmp = {
-		.type = info->type,
-		.line = info->line,
-		.port = (info->card - cy_card) * 0x100 + info->line -
-			cinfo->first_line,
-		.irq = cinfo->irq,
-		.flags = info->port.flags,
-		.close_delay = info->port.close_delay,
-		.closing_wait = info->port.closing_wait,
-		.baud_base = info->baud,
-		.custom_divisor = info->custom_divisor,
-		.hub6 = 0,		/*!!! */
-	};
-	return copy_to_user(retinfo, &tmp, sizeof(*retinfo)) ? -EFAULT : 0;
-}
-
-static int
-cy_set_serial_info(struct cyclades_port *info, struct tty_struct *tty,
-		struct serial_struct __user *new_info)
-{
-	struct serial_struct new_serial;
-	int ret;
-
-	if (copy_from_user(&new_serial, new_info, sizeof(new_serial)))
-		return -EFAULT;
-
-	mutex_lock(&info->port.mutex);
-	if (!capable(CAP_SYS_ADMIN)) {
-		if (new_serial.close_delay != info->port.close_delay ||
-				new_serial.baud_base != info->baud ||
-				(new_serial.flags & ASYNC_FLAGS &
-					~ASYNC_USR_MASK) !=
-				(info->port.flags & ASYNC_FLAGS & ~ASYNC_USR_MASK))
-		{
-			mutex_unlock(&info->port.mutex);
-			return -EPERM;
-		}
-		info->port.flags = (info->port.flags & ~ASYNC_USR_MASK) |
-				(new_serial.flags & ASYNC_USR_MASK);
-		info->baud = new_serial.baud_base;
-		info->custom_divisor = new_serial.custom_divisor;
-		goto check_and_exit;
-	}
-
-	/*
-	 * OK, past this point, all the error checking has been done.
-	 * At this point, we start making changes.....
-	 */
-
-	info->baud = new_serial.baud_base;
-	info->custom_divisor = new_serial.custom_divisor;
-	info->port.flags = (info->port.flags & ~ASYNC_FLAGS) |
-			(new_serial.flags & ASYNC_FLAGS);
-	info->port.close_delay = new_serial.close_delay * HZ / 100;
-	info->port.closing_wait = new_serial.closing_wait * HZ / 100;
-
-check_and_exit:
-	if (info->port.flags & ASYNC_INITIALIZED) {
-		cy_set_line_char(info, tty);
-		ret = 0;
-	} else {
-		ret = cy_startup(info, tty);
-	}
-	mutex_unlock(&info->port.mutex);
-	return ret;
-}				/* set_serial_info */
-
-/*
- * get_lsr_info - get line status register info
- *
- * Purpose: Let user call ioctl() to get info when the UART physically
- *	    is emptied.  On bus types like RS485, the transmitter must
- *	    release the bus after transmitting. This must be done when
- *	    the transmit shift register is empty, not be done when the
- *	    transmit holding register is empty.  This functionality
- *	    allows an RS485 driver to be written in user space.
- */
-static int get_lsr_info(struct cyclades_port *info, unsigned int __user *value)
-{
-	struct cyclades_card *card = info->card;
-	unsigned int result;
-	unsigned long flags;
-	u8 status;
-
-	if (!cy_is_Z(card)) {
-		spin_lock_irqsave(&card->card_lock, flags);
-		status = cyy_readb(info, CySRER) & (CyTxRdy | CyTxMpty);
-		spin_unlock_irqrestore(&card->card_lock, flags);
-		result = (status ? 0 : TIOCSER_TEMT);
-	} else {
-		/* Not supported yet */
-		return -EINVAL;
-	}
-	return put_user(result, (unsigned long __user *)value);
-}
-
-static int cy_tiocmget(struct tty_struct *tty)
-{
-	struct cyclades_port *info = tty->driver_data;
-	struct cyclades_card *card;
-	int result;
-
-	if (serial_paranoia_check(info, tty->name, __func__))
-		return -ENODEV;
-
-	card = info->card;
-
-	if (!cy_is_Z(card)) {
-		unsigned long flags;
-		int channel = info->line - card->first_line;
-		u8 status;
-
-		spin_lock_irqsave(&card->card_lock, flags);
-		cyy_writeb(info, CyCAR, channel & 0x03);
-		status = cyy_readb(info, CyMSVR1);
-		status |= cyy_readb(info, CyMSVR2);
-		spin_unlock_irqrestore(&card->card_lock, flags);
-
-		if (info->rtsdtr_inv) {
-			result = ((status & CyRTS) ? TIOCM_DTR : 0) |
-				((status & CyDTR) ? TIOCM_RTS : 0);
-		} else {
-			result = ((status & CyRTS) ? TIOCM_RTS : 0) |
-				((status & CyDTR) ? TIOCM_DTR : 0);
-		}
-		result |= ((status & CyDCD) ? TIOCM_CAR : 0) |
-			((status & CyRI) ? TIOCM_RNG : 0) |
-			((status & CyDSR) ? TIOCM_DSR : 0) |
-			((status & CyCTS) ? TIOCM_CTS : 0);
-	} else {
-		u32 lstatus;
-
-		if (!cyz_is_loaded(card)) {
-			result = -ENODEV;
-			goto end;
-		}
-
-		lstatus = readl(&info->u.cyz.ch_ctrl->rs_status);
-		result = ((lstatus & C_RS_RTS) ? TIOCM_RTS : 0) |
-			((lstatus & C_RS_DTR) ? TIOCM_DTR : 0) |
-			((lstatus & C_RS_DCD) ? TIOCM_CAR : 0) |
-			((lstatus & C_RS_RI) ? TIOCM_RNG : 0) |
-			((lstatus & C_RS_DSR) ? TIOCM_DSR : 0) |
-			((lstatus & C_RS_CTS) ? TIOCM_CTS : 0);
-	}
-end:
-	return result;
-}				/* cy_tiomget */
-
-static int
-cy_tiocmset(struct tty_struct *tty,
-		unsigned int set, unsigned int clear)
-{
-	struct cyclades_port *info = tty->driver_data;
-	struct cyclades_card *card;
-	unsigned long flags;
-
-	if (serial_paranoia_check(info, tty->name, __func__))
-		return -ENODEV;
-
-	card = info->card;
-	if (!cy_is_Z(card)) {
-		spin_lock_irqsave(&card->card_lock, flags);
-		cyy_change_rts_dtr(info, set, clear);
-		spin_unlock_irqrestore(&card->card_lock, flags);
-	} else {
-		struct CH_CTRL __iomem *ch_ctrl = info->u.cyz.ch_ctrl;
-		int retval, channel = info->line - card->first_line;
-		u32 rs;
-
-		if (!cyz_is_loaded(card))
-			return -ENODEV;
-
-		spin_lock_irqsave(&card->card_lock, flags);
-		rs = readl(&ch_ctrl->rs_control);
-		if (set & TIOCM_RTS)
-			rs |= C_RS_RTS;
-		if (clear & TIOCM_RTS)
-			rs &= ~C_RS_RTS;
-		if (set & TIOCM_DTR) {
-			rs |= C_RS_DTR;
-#ifdef CY_DEBUG_DTR
-			printk(KERN_DEBUG "cyc:set_modem_info raising Z DTR\n");
-#endif
-		}
-		if (clear & TIOCM_DTR) {
-			rs &= ~C_RS_DTR;
-#ifdef CY_DEBUG_DTR
-			printk(KERN_DEBUG "cyc:set_modem_info clearing "
-				"Z DTR\n");
-#endif
-		}
-		cy_writel(&ch_ctrl->rs_control, rs);
-		retval = cyz_issue_cmd(card, channel, C_CM_IOCTLM, 0L);
-		spin_unlock_irqrestore(&card->card_lock, flags);
-		if (retval != 0) {
-			printk(KERN_ERR "cyc:set_modem_info retval on ttyC%d "
-				"was %x\n", info->line, retval);
-		}
-	}
-	return 0;
-}
-
-/*
- * cy_break() --- routine which turns the break handling on or off
- */
-static int cy_break(struct tty_struct *tty, int break_state)
-{
-	struct cyclades_port *info = tty->driver_data;
-	struct cyclades_card *card;
-	unsigned long flags;
-	int retval = 0;
-
-	if (serial_paranoia_check(info, tty->name, "cy_break"))
-		return -EINVAL;
-
-	card = info->card;
-
-	spin_lock_irqsave(&card->card_lock, flags);
-	if (!cy_is_Z(card)) {
-		/* Let the transmit ISR take care of this (since it
-		   requires stuffing characters into the output stream).
-		 */
-		if (break_state == -1) {
-			if (!info->breakon) {
-				info->breakon = 1;
-				if (!info->xmit_cnt) {
-					spin_unlock_irqrestore(&card->card_lock, flags);
-					start_xmit(info);
-					spin_lock_irqsave(&card->card_lock, flags);
-				}
-			}
-		} else {
-			if (!info->breakoff) {
-				info->breakoff = 1;
-				if (!info->xmit_cnt) {
-					spin_unlock_irqrestore(&card->card_lock, flags);
-					start_xmit(info);
-					spin_lock_irqsave(&card->card_lock, flags);
-				}
-			}
-		}
-	} else {
-		if (break_state == -1) {
-			retval = cyz_issue_cmd(card,
-				info->line - card->first_line,
-				C_CM_SET_BREAK, 0L);
-			if (retval != 0) {
-				printk(KERN_ERR "cyc:cy_break (set) retval on "
-					"ttyC%d was %x\n", info->line, retval);
-			}
-		} else {
-			retval = cyz_issue_cmd(card,
-				info->line - card->first_line,
-				C_CM_CLR_BREAK, 0L);
-			if (retval != 0) {
-				printk(KERN_DEBUG "cyc:cy_break (clr) retval "
-					"on ttyC%d was %x\n", info->line,
-					retval);
-			}
-		}
-	}
-	spin_unlock_irqrestore(&card->card_lock, flags);
-	return retval;
-}				/* cy_break */
-
-static int set_threshold(struct cyclades_port *info, unsigned long value)
-{
-	struct cyclades_card *card = info->card;
-	unsigned long flags;
-
-	if (!cy_is_Z(card)) {
-		info->cor3 &= ~CyREC_FIFO;
-		info->cor3 |= value & CyREC_FIFO;
-
-		spin_lock_irqsave(&card->card_lock, flags);
-		cyy_writeb(info, CyCOR3, info->cor3);
-		cyy_issue_cmd(info, CyCOR_CHANGE | CyCOR3ch);
-		spin_unlock_irqrestore(&card->card_lock, flags);
-	}
-	return 0;
-}				/* set_threshold */
-
-static int get_threshold(struct cyclades_port *info,
-						unsigned long __user *value)
-{
-	struct cyclades_card *card = info->card;
-
-	if (!cy_is_Z(card)) {
-		u8 tmp = cyy_readb(info, CyCOR3) & CyREC_FIFO;
-		return put_user(tmp, value);
-	}
-	return 0;
-}				/* get_threshold */
-
-static int set_timeout(struct cyclades_port *info, unsigned long value)
-{
-	struct cyclades_card *card = info->card;
-	unsigned long flags;
-
-	if (!cy_is_Z(card)) {
-		spin_lock_irqsave(&card->card_lock, flags);
-		cyy_writeb(info, CyRTPR, value & 0xff);
-		spin_unlock_irqrestore(&card->card_lock, flags);
-	}
-	return 0;
-}				/* set_timeout */
-
-static int get_timeout(struct cyclades_port *info,
-						unsigned long __user *value)
-{
-	struct cyclades_card *card = info->card;
-
-	if (!cy_is_Z(card)) {
-		u8 tmp = cyy_readb(info, CyRTPR);
-		return put_user(tmp, value);
-	}
-	return 0;
-}				/* get_timeout */
-
-static int cy_cflags_changed(struct cyclades_port *info, unsigned long arg,
-		struct cyclades_icount *cprev)
-{
-	struct cyclades_icount cnow;
-	unsigned long flags;
-	int ret;
-
-	spin_lock_irqsave(&info->card->card_lock, flags);
-	cnow = info->icount;	/* atomic copy */
-	spin_unlock_irqrestore(&info->card->card_lock, flags);
-
-	ret =	((arg & TIOCM_RNG) && (cnow.rng != cprev->rng)) ||
-		((arg & TIOCM_DSR) && (cnow.dsr != cprev->dsr)) ||
-		((arg & TIOCM_CD)  && (cnow.dcd != cprev->dcd)) ||
-		((arg & TIOCM_CTS) && (cnow.cts != cprev->cts));
-
-	*cprev = cnow;
-
-	return ret;
-}
-
-/*
- * This routine allows the tty driver to implement device-
- * specific ioctl's.  If the ioctl number passed in cmd is
- * not recognized by the driver, it should return ENOIOCTLCMD.
- */
-static int
-cy_ioctl(struct tty_struct *tty,
-	 unsigned int cmd, unsigned long arg)
-{
-	struct cyclades_port *info = tty->driver_data;
-	struct cyclades_icount cnow;	/* kernel counter temps */
-	int ret_val = 0;
-	unsigned long flags;
-	void __user *argp = (void __user *)arg;
-
-	if (serial_paranoia_check(info, tty->name, "cy_ioctl"))
-		return -ENODEV;
-
-#ifdef CY_DEBUG_OTHER
-	printk(KERN_DEBUG "cyc:cy_ioctl ttyC%d, cmd = %x arg = %lx\n",
-		info->line, cmd, arg);
-#endif
-
-	switch (cmd) {
-	case CYGETMON:
-		if (copy_to_user(argp, &info->mon, sizeof(info->mon))) {
-			ret_val = -EFAULT;
-			break;
-		}
-		memset(&info->mon, 0, sizeof(info->mon));
-		break;
-	case CYGETTHRESH:
-		ret_val = get_threshold(info, argp);
-		break;
-	case CYSETTHRESH:
-		ret_val = set_threshold(info, arg);
-		break;
-	case CYGETDEFTHRESH:
-		ret_val = put_user(info->default_threshold,
-				(unsigned long __user *)argp);
-		break;
-	case CYSETDEFTHRESH:
-		info->default_threshold = arg & 0x0f;
-		break;
-	case CYGETTIMEOUT:
-		ret_val = get_timeout(info, argp);
-		break;
-	case CYSETTIMEOUT:
-		ret_val = set_timeout(info, arg);
-		break;
-	case CYGETDEFTIMEOUT:
-		ret_val = put_user(info->default_timeout,
-				(unsigned long __user *)argp);
-		break;
-	case CYSETDEFTIMEOUT:
-		info->default_timeout = arg & 0xff;
-		break;
-	case CYSETRFLOW:
-		info->rflow = (int)arg;
-		break;
-	case CYGETRFLOW:
-		ret_val = info->rflow;
-		break;
-	case CYSETRTSDTR_INV:
-		info->rtsdtr_inv = (int)arg;
-		break;
-	case CYGETRTSDTR_INV:
-		ret_val = info->rtsdtr_inv;
-		break;
-	case CYGETCD1400VER:
-		ret_val = info->chip_rev;
-		break;
-#ifndef CONFIG_CYZ_INTR
-	case CYZSETPOLLCYCLE:
-		cyz_polling_cycle = (arg * HZ) / 1000;
-		break;
-	case CYZGETPOLLCYCLE:
-		ret_val = (cyz_polling_cycle * 1000) / HZ;
-		break;
-#endif				/* CONFIG_CYZ_INTR */
-	case CYSETWAIT:
-		info->port.closing_wait = (unsigned short)arg * HZ / 100;
-		break;
-	case CYGETWAIT:
-		ret_val = info->port.closing_wait / (HZ / 100);
-		break;
-	case TIOCGSERIAL:
-		ret_val = cy_get_serial_info(info, argp);
-		break;
-	case TIOCSSERIAL:
-		ret_val = cy_set_serial_info(info, tty, argp);
-		break;
-	case TIOCSERGETLSR:	/* Get line status register */
-		ret_val = get_lsr_info(info, argp);
-		break;
-		/*
-		 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
-		 * - mask passed in arg for lines of interest
-		 *   (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
-		 * Caller should use TIOCGICOUNT to see which one it was
-		 */
-	case TIOCMIWAIT:
-		spin_lock_irqsave(&info->card->card_lock, flags);
-		/* note the counters on entry */
-		cnow = info->icount;
-		spin_unlock_irqrestore(&info->card->card_lock, flags);
-		ret_val = wait_event_interruptible(info->port.delta_msr_wait,
-				cy_cflags_changed(info, arg, &cnow));
-		break;
-
-		/*
-		 * Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
-		 * Return: write counters to the user passed counter struct
-		 * NB: both 1->0 and 0->1 transitions are counted except for
-		 *     RI where only 0->1 is counted.
-		 */
-	default:
-		ret_val = -ENOIOCTLCMD;
-	}
-
-#ifdef CY_DEBUG_OTHER
-	printk(KERN_DEBUG "cyc:cy_ioctl done\n");
-#endif
-	return ret_val;
-}				/* cy_ioctl */
-
-static int cy_get_icount(struct tty_struct *tty,
-				struct serial_icounter_struct *sic)
-{
-	struct cyclades_port *info = tty->driver_data;
-	struct cyclades_icount cnow;	/* Used to snapshot */
-	unsigned long flags;
-
-	spin_lock_irqsave(&info->card->card_lock, flags);
-	cnow = info->icount;
-	spin_unlock_irqrestore(&info->card->card_lock, flags);
-
-	sic->cts = cnow.cts;
-	sic->dsr = cnow.dsr;
-	sic->rng = cnow.rng;
-	sic->dcd = cnow.dcd;
-	sic->rx = cnow.rx;
-	sic->tx = cnow.tx;
-	sic->frame = cnow.frame;
-	sic->overrun = cnow.overrun;
-	sic->parity = cnow.parity;
-	sic->brk = cnow.brk;
-	sic->buf_overrun = cnow.buf_overrun;
-	return 0;
-}
-
-/*
- * This routine allows the tty driver to be notified when
- * device's termios settings have changed.  Note that a
- * well-designed tty driver should be prepared to accept the case
- * where old == NULL, and try to do something rational.
- */
-static void cy_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
-{
-	struct cyclades_port *info = tty->driver_data;
-
-#ifdef CY_DEBUG_OTHER
-	printk(KERN_DEBUG "cyc:cy_set_termios ttyC%d\n", info->line);
-#endif
-
-	cy_set_line_char(info, tty);
-
-	if ((old_termios->c_cflag & CRTSCTS) &&
-			!(tty->termios->c_cflag & CRTSCTS)) {
-		tty->hw_stopped = 0;
-		cy_start(tty);
-	}
-#if 0
-	/*
-	 * No need to wake up processes in open wait, since they
-	 * sample the CLOCAL flag once, and don't recheck it.
-	 * XXX  It's not clear whether the current behavior is correct
-	 * or not.  Hence, this may change.....
-	 */
-	if (!(old_termios->c_cflag & CLOCAL) &&
-	    (tty->termios->c_cflag & CLOCAL))
-		wake_up_interruptible(&info->port.open_wait);
-#endif
-}				/* cy_set_termios */
-
-/* This function is used to send a high-priority XON/XOFF character to
-   the device.
-*/
-static void cy_send_xchar(struct tty_struct *tty, char ch)
-{
-	struct cyclades_port *info = tty->driver_data;
-	struct cyclades_card *card;
-	int channel;
-
-	if (serial_paranoia_check(info, tty->name, "cy_send_xchar"))
-		return;
-
-	info->x_char = ch;
-
-	if (ch)
-		cy_start(tty);
-
-	card = info->card;
-	channel = info->line - card->first_line;
-
-	if (cy_is_Z(card)) {
-		if (ch == STOP_CHAR(tty))
-			cyz_issue_cmd(card, channel, C_CM_SENDXOFF, 0L);
-		else if (ch == START_CHAR(tty))
-			cyz_issue_cmd(card, channel, C_CM_SENDXON, 0L);
-	}
-}
-
-/* This routine is called by the upper-layer tty layer to signal
-   that incoming characters should be throttled because the input
-   buffers are close to full.
- */
-static void cy_throttle(struct tty_struct *tty)
-{
-	struct cyclades_port *info = tty->driver_data;
-	struct cyclades_card *card;
-	unsigned long flags;
-
-#ifdef CY_DEBUG_THROTTLE
-	char buf[64];
-
-	printk(KERN_DEBUG "cyc:throttle %s: %ld...ttyC%d\n", tty_name(tty, buf),
-			tty->ldisc.chars_in_buffer(tty), info->line);
-#endif
-
-	if (serial_paranoia_check(info, tty->name, "cy_throttle"))
-		return;
-
-	card = info->card;
-
-	if (I_IXOFF(tty)) {
-		if (!cy_is_Z(card))
-			cy_send_xchar(tty, STOP_CHAR(tty));
-		else
-			info->throttle = 1;
-	}
-
-	if (tty->termios->c_cflag & CRTSCTS) {
-		if (!cy_is_Z(card)) {
-			spin_lock_irqsave(&card->card_lock, flags);
-			cyy_change_rts_dtr(info, 0, TIOCM_RTS);
-			spin_unlock_irqrestore(&card->card_lock, flags);
-		} else {
-			info->throttle = 1;
-		}
-	}
-}				/* cy_throttle */
-
-/*
- * This routine notifies the tty driver that it should signal
- * that characters can now be sent to the tty without fear of
- * overrunning the input buffers of the line disciplines.
- */
-static void cy_unthrottle(struct tty_struct *tty)
-{
-	struct cyclades_port *info = tty->driver_data;
-	struct cyclades_card *card;
-	unsigned long flags;
-
-#ifdef CY_DEBUG_THROTTLE
-	char buf[64];
-
-	printk(KERN_DEBUG "cyc:unthrottle %s: %ld...ttyC%d\n",
-		tty_name(tty, buf), tty_chars_in_buffer(tty), info->line);
-#endif
-
-	if (serial_paranoia_check(info, tty->name, "cy_unthrottle"))
-		return;
-
-	if (I_IXOFF(tty)) {
-		if (info->x_char)
-			info->x_char = 0;
-		else
-			cy_send_xchar(tty, START_CHAR(tty));
-	}
-
-	if (tty->termios->c_cflag & CRTSCTS) {
-		card = info->card;
-		if (!cy_is_Z(card)) {
-			spin_lock_irqsave(&card->card_lock, flags);
-			cyy_change_rts_dtr(info, TIOCM_RTS, 0);
-			spin_unlock_irqrestore(&card->card_lock, flags);
-		} else {
-			info->throttle = 0;
-		}
-	}
-}				/* cy_unthrottle */
-
-/* cy_start and cy_stop provide software output flow control as a
-   function of XON/XOFF, software CTS, and other such stuff.
-*/
-static void cy_stop(struct tty_struct *tty)
-{
-	struct cyclades_card *cinfo;
-	struct cyclades_port *info = tty->driver_data;
-	int channel;
-	unsigned long flags;
-
-#ifdef CY_DEBUG_OTHER
-	printk(KERN_DEBUG "cyc:cy_stop ttyC%d\n", info->line);
-#endif
-
-	if (serial_paranoia_check(info, tty->name, "cy_stop"))
-		return;
-
-	cinfo = info->card;
-	channel = info->line - cinfo->first_line;
-	if (!cy_is_Z(cinfo)) {
-		spin_lock_irqsave(&cinfo->card_lock, flags);
-		cyy_writeb(info, CyCAR, channel & 0x03);
-		cyy_writeb(info, CySRER, cyy_readb(info, CySRER) & ~CyTxRdy);
-		spin_unlock_irqrestore(&cinfo->card_lock, flags);
-	}
-}				/* cy_stop */
-
-static void cy_start(struct tty_struct *tty)
-{
-	struct cyclades_card *cinfo;
-	struct cyclades_port *info = tty->driver_data;
-	int channel;
-	unsigned long flags;
-
-#ifdef CY_DEBUG_OTHER
-	printk(KERN_DEBUG "cyc:cy_start ttyC%d\n", info->line);
-#endif
-
-	if (serial_paranoia_check(info, tty->name, "cy_start"))
-		return;
-
-	cinfo = info->card;
-	channel = info->line - cinfo->first_line;
-	if (!cy_is_Z(cinfo)) {
-		spin_lock_irqsave(&cinfo->card_lock, flags);
-		cyy_writeb(info, CyCAR, channel & 0x03);
-		cyy_writeb(info, CySRER, cyy_readb(info, CySRER) | CyTxRdy);
-		spin_unlock_irqrestore(&cinfo->card_lock, flags);
-	}
-}				/* cy_start */
-
-/*
- * cy_hangup() --- called by tty_hangup() when a hangup is signaled.
- */
-static void cy_hangup(struct tty_struct *tty)
-{
-	struct cyclades_port *info = tty->driver_data;
-
-#ifdef CY_DEBUG_OTHER
-	printk(KERN_DEBUG "cyc:cy_hangup ttyC%d\n", info->line);
-#endif
-
-	if (serial_paranoia_check(info, tty->name, "cy_hangup"))
-		return;
-
-	cy_flush_buffer(tty);
-	cy_shutdown(info, tty);
-	tty_port_hangup(&info->port);
-}				/* cy_hangup */
-
-static int cyy_carrier_raised(struct tty_port *port)
-{
-	struct cyclades_port *info = container_of(port, struct cyclades_port,
-			port);
-	struct cyclades_card *cinfo = info->card;
-	unsigned long flags;
-	int channel = info->line - cinfo->first_line;
-	u32 cd;
-
-	spin_lock_irqsave(&cinfo->card_lock, flags);
-	cyy_writeb(info, CyCAR, channel & 0x03);
-	cd = cyy_readb(info, CyMSVR1) & CyDCD;
-	spin_unlock_irqrestore(&cinfo->card_lock, flags);
-
-	return cd;
-}
-
-static void cyy_dtr_rts(struct tty_port *port, int raise)
-{
-	struct cyclades_port *info = container_of(port, struct cyclades_port,
-			port);
-	struct cyclades_card *cinfo = info->card;
-	unsigned long flags;
-
-	spin_lock_irqsave(&cinfo->card_lock, flags);
-	cyy_change_rts_dtr(info, raise ? TIOCM_RTS | TIOCM_DTR : 0,
-			raise ? 0 : TIOCM_RTS | TIOCM_DTR);
-	spin_unlock_irqrestore(&cinfo->card_lock, flags);
-}
-
-static int cyz_carrier_raised(struct tty_port *port)
-{
-	struct cyclades_port *info = container_of(port, struct cyclades_port,
-			port);
-
-	return readl(&info->u.cyz.ch_ctrl->rs_status) & C_RS_DCD;
-}
-
-static void cyz_dtr_rts(struct tty_port *port, int raise)
-{
-	struct cyclades_port *info = container_of(port, struct cyclades_port,
-			port);
-	struct cyclades_card *cinfo = info->card;
-	struct CH_CTRL __iomem *ch_ctrl = info->u.cyz.ch_ctrl;
-	int ret, channel = info->line - cinfo->first_line;
-	u32 rs;
-
-	rs = readl(&ch_ctrl->rs_control);
-	if (raise)
-		rs |= C_RS_RTS | C_RS_DTR;
-	else
-		rs &= ~(C_RS_RTS | C_RS_DTR);
-	cy_writel(&ch_ctrl->rs_control, rs);
-	ret = cyz_issue_cmd(cinfo, channel, C_CM_IOCTLM, 0L);
-	if (ret != 0)
-		printk(KERN_ERR "%s: retval on ttyC%d was %x\n",
-				__func__, info->line, ret);
-#ifdef CY_DEBUG_DTR
-	printk(KERN_DEBUG "%s: raising Z DTR\n", __func__);
-#endif
-}
-
-static const struct tty_port_operations cyy_port_ops = {
-	.carrier_raised = cyy_carrier_raised,
-	.dtr_rts = cyy_dtr_rts,
-	.shutdown = cy_do_close,
-};
-
-static const struct tty_port_operations cyz_port_ops = {
-	.carrier_raised = cyz_carrier_raised,
-	.dtr_rts = cyz_dtr_rts,
-	.shutdown = cy_do_close,
-};
-
-/*
- * ---------------------------------------------------------------------
- * cy_init() and friends
- *
- * cy_init() is called at boot-time to initialize the serial driver.
- * ---------------------------------------------------------------------
- */
-
-static int __devinit cy_init_card(struct cyclades_card *cinfo)
-{
-	struct cyclades_port *info;
-	unsigned int channel, port;
-
-	spin_lock_init(&cinfo->card_lock);
-	cinfo->intr_enabled = 0;
-
-	cinfo->ports = kcalloc(cinfo->nports, sizeof(*cinfo->ports),
-			GFP_KERNEL);
-	if (cinfo->ports == NULL) {
-		printk(KERN_ERR "Cyclades: cannot allocate ports\n");
-		return -ENOMEM;
-	}
-
-	for (channel = 0, port = cinfo->first_line; channel < cinfo->nports;
-			channel++, port++) {
-		info = &cinfo->ports[channel];
-		tty_port_init(&info->port);
-		info->magic = CYCLADES_MAGIC;
-		info->card = cinfo;
-		info->line = port;
-
-		info->port.closing_wait = CLOSING_WAIT_DELAY;
-		info->port.close_delay = 5 * HZ / 10;
-		info->port.flags = STD_COM_FLAGS;
-		init_completion(&info->shutdown_wait);
-
-		if (cy_is_Z(cinfo)) {
-			struct FIRM_ID *firm_id = cinfo->base_addr + ID_ADDRESS;
-			struct ZFW_CTRL *zfw_ctrl;
-
-			info->port.ops = &cyz_port_ops;
-			info->type = PORT_STARTECH;
-
-			zfw_ctrl = cinfo->base_addr +
-				(readl(&firm_id->zfwctrl_addr) & 0xfffff);
-			info->u.cyz.ch_ctrl = &zfw_ctrl->ch_ctrl[channel];
-			info->u.cyz.buf_ctrl = &zfw_ctrl->buf_ctrl[channel];
-
-			if (cinfo->hw_ver == ZO_V1)
-				info->xmit_fifo_size = CYZ_FIFO_SIZE;
-			else
-				info->xmit_fifo_size = 4 * CYZ_FIFO_SIZE;
-#ifdef CONFIG_CYZ_INTR
-			setup_timer(&cyz_rx_full_timer[port],
-				cyz_rx_restart, (unsigned long)info);
-#endif
-		} else {
-			unsigned short chip_number;
-			int index = cinfo->bus_index;
-
-			info->port.ops = &cyy_port_ops;
-			info->type = PORT_CIRRUS;
-			info->xmit_fifo_size = CyMAX_CHAR_FIFO;
-			info->cor1 = CyPARITY_NONE | Cy_1_STOP | Cy_8_BITS;
-			info->cor2 = CyETC;
-			info->cor3 = 0x08;	/* _very_ small rcv threshold */
-
-			chip_number = channel / CyPORTS_PER_CHIP;
-			info->u.cyy.base_addr = cinfo->base_addr +
-				(cy_chip_offset[chip_number] << index);
-			info->chip_rev = cyy_readb(info, CyGFRCR);
-
-			if (info->chip_rev >= CD1400_REV_J) {
-				/* It is a CD1400 rev. J or later */
-				info->tbpr = baud_bpr_60[13];	/* Tx BPR */
-				info->tco = baud_co_60[13];	/* Tx CO */
-				info->rbpr = baud_bpr_60[13];	/* Rx BPR */
-				info->rco = baud_co_60[13];	/* Rx CO */
-				info->rtsdtr_inv = 1;
-			} else {
-				info->tbpr = baud_bpr_25[13];	/* Tx BPR */
-				info->tco = baud_co_25[13];	/* Tx CO */
-				info->rbpr = baud_bpr_25[13];	/* Rx BPR */
-				info->rco = baud_co_25[13];	/* Rx CO */
-				info->rtsdtr_inv = 0;
-			}
-			info->read_status_mask = CyTIMEOUT | CySPECHAR |
-				CyBREAK | CyPARITY | CyFRAME | CyOVERRUN;
-		}
-
-	}
-
-#ifndef CONFIG_CYZ_INTR
-	if (cy_is_Z(cinfo) && !timer_pending(&cyz_timerlist)) {
-		mod_timer(&cyz_timerlist, jiffies + 1);
-#ifdef CY_PCI_DEBUG
-		printk(KERN_DEBUG "Cyclades-Z polling initialized\n");
-#endif
-	}
-#endif
-	return 0;
-}
-
-/* initialize chips on Cyclom-Y card -- return number of valid
-   chips (which is number of ports/4) */
-static unsigned short __devinit cyy_init_card(void __iomem *true_base_addr,
-		int index)
-{
-	unsigned int chip_number;
-	void __iomem *base_addr;
-
-	cy_writeb(true_base_addr + (Cy_HwReset << index), 0);
-	/* Cy_HwReset is 0x1400 */
-	cy_writeb(true_base_addr + (Cy_ClrIntr << index), 0);
-	/* Cy_ClrIntr is 0x1800 */
-	udelay(500L);
-
-	for (chip_number = 0; chip_number < CyMAX_CHIPS_PER_CARD;
-							chip_number++) {
-		base_addr =
-		    true_base_addr + (cy_chip_offset[chip_number] << index);
-		mdelay(1);
-		if (readb(base_addr + (CyCCR << index)) != 0x00) {
-			/*************
-			printk(" chip #%d at %#6lx is never idle (CCR != 0)\n",
-			chip_number, (unsigned long)base_addr);
-			*************/
-			return chip_number;
-		}
-
-		cy_writeb(base_addr + (CyGFRCR << index), 0);
-		udelay(10L);
-
-		/* The Cyclom-16Y does not decode address bit 9 and therefore
-		   cannot distinguish between references to chip 0 and a non-
-		   existent chip 4.  If the preceding clearing of the supposed
-		   chip 4 GFRCR register appears at chip 0, there is no chip 4
-		   and this must be a Cyclom-16Y, not a Cyclom-32Ye.
-		 */
-		if (chip_number == 4 && readb(true_base_addr +
-				(cy_chip_offset[0] << index) +
-				(CyGFRCR << index)) == 0) {
-			return chip_number;
-		}
-
-		cy_writeb(base_addr + (CyCCR << index), CyCHIP_RESET);
-		mdelay(1);
-
-		if (readb(base_addr + (CyGFRCR << index)) == 0x00) {
-			/*
-			   printk(" chip #%d at %#6lx is not responding ",
-			   chip_number, (unsigned long)base_addr);
-			   printk("(GFRCR stayed 0)\n",
-			 */
-			return chip_number;
-		}
-		if ((0xf0 & (readb(base_addr + (CyGFRCR << index)))) !=
-				0x40) {
-			/*
-			printk(" chip #%d at %#6lx is not valid (GFRCR == "
-					"%#2x)\n",
-					chip_number, (unsigned long)base_addr,
-					base_addr[CyGFRCR<<index]);
-			 */
-			return chip_number;
-		}
-		cy_writeb(base_addr + (CyGCR << index), CyCH0_SERIAL);
-		if (readb(base_addr + (CyGFRCR << index)) >= CD1400_REV_J) {
-			/* It is a CD1400 rev. J or later */
-			/* Impossible to reach 5ms with this chip.
-			   Changed to 2ms instead (f = 500 Hz). */
-			cy_writeb(base_addr + (CyPPR << index), CyCLOCK_60_2MS);
-		} else {
-			/* f = 200 Hz */
-			cy_writeb(base_addr + (CyPPR << index), CyCLOCK_25_5MS);
-		}
-
-		/*
-		   printk(" chip #%d at %#6lx is rev 0x%2x\n",
-		   chip_number, (unsigned long)base_addr,
-		   readb(base_addr+(CyGFRCR<<index)));
-		 */
-	}
-	return chip_number;
-}				/* cyy_init_card */
-
-/*
- * ---------------------------------------------------------------------
- * cy_detect_isa() - Probe for Cyclom-Y/ISA boards.
- * sets global variables and return the number of ISA boards found.
- * ---------------------------------------------------------------------
- */
-static int __init cy_detect_isa(void)
-{
-#ifdef CONFIG_ISA
-	unsigned short cy_isa_irq, nboard;
-	void __iomem *cy_isa_address;
-	unsigned short i, j, cy_isa_nchan;
-	int isparam = 0;
-
-	nboard = 0;
-
-	/* Check for module parameters */
-	for (i = 0; i < NR_CARDS; i++) {
-		if (maddr[i] || i) {
-			isparam = 1;
-			cy_isa_addresses[i] = maddr[i];
-		}
-		if (!maddr[i])
-			break;
-	}
-
-	/* scan the address table probing for Cyclom-Y/ISA boards */
-	for (i = 0; i < NR_ISA_ADDRS; i++) {
-		unsigned int isa_address = cy_isa_addresses[i];
-		if (isa_address == 0x0000)
-			return nboard;
-
-		/* probe for CD1400... */
-		cy_isa_address = ioremap_nocache(isa_address, CyISA_Ywin);
-		if (cy_isa_address == NULL) {
-			printk(KERN_ERR "Cyclom-Y/ISA: can't remap base "
-					"address\n");
-			continue;
-		}
-		cy_isa_nchan = CyPORTS_PER_CHIP *
-			cyy_init_card(cy_isa_address, 0);
-		if (cy_isa_nchan == 0) {
-			iounmap(cy_isa_address);
-			continue;
-		}
-
-		if (isparam && i < NR_CARDS && irq[i])
-			cy_isa_irq = irq[i];
-		else
-			/* find out the board's irq by probing */
-			cy_isa_irq = detect_isa_irq(cy_isa_address);
-		if (cy_isa_irq == 0) {
-			printk(KERN_ERR "Cyclom-Y/ISA found at 0x%lx, but the "
-				"IRQ could not be detected.\n",
-				(unsigned long)cy_isa_address);
-			iounmap(cy_isa_address);
-			continue;
-		}
-
-		if ((cy_next_channel + cy_isa_nchan) > NR_PORTS) {
-			printk(KERN_ERR "Cyclom-Y/ISA found at 0x%lx, but no "
-				"more channels are available. Change NR_PORTS "
-				"in cyclades.c and recompile kernel.\n",
-				(unsigned long)cy_isa_address);
-			iounmap(cy_isa_address);
-			return nboard;
-		}
-		/* fill the next cy_card structure available */
-		for (j = 0; j < NR_CARDS; j++) {
-			if (cy_card[j].base_addr == NULL)
-				break;
-		}
-		if (j == NR_CARDS) {	/* no more cy_cards available */
-			printk(KERN_ERR "Cyclom-Y/ISA found at 0x%lx, but no "
-				"more cards can be used. Change NR_CARDS in "
-				"cyclades.c and recompile kernel.\n",
-				(unsigned long)cy_isa_address);
-			iounmap(cy_isa_address);
-			return nboard;
-		}
-
-		/* allocate IRQ */
-		if (request_irq(cy_isa_irq, cyy_interrupt,
-				IRQF_DISABLED, "Cyclom-Y", &cy_card[j])) {
-			printk(KERN_ERR "Cyclom-Y/ISA found at 0x%lx, but "
-				"could not allocate IRQ#%d.\n",
-				(unsigned long)cy_isa_address, cy_isa_irq);
-			iounmap(cy_isa_address);
-			return nboard;
-		}
-
-		/* set cy_card */
-		cy_card[j].base_addr = cy_isa_address;
-		cy_card[j].ctl_addr.p9050 = NULL;
-		cy_card[j].irq = (int)cy_isa_irq;
-		cy_card[j].bus_index = 0;
-		cy_card[j].first_line = cy_next_channel;
-		cy_card[j].num_chips = cy_isa_nchan / CyPORTS_PER_CHIP;
-		cy_card[j].nports = cy_isa_nchan;
-		if (cy_init_card(&cy_card[j])) {
-			cy_card[j].base_addr = NULL;
-			free_irq(cy_isa_irq, &cy_card[j]);
-			iounmap(cy_isa_address);
-			continue;
-		}
-		nboard++;
-
-		printk(KERN_INFO "Cyclom-Y/ISA #%d: 0x%lx-0x%lx, IRQ%d found: "
-			"%d channels starting from port %d\n",
-			j + 1, (unsigned long)cy_isa_address,
-			(unsigned long)(cy_isa_address + (CyISA_Ywin - 1)),
-			cy_isa_irq, cy_isa_nchan, cy_next_channel);
-
-		for (j = cy_next_channel;
-				j < cy_next_channel + cy_isa_nchan; j++)
-			tty_register_device(cy_serial_driver, j, NULL);
-		cy_next_channel += cy_isa_nchan;
-	}
-	return nboard;
-#else
-	return 0;
-#endif				/* CONFIG_ISA */
-}				/* cy_detect_isa */
-
-#ifdef CONFIG_PCI
-static inline int __devinit cyc_isfwstr(const char *str, unsigned int size)
-{
-	unsigned int a;
-
-	for (a = 0; a < size && *str; a++, str++)
-		if (*str & 0x80)
-			return -EINVAL;
-
-	for (; a < size; a++, str++)
-		if (*str)
-			return -EINVAL;
-
-	return 0;
-}
-
-static inline void __devinit cyz_fpga_copy(void __iomem *fpga, const u8 *data,
-		unsigned int size)
-{
-	for (; size > 0; size--) {
-		cy_writel(fpga, *data++);
-		udelay(10);
-	}
-}
-
-static void __devinit plx_init(struct pci_dev *pdev, int irq,
-		struct RUNTIME_9060 __iomem *addr)
-{
-	/* Reset PLX */
-	cy_writel(&addr->init_ctrl, readl(&addr->init_ctrl) | 0x40000000);
-	udelay(100L);
-	cy_writel(&addr->init_ctrl, readl(&addr->init_ctrl) & ~0x40000000);
-
-	/* Reload Config. Registers from EEPROM */
-	cy_writel(&addr->init_ctrl, readl(&addr->init_ctrl) | 0x20000000);
-	udelay(100L);
-	cy_writel(&addr->init_ctrl, readl(&addr->init_ctrl) & ~0x20000000);
-
-	/* For some yet unknown reason, once the PLX9060 reloads the EEPROM,
-	 * the IRQ is lost and, thus, we have to re-write it to the PCI config.
-	 * registers. This will remain here until we find a permanent fix.
-	 */
-	pci_write_config_byte(pdev, PCI_INTERRUPT_LINE, irq);
-}
-
-static int __devinit __cyz_load_fw(const struct firmware *fw,
-		const char *name, const u32 mailbox, void __iomem *base,
-		void __iomem *fpga)
-{
-	const void *ptr = fw->data;
-	const struct zfile_header *h = ptr;
-	const struct zfile_config *c, *cs;
-	const struct zfile_block *b, *bs;
-	unsigned int a, tmp, len = fw->size;
-#define BAD_FW KERN_ERR "Bad firmware: "
-	if (len < sizeof(*h)) {
-		printk(BAD_FW "too short: %u<%zu\n", len, sizeof(*h));
-		return -EINVAL;
-	}
-
-	cs = ptr + h->config_offset;
-	bs = ptr + h->block_offset;
-
-	if ((void *)(cs + h->n_config) > ptr + len ||
-			(void *)(bs + h->n_blocks) > ptr + len) {
-		printk(BAD_FW "too short");
-		return  -EINVAL;
-	}
-
-	if (cyc_isfwstr(h->name, sizeof(h->name)) ||
-			cyc_isfwstr(h->date, sizeof(h->date))) {
-		printk(BAD_FW "bad formatted header string\n");
-		return -EINVAL;
-	}
-
-	if (strncmp(name, h->name, sizeof(h->name))) {
-		printk(BAD_FW "bad name '%s' (expected '%s')\n", h->name, name);
-		return -EINVAL;
-	}
-
-	tmp = 0;
-	for (c = cs; c < cs + h->n_config; c++) {
-		for (a = 0; a < c->n_blocks; a++)
-			if (c->block_list[a] > h->n_blocks) {
-				printk(BAD_FW "bad block ref number in cfgs\n");
-				return -EINVAL;
-			}
-		if (c->mailbox == mailbox && c->function == 0) /* 0 is normal */
-			tmp++;
-	}
-	if (!tmp) {
-		printk(BAD_FW "nothing appropriate\n");
-		return -EINVAL;
-	}
-
-	for (b = bs; b < bs + h->n_blocks; b++)
-		if (b->file_offset + b->size > len) {
-			printk(BAD_FW "bad block data offset\n");
-			return -EINVAL;
-		}
-
-	/* everything is OK, let's seek'n'load it */
-	for (c = cs; c < cs + h->n_config; c++)
-		if (c->mailbox == mailbox && c->function == 0)
-			break;
-
-	for (a = 0; a < c->n_blocks; a++) {
-		b = &bs[c->block_list[a]];
-		if (b->type == ZBLOCK_FPGA) {
-			if (fpga != NULL)
-				cyz_fpga_copy(fpga, ptr + b->file_offset,
-						b->size);
-		} else {
-			if (base != NULL)
-				memcpy_toio(base + b->ram_offset,
-					       ptr + b->file_offset, b->size);
-		}
-	}
-#undef BAD_FW
-	return 0;
-}
-
-static int __devinit cyz_load_fw(struct pci_dev *pdev, void __iomem *base_addr,
-		struct RUNTIME_9060 __iomem *ctl_addr, int irq)
-{
-	const struct firmware *fw;
-	struct FIRM_ID __iomem *fid = base_addr + ID_ADDRESS;
-	struct CUSTOM_REG __iomem *cust = base_addr;
-	struct ZFW_CTRL __iomem *pt_zfwctrl;
-	void __iomem *tmp;
-	u32 mailbox, status, nchan;
-	unsigned int i;
-	int retval;
-
-	retval = request_firmware(&fw, "cyzfirm.bin", &pdev->dev);
-	if (retval) {
-		dev_err(&pdev->dev, "can't get firmware\n");
-		goto err;
-	}
-
-	/* Check whether the firmware is already loaded and running. If
-	   positive, skip this board */
-	if (__cyz_fpga_loaded(ctl_addr) && readl(&fid->signature) == ZFIRM_ID) {
-		u32 cntval = readl(base_addr + 0x190);
-
-		udelay(100);
-		if (cntval != readl(base_addr + 0x190)) {
-			/* FW counter is working, FW is running */
-			dev_dbg(&pdev->dev, "Cyclades-Z FW already loaded. "
-					"Skipping board.\n");
-			retval = 0;
-			goto err_rel;
-		}
-	}
-
-	/* start boot */
-	cy_writel(&ctl_addr->intr_ctrl_stat, readl(&ctl_addr->intr_ctrl_stat) &
-			~0x00030800UL);
-
-	mailbox = readl(&ctl_addr->mail_box_0);
-
-	if (mailbox == 0 || __cyz_fpga_loaded(ctl_addr)) {
-		/* stops CPU and set window to beginning of RAM */
-		cy_writel(&ctl_addr->loc_addr_base, WIN_CREG);
-		cy_writel(&cust->cpu_stop, 0);
-		cy_writel(&ctl_addr->loc_addr_base, WIN_RAM);
-		udelay(100);
-	}
-
-	plx_init(pdev, irq, ctl_addr);
-
-	if (mailbox != 0) {
-		/* load FPGA */
-		retval = __cyz_load_fw(fw, "Cyclom-Z", mailbox, NULL,
-				base_addr);
-		if (retval)
-			goto err_rel;
-		if (!__cyz_fpga_loaded(ctl_addr)) {
-			dev_err(&pdev->dev, "fw upload successful, but fw is "
-					"not loaded\n");
-			goto err_rel;
-		}
-	}
-
-	/* stops CPU and set window to beginning of RAM */
-	cy_writel(&ctl_addr->loc_addr_base, WIN_CREG);
-	cy_writel(&cust->cpu_stop, 0);
-	cy_writel(&ctl_addr->loc_addr_base, WIN_RAM);
-	udelay(100);
-
-	/* clear memory */
-	for (tmp = base_addr; tmp < base_addr + RAM_SIZE; tmp++)
-		cy_writeb(tmp, 255);
-	if (mailbox != 0) {
-		/* set window to last 512K of RAM */
-		cy_writel(&ctl_addr->loc_addr_base, WIN_RAM + RAM_SIZE);
-		for (tmp = base_addr; tmp < base_addr + RAM_SIZE; tmp++)
-			cy_writeb(tmp, 255);
-		/* set window to beginning of RAM */
-		cy_writel(&ctl_addr->loc_addr_base, WIN_RAM);
-	}
-
-	retval = __cyz_load_fw(fw, "Cyclom-Z", mailbox, base_addr, NULL);
-	release_firmware(fw);
-	if (retval)
-		goto err;
-
-	/* finish boot and start boards */
-	cy_writel(&ctl_addr->loc_addr_base, WIN_CREG);
-	cy_writel(&cust->cpu_start, 0);
-	cy_writel(&ctl_addr->loc_addr_base, WIN_RAM);
-	i = 0;
-	while ((status = readl(&fid->signature)) != ZFIRM_ID && i++ < 40)
-		msleep(100);
-	if (status != ZFIRM_ID) {
-		if (status == ZFIRM_HLT) {
-			dev_err(&pdev->dev, "you need an external power supply "
-				"for this number of ports. Firmware halted and "
-				"board reset.\n");
-			retval = -EIO;
-			goto err;
-		}
-		dev_warn(&pdev->dev, "fid->signature = 0x%x... Waiting "
-				"some more time\n", status);
-		while ((status = readl(&fid->signature)) != ZFIRM_ID &&
-				i++ < 200)
-			msleep(100);
-		if (status != ZFIRM_ID) {
-			dev_err(&pdev->dev, "Board not started in 20 seconds! "
-					"Giving up. (fid->signature = 0x%x)\n",
-					status);
-			dev_info(&pdev->dev, "*** Warning ***: if you are "
-				"upgrading the FW, please power cycle the "
-				"system before loading the new FW to the "
-				"Cyclades-Z.\n");
-
-			if (__cyz_fpga_loaded(ctl_addr))
-				plx_init(pdev, irq, ctl_addr);
-
-			retval = -EIO;
-			goto err;
-		}
-		dev_dbg(&pdev->dev, "Firmware started after %d seconds.\n",
-				i / 10);
-	}
-	pt_zfwctrl = base_addr + readl(&fid->zfwctrl_addr);
-
-	dev_dbg(&pdev->dev, "fid=> %p, zfwctrl_addr=> %x, npt_zfwctrl=> %p\n",
-			base_addr + ID_ADDRESS, readl(&fid->zfwctrl_addr),
-			base_addr + readl(&fid->zfwctrl_addr));
-
-	nchan = readl(&pt_zfwctrl->board_ctrl.n_channel);
-	dev_info(&pdev->dev, "Cyclades-Z FW loaded: version = %x, ports = %u\n",
-		readl(&pt_zfwctrl->board_ctrl.fw_version), nchan);
-
-	if (nchan == 0) {
-		dev_warn(&pdev->dev, "no Cyclades-Z ports were found. Please "
-			"check the connection between the Z host card and the "
-			"serial expanders.\n");
-
-		if (__cyz_fpga_loaded(ctl_addr))
-			plx_init(pdev, irq, ctl_addr);
-
-		dev_info(&pdev->dev, "Null number of ports detected. Board "
-				"reset.\n");
-		retval = 0;
-		goto err;
-	}
-
-	cy_writel(&pt_zfwctrl->board_ctrl.op_system, C_OS_LINUX);
-	cy_writel(&pt_zfwctrl->board_ctrl.dr_version, DRIVER_VERSION);
-
-	/*
-	   Early firmware failed to start looking for commands.
-	   This enables firmware interrupts for those commands.
-	 */
-	cy_writel(&ctl_addr->intr_ctrl_stat, readl(&ctl_addr->intr_ctrl_stat) |
-			(1 << 17));
-	cy_writel(&ctl_addr->intr_ctrl_stat, readl(&ctl_addr->intr_ctrl_stat) |
-			0x00030800UL);
-
-	return nchan;
-err_rel:
-	release_firmware(fw);
-err:
-	return retval;
-}
-
-static int __devinit cy_pci_probe(struct pci_dev *pdev,
-		const struct pci_device_id *ent)
-{
-	void __iomem *addr0 = NULL, *addr2 = NULL;
-	char *card_name = NULL;
-	u32 uninitialized_var(mailbox);
-	unsigned int device_id, nchan = 0, card_no, i;
-	unsigned char plx_ver;
-	int retval, irq;
-
-	retval = pci_enable_device(pdev);
-	if (retval) {
-		dev_err(&pdev->dev, "cannot enable device\n");
-		goto err;
-	}
-
-	/* read PCI configuration area */
-	irq = pdev->irq;
-	device_id = pdev->device & ~PCI_DEVICE_ID_MASK;
-
-#if defined(__alpha__)
-	if (device_id == PCI_DEVICE_ID_CYCLOM_Y_Lo) {	/* below 1M? */
-		dev_err(&pdev->dev, "Cyclom-Y/PCI not supported for low "
-			"addresses on Alpha systems.\n");
-		retval = -EIO;
-		goto err_dis;
-	}
-#endif
-	if (device_id == PCI_DEVICE_ID_CYCLOM_Z_Lo) {
-		dev_err(&pdev->dev, "Cyclades-Z/PCI not supported for low "
-			"addresses\n");
-		retval = -EIO;
-		goto err_dis;
-	}
-
-	if (pci_resource_flags(pdev, 2) & IORESOURCE_IO) {
-		dev_warn(&pdev->dev, "PCI I/O bit incorrectly set. Ignoring "
-				"it...\n");
-		pdev->resource[2].flags &= ~IORESOURCE_IO;
-	}
-
-	retval = pci_request_regions(pdev, "cyclades");
-	if (retval) {
-		dev_err(&pdev->dev, "failed to reserve resources\n");
-		goto err_dis;
-	}
-
-	retval = -EIO;
-	if (device_id == PCI_DEVICE_ID_CYCLOM_Y_Lo ||
-			device_id == PCI_DEVICE_ID_CYCLOM_Y_Hi) {
-		card_name = "Cyclom-Y";
-
-		addr0 = ioremap_nocache(pci_resource_start(pdev, 0),
-				CyPCI_Yctl);
-		if (addr0 == NULL) {
-			dev_err(&pdev->dev, "can't remap ctl region\n");
-			goto err_reg;
-		}
-		addr2 = ioremap_nocache(pci_resource_start(pdev, 2),
-				CyPCI_Ywin);
-		if (addr2 == NULL) {
-			dev_err(&pdev->dev, "can't remap base region\n");
-			goto err_unmap;
-		}
-
-		nchan = CyPORTS_PER_CHIP * cyy_init_card(addr2, 1);
-		if (nchan == 0) {
-			dev_err(&pdev->dev, "Cyclom-Y PCI host card with no "
-					"Serial-Modules\n");
-			goto err_unmap;
-		}
-	} else if (device_id == PCI_DEVICE_ID_CYCLOM_Z_Hi) {
-		struct RUNTIME_9060 __iomem *ctl_addr;
-
-		ctl_addr = addr0 = ioremap_nocache(pci_resource_start(pdev, 0),
-				CyPCI_Zctl);
-		if (addr0 == NULL) {
-			dev_err(&pdev->dev, "can't remap ctl region\n");
-			goto err_reg;
-		}
-
-		/* Disable interrupts on the PLX before resetting it */
-		cy_writew(&ctl_addr->intr_ctrl_stat,
-				readw(&ctl_addr->intr_ctrl_stat) & ~0x0900);
-
-		plx_init(pdev, irq, addr0);
-
-		mailbox = readl(&ctl_addr->mail_box_0);
-
-		addr2 = ioremap_nocache(pci_resource_start(pdev, 2),
-				mailbox == ZE_V1 ? CyPCI_Ze_win : CyPCI_Zwin);
-		if (addr2 == NULL) {
-			dev_err(&pdev->dev, "can't remap base region\n");
-			goto err_unmap;
-		}
-
-		if (mailbox == ZE_V1) {
-			card_name = "Cyclades-Ze";
-		} else {
-			card_name = "Cyclades-8Zo";
-#ifdef CY_PCI_DEBUG
-			if (mailbox == ZO_V1) {
-				cy_writel(&ctl_addr->loc_addr_base, WIN_CREG);
-				dev_info(&pdev->dev, "Cyclades-8Zo/PCI: FPGA "
-					"id %lx, ver %lx\n", (ulong)(0xff &
-					readl(&((struct CUSTOM_REG *)addr2)->
-						fpga_id)), (ulong)(0xff &
-					readl(&((struct CUSTOM_REG *)addr2)->
-						fpga_version)));
-				cy_writel(&ctl_addr->loc_addr_base, WIN_RAM);
-			} else {
-				dev_info(&pdev->dev, "Cyclades-Z/PCI: New "
-					"Cyclades-Z board.  FPGA not loaded\n");
-			}
-#endif
-			/* The following clears the firmware id word.  This
-			   ensures that the driver will not attempt to talk to
-			   the board until it has been properly initialized.
-			 */
-			if ((mailbox == ZO_V1) || (mailbox == ZO_V2))
-				cy_writel(addr2 + ID_ADDRESS, 0L);
-		}
-
-		retval = cyz_load_fw(pdev, addr2, addr0, irq);
-		if (retval <= 0)
-			goto err_unmap;
-		nchan = retval;
-	}
-
-	if ((cy_next_channel + nchan) > NR_PORTS) {
-		dev_err(&pdev->dev, "Cyclades-8Zo/PCI found, but no "
-			"channels are available. Change NR_PORTS in "
-			"cyclades.c and recompile kernel.\n");
-		goto err_unmap;
-	}
-	/* fill the next cy_card structure available */
-	for (card_no = 0; card_no < NR_CARDS; card_no++) {
-		if (cy_card[card_no].base_addr == NULL)
-			break;
-	}
-	if (card_no == NR_CARDS) {	/* no more cy_cards available */
-		dev_err(&pdev->dev, "Cyclades-8Zo/PCI found, but no "
-			"more cards can be used. Change NR_CARDS in "
-			"cyclades.c and recompile kernel.\n");
-		goto err_unmap;
-	}
-
-	if (device_id == PCI_DEVICE_ID_CYCLOM_Y_Lo ||
-			device_id == PCI_DEVICE_ID_CYCLOM_Y_Hi) {
-		/* allocate IRQ */
-		retval = request_irq(irq, cyy_interrupt,
-				IRQF_SHARED, "Cyclom-Y", &cy_card[card_no]);
-		if (retval) {
-			dev_err(&pdev->dev, "could not allocate IRQ\n");
-			goto err_unmap;
-		}
-		cy_card[card_no].num_chips = nchan / CyPORTS_PER_CHIP;
-	} else {
-		struct FIRM_ID __iomem *firm_id = addr2 + ID_ADDRESS;
-		struct ZFW_CTRL __iomem *zfw_ctrl;
-
-		zfw_ctrl = addr2 + (readl(&firm_id->zfwctrl_addr) & 0xfffff);
-
-		cy_card[card_no].hw_ver = mailbox;
-		cy_card[card_no].num_chips = (unsigned int)-1;
-		cy_card[card_no].board_ctrl = &zfw_ctrl->board_ctrl;
-#ifdef CONFIG_CYZ_INTR
-		/* allocate IRQ only if board has an IRQ */
-		if (irq != 0 && irq != 255) {
-			retval = request_irq(irq, cyz_interrupt,
-					IRQF_SHARED, "Cyclades-Z",
-					&cy_card[card_no]);
-			if (retval) {
-				dev_err(&pdev->dev, "could not allocate IRQ\n");
-				goto err_unmap;
-			}
-		}
-#endif				/* CONFIG_CYZ_INTR */
-	}
-
-	/* set cy_card */
-	cy_card[card_no].base_addr = addr2;
-	cy_card[card_no].ctl_addr.p9050 = addr0;
-	cy_card[card_no].irq = irq;
-	cy_card[card_no].bus_index = 1;
-	cy_card[card_no].first_line = cy_next_channel;
-	cy_card[card_no].nports = nchan;
-	retval = cy_init_card(&cy_card[card_no]);
-	if (retval)
-		goto err_null;
-
-	pci_set_drvdata(pdev, &cy_card[card_no]);
-
-	if (device_id == PCI_DEVICE_ID_CYCLOM_Y_Lo ||
-			device_id == PCI_DEVICE_ID_CYCLOM_Y_Hi) {
-		/* enable interrupts in the PCI interface */
-		plx_ver = readb(addr2 + CyPLX_VER) & 0x0f;
-		switch (plx_ver) {
-		case PLX_9050:
-			cy_writeb(addr0 + 0x4c, 0x43);
-			break;
-
-		case PLX_9060:
-		case PLX_9080:
-		default:	/* Old boards, use PLX_9060 */
-		{
-			struct RUNTIME_9060 __iomem *ctl_addr = addr0;
-			plx_init(pdev, irq, ctl_addr);
-			cy_writew(&ctl_addr->intr_ctrl_stat,
-				readw(&ctl_addr->intr_ctrl_stat) | 0x0900);
-			break;
-		}
-		}
-	}
-
-	dev_info(&pdev->dev, "%s/PCI #%d found: %d channels starting from "
-		"port %d.\n", card_name, card_no + 1, nchan, cy_next_channel);
-	for (i = cy_next_channel; i < cy_next_channel + nchan; i++)
-		tty_register_device(cy_serial_driver, i, &pdev->dev);
-	cy_next_channel += nchan;
-
-	return 0;
-err_null:
-	cy_card[card_no].base_addr = NULL;
-	free_irq(irq, &cy_card[card_no]);
-err_unmap:
-	iounmap(addr0);
-	if (addr2)
-		iounmap(addr2);
-err_reg:
-	pci_release_regions(pdev);
-err_dis:
-	pci_disable_device(pdev);
-err:
-	return retval;
-}
-
-static void __devexit cy_pci_remove(struct pci_dev *pdev)
-{
-	struct cyclades_card *cinfo = pci_get_drvdata(pdev);
-	unsigned int i;
-
-	/* non-Z with old PLX */
-	if (!cy_is_Z(cinfo) && (readb(cinfo->base_addr + CyPLX_VER) & 0x0f) ==
-			PLX_9050)
-		cy_writeb(cinfo->ctl_addr.p9050 + 0x4c, 0);
-	else
-#ifndef CONFIG_CYZ_INTR
-		if (!cy_is_Z(cinfo))
-#endif
-		cy_writew(&cinfo->ctl_addr.p9060->intr_ctrl_stat,
-			readw(&cinfo->ctl_addr.p9060->intr_ctrl_stat) &
-			~0x0900);
-
-	iounmap(cinfo->base_addr);
-	if (cinfo->ctl_addr.p9050)
-		iounmap(cinfo->ctl_addr.p9050);
-	if (cinfo->irq
-#ifndef CONFIG_CYZ_INTR
-		&& !cy_is_Z(cinfo)
-#endif /* CONFIG_CYZ_INTR */
-		)
-		free_irq(cinfo->irq, cinfo);
-	pci_release_regions(pdev);
-
-	cinfo->base_addr = NULL;
-	for (i = cinfo->first_line; i < cinfo->first_line +
-			cinfo->nports; i++)
-		tty_unregister_device(cy_serial_driver, i);
-	cinfo->nports = 0;
-	kfree(cinfo->ports);
-}
-
-static struct pci_driver cy_pci_driver = {
-	.name = "cyclades",
-	.id_table = cy_pci_dev_id,
-	.probe = cy_pci_probe,
-	.remove = __devexit_p(cy_pci_remove)
-};
-#endif
-
-static int cyclades_proc_show(struct seq_file *m, void *v)
-{
-	struct cyclades_port *info;
-	unsigned int i, j;
-	__u32 cur_jifs = jiffies;
-
-	seq_puts(m, "Dev TimeOpen   BytesOut  IdleOut    BytesIn   "
-			"IdleIn  Overruns  Ldisc\n");
-
-	/* Output one line for each known port */
-	for (i = 0; i < NR_CARDS; i++)
-		for (j = 0; j < cy_card[i].nports; j++) {
-			info = &cy_card[i].ports[j];
-
-			if (info->port.count) {
-				/* XXX is the ldisc num worth this? */
-				struct tty_struct *tty;
-				struct tty_ldisc *ld;
-				int num = 0;
-				tty = tty_port_tty_get(&info->port);
-				if (tty) {
-					ld = tty_ldisc_ref(tty);
-					if (ld) {
-						num = ld->ops->num;
-						tty_ldisc_deref(ld);
-					}
-					tty_kref_put(tty);
-				}
-				seq_printf(m, "%3d %8lu %10lu %8lu "
-					"%10lu %8lu %9lu %6d\n", info->line,
-					(cur_jifs - info->idle_stats.in_use) /
-					HZ, info->idle_stats.xmit_bytes,
-					(cur_jifs - info->idle_stats.xmit_idle)/
-					HZ, info->idle_stats.recv_bytes,
-					(cur_jifs - info->idle_stats.recv_idle)/
-					HZ, info->idle_stats.overruns,
-					num);
-			} else
-				seq_printf(m, "%3d %8lu %10lu %8lu "
-					"%10lu %8lu %9lu %6ld\n",
-					info->line, 0L, 0L, 0L, 0L, 0L, 0L, 0L);
-		}
-	return 0;
-}
-
-static int cyclades_proc_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, cyclades_proc_show, NULL);
-}
-
-static const struct file_operations cyclades_proc_fops = {
-	.owner		= THIS_MODULE,
-	.open		= cyclades_proc_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-
-/* The serial driver boot-time initialization code!
-    Hardware I/O ports are mapped to character special devices on a
-    first found, first allocated manner.  That is, this code searches
-    for Cyclom cards in the system.  As each is found, it is probed
-    to discover how many chips (and thus how many ports) are present.
-    These ports are mapped to the tty ports 32 and upward in monotonic
-    fashion.  If an 8-port card is replaced with a 16-port card, the
-    port mapping on a following card will shift.
-
-    This approach is different from what is used in the other serial
-    device driver because the Cyclom is more properly a multiplexer,
-    not just an aggregation of serial ports on one card.
-
-    If there are more cards with more ports than have been
-    statically allocated above, a warning is printed and the
-    extra ports are ignored.
- */
-
-static const struct tty_operations cy_ops = {
-	.open = cy_open,
-	.close = cy_close,
-	.write = cy_write,
-	.put_char = cy_put_char,
-	.flush_chars = cy_flush_chars,
-	.write_room = cy_write_room,
-	.chars_in_buffer = cy_chars_in_buffer,
-	.flush_buffer = cy_flush_buffer,
-	.ioctl = cy_ioctl,
-	.throttle = cy_throttle,
-	.unthrottle = cy_unthrottle,
-	.set_termios = cy_set_termios,
-	.stop = cy_stop,
-	.start = cy_start,
-	.hangup = cy_hangup,
-	.break_ctl = cy_break,
-	.wait_until_sent = cy_wait_until_sent,
-	.tiocmget = cy_tiocmget,
-	.tiocmset = cy_tiocmset,
-	.get_icount = cy_get_icount,
-	.proc_fops = &cyclades_proc_fops,
-};
-
-static int __init cy_init(void)
-{
-	unsigned int nboards;
-	int retval = -ENOMEM;
-
-	cy_serial_driver = alloc_tty_driver(NR_PORTS);
-	if (!cy_serial_driver)
-		goto err;
-
-	printk(KERN_INFO "Cyclades driver " CY_VERSION " (built %s %s)\n",
-			__DATE__, __TIME__);
-
-	/* Initialize the tty_driver structure */
-
-	cy_serial_driver->owner = THIS_MODULE;
-	cy_serial_driver->driver_name = "cyclades";
-	cy_serial_driver->name = "ttyC";
-	cy_serial_driver->major = CYCLADES_MAJOR;
-	cy_serial_driver->minor_start = 0;
-	cy_serial_driver->type = TTY_DRIVER_TYPE_SERIAL;
-	cy_serial_driver->subtype = SERIAL_TYPE_NORMAL;
-	cy_serial_driver->init_termios = tty_std_termios;
-	cy_serial_driver->init_termios.c_cflag =
-	    B9600 | CS8 | CREAD | HUPCL | CLOCAL;
-	cy_serial_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
-	tty_set_operations(cy_serial_driver, &cy_ops);
-
-	retval = tty_register_driver(cy_serial_driver);
-	if (retval) {
-		printk(KERN_ERR "Couldn't register Cyclades serial driver\n");
-		goto err_frtty;
-	}
-
-	/* the code below is responsible to find the boards. Each different
-	   type of board has its own detection routine. If a board is found,
-	   the next cy_card structure available is set by the detection
-	   routine. These functions are responsible for checking the
-	   availability of cy_card and cy_port data structures and updating
-	   the cy_next_channel. */
-
-	/* look for isa boards */
-	nboards = cy_detect_isa();
-
-#ifdef CONFIG_PCI
-	/* look for pci boards */
-	retval = pci_register_driver(&cy_pci_driver);
-	if (retval && !nboards) {
-		tty_unregister_driver(cy_serial_driver);
-		goto err_frtty;
-	}
-#endif
-
-	return 0;
-err_frtty:
-	put_tty_driver(cy_serial_driver);
-err:
-	return retval;
-}				/* cy_init */
-
-static void __exit cy_cleanup_module(void)
-{
-	struct cyclades_card *card;
-	unsigned int i, e1;
-
-#ifndef CONFIG_CYZ_INTR
-	del_timer_sync(&cyz_timerlist);
-#endif /* CONFIG_CYZ_INTR */
-
-	e1 = tty_unregister_driver(cy_serial_driver);
-	if (e1)
-		printk(KERN_ERR "failed to unregister Cyclades serial "
-				"driver(%d)\n", e1);
-
-#ifdef CONFIG_PCI
-	pci_unregister_driver(&cy_pci_driver);
-#endif
-
-	for (i = 0; i < NR_CARDS; i++) {
-		card = &cy_card[i];
-		if (card->base_addr) {
-			/* clear interrupt */
-			cy_writeb(card->base_addr + Cy_ClrIntr, 0);
-			iounmap(card->base_addr);
-			if (card->ctl_addr.p9050)
-				iounmap(card->ctl_addr.p9050);
-			if (card->irq
-#ifndef CONFIG_CYZ_INTR
-				&& !cy_is_Z(card)
-#endif /* CONFIG_CYZ_INTR */
-				)
-				free_irq(card->irq, card);
-			for (e1 = card->first_line; e1 < card->first_line +
-					card->nports; e1++)
-				tty_unregister_device(cy_serial_driver, e1);
-			kfree(card->ports);
-		}
-	}
-
-	put_tty_driver(cy_serial_driver);
-} /* cy_cleanup_module */
-
-module_init(cy_init);
-module_exit(cy_cleanup_module);
-
-MODULE_LICENSE("GPL");
-MODULE_VERSION(CY_VERSION);
-MODULE_ALIAS_CHARDEV_MAJOR(CYCLADES_MAJOR);
-MODULE_FIRMWARE("cyzfirm.bin");
diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c
deleted file mode 100644
index db1cf9c328d8..000000000000
--- a/drivers/char/isicom.c
+++ /dev/null
@@ -1,1736 +0,0 @@
-/*
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License
- *	as published by the Free Software Foundation; either version
- *	2 of the License, or (at your option) any later version.
- *
- *	Original driver code supplied by Multi-Tech
- *
- *	Changes
- *	1/9/98	alan@lxorguk.ukuu.org.uk
- *					Merge to 2.0.x kernel tree
- *					Obtain and use official major/minors
- *					Loader switched to a misc device
- *					(fixed range check bug as a side effect)
- *					Printk clean up
- *	9/12/98	alan@lxorguk.ukuu.org.uk
- *					Rough port to 2.1.x
- *
- *	10/6/99 sameer			Merged the ISA and PCI drivers to
- *					a new unified driver.
- *
- *	3/9/99	sameer			Added support for ISI4616 cards.
- *
- *	16/9/99	sameer			We do not force RTS low anymore.
- *					This is to prevent the firmware
- *					from getting confused.
- *
- *	26/10/99 sameer			Cosmetic changes:The driver now
- *					dumps the Port Count information
- *					along with I/O address and IRQ.
- *
- *	13/12/99 sameer			Fixed the problem with IRQ sharing.
- *
- *	10/5/00  sameer			Fixed isicom_shutdown_board()
- *					to not lower DTR on all the ports
- *					when the last port on the card is
- *					closed.
- *
- *	10/5/00  sameer			Signal mask setup command added
- *					to  isicom_setup_port and
- *					isicom_shutdown_port.
- *
- *	24/5/00  sameer			The driver is now SMP aware.
- *
- *
- *	27/11/00 Vinayak P Risbud	Fixed the Driver Crash Problem
- *
- *
- *	03/01/01  anil .s		Added support for resetting the
- *					internal modems on ISI cards.
- *
- *	08/02/01  anil .s		Upgraded the driver for kernel
- *					2.4.x
- *
- *	11/04/01  Kevin			Fixed firmware load problem with
- *					ISIHP-4X card
- *
- *	30/04/01  anil .s		Fixed the remote login through
- *					ISI port problem. Now the link
- *					does not go down before password
- *					prompt.
- *
- *	03/05/01  anil .s		Fixed the problem with IRQ sharing
- *					among ISI-PCI cards.
- *
- *	03/05/01  anil .s		Added support to display the version
- *					info during insmod as well as module
- *					listing by lsmod.
- *
- *	10/05/01  anil .s		Done the modifications to the source
- *					file and Install script so that the
- *					same installation can be used for
- *					2.2.x and 2.4.x kernel.
- *
- *	06/06/01  anil .s		Now we drop both dtr and rts during
- *					shutdown_port as well as raise them
- *					during isicom_config_port.
- *
- *	09/06/01 acme@conectiva.com.br	use capable, not suser, do
- *					restore_flags on failure in
- *					isicom_send_break, verify put_user
- *					result
- *
- *	11/02/03  ranjeeth		Added support for 230 Kbps and 460 Kbps
- *					Baud index extended to 21
- *
- *	20/03/03  ranjeeth		Made to work for Linux Advanced server.
- *					Taken care of license warning.
- *
- *	10/12/03  Ravindra		Made to work for Fedora Core 1 of
- *					Red Hat Distribution
- *
- *	06/01/05  Alan Cox 		Merged the ISI and base kernel strands
- *					into a single 2.6 driver
- *
- *	***********************************************************
- *
- *	To use this driver you also need the support package. You
- *	can find this in RPM format on
- *		ftp://ftp.linux.org.uk/pub/linux/alan
- *
- *	You can find the original tools for this direct from Multitech
- *		ftp://ftp.multitech.com/ISI-Cards/
- *
- *	Having installed the cards the module options (/etc/modprobe.conf)
- *
- *	options isicom   io=card1,card2,card3,card4 irq=card1,card2,card3,card4
- *
- *	Omit those entries for boards you don't have installed.
- *
- *	TODO
- *		Merge testing
- *		64-bit verification
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-#include <linux/firmware.h>
-#include <linux/kernel.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/termios.h>
-#include <linux/fs.h>
-#include <linux/sched.h>
-#include <linux/serial.h>
-#include <linux/mm.h>
-#include <linux/interrupt.h>
-#include <linux/timer.h>
-#include <linux/delay.h>
-#include <linux/ioport.h>
-#include <linux/slab.h>
-
-#include <linux/uaccess.h>
-#include <linux/io.h>
-#include <asm/system.h>
-
-#include <linux/pci.h>
-
-#include <linux/isicom.h>
-
-#define InterruptTheCard(base) outw(0, (base) + 0xc)
-#define ClearInterrupt(base) inw((base) + 0x0a)
-
-#ifdef DEBUG
-#define isicom_paranoia_check(a, b, c) __isicom_paranoia_check((a), (b), (c))
-#else
-#define isicom_paranoia_check(a, b, c) 0
-#endif
-
-static int isicom_probe(struct pci_dev *, const struct pci_device_id *);
-static void __devexit isicom_remove(struct pci_dev *);
-
-static struct pci_device_id isicom_pci_tbl[] = {
-	{ PCI_DEVICE(VENDOR_ID, 0x2028) },
-	{ PCI_DEVICE(VENDOR_ID, 0x2051) },
-	{ PCI_DEVICE(VENDOR_ID, 0x2052) },
-	{ PCI_DEVICE(VENDOR_ID, 0x2053) },
-	{ PCI_DEVICE(VENDOR_ID, 0x2054) },
-	{ PCI_DEVICE(VENDOR_ID, 0x2055) },
-	{ PCI_DEVICE(VENDOR_ID, 0x2056) },
-	{ PCI_DEVICE(VENDOR_ID, 0x2057) },
-	{ PCI_DEVICE(VENDOR_ID, 0x2058) },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, isicom_pci_tbl);
-
-static struct pci_driver isicom_driver = {
-	.name		= "isicom",
-	.id_table	= isicom_pci_tbl,
-	.probe		= isicom_probe,
-	.remove		= __devexit_p(isicom_remove)
-};
-
-static int prev_card = 3;	/*	start servicing isi_card[0]	*/
-static struct tty_driver *isicom_normal;
-
-static void isicom_tx(unsigned long _data);
-static void isicom_start(struct tty_struct *tty);
-
-static DEFINE_TIMER(tx, isicom_tx, 0, 0);
-
-/*   baud index mappings from linux defns to isi */
-
-static signed char linuxb_to_isib[] = {
-	-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 16, 17, 18, 19, 20, 21
-};
-
-struct	isi_board {
-	unsigned long		base;
-	int			irq;
-	unsigned char		port_count;
-	unsigned short		status;
-	unsigned short		port_status; /* each bit for each port */
-	unsigned short		shift_count;
-	struct isi_port		*ports;
-	signed char		count;
-	spinlock_t		card_lock; /* Card wide lock 11/5/00 -sameer */
-	unsigned long		flags;
-	unsigned int		index;
-};
-
-struct	isi_port {
-	unsigned short		magic;
-	struct tty_port		port;
-	u16			channel;
-	u16			status;
-	struct isi_board	*card;
-	unsigned char		*xmit_buf;
-	int			xmit_head;
-	int			xmit_tail;
-	int			xmit_cnt;
-};
-
-static struct isi_board isi_card[BOARD_COUNT];
-static struct isi_port  isi_ports[PORT_COUNT];
-
-/*
- *	Locking functions for card level locking. We need to own both
- *	the kernel lock for the card and have the card in a position that
- *	it wants to talk.
- */
-
-static inline int WaitTillCardIsFree(unsigned long base)
-{
-	unsigned int count = 0;
-	unsigned int a = in_atomic(); /* do we run under spinlock? */
-
-	while (!(inw(base + 0xe) & 0x1) && count++ < 100)
-		if (a)
-			mdelay(1);
-		else
-			msleep(1);
-
-	return !(inw(base + 0xe) & 0x1);
-}
-
-static int lock_card(struct isi_board *card)
-{
-	unsigned long base = card->base;
-	unsigned int retries, a;
-
-	for (retries = 0; retries < 10; retries++) {
-		spin_lock_irqsave(&card->card_lock, card->flags);
-		for (a = 0; a < 10; a++) {
-			if (inw(base + 0xe) & 0x1)
-				return 1;
-			udelay(10);
-		}
-		spin_unlock_irqrestore(&card->card_lock, card->flags);
-		msleep(10);
-	}
-	pr_warning("Failed to lock Card (0x%lx)\n", card->base);
-
-	return 0;	/* Failed to acquire the card! */
-}
-
-static void unlock_card(struct isi_board *card)
-{
-	spin_unlock_irqrestore(&card->card_lock, card->flags);
-}
-
-/*
- *  ISI Card specific ops ...
- */
-
-/* card->lock HAS to be held */
-static void raise_dtr(struct isi_port *port)
-{
-	struct isi_board *card = port->card;
-	unsigned long base = card->base;
-	u16 channel = port->channel;
-
-	if (WaitTillCardIsFree(base))
-		return;
-
-	outw(0x8000 | (channel << card->shift_count) | 0x02, base);
-	outw(0x0504, base);
-	InterruptTheCard(base);
-	port->status |= ISI_DTR;
-}
-
-/* card->lock HAS to be held */
-static inline void drop_dtr(struct isi_port *port)
-{
-	struct isi_board *card = port->card;
-	unsigned long base = card->base;
-	u16 channel = port->channel;
-
-	if (WaitTillCardIsFree(base))
-		return;
-
-	outw(0x8000 | (channel << card->shift_count) | 0x02, base);
-	outw(0x0404, base);
-	InterruptTheCard(base);
-	port->status &= ~ISI_DTR;
-}
-
-/* card->lock HAS to be held */
-static inline void raise_rts(struct isi_port *port)
-{
-	struct isi_board *card = port->card;
-	unsigned long base = card->base;
-	u16 channel = port->channel;
-
-	if (WaitTillCardIsFree(base))
-		return;
-
-	outw(0x8000 | (channel << card->shift_count) | 0x02, base);
-	outw(0x0a04, base);
-	InterruptTheCard(base);
-	port->status |= ISI_RTS;
-}
-
-/* card->lock HAS to be held */
-static inline void drop_rts(struct isi_port *port)
-{
-	struct isi_board *card = port->card;
-	unsigned long base = card->base;
-	u16 channel = port->channel;
-
-	if (WaitTillCardIsFree(base))
-		return;
-
-	outw(0x8000 | (channel << card->shift_count) | 0x02, base);
-	outw(0x0804, base);
-	InterruptTheCard(base);
-	port->status &= ~ISI_RTS;
-}
-
-/* card->lock MUST NOT be held */
-
-static void isicom_dtr_rts(struct tty_port *port, int on)
-{
-	struct isi_port *ip = container_of(port, struct isi_port, port);
-	struct isi_board *card = ip->card;
-	unsigned long base = card->base;
-	u16 channel = ip->channel;
-
-	if (!lock_card(card))
-		return;
-
-	if (on) {
-		outw(0x8000 | (channel << card->shift_count) | 0x02, base);
-		outw(0x0f04, base);
-		InterruptTheCard(base);
-		ip->status |= (ISI_DTR | ISI_RTS);
-	} else {
-		outw(0x8000 | (channel << card->shift_count) | 0x02, base);
-		outw(0x0C04, base);
-		InterruptTheCard(base);
-		ip->status &= ~(ISI_DTR | ISI_RTS);
-	}
-	unlock_card(card);
-}
-
-/* card->lock HAS to be held */
-static void drop_dtr_rts(struct isi_port *port)
-{
-	struct isi_board *card = port->card;
-	unsigned long base = card->base;
-	u16 channel = port->channel;
-
-	if (WaitTillCardIsFree(base))
-		return;
-
-	outw(0x8000 | (channel << card->shift_count) | 0x02, base);
-	outw(0x0c04, base);
-	InterruptTheCard(base);
-	port->status &= ~(ISI_RTS | ISI_DTR);
-}
-
-/*
- *	ISICOM Driver specific routines ...
- *
- */
-
-static inline int __isicom_paranoia_check(struct isi_port const *port,
-	char *name, const char *routine)
-{
-	if (!port) {
-		pr_warning("Warning: bad isicom magic for dev %s in %s.\n",
-			   name, routine);
-		return 1;
-	}
-	if (port->magic != ISICOM_MAGIC) {
-		pr_warning("Warning: NULL isicom port for dev %s in %s.\n",
-			   name, routine);
-		return 1;
-	}
-
-	return 0;
-}
-
-/*
- *	Transmitter.
- *
- *	We shovel data into the card buffers on a regular basis. The card
- *	will do the rest of the work for us.
- */
-
-static void isicom_tx(unsigned long _data)
-{
-	unsigned long flags, base;
-	unsigned int retries;
-	short count = (BOARD_COUNT-1), card;
-	short txcount, wrd, residue, word_count, cnt;
-	struct isi_port *port;
-	struct tty_struct *tty;
-
-	/*	find next active board	*/
-	card = (prev_card + 1) & 0x0003;
-	while (count-- > 0) {
-		if (isi_card[card].status & BOARD_ACTIVE)
-			break;
-		card = (card + 1) & 0x0003;
-	}
-	if (!(isi_card[card].status & BOARD_ACTIVE))
-		goto sched_again;
-
-	prev_card = card;
-
-	count = isi_card[card].port_count;
-	port = isi_card[card].ports;
-	base = isi_card[card].base;
-
-	spin_lock_irqsave(&isi_card[card].card_lock, flags);
-	for (retries = 0; retries < 100; retries++) {
-		if (inw(base + 0xe) & 0x1)
-			break;
-		udelay(2);
-	}
-	if (retries >= 100)
-		goto unlock;
-
-	tty = tty_port_tty_get(&port->port);
-	if (tty == NULL)
-		goto put_unlock;
-
-	for (; count > 0; count--, port++) {
-		/* port not active or tx disabled to force flow control */
-		if (!(port->port.flags & ASYNC_INITIALIZED) ||
-				!(port->status & ISI_TXOK))
-			continue;
-
-		txcount = min_t(short, TX_SIZE, port->xmit_cnt);
-		if (txcount <= 0 || tty->stopped || tty->hw_stopped)
-			continue;
-
-		if (!(inw(base + 0x02) & (1 << port->channel)))
-			continue;
-
-		pr_debug("txing %d bytes, port%d.\n",
-			 txcount, port->channel + 1);
-		outw((port->channel << isi_card[card].shift_count) | txcount,
-			base);
-		residue = NO;
-		wrd = 0;
-		while (1) {
-			cnt = min_t(int, txcount, (SERIAL_XMIT_SIZE
-					- port->xmit_tail));
-			if (residue == YES) {
-				residue = NO;
-				if (cnt > 0) {
-					wrd |= (port->port.xmit_buf[port->xmit_tail]
-									<< 8);
-					port->xmit_tail = (port->xmit_tail + 1)
-						& (SERIAL_XMIT_SIZE - 1);
-					port->xmit_cnt--;
-					txcount--;
-					cnt--;
-					outw(wrd, base);
-				} else {
-					outw(wrd, base);
-					break;
-				}
-			}
-			if (cnt <= 0)
-				break;
-			word_count = cnt >> 1;
-			outsw(base, port->port.xmit_buf+port->xmit_tail, word_count);
-			port->xmit_tail = (port->xmit_tail
-				+ (word_count << 1)) & (SERIAL_XMIT_SIZE - 1);
-			txcount -= (word_count << 1);
-			port->xmit_cnt -= (word_count << 1);
-			if (cnt & 0x0001) {
-				residue = YES;
-				wrd = port->port.xmit_buf[port->xmit_tail];
-				port->xmit_tail = (port->xmit_tail + 1)
-					& (SERIAL_XMIT_SIZE - 1);
-				port->xmit_cnt--;
-				txcount--;
-			}
-		}
-
-		InterruptTheCard(base);
-		if (port->xmit_cnt <= 0)
-			port->status &= ~ISI_TXOK;
-		if (port->xmit_cnt <= WAKEUP_CHARS)
-			tty_wakeup(tty);
-	}
-
-put_unlock:
-	tty_kref_put(tty);
-unlock:
-	spin_unlock_irqrestore(&isi_card[card].card_lock, flags);
-	/*	schedule another tx for hopefully in about 10ms	*/
-sched_again:
-	mod_timer(&tx, jiffies + msecs_to_jiffies(10));
-}
-
-/*
- *	Main interrupt handler routine
- */
-
-static irqreturn_t isicom_interrupt(int irq, void *dev_id)
-{
-	struct isi_board *card = dev_id;
-	struct isi_port *port;
-	struct tty_struct *tty;
-	unsigned long base;
-	u16 header, word_count, count, channel;
-	short byte_count;
-	unsigned char *rp;
-
-	if (!card || !(card->status & FIRMWARE_LOADED))
-		return IRQ_NONE;
-
-	base = card->base;
-
-	/* did the card interrupt us? */
-	if (!(inw(base + 0x0e) & 0x02))
-		return IRQ_NONE;
-
-	spin_lock(&card->card_lock);
-
-	/*
-	 * disable any interrupts from the PCI card and lower the
-	 * interrupt line
-	 */
-	outw(0x8000, base+0x04);
-	ClearInterrupt(base);
-
-	inw(base);		/* get the dummy word out */
-	header = inw(base);
-	channel = (header & 0x7800) >> card->shift_count;
-	byte_count = header & 0xff;
-
-	if (channel + 1 > card->port_count) {
-		pr_warning("%s(0x%lx): %d(channel) > port_count.\n",
-			   __func__, base, channel+1);
-		outw(0x0000, base+0x04); /* enable interrupts */
-		spin_unlock(&card->card_lock);
-		return IRQ_HANDLED;
-	}
-	port = card->ports + channel;
-	if (!(port->port.flags & ASYNC_INITIALIZED)) {
-		outw(0x0000, base+0x04); /* enable interrupts */
-		spin_unlock(&card->card_lock);
-		return IRQ_HANDLED;
-	}
-
-	tty = tty_port_tty_get(&port->port);
-	if (tty == NULL) {
-		word_count = byte_count >> 1;
-		while (byte_count > 1) {
-			inw(base);
-			byte_count -= 2;
-		}
-		if (byte_count & 0x01)
-			inw(base);
-		outw(0x0000, base+0x04); /* enable interrupts */
-		spin_unlock(&card->card_lock);
-		return IRQ_HANDLED;
-	}
-
-	if (header & 0x8000) {		/* Status Packet */
-		header = inw(base);
-		switch (header & 0xff) {
-		case 0:	/* Change in EIA signals */
-			if (port->port.flags & ASYNC_CHECK_CD) {
-				if (port->status & ISI_DCD) {
-					if (!(header & ISI_DCD)) {
-					/* Carrier has been lost  */
-						pr_debug("%s: DCD->low.\n",
-							 __func__);
-						port->status &= ~ISI_DCD;
-						tty_hangup(tty);
-					}
-				} else if (header & ISI_DCD) {
-				/* Carrier has been detected */
-					pr_debug("%s: DCD->high.\n",
-						__func__);
-					port->status |= ISI_DCD;
-					wake_up_interruptible(&port->port.open_wait);
-				}
-			} else {
-				if (header & ISI_DCD)
-					port->status |= ISI_DCD;
-				else
-					port->status &= ~ISI_DCD;
-			}
-
-			if (port->port.flags & ASYNC_CTS_FLOW) {
-				if (tty->hw_stopped) {
-					if (header & ISI_CTS) {
-						port->port.tty->hw_stopped = 0;
-						/* start tx ing */
-						port->status |= (ISI_TXOK
-							| ISI_CTS);
-						tty_wakeup(tty);
-					}
-				} else if (!(header & ISI_CTS)) {
-					tty->hw_stopped = 1;
-					/* stop tx ing */
-					port->status &= ~(ISI_TXOK | ISI_CTS);
-				}
-			} else {
-				if (header & ISI_CTS)
-					port->status |= ISI_CTS;
-				else
-					port->status &= ~ISI_CTS;
-			}
-
-			if (header & ISI_DSR)
-				port->status |= ISI_DSR;
-			else
-				port->status &= ~ISI_DSR;
-
-			if (header & ISI_RI)
-				port->status |= ISI_RI;
-			else
-				port->status &= ~ISI_RI;
-
-			break;
-
-		case 1:	/* Received Break !!! */
-			tty_insert_flip_char(tty, 0, TTY_BREAK);
-			if (port->port.flags & ASYNC_SAK)
-				do_SAK(tty);
-			tty_flip_buffer_push(tty);
-			break;
-
-		case 2:	/* Statistics		 */
-			pr_debug("%s: stats!!!\n", __func__);
-			break;
-
-		default:
-			pr_debug("%s: Unknown code in status packet.\n",
-				 __func__);
-			break;
-		}
-	} else {				/* Data   Packet */
-
-		count = tty_prepare_flip_string(tty, &rp, byte_count & ~1);
-		pr_debug("%s: Can rx %d of %d bytes.\n",
-			 __func__, count, byte_count);
-		word_count = count >> 1;
-		insw(base, rp, word_count);
-		byte_count -= (word_count << 1);
-		if (count & 0x0001) {
-			tty_insert_flip_char(tty,  inw(base) & 0xff,
-				TTY_NORMAL);
-			byte_count -= 2;
-		}
-		if (byte_count > 0) {
-			pr_debug("%s(0x%lx:%d): Flip buffer overflow! dropping bytes...\n",
-				 __func__, base, channel + 1);
-		/* drain out unread xtra data */
-		while (byte_count > 0) {
-				inw(base);
-				byte_count -= 2;
-			}
-		}
-		tty_flip_buffer_push(tty);
-	}
-	outw(0x0000, base+0x04); /* enable interrupts */
-	spin_unlock(&card->card_lock);
-	tty_kref_put(tty);
-
-	return IRQ_HANDLED;
-}
-
-static void isicom_config_port(struct tty_struct *tty)
-{
-	struct isi_port *port = tty->driver_data;
-	struct isi_board *card = port->card;
-	unsigned long baud;
-	unsigned long base = card->base;
-	u16 channel_setup, channel = port->channel,
-		shift_count = card->shift_count;
-	unsigned char flow_ctrl;
-
-	/* FIXME: Switch to new tty baud API */
-	baud = C_BAUD(tty);
-	if (baud & CBAUDEX) {
-		baud &= ~CBAUDEX;
-
-		/*  if CBAUDEX bit is on and the baud is set to either 50 or 75
-		 *  then the card is programmed for 57.6Kbps or 115Kbps
-		 *  respectively.
-		 */
-
-		/* 1,2,3,4 => 57.6, 115.2, 230, 460 kbps resp. */
-		if (baud < 1 || baud > 4)
-			tty->termios->c_cflag &= ~CBAUDEX;
-		else
-			baud += 15;
-	}
-	if (baud == 15) {
-
-		/*  the ASYNC_SPD_HI and ASYNC_SPD_VHI options are set
-		 *  by the set_serial_info ioctl ... this is done by
-		 *  the 'setserial' utility.
-		 */
-
-		if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
-			baud++; /*  57.6 Kbps */
-		if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
-			baud += 2; /*  115  Kbps */
-		if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
-			baud += 3; /* 230 kbps*/
-		if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
-			baud += 4; /* 460 kbps*/
-	}
-	if (linuxb_to_isib[baud] == -1) {
-		/* hang up */
-		drop_dtr(port);
-		return;
-	} else
-		raise_dtr(port);
-
-	if (WaitTillCardIsFree(base) == 0) {
-		outw(0x8000 | (channel << shift_count) | 0x03, base);
-		outw(linuxb_to_isib[baud] << 8 | 0x03, base);
-		channel_setup = 0;
-		switch (C_CSIZE(tty)) {
-		case CS5:
-			channel_setup |= ISICOM_CS5;
-			break;
-		case CS6:
-			channel_setup |= ISICOM_CS6;
-			break;
-		case CS7:
-			channel_setup |= ISICOM_CS7;
-			break;
-		case CS8:
-			channel_setup |= ISICOM_CS8;
-			break;
-		}
-
-		if (C_CSTOPB(tty))
-			channel_setup |= ISICOM_2SB;
-		if (C_PARENB(tty)) {
-			channel_setup |= ISICOM_EVPAR;
-			if (C_PARODD(tty))
-				channel_setup |= ISICOM_ODPAR;
-		}
-		outw(channel_setup, base);
-		InterruptTheCard(base);
-	}
-	if (C_CLOCAL(tty))
-		port->port.flags &= ~ASYNC_CHECK_CD;
-	else
-		port->port.flags |= ASYNC_CHECK_CD;
-
-	/* flow control settings ...*/
-	flow_ctrl = 0;
-	port->port.flags &= ~ASYNC_CTS_FLOW;
-	if (C_CRTSCTS(tty)) {
-		port->port.flags |= ASYNC_CTS_FLOW;
-		flow_ctrl |= ISICOM_CTSRTS;
-	}
-	if (I_IXON(tty))
-		flow_ctrl |= ISICOM_RESPOND_XONXOFF;
-	if (I_IXOFF(tty))
-		flow_ctrl |= ISICOM_INITIATE_XONXOFF;
-
-	if (WaitTillCardIsFree(base) == 0) {
-		outw(0x8000 | (channel << shift_count) | 0x04, base);
-		outw(flow_ctrl << 8 | 0x05, base);
-		outw((STOP_CHAR(tty)) << 8 | (START_CHAR(tty)), base);
-		InterruptTheCard(base);
-	}
-
-	/*	rx enabled -> enable port for rx on the card	*/
-	if (C_CREAD(tty)) {
-		card->port_status |= (1 << channel);
-		outw(card->port_status, base + 0x02);
-	}
-}
-
-/* open et all */
-
-static inline void isicom_setup_board(struct isi_board *bp)
-{
-	int channel;
-	struct isi_port *port;
-
-	bp->count++;
-	if (!(bp->status & BOARD_INIT)) {
-		port = bp->ports;
-		for (channel = 0; channel < bp->port_count; channel++, port++)
-			drop_dtr_rts(port);
-	}
-	bp->status |= BOARD_ACTIVE | BOARD_INIT;
-}
-
-/* Activate and thus setup board are protected from races against shutdown
-   by the tty_port mutex */
-
-static int isicom_activate(struct tty_port *tport, struct tty_struct *tty)
-{
-	struct isi_port *port = container_of(tport, struct isi_port, port);
-	struct isi_board *card = port->card;
-	unsigned long flags;
-
-	if (tty_port_alloc_xmit_buf(tport) < 0)
-		return -ENOMEM;
-
-	spin_lock_irqsave(&card->card_lock, flags);
-	isicom_setup_board(card);
-
-	port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
-
-	/*	discard any residual data	*/
-	if (WaitTillCardIsFree(card->base) == 0) {
-		outw(0x8000 | (port->channel << card->shift_count) | 0x02,
-				card->base);
-		outw(((ISICOM_KILLTX | ISICOM_KILLRX) << 8) | 0x06, card->base);
-		InterruptTheCard(card->base);
-	}
-	isicom_config_port(tty);
-	spin_unlock_irqrestore(&card->card_lock, flags);
-
-	return 0;
-}
-
-static int isicom_carrier_raised(struct tty_port *port)
-{
-	struct isi_port *ip = container_of(port, struct isi_port, port);
-	return (ip->status & ISI_DCD)?1 : 0;
-}
-
-static struct tty_port *isicom_find_port(struct tty_struct *tty)
-{
-	struct isi_port *port;
-	struct isi_board *card;
-	unsigned int board;
-	int line = tty->index;
-
-	if (line < 0 || line > PORT_COUNT-1)
-		return NULL;
-	board = BOARD(line);
-	card = &isi_card[board];
-
-	if (!(card->status & FIRMWARE_LOADED))
-		return NULL;
-
-	/*  open on a port greater than the port count for the card !!! */
-	if (line > ((board * 16) + card->port_count - 1))
-		return NULL;
-
-	port = &isi_ports[line];
-	if (isicom_paranoia_check(port, tty->name, "isicom_open"))
-		return NULL;
-
-	return &port->port;
-}
-
-static int isicom_open(struct tty_struct *tty, struct file *filp)
-{
-	struct isi_port *port;
-	struct tty_port *tport;
-
-	tport = isicom_find_port(tty);
-	if (tport == NULL)
-		return -ENODEV;
-	port = container_of(tport, struct isi_port, port);
-
-	tty->driver_data = port;
-	return tty_port_open(tport, tty, filp);
-}
-
-/* close et all */
-
-/* card->lock HAS to be held */
-static void isicom_shutdown_port(struct isi_port *port)
-{
-	struct isi_board *card = port->card;
-
-	if (--card->count < 0) {
-		pr_debug("%s: bad board(0x%lx) count %d.\n",
-			 __func__, card->base, card->count);
-		card->count = 0;
-	}
-	/* last port was closed, shutdown that board too */
-	if (!card->count)
-		card->status &= BOARD_ACTIVE;
-}
-
-static void isicom_flush_buffer(struct tty_struct *tty)
-{
-	struct isi_port *port = tty->driver_data;
-	struct isi_board *card = port->card;
-	unsigned long flags;
-
-	if (isicom_paranoia_check(port, tty->name, "isicom_flush_buffer"))
-		return;
-
-	spin_lock_irqsave(&card->card_lock, flags);
-	port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
-	spin_unlock_irqrestore(&card->card_lock, flags);
-
-	tty_wakeup(tty);
-}
-
-static void isicom_shutdown(struct tty_port *port)
-{
-	struct isi_port *ip = container_of(port, struct isi_port, port);
-	struct isi_board *card = ip->card;
-	unsigned long flags;
-
-	/* indicate to the card that no more data can be received
-	   on this port */
-	spin_lock_irqsave(&card->card_lock, flags);
-	card->port_status &= ~(1 << ip->channel);
-	outw(card->port_status, card->base + 0x02);
-	isicom_shutdown_port(ip);
-	spin_unlock_irqrestore(&card->card_lock, flags);
-	tty_port_free_xmit_buf(port);
-}
-
-static void isicom_close(struct tty_struct *tty, struct file *filp)
-{
-	struct isi_port *ip = tty->driver_data;
-	struct tty_port *port;
-
-	if (ip == NULL)
-		return;
-
-	port = &ip->port;
-	if (isicom_paranoia_check(ip, tty->name, "isicom_close"))
-		return;
-	tty_port_close(port, tty, filp);
-}
-
-/* write et all */
-static int isicom_write(struct tty_struct *tty,	const unsigned char *buf,
-	int count)
-{
-	struct isi_port *port = tty->driver_data;
-	struct isi_board *card = port->card;
-	unsigned long flags;
-	int cnt, total = 0;
-
-	if (isicom_paranoia_check(port, tty->name, "isicom_write"))
-		return 0;
-
-	spin_lock_irqsave(&card->card_lock, flags);
-
-	while (1) {
-		cnt = min_t(int, count, min(SERIAL_XMIT_SIZE - port->xmit_cnt
-				- 1, SERIAL_XMIT_SIZE - port->xmit_head));
-		if (cnt <= 0)
-			break;
-
-		memcpy(port->port.xmit_buf + port->xmit_head, buf, cnt);
-		port->xmit_head = (port->xmit_head + cnt) & (SERIAL_XMIT_SIZE
-			- 1);
-		port->xmit_cnt += cnt;
-		buf += cnt;
-		count -= cnt;
-		total += cnt;
-	}
-	if (port->xmit_cnt && !tty->stopped && !tty->hw_stopped)
-		port->status |= ISI_TXOK;
-	spin_unlock_irqrestore(&card->card_lock, flags);
-	return total;
-}
-
-/* put_char et all */
-static int isicom_put_char(struct tty_struct *tty, unsigned char ch)
-{
-	struct isi_port *port = tty->driver_data;
-	struct isi_board *card = port->card;
-	unsigned long flags;
-
-	if (isicom_paranoia_check(port, tty->name, "isicom_put_char"))
-		return 0;
-
-	spin_lock_irqsave(&card->card_lock, flags);
-	if (port->xmit_cnt >= SERIAL_XMIT_SIZE - 1) {
-		spin_unlock_irqrestore(&card->card_lock, flags);
-		return 0;
-	}
-
-	port->port.xmit_buf[port->xmit_head++] = ch;
-	port->xmit_head &= (SERIAL_XMIT_SIZE - 1);
-	port->xmit_cnt++;
-	spin_unlock_irqrestore(&card->card_lock, flags);
-	return 1;
-}
-
-/* flush_chars et all */
-static void isicom_flush_chars(struct tty_struct *tty)
-{
-	struct isi_port *port = tty->driver_data;
-
-	if (isicom_paranoia_check(port, tty->name, "isicom_flush_chars"))
-		return;
-
-	if (port->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped ||
-			!port->port.xmit_buf)
-		return;
-
-	/* this tells the transmitter to consider this port for
-	   data output to the card ... that's the best we can do. */
-	port->status |= ISI_TXOK;
-}
-
-/* write_room et all */
-static int isicom_write_room(struct tty_struct *tty)
-{
-	struct isi_port *port = tty->driver_data;
-	int free;
-
-	if (isicom_paranoia_check(port, tty->name, "isicom_write_room"))
-		return 0;
-
-	free = SERIAL_XMIT_SIZE - port->xmit_cnt - 1;
-	if (free < 0)
-		free = 0;
-	return free;
-}
-
-/* chars_in_buffer et all */
-static int isicom_chars_in_buffer(struct tty_struct *tty)
-{
-	struct isi_port *port = tty->driver_data;
-	if (isicom_paranoia_check(port, tty->name, "isicom_chars_in_buffer"))
-		return 0;
-	return port->xmit_cnt;
-}
-
-/* ioctl et all */
-static int isicom_send_break(struct tty_struct *tty, int length)
-{
-	struct isi_port *port = tty->driver_data;
-	struct isi_board *card = port->card;
-	unsigned long base = card->base;
-
-	if (length == -1)
-		return -EOPNOTSUPP;
-
-	if (!lock_card(card))
-		return -EINVAL;
-
-	outw(0x8000 | ((port->channel) << (card->shift_count)) | 0x3, base);
-	outw((length & 0xff) << 8 | 0x00, base);
-	outw((length & 0xff00), base);
-	InterruptTheCard(base);
-
-	unlock_card(card);
-	return 0;
-}
-
-static int isicom_tiocmget(struct tty_struct *tty)
-{
-	struct isi_port *port = tty->driver_data;
-	/* just send the port status */
-	u16 status = port->status;
-
-	if (isicom_paranoia_check(port, tty->name, "isicom_ioctl"))
-		return -ENODEV;
-
-	return  ((status & ISI_RTS) ? TIOCM_RTS : 0) |
-		((status & ISI_DTR) ? TIOCM_DTR : 0) |
-		((status & ISI_DCD) ? TIOCM_CAR : 0) |
-		((status & ISI_DSR) ? TIOCM_DSR : 0) |
-		((status & ISI_CTS) ? TIOCM_CTS : 0) |
-		((status & ISI_RI ) ? TIOCM_RI  : 0);
-}
-
-static int isicom_tiocmset(struct tty_struct *tty,
-					unsigned int set, unsigned int clear)
-{
-	struct isi_port *port = tty->driver_data;
-	unsigned long flags;
-
-	if (isicom_paranoia_check(port, tty->name, "isicom_ioctl"))
-		return -ENODEV;
-
-	spin_lock_irqsave(&port->card->card_lock, flags);
-	if (set & TIOCM_RTS)
-		raise_rts(port);
-	if (set & TIOCM_DTR)
-		raise_dtr(port);
-
-	if (clear & TIOCM_RTS)
-		drop_rts(port);
-	if (clear & TIOCM_DTR)
-		drop_dtr(port);
-	spin_unlock_irqrestore(&port->card->card_lock, flags);
-
-	return 0;
-}
-
-static int isicom_set_serial_info(struct tty_struct *tty,
-					struct serial_struct __user *info)
-{
-	struct isi_port *port = tty->driver_data;
-	struct serial_struct newinfo;
-	int reconfig_port;
-
-	if (copy_from_user(&newinfo, info, sizeof(newinfo)))
-		return -EFAULT;
-
-	mutex_lock(&port->port.mutex);
-	reconfig_port = ((port->port.flags & ASYNC_SPD_MASK) !=
-		(newinfo.flags & ASYNC_SPD_MASK));
-
-	if (!capable(CAP_SYS_ADMIN)) {
-		if ((newinfo.close_delay != port->port.close_delay) ||
-				(newinfo.closing_wait != port->port.closing_wait) ||
-				((newinfo.flags & ~ASYNC_USR_MASK) !=
-				(port->port.flags & ~ASYNC_USR_MASK))) {
-			mutex_unlock(&port->port.mutex);
-			return -EPERM;
-		}
-		port->port.flags = ((port->port.flags & ~ASYNC_USR_MASK) |
-				(newinfo.flags & ASYNC_USR_MASK));
-	} else {
-		port->port.close_delay = newinfo.close_delay;
-		port->port.closing_wait = newinfo.closing_wait;
-		port->port.flags = ((port->port.flags & ~ASYNC_FLAGS) |
-				(newinfo.flags & ASYNC_FLAGS));
-	}
-	if (reconfig_port) {
-		unsigned long flags;
-		spin_lock_irqsave(&port->card->card_lock, flags);
-		isicom_config_port(tty);
-		spin_unlock_irqrestore(&port->card->card_lock, flags);
-	}
-	mutex_unlock(&port->port.mutex);
-	return 0;
-}
-
-static int isicom_get_serial_info(struct isi_port *port,
-	struct serial_struct __user *info)
-{
-	struct serial_struct out_info;
-
-	mutex_lock(&port->port.mutex);
-	memset(&out_info, 0, sizeof(out_info));
-/*	out_info.type = ? */
-	out_info.line = port - isi_ports;
-	out_info.port = port->card->base;
-	out_info.irq = port->card->irq;
-	out_info.flags = port->port.flags;
-/*	out_info.baud_base = ? */
-	out_info.close_delay = port->port.close_delay;
-	out_info.closing_wait = port->port.closing_wait;
-	mutex_unlock(&port->port.mutex);
-	if (copy_to_user(info, &out_info, sizeof(out_info)))
-		return -EFAULT;
-	return 0;
-}
-
-static int isicom_ioctl(struct tty_struct *tty,
-	unsigned int cmd, unsigned long arg)
-{
-	struct isi_port *port = tty->driver_data;
-	void __user *argp = (void __user *)arg;
-
-	if (isicom_paranoia_check(port, tty->name, "isicom_ioctl"))
-		return -ENODEV;
-
-	switch (cmd) {
-	case TIOCGSERIAL:
-		return isicom_get_serial_info(port, argp);
-
-	case TIOCSSERIAL:
-		return isicom_set_serial_info(tty, argp);
-
-	default:
-		return -ENOIOCTLCMD;
-	}
-	return 0;
-}
-
-/* set_termios et all */
-static void isicom_set_termios(struct tty_struct *tty,
-	struct ktermios *old_termios)
-{
-	struct isi_port *port = tty->driver_data;
-	unsigned long flags;
-
-	if (isicom_paranoia_check(port, tty->name, "isicom_set_termios"))
-		return;
-
-	if (tty->termios->c_cflag == old_termios->c_cflag &&
-			tty->termios->c_iflag == old_termios->c_iflag)
-		return;
-
-	spin_lock_irqsave(&port->card->card_lock, flags);
-	isicom_config_port(tty);
-	spin_unlock_irqrestore(&port->card->card_lock, flags);
-
-	if ((old_termios->c_cflag & CRTSCTS) &&
-			!(tty->termios->c_cflag & CRTSCTS)) {
-		tty->hw_stopped = 0;
-		isicom_start(tty);
-	}
-}
-
-/* throttle et all */
-static void isicom_throttle(struct tty_struct *tty)
-{
-	struct isi_port *port = tty->driver_data;
-	struct isi_board *card = port->card;
-
-	if (isicom_paranoia_check(port, tty->name, "isicom_throttle"))
-		return;
-
-	/* tell the card that this port cannot handle any more data for now */
-	card->port_status &= ~(1 << port->channel);
-	outw(card->port_status, card->base + 0x02);
-}
-
-/* unthrottle et all */
-static void isicom_unthrottle(struct tty_struct *tty)
-{
-	struct isi_port *port = tty->driver_data;
-	struct isi_board *card = port->card;
-
-	if (isicom_paranoia_check(port, tty->name, "isicom_unthrottle"))
-		return;
-
-	/* tell the card that this port is ready to accept more data */
-	card->port_status |= (1 << port->channel);
-	outw(card->port_status, card->base + 0x02);
-}
-
-/* stop et all */
-static void isicom_stop(struct tty_struct *tty)
-{
-	struct isi_port *port = tty->driver_data;
-
-	if (isicom_paranoia_check(port, tty->name, "isicom_stop"))
-		return;
-
-	/* this tells the transmitter not to consider this port for
-	   data output to the card. */
-	port->status &= ~ISI_TXOK;
-}
-
-/* start et all */
-static void isicom_start(struct tty_struct *tty)
-{
-	struct isi_port *port = tty->driver_data;
-
-	if (isicom_paranoia_check(port, tty->name, "isicom_start"))
-		return;
-
-	/* this tells the transmitter to consider this port for
-	   data output to the card. */
-	port->status |= ISI_TXOK;
-}
-
-static void isicom_hangup(struct tty_struct *tty)
-{
-	struct isi_port *port = tty->driver_data;
-
-	if (isicom_paranoia_check(port, tty->name, "isicom_hangup"))
-		return;
-	tty_port_hangup(&port->port);
-}
-
-
-/*
- * Driver init and deinit functions
- */
-
-static const struct tty_operations isicom_ops = {
-	.open			= isicom_open,
-	.close			= isicom_close,
-	.write			= isicom_write,
-	.put_char		= isicom_put_char,
-	.flush_chars		= isicom_flush_chars,
-	.write_room		= isicom_write_room,
-	.chars_in_buffer	= isicom_chars_in_buffer,
-	.ioctl			= isicom_ioctl,
-	.set_termios		= isicom_set_termios,
-	.throttle		= isicom_throttle,
-	.unthrottle		= isicom_unthrottle,
-	.stop			= isicom_stop,
-	.start			= isicom_start,
-	.hangup			= isicom_hangup,
-	.flush_buffer		= isicom_flush_buffer,
-	.tiocmget		= isicom_tiocmget,
-	.tiocmset		= isicom_tiocmset,
-	.break_ctl		= isicom_send_break,
-};
-
-static const struct tty_port_operations isicom_port_ops = {
-	.carrier_raised		= isicom_carrier_raised,
-	.dtr_rts		= isicom_dtr_rts,
-	.activate		= isicom_activate,
-	.shutdown		= isicom_shutdown,
-};
-
-static int __devinit reset_card(struct pci_dev *pdev,
-	const unsigned int card, unsigned int *signature)
-{
-	struct isi_board *board = pci_get_drvdata(pdev);
-	unsigned long base = board->base;
-	unsigned int sig, portcount = 0;
-	int retval = 0;
-
-	dev_dbg(&pdev->dev, "ISILoad:Resetting Card%d at 0x%lx\n", card + 1,
-		base);
-
-	inw(base + 0x8);
-
-	msleep(10);
-
-	outw(0, base + 0x8); /* Reset */
-
-	msleep(1000);
-
-	sig = inw(base + 0x4) & 0xff;
-
-	if (sig != 0xa5 && sig != 0xbb && sig != 0xcc && sig != 0xdd &&
-			sig != 0xee) {
-		dev_warn(&pdev->dev, "ISILoad:Card%u reset failure (Possible "
-			"bad I/O Port Address 0x%lx).\n", card + 1, base);
-		dev_dbg(&pdev->dev, "Sig=0x%x\n", sig);
-		retval = -EIO;
-		goto end;
-	}
-
-	msleep(10);
-
-	portcount = inw(base + 0x2);
-	if (!(inw(base + 0xe) & 0x1) || (portcount != 0 && portcount != 4 &&
-				portcount != 8 && portcount != 16)) {
-		dev_err(&pdev->dev, "ISILoad:PCI Card%d reset failure.\n",
-			card + 1);
-		retval = -EIO;
-		goto end;
-	}
-
-	switch (sig) {
-	case 0xa5:
-	case 0xbb:
-	case 0xdd:
-		board->port_count = (portcount == 4) ? 4 : 8;
-		board->shift_count = 12;
-		break;
-	case 0xcc:
-	case 0xee:
-		board->port_count = 16;
-		board->shift_count = 11;
-		break;
-	}
-	dev_info(&pdev->dev, "-Done\n");
-	*signature = sig;
-
-end:
-	return retval;
-}
-
-static int __devinit load_firmware(struct pci_dev *pdev,
-	const unsigned int index, const unsigned int signature)
-{
-	struct isi_board *board = pci_get_drvdata(pdev);
-	const struct firmware *fw;
-	unsigned long base = board->base;
-	unsigned int a;
-	u16 word_count, status;
-	int retval = -EIO;
-	char *name;
-	u8 *data;
-
-	struct stframe {
-		u16	addr;
-		u16	count;
-		u8	data[0];
-	} *frame;
-
-	switch (signature) {
-	case 0xa5:
-		name = "isi608.bin";
-		break;
-	case 0xbb:
-		name = "isi608em.bin";
-		break;
-	case 0xcc:
-		name = "isi616em.bin";
-		break;
-	case 0xdd:
-		name = "isi4608.bin";
-		break;
-	case 0xee:
-		name = "isi4616.bin";
-		break;
-	default:
-		dev_err(&pdev->dev, "Unknown signature.\n");
-		goto end;
-	}
-
-	retval = request_firmware(&fw, name, &pdev->dev);
-	if (retval)
-		goto end;
-
-	retval = -EIO;
-
-	for (frame = (struct stframe *)fw->data;
-			frame < (struct stframe *)(fw->data + fw->size);
-			frame = (struct stframe *)((u8 *)(frame + 1) +
-				frame->count)) {
-		if (WaitTillCardIsFree(base))
-			goto errrelfw;
-
-		outw(0xf0, base);	/* start upload sequence */
-		outw(0x00, base);
-		outw(frame->addr, base); /* lsb of address */
-
-		word_count = frame->count / 2 + frame->count % 2;
-		outw(word_count, base);
-		InterruptTheCard(base);
-
-		udelay(100); /* 0x2f */
-
-		if (WaitTillCardIsFree(base))
-			goto errrelfw;
-
-		status = inw(base + 0x4);
-		if (status != 0) {
-			dev_warn(&pdev->dev, "Card%d rejected load header:\n"
-				 "Address:0x%x\n"
-				 "Count:0x%x\n"
-				 "Status:0x%x\n",
-				 index + 1, frame->addr, frame->count, status);
-			goto errrelfw;
-		}
-		outsw(base, frame->data, word_count);
-
-		InterruptTheCard(base);
-
-		udelay(50); /* 0x0f */
-
-		if (WaitTillCardIsFree(base))
-			goto errrelfw;
-
-		status = inw(base + 0x4);
-		if (status != 0) {
-			dev_err(&pdev->dev, "Card%d got out of sync.Card "
-				"Status:0x%x\n", index + 1, status);
-			goto errrelfw;
-		}
-	}
-
-/* XXX: should we test it by reading it back and comparing with original like
- * in load firmware package? */
-	for (frame = (struct stframe *)fw->data;
-			frame < (struct stframe *)(fw->data + fw->size);
-			frame = (struct stframe *)((u8 *)(frame + 1) +
-				frame->count)) {
-		if (WaitTillCardIsFree(base))
-			goto errrelfw;
-
-		outw(0xf1, base); /* start download sequence */
-		outw(0x00, base);
-		outw(frame->addr, base); /* lsb of address */
-
-		word_count = (frame->count >> 1) + frame->count % 2;
-		outw(word_count + 1, base);
-		InterruptTheCard(base);
-
-		udelay(50); /* 0xf */
-
-		if (WaitTillCardIsFree(base))
-			goto errrelfw;
-
-		status = inw(base + 0x4);
-		if (status != 0) {
-			dev_warn(&pdev->dev, "Card%d rejected verify header:\n"
-				 "Address:0x%x\n"
-				 "Count:0x%x\n"
-				 "Status: 0x%x\n",
-				 index + 1, frame->addr, frame->count, status);
-			goto errrelfw;
-		}
-
-		data = kmalloc(word_count * 2, GFP_KERNEL);
-		if (data == NULL) {
-			dev_err(&pdev->dev, "Card%d, firmware upload "
-				"failed, not enough memory\n", index + 1);
-			goto errrelfw;
-		}
-		inw(base);
-		insw(base, data, word_count);
-		InterruptTheCard(base);
-
-		for (a = 0; a < frame->count; a++)
-			if (data[a] != frame->data[a]) {
-				kfree(data);
-				dev_err(&pdev->dev, "Card%d, firmware upload "
-					"failed\n", index + 1);
-				goto errrelfw;
-			}
-		kfree(data);
-
-		udelay(50); /* 0xf */
-
-		if (WaitTillCardIsFree(base))
-			goto errrelfw;
-
-		status = inw(base + 0x4);
-		if (status != 0) {
-			dev_err(&pdev->dev, "Card%d verify got out of sync. "
-				"Card Status:0x%x\n", index + 1, status);
-			goto errrelfw;
-		}
-	}
-
-	/* xfer ctrl */
-	if (WaitTillCardIsFree(base))
-		goto errrelfw;
-
-	outw(0xf2, base);
-	outw(0x800, base);
-	outw(0x0, base);
-	outw(0x0, base);
-	InterruptTheCard(base);
-	outw(0x0, base + 0x4); /* for ISI4608 cards */
-
-	board->status |= FIRMWARE_LOADED;
-	retval = 0;
-
-errrelfw:
-	release_firmware(fw);
-end:
-	return retval;
-}
-
-/*
- *	Insmod can set static symbols so keep these static
- */
-static unsigned int card_count;
-
-static int __devinit isicom_probe(struct pci_dev *pdev,
-	const struct pci_device_id *ent)
-{
-	unsigned int uninitialized_var(signature), index;
-	int retval = -EPERM;
-	struct isi_board *board = NULL;
-
-	if (card_count >= BOARD_COUNT)
-		goto err;
-
-	retval = pci_enable_device(pdev);
-	if (retval) {
-		dev_err(&pdev->dev, "failed to enable\n");
-		goto err;
-	}
-
-	dev_info(&pdev->dev, "ISI PCI Card(Device ID 0x%x)\n", ent->device);
-
-	/* allot the first empty slot in the array */
-	for (index = 0; index < BOARD_COUNT; index++) {
-		if (isi_card[index].base == 0) {
-			board = &isi_card[index];
-			break;
-		}
-	}
-	if (index == BOARD_COUNT) {
-		retval = -ENODEV;
-		goto err_disable;
-	}
-
-	board->index = index;
-	board->base = pci_resource_start(pdev, 3);
-	board->irq = pdev->irq;
-	card_count++;
-
-	pci_set_drvdata(pdev, board);
-
-	retval = pci_request_region(pdev, 3, ISICOM_NAME);
-	if (retval) {
-		dev_err(&pdev->dev, "I/O Region 0x%lx-0x%lx is busy. Card%d "
-			"will be disabled.\n", board->base, board->base + 15,
-			index + 1);
-		retval = -EBUSY;
-		goto errdec;
-	}
-
-	retval = request_irq(board->irq, isicom_interrupt,
-			IRQF_SHARED | IRQF_DISABLED, ISICOM_NAME, board);
-	if (retval < 0) {
-		dev_err(&pdev->dev, "Could not install handler at Irq %d. "
-			"Card%d will be disabled.\n", board->irq, index + 1);
-		goto errunrr;
-	}
-
-	retval = reset_card(pdev, index, &signature);
-	if (retval < 0)
-		goto errunri;
-
-	retval = load_firmware(pdev, index, signature);
-	if (retval < 0)
-		goto errunri;
-
-	for (index = 0; index < board->port_count; index++)
-		tty_register_device(isicom_normal, board->index * 16 + index,
-				&pdev->dev);
-
-	return 0;
-
-errunri:
-	free_irq(board->irq, board);
-errunrr:
-	pci_release_region(pdev, 3);
-errdec:
-	board->base = 0;
-	card_count--;
-err_disable:
-	pci_disable_device(pdev);
-err:
-	return retval;
-}
-
-static void __devexit isicom_remove(struct pci_dev *pdev)
-{
-	struct isi_board *board = pci_get_drvdata(pdev);
-	unsigned int i;
-
-	for (i = 0; i < board->port_count; i++)
-		tty_unregister_device(isicom_normal, board->index * 16 + i);
-
-	free_irq(board->irq, board);
-	pci_release_region(pdev, 3);
-	board->base = 0;
-	card_count--;
-	pci_disable_device(pdev);
-}
-
-static int __init isicom_init(void)
-{
-	int retval, idx, channel;
-	struct isi_port *port;
-
-	for (idx = 0; idx < BOARD_COUNT; idx++) {
-		port = &isi_ports[idx * 16];
-		isi_card[idx].ports = port;
-		spin_lock_init(&isi_card[idx].card_lock);
-		for (channel = 0; channel < 16; channel++, port++) {
-			tty_port_init(&port->port);
-			port->port.ops = &isicom_port_ops;
-			port->magic = ISICOM_MAGIC;
-			port->card = &isi_card[idx];
-			port->channel = channel;
-			port->port.close_delay = 50 * HZ/100;
-			port->port.closing_wait = 3000 * HZ/100;
-			port->status = 0;
-			/*  . . .  */
-		}
-		isi_card[idx].base = 0;
-		isi_card[idx].irq = 0;
-	}
-
-	/* tty driver structure initialization */
-	isicom_normal = alloc_tty_driver(PORT_COUNT);
-	if (!isicom_normal) {
-		retval = -ENOMEM;
-		goto error;
-	}
-
-	isicom_normal->owner			= THIS_MODULE;
-	isicom_normal->name 			= "ttyM";
-	isicom_normal->major			= ISICOM_NMAJOR;
-	isicom_normal->minor_start		= 0;
-	isicom_normal->type			= TTY_DRIVER_TYPE_SERIAL;
-	isicom_normal->subtype			= SERIAL_TYPE_NORMAL;
-	isicom_normal->init_termios		= tty_std_termios;
-	isicom_normal->init_termios.c_cflag	= B9600 | CS8 | CREAD | HUPCL |
-		CLOCAL;
-	isicom_normal->flags			= TTY_DRIVER_REAL_RAW |
-		TTY_DRIVER_DYNAMIC_DEV | TTY_DRIVER_HARDWARE_BREAK;
-	tty_set_operations(isicom_normal, &isicom_ops);
-
-	retval = tty_register_driver(isicom_normal);
-	if (retval) {
-		pr_debug("Couldn't register the dialin driver\n");
-		goto err_puttty;
-	}
-
-	retval = pci_register_driver(&isicom_driver);
-	if (retval < 0) {
-		pr_err("Unable to register pci driver.\n");
-		goto err_unrtty;
-	}
-
-	mod_timer(&tx, jiffies + 1);
-
-	return 0;
-err_unrtty:
-	tty_unregister_driver(isicom_normal);
-err_puttty:
-	put_tty_driver(isicom_normal);
-error:
-	return retval;
-}
-
-static void __exit isicom_exit(void)
-{
-	del_timer_sync(&tx);
-
-	pci_unregister_driver(&isicom_driver);
-	tty_unregister_driver(isicom_normal);
-	put_tty_driver(isicom_normal);
-}
-
-module_init(isicom_init);
-module_exit(isicom_exit);
-
-MODULE_AUTHOR("MultiTech");
-MODULE_DESCRIPTION("Driver for the ISI series of cards by MultiTech");
-MODULE_LICENSE("GPL");
-MODULE_FIRMWARE("isi608.bin");
-MODULE_FIRMWARE("isi608em.bin");
-MODULE_FIRMWARE("isi616em.bin");
-MODULE_FIRMWARE("isi4608.bin");
-MODULE_FIRMWARE("isi4616.bin");
diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c
deleted file mode 100644
index 35b0c38590e6..000000000000
--- a/drivers/char/moxa.c
+++ /dev/null
@@ -1,2092 +0,0 @@
-/*****************************************************************************/
-/*
- *           moxa.c  -- MOXA Intellio family multiport serial driver.
- *
- *      Copyright (C) 1999-2000  Moxa Technologies (support@moxa.com).
- *      Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com>
- *
- *      This code is loosely based on the Linux serial driver, written by
- *      Linus Torvalds, Theodore T'so and others.
- *
- *      This program is free software; you can redistribute it and/or modify
- *      it under the terms of the GNU General Public License as published by
- *      the Free Software Foundation; either version 2 of the License, or
- *      (at your option) any later version.
- */
-
-/*
- *    MOXA Intellio Series Driver
- *      for             : LINUX
- *      date            : 1999/1/7
- *      version         : 5.1
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/ioport.h>
-#include <linux/errno.h>
-#include <linux/firmware.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/major.h>
-#include <linux/string.h>
-#include <linux/fcntl.h>
-#include <linux/ptrace.h>
-#include <linux/serial.h>
-#include <linux/tty_driver.h>
-#include <linux/delay.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/bitops.h>
-#include <linux/slab.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-
-#include "moxa.h"
-
-#define MOXA_VERSION		"6.0k"
-
-#define MOXA_FW_HDRLEN		32
-
-#define MOXAMAJOR		172
-
-#define MAX_BOARDS		4	/* Don't change this value */
-#define MAX_PORTS_PER_BOARD	32	/* Don't change this value */
-#define MAX_PORTS		(MAX_BOARDS * MAX_PORTS_PER_BOARD)
-
-#define MOXA_IS_320(brd) ((brd)->boardType == MOXA_BOARD_C320_ISA || \
-		(brd)->boardType == MOXA_BOARD_C320_PCI)
-
-/*
- *    Define the Moxa PCI vendor and device IDs.
- */
-#define MOXA_BUS_TYPE_ISA	0
-#define MOXA_BUS_TYPE_PCI	1
-
-enum {
-	MOXA_BOARD_C218_PCI = 1,
-	MOXA_BOARD_C218_ISA,
-	MOXA_BOARD_C320_PCI,
-	MOXA_BOARD_C320_ISA,
-	MOXA_BOARD_CP204J,
-};
-
-static char *moxa_brdname[] =
-{
-	"C218 Turbo PCI series",
-	"C218 Turbo ISA series",
-	"C320 Turbo PCI series",
-	"C320 Turbo ISA series",
-	"CP-204J series",
-};
-
-#ifdef CONFIG_PCI
-static struct pci_device_id moxa_pcibrds[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C218),
-		.driver_data = MOXA_BOARD_C218_PCI },
-	{ PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C320),
-		.driver_data = MOXA_BOARD_C320_PCI },
-	{ PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP204J),
-		.driver_data = MOXA_BOARD_CP204J },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, moxa_pcibrds);
-#endif /* CONFIG_PCI */
-
-struct moxa_port;
-
-static struct moxa_board_conf {
-	int boardType;
-	int numPorts;
-	int busType;
-
-	unsigned int ready;
-
-	struct moxa_port *ports;
-
-	void __iomem *basemem;
-	void __iomem *intNdx;
-	void __iomem *intPend;
-	void __iomem *intTable;
-} moxa_boards[MAX_BOARDS];
-
-struct mxser_mstatus {
-	tcflag_t cflag;
-	int cts;
-	int dsr;
-	int ri;
-	int dcd;
-};
-
-struct moxaq_str {
-	int inq;
-	int outq;
-};
-
-struct moxa_port {
-	struct tty_port port;
-	struct moxa_board_conf *board;
-	void __iomem *tableAddr;
-
-	int type;
-	int cflag;
-	unsigned long statusflags;
-
-	u8 DCDState;		/* Protected by the port lock */
-	u8 lineCtrl;
-	u8 lowChkFlag;
-};
-
-struct mon_str {
-	int tick;
-	int rxcnt[MAX_PORTS];
-	int txcnt[MAX_PORTS];
-};
-
-/* statusflags */
-#define TXSTOPPED	1
-#define LOWWAIT 	2
-#define EMPTYWAIT	3
-
-#define SERIAL_DO_RESTART
-
-#define WAKEUP_CHARS		256
-
-static int ttymajor = MOXAMAJOR;
-static struct mon_str moxaLog;
-static unsigned int moxaFuncTout = HZ / 2;
-static unsigned int moxaLowWaterChk;
-static DEFINE_MUTEX(moxa_openlock);
-static DEFINE_SPINLOCK(moxa_lock);
-
-static unsigned long baseaddr[MAX_BOARDS];
-static unsigned int type[MAX_BOARDS];
-static unsigned int numports[MAX_BOARDS];
-
-MODULE_AUTHOR("William Chen");
-MODULE_DESCRIPTION("MOXA Intellio Family Multiport Board Device Driver");
-MODULE_LICENSE("GPL");
-MODULE_FIRMWARE("c218tunx.cod");
-MODULE_FIRMWARE("cp204unx.cod");
-MODULE_FIRMWARE("c320tunx.cod");
-
-module_param_array(type, uint, NULL, 0);
-MODULE_PARM_DESC(type, "card type: C218=2, C320=4");
-module_param_array(baseaddr, ulong, NULL, 0);
-MODULE_PARM_DESC(baseaddr, "base address");
-module_param_array(numports, uint, NULL, 0);
-MODULE_PARM_DESC(numports, "numports (ignored for C218)");
-
-module_param(ttymajor, int, 0);
-
-/*
- * static functions:
- */
-static int moxa_open(struct tty_struct *, struct file *);
-static void moxa_close(struct tty_struct *, struct file *);
-static int moxa_write(struct tty_struct *, const unsigned char *, int);
-static int moxa_write_room(struct tty_struct *);
-static void moxa_flush_buffer(struct tty_struct *);
-static int moxa_chars_in_buffer(struct tty_struct *);
-static void moxa_set_termios(struct tty_struct *, struct ktermios *);
-static void moxa_stop(struct tty_struct *);
-static void moxa_start(struct tty_struct *);
-static void moxa_hangup(struct tty_struct *);
-static int moxa_tiocmget(struct tty_struct *tty);
-static int moxa_tiocmset(struct tty_struct *tty,
-			 unsigned int set, unsigned int clear);
-static void moxa_poll(unsigned long);
-static void moxa_set_tty_param(struct tty_struct *, struct ktermios *);
-static void moxa_shutdown(struct tty_port *);
-static int moxa_carrier_raised(struct tty_port *);
-static void moxa_dtr_rts(struct tty_port *, int);
-/*
- * moxa board interface functions:
- */
-static void MoxaPortEnable(struct moxa_port *);
-static void MoxaPortDisable(struct moxa_port *);
-static int MoxaPortSetTermio(struct moxa_port *, struct ktermios *, speed_t);
-static int MoxaPortGetLineOut(struct moxa_port *, int *, int *);
-static void MoxaPortLineCtrl(struct moxa_port *, int, int);
-static void MoxaPortFlowCtrl(struct moxa_port *, int, int, int, int, int);
-static int MoxaPortLineStatus(struct moxa_port *);
-static void MoxaPortFlushData(struct moxa_port *, int);
-static int MoxaPortWriteData(struct tty_struct *, const unsigned char *, int);
-static int MoxaPortReadData(struct moxa_port *);
-static int MoxaPortTxQueue(struct moxa_port *);
-static int MoxaPortRxQueue(struct moxa_port *);
-static int MoxaPortTxFree(struct moxa_port *);
-static void MoxaPortTxDisable(struct moxa_port *);
-static void MoxaPortTxEnable(struct moxa_port *);
-static int moxa_get_serial_info(struct moxa_port *, struct serial_struct __user *);
-static int moxa_set_serial_info(struct moxa_port *, struct serial_struct __user *);
-static void MoxaSetFifo(struct moxa_port *port, int enable);
-
-/*
- * I/O functions
- */
-
-static DEFINE_SPINLOCK(moxafunc_lock);
-
-static void moxa_wait_finish(void __iomem *ofsAddr)
-{
-	unsigned long end = jiffies + moxaFuncTout;
-
-	while (readw(ofsAddr + FuncCode) != 0)
-		if (time_after(jiffies, end))
-			return;
-	if (readw(ofsAddr + FuncCode) != 0 && printk_ratelimit())
-		printk(KERN_WARNING "moxa function expired\n");
-}
-
-static void moxafunc(void __iomem *ofsAddr, u16 cmd, u16 arg)
-{
-        unsigned long flags;
-        spin_lock_irqsave(&moxafunc_lock, flags);
-	writew(arg, ofsAddr + FuncArg);
-	writew(cmd, ofsAddr + FuncCode);
-	moxa_wait_finish(ofsAddr);
-	spin_unlock_irqrestore(&moxafunc_lock, flags);
-}
-
-static int moxafuncret(void __iomem *ofsAddr, u16 cmd, u16 arg)
-{
-        unsigned long flags;
-        u16 ret;
-        spin_lock_irqsave(&moxafunc_lock, flags);
-	writew(arg, ofsAddr + FuncArg);
-	writew(cmd, ofsAddr + FuncCode);
-	moxa_wait_finish(ofsAddr);
-	ret = readw(ofsAddr + FuncArg);
-	spin_unlock_irqrestore(&moxafunc_lock, flags);
-	return ret;
-}
-
-static void moxa_low_water_check(void __iomem *ofsAddr)
-{
-	u16 rptr, wptr, mask, len;
-
-	if (readb(ofsAddr + FlagStat) & Xoff_state) {
-		rptr = readw(ofsAddr + RXrptr);
-		wptr = readw(ofsAddr + RXwptr);
-		mask = readw(ofsAddr + RX_mask);
-		len = (wptr - rptr) & mask;
-		if (len <= Low_water)
-			moxafunc(ofsAddr, FC_SendXon, 0);
-	}
-}
-
-/*
- * TTY operations
- */
-
-static int moxa_ioctl(struct tty_struct *tty,
-		      unsigned int cmd, unsigned long arg)
-{
-	struct moxa_port *ch = tty->driver_data;
-	void __user *argp = (void __user *)arg;
-	int status, ret = 0;
-
-	if (tty->index == MAX_PORTS) {
-		if (cmd != MOXA_GETDATACOUNT && cmd != MOXA_GET_IOQUEUE &&
-				cmd != MOXA_GETMSTATUS)
-			return -EINVAL;
-	} else if (!ch)
-		return -ENODEV;
-
-	switch (cmd) {
-	case MOXA_GETDATACOUNT:
-		moxaLog.tick = jiffies;
-		if (copy_to_user(argp, &moxaLog, sizeof(moxaLog)))
-			ret = -EFAULT;
-		break;
-	case MOXA_FLUSH_QUEUE:
-		MoxaPortFlushData(ch, arg);
-		break;
-	case MOXA_GET_IOQUEUE: {
-		struct moxaq_str __user *argm = argp;
-		struct moxaq_str tmp;
-		struct moxa_port *p;
-		unsigned int i, j;
-
-		for (i = 0; i < MAX_BOARDS; i++) {
-			p = moxa_boards[i].ports;
-			for (j = 0; j < MAX_PORTS_PER_BOARD; j++, p++, argm++) {
-				memset(&tmp, 0, sizeof(tmp));
-				spin_lock_bh(&moxa_lock);
-				if (moxa_boards[i].ready) {
-					tmp.inq = MoxaPortRxQueue(p);
-					tmp.outq = MoxaPortTxQueue(p);
-				}
-				spin_unlock_bh(&moxa_lock);
-				if (copy_to_user(argm, &tmp, sizeof(tmp)))
-					return -EFAULT;
-			}
-		}
-		break;
-	} case MOXA_GET_OQUEUE:
-		status = MoxaPortTxQueue(ch);
-		ret = put_user(status, (unsigned long __user *)argp);
-		break;
-	case MOXA_GET_IQUEUE:
-		status = MoxaPortRxQueue(ch);
-		ret = put_user(status, (unsigned long __user *)argp);
-		break;
-	case MOXA_GETMSTATUS: {
-		struct mxser_mstatus __user *argm = argp;
-		struct mxser_mstatus tmp;
-		struct moxa_port *p;
-		unsigned int i, j;
-
-		for (i = 0; i < MAX_BOARDS; i++) {
-			p = moxa_boards[i].ports;
-			for (j = 0; j < MAX_PORTS_PER_BOARD; j++, p++, argm++) {
-				struct tty_struct *ttyp;
-				memset(&tmp, 0, sizeof(tmp));
-				spin_lock_bh(&moxa_lock);
-				if (!moxa_boards[i].ready) {
-				        spin_unlock_bh(&moxa_lock);
-					goto copy;
-                                }
-
-				status = MoxaPortLineStatus(p);
-				spin_unlock_bh(&moxa_lock);
-
-				if (status & 1)
-					tmp.cts = 1;
-				if (status & 2)
-					tmp.dsr = 1;
-				if (status & 4)
-					tmp.dcd = 1;
-
-				ttyp = tty_port_tty_get(&p->port);
-				if (!ttyp || !ttyp->termios)
-					tmp.cflag = p->cflag;
-				else
-					tmp.cflag = ttyp->termios->c_cflag;
-				tty_kref_put(tty);
-copy:
-				if (copy_to_user(argm, &tmp, sizeof(tmp)))
-					return -EFAULT;
-			}
-		}
-		break;
-	}
-	case TIOCGSERIAL:
-	        mutex_lock(&ch->port.mutex);
-		ret = moxa_get_serial_info(ch, argp);
-		mutex_unlock(&ch->port.mutex);
-		break;
-	case TIOCSSERIAL:
-	        mutex_lock(&ch->port.mutex);
-		ret = moxa_set_serial_info(ch, argp);
-		mutex_unlock(&ch->port.mutex);
-		break;
-	default:
-		ret = -ENOIOCTLCMD;
-	}
-	return ret;
-}
-
-static int moxa_break_ctl(struct tty_struct *tty, int state)
-{
-	struct moxa_port *port = tty->driver_data;
-
-	moxafunc(port->tableAddr, state ? FC_SendBreak : FC_StopBreak,
-			Magic_code);
-	return 0;
-}
-
-static const struct tty_operations moxa_ops = {
-	.open = moxa_open,
-	.close = moxa_close,
-	.write = moxa_write,
-	.write_room = moxa_write_room,
-	.flush_buffer = moxa_flush_buffer,
-	.chars_in_buffer = moxa_chars_in_buffer,
-	.ioctl = moxa_ioctl,
-	.set_termios = moxa_set_termios,
-	.stop = moxa_stop,
-	.start = moxa_start,
-	.hangup = moxa_hangup,
-	.break_ctl = moxa_break_ctl,
-	.tiocmget = moxa_tiocmget,
-	.tiocmset = moxa_tiocmset,
-};
-
-static const struct tty_port_operations moxa_port_ops = {
-	.carrier_raised = moxa_carrier_raised,
-	.dtr_rts = moxa_dtr_rts,
-	.shutdown = moxa_shutdown,
-};
-
-static struct tty_driver *moxaDriver;
-static DEFINE_TIMER(moxaTimer, moxa_poll, 0, 0);
-
-/*
- * HW init
- */
-
-static int moxa_check_fw_model(struct moxa_board_conf *brd, u8 model)
-{
-	switch (brd->boardType) {
-	case MOXA_BOARD_C218_ISA:
-	case MOXA_BOARD_C218_PCI:
-		if (model != 1)
-			goto err;
-		break;
-	case MOXA_BOARD_CP204J:
-		if (model != 3)
-			goto err;
-		break;
-	default:
-		if (model != 2)
-			goto err;
-		break;
-	}
-	return 0;
-err:
-	return -EINVAL;
-}
-
-static int moxa_check_fw(const void *ptr)
-{
-	const __le16 *lptr = ptr;
-
-	if (*lptr != cpu_to_le16(0x7980))
-		return -EINVAL;
-
-	return 0;
-}
-
-static int moxa_load_bios(struct moxa_board_conf *brd, const u8 *buf,
-		size_t len)
-{
-	void __iomem *baseAddr = brd->basemem;
-	u16 tmp;
-
-	writeb(HW_reset, baseAddr + Control_reg);	/* reset */
-	msleep(10);
-	memset_io(baseAddr, 0, 4096);
-	memcpy_toio(baseAddr, buf, len);	/* download BIOS */
-	writeb(0, baseAddr + Control_reg);	/* restart */
-
-	msleep(2000);
-
-	switch (brd->boardType) {
-	case MOXA_BOARD_C218_ISA:
-	case MOXA_BOARD_C218_PCI:
-		tmp = readw(baseAddr + C218_key);
-		if (tmp != C218_KeyCode)
-			goto err;
-		break;
-	case MOXA_BOARD_CP204J:
-		tmp = readw(baseAddr + C218_key);
-		if (tmp != CP204J_KeyCode)
-			goto err;
-		break;
-	default:
-		tmp = readw(baseAddr + C320_key);
-		if (tmp != C320_KeyCode)
-			goto err;
-		tmp = readw(baseAddr + C320_status);
-		if (tmp != STS_init) {
-			printk(KERN_ERR "MOXA: bios upload failed -- CPU/Basic "
-					"module not found\n");
-			return -EIO;
-		}
-		break;
-	}
-
-	return 0;
-err:
-	printk(KERN_ERR "MOXA: bios upload failed -- board not found\n");
-	return -EIO;
-}
-
-static int moxa_load_320b(struct moxa_board_conf *brd, const u8 *ptr,
-		size_t len)
-{
-	void __iomem *baseAddr = brd->basemem;
-
-	if (len < 7168) {
-		printk(KERN_ERR "MOXA: invalid 320 bios -- too short\n");
-		return -EINVAL;
-	}
-
-	writew(len - 7168 - 2, baseAddr + C320bapi_len);
-	writeb(1, baseAddr + Control_reg);	/* Select Page 1 */
-	memcpy_toio(baseAddr + DynPage_addr, ptr, 7168);
-	writeb(2, baseAddr + Control_reg);	/* Select Page 2 */
-	memcpy_toio(baseAddr + DynPage_addr, ptr + 7168, len - 7168);
-
-	return 0;
-}
-
-static int moxa_real_load_code(struct moxa_board_conf *brd, const void *ptr,
-		size_t len)
-{
-	void __iomem *baseAddr = brd->basemem;
-	const __le16 *uptr = ptr;
-	size_t wlen, len2, j;
-	unsigned long key, loadbuf, loadlen, checksum, checksum_ok;
-	unsigned int i, retry;
-	u16 usum, keycode;
-
-	keycode = (brd->boardType == MOXA_BOARD_CP204J) ? CP204J_KeyCode :
-				C218_KeyCode;
-
-	switch (brd->boardType) {
-	case MOXA_BOARD_CP204J:
-	case MOXA_BOARD_C218_ISA:
-	case MOXA_BOARD_C218_PCI:
-		key = C218_key;
-		loadbuf = C218_LoadBuf;
-		loadlen = C218DLoad_len;
-		checksum = C218check_sum;
-		checksum_ok = C218chksum_ok;
-		break;
-	default:
-		key = C320_key;
-		keycode = C320_KeyCode;
-		loadbuf = C320_LoadBuf;
-		loadlen = C320DLoad_len;
-		checksum = C320check_sum;
-		checksum_ok = C320chksum_ok;
-		break;
-	}
-
-	usum = 0;
-	wlen = len >> 1;
-	for (i = 0; i < wlen; i++)
-		usum += le16_to_cpu(uptr[i]);
-	retry = 0;
-	do {
-		wlen = len >> 1;
-		j = 0;
-		while (wlen) {
-			len2 = (wlen > 2048) ? 2048 : wlen;
-			wlen -= len2;
-			memcpy_toio(baseAddr + loadbuf, ptr + j, len2 << 1);
-			j += len2 << 1;
-
-			writew(len2, baseAddr + loadlen);
-			writew(0, baseAddr + key);
-			for (i = 0; i < 100; i++) {
-				if (readw(baseAddr + key) == keycode)
-					break;
-				msleep(10);
-			}
-			if (readw(baseAddr + key) != keycode)
-				return -EIO;
-		}
-		writew(0, baseAddr + loadlen);
-		writew(usum, baseAddr + checksum);
-		writew(0, baseAddr + key);
-		for (i = 0; i < 100; i++) {
-			if (readw(baseAddr + key) == keycode)
-				break;
-			msleep(10);
-		}
-		retry++;
-	} while ((readb(baseAddr + checksum_ok) != 1) && (retry < 3));
-	if (readb(baseAddr + checksum_ok) != 1)
-		return -EIO;
-
-	writew(0, baseAddr + key);
-	for (i = 0; i < 600; i++) {
-		if (readw(baseAddr + Magic_no) == Magic_code)
-			break;
-		msleep(10);
-	}
-	if (readw(baseAddr + Magic_no) != Magic_code)
-		return -EIO;
-
-	if (MOXA_IS_320(brd)) {
-		if (brd->busType == MOXA_BUS_TYPE_PCI) {	/* ASIC board */
-			writew(0x3800, baseAddr + TMS320_PORT1);
-			writew(0x3900, baseAddr + TMS320_PORT2);
-			writew(28499, baseAddr + TMS320_CLOCK);
-		} else {
-			writew(0x3200, baseAddr + TMS320_PORT1);
-			writew(0x3400, baseAddr + TMS320_PORT2);
-			writew(19999, baseAddr + TMS320_CLOCK);
-		}
-	}
-	writew(1, baseAddr + Disable_IRQ);
-	writew(0, baseAddr + Magic_no);
-	for (i = 0; i < 500; i++) {
-		if (readw(baseAddr + Magic_no) == Magic_code)
-			break;
-		msleep(10);
-	}
-	if (readw(baseAddr + Magic_no) != Magic_code)
-		return -EIO;
-
-	if (MOXA_IS_320(brd)) {
-		j = readw(baseAddr + Module_cnt);
-		if (j <= 0)
-			return -EIO;
-		brd->numPorts = j * 8;
-		writew(j, baseAddr + Module_no);
-		writew(0, baseAddr + Magic_no);
-		for (i = 0; i < 600; i++) {
-			if (readw(baseAddr + Magic_no) == Magic_code)
-				break;
-			msleep(10);
-		}
-		if (readw(baseAddr + Magic_no) != Magic_code)
-			return -EIO;
-	}
-	brd->intNdx = baseAddr + IRQindex;
-	brd->intPend = baseAddr + IRQpending;
-	brd->intTable = baseAddr + IRQtable;
-
-	return 0;
-}
-
-static int moxa_load_code(struct moxa_board_conf *brd, const void *ptr,
-		size_t len)
-{
-	void __iomem *ofsAddr, *baseAddr = brd->basemem;
-	struct moxa_port *port;
-	int retval, i;
-
-	if (len % 2) {
-		printk(KERN_ERR "MOXA: bios length is not even\n");
-		return -EINVAL;
-	}
-
-	retval = moxa_real_load_code(brd, ptr, len); /* may change numPorts */
-	if (retval)
-		return retval;
-
-	switch (brd->boardType) {
-	case MOXA_BOARD_C218_ISA:
-	case MOXA_BOARD_C218_PCI:
-	case MOXA_BOARD_CP204J:
-		port = brd->ports;
-		for (i = 0; i < brd->numPorts; i++, port++) {
-			port->board = brd;
-			port->DCDState = 0;
-			port->tableAddr = baseAddr + Extern_table +
-					Extern_size * i;
-			ofsAddr = port->tableAddr;
-			writew(C218rx_mask, ofsAddr + RX_mask);
-			writew(C218tx_mask, ofsAddr + TX_mask);
-			writew(C218rx_spage + i * C218buf_pageno, ofsAddr + Page_rxb);
-			writew(readw(ofsAddr + Page_rxb) + C218rx_pageno, ofsAddr + EndPage_rxb);
-
-			writew(C218tx_spage + i * C218buf_pageno, ofsAddr + Page_txb);
-			writew(readw(ofsAddr + Page_txb) + C218tx_pageno, ofsAddr + EndPage_txb);
-
-		}
-		break;
-	default:
-		port = brd->ports;
-		for (i = 0; i < brd->numPorts; i++, port++) {
-			port->board = brd;
-			port->DCDState = 0;
-			port->tableAddr = baseAddr + Extern_table +
-					Extern_size * i;
-			ofsAddr = port->tableAddr;
-			switch (brd->numPorts) {
-			case 8:
-				writew(C320p8rx_mask, ofsAddr + RX_mask);
-				writew(C320p8tx_mask, ofsAddr + TX_mask);
-				writew(C320p8rx_spage + i * C320p8buf_pgno, ofsAddr + Page_rxb);
-				writew(readw(ofsAddr + Page_rxb) + C320p8rx_pgno, ofsAddr + EndPage_rxb);
-				writew(C320p8tx_spage + i * C320p8buf_pgno, ofsAddr + Page_txb);
-				writew(readw(ofsAddr + Page_txb) + C320p8tx_pgno, ofsAddr + EndPage_txb);
-
-				break;
-			case 16:
-				writew(C320p16rx_mask, ofsAddr + RX_mask);
-				writew(C320p16tx_mask, ofsAddr + TX_mask);
-				writew(C320p16rx_spage + i * C320p16buf_pgno, ofsAddr + Page_rxb);
-				writew(readw(ofsAddr + Page_rxb) + C320p16rx_pgno, ofsAddr + EndPage_rxb);
-				writew(C320p16tx_spage + i * C320p16buf_pgno, ofsAddr + Page_txb);
-				writew(readw(ofsAddr + Page_txb) + C320p16tx_pgno, ofsAddr + EndPage_txb);
-				break;
-
-			case 24:
-				writew(C320p24rx_mask, ofsAddr + RX_mask);
-				writew(C320p24tx_mask, ofsAddr + TX_mask);
-				writew(C320p24rx_spage + i * C320p24buf_pgno, ofsAddr + Page_rxb);
-				writew(readw(ofsAddr + Page_rxb) + C320p24rx_pgno, ofsAddr + EndPage_rxb);
-				writew(C320p24tx_spage + i * C320p24buf_pgno, ofsAddr + Page_txb);
-				writew(readw(ofsAddr + Page_txb), ofsAddr + EndPage_txb);
-				break;
-			case 32:
-				writew(C320p32rx_mask, ofsAddr + RX_mask);
-				writew(C320p32tx_mask, ofsAddr + TX_mask);
-				writew(C320p32tx_ofs, ofsAddr + Ofs_txb);
-				writew(C320p32rx_spage + i * C320p32buf_pgno, ofsAddr + Page_rxb);
-				writew(readb(ofsAddr + Page_rxb), ofsAddr + EndPage_rxb);
-				writew(C320p32tx_spage + i * C320p32buf_pgno, ofsAddr + Page_txb);
-				writew(readw(ofsAddr + Page_txb), ofsAddr + EndPage_txb);
-				break;
-			}
-		}
-		break;
-	}
-	return 0;
-}
-
-static int moxa_load_fw(struct moxa_board_conf *brd, const struct firmware *fw)
-{
-	const void *ptr = fw->data;
-	char rsn[64];
-	u16 lens[5];
-	size_t len;
-	unsigned int a, lenp, lencnt;
-	int ret = -EINVAL;
-	struct {
-		__le32 magic;	/* 0x34303430 */
-		u8 reserved1[2];
-		u8 type;	/* UNIX = 3 */
-		u8 model;	/* C218T=1, C320T=2, CP204=3 */
-		u8 reserved2[8];
-		__le16 len[5];
-	} const *hdr = ptr;
-
-	BUILD_BUG_ON(ARRAY_SIZE(hdr->len) != ARRAY_SIZE(lens));
-
-	if (fw->size < MOXA_FW_HDRLEN) {
-		strcpy(rsn, "too short (even header won't fit)");
-		goto err;
-	}
-	if (hdr->magic != cpu_to_le32(0x30343034)) {
-		sprintf(rsn, "bad magic: %.8x", le32_to_cpu(hdr->magic));
-		goto err;
-	}
-	if (hdr->type != 3) {
-		sprintf(rsn, "not for linux, type is %u", hdr->type);
-		goto err;
-	}
-	if (moxa_check_fw_model(brd, hdr->model)) {
-		sprintf(rsn, "not for this card, model is %u", hdr->model);
-		goto err;
-	}
-
-	len = MOXA_FW_HDRLEN;
-	lencnt = hdr->model == 2 ? 5 : 3;
-	for (a = 0; a < ARRAY_SIZE(lens); a++) {
-		lens[a] = le16_to_cpu(hdr->len[a]);
-		if (lens[a] && len + lens[a] <= fw->size &&
-				moxa_check_fw(&fw->data[len]))
-			printk(KERN_WARNING "MOXA firmware: unexpected input "
-				"at offset %u, but going on\n", (u32)len);
-		if (!lens[a] && a < lencnt) {
-			sprintf(rsn, "too few entries in fw file");
-			goto err;
-		}
-		len += lens[a];
-	}
-
-	if (len != fw->size) {
-		sprintf(rsn, "bad length: %u (should be %u)", (u32)fw->size,
-				(u32)len);
-		goto err;
-	}
-
-	ptr += MOXA_FW_HDRLEN;
-	lenp = 0; /* bios */
-
-	strcpy(rsn, "read above");
-
-	ret = moxa_load_bios(brd, ptr, lens[lenp]);
-	if (ret)
-		goto err;
-
-	/* we skip the tty section (lens[1]), since we don't need it */
-	ptr += lens[lenp] + lens[lenp + 1];
-	lenp += 2; /* comm */
-
-	if (hdr->model == 2) {
-		ret = moxa_load_320b(brd, ptr, lens[lenp]);
-		if (ret)
-			goto err;
-		/* skip another tty */
-		ptr += lens[lenp] + lens[lenp + 1];
-		lenp += 2;
-	}
-
-	ret = moxa_load_code(brd, ptr, lens[lenp]);
-	if (ret)
-		goto err;
-
-	return 0;
-err:
-	printk(KERN_ERR "firmware failed to load, reason: %s\n", rsn);
-	return ret;
-}
-
-static int moxa_init_board(struct moxa_board_conf *brd, struct device *dev)
-{
-	const struct firmware *fw;
-	const char *file;
-	struct moxa_port *p;
-	unsigned int i;
-	int ret;
-
-	brd->ports = kcalloc(MAX_PORTS_PER_BOARD, sizeof(*brd->ports),
-			GFP_KERNEL);
-	if (brd->ports == NULL) {
-		printk(KERN_ERR "cannot allocate memory for ports\n");
-		ret = -ENOMEM;
-		goto err;
-	}
-
-	for (i = 0, p = brd->ports; i < MAX_PORTS_PER_BOARD; i++, p++) {
-		tty_port_init(&p->port);
-		p->port.ops = &moxa_port_ops;
-		p->type = PORT_16550A;
-		p->cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL;
-	}
-
-	switch (brd->boardType) {
-	case MOXA_BOARD_C218_ISA:
-	case MOXA_BOARD_C218_PCI:
-		file = "c218tunx.cod";
-		break;
-	case MOXA_BOARD_CP204J:
-		file = "cp204unx.cod";
-		break;
-	default:
-		file = "c320tunx.cod";
-		break;
-	}
-
-	ret = request_firmware(&fw, file, dev);
-	if (ret) {
-		printk(KERN_ERR "MOXA: request_firmware failed. Make sure "
-				"you've placed '%s' file into your firmware "
-				"loader directory (e.g. /lib/firmware)\n",
-				file);
-		goto err_free;
-	}
-
-	ret = moxa_load_fw(brd, fw);
-
-	release_firmware(fw);
-
-	if (ret)
-		goto err_free;
-
-	spin_lock_bh(&moxa_lock);
-	brd->ready = 1;
-	if (!timer_pending(&moxaTimer))
-		mod_timer(&moxaTimer, jiffies + HZ / 50);
-	spin_unlock_bh(&moxa_lock);
-
-	return 0;
-err_free:
-	kfree(brd->ports);
-err:
-	return ret;
-}
-
-static void moxa_board_deinit(struct moxa_board_conf *brd)
-{
-	unsigned int a, opened;
-
-	mutex_lock(&moxa_openlock);
-	spin_lock_bh(&moxa_lock);
-	brd->ready = 0;
-	spin_unlock_bh(&moxa_lock);
-
-	/* pci hot-un-plug support */
-	for (a = 0; a < brd->numPorts; a++)
-		if (brd->ports[a].port.flags & ASYNC_INITIALIZED) {
-			struct tty_struct *tty = tty_port_tty_get(
-						&brd->ports[a].port);
-			if (tty) {
-				tty_hangup(tty);
-				tty_kref_put(tty);
-			}
-		}
-	while (1) {
-		opened = 0;
-		for (a = 0; a < brd->numPorts; a++)
-			if (brd->ports[a].port.flags & ASYNC_INITIALIZED)
-				opened++;
-		mutex_unlock(&moxa_openlock);
-		if (!opened)
-			break;
-		msleep(50);
-		mutex_lock(&moxa_openlock);
-	}
-
-	iounmap(brd->basemem);
-	brd->basemem = NULL;
-	kfree(brd->ports);
-}
-
-#ifdef CONFIG_PCI
-static int __devinit moxa_pci_probe(struct pci_dev *pdev,
-		const struct pci_device_id *ent)
-{
-	struct moxa_board_conf *board;
-	unsigned int i;
-	int board_type = ent->driver_data;
-	int retval;
-
-	retval = pci_enable_device(pdev);
-	if (retval) {
-		dev_err(&pdev->dev, "can't enable pci device\n");
-		goto err;
-	}
-
-	for (i = 0; i < MAX_BOARDS; i++)
-		if (moxa_boards[i].basemem == NULL)
-			break;
-
-	retval = -ENODEV;
-	if (i >= MAX_BOARDS) {
-		dev_warn(&pdev->dev, "more than %u MOXA Intellio family boards "
-				"found. Board is ignored.\n", MAX_BOARDS);
-		goto err;
-	}
-
-	board = &moxa_boards[i];
-
-	retval = pci_request_region(pdev, 2, "moxa-base");
-	if (retval) {
-		dev_err(&pdev->dev, "can't request pci region 2\n");
-		goto err;
-	}
-
-	board->basemem = ioremap_nocache(pci_resource_start(pdev, 2), 0x4000);
-	if (board->basemem == NULL) {
-		dev_err(&pdev->dev, "can't remap io space 2\n");
-		goto err_reg;
-	}
-
-	board->boardType = board_type;
-	switch (board_type) {
-	case MOXA_BOARD_C218_ISA:
-	case MOXA_BOARD_C218_PCI:
-		board->numPorts = 8;
-		break;
-
-	case MOXA_BOARD_CP204J:
-		board->numPorts = 4;
-		break;
-	default:
-		board->numPorts = 0;
-		break;
-	}
-	board->busType = MOXA_BUS_TYPE_PCI;
-
-	retval = moxa_init_board(board, &pdev->dev);
-	if (retval)
-		goto err_base;
-
-	pci_set_drvdata(pdev, board);
-
-	dev_info(&pdev->dev, "board '%s' ready (%u ports, firmware loaded)\n",
-			moxa_brdname[board_type - 1], board->numPorts);
-
-	return 0;
-err_base:
-	iounmap(board->basemem);
-	board->basemem = NULL;
-err_reg:
-	pci_release_region(pdev, 2);
-err:
-	return retval;
-}
-
-static void __devexit moxa_pci_remove(struct pci_dev *pdev)
-{
-	struct moxa_board_conf *brd = pci_get_drvdata(pdev);
-
-	moxa_board_deinit(brd);
-
-	pci_release_region(pdev, 2);
-}
-
-static struct pci_driver moxa_pci_driver = {
-	.name = "moxa",
-	.id_table = moxa_pcibrds,
-	.probe = moxa_pci_probe,
-	.remove = __devexit_p(moxa_pci_remove)
-};
-#endif /* CONFIG_PCI */
-
-static int __init moxa_init(void)
-{
-	unsigned int isabrds = 0;
-	int retval = 0;
-	struct moxa_board_conf *brd = moxa_boards;
-	unsigned int i;
-
-	printk(KERN_INFO "MOXA Intellio family driver version %s\n",
-			MOXA_VERSION);
-	moxaDriver = alloc_tty_driver(MAX_PORTS + 1);
-	if (!moxaDriver)
-		return -ENOMEM;
-
-	moxaDriver->owner = THIS_MODULE;
-	moxaDriver->name = "ttyMX";
-	moxaDriver->major = ttymajor;
-	moxaDriver->minor_start = 0;
-	moxaDriver->type = TTY_DRIVER_TYPE_SERIAL;
-	moxaDriver->subtype = SERIAL_TYPE_NORMAL;
-	moxaDriver->init_termios = tty_std_termios;
-	moxaDriver->init_termios.c_cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL;
-	moxaDriver->init_termios.c_ispeed = 9600;
-	moxaDriver->init_termios.c_ospeed = 9600;
-	moxaDriver->flags = TTY_DRIVER_REAL_RAW;
-	tty_set_operations(moxaDriver, &moxa_ops);
-
-	if (tty_register_driver(moxaDriver)) {
-		printk(KERN_ERR "can't register MOXA Smartio tty driver!\n");
-		put_tty_driver(moxaDriver);
-		return -1;
-	}
-
-	/* Find the boards defined from module args. */
-
-	for (i = 0; i < MAX_BOARDS; i++) {
-		if (!baseaddr[i])
-			break;
-		if (type[i] == MOXA_BOARD_C218_ISA ||
-				type[i] == MOXA_BOARD_C320_ISA) {
-			pr_debug("Moxa board %2d: %s board(baseAddr=%lx)\n",
-					isabrds + 1, moxa_brdname[type[i] - 1],
-					baseaddr[i]);
-			brd->boardType = type[i];
-			brd->numPorts = type[i] == MOXA_BOARD_C218_ISA ? 8 :
-					numports[i];
-			brd->busType = MOXA_BUS_TYPE_ISA;
-			brd->basemem = ioremap_nocache(baseaddr[i], 0x4000);
-			if (!brd->basemem) {
-				printk(KERN_ERR "MOXA: can't remap %lx\n",
-						baseaddr[i]);
-				continue;
-			}
-			if (moxa_init_board(brd, NULL)) {
-				iounmap(brd->basemem);
-				brd->basemem = NULL;
-				continue;
-			}
-
-			printk(KERN_INFO "MOXA isa board found at 0x%.8lu and "
-					"ready (%u ports, firmware loaded)\n",
-					baseaddr[i], brd->numPorts);
-
-			brd++;
-			isabrds++;
-		}
-	}
-
-#ifdef CONFIG_PCI
-	retval = pci_register_driver(&moxa_pci_driver);
-	if (retval) {
-		printk(KERN_ERR "Can't register MOXA pci driver!\n");
-		if (isabrds)
-			retval = 0;
-	}
-#endif
-
-	return retval;
-}
-
-static void __exit moxa_exit(void)
-{
-	unsigned int i;
-
-#ifdef CONFIG_PCI
-	pci_unregister_driver(&moxa_pci_driver);
-#endif
-
-	for (i = 0; i < MAX_BOARDS; i++) /* ISA boards */
-		if (moxa_boards[i].ready)
-			moxa_board_deinit(&moxa_boards[i]);
-
-	del_timer_sync(&moxaTimer);
-
-	if (tty_unregister_driver(moxaDriver))
-		printk(KERN_ERR "Couldn't unregister MOXA Intellio family "
-				"serial driver\n");
-	put_tty_driver(moxaDriver);
-}
-
-module_init(moxa_init);
-module_exit(moxa_exit);
-
-static void moxa_shutdown(struct tty_port *port)
-{
-	struct moxa_port *ch = container_of(port, struct moxa_port, port);
-        MoxaPortDisable(ch);
-	MoxaPortFlushData(ch, 2);
-	clear_bit(ASYNCB_NORMAL_ACTIVE, &port->flags);
-}
-
-static int moxa_carrier_raised(struct tty_port *port)
-{
-	struct moxa_port *ch = container_of(port, struct moxa_port, port);
-	int dcd;
-
-	spin_lock_irq(&port->lock);
-	dcd = ch->DCDState;
-	spin_unlock_irq(&port->lock);
-	return dcd;
-}
-
-static void moxa_dtr_rts(struct tty_port *port, int onoff)
-{
-	struct moxa_port *ch = container_of(port, struct moxa_port, port);
-	MoxaPortLineCtrl(ch, onoff, onoff);
-}
-
-
-static int moxa_open(struct tty_struct *tty, struct file *filp)
-{
-	struct moxa_board_conf *brd;
-	struct moxa_port *ch;
-	int port;
-	int retval;
-
-	port = tty->index;
-	if (port == MAX_PORTS) {
-		return capable(CAP_SYS_ADMIN) ? 0 : -EPERM;
-	}
-	if (mutex_lock_interruptible(&moxa_openlock))
-		return -ERESTARTSYS;
-	brd = &moxa_boards[port / MAX_PORTS_PER_BOARD];
-	if (!brd->ready) {
-		mutex_unlock(&moxa_openlock);
-		return -ENODEV;
-	}
-
-	if (port % MAX_PORTS_PER_BOARD >= brd->numPorts) {
-		mutex_unlock(&moxa_openlock);
-		return -ENODEV;
-	}
-
-	ch = &brd->ports[port % MAX_PORTS_PER_BOARD];
-	ch->port.count++;
-	tty->driver_data = ch;
-	tty_port_tty_set(&ch->port, tty);
-	mutex_lock(&ch->port.mutex);
-	if (!(ch->port.flags & ASYNC_INITIALIZED)) {
-		ch->statusflags = 0;
-		moxa_set_tty_param(tty, tty->termios);
-		MoxaPortLineCtrl(ch, 1, 1);
-		MoxaPortEnable(ch);
-		MoxaSetFifo(ch, ch->type == PORT_16550A);
-		ch->port.flags |= ASYNC_INITIALIZED;
-	}
-	mutex_unlock(&ch->port.mutex);
-	mutex_unlock(&moxa_openlock);
-
-	retval = tty_port_block_til_ready(&ch->port, tty, filp);
-	if (retval == 0)
-	        set_bit(ASYNCB_NORMAL_ACTIVE, &ch->port.flags);
-	return retval;
-}
-
-static void moxa_close(struct tty_struct *tty, struct file *filp)
-{
-	struct moxa_port *ch = tty->driver_data;
-	ch->cflag = tty->termios->c_cflag;
-	tty_port_close(&ch->port, tty, filp);
-}
-
-static int moxa_write(struct tty_struct *tty,
-		      const unsigned char *buf, int count)
-{
-	struct moxa_port *ch = tty->driver_data;
-	int len;
-
-	if (ch == NULL)
-		return 0;
-
-	spin_lock_bh(&moxa_lock);
-	len = MoxaPortWriteData(tty, buf, count);
-	spin_unlock_bh(&moxa_lock);
-
-	set_bit(LOWWAIT, &ch->statusflags);
-	return len;
-}
-
-static int moxa_write_room(struct tty_struct *tty)
-{
-	struct moxa_port *ch;
-
-	if (tty->stopped)
-		return 0;
-	ch = tty->driver_data;
-	if (ch == NULL)
-		return 0;
-	return MoxaPortTxFree(ch);
-}
-
-static void moxa_flush_buffer(struct tty_struct *tty)
-{
-	struct moxa_port *ch = tty->driver_data;
-
-	if (ch == NULL)
-		return;
-	MoxaPortFlushData(ch, 1);
-	tty_wakeup(tty);
-}
-
-static int moxa_chars_in_buffer(struct tty_struct *tty)
-{
-	struct moxa_port *ch = tty->driver_data;
-	int chars;
-
-	chars = MoxaPortTxQueue(ch);
-	if (chars)
-		/*
-		 * Make it possible to wakeup anything waiting for output
-		 * in tty_ioctl.c, etc.
