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android_kernel_xiaomi_sm8350/drivers/usb/serial/sierra.c
Alan Cox 95da310e66 usb_serial: API all change 
USB serial likes to use port->tty back pointers for the real work it does and
to do so without any actual locking. Unfortunately when you consider hangup
events, hangup/parallel reopen or even worse hangup followed by parallel close
events the tty->port and port->tty pointers are not guaranteed to be the same
as port->tty is the active tty while tty->port is the port the tty may or
may not still be attached to.

So rework the entire API to pass the tty struct. For console cases we need
to pass both for now. This shows up multiple drivers that immediately crash
with USB console some of which have been fixed in the process.

Longer term we need a proper tty as console abstraction

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-22 13:03:22 -07:00

783 lines
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/*
USB Driver for Sierra Wireless
Copyright (C) 2006, 2007, 2008 Kevin Lloyd <klloyd@sierrawireless.com>
IMPORTANT DISCLAIMER: This driver is not commercially supported by
Sierra Wireless. Use at your own risk.
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 based on the option driver by Matthias Urlichs <smurf@smurf.noris.de>
Whom based his on the Keyspan driver by Hugh Blemings <hugh@blemings.org>
*/
#define DRIVER_VERSION "v.1.2.9c"
#define DRIVER_AUTHOR "Kevin Lloyd <klloyd@sierrawireless.com>"
#define DRIVER_DESC "USB Driver for Sierra Wireless USB 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/usb.h>
#include <linux/usb/serial.h>
#include <linux/usb/ch9.h>
#define SWIMS_USB_REQUEST_SetPower 0x00
#define SWIMS_USB_REQUEST_SetNmea 0x07
#define SWIMS_USB_REQUEST_SetMode 0x0B
#define SWIMS_SET_MODE_Modem 0x0001
/* per port private data */
#define N_IN_URB 4
#define N_OUT_URB 4
#define IN_BUFLEN 4096
static int debug;
static int nmea;
static int truinstall = 1;
enum devicetype {
DEVICE_3_PORT = 0,
DEVICE_1_PORT = 1,
DEVICE_INSTALLER = 2,
};
static int sierra_set_power_state(struct usb_device *udev, __u16 swiState)
{
int result;
dev_dbg(&udev->dev, "%s", "SET POWER STATE\n");
result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
SWIMS_USB_REQUEST_SetPower, /* __u8 request */
USB_TYPE_VENDOR, /* __u8 request type */
swiState, /* __u16 value */
0, /* __u16 index */
NULL, /* void *data */
0, /* __u16 size */
USB_CTRL_SET_TIMEOUT); /* int timeout */
return result;
}
static int sierra_set_ms_mode(struct usb_device *udev, __u16 eSWocMode)
{
int result;
dev_dbg(&udev->dev, "%s", "DEVICE MODE SWITCH\n");
result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
SWIMS_USB_REQUEST_SetMode, /* __u8 request */
USB_TYPE_VENDOR, /* __u8 request type */
eSWocMode, /* __u16 value */
0x0000, /* __u16 index */
NULL, /* void *data */
0, /* __u16 size */
USB_CTRL_SET_TIMEOUT); /* int timeout */
return result;
}
static int sierra_vsc_set_nmea(struct usb_device *udev, __u16 enable)
{
int result;
dev_dbg(&udev->dev, "%s", "NMEA Enable sent\n");
result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
SWIMS_USB_REQUEST_SetNmea, /* __u8 request */
USB_TYPE_VENDOR, /* __u8 request type */
enable, /* __u16 value */
0x0000, /* __u16 index */
NULL, /* void *data */
0, /* __u16 size */
USB_CTRL_SET_TIMEOUT); /* int timeout */
return result;
}
static int sierra_calc_num_ports(struct usb_serial *serial)
{
int result;
int *num_ports = usb_get_serial_data(serial);
result = *num_ports;
if (result) {
kfree(num_ports);
usb_set_serial_data(serial, NULL);
}
return result;
}
static int sierra_calc_interface(struct usb_serial *serial)
{
int interface;
struct usb_interface *p_interface;
struct usb_host_interface *p_host_interface;
/* Get the interface structure pointer from the serial struct */
p_interface = serial->interface;
/* Get a pointer to the host interface structure */
p_host_interface = p_interface->cur_altsetting;
/* read the interface descriptor for this active altsetting
* to find out the interface number we are on
*/
interface = p_host_interface->desc.bInterfaceNumber;
return interface;
