自己写linux usb转串口 驱动
在本机运行可以直接make，在开发板上运行，需要用交叉编译。
文件一：
bus.c
/*
* USB Serial Converter Bus specific functions
*
* 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 version
* 2 as published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/tty.h>
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
static int usb_serial_device_match(struct device *dev,
struct device_driver *drv)
{
struct usb_serial_driver *driver;
const struct usb_serial_port *port;
/*
* drivers are already assigned to ports in serial_probe so it's
* a simple check here.
*/
port = to_usb_serial_port(dev);
if (!port)
return 0;
driver = to_usb_serial_driver(drv);
if (driver == port->serial->type)
return 1;
return 0;
}
static ssize_t show_port_number(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct usb_serial_port *port = to_usb_serial_port(dev);
return sprintf(buf, "%d\n", port->number - port->serial->minor);
}
static DEVICE_ATTR(port_number, S_IRUGO, show_port_number, NULL);
static int usb_serial_device_probe(struct device *dev)
{
struct usb_serial_driver *driver;
struct usb_serial_port *port;
int retval = 0;
int minor;
port = to_usb_serial_port(dev);
if (!port) {
retval = -ENODEV;
goto exit;
}
if (port->dev_state != PORT_REGISTERING)
goto exit;
driver = port->serial->type;
if (driver->port_probe) {
retval = driver->port_probe(port);
if (retval)
goto exit;
}
retval = device_create_file(dev, &dev_attr_port_number);
if (retval) {
if (driver->port_remove)
retval = driver->port_remove(port);
goto exit;
}
minor = port->number;
tty_register_device(usb_serial_tty_driver, minor, dev);
dev_info(&port->serial->dev->dev,
"%s converter now attached to ttyUSB%d\n",
driver->description, minor);
exit:
return retval;
}
static int usb_serial_device_remove(struct device *dev)
{
struct usb_serial_driver *driver;
struct usb_serial_port *port;
int retval = 0;
int minor;
port = to_usb_serial_port(dev);
if (!port)
return -ENODEV;
if (port->dev_state != PORT_UNREGISTERING)
return retval;
device_remove_file(&port->dev, &dev_attr_port_number);
driver = port->serial->type;
if (driver->port_remove)
retval = driver->port_remove(port);
minor = port->number;
tty_unregister_device(usb_serial_tty_driver, minor);
dev_info(dev, "%s converter now disconnected from ttyUSB%d\n",
driver->description, minor);
return retval;
}
#ifdef CONFIG_HOTPLUG
static ssize_t store_new_id(struct device_driver *driver,
const char *buf, size_t count)
{
struct usb_serial_driver *usb_drv = to_usb_serial_driver(driver);
ssize_t retval = usb_store_new_id(&usb_drv->dynids, driver, buf, count);
if (retval >= 0 && usb_drv->usb_driver != NULL)
retval = usb_store_new_id(&usb_drv->usb_driver->dynids,
&usb_drv->usb_driver->drvwrap.driver,
buf, count);
return retval;
}
static struct driver_attribute drv_attrs[] = {
__ATTR(new_id, S_IWUSR, NULL, store_new_id),
__ATTR_NULL,
};
static void free_dynids(struct usb_serial_driver *drv)
{
struct usb_dynid *dynid, *n;
spin_lock(&drv->dynids.lock);
list_for_each_entry_safe(dynid, n, &drv->dynids.list, node) {
list_del(&dynid->node);
kfree(dynid);
}
spin_unlock(&drv->dynids.lock);
}
#else
static struct driver_attribute drv_attrs[] = {
__ATTR_NULL,
};
static inline void free_dynids(struct usb_serial_driver *drv)
{
}
#endif
struct bus_type usb_serial_bus_type = {
.name = "usb-serial",
.match = usb_serial_device_match,
.probe = usb_serial_device_probe,
.remove = usb_serial_device_remove,
.drv_attrs = drv_attrs,
};
int usb_serial_bus_register(struct usb_serial_driver *driver)
{
int retval;
driver->driver.bus = &usb_serial_bus_type;
spin_lock_init(&driver->dynids.lock);
INIT_LIST_HEAD(&driver->dynids.list);
retval = driver_register(&driver->driver);
return retval;
}
void usb_serial_bus_deregister(struct usb_serial_driver *driver)
{
free_dynids(driver);
driver_unregister(&driver->driver);
}
文件二：
generic.c
/*
* USB Serial Converter Generic functions
*
* Copyright (C) 1999 - 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 version
* 2 as published by the Free Software Foundation.
*
*/
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
#include <linux/uaccess.h>
#include <linux/kfifo.h>
static int debug;
#ifdef CONFIG_USB_SERIAL_GENERIC
static int generic_probe(struct usb_interface *interface,
const struct usb_device_id *id);
static __u16 vendor = 0x05f9;
static __u16 product = 0xffff;
module_param(vendor, ushort, 0);
MODULE_PARM_DESC(vendor, "User specified USB idVendor");
module_param(product, ushort, 0);
MODULE_PARM_DESC(product, "User specified USB idProduct");
static struct usb_device_id generic_device_ids[2]; /* Initially all zeroes. */
/* we want to look at all devices, as the vendor/product id can change
* depending on the command line argument */
static struct usb_device_id generic_serial_ids[] = {
{.driver_info = 42},
{}
};
static struct usb_driver generic_driver = {
.name = "usbserial_generic",
.probe = generic_probe,
.disconnect = usb_serial_disconnect,
.id_table = generic_serial_ids,
.no_dynamic_id = 1,
};
/* All of the device info needed for the Generic Serial Converter */
struct usb_serial_driver usb_serial_generic_device = {
.driver = {
.owner = THIS_MODULE,
.name = "generic",
},
.id_table = generic_device_ids,
.usb_driver = &generic_driver,
.num_ports = 1,
.disconnect = usb_serial_generic_disconnect,
.release = usb_serial_generic_release,
.throttle = usb_serial_generic_throttle,
.unthrottle = usb_serial_generic_unthrottle,
.resume = usb_serial_generic_resume,
};
static int generic_probe(struct usb_interface *interface,
const struct usb_device_id *id)
{
const struct usb_device_id *id_pattern;
id_pattern = usb_match_id(interface, generic_device_ids);
if (id_pattern != NULL)
return usb_serial_probe(interface, id);
return -ENODEV;
}
#endif
int usb_serial_generic_register(int _debug)
{
int retval = 0;
debug = _debug;
#ifdef CONFIG_USB_SERIAL_GENERIC
generic_device_ids[0].idVendor = vendor;
generic_device_ids[0].idProduct = product;
generic_device_ids[0].match_flags =
USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_PRODUCT;
/* register our generic driver with ourselves */
retval = usb_serial_register(&usb_serial_generic_device);
if (retval)
goto exit;
retval = usb_register(&generic_driver);
if (retval)
usb_serial_deregister(&usb_serial_generic_device);
exit:
#endif
return retval;
}
void usb_serial_generic_deregister(void)
{
#ifdef CONFIG_USB_SERIAL_GENERIC
/* remove our generic driver */
usb_deregister(&generic_driver);
usb_serial_deregister(&usb_serial_generic_device);
#endif
}
int usb_serial_generic_open(struct tty_struct *tty, struct usb_serial_port *port)
{
struct usb_serial *serial = port->serial;
int result = 0;
unsigned long flags;
dbg("%s - port %d", __func__, port->number);
/* clear the throttle flags */
spin_lock_irqsave(&port->lock, flags);
port->throttled = 0;
port->throttle_req = 0;
spin_unlock_irqrestore(&port->lock, flags);
/* if we have a bulk endpoint, 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 :
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",
__func__, result);
}
return result;
}
EXPORT_SYMBOL_GPL(usb_serial_generic_open);
static void generic_cleanup(struct usb_serial_port *port)
{
struct usb_serial *serial = port->serial;
dbg("%s - port %d", __func__, port->number);
if (serial->dev) {
/* shutdown any bulk reads that might be going on */
if (serial->num_bulk_out)
usb_kill_urb(port->write_urb);
if (serial->num_bulk_in)
usb_kill_urb(port->read_urb);
}
}
void usb_serial_generic_close(struct usb_serial_port *port)
{
dbg("%s - port %d", __func__, port->number);
generic_cleanup(port);
}
static int usb_serial_multi_urb_write(struct tty_struct *tty,
struct usb_serial_port *port, const unsigned char *buf, int count)
{
unsigned long flags;
struct urb *urb;
unsigned char *buffer;
int status;
int towrite;
int bwrite = 0;
dbg("%s - port %d", __func__, port->number);
if (count == 0)
dbg("%s - write request of 0 bytes", __func__);
while (count > 0) {
towrite = (count > port->bulk_out_size) ?
port->bulk_out_size : count;
spin_lock_irqsave(&port->lock, flags);
if (port->urbs_in_flight >
port->serial->type->max_in_flight_urbs) {
spin_unlock_irqrestore(&port->lock, flags);
dbg("%s - write limit hit\n", __func__);
return bwrite;
}
port->tx_bytes_flight += towrite;
port->urbs_in_flight++;
spin_unlock_irqrestore(&port->lock, flags);
buffer = kmalloc(towrite, GFP_ATOMIC);
if (!buffer) {
dev_err(&port->dev,
"%s ran out of kernel memory for urb ...\n", __func__);
goto error_no_buffer;
}
urb = usb_alloc_urb(0, GFP_ATOMIC);
if (!urb) {
dev_err(&port->dev, "%s - no more free urbs\n",
__func__);
goto error_no_urb;
}
/* Copy data */
memcpy(buffer, buf + bwrite, towrite);
usb_serial_debug_data(debug, &port->dev, __func__,
towrite, buffer);
/* fill the buffer and send it */
usb_fill_bulk_urb(urb, port->serial->dev,
usb_sndbulkpipe(port->serial->dev,
port->bulk_out_endpointAddress),
buffer, towrite,
usb_serial_generic_write_bulk_callback, port);
status = usb_submit_urb(urb, GFP_ATOMIC);
if (status) {
dev_err(&port->dev,
"%s - failed submitting write urb, error %d\n",
__func__, status);
goto error;
}
/* This urb is the responsibility of the host driver now */
usb_free_urb(urb);
dbg("%s write: %d", __func__, towrite);
count -= towrite;
bwrite += towrite;
}
return bwrite;
error:
usb_free_urb(urb);
error_no_urb:
kfree(buffer);
error_no_buffer:
spin_lock_irqsave(&port->lock, flags);
port->urbs_in_flight--;
port->tx_bytes_flight -= towrite;
spin_unlock_irqrestore(&port->lock, flags);
return bwrite;
}
/**
* usb_serial_generic_write_start - kick off an URB write
* @port: Pointer to the &struct usb_serial_port data
*
* Returns the number of bytes queued on success. This will be zero if there
* was nothing to send. Otherwise, it returns a negative errno value
*/
static int usb_serial_generic_write_start(struct usb_serial_port *port)
{
struct usb_serial *serial = port->serial;
unsigned char *data;
int result;
int count;
unsigned long flags;
bool start_io;
/* Atomically determine whether we can and need to start a USB
* operation. */
spin_lock_irqsave(&port->lock, flags);
if (port->write_urb_busy)
start_io = false;
else {
start_io = (__kfifo_len(port->write_fifo) != 0);
port->write_urb_busy = start_io;
}
spin_unlock_irqrestore(&port->lock, flags);
if (!start_io)
return 0;
data = port->write_urb->transfer_buffer;
count = kfifo_get(port->write_fifo, data, port->bulk_out_size);
usb_serial_debug_data(debug, &port->dev, __func__, count, data);
/* 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 :
usb_serial_generic_write_bulk_callback),
port);
/* send the data out the bulk port */
result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
if (result) {
dev_err(&port->dev,
"%s - failed submitting write urb, error %d\n",
__func__, result);
/* don't have to grab the lock here, as we will
retry if != 0 */
port->write_urb_busy = 0;
} else
result = count;
return result;
}
/**
* usb_serial_generic_write - generic write function for serial USB devices
* @tty: Pointer to &struct tty_struct for the device
* @port: Pointer to the &usb_serial_port structure for the device
* @buf: Pointer to the data to write
* @count: Number of bytes to write
*
* Returns the number of characters actually written, which may be anything
* from zero to @count. If an error occurs, it returns the negative errno
* value.
*/
int usb_serial_generic_write(struct tty_struct *tty,
struct usb_serial_port *port, const unsigned char *buf, int count)
{
struct usb_serial *serial = port->serial;
int result;
dbg("%s - port %d", __func__, port->number);
if (count == 0) {
dbg("%s - write request of 0 bytes", __func__);
return 0;
}
/* only do something if we have a bulk out endpoint */
if (!serial->num_bulk_out)
return 0;
if (serial->type->max_in_flight_urbs)
return usb_serial_multi_urb_write(tty, port,
buf, count);
count = kfifo_put(port->write_fifo, buf, count);
result = usb_serial_generic_write_start(port);
if (result >= 0)
result = count;
return result;
}
EXPORT_SYMBOL_GPL(usb_serial_generic_write);
int usb_serial_generic_write_room(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct usb_serial *serial = port->serial;
unsigned long flags;
int room = 0;
dbg("%s - port %d", __func__, port->number);
spin_lock_irqsave(&port->lock, flags);
if (serial->type->max_in_flight_urbs) {
if (port->urbs_in_flight < serial->type->max_in_flight_urbs)
room = port->bulk_out_size *
(serial->type->max_in_flight_urbs -
port->urbs_in_flight);
} else if (serial->num_bulk_out)
room = port->write_fifo->size - __kfifo_len(port->write_fifo);
spin_unlock_irqrestore(&port->lock, flags);
dbg("%s - returns %d", __func__, room);
return room;
}
int usb_serial_generic_chars_in_buffer(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct usb_serial *serial = port->serial;
int chars = 0;
unsigned long flags;
dbg("%s - port %d", __func__, port->number);
if (serial->type->max_in_flight_urbs) {
spin_lock_irqsave(&port->lock, flags);
chars = port->tx_bytes_flight;
spin_unlock_irqrestore(&port->lock, flags);
} else if (serial->num_bulk_out)
chars = kfifo_len(port->write_fifo);
dbg("%s - returns %d", __func__, chars);
return chars;
}
void usb_serial_generic_resubmit_read_urb(struct usb_serial_port *port,
gfp_t mem_flags)
{
struct urb *urb = port->read_urb;
struct usb_serial *serial = port->serial;
int result;
/* Continue reading from device */
usb_fill_bulk_urb(urb, serial->dev,
usb_rcvbulkpipe(serial->dev,
port->bulk_in_endpointAddress),
urb->transfer_buffer,
urb->transfer_buffer_length,
((serial->type->read_bulk_callback) ?
serial->type->read_bulk_callback :
usb_serial_generic_read_bulk_callback), port);
result = usb_submit_urb(urb, mem_flags);
if (result)
dev_err(&port->dev,
"%s - failed resubmitting read urb, error %d\n",
__func__, result);
}
EXPORT_SYMBOL_GPL(usb_serial_generic_resubmit_read_urb);
/* Push data to tty layer and resubmit the bulk read URB */
static void flush_and_resubmit_read_urb(struct usb_serial_port *port)
{
struct urb *urb = port->read_urb;
struct tty_struct *tty = tty_port_tty_get(&port->port);
char *ch = (char *)urb->transfer_buffer;
int i;
if (!tty)
goto done;
/* The per character mucking around with sysrq path it too slow for
stuff like 3G modems, so shortcircuit it in the 99.9999999% of cases
where the USB serial is not a console anyway */
if (!port->console || !port->sysrq)
tty_insert_flip_string(tty, ch, urb->actual_length);
else {
/* Push data to tty */
for (i = 0; i < urb->actual_length; i++, ch++) {
if (!usb_serial_handle_sysrq_char(tty, port, *ch))
tty_insert_flip_char(tty, *ch, TTY_NORMAL);
}
}
tty_flip_buffer_push(tty);
tty_kref_put(tty);
done:
usb_serial_generic_resubmit_read_urb(port, GFP_ATOMIC);
}
void usb_serial_generic_read_bulk_callback(struct urb *urb)
{
struct usb_serial_port *port = urb->context;
unsigned char *data = urb->transfer_buffer;
int status = urb->status;
unsigned long flags;
dbg("%s - port %d", __func__, port->number);
if (unlikely(status != 0)) {
dbg("%s - nonzero read bulk status received: %d",
__func__, status);
return;
}
usb_serial_debug_data(debug, &port->dev, __func__,
urb->actual_length, data);
/* Throttle the device if requested by tty */
spin_lock_irqsave(&port->lock, flags);
port->throttled = port->throttle_req;
if (!port->throttled) {
spin_unlock_irqrestore(&port->lock, flags);
flush_and_resubmit_read_urb(port);
} else
spin_unlock_irqrestore(&port->lock, flags);
}
EXPORT_SYMBOL_GPL(usb_serial_generic_read_bulk_callback);
void usb_serial_generic_write_bulk_callback(struct urb *urb)
{
unsigned long flags;
struct usb_serial_port *port = urb->context;
int status = urb->status;
dbg("%s - port %d", __func__, port->number);
if (port->serial->type->max_in_flight_urbs) {
spin_lock_irqsave(&port->lock, flags);
--port->urbs_in_flight;
port->tx_bytes_flight -= urb->transfer_buffer_length;
if (port->urbs_in_flight < 0)
port->urbs_in_flight = 0;
spin_unlock_irqrestore(&port->lock, flags);
if (status) {
dbg("%s - nonzero multi-urb write bulk status "
"received: %d", __func__, status);
return;
}
} else {
port->write_urb_busy = 0;
if (status) {
dbg("%s - nonzero multi-urb write bulk status "
"received: %d", __func__, status);
kfifo_reset(port->write_fifo);
} else
usb_serial_generic_write_start(port);
}
usb_serial_port_softint(port);
}
EXPORT_SYMBOL_GPL(usb_serial_generic_write_bulk_callback);
void usb_serial_generic_throttle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
unsigned long flags;
dbg("%s - port %d", __func__, port->number);
/* Set the throttle request flag. It will be picked up
* by usb_serial_generic_read_bulk_callback(). */
spin_lock_irqsave(&port->lock, flags);
port->throttle_req = 1;
spin_unlock_irqrestore(&port->lock, flags);
}
void usb_serial_generic_unthrottle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
int was_throttled;
unsigned long flags;
dbg("%s - port %d", __func__, port->number);
/* Clear the throttle flags */
spin_lock_irqsave(&port->lock, flags);
was_throttled = port->throttled;
port->throttled = port->throttle_req = 0;
spin_unlock_irqrestore(&port->lock, flags);
if (was_throttled) {
/* Resume reading from device */
flush_and_resubmit_read_urb(port);
}
}
int usb_serial_handle_sysrq_char(struct tty_struct *tty,
struct usb_serial_port *port, unsigned int ch)
{
if (port->sysrq && port->console) {
if (ch && time_before(jiffies, port->sysrq)) {
handle_sysrq(ch, tty);
port->sysrq = 0;
return 1;
}
port->sysrq = 0;
}
return 0;
}
EXPORT_SYMBOL_GPL(usb_serial_handle_sysrq_char);
int usb_serial_handle_break(struct usb_serial_port *port)
{
if (!port->sysrq) {
port->sysrq = jiffies + HZ*5;
return 1;
}
port->sysrq = 0;
return 0;
}
EXPORT_SYMBOL_GPL(usb_serial_handle_break);
int usb_serial_generic_resume(struct usb_serial *serial)
{
struct usb_serial_port *port;
int i, c = 0, r;
for (i = 0; i < serial->num_ports; i++) {
port = serial->port[i];
if (!port->port.count)
continue;
if (port->read_urb) {
r = usb_submit_urb(port->read_urb, GFP_NOIO);
if (r < 0)
c++;
}
if (port->write_urb) {
r = usb_serial_generic_write_start(port);
if (r < 0)
c++;
}
}
return c ? -EIO : 0;
}
EXPORT_SYMBOL_GPL(usb_serial_generic_resume);
void usb_serial_generic_disconnect(struct usb_serial *serial)
{
int i;
dbg("%s", __func__);
/* stop reads and writes on all ports */
for (i = 0; i < serial->num_ports; ++i)
generic_cleanup(serial->port[i]);
}
void usb_serial_generic_release(struct usb_serial *serial)
{
dbg("%s", __func__);
}
文件三：
option.c
/*
USB Driver for GSM modems
Copyright (C) 2005 Matthias Urlichs <smurf@smurf.noris.de>
This driver is free software; you can redistribute it and/or modify
it under the terms of Version 2 of the GNU General Public License as
published by the Free Software Foundation.
