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Diffstat (limited to 'drivers/usb/serial/keyspan.c')
-rw-r--r--drivers/usb/serial/keyspan.c2354
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diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
new file mode 100644
index 000000000000..fb0926292228
--- /dev/null
+++ b/drivers/usb/serial/keyspan.c
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+/*
+ Keyspan USB to Serial Converter driver
+
+ (C) Copyright (C) 2000-2001 Hugh Blemings <hugh@blemings.org>
+ (C) Copyright (C) 2002 Greg Kroah-Hartman <greg@kroah.com>
+
+ 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.
+
+ See http://misc.nu/hugh/keyspan.html for more information.
+
+ Code in this driver inspired by and in a number of places taken
+ from Brian Warner's original Keyspan-PDA driver.
+
+ This driver has been put together with the support of Innosys, Inc.
+ and Keyspan, Inc the manufacturers of the Keyspan USB-serial products.
+ Thanks Guys :)
+
+ Thanks to Paulus for miscellaneous tidy ups, some largish chunks
+ of much nicer and/or completely new code and (perhaps most uniquely)
+ having the patience to sit down and explain why and where he'd changed
+ stuff.
+
+ Tip 'o the hat to IBM (and previously Linuxcare :) for supporting
+ staff in their work on open source projects.
+
+ Change History
+
+ 2003sep04 LPM (Keyspan) add support for new single port product USA19HS.
+ Improve setup message handling for all devices.
+
+ Wed Feb 19 22:00:00 PST 2003 (Jeffrey S. Laing <keyspan@jsl.com>)
+ Merged the current (1/31/03) Keyspan code with the current (2.4.21-pre4)
+ Linux source tree. The Linux tree lacked support for the 49WLC and
+ others. The Keyspan patches didn't work with the current kernel.
+
+ 2003jan30 LPM add support for the 49WLC and MPR
+
+ Wed Apr 25 12:00:00 PST 2002 (Keyspan)
+ Started with Hugh Blemings' code dated Jan 17, 2002. All adapters
+ now supported (including QI and QW). Modified port open, port
+ close, and send setup() logic to fix various data and endpoint
+ synchronization bugs and device LED status bugs. Changed keyspan_
+ write_room() to accurately return transmit buffer availability.
+ Changed forwardingLength from 1 to 16 for all adapters.
+
+ Fri Oct 12 16:45:00 EST 2001
+ Preliminary USA-19QI and USA-28 support (both test OK for me, YMMV)
+
+ Wed Apr 25 12:00:00 PST 2002 (Keyspan)
+ Started with Hugh Blemings' code dated Jan 17, 2002. All adapters
+ now supported (including QI and QW). Modified port open, port
+ close, and send setup() logic to fix various data and endpoint
+ synchronization bugs and device LED status bugs. Changed keyspan_
+ write_room() to accurately return transmit buffer availability.
+ Changed forwardingLength from 1 to 16 for all adapters.
+
+ Fri Oct 12 16:45:00 EST 2001
+ Preliminary USA-19QI and USA-28 support (both test OK for me, YMMV)
+
+ Mon Oct 8 14:29:00 EST 2001 hugh
+ Fixed bug that prevented mulitport devices operating correctly
+ if they weren't the first unit attached.
+
+ Sat Oct 6 12:31:21 EST 2001 hugh
+ Added support for USA-28XA and -28XB, misc cleanups, break support
+ for usa26 based models thanks to David Gibson.
+
+ Thu May 31 11:56:42 PDT 2001 gkh
+ switched from using spinlock to a semaphore
+
+ (04/08/2001) gb
+ Identify version on module load.
+
+ (11/01/2000) Adam J. Richter
+ usb_device_id table support.
+
+ Tue Oct 10 23:15:33 EST 2000 Hugh
+ Merged Paul's changes with my USA-49W mods. Work in progress
+ still...
+
+ Wed Jul 19 14:00:42 EST 2000 gkh
+ Added module_init and module_exit functions to handle the fact that
+ this driver is a loadable module now.
+
+ Tue Jul 18 16:14:52 EST 2000 Hugh
+ Basic character input/output for USA-19 now mostly works,
+ fixed at 9600 baud for the moment.
+
+ Sat Jul 8 11:11:48 EST 2000 Hugh
+ First public release - nothing works except the firmware upload.
+ Tested on PPC and x86 architectures, seems to behave...
+*/
+
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/jiffies.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/tty.h>
+#include <linux/tty_driver.h>
+#include <linux/tty_flip.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <asm/uaccess.h>
+#include <linux/usb.h>
+#include "usb-serial.h"
+#include "keyspan.h"
+
+static int debug;
+
+/*
+ * Version Information
+ */
+#define DRIVER_VERSION "v1.1.4"
+#define DRIVER_AUTHOR "Hugh Blemings <hugh@misc.nu"
+#define DRIVER_DESC "Keyspan USB to Serial Converter Driver"
+
+#define INSTAT_BUFLEN 32
+#define GLOCONT_BUFLEN 64
+
+ /* Per device and per port private data */
+struct keyspan_serial_private {
+ const struct keyspan_device_details *device_details;
+
+ struct urb *instat_urb;
+ char instat_buf[INSTAT_BUFLEN];
+
+ /* XXX this one probably will need a lock */
+ struct urb *glocont_urb;
+ char glocont_buf[GLOCONT_BUFLEN];
+};
+
+struct keyspan_port_private {
+ /* Keep track of which input & output endpoints to use */
+ int in_flip;
+ int out_flip;
+
+ /* Keep duplicate of device details in each port
+ structure as well - simplifies some of the
+ callback functions etc. */
+ const struct keyspan_device_details *device_details;
+
+ /* Input endpoints and buffer for this port */
+ struct urb *in_urbs[2];
+ char in_buffer[2][64];
+ /* Output endpoints and buffer for this port */
+ struct urb *out_urbs[2];
+ char out_buffer[2][64];
+
+ /* Input ack endpoint */
+ struct urb *inack_urb;
+ char inack_buffer[1];
+
+ /* Output control endpoint */
+ struct urb *outcont_urb;
+ char outcont_buffer[64];
+
+ /* Settings for the port */
+ int baud;
+ int old_baud;
+ unsigned int cflag;
+ unsigned int old_cflag;
+ enum {flow_none, flow_cts, flow_xon} flow_control;
+ int rts_state; /* Handshaking pins (outputs) */
+ int dtr_state;
+ int cts_state; /* Handshaking pins (inputs) */
+ int dsr_state;
+ int dcd_state;
+ int ri_state;
+ int break_on;
+
+ unsigned long tx_start_time[2];
+ int resend_cont; /* need to resend control packet */
+};
+
+
+/* Include Keyspan message headers. All current Keyspan Adapters
+ make use of one of four message formats which are referred
+ to as USA-26, USA-28 and USA-49, USA-90 by Keyspan and within this driver. */
+#include "keyspan_usa26msg.h"
+#include "keyspan_usa28msg.h"
+#include "keyspan_usa49msg.h"
+#include "keyspan_usa90msg.h"
+
+
+/* Functions used by new usb-serial code. */
+static int __init keyspan_init (void)
+{
+ int retval;
+ retval = usb_serial_register(&keyspan_pre_device);
+ if (retval)
+ goto failed_pre_device_register;
+ retval = usb_serial_register(&keyspan_1port_device);
+ if (retval)
+ goto failed_1port_device_register;
+ retval = usb_serial_register(&keyspan_2port_device);
+ if (retval)
+ goto failed_2port_device_register;
+ retval = usb_serial_register(&keyspan_4port_device);
+ if (retval)
+ goto failed_4port_device_register;
+ retval = usb_register(&keyspan_driver);
+ if (retval)
+ goto failed_usb_register;
+
+ info(DRIVER_VERSION ":" DRIVER_DESC);
+
+ return 0;
+failed_usb_register:
+ usb_serial_deregister(&keyspan_4port_device);
+failed_4port_device_register:
+ usb_serial_deregister(&keyspan_2port_device);
+failed_2port_device_register:
+ usb_serial_deregister(&keyspan_1port_device);
+failed_1port_device_register:
+ usb_serial_deregister(&keyspan_pre_device);
+failed_pre_device_register:
+ return retval;
+}
+
+static void __exit keyspan_exit (void)
+{
+ usb_deregister (&keyspan_driver);
+ usb_serial_deregister (&keyspan_pre_device);
+ usb_serial_deregister (&keyspan_1port_device);
+ usb_serial_deregister (&keyspan_2port_device);
+ usb_serial_deregister (&keyspan_4port_device);
+}
+
+module_init(keyspan_init);
+module_exit(keyspan_exit);
+
+static void keyspan_rx_throttle (struct usb_serial_port *port)
+{
+ dbg("%s - port %d", __FUNCTION__, port->number);
+}
+
+
+static void keyspan_rx_unthrottle (struct usb_serial_port *port)
+{
+ dbg("%s - port %d", __FUNCTION__, port->number);
+}
+
+
+static void keyspan_break_ctl (struct usb_serial_port *port, int break_state)
+{
+ struct keyspan_port_private *p_priv;
+
+ dbg("%s", __FUNCTION__);
+
+ p_priv = usb_get_serial_port_data(port);
+
+ if (break_state == -1)
+ p_priv->break_on = 1;
+ else
+ p_priv->break_on = 0;
+
+ keyspan_send_setup(port, 0);
+}
+
+
+static void keyspan_set_termios (struct usb_serial_port *port,
+ struct termios *old_termios)
+{