}
static int sierra_probe(struct usb_serial *serial,
const struct usb_device_id *id)
{
int result = 0;
struct usb_device *udev;
int *num_ports;
u8 ifnum;
num_ports = kmalloc(sizeof(*num_ports), GFP_KERNEL);
if (!num_ports)
return -ENOMEM;
ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
udev = serial->dev;
/* Figure out the interface number from the serial structure */
ifnum = sierra_calc_interface(serial);
/*
* If this interface supports more than 1 alternate
* select the 2nd one
*/
if (serial->interface->num_altsetting == 2) {
dev_dbg(&udev->dev,
"Selecting alt setting for interface %d\n",
ifnum);
/* We know the alternate setting is 1 for the MC8785 */
usb_set_interface(udev, ifnum, 1);
}
/* Check if in installer mode */
if (truinstall && id->driver_info == DEVICE_INSTALLER) {
dev_dbg(&udev->dev, "%s", "FOUND TRU-INSTALL DEVICE(SW)\n");
result = sierra_set_ms_mode(udev, SWIMS_SET_MODE_Modem);
/* Don't bind to the device when in installer mode */
kfree(num_ports);
return -EIO;
} else if (id->driver_info == DEVICE_1_PORT)
*num_ports = 1;
else if (ifnum == 0x99)
*num_ports = 0;
else
*num_ports = 3;
/*
* save off our num_ports info so that we can use it in the
* calc_num_ports callback
*/
usb_set_serial_data(serial, (void *)num_ports);
return result;
}
static struct usb_device_id id_table [] = {
{ USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */
{ USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */
{ USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */
{ USB_DEVICE(0x0f30, 0x1b1d) }, /* Sierra Wireless MC5720 */
{ USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */
{ USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */
{ USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */
{ USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */
{ USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */
{ USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0023, 0xFF, 0xFF, 0xFF) }, /* Sierra Wireless C597 */
{ USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */
{ USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */
{ USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */
{ USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */
{ USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 (Thinkpad internal) */
{ USB_DEVICE(0x1199, 0x6815) }, /* Sierra Wireless MC8775 */
{ USB_DEVICE(0x03f0, 0x1e1d) }, /* HP hs2300 a.k.a MC8775 */
{ USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */
{ USB_DEVICE(0x1199, 0x6821) }, /* Sierra Wireless AirCard 875U */
{ USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780*/
{ USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781*/
{ USB_DEVICE(0x1199, 0x683B), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless MC8785 Composite*/
{ USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */
{ USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */
{ USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */
{ USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */
{ USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */
{ USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */
{ USB_DEVICE(0x1199, 0x6859), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless AirCard 885 E */
{ USB_DEVICE(0x1199, 0x685A), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless AirCard 885 E */
{ USB_DEVICE(0x1199, 0x6468) }, /* Sierra Wireless MP3G - EVDO */
{ USB_DEVICE(0x1199, 0x6469) }, /* Sierra Wireless MP3G - UMTS/HSPA */
{ USB_DEVICE(0x1199, 0x0112), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless AirCard 580 */
{ USB_DEVICE(0x0F3D, 0x0112), .driver_info = DEVICE_1_PORT }, /* Airprime/Sierra PC 5220 */
{ USB_DEVICE(0x1199, 0x0FFF), .driver_info = DEVICE_INSTALLER},
{ }
};
MODULE_DEVICE_TABLE(usb, id_table);
static struct usb_driver sierra_driver = {
.name = "sierra",
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table,
.no_dynamic_id = 1,
};
struct sierra_port_private {
spinlock_t lock; /* lock the structure */
int outstanding_urbs; /* number of out urbs in flight */
/* Input endpoints and buffers for this port */
struct urb *in_urbs[N_IN_URB];