-		 */
-        	set_bit(EMPTYWAIT, &ch->statusflags);
-	return chars;
-}
-
-static int moxa_tiocmget(struct tty_struct *tty)
-{
-	struct moxa_port *ch = tty->driver_data;
-	int flag = 0, dtr, rts;
-
-	MoxaPortGetLineOut(ch, &dtr, &rts);
-	if (dtr)
-		flag |= TIOCM_DTR;
-	if (rts)
-		flag |= TIOCM_RTS;
-	dtr = MoxaPortLineStatus(ch);
-	if (dtr & 1)
-		flag |= TIOCM_CTS;
-	if (dtr & 2)
-		flag |= TIOCM_DSR;
-	if (dtr & 4)
-		flag |= TIOCM_CD;
-	return flag;
-}
-
-static int moxa_tiocmset(struct tty_struct *tty,
-			 unsigned int set, unsigned int clear)
-{
-	struct moxa_port *ch;
-	int port;
-	int dtr, rts;
-
-	port = tty->index;
-	mutex_lock(&moxa_openlock);
-	ch = tty->driver_data;
-	if (!ch) {
-		mutex_unlock(&moxa_openlock);
-		return -EINVAL;
-	}
-
-	MoxaPortGetLineOut(ch, &dtr, &rts);
-	if (set & TIOCM_RTS)
-		rts = 1;
-	if (set & TIOCM_DTR)
-		dtr = 1;
-	if (clear & TIOCM_RTS)
-		rts = 0;
-	if (clear & TIOCM_DTR)
-		dtr = 0;
-	MoxaPortLineCtrl(ch, dtr, rts);
-	mutex_unlock(&moxa_openlock);
-	return 0;
-}
-
-static void moxa_set_termios(struct tty_struct *tty,
-		struct ktermios *old_termios)
-{
-	struct moxa_port *ch = tty->driver_data;
-
-	if (ch == NULL)
-		return;
-	moxa_set_tty_param(tty, old_termios);
-	if (!(old_termios->c_cflag & CLOCAL) && C_CLOCAL(tty))
-		wake_up_interruptible(&ch->port.open_wait);
-}
-
-static void moxa_stop(struct tty_struct *tty)
-{
-	struct moxa_port *ch = tty->driver_data;
-
-	if (ch == NULL)
-		return;
-	MoxaPortTxDisable(ch);
-	set_bit(TXSTOPPED, &ch->statusflags);
-}
-
-
-static void moxa_start(struct tty_struct *tty)
-{
-	struct moxa_port *ch = tty->driver_data;
-
-	if (ch == NULL)
-		return;
-
-	if (!(ch->statusflags & TXSTOPPED))
-		return;
-
-	MoxaPortTxEnable(ch);
-	clear_bit(TXSTOPPED, &ch->statusflags);
-}
-
-static void moxa_hangup(struct tty_struct *tty)
-{
-	struct moxa_port *ch = tty->driver_data;
-	tty_port_hangup(&ch->port);
-}
-
-static void moxa_new_dcdstate(struct moxa_port *p, u8 dcd)
-{
-	struct tty_struct *tty;
-	unsigned long flags;
-	dcd = !!dcd;
-
-	spin_lock_irqsave(&p->port.lock, flags);
-	if (dcd != p->DCDState) {
-        	p->DCDState = dcd;
-        	spin_unlock_irqrestore(&p->port.lock, flags);
-		tty = tty_port_tty_get(&p->port);
-		if (tty && C_CLOCAL(tty) && !dcd)
-			tty_hangup(tty);
-		tty_kref_put(tty);
-	}
-	else
-		spin_unlock_irqrestore(&p->port.lock, flags);
-}
-
-static int moxa_poll_port(struct moxa_port *p, unsigned int handle,
-		u16 __iomem *ip)
-{
-	struct tty_struct *tty = tty_port_tty_get(&p->port);
-	void __iomem *ofsAddr;
-	unsigned int inited = p->port.flags & ASYNC_INITIALIZED;
-	u16 intr;
-
-	if (tty) {
-		if (test_bit(EMPTYWAIT, &p->statusflags) &&
-				MoxaPortTxQueue(p) == 0) {
-			clear_bit(EMPTYWAIT, &p->statusflags);
-			tty_wakeup(tty);
-		}
-		if (test_bit(LOWWAIT, &p->statusflags) && !tty->stopped &&
-				MoxaPortTxQueue(p) <= WAKEUP_CHARS) {
-			clear_bit(LOWWAIT, &p->statusflags);
-			tty_wakeup(tty);
-		}
-
-		if (inited && !test_bit(TTY_THROTTLED, &tty->flags) &&
-				MoxaPortRxQueue(p) > 0) { /* RX */
-			MoxaPortReadData(p);
-			tty_schedule_flip(tty);
-		}
-	} else {
-		clear_bit(EMPTYWAIT, &p->statusflags);
-		MoxaPortFlushData(p, 0); /* flush RX */
-	}
-
-	if (!handle) /* nothing else to do */
-		goto put;
-
-	intr = readw(ip); /* port irq status */
-	if (intr == 0)
-		goto put;
-
-	writew(0, ip); /* ACK port */
-	ofsAddr = p->tableAddr;
-	if (intr & IntrTx) /* disable tx intr */
-		writew(readw(ofsAddr + HostStat) & ~WakeupTx,
-				ofsAddr + HostStat);
-
-	if (!inited)
-		goto put;
-
-	if (tty && (intr & IntrBreak) && !I_IGNBRK(tty)) { /* BREAK */
-		tty_insert_flip_char(tty, 0, TTY_BREAK);
-		tty_schedule_flip(tty);
-	}
-
-	if (intr & IntrLine)
-		moxa_new_dcdstate(p, readb(ofsAddr + FlagStat) & DCD_state);
-put:
-	tty_kref_put(tty);
-
-	return 0;
-}
-
-static void moxa_poll(unsigned long ignored)
-{
-	struct moxa_board_conf *brd;
-	u16 __iomem *ip;
-	unsigned int card, port, served = 0;
-
-	spin_lock(&moxa_lock);
-	for (card = 0; card < MAX_BOARDS; card++) {
-		brd = &moxa_boards[card];
-		if (!brd->ready)
-			continue;
-
-		served++;
-
-		ip = NULL;
-		if (readb(brd->intPend) == 0xff)
-			ip = brd->intTable + readb(brd->intNdx);
-
-		for (port = 0; port < brd->numPorts; port++)
-			moxa_poll_port(&brd->ports[port], !!ip, ip + port);
-
-		if (ip)
-			writeb(0, brd->intPend); /* ACK */
-
-		if (moxaLowWaterChk) {
-			struct moxa_port *p = brd->ports;
-			for (port = 0; port < brd->numPorts; port++, p++)
-				if (p->lowChkFlag) {
-					p->lowChkFlag = 0;
-					moxa_low_water_check(p->tableAddr);
-				}
-		}
-	}
-	moxaLowWaterChk = 0;
-
-	if (served)
-		mod_timer(&moxaTimer, jiffies + HZ / 50);
-	spin_unlock(&moxa_lock);
-}
-
-/******************************************************************************/
-
-static void moxa_set_tty_param(struct tty_struct *tty, struct ktermios *old_termios)
-{
-	register struct ktermios *ts = tty->termios;
-	struct moxa_port *ch = tty->driver_data;
-	int rts, cts, txflow, rxflow, xany, baud;
-
-	rts = cts = txflow = rxflow = xany = 0;
-	if (ts->c_cflag & CRTSCTS)
-		rts = cts = 1;
-	if (ts->c_iflag & IXON)
-		txflow = 1;
-	if (ts->c_iflag & IXOFF)
-		rxflow = 1;
-	if (ts->c_iflag & IXANY)
-		xany = 1;
-
-	/* Clear the features we don't support */
-	ts->c_cflag &= ~CMSPAR;
-	MoxaPortFlowCtrl(ch, rts, cts, txflow, rxflow, xany);
-	baud = MoxaPortSetTermio(ch, ts, tty_get_baud_rate(tty));
-	if (baud == -1)
-		baud = tty_termios_baud_rate(old_termios);
-	/* Not put the baud rate into the termios data */
-	tty_encode_baud_rate(tty, baud, baud);
-}
-
-/*****************************************************************************
- *	Driver level functions: 					     *
- *****************************************************************************/
-
-static void MoxaPortFlushData(struct moxa_port *port, int mode)
-{
-	void __iomem *ofsAddr;
-	if (mode < 0 || mode > 2)
-		return;
-	ofsAddr = port->tableAddr;
-	moxafunc(ofsAddr, FC_FlushQueue, mode);
-	if (mode != 1) {
-		port->lowChkFlag = 0;
-		moxa_low_water_check(ofsAddr);
-	}
-}
-
-/*
- *    Moxa Port Number Description:
- *
- *      MOXA serial driver supports up to 4 MOXA-C218/C320 boards. And,
- *      the port number using in MOXA driver functions will be 0 to 31 for
- *      first MOXA board, 32 to 63 for second, 64 to 95 for third and 96
- *      to 127 for fourth. For example, if you setup three MOXA boards,
- *      first board is C218, second board is C320-16 and third board is
- *      C320-32. The port number of first board (C218 - 8 ports) is from
- *      0 to 7. The port number of second board (C320 - 16 ports) is form
- *      32 to 47. The port number of third board (C320 - 32 ports) is from
- *      64 to 95. And those port numbers form 8 to 31, 48 to 63 and 96 to
- *      127 will be invalid.
- *
- *
- *      Moxa Functions Description:
- *
- *      Function 1:     Driver initialization routine, this routine must be
- *                      called when initialized driver.
- *      Syntax:
- *      void MoxaDriverInit();
- *
- *
- *      Function 2:     Moxa driver private IOCTL command processing.
- *      Syntax:
- *      int  MoxaDriverIoctl(unsigned int cmd, unsigned long arg, int port);
- *
- *           unsigned int cmd   : IOCTL command
- *           unsigned long arg  : IOCTL argument
- *           int port           : port number (0 - 127)
- *
- *           return:    0  (OK)
- *                      -EINVAL
- *                      -ENOIOCTLCMD
- *
- *
- *      Function 6:     Enable this port to start Tx/Rx data.
- *      Syntax:
- *      void MoxaPortEnable(int port);
- *           int port           : port number (0 - 127)
- *
- *
- *      Function 7:     Disable this port
- *      Syntax:
- *      void MoxaPortDisable(int port);
- *           int port           : port number (0 - 127)
- *
- *
- *      Function 10:    Setting baud rate of this port.
- *      Syntax:
- *      speed_t MoxaPortSetBaud(int port, speed_t baud);
- *           int port           : port number (0 - 127)
- *           long baud          : baud rate (50 - 115200)
- *
- *           return:    0       : this port is invalid or baud < 50
- *                      50 - 115200 : the real baud rate set to the port, if
- *                                    the argument baud is large than maximun
- *                                    available baud rate, the real setting
- *                                    baud rate will be the maximun baud rate.
- *
- *
- *      Function 12:    Configure the port.
- *      Syntax:
- *      int  MoxaPortSetTermio(int port, struct ktermios *termio, speed_t baud);
- *           int port           : port number (0 - 127)
- *           struct ktermios * termio : termio structure pointer
- *	     speed_t baud	: baud rate
- *
- *           return:    -1      : this port is invalid or termio == NULL
- *                      0       : setting O.K.
- *
- *
- *      Function 13:    Get the DTR/RTS state of this port.
- *      Syntax:
- *      int  MoxaPortGetLineOut(int port, int *dtrState, int *rtsState);
- *           int port           : port number (0 - 127)
- *           int * dtrState     : pointer to INT to receive the current DTR
- *                                state. (if NULL, this function will not
- *                                write to this address)
- *           int * rtsState     : pointer to INT to receive the current RTS
- *                                state. (if NULL, this function will not
- *                                write to this address)
- *
- *           return:    -1      : this port is invalid
- *                      0       : O.K.
- *
- *
- *      Function 14:    Setting the DTR/RTS output state of this port.
- *      Syntax:
- *      void MoxaPortLineCtrl(int port, int dtrState, int rtsState);
- *           int port           : port number (0 - 127)
- *           int dtrState       : DTR output state (0: off, 1: on)
- *           int rtsState       : RTS output state (0: off, 1: on)
- *
- *
- *      Function 15:    Setting the flow control of this port.
- *      Syntax:
- *      void MoxaPortFlowCtrl(int port, int rtsFlow, int ctsFlow, int rxFlow,
- *                            int txFlow,int xany);
- *           int port           : port number (0 - 127)
- *           int rtsFlow        : H/W RTS flow control (0: no, 1: yes)
- *           int ctsFlow        : H/W CTS flow control (0: no, 1: yes)
- *           int rxFlow         : S/W Rx XON/XOFF flow control (0: no, 1: yes)
- *           int txFlow         : S/W Tx XON/XOFF flow control (0: no, 1: yes)
- *           int xany           : S/W XANY flow control (0: no, 1: yes)
- *
- *
- *      Function 16:    Get ths line status of this port
- *      Syntax:
- *      int  MoxaPortLineStatus(int port);
- *           int port           : port number (0 - 127)
- *
- *           return:    Bit 0 - CTS state (0: off, 1: on)
- *                      Bit 1 - DSR state (0: off, 1: on)
- *                      Bit 2 - DCD state (0: off, 1: on)
- *
- *
- *      Function 19:    Flush the Rx/Tx buffer data of this port.
- *      Syntax:
- *      void MoxaPortFlushData(int port, int mode);
- *           int port           : port number (0 - 127)
- *           int mode    
- *                      0       : flush the Rx buffer 
- *                      1       : flush the Tx buffer 
- *                      2       : flush the Rx and Tx buffer 
- *
- *
- *      Function 20:    Write data.
- *      Syntax:
- *      int  MoxaPortWriteData(int port, unsigned char * buffer, int length);
- *           int port           : port number (0 - 127)
- *           unsigned char * buffer     : pointer to write data buffer.
- *           int length         : write data length
- *
- *           return:    0 - length      : real write data length
- *
- *
- *      Function 21:    Read data.
- *      Syntax:
- *      int  MoxaPortReadData(int port, struct tty_struct *tty);
- *           int port           : port number (0 - 127)
- *	     struct tty_struct *tty : tty for data
- *
- *           return:    0 - length      : real read data length
- *
- *
- *      Function 24:    Get the Tx buffer current queued data bytes
- *      Syntax:
- *      int  MoxaPortTxQueue(int port);
- *           int port           : port number (0 - 127)
- *
- *           return:    ..      : Tx buffer current queued data bytes
- *
- *
- *      Function 25:    Get the Tx buffer current free space
- *      Syntax:
- *      int  MoxaPortTxFree(int port);
- *           int port           : port number (0 - 127)
- *
- *           return:    ..      : Tx buffer current free space
- *
- *
- *      Function 26:    Get the Rx buffer current queued data bytes
- *      Syntax:
- *      int  MoxaPortRxQueue(int port);
- *           int port           : port number (0 - 127)
- *
- *           return:    ..      : Rx buffer current queued data bytes
- *
- *
- *      Function 28:    Disable port data transmission.
- *      Syntax:
- *      void MoxaPortTxDisable(int port);
- *           int port           : port number (0 - 127)
- *
- *
- *      Function 29:    Enable port data transmission.
- *      Syntax:
- *      void MoxaPortTxEnable(int port);
- *           int port           : port number (0 - 127)
- *
- *
- *      Function 31:    Get the received BREAK signal count and reset it.
- *      Syntax:
- *      int  MoxaPortResetBrkCnt(int port);
- *           int port           : port number (0 - 127)
- *
- *           return:    0 - ..  : BREAK signal count
- *
- *
- */
-
-static void MoxaPortEnable(struct moxa_port *port)
-{
-	void __iomem *ofsAddr;
-	u16 lowwater = 512;
-
-	ofsAddr = port->tableAddr;
-	writew(lowwater, ofsAddr + Low_water);
-	if (MOXA_IS_320(port->board))
-		moxafunc(ofsAddr, FC_SetBreakIrq, 0);
-	else
-		writew(readw(ofsAddr + HostStat) | WakeupBreak,
-				ofsAddr + HostStat);
-
-	moxafunc(ofsAddr, FC_SetLineIrq, Magic_code);
-	moxafunc(ofsAddr, FC_FlushQueue, 2);
-
-	moxafunc(ofsAddr, FC_EnableCH, Magic_code);
-	MoxaPortLineStatus(port);
-}
-
-static void MoxaPortDisable(struct moxa_port *port)
-{
-	void __iomem *ofsAddr = port->tableAddr;
-
-	moxafunc(ofsAddr, FC_SetFlowCtl, 0);	/* disable flow control */
-	moxafunc(ofsAddr, FC_ClrLineIrq, Magic_code);
-	writew(0, ofsAddr + HostStat);
-	moxafunc(ofsAddr, FC_DisableCH, Magic_code);
-}
-
-static speed_t MoxaPortSetBaud(struct moxa_port *port, speed_t baud)
-{
-	void __iomem *ofsAddr = port->tableAddr;
-	unsigned int clock, val;
-	speed_t max;
-
-	max = MOXA_IS_320(port->board) ? 460800 : 921600;
-	if (baud < 50)
-		return 0;
-	if (baud > max)
-		baud = max;
-	clock = 921600;
-	val = clock / baud;
-	moxafunc(ofsAddr, FC_SetBaud, val);
-	baud = clock / val;
-	return baud;
-}
-
-static int MoxaPortSetTermio(struct moxa_port *port, struct ktermios *termio,
-		speed_t baud)
-{
-	void __iomem *ofsAddr;
-	tcflag_t cflag;
-	tcflag_t mode = 0;
-
-	ofsAddr = port->tableAddr;
-	cflag = termio->c_cflag;	/* termio->c_cflag */
-
-	mode = termio->c_cflag & CSIZE;
-	if (mode == CS5)
-		mode = MX_CS5;
-	else if (mode == CS6)
-		mode = MX_CS6;
-	else if (mode == CS7)
-		mode = MX_CS7;
-	else if (mode == CS8)
-		mode = MX_CS8;
-
-	if (termio->c_cflag & CSTOPB) {
-		if (mode == MX_CS5)
-			mode |= MX_STOP15;
-		else
-			mode |= MX_STOP2;
-	} else
-		mode |= MX_STOP1;
-
-	if (termio->c_cflag & PARENB) {
-		if (termio->c_cflag & PARODD)
-			mode |= MX_PARODD;
-		else
-			mode |= MX_PAREVEN;
-	} else
-		mode |= MX_PARNONE;
-
-	moxafunc(ofsAddr, FC_SetDataMode, (u16)mode);
-
-	if (MOXA_IS_320(port->board) && baud >= 921600)
-		return -1;
-
-	baud = MoxaPortSetBaud(port, baud);
-
-	if (termio->c_iflag & (IXON | IXOFF | IXANY)) {
-	        spin_lock_irq(&moxafunc_lock);
-		writeb(termio->c_cc[VSTART], ofsAddr + FuncArg);
-		writeb(termio->c_cc[VSTOP], ofsAddr + FuncArg1);
-		writeb(FC_SetXonXoff, ofsAddr + FuncCode);
-		moxa_wait_finish(ofsAddr);
-		spin_unlock_irq(&moxafunc_lock);
-
-	}
-	return baud;
-}
-
-static int MoxaPortGetLineOut(struct moxa_port *port, int *dtrState,
-		int *rtsState)
-{
-	if (dtrState)
-		*dtrState = !!(port->lineCtrl & DTR_ON);
-	if (rtsState)
-		*rtsState = !!(port->lineCtrl & RTS_ON);
-
-	return 0;
-}
-
-static void MoxaPortLineCtrl(struct moxa_port *port, int dtr, int rts)
-{
-	u8 mode = 0;
-
-	if (dtr)
-		mode |= DTR_ON;
-	if (rts)
-		mode |= RTS_ON;
-	port->lineCtrl = mode;
-	moxafunc(port->tableAddr, FC_LineControl, mode);
-}
-
-static void MoxaPortFlowCtrl(struct moxa_port *port, int rts, int cts,
-		int txflow, int rxflow, int txany)
-{
-	int mode = 0;
-
-	if (rts)
-		mode |= RTS_FlowCtl;
-	if (cts)
-		mode |= CTS_FlowCtl;
-	if (txflow)
-		mode |= Tx_FlowCtl;
-	if (rxflow)
-		mode |= Rx_FlowCtl;
-	if (txany)
-		mode |= IXM_IXANY;
-	moxafunc(port->tableAddr, FC_SetFlowCtl, mode);
-}
-
-static int MoxaPortLineStatus(struct moxa_port *port)
-{
-	void __iomem *ofsAddr;
-	int val;
-
-	ofsAddr = port->tableAddr;
-	if (MOXA_IS_320(port->board))
-		val = moxafuncret(ofsAddr, FC_LineStatus, 0);
-	else
-		val = readw(ofsAddr + FlagStat) >> 4;
-	val &= 0x0B;
-	if (val & 8)
-		val |= 4;
-	moxa_new_dcdstate(port, val & 8);
-	val &= 7;
-	return val;
-}
-
-static int MoxaPortWriteData(struct tty_struct *tty,
-		const unsigned char *buffer, int len)
-{
-	struct moxa_port *port = tty->driver_data;
-	void __iomem *baseAddr, *ofsAddr, *ofs;
-	unsigned int c, total;
-	u16 head, tail, tx_mask, spage, epage;
-	u16 pageno, pageofs, bufhead;
-
-	ofsAddr = port->tableAddr;
-	baseAddr = port->board->basemem;
-	tx_mask = readw(ofsAddr + TX_mask);
-	spage = readw(ofsAddr + Page_txb);
-	epage = readw(ofsAddr + EndPage_txb);
-	tail = readw(ofsAddr + TXwptr);
-	head = readw(ofsAddr + TXrptr);
-	c = (head > tail) ? (head - tail - 1) : (head - tail + tx_mask);
-	if (c > len)
-		c = len;
-	moxaLog.txcnt[port->port.tty->index] += c;
-	total = c;
-	if (spage == epage) {
-		bufhead = readw(ofsAddr + Ofs_txb);
-		writew(spage, baseAddr + Control_reg);
-		while (c > 0) {
-			if (head > tail)
-				len = head - tail - 1;
-			else
-				len = tx_mask + 1 - tail;
-			len = (c > len) ? len : c;
-			ofs = baseAddr + DynPage_addr + bufhead + tail;
-			memcpy_toio(ofs, buffer, len);
-			buffer += len;
-			tail = (tail + len) & tx_mask;
-			c -= len;
-		}
-	} else {
-		pageno = spage + (tail >> 13);
-		pageofs = tail & Page_mask;
-		while (c > 0) {
-			len = Page_size - pageofs;
-			if (len > c)
-				len = c;
-			writeb(pageno, baseAddr + Control_reg);
-			ofs = baseAddr + DynPage_addr + pageofs;
-			memcpy_toio(ofs, buffer, len);
-			buffer += len;
-			if (++pageno == epage)
-				pageno = spage;
-			pageofs = 0;
-			c -= len;
-		}
-		tail = (tail + total) & tx_mask;
-	}
-	writew(tail, ofsAddr + TXwptr);
-	writeb(1, ofsAddr + CD180TXirq);	/* start to send */
-	return total;
-}
-
-static int MoxaPortReadData(struct moxa_port *port)
-{
-	struct tty_struct *tty = port->port.tty;
-	unsigned char *dst;
-	void __iomem *baseAddr, *ofsAddr, *ofs;
-	unsigned int count, len, total;
-	u16 tail, rx_mask, spage, epage;
-	u16 pageno, pageofs, bufhead, head;
-
-	ofsAddr = port->tableAddr;
-	baseAddr = port->board->basemem;
-	head = readw(ofsAddr + RXrptr);
-	tail = readw(ofsAddr + RXwptr);
-	rx_mask = readw(ofsAddr + RX_mask);
-	spage = readw(ofsAddr + Page_rxb);
-	epage = readw(ofsAddr + EndPage_rxb);
-	count = (tail >= head) ? (tail - head) : (tail - head + rx_mask + 1);
-	if (count == 0)
-		return 0;
-
-	total = count;
-	moxaLog.rxcnt[tty->index] += total;
-	if (spage == epage) {
-		bufhead = readw(ofsAddr + Ofs_rxb);
-		writew(spage, baseAddr + Control_reg);
-		while (count > 0) {
-			ofs = baseAddr + DynPage_addr + bufhead + head;
-			len = (tail >= head) ? (tail - head) :
-					(rx_mask + 1 - head);
-			len = tty_prepare_flip_string(tty, &dst,
-					min(len, count));
-			memcpy_fromio(dst, ofs, len);
-			head = (head + len) & rx_mask;
-			count -= len;
-		}
-	} else {
-		pageno = spage + (head >> 13);
-		pageofs = head & Page_mask;
-		while (count > 0) {
-			writew(pageno, baseAddr + Control_reg);
-			ofs = baseAddr + DynPage_addr + pageofs;
-			len = tty_prepare_flip_string(tty, &dst,
-					min(Page_size - pageofs, count));
-			memcpy_fromio(dst, ofs, len);
-
-			count -= len;
-			pageofs = (pageofs + len) & Page_mask;
-			if (pageofs == 0 && ++pageno == epage)
-				pageno = spage;
-		}
-		head = (head + total) & rx_mask;
-	}
-	writew(head, ofsAddr + RXrptr);
-	if (readb(ofsAddr + FlagStat) & Xoff_state) {
-		moxaLowWaterChk = 1;
-		port->lowChkFlag = 1;
-	}
-	return total;
-}
-
-
-static int MoxaPortTxQueue(struct moxa_port *port)
-{
-	void __iomem *ofsAddr = port->tableAddr;
-	u16 rptr, wptr, mask;
-
-	rptr = readw(ofsAddr + TXrptr);
-	wptr = readw(ofsAddr + TXwptr);
-	mask = readw(ofsAddr + TX_mask);
-	return (wptr - rptr) & mask;
-}
-
-static int MoxaPortTxFree(struct moxa_port *port)
-{
-	void __iomem *ofsAddr = port->tableAddr;
-	u16 rptr, wptr, mask;
-
-	rptr = readw(ofsAddr + TXrptr);
-	wptr = readw(ofsAddr + TXwptr);
-	mask = readw(ofsAddr + TX_mask);
-	return mask - ((wptr - rptr) & mask);
-}
-
-static int MoxaPortRxQueue(struct moxa_port *port)
-{
-	void __iomem *ofsAddr = port->tableAddr;
-	u16 rptr, wptr, mask;
-
-	rptr = readw(ofsAddr + RXrptr);
-	wptr = readw(ofsAddr + RXwptr);
-	mask = readw(ofsAddr + RX_mask);
-	return (wptr - rptr) & mask;
-}
-
-static void MoxaPortTxDisable(struct moxa_port *port)
-{
-	moxafunc(port->tableAddr, FC_SetXoffState, Magic_code);
-}
-
-static void MoxaPortTxEnable(struct moxa_port *port)
-{
-	moxafunc(port->tableAddr, FC_SetXonState, Magic_code);
-}
-
-static int moxa_get_serial_info(struct moxa_port *info,
-		struct serial_struct __user *retinfo)
-{
-	struct serial_struct tmp = {
-		.type = info->type,
-		.line = info->port.tty->index,
-		.flags = info->port.flags,
-		.baud_base = 921600,
-		.close_delay = info->port.close_delay
-	};
-	return copy_to_user(retinfo, &tmp, sizeof(*retinfo)) ? -EFAULT : 0;
-}
-
-
-static int moxa_set_serial_info(struct moxa_port *info,
-		struct serial_struct __user *new_info)
-{
-	struct serial_struct new_serial;
-
-	if (copy_from_user(&new_serial, new_info, sizeof(new_serial)))
-		return -EFAULT;
-
-	if (new_serial.irq != 0 || new_serial.port != 0 ||
-			new_serial.custom_divisor != 0 ||
-			new_serial.baud_base != 921600)
-		return -EPERM;
-
-	if (!capable(CAP_SYS_ADMIN)) {
-		if (((new_serial.flags & ~ASYNC_USR_MASK) !=
-		     (info->port.flags & ~ASYNC_USR_MASK)))
-			return -EPERM;
-	} else
-		info->port.close_delay = new_serial.close_delay * HZ / 100;
-
-	new_serial.flags = (new_serial.flags & ~ASYNC_FLAGS);
-	new_serial.flags |= (info->port.flags & ASYNC_FLAGS);
-
-	MoxaSetFifo(info, new_serial.type == PORT_16550A);
-
-	info->type = new_serial.type;
-	return 0;
-}
-
-
-
-/*****************************************************************************
- *	Static local functions: 					     *
- *****************************************************************************/
-
-static void MoxaSetFifo(struct moxa_port *port, int enable)
-{
-	void __iomem *ofsAddr = port->tableAddr;
-
-	if (!enable) {
-		moxafunc(ofsAddr, FC_SetRxFIFOTrig, 0);
-		moxafunc(ofsAddr, FC_SetTxFIFOCnt, 1);
-	} else {
-		moxafunc(ofsAddr, FC_SetRxFIFOTrig, 3);
-		moxafunc(ofsAddr, FC_SetTxFIFOCnt, 16);
-	}
-}
diff --git a/drivers/char/moxa.h b/drivers/char/moxa.h
deleted file mode 100644
index 87d16ce57be7..000000000000
--- a/drivers/char/moxa.h
+++ /dev/null
@@ -1,304 +0,0 @@
-#ifndef MOXA_H_FILE
-#define MOXA_H_FILE
-
-#define	MOXA		0x400
-#define MOXA_GET_IQUEUE 	(MOXA + 1)	/* get input buffered count */
-#define MOXA_GET_OQUEUE 	(MOXA + 2)	/* get output buffered count */
-#define MOXA_GETDATACOUNT       (MOXA + 23)
-#define MOXA_GET_IOQUEUE	(MOXA + 27)
-#define MOXA_FLUSH_QUEUE	(MOXA + 28)
-#define MOXA_GETMSTATUS         (MOXA + 65)
-
-/*
- *    System Configuration
- */
-
-#define Magic_code	0x404
-
-/*
- *    for C218 BIOS initialization
- */
-#define C218_ConfBase	0x800
-#define C218_status	(C218_ConfBase + 0)	/* BIOS running status    */
-#define C218_diag	(C218_ConfBase + 2)	/* diagnostic status      */
-#define C218_key	(C218_ConfBase + 4)	/* WORD (0x218 for C218) */
-#define C218DLoad_len	(C218_ConfBase + 6)	/* WORD           */
-#define C218check_sum	(C218_ConfBase + 8)	/* BYTE           */
-#define C218chksum_ok	(C218_ConfBase + 0x0a)	/* BYTE (1:ok)            */
-#define C218_TestRx	(C218_ConfBase + 0x10)	/* 8 bytes for 8 ports    */
-#define C218_TestTx	(C218_ConfBase + 0x18)	/* 8 bytes for 8 ports    */
-#define C218_RXerr	(C218_ConfBase + 0x20)	/* 8 bytes for 8 ports    */
-#define C218_ErrFlag	(C218_ConfBase + 0x28)	/* 8 bytes for 8 ports    */
-
-#define C218_LoadBuf	0x0F00
-#define C218_KeyCode	0x218
-#define CP204J_KeyCode	0x204
-
-/*
- *    for C320 BIOS initialization
- */
-#define C320_ConfBase	0x800
-#define C320_LoadBuf	0x0f00
-#define STS_init	0x05	/* for C320_status        */
-
-#define C320_status	C320_ConfBase + 0	/* BIOS running status    */
-#define C320_diag	C320_ConfBase + 2	/* diagnostic status      */
-#define C320_key	C320_ConfBase + 4	/* WORD (0320H for C320) */
-#define C320DLoad_len	C320_ConfBase + 6	/* WORD           */
-#define C320check_sum	C320_ConfBase + 8	/* WORD           */
-#define C320chksum_ok	C320_ConfBase + 0x0a	/* WORD (1:ok)            */
-#define C320bapi_len	C320_ConfBase + 0x0c	/* WORD           */
-#define C320UART_no	C320_ConfBase + 0x0e	/* WORD           */
-
-#define C320_KeyCode	0x320
-
-#define FixPage_addr	0x0000	/* starting addr of static page  */
-#define DynPage_addr	0x2000	/* starting addr of dynamic page */
-#define C218_start	0x3000	/* starting addr of C218 BIOS prg */
-#define Control_reg	0x1ff0	/* select page and reset control */
-#define HW_reset	0x80
-
-/*
- *    Function Codes
- */
-#define FC_CardReset	0x80
-#define FC_ChannelReset 1	/* C320 firmware not supported */
-#define FC_EnableCH	2
-#define FC_DisableCH	3
-#define FC_SetParam	4
-#define FC_SetMode	5
-#define FC_SetRate	6
-#define FC_LineControl	7
-#define FC_LineStatus	8
-#define FC_XmitControl	9
-#define FC_FlushQueue	10
-#define FC_SendBreak	11
-#define FC_StopBreak	12
-#define FC_LoopbackON	13
-#define FC_LoopbackOFF	14
-#define FC_ClrIrqTable	15
-#define FC_SendXon	16
-#define FC_SetTermIrq	17	/* C320 firmware not supported */
-#define FC_SetCntIrq	18	/* C320 firmware not supported */
-#define FC_SetBreakIrq	19
-#define FC_SetLineIrq	20
-#define FC_SetFlowCtl	21
-#define FC_GenIrq	22
-#define FC_InCD180	23
-#define FC_OutCD180	24
-#define FC_InUARTreg	23
-#define FC_OutUARTreg	24
-#define FC_SetXonXoff	25
-#define FC_OutCD180CCR	26
-#define FC_ExtIQueue	27
-#define FC_ExtOQueue	28
-#define FC_ClrLineIrq	29
-#define FC_HWFlowCtl	30
-#define FC_GetClockRate 35
-#define FC_SetBaud	36
-#define FC_SetDataMode  41
-#define FC_GetCCSR      43
-#define FC_GetDataError 45
-#define FC_RxControl	50
-#define FC_ImmSend	51
-#define FC_SetXonState	52
-#define FC_SetXoffState	53
-#define FC_SetRxFIFOTrig 54
-#define FC_SetTxFIFOCnt 55
-#define FC_UnixRate	56
-#define FC_UnixResetTimer 57
-
-#define	RxFIFOTrig1	0
-#define	RxFIFOTrig4	1
-#define	RxFIFOTrig8	2
-#define	RxFIFOTrig14	3
-
-/*
- *    Dual-Ported RAM
- */
-#define DRAM_global	0
-#define INT_data	(DRAM_global + 0)
-#define Config_base	(DRAM_global + 0x108)
-
-#define IRQindex	(INT_data + 0)
-#define IRQpending	(INT_data + 4)
-#define IRQtable	(INT_data + 8)
-
-/*
- *    Interrupt Status
- */
-#define IntrRx		0x01	/* receiver data O.K.             */
-#define IntrTx		0x02	/* transmit buffer empty  */
-#define IntrFunc	0x04	/* function complete              */
-#define IntrBreak	0x08	/* received break         */
-#define IntrLine	0x10	/* line status change
-				   for transmitter                */
-#define IntrIntr	0x20	/* received INTR code             */
-#define IntrQuit	0x40	/* received QUIT code             */
-#define IntrEOF 	0x80	/* received EOF code              */
-
-#define IntrRxTrigger 	0x100	/* rx data count reach tigger value */
-#define IntrTxTrigger 	0x200	/* tx data count below trigger value */
-
-#define Magic_no	(Config_base + 0)
-#define Card_model_no	(Config_base + 2)
-#define Total_ports	(Config_base + 4)
-#define Module_cnt	(Config_base + 8)
-#define Module_no	(Config_base + 10)
-#define Timer_10ms	(Config_base + 14)
-#define Disable_IRQ	(Config_base + 20)
-#define TMS320_PORT1	(Config_base + 22)
-#define TMS320_PORT2	(Config_base + 24)
-#define TMS320_CLOCK	(Config_base + 26)
-
-/*
- *    DATA BUFFER in DRAM
- */
-#define Extern_table	0x400	/* Base address of the external table
-				   (24 words *    64) total 3K bytes
-				   (24 words * 128) total 6K bytes */
-#define Extern_size	0x60	/* 96 bytes                       */
-#define RXrptr		0x00	/* read pointer for RX buffer     */
-#define RXwptr		0x02	/* write pointer for RX buffer    */
-#define TXrptr		0x04	/* read pointer for TX buffer     */
-#define TXwptr		0x06	/* write pointer for TX buffer    */
-#define HostStat	0x08	/* IRQ flag and general flag      */
-#define FlagStat	0x0A
-#define FlowControl	0x0C	/* B7 B6 B5 B4 B3 B2 B1 B0              */
-				/*  x  x  x  x  |  |  |  |            */
-				/*              |  |  |  + CTS flow   */
-				/*              |  |  +--- RTS flow   */
-				/*              |  +------ TX Xon/Xoff */
-				/*              +--------- RX Xon/Xoff */
-#define Break_cnt	0x0E	/* received break count   */
-#define CD180TXirq	0x10	/* if non-0: enable TX irq        */
-#define RX_mask 	0x12
-#define TX_mask 	0x14
-#define Ofs_rxb 	0x16
-#define Ofs_txb 	0x18
-#define Page_rxb	0x1A
-#define Page_txb	0x1C
-#define EndPage_rxb	0x1E
-#define EndPage_txb	0x20
-#define Data_error	0x22
-#define RxTrigger	0x28
-#define TxTrigger	0x2a
-
-#define rRXwptr 	0x34
-#define Low_water	0x36
-
-#define FuncCode	0x40
-#define FuncArg 	0x42
-#define FuncArg1	0x44
-
-#define C218rx_size	0x2000	/* 8K bytes */
-#define C218tx_size	0x8000	/* 32K bytes */
-
-#define C218rx_mask	(C218rx_size - 1)
-#define C218tx_mask	(C218tx_size - 1)
-
-#define C320p8rx_size	0x2000
-#define C320p8tx_size	0x8000
-#define C320p8rx_mask	(C320p8rx_size - 1)
-#define C320p8tx_mask	(C320p8tx_size - 1)
-
-#define C320p16rx_size	0x2000
-#define C320p16tx_size	0x4000
-#define C320p16rx_mask	(C320p16rx_size - 1)
-#define C320p16tx_mask	(C320p16tx_size - 1)
-
-#define C320p24rx_size	0x2000
-#define C320p24tx_size	0x2000
-#define C320p24rx_mask	(C320p24rx_size - 1)
-#define C320p24tx_mask	(C320p24tx_size - 1)
-
-#define C320p32rx_size	0x1000
-#define C320p32tx_size	0x1000
-#define C320p32rx_mask	(C320p32rx_size - 1)
-#define C320p32tx_mask	(C320p32tx_size - 1)
-
-#define Page_size	0x2000U
-#define Page_mask	(Page_size - 1)
-#define C218rx_spage	3
-#define C218tx_spage	4
-#define C218rx_pageno	1
-#define C218tx_pageno	4
-#define C218buf_pageno	5
-
-#define C320p8rx_spage	3
-#define C320p8tx_spage	4
-#define C320p8rx_pgno	1
-#define C320p8tx_pgno	4
-#define C320p8buf_pgno	5
-
-#define C320p16rx_spage 3
-#define C320p16tx_spage 4
-#define C320p16rx_pgno	1
-#define C320p16tx_pgno	2
-#define C320p16buf_pgno 3
-
-#define C320p24rx_spage 3
-#define C320p24tx_spage 4
-#define C320p24rx_pgno	1
-#define C320p24tx_pgno	1
-#define C320p24buf_pgno 2
-
-#define C320p32rx_spage 3
-#define C320p32tx_ofs	C320p32rx_size
-#define C320p32tx_spage 3
-#define C320p32buf_pgno 1
-
-/*
- *    Host Status
- */
-#define WakeupRx	0x01
-#define WakeupTx	0x02
-#define WakeupBreak	0x08
-#define WakeupLine	0x10
-#define WakeupIntr	0x20
-#define WakeupQuit	0x40
-#define WakeupEOF	0x80	/* used in VTIME control */
-#define WakeupRxTrigger	0x100
-#define WakeupTxTrigger	0x200
-/*
- *    Flag status
- */
-#define Rx_over		0x01
-#define Xoff_state	0x02
-#define Tx_flowOff	0x04
-#define Tx_enable	0x08
-#define CTS_state	0x10
-#define DSR_state	0x20
-#define DCD_state	0x80
-/*
- *    FlowControl
- */
-#define CTS_FlowCtl	1
-#define RTS_FlowCtl	2
-#define Tx_FlowCtl	4
-#define Rx_FlowCtl	8
-#define IXM_IXANY	0x10
-
-#define LowWater	128
-
-#define DTR_ON		1
-#define RTS_ON		2
-#define CTS_ON		1
-#define DSR_ON		2
-#define DCD_ON		8
-
-/* mode definition */
-#define	MX_CS8		0x03
-#define	MX_CS7		0x02
-#define	MX_CS6		0x01
-#define	MX_CS5		0x00
-
-#define	MX_STOP1	0x00
-#define	MX_STOP15	0x04
-#define	MX_STOP2	0x08
-
-#define	MX_PARNONE	0x00
-#define	MX_PAREVEN	0x40
-#define	MX_PARODD	0xC0
-
-#endif
diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c
deleted file mode 100644
index d188f378684d..000000000000
--- a/drivers/char/mxser.c
+++ /dev/null
@@ -1,2757 +0,0 @@
-/*
- *          mxser.c  -- MOXA Smartio/Industio family multiport serial driver.
- *
- *      Copyright (C) 1999-2006  Moxa Technologies (support@moxa.com).
- *	Copyright (C) 2006-2008  Jiri Slaby <jirislaby@gmail.com>
- *
- *      This code is loosely based on the 1.8 moxa driver which is based on
- *	Linux serial driver, written by Linus Torvalds, Theodore T'so and
- *	others.
- *
- *      This program is free software; you can redistribute it and/or modify
- *      it under the terms of the GNU General Public License as published by
- *      the Free Software Foundation; either version 2 of the License, or
- *      (at your option) any later version.
- *
- *	Fed through a cleanup, indent and remove of non 2.6 code by Alan Cox
- *	<alan@lxorguk.ukuu.org.uk>. The original 1.8 code is available on
- *	www.moxa.com.
- *	- Fixed x86_64 cleanness
- */
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/serial.h>
-#include <linux/serial_reg.h>
-#include <linux/major.h>
-#include <linux/string.h>
-#include <linux/fcntl.h>
-#include <linux/ptrace.h>
-#include <linux/ioport.h>
-#include <linux/mm.h>
-#include <linux/delay.h>
-#include <linux/pci.h>
-#include <linux/bitops.h>
-#include <linux/slab.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/uaccess.h>
-
-#include "mxser.h"
-
-#define	MXSER_VERSION	"2.0.5"		/* 1.14 */
-#define	MXSERMAJOR	 174
-
-#define MXSER_BOARDS		4	/* Max. boards */
-#define MXSER_PORTS_PER_BOARD	8	/* Max. ports per board */
-#define MXSER_PORTS		(MXSER_BOARDS * MXSER_PORTS_PER_BOARD)
-#define MXSER_ISR_PASS_LIMIT	100
-
-/*CheckIsMoxaMust return value*/
-#define MOXA_OTHER_UART		0x00
-#define MOXA_MUST_MU150_HWID	0x01
-#define MOXA_MUST_MU860_HWID	0x02
-
-#define WAKEUP_CHARS		256
-
-#define UART_MCR_AFE		0x20
-#define UART_LSR_SPECIAL	0x1E
-
-#define PCI_DEVICE_ID_POS104UL	0x1044
-#define PCI_DEVICE_ID_CB108	0x1080
-#define PCI_DEVICE_ID_CP102UF	0x1023
-#define PCI_DEVICE_ID_CP112UL	0x1120
-#define PCI_DEVICE_ID_CB114	0x1142
-#define PCI_DEVICE_ID_CP114UL	0x1143
-#define PCI_DEVICE_ID_CB134I	0x1341
-#define PCI_DEVICE_ID_CP138U	0x1380
-
-
-#define C168_ASIC_ID    1
-#define C104_ASIC_ID    2
-#define C102_ASIC_ID	0xB
-#define CI132_ASIC_ID	4
-#define CI134_ASIC_ID	3
-#define CI104J_ASIC_ID  5
-
-#define MXSER_HIGHBAUD	1
-#define MXSER_HAS2	2
-
-/* This is only for PCI */
-static const struct {
-	int type;
-	int tx_fifo;
-	int rx_fifo;
-	int xmit_fifo_size;
-	int rx_high_water;
-	int rx_trigger;
-	int rx_low_water;
-	long max_baud;
-} Gpci_uart_info[] = {
-	{MOXA_OTHER_UART, 16, 16, 16, 14, 14, 1, 921600L},
-	{MOXA_MUST_MU150_HWID, 64, 64, 64, 48, 48, 16, 230400L},
-	{MOXA_MUST_MU860_HWID, 128, 128, 128, 96, 96, 32, 921600L}
-};
-#define UART_INFO_NUM	ARRAY_SIZE(Gpci_uart_info)
-
-struct mxser_cardinfo {
-	char *name;
-	unsigned int nports;
-	unsigned int flags;
-};
-
-static const struct mxser_cardinfo mxser_cards[] = {
-/* 0*/	{ "C168 series",	8, },
-	{ "C104 series",	4, },
-	{ "CI-104J series",	4, },
-	{ "C168H/PCI series",	8, },
-	{ "C104H/PCI series",	4, },
-/* 5*/	{ "C102 series",	4, MXSER_HAS2 },	/* C102-ISA */
-	{ "CI-132 series",	4, MXSER_HAS2 },
-	{ "CI-134 series",	4, },
-	{ "CP-132 series",	2, },
-	{ "CP-114 series",	4, },
-/*10*/	{ "CT-114 series",	4, },
-	{ "CP-102 series",	2, MXSER_HIGHBAUD },
-	{ "CP-104U series",	4, },
-	{ "CP-168U series",	8, },
-	{ "CP-132U series",	2, },
-/*15*/	{ "CP-134U series",	4, },
-	{ "CP-104JU series",	4, },
-	{ "Moxa UC7000 Serial",	8, },		/* RC7000 */
-	{ "CP-118U series",	8, },
-	{ "CP-102UL series",	2, },
-/*20*/	{ "CP-102U series",	2, },
-	{ "CP-118EL series",	8, },
-	{ "CP-168EL series",	8, },
-	{ "CP-104EL series",	4, },
-	{ "CB-108 series",	8, },
-/*25*/	{ "CB-114 series",	4, },
-	{ "CB-134I series",	4, },
-	{ "CP-138U series",	8, },
-	{ "POS-104UL series",	4, },
-	{ "CP-114UL series",	4, },
-/*30*/	{ "CP-102UF series",	2, },
-	{ "CP-112UL series",	2, },
-};
-
-/* driver_data correspond to the lines in the structure above
-   see also ISA probe function before you change something */
-static struct pci_device_id mxser_pcibrds[] = {
-	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_C168),	.driver_data = 3 },
-	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_C104),	.driver_data = 4 },
-	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP132),	.driver_data = 8 },
-	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP114),	.driver_data = 9 },
-	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CT114),	.driver_data = 10 },
-	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP102),	.driver_data = 11 },
-	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP104U),	.driver_data = 12 },
-	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP168U),	.driver_data = 13 },
-	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP132U),	.driver_data = 14 },
-	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP134U),	.driver_data = 15 },
-	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP104JU),.driver_data = 16 },
-	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_RC7000),	.driver_data = 17 },
-	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP118U),	.driver_data = 18 },
-	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP102UL),.driver_data = 19 },
-	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP102U),	.driver_data = 20 },
-	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP118EL),.driver_data = 21 },
-	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP168EL),.driver_data = 22 },
-	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP104EL),.driver_data = 23 },
-	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_CB108),	.driver_data = 24 },
-	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_CB114),	.driver_data = 25 },
-	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_CB134I),	.driver_data = 26 },
-	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_CP138U),	.driver_data = 27 },
-	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_POS104UL),	.driver_data = 28 },
-	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_CP114UL),	.driver_data = 29 },
-	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_CP102UF),	.driver_data = 30 },
-	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_CP112UL),	.driver_data = 31 },
-	{ }
-};
-MODULE_DEVICE_TABLE(pci, mxser_pcibrds);
-
-static unsigned long ioaddr[MXSER_BOARDS];
-static int ttymajor = MXSERMAJOR;
-
-/* Variables for insmod */
-
-MODULE_AUTHOR("Casper Yang");
-MODULE_DESCRIPTION("MOXA Smartio/Industio Family Multiport Board Device Driver");
-module_param_array(ioaddr, ulong, NULL, 0);
-MODULE_PARM_DESC(ioaddr, "ISA io addresses to look for a moxa board");
-module_param(ttymajor, int, 0);
-MODULE_LICENSE("GPL");
-
-struct mxser_log {
-	int tick;
-	unsigned long rxcnt[MXSER_PORTS];
-	unsigned long txcnt[MXSER_PORTS];
-};
-
-struct mxser_mon {
-	unsigned long rxcnt;
-	unsigned long txcnt;
-	unsigned long up_rxcnt;
-	unsigned long up_txcnt;
-	int modem_status;
-	unsigned char hold_reason;
-};
-
-struct mxser_mon_ext {
-	unsigned long rx_cnt[32];
-	unsigned long tx_cnt[32];
-	unsigned long up_rxcnt[32];
-	unsigned long up_txcnt[32];
-	int modem_status[32];
-
-	long baudrate[32];
-	int databits[32];
-	int stopbits[32];
-	int parity[32];
-	int flowctrl[32];
-	int fifo[32];
-	int iftype[32];
-};
-
-struct mxser_board;
-
-struct mxser_port {
-	struct tty_port port;
-	struct mxser_board *board;
-
-	unsigned long ioaddr;
-	unsigned long opmode_ioaddr;
-	int max_baud;
-
-	int rx_high_water;
-	int rx_trigger;		/* Rx fifo trigger level */
-	int rx_low_water;
-	int baud_base;		/* max. speed */
-	int type;		/* UART type */
-
-	int x_char;		/* xon/xoff character */
-	int IER;		/* Interrupt Enable Register */
-	int MCR;		/* Modem control register */
-
-	unsigned char stop_rx;
-	unsigned char ldisc_stop_rx;
-
-	int custom_divisor;
-	unsigned char err_shadow;
-
-	struct async_icount icount; /* kernel counters for 4 input interrupts */
-	int timeout;
-
-	int read_status_mask;
-	int ignore_status_mask;
-	int xmit_fifo_size;
-	int xmit_head;
-	int xmit_tail;
-	int xmit_cnt;
-
-	struct ktermios normal_termios;
-
-	struct mxser_mon mon_data;
-
-	spinlock_t slock;
-};
-
-struct mxser_board {
-	unsigned int idx;
-	int irq;
-	const struct mxser_cardinfo *info;
-	unsigned long vector;
-	unsigned long vector_mask;
-
-	int chip_flag;
-	int uart_type;
-
-	struct mxser_port ports[MXSER_PORTS_PER_BOARD];
-};
-
-struct mxser_mstatus {
-	tcflag_t cflag;
-	int cts;
-	int dsr;
-	int ri;
-	int dcd;
-};
-
-static struct mxser_board mxser_boards[MXSER_BOARDS];
-static struct tty_driver *mxvar_sdriver;
-static struct mxser_log mxvar_log;
-static int mxser_set_baud_method[MXSER_PORTS + 1];
-
-static void mxser_enable_must_enchance_mode(unsigned long baseio)
-{
-	u8 oldlcr;
-	u8 efr;
-
-	oldlcr = inb(baseio + UART_LCR);
-	outb(MOXA_MUST_ENTER_ENCHANCE, baseio + UART_LCR);
-
-	efr = inb(baseio + MOXA_MUST_EFR_REGISTER);
-	efr |= MOXA_MUST_EFR_EFRB_ENABLE;
-
-	outb(efr, baseio + MOXA_MUST_EFR_REGISTER);
-	outb(oldlcr, baseio + UART_LCR);
-}
-
-#ifdef	CONFIG_PCI
-static void mxser_disable_must_enchance_mode(unsigned long baseio)
-{
-	u8 oldlcr;
-	u8 efr;
-
-	oldlcr = inb(baseio + UART_LCR);
-	outb(MOXA_MUST_ENTER_ENCHANCE, baseio + UART_LCR);
-
-	efr = inb(baseio + MOXA_MUST_EFR_REGISTER);
-	efr &= ~MOXA_MUST_EFR_EFRB_ENABLE;
-
-	outb(efr, baseio + MOXA_MUST_EFR_REGISTER);
-	outb(oldlcr, baseio + UART_LCR);
-}
-#endif
-
-static void mxser_set_must_xon1_value(unsigned long baseio, u8 value)
-{
-	u8 oldlcr;
-	u8 efr;
-
-	oldlcr = inb(baseio + UART_LCR);
-	outb(MOXA_MUST_ENTER_ENCHANCE, baseio + UART_LCR);
-
-	efr = inb(baseio + MOXA_MUST_EFR_REGISTER);
-	efr &= ~MOXA_MUST_EFR_BANK_MASK;
-	efr |= MOXA_MUST_EFR_BANK0;
-
-	outb(efr, baseio + MOXA_MUST_EFR_REGISTER);
-	outb(value, baseio + MOXA_MUST_XON1_REGISTER);
-	outb(oldlcr, baseio + UART_LCR);
-}
-
-static void mxser_set_must_xoff1_value(unsigned long baseio, u8 value)
-{
-	u8 oldlcr;
-	u8 efr;
-
-	oldlcr = inb(baseio + UART_LCR);
-	outb(MOXA_MUST_ENTER_ENCHANCE, baseio + UART_LCR);
-
-	efr = inb(baseio + MOXA_MUST_EFR_REGISTER);
-	efr &= ~MOXA_MUST_EFR_BANK_MASK;
-	efr |= MOXA_MUST_EFR_BANK0;
-
-	outb(efr, baseio + MOXA_MUST_EFR_REGISTER);
-	outb(value, baseio + MOXA_MUST_XOFF1_REGISTER);
-	outb(oldlcr, baseio + UART_LCR);
-}
-
-static void mxser_set_must_fifo_value(struct mxser_port *info)
-{
-	u8 oldlcr;
-	u8 efr;
-
-	oldlcr = inb(info->ioaddr + UART_LCR);
-	outb(MOXA_MUST_ENTER_ENCHANCE, info->ioaddr + UART_LCR);
-
-	efr = inb(info->ioaddr + MOXA_MUST_EFR_REGISTER);
-	efr &= ~MOXA_MUST_EFR_BANK_MASK;
-	efr |= MOXA_MUST_EFR_BANK1;
-
-	outb(efr, info->ioaddr + MOXA_MUST_EFR_REGISTER);
-	outb((u8)info->rx_high_water, info->ioaddr + MOXA_MUST_RBRTH_REGISTER);
-	outb((u8)info->rx_trigger, info->ioaddr + MOXA_MUST_RBRTI_REGISTER);
-	outb((u8)info->rx_low_water, info->ioaddr + MOXA_MUST_RBRTL_REGISTER);
-	outb(oldlcr, info->ioaddr + UART_LCR);
-}
-
-static void mxser_set_must_enum_value(unsigned long baseio, u8 value)
-{
-	u8 oldlcr;
-	u8 efr;
-
-	oldlcr = inb(baseio + UART_LCR);
-	outb(MOXA_MUST_ENTER_ENCHANCE, baseio + UART_LCR);
-
-	efr = inb(baseio + MOXA_MUST_EFR_REGISTER);
-	efr &= ~MOXA_MUST_EFR_BANK_MASK;
-	efr |= MOXA_MUST_EFR_BANK2;
-
-	outb(efr, baseio + MOXA_MUST_EFR_REGISTER);
-	outb(value, baseio + MOXA_MUST_ENUM_REGISTER);
-	outb(oldlcr, baseio + UART_LCR);
-}
-
-#ifdef CONFIG_PCI
-static void mxser_get_must_hardware_id(unsigned long baseio, u8 *pId)
-{
-	u8 oldlcr;
-	u8 efr;
-
-	oldlcr = inb(baseio + UART_LCR);
-	outb(MOXA_MUST_ENTER_ENCHANCE, baseio + UART_LCR);
-
-	efr = inb(baseio + MOXA_MUST_EFR_REGISTER);
-	efr &= ~MOXA_MUST_EFR_BANK_MASK;
-	efr |= MOXA_MUST_EFR_BANK2;
-
-	outb(efr, baseio + MOXA_MUST_EFR_REGISTER);
-	*pId = inb(baseio + MOXA_MUST_HWID_REGISTER);
-	outb(oldlcr, baseio + UART_LCR);
-}
-#endif
-
-static void SET_MOXA_MUST_NO_SOFTWARE_FLOW_CONTROL(unsigned long baseio)
-{
-	u8 oldlcr;
-	u8 efr;
-
-	oldlcr = inb(baseio + UART_LCR);
-	outb(MOXA_MUST_ENTER_ENCHANCE, baseio + UART_LCR);
-
-	efr = inb(baseio + MOXA_MUST_EFR_REGISTER);
-	efr &= ~MOXA_MUST_EFR_SF_MASK;
-
-	outb(efr, baseio + MOXA_MUST_EFR_REGISTER);
-	outb(oldlcr, baseio + UART_LCR);
-}
-
-static void mxser_enable_must_tx_software_flow_control(unsigned long baseio)
-{
-	u8 oldlcr;
-	u8 efr;
-
-	oldlcr = inb(baseio + UART_LCR);
-	outb(MOXA_MUST_ENTER_ENCHANCE, baseio + UART_LCR);
-
-	efr = inb(baseio + MOXA_MUST_EFR_REGISTER);
-	efr &= ~MOXA_MUST_EFR_SF_TX_MASK;
-	efr |= MOXA_MUST_EFR_SF_TX1;
-
-	outb(efr, baseio + MOXA_MUST_EFR_REGISTER);
-	outb(oldlcr, baseio + UART_LCR);
-}
-
-static void mxser_disable_must_tx_software_flow_control(unsigned long baseio)
-{
-	u8 oldlcr;
-	u8 efr;
-
-	oldlcr = inb(baseio + UART_LCR);
-	outb(MOXA_MUST_ENTER_ENCHANCE, baseio + UART_LCR);
-
-	efr = inb(baseio + MOXA_MUST_EFR_REGISTER);
-	efr &= ~MOXA_MUST_EFR_SF_TX_MASK;
-
-	outb(efr, baseio + MOXA_MUST_EFR_REGISTER);
-	outb(oldlcr, baseio + UART_LCR);
-}
-
-static void mxser_enable_must_rx_software_flow_control(unsigned long baseio)
-{
-	u8 oldlcr;
-	u8 efr;
-
-	oldlcr = inb(baseio + UART_LCR);
-	outb(MOXA_MUST_ENTER_ENCHANCE, baseio + UART_LCR);
-
-	efr = inb(baseio + MOXA_MUST_EFR_REGISTER);
-	efr &= ~MOXA_MUST_EFR_SF_RX_MASK;
-	efr |= MOXA_MUST_EFR_SF_RX1;
-
-	outb(efr, baseio + MOXA_MUST_EFR_REGISTER);
-	outb(oldlcr, baseio + UART_LCR);
-}
-
-static void mxser_disable_must_rx_software_flow_control(unsigned long baseio)
-{
-	u8 oldlcr;
-	u8 efr;
-
-	oldlcr = inb(baseio + UART_LCR);
-	outb(MOXA_MUST_ENTER_ENCHANCE, baseio + UART_LCR);
-
-	efr = inb(baseio + MOXA_MUST_EFR_REGISTER);
-	efr &= ~MOXA_MUST_EFR_SF_RX_MASK;
-
-	outb(efr, baseio + MOXA_MUST_EFR_REGISTER);
-	outb(oldlcr, baseio + UART_LCR);
-}
-
-#ifdef CONFIG_PCI
-static int __devinit CheckIsMoxaMust(unsigned long io)
-{
-	u8 oldmcr, hwid;
-	int i;
-
-	outb(0, io + UART_LCR);
-	mxser_disable_must_enchance_mode(io);
-	oldmcr = inb(io + UART_MCR);
-	outb(0, io + UART_MCR);
-	mxser_set_must_xon1_value(io, 0x11);
-	if ((hwid = inb(io + UART_MCR)) != 0) {
-		outb(oldmcr, io + UART_MCR);
-		return MOXA_OTHER_UART;
-	}
-
-	mxser_get_must_hardware_id(io, &hwid);
-	for (i = 1; i < UART_INFO_NUM; i++) { /* 0 = OTHER_UART */
-		if (hwid == Gpci_uart_info[i].type)
-			return (int)hwid;
-	}
-	return MOXA_OTHER_UART;
-}
-#endif
-
-static void process_txrx_fifo(struct mxser_port *info)
-{
-	int i;
-
-	if ((info->type == PORT_16450) || (info->type == PORT_8250)) {
-		info->rx_trigger = 1;
-		info->rx_high_water = 1;
-		info->rx_low_water = 1;
-		info->xmit_fifo_size = 1;
-	} else
-		for (i = 0; i < UART_INFO_NUM; i++)
-			if (info->board->chip_flag == Gpci_uart_info[i].type) {
-				info->rx_trigger = Gpci_uart_info[i].rx_trigger;
-				info->rx_low_water = Gpci_uart_info[i].rx_low_water;
-				info->rx_high_water = Gpci_uart_info[i].rx_high_water;
-				info->xmit_fifo_size = Gpci_uart_info[i].xmit_fifo_size;
-				break;
-			}
-}
-
-static unsigned char mxser_get_msr(int baseaddr, int mode, int port)
-{
-	static unsigned char mxser_msr[MXSER_PORTS + 1];
-	unsigned char status = 0;
-
-	status = inb(baseaddr + UART_MSR);
-
-	mxser_msr[port] &= 0x0F;
-	mxser_msr[port] |= status;
-	status = mxser_msr[port];
-	if (mode)
-		mxser_msr[port] = 0;
-
-	return status;
-}
-
-static int mxser_carrier_raised(struct tty_port *port)
-{
-	struct mxser_port *mp = container_of(port, struct mxser_port, port);
-	return (inb(mp->ioaddr + UART_MSR) & UART_MSR_DCD)?1:0;
-}
-
-static void mxser_dtr_rts(struct tty_port *port, int on)
-{
-	struct mxser_port *mp = container_of(port, struct mxser_port, port);
-	unsigned long flags;
-
-	spin_lock_irqsave(&mp->slock, flags);
-	if (on)
-		outb(inb(mp->ioaddr + UART_MCR) |
-			UART_MCR_DTR | UART_MCR_RTS, mp->ioaddr + UART_MCR);
-	else
-		outb(inb(mp->ioaddr + UART_MCR)&~(UART_MCR_DTR | UART_MCR_RTS),
-			mp->ioaddr + UART_MCR);
-	spin_unlock_irqrestore(&mp->slock, flags);
-}
-
-static int mxser_set_baud(struct tty_struct *tty, long newspd)
-{
-	struct mxser_port *info = tty->driver_data;
-	int quot = 0, baud;
-	unsigned char cval;
-
-	if (!info->ioaddr)
-		return -1;
-
-	if (newspd > info->max_baud)
-		return -1;
-
-	if (newspd == 134) {
-		quot = 2 * info->baud_base / 269;
-		tty_encode_baud_rate(tty, 134, 134);
-	} else if (newspd) {
-		quot = info->baud_base / newspd;
-		if (quot == 0)
-			quot = 1;
-		baud = info->baud_base/quot;
-		tty_encode_baud_rate(tty, baud, baud);
-	} else {
-		quot = 0;
-	}
-
-	info->timeout = ((info->xmit_fifo_size * HZ * 10 * quot) / info->baud_base);
-	info->timeout += HZ / 50;	/* Add .02 seconds of slop */
-
-	if (quot) {
-		info->MCR |= UART_MCR_DTR;
-		outb(info->MCR, info->ioaddr + UART_MCR);
-	} else {
-		info->MCR &= ~UART_MCR_DTR;
-		outb(info->MCR, info->ioaddr + UART_MCR);
-		return 0;
-	}
-
-	cval = inb(info->ioaddr + UART_LCR);
-
-	outb(cval | UART_LCR_DLAB, info->ioaddr + UART_LCR);	/* set DLAB */
-
-	outb(quot & 0xff, info->ioaddr + UART_DLL);	/* LS of divisor */
-	outb(quot >> 8, info->ioaddr + UART_DLM);	/* MS of divisor */
-	outb(cval, info->ioaddr + UART_LCR);	/* reset DLAB */
-
-#ifdef BOTHER
-	if (C_BAUD(tty) == BOTHER) {
-		quot = info->baud_base % newspd;
-		quot *= 8;
-		if (quot % newspd > newspd / 2) {
-			quot /= newspd;
-			quot++;
-		} else
-			quot /= newspd;
-
-		mxser_set_must_enum_value(info->ioaddr, quot);
-	} else
-#endif
-		mxser_set_must_enum_value(info->ioaddr, 0);
-
-	return 0;
-}
-
-/*
- * This routine is called to set the UART divisor registers to match
- * the specified baud rate for a serial port.
- */
-static int mxser_change_speed(struct tty_struct *tty,
-					struct ktermios *old_termios)
-{
-	struct mxser_port *info = tty->driver_data;
-	unsigned cflag, cval, fcr;
-	int ret = 0;
-	unsigned char status;
-
-	cflag = tty->termios->c_cflag;
-	if (!info->ioaddr)
-		return ret;
-
-	if (mxser_set_baud_method[tty->index] == 0)
-		mxser_set_baud(tty, tty_get_baud_rate(tty));
-
-	/* byte size and parity */
-	switch (cflag & CSIZE) {
-	case CS5:
-		cval = 0x00;
-		break;
-	case CS6:
-		cval = 0x01;
-		break;
-	case CS7:
-		cval = 0x02;
-		break;
-	case CS8:
-		cval = 0x03;
-		break;
-	default:
-		cval = 0x00;
-		break;		/* too keep GCC shut... */
-	}
-	if (cflag & CSTOPB)
-		cval |= 0x04;
-	if (cflag & PARENB)
-		cval |= UART_LCR_PARITY;
-	if (!(cflag & PARODD))
-		cval |= UART_LCR_EPAR;
-	if (cflag & CMSPAR)
-		cval |= UART_LCR_SPAR;
-
-	if ((info->type == PORT_8250) || (info->type == PORT_16450)) {
-		if (info->board->chip_flag) {
-			fcr = UART_FCR_ENABLE_FIFO;
-			fcr |= MOXA_MUST_FCR_GDA_MODE_ENABLE;
-			mxser_set_must_fifo_value(info);
-		} else
-			fcr = 0;
-	} else {
-		fcr = UART_FCR_ENABLE_FIFO;
-		if (info->board->chip_flag) {
-			fcr |= MOXA_MUST_FCR_GDA_MODE_ENABLE;
-			mxser_set_must_fifo_value(info);
-		} else {
-			switch (info->rx_trigger) {
-			case 1:
-				fcr |= UART_FCR_TRIGGER_1;
-				break;
-			case 4:
-				fcr |= UART_FCR_TRIGGER_4;
-				break;
-			case 8:
-				fcr |= UART_FCR_TRIGGER_8;
-				break;
-			default:
-				fcr |= UART_FCR_TRIGGER_14;
-				break;
-			}
-		}
-	}
-
-	/* CTS flow control flag and modem status interrupts */
-	info->IER &= ~UART_IER_MSI;
-	info->MCR &= ~UART_MCR_AFE;
-	if (cflag & CRTSCTS) {
-		info->port.flags |= ASYNC_CTS_FLOW;
-		info->IER |= UART_IER_MSI;
-		if ((info->type == PORT_16550A) || (info->board->chip_flag)) {
-			info->MCR |= UART_MCR_AFE;
-		} else {
-			status = inb(info->ioaddr + UART_MSR);
-			if (tty->hw_stopped) {
-				if (status & UART_MSR_CTS) {
-					tty->hw_stopped = 0;
-					if (info->type != PORT_16550A &&
-							!info->board->chip_flag) {
-						outb(info->IER & ~UART_IER_THRI,
-							info->ioaddr +
-							UART_IER);
-						info->IER |= UART_IER_THRI;
-						outb(info->IER, info->ioaddr +
-								UART_IER);
-					}
-					tty_wakeup(tty);
-				}
-			} else {
-				if (!(status & UART_MSR_CTS)) {
-					tty->hw_stopped = 1;
-					if ((info->type != PORT_16550A) &&
-							(!info->board->chip_flag)) {
-						info->IER &= ~UART_IER_THRI;
-						outb(info->IER, info->ioaddr +
-								UART_IER);
-					}
-				}
-			}
-		}
-	} else {
-		info->port.flags &= ~ASYNC_CTS_FLOW;
-	}
-	outb(info->MCR, info->ioaddr + UART_MCR);
-	if (cflag & CLOCAL) {
-		info->port.flags &= ~ASYNC_CHECK_CD;
-	} else {
-		info->port.flags |= ASYNC_CHECK_CD;
-		info->IER |= UART_IER_MSI;
-	}
-	outb(info->IER, info->ioaddr + UART_IER);
-
-	/*
-	 * Set up parity check flag
-	 */
-	info->read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;
-	if (I_INPCK(tty))
-		info->read_status_mask |= UART_LSR_FE | UART_LSR_PE;
-	if (I_BRKINT(tty) || I_PARMRK(tty))
-		info->read_status_mask |= UART_LSR_BI;
-
-	info->ignore_status_mask = 0;
-
-	if (I_IGNBRK(tty)) {
-		info->ignore_status_mask |= UART_LSR_BI;
-		info->read_status_mask |= UART_LSR_BI;
-		/*
-		 * If we're ignore parity and break indicators, ignore
-		 * overruns too.  (For real raw support).
-		 */
-		if (I_IGNPAR(tty)) {
-			info->ignore_status_mask |=
-						UART_LSR_OE |
-						UART_LSR_PE |
-						UART_LSR_FE;
-			info->read_status_mask |=
-						UART_LSR_OE |
-						UART_LSR_PE |
-						UART_LSR_FE;
-		}
-	}
-	if (info->board->chip_flag) {
-		mxser_set_must_xon1_value(info->ioaddr, START_CHAR(tty));
-		mxser_set_must_xoff1_value(info->ioaddr, STOP_CHAR(tty));
-		if (I_IXON(tty)) {
-			mxser_enable_must_rx_software_flow_control(
-					info->ioaddr);
-		} else {
-			mxser_disable_must_rx_software_flow_control(
-					info->ioaddr);
-		}
-		if (I_IXOFF(tty)) {
-			mxser_enable_must_tx_software_flow_control(
-					info->ioaddr);
-		} else {
-			mxser_disable_must_tx_software_flow_control(
-					info->ioaddr);
-		}
-	}
-
-
-	outb(fcr, info->ioaddr + UART_FCR);	/* set fcr */
-	outb(cval, info->ioaddr + UART_LCR);
-
-	return ret;
-}
-
-static void mxser_check_modem_status(struct tty_struct *tty,
-				struct mxser_port *port, int status)
-{
-	/* update input line counters */
-	if (status & UART_MSR_TERI)
-		port->icount.rng++;
-	if (status & UART_MSR_DDSR)
-		port->icount.dsr++;
-	if (status & UART_MSR_DDCD)
-		port->icount.dcd++;
-	if (status & UART_MSR_DCTS)
-		port->icount.cts++;
-	port->mon_data.modem_status = status;
-	wake_up_interruptible(&port->port.delta_msr_wait);
-
-	if ((port->port.flags & ASYNC_CHECK_CD) && (status & UART_MSR_DDCD)) {
-		if (status & UART_MSR_DCD)
-			wake_up_interruptible(&port->port.open_wait);
-	}
-
-	if (port->port.flags & ASYNC_CTS_FLOW) {
-		if (tty->hw_stopped) {
-			if (status & UART_MSR_CTS) {
-				tty->hw_stopped = 0;
-
-				if ((port->type != PORT_16550A) &&
-						(!port->board->chip_flag)) {
-					outb(port->IER & ~UART_IER_THRI,
-						port->ioaddr + UART_IER);
-					port->IER |= UART_IER_THRI;
-					outb(port->IER, port->ioaddr +
-							UART_IER);
-				}
-				tty_wakeup(tty);
-			}
-		} else {
-			if (!(status & UART_MSR_CTS)) {
-				tty->hw_stopped = 1;
-				if (port->type != PORT_16550A &&
-						!port->board->chip_flag) {
-					port->IER &= ~UART_IER_THRI;
-					outb(port->IER, port->ioaddr +
-							UART_IER);
-				}
-			}
-		}
-	}
-}
-
-static int mxser_activate(struct tty_port *port, struct tty_struct *tty)
-{
-	struct mxser_port *info = container_of(port, struct mxser_port, port);
-	unsigned long page;
-	unsigned long flags;
-
-	page = __get_free_page(GFP_KERNEL);
-	if (!page)
-		return -ENOMEM;
-
-	spin_lock_irqsave(&info->slock, flags);
-
-	if (!info->ioaddr || !info->type) {
-		set_bit(TTY_IO_ERROR, &tty->flags);
-		free_page(page);
-		spin_unlock_irqrestore(&info->slock, flags);
-		return 0;
-	}
-	info->port.xmit_buf = (unsigned char *) page;
-
-	/*
-	 * Clear the FIFO buffers and disable them
-	 * (they will be reenabled in mxser_change_speed())
-	 */
-	if (info->board->chip_flag)
-		outb((UART_FCR_CLEAR_RCVR |
-			UART_FCR_CLEAR_XMIT |
-			MOXA_MUST_FCR_GDA_MODE_ENABLE), info->ioaddr + UART_FCR);
-	else
-		outb((UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT),
-			info->ioaddr + UART_FCR);
-
-	/*
-	 * At this point there's no way the LSR could still be 0xFF;
-	 * if it is, then bail out, because there's likely no UART
-	 * here.
-	 */
-	if (inb(info->ioaddr + UART_LSR) == 0xff) {
-		spin_unlock_irqrestore(&info->slock, flags);
-		if (capable(CAP_SYS_ADMIN)) {
-			set_bit(TTY_IO_ERROR, &tty->flags);
-			return 0;
-		} else
-			return -ENODEV;
-	}
-
-	/*
-	 * Clear the interrupt registers.
-	 */
-	(void) inb(info->ioaddr + UART_LSR);
-	(void) inb(info->ioaddr + UART_RX);
-	(void) inb(info->ioaddr + UART_IIR);
-	(void) inb(info->ioaddr + UART_MSR);
-
-	/*
-	 * Now, initialize the UART
-	 */
-	outb(UART_LCR_WLEN8, info->ioaddr + UART_LCR);	/* reset DLAB */
-	info->MCR = UART_MCR_DTR | UART_MCR_RTS;
-	outb(info->MCR, info->ioaddr + UART_MCR);
-
-	/*
-	 * Finally, enable interrupts
-	 */
-	info->IER = UART_IER_MSI | UART_IER_RLSI | UART_IER_RDI;
-
-	if (info->board->chip_flag)
-		info->IER |= MOXA_MUST_IER_EGDAI;
-	outb(info->IER, info->ioaddr + UART_IER);	/* enable interrupts */
-
-	/*
-	 * And clear the interrupt registers again for luck.
-	 */
-	(void) inb(info->ioaddr + UART_LSR);
-	(void) inb(info->ioaddr + UART_RX);
-	(void) inb(info->ioaddr + UART_IIR);
-	(void) inb(info->ioaddr + UART_MSR);
-
-	clear_bit(TTY_IO_ERROR, &tty->flags);
-	info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
-
-	/*
-	 * and set the speed of the serial port
-	 */
-	mxser_change_speed(tty, NULL);
-	spin_unlock_irqrestore(&info->slock, flags);
-
-	return 0;
-}
-
-/*
- * This routine will shutdown a serial port
- */
-static void mxser_shutdown_port(struct tty_port *port)
-{
-	struct mxser_port *info = container_of(port, struct mxser_port, port);
-	unsigned long flags;
-
-	spin_lock_irqsave(&info->slock, flags);
-
-	/*
-	 * clear delta_msr_wait queue to avoid mem leaks: we may free the irq
-	 * here so the queue might never be waken up
-	 */
-	wake_up_interruptible(&info->port.delta_msr_wait);
-
-	/*
-	 * Free the xmit buffer, if necessary
-	 */
-	if (info->port.xmit_buf) {
-		free_page((unsigned long) info->port.xmit_buf);
-		info->port.xmit_buf = NULL;
-	}
-
-	info->IER = 0;
-	outb(0x00, info->ioaddr + UART_IER);
-
-	/* clear Rx/Tx FIFO's */
-	if (info->board->chip_flag)
-		outb(UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT |
-				MOXA_MUST_FCR_GDA_MODE_ENABLE,
-				info->ioaddr + UART_FCR);
-	else
-		outb(UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT,
-			info->ioaddr + UART_FCR);
-
-	/* read data port to reset things */
-	(void) inb(info->ioaddr + UART_RX);
-
-
-	if (info->board->chip_flag)
-		SET_MOXA_MUST_NO_SOFTWARE_FLOW_CONTROL(info->ioaddr);
-
-	spin_unlock_irqrestore(&info->slock, flags);
-}
-
-/*
- * This routine is called whenever a serial port is opened.  It
- * enables interrupts for a serial port, linking in its async structure into
- * the IRQ chain.   It also performs the serial-specific
- * initialization for the tty structure.
- */
-static int mxser_open(struct tty_struct *tty, struct file *filp)
-{
-	struct mxser_port *info;
-	int line;
-
-	line = tty->index;
-	if (line == MXSER_PORTS)
-		return 0;
-	if (line < 0 || line > MXSER_PORTS)
-		return -ENODEV;
-	info = &mxser_boards[line / MXSER_PORTS_PER_BOARD].ports[line % MXSER_PORTS_PER_BOARD];
-	if (!info->ioaddr)
-		return -ENODEV;
-
-	tty->driver_data = info;
-	return tty_port_open(&info->port, tty, filp);
-}
-
-static void mxser_flush_buffer(struct tty_struct *tty)
-{
-	struct mxser_port *info = tty->driver_data;
-	char fcr;
-	unsigned long flags;
-
-
-	spin_lock_irqsave(&info->slock, flags);
-	info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
-
-	fcr = inb(info->ioaddr + UART_FCR);
-	outb((fcr | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT),
-		info->ioaddr + UART_FCR);
-	outb(fcr, info->ioaddr + UART_FCR);
-
-	spin_unlock_irqrestore(&info->slock, flags);
-
-	tty_wakeup(tty);
-}
-
-
-static void mxser_close_port(struct tty_port *port)
-{
-	struct mxser_port *info = container_of(port, struct mxser_port, port);
-	unsigned long timeout;
-	/*
-	 * At this point we stop accepting input.  To do this, we
-	 * disable the receive line status interrupts, and tell the
-	 * interrupt driver to stop checking the data ready bit in the
-	 * line status register.
-	 */
-	info->IER &= ~UART_IER_RLSI;
-	if (info->board->chip_flag)
-		info->IER &= ~MOXA_MUST_RECV_ISR;
-
-	outb(info->IER, info->ioaddr + UART_IER);
-	/*
-	 * Before we drop DTR, make sure the UART transmitter
-	 * has completely drained; this is especially
-	 * important if there is a transmit FIFO!
-	 */
-	timeout = jiffies + HZ;
-	while (!(inb(info->ioaddr + UART_LSR) & UART_LSR_TEMT)) {
-		schedule_timeout_interruptible(5);
-		if (time_after(jiffies, timeout))
-			break;
-	}
-}
-
-/*
- * This routine is called when the serial port gets closed.  First, we
- * wait for the last remaining data to be sent.  Then, we unlink its
- * async structure from the interrupt chain if necessary, and we free
- * that IRQ if nothing is left in the chain.
- */
-static void mxser_close(struct tty_struct *tty, struct file *filp)
-{
-	struct mxser_port *info = tty->driver_data;
-	struct tty_port *port = &info->port;
-
-	if (tty->index == MXSER_PORTS || info == NULL)
-		return;
-	if (tty_port_close_start(port, tty, filp) == 0)
-		return;
-	mutex_lock(&port->mutex);
-	mxser_close_port(port);
-	mxser_flush_buffer(tty);
-	mxser_shutdown_port(port);
-	clear_bit(ASYNCB_INITIALIZED, &port->flags);
-	mutex_unlock(&port->mutex);
-	/* Right now the tty_port set is done outside of the close_end helper
-	   as we don't yet have everyone using refcounts */	
-	tty_port_close_end(port, tty);
-	tty_port_tty_set(port, NULL);
-}
-
-static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int count)
-{
-	int c, total = 0;
-	struct mxser_port *info = tty->driver_data;
-	unsigned long flags;
-
-	if (!info->port.xmit_buf)
-		return 0;
-
-	while (1) {
-		c = min_t(int, count, min(SERIAL_XMIT_SIZE - info->xmit_cnt - 1,
-					  SERIAL_XMIT_SIZE - info->xmit_head));
-		if (c <= 0)
-			break;
-
-		memcpy(info->port.xmit_buf + info->xmit_head, buf, c);
-		spin_lock_irqsave(&info->slock, flags);
-		info->xmit_head = (info->xmit_head + c) &
-				  (SERIAL_XMIT_SIZE - 1);
-		info->xmit_cnt += c;
-		spin_unlock_irqrestore(&info->slock, flags);
-
-		buf += c;
-		count -= c;
-		total += c;
-	}
-
-	if (info->xmit_cnt && !tty->stopped) {
-		if (!tty->hw_stopped ||
-				(info->type == PORT_16550A) ||
-				(info->board->chip_flag)) {
-			spin_lock_irqsave(&info->slock, flags);
-			outb(info->IER & ~UART_IER_THRI, info->ioaddr +
-					UART_IER);
-			info->IER |= UART_IER_THRI;
-			outb(info->IER, info->ioaddr + UART_IER);
-			spin_unlock_irqrestore(&info->slock, flags);
-		}
-	}
-	return total;
-}
-
-static int mxser_put_char(struct tty_struct *tty, unsigned char ch)
-{
-	struct mxser_port *info = tty->driver_data;
-	unsigned long flags;
-
-	if (!info->port.xmit_buf)
-		return 0;
-
-	if (info->xmit_cnt >= SERIAL_XMIT_SIZE - 1)
-		return 0;
-
-	spin_lock_irqsave(&info->slock, flags);
-	info->port.xmit_buf[info->xmit_head++] = ch;
-	info->xmit_head &= SERIAL_XMIT_SIZE - 1;
-	info->xmit_cnt++;
-	spin_unlock_irqrestore(&info->slock, flags);
-	if (!tty->stopped) {
-		if (!tty->hw_stopped ||
-				(info->type == PORT_16550A) ||
-				info->board->chip_flag) {
-			spin_lock_irqsave(&info->slock, flags);
-			outb(info->IER & ~UART_IER_THRI, info->ioaddr + UART_IER);
-			info->IER |= UART_IER_THRI;
-			outb(info->IER, info->ioaddr + UART_IER);
-			spin_unlock_irqrestore(&info->slock, flags);
-		}
-	}
-	return 1;
-}
-
-
-static void mxser_flush_chars(struct tty_struct *tty)
-{
-	struct mxser_port *info = tty->driver_data;
-	unsigned long flags;
-
-	if (info->xmit_cnt <= 0 || tty->stopped || !info->port.xmit_buf ||
-			(tty->hw_stopped && info->type != PORT_16550A &&
-			 !info->board->chip_flag))
-		return;
-
-	spin_lock_irqsave(&info->slock, flags);
-
-	outb(info->IER & ~UART_IER_THRI, info->ioaddr + UART_IER);
-	info->IER |= UART_IER_THRI;
-	outb(info->IER, info->ioaddr + UART_IER);
-
-	spin_unlock_irqrestore(&info->slock, flags);
-}
-
-static int mxser_write_room(struct tty_struct *tty)
-{
-	struct mxser_port *info = tty->driver_data;
-	int ret;
-
-	ret = SERIAL_XMIT_SIZE - info->xmit_cnt - 1;
-	return ret < 0 ? 0 : ret;
-}
-
-static int mxser_chars_in_buffer(struct tty_struct *tty)
-{
-	struct mxser_port *info = tty->driver_data;
-	return info->xmit_cnt;
-}
-
-/*
- * ------------------------------------------------------------
- * friends of mxser_ioctl()
- * ------------------------------------------------------------
- */
-static int mxser_get_serial_info(struct tty_struct *tty,
-		struct serial_struct __user *retinfo)
-{
-	struct mxser_port *info = tty->driver_data;
-	struct serial_struct tmp = {
-		.type = info->type,
-		.line = tty->index,
-		.port = info->ioaddr,
-		.irq = info->board->irq,
-		.flags = info->port.flags,
-		.baud_base = info->baud_base,
-		.close_delay = info->port.close_delay,
-		.closing_wait = info->port.closing_wait,
-		.custom_divisor = info->custom_divisor,
-		.hub6 = 0
-	};
-	if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
-		return -EFAULT;
-	return 0;
-}
-
-static int mxser_set_serial_info(struct tty_struct *tty,
-		struct serial_struct __user *new_info)
-{
-	struct mxser_port *info = tty->driver_data;
-	struct tty_port *port = &info->port;
-	struct serial_struct new_serial;
-	speed_t baud;
-	unsigned long sl_flags;
-	unsigned int flags;
-	int retval = 0;
-
-	if (!new_info || !info->ioaddr)
-		return -ENODEV;
-	if (copy_from_user(&new_serial, new_info, sizeof(new_serial)))
-		return -EFAULT;
-
-	if (new_serial.irq != info->board->irq ||
-			new_serial.port != info->ioaddr)
-		return -EINVAL;
-
-	flags = port->flags & ASYNC_SPD_MASK;
-
-	if (!capable(CAP_SYS_ADMIN)) {
-		if ((new_serial.baud_base != info->baud_base) ||
-				(new_serial.close_delay != info->port.close_delay) ||
-				((new_serial.flags & ~ASYNC_USR_MASK) != (info->port.flags & ~ASYNC_USR_MASK)))
-			return -EPERM;
-		info->port.flags = ((info->port.flags & ~ASYNC_USR_MASK) |
-				(new_serial.flags & ASYNC_USR_MASK));
-	} else {
-		/*
-		 * OK, past this point, all the error checking has been done.
-		 * At this point, we start making changes.....
-		 */
-		port->flags = ((port->flags & ~ASYNC_FLAGS) |
-				(new_serial.flags & ASYNC_FLAGS));
-		port->close_delay = new_serial.close_delay * HZ / 100;
-		port->closing_wait = new_serial.closing_wait * HZ / 100;
-		tty->low_latency = (port->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
-		if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST &&
-				(new_serial.baud_base != info->baud_base ||
-				new_serial.custom_divisor !=
-				info->custom_divisor)) {
-			if (new_serial.custom_divisor == 0)
-				return -EINVAL;
-			baud = new_serial.baud_base / new_serial.custom_divisor;
-			tty_encode_baud_rate(tty, baud, baud);
-		}
-	}
-
-	info->type = new_serial.type;
-
-	process_txrx_fifo(info);
-
-	if (test_bit(ASYNCB_INITIALIZED, &port->flags)) {
-		if (flags != (port->flags & ASYNC_SPD_MASK)) {
-			spin_lock_irqsave(&info->slock, sl_flags);
-			mxser_change_speed(tty, NULL);
-			spin_unlock_irqrestore(&info->slock, sl_flags);
-		}
-	} else {
-		retval = mxser_activate(port, tty);
-		if (retval == 0)
-			set_bit(ASYNCB_INITIALIZED, &port->flags);
-	}
-	return retval;
-}
-
-/*
- * mxser_get_lsr_info - get line status register info
- *
- * Purpose: Let user call ioctl() to get info when the UART physically
- *	    is emptied.  On bus types like RS485, the transmitter must
- *	    release the bus after transmitting. This must be done when
- *	    the transmit shift register is empty, not be done when the
- *	    transmit holding register is empty.  This functionality
- *	    allows an RS485 driver to be written in user space.
- */
-static int mxser_get_lsr_info(struct mxser_port *info,
-		unsigned int __user *value)
-{
-	unsigned char status;
-	unsigned int result;
-	unsigned long flags;
-
-	spin_lock_irqsave(&info->slock, flags);
-	status = inb(info->ioaddr + UART_LSR);
-	spin_unlock_irqrestore(&info->slock, flags);
-	result = ((status & UART_LSR_TEMT) ? TIOCSER_TEMT : 0);
-	return put_user(result, value);
-}
-
-static int mxser_tiocmget(struct tty_struct *tty)
-{
-	struct mxser_port *info = tty->driver_data;
-	unsigned char control, status;
-	unsigned long flags;
-
-
-	if (tty->index == MXSER_PORTS)
-		return -ENOIOCTLCMD;
-	if (test_bit(TTY_IO_ERROR, &tty->flags))
-		return -EIO;
-
-	control = info->MCR;
-
-	spin_lock_irqsave(&info->slock, flags);
-	status = inb(info->ioaddr + UART_MSR);
-	if (status & UART_MSR_ANY_DELTA)
-		mxser_check_modem_status(tty, info, status);
-	spin_unlock_irqrestore(&info->slock, flags);
-	return ((control & UART_MCR_RTS) ? TIOCM_RTS : 0) |
-		    ((control & UART_MCR_DTR) ? TIOCM_DTR : 0) |
-		    ((status & UART_MSR_DCD) ? TIOCM_CAR : 0) |
-		    ((status & UART_MSR_RI) ? TIOCM_RNG : 0) |
-		    ((status & UART_MSR_DSR) ? TIOCM_DSR : 0) |
-		    ((status & UART_MSR_CTS) ? TIOCM_CTS : 0);
-}
-
-static int mxser_tiocmset(struct tty_struct *tty,
-		unsigned int set, unsigned int clear)
-{
-	struct mxser_port *info = tty->driver_data;
-	unsigned long flags;
-
-
-	if (tty->index == MXSER_PORTS)
-		return -ENOIOCTLCMD;
-	if (test_bit(TTY_IO_ERROR, &tty->flags))
-		return -EIO;
-
-	spin_lock_irqsave(&info->slock, flags);
-
-	if (set & TIOCM_RTS)
-		info->MCR |= UART_MCR_RTS;
-	if (set & TIOCM_DTR)
-		info->MCR |= UART_MCR_DTR;
-
-	if (clear & TIOCM_RTS)
-		info->MCR &= ~UART_MCR_RTS;
-	if (clear & TIOCM_DTR)
-		info->MCR &= ~UART_MCR_DTR;
-
-	outb(info->MCR, info->ioaddr + UART_MCR);
-	spin_unlock_irqrestore(&info->slock, flags);
-	return 0;
-}
-
-static int __init mxser_program_mode(int port)
-{
-	int id, i, j, n;
-
-	outb(0, port);
-	outb(0, port);
-	outb(0, port);
-	(void)inb(port);
-	(void)inb(port);
-	outb(0, port);
-	(void)inb(port);
-
-	id = inb(port + 1) & 0x1F;
-	if ((id != C168_ASIC_ID) &&
-			(id != C104_ASIC_ID) &&
-			(id != C102_ASIC_ID) &&
-			(id != CI132_ASIC_ID) &&
-			(id != CI134_ASIC_ID) &&
-			(id != CI104J_ASIC_ID))
-		return -1;
-	for (i = 0, j = 0; i < 4; i++) {
-		n = inb(port + 2);
-		if (n == 'M') {
-			j = 1;
-		} else if ((j == 1) && (n == 1)) {
-			j = 2;
-			break;
-		} else
-			j = 0;
-	}
-	if (j != 2)
-		id = -2;
-	return id;
-}
-
-static void __init mxser_normal_mode(int port)
-{
-	int i, n;
-
-	outb(0xA5, port + 1);
-	outb(0x80, port + 3);
-	outb(12, port + 0);	/* 9600 bps */
-	outb(0, port + 1);
-	outb(0x03, port + 3);	/* 8 data bits */
-	outb(0x13, port + 4);	/* loop back mode */
-	for (i = 0; i < 16; i++) {
-		n = inb(port + 5);
-		if ((n & 0x61) == 0x60)
-			break;
-		if ((n & 1) == 1)
-			(void)inb(port);
-	}
-	outb(0x00, port + 4);
-}
-
-#define CHIP_SK 	0x01	/* Serial Data Clock  in Eprom */
-#define CHIP_DO 	0x02	/* Serial Data Output in Eprom */
-#define CHIP_CS 	0x04	/* Serial Chip Select in Eprom */
-#define CHIP_DI 	0x08	/* Serial Data Input  in Eprom */
-#define EN_CCMD 	0x000	/* Chip's command register     */
-#define EN0_RSARLO	0x008	/* Remote start address reg 0  */
-#define EN0_RSARHI	0x009	/* Remote start address reg 1  */
-#define EN0_RCNTLO	0x00A	/* Remote byte count reg WR    */
-#define EN0_RCNTHI	0x00B	/* Remote byte count reg WR    */
-#define EN0_DCFG	0x00E	/* Data configuration reg WR   */
-#define EN0_PORT	0x010	/* Rcv missed frame error counter RD */
-#define ENC_PAGE0	0x000	/* Select page 0 of chip registers   */
-#define ENC_PAGE3	0x0C0	/* Select page 3 of chip registers   */
-static int __init mxser_read_register(int port, unsigned short *regs)
-{
-	int i, k, value, id;
-	unsigned int j;
-
-	id = mxser_program_mode(port);
-	if (id < 0)
-		return id;
-	for (i = 0; i < 14; i++) {
-		k = (i & 0x3F) | 0x180;
-		for (j = 0x100; j > 0; j >>= 1) {
-			outb(CHIP_CS, port);
-			if (k & j) {
-				outb(CHIP_CS | CHIP_DO, port);
-				outb(CHIP_CS | CHIP_DO | CHIP_SK, port);	/* A? bit of read */
-			} else {
-				outb(CHIP_CS, port);
-				outb(CHIP_CS | CHIP_SK, port);	/* A? bit of read */
-			}
-		}
-		(void)inb(port);
-		value = 0;
-		for (k = 0, j = 0x8000; k < 16; k++, j >>= 1) {
-			outb(CHIP_CS, port);
-			outb(CHIP_CS | CHIP_SK, port);
-			if (inb(port) & CHIP_DI)
-				value |= j;
-		}
-		regs[i] = value;
-		outb(0, port);
-	}
-	mxser_normal_mode(port);
-	return id;
-}
-
-static int mxser_ioctl_special(unsigned int cmd, void __user *argp)
-{
-	struct mxser_port *ip;
-	struct tty_port *port;
-	struct tty_struct *tty;
-	int result, status;
-	unsigned int i, j;
-	int ret = 0;
-
-	switch (cmd) {
-	case MOXA_GET_MAJOR:
-		if (printk_ratelimit())
-			printk(KERN_WARNING "mxser: '%s' uses deprecated ioctl "
-					"%x (GET_MAJOR), fix your userspace\n",
-					current->comm, cmd);
-		return put_user(ttymajor, (int __user *)argp);
-
-	case MOXA_CHKPORTENABLE:
-		result = 0;
-		for (i = 0; i < MXSER_BOARDS; i++)
-			for (j = 0; j < MXSER_PORTS_PER_BOARD; j++)
-				if (mxser_boards[i].ports[j].ioaddr)
-					result |= (1 << i);
-		return put_user(result, (unsigned long __user *)argp);
-	case MOXA_GETDATACOUNT:
-		/* The receive side is locked by port->slock but it isn't
-		   clear that an exact snapshot is worth copying here */
-		if (copy_to_user(argp, &mxvar_log, sizeof(mxvar_log)))
-			ret = -EFAULT;
-		return ret;
-	case MOXA_GETMSTATUS: {
-		struct mxser_mstatus ms, __user *msu = argp;
-		for (i = 0; i < MXSER_BOARDS; i++)
-			for (j = 0; j < MXSER_PORTS_PER_BOARD; j++) {
-				ip = &mxser_boards[i].ports[j];
-				port = &ip->port;
-				memset(&ms, 0, sizeof(ms));
-
-				mutex_lock(&port->mutex);
-				if (!ip->ioaddr)
-					goto copy;
-				
-				tty = tty_port_tty_get(port);
-
-				if (!tty || !tty->termios)
-					ms.cflag = ip->normal_termios.c_cflag;
-				else
-					ms.cflag = tty->termios->c_cflag;
-				tty_kref_put(tty);
-				spin_lock_irq(&ip->slock);
-				status = inb(ip->ioaddr + UART_MSR);
-				spin_unlock_irq(&ip->slock);
-				if (status & UART_MSR_DCD)
-					ms.dcd = 1;
-				if (status & UART_MSR_DSR)
-					ms.dsr = 1;
-				if (status & UART_MSR_CTS)
-					ms.cts = 1;
-			copy:
-				mutex_unlock(&port->mutex);
-				if (copy_to_user(msu, &ms, sizeof(ms)))
-					return -EFAULT;
-				msu++;
-			}
-		return 0;
-	}
-	case MOXA_ASPP_MON_EXT: {
-		struct mxser_mon_ext *me; /* it's 2k, stack unfriendly */
-		unsigned int cflag, iflag, p;
-		u8 opmode;
-
-		me = kzalloc(sizeof(*me), GFP_KERNEL);
-		if (!me)
-			return -ENOMEM;
-
-		for (i = 0, p = 0; i < MXSER_BOARDS; i++) {
-			for (j = 0; j < MXSER_PORTS_PER_BOARD; j++, p++) {
-				if (p >= ARRAY_SIZE(me->rx_cnt)) {
-					i = MXSER_BOARDS;
-					break;
-				}
-				ip = &mxser_boards[i].ports[j];
-				port = &ip->port;
-
-				mutex_lock(&port->mutex);
-				if (!ip->ioaddr) {
-					mutex_unlock(&port->mutex);
-					continue;
-				}
-
-				spin_lock_irq(&ip->slock);
-				status = mxser_get_msr(ip->ioaddr, 0, p);
-
-				if (status & UART_MSR_TERI)
-					ip->icount.rng++;
-				if (status & UART_MSR_DDSR)
-					ip->icount.dsr++;
-				if (status & UART_MSR_DDCD)
-					ip->icount.dcd++;
-				if (status & UART_MSR_DCTS)
-					ip->icount.cts++;
-
-				ip->mon_data.modem_status = status;
-				me->rx_cnt[p] = ip->mon_data.rxcnt;
-				me->tx_cnt[p] = ip->mon_data.txcnt;
-				me->up_rxcnt[p] = ip->mon_data.up_rxcnt;
-				me->up_txcnt[p] = ip->mon_data.up_txcnt;
-				me->modem_status[p] =
-					ip->mon_data.modem_status;
-				spin_unlock_irq(&ip->slock);
-
-				tty = tty_port_tty_get(&ip->port);
-
-				if (!tty || !tty->termios) {
-					cflag = ip->normal_termios.c_cflag;
-					iflag = ip->normal_termios.c_iflag;
-					me->baudrate[p] = tty_termios_baud_rate(&ip->normal_termios);
-				} else {
-					cflag = tty->termios->c_cflag;
-					iflag = tty->termios->c_iflag;
-					me->baudrate[p] = tty_get_baud_rate(tty);
-				}
-				tty_kref_put(tty);
-
-				me->databits[p] = cflag & CSIZE;
-				me->stopbits[p] = cflag & CSTOPB;
-				me->parity[p] = cflag & (PARENB | PARODD |
-						CMSPAR);
-
-				if (cflag & CRTSCTS)
-					me->flowctrl[p] |= 0x03;
-
-				if (iflag & (IXON | IXOFF))
-					me->flowctrl[p] |= 0x0C;
-
-				if (ip->type == PORT_16550A)
-					me->fifo[p] = 1;
-
-				opmode = inb(ip->opmode_ioaddr)>>((p % 4) * 2);
-				opmode &= OP_MODE_MASK;
-				me->iftype[p] = opmode;
-				mutex_unlock(&port->mutex);
-			}
-		}
-		if (copy_to_user(argp, me, sizeof(*me)))
-			ret = -EFAULT;
-		kfree(me);
-		return ret;
-	}
-	default:
-		return -ENOIOCTLCMD;
-	}
-	return 0;
-}
-
-static int mxser_cflags_changed(struct mxser_port *info, unsigned long arg,
-		struct async_icount *cprev)
-{
-	struct async_icount cnow;
-	unsigned long flags;
-	int ret;
-
-	spin_lock_irqsave(&info->slock, flags);
-	cnow = info->icount;	/* atomic copy */
-	spin_unlock_irqrestore(&info->slock, flags);
-
-	ret =	((arg & TIOCM_RNG) && (cnow.rng != cprev->rng)) ||
-		((arg & TIOCM_DSR) && (cnow.dsr != cprev->dsr)) ||
-		((arg & TIOCM_CD)  && (cnow.dcd != cprev->dcd)) ||
-		((arg & TIOCM_CTS) && (cnow.cts != cprev->cts));
-
-	*cprev = cnow;
-
-	return ret;
-}
-
-static int mxser_ioctl(struct tty_struct *tty,
-		unsigned int cmd, unsigned long arg)
-{
-	struct mxser_port *info = tty->driver_data;
-	struct tty_port *port = &info->port;
-	struct async_icount cnow;
-	unsigned long flags;
-	void __user *argp = (void __user *)arg;
-	int retval;
-
-	if (tty->index == MXSER_PORTS)
-		return mxser_ioctl_special(cmd, argp);
-
-	if (cmd == MOXA_SET_OP_MODE || cmd == MOXA_GET_OP_MODE) {
-		int p;
-		unsigned long opmode;
-		static unsigned char ModeMask[] = { 0xfc, 0xf3, 0xcf, 0x3f };
-		int shiftbit;
-		unsigned char val, mask;
-
-		p = tty->index % 4;
-		if (cmd == MOXA_SET_OP_MODE) {
-			if (get_user(opmode, (int __user *) argp))
-				return -EFAULT;
-			if (opmode != RS232_MODE &&
-					opmode != RS485_2WIRE_MODE &&
-					opmode != RS422_MODE &&
-					opmode != RS485_4WIRE_MODE)
-				return -EFAULT;
-			mask = ModeMask[p];
-			shiftbit = p * 2;
-			spin_lock_irq(&info->slock);
-			val = inb(info->opmode_ioaddr);
-			val &= mask;
-			val |= (opmode << shiftbit);
-			outb(val, info->opmode_ioaddr);
-			spin_unlock_irq(&info->slock);
-		} else {
-			shiftbit = p * 2;
-			spin_lock_irq(&info->slock);
-			opmode = inb(info->opmode_ioaddr) >> shiftbit;
-			spin_unlock_irq(&info->slock);
-			opmode &= OP_MODE_MASK;
-			if (put_user(opmode, (int __user *)argp))
-				return -EFAULT;
-		}
-		return 0;
-	}
-
-	if (cmd != TIOCGSERIAL && cmd != TIOCMIWAIT &&
-			test_bit(TTY_IO_ERROR, &tty->flags))
-		return -EIO;
-
-	switch (cmd) {
-	case TIOCGSERIAL:
-		mutex_lock(&port->mutex);
-		retval = mxser_get_serial_info(tty, argp);
-		mutex_unlock(&port->mutex);
-		return retval;
-	case TIOCSSERIAL:
-		mutex_lock(&port->mutex);
-		retval = mxser_set_serial_info(tty, argp);
-		mutex_unlock(&port->mutex);
-		return retval;
-	case TIOCSERGETLSR:	/* Get line status register */
-		return  mxser_get_lsr_info(info, argp);
-		/*
-		 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
-		 * - mask passed in arg for lines of interest
-		 *   (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
-		 * Caller should use TIOCGICOUNT to see which one it was
-		 */
-	case TIOCMIWAIT:
-		spin_lock_irqsave(&info->slock, flags);
-		cnow = info->icount;	/* note the counters on entry */
-		spin_unlock_irqrestore(&info->slock, flags);
-
-		return wait_event_interruptible(info->port.delta_msr_wait,
-				mxser_cflags_changed(info, arg, &cnow));
-	case MOXA_HighSpeedOn:
-		return put_user(info->baud_base != 115200 ? 1 : 0, (int __user *)argp);
-	case MOXA_SDS_RSTICOUNTER:
-		spin_lock_irq(&info->slock);
-		info->mon_data.rxcnt = 0;
-		info->mon_data.txcnt = 0;
-		spin_unlock_irq(&info->slock);
-		return 0;
-
-	case MOXA_ASPP_OQUEUE:{
-		int len, lsr;
-
-		len = mxser_chars_in_buffer(tty);
-		spin_lock_irq(&info->slock);
-		lsr = inb(info->ioaddr + UART_LSR) & UART_LSR_THRE;
-		spin_unlock_irq(&info->slock);
-		len += (lsr ? 0 : 1);
-
-		return put_user(len, (int __user *)argp);
-	}
-	case MOXA_ASPP_MON: {
-		int mcr, status;
-
-		spin_lock_irq(&info->slock);
-		status = mxser_get_msr(info->ioaddr, 1, tty->index);
-		mxser_check_modem_status(tty, info, status);
-
-		mcr = inb(info->ioaddr + UART_MCR);
-		spin_unlock_irq(&info->slock);
-
-		if (mcr & MOXA_MUST_MCR_XON_FLAG)
-			info->mon_data.hold_reason &= ~NPPI_NOTIFY_XOFFHOLD;
-		else
-			info->mon_data.hold_reason |= NPPI_NOTIFY_XOFFHOLD;
-
-		if (mcr & MOXA_MUST_MCR_TX_XON)
-			info->mon_data.hold_reason &= ~NPPI_NOTIFY_XOFFXENT;
-		else
-			info->mon_data.hold_reason |= NPPI_NOTIFY_XOFFXENT;
-
-		if (tty->hw_stopped)
-			info->mon_data.hold_reason |= NPPI_NOTIFY_CTSHOLD;
-		else
-			info->mon_data.hold_reason &= ~NPPI_NOTIFY_CTSHOLD;
-
-		if (copy_to_user(argp, &info->mon_data,
-				sizeof(struct mxser_mon)))
-			return -EFAULT;
-
-		return 0;
-	}
-	case MOXA_ASPP_LSTATUS: {
-		if (put_user(info->err_shadow, (unsigned char __user *)argp))
-			return -EFAULT;
-
-		info->err_shadow = 0;
-		return 0;
-	}
-	case MOXA_SET_BAUD_METHOD: {
-		int method;
-
-		if (get_user(method, (int __user *)argp))
-			return -EFAULT;
-		mxser_set_baud_method[tty->index] = method;
-		return put_user(method, (int __user *)argp);
-	}
-	default:
-		return -ENOIOCTLCMD;
-	}
-	return 0;
-}
-
-	/*
-	 * Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
-	 * Return: write counters to the user passed counter struct
-	 * NB: both 1->0 and 0->1 transitions are counted except for
-	 *     RI where only 0->1 is counted.
-	 */
-
-static int mxser_get_icount(struct tty_struct *tty,
-		struct serial_icounter_struct *icount)
-
-{
-	struct mxser_port *info = tty->driver_data;
-	struct async_icount cnow;
-	unsigned long flags;
-
-	spin_lock_irqsave(&info->slock, flags);
-	cnow = info->icount;
-	spin_unlock_irqrestore(&info->slock, flags);
-
-	icount->frame = cnow.frame;
-	icount->brk = cnow.brk;
-	icount->overrun = cnow.overrun;
-	icount->buf_overrun = cnow.buf_overrun;
-	icount->parity = cnow.parity;
-	icount->rx = cnow.rx;
-	icount->tx = cnow.tx;
-	icount->cts = cnow.cts;
-	icount->dsr = cnow.dsr;
-	icount->rng = cnow.rng;
-	icount->dcd = cnow.dcd;
-	return 0;
-}
-
-static void mxser_stoprx(struct tty_struct *tty)
-{
-	struct mxser_port *info = tty->driver_data;
-
-	info->ldisc_stop_rx = 1;
-	if (I_IXOFF(tty)) {
-		if (info->board->chip_flag) {
-			info->IER &= ~MOXA_MUST_RECV_ISR;
-			outb(info->IER, info->ioaddr + UART_IER);
-		} else {
-			info->x_char = STOP_CHAR(tty);
-			outb(0, info->ioaddr + UART_IER);
-			info->IER |= UART_IER_THRI;
-			outb(info->IER, info->ioaddr + UART_IER);
-		}
-	}
-
-	if (tty->termios->c_cflag & CRTSCTS) {
-		info->MCR &= ~UART_MCR_RTS;
-		outb(info->MCR, info->ioaddr + UART_MCR);
-	}
-}
-
-/*
- * This routine is called by the upper-layer tty layer to signal that
- * incoming characters should be throttled.
- */
-static void mxser_throttle(struct tty_struct *tty)
-{
-	mxser_stoprx(tty);
-}
-
-static void mxser_unthrottle(struct tty_struct *tty)
-{
-	struct mxser_port *info = tty->driver_data;
-
-	/* startrx */
-	info->ldisc_stop_rx = 0;
-	if (I_IXOFF(tty)) {
-		if (info->x_char)
-			info->x_char = 0;
-		else {
-			if (info->board->chip_flag) {
-				info->IER |= MOXA_MUST_RECV_ISR;
-				outb(info->IER, info->ioaddr + UART_IER);
-			} else {
-				info->x_char = START_CHAR(tty);
-				outb(0, info->ioaddr + UART_IER);
-				info->IER |= UART_IER_THRI;
-				outb(info->IER, info->ioaddr + UART_IER);
-			}
-		}
-	}
-
-	if (tty->termios->c_cflag & CRTSCTS) {
-		info->MCR |= UART_MCR_RTS;
-		outb(info->MCR, info->ioaddr + UART_MCR);
-	}
-}
-
-/*
- * mxser_stop() and mxser_start()
- *
- * This routines are called before setting or resetting tty->stopped.
- * They enable or disable transmitter interrupts, as necessary.
- */
-static void mxser_stop(struct tty_struct *tty)
-{
-	struct mxser_port *info = tty->driver_data;
-	unsigned long flags;
-
-	spin_lock_irqsave(&info->slock, flags);
-	if (info->IER & UART_IER_THRI) {
-		info->IER &= ~UART_IER_THRI;
-		outb(info->IER, info->ioaddr + UART_IER);
-	}
-	spin_unlock_irqrestore(&info->slock, flags);
-}
-
-static void mxser_start(struct tty_struct *tty)
-{
-	struct mxser_port *info = tty->driver_data;
-	unsigned long flags;
-
-	spin_lock_irqsave(&info->slock, flags);
-	if (info->xmit_cnt && info->port.xmit_buf) {
-		outb(info->IER & ~UART_IER_THRI, info->ioaddr + UART_IER);
-		info->IER |= UART_IER_THRI;
-		outb(info->IER, info->ioaddr + UART_IER);
-	}
-	spin_unlock_irqrestore(&info->slock, flags);
-}
-
-static void mxser_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
-{
-	struct mxser_port *info = tty->driver_data;
-	unsigned long flags;
-
-	spin_lock_irqsave(&info->slock, flags);
-	mxser_change_speed(tty, old_termios);
-	spin_unlock_irqrestore(&info->slock, flags);
-
-	if ((old_termios->c_cflag & CRTSCTS) &&
-			!(tty->termios->c_cflag & CRTSCTS)) {
-		tty->hw_stopped = 0;
-		mxser_start(tty);
-	}
-
-	/* Handle sw stopped */
-	if ((old_termios->c_iflag & IXON) &&
-			!(tty->termios->c_iflag & IXON)) {
-		tty->stopped = 0;
-
-		if (info->board->chip_flag) {
-			spin_lock_irqsave(&info->slock, flags);
-			mxser_disable_must_rx_software_flow_control(
-					info->ioaddr);
-			spin_unlock_irqrestore(&info->slock, flags);
-		}
-
-		mxser_start(tty);
-	}
-}
-
-/*
- * mxser_wait_until_sent() --- wait until the transmitter is empty
- */
-static void mxser_wait_until_sent(struct tty_struct *tty, int timeout)
-{
-	struct mxser_port *info = tty->driver_data;
-	unsigned long orig_jiffies, char_time;
-	unsigned long flags;
-	int lsr;
-
-	if (info->type == PORT_UNKNOWN)
-		return;
-
-	if (info->xmit_fifo_size == 0)
-		return;		/* Just in case.... */
-
-	orig_jiffies = jiffies;
-	/*
-	 * Set the check interval to be 1/5 of the estimated time to
-	 * send a single character, and make it at least 1.  The check
-	 * interval should also be less than the timeout.
-	 *
-	 * Note: we have to use pretty tight timings here to satisfy
-	 * the NIST-PCTS.
-	 */
-	char_time = (info->timeout - HZ / 50) / info->xmit_fifo_size;
-	char_time = char_time / 5;
-	if (char_time == 0)
-		char_time = 1;
-	if (timeout && timeout < char_time)
-		char_time = timeout;
-	/*
-	 * If the transmitter hasn't cleared in twice the approximate
-	 * amount of time to send the entire FIFO, it probably won't
-	 * ever clear.  This assumes the UART isn't doing flow
-	 * control, which is currently the case.  Hence, if it ever
-	 * takes longer than info->timeout, this is probably due to a
-	 * UART bug of some kind.  So, we clamp the timeout parameter at
-	 * 2*info->timeout.
-	 */
-	if (!timeout || timeout > 2 * info->timeout)
-		timeout = 2 * info->timeout;
-#ifdef SERIAL_DEBUG_RS_WAIT_UNTIL_SENT
-	printk(KERN_DEBUG "In rs_wait_until_sent(%d) check=%lu...",
-		timeout, char_time);
-	printk("jiff=%lu...", jiffies);
-#endif
-	spin_lock_irqsave(&info->slock, flags);
-	while (!((lsr = inb(info->ioaddr + UART_LSR)) & UART_LSR_TEMT)) {
-#ifdef SERIAL_DEBUG_RS_WAIT_UNTIL_SENT
-		printk("lsr = %d (jiff=%lu)...", lsr, jiffies);
-#endif
-		spin_unlock_irqrestore(&info->slock, flags);
-		schedule_timeout_interruptible(char_time);
-		spin_lock_irqsave(&info->slock, flags);
-		if (signal_pending(current))
-			break;
-		if (timeout && time_after(jiffies, orig_jiffies + timeout))
-			break;
-	}
-	spin_unlock_irqrestore(&info->slock, flags);
-	set_current_state(TASK_RUNNING);
-
-#ifdef SERIAL_DEBUG_RS_WAIT_UNTIL_SENT
-	printk("lsr = %d (jiff=%lu)...done\n", lsr, jiffies);
-#endif
-}
-
-/*
- * This routine is called by tty_hangup() when a hangup is signaled.
- */
-static void mxser_hangup(struct tty_struct *tty)
-{
-	struct mxser_port *info = tty->driver_data;
-
-	mxser_flush_buffer(tty);
-	tty_port_hangup(&info->port);
-}
-
-/*
- * mxser_rs_break() --- routine which turns the break handling on or off
- */
-static int mxser_rs_break(struct tty_struct *tty, int break_state)
-{
-	struct mxser_port *info = tty->driver_data;
-	unsigned long flags;
-
-	spin_lock_irqsave(&info->slock, flags);
-	if (break_state == -1)
-		outb(inb(info->ioaddr + UART_LCR) | UART_LCR_SBC,
-			info->ioaddr + UART_LCR);
-	else
-		outb(inb(info->ioaddr + UART_LCR) & ~UART_LCR_SBC,
-			info->ioaddr + UART_LCR);
-	spin_unlock_irqrestore(&info->slock, flags);
-	return 0;
-}
-
-static void mxser_receive_chars(struct tty_struct *tty,
-				struct mxser_port *port, int *status)
-{
-	unsigned char ch, gdl;
-	int ignored = 0;
-	int cnt = 0;
-	int recv_room;
-	int max = 256;
-
-	recv_room = tty->receive_room;
-	if (recv_room == 0 && !port->ldisc_stop_rx)
-		mxser_stoprx(tty);
-	if (port->board->chip_flag != MOXA_OTHER_UART) {
-
-		if (*status & UART_LSR_SPECIAL)
-			goto intr_old;
-		if (port->board->chip_flag == MOXA_MUST_MU860_HWID &&
-				(*status & MOXA_MUST_LSR_RERR))
-			goto intr_old;
-		if (*status & MOXA_MUST_LSR_RERR)
-			goto intr_old;
-
-		gdl = inb(port->ioaddr + MOXA_MUST_GDL_REGISTER);
-
-		if (port->board->chip_flag == MOXA_MUST_MU150_HWID)
-			gdl &= MOXA_MUST_GDL_MASK;
-		if (gdl >= recv_room) {
-			if (!port->ldisc_stop_rx)
-				mxser_stoprx(tty);
-		}
-		while (gdl--) {
-			ch = inb(port->ioaddr + UART_RX);
-			tty_insert_flip_char(tty, ch, 0);
-			cnt++;
-		}
-		goto end_intr;
-	}
-intr_old:
-
-	do {
-		if (max-- < 0)
-			break;
-
-		ch = inb(port->ioaddr + UART_RX);
-		if (port->board->chip_flag && (*status & UART_LSR_OE))
-			outb(0x23, port->ioaddr + UART_FCR);
-		*status &= port->read_status_mask;
-		if (*status & port->ignore_status_mask) {
-			if (++ignored > 100)
-				break;
-		} else {
-			char flag = 0;
-			if (*status & UART_LSR_SPECIAL) {
-				if (*status & UART_LSR_BI) {
-					flag = TTY_BREAK;
-					port->icount.brk++;
-
-					if (port->port.flags & ASYNC_SAK)
-						do_SAK(tty);
-				} else if (*status & UART_LSR_PE) {
-					flag = TTY_PARITY;
-					port->icount.parity++;
-				} else if (*status & UART_LSR_FE) {
-					flag = TTY_FRAME;
-					port->icount.frame++;
-				} else if (*status & UART_LSR_OE) {
-					flag = TTY_OVERRUN;
-					port->icount.overrun++;
-				} else
-					flag = TTY_BREAK;
-			}
-			tty_insert_flip_char(tty, ch, flag);
-			cnt++;
-			if (cnt >= recv_room) {
-				if (!port->ldisc_stop_rx)
-					mxser_stoprx(tty);
-				break;
-			}
-
-		}
-
-		if (port->board->chip_flag)
-			break;
-
-		*status = inb(port->ioaddr + UART_LSR);
-	} while (*status & UART_LSR_DR);
-
-end_intr:
-	mxvar_log.rxcnt[tty->index] += cnt;
-	port->mon_data.rxcnt += cnt;
-	port->mon_data.up_rxcnt += cnt;
-
-	/*
-	 * We are called from an interrupt context with &port->slock
-	 * being held. Drop it temporarily in order to prevent
-	 * recursive locking.
-	 */
-	spin_unlock(&port->slock);
-	tty_flip_buffer_push(tty);
-	spin_lock(&port->slock);
-}
-
-static void mxser_transmit_chars(struct tty_struct *tty, struct mxser_port *port)
-{
-	int count, cnt;
-
-	if (port->x_char) {
-		outb(port->x_char, port->ioaddr + UART_TX);
-		port->x_char = 0;
-		mxvar_log.txcnt[tty->index]++;
-		port->mon_data.txcnt++;
-		port->mon_data.up_txcnt++;
-		port->icount.tx++;
-		return;
-	}
-
-	if (port->port.xmit_buf == NULL)
-		return;
-
-	if (port->xmit_cnt <= 0 || tty->stopped ||
-			(tty->hw_stopped &&
-			(port->type != PORT_16550A) &&
-			(!port->board->chip_flag))) {
-		port->IER &= ~UART_IER_THRI;
-		outb(port->IER, port->ioaddr + UART_IER);
-		return;
-	}
-
-	cnt = port->xmit_cnt;
-	count = port->xmit_fifo_size;
-	do {
-		outb(port->port.xmit_buf[port->xmit_tail++],
-			port->ioaddr + UART_TX);
-		port->xmit_tail = port->xmit_tail & (SERIAL_XMIT_SIZE - 1);
-		if (--port->xmit_cnt <= 0)
-			break;
-	} while (--count > 0);
-	mxvar_log.txcnt[tty->index] += (cnt - port->xmit_cnt);
-
-	port->mon_data.txcnt += (cnt - port->xmit_cnt);
-	port->mon_data.up_txcnt += (cnt - port->xmit_cnt);
-	port->icount.tx += (cnt - port->xmit_cnt);
-
-	if (port->xmit_cnt < WAKEUP_CHARS)
-		tty_wakeup(tty);
-
-	if (port->xmit_cnt <= 0) {
-		port->IER &= ~UART_IER_THRI;
-		outb(port->IER, port->ioaddr + UART_IER);
-	}
-}
-
-/*
- * This is the serial driver's generic interrupt routine
- */
-static irqreturn_t mxser_interrupt(int irq, void *dev_id)
-{
-	int status, iir, i;
-	struct mxser_board *brd = NULL;
-	struct mxser_port *port;
-	int max, irqbits, bits, msr;
-	unsigned int int_cnt, pass_counter = 0;
-	int handled = IRQ_NONE;
-	struct tty_struct *tty;
-
-	for (i = 0; i < MXSER_BOARDS; i++)
-		if (dev_id == &mxser_boards[i]) {
-			brd = dev_id;
-			break;
-		}
-
-	if (i == MXSER_BOARDS)
-		goto irq_stop;
-	if (brd == NULL)
-		goto irq_stop;
-	max = brd->info->nports;
-	while (pass_counter++ < MXSER_ISR_PASS_LIMIT) {
-		irqbits = inb(brd->vector) & brd->vector_mask;
-		if (irqbits == brd->vector_mask)
-			break;
-
-		handled = IRQ_HANDLED;
-		for (i = 0, bits = 1; i < max; i++, irqbits |= bits, bits <<= 1) {
-			if (irqbits == brd->vector_mask)
-				break;
-			if (bits & irqbits)
-				continue;
-			port = &brd->ports[i];
-
-			int_cnt = 0;
-			spin_lock(&port->slock);
-			do {
-				iir = inb(port->ioaddr + UART_IIR);
-				if (iir & UART_IIR_NO_INT)
-					break;
-				iir &= MOXA_MUST_IIR_MASK;
-				tty = tty_port_tty_get(&port->port);
-				if (!tty ||
-						(port->port.flags & ASYNC_CLOSING) ||
-						!(port->port.flags &
-							ASYNC_INITIALIZED)) {
-					status = inb(port->ioaddr + UART_LSR);
-					outb(0x27, port->ioaddr + UART_FCR);
-					inb(port->ioaddr + UART_MSR);
-					tty_kref_put(tty);
-					break;
-				}
-
-				status = inb(port->ioaddr + UART_LSR);
-
-				if (status & UART_LSR_PE)
-					port->err_shadow |= NPPI_NOTIFY_PARITY;
-				if (status & UART_LSR_FE)
-					port->err_shadow |= NPPI_NOTIFY_FRAMING;
-				if (status & UART_LSR_OE)
-					port->err_shadow |=
-						NPPI_NOTIFY_HW_OVERRUN;
-				if (status & UART_LSR_BI)
-					port->err_shadow |= NPPI_NOTIFY_BREAK;
-
-				if (port->board->chip_flag) {
-					if (iir == MOXA_MUST_IIR_GDA ||
-					    iir == MOXA_MUST_IIR_RDA ||
-					    iir == MOXA_MUST_IIR_RTO ||
-					    iir == MOXA_MUST_IIR_LSR)
-						mxser_receive_chars(tty, port,
-								&status);
-
-				} else {
-					status &= port->read_status_mask;
-					if (status & UART_LSR_DR)
-						mxser_receive_chars(tty, port,
-								&status);
-				}
-				msr = inb(port->ioaddr + UART_MSR);
-				if (msr & UART_MSR_ANY_DELTA)
-					mxser_check_modem_status(tty, port, msr);
-
-				if (port->board->chip_flag) {
-					if (iir == 0x02 && (status &
-								UART_LSR_THRE))
-						mxser_transmit_chars(tty, port);
-				} else {
-					if (status & UART_LSR_THRE)
-						mxser_transmit_chars(tty, port);
-				}
-				tty_kref_put(tty);
-			} while (int_cnt++ < MXSER_ISR_PASS_LIMIT);
-			spin_unlock(&port->slock);
-		}
-	}
-
-irq_stop:
-	return handled;
-}
-
-static const struct tty_operations mxser_ops = {
-	.open = mxser_open,
-	.close = mxser_close,
-	.write = mxser_write,
-	.put_char = mxser_put_char,
-	.flush_chars = mxser_flush_chars,
-	.write_room = mxser_write_room,
-	.chars_in_buffer = mxser_chars_in_buffer,
-	.flush_buffer = mxser_flush_buffer,
-	.ioctl = mxser_ioctl,
-	.throttle = mxser_throttle,
-	.unthrottle = mxser_unthrottle,
-	.set_termios = mxser_set_termios,
-	.stop = mxser_stop,
-	.start = mxser_start,
-	.hangup = mxser_hangup,
-	.break_ctl = mxser_rs_break,
-	.wait_until_sent = mxser_wait_until_sent,
-	.tiocmget = mxser_tiocmget,
-	.tiocmset = mxser_tiocmset,
-	.get_icount = mxser_get_icount,
-};
-
-struct tty_port_operations mxser_port_ops = {
-	.carrier_raised = mxser_carrier_raised,
-	.dtr_rts = mxser_dtr_rts,
-	.activate = mxser_activate,
-	.shutdown = mxser_shutdown_port,
-};
-
-/*
- * The MOXA Smartio/Industio serial driver boot-time initialization code!
- */
-
-static void mxser_release_ISA_res(struct mxser_board *brd)
-{
-	free_irq(brd->irq, brd);
-	release_region(brd->ports[0].ioaddr, 8 * brd->info->nports);
-	release_region(brd->vector, 1);
-}
-
-static int __devinit mxser_initbrd(struct mxser_board *brd,
-		struct pci_dev *pdev)
-{
-	struct mxser_port *info;
-	unsigned int i;
-	int retval;
-
-	printk(KERN_INFO "mxser: max. baud rate = %d bps\n",
-			brd->ports[0].max_baud);
-
-	for (i = 0; i < brd->info->nports; i++) {
-		info = &brd->ports[i];
-		tty_port_init(&info->port);
-		info->port.ops = &mxser_port_ops;
-		info->board = brd;
-		info->stop_rx = 0;
-		info->ldisc_stop_rx = 0;
-
-		/* Enhance mode enabled here */
-		if (brd->chip_flag != MOXA_OTHER_UART)
-			mxser_enable_must_enchance_mode(info->ioaddr);
-
-		info->port.flags = ASYNC_SHARE_IRQ;
-		info->type = brd->uart_type;
-
-		process_txrx_fifo(info);
-
-		info->custom_divisor = info->baud_base * 16;
-		info->port.close_delay = 5 * HZ / 10;
-		info->port.closing_wait = 30 * HZ;
-		info->normal_termios = mxvar_sdriver->init_termios;
-		memset(&info->mon_data, 0, sizeof(struct mxser_mon));
-		info->err_shadow = 0;
-		spin_lock_init(&info->slock);
-
-		/* before set INT ISR, disable all int */
-		outb(inb(info->ioaddr + UART_IER) & 0xf0,
-			info->ioaddr + UART_IER);
-	}
-
-	retval = request_irq(brd->irq, mxser_interrupt, IRQF_SHARED, "mxser",
-			brd);
-	if (retval)
-		printk(KERN_ERR "Board %s: Request irq failed, IRQ (%d) may "
-			"conflict with another device.\n",
-			brd->info->name, brd->irq);
-
-	return retval;
-}
-
-static int __init mxser_get_ISA_conf(int cap, struct mxser_board *brd)
-{
-	int id, i, bits;
-	unsigned short regs[16], irq;
-	unsigned char scratch, scratch2;
-
-	brd->chip_flag = MOXA_OTHER_UART;
-
-	id = mxser_read_register(cap, regs);
-	switch (id) {
-	case C168_ASIC_ID:
-		brd->info = &mxser_cards[0];
-		break;
-	case C104_ASIC_ID:
-		brd->info = &mxser_cards[1];
-		break;
-	case CI104J_ASIC_ID:
-		brd->info = &mxser_cards[2];
-		break;
-	case C102_ASIC_ID:
-		brd->info = &mxser_cards[5];
-		break;
-	case CI132_ASIC_ID:
-		brd->info = &mxser_cards[6];
-		break;
-	case CI134_ASIC_ID:
-		brd->info = &mxser_cards[7];
-		break;
-	default:
-		return 0;
-	}
-
-	irq = 0;
-	/* some ISA cards have 2 ports, but we want to see them as 4-port (why?)