+ int baud_rate, device_port;
+ struct keyspan_port_private *p_priv;
+ const struct keyspan_device_details *d_details;
+ unsigned int cflag;
+
+ dbg("%s", __FUNCTION__);
+
+ p_priv = usb_get_serial_port_data(port);
+ d_details = p_priv->device_details;
+ cflag = port->tty->termios->c_cflag;
+ device_port = port->number - port->serial->minor;
+
+ /* Baud rate calculation takes baud rate as an integer
+ so other rates can be generated if desired. */
+ baud_rate = tty_get_baud_rate(port->tty);
+ /* If no match or invalid, don't change */
+ if (baud_rate >= 0
+ && d_details->calculate_baud_rate(baud_rate, d_details->baudclk,
+ NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) {
+ /* FIXME - more to do here to ensure rate changes cleanly */
+ p_priv->baud = baud_rate;
+ }
+
+ /* set CTS/RTS handshake etc. */
+ p_priv->cflag = cflag;
+ p_priv->flow_control = (cflag & CRTSCTS)? flow_cts: flow_none;
+
+ keyspan_send_setup(port, 0);
+}
+
+static int keyspan_tiocmget(struct usb_serial_port *port, struct file *file)
+{
+ unsigned int value;
+ struct keyspan_port_private *p_priv;
+
+ p_priv = usb_get_serial_port_data(port);
+
+ value = ((p_priv->rts_state) ? TIOCM_RTS : 0) |
+ ((p_priv->dtr_state) ? TIOCM_DTR : 0) |
+ ((p_priv->cts_state) ? TIOCM_CTS : 0) |
+ ((p_priv->dsr_state) ? TIOCM_DSR : 0) |
+ ((p_priv->dcd_state) ? TIOCM_CAR : 0) |
+ ((p_priv->ri_state) ? TIOCM_RNG : 0);
+
+ return value;
+}
+
+static int keyspan_tiocmset(struct usb_serial_port *port, struct file *file,
+ unsigned int set, unsigned int clear)
+{
+ struct keyspan_port_private *p_priv;
+
+ p_priv = usb_get_serial_port_data(port);
+
+ if (set & TIOCM_RTS)
+ p_priv->rts_state = 1;
+ if (set & TIOCM_DTR)
+ p_priv->dtr_state = 1;
+
+ if (clear & TIOCM_RTS)
+ p_priv->rts_state = 0;
+ if (clear & TIOCM_DTR)
+ p_priv->dtr_state = 0;
+ keyspan_send_setup(port, 0);
+ return 0;
+}
+
+static int keyspan_ioctl(struct usb_serial_port *port, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ return -ENOIOCTLCMD;
+}
+
+ /* Write function is similar for the four protocols used
+ with only a minor change for usa90 (usa19hs) required */
+static int keyspan_write(struct usb_serial_port *port,
+ const unsigned char *buf, int count)
+{
+ struct keyspan_port_private *p_priv;
+ const struct keyspan_device_details *d_details;
+ int flip;
+ int left, todo;
+ struct urb *this_urb;
+ int err, maxDataLen, dataOffset;
+
+ p_priv = usb_get_serial_port_data(port);
+ d_details = p_priv->device_details;
+
+ if (d_details->msg_format == msg_usa90) {
+ maxDataLen = 64;
+ dataOffset = 0;
+ } else {
+ maxDataLen = 63;
+ dataOffset = 1;
+ }
+
+ dbg("%s - for port %d (%d chars), flip=%d",
+ __FUNCTION__, port->number, count, p_priv->out_flip);
+
+ for (left = count; left > 0; left -= todo) {
+ todo = left;
+ if (todo > maxDataLen)
+ todo = maxDataLen;
+
+ flip = p_priv->out_flip;
+
+ /* Check we have a valid urb/endpoint before we use it... */
+ if ((this_urb = p_priv->out_urbs[flip]) == NULL) {
+ /* no bulk out, so return 0 bytes written */
+ dbg("%s - no output urb :(", __FUNCTION__);
+ return count;
+ }
+
+ dbg("%s - endpoint %d flip %d", __FUNCTION__, usb_pipeendpoint(this_urb->pipe), flip);
+
+ if (this_urb->status == -EINPROGRESS) {
+ if (this_urb->transfer_flags & URB_ASYNC_UNLINK)
+ break;
+ if (time_before(jiffies, p_priv->tx_start_time[flip] + 10 * HZ))
+ break;
+ this_urb->transfer_flags |= URB_ASYNC_UNLINK;
+ usb_unlink_urb(this_urb);
+ break;
+ }
+
+ /* First byte in buffer is "last flag" (except for usa19hx) - unused so
+ for now so set to zero */
+ ((char *)this_urb->transfer_buffer)[0] = 0;
+
+ memcpy (this_urb->transfer_buffer + dataOffset, buf, todo);
+ buf += todo;
+
+ /* send the data out the bulk port */
+ this_urb->transfer_buffer_length = todo + dataOffset;
+
+ this_urb->transfer_flags &= ~URB_ASYNC_UNLINK;
+ this_urb->dev = port->serial->dev;
+ if ((err = usb_submit_urb(this_urb, GFP_ATOMIC)) != 0) {
+ dbg("usb_submit_urb(write bulk) failed (%d)", err);
+ }
+ p_priv->tx_start_time[flip] = jiffies;
+
+ /* Flip for next time if usa26 or usa28 interface
+ (not used on usa49) */
+ p_priv->out_flip = (flip + 1) & d_details->outdat_endp_flip;
+ }
+
+ return count - left;
+}
+
+static void usa26_indat_callback(struct urb *urb, struct pt_regs *regs)
+{
+ int i, err;
+ int endpoint;
+ struct usb_serial_port *port;
+ struct tty_struct *tty;
+ unsigned char *data = urb->transfer_buffer;
+
+ dbg ("%s", __FUNCTION__);
+
+ endpoint = usb_pipeendpoint(urb->pipe);
+
+ if (urb->status) {
+ dbg("%s - nonzero status: %x on endpoint %d.",
+ __FUNCTION__, urb->status, endpoint);
+ return;
+ }
+
+ port = (struct usb_serial_port *) urb->context;
+ tty = port->tty;
+ if (urb->actual_length) {
+ /* 0x80 bit is error flag */
+ if ((data[0] & 0x80) == 0) {
+ /* no errors on individual bytes, only possible overrun err*/
+ if (data[0] & RXERROR_OVERRUN)
+ err = TTY_OVERRUN;
+ else err = 0;
+ for (i = 1; i < urb->actual_length ; ++i) {
+ tty_insert_flip_char(tty, data[i], err);
+ }
+ } else {
+ /* some bytes had errors, every byte has status */
+ dbg("%s - RX error!!!!", __FUNCTION__);
+ for (i = 0; i + 1 < urb->actual_length; i += 2) {
+ int stat = data[i], flag = 0;
+ if (stat & RXERROR_OVERRUN)
+ flag |= TTY_OVERRUN;
+ if (stat & RXERROR_FRAMING)
+ flag |= TTY_FRAME;
+ if (stat & RXERROR_PARITY)
+ flag |= TTY_PARITY;
+ /* XXX should handle break (0x10) */
+ tty_insert_flip_char(tty, data[i+1], flag);
+ }
+ }
+ tty_flip_buffer_push(tty);
+ }
+
+ /* Resubmit urb so we continue receiving */
+ urb->dev = port->serial->dev;
+ if (port->open_count)
+ if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) {
+ dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err);
+ }
+ return;
+}
+
+ /* Outdat handling is common for all devices */
+static void usa2x_outdat_callback(struct urb *urb, struct pt_regs *regs)
+{
+ struct usb_serial_port *port;
+ struct keyspan_port_private *p_priv;
+
+ port = (struct usb_serial_port *) urb->context;
+ p_priv = usb_get_serial_port_data(port);
+ dbg ("%s - urb %d", __FUNCTION__, urb == p_priv->out_urbs[1]);
+
+ if (port->open_count)
+ schedule_work(&port->work);
+}
+
+static void usa26_inack_callback(struct urb *urb, struct pt_regs *regs)
+{
+ dbg ("%s", __FUNCTION__);
+
+}
+
+static void usa26_outcont_callback(struct urb *urb, struct pt_regs *regs)
+{
+ struct usb_serial_port *port;
+ struct keyspan_port_private *p_priv;
+
+ port = (struct usb_serial_port *) urb->context;
+ p_priv = usb_get_serial_port_data(port);
+
+ if (p_priv->resend_cont) {
+ dbg ("%s - sending setup", __FUNCTION__);
+ keyspan_usa26_send_setup(port->serial, port, p_priv->resend_cont - 1);
+ }
+}
+
+static void usa26_instat_callback(struct urb *urb, struct pt_regs *regs)
+{
+ unsigned char *data = urb->transfer_buffer;
+ struct keyspan_usa26_portStatusMessage *msg;
+ struct usb_serial *serial;
+ struct usb_serial_port *port;
+ struct keyspan_port_private *p_priv;
+ int old_dcd_state, err;
+
+ serial = (struct usb_serial *) urb->context;
+
+ if (urb->status) {
+ dbg("%s - nonzero status: %x", __FUNCTION__, urb->status);
+ return;
+ }
+ if (urb->actual_length != 9) {
+ dbg("%s - %d byte report??", __FUNCTION__, urb->actual_length);
+ goto exit;
+ }
+
+ msg = (struct keyspan_usa26_portStatusMessage *)data;
+
+#if 0
+ dbg("%s - port status: port %d cts %d dcd %d dsr %d ri %d toff %d txoff %d rxen %d cr %d",
+ __FUNCTION__, msg->port, msg->hskia_cts, msg->gpia_dcd, msg->dsr, msg->ri, msg->_txOff,
+ msg->_txXoff, msg->rxEnabled, msg->controlResponse);
+#endif
+
+ /* Now do something useful with the data */
+
+
+ /* Check port number from message and retrieve private data */
+ if (msg->port >= serial->num_ports) {
+ dbg ("%s - Unexpected port number %d", __FUNCTION__, msg->port);
+ goto exit;
+ }
+ port = serial->port[msg->port];
+ p_priv = usb_get_serial_port_data(port);
+
+ /* Update handshaking pin state information */
+ old_dcd_state = p_priv->dcd_state;
+ p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0);
+ p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
+ p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0);
+ p_priv->ri_state = ((msg->ri) ? 1 : 0);
+
+ if (port->tty && !C_CLOCAL(port->tty)
+ && old_dcd_state != p_priv->dcd_state) {
+ if (old_dcd_state)
+ tty_hangup(port->tty);
+ /* else */
