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openwrt-xburst/target/linux/brcm-2.4/patches/014-sierra_support.patch

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This series of patches closes the support gap on one of the explicitly supported platforms (WRT54G3G) by adding direct support for the Sierra Wireless 3G modems. Signed-off-by: RB <aoz.syn@gmail.com> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11898 3c298f89-4303-0410-b956-a3cf2f4a3e73
2008-07-21 23:36:16 +03:00
diff -Naur linux-2.4.35.4-old/drivers/usb/serial/sierra.c linux-2.4.35.4/drivers/usb/serial/sierra.c
--- linux-2.4.35.4-old/drivers/usb/serial/sierra.c 1969-12-31 17:00:00.000000000 -0700
+++ linux-2.4.35.4/drivers/usb/serial/sierra.c 2008-01-25 10:21:25.747868456 -0700
@@ -0,0 +1,1446 @@
+/*
+ * Sierra Wireless CDMA Wireless Serial USB drive
+ *
+ * Current Copy modified by: Kevin Lloyd <linux@sierrawireless.com>
+ * Original Copy written by: 2005 Greg Kroah-Hartman <gregkh <at> suse.de>
+ *
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * Version history:
+ Version 1.03 (Lloyd):
+ Included support for DTR control and enhanced buffering (should help
+ speed).
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.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/usb.h>
+#include <linux/mm.h>
+#include <asm/uaccess.h>
+#include <linux/errno.h>
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/smp_lock.h>
+
+#ifdef CONFIG_USB_SERIAL_DEBUG
+ static int debug = 1;
+#else
+ static int debug;
+#endif
+
+#include "usb-serial.h"
+#include "sierra.h"
+#if defined(CONFIG_USB_SERIAL_PL2303) || defined(CONFIG_USB_SERIAL_PL2303_MODULE)
+#include "pl2303.h" // see /* BEGIN HORRIBLE HACK FOR PL2303 */ below
+#endif
+
+#define DRIVER_VERSION "v1.03"
+
+#if 0
+#define USB_VENDER_REQUEST_SET_DEVICE_POWER_STATE 0
+
+#define USB_DEVICE_POWER_STATE_D0 0x0000
+#define USB_DEVICE_POWER_STATE_D1 0x0001
+#define USB_DEVICE_POWER_STATE_D2 0x0002
+#define USB_DEVICE_POWER_STATE_D3 0x0003
+
+#define SET_CONTROL_LINE_STATE 0x22
+/*
+ * Output control lines.
+ */
+
+#define ACM_CTRL_DTR 0x01
+#define ACM_CTRL_RTS 0x02
+#endif
+
+//static int sw_attach(struct usb_serial *serial);
+static void sw_usb_serial_generic_shutdown(struct usb_serial *serial);
+
+static int sw_usb_serial_generic_open(struct usb_serial_port *port, struct file *filp);
+static void sw_usb_serial_generic_close(struct usb_serial_port *port, struct file *filp);
+
+#if 1
+/*-----------------------------------------------------------*/
+static int serial_refcount;
+static struct tty_driver serial_tty_driver;
+static struct tty_struct * serial_tty[SERIAL_TTY_MINORS];
+static struct termios * serial_termios[SERIAL_TTY_MINORS];
+static struct termios * serial_termios_locked[SERIAL_TTY_MINORS];
+static struct usb_serial *serial_table[SERIAL_TTY_MINORS]; /* initially all NULL */
+
+static LIST_HEAD(usb_serial_driver_list);
+static struct usb_serial *get_free_serial (int num_ports, int *minor);
+static void generic_write_bulk_callback (struct urb *urb);
+static void * usb_serial_probe(struct usb_device *dev, unsigned int ifnum,const struct usb_device_id *id);
+static void usb_serial_disconnect(struct usb_device *dev, void *ptr);
+static void sw_usb_serial_generic_read_bulk_callback (struct urb *urb);
+static void port_softint(void *private);
+static void return_serial (struct usb_serial *serial);
+static struct usb_serial *get_free_serial (int num_ports, int *minor);
+static int serial_read_proc (char *page, char **start, off_t off, int count, int *eof, void *data);
+/*-----------------------------------------------------------*/
+
+#endif
+
+
+static struct usb_device_id id_table [] = {
+ { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */
+ { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */
+ { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */
+ { USB_DEVICE(0x0f30, 0x1b1d) }, /* Sierra Wireless MC5720 */
+ { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */
+ { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */
+ { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */
+ { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */
+ { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */
+ { USB_DEVICE(0x1199, 0x0023) }, /* Sierra Wireless C597 */
+
+ { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */
+ { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */
+ { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */
+ { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */
+ { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 (Thinkpad internal) */
+ { USB_DEVICE(0x1199, 0x6815) }, /* Sierra Wireless MC8775 */
+ { USB_DEVICE(0x03f0, 0x1e1d) }, /* HP hs2300 a.k.a MC8775 */
+ { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */
+ { USB_DEVICE(0x1199, 0x6821) }, /* Sierra Wireless AirCard 875U */
+ { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780*/
+ { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781*/
+ { USB_DEVICE(0x1199, 0x683B) }, /* Sierra Wireless MC8785 Composite*/
+ { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */
+ { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */
+ { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */
+ { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */
+ { USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */
+ { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */
+ { USB_DEVICE(0x1199, 0x6859) }, /* Sierra Wireless AirCard 885 E */
+ { USB_DEVICE(0x1199, 0x685A) }, /* Sierra Wireless AirCard 885 E */
+
+ { USB_DEVICE(0x1199, 0x6468) }, /* Sierra Wireless MP3G - EVDO */
+ { USB_DEVICE(0x1199, 0x6469) }, /* Sierra Wireless MP3G - UMTS/HSPA */
+
+ { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */
+ { USB_DEVICE(0x0F3D, 0x0112) }, /* AirPrime/Sierra Wireless PC 5220 */
+ { USB_DEVICE(0x05C6, 0x6613) }, /* Onda H600/ZTE MF330 */
+ { }
+};
+
+MODULE_DEVICE_TABLE(usb, id_table);
+
+static struct usb_driver sierra_driver = {
+// .owner = THIS_MODULE,
+ .name = "Sierra wireless",
+ .probe = usb_serial_probe,
+ .disconnect = usb_serial_disconnect,
+ .id_table = id_table,
+};
+
+static struct usb_serial_device_type sierra_device = {
+// .driver = {
+ .owner = THIS_MODULE,
+ .name = "Sierra Wireless",
+// },
+ .id_table = id_table,
+ .num_interrupt_in = NUM_DONT_CARE,
+ .num_bulk_in = NUM_DONT_CARE,