Portions copied from the Keyspan driver by Hugh Blemings <hugh@blemings.org>
History: see the git log.
Work sponsored by: Sigos GmbH, Germany <info@sigos.de>
This driver exists because the "normal" serial driver doesn't work too well
with GSM modems. Issues:
- data loss -- one single Receive URB is not nearly enough
- nonstandard flow (Option devices) control
- controlling the baud rate doesn't make sense
This driver is named "option" because the most common device it's
used for is a PC-Card (with an internal OHCI-USB interface, behind
which the GSM interface sits), made by Option Inc.
Some of the "one port" devices actually exhibit multiple USB instances
on the USB bus. This is not a bug, these ports are used for different
device features.
*/
#define DRIVER_VERSION "v0.7.2"
#define DRIVER_AUTHOR "Matthias Urlichs <smurf@smurf.noris.de>"
#define DRIVER_DESC "USB Driver for GSM modems"
#include <linux/kernel.h>
#include <linux/jiffies.h>
#include <linux/errno.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/module.h>
#include <linux/bitops.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
/* Function prototypes */
static int option_probe(struct usb_serial *serial,
const struct usb_device_id *id);
static int option_open(struct tty_struct *tty, struct usb_serial_port *port);
static void option_close(struct usb_serial_port *port);
static void option_dtr_rts(struct usb_serial_port *port, int on);
static int option_startup(struct usb_serial *serial);
static void option_disconnect(struct usb_serial *serial);
static void option_release(struct usb_serial *serial);
static int option_write_room(struct tty_struct *tty);
static void option_instat_callback(struct urb *urb);
static int option_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf, int count);
static int option_chars_in_buffer(struct tty_struct *tty);
static void option_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios *old);
static int option_tiocmget(struct tty_struct *tty, struct file *file);
static int option_tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear);
static int option_send_setup(struct usb_serial_port *port);
#ifdef CONFIG_PM
static int option_suspend(struct usb_serial *serial, pm_message_t message);
static int option_resume(struct usb_serial *serial);
#endif
/* Vendor and product IDs */
#define OPTION_VENDOR_ID 0x0AF0
#define OPTION_PRODUCT_COLT 0x5000
#define OPTION_PRODUCT_RICOLA 0x6000
#define OPTION_PRODUCT_RICOLA_LIGHT 0x6100
#define OPTION_PRODUCT_RICOLA_QUAD 0x6200
#define OPTION_PRODUCT_RICOLA_QUAD_LIGHT 0x6300
#define OPTION_PRODUCT_RICOLA_NDIS 0x6050
#define OPTION_PRODUCT_RICOLA_NDIS_LIGHT 0x6150
#define OPTION_PRODUCT_RICOLA_NDIS_QUAD 0x6250
#define OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT 0x6350
#define OPTION_PRODUCT_COBRA 0x6500
#define OPTION_PRODUCT_COBRA_BUS 0x6501
#define OPTION_PRODUCT_VIPER 0x6600
#define OPTION_PRODUCT_VIPER_BUS 0x6601
#define OPTION_PRODUCT_GT_MAX_READY 0x6701
#define OPTION_PRODUCT_FUJI_MODEM_LIGHT 0x6721
#define OPTION_PRODUCT_FUJI_MODEM_GT 0x6741
#define OPTION_PRODUCT_FUJI_MODEM_EX 0x6761
#define OPTION_PRODUCT_KOI_MODEM 0x6800
#define OPTION_PRODUCT_SCORPION_MODEM 0x6901
#define OPTION_PRODUCT_ETNA_MODEM 0x7001
#define OPTION_PRODUCT_ETNA_MODEM_LITE 0x7021
#define OPTION_PRODUCT_ETNA_MODEM_GT 0x7041
#define OPTION_PRODUCT_ETNA_MODEM_EX 0x7061
#define OPTION_PRODUCT_ETNA_KOI_MODEM 0x7100
#define OPTION_PRODUCT_GTM380_MODEM 0x7201
#define HUAWEI_VENDOR_ID 0x12D1
#define HUAWEI_PRODUCT_E600 0x1001
#define HUAWEI_PRODUCT_E220 0x1003
#define HUAWEI_PRODUCT_E220BIS 0x1004
#define HUAWEI_PRODUCT_E1401 0x1401
#define HUAWEI_PRODUCT_E1402 0x1402
#define HUAWEI_PRODUCT_E1403 0x1403
#define HUAWEI_PRODUCT_E1404 0x1404
#define HUAWEI_PRODUCT_E1405 0x1405
#define HUAWEI_PRODUCT_E1406 0x1406
#define HUAWEI_PRODUCT_E1407 0x1407
#define HUAWEI_PRODUCT_E1408 0x1408
#define HUAWEI_PRODUCT_E1409 0x1409
#define HUAWEI_PRODUCT_E140A 0x140A
#define HUAWEI_PRODUCT_E140B 0x140B
#define HUAWEI_PRODUCT_E140C 0x140C
#define HUAWEI_PRODUCT_E140D 0x140D
#define HUAWEI_PRODUCT_E140E 0x140E
#define HUAWEI_PRODUCT_E140F 0x140F
#define HUAWEI_PRODUCT_E1410 0x1410
#define HUAWEI_PRODUCT_E1411 0x1411
#define HUAWEI_PRODUCT_E1412 0x1412
#define HUAWEI_PRODUCT_E1413 0x1413
#define HUAWEI_PRODUCT_E1414 0x1414
#define HUAWEI_PRODUCT_E1415 0x1415
#define HUAWEI_PRODUCT_E1416 0x1416
#define HUAWEI_PRODUCT_E1417 0x1417
#define HUAWEI_PRODUCT_E1418 0x1418
#define HUAWEI_PRODUCT_E1419 0x1419
#define HUAWEI_PRODUCT_E141A 0x141A
#define HUAWEI_PRODUCT_E141B 0x141B
#define HUAWEI_PRODUCT_E141C 0x141C
#define HUAWEI_PRODUCT_E141D 0x141D
#define HUAWEI_PRODUCT_E141E 0x141E
#define HUAWEI_PRODUCT_E141F 0x141F
#define HUAWEI_PRODUCT_E1420 0x1420
#define HUAWEI_PRODUCT_E1421 0x1421
#define HUAWEI_PRODUCT_E1422 0x1422
#define HUAWEI_PRODUCT_E1423 0x1423
#define HUAWEI_PRODUCT_E1424 0x1424
#define HUAWEI_PRODUCT_E1425 0x1425
#define HUAWEI_PRODUCT_E1426 0x1426
#define HUAWEI_PRODUCT_E1427 0x1427
#define HUAWEI_PRODUCT_E1428 0x1428
#define HUAWEI_PRODUCT_E1429 0x1429
#define HUAWEI_PRODUCT_E142A 0x142A
#define HUAWEI_PRODUCT_E142B 0x142B
#define HUAWEI_PRODUCT_E142C 0x142C
#define HUAWEI_PRODUCT_E142D 0x142D
#define HUAWEI_PRODUCT_E142E 0x142E
#define HUAWEI_PRODUCT_E142F 0x142F
#define HUAWEI_PRODUCT_E1430 0x1430
#define HUAWEI_PRODUCT_E1431 0x1431
#define HUAWEI_PRODUCT_E1432 0x1432
#define HUAWEI_PRODUCT_E1433 0x1433
#define HUAWEI_PRODUCT_E1434 0x1434
#define HUAWEI_PRODUCT_E1435 0x1435
#define HUAWEI_PRODUCT_E1436 0x1436
#define HUAWEI_PRODUCT_E1437 0x1437
#define HUAWEI_PRODUCT_E1438 0x1438
#define HUAWEI_PRODUCT_E1439 0x1439
#define HUAWEI_PRODUCT_E143A 0x143A
#define HUAWEI_PRODUCT_E143B 0x143B
#define HUAWEI_PRODUCT_E143C 0x143C
#define HUAWEI_PRODUCT_E143D 0x143D
#define HUAWEI_PRODUCT_E143E 0x143E
#define HUAWEI_PRODUCT_E143F 0x143F
#define HUAWEI_PRODUCT_E14AC 0x14AC
#define QUANTA_VENDOR_ID 0x0408
#define QUANTA_PRODUCT_Q101 0xEA02
#define QUANTA_PRODUCT_Q111 0xEA03
#define QUANTA_PRODUCT_GLX 0xEA04
#define QUANTA_PRODUCT_GKE 0xEA05
#define QUANTA_PRODUCT_GLE 0xEA06
#define NOVATELWIRELESS_VENDOR_ID 0x1410
/* YISO PRODUCTS */
#define YISO_VENDOR_ID 0x0EAB
#define YISO_PRODUCT_U893 0xC893
/* MERLIN EVDO PRODUCTS */
#define NOVATELWIRELESS_PRODUCT_V640 0x1100
#define NOVATELWIRELESS_PRODUCT_V620 0x1110
#define NOVATELWIRELESS_PRODUCT_V740 0x1120
#define NOVATELWIRELESS_PRODUCT_V720 0x1130
/* MERLIN HSDPA/HSPA PRODUCTS */
#define NOVATELWIRELESS_PRODUCT_U730 0x1400
#define NOVATELWIRELESS_PRODUCT_U740 0x1410
#define NOVATELWIRELESS_PRODUCT_U870 0x1420
#define NOVATELWIRELESS_PRODUCT_XU870 0x1430
#define NOVATELWIRELESS_PRODUCT_X950D 0x1450
/* EXPEDITE PRODUCTS */
#define NOVATELWIRELESS_PRODUCT_EV620 0x2100
#define NOVATELWIRELESS_PRODUCT_ES720 0x2110
#define NOVATELWIRELESS_PRODUCT_E725 0x2120
#define NOVATELWIRELESS_PRODUCT_ES620 0x2130
#define NOVATELWIRELESS_PRODUCT_EU730 0x2400
#define NOVATELWIRELESS_PRODUCT_EU740 0x2410
#define NOVATELWIRELESS_PRODUCT_EU870D 0x2420
/* OVATION PRODUCTS */
#define NOVATELWIRELESS_PRODUCT_MC727 0x4100
#define NOVATELWIRELESS_PRODUCT_MC950D 0x4400
#define NOVATELWIRELESS_PRODUCT_U727 0x5010
#define NOVATELWIRELESS_PRODUCT_MC727_NEW 0x5100
#define NOVATELWIRELESS_PRODUCT_MC760 0x6000
#define NOVATELWIRELESS_PRODUCT_OVMC760 0x6002
/* FUTURE NOVATEL PRODUCTS */
#define NOVATELWIRELESS_PRODUCT_EVDO_HIGHSPEED 0X6001
#define NOVATELWIRELESS_PRODUCT_HSPA_FULLSPEED 0X7000
#define NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED 0X7001
#define NOVATELWIRELESS_PRODUCT_EVDO_EMBEDDED_FULLSPEED 0X8000
#define NOVATELWIRELESS_PRODUCT_EVDO_EMBEDDED_HIGHSPEED 0X8001
#define NOVATELWIRELESS_PRODUCT_HSPA_EMBEDDED_FULLSPEED 0X9000
#define NOVATELWIRELESS_PRODUCT_HSPA_EMBEDDED_HIGHSPEED 0X9001
#define NOVATELWIRELESS_PRODUCT_GLOBAL 0XA001
/* AMOI PRODUCTS */
#define AMOI_VENDOR_ID 0x1614
#define AMOI_PRODUCT_H01 0x0800
#define AMOI_PRODUCT_H01A 0x7002
#define AMOI_PRODUCT_H02 0x0802
#define DELL_VENDOR_ID 0x413C
/* Dell modems */
#define DELL_PRODUCT_5700_MINICARD 0x8114
#define DELL_PRODUCT_5500_MINICARD 0x8115
#define DELL_PRODUCT_5505_MINICARD 0x8116
#define DELL_PRODUCT_5700_EXPRESSCARD 0x8117
#define DELL_PRODUCT_5510_EXPRESSCARD 0x8118
#define DELL_PRODUCT_5700_MINICARD_SPRINT 0x8128
#define DELL_PRODUCT_5700_MINICARD_TELUS 0x8129
#define DELL_PRODUCT_5720_MINICARD_VZW 0x8133
#define DELL_PRODUCT_5720_MINICARD_SPRINT 0x8134
#define DELL_PRODUCT_5720_MINICARD_TELUS 0x8135
#define DELL_PRODUCT_5520_MINICARD_CINGULAR 0x8136
#define DELL_PRODUCT_5520_MINICARD_GENERIC_L 0x8137
#define DELL_PRODUCT_5520_MINICARD_GENERIC_I 0x8138
#define DELL_PRODUCT_5730_MINICARD_SPRINT 0x8180
#define DELL_PRODUCT_5730_MINICARD_TELUS 0x8181
#define DELL_PRODUCT_5730_MINICARD_VZW 0x8182
#define KYOCERA_VENDOR_ID 0x0c88
#define KYOCERA_PRODUCT_KPC650 0x17da
#define KYOCERA_PRODUCT_KPC680 0x180a
#define ANYDATA_VENDOR_ID 0x16d5
#define ANYDATA_PRODUCT_ADU_620UW 0x6202
#define ANYDATA_PRODUCT_ADU_E100A 0x6501
#define ANYDATA_PRODUCT_ADU_500A 0x6502
#define AXESSTEL_VENDOR_ID 0x1726
#define AXESSTEL_PRODUCT_MV110H 0x1000
#define BANDRICH_VENDOR_ID 0x1A8D
#define BANDRICH_PRODUCT_C100_1 0x1002
#define BANDRICH_PRODUCT_C100_2 0x1003
#define BANDRICH_PRODUCT_1004 0x1004
#define BANDRICH_PRODUCT_1005 0x1005
#define BANDRICH_PRODUCT_1006 0x1006
#define BANDRICH_PRODUCT_1007 0x1007
#define BANDRICH_PRODUCT_1008 0x1008
#define BANDRICH_PRODUCT_1009 0x1009
#define BANDRICH_PRODUCT_100A 0x100a
#define BANDRICH_PRODUCT_100B 0x100b
#define BANDRICH_PRODUCT_100C 0x100c
#define BANDRICH_PRODUCT_100D 0x100d
#define BANDRICH_PRODUCT_100E 0x100e
#define BANDRICH_PRODUCT_100F 0x100f
#define BANDRICH_PRODUCT_1010 0x1010
#define BANDRICH_PRODUCT_1011 0x1011
#define BANDRICH_PRODUCT_1012 0x1012
#define AMOI_VENDOR_ID 0x1614
#define AMOI_PRODUCT_9508 0x0800
#define QUALCOMM_VENDOR_ID 0x05C6
#define MAXON_VENDOR_ID 0x16d8
#define TELIT_VENDOR_ID 0x1bc7
#define TELIT_PRODUCT_UC864E 0x1003
#define TELIT_PRODUCT_UC864G 0x1004
/* ZTE PRODUCTS */
#define ZTE_VENDOR_ID 0x19d2
#define ZTE_PRODUCT_MF622 0x0001
#define ZTE_PRODUCT_MF628 0x0015
#define ZTE_PRODUCT_MF626 0x0031
#define ZTE_PRODUCT_CDMA_TECH 0xfffe
#define ZTE_PRODUCT_AC8710 0xfff1
#define ZTE_PRODUCT_AC2726 0xfff5
#define BENQ_VENDOR_ID 0x04a5
#define BENQ_PRODUCT_H10 0x4068
#define DLINK_VENDOR_ID 0x1186
#define DLINK_PRODUCT_DWM_652 0x3e04
#define DLINK_PRODUCT_DWM_652_U5 0xce16
#define QISDA_VENDOR_ID 0x1da5
#define QISDA_PRODUCT_H21_4512 0x4512
#define QISDA_PRODUCT_H21_4523 0x4523
#define QISDA_PRODUCT_H20_4515 0x4515
#define QISDA_PRODUCT_H20_4519 0x4519
/* TLAYTECH PRODUCTS */
#define TLAYTECH_VENDOR_ID 0x20B9
#define TLAYTECH_PRODUCT_TEU800 0x1682
/* TOSHIBA PRODUCTS */
#define TOSHIBA_VENDOR_ID 0x0930
#define TOSHIBA_PRODUCT_HSDPA_MINICARD 0x1302
#define TOSHIBA_PRODUCT_G450 0x0d45
#define ALINK_VENDOR_ID 0x1e0e
#define ALINK_PRODUCT_3GU 0x9200
/* ALCATEL PRODUCTS */
#define ALCATEL_VENDOR_ID 0x1bbb
#define ALCATEL_PRODUCT_X060S 0x0000
/* Airplus products */
#define AIRPLUS_VENDOR_ID 0x1011
#define AIRPLUS_PRODUCT_MCD650 0x3198
/* 4G Systems products */
#define FOUR_G_SYSTEMS_VENDOR_ID 0x1c9e
#define FOUR_G_SYSTEMS_PRODUCT_W14 0x9603
static struct usb_device_id option_ids[] = {
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_LIGHT) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD_LIGHT) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_LIGHT) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA_BUS) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER_BUS) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX_READY) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_LIGHT) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_GT) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_EX) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_MODEM) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_MODEM) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_LITE) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_GT) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_EX) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_MODEM) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GTM380_MODEM) },
{ USB_DEVICE(QUANTA_VENDOR_ID, QUANTA_PRODUCT_Q101) },
{ USB_DEVICE(QUANTA_VENDOR_ID, QUANTA_PRODUCT_Q111) },
{ USB_DEVICE(QUANTA_VENDOR_ID, QUANTA_PRODUCT_GLX) },
{ USB_DEVICE(QUANTA_VENDOR_ID, QUANTA_PRODUCT_GKE) },
{ USB_DEVICE(QUANTA_VENDOR_ID, QUANTA_PRODUCT_GLE) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220BIS, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1401, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1402, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1403, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1404, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1405, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1406, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1407, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1408, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1409, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140A, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140B, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140C, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140D, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140E, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140F, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1410, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1411, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1412, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1413, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1414, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1415, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1416, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1417, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1418, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1419, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141A, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141B, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141C, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141D, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141E, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141F, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1420, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1421, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1422, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1423, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1424, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1425, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1426, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1427, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1428, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1429, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142A, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142B, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142C, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142D, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142E, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142F, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1430, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1431, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1432, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1433, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1434, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1435, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1436, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1437, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1438, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1439, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143A, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143B, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143C, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143D, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143E, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143F, 0xff, 0xff, 0xff) },
{ USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E14AC) },
{ USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_9508) },
