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authorGreg Kroah-Hartman <gregkh@suse.de>2011-02-22 16:57:21 -0800
committerGreg Kroah-Hartman <gregkh@suse.de>2011-02-22 16:57:21 -0800
commit4a6514e6d096716fb7bedf238efaaca877e2a7e8 (patch)
treee3601ee168cca90307ac91e750a86d6ed04eab01 /drivers/char/riscom8.c
parent282361a046edd9d58a134f358a3f65a7cb8655d9 (diff)
tty: move obsolete and broken tty drivers to drivers/staging/tty/
As planned by Arnd Bergmann, this moves the following drivers to the drivers/staging/tty/ directory where they will be removed after 2.6.41 if no one steps up to claim them. epca epca ip2 istallion riscom8 serial167 specialix stallion 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>
Diffstat (limited to 'drivers/char/riscom8.c')
-rw-r--r--drivers/char/riscom8.c1560
1 files changed, 0 insertions, 1560 deletions
diff --git a/drivers/char/riscom8.c b/drivers/char/riscom8.c
deleted file mode 100644
index 602643a40b4b..000000000000
--- a/drivers/char/riscom8.c
+++ /dev/null
@@ -1,1560 +0,0 @@
-/*
- * linux/drivers/char/riscom.c -- RISCom/8 multiport serial driver.
- *
- * Copyright (C) 1994-1996 Dmitry Gorodchanin (pgmdsg@ibi.com)
- *
- * This code is loosely based on the Linux serial driver, written by
- * Linus Torvalds, Theodore T'so and others. The RISCom/8 card
- * programming info was obtained from various drivers for other OSes
- * (FreeBSD, ISC, etc), but no source code from those drivers were
- * directly included in this driver.
- *
- *
- * 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.
- *
- * Revision 1.1
- *
- * ChangeLog:
- * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 27-Jun-2001
- * - get rid of check_region and several cleanups
- */
-
-#include <linux/module.h>
-
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/errno.h>
-#include <linux/tty.h>
-#include <linux/mm.h>
-#include <linux/serial.h>
-#include <linux/fcntl.h>
-#include <linux/major.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/tty_flip.h>
-#include <linux/spinlock.h>
-#include <linux/device.h>
-
-#include <linux/uaccess.h>
-
-#include "riscom8.h"
-#include "riscom8_reg.h"
-
-/* Am I paranoid or not ? ;-) */
-#define RISCOM_PARANOIA_CHECK
-
-/*
- * Crazy InteliCom/8 boards sometimes have swapped CTS & DSR signals.
- * You can slightly speed up things by #undefing the following option,
- * if you are REALLY sure that your board is correct one.
- */
-
-#define RISCOM_BRAIN_DAMAGED_CTS
-
-/*
- * The following defines are mostly for testing purposes. But if you need
- * some nice reporting in your syslog, you can define them also.
- */
-#undef RC_REPORT_FIFO
-#undef RC_REPORT_OVERRUN
-
-
-#define RISCOM_LEGAL_FLAGS \
- (ASYNC_HUP_NOTIFY | ASYNC_SAK | ASYNC_SPLIT_TERMIOS | \
- ASYNC_SPD_HI | ASYNC_SPEED_VHI | ASYNC_SESSION_LOCKOUT | \
- ASYNC_PGRP_LOCKOUT | ASYNC_CALLOUT_NOHUP)
-
-static struct tty_driver *riscom_driver;
-
-static DEFINE_SPINLOCK(riscom_lock);
-
-static struct riscom_board rc_board[RC_NBOARD] = {
- {
- .base = RC_IOBASE1,
- },
- {
- .base = RC_IOBASE2,
- },
- {
- .base = RC_IOBASE3,
- },
- {
- .base = RC_IOBASE4,
- },
-};
-
-static struct riscom_port rc_port[RC_NBOARD * RC_NPORT];
-
-/* RISCom/8 I/O ports addresses (without address translation) */
-static unsigned short rc_ioport[] = {
-#if 1
- 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x09, 0x0a, 0x0b, 0x0c,
-#else
- 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x09, 0x0a, 0x0b, 0x0c, 0x10,
- 0x11, 0x12, 0x18, 0x28, 0x31, 0x32, 0x39, 0x3a, 0x40, 0x41, 0x61, 0x62,
- 0x63, 0x64, 0x6b, 0x70, 0x71, 0x78, 0x7a, 0x7b, 0x7f, 0x100, 0x101
-#endif
-};
-#define RC_NIOPORT ARRAY_SIZE(rc_ioport)
-
-
-static int rc_paranoia_check(struct riscom_port const *port,
- char *name, const char *routine)
-{
-#ifdef RISCOM_PARANOIA_CHECK
- static const char badmagic[] = KERN_INFO
- "rc: Warning: bad riscom port magic number for device %s in %s\n";
- static const char badinfo[] = KERN_INFO
- "rc: Warning: null riscom port for device %s in %s\n";
-
- if (!port) {
- printk(badinfo, name, routine);
- return 1;
- }
- if (port->magic != RISCOM8_MAGIC) {
- printk(badmagic, name, routine);
- return 1;
- }
-#endif
- return 0;
-}
-
-/*
- *
- * Service functions for RISCom/8 driver.
- *
- */
-
-/* Get board number from pointer */
-static inline int board_No(struct riscom_board const *bp)
-{
- return bp - rc_board;
-}
-
-/* Get port number from pointer */
-static inline int port_No(struct riscom_port const *port)
-{
- return RC_PORT(port - rc_port);
-}
-
-/* Get pointer to board from pointer to port */
-static inline struct riscom_board *port_Board(struct riscom_port const *port)
-{
- return &rc_board[RC_BOARD(port - rc_port)];
-}
-
-/* Input Byte from CL CD180 register */
-static inline unsigned char rc_in(struct riscom_board const *bp,
- unsigned short reg)
-{
- return inb(bp->base + RC_TO_ISA(reg));
-}
-
-/* Output Byte to CL CD180 register */
-static inline void rc_out(struct riscom_board const *bp, unsigned short reg,
- unsigned char val)
-{
- outb(val, bp->base + RC_TO_ISA(reg));
-}
-
-/* Wait for Channel Command Register ready */
-static void rc_wait_CCR(struct riscom_board const *bp)
-{
- unsigned long delay;
-
- /* FIXME: need something more descriptive then 100000 :) */
- for (delay = 100000; delay; delay--)
- if (!rc_in(bp, CD180_CCR))
- return;
-
- printk(KERN_INFO "rc%d: Timeout waiting for CCR.\n", board_No(bp));
-}
-
-/*
- * RISCom/8 probe functions.