+ .num_bulk_out = NUM_DONT_CARE,
+ .num_ports = 3,
+ //.startup = sw_attach,
+ .shutdown = sw_usb_serial_generic_shutdown,
+ .open = sw_usb_serial_generic_open,
+ .close = sw_usb_serial_generic_close,
+};
+
+#define MAX_NUM_PORTS 8
+
+/* local function prototypes */
+static int serial_open (struct tty_struct *tty, struct file * filp);
+static void serial_close (struct tty_struct *tty, struct file * filp);
+static int serial_write (struct tty_struct * tty, int from_user, const unsigned char *buf, int count);
+static int serial_write_room (struct tty_struct *tty);
+static int serial_chars_in_buffer (struct tty_struct *tty);
+static void serial_throttle (struct tty_struct * tty);
+static void serial_unthrottle (struct tty_struct * tty);
+static int serial_ioctl (struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg);
+static void serial_set_termios (struct tty_struct *tty, struct termios * old);
+//static void serial_shutdown (struct usb_serial *serial);
+static void serial_break (struct tty_struct *tty, int break_state);
+static int generic_write (struct usb_serial_port *port, int from_user, const unsigned char *buf, int count);
+static int generic_write_room (struct usb_serial_port *port);
+static void generic_cleanup (struct usb_serial_port *port);
+static int generic_chars_in_buffer (struct usb_serial_port *port);
+//static void generic_shutdown (struct usb_serial *serial);
+
+#if 1
+static struct tty_driver serial_tty_driver = {
+ .magic = TTY_DRIVER_MAGIC,
+ .driver_name = "usb-serial",
+#ifndef CONFIG_DEVFS_FS
+ .name = "ttyUSB",
+#else
+ .name = "usb/tts/%d",
+#endif
+ .major = SERIAL_TTY_MAJOR,
+ .minor_start = 0,
+ .num = SERIAL_TTY_MINORS,
+ .type = TTY_DRIVER_TYPE_SERIAL,
+ .subtype = SERIAL_TYPE_NORMAL,
+ .flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS,
+
+ .refcount = &serial_refcount,
+ .table = serial_tty,
+ .termios = serial_termios,
+ .termios_locked = serial_termios_locked,
+
+ .open = serial_open,
+ .close = serial_close,
+ .write = serial_write,
+ .write_room = serial_write_room,
+ .ioctl = serial_ioctl,
+ .set_termios = serial_set_termios,
+ .throttle = serial_throttle,
+ .unthrottle = serial_unthrottle,
+ .break_ctl = serial_break,
+ .chars_in_buffer = serial_chars_in_buffer,
+ .read_proc = serial_read_proc,
+};
+#endif
+
+
+/*****************************************************************************
+ * Driver tty interface functions
+ *****************************************************************************/
+static struct usb_serial *get_serial_by_minor (unsigned int minor)
+{
+ return serial_table[minor];
+}
+
+static int serial_open (struct tty_struct *tty, struct file * filp)
+{
+ struct usb_serial *serial;
+ struct usb_serial_port *port;
+ unsigned int portNumber;
+ int retval = 0;
+
+ dbg("%s", __FUNCTION__);
+
+ /* initialize the pointer incase something fails */
+ tty->driver_data = NULL;
+
+ /* get the serial object associated with this tty pointer */
+ serial = get_serial_by_minor (MINOR(tty->device));
+
+ if (serial_paranoia_check (serial, __FUNCTION__))
+ return -ENODEV;
+
+ /* set up our port structure making the tty driver remember our port object, and us it */
+ portNumber = MINOR(tty->device) - serial->minor;
+ port = &serial->port[portNumber];
+ tty->driver_data = port;
+
+ down (&port->sem);
+ port->tty = tty;
+
+ /* lock this module before we call it */
+ if (serial->type->owner)
+ __MOD_INC_USE_COUNT(serial->type->owner);
+
+ ++port->open_count;
+ if (port->open_count == 1) {
+ /* only call the device specific open if this
+ * is the first time the port is opened */
+ if (serial->type->open)
+ retval = serial->type->open(port, filp);
+ else
+ retval = sw_usb_serial_generic_open(port, filp);//@.@
+ }
+
+ if (retval) {
+ port->open_count = 0;
+ if (serial->type->owner)
+ __MOD_DEC_USE_COUNT(serial->type->owner);
+ }
+
+ up (&port->sem);
+ return retval;
+}
+
+static void __serial_close(struct usb_serial_port *port, struct file *filp)
+{
+ if (!port->open_count) {
+ dbg ("%s - port not opened", __FUNCTION__);
+ return;
+ }
+
+ --port->open_count;
+ if (port->open_count <= 0) {
+ /* only call the device specific close if this
+ * port is being closed by the last owner */
+ if (port->serial->type->close)
+ port->serial->type->close(port, filp);
+ else
+ //generic_close(port, filp);
+ sw_usb_serial_generic_close(port, filp);
+ port->open_count = 0;
+ }
+
+ if (port->serial->type->owner)
+ __MOD_DEC_USE_COUNT(port->serial->type->owner);
+}
+
+static void serial_close(struct tty_struct *tty, struct file * filp)
+{
+ struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data;
+ struct usb_serial *serial = get_usb_serial (port, __FUNCTION__);
+
+ if (!serial)
+ return;
+
+ down (&port->sem);
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ /* if disconnect beat us to the punch here, there's nothing to do */
+ if (tty->driver_data) {
+ __serial_close(port, filp);
+ }
+
+ up (&port->sem);
+}
+
+static int serial_write (struct tty_struct * tty, int from_user, const unsigned char *buf, int count)
+{
+ struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data;
+ struct usb_serial *serial = get_usb_serial (port, __FUNCTION__);
+ int retval = -EINVAL;
+
+ if (!serial)
+ return -ENODEV;
+
+ down (&port->sem);
+
+ dbg("%s - port %d, %d byte(s)", __FUNCTION__, port->number, count);
+
+ if (!port->open_count) {
+ dbg("%s - port not opened", __FUNCTION__);
+ goto exit;
+ }
+
+ /* pass on to the driver specific version of this function if it is available */
+ if (serial->type->write)
+ retval = serial->type->write(port, from_user, buf, count);
+ else
+ retval = generic_write(port, from_user, buf, count);
+
+exit:
+ up (&port->sem);
+ return retval;
+}
+
+static int serial_write_room (struct tty_struct *tty)
+{
+ struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data;
+ struct usb_serial *serial = get_usb_serial (port, __FUNCTION__);
+ int retval = -EINVAL;
+
+ if (!serial)
+ return -ENODEV;
+
+ down (&port->sem);
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if (!port->open_count) {
+ dbg("%s - port not open", __FUNCTION__);
+ goto exit;
+ }
+
+ /* pass on to the driver specific version of this function if it is available */
+ if (serial->type->write_room)
+ retval = serial->type->write_room(port);
+ else
+ retval = generic_write_room(port);
+
+exit:
+ up (&port->sem);
+ return retval;