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, /* Novatel Merlin V640/XV620 */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, /* Novatel Merlin V620/S620 */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) }, /* Novatel Merlin EX720/V740/X720 */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V720) }, /* Novatel Merlin V720/S720/PC720 */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U730) }, /* Novatel U730/U740 (VF version) */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U740) }, /* Novatel U740 */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U870) }, /* Novatel U870 */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_XU870) }, /* Novatel Merlin XU870 HSDPA/3G */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_X950D) }, /* Novatel X950D */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EV620) }, /* Novatel EV620/ES620 CDMA/EV-DO */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES720) }, /* Novatel ES620/ES720/U720/USB720 */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_E725) }, /* Novatel E725/E726 */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_ES620) }, /* Novatel Merlin ES620 SM Bus */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU730) }, /* Novatel EU730 and Vodafone EU740 */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU740) }, /* Novatel non-Vodafone EU740 */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU870D) }, /* Novatel EU850D/EU860D/EU870D */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC950D) }, /* Novatel MC930D/MC950D */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727) }, /* Novatel MC727/U727/USB727 */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727_NEW) }, /* Novatel MC727/U727/USB727 refresh */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U727) }, /* Novatel MC727/U727/USB727 */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC760) }, /* Novatel MC760/U760/USB760 */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_OVMC760) }, /* Novatel Ovation MC760 */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_FULLSPEED) }, /* Novatel HSPA product */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_EMBEDDED_FULLSPEED) }, /* Novatel EVDO Embedded product */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_EMBEDDED_FULLSPEED) }, /* Novatel HSPA Embedded product */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_HIGHSPEED) }, /* Novatel EVDO product */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED) }, /* Novatel HSPA product */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_EMBEDDED_HIGHSPEED) }, /* Novatel EVDO Embedded product */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_EMBEDDED_HIGHSPEED) }, /* Novatel HSPA Embedded product */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL) }, /* Novatel Global product */
{ USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01) },
{ USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01A) },
{ USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H02) },
{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5700_MINICARD) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite EV620 CDMA/EV-DO */
{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5500_MINICARD) }, /* Dell Wireless 5500 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5505_MINICARD) }, /* Dell Wireless 5505 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5700_EXPRESSCARD) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO ExpressCard == Novatel Merlin XV620 CDMA/EV-DO */
{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5510_EXPRESSCARD) }, /* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard == Novatel Merlin XU870 HSDPA/3G */
{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5700_MINICARD_SPRINT) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite E720 CDMA/EV-DO */
{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5700_MINICARD_TELUS) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite ET620 CDMA/EV-DO */
{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5720_MINICARD_VZW) }, /* Dell Wireless 5720 == Novatel EV620 CDMA/EV-DO */
{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5720_MINICARD_SPRINT) }, /* Dell Wireless 5720 == Novatel EV620 CDMA/EV-DO */
{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5720_MINICARD_TELUS) }, /* Dell Wireless 5720 == Novatel EV620 CDMA/EV-DO */
{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5520_MINICARD_CINGULAR) }, /* Dell Wireless HSDPA 5520 == Novatel Expedite EU860D */
{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5520_MINICARD_GENERIC_L) }, /* Dell Wireless HSDPA 5520 */
{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5520_MINICARD_GENERIC_I) }, /* Dell Wireless 5520 Voda I Mobile Broadband (3G HSDPA) Minicard */
{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5730_MINICARD_SPRINT) }, /* Dell Wireless 5730 Mobile Broadband EVDO/HSPA Mini-Card */
{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5730_MINICARD_TELUS) }, /* Dell Wireless 5730 Mobile Broadband EVDO/HSPA Mini-Card */
{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5730_MINICARD_VZW) }, /* Dell Wireless 5730 Mobile Broadband EVDO/HSPA Mini-Card */
{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) }, /* ADU-E100, ADU-310 */
{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) },
{ USB_DEVICE(AXESSTEL_VENDOR_ID, AXESSTEL_PRODUCT_MV110H) },
{ USB_DEVICE(YISO_VENDOR_ID, YISO_PRODUCT_U893) },
{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1004) },
{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1005) },
{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1006) },
{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1007) },
{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1008) },
{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1009) },
{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100A) },
{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100B) },
{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100C) },
{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100D) },
{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100E) },
{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_100F) },
{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1010) },
{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1011) },
{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1012) },
{ USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC650) },
{ USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6000)}, /* ZTE AC8700 */
{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
{ USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UC864E) },
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UC864G) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MF622, 0xff, 0xff, 0xff) }, /* ZTE WCDMA products */
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0002, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0003, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0004, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0005, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0006, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0007, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0008, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0009, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x000a, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x000b, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x000c, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x000d, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x000e, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x000f, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0010, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0011, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0012, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0013, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MF628, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0016, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0017, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0018, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0019, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0020, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0021, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0022, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0023, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0024, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0025, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0026, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0028, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0029, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0030, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MF626, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0032, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0033, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0037, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0039, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0042, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0043, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0048, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0049, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0051, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0052, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0054, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0055, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0057, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0058, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0061, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0062, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0063, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0064, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0066, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0069, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0076, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0078, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0082, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0086, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x2002, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x2003, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0014, 0xff, 0xff, 0xff) }, /* ZTE CDMA products */
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0027, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0059, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0060, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0070, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0073, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_AC8710, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_AC2726, 0xff, 0xff, 0xff) },
{ USB_DEVICE(BENQ_VENDOR_ID, BENQ_PRODUCT_H10) },
{ USB_DEVICE(DLINK_VENDOR_ID, DLINK_PRODUCT_DWM_652) },
{ USB_DEVICE(ALINK_VENDOR_ID, DLINK_PRODUCT_DWM_652_U5) }, /* Yes, ALINK_VENDOR_ID */
{ USB_DEVICE(QISDA_VENDOR_ID, QISDA_PRODUCT_H21_4512) },
{ USB_DEVICE(QISDA_VENDOR_ID, QISDA_PRODUCT_H21_4523) },
{ USB_DEVICE(QISDA_VENDOR_ID, QISDA_PRODUCT_H20_4515) },
{ USB_DEVICE(QISDA_VENDOR_ID, QISDA_PRODUCT_H20_4519) },
{ USB_DEVICE(TOSHIBA_VENDOR_ID, TOSHIBA_PRODUCT_G450) },
{ USB_DEVICE(TOSHIBA_VENDOR_ID, TOSHIBA_PRODUCT_HSDPA_MINICARD ) }, /* Toshiba 3G HSDPA == Novatel Expedite EU870D MiniCard */
{ USB_DEVICE(ALINK_VENDOR_ID, 0x9000) },
{ USB_DEVICE_AND_INTERFACE_INFO(ALINK_VENDOR_ID, ALINK_PRODUCT_3GU, 0xff, 0xff, 0xff) },
{ USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X060S) },
{ USB_DEVICE(AIRPLUS_VENDOR_ID, AIRPLUS_PRODUCT_MCD650) },
{ USB_DEVICE(TLAYTECH_VENDOR_ID, TLAYTECH_PRODUCT_TEU800) },
{ USB_DEVICE(FOUR_G_SYSTEMS_VENDOR_ID, FOUR_G_SYSTEMS_PRODUCT_W14) },
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, option_ids);
static struct usb_driver option_driver = {
.name = "option",
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
#ifdef CONFIG_PM
.suspend = usb_serial_suspend,
.resume = usb_serial_resume,
.supports_autosuspend = 1,
#endif
.id_table = option_ids,
.no_dynamic_id = 1,
};
/* The card has three separate interfaces, which the serial driver
* recognizes separately, thus num_port=1.
*/
static struct usb_serial_driver option_1port_device = {
.driver = {
.owner = THIS_MODULE,
.name = "option1",
},
.description = "GSM modem (1-port)",
.usb_driver = &option_driver,
.id_table = option_ids,
.num_ports = 1,
.probe = option_probe,
.open = option_open,
.close = option_close,
.dtr_rts = option_dtr_rts,
.write = option_write,
.write_room = option_write_room,
.chars_in_buffer = option_chars_in_buffer,
.set_termios = option_set_termios,
.tiocmget = option_tiocmget,
.tiocmset = option_tiocmset,
.attach = option_startup,
.disconnect = option_disconnect,
.release = option_release,
.read_int_callback = option_instat_callback,
#ifdef CONFIG_PM
.suspend = option_suspend,
.resume = option_resume,
#endif
};
static int debug;
/* per port private data */
#define N_IN_URB 4
#define N_OUT_URB 4
#define IN_BUFLEN 4096
#define OUT_BUFLEN 4096
struct option_intf_private {
spinlock_t susp_lock;
unsigned int suspended:1;
int in_flight;
};
struct option_port_private {
/* Input endpoints and buffer for this port */
struct urb *in_urbs[N_IN_URB];
u8 *in_buffer[N_IN_URB];
/* Output endpoints and buffer for this port */
struct urb *out_urbs[N_OUT_URB];
u8 *out_buffer[N_OUT_URB];
unsigned long out_busy; /* Bit vector of URBs in use */
int opened;
struct usb_anchor delayed;
/* Settings for the port */
int rts_state; /* Handshaking pins (outputs) */
int dtr_state;
int cts_state; /* Handshaking pins (inputs) */
int dsr_state;
int dcd_state;
int ri_state;
unsigned long tx_start_time[N_OUT_URB];
};
/* Functions used by new usb-serial code. */
static int __init option_init(void)
{
int retval;
retval = usb_serial_register(&option_1port_device);
if (retval)
goto failed_1port_device_register;
retval = usb_register(&option_driver);
if (retval)
goto failed_driver_register;
printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
DRIVER_DESC "\n");
return 0;
failed_driver_register:
usb_serial_deregister(&option_1port_device);
failed_1port_device_register:
return retval;
}
static void __exit option_exit(void)
{
usb_deregister(&option_driver);
usb_serial_deregister(&option_1port_device);
}
module_init(option_init);
module_exit(option_exit);
static int option_probe(struct usb_serial *serial,
const struct usb_device_id *id)
{
struct option_intf_private *data;
/* D-Link DWM 652 still exposes CD-Rom emulation interface in modem mode */
if (serial->dev->descriptor.idVendor == DLINK_VENDOR_ID &&
serial->dev->descriptor.idProduct == DLINK_PRODUCT_DWM_652 &&
serial->interface->cur_altsetting->desc.bInterfaceClass == 0x8)
return -ENODEV;
data = serial->private = kzalloc(sizeof(struct option_intf_private), GFP_KERNEL);
if (!data)
return -ENOMEM;
spin_lock_init(&data->susp_lock);
return 0;
}
static void option_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios *old_termios)
{
dbg("%s", __func__);
/* Doesn't support option setting */
tty_termios_copy_hw(tty->termios, old_termios);
option_send_setup(port);
}
static int option_tiocmget(struct tty_struct *tty, struct file *file)
{
struct usb_serial_port *port = tty->driver_data;
unsigned int value;
struct option_port_private *portdata;
portdata = usb_get_serial_port_data(port);
value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
((portdata->dtr_state) ? TIOCM_DTR : 0) |
((portdata->cts_state) ? TIOCM_CTS : 0) |
((portdata->dsr_state) ? TIOCM_DSR : 0) |
((portdata->dcd_state) ? TIOCM_CAR : 0) |
((portdata->ri_state) ? TIOCM_RNG : 0);
return value;
}
static int option_tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear)
{
struct usb_serial_port *port = tty->driver_data;
struct option_port_private *portdata;
portdata = usb_get_serial_port_data(port);
/* FIXME: what locks portdata fields ? */
if (set & TIOCM_RTS)
portdata->rts_state = 1;
if (set & TIOCM_DTR)
portdata->dtr_state = 1;
if (clear & TIOCM_RTS)
portdata->rts_state = 0;
if (clear & TIOCM_DTR)
portdata->dtr_state = 0;
return option_send_setup(port);
}
/* Write */
static int option_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf, int count)
{
struct option_port_private *portdata;
struct option_intf_private *intfdata;
int i;
int left, todo;
struct urb *this_urb = NULL; /* spurious */
int err;
unsigned long flags;
portdata = usb_get_serial_port_data(port);
intfdata = port->serial->private;
dbg("%s: write (%d chars)", __func__, count);
i = 0;
left = count;
for (i = 0; left > 0 && i < N_OUT_URB; i++) {
todo = left;
if (todo > OUT_BUFLEN)
todo = OUT_BUFLEN;
this_urb = portdata->out_urbs[i];
if (test_and_set_bit(i, &portdata->out_busy)) {
if (time_before(jiffies,
portdata->tx_start_time[i] + 10 * HZ))
continue;
usb_unlink_urb(this_urb);
continue;
}
dbg("%s: endpoint %d buf %d", __func__,
usb_pipeendpoint(this_urb->pipe), i);
err = usb_autopm_get_interface_async(port->serial->interface);
if (err < 0)
break;
/* send the data */
memcpy(this_urb->transfer_buffer, buf, todo);
this_urb->transfer_buffer_length = todo;
spin_lock_irqsave(&intfdata->susp_lock, flags);
if (intfdata->suspended) {
usb_anchor_urb(this_urb, &portdata->delayed);
spin_unlock_irqrestore(&intfdata->susp_lock, flags);
} else {
intfdata->in_flight++;
spin_unlock_irqrestore(&intfdata->susp_lock, flags);
err = usb_submit_urb(this_urb, GFP_ATOMIC);
if (err) {
dbg("usb_submit_urb %p (write bulk) failed "
"(%d)", this_urb, err);
clear_bit(i, &portdata->out_busy);
spin_lock_irqsave(&intfdata->susp_lock, flags);
intfdata->in_flight--;
spin_unlock_irqrestore(&intfdata->susp_lock, flags);
continue;
}
}
portdata->tx_start_time[i] = jiffies;
buf += todo;
left -= todo;
}
count -= left;
dbg("%s: wrote (did %d)", __func__, count);
return count;
}
static void option_indat_callback(struct urb *urb)
{
int err;
int endpoint;
struct usb_serial_port *port;
struct tty_struct *tty;
unsigned char *data = urb->transfer_buffer;
int status = urb->status;
dbg("%s: %p", __func__, urb);
endpoint = usb_pipeendpoint(urb->pipe);
port = urb->context;