- */
-
-static int rc_request_io_range(struct riscom_board * const bp)
-{
- int i;
-
- for (i = 0; i < RC_NIOPORT; i++)
- if (!request_region(RC_TO_ISA(rc_ioport[i]) + bp->base, 1,
- "RISCom/8")) {
- goto out_release;
- }
- return 0;
-out_release:
- printk(KERN_INFO "rc%d: Skipping probe at 0x%03x. IO address in use.\n",
- board_No(bp), bp->base);
- while (--i >= 0)
- release_region(RC_TO_ISA(rc_ioport[i]) + bp->base, 1);
- return 1;
-}
-
-static void rc_release_io_range(struct riscom_board * const bp)
-{
- int i;
-
- for (i = 0; i < RC_NIOPORT; i++)
- release_region(RC_TO_ISA(rc_ioport[i]) + bp->base, 1);
-}
-
-/* Reset and setup CD180 chip */
-static void __init rc_init_CD180(struct riscom_board const *bp)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&riscom_lock, flags);
-
- rc_out(bp, RC_CTOUT, 0); /* Clear timeout */
- rc_wait_CCR(bp); /* Wait for CCR ready */
- rc_out(bp, CD180_CCR, CCR_HARDRESET); /* Reset CD180 chip */
- spin_unlock_irqrestore(&riscom_lock, flags);
- msleep(50); /* Delay 0.05 sec */
- spin_lock_irqsave(&riscom_lock, flags);
- rc_out(bp, CD180_GIVR, RC_ID); /* Set ID for this chip */
- rc_out(bp, CD180_GICR, 0); /* Clear all bits */
- rc_out(bp, CD180_PILR1, RC_ACK_MINT); /* Prio for modem intr */
- rc_out(bp, CD180_PILR2, RC_ACK_TINT); /* Prio for tx intr */
- rc_out(bp, CD180_PILR3, RC_ACK_RINT); /* Prio for rx intr */
-
- /* Setting up prescaler. We need 4 ticks per 1 ms */
- rc_out(bp, CD180_PPRH, (RC_OSCFREQ/(1000000/RISCOM_TPS)) >> 8);
- rc_out(bp, CD180_PPRL, (RC_OSCFREQ/(1000000/RISCOM_TPS)) & 0xff);
-
- spin_unlock_irqrestore(&riscom_lock, flags);
-}
-
-/* Main probing routine, also sets irq. */
-static int __init rc_probe(struct riscom_board *bp)
-{
- unsigned char val1, val2;
- int irqs = 0;
- int retries;
-
- bp->irq = 0;
-
- if (rc_request_io_range(bp))
- return 1;
-
- /* Are the I/O ports here ? */
- rc_out(bp, CD180_PPRL, 0x5a);
- outb(0xff, 0x80);
- val1 = rc_in(bp, CD180_PPRL);
- rc_out(bp, CD180_PPRL, 0xa5);
- outb(0x00, 0x80);
- val2 = rc_in(bp, CD180_PPRL);
-
- if ((val1 != 0x5a) || (val2 != 0xa5)) {
- printk(KERN_ERR "rc%d: RISCom/8 Board at 0x%03x not found.\n",
- board_No(bp), bp->base);
- goto out_release;
- }
-
- /* It's time to find IRQ for this board */
- for (retries = 0; retries < 5 && irqs <= 0; retries++) {
- irqs = probe_irq_on();
- rc_init_CD180(bp); /* Reset CD180 chip */
- rc_out(bp, CD180_CAR, 2); /* Select port 2 */
- rc_wait_CCR(bp);
- rc_out(bp, CD180_CCR, CCR_TXEN); /* Enable transmitter */
- rc_out(bp, CD180_IER, IER_TXRDY);/* Enable tx empty intr */
- msleep(50);
- irqs = probe_irq_off(irqs);
- val1 = rc_in(bp, RC_BSR); /* Get Board Status reg */
- val2 = rc_in(bp, RC_ACK_TINT); /* ACK interrupt */
- rc_init_CD180(bp); /* Reset CD180 again */
-
- if ((val1 & RC_BSR_TINT) || (val2 != (RC_ID | GIVR_IT_TX))) {
- printk(KERN_ERR "rc%d: RISCom/8 Board at 0x%03x not "
- "found.\n", board_No(bp), bp->base);
- goto out_release;
- }
- }
-
- if (irqs <= 0) {
- printk(KERN_ERR "rc%d: Can't find IRQ for RISCom/8 board "
- "at 0x%03x.\n", board_No(bp), bp->base);
- goto out_release;
- }
- bp->irq = irqs;
- bp->flags |= RC_BOARD_PRESENT;
-
- printk(KERN_INFO "rc%d: RISCom/8 Rev. %c board detected at "
- "0x%03x, IRQ %d.\n",
- board_No(bp),
- (rc_in(bp, CD180_GFRCR) & 0x0f) + 'A', /* Board revision */
- bp->base, bp->irq);
-
- return 0;
-out_release:
- rc_release_io_range(bp);
- return 1;
-}
-
-/*
- *
- * Interrupt processing routines.