+}
+
+static int serial_chars_in_buffer (struct tty_struct *tty)
+{
+ struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data;
+ struct usb_serial *serial = get_usb_serial (port, __FUNCTION__);
+ int retval = -EINVAL;
+
+ if (!serial)
+ return -ENODEV;
+
+ down (&port->sem);
+
+ dbg("%s = port %d", __FUNCTION__, port->number);
+
+ if (!port->open_count) {
+ dbg("%s - port not open", __FUNCTION__);
+ goto exit;
+ }
+
+ /* pass on to the driver specific version of this function if it is available */
+ if (serial->type->chars_in_buffer)
+ retval = serial->type->chars_in_buffer(port);
+ else
+ retval = generic_chars_in_buffer(port);
+
+exit:
+ up (&port->sem);
+ return retval;
+}
+
+static void serial_throttle (struct tty_struct * tty)
+{
+ struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data;
+ struct usb_serial *serial = get_usb_serial (port, __FUNCTION__);
+
+ if (!serial)
+ return;
+
+ down (&port->sem);
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if (!port->open_count) {
+ dbg ("%s - port not open", __FUNCTION__);
+ goto exit;
+ }
+
+ /* pass on to the driver specific version of this function */
+ if (serial->type->throttle)
+ serial->type->throttle(port);
+
+exit:
+ up (&port->sem);
+}
+
+static void serial_unthrottle (struct tty_struct * tty)
+{
+ struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data;
+ struct usb_serial *serial = get_usb_serial (port, __FUNCTION__);
+
+ if (!serial)
+ return;
+
+ down (&port->sem);
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if (!port->open_count) {
+ dbg("%s - port not open", __FUNCTION__);
+ goto exit;
+ }
+
+ /* pass on to the driver specific version of this function */
+ if (serial->type->unthrottle)
+ serial->type->unthrottle(port);
+
+exit:
+ up (&port->sem);
+}
+
+static int serial_ioctl (struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg)
+{
+ struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data;
+ struct usb_serial *serial = get_usb_serial (port, __FUNCTION__);
+ int retval = -ENODEV;
+
+ if (!serial)
+ return -ENODEV;
+
+ down (&port->sem);
+
+ dbg("%s - port %d, cmd 0x%.4x", __FUNCTION__, port->number, cmd);
+
+ if (!port->open_count) {
+ dbg ("%s - port not open", __FUNCTION__);
+ goto exit;
+ }
+
+ /* pass on to the driver specific version of this function if it is available */
+ if (serial->type->ioctl)
+ retval = serial->type->ioctl(port, file, cmd, arg);
+ else
+ retval = -ENOIOCTLCMD;
+
+exit:
+ up (&port->sem);
+ return retval;
+}
+
+static void serial_set_termios (struct tty_struct *tty, struct termios * old)
+{
+ struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data;
+ struct usb_serial *serial = get_usb_serial (port, __FUNCTION__);
+
+ if (!serial)
+ return;
+
+ down (&port->sem);
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if (!port->open_count) {
+ dbg("%s - port not open", __FUNCTION__);
+ goto exit;
+ }
+
+ /* pass on to the driver specific version of this function if it is available */
+ if (serial->type->set_termios)
+ serial->type->set_termios(port, old);
+
+exit:
+ up (&port->sem);
+}
+
+static void serial_break (struct tty_struct *tty, int break_state)
+{
+ struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data;
+ struct usb_serial *serial = get_usb_serial (port, __FUNCTION__);
+
+ if (!serial)
+ return;
+
+ down (&port->sem);
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if (!port->open_count) {
+ dbg("%s - port not open", __FUNCTION__);
+ goto exit;
+ }
+
+ /* pass on to the driver specific version of this function if it is available */
+ if (serial->type->break_ctl)
+ serial->type->break_ctl(port, break_state);
+
+exit:
+ up (&port->sem);
+}
+#if 0
+static void serial_shutdown (struct usb_serial *serial)
+{
+ dbg ("%s", __FUNCTION__);
+
+ if (serial->type->shutdown)
+ serial->type->shutdown(serial);
+ else
+ generic_shutdown(serial);
+}
+#endif
+static int serial_read_proc (char *page, char **start, off_t off, int count, int *eof, void *data)
+{
+ struct usb_serial *serial;
+ int length = 0;
+ int i;
+ off_t begin = 0;
+ char tmp[40];
+
+ dbg("%s", __FUNCTION__);
+ length += sprintf (page, "usbserinfo:1.0 driver:%s\n", DRIVER_VERSION);
+ for (i = 0; i < SERIAL_TTY_MINORS && length < PAGE_SIZE; ++i) {
+ serial = get_serial_by_minor(i);
+ if (serial == NULL)
+ continue;
+
+ length += sprintf (page+length, "%d:", i);
+ if (serial->type->owner)
+ length += sprintf (page+length, " module:%s", serial->type->owner->name);
+ length += sprintf (page+length, " name:\"%s\"", serial->type->name);
+ length += sprintf (page+length, " vendor:%04x product:%04x", serial->vendor, serial->product);
+ length += sprintf (page+length, " num_ports:%d", serial->num_ports);
+ length += sprintf (page+length, " port:%d", i - serial->minor + 1);
+
+ usb_make_path(serial->dev, tmp, sizeof(tmp));
+ length += sprintf (page+length, " path:%s", tmp);
+
+ length += sprintf (page+length, "\n");
+ if ((length + begin) > (off + count))
+ goto done;
+ if ((length + begin) < off) {
+ begin += length;
+ length = 0;
+ }
+ }
+ *eof = 1;
+done:
+ if (off >= (length + begin))
+ return 0;
+ *start = page + (off-begin);
+ return ((count < begin+length-off) ? count : begin+length-off);
+}
+
+
+/*-----------------------------------------------------------*/
+static int generic_write (struct usb_serial_port *port, int from_user, const unsigned char *buf, int count)
+{
+ struct usb_serial *serial = port->serial;
+ int result;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if (count == 0) {
+ dbg("%s - write request of 0 bytes", __FUNCTION__);
+ return (0);
+ }
+
+ /* only do something if we have a bulk out endpoint */
+ if (serial->num_bulk_out) {
+ if (port->write_urb->status == -EINPROGRESS) {
+ dbg("%s - already writing", __FUNCTION__);
+ return (0);
+ }
+
+ count = (count > port->bulk_out_size) ? port->bulk_out_size : count;
+
+ if (from_user) {
+ if (copy_from_user(port->write_urb->transfer_buffer, buf, count))
+ return -EFAULT;
+ }
+ else {
+ memcpy (port->write_urb->transfer_buffer, buf, count);
+ }
+
+ usb_serial_debug_data (__FILE__, __FUNCTION__, count, port->write_urb->transfer_buffer);
+
+ /* set up our urb */
+ usb_fill_bulk_urb (port->write_urb, serial->dev,
+ usb_sndbulkpipe (serial->dev,
+ port->bulk_out_endpointAddress),
+ port->write_urb->transfer_buffer, count,
+ ((serial->type->write_bulk_callback) ?