if (status) {
dbg("%s: nonzero status: %d on endpoint %02x.",
__func__, status, endpoint);
} else {
tty = tty_port_tty_get(&port->port);
if (urb->actual_length) {
tty_buffer_request_room(tty, urb->actual_length);
tty_insert_flip_string(tty, data, urb->actual_length);
tty_flip_buffer_push(tty);
} else
dbg("%s: empty read urb received", __func__);
tty_kref_put(tty);
/* Resubmit urb so we continue receiving */
if (port->port.count && status != -ESHUTDOWN) {
err = usb_submit_urb(urb, GFP_ATOMIC);
if (err)
printk(KERN_ERR "%s: resubmit read urb failed. "
"(%d)", __func__, err);
else
usb_mark_last_busy(port->serial->dev);
}
}
return;
}
static void option_outdat_callback(struct urb *urb)
{
struct usb_serial_port *port;
struct option_port_private *portdata;
struct option_intf_private *intfdata;
int i;
dbg("%s", __func__);
port = urb->context;
intfdata = port->serial->private;
usb_serial_port_softint(port);
usb_autopm_put_interface_async(port->serial->interface);
portdata = usb_get_serial_port_data(port);
spin_lock(&intfdata->susp_lock);
intfdata->in_flight--;
spin_unlock(&intfdata->susp_lock);
for (i = 0; i < N_OUT_URB; ++i) {
if (portdata->out_urbs[i] == urb) {
smp_mb__before_clear_bit();
clear_bit(i, &portdata->out_busy);
break;
}
}
}
static void option_instat_callback(struct urb *urb)
{
int err;
int status = urb->status;
struct usb_serial_port *port = urb->context;
struct option_port_private *portdata = usb_get_serial_port_data(port);
dbg("%s", __func__);
dbg("%s: urb %p port %p has data %p", __func__, urb, port, portdata);
if (status == 0) {
struct usb_ctrlrequest *req_pkt =
(struct usb_ctrlrequest *)urb->transfer_buffer;
if (!req_pkt) {
dbg("%s: NULL req_pkt\n", __func__);
return;
}
if ((req_pkt->bRequestType == 0xA1) &&
(req_pkt->bRequest == 0x20)) {
int old_dcd_state;
unsigned char signals = *((unsigned char *)
urb->transfer_buffer +
sizeof(struct usb_ctrlrequest));
dbg("%s: signal x%x", __func__, signals);
old_dcd_state = portdata->dcd_state;
portdata->cts_state = 1;
portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
portdata->ri_state = ((signals & 0x08) ? 1 : 0);
if (old_dcd_state && !portdata->dcd_state) {
struct tty_struct *tty =
tty_port_tty_get(&port->port);
if (tty && !C_CLOCAL(tty))
tty_hangup(tty);
tty_kref_put(tty);
}
} else {
dbg("%s: type %x req %x", __func__,
req_pkt->bRequestType, req_pkt->bRequest);
}
} else
err("%s: error %d", __func__, status);
/* Resubmit urb so we continue receiving IRQ data */
if (status != -ESHUTDOWN && status != -ENOENT) {
err = usb_submit_urb(urb, GFP_ATOMIC);
if (err)
dbg("%s: resubmit intr urb failed. (%d)",
__func__, err);
}
}
static int option_write_room(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct option_port_private *portdata;
int i;
int data_len = 0;
struct urb *this_urb;
portdata = usb_get_serial_port_data(port);
for (i = 0; i < N_OUT_URB; i++) {
this_urb = portdata->out_urbs[i];
if (this_urb && !test_bit(i, &portdata->out_busy))
data_len += OUT_BUFLEN;
}
dbg("%s: %d", __func__, data_len);
return data_len;
}
static int option_chars_in_buffer(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct option_port_private *portdata;
int i;
int data_len = 0;
struct urb *this_urb;
portdata = usb_get_serial_port_data(port);
for (i = 0; i < N_OUT_URB; i++) {
this_urb = portdata->out_urbs[i];
/* FIXME: This locking is insufficient as this_urb may
go unused during the test */
if (this_urb && test_bit(i, &portdata->out_busy))
data_len += this_urb->transfer_buffer_length;
}
dbg("%s: %d", __func__, data_len);
return data_len;
}
static int option_open(struct tty_struct *tty, struct usb_serial_port *port)
{
struct option_port_private *portdata;
struct option_intf_private *intfdata;
struct usb_serial *serial = port->serial;
int i, err;
struct urb *urb;
portdata = usb_get_serial_port_data(port);
intfdata = serial->private;
dbg("%s", __func__);
/* Start reading from the IN endpoint */
for (i = 0; i < N_IN_URB; i++) {
urb = portdata->in_urbs[i];
if (!urb)
continue;
err = usb_submit_urb(urb, GFP_KERNEL);
if (err) {
dbg("%s: submit urb %d failed (%d) %d",
__func__, i, err,
urb->transfer_buffer_length);
}
}
option_send_setup(port);
serial->interface->needs_remote_wakeup = 1;
spin_lock_irq(&intfdata->susp_lock);
portdata->opened = 1;
spin_unlock_irq(&intfdata->susp_lock);
usb_autopm_put_interface(serial->interface);
return 0;
}
static void option_dtr_rts(struct usb_serial_port *port, int on)
{
struct usb_serial *serial = port->serial;
struct option_port_private *portdata;
dbg("%s", __func__);
portdata = usb_get_serial_port_data(port);
mutex_lock(&serial->disc_mutex);
portdata->rts_state = on;
portdata->dtr_state = on;
if (serial->dev)
option_send_setup(port);
mutex_unlock(&serial->disc_mutex);
}
static void option_close(struct usb_serial_port *port)
{
int i;
struct usb_serial *serial = port->serial;
struct option_port_private *portdata;
struct option_intf_private *intfdata = port->serial->private;
dbg("%s", __func__);
portdata = usb_get_serial_port_data(port);
if (serial->dev) {
/* Stop reading/writing urbs */
spin_lock_irq(&intfdata->susp_lock);
portdata->opened = 0;
spin_unlock_irq(&intfdata->susp_lock);
for (i = 0; i < N_IN_URB; i++)
usb_kill_urb(portdata->in_urbs[i]);
for (i = 0; i < N_OUT_URB; i++)
usb_kill_urb(portdata->out_urbs[i]);
usb_autopm_get_interface(serial->interface);
serial->interface->needs_remote_wakeup = 0;
}
}
/* Helper functions used by option_setup_urbs */
static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
int dir, void *ctx, char *buf, int len,
void (*callback)(struct urb *))
{
struct urb *urb;
if (endpoint == -1)
return NULL; /* endpoint not needed */
urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */
if (urb == NULL) {
dbg("%s: alloc for endpoint %d failed.", __func__, 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;
}
/* Setup urbs */
static void option_setup_urbs(struct usb_serial *serial)
{
int i, j;
struct usb_serial_port *port;
struct option_port_private *portdata;
dbg("%s", __func__);
for (i = 0; i < serial->num_ports; i++) {
port = serial->port[i];
portdata = usb_get_serial_port_data(port);
/* Do indat endpoints first */
for (j = 0; j < N_IN_URB; ++j) {
portdata->in_urbs[j] = option_setup_urb(serial,
port->bulk_in_endpointAddress,
USB_DIR_IN, port,
portdata->in_buffer[j],
IN_BUFLEN, option_indat_callback);
}
/* outdat endpoints */
for (j = 0; j < N_OUT_URB; ++j) {
portdata->out_urbs[j] = option_setup_urb(serial,
port->bulk_out_endpointAddress,
USB_DIR_OUT, port,
portdata->out_buffer[j],
OUT_BUFLEN, option_outdat_callback);
}
}
}
/** send RTS/DTR state to the port.
*
* This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN
* CDC.
*/
static int option_send_setup(struct usb_serial_port *port)
{
struct usb_serial *serial = port->serial;
struct option_port_private *portdata;
int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
int val = 0;
dbg("%s", __func__);
portdata = usb_get_serial_port_data(port);
if (portdata->dtr_state)
val |= 0x01;
if (portdata->rts_state)
val |= 0x02;
return usb_control_msg(serial->dev,
usb_rcvctrlpipe(serial->dev, 0),
0x22, 0x21, val, ifNum, NULL, 0, USB_CTRL_SET_TIMEOUT);
}
static int option_startup(struct usb_serial *serial)
{
int i, j, err;
struct usb_serial_port *port;
struct option_port_private *portdata;
u8 *buffer;
dbg("%s", __func__);
/* Now setup per port private data */
for (i = 0; i < serial->num_ports; i++) {
port = serial->port[i];
portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
if (!portdata) {
dbg("%s: kmalloc for option_port_private (%d) failed!.",
__func__, i);
return 1;
}
init_usb_anchor(&portdata->delayed);
for (j = 0; j < N_IN_URB; j++) {
buffer = (u8 *)__get_free_page(GFP_KERNEL);
if (!buffer)
goto bail_out_error;
portdata->in_buffer[j] = buffer;
}
for (j = 0; j < N_OUT_URB; j++) {
buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
if (!buffer)
goto bail_out_error2;
portdata->out_buffer[j] = buffer;
}
usb_set_serial_port_data(port, portdata);
if (!port->interrupt_in_urb)
continue;
err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
if (err)
dbg("%s: submit irq_in urb failed %d",
__func__, err);
}
option_setup_urbs(serial);
return 0;
bail_out_error2:
for (j = 0; j < N_OUT_URB; j++)
kfree(portdata->out_buffer[j]);
bail_out_error:
for (j = 0; j < N_IN_URB; j++)
if (portdata->in_buffer[j])
free_page((unsigned long)portdata->in_buffer[j]);
kfree(portdata);
return 1;
}
static void stop_read_write_urbs(struct usb_serial *serial)
{
int i, j;
struct usb_serial_port *port;
struct option_port_private *portdata;
/* Stop reading/writing urbs */
for (i = 0; i < serial->num_ports; ++i) {
port = serial->port[i];
portdata = usb_get_serial_port_data(port);
for (j = 0; j < N_IN_URB; j++)
usb_kill_urb(portdata->in_urbs[j]);
for (j = 0; j < N_OUT_URB; j++)
usb_kill_urb(portdata->out_urbs[j]);
}
}
static void option_disconnect(struct usb_serial *serial)
{
dbg("%s", __func__);
stop_read_write_urbs(serial);
}
static void option_release(struct usb_serial *serial)
{
int i, j;
struct usb_serial_port *port;
struct option_port_private *portdata;
dbg("%s", __func__);
/* Now free them */
for (i = 0; i < serial->num_ports; ++i) {
port = serial->port[i];
portdata = usb_get_serial_port_data(port);
for (j = 0; j < N_IN_URB; j++) {
if (portdata->in_urbs[j]) {
usb_free_urb(portdata->in_urbs[j]);
free_page((unsigned long)
portdata->in_buffer[j]);
portdata->in_urbs[j] = NULL;
}
}
for (j = 0; j < N_OUT_URB; j++) {
if (portdata->out_urbs[j]) {
usb_free_urb(portdata->out_urbs[j]);
kfree(portdata->out_buffer[j]);
portdata->out_urbs[j] = NULL;
}
}
}
/* 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));
}
}
#ifdef CONFIG_PM
static int option_suspend(struct usb_serial *serial, pm_message_t message)
{
struct option_intf_private *intfdata = serial->private;
int b;
dbg("%s entered", __func__);
if (serial->dev->auto_pm) {
spin_lock_irq(&intfdata->susp_lock);
b = intfdata->in_flight;
spin_unlock_irq(&intfdata->susp_lock);
if (b)
return -EBUSY;
}
spin_lock_irq(&intfdata->susp_lock);
intfdata->suspended = 1;
spin_unlock_irq(&intfdata->susp_lock);
stop_read_write_urbs(serial);
return 0;
}
static void play_delayed(struct usb_serial_port *port)
{
struct option_intf_private *data;
struct option_port_private *portdata;
struct urb *urb;
int err;
portdata = usb_get_serial_port_data(port);
data = port->serial->private;
while ((urb = usb_get_from_anchor(&portdata->delayed))) {
err = usb_submit_urb(urb, GFP_ATOMIC);
if (!err)
data->in_flight++;
}
}
static int option_resume(struct usb_serial *serial)
{
int i, j;
struct usb_serial_port *port;
struct option_intf_private *intfdata = serial->private;
struct option_port_private *portdata;
struct urb *urb;
int err = 0;
dbg("%s entered", __func__);
/* get the interrupt URBs resubmitted unconditionally */
for (i = 0; i < serial->num_ports; i++) {
port = serial->port[i];
if (!port->interrupt_in_urb) {
dbg("%s: No interrupt URB for port %d\n", __func__, i);
continue;
}
err = usb_submit_urb(port->interrupt_in_urb, GFP_NOIO);
dbg("Submitted interrupt URB for port %d (result %d)", i, err);
if (err < 0) {
err("%s: Error %d for interrupt URB of port%d",
__func__, err, i);
goto err_out;
}
}
for (i = 0; i < serial->num_ports; i++) {
/* walk all ports */
port = serial->port[i];
portdata = usb_get_serial_port_data(port);
/* skip closed ports */
spin_lock_irq(&intfdata->susp_lock);
if (!portdata->opened) {
spin_unlock_irq(&intfdata->susp_lock);
continue;
}
for (j = 0; j < N_IN_URB; j++) {
urb = portdata->in_urbs[j];
err = usb_submit_urb(urb, GFP_ATOMIC);
if (err < 0) {
err("%s: Error %d for bulk URB %d",
__func__, err, i);
spin_unlock_irq(&intfdata->susp_lock);
goto err_out;
}
}
play_delayed(port);
spin_unlock_irq(&intfdata->susp_lock);
}
spin_lock_irq(&intfdata->susp_lock);
intfdata->suspended = 0;
spin_unlock_irq(&intfdata->susp_lock);
err_out:
return err;
}
#endif
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_VERSION(DRIVER_VERSION);
MODULE_LICENSE("GPL");
module_param(debug, bool, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug, "Debug messages");
文件四：
pl2303.c
/*
* Prolific PL2303 USB to serial adaptor driver
*
* Copyright (C) 2001-2007 Greg Kroah-Hartman (greg@kroah.com)
* Copyright (C) 2003 IBM Corp.
*
* Original driver for 2.2.x by anonymous
*
* 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.
*
* See Documentation/usb/usb-serial.txt for more information on using this
* driver
*
*/
#include <linux/kernel.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/serial.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/spinlock.h>
#include <linux/uaccess.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
#include "pl2303.h"
/*
* Version Information
*/
#define DRIVER_DESC "Prolific PL2303 USB to serial adaptor driver"
static int debug;
#define PL2303_CLOSING_WAIT (30*HZ)
#define PL2303_BUF_SIZE 1024
#define PL2303_TMP_BUF_SIZE 1024
struct pl2303_buf {
unsigned int buf_size;
char *buf_buf;
char *buf_get;
char *buf_put;
};
static struct usb_device_id id_table [] = {
{ USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID) },
{ USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_RSAQ2) },
{ USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_DCU11) },
{ USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_RSAQ3) },
{ USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_PHAROS) },
{ USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_ALDIGA) },
{ USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_MMX) },
{ USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_GPRS) },
{ USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID) },
{ USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID_RSAQ5) },
{ USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_ID) },
{ USB_DEVICE(ATEN_VENDOR_ID2, ATEN_PRODUCT_ID) },
{ USB_DEVICE(ELCOM_VENDOR_ID, ELCOM_PRODUCT_ID) },
{ USB_DEVICE(ELCOM_VENDOR_ID, ELCOM_PRODUCT_ID_UCSGT) },
{ USB_DEVICE(ITEGNO_VENDOR_ID, ITEGNO_PRODUCT_ID) },
{ USB_DEVICE(ITEGNO_VENDOR_ID, ITEGNO_PRODUCT_ID_2080) },
{ USB_DEVICE(MA620_VENDOR_ID, MA620_PRODUCT_ID) },
{ USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID) },
{ USB_DEVICE(TRIPP_VENDOR_ID, TRIPP_PRODUCT_ID) },
{ USB_DEVICE(RADIOSHACK_VENDOR_ID, RADIOSHACK_PRODUCT_ID) },
{ USB_DEVICE(DCU10_VENDOR_ID, DCU10_PRODUCT_ID) },
{ USB_DEVICE(SITECOM_VENDOR_ID, SITECOM_PRODUCT_ID) },
{ USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_ID) },
{ USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_PRODUCT_ID) },
{ USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_SX1) },
{ USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_X65) },
{ USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_X75) },
{ USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_EF81) },
{ USB_DEVICE(BENQ_VENDOR_ID, BENQ_PRODUCT_ID_S81) }, /* Benq/Siemens S81 */
{ USB_DEVICE(SYNTECH_VENDOR_ID, SYNTECH_PRODUCT_ID) },
{ USB_DEVICE(NOKIA_CA42_VENDOR_ID, NOKIA_CA42_PRODUCT_ID) },
{ USB_DEVICE(CA_42_CA42_VENDOR_ID, CA_42_CA42_PRODUCT_ID) },
{ USB_DEVICE(SAGEM_VENDOR_ID, SAGEM_PRODUCT_ID) },
{ USB_DEVICE(LEADTEK_VENDOR_ID, LEADTEK_9531_PRODUCT_ID) },
{ USB_DEVICE(SPEEDDRAGON_VENDOR_ID, SPEEDDRAGON_PRODUCT_ID) },
{ USB_DEVICE(DATAPILOT_U2_VENDOR_ID, DATAPILOT_U2_PRODUCT_ID) },
{ USB_DEVICE(BELKIN_VENDOR_ID, BELKIN_PRODUCT_ID) },
{ USB_DEVICE(ALCOR_VENDOR_ID, ALCOR_PRODUCT_ID) },
{ USB_DEVICE(WS002IN_VENDOR_ID, WS002IN_PRODUCT_ID) },
{ USB_DEVICE(COREGA_VENDOR_ID, COREGA_PRODUCT_ID) },
{ USB_DEVICE(YCCABLE_VENDOR_ID, YCCABLE_PRODUCT_ID) },
{ USB_DEVICE(SUPERIAL_VENDOR_ID, SUPERIAL_PRODUCT_ID) },
{ USB_DEVICE(HP_VENDOR_ID, HP_LD220_PRODUCT_ID) },
{ USB_DEVICE(CRESSI_VENDOR_ID, CRESSI_EDY_PRODUCT_ID) },
{ USB_DEVICE(SONY_VENDOR_ID, SONY_QN3USB_PRODUCT_ID) },
{ USB_DEVICE(SANWA_VENDOR_ID, SANWA_PRODUCT_ID) },
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, id_table);
static struct usb_driver pl2303_driver = {
.name = "pl2303",
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table,
.suspend = usb_serial_suspend,
.resume = usb_serial_resume,
.no_dynamic_id = 1,
.supports_autosuspend = 1,
};
#define SET_LINE_REQUEST_TYPE 0x21
#define SET_LINE_REQUEST 0x20
#define SET_CONTROL_REQUEST_TYPE 0x21
#define SET_CONTROL_REQUEST 0x22
#define CONTROL_DTR 0x01
#define CONTROL_RTS 0x02
#define BREAK_REQUEST_TYPE 0x21
#define BREAK_REQUEST 0x23
#define BREAK_ON 0xffff
#define BREAK_OFF 0x0000
#define GET_LINE_REQUEST_TYPE 0xa1
#define GET_LINE_REQUEST 0x21
#define VENDOR_WRITE_REQUEST_TYPE 0x40
#define VENDOR_WRITE_REQUEST 0x01
#define VENDOR_READ_REQUEST_TYPE 0xc0
#define VENDOR_READ_REQUEST 0x01
#define UART_STATE 0x08
#define UART_STATE_TRANSIENT_MASK 0x74
#define UART_DCD 0x01
#define UART_DSR 0x02
#define UART_BREAK_ERROR 0x04
#define UART_RING 0x08
#define UART_FRAME_ERROR 0x10
#define UART_PARITY_ERROR 0x20
#define UART_OVERRUN_ERROR 0x40
#define UART_CTS 0x80
enum pl2303_type {
type_0, /* don't know the difference between type 0 and */
type_1, /* type 1, until someone from prolific tells us... */
HX, /* HX version of the pl2303 chip */
};
struct pl2303_private {
spinlock_t lock;
struct pl2303_buf *buf;
int write_urb_in_use;
wait_queue_head_t delta_msr_wait;
u8 line_control;
u8 line_status;
enum pl2303_type type;
};
/*
* pl2303_buf_alloc
*
* Allocate a circular buffer and all associated memory.