+ /* wake_up_interruptible(&p_priv->open_wait); */
+ }
+
+ /* Resubmit urb so we continue receiving */
+ urb->dev = serial->dev;
+ if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) {
+ dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err);
+ }
+exit: ;
+}
+
+static void usa26_glocont_callback(struct urb *urb, struct pt_regs *regs)
+{
+ dbg ("%s", __FUNCTION__);
+
+}
+
+
+static void usa28_indat_callback(struct urb *urb, struct pt_regs *regs)
+{
+ int i, err;
+ struct usb_serial_port *port;
+ struct tty_struct *tty;
+ unsigned char *data;
+ struct keyspan_port_private *p_priv;
+
+ dbg ("%s", __FUNCTION__);
+
+ port = (struct usb_serial_port *) urb->context;
+ p_priv = usb_get_serial_port_data(port);
+ data = urb->transfer_buffer;
+
+ if (urb != p_priv->in_urbs[p_priv->in_flip])
+ return;
+
+ do {
+ if (urb->status) {
+ dbg("%s - nonzero status: %x on endpoint %d.",
+ __FUNCTION__, urb->status, usb_pipeendpoint(urb->pipe));
+ return;
+ }
+
+ port = (struct usb_serial_port *) urb->context;
+ p_priv = usb_get_serial_port_data(port);
+ data = urb->transfer_buffer;
+
+ tty = port->tty;
+ if (urb->actual_length) {
+ for (i = 0; i < urb->actual_length ; ++i) {
+ tty_insert_flip_char(tty, data[i], 0);
+ }
+ tty_flip_buffer_push(tty);
+ }
+
+ /* Resubmit urb so we continue receiving */
+ urb->dev = port->serial->dev;
+ if (port->open_count)
+ if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) {
+ dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err);
+ }
+ p_priv->in_flip ^= 1;
+
+ urb = p_priv->in_urbs[p_priv->in_flip];
+ } while (urb->status != -EINPROGRESS);
+}
+
+static void usa28_inack_callback(struct urb *urb, struct pt_regs *regs)
+{
+ dbg ("%s", __FUNCTION__);
+}
+
+static void usa28_outcont_callback(struct urb *urb, struct pt_regs *regs)
+{
+ struct usb_serial_port *port;
+ struct keyspan_port_private *p_priv;
+
+ port = (struct usb_serial_port *) urb->context;
+ p_priv = usb_get_serial_port_data(port);
+
+ if (p_priv->resend_cont) {
+ dbg ("%s - sending setup", __FUNCTION__);
+ keyspan_usa28_send_setup(port->serial, port, p_priv->resend_cont - 1);
+ }
+}
+
+static void usa28_instat_callback(struct urb *urb, struct pt_regs *regs)
+{
+ int err;
+ unsigned char *data = urb->transfer_buffer;
+ struct keyspan_usa28_portStatusMessage *msg;
+ struct usb_serial *serial;
+ struct usb_serial_port *port;
+ struct keyspan_port_private *p_priv;
+ int old_dcd_state;
+
+ serial = (struct usb_serial *) urb->context;
+
+ if (urb->status) {
+ dbg("%s - nonzero status: %x", __FUNCTION__, urb->status);
+ return;
+ }
+
+ if (urb->actual_length != sizeof(struct keyspan_usa28_portStatusMessage)) {
+ dbg("%s - bad length %d", __FUNCTION__, urb->actual_length);
+ goto exit;
+ }
+
+ /*dbg("%s %x %x %x %x %x %x %x %x %x %x %x %x", __FUNCTION__
+ data[0], data[1], data[2], data[3], data[4], data[5],
+ data[6], data[7], data[8], data[9], data[10], data[11]);*/
+
+ /* Now do something useful with the data */
+ msg = (struct keyspan_usa28_portStatusMessage *)data;
+
+
+ /* Check port number from message and retrieve private data */
+ if (msg->port >= serial->num_ports) {
+ dbg ("%s - Unexpected port number %d", __FUNCTION__, msg->port);
+ goto exit;
+ }
+ port = serial->port[msg->port];
+ p_priv = usb_get_serial_port_data(port);
+
+ /* Update handshaking pin state information */
+ old_dcd_state = p_priv->dcd_state;
+ p_priv->cts_state = ((msg->cts) ? 1 : 0);
+ p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
+ p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
+ p_priv->ri_state = ((msg->ri) ? 1 : 0);
+
+ if (port->tty && !C_CLOCAL(port->tty)
+ && old_dcd_state != p_priv->dcd_state) {
+ if (old_dcd_state)
+ tty_hangup(port->tty);
+ /* else */
+ /* wake_up_interruptible(&p_priv->open_wait); */
+ }
+
+ /* Resubmit urb so we continue receiving */
+ urb->dev = serial->dev;
+ if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) {
+ dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err);
+ }
+exit: ;
+}
+
+static void usa28_glocont_callback(struct urb *urb, struct pt_regs *regs)
+{
+ dbg ("%s", __FUNCTION__);
+}
+
+
+static void usa49_glocont_callback(struct urb *urb, struct pt_regs *regs)
+{
+ struct usb_serial *serial;
+ struct usb_serial_port *port;
+ struct keyspan_port_private *p_priv;
+ int i;
+
+ dbg ("%s", __FUNCTION__);
+
+ serial = (struct usb_serial *) urb->context;
+ for (i = 0; i < serial->num_ports; ++i) {
+ port = serial->port[i];
+ p_priv = usb_get_serial_port_data(port);
+
+ if (p_priv->resend_cont) {
+ dbg ("%s - sending setup", __FUNCTION__);
+ keyspan_usa49_send_setup(serial, port, p_priv->resend_cont - 1);
+ break;
+ }
+ }
+}
+
+ /* This is actually called glostat in the Keyspan
+ doco */
+static void usa49_instat_callback(struct urb *urb, struct pt_regs *regs)
+{
+ int err;
+ unsigned char *data = urb->transfer_buffer;
+ struct keyspan_usa49_portStatusMessage *msg;
+ struct usb_serial *serial;
+ struct usb_serial_port *port;
+ struct keyspan_port_private *p_priv;
+ int old_dcd_state;
+
+ dbg ("%s", __FUNCTION__);
+
+ serial = (struct usb_serial *) urb->context;
+
+ if (urb->status) {
+ dbg("%s - nonzero status: %x", __FUNCTION__, urb->status);
+ return;
+ }
+
+ if (urb->actual_length != sizeof(struct keyspan_usa49_portStatusMessage)) {
+ dbg("%s - bad length %d", __FUNCTION__, urb->actual_length);
+ goto exit;
+ }
+
+ /*dbg(" %x %x %x %x %x %x %x %x %x %x %x", __FUNCTION__,
+ data[0], data[1], data[2], data[3], data[4], data[5],
+ data[6], data[7], data[8], data[9], data[10]);*/
+
+ /* Now do something useful with the data */
+ msg = (struct keyspan_usa49_portStatusMessage *)data;
+
+ /* Check port number from message and retrieve private data */
+ if (msg->portNumber >= serial->num_ports) {
+ dbg ("%s - Unexpected port number %d", __FUNCTION__, msg->portNumber);
+ goto exit;
+ }
+ port = serial->port[msg->portNumber];
+ p_priv = usb_get_serial_port_data(port);
+
+ /* Update handshaking pin state information */
+ old_dcd_state = p_priv->dcd_state;
+ p_priv->cts_state = ((msg->cts) ? 1 : 0);
+ p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
+ p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
+ p_priv->ri_state = ((msg->ri) ? 1 : 0);
+
+ if (port->tty && !C_CLOCAL(port->tty)
+ && old_dcd_state != p_priv->dcd_state) {
+ if (old_dcd_state)
+ tty_hangup(port->tty);
+ /* else */
+ /* wake_up_interruptible(&p_priv->open_wait); */
+ }
+
+ /* Resubmit urb so we continue receiving */
+ urb->dev = serial->dev;
+
+ if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) {
+ dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err);
+ }
+exit: ;
+}
+
+static void usa49_inack_callback(struct urb *urb, struct pt_regs *regs)
+{
+ dbg ("%s", __FUNCTION__);
+}
+
+static void usa49_indat_callback(struct urb *urb, struct pt_regs *regs)
+{
+ int i, err;
+ int endpoint;
+ struct usb_serial_port *port;
+ struct tty_struct *tty;
+ unsigned char *data = urb->transfer_buffer;
+
+ dbg ("%s", __FUNCTION__);
+
+ endpoint = usb_pipeendpoint(urb->pipe);
+
+ if (urb->status) {
+ dbg("%s - nonzero status: %x on endpoint %d.", __FUNCTION__,
+ urb->status, endpoint);
+ return;
+ }
+
+ port = (struct usb_serial_port *) urb->context;
+ tty = port->tty;
+ if (urb->actual_length) {
+ /* 0x80 bit is error flag */
+ if ((data[0] & 0x80) == 0) {
+ /* no error on any byte */
+ for (i = 1; i < urb->actual_length ; ++i) {
+ tty_insert_flip_char(tty, data[i], 0);
+ }
+ } else {
+ /* some bytes had errors, every byte has status */
+ for (i = 0; i + 1 < urb->actual_length; i += 2) {
+ int stat = data[i], flag = 0;
+ if (stat & RXERROR_OVERRUN)
+ flag |= TTY_OVERRUN;
+ if (stat & RXERROR_FRAMING)
+ flag |= TTY_FRAME;
+ if (stat & RXERROR_PARITY)
+ flag |= TTY_PARITY;
+ /* XXX should handle break (0x10) */
+ tty_insert_flip_char(tty, data[i+1], flag);
+ }
+ }
+ tty_flip_buffer_push(tty);
+ }
+
+ /* Resubmit urb so we continue receiving */
+ urb->dev = port->serial->dev;
+ if (port->open_count)
+ if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) {
+ dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err);
+ }
+}
+
+/* not used, usa-49 doesn't have per-port control endpoints */
+static void usa49_outcont_callback(struct urb *urb, struct pt_regs *regs)
+{
+ dbg ("%s", __FUNCTION__);
+}
+
+static void usa90_indat_callback(struct urb *urb, struct pt_regs *regs)
+{
+ int i, err;