- *
- */
-
-static struct riscom_port *rc_get_port(struct riscom_board const *bp,
- unsigned char const *what)
-{
- unsigned char channel;
- struct riscom_port *port;
-
- channel = rc_in(bp, CD180_GICR) >> GICR_CHAN_OFF;
- if (channel < CD180_NCH) {
- port = &rc_port[board_No(bp) * RC_NPORT + channel];
- if (port->port.flags & ASYNC_INITIALIZED)
- return port;
- }
- printk(KERN_ERR "rc%d: %s interrupt from invalid port %d\n",
- board_No(bp), what, channel);
- return NULL;
-}
-
-static void rc_receive_exc(struct riscom_board const *bp)
-{
- struct riscom_port *port;
- struct tty_struct *tty;
- unsigned char status;
- unsigned char ch, flag;
-
- port = rc_get_port(bp, "Receive");
- if (port == NULL)
- return;
-
- tty = tty_port_tty_get(&port->port);
-
-#ifdef RC_REPORT_OVERRUN
- status = rc_in(bp, CD180_RCSR);
- if (status & RCSR_OE)
- port->overrun++;
- status &= port->mark_mask;
-#else
- status = rc_in(bp, CD180_RCSR) & port->mark_mask;
-#endif
- ch = rc_in(bp, CD180_RDR);
- if (!status)
- goto out;
- if (status & RCSR_TOUT) {
- printk(KERN_WARNING "rc%d: port %d: Receiver timeout. "
- "Hardware problems ?\n",
- board_No(bp), port_No(port));
- goto out;
-
- } else if (status & RCSR_BREAK) {
- printk(KERN_INFO "rc%d: port %d: Handling break...\n",
- board_No(bp), port_No(port));
- flag = TTY_BREAK;
- if (tty && (port->port.flags & ASYNC_SAK))
- do_SAK(tty);
-
- } else if (status & RCSR_PE)
- flag = TTY_PARITY;
-
- else if (status & RCSR_FE)
- flag = TTY_FRAME;
-
- else if (status & RCSR_OE)
- flag = TTY_OVERRUN;
- else
- flag = TTY_NORMAL;
-
- if (tty) {
- tty_insert_flip_char(tty, ch, flag);
- tty_flip_buffer_push(tty);
- }
-out:
- tty_kref_put(tty);
-}
-
-static void rc_receive(struct riscom_board const *bp)
-{
- struct riscom_port *port;
- struct tty_struct *tty;
- unsigned char count;
-
- port = rc_get_port(bp, "Receive");
- if (port == NULL)
- return;
-
- tty = tty_port_tty_get(&port->port);
-
- count = rc_in(bp, CD180_RDCR);
-
-#ifdef RC_REPORT_FIFO
- port->hits[count > 8 ? 9 : count]++;
-#endif
-
- while (count--) {
- u8 ch = rc_in(bp, CD180_RDR);
- if (tty)
- tty_insert_flip_char(tty, ch, TTY_NORMAL);
- }
- if (tty) {
- tty_flip_buffer_push(tty);
- tty_kref_put(tty);
- }
-}
-
-static void rc_transmit(struct riscom_board const *bp)
-{
- struct riscom_port *port;
- struct tty_struct *tty;
- unsigned char count;
-
- port = rc_get_port(bp, "Transmit");
- if (port == NULL)
- return;
-
- tty = tty_port_tty_get(&port->port);
-
- if (port->IER & IER_TXEMPTY) {
- /* FIFO drained */
- rc_out(bp, CD180_CAR, port_No(port));
- port->IER &= ~IER_TXEMPTY;
- rc_out(bp, CD180_IER, port->IER);
- goto out;
- }
-
- if ((port->xmit_cnt <= 0 && !port->break_length)
- || (tty && (tty->stopped || tty->hw_stopped))) {
- rc_out(bp, CD180_CAR, port_No(port));
- port->IER &= ~IER_TXRDY;
- rc_out(bp, CD180_IER, port->IER);
- goto out;
- }
-
- if (port->break_length) {
- if (port->break_length > 0) {
- if (port->COR2 & COR2_ETC) {
- rc_out(bp, CD180_TDR, CD180_C_ESC);
- rc_out(bp, CD180_TDR, CD180_C_SBRK);
- port->COR2 &= ~COR2_ETC;
- }
- count = min_t(int, port->break_length, 0xff);
- rc_out(bp, CD180_TDR, CD180_C_ESC);
- rc_out(bp, CD180_TDR, CD180_C_DELAY);
- rc_out(bp, CD180_TDR, count);
- port->break_length -= count;
- if (port->break_length == 0)
- port->break_length--;
- } else {
- rc_out(bp, CD180_TDR, CD180_C_ESC);
- rc_out(bp, CD180_TDR, CD180_C_EBRK);
- rc_out(bp, CD180_COR2, port->COR2);
- rc_wait_CCR(bp);
- rc_out(bp, CD180_CCR, CCR_CORCHG2);
- port->break_length = 0;
- }
- goto out;
- }
-
- count = CD180_NFIFO;
- do {
- rc_out(bp, CD180_TDR, port->port.xmit_buf[port->xmit_tail++]);
- port->xmit_tail = port->xmit_tail & (SERIAL_XMIT_SIZE-1);
- if (--port->xmit_cnt <= 0)
- break;
- } while (--count > 0);
-
- if (port->xmit_cnt <= 0) {
- rc_out(bp, CD180_CAR, port_No(port));
- port->IER &= ~IER_TXRDY;
- rc_out(bp, CD180_IER, port->IER);
- }
- if (tty && port->xmit_cnt <= port->wakeup_chars)
- tty_wakeup(tty);
-out:
- tty_kref_put(tty);
-}
-
-static void rc_check_modem(struct riscom_board const *bp)
-{
- struct riscom_port *port;
- struct tty_struct *tty;
- unsigned char mcr;
-
- port = rc_get_port(bp, "Modem");
- if (port == NULL)
- return;
-
- tty = tty_port_tty_get(&port->port);
-
- mcr = rc_in(bp, CD180_MCR);
- if (mcr & MCR_CDCHG) {
- if (rc_in(bp, CD180_MSVR) & MSVR_CD)
- wake_up_interruptible(&port->port.open_wait);
- else if (tty)
- tty_hangup(tty);
- }
-
-#ifdef RISCOM_BRAIN_DAMAGED_CTS
- if (mcr & MCR_CTSCHG) {
- if (rc_in(bp, CD180_MSVR) & MSVR_CTS) {
- port->IER |= IER_TXRDY;
- if (tty) {
- tty->hw_stopped = 0;
- if (port->xmit_cnt <= port->wakeup_chars)
- tty_wakeup(tty);
- }
- } else {
- if (tty)
- tty->hw_stopped = 1;
- port->IER &= ~IER_TXRDY;
- }
- rc_out(bp, CD180_IER, port->IER);
- }
- if (mcr & MCR_DSRCHG) {
- if (rc_in(bp, CD180_MSVR) & MSVR_DSR) {
- port->IER |= IER_TXRDY;
- if (tty) {
- tty->hw_stopped = 0;
- if (port->xmit_cnt <= port->wakeup_chars)
- tty_wakeup(tty);
- }
- } else {
- if (tty)
- tty->hw_stopped = 1;
- port->IER &= ~IER_TXRDY;
- }
- rc_out(bp, CD180_IER, port->IER);
- }
-#endif /* RISCOM_BRAIN_DAMAGED_CTS */
-
- /* Clear change bits */
- rc_out(bp, CD180_MCR, 0);
- tty_kref_put(tty);
-}
-
-/* The main interrupt processing routine */
-static irqreturn_t rc_interrupt(int dummy, void *dev_id)
-{
- unsigned char status;
- unsigned char ack;
- struct riscom_board *bp = dev_id;
- unsigned long loop = 0;
- int handled = 0;
-
- if (!(bp->flags & RC_BOARD_ACTIVE))
- return IRQ_NONE;
-
- while ((++loop < 16) && ((status = ~(rc_in(bp, RC_BSR))) &
- (RC_BSR_TOUT | RC_BSR_TINT |
- RC_BSR_MINT | RC_BSR_RINT))) {
- handled = 1;
- if (status & RC_BSR_TOUT)
- printk(KERN_WARNING "rc%d: Got timeout. Hardware "
- "error?\n", board_No(bp));
- else if (status & RC_BSR_RINT) {
- ack = rc_in(bp, RC_ACK_RINT);
- if (ack == (RC_ID | GIVR_IT_RCV))
- rc_receive(bp);
- else if (ack == (RC_ID | GIVR_IT_REXC))
- rc_receive_exc(bp);
- else
- printk(KERN_WARNING "rc%d: Bad receive ack "
- "0x%02x.\n",
- board_No(bp), ack);
- } else if (status & RC_BSR_TINT) {
- ack = rc_in(bp, RC_ACK_TINT);
- if (ack == (RC_ID | GIVR_IT_TX))
- rc_transmit(bp);
- else
- printk(KERN_WARNING "rc%d: Bad transmit ack "
- "0x%02x.\n",
- board_No(bp), ack);
- } else /* if (status & RC_BSR_MINT) */ {
- ack = rc_in(bp, RC_ACK_MINT);
- if (ack == (RC_ID | GIVR_IT_MODEM))
- rc_check_modem(bp);
- else
- printk(KERN_WARNING "rc%d: Bad modem ack "
- "0x%02x.\n",
- board_No(bp), ack);
- }
- rc_out(bp, CD180_EOIR, 0); /* Mark end of interrupt */
- rc_out(bp, RC_CTOUT, 0); /* Clear timeout flag */
- }
- return IRQ_RETVAL(handled);
-}
-
-/*
- * Routines for open & close processing.