*/
static struct pl2303_buf *pl2303_buf_alloc(unsigned int size)
{
struct pl2303_buf *pb;
if (size == 0)
return NULL;
pb = kmalloc(sizeof(struct pl2303_buf), GFP_KERNEL);
if (pb == NULL)
return NULL;
pb->buf_buf = kmalloc(size, GFP_KERNEL);
if (pb->buf_buf == NULL) {
kfree(pb);
return NULL;
}
pb->buf_size = size;
pb->buf_get = pb->buf_put = pb->buf_buf;
return pb;
}
/*
* pl2303_buf_free
*
* Free the buffer and all associated memory.
*/
static void pl2303_buf_free(struct pl2303_buf *pb)
{
if (pb) {
kfree(pb->buf_buf);
kfree(pb);
}
}
/*
* pl2303_buf_clear
*
* Clear out all data in the circular buffer.
*/
static void pl2303_buf_clear(struct pl2303_buf *pb)
{
if (pb != NULL)
pb->buf_get = pb->buf_put;
/* equivalent to a get of all data available */
}
/*
* pl2303_buf_data_avail
*
* Return the number of bytes of data available in the circular
* buffer.
*/
static unsigned int pl2303_buf_data_avail(struct pl2303_buf *pb)
{
if (pb == NULL)
return 0;
return (pb->buf_size + pb->buf_put - pb->buf_get) % pb->buf_size;
}
/*
* pl2303_buf_space_avail
*
* Return the number of bytes of space available in the circular
* buffer.
*/
static unsigned int pl2303_buf_space_avail(struct pl2303_buf *pb)
{
if (pb == NULL)
return 0;
return (pb->buf_size + pb->buf_get - pb->buf_put - 1) % pb->buf_size;
}
/*
* pl2303_buf_put
*
* Copy data data from a user buffer and put it into the circular buffer.
* Restrict to the amount of space available.
*
* Return the number of bytes copied.
*/
static unsigned int pl2303_buf_put(struct pl2303_buf *pb, const char *buf,
unsigned int count)
{
unsigned int len;
if (pb == NULL)
return 0;
len = pl2303_buf_space_avail(pb);
if (count > len)
count = len;
if (count == 0)
return 0;
len = pb->buf_buf + pb->buf_size - pb->buf_put;
if (count > len) {
memcpy(pb->buf_put, buf, len);
memcpy(pb->buf_buf, buf+len, count - len);
pb->buf_put = pb->buf_buf + count - len;
} else {
memcpy(pb->buf_put, buf, count);
if (count < len)
pb->buf_put += count;
else /* count == len */
pb->buf_put = pb->buf_buf;
}
return count;
}
/*
* pl2303_buf_get
*
* Get data from the circular buffer and copy to the given buffer.
* Restrict to the amount of data available.
*
* Return the number of bytes copied.
*/
static unsigned int pl2303_buf_get(struct pl2303_buf *pb, char *buf,
unsigned int count)
{
unsigned int len;
if (pb == NULL)
return 0;
len = pl2303_buf_data_avail(pb);
if (count > len)
count = len;
if (count == 0)
return 0;
len = pb->buf_buf + pb->buf_size - pb->buf_get;
if (count > len) {
memcpy(buf, pb->buf_get, len);
memcpy(buf+len, pb->buf_buf, count - len);
pb->buf_get = pb->buf_buf + count - len;
} else {
memcpy(buf, pb->buf_get, count);
if (count < len)
pb->buf_get += count;
else /* count == len */
pb->buf_get = pb->buf_buf;
}
return count;
}
static int pl2303_vendor_read(__u16 value, __u16 index,
struct usb_serial *serial, unsigned char *buf)
{
int res = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
VENDOR_READ_REQUEST, VENDOR_READ_REQUEST_TYPE,
value, index, buf, 1, 100);
dbg("0x%x:0x%x:0x%x:0x%x %d - %x", VENDOR_READ_REQUEST_TYPE,
VENDOR_READ_REQUEST, value, index, res, buf[0]);
return res;
}
static int pl2303_vendor_write(__u16 value, __u16 index,
struct usb_serial *serial)
{
int res = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
VENDOR_WRITE_REQUEST, VENDOR_WRITE_REQUEST_TYPE,
value, index, NULL, 0, 100);
dbg("0x%x:0x%x:0x%x:0x%x %d", VENDOR_WRITE_REQUEST_TYPE,
VENDOR_WRITE_REQUEST, value, index, res);
return res;
}
static int pl2303_startup(struct usb_serial *serial)
{
struct pl2303_private *priv;
enum pl2303_type type = type_0;
unsigned char *buf;
int i;
buf = kmalloc(10, GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
if (serial->dev->descriptor.bDeviceClass == 0x02)
type = type_0;
else if (serial->dev->descriptor.bMaxPacketSize0 == 0x40)
type = HX;
else if (serial->dev->descriptor.bDeviceClass == 0x00)
type = type_1;
else if (serial->dev->descriptor.bDeviceClass == 0xFF)
type = type_1;
dbg("device type: %d", type);
for (i = 0; i < serial->num_ports; ++i) {
priv = kzalloc(sizeof(struct pl2303_private), GFP_KERNEL);
if (!priv)
goto cleanup;
spin_lock_init(&priv->lock);
priv->buf = pl2303_buf_alloc(PL2303_BUF_SIZE);
if (priv->buf == NULL) {
kfree(priv);
goto cleanup;
}
init_waitqueue_head(&priv->delta_msr_wait);
priv->type = type;
usb_set_serial_port_data(serial->port[i], priv);
}
pl2303_vendor_read(0x8484, 0, serial, buf);
pl2303_vendor_write(0x0404, 0, serial);
pl2303_vendor_read(0x8484, 0, serial, buf);
pl2303_vendor_read(0x8383, 0, serial, buf);
pl2303_vendor_read(0x8484, 0, serial, buf);
pl2303_vendor_write(0x0404, 1, serial);
pl2303_vendor_read(0x8484, 0, serial, buf);
pl2303_vendor_read(0x8383, 0, serial, buf);
pl2303_vendor_write(0, 1, serial);
pl2303_vendor_write(1, 0, serial);
if (type == HX)
pl2303_vendor_write(2, 0x44, serial);
else
pl2303_vendor_write(2, 0x24, serial);
kfree(buf);
return 0;
cleanup:
kfree(buf);
for (--i; i >= 0; --i) {
priv = usb_get_serial_port_data(serial->port[i]);
pl2303_buf_free(priv->buf);
kfree(priv);
usb_set_serial_port_data(serial->port[i], NULL);
}
return -ENOMEM;
}
static int set_control_lines(struct usb_device *dev, u8 value)
{
int retval;
retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
SET_CONTROL_REQUEST, SET_CONTROL_REQUEST_TYPE,
value, 0, NULL, 0, 100);
dbg("%s - value = %d, retval = %d", __func__, value, retval);
return retval;
}
static void pl2303_send(struct usb_serial_port *port)
{
int count, result;
struct pl2303_private *priv = usb_get_serial_port_data(port);
unsigned long flags;
dbg("%s - port %d", __func__, port->number);
spin_lock_irqsave(&priv->lock, flags);
if (priv->write_urb_in_use) {
spin_unlock_irqrestore(&priv->lock, flags);
return;
}
count = pl2303_buf_get(priv->buf, port->write_urb->transfer_buffer,
port->bulk_out_size);
if (count == 0) {
spin_unlock_irqrestore(&priv->lock, flags);
return;
}
priv->write_urb_in_use = 1;
spin_unlock_irqrestore(&priv->lock, flags);
usb_serial_debug_data(debug, &port->dev, __func__, count,
port->write_urb->transfer_buffer);
port->write_urb->transfer_buffer_length = count;
port->write_urb->dev = port->serial->dev;
result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
if (result) {
dev_err(&port->dev, "%s - failed submitting write urb,"
" error %d\n", __func__, result);
priv->write_urb_in_use = 0;
/* TODO: reschedule pl2303_send */
}
usb_serial_port_softint(port);
}
static int pl2303_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf, int count)
{
struct pl2303_private *priv = usb_get_serial_port_data(port);
unsigned long flags;
dbg("%s - port %d, %d bytes", __func__, port->number, count);
if (!count)
return count;
spin_lock_irqsave(&priv->lock, flags);
count = pl2303_buf_put(priv->buf, buf, count);
spin_unlock_irqrestore(&priv->lock, flags);
pl2303_send(port);
return count;
}
static int pl2303_write_room(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct pl2303_private *priv = usb_get_serial_port_data(port);
int room = 0;
unsigned long flags;
dbg("%s - port %d", __func__, port->number);
spin_lock_irqsave(&priv->lock, flags);
room = pl2303_buf_space_avail(priv->buf);
spin_unlock_irqrestore(&priv->lock, flags);
dbg("%s - returns %d", __func__, room);
return room;
}
static int pl2303_chars_in_buffer(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct pl2303_private *priv = usb_get_serial_port_data(port);
int chars = 0;
unsigned long flags;
dbg("%s - port %d", __func__, port->number);
spin_lock_irqsave(&priv->lock, flags);
chars = pl2303_buf_data_avail(priv->buf);
spin_unlock_irqrestore(&priv->lock, flags);
dbg("%s - returns %d", __func__, chars);
return chars;
}
static void pl2303_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios *old_termios)
{
struct usb_serial *serial = port->serial;
struct pl2303_private *priv = usb_get_serial_port_data(port);
unsigned long flags;
unsigned int cflag;
unsigned char *buf;
int baud;
int i;
u8 control;
const int baud_sup[] = { 75, 150, 300, 600, 1200, 1800, 2400, 3600,
4800, 7200, 9600, 14400, 19200, 28800, 38400,
57600, 115200, 230400, 460800, 614400,
921600, 1228800, 2457600, 3000000, 6000000 };
int baud_floor, baud_ceil;
int k;
dbg("%s - port %d", __func__, port->number);
/* The PL2303 is reported to lose bytes if you change
serial settings even to the same values as before. Thus
we actually need to filter in this specific case */
if (!tty_termios_hw_change(tty->termios, old_termios))
return;
cflag = tty->termios->c_cflag;
buf = kzalloc(7, GFP_KERNEL);
if (!buf) {
dev_err(&port->dev, "%s - out of memory.\n", __func__);
/* Report back no change occurred */
*tty->termios = *old_termios;
return;
}
i = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
GET_LINE_REQUEST, GET_LINE_REQUEST_TYPE,
0, 0, buf, 7, 100);
dbg("0xa1:0x21:0:0 %d - %x %x %x %x %x %x %x", i,
buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6]);
if (cflag & CSIZE) {
switch (cflag & CSIZE) {
case CS5:
buf[6] = 5;
break;
case CS6:
buf[6] = 6;
break;
case CS7:
buf[6] = 7;
break;
default:
case CS8:
buf[6] = 8;
break;
}
dbg("%s - data bits = %d", __func__, buf[6]);
}
/* For reference buf[0]:buf[3] baud rate value */
/* NOTE: Only the values defined in baud_sup are supported !
* => if unsupported values are set, the PL2303 seems to use
* 9600 baud (at least my PL2303X always does)
*/
baud = tty_get_baud_rate(tty);
dbg("%s - baud requested = %d", __func__, baud);
if (baud) {
/* Set baudrate to nearest supported value */
for (k=0; k<ARRAY_SIZE(baud_sup); k++) {
if (baud_sup[k] / baud) {
baud_ceil = baud_sup[k];
if (k==0) {
baud = baud_ceil;
} else {
baud_floor = baud_sup[k-1];
if ((baud_ceil % baud)
> (baud % baud_floor))
baud = baud_floor;
else
baud = baud_ceil;
}
break;
}
}
if (baud > 1228800) {
/* type_0, type_1 only support up to 1228800 baud */
if (priv->type != HX)
baud = 1228800;
else if (baud > 6000000)
baud = 6000000;
}
dbg("%s - baud set = %d", __func__, baud);
buf[0] = baud & 0xff;
buf[1] = (baud >> 8) & 0xff;
buf[2] = (baud >> 16) & 0xff;
buf[3] = (baud >> 24) & 0xff;
}
/* For reference buf[4]=0 is 1 stop bits */
/* For reference buf[4]=1 is 1.5 stop bits */
/* For reference buf[4]=2 is 2 stop bits */
if (cflag & CSTOPB) {
/* NOTE: Comply with "real" UARTs / RS232:
* use 1.5 instead of 2 stop bits with 5 data bits
*/
if ((cflag & CSIZE) == CS5) {
buf[4] = 1;
dbg("%s - stop bits = 1.5", __func__);
} else {
buf[4] = 2;
dbg("%s - stop bits = 2", __func__);
}
} else {
buf[4] = 0;
dbg("%s - stop bits = 1", __func__);
}
if (cflag & PARENB) {
/* For reference buf[5]=0 is none parity */
/* For reference buf[5]=1 is odd parity */
/* For reference buf[5]=2 is even parity */
/* For reference buf[5]=3 is mark parity */
/* For reference buf[5]=4 is space parity */
if (cflag & PARODD) {
if (cflag & CMSPAR) {
buf[5] = 3;
dbg("%s - parity = mark", __func__);
} else {
buf[5] = 1;
dbg("%s - parity = odd", __func__);
}
} else {
if (cflag & CMSPAR) {
buf[5] = 4;
dbg("%s - parity = space", __func__);
} else {
buf[5] = 2;
dbg("%s - parity = even", __func__);
}
}
} else {
buf[5] = 0;
dbg("%s - parity = none", __func__);
}
i = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
SET_LINE_REQUEST, SET_LINE_REQUEST_TYPE,
0, 0, buf, 7, 100);
dbg("0x21:0x20:0:0 %d", i);
/* change control lines if we are switching to or from B0 */
spin_lock_irqsave(&priv->lock, flags);
control = priv->line_control;
if ((cflag & CBAUD) == B0)
priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS);
else
priv->line_control |= (CONTROL_DTR | CONTROL_RTS);
if (control != priv->line_control) {
control = priv->line_control;
spin_unlock_irqrestore(&priv->lock, flags);
set_control_lines(serial->dev, control);
} else {
spin_unlock_irqrestore(&priv->lock, flags);
}
buf[0] = buf[1] = buf[2] = buf[3] = buf[4] = buf[5] = buf[6] = 0;
i = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
GET_LINE_REQUEST, GET_LINE_REQUEST_TYPE,
0, 0, buf, 7, 100);
dbg("0xa1:0x21:0:0 %d - %x %x %x %x %x %x %x", i,
buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6]);
if (cflag & CRTSCTS) {
if (priv->type == HX)
pl2303_vendor_write(0x0, 0x61, serial);
else
pl2303_vendor_write(0x0, 0x41, serial);
} else {
pl2303_vendor_write(0x0, 0x0, serial);
}
/* Save resulting baud rate */
if (baud)
tty_encode_baud_rate(tty, baud, baud);
kfree(buf);
}
static void pl2303_dtr_rts(struct usb_serial_port *port, int on)
{
struct pl2303_private *priv = usb_get_serial_port_data(port);
unsigned long flags;
u8 control;
spin_lock_irqsave(&priv->lock, flags);
/* Change DTR and RTS */
if (on)
priv->line_control |= (CONTROL_DTR | CONTROL_RTS);
else
priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS);
control = priv->line_control;
spin_unlock_irqrestore(&priv->lock, flags);
set_control_lines(port->serial->dev, control);
}
static void pl2303_close(struct usb_serial_port *port)
{
struct pl2303_private *priv = usb_get_serial_port_data(port);
unsigned long flags;
dbg("%s - port %d", __func__, port->number);
spin_lock_irqsave(&priv->lock, flags);
/* clear out any remaining data in the buffer */
pl2303_buf_clear(priv->buf);
spin_unlock_irqrestore(&priv->lock, flags);
/* shutdown our urbs */
dbg("%s - shutting down urbs", __func__);
usb_kill_urb(port->write_urb);
usb_kill_urb(port->read_urb);
usb_kill_urb(port->interrupt_in_urb);
}
static int pl2303_open(struct tty_struct *tty, struct usb_serial_port *port)
{
struct ktermios tmp_termios;
struct usb_serial *serial = port->serial;
struct pl2303_private *priv = usb_get_serial_port_data(port);
int result;
dbg("%s - port %d", __func__, port->number);
if (priv->type != HX) {
usb_clear_halt(serial->dev, port->write_urb->pipe);
usb_clear_halt(serial->dev, port->read_urb->pipe);
} else {
/* reset upstream data pipes */
pl2303_vendor_write(8, 0, serial);
pl2303_vendor_write(9, 0, serial);
}
/* Setup termios */
if (tty)
pl2303_set_termios(tty, port, &tmp_termios);
dbg("%s - submitting read urb", __func__);
port->read_urb->dev = serial->dev;
result = usb_submit_urb(port->read_urb, GFP_KERNEL);
if (result) {
dev_err(&port->dev, "%s - failed submitting read urb,"
" error %d\n", __func__, result);
pl2303_close(port);
return -EPROTO;
}
dbg("%s - submitting interrupt urb", __func__);
port->interrupt_in_urb->dev = serial->dev;
result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
if (result) {
dev_err(&port->dev, "%s - failed submitting interrupt urb,"
" error %d\n", __func__, result);
pl2303_close(port);
return -EPROTO;
}
port->port.drain_delay = 256;
return 0;
}
static int pl2303_tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear)