+ int endpoint;
+ struct usb_serial_port *port;
+ struct keyspan_port_private *p_priv;
+ struct tty_struct *tty;
+ unsigned char *data = urb->transfer_buffer;
+
+ dbg ("%s", __FUNCTION__);
+
+ endpoint = usb_pipeendpoint(urb->pipe);
+
+
+ if (urb->status) {
+ dbg("%s - nonzero status: %x on endpoint %d.",
+ __FUNCTION__, urb->status, endpoint);
+ return;
+ }
+
+ port = (struct usb_serial_port *) urb->context;
+ p_priv = usb_get_serial_port_data(port);
+
+ tty = port->tty;
+ if (urb->actual_length) {
+
+ /* if current mode is DMA, looks like usa28 format
+ otherwise looks like usa26 data format */
+
+ if (p_priv->baud > 57600) {
+ for (i = 0; i < urb->actual_length ; ++i)
+ tty_insert_flip_char(tty, data[i], 0);
+ }
+ else {
+
+ /* 0x80 bit is error flag */
+ if ((data[0] & 0x80) == 0) {
+ /* no errors on individual bytes, only possible overrun err*/
+ if (data[0] & RXERROR_OVERRUN)
+ err = TTY_OVERRUN;
+ else err = 0;
+ for (i = 1; i < urb->actual_length ; ++i)
+ tty_insert_flip_char(tty, data[i], err);
+
+ }
+ else {
+ /* some bytes had errors, every byte has status */
+ dbg("%s - RX error!!!!", __FUNCTION__);
+ for (i = 0; i + 1 < urb->actual_length; i += 2) {
+ int stat = data[i], flag = 0;
+ if (stat & RXERROR_OVERRUN)
+ flag |= TTY_OVERRUN;
+ if (stat & RXERROR_FRAMING)
+ flag |= TTY_FRAME;
+ if (stat & RXERROR_PARITY)
+ flag |= TTY_PARITY;
+ /* XXX should handle break (0x10) */
+ tty_insert_flip_char(tty, data[i+1], flag);
+ }
+ }
+ }
+ tty_flip_buffer_push(tty);
+ }
+
+ /* Resubmit urb so we continue receiving */
+ urb->dev = port->serial->dev;
+ if (port->open_count)
+ if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) {
+ dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err);
+ }
+ return;
+}
+
+
+static void usa90_instat_callback(struct urb *urb, struct pt_regs *regs)
+{
+ unsigned char *data = urb->transfer_buffer;
+ struct keyspan_usa90_portStatusMessage *msg;
+ struct usb_serial *serial;
+ struct usb_serial_port *port;
+ struct keyspan_port_private *p_priv;
+ int old_dcd_state, err;
+
+ serial = (struct usb_serial *) urb->context;
+
+ if (urb->status) {
+ dbg("%s - nonzero status: %x", __FUNCTION__, urb->status);
+ return;
+ }
+ if (urb->actual_length < 14) {
+ dbg("%s - %d byte report??", __FUNCTION__, urb->actual_length);
+ goto exit;
+ }
+
+ msg = (struct keyspan_usa90_portStatusMessage *)data;
+
+ /* Now do something useful with the data */
+
+ port = serial->port[0];
+ p_priv = usb_get_serial_port_data(port);
+
+ /* Update handshaking pin state information */
+ old_dcd_state = p_priv->dcd_state;
+ p_priv->cts_state = ((msg->cts) ? 1 : 0);
+ p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
+ p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
+ p_priv->ri_state = ((msg->ri) ? 1 : 0);
+
+ if (port->tty && !C_CLOCAL(port->tty)
+ && old_dcd_state != p_priv->dcd_state) {
+ if (old_dcd_state)
+ tty_hangup(port->tty);
+ /* else */
+ /* wake_up_interruptible(&p_priv->open_wait); */
+ }
+
+ /* Resubmit urb so we continue receiving */
+ urb->dev = serial->dev;
+ if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) {
+ dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err);
+ }
+exit:
+ ;
+}
+
+static void usa90_outcont_callback(struct urb *urb, struct pt_regs *regs)
+{
+ struct usb_serial_port *port;
+ struct keyspan_port_private *p_priv;
+
+ port = (struct usb_serial_port *) urb->context;
+ p_priv = usb_get_serial_port_data(port);
+
+ if (p_priv->resend_cont) {
+ dbg ("%s - sending setup", __FUNCTION__);
+ keyspan_usa90_send_setup(port->serial, port, p_priv->resend_cont - 1);
+ }
+}
+
+static int keyspan_write_room (struct usb_serial_port *port)
+{
+ struct keyspan_port_private *p_priv;
+ const struct keyspan_device_details *d_details;
+ int flip;
+ int data_len;
+ struct urb *this_urb;
+
+ dbg("%s", __FUNCTION__);
+ p_priv = usb_get_serial_port_data(port);
+ d_details = p_priv->device_details;
+
+ if (d_details->msg_format == msg_usa90)
+ data_len = 64;
+ else
+ data_len = 63;
+
+ flip = p_priv->out_flip;
+
+ /* Check both endpoints to see if any are available. */
+ if ((this_urb = p_priv->out_urbs[flip]) != NULL) {
+ if (this_urb->status != -EINPROGRESS)
+ return (data_len);
+ flip = (flip + 1) & d_details->outdat_endp_flip;
+ if ((this_urb = p_priv->out_urbs[flip]) != NULL)
+ if (this_urb->status != -EINPROGRESS)
+ return (data_len);
+ }
+ return (0);
+}
+
+
+static int keyspan_chars_in_buffer (struct usb_serial_port *port)
+{
+ return (0);
+}
+
+
+static int keyspan_open (struct usb_serial_port *port, struct file *filp)
+{
+ struct keyspan_port_private *p_priv;
+ struct keyspan_serial_private *s_priv;
+ struct usb_serial *serial = port->serial;
+ const struct keyspan_device_details *d_details;
+ int i, err;
+ int baud_rate, device_port;
+ struct urb *urb;
+ unsigned int cflag;
+
+ s_priv = usb_get_serial_data(serial);
+ p_priv = usb_get_serial_port_data(port);
+ d_details = p_priv->device_details;
+
+ dbg("%s - port%d.", __FUNCTION__, port->number);
+
+ /* Set some sane defaults */
+ p_priv->rts_state = 1;
+ p_priv->dtr_state = 1;
+ p_priv->baud = 9600;
+
+ /* force baud and lcr to be set on open */
+ p_priv->old_baud = 0;
+ p_priv->old_cflag = 0;
+
+ p_priv->out_flip = 0;
+ p_priv->in_flip = 0;
+
+ /* Reset low level data toggle and start reading from endpoints */
+ for (i = 0; i < 2; i++) {
+ if ((urb = p_priv->in_urbs[i]) == NULL)
+ continue;
+ urb->dev = serial->dev;
+
+ /* make sure endpoint data toggle is synchronized with the device */
+
+ usb_clear_halt(urb->dev, urb->pipe);
+
+ if ((err = usb_submit_urb(urb, GFP_KERNEL)) != 0) {
+ dbg("%s - submit urb %d failed (%d)", __FUNCTION__, i, err);
+ }
+ }
+
+ /* Reset low level data toggle on out endpoints */
+ for (i = 0; i < 2; i++) {
+ if ((urb = p_priv->out_urbs[i]) == NULL)
+ continue;
+ urb->dev = serial->dev;
+ /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), usb_pipeout(urb->pipe), 0); */
+ }
+
+ /* get the terminal config for the setup message now so we don't
+ * need to send 2 of them */
+
+ cflag = port->tty->termios->c_cflag;
+ device_port = port->number - port->serial->minor;
+
+ /* Baud rate calculation takes baud rate as an integer
+ so other rates can be generated if desired. */
+ baud_rate = tty_get_baud_rate(port->tty);
+ /* If no match or invalid, leave as default */
+ if (baud_rate >= 0
+ && d_details->calculate_baud_rate(baud_rate, d_details->baudclk,
+ NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) {
+ p_priv->baud = baud_rate;
+ }
+
+ /* set CTS/RTS handshake etc. */
+ p_priv->cflag = cflag;
+ p_priv->flow_control = (cflag & CRTSCTS)? flow_cts: flow_none;
+
+ keyspan_send_setup(port, 1);
+ //mdelay(100);
+ //keyspan_set_termios(port, NULL);
+
+ return (0);
+}
+
+static inline void stop_urb(struct urb *urb)
+{
+ if (urb && urb->status == -EINPROGRESS) {
+ urb->transfer_flags &= ~URB_ASYNC_UNLINK;
+ usb_kill_urb(urb);
+ }
+}
+
+static void keyspan_close(struct usb_serial_port *port, struct file *filp)
+{
+ int i;
+ struct usb_serial *serial = port->serial;
+ struct keyspan_serial_private *s_priv;
+ struct keyspan_port_private *p_priv;
+
+ dbg("%s", __FUNCTION__);
+ s_priv = usb_get_serial_data(serial);
+ p_priv = usb_get_serial_port_data(port);
+
+ p_priv->rts_state = 0;
+ p_priv->dtr_state = 0;
+
+ if (serial->dev) {
+ keyspan_send_setup(port, 2);
+ /* pilot-xfer seems to work best with this delay */
+ mdelay(100);
+ // keyspan_set_termios(port, NULL);
+ }
+
+ /*while (p_priv->outcont_urb->status == -EINPROGRESS) {
+ dbg("%s - urb in progress", __FUNCTION__);
+ }*/
+
+ p_priv->out_flip = 0;
+ p_priv->in_flip = 0;
+
+ if (serial->dev) {
+ /* Stop reading/writing urbs */
+ stop_urb(p_priv->inack_urb);
+ /* stop_urb(p_priv->outcont_urb); */
+ for (i = 0; i < 2; i++) {
+ stop_urb(p_priv->in_urbs[i]);
+ stop_urb(p_priv->out_urbs[i]);
+ }
+ }
+ port->tty = NULL;
+}
+
+
+ /* download the firmware to a pre-renumeration device */
+static int keyspan_fake_startup (struct usb_serial *serial)
+{
+ int response;
+ const struct ezusb_hex_record *record;
+ char *fw_name;
+
+ dbg("Keyspan startup version %04x product %04x",
+ le16_to_cpu(serial->dev->descriptor.bcdDevice),
+ le16_to_cpu(serial->dev->descriptor.idProduct));
+
+ if ((le16_to_cpu(serial->dev->descriptor.bcdDevice) & 0x8000) != 0x8000) {
+ dbg("Firmware already loaded. Quitting.");