- */
-
-/* Called with disabled interrupts */
-static int rc_setup_board(struct riscom_board *bp)
-{
- int error;
-
- if (bp->flags & RC_BOARD_ACTIVE)
- return 0;
-
- error = request_irq(bp->irq, rc_interrupt, IRQF_DISABLED,
- "RISCom/8", bp);
- if (error)
- return error;
-
- rc_out(bp, RC_CTOUT, 0); /* Just in case */
- bp->DTR = ~0;
- rc_out(bp, RC_DTR, bp->DTR); /* Drop DTR on all ports */
-
- bp->flags |= RC_BOARD_ACTIVE;
-
- return 0;
-}
-
-/* Called with disabled interrupts */
-static void rc_shutdown_board(struct riscom_board *bp)
-{
- if (!(bp->flags & RC_BOARD_ACTIVE))
- return;
-
- bp->flags &= ~RC_BOARD_ACTIVE;
-
- free_irq(bp->irq, NULL);
-
- bp->DTR = ~0;
- rc_out(bp, RC_DTR, bp->DTR); /* Drop DTR on all ports */
-
-}
-
-/*
- * Setting up port characteristics.
- * Must be called with disabled interrupts
- */
-static void rc_change_speed(struct tty_struct *tty, struct riscom_board *bp,
- struct riscom_port *port)
-{
- unsigned long baud;
- long tmp;
- unsigned char cor1 = 0, cor3 = 0;
- unsigned char mcor1 = 0, mcor2 = 0;
-
- port->IER = 0;
- port->COR2 = 0;
- port->MSVR = MSVR_RTS;
-
- baud = tty_get_baud_rate(tty);
-
- /* Select port on the board */
- rc_out(bp, CD180_CAR, port_No(port));
-
- if (!baud) {
- /* Drop DTR & exit */
- bp->DTR |= (1u << port_No(port));
- rc_out(bp, RC_DTR, bp->DTR);
- return;
- } else {
- /* Set DTR on */
- bp->DTR &= ~(1u << port_No(port));
- rc_out(bp, RC_DTR, bp->DTR);
- }
-
- /*
- * Now we must calculate some speed depended things
- */
-
- /* Set baud rate for port */
- tmp = (((RC_OSCFREQ + baud/2) / baud +
- CD180_TPC/2) / CD180_TPC);
-
- rc_out(bp, CD180_RBPRH, (tmp >> 8) & 0xff);
- rc_out(bp, CD180_TBPRH, (tmp >> 8) & 0xff);
- rc_out(bp, CD180_RBPRL, tmp & 0xff);
- rc_out(bp, CD180_TBPRL, tmp & 0xff);
-
- baud = (baud + 5) / 10; /* Estimated CPS */
-
- /* Two timer ticks seems enough to wakeup something like SLIP driver */
- tmp = ((baud + HZ/2) / HZ) * 2 - CD180_NFIFO;
- port->wakeup_chars = (tmp < 0) ? 0 : ((tmp >= SERIAL_XMIT_SIZE) ?
- SERIAL_XMIT_SIZE - 1 : tmp);
-
- /* Receiver timeout will be transmission time for 1.5 chars */
- tmp = (RISCOM_TPS + RISCOM_TPS/2 + baud/2) / baud;
- tmp = (tmp > 0xff) ? 0xff : tmp;
- rc_out(bp, CD180_RTPR, tmp);
-
- switch (C_CSIZE(tty)) {
- case CS5:
- cor1 |= COR1_5BITS;
- break;
- case CS6:
- cor1 |= COR1_6BITS;
- break;
- case CS7:
- cor1 |= COR1_7BITS;
- break;
- case CS8:
- cor1 |= COR1_8BITS;
- break;
- }
- if (C_CSTOPB(tty))
- cor1 |= COR1_2SB;
-
- cor1 |= COR1_IGNORE;
- if (C_PARENB(tty)) {
- cor1 |= COR1_NORMPAR;
- if (C_PARODD(tty))
- cor1 |= COR1_ODDP;
- if (I_INPCK(tty))
- cor1 &= ~COR1_IGNORE;
- }
- /* Set marking of some errors */
- port->mark_mask = RCSR_OE | RCSR_TOUT;
- if (I_INPCK(tty))
- port->mark_mask |= RCSR_FE | RCSR_PE;
- if (I_BRKINT(tty) || I_PARMRK(tty))
- port->mark_mask |= RCSR_BREAK;
- if (I_IGNPAR(tty))
- port->mark_mask &= ~(RCSR_FE | RCSR_PE);
- if (I_IGNBRK(tty)) {
- port->mark_mask &= ~RCSR_BREAK;
- if (I_IGNPAR(tty))
- /* Real raw mode. Ignore all */
- port->mark_mask &= ~RCSR_OE;
- }
- /* Enable Hardware Flow Control */
- if (C_CRTSCTS(tty)) {
-#ifdef RISCOM_BRAIN_DAMAGED_CTS
- port->IER |= IER_DSR | IER_CTS;
- mcor1 |= MCOR1_DSRZD | MCOR1_CTSZD;
- mcor2 |= MCOR2_DSROD | MCOR2_CTSOD;
- tty->hw_stopped = !(rc_in(bp, CD180_MSVR) &
- (MSVR_CTS|MSVR_DSR));
-#else
- port->COR2 |= COR2_CTSAE;
-#endif
- }
- /* Enable Software Flow Control. FIXME: I'm not sure about this */
- /* Some people reported that it works, but I still doubt */
- if (I_IXON(tty)) {
- port->COR2 |= COR2_TXIBE;
- cor3 |= (COR3_FCT | COR3_SCDE);
- if (I_IXANY(tty))
- port->COR2 |= COR2_IXM;
- rc_out(bp, CD180_SCHR1, START_CHAR(tty));
- rc_out(bp, CD180_SCHR2, STOP_CHAR(tty));
- rc_out(bp, CD180_SCHR3, START_CHAR(tty));
- rc_out(bp, CD180_SCHR4, STOP_CHAR(tty));
- }
- if (!C_CLOCAL(tty)) {
- /* Enable CD check */
- port->IER |= IER_CD;
- mcor1 |= MCOR1_CDZD;
- mcor2 |= MCOR2_CDOD;
- }
-
- if (C_CREAD(tty))
- /* Enable receiver */
- port->IER |= IER_RXD;
-
- /* Set input FIFO size (1-8 bytes) */
- cor3 |= RISCOM_RXFIFO;
- /* Setting up CD180 channel registers */
- rc_out(bp, CD180_COR1, cor1);
- rc_out(bp, CD180_COR2, port->COR2);
- rc_out(bp, CD180_COR3, cor3);
- /* Make CD180 know about registers change */