+ serial->type->write_bulk_callback :
+ generic_write_bulk_callback), port);
+
+ /* send the data out the bulk port */
+ result = usb_submit_urb(port->write_urb);
+ if (result)
+ err("%s - failed submitting write urb, error %d", __FUNCTION__, result);
+ else
+ result = count;
+
+ return result;
+ }
+
+ /* no bulk out, so return 0 bytes written */
+ return (0);
+}
+
+static int generic_write_room (struct usb_serial_port *port)
+{
+ struct usb_serial *serial = port->serial;
+ int room = 0;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if (serial->num_bulk_out) {
+ if (port->write_urb->status != -EINPROGRESS)
+ room = port->bulk_out_size;
+ }
+
+ dbg("%s - returns %d", __FUNCTION__, room);
+ return (room);
+}
+
+static int generic_chars_in_buffer (struct usb_serial_port *port)
+{
+ struct usb_serial *serial = port->serial;
+ int chars = 0;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if (serial->num_bulk_out) {
+ if (port->write_urb->status == -EINPROGRESS)
+ chars = port->write_urb->transfer_buffer_length;
+ }
+
+ dbg("%s - returns %d", __FUNCTION__, chars);
+ return (chars);
+}
+#if 0
+static void generic_shutdown (struct usb_serial *serial)
+{
+ int i;
+
+ dbg("%s", __FUNCTION__);
+
+ /* stop reads and writes on all ports */
+ for (i=0; i < serial->num_ports; ++i) {
+ generic_cleanup (&serial->port[i]);
+ }
+}
+static void generic_cleanup (struct usb_serial_port *port)
+{
+ struct usb_serial *serial = port->serial;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if (serial->dev) {
+ /* shutdown any bulk reads that might be going on */
+ if (serial->num_bulk_out)
+ usb_unlink_urb (port->write_urb);
+ if (serial->num_bulk_in)
+ usb_unlink_urb (port->read_urb);
+ }
+}
+#endif
+/*----------------------------------------------------------*/
+static void generic_write_bulk_callback (struct urb *urb)
+{
+ struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+ struct usb_serial *serial = get_usb_serial (port, __FUNCTION__);
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if (!serial) {
+ dbg("%s - bad serial pointer, exiting", __FUNCTION__);
+ return;
+ }
+
+ if (urb->status) {
+ dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status);
+ return;
+ }
+
+ queue_task(&port->tqueue, &tq_immediate);
+ mark_bh(IMMEDIATE_BH);
+
+ return;
+}
+
+static struct usb_serial *get_free_serial (int num_ports, int *minor)
+{
+ struct usb_serial *serial = NULL;
+ int i, j;
+ int good_spot;
+
+ dbg("%s %d", __FUNCTION__, num_ports);
+
+ *minor = 0;
+ for (i = 0; i < SERIAL_TTY_MINORS; ++i) {
+ if (serial_table[i])
+ continue;
+
+ good_spot = 1;
+ for (j = 1; j <= num_ports-1; ++j)
+ if (serial_table[i+j])
+ good_spot = 0;
+ if (good_spot == 0)
+ continue;
+
+ if (!(serial = kmalloc(sizeof(struct usb_serial), GFP_KERNEL))) {
+ err("%s - Out of memory", __FUNCTION__);
+ return NULL;
+ }
+ memset(serial, 0, sizeof(struct usb_serial));
+ serial->magic = USB_SERIAL_MAGIC;
+ serial_table[i] = serial;
+ *minor = i;
+ dbg("%s - minor base = %d", __FUNCTION__, *minor);
+ for (i = *minor+1; (i < (*minor + num_ports)) && (i < SERIAL_TTY_MINORS); ++i)
+ serial_table[i] = serial;
+ return serial;
+ }
+ return NULL;
+}
+
+static void return_serial (struct usb_serial *serial)
+{
+ int i;
+
+ dbg("%s", __FUNCTION__);
+
+ if (serial == NULL)
+ return;
+
+ for (i = 0; i < serial->num_ports; ++i) {
+ serial_table[serial->minor + i] = NULL;
+ }
+
+ return;
+}
+
+static void port_softint(void *private)
+{
+ struct usb_serial_port *port = (struct usb_serial_port *)private;
+ struct usb_serial *serial = get_usb_serial (port, __FUNCTION__);
+ struct tty_struct *tty;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if (!serial)
+ return;
+
+ tty = port->tty;
+ if (!tty)
+ return;
+
+ if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) && tty->ldisc.write_wakeup) {
+ dbg("%s - write wakeup call.", __FUNCTION__);
+ (tty->ldisc.write_wakeup)(tty);
+ }
+
+ wake_up_interruptible(&tty->write_wait);
+}
+
+
+static void * usb_serial_probe(struct usb_device *dev, unsigned int ifnum,
+ const struct usb_device_id *id)
+{
+ struct usb_serial *serial = NULL;
+ struct usb_serial_port *port;
+ struct usb_interface *interface;
+ struct usb_interface_descriptor *iface_desc;
+ struct usb_endpoint_descriptor *endpoint;
+ struct usb_endpoint_descriptor *interrupt_in_endpoint[MAX_NUM_PORTS];
+ struct usb_endpoint_descriptor *bulk_in_endpoint[MAX_NUM_PORTS];
+ struct usb_endpoint_descriptor *bulk_out_endpoint[MAX_NUM_PORTS];
+ struct usb_serial_device_type *type = NULL;
+ struct list_head *tmp;
+ int found;
+ int minor;
+ int buffer_size;
+ int i;