char *in_buffer[N_IN_URB];
/* 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;
};
static int sierra_send_setup(struct tty_struct *tty,
struct usb_serial_port *port)
{
struct usb_serial *serial = port->serial;
struct sierra_port_private *portdata;
__u16 interface = 0;
dbg("%s", __func__);
portdata = usb_get_serial_port_data(port);
if (tty) {
int val = 0;
if (portdata->dtr_state)
val |= 0x01;
if (portdata->rts_state)
val |= 0x02;
/* Determine which port is targeted */
if (port->bulk_out_endpointAddress == 2)
interface = 0;
else if (port->bulk_out_endpointAddress == 4)
interface = 1;
else if (port->bulk_out_endpointAddress == 5)
interface = 2;
return usb_control_msg(serial->dev,
usb_rcvctrlpipe(serial->dev, 0),
0x22, 0x21, val, interface,
NULL, 0, USB_CTRL_SET_TIMEOUT);
}
return 0;
}
static void sierra_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios *old_termios)
{
dbg("%s", __func__);
tty_termios_copy_hw(tty->termios, old_termios);
sierra_send_setup(tty, port);
}
static int sierra_tiocmget(struct tty_struct *tty, struct file *file)
{
struct usb_serial_port *port = tty->driver_data;
unsigned int value;
struct sierra_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 sierra_tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear)
{
struct usb_serial_port *port = tty->driver_data;
struct sierra_port_private *portdata;
portdata = usb_get_serial_port_data(port);
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 sierra_send_setup(tty, port);
}
static void sierra_outdat_callback(struct urb *urb)
{
struct usb_serial_port *port = urb->context;
struct sierra_port_private *portdata = usb_get_serial_port_data(port);
int status = urb->status;
unsigned long flags;
dbg("%s - port %d", __func__, port->number);
/* free up the transfer buffer, as usb_free_urb() does not do this */
kfree(urb->transfer_buffer);
if (status)
dbg("%s - nonzero write bulk status received: %d",
__func__, status);
spin_lock_irqsave(&portdata->lock, flags);
--portdata->outstanding_urbs;
spin_unlock_irqrestore(&portdata->lock, flags);
usb_serial_port_softint(port);
}
/* Write */
static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf, int count)
{
struct sierra_port_private *portdata = usb_get_serial_port_data(port);
struct usb_serial *serial = port->serial;
unsigned long flags;
unsigned char *buffer;
struct urb *urb;
int status;
portdata = usb_get_serial_port_data(port);
dbg("%s: write (%d chars)", __func__, count);
spin_lock_irqsave(&portdata->lock, flags);
if (portdata->outstanding_urbs > N_OUT_URB) {
spin_unlock_irqrestore(&portdata->lock, flags);
dbg("%s - write limit hit\n", __func__);
return 0;
}
portdata->outstanding_urbs++;
spin_unlock_irqrestore(&portdata->lock, flags);
buffer = kmalloc(count, GFP_ATOMIC);
if (!buffer) {
dev_err(&port->dev, "out of memory\n");
count = -ENOMEM;
goto error_no_buffer;
}
urb = usb_alloc_urb(0, GFP_ATOMIC);
if (!urb) {
dev_err(&port->dev, "no more free urbs\n");
count = -ENOMEM;
goto error_no_urb;
}
memcpy(buffer, buf, count);
usb_serial_debug_data(debug, &port->dev, __func__, count, buffer);
usb_fill_bulk_urb(urb, serial->dev,
usb_sndbulkpipe(serial->dev,
port->bulk_out_endpointAddress),
buffer, count, sierra_outdat_callback, port);
/* send it down the pipe */
status = usb_submit_urb(urb, GFP_ATOMIC);
if (status) {
dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed "
"with status = %d\n", __func__, status);
count = status;
goto error;
}
/* we are done with this urb, so let the host driver
* really free it when it is finished with it */
usb_free_urb(urb);
return count;
error:
usb_free_urb(urb);
error_no_urb:
kfree(buffer);
error_no_buffer:
spin_lock_irqsave(&portdata->lock, flags);
--portdata->outstanding_urbs;
spin_unlock_irqrestore(&portdata->lock, flags);
return count;
}
static void sierra_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 = port->port.tty;
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__);
}
/* Resubmit urb so we continue receiving */
if (port->port.count && status != -ESHUTDOWN) {
err = usb_submit_urb(urb, GFP_ATOMIC);
if (err)
dev_err(&port->dev, "resubmit read urb failed."