+ return(1);
+ }
+
+ /* Select firmware image on the basis of idProduct */
+ switch (le16_to_cpu(serial->dev->descriptor.idProduct)) {
+ case keyspan_usa28_pre_product_id:
+ record = &keyspan_usa28_firmware[0];
+ fw_name = "USA28";
+ break;
+
+ case keyspan_usa28x_pre_product_id:
+ record = &keyspan_usa28x_firmware[0];
+ fw_name = "USA28X";
+ break;
+
+ case keyspan_usa28xa_pre_product_id:
+ record = &keyspan_usa28xa_firmware[0];
+ fw_name = "USA28XA";
+ break;
+
+ case keyspan_usa28xb_pre_product_id:
+ record = &keyspan_usa28xb_firmware[0];
+ fw_name = "USA28XB";
+ break;
+
+ case keyspan_usa19_pre_product_id:
+ record = &keyspan_usa19_firmware[0];
+ fw_name = "USA19";
+ break;
+
+ case keyspan_usa19qi_pre_product_id:
+ record = &keyspan_usa19qi_firmware[0];
+ fw_name = "USA19QI";
+ break;
+
+ case keyspan_mpr_pre_product_id:
+ record = &keyspan_mpr_firmware[0];
+ fw_name = "MPR";
+ break;
+
+ case keyspan_usa19qw_pre_product_id:
+ record = &keyspan_usa19qw_firmware[0];
+ fw_name = "USA19QI";
+ break;
+
+ case keyspan_usa18x_pre_product_id:
+ record = &keyspan_usa18x_firmware[0];
+ fw_name = "USA18X";
+ break;
+
+ case keyspan_usa19w_pre_product_id:
+ record = &keyspan_usa19w_firmware[0];
+ fw_name = "USA19W";
+ break;
+
+ case keyspan_usa49w_pre_product_id:
+ record = &keyspan_usa49w_firmware[0];
+ fw_name = "USA49W";
+ break;
+
+ case keyspan_usa49wlc_pre_product_id:
+ record = &keyspan_usa49wlc_firmware[0];
+ fw_name = "USA49WLC";
+ break;
+
+ default:
+ record = NULL;
+ fw_name = "Unknown";
+ break;
+ }
+
+ if (record == NULL) {
+ dev_err(&serial->dev->dev, "Required keyspan firmware image (%s) unavailable.\n", fw_name);
+ return(1);
+ }
+
+ dbg("Uploading Keyspan %s firmware.", fw_name);
+
+ /* download the firmware image */
+ response = ezusb_set_reset(serial, 1);
+
+ while(record->address != 0xffff) {
+ response = ezusb_writememory(serial, record->address,
+ (unsigned char *)record->data,
+ record->data_size, 0xa0);
+ if (response < 0) {
+ dev_err(&serial->dev->dev, "ezusb_writememory failed for Keyspan"
+ "firmware (%d %04X %p %d)\n",
+ response,
+ record->address, record->data, record->data_size);
+ break;
+ }
+ record++;
+ }
+ /* bring device out of reset. Renumeration will occur in a
+ moment and the new device will bind to the real driver */
+ response = ezusb_set_reset(serial, 0);
+
+ /* we don't want this device to have a driver assigned to it. */
+ return (1);
+}
+
+/* Helper functions used by keyspan_setup_urbs */
+static struct urb *keyspan_setup_urb (struct usb_serial *serial, int endpoint,
+ int dir, void *ctx, char *buf, int len,
+ void (*callback)(struct urb *, struct pt_regs *regs))
+{
+ struct urb *urb;
+
+ if (endpoint == -1)
+ return NULL; /* endpoint not needed */
+
+ dbg ("%s - alloc for endpoint %d.", __FUNCTION__, endpoint);
+ urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */
+ if (urb == NULL) {
+ dbg ("%s - alloc for endpoint %d failed.", __FUNCTION__, endpoint);
+ return NULL;
+ }
+
+ /* Fill URB using supplied data. */
+ usb_fill_bulk_urb(urb, serial->dev,
+ usb_sndbulkpipe(serial->dev, endpoint) | dir,
+ buf, len, callback, ctx);
+
+ return urb;
+}
+
+static struct callbacks {
+ void (*instat_callback)(struct urb *, struct pt_regs *regs);
+ void (*glocont_callback)(struct urb *, struct pt_regs *regs);
+ void (*indat_callback)(struct urb *, struct pt_regs *regs);
+ void (*outdat_callback)(struct urb *, struct pt_regs *regs);
+ void (*inack_callback)(struct urb *, struct pt_regs *regs);
+ void (*outcont_callback)(struct urb *, struct pt_regs *regs);
+} keyspan_callbacks[] = {
+ {
+ /* msg_usa26 callbacks */
+ .instat_callback = usa26_instat_callback,
+ .glocont_callback = usa26_glocont_callback,
+ .indat_callback = usa26_indat_callback,
+ .outdat_callback = usa2x_outdat_callback,
+ .inack_callback = usa26_inack_callback,
+ .outcont_callback = usa26_outcont_callback,
+ }, {
+ /* msg_usa28 callbacks */
+ .instat_callback = usa28_instat_callback,
+ .glocont_callback = usa28_glocont_callback,
+ .indat_callback = usa28_indat_callback,
+ .outdat_callback = usa2x_outdat_callback,
+ .inack_callback = usa28_inack_callback,
+ .outcont_callback = usa28_outcont_callback,
+ }, {
+ /* msg_usa49 callbacks */
+ .instat_callback = usa49_instat_callback,
+ .glocont_callback = usa49_glocont_callback,
+ .indat_callback = usa49_indat_callback,
+ .outdat_callback = usa2x_outdat_callback,
+ .inack_callback = usa49_inack_callback,
+ .outcont_callback = usa49_outcont_callback,
+ }, {
+ /* msg_usa90 callbacks */
+ .instat_callback = usa90_instat_callback,
+ .glocont_callback = usa28_glocont_callback,
+ .indat_callback = usa90_indat_callback,
+ .outdat_callback = usa2x_outdat_callback,
+ .inack_callback = usa28_inack_callback,
+ .outcont_callback = usa90_outcont_callback,
+ }
+};
+
+ /* Generic setup urbs function that uses
+ data in device_details */
+static void keyspan_setup_urbs(struct usb_serial *serial)
+{
+ int i, j;
+ struct keyspan_serial_private *s_priv;
+ const struct keyspan_device_details *d_details;
+ struct usb_serial_port *port;
+ struct keyspan_port_private *p_priv;
+ struct callbacks *cback;
+ int endp;
+
+ dbg ("%s", __FUNCTION__);
+
+ s_priv = usb_get_serial_data(serial);
+ d_details = s_priv->device_details;
+
+ /* Setup values for the various callback routines */
+ cback = &keyspan_callbacks[d_details->msg_format];
+
+ /* Allocate and set up urbs for each one that is in use,
+ starting with instat endpoints */
+ s_priv->instat_urb = keyspan_setup_urb
+ (serial, d_details->instat_endpoint, USB_DIR_IN,
+ serial, s_priv->instat_buf, INSTAT_BUFLEN,
+ cback->instat_callback);
+
+ s_priv->glocont_urb = keyspan_setup_urb
+ (serial, d_details->glocont_endpoint, USB_DIR_OUT,
+ serial, s_priv->glocont_buf, GLOCONT_BUFLEN,
+ cback->glocont_callback);
+
+ /* Setup endpoints for each port specific thing */
+ for (i = 0; i < d_details->num_ports; i ++) {
+ port = serial->port[i];
+ p_priv = usb_get_serial_port_data(port);
+
+ /* Do indat endpoints first, once for each flip */
+ endp = d_details->indat_endpoints[i];
+ for (j = 0; j <= d_details->indat_endp_flip; ++j, ++endp) {
+ p_priv->in_urbs[j] = keyspan_setup_urb
+ (serial, endp, USB_DIR_IN, port,
+ p_priv->in_buffer[j], 64,
+ cback->indat_callback);
+ }
+ for (; j < 2; ++j)
+ p_priv->in_urbs[j] = NULL;
+
+ /* outdat endpoints also have flip */
+ endp = d_details->outdat_endpoints[i];
+ for (j = 0; j <= d_details->outdat_endp_flip; ++j, ++endp) {
+ p_priv->out_urbs[j] = keyspan_setup_urb
+ (serial, endp, USB_DIR_OUT, port,
+ p_priv->out_buffer[j], 64,
+ cback->outdat_callback);
+ }
+ for (; j < 2; ++j)
+ p_priv->out_urbs[j] = NULL;
+
+ /* inack endpoint */
+ p_priv->inack_urb = keyspan_setup_urb
+ (serial, d_details->inack_endpoints[i], USB_DIR_IN,
+ port, p_priv->inack_buffer, 1, cback->inack_callback);
+
+ /* outcont endpoint */
+ p_priv->outcont_urb = keyspan_setup_urb
+ (serial, d_details->outcont_endpoints[i], USB_DIR_OUT,
+ port, p_priv->outcont_buffer, 64,
+ cback->outcont_callback);
+ }
+
+}
+
+/* usa19 function doesn't require prescaler */
+static int keyspan_usa19_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
+ u8 *rate_low, u8 *prescaler, int portnum)
+{
+ u32 b16, /* baud rate times 16 (actual rate used internally) */
+ div, /* divisor */
+ cnt; /* inverse of divisor (programmed into 8051) */
+
+ dbg ("%s - %d.", __FUNCTION__, baud_rate);
+
+ /* prevent divide by zero... */
+ if( (b16 = (baud_rate * 16L)) == 0) {
+ return (KEYSPAN_INVALID_BAUD_RATE);
+ }
+
+ /* Any "standard" rate over 57k6 is marginal on the USA-19
+ as we run out of divisor resolution. */
+ if (baud_rate > 57600) {
+ return (KEYSPAN_INVALID_BAUD_RATE);
+ }
+
+ /* calculate the divisor and the counter (its inverse) */
+ if( (div = (baudclk / b16)) == 0) {
+ return (KEYSPAN_INVALID_BAUD_RATE);
+ }
+ else {
+ cnt = 0 - div;
+ }
+
+ if(div > 0xffff) {
+ return (KEYSPAN_INVALID_BAUD_RATE);
+ }
+
+ /* return the counter values if non-null */
+ if (rate_low) {
+ *rate_low = (u8) (cnt & 0xff);
+ }
+ if (rate_hi) {
+ *rate_hi = (u8) ((cnt >> 8) & 0xff);
+ }
+ if (rate_low && rate_hi) {
+ dbg ("%s - %d %02x %02x.", __FUNCTION__, baud_rate, *rate_hi, *rate_low);
+ }
+
+ return (KEYSPAN_BAUD_RATE_OK);
+}
+
+/* usa19hs function doesn't require prescaler */