- rc_wait_CCR(bp);
- rc_out(bp, CD180_CCR, CCR_CORCHG1 | CCR_CORCHG2 | CCR_CORCHG3);
- /* Setting up modem option registers */
- rc_out(bp, CD180_MCOR1, mcor1);
- rc_out(bp, CD180_MCOR2, mcor2);
- /* Enable CD180 transmitter & receiver */
- rc_wait_CCR(bp);
- rc_out(bp, CD180_CCR, CCR_TXEN | CCR_RXEN);
- /* Enable interrupts */
- rc_out(bp, CD180_IER, port->IER);
- /* And finally set RTS on */
- rc_out(bp, CD180_MSVR, port->MSVR);
-}
-
-/* Must be called with interrupts enabled */
-static int rc_activate_port(struct tty_port *port, struct tty_struct *tty)
-{
- struct riscom_port *rp = container_of(port, struct riscom_port, port);
- struct riscom_board *bp = port_Board(rp);
- unsigned long flags;
-
- if (tty_port_alloc_xmit_buf(port) < 0)
- return -ENOMEM;
-
- spin_lock_irqsave(&riscom_lock, flags);
-
- clear_bit(TTY_IO_ERROR, &tty->flags);
- bp->count++;
- rp->xmit_cnt = rp->xmit_head = rp->xmit_tail = 0;
- rc_change_speed(tty, bp, rp);
- spin_unlock_irqrestore(&riscom_lock, flags);
- return 0;
-}
-
-/* Must be called with interrupts disabled */
-static void rc_shutdown_port(struct tty_struct *tty,
- struct riscom_board *bp, struct riscom_port *port)
-{
-#ifdef RC_REPORT_OVERRUN
- printk(KERN_INFO "rc%d: port %d: Total %ld overruns were detected.\n",
- board_No(bp), port_No(port), port->overrun);
-#endif
-#ifdef RC_REPORT_FIFO
- {
- int i;
-
- printk(KERN_INFO "rc%d: port %d: FIFO hits [ ",
- board_No(bp), port_No(port));
- for (i = 0; i < 10; i++)
- printk("%ld ", port->hits[i]);
- printk("].\n");
- }
-#endif
- tty_port_free_xmit_buf(&port->port);
-
- /* Select port */
- rc_out(bp, CD180_CAR, port_No(port));
- /* Reset port */
- rc_wait_CCR(bp);
- rc_out(bp, CD180_CCR, CCR_SOFTRESET);
- /* Disable all interrupts from this port */
- port->IER = 0;
- rc_out(bp, CD180_IER, port->IER);
-
- set_bit(TTY_IO_ERROR, &tty->flags);
-
- if (--bp->count < 0) {
- printk(KERN_INFO "rc%d: rc_shutdown_port: "
- "bad board count: %d\n",
- board_No(bp), bp->count);
- bp->count = 0;
- }
- /*
- * If this is the last opened port on the board
- * shutdown whole board
- */
- if (!bp->count)
- rc_shutdown_board(bp);
-}
-
-static int carrier_raised(struct tty_port *port)
-{
- struct riscom_port *p = container_of(port, struct riscom_port, port);
- struct riscom_board *bp = port_Board(p);
- unsigned long flags;
- int CD;
-
- spin_lock_irqsave(&riscom_lock, flags);
- rc_out(bp, CD180_CAR, port_No(p));
- CD = rc_in(bp, CD180_MSVR) & MSVR_CD;
- rc_out(bp, CD180_MSVR, MSVR_RTS);
- bp->DTR &= ~(1u << port_No(p));
- rc_out(bp, RC_DTR, bp->DTR);
- spin_unlock_irqrestore(&riscom_lock, flags);
- return CD;
-}
-
-static void dtr_rts(struct tty_port *port, int onoff)
-{
- struct riscom_port *p = container_of(port, struct riscom_port, port);
- struct riscom_board *bp = port_Board(p);
- unsigned long flags;
-
- spin_lock_irqsave(&riscom_lock, flags);
- bp->DTR &= ~(1u << port_No(p));
- if (onoff == 0)
- bp->DTR |= (1u << port_No(p));
- rc_out(bp, RC_DTR, bp->DTR);
- spin_unlock_irqrestore(&riscom_lock, flags);
-}
-
-static int rc_open(struct tty_struct *tty, struct file *filp)
-{
- int board;
- int error;
- struct riscom_port *port;
- struct riscom_board *bp;
-
- board = RC_BOARD(tty->index);
- if (board >= RC_NBOARD || !(rc_board[board].flags & RC_BOARD_PRESENT))
- return -ENODEV;
-
- bp = &rc_board[board];
- port = rc_port + board * RC_NPORT + RC_PORT(tty->index);
- if (rc_paranoia_check(port, tty->name, "rc_open"))
- return -ENODEV;
-
- error = rc_setup_board(bp);
- if (error)
- return error;
-
- tty->driver_data = port;
- return tty_port_open(&port->port, tty, filp);
-}
-
-static void rc_flush_buffer(struct tty_struct *tty)
-{
- struct riscom_port *port = tty->driver_data;
- unsigned long flags;
-
- if (rc_paranoia_check(port, tty->name, "rc_flush_buffer"))
- return;
-
- spin_lock_irqsave(&riscom_lock, flags);
- port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
- spin_unlock_irqrestore(&riscom_lock, flags);
-
- tty_wakeup(tty);
-}
-
-static void rc_close_port(struct tty_port *port)
-{
- unsigned long flags;
- struct riscom_port *rp = container_of(port, struct riscom_port, port);
- struct riscom_board *bp = port_Board(rp);
- 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.