+ int num_interrupt_in = 0;
+ int num_bulk_in = 0;
+ int num_bulk_out = 0;
+ int num_ports;
+ int max_endpoints;
+ const struct usb_device_id *id_pattern = NULL;
+
+ /* loop through our list of known serial converters, and see if this
+ device matches. */
+ found = 0;
+ interface = &dev->actconfig->interface[ifnum];
+ list_for_each (tmp, &usb_serial_driver_list) {
+ type = list_entry(tmp, struct usb_serial_device_type, driver_list);
+ id_pattern = usb_match_id(dev, interface, type->id_table);
+ if (id_pattern != NULL) {
+ dbg("descriptor matches");
+ found = 1;
+ break;
+ }
+ }
+ if (!found) {
+ /* no match */
+ dbg("none matched");
+ return(NULL);
+ }
+ /* descriptor matches, let's find the endpoints needed */
+ /* check out the endpoints */
+ iface_desc = &interface->altsetting[0];
+ for (i = 0; i < iface_desc->bNumEndpoints; ++i) {
+ endpoint = &iface_desc->endpoint[i];
+
+ if ((endpoint->bEndpointAddress & 0x80) &&
+ ((endpoint->bmAttributes & 3) == 0x02)) {
+ /* we found a bulk in endpoint */
+ dbg("found bulk in");
+ bulk_in_endpoint[num_bulk_in] = endpoint;
+ ++num_bulk_in;
+ }
+
+ if (((endpoint->bEndpointAddress & 0x80) == 0x00) &&
+ ((endpoint->bmAttributes & 3) == 0x02)) {
+ /* we found a bulk out endpoint */
+ dbg("found bulk out");
+ bulk_out_endpoint[num_bulk_out] = endpoint;
+ ++num_bulk_out;
+ }
+
+ if ((endpoint->bEndpointAddress & 0x80) &&
+ ((endpoint->bmAttributes & 3) == 0x03)) {
+ /* we found a interrupt in endpoint */
+ dbg("found interrupt in");
+ interrupt_in_endpoint[num_interrupt_in] = endpoint;
+ ++num_interrupt_in;
+ }
+ }
+
+#if defined(CONFIG_USB_SERIAL_PL2303) || defined(CONFIG_USB_SERIAL_PL2303_MODULE)
+ /* BEGIN HORRIBLE HACK FOR PL2303 */
+ /* this is needed due to the looney way its endpoints are set up */
+ if (((dev->descriptor.idVendor == PL2303_VENDOR_ID) &&
+ (dev->descriptor.idProduct == PL2303_PRODUCT_ID)) ||
+ ((dev->descriptor.idVendor == ATEN_VENDOR_ID) &&
+ (dev->descriptor.idProduct == ATEN_PRODUCT_ID))) {
+ if (ifnum == 1) {
+ /* check out the endpoints of the other interface*/
+ interface = &dev->actconfig->interface[ifnum ^ 1];
+ iface_desc = &interface->altsetting[0];
+ for (i = 0; i < iface_desc->bNumEndpoints; ++i) {
+ endpoint = &iface_desc->endpoint[i];
+ if ((endpoint->bEndpointAddress & 0x80) &&
+ ((endpoint->bmAttributes & 3) == 0x03)) {
+ /* we found a interrupt in endpoint */
+ dbg("found interrupt in for Prolific device on separate interface");
+ interrupt_in_endpoint[num_interrupt_in] = endpoint;
+ ++num_interrupt_in;
+ }
+ }
+ }
+
+ /* Now make sure the PL-2303 is configured correctly.
+ * If not, give up now and hope this hack will work
+ * properly during a later invocation of usb_serial_probe
+ */
+ if (num_bulk_in == 0 || num_bulk_out == 0) {
+ info("PL-2303 hack: descriptors matched but endpoints did not");
+ return NULL;
+ }
+ }
+ /* END HORRIBLE HACK FOR PL2303 */
+#endif
+
+ /* found all that we need */
+ info("%s converter detected", type->name);
+
+#ifdef CONFIG_USB_SERIAL_SIERRAWIRELESS
+ if (type == &sierra_driver) {
+ num_ports = num_bulk_out;
+ if (num_ports == 0) {
+ err("Sierra 3G device with no bulk out, not allowed.");
+ return NULL;
+ }
+ } else
+#endif
+ num_ports = type->num_ports;
+
+ serial = get_free_serial (num_ports, &minor);
+ if (serial == NULL) {
+ err("No more free serial devices");
+ return NULL;
+ }
+
+ serial->dev = dev;
+ serial->type = type;
+ serial->interface = interface;
+ serial->minor = minor;
+ serial->num_ports = num_ports;
+ serial->num_bulk_in = num_bulk_in;
+ serial->num_bulk_out = num_bulk_out;
+ serial->num_interrupt_in = num_interrupt_in;
+ serial->vendor = dev->descriptor.idVendor;
+ serial->product = dev->descriptor.idProduct;
+
+ /* set up the endpoint information */
+ for (i = 0; i < num_bulk_in; ++i) {
+ endpoint = bulk_in_endpoint[i];
+ port = &serial->port[i];
+ port->read_urb = usb_alloc_urb (0);
+ if (!port->read_urb) {
+ err("No free urbs available");
+ goto probe_error;
+ }
+//Amin marked buffer_size = endpoint->wMaxPacketSize;
+// ===> 20060310 Amin modify for improve EVDO and HSDPA Card
+ buffer_size = 2048;
+ printk("KERNEL DEBUG => USBSERIAL.O buffer_size = 2048\n");
+// <=== 20060310 Amin modify for improve EVDO and HSDPA Card
+ port->bulk_in_endpointAddress = endpoint->bEndpointAddress;
+ port->bulk_in_buffer = kmalloc (buffer_size, GFP_KERNEL);
+ if (!port->bulk_in_buffer) {
+ err("Couldn't allocate bulk_in_buffer");
+ goto probe_error;
+ }
+ usb_fill_bulk_urb (port->read_urb, dev,
+ usb_rcvbulkpipe (dev,
+ endpoint->bEndpointAddress),
+ port->bulk_in_buffer, buffer_size,
+ ((serial->type->read_bulk_callback) ?