+static int keyspan_usa19hs_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
+ u8 *rate_low, u8 *prescaler, int portnum)
+{
+ u32 b16, /* baud rate times 16 (actual rate used internally) */
+ div; /* divisor */
+
+ dbg ("%s - %d.", __FUNCTION__, baud_rate);
+
+ /* prevent divide by zero... */
+ if( (b16 = (baud_rate * 16L)) == 0)
+ return (KEYSPAN_INVALID_BAUD_RATE);
+
+
+
+ /* calculate the divisor */
+ if( (div = (baudclk / b16)) == 0)
+ return (KEYSPAN_INVALID_BAUD_RATE);
+
+ if(div > 0xffff)
+ return (KEYSPAN_INVALID_BAUD_RATE);
+
+ /* return the counter values if non-null */
+ if (rate_low)
+ *rate_low = (u8) (div & 0xff);
+
+ if (rate_hi)
+ *rate_hi = (u8) ((div >> 8) & 0xff);
+
+ if (rate_low && rate_hi)
+ dbg ("%s - %d %02x %02x.", __FUNCTION__, baud_rate, *rate_hi, *rate_low);
+
+ return (KEYSPAN_BAUD_RATE_OK);
+}
+
+static int keyspan_usa19w_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
+ u8 *rate_low, u8 *prescaler, int portnum)
+{
+ u32 b16, /* baud rate times 16 (actual rate used internally) */
+ clk, /* clock with 13/8 prescaler */
+ div, /* divisor using 13/8 prescaler */
+ res, /* resulting baud rate using 13/8 prescaler */
+ diff, /* error using 13/8 prescaler */
+ smallest_diff;
+ u8 best_prescaler;
+ int i;
+
+ dbg ("%s - %d.", __FUNCTION__, baud_rate);
+
+ /* prevent divide by zero */
+ if( (b16 = baud_rate * 16L) == 0) {
+ return (KEYSPAN_INVALID_BAUD_RATE);
+ }
+
+ /* Calculate prescaler by trying them all and looking
+ for best fit */
+
+ /* start with largest possible difference */
+ smallest_diff = 0xffffffff;
+
+ /* 0 is an invalid prescaler, used as a flag */
+ best_prescaler = 0;
+
+ for(i = 8; i <= 0xff; ++i) {
+ clk = (baudclk * 8) / (u32) i;
+
+ if( (div = clk / b16) == 0) {
+ continue;
+ }
+
+ res = clk / div;
+ diff= (res > b16) ? (res-b16) : (b16-res);
+
+ if(diff < smallest_diff) {
+ best_prescaler = i;
+ smallest_diff = diff;
+ }
+ }
+
+ if(best_prescaler == 0) {
+ return (KEYSPAN_INVALID_BAUD_RATE);
+ }
+
+ clk = (baudclk * 8) / (u32) best_prescaler;
+ div = clk / b16;
+
+ /* return the divisor and prescaler if non-null */
+ if (rate_low) {
+ *rate_low = (u8) (div & 0xff);
+ }
+ if (rate_hi) {
+ *rate_hi = (u8) ((div >> 8) & 0xff);
+ }
+ if (prescaler) {
+ *prescaler = best_prescaler;
+ /* dbg("%s - %d %d", __FUNCTION__, *prescaler, div); */
+ }
+ return (KEYSPAN_BAUD_RATE_OK);
+}
+
+ /* USA-28 supports different maximum baud rates on each port */
+static int keyspan_usa28_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
+ u8 *rate_low, u8 *prescaler, int portnum)
+{
+ u32 b16, /* baud rate times 16 (actual rate used internally) */
+ div, /* divisor */
+ cnt; /* inverse of divisor (programmed into 8051) */
+
+ dbg ("%s - %d.", __FUNCTION__, baud_rate);
+
+ /* prevent divide by zero */
+ if ((b16 = baud_rate * 16L) == 0)
+ return (KEYSPAN_INVALID_BAUD_RATE);
+
+ /* calculate the divisor and the counter (its inverse) */
+ if ((div = (KEYSPAN_USA28_BAUDCLK / b16)) == 0) {
+ return (KEYSPAN_INVALID_BAUD_RATE);
+ }
+ else {
+ cnt = 0 - div;
+ }
+
+ /* check for out of range, based on portnum,
+ and return result */
+ if(portnum == 0) {
+ if(div > 0xffff)
+ return (KEYSPAN_INVALID_BAUD_RATE);
+ }
+ else {
+ if(portnum == 1) {
+ if(div > 0xff) {
+ return (KEYSPAN_INVALID_BAUD_RATE);
+ }
+ }
+ else {
+ return (KEYSPAN_INVALID_BAUD_RATE);
+ }
+ }
+
+ /* return the counter values if not NULL
+ (port 1 will ignore retHi) */
+ if (rate_low) {
+ *rate_low = (u8) (cnt & 0xff);
+ }
+ if (rate_hi) {
+ *rate_hi = (u8) ((cnt >> 8) & 0xff);
+ }
+ dbg ("%s - %d OK.", __FUNCTION__, baud_rate);
+ return (KEYSPAN_BAUD_RATE_OK);
+}
+
+static int keyspan_usa26_send_setup(struct usb_serial *serial,
+ struct usb_serial_port *port,
+ int reset_port)
+{
+ struct keyspan_usa26_portControlMessage msg;
+ struct keyspan_serial_private *s_priv;
+ struct keyspan_port_private *p_priv;
+ const struct keyspan_device_details *d_details;
+ int outcont_urb;
+ struct urb *this_urb;
+ int device_port, err;
+
+ dbg ("%s reset=%d", __FUNCTION__, reset_port);
+
+ s_priv = usb_get_serial_data(serial);
+ p_priv = usb_get_serial_port_data(port);
+ d_details = s_priv->device_details;
+ device_port = port->number - port->serial->minor;
+
+ outcont_urb = d_details->outcont_endpoints[port->number];
+ this_urb = p_priv->outcont_urb;
+
+ dbg("%s - endpoint %d", __FUNCTION__, usb_pipeendpoint(this_urb->pipe));
+
+ /* Make sure we have an urb then send the message */
+ if (this_urb == NULL) {
+ dbg("%s - oops no urb.", __FUNCTION__);
+ return -1;
+ }
+
+ /* Save reset port val for resend.
+ Don't overwrite resend for close condition. */
+ if (p_priv->resend_cont != 3)
+ p_priv->resend_cont = reset_port + 1;
+ if (this_urb->status == -EINPROGRESS) {
+ /* dbg ("%s - already writing", __FUNCTION__); */
+ mdelay(5);
+ return(-1);
+ }
+
+ memset(&msg, 0, sizeof (struct keyspan_usa26_portControlMessage));
+
+ /* Only set baud rate if it's changed */
+ if (p_priv->old_baud != p_priv->baud) {
+ p_priv->old_baud = p_priv->baud;
+ msg.setClocking = 0xff;
+ if (d_details->calculate_baud_rate
+ (p_priv->baud, d_details->baudclk, &msg.baudHi,
+ &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE ) {
+ dbg("%s - Invalid baud rate %d requested, using 9600.", __FUNCTION__,
+ p_priv->baud);
+ msg.baudLo = 0;
+ msg.baudHi = 125; /* Values for 9600 baud */
+ msg.prescaler = 10;
+ }
+ msg.setPrescaler = 0xff;
+ }
+
+ msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1;
+ switch (p_priv->cflag & CSIZE) {
+ case CS5:
+ msg.lcr |= USA_DATABITS_5;
+ break;
+ case CS6:
+ msg.lcr |= USA_DATABITS_6;
+ break;
+ case CS7:
+ msg.lcr |= USA_DATABITS_7;
+ break;
+ case CS8:
+ msg.lcr |= USA_DATABITS_8;
+ break;
+ }
+ if (p_priv->cflag & PARENB) {
+ /* note USA_PARITY_NONE == 0 */
+ msg.lcr |= (p_priv->cflag & PARODD)?
+ USA_PARITY_ODD: USA_PARITY_EVEN;
+ }
+ msg.setLcr = 0xff;
+
+ msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
+ msg.xonFlowControl = 0;
+ msg.setFlowControl = 0xff;
+ msg.forwardingLength = 16;
+ msg.xonChar = 17;
+ msg.xoffChar = 19;
+
+ /* Opening port */
+ if (reset_port == 1) {
+ msg._txOn = 1;
+ msg._txOff = 0;
+ msg.txFlush = 0;
+ msg.txBreak = 0;
+ msg.rxOn = 1;
+ msg.rxOff = 0;
+ msg.rxFlush = 1;
+ msg.rxForward = 0;
+ msg.returnStatus = 0;
+ msg.resetDataToggle = 0xff;
+ }
+
+ /* Closing port */
+ else if (reset_port == 2) {
+ msg._txOn = 0;
+ msg._txOff = 1;
+ msg.txFlush = 0;
+ msg.txBreak = 0;
+ msg.rxOn = 0;
+ msg.rxOff = 1;
+ msg.rxFlush = 1;
+ msg.rxForward = 0;
+ msg.returnStatus = 0;
+ msg.resetDataToggle = 0;
+ }
+
+ /* Sending intermediate configs */
+ else {
+ msg._txOn = (! p_priv->break_on);
+ msg._txOff = 0;
+ msg.txFlush = 0;
+ msg.txBreak = (p_priv->break_on);
+ msg.rxOn = 0;
+ msg.rxOff = 0;
+ msg.rxFlush = 0;
+ msg.rxForward = 0;
+ msg.returnStatus = 0;
+ msg.resetDataToggle = 0x0;
+ }
+
+ /* Do handshaking outputs */
+ msg.setTxTriState_setRts = 0xff;
+ msg.txTriState_rts = p_priv->rts_state;
+
+ msg.setHskoa_setDtr = 0xff;
+ msg.hskoa_dtr = p_priv->dtr_state;
+
+ p_priv->resend_cont = 0;
+ memcpy (this_urb->transfer_buffer, &msg, sizeof(msg));
+
+ /* send the data out the device on control endpoint */
+ this_urb->transfer_buffer_length = sizeof(msg);
+
+ this_urb->dev = serial->dev;
+ if ((err = usb_submit_urb(this_urb, GFP_ATOMIC)) != 0) {
+ dbg("%s - usb_submit_urb(setup) failed (%d)", __FUNCTION__, err);
+ }
+#if 0
+ else {
+ dbg("%s - usb_submit_urb(%d) OK %d bytes (end %d)", __FUNCTION__
+ outcont_urb, this_urb->transfer_buffer_length,
+ usb_pipeendpoint(this_urb->pipe));
+ }
+#endif
+
+ return (0);
+}
+
+static int keyspan_usa28_send_setup(struct usb_serial *serial,
+ struct usb_serial_port *port,
+ int reset_port)
+{
+ struct keyspan_usa28_portControlMessage msg;
+ struct keyspan_serial_private *s_priv;
+ struct keyspan_port_private *p_priv;
+ const struct keyspan_device_details *d_details;
+ struct urb *this_urb;
+ int device_port, err;
+
+ dbg ("%s", __FUNCTION__);
+
+ s_priv = usb_get_serial_data(serial);
+ p_priv = usb_get_serial_port_data(port);
+ d_details = s_priv->device_details;
+ device_port = port->number - port->serial->minor;
+
+ /* only do something if we have a bulk out endpoint */
+ if ((this_urb = p_priv->outcont_urb) == NULL) {
+ dbg("%s - oops no urb.", __FUNCTION__);
+ return -1;
+ }
+
+ /* Save reset port val for resend.