-	   Flag-hack checks if configuration should be read as 2-port here. */
-	if (brd->info->nports == 2 || (brd->info->flags & MXSER_HAS2)) {
-		irq = regs[9] & 0xF000;
-		irq = irq | (irq >> 4);
-		if (irq != (regs[9] & 0xFF00))
-			goto err_irqconflict;
-	} else if (brd->info->nports == 4) {
-		irq = regs[9] & 0xF000;
-		irq = irq | (irq >> 4);
-		irq = irq | (irq >> 8);
-		if (irq != regs[9])
-			goto err_irqconflict;
-	} else if (brd->info->nports == 8) {
-		irq = regs[9] & 0xF000;
-		irq = irq | (irq >> 4);
-		irq = irq | (irq >> 8);
-		if ((irq != regs[9]) || (irq != regs[10]))
-			goto err_irqconflict;
-	}
-
-	if (!irq) {
-		printk(KERN_ERR "mxser: interrupt number unset\n");
-		return -EIO;
-	}
-	brd->irq = ((int)(irq & 0xF000) >> 12);
-	for (i = 0; i < 8; i++)
-		brd->ports[i].ioaddr = (int) regs[i + 1] & 0xFFF8;
-	if ((regs[12] & 0x80) == 0) {
-		printk(KERN_ERR "mxser: invalid interrupt vector\n");
-		return -EIO;
-	}
-	brd->vector = (int)regs[11];	/* interrupt vector */
-	if (id == 1)
-		brd->vector_mask = 0x00FF;
-	else
-		brd->vector_mask = 0x000F;
-	for (i = 7, bits = 0x0100; i >= 0; i--, bits <<= 1) {
-		if (regs[12] & bits) {
-			brd->ports[i].baud_base = 921600;
-			brd->ports[i].max_baud = 921600;
-		} else {
-			brd->ports[i].baud_base = 115200;
-			brd->ports[i].max_baud = 115200;
-		}
-	}
-	scratch2 = inb(cap + UART_LCR) & (~UART_LCR_DLAB);
-	outb(scratch2 | UART_LCR_DLAB, cap + UART_LCR);
-	outb(0, cap + UART_EFR);	/* EFR is the same as FCR */
-	outb(scratch2, cap + UART_LCR);
-	outb(UART_FCR_ENABLE_FIFO, cap + UART_FCR);
-	scratch = inb(cap + UART_IIR);
-
-	if (scratch & 0xC0)
-		brd->uart_type = PORT_16550A;
-	else
-		brd->uart_type = PORT_16450;
-	if (!request_region(brd->ports[0].ioaddr, 8 * brd->info->nports,
-			"mxser(IO)")) {
-		printk(KERN_ERR "mxser: can't request ports I/O region: "
-				"0x%.8lx-0x%.8lx\n",
-				brd->ports[0].ioaddr, brd->ports[0].ioaddr +
-				8 * brd->info->nports - 1);
-		return -EIO;
-	}
-	if (!request_region(brd->vector, 1, "mxser(vector)")) {
-		release_region(brd->ports[0].ioaddr, 8 * brd->info->nports);
-		printk(KERN_ERR "mxser: can't request interrupt vector region: "
-				"0x%.8lx-0x%.8lx\n",
-				brd->ports[0].ioaddr, brd->ports[0].ioaddr +
-				8 * brd->info->nports - 1);
-		return -EIO;
-	}
-	return brd->info->nports;
-
-err_irqconflict:
-	printk(KERN_ERR "mxser: invalid interrupt number\n");
-	return -EIO;
-}
-
-static int __devinit mxser_probe(struct pci_dev *pdev,
-		const struct pci_device_id *ent)
-{
-#ifdef CONFIG_PCI
-	struct mxser_board *brd;
-	unsigned int i, j;
-	unsigned long ioaddress;
-	int retval = -EINVAL;
-
-	for (i = 0; i < MXSER_BOARDS; i++)
-		if (mxser_boards[i].info == NULL)
-			break;
-
-	if (i >= MXSER_BOARDS) {
-		dev_err(&pdev->dev, "too many boards found (maximum %d), board "
-				"not configured\n", MXSER_BOARDS);
-		goto err;
-	}
-
-	brd = &mxser_boards[i];
-	brd->idx = i * MXSER_PORTS_PER_BOARD;
-	dev_info(&pdev->dev, "found MOXA %s board (BusNo=%d, DevNo=%d)\n",
-		mxser_cards[ent->driver_data].name,
-		pdev->bus->number, PCI_SLOT(pdev->devfn));
-
-	retval = pci_enable_device(pdev);
-	if (retval) {
-		dev_err(&pdev->dev, "PCI enable failed\n");
-		goto err;
-	}
-
-	/* io address */
-	ioaddress = pci_resource_start(pdev, 2);
-	retval = pci_request_region(pdev, 2, "mxser(IO)");
-	if (retval)
-		goto err_dis;
-
-	brd->info = &mxser_cards[ent->driver_data];
-	for (i = 0; i < brd->info->nports; i++)
-		brd->ports[i].ioaddr = ioaddress + 8 * i;
-
-	/* vector */
-	ioaddress = pci_resource_start(pdev, 3);
-	retval = pci_request_region(pdev, 3, "mxser(vector)");
-	if (retval)
-		goto err_zero;
-	brd->vector = ioaddress;
-
-	/* irq */
-	brd->irq = pdev->irq;
-
-	brd->chip_flag = CheckIsMoxaMust(brd->ports[0].ioaddr);
-	brd->uart_type = PORT_16550A;
-	brd->vector_mask = 0;
-
-	for (i = 0; i < brd->info->nports; i++) {
-		for (j = 0; j < UART_INFO_NUM; j++) {
-			if (Gpci_uart_info[j].type == brd->chip_flag) {
-				brd->ports[i].max_baud =
-					Gpci_uart_info[j].max_baud;
-
-				/* exception....CP-102 */
-				if (brd->info->flags & MXSER_HIGHBAUD)
-					brd->ports[i].max_baud = 921600;
-				break;
-			}
-		}
-	}
-
-	if (brd->chip_flag == MOXA_MUST_MU860_HWID) {
-		for (i = 0; i < brd->info->nports; i++) {
-			if (i < 4)
-				brd->ports[i].opmode_ioaddr = ioaddress + 4;
-			else
-				brd->ports[i].opmode_ioaddr = ioaddress + 0x0c;
-		}
-		outb(0, ioaddress + 4);	/* default set to RS232 mode */
-		outb(0, ioaddress + 0x0c);	/* default set to RS232 mode */
-	}
-
-	for (i = 0; i < brd->info->nports; i++) {
-		brd->vector_mask |= (1 << i);
-		brd->ports[i].baud_base = 921600;
-	}
-
-	/* mxser_initbrd will hook ISR. */
-	retval = mxser_initbrd(brd, pdev);
-	if (retval)
-		goto err_rel3;
-
-	for (i = 0; i < brd->info->nports; i++)
-		tty_register_device(mxvar_sdriver, brd->idx + i, &pdev->dev);
-
-	pci_set_drvdata(pdev, brd);
-
-	return 0;
-err_rel3:
-	pci_release_region(pdev, 3);
-err_zero:
-	brd->info = NULL;
-	pci_release_region(pdev, 2);
-err_dis:
-	pci_disable_device(pdev);
-err:
-	return retval;
-#else
-	return -ENODEV;
-#endif
-}
-
-static void __devexit mxser_remove(struct pci_dev *pdev)
-{
-#ifdef CONFIG_PCI
-	struct mxser_board *brd = pci_get_drvdata(pdev);
-	unsigned int i;
-
-	for (i = 0; i < brd->info->nports; i++)
-		tty_unregister_device(mxvar_sdriver, brd->idx + i);
-
-	free_irq(pdev->irq, brd);
-	pci_release_region(pdev, 2);
-	pci_release_region(pdev, 3);
-	pci_disable_device(pdev);
-	brd->info = NULL;
-#endif
-}
-
-static struct pci_driver mxser_driver = {
-	.name = "mxser",
-	.id_table = mxser_pcibrds,
-	.probe = mxser_probe,
-	.remove = __devexit_p(mxser_remove)
-};
-
-static int __init mxser_module_init(void)
-{
-	struct mxser_board *brd;
-	unsigned int b, i, m;
-	int retval;
-
-	mxvar_sdriver = alloc_tty_driver(MXSER_PORTS + 1);
-	if (!mxvar_sdriver)
-		return -ENOMEM;
-
-	printk(KERN_INFO "MOXA Smartio/Industio family driver version %s\n",
-		MXSER_VERSION);
-
-	/* Initialize the tty_driver structure */
-	mxvar_sdriver->owner = THIS_MODULE;
-	mxvar_sdriver->magic = TTY_DRIVER_MAGIC;
-	mxvar_sdriver->name = "ttyMI";
-	mxvar_sdriver->major = ttymajor;
-	mxvar_sdriver->minor_start = 0;
-	mxvar_sdriver->num = MXSER_PORTS + 1;
-	mxvar_sdriver->type = TTY_DRIVER_TYPE_SERIAL;
-	mxvar_sdriver->subtype = SERIAL_TYPE_NORMAL;
-	mxvar_sdriver->init_termios = tty_std_termios;
-	mxvar_sdriver->init_termios.c_cflag = B9600|CS8|CREAD|HUPCL|CLOCAL;
-	mxvar_sdriver->flags = TTY_DRIVER_REAL_RAW|TTY_DRIVER_DYNAMIC_DEV;
-	tty_set_operations(mxvar_sdriver, &mxser_ops);
-
-	retval = tty_register_driver(mxvar_sdriver);
-	if (retval) {
-		printk(KERN_ERR "Couldn't install MOXA Smartio/Industio family "
-				"tty driver !\n");
-		goto err_put;
-	}
-
-	/* Start finding ISA boards here */
-	for (m = 0, b = 0; b < MXSER_BOARDS; b++) {
-		if (!ioaddr[b])
-			continue;
-
-		brd = &mxser_boards[m];
-		retval = mxser_get_ISA_conf(ioaddr[b], brd);
-		if (retval <= 0) {
-			brd->info = NULL;
-			continue;
-		}
-
-		printk(KERN_INFO "mxser: found MOXA %s board (CAP=0x%lx)\n",
-				brd->info->name, ioaddr[b]);
-
-		/* mxser_initbrd will hook ISR. */
-		if (mxser_initbrd(brd, NULL) < 0) {
-			brd->info = NULL;
-			continue;
-		}
-
-		brd->idx = m * MXSER_PORTS_PER_BOARD;
-		for (i = 0; i < brd->info->nports; i++)
-			tty_register_device(mxvar_sdriver, brd->idx + i, NULL);
-
-		m++;
-	}
-
-	retval = pci_register_driver(&mxser_driver);
-	if (retval) {
-		printk(KERN_ERR "mxser: can't register pci driver\n");
-		if (!m) {
-			retval = -ENODEV;
-			goto err_unr;
-		} /* else: we have some ISA cards under control */
-	}
-
-	return 0;
-err_unr:
-	tty_unregister_driver(mxvar_sdriver);
-err_put:
-	put_tty_driver(mxvar_sdriver);
-	return retval;
-}
-
-static void __exit mxser_module_exit(void)
-{
-	unsigned int i, j;
-
-	pci_unregister_driver(&mxser_driver);
-
-	for (i = 0; i < MXSER_BOARDS; i++) /* ISA remains */
-		if (mxser_boards[i].info != NULL)
-			for (j = 0; j < mxser_boards[i].info->nports; j++)
-				tty_unregister_device(mxvar_sdriver,
-						mxser_boards[i].idx + j);
-	tty_unregister_driver(mxvar_sdriver);
-	put_tty_driver(mxvar_sdriver);
-
-	for (i = 0; i < MXSER_BOARDS; i++)
-		if (mxser_boards[i].info != NULL)
-			mxser_release_ISA_res(&mxser_boards[i]);
-}
-
-module_init(mxser_module_init);
-module_exit(mxser_module_exit);
diff --git a/drivers/char/mxser.h b/drivers/char/mxser.h
deleted file mode 100644
index 41878a69203d..000000000000
--- a/drivers/char/mxser.h
+++ /dev/null
@@ -1,150 +0,0 @@
-#ifndef _MXSER_H
-#define _MXSER_H
-
-/*
- *	Semi-public control interfaces
- */
-
-/*
- *	MOXA ioctls
- */
-
-#define MOXA			0x400
-#define MOXA_GETDATACOUNT	(MOXA + 23)
-#define MOXA_DIAGNOSE		(MOXA + 50)
-#define MOXA_CHKPORTENABLE	(MOXA + 60)
-#define MOXA_HighSpeedOn	(MOXA + 61)
-#define MOXA_GET_MAJOR		(MOXA + 63)
-#define MOXA_GETMSTATUS		(MOXA + 65)
-#define MOXA_SET_OP_MODE	(MOXA + 66)
-#define MOXA_GET_OP_MODE	(MOXA + 67)
-
-#define RS232_MODE		0
-#define RS485_2WIRE_MODE	1
-#define RS422_MODE		2
-#define RS485_4WIRE_MODE	3
-#define OP_MODE_MASK		3
-
-#define MOXA_SDS_RSTICOUNTER	(MOXA + 69)
-#define MOXA_ASPP_OQUEUE  	(MOXA + 70)
-#define MOXA_ASPP_MON     	(MOXA + 73)
-#define MOXA_ASPP_LSTATUS 	(MOXA + 74)
-#define MOXA_ASPP_MON_EXT 	(MOXA + 75)
-#define MOXA_SET_BAUD_METHOD	(MOXA + 76)
-
-/* --------------------------------------------------- */
-
-#define NPPI_NOTIFY_PARITY	0x01
-#define NPPI_NOTIFY_FRAMING	0x02
-#define NPPI_NOTIFY_HW_OVERRUN	0x04
-#define NPPI_NOTIFY_SW_OVERRUN	0x08
-#define NPPI_NOTIFY_BREAK	0x10
-
-#define NPPI_NOTIFY_CTSHOLD         0x01	/* Tx hold by CTS low */
-#define NPPI_NOTIFY_DSRHOLD         0x02	/* Tx hold by DSR low */
-#define NPPI_NOTIFY_XOFFHOLD        0x08	/* Tx hold by Xoff received */
-#define NPPI_NOTIFY_XOFFXENT        0x10	/* Xoff Sent */
-
-/* follow just for Moxa Must chip define. */
-/* */
-/* when LCR register (offset 0x03) write following value, */
-/* the Must chip will enter enchance mode. And write value */
-/* on EFR (offset 0x02) bit 6,7 to change bank. */
-#define MOXA_MUST_ENTER_ENCHANCE	0xBF
-
-/* when enhance mode enable, access on general bank register */
-#define MOXA_MUST_GDL_REGISTER		0x07
-#define MOXA_MUST_GDL_MASK		0x7F
-#define MOXA_MUST_GDL_HAS_BAD_DATA	0x80
-
-#define MOXA_MUST_LSR_RERR		0x80	/* error in receive FIFO */
-/* enchance register bank select and enchance mode setting register */
-/* when LCR register equal to 0xBF */
-#define MOXA_MUST_EFR_REGISTER		0x02
-/* enchance mode enable */
-#define MOXA_MUST_EFR_EFRB_ENABLE	0x10
-/* enchance reister bank set 0, 1, 2 */
-#define MOXA_MUST_EFR_BANK0		0x00
-#define MOXA_MUST_EFR_BANK1		0x40
-#define MOXA_MUST_EFR_BANK2		0x80
-#define MOXA_MUST_EFR_BANK3		0xC0
-#define MOXA_MUST_EFR_BANK_MASK		0xC0
-
-/* set XON1 value register, when LCR=0xBF and change to bank0 */
-#define MOXA_MUST_XON1_REGISTER		0x04
-
-/* set XON2 value register, when LCR=0xBF and change to bank0 */
-#define MOXA_MUST_XON2_REGISTER		0x05
-
-/* set XOFF1 value register, when LCR=0xBF and change to bank0 */
-#define MOXA_MUST_XOFF1_REGISTER	0x06
-
-/* set XOFF2 value register, when LCR=0xBF and change to bank0 */
-#define MOXA_MUST_XOFF2_REGISTER	0x07
-
-#define MOXA_MUST_RBRTL_REGISTER	0x04
-#define MOXA_MUST_RBRTH_REGISTER	0x05
-#define MOXA_MUST_RBRTI_REGISTER	0x06
-#define MOXA_MUST_THRTL_REGISTER	0x07
-#define MOXA_MUST_ENUM_REGISTER		0x04
-#define MOXA_MUST_HWID_REGISTER		0x05
-#define MOXA_MUST_ECR_REGISTER		0x06
-#define MOXA_MUST_CSR_REGISTER		0x07
-
-/* good data mode enable */
-#define MOXA_MUST_FCR_GDA_MODE_ENABLE	0x20
-/* only good data put into RxFIFO */
-#define MOXA_MUST_FCR_GDA_ONLY_ENABLE	0x10
-
-/* enable CTS interrupt */
-#define MOXA_MUST_IER_ECTSI		0x80
-/* enable RTS interrupt */
-#define MOXA_MUST_IER_ERTSI		0x40
-/* enable Xon/Xoff interrupt */
-#define MOXA_MUST_IER_XINT		0x20
-/* enable GDA interrupt */
-#define MOXA_MUST_IER_EGDAI		0x10
-
-#define MOXA_MUST_RECV_ISR		(UART_IER_RDI | MOXA_MUST_IER_EGDAI)
-
-/* GDA interrupt pending */
-#define MOXA_MUST_IIR_GDA		0x1C
-#define MOXA_MUST_IIR_RDA		0x04
-#define MOXA_MUST_IIR_RTO		0x0C
-#define MOXA_MUST_IIR_LSR		0x06
-
-/* recieved Xon/Xoff or specical interrupt pending */
-#define MOXA_MUST_IIR_XSC		0x10
-
-/* RTS/CTS change state interrupt pending */
-#define MOXA_MUST_IIR_RTSCTS		0x20
-#define MOXA_MUST_IIR_MASK		0x3E
-
-#define MOXA_MUST_MCR_XON_FLAG		0x40
-#define MOXA_MUST_MCR_XON_ANY		0x80
-#define MOXA_MUST_MCR_TX_XON		0x08
-
-/* software flow control on chip mask value */
-#define MOXA_MUST_EFR_SF_MASK		0x0F
-/* send Xon1/Xoff1 */
-#define MOXA_MUST_EFR_SF_TX1		0x08
-/* send Xon2/Xoff2 */
-#define MOXA_MUST_EFR_SF_TX2		0x04
-/* send Xon1,Xon2/Xoff1,Xoff2 */
-#define MOXA_MUST_EFR_SF_TX12		0x0C
-/* don't send Xon/Xoff */
-#define MOXA_MUST_EFR_SF_TX_NO		0x00
-/* Tx software flow control mask */
-#define MOXA_MUST_EFR_SF_TX_MASK	0x0C
-/* don't receive Xon/Xoff */
-#define MOXA_MUST_EFR_SF_RX_NO		0x00
-/* receive Xon1/Xoff1 */
-#define MOXA_MUST_EFR_SF_RX1		0x02
-/* receive Xon2/Xoff2 */
-#define MOXA_MUST_EFR_SF_RX2		0x01
-/* receive Xon1,Xon2/Xoff1,Xoff2 */
-#define MOXA_MUST_EFR_SF_RX12		0x03
-/* Rx software flow control mask */
-#define MOXA_MUST_EFR_SF_RX_MASK	0x03
-
-#endif
diff --git a/drivers/char/nozomi.c b/drivers/char/nozomi.c
deleted file mode 100644
index 513ba12064ea..000000000000
--- a/drivers/char/nozomi.c
+++ /dev/null
@@ -1,1993 +0,0 @@
-/*
- * nozomi.c  -- HSDPA driver Broadband Wireless Data Card - Globe Trotter
- *
- * Written by: Ulf Jakobsson,
- *             Jan Åkerfeldt,
- *             Stefan Thomasson,
- *
- * Maintained by: Paul Hardwick (p.hardwick@option.com)
- *
- * Patches:
- *          Locking code changes for Vodafone by Sphere Systems Ltd,
- *                              Andrew Bird (ajb@spheresystems.co.uk )
- *                              & Phil Sanderson
- *
- * Source has been ported from an implementation made by Filip Aben @ Option
- *
- * --------------------------------------------------------------------------
- *
- * Copyright (c) 2005,2006 Option Wireless Sweden AB
- * Copyright (c) 2006 Sphere Systems Ltd
- * Copyright (c) 2006 Option Wireless n/v
- * All rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
- * --------------------------------------------------------------------------
- */
-
-/* Enable this to have a lot of debug printouts */
-#define DEBUG
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/ioport.h>
-#include <linux/tty.h>
-#include <linux/tty_driver.h>
-#include <linux/tty_flip.h>
-#include <linux/sched.h>
-#include <linux/serial.h>
-#include <linux/interrupt.h>
-#include <linux/kmod.h>
-#include <linux/init.h>
-#include <linux/kfifo.h>
-#include <linux/uaccess.h>
-#include <linux/slab.h>
-#include <asm/byteorder.h>
-
-#include <linux/delay.h>
-
-
-#define VERSION_STRING DRIVER_DESC " 2.1d (build date: " \
-					__DATE__ " " __TIME__ ")"
-
-/*    Macros definitions */
-
-/* Default debug printout level */
-#define NOZOMI_DEBUG_LEVEL 0x00
-
-#define P_BUF_SIZE 128
-#define NFO(_err_flag_, args...)				\
-do {								\
-	char tmp[P_BUF_SIZE];					\
-	snprintf(tmp, sizeof(tmp), ##args);			\
-	printk(_err_flag_ "[%d] %s(): %s\n", __LINE__,		\
-		__func__, tmp);				\
-} while (0)
-
-#define DBG1(args...) D_(0x01, ##args)
-#define DBG2(args...) D_(0x02, ##args)
-#define DBG3(args...) D_(0x04, ##args)
-#define DBG4(args...) D_(0x08, ##args)
-#define DBG5(args...) D_(0x10, ##args)
-#define DBG6(args...) D_(0x20, ##args)
-#define DBG7(args...) D_(0x40, ##args)
-#define DBG8(args...) D_(0x80, ##args)
-
-#ifdef DEBUG
-/* Do we need this settable at runtime? */
-static int debug = NOZOMI_DEBUG_LEVEL;
-
-#define D(lvl, args...)  do \
-			{if (lvl & debug) NFO(KERN_DEBUG, ##args); } \
-			while (0)
-#define D_(lvl, args...) D(lvl, ##args)
-
-/* These printouts are always printed */
-
-#else
-static int debug;
-#define D_(lvl, args...)
-#endif
-
-/* TODO: rewrite to optimize macros... */
-
-#define TMP_BUF_MAX 256
-
-#define DUMP(buf__,len__) \
-  do {  \
-    char tbuf[TMP_BUF_MAX] = {0};\
-    if (len__ > 1) {\
-	snprintf(tbuf, len__ > TMP_BUF_MAX ? TMP_BUF_MAX : len__, "%s", buf__);\
-	if (tbuf[len__-2] == '\r') {\
-		tbuf[len__-2] = 'r';\
-	} \
-	DBG1("SENDING: '%s' (%d+n)", tbuf, len__);\
-    } else {\
-	DBG1("SENDING: '%s' (%d)", tbuf, len__);\
-    } \
-} while (0)
-
-/*    Defines */
-#define NOZOMI_NAME		"nozomi"
-#define NOZOMI_NAME_TTY		"nozomi_tty"
-#define DRIVER_DESC		"Nozomi driver"
-
-#define NTTY_TTY_MAXMINORS	256
-#define NTTY_FIFO_BUFFER_SIZE	8192
-
-/* Must be power of 2 */
-#define FIFO_BUFFER_SIZE_UL	8192
-
-/* Size of tmp send buffer to card */
-#define SEND_BUF_MAX		1024
-#define RECEIVE_BUF_MAX		4
-
-
-#define R_IIR		0x0000	/* Interrupt Identity Register */
-#define R_FCR		0x0000	/* Flow Control Register */
-#define R_IER		0x0004	/* Interrupt Enable Register */
-
-#define CONFIG_MAGIC	0xEFEFFEFE
-#define TOGGLE_VALID	0x0000
-
-/* Definition of interrupt tokens */
-#define MDM_DL1		0x0001
-#define MDM_UL1		0x0002
-#define MDM_DL2		0x0004
-#define MDM_UL2		0x0008
-#define DIAG_DL1	0x0010
-#define DIAG_DL2	0x0020
-#define DIAG_UL		0x0040
-#define APP1_DL		0x0080
-#define APP1_UL		0x0100
-#define APP2_DL		0x0200
-#define APP2_UL		0x0400
-#define CTRL_DL		0x0800
-#define CTRL_UL		0x1000
-#define RESET		0x8000
-
-#define MDM_DL		(MDM_DL1  | MDM_DL2)
-#define MDM_UL		(MDM_UL1  | MDM_UL2)
-#define DIAG_DL		(DIAG_DL1 | DIAG_DL2)
-
-/* modem signal definition */
-#define CTRL_DSR	0x0001
-#define CTRL_DCD	0x0002
-#define CTRL_RI		0x0004
-#define CTRL_CTS	0x0008
-
-#define CTRL_DTR	0x0001
-#define CTRL_RTS	0x0002
-
-#define MAX_PORT		4
-#define NOZOMI_MAX_PORTS	5
-#define NOZOMI_MAX_CARDS	(NTTY_TTY_MAXMINORS / MAX_PORT)
-
-/*    Type definitions */
-
-/*
- * There are two types of nozomi cards,
- * one with 2048 memory and with 8192 memory
- */
-enum card_type {
-	F32_2 = 2048,	/* 512 bytes downlink + uplink * 2 -> 2048 */
-	F32_8 = 8192,	/* 3072 bytes downl. + 1024 bytes uplink * 2 -> 8192 */
-};
-
-/* Initialization states a card can be in */
-enum card_state {
-	NOZOMI_STATE_UKNOWN	= 0,
-	NOZOMI_STATE_ENABLED	= 1,	/* pci device enabled */
-	NOZOMI_STATE_ALLOCATED	= 2,	/* config setup done */
-	NOZOMI_STATE_READY	= 3,	/* flowcontrols received */
-};
-
-/* Two different toggle channels exist */
-enum channel_type {
-	CH_A = 0,
-	CH_B = 1,
-};
-
-/* Port definition for the card regarding flow control */
-enum ctrl_port_type {
-	CTRL_CMD	= 0,
-	CTRL_MDM	= 1,
-	CTRL_DIAG	= 2,
-	CTRL_APP1	= 3,
-	CTRL_APP2	= 4,
-	CTRL_ERROR	= -1,
-};
-
-/* Ports that the nozomi has */
-enum port_type {
-	PORT_MDM	= 0,
-	PORT_DIAG	= 1,
-	PORT_APP1	= 2,
-	PORT_APP2	= 3,
-	PORT_CTRL	= 4,
-	PORT_ERROR	= -1,
-};
-
-#ifdef __BIG_ENDIAN
-/* Big endian */
-
-struct toggles {
-	unsigned int enabled:5;	/*
-				 * Toggle fields are valid if enabled is 0,
-				 * else A-channels must always be used.
-				 */
-	unsigned int diag_dl:1;
-	unsigned int mdm_dl:1;
-	unsigned int mdm_ul:1;
-} __attribute__ ((packed));
-
-/* Configuration table to read at startup of card */
-/* Is for now only needed during initialization phase */
-struct config_table {
-	u32 signature;
-	u16 product_information;
-	u16 version;
-	u8 pad3[3];
-	struct toggles toggle;
-	u8 pad1[4];
-	u16 dl_mdm_len1;	/*
-				 * If this is 64, it can hold
-				 * 60 bytes + 4 that is length field
-				 */
-	u16 dl_start;
-
-	u16 dl_diag_len1;
-	u16 dl_mdm_len2;	/*
-				 * If this is 64, it can hold
-				 * 60 bytes + 4 that is length field
-				 */
-	u16 dl_app1_len;
-
-	u16 dl_diag_len2;
-	u16 dl_ctrl_len;
-	u16 dl_app2_len;
-	u8 pad2[16];
-	u16 ul_mdm_len1;
-	u16 ul_start;
-	u16 ul_diag_len;
-	u16 ul_mdm_len2;
-	u16 ul_app1_len;
-	u16 ul_app2_len;
-	u16 ul_ctrl_len;
-} __attribute__ ((packed));
-
-/* This stores all control downlink flags */
-struct ctrl_dl {
-	u8 port;
-	unsigned int reserved:4;
-	unsigned int CTS:1;
-	unsigned int RI:1;
-	unsigned int DCD:1;
-	unsigned int DSR:1;
-} __attribute__ ((packed));
-
-/* This stores all control uplink flags */
-struct ctrl_ul {
-	u8 port;
-	unsigned int reserved:6;
-	unsigned int RTS:1;
-	unsigned int DTR:1;
-} __attribute__ ((packed));
-
-#else
-/* Little endian */
-
-/* This represents the toggle information */
-struct toggles {
-	unsigned int mdm_ul:1;
-	unsigned int mdm_dl:1;
-	unsigned int diag_dl:1;
-	unsigned int enabled:5;	/*
-				 * Toggle fields are valid if enabled is 0,
-				 * else A-channels must always be used.
-				 */
-} __attribute__ ((packed));
-
-/* Configuration table to read at startup of card */
-struct config_table {
-	u32 signature;
-	u16 version;
-	u16 product_information;
-	struct toggles toggle;
-	u8 pad1[7];
-	u16 dl_start;
-	u16 dl_mdm_len1;	/*
-				 * If this is 64, it can hold
-				 * 60 bytes + 4 that is length field
-				 */
-	u16 dl_mdm_len2;
-	u16 dl_diag_len1;
-	u16 dl_diag_len2;
-	u16 dl_app1_len;
-	u16 dl_app2_len;
-	u16 dl_ctrl_len;
-	u8 pad2[16];
-	u16 ul_start;
-	u16 ul_mdm_len2;
-	u16 ul_mdm_len1;
-	u16 ul_diag_len;
-	u16 ul_app1_len;
-	u16 ul_app2_len;
-	u16 ul_ctrl_len;
-} __attribute__ ((packed));
-
-/* This stores all control downlink flags */
-struct ctrl_dl {
-	unsigned int DSR:1;
-	unsigned int DCD:1;
-	unsigned int RI:1;
-	unsigned int CTS:1;
-	unsigned int reserverd:4;
-	u8 port;
-} __attribute__ ((packed));
-
-/* This stores all control uplink flags */
-struct ctrl_ul {
-	unsigned int DTR:1;
-	unsigned int RTS:1;
-	unsigned int reserved:6;
-	u8 port;
-} __attribute__ ((packed));
-#endif
-
-/* This holds all information that is needed regarding a port */
-struct port {
-	struct tty_port port;
-	u8 update_flow_control;
-	struct ctrl_ul ctrl_ul;
-	struct ctrl_dl ctrl_dl;
-	struct kfifo fifo_ul;
-	void __iomem *dl_addr[2];
-	u32 dl_size[2];
-	u8 toggle_dl;
-	void __iomem *ul_addr[2];
-	u32 ul_size[2];
-	u8 toggle_ul;
-	u16 token_dl;
-
-	/* mutex to ensure one access patch to this port */
-	struct mutex tty_sem;
-	wait_queue_head_t tty_wait;
-	struct async_icount tty_icount;
-
-	struct nozomi *dc;
-};
-
-/* Private data one for each card in the system */
-struct nozomi {
-	void __iomem *base_addr;
-	unsigned long flip;
-
-	/* Pointers to registers */
-	void __iomem *reg_iir;
-	void __iomem *reg_fcr;
-	void __iomem *reg_ier;
-
-	u16 last_ier;
-	enum card_type card_type;
-	struct config_table config_table;	/* Configuration table */
-	struct pci_dev *pdev;
-	struct port port[NOZOMI_MAX_PORTS];
-	u8 *send_buf;
-
-	spinlock_t spin_mutex;	/* secures access to registers and tty */
-
-	unsigned int index_start;
-	enum card_state state;
-	u32 open_ttys;
-};
-
-/* This is a data packet that is read or written to/from card */
-struct buffer {
-	u32 size;		/* size is the length of the data buffer */
-	u8 *data;
-} __attribute__ ((packed));
-
-/*    Global variables */
-static const struct pci_device_id nozomi_pci_tbl[] __devinitconst = {
-	{PCI_DEVICE(0x1931, 0x000c)},	/* Nozomi HSDPA */
-	{},
-};
-
-MODULE_DEVICE_TABLE(pci, nozomi_pci_tbl);
-
-static struct nozomi *ndevs[NOZOMI_MAX_CARDS];
-static struct tty_driver *ntty_driver;
-
-static const struct tty_port_operations noz_tty_port_ops;
-
-/*
- * find card by tty_index
- */
-static inline struct nozomi *get_dc_by_tty(const struct tty_struct *tty)
-{
-	return tty ? ndevs[tty->index / MAX_PORT] : NULL;
-}
-
-static inline struct port *get_port_by_tty(const struct tty_struct *tty)
-{
-	struct nozomi *ndev = get_dc_by_tty(tty);
-	return ndev ? &ndev->port[tty->index % MAX_PORT] : NULL;
-}
-
-/*
- * TODO:
- * -Optimize
- * -Rewrite cleaner
- */
-
-static void read_mem32(u32 *buf, const void __iomem *mem_addr_start,
-			u32 size_bytes)
-{
-	u32 i = 0;
-	const u32 __iomem *ptr = mem_addr_start;
-	u16 *buf16;
-
-	if (unlikely(!ptr || !buf))
-		goto out;
-
-	/* shortcut for extremely often used cases */
-	switch (size_bytes) {
-	case 2:	/* 2 bytes */
-		buf16 = (u16 *) buf;
-		*buf16 = __le16_to_cpu(readw(ptr));
-		goto out;
-		break;
-	case 4:	/* 4 bytes */
-		*(buf) = __le32_to_cpu(readl(ptr));
-		goto out;
-		break;
-	}
-
-	while (i < size_bytes) {
-		if (size_bytes - i == 2) {
-			/* Handle 2 bytes in the end */
-			buf16 = (u16 *) buf;
-			*(buf16) = __le16_to_cpu(readw(ptr));
-			i += 2;
-		} else {
-			/* Read 4 bytes */
-			*(buf) = __le32_to_cpu(readl(ptr));
-			i += 4;
-		}
-		buf++;
-		ptr++;
-	}
-out:
-	return;
-}
-
-/*
- * TODO:
- * -Optimize
- * -Rewrite cleaner
- */
-static u32 write_mem32(void __iomem *mem_addr_start, const u32 *buf,
-			u32 size_bytes)
-{
-	u32 i = 0;
-	u32 __iomem *ptr = mem_addr_start;
-	const u16 *buf16;
-
-	if (unlikely(!ptr || !buf))
-		return 0;
-
-	/* shortcut for extremely often used cases */
-	switch (size_bytes) {
-	case 2:	/* 2 bytes */
-		buf16 = (const u16 *)buf;
-		writew(__cpu_to_le16(*buf16), ptr);
-		return 2;
-		break;
-	case 1: /*
-		 * also needs to write 4 bytes in this case
-		 * so falling through..
-		 */
-	case 4: /* 4 bytes */
-		writel(__cpu_to_le32(*buf), ptr);
-		return 4;
-		break;
-	}
-
-	while (i < size_bytes) {
-		if (size_bytes - i == 2) {
-			/* 2 bytes */
-			buf16 = (const u16 *)buf;
-			writew(__cpu_to_le16(*buf16), ptr);
-			i += 2;
-		} else {
-			/* 4 bytes */
-			writel(__cpu_to_le32(*buf), ptr);
-			i += 4;
-		}
-		buf++;
-		ptr++;
-	}
-	return i;
-}
-
-/* Setup pointers to different channels and also setup buffer sizes. */
-static void setup_memory(struct nozomi *dc)
-{
-	void __iomem *offset = dc->base_addr + dc->config_table.dl_start;
-	/* The length reported is including the length field of 4 bytes,
-	 * hence subtract with 4.
-	 */
-	const u16 buff_offset = 4;
-
-	/* Modem port dl configuration */
-	dc->port[PORT_MDM].dl_addr[CH_A] = offset;
-	dc->port[PORT_MDM].dl_addr[CH_B] =
-				(offset += dc->config_table.dl_mdm_len1);
-	dc->port[PORT_MDM].dl_size[CH_A] =
-				dc->config_table.dl_mdm_len1 - buff_offset;
-	dc->port[PORT_MDM].dl_size[CH_B] =
-				dc->config_table.dl_mdm_len2 - buff_offset;
-
-	/* Diag port dl configuration */
-	dc->port[PORT_DIAG].dl_addr[CH_A] =
-				(offset += dc->config_table.dl_mdm_len2);
-	dc->port[PORT_DIAG].dl_size[CH_A] =
-				dc->config_table.dl_diag_len1 - buff_offset;
-	dc->port[PORT_DIAG].dl_addr[CH_B] =
-				(offset += dc->config_table.dl_diag_len1);
-	dc->port[PORT_DIAG].dl_size[CH_B] =
-				dc->config_table.dl_diag_len2 - buff_offset;
-
-	/* App1 port dl configuration */
-	dc->port[PORT_APP1].dl_addr[CH_A] =
-				(offset += dc->config_table.dl_diag_len2);
-	dc->port[PORT_APP1].dl_size[CH_A] =
-				dc->config_table.dl_app1_len - buff_offset;
-
-	/* App2 port dl configuration */
-	dc->port[PORT_APP2].dl_addr[CH_A] =
-				(offset += dc->config_table.dl_app1_len);
-	dc->port[PORT_APP2].dl_size[CH_A] =
-				dc->config_table.dl_app2_len - buff_offset;
-
-	/* Ctrl dl configuration */
-	dc->port[PORT_CTRL].dl_addr[CH_A] =
-				(offset += dc->config_table.dl_app2_len);
-	dc->port[PORT_CTRL].dl_size[CH_A] =
-				dc->config_table.dl_ctrl_len - buff_offset;
-
-	offset = dc->base_addr + dc->config_table.ul_start;
-
-	/* Modem Port ul configuration */
-	dc->port[PORT_MDM].ul_addr[CH_A] = offset;
-	dc->port[PORT_MDM].ul_size[CH_A] =
-				dc->config_table.ul_mdm_len1 - buff_offset;
-	dc->port[PORT_MDM].ul_addr[CH_B] =
-				(offset += dc->config_table.ul_mdm_len1);
-	dc->port[PORT_MDM].ul_size[CH_B] =
-				dc->config_table.ul_mdm_len2 - buff_offset;
-
-	/* Diag port ul configuration */
-	dc->port[PORT_DIAG].ul_addr[CH_A] =
-				(offset += dc->config_table.ul_mdm_len2);
-	dc->port[PORT_DIAG].ul_size[CH_A] =
-				dc->config_table.ul_diag_len - buff_offset;
-
-	/* App1 port ul configuration */
-	dc->port[PORT_APP1].ul_addr[CH_A] =
-				(offset += dc->config_table.ul_diag_len);
-	dc->port[PORT_APP1].ul_size[CH_A] =
-				dc->config_table.ul_app1_len - buff_offset;
-
-	/* App2 port ul configuration */
-	dc->port[PORT_APP2].ul_addr[CH_A] =
-				(offset += dc->config_table.ul_app1_len);
-	dc->port[PORT_APP2].ul_size[CH_A] =
-				dc->config_table.ul_app2_len - buff_offset;
-
-	/* Ctrl ul configuration */
-	dc->port[PORT_CTRL].ul_addr[CH_A] =
-				(offset += dc->config_table.ul_app2_len);
-	dc->port[PORT_CTRL].ul_size[CH_A] =
-				dc->config_table.ul_ctrl_len - buff_offset;
-}
-
-/* Dump config table under initalization phase */
-#ifdef DEBUG
-static void dump_table(const struct nozomi *dc)
-{
-	DBG3("signature: 0x%08X", dc->config_table.signature);
-	DBG3("version: 0x%04X", dc->config_table.version);
-	DBG3("product_information: 0x%04X", \
-				dc->config_table.product_information);
-	DBG3("toggle enabled: %d", dc->config_table.toggle.enabled);
-	DBG3("toggle up_mdm: %d", dc->config_table.toggle.mdm_ul);
-	DBG3("toggle dl_mdm: %d", dc->config_table.toggle.mdm_dl);
-	DBG3("toggle dl_dbg: %d", dc->config_table.toggle.diag_dl);
-
-	DBG3("dl_start: 0x%04X", dc->config_table.dl_start);
-	DBG3("dl_mdm_len0: 0x%04X, %d", dc->config_table.dl_mdm_len1,
-	   dc->config_table.dl_mdm_len1);
-	DBG3("dl_mdm_len1: 0x%04X, %d", dc->config_table.dl_mdm_len2,
-	   dc->config_table.dl_mdm_len2);
-	DBG3("dl_diag_len0: 0x%04X, %d", dc->config_table.dl_diag_len1,
-	   dc->config_table.dl_diag_len1);
-	DBG3("dl_diag_len1: 0x%04X, %d", dc->config_table.dl_diag_len2,
-	   dc->config_table.dl_diag_len2);
-	DBG3("dl_app1_len: 0x%04X, %d", dc->config_table.dl_app1_len,
-	   dc->config_table.dl_app1_len);
-	DBG3("dl_app2_len: 0x%04X, %d", dc->config_table.dl_app2_len,
-	   dc->config_table.dl_app2_len);
-	DBG3("dl_ctrl_len: 0x%04X, %d", dc->config_table.dl_ctrl_len,
-	   dc->config_table.dl_ctrl_len);
-	DBG3("ul_start: 0x%04X, %d", dc->config_table.ul_start,
-	   dc->config_table.ul_start);
-	DBG3("ul_mdm_len[0]: 0x%04X, %d", dc->config_table.ul_mdm_len1,
-	   dc->config_table.ul_mdm_len1);
-	DBG3("ul_mdm_len[1]: 0x%04X, %d", dc->config_table.ul_mdm_len2,
-	   dc->config_table.ul_mdm_len2);
-	DBG3("ul_diag_len: 0x%04X, %d", dc->config_table.ul_diag_len,
-	   dc->config_table.ul_diag_len);
-	DBG3("ul_app1_len: 0x%04X, %d", dc->config_table.ul_app1_len,
-	   dc->config_table.ul_app1_len);
-	DBG3("ul_app2_len: 0x%04X, %d", dc->config_table.ul_app2_len,
-	   dc->config_table.ul_app2_len);
-	DBG3("ul_ctrl_len: 0x%04X, %d", dc->config_table.ul_ctrl_len,
-	   dc->config_table.ul_ctrl_len);
-}
-#else
-static inline void dump_table(const struct nozomi *dc) { }
-#endif
-
-/*
- * Read configuration table from card under intalization phase
- * Returns 1 if ok, else 0
- */
-static int nozomi_read_config_table(struct nozomi *dc)
-{
-	read_mem32((u32 *) &dc->config_table, dc->base_addr + 0,
-						sizeof(struct config_table));
-
-	if (dc->config_table.signature != CONFIG_MAGIC) {
-		dev_err(&dc->pdev->dev, "ConfigTable Bad! 0x%08X != 0x%08X\n",
-			dc->config_table.signature, CONFIG_MAGIC);
-		return 0;
-	}
-
-	if ((dc->config_table.version == 0)
-	    || (dc->config_table.toggle.enabled == TOGGLE_VALID)) {
-		int i;
-		DBG1("Second phase, configuring card");
-
-		setup_memory(dc);
-
-		dc->port[PORT_MDM].toggle_ul = dc->config_table.toggle.mdm_ul;
-		dc->port[PORT_MDM].toggle_dl = dc->config_table.toggle.mdm_dl;
-		dc->port[PORT_DIAG].toggle_dl = dc->config_table.toggle.diag_dl;
-		DBG1("toggle ports: MDM UL:%d MDM DL:%d, DIAG DL:%d",
-		   dc->port[PORT_MDM].toggle_ul,
-		   dc->port[PORT_MDM].toggle_dl, dc->port[PORT_DIAG].toggle_dl);
-
-		dump_table(dc);
-
-		for (i = PORT_MDM; i < MAX_PORT; i++) {
-			memset(&dc->port[i].ctrl_dl, 0, sizeof(struct ctrl_dl));
-			memset(&dc->port[i].ctrl_ul, 0, sizeof(struct ctrl_ul));
-		}
-
-		/* Enable control channel */
-		dc->last_ier = dc->last_ier | CTRL_DL;
-		writew(dc->last_ier, dc->reg_ier);
-
-		dc->state = NOZOMI_STATE_ALLOCATED;
-		dev_info(&dc->pdev->dev, "Initialization OK!\n");
-		return 1;
-	}
-
-	if ((dc->config_table.version > 0)
-	    && (dc->config_table.toggle.enabled != TOGGLE_VALID)) {
-		u32 offset = 0;
-		DBG1("First phase: pushing upload buffers, clearing download");
-
-		dev_info(&dc->pdev->dev, "Version of card: %d\n",
-			 dc->config_table.version);
-
-		/* Here we should disable all I/O over F32. */
-		setup_memory(dc);
-
-		/*
-		 * We should send ALL channel pair tokens back along
-		 * with reset token
-		 */
-
-		/* push upload modem buffers */
-		write_mem32(dc->port[PORT_MDM].ul_addr[CH_A],
-			(u32 *) &offset, 4);
-		write_mem32(dc->port[PORT_MDM].ul_addr[CH_B],
-			(u32 *) &offset, 4);
-
-		writew(MDM_UL | DIAG_DL | MDM_DL, dc->reg_fcr);
-
-		DBG1("First phase done");
-	}
-
-	return 1;
-}
-
-/* Enable uplink interrupts  */
-static void enable_transmit_ul(enum port_type port, struct nozomi *dc)
-{
-	static const u16 mask[] = {MDM_UL, DIAG_UL, APP1_UL, APP2_UL, CTRL_UL};
-
-	if (port < NOZOMI_MAX_PORTS) {
-		dc->last_ier |= mask[port];
-		writew(dc->last_ier, dc->reg_ier);
-	} else {
-		dev_err(&dc->pdev->dev, "Called with wrong port?\n");
-	}
-}
-
-/* Disable uplink interrupts  */
-static void disable_transmit_ul(enum port_type port, struct nozomi *dc)
-{
-	static const u16 mask[] =
-		{~MDM_UL, ~DIAG_UL, ~APP1_UL, ~APP2_UL, ~CTRL_UL};
-
-	if (port < NOZOMI_MAX_PORTS) {
-		dc->last_ier &= mask[port];
-		writew(dc->last_ier, dc->reg_ier);
-	} else {
-		dev_err(&dc->pdev->dev, "Called with wrong port?\n");
-	}
-}
-
-/* Enable downlink interrupts */
-static void enable_transmit_dl(enum port_type port, struct nozomi *dc)
-{
-	static const u16 mask[] = {MDM_DL, DIAG_DL, APP1_DL, APP2_DL, CTRL_DL};
-
-	if (port < NOZOMI_MAX_PORTS) {
-		dc->last_ier |= mask[port];
-		writew(dc->last_ier, dc->reg_ier);
-	} else {
-		dev_err(&dc->pdev->dev, "Called with wrong port?\n");
-	}
-}
-
-/* Disable downlink interrupts */
-static void disable_transmit_dl(enum port_type port, struct nozomi *dc)
-{
-	static const u16 mask[] =
-		{~MDM_DL, ~DIAG_DL, ~APP1_DL, ~APP2_DL, ~CTRL_DL};
-
-	if (port < NOZOMI_MAX_PORTS) {
-		dc->last_ier &= mask[port];
-		writew(dc->last_ier, dc->reg_ier);
-	} else {
-		dev_err(&dc->pdev->dev, "Called with wrong port?\n");
-	}
-}
-
-/*
- * Return 1 - send buffer to card and ack.
- * Return 0 - don't ack, don't send buffer to card.
- */
-static int send_data(enum port_type index, struct nozomi *dc)
-{
-	u32 size = 0;
-	struct port *port = &dc->port[index];
-	const u8 toggle = port->toggle_ul;
-	void __iomem *addr = port->ul_addr[toggle];
-	const u32 ul_size = port->ul_size[toggle];
-	struct tty_struct *tty = tty_port_tty_get(&port->port);
-
-	/* Get data from tty and place in buf for now */
-	size = kfifo_out(&port->fifo_ul, dc->send_buf,
-			   ul_size < SEND_BUF_MAX ? ul_size : SEND_BUF_MAX);
-
-	if (size == 0) {
-		DBG4("No more data to send, disable link:");
-		tty_kref_put(tty);
-		return 0;
-	}
-
-	/* DUMP(buf, size); */
-
-	/* Write length + data */
-	write_mem32(addr, (u32 *) &size, 4);
-	write_mem32(addr + 4, (u32 *) dc->send_buf, size);
-
-	if (tty)
-		tty_wakeup(tty);
-
-	tty_kref_put(tty);
-	return 1;
-}
-
-/* If all data has been read, return 1, else 0 */
-static int receive_data(enum port_type index, struct nozomi *dc)
-{
-	u8 buf[RECEIVE_BUF_MAX] = { 0 };
-	int size;
-	u32 offset = 4;
-	struct port *port = &dc->port[index];
-	void __iomem *addr = port->dl_addr[port->toggle_dl];
-	struct tty_struct *tty = tty_port_tty_get(&port->port);
-	int i, ret;
-
-	if (unlikely(!tty)) {
-		DBG1("tty not open for port: %d?", index);
-		return 1;
-	}
-
-	read_mem32((u32 *) &size, addr, 4);
-	/*  DBG1( "%d bytes port: %d", size, index); */
-
-	if (test_bit(TTY_THROTTLED, &tty->flags)) {
-		DBG1("No room in tty, don't read data, don't ack interrupt, "
-			"disable interrupt");
-
-		/* disable interrupt in downlink... */
-		disable_transmit_dl(index, dc);
-		ret = 0;
-		goto put;
-	}
-
-	if (unlikely(size == 0)) {
-		dev_err(&dc->pdev->dev, "size == 0?\n");
-		ret = 1;
-		goto put;
-	}
-
-	while (size > 0) {
-		read_mem32((u32 *) buf, addr + offset, RECEIVE_BUF_MAX);
-
-		if (size == 1) {
-			tty_insert_flip_char(tty, buf[0], TTY_NORMAL);
-			size = 0;
-		} else if (size < RECEIVE_BUF_MAX) {
-			size -= tty_insert_flip_string(tty, (char *) buf, size);
-		} else {
-			i = tty_insert_flip_string(tty, \
-						(char *) buf, RECEIVE_BUF_MAX);
-			size -= i;
-			offset += i;
-		}
-	}
-
-	set_bit(index, &dc->flip);
-	ret = 1;
-put:
-	tty_kref_put(tty);
-	return ret;
-}
-
-/* Debug for interrupts */
-#ifdef DEBUG
-static char *interrupt2str(u16 interrupt)
-{
-	static char buf[TMP_BUF_MAX];
-	char *p = buf;
-
-	interrupt & MDM_DL1 ? p += snprintf(p, TMP_BUF_MAX, "MDM_DL1 ") : NULL;
-	interrupt & MDM_DL2 ? p += snprintf(p, TMP_BUF_MAX - (p - buf),
-					"MDM_DL2 ") : NULL;
-
-	interrupt & MDM_UL1 ? p += snprintf(p, TMP_BUF_MAX - (p - buf),
-					"MDM_UL1 ") : NULL;
-	interrupt & MDM_UL2 ? p += snprintf(p, TMP_BUF_MAX - (p - buf),
-					"MDM_UL2 ") : NULL;
-
-	interrupt & DIAG_DL1 ? p += snprintf(p, TMP_BUF_MAX - (p - buf),
-					"DIAG_DL1 ") : NULL;
-	interrupt & DIAG_DL2 ? p += snprintf(p, TMP_BUF_MAX - (p - buf),
-					"DIAG_DL2 ") : NULL;
-
-	interrupt & DIAG_UL ? p += snprintf(p, TMP_BUF_MAX - (p - buf),
-					"DIAG_UL ") : NULL;
-
-	interrupt & APP1_DL ? p += snprintf(p, TMP_BUF_MAX - (p - buf),
-					"APP1_DL ") : NULL;
-	interrupt & APP2_DL ? p += snprintf(p, TMP_BUF_MAX - (p - buf),
-					"APP2_DL ") : NULL;
-
-	interrupt & APP1_UL ? p += snprintf(p, TMP_BUF_MAX - (p - buf),
-					"APP1_UL ") : NULL;
-	interrupt & APP2_UL ? p += snprintf(p, TMP_BUF_MAX - (p - buf),
-					"APP2_UL ") : NULL;
-
-	interrupt & CTRL_DL ? p += snprintf(p, TMP_BUF_MAX - (p - buf),
-					"CTRL_DL ") : NULL;
-	interrupt & CTRL_UL ? p += snprintf(p, TMP_BUF_MAX - (p - buf),
-					"CTRL_UL ") : NULL;
-
-	interrupt & RESET ? p += snprintf(p, TMP_BUF_MAX - (p - buf),
-					"RESET ") : NULL;
-
-	return buf;
-}
-#endif
-
-/*
- * Receive flow control
- * Return 1 - If ok, else 0
- */
-static int receive_flow_control(struct nozomi *dc)
-{
-	enum port_type port = PORT_MDM;
-	struct ctrl_dl ctrl_dl;
-	struct ctrl_dl old_ctrl;
-	u16 enable_ier = 0;
-
-	read_mem32((u32 *) &ctrl_dl, dc->port[PORT_CTRL].dl_addr[CH_A], 2);
-
-	switch (ctrl_dl.port) {
-	case CTRL_CMD:
-		DBG1("The Base Band sends this value as a response to a "
-			"request for IMSI detach sent over the control "
-			"channel uplink (see section 7.6.1).");
-		break;
-	case CTRL_MDM:
-		port = PORT_MDM;
-		enable_ier = MDM_DL;
-		break;
-	case CTRL_DIAG:
-		port = PORT_DIAG;
-		enable_ier = DIAG_DL;
-		break;
-	case CTRL_APP1:
-		port = PORT_APP1;
-		enable_ier = APP1_DL;
-		break;
-	case CTRL_APP2:
-		port = PORT_APP2;
-		enable_ier = APP2_DL;
-		if (dc->state == NOZOMI_STATE_ALLOCATED) {
-			/*
-			 * After card initialization the flow control
-			 * received for APP2 is always the last
-			 */
-			dc->state = NOZOMI_STATE_READY;
-			dev_info(&dc->pdev->dev, "Device READY!\n");
-		}
-		break;
-	default:
-		dev_err(&dc->pdev->dev,
-			"ERROR: flow control received for non-existing port\n");
-		return 0;
-	};
-
-	DBG1("0x%04X->0x%04X", *((u16 *)&dc->port[port].ctrl_dl),
-	   *((u16 *)&ctrl_dl));
-
-	old_ctrl = dc->port[port].ctrl_dl;
-	dc->port[port].ctrl_dl = ctrl_dl;
-
-	if (old_ctrl.CTS == 1 && ctrl_dl.CTS == 0) {
-		DBG1("Disable interrupt (0x%04X) on port: %d",
-			enable_ier, port);
-		disable_transmit_ul(port, dc);
-
-	} else if (old_ctrl.CTS == 0 && ctrl_dl.CTS == 1) {
-
-		if (kfifo_len(&dc->port[port].fifo_ul)) {
-			DBG1("Enable interrupt (0x%04X) on port: %d",
-				enable_ier, port);
-			DBG1("Data in buffer [%d], enable transmit! ",
-				kfifo_len(&dc->port[port].fifo_ul));
-			enable_transmit_ul(port, dc);
-		} else {
-			DBG1("No data in buffer...");
-		}
-	}
-
-	if (*(u16 *)&old_ctrl == *(u16 *)&ctrl_dl) {
-		DBG1(" No change in mctrl");
-		return 1;
-	}
-	/* Update statistics */
-	if (old_ctrl.CTS != ctrl_dl.CTS)
-		dc->port[port].tty_icount.cts++;
-	if (old_ctrl.DSR != ctrl_dl.DSR)
-		dc->port[port].tty_icount.dsr++;
-	if (old_ctrl.RI != ctrl_dl.RI)
-		dc->port[port].tty_icount.rng++;
-	if (old_ctrl.DCD != ctrl_dl.DCD)
-		dc->port[port].tty_icount.dcd++;
-
-	wake_up_interruptible(&dc->port[port].tty_wait);
-
-	DBG1("port: %d DCD(%d), CTS(%d), RI(%d), DSR(%d)",
-	   port,
-	   dc->port[port].tty_icount.dcd, dc->port[port].tty_icount.cts,
-	   dc->port[port].tty_icount.rng, dc->port[port].tty_icount.dsr);
-
-	return 1;
-}
-
-static enum ctrl_port_type port2ctrl(enum port_type port,
-					const struct nozomi *dc)
-{
-	switch (port) {
-	case PORT_MDM:
-		return CTRL_MDM;
-	case PORT_DIAG:
-		return CTRL_DIAG;
-	case PORT_APP1:
-		return CTRL_APP1;
-	case PORT_APP2:
-		return CTRL_APP2;
-	default:
-		dev_err(&dc->pdev->dev,
-			"ERROR: send flow control " \
-			"received for non-existing port\n");
-	};
-	return CTRL_ERROR;
-}
-
-/*
- * Send flow control, can only update one channel at a time
- * Return 0 - If we have updated all flow control
- * Return 1 - If we need to update more flow control, ack current enable more
- */
-static int send_flow_control(struct nozomi *dc)
-{
-	u32 i, more_flow_control_to_be_updated = 0;
-	u16 *ctrl;
-
-	for (i = PORT_MDM; i < MAX_PORT; i++) {
-		if (dc->port[i].update_flow_control) {
-			if (more_flow_control_to_be_updated) {
-				/* We have more flow control to be updated */
-				return 1;
-			}
-			dc->port[i].ctrl_ul.port = port2ctrl(i, dc);
-			ctrl = (u16 *)&dc->port[i].ctrl_ul;
-			write_mem32(dc->port[PORT_CTRL].ul_addr[0], \
-				(u32 *) ctrl, 2);
-			dc->port[i].update_flow_control = 0;
-			more_flow_control_to_be_updated = 1;
-		}
-	}
-	return 0;
-}
-
-/*
- * Handle downlink data, ports that are handled are modem and diagnostics
- * Return 1 - ok
- * Return 0 - toggle fields are out of sync
- */
-static int handle_data_dl(struct nozomi *dc, enum port_type port, u8 *toggle,
-			u16 read_iir, u16 mask1, u16 mask2)
-{
-	if (*toggle == 0 && read_iir & mask1) {
-		if (receive_data(port, dc)) {
-			writew(mask1, dc->reg_fcr);
-			*toggle = !(*toggle);
-		}
-
-		if (read_iir & mask2) {
-			if (receive_data(port, dc)) {
-				writew(mask2, dc->reg_fcr);
-				*toggle = !(*toggle);
-			}
-		}
-	} else if (*toggle == 1 && read_iir & mask2) {
-		if (receive_data(port, dc)) {
-			writew(mask2, dc->reg_fcr);
-			*toggle = !(*toggle);
-		}
-
-		if (read_iir & mask1) {
-			if (receive_data(port, dc)) {
-				writew(mask1, dc->reg_fcr);
-				*toggle = !(*toggle);
-			}
-		}
-	} else {
-		dev_err(&dc->pdev->dev, "port out of sync!, toggle:%d\n",
-			*toggle);
-		return 0;
-	}
-	return 1;
-}
-
-/*
- * Handle uplink data, this is currently for the modem port
- * Return 1 - ok
- * Return 0 - toggle field are out of sync
- */
-static int handle_data_ul(struct nozomi *dc, enum port_type port, u16 read_iir)
-{
-	u8 *toggle = &(dc->port[port].toggle_ul);
-
-	if (*toggle == 0 && read_iir & MDM_UL1) {
-		dc->last_ier &= ~MDM_UL;
-		writew(dc->last_ier, dc->reg_ier);
-		if (send_data(port, dc)) {
-			writew(MDM_UL1, dc->reg_fcr);
-			dc->last_ier = dc->last_ier | MDM_UL;
-			writew(dc->last_ier, dc->reg_ier);
-			*toggle = !*toggle;
-		}
-
-		if (read_iir & MDM_UL2) {
-			dc->last_ier &= ~MDM_UL;
-			writew(dc->last_ier, dc->reg_ier);
-			if (send_data(port, dc)) {
-				writew(MDM_UL2, dc->reg_fcr);
-				dc->last_ier = dc->last_ier | MDM_UL;
-				writew(dc->last_ier, dc->reg_ier);
-				*toggle = !*toggle;
-			}
-		}
-
-	} else if (*toggle == 1 && read_iir & MDM_UL2) {
-		dc->last_ier &= ~MDM_UL;
-		writew(dc->last_ier, dc->reg_ier);
-		if (send_data(port, dc)) {
-			writew(MDM_UL2, dc->reg_fcr);
-			dc->last_ier = dc->last_ier | MDM_UL;
-			writew(dc->last_ier, dc->reg_ier);
-			*toggle = !*toggle;
-		}
-
-		if (read_iir & MDM_UL1) {
-			dc->last_ier &= ~MDM_UL;
-			writew(dc->last_ier, dc->reg_ier);
-			if (send_data(port, dc)) {
-				writew(MDM_UL1, dc->reg_fcr);
-				dc->last_ier = dc->last_ier | MDM_UL;
-				writew(dc->last_ier, dc->reg_ier);
-				*toggle = !*toggle;
-			}
-		}
-	} else {
-		writew(read_iir & MDM_UL, dc->reg_fcr);
-		dev_err(&dc->pdev->dev, "port out of sync!\n");
-		return 0;
-	}
-	return 1;
-}
-
-static irqreturn_t interrupt_handler(int irq, void *dev_id)
-{
-	struct nozomi *dc = dev_id;
-	unsigned int a;
-	u16 read_iir;
-
-	if (!dc)
-		return IRQ_NONE;
-
-	spin_lock(&dc->spin_mutex);
-	read_iir = readw(dc->reg_iir);
-
-	/* Card removed */
-	if (read_iir == (u16)-1)
-		goto none;
-	/*
-	 * Just handle interrupt enabled in IER
-	 * (by masking with dc->last_ier)
-	 */
-	read_iir &= dc->last_ier;
-
-	if (read_iir == 0)
-		goto none;
-
-
-	DBG4("%s irq:0x%04X, prev:0x%04X", interrupt2str(read_iir), read_iir,
-		dc->last_ier);
-
-	if (read_iir & RESET) {
-		if (unlikely(!nozomi_read_config_table(dc))) {
-			dc->last_ier = 0x0;
-			writew(dc->last_ier, dc->reg_ier);
-			dev_err(&dc->pdev->dev, "Could not read status from "
-				"card, we should disable interface\n");
-		} else {
-			writew(RESET, dc->reg_fcr);
-		}
-		/* No more useful info if this was the reset interrupt. */
-		goto exit_handler;
-	}
-	if (read_iir & CTRL_UL) {
-		DBG1("CTRL_UL");
-		dc->last_ier &= ~CTRL_UL;
-		writew(dc->last_ier, dc->reg_ier);
-		if (send_flow_control(dc)) {
-			writew(CTRL_UL, dc->reg_fcr);
-			dc->last_ier = dc->last_ier | CTRL_UL;
-			writew(dc->last_ier, dc->reg_ier);
-		}
-	}
-	if (read_iir & CTRL_DL) {
-		receive_flow_control(dc);
-		writew(CTRL_DL, dc->reg_fcr);
-	}
-	if (read_iir & MDM_DL) {
-		if (!handle_data_dl(dc, PORT_MDM,
-				&(dc->port[PORT_MDM].toggle_dl), read_iir,
-				MDM_DL1, MDM_DL2)) {
-			dev_err(&dc->pdev->dev, "MDM_DL out of sync!\n");
-			goto exit_handler;
-		}
-	}
-	if (read_iir & MDM_UL) {
-		if (!handle_data_ul(dc, PORT_MDM, read_iir)) {
-			dev_err(&dc->pdev->dev, "MDM_UL out of sync!\n");
-			goto exit_handler;
-		}
-	}
-	if (read_iir & DIAG_DL) {
-		if (!handle_data_dl(dc, PORT_DIAG,
-				&(dc->port[PORT_DIAG].toggle_dl), read_iir,
-				DIAG_DL1, DIAG_DL2)) {
-			dev_err(&dc->pdev->dev, "DIAG_DL out of sync!\n");
-			goto exit_handler;
-		}
-	}
-	if (read_iir & DIAG_UL) {
-		dc->last_ier &= ~DIAG_UL;
-		writew(dc->last_ier, dc->reg_ier);
-		if (send_data(PORT_DIAG, dc)) {
-			writew(DIAG_UL, dc->reg_fcr);
-			dc->last_ier = dc->last_ier | DIAG_UL;
-			writew(dc->last_ier, dc->reg_ier);
-		}
-	}
-	if (read_iir & APP1_DL) {
-		if (receive_data(PORT_APP1, dc))
-			writew(APP1_DL, dc->reg_fcr);
-	}
-	if (read_iir & APP1_UL) {
-		dc->last_ier &= ~APP1_UL;
-		writew(dc->last_ier, dc->reg_ier);
-		if (send_data(PORT_APP1, dc)) {
-			writew(APP1_UL, dc->reg_fcr);
-			dc->last_ier = dc->last_ier | APP1_UL;
-			writew(dc->last_ier, dc->reg_ier);
-		}
-	}
-	if (read_iir & APP2_DL) {
-		if (receive_data(PORT_APP2, dc))
-			writew(APP2_DL, dc->reg_fcr);
-	}
-	if (read_iir & APP2_UL) {
-		dc->last_ier &= ~APP2_UL;
-		writew(dc->last_ier, dc->reg_ier);
-		if (send_data(PORT_APP2, dc)) {
-			writew(APP2_UL, dc->reg_fcr);
-			dc->last_ier = dc->last_ier | APP2_UL;
-			writew(dc->last_ier, dc->reg_ier);
-		}
-	}
-
-exit_handler:
-	spin_unlock(&dc->spin_mutex);
-	for (a = 0; a < NOZOMI_MAX_PORTS; a++) {
-		struct tty_struct *tty;
-		if (test_and_clear_bit(a, &dc->flip)) {
-			tty = tty_port_tty_get(&dc->port[a].port);
-			if (tty)
-				tty_flip_buffer_push(tty);
-			tty_kref_put(tty);
-		}
-	}
-	return IRQ_HANDLED;
-none:
-	spin_unlock(&dc->spin_mutex);
-	return IRQ_NONE;
-}
-
-static void nozomi_get_card_type(struct nozomi *dc)
-{
-	int i;
-	u32 size = 0;
-
-	for (i = 0; i < 6; i++)
-		size += pci_resource_len(dc->pdev, i);
-
-	/* Assume card type F32_8 if no match */
-	dc->card_type = size == 2048 ? F32_2 : F32_8;
-
-	dev_info(&dc->pdev->dev, "Card type is: %d\n", dc->card_type);
-}
-
-static void nozomi_setup_private_data(struct nozomi *dc)
-{
-	void __iomem *offset = dc->base_addr + dc->card_type / 2;
-	unsigned int i;
-
-	dc->reg_fcr = (void __iomem *)(offset + R_FCR);
-	dc->reg_iir = (void __iomem *)(offset + R_IIR);
-	dc->reg_ier = (void __iomem *)(offset + R_IER);
-	dc->last_ier = 0;
-	dc->flip = 0;
-
-	dc->port[PORT_MDM].token_dl = MDM_DL;
-	dc->port[PORT_DIAG].token_dl = DIAG_DL;
-	dc->port[PORT_APP1].token_dl = APP1_DL;
-	dc->port[PORT_APP2].token_dl = APP2_DL;
-
-	for (i = 0; i < MAX_PORT; i++)
-		init_waitqueue_head(&dc->port[i].tty_wait);
-}
-
-static ssize_t card_type_show(struct device *dev, struct device_attribute *attr,
-			  char *buf)
-{
-	const struct nozomi *dc = pci_get_drvdata(to_pci_dev(dev));
-
-	return sprintf(buf, "%d\n", dc->card_type);
-}
-static DEVICE_ATTR(card_type, S_IRUGO, card_type_show, NULL);
-
-static ssize_t open_ttys_show(struct device *dev, struct device_attribute *attr,
-			  char *buf)
-{
-	const struct nozomi *dc = pci_get_drvdata(to_pci_dev(dev));
-
-	return sprintf(buf, "%u\n", dc->open_ttys);
-}
-static DEVICE_ATTR(open_ttys, S_IRUGO, open_ttys_show, NULL);
-
-static void make_sysfs_files(struct nozomi *dc)
-{
-	if (device_create_file(&dc->pdev->dev, &dev_attr_card_type))
-		dev_err(&dc->pdev->dev,
-			"Could not create sysfs file for card_type\n");
-	if (device_create_file(&dc->pdev->dev, &dev_attr_open_ttys))
-		dev_err(&dc->pdev->dev,
-			"Could not create sysfs file for open_ttys\n");
-}
-
-static void remove_sysfs_files(struct nozomi *dc)
-{
-	device_remove_file(&dc->pdev->dev, &dev_attr_card_type);
-	device_remove_file(&dc->pdev->dev, &dev_attr_open_ttys);
-}
-
-/* Allocate memory for one device */
-static int __devinit nozomi_card_init(struct pci_dev *pdev,
-				      const struct pci_device_id *ent)
-{
-	resource_size_t start;
-	int ret;
-	struct nozomi *dc = NULL;
-	int ndev_idx;
-	int i;
-
-	dev_dbg(&pdev->dev, "Init, new card found\n");
-
-	for (ndev_idx = 0; ndev_idx < ARRAY_SIZE(ndevs); ndev_idx++)
-		if (!ndevs[ndev_idx])
-			break;
-
-	if (ndev_idx >= ARRAY_SIZE(ndevs)) {
-		dev_err(&pdev->dev, "no free tty range for this card left\n");
-		ret = -EIO;
-		goto err;
-	}
-
-	dc = kzalloc(sizeof(struct nozomi), GFP_KERNEL);
-	if (unlikely(!dc)) {
-		dev_err(&pdev->dev, "Could not allocate memory\n");
-		ret = -ENOMEM;
-		goto err_free;
-	}
-
-	dc->pdev = pdev;
-
-	ret = pci_enable_device(dc->pdev);
-	if (ret) {
-		dev_err(&pdev->dev, "Failed to enable PCI Device\n");
-		goto err_free;
-	}
-
-	ret = pci_request_regions(dc->pdev, NOZOMI_NAME);
-	if (ret) {
-		dev_err(&pdev->dev, "I/O address 0x%04x already in use\n",
-			(int) /* nozomi_private.io_addr */ 0);
-		goto err_disable_device;
-	}
-
-	start = pci_resource_start(dc->pdev, 0);
-	if (start == 0) {
-		dev_err(&pdev->dev, "No I/O address for card detected\n");
-		ret = -ENODEV;
-		goto err_rel_regs;
-	}
-
-	/* Find out what card type it is */
-	nozomi_get_card_type(dc);
-
-	dc->base_addr = ioremap_nocache(start, dc->card_type);
-	if (!dc->base_addr) {
-		dev_err(&pdev->dev, "Unable to map card MMIO\n");
-		ret = -ENODEV;
-		goto err_rel_regs;
-	}
-
-	dc->send_buf = kmalloc(SEND_BUF_MAX, GFP_KERNEL);
-	if (!dc->send_buf) {
-		dev_err(&pdev->dev, "Could not allocate send buffer?\n");
-		ret = -ENOMEM;
-		goto err_free_sbuf;
-	}
-
-	for (i = PORT_MDM; i < MAX_PORT; i++) {
-		if (kfifo_alloc(&dc->port[i].fifo_ul,
-		      FIFO_BUFFER_SIZE_UL, GFP_ATOMIC)) {
-			dev_err(&pdev->dev,
-					"Could not allocate kfifo buffer\n");
-			ret = -ENOMEM;
-			goto err_free_kfifo;
-		}
-	}
-
-	spin_lock_init(&dc->spin_mutex);
-
-	nozomi_setup_private_data(dc);
-
-	/* Disable all interrupts */
-	dc->last_ier = 0;
-	writew(dc->last_ier, dc->reg_ier);
-
-	ret = request_irq(pdev->irq, &interrupt_handler, IRQF_SHARED,
-			NOZOMI_NAME, dc);
-	if (unlikely(ret)) {
-		dev_err(&pdev->dev, "can't request irq %d\n", pdev->irq);
-		goto err_free_kfifo;
-	}
-
-	DBG1("base_addr: %p", dc->base_addr);
-
-	make_sysfs_files(dc);
-
-	dc->index_start = ndev_idx * MAX_PORT;
-	ndevs[ndev_idx] = dc;
-
-	pci_set_drvdata(pdev, dc);
-
-	/* Enable RESET interrupt */
-	dc->last_ier = RESET;
-	iowrite16(dc->last_ier, dc->reg_ier);
-
-	dc->state = NOZOMI_STATE_ENABLED;
-
-	for (i = 0; i < MAX_PORT; i++) {
-		struct device *tty_dev;
-		struct port *port = &dc->port[i];
-		port->dc = dc;
-		mutex_init(&port->tty_sem);
-		tty_port_init(&port->port);
-		port->port.ops = &noz_tty_port_ops;
-		tty_dev = tty_register_device(ntty_driver, dc->index_start + i,
-							&pdev->dev);
-
-		if (IS_ERR(tty_dev)) {
-			ret = PTR_ERR(tty_dev);
-			dev_err(&pdev->dev, "Could not allocate tty?\n");
-			goto err_free_tty;
-		}
-	}
-
-	return 0;
-
-err_free_tty:
-	for (i = dc->index_start; i < dc->index_start + MAX_PORT; ++i)
-		tty_unregister_device(ntty_driver, i);
-err_free_kfifo:
-	for (i = 0; i < MAX_PORT; i++)
-		kfifo_free(&dc->port[i].fifo_ul);
-err_free_sbuf:
-	kfree(dc->send_buf);
-	iounmap(dc->base_addr);
-err_rel_regs:
-	pci_release_regions(pdev);
-err_disable_device:
-	pci_disable_device(pdev);
-err_free:
-	kfree(dc);
-err:
-	return ret;
-}
-
-static void __devexit tty_exit(struct nozomi *dc)
-{
-	unsigned int i;
-
-	DBG1(" ");
-
-	flush_scheduled_work();
-
-	for (i = 0; i < MAX_PORT; ++i) {
-		struct tty_struct *tty = tty_port_tty_get(&dc->port[i].port);
-		if (tty && list_empty(&tty->hangup_work.entry))
-			tty_hangup(tty);
-		tty_kref_put(tty);
-	}
-	/* Racy below - surely should wait for scheduled work to be done or
-	   complete off a hangup method ? */
-	while (dc->open_ttys)
-		msleep(1);
-	for (i = dc->index_start; i < dc->index_start + MAX_PORT; ++i)
-		tty_unregister_device(ntty_driver, i);
-}
-
-/* Deallocate memory for one device */
-static void __devexit nozomi_card_exit(struct pci_dev *pdev)
-{
-	int i;
-	struct ctrl_ul ctrl;
-	struct nozomi *dc = pci_get_drvdata(pdev);
-
-	/* Disable all interrupts */
-	dc->last_ier = 0;
-	writew(dc->last_ier, dc->reg_ier);
-
-	tty_exit(dc);
-
-	/* Send 0x0001, command card to resend the reset token.  */
-	/* This is to get the reset when the module is reloaded. */
-	ctrl.port = 0x00;
-	ctrl.reserved = 0;
-	ctrl.RTS = 0;
-	ctrl.DTR = 1;
-	DBG1("sending flow control 0x%04X", *((u16 *)&ctrl));
-
-	/* Setup dc->reg addresses to we can use defines here */
-	write_mem32(dc->port[PORT_CTRL].ul_addr[0], (u32 *)&ctrl, 2);
-	writew(CTRL_UL, dc->reg_fcr);	/* push the token to the card. */
-
-	remove_sysfs_files(dc);
-
-	free_irq(pdev->irq, dc);
-
-	for (i = 0; i < MAX_PORT; i++)
-		kfifo_free(&dc->port[i].fifo_ul);
-
-	kfree(dc->send_buf);
-
-	iounmap(dc->base_addr);
-
-	pci_release_regions(pdev);
-
-	pci_disable_device(pdev);
-
-	ndevs[dc->index_start / MAX_PORT] = NULL;
-
-	kfree(dc);
-}
-
-static void set_rts(const struct tty_struct *tty, int rts)
-{
-	struct port *port = get_port_by_tty(tty);
-
-	port->ctrl_ul.RTS = rts;
-	port->update_flow_control = 1;
-	enable_transmit_ul(PORT_CTRL, get_dc_by_tty(tty));
-}
-
-static void set_dtr(const struct tty_struct *tty, int dtr)
-{
-	struct port *port = get_port_by_tty(tty);
-
-	DBG1("SETTING DTR index: %d, dtr: %d", tty->index, dtr);
-
-	port->ctrl_ul.DTR = dtr;
-	port->update_flow_control = 1;
-	enable_transmit_ul(PORT_CTRL, get_dc_by_tty(tty));
-}
-
-/*
- * ----------------------------------------------------------------------------
- * TTY code
- * ----------------------------------------------------------------------------
- */
-
-static int ntty_install(struct tty_driver *driver, struct tty_struct *tty)
-{
-	struct port *port = get_port_by_tty(tty);
-	struct nozomi *dc = get_dc_by_tty(tty);
-	int ret;
-	if (!port || !dc || dc->state != NOZOMI_STATE_READY)
-		return -ENODEV;
-	ret = tty_init_termios(tty);
-	if (ret == 0) {
-		tty_driver_kref_get(driver);
-		tty->count++;
-		tty->driver_data = port;
-		driver->ttys[tty->index] = tty;
-	}
-	return ret;
-}
-
-static void ntty_cleanup(struct tty_struct *tty)
-{
-	tty->driver_data = NULL;
-}
-
-static int ntty_activate(struct tty_port *tport, struct tty_struct *tty)
-{
-	struct port *port = container_of(tport, struct port, port);
-	struct nozomi *dc = port->dc;
-	unsigned long flags;
-
-	DBG1("open: %d", port->token_dl);
-	spin_lock_irqsave(&dc->spin_mutex, flags);
-	dc->last_ier = dc->last_ier | port->token_dl;
-	writew(dc->last_ier, dc->reg_ier);
-	dc->open_ttys++;
-	spin_unlock_irqrestore(&dc->spin_mutex, flags);
-	printk("noz: activated %d: %p\n", tty->index, tport);
-	return 0;
-}
-
-static int ntty_open(struct tty_struct *tty, struct file *filp)
-{
-	struct port *port = tty->driver_data;
-	return tty_port_open(&port->port, tty, filp);
-}
-
-static void ntty_shutdown(struct tty_port *tport)
-{
-	struct port *port = container_of(tport, struct port, port);
-	struct nozomi *dc = port->dc;
-	unsigned long flags;
-
-	DBG1("close: %d", port->token_dl);
-	spin_lock_irqsave(&dc->spin_mutex, flags);
-	dc->last_ier &= ~(port->token_dl);
-	writew(dc->last_ier, dc->reg_ier);
-	dc->open_ttys--;
-	spin_unlock_irqrestore(&dc->spin_mutex, flags);
-	printk("noz: shutdown %p\n", tport);
-}
-
-static void ntty_close(struct tty_struct *tty, struct file *filp)
-{
-	struct port *port = tty->driver_data;
-	if (port)
-		tty_port_close(&port->port, tty, filp);
-}
-
-static void ntty_hangup(struct tty_struct *tty)
-{
-	struct port *port = tty->driver_data;
-	tty_port_hangup(&port->port);
-}
-
-/*
- * called when the userspace process writes to the tty (/dev/noz*).
- * Data is inserted into a fifo, which is then read and transfered to the modem.
- */
-static int ntty_write(struct tty_struct *tty, const unsigned char *buffer,
-		      int count)
-{
-	int rval = -EINVAL;
-	struct nozomi *dc = get_dc_by_tty(tty);
-	struct port *port = tty->driver_data;
-	unsigned long flags;
-
-	/* DBG1( "WRITEx: %d, index = %d", count, index); */
-
-	if (!dc || !port)
-		return -ENODEV;
-
-	mutex_lock(&port->tty_sem);
-
-	if (unlikely(!port->port.count)) {
-		DBG1(" ");
-		goto exit;
-	}
-
-	rval = kfifo_in(&port->fifo_ul, (unsigned char *)buffer, count);
-
-	/* notify card */
-	if (unlikely(dc == NULL)) {
-		DBG1("No device context?");
-		goto exit;
-	}
-
-	spin_lock_irqsave(&dc->spin_mutex, flags);
-	/* CTS is only valid on the modem channel */
-	if (port == &(dc->port[PORT_MDM])) {
-		if (port->ctrl_dl.CTS) {
-			DBG4("Enable interrupt");
-			enable_transmit_ul(tty->index % MAX_PORT, dc);
-		} else {
-			dev_err(&dc->pdev->dev,
-				"CTS not active on modem port?\n");
-		}
-	} else {
-		enable_transmit_ul(tty->index % MAX_PORT, dc);
-	}
-	spin_unlock_irqrestore(&dc->spin_mutex, flags);
-
-exit:
-	mutex_unlock(&port->tty_sem);
-	return rval;
-}
-
-/*
- * Calculate how much is left in device
- * This method is called by the upper tty layer.
- *   #according to sources N_TTY.c it expects a value >= 0 and
- *    does not check for negative values.
- *
- * If the port is unplugged report lots of room and let the bits
- * dribble away so we don't block anything.
- */
-static int ntty_write_room(struct tty_struct *tty)
-{
-	struct port *port = tty->driver_data;
-	int room = 4096;
-	const struct nozomi *dc = get_dc_by_tty(tty);
-
-	if (dc) {
-		mutex_lock(&port->tty_sem);
-		if (port->port.count)
-			room = kfifo_avail(&port->fifo_ul);
-		mutex_unlock(&port->tty_sem);
-	}
-	return room;
-}
-
-/* Gets io control parameters */
-static int ntty_tiocmget(struct tty_struct *tty)
-{
-	const struct port *port = tty->driver_data;
-	const struct ctrl_dl *ctrl_dl = &port->ctrl_dl;
-	const struct ctrl_ul *ctrl_ul = &port->ctrl_ul;
-
-	/* Note: these could change under us but it is not clear this
-	   matters if so */
-	return	(ctrl_ul->RTS ? TIOCM_RTS : 0) |
-		(ctrl_ul->DTR ? TIOCM_DTR : 0) |
-		(ctrl_dl->DCD ? TIOCM_CAR : 0) |
-		(ctrl_dl->RI  ? TIOCM_RNG : 0) |
-		(ctrl_dl->DSR ? TIOCM_DSR : 0) |
-		(ctrl_dl->CTS ? TIOCM_CTS : 0);
-}
-
-/* Sets io controls parameters */
-static int ntty_tiocmset(struct tty_struct *tty,
-					unsigned int set, unsigned int clear)
-{
-	struct nozomi *dc = get_dc_by_tty(tty);
-	unsigned long flags;
-
-	spin_lock_irqsave(&dc->spin_mutex, flags);
-	if (set & TIOCM_RTS)
-		set_rts(tty, 1);
-	else if (clear & TIOCM_RTS)
-		set_rts(tty, 0);
-
-	if (set & TIOCM_DTR)
-		set_dtr(tty, 1);
-	else if (clear & TIOCM_DTR)
-		set_dtr(tty, 0);
-	spin_unlock_irqrestore(&dc->spin_mutex, flags);
-
-	return 0;
-}
-
-static int ntty_cflags_changed(struct port *port, unsigned long flags,
-		struct async_icount *cprev)
-{
-	const struct async_icount cnow = port->tty_icount;
-	int ret;
-
-	ret =	((flags & TIOCM_RNG) && (cnow.rng != cprev->rng)) ||
-		((flags & TIOCM_DSR) && (cnow.dsr != cprev->dsr)) ||
-		((flags & TIOCM_CD)  && (cnow.dcd != cprev->dcd)) ||
-		((flags & TIOCM_CTS) && (cnow.cts != cprev->cts));
-
-	*cprev = cnow;
-
-	return ret;
-}
-
-static int ntty_tiocgicount(struct tty_struct *tty,
-				struct serial_icounter_struct *icount)
-{
-	struct port *port = tty->driver_data;
-	const struct async_icount cnow = port->tty_icount;
-
-	icount->cts = cnow.cts;
-	icount->dsr = cnow.dsr;
-	icount->rng = cnow.rng;
-	icount->dcd = cnow.dcd;
-	icount->rx = cnow.rx;
-	icount->tx = cnow.tx;
-	icount->frame = cnow.frame;
-	icount->overrun = cnow.overrun;
-	icount->parity = cnow.parity;
-	icount->brk = cnow.brk;
-	icount->buf_overrun = cnow.buf_overrun;
-	return 0;
-}
-
-static int ntty_ioctl(struct tty_struct *tty,
-		      unsigned int cmd, unsigned long arg)
-{
-	struct port *port = tty->driver_data;
-	int rval = -ENOIOCTLCMD;
-
-	DBG1("******** IOCTL, cmd: %d", cmd);
-
-	switch (cmd) {
-	case TIOCMIWAIT: {
-		struct async_icount cprev = port->tty_icount;
-
-		rval = wait_event_interruptible(port->tty_wait,
-				ntty_cflags_changed(port, arg, &cprev));
-		break;
-	}
-	default:
-		DBG1("ERR: 0x%08X, %d", cmd, cmd);
-		break;
-	};
-
-	return rval;
-}
-
-/*
- * Called by the upper tty layer when tty buffers are ready
- * to receive data again after a call to throttle.
- */
-static void ntty_unthrottle(struct tty_struct *tty)
-{
-	struct nozomi *dc = get_dc_by_tty(tty);
-	unsigned long flags;
-
-	DBG1("UNTHROTTLE");
-	spin_lock_irqsave(&dc->spin_mutex, flags);
-	enable_transmit_dl(tty->index % MAX_PORT, dc);
-	set_rts(tty, 1);
-
-	spin_unlock_irqrestore(&dc->spin_mutex, flags);
-}
-
-/*
- * Called by the upper tty layer when the tty buffers are almost full.
- * The driver should stop send more data.
- */
-static void ntty_throttle(struct tty_struct *tty)
-{
-	struct nozomi *dc = get_dc_by_tty(tty);
-	unsigned long flags;
-
-	DBG1("THROTTLE");
-	spin_lock_irqsave(&dc->spin_mutex, flags);
-	set_rts(tty, 0);
-	spin_unlock_irqrestore(&dc->spin_mutex, flags);
-}
-
-/* Returns number of chars in buffer, called by tty layer */
-static s32 ntty_chars_in_buffer(struct tty_struct *tty)
-{
-	struct port *port = tty->driver_data;
-	struct nozomi *dc = get_dc_by_tty(tty);
-	s32 rval = 0;
-
-	if (unlikely(!dc || !port)) {
-		goto exit_in_buffer;
-	}
-
-	if (unlikely(!port->port.count)) {
-		dev_err(&dc->pdev->dev, "No tty open?\n");
-		goto exit_in_buffer;
-	}
-
-	rval = kfifo_len(&port->fifo_ul);
-
-exit_in_buffer:
-	return rval;
-}
-
-static const struct tty_port_operations noz_tty_port_ops = {
-	.activate = ntty_activate,
-	.shutdown = ntty_shutdown,
-};
-
-static const struct tty_operations tty_ops = {
-	.ioctl = ntty_ioctl,
-	.open = ntty_open,
-	.close = ntty_close,
-	.hangup = ntty_hangup,
-	.write = ntty_write,
-	.write_room = ntty_write_room,
-	.unthrottle = ntty_unthrottle,
-	.throttle = ntty_throttle,
-	.chars_in_buffer = ntty_chars_in_buffer,
-	.tiocmget = ntty_tiocmget,
-	.tiocmset = ntty_tiocmset,
-	.get_icount = ntty_tiocgicount,
-	.install = ntty_install,
-	.cleanup = ntty_cleanup,
-};
-
-/* Module initialization */
-static struct pci_driver nozomi_driver = {
-	.name = NOZOMI_NAME,
-	.id_table = nozomi_pci_tbl,
-	.probe = nozomi_card_init,
-	.remove = __devexit_p(nozomi_card_exit),
-};
-
-static __init int nozomi_init(void)
-{
-	int ret;
-
-	printk(KERN_INFO "Initializing %s\n", VERSION_STRING);
-
-	ntty_driver = alloc_tty_driver(NTTY_TTY_MAXMINORS);
-	if (!ntty_driver)
-		return -ENOMEM;
-
-	ntty_driver->owner = THIS_MODULE;
-	ntty_driver->driver_name = NOZOMI_NAME_TTY;
-	ntty_driver->name = "noz";
-	ntty_driver->major = 0;
-	ntty_driver->type = TTY_DRIVER_TYPE_SERIAL;
-	ntty_driver->subtype = SERIAL_TYPE_NORMAL;
-	ntty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
-	ntty_driver->init_termios = tty_std_termios;
-	ntty_driver->init_termios.c_cflag = B115200 | CS8 | CREAD | \
-						HUPCL | CLOCAL;
-	ntty_driver->init_termios.c_ispeed = 115200;
-	ntty_driver->init_termios.c_ospeed = 115200;
-	tty_set_operations(ntty_driver, &tty_ops);
-
-	ret = tty_register_driver(ntty_driver);
-	if (ret) {
-		printk(KERN_ERR "Nozomi: failed to register ntty driver\n");
-		goto free_tty;
-	}
-
-	ret = pci_register_driver(&nozomi_driver);
-	if (ret) {
-		printk(KERN_ERR "Nozomi: can't register pci driver\n");
-		goto unr_tty;
-	}
-
-	return 0;
-unr_tty:
-	tty_unregister_driver(ntty_driver);
-free_tty:
-	put_tty_driver(ntty_driver);
-	return ret;
-}
-
-static __exit void nozomi_exit(void)
-{
-	printk(KERN_INFO "Unloading %s\n", DRIVER_DESC);
-	pci_unregister_driver(&nozomi_driver);
-	tty_unregister_driver(ntty_driver);
-	put_tty_driver(ntty_driver);
-}
-
-module_init(nozomi_init);
-module_exit(nozomi_exit);
-
-module_param(debug, int, S_IRUGO | S_IWUSR);
-
-MODULE_LICENSE("Dual BSD/GPL");
-MODULE_DESCRIPTION(DRIVER_DESC);
diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c
deleted file mode 100644
index 3780da8ad12d..000000000000
--- a/drivers/char/rocket.c
+++ /dev/null
@@ -1,3199 +0,0 @@
-/*
- * RocketPort device driver for Linux
- *
- * Written by Theodore Ts'o, 1995, 1996, 1997, 1998, 1999, 2000.
- * 
- * Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2003 by Comtrol, Inc.
- * 
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- * 
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-/*
- * Kernel Synchronization:
- *
- * This driver has 2 kernel control paths - exception handlers (calls into the driver
- * from user mode) and the timer bottom half (tasklet).  This is a polled driver, interrupts
- * are not used.
- *
- * Critical data: 
- * -  rp_table[], accessed through passed "info" pointers, is a global (static) array of 
- *    serial port state information and the xmit_buf circular buffer.  Protected by 
- *    a per port spinlock.
- * -  xmit_flags[], an array of ints indexed by line (port) number, indicating that there
- *    is data to be transmitted.  Protected by atomic bit operations.
- * -  rp_num_ports, int indicating number of open ports, protected by atomic operations.
- * 
- * rp_write() and rp_write_char() functions use a per port semaphore to protect against
- * simultaneous access to the same port by more than one process.
- */
-
-/****** Defines ******/
-#define ROCKET_PARANOIA_CHECK
-#define ROCKET_DISABLE_SIMUSAGE
-
-#undef ROCKET_SOFT_FLOW
-#undef ROCKET_DEBUG_OPEN
-#undef ROCKET_DEBUG_INTR
-#undef ROCKET_DEBUG_WRITE
-#undef ROCKET_DEBUG_FLOW
-#undef ROCKET_DEBUG_THROTTLE
-#undef ROCKET_DEBUG_WAIT_UNTIL_SENT
-#undef ROCKET_DEBUG_RECEIVE
-#undef ROCKET_DEBUG_HANGUP
-#undef REV_PCI_ORDER
-#undef ROCKET_DEBUG_IO
-
-#define POLL_PERIOD HZ/100	/*  Polling period .01 seconds (10ms) */
-
-/****** Kernel includes ******/
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/major.h>
-#include <linux/kernel.h>
-#include <linux/signal.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/tty.h>
-#include <linux/tty_driver.h>
-#include <linux/tty_flip.h>
-#include <linux/serial.h>
-#include <linux/string.h>
-#include <linux/fcntl.h>
-#include <linux/ptrace.h>
-#include <linux/mutex.h>
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <linux/completion.h>
-#include <linux/wait.h>
-#include <linux/pci.h>
-#include <linux/uaccess.h>
-#include <asm/atomic.h>
-#include <asm/unaligned.h>
-#include <linux/bitops.h>
-#include <linux/spinlock.h>
-#include <linux/init.h>
-
-/****** RocketPort includes ******/
-
-#include "rocket_int.h"
-#include "rocket.h"
-
-#define ROCKET_VERSION "2.09"
-#define ROCKET_DATE "12-June-2003"
-
-/****** RocketPort Local Variables ******/
-
-static void rp_do_poll(unsigned long dummy);
-
-static struct tty_driver *rocket_driver;
-
-static struct rocket_version driver_version = {	
-	ROCKET_VERSION, ROCKET_DATE
-};
-
-static struct r_port *rp_table[MAX_RP_PORTS];	       /*  The main repository of serial port state information. */
-static unsigned int xmit_flags[NUM_BOARDS];	       /*  Bit significant, indicates port had data to transmit. */
-						       /*  eg.  Bit 0 indicates port 0 has xmit data, ...        */
-static atomic_t rp_num_ports_open;	               /*  Number of serial ports open                           */
-static DEFINE_TIMER(rocket_timer, rp_do_poll, 0, 0);
-
-static unsigned long board1;	                       /* ISA addresses, retrieved from rocketport.conf          */
-static unsigned long board2;
-static unsigned long board3;
-static unsigned long board4;
-static unsigned long controller;
-static int support_low_speed;
-static unsigned long modem1;
-static unsigned long modem2;
-static unsigned long modem3;
-static unsigned long modem4;
-static unsigned long pc104_1[8];
-static unsigned long pc104_2[8];
-static unsigned long pc104_3[8];
-static unsigned long pc104_4[8];
-static unsigned long *pc104[4] = { pc104_1, pc104_2, pc104_3, pc104_4 };
-
-static int rp_baud_base[NUM_BOARDS];	               /*  Board config info (Someday make a per-board structure)  */
-static unsigned long rcktpt_io_addr[NUM_BOARDS];
-static int rcktpt_type[NUM_BOARDS];
-static int is_PCI[NUM_BOARDS];
-static rocketModel_t rocketModel[NUM_BOARDS];
-static int max_board;
-static const struct tty_port_operations rocket_port_ops;
-
-/*
- * The following arrays define the interrupt bits corresponding to each AIOP.
- * These bits are different between the ISA and regular PCI boards and the
- * Universal PCI boards.
- */
-
-static Word_t aiop_intr_bits[AIOP_CTL_SIZE] = {
-	AIOP_INTR_BIT_0,
-	AIOP_INTR_BIT_1,
-	AIOP_INTR_BIT_2,
-	AIOP_INTR_BIT_3
-};
-
-static Word_t upci_aiop_intr_bits[AIOP_CTL_SIZE] = {
-	UPCI_AIOP_INTR_BIT_0,
-	UPCI_AIOP_INTR_BIT_1,
-	UPCI_AIOP_INTR_BIT_2,
-	UPCI_AIOP_INTR_BIT_3
-};
-
-static Byte_t RData[RDATASIZE] = {
-	0x00, 0x09, 0xf6, 0x82,
-	0x02, 0x09, 0x86, 0xfb,
-	0x04, 0x09, 0x00, 0x0a,
-	0x06, 0x09, 0x01, 0x0a,
-	0x08, 0x09, 0x8a, 0x13,
-	0x0a, 0x09, 0xc5, 0x11,
-	0x0c, 0x09, 0x86, 0x85,
-	0x0e, 0x09, 0x20, 0x0a,
-	0x10, 0x09, 0x21, 0x0a,
-	0x12, 0x09, 0x41, 0xff,
-	0x14, 0x09, 0x82, 0x00,
-	0x16, 0x09, 0x82, 0x7b,
-	0x18, 0x09, 0x8a, 0x7d,
-	0x1a, 0x09, 0x88, 0x81,
-	0x1c, 0x09, 0x86, 0x7a,
-	0x1e, 0x09, 0x84, 0x81,
-	0x20, 0x09, 0x82, 0x7c,
-	0x22, 0x09, 0x0a, 0x0a
-};
-
-static Byte_t RRegData[RREGDATASIZE] = {
-	0x00, 0x09, 0xf6, 0x82,	/* 00: Stop Rx processor */
-	0x08, 0x09, 0x8a, 0x13,	/* 04: Tx software flow control */
-	0x0a, 0x09, 0xc5, 0x11,	/* 08: XON char */
-	0x0c, 0x09, 0x86, 0x85,	/* 0c: XANY */
-	0x12, 0x09, 0x41, 0xff,	/* 10: Rx mask char */
-	0x14, 0x09, 0x82, 0x00,	/* 14: Compare/Ignore #0 */
-	0x16, 0x09, 0x82, 0x7b,	/* 18: Compare #1 */
-	0x18, 0x09, 0x8a, 0x7d,	/* 1c: Compare #2 */
-	0x1a, 0x09, 0x88, 0x81,	/* 20: Interrupt #1 */
-	0x1c, 0x09, 0x86, 0x7a,	/* 24: Ignore/Replace #1 */
-	0x1e, 0x09, 0x84, 0x81,	/* 28: Interrupt #2 */
-	0x20, 0x09, 0x82, 0x7c,	/* 2c: Ignore/Replace #2 */
-	0x22, 0x09, 0x0a, 0x0a	/* 30: Rx FIFO Enable */
-};
-
-static CONTROLLER_T sController[CTL_SIZE] = {
-	{-1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0, 0},
-	 {0, 0, 0, 0}, {-1, -1, -1, -1}, {0, 0, 0, 0}},
-	{-1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0, 0},
-	 {0, 0, 0, 0}, {-1, -1, -1, -1}, {0, 0, 0, 0}},
-	{-1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0, 0},
-	 {0, 0, 0, 0}, {-1, -1, -1, -1}, {0, 0, 0, 0}},
-	{-1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0, 0},
-	 {0, 0, 0, 0}, {-1, -1, -1, -1}, {0, 0, 0, 0}}
-};
-
-static Byte_t sBitMapClrTbl[8] = {
-	0xfe, 0xfd, 0xfb, 0xf7, 0xef, 0xdf, 0xbf, 0x7f
-};
-
-static Byte_t sBitMapSetTbl[8] = {
-	0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80
-};
-
-static int sClockPrescale = 0x14;
-
-/*
- *  Line number is the ttySIx number (x), the Minor number.  We 
- *  assign them sequentially, starting at zero.  The following 
- *  array keeps track of the line number assigned to a given board/aiop/channel.
- */
-static unsigned char lineNumbers[MAX_RP_PORTS];
-static unsigned long nextLineNumber;
-
-/*****  RocketPort Static Prototypes   *********/
-static int __init init_ISA(int i);
-static void rp_wait_until_sent(struct tty_struct *tty, int timeout);
-static void rp_flush_buffer(struct tty_struct *tty);
-static void rmSpeakerReset(CONTROLLER_T * CtlP, unsigned long model);
-static unsigned char GetLineNumber(int ctrl, int aiop, int ch);
-static unsigned char SetLineNumber(int ctrl, int aiop, int ch);
-static void rp_start(struct tty_struct *tty);
-static int sInitChan(CONTROLLER_T * CtlP, CHANNEL_T * ChP, int AiopNum,
-		     int ChanNum);
-static void sSetInterfaceMode(CHANNEL_T * ChP, Byte_t mode);
-static void sFlushRxFIFO(CHANNEL_T * ChP);
-static void sFlushTxFIFO(CHANNEL_T * ChP);
-static void sEnInterrupts(CHANNEL_T * ChP, Word_t Flags);
-static void sDisInterrupts(CHANNEL_T * ChP, Word_t Flags);
-static void sModemReset(CONTROLLER_T * CtlP, int chan, int on);
-static void sPCIModemReset(CONTROLLER_T * CtlP, int chan, int on);
-static int sWriteTxPrioByte(CHANNEL_T * ChP, Byte_t Data);
-static int sPCIInitController(CONTROLLER_T * CtlP, int CtlNum,
-			      ByteIO_t * AiopIOList, int AiopIOListSize,
-			      WordIO_t ConfigIO, int IRQNum, Byte_t Frequency,
-			      int PeriodicOnly, int altChanRingIndicator,
-			      int UPCIRingInd);
-static int sInitController(CONTROLLER_T * CtlP, int CtlNum, ByteIO_t MudbacIO,
-			   ByteIO_t * AiopIOList, int AiopIOListSize,
-			   int IRQNum, Byte_t Frequency, int PeriodicOnly);
-static int sReadAiopID(ByteIO_t io);
-static int sReadAiopNumChan(WordIO_t io);
-
-MODULE_AUTHOR("Theodore Ts'o");
-MODULE_DESCRIPTION("Comtrol RocketPort driver");
-module_param(board1, ulong, 0);
-MODULE_PARM_DESC(board1, "I/O port for (ISA) board #1");
-module_param(board2, ulong, 0);
-MODULE_PARM_DESC(board2, "I/O port for (ISA) board #2");
-module_param(board3, ulong, 0);
-MODULE_PARM_DESC(board3, "I/O port for (ISA) board #3");
-module_param(board4, ulong, 0);
-MODULE_PARM_DESC(board4, "I/O port for (ISA) board #4");
-module_param(controller, ulong, 0);
-MODULE_PARM_DESC(controller, "I/O port for (ISA) rocketport controller");
-module_param(support_low_speed, bool, 0);
-MODULE_PARM_DESC(support_low_speed, "1 means support 50 baud, 0 means support 460400 baud");
-module_param(modem1, ulong, 0);
-MODULE_PARM_DESC(modem1, "1 means (ISA) board #1 is a RocketModem");
-module_param(modem2, ulong, 0);
-MODULE_PARM_DESC(modem2, "1 means (ISA) board #2 is a RocketModem");
-module_param(modem3, ulong, 0);
-MODULE_PARM_DESC(modem3, "1 means (ISA) board #3 is a RocketModem");
-module_param(modem4, ulong, 0);
-MODULE_PARM_DESC(modem4, "1 means (ISA) board #4 is a RocketModem");
-module_param_array(pc104_1, ulong, NULL, 0);
-MODULE_PARM_DESC(pc104_1, "set interface types for ISA(PC104) board #1 (e.g. pc104_1=232,232,485,485,...");
-module_param_array(pc104_2, ulong, NULL, 0);
-MODULE_PARM_DESC(pc104_2, "set interface types for ISA(PC104) board #2 (e.g. pc104_2=232,232,485,485,...");
-module_param_array(pc104_3, ulong, NULL, 0);
-MODULE_PARM_DESC(pc104_3, "set interface types for ISA(PC104) board #3 (e.g. pc104_3=232,232,485,485,...");
-module_param_array(pc104_4, ulong, NULL, 0);
-MODULE_PARM_DESC(pc104_4, "set interface types for ISA(PC104) board #4 (e.g. pc104_4=232,232,485,485,...");
-
-static int rp_init(void);
-static void rp_cleanup_module(void);
-
-module_init(rp_init);
-module_exit(rp_cleanup_module);
-
-
-MODULE_LICENSE("Dual BSD/GPL");
-
-/*************************************************************************/
-/*                     Module code starts here                           */
-
-static inline int rocket_paranoia_check(struct r_port *info,
-					const char *routine)
-{
-#ifdef ROCKET_PARANOIA_CHECK
-	if (!info)
-		return 1;
-	if (info->magic != RPORT_MAGIC) {
-		printk(KERN_WARNING "Warning: bad magic number for rocketport "
-				"struct in %s\n", routine);
-		return 1;
-	}
-#endif
-	return 0;
-}
-
-
-/*  Serial port receive data function.  Called (from timer poll) when an AIOPIC signals 
- *  that receive data is present on a serial port.  Pulls data from FIFO, moves it into the 
- *  tty layer.  
- */
-static void rp_do_receive(struct r_port *info,
-			  struct tty_struct *tty,
-			  CHANNEL_t * cp, unsigned int ChanStatus)
-{
-	unsigned int CharNStat;
-	int ToRecv, wRecv, space;
-	unsigned char *cbuf;
-
-	ToRecv = sGetRxCnt(cp);
-#ifdef ROCKET_DEBUG_INTR
-	printk(KERN_INFO "rp_do_receive(%d)...\n", ToRecv);
-#endif
-	if (ToRecv == 0)
-		return;
-
-	/*
-	 * if status indicates there are errored characters in the
-	 * FIFO, then enter status mode (a word in FIFO holds
-	 * character and status).
-	 */
-	if (ChanStatus & (RXFOVERFL | RXBREAK | RXFRAME | RXPARITY)) {
-		if (!(ChanStatus & STATMODE)) {
-#ifdef ROCKET_DEBUG_RECEIVE
-			printk(KERN_INFO "Entering STATMODE...\n");
-#endif
-			ChanStatus |= STATMODE;
-			sEnRxStatusMode(cp);
-		}
-	}
-
-	/* 
-	 * if we previously entered status mode, then read down the
-	 * FIFO one word at a time, pulling apart the character and
-	 * the status.  Update error counters depending on status
-	 */
-	if (ChanStatus & STATMODE) {
-#ifdef ROCKET_DEBUG_RECEIVE
-		printk(KERN_INFO "Ignore %x, read %x...\n",
-			info->ignore_status_mask, info->read_status_mask);
-#endif
-		while (ToRecv) {
-			char flag;
-
-			CharNStat = sInW(sGetTxRxDataIO(cp));
-#ifdef ROCKET_DEBUG_RECEIVE
-			printk(KERN_INFO "%x...\n", CharNStat);
-#endif
-			if (CharNStat & STMBREAKH)
-				CharNStat &= ~(STMFRAMEH | STMPARITYH);
-			if (CharNStat & info->ignore_status_mask) {
-				ToRecv--;
-				continue;
-			}
-			CharNStat &= info->read_status_mask;
-			if (CharNStat & STMBREAKH)
-				flag = TTY_BREAK;
-			else if (CharNStat & STMPARITYH)
-				flag = TTY_PARITY;
-			else if (CharNStat & STMFRAMEH)
-				flag = TTY_FRAME;
-			else if (CharNStat & STMRCVROVRH)
-				flag = TTY_OVERRUN;
-			else
-				flag = TTY_NORMAL;
-			tty_insert_flip_char(tty, CharNStat & 0xff, flag);
-			ToRecv--;
-		}
-
-		/*
-		 * after we've emptied the FIFO in status mode, turn
-		 * status mode back off
-		 */
-		if (sGetRxCnt(cp) == 0) {
-#ifdef ROCKET_DEBUG_RECEIVE
-			printk(KERN_INFO "Status mode off.\n");
-#endif
-			sDisRxStatusMode(cp);
-		}
-	} else {
-		/*
-		 * we aren't in status mode, so read down the FIFO two
-		 * characters at time by doing repeated word IO
-		 * transfer.
-		 */
-		space = tty_prepare_flip_string(tty, &cbuf, ToRecv);
-		if (space < ToRecv) {
-#ifdef ROCKET_DEBUG_RECEIVE
-			printk(KERN_INFO "rp_do_receive:insufficient space ToRecv=%d space=%d\n", ToRecv, space);
-#endif
-			if (space <= 0)
-				return;
-			ToRecv = space;
-		}
-		wRecv = ToRecv >> 1;
-		if (wRecv)
-			sInStrW(sGetTxRxDataIO(cp), (unsigned short *) cbuf, wRecv);
-		if (ToRecv & 1)
-			cbuf[ToRecv - 1] = sInB(sGetTxRxDataIO(cp));
-	}
-	/*  Push the data up to the tty layer */
-	tty_flip_buffer_push(tty);
-}
-
-/*
- *  Serial port transmit data function.  Called from the timer polling loop as a 
- *  result of a bit set in xmit_flags[], indicating data (from the tty layer) is ready
- *  to be sent out the serial port.  Data is buffered in rp_table[line].xmit_buf, it is 
- *  moved to the port's xmit FIFO.  *info is critical data, protected by spinlocks.
- */
-static void rp_do_transmit(struct r_port *info)
-{
-	int c;
-	CHANNEL_t *cp = &info->channel;
-	struct tty_struct *tty;
-	unsigned long flags;
-
-#ifdef ROCKET_DEBUG_INTR
-	printk(KERN_DEBUG "%s\n", __func__);
-#endif
-	if (!info)
-		return;
-	tty = tty_port_tty_get(&info->port);
-
-	if (tty == NULL) {
-		printk(KERN_WARNING "rp: WARNING %s called with tty==NULL\n", __func__);
-		clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
-		return;
-	}
-
-	spin_lock_irqsave(&info->slock, flags);
-	info->xmit_fifo_room = TXFIFO_SIZE - sGetTxCnt(cp);
-
-	/*  Loop sending data to FIFO until done or FIFO full */
-	while (1) {
-		if (tty->stopped || tty->hw_stopped)
-			break;
-		c = min(info->xmit_fifo_room, info->xmit_cnt);
-		c = min(c, XMIT_BUF_SIZE - info->xmit_tail);
-		if (c <= 0 || info->xmit_fifo_room <= 0)
-			break;
-		sOutStrW(sGetTxRxDataIO(cp), (unsigned short *) (info->xmit_buf + info->xmit_tail), c / 2);
-		if (c & 1)
-			sOutB(sGetTxRxDataIO(cp), info->xmit_buf[info->xmit_tail + c - 1]);
-		info->xmit_tail += c;
-		info->xmit_tail &= XMIT_BUF_SIZE - 1;
-		info->xmit_cnt -= c;
-		info->xmit_fifo_room -= c;
-#ifdef ROCKET_DEBUG_INTR
-		printk(KERN_INFO "tx %d chars...\n", c);
-#endif
-	}
-
-	if (info->xmit_cnt == 0)
-		clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
-
-	if (info->xmit_cnt < WAKEUP_CHARS) {
-		tty_wakeup(tty);
-#ifdef ROCKETPORT_HAVE_POLL_WAIT
-		wake_up_interruptible(&tty->poll_wait);
-#endif
-	}
-
-	spin_unlock_irqrestore(&info->slock, flags);
-	tty_kref_put(tty);
-
-#ifdef ROCKET_DEBUG_INTR
-	printk(KERN_DEBUG "(%d,%d,%d,%d)...\n", info->xmit_cnt, info->xmit_head,
-	       info->xmit_tail, info->xmit_fifo_room);
-#endif
-}
-
-/*
- *  Called when a serial port signals it has read data in it's RX FIFO.
- *  It checks what interrupts are pending and services them, including
- *  receiving serial data.  
- */
-static void rp_handle_port(struct r_port *info)
-{
-	CHANNEL_t *cp;
-	struct tty_struct *tty;
-	unsigned int IntMask, ChanStatus;
-
-	if (!info)
-		return;
-
-	if ((info->port.flags & ASYNC_INITIALIZED) == 0) {
-		printk(KERN_WARNING "rp: WARNING: rp_handle_port called with "
-				"info->flags & NOT_INIT\n");
-		return;
-	}
-	tty = tty_port_tty_get(&info->port);
-	if (!tty) {
-		printk(KERN_WARNING "rp: WARNING: rp_handle_port called with "
-				"tty==NULL\n");
-		return;
-	}
-	cp = &info->channel;
-
-	IntMask = sGetChanIntID(cp) & info->intmask;
-#ifdef ROCKET_DEBUG_INTR
-	printk(KERN_INFO "rp_interrupt %02x...\n", IntMask);
-#endif
-	ChanStatus = sGetChanStatus(cp);
-	if (IntMask & RXF_TRIG) {	/* Rx FIFO trigger level */
-		rp_do_receive(info, tty, cp, ChanStatus);
-	}
-	if (IntMask & DELTA_CD) {	/* CD change  */
-#if (defined(ROCKET_DEBUG_OPEN) || defined(ROCKET_DEBUG_INTR) || defined(ROCKET_DEBUG_HANGUP))
-		printk(KERN_INFO "ttyR%d CD now %s...\n", info->line,
-		       (ChanStatus & CD_ACT) ? "on" : "off");
-#endif
-		if (!(ChanStatus & CD_ACT) && info->cd_status) {
-#ifdef ROCKET_DEBUG_HANGUP
-			printk(KERN_INFO "CD drop, calling hangup.\n");
-#endif
-			tty_hangup(tty);
-		}
-		info->cd_status = (ChanStatus & CD_ACT) ? 1 : 0;
-		wake_up_interruptible(&info->port.open_wait);
-	}
-#ifdef ROCKET_DEBUG_INTR
-	if (IntMask & DELTA_CTS) {	/* CTS change */
-		printk(KERN_INFO "CTS change...\n");
-	}
-	if (IntMask & DELTA_DSR) {	/* DSR change */
-		printk(KERN_INFO "DSR change...\n");
-	}
-#endif
-	tty_kref_put(tty);
-}
-
-/*
- *  The top level polling routine.  Repeats every 1/100 HZ (10ms).
- */
-static void rp_do_poll(unsigned long dummy)
-{
-	CONTROLLER_t *ctlp;
-	int ctrl, aiop, ch, line;
-	unsigned int xmitmask, i;
-	unsigned int CtlMask;
-	unsigned char AiopMask;
-	Word_t bit;
-
-	/*  Walk through all the boards (ctrl's) */
-	for (ctrl = 0; ctrl < max_board; ctrl++) {
-		if (rcktpt_io_addr[ctrl] <= 0)
-			continue;
-
-		/*  Get a ptr to the board's control struct */
-		ctlp = sCtlNumToCtlPtr(ctrl);
-
-		/*  Get the interrupt status from the board */
-#ifdef CONFIG_PCI
-		if (ctlp->BusType == isPCI)
-			CtlMask = sPCIGetControllerIntStatus(ctlp);
-		else
-#endif
-			CtlMask = sGetControllerIntStatus(ctlp);
-
-		/*  Check if any AIOP read bits are set */
-		for (aiop = 0; CtlMask; aiop++) {
-			bit = ctlp->AiopIntrBits[aiop];
-			if (CtlMask & bit) {
-				CtlMask &= ~bit;
-				AiopMask = sGetAiopIntStatus(ctlp, aiop);
-
-				/*  Check if any port read bits are set */
-				for (ch = 0; AiopMask;  AiopMask >>= 1, ch++) {
-					if (AiopMask & 1) {
-
-						/*  Get the line number (/dev/ttyRx number). */
-						/*  Read the data from the port. */
-						line = GetLineNumber(ctrl, aiop, ch);
-						rp_handle_port(rp_table[line]);
-					}
-				}
-			}
-		}
-
-		xmitmask = xmit_flags[ctrl];
-
-		/*
-		 *  xmit_flags contains bit-significant flags, indicating there is data
-		 *  to xmit on the port. Bit 0 is port 0 on this board, bit 1 is port 
-		 *  1, ... (32 total possible).  The variable i has the aiop and ch 
-		 *  numbers encoded in it (port 0-7 are aiop0, 8-15 are aiop1, etc).
-		 */
-		if (xmitmask) {
-			for (i = 0; i < rocketModel[ctrl].numPorts; i++) {
-				if (xmitmask & (1 << i)) {
-					aiop = (i & 0x18) >> 3;
-					ch = i & 0x07;
-					line = GetLineNumber(ctrl, aiop, ch);
-					rp_do_transmit(rp_table[line]);
-				}
-			}
-		}
-	}
-
-	/*
-	 * Reset the timer so we get called at the next clock tick (10ms).
-	 */
-	if (atomic_read(&rp_num_ports_open))
-		mod_timer(&rocket_timer, jiffies + POLL_PERIOD);
-}
-
-/*
- *  Initializes the r_port structure for a port, as well as enabling the port on 
- *  the board.  
- *  Inputs:  board, aiop, chan numbers
- */
-static void init_r_port(int board, int aiop, int chan, struct pci_dev *pci_dev)
-{
-	unsigned rocketMode;
-	struct r_port *info;
-	int line;
-	CONTROLLER_T *ctlp;
-
-	/*  Get the next available line number */
-	line = SetLineNumber(board, aiop, chan);
-
-	ctlp = sCtlNumToCtlPtr(board);
-
-	/*  Get a r_port struct for the port, fill it in and save it globally, indexed by line number */
-	info = kzalloc(sizeof (struct r_port), GFP_KERNEL);
-	if (!info) {
-		printk(KERN_ERR "Couldn't allocate info struct for line #%d\n",
-				line);
-		return;
-	}
-
-	info->magic = RPORT_MAGIC;
-	info->line = line;
-	info->ctlp = ctlp;
-	info->board = board;
-	info->aiop = aiop;
-	info->chan = chan;
-	tty_port_init(&info->port);
-	info->port.ops = &rocket_port_ops;
-	init_completion(&info->close_wait);
-	info->flags &= ~ROCKET_MODE_MASK;
-	switch (pc104[board][line]) {
-	case 422:
-		info->flags |= ROCKET_MODE_RS422;
-		break;
-	case 485:
-		info->flags |= ROCKET_MODE_RS485;
-		break;
-	case 232:
-	default:
-		info->flags |= ROCKET_MODE_RS232;
-		break;
-	}
-
-	info->intmask = RXF_TRIG | TXFIFO_MT | SRC_INT | DELTA_CD | DELTA_CTS | DELTA_DSR;
-	if (sInitChan(ctlp, &info->channel, aiop, chan) == 0) {
-		printk(KERN_ERR "RocketPort sInitChan(%d, %d, %d) failed!\n",
-				board, aiop, chan);
-		kfree(info);
-		return;
-	}
-
-	rocketMode = info->flags & ROCKET_MODE_MASK;
-
-	if ((info->flags & ROCKET_RTS_TOGGLE) || (rocketMode == ROCKET_MODE_RS485))
-		sEnRTSToggle(&info->channel);
-	else
-		sDisRTSToggle(&info->channel);
-
-	if (ctlp->boardType == ROCKET_TYPE_PC104) {
-		switch (rocketMode) {
-		case ROCKET_MODE_RS485:
-			sSetInterfaceMode(&info->channel, InterfaceModeRS485);
-			break;
-		case ROCKET_MODE_RS422:
-			sSetInterfaceMode(&info->channel, InterfaceModeRS422);
-			break;
-		case ROCKET_MODE_RS232:
-		default:
-			if (info->flags & ROCKET_RTS_TOGGLE)
-				sSetInterfaceMode(&info->channel, InterfaceModeRS232T);
-			else
-				sSetInterfaceMode(&info->channel, InterfaceModeRS232);
-			break;
-		}
-	}
-	spin_lock_init(&info->slock);
-	mutex_init(&info->write_mtx);
-	rp_table[line] = info;
-	tty_register_device(rocket_driver, line, pci_dev ? &pci_dev->dev :
-			NULL);
-}
-
-/*
- *  Configures a rocketport port according to its termio settings.  Called from 
- *  user mode into the driver (exception handler).  *info CD manipulation is spinlock protected.
- */
-static void configure_r_port(struct tty_struct *tty, struct r_port *info,
-			     struct ktermios *old_termios)
-{
-	unsigned cflag;
-	unsigned long flags;
-	unsigned rocketMode;
-	int bits, baud, divisor;
-	CHANNEL_t *cp;
-	struct ktermios *t = tty->termios;
-
-	cp = &info->channel;
-	cflag = t->c_cflag;
-
-	/* Byte size and parity */
-	if ((cflag & CSIZE) == CS8) {
-		sSetData8(cp);
-		bits = 10;
-	} else {
-		sSetData7(cp);
-		bits = 9;
-	}
-	if (cflag & CSTOPB) {
-		sSetStop2(cp);
-		bits++;
-	} else {
-		sSetStop1(cp);
-	}
-
-	if (cflag & PARENB) {
-		sEnParity(cp);
-		bits++;
-		if (cflag & PARODD) {
-			sSetOddParity(cp);
-		} else {
-			sSetEvenParity(cp);
-		}
-	} else {
-		sDisParity(cp);
-	}
-
-	/* baud rate */
-	baud = tty_get_baud_rate(tty);
-	if (!baud)
-		baud = 9600;
-	divisor = ((rp_baud_base[info->board] + (baud >> 1)) / baud) - 1;
-	if ((divisor >= 8192 || divisor < 0) && old_termios) {
-		baud = tty_termios_baud_rate(old_termios);
-		if (!baud)
-			baud = 9600;
-		divisor = (rp_baud_base[info->board] / baud) - 1;
-	}
-	if (divisor >= 8192 || divisor < 0) {
-		baud = 9600;
-		divisor = (rp_baud_base[info->board] / baud) - 1;
-	}
-	info->cps = baud / bits;
-	sSetBaud(cp, divisor);
-
-	/* FIXME: Should really back compute a baud rate from the divisor */
-	tty_encode_baud_rate(tty, baud, baud);
-
-	if (cflag & CRTSCTS) {
-		info->intmask |= DELTA_CTS;
-		sEnCTSFlowCtl(cp);
-	} else {
-		info->intmask &= ~DELTA_CTS;
-		sDisCTSFlowCtl(cp);
-	}
-	if (cflag & CLOCAL) {
-		info->intmask &= ~DELTA_CD;
-	} else {
-		spin_lock_irqsave(&info->slock, flags);
-		if (sGetChanStatus(cp) & CD_ACT)
-			info->cd_status = 1;
-		else
-			info->cd_status = 0;
-		info->intmask |= DELTA_CD;
-		spin_unlock_irqrestore(&info->slock, flags);
-	}
-
-	/*
-	 * Handle software flow control in the board
-	 */
-#ifdef ROCKET_SOFT_FLOW
-	if (I_IXON(tty)) {
-		sEnTxSoftFlowCtl(cp);
-		if (I_IXANY(tty)) {
-			sEnIXANY(cp);
-		} else {
-			sDisIXANY(cp);
-		}
-		sSetTxXONChar(cp, START_CHAR(tty));
-		sSetTxXOFFChar(cp, STOP_CHAR(tty));
-	} else {
-		sDisTxSoftFlowCtl(cp);
-		sDisIXANY(cp);
-		sClrTxXOFF(cp);
-	}
-#endif
-
-	/*
-	 * Set up ignore/read mask words
-	 */
-	info->read_status_mask = STMRCVROVRH | 0xFF;
-	if (I_INPCK(tty))
-		info->read_status_mask |= STMFRAMEH | STMPARITYH;
-	if (I_BRKINT(tty) || I_PARMRK(tty))
-		info->read_status_mask |= STMBREAKH;
-
-	/*
-	 * Characters to ignore
-	 */
-	info->ignore_status_mask = 0;
-	if (I_IGNPAR(tty))
-		info->ignore_status_mask |= STMFRAMEH | STMPARITYH;
-	if (I_IGNBRK(tty)) {
-		info->ignore_status_mask |= STMBREAKH;
-		/*
-		 * If we're ignoring parity and break indicators,
-		 * ignore overruns too.  (For real raw support).
-		 */
-		if (I_IGNPAR(tty))
-			info->ignore_status_mask |= STMRCVROVRH;
-	}
-
-	rocketMode = info->flags & ROCKET_MODE_MASK;
-
-	if ((info->flags & ROCKET_RTS_TOGGLE)
-	    || (rocketMode == ROCKET_MODE_RS485))
-		sEnRTSToggle(cp);
-	else
-		sDisRTSToggle(cp);
-
-	sSetRTS(&info->channel);
-
-	if (cp->CtlP->boardType == ROCKET_TYPE_PC104) {
-		switch (rocketMode) {
-		case ROCKET_MODE_RS485:
-			sSetInterfaceMode(cp, InterfaceModeRS485);
-			break;
-		case ROCKET_MODE_RS422:
-			sSetInterfaceMode(cp, InterfaceModeRS422);
-			break;
-		case ROCKET_MODE_RS232:
-		default:
-			if (info->flags & ROCKET_RTS_TOGGLE)
-				sSetInterfaceMode(cp, InterfaceModeRS232T);
-			else
-				sSetInterfaceMode(cp, InterfaceModeRS232);
-			break;
-		}
-	}
-}
-
-static int carrier_raised(struct tty_port *port)
-{
-	struct r_port *info = container_of(port, struct r_port, port);
-	return (sGetChanStatusLo(&info->channel) & CD_ACT) ? 1 : 0;
-}
-
-static void dtr_rts(struct tty_port *port, int on)
-{
-	struct r_port *info = container_of(port, struct r_port, port);
-	if (on) {
-		sSetDTR(&info->channel);
-		sSetRTS(&info->channel);
-	} else {
-		sClrDTR(&info->channel);
-		sClrRTS(&info->channel);
-	}
-}
-
-/*
- *  Exception handler that opens a serial port.  Creates xmit_buf storage, fills in 
- *  port's r_port struct.  Initializes the port hardware.  
- */
-static int rp_open(struct tty_struct *tty, struct file *filp)
-{
-	struct r_port *info;
-	struct tty_port *port;
-	int line = 0, retval;
-	CHANNEL_t *cp;
-	unsigned long page;
-
-	line = tty->index;
-	if (line < 0 || line >= MAX_RP_PORTS || ((info = rp_table[line]) == NULL))
-		return -ENXIO;
-	port = &info->port;
-	
-	page = __get_free_page(GFP_KERNEL);
-	if (!page)
-		return -ENOMEM;
-
-	if (port->flags & ASYNC_CLOSING) {
-		retval = wait_for_completion_interruptible(&info->close_wait);
-		free_page(page);
-		if (retval)
-			return retval;
-		return ((port->flags & ASYNC_HUP_NOTIFY) ? -EAGAIN : -ERESTARTSYS);
-	}
-
-	/*
-	 * We must not sleep from here until the port is marked fully in use.
-	 */
-	if (info->xmit_buf)
-		free_page(page);
-	else
-		info->xmit_buf = (unsigned char *) page;
-
-	tty->driver_data = info;
-	tty_port_tty_set(port, tty);
-
-	if (port->count++ == 0) {
-		atomic_inc(&rp_num_ports_open);
-
-#ifdef ROCKET_DEBUG_OPEN
-		printk(KERN_INFO "rocket mod++ = %d...\n",
-				atomic_read(&rp_num_ports_open));
-#endif
-	}
-#ifdef ROCKET_DEBUG_OPEN
-	printk(KERN_INFO "rp_open ttyR%d, count=%d\n", info->line, info->port.count);
-#endif
-
-	/*
-	 * Info->count is now 1; so it's safe to sleep now.
-	 */
-	if (!test_bit(ASYNCB_INITIALIZED, &port->flags)) {
-		cp = &info->channel;
-		sSetRxTrigger(cp, TRIG_1);
-		if (sGetChanStatus(cp) & CD_ACT)
-			info->cd_status = 1;
-		else
-			info->cd_status = 0;
-		sDisRxStatusMode(cp);
-		sFlushRxFIFO(cp);
-		sFlushTxFIFO(cp);
-
-		sEnInterrupts(cp, (TXINT_EN | MCINT_EN | RXINT_EN | SRCINT_EN | CHANINT_EN));
-		sSetRxTrigger(cp, TRIG_1);
-
-		sGetChanStatus(cp);
-		sDisRxStatusMode(cp);
-		sClrTxXOFF(cp);
-
-		sDisCTSFlowCtl(cp);
-		sDisTxSoftFlowCtl(cp);
-
-		sEnRxFIFO(cp);
-		sEnTransmit(cp);
-
-		set_bit(ASYNCB_INITIALIZED, &info->port.flags);
-
-		/*
-		 * Set up the tty->alt_speed kludge
-		 */
-		if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_HI)
-			tty->alt_speed = 57600;
-		if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_VHI)
-			tty->alt_speed = 115200;
-		if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_SHI)
-			tty->alt_speed = 230400;
-		if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_WARP)
-			tty->alt_speed = 460800;
-
-		configure_r_port(tty, info, NULL);
-		if (tty->termios->c_cflag & CBAUD) {
-			sSetDTR(cp);
-			sSetRTS(cp);
-		}
-	}
-	/*  Starts (or resets) the maint polling loop */
-	mod_timer(&rocket_timer, jiffies + POLL_PERIOD);
-
-	retval = tty_port_block_til_ready(port, tty, filp);
-	if (retval) {
-#ifdef ROCKET_DEBUG_OPEN
-		printk(KERN_INFO "rp_open returning after block_til_ready with %d\n", retval);
-#endif
-		return retval;
-	}
-	return 0;
-}
-
-/*
- *  Exception handler that closes a serial port. info->port.count is considered critical.
- */
-static void rp_close(struct tty_struct *tty, struct file *filp)
-{
-	struct r_port *info = tty->driver_data;
-	struct tty_port *port = &info->port;
-	int timeout;
-	CHANNEL_t *cp;
-	
-	if (rocket_paranoia_check(info, "rp_close"))
-		return;
-
-#ifdef ROCKET_DEBUG_OPEN
-	printk(KERN_INFO "rp_close ttyR%d, count = %d\n", info->line, info->port.count);
-#endif
-
-	if (tty_port_close_start(port, tty, filp) == 0)
-		return;
-
-	mutex_lock(&port->mutex);
-	cp = &info->channel;
-	/*
-	 * Before we drop DTR, make sure the UART transmitter
-	 * has completely drained; this is especially
-	 * important if there is a transmit FIFO!
-	 */
-	timeout = (sGetTxCnt(cp) + 1) * HZ / info->cps;
-	if (timeout == 0)
-		timeout = 1;
-	rp_wait_until_sent(tty, timeout);
-	clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
-
-	sDisTransmit(cp);
-	sDisInterrupts(cp, (TXINT_EN | MCINT_EN | RXINT_EN | SRCINT_EN | CHANINT_EN));
-	sDisCTSFlowCtl(cp);
-	sDisTxSoftFlowCtl(cp);
-	sClrTxXOFF(cp);
-	sFlushRxFIFO(cp);
-	sFlushTxFIFO(cp);
-	sClrRTS(cp);
-	if (C_HUPCL(tty))
-		sClrDTR(cp);
-
-	rp_flush_buffer(tty);
-		
-	tty_ldisc_flush(tty);
-
-	clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
-
-	/* We can't yet use tty_port_close_end as the buffer handling in this
-	   driver is a bit different to the usual */
-
-	if (port->blocked_open) {
-		if (port->close_delay) {
-			msleep_interruptible(jiffies_to_msecs(port->close_delay));
-		}
-		wake_up_interruptible(&port->open_wait);
-	} else {
-		if (info->xmit_buf) {
-			free_page((unsigned long) info->xmit_buf);
-			info->xmit_buf = NULL;
-		}
-	}
-	spin_lock_irq(&port->lock);
-	info->port.flags &= ~(ASYNC_INITIALIZED | ASYNC_CLOSING | ASYNC_NORMAL_ACTIVE);
-	tty->closing = 0;
-	spin_unlock_irq(&port->lock);
-	mutex_unlock(&port->mutex);
-	tty_port_tty_set(port, NULL);
-
-	wake_up_interruptible(&port->close_wait);
-	complete_all(&info->close_wait);
-	atomic_dec(&rp_num_ports_open);
-
-#ifdef ROCKET_DEBUG_OPEN
-	printk(KERN_INFO "rocket mod-- = %d...\n",
-			atomic_read(&rp_num_ports_open));
-	printk(KERN_INFO "rp_close ttyR%d complete shutdown\n", info->line);
-#endif
-
-}
-
-static void rp_set_termios(struct tty_struct *tty,
-			   struct ktermios *old_termios)
-{
-	struct r_port *info = tty->driver_data;
-	CHANNEL_t *cp;
-	unsigned cflag;
-
-	if (rocket_paranoia_check(info, "rp_set_termios"))
-		return;
-
-	cflag = tty->termios->c_cflag;
-
-	/*
-	 * This driver doesn't support CS5 or CS6
-	 */
-	if (((cflag & CSIZE) == CS5) || ((cflag & CSIZE) == CS6))
-		tty->termios->c_cflag =
-		    ((cflag & ~CSIZE) | (old_termios->c_cflag & CSIZE));
-	/* Or CMSPAR */
-	tty->termios->c_cflag &= ~CMSPAR;
-
-	configure_r_port(tty, info, old_termios);
-
-	cp = &info->channel;
-
-	/* Handle transition to B0 status */
-	if ((old_termios->c_cflag & CBAUD) && !(tty->termios->c_cflag & CBAUD)) {
-		sClrDTR(cp);
-		sClrRTS(cp);
-	}
-
-	/* Handle transition away from B0 status */
-	if (!(old_termios->c_cflag & CBAUD) && (tty->termios->c_cflag & CBAUD)) {
-		if (!tty->hw_stopped || !(tty->termios->c_cflag & CRTSCTS))
-			sSetRTS(cp);
-		sSetDTR(cp);
-	}
-
-	if ((old_termios->c_cflag & CRTSCTS) && !(tty->termios->c_cflag & CRTSCTS)) {
-		tty->hw_stopped = 0;
-		rp_start(tty);
-	}
-}
-
-static int rp_break(struct tty_struct *tty, int break_state)
-{
-	struct r_port *info = tty->driver_data;
-	unsigned long flags;
-
-	if (rocket_paranoia_check(info, "rp_break"))
-		return -EINVAL;
-
-	spin_lock_irqsave(&info->slock, flags);
-	if (break_state == -1)
-		sSendBreak(&info->channel);
-	else
-		sClrBreak(&info->channel);
-	spin_unlock_irqrestore(&info->slock, flags);
-	return 0;
-}
-
-/*
- * sGetChanRI used to be a macro in rocket_int.h. When the functionality for
- * the UPCI boards was added, it was decided to make this a function because
- * the macro was getting too complicated. All cases except the first one
- * (UPCIRingInd) are taken directly from the original macro.
- */
-static int sGetChanRI(CHANNEL_T * ChP)
-{
-	CONTROLLER_t *CtlP = ChP->CtlP;
-	int ChanNum = ChP->ChanNum;
-	int RingInd = 0;
-
-	if (CtlP->UPCIRingInd)
-		RingInd = !(sInB(CtlP->UPCIRingInd) & sBitMapSetTbl[ChanNum]);
-	else if (CtlP->AltChanRingIndicator)
-		RingInd = sInB((ByteIO_t) (ChP->ChanStat + 8)) & DSR_ACT;
-	else if (CtlP->boardType == ROCKET_TYPE_PC104)
-		RingInd = !(sInB(CtlP->AiopIO[3]) & sBitMapSetTbl[ChanNum]);
-
-	return RingInd;
-}
-
-/********************************************************************************************/
-/*  Here are the routines used by rp_ioctl.  These are all called from exception handlers.  */
-
-/*
- *  Returns the state of the serial modem control lines.  These next 2 functions 
- *  are the way kernel versions > 2.5 handle modem control lines rather than IOCTLs.
- */
-static int rp_tiocmget(struct tty_struct *tty)
-{
-	struct r_port *info = tty->driver_data;
-	unsigned int control, result, ChanStatus;
-
-	ChanStatus = sGetChanStatusLo(&info->channel);
-	control = info->channel.TxControl[3];
-	result = ((control & SET_RTS) ? TIOCM_RTS : 0) | 
-		((control & SET_DTR) ?  TIOCM_DTR : 0) |
-		((ChanStatus & CD_ACT) ? TIOCM_CAR : 0) |
-		(sGetChanRI(&info->channel) ? TIOCM_RNG : 0) |
-		((ChanStatus & DSR_ACT) ? TIOCM_DSR : 0) |
-		((ChanStatus & CTS_ACT) ? TIOCM_CTS : 0);
-
-	return result;
-}
-
-/* 
- *  Sets the modem control lines
- */
-static int rp_tiocmset(struct tty_struct *tty,
-				unsigned int set, unsigned int clear)
-{
-	struct r_port *info = tty->driver_data;
-
-	if (set & TIOCM_RTS)
-		info->channel.TxControl[3] |= SET_RTS;
-	if (set & TIOCM_DTR)
-		info->channel.TxControl[3] |= SET_DTR;
-	if (clear & TIOCM_RTS)
-		info->channel.TxControl[3] &= ~SET_RTS;
-	if (clear & TIOCM_DTR)
-		info->channel.TxControl[3] &= ~SET_DTR;
-
-	out32(info->channel.IndexAddr, info->channel.TxControl);
-	return 0;
-}
-
-static int get_config(struct r_port *info, struct rocket_config __user *retinfo)
-{
-	struct rocket_config tmp;
-
-	if (!retinfo)
-		return -EFAULT;
-	memset(&tmp, 0, sizeof (tmp));
-	mutex_lock(&info->port.mutex);
-	tmp.line = info->line;
-	tmp.flags = info->flags;
-	tmp.close_delay = info->port.close_delay;
-	tmp.closing_wait = info->port.closing_wait;
-	tmp.port = rcktpt_io_addr[(info->line >> 5) & 3];
-	mutex_unlock(&info->port.mutex);
-
-	if (copy_to_user(retinfo, &tmp, sizeof (*retinfo)))
-		return -EFAULT;
-	return 0;
-}
-
-static int set_config(struct tty_struct *tty, struct r_port *info,
-					struct rocket_config __user *new_info)
-{
-	struct rocket_config new_serial;
-
-	if (copy_from_user(&new_serial, new_info, sizeof (new_serial)))
-		return -EFAULT;
-
-	mutex_lock(&info->port.mutex);
-	if (!capable(CAP_SYS_ADMIN))
-	{
-		if ((new_serial.flags & ~ROCKET_USR_MASK) != (info->flags & ~ROCKET_USR_MASK)) {
-			mutex_unlock(&info->port.mutex);
-			return -EPERM;
-		}
-		info->flags = ((info->flags & ~ROCKET_USR_MASK) | (new_serial.flags & ROCKET_USR_MASK));
-		configure_r_port(tty, info, NULL);
-		mutex_unlock(&info->port.mutex);
-		return 0;
-	}
-
-	info->flags = ((info->flags & ~ROCKET_FLAGS) | (new_serial.flags & ROCKET_FLAGS));
-	info->port.close_delay = new_serial.close_delay;
-	info->port.closing_wait = new_serial.closing_wait;
-
-	if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_HI)
-		tty->alt_speed = 57600;
-	if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_VHI)
-		tty->alt_speed = 115200;
-	if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_SHI)
-		tty->alt_speed = 230400;
-	if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_WARP)
-		tty->alt_speed = 460800;
-	mutex_unlock(&info->port.mutex);
-
-	configure_r_port(tty, info, NULL);
-	return 0;
-}
-
-/*
- *  This function fills in a rocket_ports struct with information
- *  about what boards/ports are in the system.  This info is passed
- *  to user space.  See setrocket.c where the info is used to create
- *  the /dev/ttyRx ports.
- */
-static int get_ports(struct r_port *info, struct rocket_ports __user *retports)
-{
-	struct rocket_ports tmp;
-	int board;
-
-	if (!retports)
-		return -EFAULT;
-	memset(&tmp, 0, sizeof (tmp));
-	tmp.tty_major = rocket_driver->major;
-
-	for (board = 0; board < 4; board++) {
-		tmp.rocketModel[board].model = rocketModel[board].model;
-		strcpy(tmp.rocketModel[board].modelString, rocketModel[board].modelString);
-		tmp.rocketModel[board].numPorts = rocketModel[board].numPorts;
-		tmp.rocketModel[board].loadrm2 = rocketModel[board].loadrm2;
-		tmp.rocketModel[board].startingPortNumber = rocketModel[board].startingPortNumber;
-	}
-	if (copy_to_user(retports, &tmp, sizeof (*retports)))
-		return -EFAULT;
-	return 0;
-}
-
-static int reset_rm2(struct r_port *info, void __user *arg)
-{
-	int reset;
-
-	if (!capable(CAP_SYS_ADMIN))
-		return -EPERM;
-
-	if (copy_from_user(&reset, arg, sizeof (int)))
-		return -EFAULT;
-	if (reset)
-		reset = 1;
-
-	if (rcktpt_type[info->board] != ROCKET_TYPE_MODEMII &&
-            rcktpt_type[info->board] != ROCKET_TYPE_MODEMIII)
-		return -EINVAL;
-
-	if (info->ctlp->BusType == isISA)
-		sModemReset(info->ctlp, info->chan, reset);
-	else
-		sPCIModemReset(info->ctlp, info->chan, reset);
-
-	return 0;
-}
-
-static int get_version(struct r_port *info, struct rocket_version __user *retvers)
-{
-	if (copy_to_user(retvers, &driver_version, sizeof (*retvers)))
-		return -EFAULT;
-	return 0;
-}
-
-/*  IOCTL call handler into the driver */
-static int rp_ioctl(struct tty_struct *tty,
-		    unsigned int cmd, unsigned long arg)
-{
-	struct r_port *info = tty->driver_data;
-	void __user *argp = (void __user *)arg;
-	int ret = 0;
-
-	if (cmd != RCKP_GET_PORTS && rocket_paranoia_check(info, "rp_ioctl"))
-		return -ENXIO;
-
-	switch (cmd) {
-	case RCKP_GET_STRUCT:
-		if (copy_to_user(argp, info, sizeof (struct r_port)))
-			ret = -EFAULT;
-		break;
-	case RCKP_GET_CONFIG:
-		ret = get_config(info, argp);
-		break;
-	case RCKP_SET_CONFIG:
-		ret = set_config(tty, info, argp);
-		break;
-	case RCKP_GET_PORTS:
-		ret = get_ports(info, argp);
-		break;
-	case RCKP_RESET_RM2:
-		ret = reset_rm2(info, argp);
-		break;
-	case RCKP_GET_VERSION:
-		ret = get_version(info, argp);
-		break;
-	default:
-		ret = -ENOIOCTLCMD;
-	}
-	return ret;
-}
-
-static void rp_send_xchar(struct tty_struct *tty, char ch)
-{
-	struct r_port *info = tty->driver_data;
-	CHANNEL_t *cp;
-
-	if (rocket_paranoia_check(info, "rp_send_xchar"))
-		return;
-
-	cp = &info->channel;
-	if (sGetTxCnt(cp))
-		sWriteTxPrioByte(cp, ch);
-	else
-		sWriteTxByte(sGetTxRxDataIO(cp), ch);
-}
-
-static void rp_throttle(struct tty_struct *tty)
-{
-	struct r_port *info = tty->driver_data;
-	CHANNEL_t *cp;
-
-#ifdef ROCKET_DEBUG_THROTTLE
-	printk(KERN_INFO "throttle %s: %d....\n", tty->name,
-	       tty->ldisc.chars_in_buffer(tty));
-#endif
-
-	if (rocket_paranoia_check(info, "rp_throttle"))
-		return;
-
-	cp = &info->channel;
-	if (I_IXOFF(tty))
-		rp_send_xchar(tty, STOP_CHAR(tty));
-
-	sClrRTS(&info->channel);
-}
-
-static void rp_unthrottle(struct tty_struct *tty)
-{
-	struct r_port *info = tty->driver_data;
-	CHANNEL_t *cp;
-#ifdef ROCKET_DEBUG_THROTTLE
-	printk(KERN_INFO "unthrottle %s: %d....\n", tty->name,
-	       tty->ldisc.chars_in_buffer(tty));
-#endif
-
-	if (rocket_paranoia_check(info, "rp_throttle"))
-		return;
-
-	cp = &info->channel;
-	if (I_IXOFF(tty))
-		rp_send_xchar(tty, START_CHAR(tty));
-
-	sSetRTS(&info->channel);
-}
-
-/*
- * ------------------------------------------------------------
- * rp_stop() and rp_start()
- *
- * This routines are called before setting or resetting tty->stopped.
- * They enable or disable transmitter interrupts, as necessary.
- * ------------------------------------------------------------
- */
-static void rp_stop(struct tty_struct *tty)
-{
-	struct r_port *info = tty->driver_data;
-
-#ifdef ROCKET_DEBUG_FLOW
-	printk(KERN_INFO "stop %s: %d %d....\n", tty->name,
-	       info->xmit_cnt, info->xmit_fifo_room);
-#endif
-
-	if (rocket_paranoia_check(info, "rp_stop"))
-		return;
-
-	if (sGetTxCnt(&info->channel))
-		sDisTransmit(&info->channel);
-}
-
-static void rp_start(struct tty_struct *tty)
-{
-	struct r_port *info = tty->driver_data;
-
-#ifdef ROCKET_DEBUG_FLOW
-	printk(KERN_INFO "start %s: %d %d....\n", tty->name,
-	       info->xmit_cnt, info->xmit_fifo_room);
-#endif
-
-	if (rocket_paranoia_check(info, "rp_stop"))
-		return;
-
-	sEnTransmit(&info->channel);
-	set_bit((info->aiop * 8) + info->chan,
-		(void *) &xmit_flags[info->board]);
-}
-
-/*
- * rp_wait_until_sent() --- wait until the transmitter is empty
- */
-static void rp_wait_until_sent(struct tty_struct *tty, int timeout)
-{
-	struct r_port *info = tty->driver_data;
-	CHANNEL_t *cp;
-	unsigned long orig_jiffies;
-	int check_time, exit_time;
-	int txcnt;
-
-	if (rocket_paranoia_check(info, "rp_wait_until_sent"))
-		return;
-
-	cp = &info->channel;
-
-	orig_jiffies = jiffies;
-#ifdef ROCKET_DEBUG_WAIT_UNTIL_SENT
-	printk(KERN_INFO "In RP_wait_until_sent(%d) (jiff=%lu)...\n", timeout,
-	       jiffies);
-	printk(KERN_INFO "cps=%d...\n", info->cps);
-#endif
-	while (1) {
-		txcnt = sGetTxCnt(cp);
-		if (!txcnt) {
-			if (sGetChanStatusLo(cp) & TXSHRMT)
-				break;
-			check_time = (HZ / info->cps) / 5;
-		} else {
-			check_time = HZ * txcnt / info->cps;
-		}
-		if (timeout) {
-			exit_time = orig_jiffies + timeout - jiffies;
-			if (exit_time <= 0)
-				break;
-			if (exit_time < check_time)
-				check_time = exit_time;
-		}
-		if (check_time == 0)
-			check_time = 1;
-#ifdef ROCKET_DEBUG_WAIT_UNTIL_SENT
-		printk(KERN_INFO "txcnt = %d (jiff=%lu,check=%d)...\n", txcnt,
-				jiffies, check_time);
-#endif
-		msleep_interruptible(jiffies_to_msecs(check_time));
-		if (signal_pending(current))
-			break;
-	}
-	__set_current_state(TASK_RUNNING);
-#ifdef ROCKET_DEBUG_WAIT_UNTIL_SENT
-	printk(KERN_INFO "txcnt = %d (jiff=%lu)...done\n", txcnt, jiffies);
-#endif
-}
-
-/*
- * rp_hangup() --- called by tty_hangup() when a hangup is signaled.
- */
-static void rp_hangup(struct tty_struct *tty)
-{
-	CHANNEL_t *cp;
-	struct r_port *info = tty->driver_data;
-	unsigned long flags;
-
-	if (rocket_paranoia_check(info, "rp_hangup"))
-		return;
-
-#if (defined(ROCKET_DEBUG_OPEN) || defined(ROCKET_DEBUG_HANGUP))
-	printk(KERN_INFO "rp_hangup of ttyR%d...\n", info->line);
-#endif
-	rp_flush_buffer(tty);
-	spin_lock_irqsave(&info->port.lock, flags);
-	if (info->port.flags & ASYNC_CLOSING) {
-		spin_unlock_irqrestore(&info->port.lock, flags);
-		return;
-	}
-	if (info->port.count)
-		atomic_dec(&rp_num_ports_open);
-	clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
-	spin_unlock_irqrestore(&info->port.lock, flags);
-
-	tty_port_hangup(&info->port);
-
-	cp = &info->channel;
-	sDisRxFIFO(cp);
-	sDisTransmit(cp);
-	sDisInterrupts(cp, (TXINT_EN | MCINT_EN | RXINT_EN | SRCINT_EN | CHANINT_EN));
-	sDisCTSFlowCtl(cp);
-	sDisTxSoftFlowCtl(cp);
-	sClrTxXOFF(cp);
-	clear_bit(ASYNCB_INITIALIZED, &info->port.flags);
-
-	wake_up_interruptible(&info->port.open_wait);
-}
-
-/*
- *  Exception handler - write char routine.  The RocketPort driver uses a
- *  double-buffering strategy, with the twist that if the in-memory CPU
- *  buffer is empty, and there's space in the transmit FIFO, the
- *  writing routines will write directly to transmit FIFO.
- *  Write buffer and counters protected by spinlocks
- */
-static int rp_put_char(struct tty_struct *tty, unsigned char ch)
-{
-	struct r_port *info = tty->driver_data;
-	CHANNEL_t *cp;
-	unsigned long flags;
-
-	if (rocket_paranoia_check(info, "rp_put_char"))
-		return 0;
-
-	/*
-	 * Grab the port write mutex, locking out other processes that try to
-	 * write to this port
-	 */
-	mutex_lock(&info->write_mtx);
-
-#ifdef ROCKET_DEBUG_WRITE
-	printk(KERN_INFO "rp_put_char %c...\n", ch);
-#endif
-
-	spin_lock_irqsave(&info->slock, flags);
-	cp = &info->channel;
-
-	if (!tty->stopped && !tty->hw_stopped && info->xmit_fifo_room == 0)
-		info->xmit_fifo_room = TXFIFO_SIZE - sGetTxCnt(cp);
-
-	if (tty->stopped || tty->hw_stopped || info->xmit_fifo_room == 0 || info->xmit_cnt != 0) {
-		info->xmit_buf[info->xmit_head++] = ch;
-		info->xmit_head &= XMIT_BUF_SIZE - 1;
-		info->xmit_cnt++;
-		set_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
-	} else {
-		sOutB(sGetTxRxDataIO(cp), ch);
-		info->xmit_fifo_room--;
-	}
-	spin_unlock_irqrestore(&info->slock, flags);
-	mutex_unlock(&info->write_mtx);
-	return 1;
-}
-
-/*
- *  Exception handler - write routine, called when user app writes to the device.
- *  A per port write mutex is used to protect from another process writing to
- *  this port at the same time.  This other process could be running on the other CPU
- *  or get control of the CPU if the copy_from_user() blocks due to a page fault (swapped out). 
- *  Spinlocks protect the info xmit members.
- */
-static int rp_write(struct tty_struct *tty,
-		    const unsigned char *buf, int count)
-{
-	struct r_port *info = tty->driver_data;
-	CHANNEL_t *cp;
-	const unsigned char *b;
-	int c, retval = 0;
-	unsigned long flags;
-
-	if (count <= 0 || rocket_paranoia_check(info, "rp_write"))
-		return 0;
-
-	if (mutex_lock_interruptible(&info->write_mtx))
-		return -ERESTARTSYS;
-
-#ifdef ROCKET_DEBUG_WRITE
-	printk(KERN_INFO "rp_write %d chars...\n", count);
-#endif
-	cp = &info->channel;
-
-	if (!tty->stopped && !tty->hw_stopped && info->xmit_fifo_room < count)
-		info->xmit_fifo_room = TXFIFO_SIZE - sGetTxCnt(cp);
-
-        /*
-	 *  If the write queue for the port is empty, and there is FIFO space, stuff bytes 
-	 *  into FIFO.  Use the write queue for temp storage.
-         */
-	if (!tty->stopped && !tty->hw_stopped && info->xmit_cnt == 0 && info->xmit_fifo_room > 0) {
-		c = min(count, info->xmit_fifo_room);
-		b = buf;
-
-		/*  Push data into FIFO, 2 bytes at a time */
-		sOutStrW(sGetTxRxDataIO(cp), (unsigned short *) b, c / 2);
-
-		/*  If there is a byte remaining, write it */
-		if (c & 1)
-			sOutB(sGetTxRxDataIO(cp), b[c - 1]);
-
-		retval += c;
-		buf += c;
-		count -= c;
-
-		spin_lock_irqsave(&info->slock, flags);
-		info->xmit_fifo_room -= c;
-		spin_unlock_irqrestore(&info->slock, flags);
-	}
-
-	/* If count is zero, we wrote it all and are done */
-	if (!count)
-		goto end;
-
-	/*  Write remaining data into the port's xmit_buf */
-	while (1) {
-		/* Hung up ? */
-		if (!test_bit(ASYNCB_NORMAL_ACTIVE, &info->port.flags))
-			goto end;
-		c = min(count, XMIT_BUF_SIZE - info->xmit_cnt - 1);
-		c = min(c, XMIT_BUF_SIZE - info->xmit_head);
-		if (c <= 0)
-			break;
-
-		b = buf;
-		memcpy(info->xmit_buf + info->xmit_head, b, c);
-
-		spin_lock_irqsave(&info->slock, flags);
-		info->xmit_head =
-		    (info->xmit_head + c) & (XMIT_BUF_SIZE - 1);
-		info->xmit_cnt += c;
-		spin_unlock_irqrestore(&info->slock, flags);
-
-		buf += c;
-		count -= c;
-		retval += c;
-	}
-
-	if ((retval > 0) && !tty->stopped && !tty->hw_stopped)
-		set_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
-	
-end:
- 	if (info->xmit_cnt < WAKEUP_CHARS) {
- 		tty_wakeup(tty);
-#ifdef ROCKETPORT_HAVE_POLL_WAIT
-		wake_up_interruptible(&tty->poll_wait);
-#endif
-	}
-	mutex_unlock(&info->write_mtx);
-	return retval;
-}
-
-/*
- * Return the number of characters that can be sent.  We estimate
- * only using the in-memory transmit buffer only, and ignore the
- * potential space in the transmit FIFO.
- */
-static int rp_write_room(struct tty_struct *tty)
-{
-	struct r_port *info = tty->driver_data;
-	int ret;
-
-	if (rocket_paranoia_check(info, "rp_write_room"))
-		return 0;
-
-	ret = XMIT_BUF_SIZE - info->xmit_cnt - 1;
-	if (ret < 0)
-		ret = 0;
-#ifdef ROCKET_DEBUG_WRITE
-	printk(KERN_INFO "rp_write_room returns %d...\n", ret);
-#endif
-	return ret;
-}
-
-/*
- * Return the number of characters in the buffer.  Again, this only
- * counts those characters in the in-memory transmit buffer.
- */
-static int rp_chars_in_buffer(struct tty_struct *tty)
-{
-	struct r_port *info = tty->driver_data;
-	CHANNEL_t *cp;
-
-	if (rocket_paranoia_check(info, "rp_chars_in_buffer"))
-		return 0;
-
-	cp = &info->channel;
-
-#ifdef ROCKET_DEBUG_WRITE
-	printk(KERN_INFO "rp_chars_in_buffer returns %d...\n", info->xmit_cnt);
-#endif
-	return info->xmit_cnt;
-}
-
-/*
- *  Flushes the TX fifo for a port, deletes data in the xmit_buf stored in the
- *  r_port struct for the port.  Note that spinlock are used to protect info members,
- *  do not call this function if the spinlock is already held.
- */
-static void rp_flush_buffer(struct tty_struct *tty)
-{
-	struct r_port *info = tty->driver_data;
-	CHANNEL_t *cp;
-	unsigned long flags;
-
-	if (rocket_paranoia_check(info, "rp_flush_buffer"))
-		return;
-
-	spin_lock_irqsave(&info->slock, flags);
-	info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
-	spin_unlock_irqrestore(&info->slock, flags);
-
-#ifdef ROCKETPORT_HAVE_POLL_WAIT
-	wake_up_interruptible(&tty->poll_wait);
-#endif
-	tty_wakeup(tty);
-
-	cp = &info->channel;
-	sFlushTxFIFO(cp);
-}
-
-#ifdef CONFIG_PCI
-
-static struct pci_device_id __devinitdata __used rocket_pci_ids[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_RP, PCI_ANY_ID) },
-	{ }
-};
-MODULE_DEVICE_TABLE(pci, rocket_pci_ids);
-
-/*
- *  Called when a PCI card is found.  Retrieves and stores model information,
- *  init's aiopic and serial port hardware.
- *  Inputs:  i is the board number (0-n)
- */
-static __init int register_PCI(int i, struct pci_dev *dev)
-{
-	int num_aiops, aiop, max_num_aiops, num_chan, chan;
-	unsigned int aiopio[MAX_AIOPS_PER_BOARD];
-	char *str, *board_type;
-	CONTROLLER_t *ctlp;
-
-	int fast_clock = 0;
-	int altChanRingIndicator = 0;
-	int ports_per_aiop = 8;
-	WordIO_t ConfigIO = 0;
-	ByteIO_t UPCIRingInd = 0;
-
-	if (!dev || pci_enable_device(dev))
-		return 0;
-
-	rcktpt_io_addr[i] = pci_resource_start(dev, 0);
-
-	rcktpt_type[i] = ROCKET_TYPE_NORMAL;
-	rocketModel[i].loadrm2 = 0;
-	rocketModel[i].startingPortNumber = nextLineNumber;
-
-	/*  Depending on the model, set up some config variables */
-	switch (dev->device) {
-	case PCI_DEVICE_ID_RP4QUAD:
-		str = "Quadcable";
-		max_num_aiops = 1;
-		ports_per_aiop = 4;
-		rocketModel[i].model = MODEL_RP4QUAD;
-		strcpy(rocketModel[i].modelString, "RocketPort 4 port w/quad cable");
-		rocketModel[i].numPorts = 4;
-		break;
-	case PCI_DEVICE_ID_RP8OCTA:
-		str = "Octacable";
-		max_num_aiops = 1;
-		rocketModel[i].model = MODEL_RP8OCTA;
-		strcpy(rocketModel[i].modelString, "RocketPort 8 port w/octa cable");
-		rocketModel[i].numPorts = 8;
-		break;
-	case PCI_DEVICE_ID_URP8OCTA:
-		str = "Octacable";
-		max_num_aiops = 1;
-		rocketModel[i].model = MODEL_UPCI_RP8OCTA;
-		strcpy(rocketModel[i].modelString, "RocketPort UPCI 8 port w/octa cable");
-		rocketModel[i].numPorts = 8;
-		break;
-	case PCI_DEVICE_ID_RP8INTF:
-		str = "8";
-		max_num_aiops = 1;
-		rocketModel[i].model = MODEL_RP8INTF;
-		strcpy(rocketModel[i].modelString, "RocketPort 8 port w/external I/F");
-		rocketModel[i].numPorts = 8;
-		break;
-	case PCI_DEVICE_ID_URP8INTF:
-		str = "8";
-		max_num_aiops = 1;
-		rocketModel[i].model = MODEL_UPCI_RP8INTF;
-		strcpy(rocketModel[i].modelString, "RocketPort UPCI 8 port w/external I/F");
-		rocketModel[i].numPorts = 8;
-		break;
-	case PCI_DEVICE_ID_RP8J:
-		str = "8J";
-		max_num_aiops = 1;
-		rocketModel[i].model = MODEL_RP8J;
-		strcpy(rocketModel[i].modelString, "RocketPort 8 port w/RJ11 connectors");
-		rocketModel[i].numPorts = 8;
-		break;
-	case PCI_DEVICE_ID_RP4J:
-		str = "4J";
-		max_num_aiops = 1;
-		ports_per_aiop = 4;
-		rocketModel[i].model = MODEL_RP4J;
-		strcpy(rocketModel[i].modelString, "RocketPort 4 port w/RJ45 connectors");
-		rocketModel[i].numPorts = 4;
-		break;
-	case PCI_DEVICE_ID_RP8SNI:
-		str = "8 (DB78 Custom)";
-		max_num_aiops = 1;
-		rocketModel[i].model = MODEL_RP8SNI;
-		strcpy(rocketModel[i].modelString, "RocketPort 8 port w/ custom DB78");
-		rocketModel[i].numPorts = 8;
-		break;
-	case PCI_DEVICE_ID_RP16SNI:
-		str = "16 (DB78 Custom)";
-		max_num_aiops = 2;
-		rocketModel[i].model = MODEL_RP16SNI;
-		strcpy(rocketModel[i].modelString, "RocketPort 16 port w/ custom DB78");
-		rocketModel[i].numPorts = 16;
-		break;
-	case PCI_DEVICE_ID_RP16INTF:
-		str = "16";
-		max_num_aiops = 2;
-		rocketModel[i].model = MODEL_RP16INTF;
-		strcpy(rocketModel[i].modelString, "RocketPort 16 port w/external I/F");
-		rocketModel[i].numPorts = 16;
-		break;
-	case PCI_DEVICE_ID_URP16INTF:
-		str = "16";
-		max_num_aiops = 2;
-		rocketModel[i].model = MODEL_UPCI_RP16INTF;
-		strcpy(rocketModel[i].modelString, "RocketPort UPCI 16 port w/external I/F");
-		rocketModel[i].numPorts = 16;
-		break;
-	case PCI_DEVICE_ID_CRP16INTF:
-		str = "16";
-		max_num_aiops = 2;
-		rocketModel[i].model = MODEL_CPCI_RP16INTF;
-		strcpy(rocketModel[i].modelString, "RocketPort Compact PCI 16 port w/external I/F");
-		rocketModel[i].numPorts = 16;
-		break;
-	case PCI_DEVICE_ID_RP32INTF:
-		str = "32";
-		max_num_aiops = 4;
-		rocketModel[i].model = MODEL_RP32INTF;
-		strcpy(rocketModel[i].modelString, "RocketPort 32 port w/external I/F");
-		rocketModel[i].numPorts = 32;
-		break;
-	case PCI_DEVICE_ID_URP32INTF:
-		str = "32";
-		max_num_aiops = 4;
-		rocketModel[i].model = MODEL_UPCI_RP32INTF;
-		strcpy(rocketModel[i].modelString, "RocketPort UPCI 32 port w/external I/F");
-		rocketModel[i].numPorts = 32;
-		break;
-	case PCI_DEVICE_ID_RPP4:
-		str = "Plus Quadcable";
-		max_num_aiops = 1;
-		ports_per_aiop = 4;
-		altChanRingIndicator++;
-		fast_clock++;
-		rocketModel[i].model = MODEL_RPP4;
-		strcpy(rocketModel[i].modelString, "RocketPort Plus 4 port");
-		rocketModel[i].numPorts = 4;
-		break;
-	case PCI_DEVICE_ID_RPP8:
-		str = "Plus Octacable";
-		max_num_aiops = 2;
-		ports_per_aiop = 4;
-		altChanRingIndicator++;
-		fast_clock++;
-		rocketModel[i].model = MODEL_RPP8;
-		strcpy(rocketModel[i].modelString, "RocketPort Plus 8 port");
-		rocketModel[i].numPorts = 8;
-		break;
-	case PCI_DEVICE_ID_RP2_232:
-		str = "Plus 2 (RS-232)";
-		max_num_aiops = 1;
-		ports_per_aiop = 2;
-		altChanRingIndicator++;
-		fast_clock++;
-		rocketModel[i].model = MODEL_RP2_232;
-		strcpy(rocketModel[i].modelString, "RocketPort Plus 2 port RS232");
-		rocketModel[i].numPorts = 2;
-		break;
-	case PCI_DEVICE_ID_RP2_422:
-		str = "Plus 2 (RS-422)";
-		max_num_aiops = 1;
-		ports_per_aiop = 2;
-		altChanRingIndicator++;
-		fast_clock++;
-		rocketModel[i].model = MODEL_RP2_422;
-		strcpy(rocketModel[i].modelString, "RocketPort Plus 2 port RS422");
-		rocketModel[i].numPorts = 2;
-		break;
-	case PCI_DEVICE_ID_RP6M:
-
-		max_num_aiops = 1;
-		ports_per_aiop = 6;
-		str = "6-port";
-
-		/*  If revision is 1, the rocketmodem flash must be loaded.
-		 *  If it is 2 it is a "socketed" version. */
-		if (dev->revision == 1) {
-			rcktpt_type[i] = ROCKET_TYPE_MODEMII;
-			rocketModel[i].loadrm2 = 1;
-		} else {
-			rcktpt_type[i] = ROCKET_TYPE_MODEM;
-		}
-
-		rocketModel[i].model = MODEL_RP6M;
-		strcpy(rocketModel[i].modelString, "RocketModem 6 port");
-		rocketModel[i].numPorts = 6;
-		break;
-	case PCI_DEVICE_ID_RP4M:
-		max_num_aiops = 1;
-		ports_per_aiop = 4;
-		str = "4-port";
-		if (dev->revision == 1) {
-			rcktpt_type[i] = ROCKET_TYPE_MODEMII;
-			rocketModel[i].loadrm2 = 1;
-		} else {
-			rcktpt_type[i] = ROCKET_TYPE_MODEM;
-		}
-
-		rocketModel[i].model = MODEL_RP4M;
-		strcpy(rocketModel[i].modelString, "RocketModem 4 port");
-		rocketModel[i].numPorts = 4;
-		break;
-	default:
-		str = "(unknown/unsupported)";
-		max_num_aiops = 0;
-		break;
-	}
-
-	/*
-	 * Check for UPCI boards.
-	 */
-
-	switch (dev->device) {
-	case PCI_DEVICE_ID_URP32INTF:
-	case PCI_DEVICE_ID_URP8INTF:
-	case PCI_DEVICE_ID_URP16INTF:
-	case PCI_DEVICE_ID_CRP16INTF:
-	case PCI_DEVICE_ID_URP8OCTA:
-		rcktpt_io_addr[i] = pci_resource_start(dev, 2);
-		ConfigIO = pci_resource_start(dev, 1);
-		if (dev->device == PCI_DEVICE_ID_URP8OCTA) {
-			UPCIRingInd = rcktpt_io_addr[i] + _PCI_9030_RING_IND;
-
-			/*
-			 * Check for octa or quad cable.