- */
-
- spin_lock_irqsave(&riscom_lock, flags);
- rp->IER &= ~IER_RXD;
-
- rp->IER &= ~IER_TXRDY;
- rp->IER |= IER_TXEMPTY;
- rc_out(bp, CD180_CAR, port_No(rp));
- rc_out(bp, CD180_IER, rp->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 (rp->IER & IER_TXEMPTY) {
- spin_unlock_irqrestore(&riscom_lock, flags);
- msleep_interruptible(jiffies_to_msecs(rp->timeout));
- spin_lock_irqsave(&riscom_lock, flags);
- if (time_after(jiffies, timeout))
- break;
- }
- rc_shutdown_port(port->tty, bp, rp);
- spin_unlock_irqrestore(&riscom_lock, flags);
-}
-
-static void rc_close(struct tty_struct *tty, struct file *filp)
-{
- struct riscom_port *port = tty->driver_data;
-
- if (!port || rc_paranoia_check(port, tty->name, "close"))
- return;
- tty_port_close(&port->port, tty, filp);
-}
-
-static int rc_write(struct tty_struct *tty,
- const unsigned char *buf, int count)
-{
- struct riscom_port *port = tty->driver_data;
- struct riscom_board *bp;
- int c, total = 0;
- unsigned long flags;
-
- if (rc_paranoia_check(port, tty->name, "rc_write"))
- return 0;
-
- bp = port_Board(port);
-
- while (1) {
- spin_lock_irqsave(&riscom_lock, flags);
-
- c = min_t(int, count, min(SERIAL_XMIT_SIZE - port->xmit_cnt - 1,
- SERIAL_XMIT_SIZE - port->xmit_head));
- if (c <= 0)
- break; /* lock continues to be held */
-
- memcpy(port->port.xmit_buf + port->xmit_head, buf, c);
- port->xmit_head = (port->xmit_head + c) & (SERIAL_XMIT_SIZE-1);
- port->xmit_cnt += c;
-
- spin_unlock_irqrestore(&riscom_lock, flags);
-
- buf += c;
- count -= c;
- total += c;
- }
-
- if (port->xmit_cnt && !tty->stopped && !tty->hw_stopped &&
- !(port->IER & IER_TXRDY)) {
- port->IER |= IER_TXRDY;
- rc_out(bp, CD180_CAR, port_No(port));
- rc_out(bp, CD180_IER, port->IER);
- }
-
- spin_unlock_irqrestore(&riscom_lock, flags);
-
- return total;
-}
-
-static int rc_put_char(struct tty_struct *tty, unsigned char ch)
-{
- struct riscom_port *port = tty->driver_data;
- unsigned long flags;
- int ret = 0;
-
- if (rc_paranoia_check(port, tty->name, "rc_put_char"))
- return 0;
-
- spin_lock_irqsave(&riscom_lock, flags);
-
- if (port->xmit_cnt >= SERIAL_XMIT_SIZE - 1)
- goto out;
-
- port->port.xmit_buf[port->xmit_head++] = ch;
- port->xmit_head &= SERIAL_XMIT_SIZE - 1;
- port->xmit_cnt++;
- ret = 1;
-
-out:
- spin_unlock_irqrestore(&riscom_lock, flags);
- return ret;
-}
-
-static void rc_flush_chars(struct tty_struct *tty)
-{
- struct riscom_port *port = tty->driver_data;
- unsigned long flags;
-
- if (rc_paranoia_check(port, tty->name, "rc_flush_chars"))
- return;
-
- if (port->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped)
- return;
-
- spin_lock_irqsave(&riscom_lock, flags);
-
- port->IER |= IER_TXRDY;
- rc_out(port_Board(port), CD180_CAR, port_No(port));
- rc_out(port_Board(port), CD180_IER, port->IER);
-
- spin_unlock_irqrestore(&riscom_lock, flags);
-}
-
-static int rc_write_room(struct tty_struct *tty)
-{
- struct riscom_port *port = tty->driver_data;
- int ret;
-
- if (rc_paranoia_check(port, tty->name, "rc_write_room"))
- return 0;
-
- ret = SERIAL_XMIT_SIZE - port->xmit_cnt - 1;
- if (ret < 0)
- ret = 0;
- return ret;
-}
-
-static int rc_chars_in_buffer(struct tty_struct *tty)
-{
- struct riscom_port *port = tty->driver_data;
-
- if (rc_paranoia_check(port, tty->name, "rc_chars_in_buffer"))
- return 0;
-
- return port->xmit_cnt;
-}
-
-static int rc_tiocmget(struct tty_struct *tty)
-{
- struct riscom_port *port = tty->driver_data;
- struct riscom_board *bp;
- unsigned char status;
- unsigned int result;
- unsigned long flags;
-
- if (rc_paranoia_check(port, tty->name, __func__))
- return -ENODEV;
-
- bp = port_Board(port);
-
- spin_lock_irqsave(&riscom_lock, flags);
-
- rc_out(bp, CD180_CAR, port_No(port));
- status = rc_in(bp, CD180_MSVR);
- result = rc_in(bp, RC_RI) & (1u << port_No(port)) ? 0 : TIOCM_RNG;
-
- spin_unlock_irqrestore(&riscom_lock, flags);
-
- result |= ((status & MSVR_RTS) ? TIOCM_RTS : 0)
- | ((status & MSVR_DTR) ? TIOCM_DTR : 0)
- | ((status & MSVR_CD) ? TIOCM_CAR : 0)
- | ((status & MSVR_DSR) ? TIOCM_DSR : 0)
- | ((status & MSVR_CTS) ? TIOCM_CTS : 0);
- return result;
-}
-
-static int rc_tiocmset(struct tty_struct *tty,
- unsigned int set, unsigned int clear)
-{
- struct riscom_port *port = tty->driver_data;
- unsigned long flags;
- struct riscom_board *bp;
-
- if (rc_paranoia_check(port, tty->name, __func__))
- return -ENODEV;
-
- bp = port_Board(port);
-
- spin_lock_irqsave(&riscom_lock, flags);
-
- if (set & TIOCM_RTS)
- port->MSVR |= MSVR_RTS;
- if (set & TIOCM_DTR)
- bp->DTR &= ~(1u << port_No(port));
-
- if (clear & TIOCM_RTS)
- port->MSVR &= ~MSVR_RTS;
- if (clear & TIOCM_DTR)
- bp->DTR |= (1u << port_No(port));
-
- rc_out(bp, CD180_CAR, port_No(port));
- rc_out(bp, CD180_MSVR, port->MSVR);
- rc_out(bp, RC_DTR, bp->DTR);
-
- spin_unlock_irqrestore(&riscom_lock, flags);
-
- return 0;
-}
-
-static int rc_send_break(struct tty_struct *tty, int length)
-{
- struct riscom_port *port = tty->driver_data;