+ serial->type->read_bulk_callback :
+ sw_usb_serial_generic_read_bulk_callback),
+ port);
+ }
+
+ for (i = 0; i < num_bulk_out; ++i) {
+ endpoint = bulk_out_endpoint[i];
+ port = &serial->port[i];
+ port->write_urb = usb_alloc_urb(0);
+ if (!port->write_urb) {
+ err("No free urbs available");
+ goto probe_error;
+ }
+ buffer_size = endpoint->wMaxPacketSize;
+ port->bulk_out_size = buffer_size;
+ port->bulk_out_endpointAddress = endpoint->bEndpointAddress;
+ port->bulk_out_buffer = kmalloc (buffer_size, GFP_KERNEL);
+ if (!port->bulk_out_buffer) {
+ err("Couldn't allocate bulk_out_buffer");
+ goto probe_error;
+ }
+ usb_fill_bulk_urb (port->write_urb, dev,
+ usb_sndbulkpipe (dev,
+ endpoint->bEndpointAddress),
+ port->bulk_out_buffer, buffer_size,
+ ((serial->type->write_bulk_callback) ?
+ serial->type->write_bulk_callback :
+ generic_write_bulk_callback),
+ port);
+ }
+
+ for (i = 0; i < num_interrupt_in; ++i) {
+ endpoint = interrupt_in_endpoint[i];
+ port = &serial->port[i];
+ port->interrupt_in_urb = usb_alloc_urb(0);
+ if (!port->interrupt_in_urb) {
+ err("No free urbs available");
+ goto probe_error;
+ }
+ buffer_size = endpoint->wMaxPacketSize;
+ port->interrupt_in_endpointAddress = endpoint->bEndpointAddress;
+ port->interrupt_in_buffer = kmalloc (buffer_size, GFP_KERNEL);
+ if (!port->interrupt_in_buffer) {
+ err("Couldn't allocate interrupt_in_buffer");
+ goto probe_error;
+ }
+ usb_fill_int_urb (port->interrupt_in_urb, dev,
+ usb_rcvintpipe (dev,
+ endpoint->bEndpointAddress),
+ port->interrupt_in_buffer, buffer_size,
+ serial->type->read_int_callback, port,
+ endpoint->bInterval);
+ }
+
+ /* initialize some parts of the port structures */
+ /* we don't use num_ports here cauz some devices have more endpoint pairs than ports */
+ max_endpoints = max(num_bulk_in, num_bulk_out);
+ max_endpoints = max(max_endpoints, num_interrupt_in);
+ max_endpoints = max(max_endpoints, (int)serial->num_ports);
+ dbg("%s - setting up %d port structures for this device", __FUNCTION__, max_endpoints);
+ for (i = 0; i < max_endpoints; ++i) {
+ port = &serial->port[i];
+ port->number = i + serial->minor;
+ port->serial = serial;
+ port->magic = USB_SERIAL_PORT_MAGIC;
+ port->tqueue.routine = port_softint;
+ port->tqueue.data = port;
+ init_MUTEX (&port->sem);
+ }
+
+ /* if this device type has a startup function, call it */
+ if (type->startup) {
+ i = type->startup (serial);
+ if (i < 0)
+ goto probe_error;
+ if (i > 0)
+ return serial;
+ }
+
+ /* initialize the devfs nodes for this device and let the user know what ports we are bound to */
+ for (i = 0; i < serial->num_ports; ++i) {
+ tty_register_devfs (&serial_tty_driver, 0, serial->port[i].number);
+ info("%s converter now attached to ttyUSB%d (or usb/tts/%d for devfs)",
+ type->name, serial->port[i].number, serial->port[i].number);
+ }
+
+ return serial; /* success */
+
+
+probe_error:
+ for (i = 0; i < num_bulk_in; ++i) {
+ port = &serial->port[i];
+ if (port->read_urb)
+ usb_free_urb (port->read_urb);
+ if (port->bulk_in_buffer)
+ kfree (port->bulk_in_buffer);
+ }
+ for (i = 0; i < num_bulk_out; ++i) {
+ port = &serial->port[i];
+ if (port->write_urb)
+ usb_free_urb (port->write_urb);
+ if (port->bulk_out_buffer)
+ kfree (port->bulk_out_buffer);
+ }
+ for (i = 0; i < num_interrupt_in; ++i) {
+ port = &serial->port[i];
+ if (port->interrupt_in_urb)
+ usb_free_urb (port->interrupt_in_urb);
+ if (port->interrupt_in_buffer)
+ kfree (port->interrupt_in_buffer);
+ }
+
+ /* return the minor range that this device had */
+ return_serial (serial);
+
+ /* free up any memory that we allocated */
+ kfree (serial);
+ return NULL;
+}
+
+static void usb_serial_disconnect(struct usb_device *dev, void *ptr)
+{
+ struct usb_serial *serial = (struct usb_serial *) ptr;
+ struct usb_serial_port *port;
+ int i;
+
+ dbg ("%s", __FUNCTION__);
+ if (serial) {
+ /* fail all future close/read/write/ioctl/etc calls */
+ for (i = 0; i < serial->num_ports; ++i) {
+ port = &serial->port[i];
+ down (&port->sem);
+ if (port->tty != NULL) {
+ while (port->open_count > 0) {
+ //__serial_close(port, NULL);
+ sw_usb_serial_generic_close(port,NULL);
+ }
+ port->tty->driver_data = NULL;
+ }
+ up (&port->sem);
+ }
+
+ serial->dev = NULL;
+ //serial_shutdown (serial);
+ sw_usb_serial_generic_shutdown(serial);
+
+ for (i = 0; i < serial->num_ports; ++i)