-			 */
-			if (!
-			    (sInW(ConfigIO + _PCI_9030_GPIO_CTRL) &
-			     PCI_GPIO_CTRL_8PORT)) {
-				str = "Quadcable";
-				ports_per_aiop = 4;
-				rocketModel[i].numPorts = 4;
-			}
-		}
-		break;
-	case PCI_DEVICE_ID_UPCI_RM3_8PORT:
-		str = "8 ports";
-		max_num_aiops = 1;
-		rocketModel[i].model = MODEL_UPCI_RM3_8PORT;
-		strcpy(rocketModel[i].modelString, "RocketModem III 8 port");
-		rocketModel[i].numPorts = 8;
-		rcktpt_io_addr[i] = pci_resource_start(dev, 2);
-		UPCIRingInd = rcktpt_io_addr[i] + _PCI_9030_RING_IND;
-		ConfigIO = pci_resource_start(dev, 1);
-		rcktpt_type[i] = ROCKET_TYPE_MODEMIII;
-		break;
-	case PCI_DEVICE_ID_UPCI_RM3_4PORT:
-		str = "4 ports";
-		max_num_aiops = 1;
-		rocketModel[i].model = MODEL_UPCI_RM3_4PORT;
-		strcpy(rocketModel[i].modelString, "RocketModem III 4 port");
-		rocketModel[i].numPorts = 4;
-		rcktpt_io_addr[i] = pci_resource_start(dev, 2);
-		UPCIRingInd = rcktpt_io_addr[i] + _PCI_9030_RING_IND;
-		ConfigIO = pci_resource_start(dev, 1);
-		rcktpt_type[i] = ROCKET_TYPE_MODEMIII;
-		break;
-	default:
-		break;
-	}
-
-	switch (rcktpt_type[i]) {
-	case ROCKET_TYPE_MODEM:
-		board_type = "RocketModem";
-		break;
-	case ROCKET_TYPE_MODEMII:
-		board_type = "RocketModem II";
-		break;
-	case ROCKET_TYPE_MODEMIII:
-		board_type = "RocketModem III";
-		break;
-	default:
-		board_type = "RocketPort";
-		break;
-	}
-
-	if (fast_clock) {
-		sClockPrescale = 0x12;	/* mod 2 (divide by 3) */
-		rp_baud_base[i] = 921600;
-	} else {
-		/*
-		 * If support_low_speed is set, use the slow clock
-		 * prescale, which supports 50 bps
-		 */
-		if (support_low_speed) {
-			/* mod 9 (divide by 10) prescale */
-			sClockPrescale = 0x19;
-			rp_baud_base[i] = 230400;
-		} else {
-			/* mod 4 (devide by 5) prescale */
-			sClockPrescale = 0x14;
-			rp_baud_base[i] = 460800;
-		}
-	}
-
-	for (aiop = 0; aiop < max_num_aiops; aiop++)
-		aiopio[aiop] = rcktpt_io_addr[i] + (aiop * 0x40);
-	ctlp = sCtlNumToCtlPtr(i);
-	num_aiops = sPCIInitController(ctlp, i, aiopio, max_num_aiops, ConfigIO, 0, FREQ_DIS, 0, altChanRingIndicator, UPCIRingInd);
-	for (aiop = 0; aiop < max_num_aiops; aiop++)
-		ctlp->AiopNumChan[aiop] = ports_per_aiop;
-
-	dev_info(&dev->dev, "comtrol PCI controller #%d found at "
-		"address %04lx, %d AIOP(s) (%s), creating ttyR%d - %ld\n",
-		i, rcktpt_io_addr[i], num_aiops, rocketModel[i].modelString,
-		rocketModel[i].startingPortNumber,
-		rocketModel[i].startingPortNumber + rocketModel[i].numPorts-1);
-
-	if (num_aiops <= 0) {
-		rcktpt_io_addr[i] = 0;
-		return (0);
-	}
-	is_PCI[i] = 1;
-
-	/*  Reset the AIOPIC, init the serial ports */
-	for (aiop = 0; aiop < num_aiops; aiop++) {
-		sResetAiopByNum(ctlp, aiop);
-		num_chan = ports_per_aiop;
-		for (chan = 0; chan < num_chan; chan++)
-			init_r_port(i, aiop, chan, dev);
-	}
-
-	/*  Rocket modems must be reset */
-	if ((rcktpt_type[i] == ROCKET_TYPE_MODEM) ||
-	    (rcktpt_type[i] == ROCKET_TYPE_MODEMII) ||
-	    (rcktpt_type[i] == ROCKET_TYPE_MODEMIII)) {
-		num_chan = ports_per_aiop;
-		for (chan = 0; chan < num_chan; chan++)
-			sPCIModemReset(ctlp, chan, 1);
-		msleep(500);
-		for (chan = 0; chan < num_chan; chan++)
-			sPCIModemReset(ctlp, chan, 0);
-		msleep(500);
-		rmSpeakerReset(ctlp, rocketModel[i].model);
-	}
-	return (1);
-}
-
-/*
- *  Probes for PCI cards, inits them if found
- *  Input:   board_found = number of ISA boards already found, or the
- *           starting board number
- *  Returns: Number of PCI boards found
- */
-static int __init init_PCI(int boards_found)
-{
-	struct pci_dev *dev = NULL;
-	int count = 0;
-
-	/*  Work through the PCI device list, pulling out ours */
-	while ((dev = pci_get_device(PCI_VENDOR_ID_RP, PCI_ANY_ID, dev))) {
-		if (register_PCI(count + boards_found, dev))
-			count++;
-	}
-	return (count);
-}
-
-#endif				/* CONFIG_PCI */
-
-/*
- *  Probes for ISA cards
- *  Input:   i = the board number to look for
- *  Returns: 1 if board found, 0 else
- */
-static int __init init_ISA(int i)
-{
-	int num_aiops, num_chan = 0, total_num_chan = 0;
-	int aiop, chan;
-	unsigned int aiopio[MAX_AIOPS_PER_BOARD];
-	CONTROLLER_t *ctlp;
-	char *type_string;
-
-	/*  If io_addr is zero, no board configured */
-	if (rcktpt_io_addr[i] == 0)
-		return (0);
-
-	/*  Reserve the IO region */
-	if (!request_region(rcktpt_io_addr[i], 64, "Comtrol RocketPort")) {
-		printk(KERN_ERR "Unable to reserve IO region for configured "
-				"ISA RocketPort at address 0x%lx, board not "
-				"installed...\n", rcktpt_io_addr[i]);
-		rcktpt_io_addr[i] = 0;
-		return (0);
-	}
-
-	ctlp = sCtlNumToCtlPtr(i);
-
-	ctlp->boardType = rcktpt_type[i];
-
-	switch (rcktpt_type[i]) {
-	case ROCKET_TYPE_PC104:
-		type_string = "(PC104)";
-		break;
-	case ROCKET_TYPE_MODEM:
-		type_string = "(RocketModem)";
-		break;
-	case ROCKET_TYPE_MODEMII:
-		type_string = "(RocketModem II)";
-		break;
-	default:
-		type_string = "";
-		break;
-	}
-
-	/*
-	 * If support_low_speed is set, use the slow clock prescale,
-	 * which supports 50 bps
-	 */
-	if (support_low_speed) {
-		sClockPrescale = 0x19;	/* mod 9 (divide by 10) prescale */
-		rp_baud_base[i] = 230400;
-	} else {
-		sClockPrescale = 0x14;	/* mod 4 (devide by 5) prescale */
-		rp_baud_base[i] = 460800;
-	}
-
-	for (aiop = 0; aiop < MAX_AIOPS_PER_BOARD; aiop++)
-		aiopio[aiop] = rcktpt_io_addr[i] + (aiop * 0x400);
-
-	num_aiops = sInitController(ctlp, i, controller + (i * 0x400), aiopio,  MAX_AIOPS_PER_BOARD, 0, FREQ_DIS, 0);
-
-	if (ctlp->boardType == ROCKET_TYPE_PC104) {
-		sEnAiop(ctlp, 2);	/* only one AIOPIC, but these */
-		sEnAiop(ctlp, 3);	/* CSels used for other stuff */
-	}
-
-	/*  If something went wrong initing the AIOP's release the ISA IO memory */
-	if (num_aiops <= 0) {
-		release_region(rcktpt_io_addr[i], 64);
-		rcktpt_io_addr[i] = 0;
-		return (0);
-	}
-  
-	rocketModel[i].startingPortNumber = nextLineNumber;
-
-	for (aiop = 0; aiop < num_aiops; aiop++) {
-		sResetAiopByNum(ctlp, aiop);
-		sEnAiop(ctlp, aiop);
-		num_chan = sGetAiopNumChan(ctlp, aiop);
-		total_num_chan += num_chan;
-		for (chan = 0; chan < num_chan; chan++)
-			init_r_port(i, aiop, chan, NULL);
-	}
-	is_PCI[i] = 0;
-	if ((rcktpt_type[i] == ROCKET_TYPE_MODEM) || (rcktpt_type[i] == ROCKET_TYPE_MODEMII)) {
-		num_chan = sGetAiopNumChan(ctlp, 0);
-		total_num_chan = num_chan;
-		for (chan = 0; chan < num_chan; chan++)
-			sModemReset(ctlp, chan, 1);
-		msleep(500);
-		for (chan = 0; chan < num_chan; chan++)
-			sModemReset(ctlp, chan, 0);
-		msleep(500);
-		strcpy(rocketModel[i].modelString, "RocketModem ISA");
-	} else {
-		strcpy(rocketModel[i].modelString, "RocketPort ISA");
-	}
-	rocketModel[i].numPorts = total_num_chan;
-	rocketModel[i].model = MODEL_ISA;
-
-	printk(KERN_INFO "RocketPort ISA card #%d found at 0x%lx - %d AIOPs %s\n", 
-	       i, rcktpt_io_addr[i], num_aiops, type_string);
-
-	printk(KERN_INFO "Installing %s, creating /dev/ttyR%d - %ld\n",
-	       rocketModel[i].modelString,
-	       rocketModel[i].startingPortNumber,
-	       rocketModel[i].startingPortNumber +
-	       rocketModel[i].numPorts - 1);
-
-	return (1);
-}
-
-static const struct tty_operations rocket_ops = {
-	.open = rp_open,
-	.close = rp_close,
-	.write = rp_write,
-	.put_char = rp_put_char,
-	.write_room = rp_write_room,
-	.chars_in_buffer = rp_chars_in_buffer,
-	.flush_buffer = rp_flush_buffer,
-	.ioctl = rp_ioctl,
-	.throttle = rp_throttle,
-	.unthrottle = rp_unthrottle,
-	.set_termios = rp_set_termios,
-	.stop = rp_stop,
-	.start = rp_start,
-	.hangup = rp_hangup,
-	.break_ctl = rp_break,
-	.send_xchar = rp_send_xchar,
-	.wait_until_sent = rp_wait_until_sent,
-	.tiocmget = rp_tiocmget,
-	.tiocmset = rp_tiocmset,
-};
-
-static const struct tty_port_operations rocket_port_ops = {
-	.carrier_raised = carrier_raised,
-	.dtr_rts = dtr_rts,
-};
-
-/*
- * The module "startup" routine; it's run when the module is loaded.
- */
-static int __init rp_init(void)
-{
-	int ret = -ENOMEM, pci_boards_found, isa_boards_found, i;
-
-	printk(KERN_INFO "RocketPort device driver module, version %s, %s\n",
-	       ROCKET_VERSION, ROCKET_DATE);
-
-	rocket_driver = alloc_tty_driver(MAX_RP_PORTS);
-	if (!rocket_driver)
-		goto err;
-
-	/*
-	 *  If board 1 is non-zero, there is at least one ISA configured.  If controller is 
-	 *  zero, use the default controller IO address of board1 + 0x40.
-	 */
-	if (board1) {
-		if (controller == 0)
-			controller = board1 + 0x40;
-	} else {
-		controller = 0;  /*  Used as a flag, meaning no ISA boards */
-	}
-
-	/*  If an ISA card is configured, reserve the 4 byte IO space for the Mudbac controller */
-	if (controller && (!request_region(controller, 4, "Comtrol RocketPort"))) {
-		printk(KERN_ERR "Unable to reserve IO region for first "
-			"configured ISA RocketPort controller 0x%lx.  "
-			"Driver exiting\n", controller);
-		ret = -EBUSY;
-		goto err_tty;
-	}
-
-	/*  Store ISA variable retrieved from command line or .conf file. */
-	rcktpt_io_addr[0] = board1;
-	rcktpt_io_addr[1] = board2;
-	rcktpt_io_addr[2] = board3;
-	rcktpt_io_addr[3] = board4;
-
-	rcktpt_type[0] = modem1 ? ROCKET_TYPE_MODEM : ROCKET_TYPE_NORMAL;
-	rcktpt_type[0] = pc104_1[0] ? ROCKET_TYPE_PC104 : rcktpt_type[0];
-	rcktpt_type[1] = modem2 ? ROCKET_TYPE_MODEM : ROCKET_TYPE_NORMAL;
-	rcktpt_type[1] = pc104_2[0] ? ROCKET_TYPE_PC104 : rcktpt_type[1];
-	rcktpt_type[2] = modem3 ? ROCKET_TYPE_MODEM : ROCKET_TYPE_NORMAL;
-	rcktpt_type[2] = pc104_3[0] ? ROCKET_TYPE_PC104 : rcktpt_type[2];
-	rcktpt_type[3] = modem4 ? ROCKET_TYPE_MODEM : ROCKET_TYPE_NORMAL;
-	rcktpt_type[3] = pc104_4[0] ? ROCKET_TYPE_PC104 : rcktpt_type[3];
-
-	/*
-	 * Set up the tty driver structure and then register this
-	 * driver with the tty layer.
-	 */
-
-	rocket_driver->owner = THIS_MODULE;
-	rocket_driver->flags = TTY_DRIVER_DYNAMIC_DEV;
-	rocket_driver->name = "ttyR";
-	rocket_driver->driver_name = "Comtrol RocketPort";
-	rocket_driver->major = TTY_ROCKET_MAJOR;
-	rocket_driver->minor_start = 0;
-	rocket_driver->type = TTY_DRIVER_TYPE_SERIAL;
-	rocket_driver->subtype = SERIAL_TYPE_NORMAL;
-	rocket_driver->init_termios = tty_std_termios;
-	rocket_driver->init_termios.c_cflag =
-	    B9600 | CS8 | CREAD | HUPCL | CLOCAL;
-	rocket_driver->init_termios.c_ispeed = 9600;
-	rocket_driver->init_termios.c_ospeed = 9600;
-#ifdef ROCKET_SOFT_FLOW
-	rocket_driver->flags |= TTY_DRIVER_REAL_RAW;
-#endif
-	tty_set_operations(rocket_driver, &rocket_ops);
-
-	ret = tty_register_driver(rocket_driver);
-	if (ret < 0) {
-		printk(KERN_ERR "Couldn't install tty RocketPort driver\n");
-		goto err_controller;
-	}
-
-#ifdef ROCKET_DEBUG_OPEN
-	printk(KERN_INFO "RocketPort driver is major %d\n", rocket_driver.major);
-#endif
-
-	/*
-	 *  OK, let's probe each of the controllers looking for boards.  Any boards found
-         *  will be initialized here.
-	 */
-	isa_boards_found = 0;
-	pci_boards_found = 0;
-
-	for (i = 0; i < NUM_BOARDS; i++) {
-		if (init_ISA(i))
-			isa_boards_found++;
-	}
-
-#ifdef CONFIG_PCI
-	if (isa_boards_found < NUM_BOARDS)
-		pci_boards_found = init_PCI(isa_boards_found);
-#endif
-
-	max_board = pci_boards_found + isa_boards_found;
-
-	if (max_board == 0) {
-		printk(KERN_ERR "No rocketport ports found; unloading driver\n");
-		ret = -ENXIO;
-		goto err_ttyu;
-	}
-
-	return 0;
-err_ttyu:
-	tty_unregister_driver(rocket_driver);
-err_controller:
-	if (controller)
-		release_region(controller, 4);
-err_tty:
-	put_tty_driver(rocket_driver);
-err:
-	return ret;
-}
-
-
-static void rp_cleanup_module(void)
-{
-	int retval;
-	int i;
-
-	del_timer_sync(&rocket_timer);
-
-	retval = tty_unregister_driver(rocket_driver);
-	if (retval)
-		printk(KERN_ERR "Error %d while trying to unregister "
-		       "rocketport driver\n", -retval);
-
-	for (i = 0; i < MAX_RP_PORTS; i++)
-		if (rp_table[i]) {
-			tty_unregister_device(rocket_driver, i);
-			kfree(rp_table[i]);
-		}
-
-	put_tty_driver(rocket_driver);
-
-	for (i = 0; i < NUM_BOARDS; i++) {
-		if (rcktpt_io_addr[i] <= 0 || is_PCI[i])
-			continue;
-		release_region(rcktpt_io_addr[i], 64);
-	}
-	if (controller)
-		release_region(controller, 4);
-}
-
-/***************************************************************************
-Function: sInitController
-Purpose:  Initialization of controller global registers and controller
-          structure.
-Call:     sInitController(CtlP,CtlNum,MudbacIO,AiopIOList,AiopIOListSize,
-                          IRQNum,Frequency,PeriodicOnly)
-          CONTROLLER_T *CtlP; Ptr to controller structure
-          int CtlNum; Controller number
-          ByteIO_t MudbacIO; Mudbac base I/O address.
-          ByteIO_t *AiopIOList; List of I/O addresses for each AIOP.
-             This list must be in the order the AIOPs will be found on the
-             controller.  Once an AIOP in the list is not found, it is
-             assumed that there are no more AIOPs on the controller.
-          int AiopIOListSize; Number of addresses in AiopIOList
-          int IRQNum; Interrupt Request number.  Can be any of the following:
-                         0: Disable global interrupts
-                         3: IRQ 3
-                         4: IRQ 4
-                         5: IRQ 5
-                         9: IRQ 9
-                         10: IRQ 10
-                         11: IRQ 11
-                         12: IRQ 12
-                         15: IRQ 15
-          Byte_t Frequency: A flag identifying the frequency
-                   of the periodic interrupt, can be any one of the following:
-                      FREQ_DIS - periodic interrupt disabled
-                      FREQ_137HZ - 137 Hertz
-                      FREQ_69HZ - 69 Hertz
-                      FREQ_34HZ - 34 Hertz
-                      FREQ_17HZ - 17 Hertz
-                      FREQ_9HZ - 9 Hertz
-                      FREQ_4HZ - 4 Hertz
-                   If IRQNum is set to 0 the Frequency parameter is
-                   overidden, it is forced to a value of FREQ_DIS.
-          int PeriodicOnly: 1 if all interrupts except the periodic
-                               interrupt are to be blocked.
-                            0 is both the periodic interrupt and
-                               other channel interrupts are allowed.
-                            If IRQNum is set to 0 the PeriodicOnly parameter is
-                               overidden, it is forced to a value of 0.
-Return:   int: Number of AIOPs on the controller, or CTLID_NULL if controller
-               initialization failed.
-
-Comments:
-          If periodic interrupts are to be disabled but AIOP interrupts
-          are allowed, set Frequency to FREQ_DIS and PeriodicOnly to 0.
-
-          If interrupts are to be completely disabled set IRQNum to 0.
-
-          Setting Frequency to FREQ_DIS and PeriodicOnly to 1 is an
-          invalid combination.
-
-          This function performs initialization of global interrupt modes,
-          but it does not actually enable global interrupts.  To enable
-          and disable global interrupts use functions sEnGlobalInt() and
-          sDisGlobalInt().  Enabling of global interrupts is normally not
-          done until all other initializations are complete.
-
-          Even if interrupts are globally enabled, they must also be
-          individually enabled for each channel that is to generate
-          interrupts.
-
-Warnings: No range checking on any of the parameters is done.
-
-          No context switches are allowed while executing this function.
-
-          After this function all AIOPs on the controller are disabled,
-          they can be enabled with sEnAiop().
-*/
-static int sInitController(CONTROLLER_T * CtlP, int CtlNum, ByteIO_t MudbacIO,
-			   ByteIO_t * AiopIOList, int AiopIOListSize,
-			   int IRQNum, Byte_t Frequency, int PeriodicOnly)
-{
-	int i;
-	ByteIO_t io;
-	int done;
-
-	CtlP->AiopIntrBits = aiop_intr_bits;
-	CtlP->AltChanRingIndicator = 0;
-	CtlP->CtlNum = CtlNum;
-	CtlP->CtlID = CTLID_0001;	/* controller release 1 */
-	CtlP->BusType = isISA;
-	CtlP->MBaseIO = MudbacIO;
-	CtlP->MReg1IO = MudbacIO + 1;
-	CtlP->MReg2IO = MudbacIO + 2;
-	CtlP->MReg3IO = MudbacIO + 3;
-#if 1
-	CtlP->MReg2 = 0;	/* interrupt disable */
-	CtlP->MReg3 = 0;	/* no periodic interrupts */
-#else
-	if (sIRQMap[IRQNum] == 0) {	/* interrupts globally disabled */
-		CtlP->MReg2 = 0;	/* interrupt disable */
-		CtlP->MReg3 = 0;	/* no periodic interrupts */
-	} else {
-		CtlP->MReg2 = sIRQMap[IRQNum];	/* set IRQ number */
-		CtlP->MReg3 = Frequency;	/* set frequency */
-		if (PeriodicOnly) {	/* periodic interrupt only */
-			CtlP->MReg3 |= PERIODIC_ONLY;
-		}
-	}
-#endif
-	sOutB(CtlP->MReg2IO, CtlP->MReg2);
-	sOutB(CtlP->MReg3IO, CtlP->MReg3);
-	sControllerEOI(CtlP);	/* clear EOI if warm init */
-	/* Init AIOPs */
-	CtlP->NumAiop = 0;
-	for (i = done = 0; i < AiopIOListSize; i++) {
-		io = AiopIOList[i];
-		CtlP->AiopIO[i] = (WordIO_t) io;
-		CtlP->AiopIntChanIO[i] = io + _INT_CHAN;
-		sOutB(CtlP->MReg2IO, CtlP->MReg2 | (i & 0x03));	/* AIOP index */
-		sOutB(MudbacIO, (Byte_t) (io >> 6));	/* set up AIOP I/O in MUDBAC */
-		if (done)
-			continue;
-		sEnAiop(CtlP, i);	/* enable the AIOP */
-		CtlP->AiopID[i] = sReadAiopID(io);	/* read AIOP ID */
-		if (CtlP->AiopID[i] == AIOPID_NULL)	/* if AIOP does not exist */
-			done = 1;	/* done looking for AIOPs */
-		else {
-			CtlP->AiopNumChan[i] = sReadAiopNumChan((WordIO_t) io);	/* num channels in AIOP */
-			sOutW((WordIO_t) io + _INDX_ADDR, _CLK_PRE);	/* clock prescaler */
-			sOutB(io + _INDX_DATA, sClockPrescale);
-			CtlP->NumAiop++;	/* bump count of AIOPs */
-		}
-		sDisAiop(CtlP, i);	/* disable AIOP */
-	}
-
-	if (CtlP->NumAiop == 0)
-		return (-1);
-	else
-		return (CtlP->NumAiop);
-}
-
-/***************************************************************************
-Function: sPCIInitController
-Purpose:  Initialization of controller global registers and controller
-          structure.
-Call:     sPCIInitController(CtlP,CtlNum,AiopIOList,AiopIOListSize,
-                          IRQNum,Frequency,PeriodicOnly)
-          CONTROLLER_T *CtlP; Ptr to controller structure
-          int CtlNum; Controller number
-          ByteIO_t *AiopIOList; List of I/O addresses for each AIOP.
-             This list must be in the order the AIOPs will be found on the
-             controller.  Once an AIOP in the list is not found, it is
-             assumed that there are no more AIOPs on the controller.
-          int AiopIOListSize; Number of addresses in AiopIOList
-          int IRQNum; Interrupt Request number.  Can be any of the following:
-                         0: Disable global interrupts
-                         3: IRQ 3
-                         4: IRQ 4
-                         5: IRQ 5
-                         9: IRQ 9
-                         10: IRQ 10
-                         11: IRQ 11
-                         12: IRQ 12
-                         15: IRQ 15
-          Byte_t Frequency: A flag identifying the frequency
-                   of the periodic interrupt, can be any one of the following:
-                      FREQ_DIS - periodic interrupt disabled
-                      FREQ_137HZ - 137 Hertz
-                      FREQ_69HZ - 69 Hertz
-                      FREQ_34HZ - 34 Hertz
-                      FREQ_17HZ - 17 Hertz
-                      FREQ_9HZ - 9 Hertz
-                      FREQ_4HZ - 4 Hertz
-                   If IRQNum is set to 0 the Frequency parameter is
-                   overidden, it is forced to a value of FREQ_DIS.
-          int PeriodicOnly: 1 if all interrupts except the periodic
-                               interrupt are to be blocked.
-                            0 is both the periodic interrupt and
-                               other channel interrupts are allowed.
-                            If IRQNum is set to 0 the PeriodicOnly parameter is
-                               overidden, it is forced to a value of 0.
-Return:   int: Number of AIOPs on the controller, or CTLID_NULL if controller
-               initialization failed.
-
-Comments:
-          If periodic interrupts are to be disabled but AIOP interrupts
-          are allowed, set Frequency to FREQ_DIS and PeriodicOnly to 0.
-
-          If interrupts are to be completely disabled set IRQNum to 0.
-
-          Setting Frequency to FREQ_DIS and PeriodicOnly to 1 is an
-          invalid combination.
-
-          This function performs initialization of global interrupt modes,
-          but it does not actually enable global interrupts.  To enable
-          and disable global interrupts use functions sEnGlobalInt() and
-          sDisGlobalInt().  Enabling of global interrupts is normally not
-          done until all other initializations are complete.
-
-          Even if interrupts are globally enabled, they must also be
-          individually enabled for each channel that is to generate
-          interrupts.
-
-Warnings: No range checking on any of the parameters is done.
-
-          No context switches are allowed while executing this function.
-
-          After this function all AIOPs on the controller are disabled,
-          they can be enabled with sEnAiop().
-*/
-static int sPCIInitController(CONTROLLER_T * CtlP, int CtlNum,
-			      ByteIO_t * AiopIOList, int AiopIOListSize,
-			      WordIO_t ConfigIO, int IRQNum, Byte_t Frequency,
-			      int PeriodicOnly, int altChanRingIndicator,
-			      int UPCIRingInd)
-{
-	int i;
-	ByteIO_t io;
-
-	CtlP->AltChanRingIndicator = altChanRingIndicator;
-	CtlP->UPCIRingInd = UPCIRingInd;
-	CtlP->CtlNum = CtlNum;
-	CtlP->CtlID = CTLID_0001;	/* controller release 1 */
-	CtlP->BusType = isPCI;	/* controller release 1 */
-
-	if (ConfigIO) {
-		CtlP->isUPCI = 1;
-		CtlP->PCIIO = ConfigIO + _PCI_9030_INT_CTRL;
-		CtlP->PCIIO2 = ConfigIO + _PCI_9030_GPIO_CTRL;
-		CtlP->AiopIntrBits = upci_aiop_intr_bits;
-	} else {
-		CtlP->isUPCI = 0;
-		CtlP->PCIIO =
-		    (WordIO_t) ((ByteIO_t) AiopIOList[0] + _PCI_INT_FUNC);
-		CtlP->AiopIntrBits = aiop_intr_bits;
-	}
-
-	sPCIControllerEOI(CtlP);	/* clear EOI if warm init */
-	/* Init AIOPs */
-	CtlP->NumAiop = 0;
-	for (i = 0; i < AiopIOListSize; i++) {
-		io = AiopIOList[i];
-		CtlP->AiopIO[i] = (WordIO_t) io;
-		CtlP->AiopIntChanIO[i] = io + _INT_CHAN;
-
-		CtlP->AiopID[i] = sReadAiopID(io);	/* read AIOP ID */
-		if (CtlP->AiopID[i] == AIOPID_NULL)	/* if AIOP does not exist */
-			break;	/* done looking for AIOPs */
-
-		CtlP->AiopNumChan[i] = sReadAiopNumChan((WordIO_t) io);	/* num channels in AIOP */
-		sOutW((WordIO_t) io + _INDX_ADDR, _CLK_PRE);	/* clock prescaler */
-		sOutB(io + _INDX_DATA, sClockPrescale);
-		CtlP->NumAiop++;	/* bump count of AIOPs */
-	}
-
-	if (CtlP->NumAiop == 0)
-		return (-1);
-	else
-		return (CtlP->NumAiop);
-}
-
-/***************************************************************************
-Function: sReadAiopID
-Purpose:  Read the AIOP idenfication number directly from an AIOP.
-Call:     sReadAiopID(io)
-          ByteIO_t io: AIOP base I/O address
-Return:   int: Flag AIOPID_XXXX if a valid AIOP is found, where X
-                 is replace by an identifying number.
-          Flag AIOPID_NULL if no valid AIOP is found
-Warnings: No context switches are allowed while executing this function.
-
-*/
-static int sReadAiopID(ByteIO_t io)
-{
-	Byte_t AiopID;		/* ID byte from AIOP */
-
-	sOutB(io + _CMD_REG, RESET_ALL);	/* reset AIOP */
-	sOutB(io + _CMD_REG, 0x0);
-	AiopID = sInW(io + _CHN_STAT0) & 0x07;
-	if (AiopID == 0x06)
-		return (1);
-	else			/* AIOP does not exist */
-		return (-1);
-}
-
-/***************************************************************************
-Function: sReadAiopNumChan
-Purpose:  Read the number of channels available in an AIOP directly from
-          an AIOP.
-Call:     sReadAiopNumChan(io)
-          WordIO_t io: AIOP base I/O address
-Return:   int: The number of channels available
-Comments: The number of channels is determined by write/reads from identical
-          offsets within the SRAM address spaces for channels 0 and 4.
-          If the channel 4 space is mirrored to channel 0 it is a 4 channel
-          AIOP, otherwise it is an 8 channel.
-Warnings: No context switches are allowed while executing this function.
-*/
-static int sReadAiopNumChan(WordIO_t io)
-{
-	Word_t x;
-	static Byte_t R[4] = { 0x00, 0x00, 0x34, 0x12 };
-
-	/* write to chan 0 SRAM */
-	out32((DWordIO_t) io + _INDX_ADDR, R);
-	sOutW(io + _INDX_ADDR, 0);	/* read from SRAM, chan 0 */
-	x = sInW(io + _INDX_DATA);
-	sOutW(io + _INDX_ADDR, 0x4000);	/* read from SRAM, chan 4 */
-	if (x != sInW(io + _INDX_DATA))	/* if different must be 8 chan */
-		return (8);
-	else
-		return (4);
-}
-
-/***************************************************************************
-Function: sInitChan
-Purpose:  Initialization of a channel and channel structure
-Call:     sInitChan(CtlP,ChP,AiopNum,ChanNum)
-          CONTROLLER_T *CtlP; Ptr to controller structure
-          CHANNEL_T *ChP; Ptr to channel structure
-          int AiopNum; AIOP number within controller
-          int ChanNum; Channel number within AIOP
-Return:   int: 1 if initialization succeeded, 0 if it fails because channel
-               number exceeds number of channels available in AIOP.
-Comments: This function must be called before a channel can be used.
-Warnings: No range checking on any of the parameters is done.
-
-          No context switches are allowed while executing this function.
-*/
-static int sInitChan(CONTROLLER_T * CtlP, CHANNEL_T * ChP, int AiopNum,
-		     int ChanNum)
-{
-	int i;
-	WordIO_t AiopIO;
-	WordIO_t ChIOOff;
-	Byte_t *ChR;
-	Word_t ChOff;
-	static Byte_t R[4];
-	int brd9600;
-
-	if (ChanNum >= CtlP->AiopNumChan[AiopNum])
-		return 0;	/* exceeds num chans in AIOP */
-
-	/* Channel, AIOP, and controller identifiers */
-	ChP->CtlP = CtlP;
-	ChP->ChanID = CtlP->AiopID[AiopNum];
-	ChP->AiopNum = AiopNum;
-	ChP->ChanNum = ChanNum;
-
-	/* Global direct addresses */
-	AiopIO = CtlP->AiopIO[AiopNum];
-	ChP->Cmd = (ByteIO_t) AiopIO + _CMD_REG;
-	ChP->IntChan = (ByteIO_t) AiopIO + _INT_CHAN;
-	ChP->IntMask = (ByteIO_t) AiopIO + _INT_MASK;
-	ChP->IndexAddr = (DWordIO_t) AiopIO + _INDX_ADDR;
-	ChP->IndexData = AiopIO + _INDX_DATA;
-
-	/* Channel direct addresses */
-	ChIOOff = AiopIO + ChP->ChanNum * 2;
-	ChP->TxRxData = ChIOOff + _TD0;
-	ChP->ChanStat = ChIOOff + _CHN_STAT0;
-	ChP->TxRxCount = ChIOOff + _FIFO_CNT0;
-	ChP->IntID = (ByteIO_t) AiopIO + ChP->ChanNum + _INT_ID0;
-
-	/* Initialize the channel from the RData array */
-	for (i = 0; i < RDATASIZE; i += 4) {
-		R[0] = RData[i];
-		R[1] = RData[i + 1] + 0x10 * ChanNum;
-		R[2] = RData[i + 2];
-		R[3] = RData[i + 3];
-		out32(ChP->IndexAddr, R);
-	}
-
-	ChR = ChP->R;
-	for (i = 0; i < RREGDATASIZE; i += 4) {
-		ChR[i] = RRegData[i];
-		ChR[i + 1] = RRegData[i + 1] + 0x10 * ChanNum;
-		ChR[i + 2] = RRegData[i + 2];
-		ChR[i + 3] = RRegData[i + 3];
-	}
-
-	/* Indexed registers */
-	ChOff = (Word_t) ChanNum *0x1000;
-
-	if (sClockPrescale == 0x14)
-		brd9600 = 47;
-	else
-		brd9600 = 23;
-
-	ChP->BaudDiv[0] = (Byte_t) (ChOff + _BAUD);
-	ChP->BaudDiv[1] = (Byte_t) ((ChOff + _BAUD) >> 8);
-	ChP->BaudDiv[2] = (Byte_t) brd9600;
-	ChP->BaudDiv[3] = (Byte_t) (brd9600 >> 8);
-	out32(ChP->IndexAddr, ChP->BaudDiv);
-
-	ChP->TxControl[0] = (Byte_t) (ChOff + _TX_CTRL);
-	ChP->TxControl[1] = (Byte_t) ((ChOff + _TX_CTRL) >> 8);
-	ChP->TxControl[2] = 0;
-	ChP->TxControl[3] = 0;
-	out32(ChP->IndexAddr, ChP->TxControl);
-
-	ChP->RxControl[0] = (Byte_t) (ChOff + _RX_CTRL);
-	ChP->RxControl[1] = (Byte_t) ((ChOff + _RX_CTRL) >> 8);
-	ChP->RxControl[2] = 0;
-	ChP->RxControl[3] = 0;
-	out32(ChP->IndexAddr, ChP->RxControl);
-
-	ChP->TxEnables[0] = (Byte_t) (ChOff + _TX_ENBLS);
-	ChP->TxEnables[1] = (Byte_t) ((ChOff + _TX_ENBLS) >> 8);
-	ChP->TxEnables[2] = 0;
-	ChP->TxEnables[3] = 0;
-	out32(ChP->IndexAddr, ChP->TxEnables);
-
-	ChP->TxCompare[0] = (Byte_t) (ChOff + _TXCMP1);
-	ChP->TxCompare[1] = (Byte_t) ((ChOff + _TXCMP1) >> 8);
-	ChP->TxCompare[2] = 0;
-	ChP->TxCompare[3] = 0;
-	out32(ChP->IndexAddr, ChP->TxCompare);
-
-	ChP->TxReplace1[0] = (Byte_t) (ChOff + _TXREP1B1);
-	ChP->TxReplace1[1] = (Byte_t) ((ChOff + _TXREP1B1) >> 8);
-	ChP->TxReplace1[2] = 0;
-	ChP->TxReplace1[3] = 0;
-	out32(ChP->IndexAddr, ChP->TxReplace1);
-
-	ChP->TxReplace2[0] = (Byte_t) (ChOff + _TXREP2);
-	ChP->TxReplace2[1] = (Byte_t) ((ChOff + _TXREP2) >> 8);
-	ChP->TxReplace2[2] = 0;
-	ChP->TxReplace2[3] = 0;
-	out32(ChP->IndexAddr, ChP->TxReplace2);
-
-	ChP->TxFIFOPtrs = ChOff + _TXF_OUTP;
-	ChP->TxFIFO = ChOff + _TX_FIFO;
-
-	sOutB(ChP->Cmd, (Byte_t) ChanNum | RESTXFCNT);	/* apply reset Tx FIFO count */
-	sOutB(ChP->Cmd, (Byte_t) ChanNum);	/* remove reset Tx FIFO count */
-	sOutW((WordIO_t) ChP->IndexAddr, ChP->TxFIFOPtrs);	/* clear Tx in/out ptrs */
-	sOutW(ChP->IndexData, 0);
-	ChP->RxFIFOPtrs = ChOff + _RXF_OUTP;
-	ChP->RxFIFO = ChOff + _RX_FIFO;
-
-	sOutB(ChP->Cmd, (Byte_t) ChanNum | RESRXFCNT);	/* apply reset Rx FIFO count */
-	sOutB(ChP->Cmd, (Byte_t) ChanNum);	/* remove reset Rx FIFO count */
-	sOutW((WordIO_t) ChP->IndexAddr, ChP->RxFIFOPtrs);	/* clear Rx out ptr */
-	sOutW(ChP->IndexData, 0);
-	sOutW((WordIO_t) ChP->IndexAddr, ChP->RxFIFOPtrs + 2);	/* clear Rx in ptr */
-	sOutW(ChP->IndexData, 0);
-	ChP->TxPrioCnt = ChOff + _TXP_CNT;
-	sOutW((WordIO_t) ChP->IndexAddr, ChP->TxPrioCnt);
-	sOutB(ChP->IndexData, 0);
-	ChP->TxPrioPtr = ChOff + _TXP_PNTR;
-	sOutW((WordIO_t) ChP->IndexAddr, ChP->TxPrioPtr);
-	sOutB(ChP->IndexData, 0);
-	ChP->TxPrioBuf = ChOff + _TXP_BUF;
-	sEnRxProcessor(ChP);	/* start the Rx processor */
-
-	return 1;
-}
-
-/***************************************************************************
-Function: sStopRxProcessor
-Purpose:  Stop the receive processor from processing a channel.
-Call:     sStopRxProcessor(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-
-Comments: The receive processor can be started again with sStartRxProcessor().
-          This function causes the receive processor to skip over the
-          stopped channel.  It does not stop it from processing other channels.
-
-Warnings: No context switches are allowed while executing this function.
-
-          Do not leave the receive processor stopped for more than one
-          character time.
-
-          After calling this function a delay of 4 uS is required to ensure
-          that the receive processor is no longer processing this channel.
-*/
-static void sStopRxProcessor(CHANNEL_T * ChP)
-{
-	Byte_t R[4];
-
-	R[0] = ChP->R[0];
-	R[1] = ChP->R[1];
-	R[2] = 0x0a;
-	R[3] = ChP->R[3];
-	out32(ChP->IndexAddr, R);
-}
-
-/***************************************************************************
-Function: sFlushRxFIFO
-Purpose:  Flush the Rx FIFO
-Call:     sFlushRxFIFO(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-Return:   void
-Comments: To prevent data from being enqueued or dequeued in the Tx FIFO
-          while it is being flushed the receive processor is stopped
-          and the transmitter is disabled.  After these operations a
-          4 uS delay is done before clearing the pointers to allow
-          the receive processor to stop.  These items are handled inside
-          this function.
-Warnings: No context switches are allowed while executing this function.
-*/
-static void sFlushRxFIFO(CHANNEL_T * ChP)
-{
-	int i;
-	Byte_t Ch;		/* channel number within AIOP */
-	int RxFIFOEnabled;	/* 1 if Rx FIFO enabled */
-
-	if (sGetRxCnt(ChP) == 0)	/* Rx FIFO empty */
-		return;		/* don't need to flush */
-
-	RxFIFOEnabled = 0;
-	if (ChP->R[0x32] == 0x08) {	/* Rx FIFO is enabled */
-		RxFIFOEnabled = 1;
-		sDisRxFIFO(ChP);	/* disable it */
-		for (i = 0; i < 2000 / 200; i++)	/* delay 2 uS to allow proc to disable FIFO */
-			sInB(ChP->IntChan);	/* depends on bus i/o timing */
-	}
-	sGetChanStatus(ChP);	/* clear any pending Rx errors in chan stat */
-	Ch = (Byte_t) sGetChanNum(ChP);
-	sOutB(ChP->Cmd, Ch | RESRXFCNT);	/* apply reset Rx FIFO count */
-	sOutB(ChP->Cmd, Ch);	/* remove reset Rx FIFO count */
-	sOutW((WordIO_t) ChP->IndexAddr, ChP->RxFIFOPtrs);	/* clear Rx out ptr */
-	sOutW(ChP->IndexData, 0);
-	sOutW((WordIO_t) ChP->IndexAddr, ChP->RxFIFOPtrs + 2);	/* clear Rx in ptr */
-	sOutW(ChP->IndexData, 0);
-	if (RxFIFOEnabled)
-		sEnRxFIFO(ChP);	/* enable Rx FIFO */
-}
-
-/***************************************************************************
-Function: sFlushTxFIFO
-Purpose:  Flush the Tx FIFO
-Call:     sFlushTxFIFO(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-Return:   void
-Comments: To prevent data from being enqueued or dequeued in the Tx FIFO
-          while it is being flushed the receive processor is stopped
-          and the transmitter is disabled.  After these operations a
-          4 uS delay is done before clearing the pointers to allow
-          the receive processor to stop.  These items are handled inside
-          this function.
-Warnings: No context switches are allowed while executing this function.
-*/
-static void sFlushTxFIFO(CHANNEL_T * ChP)
-{
-	int i;
-	Byte_t Ch;		/* channel number within AIOP */
-	int TxEnabled;		/* 1 if transmitter enabled */
-
-	if (sGetTxCnt(ChP) == 0)	/* Tx FIFO empty */
-		return;		/* don't need to flush */
-
-	TxEnabled = 0;
-	if (ChP->TxControl[3] & TX_ENABLE) {
-		TxEnabled = 1;
-		sDisTransmit(ChP);	/* disable transmitter */
-	}
-	sStopRxProcessor(ChP);	/* stop Rx processor */
-	for (i = 0; i < 4000 / 200; i++)	/* delay 4 uS to allow proc to stop */
-		sInB(ChP->IntChan);	/* depends on bus i/o timing */
-	Ch = (Byte_t) sGetChanNum(ChP);
-	sOutB(ChP->Cmd, Ch | RESTXFCNT);	/* apply reset Tx FIFO count */
-	sOutB(ChP->Cmd, Ch);	/* remove reset Tx FIFO count */
-	sOutW((WordIO_t) ChP->IndexAddr, ChP->TxFIFOPtrs);	/* clear Tx in/out ptrs */
-	sOutW(ChP->IndexData, 0);
-	if (TxEnabled)
-		sEnTransmit(ChP);	/* enable transmitter */
-	sStartRxProcessor(ChP);	/* restart Rx processor */
-}
-
-/***************************************************************************
-Function: sWriteTxPrioByte
-Purpose:  Write a byte of priority transmit data to a channel
-Call:     sWriteTxPrioByte(ChP,Data)
-          CHANNEL_T *ChP; Ptr to channel structure
-          Byte_t Data; The transmit data byte
-
-Return:   int: 1 if the bytes is successfully written, otherwise 0.
-
-Comments: The priority byte is transmitted before any data in the Tx FIFO.
-
-Warnings: No context switches are allowed while executing this function.
-*/
-static int sWriteTxPrioByte(CHANNEL_T * ChP, Byte_t Data)
-{
-	Byte_t DWBuf[4];	/* buffer for double word writes */
-	Word_t *WordPtr;	/* must be far because Win SS != DS */
-	register DWordIO_t IndexAddr;
-
-	if (sGetTxCnt(ChP) > 1) {	/* write it to Tx priority buffer */
-		IndexAddr = ChP->IndexAddr;
-		sOutW((WordIO_t) IndexAddr, ChP->TxPrioCnt);	/* get priority buffer status */
-		if (sInB((ByteIO_t) ChP->IndexData) & PRI_PEND)	/* priority buffer busy */
-			return (0);	/* nothing sent */
-
-		WordPtr = (Word_t *) (&DWBuf[0]);
-		*WordPtr = ChP->TxPrioBuf;	/* data byte address */
-
-		DWBuf[2] = Data;	/* data byte value */
-		out32(IndexAddr, DWBuf);	/* write it out */
-
-		*WordPtr = ChP->TxPrioCnt;	/* Tx priority count address */
-
-		DWBuf[2] = PRI_PEND + 1;	/* indicate 1 byte pending */
-		DWBuf[3] = 0;	/* priority buffer pointer */
-		out32(IndexAddr, DWBuf);	/* write it out */
-	} else {		/* write it to Tx FIFO */
-
-		sWriteTxByte(sGetTxRxDataIO(ChP), Data);
-	}
-	return (1);		/* 1 byte sent */
-}
-
-/***************************************************************************
-Function: sEnInterrupts
-Purpose:  Enable one or more interrupts for a channel
-Call:     sEnInterrupts(ChP,Flags)
-          CHANNEL_T *ChP; Ptr to channel structure
-          Word_t Flags: Interrupt enable flags, can be any combination
-             of the following flags:
-                TXINT_EN:   Interrupt on Tx FIFO empty
-                RXINT_EN:   Interrupt on Rx FIFO at trigger level (see
-                            sSetRxTrigger())
-                SRCINT_EN:  Interrupt on SRC (Special Rx Condition)
-                MCINT_EN:   Interrupt on modem input change
-                CHANINT_EN: Allow channel interrupt signal to the AIOP's
-                            Interrupt Channel Register.
-Return:   void
-Comments: If an interrupt enable flag is set in Flags, that interrupt will be
-          enabled.  If an interrupt enable flag is not set in Flags, that
-          interrupt will not be changed.  Interrupts can be disabled with
-          function sDisInterrupts().
-
-          This function sets the appropriate bit for the channel in the AIOP's
-          Interrupt Mask Register if the CHANINT_EN flag is set.  This allows
-          this channel's bit to be set in the AIOP's Interrupt Channel Register.
-
-          Interrupts must also be globally enabled before channel interrupts
-          will be passed on to the host.  This is done with function
-          sEnGlobalInt().
-
-          In some cases it may be desirable to disable interrupts globally but
-          enable channel interrupts.  This would allow the global interrupt
-          status register to be used to determine which AIOPs need service.
-*/
-static void sEnInterrupts(CHANNEL_T * ChP, Word_t Flags)
-{
-	Byte_t Mask;		/* Interrupt Mask Register */
-
-	ChP->RxControl[2] |=
-	    ((Byte_t) Flags & (RXINT_EN | SRCINT_EN | MCINT_EN));
-
-	out32(ChP->IndexAddr, ChP->RxControl);
-
-	ChP->TxControl[2] |= ((Byte_t) Flags & TXINT_EN);
-
-	out32(ChP->IndexAddr, ChP->TxControl);
-
-	if (Flags & CHANINT_EN) {
-		Mask = sInB(ChP->IntMask) | sBitMapSetTbl[ChP->ChanNum];
-		sOutB(ChP->IntMask, Mask);
-	}
-}
-
-/***************************************************************************
-Function: sDisInterrupts
-Purpose:  Disable one or more interrupts for a channel
-Call:     sDisInterrupts(ChP,Flags)
-          CHANNEL_T *ChP; Ptr to channel structure
-          Word_t Flags: Interrupt flags, can be any combination
-             of the following flags:
-                TXINT_EN:   Interrupt on Tx FIFO empty
-                RXINT_EN:   Interrupt on Rx FIFO at trigger level (see
-                            sSetRxTrigger())
-                SRCINT_EN:  Interrupt on SRC (Special Rx Condition)
-                MCINT_EN:   Interrupt on modem input change
-                CHANINT_EN: Disable channel interrupt signal to the
-                            AIOP's Interrupt Channel Register.
-Return:   void
-Comments: If an interrupt flag is set in Flags, that interrupt will be
-          disabled.  If an interrupt flag is not set in Flags, that
-          interrupt will not be changed.  Interrupts can be enabled with
-          function sEnInterrupts().
-
-          This function clears the appropriate bit for the channel in the AIOP's
-          Interrupt Mask Register if the CHANINT_EN flag is set.  This blocks
-          this channel's bit from being set in the AIOP's Interrupt Channel
-          Register.
-*/
-static void sDisInterrupts(CHANNEL_T * ChP, Word_t Flags)
-{
-	Byte_t Mask;		/* Interrupt Mask Register */
-
-	ChP->RxControl[2] &=
-	    ~((Byte_t) Flags & (RXINT_EN | SRCINT_EN | MCINT_EN));
-	out32(ChP->IndexAddr, ChP->RxControl);
-	ChP->TxControl[2] &= ~((Byte_t) Flags & TXINT_EN);
-	out32(ChP->IndexAddr, ChP->TxControl);
-
-	if (Flags & CHANINT_EN) {
-		Mask = sInB(ChP->IntMask) & sBitMapClrTbl[ChP->ChanNum];
-		sOutB(ChP->IntMask, Mask);
-	}
-}
-
-static void sSetInterfaceMode(CHANNEL_T * ChP, Byte_t mode)
-{
-	sOutB(ChP->CtlP->AiopIO[2], (mode & 0x18) | ChP->ChanNum);
-}
-
-/*
- *  Not an official SSCI function, but how to reset RocketModems.
- *  ISA bus version
- */
-static void sModemReset(CONTROLLER_T * CtlP, int chan, int on)
-{
-	ByteIO_t addr;
-	Byte_t val;
-
-	addr = CtlP->AiopIO[0] + 0x400;
-	val = sInB(CtlP->MReg3IO);
-	/* if AIOP[1] is not enabled, enable it */
-	if ((val & 2) == 0) {
-		val = sInB(CtlP->MReg2IO);
-		sOutB(CtlP->MReg2IO, (val & 0xfc) | (1 & 0x03));
-		sOutB(CtlP->MBaseIO, (unsigned char) (addr >> 6));
-	}
-
-	sEnAiop(CtlP, 1);
-	if (!on)
-		addr += 8;
-	sOutB(addr + chan, 0);	/* apply or remove reset */
-	sDisAiop(CtlP, 1);
-}
-
-/*
- *  Not an official SSCI function, but how to reset RocketModems.
- *  PCI bus version
- */
-static void sPCIModemReset(CONTROLLER_T * CtlP, int chan, int on)
-{
-	ByteIO_t addr;
-
-	addr = CtlP->AiopIO[0] + 0x40;	/* 2nd AIOP */
-	if (!on)
-		addr += 8;
-	sOutB(addr + chan, 0);	/* apply or remove reset */
-}
-
-/*  Resets the speaker controller on RocketModem II and III devices */
-static void rmSpeakerReset(CONTROLLER_T * CtlP, unsigned long model)
-{
-	ByteIO_t addr;
-
-	/* RocketModem II speaker control is at the 8th port location of offset 0x40 */
-	if ((model == MODEL_RP4M) || (model == MODEL_RP6M)) {
-		addr = CtlP->AiopIO[0] + 0x4F;
-		sOutB(addr, 0);
-	}
-
-	/* RocketModem III speaker control is at the 1st port location of offset 0x80 */
-	if ((model == MODEL_UPCI_RM3_8PORT)
-	    || (model == MODEL_UPCI_RM3_4PORT)) {
-		addr = CtlP->AiopIO[0] + 0x88;
-		sOutB(addr, 0);
-	}
-}
-
-/*  Returns the line number given the controller (board), aiop and channel number */
-static unsigned char GetLineNumber(int ctrl, int aiop, int ch)
-{
-	return lineNumbers[(ctrl << 5) | (aiop << 3) | ch];
-}
-
-/*
- *  Stores the line number associated with a given controller (board), aiop
- *  and channel number.  
- *  Returns:  The line number assigned 
- */
-static unsigned char SetLineNumber(int ctrl, int aiop, int ch)
-{
-	lineNumbers[(ctrl << 5) | (aiop << 3) | ch] = nextLineNumber++;
-	return (nextLineNumber - 1);
-}
diff --git a/drivers/char/rocket.h b/drivers/char/rocket.h
deleted file mode 100644
index ec863f35f1a9..000000000000
--- a/drivers/char/rocket.h
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
- * rocket.h --- the exported interface of the rocket driver to its configuration program.
- *
- * Written by Theodore Ts'o, Copyright 1997.
- * Copyright 1997 Comtrol Corporation. 
- *
- */
-
-/*  Model Information Struct */
-typedef struct {
-	unsigned long model;
-	char modelString[80];
-	unsigned long numPorts;
-	int loadrm2;
-	int startingPortNumber;
-} rocketModel_t;
-
-struct rocket_config {
-	int line;
-	int flags;
-	int closing_wait;
-	int close_delay;
-	int port;
-	int reserved[32];
-};
-
-struct rocket_ports {
-	int tty_major;
-	int callout_major;
-	rocketModel_t rocketModel[8];
-};
-
-struct rocket_version {
-	char rocket_version[32];
-	char rocket_date[32];
-	char reserved[64];
-};
-
-/*
- * Rocketport flags
- */
-/*#define ROCKET_CALLOUT_NOHUP    0x00000001 */
-#define ROCKET_FORCE_CD		0x00000002
-#define ROCKET_HUP_NOTIFY	0x00000004
-#define ROCKET_SPLIT_TERMIOS	0x00000008
-#define ROCKET_SPD_MASK		0x00000070
-#define ROCKET_SPD_HI		0x00000010	/* Use 56000 instead of 38400 bps */
-#define ROCKET_SPD_VHI		0x00000020	/* Use 115200 instead of 38400 bps */
-#define ROCKET_SPD_SHI		0x00000030	/* Use 230400 instead of 38400 bps */
-#define ROCKET_SPD_WARP	        0x00000040	/* Use 460800 instead of 38400 bps */
-#define ROCKET_SAK		0x00000080
-#define ROCKET_SESSION_LOCKOUT	0x00000100
-#define ROCKET_PGRP_LOCKOUT	0x00000200
-#define ROCKET_RTS_TOGGLE	0x00000400
-#define ROCKET_MODE_MASK        0x00003000
-#define ROCKET_MODE_RS232       0x00000000
-#define ROCKET_MODE_RS485       0x00001000
-#define ROCKET_MODE_RS422       0x00002000
-#define ROCKET_FLAGS		0x00003FFF
-
-#define ROCKET_USR_MASK 0x0071	/* Legal flags that non-privileged
-				 * users can set or reset */
-
-/*
- * For closing_wait and closing_wait2
- */
-#define ROCKET_CLOSING_WAIT_NONE	ASYNC_CLOSING_WAIT_NONE
-#define ROCKET_CLOSING_WAIT_INF		ASYNC_CLOSING_WAIT_INF
-
-/*
- * Rocketport ioctls -- "RP"
- */
-#define RCKP_GET_STRUCT		0x00525001
-#define RCKP_GET_CONFIG		0x00525002
-#define RCKP_SET_CONFIG		0x00525003
-#define RCKP_GET_PORTS		0x00525004
-#define RCKP_RESET_RM2		0x00525005
-#define RCKP_GET_VERSION	0x00525006
-
-/*  Rocketport Models */
-#define MODEL_RP32INTF        0x0001	/* RP 32 port w/external I/F   */
-#define MODEL_RP8INTF         0x0002	/* RP 8 port w/external I/F    */
-#define MODEL_RP16INTF        0x0003	/* RP 16 port w/external I/F   */
-#define MODEL_RP8OCTA         0x0005	/* RP 8 port w/octa cable      */
-#define MODEL_RP4QUAD         0x0004	/* RP 4 port w/quad cable      */
-#define MODEL_RP8J            0x0006	/* RP 8 port w/RJ11 connectors */
-#define MODEL_RP4J            0x0007	/* RP 4 port w/RJ45 connectors */
-#define MODEL_RP8SNI          0x0008	/* RP 8 port w/ DB78 SNI connector */
-#define MODEL_RP16SNI         0x0009	/* RP 16 port w/ DB78 SNI connector */
-#define MODEL_RPP4            0x000A	/* RP Plus 4 port              */
-#define MODEL_RPP8            0x000B	/* RP Plus 8 port              */
-#define MODEL_RP2_232         0x000E	/* RP Plus 2 port RS232        */
-#define MODEL_RP2_422         0x000F	/* RP Plus 2 port RS232        */
-
-/*  Rocketmodem II Models */
-#define MODEL_RP6M            0x000C	/* RM 6 port                   */
-#define MODEL_RP4M            0x000D	/* RM 4 port                   */
-
-/* Universal PCI boards */
-#define MODEL_UPCI_RP32INTF   0x0801	/* RP UPCI 32 port w/external I/F     */
-#define MODEL_UPCI_RP8INTF    0x0802	/* RP UPCI 8 port w/external I/F      */
-#define MODEL_UPCI_RP16INTF   0x0803	/* RP UPCI 16 port w/external I/F     */
-#define MODEL_UPCI_RP8OCTA    0x0805	/* RP UPCI 8 port w/octa cable        */ 
-#define MODEL_UPCI_RM3_8PORT  0x080C	/* RP UPCI Rocketmodem III 8 port     */
-#define MODEL_UPCI_RM3_4PORT  0x080C	/* RP UPCI Rocketmodem III 4 port     */
-
-/*  Compact PCI 16 port  */
-#define MODEL_CPCI_RP16INTF   0x0903	/* RP Compact PCI 16 port w/external I/F */
-
-/* All ISA boards */
-#define MODEL_ISA             0x1000
diff --git a/drivers/char/rocket_int.h b/drivers/char/rocket_int.h
deleted file mode 100644
index 67e0f1e778a2..000000000000
--- a/drivers/char/rocket_int.h
+++ /dev/null
@@ -1,1214 +0,0 @@
-/*
- * rocket_int.h --- internal header file for rocket.c
- *
- * Written by Theodore Ts'o, Copyright 1997.
- * Copyright 1997 Comtrol Corporation.  
- * 
- */
-
-/*
- * Definition of the types in rcktpt_type
- */
-#define ROCKET_TYPE_NORMAL	0
-#define ROCKET_TYPE_MODEM	1
-#define ROCKET_TYPE_MODEMII	2
-#define ROCKET_TYPE_MODEMIII	3
-#define ROCKET_TYPE_PC104       4
-
-#include <linux/mutex.h>
-
-#include <asm/io.h>
-#include <asm/byteorder.h>
-
-typedef unsigned char Byte_t;
-typedef unsigned int ByteIO_t;
-
-typedef unsigned int Word_t;
-typedef unsigned int WordIO_t;
-
-typedef unsigned int DWordIO_t;
-
-/*
- * Note!  Normally the Linux I/O macros already take care of
- * byte-swapping the I/O instructions.  However, all accesses using
- * sOutDW aren't really 32-bit accesses, but should be handled in byte
- * order.  Hence the use of the cpu_to_le32() macro to byte-swap
- * things to no-op the byte swapping done by the big-endian outl()
- * instruction.
- */
-
-static inline void sOutB(unsigned short port, unsigned char value)
-{
-#ifdef ROCKET_DEBUG_IO
-	printk(KERN_DEBUG "sOutB(%x, %x)...\n", port, value);
-#endif
-	outb_p(value, port);
-}
-
-static inline void sOutW(unsigned short port, unsigned short value)
-{
-#ifdef ROCKET_DEBUG_IO
-	printk(KERN_DEBUG "sOutW(%x, %x)...\n", port, value);
-#endif
-	outw_p(value, port);
-}
-
-static inline void out32(unsigned short port, Byte_t *p)
-{
-	u32 value = get_unaligned_le32(p);
-#ifdef ROCKET_DEBUG_IO
-	printk(KERN_DEBUG "out32(%x, %lx)...\n", port, value);
-#endif
-	outl_p(value, port);
-}
-
-static inline unsigned char sInB(unsigned short port)
-{
-	return inb_p(port);
-}
-
-static inline unsigned short sInW(unsigned short port)
-{
-	return inw_p(port);
-}
-
-/* This is used to move arrays of bytes so byte swapping isn't appropriate. */
-#define sOutStrW(port, addr, count) if (count) outsw(port, addr, count)
-#define sInStrW(port, addr, count) if (count) insw(port, addr, count)
-
-#define CTL_SIZE 8
-#define AIOP_CTL_SIZE 4
-#define CHAN_AIOP_SIZE 8
-#define MAX_PORTS_PER_AIOP 8
-#define MAX_AIOPS_PER_BOARD 4
-#define MAX_PORTS_PER_BOARD 32
-
-/* Bus type ID */
-#define	isISA	0
-#define	isPCI	1
-#define	isMC	2
-
-/* Controller ID numbers */
-#define CTLID_NULL  -1		/* no controller exists */
-#define CTLID_0001  0x0001	/* controller release 1 */
-
-/* AIOP ID numbers, identifies AIOP type implementing channel */
-#define AIOPID_NULL -1		/* no AIOP or channel exists */
-#define AIOPID_0001 0x0001	/* AIOP release 1 */
-
-/************************************************************************
- Global Register Offsets - Direct Access - Fixed values
-************************************************************************/
-
-#define _CMD_REG   0x38		/* Command Register            8    Write */
-#define _INT_CHAN  0x39		/* Interrupt Channel Register  8    Read */
-#define _INT_MASK  0x3A		/* Interrupt Mask Register     8    Read / Write */
-#define _UNUSED    0x3B		/* Unused                      8 */
-#define _INDX_ADDR 0x3C		/* Index Register Address      16   Write */
-#define _INDX_DATA 0x3E		/* Index Register Data         8/16 Read / Write */
-
-/************************************************************************
- Channel Register Offsets for 1st channel in AIOP - Direct Access
-************************************************************************/
-#define _TD0       0x00		/* Transmit Data               16   Write */
-#define _RD0       0x00		/* Receive Data                16   Read */
-#define _CHN_STAT0 0x20		/* Channel Status              8/16 Read / Write */
-#define _FIFO_CNT0 0x10		/* Transmit/Receive FIFO Count 16   Read */
-#define _INT_ID0   0x30		/* Interrupt Identification    8    Read */
-
-/************************************************************************
- Tx Control Register Offsets - Indexed - External - Fixed
-************************************************************************/
-#define _TX_ENBLS  0x980	/* Tx Processor Enables Register 8 Read / Write */
-#define _TXCMP1    0x988	/* Transmit Compare Value #1     8 Read / Write */
-#define _TXCMP2    0x989	/* Transmit Compare Value #2     8 Read / Write */
-#define _TXREP1B1  0x98A	/* Tx Replace Value #1 - Byte 1  8 Read / Write */
-#define _TXREP1B2  0x98B	/* Tx Replace Value #1 - Byte 2  8 Read / Write */
-#define _TXREP2    0x98C	/* Transmit Replace Value #2     8 Read / Write */
-
-/************************************************************************
-Memory Controller Register Offsets - Indexed - External - Fixed
-************************************************************************/
-#define _RX_FIFO    0x000	/* Rx FIFO */
-#define _TX_FIFO    0x800	/* Tx FIFO */
-#define _RXF_OUTP   0x990	/* Rx FIFO OUT pointer        16 Read / Write */
-#define _RXF_INP    0x992	/* Rx FIFO IN pointer         16 Read / Write */
-#define _TXF_OUTP   0x994	/* Tx FIFO OUT pointer        8  Read / Write */
-#define _TXF_INP    0x995	/* Tx FIFO IN pointer         8  Read / Write */
-#define _TXP_CNT    0x996	/* Tx Priority Count          8  Read / Write */
-#define _TXP_PNTR   0x997	/* Tx Priority Pointer        8  Read / Write */
-
-#define PRI_PEND    0x80	/* Priority data pending (bit7, Tx pri cnt) */
-#define TXFIFO_SIZE 255		/* size of Tx FIFO */
-#define RXFIFO_SIZE 1023	/* size of Rx FIFO */
-
-/************************************************************************
-Tx Priority Buffer - Indexed - External - Fixed
-************************************************************************/
-#define _TXP_BUF    0x9C0	/* Tx Priority Buffer  32  Bytes   Read / Write */
-#define TXP_SIZE    0x20	/* 32 bytes */
-
-/************************************************************************
-Channel Register Offsets - Indexed - Internal - Fixed
-************************************************************************/
-
-#define _TX_CTRL    0xFF0	/* Transmit Control               16  Write */
-#define _RX_CTRL    0xFF2	/* Receive Control                 8  Write */
-#define _BAUD       0xFF4	/* Baud Rate                      16  Write */
-#define _CLK_PRE    0xFF6	/* Clock Prescaler                 8  Write */
-
-#define STMBREAK   0x08		/* BREAK */
-#define STMFRAME   0x04		/* framing error */
-#define STMRCVROVR 0x02		/* receiver over run error */
-#define STMPARITY  0x01		/* parity error */
-#define STMERROR   (STMBREAK | STMFRAME | STMPARITY)
-#define STMBREAKH   0x800	/* BREAK */
-#define STMFRAMEH   0x400	/* framing error */
-#define STMRCVROVRH 0x200	/* receiver over run error */
-#define STMPARITYH  0x100	/* parity error */
-#define STMERRORH   (STMBREAKH | STMFRAMEH | STMPARITYH)
-
-#define CTS_ACT   0x20		/* CTS input asserted */
-#define DSR_ACT   0x10		/* DSR input asserted */
-#define CD_ACT    0x08		/* CD input asserted */
-#define TXFIFOMT  0x04		/* Tx FIFO is empty */
-#define TXSHRMT   0x02		/* Tx shift register is empty */
-#define RDA       0x01		/* Rx data available */
-#define DRAINED (TXFIFOMT | TXSHRMT)	/* indicates Tx is drained */
-
-#define STATMODE  0x8000	/* status mode enable bit */
-#define RXFOVERFL 0x2000	/* receive FIFO overflow */
-#define RX2MATCH  0x1000	/* receive compare byte 2 match */
-#define RX1MATCH  0x0800	/* receive compare byte 1 match */
-#define RXBREAK   0x0400	/* received BREAK */
-#define RXFRAME   0x0200	/* received framing error */
-#define RXPARITY  0x0100	/* received parity error */
-#define STATERROR (RXBREAK | RXFRAME | RXPARITY)
-
-#define CTSFC_EN  0x80		/* CTS flow control enable bit */
-#define RTSTOG_EN 0x40		/* RTS toggle enable bit */
-#define TXINT_EN  0x10		/* transmit interrupt enable */
-#define STOP2     0x08		/* enable 2 stop bits (0 = 1 stop) */
-#define PARITY_EN 0x04		/* enable parity (0 = no parity) */
-#define EVEN_PAR  0x02		/* even parity (0 = odd parity) */
-#define DATA8BIT  0x01		/* 8 bit data (0 = 7 bit data) */
-
-#define SETBREAK  0x10		/* send break condition (must clear) */
-#define LOCALLOOP 0x08		/* local loopback set for test */
-#define SET_DTR   0x04		/* assert DTR */
-#define SET_RTS   0x02		/* assert RTS */
-#define TX_ENABLE 0x01		/* enable transmitter */
-
-#define RTSFC_EN  0x40		/* RTS flow control enable */
-#define RXPROC_EN 0x20		/* receive processor enable */
-#define TRIG_NO   0x00		/* Rx FIFO trigger level 0 (no trigger) */
-#define TRIG_1    0x08		/* trigger level 1 char */
-#define TRIG_1_2  0x10		/* trigger level 1/2 */
-#define TRIG_7_8  0x18		/* trigger level 7/8 */
-#define TRIG_MASK 0x18		/* trigger level mask */
-#define SRCINT_EN 0x04		/* special Rx condition interrupt enable */
-#define RXINT_EN  0x02		/* Rx interrupt enable */
-#define MCINT_EN  0x01		/* modem change interrupt enable */
-
-#define RXF_TRIG  0x20		/* Rx FIFO trigger level interrupt */
-#define TXFIFO_MT 0x10		/* Tx FIFO empty interrupt */
-#define SRC_INT   0x08		/* special receive condition interrupt */
-#define DELTA_CD  0x04		/* CD change interrupt */
-#define DELTA_CTS 0x02		/* CTS change interrupt */
-#define DELTA_DSR 0x01		/* DSR change interrupt */
-
-#define REP1W2_EN 0x10		/* replace byte 1 with 2 bytes enable */
-#define IGN2_EN   0x08		/* ignore byte 2 enable */
-#define IGN1_EN   0x04		/* ignore byte 1 enable */
-#define COMP2_EN  0x02		/* compare byte 2 enable */
-#define COMP1_EN  0x01		/* compare byte 1 enable */
-
-#define RESET_ALL 0x80		/* reset AIOP (all channels) */
-#define TXOVERIDE 0x40		/* Transmit software off override */
-#define RESETUART 0x20		/* reset channel's UART */
-#define RESTXFCNT 0x10		/* reset channel's Tx FIFO count register */
-#define RESRXFCNT 0x08		/* reset channel's Rx FIFO count register */
-
-#define INTSTAT0  0x01		/* AIOP 0 interrupt status */
-#define INTSTAT1  0x02		/* AIOP 1 interrupt status */
-#define INTSTAT2  0x04		/* AIOP 2 interrupt status */
-#define INTSTAT3  0x08		/* AIOP 3 interrupt status */
-
-#define INTR_EN   0x08		/* allow interrupts to host */
-#define INT_STROB 0x04		/* strobe and clear interrupt line (EOI) */
-
-/**************************************************************************
- MUDBAC remapped for PCI
-**************************************************************************/
-
-#define _CFG_INT_PCI  0x40
-#define _PCI_INT_FUNC 0x3A
-
-#define PCI_STROB 0x2000	/* bit 13 of int aiop register */
-#define INTR_EN_PCI   0x0010	/* allow interrupts to host */
-
-/*
- * Definitions for Universal PCI board registers
- */
-#define _PCI_9030_INT_CTRL	0x4c          /* Offsets from BAR1 */
-#define _PCI_9030_GPIO_CTRL	0x54
-#define PCI_INT_CTRL_AIOP	0x0001
-#define PCI_GPIO_CTRL_8PORT	0x4000
-#define _PCI_9030_RING_IND	0xc0          /* Offsets from BAR1 */
-
-#define CHAN3_EN  0x08		/* enable AIOP 3 */
-#define CHAN2_EN  0x04		/* enable AIOP 2 */
-#define CHAN1_EN  0x02		/* enable AIOP 1 */
-#define CHAN0_EN  0x01		/* enable AIOP 0 */
-#define FREQ_DIS  0x00
-#define FREQ_274HZ 0x60
-#define FREQ_137HZ 0x50
-#define FREQ_69HZ  0x40
-#define FREQ_34HZ  0x30
-#define FREQ_17HZ  0x20
-#define FREQ_9HZ   0x10
-#define PERIODIC_ONLY 0x80	/* only PERIODIC interrupt */
-
-#define CHANINT_EN 0x0100	/* flags to enable/disable channel ints */
-
-#define RDATASIZE 72
-#define RREGDATASIZE 52
-
-/*
- * AIOP interrupt bits for ISA/PCI boards and UPCI boards.
- */
-#define AIOP_INTR_BIT_0		0x0001
-#define AIOP_INTR_BIT_1		0x0002
-#define AIOP_INTR_BIT_2		0x0004
-#define AIOP_INTR_BIT_3		0x0008
-
-#define AIOP_INTR_BITS ( \
-	AIOP_INTR_BIT_0 \
-	| AIOP_INTR_BIT_1 \
-	| AIOP_INTR_BIT_2 \
-	| AIOP_INTR_BIT_3)
-
-#define UPCI_AIOP_INTR_BIT_0	0x0004
-#define UPCI_AIOP_INTR_BIT_1	0x0020
-#define UPCI_AIOP_INTR_BIT_2	0x0100
-#define UPCI_AIOP_INTR_BIT_3	0x0800
-
-#define UPCI_AIOP_INTR_BITS ( \
-	UPCI_AIOP_INTR_BIT_0 \
-	| UPCI_AIOP_INTR_BIT_1 \
-	| UPCI_AIOP_INTR_BIT_2 \
-	| UPCI_AIOP_INTR_BIT_3)
-
-/* Controller level information structure */
-typedef struct {
-	int CtlID;
-	int CtlNum;
-	int BusType;
-	int boardType;
-	int isUPCI;
-	WordIO_t PCIIO;
-	WordIO_t PCIIO2;
-	ByteIO_t MBaseIO;
-	ByteIO_t MReg1IO;
-	ByteIO_t MReg2IO;
-	ByteIO_t MReg3IO;
-	Byte_t MReg2;
-	Byte_t MReg3;
-	int NumAiop;
-	int AltChanRingIndicator;
-	ByteIO_t UPCIRingInd;
-	WordIO_t AiopIO[AIOP_CTL_SIZE];
-	ByteIO_t AiopIntChanIO[AIOP_CTL_SIZE];
-	int AiopID[AIOP_CTL_SIZE];
-	int AiopNumChan[AIOP_CTL_SIZE];
-	Word_t *AiopIntrBits;
-} CONTROLLER_T;
-
-typedef CONTROLLER_T CONTROLLER_t;
-
-/* Channel level information structure */
-typedef struct {
-	CONTROLLER_T *CtlP;
-	int AiopNum;
-	int ChanID;
-	int ChanNum;
-	int rtsToggle;
-
-	ByteIO_t Cmd;
-	ByteIO_t IntChan;
-	ByteIO_t IntMask;
-	DWordIO_t IndexAddr;
-	WordIO_t IndexData;
-
-	WordIO_t TxRxData;
-	WordIO_t ChanStat;
-	WordIO_t TxRxCount;
-	ByteIO_t IntID;
-
-	Word_t TxFIFO;
-	Word_t TxFIFOPtrs;
-	Word_t RxFIFO;
-	Word_t RxFIFOPtrs;
-	Word_t TxPrioCnt;
-	Word_t TxPrioPtr;
-	Word_t TxPrioBuf;
-
-	Byte_t R[RREGDATASIZE];
-
-	Byte_t BaudDiv[4];
-	Byte_t TxControl[4];
-	Byte_t RxControl[4];
-	Byte_t TxEnables[4];
-	Byte_t TxCompare[4];
-	Byte_t TxReplace1[4];
-	Byte_t TxReplace2[4];
-} CHANNEL_T;
-
-typedef CHANNEL_T CHANNEL_t;
-typedef CHANNEL_T *CHANPTR_T;
-
-#define InterfaceModeRS232  0x00
-#define InterfaceModeRS422  0x08
-#define InterfaceModeRS485  0x10
-#define InterfaceModeRS232T 0x18
-
-/***************************************************************************
-Function: sClrBreak
-Purpose:  Stop sending a transmit BREAK signal
-Call:     sClrBreak(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sClrBreak(ChP) \
-do { \
-   (ChP)->TxControl[3] &= ~SETBREAK; \
-   out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sClrDTR
-Purpose:  Clr the DTR output
-Call:     sClrDTR(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sClrDTR(ChP) \
-do { \
-   (ChP)->TxControl[3] &= ~SET_DTR; \
-   out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sClrRTS
-Purpose:  Clr the RTS output
-Call:     sClrRTS(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sClrRTS(ChP) \
-do { \
-   if ((ChP)->rtsToggle) break; \
-   (ChP)->TxControl[3] &= ~SET_RTS; \
-   out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sClrTxXOFF
-Purpose:  Clear any existing transmit software flow control off condition
-Call:     sClrTxXOFF(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sClrTxXOFF(ChP) \
-do { \
-   sOutB((ChP)->Cmd,TXOVERIDE | (Byte_t)(ChP)->ChanNum); \
-   sOutB((ChP)->Cmd,(Byte_t)(ChP)->ChanNum); \
-} while (0)
-
-/***************************************************************************
-Function: sCtlNumToCtlPtr
-Purpose:  Convert a controller number to controller structure pointer
-Call:     sCtlNumToCtlPtr(CtlNum)
-          int CtlNum; Controller number
-Return:   CONTROLLER_T *: Ptr to controller structure
-*/
-#define sCtlNumToCtlPtr(CTLNUM) &sController[CTLNUM]
-
-/***************************************************************************
-Function: sControllerEOI
-Purpose:  Strobe the MUDBAC's End Of Interrupt bit.
-Call:     sControllerEOI(CtlP)
-          CONTROLLER_T *CtlP; Ptr to controller structure
-*/
-#define sControllerEOI(CTLP) sOutB((CTLP)->MReg2IO,(CTLP)->MReg2 | INT_STROB)
-
-/***************************************************************************
-Function: sPCIControllerEOI
-Purpose:  Strobe the PCI End Of Interrupt bit.
-          For the UPCI boards, toggle the AIOP interrupt enable bit
-	  (this was taken from the Windows driver).
-Call:     sPCIControllerEOI(CtlP)
-          CONTROLLER_T *CtlP; Ptr to controller structure
-*/
-#define sPCIControllerEOI(CTLP) \
-do { \
-    if ((CTLP)->isUPCI) { \
-	Word_t w = sInW((CTLP)->PCIIO); \
-	sOutW((CTLP)->PCIIO, (w ^ PCI_INT_CTRL_AIOP)); \
-	sOutW((CTLP)->PCIIO, w); \
-    } \
-    else { \
-	sOutW((CTLP)->PCIIO, PCI_STROB); \
-    } \
-} while (0)
-
-/***************************************************************************
-Function: sDisAiop
-Purpose:  Disable I/O access to an AIOP
-Call:     sDisAiop(CltP)
-          CONTROLLER_T *CtlP; Ptr to controller structure
-          int AiopNum; Number of AIOP on controller
-*/
-#define sDisAiop(CTLP,AIOPNUM) \
-do { \
-   (CTLP)->MReg3 &= sBitMapClrTbl[AIOPNUM]; \
-   sOutB((CTLP)->MReg3IO,(CTLP)->MReg3); \
-} while (0)
-
-/***************************************************************************
-Function: sDisCTSFlowCtl
-Purpose:  Disable output flow control using CTS
-Call:     sDisCTSFlowCtl(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sDisCTSFlowCtl(ChP) \
-do { \
-   (ChP)->TxControl[2] &= ~CTSFC_EN; \
-   out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sDisIXANY
-Purpose:  Disable IXANY Software Flow Control
-Call:     sDisIXANY(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sDisIXANY(ChP) \
-do { \
-   (ChP)->R[0x0e] = 0x86; \
-   out32((ChP)->IndexAddr,&(ChP)->R[0x0c]); \
-} while (0)
-
-/***************************************************************************
-Function: DisParity
-Purpose:  Disable parity
-Call:     sDisParity(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-Comments: Function sSetParity() can be used in place of functions sEnParity(),
-          sDisParity(), sSetOddParity(), and sSetEvenParity().
-*/
-#define sDisParity(ChP) \
-do { \
-   (ChP)->TxControl[2] &= ~PARITY_EN; \
-   out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sDisRTSToggle
-Purpose:  Disable RTS toggle
-Call:     sDisRTSToggle(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sDisRTSToggle(ChP) \
-do { \
-   (ChP)->TxControl[2] &= ~RTSTOG_EN; \
-   out32((ChP)->IndexAddr,(ChP)->TxControl); \
-   (ChP)->rtsToggle = 0; \
-} while (0)
-
-/***************************************************************************
-Function: sDisRxFIFO
-Purpose:  Disable Rx FIFO
-Call:     sDisRxFIFO(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sDisRxFIFO(ChP) \
-do { \
-   (ChP)->R[0x32] = 0x0a; \
-   out32((ChP)->IndexAddr,&(ChP)->R[0x30]); \
-} while (0)
-
-/***************************************************************************
-Function: sDisRxStatusMode
-Purpose:  Disable the Rx status mode
-Call:     sDisRxStatusMode(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-Comments: This takes the channel out of the receive status mode.  All
-          subsequent reads of receive data using sReadRxWord() will return
-          two data bytes.
-*/
-#define sDisRxStatusMode(ChP) sOutW((ChP)->ChanStat,0)
-
-/***************************************************************************
-Function: sDisTransmit
-Purpose:  Disable transmit
-Call:     sDisTransmit(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-          This disables movement of Tx data from the Tx FIFO into the 1 byte
-          Tx buffer.  Therefore there could be up to a 2 byte latency
-          between the time sDisTransmit() is called and the transmit buffer
-          and transmit shift register going completely empty.
-*/
-#define sDisTransmit(ChP) \
-do { \
-   (ChP)->TxControl[3] &= ~TX_ENABLE; \
-   out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sDisTxSoftFlowCtl
-Purpose:  Disable Tx Software Flow Control
-Call:     sDisTxSoftFlowCtl(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sDisTxSoftFlowCtl(ChP) \
-do { \
-   (ChP)->R[0x06] = 0x8a; \
-   out32((ChP)->IndexAddr,&(ChP)->R[0x04]); \
-} while (0)
-
-/***************************************************************************
-Function: sEnAiop
-Purpose:  Enable I/O access to an AIOP
-Call:     sEnAiop(CltP)
-          CONTROLLER_T *CtlP; Ptr to controller structure
-          int AiopNum; Number of AIOP on controller
-*/
-#define sEnAiop(CTLP,AIOPNUM) \
-do { \
-   (CTLP)->MReg3 |= sBitMapSetTbl[AIOPNUM]; \
-   sOutB((CTLP)->MReg3IO,(CTLP)->MReg3); \
-} while (0)
-
-/***************************************************************************
-Function: sEnCTSFlowCtl
-Purpose:  Enable output flow control using CTS
-Call:     sEnCTSFlowCtl(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sEnCTSFlowCtl(ChP) \
-do { \
-   (ChP)->TxControl[2] |= CTSFC_EN; \
-   out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sEnIXANY
-Purpose:  Enable IXANY Software Flow Control
-Call:     sEnIXANY(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sEnIXANY(ChP) \
-do { \
-   (ChP)->R[0x0e] = 0x21; \
-   out32((ChP)->IndexAddr,&(ChP)->R[0x0c]); \
-} while (0)
-
-/***************************************************************************
-Function: EnParity
-Purpose:  Enable parity
-Call:     sEnParity(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-Comments: Function sSetParity() can be used in place of functions sEnParity(),
-          sDisParity(), sSetOddParity(), and sSetEvenParity().
-
-Warnings: Before enabling parity odd or even parity should be chosen using
-          functions sSetOddParity() or sSetEvenParity().
-*/
-#define sEnParity(ChP) \
-do { \
-   (ChP)->TxControl[2] |= PARITY_EN; \
-   out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sEnRTSToggle
-Purpose:  Enable RTS toggle
-Call:     sEnRTSToggle(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-Comments: This function will disable RTS flow control and clear the RTS
-          line to allow operation of RTS toggle.
-*/
-#define sEnRTSToggle(ChP) \
-do { \
-   (ChP)->RxControl[2] &= ~RTSFC_EN; \
-   out32((ChP)->IndexAddr,(ChP)->RxControl); \
-   (ChP)->TxControl[2] |= RTSTOG_EN; \
-   (ChP)->TxControl[3] &= ~SET_RTS; \
-   out32((ChP)->IndexAddr,(ChP)->TxControl); \
-   (ChP)->rtsToggle = 1; \
-} while (0)
-
-/***************************************************************************
-Function: sEnRxFIFO
-Purpose:  Enable Rx FIFO
-Call:     sEnRxFIFO(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sEnRxFIFO(ChP) \
-do { \
-   (ChP)->R[0x32] = 0x08; \
-   out32((ChP)->IndexAddr,&(ChP)->R[0x30]); \
-} while (0)
-
-/***************************************************************************
-Function: sEnRxProcessor
-Purpose:  Enable the receive processor
-Call:     sEnRxProcessor(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-Comments: This function is used to start the receive processor.  When
-          the channel is in the reset state the receive processor is not
-          running.  This is done to prevent the receive processor from
-          executing invalid microcode instructions prior to the
-          downloading of the microcode.
-
-Warnings: This function must be called after valid microcode has been
-          downloaded to the AIOP, and it must not be called before the
-          microcode has been downloaded.
-*/
-#define sEnRxProcessor(ChP) \
-do { \
-   (ChP)->RxControl[2] |= RXPROC_EN; \
-   out32((ChP)->IndexAddr,(ChP)->RxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sEnRxStatusMode
-Purpose:  Enable the Rx status mode
-Call:     sEnRxStatusMode(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-Comments: This places the channel in the receive status mode.  All subsequent
-          reads of receive data using sReadRxWord() will return a data byte
-          in the low word and a status byte in the high word.
-
-*/
-#define sEnRxStatusMode(ChP) sOutW((ChP)->ChanStat,STATMODE)
-
-/***************************************************************************
-Function: sEnTransmit
-Purpose:  Enable transmit
-Call:     sEnTransmit(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sEnTransmit(ChP) \
-do { \
-   (ChP)->TxControl[3] |= TX_ENABLE; \
-   out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sEnTxSoftFlowCtl
-Purpose:  Enable Tx Software Flow Control
-Call:     sEnTxSoftFlowCtl(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sEnTxSoftFlowCtl(ChP) \
-do { \
-   (ChP)->R[0x06] = 0xc5; \
-   out32((ChP)->IndexAddr,&(ChP)->R[0x04]); \
-} while (0)
-
-/***************************************************************************
-Function: sGetAiopIntStatus
-Purpose:  Get the AIOP interrupt status
-Call:     sGetAiopIntStatus(CtlP,AiopNum)
-          CONTROLLER_T *CtlP; Ptr to controller structure
-          int AiopNum; AIOP number
-Return:   Byte_t: The AIOP interrupt status.  Bits 0 through 7
-                         represent channels 0 through 7 respectively.  If a
-                         bit is set that channel is interrupting.
-*/
-#define sGetAiopIntStatus(CTLP,AIOPNUM) sInB((CTLP)->AiopIntChanIO[AIOPNUM])
-
-/***************************************************************************
-Function: sGetAiopNumChan
-Purpose:  Get the number of channels supported by an AIOP
-Call:     sGetAiopNumChan(CtlP,AiopNum)
-          CONTROLLER_T *CtlP; Ptr to controller structure
-          int AiopNum; AIOP number
-Return:   int: The number of channels supported by the AIOP
-*/
-#define sGetAiopNumChan(CTLP,AIOPNUM) (CTLP)->AiopNumChan[AIOPNUM]
-
-/***************************************************************************
-Function: sGetChanIntID
-Purpose:  Get a channel's interrupt identification byte
-Call:     sGetChanIntID(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-Return:   Byte_t: The channel interrupt ID.  Can be any
-             combination of the following flags:
-                RXF_TRIG:     Rx FIFO trigger level interrupt
-                TXFIFO_MT:    Tx FIFO empty interrupt
-                SRC_INT:      Special receive condition interrupt
-                DELTA_CD:     CD change interrupt
-                DELTA_CTS:    CTS change interrupt
-                DELTA_DSR:    DSR change interrupt
-*/
-#define sGetChanIntID(ChP) (sInB((ChP)->IntID) & (RXF_TRIG | TXFIFO_MT | SRC_INT | DELTA_CD | DELTA_CTS | DELTA_DSR))
-
-/***************************************************************************
-Function: sGetChanNum
-Purpose:  Get the number of a channel within an AIOP
-Call:     sGetChanNum(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-Return:   int: Channel number within AIOP, or NULLCHAN if channel does
-               not exist.
-*/
-#define sGetChanNum(ChP) (ChP)->ChanNum
-
-/***************************************************************************
-Function: sGetChanStatus
-Purpose:  Get the channel status
-Call:     sGetChanStatus(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-Return:   Word_t: The channel status.  Can be any combination of
-             the following flags:
-                LOW BYTE FLAGS
-                CTS_ACT:      CTS input asserted
-                DSR_ACT:      DSR input asserted
-                CD_ACT:       CD input asserted
-                TXFIFOMT:     Tx FIFO is empty
-                TXSHRMT:      Tx shift register is empty
-                RDA:          Rx data available
-
-                HIGH BYTE FLAGS
-                STATMODE:     status mode enable bit
-                RXFOVERFL:    receive FIFO overflow
-                RX2MATCH:     receive compare byte 2 match
-                RX1MATCH:     receive compare byte 1 match
-                RXBREAK:      received BREAK
-                RXFRAME:      received framing error
-                RXPARITY:     received parity error
-Warnings: This function will clear the high byte flags in the Channel
-          Status Register.
-*/
-#define sGetChanStatus(ChP) sInW((ChP)->ChanStat)
-
-/***************************************************************************
-Function: sGetChanStatusLo
-Purpose:  Get the low byte only of the channel status
-Call:     sGetChanStatusLo(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-Return:   Byte_t: The channel status low byte.  Can be any combination
-             of the following flags:
-                CTS_ACT:      CTS input asserted
-                DSR_ACT:      DSR input asserted
-                CD_ACT:       CD input asserted
-                TXFIFOMT:     Tx FIFO is empty
-                TXSHRMT:      Tx shift register is empty
-                RDA:          Rx data available
-*/
-#define sGetChanStatusLo(ChP) sInB((ByteIO_t)(ChP)->ChanStat)
-
-/**********************************************************************
- * Get RI status of channel
- * Defined as a function in rocket.c   -aes
- */
-#if 0
-#define sGetChanRI(ChP) ((ChP)->CtlP->AltChanRingIndicator ? \
-                          (sInB((ByteIO_t)((ChP)->ChanStat+8)) & DSR_ACT) : \
-                            (((ChP)->CtlP->boardType == ROCKET_TYPE_PC104) ? \
-                               (!(sInB((ChP)->CtlP->AiopIO[3]) & sBitMapSetTbl[(ChP)->ChanNum])) : \
-                             0))
-#endif
-
-/***************************************************************************
-Function: sGetControllerIntStatus
-Purpose:  Get the controller interrupt status
-Call:     sGetControllerIntStatus(CtlP)
-          CONTROLLER_T *CtlP; Ptr to controller structure
-Return:   Byte_t: The controller interrupt status in the lower 4
-                         bits.  Bits 0 through 3 represent AIOP's 0
-                         through 3 respectively.  If a bit is set that
-                         AIOP is interrupting.  Bits 4 through 7 will
-                         always be cleared.
-*/
-#define sGetControllerIntStatus(CTLP) (sInB((CTLP)->MReg1IO) & 0x0f)
-
-/***************************************************************************
-Function: sPCIGetControllerIntStatus
-Purpose:  Get the controller interrupt status
-Call:     sPCIGetControllerIntStatus(CtlP)
-          CONTROLLER_T *CtlP; Ptr to controller structure
-Return:   unsigned char: The controller interrupt status in the lower 4
-                         bits and bit 4.  Bits 0 through 3 represent AIOP's 0
-                         through 3 respectively. Bit 4 is set if the int 
-			 was generated from periodic. If a bit is set the
-			 AIOP is interrupting.
-*/
-#define sPCIGetControllerIntStatus(CTLP) \
-	((CTLP)->isUPCI ? \
-	  (sInW((CTLP)->PCIIO2) & UPCI_AIOP_INTR_BITS) : \
-	  ((sInW((CTLP)->PCIIO) >> 8) & AIOP_INTR_BITS))
-
-/***************************************************************************
-
-Function: sGetRxCnt
-Purpose:  Get the number of data bytes in the Rx FIFO
-Call:     sGetRxCnt(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-Return:   int: The number of data bytes in the Rx FIFO.
-Comments: Byte read of count register is required to obtain Rx count.
-
-*/
-#define sGetRxCnt(ChP) sInW((ChP)->TxRxCount)
-
-/***************************************************************************
-Function: sGetTxCnt
-Purpose:  Get the number of data bytes in the Tx FIFO
-Call:     sGetTxCnt(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-Return:   Byte_t: The number of data bytes in the Tx FIFO.
-Comments: Byte read of count register is required to obtain Tx count.
-
-*/
-#define sGetTxCnt(ChP) sInB((ByteIO_t)(ChP)->TxRxCount)
-
-/*****************************************************************************
-Function: sGetTxRxDataIO
-Purpose:  Get the I/O address of a channel's TxRx Data register
-Call:     sGetTxRxDataIO(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-Return:   WordIO_t: I/O address of a channel's TxRx Data register
-*/
-#define sGetTxRxDataIO(ChP) (ChP)->TxRxData
-
-/***************************************************************************
-Function: sInitChanDefaults
-Purpose:  Initialize a channel structure to it's default state.
-Call:     sInitChanDefaults(ChP)
-          CHANNEL_T *ChP; Ptr to the channel structure
-Comments: This function must be called once for every channel structure
-          that exists before any other SSCI calls can be made.
-
-*/
-#define sInitChanDefaults(ChP) \
-do { \
-   (ChP)->CtlP = NULLCTLPTR; \
-   (ChP)->AiopNum = NULLAIOP; \
-   (ChP)->ChanID = AIOPID_NULL; \
-   (ChP)->ChanNum = NULLCHAN; \
-} while (0)
-
-/***************************************************************************
-Function: sResetAiopByNum
-Purpose:  Reset the AIOP by number
-Call:     sResetAiopByNum(CTLP,AIOPNUM)
-	CONTROLLER_T CTLP; Ptr to controller structure
-	AIOPNUM; AIOP index 
-*/
-#define sResetAiopByNum(CTLP,AIOPNUM) \
-do { \
-   sOutB((CTLP)->AiopIO[(AIOPNUM)]+_CMD_REG,RESET_ALL); \
-   sOutB((CTLP)->AiopIO[(AIOPNUM)]+_CMD_REG,0x0); \
-} while (0)
-
-/***************************************************************************
-Function: sSendBreak
-Purpose:  Send a transmit BREAK signal
-Call:     sSendBreak(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sSendBreak(ChP) \
-do { \
-   (ChP)->TxControl[3] |= SETBREAK; \
-   out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sSetBaud
-Purpose:  Set baud rate
-Call:     sSetBaud(ChP,Divisor)
-          CHANNEL_T *ChP; Ptr to channel structure
-          Word_t Divisor; 16 bit baud rate divisor for channel
-*/
-#define sSetBaud(ChP,DIVISOR) \
-do { \
-   (ChP)->BaudDiv[2] = (Byte_t)(DIVISOR); \
-   (ChP)->BaudDiv[3] = (Byte_t)((DIVISOR) >> 8); \
-   out32((ChP)->IndexAddr,(ChP)->BaudDiv); \
-} while (0)
-
-/***************************************************************************
-Function: sSetData7
-Purpose:  Set data bits to 7
-Call:     sSetData7(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sSetData7(ChP) \
-do { \
-   (ChP)->TxControl[2] &= ~DATA8BIT; \
-   out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sSetData8
-Purpose:  Set data bits to 8
-Call:     sSetData8(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sSetData8(ChP) \
-do { \
-   (ChP)->TxControl[2] |= DATA8BIT; \
-   out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sSetDTR
-Purpose:  Set the DTR output
-Call:     sSetDTR(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sSetDTR(ChP) \
-do { \
-   (ChP)->TxControl[3] |= SET_DTR; \
-   out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sSetEvenParity
-Purpose:  Set even parity
-Call:     sSetEvenParity(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-Comments: Function sSetParity() can be used in place of functions sEnParity(),
-          sDisParity(), sSetOddParity(), and sSetEvenParity().
-
-Warnings: This function has no effect unless parity is enabled with function
-          sEnParity().
-*/
-#define sSetEvenParity(ChP) \
-do { \
-   (ChP)->TxControl[2] |= EVEN_PAR; \
-   out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sSetOddParity
-Purpose:  Set odd parity
-Call:     sSetOddParity(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-Comments: Function sSetParity() can be used in place of functions sEnParity(),
-          sDisParity(), sSetOddParity(), and sSetEvenParity().
-
-Warnings: This function has no effect unless parity is enabled with function
-          sEnParity().
-*/
-#define sSetOddParity(ChP) \
-do { \
-   (ChP)->TxControl[2] &= ~EVEN_PAR; \
-   out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sSetRTS
-Purpose:  Set the RTS output
-Call:     sSetRTS(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sSetRTS(ChP) \
-do { \
-   if ((ChP)->rtsToggle) break; \
-   (ChP)->TxControl[3] |= SET_RTS; \
-   out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sSetRxTrigger
-Purpose:  Set the Rx FIFO trigger level
-Call:     sSetRxProcessor(ChP,Level)
-          CHANNEL_T *ChP; Ptr to channel structure
-          Byte_t Level; Number of characters in Rx FIFO at which the
-             interrupt will be generated.  Can be any of the following flags:
-
-             TRIG_NO:   no trigger
-             TRIG_1:    1 character in FIFO
-             TRIG_1_2:  FIFO 1/2 full
-             TRIG_7_8:  FIFO 7/8 full
-Comments: An interrupt will be generated when the trigger level is reached
-          only if function sEnInterrupt() has been called with flag
-          RXINT_EN set.  The RXF_TRIG flag in the Interrupt Idenfification
-          register will be set whenever the trigger level is reached
-          regardless of the setting of RXINT_EN.
-
-*/
-#define sSetRxTrigger(ChP,LEVEL) \
-do { \
-   (ChP)->RxControl[2] &= ~TRIG_MASK; \
-   (ChP)->RxControl[2] |= LEVEL; \
-   out32((ChP)->IndexAddr,(ChP)->RxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sSetStop1
-Purpose:  Set stop bits to 1
-Call:     sSetStop1(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sSetStop1(ChP) \
-do { \
-   (ChP)->TxControl[2] &= ~STOP2; \
-   out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sSetStop2
-Purpose:  Set stop bits to 2
-Call:     sSetStop2(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sSetStop2(ChP) \
-do { \
-   (ChP)->TxControl[2] |= STOP2; \
-   out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sSetTxXOFFChar
-Purpose:  Set the Tx XOFF flow control character
-Call:     sSetTxXOFFChar(ChP,Ch)
-          CHANNEL_T *ChP; Ptr to channel structure
-          Byte_t Ch; The value to set the Tx XOFF character to
-*/
-#define sSetTxXOFFChar(ChP,CH) \
-do { \
-   (ChP)->R[0x07] = (CH); \
-   out32((ChP)->IndexAddr,&(ChP)->R[0x04]); \
-} while (0)
-
-/***************************************************************************
-Function: sSetTxXONChar
-Purpose:  Set the Tx XON flow control character
-Call:     sSetTxXONChar(ChP,Ch)
-          CHANNEL_T *ChP; Ptr to channel structure
-          Byte_t Ch; The value to set the Tx XON character to
-*/
-#define sSetTxXONChar(ChP,CH) \
-do { \
-   (ChP)->R[0x0b] = (CH); \
-   out32((ChP)->IndexAddr,&(ChP)->R[0x08]); \
-} while (0)
-
-/***************************************************************************
-Function: sStartRxProcessor
-Purpose:  Start a channel's receive processor
-Call:     sStartRxProcessor(ChP)
-          CHANNEL_T *ChP; Ptr to channel structure
-Comments: This function is used to start a Rx processor after it was
-          stopped with sStopRxProcessor() or sStopSWInFlowCtl().  It
-          will restart both the Rx processor and software input flow control.
-
-*/
-#define sStartRxProcessor(ChP) out32((ChP)->IndexAddr,&(ChP)->R[0])
-
-/***************************************************************************
-Function: sWriteTxByte
-Purpose:  Write a transmit data byte to a channel.
-          ByteIO_t io: Channel transmit register I/O address.  This can
-                           be obtained with sGetTxRxDataIO().
-          Byte_t Data; The transmit data byte.
-Warnings: This function writes the data byte without checking to see if
-          sMaxTxSize is exceeded in the Tx FIFO.
-*/
-#define sWriteTxByte(IO,DATA) sOutB(IO,DATA)
-
-/*
- * Begin Linux specific definitions for the Rocketport driver
- *
- * This code is Copyright Theodore Ts'o, 1995-1997
- */
-
-struct r_port {
-	int magic;
-	struct tty_port port;
-	int line;
-	int flags;		/* Don't yet match the ASY_ flags!! */
-	unsigned int board:3;
-	unsigned int aiop:2;
-	unsigned int chan:3;
-	CONTROLLER_t *ctlp;
-	CHANNEL_t channel;
-	int intmask;
-	int xmit_fifo_room;	/* room in xmit fifo */
-	unsigned char *xmit_buf;
-	int xmit_head;
-	int xmit_tail;
-	int xmit_cnt;
-	int cd_status;
-	int ignore_status_mask;
-	int read_status_mask;
-	int cps;
-
-	struct completion close_wait;	/* Not yet matching the core */
-	spinlock_t slock;
-	struct mutex write_mtx;
-};
-
-#define RPORT_MAGIC 0x525001
-
-#define NUM_BOARDS 8
-#define MAX_RP_PORTS (32*NUM_BOARDS)
-
-/*
- * The size of the xmit buffer is 1 page, or 4096 bytes
- */
-#define XMIT_BUF_SIZE 4096
-
-/* number of characters left in xmit buffer before we ask for more */
-#define WAKEUP_CHARS 256
-
-/*
- * Assigned major numbers for the Comtrol Rocketport
- */
-#define TTY_ROCKET_MAJOR	46
-#define CUA_ROCKET_MAJOR	47
-
-#ifdef PCI_VENDOR_ID_RP
-#undef PCI_VENDOR_ID_RP
-#undef PCI_DEVICE_ID_RP8OCTA
-#undef PCI_DEVICE_ID_RP8INTF
-#undef PCI_DEVICE_ID_RP16INTF
-#undef PCI_DEVICE_ID_RP32INTF
-#undef PCI_DEVICE_ID_URP8OCTA
-#undef PCI_DEVICE_ID_URP8INTF
-#undef PCI_DEVICE_ID_URP16INTF
-#undef PCI_DEVICE_ID_CRP16INTF
-#undef PCI_DEVICE_ID_URP32INTF
-#endif
-
-/*  Comtrol PCI Vendor ID */
-#define PCI_VENDOR_ID_RP		0x11fe
-
-/*  Comtrol Device ID's */
-#define PCI_DEVICE_ID_RP32INTF		0x0001	/* Rocketport 32 port w/external I/F     */
-#define PCI_DEVICE_ID_RP8INTF		0x0002	/* Rocketport 8 port w/external I/F      */
-#define PCI_DEVICE_ID_RP16INTF		0x0003	/* Rocketport 16 port w/external I/F     */
-#define PCI_DEVICE_ID_RP4QUAD		0x0004	/* Rocketport 4 port w/quad cable        */
-#define PCI_DEVICE_ID_RP8OCTA		0x0005	/* Rocketport 8 port w/octa cable        */
-#define PCI_DEVICE_ID_RP8J		0x0006	/* Rocketport 8 port w/RJ11 connectors   */
-#define PCI_DEVICE_ID_RP4J		0x0007	/* Rocketport 4 port w/RJ11 connectors   */
-#define PCI_DEVICE_ID_RP8SNI		0x0008	/* Rocketport 8 port w/ DB78 SNI (Siemens) connector */
-#define PCI_DEVICE_ID_RP16SNI		0x0009	/* Rocketport 16 port w/ DB78 SNI (Siemens) connector   */
-#define PCI_DEVICE_ID_RPP4		0x000A	/* Rocketport Plus 4 port                */
-#define PCI_DEVICE_ID_RPP8		0x000B	/* Rocketport Plus 8 port                */
-#define PCI_DEVICE_ID_RP6M		0x000C	/* RocketModem 6 port                    */
-#define PCI_DEVICE_ID_RP4M		0x000D	/* RocketModem 4 port                    */
-#define PCI_DEVICE_ID_RP2_232           0x000E	/* Rocketport Plus 2 port RS232          */
-#define PCI_DEVICE_ID_RP2_422           0x000F	/* Rocketport Plus 2 port RS422          */ 
-
-/* Universal PCI boards  */
-#define PCI_DEVICE_ID_URP32INTF		0x0801	/* Rocketport UPCI 32 port w/external I/F */ 
-#define PCI_DEVICE_ID_URP8INTF		0x0802	/* Rocketport UPCI 8 port w/external I/F  */
-#define PCI_DEVICE_ID_URP16INTF		0x0803	/* Rocketport UPCI 16 port w/external I/F */
-#define PCI_DEVICE_ID_URP8OCTA		0x0805	/* Rocketport UPCI 8 port w/octa cable    */
-#define PCI_DEVICE_ID_UPCI_RM3_8PORT    0x080C	/* Rocketmodem III 8 port                 */
-#define PCI_DEVICE_ID_UPCI_RM3_4PORT    0x080D	/* Rocketmodem III 4 port                 */
-
-/* Compact PCI device */ 
-#define PCI_DEVICE_ID_CRP16INTF		0x0903	/* Rocketport Compact PCI 16 port w/external I/F */
-
diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c
deleted file mode 100644
index 18888d005a0a..000000000000
--- a/drivers/char/synclink.c
+++ /dev/null
@@ -1,8119 +0,0 @@
-/*
- * linux/drivers/char/synclink.c
- *
- * $Id: synclink.c,v 4.38 2005/11/07 16:30:34 paulkf Exp $
- *
- * Device driver for Microgate SyncLink ISA and PCI
- * high speed multiprotocol serial adapters.
- *
- * written by Paul Fulghum for Microgate Corporation
- * paulkf@microgate.com
- *
- * Microgate and SyncLink are trademarks of Microgate Corporation
- *
- * Derived from serial.c written by Theodore Ts'o and Linus Torvalds
- *
- * Original release 01/11/99
- *
- * This code is released under the GNU General Public License (GPL)
- *
- * This driver is primarily intended for use in synchronous
- * HDLC mode. Asynchronous mode is also provided.
- *
- * When operating in synchronous mode, each call to mgsl_write()
- * contains exactly one complete HDLC frame. Calling mgsl_put_char
- * will start assembling an HDLC frame that will not be sent until
- * mgsl_flush_chars or mgsl_write is called.
- * 
- * Synchronous receive data is reported as complete frames. To accomplish
- * this, the TTY flip buffer is bypassed (too small to hold largest
- * frame and may fragment frames) and the line discipline
- * receive entry point is called directly.
- *
- * This driver has been tested with a slightly modified ppp.c driver
- * for synchronous PPP.
- *
- * 2000/02/16
- * Added interface for syncppp.c driver (an alternate synchronous PPP
- * implementation that also supports Cisco HDLC). Each device instance
- * registers as a tty device AND a network device (if dosyncppp option
- * is set for the device). The functionality is determined by which
- * device interface is opened.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#if defined(__i386__)
-#  define BREAKPOINT() asm("   int $3");
-#else
-#  define BREAKPOINT() { }
-#endif
-
-#define MAX_ISA_DEVICES 10
-#define MAX_PCI_DEVICES 10
-#define MAX_TOTAL_DEVICES 20
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/serial.h>
-#include <linux/major.h>
-#include <linux/string.h>
-#include <linux/fcntl.h>
-#include <linux/ptrace.h>
-#include <linux/ioport.h>
-#include <linux/mm.h>
-#include <linux/seq_file.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/netdevice.h>
-#include <linux/vmalloc.h>
-#include <linux/init.h>
-#include <linux/ioctl.h>
-#include <linux/synclink.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/dma.h>
-#include <linux/bitops.h>
-#include <asm/types.h>
-#include <linux/termios.h>
-#include <linux/workqueue.h>
-#include <linux/hdlc.h>
-#include <linux/dma-mapping.h>
-
-#if defined(CONFIG_HDLC) || (defined(CONFIG_HDLC_MODULE) && defined(CONFIG_SYNCLINK_MODULE))
-#define SYNCLINK_GENERIC_HDLC 1
-#else
-#define SYNCLINK_GENERIC_HDLC 0
-#endif
-
-#define GET_USER(error,value,addr) error = get_user(value,addr)
-#define COPY_FROM_USER(error,dest,src,size) error = copy_from_user(dest,src,size) ? -EFAULT : 0
-#define PUT_USER(error,value,addr) error = put_user(value,addr)
-#define COPY_TO_USER(error,dest,src,size) error = copy_to_user(dest,src,size) ? -EFAULT : 0
-
-#include <asm/uaccess.h>
-
-#define RCLRVALUE 0xffff
-
-static MGSL_PARAMS default_params = {
-	MGSL_MODE_HDLC,			/* unsigned long mode */
-	0,				/* unsigned char loopback; */
-	HDLC_FLAG_UNDERRUN_ABORT15,	/* unsigned short flags; */
-	HDLC_ENCODING_NRZI_SPACE,	/* unsigned char encoding; */
-	0,				/* unsigned long clock_speed; */
-	0xff,				/* unsigned char addr_filter; */
-	HDLC_CRC_16_CCITT,		/* unsigned short crc_type; */
-	HDLC_PREAMBLE_LENGTH_8BITS,	/* unsigned char preamble_length; */
-	HDLC_PREAMBLE_PATTERN_NONE,	/* unsigned char preamble; */
-	9600,				/* unsigned long data_rate; */
-	8,				/* unsigned char data_bits; */
-	1,				/* unsigned char stop_bits; */
-	ASYNC_PARITY_NONE		/* unsigned char parity; */
-};
-
-#define SHARED_MEM_ADDRESS_SIZE 0x40000
-#define BUFFERLISTSIZE 4096
-#define DMABUFFERSIZE 4096
-#define MAXRXFRAMES 7
-
-typedef struct _DMABUFFERENTRY
-{
-	u32 phys_addr;	/* 32-bit flat physical address of data buffer */
-	volatile u16 count;	/* buffer size/data count */
-	volatile u16 status;	/* Control/status field */
-	volatile u16 rcc;	/* character count field */
-	u16 reserved;	/* padding required by 16C32 */
-	u32 link;	/* 32-bit flat link to next buffer entry */
-	char *virt_addr;	/* virtual address of data buffer */
-	u32 phys_entry;	/* physical address of this buffer entry */
-	dma_addr_t dma_addr;
-} DMABUFFERENTRY, *DMAPBUFFERENTRY;
-
-/* The queue of BH actions to be performed */
-
-#define BH_RECEIVE  1
-#define BH_TRANSMIT 2
-#define BH_STATUS   4
-
-#define IO_PIN_SHUTDOWN_LIMIT 100
-
-struct	_input_signal_events {
-	int	ri_up;	
-	int	ri_down;
-	int	dsr_up;
-	int	dsr_down;
-	int	dcd_up;
-	int	dcd_down;
-	int	cts_up;
-	int	cts_down;
-};
-
-/* transmit holding buffer definitions*/
-#define MAX_TX_HOLDING_BUFFERS 5
-struct tx_holding_buffer {
-	int	buffer_size;
-	unsigned char *	buffer;
-};
-
-
-/*
- * Device instance data structure
- */
- 
-struct mgsl_struct {
-	int			magic;
-	struct tty_port		port;
-	int			line;
-	int                     hw_version;
-	
-	struct mgsl_icount	icount;
-	
-	int			timeout;
-	int			x_char;		/* xon/xoff character */
-	u16			read_status_mask;
-	u16			ignore_status_mask;	
-	unsigned char 		*xmit_buf;
-	int			xmit_head;
-	int			xmit_tail;
-	int			xmit_cnt;
-	
-	wait_queue_head_t	status_event_wait_q;
-	wait_queue_head_t	event_wait_q;
-	struct timer_list	tx_timer;	/* HDLC transmit timeout timer */
-	struct mgsl_struct	*next_device;	/* device list link */
-	
-	spinlock_t irq_spinlock;		/* spinlock for synchronizing with ISR */
-	struct work_struct task;		/* task structure for scheduling bh */
-
-	u32 EventMask;			/* event trigger mask */
-	u32 RecordedEvents;		/* pending events */
-
-	u32 max_frame_size;		/* as set by device config */
-
-	u32 pending_bh;
-
-	bool bh_running;		/* Protection from multiple */
-	int isr_overflow;
-	bool bh_requested;
-	
-	int dcd_chkcount;		/* check counts to prevent */
-	int cts_chkcount;		/* too many IRQs if a signal */
-	int dsr_chkcount;		/* is floating */
-	int ri_chkcount;
-
-	char *buffer_list;		/* virtual address of Rx & Tx buffer lists */
-	u32 buffer_list_phys;
-	dma_addr_t buffer_list_dma_addr;
-
-	unsigned int rx_buffer_count;	/* count of total allocated Rx buffers */
-	DMABUFFERENTRY *rx_buffer_list;	/* list of receive buffer entries */
-	unsigned int current_rx_buffer;
-
-	int num_tx_dma_buffers;		/* number of tx dma frames required */
- 	int tx_dma_buffers_used;
-	unsigned int tx_buffer_count;	/* count of total allocated Tx buffers */
-	DMABUFFERENTRY *tx_buffer_list;	/* list of transmit buffer entries */
-	int start_tx_dma_buffer;	/* tx dma buffer to start tx dma operation */
-	int current_tx_buffer;          /* next tx dma buffer to be loaded */
-	
-	unsigned char *intermediate_rxbuffer;
-
-	int num_tx_holding_buffers;	/* number of tx holding buffer allocated */
-	int get_tx_holding_index;  	/* next tx holding buffer for adapter to load */
-	int put_tx_holding_index;  	/* next tx holding buffer to store user request */
-	int tx_holding_count;		/* number of tx holding buffers waiting */
-	struct tx_holding_buffer tx_holding_buffers[MAX_TX_HOLDING_BUFFERS];
-
-	bool rx_enabled;
-	bool rx_overflow;
-	bool rx_rcc_underrun;
-
-	bool tx_enabled;
-	bool tx_active;
-	u32 idle_mode;
-
-	u16 cmr_value;
-	u16 tcsr_value;
-
-	char device_name[25];		/* device instance name */
-
-	unsigned int bus_type;	/* expansion bus type (ISA,EISA,PCI) */
-	unsigned char bus;		/* expansion bus number (zero based) */
-	unsigned char function;		/* PCI device number */
-
-	unsigned int io_base;		/* base I/O address of adapter */
-	unsigned int io_addr_size;	/* size of the I/O address range */
-	bool io_addr_requested;		/* true if I/O address requested */
-	
-	unsigned int irq_level;		/* interrupt level */
-	unsigned long irq_flags;
-	bool irq_requested;		/* true if IRQ requested */
-	
-	unsigned int dma_level;		/* DMA channel */
-	bool dma_requested;		/* true if dma channel requested */
-
-	u16 mbre_bit;
-	u16 loopback_bits;
-	u16 usc_idle_mode;
-
-	MGSL_PARAMS params;		/* communications parameters */
-
-	unsigned char serial_signals;	/* current serial signal states */
-
-	bool irq_occurred;		/* for diagnostics use */
-	unsigned int init_error;	/* Initialization startup error 		(DIAGS)	*/
-	int	fDiagnosticsmode;	/* Driver in Diagnostic mode?			(DIAGS)	*/
-
-	u32 last_mem_alloc;
-	unsigned char* memory_base;	/* shared memory address (PCI only) */
-	u32 phys_memory_base;
-	bool shared_mem_requested;
-
-	unsigned char* lcr_base;	/* local config registers (PCI only) */
-	u32 phys_lcr_base;
-	u32 lcr_offset;
-	bool lcr_mem_requested;
-
-	u32 misc_ctrl_value;
-	char flag_buf[MAX_ASYNC_BUFFER_SIZE];
-	char char_buf[MAX_ASYNC_BUFFER_SIZE];	
-	bool drop_rts_on_tx_done;
-
-	bool loopmode_insert_requested;
-	bool loopmode_send_done_requested;
-	
-	struct	_input_signal_events	input_signal_events;
-
-	/* generic HDLC device parts */
-	int netcount;
-	spinlock_t netlock;
-
-#if SYNCLINK_GENERIC_HDLC
-	struct net_device *netdev;
-#endif
-};
-
-#define MGSL_MAGIC 0x5401
-
-/*
- * The size of the serial xmit buffer is 1 page, or 4096 bytes
- */
-#ifndef SERIAL_XMIT_SIZE
-#define SERIAL_XMIT_SIZE 4096
-#endif
-
-/*
- * These macros define the offsets used in calculating the
- * I/O address of the specified USC registers.
- */
-
-
-#define DCPIN 2		/* Bit 1 of I/O address */
-#define SDPIN 4		/* Bit 2 of I/O address */
-
-#define DCAR 0		/* DMA command/address register */
-#define CCAR SDPIN		/* channel command/address register */
-#define DATAREG DCPIN + SDPIN	/* serial data register */
-#define MSBONLY 0x41
-#define LSBONLY 0x40
-
-/*
- * These macros define the register address (ordinal number)
- * used for writing address/value pairs to the USC.
- */
-
-#define CMR	0x02	/* Channel mode Register */
-#define CCSR	0x04	/* Channel Command/status Register */
-#define CCR	0x06	/* Channel Control Register */
-#define PSR	0x08	/* Port status Register */
-#define PCR	0x0a	/* Port Control Register */
-#define TMDR	0x0c	/* Test mode Data Register */
-#define TMCR	0x0e	/* Test mode Control Register */
-#define CMCR	0x10	/* Clock mode Control Register */
-#define HCR	0x12	/* Hardware Configuration Register */
-#define IVR	0x14	/* Interrupt Vector Register */
-#define IOCR	0x16	/* Input/Output Control Register */
-#define ICR	0x18	/* Interrupt Control Register */
-#define DCCR	0x1a	/* Daisy Chain Control Register */
-#define MISR	0x1c	/* Misc Interrupt status Register */
-#define SICR	0x1e	/* status Interrupt Control Register */
-#define RDR	0x20	/* Receive Data Register */
-#define RMR	0x22	/* Receive mode Register */
-#define RCSR	0x24	/* Receive Command/status Register */
-#define RICR	0x26	/* Receive Interrupt Control Register */
-#define RSR	0x28	/* Receive Sync Register */
-#define RCLR	0x2a	/* Receive count Limit Register */
-#define RCCR	0x2c	/* Receive Character count Register */
-#define TC0R	0x2e	/* Time Constant 0 Register */
-#define TDR	0x30	/* Transmit Data Register */
-#define TMR	0x32	/* Transmit mode Register */
-#define TCSR	0x34	/* Transmit Command/status Register */
-#define TICR	0x36	/* Transmit Interrupt Control Register */
-#define TSR	0x38	/* Transmit Sync Register */
-#define TCLR	0x3a	/* Transmit count Limit Register */
-#define TCCR	0x3c	/* Transmit Character count Register */
-#define TC1R	0x3e	/* Time Constant 1 Register */
-
-
-/*
- * MACRO DEFINITIONS FOR DMA REGISTERS
- */
-
-#define DCR	0x06	/* DMA Control Register (shared) */
-#define DACR	0x08	/* DMA Array count Register (shared) */
-#define BDCR	0x12	/* Burst/Dwell Control Register (shared) */
-#define DIVR	0x14	/* DMA Interrupt Vector Register (shared) */	
-#define DICR	0x18	/* DMA Interrupt Control Register (shared) */
-#define CDIR	0x1a	/* Clear DMA Interrupt Register (shared) */
-#define SDIR	0x1c	/* Set DMA Interrupt Register (shared) */
-
-#define TDMR	0x02	/* Transmit DMA mode Register */
-#define TDIAR	0x1e	/* Transmit DMA Interrupt Arm Register */
-#define TBCR	0x2a	/* Transmit Byte count Register */
-#define TARL	0x2c	/* Transmit Address Register (low) */
-#define TARU	0x2e	/* Transmit Address Register (high) */
-#define NTBCR	0x3a	/* Next Transmit Byte count Register */
-#define NTARL	0x3c	/* Next Transmit Address Register (low) */
-#define NTARU	0x3e	/* Next Transmit Address Register (high) */
-
-#define RDMR	0x82	/* Receive DMA mode Register (non-shared) */
-#define RDIAR	0x9e	/* Receive DMA Interrupt Arm Register */
-#define RBCR	0xaa	/* Receive Byte count Register */
-#define RARL	0xac	/* Receive Address Register (low) */
-#define RARU	0xae	/* Receive Address Register (high) */
-#define NRBCR	0xba	/* Next Receive Byte count Register */
-#define NRARL	0xbc	/* Next Receive Address Register (low) */
-#define NRARU	0xbe	/* Next Receive Address Register (high) */
-
-
-/*
- * MACRO DEFINITIONS FOR MODEM STATUS BITS
- */
-
-#define MODEMSTATUS_DTR 0x80
-#define MODEMSTATUS_DSR 0x40
-#define MODEMSTATUS_RTS 0x20
-#define MODEMSTATUS_CTS 0x10
-#define MODEMSTATUS_RI  0x04
-#define MODEMSTATUS_DCD 0x01
-
-
-/*
- * Channel Command/Address Register (CCAR) Command Codes
- */
-
-#define RTCmd_Null			0x0000
-#define RTCmd_ResetHighestIus		0x1000
-#define RTCmd_TriggerChannelLoadDma	0x2000
-#define RTCmd_TriggerRxDma		0x2800
-#define RTCmd_TriggerTxDma		0x3000
-#define RTCmd_TriggerRxAndTxDma		0x3800
-#define RTCmd_PurgeRxFifo		0x4800
-#define RTCmd_PurgeTxFifo		0x5000
-#define RTCmd_PurgeRxAndTxFifo		0x5800
-#define RTCmd_LoadRcc			0x6800
-#define RTCmd_LoadTcc			0x7000
-#define RTCmd_LoadRccAndTcc		0x7800
-#define RTCmd_LoadTC0			0x8800
-#define RTCmd_LoadTC1			0x9000
-#define RTCmd_LoadTC0AndTC1		0x9800
-#define RTCmd_SerialDataLSBFirst	0xa000
-#define RTCmd_SerialDataMSBFirst	0xa800
-#define RTCmd_SelectBigEndian		0xb000
-#define RTCmd_SelectLittleEndian	0xb800
-
-
-/*
- * DMA Command/Address Register (DCAR) Command Codes
- */
-
-#define DmaCmd_Null			0x0000
-#define DmaCmd_ResetTxChannel		0x1000
-#define DmaCmd_ResetRxChannel		0x1200
-#define DmaCmd_StartTxChannel		0x2000
-#define DmaCmd_StartRxChannel		0x2200
-#define DmaCmd_ContinueTxChannel	0x3000
-#define DmaCmd_ContinueRxChannel	0x3200
-#define DmaCmd_PauseTxChannel		0x4000
-#define DmaCmd_PauseRxChannel		0x4200
-#define DmaCmd_AbortTxChannel		0x5000
-#define DmaCmd_AbortRxChannel		0x5200
-#define DmaCmd_InitTxChannel		0x7000
-#define DmaCmd_InitRxChannel		0x7200
-#define DmaCmd_ResetHighestDmaIus	0x8000
-#define DmaCmd_ResetAllChannels		0x9000
-#define DmaCmd_StartAllChannels		0xa000
-#define DmaCmd_ContinueAllChannels	0xb000
-#define DmaCmd_PauseAllChannels		0xc000
-#define DmaCmd_AbortAllChannels		0xd000
-#define DmaCmd_InitAllChannels		0xf000
-
-#define TCmd_Null			0x0000
-#define TCmd_ClearTxCRC			0x2000
-#define TCmd_SelectTicrTtsaData		0x4000
-#define TCmd_SelectTicrTxFifostatus	0x5000
-#define TCmd_SelectTicrIntLevel		0x6000
-#define TCmd_SelectTicrdma_level		0x7000
-#define TCmd_SendFrame			0x8000
-#define TCmd_SendAbort			0x9000
-#define TCmd_EnableDleInsertion		0xc000
-#define TCmd_DisableDleInsertion	0xd000
-#define TCmd_ClearEofEom		0xe000
-#define TCmd_SetEofEom			0xf000
-
-#define RCmd_Null			0x0000
-#define RCmd_ClearRxCRC			0x2000
-#define RCmd_EnterHuntmode		0x3000
-#define RCmd_SelectRicrRtsaData		0x4000
-#define RCmd_SelectRicrRxFifostatus	0x5000
-#define RCmd_SelectRicrIntLevel		0x6000
-#define RCmd_SelectRicrdma_level		0x7000
-
-/*
- * Bits for enabling and disabling IRQs in Interrupt Control Register (ICR)
- */
- 
-#define RECEIVE_STATUS		BIT5
-#define RECEIVE_DATA		BIT4
-#define TRANSMIT_STATUS		BIT3
-#define TRANSMIT_DATA		BIT2
-#define IO_PIN			BIT1
-#define MISC			BIT0
-
-
-/*
- * Receive status Bits in Receive Command/status Register RCSR
- */
-
-#define RXSTATUS_SHORT_FRAME		BIT8
-#define RXSTATUS_CODE_VIOLATION		BIT8
-#define RXSTATUS_EXITED_HUNT		BIT7
-#define RXSTATUS_IDLE_RECEIVED		BIT6
-#define RXSTATUS_BREAK_RECEIVED		BIT5
-#define RXSTATUS_ABORT_RECEIVED		BIT5
-#define RXSTATUS_RXBOUND		BIT4
-#define RXSTATUS_CRC_ERROR		BIT3
-#define RXSTATUS_FRAMING_ERROR		BIT3
-#define RXSTATUS_ABORT			BIT2
-#define RXSTATUS_PARITY_ERROR		BIT2
-#define RXSTATUS_OVERRUN		BIT1
-#define RXSTATUS_DATA_AVAILABLE		BIT0
-#define RXSTATUS_ALL			0x01f6
-#define usc_UnlatchRxstatusBits(a,b) usc_OutReg( (a), RCSR, (u16)((b) & RXSTATUS_ALL) )
-
-/*
- * Values for setting transmit idle mode in 
- * Transmit Control/status Register (TCSR)
- */
-#define IDLEMODE_FLAGS			0x0000
-#define IDLEMODE_ALT_ONE_ZERO		0x0100
-#define IDLEMODE_ZERO			0x0200
-#define IDLEMODE_ONE			0x0300
-#define IDLEMODE_ALT_MARK_SPACE		0x0500
-#define IDLEMODE_SPACE			0x0600
-#define IDLEMODE_MARK			0x0700
-#define IDLEMODE_MASK			0x0700
-
-/*
- * IUSC revision identifiers
- */
-#define	IUSC_SL1660			0x4d44
-#define IUSC_PRE_SL1660			0x4553
-
-/*
- * Transmit status Bits in Transmit Command/status Register (TCSR)
- */
-
-#define TCSR_PRESERVE			0x0F00
-
-#define TCSR_UNDERWAIT			BIT11
-#define TXSTATUS_PREAMBLE_SENT		BIT7
-#define TXSTATUS_IDLE_SENT		BIT6
-#define TXSTATUS_ABORT_SENT		BIT5
-#define TXSTATUS_EOF_SENT		BIT4
-#define TXSTATUS_EOM_SENT		BIT4
-#define TXSTATUS_CRC_SENT		BIT3
-#define TXSTATUS_ALL_SENT		BIT2
-#define TXSTATUS_UNDERRUN		BIT1
-#define TXSTATUS_FIFO_EMPTY		BIT0
-#define TXSTATUS_ALL			0x00fa
-#define usc_UnlatchTxstatusBits(a,b) usc_OutReg( (a), TCSR, (u16)((a)->tcsr_value + ((b) & 0x00FF)) )
-				
-
-#define MISCSTATUS_RXC_LATCHED		BIT15
-#define MISCSTATUS_RXC			BIT14
-#define MISCSTATUS_TXC_LATCHED		BIT13
-#define MISCSTATUS_TXC			BIT12
-#define MISCSTATUS_RI_LATCHED		BIT11
-#define MISCSTATUS_RI			BIT10
-#define MISCSTATUS_DSR_LATCHED		BIT9
-#define MISCSTATUS_DSR			BIT8
-#define MISCSTATUS_DCD_LATCHED		BIT7
-#define MISCSTATUS_DCD			BIT6
-#define MISCSTATUS_CTS_LATCHED		BIT5
-#define MISCSTATUS_CTS			BIT4
-#define MISCSTATUS_RCC_UNDERRUN		BIT3
-#define MISCSTATUS_DPLL_NO_SYNC		BIT2
-#define MISCSTATUS_BRG1_ZERO		BIT1
-#define MISCSTATUS_BRG0_ZERO		BIT0
-
-#define usc_UnlatchIostatusBits(a,b) usc_OutReg((a),MISR,(u16)((b) & 0xaaa0))
-#define usc_UnlatchMiscstatusBits(a,b) usc_OutReg((a),MISR,(u16)((b) & 0x000f))
-
-#define SICR_RXC_ACTIVE			BIT15
-#define SICR_RXC_INACTIVE		BIT14
-#define SICR_RXC			(BIT15+BIT14)
-#define SICR_TXC_ACTIVE			BIT13
-#define SICR_TXC_INACTIVE		BIT12
-#define SICR_TXC			(BIT13+BIT12)
-#define SICR_RI_ACTIVE			BIT11
-#define SICR_RI_INACTIVE		BIT10
-#define SICR_RI				(BIT11+BIT10)
-#define SICR_DSR_ACTIVE			BIT9
-#define SICR_DSR_INACTIVE		BIT8
-#define SICR_DSR			(BIT9+BIT8)
-#define SICR_DCD_ACTIVE			BIT7
-#define SICR_DCD_INACTIVE		BIT6
-#define SICR_DCD			(BIT7+BIT6)
-#define SICR_CTS_ACTIVE			BIT5
-#define SICR_CTS_INACTIVE		BIT4
-#define SICR_CTS			(BIT5+BIT4)
-#define SICR_RCC_UNDERFLOW		BIT3
-#define SICR_DPLL_NO_SYNC		BIT2
-#define SICR_BRG1_ZERO			BIT1
-#define SICR_BRG0_ZERO			BIT0
-
-void usc_DisableMasterIrqBit( struct mgsl_struct *info );
-void usc_EnableMasterIrqBit( struct mgsl_struct *info );
-void usc_EnableInterrupts( struct mgsl_struct *info, u16 IrqMask );
-void usc_DisableInterrupts( struct mgsl_struct *info, u16 IrqMask );
-void usc_ClearIrqPendingBits( struct mgsl_struct *info, u16 IrqMask );
-
-#define usc_EnableInterrupts( a, b ) \
-	usc_OutReg( (a), ICR, (u16)((usc_InReg((a),ICR) & 0xff00) + 0xc0 + (b)) )
-
-#define usc_DisableInterrupts( a, b ) \
-	usc_OutReg( (a), ICR, (u16)((usc_InReg((a),ICR) & 0xff00) + 0x80 + (b)) )
-
-#define usc_EnableMasterIrqBit(a) \
-	usc_OutReg( (a), ICR, (u16)((usc_InReg((a),ICR) & 0x0f00) + 0xb000) )
-
-#define usc_DisableMasterIrqBit(a) \
-	usc_OutReg( (a), ICR, (u16)(usc_InReg((a),ICR) & 0x7f00) )
-
-#define usc_ClearIrqPendingBits( a, b ) usc_OutReg( (a), DCCR, 0x40 + (b) )
-
-/*
- * Transmit status Bits in Transmit Control status Register (TCSR)
- * and Transmit Interrupt Control Register (TICR) (except BIT2, BIT0)
- */
-
-#define TXSTATUS_PREAMBLE_SENT	BIT7
-#define TXSTATUS_IDLE_SENT	BIT6
-#define TXSTATUS_ABORT_SENT	BIT5
-#define TXSTATUS_EOF		BIT4
-#define TXSTATUS_CRC_SENT	BIT3
-#define TXSTATUS_ALL_SENT	BIT2
-#define TXSTATUS_UNDERRUN	BIT1
-#define TXSTATUS_FIFO_EMPTY	BIT0
-
-#define DICR_MASTER		BIT15
-#define DICR_TRANSMIT		BIT0
-#define DICR_RECEIVE		BIT1
-
-#define usc_EnableDmaInterrupts(a,b) \
-	usc_OutDmaReg( (a), DICR, (u16)(usc_InDmaReg((a),DICR) | (b)) )
-
-#define usc_DisableDmaInterrupts(a,b) \
-	usc_OutDmaReg( (a), DICR, (u16)(usc_InDmaReg((a),DICR) & ~(b)) )
-
-#define usc_EnableStatusIrqs(a,b) \
-	usc_OutReg( (a), SICR, (u16)(usc_InReg((a),SICR) | (b)) )
-
-#define usc_DisablestatusIrqs(a,b) \
-	usc_OutReg( (a), SICR, (u16)(usc_InReg((a),SICR) & ~(b)) )
-
-/* Transmit status Bits in Transmit Control status Register (TCSR) */
-/* and Transmit Interrupt Control Register (TICR) (except BIT2, BIT0) */
-
-
-#define DISABLE_UNCONDITIONAL    0
-#define DISABLE_END_OF_FRAME     1
-#define ENABLE_UNCONDITIONAL     2
-#define ENABLE_AUTO_CTS          3
-#define ENABLE_AUTO_DCD          3
-#define usc_EnableTransmitter(a,b) \
-	usc_OutReg( (a), TMR, (u16)((usc_InReg((a),TMR) & 0xfffc) | (b)) )
-#define usc_EnableReceiver(a,b) \
-	usc_OutReg( (a), RMR, (u16)((usc_InReg((a),RMR) & 0xfffc) | (b)) )
-
-static u16  usc_InDmaReg( struct mgsl_struct *info, u16 Port );
-static void usc_OutDmaReg( struct mgsl_struct *info, u16 Port, u16 Value );
-static void usc_DmaCmd( struct mgsl_struct *info, u16 Cmd );
-
-static u16  usc_InReg( struct mgsl_struct *info, u16 Port );
-static void usc_OutReg( struct mgsl_struct *info, u16 Port, u16 Value );
-static void usc_RTCmd( struct mgsl_struct *info, u16 Cmd );
-void usc_RCmd( struct mgsl_struct *info, u16 Cmd );
-void usc_TCmd( struct mgsl_struct *info, u16 Cmd );
-
-#define usc_TCmd(a,b) usc_OutReg((a), TCSR, (u16)((a)->tcsr_value + (b)))
-#define usc_RCmd(a,b) usc_OutReg((a), RCSR, (b))
-
-#define usc_SetTransmitSyncChars(a,s0,s1) usc_OutReg((a), TSR, (u16)(((u16)s0<<8)|(u16)s1))
-
-static void usc_process_rxoverrun_sync( struct mgsl_struct *info );
-static void usc_start_receiver( struct mgsl_struct *info );
-static void usc_stop_receiver( struct mgsl_struct *info );
-
-static void usc_start_transmitter( struct mgsl_struct *info );
-static void usc_stop_transmitter( struct mgsl_struct *info );
-static void usc_set_txidle( struct mgsl_struct *info );
-static void usc_load_txfifo( struct mgsl_struct *info );
-
-static void usc_enable_aux_clock( struct mgsl_struct *info, u32 DataRate );
-static void usc_enable_loopback( struct mgsl_struct *info, int enable );
-
-static void usc_get_serial_signals( struct mgsl_struct *info );
-static void usc_set_serial_signals( struct mgsl_struct *info );
-
-static void usc_reset( struct mgsl_struct *info );
-
-static void usc_set_sync_mode( struct mgsl_struct *info );
-static void usc_set_sdlc_mode( struct mgsl_struct *info );
-static void usc_set_async_mode( struct mgsl_struct *info );
-static void usc_enable_async_clock( struct mgsl_struct *info, u32 DataRate );
-
-static void usc_loopback_frame( struct mgsl_struct *info );
-
-static void mgsl_tx_timeout(unsigned long context);
-
-
-static void usc_loopmode_cancel_transmit( struct mgsl_struct * info );
-static void usc_loopmode_insert_request( struct mgsl_struct * info );
-static int usc_loopmode_active( struct mgsl_struct * info);
-static void usc_loopmode_send_done( struct mgsl_struct * info );
-
-static int mgsl_ioctl_common(struct mgsl_struct *info, unsigned int cmd, unsigned long arg);
-
-#if SYNCLINK_GENERIC_HDLC
-#define dev_to_port(D) (dev_to_hdlc(D)->priv)
-static void hdlcdev_tx_done(struct mgsl_struct *info);
-static void hdlcdev_rx(struct mgsl_struct *info, char *buf, int size);
-static int  hdlcdev_init(struct mgsl_struct *info);
-static void hdlcdev_exit(struct mgsl_struct *info);
-#endif
-
-/*
- * Defines a BUS descriptor value for the PCI adapter
- * local bus address ranges.
- */
-
-#define BUS_DESCRIPTOR( WrHold, WrDly, RdDly, Nwdd, Nwad, Nxda, Nrdd, Nrad ) \
-(0x00400020 + \
-((WrHold) << 30) + \
-((WrDly)  << 28) + \
-((RdDly)  << 26) + \
-((Nwdd)   << 20) + \
-((Nwad)   << 15) + \
-((Nxda)   << 13) + \
-((Nrdd)   << 11) + \
-((Nrad)   <<  6) )
-
-static void mgsl_trace_block(struct mgsl_struct *info,const char* data, int count, int xmit);
-
-/*
- * Adapter diagnostic routines
- */
-static bool mgsl_register_test( struct mgsl_struct *info );
-static bool mgsl_irq_test( struct mgsl_struct *info );
-static bool mgsl_dma_test( struct mgsl_struct *info );
-static bool mgsl_memory_test( struct mgsl_struct *info );
-static int mgsl_adapter_test( struct mgsl_struct *info );
-
-/*
- * device and resource management routines
- */
-static int mgsl_claim_resources(struct mgsl_struct *info);
-static void mgsl_release_resources(struct mgsl_struct *info);
-static void mgsl_add_device(struct mgsl_struct *info);
-static struct mgsl_struct* mgsl_allocate_device(void);
-
-/*
- * DMA buffer manupulation functions.
- */
-static void mgsl_free_rx_frame_buffers( struct mgsl_struct *info, unsigned int StartIndex, unsigned int EndIndex );
-static bool mgsl_get_rx_frame( struct mgsl_struct *info );
-static bool mgsl_get_raw_rx_frame( struct mgsl_struct *info );
-static void mgsl_reset_rx_dma_buffers( struct mgsl_struct *info );
-static void mgsl_reset_tx_dma_buffers( struct mgsl_struct *info );
-static int num_free_tx_dma_buffers(struct mgsl_struct *info);
-static void mgsl_load_tx_dma_buffer( struct mgsl_struct *info, const char *Buffer, unsigned int BufferSize);
-static void mgsl_load_pci_memory(char* TargetPtr, const char* SourcePtr, unsigned short count);
-
-/*
- * DMA and Shared Memory buffer allocation and formatting
- */
-static int  mgsl_allocate_dma_buffers(struct mgsl_struct *info);
-static void mgsl_free_dma_buffers(struct mgsl_struct *info);
-static int  mgsl_alloc_frame_memory(struct mgsl_struct *info, DMABUFFERENTRY *BufferList,int Buffercount);
-static void mgsl_free_frame_memory(struct mgsl_struct *info, DMABUFFERENTRY *BufferList,int Buffercount);
-static int  mgsl_alloc_buffer_list_memory(struct mgsl_struct *info);
-static void mgsl_free_buffer_list_memory(struct mgsl_struct *info);
-static int mgsl_alloc_intermediate_rxbuffer_memory(struct mgsl_struct *info);
-static void mgsl_free_intermediate_rxbuffer_memory(struct mgsl_struct *info);
-static int mgsl_alloc_intermediate_txbuffer_memory(struct mgsl_struct *info);
-static void mgsl_free_intermediate_txbuffer_memory(struct mgsl_struct *info);
-static bool load_next_tx_holding_buffer(struct mgsl_struct *info);
-static int save_tx_buffer_request(struct mgsl_struct *info,const char *Buffer, unsigned int BufferSize);
-
-/*
- * Bottom half interrupt handlers
- */
-static void mgsl_bh_handler(struct work_struct *work);
-static void mgsl_bh_receive(struct mgsl_struct *info);
-static void mgsl_bh_transmit(struct mgsl_struct *info);
-static void mgsl_bh_status(struct mgsl_struct *info);
-
-/*
- * Interrupt handler routines and dispatch table.
- */
-static void mgsl_isr_null( struct mgsl_struct *info );
-static void mgsl_isr_transmit_data( struct mgsl_struct *info );
-static void mgsl_isr_receive_data( struct mgsl_struct *info );
-static void mgsl_isr_receive_status( struct mgsl_struct *info );
-static void mgsl_isr_transmit_status( struct mgsl_struct *info );
-static void mgsl_isr_io_pin( struct mgsl_struct *info );
-static void mgsl_isr_misc( struct mgsl_struct *info );
-static void mgsl_isr_receive_dma( struct mgsl_struct *info );
-static void mgsl_isr_transmit_dma( struct mgsl_struct *info );
-
-typedef void (*isr_dispatch_func)(struct mgsl_struct *);
-
-static isr_dispatch_func UscIsrTable[7] =
-{
-	mgsl_isr_null,
-	mgsl_isr_misc,
-	mgsl_isr_io_pin,
-	mgsl_isr_transmit_data,
-	mgsl_isr_transmit_status,
-	mgsl_isr_receive_data,
-	mgsl_isr_receive_status
-};
-
-/*
- * ioctl call handlers
- */
-static int tiocmget(struct tty_struct *tty);
-static int tiocmset(struct tty_struct *tty,
-		    unsigned int set, unsigned int clear);
-static int mgsl_get_stats(struct mgsl_struct * info, struct mgsl_icount
-	__user *user_icount);
-static int mgsl_get_params(struct mgsl_struct * info, MGSL_PARAMS  __user *user_params);
-static int mgsl_set_params(struct mgsl_struct * info, MGSL_PARAMS  __user *new_params);
-static int mgsl_get_txidle(struct mgsl_struct * info, int __user *idle_mode);
-static int mgsl_set_txidle(struct mgsl_struct * info, int idle_mode);
-static int mgsl_txenable(struct mgsl_struct * info, int enable);
-static int mgsl_txabort(struct mgsl_struct * info);
-static int mgsl_rxenable(struct mgsl_struct * info, int enable);
-static int mgsl_wait_event(struct mgsl_struct * info, int __user *mask);
-static int mgsl_loopmode_send_done( struct mgsl_struct * info );
-
-/* set non-zero on successful registration with PCI subsystem */
-static bool pci_registered;
-
-/*
- * Global linked list of SyncLink devices
- */
-static struct mgsl_struct *mgsl_device_list;
-static int mgsl_device_count;
-
-/*
- * Set this param to non-zero to load eax with the
- * .text section address and breakpoint on module load.
- * This is useful for use with gdb and add-symbol-file command.
- */
-static int break_on_load;
-
-/*
- * Driver major number, defaults to zero to get auto
- * assigned major number. May be forced as module parameter.
- */
-static int ttymajor;
-
-/*
- * Array of user specified options for ISA adapters.
- */
-static int io[MAX_ISA_DEVICES];
-static int irq[MAX_ISA_DEVICES];
-static int dma[MAX_ISA_DEVICES];
-static int debug_level;
-static int maxframe[MAX_TOTAL_DEVICES];
-static int txdmabufs[MAX_TOTAL_DEVICES];
-static int txholdbufs[MAX_TOTAL_DEVICES];
-	
-module_param(break_on_load, bool, 0);
-module_param(ttymajor, int, 0);
-module_param_array(io, int, NULL, 0);
-module_param_array(irq, int, NULL, 0);
-module_param_array(dma, int, NULL, 0);
-module_param(debug_level, int, 0);
-module_param_array(maxframe, int, NULL, 0);
-module_param_array(txdmabufs, int, NULL, 0);
-module_param_array(txholdbufs, int, NULL, 0);
-
-static char *driver_name = "SyncLink serial driver";
-static char *driver_version = "$Revision: 4.38 $";
-
-static int synclink_init_one (struct pci_dev *dev,
-				     const struct pci_device_id *ent);
-static void synclink_remove_one (struct pci_dev *dev);
-
-static struct pci_device_id synclink_pci_tbl[] = {
-	{ PCI_VENDOR_ID_MICROGATE, PCI_DEVICE_ID_MICROGATE_USC, PCI_ANY_ID, PCI_ANY_ID, },
-	{ PCI_VENDOR_ID_MICROGATE, 0x0210, PCI_ANY_ID, PCI_ANY_ID, },
-	{ 0, }, /* terminate list */
-};
-MODULE_DEVICE_TABLE(pci, synclink_pci_tbl);
-
-MODULE_LICENSE("GPL");
-
-static struct pci_driver synclink_pci_driver = {
-	.name		= "synclink",
-	.id_table	= synclink_pci_tbl,
-	.probe		= synclink_init_one,
-	.remove		= __devexit_p(synclink_remove_one),
-};
-
-static struct tty_driver *serial_driver;
-
-/* number of characters left in xmit buffer before we ask for more */
-#define WAKEUP_CHARS 256
-
-
-static void mgsl_change_params(struct mgsl_struct *info);
-static void mgsl_wait_until_sent(struct tty_struct *tty, int timeout);
-
-/*
- * 1st function defined in .text section. Calling this function in
- * init_module() followed by a breakpoint allows a remote debugger
- * (gdb) to get the .text address for the add-symbol-file command.
- * This allows remote debugging of dynamically loadable modules.
- */
-static void* mgsl_get_text_ptr(void)
-{
-	return mgsl_get_text_ptr;
-}
-
-static inline int mgsl_paranoia_check(struct mgsl_struct *info,
-					char *name, const char *routine)
-{
-#ifdef MGSL_PARANOIA_CHECK
-	static const char *badmagic =
-		"Warning: bad magic number for mgsl struct (%s) in %s\n";
-	static const char *badinfo =
-		"Warning: null mgsl_struct for (%s) in %s\n";
-
-	if (!info) {
-		printk(badinfo, name, routine);
-		return 1;
-	}
-	if (info->magic != MGSL_MAGIC) {
-		printk(badmagic, name, routine);
-		return 1;
-	}
-#else
-	if (!info)
-		return 1;
-#endif
-	return 0;
-}
-
-/**
- * line discipline callback wrappers
- *
- * The wrappers maintain line discipline references
- * while calling into the line discipline.
- *
- * ldisc_receive_buf  - pass receive data to line discipline
- */
-
-static void ldisc_receive_buf(struct tty_struct *tty,
-			      const __u8 *data, char *flags, int count)
-{
-	struct tty_ldisc *ld;
-	if (!tty)
-		return;
-	ld = tty_ldisc_ref(tty);
-	if (ld) {
-		if (ld->ops->receive_buf)
-			ld->ops->receive_buf(tty, data, flags, count);
-		tty_ldisc_deref(ld);
-	}
-}
-
-/* mgsl_stop()		throttle (stop) transmitter
- * 	
- * Arguments:		tty	pointer to tty info structure
- * Return Value:	None
- */
-static void mgsl_stop(struct tty_struct *tty)
-{
-	struct mgsl_struct *info = tty->driver_data;
-	unsigned long flags;
-	
-	if (mgsl_paranoia_check(info, tty->name, "mgsl_stop"))
-		return;
-	
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk("mgsl_stop(%s)\n",info->device_name);	
-		
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-	if (info->tx_enabled)
-	 	usc_stop_transmitter(info);
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-	
-}	/* end of mgsl_stop() */
-
-/* mgsl_start()		release (start) transmitter
- * 	
- * Arguments:		tty	pointer to tty info structure
- * Return Value:	None
- */
-static void mgsl_start(struct tty_struct *tty)
-{
-	struct mgsl_struct *info = tty->driver_data;
-	unsigned long flags;
-	
-	if (mgsl_paranoia_check(info, tty->name, "mgsl_start"))
-		return;
-	
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk("mgsl_start(%s)\n",info->device_name);	
-		
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-	if (!info->tx_enabled)
-	 	usc_start_transmitter(info);
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-	
-}	/* end of mgsl_start() */
-
-/*
- * Bottom half work queue access functions
- */
-
-/* mgsl_bh_action()	Return next bottom half action to perform.
- * Return Value:	BH action code or 0 if nothing to do.
- */
-static int mgsl_bh_action(struct mgsl_struct *info)
-{
-	unsigned long flags;
-	int rc = 0;
-	
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-
-	if (info->pending_bh & BH_RECEIVE) {
-		info->pending_bh &= ~BH_RECEIVE;
-		rc = BH_RECEIVE;
-	} else if (info->pending_bh & BH_TRANSMIT) {
-		info->pending_bh &= ~BH_TRANSMIT;
-		rc = BH_TRANSMIT;
-	} else if (info->pending_bh & BH_STATUS) {
-		info->pending_bh &= ~BH_STATUS;
-		rc = BH_STATUS;
-	}
-
-	if (!rc) {
-		/* Mark BH routine as complete */
-		info->bh_running = false;
-		info->bh_requested = false;
-	}
-	
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-	
-	return rc;
-}
-
-/*
- * 	Perform bottom half processing of work items queued by ISR.
- */
-static void mgsl_bh_handler(struct work_struct *work)
-{
-	struct mgsl_struct *info =
-		container_of(work, struct mgsl_struct, task);
-	int action;
-
-	if (!info)
-		return;
-		
-	if ( debug_level >= DEBUG_LEVEL_BH )
-		printk( "%s(%d):mgsl_bh_handler(%s) entry\n",
-			__FILE__,__LINE__,info->device_name);
-	
-	info->bh_running = true;
-
-	while((action = mgsl_bh_action(info)) != 0) {
-	
-		/* Process work item */
-		if ( debug_level >= DEBUG_LEVEL_BH )
-			printk( "%s(%d):mgsl_bh_handler() work item action=%d\n",
-				__FILE__,__LINE__,action);
-
-		switch (action) {
-		
-		case BH_RECEIVE:
-			mgsl_bh_receive(info);
-			break;
-		case BH_TRANSMIT:
-			mgsl_bh_transmit(info);
-			break;
-		case BH_STATUS:
-			mgsl_bh_status(info);
-			break;
-		default:
-			/* unknown work item ID */
-			printk("Unknown work item ID=%08X!\n", action);
-			break;
-		}
-	}
-
-	if ( debug_level >= DEBUG_LEVEL_BH )
-		printk( "%s(%d):mgsl_bh_handler(%s) exit\n",
-			__FILE__,__LINE__,info->device_name);
-}
-
-static void mgsl_bh_receive(struct mgsl_struct *info)
-{
-	bool (*get_rx_frame)(struct mgsl_struct *info) =
-		(info->params.mode == MGSL_MODE_HDLC ? mgsl_get_rx_frame : mgsl_get_raw_rx_frame);
-
-	if ( debug_level >= DEBUG_LEVEL_BH )
-		printk( "%s(%d):mgsl_bh_receive(%s)\n",
-			__FILE__,__LINE__,info->device_name);
-	
-	do
-	{
-		if (info->rx_rcc_underrun) {
-			unsigned long flags;
-			spin_lock_irqsave(&info->irq_spinlock,flags);
-			usc_start_receiver(info);
-			spin_unlock_irqrestore(&info->irq_spinlock,flags);
-			return;
-		}
-	} while(get_rx_frame(info));
-}
-
-static void mgsl_bh_transmit(struct mgsl_struct *info)
-{
-	struct tty_struct *tty = info->port.tty;
-	unsigned long flags;
-	
-	if ( debug_level >= DEBUG_LEVEL_BH )
-		printk( "%s(%d):mgsl_bh_transmit() entry on %s\n",
-			__FILE__,__LINE__,info->device_name);
-
-	if (tty)
-		tty_wakeup(tty);
-
-	/* if transmitter idle and loopmode_send_done_requested
-	 * then start echoing RxD to TxD
-	 */
-	spin_lock_irqsave(&info->irq_spinlock,flags);
- 	if ( !info->tx_active && info->loopmode_send_done_requested )
- 		usc_loopmode_send_done( info );
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-}
-
-static void mgsl_bh_status(struct mgsl_struct *info)
-{
-	if ( debug_level >= DEBUG_LEVEL_BH )
-		printk( "%s(%d):mgsl_bh_status() entry on %s\n",
-			__FILE__,__LINE__,info->device_name);
-
-	info->ri_chkcount = 0;
-	info->dsr_chkcount = 0;
-	info->dcd_chkcount = 0;
-	info->cts_chkcount = 0;
-}
-
-/* mgsl_isr_receive_status()
- * 
- *	Service a receive status interrupt. The type of status
- *	interrupt is indicated by the state of the RCSR.
- *	This is only used for HDLC mode.
- *
- * Arguments:		info	pointer to device instance data
- * Return Value:	None
- */
-static void mgsl_isr_receive_status( struct mgsl_struct *info )
-{
-	u16 status = usc_InReg( info, RCSR );
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )	
-		printk("%s(%d):mgsl_isr_receive_status status=%04X\n",
-			__FILE__,__LINE__,status);
-			
- 	if ( (status & RXSTATUS_ABORT_RECEIVED) && 
-		info->loopmode_insert_requested &&
- 		usc_loopmode_active(info) )
- 	{
-		++info->icount.rxabort;
-	 	info->loopmode_insert_requested = false;
- 
- 		/* clear CMR:13 to start echoing RxD to TxD */
-		info->cmr_value &= ~BIT13;
- 		usc_OutReg(info, CMR, info->cmr_value);
- 
-		/* disable received abort irq (no longer required) */
-	 	usc_OutReg(info, RICR,
- 			(usc_InReg(info, RICR) & ~RXSTATUS_ABORT_RECEIVED));
- 	}
-
-	if (status & (RXSTATUS_EXITED_HUNT + RXSTATUS_IDLE_RECEIVED)) {
-		if (status & RXSTATUS_EXITED_HUNT)
-			info->icount.exithunt++;
-		if (status & RXSTATUS_IDLE_RECEIVED)
-			info->icount.rxidle++;
-		wake_up_interruptible(&info->event_wait_q);
-	}
-
-	if (status & RXSTATUS_OVERRUN){
-		info->icount.rxover++;
-		usc_process_rxoverrun_sync( info );
-	}
-
-	usc_ClearIrqPendingBits( info, RECEIVE_STATUS );
-	usc_UnlatchRxstatusBits( info, status );
-
-}	/* end of mgsl_isr_receive_status() */
-
-/* mgsl_isr_transmit_status()
- * 
- * 	Service a transmit status interrupt
- *	HDLC mode :end of transmit frame
- *	Async mode:all data is sent
- * 	transmit status is indicated by bits in the TCSR.