"(%d)\n", err);
}
}
return;
}
static void sierra_instat_callback(struct urb *urb)
{
int err;
int status = urb->status;
struct usb_serial_port *port = urb->context;
struct sierra_port_private *portdata = usb_get_serial_port_data(port);
struct usb_serial *serial = port->serial;
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 (port->port.tty && !C_CLOCAL(port->port.tty) &&
old_dcd_state && !portdata->dcd_state)
tty_hangup(port->port.tty);
} else {
dbg("%s: type %x req %x", __func__,
req_pkt->bRequestType, req_pkt->bRequest);
}
} else
dbg("%s: error %d", __func__, status);
/* Resubmit urb so we continue receiving IRQ data */
if (status != -ESHUTDOWN) {
urb->dev = serial->dev;
err = usb_submit_urb(urb, GFP_ATOMIC);
if (err)
dbg("%s: resubmit intr urb failed. (%d)",
__func__, err);
}
}
static int sierra_write_room(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct sierra_port_private *portdata = usb_get_serial_port_data(port);
unsigned long flags;
dbg("%s - port %d", __func__, port->number);
/* try to give a good number back based on if we have any free urbs at
* this point in time */
spin_lock_irqsave(&portdata->lock, flags);
if (portdata->outstanding_urbs > N_OUT_URB * 2 / 3) {
spin_unlock_irqrestore(&portdata->lock, flags);
dbg("%s - write limit hit\n", __func__);
return 0;
}
spin_unlock_irqrestore(&portdata->lock, flags);
return 2048;
}
static int sierra_open(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp)
{
struct sierra_port_private *portdata;
struct usb_serial *serial = port->serial;
int i;
struct urb *urb;
int result;
portdata = usb_get_serial_port_data(port);
dbg("%s", __func__);
/* Set some sane defaults */
portdata->rts_state = 1;
portdata->dtr_state = 1;
/* Reset low level data toggle and start reading from endpoints */
for (i = 0; i < N_IN_URB; i++) {
urb = portdata->in_urbs[i];
if (!urb)
continue;
if (urb->dev != serial->dev) {
dbg("%s: dev %p != %p", __func__,
urb->dev, serial->dev);
continue;
}
/*
* make sure endpoint data toggle is synchronized with the
* device
*/
usb_clear_halt(urb->dev, urb->pipe);
result = usb_submit_urb(urb, GFP_KERNEL);
if (result) {
dev_err(&port->dev, "submit urb %d failed (%d) %d\n",
i, result, urb->transfer_buffer_length);
}
}
if (tty)
tty->low_latency = 1;
sierra_send_setup(tty, port);
/* start up the interrupt endpoint if we have one */
if (port->interrupt_in_urb) {
result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
if (result)
dev_err(&port->dev, "submit irq_in urb failed %d\n",
result);
}
return 0;
}
static void sierra_close(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp)
{
int i;
struct usb_serial *serial = port->serial;
struct sierra_port_private *portdata;
dbg("%s", __func__);
portdata = usb_get_serial_port_data(port);
portdata->rts_state = 0;
portdata->dtr_state = 0;
if (serial->dev) {
mutex_lock(&serial->disc_mutex);
if (!serial->disconnected)
sierra_send_setup(tty, port);
mutex_unlock(&serial->disc_mutex);
/* Stop reading/writing urbs */
for (i = 0; i < N_IN_URB; i++)
usb_kill_urb(portdata->in_urbs[i]);
}
usb_kill_urb(port->interrupt_in_urb);
port->port.tty = NULL; /* FIXME */
}
static int sierra_startup(struct usb_serial *serial)
{