- struct riscom_board *bp = port_Board(port);
- unsigned long flags;
-
- if (length == 0 || length == -1)
- return -EOPNOTSUPP;
-
- spin_lock_irqsave(&riscom_lock, flags);
-
- port->break_length = RISCOM_TPS / HZ * length;
- port->COR2 |= COR2_ETC;
- port->IER |= IER_TXRDY;
- rc_out(bp, CD180_CAR, port_No(port));
- rc_out(bp, CD180_COR2, port->COR2);
- rc_out(bp, CD180_IER, port->IER);
- rc_wait_CCR(bp);
- rc_out(bp, CD180_CCR, CCR_CORCHG2);
- rc_wait_CCR(bp);
-
- spin_unlock_irqrestore(&riscom_lock, flags);
- return 0;
-}
-
-static int rc_set_serial_info(struct tty_struct *tty, struct riscom_port *port,
- struct serial_struct __user *newinfo)
-{
- struct serial_struct tmp;
- struct riscom_board *bp = port_Board(port);
- int change_speed;
-
- if (copy_from_user(&tmp, newinfo, sizeof(tmp)))
- return -EFAULT;
-
- mutex_lock(&port->port.mutex);
- change_speed = ((port->port.flags & ASYNC_SPD_MASK) !=
- (tmp.flags & ASYNC_SPD_MASK));
-
- if (!capable(CAP_SYS_ADMIN)) {
- if ((tmp.close_delay != port->port.close_delay) ||
- (tmp.closing_wait != port->port.closing_wait) ||
- ((tmp.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) |
- (tmp.flags & ASYNC_USR_MASK));
- } else {
- port->port.flags = ((port->port.flags & ~ASYNC_FLAGS) |
- (tmp.flags & ASYNC_FLAGS));
- port->port.close_delay = tmp.close_delay;
- port->port.closing_wait = tmp.closing_wait;
- }
- if (change_speed) {
- unsigned long flags;
-
- spin_lock_irqsave(&riscom_lock, flags);
- rc_change_speed(tty, bp, port);
- spin_unlock_irqrestore(&riscom_lock, flags);
- }
- mutex_unlock(&port->port.mutex);
- return 0;
-}
-
-static int rc_get_serial_info(struct riscom_port *port,
- struct serial_struct __user *retinfo)
-{
- struct serial_struct tmp;
- struct riscom_board *bp = port_Board(port);
-
- memset(&tmp, 0, sizeof(tmp));
- tmp.type = PORT_CIRRUS;
- tmp.line = port - rc_port;
-
- mutex_lock(&port->port.mutex);
- tmp.port = bp->base;
- tmp.irq = bp->irq;
- tmp.flags = port->port.flags;
- tmp.baud_base = (RC_OSCFREQ + CD180_TPC/2) / CD180_TPC;
- tmp.close_delay = port->port.close_delay * HZ/100;
- tmp.closing_wait = port->port.closing_wait * HZ/100;
- mutex_unlock(&port->port.mutex);
- tmp.xmit_fifo_size = CD180_NFIFO;
- return copy_to_user(retinfo, &tmp, sizeof(tmp)) ? -EFAULT : 0;
-}
-
-static int rc_ioctl(struct tty_struct *tty,
- unsigned int cmd, unsigned long arg)
-{
- struct riscom_port *port = tty->driver_data;
- void __user *argp = (void __user *)arg;
- int retval;
-
- if (rc_paranoia_check(port, tty->name, "rc_ioctl"))
- return -ENODEV;
-
- switch (cmd) {
- case TIOCGSERIAL:
- retval = rc_get_serial_info(port, argp);
- break;
- case TIOCSSERIAL:
- retval = rc_set_serial_info(tty, port, argp);
- break;
- default:
- retval = -ENOIOCTLCMD;
- }
- return retval;
-}
-
-static void rc_throttle(struct tty_struct *tty)
-{
- struct riscom_port *port = tty->driver_data;
- struct riscom_board *bp;
- unsigned long flags;
-
- if (rc_paranoia_check(port, tty->name, "rc_throttle"))
- return;
- bp = port_Board(port);
-
- spin_lock_irqsave(&riscom_lock, flags);
- port->MSVR &= ~MSVR_RTS;
- rc_out(bp, CD180_CAR, port_No(port));
- if (I_IXOFF(tty)) {
- rc_wait_CCR(bp);
- rc_out(bp, CD180_CCR, CCR_SSCH2);
- rc_wait_CCR(bp);
- }
- rc_out(bp, CD180_MSVR, port->MSVR);
- spin_unlock_irqrestore(&riscom_lock, flags);
-}
-
-static void rc_unthrottle(struct tty_struct *tty)
-{
- struct riscom_port *port = tty->driver_data;
- struct riscom_board *bp;
- unsigned long flags;
-
- if (rc_paranoia_check(port, tty->name, "rc_unthrottle"))
- return;
- bp = port_Board(port);
-
- spin_lock_irqsave(&riscom_lock, flags);
- port->MSVR |= MSVR_RTS;
- rc_out(bp, CD180_CAR, port_No(port));
- if (I_IXOFF(tty)) {
- rc_wait_CCR(bp);
- rc_out(bp, CD180_CCR, CCR_SSCH1);
- rc_wait_CCR(bp);
- }
- rc_out(bp, CD180_MSVR, port->MSVR);
- spin_unlock_irqrestore(&riscom_lock, flags);
-}
-
-static void rc_stop(struct tty_struct *tty)
-{
- struct riscom_port *port = tty->driver_data;
- struct riscom_board *bp;
- unsigned long flags;
-
- if (rc_paranoia_check(port, tty->name, "rc_stop"))
- return;
-
- bp = port_Board(port);
-
- spin_lock_irqsave(&riscom_lock, flags);
- port->IER &= ~IER_TXRDY;
- rc_out(bp, CD180_CAR, port_No(port));
- rc_out(bp, CD180_IER, port->IER);
- spin_unlock_irqrestore(&riscom_lock, flags);
-}
-
-static void rc_start(struct tty_struct *tty)
-{
- struct riscom_port *port = tty->driver_data;
- struct riscom_board *bp;
- unsigned long flags;
-
- if (rc_paranoia_check(port, tty->name, "rc_start"))
- return;
-
- bp = port_Board(port);
-
- spin_lock_irqsave(&riscom_lock, flags);
-
- if (port->xmit_cnt && port->port.xmit_buf && !(port->IER & IER_TXRDY)) {
- port->IER |= IER_TXRDY;
- rc_out(bp, CD180_CAR, port_No(port));
- rc_out(bp, CD180_IER, port->IER);
- }
- spin_unlock_irqrestore(&riscom_lock, flags);
-}
-
-static void rc_hangup(struct tty_struct *tty)
-{
- struct riscom_port *port = tty->driver_data;
-