- * 
- * Arguments:		info	       pointer to device instance data
- * Return Value:	None
- */
-static void mgsl_isr_transmit_status( struct mgsl_struct *info )
-{
-	u16 status = usc_InReg( info, TCSR );
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )	
-		printk("%s(%d):mgsl_isr_transmit_status status=%04X\n",
-			__FILE__,__LINE__,status);
-	
-	usc_ClearIrqPendingBits( info, TRANSMIT_STATUS );
-	usc_UnlatchTxstatusBits( info, status );
-	
-	if ( status & (TXSTATUS_UNDERRUN | TXSTATUS_ABORT_SENT) )
-	{
-		/* finished sending HDLC abort. This may leave	*/
-		/* the TxFifo with data from the aborted frame	*/
-		/* so purge the TxFifo. Also shutdown the DMA	*/
-		/* channel in case there is data remaining in 	*/
-		/* the DMA buffer				*/
- 		usc_DmaCmd( info, DmaCmd_ResetTxChannel );
- 		usc_RTCmd( info, RTCmd_PurgeTxFifo );
-	}
- 
-	if ( status & TXSTATUS_EOF_SENT )
-		info->icount.txok++;
-	else if ( status & TXSTATUS_UNDERRUN )
-		info->icount.txunder++;
-	else if ( status & TXSTATUS_ABORT_SENT )
-		info->icount.txabort++;
-	else
-		info->icount.txunder++;
-			
-	info->tx_active = false;
-	info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
-	del_timer(&info->tx_timer);	
-	
-	if ( info->drop_rts_on_tx_done ) {
-		usc_get_serial_signals( info );
-		if ( info->serial_signals & SerialSignal_RTS ) {
-			info->serial_signals &= ~SerialSignal_RTS;
-			usc_set_serial_signals( info );
-		}
-		info->drop_rts_on_tx_done = false;
-	}
-
-#if SYNCLINK_GENERIC_HDLC
-	if (info->netcount)
-		hdlcdev_tx_done(info);
-	else 
-#endif
-	{
-		if (info->port.tty->stopped || info->port.tty->hw_stopped) {
-			usc_stop_transmitter(info);
-			return;
-		}
-		info->pending_bh |= BH_TRANSMIT;
-	}
-
-}	/* end of mgsl_isr_transmit_status() */
-
-/* mgsl_isr_io_pin()
- * 
- * 	Service an Input/Output pin interrupt. The type of
- * 	interrupt is indicated by bits in the MISR
- * 	
- * Arguments:		info	       pointer to device instance data
- * Return Value:	None
- */
-static void mgsl_isr_io_pin( struct mgsl_struct *info )
-{
- 	struct	mgsl_icount *icount;
-	u16 status = usc_InReg( info, MISR );
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )	
-		printk("%s(%d):mgsl_isr_io_pin status=%04X\n",
-			__FILE__,__LINE__,status);
-			
-	usc_ClearIrqPendingBits( info, IO_PIN );
-	usc_UnlatchIostatusBits( info, status );
-
-	if (status & (MISCSTATUS_CTS_LATCHED | MISCSTATUS_DCD_LATCHED |
-	              MISCSTATUS_DSR_LATCHED | MISCSTATUS_RI_LATCHED) ) {
-		icount = &info->icount;
-		/* update input line counters */
-		if (status & MISCSTATUS_RI_LATCHED) {
-			if ((info->ri_chkcount)++ >= IO_PIN_SHUTDOWN_LIMIT)
-				usc_DisablestatusIrqs(info,SICR_RI);
-			icount->rng++;
-			if ( status & MISCSTATUS_RI )
-				info->input_signal_events.ri_up++;	
-			else
-				info->input_signal_events.ri_down++;	
-		}
-		if (status & MISCSTATUS_DSR_LATCHED) {
-			if ((info->dsr_chkcount)++ >= IO_PIN_SHUTDOWN_LIMIT)
-				usc_DisablestatusIrqs(info,SICR_DSR);
-			icount->dsr++;
-			if ( status & MISCSTATUS_DSR )
-				info->input_signal_events.dsr_up++;
-			else
-				info->input_signal_events.dsr_down++;
-		}
-		if (status & MISCSTATUS_DCD_LATCHED) {
-			if ((info->dcd_chkcount)++ >= IO_PIN_SHUTDOWN_LIMIT)
-				usc_DisablestatusIrqs(info,SICR_DCD);
-			icount->dcd++;
-			if (status & MISCSTATUS_DCD) {
-				info->input_signal_events.dcd_up++;
-			} else
-				info->input_signal_events.dcd_down++;
-#if SYNCLINK_GENERIC_HDLC
-			if (info->netcount) {
-				if (status & MISCSTATUS_DCD)
-					netif_carrier_on(info->netdev);
-				else
-					netif_carrier_off(info->netdev);
-			}
-#endif
-		}
-		if (status & MISCSTATUS_CTS_LATCHED)
-		{
-			if ((info->cts_chkcount)++ >= IO_PIN_SHUTDOWN_LIMIT)
-				usc_DisablestatusIrqs(info,SICR_CTS);
-			icount->cts++;
-			if ( status & MISCSTATUS_CTS )
-				info->input_signal_events.cts_up++;
-			else
-				info->input_signal_events.cts_down++;
-		}
-		wake_up_interruptible(&info->status_event_wait_q);
-		wake_up_interruptible(&info->event_wait_q);
-
-		if ( (info->port.flags & ASYNC_CHECK_CD) && 
-		     (status & MISCSTATUS_DCD_LATCHED) ) {
-			if ( debug_level >= DEBUG_LEVEL_ISR )
-				printk("%s CD now %s...", info->device_name,
-				       (status & MISCSTATUS_DCD) ? "on" : "off");
-			if (status & MISCSTATUS_DCD)
-				wake_up_interruptible(&info->port.open_wait);
-			else {
-				if ( debug_level >= DEBUG_LEVEL_ISR )
-					printk("doing serial hangup...");
-				if (info->port.tty)
-					tty_hangup(info->port.tty);
-			}
-		}
-	
-		if ( (info->port.flags & ASYNC_CTS_FLOW) && 
-		     (status & MISCSTATUS_CTS_LATCHED) ) {
-			if (info->port.tty->hw_stopped) {
-				if (status & MISCSTATUS_CTS) {
-					if ( debug_level >= DEBUG_LEVEL_ISR )
-						printk("CTS tx start...");
-					if (info->port.tty)
-						info->port.tty->hw_stopped = 0;
-					usc_start_transmitter(info);
-					info->pending_bh |= BH_TRANSMIT;
-					return;
-				}
-			} else {
-				if (!(status & MISCSTATUS_CTS)) {
-					if ( debug_level >= DEBUG_LEVEL_ISR )
-						printk("CTS tx stop...");
-					if (info->port.tty)
-						info->port.tty->hw_stopped = 1;
-					usc_stop_transmitter(info);
-				}
-			}
-		}
-	}
-
-	info->pending_bh |= BH_STATUS;
-	
-	/* for diagnostics set IRQ flag */
-	if ( status & MISCSTATUS_TXC_LATCHED ){
-		usc_OutReg( info, SICR,
-			(unsigned short)(usc_InReg(info,SICR) & ~(SICR_TXC_ACTIVE+SICR_TXC_INACTIVE)) );
-		usc_UnlatchIostatusBits( info, MISCSTATUS_TXC_LATCHED );
-		info->irq_occurred = true;
-	}
-
-}	/* end of mgsl_isr_io_pin() */
-
-/* mgsl_isr_transmit_data()
- * 
- * 	Service a transmit data interrupt (async mode only).
- * 
- * Arguments:		info	pointer to device instance data
- * Return Value:	None
- */
-static void mgsl_isr_transmit_data( struct mgsl_struct *info )
-{
-	if ( debug_level >= DEBUG_LEVEL_ISR )	
-		printk("%s(%d):mgsl_isr_transmit_data xmit_cnt=%d\n",
-			__FILE__,__LINE__,info->xmit_cnt);
-			
-	usc_ClearIrqPendingBits( info, TRANSMIT_DATA );
-	
-	if (info->port.tty->stopped || info->port.tty->hw_stopped) {
-		usc_stop_transmitter(info);
-		return;
-	}
-	
-	if ( info->xmit_cnt )
-		usc_load_txfifo( info );
-	else
-		info->tx_active = false;
-		
-	if (info->xmit_cnt < WAKEUP_CHARS)
-		info->pending_bh |= BH_TRANSMIT;
-
-}	/* end of mgsl_isr_transmit_data() */
-
-/* mgsl_isr_receive_data()
- * 
- * 	Service a receive data interrupt. This occurs
- * 	when operating in asynchronous interrupt transfer mode.
- *	The receive data FIFO is flushed to the receive data buffers. 
- * 
- * Arguments:		info		pointer to device instance data
- * Return Value:	None
- */
-static void mgsl_isr_receive_data( struct mgsl_struct *info )
-{
-	int Fifocount;
-	u16 status;
-	int work = 0;
-	unsigned char DataByte;
- 	struct tty_struct *tty = info->port.tty;
- 	struct	mgsl_icount *icount = &info->icount;
-	
-	if ( debug_level >= DEBUG_LEVEL_ISR )	
-		printk("%s(%d):mgsl_isr_receive_data\n",
-			__FILE__,__LINE__);
-
-	usc_ClearIrqPendingBits( info, RECEIVE_DATA );
-	
-	/* select FIFO status for RICR readback */
-	usc_RCmd( info, RCmd_SelectRicrRxFifostatus );
-
-	/* clear the Wordstatus bit so that status readback */
-	/* only reflects the status of this byte */
-	usc_OutReg( info, RICR+LSBONLY, (u16)(usc_InReg(info, RICR+LSBONLY) & ~BIT3 ));
-
-	/* flush the receive FIFO */
-
-	while( (Fifocount = (usc_InReg(info,RICR) >> 8)) ) {
-		int flag;
-
-		/* read one byte from RxFIFO */
-		outw( (inw(info->io_base + CCAR) & 0x0780) | (RDR+LSBONLY),
-		      info->io_base + CCAR );
-		DataByte = inb( info->io_base + CCAR );
-
-		/* get the status of the received byte */
-		status = usc_InReg(info, RCSR);
-		if ( status & (RXSTATUS_FRAMING_ERROR + RXSTATUS_PARITY_ERROR +
-				RXSTATUS_OVERRUN + RXSTATUS_BREAK_RECEIVED) )
-			usc_UnlatchRxstatusBits(info,RXSTATUS_ALL);
-		
-		icount->rx++;
-		
-		flag = 0;
-		if ( status & (RXSTATUS_FRAMING_ERROR + RXSTATUS_PARITY_ERROR +
-				RXSTATUS_OVERRUN + RXSTATUS_BREAK_RECEIVED) ) {
-			printk("rxerr=%04X\n",status);					
-			/* update error statistics */
-			if ( status & RXSTATUS_BREAK_RECEIVED ) {
-				status &= ~(RXSTATUS_FRAMING_ERROR + RXSTATUS_PARITY_ERROR);
-				icount->brk++;
-			} else if (status & RXSTATUS_PARITY_ERROR) 
-				icount->parity++;
-			else if (status & RXSTATUS_FRAMING_ERROR)
-				icount->frame++;
-			else if (status & RXSTATUS_OVERRUN) {
-				/* must issue purge fifo cmd before */
-				/* 16C32 accepts more receive chars */
-				usc_RTCmd(info,RTCmd_PurgeRxFifo);
-				icount->overrun++;
-			}
-
-			/* discard char if tty control flags say so */					
-			if (status & info->ignore_status_mask)
-				continue;
-				
-			status &= info->read_status_mask;
-		
-			if (status & RXSTATUS_BREAK_RECEIVED) {
-				flag = TTY_BREAK;
-				if (info->port.flags & ASYNC_SAK)
-					do_SAK(tty);
-			} else if (status & RXSTATUS_PARITY_ERROR)
-				flag = TTY_PARITY;
-			else if (status & RXSTATUS_FRAMING_ERROR)
-				flag = TTY_FRAME;
-		}	/* end of if (error) */
-		tty_insert_flip_char(tty, DataByte, flag);
-		if (status & RXSTATUS_OVERRUN) {
-			/* Overrun is special, since it's
-			 * reported immediately, and doesn't
-			 * affect the current character
-			 */
-			work += tty_insert_flip_char(tty, 0, TTY_OVERRUN);
-		}
-	}
-
-	if ( debug_level >= DEBUG_LEVEL_ISR ) {
-		printk("%s(%d):rx=%d brk=%d parity=%d frame=%d overrun=%d\n",
-			__FILE__,__LINE__,icount->rx,icount->brk,
-			icount->parity,icount->frame,icount->overrun);
-	}
-			
-	if(work)
-		tty_flip_buffer_push(tty);
-}
-
-/* mgsl_isr_misc()
- * 
- * 	Service a miscellaneous interrupt source.
- * 	
- * Arguments:		info		pointer to device extension (instance data)
- * Return Value:	None
- */
-static void mgsl_isr_misc( struct mgsl_struct *info )
-{
-	u16 status = usc_InReg( info, MISR );
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )	
-		printk("%s(%d):mgsl_isr_misc status=%04X\n",
-			__FILE__,__LINE__,status);
-			
-	if ((status & MISCSTATUS_RCC_UNDERRUN) &&
-	    (info->params.mode == MGSL_MODE_HDLC)) {
-
-		/* turn off receiver and rx DMA */
-		usc_EnableReceiver(info,DISABLE_UNCONDITIONAL);
-		usc_DmaCmd(info, DmaCmd_ResetRxChannel);
-		usc_UnlatchRxstatusBits(info, RXSTATUS_ALL);
-		usc_ClearIrqPendingBits(info, RECEIVE_DATA + RECEIVE_STATUS);
-		usc_DisableInterrupts(info, RECEIVE_DATA + RECEIVE_STATUS);
-
-		/* schedule BH handler to restart receiver */
-		info->pending_bh |= BH_RECEIVE;
-		info->rx_rcc_underrun = true;
-	}
-
-	usc_ClearIrqPendingBits( info, MISC );
-	usc_UnlatchMiscstatusBits( info, status );
-
-}	/* end of mgsl_isr_misc() */
-
-/* mgsl_isr_null()
- *
- * 	Services undefined interrupt vectors from the
- * 	USC. (hence this function SHOULD never be called)
- * 
- * Arguments:		info		pointer to device extension (instance data)
- * Return Value:	None
- */
-static void mgsl_isr_null( struct mgsl_struct *info )
-{
-
-}	/* end of mgsl_isr_null() */
-
-/* mgsl_isr_receive_dma()
- * 
- * 	Service a receive DMA channel interrupt.
- * 	For this driver there are two sources of receive DMA interrupts
- * 	as identified in the Receive DMA mode Register (RDMR):
- * 
- * 	BIT3	EOA/EOL		End of List, all receive buffers in receive
- * 				buffer list have been filled (no more free buffers
- * 				available). The DMA controller has shut down.
- * 
- * 	BIT2	EOB		End of Buffer. This interrupt occurs when a receive
- * 				DMA buffer is terminated in response to completion
- * 				of a good frame or a frame with errors. The status
- * 				of the frame is stored in the buffer entry in the
- * 				list of receive buffer entries.
- * 
- * Arguments:		info		pointer to device instance data
- * Return Value:	None
- */
-static void mgsl_isr_receive_dma( struct mgsl_struct *info )
-{
-	u16 status;
-	
-	/* clear interrupt pending and IUS bit for Rx DMA IRQ */
-	usc_OutDmaReg( info, CDIR, BIT9+BIT1 );
-
-	/* Read the receive DMA status to identify interrupt type. */
-	/* This also clears the status bits. */
-	status = usc_InDmaReg( info, RDMR );
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )	
-		printk("%s(%d):mgsl_isr_receive_dma(%s) status=%04X\n",
-			__FILE__,__LINE__,info->device_name,status);
-			
-	info->pending_bh |= BH_RECEIVE;
-	
-	if ( status & BIT3 ) {
-		info->rx_overflow = true;
-		info->icount.buf_overrun++;
-	}
-
-}	/* end of mgsl_isr_receive_dma() */
-
-/* mgsl_isr_transmit_dma()
- *
- *	This function services a transmit DMA channel interrupt.
- *
- *	For this driver there is one source of transmit DMA interrupts
- *	as identified in the Transmit DMA Mode Register (TDMR):
- *
- *     	BIT2  EOB       End of Buffer. This interrupt occurs when a
- *     			transmit DMA buffer has been emptied.
- *
- *     	The driver maintains enough transmit DMA buffers to hold at least
- *     	one max frame size transmit frame. When operating in a buffered
- *     	transmit mode, there may be enough transmit DMA buffers to hold at
- *     	least two or more max frame size frames. On an EOB condition,
- *     	determine if there are any queued transmit buffers and copy into
- *     	transmit DMA buffers if we have room.
- *
- * Arguments:		info		pointer to device instance data
- * Return Value:	None
- */
-static void mgsl_isr_transmit_dma( struct mgsl_struct *info )
-{
-	u16 status;
-
-	/* clear interrupt pending and IUS bit for Tx DMA IRQ */
-	usc_OutDmaReg(info, CDIR, BIT8+BIT0 );
-
-	/* Read the transmit DMA status to identify interrupt type. */
-	/* This also clears the status bits. */
-
-	status = usc_InDmaReg( info, TDMR );
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk("%s(%d):mgsl_isr_transmit_dma(%s) status=%04X\n",
-			__FILE__,__LINE__,info->device_name,status);
-
-	if ( status & BIT2 ) {
-		--info->tx_dma_buffers_used;
-
-		/* if there are transmit frames queued,
-		 *  try to load the next one
-		 */
-		if ( load_next_tx_holding_buffer(info) ) {
-			/* if call returns non-zero value, we have
-			 * at least one free tx holding buffer
-			 */
-			info->pending_bh |= BH_TRANSMIT;
-		}
-	}
-
-}	/* end of mgsl_isr_transmit_dma() */
-
-/* mgsl_interrupt()
- * 
- * 	Interrupt service routine entry point.
- * 	
- * Arguments:
- * 
- * 	irq		interrupt number that caused interrupt
- * 	dev_id		device ID supplied during interrupt registration
- * 	
- * Return Value: None
- */
-static irqreturn_t mgsl_interrupt(int dummy, void *dev_id)
-{
-	struct mgsl_struct *info = dev_id;
-	u16 UscVector;
-	u16 DmaVector;
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )	
-		printk(KERN_DEBUG "%s(%d):mgsl_interrupt(%d)entry.\n",
-			__FILE__, __LINE__, info->irq_level);
-
-	spin_lock(&info->irq_spinlock);
-
-	for(;;) {
-		/* Read the interrupt vectors from hardware. */
-		UscVector = usc_InReg(info, IVR) >> 9;
-		DmaVector = usc_InDmaReg(info, DIVR);
-		
-		if ( debug_level >= DEBUG_LEVEL_ISR )	
-			printk("%s(%d):%s UscVector=%08X DmaVector=%08X\n",
-				__FILE__,__LINE__,info->device_name,UscVector,DmaVector);
-			
-		if ( !UscVector && !DmaVector )
-			break;
-			
-		/* Dispatch interrupt vector */
-		if ( UscVector )
-			(*UscIsrTable[UscVector])(info);
-		else if ( (DmaVector&(BIT10|BIT9)) == BIT10)
-			mgsl_isr_transmit_dma(info);
-		else
-			mgsl_isr_receive_dma(info);
-
-		if ( info->isr_overflow ) {
-			printk(KERN_ERR "%s(%d):%s isr overflow irq=%d\n",
-				__FILE__, __LINE__, info->device_name, info->irq_level);
-			usc_DisableMasterIrqBit(info);
-			usc_DisableDmaInterrupts(info,DICR_MASTER);
-			break;
-		}
-	}
-	
-	/* Request bottom half processing if there's something 
-	 * for it to do and the bh is not already running
-	 */
-
-	if ( info->pending_bh && !info->bh_running && !info->bh_requested ) {
-		if ( debug_level >= DEBUG_LEVEL_ISR )	
-			printk("%s(%d):%s queueing bh task.\n",
-				__FILE__,__LINE__,info->device_name);
-		schedule_work(&info->task);
-		info->bh_requested = true;
-	}
-
-	spin_unlock(&info->irq_spinlock);
-	
-	if ( debug_level >= DEBUG_LEVEL_ISR )	
-		printk(KERN_DEBUG "%s(%d):mgsl_interrupt(%d)exit.\n",
-			__FILE__, __LINE__, info->irq_level);
-
-	return IRQ_HANDLED;
-}	/* end of mgsl_interrupt() */
-
-/* startup()
- * 
- * 	Initialize and start device.
- * 	
- * Arguments:		info	pointer to device instance data
- * Return Value:	0 if success, otherwise error code
- */
-static int startup(struct mgsl_struct * info)
-{
-	int retval = 0;
-	
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk("%s(%d):mgsl_startup(%s)\n",__FILE__,__LINE__,info->device_name);
-		
-	if (info->port.flags & ASYNC_INITIALIZED)
-		return 0;
-	
-	if (!info->xmit_buf) {
-		/* allocate a page of memory for a transmit buffer */
-		info->xmit_buf = (unsigned char *)get_zeroed_page(GFP_KERNEL);
-		if (!info->xmit_buf) {
-			printk(KERN_ERR"%s(%d):%s can't allocate transmit buffer\n",
-				__FILE__,__LINE__,info->device_name);
-			return -ENOMEM;
-		}
-	}
-
-	info->pending_bh = 0;
-	
-	memset(&info->icount, 0, sizeof(info->icount));
-
-	setup_timer(&info->tx_timer, mgsl_tx_timeout, (unsigned long)info);
-	
-	/* Allocate and claim adapter resources */
-	retval = mgsl_claim_resources(info);
-	
-	/* perform existence check and diagnostics */
-	if ( !retval )
-		retval = mgsl_adapter_test(info);
-		
-	if ( retval ) {
-  		if (capable(CAP_SYS_ADMIN) && info->port.tty)
-			set_bit(TTY_IO_ERROR, &info->port.tty->flags);
-		mgsl_release_resources(info);
-  		return retval;
-  	}
-
-	/* program hardware for current parameters */
-	mgsl_change_params(info);
-	
-	if (info->port.tty)
-		clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
-
-	info->port.flags |= ASYNC_INITIALIZED;
-	
-	return 0;
-	
-}	/* end of startup() */
-
-/* shutdown()
- *
- * Called by mgsl_close() and mgsl_hangup() to shutdown hardware
- *
- * Arguments:		info	pointer to device instance data
- * Return Value:	None
- */
-static void shutdown(struct mgsl_struct * info)
-{
-	unsigned long flags;
-	
-	if (!(info->port.flags & ASYNC_INITIALIZED))
-		return;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_shutdown(%s)\n",
-			 __FILE__,__LINE__, info->device_name );
-
-	/* clear status wait queue because status changes */
-	/* can't happen after shutting down the hardware */
-	wake_up_interruptible(&info->status_event_wait_q);
-	wake_up_interruptible(&info->event_wait_q);
-
-	del_timer_sync(&info->tx_timer);
-
-	if (info->xmit_buf) {
-		free_page((unsigned long) info->xmit_buf);
-		info->xmit_buf = NULL;
-	}
-
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-	usc_DisableMasterIrqBit(info);
-	usc_stop_receiver(info);
-	usc_stop_transmitter(info);
-	usc_DisableInterrupts(info,RECEIVE_DATA + RECEIVE_STATUS +
-		TRANSMIT_DATA + TRANSMIT_STATUS + IO_PIN + MISC );
-	usc_DisableDmaInterrupts(info,DICR_MASTER + DICR_TRANSMIT + DICR_RECEIVE);
-	
-	/* Disable DMAEN (Port 7, Bit 14) */
-	/* This disconnects the DMA request signal from the ISA bus */
-	/* on the ISA adapter. This has no effect for the PCI adapter */
-	usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT15) | BIT14));
-	
-	/* Disable INTEN (Port 6, Bit12) */
-	/* This disconnects the IRQ request signal to the ISA bus */
-	/* on the ISA adapter. This has no effect for the PCI adapter */
-	usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT13) | BIT12));
-	
- 	if (!info->port.tty || info->port.tty->termios->c_cflag & HUPCL) {
- 		info->serial_signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
-		usc_set_serial_signals(info);
-	}
-	
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-	mgsl_release_resources(info);	
-	
-	if (info->port.tty)
-		set_bit(TTY_IO_ERROR, &info->port.tty->flags);
-
-	info->port.flags &= ~ASYNC_INITIALIZED;
-	
-}	/* end of shutdown() */
-
-static void mgsl_program_hw(struct mgsl_struct *info)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-	
-	usc_stop_receiver(info);
-	usc_stop_transmitter(info);
-	info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
-	
-	if (info->params.mode == MGSL_MODE_HDLC ||
-	    info->params.mode == MGSL_MODE_RAW ||
-	    info->netcount)
-		usc_set_sync_mode(info);
-	else
-		usc_set_async_mode(info);
-		
-	usc_set_serial_signals(info);
-	
-	info->dcd_chkcount = 0;
-	info->cts_chkcount = 0;
-	info->ri_chkcount = 0;
-	info->dsr_chkcount = 0;
-
-	usc_EnableStatusIrqs(info,SICR_CTS+SICR_DSR+SICR_DCD+SICR_RI);		
-	usc_EnableInterrupts(info, IO_PIN);
-	usc_get_serial_signals(info);
-		
-	if (info->netcount || info->port.tty->termios->c_cflag & CREAD)
-		usc_start_receiver(info);
-		
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-}
-
-/* Reconfigure adapter based on new parameters
- */
-static void mgsl_change_params(struct mgsl_struct *info)
-{
-	unsigned cflag;
-	int bits_per_char;
-
-	if (!info->port.tty || !info->port.tty->termios)
-		return;
-		
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_change_params(%s)\n",
-			 __FILE__,__LINE__, info->device_name );
-			 
-	cflag = info->port.tty->termios->c_cflag;
-
-	/* if B0 rate (hangup) specified then negate DTR and RTS */
-	/* otherwise assert DTR and RTS */
- 	if (cflag & CBAUD)
-		info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR;
-	else
-		info->serial_signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
-	
-	/* byte size and parity */
-	
-	switch (cflag & CSIZE) {
-	      case CS5: info->params.data_bits = 5; break;
-	      case CS6: info->params.data_bits = 6; break;
-	      case CS7: info->params.data_bits = 7; break;
-	      case CS8: info->params.data_bits = 8; break;
-	      /* Never happens, but GCC is too dumb to figure it out */
-	      default:  info->params.data_bits = 7; break;
-	      }
-	      
-	if (cflag & CSTOPB)
-		info->params.stop_bits = 2;
-	else
-		info->params.stop_bits = 1;
-
-	info->params.parity = ASYNC_PARITY_NONE;
-	if (cflag & PARENB) {
-		if (cflag & PARODD)
-			info->params.parity = ASYNC_PARITY_ODD;
-		else
-			info->params.parity = ASYNC_PARITY_EVEN;
-#ifdef CMSPAR
-		if (cflag & CMSPAR)
-			info->params.parity = ASYNC_PARITY_SPACE;
-#endif
-	}
-
-	/* calculate number of jiffies to transmit a full
-	 * FIFO (32 bytes) at specified data rate
-	 */
-	bits_per_char = info->params.data_bits + 
-			info->params.stop_bits + 1;
-
-	/* if port data rate is set to 460800 or less then
-	 * allow tty settings to override, otherwise keep the
-	 * current data rate.
-	 */
-	if (info->params.data_rate <= 460800)
-		info->params.data_rate = tty_get_baud_rate(info->port.tty);
-	
-	if ( info->params.data_rate ) {
-		info->timeout = (32*HZ*bits_per_char) / 
-				info->params.data_rate;
-	}
-	info->timeout += HZ/50;		/* Add .02 seconds of slop */
-
-	if (cflag & CRTSCTS)
-		info->port.flags |= ASYNC_CTS_FLOW;
-	else
-		info->port.flags &= ~ASYNC_CTS_FLOW;
-		
-	if (cflag & CLOCAL)
-		info->port.flags &= ~ASYNC_CHECK_CD;
-	else
-		info->port.flags |= ASYNC_CHECK_CD;
-
-	/* process tty input control flags */
-	
-	info->read_status_mask = RXSTATUS_OVERRUN;
-	if (I_INPCK(info->port.tty))
-		info->read_status_mask |= RXSTATUS_PARITY_ERROR | RXSTATUS_FRAMING_ERROR;
- 	if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))
- 		info->read_status_mask |= RXSTATUS_BREAK_RECEIVED;
-	
-	if (I_IGNPAR(info->port.tty))
-		info->ignore_status_mask |= RXSTATUS_PARITY_ERROR | RXSTATUS_FRAMING_ERROR;
-	if (I_IGNBRK(info->port.tty)) {
-		info->ignore_status_mask |= RXSTATUS_BREAK_RECEIVED;
-		/* If ignoring parity and break indicators, ignore 
-		 * overruns too.  (For real raw support).
-		 */
-		if (I_IGNPAR(info->port.tty))
-			info->ignore_status_mask |= RXSTATUS_OVERRUN;
-	}
-
-	mgsl_program_hw(info);
-
-}	/* end of mgsl_change_params() */
-
-/* mgsl_put_char()
- * 
- * 	Add a character to the transmit buffer.
- * 	
- * Arguments:		tty	pointer to tty information structure
- * 			ch	character to add to transmit buffer
- * 		
- * Return Value:	None
- */
-static int mgsl_put_char(struct tty_struct *tty, unsigned char ch)
-{
-	struct mgsl_struct *info = tty->driver_data;
-	unsigned long flags;
-	int ret = 0;
-
-	if (debug_level >= DEBUG_LEVEL_INFO) {
-		printk(KERN_DEBUG "%s(%d):mgsl_put_char(%d) on %s\n",
-			__FILE__, __LINE__, ch, info->device_name);
-	}		
-	
-	if (mgsl_paranoia_check(info, tty->name, "mgsl_put_char"))
-		return 0;
-
-	if (!info->xmit_buf)
-		return 0;
-
-	spin_lock_irqsave(&info->irq_spinlock, flags);
-	
-	if ((info->params.mode == MGSL_MODE_ASYNC ) || !info->tx_active) {
-		if (info->xmit_cnt < SERIAL_XMIT_SIZE - 1) {
-			info->xmit_buf[info->xmit_head++] = ch;
-			info->xmit_head &= SERIAL_XMIT_SIZE-1;
-			info->xmit_cnt++;
-			ret = 1;
-		}
-	}
-	spin_unlock_irqrestore(&info->irq_spinlock, flags);
-	return ret;
-	
-}	/* end of mgsl_put_char() */
-
-/* mgsl_flush_chars()
- * 
- * 	Enable transmitter so remaining characters in the
- * 	transmit buffer are sent.
- * 	
- * Arguments:		tty	pointer to tty information structure
- * Return Value:	None
- */
-static void mgsl_flush_chars(struct tty_struct *tty)
-{
-	struct mgsl_struct *info = tty->driver_data;
-	unsigned long flags;
-				
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk( "%s(%d):mgsl_flush_chars() entry on %s xmit_cnt=%d\n",
-			__FILE__,__LINE__,info->device_name,info->xmit_cnt);
-	
-	if (mgsl_paranoia_check(info, tty->name, "mgsl_flush_chars"))
-		return;
-
-	if (info->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped ||
-	    !info->xmit_buf)
-		return;
-
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk( "%s(%d):mgsl_flush_chars() entry on %s starting transmitter\n",
-			__FILE__,__LINE__,info->device_name );
-
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-	
-	if (!info->tx_active) {
-		if ( (info->params.mode == MGSL_MODE_HDLC ||
-			info->params.mode == MGSL_MODE_RAW) && info->xmit_cnt ) {
-			/* operating in synchronous (frame oriented) mode */
-			/* copy data from circular xmit_buf to */
-			/* transmit DMA buffer. */
-			mgsl_load_tx_dma_buffer(info,
-				 info->xmit_buf,info->xmit_cnt);
-		}
-	 	usc_start_transmitter(info);
-	}
-	
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-	
-}	/* end of mgsl_flush_chars() */
-
-/* mgsl_write()
- * 
- * 	Send a block of data
- * 	
- * Arguments:
- * 
- * 	tty		pointer to tty information structure
- * 	buf		pointer to buffer containing send data
- * 	count		size of send data in bytes
- * 	
- * Return Value:	number of characters written
- */
-static int mgsl_write(struct tty_struct * tty,
-		    const unsigned char *buf, int count)
-{
-	int	c, ret = 0;
-	struct mgsl_struct *info = tty->driver_data;
-	unsigned long flags;
-	
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk( "%s(%d):mgsl_write(%s) count=%d\n",
-			__FILE__,__LINE__,info->device_name,count);
-	
-	if (mgsl_paranoia_check(info, tty->name, "mgsl_write"))
-		goto cleanup;
-
-	if (!info->xmit_buf)
-		goto cleanup;
-
-	if ( info->params.mode == MGSL_MODE_HDLC ||
-			info->params.mode == MGSL_MODE_RAW ) {
-		/* operating in synchronous (frame oriented) mode */
-		/* operating in synchronous (frame oriented) mode */
-		if (info->tx_active) {
-
-			if ( info->params.mode == MGSL_MODE_HDLC ) {
-				ret = 0;
-				goto cleanup;
-			}
-			/* transmitter is actively sending data -
-			 * if we have multiple transmit dma and
-			 * holding buffers, attempt to queue this
-			 * frame for transmission at a later time.
-			 */
-			if (info->tx_holding_count >= info->num_tx_holding_buffers ) {
-				/* no tx holding buffers available */
-				ret = 0;
-				goto cleanup;
-			}
-
-			/* queue transmit frame request */
-			ret = count;
-			save_tx_buffer_request(info,buf,count);
-
-			/* if we have sufficient tx dma buffers,
-			 * load the next buffered tx request
-			 */
-			spin_lock_irqsave(&info->irq_spinlock,flags);
-			load_next_tx_holding_buffer(info);
-			spin_unlock_irqrestore(&info->irq_spinlock,flags);
-			goto cleanup;
-		}
-	
-		/* if operating in HDLC LoopMode and the adapter  */
-		/* has yet to be inserted into the loop, we can't */
-		/* transmit					  */
-
-		if ( (info->params.flags & HDLC_FLAG_HDLC_LOOPMODE) &&
-			!usc_loopmode_active(info) )
-		{
-			ret = 0;
-			goto cleanup;
-		}
-
-		if ( info->xmit_cnt ) {
-			/* Send accumulated from send_char() calls */
-			/* as frame and wait before accepting more data. */
-			ret = 0;
-			
-			/* copy data from circular xmit_buf to */
-			/* transmit DMA buffer. */
-			mgsl_load_tx_dma_buffer(info,
-				info->xmit_buf,info->xmit_cnt);
-			if ( debug_level >= DEBUG_LEVEL_INFO )
-				printk( "%s(%d):mgsl_write(%s) sync xmit_cnt flushing\n",
-					__FILE__,__LINE__,info->device_name);
-		} else {
-			if ( debug_level >= DEBUG_LEVEL_INFO )
-				printk( "%s(%d):mgsl_write(%s) sync transmit accepted\n",
-					__FILE__,__LINE__,info->device_name);
-			ret = count;
-			info->xmit_cnt = count;
-			mgsl_load_tx_dma_buffer(info,buf,count);
-		}
-	} else {
-		while (1) {
-			spin_lock_irqsave(&info->irq_spinlock,flags);
-			c = min_t(int, count,
-				min(SERIAL_XMIT_SIZE - info->xmit_cnt - 1,
-				    SERIAL_XMIT_SIZE - info->xmit_head));
-			if (c <= 0) {
-				spin_unlock_irqrestore(&info->irq_spinlock,flags);
-				break;
-			}
-			memcpy(info->xmit_buf + info->xmit_head, buf, c);
-			info->xmit_head = ((info->xmit_head + c) &
-					   (SERIAL_XMIT_SIZE-1));
-			info->xmit_cnt += c;
-			spin_unlock_irqrestore(&info->irq_spinlock,flags);
-			buf += c;
-			count -= c;
-			ret += c;
-		}
-	}	
-	
- 	if (info->xmit_cnt && !tty->stopped && !tty->hw_stopped) {
-		spin_lock_irqsave(&info->irq_spinlock,flags);
-		if (!info->tx_active)
-		 	usc_start_transmitter(info);
-		spin_unlock_irqrestore(&info->irq_spinlock,flags);
- 	}
-cleanup:	
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk( "%s(%d):mgsl_write(%s) returning=%d\n",
-			__FILE__,__LINE__,info->device_name,ret);
-			
-	return ret;
-	
-}	/* end of mgsl_write() */
-
-/* mgsl_write_room()
- *
- *	Return the count of free bytes in transmit buffer
- * 	
- * Arguments:		tty	pointer to tty info structure
- * Return Value:	None
- */
-static int mgsl_write_room(struct tty_struct *tty)
-{
-	struct mgsl_struct *info = tty->driver_data;
-	int	ret;
-				
-	if (mgsl_paranoia_check(info, tty->name, "mgsl_write_room"))
-		return 0;
-	ret = SERIAL_XMIT_SIZE - info->xmit_cnt - 1;
-	if (ret < 0)
-		ret = 0;
-		
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_write_room(%s)=%d\n",
-			 __FILE__,__LINE__, info->device_name,ret );
-			 
-	if ( info->params.mode == MGSL_MODE_HDLC ||
-		info->params.mode == MGSL_MODE_RAW ) {
-		/* operating in synchronous (frame oriented) mode */
-		if ( info->tx_active )
-			return 0;
-		else
-			return HDLC_MAX_FRAME_SIZE;
-	}
-	
-	return ret;
-	
-}	/* end of mgsl_write_room() */
-
-/* mgsl_chars_in_buffer()
- *
- *	Return the count of bytes in transmit buffer
- * 	
- * Arguments:		tty	pointer to tty info structure
- * Return Value:	None
- */
-static int mgsl_chars_in_buffer(struct tty_struct *tty)
-{
-	struct mgsl_struct *info = tty->driver_data;
-			 
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_chars_in_buffer(%s)\n",
-			 __FILE__,__LINE__, info->device_name );
-			 
-	if (mgsl_paranoia_check(info, tty->name, "mgsl_chars_in_buffer"))
-		return 0;
-		
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_chars_in_buffer(%s)=%d\n",
-			 __FILE__,__LINE__, info->device_name,info->xmit_cnt );
-			 
-	if ( info->params.mode == MGSL_MODE_HDLC ||
-		info->params.mode == MGSL_MODE_RAW ) {
-		/* operating in synchronous (frame oriented) mode */
-		if ( info->tx_active )
-			return info->max_frame_size;
-		else
-			return 0;
-	}
-			 
-	return info->xmit_cnt;
-}	/* end of mgsl_chars_in_buffer() */
-
-/* mgsl_flush_buffer()
- *
- *	Discard all data in the send buffer
- * 	
- * Arguments:		tty	pointer to tty info structure
- * Return Value:	None
- */
-static void mgsl_flush_buffer(struct tty_struct *tty)
-{
-	struct mgsl_struct *info = tty->driver_data;
-	unsigned long flags;
-	
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_flush_buffer(%s) entry\n",
-			 __FILE__,__LINE__, info->device_name );
-	
-	if (mgsl_paranoia_check(info, tty->name, "mgsl_flush_buffer"))
-		return;
-		
-	spin_lock_irqsave(&info->irq_spinlock,flags); 
-	info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
-	del_timer(&info->tx_timer);	
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-	
-	tty_wakeup(tty);
-}
-
-/* mgsl_send_xchar()
- *
- *	Send a high-priority XON/XOFF character
- * 	
- * Arguments:		tty	pointer to tty info structure
- *			ch	character to send
- * Return Value:	None
- */
-static void mgsl_send_xchar(struct tty_struct *tty, char ch)
-{
-	struct mgsl_struct *info = tty->driver_data;
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_send_xchar(%s,%d)\n",
-			 __FILE__,__LINE__, info->device_name, ch );
-			 
-	if (mgsl_paranoia_check(info, tty->name, "mgsl_send_xchar"))
-		return;
-
-	info->x_char = ch;
-	if (ch) {
-		/* Make sure transmit interrupts are on */
-		spin_lock_irqsave(&info->irq_spinlock,flags);
-		if (!info->tx_enabled)
-		 	usc_start_transmitter(info);
-		spin_unlock_irqrestore(&info->irq_spinlock,flags);
-	}
-}	/* end of mgsl_send_xchar() */
-
-/* mgsl_throttle()
- * 
- * 	Signal remote device to throttle send data (our receive data)
- * 	
- * Arguments:		tty	pointer to tty info structure
- * Return Value:	None
- */
-static void mgsl_throttle(struct tty_struct * tty)
-{
-	struct mgsl_struct *info = tty->driver_data;
-	unsigned long flags;
-	
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_throttle(%s) entry\n",
-			 __FILE__,__LINE__, info->device_name );
-
-	if (mgsl_paranoia_check(info, tty->name, "mgsl_throttle"))
-		return;
-	
-	if (I_IXOFF(tty))
-		mgsl_send_xchar(tty, STOP_CHAR(tty));
- 
- 	if (tty->termios->c_cflag & CRTSCTS) {
-		spin_lock_irqsave(&info->irq_spinlock,flags);
-		info->serial_signals &= ~SerialSignal_RTS;
-	 	usc_set_serial_signals(info);
-		spin_unlock_irqrestore(&info->irq_spinlock,flags);
-	}
-}	/* end of mgsl_throttle() */
-
-/* mgsl_unthrottle()
- * 
- * 	Signal remote device to stop throttling send data (our receive data)
- * 	
- * Arguments:		tty	pointer to tty info structure
- * Return Value:	None
- */
-static void mgsl_unthrottle(struct tty_struct * tty)
-{
-	struct mgsl_struct *info = tty->driver_data;
-	unsigned long flags;
-	
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_unthrottle(%s) entry\n",
-			 __FILE__,__LINE__, info->device_name );
-
-	if (mgsl_paranoia_check(info, tty->name, "mgsl_unthrottle"))
-		return;
-	
-	if (I_IXOFF(tty)) {
-		if (info->x_char)
-			info->x_char = 0;
-		else
-			mgsl_send_xchar(tty, START_CHAR(tty));
-	}
-	
- 	if (tty->termios->c_cflag & CRTSCTS) {
-		spin_lock_irqsave(&info->irq_spinlock,flags);
-		info->serial_signals |= SerialSignal_RTS;
-	 	usc_set_serial_signals(info);
-		spin_unlock_irqrestore(&info->irq_spinlock,flags);
-	}
-	
-}	/* end of mgsl_unthrottle() */
-
-/* mgsl_get_stats()
- * 
- * 	get the current serial parameters information
- *
- * Arguments:	info		pointer to device instance data
- * 		user_icount	pointer to buffer to hold returned stats
- * 	
- * Return Value:	0 if success, otherwise error code
- */
-static int mgsl_get_stats(struct mgsl_struct * info, struct mgsl_icount __user *user_icount)
-{
-	int err;
-	
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_get_params(%s)\n",
-			 __FILE__,__LINE__, info->device_name);
-			
-	if (!user_icount) {
-		memset(&info->icount, 0, sizeof(info->icount));
-	} else {
-		mutex_lock(&info->port.mutex);
-		COPY_TO_USER(err, user_icount, &info->icount, sizeof(struct mgsl_icount));
-		mutex_unlock(&info->port.mutex);
-		if (err)
-			return -EFAULT;
-	}
-	
-	return 0;
-	
-}	/* end of mgsl_get_stats() */
-
-/* mgsl_get_params()
- * 
- * 	get the current serial parameters information
- *
- * Arguments:	info		pointer to device instance data
- * 		user_params	pointer to buffer to hold returned params
- * 	
- * Return Value:	0 if success, otherwise error code
- */
-static int mgsl_get_params(struct mgsl_struct * info, MGSL_PARAMS __user *user_params)
-{
-	int err;
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_get_params(%s)\n",
-			 __FILE__,__LINE__, info->device_name);
-			
-	mutex_lock(&info->port.mutex);
-	COPY_TO_USER(err,user_params, &info->params, sizeof(MGSL_PARAMS));
-	mutex_unlock(&info->port.mutex);
-	if (err) {
-		if ( debug_level >= DEBUG_LEVEL_INFO )
-			printk( "%s(%d):mgsl_get_params(%s) user buffer copy failed\n",
-				__FILE__,__LINE__,info->device_name);
-		return -EFAULT;
-	}
-	
-	return 0;
-	
-}	/* end of mgsl_get_params() */
-
-/* mgsl_set_params()
- * 
- * 	set the serial parameters
- * 	
- * Arguments:
- * 
- * 	info		pointer to device instance data
- * 	new_params	user buffer containing new serial params
- *
- * Return Value:	0 if success, otherwise error code
- */
-static int mgsl_set_params(struct mgsl_struct * info, MGSL_PARAMS __user *new_params)
-{
- 	unsigned long flags;
-	MGSL_PARAMS tmp_params;
-	int err;
- 
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_set_params %s\n", __FILE__,__LINE__,
-			info->device_name );
-	COPY_FROM_USER(err,&tmp_params, new_params, sizeof(MGSL_PARAMS));
-	if (err) {
-		if ( debug_level >= DEBUG_LEVEL_INFO )
-			printk( "%s(%d):mgsl_set_params(%s) user buffer copy failed\n",
-				__FILE__,__LINE__,info->device_name);
-		return -EFAULT;
-	}
-	
-	mutex_lock(&info->port.mutex);
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-	memcpy(&info->params,&tmp_params,sizeof(MGSL_PARAMS));
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-	
- 	mgsl_change_params(info);
-	mutex_unlock(&info->port.mutex);
-	
-	return 0;
-	
-}	/* end of mgsl_set_params() */
-
-/* mgsl_get_txidle()
- * 
- * 	get the current transmit idle mode
- *
- * Arguments:	info		pointer to device instance data
- * 		idle_mode	pointer to buffer to hold returned idle mode
- * 	
- * Return Value:	0 if success, otherwise error code
- */
-static int mgsl_get_txidle(struct mgsl_struct * info, int __user *idle_mode)
-{
-	int err;
-	
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_get_txidle(%s)=%d\n",
-			 __FILE__,__LINE__, info->device_name, info->idle_mode);
-			
-	COPY_TO_USER(err,idle_mode, &info->idle_mode, sizeof(int));
-	if (err) {
-		if ( debug_level >= DEBUG_LEVEL_INFO )
-			printk( "%s(%d):mgsl_get_txidle(%s) user buffer copy failed\n",
-				__FILE__,__LINE__,info->device_name);
-		return -EFAULT;
-	}
-	
-	return 0;
-	
-}	/* end of mgsl_get_txidle() */
-
-/* mgsl_set_txidle()	service ioctl to set transmit idle mode
- * 	
- * Arguments:	 	info		pointer to device instance data
- * 			idle_mode	new idle mode
- *
- * Return Value:	0 if success, otherwise error code
- */
-static int mgsl_set_txidle(struct mgsl_struct * info, int idle_mode)
-{
- 	unsigned long flags;
- 
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_set_txidle(%s,%d)\n", __FILE__,__LINE__,
-			info->device_name, idle_mode );
-			
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-	info->idle_mode = idle_mode;
-	usc_set_txidle( info );
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-	return 0;
-	
-}	/* end of mgsl_set_txidle() */
-
-/* mgsl_txenable()
- * 
- * 	enable or disable the transmitter
- * 	
- * Arguments:
- * 
- * 	info		pointer to device instance data
- * 	enable		1 = enable, 0 = disable
- *
- * Return Value:	0 if success, otherwise error code
- */
-static int mgsl_txenable(struct mgsl_struct * info, int enable)
-{
- 	unsigned long flags;
- 
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_txenable(%s,%d)\n", __FILE__,__LINE__,
-			info->device_name, enable);
-			
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-	if ( enable ) {
-		if ( !info->tx_enabled ) {
-
-			usc_start_transmitter(info);
-			/*--------------------------------------------------
-			 * if HDLC/SDLC Loop mode, attempt to insert the
-			 * station in the 'loop' by setting CMR:13. Upon
-			 * receipt of the next GoAhead (RxAbort) sequence,
-			 * the OnLoop indicator (CCSR:7) should go active
-			 * to indicate that we are on the loop
-			 *--------------------------------------------------*/
-			if ( info->params.flags & HDLC_FLAG_HDLC_LOOPMODE )
-				usc_loopmode_insert_request( info );
-		}
-	} else {
-		if ( info->tx_enabled )
-			usc_stop_transmitter(info);
-	}
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-	return 0;
-	
-}	/* end of mgsl_txenable() */
-
-/* mgsl_txabort()	abort send HDLC frame
- * 	
- * Arguments:	 	info		pointer to device instance data
- * Return Value:	0 if success, otherwise error code
- */
-static int mgsl_txabort(struct mgsl_struct * info)
-{
- 	unsigned long flags;
- 
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_txabort(%s)\n", __FILE__,__LINE__,
-			info->device_name);
-			
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-	if ( info->tx_active && info->params.mode == MGSL_MODE_HDLC )
-	{
-		if ( info->params.flags & HDLC_FLAG_HDLC_LOOPMODE )
-			usc_loopmode_cancel_transmit( info );
-		else
-			usc_TCmd(info,TCmd_SendAbort);
-	}
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-	return 0;
-	
-}	/* end of mgsl_txabort() */
-
-/* mgsl_rxenable() 	enable or disable the receiver
- * 	
- * Arguments:	 	info		pointer to device instance data
- * 			enable		1 = enable, 0 = disable
- * Return Value:	0 if success, otherwise error code
- */
-static int mgsl_rxenable(struct mgsl_struct * info, int enable)
-{
- 	unsigned long flags;
- 
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_rxenable(%s,%d)\n", __FILE__,__LINE__,
-			info->device_name, enable);
-			
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-	if ( enable ) {
-		if ( !info->rx_enabled )
-			usc_start_receiver(info);
-	} else {
-		if ( info->rx_enabled )
-			usc_stop_receiver(info);
-	}
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-	return 0;
-	
-}	/* end of mgsl_rxenable() */
-
-/* mgsl_wait_event() 	wait for specified event to occur
- * 	
- * Arguments:	 	info	pointer to device instance data
- * 			mask	pointer to bitmask of events to wait for
- * Return Value:	0 	if successful and bit mask updated with
- *				of events triggerred,
- * 			otherwise error code
- */
-static int mgsl_wait_event(struct mgsl_struct * info, int __user * mask_ptr)
-{
- 	unsigned long flags;
-	int s;
-	int rc=0;
-	struct mgsl_icount cprev, cnow;
-	int events;
-	int mask;
-	struct	_input_signal_events oldsigs, newsigs;
-	DECLARE_WAITQUEUE(wait, current);
-
-	COPY_FROM_USER(rc,&mask, mask_ptr, sizeof(int));
-	if (rc) {
-		return  -EFAULT;
-	}
-		 
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_wait_event(%s,%d)\n", __FILE__,__LINE__,
-			info->device_name, mask);
-
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-
-	/* return immediately if state matches requested events */
-	usc_get_serial_signals(info);
-	s = info->serial_signals;
-	events = mask &
-		( ((s & SerialSignal_DSR) ? MgslEvent_DsrActive:MgslEvent_DsrInactive) +
- 		  ((s & SerialSignal_DCD) ? MgslEvent_DcdActive:MgslEvent_DcdInactive) +
-		  ((s & SerialSignal_CTS) ? MgslEvent_CtsActive:MgslEvent_CtsInactive) +
-		  ((s & SerialSignal_RI)  ? MgslEvent_RiActive :MgslEvent_RiInactive) );
-	if (events) {
-		spin_unlock_irqrestore(&info->irq_spinlock,flags);
-		goto exit;
-	}
-
-	/* save current irq counts */
-	cprev = info->icount;
-	oldsigs = info->input_signal_events;
-	
-	/* enable hunt and idle irqs if needed */
-	if (mask & (MgslEvent_ExitHuntMode + MgslEvent_IdleReceived)) {
-		u16 oldreg = usc_InReg(info,RICR);
-		u16 newreg = oldreg +
-			 (mask & MgslEvent_ExitHuntMode ? RXSTATUS_EXITED_HUNT:0) +
-			 (mask & MgslEvent_IdleReceived ? RXSTATUS_IDLE_RECEIVED:0);
-		if (oldreg != newreg)
-			usc_OutReg(info, RICR, newreg);
-	}
-	
-	set_current_state(TASK_INTERRUPTIBLE);
-	add_wait_queue(&info->event_wait_q, &wait);
-	
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-	
-
-	for(;;) {
-		schedule();
-		if (signal_pending(current)) {
-			rc = -ERESTARTSYS;
-			break;
-		}
-			
-		/* get current irq counts */
-		spin_lock_irqsave(&info->irq_spinlock,flags);
-		cnow = info->icount;
-		newsigs = info->input_signal_events;
-		set_current_state(TASK_INTERRUPTIBLE);
-		spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-		/* if no change, wait aborted for some reason */
-		if (newsigs.dsr_up   == oldsigs.dsr_up   &&
-		    newsigs.dsr_down == oldsigs.dsr_down &&
-		    newsigs.dcd_up   == oldsigs.dcd_up   &&
-		    newsigs.dcd_down == oldsigs.dcd_down &&
-		    newsigs.cts_up   == oldsigs.cts_up   &&
-		    newsigs.cts_down == oldsigs.cts_down &&
-		    newsigs.ri_up    == oldsigs.ri_up    &&
-		    newsigs.ri_down  == oldsigs.ri_down  &&
-		    cnow.exithunt    == cprev.exithunt   &&
-		    cnow.rxidle      == cprev.rxidle) {
-			rc = -EIO;
-			break;
-		}
-
-		events = mask &
-			( (newsigs.dsr_up   != oldsigs.dsr_up   ? MgslEvent_DsrActive:0)   +
-			(newsigs.dsr_down != oldsigs.dsr_down ? MgslEvent_DsrInactive:0) +
-			(newsigs.dcd_up   != oldsigs.dcd_up   ? MgslEvent_DcdActive:0)   +
-			(newsigs.dcd_down != oldsigs.dcd_down ? MgslEvent_DcdInactive:0) +
-			(newsigs.cts_up   != oldsigs.cts_up   ? MgslEvent_CtsActive:0)   +
-			(newsigs.cts_down != oldsigs.cts_down ? MgslEvent_CtsInactive:0) +
-			(newsigs.ri_up    != oldsigs.ri_up    ? MgslEvent_RiActive:0)    +
-			(newsigs.ri_down  != oldsigs.ri_down  ? MgslEvent_RiInactive:0)  +
-			(cnow.exithunt    != cprev.exithunt   ? MgslEvent_ExitHuntMode:0) +
-			  (cnow.rxidle      != cprev.rxidle     ? MgslEvent_IdleReceived:0) );
-		if (events)
-			break;
-		
-		cprev = cnow;
-		oldsigs = newsigs;
-	}
-	
-	remove_wait_queue(&info->event_wait_q, &wait);
-	set_current_state(TASK_RUNNING);
-
-	if (mask & (MgslEvent_ExitHuntMode + MgslEvent_IdleReceived)) {
-		spin_lock_irqsave(&info->irq_spinlock,flags);
-		if (!waitqueue_active(&info->event_wait_q)) {
-			/* disable enable exit hunt mode/idle rcvd IRQs */
-			usc_OutReg(info, RICR, usc_InReg(info,RICR) &
-				~(RXSTATUS_EXITED_HUNT + RXSTATUS_IDLE_RECEIVED));
-		}
-		spin_unlock_irqrestore(&info->irq_spinlock,flags);
-	}
-exit:
-	if ( rc == 0 )
-		PUT_USER(rc, events, mask_ptr);
-		
-	return rc;
-	
-}	/* end of mgsl_wait_event() */
-
-static int modem_input_wait(struct mgsl_struct *info,int arg)
-{
- 	unsigned long flags;
-	int rc;
-	struct mgsl_icount cprev, cnow;
-	DECLARE_WAITQUEUE(wait, current);
-
-	/* save current irq counts */
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-	cprev = info->icount;
-	add_wait_queue(&info->status_event_wait_q, &wait);
-	set_current_state(TASK_INTERRUPTIBLE);
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-	for(;;) {
-		schedule();
-		if (signal_pending(current)) {
-			rc = -ERESTARTSYS;
-			break;
-		}
-
-		/* get new irq counts */
-		spin_lock_irqsave(&info->irq_spinlock,flags);
-		cnow = info->icount;
-		set_current_state(TASK_INTERRUPTIBLE);
-		spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-		/* if no change, wait aborted for some reason */
-		if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
-		    cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) {
-			rc = -EIO;
-			break;
-		}
-
-		/* check for change in caller specified modem input */
-		if ((arg & TIOCM_RNG && cnow.rng != cprev.rng) ||
-		    (arg & TIOCM_DSR && cnow.dsr != cprev.dsr) ||
-		    (arg & TIOCM_CD  && cnow.dcd != cprev.dcd) ||
-		    (arg & TIOCM_CTS && cnow.cts != cprev.cts)) {
-			rc = 0;
-			break;
-		}
-
-		cprev = cnow;
-	}
-	remove_wait_queue(&info->status_event_wait_q, &wait);
-	set_current_state(TASK_RUNNING);
-	return rc;
-}
-
-/* return the state of the serial control and status signals
- */
-static int tiocmget(struct tty_struct *tty)
-{
-	struct mgsl_struct *info = tty->driver_data;
-	unsigned int result;
- 	unsigned long flags;
-
-	spin_lock_irqsave(&info->irq_spinlock,flags);
- 	usc_get_serial_signals(info);
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-	result = ((info->serial_signals & SerialSignal_RTS) ? TIOCM_RTS:0) +
-		((info->serial_signals & SerialSignal_DTR) ? TIOCM_DTR:0) +
-		((info->serial_signals & SerialSignal_DCD) ? TIOCM_CAR:0) +
-		((info->serial_signals & SerialSignal_RI)  ? TIOCM_RNG:0) +
-		((info->serial_signals & SerialSignal_DSR) ? TIOCM_DSR:0) +
-		((info->serial_signals & SerialSignal_CTS) ? TIOCM_CTS:0);
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s tiocmget() value=%08X\n",
-			 __FILE__,__LINE__, info->device_name, result );
-	return result;
-}
-
-/* set modem control signals (DTR/RTS)
- */
-static int tiocmset(struct tty_struct *tty,
-				    unsigned int set, unsigned int clear)
-{
-	struct mgsl_struct *info = tty->driver_data;
- 	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s tiocmset(%x,%x)\n",
-			__FILE__,__LINE__,info->device_name, set, clear);
-
-	if (set & TIOCM_RTS)
-		info->serial_signals |= SerialSignal_RTS;
-	if (set & TIOCM_DTR)
-		info->serial_signals |= SerialSignal_DTR;
-	if (clear & TIOCM_RTS)
-		info->serial_signals &= ~SerialSignal_RTS;
-	if (clear & TIOCM_DTR)
-		info->serial_signals &= ~SerialSignal_DTR;
-
-	spin_lock_irqsave(&info->irq_spinlock,flags);
- 	usc_set_serial_signals(info);
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-	return 0;
-}
-
-/* mgsl_break()		Set or clear transmit break condition
- *
- * Arguments:		tty		pointer to tty instance data
- *			break_state	-1=set break condition, 0=clear
- * Return Value:	error code
- */
-static int mgsl_break(struct tty_struct *tty, int break_state)
-{
-	struct mgsl_struct * info = tty->driver_data;
-	unsigned long flags;
-	
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_break(%s,%d)\n",
-			 __FILE__,__LINE__, info->device_name, break_state);
-			 
-	if (mgsl_paranoia_check(info, tty->name, "mgsl_break"))
-		return -EINVAL;
-
-	spin_lock_irqsave(&info->irq_spinlock,flags);
- 	if (break_state == -1)
-		usc_OutReg(info,IOCR,(u16)(usc_InReg(info,IOCR) | BIT7));
-	else 
-		usc_OutReg(info,IOCR,(u16)(usc_InReg(info,IOCR) & ~BIT7));
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-	return 0;
-	
-}	/* end of mgsl_break() */
-
-/*
- * Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
- * Return: write counters to the user passed counter struct
- * NB: both 1->0 and 0->1 transitions are counted except for
- *     RI where only 0->1 is counted.
- */
-static int msgl_get_icount(struct tty_struct *tty,
-				struct serial_icounter_struct *icount)
-
-{
-	struct mgsl_struct * info = tty->driver_data;
-	struct mgsl_icount cnow;	/* kernel counter temps */
-	unsigned long flags;
-
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-	cnow = info->icount;
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-	icount->cts = cnow.cts;
-	icount->dsr = cnow.dsr;
-	icount->rng = cnow.rng;
-	icount->dcd = cnow.dcd;
-	icount->rx = cnow.rx;
-	icount->tx = cnow.tx;
-	icount->frame = cnow.frame;
-	icount->overrun = cnow.overrun;
-	icount->parity = cnow.parity;
-	icount->brk = cnow.brk;
-	icount->buf_overrun = cnow.buf_overrun;
-	return 0;
-}
-
-/* mgsl_ioctl()	Service an IOCTL request
- * 	
- * Arguments:
- * 
- * 	tty	pointer to tty instance data
- * 	cmd	IOCTL command code
- * 	arg	command argument/context
- * 	
- * Return Value:	0 if success, otherwise error code
- */
-static int mgsl_ioctl(struct tty_struct *tty,
-		    unsigned int cmd, unsigned long arg)
-{
-	struct mgsl_struct * info = tty->driver_data;
-	
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_ioctl %s cmd=%08X\n", __FILE__,__LINE__,
-			info->device_name, cmd );
-	
-	if (mgsl_paranoia_check(info, tty->name, "mgsl_ioctl"))
-		return -ENODEV;
-
-	if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
-	    (cmd != TIOCMIWAIT)) {
-		if (tty->flags & (1 << TTY_IO_ERROR))
-		    return -EIO;
-	}
-
-	return mgsl_ioctl_common(info, cmd, arg);
-}
-
-static int mgsl_ioctl_common(struct mgsl_struct *info, unsigned int cmd, unsigned long arg)
-{
-	void __user *argp = (void __user *)arg;
-	
-	switch (cmd) {
-		case MGSL_IOCGPARAMS:
-			return mgsl_get_params(info, argp);
-		case MGSL_IOCSPARAMS:
-			return mgsl_set_params(info, argp);
-		case MGSL_IOCGTXIDLE:
-			return mgsl_get_txidle(info, argp);
-		case MGSL_IOCSTXIDLE:
-			return mgsl_set_txidle(info,(int)arg);
-		case MGSL_IOCTXENABLE:
-			return mgsl_txenable(info,(int)arg);
-		case MGSL_IOCRXENABLE:
-			return mgsl_rxenable(info,(int)arg);
-		case MGSL_IOCTXABORT:
-			return mgsl_txabort(info);
-		case MGSL_IOCGSTATS:
-			return mgsl_get_stats(info, argp);
-		case MGSL_IOCWAITEVENT:
-			return mgsl_wait_event(info, argp);
-		case MGSL_IOCLOOPTXDONE:
-			return mgsl_loopmode_send_done(info);
-		/* Wait for modem input (DCD,RI,DSR,CTS) change
-		 * as specified by mask in arg (TIOCM_RNG/DSR/CD/CTS)
-		 */
-		case TIOCMIWAIT:
-			return modem_input_wait(info,(int)arg);
-
-		default:
-			return -ENOIOCTLCMD;
-	}
-	return 0;
-}
-
-/* mgsl_set_termios()
- * 
- * 	Set new termios settings
- * 	
- * Arguments:
- * 
- * 	tty		pointer to tty structure
- * 	termios		pointer to buffer to hold returned old termios
- * 	
- * Return Value:		None
- */
-static void mgsl_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
-{
-	struct mgsl_struct *info = tty->driver_data;
-	unsigned long flags;
-	
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_set_termios %s\n", __FILE__,__LINE__,
-			tty->driver->name );
-	
-	mgsl_change_params(info);
-
-	/* Handle transition to B0 status */
-	if (old_termios->c_cflag & CBAUD &&
-	    !(tty->termios->c_cflag & CBAUD)) {
-		info->serial_signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
-		spin_lock_irqsave(&info->irq_spinlock,flags);
-	 	usc_set_serial_signals(info);
-		spin_unlock_irqrestore(&info->irq_spinlock,flags);
-	}
-	
-	/* Handle transition away from B0 status */
-	if (!(old_termios->c_cflag & CBAUD) &&
-	    tty->termios->c_cflag & CBAUD) {
-		info->serial_signals |= SerialSignal_DTR;
- 		if (!(tty->termios->c_cflag & CRTSCTS) || 
- 		    !test_bit(TTY_THROTTLED, &tty->flags)) {
-			info->serial_signals |= SerialSignal_RTS;
- 		}
-		spin_lock_irqsave(&info->irq_spinlock,flags);
-	 	usc_set_serial_signals(info);
-		spin_unlock_irqrestore(&info->irq_spinlock,flags);
-	}
-	
-	/* Handle turning off CRTSCTS */
-	if (old_termios->c_cflag & CRTSCTS &&
-	    !(tty->termios->c_cflag & CRTSCTS)) {
-		tty->hw_stopped = 0;
-		mgsl_start(tty);
-	}
-
-}	/* end of mgsl_set_termios() */
-
-/* mgsl_close()
- * 
- * 	Called when port is closed. Wait for remaining data to be
- * 	sent. Disable port and free resources.
- * 	
- * Arguments:
- * 
- * 	tty	pointer to open tty structure
- * 	filp	pointer to open file object
- * 	
- * Return Value:	None
- */
-static void mgsl_close(struct tty_struct *tty, struct file * filp)
-{
-	struct mgsl_struct * info = tty->driver_data;
-
-	if (mgsl_paranoia_check(info, tty->name, "mgsl_close"))
-		return;
-	
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_close(%s) entry, count=%d\n",
-			 __FILE__,__LINE__, info->device_name, info->port.count);
-
-	if (tty_port_close_start(&info->port, tty, filp) == 0)			 
-		goto cleanup;
-
-	mutex_lock(&info->port.mutex);
- 	if (info->port.flags & ASYNC_INITIALIZED)
- 		mgsl_wait_until_sent(tty, info->timeout);
-	mgsl_flush_buffer(tty);
-	tty_ldisc_flush(tty);
-	shutdown(info);
-	mutex_unlock(&info->port.mutex);
-
-	tty_port_close_end(&info->port, tty);	
-	info->port.tty = NULL;
-cleanup:			
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_close(%s) exit, count=%d\n", __FILE__,__LINE__,
-			tty->driver->name, info->port.count);
-			
-}	/* end of mgsl_close() */
-
-/* mgsl_wait_until_sent()
- *
- *	Wait until the transmitter is empty.
- *
- * Arguments:
- *
- *	tty		pointer to tty info structure
- *	timeout		time to wait for send completion
- *
- * Return Value:	None
- */
-static void mgsl_wait_until_sent(struct tty_struct *tty, int timeout)
-{
-	struct mgsl_struct * info = tty->driver_data;
-	unsigned long orig_jiffies, char_time;
-
-	if (!info )
-		return;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_wait_until_sent(%s) entry\n",
-			 __FILE__,__LINE__, info->device_name );
-      
-	if (mgsl_paranoia_check(info, tty->name, "mgsl_wait_until_sent"))
-		return;
-
-	if (!(info->port.flags & ASYNC_INITIALIZED))
-		goto exit;
-	 
-	orig_jiffies = jiffies;
-      
-	/* Set check interval to 1/5 of estimated time to
-	 * send a character, and make it at least 1. The check
-	 * interval should also be less than the timeout.
-	 * Note: use tight timings here to satisfy the NIST-PCTS.
-	 */ 
-
-	if ( info->params.data_rate ) {
-	       	char_time = info->timeout/(32 * 5);
-		if (!char_time)
-			char_time++;
-	} else
-		char_time = 1;
-		
-	if (timeout)
-		char_time = min_t(unsigned long, char_time, timeout);
-		
-	if ( info->params.mode == MGSL_MODE_HDLC ||
-		info->params.mode == MGSL_MODE_RAW ) {
-		while (info->tx_active) {
-			msleep_interruptible(jiffies_to_msecs(char_time));
-			if (signal_pending(current))
-				break;
-			if (timeout && time_after(jiffies, orig_jiffies + timeout))
-				break;
-		}
-	} else {
-		while (!(usc_InReg(info,TCSR) & TXSTATUS_ALL_SENT) &&
-			info->tx_enabled) {
-			msleep_interruptible(jiffies_to_msecs(char_time));
-			if (signal_pending(current))
-				break;
-			if (timeout && time_after(jiffies, orig_jiffies + timeout))
-				break;
-		}
-	}
-      
-exit:
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_wait_until_sent(%s) exit\n",
-			 __FILE__,__LINE__, info->device_name );
-			 
-}	/* end of mgsl_wait_until_sent() */
-
-/* mgsl_hangup()
- *
- *	Called by tty_hangup() when a hangup is signaled.
- *	This is the same as to closing all open files for the port.
- *
- * Arguments:		tty	pointer to associated tty object
- * Return Value:	None
- */
-static void mgsl_hangup(struct tty_struct *tty)
-{
-	struct mgsl_struct * info = tty->driver_data;
-	
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_hangup(%s)\n",
-			 __FILE__,__LINE__, info->device_name );
-			 
-	if (mgsl_paranoia_check(info, tty->name, "mgsl_hangup"))
-		return;
-
-	mgsl_flush_buffer(tty);
-	shutdown(info);
-	
-	info->port.count = 0;	
-	info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
-	info->port.tty = NULL;
-
-	wake_up_interruptible(&info->port.open_wait);
-	
-}	/* end of mgsl_hangup() */
-
-/*
- * carrier_raised()
- *
- *	Return true if carrier is raised
- */
-
-static int carrier_raised(struct tty_port *port)
-{
-	unsigned long flags;
-	struct mgsl_struct *info = container_of(port, struct mgsl_struct, port);
-	
-	spin_lock_irqsave(&info->irq_spinlock, flags);
- 	usc_get_serial_signals(info);
-	spin_unlock_irqrestore(&info->irq_spinlock, flags);
-	return (info->serial_signals & SerialSignal_DCD) ? 1 : 0;
-}
-
-static void dtr_rts(struct tty_port *port, int on)
-{
-	struct mgsl_struct *info = container_of(port, struct mgsl_struct, port);
-	unsigned long flags;
-
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-	if (on)
-		info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR;
-	else
-		info->serial_signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
- 	usc_set_serial_signals(info);
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-}
-
-
-/* block_til_ready()
- * 
- * 	Block the current process until the specified port
- * 	is ready to be opened.
- * 	
- * Arguments:
- * 
- * 	tty		pointer to tty info structure
- * 	filp		pointer to open file object
- * 	info		pointer to device instance data
- * 	
- * Return Value:	0 if success, otherwise error code
- */
-static int block_til_ready(struct tty_struct *tty, struct file * filp,
-			   struct mgsl_struct *info)
-{
-	DECLARE_WAITQUEUE(wait, current);
-	int		retval;
-	bool		do_clocal = false;
-	bool		extra_count = false;
-	unsigned long	flags;
-	int		dcd;
-	struct tty_port *port = &info->port;
-	
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):block_til_ready on %s\n",
-			 __FILE__,__LINE__, tty->driver->name );
-
-	if (filp->f_flags & O_NONBLOCK || tty->flags & (1 << TTY_IO_ERROR)){
-		/* nonblock mode is set or port is not enabled */
-		port->flags |= ASYNC_NORMAL_ACTIVE;
-		return 0;
-	}
-
-	if (tty->termios->c_cflag & CLOCAL)
-		do_clocal = true;
-
-	/* Wait for carrier detect and the line to become
-	 * free (i.e., not in use by the callout).  While we are in
-	 * this loop, port->count is dropped by one, so that
-	 * mgsl_close() knows when to free things.  We restore it upon
-	 * exit, either normal or abnormal.
-	 */
-	 
-	retval = 0;
-	add_wait_queue(&port->open_wait, &wait);
-	
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):block_til_ready before block on %s count=%d\n",
-			 __FILE__,__LINE__, tty->driver->name, port->count );
-
-	spin_lock_irqsave(&info->irq_spinlock, flags);
-	if (!tty_hung_up_p(filp)) {
-		extra_count = true;
-		port->count--;
-	}
-	spin_unlock_irqrestore(&info->irq_spinlock, flags);
-	port->blocked_open++;
-	
-	while (1) {
-		if (tty->termios->c_cflag & CBAUD)
-			tty_port_raise_dtr_rts(port);
-		
-		set_current_state(TASK_INTERRUPTIBLE);
-		
-		if (tty_hung_up_p(filp) || !(port->flags & ASYNC_INITIALIZED)){
-			retval = (port->flags & ASYNC_HUP_NOTIFY) ?
-					-EAGAIN : -ERESTARTSYS;
-			break;
-		}
-		
-		dcd = tty_port_carrier_raised(&info->port);
-		
- 		if (!(port->flags & ASYNC_CLOSING) && (do_clocal || dcd))
- 			break;
-			
-		if (signal_pending(current)) {
-			retval = -ERESTARTSYS;
-			break;
-		}
-		
-		if (debug_level >= DEBUG_LEVEL_INFO)
-			printk("%s(%d):block_til_ready blocking on %s count=%d\n",
-				 __FILE__,__LINE__, tty->driver->name, port->count );
-				 
-		tty_unlock();
-		schedule();
-		tty_lock();
-	}
-	
-	set_current_state(TASK_RUNNING);
-	remove_wait_queue(&port->open_wait, &wait);
-	
-	/* FIXME: Racy on hangup during close wait */
-	if (extra_count)
-		port->count++;
-	port->blocked_open--;
-	
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):block_til_ready after blocking on %s count=%d\n",
-			 __FILE__,__LINE__, tty->driver->name, port->count );
-			 
-	if (!retval)
-		port->flags |= ASYNC_NORMAL_ACTIVE;
-		
-	return retval;
-	
-}	/* end of block_til_ready() */
-
-/* mgsl_open()
- *
- *	Called when a port is opened.  Init and enable port.
- *	Perform serial-specific initialization for the tty structure.
- *
- * Arguments:		tty	pointer to tty info structure
- *			filp	associated file pointer
- *
- * Return Value:	0 if success, otherwise error code
- */
-static int mgsl_open(struct tty_struct *tty, struct file * filp)
-{
-	struct mgsl_struct	*info;
-	int 			retval, line;
-	unsigned long flags;
-
-	/* verify range of specified line number */	
-	line = tty->index;
-	if ((line < 0) || (line >= mgsl_device_count)) {
-		printk("%s(%d):mgsl_open with invalid line #%d.\n",
-			__FILE__,__LINE__,line);
-		return -ENODEV;
-	}
-
-	/* find the info structure for the specified line */
-	info = mgsl_device_list;
-	while(info && info->line != line)
-		info = info->next_device;
-	if (mgsl_paranoia_check(info, tty->name, "mgsl_open"))
-		return -ENODEV;
-	
-	tty->driver_data = info;
-	info->port.tty = tty;
-		
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_open(%s), old ref count = %d\n",
-			 __FILE__,__LINE__,tty->driver->name, info->port.count);
-
-	/* If port is closing, signal caller to try again */
-	if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){
-		if (info->port.flags & ASYNC_CLOSING)
-			interruptible_sleep_on(&info->port.close_wait);
-		retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ?
-			-EAGAIN : -ERESTARTSYS);
-		goto cleanup;
-	}
-	
-	info->port.tty->low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
-
-	spin_lock_irqsave(&info->netlock, flags);
-	if (info->netcount) {
-		retval = -EBUSY;
-		spin_unlock_irqrestore(&info->netlock, flags);
-		goto cleanup;
-	}
-	info->port.count++;
-	spin_unlock_irqrestore(&info->netlock, flags);
-
-	if (info->port.count == 1) {
-		/* 1st open on this device, init hardware */
-		retval = startup(info);
-		if (retval < 0)
-			goto cleanup;
-	}
-
-	retval = block_til_ready(tty, filp, info);
-	if (retval) {
-		if (debug_level >= DEBUG_LEVEL_INFO)
-			printk("%s(%d):block_til_ready(%s) returned %d\n",
-				 __FILE__,__LINE__, info->device_name, retval);
-		goto cleanup;
-	}
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):mgsl_open(%s) success\n",
-			 __FILE__,__LINE__, info->device_name);
-	retval = 0;
-	
-cleanup:			
-	if (retval) {
-		if (tty->count == 1)
-			info->port.tty = NULL; /* tty layer will release tty struct */
-		if(info->port.count)
-			info->port.count--;
-	}
-	
-	return retval;
-	
-}	/* end of mgsl_open() */
-
-/*
- * /proc fs routines....
- */
-
-static inline void line_info(struct seq_file *m, struct mgsl_struct *info)
-{
-	char	stat_buf[30];
-	unsigned long flags;
-
-	if (info->bus_type == MGSL_BUS_TYPE_PCI) {
-		seq_printf(m, "%s:PCI io:%04X irq:%d mem:%08X lcr:%08X",
-			info->device_name, info->io_base, info->irq_level,
-			info->phys_memory_base, info->phys_lcr_base);
-	} else {
-		seq_printf(m, "%s:(E)ISA io:%04X irq:%d dma:%d",
-			info->device_name, info->io_base, 
-			info->irq_level, info->dma_level);
-	}
-
-	/* output current serial signal states */
-	spin_lock_irqsave(&info->irq_spinlock,flags);
- 	usc_get_serial_signals(info);
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-	
-	stat_buf[0] = 0;
-	stat_buf[1] = 0;
-	if (info->serial_signals & SerialSignal_RTS)
-		strcat(stat_buf, "|RTS");
-	if (info->serial_signals & SerialSignal_CTS)
-		strcat(stat_buf, "|CTS");
-	if (info->serial_signals & SerialSignal_DTR)
-		strcat(stat_buf, "|DTR");
-	if (info->serial_signals & SerialSignal_DSR)
-		strcat(stat_buf, "|DSR");
-	if (info->serial_signals & SerialSignal_DCD)
-		strcat(stat_buf, "|CD");
-	if (info->serial_signals & SerialSignal_RI)
-		strcat(stat_buf, "|RI");
-
-	if (info->params.mode == MGSL_MODE_HDLC ||
-	    info->params.mode == MGSL_MODE_RAW ) {
-		seq_printf(m, " HDLC txok:%d rxok:%d",
-			      info->icount.txok, info->icount.rxok);
-		if (info->icount.txunder)
-			seq_printf(m, " txunder:%d", info->icount.txunder);
-		if (info->icount.txabort)
-			seq_printf(m, " txabort:%d", info->icount.txabort);
-		if (info->icount.rxshort)
-			seq_printf(m, " rxshort:%d", info->icount.rxshort);
-		if (info->icount.rxlong)
-			seq_printf(m, " rxlong:%d", info->icount.rxlong);
-		if (info->icount.rxover)
-			seq_printf(m, " rxover:%d", info->icount.rxover);
-		if (info->icount.rxcrc)
-			seq_printf(m, " rxcrc:%d", info->icount.rxcrc);
-	} else {
-		seq_printf(m, " ASYNC tx:%d rx:%d",
-			      info->icount.tx, info->icount.rx);
-		if (info->icount.frame)
-			seq_printf(m, " fe:%d", info->icount.frame);
-		if (info->icount.parity)
-			seq_printf(m, " pe:%d", info->icount.parity);
-		if (info->icount.brk)
-			seq_printf(m, " brk:%d", info->icount.brk);
-		if (info->icount.overrun)
-			seq_printf(m, " oe:%d", info->icount.overrun);
-	}
-	
-	/* Append serial signal status to end */
-	seq_printf(m, " %s\n", stat_buf+1);
-	
-	seq_printf(m, "txactive=%d bh_req=%d bh_run=%d pending_bh=%x\n",
-	 info->tx_active,info->bh_requested,info->bh_running,
-	 info->pending_bh);
-	 
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-	{	
-	u16 Tcsr = usc_InReg( info, TCSR );
-	u16 Tdmr = usc_InDmaReg( info, TDMR );
-	u16 Ticr = usc_InReg( info, TICR );
-	u16 Rscr = usc_InReg( info, RCSR );
-	u16 Rdmr = usc_InDmaReg( info, RDMR );
-	u16 Ricr = usc_InReg( info, RICR );
-	u16 Icr = usc_InReg( info, ICR );
-	u16 Dccr = usc_InReg( info, DCCR );
-	u16 Tmr = usc_InReg( info, TMR );
-	u16 Tccr = usc_InReg( info, TCCR );
-	u16 Ccar = inw( info->io_base + CCAR );
-	seq_printf(m, "tcsr=%04X tdmr=%04X ticr=%04X rcsr=%04X rdmr=%04X\n"
-                        "ricr=%04X icr =%04X dccr=%04X tmr=%04X tccr=%04X ccar=%04X\n",
-	 		Tcsr,Tdmr,Ticr,Rscr,Rdmr,Ricr,Icr,Dccr,Tmr,Tccr,Ccar );
-	}
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-}
-
-/* Called to print information about devices */
-static int mgsl_proc_show(struct seq_file *m, void *v)
-{
-	struct mgsl_struct *info;
-	
-	seq_printf(m, "synclink driver:%s\n", driver_version);
-	
-	info = mgsl_device_list;
-	while( info ) {
-		line_info(m, info);
-		info = info->next_device;
-	}
-	return 0;
-}
-
-static int mgsl_proc_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, mgsl_proc_show, NULL);
-}
-
-static const struct file_operations mgsl_proc_fops = {
-	.owner		= THIS_MODULE,
-	.open		= mgsl_proc_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-
-/* mgsl_allocate_dma_buffers()
- * 
- * 	Allocate and format DMA buffers (ISA adapter)
- * 	or format shared memory buffers (PCI adapter).
- * 
- * Arguments:		info	pointer to device instance data
- * Return Value:	0 if success, otherwise error
- */
-static int mgsl_allocate_dma_buffers(struct mgsl_struct *info)
-{
-	unsigned short BuffersPerFrame;
-
-	info->last_mem_alloc = 0;
-
-	/* Calculate the number of DMA buffers necessary to hold the */
-	/* largest allowable frame size. Note: If the max frame size is */
-	/* not an even multiple of the DMA buffer size then we need to */
-	/* round the buffer count per frame up one. */
-
-	BuffersPerFrame = (unsigned short)(info->max_frame_size/DMABUFFERSIZE);
-	if ( info->max_frame_size % DMABUFFERSIZE )
-		BuffersPerFrame++;
-
-	if ( info->bus_type == MGSL_BUS_TYPE_PCI ) {
-		/*
-		 * The PCI adapter has 256KBytes of shared memory to use.
-		 * This is 64 PAGE_SIZE buffers.
-		 *
-		 * The first page is used for padding at this time so the
-		 * buffer list does not begin at offset 0 of the PCI
-		 * adapter's shared memory.
-		 *
-		 * The 2nd page is used for the buffer list. A 4K buffer
-		 * list can hold 128 DMA_BUFFER structures at 32 bytes
-		 * each.
-		 *
-		 * This leaves 62 4K pages.
-		 *
-		 * The next N pages are used for transmit frame(s). We
-		 * reserve enough 4K page blocks to hold the required
-		 * number of transmit dma buffers (num_tx_dma_buffers),
-		 * each of MaxFrameSize size.
-		 *
-		 * Of the remaining pages (62-N), determine how many can
-		 * be used to receive full MaxFrameSize inbound frames
-		 */
-		info->tx_buffer_count = info->num_tx_dma_buffers * BuffersPerFrame;
-		info->rx_buffer_count = 62 - info->tx_buffer_count;
-	} else {
-		/* Calculate the number of PAGE_SIZE buffers needed for */
-		/* receive and transmit DMA buffers. */
-
-
-		/* Calculate the number of DMA buffers necessary to */
-		/* hold 7 max size receive frames and one max size transmit frame. */
-		/* The receive buffer count is bumped by one so we avoid an */
-		/* End of List condition if all receive buffers are used when */
-		/* using linked list DMA buffers. */
-
-		info->tx_buffer_count = info->num_tx_dma_buffers * BuffersPerFrame;
-		info->rx_buffer_count = (BuffersPerFrame * MAXRXFRAMES) + 6;
-		
-		/* 
-		 * limit total TxBuffers & RxBuffers to 62 4K total 
-		 * (ala PCI Allocation) 
-		 */
-		
-		if ( (info->tx_buffer_count + info->rx_buffer_count) > 62 )
-			info->rx_buffer_count = 62 - info->tx_buffer_count;
-
-	}
-
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk("%s(%d):Allocating %d TX and %d RX DMA buffers.\n",
-			__FILE__,__LINE__, info->tx_buffer_count,info->rx_buffer_count);
-	
-	if ( mgsl_alloc_buffer_list_memory( info ) < 0 ||
-		  mgsl_alloc_frame_memory(info, info->rx_buffer_list, info->rx_buffer_count) < 0 || 
-		  mgsl_alloc_frame_memory(info, info->tx_buffer_list, info->tx_buffer_count) < 0 || 
-		  mgsl_alloc_intermediate_rxbuffer_memory(info) < 0  ||
-		  mgsl_alloc_intermediate_txbuffer_memory(info) < 0 ) {
-		printk("%s(%d):Can't allocate DMA buffer memory\n",__FILE__,__LINE__);
-		return -ENOMEM;
-	}
-	
-	mgsl_reset_rx_dma_buffers( info );
-  	mgsl_reset_tx_dma_buffers( info );
-
-	return 0;
-
-}	/* end of mgsl_allocate_dma_buffers() */
-
-/*
- * mgsl_alloc_buffer_list_memory()
- * 
- * Allocate a common DMA buffer for use as the
- * receive and transmit buffer lists.
- * 
- * A buffer list is a set of buffer entries where each entry contains
- * a pointer to an actual buffer and a pointer to the next buffer entry
- * (plus some other info about the buffer).
- * 
- * The buffer entries for a list are built to form a circular list so
- * that when the entire list has been traversed you start back at the
- * beginning.
- * 
- * This function allocates memory for just the buffer entries.
- * The links (pointer to next entry) are filled in with the physical
- * address of the next entry so the adapter can navigate the list
- * using bus master DMA. The pointers to the actual buffers are filled
- * out later when the actual buffers are allocated.
- * 
- * Arguments:		info	pointer to device instance data
- * Return Value:	0 if success, otherwise error
- */
-static int mgsl_alloc_buffer_list_memory( struct mgsl_struct *info )
-{
-	unsigned int i;
-
-	if ( info->bus_type == MGSL_BUS_TYPE_PCI ) {
-		/* PCI adapter uses shared memory. */
-		info->buffer_list = info->memory_base + info->last_mem_alloc;
-		info->buffer_list_phys = info->last_mem_alloc;
-		info->last_mem_alloc += BUFFERLISTSIZE;
-	} else {
-		/* ISA adapter uses system memory. */
-		/* The buffer lists are allocated as a common buffer that both */
-		/* the processor and adapter can access. This allows the driver to */
-		/* inspect portions of the buffer while other portions are being */
-		/* updated by the adapter using Bus Master DMA. */
-
-		info->buffer_list = dma_alloc_coherent(NULL, BUFFERLISTSIZE, &info->buffer_list_dma_addr, GFP_KERNEL);
-		if (info->buffer_list == NULL)
-			return -ENOMEM;
-		info->buffer_list_phys = (u32)(info->buffer_list_dma_addr);
-	}
-
-	/* We got the memory for the buffer entry lists. */
-	/* Initialize the memory block to all zeros. */
-	memset( info->buffer_list, 0, BUFFERLISTSIZE );
-
-	/* Save virtual address pointers to the receive and */
-	/* transmit buffer lists. (Receive 1st). These pointers will */
-	/* be used by the processor to access the lists. */
-	info->rx_buffer_list = (DMABUFFERENTRY *)info->buffer_list;
-	info->tx_buffer_list = (DMABUFFERENTRY *)info->buffer_list;
-	info->tx_buffer_list += info->rx_buffer_count;
-
-	/*
-	 * Build the links for the buffer entry lists such that
-	 * two circular lists are built. (Transmit and Receive).
-	 *
-	 * Note: the links are physical addresses
-	 * which are read by the adapter to determine the next
-	 * buffer entry to use.
-	 */
-
-	for ( i = 0; i < info->rx_buffer_count; i++ ) {
-		/* calculate and store physical address of this buffer entry */
-		info->rx_buffer_list[i].phys_entry =
-			info->buffer_list_phys + (i * sizeof(DMABUFFERENTRY));
-
-		/* calculate and store physical address of */
-		/* next entry in cirular list of entries */
-
-		info->rx_buffer_list[i].link = info->buffer_list_phys;
-
-		if ( i < info->rx_buffer_count - 1 )
-			info->rx_buffer_list[i].link += (i + 1) * sizeof(DMABUFFERENTRY);
-	}
-
-	for ( i = 0; i < info->tx_buffer_count; i++ ) {
-		/* calculate and store physical address of this buffer entry */
-		info->tx_buffer_list[i].phys_entry = info->buffer_list_phys +
-			((info->rx_buffer_count + i) * sizeof(DMABUFFERENTRY));
-
-		/* calculate and store physical address of */
-		/* next entry in cirular list of entries */
-
-		info->tx_buffer_list[i].link = info->buffer_list_phys +
-			info->rx_buffer_count * sizeof(DMABUFFERENTRY);
-
-		if ( i < info->tx_buffer_count - 1 )
-			info->tx_buffer_list[i].link += (i + 1) * sizeof(DMABUFFERENTRY);
-	}
-
-	return 0;
-
-}	/* end of mgsl_alloc_buffer_list_memory() */
-
-/* Free DMA buffers allocated for use as the
- * receive and transmit buffer lists.
- * Warning:
- * 
- * 	The data transfer buffers associated with the buffer list
- * 	MUST be freed before freeing the buffer list itself because
- * 	the buffer list contains the information necessary to free
- * 	the individual buffers!
- */
-static void mgsl_free_buffer_list_memory( struct mgsl_struct *info )
-{
-	if (info->buffer_list && info->bus_type != MGSL_BUS_TYPE_PCI)
-		dma_free_coherent(NULL, BUFFERLISTSIZE, info->buffer_list, info->buffer_list_dma_addr);
-		
-	info->buffer_list = NULL;
-	info->rx_buffer_list = NULL;
-	info->tx_buffer_list = NULL;
-
-}	/* end of mgsl_free_buffer_list_memory() */
-
-/*
- * mgsl_alloc_frame_memory()
- * 
- * 	Allocate the frame DMA buffers used by the specified buffer list.
- * 	Each DMA buffer will be one memory page in size. This is necessary
- * 	because memory can fragment enough that it may be impossible
- * 	contiguous pages.
- * 
- * Arguments:
- * 
- *	info		pointer to device instance data
- * 	BufferList	pointer to list of buffer entries
- * 	Buffercount	count of buffer entries in buffer list
- * 
- * Return Value:	0 if success, otherwise -ENOMEM
- */
-static int mgsl_alloc_frame_memory(struct mgsl_struct *info,DMABUFFERENTRY *BufferList,int Buffercount)
-{
-	int i;
-	u32 phys_addr;
-
-	/* Allocate page sized buffers for the receive buffer list */
-
-	for ( i = 0; i < Buffercount; i++ ) {
-		if ( info->bus_type == MGSL_BUS_TYPE_PCI ) {
-			/* PCI adapter uses shared memory buffers. */
-			BufferList[i].virt_addr = info->memory_base + info->last_mem_alloc;
-			phys_addr = info->last_mem_alloc;
-			info->last_mem_alloc += DMABUFFERSIZE;
-		} else {
-			/* ISA adapter uses system memory. */
-			BufferList[i].virt_addr = dma_alloc_coherent(NULL, DMABUFFERSIZE, &BufferList[i].dma_addr, GFP_KERNEL);
-			if (BufferList[i].virt_addr == NULL)
-				return -ENOMEM;
-			phys_addr = (u32)(BufferList[i].dma_addr);
-		}
-		BufferList[i].phys_addr = phys_addr;
-	}
-
-	return 0;
-
-}	/* end of mgsl_alloc_frame_memory() */
-
-/*
- * mgsl_free_frame_memory()
- * 
- * 	Free the buffers associated with
- * 	each buffer entry of a buffer list.
- * 
- * Arguments:
- * 
- *	info		pointer to device instance data
- * 	BufferList	pointer to list of buffer entries
- * 	Buffercount	count of buffer entries in buffer list
- * 
- * Return Value:	None
- */
-static void mgsl_free_frame_memory(struct mgsl_struct *info, DMABUFFERENTRY *BufferList, int Buffercount)
-{
-	int i;
-
-	if ( BufferList ) {
-		for ( i = 0 ; i < Buffercount ; i++ ) {
-			if ( BufferList[i].virt_addr ) {
-				if ( info->bus_type != MGSL_BUS_TYPE_PCI )
-					dma_free_coherent(NULL, DMABUFFERSIZE, BufferList[i].virt_addr, BufferList[i].dma_addr);
-				BufferList[i].virt_addr = NULL;
-			}
-		}
-	}
-
-}	/* end of mgsl_free_frame_memory() */
-
-/* mgsl_free_dma_buffers()
- * 
- * 	Free DMA buffers
- * 	
- * Arguments:		info	pointer to device instance data
- * Return Value:	None
- */
-static void mgsl_free_dma_buffers( struct mgsl_struct *info )
-{
-	mgsl_free_frame_memory( info, info->rx_buffer_list, info->rx_buffer_count );
-	mgsl_free_frame_memory( info, info->tx_buffer_list, info->tx_buffer_count );
-	mgsl_free_buffer_list_memory( info );
-
-}	/* end of mgsl_free_dma_buffers() */
-
-
-/*
- * mgsl_alloc_intermediate_rxbuffer_memory()
- * 
- * 	Allocate a buffer large enough to hold max_frame_size. This buffer
- *	is used to pass an assembled frame to the line discipline.
- * 
- * Arguments:
- * 
- *	info		pointer to device instance data
- * 
- * Return Value:	0 if success, otherwise -ENOMEM
- */
-static int mgsl_alloc_intermediate_rxbuffer_memory(struct mgsl_struct *info)
-{
-	info->intermediate_rxbuffer = kmalloc(info->max_frame_size, GFP_KERNEL | GFP_DMA);
-	if ( info->intermediate_rxbuffer == NULL )
-		return -ENOMEM;
-
-	return 0;
-
-}	/* end of mgsl_alloc_intermediate_rxbuffer_memory() */
-
-/*
- * mgsl_free_intermediate_rxbuffer_memory()
- * 
- * 
- * Arguments:
- * 
- *	info		pointer to device instance data
- * 
- * Return Value:	None
- */
-static void mgsl_free_intermediate_rxbuffer_memory(struct mgsl_struct *info)
-{
-	kfree(info->intermediate_rxbuffer);
-	info->intermediate_rxbuffer = NULL;
-
-}	/* end of mgsl_free_intermediate_rxbuffer_memory() */
-
-/*
- * mgsl_alloc_intermediate_txbuffer_memory()
- *
- * 	Allocate intermdiate transmit buffer(s) large enough to hold max_frame_size.
- * 	This buffer is used to load transmit frames into the adapter's dma transfer
- * 	buffers when there is sufficient space.
- *
- * Arguments:
- *
- *	info		pointer to device instance data
- *
- * Return Value:	0 if success, otherwise -ENOMEM
- */
-static int mgsl_alloc_intermediate_txbuffer_memory(struct mgsl_struct *info)
-{
-	int i;
-
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk("%s %s(%d)  allocating %d tx holding buffers\n",
-				info->device_name, __FILE__,__LINE__,info->num_tx_holding_buffers);
-
-	memset(info->tx_holding_buffers,0,sizeof(info->tx_holding_buffers));
-
-	for ( i=0; i<info->num_tx_holding_buffers; ++i) {
-		info->tx_holding_buffers[i].buffer =
-			kmalloc(info->max_frame_size, GFP_KERNEL);
-		if (info->tx_holding_buffers[i].buffer == NULL) {
-			for (--i; i >= 0; i--) {
-				kfree(info->tx_holding_buffers[i].buffer);
-				info->tx_holding_buffers[i].buffer = NULL;
-			}
-			return -ENOMEM;
-		}
-	}
-
-	return 0;
-
-}	/* end of mgsl_alloc_intermediate_txbuffer_memory() */
-
-/*
- * mgsl_free_intermediate_txbuffer_memory()
- *
- *
- * Arguments:
- *
- *	info		pointer to device instance data
- *
- * Return Value:	None
- */
-static void mgsl_free_intermediate_txbuffer_memory(struct mgsl_struct *info)
-{
-	int i;
-
-	for ( i=0; i<info->num_tx_holding_buffers; ++i ) {
-		kfree(info->tx_holding_buffers[i].buffer);
-		info->tx_holding_buffers[i].buffer = NULL;
-	}
-
-	info->get_tx_holding_index = 0;
-	info->put_tx_holding_index = 0;
-	info->tx_holding_count = 0;
-
-}	/* end of mgsl_free_intermediate_txbuffer_memory() */
-
-
-/*
- * load_next_tx_holding_buffer()
- *
- * attempts to load the next buffered tx request into the
- * tx dma buffers
- *
- * Arguments:
- *
- *	info		pointer to device instance data
- *
- * Return Value:	true if next buffered tx request loaded
- * 			into adapter's tx dma buffer,
- * 			false otherwise
- */
-static bool load_next_tx_holding_buffer(struct mgsl_struct *info)
-{
-	bool ret = false;
-
-	if ( info->tx_holding_count ) {
-		/* determine if we have enough tx dma buffers
-		 * to accommodate the next tx frame
-		 */
-		struct tx_holding_buffer *ptx =
-			&info->tx_holding_buffers[info->get_tx_holding_index];
-		int num_free = num_free_tx_dma_buffers(info);
-		int num_needed = ptx->buffer_size / DMABUFFERSIZE;
-		if ( ptx->buffer_size % DMABUFFERSIZE )
-			++num_needed;
-
-		if (num_needed <= num_free) {
-			info->xmit_cnt = ptx->buffer_size;
-			mgsl_load_tx_dma_buffer(info,ptx->buffer,ptx->buffer_size);
-
-			--info->tx_holding_count;
-			if ( ++info->get_tx_holding_index >= info->num_tx_holding_buffers)
-				info->get_tx_holding_index=0;
-
-			/* restart transmit timer */
-			mod_timer(&info->tx_timer, jiffies + msecs_to_jiffies(5000));
-
-			ret = true;
-		}
-	}
-
-	return ret;
-}
-
-/*
- * save_tx_buffer_request()
- *
- * attempt to store transmit frame request for later transmission
- *
- * Arguments:
- *
- *	info		pointer to device instance data
- * 	Buffer		pointer to buffer containing frame to load
- * 	BufferSize	size in bytes of frame in Buffer
- *
- * Return Value:	1 if able to store, 0 otherwise
- */
-static int save_tx_buffer_request(struct mgsl_struct *info,const char *Buffer, unsigned int BufferSize)
-{
-	struct tx_holding_buffer *ptx;
-
-	if ( info->tx_holding_count >= info->num_tx_holding_buffers ) {
-		return 0;	        /* all buffers in use */
-	}
-
-	ptx = &info->tx_holding_buffers[info->put_tx_holding_index];
-	ptx->buffer_size = BufferSize;
-	memcpy( ptx->buffer, Buffer, BufferSize);
-
-	++info->tx_holding_count;
-	if ( ++info->put_tx_holding_index >= info->num_tx_holding_buffers)
-		info->put_tx_holding_index=0;
-
-	return 1;
-}
-
-static int mgsl_claim_resources(struct mgsl_struct *info)
-{
-	if (request_region(info->io_base,info->io_addr_size,"synclink") == NULL) {
-		printk( "%s(%d):I/O address conflict on device %s Addr=%08X\n",
-			__FILE__,__LINE__,info->device_name, info->io_base);
-		return -ENODEV;
-	}
-	info->io_addr_requested = true;
-	
-	if ( request_irq(info->irq_level,mgsl_interrupt,info->irq_flags,
-		info->device_name, info ) < 0 ) {
-		printk( "%s(%d):Cant request interrupt on device %s IRQ=%d\n",
-			__FILE__,__LINE__,info->device_name, info->irq_level );
-		goto errout;
-	}
-	info->irq_requested = true;
-	
-	if ( info->bus_type == MGSL_BUS_TYPE_PCI ) {
-		if (request_mem_region(info->phys_memory_base,0x40000,"synclink") == NULL) {
-			printk( "%s(%d):mem addr conflict device %s Addr=%08X\n",
-				__FILE__,__LINE__,info->device_name, info->phys_memory_base);
-			goto errout;
-		}
-		info->shared_mem_requested = true;
-		if (request_mem_region(info->phys_lcr_base + info->lcr_offset,128,"synclink") == NULL) {
-			printk( "%s(%d):lcr mem addr conflict device %s Addr=%08X\n",
-				__FILE__,__LINE__,info->device_name, info->phys_lcr_base + info->lcr_offset);
-			goto errout;
-		}
-		info->lcr_mem_requested = true;
-
-		info->memory_base = ioremap_nocache(info->phys_memory_base,
-								0x40000);
-		if (!info->memory_base) {
-			printk( "%s(%d):Cant map shared memory on device %s MemAddr=%08X\n",
-				__FILE__,__LINE__,info->device_name, info->phys_memory_base );
-			goto errout;
-		}
-		
-		if ( !mgsl_memory_test(info) ) {
-			printk( "%s(%d):Failed shared memory test %s MemAddr=%08X\n",
-				__FILE__,__LINE__,info->device_name, info->phys_memory_base );
-			goto errout;
-		}
-		
-		info->lcr_base = ioremap_nocache(info->phys_lcr_base,
-								PAGE_SIZE);
-		if (!info->lcr_base) {
-			printk( "%s(%d):Cant map LCR memory on device %s MemAddr=%08X\n",
-				__FILE__,__LINE__,info->device_name, info->phys_lcr_base );
-			goto errout;
-		}
-		info->lcr_base += info->lcr_offset;
-		
-	} else {
-		/* claim DMA channel */
-		
-		if (request_dma(info->dma_level,info->device_name) < 0){
-			printk( "%s(%d):Cant request DMA channel on device %s DMA=%d\n",
-				__FILE__,__LINE__,info->device_name, info->dma_level );
-			mgsl_release_resources( info );
-			return -ENODEV;
-		}
-		info->dma_requested = true;
-
-		/* ISA adapter uses bus master DMA */		
-		set_dma_mode(info->dma_level,DMA_MODE_CASCADE);
-		enable_dma(info->dma_level);
-	}
-	
-	if ( mgsl_allocate_dma_buffers(info) < 0 ) {
-		printk( "%s(%d):Cant allocate DMA buffers on device %s DMA=%d\n",
-			__FILE__,__LINE__,info->device_name, info->dma_level );
-		goto errout;
-	}	
-	
-	return 0;
-errout:
-	mgsl_release_resources(info);
-	return -ENODEV;
-
-}	/* end of mgsl_claim_resources() */
-
-static void mgsl_release_resources(struct mgsl_struct *info)
-{
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk( "%s(%d):mgsl_release_resources(%s) entry\n",
-			__FILE__,__LINE__,info->device_name );
-			
-	if ( info->irq_requested ) {
-		free_irq(info->irq_level, info);
-		info->irq_requested = false;
-	}
-	if ( info->dma_requested ) {
-		disable_dma(info->dma_level);
-		free_dma(info->dma_level);
-		info->dma_requested = false;
-	}
-	mgsl_free_dma_buffers(info);
-	mgsl_free_intermediate_rxbuffer_memory(info);
-     	mgsl_free_intermediate_txbuffer_memory(info);
-	
-	if ( info->io_addr_requested ) {
-		release_region(info->io_base,info->io_addr_size);
-		info->io_addr_requested = false;
-	}
-	if ( info->shared_mem_requested ) {
-		release_mem_region(info->phys_memory_base,0x40000);
-		info->shared_mem_requested = false;
-	}
-	if ( info->lcr_mem_requested ) {
-		release_mem_region(info->phys_lcr_base + info->lcr_offset,128);
-		info->lcr_mem_requested = false;
-	}
-	if (info->memory_base){
-		iounmap(info->memory_base);
-		info->memory_base = NULL;
-	}
-	if (info->lcr_base){
-		iounmap(info->lcr_base - info->lcr_offset);
-		info->lcr_base = NULL;
-	}
-	
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk( "%s(%d):mgsl_release_resources(%s) exit\n",
-			__FILE__,__LINE__,info->device_name );
-			
-}	/* end of mgsl_release_resources() */
-
-/* mgsl_add_device()
- * 
- * 	Add the specified device instance data structure to the
- * 	global linked list of devices and increment the device count.
- * 	
- * Arguments:		info	pointer to device instance data
- * Return Value:	None
- */
-static void mgsl_add_device( struct mgsl_struct *info )
-{
-	info->next_device = NULL;
-	info->line = mgsl_device_count;
-	sprintf(info->device_name,"ttySL%d",info->line);
-	
-	if (info->line < MAX_TOTAL_DEVICES) {
-		if (maxframe[info->line])
-			info->max_frame_size = maxframe[info->line];
-
-		if (txdmabufs[info->line]) {
-			info->num_tx_dma_buffers = txdmabufs[info->line];
-			if (info->num_tx_dma_buffers < 1)
-				info->num_tx_dma_buffers = 1;
-		}
-
-		if (txholdbufs[info->line]) {
-			info->num_tx_holding_buffers = txholdbufs[info->line];
-			if (info->num_tx_holding_buffers < 1)
-				info->num_tx_holding_buffers = 1;
-			else if (info->num_tx_holding_buffers > MAX_TX_HOLDING_BUFFERS)
-				info->num_tx_holding_buffers = MAX_TX_HOLDING_BUFFERS;
-		}
-	}
-
-	mgsl_device_count++;
-	
-	if ( !mgsl_device_list )
-		mgsl_device_list = info;
-	else {	
-		struct mgsl_struct *current_dev = mgsl_device_list;
-		while( current_dev->next_device )
-			current_dev = current_dev->next_device;
-		current_dev->next_device = info;
-	}
-	
-	if ( info->max_frame_size < 4096 )
-		info->max_frame_size = 4096;
-	else if ( info->max_frame_size > 65535 )
-		info->max_frame_size = 65535;
-	
-	if ( info->bus_type == MGSL_BUS_TYPE_PCI ) {
-		printk( "SyncLink PCI v%d %s: IO=%04X IRQ=%d Mem=%08X,%08X MaxFrameSize=%u\n",
-			info->hw_version + 1, info->device_name, info->io_base, info->irq_level,
-			info->phys_memory_base, info->phys_lcr_base,
-		     	info->max_frame_size );
-	} else {
-		printk( "SyncLink ISA %s: IO=%04X IRQ=%d DMA=%d MaxFrameSize=%u\n",
-			info->device_name, info->io_base, info->irq_level, info->dma_level,
-		     	info->max_frame_size );
-	}
-
-#if SYNCLINK_GENERIC_HDLC
-	hdlcdev_init(info);
-#endif
-
-}	/* end of mgsl_add_device() */
-
-static const struct tty_port_operations mgsl_port_ops = {
-	.carrier_raised = carrier_raised,
-	.dtr_rts = dtr_rts,
-};
-
-
-/* mgsl_allocate_device()
- * 
- * 	Allocate and initialize a device instance structure
- * 	
- * Arguments:		none
- * Return Value:	pointer to mgsl_struct if success, otherwise NULL
- */
-static struct mgsl_struct* mgsl_allocate_device(void)
-{
-	struct mgsl_struct *info;
-	
-	info = kzalloc(sizeof(struct mgsl_struct),
-		 GFP_KERNEL);
-		 
-	if (!info) {
-		printk("Error can't allocate device instance data\n");
-	} else {
-		tty_port_init(&info->port);
-		info->port.ops = &mgsl_port_ops;
-		info->magic = MGSL_MAGIC;
-		INIT_WORK(&info->task, mgsl_bh_handler);
-		info->max_frame_size = 4096;
-		info->port.close_delay = 5*HZ/10;
-		info->port.closing_wait = 30*HZ;
-		init_waitqueue_head(&info->status_event_wait_q);
-		init_waitqueue_head(&info->event_wait_q);
-		spin_lock_init(&info->irq_spinlock);
-		spin_lock_init(&info->netlock);
-		memcpy(&info->params,&default_params,sizeof(MGSL_PARAMS));
-		info->idle_mode = HDLC_TXIDLE_FLAGS;		
-		info->num_tx_dma_buffers = 1;
-		info->num_tx_holding_buffers = 0;
-	}
-	
-	return info;
-
-}	/* end of mgsl_allocate_device()*/
-
-static const struct tty_operations mgsl_ops = {
-	.open = mgsl_open,
-	.close = mgsl_close,
-	.write = mgsl_write,
-	.put_char = mgsl_put_char,
-	.flush_chars = mgsl_flush_chars,
-	.write_room = mgsl_write_room,
-	.chars_in_buffer = mgsl_chars_in_buffer,
-	.flush_buffer = mgsl_flush_buffer,
-	.ioctl = mgsl_ioctl,
-	.throttle = mgsl_throttle,
-	.unthrottle = mgsl_unthrottle,
-	.send_xchar = mgsl_send_xchar,
-	.break_ctl = mgsl_break,
-	.wait_until_sent = mgsl_wait_until_sent,
-	.set_termios = mgsl_set_termios,
-	.stop = mgsl_stop,
-	.start = mgsl_start,
-	.hangup = mgsl_hangup,
-	.tiocmget = tiocmget,
-	.tiocmset = tiocmset,
-	.get_icount = msgl_get_icount,
-	.proc_fops = &mgsl_proc_fops,
-};
-
-/*
- * perform tty device initialization
- */
-static int mgsl_init_tty(void)
-{
-	int rc;
-
-	serial_driver = alloc_tty_driver(128);
-	if (!serial_driver)
-		return -ENOMEM;
-	
-	serial_driver->owner = THIS_MODULE;
-	serial_driver->driver_name = "synclink";
-	serial_driver->name = "ttySL";
-	serial_driver->major = ttymajor;
-	serial_driver->minor_start = 64;
-	serial_driver->type = TTY_DRIVER_TYPE_SERIAL;
-	serial_driver->subtype = SERIAL_TYPE_NORMAL;
-	serial_driver->init_termios = tty_std_termios;
-	serial_driver->init_termios.c_cflag =
-		B9600 | CS8 | CREAD | HUPCL | CLOCAL;
-	serial_driver->init_termios.c_ispeed = 9600;
-	serial_driver->init_termios.c_ospeed = 9600;
-	serial_driver->flags = TTY_DRIVER_REAL_RAW;
-	tty_set_operations(serial_driver, &mgsl_ops);
-	if ((rc = tty_register_driver(serial_driver)) < 0) {
-		printk("%s(%d):Couldn't register serial driver\n",
-			__FILE__,__LINE__);
-		put_tty_driver(serial_driver);
-		serial_driver = NULL;
-		return rc;
-	}
-			
- 	printk("%s %s, tty major#%d\n",
-		driver_name, driver_version,
-		serial_driver->major);
-	return 0;
-}
-
-/* enumerate user specified ISA adapters
- */
-static void mgsl_enum_isa_devices(void)
-{
-	struct mgsl_struct *info;
-	int i;
-		
-	/* Check for user specified ISA devices */
-	
-	for (i=0 ;(i < MAX_ISA_DEVICES) && io[i] && irq[i]; i++){
-		if ( debug_level >= DEBUG_LEVEL_INFO )
-			printk("ISA device specified io=%04X,irq=%d,dma=%d\n",
-				io[i], irq[i], dma[i] );
-		
-		info = mgsl_allocate_device();
-		if ( !info ) {
-			/* error allocating device instance data */
-			if ( debug_level >= DEBUG_LEVEL_ERROR )
-				printk( "can't allocate device instance data.\n");
-			continue;
-		}
-		
-		/* Copy user configuration info to device instance data */
-		info->io_base = (unsigned int)io[i];
-		info->irq_level = (unsigned int)irq[i];
-		info->irq_level = irq_canonicalize(info->irq_level);
-		info->dma_level = (unsigned int)dma[i];
-		info->bus_type = MGSL_BUS_TYPE_ISA;
-		info->io_addr_size = 16;
-		info->irq_flags = 0;
-		
-		mgsl_add_device( info );
-	}
-}
-
-static void synclink_cleanup(void)
-{
-	int rc;
-	struct mgsl_struct *info;
-	struct mgsl_struct *tmp;
-
-	printk("Unloading %s: %s\n", driver_name, driver_version);
-
-	if (serial_driver) {
-		if ((rc = tty_unregister_driver(serial_driver)))
-			printk("%s(%d) failed to unregister tty driver err=%d\n",
-			       __FILE__,__LINE__,rc);
-		put_tty_driver(serial_driver);
-	}
-
-	info = mgsl_device_list;
-	while(info) {
-#if SYNCLINK_GENERIC_HDLC
-		hdlcdev_exit(info);
-#endif
-		mgsl_release_resources(info);
-		tmp = info;
-		info = info->next_device;
-		kfree(tmp);
-	}
-	
-	if (pci_registered)
-		pci_unregister_driver(&synclink_pci_driver);
-}
-
-static int __init synclink_init(void)
-{
-	int rc;
-
-	if (break_on_load) {
-	 	mgsl_get_text_ptr();
-  		BREAKPOINT();
-	}
-
- 	printk("%s %s\n", driver_name, driver_version);
-
-	mgsl_enum_isa_devices();
-	if ((rc = pci_register_driver(&synclink_pci_driver)) < 0)
-		printk("%s:failed to register PCI driver, error=%d\n",__FILE__,rc);
-	else
-		pci_registered = true;
-
-	if ((rc = mgsl_init_tty()) < 0)
-		goto error;
-
-	return 0;
-
-error:
-	synclink_cleanup();
-	return rc;
-}
-
-static void __exit synclink_exit(void)
-{
-	synclink_cleanup();
-}
-
-module_init(synclink_init);
-module_exit(synclink_exit);
-
-/*
- * usc_RTCmd()
- *
- * Issue a USC Receive/Transmit command to the
- * Channel Command/Address Register (CCAR).
- *
- * Notes:
- *
- *    The command is encoded in the most significant 5 bits <15..11>
- *    of the CCAR value. Bits <10..7> of the CCAR must be preserved
- *    and Bits <6..0> must be written as zeros.
- *
- * Arguments:
- *
- *    info   pointer to device information structure
- *    Cmd    command mask (use symbolic macros)
- *
- * Return Value:
- *
- *    None
- */
-static void usc_RTCmd( struct mgsl_struct *info, u16 Cmd )
-{
-	/* output command to CCAR in bits <15..11> */
-	/* preserve bits <10..7>, bits <6..0> must be zero */
-
-	outw( Cmd + info->loopback_bits, info->io_base + CCAR );
-
-	/* Read to flush write to CCAR */
-	if ( info->bus_type == MGSL_BUS_TYPE_PCI )
-		inw( info->io_base + CCAR );
-
-}	/* end of usc_RTCmd() */
-
-/*
- * usc_DmaCmd()
- *
- *    Issue a DMA command to the DMA Command/Address Register (DCAR).
- *
- * Arguments:
- *
- *    info   pointer to device information structure
- *    Cmd    DMA command mask (usc_DmaCmd_XX Macros)
- *
- * Return Value:
- *
- *       None
- */
-static void usc_DmaCmd( struct mgsl_struct *info, u16 Cmd )
-{
-	/* write command mask to DCAR */
-	outw( Cmd + info->mbre_bit, info->io_base );
-
-	/* Read to flush write to DCAR */
-	if ( info->bus_type == MGSL_BUS_TYPE_PCI )
-		inw( info->io_base );
-
-}	/* end of usc_DmaCmd() */
-
-/*
- * usc_OutDmaReg()
- *
- *    Write a 16-bit value to a USC DMA register
- *
- * Arguments:
- *
- *    info      pointer to device info structure
- *    RegAddr   register address (number) for write
- *    RegValue  16-bit value to write to register
- *
- * Return Value:
- *
- *    None
- *
- */
-static void usc_OutDmaReg( struct mgsl_struct *info, u16 RegAddr, u16 RegValue )
-{
-	/* Note: The DCAR is located at the adapter base address */
-	/* Note: must preserve state of BIT8 in DCAR */
-
-	outw( RegAddr + info->mbre_bit, info->io_base );
-	outw( RegValue, info->io_base );
-
-	/* Read to flush write to DCAR */
-	if ( info->bus_type == MGSL_BUS_TYPE_PCI )
-		inw( info->io_base );
-
-}	/* end of usc_OutDmaReg() */
- 
-/*
- * usc_InDmaReg()
- *
- *    Read a 16-bit value from a DMA register
- *
- * Arguments:
- *
- *    info     pointer to device info structure
- *    RegAddr  register address (number) to read from
- *
- * Return Value:
- *
- *    The 16-bit value read from register
- *
- */
-static u16 usc_InDmaReg( struct mgsl_struct *info, u16 RegAddr )
-{
-	/* Note: The DCAR is located at the adapter base address */
-	/* Note: must preserve state of BIT8 in DCAR */
-
-	outw( RegAddr + info->mbre_bit, info->io_base );
-	return inw( info->io_base );
-
-}	/* end of usc_InDmaReg() */
-
-/*
- *
- * usc_OutReg()
- *
- *    Write a 16-bit value to a USC serial channel register 
- *
- * Arguments:
- *
- *    info      pointer to device info structure
- *    RegAddr   register address (number) to write to
- *    RegValue  16-bit value to write to register
- *
- * Return Value:
- *
- *    None
- *
- */
-static void usc_OutReg( struct mgsl_struct *info, u16 RegAddr, u16 RegValue )
-{
-	outw( RegAddr + info->loopback_bits, info->io_base + CCAR );
-	outw( RegValue, info->io_base + CCAR );
-
-	/* Read to flush write to CCAR */
-	if ( info->bus_type == MGSL_BUS_TYPE_PCI )
-		inw( info->io_base + CCAR );
-
-}	/* end of usc_OutReg() */
-
-/*
- * usc_InReg()
- *
- *    Reads a 16-bit value from a USC serial channel register
- *
- * Arguments:
- *
- *    info       pointer to device extension
- *    RegAddr    register address (number) to read from
- *
- * Return Value:
- *
- *    16-bit value read from register
- */
-static u16 usc_InReg( struct mgsl_struct *info, u16 RegAddr )
-{
-	outw( RegAddr + info->loopback_bits, info->io_base + CCAR );
-	return inw( info->io_base + CCAR );
-
-}	/* end of usc_InReg() */
-
-/* usc_set_sdlc_mode()
- *
- *    Set up the adapter for SDLC DMA communications.
- *
- * Arguments:		info    pointer to device instance data
- * Return Value: 	NONE
- */
-static void usc_set_sdlc_mode( struct mgsl_struct *info )
-{
-	u16 RegValue;
-	bool PreSL1660;
-	
-	/*
-	 * determine if the IUSC on the adapter is pre-SL1660. If
-	 * not, take advantage of the UnderWait feature of more
-	 * modern chips. If an underrun occurs and this bit is set,
-	 * the transmitter will idle the programmed idle pattern
-	 * until the driver has time to service the underrun. Otherwise,
-	 * the dma controller may get the cycles previously requested
-	 * and begin transmitting queued tx data.
-	 */
-	usc_OutReg(info,TMCR,0x1f);
-	RegValue=usc_InReg(info,TMDR);
-	PreSL1660 = (RegValue == IUSC_PRE_SL1660);
-
- 	if ( info->params.flags & HDLC_FLAG_HDLC_LOOPMODE )
- 	{
- 	   /*
- 	   ** Channel Mode Register (CMR)
- 	   **
- 	   ** <15..14>    10    Tx Sub Modes, Send Flag on Underrun
- 	   ** <13>        0     0 = Transmit Disabled (initially)
- 	   ** <12>        0     1 = Consecutive Idles share common 0
- 	   ** <11..8>     1110  Transmitter Mode = HDLC/SDLC Loop
- 	   ** <7..4>      0000  Rx Sub Modes, addr/ctrl field handling
- 	   ** <3..0>      0110  Receiver Mode = HDLC/SDLC
- 	   **
- 	   ** 1000 1110 0000 0110 = 0x8e06
- 	   */
- 	   RegValue = 0x8e06;
- 
- 	   /*--------------------------------------------------
- 	    * ignore user options for UnderRun Actions and
- 	    * preambles
- 	    *--------------------------------------------------*/
- 	}
- 	else
- 	{	
-		/* Channel mode Register (CMR)
-		 *
-		 * <15..14>  00    Tx Sub modes, Underrun Action
-		 * <13>      0     1 = Send Preamble before opening flag
-		 * <12>      0     1 = Consecutive Idles share common 0
-		 * <11..8>   0110  Transmitter mode = HDLC/SDLC
-		 * <7..4>    0000  Rx Sub modes, addr/ctrl field handling
-		 * <3..0>    0110  Receiver mode = HDLC/SDLC
-		 *
-		 * 0000 0110 0000 0110 = 0x0606
-		 */
-		if (info->params.mode == MGSL_MODE_RAW) {
-			RegValue = 0x0001;		/* Set Receive mode = external sync */
-
-			usc_OutReg( info, IOCR,		/* Set IOCR DCD is RxSync Detect Input */
-				(unsigned short)((usc_InReg(info, IOCR) & ~(BIT13|BIT12)) | BIT12));
-
-			/*
-			 * TxSubMode:
-			 * 	CMR <15>		0	Don't send CRC on Tx Underrun
-			 * 	CMR <14>		x	undefined
-			 * 	CMR <13>		0	Send preamble before openning sync
-			 * 	CMR <12>		0	Send 8-bit syncs, 1=send Syncs per TxLength
-			 *
-			 * TxMode:
-			 * 	CMR <11-8)	0100	MonoSync
-			 *
-			 * 	0x00 0100 xxxx xxxx  04xx
-			 */
-			RegValue |= 0x0400;
-		}
-		else {
-
-		RegValue = 0x0606;
-
-		if ( info->params.flags & HDLC_FLAG_UNDERRUN_ABORT15 )
-			RegValue |= BIT14;
-		else if ( info->params.flags & HDLC_FLAG_UNDERRUN_FLAG )
-			RegValue |= BIT15;
-		else if ( info->params.flags & HDLC_FLAG_UNDERRUN_CRC )
-			RegValue |= BIT15 + BIT14;
-		}
-
-		if ( info->params.preamble != HDLC_PREAMBLE_PATTERN_NONE )
-			RegValue |= BIT13;
-	}
-
-	if ( info->params.mode == MGSL_MODE_HDLC &&
-		(info->params.flags & HDLC_FLAG_SHARE_ZERO) )
-		RegValue |= BIT12;
-
-	if ( info->params.addr_filter != 0xff )
-	{
-		/* set up receive address filtering */
-		usc_OutReg( info, RSR, info->params.addr_filter );
-		RegValue |= BIT4;
-	}
-
-	usc_OutReg( info, CMR, RegValue );
-	info->cmr_value = RegValue;
-
-	/* Receiver mode Register (RMR)
-	 *
-	 * <15..13>  000    encoding
-	 * <12..11>  00     FCS = 16bit CRC CCITT (x15 + x12 + x5 + 1)
-	 * <10>      1      1 = Set CRC to all 1s (use for SDLC/HDLC)
-	 * <9>       0      1 = Include Receive chars in CRC
-	 * <8>       1      1 = Use Abort/PE bit as abort indicator
-	 * <7..6>    00     Even parity
-	 * <5>       0      parity disabled
-	 * <4..2>    000    Receive Char Length = 8 bits
-	 * <1..0>    00     Disable Receiver
-	 *
-	 * 0000 0101 0000 0000 = 0x0500
-	 */
-
-	RegValue = 0x0500;
-
-	switch ( info->params.encoding ) {
-	case HDLC_ENCODING_NRZB:               RegValue |= BIT13; break;
-	case HDLC_ENCODING_NRZI_MARK:          RegValue |= BIT14; break;
-	case HDLC_ENCODING_NRZI_SPACE:	       RegValue |= BIT14 + BIT13; break;
-	case HDLC_ENCODING_BIPHASE_MARK:       RegValue |= BIT15; break;
-	case HDLC_ENCODING_BIPHASE_SPACE:      RegValue |= BIT15 + BIT13; break;
-	case HDLC_ENCODING_BIPHASE_LEVEL:      RegValue |= BIT15 + BIT14; break;
-	case HDLC_ENCODING_DIFF_BIPHASE_LEVEL: RegValue |= BIT15 + BIT14 + BIT13; break;
-	}
-
-	if ( (info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_16_CCITT )
-		RegValue |= BIT9;
-	else if ( (info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_32_CCITT )
-		RegValue |= ( BIT12 | BIT10 | BIT9 );
-
-	usc_OutReg( info, RMR, RegValue );
-
-	/* Set the Receive count Limit Register (RCLR) to 0xffff. */
-	/* When an opening flag of an SDLC frame is recognized the */
-	/* Receive Character count (RCC) is loaded with the value in */
-	/* RCLR. The RCC is decremented for each received byte.  The */
-	/* value of RCC is stored after the closing flag of the frame */
-	/* allowing the frame size to be computed. */
-
-	usc_OutReg( info, RCLR, RCLRVALUE );
-
-	usc_RCmd( info, RCmd_SelectRicrdma_level );
-
-	/* Receive Interrupt Control Register (RICR)
-	 *
-	 * <15..8>	?	RxFIFO DMA Request Level
-	 * <7>		0	Exited Hunt IA (Interrupt Arm)
-	 * <6>		0	Idle Received IA
-	 * <5>		0	Break/Abort IA
-	 * <4>		0	Rx Bound IA
-	 * <3>		1	Queued status reflects oldest 2 bytes in FIFO
-	 * <2>		0	Abort/PE IA
-	 * <1>		1	Rx Overrun IA
-	 * <0>		0	Select TC0 value for readback
-	 *
-	 *	0000 0000 0000 1000 = 0x000a
-	 */
-
-	/* Carry over the Exit Hunt and Idle Received bits */
-	/* in case they have been armed by usc_ArmEvents.   */
-
-	RegValue = usc_InReg( info, RICR ) & 0xc0;
-
-	if ( info->bus_type == MGSL_BUS_TYPE_PCI )
-		usc_OutReg( info, RICR, (u16)(0x030a | RegValue) );
-	else
-		usc_OutReg( info, RICR, (u16)(0x140a | RegValue) );
-
-	/* Unlatch all Rx status bits and clear Rx status IRQ Pending */
-
-	usc_UnlatchRxstatusBits( info, RXSTATUS_ALL );
-	usc_ClearIrqPendingBits( info, RECEIVE_STATUS );
-
-	/* Transmit mode Register (TMR)
-	 *	
-	 * <15..13>	000	encoding
-	 * <12..11>	00	FCS = 16bit CRC CCITT (x15 + x12 + x5 + 1)
-	 * <10>		1	1 = Start CRC as all 1s (use for SDLC/HDLC)
-	 * <9>		0	1 = Tx CRC Enabled
-	 * <8>		0	1 = Append CRC to end of transmit frame
-	 * <7..6>	00	Transmit parity Even
-	 * <5>		0	Transmit parity Disabled
-	 * <4..2>	000	Tx Char Length = 8 bits
-	 * <1..0>	00	Disable Transmitter
-	 *
-	 * 	0000 0100 0000 0000 = 0x0400
-	 */
-
-	RegValue = 0x0400;
-
-	switch ( info->params.encoding ) {
-	case HDLC_ENCODING_NRZB:               RegValue |= BIT13; break;
-	case HDLC_ENCODING_NRZI_MARK:          RegValue |= BIT14; break;
-	case HDLC_ENCODING_NRZI_SPACE:         RegValue |= BIT14 + BIT13; break;
-	case HDLC_ENCODING_BIPHASE_MARK:       RegValue |= BIT15; break;
-	case HDLC_ENCODING_BIPHASE_SPACE:      RegValue |= BIT15 + BIT13; break;
-	case HDLC_ENCODING_BIPHASE_LEVEL:      RegValue |= BIT15 + BIT14; break;
-	case HDLC_ENCODING_DIFF_BIPHASE_LEVEL: RegValue |= BIT15 + BIT14 + BIT13; break;
-	}
-
-	if ( (info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_16_CCITT )
-		RegValue |= BIT9 + BIT8;
-	else if ( (info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_32_CCITT )
-		RegValue |= ( BIT12 | BIT10 | BIT9 | BIT8);
-
-	usc_OutReg( info, TMR, RegValue );
-
-	usc_set_txidle( info );
-
-
-	usc_TCmd( info, TCmd_SelectTicrdma_level );
-
-	/* Transmit Interrupt Control Register (TICR)
-	 *
-	 * <15..8>	?	Transmit FIFO DMA Level
-	 * <7>		0	Present IA (Interrupt Arm)
-	 * <6>		0	Idle Sent IA
-	 * <5>		1	Abort Sent IA
-	 * <4>		1	EOF/EOM Sent IA
-	 * <3>		0	CRC Sent IA
-	 * <2>		1	1 = Wait for SW Trigger to Start Frame
-	 * <1>		1	Tx Underrun IA
-	 * <0>		0	TC0 constant on read back
-	 *
-	 *	0000 0000 0011 0110 = 0x0036
-	 */
-
-	if ( info->bus_type == MGSL_BUS_TYPE_PCI )
-		usc_OutReg( info, TICR, 0x0736 );
-	else								
-		usc_OutReg( info, TICR, 0x1436 );
-
-	usc_UnlatchTxstatusBits( info, TXSTATUS_ALL );
-	usc_ClearIrqPendingBits( info, TRANSMIT_STATUS );
-
-	/*
-	** Transmit Command/Status Register (TCSR)
-	**
-	** <15..12>	0000	TCmd
-	** <11> 	0/1	UnderWait
-	** <10..08>	000	TxIdle
-	** <7>		x	PreSent
-	** <6>         	x	IdleSent
-	** <5>         	x	AbortSent
-	** <4>         	x	EOF/EOM Sent
-	** <3>         	x	CRC Sent
-	** <2>         	x	All Sent
-	** <1>         	x	TxUnder
-	** <0>         	x	TxEmpty
-	** 
-	** 0000 0000 0000 0000 = 0x0000
-	*/
-	info->tcsr_value = 0;
-
-	if ( !PreSL1660 )
-		info->tcsr_value |= TCSR_UNDERWAIT;
-		
-	usc_OutReg( info, TCSR, info->tcsr_value );
-
-	/* Clock mode Control Register (CMCR)
-	 *
-	 * <15..14>	00	counter 1 Source = Disabled
-	 * <13..12> 	00	counter 0 Source = Disabled
-	 * <11..10> 	11	BRG1 Input is TxC Pin
-	 * <9..8>	11	BRG0 Input is TxC Pin
-	 * <7..6>	01	DPLL Input is BRG1 Output
-	 * <5..3>	XXX	TxCLK comes from Port 0
-	 * <2..0>   	XXX	RxCLK comes from Port 1
-	 *
-	 *	0000 1111 0111 0111 = 0x0f77
-	 */
-
-	RegValue = 0x0f40;
-
-	if ( info->params.flags & HDLC_FLAG_RXC_DPLL )
-		RegValue |= 0x0003;	/* RxCLK from DPLL */
-	else if ( info->params.flags & HDLC_FLAG_RXC_BRG )
-		RegValue |= 0x0004;	/* RxCLK from BRG0 */
- 	else if ( info->params.flags & HDLC_FLAG_RXC_TXCPIN)
- 		RegValue |= 0x0006;	/* RxCLK from TXC Input */
-	else
-		RegValue |= 0x0007;	/* RxCLK from Port1 */
-
-	if ( info->params.flags & HDLC_FLAG_TXC_DPLL )
-		RegValue |= 0x0018;	/* TxCLK from DPLL */
-	else if ( info->params.flags & HDLC_FLAG_TXC_BRG )
-		RegValue |= 0x0020;	/* TxCLK from BRG0 */
- 	else if ( info->params.flags & HDLC_FLAG_TXC_RXCPIN)
- 		RegValue |= 0x0038;	/* RxCLK from TXC Input */
-	else
-		RegValue |= 0x0030;	/* TxCLK from Port0 */
-
-	usc_OutReg( info, CMCR, RegValue );
-
-
-	/* Hardware Configuration Register (HCR)
-	 *
-	 * <15..14>	00	CTR0 Divisor:00=32,01=16,10=8,11=4
-	 * <13>		0	CTR1DSel:0=CTR0Div determines CTR0Div
-	 * <12>		0	CVOK:0=report code violation in biphase
-	 * <11..10>	00	DPLL Divisor:00=32,01=16,10=8,11=4
-	 * <9..8>	XX	DPLL mode:00=disable,01=NRZ,10=Biphase,11=Biphase Level
-	 * <7..6>	00	reserved
-	 * <5>		0	BRG1 mode:0=continuous,1=single cycle
-	 * <4>		X	BRG1 Enable
-	 * <3..2>	00	reserved
-	 * <1>		0	BRG0 mode:0=continuous,1=single cycle
-	 * <0>		0	BRG0 Enable
-	 */
-
-	RegValue = 0x0000;
-
-	if ( info->params.flags & (HDLC_FLAG_RXC_DPLL + HDLC_FLAG_TXC_DPLL) ) {
-		u32 XtalSpeed;
-		u32 DpllDivisor;
-		u16 Tc;
-
-		/*  DPLL is enabled. Use BRG1 to provide continuous reference clock  */
-		/*  for DPLL. DPLL mode in HCR is dependent on the encoding used. */
-
-		if ( info->bus_type == MGSL_BUS_TYPE_PCI )
-			XtalSpeed = 11059200;
-		else
-			XtalSpeed = 14745600;
-
-		if ( info->params.flags & HDLC_FLAG_DPLL_DIV16 ) {
-			DpllDivisor = 16;
-			RegValue |= BIT10;
-		}
-		else if ( info->params.flags & HDLC_FLAG_DPLL_DIV8 ) {
-			DpllDivisor = 8;
-			RegValue |= BIT11;
-		}
-		else
-			DpllDivisor = 32;
-
-		/*  Tc = (Xtal/Speed) - 1 */
-		/*  If twice the remainder of (Xtal/Speed) is greater than Speed */
-		/*  then rounding up gives a more precise time constant. Instead */
-		/*  of rounding up and then subtracting 1 we just don't subtract */
-		/*  the one in this case. */
-
- 		/*--------------------------------------------------
- 		 * ejz: for DPLL mode, application should use the
- 		 * same clock speed as the partner system, even 
- 		 * though clocking is derived from the input RxData.
- 		 * In case the user uses a 0 for the clock speed,
- 		 * default to 0xffffffff and don't try to divide by
- 		 * zero
- 		 *--------------------------------------------------*/
- 		if ( info->params.clock_speed )
- 		{
-			Tc = (u16)((XtalSpeed/DpllDivisor)/info->params.clock_speed);
-			if ( !((((XtalSpeed/DpllDivisor) % info->params.clock_speed) * 2)
-			       / info->params.clock_speed) )
-				Tc--;
- 		}
- 		else
- 			Tc = -1;
- 				  
-
-		/* Write 16-bit Time Constant for BRG1 */
-		usc_OutReg( info, TC1R, Tc );
-
-		RegValue |= BIT4;		/* enable BRG1 */
-
-		switch ( info->params.encoding ) {
-		case HDLC_ENCODING_NRZ:
-		case HDLC_ENCODING_NRZB:
-		case HDLC_ENCODING_NRZI_MARK:
-		case HDLC_ENCODING_NRZI_SPACE: RegValue |= BIT8; break;
-		case HDLC_ENCODING_BIPHASE_MARK:
-		case HDLC_ENCODING_BIPHASE_SPACE: RegValue |= BIT9; break;
-		case HDLC_ENCODING_BIPHASE_LEVEL:
-		case HDLC_ENCODING_DIFF_BIPHASE_LEVEL: RegValue |= BIT9 + BIT8; break;
-		}
-	}
-
-	usc_OutReg( info, HCR, RegValue );
-
-
-	/* Channel Control/status Register (CCSR)
-	 *
-	 * <15>		X	RCC FIFO Overflow status (RO)
-	 * <14>		X	RCC FIFO Not Empty status (RO)
-	 * <13>		0	1 = Clear RCC FIFO (WO)
-	 * <12>		X	DPLL Sync (RW)
-	 * <11>		X	DPLL 2 Missed Clocks status (RO)
-	 * <10>		X	DPLL 1 Missed Clock status (RO)
-	 * <9..8>	00	DPLL Resync on rising and falling edges (RW)
-	 * <7>		X	SDLC Loop On status (RO)
-	 * <6>		X	SDLC Loop Send status (RO)
-	 * <5>		1	Bypass counters for TxClk and RxClk (RW)
-	 * <4..2>   	000	Last Char of SDLC frame has 8 bits (RW)
-	 * <1..0>   	00	reserved
-	 *
-	 *	0000 0000 0010 0000 = 0x0020
-	 */
-
-	usc_OutReg( info, CCSR, 0x1020 );
-
-
-	if ( info->params.flags & HDLC_FLAG_AUTO_CTS ) {
-		usc_OutReg( info, SICR,
-			    (u16)(usc_InReg(info,SICR) | SICR_CTS_INACTIVE) );
-	}
-	
-
-	/* enable Master Interrupt Enable bit (MIE) */
-	usc_EnableMasterIrqBit( info );
-
-	usc_ClearIrqPendingBits( info, RECEIVE_STATUS + RECEIVE_DATA +
-				TRANSMIT_STATUS + TRANSMIT_DATA + MISC);
-
-	/* arm RCC underflow interrupt */
-	usc_OutReg(info, SICR, (u16)(usc_InReg(info,SICR) | BIT3));
-	usc_EnableInterrupts(info, MISC);
-
-	info->mbre_bit = 0;
-	outw( 0, info->io_base ); 			/* clear Master Bus Enable (DCAR) */
-	usc_DmaCmd( info, DmaCmd_ResetAllChannels );	/* disable both DMA channels */
-	info->mbre_bit = BIT8;
-	outw( BIT8, info->io_base );			/* set Master Bus Enable (DCAR) */
-
-	if (info->bus_type == MGSL_BUS_TYPE_ISA) {
-		/* Enable DMAEN (Port 7, Bit 14) */
-		/* This connects the DMA request signal to the ISA bus */
-		usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT15) & ~BIT14));
-	}
-
-	/* DMA Control Register (DCR)
-	 *
-	 * <15..14>	10	Priority mode = Alternating Tx/Rx
-	 *		01	Rx has priority
-	 *		00	Tx has priority
-	 *
-	 * <13>		1	Enable Priority Preempt per DCR<15..14>
-	 *			(WARNING DCR<11..10> must be 00 when this is 1)
-	 *		0	Choose activate channel per DCR<11..10>
-	 *
-	 * <12>		0	Little Endian for Array/List
-	 * <11..10>	00	Both Channels can use each bus grant
-	 * <9..6>	0000	reserved
-	 * <5>		0	7 CLK - Minimum Bus Re-request Interval
-	 * <4>		0	1 = drive D/C and S/D pins
-	 * <3>		1	1 = Add one wait state to all DMA cycles.
-	 * <2>		0	1 = Strobe /UAS on every transfer.
-	 * <1..0>	11	Addr incrementing only affects LS24 bits
-	 *
-	 *	0110 0000 0000 1011 = 0x600b
-	 */
-
-	if ( info->bus_type == MGSL_BUS_TYPE_PCI ) {
-		/* PCI adapter does not need DMA wait state */
-		usc_OutDmaReg( info, DCR, 0xa00b );
-	}
-	else
-		usc_OutDmaReg( info, DCR, 0x800b );
-
-
-	/* Receive DMA mode Register (RDMR)
-	 *
-	 * <15..14>	11	DMA mode = Linked List Buffer mode
-	 * <13>		1	RSBinA/L = store Rx status Block in Arrary/List entry
-	 * <12>		1	Clear count of List Entry after fetching
-	 * <11..10>	00	Address mode = Increment
-	 * <9>		1	Terminate Buffer on RxBound
-	 * <8>		0	Bus Width = 16bits
-	 * <7..0>	?	status Bits (write as 0s)
-	 *
-	 * 1111 0010 0000 0000 = 0xf200
-	 */
-
-	usc_OutDmaReg( info, RDMR, 0xf200 );
-
-
-	/* Transmit DMA mode Register (TDMR)
-	 *
-	 * <15..14>	11	DMA mode = Linked List Buffer mode
-	 * <13>		1	TCBinA/L = fetch Tx Control Block from List entry
-	 * <12>		1	Clear count of List Entry after fetching
-	 * <11..10>	00	Address mode = Increment
-	 * <9>		1	Terminate Buffer on end of frame
-	 * <8>		0	Bus Width = 16bits
-	 * <7..0>	?	status Bits (Read Only so write as 0)
-	 *
-	 *	1111 0010 0000 0000 = 0xf200
-	 */
-
-	usc_OutDmaReg( info, TDMR, 0xf200 );
-
-
-	/* DMA Interrupt Control Register (DICR)
-	 *
-	 * <15>		1	DMA Interrupt Enable
-	 * <14>		0	1 = Disable IEO from USC
-	 * <13>		0	1 = Don't provide vector during IntAck
-	 * <12>		1	1 = Include status in Vector
-	 * <10..2>	0	reserved, Must be 0s
-	 * <1>		0	1 = Rx DMA Interrupt Enabled
-	 * <0>		0	1 = Tx DMA Interrupt Enabled
-	 *
-	 *	1001 0000 0000 0000 = 0x9000
-	 */
-
-	usc_OutDmaReg( info, DICR, 0x9000 );
-
-	usc_InDmaReg( info, RDMR );		/* clear pending receive DMA IRQ bits */
-	usc_InDmaReg( info, TDMR );		/* clear pending transmit DMA IRQ bits */
-	usc_OutDmaReg( info, CDIR, 0x0303 );	/* clear IUS and Pending for Tx and Rx */
-
-	/* Channel Control Register (CCR)
-	 *
-	 * <15..14>	10	Use 32-bit Tx Control Blocks (TCBs)
-	 * <13>		0	Trigger Tx on SW Command Disabled
-	 * <12>		0	Flag Preamble Disabled
-	 * <11..10>	00	Preamble Length
-	 * <9..8>	00	Preamble Pattern
-	 * <7..6>	10	Use 32-bit Rx status Blocks (RSBs)
-	 * <5>		0	Trigger Rx on SW Command Disabled
-	 * <4..0>	0	reserved
-	 *
-	 *	1000 0000 1000 0000 = 0x8080
-	 */
-
-	RegValue = 0x8080;
-
-	switch ( info->params.preamble_length ) {
-	case HDLC_PREAMBLE_LENGTH_16BITS: RegValue |= BIT10; break;
-	case HDLC_PREAMBLE_LENGTH_32BITS: RegValue |= BIT11; break;
-	case HDLC_PREAMBLE_LENGTH_64BITS: RegValue |= BIT11 + BIT10; break;
-	}
-
-	switch ( info->params.preamble ) {
-	case HDLC_PREAMBLE_PATTERN_FLAGS: RegValue |= BIT8 + BIT12; break;
-	case HDLC_PREAMBLE_PATTERN_ONES:  RegValue |= BIT8; break;
-	case HDLC_PREAMBLE_PATTERN_10:    RegValue |= BIT9; break;
-	case HDLC_PREAMBLE_PATTERN_01:    RegValue |= BIT9 + BIT8; break;
-	}
-
-	usc_OutReg( info, CCR, RegValue );
-
-
-	/*
-	 * Burst/Dwell Control Register
-	 *
-	 * <15..8>	0x20	Maximum number of transfers per bus grant
-	 * <7..0>	0x00	Maximum number of clock cycles per bus grant
-	 */
-
-	if ( info->bus_type == MGSL_BUS_TYPE_PCI ) {
-		/* don't limit bus occupancy on PCI adapter */
-		usc_OutDmaReg( info, BDCR, 0x0000 );
-	}
-	else
-		usc_OutDmaReg( info, BDCR, 0x2000 );
-
-	usc_stop_transmitter(info);
-	usc_stop_receiver(info);
-	
-}	/* end of usc_set_sdlc_mode() */
-
-/* usc_enable_loopback()
- *
- * Set the 16C32 for internal loopback mode.
- * The TxCLK and RxCLK signals are generated from the BRG0 and
- * the TxD is looped back to the RxD internally.
- *
- * Arguments:		info	pointer to device instance data
- *			enable	1 = enable loopback, 0 = disable
- * Return Value:	None
- */
-static void usc_enable_loopback(struct mgsl_struct *info, int enable)
-{
-	if (enable) {
-		/* blank external TXD output */
-		usc_OutReg(info,IOCR,usc_InReg(info,IOCR) | (BIT7+BIT6));
-	
-		/* Clock mode Control Register (CMCR)
-		 *
-		 * <15..14>	00	counter 1 Disabled
-		 * <13..12> 	00	counter 0 Disabled
-		 * <11..10> 	11	BRG1 Input is TxC Pin
-		 * <9..8>	11	BRG0 Input is TxC Pin
-		 * <7..6>	01	DPLL Input is BRG1 Output
-		 * <5..3>	100	TxCLK comes from BRG0
-		 * <2..0>   	100	RxCLK comes from BRG0
-		 *
-		 * 0000 1111 0110 0100 = 0x0f64
-		 */
-
-		usc_OutReg( info, CMCR, 0x0f64 );
-
-		/* Write 16-bit Time Constant for BRG0 */
-		/* use clock speed if available, otherwise use 8 for diagnostics */
-		if (info->params.clock_speed) {
-			if (info->bus_type == MGSL_BUS_TYPE_PCI)
-				usc_OutReg(info, TC0R, (u16)((11059200/info->params.clock_speed)-1));
-			else
-				usc_OutReg(info, TC0R, (u16)((14745600/info->params.clock_speed)-1));
-		} else
-			usc_OutReg(info, TC0R, (u16)8);
-
-		/* Hardware Configuration Register (HCR) Clear Bit 1, BRG0
-		   mode = Continuous Set Bit 0 to enable BRG0.  */
-		usc_OutReg( info, HCR, (u16)((usc_InReg( info, HCR ) & ~BIT1) | BIT0) );
-
-		/* Input/Output Control Reg, <2..0> = 100, Drive RxC pin with BRG0 */
-		usc_OutReg(info, IOCR, (u16)((usc_InReg(info, IOCR) & 0xfff8) | 0x0004));
-
-		/* set Internal Data loopback mode */
-		info->loopback_bits = 0x300;
-		outw( 0x0300, info->io_base + CCAR );
-	} else {
-		/* enable external TXD output */
-		usc_OutReg(info,IOCR,usc_InReg(info,IOCR) & ~(BIT7+BIT6));
-	
-		/* clear Internal Data loopback mode */
-		info->loopback_bits = 0;
-		outw( 0,info->io_base + CCAR );
-	}
-	
-}	/* end of usc_enable_loopback() */
-
-/* usc_enable_aux_clock()
- *
- * Enabled the AUX clock output at the specified frequency.
- *
- * Arguments:
- *
- *	info		pointer to device extension
- *	data_rate	data rate of clock in bits per second
- *			A data rate of 0 disables the AUX clock.
- *
- * Return Value:	None
- */
-static void usc_enable_aux_clock( struct mgsl_struct *info, u32 data_rate )
-{
-	u32 XtalSpeed;
-	u16 Tc;
-
-	if ( data_rate ) {
-		if ( info->bus_type == MGSL_BUS_TYPE_PCI )
-			XtalSpeed = 11059200;
-		else
-			XtalSpeed = 14745600;
-
-
-		/* Tc = (Xtal/Speed) - 1 */
-		/* If twice the remainder of (Xtal/Speed) is greater than Speed */
-		/* then rounding up gives a more precise time constant. Instead */
-		/* of rounding up and then subtracting 1 we just don't subtract */
-		/* the one in this case. */
-
-
-		Tc = (u16)(XtalSpeed/data_rate);
-		if ( !(((XtalSpeed % data_rate) * 2) / data_rate) )
-			Tc--;
-
-		/* Write 16-bit Time Constant for BRG0 */
-		usc_OutReg( info, TC0R, Tc );
-
-		/*
-		 * Hardware Configuration Register (HCR)
-		 * Clear Bit 1, BRG0 mode = Continuous
-		 * Set Bit 0 to enable BRG0.
-		 */
-
-		usc_OutReg( info, HCR, (u16)((usc_InReg( info, HCR ) & ~BIT1) | BIT0) );
-
-		/* Input/Output Control Reg, <2..0> = 100, Drive RxC pin with BRG0 */
-		usc_OutReg( info, IOCR, (u16)((usc_InReg(info, IOCR) & 0xfff8) | 0x0004) );
-	} else {
-		/* data rate == 0 so turn off BRG0 */
-		usc_OutReg( info, HCR, (u16)(usc_InReg( info, HCR ) & ~BIT0) );
-	}
-
-}	/* end of usc_enable_aux_clock() */
-
-/*
- *
- * usc_process_rxoverrun_sync()
- *
- *		This function processes a receive overrun by resetting the
- *		receive DMA buffers and issuing a Purge Rx FIFO command
- *		to allow the receiver to continue receiving.
- *
- * Arguments:
- *
- *	info		pointer to device extension
- *
- * Return Value: None
- */
-static void usc_process_rxoverrun_sync( struct mgsl_struct *info )
-{
-	int start_index;
-	int end_index;
-	int frame_start_index;
-	bool start_of_frame_found = false;
-	bool end_of_frame_found = false;
-	bool reprogram_dma = false;
-
-	DMABUFFERENTRY *buffer_list = info->rx_buffer_list;
-	u32 phys_addr;
-
-	usc_DmaCmd( info, DmaCmd_PauseRxChannel );
-	usc_RCmd( info, RCmd_EnterHuntmode );
-	usc_RTCmd( info, RTCmd_PurgeRxFifo );
-
-	/* CurrentRxBuffer points to the 1st buffer of the next */
-	/* possibly available receive frame. */
-	
-	frame_start_index = start_index = end_index = info->current_rx_buffer;
-
-	/* Search for an unfinished string of buffers. This means */
-	/* that a receive frame started (at least one buffer with */
-	/* count set to zero) but there is no terminiting buffer */
-	/* (status set to non-zero). */
-
-	while( !buffer_list[end_index].count )
-	{
-		/* Count field has been reset to zero by 16C32. */
-		/* This buffer is currently in use. */
-
-		if ( !start_of_frame_found )
-		{
-			start_of_frame_found = true;
-			frame_start_index = end_index;
-			end_of_frame_found = false;
-		}
-
-		if ( buffer_list[end_index].status )
-		{
-			/* Status field has been set by 16C32. */
-			/* This is the last buffer of a received frame. */
-
-			/* We want to leave the buffers for this frame intact. */
-			/* Move on to next possible frame. */
-
-			start_of_frame_found = false;
-			end_of_frame_found = true;
-		}
-
-  		/* advance to next buffer entry in linked list */
-  		end_index++;
-  		if ( end_index == info->rx_buffer_count )
-  			end_index = 0;
-
-		if ( start_index == end_index )
-		{
-			/* The entire list has been searched with all Counts == 0 and */
-			/* all Status == 0. The receive buffers are */
-			/* completely screwed, reset all receive buffers! */
-			mgsl_reset_rx_dma_buffers( info );
-			frame_start_index = 0;
-			start_of_frame_found = false;
-			reprogram_dma = true;
-			break;
-		}
-	}
-
-	if ( start_of_frame_found && !end_of_frame_found )
-	{
-		/* There is an unfinished string of receive DMA buffers */
-		/* as a result of the receiver overrun. */
-
-		/* Reset the buffers for the unfinished frame */
-		/* and reprogram the receive DMA controller to start */
-		/* at the 1st buffer of unfinished frame. */
-
-		start_index = frame_start_index;
-
-		do
-		{
-			*((unsigned long *)&(info->rx_buffer_list[start_index++].count)) = DMABUFFERSIZE;
-
-  			/* Adjust index for wrap around. */
-  			if ( start_index == info->rx_buffer_count )
-  				start_index = 0;
-
-		} while( start_index != end_index );
-
-		reprogram_dma = true;
-	}
-
-	if ( reprogram_dma )
-	{
-		usc_UnlatchRxstatusBits(info,RXSTATUS_ALL);
-		usc_ClearIrqPendingBits(info, RECEIVE_DATA|RECEIVE_STATUS);
-		usc_UnlatchRxstatusBits(info, RECEIVE_DATA|RECEIVE_STATUS);
-		
-		usc_EnableReceiver(info,DISABLE_UNCONDITIONAL);
-		
-		/* This empties the receive FIFO and loads the RCC with RCLR */
-		usc_OutReg( info, CCSR, (u16)(usc_InReg(info,CCSR) | BIT13) );
-
-		/* program 16C32 with physical address of 1st DMA buffer entry */
-		phys_addr = info->rx_buffer_list[frame_start_index].phys_entry;
-		usc_OutDmaReg( info, NRARL, (u16)phys_addr );
-		usc_OutDmaReg( info, NRARU, (u16)(phys_addr >> 16) );
-
-		usc_UnlatchRxstatusBits( info, RXSTATUS_ALL );
-		usc_ClearIrqPendingBits( info, RECEIVE_DATA + RECEIVE_STATUS );
-		usc_EnableInterrupts( info, RECEIVE_STATUS );
-
-		/* 1. Arm End of Buffer (EOB) Receive DMA Interrupt (BIT2 of RDIAR) */
-		/* 2. Enable Receive DMA Interrupts (BIT1 of DICR) */
-
-		usc_OutDmaReg( info, RDIAR, BIT3 + BIT2 );
-		usc_OutDmaReg( info, DICR, (u16)(usc_InDmaReg(info,DICR) | BIT1) );
-		usc_DmaCmd( info, DmaCmd_InitRxChannel );
-		if ( info->params.flags & HDLC_FLAG_AUTO_DCD )
-			usc_EnableReceiver(info,ENABLE_AUTO_DCD);
-		else
-			usc_EnableReceiver(info,ENABLE_UNCONDITIONAL);
-	}
-	else
-	{
-		/* This empties the receive FIFO and loads the RCC with RCLR */
-		usc_OutReg( info, CCSR, (u16)(usc_InReg(info,CCSR) | BIT13) );
-		usc_RTCmd( info, RTCmd_PurgeRxFifo );
-	}
-
-}	/* end of usc_process_rxoverrun_sync() */
-
-/* usc_stop_receiver()
- *
- *	Disable USC receiver
- *
- * Arguments:		info	pointer to device instance data
- * Return Value:	None
- */
-static void usc_stop_receiver( struct mgsl_struct *info )
-{
-	if (debug_level >= DEBUG_LEVEL_ISR)
-		printk("%s(%d):usc_stop_receiver(%s)\n",
-			 __FILE__,__LINE__, info->device_name );
-			 
-	/* Disable receive DMA channel. */
-	/* This also disables receive DMA channel interrupts */
-	usc_DmaCmd( info, DmaCmd_ResetRxChannel );
-
-	usc_UnlatchRxstatusBits( info, RXSTATUS_ALL );
-	usc_ClearIrqPendingBits( info, RECEIVE_DATA + RECEIVE_STATUS );
-	usc_DisableInterrupts( info, RECEIVE_DATA + RECEIVE_STATUS );
-
-	usc_EnableReceiver(info,DISABLE_UNCONDITIONAL);
-
-	/* This empties the receive FIFO and loads the RCC with RCLR */
-	usc_OutReg( info, CCSR, (u16)(usc_InReg(info,CCSR) | BIT13) );
-	usc_RTCmd( info, RTCmd_PurgeRxFifo );
-
-	info->rx_enabled = false;
-	info->rx_overflow = false;
-	info->rx_rcc_underrun = false;
-	
-}	/* end of stop_receiver() */
-
-/* usc_start_receiver()
- *
- *	Enable the USC receiver 
- *
- * Arguments:		info	pointer to device instance data
- * Return Value:	None
- */
-static void usc_start_receiver( struct mgsl_struct *info )
-{
-	u32 phys_addr;
-	
-	if (debug_level >= DEBUG_LEVEL_ISR)
-		printk("%s(%d):usc_start_receiver(%s)\n",
-			 __FILE__,__LINE__, info->device_name );
-
-	mgsl_reset_rx_dma_buffers( info );
-	usc_stop_receiver( info );
-
-	usc_OutReg( info, CCSR, (u16)(usc_InReg(info,CCSR) | BIT13) );
-	usc_RTCmd( info, RTCmd_PurgeRxFifo );
-
-	if ( info->params.mode == MGSL_MODE_HDLC ||
-		info->params.mode == MGSL_MODE_RAW ) {
-		/* DMA mode Transfers */
-		/* Program the DMA controller. */
-		/* Enable the DMA controller end of buffer interrupt. */
-
-		/* program 16C32 with physical address of 1st DMA buffer entry */
-		phys_addr = info->rx_buffer_list[0].phys_entry;
-		usc_OutDmaReg( info, NRARL, (u16)phys_addr );
-		usc_OutDmaReg( info, NRARU, (u16)(phys_addr >> 16) );
-
-		usc_UnlatchRxstatusBits( info, RXSTATUS_ALL );
-		usc_ClearIrqPendingBits( info, RECEIVE_DATA + RECEIVE_STATUS );
-		usc_EnableInterrupts( info, RECEIVE_STATUS );
-
-		/* 1. Arm End of Buffer (EOB) Receive DMA Interrupt (BIT2 of RDIAR) */
-		/* 2. Enable Receive DMA Interrupts (BIT1 of DICR) */
-
-		usc_OutDmaReg( info, RDIAR, BIT3 + BIT2 );
-		usc_OutDmaReg( info, DICR, (u16)(usc_InDmaReg(info,DICR) | BIT1) );
-		usc_DmaCmd( info, DmaCmd_InitRxChannel );
-		if ( info->params.flags & HDLC_FLAG_AUTO_DCD )
-			usc_EnableReceiver(info,ENABLE_AUTO_DCD);
-		else
-			usc_EnableReceiver(info,ENABLE_UNCONDITIONAL);
-	} else {
-		usc_UnlatchRxstatusBits(info, RXSTATUS_ALL);
-		usc_ClearIrqPendingBits(info, RECEIVE_DATA + RECEIVE_STATUS);
-		usc_EnableInterrupts(info, RECEIVE_DATA);
-
-		usc_RTCmd( info, RTCmd_PurgeRxFifo );
-		usc_RCmd( info, RCmd_EnterHuntmode );
-
-		usc_EnableReceiver(info,ENABLE_UNCONDITIONAL);
-	}
-
-	usc_OutReg( info, CCSR, 0x1020 );
-
-	info->rx_enabled = true;
-
-}	/* end of usc_start_receiver() */
-
-/* usc_start_transmitter()
- *
- *	Enable the USC transmitter and send a transmit frame if
- *	one is loaded in the DMA buffers.