{
struct usb_serial_port *port = tty->driver_data;
struct pl2303_private *priv = usb_get_serial_port_data(port);
unsigned long flags;
u8 control;
if (!usb_get_intfdata(port->serial->interface))
return -ENODEV;
spin_lock_irqsave(&priv->lock, flags);
if (set & TIOCM_RTS)
priv->line_control |= CONTROL_RTS;
if (set & TIOCM_DTR)
priv->line_control |= CONTROL_DTR;
if (clear & TIOCM_RTS)
priv->line_control &= ~CONTROL_RTS;
if (clear & TIOCM_DTR)
priv->line_control &= ~CONTROL_DTR;
control = priv->line_control;
spin_unlock_irqrestore(&priv->lock, flags);
return set_control_lines(port->serial->dev, control);
}
static int pl2303_tiocmget(struct tty_struct *tty, struct file *file)
{
struct usb_serial_port *port = tty->driver_data;
struct pl2303_private *priv = usb_get_serial_port_data(port);
unsigned long flags;
unsigned int mcr;
unsigned int status;
unsigned int result;
dbg("%s (%d)", __func__, port->number);
if (!usb_get_intfdata(port->serial->interface))
return -ENODEV;
spin_lock_irqsave(&priv->lock, flags);
mcr = priv->line_control;
status = priv->line_status;
spin_unlock_irqrestore(&priv->lock, flags);
result = ((mcr & CONTROL_DTR) ? TIOCM_DTR : 0)
| ((mcr & CONTROL_RTS) ? TIOCM_RTS : 0)
| ((status & UART_CTS) ? TIOCM_CTS : 0)
| ((status & UART_DSR) ? TIOCM_DSR : 0)
| ((status & UART_RING) ? TIOCM_RI : 0)
| ((status & UART_DCD) ? TIOCM_CD : 0);
dbg("%s - result = %x", __func__, result);
return result;
}
static int pl2303_carrier_raised(struct usb_serial_port *port)
{
struct pl2303_private *priv = usb_get_serial_port_data(port);
if (priv->line_status & UART_DCD)
return 1;
return 0;
}
static int wait_modem_info(struct usb_serial_port *port, unsigned int arg)
{
struct pl2303_private *priv = usb_get_serial_port_data(port);
unsigned long flags;
unsigned int prevstatus;
unsigned int status;
unsigned int changed;
spin_lock_irqsave(&priv->lock, flags);
prevstatus = priv->line_status;
spin_unlock_irqrestore(&priv->lock, flags);
while (1) {
interruptible_sleep_on(&priv->delta_msr_wait);
/* see if a signal did it */
if (signal_pending(current))
return -ERESTARTSYS;
spin_lock_irqsave(&priv->lock, flags);
status = priv->line_status;
spin_unlock_irqrestore(&priv->lock, flags);
changed = prevstatus ^ status;
if (((arg & TIOCM_RNG) && (changed & UART_RING)) ||
((arg & TIOCM_DSR) && (changed & UART_DSR)) ||
((arg & TIOCM_CD) && (changed & UART_DCD)) ||
((arg & TIOCM_CTS) && (changed & UART_CTS))) {
return 0;
}
prevstatus = status;
}
/* NOTREACHED */
return 0;
}
static int pl2303_ioctl(struct tty_struct *tty, struct file *file,
unsigned int cmd, unsigned long arg)
{
struct usb_serial_port *port = tty->driver_data;
dbg("%s (%d) cmd = 0x%04x", __func__, port->number, cmd);
switch (cmd) {
case TIOCMIWAIT:
dbg("%s (%d) TIOCMIWAIT", __func__, port->number);
return wait_modem_info(port, arg);
default:
dbg("%s not supported = 0x%04x", __func__, cmd);
break;
}
return -ENOIOCTLCMD;
}
static void pl2303_break_ctl(struct tty_struct *tty, int break_state)
{
struct usb_serial_port *port = tty->driver_data;
struct usb_serial *serial = port->serial;
u16 state;
int result;
dbg("%s - port %d", __func__, port->number);
if (break_state == 0)
state = BREAK_OFF;
else
state = BREAK_ON;
dbg("%s - turning break %s", __func__,
state == BREAK_OFF ? "off" : "on");
result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
BREAK_REQUEST, BREAK_REQUEST_TYPE, state,
0, NULL, 0, 100);
if (result)
dbg("%s - error sending break = %d", __func__, result);
}
static void pl2303_release(struct usb_serial *serial)
{
int i;
struct pl2303_private *priv;
dbg("%s", __func__);
for (i = 0; i < serial->num_ports; ++i) {
priv = usb_get_serial_port_data(serial->port[i]);
if (priv) {
pl2303_buf_free(priv->buf);
kfree(priv);
}
}
}
static void pl2303_update_line_status(struct usb_serial_port *port,
unsigned char *data,
unsigned int actual_length)
{
struct pl2303_private *priv = usb_get_serial_port_data(port);
unsigned long flags;
u8 status_idx = UART_STATE;
u8 length = UART_STATE + 1;
u16 idv, idp;
idv = le16_to_cpu(port->serial->dev->descriptor.idVendor);
idp = le16_to_cpu(port->serial->dev->descriptor.idProduct);
if (idv == SIEMENS_VENDOR_ID) {
if (idp == SIEMENS_PRODUCT_ID_X65 ||
idp == SIEMENS_PRODUCT_ID_SX1 ||
idp == SIEMENS_PRODUCT_ID_X75) {
length = 1;
status_idx = 0;
}
}
if (actual_length < length)
return;
/* Save off the uart status for others to look at */
spin_lock_irqsave(&priv->lock, flags);
priv->line_status = data[status_idx];
spin_unlock_irqrestore(&priv->lock, flags);
if (priv->line_status & UART_BREAK_ERROR)
usb_serial_handle_break(port);
wake_up_interruptible(&priv->delta_msr_wait);
}
static void pl2303_read_int_callback(struct urb *urb)
{
struct usb_serial_port *port = urb->context;
unsigned char *data = urb->transfer_buffer;
unsigned int actual_length = urb->actual_length;
int status = urb->status;
int retval;
dbg("%s (%d)", __func__, port->number);
switch (status) {
case 0:
/* success */
break;
case -ECONNRESET:
case -ENOENT:
case -ESHUTDOWN:
/* this urb is terminated, clean up */
dbg("%s - urb shutting down with status: %d", __func__,
status);
return;
default:
dbg("%s - nonzero urb status received: %d", __func__,
status);
goto exit;
}
usb_serial_debug_data(debug, &port->dev, __func__,
urb->actual_length, urb->transfer_buffer);
pl2303_update_line_status(port, data, actual_length);
exit:
retval = usb_submit_urb(urb, GFP_ATOMIC);
if (retval)
dev_err(&urb->dev->dev,
"%s - usb_submit_urb failed with result %d\n",
__func__, retval);
}
static void pl2303_push_data(struct tty_struct *tty,
struct usb_serial_port *port, struct urb *urb,
u8 line_status)
{
unsigned char *data = urb->transfer_buffer;
/* get tty_flag from status */
char tty_flag = TTY_NORMAL;
/* break takes precedence over parity, */
/* which takes precedence over framing errors */
if (line_status & UART_BREAK_ERROR)
tty_flag = TTY_BREAK;
else if (line_status & UART_PARITY_ERROR)
tty_flag = TTY_PARITY;
else if (line_status & UART_FRAME_ERROR)
tty_flag = TTY_FRAME;
dbg("%s - tty_flag = %d", __func__, tty_flag);
tty_buffer_request_room(tty, urb->actual_length + 1);
/* overrun is special, not associated with a char */
if (line_status & UART_OVERRUN_ERROR)
tty_insert_flip_char(tty, 0, TTY_OVERRUN);
if (tty_flag == TTY_NORMAL && !(port->console && port->sysrq))
tty_insert_flip_string(tty, data, urb->actual_length);
else {
int i;
for (i = 0; i < urb->actual_length; ++i)
if (!usb_serial_handle_sysrq_char(tty, port, data[i]))
tty_insert_flip_char(tty, data[i], tty_flag);
}
tty_flip_buffer_push(tty);
}
static void pl2303_read_bulk_callback(struct urb *urb)
{
struct usb_serial_port *port = urb->context;
struct pl2303_private *priv = usb_get_serial_port_data(port);
struct tty_struct *tty;
unsigned long flags;
int result;
int status = urb->status;
u8 line_status;
dbg("%s - port %d", __func__, port->number);
if (status) {
dbg("%s - urb status = %d", __func__, status);
if (!port->port.count) {
dbg("%s - port is closed, exiting.", __func__);
return;
}
if (status == -EPROTO) {
/* PL2303 mysteriously fails with -EPROTO reschedule
* the read */
dbg("%s - caught -EPROTO, resubmitting the urb",
__func__);
urb->dev = port->serial->dev;
result = usb_submit_urb(urb, GFP_ATOMIC);
if (result)
dev_err(&urb->dev->dev, "%s - failed"
" resubmitting read urb, error %d\n",
__func__, result);
return;
}
dbg("%s - unable to handle the error, exiting.", __func__);
return;
}
usb_serial_debug_data(debug, &port->dev, __func__,
urb->actual_length, urb->transfer_buffer);
spin_lock_irqsave(&priv->lock, flags);
line_status = priv->line_status;
priv->line_status &= ~UART_STATE_TRANSIENT_MASK;
spin_unlock_irqrestore(&priv->lock, flags);
wake_up_interruptible(&priv->delta_msr_wait);
tty = tty_port_tty_get(&port->port);
if (tty && urb->actual_length) {
pl2303_push_data(tty, port, urb, line_status);
}
tty_kref_put(tty);
/* Schedule the next read _if_ we are still open */
if (port->port.count) {
urb->dev = port->serial->dev;
result = usb_submit_urb(urb, GFP_ATOMIC);
if (result)
dev_err(&urb->dev->dev, "%s - failed resubmitting"
" read urb, error %d\n", __func__, result);
}
return;
}
static void pl2303_write_bulk_callback(struct urb *urb)
{
struct usb_serial_port *port = urb->context;
struct pl2303_private *priv = usb_get_serial_port_data(port);
int result;
int status = urb->status;
dbg("%s - port %d", __func__, port->number);
switch (status) {
case 0:
/* success */
break;
case -ECONNRESET:
case -ENOENT:
case -ESHUTDOWN:
/* this urb is terminated, clean up */
dbg("%s - urb shutting down with status: %d", __func__,
status);
priv->write_urb_in_use = 0;
return;
default:
/* error in the urb, so we have to resubmit it */
dbg("%s - Overflow in write", __func__);
dbg("%s - nonzero write bulk status received: %d", __func__,
status);
port->write_urb->transfer_buffer_length = 1;
port->write_urb->dev = port->serial->dev;
result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
if (result)
dev_err(&urb->dev->dev, "%s - failed resubmitting write"
" urb, error %d\n", __func__, result);
else
return;
}
priv->write_urb_in_use = 0;
/* send any buffered data */
pl2303_send(port);
}
/* All of the device info needed for the PL2303 SIO serial converter */
static struct usb_serial_driver pl2303_device = {
.driver = {
.owner = THIS_MODULE,
.name = "pl2303",
},
.id_table = id_table,
.usb_driver = &pl2303_driver,
.num_ports = 1,
.open = pl2303_open,
.close = pl2303_close,
.dtr_rts = pl2303_dtr_rts,
.carrier_raised = pl2303_carrier_raised,
.write = pl2303_write,
.ioctl = pl2303_ioctl,
.break_ctl = pl2303_break_ctl,
.set_termios = pl2303_set_termios,
.tiocmget = pl2303_tiocmget,
.tiocmset = pl2303_tiocmset,
.read_bulk_callback = pl2303_read_bulk_callback,
.read_int_callback = pl2303_read_int_callback,
.write_bulk_callback = pl2303_write_bulk_callback,
.write_room = pl2303_write_room,
.chars_in_buffer = pl2303_chars_in_buffer,
.attach = pl2303_startup,
.release = pl2303_release,
};
static int __init pl2303_init(void)
{
int retval;
retval = usb_serial_register(&pl2303_device);
if (retval)
goto failed_usb_serial_register;
retval = usb_register(&pl2303_driver);
if (retval)
goto failed_usb_register;
printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_DESC "\n");
return 0;
failed_usb_register:
usb_serial_deregister(&pl2303_device);
failed_usb_serial_register:
return retval;
}
static void __exit pl2303_exit(void)
{
usb_deregister(&pl2303_driver);
usb_serial_deregister(&pl2303_device);
}
module_init(pl2303_init);
module_exit(pl2303_exit);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
module_param(debug, bool, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug, "Debug enabled or not");
文件五：
pl2303.h
/*
* Prolific PL2303 USB to serial adaptor driver header file
*
* 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.
*
*/
#define BENQ_VENDOR_ID 0x04a5
#define BENQ_PRODUCT_ID_S81 0x4027
#define PL2303_VENDOR_ID 0x067b
#define PL2303_PRODUCT_ID 0x2303
#define PL2303_PRODUCT_ID_RSAQ2 0x04bb
#define PL2303_PRODUCT_ID_DCU11 0x1234
#define PL2303_PRODUCT_ID_PHAROS 0xaaa0
#define PL2303_PRODUCT_ID_RSAQ3 0xaaa2
#define PL2303_PRODUCT_ID_ALDIGA 0x0611
#define PL2303_PRODUCT_ID_MMX 0x0612
#define PL2303_PRODUCT_ID_GPRS 0x0609
#define ATEN_VENDOR_ID 0x0557
#define ATEN_VENDOR_ID2 0x0547
#define ATEN_PRODUCT_ID 0x2008
#define IODATA_VENDOR_ID 0x04bb
#define IODATA_PRODUCT_ID 0x0a03
#define IODATA_PRODUCT_ID_RSAQ5 0x0a0e
#define ELCOM_VENDOR_ID 0x056e
#define ELCOM_PRODUCT_ID 0x5003
#define ELCOM_PRODUCT_ID_UCSGT 0x5004
#define ITEGNO_VENDOR_ID 0x0eba
#define ITEGNO_PRODUCT_ID 0x1080
#define ITEGNO_PRODUCT_ID_2080 0x2080
#define MA620_VENDOR_ID 0x0df7
#define MA620_PRODUCT_ID 0x0620
#define RATOC_VENDOR_ID 0x0584
#define RATOC_PRODUCT_ID 0xb000
#define TRIPP_VENDOR_ID 0x2478
#define TRIPP_PRODUCT_ID 0x2008
#define RADIOSHACK_VENDOR_ID 0x1453
#define RADIOSHACK_PRODUCT_ID 0x4026
#define DCU10_VENDOR_ID 0x0731
#define DCU10_PRODUCT_ID 0x0528
#define SITECOM_VENDOR_ID 0x6189
#define SITECOM_PRODUCT_ID 0x2068
/* Alcatel OT535/735 USB cable */
#define ALCATEL_VENDOR_ID 0x11f7
#define ALCATEL_PRODUCT_ID 0x02df
/* Samsung I330 phone cradle */
#define SAMSUNG_VENDOR_ID 0x04e8
#define SAMSUNG_PRODUCT_ID 0x8001
#define SIEMENS_VENDOR_ID 0x11f5
#define SIEMENS_PRODUCT_ID_SX1 0x0001
#define SIEMENS_PRODUCT_ID_X65 0x0003
#define SIEMENS_PRODUCT_ID_X75 0x0004
#define SIEMENS_PRODUCT_ID_EF81 0x0005
#define SYNTECH_VENDOR_ID 0x0745
#define SYNTECH_PRODUCT_ID 0x0001
/* Nokia CA-42 Cable */
#define NOKIA_CA42_VENDOR_ID 0x078b
#define NOKIA_CA42_PRODUCT_ID 0x1234
/* CA-42 CLONE Cable www.ca-42.com chipset: Prolific Technology Inc */
#define CA_42_CA42_VENDOR_ID 0x10b5
#define CA_42_CA42_PRODUCT_ID 0xac70
#define SAGEM_VENDOR_ID 0x079b
#define SAGEM_PRODUCT_ID 0x0027
/* Leadtek GPS 9531 (ID 0413:2101) */
#define LEADTEK_VENDOR_ID 0x0413
#define LEADTEK_9531_PRODUCT_ID 0x2101
/* USB GSM cable from Speed Dragon Multimedia, Ltd */
#define SPEEDDRAGON_VENDOR_ID 0x0e55
#define SPEEDDRAGON_PRODUCT_ID 0x110b
/* DATAPILOT Universal-2 Phone Cable */
#define DATAPILOT_U2_VENDOR_ID 0x0731
#define DATAPILOT_U2_PRODUCT_ID 0x2003
/* Belkin "F5U257" Serial Adapter */
#define BELKIN_VENDOR_ID 0x050d
#define BELKIN_PRODUCT_ID 0x0257
/* Alcor Micro Corp. USB 2.0 TO RS-232 */
#define ALCOR_VENDOR_ID 0x058F
#define ALCOR_PRODUCT_ID 0x9720
/* Willcom WS002IN Data Driver (by NetIndex Inc.) */
#define WS002IN_VENDOR_ID 0x11f6
#define WS002IN_PRODUCT_ID 0x2001
/* Corega CG-USBRS232R Serial Adapter */
#define COREGA_VENDOR_ID 0x07aa
#define COREGA_PRODUCT_ID 0x002a
/* Y.C. Cable U.S.A., Inc - USB to RS-232 */
#define YCCABLE_VENDOR_ID 0x05ad
#define YCCABLE_PRODUCT_ID 0x0fba
/* "Superial" USB - Serial */
#define SUPERIAL_VENDOR_ID 0x5372
#define SUPERIAL_PRODUCT_ID 0x2303
/* Hewlett-Packard LD220-HP POS Pole Display */
#define HP_VENDOR_ID 0x03f0
#define HP_LD220_PRODUCT_ID 0x3524
/* Cressi Edy (diving computer) PC interface */
#define CRESSI_VENDOR_ID 0x04b8
#define CRESSI_EDY_PRODUCT_ID 0x0521
/* Sony, USB data cable for CMD-Jxx mobile phones */
#define SONY_VENDOR_ID 0x054c
#define SONY_QN3USB_PRODUCT_ID 0x0437
/* Sanwa KB-USB2 multimeter cable (ID: 11ad:0001) */
#define SANWA_VENDOR_ID 0x11ad
#define SANWA_PRODUCT_ID 0x0001
文件六：
usb-serial.c
/*
* USB Serial Converter driver
*
* Copyright (C) 1999 - 2005 Greg Kroah-Hartman (greg@kroah.com)
* Copyright (C) 2000 Peter Berger (pberger@brimson.com)
* Copyright (C) 2000 Al Borchers (borchers@steinerpoint.com)
*
* 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.