+ Don't overwrite resend for close condition. */
+ if (p_priv->resend_cont != 3)
+ p_priv->resend_cont = reset_port + 1;
+ if (this_urb->status == -EINPROGRESS) {
+ dbg ("%s already writing", __FUNCTION__);
+ mdelay(5);
+ return(-1);
+ }
+
+ memset(&msg, 0, sizeof (struct keyspan_usa28_portControlMessage));
+
+ msg.setBaudRate = 1;
+ if (d_details->calculate_baud_rate(p_priv->baud, d_details->baudclk,
+ &msg.baudHi, &msg.baudLo, NULL, device_port) == KEYSPAN_INVALID_BAUD_RATE ) {
+ dbg("%s - Invalid baud rate requested %d.", __FUNCTION__, p_priv->baud);
+ msg.baudLo = 0xff;
+ msg.baudHi = 0xb2; /* Values for 9600 baud */
+ }
+
+ /* If parity is enabled, we must calculate it ourselves. */
+ msg.parity = 0; /* XXX for now */
+
+ msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
+ msg.xonFlowControl = 0;
+
+ /* Do handshaking outputs, DTR is inverted relative to RTS */
+ msg.rts = p_priv->rts_state;
+ msg.dtr = p_priv->dtr_state;
+
+ msg.forwardingLength = 16;
+ msg.forwardMs = 10;
+ msg.breakThreshold = 45;
+ msg.xonChar = 17;
+ msg.xoffChar = 19;
+
+ /*msg.returnStatus = 1;
+ msg.resetDataToggle = 0xff;*/
+ /* Opening port */
+ if (reset_port == 1) {
+ msg._txOn = 1;
+ msg._txOff = 0;
+ msg.txFlush = 0;
+ msg.txForceXoff = 0;
+ msg.txBreak = 0;
+ msg.rxOn = 1;
+ msg.rxOff = 0;
+ msg.rxFlush = 1;
+ msg.rxForward = 0;
+ msg.returnStatus = 0;
+ msg.resetDataToggle = 0xff;
+ }
+ /* Closing port */
+ else if (reset_port == 2) {
+ msg._txOn = 0;
+ msg._txOff = 1;
+ msg.txFlush = 0;
+ msg.txForceXoff = 0;
+ msg.txBreak = 0;
+ msg.rxOn = 0;
+ msg.rxOff = 1;
+ msg.rxFlush = 1;
+ msg.rxForward = 0;
+ msg.returnStatus = 0;
+ msg.resetDataToggle = 0;
+ }
+ /* Sending intermediate configs */
+ else {
+ msg._txOn = (! p_priv->break_on);
+ msg._txOff = 0;
+ msg.txFlush = 0;
+ msg.txForceXoff = 0;
+ msg.txBreak = (p_priv->break_on);
+ msg.rxOn = 0;
+ msg.rxOff = 0;
+ msg.rxFlush = 0;
+ msg.rxForward = 0;
+ msg.returnStatus = 0;
+ msg.resetDataToggle = 0x0;
+ }
+
+ p_priv->resend_cont = 0;
+ memcpy (this_urb->transfer_buffer, &msg, sizeof(msg));
+
+ /* send the data out the device on control endpoint */
+ this_urb->transfer_buffer_length = sizeof(msg);
+
+ this_urb->dev = serial->dev;
+ if ((err = usb_submit_urb(this_urb, GFP_ATOMIC)) != 0) {
+ dbg("%s - usb_submit_urb(setup) failed", __FUNCTION__);
+ }
+#if 0
+ else {
+ dbg("%s - usb_submit_urb(setup) OK %d bytes", __FUNCTION__,
+ this_urb->transfer_buffer_length);
+ }
+#endif
+
+ return (0);
+}
+
+static int keyspan_usa49_send_setup(struct usb_serial *serial,
+ struct usb_serial_port *port,
+ int reset_port)
+{
+ struct keyspan_usa49_portControlMessage msg;
+ struct keyspan_serial_private *s_priv;
+ struct keyspan_port_private *p_priv;
+ const struct keyspan_device_details *d_details;
+ int glocont_urb;
+ struct urb *this_urb;
+ int err, device_port;
+
+ dbg ("%s", __FUNCTION__);
+
+ s_priv = usb_get_serial_data(serial);
+ p_priv = usb_get_serial_port_data(port);
+ d_details = s_priv->device_details;
+
+ glocont_urb = d_details->glocont_endpoint;
+ this_urb = s_priv->glocont_urb;
+
+ /* Work out which port within the device is being setup */
+ device_port = port->number - port->serial->minor;
+
+ dbg("%s - endpoint %d port %d (%d)",__FUNCTION__, usb_pipeendpoint(this_urb->pipe), port->number, device_port);
+
+ /* Make sure we have an urb then send the message */
+ if (this_urb == NULL) {
+ dbg("%s - oops no urb for port %d.", __FUNCTION__, port->number);
+ return -1;
+ }
+
+ /* Save reset port val for resend.
+ Don't overwrite resend for close condition. */
+ if (p_priv->resend_cont != 3)
+ p_priv->resend_cont = reset_port + 1;
+ if (this_urb->status == -EINPROGRESS) {
+ /* dbg ("%s - already writing", __FUNCTION__); */
+ mdelay(5);
+ return(-1);
+ }
+
+ memset(&msg, 0, sizeof (struct keyspan_usa49_portControlMessage));
+
+ /*msg.portNumber = port->number;*/
+ msg.portNumber = device_port;
+
+ /* Only set baud rate if it's changed */
+ if (p_priv->old_baud != p_priv->baud) {
+ p_priv->old_baud = p_priv->baud;
+ msg.setClocking = 0xff;
+ if (d_details->calculate_baud_rate
+ (p_priv->baud, d_details->baudclk, &msg.baudHi,
+ &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE ) {
+ dbg("%s - Invalid baud rate %d requested, using 9600.", __FUNCTION__,
+ p_priv->baud);
+ msg.baudLo = 0;
+ msg.baudHi = 125; /* Values for 9600 baud */
+ msg.prescaler = 10;
+ }
+ //msg.setPrescaler = 0xff;
+ }
+
+ msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1;
+ switch (p_priv->cflag & CSIZE) {
+ case CS5:
+ msg.lcr |= USA_DATABITS_5;
+ break;
+ case CS6:
+ msg.lcr |= USA_DATABITS_6;
+ break;
+ case CS7:
+ msg.lcr |= USA_DATABITS_7;
+ break;
+ case CS8:
+ msg.lcr |= USA_DATABITS_8;
+ break;
+ }
+ if (p_priv->cflag & PARENB) {
+ /* note USA_PARITY_NONE == 0 */
+ msg.lcr |= (p_priv->cflag & PARODD)?
+ USA_PARITY_ODD: USA_PARITY_EVEN;
+ }
+ msg.setLcr = 0xff;
+
+ msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
+ msg.xonFlowControl = 0;
+ msg.setFlowControl = 0xff;
+
+ msg.forwardingLength = 16;
+ msg.xonChar = 17;
+ msg.xoffChar = 19;
+
+ /* Opening port */
+ if (reset_port == 1) {
+ msg._txOn = 1;
+ msg._txOff = 0;
+ msg.txFlush = 0;
+ msg.txBreak = 0;
+ msg.rxOn = 1;
+ msg.rxOff = 0;
+ msg.rxFlush = 1;
+ msg.rxForward = 0;
+ msg.returnStatus = 0;
+ msg.resetDataToggle = 0xff;
+ msg.enablePort = 1;
+ msg.disablePort = 0;
+ }
+ /* Closing port */
+ else if (reset_port == 2) {
+ msg._txOn = 0;
+ msg._txOff = 1;
+ msg.txFlush = 0;
+ msg.txBreak = 0;
+ msg.rxOn = 0;
+ msg.rxOff = 1;
+ msg.rxFlush = 1;
+ msg.rxForward = 0;
+ msg.returnStatus = 0;
+ msg.resetDataToggle = 0;
+ msg.enablePort = 0;
+ msg.disablePort = 1;
+ }
+ /* Sending intermediate configs */
+ else {
+ msg._txOn = (! p_priv->break_on);
+ msg._txOff = 0;
+ msg.txFlush = 0;
+ msg.txBreak = (p_priv->break_on);
+ msg.rxOn = 0;
+ msg.rxOff = 0;
+ msg.rxFlush = 0;
+ msg.rxForward = 0;
+ msg.returnStatus = 0;
+ msg.resetDataToggle = 0x0;
+ msg.enablePort = 0;
+ msg.disablePort = 0;
+ }
+
+ /* Do handshaking outputs */
+ msg.setRts = 0xff;
+ msg.rts = p_priv->rts_state;
+
+ msg.setDtr = 0xff;
+ msg.dtr = p_priv->dtr_state;
+
+ p_priv->resend_cont = 0;
+ memcpy (this_urb->transfer_buffer, &msg, sizeof(msg));
+
+ /* send the data out the device on control endpoint */
+ this_urb->transfer_buffer_length = sizeof(msg);
+
+ this_urb->dev = serial->dev;
+ if ((err = usb_submit_urb(this_urb, GFP_ATOMIC)) != 0) {
+ dbg("%s - usb_submit_urb(setup) failed (%d)", __FUNCTION__, err);
+ }
+#if 0
+ else {
+ dbg("%s - usb_submit_urb(%d) OK %d bytes (end %d)", __FUNCTION__,
+ outcont_urb, this_urb->transfer_buffer_length,
+ usb_pipeendpoint(this_urb->pipe));
+ }
+#endif
+
+ return (0);
+}
+
+static int keyspan_usa90_send_setup(struct usb_serial *serial,
+ struct usb_serial_port *port,
+ int reset_port)
+{
+ struct keyspan_usa90_portControlMessage msg;
+ struct keyspan_serial_private *s_priv;
+ struct keyspan_port_private *p_priv;
+ const struct keyspan_device_details *d_details;
+ struct urb *this_urb;
+ int err;
+ u8 prescaler;
+
+ dbg ("%s", __FUNCTION__);
+
+ s_priv = usb_get_serial_data(serial);
+ p_priv = usb_get_serial_port_data(port);
+ d_details = s_priv->device_details;
+
+ /* only do something if we have a bulk out endpoint */
+ if ((this_urb = p_priv->outcont_urb) == NULL) {
+ dbg("%s - oops no urb.", __FUNCTION__);
+ return -1;
+ }
+
+ /* Save reset port val for resend.