- *
- * Arguments:		info	pointer to device instance data
- * Return Value:	None
- */
-static void usc_start_transmitter( struct mgsl_struct *info )
-{
-	u32 phys_addr;
-	unsigned int FrameSize;
-
-	if (debug_level >= DEBUG_LEVEL_ISR)
-		printk("%s(%d):usc_start_transmitter(%s)\n",
-			 __FILE__,__LINE__, info->device_name );
-			 
-	if ( info->xmit_cnt ) {
-
-		/* If auto RTS enabled and RTS is inactive, then assert */
-		/* RTS and set a flag indicating that the driver should */
-		/* negate RTS when the transmission completes. */
-
-		info->drop_rts_on_tx_done = false;
-
-		if ( info->params.flags & HDLC_FLAG_AUTO_RTS ) {
-			usc_get_serial_signals( info );
-			if ( !(info->serial_signals & SerialSignal_RTS) ) {
-				info->serial_signals |= SerialSignal_RTS;
-				usc_set_serial_signals( info );
-				info->drop_rts_on_tx_done = true;
-			}
-		}
-
-
-		if ( info->params.mode == MGSL_MODE_ASYNC ) {
-			if ( !info->tx_active ) {
-				usc_UnlatchTxstatusBits(info, TXSTATUS_ALL);
-				usc_ClearIrqPendingBits(info, TRANSMIT_STATUS + TRANSMIT_DATA);
-				usc_EnableInterrupts(info, TRANSMIT_DATA);
-				usc_load_txfifo(info);
-			}
-		} else {
-			/* Disable transmit DMA controller while programming. */
-			usc_DmaCmd( info, DmaCmd_ResetTxChannel );
-			
-			/* Transmit DMA buffer is loaded, so program USC */
-			/* to send the frame contained in the buffers.	 */
-
-			FrameSize = info->tx_buffer_list[info->start_tx_dma_buffer].rcc;
-
-			/* if operating in Raw sync mode, reset the rcc component
-			 * of the tx dma buffer entry, otherwise, the serial controller
-			 * will send a closing sync char after this count.
-			 */
-	    		if ( info->params.mode == MGSL_MODE_RAW )
-				info->tx_buffer_list[info->start_tx_dma_buffer].rcc = 0;
-
-			/* Program the Transmit Character Length Register (TCLR) */
-			/* and clear FIFO (TCC is loaded with TCLR on FIFO clear) */
-			usc_OutReg( info, TCLR, (u16)FrameSize );
-
-			usc_RTCmd( info, RTCmd_PurgeTxFifo );
-
-			/* Program the address of the 1st DMA Buffer Entry in linked list */
-			phys_addr = info->tx_buffer_list[info->start_tx_dma_buffer].phys_entry;
-			usc_OutDmaReg( info, NTARL, (u16)phys_addr );
-			usc_OutDmaReg( info, NTARU, (u16)(phys_addr >> 16) );
-
-			usc_UnlatchTxstatusBits( info, TXSTATUS_ALL );
-			usc_ClearIrqPendingBits( info, TRANSMIT_STATUS );
-			usc_EnableInterrupts( info, TRANSMIT_STATUS );
-
-			if ( info->params.mode == MGSL_MODE_RAW &&
-					info->num_tx_dma_buffers > 1 ) {
-			   /* When running external sync mode, attempt to 'stream' transmit  */
-			   /* by filling tx dma buffers as they become available. To do this */
-			   /* we need to enable Tx DMA EOB Status interrupts :               */
-			   /*                                                                */
-			   /* 1. Arm End of Buffer (EOB) Transmit DMA Interrupt (BIT2 of TDIAR) */
-			   /* 2. Enable Transmit DMA Interrupts (BIT0 of DICR) */
-
-			   usc_OutDmaReg( info, TDIAR, BIT2|BIT3 );
-			   usc_OutDmaReg( info, DICR, (u16)(usc_InDmaReg(info,DICR) | BIT0) );
-			}
-
-			/* Initialize Transmit DMA Channel */
-			usc_DmaCmd( info, DmaCmd_InitTxChannel );
-			
-			usc_TCmd( info, TCmd_SendFrame );
-			
-			mod_timer(&info->tx_timer, jiffies +
-					msecs_to_jiffies(5000));
-		}
-		info->tx_active = true;
-	}
-
-	if ( !info->tx_enabled ) {
-		info->tx_enabled = true;
-		if ( info->params.flags & HDLC_FLAG_AUTO_CTS )
-			usc_EnableTransmitter(info,ENABLE_AUTO_CTS);
-		else
-			usc_EnableTransmitter(info,ENABLE_UNCONDITIONAL);
-	}
-
-}	/* end of usc_start_transmitter() */
-
-/* usc_stop_transmitter()
- *
- *	Stops the transmitter and DMA
- *
- * Arguments:		info	pointer to device isntance data
- * Return Value:	None
- */
-static void usc_stop_transmitter( struct mgsl_struct *info )
-{
-	if (debug_level >= DEBUG_LEVEL_ISR)
-		printk("%s(%d):usc_stop_transmitter(%s)\n",
-			 __FILE__,__LINE__, info->device_name );
-			 
-	del_timer(&info->tx_timer);	
-			 
-	usc_UnlatchTxstatusBits( info, TXSTATUS_ALL );
-	usc_ClearIrqPendingBits( info, TRANSMIT_STATUS + TRANSMIT_DATA );
-	usc_DisableInterrupts( info, TRANSMIT_STATUS + TRANSMIT_DATA );
-
-	usc_EnableTransmitter(info,DISABLE_UNCONDITIONAL);
-	usc_DmaCmd( info, DmaCmd_ResetTxChannel );
-	usc_RTCmd( info, RTCmd_PurgeTxFifo );
-
-	info->tx_enabled = false;
-	info->tx_active = false;
-
-}	/* end of usc_stop_transmitter() */
-
-/* usc_load_txfifo()
- *
- *	Fill the transmit FIFO until the FIFO is full or
- *	there is no more data to load.
- *
- * Arguments:		info	pointer to device extension (instance data)
- * Return Value:	None
- */
-static void usc_load_txfifo( struct mgsl_struct *info )
-{
-	int Fifocount;
-	u8 TwoBytes[2];
-	
-	if ( !info->xmit_cnt && !info->x_char )
-		return; 
-		
-	/* Select transmit FIFO status readback in TICR */
-	usc_TCmd( info, TCmd_SelectTicrTxFifostatus );
-
-	/* load the Transmit FIFO until FIFOs full or all data sent */
-
-	while( (Fifocount = usc_InReg(info, TICR) >> 8) && info->xmit_cnt ) {
-		/* there is more space in the transmit FIFO and */
-		/* there is more data in transmit buffer */
-
-		if ( (info->xmit_cnt > 1) && (Fifocount > 1) && !info->x_char ) {
- 			/* write a 16-bit word from transmit buffer to 16C32 */
-				
-			TwoBytes[0] = info->xmit_buf[info->xmit_tail++];
-			info->xmit_tail = info->xmit_tail & (SERIAL_XMIT_SIZE-1);
-			TwoBytes[1] = info->xmit_buf[info->xmit_tail++];
-			info->xmit_tail = info->xmit_tail & (SERIAL_XMIT_SIZE-1);
-			
-			outw( *((u16 *)TwoBytes), info->io_base + DATAREG);
-				
-			info->xmit_cnt -= 2;
-			info->icount.tx += 2;
-		} else {
-			/* only 1 byte left to transmit or 1 FIFO slot left */
-			
-			outw( (inw( info->io_base + CCAR) & 0x0780) | (TDR+LSBONLY),
-				info->io_base + CCAR );
-			
-			if (info->x_char) {
-				/* transmit pending high priority char */
-				outw( info->x_char,info->io_base + CCAR );
-				info->x_char = 0;
-			} else {
-				outw( info->xmit_buf[info->xmit_tail++],info->io_base + CCAR );
-				info->xmit_tail = info->xmit_tail & (SERIAL_XMIT_SIZE-1);
-				info->xmit_cnt--;
-			}
-			info->icount.tx++;
-		}
-	}
-
-}	/* end of usc_load_txfifo() */
-
-/* usc_reset()
- *
- *	Reset the adapter to a known state and prepare it for further use.
- *
- * Arguments:		info	pointer to device instance data
- * Return Value:	None
- */
-static void usc_reset( struct mgsl_struct *info )
-{
-	if ( info->bus_type == MGSL_BUS_TYPE_PCI ) {
-		int i;
-		u32 readval;
-
-		/* Set BIT30 of Misc Control Register */
-		/* (Local Control Register 0x50) to force reset of USC. */
-
-		volatile u32 *MiscCtrl = (u32 *)(info->lcr_base + 0x50);
-		u32 *LCR0BRDR = (u32 *)(info->lcr_base + 0x28);
-
-		info->misc_ctrl_value |= BIT30;
-		*MiscCtrl = info->misc_ctrl_value;
-
-		/*
-		 * Force at least 170ns delay before clearing 
-		 * reset bit. Each read from LCR takes at least 
-		 * 30ns so 10 times for 300ns to be safe.
-		 */
-		for(i=0;i<10;i++)
-			readval = *MiscCtrl;
-
-		info->misc_ctrl_value &= ~BIT30;
-		*MiscCtrl = info->misc_ctrl_value;
-
-		*LCR0BRDR = BUS_DESCRIPTOR(
-			1,		// Write Strobe Hold (0-3)
-			2,		// Write Strobe Delay (0-3)
-			2,		// Read Strobe Delay  (0-3)
-			0,		// NWDD (Write data-data) (0-3)
-			4,		// NWAD (Write Addr-data) (0-31)
-			0,		// NXDA (Read/Write Data-Addr) (0-3)
-			0,		// NRDD (Read Data-Data) (0-3)
-			5		// NRAD (Read Addr-Data) (0-31)
-			);
-	} else {
-		/* do HW reset */
-		outb( 0,info->io_base + 8 );
-	}
-
-	info->mbre_bit = 0;
-	info->loopback_bits = 0;
-	info->usc_idle_mode = 0;
-
-	/*
-	 * Program the Bus Configuration Register (BCR)
-	 *
-	 * <15>		0	Don't use separate address
-	 * <14..6>	0	reserved
-	 * <5..4>	00	IAckmode = Default, don't care
-	 * <3>		1	Bus Request Totem Pole output
-	 * <2>		1	Use 16 Bit data bus
-	 * <1>		0	IRQ Totem Pole output
-	 * <0>		0	Don't Shift Right Addr
-	 *
-	 * 0000 0000 0000 1100 = 0x000c
-	 *
-	 * By writing to io_base + SDPIN the Wait/Ack pin is
-	 * programmed to work as a Wait pin.
-	 */
-	
-	outw( 0x000c,info->io_base + SDPIN );
-
-
-	outw( 0,info->io_base );
-	outw( 0,info->io_base + CCAR );
-
-	/* select little endian byte ordering */
-	usc_RTCmd( info, RTCmd_SelectLittleEndian );
-
-
-	/* Port Control Register (PCR)
-	 *
-	 * <15..14>	11	Port 7 is Output (~DMAEN, Bit 14 : 0 = Enabled)
-	 * <13..12>	11	Port 6 is Output (~INTEN, Bit 12 : 0 = Enabled)
-	 * <11..10> 	00	Port 5 is Input (No Connect, Don't Care)
-	 * <9..8> 	00	Port 4 is Input (No Connect, Don't Care)
-	 * <7..6>	11	Port 3 is Output (~RTS, Bit 6 : 0 = Enabled )
-	 * <5..4>	11	Port 2 is Output (~DTR, Bit 4 : 0 = Enabled )
-	 * <3..2>	01	Port 1 is Input (Dedicated RxC)
-	 * <1..0>	01	Port 0 is Input (Dedicated TxC)
-	 *
-	 *	1111 0000 1111 0101 = 0xf0f5
-	 */
-
-	usc_OutReg( info, PCR, 0xf0f5 );
-
-
-	/*
-	 * Input/Output Control Register
-	 *
-	 * <15..14>	00	CTS is active low input
-	 * <13..12>	00	DCD is active low input
-	 * <11..10>	00	TxREQ pin is input (DSR)
-	 * <9..8>	00	RxREQ pin is input (RI)
-	 * <7..6>	00	TxD is output (Transmit Data)
-	 * <5..3>	000	TxC Pin in Input (14.7456MHz Clock)
-	 * <2..0>	100	RxC is Output (drive with BRG0)
-	 *
-	 *	0000 0000 0000 0100 = 0x0004
-	 */
-
-	usc_OutReg( info, IOCR, 0x0004 );
-
-}	/* end of usc_reset() */
-
-/* usc_set_async_mode()
- *
- *	Program adapter for asynchronous communications.
- *
- * Arguments:		info		pointer to device instance data
- * Return Value:	None
- */
-static void usc_set_async_mode( struct mgsl_struct *info )
-{
-	u16 RegValue;
-
-	/* disable interrupts while programming USC */
-	usc_DisableMasterIrqBit( info );
-
-	outw( 0, info->io_base ); 			/* clear Master Bus Enable (DCAR) */
-	usc_DmaCmd( info, DmaCmd_ResetAllChannels );	/* disable both DMA channels */
-
-	usc_loopback_frame( info );
-
-	/* Channel mode Register (CMR)
-	 *
-	 * <15..14>	00	Tx Sub modes, 00 = 1 Stop Bit
-	 * <13..12>	00	              00 = 16X Clock
-	 * <11..8>	0000	Transmitter mode = Asynchronous
-	 * <7..6>	00	reserved?
-	 * <5..4>	00	Rx Sub modes, 00 = 16X Clock
-	 * <3..0>	0000	Receiver mode = Asynchronous
-	 *
-	 * 0000 0000 0000 0000 = 0x0
-	 */
-
-	RegValue = 0;
-	if ( info->params.stop_bits != 1 )
-		RegValue |= BIT14;
-	usc_OutReg( info, CMR, RegValue );
-
-	
-	/* Receiver mode Register (RMR)
-	 *
-	 * <15..13>	000	encoding = None
-	 * <12..08>	00000	reserved (Sync Only)
-	 * <7..6>   	00	Even parity
-	 * <5>		0	parity disabled
-	 * <4..2>	000	Receive Char Length = 8 bits
-	 * <1..0>	00	Disable Receiver
-	 *
-	 * 0000 0000 0000 0000 = 0x0
-	 */
-
-	RegValue = 0;
-
-	if ( info->params.data_bits != 8 )
-		RegValue |= BIT4+BIT3+BIT2;
-
-	if ( info->params.parity != ASYNC_PARITY_NONE ) {
-		RegValue |= BIT5;
-		if ( info->params.parity != ASYNC_PARITY_ODD )
-			RegValue |= BIT6;
-	}
-
-	usc_OutReg( info, RMR, RegValue );
-
-
-	/* Set IRQ trigger level */
-
-	usc_RCmd( info, RCmd_SelectRicrIntLevel );
-
-	
-	/* Receive Interrupt Control Register (RICR)
-	 *
-	 * <15..8>	?		RxFIFO IRQ Request Level
-	 *
-	 * Note: For async mode the receive FIFO level must be set
-	 * to 0 to avoid the situation where the FIFO contains fewer bytes
-	 * than the trigger level and no more data is expected.
-	 *
-	 * <7>		0		Exited Hunt IA (Interrupt Arm)
-	 * <6>		0		Idle Received IA
-	 * <5>		0		Break/Abort IA
-	 * <4>		0		Rx Bound IA
-	 * <3>		0		Queued status reflects oldest byte in FIFO
-	 * <2>		0		Abort/PE IA
-	 * <1>		0		Rx Overrun IA
-	 * <0>		0		Select TC0 value for readback
-	 *
-	 * 0000 0000 0100 0000 = 0x0000 + (FIFOLEVEL in MSB)
-	 */
-	
-	usc_OutReg( info, RICR, 0x0000 );
-
-	usc_UnlatchRxstatusBits( info, RXSTATUS_ALL );
-	usc_ClearIrqPendingBits( info, RECEIVE_STATUS );
-
-	
-	/* Transmit mode Register (TMR)
-	 *
-	 * <15..13>	000	encoding = None
-	 * <12..08>	00000	reserved (Sync Only)
-	 * <7..6>	00	Transmit parity Even
-	 * <5>		0	Transmit parity Disabled
-	 * <4..2>	000	Tx Char Length = 8 bits
-	 * <1..0>	00	Disable Transmitter
-	 *
-	 * 0000 0000 0000 0000 = 0x0
-	 */
-
-	RegValue = 0;
-
-	if ( info->params.data_bits != 8 )
-		RegValue |= BIT4+BIT3+BIT2;
-
-	if ( info->params.parity != ASYNC_PARITY_NONE ) {
-		RegValue |= BIT5;
-		if ( info->params.parity != ASYNC_PARITY_ODD )
-			RegValue |= BIT6;
-	}
-
-	usc_OutReg( info, TMR, RegValue );
-
-	usc_set_txidle( info );
-
-
-	/* Set IRQ trigger level */
-
-	usc_TCmd( info, TCmd_SelectTicrIntLevel );
-
-	
-	/* Transmit Interrupt Control Register (TICR)
-	 *
-	 * <15..8>	?	Transmit FIFO IRQ Level
-	 * <7>		0	Present IA (Interrupt Arm)
-	 * <6>		1	Idle Sent IA
-	 * <5>		0	Abort Sent IA
-	 * <4>		0	EOF/EOM Sent IA
-	 * <3>		0	CRC Sent IA
-	 * <2>		0	1 = Wait for SW Trigger to Start Frame
-	 * <1>		0	Tx Underrun IA
-	 * <0>		0	TC0 constant on read back
-	 *
-	 *	0000 0000 0100 0000 = 0x0040
-	 */
-
-	usc_OutReg( info, TICR, 0x1f40 );
-
-	usc_UnlatchTxstatusBits( info, TXSTATUS_ALL );
-	usc_ClearIrqPendingBits( info, TRANSMIT_STATUS );
-
-	usc_enable_async_clock( info, info->params.data_rate );
-
-	
-	/* Channel Control/status Register (CCSR)
-	 *
-	 * <15>		X	RCC FIFO Overflow status (RO)
-	 * <14>		X	RCC FIFO Not Empty status (RO)
-	 * <13>		0	1 = Clear RCC FIFO (WO)
-	 * <12>		X	DPLL in Sync status (RO)
-	 * <11>		X	DPLL 2 Missed Clocks status (RO)
-	 * <10>		X	DPLL 1 Missed Clock status (RO)
-	 * <9..8>	00	DPLL Resync on rising and falling edges (RW)
-	 * <7>		X	SDLC Loop On status (RO)
-	 * <6>		X	SDLC Loop Send status (RO)
-	 * <5>		1	Bypass counters for TxClk and RxClk (RW)
-	 * <4..2>   	000	Last Char of SDLC frame has 8 bits (RW)
-	 * <1..0>   	00	reserved
-	 *
-	 *	0000 0000 0010 0000 = 0x0020
-	 */
-	
-	usc_OutReg( info, CCSR, 0x0020 );
-
-	usc_DisableInterrupts( info, TRANSMIT_STATUS + TRANSMIT_DATA +
-			      RECEIVE_DATA + RECEIVE_STATUS );
-
-	usc_ClearIrqPendingBits( info, TRANSMIT_STATUS + TRANSMIT_DATA +
-				RECEIVE_DATA + RECEIVE_STATUS );
-
-	usc_EnableMasterIrqBit( info );
-
-	if (info->bus_type == MGSL_BUS_TYPE_ISA) {
-		/* Enable INTEN (Port 6, Bit12) */
-		/* This connects the IRQ request signal to the ISA bus */
-		usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT13) & ~BIT12));
-	}
-
-	if (info->params.loopback) {
-		info->loopback_bits = 0x300;
-		outw(0x0300, info->io_base + CCAR);
-	}
-
-}	/* end of usc_set_async_mode() */
-
-/* usc_loopback_frame()
- *
- *	Loop back a small (2 byte) dummy SDLC frame.
- *	Interrupts and DMA are NOT used. The purpose of this is to
- *	clear any 'stale' status info left over from running in	async mode.
- *
- *	The 16C32 shows the strange behaviour of marking the 1st
- *	received SDLC frame with a CRC error even when there is no
- *	CRC error. To get around this a small dummy from of 2 bytes
- *	is looped back when switching from async to sync mode.
- *
- * Arguments:		info		pointer to device instance data
- * Return Value:	None
- */
-static void usc_loopback_frame( struct mgsl_struct *info )
-{
-	int i;
-	unsigned long oldmode = info->params.mode;
-
-	info->params.mode = MGSL_MODE_HDLC;
-	
-	usc_DisableMasterIrqBit( info );
-
-	usc_set_sdlc_mode( info );
-	usc_enable_loopback( info, 1 );
-
-	/* Write 16-bit Time Constant for BRG0 */
-	usc_OutReg( info, TC0R, 0 );
-	
-	/* Channel Control Register (CCR)
-	 *
-	 * <15..14>	00	Don't use 32-bit Tx Control Blocks (TCBs)
-	 * <13>		0	Trigger Tx on SW Command Disabled
-	 * <12>		0	Flag Preamble Disabled
-	 * <11..10>	00	Preamble Length = 8-Bits
-	 * <9..8>	01	Preamble Pattern = flags
-	 * <7..6>	10	Don't use 32-bit Rx status Blocks (RSBs)
-	 * <5>		0	Trigger Rx on SW Command Disabled
-	 * <4..0>	0	reserved
-	 *
-	 *	0000 0001 0000 0000 = 0x0100
-	 */
-
-	usc_OutReg( info, CCR, 0x0100 );
-
-	/* SETUP RECEIVER */
-	usc_RTCmd( info, RTCmd_PurgeRxFifo );
-	usc_EnableReceiver(info,ENABLE_UNCONDITIONAL);
-
-	/* SETUP TRANSMITTER */
-	/* Program the Transmit Character Length Register (TCLR) */
-	/* and clear FIFO (TCC is loaded with TCLR on FIFO clear) */
-	usc_OutReg( info, TCLR, 2 );
-	usc_RTCmd( info, RTCmd_PurgeTxFifo );
-
-	/* unlatch Tx status bits, and start transmit channel. */
-	usc_UnlatchTxstatusBits(info,TXSTATUS_ALL);
-	outw(0,info->io_base + DATAREG);
-
-	/* ENABLE TRANSMITTER */
-	usc_TCmd( info, TCmd_SendFrame );
-	usc_EnableTransmitter(info,ENABLE_UNCONDITIONAL);
-							
-	/* WAIT FOR RECEIVE COMPLETE */
-	for (i=0 ; i<1000 ; i++)
-		if (usc_InReg( info, RCSR ) & (BIT8 + BIT4 + BIT3 + BIT1))
-			break;
-
-	/* clear Internal Data loopback mode */
-	usc_enable_loopback(info, 0);
-
-	usc_EnableMasterIrqBit(info);
-
-	info->params.mode = oldmode;
-
-}	/* end of usc_loopback_frame() */
-
-/* usc_set_sync_mode()	Programs the USC for SDLC communications.
- *
- * Arguments:		info	pointer to adapter info structure
- * Return Value:	None
- */
-static void usc_set_sync_mode( struct mgsl_struct *info )
-{
-	usc_loopback_frame( info );
-	usc_set_sdlc_mode( info );
-
-	if (info->bus_type == MGSL_BUS_TYPE_ISA) {
-		/* Enable INTEN (Port 6, Bit12) */
-		/* This connects the IRQ request signal to the ISA bus */
-		usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT13) & ~BIT12));
-	}
-
-	usc_enable_aux_clock(info, info->params.clock_speed);
-
-	if (info->params.loopback)
-		usc_enable_loopback(info,1);
-
-}	/* end of mgsl_set_sync_mode() */
-
-/* usc_set_txidle()	Set the HDLC idle mode for the transmitter.
- *
- * Arguments:		info	pointer to device instance data
- * Return Value:	None
- */
-static void usc_set_txidle( struct mgsl_struct *info )
-{
-	u16 usc_idle_mode = IDLEMODE_FLAGS;
-
-	/* Map API idle mode to USC register bits */
-
-	switch( info->idle_mode ){
-	case HDLC_TXIDLE_FLAGS:			usc_idle_mode = IDLEMODE_FLAGS; break;
-	case HDLC_TXIDLE_ALT_ZEROS_ONES:	usc_idle_mode = IDLEMODE_ALT_ONE_ZERO; break;
-	case HDLC_TXIDLE_ZEROS:			usc_idle_mode = IDLEMODE_ZERO; break;
-	case HDLC_TXIDLE_ONES:			usc_idle_mode = IDLEMODE_ONE; break;
-	case HDLC_TXIDLE_ALT_MARK_SPACE:	usc_idle_mode = IDLEMODE_ALT_MARK_SPACE; break;
-	case HDLC_TXIDLE_SPACE:			usc_idle_mode = IDLEMODE_SPACE; break;
-	case HDLC_TXIDLE_MARK:			usc_idle_mode = IDLEMODE_MARK; break;
-	}
-
-	info->usc_idle_mode = usc_idle_mode;
-	//usc_OutReg(info, TCSR, usc_idle_mode);
-	info->tcsr_value &= ~IDLEMODE_MASK;	/* clear idle mode bits */
-	info->tcsr_value += usc_idle_mode;
-	usc_OutReg(info, TCSR, info->tcsr_value);
-
-	/*
-	 * if SyncLink WAN adapter is running in external sync mode, the
-	 * transmitter has been set to Monosync in order to try to mimic
-	 * a true raw outbound bit stream. Monosync still sends an open/close
-	 * sync char at the start/end of a frame. Try to match those sync
-	 * patterns to the idle mode set here
-	 */
-	if ( info->params.mode == MGSL_MODE_RAW ) {
-		unsigned char syncpat = 0;
-		switch( info->idle_mode ) {
-		case HDLC_TXIDLE_FLAGS:
-			syncpat = 0x7e;
-			break;
-		case HDLC_TXIDLE_ALT_ZEROS_ONES:
-			syncpat = 0x55;
-			break;
-		case HDLC_TXIDLE_ZEROS:
-		case HDLC_TXIDLE_SPACE:
-			syncpat = 0x00;
-			break;
-		case HDLC_TXIDLE_ONES:
-		case HDLC_TXIDLE_MARK:
-			syncpat = 0xff;
-			break;
-		case HDLC_TXIDLE_ALT_MARK_SPACE:
-			syncpat = 0xaa;
-			break;
-		}
-
-		usc_SetTransmitSyncChars(info,syncpat,syncpat);
-	}
-
-}	/* end of usc_set_txidle() */
-
-/* usc_get_serial_signals()
- *
- *	Query the adapter for the state of the V24 status (input) signals.
- *
- * Arguments:		info	pointer to device instance data
- * Return Value:	None
- */
-static void usc_get_serial_signals( struct mgsl_struct *info )
-{
-	u16 status;
-
-	/* clear all serial signals except DTR and RTS */
-	info->serial_signals &= SerialSignal_DTR + SerialSignal_RTS;
-
-	/* Read the Misc Interrupt status Register (MISR) to get */
-	/* the V24 status signals. */
-
-	status = usc_InReg( info, MISR );
-
-	/* set serial signal bits to reflect MISR */
-
-	if ( status & MISCSTATUS_CTS )
-		info->serial_signals |= SerialSignal_CTS;
-
-	if ( status & MISCSTATUS_DCD )
-		info->serial_signals |= SerialSignal_DCD;
-
-	if ( status & MISCSTATUS_RI )
-		info->serial_signals |= SerialSignal_RI;
-
-	if ( status & MISCSTATUS_DSR )
-		info->serial_signals |= SerialSignal_DSR;
-
-}	/* end of usc_get_serial_signals() */
-
-/* usc_set_serial_signals()
- *
- *	Set the state of DTR and RTS based on contents of
- *	serial_signals member of device extension.
- *	
- * Arguments:		info	pointer to device instance data
- * Return Value:	None
- */
-static void usc_set_serial_signals( struct mgsl_struct *info )
-{
-	u16 Control;
-	unsigned char V24Out = info->serial_signals;
-
-	/* get the current value of the Port Control Register (PCR) */
-
-	Control = usc_InReg( info, PCR );
-
-	if ( V24Out & SerialSignal_RTS )
-		Control &= ~(BIT6);
-	else
-		Control |= BIT6;
-
-	if ( V24Out & SerialSignal_DTR )
-		Control &= ~(BIT4);
-	else
-		Control |= BIT4;
-
-	usc_OutReg( info, PCR, Control );
-
-}	/* end of usc_set_serial_signals() */
-
-/* usc_enable_async_clock()
- *
- *	Enable the async clock at the specified frequency.
- *
- * Arguments:		info		pointer to device instance data
- *			data_rate	data rate of clock in bps
- *					0 disables the AUX clock.
- * Return Value:	None
- */
-static void usc_enable_async_clock( struct mgsl_struct *info, u32 data_rate )
-{
-	if ( data_rate )	{
-		/*
-		 * Clock mode Control Register (CMCR)
-		 * 
-		 * <15..14>     00      counter 1 Disabled
-		 * <13..12>     00      counter 0 Disabled
-		 * <11..10>     11      BRG1 Input is TxC Pin
-		 * <9..8>       11      BRG0 Input is TxC Pin
-		 * <7..6>       01      DPLL Input is BRG1 Output
-		 * <5..3>       100     TxCLK comes from BRG0
-		 * <2..0>       100     RxCLK comes from BRG0
-		 *
-		 * 0000 1111 0110 0100 = 0x0f64
-		 */
-		
-		usc_OutReg( info, CMCR, 0x0f64 );
-
-
-		/*
-		 * Write 16-bit Time Constant for BRG0
-		 * Time Constant = (ClkSpeed / data_rate) - 1
-		 * ClkSpeed = 921600 (ISA), 691200 (PCI)
-		 */
-
-		if ( info->bus_type == MGSL_BUS_TYPE_PCI )
-			usc_OutReg( info, TC0R, (u16)((691200/data_rate) - 1) );
-		else
-			usc_OutReg( info, TC0R, (u16)((921600/data_rate) - 1) );
-
-		
-		/*
-		 * Hardware Configuration Register (HCR)
-		 * Clear Bit 1, BRG0 mode = Continuous
-		 * Set Bit 0 to enable BRG0.
-		 */
-
-		usc_OutReg( info, HCR,
-			    (u16)((usc_InReg( info, HCR ) & ~BIT1) | BIT0) );
-
-
-		/* Input/Output Control Reg, <2..0> = 100, Drive RxC pin with BRG0 */
-
-		usc_OutReg( info, IOCR,
-			    (u16)((usc_InReg(info, IOCR) & 0xfff8) | 0x0004) );
-	} else {
-		/* data rate == 0 so turn off BRG0 */
-		usc_OutReg( info, HCR, (u16)(usc_InReg( info, HCR ) & ~BIT0) );
-	}
-
-}	/* end of usc_enable_async_clock() */
-
-/*
- * Buffer Structures:
- *
- * Normal memory access uses virtual addresses that can make discontiguous
- * physical memory pages appear to be contiguous in the virtual address
- * space (the processors memory mapping handles the conversions).
- *
- * DMA transfers require physically contiguous memory. This is because
- * the DMA system controller and DMA bus masters deal with memory using
- * only physical addresses.
- *
- * This causes a problem under Windows NT when large DMA buffers are
- * needed. Fragmentation of the nonpaged pool prevents allocations of
- * physically contiguous buffers larger than the PAGE_SIZE.
- *
- * However the 16C32 supports Bus Master Scatter/Gather DMA which
- * allows DMA transfers to physically discontiguous buffers. Information
- * about each data transfer buffer is contained in a memory structure
- * called a 'buffer entry'. A list of buffer entries is maintained
- * to track and control the use of the data transfer buffers.
- *
- * To support this strategy we will allocate sufficient PAGE_SIZE
- * contiguous memory buffers to allow for the total required buffer
- * space.
- *
- * The 16C32 accesses the list of buffer entries using Bus Master
- * DMA. Control information is read from the buffer entries by the
- * 16C32 to control data transfers. status information is written to
- * the buffer entries by the 16C32 to indicate the status of completed
- * transfers.
- *
- * The CPU writes control information to the buffer entries to control
- * the 16C32 and reads status information from the buffer entries to
- * determine information about received and transmitted frames.
- *
- * Because the CPU and 16C32 (adapter) both need simultaneous access
- * to the buffer entries, the buffer entry memory is allocated with
- * HalAllocateCommonBuffer(). This restricts the size of the buffer
- * entry list to PAGE_SIZE.
- *
- * The actual data buffers on the other hand will only be accessed
- * by the CPU or the adapter but not by both simultaneously. This allows
- * Scatter/Gather packet based DMA procedures for using physically
- * discontiguous pages.
- */
-
-/*
- * mgsl_reset_tx_dma_buffers()
- *
- * 	Set the count for all transmit buffers to 0 to indicate the
- * 	buffer is available for use and set the current buffer to the
- * 	first buffer. This effectively makes all buffers free and
- * 	discards any data in buffers.
- *
- * Arguments:		info	pointer to device instance data
- * Return Value:	None
- */
-static void mgsl_reset_tx_dma_buffers( struct mgsl_struct *info )
-{
-	unsigned int i;
-
-	for ( i = 0; i < info->tx_buffer_count; i++ ) {
-		*((unsigned long *)&(info->tx_buffer_list[i].count)) = 0;
-	}
-
-	info->current_tx_buffer = 0;
-	info->start_tx_dma_buffer = 0;
-	info->tx_dma_buffers_used = 0;
-
-	info->get_tx_holding_index = 0;
-	info->put_tx_holding_index = 0;
-	info->tx_holding_count = 0;
-
-}	/* end of mgsl_reset_tx_dma_buffers() */
-
-/*
- * num_free_tx_dma_buffers()
- *
- * 	returns the number of free tx dma buffers available
- *
- * Arguments:		info	pointer to device instance data
- * Return Value:	number of free tx dma buffers
- */
-static int num_free_tx_dma_buffers(struct mgsl_struct *info)
-{
-	return info->tx_buffer_count - info->tx_dma_buffers_used;
-}
-
-/*
- * mgsl_reset_rx_dma_buffers()
- * 
- * 	Set the count for all receive buffers to DMABUFFERSIZE
- * 	and set the current buffer to the first buffer. This effectively
- * 	makes all buffers free and discards any data in buffers.
- * 
- * Arguments:		info	pointer to device instance data
- * Return Value:	None
- */
-static void mgsl_reset_rx_dma_buffers( struct mgsl_struct *info )
-{
-	unsigned int i;
-
-	for ( i = 0; i < info->rx_buffer_count; i++ ) {
-		*((unsigned long *)&(info->rx_buffer_list[i].count)) = DMABUFFERSIZE;
-//		info->rx_buffer_list[i].count = DMABUFFERSIZE;
-//		info->rx_buffer_list[i].status = 0;
-	}
-
-	info->current_rx_buffer = 0;
-
-}	/* end of mgsl_reset_rx_dma_buffers() */
-
-/*
- * mgsl_free_rx_frame_buffers()
- * 
- * 	Free the receive buffers used by a received SDLC
- * 	frame such that the buffers can be reused.
- * 
- * Arguments:
- * 
- * 	info			pointer to device instance data
- * 	StartIndex		index of 1st receive buffer of frame
- * 	EndIndex		index of last receive buffer of frame
- * 
- * Return Value:	None
- */
-static void mgsl_free_rx_frame_buffers( struct mgsl_struct *info, unsigned int StartIndex, unsigned int EndIndex )
-{
-	bool Done = false;
-	DMABUFFERENTRY *pBufEntry;
-	unsigned int Index;
-
-	/* Starting with 1st buffer entry of the frame clear the status */
-	/* field and set the count field to DMA Buffer Size. */
-
-	Index = StartIndex;
-
-	while( !Done ) {
-		pBufEntry = &(info->rx_buffer_list[Index]);
-
-		if ( Index == EndIndex ) {
-			/* This is the last buffer of the frame! */
-			Done = true;
-		}
-
-		/* reset current buffer for reuse */
-//		pBufEntry->status = 0;
-//		pBufEntry->count = DMABUFFERSIZE;
-		*((unsigned long *)&(pBufEntry->count)) = DMABUFFERSIZE;
-
-		/* advance to next buffer entry in linked list */
-		Index++;
-		if ( Index == info->rx_buffer_count )
-			Index = 0;
-	}
-
-	/* set current buffer to next buffer after last buffer of frame */
-	info->current_rx_buffer = Index;
-
-}	/* end of free_rx_frame_buffers() */
-
-/* mgsl_get_rx_frame()
- * 
- * 	This function attempts to return a received SDLC frame from the
- * 	receive DMA buffers. Only frames received without errors are returned.
- *
- * Arguments:	 	info	pointer to device extension
- * Return Value:	true if frame returned, otherwise false
- */
-static bool mgsl_get_rx_frame(struct mgsl_struct *info)
-{
-	unsigned int StartIndex, EndIndex;	/* index of 1st and last buffers of Rx frame */
-	unsigned short status;
-	DMABUFFERENTRY *pBufEntry;
-	unsigned int framesize = 0;
-	bool ReturnCode = false;
-	unsigned long flags;
-	struct tty_struct *tty = info->port.tty;
-	bool return_frame = false;
-	
-	/*
-	 * current_rx_buffer points to the 1st buffer of the next available
-	 * receive frame. To find the last buffer of the frame look for
-	 * a non-zero status field in the buffer entries. (The status
-	 * field is set by the 16C32 after completing a receive frame.
-	 */
-
-	StartIndex = EndIndex = info->current_rx_buffer;
-
-	while( !info->rx_buffer_list[EndIndex].status ) {
-		/*
-		 * If the count field of the buffer entry is non-zero then
-		 * this buffer has not been used. (The 16C32 clears the count
-		 * field when it starts using the buffer.) If an unused buffer
-		 * is encountered then there are no frames available.
-		 */
-
-		if ( info->rx_buffer_list[EndIndex].count )
-			goto Cleanup;
-
-		/* advance to next buffer entry in linked list */
-		EndIndex++;
-		if ( EndIndex == info->rx_buffer_count )
-			EndIndex = 0;
-
-		/* if entire list searched then no frame available */
-		if ( EndIndex == StartIndex ) {
-			/* If this occurs then something bad happened,
-			 * all buffers have been 'used' but none mark
-			 * the end of a frame. Reset buffers and receiver.
-			 */
-
-			if ( info->rx_enabled ){
-				spin_lock_irqsave(&info->irq_spinlock,flags);
-				usc_start_receiver(info);
-				spin_unlock_irqrestore(&info->irq_spinlock,flags);
-			}
-			goto Cleanup;
-		}
-	}
-
-
-	/* check status of receive frame */
-	
-	status = info->rx_buffer_list[EndIndex].status;
-
-	if ( status & (RXSTATUS_SHORT_FRAME + RXSTATUS_OVERRUN +
-			RXSTATUS_CRC_ERROR + RXSTATUS_ABORT) ) {
-		if ( status & RXSTATUS_SHORT_FRAME )
-			info->icount.rxshort++;
-		else if ( status & RXSTATUS_ABORT )
-			info->icount.rxabort++;
-		else if ( status & RXSTATUS_OVERRUN )
-			info->icount.rxover++;
-		else {
-			info->icount.rxcrc++;
-			if ( info->params.crc_type & HDLC_CRC_RETURN_EX )
-				return_frame = true;
-		}
-		framesize = 0;
-#if SYNCLINK_GENERIC_HDLC
-		{
-			info->netdev->stats.rx_errors++;
-			info->netdev->stats.rx_frame_errors++;
-		}
-#endif
-	} else
-		return_frame = true;
-
-	if ( return_frame ) {
-		/* receive frame has no errors, get frame size.
-		 * The frame size is the starting value of the RCC (which was
-		 * set to 0xffff) minus the ending value of the RCC (decremented
-		 * once for each receive character) minus 2 for the 16-bit CRC.
-		 */
-
-		framesize = RCLRVALUE - info->rx_buffer_list[EndIndex].rcc;
-
-		/* adjust frame size for CRC if any */
-		if ( info->params.crc_type == HDLC_CRC_16_CCITT )
-			framesize -= 2;
-		else if ( info->params.crc_type == HDLC_CRC_32_CCITT )
-			framesize -= 4;		
-	}
-
-	if ( debug_level >= DEBUG_LEVEL_BH )
-		printk("%s(%d):mgsl_get_rx_frame(%s) status=%04X size=%d\n",
-			__FILE__,__LINE__,info->device_name,status,framesize);
-			
-	if ( debug_level >= DEBUG_LEVEL_DATA )
-		mgsl_trace_block(info,info->rx_buffer_list[StartIndex].virt_addr,
-			min_t(int, framesize, DMABUFFERSIZE),0);
-		
-	if (framesize) {
-		if ( ( (info->params.crc_type & HDLC_CRC_RETURN_EX) &&
-				((framesize+1) > info->max_frame_size) ) ||
-			(framesize > info->max_frame_size) )
-			info->icount.rxlong++;
-		else {
-			/* copy dma buffer(s) to contiguous intermediate buffer */
-			int copy_count = framesize;
-			int index = StartIndex;
-			unsigned char *ptmp = info->intermediate_rxbuffer;
-
-			if ( !(status & RXSTATUS_CRC_ERROR))
-			info->icount.rxok++;
-			
-			while(copy_count) {
-				int partial_count;
-				if ( copy_count > DMABUFFERSIZE )
-					partial_count = DMABUFFERSIZE;
-				else
-					partial_count = copy_count;
-			
-				pBufEntry = &(info->rx_buffer_list[index]);
-				memcpy( ptmp, pBufEntry->virt_addr, partial_count );
-				ptmp += partial_count;
-				copy_count -= partial_count;
-				
-				if ( ++index == info->rx_buffer_count )
-					index = 0;
-			}
-
-			if ( info->params.crc_type & HDLC_CRC_RETURN_EX ) {
-				++framesize;
-				*ptmp = (status & RXSTATUS_CRC_ERROR ?
-						RX_CRC_ERROR :
-						RX_OK);
-
-				if ( debug_level >= DEBUG_LEVEL_DATA )
-					printk("%s(%d):mgsl_get_rx_frame(%s) rx frame status=%d\n",
-						__FILE__,__LINE__,info->device_name,
-						*ptmp);
-			}
-
-#if SYNCLINK_GENERIC_HDLC
-			if (info->netcount)
-				hdlcdev_rx(info,info->intermediate_rxbuffer,framesize);
-			else
-#endif
-				ldisc_receive_buf(tty, info->intermediate_rxbuffer, info->flag_buf, framesize);
-		}
-	}
-	/* Free the buffers used by this frame. */
-	mgsl_free_rx_frame_buffers( info, StartIndex, EndIndex );
-
-	ReturnCode = true;
-
-Cleanup:
-
-	if ( info->rx_enabled && info->rx_overflow ) {
-		/* The receiver needs to restarted because of 
-		 * a receive overflow (buffer or FIFO). If the 
-		 * receive buffers are now empty, then restart receiver.
-		 */
-
-		if ( !info->rx_buffer_list[EndIndex].status &&
-			info->rx_buffer_list[EndIndex].count ) {
-			spin_lock_irqsave(&info->irq_spinlock,flags);
-			usc_start_receiver(info);
-			spin_unlock_irqrestore(&info->irq_spinlock,flags);
-		}
-	}
-
-	return ReturnCode;
-
-}	/* end of mgsl_get_rx_frame() */
-
-/* mgsl_get_raw_rx_frame()
- *
- *     	This function attempts to return a received frame from the
- *	receive DMA buffers when running in external loop mode. In this mode,
- *	we will return at most one DMABUFFERSIZE frame to the application.
- *	The USC receiver is triggering off of DCD going active to start a new
- *	frame, and DCD going inactive to terminate the frame (similar to
- *	processing a closing flag character).
- *
- *	In this routine, we will return DMABUFFERSIZE "chunks" at a time.
- *	If DCD goes inactive, the last Rx DMA Buffer will have a non-zero
- * 	status field and the RCC field will indicate the length of the
- *	entire received frame. We take this RCC field and get the modulus
- *	of RCC and DMABUFFERSIZE to determine if number of bytes in the
- *	last Rx DMA buffer and return that last portion of the frame.
- *
- * Arguments:	 	info	pointer to device extension
- * Return Value:	true if frame returned, otherwise false
- */
-static bool mgsl_get_raw_rx_frame(struct mgsl_struct *info)
-{
-	unsigned int CurrentIndex, NextIndex;
-	unsigned short status;
-	DMABUFFERENTRY *pBufEntry;
-	unsigned int framesize = 0;
-	bool ReturnCode = false;
-	unsigned long flags;
-	struct tty_struct *tty = info->port.tty;
-
-	/*
- 	 * current_rx_buffer points to the 1st buffer of the next available
-	 * receive frame. The status field is set by the 16C32 after
-	 * completing a receive frame. If the status field of this buffer
-	 * is zero, either the USC is still filling this buffer or this
-	 * is one of a series of buffers making up a received frame.
-	 *
-	 * If the count field of this buffer is zero, the USC is either
-	 * using this buffer or has used this buffer. Look at the count
-	 * field of the next buffer. If that next buffer's count is
-	 * non-zero, the USC is still actively using the current buffer.
-	 * Otherwise, if the next buffer's count field is zero, the
-	 * current buffer is complete and the USC is using the next
-	 * buffer.
-	 */
-	CurrentIndex = NextIndex = info->current_rx_buffer;
-	++NextIndex;
-	if ( NextIndex == info->rx_buffer_count )
-		NextIndex = 0;
-
-	if ( info->rx_buffer_list[CurrentIndex].status != 0 ||
-		(info->rx_buffer_list[CurrentIndex].count == 0 &&
-			info->rx_buffer_list[NextIndex].count == 0)) {
-		/*
-	 	 * Either the status field of this dma buffer is non-zero
-		 * (indicating the last buffer of a receive frame) or the next
-	 	 * buffer is marked as in use -- implying this buffer is complete
-		 * and an intermediate buffer for this received frame.
-	 	 */
-
-		status = info->rx_buffer_list[CurrentIndex].status;
-
-		if ( status & (RXSTATUS_SHORT_FRAME + RXSTATUS_OVERRUN +
-				RXSTATUS_CRC_ERROR + RXSTATUS_ABORT) ) {
-			if ( status & RXSTATUS_SHORT_FRAME )
-				info->icount.rxshort++;
-			else if ( status & RXSTATUS_ABORT )
-				info->icount.rxabort++;
-			else if ( status & RXSTATUS_OVERRUN )
-				info->icount.rxover++;
-			else
-				info->icount.rxcrc++;
-			framesize = 0;
-		} else {
-			/*
-			 * A receive frame is available, get frame size and status.
-			 *
-			 * The frame size is the starting value of the RCC (which was
-			 * set to 0xffff) minus the ending value of the RCC (decremented
-			 * once for each receive character) minus 2 or 4 for the 16-bit
-			 * or 32-bit CRC.
-			 *
-			 * If the status field is zero, this is an intermediate buffer.
-			 * It's size is 4K.
-			 *
-			 * If the DMA Buffer Entry's Status field is non-zero, the
-			 * receive operation completed normally (ie: DCD dropped). The
-			 * RCC field is valid and holds the received frame size.
-			 * It is possible that the RCC field will be zero on a DMA buffer
-			 * entry with a non-zero status. This can occur if the total
-			 * frame size (number of bytes between the time DCD goes active
-			 * to the time DCD goes inactive) exceeds 65535 bytes. In this
-			 * case the 16C32 has underrun on the RCC count and appears to
-			 * stop updating this counter to let us know the actual received
-			 * frame size. If this happens (non-zero status and zero RCC),
-			 * simply return the entire RxDMA Buffer
-			 */
-			if ( status ) {
-				/*
-				 * In the event that the final RxDMA Buffer is
-				 * terminated with a non-zero status and the RCC
-				 * field is zero, we interpret this as the RCC
-				 * having underflowed (received frame > 65535 bytes).
-				 *
-				 * Signal the event to the user by passing back
-				 * a status of RxStatus_CrcError returning the full
-				 * buffer and let the app figure out what data is
-				 * actually valid
-				 */
-				if ( info->rx_buffer_list[CurrentIndex].rcc )
-					framesize = RCLRVALUE - info->rx_buffer_list[CurrentIndex].rcc;
-				else
-					framesize = DMABUFFERSIZE;
-			}
-			else
-				framesize = DMABUFFERSIZE;
-		}
-
-		if ( framesize > DMABUFFERSIZE ) {
-			/*
-			 * if running in raw sync mode, ISR handler for
-			 * End Of Buffer events terminates all buffers at 4K.
-			 * If this frame size is said to be >4K, get the
-			 * actual number of bytes of the frame in this buffer.
-			 */
-			framesize = framesize % DMABUFFERSIZE;
-		}
-
-
-		if ( debug_level >= DEBUG_LEVEL_BH )
-			printk("%s(%d):mgsl_get_raw_rx_frame(%s) status=%04X size=%d\n",
-				__FILE__,__LINE__,info->device_name,status,framesize);
-
-		if ( debug_level >= DEBUG_LEVEL_DATA )
-			mgsl_trace_block(info,info->rx_buffer_list[CurrentIndex].virt_addr,
-				min_t(int, framesize, DMABUFFERSIZE),0);
-
-		if (framesize) {
-			/* copy dma buffer(s) to contiguous intermediate buffer */
-			/* NOTE: we never copy more than DMABUFFERSIZE bytes	*/
-
-			pBufEntry = &(info->rx_buffer_list[CurrentIndex]);
-			memcpy( info->intermediate_rxbuffer, pBufEntry->virt_addr, framesize);
-			info->icount.rxok++;
-
-			ldisc_receive_buf(tty, info->intermediate_rxbuffer, info->flag_buf, framesize);
-		}
-
-		/* Free the buffers used by this frame. */
-		mgsl_free_rx_frame_buffers( info, CurrentIndex, CurrentIndex );
-
-		ReturnCode = true;
-	}
-
-
-	if ( info->rx_enabled && info->rx_overflow ) {
-		/* The receiver needs to restarted because of
-		 * a receive overflow (buffer or FIFO). If the
-		 * receive buffers are now empty, then restart receiver.
-		 */
-
-		if ( !info->rx_buffer_list[CurrentIndex].status &&
-			info->rx_buffer_list[CurrentIndex].count ) {
-			spin_lock_irqsave(&info->irq_spinlock,flags);
-			usc_start_receiver(info);
-			spin_unlock_irqrestore(&info->irq_spinlock,flags);
-		}
-	}
-
-	return ReturnCode;
-
-}	/* end of mgsl_get_raw_rx_frame() */
-
-/* mgsl_load_tx_dma_buffer()
- * 
- * 	Load the transmit DMA buffer with the specified data.
- * 
- * Arguments:
- * 
- * 	info		pointer to device extension
- * 	Buffer		pointer to buffer containing frame to load
- * 	BufferSize	size in bytes of frame in Buffer
- * 
- * Return Value: 	None
- */
-static void mgsl_load_tx_dma_buffer(struct mgsl_struct *info,
-		const char *Buffer, unsigned int BufferSize)
-{
-	unsigned short Copycount;
-	unsigned int i = 0;
-	DMABUFFERENTRY *pBufEntry;
-	
-	if ( debug_level >= DEBUG_LEVEL_DATA )
-		mgsl_trace_block(info,Buffer, min_t(int, BufferSize, DMABUFFERSIZE), 1);
-
-	if (info->params.flags & HDLC_FLAG_HDLC_LOOPMODE) {
-		/* set CMR:13 to start transmit when
-		 * next GoAhead (abort) is received
-		 */
-	 	info->cmr_value |= BIT13;			  
-	}
-		
-	/* begin loading the frame in the next available tx dma
-	 * buffer, remember it's starting location for setting
-	 * up tx dma operation
-	 */
-	i = info->current_tx_buffer;
-	info->start_tx_dma_buffer = i;
-
-	/* Setup the status and RCC (Frame Size) fields of the 1st */
-	/* buffer entry in the transmit DMA buffer list. */
-
-	info->tx_buffer_list[i].status = info->cmr_value & 0xf000;
-	info->tx_buffer_list[i].rcc    = BufferSize;
-	info->tx_buffer_list[i].count  = BufferSize;
-
-	/* Copy frame data from 1st source buffer to the DMA buffers. */
-	/* The frame data may span multiple DMA buffers. */
-
-	while( BufferSize ){
-		/* Get a pointer to next DMA buffer entry. */
-		pBufEntry = &info->tx_buffer_list[i++];
-			
-		if ( i == info->tx_buffer_count )
-			i=0;
-
-		/* Calculate the number of bytes that can be copied from */
-		/* the source buffer to this DMA buffer. */
-		if ( BufferSize > DMABUFFERSIZE )
-			Copycount = DMABUFFERSIZE;
-		else
-			Copycount = BufferSize;
-
-		/* Actually copy data from source buffer to DMA buffer. */
-		/* Also set the data count for this individual DMA buffer. */
-		if ( info->bus_type == MGSL_BUS_TYPE_PCI )
-			mgsl_load_pci_memory(pBufEntry->virt_addr, Buffer,Copycount);
-		else
-			memcpy(pBufEntry->virt_addr, Buffer, Copycount);
-
-		pBufEntry->count = Copycount;
-
-		/* Advance source pointer and reduce remaining data count. */
-		Buffer += Copycount;
-		BufferSize -= Copycount;
-
-		++info->tx_dma_buffers_used;
-	}
-
-	/* remember next available tx dma buffer */
-	info->current_tx_buffer = i;
-
-}	/* end of mgsl_load_tx_dma_buffer() */
-
-/*
- * mgsl_register_test()
- * 
- * 	Performs a register test of the 16C32.
- * 	
- * Arguments:		info	pointer to device instance data
- * Return Value:		true if test passed, otherwise false
- */
-static bool mgsl_register_test( struct mgsl_struct *info )
-{
-	static unsigned short BitPatterns[] =
-		{ 0x0000, 0xffff, 0xaaaa, 0x5555, 0x1234, 0x6969, 0x9696, 0x0f0f };
-	static unsigned int Patterncount = ARRAY_SIZE(BitPatterns);
-	unsigned int i;
-	bool rc = true;
-	unsigned long flags;
-
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-	usc_reset(info);
-
-	/* Verify the reset state of some registers. */
-
-	if ( (usc_InReg( info, SICR ) != 0) ||
-		  (usc_InReg( info, IVR  ) != 0) ||
-		  (usc_InDmaReg( info, DIVR ) != 0) ){
-		rc = false;
-	}
-
-	if ( rc ){
-		/* Write bit patterns to various registers but do it out of */
-		/* sync, then read back and verify values. */
-
-		for ( i = 0 ; i < Patterncount ; i++ ) {
-			usc_OutReg( info, TC0R, BitPatterns[i] );
-			usc_OutReg( info, TC1R, BitPatterns[(i+1)%Patterncount] );
-			usc_OutReg( info, TCLR, BitPatterns[(i+2)%Patterncount] );
-			usc_OutReg( info, RCLR, BitPatterns[(i+3)%Patterncount] );
-			usc_OutReg( info, RSR,  BitPatterns[(i+4)%Patterncount] );
-			usc_OutDmaReg( info, TBCR, BitPatterns[(i+5)%Patterncount] );
-
-			if ( (usc_InReg( info, TC0R ) != BitPatterns[i]) ||
-				  (usc_InReg( info, TC1R ) != BitPatterns[(i+1)%Patterncount]) ||
-				  (usc_InReg( info, TCLR ) != BitPatterns[(i+2)%Patterncount]) ||
-				  (usc_InReg( info, RCLR ) != BitPatterns[(i+3)%Patterncount]) ||
-				  (usc_InReg( info, RSR )  != BitPatterns[(i+4)%Patterncount]) ||
-				  (usc_InDmaReg( info, TBCR ) != BitPatterns[(i+5)%Patterncount]) ){
-				rc = false;
-				break;
-			}
-		}
-	}
-
-	usc_reset(info);
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-	return rc;
-
-}	/* end of mgsl_register_test() */
-
-/* mgsl_irq_test() 	Perform interrupt test of the 16C32.
- * 
- * Arguments:		info	pointer to device instance data
- * Return Value:	true if test passed, otherwise false
- */
-static bool mgsl_irq_test( struct mgsl_struct *info )
-{
-	unsigned long EndTime;
-	unsigned long flags;
-
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-	usc_reset(info);
-
-	/*
-	 * Setup 16C32 to interrupt on TxC pin (14MHz clock) transition. 
-	 * The ISR sets irq_occurred to true.
-	 */
-
-	info->irq_occurred = false;
-
-	/* Enable INTEN gate for ISA adapter (Port 6, Bit12) */
-	/* Enable INTEN (Port 6, Bit12) */
-	/* This connects the IRQ request signal to the ISA bus */
-	/* on the ISA adapter. This has no effect for the PCI adapter */
-	usc_OutReg( info, PCR, (unsigned short)((usc_InReg(info, PCR) | BIT13) & ~BIT12) );
-
-	usc_EnableMasterIrqBit(info);
-	usc_EnableInterrupts(info, IO_PIN);
-	usc_ClearIrqPendingBits(info, IO_PIN);
-	
-	usc_UnlatchIostatusBits(info, MISCSTATUS_TXC_LATCHED);
-	usc_EnableStatusIrqs(info, SICR_TXC_ACTIVE + SICR_TXC_INACTIVE);
-
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-	EndTime=100;
-	while( EndTime-- && !info->irq_occurred ) {
-		msleep_interruptible(10);
-	}
-	
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-	usc_reset(info);
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-	
-	return info->irq_occurred;
-
-}	/* end of mgsl_irq_test() */
-
-/* mgsl_dma_test()
- * 
- * 	Perform a DMA test of the 16C32. A small frame is
- * 	transmitted via DMA from a transmit buffer to a receive buffer
- * 	using single buffer DMA mode.
- * 	
- * Arguments:		info	pointer to device instance data
- * Return Value:	true if test passed, otherwise false
- */
-static bool mgsl_dma_test( struct mgsl_struct *info )
-{
-	unsigned short FifoLevel;
-	unsigned long phys_addr;
-	unsigned int FrameSize;
-	unsigned int i;
-	char *TmpPtr;
-	bool rc = true;
-	unsigned short status=0;
-	unsigned long EndTime;
-	unsigned long flags;
-	MGSL_PARAMS tmp_params;
-
-	/* save current port options */
-	memcpy(&tmp_params,&info->params,sizeof(MGSL_PARAMS));
-	/* load default port options */
-	memcpy(&info->params,&default_params,sizeof(MGSL_PARAMS));
-	
-#define TESTFRAMESIZE 40
-
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-	
-	/* setup 16C32 for SDLC DMA transfer mode */
-
-	usc_reset(info);
-	usc_set_sdlc_mode(info);
-	usc_enable_loopback(info,1);
-	
-	/* Reprogram the RDMR so that the 16C32 does NOT clear the count
-	 * field of the buffer entry after fetching buffer address. This
-	 * way we can detect a DMA failure for a DMA read (which should be
-	 * non-destructive to system memory) before we try and write to
-	 * memory (where a failure could corrupt system memory).
-	 */
-
-	/* Receive DMA mode Register (RDMR)
-	 * 
-	 * <15..14>	11	DMA mode = Linked List Buffer mode
-	 * <13>		1	RSBinA/L = store Rx status Block in List entry
-	 * <12>		0	1 = Clear count of List Entry after fetching
-	 * <11..10>	00	Address mode = Increment
-	 * <9>		1	Terminate Buffer on RxBound
-	 * <8>		0	Bus Width = 16bits
-	 * <7..0>		?	status Bits (write as 0s)
-	 * 
-	 * 1110 0010 0000 0000 = 0xe200
-	 */
-
-	usc_OutDmaReg( info, RDMR, 0xe200 );
-	
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-
-	/* SETUP TRANSMIT AND RECEIVE DMA BUFFERS */
-
-	FrameSize = TESTFRAMESIZE;
-
-	/* setup 1st transmit buffer entry: */
-	/* with frame size and transmit control word */
-
-	info->tx_buffer_list[0].count  = FrameSize;
-	info->tx_buffer_list[0].rcc    = FrameSize;
-	info->tx_buffer_list[0].status = 0x4000;
-
-	/* build a transmit frame in 1st transmit DMA buffer */
-
-	TmpPtr = info->tx_buffer_list[0].virt_addr;
-	for (i = 0; i < FrameSize; i++ )
-		*TmpPtr++ = i;
-
-	/* setup 1st receive buffer entry: */
-	/* clear status, set max receive buffer size */
-
-	info->rx_buffer_list[0].status = 0;
-	info->rx_buffer_list[0].count = FrameSize + 4;
-
-	/* zero out the 1st receive buffer */
-
-	memset( info->rx_buffer_list[0].virt_addr, 0, FrameSize + 4 );
-
-	/* Set count field of next buffer entries to prevent */
-	/* 16C32 from using buffers after the 1st one. */
-
-	info->tx_buffer_list[1].count = 0;
-	info->rx_buffer_list[1].count = 0;
-	
-
-	/***************************/
-	/* Program 16C32 receiver. */
-	/***************************/
-	
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-
-	/* setup DMA transfers */
-	usc_RTCmd( info, RTCmd_PurgeRxFifo );
-
-	/* program 16C32 receiver with physical address of 1st DMA buffer entry */
-	phys_addr = info->rx_buffer_list[0].phys_entry;
-	usc_OutDmaReg( info, NRARL, (unsigned short)phys_addr );
-	usc_OutDmaReg( info, NRARU, (unsigned short)(phys_addr >> 16) );
-
-	/* Clear the Rx DMA status bits (read RDMR) and start channel */
-	usc_InDmaReg( info, RDMR );
-	usc_DmaCmd( info, DmaCmd_InitRxChannel );
-
-	/* Enable Receiver (RMR <1..0> = 10) */
-	usc_OutReg( info, RMR, (unsigned short)((usc_InReg(info, RMR) & 0xfffc) | 0x0002) );
-	
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-
-	/*************************************************************/
-	/* WAIT FOR RECEIVER TO DMA ALL PARAMETERS FROM BUFFER ENTRY */
-	/*************************************************************/
-
-	/* Wait 100ms for interrupt. */
-	EndTime = jiffies + msecs_to_jiffies(100);
-
-	for(;;) {
-		if (time_after(jiffies, EndTime)) {
-			rc = false;
-			break;
-		}
-
-		spin_lock_irqsave(&info->irq_spinlock,flags);
-		status = usc_InDmaReg( info, RDMR );
-		spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-		if ( !(status & BIT4) && (status & BIT5) ) {
-			/* INITG (BIT 4) is inactive (no entry read in progress) AND */
-			/* BUSY  (BIT 5) is active (channel still active). */
-			/* This means the buffer entry read has completed. */
-			break;
-		}
-	}
-
-
-	/******************************/
-	/* Program 16C32 transmitter. */
-	/******************************/
-	
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-
-	/* Program the Transmit Character Length Register (TCLR) */
-	/* and clear FIFO (TCC is loaded with TCLR on FIFO clear) */
-
-	usc_OutReg( info, TCLR, (unsigned short)info->tx_buffer_list[0].count );
-	usc_RTCmd( info, RTCmd_PurgeTxFifo );
-
-	/* Program the address of the 1st DMA Buffer Entry in linked list */
-
-	phys_addr = info->tx_buffer_list[0].phys_entry;
-	usc_OutDmaReg( info, NTARL, (unsigned short)phys_addr );
-	usc_OutDmaReg( info, NTARU, (unsigned short)(phys_addr >> 16) );
-
-	/* unlatch Tx status bits, and start transmit channel. */
-
-	usc_OutReg( info, TCSR, (unsigned short)(( usc_InReg(info, TCSR) & 0x0f00) | 0xfa) );
-	usc_DmaCmd( info, DmaCmd_InitTxChannel );
-
-	/* wait for DMA controller to fill transmit FIFO */
-
-	usc_TCmd( info, TCmd_SelectTicrTxFifostatus );
-	
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-
-	/**********************************/
-	/* WAIT FOR TRANSMIT FIFO TO FILL */
-	/**********************************/
-	
-	/* Wait 100ms */
-	EndTime = jiffies + msecs_to_jiffies(100);
-
-	for(;;) {
-		if (time_after(jiffies, EndTime)) {
-			rc = false;
-			break;
-		}
-
-		spin_lock_irqsave(&info->irq_spinlock,flags);
-		FifoLevel = usc_InReg(info, TICR) >> 8;
-		spin_unlock_irqrestore(&info->irq_spinlock,flags);
-			
-		if ( FifoLevel < 16 )
-			break;
-		else
-			if ( FrameSize < 32 ) {
-				/* This frame is smaller than the entire transmit FIFO */
-				/* so wait for the entire frame to be loaded. */
-				if ( FifoLevel <= (32 - FrameSize) )
-					break;
-			}
-	}
-
-
-	if ( rc )
-	{
-		/* Enable 16C32 transmitter. */
-
-		spin_lock_irqsave(&info->irq_spinlock,flags);
-		
-		/* Transmit mode Register (TMR), <1..0> = 10, Enable Transmitter */
-		usc_TCmd( info, TCmd_SendFrame );
-		usc_OutReg( info, TMR, (unsigned short)((usc_InReg(info, TMR) & 0xfffc) | 0x0002) );
-		
-		spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-						
-		/******************************/
-		/* WAIT FOR TRANSMIT COMPLETE */
-		/******************************/
-
-		/* Wait 100ms */
-		EndTime = jiffies + msecs_to_jiffies(100);
-
-		/* While timer not expired wait for transmit complete */
-
-		spin_lock_irqsave(&info->irq_spinlock,flags);
-		status = usc_InReg( info, TCSR );
-		spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-		while ( !(status & (BIT6+BIT5+BIT4+BIT2+BIT1)) ) {
-			if (time_after(jiffies, EndTime)) {
-				rc = false;
-				break;
-			}
-
-			spin_lock_irqsave(&info->irq_spinlock,flags);
-			status = usc_InReg( info, TCSR );
-			spin_unlock_irqrestore(&info->irq_spinlock,flags);
-		}
-	}
-
-
-	if ( rc ){
-		/* CHECK FOR TRANSMIT ERRORS */
-		if ( status & (BIT5 + BIT1) ) 
-			rc = false;
-	}
-
-	if ( rc ) {
-		/* WAIT FOR RECEIVE COMPLETE */
-
-		/* Wait 100ms */
-		EndTime = jiffies + msecs_to_jiffies(100);
-
-		/* Wait for 16C32 to write receive status to buffer entry. */
-		status=info->rx_buffer_list[0].status;
-		while ( status == 0 ) {
-			if (time_after(jiffies, EndTime)) {
-				rc = false;
-				break;
-			}
-			status=info->rx_buffer_list[0].status;
-		}
-	}
-
-
-	if ( rc ) {
-		/* CHECK FOR RECEIVE ERRORS */
-		status = info->rx_buffer_list[0].status;
-
-		if ( status & (BIT8 + BIT3 + BIT1) ) {
-			/* receive error has occurred */
-			rc = false;
-		} else {
-			if ( memcmp( info->tx_buffer_list[0].virt_addr ,
-				info->rx_buffer_list[0].virt_addr, FrameSize ) ){
-				rc = false;
-			}
-		}
-	}
-
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-	usc_reset( info );
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-	/* restore current port options */
-	memcpy(&info->params,&tmp_params,sizeof(MGSL_PARAMS));
-	
-	return rc;
-
-}	/* end of mgsl_dma_test() */
-
-/* mgsl_adapter_test()
- * 
- * 	Perform the register, IRQ, and DMA tests for the 16C32.
- * 	
- * Arguments:		info	pointer to device instance data
- * Return Value:	0 if success, otherwise -ENODEV
- */
-static int mgsl_adapter_test( struct mgsl_struct *info )
-{
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk( "%s(%d):Testing device %s\n",
-			__FILE__,__LINE__,info->device_name );
-			
-	if ( !mgsl_register_test( info ) ) {
-		info->init_error = DiagStatus_AddressFailure;
-		printk( "%s(%d):Register test failure for device %s Addr=%04X\n",
-			__FILE__,__LINE__,info->device_name, (unsigned short)(info->io_base) );
-		return -ENODEV;
-	}
-
-	if ( !mgsl_irq_test( info ) ) {
-		info->init_error = DiagStatus_IrqFailure;
-		printk( "%s(%d):Interrupt test failure for device %s IRQ=%d\n",
-			__FILE__,__LINE__,info->device_name, (unsigned short)(info->irq_level) );
-		return -ENODEV;
-	}
-
-	if ( !mgsl_dma_test( info ) ) {
-		info->init_error = DiagStatus_DmaFailure;
-		printk( "%s(%d):DMA test failure for device %s DMA=%d\n",
-			__FILE__,__LINE__,info->device_name, (unsigned short)(info->dma_level) );
-		return -ENODEV;
-	}
-
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk( "%s(%d):device %s passed diagnostics\n",
-			__FILE__,__LINE__,info->device_name );
-			
-	return 0;
-
-}	/* end of mgsl_adapter_test() */
-
-/* mgsl_memory_test()
- * 
- * 	Test the shared memory on a PCI adapter.
- * 
- * Arguments:		info	pointer to device instance data
- * Return Value:	true if test passed, otherwise false
- */
-static bool mgsl_memory_test( struct mgsl_struct *info )
-{
-	static unsigned long BitPatterns[] =
-		{ 0x0, 0x55555555, 0xaaaaaaaa, 0x66666666, 0x99999999, 0xffffffff, 0x12345678 };
-	unsigned long Patterncount = ARRAY_SIZE(BitPatterns);
-	unsigned long i;
-	unsigned long TestLimit = SHARED_MEM_ADDRESS_SIZE/sizeof(unsigned long);
-	unsigned long * TestAddr;
-
-	if ( info->bus_type != MGSL_BUS_TYPE_PCI )
-		return true;
-
-	TestAddr = (unsigned long *)info->memory_base;
-
-	/* Test data lines with test pattern at one location. */
-
-	for ( i = 0 ; i < Patterncount ; i++ ) {
-		*TestAddr = BitPatterns[i];
-		if ( *TestAddr != BitPatterns[i] )
-			return false;
-	}
-
-	/* Test address lines with incrementing pattern over */
-	/* entire address range. */
-
-	for ( i = 0 ; i < TestLimit ; i++ ) {
-		*TestAddr = i * 4;
-		TestAddr++;
-	}
-
-	TestAddr = (unsigned long *)info->memory_base;
-
-	for ( i = 0 ; i < TestLimit ; i++ ) {
-		if ( *TestAddr != i * 4 )
-			return false;
-		TestAddr++;
-	}
-
-	memset( info->memory_base, 0, SHARED_MEM_ADDRESS_SIZE );
-
-	return true;
-
-}	/* End Of mgsl_memory_test() */
-
-
-/* mgsl_load_pci_memory()
- * 
- * 	Load a large block of data into the PCI shared memory.
- * 	Use this instead of memcpy() or memmove() to move data
- * 	into the PCI shared memory.
- * 
- * Notes:
- * 
- * 	This function prevents the PCI9050 interface chip from hogging
- * 	the adapter local bus, which can starve the 16C32 by preventing
- * 	16C32 bus master cycles.
- * 
- * 	The PCI9050 documentation says that the 9050 will always release
- * 	control of the local bus after completing the current read
- * 	or write operation.
- * 
- * 	It appears that as long as the PCI9050 write FIFO is full, the
- * 	PCI9050 treats all of the writes as a single burst transaction
- * 	and will not release the bus. This causes DMA latency problems
- * 	at high speeds when copying large data blocks to the shared
- * 	memory.
- * 
- * 	This function in effect, breaks the a large shared memory write
- * 	into multiple transations by interleaving a shared memory read
- * 	which will flush the write FIFO and 'complete' the write
- * 	transation. This allows any pending DMA request to gain control
- * 	of the local bus in a timely fasion.
- * 
- * Arguments:
- * 
- * 	TargetPtr	pointer to target address in PCI shared memory
- * 	SourcePtr	pointer to source buffer for data
- * 	count		count in bytes of data to copy
- *
- * Return Value:	None
- */
-static void mgsl_load_pci_memory( char* TargetPtr, const char* SourcePtr,
-	unsigned short count )
-{
-	/* 16 32-bit writes @ 60ns each = 960ns max latency on local bus */
-#define PCI_LOAD_INTERVAL 64
-
-	unsigned short Intervalcount = count / PCI_LOAD_INTERVAL;
-	unsigned short Index;
-	unsigned long Dummy;
-
-	for ( Index = 0 ; Index < Intervalcount ; Index++ )
-	{
-		memcpy(TargetPtr, SourcePtr, PCI_LOAD_INTERVAL);
-		Dummy = *((volatile unsigned long *)TargetPtr);
-		TargetPtr += PCI_LOAD_INTERVAL;
-		SourcePtr += PCI_LOAD_INTERVAL;
-	}
-
-	memcpy( TargetPtr, SourcePtr, count % PCI_LOAD_INTERVAL );
-
-}	/* End Of mgsl_load_pci_memory() */
-
-static void mgsl_trace_block(struct mgsl_struct *info,const char* data, int count, int xmit)
-{
-	int i;
-	int linecount;
-	if (xmit)
-		printk("%s tx data:\n",info->device_name);
-	else
-		printk("%s rx data:\n",info->device_name);
-		
-	while(count) {
-		if (count > 16)
-			linecount = 16;
-		else
-			linecount = count;
-			
-		for(i=0;i<linecount;i++)
-			printk("%02X ",(unsigned char)data[i]);
-		for(;i<17;i++)
-			printk("   ");
-		for(i=0;i<linecount;i++) {
-			if (data[i]>=040 && data[i]<=0176)
-				printk("%c",data[i]);
-			else
-				printk(".");
-		}
-		printk("\n");
-		
-		data  += linecount;
-		count -= linecount;
-	}
-}	/* end of mgsl_trace_block() */
-
-/* mgsl_tx_timeout()
- * 
- * 	called when HDLC frame times out
- * 	update stats and do tx completion processing
- * 	
- * Arguments:	context		pointer to device instance data
- * Return Value:	None
- */
-static void mgsl_tx_timeout(unsigned long context)
-{
-	struct mgsl_struct *info = (struct mgsl_struct*)context;
-	unsigned long flags;
-	
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk( "%s(%d):mgsl_tx_timeout(%s)\n",
-			__FILE__,__LINE__,info->device_name);
-	if(info->tx_active &&
-	   (info->params.mode == MGSL_MODE_HDLC ||
-	    info->params.mode == MGSL_MODE_RAW) ) {
-		info->icount.txtimeout++;
-	}
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-	info->tx_active = false;
-	info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
-
-	if ( info->params.flags & HDLC_FLAG_HDLC_LOOPMODE )
-		usc_loopmode_cancel_transmit( info );
-
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-	
-#if SYNCLINK_GENERIC_HDLC
-	if (info->netcount)
-		hdlcdev_tx_done(info);
-	else
-#endif
-		mgsl_bh_transmit(info);
-	
-}	/* end of mgsl_tx_timeout() */
-
-/* signal that there are no more frames to send, so that
- * line is 'released' by echoing RxD to TxD when current
- * transmission is complete (or immediately if no tx in progress).
- */
-static int mgsl_loopmode_send_done( struct mgsl_struct * info )
-{
-	unsigned long flags;
-	
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-	if (info->params.flags & HDLC_FLAG_HDLC_LOOPMODE) {
-		if (info->tx_active)
-			info->loopmode_send_done_requested = true;
-		else
-			usc_loopmode_send_done(info);
-	}
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-	return 0;
-}
-
-/* release the line by echoing RxD to TxD
- * upon completion of a transmit frame
- */
-static void usc_loopmode_send_done( struct mgsl_struct * info )
-{
- 	info->loopmode_send_done_requested = false;
- 	/* clear CMR:13 to 0 to start echoing RxData to TxData */
- 	info->cmr_value &= ~BIT13;			  
- 	usc_OutReg(info, CMR, info->cmr_value);
-}
-
-/* abort a transmit in progress while in HDLC LoopMode
- */
-static void usc_loopmode_cancel_transmit( struct mgsl_struct * info )
-{
- 	/* reset tx dma channel and purge TxFifo */
- 	usc_RTCmd( info, RTCmd_PurgeTxFifo );
- 	usc_DmaCmd( info, DmaCmd_ResetTxChannel );
-  	usc_loopmode_send_done( info );
-}
-
-/* for HDLC/SDLC LoopMode, setting CMR:13 after the transmitter is enabled
- * is an Insert Into Loop action. Upon receipt of a GoAhead sequence (RxAbort)
- * we must clear CMR:13 to begin repeating TxData to RxData
- */
-static void usc_loopmode_insert_request( struct mgsl_struct * info )
-{
- 	info->loopmode_insert_requested = true;
- 
- 	/* enable RxAbort irq. On next RxAbort, clear CMR:13 to
- 	 * begin repeating TxData on RxData (complete insertion)
-	 */
- 	usc_OutReg( info, RICR, 
-		(usc_InReg( info, RICR ) | RXSTATUS_ABORT_RECEIVED ) );
-		
-	/* set CMR:13 to insert into loop on next GoAhead (RxAbort) */
-	info->cmr_value |= BIT13;
- 	usc_OutReg(info, CMR, info->cmr_value);
-}
-
-/* return 1 if station is inserted into the loop, otherwise 0
- */
-static int usc_loopmode_active( struct mgsl_struct * info)
-{
- 	return usc_InReg( info, CCSR ) & BIT7 ? 1 : 0 ;
-}
-
-#if SYNCLINK_GENERIC_HDLC
-
-/**
- * called by generic HDLC layer when protocol selected (PPP, frame relay, etc.)
- * set encoding and frame check sequence (FCS) options
- *
- * dev       pointer to network device structure
- * encoding  serial encoding setting
- * parity    FCS setting
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
-			  unsigned short parity)
-{
-	struct mgsl_struct *info = dev_to_port(dev);
-	unsigned char  new_encoding;
-	unsigned short new_crctype;
-
-	/* return error if TTY interface open */
-	if (info->port.count)
-		return -EBUSY;
-
-	switch (encoding)
-	{
-	case ENCODING_NRZ:        new_encoding = HDLC_ENCODING_NRZ; break;
-	case ENCODING_NRZI:       new_encoding = HDLC_ENCODING_NRZI_SPACE; break;
-	case ENCODING_FM_MARK:    new_encoding = HDLC_ENCODING_BIPHASE_MARK; break;
-	case ENCODING_FM_SPACE:   new_encoding = HDLC_ENCODING_BIPHASE_SPACE; break;
-	case ENCODING_MANCHESTER: new_encoding = HDLC_ENCODING_BIPHASE_LEVEL; break;
-	default: return -EINVAL;
-	}
-
-	switch (parity)
-	{
-	case PARITY_NONE:            new_crctype = HDLC_CRC_NONE; break;
-	case PARITY_CRC16_PR1_CCITT: new_crctype = HDLC_CRC_16_CCITT; break;
-	case PARITY_CRC32_PR1_CCITT: new_crctype = HDLC_CRC_32_CCITT; break;
-	default: return -EINVAL;
-	}
-
-	info->params.encoding = new_encoding;
-	info->params.crc_type = new_crctype;
-
-	/* if network interface up, reprogram hardware */
-	if (info->netcount)
-		mgsl_program_hw(info);
-
-	return 0;
-}
-
-/**
- * called by generic HDLC layer to send frame
- *
- * skb  socket buffer containing HDLC frame
- * dev  pointer to network device structure
- */
-static netdev_tx_t hdlcdev_xmit(struct sk_buff *skb,
-				      struct net_device *dev)
-{
-	struct mgsl_struct *info = dev_to_port(dev);
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk(KERN_INFO "%s:hdlc_xmit(%s)\n",__FILE__,dev->name);
-
-	/* stop sending until this frame completes */
-	netif_stop_queue(dev);
-
-	/* copy data to device buffers */
-	info->xmit_cnt = skb->len;
-	mgsl_load_tx_dma_buffer(info, skb->data, skb->len);
-
-	/* update network statistics */
-	dev->stats.tx_packets++;
-	dev->stats.tx_bytes += skb->len;
-
-	/* done with socket buffer, so free it */
-	dev_kfree_skb(skb);
-
-	/* save start time for transmit timeout detection */
-	dev->trans_start = jiffies;
-
-	/* start hardware transmitter if necessary */
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-	if (!info->tx_active)
-	 	usc_start_transmitter(info);
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-	return NETDEV_TX_OK;
-}
-
-/**
- * called by network layer when interface enabled
- * claim resources and initialize hardware
- *
- * dev  pointer to network device structure
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_open(struct net_device *dev)
-{
-	struct mgsl_struct *info = dev_to_port(dev);
-	int rc;
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s:hdlcdev_open(%s)\n",__FILE__,dev->name);
-
-	/* generic HDLC layer open processing */
-	if ((rc = hdlc_open(dev)))
-		return rc;
-
-	/* arbitrate between network and tty opens */
-	spin_lock_irqsave(&info->netlock, flags);
-	if (info->port.count != 0 || info->netcount != 0) {
-		printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
-		spin_unlock_irqrestore(&info->netlock, flags);
-		return -EBUSY;
-	}
-	info->netcount=1;
-	spin_unlock_irqrestore(&info->netlock, flags);
-
-	/* claim resources and init adapter */
-	if ((rc = startup(info)) != 0) {
-		spin_lock_irqsave(&info->netlock, flags);
-		info->netcount=0;
-		spin_unlock_irqrestore(&info->netlock, flags);
-		return rc;
-	}
-
-	/* assert DTR and RTS, apply hardware settings */
-	info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR;
-	mgsl_program_hw(info);
-
-	/* enable network layer transmit */
-	dev->trans_start = jiffies;
-	netif_start_queue(dev);
-
-	/* inform generic HDLC layer of current DCD status */
-	spin_lock_irqsave(&info->irq_spinlock, flags);
-	usc_get_serial_signals(info);
-	spin_unlock_irqrestore(&info->irq_spinlock, flags);
-	if (info->serial_signals & SerialSignal_DCD)
-		netif_carrier_on(dev);
-	else
-		netif_carrier_off(dev);
-	return 0;
-}
-
-/**
- * called by network layer when interface is disabled
- * shutdown hardware and release resources
- *
- * dev  pointer to network device structure
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_close(struct net_device *dev)
-{
-	struct mgsl_struct *info = dev_to_port(dev);
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s:hdlcdev_close(%s)\n",__FILE__,dev->name);
-
-	netif_stop_queue(dev);
-
-	/* shutdown adapter and release resources */
-	shutdown(info);
-
-	hdlc_close(dev);
-
-	spin_lock_irqsave(&info->netlock, flags);
-	info->netcount=0;
-	spin_unlock_irqrestore(&info->netlock, flags);
-
-	return 0;
-}
-
-/**
- * called by network layer to process IOCTL call to network device
- *
- * dev  pointer to network device structure
- * ifr  pointer to network interface request structure
- * cmd  IOCTL command code
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
-{
-	const size_t size = sizeof(sync_serial_settings);
-	sync_serial_settings new_line;
-	sync_serial_settings __user *line = ifr->ifr_settings.ifs_ifsu.sync;
-	struct mgsl_struct *info = dev_to_port(dev);
-	unsigned int flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name);
-
-	/* return error if TTY interface open */
-	if (info->port.count)
-		return -EBUSY;
-
-	if (cmd != SIOCWANDEV)
-		return hdlc_ioctl(dev, ifr, cmd);
-
-	switch(ifr->ifr_settings.type) {
-	case IF_GET_IFACE: /* return current sync_serial_settings */
-
-		ifr->ifr_settings.type = IF_IFACE_SYNC_SERIAL;
-		if (ifr->ifr_settings.size < size) {
-			ifr->ifr_settings.size = size; /* data size wanted */
-			return -ENOBUFS;
-		}
-
-		flags = info->params.flags & (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL |
-					      HDLC_FLAG_RXC_BRG    | HDLC_FLAG_RXC_TXCPIN |
-					      HDLC_FLAG_TXC_TXCPIN | HDLC_FLAG_TXC_DPLL |
-					      HDLC_FLAG_TXC_BRG    | HDLC_FLAG_TXC_RXCPIN);
-
-		switch (flags){
-		case (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_TXCPIN): new_line.clock_type = CLOCK_EXT; break;
-		case (HDLC_FLAG_RXC_BRG    | HDLC_FLAG_TXC_BRG):    new_line.clock_type = CLOCK_INT; break;
-		case (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_BRG):    new_line.clock_type = CLOCK_TXINT; break;
-		case (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_RXCPIN): new_line.clock_type = CLOCK_TXFROMRX; break;
-		default: new_line.clock_type = CLOCK_DEFAULT;
-		}
-
-		new_line.clock_rate = info->params.clock_speed;
-		new_line.loopback   = info->params.loopback ? 1:0;
-
-		if (copy_to_user(line, &new_line, size))
-			return -EFAULT;
-		return 0;
-
-	case IF_IFACE_SYNC_SERIAL: /* set sync_serial_settings */
-
-		if(!capable(CAP_NET_ADMIN))
-			return -EPERM;
-		if (copy_from_user(&new_line, line, size))
-			return -EFAULT;
-
-		switch (new_line.clock_type)
-		{
-		case CLOCK_EXT:      flags = HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_TXCPIN; break;
-		case CLOCK_TXFROMRX: flags = HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_RXCPIN; break;
-		case CLOCK_INT:      flags = HDLC_FLAG_RXC_BRG    | HDLC_FLAG_TXC_BRG;    break;
-		case CLOCK_TXINT:    flags = HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_BRG;    break;
-		case CLOCK_DEFAULT:  flags = info->params.flags &
-					     (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL |
-					      HDLC_FLAG_RXC_BRG    | HDLC_FLAG_RXC_TXCPIN |
-					      HDLC_FLAG_TXC_TXCPIN | HDLC_FLAG_TXC_DPLL |
-					      HDLC_FLAG_TXC_BRG    | HDLC_FLAG_TXC_RXCPIN); break;
-		default: return -EINVAL;
-		}
-
-		if (new_line.loopback != 0 && new_line.loopback != 1)
-			return -EINVAL;
-
-		info->params.flags &= ~(HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL |
-					HDLC_FLAG_RXC_BRG    | HDLC_FLAG_RXC_TXCPIN |
-					HDLC_FLAG_TXC_TXCPIN | HDLC_FLAG_TXC_DPLL |
-					HDLC_FLAG_TXC_BRG    | HDLC_FLAG_TXC_RXCPIN);
-		info->params.flags |= flags;
-
-		info->params.loopback = new_line.loopback;
-
-		if (flags & (HDLC_FLAG_RXC_BRG | HDLC_FLAG_TXC_BRG))
-			info->params.clock_speed = new_line.clock_rate;
-		else
-			info->params.clock_speed = 0;
-
-		/* if network interface up, reprogram hardware */
-		if (info->netcount)
-			mgsl_program_hw(info);
-		return 0;
-
-	default:
-		return hdlc_ioctl(dev, ifr, cmd);
-	}
-}
-
-/**
- * called by network layer when transmit timeout is detected
- *
- * dev  pointer to network device structure
- */
-static void hdlcdev_tx_timeout(struct net_device *dev)
-{
-	struct mgsl_struct *info = dev_to_port(dev);
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("hdlcdev_tx_timeout(%s)\n",dev->name);
-
-	dev->stats.tx_errors++;
-	dev->stats.tx_aborted_errors++;
-
-	spin_lock_irqsave(&info->irq_spinlock,flags);
-	usc_stop_transmitter(info);
-	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-	netif_wake_queue(dev);
-}
-
-/**
- * called by device driver when transmit completes
- * reenable network layer transmit if stopped
- *
- * info  pointer to device instance information
- */
-static void hdlcdev_tx_done(struct mgsl_struct *info)
-{
-	if (netif_queue_stopped(info->netdev))
-		netif_wake_queue(info->netdev);
-}
-
-/**
- * called by device driver when frame received
- * pass frame to network layer
- *
- * info  pointer to device instance information
- * buf   pointer to buffer contianing frame data
- * size  count of data bytes in buf
- */
-static void hdlcdev_rx(struct mgsl_struct *info, char *buf, int size)
-{
-	struct sk_buff *skb = dev_alloc_skb(size);
-	struct net_device *dev = info->netdev;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("hdlcdev_rx(%s)\n", dev->name);
-
-	if (skb == NULL) {
-		printk(KERN_NOTICE "%s: can't alloc skb, dropping packet\n",
-		       dev->name);
-		dev->stats.rx_dropped++;
-		return;
-	}
-
-	memcpy(skb_put(skb, size), buf, size);
-
-	skb->protocol = hdlc_type_trans(skb, dev);
-
-	dev->stats.rx_packets++;
-	dev->stats.rx_bytes += size;
-
-	netif_rx(skb);
-}
-
-static const struct net_device_ops hdlcdev_ops = {
-	.ndo_open       = hdlcdev_open,
-	.ndo_stop       = hdlcdev_close,
-	.ndo_change_mtu = hdlc_change_mtu,
-	.ndo_start_xmit = hdlc_start_xmit,
-	.ndo_do_ioctl   = hdlcdev_ioctl,
-	.ndo_tx_timeout = hdlcdev_tx_timeout,
-};
-
-/**
- * called by device driver when adding device instance
- * do generic HDLC initialization
- *
- * info  pointer to device instance information
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_init(struct mgsl_struct *info)
-{
-	int rc;
-	struct net_device *dev;
-	hdlc_device *hdlc;
-
-	/* allocate and initialize network and HDLC layer objects */
-
-	if (!(dev = alloc_hdlcdev(info))) {
-		printk(KERN_ERR "%s:hdlc device allocation failure\n",__FILE__);
-		return -ENOMEM;
-	}
-
-	/* for network layer reporting purposes only */
-	dev->base_addr = info->io_base;
-	dev->irq       = info->irq_level;
-	dev->dma       = info->dma_level;
-
-	/* network layer callbacks and settings */
-	dev->netdev_ops     = &hdlcdev_ops;
-	dev->watchdog_timeo = 10 * HZ;
-	dev->tx_queue_len   = 50;
-
-	/* generic HDLC layer callbacks and settings */
-	hdlc         = dev_to_hdlc(dev);
-	hdlc->attach = hdlcdev_attach;
-	hdlc->xmit   = hdlcdev_xmit;
-
-	/* register objects with HDLC layer */
-	if ((rc = register_hdlc_device(dev))) {
-		printk(KERN_WARNING "%s:unable to register hdlc device\n",__FILE__);
-		free_netdev(dev);
-		return rc;
-	}
-
-	info->netdev = dev;
-	return 0;
-}
-
-/**
- * called by device driver when removing device instance
- * do generic HDLC cleanup
- *
- * info  pointer to device instance information
- */
-static void hdlcdev_exit(struct mgsl_struct *info)
-{
-	unregister_hdlc_device(info->netdev);
-	free_netdev(info->netdev);
-	info->netdev = NULL;
-}
-
-#endif /* CONFIG_HDLC */
-
-
-static int __devinit synclink_init_one (struct pci_dev *dev,
-					const struct pci_device_id *ent)
-{
-	struct mgsl_struct *info;
-
-	if (pci_enable_device(dev)) {
-		printk("error enabling pci device %p\n", dev);
-		return -EIO;
-	}
-
-	if (!(info = mgsl_allocate_device())) {
-		printk("can't allocate device instance data.\n");
-		return -EIO;
-	}
-
-        /* Copy user configuration info to device instance data */
-		
-	info->io_base = pci_resource_start(dev, 2);
-	info->irq_level = dev->irq;
-	info->phys_memory_base = pci_resource_start(dev, 3);
-				
-        /* Because veremap only works on page boundaries we must map
-	 * a larger area than is actually implemented for the LCR
-	 * memory range. We map a full page starting at the page boundary.
-	 */
-	info->phys_lcr_base = pci_resource_start(dev, 0);
-	info->lcr_offset    = info->phys_lcr_base & (PAGE_SIZE-1);
-	info->phys_lcr_base &= ~(PAGE_SIZE-1);
-				
-	info->bus_type = MGSL_BUS_TYPE_PCI;
-	info->io_addr_size = 8;
-	info->irq_flags = IRQF_SHARED;
-
-	if (dev->device == 0x0210) {
-		/* Version 1 PCI9030 based universal PCI adapter */
-		info->misc_ctrl_value = 0x007c4080;
-		info->hw_version = 1;
-	} else {
-		/* Version 0 PCI9050 based 5V PCI adapter
-		 * A PCI9050 bug prevents reading LCR registers if 
-		 * LCR base address bit 7 is set. Maintain shadow
-		 * value so we can write to LCR misc control reg.
-		 */
-		info->misc_ctrl_value = 0x087e4546;
-		info->hw_version = 0;
-	}
-				
-	mgsl_add_device(info);
-
-	return 0;
-}
-
-static void __devexit synclink_remove_one (struct pci_dev *dev)
-{
-}
-
diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c
deleted file mode 100644
index a35dd549a008..000000000000
--- a/drivers/char/synclink_gt.c
+++ /dev/null
@@ -1,5161 +0,0 @@
-/*
- * Device driver for Microgate SyncLink GT serial adapters.
- *
- * written by Paul Fulghum for Microgate Corporation
- * paulkf@microgate.com
- *
- * Microgate and SyncLink are trademarks of Microgate Corporation
- *
- * This code is released under the GNU General Public License (GPL)
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-/*
- * DEBUG OUTPUT DEFINITIONS
- *
- * uncomment lines below to enable specific types of debug output
- *
- * DBGINFO   information - most verbose output
- * DBGERR    serious errors
- * DBGBH     bottom half service routine debugging
- * DBGISR    interrupt service routine debugging
- * DBGDATA   output receive and transmit data
- * DBGTBUF   output transmit DMA buffers and registers
- * DBGRBUF   output receive DMA buffers and registers
- */
-
-#define DBGINFO(fmt) if (debug_level >= DEBUG_LEVEL_INFO) printk fmt
-#define DBGERR(fmt) if (debug_level >= DEBUG_LEVEL_ERROR) printk fmt
-#define DBGBH(fmt) if (debug_level >= DEBUG_LEVEL_BH) printk fmt
-#define DBGISR(fmt) if (debug_level >= DEBUG_LEVEL_ISR) printk fmt
-#define DBGDATA(info, buf, size, label) if (debug_level >= DEBUG_LEVEL_DATA) trace_block((info), (buf), (size), (label))
-/*#define DBGTBUF(info) dump_tbufs(info)*/
-/*#define DBGRBUF(info) dump_rbufs(info)*/
-
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/serial.h>
-#include <linux/major.h>
-#include <linux/string.h>
-#include <linux/fcntl.h>
-#include <linux/ptrace.h>
-#include <linux/ioport.h>
-#include <linux/mm.h>
-#include <linux/seq_file.h>
-#include <linux/slab.h>
-#include <linux/netdevice.h>
-#include <linux/vmalloc.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/ioctl.h>
-#include <linux/termios.h>
-#include <linux/bitops.h>
-#include <linux/workqueue.h>
-#include <linux/hdlc.h>
-#include <linux/synclink.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/dma.h>
-#include <asm/types.h>
-#include <asm/uaccess.h>
-
-#if defined(CONFIG_HDLC) || (defined(CONFIG_HDLC_MODULE) && defined(CONFIG_SYNCLINK_GT_MODULE))
-#define SYNCLINK_GENERIC_HDLC 1
-#else
-#define SYNCLINK_GENERIC_HDLC 0
-#endif
-
-/*
- * module identification
- */
-static char *driver_name     = "SyncLink GT";
-static char *tty_driver_name = "synclink_gt";
-static char *tty_dev_prefix  = "ttySLG";
-MODULE_LICENSE("GPL");
-#define MGSL_MAGIC 0x5401
-#define MAX_DEVICES 32
-
-static struct pci_device_id pci_table[] = {
-	{PCI_VENDOR_ID_MICROGATE, SYNCLINK_GT_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,},
-	{PCI_VENDOR_ID_MICROGATE, SYNCLINK_GT2_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,},
-	{PCI_VENDOR_ID_MICROGATE, SYNCLINK_GT4_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,},
-	{PCI_VENDOR_ID_MICROGATE, SYNCLINK_AC_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,},
-	{0,}, /* terminate list */
-};
-MODULE_DEVICE_TABLE(pci, pci_table);
-
-static int  init_one(struct pci_dev *dev,const struct pci_device_id *ent);
-static void remove_one(struct pci_dev *dev);
-static struct pci_driver pci_driver = {
-	.name		= "synclink_gt",
-	.id_table	= pci_table,
-	.probe		= init_one,
-	.remove		= __devexit_p(remove_one),
-};
-
-static bool pci_registered;
-
-/*
- * module configuration and status
- */
-static struct slgt_info *slgt_device_list;
-static int slgt_device_count;
-
-static int ttymajor;
-static int debug_level;
-static int maxframe[MAX_DEVICES];
-
-module_param(ttymajor, int, 0);
-module_param(debug_level, int, 0);
-module_param_array(maxframe, int, NULL, 0);
-
-MODULE_PARM_DESC(ttymajor, "TTY major device number override: 0=auto assigned");
-MODULE_PARM_DESC(debug_level, "Debug syslog output: 0=disabled, 1 to 5=increasing detail");
-MODULE_PARM_DESC(maxframe, "Maximum frame size used by device (4096 to 65535)");
-
-/*
- * tty support and callbacks
- */
-static struct tty_driver *serial_driver;
-
-static int  open(struct tty_struct *tty, struct file * filp);
-static void close(struct tty_struct *tty, struct file * filp);
-static void hangup(struct tty_struct *tty);
-static void set_termios(struct tty_struct *tty, struct ktermios *old_termios);
-
-static int  write(struct tty_struct *tty, const unsigned char *buf, int count);
-static int put_char(struct tty_struct *tty, unsigned char ch);
-static void send_xchar(struct tty_struct *tty, char ch);
-static void wait_until_sent(struct tty_struct *tty, int timeout);
-static int  write_room(struct tty_struct *tty);
-static void flush_chars(struct tty_struct *tty);
-static void flush_buffer(struct tty_struct *tty);
-static void tx_hold(struct tty_struct *tty);
-static void tx_release(struct tty_struct *tty);
-
-static int  ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg);
-static int  chars_in_buffer(struct tty_struct *tty);
-static void throttle(struct tty_struct * tty);
-static void unthrottle(struct tty_struct * tty);
-static int set_break(struct tty_struct *tty, int break_state);
-
-/*
- * generic HDLC support and callbacks
- */
-#if SYNCLINK_GENERIC_HDLC
-#define dev_to_port(D) (dev_to_hdlc(D)->priv)
-static void hdlcdev_tx_done(struct slgt_info *info);
-static void hdlcdev_rx(struct slgt_info *info, char *buf, int size);
-static int  hdlcdev_init(struct slgt_info *info);
-static void hdlcdev_exit(struct slgt_info *info);
-#endif
-
-
-/*
- * device specific structures, macros and functions
- */
-
-#define SLGT_MAX_PORTS 4
-#define SLGT_REG_SIZE  256
-
-/*
- * conditional wait facility
- */
-struct cond_wait {
-	struct cond_wait *next;
-	wait_queue_head_t q;
-	wait_queue_t wait;
-	unsigned int data;
-};
-static void init_cond_wait(struct cond_wait *w, unsigned int data);
-static void add_cond_wait(struct cond_wait **head, struct cond_wait *w);
-static void remove_cond_wait(struct cond_wait **head, struct cond_wait *w);
-static void flush_cond_wait(struct cond_wait **head);
-
-/*
- * DMA buffer descriptor and access macros
- */
-struct slgt_desc
-{
-	__le16 count;
-	__le16 status;
-	__le32 pbuf;  /* physical address of data buffer */
-	__le32 next;  /* physical address of next descriptor */
-
-	/* driver book keeping */
-	char *buf;          /* virtual  address of data buffer */
-    	unsigned int pdesc; /* physical address of this descriptor */
-	dma_addr_t buf_dma_addr;
-	unsigned short buf_count;
-};
-
-#define set_desc_buffer(a,b) (a).pbuf = cpu_to_le32((unsigned int)(b))
-#define set_desc_next(a,b) (a).next   = cpu_to_le32((unsigned int)(b))
-#define set_desc_count(a,b)(a).count  = cpu_to_le16((unsigned short)(b))
-#define set_desc_eof(a,b)  (a).status = cpu_to_le16((b) ? (le16_to_cpu((a).status) | BIT0) : (le16_to_cpu((a).status) & ~BIT0))
-#define set_desc_status(a, b) (a).status = cpu_to_le16((unsigned short)(b))
-#define desc_count(a)      (le16_to_cpu((a).count))
-#define desc_status(a)     (le16_to_cpu((a).status))
-#define desc_complete(a)   (le16_to_cpu((a).status) & BIT15)
-#define desc_eof(a)        (le16_to_cpu((a).status) & BIT2)
-#define desc_crc_error(a)  (le16_to_cpu((a).status) & BIT1)
-#define desc_abort(a)      (le16_to_cpu((a).status) & BIT0)
-#define desc_residue(a)    ((le16_to_cpu((a).status) & 0x38) >> 3)
-
-struct _input_signal_events {
-	int ri_up;
-	int ri_down;
-	int dsr_up;
-	int dsr_down;
-	int dcd_up;
-	int dcd_down;
-	int cts_up;
-	int cts_down;
-};
-
-/*
- * device instance data structure
- */
-struct slgt_info {
-	void *if_ptr;		/* General purpose pointer (used by SPPP) */
-	struct tty_port port;
-
-	struct slgt_info *next_device;	/* device list link */
-
-	int magic;
-
-	char device_name[25];
-	struct pci_dev *pdev;
-
-	int port_count;  /* count of ports on adapter */
-	int adapter_num; /* adapter instance number */
-	int port_num;    /* port instance number */
-
-	/* array of pointers to port contexts on this adapter */
-	struct slgt_info *port_array[SLGT_MAX_PORTS];
-
-	int			line;		/* tty line instance number */
-
-	struct mgsl_icount	icount;
-
-	int			timeout;
-	int			x_char;		/* xon/xoff character */
-	unsigned int		read_status_mask;
-	unsigned int 		ignore_status_mask;
-
-	wait_queue_head_t	status_event_wait_q;
-	wait_queue_head_t	event_wait_q;
-	struct timer_list	tx_timer;
-	struct timer_list	rx_timer;
-
-	unsigned int            gpio_present;
-	struct cond_wait        *gpio_wait_q;
-
-	spinlock_t lock;	/* spinlock for synchronizing with ISR */
-
-	struct work_struct task;
-	u32 pending_bh;
-	bool bh_requested;
-	bool bh_running;
-
-	int isr_overflow;
-	bool irq_requested;	/* true if IRQ requested */
-	bool irq_occurred;	/* for diagnostics use */
-
-	/* device configuration */
-
-	unsigned int bus_type;
-	unsigned int irq_level;
-	unsigned long irq_flags;
-
-	unsigned char __iomem * reg_addr;  /* memory mapped registers address */
-	u32 phys_reg_addr;
-	bool reg_addr_requested;
-
-	MGSL_PARAMS params;       /* communications parameters */
-	u32 idle_mode;
-	u32 max_frame_size;       /* as set by device config */
-
-	unsigned int rbuf_fill_level;
-	unsigned int rx_pio;
-	unsigned int if_mode;
-	unsigned int base_clock;
-	unsigned int xsync;
-	unsigned int xctrl;
-
-	/* device status */
-
-	bool rx_enabled;
-	bool rx_restart;
-
-	bool tx_enabled;
-	bool tx_active;
-
-	unsigned char signals;    /* serial signal states */
-	int init_error;  /* initialization error */
-
-	unsigned char *tx_buf;
-	int tx_count;
-
-	char flag_buf[MAX_ASYNC_BUFFER_SIZE];
-	char char_buf[MAX_ASYNC_BUFFER_SIZE];
-	bool drop_rts_on_tx_done;
-	struct	_input_signal_events	input_signal_events;
-
-	int dcd_chkcount;	/* check counts to prevent */
-	int cts_chkcount;	/* too many IRQs if a signal */
-	int dsr_chkcount;	/* is floating */
-	int ri_chkcount;
-
-	char *bufs;		/* virtual address of DMA buffer lists */
-	dma_addr_t bufs_dma_addr; /* physical address of buffer descriptors */
-
-	unsigned int rbuf_count;
-	struct slgt_desc *rbufs;
-	unsigned int rbuf_current;
-	unsigned int rbuf_index;
-	unsigned int rbuf_fill_index;
-	unsigned short rbuf_fill_count;
-
-	unsigned int tbuf_count;
-	struct slgt_desc *tbufs;
-	unsigned int tbuf_current;
-	unsigned int tbuf_start;
-
-	unsigned char *tmp_rbuf;
-	unsigned int tmp_rbuf_count;
-
-	/* SPPP/Cisco HDLC device parts */
-
-	int netcount;
-	spinlock_t netlock;
-#if SYNCLINK_GENERIC_HDLC
-	struct net_device *netdev;
-#endif
-
-};
-
-static MGSL_PARAMS default_params = {
-	.mode            = MGSL_MODE_HDLC,
-	.loopback        = 0,
-	.flags           = HDLC_FLAG_UNDERRUN_ABORT15,
-	.encoding        = HDLC_ENCODING_NRZI_SPACE,
-	.clock_speed     = 0,
-	.addr_filter     = 0xff,
-	.crc_type        = HDLC_CRC_16_CCITT,
-	.preamble_length = HDLC_PREAMBLE_LENGTH_8BITS,
-	.preamble        = HDLC_PREAMBLE_PATTERN_NONE,
-	.data_rate       = 9600,
-	.data_bits       = 8,
-	.stop_bits       = 1,
-	.parity          = ASYNC_PARITY_NONE
-};
-
-
-#define BH_RECEIVE  1
-#define BH_TRANSMIT 2
-#define BH_STATUS   4
-#define IO_PIN_SHUTDOWN_LIMIT 100
-
-#define DMABUFSIZE 256
-#define DESC_LIST_SIZE 4096
-
-#define MASK_PARITY  BIT1
-#define MASK_FRAMING BIT0
-#define MASK_BREAK   BIT14
-#define MASK_OVERRUN BIT4
-
-#define GSR   0x00 /* global status */
-#define JCR   0x04 /* JTAG control */
-#define IODR  0x08 /* GPIO direction */
-#define IOER  0x0c /* GPIO interrupt enable */
-#define IOVR  0x10 /* GPIO value */
-#define IOSR  0x14 /* GPIO interrupt status */
-#define TDR   0x80 /* tx data */
-#define RDR   0x80 /* rx data */
-#define TCR   0x82 /* tx control */
-#define TIR   0x84 /* tx idle */
-#define TPR   0x85 /* tx preamble */
-#define RCR   0x86 /* rx control */
-#define VCR   0x88 /* V.24 control */
-#define CCR   0x89 /* clock control */
-#define BDR   0x8a /* baud divisor */
-#define SCR   0x8c /* serial control */
-#define SSR   0x8e /* serial status */
-#define RDCSR 0x90 /* rx DMA control/status */
-#define TDCSR 0x94 /* tx DMA control/status */
-#define RDDAR 0x98 /* rx DMA descriptor address */
-#define TDDAR 0x9c /* tx DMA descriptor address */
-#define XSR   0x40 /* extended sync pattern */
-#define XCR   0x44 /* extended control */
-
-#define RXIDLE      BIT14
-#define RXBREAK     BIT14
-#define IRQ_TXDATA  BIT13
-#define IRQ_TXIDLE  BIT12
-#define IRQ_TXUNDER BIT11 /* HDLC */
-#define IRQ_RXDATA  BIT10
-#define IRQ_RXIDLE  BIT9  /* HDLC */
-#define IRQ_RXBREAK BIT9  /* async */
-#define IRQ_RXOVER  BIT8
-#define IRQ_DSR     BIT7
-#define IRQ_CTS     BIT6
-#define IRQ_DCD     BIT5
-#define IRQ_RI      BIT4
-#define IRQ_ALL     0x3ff0
-#define IRQ_MASTER  BIT0
-
-#define slgt_irq_on(info, mask) \
-	wr_reg16((info), SCR, (unsigned short)(rd_reg16((info), SCR) | (mask)))
-#define slgt_irq_off(info, mask) \
-	wr_reg16((info), SCR, (unsigned short)(rd_reg16((info), SCR) & ~(mask)))
-
-static __u8  rd_reg8(struct slgt_info *info, unsigned int addr);
-static void  wr_reg8(struct slgt_info *info, unsigned int addr, __u8 value);
-static __u16 rd_reg16(struct slgt_info *info, unsigned int addr);
-static void  wr_reg16(struct slgt_info *info, unsigned int addr, __u16 value);
-static __u32 rd_reg32(struct slgt_info *info, unsigned int addr);
-static void  wr_reg32(struct slgt_info *info, unsigned int addr, __u32 value);
-
-static void  msc_set_vcr(struct slgt_info *info);
-
-static int  startup(struct slgt_info *info);
-static int  block_til_ready(struct tty_struct *tty, struct file * filp,struct slgt_info *info);
-static void shutdown(struct slgt_info *info);
-static void program_hw(struct slgt_info *info);
-static void change_params(struct slgt_info *info);
-
-static int  register_test(struct slgt_info *info);
-static int  irq_test(struct slgt_info *info);
-static int  loopback_test(struct slgt_info *info);
-static int  adapter_test(struct slgt_info *info);
-
-static void reset_adapter(struct slgt_info *info);
-static void reset_port(struct slgt_info *info);
-static void async_mode(struct slgt_info *info);
-static void sync_mode(struct slgt_info *info);
-
-static void rx_stop(struct slgt_info *info);
-static void rx_start(struct slgt_info *info);
-static void reset_rbufs(struct slgt_info *info);
-static void free_rbufs(struct slgt_info *info, unsigned int first, unsigned int last);
-static void rdma_reset(struct slgt_info *info);
-static bool rx_get_frame(struct slgt_info *info);
-static bool rx_get_buf(struct slgt_info *info);
-
-static void tx_start(struct slgt_info *info);
-static void tx_stop(struct slgt_info *info);
-static void tx_set_idle(struct slgt_info *info);
-static unsigned int free_tbuf_count(struct slgt_info *info);
-static unsigned int tbuf_bytes(struct slgt_info *info);
-static void reset_tbufs(struct slgt_info *info);
-static void tdma_reset(struct slgt_info *info);
-static bool tx_load(struct slgt_info *info, const char *buf, unsigned int count);
-
-static void get_signals(struct slgt_info *info);
-static void set_signals(struct slgt_info *info);
-static void enable_loopback(struct slgt_info *info);
-static void set_rate(struct slgt_info *info, u32 data_rate);
-
-static int  bh_action(struct slgt_info *info);
-static void bh_handler(struct work_struct *work);
-static void bh_transmit(struct slgt_info *info);
-static void isr_serial(struct slgt_info *info);
-static void isr_rdma(struct slgt_info *info);
-static void isr_txeom(struct slgt_info *info, unsigned short status);
-static void isr_tdma(struct slgt_info *info);
-
-static int  alloc_dma_bufs(struct slgt_info *info);
-static void free_dma_bufs(struct slgt_info *info);
-static int  alloc_desc(struct slgt_info *info);
-static void free_desc(struct slgt_info *info);
-static int  alloc_bufs(struct slgt_info *info, struct slgt_desc *bufs, int count);
-static void free_bufs(struct slgt_info *info, struct slgt_desc *bufs, int count);
-
-static int  alloc_tmp_rbuf(struct slgt_info *info);
-static void free_tmp_rbuf(struct slgt_info *info);
-
-static void tx_timeout(unsigned long context);
-static void rx_timeout(unsigned long context);
-
-/*
- * ioctl handlers
- */
-static int  get_stats(struct slgt_info *info, struct mgsl_icount __user *user_icount);
-static int  get_params(struct slgt_info *info, MGSL_PARAMS __user *params);
-static int  set_params(struct slgt_info *info, MGSL_PARAMS __user *params);
-static int  get_txidle(struct slgt_info *info, int __user *idle_mode);
-static int  set_txidle(struct slgt_info *info, int idle_mode);
-static int  tx_enable(struct slgt_info *info, int enable);
-static int  tx_abort(struct slgt_info *info);
-static int  rx_enable(struct slgt_info *info, int enable);
-static int  modem_input_wait(struct slgt_info *info,int arg);
-static int  wait_mgsl_event(struct slgt_info *info, int __user *mask_ptr);
-static int  tiocmget(struct tty_struct *tty);
-static int  tiocmset(struct tty_struct *tty,
-				unsigned int set, unsigned int clear);
-static int set_break(struct tty_struct *tty, int break_state);
-static int  get_interface(struct slgt_info *info, int __user *if_mode);
-static int  set_interface(struct slgt_info *info, int if_mode);
-static int  set_gpio(struct slgt_info *info, struct gpio_desc __user *gpio);
-static int  get_gpio(struct slgt_info *info, struct gpio_desc __user *gpio);
-static int  wait_gpio(struct slgt_info *info, struct gpio_desc __user *gpio);
-static int  get_xsync(struct slgt_info *info, int __user *if_mode);
-static int  set_xsync(struct slgt_info *info, int if_mode);
-static int  get_xctrl(struct slgt_info *info, int __user *if_mode);
-static int  set_xctrl(struct slgt_info *info, int if_mode);
-
-/*
- * driver functions
- */
-static void add_device(struct slgt_info *info);
-static void device_init(int adapter_num, struct pci_dev *pdev);
-static int  claim_resources(struct slgt_info *info);
-static void release_resources(struct slgt_info *info);
-
-/*
- * DEBUG OUTPUT CODE
- */
-#ifndef DBGINFO
-#define DBGINFO(fmt)
-#endif
-#ifndef DBGERR
-#define DBGERR(fmt)
-#endif
-#ifndef DBGBH
-#define DBGBH(fmt)
-#endif
-#ifndef DBGISR
-#define DBGISR(fmt)
-#endif
-
-#ifdef DBGDATA
-static void trace_block(struct slgt_info *info, const char *data, int count, const char *label)
-{
-	int i;
-	int linecount;
-	printk("%s %s data:\n",info->device_name, label);
-	while(count) {
-		linecount = (count > 16) ? 16 : count;
-		for(i=0; i < linecount; i++)
-			printk("%02X ",(unsigned char)data[i]);
-		for(;i<17;i++)
-			printk("   ");
-		for(i=0;i<linecount;i++) {
-			if (data[i]>=040 && data[i]<=0176)
-				printk("%c",data[i]);
-			else
-				printk(".");
-		}
-		printk("\n");
-		data  += linecount;
-		count -= linecount;
-	}
-}
-#else
-#define DBGDATA(info, buf, size, label)
-#endif
-
-#ifdef DBGTBUF
-static void dump_tbufs(struct slgt_info *info)
-{
-	int i;
-	printk("tbuf_current=%d\n", info->tbuf_current);
-	for (i=0 ; i < info->tbuf_count ; i++) {
-		printk("%d: count=%04X status=%04X\n",
-			i, le16_to_cpu(info->tbufs[i].count), le16_to_cpu(info->tbufs[i].status));
-	}
-}
-#else
-#define DBGTBUF(info)
-#endif
-
-#ifdef DBGRBUF
-static void dump_rbufs(struct slgt_info *info)
-{
-	int i;
-	printk("rbuf_current=%d\n", info->rbuf_current);
-	for (i=0 ; i < info->rbuf_count ; i++) {
-		printk("%d: count=%04X status=%04X\n",
-			i, le16_to_cpu(info->rbufs[i].count), le16_to_cpu(info->rbufs[i].status));
-	}
-}
-#else
-#define DBGRBUF(info)
-#endif
-
-static inline int sanity_check(struct slgt_info *info, char *devname, const char *name)
-{
-#ifdef SANITY_CHECK
-	if (!info) {
-		printk("null struct slgt_info for (%s) in %s\n", devname, name);
-		return 1;
-	}
-	if (info->magic != MGSL_MAGIC) {
-		printk("bad magic number struct slgt_info (%s) in %s\n", devname, name);
-		return 1;
-	}
-#else
-	if (!info)
-		return 1;
-#endif
-	return 0;
-}
-
-/**
- * line discipline callback wrappers
- *
- * The wrappers maintain line discipline references
- * while calling into the line discipline.
- *
- * ldisc_receive_buf  - pass receive data to line discipline
- */
-static void ldisc_receive_buf(struct tty_struct *tty,
-			      const __u8 *data, char *flags, int count)
-{
-	struct tty_ldisc *ld;
-	if (!tty)
-		return;
-	ld = tty_ldisc_ref(tty);
-	if (ld) {
-		if (ld->ops->receive_buf)
-			ld->ops->receive_buf(tty, data, flags, count);
-		tty_ldisc_deref(ld);
-	}
-}
-
-/* tty callbacks */
-
-static int open(struct tty_struct *tty, struct file *filp)
-{
-	struct slgt_info *info;
-	int retval, line;
-	unsigned long flags;
-
-	line = tty->index;
-	if ((line < 0) || (line >= slgt_device_count)) {
-		DBGERR(("%s: open with invalid line #%d.\n", driver_name, line));
-		return -ENODEV;
-	}
-
-	info = slgt_device_list;
-	while(info && info->line != line)
-		info = info->next_device;
-	if (sanity_check(info, tty->name, "open"))
-		return -ENODEV;
-	if (info->init_error) {
-		DBGERR(("%s init error=%d\n", info->device_name, info->init_error));
-		return -ENODEV;
-	}
-
-	tty->driver_data = info;
-	info->port.tty = tty;
-
-	DBGINFO(("%s open, old ref count = %d\n", info->device_name, info->port.count));
-
-	/* If port is closing, signal caller to try again */
-	if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){
-		if (info->port.flags & ASYNC_CLOSING)
-			interruptible_sleep_on(&info->port.close_wait);
-		retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ?
-			-EAGAIN : -ERESTARTSYS);
-		goto cleanup;
-	}
-
-	mutex_lock(&info->port.mutex);
-	info->port.tty->low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
-
-	spin_lock_irqsave(&info->netlock, flags);
-	if (info->netcount) {
-		retval = -EBUSY;
-		spin_unlock_irqrestore(&info->netlock, flags);
-		mutex_unlock(&info->port.mutex);
-		goto cleanup;
-	}
-	info->port.count++;
-	spin_unlock_irqrestore(&info->netlock, flags);
-
-	if (info->port.count == 1) {
-		/* 1st open on this device, init hardware */
-		retval = startup(info);
-		if (retval < 0) {
-			mutex_unlock(&info->port.mutex);
-			goto cleanup;
-		}
-	}
-	mutex_unlock(&info->port.mutex);
-	retval = block_til_ready(tty, filp, info);
-	if (retval) {
-		DBGINFO(("%s block_til_ready rc=%d\n", info->device_name, retval));
-		goto cleanup;
-	}
-
-	retval = 0;
-
-cleanup:
-	if (retval) {
-		if (tty->count == 1)
-			info->port.tty = NULL; /* tty layer will release tty struct */
-		if(info->port.count)
-			info->port.count--;
-	}
-
-	DBGINFO(("%s open rc=%d\n", info->device_name, retval));
-	return retval;
-}
-
-static void close(struct tty_struct *tty, struct file *filp)
-{
-	struct slgt_info *info = tty->driver_data;
-
-	if (sanity_check(info, tty->name, "close"))
-		return;
-	DBGINFO(("%s close entry, count=%d\n", info->device_name, info->port.count));
-
-	if (tty_port_close_start(&info->port, tty, filp) == 0)
-		goto cleanup;
-
-	mutex_lock(&info->port.mutex);
- 	if (info->port.flags & ASYNC_INITIALIZED)
- 		wait_until_sent(tty, info->timeout);
-	flush_buffer(tty);
-	tty_ldisc_flush(tty);
-
-	shutdown(info);
-	mutex_unlock(&info->port.mutex);
-
-	tty_port_close_end(&info->port, tty);
-	info->port.tty = NULL;
-cleanup:
-	DBGINFO(("%s close exit, count=%d\n", tty->driver->name, info->port.count));
-}
-
-static void hangup(struct tty_struct *tty)
-{
-	struct slgt_info *info = tty->driver_data;
-	unsigned long flags;
-
-	if (sanity_check(info, tty->name, "hangup"))
-		return;
-	DBGINFO(("%s hangup\n", info->device_name));
-
-	flush_buffer(tty);
-
-	mutex_lock(&info->port.mutex);
-	shutdown(info);
-
-	spin_lock_irqsave(&info->port.lock, flags);
-	info->port.count = 0;
-	info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
-	info->port.tty = NULL;
-	spin_unlock_irqrestore(&info->port.lock, flags);
-	mutex_unlock(&info->port.mutex);
-
-	wake_up_interruptible(&info->port.open_wait);
-}
-
-static void set_termios(struct tty_struct *tty, struct ktermios *old_termios)
-{
-	struct slgt_info *info = tty->driver_data;
-	unsigned long flags;
-
-	DBGINFO(("%s set_termios\n", tty->driver->name));
-
-	change_params(info);
-
-	/* Handle transition to B0 status */
-	if (old_termios->c_cflag & CBAUD &&
-	    !(tty->termios->c_cflag & CBAUD)) {
-		info->signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
-		spin_lock_irqsave(&info->lock,flags);
-		set_signals(info);
-		spin_unlock_irqrestore(&info->lock,flags);
-	}
-
-	/* Handle transition away from B0 status */
-	if (!(old_termios->c_cflag & CBAUD) &&
-	    tty->termios->c_cflag & CBAUD) {
-		info->signals |= SerialSignal_DTR;
- 		if (!(tty->termios->c_cflag & CRTSCTS) ||
- 		    !test_bit(TTY_THROTTLED, &tty->flags)) {
-			info->signals |= SerialSignal_RTS;
- 		}
-		spin_lock_irqsave(&info->lock,flags);
-	 	set_signals(info);
-		spin_unlock_irqrestore(&info->lock,flags);
-	}
-
-	/* Handle turning off CRTSCTS */
-	if (old_termios->c_cflag & CRTSCTS &&
-	    !(tty->termios->c_cflag & CRTSCTS)) {
-		tty->hw_stopped = 0;
-		tx_release(tty);
-	}
-}
-
-static void update_tx_timer(struct slgt_info *info)
-{
-	/*
-	 * use worst case speed of 1200bps to calculate transmit timeout
-	 * based on data in buffers (tbuf_bytes) and FIFO (128 bytes)
-	 */
-	if (info->params.mode == MGSL_MODE_HDLC) {
-		int timeout  = (tbuf_bytes(info) * 7) + 1000;
-		mod_timer(&info->tx_timer, jiffies + msecs_to_jiffies(timeout));
-	}
-}
-
-static int write(struct tty_struct *tty,
-		 const unsigned char *buf, int count)
-{
-	int ret = 0;
-	struct slgt_info *info = tty->driver_data;
-	unsigned long flags;
-
-	if (sanity_check(info, tty->name, "write"))
-		return -EIO;
-
-	DBGINFO(("%s write count=%d\n", info->device_name, count));
-
-	if (!info->tx_buf || (count > info->max_frame_size))
-		return -EIO;
-
-	if (!count || tty->stopped || tty->hw_stopped)
-		return 0;
-
-	spin_lock_irqsave(&info->lock, flags);
-
-	if (info->tx_count) {
-		/* send accumulated data from send_char() */
-		if (!tx_load(info, info->tx_buf, info->tx_count))
-			goto cleanup;
-		info->tx_count = 0;
-	}
-
-	if (tx_load(info, buf, count))
-		ret = count;
-
-cleanup:
-	spin_unlock_irqrestore(&info->lock, flags);
-	DBGINFO(("%s write rc=%d\n", info->device_name, ret));
-	return ret;
-}
-
-static int put_char(struct tty_struct *tty, unsigned char ch)
-{
-	struct slgt_info *info = tty->driver_data;
-	unsigned long flags;
-	int ret = 0;
-
-	if (sanity_check(info, tty->name, "put_char"))
-		return 0;
-	DBGINFO(("%s put_char(%d)\n", info->device_name, ch));
-	if (!info->tx_buf)
-		return 0;
-	spin_lock_irqsave(&info->lock,flags);
-	if (info->tx_count < info->max_frame_size) {
-		info->tx_buf[info->tx_count++] = ch;
-		ret = 1;
-	}
-	spin_unlock_irqrestore(&info->lock,flags);
-	return ret;
-}
-
-static void send_xchar(struct tty_struct *tty, char ch)
-{
-	struct slgt_info *info = tty->driver_data;
-	unsigned long flags;
-
-	if (sanity_check(info, tty->name, "send_xchar"))
-		return;
-	DBGINFO(("%s send_xchar(%d)\n", info->device_name, ch));
-	info->x_char = ch;
-	if (ch) {
-		spin_lock_irqsave(&info->lock,flags);
-		if (!info->tx_enabled)
-		 	tx_start(info);
-		spin_unlock_irqrestore(&info->lock,flags);
-	}
-}
-
-static void wait_until_sent(struct tty_struct *tty, int timeout)
-{
-	struct slgt_info *info = tty->driver_data;
-	unsigned long orig_jiffies, char_time;
-
-	if (!info )
-		return;
-	if (sanity_check(info, tty->name, "wait_until_sent"))
-		return;
-	DBGINFO(("%s wait_until_sent entry\n", info->device_name));
-	if (!(info->port.flags & ASYNC_INITIALIZED))
-		goto exit;
-
-	orig_jiffies = jiffies;
-
-	/* Set check interval to 1/5 of estimated time to
-	 * send a character, and make it at least 1. The check
-	 * interval should also be less than the timeout.
-	 * Note: use tight timings here to satisfy the NIST-PCTS.
-	 */
-
-	if (info->params.data_rate) {
-	       	char_time = info->timeout/(32 * 5);
-		if (!char_time)
-			char_time++;
-	} else
-		char_time = 1;
-
-	if (timeout)
-		char_time = min_t(unsigned long, char_time, timeout);
-
-	while (info->tx_active) {
-		msleep_interruptible(jiffies_to_msecs(char_time));
-		if (signal_pending(current))
-			break;
-		if (timeout && time_after(jiffies, orig_jiffies + timeout))
-			break;
-	}
-exit:
-	DBGINFO(("%s wait_until_sent exit\n", info->device_name));
-}
-
-static int write_room(struct tty_struct *tty)
-{
-	struct slgt_info *info = tty->driver_data;
-	int ret;
-
-	if (sanity_check(info, tty->name, "write_room"))
-		return 0;
-	ret = (info->tx_active) ? 0 : HDLC_MAX_FRAME_SIZE;
-	DBGINFO(("%s write_room=%d\n", info->device_name, ret));
-	return ret;
-}
-
-static void flush_chars(struct tty_struct *tty)
-{
-	struct slgt_info *info = tty->driver_data;
-	unsigned long flags;
-
-	if (sanity_check(info, tty->name, "flush_chars"))
-		return;
-	DBGINFO(("%s flush_chars entry tx_count=%d\n", info->device_name, info->tx_count));
-
-	if (info->tx_count <= 0 || tty->stopped ||
-	    tty->hw_stopped || !info->tx_buf)
-		return;
-
-	DBGINFO(("%s flush_chars start transmit\n", info->device_name));
-
-	spin_lock_irqsave(&info->lock,flags);
-	if (info->tx_count && tx_load(info, info->tx_buf, info->tx_count))
-		info->tx_count = 0;
-	spin_unlock_irqrestore(&info->lock,flags);
-}
-
-static void flush_buffer(struct tty_struct *tty)
-{
-	struct slgt_info *info = tty->driver_data;
-	unsigned long flags;
-
-	if (sanity_check(info, tty->name, "flush_buffer"))
-		return;
-	DBGINFO(("%s flush_buffer\n", info->device_name));
-
-	spin_lock_irqsave(&info->lock, flags);
-	info->tx_count = 0;
-	spin_unlock_irqrestore(&info->lock, flags);
-
-	tty_wakeup(tty);
-}
-
-/*
- * throttle (stop) transmitter
- */
-static void tx_hold(struct tty_struct *tty)
-{
-	struct slgt_info *info = tty->driver_data;
-	unsigned long flags;
-
-	if (sanity_check(info, tty->name, "tx_hold"))
-		return;
-	DBGINFO(("%s tx_hold\n", info->device_name));
-	spin_lock_irqsave(&info->lock,flags);
-	if (info->tx_enabled && info->params.mode == MGSL_MODE_ASYNC)
-	 	tx_stop(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-}
-
-/*
- * release (start) transmitter
- */
-static void tx_release(struct tty_struct *tty)
-{
-	struct slgt_info *info = tty->driver_data;
-	unsigned long flags;
-
-	if (sanity_check(info, tty->name, "tx_release"))
-		return;
-	DBGINFO(("%s tx_release\n", info->device_name));
-	spin_lock_irqsave(&info->lock, flags);
-	if (info->tx_count && tx_load(info, info->tx_buf, info->tx_count))
-		info->tx_count = 0;
-	spin_unlock_irqrestore(&info->lock, flags);
-}
-
-/*
- * Service an IOCTL request
- *
- * Arguments
- *
- * 	tty	pointer to tty instance data
- * 	cmd	IOCTL command code
- * 	arg	command argument/context
- *
- * Return 0 if success, otherwise error code
- */
-static int ioctl(struct tty_struct *tty,
-		 unsigned int cmd, unsigned long arg)
-{
-	struct slgt_info *info = tty->driver_data;
-	void __user *argp = (void __user *)arg;
-	int ret;
-
-	if (sanity_check(info, tty->name, "ioctl"))
-		return -ENODEV;
-	DBGINFO(("%s ioctl() cmd=%08X\n", info->device_name, cmd));
-
-	if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
-	    (cmd != TIOCMIWAIT)) {
-		if (tty->flags & (1 << TTY_IO_ERROR))
-		    return -EIO;
-	}
-
-	switch (cmd) {
-	case MGSL_IOCWAITEVENT:
-		return wait_mgsl_event(info, argp);
-	case TIOCMIWAIT:
-		return modem_input_wait(info,(int)arg);
-	case MGSL_IOCSGPIO:
-		return set_gpio(info, argp);
-	case MGSL_IOCGGPIO:
-		return get_gpio(info, argp);
-	case MGSL_IOCWAITGPIO:
-		return wait_gpio(info, argp);
-	case MGSL_IOCGXSYNC:
-		return get_xsync(info, argp);
-	case MGSL_IOCSXSYNC:
-		return set_xsync(info, (int)arg);
-	case MGSL_IOCGXCTRL:
-		return get_xctrl(info, argp);
-	case MGSL_IOCSXCTRL:
-		return set_xctrl(info, (int)arg);
-	}
-	mutex_lock(&info->port.mutex);
-	switch (cmd) {
-	case MGSL_IOCGPARAMS:
-		ret = get_params(info, argp);
-		break;
-	case MGSL_IOCSPARAMS:
-		ret = set_params(info, argp);
-		break;
-	case MGSL_IOCGTXIDLE:
-		ret = get_txidle(info, argp);
-		break;
-	case MGSL_IOCSTXIDLE:
-		ret = set_txidle(info, (int)arg);
-		break;
-	case MGSL_IOCTXENABLE:
-		ret = tx_enable(info, (int)arg);
-		break;
-	case MGSL_IOCRXENABLE:
-		ret = rx_enable(info, (int)arg);
-		break;
-	case MGSL_IOCTXABORT:
-		ret = tx_abort(info);
-		break;
-	case MGSL_IOCGSTATS:
-		ret = get_stats(info, argp);
-		break;
-	case MGSL_IOCGIF:
-		ret = get_interface(info, argp);
-		break;
-	case MGSL_IOCSIF:
-		ret = set_interface(info,(int)arg);
-		break;
-	default:
-		ret = -ENOIOCTLCMD;
-	}
-	mutex_unlock(&info->port.mutex);
-	return ret;
-}
-
-static int get_icount(struct tty_struct *tty,
-				struct serial_icounter_struct *icount)
-
-{
-	struct slgt_info *info = tty->driver_data;
-	struct mgsl_icount cnow;	/* kernel counter temps */
-	unsigned long flags;
-
-	spin_lock_irqsave(&info->lock,flags);
-	cnow = info->icount;
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	icount->cts = cnow.cts;
-	icount->dsr = cnow.dsr;
-	icount->rng = cnow.rng;
-	icount->dcd = cnow.dcd;
-	icount->rx = cnow.rx;
-	icount->tx = cnow.tx;
-	icount->frame = cnow.frame;
-	icount->overrun = cnow.overrun;
-	icount->parity = cnow.parity;
-	icount->brk = cnow.brk;
-	icount->buf_overrun = cnow.buf_overrun;
-
-	return 0;
-}
-
-/*
- * support for 32 bit ioctl calls on 64 bit systems
- */
-#ifdef CONFIG_COMPAT
-static long get_params32(struct slgt_info *info, struct MGSL_PARAMS32 __user *user_params)
-{
-	struct MGSL_PARAMS32 tmp_params;
-
-	DBGINFO(("%s get_params32\n", info->device_name));
-	memset(&tmp_params, 0, sizeof(tmp_params));
-	tmp_params.mode            = (compat_ulong_t)info->params.mode;
-	tmp_params.loopback        = info->params.loopback;
-	tmp_params.flags           = info->params.flags;
-	tmp_params.encoding        = info->params.encoding;
-	tmp_params.clock_speed     = (compat_ulong_t)info->params.clock_speed;
-	tmp_params.addr_filter     = info->params.addr_filter;
-	tmp_params.crc_type        = info->params.crc_type;
-	tmp_params.preamble_length = info->params.preamble_length;
-	tmp_params.preamble        = info->params.preamble;
-	tmp_params.data_rate       = (compat_ulong_t)info->params.data_rate;
-	tmp_params.data_bits       = info->params.data_bits;
-	tmp_params.stop_bits       = info->params.stop_bits;
-	tmp_params.parity          = info->params.parity;
-	if (copy_to_user(user_params, &tmp_params, sizeof(struct MGSL_PARAMS32)))
-		return -EFAULT;
-	return 0;
-}
-
-static long set_params32(struct slgt_info *info, struct MGSL_PARAMS32 __user *new_params)
-{
-	struct MGSL_PARAMS32 tmp_params;
-
-	DBGINFO(("%s set_params32\n", info->device_name));
-	if (copy_from_user(&tmp_params, new_params, sizeof(struct MGSL_PARAMS32)))
-		return -EFAULT;
-
-	spin_lock(&info->lock);
-	if (tmp_params.mode == MGSL_MODE_BASE_CLOCK) {
-		info->base_clock = tmp_params.clock_speed;
-	} else {
-		info->params.mode            = tmp_params.mode;
-		info->params.loopback        = tmp_params.loopback;
-		info->params.flags           = tmp_params.flags;
-		info->params.encoding        = tmp_params.encoding;
-		info->params.clock_speed     = tmp_params.clock_speed;
-		info->params.addr_filter     = tmp_params.addr_filter;
-		info->params.crc_type        = tmp_params.crc_type;
-		info->params.preamble_length = tmp_params.preamble_length;
-		info->params.preamble        = tmp_params.preamble;
-		info->params.data_rate       = tmp_params.data_rate;
-		info->params.data_bits       = tmp_params.data_bits;
-		info->params.stop_bits       = tmp_params.stop_bits;
-		info->params.parity          = tmp_params.parity;
-	}
-	spin_unlock(&info->lock);
-
-	program_hw(info);
-
-	return 0;
-}
-
-static long slgt_compat_ioctl(struct tty_struct *tty,
-			 unsigned int cmd, unsigned long arg)
-{
-	struct slgt_info *info = tty->driver_data;
-	int rc = -ENOIOCTLCMD;
-
-	if (sanity_check(info, tty->name, "compat_ioctl"))
-		return -ENODEV;
-	DBGINFO(("%s compat_ioctl() cmd=%08X\n", info->device_name, cmd));
-
-	switch (cmd) {
-
-	case MGSL_IOCSPARAMS32:
-		rc = set_params32(info, compat_ptr(arg));
-		break;
-
-	case MGSL_IOCGPARAMS32:
-		rc = get_params32(info, compat_ptr(arg));
-		break;
-
-	case MGSL_IOCGPARAMS:
-	case MGSL_IOCSPARAMS:
-	case MGSL_IOCGTXIDLE:
-	case MGSL_IOCGSTATS:
-	case MGSL_IOCWAITEVENT:
-	case MGSL_IOCGIF:
-	case MGSL_IOCSGPIO:
-	case MGSL_IOCGGPIO:
-	case MGSL_IOCWAITGPIO:
-	case MGSL_IOCGXSYNC:
-	case MGSL_IOCGXCTRL:
-	case MGSL_IOCSTXIDLE:
-	case MGSL_IOCTXENABLE:
-	case MGSL_IOCRXENABLE:
-	case MGSL_IOCTXABORT:
-	case TIOCMIWAIT:
-	case MGSL_IOCSIF:
-	case MGSL_IOCSXSYNC:
-	case MGSL_IOCSXCTRL:
-		rc = ioctl(tty, cmd, arg);
-		break;
-	}
-
-	DBGINFO(("%s compat_ioctl() cmd=%08X rc=%d\n", info->device_name, cmd, rc));
-	return rc;
-}
-#else
-#define slgt_compat_ioctl NULL
-#endif /* ifdef CONFIG_COMPAT */
-
-/*
- * proc fs support
- */
-static inline void line_info(struct seq_file *m, struct slgt_info *info)
-{
-	char stat_buf[30];
-	unsigned long flags;
-
-	seq_printf(m, "%s: IO=%08X IRQ=%d MaxFrameSize=%u\n",
-		      info->device_name, info->phys_reg_addr,
-		      info->irq_level, info->max_frame_size);
-
-	/* output current serial signal states */
-	spin_lock_irqsave(&info->lock,flags);
-	get_signals(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	stat_buf[0] = 0;
-	stat_buf[1] = 0;
-	if (info->signals & SerialSignal_RTS)
-		strcat(stat_buf, "|RTS");
-	if (info->signals & SerialSignal_CTS)
-		strcat(stat_buf, "|CTS");
-	if (info->signals & SerialSignal_DTR)
-		strcat(stat_buf, "|DTR");
-	if (info->signals & SerialSignal_DSR)
-		strcat(stat_buf, "|DSR");
-	if (info->signals & SerialSignal_DCD)
-		strcat(stat_buf, "|CD");
-	if (info->signals & SerialSignal_RI)
-		strcat(stat_buf, "|RI");
-
-	if (info->params.mode != MGSL_MODE_ASYNC) {
-		seq_printf(m, "\tHDLC txok:%d rxok:%d",
-			       info->icount.txok, info->icount.rxok);
-		if (info->icount.txunder)
-			seq_printf(m, " txunder:%d", info->icount.txunder);
-		if (info->icount.txabort)
-			seq_printf(m, " txabort:%d", info->icount.txabort);
-		if (info->icount.rxshort)
-			seq_printf(m, " rxshort:%d", info->icount.rxshort);
-		if (info->icount.rxlong)
-			seq_printf(m, " rxlong:%d", info->icount.rxlong);
-		if (info->icount.rxover)
-			seq_printf(m, " rxover:%d", info->icount.rxover);
-		if (info->icount.rxcrc)
-			seq_printf(m, " rxcrc:%d", info->icount.rxcrc);
-	} else {
-		seq_printf(m, "\tASYNC tx:%d rx:%d",
-			       info->icount.tx, info->icount.rx);
-		if (info->icount.frame)
-			seq_printf(m, " fe:%d", info->icount.frame);
-		if (info->icount.parity)
-			seq_printf(m, " pe:%d", info->icount.parity);
-		if (info->icount.brk)
-			seq_printf(m, " brk:%d", info->icount.brk);
-		if (info->icount.overrun)
-			seq_printf(m, " oe:%d", info->icount.overrun);
-	}
-
-	/* Append serial signal status to end */
-	seq_printf(m, " %s\n", stat_buf+1);
-
-	seq_printf(m, "\ttxactive=%d bh_req=%d bh_run=%d pending_bh=%x\n",
-		       info->tx_active,info->bh_requested,info->bh_running,
-		       info->pending_bh);
-}
-
-/* Called to print information about devices
- */
-static int synclink_gt_proc_show(struct seq_file *m, void *v)
-{
-	struct slgt_info *info;
-
-	seq_puts(m, "synclink_gt driver\n");
-
-	info = slgt_device_list;
-	while( info ) {
-		line_info(m, info);
-		info = info->next_device;
-	}
-	return 0;
-}
-
-static int synclink_gt_proc_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, synclink_gt_proc_show, NULL);
-}
-
-static const struct file_operations synclink_gt_proc_fops = {
-	.owner		= THIS_MODULE,
-	.open		= synclink_gt_proc_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-
-/*
- * return count of bytes in transmit buffer
- */
-static int chars_in_buffer(struct tty_struct *tty)
-{
-	struct slgt_info *info = tty->driver_data;
-	int count;
-	if (sanity_check(info, tty->name, "chars_in_buffer"))
-		return 0;
-	count = tbuf_bytes(info);
-	DBGINFO(("%s chars_in_buffer()=%d\n", info->device_name, count));
-	return count;
-}
-
-/*
- * signal remote device to throttle send data (our receive data)
- */
-static void throttle(struct tty_struct * tty)
-{
-	struct slgt_info *info = tty->driver_data;
-	unsigned long flags;
-
-	if (sanity_check(info, tty->name, "throttle"))
-		return;
-	DBGINFO(("%s throttle\n", info->device_name));
-	if (I_IXOFF(tty))
-		send_xchar(tty, STOP_CHAR(tty));
- 	if (tty->termios->c_cflag & CRTSCTS) {
-		spin_lock_irqsave(&info->lock,flags);
-		info->signals &= ~SerialSignal_RTS;
-	 	set_signals(info);
-		spin_unlock_irqrestore(&info->lock,flags);
-	}
-}
-
-/*
- * signal remote device to stop throttling send data (our receive data)
- */
-static void unthrottle(struct tty_struct * tty)
-{
-	struct slgt_info *info = tty->driver_data;
-	unsigned long flags;
-
-	if (sanity_check(info, tty->name, "unthrottle"))
-		return;
-	DBGINFO(("%s unthrottle\n", info->device_name));
-	if (I_IXOFF(tty)) {
-		if (info->x_char)
-			info->x_char = 0;
-		else
-			send_xchar(tty, START_CHAR(tty));
-	}
- 	if (tty->termios->c_cflag & CRTSCTS) {
-		spin_lock_irqsave(&info->lock,flags);
-		info->signals |= SerialSignal_RTS;
-	 	set_signals(info);
-		spin_unlock_irqrestore(&info->lock,flags);
-	}
-}
-
-/*
- * set or clear transmit break condition
- * break_state	-1=set break condition, 0=clear
- */
-static int set_break(struct tty_struct *tty, int break_state)
-{
-	struct slgt_info *info = tty->driver_data;
-	unsigned short value;
-	unsigned long flags;
-
-	if (sanity_check(info, tty->name, "set_break"))
-		return -EINVAL;
-	DBGINFO(("%s set_break(%d)\n", info->device_name, break_state));
-
-	spin_lock_irqsave(&info->lock,flags);
-	value = rd_reg16(info, TCR);
- 	if (break_state == -1)
-		value |= BIT6;
-	else
-		value &= ~BIT6;
-	wr_reg16(info, TCR, value);
-	spin_unlock_irqrestore(&info->lock,flags);
-	return 0;
-}
-
-#if SYNCLINK_GENERIC_HDLC
-
-/**
- * called by generic HDLC layer when protocol selected (PPP, frame relay, etc.)