*
* This driver was originally based on the ACM driver by Armin Fuerst (which was
* based on a driver by Brad Keryan)
*
* See Documentation/usb/usb-serial.txt for more information on using this
* driver
*
*/
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/smp_lock.h>
#include <linux/tty.h>
#include <linux/tty_driver.h>
#include <linux/tty_flip.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/seq_file.h>
#include <linux/spinlock.h>
#include <linux/mutex.h>
#include <linux/list.h>
#include <linux/uaccess.h>
#include <linux/serial.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
#include <linux/kfifo.h>
#include "bus.c"
#include "generic.c"
#include "pl2303.h"
/*
* Version Information
*/
#define DRIVER_AUTHOR "Greg Kroah-Hartman, greg@kroah.com, http://www.kroah.com/linux/"
#define DRIVER_DESC "USB Serial Driver core"
/* Driver structure we register with the USB core */
static struct usb_driver usb_serial_driver = {
.name = "usbserial",
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.suspend = usb_serial_suspend,
.resume = usb_serial_resume,
.no_dynamic_id = 1,
};
/* There is no MODULE_DEVICE_TABLE for usbserial.c. Instead
the MODULE_DEVICE_TABLE declarations in each serial driver
cause the "hotplug" program to pull in whatever module is necessary
via modprobe, and modprobe will load usbserial because the serial
drivers depend on it.
*/
static int debug;
/* initially all NULL */
static struct usb_serial *serial_table[SERIAL_TTY_MINORS];
static DEFINE_MUTEX(table_lock);
static LIST_HEAD(usb_serial_driver_list);
/*
* Look up the serial structure. If it is found and it hasn't been
* disconnected, return with its disc_mutex held and its refcount
* incremented. Otherwise return NULL.
*/
struct usb_serial *usb_serial_get_by_index(unsigned index)
{
struct usb_serial *serial;
printk(KERN_ALERT "**************************usb_serial_get_by_index");
mutex_lock(&table_lock);
serial = serial_table[index];
if (serial) {
mutex_lock(&serial->disc_mutex);
if (serial->disconnected) {
mutex_unlock(&serial->disc_mutex);
serial = NULL;
} else {
kref_get(&serial->kref);
}
}
mutex_unlock(&table_lock);
return serial;
}
static struct usb_serial *get_free_serial(struct usb_serial *serial,
int num_ports, unsigned int *minor)
{
unsigned int i, j;
int good_spot;
printk(KERN_ALERT "**************************usb_serial *get_free_serial");
dbg("%s %d", __func__, num_ports);
*minor = 0;
mutex_lock(&table_lock);
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 ((i+j >= SERIAL_TTY_MINORS) || (serial_table[i+j])) {
good_spot = 0;
i += j;
break;
}
if (good_spot == 0)
continue;
*minor = i;
j = 0;
dbg("%s - minor base = %d", __func__, *minor);
for (i = *minor; (i < (*minor + num_ports)) && (i < SERIAL_TTY_MINORS); ++i) {
serial_table[i] = serial;
serial->port[j++]->number = i;
}
mutex_unlock(&table_lock);
return serial;
}
mutex_unlock(&table_lock);
return NULL;
}
static void return_serial(struct usb_serial *serial)
{
int i;
printk(KERN_ALERT "**************************return_serial");
dbg("%s", __func__);
mutex_lock(&table_lock);
for (i = 0; i < serial->num_ports; ++i)
serial_table[serial->minor + i] = NULL;
mutex_unlock(&table_lock);
}
static void destroy_serial(struct kref *kref)
{
struct usb_serial *serial;
struct usb_serial_port *port;
int i;
printk(KERN_ALERT "**************************destroy_serial");
serial = to_usb_serial(kref);
dbg("%s - %s", __func__, serial->type->description);
/* return the minor range that this device had */
if (serial->minor != SERIAL_TTY_NO_MINOR)
return_serial(serial);
if (serial->attached)
serial->type->release(serial);
/* Now that nothing is using the ports, they can be freed */
for (i = 0; i < serial->num_port_pointers; ++i) {
port = serial->port[i];
if (port) {
port->serial = NULL;
put_device(&port->dev);
}
}
usb_put_dev(serial->dev);
kfree(serial);
}
void usb_serial_put(struct usb_serial *serial)
{
kref_put(&serial->kref, destroy_serial);
}
/*****************************************************************************
* Driver tty interface functions
*****************************************************************************/
/**
* serial_install - install tty
* @driver: the driver (USB in our case)
* @tty: the tty being created
*
* Create the termios objects for this tty. We use the default
* USB serial settings but permit them to be overridden by
* serial->type->init_termios.
*
* This is the first place a new tty gets used. Hence this is where we
* acquire references to the usb_serial structure and the driver module,
* where we store a pointer to the port, and where we do an autoresume.
* All these actions are reversed in serial_cleanup().
*/
static int serial_install(struct tty_driver *driver, struct tty_struct *tty)
{
printk(KERN_ALERT "**************************serial_install");
int idx = tty->index;
struct usb_serial *serial;
struct usb_serial_port *port;
int retval = -ENODEV;
dbg("%s", __func__);
serial = usb_serial_get_by_index(idx);
if (!serial)
return retval;
port = serial->port[idx - serial->minor];
if (!port)
goto error_no_port;
if (!try_module_get(serial->type->driver.owner))
goto error_module_get;
/* perform the standard setup */
retval = tty_init_termios(tty);
if (retval)
goto error_init_termios;
retval = usb_autopm_get_interface(serial->interface);
if (retval)
goto error_get_interface;
mutex_unlock(&serial->disc_mutex);
/* allow the driver to update the settings */
if (serial->type->init_termios)
serial->type->init_termios(tty);
tty->driver_data = port;
/* Final install (we use the default method) */
tty_driver_kref_get(driver);
tty->count++;
driver->ttys[idx] = tty;
printk(KERN_ALERT "**************************destroy_serial%d",idx);
return retval;
error_get_interface:
error_init_termios:
module_put(serial->type->driver.owner);
error_module_get:
error_no_port:
usb_serial_put(serial);
mutex_unlock(&serial->disc_mutex);
return retval;
}
static int serial_open(struct tty_struct *tty, struct file *filp)
{
struct usb_serial_port *port = tty->driver_data;
struct usb_serial *serial = port->serial;
int retval;
dbg("%s - port %d", __func__, port->number);
spin_lock_irq(&port->port.lock);
if (!tty_hung_up_p(filp))
++port->port.count;
spin_unlock_irq(&port->port.lock);
tty_port_tty_set(&port->port, tty);
/* Do the device-specific open only if the hardware isn't
* already initialized.
*/
if (!test_bit(ASYNCB_INITIALIZED, &port->port.flags)) {
if (mutex_lock_interruptible(&port->mutex))
return -ERESTARTSYS;
mutex_lock(&serial->disc_mutex);
if (serial->disconnected)
retval = -ENODEV;
else
retval = port->serial->type->open(tty, port);
mutex_unlock(&serial->disc_mutex);
mutex_unlock(&port->mutex);
if (retval)
return retval;
set_bit(ASYNCB_INITIALIZED, &port->port.flags);
}
/* Now do the correct tty layer semantics */
retval = tty_port_block_til_ready(&port->port, tty, filp);
return retval;
}
/**
* serial_down - shut down hardware
* @port: port to shut down
*
* Shut down a USB serial port unless it is the console. We never
* shut down the console hardware as it will always be in use.
*/
static void serial_down(struct usb_serial_port *port)
{
struct usb_serial_driver *drv = port->serial->type;
/*
* The console is magical. Do not hang up the console hardware
* or there will be tears.
*/
if (port->console)
return;
/* Don't call the close method if the hardware hasn't been
* initialized.
*/
if (!test_and_clear_bit(ASYNCB_INITIALIZED, &port->port.flags))
return;
mutex_lock(&port->mutex);
if (drv->close)
drv->close(port);
mutex_unlock(&port->mutex);
}
static void serial_hangup(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
dbg("%s - port %d", __func__, port->number);
serial_down(port);
tty_port_hangup(&port->port);
}
static void serial_close(struct tty_struct *tty, struct file *filp)
{
struct usb_serial_port *port = tty->driver_data;
dbg("%s - port %d", __func__, port->number);
if (tty_hung_up_p(filp))
return;
if (tty_port_close_start(&port->port, tty, filp) == 0)
return;
serial_down(port);
tty_port_close_end(&port->port, tty);
tty_port_tty_set(&port->port, NULL);
}
/**
* serial_cleanup - free resources post close/hangup
* @port: port to free up
*
* Do the resource freeing and refcount dropping for the port.
* Avoid freeing the console.
*
* Called asynchronously after the last tty kref is dropped,
* and the tty layer has already done the tty_shutdown(tty);
*/
static void serial_cleanup(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct usb_serial *serial;
struct module *owner;
/* The console is magical. Do not hang up the console hardware
* or there will be tears.
*/
if (port->console)
return;
dbg("%s - port %d", __func__, port->number);
tty->driver_data = NULL;
serial = port->serial;
owner = serial->type->driver.owner;
mutex_lock(&serial->disc_mutex);
if (!serial->disconnected)
usb_autopm_put_interface(serial->interface);
mutex_unlock(&serial->disc_mutex);
usb_serial_put(serial);
module_put(owner);
}
static int serial_write(struct tty_struct *tty, const unsigned char *buf,
int count)
{
struct usb_serial_port *port = tty->driver_data;
int retval = -ENODEV;
if (port->serial->dev->state == USB_STATE_NOTATTACHED)
goto exit;
dbg("%s - port %d, %d byte(s)", __func__, port->number, count);
/* count is managed under the mutex lock for the tty so cannot
drop to zero until after the last close completes */
WARN_ON(!port->port.count);
/* pass on to the driver specific version of this function */
retval = port->serial->type->write(tty, port, buf, count);
exit:
return retval;
}
static int serial_write_room(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
dbg("%s - port %d", __func__, port->number);
WARN_ON(!port->port.count);
/* pass on to the driver specific version of this function */
return port->serial->type->write_room(tty);
}
static int serial_chars_in_buffer(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
dbg("%s = port %d", __func__, port->number);
/* if the device was unplugged then any remaining characters
fell out of the connector ;) */
if (port->serial->disconnected)
return 0;
/* pass on to the driver specific version of this function */
return port->serial->type->chars_in_buffer(tty);
}
static void serial_throttle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
dbg("%s - port %d", __func__, port->number);
WARN_ON(!port->port.count);
/* pass on to the driver specific version of this function */
if (port->serial->type->throttle)
port->serial->type->throttle(tty);
}
static void serial_unthrottle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
dbg("%s - port %d", __func__, port->number);
WARN_ON(!port->port.count);
/* pass on to the driver specific version of this function */
if (port->serial->type->unthrottle)
port->serial->type->unthrottle(tty);
}
static int serial_ioctl(struct tty_struct *tty, struct file *file,
unsigned int cmd, unsigned long arg)
{
struct usb_serial_port *port = tty->driver_data;
int retval = -ENODEV;
dbg("%s - port %d, cmd 0x%.4x", __func__, port->number, cmd);
WARN_ON(!port->port.count);
/* pass on to the driver specific version of this function
if it is available */
if (port->serial->type->ioctl) {
retval = port->serial->type->ioctl(tty, file, cmd, arg);
} else
retval = -ENOIOCTLCMD;
return retval;
}
static void serial_set_termios(struct tty_struct *tty, struct ktermios *old)
{
struct usb_serial_port *port = tty->driver_data;
dbg("%s - port %d", __func__, port->number);
WARN_ON(!port->port.count);
/* pass on to the driver specific version of this function
if it is available */
if (port->serial->type->set_termios)
port->serial->type->set_termios(tty, port, old);
else
tty_termios_copy_hw(tty->termios, old);
}
static int serial_break(struct tty_struct *tty, int break_state)
{
struct usb_serial_port *port = tty->driver_data;
dbg("%s - port %d", __func__, port->number);
WARN_ON(!port->port.count);
/* pass on to the driver specific version of this function
if it is available */
if (port->serial->type->break_ctl)
port->serial->type->break_ctl(tty, break_state);
return 0;
}
static int serial_proc_show(struct seq_file *m, void *v)
{
struct usb_serial *serial;
int i;
char tmp[40];
dbg("%s", __func__);
seq_puts(m, "usbserinfo:1.0 driver:2.0\n");
for (i = 0; i < SERIAL_TTY_MINORS; ++i) {
serial = usb_serial_get_by_index(i);
if (serial == NULL)
continue;
seq_printf(m, "%d:", i);
if (serial->type->driver.owner)
seq_printf(m, " module:%s",
module_name(serial->type->driver.owner));
seq_printf(m, " name:\"%s\"",
serial->type->description);
seq_printf(m, " vendor:%04x product:%04x",
le16_to_cpu(serial->dev->descriptor.idVendor),
le16_to_cpu(serial->dev->descriptor.idProduct));
seq_printf(m, " num_ports:%d", serial->num_ports);
seq_printf(m, " port:%d", i - serial->minor + 1);
usb_make_path(serial->dev, tmp, sizeof(tmp));
seq_printf(m, " path:%s", tmp);
seq_putc(m, '\n');
usb_serial_put(serial);
mutex_unlock(&serial->disc_mutex);
}
return 0;
}
static int serial_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, serial_proc_show, NULL);
}
static const struct file_operations serial_proc_fops = {
.owner = THIS_MODULE,
.open = serial_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static int serial_tiocmget(struct tty_struct *tty, struct file *file)
{
struct usb_serial_port *port = tty->driver_data;
dbg("%s - port %d", __func__, port->number);
WARN_ON(!port->port.count);
if (port->serial->type->tiocmget)
return port->serial->type->tiocmget(tty, file);
return -EINVAL;
}
static int serial_tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear)
{
struct usb_serial_port *port = tty->driver_data;
dbg("%s - port %d", __func__, port->number);
WARN_ON(!port->port.count);
if (port->serial->type->tiocmset)
return port->serial->type->tiocmset(tty, file, set, clear);
return -EINVAL;
}
/*
* We would be calling tty_wakeup here, but unfortunately some line
* disciplines have an annoying habit of calling tty->write from
* the write wakeup callback (e.g. n_hdlc.c).
*/
void usb_serial_port_softint(struct usb_serial_port *port)
{
schedule_work(&port->work);
}
EXPORT_SYMBOL_GPL(usb_serial_port_softint);
static void usb_serial_port_work(struct work_struct *work)
{
struct usb_serial_port *port =
container_of(work, struct usb_serial_port, work);
struct tty_struct *tty;
dbg("%s - port %d", __func__, port->number);
tty = tty_port_tty_get(&port->port);
if (!tty)
return;
tty_wakeup(tty);
tty_kref_put(tty);
}
static void kill_traffic(struct usb_serial_port *port)
{
usb_kill_urb(port->read_urb);
usb_kill_urb(port->write_urb);
/*
* This is tricky.
* Some drivers submit the read_urb in the
* handler for the write_urb or vice versa
* this order determines the order in which
* usb_kill_urb() must be used to reliably
* kill the URBs. As it is unknown here,
* both orders must be used in turn.
* The call below is not redundant.
*/
usb_kill_urb(port->read_urb);
usb_kill_urb(port->interrupt_in_urb);
usb_kill_urb(port->interrupt_out_urb);
}
static void port_release(struct device *dev)
{
struct usb_serial_port *port = to_usb_serial_port(dev);
dbg ("%s - %s", __func__, dev_name(dev));
/*
* Stop all the traffic before cancelling the work, so that
* nobody will restart it by calling usb_serial_port_softint.