+ Don't overwrite resend for open/close condition. */
+ if ((reset_port + 1) > p_priv->resend_cont)
+ p_priv->resend_cont = reset_port + 1;
+ if (this_urb->status == -EINPROGRESS) {
+ dbg ("%s already writing", __FUNCTION__);
+ mdelay(5);
+ return(-1);
+ }
+
+ memset(&msg, 0, sizeof (struct keyspan_usa90_portControlMessage));
+
+ /* Only set baud rate if it's changed */
+ if (p_priv->old_baud != p_priv->baud) {
+ p_priv->old_baud = p_priv->baud;
+ msg.setClocking = 0x01;
+ if (d_details->calculate_baud_rate
+ (p_priv->baud, d_details->baudclk, &msg.baudHi,
+ &msg.baudLo, &prescaler, 0) == KEYSPAN_INVALID_BAUD_RATE ) {
+ dbg("%s - Invalid baud rate %d requested, using 9600.", __FUNCTION__,
+ p_priv->baud);
+ p_priv->baud = 9600;
+ d_details->calculate_baud_rate (p_priv->baud, d_details->baudclk,
+ &msg.baudHi, &msg.baudLo, &prescaler, 0);
+ }
+ msg.setRxMode = 1;
+ msg.setTxMode = 1;
+ }
+
+ /* modes must always be correctly specified */
+ if (p_priv->baud > 57600)
+ {
+ msg.rxMode = RXMODE_DMA;
+ msg.txMode = TXMODE_DMA;
+ }
+ else
+ {
+ msg.rxMode = RXMODE_BYHAND;
+ msg.txMode = TXMODE_BYHAND;
+ }
+
+ msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1;
+ switch (p_priv->cflag & CSIZE) {
+ case CS5:
+ msg.lcr |= USA_DATABITS_5;
+ break;
+ case CS6:
+ msg.lcr |= USA_DATABITS_6;
+ break;
+ case CS7:
+ msg.lcr |= USA_DATABITS_7;
+ break;
+ case CS8:
+ msg.lcr |= USA_DATABITS_8;
+ break;
+ }
+ if (p_priv->cflag & PARENB) {
+ /* note USA_PARITY_NONE == 0 */
+ msg.lcr |= (p_priv->cflag & PARODD)?
+ USA_PARITY_ODD: USA_PARITY_EVEN;
+ }
+ if (p_priv->old_cflag != p_priv->cflag) {
+ p_priv->old_cflag = p_priv->cflag;
+ msg.setLcr = 0x01;
+ }
+
+ if (p_priv->flow_control == flow_cts)
+ msg.txFlowControl = TXFLOW_CTS;
+ msg.setTxFlowControl = 0x01;
+ msg.setRxFlowControl = 0x01;
+
+ msg.rxForwardingLength = 16;
+ msg.rxForwardingTimeout = 16;
+ msg.txAckSetting = 0;
+ msg.xonChar = 17;
+ msg.xoffChar = 19;
+
+ /* Opening port */
+ if (reset_port == 1) {
+ msg.portEnabled = 1;
+ msg.rxFlush = 1;
+ msg.txBreak = (p_priv->break_on);
+ }
+ /* Closing port */
+ else if (reset_port == 2) {
+ msg.portEnabled = 0;
+ }
+ /* Sending intermediate configs */
+ else {
+ if (port->open_count)
+ msg.portEnabled = 1;
+ msg.txBreak = (p_priv->break_on);
+ }
+
+ /* Do handshaking outputs */
+ msg.setRts = 0x01;
+ msg.rts = p_priv->rts_state;
+
+ msg.setDtr = 0x01;
+ msg.dtr = p_priv->dtr_state;
+
+ p_priv->resend_cont = 0;
+ memcpy (this_urb->transfer_buffer, &msg, sizeof(msg));
+
+ /* send the data out the device on control endpoint */
+ this_urb->transfer_buffer_length = sizeof(msg);
+
+ this_urb->dev = serial->dev;
+ if ((err = usb_submit_urb(this_urb, GFP_ATOMIC)) != 0) {
+ dbg("%s - usb_submit_urb(setup) failed (%d)", __FUNCTION__, err);
+ }
+ return (0);
+}
+
+static void keyspan_send_setup(struct usb_serial_port *port, int reset_port)
+{
+ struct usb_serial *serial = port->serial;
+ struct keyspan_serial_private *s_priv;
+ const struct keyspan_device_details *d_details;
+
+ dbg ("%s", __FUNCTION__);
+
+ s_priv = usb_get_serial_data(serial);
+ d_details = s_priv->device_details;
+
+ switch (d_details->msg_format) {
+ case msg_usa26:
+ keyspan_usa26_send_setup(serial, port, reset_port);
+ break;
+ case msg_usa28:
+ keyspan_usa28_send_setup(serial, port, reset_port);
+ break;
+ case msg_usa49:
+ keyspan_usa49_send_setup(serial, port, reset_port);
+ break;
+ case msg_usa90:
+ keyspan_usa90_send_setup(serial, port, reset_port);
+ break;
+ }
+}
+
+
+/* Gets called by the "real" driver (ie once firmware is loaded
+ and renumeration has taken place. */
+static int keyspan_startup (struct usb_serial *serial)
+{
+ int i, err;
+ struct usb_serial_port *port;
+ struct keyspan_serial_private *s_priv;
+ struct keyspan_port_private *p_priv;
+ const struct keyspan_device_details *d_details;
+
+ dbg("%s", __FUNCTION__);
+
+ for (i = 0; (d_details = keyspan_devices[i]) != NULL; ++i)
+ if (d_details->product_id == le16_to_cpu(serial->dev->descriptor.idProduct))
+ break;
+ if (d_details == NULL) {
+ dev_err(&serial->dev->dev, "%s - unknown product id %x\n", __FUNCTION__, le16_to_cpu(serial->dev->descriptor.idProduct));
+ return 1;
+ }
+
+ /* Setup private data for serial driver */
+ s_priv = kmalloc(sizeof(struct keyspan_serial_private), GFP_KERNEL);
+ if (!s_priv) {
+ dbg("%s - kmalloc for keyspan_serial_private failed.", __FUNCTION__);
+ return -ENOMEM;
+ }
+ memset(s_priv, 0, sizeof(struct keyspan_serial_private));
+
+ s_priv->device_details = d_details;
+ usb_set_serial_data(serial, s_priv);
+
+ /* Now setup per port private data */
+ for (i = 0; i < serial->num_ports; i++) {
+ port = serial->port[i];
+ p_priv = kmalloc(sizeof(struct keyspan_port_private), GFP_KERNEL);
+ if (!p_priv) {
+ dbg("%s - kmalloc for keyspan_port_private (%d) failed!.", __FUNCTION__, i);
+ return (1);
+ }
+ memset(p_priv, 0, sizeof(struct keyspan_port_private));
+ p_priv->device_details = d_details;
+ usb_set_serial_port_data(port, p_priv);
+ }
+
+ keyspan_setup_urbs(serial);
+
+ s_priv->instat_urb->dev = serial->dev;
+ if ((err = usb_submit_urb(s_priv->instat_urb, GFP_KERNEL)) != 0) {
+ dbg("%s - submit instat urb failed %d", __FUNCTION__, err);
+ }
+
+ return (0);
+}
+
+static void keyspan_shutdown (struct usb_serial *serial)
+{
+ int i, j;
+ struct usb_serial_port *port;
+ struct keyspan_serial_private *s_priv;
+ struct keyspan_port_private *p_priv;
+
+ dbg("%s", __FUNCTION__);
+
+ s_priv = usb_get_serial_data(serial);
+
+ /* Stop reading/writing urbs */
+ stop_urb(s_priv->instat_urb);
+ stop_urb(s_priv->glocont_urb);
+ for (i = 0; i < serial->num_ports; ++i) {
+ port = serial->port[i];
+ p_priv = usb_get_serial_port_data(port);
+ stop_urb(p_priv->inack_urb);
+ stop_urb(p_priv->outcont_urb);
+ for (j = 0; j < 2; j++) {
+ stop_urb(p_priv->in_urbs[j]);
+ stop_urb(p_priv->out_urbs[j]);
+ }
+ }
+
+ /* Now free them */
+ if (s_priv->instat_urb)
+ usb_free_urb(s_priv->instat_urb);
+ if (s_priv->glocont_urb)
+ usb_free_urb(s_priv->glocont_urb);
+ for (i = 0; i < serial->num_ports; ++i) {
+ port = serial->port[i];
+ p_priv = usb_get_serial_port_data(port);
+ if (p_priv->inack_urb)
+ usb_free_urb(p_priv->inack_urb);
+ if (p_priv->outcont_urb)
+ usb_free_urb(p_priv->outcont_urb);
+ for (j = 0; j < 2; j++) {
+ if (p_priv->in_urbs[j])
+ usb_free_urb(p_priv->in_urbs[j]);
+ if (p_priv->out_urbs[j])
+ usb_free_urb(p_priv->out_urbs[j]);
+ }
+ }
+
+ /* dbg("Freeing serial->private."); */
+ kfree(s_priv);
+
+ /* dbg("Freeing port->private."); */
+ /* Now free per port private data */
+ for (i = 0; i < serial->num_ports; i++) {
+ port = serial->port[i];
+ kfree(usb_get_serial_port_data(port));
+ }
+}
+
+MODULE_AUTHOR( DRIVER_AUTHOR );
+MODULE_DESCRIPTION( DRIVER_DESC );
+MODULE_LICENSE("GPL");
+
+module_param(debug, bool, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(debug, "Debug enabled or not");
+