- * set encoding and frame check sequence (FCS) options
- *
- * dev       pointer to network device structure
- * encoding  serial encoding setting
- * parity    FCS setting
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
-			  unsigned short parity)
-{
-	struct slgt_info *info = dev_to_port(dev);
-	unsigned char  new_encoding;
-	unsigned short new_crctype;
-
-	/* return error if TTY interface open */
-	if (info->port.count)
-		return -EBUSY;
-
-	DBGINFO(("%s hdlcdev_attach\n", info->device_name));
-
-	switch (encoding)
-	{
-	case ENCODING_NRZ:        new_encoding = HDLC_ENCODING_NRZ; break;
-	case ENCODING_NRZI:       new_encoding = HDLC_ENCODING_NRZI_SPACE; break;
-	case ENCODING_FM_MARK:    new_encoding = HDLC_ENCODING_BIPHASE_MARK; break;
-	case ENCODING_FM_SPACE:   new_encoding = HDLC_ENCODING_BIPHASE_SPACE; break;
-	case ENCODING_MANCHESTER: new_encoding = HDLC_ENCODING_BIPHASE_LEVEL; break;
-	default: return -EINVAL;
-	}
-
-	switch (parity)
-	{
-	case PARITY_NONE:            new_crctype = HDLC_CRC_NONE; break;
-	case PARITY_CRC16_PR1_CCITT: new_crctype = HDLC_CRC_16_CCITT; break;
-	case PARITY_CRC32_PR1_CCITT: new_crctype = HDLC_CRC_32_CCITT; break;
-	default: return -EINVAL;
-	}
-
-	info->params.encoding = new_encoding;
-	info->params.crc_type = new_crctype;
-
-	/* if network interface up, reprogram hardware */
-	if (info->netcount)
-		program_hw(info);
-
-	return 0;
-}
-
-/**
- * called by generic HDLC layer to send frame
- *
- * skb  socket buffer containing HDLC frame
- * dev  pointer to network device structure
- */
-static netdev_tx_t hdlcdev_xmit(struct sk_buff *skb,
-				      struct net_device *dev)
-{
-	struct slgt_info *info = dev_to_port(dev);
-	unsigned long flags;
-
-	DBGINFO(("%s hdlc_xmit\n", dev->name));
-
-	if (!skb->len)
-		return NETDEV_TX_OK;
-
-	/* stop sending until this frame completes */
-	netif_stop_queue(dev);
-
-	/* update network statistics */
-	dev->stats.tx_packets++;
-	dev->stats.tx_bytes += skb->len;
-
-	/* save start time for transmit timeout detection */
-	dev->trans_start = jiffies;
-
-	spin_lock_irqsave(&info->lock, flags);
-	tx_load(info, skb->data, skb->len);
-	spin_unlock_irqrestore(&info->lock, flags);
-
-	/* done with socket buffer, so free it */
-	dev_kfree_skb(skb);
-
-	return NETDEV_TX_OK;
-}
-
-/**
- * called by network layer when interface enabled
- * claim resources and initialize hardware
- *
- * dev  pointer to network device structure
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_open(struct net_device *dev)
-{
-	struct slgt_info *info = dev_to_port(dev);
-	int rc;
-	unsigned long flags;
-
-	if (!try_module_get(THIS_MODULE))
-		return -EBUSY;
-
-	DBGINFO(("%s hdlcdev_open\n", dev->name));
-
-	/* generic HDLC layer open processing */
-	if ((rc = hdlc_open(dev)))
-		return rc;
-
-	/* arbitrate between network and tty opens */
-	spin_lock_irqsave(&info->netlock, flags);
-	if (info->port.count != 0 || info->netcount != 0) {
-		DBGINFO(("%s hdlc_open busy\n", dev->name));
-		spin_unlock_irqrestore(&info->netlock, flags);
-		return -EBUSY;
-	}
-	info->netcount=1;
-	spin_unlock_irqrestore(&info->netlock, flags);
-
-	/* claim resources and init adapter */
-	if ((rc = startup(info)) != 0) {
-		spin_lock_irqsave(&info->netlock, flags);
-		info->netcount=0;
-		spin_unlock_irqrestore(&info->netlock, flags);
-		return rc;
-	}
-
-	/* assert DTR and RTS, apply hardware settings */
-	info->signals |= SerialSignal_RTS + SerialSignal_DTR;
-	program_hw(info);
-
-	/* enable network layer transmit */
-	dev->trans_start = jiffies;
-	netif_start_queue(dev);
-
-	/* inform generic HDLC layer of current DCD status */
-	spin_lock_irqsave(&info->lock, flags);
-	get_signals(info);
-	spin_unlock_irqrestore(&info->lock, flags);
-	if (info->signals & SerialSignal_DCD)
-		netif_carrier_on(dev);
-	else
-		netif_carrier_off(dev);
-	return 0;
-}
-
-/**
- * called by network layer when interface is disabled
- * shutdown hardware and release resources
- *
- * dev  pointer to network device structure
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_close(struct net_device *dev)
-{
-	struct slgt_info *info = dev_to_port(dev);
-	unsigned long flags;
-
-	DBGINFO(("%s hdlcdev_close\n", dev->name));
-
-	netif_stop_queue(dev);
-
-	/* shutdown adapter and release resources */
-	shutdown(info);
-
-	hdlc_close(dev);
-
-	spin_lock_irqsave(&info->netlock, flags);
-	info->netcount=0;
-	spin_unlock_irqrestore(&info->netlock, flags);
-
-	module_put(THIS_MODULE);
-	return 0;
-}
-
-/**
- * called by network layer to process IOCTL call to network device
- *
- * dev  pointer to network device structure
- * ifr  pointer to network interface request structure
- * cmd  IOCTL command code
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
-{
-	const size_t size = sizeof(sync_serial_settings);
-	sync_serial_settings new_line;
-	sync_serial_settings __user *line = ifr->ifr_settings.ifs_ifsu.sync;
-	struct slgt_info *info = dev_to_port(dev);
-	unsigned int flags;
-
-	DBGINFO(("%s hdlcdev_ioctl\n", dev->name));
-
-	/* return error if TTY interface open */
-	if (info->port.count)
-		return -EBUSY;
-
-	if (cmd != SIOCWANDEV)
-		return hdlc_ioctl(dev, ifr, cmd);
-
-	memset(&new_line, 0, sizeof(new_line));
-
-	switch(ifr->ifr_settings.type) {
-	case IF_GET_IFACE: /* return current sync_serial_settings */
-
-		ifr->ifr_settings.type = IF_IFACE_SYNC_SERIAL;
-		if (ifr->ifr_settings.size < size) {
-			ifr->ifr_settings.size = size; /* data size wanted */
-			return -ENOBUFS;
-		}
-
-		flags = info->params.flags & (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL |
-					      HDLC_FLAG_RXC_BRG    | HDLC_FLAG_RXC_TXCPIN |
-					      HDLC_FLAG_TXC_TXCPIN | HDLC_FLAG_TXC_DPLL |
-					      HDLC_FLAG_TXC_BRG    | HDLC_FLAG_TXC_RXCPIN);
-
-		switch (flags){
-		case (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_TXCPIN): new_line.clock_type = CLOCK_EXT; break;
-		case (HDLC_FLAG_RXC_BRG    | HDLC_FLAG_TXC_BRG):    new_line.clock_type = CLOCK_INT; break;
-		case (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_BRG):    new_line.clock_type = CLOCK_TXINT; break;
-		case (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_RXCPIN): new_line.clock_type = CLOCK_TXFROMRX; break;
-		default: new_line.clock_type = CLOCK_DEFAULT;
-		}
-
-		new_line.clock_rate = info->params.clock_speed;
-		new_line.loopback   = info->params.loopback ? 1:0;
-
-		if (copy_to_user(line, &new_line, size))
-			return -EFAULT;
-		return 0;
-
-	case IF_IFACE_SYNC_SERIAL: /* set sync_serial_settings */
-
-		if(!capable(CAP_NET_ADMIN))
-			return -EPERM;
-		if (copy_from_user(&new_line, line, size))
-			return -EFAULT;
-
-		switch (new_line.clock_type)
-		{
-		case CLOCK_EXT:      flags = HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_TXCPIN; break;
-		case CLOCK_TXFROMRX: flags = HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_RXCPIN; break;
-		case CLOCK_INT:      flags = HDLC_FLAG_RXC_BRG    | HDLC_FLAG_TXC_BRG;    break;
-		case CLOCK_TXINT:    flags = HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_BRG;    break;
-		case CLOCK_DEFAULT:  flags = info->params.flags &
-					     (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL |
-					      HDLC_FLAG_RXC_BRG    | HDLC_FLAG_RXC_TXCPIN |
-					      HDLC_FLAG_TXC_TXCPIN | HDLC_FLAG_TXC_DPLL |
-					      HDLC_FLAG_TXC_BRG    | HDLC_FLAG_TXC_RXCPIN); break;
-		default: return -EINVAL;
-		}
-
-		if (new_line.loopback != 0 && new_line.loopback != 1)
-			return -EINVAL;
-
-		info->params.flags &= ~(HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL |
-					HDLC_FLAG_RXC_BRG    | HDLC_FLAG_RXC_TXCPIN |
-					HDLC_FLAG_TXC_TXCPIN | HDLC_FLAG_TXC_DPLL |
-					HDLC_FLAG_TXC_BRG    | HDLC_FLAG_TXC_RXCPIN);
-		info->params.flags |= flags;
-
-		info->params.loopback = new_line.loopback;
-
-		if (flags & (HDLC_FLAG_RXC_BRG | HDLC_FLAG_TXC_BRG))
-			info->params.clock_speed = new_line.clock_rate;
-		else
-			info->params.clock_speed = 0;
-
-		/* if network interface up, reprogram hardware */
-		if (info->netcount)
-			program_hw(info);
-		return 0;
-
-	default:
-		return hdlc_ioctl(dev, ifr, cmd);
-	}
-}
-
-/**
- * called by network layer when transmit timeout is detected
- *
- * dev  pointer to network device structure
- */
-static void hdlcdev_tx_timeout(struct net_device *dev)
-{
-	struct slgt_info *info = dev_to_port(dev);
-	unsigned long flags;
-
-	DBGINFO(("%s hdlcdev_tx_timeout\n", dev->name));
-
-	dev->stats.tx_errors++;
-	dev->stats.tx_aborted_errors++;
-
-	spin_lock_irqsave(&info->lock,flags);
-	tx_stop(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	netif_wake_queue(dev);
-}
-
-/**
- * called by device driver when transmit completes
- * reenable network layer transmit if stopped
- *
- * info  pointer to device instance information
- */
-static void hdlcdev_tx_done(struct slgt_info *info)
-{
-	if (netif_queue_stopped(info->netdev))
-		netif_wake_queue(info->netdev);
-}
-
-/**
- * called by device driver when frame received
- * pass frame to network layer
- *
- * info  pointer to device instance information
- * buf   pointer to buffer contianing frame data
- * size  count of data bytes in buf
- */
-static void hdlcdev_rx(struct slgt_info *info, char *buf, int size)
-{
-	struct sk_buff *skb = dev_alloc_skb(size);
-	struct net_device *dev = info->netdev;
-
-	DBGINFO(("%s hdlcdev_rx\n", dev->name));
-
-	if (skb == NULL) {
-		DBGERR(("%s: can't alloc skb, drop packet\n", dev->name));
-		dev->stats.rx_dropped++;
-		return;
-	}
-
-	memcpy(skb_put(skb, size), buf, size);
-
-	skb->protocol = hdlc_type_trans(skb, dev);
-
-	dev->stats.rx_packets++;
-	dev->stats.rx_bytes += size;
-
-	netif_rx(skb);
-}
-
-static const struct net_device_ops hdlcdev_ops = {
-	.ndo_open       = hdlcdev_open,
-	.ndo_stop       = hdlcdev_close,
-	.ndo_change_mtu = hdlc_change_mtu,
-	.ndo_start_xmit = hdlc_start_xmit,
-	.ndo_do_ioctl   = hdlcdev_ioctl,
-	.ndo_tx_timeout = hdlcdev_tx_timeout,
-};
-
-/**
- * called by device driver when adding device instance
- * do generic HDLC initialization
- *
- * info  pointer to device instance information
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_init(struct slgt_info *info)
-{
-	int rc;
-	struct net_device *dev;
-	hdlc_device *hdlc;
-
-	/* allocate and initialize network and HDLC layer objects */
-
-	if (!(dev = alloc_hdlcdev(info))) {
-		printk(KERN_ERR "%s hdlc device alloc failure\n", info->device_name);
-		return -ENOMEM;
-	}
-
-	/* for network layer reporting purposes only */
-	dev->mem_start = info->phys_reg_addr;
-	dev->mem_end   = info->phys_reg_addr + SLGT_REG_SIZE - 1;
-	dev->irq       = info->irq_level;
-
-	/* network layer callbacks and settings */
-	dev->netdev_ops	    = &hdlcdev_ops;
-	dev->watchdog_timeo = 10 * HZ;
-	dev->tx_queue_len   = 50;
-
-	/* generic HDLC layer callbacks and settings */
-	hdlc         = dev_to_hdlc(dev);
-	hdlc->attach = hdlcdev_attach;
-	hdlc->xmit   = hdlcdev_xmit;
-
-	/* register objects with HDLC layer */
-	if ((rc = register_hdlc_device(dev))) {
-		printk(KERN_WARNING "%s:unable to register hdlc device\n",__FILE__);
-		free_netdev(dev);
-		return rc;
-	}
-
-	info->netdev = dev;
-	return 0;
-}
-
-/**
- * called by device driver when removing device instance
- * do generic HDLC cleanup
- *
- * info  pointer to device instance information
- */
-static void hdlcdev_exit(struct slgt_info *info)
-{
-	unregister_hdlc_device(info->netdev);
-	free_netdev(info->netdev);
-	info->netdev = NULL;
-}
-
-#endif /* ifdef CONFIG_HDLC */
-
-/*
- * get async data from rx DMA buffers
- */
-static void rx_async(struct slgt_info *info)
-{
- 	struct tty_struct *tty = info->port.tty;
- 	struct mgsl_icount *icount = &info->icount;
-	unsigned int start, end;
-	unsigned char *p;
-	unsigned char status;
-	struct slgt_desc *bufs = info->rbufs;
-	int i, count;
-	int chars = 0;
-	int stat;
-	unsigned char ch;
-
-	start = end = info->rbuf_current;
-
-	while(desc_complete(bufs[end])) {
-		count = desc_count(bufs[end]) - info->rbuf_index;
-		p     = bufs[end].buf + info->rbuf_index;
-
-		DBGISR(("%s rx_async count=%d\n", info->device_name, count));
-		DBGDATA(info, p, count, "rx");
-
-		for(i=0 ; i < count; i+=2, p+=2) {
-			ch = *p;
-			icount->rx++;
-
-			stat = 0;
-
-			if ((status = *(p+1) & (BIT1 + BIT0))) {
-				if (status & BIT1)
-					icount->parity++;
-				else if (status & BIT0)
-					icount->frame++;
-				/* discard char if tty control flags say so */
-				if (status & info->ignore_status_mask)
-					continue;
-				if (status & BIT1)
-					stat = TTY_PARITY;
-				else if (status & BIT0)
-					stat = TTY_FRAME;
-			}
-			if (tty) {
-				tty_insert_flip_char(tty, ch, stat);
-				chars++;
-			}
-		}
-
-		if (i < count) {
-			/* receive buffer not completed */
-			info->rbuf_index += i;
-			mod_timer(&info->rx_timer, jiffies + 1);
-			break;
-		}
-
-		info->rbuf_index = 0;
-		free_rbufs(info, end, end);
-
-		if (++end == info->rbuf_count)
-			end = 0;
-
-		/* if entire list searched then no frame available */
-		if (end == start)
-			break;
-	}
-
-	if (tty && chars)
-		tty_flip_buffer_push(tty);
-}
-
-/*
- * return next bottom half action to perform
- */
-static int bh_action(struct slgt_info *info)
-{
-	unsigned long flags;
-	int rc;
-
-	spin_lock_irqsave(&info->lock,flags);
-
-	if (info->pending_bh & BH_RECEIVE) {
-		info->pending_bh &= ~BH_RECEIVE;
-		rc = BH_RECEIVE;
-	} else if (info->pending_bh & BH_TRANSMIT) {
-		info->pending_bh &= ~BH_TRANSMIT;
-		rc = BH_TRANSMIT;
-	} else if (info->pending_bh & BH_STATUS) {
-		info->pending_bh &= ~BH_STATUS;
-		rc = BH_STATUS;
-	} else {
-		/* Mark BH routine as complete */
-		info->bh_running = false;
-		info->bh_requested = false;
-		rc = 0;
-	}
-
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	return rc;
-}
-
-/*
- * perform bottom half processing
- */
-static void bh_handler(struct work_struct *work)
-{
-	struct slgt_info *info = container_of(work, struct slgt_info, task);
-	int action;
-
-	if (!info)
-		return;
-	info->bh_running = true;
-
-	while((action = bh_action(info))) {
-		switch (action) {
-		case BH_RECEIVE:
-			DBGBH(("%s bh receive\n", info->device_name));
-			switch(info->params.mode) {
-			case MGSL_MODE_ASYNC:
-				rx_async(info);
-				break;
-			case MGSL_MODE_HDLC:
-				while(rx_get_frame(info));
-				break;
-			case MGSL_MODE_RAW:
-			case MGSL_MODE_MONOSYNC:
-			case MGSL_MODE_BISYNC:
-			case MGSL_MODE_XSYNC:
-				while(rx_get_buf(info));
-				break;
-			}
-			/* restart receiver if rx DMA buffers exhausted */
-			if (info->rx_restart)
-				rx_start(info);
-			break;
-		case BH_TRANSMIT:
-			bh_transmit(info);
-			break;
-		case BH_STATUS:
-			DBGBH(("%s bh status\n", info->device_name));
-			info->ri_chkcount = 0;
-			info->dsr_chkcount = 0;
-			info->dcd_chkcount = 0;
-			info->cts_chkcount = 0;
-			break;
-		default:
-			DBGBH(("%s unknown action\n", info->device_name));
-			break;
-		}
-	}
-	DBGBH(("%s bh_handler exit\n", info->device_name));
-}
-
-static void bh_transmit(struct slgt_info *info)
-{
-	struct tty_struct *tty = info->port.tty;
-
-	DBGBH(("%s bh_transmit\n", info->device_name));
-	if (tty)
-		tty_wakeup(tty);
-}
-
-static void dsr_change(struct slgt_info *info, unsigned short status)
-{
-	if (status & BIT3) {
-		info->signals |= SerialSignal_DSR;
-		info->input_signal_events.dsr_up++;
-	} else {
-		info->signals &= ~SerialSignal_DSR;
-		info->input_signal_events.dsr_down++;
-	}
-	DBGISR(("dsr_change %s signals=%04X\n", info->device_name, info->signals));
-	if ((info->dsr_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) {
-		slgt_irq_off(info, IRQ_DSR);
-		return;
-	}
-	info->icount.dsr++;
-	wake_up_interruptible(&info->status_event_wait_q);
-	wake_up_interruptible(&info->event_wait_q);
-	info->pending_bh |= BH_STATUS;
-}
-
-static void cts_change(struct slgt_info *info, unsigned short status)
-{
-	if (status & BIT2) {
-		info->signals |= SerialSignal_CTS;
-		info->input_signal_events.cts_up++;
-	} else {
-		info->signals &= ~SerialSignal_CTS;
-		info->input_signal_events.cts_down++;
-	}
-	DBGISR(("cts_change %s signals=%04X\n", info->device_name, info->signals));
-	if ((info->cts_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) {
-		slgt_irq_off(info, IRQ_CTS);
-		return;
-	}
-	info->icount.cts++;
-	wake_up_interruptible(&info->status_event_wait_q);
-	wake_up_interruptible(&info->event_wait_q);
-	info->pending_bh |= BH_STATUS;
-
-	if (info->port.flags & ASYNC_CTS_FLOW) {
-		if (info->port.tty) {
-			if (info->port.tty->hw_stopped) {
-				if (info->signals & SerialSignal_CTS) {
-		 			info->port.tty->hw_stopped = 0;
-					info->pending_bh |= BH_TRANSMIT;
-					return;
-				}
-			} else {
-				if (!(info->signals & SerialSignal_CTS))
-		 			info->port.tty->hw_stopped = 1;
-			}
-		}
-	}
-}
-
-static void dcd_change(struct slgt_info *info, unsigned short status)
-{
-	if (status & BIT1) {
-		info->signals |= SerialSignal_DCD;
-		info->input_signal_events.dcd_up++;
-	} else {
-		info->signals &= ~SerialSignal_DCD;
-		info->input_signal_events.dcd_down++;
-	}
-	DBGISR(("dcd_change %s signals=%04X\n", info->device_name, info->signals));
-	if ((info->dcd_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) {
-		slgt_irq_off(info, IRQ_DCD);
-		return;
-	}
-	info->icount.dcd++;
-#if SYNCLINK_GENERIC_HDLC
-	if (info->netcount) {
-		if (info->signals & SerialSignal_DCD)
-			netif_carrier_on(info->netdev);
-		else
-			netif_carrier_off(info->netdev);
-	}
-#endif
-	wake_up_interruptible(&info->status_event_wait_q);
-	wake_up_interruptible(&info->event_wait_q);
-	info->pending_bh |= BH_STATUS;
-
-	if (info->port.flags & ASYNC_CHECK_CD) {
-		if (info->signals & SerialSignal_DCD)
-			wake_up_interruptible(&info->port.open_wait);
-		else {
-			if (info->port.tty)
-				tty_hangup(info->port.tty);
-		}
-	}
-}
-
-static void ri_change(struct slgt_info *info, unsigned short status)
-{
-	if (status & BIT0) {
-		info->signals |= SerialSignal_RI;
-		info->input_signal_events.ri_up++;
-	} else {
-		info->signals &= ~SerialSignal_RI;
-		info->input_signal_events.ri_down++;
-	}
-	DBGISR(("ri_change %s signals=%04X\n", info->device_name, info->signals));
-	if ((info->ri_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) {
-		slgt_irq_off(info, IRQ_RI);
-		return;
-	}
-	info->icount.rng++;
-	wake_up_interruptible(&info->status_event_wait_q);
-	wake_up_interruptible(&info->event_wait_q);
-	info->pending_bh |= BH_STATUS;
-}
-
-static void isr_rxdata(struct slgt_info *info)
-{
-	unsigned int count = info->rbuf_fill_count;
-	unsigned int i = info->rbuf_fill_index;
-	unsigned short reg;
-
-	while (rd_reg16(info, SSR) & IRQ_RXDATA) {
-		reg = rd_reg16(info, RDR);
-		DBGISR(("isr_rxdata %s RDR=%04X\n", info->device_name, reg));
-		if (desc_complete(info->rbufs[i])) {
-			/* all buffers full */
-			rx_stop(info);
-			info->rx_restart = 1;
-			continue;
-		}
-		info->rbufs[i].buf[count++] = (unsigned char)reg;
-		/* async mode saves status byte to buffer for each data byte */
-		if (info->params.mode == MGSL_MODE_ASYNC)
-			info->rbufs[i].buf[count++] = (unsigned char)(reg >> 8);
-		if (count == info->rbuf_fill_level || (reg & BIT10)) {
-			/* buffer full or end of frame */
-			set_desc_count(info->rbufs[i], count);
-			set_desc_status(info->rbufs[i], BIT15 | (reg >> 8));
-			info->rbuf_fill_count = count = 0;
-			if (++i == info->rbuf_count)
-				i = 0;
-			info->pending_bh |= BH_RECEIVE;
-		}
-	}
-
-	info->rbuf_fill_index = i;
-	info->rbuf_fill_count = count;
-}
-
-static void isr_serial(struct slgt_info *info)
-{
-	unsigned short status = rd_reg16(info, SSR);
-
-	DBGISR(("%s isr_serial status=%04X\n", info->device_name, status));
-
-	wr_reg16(info, SSR, status); /* clear pending */
-
-	info->irq_occurred = true;
-
-	if (info->params.mode == MGSL_MODE_ASYNC) {
-		if (status & IRQ_TXIDLE) {
-			if (info->tx_active)
-				isr_txeom(info, status);
-		}
-		if (info->rx_pio && (status & IRQ_RXDATA))
-			isr_rxdata(info);
-		if ((status & IRQ_RXBREAK) && (status & RXBREAK)) {
-			info->icount.brk++;
-			/* process break detection if tty control allows */
-			if (info->port.tty) {
-				if (!(status & info->ignore_status_mask)) {
-					if (info->read_status_mask & MASK_BREAK) {
-						tty_insert_flip_char(info->port.tty, 0, TTY_BREAK);
-						if (info->port.flags & ASYNC_SAK)
-							do_SAK(info->port.tty);
-					}
-				}
-			}
-		}
-	} else {
-		if (status & (IRQ_TXIDLE + IRQ_TXUNDER))
-			isr_txeom(info, status);
-		if (info->rx_pio && (status & IRQ_RXDATA))
-			isr_rxdata(info);
-		if (status & IRQ_RXIDLE) {
-			if (status & RXIDLE)
-				info->icount.rxidle++;
-			else
-				info->icount.exithunt++;
-			wake_up_interruptible(&info->event_wait_q);
-		}
-
-		if (status & IRQ_RXOVER)
-			rx_start(info);
-	}
-
-	if (status & IRQ_DSR)
-		dsr_change(info, status);
-	if (status & IRQ_CTS)
-		cts_change(info, status);
-	if (status & IRQ_DCD)
-		dcd_change(info, status);
-	if (status & IRQ_RI)
-		ri_change(info, status);
-}
-
-static void isr_rdma(struct slgt_info *info)
-{
-	unsigned int status = rd_reg32(info, RDCSR);
-
-	DBGISR(("%s isr_rdma status=%08x\n", info->device_name, status));
-
-	/* RDCSR (rx DMA control/status)
-	 *
-	 * 31..07  reserved
-	 * 06      save status byte to DMA buffer
-	 * 05      error
-	 * 04      eol (end of list)
-	 * 03      eob (end of buffer)
-	 * 02      IRQ enable
-	 * 01      reset
-	 * 00      enable
-	 */
-	wr_reg32(info, RDCSR, status);	/* clear pending */
-
-	if (status & (BIT5 + BIT4)) {
-		DBGISR(("%s isr_rdma rx_restart=1\n", info->device_name));
-		info->rx_restart = true;
-	}
-	info->pending_bh |= BH_RECEIVE;
-}
-
-static void isr_tdma(struct slgt_info *info)
-{
-	unsigned int status = rd_reg32(info, TDCSR);
-
-	DBGISR(("%s isr_tdma status=%08x\n", info->device_name, status));
-
-	/* TDCSR (tx DMA control/status)
-	 *
-	 * 31..06  reserved
-	 * 05      error
-	 * 04      eol (end of list)
-	 * 03      eob (end of buffer)
-	 * 02      IRQ enable
-	 * 01      reset
-	 * 00      enable
-	 */
-	wr_reg32(info, TDCSR, status);	/* clear pending */
-
-	if (status & (BIT5 + BIT4 + BIT3)) {
-		// another transmit buffer has completed
-		// run bottom half to get more send data from user
-		info->pending_bh |= BH_TRANSMIT;
-	}
-}
-
-/*
- * return true if there are unsent tx DMA buffers, otherwise false
- *
- * if there are unsent buffers then info->tbuf_start
- * is set to index of first unsent buffer
- */
-static bool unsent_tbufs(struct slgt_info *info)
-{
-	unsigned int i = info->tbuf_current;
-	bool rc = false;
-
-	/*
-	 * search backwards from last loaded buffer (precedes tbuf_current)
-	 * for first unsent buffer (desc_count > 0)
-	 */
-
-	do {
-		if (i)
-			i--;
-		else
-			i = info->tbuf_count - 1;
-		if (!desc_count(info->tbufs[i]))
-			break;
-		info->tbuf_start = i;
-		rc = true;
-	} while (i != info->tbuf_current);
-
-	return rc;
-}
-
-static void isr_txeom(struct slgt_info *info, unsigned short status)
-{
-	DBGISR(("%s txeom status=%04x\n", info->device_name, status));
-
-	slgt_irq_off(info, IRQ_TXDATA + IRQ_TXIDLE + IRQ_TXUNDER);
-	tdma_reset(info);
-	if (status & IRQ_TXUNDER) {
-		unsigned short val = rd_reg16(info, TCR);
-		wr_reg16(info, TCR, (unsigned short)(val | BIT2)); /* set reset bit */
-		wr_reg16(info, TCR, val); /* clear reset bit */
-	}
-
-	if (info->tx_active) {
-		if (info->params.mode != MGSL_MODE_ASYNC) {
-			if (status & IRQ_TXUNDER)
-				info->icount.txunder++;
-			else if (status & IRQ_TXIDLE)
-				info->icount.txok++;
-		}
-
-		if (unsent_tbufs(info)) {
-			tx_start(info);
-			update_tx_timer(info);
-			return;
-		}
-		info->tx_active = false;
-
-		del_timer(&info->tx_timer);
-
-		if (info->params.mode != MGSL_MODE_ASYNC && info->drop_rts_on_tx_done) {
-			info->signals &= ~SerialSignal_RTS;
-			info->drop_rts_on_tx_done = false;
-			set_signals(info);
-		}
-
-#if SYNCLINK_GENERIC_HDLC
-		if (info->netcount)
-			hdlcdev_tx_done(info);
-		else
-#endif
-		{
-			if (info->port.tty && (info->port.tty->stopped || info->port.tty->hw_stopped)) {
-				tx_stop(info);
-				return;
-			}
-			info->pending_bh |= BH_TRANSMIT;
-		}
-	}
-}
-
-static void isr_gpio(struct slgt_info *info, unsigned int changed, unsigned int state)
-{
-	struct cond_wait *w, *prev;
-
-	/* wake processes waiting for specific transitions */
-	for (w = info->gpio_wait_q, prev = NULL ; w != NULL ; w = w->next) {
-		if (w->data & changed) {
-			w->data = state;
-			wake_up_interruptible(&w->q);
-			if (prev != NULL)
-				prev->next = w->next;
-			else
-				info->gpio_wait_q = w->next;
-		} else
-			prev = w;
-	}
-}
-
-/* interrupt service routine
- *
- * 	irq	interrupt number
- * 	dev_id	device ID supplied during interrupt registration
- */
-static irqreturn_t slgt_interrupt(int dummy, void *dev_id)
-{
-	struct slgt_info *info = dev_id;
-	unsigned int gsr;
-	unsigned int i;
-
-	DBGISR(("slgt_interrupt irq=%d entry\n", info->irq_level));
-
-	while((gsr = rd_reg32(info, GSR) & 0xffffff00)) {
-		DBGISR(("%s gsr=%08x\n", info->device_name, gsr));
-		info->irq_occurred = true;
-		for(i=0; i < info->port_count ; i++) {
-			if (info->port_array[i] == NULL)
-				continue;
-			spin_lock(&info->port_array[i]->lock);
-			if (gsr & (BIT8 << i))
-				isr_serial(info->port_array[i]);
-			if (gsr & (BIT16 << (i*2)))
-				isr_rdma(info->port_array[i]);
-			if (gsr & (BIT17 << (i*2)))
-				isr_tdma(info->port_array[i]);
-			spin_unlock(&info->port_array[i]->lock);
-		}
-	}
-
-	if (info->gpio_present) {
-		unsigned int state;
-		unsigned int changed;
-		spin_lock(&info->lock);
-		while ((changed = rd_reg32(info, IOSR)) != 0) {
-			DBGISR(("%s iosr=%08x\n", info->device_name, changed));
-			/* read latched state of GPIO signals */
-			state = rd_reg32(info, IOVR);
-			/* clear pending GPIO interrupt bits */
-			wr_reg32(info, IOSR, changed);
-			for (i=0 ; i < info->port_count ; i++) {
-				if (info->port_array[i] != NULL)
-					isr_gpio(info->port_array[i], changed, state);
-			}
-		}
-		spin_unlock(&info->lock);
-	}
-
-	for(i=0; i < info->port_count ; i++) {
-		struct slgt_info *port = info->port_array[i];
-		if (port == NULL)
-			continue;
-		spin_lock(&port->lock);
-		if ((port->port.count || port->netcount) &&
-		    port->pending_bh && !port->bh_running &&
-		    !port->bh_requested) {
-			DBGISR(("%s bh queued\n", port->device_name));
-			schedule_work(&port->task);
-			port->bh_requested = true;
-		}
-		spin_unlock(&port->lock);
-	}
-
-	DBGISR(("slgt_interrupt irq=%d exit\n", info->irq_level));
-	return IRQ_HANDLED;
-}
-
-static int startup(struct slgt_info *info)
-{
-	DBGINFO(("%s startup\n", info->device_name));
-
-	if (info->port.flags & ASYNC_INITIALIZED)
-		return 0;
-
-	if (!info->tx_buf) {
-		info->tx_buf = kmalloc(info->max_frame_size, GFP_KERNEL);
-		if (!info->tx_buf) {
-			DBGERR(("%s can't allocate tx buffer\n", info->device_name));
-			return -ENOMEM;
-		}
-	}
-
-	info->pending_bh = 0;
-
-	memset(&info->icount, 0, sizeof(info->icount));
-
-	/* program hardware for current parameters */
-	change_params(info);
-
-	if (info->port.tty)
-		clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
-
-	info->port.flags |= ASYNC_INITIALIZED;
-
-	return 0;
-}
-
-/*
- *  called by close() and hangup() to shutdown hardware
- */
-static void shutdown(struct slgt_info *info)
-{
-	unsigned long flags;
-
-	if (!(info->port.flags & ASYNC_INITIALIZED))
-		return;
-
-	DBGINFO(("%s shutdown\n", info->device_name));
-
-	/* clear status wait queue because status changes */
-	/* can't happen after shutting down the hardware */
-	wake_up_interruptible(&info->status_event_wait_q);
-	wake_up_interruptible(&info->event_wait_q);
-
-	del_timer_sync(&info->tx_timer);
-	del_timer_sync(&info->rx_timer);
-
-	kfree(info->tx_buf);
-	info->tx_buf = NULL;
-
-	spin_lock_irqsave(&info->lock,flags);
-
-	tx_stop(info);
-	rx_stop(info);
-
-	slgt_irq_off(info, IRQ_ALL | IRQ_MASTER);
-
- 	if (!info->port.tty || info->port.tty->termios->c_cflag & HUPCL) {
- 		info->signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
-		set_signals(info);
-	}
-
-	flush_cond_wait(&info->gpio_wait_q);
-
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	if (info->port.tty)
-		set_bit(TTY_IO_ERROR, &info->port.tty->flags);
-
-	info->port.flags &= ~ASYNC_INITIALIZED;
-}
-
-static void program_hw(struct slgt_info *info)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&info->lock,flags);
-
-	rx_stop(info);
-	tx_stop(info);
-
-	if (info->params.mode != MGSL_MODE_ASYNC ||
-	    info->netcount)
-		sync_mode(info);
-	else
-		async_mode(info);
-
-	set_signals(info);
-
-	info->dcd_chkcount = 0;
-	info->cts_chkcount = 0;
-	info->ri_chkcount = 0;
-	info->dsr_chkcount = 0;
-
-	slgt_irq_on(info, IRQ_DCD | IRQ_CTS | IRQ_DSR | IRQ_RI);
-	get_signals(info);
-
-	if (info->netcount ||
-	    (info->port.tty && info->port.tty->termios->c_cflag & CREAD))
-		rx_start(info);
-
-	spin_unlock_irqrestore(&info->lock,flags);
-}
-
-/*
- * reconfigure adapter based on new parameters
- */
-static void change_params(struct slgt_info *info)
-{
-	unsigned cflag;
-	int bits_per_char;
-
-	if (!info->port.tty || !info->port.tty->termios)
-		return;
-	DBGINFO(("%s change_params\n", info->device_name));
-
-	cflag = info->port.tty->termios->c_cflag;
-
-	/* if B0 rate (hangup) specified then negate DTR and RTS */
-	/* otherwise assert DTR and RTS */
- 	if (cflag & CBAUD)
-		info->signals |= SerialSignal_RTS + SerialSignal_DTR;
-	else
-		info->signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
-
-	/* byte size and parity */
-
-	switch (cflag & CSIZE) {
-	case CS5: info->params.data_bits = 5; break;
-	case CS6: info->params.data_bits = 6; break;
-	case CS7: info->params.data_bits = 7; break;
-	case CS8: info->params.data_bits = 8; break;
-	default:  info->params.data_bits = 7; break;
-	}
-
-	info->params.stop_bits = (cflag & CSTOPB) ? 2 : 1;
-
-	if (cflag & PARENB)
-		info->params.parity = (cflag & PARODD) ? ASYNC_PARITY_ODD : ASYNC_PARITY_EVEN;
-	else
-		info->params.parity = ASYNC_PARITY_NONE;
-
-	/* calculate number of jiffies to transmit a full
-	 * FIFO (32 bytes) at specified data rate
-	 */
-	bits_per_char = info->params.data_bits +
-			info->params.stop_bits + 1;
-
-	info->params.data_rate = tty_get_baud_rate(info->port.tty);
-
-	if (info->params.data_rate) {
-		info->timeout = (32*HZ*bits_per_char) /
-				info->params.data_rate;
-	}
-	info->timeout += HZ/50;		/* Add .02 seconds of slop */
-
-	if (cflag & CRTSCTS)
-		info->port.flags |= ASYNC_CTS_FLOW;
-	else
-		info->port.flags &= ~ASYNC_CTS_FLOW;
-
-	if (cflag & CLOCAL)
-		info->port.flags &= ~ASYNC_CHECK_CD;
-	else
-		info->port.flags |= ASYNC_CHECK_CD;
-
-	/* process tty input control flags */
-
-	info->read_status_mask = IRQ_RXOVER;
-	if (I_INPCK(info->port.tty))
-		info->read_status_mask |= MASK_PARITY | MASK_FRAMING;
- 	if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))
- 		info->read_status_mask |= MASK_BREAK;
-	if (I_IGNPAR(info->port.tty))
-		info->ignore_status_mask |= MASK_PARITY | MASK_FRAMING;
-	if (I_IGNBRK(info->port.tty)) {
-		info->ignore_status_mask |= MASK_BREAK;
-		/* If ignoring parity and break indicators, ignore
-		 * overruns too.  (For real raw support).
-		 */
-		if (I_IGNPAR(info->port.tty))
-			info->ignore_status_mask |= MASK_OVERRUN;
-	}
-
-	program_hw(info);
-}
-
-static int get_stats(struct slgt_info *info, struct mgsl_icount __user *user_icount)
-{
-	DBGINFO(("%s get_stats\n",  info->device_name));
-	if (!user_icount) {
-		memset(&info->icount, 0, sizeof(info->icount));
-	} else {
-		if (copy_to_user(user_icount, &info->icount, sizeof(struct mgsl_icount)))
-			return -EFAULT;
-	}
-	return 0;
-}
-
-static int get_params(struct slgt_info *info, MGSL_PARAMS __user *user_params)
-{
-	DBGINFO(("%s get_params\n", info->device_name));
-	if (copy_to_user(user_params, &info->params, sizeof(MGSL_PARAMS)))
-		return -EFAULT;
-	return 0;
-}
-
-static int set_params(struct slgt_info *info, MGSL_PARAMS __user *new_params)
-{
- 	unsigned long flags;
-	MGSL_PARAMS tmp_params;
-
-	DBGINFO(("%s set_params\n", info->device_name));
-	if (copy_from_user(&tmp_params, new_params, sizeof(MGSL_PARAMS)))
-		return -EFAULT;
-
-	spin_lock_irqsave(&info->lock, flags);
-	if (tmp_params.mode == MGSL_MODE_BASE_CLOCK)
-		info->base_clock = tmp_params.clock_speed;
-	else
-		memcpy(&info->params, &tmp_params, sizeof(MGSL_PARAMS));
-	spin_unlock_irqrestore(&info->lock, flags);
-
-	program_hw(info);
-
-	return 0;
-}
-
-static int get_txidle(struct slgt_info *info, int __user *idle_mode)
-{
-	DBGINFO(("%s get_txidle=%d\n", info->device_name, info->idle_mode));
-	if (put_user(info->idle_mode, idle_mode))
-		return -EFAULT;
-	return 0;
-}
-
-static int set_txidle(struct slgt_info *info, int idle_mode)
-{
- 	unsigned long flags;
-	DBGINFO(("%s set_txidle(%d)\n", info->device_name, idle_mode));
-	spin_lock_irqsave(&info->lock,flags);
-	info->idle_mode = idle_mode;
-	if (info->params.mode != MGSL_MODE_ASYNC)
-		tx_set_idle(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-	return 0;
-}
-
-static int tx_enable(struct slgt_info *info, int enable)
-{
- 	unsigned long flags;
-	DBGINFO(("%s tx_enable(%d)\n", info->device_name, enable));
-	spin_lock_irqsave(&info->lock,flags);
-	if (enable) {
-		if (!info->tx_enabled)
-			tx_start(info);
-	} else {
-		if (info->tx_enabled)
-			tx_stop(info);
-	}
-	spin_unlock_irqrestore(&info->lock,flags);
-	return 0;
-}
-
-/*
- * abort transmit HDLC frame
- */
-static int tx_abort(struct slgt_info *info)
-{
- 	unsigned long flags;
-	DBGINFO(("%s tx_abort\n", info->device_name));
-	spin_lock_irqsave(&info->lock,flags);
-	tdma_reset(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-	return 0;
-}
-
-static int rx_enable(struct slgt_info *info, int enable)
-{
- 	unsigned long flags;
-	unsigned int rbuf_fill_level;
-	DBGINFO(("%s rx_enable(%08x)\n", info->device_name, enable));
-	spin_lock_irqsave(&info->lock,flags);
-	/*
-	 * enable[31..16] = receive DMA buffer fill level
-	 * 0 = noop (leave fill level unchanged)
-	 * fill level must be multiple of 4 and <= buffer size
-	 */
-	rbuf_fill_level = ((unsigned int)enable) >> 16;
-	if (rbuf_fill_level) {
-		if ((rbuf_fill_level > DMABUFSIZE) || (rbuf_fill_level % 4)) {
-			spin_unlock_irqrestore(&info->lock, flags);
-			return -EINVAL;
-		}
-		info->rbuf_fill_level = rbuf_fill_level;
-		if (rbuf_fill_level < 128)
-			info->rx_pio = 1; /* PIO mode */
-		else
-			info->rx_pio = 0; /* DMA mode */
-		rx_stop(info); /* restart receiver to use new fill level */
-	}
-
-	/*
-	 * enable[1..0] = receiver enable command
-	 * 0 = disable
-	 * 1 = enable
-	 * 2 = enable or force hunt mode if already enabled
-	 */
-	enable &= 3;
-	if (enable) {
-		if (!info->rx_enabled)
-			rx_start(info);
-		else if (enable == 2) {
-			/* force hunt mode (write 1 to RCR[3]) */
-			wr_reg16(info, RCR, rd_reg16(info, RCR) | BIT3);
-		}
-	} else {
-		if (info->rx_enabled)
-			rx_stop(info);
-	}
-	spin_unlock_irqrestore(&info->lock,flags);
-	return 0;
-}
-
-/*
- *  wait for specified event to occur
- */
-static int wait_mgsl_event(struct slgt_info *info, int __user *mask_ptr)
-{
- 	unsigned long flags;
-	int s;
-	int rc=0;
-	struct mgsl_icount cprev, cnow;
-	int events;
-	int mask;
-	struct	_input_signal_events oldsigs, newsigs;
-	DECLARE_WAITQUEUE(wait, current);
-
-	if (get_user(mask, mask_ptr))
-		return -EFAULT;
-
-	DBGINFO(("%s wait_mgsl_event(%d)\n", info->device_name, mask));
-
-	spin_lock_irqsave(&info->lock,flags);
-
-	/* return immediately if state matches requested events */
-	get_signals(info);
-	s = info->signals;
-
-	events = mask &
-		( ((s & SerialSignal_DSR) ? MgslEvent_DsrActive:MgslEvent_DsrInactive) +
- 		  ((s & SerialSignal_DCD) ? MgslEvent_DcdActive:MgslEvent_DcdInactive) +
-		  ((s & SerialSignal_CTS) ? MgslEvent_CtsActive:MgslEvent_CtsInactive) +
-		  ((s & SerialSignal_RI)  ? MgslEvent_RiActive :MgslEvent_RiInactive) );
-	if (events) {
-		spin_unlock_irqrestore(&info->lock,flags);
-		goto exit;
-	}
-
-	/* save current irq counts */
-	cprev = info->icount;
-	oldsigs = info->input_signal_events;
-
-	/* enable hunt and idle irqs if needed */
-	if (mask & (MgslEvent_ExitHuntMode+MgslEvent_IdleReceived)) {
-		unsigned short val = rd_reg16(info, SCR);
-		if (!(val & IRQ_RXIDLE))
-			wr_reg16(info, SCR, (unsigned short)(val | IRQ_RXIDLE));
-	}
-
-	set_current_state(TASK_INTERRUPTIBLE);
-	add_wait_queue(&info->event_wait_q, &wait);
-
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	for(;;) {
-		schedule();
-		if (signal_pending(current)) {
-			rc = -ERESTARTSYS;
-			break;
-		}
-
-		/* get current irq counts */
-		spin_lock_irqsave(&info->lock,flags);
-		cnow = info->icount;
-		newsigs = info->input_signal_events;
-		set_current_state(TASK_INTERRUPTIBLE);
-		spin_unlock_irqrestore(&info->lock,flags);
-
-		/* if no change, wait aborted for some reason */
-		if (newsigs.dsr_up   == oldsigs.dsr_up   &&
-		    newsigs.dsr_down == oldsigs.dsr_down &&
-		    newsigs.dcd_up   == oldsigs.dcd_up   &&
-		    newsigs.dcd_down == oldsigs.dcd_down &&
-		    newsigs.cts_up   == oldsigs.cts_up   &&
-		    newsigs.cts_down == oldsigs.cts_down &&
-		    newsigs.ri_up    == oldsigs.ri_up    &&
-		    newsigs.ri_down  == oldsigs.ri_down  &&
-		    cnow.exithunt    == cprev.exithunt   &&
-		    cnow.rxidle      == cprev.rxidle) {
-			rc = -EIO;
-			break;
-		}
-
-		events = mask &
-			( (newsigs.dsr_up   != oldsigs.dsr_up   ? MgslEvent_DsrActive:0)   +
-			  (newsigs.dsr_down != oldsigs.dsr_down ? MgslEvent_DsrInactive:0) +
-			  (newsigs.dcd_up   != oldsigs.dcd_up   ? MgslEvent_DcdActive:0)   +
-			  (newsigs.dcd_down != oldsigs.dcd_down ? MgslEvent_DcdInactive:0) +
-			  (newsigs.cts_up   != oldsigs.cts_up   ? MgslEvent_CtsActive:0)   +
-			  (newsigs.cts_down != oldsigs.cts_down ? MgslEvent_CtsInactive:0) +
-			  (newsigs.ri_up    != oldsigs.ri_up    ? MgslEvent_RiActive:0)    +
-			  (newsigs.ri_down  != oldsigs.ri_down  ? MgslEvent_RiInactive:0)  +
-			  (cnow.exithunt    != cprev.exithunt   ? MgslEvent_ExitHuntMode:0) +
-			  (cnow.rxidle      != cprev.rxidle     ? MgslEvent_IdleReceived:0) );
-		if (events)
-			break;
-
-		cprev = cnow;
-		oldsigs = newsigs;
-	}
-
-	remove_wait_queue(&info->event_wait_q, &wait);
-	set_current_state(TASK_RUNNING);
-
-
-	if (mask & (MgslEvent_ExitHuntMode + MgslEvent_IdleReceived)) {
-		spin_lock_irqsave(&info->lock,flags);
-		if (!waitqueue_active(&info->event_wait_q)) {
-			/* disable enable exit hunt mode/idle rcvd IRQs */
-			wr_reg16(info, SCR,
-				(unsigned short)(rd_reg16(info, SCR) & ~IRQ_RXIDLE));
-		}
-		spin_unlock_irqrestore(&info->lock,flags);
-	}
-exit:
-	if (rc == 0)
-		rc = put_user(events, mask_ptr);
-	return rc;
-}
-
-static int get_interface(struct slgt_info *info, int __user *if_mode)
-{
-	DBGINFO(("%s get_interface=%x\n", info->device_name, info->if_mode));
-	if (put_user(info->if_mode, if_mode))
-		return -EFAULT;
-	return 0;
-}
-
-static int set_interface(struct slgt_info *info, int if_mode)
-{
- 	unsigned long flags;
-	unsigned short val;
-
-	DBGINFO(("%s set_interface=%x)\n", info->device_name, if_mode));
-	spin_lock_irqsave(&info->lock,flags);
-	info->if_mode = if_mode;
-
-	msc_set_vcr(info);
-
-	/* TCR (tx control) 07  1=RTS driver control */
-	val = rd_reg16(info, TCR);
-	if (info->if_mode & MGSL_INTERFACE_RTS_EN)
-		val |= BIT7;
-	else
-		val &= ~BIT7;
-	wr_reg16(info, TCR, val);
-
-	spin_unlock_irqrestore(&info->lock,flags);
-	return 0;
-}
-
-static int get_xsync(struct slgt_info *info, int __user *xsync)
-{
-	DBGINFO(("%s get_xsync=%x\n", info->device_name, info->xsync));
-	if (put_user(info->xsync, xsync))
-		return -EFAULT;
-	return 0;
-}
-
-/*
- * set extended sync pattern (1 to 4 bytes) for extended sync mode
- *
- * sync pattern is contained in least significant bytes of value
- * most significant byte of sync pattern is oldest (1st sent/detected)
- */
-static int set_xsync(struct slgt_info *info, int xsync)
-{
-	unsigned long flags;
-
-	DBGINFO(("%s set_xsync=%x)\n", info->device_name, xsync));
-	spin_lock_irqsave(&info->lock, flags);
-	info->xsync = xsync;
-	wr_reg32(info, XSR, xsync);
-	spin_unlock_irqrestore(&info->lock, flags);
-	return 0;
-}
-
-static int get_xctrl(struct slgt_info *info, int __user *xctrl)
-{
-	DBGINFO(("%s get_xctrl=%x\n", info->device_name, info->xctrl));
-	if (put_user(info->xctrl, xctrl))
-		return -EFAULT;
-	return 0;
-}
-
-/*
- * set extended control options
- *
- * xctrl[31:19] reserved, must be zero
- * xctrl[18:17] extended sync pattern length in bytes
- *              00 = 1 byte  in xsr[7:0]
- *              01 = 2 bytes in xsr[15:0]
- *              10 = 3 bytes in xsr[23:0]
- *              11 = 4 bytes in xsr[31:0]
- * xctrl[16]    1 = enable terminal count, 0=disabled
- * xctrl[15:0]  receive terminal count for fixed length packets
- *              value is count minus one (0 = 1 byte packet)
- *              when terminal count is reached, receiver
- *              automatically returns to hunt mode and receive
- *              FIFO contents are flushed to DMA buffers with
- *              end of frame (EOF) status
- */
-static int set_xctrl(struct slgt_info *info, int xctrl)
-{
-	unsigned long flags;
-
-	DBGINFO(("%s set_xctrl=%x)\n", info->device_name, xctrl));
-	spin_lock_irqsave(&info->lock, flags);
-	info->xctrl = xctrl;
-	wr_reg32(info, XCR, xctrl);
-	spin_unlock_irqrestore(&info->lock, flags);
-	return 0;
-}
-
-/*
- * set general purpose IO pin state and direction
- *
- * user_gpio fields:
- * state   each bit indicates a pin state
- * smask   set bit indicates pin state to set
- * dir     each bit indicates a pin direction (0=input, 1=output)
- * dmask   set bit indicates pin direction to set
- */
-static int set_gpio(struct slgt_info *info, struct gpio_desc __user *user_gpio)
-{
- 	unsigned long flags;
-	struct gpio_desc gpio;
-	__u32 data;
-
-	if (!info->gpio_present)
-		return -EINVAL;
-	if (copy_from_user(&gpio, user_gpio, sizeof(gpio)))
-		return -EFAULT;
-	DBGINFO(("%s set_gpio state=%08x smask=%08x dir=%08x dmask=%08x\n",
-		 info->device_name, gpio.state, gpio.smask,
-		 gpio.dir, gpio.dmask));
-
-	spin_lock_irqsave(&info->port_array[0]->lock, flags);
-	if (gpio.dmask) {
-		data = rd_reg32(info, IODR);
-		data |= gpio.dmask & gpio.dir;
-		data &= ~(gpio.dmask & ~gpio.dir);
-		wr_reg32(info, IODR, data);
-	}
-	if (gpio.smask) {
-		data = rd_reg32(info, IOVR);
-		data |= gpio.smask & gpio.state;
-		data &= ~(gpio.smask & ~gpio.state);
-		wr_reg32(info, IOVR, data);
-	}
-	spin_unlock_irqrestore(&info->port_array[0]->lock, flags);
-
-	return 0;
-}
-
-/*
- * get general purpose IO pin state and direction
- */
-static int get_gpio(struct slgt_info *info, struct gpio_desc __user *user_gpio)
-{
-	struct gpio_desc gpio;
-	if (!info->gpio_present)
-		return -EINVAL;
-	gpio.state = rd_reg32(info, IOVR);
-	gpio.smask = 0xffffffff;
-	gpio.dir   = rd_reg32(info, IODR);
-	gpio.dmask = 0xffffffff;
-	if (copy_to_user(user_gpio, &gpio, sizeof(gpio)))
-		return -EFAULT;
-	DBGINFO(("%s get_gpio state=%08x dir=%08x\n",
-		 info->device_name, gpio.state, gpio.dir));
-	return 0;
-}
-
-/*
- * conditional wait facility
- */
-static void init_cond_wait(struct cond_wait *w, unsigned int data)
-{
-	init_waitqueue_head(&w->q);
-	init_waitqueue_entry(&w->wait, current);
-	w->data = data;
-}
-
-static void add_cond_wait(struct cond_wait **head, struct cond_wait *w)
-{
-	set_current_state(TASK_INTERRUPTIBLE);
-	add_wait_queue(&w->q, &w->wait);
-	w->next = *head;
-	*head = w;
-}
-
-static void remove_cond_wait(struct cond_wait **head, struct cond_wait *cw)
-{
-	struct cond_wait *w, *prev;
-	remove_wait_queue(&cw->q, &cw->wait);
-	set_current_state(TASK_RUNNING);
-	for (w = *head, prev = NULL ; w != NULL ; prev = w, w = w->next) {
-		if (w == cw) {
-			if (prev != NULL)
-				prev->next = w->next;
-			else
-				*head = w->next;
-			break;
-		}
-	}
-}
-
-static void flush_cond_wait(struct cond_wait **head)
-{
-	while (*head != NULL) {
-		wake_up_interruptible(&(*head)->q);
-		*head = (*head)->next;
-	}
-}
-
-/*
- * wait for general purpose I/O pin(s) to enter specified state
- *
- * user_gpio fields:
- * state - bit indicates target pin state
- * smask - set bit indicates watched pin
- *
- * The wait ends when at least one watched pin enters the specified
- * state. When 0 (no error) is returned, user_gpio->state is set to the
- * state of all GPIO pins when the wait ends.
- *
- * Note: Each pin may be a dedicated input, dedicated output, or
- * configurable input/output. The number and configuration of pins
- * varies with the specific adapter model. Only input pins (dedicated
- * or configured) can be monitored with this function.
- */
-static int wait_gpio(struct slgt_info *info, struct gpio_desc __user *user_gpio)
-{
- 	unsigned long flags;
-	int rc = 0;
-	struct gpio_desc gpio;
-	struct cond_wait wait;
-	u32 state;
-
-	if (!info->gpio_present)
-		return -EINVAL;
-	if (copy_from_user(&gpio, user_gpio, sizeof(gpio)))
-		return -EFAULT;
-	DBGINFO(("%s wait_gpio() state=%08x smask=%08x\n",
-		 info->device_name, gpio.state, gpio.smask));
-	/* ignore output pins identified by set IODR bit */
-	if ((gpio.smask &= ~rd_reg32(info, IODR)) == 0)
-		return -EINVAL;
-	init_cond_wait(&wait, gpio.smask);
-
-	spin_lock_irqsave(&info->port_array[0]->lock, flags);
-	/* enable interrupts for watched pins */
-	wr_reg32(info, IOER, rd_reg32(info, IOER) | gpio.smask);
-	/* get current pin states */
-	state = rd_reg32(info, IOVR);
-
-	if (gpio.smask & ~(state ^ gpio.state)) {
-		/* already in target state */
-		gpio.state = state;
-	} else {
-		/* wait for target state */
-		add_cond_wait(&info->gpio_wait_q, &wait);
-		spin_unlock_irqrestore(&info->port_array[0]->lock, flags);
-		schedule();
-		if (signal_pending(current))
-			rc = -ERESTARTSYS;
-		else
-			gpio.state = wait.data;
-		spin_lock_irqsave(&info->port_array[0]->lock, flags);
-		remove_cond_wait(&info->gpio_wait_q, &wait);
-	}
-
-	/* disable all GPIO interrupts if no waiting processes */
-	if (info->gpio_wait_q == NULL)
-		wr_reg32(info, IOER, 0);
-	spin_unlock_irqrestore(&info->port_array[0]->lock, flags);
-
-	if ((rc == 0) && copy_to_user(user_gpio, &gpio, sizeof(gpio)))
-		rc = -EFAULT;
-	return rc;
-}
-
-static int modem_input_wait(struct slgt_info *info,int arg)
-{
- 	unsigned long flags;
-	int rc;
-	struct mgsl_icount cprev, cnow;
-	DECLARE_WAITQUEUE(wait, current);
-
-	/* save current irq counts */
-	spin_lock_irqsave(&info->lock,flags);
-	cprev = info->icount;
-	add_wait_queue(&info->status_event_wait_q, &wait);
-	set_current_state(TASK_INTERRUPTIBLE);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	for(;;) {
-		schedule();
-		if (signal_pending(current)) {
-			rc = -ERESTARTSYS;
-			break;
-		}
-
-		/* get new irq counts */
-		spin_lock_irqsave(&info->lock,flags);
-		cnow = info->icount;
-		set_current_state(TASK_INTERRUPTIBLE);
-		spin_unlock_irqrestore(&info->lock,flags);
-
-		/* if no change, wait aborted for some reason */
-		if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
-		    cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) {
-			rc = -EIO;
-			break;
-		}
-
-		/* check for change in caller specified modem input */
-		if ((arg & TIOCM_RNG && cnow.rng != cprev.rng) ||
-		    (arg & TIOCM_DSR && cnow.dsr != cprev.dsr) ||
-		    (arg & TIOCM_CD  && cnow.dcd != cprev.dcd) ||
-		    (arg & TIOCM_CTS && cnow.cts != cprev.cts)) {
-			rc = 0;
-			break;
-		}
-
-		cprev = cnow;
-	}
-	remove_wait_queue(&info->status_event_wait_q, &wait);
-	set_current_state(TASK_RUNNING);
-	return rc;
-}
-
-/*
- *  return state of serial control and status signals
- */
-static int tiocmget(struct tty_struct *tty)
-{
-	struct slgt_info *info = tty->driver_data;
-	unsigned int result;
- 	unsigned long flags;
-
-	spin_lock_irqsave(&info->lock,flags);
- 	get_signals(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	result = ((info->signals & SerialSignal_RTS) ? TIOCM_RTS:0) +
-		((info->signals & SerialSignal_DTR) ? TIOCM_DTR:0) +
-		((info->signals & SerialSignal_DCD) ? TIOCM_CAR:0) +
-		((info->signals & SerialSignal_RI)  ? TIOCM_RNG:0) +
-		((info->signals & SerialSignal_DSR) ? TIOCM_DSR:0) +
-		((info->signals & SerialSignal_CTS) ? TIOCM_CTS:0);
-
-	DBGINFO(("%s tiocmget value=%08X\n", info->device_name, result));
-	return result;
-}
-
-/*
- * set modem control signals (DTR/RTS)
- *
- * 	cmd	signal command: TIOCMBIS = set bit TIOCMBIC = clear bit
- *		TIOCMSET = set/clear signal values
- * 	value	bit mask for command
- */
-static int tiocmset(struct tty_struct *tty,
-		    unsigned int set, unsigned int clear)
-{
-	struct slgt_info *info = tty->driver_data;
- 	unsigned long flags;
-
-	DBGINFO(("%s tiocmset(%x,%x)\n", info->device_name, set, clear));
-
-	if (set & TIOCM_RTS)
-		info->signals |= SerialSignal_RTS;
-	if (set & TIOCM_DTR)
-		info->signals |= SerialSignal_DTR;
-	if (clear & TIOCM_RTS)
-		info->signals &= ~SerialSignal_RTS;
-	if (clear & TIOCM_DTR)
-		info->signals &= ~SerialSignal_DTR;
-
-	spin_lock_irqsave(&info->lock,flags);
- 	set_signals(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-	return 0;
-}
-
-static int carrier_raised(struct tty_port *port)
-{
-	unsigned long flags;
-	struct slgt_info *info = container_of(port, struct slgt_info, port);
-
-	spin_lock_irqsave(&info->lock,flags);
- 	get_signals(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-	return (info->signals & SerialSignal_DCD) ? 1 : 0;
-}
-
-static void dtr_rts(struct tty_port *port, int on)
-{
-	unsigned long flags;
-	struct slgt_info *info = container_of(port, struct slgt_info, port);
-
-	spin_lock_irqsave(&info->lock,flags);
-	if (on)
-		info->signals |= SerialSignal_RTS + SerialSignal_DTR;
-	else
-		info->signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
- 	set_signals(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-}
-
-
-/*
- *  block current process until the device is ready to open
- */
-static int block_til_ready(struct tty_struct *tty, struct file *filp,
-			   struct slgt_info *info)
-{
-	DECLARE_WAITQUEUE(wait, current);
-	int		retval;
-	bool		do_clocal = false;
-	bool		extra_count = false;
-	unsigned long	flags;
-	int		cd;
-	struct tty_port *port = &info->port;
-
-	DBGINFO(("%s block_til_ready\n", tty->driver->name));
-
-	if (filp->f_flags & O_NONBLOCK || tty->flags & (1 << TTY_IO_ERROR)){
-		/* nonblock mode is set or port is not enabled */
-		port->flags |= ASYNC_NORMAL_ACTIVE;
-		return 0;
-	}
-
-	if (tty->termios->c_cflag & CLOCAL)
-		do_clocal = true;
-
-	/* Wait for carrier detect and the line to become
-	 * free (i.e., not in use by the callout).  While we are in
-	 * this loop, port->count is dropped by one, so that
-	 * close() knows when to free things.  We restore it upon
-	 * exit, either normal or abnormal.
-	 */
-
-	retval = 0;
-	add_wait_queue(&port->open_wait, &wait);
-
-	spin_lock_irqsave(&info->lock, flags);
-	if (!tty_hung_up_p(filp)) {
-		extra_count = true;
-		port->count--;
-	}
-	spin_unlock_irqrestore(&info->lock, flags);
-	port->blocked_open++;
-
-	while (1) {
-		if ((tty->termios->c_cflag & CBAUD))
-			tty_port_raise_dtr_rts(port);
-
-		set_current_state(TASK_INTERRUPTIBLE);
-
-		if (tty_hung_up_p(filp) || !(port->flags & ASYNC_INITIALIZED)){
-			retval = (port->flags & ASYNC_HUP_NOTIFY) ?
-					-EAGAIN : -ERESTARTSYS;
-			break;
-		}
-
-		cd = tty_port_carrier_raised(port);
-
- 		if (!(port->flags & ASYNC_CLOSING) && (do_clocal || cd ))
- 			break;
-
-		if (signal_pending(current)) {
-			retval = -ERESTARTSYS;
-			break;
-		}
-
-		DBGINFO(("%s block_til_ready wait\n", tty->driver->name));
-		tty_unlock();
-		schedule();
-		tty_lock();
-	}
-
-	set_current_state(TASK_RUNNING);
-	remove_wait_queue(&port->open_wait, &wait);
-
-	if (extra_count)
-		port->count++;
-	port->blocked_open--;
-
-	if (!retval)
-		port->flags |= ASYNC_NORMAL_ACTIVE;
-
-	DBGINFO(("%s block_til_ready ready, rc=%d\n", tty->driver->name, retval));
-	return retval;
-}
-
-static int alloc_tmp_rbuf(struct slgt_info *info)
-{
-	info->tmp_rbuf = kmalloc(info->max_frame_size + 5, GFP_KERNEL);
-	if (info->tmp_rbuf == NULL)
-		return -ENOMEM;
-	return 0;
-}
-
-static void free_tmp_rbuf(struct slgt_info *info)
-{
-	kfree(info->tmp_rbuf);
-	info->tmp_rbuf = NULL;
-}
-
-/*
- * allocate DMA descriptor lists.
- */
-static int alloc_desc(struct slgt_info *info)
-{
-	unsigned int i;
-	unsigned int pbufs;
-
-	/* allocate memory to hold descriptor lists */
-	info->bufs = pci_alloc_consistent(info->pdev, DESC_LIST_SIZE, &info->bufs_dma_addr);
-	if (info->bufs == NULL)
-		return -ENOMEM;
-
-	memset(info->bufs, 0, DESC_LIST_SIZE);
-
-	info->rbufs = (struct slgt_desc*)info->bufs;
-	info->tbufs = ((struct slgt_desc*)info->bufs) + info->rbuf_count;
-
-	pbufs = (unsigned int)info->bufs_dma_addr;
-
-	/*
-	 * Build circular lists of descriptors
-	 */
-
-	for (i=0; i < info->rbuf_count; i++) {
-		/* physical address of this descriptor */
-		info->rbufs[i].pdesc = pbufs + (i * sizeof(struct slgt_desc));
-
-		/* physical address of next descriptor */
-		if (i == info->rbuf_count - 1)
-			info->rbufs[i].next = cpu_to_le32(pbufs);
-		else
-			info->rbufs[i].next = cpu_to_le32(pbufs + ((i+1) * sizeof(struct slgt_desc)));
-		set_desc_count(info->rbufs[i], DMABUFSIZE);
-	}
-
-	for (i=0; i < info->tbuf_count; i++) {
-		/* physical address of this descriptor */
-		info->tbufs[i].pdesc = pbufs + ((info->rbuf_count + i) * sizeof(struct slgt_desc));
-
-		/* physical address of next descriptor */
-		if (i == info->tbuf_count - 1)
-			info->tbufs[i].next = cpu_to_le32(pbufs + info->rbuf_count * sizeof(struct slgt_desc));
-		else
-			info->tbufs[i].next = cpu_to_le32(pbufs + ((info->rbuf_count + i + 1) * sizeof(struct slgt_desc)));
-	}
-
-	return 0;
-}
-
-static void free_desc(struct slgt_info *info)
-{
-	if (info->bufs != NULL) {
-		pci_free_consistent(info->pdev, DESC_LIST_SIZE, info->bufs, info->bufs_dma_addr);
-		info->bufs  = NULL;
-		info->rbufs = NULL;
-		info->tbufs = NULL;
-	}
-}
-
-static int alloc_bufs(struct slgt_info *info, struct slgt_desc *bufs, int count)
-{
-	int i;
-	for (i=0; i < count; i++) {
-		if ((bufs[i].buf = pci_alloc_consistent(info->pdev, DMABUFSIZE, &bufs[i].buf_dma_addr)) == NULL)
-			return -ENOMEM;
-		bufs[i].pbuf  = cpu_to_le32((unsigned int)bufs[i].buf_dma_addr);
-	}
-	return 0;
-}
-
-static void free_bufs(struct slgt_info *info, struct slgt_desc *bufs, int count)
-{
-	int i;
-	for (i=0; i < count; i++) {
-		if (bufs[i].buf == NULL)
-			continue;
-		pci_free_consistent(info->pdev, DMABUFSIZE, bufs[i].buf, bufs[i].buf_dma_addr);
-		bufs[i].buf = NULL;
-	}
-}
-
-static int alloc_dma_bufs(struct slgt_info *info)
-{
-	info->rbuf_count = 32;
-	info->tbuf_count = 32;
-
-	if (alloc_desc(info) < 0 ||
-	    alloc_bufs(info, info->rbufs, info->rbuf_count) < 0 ||
-	    alloc_bufs(info, info->tbufs, info->tbuf_count) < 0 ||
-	    alloc_tmp_rbuf(info) < 0) {
-		DBGERR(("%s DMA buffer alloc fail\n", info->device_name));
-		return -ENOMEM;
-	}
-	reset_rbufs(info);
-	return 0;
-}
-
-static void free_dma_bufs(struct slgt_info *info)
-{
-	if (info->bufs) {
-		free_bufs(info, info->rbufs, info->rbuf_count);
-		free_bufs(info, info->tbufs, info->tbuf_count);
-		free_desc(info);
-	}
-	free_tmp_rbuf(info);
-}
-
-static int claim_resources(struct slgt_info *info)
-{
-	if (request_mem_region(info->phys_reg_addr, SLGT_REG_SIZE, "synclink_gt") == NULL) {
-		DBGERR(("%s reg addr conflict, addr=%08X\n",
-			info->device_name, info->phys_reg_addr));
-		info->init_error = DiagStatus_AddressConflict;
-		goto errout;
-	}
-	else
-		info->reg_addr_requested = true;
-
-	info->reg_addr = ioremap_nocache(info->phys_reg_addr, SLGT_REG_SIZE);
-	if (!info->reg_addr) {
-		DBGERR(("%s cant map device registers, addr=%08X\n",
-			info->device_name, info->phys_reg_addr));
-		info->init_error = DiagStatus_CantAssignPciResources;
-		goto errout;
-	}
-	return 0;
-
-errout:
-	release_resources(info);
-	return -ENODEV;
-}
-
-static void release_resources(struct slgt_info *info)
-{
-	if (info->irq_requested) {
-		free_irq(info->irq_level, info);
-		info->irq_requested = false;
-	}
-
-	if (info->reg_addr_requested) {
-		release_mem_region(info->phys_reg_addr, SLGT_REG_SIZE);
-		info->reg_addr_requested = false;
-	}
-
-	if (info->reg_addr) {
-		iounmap(info->reg_addr);
-		info->reg_addr = NULL;
-	}
-}
-
-/* Add the specified device instance data structure to the
- * global linked list of devices and increment the device count.
- */
-static void add_device(struct slgt_info *info)
-{
-	char *devstr;
-
-	info->next_device = NULL;
-	info->line = slgt_device_count;
-	sprintf(info->device_name, "%s%d", tty_dev_prefix, info->line);
-
-	if (info->line < MAX_DEVICES) {
-		if (maxframe[info->line])
-			info->max_frame_size = maxframe[info->line];
-	}
-
-	slgt_device_count++;
-
-	if (!slgt_device_list)
-		slgt_device_list = info;
-	else {
-		struct slgt_info *current_dev = slgt_device_list;
-		while(current_dev->next_device)
-			current_dev = current_dev->next_device;
-		current_dev->next_device = info;
-	}
-
-	if (info->max_frame_size < 4096)
-		info->max_frame_size = 4096;
-	else if (info->max_frame_size > 65535)
-		info->max_frame_size = 65535;
-
-	switch(info->pdev->device) {
-	case SYNCLINK_GT_DEVICE_ID:
-		devstr = "GT";
-		break;
-	case SYNCLINK_GT2_DEVICE_ID:
-		devstr = "GT2";
-		break;
-	case SYNCLINK_GT4_DEVICE_ID:
-		devstr = "GT4";
-		break;
-	case SYNCLINK_AC_DEVICE_ID:
-		devstr = "AC";
-		info->params.mode = MGSL_MODE_ASYNC;
-		break;
-	default:
-		devstr = "(unknown model)";
-	}
-	printk("SyncLink %s %s IO=%08x IRQ=%d MaxFrameSize=%u\n",
-		devstr, info->device_name, info->phys_reg_addr,
-		info->irq_level, info->max_frame_size);
-
-#if SYNCLINK_GENERIC_HDLC
-	hdlcdev_init(info);
-#endif
-}
-
-static const struct tty_port_operations slgt_port_ops = {
-	.carrier_raised = carrier_raised,
-	.dtr_rts = dtr_rts,
-};
-
-/*
- *  allocate device instance structure, return NULL on failure
- */
-static struct slgt_info *alloc_dev(int adapter_num, int port_num, struct pci_dev *pdev)
-{
-	struct slgt_info *info;
-
-	info = kzalloc(sizeof(struct slgt_info), GFP_KERNEL);
-
-	if (!info) {
-		DBGERR(("%s device alloc failed adapter=%d port=%d\n",
-			driver_name, adapter_num, port_num));
-	} else {
-		tty_port_init(&info->port);
-		info->port.ops = &slgt_port_ops;
-		info->magic = MGSL_MAGIC;
-		INIT_WORK(&info->task, bh_handler);
-		info->max_frame_size = 4096;
-		info->base_clock = 14745600;
-		info->rbuf_fill_level = DMABUFSIZE;
-		info->port.close_delay = 5*HZ/10;
-		info->port.closing_wait = 30*HZ;
-		init_waitqueue_head(&info->status_event_wait_q);
-		init_waitqueue_head(&info->event_wait_q);
-		spin_lock_init(&info->netlock);
-		memcpy(&info->params,&default_params,sizeof(MGSL_PARAMS));
-		info->idle_mode = HDLC_TXIDLE_FLAGS;
-		info->adapter_num = adapter_num;
-		info->port_num = port_num;
-
-		setup_timer(&info->tx_timer, tx_timeout, (unsigned long)info);
-		setup_timer(&info->rx_timer, rx_timeout, (unsigned long)info);
-
-		/* Copy configuration info to device instance data */
-		info->pdev = pdev;
-		info->irq_level = pdev->irq;
-		info->phys_reg_addr = pci_resource_start(pdev,0);
-
-		info->bus_type = MGSL_BUS_TYPE_PCI;
-		info->irq_flags = IRQF_SHARED;
-
-		info->init_error = -1; /* assume error, set to 0 on successful init */
-	}
-
-	return info;
-}
-
-static void device_init(int adapter_num, struct pci_dev *pdev)
-{
-	struct slgt_info *port_array[SLGT_MAX_PORTS];
-	int i;
-	int port_count = 1;
-
-	if (pdev->device == SYNCLINK_GT2_DEVICE_ID)
-		port_count = 2;
-	else if (pdev->device == SYNCLINK_GT4_DEVICE_ID)
-		port_count = 4;
-
-	/* allocate device instances for all ports */
-	for (i=0; i < port_count; ++i) {
-		port_array[i] = alloc_dev(adapter_num, i, pdev);
-		if (port_array[i] == NULL) {
-			for (--i; i >= 0; --i)
-				kfree(port_array[i]);
-			return;
-		}
-	}
-
-	/* give copy of port_array to all ports and add to device list  */
-	for (i=0; i < port_count; ++i) {
-		memcpy(port_array[i]->port_array, port_array, sizeof(port_array));
-		add_device(port_array[i]);
-		port_array[i]->port_count = port_count;
-		spin_lock_init(&port_array[i]->lock);
-	}
-
-	/* Allocate and claim adapter resources */
-	if (!claim_resources(port_array[0])) {
-
-		alloc_dma_bufs(port_array[0]);
-
-		/* copy resource information from first port to others */
-		for (i = 1; i < port_count; ++i) {
-			port_array[i]->irq_level = port_array[0]->irq_level;
-			port_array[i]->reg_addr  = port_array[0]->reg_addr;
-			alloc_dma_bufs(port_array[i]);
-		}
-
-		if (request_irq(port_array[0]->irq_level,
-					slgt_interrupt,
-					port_array[0]->irq_flags,
-					port_array[0]->device_name,
-					port_array[0]) < 0) {
-			DBGERR(("%s request_irq failed IRQ=%d\n",
-				port_array[0]->device_name,
-				port_array[0]->irq_level));
-		} else {
-			port_array[0]->irq_requested = true;
-			adapter_test(port_array[0]);
-			for (i=1 ; i < port_count ; i++) {
-				port_array[i]->init_error = port_array[0]->init_error;
-				port_array[i]->gpio_present = port_array[0]->gpio_present;
-			}
-		}
-	}
-
-	for (i=0; i < port_count; ++i)
-		tty_register_device(serial_driver, port_array[i]->line, &(port_array[i]->pdev->dev));
-}
-
-static int __devinit init_one(struct pci_dev *dev,
-			      const struct pci_device_id *ent)
-{
-	if (pci_enable_device(dev)) {
-		printk("error enabling pci device %p\n", dev);
-		return -EIO;
-	}
-	pci_set_master(dev);
-	device_init(slgt_device_count, dev);
-	return 0;
-}
-
-static void __devexit remove_one(struct pci_dev *dev)
-{
-}
-
-static const struct tty_operations ops = {
-	.open = open,
-	.close = close,
-	.write = write,
-	.put_char = put_char,
-	.flush_chars = flush_chars,
-	.write_room = write_room,
-	.chars_in_buffer = chars_in_buffer,
-	.flush_buffer = flush_buffer,
-	.ioctl = ioctl,
-	.compat_ioctl = slgt_compat_ioctl,
-	.throttle = throttle,
-	.unthrottle = unthrottle,
-	.send_xchar = send_xchar,
-	.break_ctl = set_break,
-	.wait_until_sent = wait_until_sent,
-	.set_termios = set_termios,
-	.stop = tx_hold,
-	.start = tx_release,
-	.hangup = hangup,
-	.tiocmget = tiocmget,
-	.tiocmset = tiocmset,
-	.get_icount = get_icount,
-	.proc_fops = &synclink_gt_proc_fops,
-};
-
-static void slgt_cleanup(void)
-{
-	int rc;
-	struct slgt_info *info;
-	struct slgt_info *tmp;
-
-	printk(KERN_INFO "unload %s\n", driver_name);
-
-	if (serial_driver) {
-		for (info=slgt_device_list ; info != NULL ; info=info->next_device)
-			tty_unregister_device(serial_driver, info->line);
-		if ((rc = tty_unregister_driver(serial_driver)))
-			DBGERR(("tty_unregister_driver error=%d\n", rc));
-		put_tty_driver(serial_driver);
-	}
-
-	/* reset devices */
-	info = slgt_device_list;
-	while(info) {
-		reset_port(info);
-		info = info->next_device;
-	}
-
-	/* release devices */
-	info = slgt_device_list;
-	while(info) {
-#if SYNCLINK_GENERIC_HDLC
-		hdlcdev_exit(info);
-#endif
-		free_dma_bufs(info);
-		free_tmp_rbuf(info);
-		if (info->port_num == 0)
-			release_resources(info);
-		tmp = info;
-		info = info->next_device;
-		kfree(tmp);
-	}
-
-	if (pci_registered)
-		pci_unregister_driver(&pci_driver);
-}
-
-/*
- *  Driver initialization entry point.
- */
-static int __init slgt_init(void)
-{
-	int rc;
-
-	printk(KERN_INFO "%s\n", driver_name);
-
-	serial_driver = alloc_tty_driver(MAX_DEVICES);
-	if (!serial_driver) {
-		printk("%s can't allocate tty driver\n", driver_name);
-		return -ENOMEM;
-	}
-
-	/* Initialize the tty_driver structure */
-
-	serial_driver->owner = THIS_MODULE;
-	serial_driver->driver_name = tty_driver_name;
-	serial_driver->name = tty_dev_prefix;
-	serial_driver->major = ttymajor;
-	serial_driver->minor_start = 64;
-	serial_driver->type = TTY_DRIVER_TYPE_SERIAL;
-	serial_driver->subtype = SERIAL_TYPE_NORMAL;
-	serial_driver->init_termios = tty_std_termios;
-	serial_driver->init_termios.c_cflag =
-		B9600 | CS8 | CREAD | HUPCL | CLOCAL;
-	serial_driver->init_termios.c_ispeed = 9600;
-	serial_driver->init_termios.c_ospeed = 9600;
-	serial_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
-	tty_set_operations(serial_driver, &ops);
-	if ((rc = tty_register_driver(serial_driver)) < 0) {
-		DBGERR(("%s can't register serial driver\n", driver_name));
-		put_tty_driver(serial_driver);
-		serial_driver = NULL;
-		goto error;
-	}
-
-	printk(KERN_INFO "%s, tty major#%d\n",
-	       driver_name, serial_driver->major);
-
-	slgt_device_count = 0;
-	if ((rc = pci_register_driver(&pci_driver)) < 0) {
-		printk("%s pci_register_driver error=%d\n", driver_name, rc);
-		goto error;
-	}
-	pci_registered = true;
-
-	if (!slgt_device_list)
-		printk("%s no devices found\n",driver_name);
-
-	return 0;
-
-error:
-	slgt_cleanup();
-	return rc;
-}
-
-static void __exit slgt_exit(void)
-{
-	slgt_cleanup();
-}
-
-module_init(slgt_init);
-module_exit(slgt_exit);
-
-/*
- * register access routines
- */
-
-#define CALC_REGADDR() \
-	unsigned long reg_addr = ((unsigned long)info->reg_addr) + addr; \
-	if (addr >= 0x80) \
-		reg_addr += (info->port_num) * 32; \
-	else if (addr >= 0x40)	\
-		reg_addr += (info->port_num) * 16;
-
-static __u8 rd_reg8(struct slgt_info *info, unsigned int addr)
-{
-	CALC_REGADDR();
-	return readb((void __iomem *)reg_addr);
-}
-
-static void wr_reg8(struct slgt_info *info, unsigned int addr, __u8 value)
-{
-	CALC_REGADDR();
-	writeb(value, (void __iomem *)reg_addr);
-}
-
-static __u16 rd_reg16(struct slgt_info *info, unsigned int addr)
-{
-	CALC_REGADDR();
-	return readw((void __iomem *)reg_addr);
-}
-
-static void wr_reg16(struct slgt_info *info, unsigned int addr, __u16 value)
-{
-	CALC_REGADDR();
-	writew(value, (void __iomem *)reg_addr);
-}
-
-static __u32 rd_reg32(struct slgt_info *info, unsigned int addr)
-{
-	CALC_REGADDR();
-	return readl((void __iomem *)reg_addr);
-}
-
-static void wr_reg32(struct slgt_info *info, unsigned int addr, __u32 value)
-{
-	CALC_REGADDR();
-	writel(value, (void __iomem *)reg_addr);
-}
-
-static void rdma_reset(struct slgt_info *info)
-{
-	unsigned int i;
-
-	/* set reset bit */
-	wr_reg32(info, RDCSR, BIT1);
-
-	/* wait for enable bit cleared */
-	for(i=0 ; i < 1000 ; i++)
-		if (!(rd_reg32(info, RDCSR) & BIT0))
-			break;
-}
-
-static void tdma_reset(struct slgt_info *info)
-{
-	unsigned int i;
-
-	/* set reset bit */
-	wr_reg32(info, TDCSR, BIT1);
-
-	/* wait for enable bit cleared */
-	for(i=0 ; i < 1000 ; i++)
-		if (!(rd_reg32(info, TDCSR) & BIT0))
-			break;
-}
-
-/*
- * enable internal loopback
- * TxCLK and RxCLK are generated from BRG
- * and TxD is looped back to RxD internally.
- */
-static void enable_loopback(struct slgt_info *info)
-{
-	/* SCR (serial control) BIT2=looopback enable */
-	wr_reg16(info, SCR, (unsigned short)(rd_reg16(info, SCR) | BIT2));
-
-	if (info->params.mode != MGSL_MODE_ASYNC) {
-		/* CCR (clock control)
-		 * 07..05  tx clock source (010 = BRG)
-		 * 04..02  rx clock source (010 = BRG)
-		 * 01      auxclk enable   (0 = disable)
-		 * 00      BRG enable      (1 = enable)
-		 *
-		 * 0100 1001
-		 */
-		wr_reg8(info, CCR, 0x49);
-
-		/* set speed if available, otherwise use default */
-		if (info->params.clock_speed)
-			set_rate(info, info->params.clock_speed);
-		else
-			set_rate(info, 3686400);
-	}
-}
-
-/*
- *  set baud rate generator to specified rate
- */
-static void set_rate(struct slgt_info *info, u32 rate)
-{
-	unsigned int div;
-	unsigned int osc = info->base_clock;
-
-	/* div = osc/rate - 1
-	 *
-	 * Round div up if osc/rate is not integer to
-	 * force to next slowest rate.
-	 */
-
-	if (rate) {
-		div = osc/rate;
-		if (!(osc % rate) && div)
-			div--;
-		wr_reg16(info, BDR, (unsigned short)div);
-	}
-}
-
-static void rx_stop(struct slgt_info *info)
-{
-	unsigned short val;
-
-	/* disable and reset receiver */
-	val = rd_reg16(info, RCR) & ~BIT1;          /* clear enable bit */
-	wr_reg16(info, RCR, (unsigned short)(val | BIT2)); /* set reset bit */
-	wr_reg16(info, RCR, val);                  /* clear reset bit */
-
-	slgt_irq_off(info, IRQ_RXOVER + IRQ_RXDATA + IRQ_RXIDLE);
-
-	/* clear pending rx interrupts */
-	wr_reg16(info, SSR, IRQ_RXIDLE + IRQ_RXOVER);
-
-	rdma_reset(info);
-
-	info->rx_enabled = false;
-	info->rx_restart = false;
-}
-
-static void rx_start(struct slgt_info *info)
-{
-	unsigned short val;
-
-	slgt_irq_off(info, IRQ_RXOVER + IRQ_RXDATA);
-
-	/* clear pending rx overrun IRQ */
-	wr_reg16(info, SSR, IRQ_RXOVER);
-
-	/* reset and disable receiver */
-	val = rd_reg16(info, RCR) & ~BIT1; /* clear enable bit */
-	wr_reg16(info, RCR, (unsigned short)(val | BIT2)); /* set reset bit */
-	wr_reg16(info, RCR, val);                  /* clear reset bit */
-
-	rdma_reset(info);
-	reset_rbufs(info);
-
-	if (info->rx_pio) {
-		/* rx request when rx FIFO not empty */
-		wr_reg16(info, SCR, (unsigned short)(rd_reg16(info, SCR) & ~BIT14));
-		slgt_irq_on(info, IRQ_RXDATA);
-		if (info->params.mode == MGSL_MODE_ASYNC) {
-			/* enable saving of rx status */
-			wr_reg32(info, RDCSR, BIT6);
-		}
-	} else {
-		/* rx request when rx FIFO half full */
-		wr_reg16(info, SCR, (unsigned short)(rd_reg16(info, SCR) | BIT14));
-		/* set 1st descriptor address */
-		wr_reg32(info, RDDAR, info->rbufs[0].pdesc);
-
-		if (info->params.mode != MGSL_MODE_ASYNC) {
-			/* enable rx DMA and DMA interrupt */
-			wr_reg32(info, RDCSR, (BIT2 + BIT0));
-		} else {
-			/* enable saving of rx status, rx DMA and DMA interrupt */
-			wr_reg32(info, RDCSR, (BIT6 + BIT2 + BIT0));
-		}
-	}
-
-	slgt_irq_on(info, IRQ_RXOVER);
-
-	/* enable receiver */
-	wr_reg16(info, RCR, (unsigned short)(rd_reg16(info, RCR) | BIT1));
-
-	info->rx_restart = false;
-	info->rx_enabled = true;
-}
-
-static void tx_start(struct slgt_info *info)
-{
-	if (!info->tx_enabled) {
-		wr_reg16(info, TCR,
-			 (unsigned short)((rd_reg16(info, TCR) | BIT1) & ~BIT2));
-		info->tx_enabled = true;
-	}
-
-	if (desc_count(info->tbufs[info->tbuf_start])) {
-		info->drop_rts_on_tx_done = false;
-
-		if (info->params.mode != MGSL_MODE_ASYNC) {
-			if (info->params.flags & HDLC_FLAG_AUTO_RTS) {
-				get_signals(info);
-				if (!(info->signals & SerialSignal_RTS)) {
-					info->signals |= SerialSignal_RTS;
-					set_signals(info);
-					info->drop_rts_on_tx_done = true;
-				}
-			}
-
-			slgt_irq_off(info, IRQ_TXDATA);
-			slgt_irq_on(info, IRQ_TXUNDER + IRQ_TXIDLE);
-			/* clear tx idle and underrun status bits */
-			wr_reg16(info, SSR, (unsigned short)(IRQ_TXIDLE + IRQ_TXUNDER));
-		} else {
-			slgt_irq_off(info, IRQ_TXDATA);
-			slgt_irq_on(info, IRQ_TXIDLE);
-			/* clear tx idle status bit */
-			wr_reg16(info, SSR, IRQ_TXIDLE);
-		}
-		/* set 1st descriptor address and start DMA */
-		wr_reg32(info, TDDAR, info->tbufs[info->tbuf_start].pdesc);
-		wr_reg32(info, TDCSR, BIT2 + BIT0);
-		info->tx_active = true;
-	}
-}
-
-static void tx_stop(struct slgt_info *info)
-{
-	unsigned short val;
-
-	del_timer(&info->tx_timer);
-
-	tdma_reset(info);
-
-	/* reset and disable transmitter */
-	val = rd_reg16(info, TCR) & ~BIT1;          /* clear enable bit */
-	wr_reg16(info, TCR, (unsigned short)(val | BIT2)); /* set reset bit */
-
-	slgt_irq_off(info, IRQ_TXDATA + IRQ_TXIDLE + IRQ_TXUNDER);
-
-	/* clear tx idle and underrun status bit */
-	wr_reg16(info, SSR, (unsigned short)(IRQ_TXIDLE + IRQ_TXUNDER));
-
-	reset_tbufs(info);
-
-	info->tx_enabled = false;
-	info->tx_active = false;
-}
-
-static void reset_port(struct slgt_info *info)
-{
-	if (!info->reg_addr)
-		return;
-
-	tx_stop(info);
-	rx_stop(info);
-
-	info->signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
-	set_signals(info);
-
-	slgt_irq_off(info, IRQ_ALL | IRQ_MASTER);
-}
-
-static void reset_adapter(struct slgt_info *info)
-{
-	int i;
-	for (i=0; i < info->port_count; ++i) {
-		if (info->port_array[i])
-			reset_port(info->port_array[i]);
-	}
-}
-
-static void async_mode(struct slgt_info *info)
-{
-  	unsigned short val;
-
-	slgt_irq_off(info, IRQ_ALL | IRQ_MASTER);
-	tx_stop(info);
-	rx_stop(info);
-
-	/* TCR (tx control)
-	 *
-	 * 15..13  mode, 010=async
-	 * 12..10  encoding, 000=NRZ
-	 * 09      parity enable
-	 * 08      1=odd parity, 0=even parity
-	 * 07      1=RTS driver control
-	 * 06      1=break enable
-	 * 05..04  character length
-	 *         00=5 bits
-	 *         01=6 bits
-	 *         10=7 bits
-	 *         11=8 bits
-	 * 03      0=1 stop bit, 1=2 stop bits
-	 * 02      reset
-	 * 01      enable
-	 * 00      auto-CTS enable
-	 */
-	val = 0x4000;
-
-	if (info->if_mode & MGSL_INTERFACE_RTS_EN)
-		val |= BIT7;
-
-	if (info->params.parity != ASYNC_PARITY_NONE) {
-		val |= BIT9;
-		if (info->params.parity == ASYNC_PARITY_ODD)
-			val |= BIT8;
-	}
-
-	switch (info->params.data_bits)
-	{
-	case 6: val |= BIT4; break;
-	case 7: val |= BIT5; break;
-	case 8: val |= BIT5 + BIT4; break;
-	}
-
-	if (info->params.stop_bits != 1)
-		val |= BIT3;
-
-	if (info->params.flags & HDLC_FLAG_AUTO_CTS)
-		val |= BIT0;
-
-	wr_reg16(info, TCR, val);
-
-	/* RCR (rx control)
-	 *
-	 * 15..13  mode, 010=async
-	 * 12..10  encoding, 000=NRZ
-	 * 09      parity enable
-	 * 08      1=odd parity, 0=even parity
-	 * 07..06  reserved, must be 0
-	 * 05..04  character length
-	 *         00=5 bits
-	 *         01=6 bits
-	 *         10=7 bits
-	 *         11=8 bits
-	 * 03      reserved, must be zero
-	 * 02      reset
-	 * 01      enable
-	 * 00      auto-DCD enable
-	 */
-	val = 0x4000;
-
-	if (info->params.parity != ASYNC_PARITY_NONE) {
-		val |= BIT9;
-		if (info->params.parity == ASYNC_PARITY_ODD)
-			val |= BIT8;
-	}
-
-	switch (info->params.data_bits)
-	{
-	case 6: val |= BIT4; break;
-	case 7: val |= BIT5; break;
-	case 8: val |= BIT5 + BIT4; break;
-	}
-
-	if (info->params.flags & HDLC_FLAG_AUTO_DCD)
-		val |= BIT0;
-
-	wr_reg16(info, RCR, val);
-
-	/* CCR (clock control)
-	 *
-	 * 07..05  011 = tx clock source is BRG/16
-	 * 04..02  010 = rx clock source is BRG
-	 * 01      0 = auxclk disabled
-	 * 00      1 = BRG enabled
-	 *
-	 * 0110 1001
-	 */
-	wr_reg8(info, CCR, 0x69);
-
-	msc_set_vcr(info);
-
-	/* SCR (serial control)
-	 *
-	 * 15  1=tx req on FIFO half empty
-	 * 14  1=rx req on FIFO half full
-	 * 13  tx data  IRQ enable
-	 * 12  tx idle  IRQ enable
-	 * 11  rx break on IRQ enable
-	 * 10  rx data  IRQ enable
-	 * 09  rx break off IRQ enable
-	 * 08  overrun  IRQ enable
-	 * 07  DSR      IRQ enable
-	 * 06  CTS      IRQ enable
-	 * 05  DCD      IRQ enable
-	 * 04  RI       IRQ enable
-	 * 03  0=16x sampling, 1=8x sampling
-	 * 02  1=txd->rxd internal loopback enable
-	 * 01  reserved, must be zero
-	 * 00  1=master IRQ enable
-	 */
-	val = BIT15 + BIT14 + BIT0;
-	/* JCR[8] : 1 = x8 async mode feature available */
-	if ((rd_reg32(info, JCR) & BIT8) && info->params.data_rate &&
-	    ((info->base_clock < (info->params.data_rate * 16)) ||
-	     (info->base_clock % (info->params.data_rate * 16)))) {
-		/* use 8x sampling */
-		val |= BIT3;
-		set_rate(info, info->params.data_rate * 8);
-	} else {
-		/* use 16x sampling */
-		set_rate(info, info->params.data_rate * 16);
-	}
-	wr_reg16(info, SCR, val);
-
-	slgt_irq_on(info, IRQ_RXBREAK | IRQ_RXOVER);
-
-	if (info->params.loopback)
-		enable_loopback(info);
-}
-
-static void sync_mode(struct slgt_info *info)
-{
-	unsigned short val;
-
-	slgt_irq_off(info, IRQ_ALL | IRQ_MASTER);
-	tx_stop(info);
-	rx_stop(info);
-
-	/* TCR (tx control)
-	 *
-	 * 15..13  mode
-	 *         000=HDLC/SDLC
-	 *         001=raw bit synchronous
-	 *         010=asynchronous/isochronous
-	 *         011=monosync byte synchronous
-	 *         100=bisync byte synchronous
-	 *         101=xsync byte synchronous
-	 * 12..10  encoding
-	 * 09      CRC enable
-	 * 08      CRC32
-	 * 07      1=RTS driver control
-	 * 06      preamble enable
-	 * 05..04  preamble length
-	 * 03      share open/close flag
-	 * 02      reset
-	 * 01      enable
-	 * 00      auto-CTS enable
-	 */
-	val = BIT2;
-
-	switch(info->params.mode) {
-	case MGSL_MODE_XSYNC:
-		val |= BIT15 + BIT13;
-		break;
-	case MGSL_MODE_MONOSYNC: val |= BIT14 + BIT13; break;
-	case MGSL_MODE_BISYNC:   val |= BIT15; break;
-	case MGSL_MODE_RAW:      val |= BIT13; break;
-	}
-	if (info->if_mode & MGSL_INTERFACE_RTS_EN)
-		val |= BIT7;
-
-	switch(info->params.encoding)
-	{
-	case HDLC_ENCODING_NRZB:          val |= BIT10; break;
-	case HDLC_ENCODING_NRZI_MARK:     val |= BIT11; break;
-	case HDLC_ENCODING_NRZI:          val |= BIT11 + BIT10; break;
-	case HDLC_ENCODING_BIPHASE_MARK:  val |= BIT12; break;
-	case HDLC_ENCODING_BIPHASE_SPACE: val |= BIT12 + BIT10; break;
-	case HDLC_ENCODING_BIPHASE_LEVEL: val |= BIT12 + BIT11; break;
-	case HDLC_ENCODING_DIFF_BIPHASE_LEVEL: val |= BIT12 + BIT11 + BIT10; break;
-	}
-
-	switch (info->params.crc_type & HDLC_CRC_MASK)
-	{
-	case HDLC_CRC_16_CCITT: val |= BIT9; break;
-	case HDLC_CRC_32_CCITT: val |= BIT9 + BIT8; break;
-	}
-
-	if (info->params.preamble != HDLC_PREAMBLE_PATTERN_NONE)
-		val |= BIT6;
-
-	switch (info->params.preamble_length)
-	{
-	case HDLC_PREAMBLE_LENGTH_16BITS: val |= BIT5; break;
-	case HDLC_PREAMBLE_LENGTH_32BITS: val |= BIT4; break;
-	case HDLC_PREAMBLE_LENGTH_64BITS: val |= BIT5 + BIT4; break;
-	}
-
-	if (info->params.flags & HDLC_FLAG_AUTO_CTS)
-		val |= BIT0;
-
-	wr_reg16(info, TCR, val);
-
-	/* TPR (transmit preamble) */
-
-	switch (info->params.preamble)
-	{
-	case HDLC_PREAMBLE_PATTERN_FLAGS: val = 0x7e; break;
-	case HDLC_PREAMBLE_PATTERN_ONES:  val = 0xff; break;
-	case HDLC_PREAMBLE_PATTERN_ZEROS: val = 0x00; break;
-	case HDLC_PREAMBLE_PATTERN_10:    val = 0x55; break;
-	case HDLC_PREAMBLE_PATTERN_01:    val = 0xaa; break;
-	default:                          val = 0x7e; break;
-	}
-	wr_reg8(info, TPR, (unsigned char)val);
-
-	/* RCR (rx control)
-	 *
-	 * 15..13  mode
-	 *         000=HDLC/SDLC
-	 *         001=raw bit synchronous
-	 *         010=asynchronous/isochronous
-	 *         011=monosync byte synchronous
-	 *         100=bisync byte synchronous
-	 *         101=xsync byte synchronous
-	 * 12..10  encoding
-	 * 09      CRC enable
-	 * 08      CRC32
-	 * 07..03  reserved, must be 0
-	 * 02      reset
-	 * 01      enable
-	 * 00      auto-DCD enable
-	 */
-	val = 0;
-
-	switch(info->params.mode) {
-	case MGSL_MODE_XSYNC:
-		val |= BIT15 + BIT13;
-		break;
-	case MGSL_MODE_MONOSYNC: val |= BIT14 + BIT13; break;
-	case MGSL_MODE_BISYNC:   val |= BIT15; break;
-	case MGSL_MODE_RAW:      val |= BIT13; break;
-	}
-
-	switch(info->params.encoding)
-	{
-	case HDLC_ENCODING_NRZB:          val |= BIT10; break;
-	case HDLC_ENCODING_NRZI_MARK:     val |= BIT11; break;
-	case HDLC_ENCODING_NRZI:          val |= BIT11 + BIT10; break;
-	case HDLC_ENCODING_BIPHASE_MARK:  val |= BIT12; break;
-	case HDLC_ENCODING_BIPHASE_SPACE: val |= BIT12 + BIT10; break;
-	case HDLC_ENCODING_BIPHASE_LEVEL: val |= BIT12 + BIT11; break;
-	case HDLC_ENCODING_DIFF_BIPHASE_LEVEL: val |= BIT12 + BIT11 + BIT10; break;
-	}
-
-	switch (info->params.crc_type & HDLC_CRC_MASK)
-	{
-	case HDLC_CRC_16_CCITT: val |= BIT9; break;
-	case HDLC_CRC_32_CCITT: val |= BIT9 + BIT8; break;
-	}
-
-	if (info->params.flags & HDLC_FLAG_AUTO_DCD)
-		val |= BIT0;
-
-	wr_reg16(info, RCR, val);
-
-	/* CCR (clock control)
-	 *
-	 * 07..05  tx clock source
-	 * 04..02  rx clock source
-	 * 01      auxclk enable
-	 * 00      BRG enable
-	 */
-	val = 0;
-
-	if (info->params.flags & HDLC_FLAG_TXC_BRG)
-	{
-		// when RxC source is DPLL, BRG generates 16X DPLL
-		// reference clock, so take TxC from BRG/16 to get
-		// transmit clock at actual data rate
-		if (info->params.flags & HDLC_FLAG_RXC_DPLL)
-			val |= BIT6 + BIT5;	/* 011, txclk = BRG/16 */
-		else
-			val |= BIT6;	/* 010, txclk = BRG */
-	}
-	else if (info->params.flags & HDLC_FLAG_TXC_DPLL)
-		val |= BIT7;	/* 100, txclk = DPLL Input */
-	else if (info->params.flags & HDLC_FLAG_TXC_RXCPIN)
-		val |= BIT5;	/* 001, txclk = RXC Input */
-
-	if (info->params.flags & HDLC_FLAG_RXC_BRG)
-		val |= BIT3;	/* 010, rxclk = BRG */
-	else if (info->params.flags & HDLC_FLAG_RXC_DPLL)
-		val |= BIT4;	/* 100, rxclk = DPLL */
-	else if (info->params.flags & HDLC_FLAG_RXC_TXCPIN)
-		val |= BIT2;	/* 001, rxclk = TXC Input */
-
-	if (info->params.clock_speed)
-		val |= BIT1 + BIT0;
-
-	wr_reg8(info, CCR, (unsigned char)val);
-
-	if (info->params.flags & (HDLC_FLAG_TXC_DPLL + HDLC_FLAG_RXC_DPLL))
-	{
-		// program DPLL mode
-		switch(info->params.encoding)
-		{
-		case HDLC_ENCODING_BIPHASE_MARK:
-		case HDLC_ENCODING_BIPHASE_SPACE:
-			val = BIT7; break;
-		case HDLC_ENCODING_BIPHASE_LEVEL:
-		case HDLC_ENCODING_DIFF_BIPHASE_LEVEL:
-			val = BIT7 + BIT6; break;
-		default: val = BIT6;	// NRZ encodings
-		}
-		wr_reg16(info, RCR, (unsigned short)(rd_reg16(info, RCR) | val));
-
-		// DPLL requires a 16X reference clock from BRG
-		set_rate(info, info->params.clock_speed * 16);
-	}
-	else
-		set_rate(info, info->params.clock_speed);
-
-	tx_set_idle(info);
-
-	msc_set_vcr(info);
-
-	/* SCR (serial control)
-	 *
-	 * 15  1=tx req on FIFO half empty
-	 * 14  1=rx req on FIFO half full
-	 * 13  tx data  IRQ enable
-	 * 12  tx idle  IRQ enable
-	 * 11  underrun IRQ enable
-	 * 10  rx data  IRQ enable
-	 * 09  rx idle  IRQ enable
-	 * 08  overrun  IRQ enable
-	 * 07  DSR      IRQ enable
-	 * 06  CTS      IRQ enable
-	 * 05  DCD      IRQ enable
-	 * 04  RI       IRQ enable
-	 * 03  reserved, must be zero
-	 * 02  1=txd->rxd internal loopback enable
-	 * 01  reserved, must be zero
-	 * 00  1=master IRQ enable
-	 */
-	wr_reg16(info, SCR, BIT15 + BIT14 + BIT0);
-
-	if (info->params.loopback)
-		enable_loopback(info);
-}
-
-/*
- *  set transmit idle mode
- */
-static void tx_set_idle(struct slgt_info *info)
-{
-	unsigned char val;
-	unsigned short tcr;
-
-	/* if preamble enabled (tcr[6] == 1) then tx idle size = 8 bits
-	 * else tcr[5:4] = tx idle size: 00 = 8 bits, 01 = 16 bits
-	 */
-	tcr = rd_reg16(info, TCR);
-	if (info->idle_mode & HDLC_TXIDLE_CUSTOM_16) {
-		/* disable preamble, set idle size to 16 bits */
-		tcr = (tcr & ~(BIT6 + BIT5)) | BIT4;
-		/* MSB of 16 bit idle specified in tx preamble register (TPR) */
-		wr_reg8(info, TPR, (unsigned char)((info->idle_mode >> 8) & 0xff));
-	} else if (!(tcr & BIT6)) {
-		/* preamble is disabled, set idle size to 8 bits */
-		tcr &= ~(BIT5 + BIT4);
-	}
-	wr_reg16(info, TCR, tcr);
-
-	if (info->idle_mode & (HDLC_TXIDLE_CUSTOM_8 | HDLC_TXIDLE_CUSTOM_16)) {
-		/* LSB of custom tx idle specified in tx idle register */
-		val = (unsigned char)(info->idle_mode & 0xff);
-	} else {
-		/* standard 8 bit idle patterns */
-		switch(info->idle_mode)
-		{
-		case HDLC_TXIDLE_FLAGS:          val = 0x7e; break;
-		case HDLC_TXIDLE_ALT_ZEROS_ONES:
-		case HDLC_TXIDLE_ALT_MARK_SPACE: val = 0xaa; break;
-		case HDLC_TXIDLE_ZEROS:
-		case HDLC_TXIDLE_SPACE:          val = 0x00; break;
-		default:                         val = 0xff;
-		}
-	}
-
-	wr_reg8(info, TIR, val);
-}
-
-/*
- * get state of V24 status (input) signals
- */
-static void get_signals(struct slgt_info *info)
-{
-	unsigned short status = rd_reg16(info, SSR);
-
-	/* clear all serial signals except DTR and RTS */
-	info->signals &= SerialSignal_DTR + SerialSignal_RTS;
-
-	if (status & BIT3)
-		info->signals |= SerialSignal_DSR;
-	if (status & BIT2)
-		info->signals |= SerialSignal_CTS;
-	if (status & BIT1)
-		info->signals |= SerialSignal_DCD;
-	if (status & BIT0)
-		info->signals |= SerialSignal_RI;
-}
-
-/*
- * set V.24 Control Register based on current configuration
- */
-static void msc_set_vcr(struct slgt_info *info)
-{
-	unsigned char val = 0;
-
-	/* VCR (V.24 control)
-	 *
-	 * 07..04  serial IF select
-	 * 03      DTR
-	 * 02      RTS
-	 * 01      LL
-	 * 00      RL
-	 */
-
-	switch(info->if_mode & MGSL_INTERFACE_MASK)
-	{
-	case MGSL_INTERFACE_RS232:
-		val |= BIT5; /* 0010 */
-		break;
-	case MGSL_INTERFACE_V35:
-		val |= BIT7 + BIT6 + BIT5; /* 1110 */
-		break;
-	case MGSL_INTERFACE_RS422:
-		val |= BIT6; /* 0100 */
-		break;
-	}
-
-	if (info->if_mode & MGSL_INTERFACE_MSB_FIRST)
-		val |= BIT4;
-	if (info->signals & SerialSignal_DTR)
-		val |= BIT3;
-	if (info->signals & SerialSignal_RTS)
-		val |= BIT2;
-	if (info->if_mode & MGSL_INTERFACE_LL)
-		val |= BIT1;
-	if (info->if_mode & MGSL_INTERFACE_RL)
-		val |= BIT0;
-	wr_reg8(info, VCR, val);
-}
-
-/*
- * set state of V24 control (output) signals
- */
-static void set_signals(struct slgt_info *info)
-{
-	unsigned char val = rd_reg8(info, VCR);
-	if (info->signals & SerialSignal_DTR)
-		val |= BIT3;
-	else
-		val &= ~BIT3;
-	if (info->signals & SerialSignal_RTS)
-		val |= BIT2;
-	else
-		val &= ~BIT2;
-	wr_reg8(info, VCR, val);
-}
-
-/*
- * free range of receive DMA buffers (i to last)
- */
-static void free_rbufs(struct slgt_info *info, unsigned int i, unsigned int last)
-{
-	int done = 0;
-
-	while(!done) {
-		/* reset current buffer for reuse */
-		info->rbufs[i].status = 0;
-		set_desc_count(info->rbufs[i], info->rbuf_fill_level);
-		if (i == last)
-			done = 1;
-		if (++i == info->rbuf_count)
-			i = 0;
-	}
-	info->rbuf_current = i;
-}
-
-/*
- * mark all receive DMA buffers as free
- */
-static void reset_rbufs(struct slgt_info *info)
-{
-	free_rbufs(info, 0, info->rbuf_count - 1);
-	info->rbuf_fill_index = 0;
-	info->rbuf_fill_count = 0;
-}
-
-/*
- * pass receive HDLC frame to upper layer
- *
- * return true if frame available, otherwise false
- */
-static bool rx_get_frame(struct slgt_info *info)
-{
-	unsigned int start, end;
-	unsigned short status;
-	unsigned int framesize = 0;
-	unsigned long flags;
-	struct tty_struct *tty = info->port.tty;
-	unsigned char addr_field = 0xff;
-	unsigned int crc_size = 0;
-
-	switch (info->params.crc_type & HDLC_CRC_MASK) {
-	case HDLC_CRC_16_CCITT: crc_size = 2; break;
-	case HDLC_CRC_32_CCITT: crc_size = 4; break;
-	}
-
-check_again:
-
-	framesize = 0;
-	addr_field = 0xff;
-	start = end = info->rbuf_current;
-
-	for (;;) {
-		if (!desc_complete(info->rbufs[end]))
-			goto cleanup;
-
-		if (framesize == 0 && info->params.addr_filter != 0xff)
-			addr_field = info->rbufs[end].buf[0];
-
-		framesize += desc_count(info->rbufs[end]);
-
-		if (desc_eof(info->rbufs[end]))
-			break;
-
-		if (++end == info->rbuf_count)
-			end = 0;
-
-		if (end == info->rbuf_current) {
-			if (info->rx_enabled){
-				spin_lock_irqsave(&info->lock,flags);
-				rx_start(info);
-				spin_unlock_irqrestore(&info->lock,flags);
-			}
-			goto cleanup;
-		}
-	}
-
-	/* status
-	 *
-	 * 15      buffer complete
-	 * 14..06  reserved
-	 * 05..04  residue
-	 * 02      eof (end of frame)
-	 * 01      CRC error
-	 * 00      abort
-	 */
-	status = desc_status(info->rbufs[end]);
-
-	/* ignore CRC bit if not using CRC (bit is undefined) */
-	if ((info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_NONE)
-		status &= ~BIT1;
-
-	if (framesize == 0 ||
-		 (addr_field != 0xff && addr_field != info->params.addr_filter)) {
-		free_rbufs(info, start, end);
-		goto check_again;
-	}
-
-	if (framesize < (2 + crc_size) || status & BIT0) {
-		info->icount.rxshort++;
-		framesize = 0;
-	} else if (status & BIT1) {
-		info->icount.rxcrc++;
-		if (!(info->params.crc_type & HDLC_CRC_RETURN_EX))
-			framesize = 0;
-	}
-
-#if SYNCLINK_GENERIC_HDLC
-	if (framesize == 0) {
-		info->netdev->stats.rx_errors++;
-		info->netdev->stats.rx_frame_errors++;
-	}
-#endif
-
-	DBGBH(("%s rx frame status=%04X size=%d\n",
-		info->device_name, status, framesize));
-	DBGDATA(info, info->rbufs[start].buf, min_t(int, framesize, info->rbuf_fill_level), "rx");
-
-	if (framesize) {
-		if (!(info->params.crc_type & HDLC_CRC_RETURN_EX)) {
-			framesize -= crc_size;
-			crc_size = 0;
-		}
-
-		if (framesize > info->max_frame_size + crc_size)
-			info->icount.rxlong++;
-		else {
-			/* copy dma buffer(s) to contiguous temp buffer */
-			int copy_count = framesize;
-			int i = start;
-			unsigned char *p = info->tmp_rbuf;
-			info->tmp_rbuf_count = framesize;
-
-			info->icount.rxok++;
-
-			while(copy_count) {
-				int partial_count = min_t(int, copy_count, info->rbuf_fill_level);
-				memcpy(p, info->rbufs[i].buf, partial_count);
-				p += partial_count;
-				copy_count -= partial_count;
-				if (++i == info->rbuf_count)
-					i = 0;
-			}
-
-			if (info->params.crc_type & HDLC_CRC_RETURN_EX) {
-				*p = (status & BIT1) ? RX_CRC_ERROR : RX_OK;
-				framesize++;
-			}
-
-#if SYNCLINK_GENERIC_HDLC
-			if (info->netcount)
-				hdlcdev_rx(info,info->tmp_rbuf, framesize);
-			else
-#endif
-				ldisc_receive_buf(tty, info->tmp_rbuf, info->flag_buf, framesize);
-		}
-	}
-	free_rbufs(info, start, end);
-	return true;
-
-cleanup:
-	return false;
-}
-
-/*
- * pass receive buffer (RAW synchronous mode) to tty layer
- * return true if buffer available, otherwise false
- */
-static bool rx_get_buf(struct slgt_info *info)
-{
-	unsigned int i = info->rbuf_current;
-	unsigned int count;
-
-	if (!desc_complete(info->rbufs[i]))
-		return false;
-	count = desc_count(info->rbufs[i]);
-	switch(info->params.mode) {
-	case MGSL_MODE_MONOSYNC:
-	case MGSL_MODE_BISYNC:
-	case MGSL_MODE_XSYNC:
-		/* ignore residue in byte synchronous modes */
-		if (desc_residue(info->rbufs[i]))
-			count--;
-		break;
-	}
-	DBGDATA(info, info->rbufs[i].buf, count, "rx");
-	DBGINFO(("rx_get_buf size=%d\n", count));
-	if (count)
-		ldisc_receive_buf(info->port.tty, info->rbufs[i].buf,
-				  info->flag_buf, count);
-	free_rbufs(info, i, i);
-	return true;
-}
-
-static void reset_tbufs(struct slgt_info *info)
-{
-	unsigned int i;
-	info->tbuf_current = 0;
-	for (i=0 ; i < info->tbuf_count ; i++) {
-		info->tbufs[i].status = 0;
-		info->tbufs[i].count  = 0;
-	}
-}
-
-/*
- * return number of free transmit DMA buffers
- */
-static unsigned int free_tbuf_count(struct slgt_info *info)
-{
-	unsigned int count = 0;
-	unsigned int i = info->tbuf_current;
-
-	do
-	{
-		if (desc_count(info->tbufs[i]))
-			break; /* buffer in use */
-		++count;
-		if (++i == info->tbuf_count)
-			i=0;
-	} while (i != info->tbuf_current);
-
-	/* if tx DMA active, last zero count buffer is in use */
-	if (count && (rd_reg32(info, TDCSR) & BIT0))
-		--count;
-
-	return count;
-}
-
-/*
- * return number of bytes in unsent transmit DMA buffers
- * and the serial controller tx FIFO
- */
-static unsigned int tbuf_bytes(struct slgt_info *info)
-{
-	unsigned int total_count = 0;
-	unsigned int i = info->tbuf_current;
-	unsigned int reg_value;
-	unsigned int count;
-	unsigned int active_buf_count = 0;
-
-	/*
-	 * Add descriptor counts for all tx DMA buffers.
-	 * If count is zero (cleared by DMA controller after read),
-	 * the buffer is complete or is actively being read from.
-	 *
-	 * Record buf_count of last buffer with zero count starting
-	 * from current ring position. buf_count is mirror
-	 * copy of count and is not cleared by serial controller.
-	 * If DMA controller is active, that buffer is actively
-	 * being read so add to total.
-	 */
-	do {
-		count = desc_count(info->tbufs[i]);
-		if (count)
-			total_count += count;
-		else if (!total_count)
-			active_buf_count = info->tbufs[i].buf_count;
-		if (++i == info->tbuf_count)
-			i = 0;
-	} while (i != info->tbuf_current);
-
-	/* read tx DMA status register */
-	reg_value = rd_reg32(info, TDCSR);
-
-	/* if tx DMA active, last zero count buffer is in use */
-	if (reg_value & BIT0)
-		total_count += active_buf_count;
-
-	/* add tx FIFO count = reg_value[15..8] */
-	total_count += (reg_value >> 8) & 0xff;
-
-	/* if transmitter active add one byte for shift register */
-	if (info->tx_active)
-		total_count++;
-
-	return total_count;
-}
-
-/*
- * load data into transmit DMA buffer ring and start transmitter if needed
- * return true if data accepted, otherwise false (buffers full)
- */
-static bool tx_load(struct slgt_info *info, const char *buf, unsigned int size)
-{
-	unsigned short count;
-	unsigned int i;
-	struct slgt_desc *d;
-
-	/* check required buffer space */
-	if (DIV_ROUND_UP(size, DMABUFSIZE) > free_tbuf_count(info))
-		return false;
-
-	DBGDATA(info, buf, size, "tx");
-
-	/*
-	 * copy data to one or more DMA buffers in circular ring
-	 * tbuf_start   = first buffer for this data
-	 * tbuf_current = next free buffer
-	 *
-	 * Copy all data before making data visible to DMA controller by
-	 * setting descriptor count of the first buffer.
-	 * This prevents an active DMA controller from reading the first DMA
-	 * buffers of a frame and stopping before the final buffers are filled.
-	 */
-
-	info->tbuf_start = i = info->tbuf_current;
-
-	while (size) {
-		d = &info->tbufs[i];
-
-		count = (unsigned short)((size > DMABUFSIZE) ? DMABUFSIZE : size);
-		memcpy(d->buf, buf, count);
-
-		size -= count;
-		buf  += count;
-
-		/*
-		 * set EOF bit for last buffer of HDLC frame or
-		 * for every buffer in raw mode
-		 */
-		if ((!size && info->params.mode == MGSL_MODE_HDLC) ||
-		    info->params.mode == MGSL_MODE_RAW)
-			set_desc_eof(*d, 1);
-		else
-			set_desc_eof(*d, 0);
-
-		/* set descriptor count for all but first buffer */
-		if (i != info->tbuf_start)
-			set_desc_count(*d, count);
-		d->buf_count = count;
-
-		if (++i == info->tbuf_count)
-			i = 0;
-	}
-
-	info->tbuf_current = i;
-
-	/* set first buffer count to make new data visible to DMA controller */
-	d = &info->tbufs[info->tbuf_start];
-	set_desc_count(*d, d->buf_count);
-
-	/* start transmitter if needed and update transmit timeout */
-	if (!info->tx_active)
-		tx_start(info);
-	update_tx_timer(info);
-
-	return true;
-}
-
-static int register_test(struct slgt_info *info)
-{
-	static unsigned short patterns[] =
-		{0x0000, 0xffff, 0xaaaa, 0x5555, 0x6969, 0x9696};
-	static unsigned int count = ARRAY_SIZE(patterns);
-	unsigned int i;
-	int rc = 0;
-
-	for (i=0 ; i < count ; i++) {
-		wr_reg16(info, TIR, patterns[i]);
-		wr_reg16(info, BDR, patterns[(i+1)%count]);
-		if ((rd_reg16(info, TIR) != patterns[i]) ||
-		    (rd_reg16(info, BDR) != patterns[(i+1)%count])) {
-			rc = -ENODEV;
-			break;
-		}
-	}
-	info->gpio_present = (rd_reg32(info, JCR) & BIT5) ? 1 : 0;
-	info->init_error = rc ? 0 : DiagStatus_AddressFailure;
-	return rc;
-}
-
-static int irq_test(struct slgt_info *info)
-{
-	unsigned long timeout;
-	unsigned long flags;
-	struct tty_struct *oldtty = info->port.tty;
-	u32 speed = info->params.data_rate;
-
-	info->params.data_rate = 921600;
-	info->port.tty = NULL;
-
-	spin_lock_irqsave(&info->lock, flags);
-	async_mode(info);
-	slgt_irq_on(info, IRQ_TXIDLE);
-
-	/* enable transmitter */
-	wr_reg16(info, TCR,
-		(unsigned short)(rd_reg16(info, TCR) | BIT1));
-
-	/* write one byte and wait for tx idle */
-	wr_reg16(info, TDR, 0);
-
-	/* assume failure */
-	info->init_error = DiagStatus_IrqFailure;
-	info->irq_occurred = false;
-
-	spin_unlock_irqrestore(&info->lock, flags);
-
-	timeout=100;
-	while(timeout-- && !info->irq_occurred)
-		msleep_interruptible(10);
-
-	spin_lock_irqsave(&info->lock,flags);
-	reset_port(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	info->params.data_rate = speed;
-	info->port.tty = oldtty;
-
-	info->init_error = info->irq_occurred ? 0 : DiagStatus_IrqFailure;
-	return info->irq_occurred ? 0 : -ENODEV;
-}
-
-static int loopback_test_rx(struct slgt_info *info)
-{
-	unsigned char *src, *dest;
-	int count;
-
-	if (desc_complete(info->rbufs[0])) {
-		count = desc_count(info->rbufs[0]);
-		src   = info->rbufs[0].buf;
-		dest  = info->tmp_rbuf;
-
-		for( ; count ; count-=2, src+=2) {
-			/* src=data byte (src+1)=status byte */
-			if (!(*(src+1) & (BIT9 + BIT8))) {
-				*dest = *src;
-				dest++;
-				info->tmp_rbuf_count++;
-			}
-		}
-		DBGDATA(info, info->tmp_rbuf, info->tmp_rbuf_count, "rx");
-		return 1;
-	}
-	return 0;
-}
-
-static int loopback_test(struct slgt_info *info)
-{
-#define TESTFRAMESIZE 20
-
-	unsigned long timeout;
-	u16 count = TESTFRAMESIZE;
-	unsigned char buf[TESTFRAMESIZE];
-	int rc = -ENODEV;
-	unsigned long flags;
-
-	struct tty_struct *oldtty = info->port.tty;
-	MGSL_PARAMS params;
-
-	memcpy(&params, &info->params, sizeof(params));
-
-	info->params.mode = MGSL_MODE_ASYNC;
-	info->params.data_rate = 921600;
-	info->params.loopback = 1;
-	info->port.tty = NULL;
-
-	/* build and send transmit frame */
-	for (count = 0; count < TESTFRAMESIZE; ++count)
-		buf[count] = (unsigned char)count;
-
-	info->tmp_rbuf_count = 0;
-	memset(info->tmp_rbuf, 0, TESTFRAMESIZE);
-
-	/* program hardware for HDLC and enabled receiver */
-	spin_lock_irqsave(&info->lock,flags);
-	async_mode(info);
-	rx_start(info);
-	tx_load(info, buf, count);
-	spin_unlock_irqrestore(&info->lock, flags);
-
-	/* wait for receive complete */
-	for (timeout = 100; timeout; --timeout) {
-		msleep_interruptible(10);
-		if (loopback_test_rx(info)) {
-			rc = 0;
-			break;
-		}
-	}
-
-	/* verify received frame length and contents */
-	if (!rc && (info->tmp_rbuf_count != count ||
-		  memcmp(buf, info->tmp_rbuf, count))) {
-		rc = -ENODEV;
-	}
-
-	spin_lock_irqsave(&info->lock,flags);
-	reset_adapter(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	memcpy(&info->params, &params, sizeof(info->params));
-	info->port.tty = oldtty;
-
-	info->init_error = rc ? DiagStatus_DmaFailure : 0;
-	return rc;
-}
-
-static int adapter_test(struct slgt_info *info)
-{
-	DBGINFO(("testing %s\n", info->device_name));
-	if (register_test(info) < 0) {
-		printk("register test failure %s addr=%08X\n",
-			info->device_name, info->phys_reg_addr);
-	} else if (irq_test(info) < 0) {
-		printk("IRQ test failure %s IRQ=%d\n",
-			info->device_name, info->irq_level);
-	} else if (loopback_test(info) < 0) {
-		printk("loopback test failure %s\n", info->device_name);
-	}
-	return info->init_error;
-}
-
-/*
- * transmit timeout handler
- */
-static void tx_timeout(unsigned long context)
-{
-	struct slgt_info *info = (struct slgt_info*)context;
-	unsigned long flags;
-
-	DBGINFO(("%s tx_timeout\n", info->device_name));
-	if(info->tx_active && info->params.mode == MGSL_MODE_HDLC) {
-		info->icount.txtimeout++;
-	}
-	spin_lock_irqsave(&info->lock,flags);
-	tx_stop(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-#if SYNCLINK_GENERIC_HDLC
-	if (info->netcount)
-		hdlcdev_tx_done(info);
-	else
-#endif
-		bh_transmit(info);
-}
-
-/*
- * receive buffer polling timer
- */
-static void rx_timeout(unsigned long context)
-{
-	struct slgt_info *info = (struct slgt_info*)context;
-	unsigned long flags;
-
-	DBGINFO(("%s rx_timeout\n", info->device_name));
-	spin_lock_irqsave(&info->lock, flags);
-	info->pending_bh |= BH_RECEIVE;
-	spin_unlock_irqrestore(&info->lock, flags);
-	bh_handler(&info->task);
-}
-
diff --git a/drivers/char/synclinkmp.c b/drivers/char/synclinkmp.c
deleted file mode 100644
index 327343694473..000000000000
--- a/drivers/char/synclinkmp.c
+++ /dev/null
@@ -1,5600 +0,0 @@
-/*
- * $Id: synclinkmp.c,v 4.38 2005/07/15 13:29:44 paulkf Exp $
- *
- * Device driver for Microgate SyncLink Multiport
- * high speed multiprotocol serial adapter.
- *
- * written by Paul Fulghum for Microgate Corporation
- * paulkf@microgate.com
- *
- * Microgate and SyncLink are trademarks of Microgate Corporation
- *
- * Derived from serial.c written by Theodore Ts'o and Linus Torvalds
- * This code is released under the GNU General Public License (GPL)
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#define VERSION(ver,rel,seq) (((ver)<<16) | ((rel)<<8) | (seq))
-#if defined(__i386__)
-#  define BREAKPOINT() asm("   int $3");
-#else
-#  define BREAKPOINT() { }
-#endif
-
-#define MAX_DEVICES 12
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/serial.h>
-#include <linux/major.h>
-#include <linux/string.h>
-#include <linux/fcntl.h>
-#include <linux/ptrace.h>
-#include <linux/ioport.h>
-#include <linux/mm.h>
-#include <linux/seq_file.h>
-#include <linux/slab.h>
-#include <linux/netdevice.h>
-#include <linux/vmalloc.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/ioctl.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/dma.h>
-#include <linux/bitops.h>
-#include <asm/types.h>
-#include <linux/termios.h>
-#include <linux/workqueue.h>
-#include <linux/hdlc.h>
-#include <linux/synclink.h>
-
-#if defined(CONFIG_HDLC) || (defined(CONFIG_HDLC_MODULE) && defined(CONFIG_SYNCLINKMP_MODULE))
-#define SYNCLINK_GENERIC_HDLC 1
-#else
-#define SYNCLINK_GENERIC_HDLC 0
-#endif
-
-#define GET_USER(error,value,addr) error = get_user(value,addr)
-#define COPY_FROM_USER(error,dest,src,size) error = copy_from_user(dest,src,size) ? -EFAULT : 0
-#define PUT_USER(error,value,addr) error = put_user(value,addr)
-#define COPY_TO_USER(error,dest,src,size) error = copy_to_user(dest,src,size) ? -EFAULT : 0
-
-#include <asm/uaccess.h>
-
-static MGSL_PARAMS default_params = {
-	MGSL_MODE_HDLC,			/* unsigned long mode */
-	0,				/* unsigned char loopback; */
-	HDLC_FLAG_UNDERRUN_ABORT15,	/* unsigned short flags; */
-	HDLC_ENCODING_NRZI_SPACE,	/* unsigned char encoding; */
-	0,				/* unsigned long clock_speed; */
-	0xff,				/* unsigned char addr_filter; */
-	HDLC_CRC_16_CCITT,		/* unsigned short crc_type; */
-	HDLC_PREAMBLE_LENGTH_8BITS,	/* unsigned char preamble_length; */
-	HDLC_PREAMBLE_PATTERN_NONE,	/* unsigned char preamble; */
-	9600,				/* unsigned long data_rate; */
-	8,				/* unsigned char data_bits; */
-	1,				/* unsigned char stop_bits; */
-	ASYNC_PARITY_NONE		/* unsigned char parity; */
-};
-
-/* size in bytes of DMA data buffers */
-#define SCABUFSIZE 	1024
-#define SCA_MEM_SIZE	0x40000
-#define SCA_BASE_SIZE   512
-#define SCA_REG_SIZE    16
-#define SCA_MAX_PORTS   4
-#define SCAMAXDESC 	128
-
-#define	BUFFERLISTSIZE	4096
-
-/* SCA-I style DMA buffer descriptor */
-typedef struct _SCADESC
-{
-	u16	next;		/* lower l6 bits of next descriptor addr */
-	u16	buf_ptr;	/* lower 16 bits of buffer addr */
-	u8	buf_base;	/* upper 8 bits of buffer addr */
-	u8	pad1;
-	u16	length;		/* length of buffer */
-	u8	status;		/* status of buffer */
-	u8	pad2;
-} SCADESC, *PSCADESC;
-
-typedef struct _SCADESC_EX
-{
-	/* device driver bookkeeping section */
-	char 	*virt_addr;    	/* virtual address of data buffer */
-	u16	phys_entry;	/* lower 16-bits of physical address of this descriptor */
-} SCADESC_EX, *PSCADESC_EX;
-
-/* The queue of BH actions to be performed */
-
-#define BH_RECEIVE  1
-#define BH_TRANSMIT 2
-#define BH_STATUS   4
-
-#define IO_PIN_SHUTDOWN_LIMIT 100
-
-struct	_input_signal_events {
-	int	ri_up;
-	int	ri_down;
-	int	dsr_up;
-	int	dsr_down;
-	int	dcd_up;
-	int	dcd_down;
-	int	cts_up;
-	int	cts_down;
-};
-
-/*
- * Device instance data structure
- */
-typedef struct _synclinkmp_info {
-	void *if_ptr;				/* General purpose pointer (used by SPPP) */
-	int			magic;
-	struct tty_port		port;
-	int			line;
-	unsigned short		close_delay;
-	unsigned short		closing_wait;	/* time to wait before closing */
-
-	struct mgsl_icount	icount;
-
-	int			timeout;
-	int			x_char;		/* xon/xoff character */
-	u16			read_status_mask1;  /* break detection (SR1 indications) */
-	u16			read_status_mask2;  /* parity/framing/overun (SR2 indications) */
-	unsigned char 		ignore_status_mask1;  /* break detection (SR1 indications) */
-	unsigned char		ignore_status_mask2;  /* parity/framing/overun (SR2 indications) */
-	unsigned char 		*tx_buf;
-	int			tx_put;
-	int			tx_get;
-	int			tx_count;
-
-	wait_queue_head_t	status_event_wait_q;
-	wait_queue_head_t	event_wait_q;
-	struct timer_list	tx_timer;	/* HDLC transmit timeout timer */
-	struct _synclinkmp_info	*next_device;	/* device list link */
-	struct timer_list	status_timer;	/* input signal status check timer */
-
-	spinlock_t lock;		/* spinlock for synchronizing with ISR */
-	struct work_struct task;	 		/* task structure for scheduling bh */
-
-	u32 max_frame_size;			/* as set by device config */
-
-	u32 pending_bh;
-
-	bool bh_running;				/* Protection from multiple */
-	int isr_overflow;
-	bool bh_requested;
-
-	int dcd_chkcount;			/* check counts to prevent */
-	int cts_chkcount;			/* too many IRQs if a signal */
-	int dsr_chkcount;			/* is floating */
-	int ri_chkcount;
-
-	char *buffer_list;			/* virtual address of Rx & Tx buffer lists */
-	unsigned long buffer_list_phys;
-
-	unsigned int rx_buf_count;		/* count of total allocated Rx buffers */
-	SCADESC *rx_buf_list;   		/* list of receive buffer entries */
-	SCADESC_EX rx_buf_list_ex[SCAMAXDESC]; /* list of receive buffer entries */
-	unsigned int current_rx_buf;
-
-	unsigned int tx_buf_count;		/* count of total allocated Tx buffers */
-	SCADESC *tx_buf_list;		/* list of transmit buffer entries */
-	SCADESC_EX tx_buf_list_ex[SCAMAXDESC]; /* list of transmit buffer entries */
-	unsigned int last_tx_buf;
-
-	unsigned char *tmp_rx_buf;
-	unsigned int tmp_rx_buf_count;
-
-	bool rx_enabled;
-	bool rx_overflow;
-
-	bool tx_enabled;
-	bool tx_active;
-	u32 idle_mode;
-
-	unsigned char ie0_value;
-	unsigned char ie1_value;
-	unsigned char ie2_value;
-	unsigned char ctrlreg_value;
-	unsigned char old_signals;
-
-	char device_name[25];			/* device instance name */
-
-	int port_count;
-	int adapter_num;
-	int port_num;
-
-	struct _synclinkmp_info *port_array[SCA_MAX_PORTS];
-
-	unsigned int bus_type;			/* expansion bus type (ISA,EISA,PCI) */
-
-	unsigned int irq_level;			/* interrupt level */
-	unsigned long irq_flags;
-	bool irq_requested;			/* true if IRQ requested */
-
-	MGSL_PARAMS params;			/* communications parameters */
-
-	unsigned char serial_signals;		/* current serial signal states */
-
-	bool irq_occurred;			/* for diagnostics use */
-	unsigned int init_error;		/* Initialization startup error */
-
-	u32 last_mem_alloc;
-	unsigned char* memory_base;		/* shared memory address (PCI only) */
-	u32 phys_memory_base;
-    	int shared_mem_requested;
-
-	unsigned char* sca_base;		/* HD64570 SCA Memory address */
-	u32 phys_sca_base;
-	u32 sca_offset;
-	bool sca_base_requested;
-
-	unsigned char* lcr_base;		/* local config registers (PCI only) */
-	u32 phys_lcr_base;
-	u32 lcr_offset;
-	int lcr_mem_requested;
-
-	unsigned char* statctrl_base;		/* status/control register memory */
-	u32 phys_statctrl_base;
-	u32 statctrl_offset;
-	bool sca_statctrl_requested;
-
-	u32 misc_ctrl_value;
-	char flag_buf[MAX_ASYNC_BUFFER_SIZE];
-	char char_buf[MAX_ASYNC_BUFFER_SIZE];
-	bool drop_rts_on_tx_done;
-
-	struct	_input_signal_events	input_signal_events;
-
-	/* SPPP/Cisco HDLC device parts */
-	int netcount;
-	spinlock_t netlock;
-
-#if SYNCLINK_GENERIC_HDLC
-	struct net_device *netdev;
-#endif
-
-} SLMP_INFO;
-
-#define MGSL_MAGIC 0x5401
-
-/*
- * define serial signal status change macros
- */
-#define	MISCSTATUS_DCD_LATCHED	(SerialSignal_DCD<<8)	/* indicates change in DCD */
-#define MISCSTATUS_RI_LATCHED	(SerialSignal_RI<<8)	/* indicates change in RI */
-#define MISCSTATUS_CTS_LATCHED	(SerialSignal_CTS<<8)	/* indicates change in CTS */
-#define MISCSTATUS_DSR_LATCHED	(SerialSignal_DSR<<8)	/* change in DSR */
-
-/* Common Register macros */
-#define LPR	0x00
-#define PABR0	0x02
-#define PABR1	0x03
-#define WCRL	0x04
-#define WCRM	0x05
-#define WCRH	0x06
-#define DPCR	0x08
-#define DMER	0x09
-#define ISR0	0x10
-#define ISR1	0x11
-#define ISR2	0x12
-#define IER0	0x14
-#define IER1	0x15
-#define IER2	0x16
-#define ITCR	0x18
-#define INTVR 	0x1a
-#define IMVR	0x1c
-
-/* MSCI Register macros */
-#define TRB	0x20
-#define TRBL	0x20
-#define TRBH	0x21
-#define SR0	0x22
-#define SR1	0x23
-#define SR2	0x24
-#define SR3	0x25
-#define FST	0x26
-#define IE0	0x28
-#define IE1	0x29
-#define IE2	0x2a
-#define FIE	0x2b
-#define CMD	0x2c
-#define MD0	0x2e
-#define MD1	0x2f
-#define MD2	0x30
-#define CTL	0x31
-#define SA0	0x32
-#define SA1	0x33
-#define IDL	0x34
-#define TMC	0x35
-#define RXS	0x36
-#define TXS	0x37
-#define TRC0	0x38
-#define TRC1	0x39
-#define RRC	0x3a
-#define CST0	0x3c
-#define CST1	0x3d
-
-/* Timer Register Macros */
-#define TCNT	0x60
-#define TCNTL	0x60
-#define TCNTH	0x61
-#define TCONR	0x62
-#define TCONRL	0x62
-#define TCONRH	0x63
-#define TMCS	0x64
-#define TEPR	0x65
-
-/* DMA Controller Register macros */
-#define DARL	0x80
-#define DARH	0x81
-#define DARB	0x82
-#define BAR	0x80
-#define BARL	0x80
-#define BARH	0x81
-#define BARB	0x82
-#define SAR	0x84
-#define SARL	0x84
-#define SARH	0x85
-#define SARB	0x86
-#define CPB	0x86
-#define CDA	0x88
-#define CDAL	0x88
-#define CDAH	0x89
-#define EDA	0x8a
-#define EDAL	0x8a
-#define EDAH	0x8b
-#define BFL	0x8c
-#define BFLL	0x8c
-#define BFLH	0x8d
-#define BCR	0x8e
-#define BCRL	0x8e
-#define BCRH	0x8f
-#define DSR	0x90
-#define DMR	0x91
-#define FCT	0x93
-#define DIR	0x94
-#define DCMD	0x95
-
-/* combine with timer or DMA register address */
-#define TIMER0	0x00
-#define TIMER1	0x08
-#define TIMER2	0x10
-#define TIMER3	0x18
-#define RXDMA 	0x00
-#define TXDMA 	0x20
-
-/* SCA Command Codes */
-#define NOOP		0x00
-#define TXRESET		0x01
-#define TXENABLE	0x02
-#define TXDISABLE	0x03
-#define TXCRCINIT	0x04
-#define TXCRCEXCL	0x05
-#define TXEOM		0x06
-#define TXABORT		0x07
-#define MPON		0x08
-#define TXBUFCLR	0x09
-#define RXRESET		0x11
-#define RXENABLE	0x12
-#define RXDISABLE	0x13
-#define RXCRCINIT	0x14
-#define RXREJECT	0x15
-#define SEARCHMP	0x16
-#define RXCRCEXCL	0x17
-#define RXCRCCALC	0x18
-#define CHRESET		0x21
-#define HUNT		0x31
-
-/* DMA command codes */
-#define SWABORT		0x01
-#define FEICLEAR	0x02
-
-/* IE0 */
-#define TXINTE 		BIT7
-#define RXINTE 		BIT6
-#define TXRDYE 		BIT1
-#define RXRDYE 		BIT0
-
-/* IE1 & SR1 */
-#define UDRN   	BIT7
-#define IDLE   	BIT6
-#define SYNCD  	BIT4
-#define FLGD   	BIT4
-#define CCTS   	BIT3
-#define CDCD   	BIT2
-#define BRKD   	BIT1
-#define ABTD   	BIT1
-#define GAPD   	BIT1
-#define BRKE   	BIT0
-#define IDLD	BIT0
-
-/* IE2 & SR2 */
-#define EOM	BIT7
-#define PMP	BIT6
-#define SHRT	BIT6
-#define PE	BIT5
-#define ABT	BIT5
-#define FRME	BIT4
-#define RBIT	BIT4
-#define OVRN	BIT3
-#define CRCE	BIT2
-
-
-/*
- * Global linked list of SyncLink devices
- */
-static SLMP_INFO *synclinkmp_device_list = NULL;
-static int synclinkmp_adapter_count = -1;
-static int synclinkmp_device_count = 0;
-
-/*
- * Set this param to non-zero to load eax with the
- * .text section address and breakpoint on module load.
- * This is useful for use with gdb and add-symbol-file command.
- */
-static int break_on_load = 0;
-
-/*
- * Driver major number, defaults to zero to get auto
- * assigned major number. May be forced as module parameter.
- */
-static int ttymajor = 0;
-
-/*
- * Array of user specified options for ISA adapters.
- */
-static int debug_level = 0;
-static int maxframe[MAX_DEVICES] = {0,};
-
-module_param(break_on_load, bool, 0);
-module_param(ttymajor, int, 0);
-module_param(debug_level, int, 0);
-module_param_array(maxframe, int, NULL, 0);
-
-static char *driver_name = "SyncLink MultiPort driver";
-static char *driver_version = "$Revision: 4.38 $";
-
-static int synclinkmp_init_one(struct pci_dev *dev,const struct pci_device_id *ent);
-static void synclinkmp_remove_one(struct pci_dev *dev);
-
-static struct pci_device_id synclinkmp_pci_tbl[] = {
-	{ PCI_VENDOR_ID_MICROGATE, PCI_DEVICE_ID_MICROGATE_SCA, PCI_ANY_ID, PCI_ANY_ID, },
-	{ 0, }, /* terminate list */
-};
-MODULE_DEVICE_TABLE(pci, synclinkmp_pci_tbl);
-
-MODULE_LICENSE("GPL");
-
-static struct pci_driver synclinkmp_pci_driver = {
-	.name		= "synclinkmp",
-	.id_table	= synclinkmp_pci_tbl,
-	.probe		= synclinkmp_init_one,
-	.remove		= __devexit_p(synclinkmp_remove_one),
-};
-
-
-static struct tty_driver *serial_driver;
-
-/* number of characters left in xmit buffer before we ask for more */
-#define WAKEUP_CHARS 256
-
-
-/* tty callbacks */
-
-static int  open(struct tty_struct *tty, struct file * filp);
-static void close(struct tty_struct *tty, struct file * filp);
-static void hangup(struct tty_struct *tty);
-static void set_termios(struct tty_struct *tty, struct ktermios *old_termios);
-
-static int  write(struct tty_struct *tty, const unsigned char *buf, int count);
-static int put_char(struct tty_struct *tty, unsigned char ch);
-static void send_xchar(struct tty_struct *tty, char ch);
-static void wait_until_sent(struct tty_struct *tty, int timeout);
-static int  write_room(struct tty_struct *tty);
-static void flush_chars(struct tty_struct *tty);
-static void flush_buffer(struct tty_struct *tty);
-static void tx_hold(struct tty_struct *tty);
-static void tx_release(struct tty_struct *tty);
-
-static int  ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg);
-static int  chars_in_buffer(struct tty_struct *tty);
-static void throttle(struct tty_struct * tty);
-static void unthrottle(struct tty_struct * tty);
-static int set_break(struct tty_struct *tty, int break_state);
-
-#if SYNCLINK_GENERIC_HDLC
-#define dev_to_port(D) (dev_to_hdlc(D)->priv)
-static void hdlcdev_tx_done(SLMP_INFO *info);
-static void hdlcdev_rx(SLMP_INFO *info, char *buf, int size);
-static int  hdlcdev_init(SLMP_INFO *info);
-static void hdlcdev_exit(SLMP_INFO *info);
-#endif
-
-/* ioctl handlers */
-
-static int  get_stats(SLMP_INFO *info, struct mgsl_icount __user *user_icount);
-static int  get_params(SLMP_INFO *info, MGSL_PARAMS __user *params);
-static int  set_params(SLMP_INFO *info, MGSL_PARAMS __user *params);
-static int  get_txidle(SLMP_INFO *info, int __user *idle_mode);
-static int  set_txidle(SLMP_INFO *info, int idle_mode);
-static int  tx_enable(SLMP_INFO *info, int enable);
-static int  tx_abort(SLMP_INFO *info);
-static int  rx_enable(SLMP_INFO *info, int enable);
-static int  modem_input_wait(SLMP_INFO *info,int arg);
-static int  wait_mgsl_event(SLMP_INFO *info, int __user *mask_ptr);
-static int  tiocmget(struct tty_struct *tty);
-static int  tiocmset(struct tty_struct *tty,
-			unsigned int set, unsigned int clear);
-static int  set_break(struct tty_struct *tty, int break_state);
-
-static void add_device(SLMP_INFO *info);
-static void device_init(int adapter_num, struct pci_dev *pdev);
-static int  claim_resources(SLMP_INFO *info);
-static void release_resources(SLMP_INFO *info);
-
-static int  startup(SLMP_INFO *info);
-static int  block_til_ready(struct tty_struct *tty, struct file * filp,SLMP_INFO *info);
-static int carrier_raised(struct tty_port *port);
-static void shutdown(SLMP_INFO *info);
-static void program_hw(SLMP_INFO *info);
-static void change_params(SLMP_INFO *info);
-
-static bool init_adapter(SLMP_INFO *info);
-static bool register_test(SLMP_INFO *info);
-static bool irq_test(SLMP_INFO *info);
-static bool loopback_test(SLMP_INFO *info);
-static int  adapter_test(SLMP_INFO *info);
-static bool memory_test(SLMP_INFO *info);
-
-static void reset_adapter(SLMP_INFO *info);
-static void reset_port(SLMP_INFO *info);
-static void async_mode(SLMP_INFO *info);
-static void hdlc_mode(SLMP_INFO *info);
-
-static void rx_stop(SLMP_INFO *info);
-static void rx_start(SLMP_INFO *info);
-static void rx_reset_buffers(SLMP_INFO *info);
-static void rx_free_frame_buffers(SLMP_INFO *info, unsigned int first, unsigned int last);
-static bool rx_get_frame(SLMP_INFO *info);
-
-static void tx_start(SLMP_INFO *info);
-static void tx_stop(SLMP_INFO *info);
-static void tx_load_fifo(SLMP_INFO *info);
-static void tx_set_idle(SLMP_INFO *info);
-static void tx_load_dma_buffer(SLMP_INFO *info, const char *buf, unsigned int count);
-
-static void get_signals(SLMP_INFO *info);
-static void set_signals(SLMP_INFO *info);
-static void enable_loopback(SLMP_INFO *info, int enable);
-static void set_rate(SLMP_INFO *info, u32 data_rate);
-
-static int  bh_action(SLMP_INFO *info);
-static void bh_handler(struct work_struct *work);
-static void bh_receive(SLMP_INFO *info);
-static void bh_transmit(SLMP_INFO *info);
-static void bh_status(SLMP_INFO *info);
-static void isr_timer(SLMP_INFO *info);
-static void isr_rxint(SLMP_INFO *info);
-static void isr_rxrdy(SLMP_INFO *info);
-static void isr_txint(SLMP_INFO *info);
-static void isr_txrdy(SLMP_INFO *info);
-static void isr_rxdmaok(SLMP_INFO *info);
-static void isr_rxdmaerror(SLMP_INFO *info);
-static void isr_txdmaok(SLMP_INFO *info);
-static void isr_txdmaerror(SLMP_INFO *info);
-static void isr_io_pin(SLMP_INFO *info, u16 status);
-
-static int  alloc_dma_bufs(SLMP_INFO *info);
-static void free_dma_bufs(SLMP_INFO *info);
-static int  alloc_buf_list(SLMP_INFO *info);
-static int  alloc_frame_bufs(SLMP_INFO *info, SCADESC *list, SCADESC_EX *list_ex,int count);
-static int  alloc_tmp_rx_buf(SLMP_INFO *info);
-static void free_tmp_rx_buf(SLMP_INFO *info);
-
-static void load_pci_memory(SLMP_INFO *info, char* dest, const char* src, unsigned short count);
-static void trace_block(SLMP_INFO *info, const char* data, int count, int xmit);
-static void tx_timeout(unsigned long context);
-static void status_timeout(unsigned long context);
-
-static unsigned char read_reg(SLMP_INFO *info, unsigned char addr);
-static void write_reg(SLMP_INFO *info, unsigned char addr, unsigned char val);
-static u16 read_reg16(SLMP_INFO *info, unsigned char addr);
-static void write_reg16(SLMP_INFO *info, unsigned char addr, u16 val);
-static unsigned char read_status_reg(SLMP_INFO * info);
-static void write_control_reg(SLMP_INFO * info);
-
-
-static unsigned char rx_active_fifo_level = 16;	// rx request FIFO activation level in bytes
-static unsigned char tx_active_fifo_level = 16;	// tx request FIFO activation level in bytes
-static unsigned char tx_negate_fifo_level = 32;	// tx request FIFO negation level in bytes
-
-static u32 misc_ctrl_value = 0x007e4040;
-static u32 lcr1_brdr_value = 0x00800028;
-
-static u32 read_ahead_count = 8;
-
-/* DPCR, DMA Priority Control
- *
- * 07..05  Not used, must be 0
- * 04      BRC, bus release condition: 0=all transfers complete
- *              1=release after 1 xfer on all channels
- * 03      CCC, channel change condition: 0=every cycle
- *              1=after each channel completes all xfers
- * 02..00  PR<2..0>, priority 100=round robin
- *
- * 00000100 = 0x00
- */
-static unsigned char dma_priority = 0x04;
-
-// Number of bytes that can be written to shared RAM
-// in a single write operation
-static u32 sca_pci_load_interval = 64;
-
-/*
- * 1st function defined in .text section. Calling this function in
- * init_module() followed by a breakpoint allows a remote debugger
- * (gdb) to get the .text address for the add-symbol-file command.
- * This allows remote debugging of dynamically loadable modules.
- */
-static void* synclinkmp_get_text_ptr(void);
-static void* synclinkmp_get_text_ptr(void) {return synclinkmp_get_text_ptr;}
-
-static inline int sanity_check(SLMP_INFO *info,
-			       char *name, const char *routine)
-{
-#ifdef SANITY_CHECK
-	static const char *badmagic =
-		"Warning: bad magic number for synclinkmp_struct (%s) in %s\n";
-	static const char *badinfo =
-		"Warning: null synclinkmp_struct for (%s) in %s\n";
-
-	if (!info) {
-		printk(badinfo, name, routine);
-		return 1;
-	}
-	if (info->magic != MGSL_MAGIC) {
-		printk(badmagic, name, routine);
-		return 1;
-	}
-#else
-	if (!info)
-		return 1;
-#endif
-	return 0;
-}
-
-/**
- * line discipline callback wrappers
- *
- * The wrappers maintain line discipline references
- * while calling into the line discipline.
- *
- * ldisc_receive_buf  - pass receive data to line discipline
- */
-
-static void ldisc_receive_buf(struct tty_struct *tty,
-			      const __u8 *data, char *flags, int count)
-{
-	struct tty_ldisc *ld;
-	if (!tty)
-		return;
-	ld = tty_ldisc_ref(tty);
-	if (ld) {
-		if (ld->ops->receive_buf)
-			ld->ops->receive_buf(tty, data, flags, count);
-		tty_ldisc_deref(ld);
-	}
-}
-
-/* tty callbacks */
-
-/* Called when a port is opened.  Init and enable port.
- */
-static int open(struct tty_struct *tty, struct file *filp)
-{
-	SLMP_INFO *info;
-	int retval, line;
-	unsigned long flags;
-
-	line = tty->index;
-	if ((line < 0) || (line >= synclinkmp_device_count)) {
-		printk("%s(%d): open with invalid line #%d.\n",
-			__FILE__,__LINE__,line);
-		return -ENODEV;
-	}
-
-	info = synclinkmp_device_list;
-	while(info && info->line != line)
-		info = info->next_device;
-	if (sanity_check(info, tty->name, "open"))
-		return -ENODEV;
-	if ( info->init_error ) {
-		printk("%s(%d):%s device is not allocated, init error=%d\n",
-			__FILE__,__LINE__,info->device_name,info->init_error);
-		return -ENODEV;
-	}
-
-	tty->driver_data = info;
-	info->port.tty = tty;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s open(), old ref count = %d\n",
-			 __FILE__,__LINE__,tty->driver->name, info->port.count);
-
-	/* If port is closing, signal caller to try again */
-	if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){
-		if (info->port.flags & ASYNC_CLOSING)
-			interruptible_sleep_on(&info->port.close_wait);
-		retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ?
-			-EAGAIN : -ERESTARTSYS);
-		goto cleanup;
-	}
-
-	info->port.tty->low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
-
-	spin_lock_irqsave(&info->netlock, flags);
-	if (info->netcount) {
-		retval = -EBUSY;
-		spin_unlock_irqrestore(&info->netlock, flags);
-		goto cleanup;
-	}
-	info->port.count++;
-	spin_unlock_irqrestore(&info->netlock, flags);
-
-	if (info->port.count == 1) {
-		/* 1st open on this device, init hardware */
-		retval = startup(info);
-		if (retval < 0)
-			goto cleanup;
-	}
-
-	retval = block_til_ready(tty, filp, info);
-	if (retval) {
-		if (debug_level >= DEBUG_LEVEL_INFO)
-			printk("%s(%d):%s block_til_ready() returned %d\n",
-				 __FILE__,__LINE__, info->device_name, retval);
-		goto cleanup;
-	}
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s open() success\n",
-			 __FILE__,__LINE__, info->device_name);
-	retval = 0;
-
-cleanup:
-	if (retval) {
-		if (tty->count == 1)
-			info->port.tty = NULL; /* tty layer will release tty struct */
-		if(info->port.count)
-			info->port.count--;
-	}
-
-	return retval;
-}
-
-/* Called when port is closed. Wait for remaining data to be
- * sent. Disable port and free resources.
- */
-static void close(struct tty_struct *tty, struct file *filp)
-{
-	SLMP_INFO * info = tty->driver_data;
-
-	if (sanity_check(info, tty->name, "close"))
-		return;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s close() entry, count=%d\n",
-			 __FILE__,__LINE__, info->device_name, info->port.count);
-
-	if (tty_port_close_start(&info->port, tty, filp) == 0)
-		goto cleanup;
-
-	mutex_lock(&info->port.mutex);
- 	if (info->port.flags & ASYNC_INITIALIZED)
- 		wait_until_sent(tty, info->timeout);
-
-	flush_buffer(tty);
-	tty_ldisc_flush(tty);
-	shutdown(info);
-	mutex_unlock(&info->port.mutex);
-
-	tty_port_close_end(&info->port, tty);
-	info->port.tty = NULL;
-cleanup:
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s close() exit, count=%d\n", __FILE__,__LINE__,
-			tty->driver->name, info->port.count);
-}
-
-/* Called by tty_hangup() when a hangup is signaled.
- * This is the same as closing all open descriptors for the port.
- */
-static void hangup(struct tty_struct *tty)
-{
-	SLMP_INFO *info = tty->driver_data;
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s hangup()\n",
-			 __FILE__,__LINE__, info->device_name );
-
-	if (sanity_check(info, tty->name, "hangup"))
-		return;
-
-	mutex_lock(&info->port.mutex);
-	flush_buffer(tty);
-	shutdown(info);
-
-	spin_lock_irqsave(&info->port.lock, flags);
-	info->port.count = 0;
-	info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
-	info->port.tty = NULL;
-	spin_unlock_irqrestore(&info->port.lock, flags);
-	mutex_unlock(&info->port.mutex);
-
-	wake_up_interruptible(&info->port.open_wait);
-}
-
-/* Set new termios settings
- */
-static void set_termios(struct tty_struct *tty, struct ktermios *old_termios)
-{
-	SLMP_INFO *info = tty->driver_data;
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s set_termios()\n", __FILE__,__LINE__,
-			tty->driver->name );
-
-	change_params(info);
-
-	/* Handle transition to B0 status */
-	if (old_termios->c_cflag & CBAUD &&
-	    !(tty->termios->c_cflag & CBAUD)) {
-		info->serial_signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
-		spin_lock_irqsave(&info->lock,flags);
-	 	set_signals(info);
-		spin_unlock_irqrestore(&info->lock,flags);
-	}
-
-	/* Handle transition away from B0 status */
-	if (!(old_termios->c_cflag & CBAUD) &&
-	    tty->termios->c_cflag & CBAUD) {
-		info->serial_signals |= SerialSignal_DTR;
- 		if (!(tty->termios->c_cflag & CRTSCTS) ||
- 		    !test_bit(TTY_THROTTLED, &tty->flags)) {
-			info->serial_signals |= SerialSignal_RTS;
- 		}
-		spin_lock_irqsave(&info->lock,flags);
-	 	set_signals(info);
-		spin_unlock_irqrestore(&info->lock,flags);
-	}
-
-	/* Handle turning off CRTSCTS */
-	if (old_termios->c_cflag & CRTSCTS &&
-	    !(tty->termios->c_cflag & CRTSCTS)) {
-		tty->hw_stopped = 0;
-		tx_release(tty);
-	}
-}
-
-/* Send a block of data
- *
- * Arguments:
- *
- * 	tty		pointer to tty information structure
- * 	buf		pointer to buffer containing send data
- * 	count		size of send data in bytes
- *
- * Return Value:	number of characters written
- */
-static int write(struct tty_struct *tty,
-		 const unsigned char *buf, int count)
-{
-	int	c, ret = 0;
-	SLMP_INFO *info = tty->driver_data;
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s write() count=%d\n",
-		       __FILE__,__LINE__,info->device_name,count);
-
-	if (sanity_check(info, tty->name, "write"))
-		goto cleanup;
-
-	if (!info->tx_buf)
-		goto cleanup;
-
-	if (info->params.mode == MGSL_MODE_HDLC) {
-		if (count > info->max_frame_size) {
-			ret = -EIO;
-			goto cleanup;
-		}
-		if (info->tx_active)
-			goto cleanup;
-		if (info->tx_count) {
-			/* send accumulated data from send_char() calls */
-			/* as frame and wait before accepting more data. */
-			tx_load_dma_buffer(info, info->tx_buf, info->tx_count);
-			goto start;
-		}
-		ret = info->tx_count = count;
-		tx_load_dma_buffer(info, buf, count);
-		goto start;
-	}
-
-	for (;;) {
-		c = min_t(int, count,
-			min(info->max_frame_size - info->tx_count - 1,
-			    info->max_frame_size - info->tx_put));
-		if (c <= 0)
-			break;
-			
-		memcpy(info->tx_buf + info->tx_put, buf, c);
-
-		spin_lock_irqsave(&info->lock,flags);
-		info->tx_put += c;
-		if (info->tx_put >= info->max_frame_size)
-			info->tx_put -= info->max_frame_size;
-		info->tx_count += c;
-		spin_unlock_irqrestore(&info->lock,flags);
-
-		buf += c;
-		count -= c;
-		ret += c;
-	}
-
-	if (info->params.mode == MGSL_MODE_HDLC) {
-		if (count) {
-			ret = info->tx_count = 0;
-			goto cleanup;
-		}
-		tx_load_dma_buffer(info, info->tx_buf, info->tx_count);
-	}
-start:
- 	if (info->tx_count && !tty->stopped && !tty->hw_stopped) {
-		spin_lock_irqsave(&info->lock,flags);
-		if (!info->tx_active)
-		 	tx_start(info);
-		spin_unlock_irqrestore(&info->lock,flags);
- 	}
-
-cleanup:
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk( "%s(%d):%s write() returning=%d\n",
-			__FILE__,__LINE__,info->device_name,ret);
-	return ret;
-}
-
-/* Add a character to the transmit buffer.
- */
-static int put_char(struct tty_struct *tty, unsigned char ch)
-{
-	SLMP_INFO *info = tty->driver_data;
-	unsigned long flags;
-	int ret = 0;
-
-	if ( debug_level >= DEBUG_LEVEL_INFO ) {
-		printk( "%s(%d):%s put_char(%d)\n",
-			__FILE__,__LINE__,info->device_name,ch);
-	}
-
-	if (sanity_check(info, tty->name, "put_char"))
-		return 0;
-
-	if (!info->tx_buf)
-		return 0;
-
-	spin_lock_irqsave(&info->lock,flags);
-
-	if ( (info->params.mode != MGSL_MODE_HDLC) ||
-	     !info->tx_active ) {
-
-		if (info->tx_count < info->max_frame_size - 1) {
-			info->tx_buf[info->tx_put++] = ch;
-			if (info->tx_put >= info->max_frame_size)
-				info->tx_put -= info->max_frame_size;
-			info->tx_count++;
-			ret = 1;
-		}
-	}
-
-	spin_unlock_irqrestore(&info->lock,flags);
-	return ret;
-}
-
-/* Send a high-priority XON/XOFF character
- */
-static void send_xchar(struct tty_struct *tty, char ch)
-{
-	SLMP_INFO *info = tty->driver_data;
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s send_xchar(%d)\n",
-			 __FILE__,__LINE__, info->device_name, ch );
-
-	if (sanity_check(info, tty->name, "send_xchar"))
-		return;
-
-	info->x_char = ch;
-	if (ch) {
-		/* Make sure transmit interrupts are on */
-		spin_lock_irqsave(&info->lock,flags);
-		if (!info->tx_enabled)
-		 	tx_start(info);
-		spin_unlock_irqrestore(&info->lock,flags);
-	}
-}
-
-/* Wait until the transmitter is empty.
- */
-static void wait_until_sent(struct tty_struct *tty, int timeout)
-{
-	SLMP_INFO * info = tty->driver_data;
-	unsigned long orig_jiffies, char_time;
-
-	if (!info )
-		return;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s wait_until_sent() entry\n",
-			 __FILE__,__LINE__, info->device_name );
-
-	if (sanity_check(info, tty->name, "wait_until_sent"))
-		return;
-
-	if (!test_bit(ASYNCB_INITIALIZED, &info->port.flags))
-		goto exit;
-
-	orig_jiffies = jiffies;
-
-	/* Set check interval to 1/5 of estimated time to
-	 * send a character, and make it at least 1. The check
-	 * interval should also be less than the timeout.
-	 * Note: use tight timings here to satisfy the NIST-PCTS.