+ serial->port[i].open_count = 0;
+
+ for (i = 0; i < serial->num_bulk_in; ++i) {
+ port = &serial->port[i];
+ if (port->read_urb) {
+ usb_unlink_urb (port->read_urb);
+ usb_free_urb (port->read_urb);
+ }
+ if (port->bulk_in_buffer)
+ kfree (port->bulk_in_buffer);
+ }
+ for (i = 0; i < serial->num_bulk_out; ++i) {
+ port = &serial->port[i];
+ if (port->write_urb) {
+ usb_unlink_urb (port->write_urb);
+ usb_free_urb (port->write_urb);
+ }
+ if (port->bulk_out_buffer)
+ kfree (port->bulk_out_buffer);
+ }
+ for (i = 0; i < serial->num_interrupt_in; ++i) {
+ port = &serial->port[i];
+ if (port->interrupt_in_urb) {
+ usb_unlink_urb (port->interrupt_in_urb);
+ usb_free_urb (port->interrupt_in_urb);
+ }
+ if (port->interrupt_in_buffer)
+ kfree (port->interrupt_in_buffer);
+ }
+
+ for (i = 0; i < serial->num_ports; ++i) {
+ tty_unregister_devfs (&serial_tty_driver, serial->port[i].number);
+ info("%s converter now disconnected from ttyUSB%d", serial->type->name, serial->port[i].number);
+ }
+
+ /* return the minor range that this device had */
+ return_serial (serial);
+
+ /* free up any memory that we allocated */
+ kfree (serial);
+
+ } else {
+ info("device disconnected");
+ }
+
+}
+
+#if 0
+static int sw_attach(struct usb_serial *serial)
+{
+ struct usb_device *hdev = serial->dev;
+ int rc;
+
+ dbg("%s - serial(0x%p)", __FUNCTION__, serial);
+
+ rc = usb_control_msg(
+ hdev,
+ usb_sndctrlpipe(hdev, 0),
+ USB_VENDER_REQUEST_SET_DEVICE_POWER_STATE, /* bRequest */
+ USB_TYPE_VENDOR|USB_RECIP_DEVICE, /* bmRequestType */
+ USB_DEVICE_POWER_STATE_D0, /* wValue */
+ 0, /* wIndex */
+ NULL, /* Data */
+ 0, /* wLength */
+ 1000); /* Timeout */
+
+ err("%s - rc(%d)", __FUNCTION__, rc);
+ return rc;
+}
+#endif
+//void sw_usb_serial_generic_read_bulk_callback (struct urb *urb, struct pt_regs *regs)
+static void sw_usb_serial_generic_read_bulk_callback (struct urb *urb)
+{
+ struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+ struct usb_serial *serial = port->serial;
+ struct tty_struct *tty;
+ unsigned char *data = urb->transfer_buffer;
+ int result;
+ int i;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if (urb->status) {
+ dbg("%s - nonzero read bulk status received: %d", __FUNCTION__, urb->status);
+ return;
+ }
+
+ //usb_serial_dbg_data(__FILE__, __FUNCTION__, urb->actual_length, data);
+
+ tty = port->tty;
+ if (tty && urb->actual_length) {
+ #if 0
+ tty_buffer_request_room(tty, urb->actual_length);
+ tty_insert_flip_string(tty, data, urb->actual_length);
+ tty_flip_buffer_push(tty);
+ #endif
+ #if 1
+ for (i = 0; i < urb->actual_length ; ++i) {
+ /* if we insert more than TTY_FLIPBUF_SIZE characters, we drop them. */
+ if(tty->flip.count >= TTY_FLIPBUF_SIZE) {
+ tty_flip_buffer_push(tty);
+ }
+ /* this doesn't actually push the data through unless tty->low_latency is set */
+ tty_insert_flip_char(tty, data[i], 0);
+ }
+ tty_flip_buffer_push(tty);
+ #endif
+
+ }
+ else
+ dbg("%s: empty read urb received", __FUNCTION__);
+
+ /* Continue trying to always read */
+ usb_fill_bulk_urb (port->read_urb, serial->dev,
+ usb_rcvbulkpipe (serial->dev,
+ port->bulk_in_endpointAddress),
+ port->read_urb->transfer_buffer,
+ port->read_urb->transfer_buffer_length,
+ ((serial->type->read_bulk_callback) ?
+ serial->type->read_bulk_callback :
+ sw_usb_serial_generic_read_bulk_callback), port);
+ result = usb_submit_urb(port->read_urb);
+ //result = usb_submit_urb(port->read_urb, GFP_ATOMIC); //for kernel 2.6
+ if (result)
+ dbg("%s - failed resubmitting read urb, error %d\n", __FUNCTION__, result);
+}
+#if 1
+static int generic_open (struct usb_serial_port *port, struct file *filp)
+{
+ struct usb_serial *serial = port->serial;
+ int result = 0;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ /* force low_latency on so that our tty_push actually forces the data through,
+ otherwise it is scheduled, and with high data rates (like with OHCI) data
+ can get lost. */
+ if (port->tty)
+ port->tty->low_latency = 1;
+
+ /* if we have a bulk interrupt, start reading from it */
+ if (serial->num_bulk_in) {
+ /* Start reading from the device */
+ usb_fill_bulk_urb (port->read_urb, serial->dev,
+ usb_rcvbulkpipe(serial->dev, port->bulk_in_endpointAddress),
+ port->read_urb->transfer_buffer,
+ port->read_urb->transfer_buffer_length,
+ ((serial->type->read_bulk_callback) ?