struct usb_serial_port *port;
struct sierra_port_private *portdata;
struct urb *urb;
int i;
int j;
dbg("%s", __func__);
/* Set Device mode to D0 */
sierra_set_power_state(serial->dev, 0x0000);
/* Check NMEA and set */
if (nmea)
sierra_vsc_set_nmea(serial->dev, 1);
/* 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 sierra_port_private (%d) failed!.",
__func__, i);
return -ENOMEM;
}
spin_lock_init(&portdata->lock);
for (j = 0; j < N_IN_URB; j++) {
portdata->in_buffer[j] = kmalloc(IN_BUFLEN, GFP_KERNEL);
if (!portdata->in_buffer[j]) {
for (--j; j >= 0; j--)
kfree(portdata->in_buffer[j]);
kfree(portdata);
return -ENOMEM;
}
}
usb_set_serial_port_data(port, portdata);
/* initialize the in urbs */
for (j = 0; j < N_IN_URB; ++j) {
urb = usb_alloc_urb(0, GFP_KERNEL);
if (urb == NULL) {
dbg("%s: alloc for in port failed.",
__func__);
continue;
}
/* Fill URB using supplied data. */
usb_fill_bulk_urb(urb, serial->dev,
usb_rcvbulkpipe(serial->dev,
port->bulk_in_endpointAddress),
portdata->in_buffer[j], IN_BUFLEN,
sierra_indat_callback, port);
portdata->in_urbs[j] = urb;
}
}
return 0;
}
static void sierra_shutdown(struct usb_serial *serial)
{
int i, j;
struct usb_serial_port *port;
struct sierra_port_private *portdata;
dbg("%s", __func__);
for (i = 0; i < serial->num_ports; ++i) {
port = serial->port[i];
if (!port)
continue;
portdata = usb_get_serial_port_data(port);
if (!portdata)
continue;
for (j = 0; j < N_IN_URB; j++) {
usb_kill_urb(portdata->in_urbs[j]);
usb_free_urb(portdata->in_urbs[j]);
kfree(portdata->in_buffer[j]);
}
kfree(portdata);
usb_set_serial_port_data(port, NULL);
}
}
static struct usb_serial_driver sierra_device = {
.driver = {
.owner = THIS_MODULE,
.name = "sierra1",
},
.description = "Sierra USB modem",
.id_table = id_table,
.usb_driver = &sierra_driver,
.calc_num_ports = sierra_calc_num_ports,
.probe = sierra_probe,
.open = sierra_open,
.close = sierra_close,
.write = sierra_write,
.write_room = sierra_write_room,
.set_termios = sierra_set_termios,
.tiocmget = sierra_tiocmget,
.tiocmset = sierra_tiocmset,
.attach = sierra_startup,
.shutdown = sierra_shutdown,
.read_int_callback = sierra_instat_callback,
};
/* Functions used by new usb-serial code. */
static int __init sierra_init(void)
{
int retval;
retval = usb_serial_register(&sierra_device);
if (retval)
goto failed_device_register;
retval = usb_register(&sierra_driver);
if (retval)
goto failed_driver_register;
info(DRIVER_DESC ": " DRIVER_VERSION);
return 0;
failed_driver_register:
usb_serial_deregister(&sierra_device);
failed_device_register:
return retval;
}
static void __exit sierra_exit(void)
{
usb_deregister (&sierra_driver);
usb_serial_deregister(&sierra_device);
}
module_init(sierra_init);
module_exit(sierra_exit);
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_VERSION(DRIVER_VERSION);
MODULE_LICENSE("GPL");
module_param(truinstall, bool, 0);
MODULE_PARM_DESC(truinstall, "TRU-Install support");
module_param(nmea, bool, 0);
MODULE_PARM_DESC(nmea, "NMEA streaming");
#ifdef CONFIG_USB_DEBUG
module_param(debug, bool, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug, "Debug messages");
#endif
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