-	 */
-
-	if ( info->params.data_rate ) {
-	       	char_time = info->timeout/(32 * 5);
-		if (!char_time)
-			char_time++;
-	} else
-		char_time = 1;
-
-	if (timeout)
-		char_time = min_t(unsigned long, char_time, timeout);
-
-	if ( info->params.mode == MGSL_MODE_HDLC ) {
-		while (info->tx_active) {
-			msleep_interruptible(jiffies_to_msecs(char_time));
-			if (signal_pending(current))
-				break;
-			if (timeout && time_after(jiffies, orig_jiffies + timeout))
-				break;
-		}
-	} else {
-		/*
-		 * TODO: determine if there is something similar to USC16C32
-		 * 	 TXSTATUS_ALL_SENT status
-		 */
-		while ( info->tx_active && info->tx_enabled) {
-			msleep_interruptible(jiffies_to_msecs(char_time));
-			if (signal_pending(current))
-				break;
-			if (timeout && time_after(jiffies, orig_jiffies + timeout))
-				break;
-		}
-	}
-
-exit:
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s wait_until_sent() exit\n",
-			 __FILE__,__LINE__, info->device_name );
-}
-
-/* Return the count of free bytes in transmit buffer
- */
-static int write_room(struct tty_struct *tty)
-{
-	SLMP_INFO *info = tty->driver_data;
-	int ret;
-
-	if (sanity_check(info, tty->name, "write_room"))
-		return 0;
-
-	if (info->params.mode == MGSL_MODE_HDLC) {
-		ret = (info->tx_active) ? 0 : HDLC_MAX_FRAME_SIZE;
-	} else {
-		ret = info->max_frame_size - info->tx_count - 1;
-		if (ret < 0)
-			ret = 0;
-	}
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s write_room()=%d\n",
-		       __FILE__, __LINE__, info->device_name, ret);
-
-	return ret;
-}
-
-/* enable transmitter and send remaining buffered characters
- */
-static void flush_chars(struct tty_struct *tty)
-{
-	SLMP_INFO *info = tty->driver_data;
-	unsigned long flags;
-
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk( "%s(%d):%s flush_chars() entry tx_count=%d\n",
-			__FILE__,__LINE__,info->device_name,info->tx_count);
-
-	if (sanity_check(info, tty->name, "flush_chars"))
-		return;
-
-	if (info->tx_count <= 0 || tty->stopped || tty->hw_stopped ||
-	    !info->tx_buf)
-		return;
-
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk( "%s(%d):%s flush_chars() entry, starting transmitter\n",
-			__FILE__,__LINE__,info->device_name );
-
-	spin_lock_irqsave(&info->lock,flags);
-
-	if (!info->tx_active) {
-		if ( (info->params.mode == MGSL_MODE_HDLC) &&
-			info->tx_count ) {
-			/* operating in synchronous (frame oriented) mode */
-			/* copy data from circular tx_buf to */
-			/* transmit DMA buffer. */
-			tx_load_dma_buffer(info,
-				 info->tx_buf,info->tx_count);
-		}
-	 	tx_start(info);
-	}
-
-	spin_unlock_irqrestore(&info->lock,flags);
-}
-
-/* Discard all data in the send buffer
- */
-static void flush_buffer(struct tty_struct *tty)
-{
-	SLMP_INFO *info = tty->driver_data;
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s flush_buffer() entry\n",
-			 __FILE__,__LINE__, info->device_name );
-
-	if (sanity_check(info, tty->name, "flush_buffer"))
-		return;
-
-	spin_lock_irqsave(&info->lock,flags);
-	info->tx_count = info->tx_put = info->tx_get = 0;
-	del_timer(&info->tx_timer);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	tty_wakeup(tty);
-}
-
-/* throttle (stop) transmitter
- */
-static void tx_hold(struct tty_struct *tty)
-{
-	SLMP_INFO *info = tty->driver_data;
-	unsigned long flags;
-
-	if (sanity_check(info, tty->name, "tx_hold"))
-		return;
-
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk("%s(%d):%s tx_hold()\n",
-			__FILE__,__LINE__,info->device_name);
-
-	spin_lock_irqsave(&info->lock,flags);
-	if (info->tx_enabled)
-	 	tx_stop(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-}
-
-/* release (start) transmitter
- */
-static void tx_release(struct tty_struct *tty)
-{
-	SLMP_INFO *info = tty->driver_data;
-	unsigned long flags;
-
-	if (sanity_check(info, tty->name, "tx_release"))
-		return;
-
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk("%s(%d):%s tx_release()\n",
-			__FILE__,__LINE__,info->device_name);
-
-	spin_lock_irqsave(&info->lock,flags);
-	if (!info->tx_enabled)
-	 	tx_start(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-}
-
-/* Service an IOCTL request
- *
- * Arguments:
- *
- * 	tty	pointer to tty instance data
- * 	cmd	IOCTL command code
- * 	arg	command argument/context
- *
- * Return Value:	0 if success, otherwise error code
- */
-static int ioctl(struct tty_struct *tty,
-		 unsigned int cmd, unsigned long arg)
-{
-	SLMP_INFO *info = tty->driver_data;
-	void __user *argp = (void __user *)arg;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s ioctl() cmd=%08X\n", __FILE__,__LINE__,
-			info->device_name, cmd );
-
-	if (sanity_check(info, tty->name, "ioctl"))
-		return -ENODEV;
-
-	if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
-	    (cmd != TIOCMIWAIT)) {
-		if (tty->flags & (1 << TTY_IO_ERROR))
-		    return -EIO;
-	}
-
-	switch (cmd) {
-	case MGSL_IOCGPARAMS:
-		return get_params(info, argp);
-	case MGSL_IOCSPARAMS:
-		return set_params(info, argp);
-	case MGSL_IOCGTXIDLE:
-		return get_txidle(info, argp);
-	case MGSL_IOCSTXIDLE:
-		return set_txidle(info, (int)arg);
-	case MGSL_IOCTXENABLE:
-		return tx_enable(info, (int)arg);
-	case MGSL_IOCRXENABLE:
-		return rx_enable(info, (int)arg);
-	case MGSL_IOCTXABORT:
-		return tx_abort(info);
-	case MGSL_IOCGSTATS:
-		return get_stats(info, argp);
-	case MGSL_IOCWAITEVENT:
-		return wait_mgsl_event(info, argp);
-	case MGSL_IOCLOOPTXDONE:
-		return 0; // TODO: Not supported, need to document
-		/* Wait for modem input (DCD,RI,DSR,CTS) change
-		 * as specified by mask in arg (TIOCM_RNG/DSR/CD/CTS)
-		 */
-	case TIOCMIWAIT:
-		return modem_input_wait(info,(int)arg);
-		
-		/*
-		 * Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
-		 * Return: write counters to the user passed counter struct
-		 * NB: both 1->0 and 0->1 transitions are counted except for
-		 *     RI where only 0->1 is counted.
-		 */
-	default:
-		return -ENOIOCTLCMD;
-	}
-	return 0;
-}
-
-static int get_icount(struct tty_struct *tty,
-				struct serial_icounter_struct *icount)
-{
-	SLMP_INFO *info = tty->driver_data;
-	struct mgsl_icount cnow;	/* kernel counter temps */
-	unsigned long flags;
-
-	spin_lock_irqsave(&info->lock,flags);
-	cnow = info->icount;
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	icount->cts = cnow.cts;
-	icount->dsr = cnow.dsr;
-	icount->rng = cnow.rng;
-	icount->dcd = cnow.dcd;
-	icount->rx = cnow.rx;
-	icount->tx = cnow.tx;
-	icount->frame = cnow.frame;
-	icount->overrun = cnow.overrun;
-	icount->parity = cnow.parity;
-	icount->brk = cnow.brk;
-	icount->buf_overrun = cnow.buf_overrun;
-
-	return 0;
-}
-
-/*
- * /proc fs routines....
- */
-
-static inline void line_info(struct seq_file *m, SLMP_INFO *info)
-{
-	char	stat_buf[30];
-	unsigned long flags;
-
-	seq_printf(m, "%s: SCABase=%08x Mem=%08X StatusControl=%08x LCR=%08X\n"
-		       "\tIRQ=%d MaxFrameSize=%u\n",
-		info->device_name,
-		info->phys_sca_base,
-		info->phys_memory_base,
-		info->phys_statctrl_base,
-		info->phys_lcr_base,
-		info->irq_level,
-		info->max_frame_size );
-
-	/* output current serial signal states */
-	spin_lock_irqsave(&info->lock,flags);
- 	get_signals(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	stat_buf[0] = 0;
-	stat_buf[1] = 0;
-	if (info->serial_signals & SerialSignal_RTS)
-		strcat(stat_buf, "|RTS");
-	if (info->serial_signals & SerialSignal_CTS)
-		strcat(stat_buf, "|CTS");
-	if (info->serial_signals & SerialSignal_DTR)
-		strcat(stat_buf, "|DTR");
-	if (info->serial_signals & SerialSignal_DSR)
-		strcat(stat_buf, "|DSR");
-	if (info->serial_signals & SerialSignal_DCD)
-		strcat(stat_buf, "|CD");
-	if (info->serial_signals & SerialSignal_RI)
-		strcat(stat_buf, "|RI");
-
-	if (info->params.mode == MGSL_MODE_HDLC) {
-		seq_printf(m, "\tHDLC txok:%d rxok:%d",
-			      info->icount.txok, info->icount.rxok);
-		if (info->icount.txunder)
-			seq_printf(m, " txunder:%d", info->icount.txunder);
-		if (info->icount.txabort)
-			seq_printf(m, " txabort:%d", info->icount.txabort);
-		if (info->icount.rxshort)
-			seq_printf(m, " rxshort:%d", info->icount.rxshort);
-		if (info->icount.rxlong)
-			seq_printf(m, " rxlong:%d", info->icount.rxlong);
-		if (info->icount.rxover)
-			seq_printf(m, " rxover:%d", info->icount.rxover);
-		if (info->icount.rxcrc)
-			seq_printf(m, " rxlong:%d", info->icount.rxcrc);
-	} else {
-		seq_printf(m, "\tASYNC tx:%d rx:%d",
-			      info->icount.tx, info->icount.rx);
-		if (info->icount.frame)
-			seq_printf(m, " fe:%d", info->icount.frame);
-		if (info->icount.parity)
-			seq_printf(m, " pe:%d", info->icount.parity);
-		if (info->icount.brk)
-			seq_printf(m, " brk:%d", info->icount.brk);
-		if (info->icount.overrun)
-			seq_printf(m, " oe:%d", info->icount.overrun);
-	}
-
-	/* Append serial signal status to end */
-	seq_printf(m, " %s\n", stat_buf+1);
-
-	seq_printf(m, "\ttxactive=%d bh_req=%d bh_run=%d pending_bh=%x\n",
-	 info->tx_active,info->bh_requested,info->bh_running,
-	 info->pending_bh);
-}
-
-/* Called to print information about devices
- */
-static int synclinkmp_proc_show(struct seq_file *m, void *v)
-{
-	SLMP_INFO *info;
-
-	seq_printf(m, "synclinkmp driver:%s\n", driver_version);
-
-	info = synclinkmp_device_list;
-	while( info ) {
-		line_info(m, info);
-		info = info->next_device;
-	}
-	return 0;
-}
-
-static int synclinkmp_proc_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, synclinkmp_proc_show, NULL);
-}
-
-static const struct file_operations synclinkmp_proc_fops = {
-	.owner		= THIS_MODULE,
-	.open		= synclinkmp_proc_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-
-/* Return the count of bytes in transmit buffer
- */
-static int chars_in_buffer(struct tty_struct *tty)
-{
-	SLMP_INFO *info = tty->driver_data;
-
-	if (sanity_check(info, tty->name, "chars_in_buffer"))
-		return 0;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s chars_in_buffer()=%d\n",
-		       __FILE__, __LINE__, info->device_name, info->tx_count);
-
-	return info->tx_count;
-}
-
-/* Signal remote device to throttle send data (our receive data)
- */
-static void throttle(struct tty_struct * tty)
-{
-	SLMP_INFO *info = tty->driver_data;
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s throttle() entry\n",
-			 __FILE__,__LINE__, info->device_name );
-
-	if (sanity_check(info, tty->name, "throttle"))
-		return;
-
-	if (I_IXOFF(tty))
-		send_xchar(tty, STOP_CHAR(tty));
-
- 	if (tty->termios->c_cflag & CRTSCTS) {
-		spin_lock_irqsave(&info->lock,flags);
-		info->serial_signals &= ~SerialSignal_RTS;
-	 	set_signals(info);
-		spin_unlock_irqrestore(&info->lock,flags);
-	}
-}
-
-/* Signal remote device to stop throttling send data (our receive data)
- */
-static void unthrottle(struct tty_struct * tty)
-{
-	SLMP_INFO *info = tty->driver_data;
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s unthrottle() entry\n",
-			 __FILE__,__LINE__, info->device_name );
-
-	if (sanity_check(info, tty->name, "unthrottle"))
-		return;
-
-	if (I_IXOFF(tty)) {
-		if (info->x_char)
-			info->x_char = 0;
-		else
-			send_xchar(tty, START_CHAR(tty));
-	}
-
- 	if (tty->termios->c_cflag & CRTSCTS) {
-		spin_lock_irqsave(&info->lock,flags);
-		info->serial_signals |= SerialSignal_RTS;
-	 	set_signals(info);
-		spin_unlock_irqrestore(&info->lock,flags);
-	}
-}
-
-/* set or clear transmit break condition
- * break_state	-1=set break condition, 0=clear
- */
-static int set_break(struct tty_struct *tty, int break_state)
-{
-	unsigned char RegValue;
-	SLMP_INFO * info = tty->driver_data;
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s set_break(%d)\n",
-			 __FILE__,__LINE__, info->device_name, break_state);
-
-	if (sanity_check(info, tty->name, "set_break"))
-		return -EINVAL;
-
-	spin_lock_irqsave(&info->lock,flags);
-	RegValue = read_reg(info, CTL);
- 	if (break_state == -1)
-		RegValue |= BIT3;
-	else
-		RegValue &= ~BIT3;
-	write_reg(info, CTL, RegValue);
-	spin_unlock_irqrestore(&info->lock,flags);
-	return 0;
-}
-
-#if SYNCLINK_GENERIC_HDLC
-
-/**
- * called by generic HDLC layer when protocol selected (PPP, frame relay, etc.)
- * set encoding and frame check sequence (FCS) options
- *
- * dev       pointer to network device structure
- * encoding  serial encoding setting
- * parity    FCS setting
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
-			  unsigned short parity)
-{
-	SLMP_INFO *info = dev_to_port(dev);
-	unsigned char  new_encoding;
-	unsigned short new_crctype;
-
-	/* return error if TTY interface open */
-	if (info->port.count)
-		return -EBUSY;
-
-	switch (encoding)
-	{
-	case ENCODING_NRZ:        new_encoding = HDLC_ENCODING_NRZ; break;
-	case ENCODING_NRZI:       new_encoding = HDLC_ENCODING_NRZI_SPACE; break;
-	case ENCODING_FM_MARK:    new_encoding = HDLC_ENCODING_BIPHASE_MARK; break;
-	case ENCODING_FM_SPACE:   new_encoding = HDLC_ENCODING_BIPHASE_SPACE; break;
-	case ENCODING_MANCHESTER: new_encoding = HDLC_ENCODING_BIPHASE_LEVEL; break;
-	default: return -EINVAL;
-	}
-
-	switch (parity)
-	{
-	case PARITY_NONE:            new_crctype = HDLC_CRC_NONE; break;
-	case PARITY_CRC16_PR1_CCITT: new_crctype = HDLC_CRC_16_CCITT; break;
-	case PARITY_CRC32_PR1_CCITT: new_crctype = HDLC_CRC_32_CCITT; break;
-	default: return -EINVAL;
-	}
-
-	info->params.encoding = new_encoding;
-	info->params.crc_type = new_crctype;
-
-	/* if network interface up, reprogram hardware */
-	if (info->netcount)
-		program_hw(info);
-
-	return 0;
-}
-
-/**
- * called by generic HDLC layer to send frame
- *
- * skb  socket buffer containing HDLC frame
- * dev  pointer to network device structure
- */
-static netdev_tx_t hdlcdev_xmit(struct sk_buff *skb,
-				      struct net_device *dev)
-{
-	SLMP_INFO *info = dev_to_port(dev);
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk(KERN_INFO "%s:hdlc_xmit(%s)\n",__FILE__,dev->name);
-
-	/* stop sending until this frame completes */
-	netif_stop_queue(dev);
-
-	/* copy data to device buffers */
-	info->tx_count = skb->len;
-	tx_load_dma_buffer(info, skb->data, skb->len);
-
-	/* update network statistics */
-	dev->stats.tx_packets++;
-	dev->stats.tx_bytes += skb->len;
-
-	/* done with socket buffer, so free it */
-	dev_kfree_skb(skb);
-
-	/* save start time for transmit timeout detection */
-	dev->trans_start = jiffies;
-
-	/* start hardware transmitter if necessary */
-	spin_lock_irqsave(&info->lock,flags);
-	if (!info->tx_active)
-	 	tx_start(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	return NETDEV_TX_OK;
-}
-
-/**
- * called by network layer when interface enabled
- * claim resources and initialize hardware
- *
- * dev  pointer to network device structure
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_open(struct net_device *dev)
-{
-	SLMP_INFO *info = dev_to_port(dev);
-	int rc;
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s:hdlcdev_open(%s)\n",__FILE__,dev->name);
-
-	/* generic HDLC layer open processing */
-	if ((rc = hdlc_open(dev)))
-		return rc;
-
-	/* arbitrate between network and tty opens */
-	spin_lock_irqsave(&info->netlock, flags);
-	if (info->port.count != 0 || info->netcount != 0) {
-		printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
-		spin_unlock_irqrestore(&info->netlock, flags);
-		return -EBUSY;
-	}
-	info->netcount=1;
-	spin_unlock_irqrestore(&info->netlock, flags);
-
-	/* claim resources and init adapter */
-	if ((rc = startup(info)) != 0) {
-		spin_lock_irqsave(&info->netlock, flags);
-		info->netcount=0;
-		spin_unlock_irqrestore(&info->netlock, flags);
-		return rc;
-	}
-
-	/* assert DTR and RTS, apply hardware settings */
-	info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR;
-	program_hw(info);
-
-	/* enable network layer transmit */
-	dev->trans_start = jiffies;
-	netif_start_queue(dev);
-
-	/* inform generic HDLC layer of current DCD status */
-	spin_lock_irqsave(&info->lock, flags);
-	get_signals(info);
-	spin_unlock_irqrestore(&info->lock, flags);
-	if (info->serial_signals & SerialSignal_DCD)
-		netif_carrier_on(dev);
-	else
-		netif_carrier_off(dev);
-	return 0;
-}
-
-/**
- * called by network layer when interface is disabled
- * shutdown hardware and release resources
- *
- * dev  pointer to network device structure
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_close(struct net_device *dev)
-{
-	SLMP_INFO *info = dev_to_port(dev);
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s:hdlcdev_close(%s)\n",__FILE__,dev->name);
-
-	netif_stop_queue(dev);
-
-	/* shutdown adapter and release resources */
-	shutdown(info);
-
-	hdlc_close(dev);
-
-	spin_lock_irqsave(&info->netlock, flags);
-	info->netcount=0;
-	spin_unlock_irqrestore(&info->netlock, flags);
-
-	return 0;
-}
-
-/**
- * called by network layer to process IOCTL call to network device
- *
- * dev  pointer to network device structure
- * ifr  pointer to network interface request structure
- * cmd  IOCTL command code
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
-{
-	const size_t size = sizeof(sync_serial_settings);
-	sync_serial_settings new_line;
-	sync_serial_settings __user *line = ifr->ifr_settings.ifs_ifsu.sync;
-	SLMP_INFO *info = dev_to_port(dev);
-	unsigned int flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name);
-
-	/* return error if TTY interface open */
-	if (info->port.count)
-		return -EBUSY;
-
-	if (cmd != SIOCWANDEV)
-		return hdlc_ioctl(dev, ifr, cmd);
-
-	switch(ifr->ifr_settings.type) {
-	case IF_GET_IFACE: /* return current sync_serial_settings */
-
-		ifr->ifr_settings.type = IF_IFACE_SYNC_SERIAL;
-		if (ifr->ifr_settings.size < size) {
-			ifr->ifr_settings.size = size; /* data size wanted */
-			return -ENOBUFS;
-		}
-
-		flags = info->params.flags & (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL |
-					      HDLC_FLAG_RXC_BRG    | HDLC_FLAG_RXC_TXCPIN |
-					      HDLC_FLAG_TXC_TXCPIN | HDLC_FLAG_TXC_DPLL |
-					      HDLC_FLAG_TXC_BRG    | HDLC_FLAG_TXC_RXCPIN);
-
-		switch (flags){
-		case (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_TXCPIN): new_line.clock_type = CLOCK_EXT; break;
-		case (HDLC_FLAG_RXC_BRG    | HDLC_FLAG_TXC_BRG):    new_line.clock_type = CLOCK_INT; break;
-		case (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_BRG):    new_line.clock_type = CLOCK_TXINT; break;
-		case (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_RXCPIN): new_line.clock_type = CLOCK_TXFROMRX; break;
-		default: new_line.clock_type = CLOCK_DEFAULT;
-		}
-
-		new_line.clock_rate = info->params.clock_speed;
-		new_line.loopback   = info->params.loopback ? 1:0;
-
-		if (copy_to_user(line, &new_line, size))
-			return -EFAULT;
-		return 0;
-
-	case IF_IFACE_SYNC_SERIAL: /* set sync_serial_settings */
-
-		if(!capable(CAP_NET_ADMIN))
-			return -EPERM;
-		if (copy_from_user(&new_line, line, size))
-			return -EFAULT;
-
-		switch (new_line.clock_type)
-		{
-		case CLOCK_EXT:      flags = HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_TXCPIN; break;
-		case CLOCK_TXFROMRX: flags = HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_RXCPIN; break;
-		case CLOCK_INT:      flags = HDLC_FLAG_RXC_BRG    | HDLC_FLAG_TXC_BRG;    break;
-		case CLOCK_TXINT:    flags = HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_BRG;    break;
-		case CLOCK_DEFAULT:  flags = info->params.flags &
-					     (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL |
-					      HDLC_FLAG_RXC_BRG    | HDLC_FLAG_RXC_TXCPIN |
-					      HDLC_FLAG_TXC_TXCPIN | HDLC_FLAG_TXC_DPLL |
-					      HDLC_FLAG_TXC_BRG    | HDLC_FLAG_TXC_RXCPIN); break;
-		default: return -EINVAL;
-		}
-
-		if (new_line.loopback != 0 && new_line.loopback != 1)
-			return -EINVAL;
-
-		info->params.flags &= ~(HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL |
-					HDLC_FLAG_RXC_BRG    | HDLC_FLAG_RXC_TXCPIN |
-					HDLC_FLAG_TXC_TXCPIN | HDLC_FLAG_TXC_DPLL |
-					HDLC_FLAG_TXC_BRG    | HDLC_FLAG_TXC_RXCPIN);
-		info->params.flags |= flags;
-
-		info->params.loopback = new_line.loopback;
-
-		if (flags & (HDLC_FLAG_RXC_BRG | HDLC_FLAG_TXC_BRG))
-			info->params.clock_speed = new_line.clock_rate;
-		else
-			info->params.clock_speed = 0;
-
-		/* if network interface up, reprogram hardware */
-		if (info->netcount)
-			program_hw(info);
-		return 0;
-
-	default:
-		return hdlc_ioctl(dev, ifr, cmd);
-	}
-}
-
-/**
- * called by network layer when transmit timeout is detected
- *
- * dev  pointer to network device structure
- */
-static void hdlcdev_tx_timeout(struct net_device *dev)
-{
-	SLMP_INFO *info = dev_to_port(dev);
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("hdlcdev_tx_timeout(%s)\n",dev->name);
-
-	dev->stats.tx_errors++;
-	dev->stats.tx_aborted_errors++;
-
-	spin_lock_irqsave(&info->lock,flags);
-	tx_stop(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	netif_wake_queue(dev);
-}
-
-/**
- * called by device driver when transmit completes
- * reenable network layer transmit if stopped
- *
- * info  pointer to device instance information
- */
-static void hdlcdev_tx_done(SLMP_INFO *info)
-{
-	if (netif_queue_stopped(info->netdev))
-		netif_wake_queue(info->netdev);
-}
-
-/**
- * called by device driver when frame received
- * pass frame to network layer
- *
- * info  pointer to device instance information
- * buf   pointer to buffer contianing frame data
- * size  count of data bytes in buf
- */
-static void hdlcdev_rx(SLMP_INFO *info, char *buf, int size)
-{
-	struct sk_buff *skb = dev_alloc_skb(size);
-	struct net_device *dev = info->netdev;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("hdlcdev_rx(%s)\n",dev->name);
-
-	if (skb == NULL) {
-		printk(KERN_NOTICE "%s: can't alloc skb, dropping packet\n",
-		       dev->name);
-		dev->stats.rx_dropped++;
-		return;
-	}
-
-	memcpy(skb_put(skb, size), buf, size);
-
-	skb->protocol = hdlc_type_trans(skb, dev);
-
-	dev->stats.rx_packets++;
-	dev->stats.rx_bytes += size;
-
-	netif_rx(skb);
-}
-
-static const struct net_device_ops hdlcdev_ops = {
-	.ndo_open       = hdlcdev_open,
-	.ndo_stop       = hdlcdev_close,
-	.ndo_change_mtu = hdlc_change_mtu,
-	.ndo_start_xmit = hdlc_start_xmit,
-	.ndo_do_ioctl   = hdlcdev_ioctl,
-	.ndo_tx_timeout = hdlcdev_tx_timeout,
-};
-
-/**
- * called by device driver when adding device instance
- * do generic HDLC initialization
- *
- * info  pointer to device instance information
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_init(SLMP_INFO *info)
-{
-	int rc;
-	struct net_device *dev;
-	hdlc_device *hdlc;
-
-	/* allocate and initialize network and HDLC layer objects */
-
-	if (!(dev = alloc_hdlcdev(info))) {
-		printk(KERN_ERR "%s:hdlc device allocation failure\n",__FILE__);
-		return -ENOMEM;
-	}
-
-	/* for network layer reporting purposes only */
-	dev->mem_start = info->phys_sca_base;
-	dev->mem_end   = info->phys_sca_base + SCA_BASE_SIZE - 1;
-	dev->irq       = info->irq_level;
-
-	/* network layer callbacks and settings */
-	dev->netdev_ops	    = &hdlcdev_ops;
-	dev->watchdog_timeo = 10 * HZ;
-	dev->tx_queue_len   = 50;
-
-	/* generic HDLC layer callbacks and settings */
-	hdlc         = dev_to_hdlc(dev);
-	hdlc->attach = hdlcdev_attach;
-	hdlc->xmit   = hdlcdev_xmit;
-
-	/* register objects with HDLC layer */
-	if ((rc = register_hdlc_device(dev))) {
-		printk(KERN_WARNING "%s:unable to register hdlc device\n",__FILE__);
-		free_netdev(dev);
-		return rc;
-	}
-
-	info->netdev = dev;
-	return 0;
-}
-
-/**
- * called by device driver when removing device instance
- * do generic HDLC cleanup
- *
- * info  pointer to device instance information
- */
-static void hdlcdev_exit(SLMP_INFO *info)
-{
-	unregister_hdlc_device(info->netdev);
-	free_netdev(info->netdev);
-	info->netdev = NULL;
-}
-
-#endif /* CONFIG_HDLC */
-
-
-/* Return next bottom half action to perform.
- * Return Value:	BH action code or 0 if nothing to do.
- */
-static int bh_action(SLMP_INFO *info)
-{
-	unsigned long flags;
-	int rc = 0;
-
-	spin_lock_irqsave(&info->lock,flags);
-
-	if (info->pending_bh & BH_RECEIVE) {
-		info->pending_bh &= ~BH_RECEIVE;
-		rc = BH_RECEIVE;
-	} else if (info->pending_bh & BH_TRANSMIT) {
-		info->pending_bh &= ~BH_TRANSMIT;
-		rc = BH_TRANSMIT;
-	} else if (info->pending_bh & BH_STATUS) {
-		info->pending_bh &= ~BH_STATUS;
-		rc = BH_STATUS;
-	}
-
-	if (!rc) {
-		/* Mark BH routine as complete */
-		info->bh_running = false;
-		info->bh_requested = false;
-	}
-
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	return rc;
-}
-
-/* Perform bottom half processing of work items queued by ISR.
- */
-static void bh_handler(struct work_struct *work)
-{
-	SLMP_INFO *info = container_of(work, SLMP_INFO, task);
-	int action;
-
-	if (!info)
-		return;
-
-	if ( debug_level >= DEBUG_LEVEL_BH )
-		printk( "%s(%d):%s bh_handler() entry\n",
-			__FILE__,__LINE__,info->device_name);
-
-	info->bh_running = true;
-
-	while((action = bh_action(info)) != 0) {
-
-		/* Process work item */
-		if ( debug_level >= DEBUG_LEVEL_BH )
-			printk( "%s(%d):%s bh_handler() work item action=%d\n",
-				__FILE__,__LINE__,info->device_name, action);
-
-		switch (action) {
-
-		case BH_RECEIVE:
-			bh_receive(info);
-			break;
-		case BH_TRANSMIT:
-			bh_transmit(info);
-			break;
-		case BH_STATUS:
-			bh_status(info);
-			break;
-		default:
-			/* unknown work item ID */
-			printk("%s(%d):%s Unknown work item ID=%08X!\n",
-				__FILE__,__LINE__,info->device_name,action);
-			break;
-		}
-	}
-
-	if ( debug_level >= DEBUG_LEVEL_BH )
-		printk( "%s(%d):%s bh_handler() exit\n",
-			__FILE__,__LINE__,info->device_name);
-}
-
-static void bh_receive(SLMP_INFO *info)
-{
-	if ( debug_level >= DEBUG_LEVEL_BH )
-		printk( "%s(%d):%s bh_receive()\n",
-			__FILE__,__LINE__,info->device_name);
-
-	while( rx_get_frame(info) );
-}
-
-static void bh_transmit(SLMP_INFO *info)
-{
-	struct tty_struct *tty = info->port.tty;
-
-	if ( debug_level >= DEBUG_LEVEL_BH )
-		printk( "%s(%d):%s bh_transmit() entry\n",
-			__FILE__,__LINE__,info->device_name);
-
-	if (tty)
-		tty_wakeup(tty);
-}
-
-static void bh_status(SLMP_INFO *info)
-{
-	if ( debug_level >= DEBUG_LEVEL_BH )
-		printk( "%s(%d):%s bh_status() entry\n",
-			__FILE__,__LINE__,info->device_name);
-
-	info->ri_chkcount = 0;
-	info->dsr_chkcount = 0;
-	info->dcd_chkcount = 0;
-	info->cts_chkcount = 0;
-}
-
-static void isr_timer(SLMP_INFO * info)
-{
-	unsigned char timer = (info->port_num & 1) ? TIMER2 : TIMER0;
-
-	/* IER2<7..4> = timer<3..0> interrupt enables (0=disabled) */
-	write_reg(info, IER2, 0);
-
-	/* TMCS, Timer Control/Status Register
-	 *
-	 * 07      CMF, Compare match flag (read only) 1=match
-	 * 06      ECMI, CMF Interrupt Enable: 0=disabled
-	 * 05      Reserved, must be 0
-	 * 04      TME, Timer Enable
-	 * 03..00  Reserved, must be 0
-	 *
-	 * 0000 0000
-	 */
-	write_reg(info, (unsigned char)(timer + TMCS), 0);
-
-	info->irq_occurred = true;
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk("%s(%d):%s isr_timer()\n",
-			__FILE__,__LINE__,info->device_name);
-}
-
-static void isr_rxint(SLMP_INFO * info)
-{
- 	struct tty_struct *tty = info->port.tty;
- 	struct	mgsl_icount *icount = &info->icount;
-	unsigned char status = read_reg(info, SR1) & info->ie1_value & (FLGD + IDLD + CDCD + BRKD);
-	unsigned char status2 = read_reg(info, SR2) & info->ie2_value & OVRN;
-
-	/* clear status bits */
-	if (status)
-		write_reg(info, SR1, status);
-
-	if (status2)
-		write_reg(info, SR2, status2);
-	
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk("%s(%d):%s isr_rxint status=%02X %02x\n",
-			__FILE__,__LINE__,info->device_name,status,status2);
-
-	if (info->params.mode == MGSL_MODE_ASYNC) {
-		if (status & BRKD) {
-			icount->brk++;
-
-			/* process break detection if tty control
-			 * is not set to ignore it
-			 */
-			if ( tty ) {
-				if (!(status & info->ignore_status_mask1)) {
-					if (info->read_status_mask1 & BRKD) {
-						tty_insert_flip_char(tty, 0, TTY_BREAK);
-						if (info->port.flags & ASYNC_SAK)
-							do_SAK(tty);
-					}
-				}
-			}
-		}
-	}
-	else {
-		if (status & (FLGD|IDLD)) {
-			if (status & FLGD)
-				info->icount.exithunt++;
-			else if (status & IDLD)
-				info->icount.rxidle++;
-			wake_up_interruptible(&info->event_wait_q);
-		}
-	}
-
-	if (status & CDCD) {
-		/* simulate a common modem status change interrupt
-		 * for our handler
-		 */
-		get_signals( info );
-		isr_io_pin(info,
-			MISCSTATUS_DCD_LATCHED|(info->serial_signals&SerialSignal_DCD));
-	}
-}
-
-/*
- * handle async rx data interrupts
- */
-static void isr_rxrdy(SLMP_INFO * info)
-{
-	u16 status;
-	unsigned char DataByte;
- 	struct tty_struct *tty = info->port.tty;
- 	struct	mgsl_icount *icount = &info->icount;
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk("%s(%d):%s isr_rxrdy\n",
-			__FILE__,__LINE__,info->device_name);
-
-	while((status = read_reg(info,CST0)) & BIT0)
-	{
-		int flag = 0;
-		bool over = false;
-		DataByte = read_reg(info,TRB);
-
-		icount->rx++;
-
-		if ( status & (PE + FRME + OVRN) ) {
-			printk("%s(%d):%s rxerr=%04X\n",
-				__FILE__,__LINE__,info->device_name,status);
-
-			/* update error statistics */
-			if (status & PE)
-				icount->parity++;
-			else if (status & FRME)
-				icount->frame++;
-			else if (status & OVRN)
-				icount->overrun++;
-
-			/* discard char if tty control flags say so */
-			if (status & info->ignore_status_mask2)
-				continue;
-
-			status &= info->read_status_mask2;
-
-			if ( tty ) {
-				if (status & PE)
-					flag = TTY_PARITY;
-				else if (status & FRME)
-					flag = TTY_FRAME;
-				if (status & OVRN) {
-					/* Overrun is special, since it's
-					 * reported immediately, and doesn't
-					 * affect the current character
-					 */
-					over = true;
-				}
-			}
-		}	/* end of if (error) */
-
-		if ( tty ) {
-			tty_insert_flip_char(tty, DataByte, flag);
-			if (over)
-				tty_insert_flip_char(tty, 0, TTY_OVERRUN);
-		}
-	}
-
-	if ( debug_level >= DEBUG_LEVEL_ISR ) {
-		printk("%s(%d):%s rx=%d brk=%d parity=%d frame=%d overrun=%d\n",
-			__FILE__,__LINE__,info->device_name,
-			icount->rx,icount->brk,icount->parity,
-			icount->frame,icount->overrun);
-	}
-
-	if ( tty )
-		tty_flip_buffer_push(tty);
-}
-
-static void isr_txeom(SLMP_INFO * info, unsigned char status)
-{
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk("%s(%d):%s isr_txeom status=%02x\n",
-			__FILE__,__LINE__,info->device_name,status);
-
-	write_reg(info, TXDMA + DIR, 0x00); /* disable Tx DMA IRQs */
-	write_reg(info, TXDMA + DSR, 0xc0); /* clear IRQs and disable DMA */
-	write_reg(info, TXDMA + DCMD, SWABORT);	/* reset/init DMA channel */
-
-	if (status & UDRN) {
-		write_reg(info, CMD, TXRESET);
-		write_reg(info, CMD, TXENABLE);
-	} else
-		write_reg(info, CMD, TXBUFCLR);
-
-	/* disable and clear tx interrupts */
-	info->ie0_value &= ~TXRDYE;
-	info->ie1_value &= ~(IDLE + UDRN);
-	write_reg16(info, IE0, (unsigned short)((info->ie1_value << 8) + info->ie0_value));
-	write_reg(info, SR1, (unsigned char)(UDRN + IDLE));
-
-	if ( info->tx_active ) {
-		if (info->params.mode != MGSL_MODE_ASYNC) {
-			if (status & UDRN)
-				info->icount.txunder++;
-			else if (status & IDLE)
-				info->icount.txok++;
-		}
-
-		info->tx_active = false;
-		info->tx_count = info->tx_put = info->tx_get = 0;
-
-		del_timer(&info->tx_timer);
-
-		if (info->params.mode != MGSL_MODE_ASYNC && info->drop_rts_on_tx_done ) {
-			info->serial_signals &= ~SerialSignal_RTS;
-			info->drop_rts_on_tx_done = false;
-			set_signals(info);
-		}
-
-#if SYNCLINK_GENERIC_HDLC
-		if (info->netcount)
-			hdlcdev_tx_done(info);
-		else
-#endif
-		{
-			if (info->port.tty && (info->port.tty->stopped || info->port.tty->hw_stopped)) {
-				tx_stop(info);
-				return;
-			}
-			info->pending_bh |= BH_TRANSMIT;
-		}
-	}
-}
-
-
-/*
- * handle tx status interrupts
- */
-static void isr_txint(SLMP_INFO * info)
-{
-	unsigned char status = read_reg(info, SR1) & info->ie1_value & (UDRN + IDLE + CCTS);
-
-	/* clear status bits */
-	write_reg(info, SR1, status);
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk("%s(%d):%s isr_txint status=%02x\n",
-			__FILE__,__LINE__,info->device_name,status);
-
-	if (status & (UDRN + IDLE))
-		isr_txeom(info, status);
-
-	if (status & CCTS) {
-		/* simulate a common modem status change interrupt
-		 * for our handler
-		 */
-		get_signals( info );
-		isr_io_pin(info,
-			MISCSTATUS_CTS_LATCHED|(info->serial_signals&SerialSignal_CTS));
-
-	}
-}
-
-/*
- * handle async tx data interrupts
- */
-static void isr_txrdy(SLMP_INFO * info)
-{
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk("%s(%d):%s isr_txrdy() tx_count=%d\n",
-			__FILE__,__LINE__,info->device_name,info->tx_count);
-
-	if (info->params.mode != MGSL_MODE_ASYNC) {
-		/* disable TXRDY IRQ, enable IDLE IRQ */
-		info->ie0_value &= ~TXRDYE;
-		info->ie1_value |= IDLE;
-		write_reg16(info, IE0, (unsigned short)((info->ie1_value << 8) + info->ie0_value));
-		return;
-	}
-
-	if (info->port.tty && (info->port.tty->stopped || info->port.tty->hw_stopped)) {
-		tx_stop(info);
-		return;
-	}
-
-	if ( info->tx_count )
-		tx_load_fifo( info );
-	else {
-		info->tx_active = false;
-		info->ie0_value &= ~TXRDYE;
-		write_reg(info, IE0, info->ie0_value);
-	}
-
-	if (info->tx_count < WAKEUP_CHARS)
-		info->pending_bh |= BH_TRANSMIT;
-}
-
-static void isr_rxdmaok(SLMP_INFO * info)
-{
-	/* BIT7 = EOT (end of transfer)
-	 * BIT6 = EOM (end of message/frame)
-	 */
-	unsigned char status = read_reg(info,RXDMA + DSR) & 0xc0;
-
-	/* clear IRQ (BIT0 must be 1 to prevent clearing DE bit) */
-	write_reg(info, RXDMA + DSR, (unsigned char)(status | 1));
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk("%s(%d):%s isr_rxdmaok(), status=%02x\n",
-			__FILE__,__LINE__,info->device_name,status);
-
-	info->pending_bh |= BH_RECEIVE;
-}
-
-static void isr_rxdmaerror(SLMP_INFO * info)
-{
-	/* BIT5 = BOF (buffer overflow)
-	 * BIT4 = COF (counter overflow)
-	 */
-	unsigned char status = read_reg(info,RXDMA + DSR) & 0x30;
-
-	/* clear IRQ (BIT0 must be 1 to prevent clearing DE bit) */
-	write_reg(info, RXDMA + DSR, (unsigned char)(status | 1));
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk("%s(%d):%s isr_rxdmaerror(), status=%02x\n",
-			__FILE__,__LINE__,info->device_name,status);
-
-	info->rx_overflow = true;
-	info->pending_bh |= BH_RECEIVE;
-}
-
-static void isr_txdmaok(SLMP_INFO * info)
-{
-	unsigned char status_reg1 = read_reg(info, SR1);
-
-	write_reg(info, TXDMA + DIR, 0x00);	/* disable Tx DMA IRQs */
-	write_reg(info, TXDMA + DSR, 0xc0); /* clear IRQs and disable DMA */
-	write_reg(info, TXDMA + DCMD, SWABORT);	/* reset/init DMA channel */
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk("%s(%d):%s isr_txdmaok(), status=%02x\n",
-			__FILE__,__LINE__,info->device_name,status_reg1);
-
-	/* program TXRDY as FIFO empty flag, enable TXRDY IRQ */
-	write_reg16(info, TRC0, 0);
-	info->ie0_value |= TXRDYE;
-	write_reg(info, IE0, info->ie0_value);
-}
-
-static void isr_txdmaerror(SLMP_INFO * info)
-{
-	/* BIT5 = BOF (buffer overflow)
-	 * BIT4 = COF (counter overflow)
-	 */
-	unsigned char status = read_reg(info,TXDMA + DSR) & 0x30;
-
-	/* clear IRQ (BIT0 must be 1 to prevent clearing DE bit) */
-	write_reg(info, TXDMA + DSR, (unsigned char)(status | 1));
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk("%s(%d):%s isr_txdmaerror(), status=%02x\n",
-			__FILE__,__LINE__,info->device_name,status);
-}
-
-/* handle input serial signal changes
- */
-static void isr_io_pin( SLMP_INFO *info, u16 status )
-{
- 	struct	mgsl_icount *icount;
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk("%s(%d):isr_io_pin status=%04X\n",
-			__FILE__,__LINE__,status);
-
-	if (status & (MISCSTATUS_CTS_LATCHED | MISCSTATUS_DCD_LATCHED |
-	              MISCSTATUS_DSR_LATCHED | MISCSTATUS_RI_LATCHED) ) {
-		icount = &info->icount;
-		/* update input line counters */
-		if (status & MISCSTATUS_RI_LATCHED) {
-			icount->rng++;
-			if ( status & SerialSignal_RI )
-				info->input_signal_events.ri_up++;
-			else
-				info->input_signal_events.ri_down++;
-		}
-		if (status & MISCSTATUS_DSR_LATCHED) {
-			icount->dsr++;
-			if ( status & SerialSignal_DSR )
-				info->input_signal_events.dsr_up++;
-			else
-				info->input_signal_events.dsr_down++;
-		}
-		if (status & MISCSTATUS_DCD_LATCHED) {
-			if ((info->dcd_chkcount)++ >= IO_PIN_SHUTDOWN_LIMIT) {
-				info->ie1_value &= ~CDCD;
-				write_reg(info, IE1, info->ie1_value);
-			}
-			icount->dcd++;
-			if (status & SerialSignal_DCD) {
-				info->input_signal_events.dcd_up++;
-			} else
-				info->input_signal_events.dcd_down++;
-#if SYNCLINK_GENERIC_HDLC
-			if (info->netcount) {
-				if (status & SerialSignal_DCD)
-					netif_carrier_on(info->netdev);
-				else
-					netif_carrier_off(info->netdev);
-			}
-#endif
-		}
-		if (status & MISCSTATUS_CTS_LATCHED)
-		{
-			if ((info->cts_chkcount)++ >= IO_PIN_SHUTDOWN_LIMIT) {
-				info->ie1_value &= ~CCTS;
-				write_reg(info, IE1, info->ie1_value);
-			}
-			icount->cts++;
-			if ( status & SerialSignal_CTS )
-				info->input_signal_events.cts_up++;
-			else
-				info->input_signal_events.cts_down++;
-		}
-		wake_up_interruptible(&info->status_event_wait_q);
-		wake_up_interruptible(&info->event_wait_q);
-
-		if ( (info->port.flags & ASYNC_CHECK_CD) &&
-		     (status & MISCSTATUS_DCD_LATCHED) ) {
-			if ( debug_level >= DEBUG_LEVEL_ISR )
-				printk("%s CD now %s...", info->device_name,
-				       (status & SerialSignal_DCD) ? "on" : "off");
-			if (status & SerialSignal_DCD)
-				wake_up_interruptible(&info->port.open_wait);
-			else {
-				if ( debug_level >= DEBUG_LEVEL_ISR )
-					printk("doing serial hangup...");
-				if (info->port.tty)
-					tty_hangup(info->port.tty);
-			}
-		}
-
-		if ( (info->port.flags & ASYNC_CTS_FLOW) &&
-		     (status & MISCSTATUS_CTS_LATCHED) ) {
-			if ( info->port.tty ) {
-				if (info->port.tty->hw_stopped) {
-					if (status & SerialSignal_CTS) {
-						if ( debug_level >= DEBUG_LEVEL_ISR )
-							printk("CTS tx start...");
-			 			info->port.tty->hw_stopped = 0;
-						tx_start(info);
-						info->pending_bh |= BH_TRANSMIT;
-						return;
-					}
-				} else {
-					if (!(status & SerialSignal_CTS)) {
-						if ( debug_level >= DEBUG_LEVEL_ISR )
-							printk("CTS tx stop...");
-			 			info->port.tty->hw_stopped = 1;
-						tx_stop(info);
-					}
-				}
-			}
-		}
-	}
-
-	info->pending_bh |= BH_STATUS;
-}
-
-/* Interrupt service routine entry point.
- *
- * Arguments:
- * 	irq		interrupt number that caused interrupt
- * 	dev_id		device ID supplied during interrupt registration
- * 	regs		interrupted processor context
- */
-static irqreturn_t synclinkmp_interrupt(int dummy, void *dev_id)
-{
-	SLMP_INFO *info = dev_id;
-	unsigned char status, status0, status1=0;
-	unsigned char dmastatus, dmastatus0, dmastatus1=0;
-	unsigned char timerstatus0, timerstatus1=0;
-	unsigned char shift;
-	unsigned int i;
-	unsigned short tmp;
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk(KERN_DEBUG "%s(%d): synclinkmp_interrupt(%d)entry.\n",
-			__FILE__, __LINE__, info->irq_level);
-
-	spin_lock(&info->lock);
-
-	for(;;) {
-
-		/* get status for SCA0 (ports 0-1) */
-		tmp = read_reg16(info, ISR0);	/* get ISR0 and ISR1 in one read */
-		status0 = (unsigned char)tmp;
-		dmastatus0 = (unsigned char)(tmp>>8);
-		timerstatus0 = read_reg(info, ISR2);
-
-		if ( debug_level >= DEBUG_LEVEL_ISR )
-			printk(KERN_DEBUG "%s(%d):%s status0=%02x, dmastatus0=%02x, timerstatus0=%02x\n",
-				__FILE__, __LINE__, info->device_name,
-				status0, dmastatus0, timerstatus0);
-
-		if (info->port_count == 4) {
-			/* get status for SCA1 (ports 2-3) */
-			tmp = read_reg16(info->port_array[2], ISR0);
-			status1 = (unsigned char)tmp;
-			dmastatus1 = (unsigned char)(tmp>>8);
-			timerstatus1 = read_reg(info->port_array[2], ISR2);
-
-			if ( debug_level >= DEBUG_LEVEL_ISR )
-				printk("%s(%d):%s status1=%02x, dmastatus1=%02x, timerstatus1=%02x\n",
-					__FILE__,__LINE__,info->device_name,
-					status1,dmastatus1,timerstatus1);
-		}
-
-		if (!status0 && !dmastatus0 && !timerstatus0 &&
-			 !status1 && !dmastatus1 && !timerstatus1)
-			break;
-
-		for(i=0; i < info->port_count ; i++) {
-			if (info->port_array[i] == NULL)
-				continue;
-			if (i < 2) {
-				status = status0;
-				dmastatus = dmastatus0;
-			} else {
-				status = status1;
-				dmastatus = dmastatus1;
-			}
-
-			shift = i & 1 ? 4 :0;
-
-			if (status & BIT0 << shift)
-				isr_rxrdy(info->port_array[i]);
-			if (status & BIT1 << shift)
-				isr_txrdy(info->port_array[i]);
-			if (status & BIT2 << shift)
-				isr_rxint(info->port_array[i]);
-			if (status & BIT3 << shift)
-				isr_txint(info->port_array[i]);
-
-			if (dmastatus & BIT0 << shift)
-				isr_rxdmaerror(info->port_array[i]);
-			if (dmastatus & BIT1 << shift)
-				isr_rxdmaok(info->port_array[i]);
-			if (dmastatus & BIT2 << shift)
-				isr_txdmaerror(info->port_array[i]);
-			if (dmastatus & BIT3 << shift)
-				isr_txdmaok(info->port_array[i]);
-		}
-
-		if (timerstatus0 & (BIT5 | BIT4))
-			isr_timer(info->port_array[0]);
-		if (timerstatus0 & (BIT7 | BIT6))
-			isr_timer(info->port_array[1]);
-		if (timerstatus1 & (BIT5 | BIT4))
-			isr_timer(info->port_array[2]);
-		if (timerstatus1 & (BIT7 | BIT6))
-			isr_timer(info->port_array[3]);
-	}
-
-	for(i=0; i < info->port_count ; i++) {
-		SLMP_INFO * port = info->port_array[i];
-
-		/* Request bottom half processing if there's something
-		 * for it to do and the bh is not already running.
-		 *
-		 * Note: startup adapter diags require interrupts.
-		 * do not request bottom half processing if the
-		 * device is not open in a normal mode.
-		 */
-		if ( port && (port->port.count || port->netcount) &&
-		     port->pending_bh && !port->bh_running &&
-		     !port->bh_requested ) {
-			if ( debug_level >= DEBUG_LEVEL_ISR )
-				printk("%s(%d):%s queueing bh task.\n",
-					__FILE__,__LINE__,port->device_name);
-			schedule_work(&port->task);
-			port->bh_requested = true;
-		}
-	}
-
-	spin_unlock(&info->lock);
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk(KERN_DEBUG "%s(%d):synclinkmp_interrupt(%d)exit.\n",
-			__FILE__, __LINE__, info->irq_level);
-	return IRQ_HANDLED;
-}
-
-/* Initialize and start device.
- */
-static int startup(SLMP_INFO * info)
-{
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk("%s(%d):%s tx_releaseup()\n",__FILE__,__LINE__,info->device_name);
-
-	if (info->port.flags & ASYNC_INITIALIZED)
-		return 0;
-
-	if (!info->tx_buf) {
-		info->tx_buf = kmalloc(info->max_frame_size, GFP_KERNEL);
-		if (!info->tx_buf) {
-			printk(KERN_ERR"%s(%d):%s can't allocate transmit buffer\n",
-				__FILE__,__LINE__,info->device_name);
-			return -ENOMEM;
-		}
-	}
-
-	info->pending_bh = 0;
-
-	memset(&info->icount, 0, sizeof(info->icount));
-
-	/* program hardware for current parameters */
-	reset_port(info);
-
-	change_params(info);
-
-	mod_timer(&info->status_timer, jiffies + msecs_to_jiffies(10));
-
-	if (info->port.tty)
-		clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
-
-	info->port.flags |= ASYNC_INITIALIZED;
-
-	return 0;
-}
-
-/* Called by close() and hangup() to shutdown hardware
- */
-static void shutdown(SLMP_INFO * info)
-{
-	unsigned long flags;
-
-	if (!(info->port.flags & ASYNC_INITIALIZED))
-		return;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s synclinkmp_shutdown()\n",
-			 __FILE__,__LINE__, info->device_name );
-
-	/* clear status wait queue because status changes */
-	/* can't happen after shutting down the hardware */
-	wake_up_interruptible(&info->status_event_wait_q);
-	wake_up_interruptible(&info->event_wait_q);
-
-	del_timer(&info->tx_timer);
-	del_timer(&info->status_timer);
-
-	kfree(info->tx_buf);
-	info->tx_buf = NULL;
-
-	spin_lock_irqsave(&info->lock,flags);
-
-	reset_port(info);
-
- 	if (!info->port.tty || info->port.tty->termios->c_cflag & HUPCL) {
- 		info->serial_signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
-		set_signals(info);
-	}
-
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	if (info->port.tty)
-		set_bit(TTY_IO_ERROR, &info->port.tty->flags);
-
-	info->port.flags &= ~ASYNC_INITIALIZED;
-}
-
-static void program_hw(SLMP_INFO *info)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&info->lock,flags);
-
-	rx_stop(info);
-	tx_stop(info);
-
-	info->tx_count = info->tx_put = info->tx_get = 0;
-
-	if (info->params.mode == MGSL_MODE_HDLC || info->netcount)
-		hdlc_mode(info);
-	else
-		async_mode(info);
-
-	set_signals(info);
-
-	info->dcd_chkcount = 0;
-	info->cts_chkcount = 0;
-	info->ri_chkcount = 0;
-	info->dsr_chkcount = 0;
-
-	info->ie1_value |= (CDCD|CCTS);
-	write_reg(info, IE1, info->ie1_value);
-
-	get_signals(info);
-
-	if (info->netcount || (info->port.tty && info->port.tty->termios->c_cflag & CREAD) )
-		rx_start(info);
-
-	spin_unlock_irqrestore(&info->lock,flags);
-}
-
-/* Reconfigure adapter based on new parameters
- */
-static void change_params(SLMP_INFO *info)
-{
-	unsigned cflag;
-	int bits_per_char;
-
-	if (!info->port.tty || !info->port.tty->termios)
-		return;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s change_params()\n",
-			 __FILE__,__LINE__, info->device_name );
-
-	cflag = info->port.tty->termios->c_cflag;
-
-	/* if B0 rate (hangup) specified then negate DTR and RTS */
-	/* otherwise assert DTR and RTS */
- 	if (cflag & CBAUD)
-		info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR;
-	else
-		info->serial_signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
-
-	/* byte size and parity */
-
-	switch (cflag & CSIZE) {
-	      case CS5: info->params.data_bits = 5; break;
-	      case CS6: info->params.data_bits = 6; break;
-	      case CS7: info->params.data_bits = 7; break;
-	      case CS8: info->params.data_bits = 8; break;
-	      /* Never happens, but GCC is too dumb to figure it out */
-	      default:  info->params.data_bits = 7; break;
-	      }
-
-	if (cflag & CSTOPB)
-		info->params.stop_bits = 2;
-	else
-		info->params.stop_bits = 1;
-
-	info->params.parity = ASYNC_PARITY_NONE;
-	if (cflag & PARENB) {
-		if (cflag & PARODD)
-			info->params.parity = ASYNC_PARITY_ODD;
-		else
-			info->params.parity = ASYNC_PARITY_EVEN;
-#ifdef CMSPAR
-		if (cflag & CMSPAR)
-			info->params.parity = ASYNC_PARITY_SPACE;
-#endif
-	}
-
-	/* calculate number of jiffies to transmit a full
-	 * FIFO (32 bytes) at specified data rate
-	 */
-	bits_per_char = info->params.data_bits +
-			info->params.stop_bits + 1;
-
-	/* if port data rate is set to 460800 or less then
-	 * allow tty settings to override, otherwise keep the
-	 * current data rate.
-	 */
-	if (info->params.data_rate <= 460800) {
-		info->params.data_rate = tty_get_baud_rate(info->port.tty);
-	}
-
-	if ( info->params.data_rate ) {
-		info->timeout = (32*HZ*bits_per_char) /
-				info->params.data_rate;
-	}
-	info->timeout += HZ/50;		/* Add .02 seconds of slop */
-
-	if (cflag & CRTSCTS)
-		info->port.flags |= ASYNC_CTS_FLOW;
-	else
-		info->port.flags &= ~ASYNC_CTS_FLOW;
-
-	if (cflag & CLOCAL)
-		info->port.flags &= ~ASYNC_CHECK_CD;
-	else
-		info->port.flags |= ASYNC_CHECK_CD;
-
-	/* process tty input control flags */
-
-	info->read_status_mask2 = OVRN;
-	if (I_INPCK(info->port.tty))
-		info->read_status_mask2 |= PE | FRME;
- 	if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))
- 		info->read_status_mask1 |= BRKD;
-	if (I_IGNPAR(info->port.tty))
-		info->ignore_status_mask2 |= PE | FRME;
-	if (I_IGNBRK(info->port.tty)) {
-		info->ignore_status_mask1 |= BRKD;
-		/* If ignoring parity and break indicators, ignore
-		 * overruns too.  (For real raw support).
-		 */
-		if (I_IGNPAR(info->port.tty))
-			info->ignore_status_mask2 |= OVRN;
-	}
-
-	program_hw(info);
-}
-
-static int get_stats(SLMP_INFO * info, struct mgsl_icount __user *user_icount)
-{
-	int err;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s get_params()\n",
-			 __FILE__,__LINE__, info->device_name);
-
-	if (!user_icount) {
-		memset(&info->icount, 0, sizeof(info->icount));
-	} else {
-		mutex_lock(&info->port.mutex);
-		COPY_TO_USER(err, user_icount, &info->icount, sizeof(struct mgsl_icount));
-		mutex_unlock(&info->port.mutex);
-		if (err)
-			return -EFAULT;
-	}
-
-	return 0;
-}
-
-static int get_params(SLMP_INFO * info, MGSL_PARAMS __user *user_params)
-{
-	int err;
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s get_params()\n",
-			 __FILE__,__LINE__, info->device_name);
-
-	mutex_lock(&info->port.mutex);
-	COPY_TO_USER(err,user_params, &info->params, sizeof(MGSL_PARAMS));
-	mutex_unlock(&info->port.mutex);
-	if (err) {
-		if ( debug_level >= DEBUG_LEVEL_INFO )
-			printk( "%s(%d):%s get_params() user buffer copy failed\n",
-				__FILE__,__LINE__,info->device_name);
-		return -EFAULT;
-	}
-
-	return 0;
-}
-
-static int set_params(SLMP_INFO * info, MGSL_PARAMS __user *new_params)
-{
- 	unsigned long flags;
-	MGSL_PARAMS tmp_params;
-	int err;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s set_params\n",
-			__FILE__,__LINE__,info->device_name );
-	COPY_FROM_USER(err,&tmp_params, new_params, sizeof(MGSL_PARAMS));
-	if (err) {
-		if ( debug_level >= DEBUG_LEVEL_INFO )
-			printk( "%s(%d):%s set_params() user buffer copy failed\n",
-				__FILE__,__LINE__,info->device_name);
-		return -EFAULT;
-	}
-
-	mutex_lock(&info->port.mutex);
-	spin_lock_irqsave(&info->lock,flags);
-	memcpy(&info->params,&tmp_params,sizeof(MGSL_PARAMS));
-	spin_unlock_irqrestore(&info->lock,flags);
-
- 	change_params(info);
-	mutex_unlock(&info->port.mutex);
-
-	return 0;
-}
-
-static int get_txidle(SLMP_INFO * info, int __user *idle_mode)
-{
-	int err;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s get_txidle()=%d\n",
-			 __FILE__,__LINE__, info->device_name, info->idle_mode);
-
-	COPY_TO_USER(err,idle_mode, &info->idle_mode, sizeof(int));
-	if (err) {
-		if ( debug_level >= DEBUG_LEVEL_INFO )
-			printk( "%s(%d):%s get_txidle() user buffer copy failed\n",
-				__FILE__,__LINE__,info->device_name);
-		return -EFAULT;
-	}
-
-	return 0;
-}
-
-static int set_txidle(SLMP_INFO * info, int idle_mode)
-{
- 	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s set_txidle(%d)\n",
-			__FILE__,__LINE__,info->device_name, idle_mode );
-
-	spin_lock_irqsave(&info->lock,flags);
-	info->idle_mode = idle_mode;
-	tx_set_idle( info );
-	spin_unlock_irqrestore(&info->lock,flags);
-	return 0;
-}
-
-static int tx_enable(SLMP_INFO * info, int enable)
-{
- 	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s tx_enable(%d)\n",
-			__FILE__,__LINE__,info->device_name, enable);
-
-	spin_lock_irqsave(&info->lock,flags);
-	if ( enable ) {
-		if ( !info->tx_enabled ) {
-			tx_start(info);
-		}
-	} else {
-		if ( info->tx_enabled )
-			tx_stop(info);
-	}
-	spin_unlock_irqrestore(&info->lock,flags);
-	return 0;
-}
-
-/* abort send HDLC frame
- */
-static int tx_abort(SLMP_INFO * info)
-{
- 	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s tx_abort()\n",
-			__FILE__,__LINE__,info->device_name);
-
-	spin_lock_irqsave(&info->lock,flags);
-	if ( info->tx_active && info->params.mode == MGSL_MODE_HDLC ) {
-		info->ie1_value &= ~UDRN;
-		info->ie1_value |= IDLE;
-		write_reg(info, IE1, info->ie1_value);	/* disable tx status interrupts */
-		write_reg(info, SR1, (unsigned char)(IDLE + UDRN));	/* clear pending */
-
-		write_reg(info, TXDMA + DSR, 0);		/* disable DMA channel */
-		write_reg(info, TXDMA + DCMD, SWABORT);	/* reset/init DMA channel */
-
-   		write_reg(info, CMD, TXABORT);
-	}
-	spin_unlock_irqrestore(&info->lock,flags);
-	return 0;
-}
-
-static int rx_enable(SLMP_INFO * info, int enable)
-{
- 	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s rx_enable(%d)\n",
-			__FILE__,__LINE__,info->device_name,enable);
-
-	spin_lock_irqsave(&info->lock,flags);
-	if ( enable ) {
-		if ( !info->rx_enabled )
-			rx_start(info);
-	} else {
-		if ( info->rx_enabled )
-			rx_stop(info);
-	}
-	spin_unlock_irqrestore(&info->lock,flags);
-	return 0;
-}
-
-/* wait for specified event to occur
- */
-static int wait_mgsl_event(SLMP_INFO * info, int __user *mask_ptr)
-{
- 	unsigned long flags;
-	int s;
-	int rc=0;
-	struct mgsl_icount cprev, cnow;
-	int events;
-	int mask;
-	struct	_input_signal_events oldsigs, newsigs;
-	DECLARE_WAITQUEUE(wait, current);
-
-	COPY_FROM_USER(rc,&mask, mask_ptr, sizeof(int));
-	if (rc) {
-		return  -EFAULT;
-	}
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s wait_mgsl_event(%d)\n",
-			__FILE__,__LINE__,info->device_name,mask);
-
-	spin_lock_irqsave(&info->lock,flags);
-
-	/* return immediately if state matches requested events */
-	get_signals(info);
-	s = info->serial_signals;
-
-	events = mask &
-		( ((s & SerialSignal_DSR) ? MgslEvent_DsrActive:MgslEvent_DsrInactive) +
- 		  ((s & SerialSignal_DCD) ? MgslEvent_DcdActive:MgslEvent_DcdInactive) +
-		  ((s & SerialSignal_CTS) ? MgslEvent_CtsActive:MgslEvent_CtsInactive) +
-		  ((s & SerialSignal_RI)  ? MgslEvent_RiActive :MgslEvent_RiInactive) );
-	if (events) {
-		spin_unlock_irqrestore(&info->lock,flags);
-		goto exit;
-	}
-
-	/* save current irq counts */
-	cprev = info->icount;
-	oldsigs = info->input_signal_events;
-
-	/* enable hunt and idle irqs if needed */
-	if (mask & (MgslEvent_ExitHuntMode+MgslEvent_IdleReceived)) {
-		unsigned char oldval = info->ie1_value;
-		unsigned char newval = oldval +
-			 (mask & MgslEvent_ExitHuntMode ? FLGD:0) +
-			 (mask & MgslEvent_IdleReceived ? IDLD:0);
-		if ( oldval != newval ) {
-			info->ie1_value = newval;
-			write_reg(info, IE1, info->ie1_value);
-		}
-	}
-
-	set_current_state(TASK_INTERRUPTIBLE);
-	add_wait_queue(&info->event_wait_q, &wait);
-
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	for(;;) {
-		schedule();
-		if (signal_pending(current)) {
-			rc = -ERESTARTSYS;
-			break;
-		}
-
-		/* get current irq counts */
-		spin_lock_irqsave(&info->lock,flags);
-		cnow = info->icount;
-		newsigs = info->input_signal_events;
-		set_current_state(TASK_INTERRUPTIBLE);
-		spin_unlock_irqrestore(&info->lock,flags);
-
-		/* if no change, wait aborted for some reason */
-		if (newsigs.dsr_up   == oldsigs.dsr_up   &&
-		    newsigs.dsr_down == oldsigs.dsr_down &&
-		    newsigs.dcd_up   == oldsigs.dcd_up   &&
-		    newsigs.dcd_down == oldsigs.dcd_down &&
-		    newsigs.cts_up   == oldsigs.cts_up   &&
-		    newsigs.cts_down == oldsigs.cts_down &&
-		    newsigs.ri_up    == oldsigs.ri_up    &&
-		    newsigs.ri_down  == oldsigs.ri_down  &&
-		    cnow.exithunt    == cprev.exithunt   &&
-		    cnow.rxidle      == cprev.rxidle) {
-			rc = -EIO;
-			break;
-		}
-
-		events = mask &
-			( (newsigs.dsr_up   != oldsigs.dsr_up   ? MgslEvent_DsrActive:0)   +
-			  (newsigs.dsr_down != oldsigs.dsr_down ? MgslEvent_DsrInactive:0) +
-			  (newsigs.dcd_up   != oldsigs.dcd_up   ? MgslEvent_DcdActive:0)   +
-			  (newsigs.dcd_down != oldsigs.dcd_down ? MgslEvent_DcdInactive:0) +
-			  (newsigs.cts_up   != oldsigs.cts_up   ? MgslEvent_CtsActive:0)   +
-			  (newsigs.cts_down != oldsigs.cts_down ? MgslEvent_CtsInactive:0) +
-			  (newsigs.ri_up    != oldsigs.ri_up    ? MgslEvent_RiActive:0)    +
-			  (newsigs.ri_down  != oldsigs.ri_down  ? MgslEvent_RiInactive:0)  +
-			  (cnow.exithunt    != cprev.exithunt   ? MgslEvent_ExitHuntMode:0) +
-			  (cnow.rxidle      != cprev.rxidle     ? MgslEvent_IdleReceived:0) );
-		if (events)
-			break;
-
-		cprev = cnow;
-		oldsigs = newsigs;
-	}
-
-	remove_wait_queue(&info->event_wait_q, &wait);
-	set_current_state(TASK_RUNNING);
-
-
-	if (mask & (MgslEvent_ExitHuntMode + MgslEvent_IdleReceived)) {
-		spin_lock_irqsave(&info->lock,flags);
-		if (!waitqueue_active(&info->event_wait_q)) {
-			/* disable enable exit hunt mode/idle rcvd IRQs */
-			info->ie1_value &= ~(FLGD|IDLD);
-			write_reg(info, IE1, info->ie1_value);
-		}
-		spin_unlock_irqrestore(&info->lock,flags);
-	}
-exit:
-	if ( rc == 0 )
-		PUT_USER(rc, events, mask_ptr);
-
-	return rc;
-}
-
-static int modem_input_wait(SLMP_INFO *info,int arg)
-{
- 	unsigned long flags;
-	int rc;
-	struct mgsl_icount cprev, cnow;
-	DECLARE_WAITQUEUE(wait, current);
-
-	/* save current irq counts */
-	spin_lock_irqsave(&info->lock,flags);
-	cprev = info->icount;
-	add_wait_queue(&info->status_event_wait_q, &wait);
-	set_current_state(TASK_INTERRUPTIBLE);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	for(;;) {
-		schedule();
-		if (signal_pending(current)) {
-			rc = -ERESTARTSYS;
-			break;
-		}
-
-		/* get new irq counts */
-		spin_lock_irqsave(&info->lock,flags);
-		cnow = info->icount;
-		set_current_state(TASK_INTERRUPTIBLE);
-		spin_unlock_irqrestore(&info->lock,flags);
-
-		/* if no change, wait aborted for some reason */
-		if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
-		    cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) {
-			rc = -EIO;
-			break;
-		}
-
-		/* check for change in caller specified modem input */
-		if ((arg & TIOCM_RNG && cnow.rng != cprev.rng) ||
-		    (arg & TIOCM_DSR && cnow.dsr != cprev.dsr) ||
-		    (arg & TIOCM_CD  && cnow.dcd != cprev.dcd) ||
-		    (arg & TIOCM_CTS && cnow.cts != cprev.cts)) {
-			rc = 0;
-			break;
-		}
-
-		cprev = cnow;
-	}
-	remove_wait_queue(&info->status_event_wait_q, &wait);
-	set_current_state(TASK_RUNNING);
-	return rc;
-}
-
-/* return the state of the serial control and status signals
- */
-static int tiocmget(struct tty_struct *tty)
-{
-	SLMP_INFO *info = tty->driver_data;
-	unsigned int result;
- 	unsigned long flags;
-
-	spin_lock_irqsave(&info->lock,flags);
- 	get_signals(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	result = ((info->serial_signals & SerialSignal_RTS) ? TIOCM_RTS:0) +
-		((info->serial_signals & SerialSignal_DTR) ? TIOCM_DTR:0) +
-		((info->serial_signals & SerialSignal_DCD) ? TIOCM_CAR:0) +
-		((info->serial_signals & SerialSignal_RI)  ? TIOCM_RNG:0) +
-		((info->serial_signals & SerialSignal_DSR) ? TIOCM_DSR:0) +
-		((info->serial_signals & SerialSignal_CTS) ? TIOCM_CTS:0);
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s tiocmget() value=%08X\n",
-			 __FILE__,__LINE__, info->device_name, result );
-	return result;
-}
-
-/* set modem control signals (DTR/RTS)
- */
-static int tiocmset(struct tty_struct *tty,
-					unsigned int set, unsigned int clear)
-{
-	SLMP_INFO *info = tty->driver_data;
- 	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s tiocmset(%x,%x)\n",
-			__FILE__,__LINE__,info->device_name, set, clear);
-
-	if (set & TIOCM_RTS)
-		info->serial_signals |= SerialSignal_RTS;
-	if (set & TIOCM_DTR)
-		info->serial_signals |= SerialSignal_DTR;
-	if (clear & TIOCM_RTS)
-		info->serial_signals &= ~SerialSignal_RTS;
-	if (clear & TIOCM_DTR)
-		info->serial_signals &= ~SerialSignal_DTR;
-
-	spin_lock_irqsave(&info->lock,flags);
- 	set_signals(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	return 0;
-}
-
-static int carrier_raised(struct tty_port *port)
-{
-	SLMP_INFO *info = container_of(port, SLMP_INFO, port);
-	unsigned long flags;
-
-	spin_lock_irqsave(&info->lock,flags);
- 	get_signals(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	return (info->serial_signals & SerialSignal_DCD) ? 1 : 0;
-}
-
-static void dtr_rts(struct tty_port *port, int on)
-{
-	SLMP_INFO *info = container_of(port, SLMP_INFO, port);
-	unsigned long flags;
-
-	spin_lock_irqsave(&info->lock,flags);
-	if (on)
-		info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR;
-	else
-		info->serial_signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
- 	set_signals(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-}
-
-/* Block the current process until the specified port is ready to open.
- */
-static int block_til_ready(struct tty_struct *tty, struct file *filp,
-			   SLMP_INFO *info)
-{
-	DECLARE_WAITQUEUE(wait, current);
-	int		retval;
-	bool		do_clocal = false;
-	bool		extra_count = false;
-	unsigned long	flags;
-	int		cd;
-	struct tty_port *port = &info->port;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s block_til_ready()\n",
-			 __FILE__,__LINE__, tty->driver->name );
-
-	if (filp->f_flags & O_NONBLOCK || tty->flags & (1 << TTY_IO_ERROR)){
-		/* nonblock mode is set or port is not enabled */
-		/* just verify that callout device is not active */
-		port->flags |= ASYNC_NORMAL_ACTIVE;
-		return 0;
-	}
-
-	if (tty->termios->c_cflag & CLOCAL)
-		do_clocal = true;
-
-	/* Wait for carrier detect and the line to become
-	 * free (i.e., not in use by the callout).  While we are in
-	 * this loop, port->count is dropped by one, so that
-	 * close() knows when to free things.  We restore it upon
-	 * exit, either normal or abnormal.
-	 */
-
-	retval = 0;
-	add_wait_queue(&port->open_wait, &wait);
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s block_til_ready() before block, count=%d\n",
-			 __FILE__,__LINE__, tty->driver->name, port->count );
-
-	spin_lock_irqsave(&info->lock, flags);
-	if (!tty_hung_up_p(filp)) {
-		extra_count = true;
-		port->count--;
-	}
-	spin_unlock_irqrestore(&info->lock, flags);
-	port->blocked_open++;
-
-	while (1) {
-		if (tty->termios->c_cflag & CBAUD)
-			tty_port_raise_dtr_rts(port);
-
-		set_current_state(TASK_INTERRUPTIBLE);
-
-		if (tty_hung_up_p(filp) || !(port->flags & ASYNC_INITIALIZED)){
-			retval = (port->flags & ASYNC_HUP_NOTIFY) ?
-					-EAGAIN : -ERESTARTSYS;
-			break;
-		}
-
-		cd = tty_port_carrier_raised(port);
-
- 		if (!(port->flags & ASYNC_CLOSING) && (do_clocal || cd))
- 			break;
-
-		if (signal_pending(current)) {
-			retval = -ERESTARTSYS;
-			break;
-		}
-
-		if (debug_level >= DEBUG_LEVEL_INFO)
-			printk("%s(%d):%s block_til_ready() count=%d\n",
-				 __FILE__,__LINE__, tty->driver->name, port->count );
-
-		tty_unlock();
-		schedule();
-		tty_lock();
-	}
-
-	set_current_state(TASK_RUNNING);
-	remove_wait_queue(&port->open_wait, &wait);
-
-	if (extra_count)
-		port->count++;
-	port->blocked_open--;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s block_til_ready() after, count=%d\n",
-			 __FILE__,__LINE__, tty->driver->name, port->count );
-
-	if (!retval)
-		port->flags |= ASYNC_NORMAL_ACTIVE;
-
-	return retval;
-}
-
-static int alloc_dma_bufs(SLMP_INFO *info)
-{
-	unsigned short BuffersPerFrame;
-	unsigned short BufferCount;
-
-	// Force allocation to start at 64K boundary for each port.
-	// This is necessary because *all* buffer descriptors for a port
-	// *must* be in the same 64K block. All descriptors on a port
-	// share a common 'base' address (upper 8 bits of 24 bits) programmed
-	// into the CBP register.
-	info->port_array[0]->last_mem_alloc = (SCA_MEM_SIZE/4) * info->port_num;
-
-	/* Calculate the number of DMA buffers necessary to hold the */
-	/* largest allowable frame size. Note: If the max frame size is */
-	/* not an even multiple of the DMA buffer size then we need to */
-	/* round the buffer count per frame up one. */
-
-	BuffersPerFrame = (unsigned short)(info->max_frame_size/SCABUFSIZE);
-	if ( info->max_frame_size % SCABUFSIZE )
-		BuffersPerFrame++;
-
-	/* calculate total number of data buffers (SCABUFSIZE) possible
-	 * in one ports memory (SCA_MEM_SIZE/4) after allocating memory
-	 * for the descriptor list (BUFFERLISTSIZE).
-	 */
-	BufferCount = (SCA_MEM_SIZE/4 - BUFFERLISTSIZE)/SCABUFSIZE;
-
-	/* limit number of buffers to maximum amount of descriptors */
-	if (BufferCount > BUFFERLISTSIZE/sizeof(SCADESC))
-		BufferCount = BUFFERLISTSIZE/sizeof(SCADESC);
-
-	/* use enough buffers to transmit one max size frame */
-	info->tx_buf_count = BuffersPerFrame + 1;
-
-	/* never use more than half the available buffers for transmit */
-	if (info->tx_buf_count > (BufferCount/2))
-		info->tx_buf_count = BufferCount/2;
-
-	if (info->tx_buf_count > SCAMAXDESC)
-		info->tx_buf_count = SCAMAXDESC;
-
-	/* use remaining buffers for receive */
-	info->rx_buf_count = BufferCount - info->tx_buf_count;
-
-	if (info->rx_buf_count > SCAMAXDESC)
-		info->rx_buf_count = SCAMAXDESC;
-
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk("%s(%d):%s Allocating %d TX and %d RX DMA buffers.\n",
-			__FILE__,__LINE__, info->device_name,
-			info->tx_buf_count,info->rx_buf_count);
-
-	if ( alloc_buf_list( info ) < 0 ||
-		alloc_frame_bufs(info,
-		  			info->rx_buf_list,
-		  			info->rx_buf_list_ex,
-					info->rx_buf_count) < 0 ||
-		alloc_frame_bufs(info,
-					info->tx_buf_list,
-					info->tx_buf_list_ex,
-					info->tx_buf_count) < 0 ||
-		alloc_tmp_rx_buf(info) < 0 ) {
-		printk("%s(%d):%s Can't allocate DMA buffer memory\n",
-			__FILE__,__LINE__, info->device_name);
-		return -ENOMEM;
-	}
-
-	rx_reset_buffers( info );
-
-	return 0;
-}
-
-/* Allocate DMA buffers for the transmit and receive descriptor lists.
- */
-static int alloc_buf_list(SLMP_INFO *info)
-{
-	unsigned int i;
-
-	/* build list in adapter shared memory */
-	info->buffer_list = info->memory_base + info->port_array[0]->last_mem_alloc;
-	info->buffer_list_phys = info->port_array[0]->last_mem_alloc;
-	info->port_array[0]->last_mem_alloc += BUFFERLISTSIZE;
-
-	memset(info->buffer_list, 0, BUFFERLISTSIZE);
-
-	/* Save virtual address pointers to the receive and */
-	/* transmit buffer lists. (Receive 1st). These pointers will */
-	/* be used by the processor to access the lists. */
-	info->rx_buf_list = (SCADESC *)info->buffer_list;
-
-	info->tx_buf_list = (SCADESC *)info->buffer_list;
-	info->tx_buf_list += info->rx_buf_count;
-
-	/* Build links for circular buffer entry lists (tx and rx)
-	 *
-	 * Note: links are physical addresses read by the SCA device
-	 * to determine the next buffer entry to use.
-	 */
-
-	for ( i = 0; i < info->rx_buf_count; i++ ) {
-		/* calculate and store physical address of this buffer entry */
-		info->rx_buf_list_ex[i].phys_entry =
-			info->buffer_list_phys + (i * sizeof(SCABUFSIZE));
-
-		/* calculate and store physical address of */
-		/* next entry in cirular list of entries */
-		info->rx_buf_list[i].next = info->buffer_list_phys;
-		if ( i < info->rx_buf_count - 1 )
-			info->rx_buf_list[i].next += (i + 1) * sizeof(SCADESC);
-
-		info->rx_buf_list[i].length = SCABUFSIZE;
-	}
-
-	for ( i = 0; i < info->tx_buf_count; i++ ) {
-		/* calculate and store physical address of this buffer entry */
-		info->tx_buf_list_ex[i].phys_entry = info->buffer_list_phys +
-			((info->rx_buf_count + i) * sizeof(SCADESC));
-
-		/* calculate and store physical address of */
-		/* next entry in cirular list of entries */
-
-		info->tx_buf_list[i].next = info->buffer_list_phys +
-			info->rx_buf_count * sizeof(SCADESC);
-
-		if ( i < info->tx_buf_count - 1 )
-			info->tx_buf_list[i].next += (i + 1) * sizeof(SCADESC);
-	}
-
-	return 0;
-}
-
-/* Allocate the frame DMA buffers used by the specified buffer list.
- */
-static int alloc_frame_bufs(SLMP_INFO *info, SCADESC *buf_list,SCADESC_EX *buf_list_ex,int count)
-{
-	int i;
-	unsigned long phys_addr;
-
-	for ( i = 0; i < count; i++ ) {
-		buf_list_ex[i].virt_addr = info->memory_base + info->port_array[0]->last_mem_alloc;
-		phys_addr = info->port_array[0]->last_mem_alloc;
-		info->port_array[0]->last_mem_alloc += SCABUFSIZE;
-
-		buf_list[i].buf_ptr  = (unsigned short)phys_addr;
-		buf_list[i].buf_base = (unsigned char)(phys_addr >> 16);
-	}
-
-	return 0;
-}
-
-static void free_dma_bufs(SLMP_INFO *info)
-{
-	info->buffer_list = NULL;
-	info->rx_buf_list = NULL;
-	info->tx_buf_list = NULL;
-}
-
-/* allocate buffer large enough to hold max_frame_size.
- * This buffer is used to pass an assembled frame to the line discipline.
- */
-static int alloc_tmp_rx_buf(SLMP_INFO *info)
-{
-	info->tmp_rx_buf = kmalloc(info->max_frame_size, GFP_KERNEL);
-	if (info->tmp_rx_buf == NULL)
-		return -ENOMEM;
-	return 0;
-}
-
-static void free_tmp_rx_buf(SLMP_INFO *info)
-{
-	kfree(info->tmp_rx_buf);
-	info->tmp_rx_buf = NULL;
-}
-
-static int claim_resources(SLMP_INFO *info)
-{
-	if (request_mem_region(info->phys_memory_base,SCA_MEM_SIZE,"synclinkmp") == NULL) {
-		printk( "%s(%d):%s mem addr conflict, Addr=%08X\n",
-			__FILE__,__LINE__,info->device_name, info->phys_memory_base);
-		info->init_error = DiagStatus_AddressConflict;
-		goto errout;
-	}
-	else
-		info->shared_mem_requested = true;
-
-	if (request_mem_region(info->phys_lcr_base + info->lcr_offset,128,"synclinkmp") == NULL) {
-		printk( "%s(%d):%s lcr mem addr conflict, Addr=%08X\n",
-			__FILE__,__LINE__,info->device_name, info->phys_lcr_base);
-		info->init_error = DiagStatus_AddressConflict;
-		goto errout;
-	}
-	else
-		info->lcr_mem_requested = true;
-
-	if (request_mem_region(info->phys_sca_base + info->sca_offset,SCA_BASE_SIZE,"synclinkmp") == NULL) {
-		printk( "%s(%d):%s sca mem addr conflict, Addr=%08X\n",
-			__FILE__,__LINE__,info->device_name, info->phys_sca_base);
-		info->init_error = DiagStatus_AddressConflict;
-		goto errout;
-	}
-	else
-		info->sca_base_requested = true;
-
-	if (request_mem_region(info->phys_statctrl_base + info->statctrl_offset,SCA_REG_SIZE,"synclinkmp") == NULL) {
-		printk( "%s(%d):%s stat/ctrl mem addr conflict, Addr=%08X\n",
-			__FILE__,__LINE__,info->device_name, info->phys_statctrl_base);
-		info->init_error = DiagStatus_AddressConflict;
-		goto errout;
-	}
-	else
-		info->sca_statctrl_requested = true;
-
-	info->memory_base = ioremap_nocache(info->phys_memory_base,
-								SCA_MEM_SIZE);
-	if (!info->memory_base) {
-		printk( "%s(%d):%s Cant map shared memory, MemAddr=%08X\n",
-			__FILE__,__LINE__,info->device_name, info->phys_memory_base );
-		info->init_error = DiagStatus_CantAssignPciResources;
-		goto errout;
-	}
-
-	info->lcr_base = ioremap_nocache(info->phys_lcr_base, PAGE_SIZE);
-	if (!info->lcr_base) {
-		printk( "%s(%d):%s Cant map LCR memory, MemAddr=%08X\n",
-			__FILE__,__LINE__,info->device_name, info->phys_lcr_base );
-		info->init_error = DiagStatus_CantAssignPciResources;
-		goto errout;
-	}
-	info->lcr_base += info->lcr_offset;
-
-	info->sca_base = ioremap_nocache(info->phys_sca_base, PAGE_SIZE);
-	if (!info->sca_base) {
-		printk( "%s(%d):%s Cant map SCA memory, MemAddr=%08X\n",
-			__FILE__,__LINE__,info->device_name, info->phys_sca_base );
-		info->init_error = DiagStatus_CantAssignPciResources;
-		goto errout;
-	}
-	info->sca_base += info->sca_offset;
-
-	info->statctrl_base = ioremap_nocache(info->phys_statctrl_base,
-								PAGE_SIZE);
-	if (!info->statctrl_base) {
-		printk( "%s(%d):%s Cant map SCA Status/Control memory, MemAddr=%08X\n",
-			__FILE__,__LINE__,info->device_name, info->phys_statctrl_base );
-		info->init_error = DiagStatus_CantAssignPciResources;
-		goto errout;
-	}
-	info->statctrl_base += info->statctrl_offset;
-
-	if ( !memory_test(info) ) {
-		printk( "%s(%d):Shared Memory Test failed for device %s MemAddr=%08X\n",
-			__FILE__,__LINE__,info->device_name, info->phys_memory_base );
-		info->init_error = DiagStatus_MemoryError;
-		goto errout;
-	}
-
-	return 0;
-
-errout:
-	release_resources( info );
-	return -ENODEV;
-}
-
-static void release_resources(SLMP_INFO *info)
-{
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk( "%s(%d):%s release_resources() entry\n",
-			__FILE__,__LINE__,info->device_name );
-
-	if ( info->irq_requested ) {
-		free_irq(info->irq_level, info);
-		info->irq_requested = false;
-	}
-
-	if ( info->shared_mem_requested ) {
-		release_mem_region(info->phys_memory_base,SCA_MEM_SIZE);
-		info->shared_mem_requested = false;
-	}
-	if ( info->lcr_mem_requested ) {
-		release_mem_region(info->phys_lcr_base + info->lcr_offset,128);
-		info->lcr_mem_requested = false;
-	}
-	if ( info->sca_base_requested ) {
-		release_mem_region(info->phys_sca_base + info->sca_offset,SCA_BASE_SIZE);
-		info->sca_base_requested = false;
-	}
-	if ( info->sca_statctrl_requested ) {
-		release_mem_region(info->phys_statctrl_base + info->statctrl_offset,SCA_REG_SIZE);
-		info->sca_statctrl_requested = false;
-	}
-
-	if (info->memory_base){
-		iounmap(info->memory_base);
-		info->memory_base = NULL;
-	}
-
-	if (info->sca_base) {
-		iounmap(info->sca_base - info->sca_offset);
-		info->sca_base=NULL;
-	}
-
-	if (info->statctrl_base) {
-		iounmap(info->statctrl_base - info->statctrl_offset);
-		info->statctrl_base=NULL;
-	}
-
-	if (info->lcr_base){
-		iounmap(info->lcr_base - info->lcr_offset);
-		info->lcr_base = NULL;
-	}
-
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk( "%s(%d):%s release_resources() exit\n",
-			__FILE__,__LINE__,info->device_name );
-}
-
-/* Add the specified device instance data structure to the
- * global linked list of devices and increment the device count.
- */
-static void add_device(SLMP_INFO *info)
-{
-	info->next_device = NULL;
-	info->line = synclinkmp_device_count;
-	sprintf(info->device_name,"ttySLM%dp%d",info->adapter_num,info->port_num);
-
-	if (info->line < MAX_DEVICES) {
-		if (maxframe[info->line])
-			info->max_frame_size = maxframe[info->line];
-	}
-
-	synclinkmp_device_count++;
-
-	if ( !synclinkmp_device_list )
-		synclinkmp_device_list = info;
-	else {
-		SLMP_INFO *current_dev = synclinkmp_device_list;
-		while( current_dev->next_device )
-			current_dev = current_dev->next_device;
-		current_dev->next_device = info;
-	}
-
-	if ( info->max_frame_size < 4096 )
-		info->max_frame_size = 4096;
-	else if ( info->max_frame_size > 65535 )
-		info->max_frame_size = 65535;
-
-	printk( "SyncLink MultiPort %s: "
-		"Mem=(%08x %08X %08x %08X) IRQ=%d MaxFrameSize=%u\n",
-		info->device_name,
-		info->phys_sca_base,
-		info->phys_memory_base,
-		info->phys_statctrl_base,
-		info->phys_lcr_base,
-		info->irq_level,
-		info->max_frame_size );
-
-#if SYNCLINK_GENERIC_HDLC
-	hdlcdev_init(info);
-#endif
-}
-
-static const struct tty_port_operations port_ops = {
-	.carrier_raised = carrier_raised,
-	.dtr_rts = dtr_rts,
-};
-
-/* Allocate and initialize a device instance structure
- *
- * Return Value:	pointer to SLMP_INFO if success, otherwise NULL
- */
-static SLMP_INFO *alloc_dev(int adapter_num, int port_num, struct pci_dev *pdev)
-{
-	SLMP_INFO *info;
-
-	info = kzalloc(sizeof(SLMP_INFO),
-		 GFP_KERNEL);
-
-	if (!info) {
-		printk("%s(%d) Error can't allocate device instance data for adapter %d, port %d\n",
-			__FILE__,__LINE__, adapter_num, port_num);
-	} else {
-		tty_port_init(&info->port);
-		info->port.ops = &port_ops;
-		info->magic = MGSL_MAGIC;
-		INIT_WORK(&info->task, bh_handler);
-		info->max_frame_size = 4096;
-		info->port.close_delay = 5*HZ/10;
-		info->port.closing_wait = 30*HZ;
-		init_waitqueue_head(&info->status_event_wait_q);
-		init_waitqueue_head(&info->event_wait_q);
-		spin_lock_init(&info->netlock);
-		memcpy(&info->params,&default_params,sizeof(MGSL_PARAMS));
-		info->idle_mode = HDLC_TXIDLE_FLAGS;
-		info->adapter_num = adapter_num;
-		info->port_num = port_num;
-
-		/* Copy configuration info to device instance data */
-		info->irq_level = pdev->irq;
-		info->phys_lcr_base = pci_resource_start(pdev,0);
-		info->phys_sca_base = pci_resource_start(pdev,2);
-		info->phys_memory_base = pci_resource_start(pdev,3);
-		info->phys_statctrl_base = pci_resource_start(pdev,4);
-
-		/* Because veremap only works on page boundaries we must map
-		 * a larger area than is actually implemented for the LCR
-		 * memory range. We map a full page starting at the page boundary.
-		 */
-		info->lcr_offset    = info->phys_lcr_base & (PAGE_SIZE-1);
-		info->phys_lcr_base &= ~(PAGE_SIZE-1);
-
-		info->sca_offset    = info->phys_sca_base & (PAGE_SIZE-1);
-		info->phys_sca_base &= ~(PAGE_SIZE-1);
-
-		info->statctrl_offset    = info->phys_statctrl_base & (PAGE_SIZE-1);
-		info->phys_statctrl_base &= ~(PAGE_SIZE-1);
-
-		info->bus_type = MGSL_BUS_TYPE_PCI;
-		info->irq_flags = IRQF_SHARED;
-
-		setup_timer(&info->tx_timer, tx_timeout, (unsigned long)info);
-		setup_timer(&info->status_timer, status_timeout,
-				(unsigned long)info);
-
-		/* Store the PCI9050 misc control register value because a flaw
-		 * in the PCI9050 prevents LCR registers from being read if
-		 * BIOS assigns an LCR base address with bit 7 set.
-		 *
-		 * Only the misc control register is accessed for which only
-		 * write access is needed, so set an initial value and change
-		 * bits to the device instance data as we write the value
-		 * to the actual misc control register.
-		 */
-		info->misc_ctrl_value = 0x087e4546;
-
-		/* initial port state is unknown - if startup errors
-		 * occur, init_error will be set to indicate the
-		 * problem. Once the port is fully initialized,
-		 * this value will be set to 0 to indicate the
-		 * port is available.
-		 */
-		info->init_error = -1;
-	}
-
-	return info;
-}
-
-static void device_init(int adapter_num, struct pci_dev *pdev)
-{
-	SLMP_INFO *port_array[SCA_MAX_PORTS];
-	int port;
-
-	/* allocate device instances for up to SCA_MAX_PORTS devices */
-	for ( port = 0; port < SCA_MAX_PORTS; ++port ) {
-		port_array[port] = alloc_dev(adapter_num,port,pdev);
-		if( port_array[port] == NULL ) {
-			for ( --port; port >= 0; --port )
-				kfree(port_array[port]);
-			return;
-		}
-	}
-
-	/* give copy of port_array to all ports and add to device list  */
-	for ( port = 0; port < SCA_MAX_PORTS; ++port ) {
-		memcpy(port_array[port]->port_array,port_array,sizeof(port_array));
-		add_device( port_array[port] );
-		spin_lock_init(&port_array[port]->lock);
-	}
-
-	/* Allocate and claim adapter resources */
-	if ( !claim_resources(port_array[0]) ) {
-
-		alloc_dma_bufs(port_array[0]);
-
-		/* copy resource information from first port to others */
-		for ( port = 1; port < SCA_MAX_PORTS; ++port ) {
-			port_array[port]->lock  = port_array[0]->lock;
-			port_array[port]->irq_level     = port_array[0]->irq_level;
-			port_array[port]->memory_base   = port_array[0]->memory_base;
-			port_array[port]->sca_base      = port_array[0]->sca_base;
-			port_array[port]->statctrl_base = port_array[0]->statctrl_base;
-			port_array[port]->lcr_base      = port_array[0]->lcr_base;
-			alloc_dma_bufs(port_array[port]);
-		}
-
-		if ( request_irq(port_array[0]->irq_level,
-					synclinkmp_interrupt,
-					port_array[0]->irq_flags,
-					port_array[0]->device_name,
-					port_array[0]) < 0 ) {
-			printk( "%s(%d):%s Cant request interrupt, IRQ=%d\n",
-				__FILE__,__LINE__,
-				port_array[0]->device_name,
-				port_array[0]->irq_level );
-		}
-		else {
-			port_array[0]->irq_requested = true;
-			adapter_test(port_array[0]);
-		}
-	}
-}
-
-static const struct tty_operations ops = {
-	.open = open,
-	.close = close,
-	.write = write,
-	.put_char = put_char,
-	.flush_chars = flush_chars,
-	.write_room = write_room,
-	.chars_in_buffer = chars_in_buffer,
-	.flush_buffer = flush_buffer,
-	.ioctl = ioctl,
-	.throttle = throttle,
-	.unthrottle = unthrottle,
-	.send_xchar = send_xchar,
-	.break_ctl = set_break,
-	.wait_until_sent = wait_until_sent,
-	.set_termios = set_termios,
-	.stop = tx_hold,
-	.start = tx_release,
-	.hangup = hangup,
-	.tiocmget = tiocmget,
-	.tiocmset = tiocmset,
-	.get_icount = get_icount,
-	.proc_fops = &synclinkmp_proc_fops,
-};
-
-
-static void synclinkmp_cleanup(void)
-{
-	int rc;
-	SLMP_INFO *info;
-	SLMP_INFO *tmp;
-
-	printk("Unloading %s %s\n", driver_name, driver_version);
-
-	if (serial_driver) {
-		if ((rc = tty_unregister_driver(serial_driver)))
-			printk("%s(%d) failed to unregister tty driver err=%d\n",
-			       __FILE__,__LINE__,rc);
-		put_tty_driver(serial_driver);
-	}
-
-	/* reset devices */
-	info = synclinkmp_device_list;
-	while(info) {
-		reset_port(info);
-		info = info->next_device;
-	}
-
-	/* release devices */
-	info = synclinkmp_device_list;
-	while(info) {
-#if SYNCLINK_GENERIC_HDLC
-		hdlcdev_exit(info);
-#endif
-		free_dma_bufs(info);
-		free_tmp_rx_buf(info);
-		if ( info->port_num == 0 ) {
-			if (info->sca_base)
-				write_reg(info, LPR, 1); /* set low power mode */
-			release_resources(info);
-		}
-		tmp = info;
-		info = info->next_device;
-		kfree(tmp);
-	}
-
-	pci_unregister_driver(&synclinkmp_pci_driver);
-}
-
-/* Driver initialization entry point.
- */
-
-static int __init synclinkmp_init(void)
-{
-	int rc;
-
-	if (break_on_load) {
-	 	synclinkmp_get_text_ptr();
-  		BREAKPOINT();
-	}
-
- 	printk("%s %s\n", driver_name, driver_version);
-
-	if ((rc = pci_register_driver(&synclinkmp_pci_driver)) < 0) {
-		printk("%s:failed to register PCI driver, error=%d\n",__FILE__,rc);
-		return rc;
-	}
-
-	serial_driver = alloc_tty_driver(128);
-	if (!serial_driver) {
-		rc = -ENOMEM;
-		goto error;
-	}
-
-	/* Initialize the tty_driver structure */
-
-	serial_driver->owner = THIS_MODULE;
-	serial_driver->driver_name = "synclinkmp";
-	serial_driver->name = "ttySLM";
-	serial_driver->major = ttymajor;
-	serial_driver->minor_start = 64;
-	serial_driver->type = TTY_DRIVER_TYPE_SERIAL;
-	serial_driver->subtype = SERIAL_TYPE_NORMAL;
-	serial_driver->init_termios = tty_std_termios;
-	serial_driver->init_termios.c_cflag =
-		B9600 | CS8 | CREAD | HUPCL | CLOCAL;
-	serial_driver->init_termios.c_ispeed = 9600;
-	serial_driver->init_termios.c_ospeed = 9600;
-	serial_driver->flags = TTY_DRIVER_REAL_RAW;
-	tty_set_operations(serial_driver, &ops);
-	if ((rc = tty_register_driver(serial_driver)) < 0) {
-		printk("%s(%d):Couldn't register serial driver\n",
-			__FILE__,__LINE__);
-		put_tty_driver(serial_driver);
-		serial_driver = NULL;
-		goto error;
-	}
-
- 	printk("%s %s, tty major#%d\n",
-		driver_name, driver_version,
-		serial_driver->major);
-
-	return 0;
-
-error:
-	synclinkmp_cleanup();
-	return rc;
-}
-
-static void __exit synclinkmp_exit(void)
-{
-	synclinkmp_cleanup();
-}
-
-module_init(synclinkmp_init);
-module_exit(synclinkmp_exit);
-
-/* Set the port for internal loopback mode.
- * The TxCLK and RxCLK signals are generated from the BRG and
- * the TxD is looped back to the RxD internally.
- */
-static void enable_loopback(SLMP_INFO *info, int enable)
-{
-	if (enable) {
-		/* MD2 (Mode Register 2)
-		 * 01..00  CNCT<1..0> Channel Connection 11=Local Loopback
-		 */
-		write_reg(info, MD2, (unsigned char)(read_reg(info, MD2) | (BIT1 + BIT0)));
-
-		/* degate external TxC clock source */
-		info->port_array[0]->ctrlreg_value |= (BIT0 << (info->port_num * 2));
-		write_control_reg(info);
-
-		/* RXS/TXS (Rx/Tx clock source)
-		 * 07      Reserved, must be 0
-		 * 06..04  Clock Source, 100=BRG
-		 * 03..00  Clock Divisor, 0000=1
-		 */
-		write_reg(info, RXS, 0x40);
-		write_reg(info, TXS, 0x40);
-
-	} else {
-		/* MD2 (Mode Register 2)
-	 	 * 01..00  CNCT<1..0> Channel connection, 0=normal
-		 */
-		write_reg(info, MD2, (unsigned char)(read_reg(info, MD2) & ~(BIT1 + BIT0)));
-
-		/* RXS/TXS (Rx/Tx clock source)
-		 * 07      Reserved, must be 0
-		 * 06..04  Clock Source, 000=RxC/TxC Pin
-		 * 03..00  Clock Divisor, 0000=1
-		 */
-		write_reg(info, RXS, 0x00);
-		write_reg(info, TXS, 0x00);
-	}
-
-	/* set LinkSpeed if available, otherwise default to 2Mbps */
-	if (info->params.clock_speed)
-		set_rate(info, info->params.clock_speed);
-	else
-		set_rate(info, 3686400);
-}
-
-/* Set the baud rate register to the desired speed
- *
- *	data_rate	data rate of clock in bits per second
- *			A data rate of 0 disables the AUX clock.
- */
-static void set_rate( SLMP_INFO *info, u32 data_rate )
-{
-       	u32 TMCValue;
-       	unsigned char BRValue;
-	u32 Divisor=0;
-
-	/* fBRG = fCLK/(TMC * 2^BR)
-	 */
-	if (data_rate != 0) {
-		Divisor = 14745600/data_rate;
-		if (!Divisor)
-			Divisor = 1;
-
-		TMCValue = Divisor;
-
-		BRValue = 0;
-		if (TMCValue != 1 && TMCValue != 2) {
-			/* BRValue of 0 provides 50/50 duty cycle *only* when
-			 * TMCValue is 1 or 2. BRValue of 1 to 9 always provides
-			 * 50/50 duty cycle.
-			 */
-			BRValue = 1;
-			TMCValue >>= 1;
-		}
-
-		/* while TMCValue is too big for TMC register, divide
-		 * by 2 and increment BR exponent.
-		 */
-		for(; TMCValue > 256 && BRValue < 10; BRValue++)
-			TMCValue >>= 1;
-
-		write_reg(info, TXS,
-			(unsigned char)((read_reg(info, TXS) & 0xf0) | BRValue));
-		write_reg(info, RXS,
-			(unsigned char)((read_reg(info, RXS) & 0xf0) | BRValue));
-		write_reg(info, TMC, (unsigned char)TMCValue);
-	}
-	else {
-		write_reg(info, TXS,0);
-		write_reg(info, RXS,0);
-		write_reg(info, TMC, 0);
-	}
-}
-
-/* Disable receiver
- */
-static void rx_stop(SLMP_INFO *info)
-{
-	if (debug_level >= DEBUG_LEVEL_ISR)
-		printk("%s(%d):%s rx_stop()\n",
-			 __FILE__,__LINE__, info->device_name );
-
-	write_reg(info, CMD, RXRESET);
-
-	info->ie0_value &= ~RXRDYE;
-	write_reg(info, IE0, info->ie0_value);	/* disable Rx data interrupts */
-
-	write_reg(info, RXDMA + DSR, 0);	/* disable Rx DMA */
-	write_reg(info, RXDMA + DCMD, SWABORT);	/* reset/init Rx DMA */
-	write_reg(info, RXDMA + DIR, 0);	/* disable Rx DMA interrupts */
-
-	info->rx_enabled = false;
-	info->rx_overflow = false;
-}
-
-/* enable the receiver
- */
-static void rx_start(SLMP_INFO *info)
-{
-	int i;
-
-	if (debug_level >= DEBUG_LEVEL_ISR)
-		printk("%s(%d):%s rx_start()\n",
-			 __FILE__,__LINE__, info->device_name );
-
-	write_reg(info, CMD, RXRESET);
-
-	if ( info->params.mode == MGSL_MODE_HDLC ) {
-		/* HDLC, disabe IRQ on rxdata */
-		info->ie0_value &= ~RXRDYE;
-		write_reg(info, IE0, info->ie0_value);
-
-		/* Reset all Rx DMA buffers and program rx dma */
-		write_reg(info, RXDMA + DSR, 0);		/* disable Rx DMA */
-		write_reg(info, RXDMA + DCMD, SWABORT);	/* reset/init Rx DMA */
-
-		for (i = 0; i < info->rx_buf_count; i++) {
-			info->rx_buf_list[i].status = 0xff;
-
-			// throttle to 4 shared memory writes at a time to prevent
-			// hogging local bus (keep latency time for DMA requests low).
-			if (!(i % 4))
-				read_status_reg(info);
-		}
-		info->current_rx_buf = 0;
-
-		/* set current/1st descriptor address */
-		write_reg16(info, RXDMA + CDA,
-			info->rx_buf_list_ex[0].phys_entry);
-
-		/* set new last rx descriptor address */
-		write_reg16(info, RXDMA + EDA,
-			info->rx_buf_list_ex[info->rx_buf_count - 1].phys_entry);
-
-		/* set buffer length (shared by all rx dma data buffers) */
-		write_reg16(info, RXDMA + BFL, SCABUFSIZE);
-
-		write_reg(info, RXDMA + DIR, 0x60);	/* enable Rx DMA interrupts (EOM/BOF) */
-		write_reg(info, RXDMA + DSR, 0xf2);	/* clear Rx DMA IRQs, enable Rx DMA */
-	} else {
-		/* async, enable IRQ on rxdata */
-		info->ie0_value |= RXRDYE;
-		write_reg(info, IE0, info->ie0_value);
-	}
-
-	write_reg(info, CMD, RXENABLE);
-
-	info->rx_overflow = false;
-	info->rx_enabled = true;
-}
-
-/* Enable the transmitter and send a transmit frame if
- * one is loaded in the DMA buffers.
- */
-static void tx_start(SLMP_INFO *info)
-{
-	if (debug_level >= DEBUG_LEVEL_ISR)
-		printk("%s(%d):%s tx_start() tx_count=%d\n",
-			 __FILE__,__LINE__, info->device_name,info->tx_count );
-
-	if (!info->tx_enabled ) {
-		write_reg(info, CMD, TXRESET);
-		write_reg(info, CMD, TXENABLE);
-		info->tx_enabled = true;
-	}
-
-	if ( info->tx_count ) {
-
-		/* If auto RTS enabled and RTS is inactive, then assert */
-		/* RTS and set a flag indicating that the driver should */
-		/* negate RTS when the transmission completes. */
-
-		info->drop_rts_on_tx_done = false;
-
-		if (info->params.mode != MGSL_MODE_ASYNC) {
-
-			if ( info->params.flags & HDLC_FLAG_AUTO_RTS ) {
-				get_signals( info );
-				if ( !(info->serial_signals & SerialSignal_RTS) ) {
-					info->serial_signals |= SerialSignal_RTS;
-					set_signals( info );
-					info->drop_rts_on_tx_done = true;
-				}
-			}
-
-			write_reg16(info, TRC0,
-				(unsigned short)(((tx_negate_fifo_level-1)<<8) + tx_active_fifo_level));
-
-			write_reg(info, TXDMA + DSR, 0); 		/* disable DMA channel */
-			write_reg(info, TXDMA + DCMD, SWABORT);	/* reset/init DMA channel */
-	
-			/* set TX CDA (current descriptor address) */
-			write_reg16(info, TXDMA + CDA,
-				info->tx_buf_list_ex[0].phys_entry);
-	
-			/* set TX EDA (last descriptor address) */
-			write_reg16(info, TXDMA + EDA,
-				info->tx_buf_list_ex[info->last_tx_buf].phys_entry);
-	
-			/* enable underrun IRQ */
-			info->ie1_value &= ~IDLE;
-			info->ie1_value |= UDRN;
-			write_reg(info, IE1, info->ie1_value);
-			write_reg(info, SR1, (unsigned char)(IDLE + UDRN));
-	
-			write_reg(info, TXDMA + DIR, 0x40);		/* enable Tx DMA interrupts (EOM) */
-			write_reg(info, TXDMA + DSR, 0xf2);		/* clear Tx DMA IRQs, enable Tx DMA */
-	
-			mod_timer(&info->tx_timer, jiffies +
-					msecs_to_jiffies(5000));
-		}
-		else {
-			tx_load_fifo(info);
-			/* async, enable IRQ on txdata */
-			info->ie0_value |= TXRDYE;
-			write_reg(info, IE0, info->ie0_value);
-		}
-
-		info->tx_active = true;
-	}
-}
-
-/* stop the transmitter and DMA
- */
-static void tx_stop( SLMP_INFO *info )
-{
-	if (debug_level >= DEBUG_LEVEL_ISR)
-		printk("%s(%d):%s tx_stop()\n",
-			 __FILE__,__LINE__, info->device_name );
-
-	del_timer(&info->tx_timer);
-
-	write_reg(info, TXDMA + DSR, 0);		/* disable DMA channel */
-	write_reg(info, TXDMA + DCMD, SWABORT);	/* reset/init DMA channel */
-
-	write_reg(info, CMD, TXRESET);
-
-	info->ie1_value &= ~(UDRN + IDLE);
-	write_reg(info, IE1, info->ie1_value);	/* disable tx status interrupts */
-	write_reg(info, SR1, (unsigned char)(IDLE + UDRN));	/* clear pending */
-
-	info->ie0_value &= ~TXRDYE;
-	write_reg(info, IE0, info->ie0_value);	/* disable tx data interrupts */
-
-	info->tx_enabled = false;
-	info->tx_active = false;
-}
-
-/* Fill the transmit FIFO until the FIFO is full or
- * there is no more data to load.
- */
-static void tx_load_fifo(SLMP_INFO *info)
-{
-	u8 TwoBytes[2];
-
-	/* do nothing is now tx data available and no XON/XOFF pending */
-
-	if ( !info->tx_count && !info->x_char )
-		return;
-
-	/* load the Transmit FIFO until FIFOs full or all data sent */
-
-	while( info->tx_count && (read_reg(info,SR0) & BIT1) ) {
-
-		/* there is more space in the transmit FIFO and */
-		/* there is more data in transmit buffer */
-
-		if ( (info->tx_count > 1) && !info->x_char ) {
- 			/* write 16-bits */
-			TwoBytes[0] = info->tx_buf[info->tx_get++];
-			if (info->tx_get >= info->max_frame_size)
-				info->tx_get -= info->max_frame_size;
-			TwoBytes[1] = info->tx_buf[info->tx_get++];
-			if (info->tx_get >= info->max_frame_size)
-				info->tx_get -= info->max_frame_size;
-
-			write_reg16(info, TRB, *((u16 *)TwoBytes));
-
-			info->tx_count -= 2;
-			info->icount.tx += 2;
-		} else {
-			/* only 1 byte left to transmit or 1 FIFO slot left */
-
-			if (info->x_char) {
-				/* transmit pending high priority char */
-				write_reg(info, TRB, info->x_char);
-				info->x_char = 0;
-			} else {
-				write_reg(info, TRB, info->tx_buf[info->tx_get++]);
-				if (info->tx_get >= info->max_frame_size)
-					info->tx_get -= info->max_frame_size;
-				info->tx_count--;
-			}
-			info->icount.tx++;
-		}
-	}
-}
-
-/* Reset a port to a known state
- */
-static void reset_port(SLMP_INFO *info)
-{
-	if (info->sca_base) {
-
-		tx_stop(info);
-		rx_stop(info);
-
-		info->serial_signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
-		set_signals(info);
-
-		/* disable all port interrupts */
-		info->ie0_value = 0;
-		info->ie1_value = 0;
-		info->ie2_value = 0;
-		write_reg(info, IE0, info->ie0_value);
-		write_reg(info, IE1, info->ie1_value);
-		write_reg(info, IE2, info->ie2_value);
-
-		write_reg(info, CMD, CHRESET);
-	}
-}
-
-/* Reset all the ports to a known state.
- */
-static void reset_adapter(SLMP_INFO *info)
-{
-	int i;
-
-	for ( i=0; i < SCA_MAX_PORTS; ++i) {
-		if (info->port_array[i])
-			reset_port(info->port_array[i]);
-	}
-}
-
-/* Program port for asynchronous communications.
- */
-static void async_mode(SLMP_INFO *info)
-{
-
-  	unsigned char RegValue;
-
-	tx_stop(info);
-	rx_stop(info);
-
-	/* MD0, Mode Register 0
-	 *
-	 * 07..05  PRCTL<2..0>, Protocol Mode, 000=async
-	 * 04      AUTO, Auto-enable (RTS/CTS/DCD)
-	 * 03      Reserved, must be 0
-	 * 02      CRCCC, CRC Calculation, 0=disabled
-	 * 01..00  STOP<1..0> Stop bits (00=1,10=2)
-	 *
-	 * 0000 0000
-	 */
-	RegValue = 0x00;
-	if (info->params.stop_bits != 1)
-		RegValue |= BIT1;
-	write_reg(info, MD0, RegValue);
-
-	/* MD1, Mode Register 1
-	 *
-	 * 07..06  BRATE<1..0>, bit rate, 00=1/1 01=1/16 10=1/32 11=1/64
-	 * 05..04  TXCHR<1..0>, tx char size, 00=8 bits,01=7,10=6,11=5
-	 * 03..02  RXCHR<1..0>, rx char size
-	 * 01..00  PMPM<1..0>, Parity mode, 00=none 10=even 11=odd
-	 *
-	 * 0100 0000
-	 */
-	RegValue = 0x40;
-	switch (info->params.data_bits) {
-	case 7: RegValue |= BIT4 + BIT2; break;
-	case 6: RegValue |= BIT5 + BIT3; break;
-	case 5: RegValue |= BIT5 + BIT4 + BIT3 + BIT2; break;
-	}
-	if (info->params.parity != ASYNC_PARITY_NONE) {
-		RegValue |= BIT1;
-		if (info->params.parity == ASYNC_PARITY_ODD)
-			RegValue |= BIT0;
-	}
-	write_reg(info, MD1, RegValue);
-
-	/* MD2, Mode Register 2
-	 *
-	 * 07..02  Reserved, must be 0
-	 * 01..00  CNCT<1..0> Channel connection, 00=normal 11=local loopback
-	 *
-	 * 0000 0000
-	 */
-	RegValue = 0x00;
-	if (info->params.loopback)
-		RegValue |= (BIT1 + BIT0);
-	write_reg(info, MD2, RegValue);
-
-	/* RXS, Receive clock source
-	 *
-	 * 07      Reserved, must be 0
-	 * 06..04  RXCS<2..0>, clock source, 000=RxC Pin, 100=BRG, 110=DPLL
-	 * 03..00  RXBR<3..0>, rate divisor, 0000=1
-	 */
-	RegValue=BIT6;
-	write_reg(info, RXS, RegValue);
-
-	/* TXS, Transmit clock source
-	 *
-	 * 07      Reserved, must be 0
-	 * 06..04  RXCS<2..0>, clock source, 000=TxC Pin, 100=BRG, 110=Receive Clock
-	 * 03..00  RXBR<3..0>, rate divisor, 0000=1
-	 */
-	RegValue=BIT6;
-	write_reg(info, TXS, RegValue);
-
-	/* Control Register
-	 *
-	 * 6,4,2,0  CLKSEL<3..0>, 0 = TcCLK in, 1 = Auxclk out
-	 */
-	info->port_array[0]->ctrlreg_value |= (BIT0 << (info->port_num * 2));
-	write_control_reg(info);
-
-	tx_set_idle(info);
-
-	/* RRC Receive Ready Control 0
-	 *
-	 * 07..05  Reserved, must be 0
-	 * 04..00  RRC<4..0> Rx FIFO trigger active 0x00 = 1 byte
-	 */
-	write_reg(info, RRC, 0x00);
-
-	/* TRC0 Transmit Ready Control 0
-	 *
-	 * 07..05  Reserved, must be 0
-	 * 04..00  TRC<4..0> Tx FIFO trigger active 0x10 = 16 bytes
-	 */
-	write_reg(info, TRC0, 0x10);
-
-	/* TRC1 Transmit Ready Control 1
-	 *
-	 * 07..05  Reserved, must be 0
-	 * 04..00  TRC<4..0> Tx FIFO trigger inactive 0x1e = 31 bytes (full-1)
-	 */
-	write_reg(info, TRC1, 0x1e);
-
-	/* CTL, MSCI control register
-	 *
-	 * 07..06  Reserved, set to 0
-	 * 05      UDRNC, underrun control, 0=abort 1=CRC+flag (HDLC/BSC)
-	 * 04      IDLC, idle control, 0=mark 1=idle register
-	 * 03      BRK, break, 0=off 1 =on (async)
-	 * 02      SYNCLD, sync char load enable (BSC) 1=enabled
-	 * 01      GOP, go active on poll (LOOP mode) 1=enabled
-	 * 00      RTS, RTS output control, 0=active 1=inactive
-	 *
-	 * 0001 0001
-	 */
-	RegValue = 0x10;
-	if (!(info->serial_signals & SerialSignal_RTS))
-		RegValue |= 0x01;
-	write_reg(info, CTL, RegValue);
-
-	/* enable status interrupts */
-	info->ie0_value |= TXINTE + RXINTE;
-	write_reg(info, IE0, info->ie0_value);
-
-	/* enable break detect interrupt */
-	info->ie1_value = BRKD;
-	write_reg(info, IE1, info->ie1_value);
-
-	/* enable rx overrun interrupt */
-	info->ie2_value = OVRN;
-	write_reg(info, IE2, info->ie2_value);
-
-	set_rate( info, info->params.data_rate * 16 );
-}
-
-/* Program the SCA for HDLC communications.
- */
-static void hdlc_mode(SLMP_INFO *info)
-{
-	unsigned char RegValue;
-	u32 DpllDivisor;
-
-	// Can't use DPLL because SCA outputs recovered clock on RxC when
-	// DPLL mode selected. This causes output contention with RxC receiver.
-	// Use of DPLL would require external hardware to disable RxC receiver
-	// when DPLL mode selected.
-	info->params.flags &= ~(HDLC_FLAG_TXC_DPLL + HDLC_FLAG_RXC_DPLL);
-
-	/* disable DMA interrupts */
-	write_reg(info, TXDMA + DIR, 0);
-	write_reg(info, RXDMA + DIR, 0);
-
-	/* MD0, Mode Register 0
-	 *
-	 * 07..05  PRCTL<2..0>, Protocol Mode, 100=HDLC
-	 * 04      AUTO, Auto-enable (RTS/CTS/DCD)
-	 * 03      Reserved, must be 0
-	 * 02      CRCCC, CRC Calculation, 1=enabled
-	 * 01      CRC1, CRC selection, 0=CRC-16,1=CRC-CCITT-16
-	 * 00      CRC0, CRC initial value, 1 = all 1s
-	 *
-	 * 1000 0001
-	 */
-	RegValue = 0x81;
-	if (info->params.flags & HDLC_FLAG_AUTO_CTS)
-		RegValue |= BIT4;
-	if (info->params.flags & HDLC_FLAG_AUTO_DCD)
-		RegValue |= BIT4;
-	if (info->params.crc_type == HDLC_CRC_16_CCITT)
-		RegValue |= BIT2 + BIT1;
-	write_reg(info, MD0, RegValue);
-
-	/* MD1, Mode Register 1
-	 *
-	 * 07..06  ADDRS<1..0>, Address detect, 00=no addr check
-	 * 05..04  TXCHR<1..0>, tx char size, 00=8 bits
-	 * 03..02  RXCHR<1..0>, rx char size, 00=8 bits
-	 * 01..00  PMPM<1..0>, Parity mode, 00=no parity
-	 *
-	 * 0000 0000
-	 */
-	RegValue = 0x00;
-	write_reg(info, MD1, RegValue);
-
-	/* MD2, Mode Register 2
-	 *
-	 * 07      NRZFM, 0=NRZ, 1=FM
-	 * 06..05  CODE<1..0> Encoding, 00=NRZ
-	 * 04..03  DRATE<1..0> DPLL Divisor, 00=8
-	 * 02      Reserved, must be 0
-	 * 01..00  CNCT<1..0> Channel connection, 0=normal
-	 *
-	 * 0000 0000
-	 */
-	RegValue = 0x00;
-	switch(info->params.encoding) {
-	case HDLC_ENCODING_NRZI:	  RegValue |= BIT5; break;
-	case HDLC_ENCODING_BIPHASE_MARK:  RegValue |= BIT7 + BIT5; break; /* aka FM1 */
-	case HDLC_ENCODING_BIPHASE_SPACE: RegValue |= BIT7 + BIT6; break; /* aka FM0 */
-	case HDLC_ENCODING_BIPHASE_LEVEL: RegValue |= BIT7; break; 	/* aka Manchester */
-#if 0
-	case HDLC_ENCODING_NRZB:	       				/* not supported */
-	case HDLC_ENCODING_NRZI_MARK:          				/* not supported */
-	case HDLC_ENCODING_DIFF_BIPHASE_LEVEL: 				/* not supported */
-#endif
-	}
-	if ( info->params.flags & HDLC_FLAG_DPLL_DIV16 ) {
-		DpllDivisor = 16;
-		RegValue |= BIT3;
-	} else if ( info->params.flags & HDLC_FLAG_DPLL_DIV8 ) {
-		DpllDivisor = 8;
-	} else {
-		DpllDivisor = 32;
-		RegValue |= BIT4;
-	}
-	write_reg(info, MD2, RegValue);
-
-
-	/* RXS, Receive clock source
-	 *
-	 * 07      Reserved, must be 0
-	 * 06..04  RXCS<2..0>, clock source, 000=RxC Pin, 100=BRG, 110=DPLL
-	 * 03..00  RXBR<3..0>, rate divisor, 0000=1
-	 */
-	RegValue=0;
-	if (info->params.flags & HDLC_FLAG_RXC_BRG)
-		RegValue |= BIT6;
-	if (info->params.flags & HDLC_FLAG_RXC_DPLL)
-		RegValue |= BIT6 + BIT5;
-	write_reg(info, RXS, RegValue);
-
-	/* TXS, Transmit clock source
-	 *
-	 * 07      Reserved, must be 0
-	 * 06..04  RXCS<2..0>, clock source, 000=TxC Pin, 100=BRG, 110=Receive Clock
-	 * 03..00  RXBR<3..0>, rate divisor, 0000=1
-	 */
-	RegValue=0;
-	if (info->params.flags & HDLC_FLAG_TXC_BRG)
-		RegValue |= BIT6;
-	if (info->params.flags & HDLC_FLAG_TXC_DPLL)
-		RegValue |= BIT6 + BIT5;
-	write_reg(info, TXS, RegValue);
-
-	if (info->params.flags & HDLC_FLAG_RXC_DPLL)
-		set_rate(info, info->params.clock_speed * DpllDivisor);
-	else
-		set_rate(info, info->params.clock_speed);
-
-	/* GPDATA (General Purpose I/O Data Register)
-	 *
-	 * 6,4,2,0  CLKSEL<3..0>, 0 = TcCLK in, 1 = Auxclk out
-	 */
-	if (info->params.flags & HDLC_FLAG_TXC_BRG)
-		info->port_array[0]->ctrlreg_value |= (BIT0 << (info->port_num * 2));
-	else
-		info->port_array[0]->ctrlreg_value &= ~(BIT0 << (info->port_num * 2));
-	write_control_reg(info);
-
-	/* RRC Receive Ready Control 0
-	 *
-	 * 07..05  Reserved, must be 0
-	 * 04..00  RRC<4..0> Rx FIFO trigger active
-	 */
-	write_reg(info, RRC, rx_active_fifo_level);
-
-	/* TRC0 Transmit Ready Control 0
-	 *
-	 * 07..05  Reserved, must be 0
-	 * 04..00  TRC<4..0> Tx FIFO trigger active
-	 */
-	write_reg(info, TRC0, tx_active_fifo_level);
-
-	/* TRC1 Transmit Ready Control 1
-	 *
-	 * 07..05  Reserved, must be 0
-	 * 04..00  TRC<4..0> Tx FIFO trigger inactive 0x1f = 32 bytes (full)
-	 */
-	write_reg(info, TRC1, (unsigned char)(tx_negate_fifo_level - 1));
-
-	/* DMR, DMA Mode Register
-	 *
-	 * 07..05  Reserved, must be 0
-	 * 04      TMOD, Transfer Mode: 1=chained-block
-	 * 03      Reserved, must be 0
-	 * 02      NF, Number of Frames: 1=multi-frame
-	 * 01      CNTE, Frame End IRQ Counter enable: 0=disabled
-	 * 00      Reserved, must be 0
-	 *
-	 * 0001 0100
-	 */
-	write_reg(info, TXDMA + DMR, 0x14);
-	write_reg(info, RXDMA + DMR, 0x14);
-
-	/* Set chain pointer base (upper 8 bits of 24 bit addr) */
-	write_reg(info, RXDMA + CPB,
-		(unsigned char)(info->buffer_list_phys >> 16));
-
-	/* Set chain pointer base (upper 8 bits of 24 bit addr) */
-	write_reg(info, TXDMA + CPB,
-		(unsigned char)(info->buffer_list_phys >> 16));
-
-	/* enable status interrupts. other code enables/disables
-	 * the individual sources for these two interrupt classes.
-	 */
-	info->ie0_value |= TXINTE + RXINTE;
-	write_reg(info, IE0, info->ie0_value);
-
-	/* CTL, MSCI control register
-	 *
-	 * 07..06  Reserved, set to 0
-	 * 05      UDRNC, underrun control, 0=abort 1=CRC+flag (HDLC/BSC)
-	 * 04      IDLC, idle control, 0=mark 1=idle register
-	 * 03      BRK, break, 0=off 1 =on (async)
-	 * 02      SYNCLD, sync char load enable (BSC) 1=enabled
-	 * 01      GOP, go active on poll (LOOP mode) 1=enabled
-	 * 00      RTS, RTS output control, 0=active 1=inactive
-	 *
-	 * 0001 0001
-	 */
-	RegValue = 0x10;
-	if (!(info->serial_signals & SerialSignal_RTS))
-		RegValue |= 0x01;
-	write_reg(info, CTL, RegValue);
-
-	/* preamble not supported ! */
-
-	tx_set_idle(info);
-	tx_stop(info);
-	rx_stop(info);
-
-	set_rate(info, info->params.clock_speed);
-
-	if (info->params.loopback)
-		enable_loopback(info,1);
-}
-
-/* Set the transmit HDLC idle mode
- */
-static void tx_set_idle(SLMP_INFO *info)
-{
-	unsigned char RegValue = 0xff;
-
-	/* Map API idle mode to SCA register bits */
-	switch(info->idle_mode) {
-	case HDLC_TXIDLE_FLAGS:			RegValue = 0x7e; break;
-	case HDLC_TXIDLE_ALT_ZEROS_ONES:	RegValue = 0xaa; break;
-	case HDLC_TXIDLE_ZEROS:			RegValue = 0x00; break;
-	case HDLC_TXIDLE_ONES:			RegValue = 0xff; break;
-	case HDLC_TXIDLE_ALT_MARK_SPACE:	RegValue = 0xaa; break;
-	case HDLC_TXIDLE_SPACE:			RegValue = 0x00; break;
-	case HDLC_TXIDLE_MARK:			RegValue = 0xff; break;
-	}
-
-	write_reg(info, IDL, RegValue);
-}
-
-/* Query the adapter for the state of the V24 status (input) signals.
- */
-static void get_signals(SLMP_INFO *info)
-{
-	u16 status = read_reg(info, SR3);
-	u16 gpstatus = read_status_reg(info);
-	u16 testbit;
-
-	/* clear all serial signals except DTR and RTS */
-	info->serial_signals &= SerialSignal_DTR + SerialSignal_RTS;
-
-	/* set serial signal bits to reflect MISR */
-
-	if (!(status & BIT3))
-		info->serial_signals |= SerialSignal_CTS;
-
-	if ( !(status & BIT2))
-		info->serial_signals |= SerialSignal_DCD;
-
-	testbit = BIT1 << (info->port_num * 2); // Port 0..3 RI is GPDATA<1,3,5,7>
-	if (!(gpstatus & testbit))
-		info->serial_signals |= SerialSignal_RI;
-
-	testbit = BIT0 << (info->port_num * 2); // Port 0..3 DSR is GPDATA<0,2,4,6>
-	if (!(gpstatus & testbit))
-		info->serial_signals |= SerialSignal_DSR;
-}
-
-/* Set the state of DTR and RTS based on contents of
- * serial_signals member of device context.
- */
-static void set_signals(SLMP_INFO *info)
-{
-	unsigned char RegValue;
-	u16 EnableBit;
-
-	RegValue = read_reg(info, CTL);
-	if (info->serial_signals & SerialSignal_RTS)
-		RegValue &= ~BIT0;
-	else
-		RegValue |= BIT0;
-	write_reg(info, CTL, RegValue);
-
-	// Port 0..3 DTR is ctrl reg <1,3,5,7>
-	EnableBit = BIT1 << (info->port_num*2);
-	if (info->serial_signals & SerialSignal_DTR)
-		info->port_array[0]->ctrlreg_value &= ~EnableBit;
-	else
-		info->port_array[0]->ctrlreg_value |= EnableBit;
-	write_control_reg(info);
-}
-
-/*******************/
-/* DMA Buffer Code */
-/*******************/
-
-/* Set the count for all receive buffers to SCABUFSIZE
- * and set the current buffer to the first buffer. This effectively
- * makes all buffers free and discards any data in buffers.
- */
-static void rx_reset_buffers(SLMP_INFO *info)
-{
-	rx_free_frame_buffers(info, 0, info->rx_buf_count - 1);
-}
-
-/* Free the buffers used by a received frame
- *
- * info   pointer to device instance data
- * first  index of 1st receive buffer of frame
- * last   index of last receive buffer of frame
- */
-static void rx_free_frame_buffers(SLMP_INFO *info, unsigned int first, unsigned int last)
-{
-	bool done = false;
-
-	while(!done) {
-	        /* reset current buffer for reuse */
-		info->rx_buf_list[first].status = 0xff;
-
-	        if (first == last) {
-	                done = true;
-	                /* set new last rx descriptor address */
-			write_reg16(info, RXDMA + EDA, info->rx_buf_list_ex[first].phys_entry);
-	        }
-
-	        first++;
-		if (first == info->rx_buf_count)
-			first = 0;
-	}
-
-	/* set current buffer to next buffer after last buffer of frame */
-	info->current_rx_buf = first;
-}
-
-/* Return a received frame from the receive DMA buffers.
- * Only frames received without errors are returned.
- *
- * Return Value:	true if frame returned, otherwise false
- */
-static bool rx_get_frame(SLMP_INFO *info)
-{
-	unsigned int StartIndex, EndIndex;	/* index of 1st and last buffers of Rx frame */
-	unsigned short status;
-	unsigned int framesize = 0;
-	bool ReturnCode = false;
-	unsigned long flags;
-	struct tty_struct *tty = info->port.tty;
-	unsigned char addr_field = 0xff;
-   	SCADESC *desc;
-	SCADESC_EX *desc_ex;
-
-CheckAgain:
-	/* assume no frame returned, set zero length */
-	framesize = 0;
-	addr_field = 0xff;
-
-	/*
-	 * current_rx_buf points to the 1st buffer of the next available
-	 * receive frame. To find the last buffer of the frame look for
-	 * a non-zero status field in the buffer entries. (The status
-	 * field is set by the 16C32 after completing a receive frame.
-	 */
-	StartIndex = EndIndex = info->current_rx_buf;
-
-	for ( ;; ) {
-		desc = &info->rx_buf_list[EndIndex];
-		desc_ex = &info->rx_buf_list_ex[EndIndex];
-
-		if (desc->status == 0xff)
-			goto Cleanup;	/* current desc still in use, no frames available */
-
-		if (framesize == 0 && info->params.addr_filter != 0xff)
-			addr_field = desc_ex->virt_addr[0];
-
-		framesize += desc->length;
-
-		/* Status != 0 means last buffer of frame */
-		if (desc->status)
-			break;
-
-		EndIndex++;
-		if (EndIndex == info->rx_buf_count)
-			EndIndex = 0;
-
-		if (EndIndex == info->current_rx_buf) {
-			/* all buffers have been 'used' but none mark	   */
-			/* the end of a frame. Reset buffers and receiver. */
-			if ( info->rx_enabled ){
-				spin_lock_irqsave(&info->lock,flags);
-				rx_start(info);
-				spin_unlock_irqrestore(&info->lock,flags);
-			}
-			goto Cleanup;
-		}
-
-	}
-
-	/* check status of receive frame */
-
-	/* frame status is byte stored after frame data
-	 *
-	 * 7 EOM (end of msg), 1 = last buffer of frame
-	 * 6 Short Frame, 1 = short frame
-	 * 5 Abort, 1 = frame aborted
-	 * 4 Residue, 1 = last byte is partial
-	 * 3 Overrun, 1 = overrun occurred during frame reception
-	 * 2 CRC,     1 = CRC error detected
-	 *
-	 */
-	status = desc->status;
-
-	/* ignore CRC bit if not using CRC (bit is undefined) */
-	/* Note:CRC is not save to data buffer */
-	if (info->params.crc_type == HDLC_CRC_NONE)
-		status &= ~BIT2;
-
-	if (framesize == 0 ||
-		 (addr_field != 0xff && addr_field != info->params.addr_filter)) {
-		/* discard 0 byte frames, this seems to occur sometime
-		 * when remote is idling flags.
-		 */
-		rx_free_frame_buffers(info, StartIndex, EndIndex);
-		goto CheckAgain;
-	}
-
-	if (framesize < 2)
-		status |= BIT6;
-
-	if (status & (BIT6+BIT5+BIT3+BIT2)) {
-		/* received frame has errors,
-		 * update counts and mark frame size as 0
-		 */
-		if (status & BIT6)
-			info->icount.rxshort++;
-		else if (status & BIT5)
-			info->icount.rxabort++;
-		else if (status & BIT3)
-			info->icount.rxover++;
-		else
-			info->icount.rxcrc++;
-
-		framesize = 0;
-#if SYNCLINK_GENERIC_HDLC
-		{
-			info->netdev->stats.rx_errors++;
-			info->netdev->stats.rx_frame_errors++;
-		}
-#endif
-	}
-
-	if ( debug_level >= DEBUG_LEVEL_BH )
-		printk("%s(%d):%s rx_get_frame() status=%04X size=%d\n",
-			__FILE__,__LINE__,info->device_name,status,framesize);
-
-	if ( debug_level >= DEBUG_LEVEL_DATA )
-		trace_block(info,info->rx_buf_list_ex[StartIndex].virt_addr,
-			min_t(int, framesize,SCABUFSIZE),0);
-
-	if (framesize) {
-		if (framesize > info->max_frame_size)
-			info->icount.rxlong++;
-		else {
-			/* copy dma buffer(s) to contiguous intermediate buffer */
-			int copy_count = framesize;
-			int index = StartIndex;
-			unsigned char *ptmp = info->tmp_rx_buf;
-			info->tmp_rx_buf_count = framesize;
-
-			info->icount.rxok++;
-
-			while(copy_count) {
-				int partial_count = min(copy_count,SCABUFSIZE);
-				memcpy( ptmp,
-					info->rx_buf_list_ex[index].virt_addr,
-					partial_count );
-				ptmp += partial_count;
-				copy_count -= partial_count;
-
-				if ( ++index == info->rx_buf_count )
-					index = 0;
-			}
-
-#if SYNCLINK_GENERIC_HDLC
-			if (info->netcount)
-				hdlcdev_rx(info,info->tmp_rx_buf,framesize);
-			else
-#endif
-				ldisc_receive_buf(tty,info->tmp_rx_buf,
-						  info->flag_buf, framesize);
-		}
-	}
-	/* Free the buffers used by this frame. */
-	rx_free_frame_buffers( info, StartIndex, EndIndex );
-
-	ReturnCode = true;
-
-Cleanup:
-	if ( info->rx_enabled && info->rx_overflow ) {
-		/* Receiver is enabled, but needs to restarted due to
-		 * rx buffer overflow. If buffers are empty, restart receiver.
-		 */
-		if (info->rx_buf_list[EndIndex].status == 0xff) {
-			spin_lock_irqsave(&info->lock,flags);
-			rx_start(info);
-			spin_unlock_irqrestore(&info->lock,flags);
-		}
-	}
-
-	return ReturnCode;
-}
-
-/* load the transmit DMA buffer with data
- */
-static void tx_load_dma_buffer(SLMP_INFO *info, const char *buf, unsigned int count)
-{
-	unsigned short copy_count;
-	unsigned int i = 0;
-	SCADESC *desc;
-	SCADESC_EX *desc_ex;
-
-	if ( debug_level >= DEBUG_LEVEL_DATA )
-		trace_block(info,buf, min_t(int, count,SCABUFSIZE), 1);
-
-	/* Copy source buffer to one or more DMA buffers, starting with
-	 * the first transmit dma buffer.
-	 */
-	for(i=0;;)
-	{
-		copy_count = min_t(unsigned short,count,SCABUFSIZE);
-
-		desc = &info->tx_buf_list[i];
-		desc_ex = &info->tx_buf_list_ex[i];
-
-		load_pci_memory(info, desc_ex->virt_addr,buf,copy_count);
-
-		desc->length = copy_count;
-		desc->status = 0;
-
-		buf += copy_count;
-		count -= copy_count;
-
-		if (!count)
-			break;
-
-		i++;
-		if (i >= info->tx_buf_count)
-			i = 0;
-	}
-
-	info->tx_buf_list[i].status = 0x81;	/* set EOM and EOT status */
-	info->last_tx_buf = ++i;
-}
-
-static bool register_test(SLMP_INFO *info)
-{
-	static unsigned char testval[] = {0x00, 0xff, 0xaa, 0x55, 0x69, 0x96};
-	static unsigned int count = ARRAY_SIZE(testval);
-	unsigned int i;
-	bool rc = true;
-	unsigned long flags;
-
-	spin_lock_irqsave(&info->lock,flags);
-	reset_port(info);
-
-	/* assume failure */
-	info->init_error = DiagStatus_AddressFailure;
-
-	/* Write bit patterns to various registers but do it out of */
-	/* sync, then read back and verify values. */
-
-	for (i = 0 ; i < count ; i++) {
-		write_reg(info, TMC, testval[i]);
-		write_reg(info, IDL, testval[(i+1)%count]);
-		write_reg(info, SA0, testval[(i+2)%count]);
-		write_reg(info, SA1, testval[(i+3)%count]);
-
-		if ( (read_reg(info, TMC) != testval[i]) ||
-			  (read_reg(info, IDL) != testval[(i+1)%count]) ||
-			  (read_reg(info, SA0) != testval[(i+2)%count]) ||
-			  (read_reg(info, SA1) != testval[(i+3)%count]) )
-		{
-			rc = false;
-			break;
-		}
-	}
-
-	reset_port(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	return rc;
-}
-
-static bool irq_test(SLMP_INFO *info)
-{
-	unsigned long timeout;
-	unsigned long flags;
-
-	unsigned char timer = (info->port_num & 1) ? TIMER2 : TIMER0;
-
-	spin_lock_irqsave(&info->lock,flags);
-	reset_port(info);
-
-	/* assume failure */
-	info->init_error = DiagStatus_IrqFailure;
-	info->irq_occurred = false;
-
-	/* setup timer0 on SCA0 to interrupt */
-
-	/* IER2<7..4> = timer<3..0> interrupt enables (1=enabled) */
-	write_reg(info, IER2, (unsigned char)((info->port_num & 1) ? BIT6 : BIT4));
-
-	write_reg(info, (unsigned char)(timer + TEPR), 0);	/* timer expand prescale */
-	write_reg16(info, (unsigned char)(timer + TCONR), 1);	/* timer constant */
-
-
-	/* TMCS, Timer Control/Status Register
-	 *
-	 * 07      CMF, Compare match flag (read only) 1=match
-	 * 06      ECMI, CMF Interrupt Enable: 1=enabled
-	 * 05      Reserved, must be 0
-	 * 04      TME, Timer Enable
-	 * 03..00  Reserved, must be 0
-	 *
-	 * 0101 0000
-	 */
-	write_reg(info, (unsigned char)(timer + TMCS), 0x50);
-
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	timeout=100;
-	while( timeout-- && !info->irq_occurred ) {
-		msleep_interruptible(10);
-	}
-
-	spin_lock_irqsave(&info->lock,flags);
-	reset_port(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	return info->irq_occurred;
-}
-
-/* initialize individual SCA device (2 ports)
- */
-static bool sca_init(SLMP_INFO *info)
-{
-	/* set wait controller to single mem partition (low), no wait states */
-	write_reg(info, PABR0, 0);	/* wait controller addr boundary 0 */
-	write_reg(info, PABR1, 0);	/* wait controller addr boundary 1 */
-	write_reg(info, WCRL, 0);	/* wait controller low range */
-	write_reg(info, WCRM, 0);	/* wait controller mid range */
-	write_reg(info, WCRH, 0);	/* wait controller high range */
-
-	/* DPCR, DMA Priority Control
-	 *
-	 * 07..05  Not used, must be 0
-	 * 04      BRC, bus release condition: 0=all transfers complete
-	 * 03      CCC, channel change condition: 0=every cycle
-	 * 02..00  PR<2..0>, priority 100=round robin
-	 *
-	 * 00000100 = 0x04
-	 */
-	write_reg(info, DPCR, dma_priority);
-
-	/* DMA Master Enable, BIT7: 1=enable all channels */
-	write_reg(info, DMER, 0x80);
-
-	/* enable all interrupt classes */
-	write_reg(info, IER0, 0xff);	/* TxRDY,RxRDY,TxINT,RxINT (ports 0-1) */
-	write_reg(info, IER1, 0xff);	/* DMIB,DMIA (channels 0-3) */
-	write_reg(info, IER2, 0xf0);	/* TIRQ (timers 0-3) */
-
-	/* ITCR, interrupt control register
-	 * 07      IPC, interrupt priority, 0=MSCI->DMA
-	 * 06..05  IAK<1..0>, Acknowledge cycle, 00=non-ack cycle
-	 * 04      VOS, Vector Output, 0=unmodified vector
-	 * 03..00  Reserved, must be 0
-	 */
-	write_reg(info, ITCR, 0);
-
-	return true;
-}
-
-/* initialize adapter hardware
- */
-static bool init_adapter(SLMP_INFO *info)
-{
-	int i;
-
-	/* Set BIT30 of Local Control Reg 0x50 to reset SCA */
-	volatile u32 *MiscCtrl = (u32 *)(info->lcr_base + 0x50);
-	u32 readval;
-
-	info->misc_ctrl_value |= BIT30;
-	*MiscCtrl = info->misc_ctrl_value;
-
-	/*
-	 * Force at least 170ns delay before clearing
-	 * reset bit. Each read from LCR takes at least
-	 * 30ns so 10 times for 300ns to be safe.
-	 */
-	for(i=0;i<10;i++)
-		readval = *MiscCtrl;
-
-	info->misc_ctrl_value &= ~BIT30;
-	*MiscCtrl = info->misc_ctrl_value;
-
-	/* init control reg (all DTRs off, all clksel=input) */
-	info->ctrlreg_value = 0xaa;
-	write_control_reg(info);
-
-	{
-		volatile u32 *LCR1BRDR = (u32 *)(info->lcr_base + 0x2c);
-		lcr1_brdr_value &= ~(BIT5 + BIT4 + BIT3);
-
-		switch(read_ahead_count)
-		{
-		case 16:
-			lcr1_brdr_value |= BIT5 + BIT4 + BIT3;
-			break;
-		case 8:
-			lcr1_brdr_value |= BIT5 + BIT4;
-			break;
-		case 4:
-			lcr1_brdr_value |= BIT5 + BIT3;
-			break;
-		case 0:
-			lcr1_brdr_value |= BIT5;
-			break;
-		}
-
-		*LCR1BRDR = lcr1_brdr_value;
-		*MiscCtrl = misc_ctrl_value;
-	}
-
-	sca_init(info->port_array[0]);
-	sca_init(info->port_array[2]);
-
-	return true;
-}
-
-/* Loopback an HDLC frame to test the hardware
- * interrupt and DMA functions.
- */
-static bool loopback_test(SLMP_INFO *info)
-{
-#define TESTFRAMESIZE 20
-
-	unsigned long timeout;
-	u16 count = TESTFRAMESIZE;
-	unsigned char buf[TESTFRAMESIZE];
-	bool rc = false;
-	unsigned long flags;
-
-	struct tty_struct *oldtty = info->port.tty;
-	u32 speed = info->params.clock_speed;
-
-	info->params.clock_speed = 3686400;
-	info->port.tty = NULL;
-
-	/* assume failure */
-	info->init_error = DiagStatus_DmaFailure;
-
-	/* build and send transmit frame */
-	for (count = 0; count < TESTFRAMESIZE;++count)
-		buf[count] = (unsigned char)count;
-
-	memset(info->tmp_rx_buf,0,TESTFRAMESIZE);
-
-	/* program hardware for HDLC and enabled receiver */
-	spin_lock_irqsave(&info->lock,flags);
-	hdlc_mode(info);
-	enable_loopback(info,1);
-       	rx_start(info);
-	info->tx_count = count;
-	tx_load_dma_buffer(info,buf,count);
-	tx_start(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	/* wait for receive complete */
-	/* Set a timeout for waiting for interrupt. */
-	for ( timeout = 100; timeout; --timeout ) {
-		msleep_interruptible(10);
-
-		if (rx_get_frame(info)) {
-			rc = true;
-			break;
-		}
-	}
-
-	/* verify received frame length and contents */
-	if (rc &&
-	    ( info->tmp_rx_buf_count != count ||
-	      memcmp(buf, info->tmp_rx_buf,count))) {
-		rc = false;
-	}
-
-	spin_lock_irqsave(&info->lock,flags);
-	reset_adapter(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	info->params.clock_speed = speed;
-	info->port.tty = oldtty;
-
-	return rc;
-}
-
-/* Perform diagnostics on hardware
- */
-static int adapter_test( SLMP_INFO *info )
-{
-	unsigned long flags;
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk( "%s(%d):Testing device %s\n",
-			__FILE__,__LINE__,info->device_name );
-
-	spin_lock_irqsave(&info->lock,flags);
-	init_adapter(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	info->port_array[0]->port_count = 0;
-
-	if ( register_test(info->port_array[0]) &&
-		register_test(info->port_array[1])) {
-
-		info->port_array[0]->port_count = 2;
-
-		if ( register_test(info->port_array[2]) &&
-			register_test(info->port_array[3]) )
-			info->port_array[0]->port_count += 2;
-	}
-	else {
-		printk( "%s(%d):Register test failure for device %s Addr=%08lX\n",
-			__FILE__,__LINE__,info->device_name, (unsigned long)(info->phys_sca_base));
-		return -ENODEV;
-	}
-
-	if ( !irq_test(info->port_array[0]) ||
-		!irq_test(info->port_array[1]) ||
-		 (info->port_count == 4 && !irq_test(info->port_array[2])) ||
-		 (info->port_count == 4 && !irq_test(info->port_array[3]))) {
-		printk( "%s(%d):Interrupt test failure for device %s IRQ=%d\n",
-			__FILE__,__LINE__,info->device_name, (unsigned short)(info->irq_level) );
-		return -ENODEV;
-	}
-
-	if (!loopback_test(info->port_array[0]) ||
-		!loopback_test(info->port_array[1]) ||
-		 (info->port_count == 4 && !loopback_test(info->port_array[2])) ||
-		 (info->port_count == 4 && !loopback_test(info->port_array[3]))) {
-		printk( "%s(%d):DMA test failure for device %s\n",
-			__FILE__,__LINE__,info->device_name);
-		return -ENODEV;
-	}
-
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk( "%s(%d):device %s passed diagnostics\n",
-			__FILE__,__LINE__,info->device_name );
-
-	info->port_array[0]->init_error = 0;
-	info->port_array[1]->init_error = 0;
-	if ( info->port_count > 2 ) {
-		info->port_array[2]->init_error = 0;
-		info->port_array[3]->init_error = 0;
-	}
-
-	return 0;
-}
-
-/* Test the shared memory on a PCI adapter.
- */
-static bool memory_test(SLMP_INFO *info)
-{
-	static unsigned long testval[] = { 0x0, 0x55555555, 0xaaaaaaaa,
-		0x66666666, 0x99999999, 0xffffffff, 0x12345678 };
-	unsigned long count = ARRAY_SIZE(testval);
-	unsigned long i;
-	unsigned long limit = SCA_MEM_SIZE/sizeof(unsigned long);
-	unsigned long * addr = (unsigned long *)info->memory_base;
-
-	/* Test data lines with test pattern at one location. */
-
-	for ( i = 0 ; i < count ; i++ ) {
-		*addr = testval[i];
-		if ( *addr != testval[i] )
-			return false;
-	}
-
-	/* Test address lines with incrementing pattern over */
-	/* entire address range. */
-
-	for ( i = 0 ; i < limit ; i++ ) {
-		*addr = i * 4;
-		addr++;
-	}
-
-	addr = (unsigned long *)info->memory_base;
-
-	for ( i = 0 ; i < limit ; i++ ) {
-		if ( *addr != i * 4 )
-			return false;
-		addr++;
-	}
-
-	memset( info->memory_base, 0, SCA_MEM_SIZE );
-	return true;
-}
-
-/* Load data into PCI adapter shared memory.
- *
- * The PCI9050 releases control of the local bus
- * after completing the current read or write operation.
- *
- * While the PCI9050 write FIFO not empty, the
- * PCI9050 treats all of the writes as a single transaction
- * and does not release the bus. This causes DMA latency problems
- * at high speeds when copying large data blocks to the shared memory.
- *
- * This function breaks a write into multiple transations by
- * interleaving a read which flushes the write FIFO and 'completes'
- * the write transation. This allows any pending DMA request to gain control
- * of the local bus in a timely fasion.
- */
-static void load_pci_memory(SLMP_INFO *info, char* dest, const char* src, unsigned short count)
-{
-	/* A load interval of 16 allows for 4 32-bit writes at */
-	/* 136ns each for a maximum latency of 542ns on the local bus.*/
-
-	unsigned short interval = count / sca_pci_load_interval;
-	unsigned short i;
-
-	for ( i = 0 ; i < interval ; i++ )
-	{
-		memcpy(dest, src, sca_pci_load_interval);
-		read_status_reg(info);
-		dest += sca_pci_load_interval;
-		src += sca_pci_load_interval;
-	}
-
-	memcpy(dest, src, count % sca_pci_load_interval);
-}
-
-static void trace_block(SLMP_INFO *info,const char* data, int count, int xmit)
-{
-	int i;
-	int linecount;
-	if (xmit)
-		printk("%s tx data:\n",info->device_name);
-	else
-		printk("%s rx data:\n",info->device_name);
-
-	while(count) {
-		if (count > 16)
-			linecount = 16;
-		else
-			linecount = count;
-
-		for(i=0;i<linecount;i++)
-			printk("%02X ",(unsigned char)data[i]);
-		for(;i<17;i++)
-			printk("   ");
-		for(i=0;i<linecount;i++) {
-			if (data[i]>=040 && data[i]<=0176)
-				printk("%c",data[i]);
-			else
-				printk(".");
-		}
-		printk("\n");
-
-		data  += linecount;
-		count -= linecount;
-	}
-}	/* end of trace_block() */
-
-/* called when HDLC frame times out
- * update stats and do tx completion processing
- */
-static void tx_timeout(unsigned long context)
-{
-	SLMP_INFO *info = (SLMP_INFO*)context;
-	unsigned long flags;
-
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk( "%s(%d):%s tx_timeout()\n",
-			__FILE__,__LINE__,info->device_name);
-	if(info->tx_active && info->params.mode == MGSL_MODE_HDLC) {
-		info->icount.txtimeout++;
-	}
-	spin_lock_irqsave(&info->lock,flags);
-	info->tx_active = false;
-	info->tx_count = info->tx_put = info->tx_get = 0;
-
-	spin_unlock_irqrestore(&info->lock,flags);
-
-#if SYNCLINK_GENERIC_HDLC
-	if (info->netcount)
-		hdlcdev_tx_done(info);
-	else
-#endif
-		bh_transmit(info);
-}
-
-/* called to periodically check the DSR/RI modem signal input status
- */
-static void status_timeout(unsigned long context)
-{
-	u16 status = 0;
-	SLMP_INFO *info = (SLMP_INFO*)context;
-	unsigned long flags;
-	unsigned char delta;
-
-
-	spin_lock_irqsave(&info->lock,flags);
-	get_signals(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	/* check for DSR/RI state change */
-
-	delta = info->old_signals ^ info->serial_signals;
-	info->old_signals = info->serial_signals;
-
-	if (delta & SerialSignal_DSR)
-		status |= MISCSTATUS_DSR_LATCHED|(info->serial_signals&SerialSignal_DSR);
-
-	if (delta & SerialSignal_RI)
-		status |= MISCSTATUS_RI_LATCHED|(info->serial_signals&SerialSignal_RI);
-
-	if (delta & SerialSignal_DCD)
-		status |= MISCSTATUS_DCD_LATCHED|(info->serial_signals&SerialSignal_DCD);
-
-	if (delta & SerialSignal_CTS)
-		status |= MISCSTATUS_CTS_LATCHED|(info->serial_signals&SerialSignal_CTS);
-
-	if (status)
-		isr_io_pin(info,status);
-
-	mod_timer(&info->status_timer, jiffies + msecs_to_jiffies(10));
-}
-
-
-/* Register Access Routines -
- * All registers are memory mapped
- */
-#define CALC_REGADDR() \
-	unsigned char * RegAddr = (unsigned char*)(info->sca_base + Addr); \
-	if (info->port_num > 1) \
-		RegAddr += 256;	    		/* port 0-1 SCA0, 2-3 SCA1 */ \
-	if ( info->port_num & 1) { \
-		if (Addr > 0x7f) \
-			RegAddr += 0x40;	/* DMA access */ \
-		else if (Addr > 0x1f && Addr < 0x60) \
-			RegAddr += 0x20;	/* MSCI access */ \
-	}
-
-
-static unsigned char read_reg(SLMP_INFO * info, unsigned char Addr)
-{
-	CALC_REGADDR();
-	return *RegAddr;
-}
-static void write_reg(SLMP_INFO * info, unsigned char Addr, unsigned char Value)
-{
-	CALC_REGADDR();
-	*RegAddr = Value;
-}
-
-static u16 read_reg16(SLMP_INFO * info, unsigned char Addr)
-{
-	CALC_REGADDR();
-	return *((u16 *)RegAddr);
-}
-
-static void write_reg16(SLMP_INFO * info, unsigned char Addr, u16 Value)
-{
-	CALC_REGADDR();
-	*((u16 *)RegAddr) = Value;
-}
-
-static unsigned char read_status_reg(SLMP_INFO * info)
-{
-	unsigned char *RegAddr = (unsigned char *)info->statctrl_base;
-	return *RegAddr;
-}
-
-static void write_control_reg(SLMP_INFO * info)
-{
-	unsigned char *RegAddr = (unsigned char *)info->statctrl_base;
-	*RegAddr = info->port_array[0]->ctrlreg_value;
-}
-
-
-static int __devinit synclinkmp_init_one (struct pci_dev *dev,
-					  const struct pci_device_id *ent)
-{
-	if (pci_enable_device(dev)) {
-		printk("error enabling pci device %p\n", dev);
-		return -EIO;
-	}
-	device_init( ++synclinkmp_adapter_count, dev );
-	return 0;
-}
-
-static void __devexit synclinkmp_remove_one (struct pci_dev *dev)
-{
-}
author	Greg Kroah-Hartman <gregkh@suse.de>	2011-02-22 16:14:56 -0800
committer	Greg Kroah-Hartman <gregkh@suse.de>	2011-02-22 16:14:56 -0800
commit	a6afd9f3e819de4795fcd356e5bfad446e4323f2 (patch)
tree	3402b3981867fd4057b4eb33583b6300ae93b9a6 /drivers/char
parent	44ed76b78e158d852f640d533b7acc08b91f2132 (diff)