+ serial->type->read_bulk_callback :
+ sw_usb_serial_generic_read_bulk_callback),
+ port);
+ result = usb_submit_urb(port->read_urb); //, GFP_KERNEL);
+ if (result)
+ //dev_err(&port->dev, "%s - failed resubmitting read urb, error %d\n", __FUNCTION__, result);
+ dbg("%s - failed resubmitting read urb, error %d\n", __FUNCTION__, result);
+
+ }
+
+ return result;
+}
+#endif
+int sw_usb_serial_generic_open (struct usb_serial_port *port, struct file *filp)
+{
+ int rc;
+ struct usb_serial *serial = port->serial;
+ struct usb_device *hdev = serial->dev;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ rc = generic_open(port, filp);
+ err("%s - rc(%d)", __FUNCTION__, rc);
+
+ if(0 == rc)
+ {
+ rc = usb_control_msg(
+ hdev,
+ usb_sndctrlpipe(hdev, 0),
+ SET_CONTROL_LINE_STATE, /* bRequest */
+ USB_TYPE_CLASS|USB_RECIP_INTERFACE, /* bmRequestType */
+ ACM_CTRL_DTR|ACM_CTRL_RTS, /* wValue */
+ 0, /* wIndex */
+ NULL, /* Data */
+ 0, /* wLength */
+ 1000); /* Timeout */
+ err("%s - usb_control_msg: rc(%d)", __FUNCTION__, rc);
+ }
+
+ return rc;
+}
+
+static void generic_cleanup (struct usb_serial_port *port)
+{
+ struct usb_serial *serial = port->serial;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if (serial->dev) {
+ /* shutdown any bulk reads that might be going on */
+ if (serial->num_bulk_out)
+ usb_unlink_urb(port->write_urb);
+ //usb_kill_urb(port->write_urb);
+ if (serial->num_bulk_in)
+ usb_unlink_urb(port->read_urb);
+ //usb_kill_urb(port->read_urb);
+ }
+}
+
+static void sw_usb_serial_generic_close (struct usb_serial_port *port, struct file * filp)
+{
+ int rc;
+ struct usb_serial *serial = port->serial;
+ struct usb_device *hdev = serial->dev;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ rc = usb_control_msg(
+ hdev,
+ usb_sndctrlpipe(hdev, 0),
+ SET_CONTROL_LINE_STATE, /* bRequest */
+ USB_TYPE_CLASS|USB_RECIP_INTERFACE, /* bmRequestType */
+ 0, /* wValue */
+ 0, /* wIndex */
+ NULL, /* Data */
+ 0, /* wLength */
+ 1000); /* Timeout */
+ err("%s - rc(%d)", __FUNCTION__, rc);
+
+ generic_cleanup (port);
+}
+
+static void sw_usb_serial_generic_shutdown(struct usb_serial *serial)
+{
+ int i, rc;
+ struct usb_device *hdev = serial->dev;
+
+ dbg("%s serial(0x%p)", __FUNCTION__, serial);
+
+ if(hdev)
+ {
+ rc = usb_control_msg(
+ hdev,
+ usb_sndctrlpipe(hdev, 0),
+ USB_VENDER_REQUEST_SET_DEVICE_POWER_STATE, /* bRequest */
+ USB_TYPE_VENDOR|USB_RECIP_DEVICE, /* bmRequestType */
+ USB_DEVICE_POWER_STATE_D3, /* wValue */
+ 0, /* wIndex */
+ NULL, /* Data */
+ 0, /* wLength */
+ 1000); /* Timeout */
+ err("%s - rc(%d)", __FUNCTION__, rc);
+ }
+
+ /* stop reads and writes on all ports */
+ for (i=0; i < serial->num_ports; ++i) {
+ generic_cleanup(&serial->port[i]);
+ }
+}
+int usb_serial_register(struct usb_serial_device_type *new_device)
+{
+ /* Add this device to our list of devices */
+ list_add(&new_device->driver_list, &usb_serial_driver_list);
+
+ info ("USB Serial support registered for %s", new_device->name);
+
+ usb_scan_devices();
+
+ return 0;
+}
+
+
+void usb_serial_deregister(struct usb_serial_device_type *device)
+{
+ struct usb_serial *serial;
+ int i;
+
+ info("USB Serial deregistering driver %s", device->name);
+
+ /* clear out the serial_table if the device is attached to a port */
+ for(i = 0; i < SERIAL_TTY_MINORS; ++i) {
+ serial = serial_table[i];
+ if ((serial != NULL) && (serial->type == device)) {
+ usb_driver_release_interface (&sierra_driver, serial->interface);
+ usb_serial_disconnect (NULL, serial);
+ }
+ }
+
+ list_del(&device->driver_list);
+}
+
+static int __init sierra_init(void)
+{
+ int retval;
+ int i;
+
+ /* Initalize our global data */
+ for (i = 0; i < SERIAL_TTY_MINORS; ++i) {
+ serial_table[i] = NULL;
+ }
+
+ /* register the tty driver */
+ serial_tty_driver.init_termios = tty_std_termios;
+ serial_tty_driver.init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+ if (tty_register_driver (&serial_tty_driver)) {
+ err("%s - failed to register tty driver", __FUNCTION__);
+ return -1;
+ }
+
+ retval = usb_serial_register(&sierra_device);
+ if (retval)
+ {
+ tty_unregister_driver(&serial_tty_driver);
+ printk("%s return usb_serial_register. retval=[%d].\n",__FUNCTION__, retval);
+ return retval;
+ }
+ retval = usb_register(&sierra_driver);
+ if (retval){
+ usb_serial_deregister(&sierra_device);
+ tty_unregister_driver(&serial_tty_driver);
+ err("usb_register failed for the Sierra 3G USB-Serial driver. Error number %d\n", retval);
+ return -1;
+ }
+
+ return retval;
+}
+
+static void __exit sierra_exit(void)
+{
+ usb_deregister(&sierra_driver);
+ usb_serial_deregister(&sierra_device);
+}
+
+module_init(sierra_init);
+module_exit(sierra_exit);
+MODULE_LICENSE("GPL");
diff -Naur linux-2.4.35.4-old/drivers/usb/serial/sierra.h linux-2.4.35.4/drivers/usb/serial/sierra.h
--- linux-2.4.35.4-old/drivers/usb/serial/sierra.h 1969-12-31 17:00:00.000000000 -0700
+++ linux-2.4.35.4/drivers/usb/serial/sierra.h 2008-01-25 10:15:35.640743578 -0700
@@ -0,0 +1,32 @@
+/*
+ * Sierra Wireless CDMA Wireless Serial USB drive
+ *
+ * Current Copy modified by: Kevin Lloyd <linux@sierrawireless.com>
+ * Original Copy written by: 2005 Greg Kroah-Hartman <gregkh <at> suse.de>
+ *
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * Version history:
+ Version 1.03 (Lloyd):
+ Included support for DTR control and enhanced buffering (should help
+ speed).
+ */
+
+#define USB_VENDER_REQUEST_SET_DEVICE_POWER_STATE 0
+
+#define USB_DEVICE_POWER_STATE_D0 0x0000
+#define USB_DEVICE_POWER_STATE_D1 0x0001
+#define USB_DEVICE_POWER_STATE_D2 0x0002
+#define USB_DEVICE_POWER_STATE_D3 0x0003
+
+#define SET_CONTROL_LINE_STATE 0x22
+/*
+ * Output control lines.
+ */
+
+#define ACM_CTRL_DTR 0x01
+#define ACM_CTRL_RTS 0x02
+
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