- if (rc_paranoia_check(port, tty->name, "rc_hangup"))
- return;
-
- tty_port_hangup(&port->port);
-}
-
-static void rc_set_termios(struct tty_struct *tty,
- struct ktermios *old_termios)
-{
- struct riscom_port *port = tty->driver_data;
- unsigned long flags;
-
- if (rc_paranoia_check(port, tty->name, "rc_set_termios"))
- return;
-
- spin_lock_irqsave(&riscom_lock, flags);
- rc_change_speed(tty, port_Board(port), port);
- spin_unlock_irqrestore(&riscom_lock, flags);
-
- if ((old_termios->c_cflag & CRTSCTS) &&
- !(tty->termios->c_cflag & CRTSCTS)) {
- tty->hw_stopped = 0;
- rc_start(tty);
- }
-}
-
-static const struct tty_operations riscom_ops = {
- .open = rc_open,
- .close = rc_close,
- .write = rc_write,
- .put_char = rc_put_char,
- .flush_chars = rc_flush_chars,
- .write_room = rc_write_room,
- .chars_in_buffer = rc_chars_in_buffer,
- .flush_buffer = rc_flush_buffer,
- .ioctl = rc_ioctl,
- .throttle = rc_throttle,
- .unthrottle = rc_unthrottle,
- .set_termios = rc_set_termios,
- .stop = rc_stop,
- .start = rc_start,
- .hangup = rc_hangup,
- .tiocmget = rc_tiocmget,
- .tiocmset = rc_tiocmset,
- .break_ctl = rc_send_break,
-};
-
-static const struct tty_port_operations riscom_port_ops = {
- .carrier_raised = carrier_raised,
- .dtr_rts = dtr_rts,
- .shutdown = rc_close_port,
- .activate = rc_activate_port,
-};
-
-
-static int __init rc_init_drivers(void)
-{
- int error;
- int i;
-
- riscom_driver = alloc_tty_driver(RC_NBOARD * RC_NPORT);
- if (!riscom_driver)
- return -ENOMEM;
-
- riscom_driver->owner = THIS_MODULE;
- riscom_driver->name = "ttyL";
- riscom_driver->major = RISCOM8_NORMAL_MAJOR;
- riscom_driver->type = TTY_DRIVER_TYPE_SERIAL;
- riscom_driver->subtype = SERIAL_TYPE_NORMAL;
- riscom_driver->init_termios = tty_std_termios;
- riscom_driver->init_termios.c_cflag =
- B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- riscom_driver->init_termios.c_ispeed = 9600;
- riscom_driver->init_termios.c_ospeed = 9600;
- riscom_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_HARDWARE_BREAK;
- tty_set_operations(riscom_driver, &riscom_ops);
- error = tty_register_driver(riscom_driver);
- if (error != 0) {
- put_tty_driver(riscom_driver);
- printk(KERN_ERR "rc: Couldn't register RISCom/8 driver, "
- "error = %d\n", error);
- return 1;
- }
- memset(rc_port, 0, sizeof(rc_port));
- for (i = 0; i < RC_NPORT * RC_NBOARD; i++) {
- tty_port_init(&rc_port[i].port);
- rc_port[i].port.ops = &riscom_port_ops;
- rc_port[i].magic = RISCOM8_MAGIC;
- }
- return 0;
-}
-
-static void rc_release_drivers(void)
-{
- tty_unregister_driver(riscom_driver);
- put_tty_driver(riscom_driver);
-}
-
-#ifndef MODULE
-/*
- * Called at boot time.
- *
- * You can specify IO base for up to RC_NBOARD cards,
- * using line "riscom8=0xiobase1,0xiobase2,.." at LILO prompt.
- * Note that there will be no probing at default
- * addresses in this case.
- *
- */
-static int __init riscom8_setup(char *str)
-{
- int ints[RC_NBOARD];
- int i;
-
- str = get_options(str, ARRAY_SIZE(ints), ints);
-
- for (i = 0; i < RC_NBOARD; i++) {
- if (i < ints[0])
- rc_board[i].base = ints[i+1];
- else
- rc_board[i].base = 0;
- }
- return 1;
-}
-
-__setup("riscom8=", riscom8_setup);
-#endif
-
-static char banner[] __initdata =
- KERN_INFO "rc: SDL RISCom/8 card driver v1.1, (c) D.Gorodchanin "
- "1994-1996.\n";
-static char no_boards_msg[] __initdata =
- KERN_INFO "rc: No RISCom/8 boards detected.\n";
-
-/*
- * This routine must be called by kernel at boot time
- */
-static int __init riscom8_init(void)
-{
- int i;
- int found = 0;
-
- printk(banner);
-
- if (rc_init_drivers())
- return -EIO;
-
- for (i = 0; i < RC_NBOARD; i++)
- if (rc_board[i].base && !rc_probe(&rc_board[i]))
- found++;
- if (!found) {
- rc_release_drivers();
- printk(no_boards_msg);
- return -EIO;
- }
- return 0;
-}
-
-#ifdef MODULE
-static int iobase;
-static int iobase1;
-static int iobase2;
-static int iobase3;
-module_param(iobase, int, 0);
-module_param(iobase1, int, 0);
-module_param(iobase2, int, 0);
-module_param(iobase3, int, 0);
-
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_CHARDEV_MAJOR(RISCOM8_NORMAL_MAJOR);
-#endif /* MODULE */
-
-/*
- * You can setup up to 4 boards (current value of RC_NBOARD)
- * by specifying "iobase=0xXXX iobase1=0xXXX ..." as insmod parameter.
- *
- */
-static int __init riscom8_init_module(void)
-{
-#ifdef MODULE
- int i;
-
- if (iobase || iobase1 || iobase2 || iobase3) {
- for (i = 0; i < RC_NBOARD; i++)
- rc_board[i].base = 0;
- }
-
- if (iobase)
- rc_board[0].base = iobase;
- if (iobase1)
- rc_board[1].base = iobase1;
- if (iobase2)
- rc_board[2].base = iobase2;
- if (iobase3)
- rc_board[3].base = iobase3;
-#endif /* MODULE */
-
- return riscom8_init();
-}
-
-static void __exit riscom8_exit_module(void)
-{
- int i;
-
- rc_release_drivers();
- for (i = 0; i < RC_NBOARD; i++)
- if (rc_board[i].flags & RC_BOARD_PRESENT)
- rc_release_io_range(&rc_board[i]);
-
-}
-
-module_init(riscom8_init_module);
-module_exit(riscom8_exit_module);