*/
kill_traffic(port);
cancel_work_sync(&port->work);
usb_free_urb(port->read_urb);
usb_free_urb(port->write_urb);
usb_free_urb(port->interrupt_in_urb);
usb_free_urb(port->interrupt_out_urb);
if (!IS_ERR(port->write_fifo) && port->write_fifo)
kfifo_free(port->write_fifo);
kfree(port->bulk_in_buffer);
kfree(port->bulk_out_buffer);
kfree(port->interrupt_in_buffer);
kfree(port->interrupt_out_buffer);
kfree(port);
}
static struct usb_serial *create_serial(struct usb_device *dev,
struct usb_interface *interface,
struct usb_serial_driver *driver)
{
printk(KERN_ALERT "***************************usb_serial *create_serial\n");
struct usb_serial *serial;
serial = kzalloc(sizeof(*serial), GFP_KERNEL);
if (!serial) {
dev_err(&dev->dev, "%s - out of memory\n", __func__);
return NULL;
}
serial->dev = usb_get_dev(dev);
serial->type = driver;
serial->interface = interface;
kref_init(&serial->kref);
mutex_init(&serial->disc_mutex);
serial->minor = SERIAL_TTY_NO_MINOR;
return serial;
}
static const struct usb_device_id *match_dynamic_id(struct usb_interface *intf,
struct usb_serial_driver *drv)
{
struct usb_dynid *dynid;
printk(KERN_ALERT "**************************usb_device_id *match_dynamic_id\n");
spin_lock(&drv->dynids.lock);
list_for_each_entry(dynid, &drv->dynids.list, node) {
if (usb_match_one_id(intf, &dynid->id)) {
spin_unlock(&drv->dynids.lock);
return &dynid->id;
}
}
spin_unlock(&drv->dynids.lock);
return NULL;
}
static const struct usb_device_id *get_iface_id(struct usb_serial_driver *drv,
struct usb_interface *intf)
{
const struct usb_device_id *id;
printk(KERN_ALERT "************************** usb_device_id *get_iface_id\n");
id = usb_match_id(intf, drv->id_table);
if (id) {
dbg("static descriptor matches");
goto exit;
}
id = match_dynamic_id(intf, drv);
if (id)
dbg("dynamic descriptor matches");
exit:
return id;
}
static struct usb_serial_driver *search_serial_device(
struct usb_interface *iface)
{
const struct usb_device_id *id;
struct usb_serial_driver *drv;
printk(KERN_ALERT "**************************usb_serial_driver *search_serial_device");
/* Check if the usb id matches a known device */
list_for_each_entry(drv, &usb_serial_driver_list, driver_list) {
id = get_iface_id(drv, iface);
if (id)
return drv;
}
return NULL;
}
static int serial_carrier_raised(struct tty_port *port)
{
struct usb_serial_port *p = container_of(port, struct usb_serial_port, port);
struct usb_serial_driver *drv = p->serial->type;
if (drv->carrier_raised)
return drv->carrier_raised(p);
/* No carrier control - don't block */
return 1;
}
static void serial_dtr_rts(struct tty_port *port, int on)
{
struct usb_serial_port *p = container_of(port, struct usb_serial_port, port);
struct usb_serial_driver *drv = p->serial->type;
if (drv->dtr_rts)
drv->dtr_rts(p, on);
}
static const struct tty_port_operations serial_port_ops = {
.carrier_raised = serial_carrier_raised,
.dtr_rts = serial_dtr_rts,
};
int usb_serial_probe(struct usb_interface *interface,
const struct usb_device_id *id)
{
struct usb_device *dev = interface_to_usbdev(interface);
struct usb_serial *serial = NULL;
struct usb_serial_port *port;
struct usb_host_interface *iface_desc;
struct usb_endpoint_descriptor *endpoint;
struct usb_endpoint_descriptor *interrupt_in_endpoint[MAX_NUM_PORTS];
struct usb_endpoint_descriptor *interrupt_out_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_driver *type = NULL;
int retval;
unsigned int minor;
int buffer_size;
int i;
int num_interrupt_in = 0;
int num_interrupt_out = 0;
int num_bulk_in = 0;
int num_bulk_out = 0;
int num_ports = 0;
int max_endpoints;
lock_kernel(); /* guard against unloading a serial driver module */
type = search_serial_device(interface);
if (!type) {
unlock_kernel();
dbg("none matched");
return -ENODEV;
}
serial = create_serial(dev, interface, type);
if (!serial) {
unlock_kernel();
dev_err(&interface->dev, "%s - out of memory\n", __func__);
return -ENOMEM;
}
/* if this device type has a probe function, call it */
if (type->probe) {
const struct usb_device_id *id;
if (!try_module_get(type->driver.owner)) {
unlock_kernel();
dev_err(&interface->dev,
"module get failed, exiting\n");
kfree(serial);
return -EIO;
}
id = get_iface_id(type, interface);
retval = type->probe(serial, id);
module_put(type->driver.owner);
if (retval) {
unlock_kernel();
dbg("sub driver rejected device");
kfree(serial);
return retval;
}
}
/* descriptor matches, let's find the endpoints needed */
/* check out the endpoints */
iface_desc = interface->cur_altsetting;
for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
endpoint = &iface_desc->endpoint[i].desc;
if (usb_endpoint_is_bulk_in(endpoint)) {
/* we found a bulk in endpoint */
dbg("found bulk in on endpoint %d", i);
bulk_in_endpoint[num_bulk_in] = endpoint;
++num_bulk_in;
}
if (usb_endpoint_is_bulk_out(endpoint)) {
/* we found a bulk out endpoint */
dbg("found bulk out on endpoint %d", i);
bulk_out_endpoint[num_bulk_out] = endpoint;
++num_bulk_out;
}
if (usb_endpoint_is_int_in(endpoint)) {
/* we found a interrupt in endpoint */
dbg("found interrupt in on endpoint %d", i);
interrupt_in_endpoint[num_interrupt_in] = endpoint;
++num_interrupt_in;
}
if (usb_endpoint_is_int_out(endpoint)) {
/* we found an interrupt out endpoint */
dbg("found interrupt out on endpoint %d", i);
interrupt_out_endpoint[num_interrupt_out] = endpoint;
++num_interrupt_out;
}
}
#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 (((le16_to_cpu(dev->descriptor.idVendor) == PL2303_VENDOR_ID) &&
(le16_to_cpu(dev->descriptor.idProduct) == PL2303_PRODUCT_ID)) ||
((le16_to_cpu(dev->descriptor.idVendor) == ATEN_VENDOR_ID) &&
(le16_to_cpu(dev->descriptor.idProduct) == ATEN_PRODUCT_ID)) ||
((le16_to_cpu(dev->descriptor.idVendor) == ALCOR_VENDOR_ID) &&
(le16_to_cpu(dev->descriptor.idProduct) == ALCOR_PRODUCT_ID)) ||
((le16_to_cpu(dev->descriptor.idVendor) == SIEMENS_VENDOR_ID) &&
(le16_to_cpu(dev->descriptor.idProduct) == SIEMENS_PRODUCT_ID_EF81))) {
if (interface != dev->actconfig->interface[0]) {
/* check out the endpoints of the other interface*/
iface_desc = dev->actconfig->interface[0]->cur_altsetting;
for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
endpoint = &iface_desc->endpoint[i].desc;
if (usb_endpoint_is_int_in(endpoint)) {
/* 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) {
unlock_kernel();
dev_info(&interface->dev, "PL-2303 hack: descriptors matched but endpoints did not\n");
kfree(serial);
return -ENODEV;
}
}
/* END HORRIBLE HACK FOR PL2303 */
#endif
#ifdef CONFIG_USB_SERIAL_GENERIC
if (type == &usb_serial_generic_device) {
num_ports = num_bulk_out;
if (num_ports == 0) {
unlock_kernel();
dev_err(&interface->dev,
"Generic device with no bulk out, not allowed.\n");
kfree(serial);
return -EIO;
}
}
#endif
if (!num_ports) {
/* if this device type has a calc_num_ports function, call it */
if (type->calc_num_ports) {
if (!try_module_get(type->driver.owner)) {
unlock_kernel();
dev_err(&interface->dev,
"module get failed, exiting\n");
kfree(serial);
return -EIO;
}
num_ports = type->calc_num_ports(serial);
module_put(type->driver.owner);
}
if (!num_ports)
num_ports = type->num_ports;
}
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->num_interrupt_out = num_interrupt_out;
/* found all that we need */
dev_info(&interface->dev, "%s converter detected\n",
type->description);
/* create our ports, we need as many as the max endpoints */
/* we don't use num_ports here because 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, num_interrupt_out);
max_endpoints = max(max_endpoints, (int)serial->num_ports);
serial->num_port_pointers = max_endpoints;
unlock_kernel();
dbg("%s - setting up %d port structures for this device",
__func__, max_endpoints);
for (i = 0; i < max_endpoints; ++i) {
port = kzalloc(sizeof(struct usb_serial_port), GFP_KERNEL);
if (!port)
goto probe_error;
tty_port_init(&port->port);
port->port.ops = &serial_port_ops;
port->serial = serial;
spin_lock_init(&port->lock);
mutex_init(&port->mutex);
INIT_WORK(&port->work, usb_serial_port_work);
serial->port[i] = port;
port->dev.parent = &interface->dev;
port->dev.driver = NULL;
port->dev.bus = &usb_serial_bus_type;
port->dev.release = &port_release;
device_initialize(&port->dev);
}
/* 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, GFP_KERNEL);
if (!port->read_urb) {
dev_err(&interface->dev, "No free urbs available\n");
goto probe_error;
}
buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
port->bulk_in_size = buffer_size;
port->bulk_in_endpointAddress = endpoint->bEndpointAddress;
port->bulk_in_buffer = kmalloc(buffer_size, GFP_KERNEL);
if (!port->bulk_in_buffer) {
dev_err(&interface->dev,
"Couldn't allocate bulk_in_buffer\n");
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, 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, GFP_KERNEL);
if (!port->write_urb) {
dev_err(&interface->dev, "No free urbs available\n");
goto probe_error;
}
port->write_fifo = kfifo_alloc(PAGE_SIZE, GFP_KERNEL,
&port->lock);
if (IS_ERR(port->write_fifo))
goto probe_error;
buffer_size = le16_to_cpu(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) {
dev_err(&interface->dev,
"Couldn't allocate bulk_out_buffer\n");
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, port);
}
if (serial->type->read_int_callback) {
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, GFP_KERNEL);
if (!port->interrupt_in_urb) {
dev_err(&interface->dev,
"No free urbs available\n");
goto probe_error;
}
buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
port->interrupt_in_endpointAddress =
endpoint->bEndpointAddress;
port->interrupt_in_buffer = kmalloc(buffer_size,
GFP_KERNEL);
if (!port->interrupt_in_buffer) {
dev_err(&interface->dev,
"Couldn't allocate interrupt_in_buffer\n");
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);
}
} else if (num_interrupt_in) {
dbg("the device claims to support interrupt in transfers, but read_int_callback is not defined");
}
if (serial->type->write_int_callback) {
for (i = 0; i < num_interrupt_out; ++i) {
endpoint = interrupt_out_endpoint[i];
port = serial->port[i];
port->interrupt_out_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!port->interrupt_out_urb) {
dev_err(&interface->dev,
"No free urbs available\n");
goto probe_error;
}
buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
port->interrupt_out_size = buffer_size;
port->interrupt_out_endpointAddress =
endpoint->bEndpointAddress;
port->interrupt_out_buffer = kmalloc(buffer_size,
GFP_KERNEL);
if (!port->interrupt_out_buffer) {
dev_err(&interface->dev,
"Couldn't allocate interrupt_out_buffer\n");
goto probe_error;
}
usb_fill_int_urb(port->interrupt_out_urb, dev,
usb_sndintpipe(dev,
endpoint->bEndpointAddress),
port->interrupt_out_buffer, buffer_size,
serial->type->write_int_callback, port,
endpoint->bInterval);
}
} else if (num_interrupt_out) {
dbg("the device claims to support interrupt out transfers, but write_int_callback is not defined");
}
/* if this device type has an attach function, call it */
if (type->attach) {
if (!try_module_get(type->driver.owner)) {
dev_err(&interface->dev,
"module get failed, exiting\n");
goto probe_error;
}
retval = type->attach(serial);
module_put(type->driver.owner);
if (retval < 0)
goto probe_error;
serial->attached = 1;
if (retval > 0) {
/* quietly accept this device, but don't bind to a
serial port as it's about to disappear */
serial->num_ports = 0;
goto exit;
}
} else {
serial->attached = 1;
}
if (get_free_serial(serial, num_ports, &minor) == NULL) {
dev_err(&interface->dev, "No more free serial devices\n");
goto probe_error;
}
serial->minor = minor;
/* register all of the individual ports with the driver core */
for (i = 0; i < num_ports; ++i) {
port = serial->port[i];
dev_set_name(&port->dev, "ttyUSB%d", port->number);
dbg ("%s - registering %s", __func__, dev_name(&port->dev));
port->dev_state = PORT_REGISTERING;
retval = device_add(&port->dev);
if (retval) {
dev_err(&port->dev, "Error registering port device, "
"continuing\n");
port->dev_state = PORT_UNREGISTERED;
} else {
port->dev_state = PORT_REGISTERED;
}
}
usb_serial_console_init(debug, minor);
exit:
/* success */
usb_set_intfdata(interface, serial);
return 0;
probe_error:
usb_serial_put(serial);
return -EIO;
}
EXPORT_SYMBOL_GPL(usb_serial_probe);
void usb_serial_disconnect(struct usb_interface *interface)
{
int i;
struct usb_serial *serial = usb_get_intfdata(interface);
struct device *dev = &interface->dev;
struct usb_serial_port *port;
usb_serial_console_disconnect(serial);
dbg("%s", __func__);
mutex_lock(&serial->disc_mutex);
usb_set_intfdata(interface, NULL);
/* must set a flag, to signal subdrivers */
serial->disconnected = 1;
mutex_unlock(&serial->disc_mutex);
for (i = 0; i < serial->num_ports; ++i) {
port = serial->port[i];
if (port) {
struct tty_struct *tty = tty_port_tty_get(&port->port);
if (tty) {
tty_vhangup(tty);
tty_kref_put(tty);
}
kill_traffic(port);
cancel_work_sync(&port->work);
if (port->dev_state == PORT_REGISTERED) {
/* Make sure the port is bound so that the
* driver's port_remove method is called.
*/
if (!port->dev.driver) {
int rc;
port->dev.driver =
&serial->type->driver;
rc = device_bind_driver(&port->dev);
}
port->dev_state = PORT_UNREGISTERING;
device_del(&port->dev);
port->dev_state = PORT_UNREGISTERED;
}
}
}
serial->type->disconnect(serial);
/* let the last holder of this object cause it to be cleaned up */
usb_serial_put(serial);
dev_info(dev, "device disconnected\n");
}
EXPORT_SYMBOL_GPL(usb_serial_disconnect);
int usb_serial_suspend(struct usb_interface *intf, pm_message_t message)
{
struct usb_serial *serial = usb_get_intfdata(intf);
struct usb_serial_port *port;
int i, r = 0;
serial->suspending = 1;
if (serial->type->suspend) {
r = serial->type->suspend(serial, message);
if (r < 0) {
serial->suspending = 0;
goto err_out;
}
}
for (i = 0; i < serial->num_ports; ++i) {
port = serial->port[i];
if (port)
kill_traffic(port);
}
err_out:
return r;
}
EXPORT_SYMBOL(usb_serial_suspend);
int usb_serial_resume(struct usb_interface *intf)
{
struct usb_serial *serial = usb_get_intfdata(intf);
int rv;
serial->suspending = 0;
if (serial->type->resume)
rv = serial->type->resume(serial);
else
rv = usb_serial_generic_resume(serial);
return rv;
}
EXPORT_SYMBOL(usb_serial_resume);
static const struct tty_operations serial_ops = {
.open = serial_open,
.close = serial_close,
.write = serial_write,
.hangup = serial_hangup,
.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,
.tiocmget = serial_tiocmget,
.tiocmset = serial_tiocmset,
.cleanup = serial_cleanup,
.install = serial_install,
.proc_fops = &serial_proc_fops,
};
struct tty_driver *usb_serial_tty_driver;
static int __init usb_serial_init(void)
{
int i;
int result;
usb_serial_tty_driver = alloc_tty_driver(SERIAL_TTY_MINORS);
if (!usb_serial_tty_driver)
return -ENOMEM;
/* Initialize our global data */
for (i = 0; i < SERIAL_TTY_MINORS; ++i)
serial_table[i] = NULL;
result = bus_register(&usb_serial_bus_type);
if (result) {
printk(KERN_ERR "usb-serial: %s - registering bus driver "
"failed\n", __func__);
goto exit_bus;
}
usb_serial_tty_driver->owner = THIS_MODULE;
usb_serial_tty_driver->driver_name = "usbserial";
usb_serial_tty_driver->name = "ttyUSB";
usb_serial_tty_driver->major = SERIAL_TTY_MAJOR;
usb_serial_tty_driver->minor_start = 0;
usb_serial_tty_driver->type = TTY_DRIVER_TYPE_SERIAL;
usb_serial_tty_driver->subtype = SERIAL_TYPE_NORMAL;
usb_serial_tty_driver->flags = TTY_DRIVER_REAL_RAW |
TTY_DRIVER_DYNAMIC_DEV;
usb_serial_tty_driver->init_termios = tty_std_termios;
usb_serial_tty_driver->init_termios.c_cflag = B9600 | CS8 | CREAD
| HUPCL | CLOCAL;
usb_serial_tty_driver->init_termios.c_ispeed = 9600;
usb_serial_tty_driver->init_termios.c_ospeed = 9600;
tty_set_operations(usb_serial_tty_driver, &serial_ops);
result = tty_register_driver(usb_serial_tty_driver);
if (result) {
printk(KERN_ERR "usb-serial: %s - tty_register_driver failed\n",
__func__);
goto exit_reg_driver;
}
/* register the USB driver */
result = usb_register(&usb_serial_driver);
if (result < 0) {
printk(KERN_ERR "usb-serial: %s - usb_register failed\n",
__func__);
goto exit_tty;
}
/* register the generic driver, if we should */
result = usb_serial_generic_register(debug);
if (result < 0) {
printk(KERN_ERR "usb-serial: %s - registering generic "
"driver failed\n", __func__);
goto exit_generic;
}
printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_DESC "\n");
return result;
exit_generic:
usb_deregister(&usb_serial_driver);
exit_tty:
tty_unregister_driver(usb_serial_tty_driver);
exit_reg_driver:
bus_unregister(&usb_serial_bus_type);
exit_bus:
printk(KERN_ERR "usb-serial: %s - returning with error %d\n",
__func__, result);
put_tty_driver(usb_serial_tty_driver);
return result;
}
static void __exit usb_serial_exit(void)
{
usb_serial_console_exit();
usb_serial_generic_deregister();
usb_deregister(&usb_serial_driver);
tty_unregister_driver(usb_serial_tty_driver);
put_tty_driver(usb_serial_tty_driver);
bus_unregister(&usb_serial_bus_type);
}
module_init(usb_serial_init);
module_exit(usb_serial_exit);
#define set_to_generic_if_null(type, function) \
do { \
if (!type->function) { \
type->function = usb_serial_generic_##function; \
dbg("Had to override the " #function \
" usb serial operation with the generic one.");\
} \
} while (0)
static void fixup_generic(struct usb_serial_driver *device)
{
set_to_generic_if_null(device, open);
set_to_generic_if_null(device, write);
set_to_generic_if_null(device, close);
set_to_generic_if_null(device, write_room);
set_to_generic_if_null(device, chars_in_buffer);
set_to_generic_if_null(device, read_bulk_callback);
set_to_generic_if_null(device, write_bulk_callback);
set_to_generic_if_null(device, disconnect);
set_to_generic_if_null(device, release);
}
int usb_serial_register(struct usb_serial_driver *driver)
{
/* must be called with BKL held */
int retval;
if (usb_disabled())
return -ENODEV;
fixup_generic(driver);
if (!driver->description)
driver->description = driver->driver.name;
/* Add this device to our list of devices */
list_add(&driver->driver_list, &usb_serial_driver_list);
retval = usb_serial_bus_register(driver);
if (retval) {
printk(KERN_ERR "usb-serial: problem %d when registering "
"driver %s\n", retval, driver->description);
list_del(&driver->driver_list);
} else
printk(KERN_INFO "USB Serial support registered for %s\n",
driver->description);
return retval;
}
EXPORT_SYMBOL_GPL(usb_serial_register);
void usb_serial_deregister(struct usb_serial_driver *device)
{
/* must be called with BKL held */
printk(KERN_INFO "USB Serial deregistering driver %s\n",
device->description);
list_del(&device->driver_list);
usb_serial_bus_deregister(device);
}
EXPORT_SYMBOL_GPL(usb_serial_deregister);
/* Module information */
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");
文件七：
Makefile
# Makefile 2.6
obj-m += usb-serial.o option.o pl2303.o
KDIR:=/lib/modules/$(shell uname -r)/build
#PWD=$(shell pwd)
all:
make -C $(KDIR) M=$(PWD) modules
clean:
make -C $(KDIR) M=$(PWD) clean
依次运行：
sudo insmod ./usb-serial.ko
sudo insmod ./option.ko
sudo insmod ./pl2303.ko
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