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linux/drivers/usb/serial/qcserial.c
Greg Kroah-Hartman 3da3bf76cb USB: serial: qcserial.c: remove debug module parameter 
Now that the dbg() macro is no longer being used in the driver,
the debug module parameter doesn't do anything at all.  So remove
it so as to not confuse people.

CC: "Bjørn Mork" <bjorn@mork.no>
CC: Dan Williams <dcbw@redhat.com>
CC: Thomas Tuttle <ttuttle@chromium.org>
CC: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-14 12:31:47 -07:00

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/*
* Qualcomm Serial USB driver
*
* Copyright (c) 2008 QUALCOMM Incorporated.
* Copyright (c) 2009 Greg Kroah-Hartman <gregkh@suse.de>
* Copyright (c) 2009 Novell Inc.
*
* 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/tty.h>
#include <linux/tty_flip.h>
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
#include <linux/slab.h>
#include "usb-wwan.h"
#define DRIVER_AUTHOR "Qualcomm Inc"
#define DRIVER_DESC "Qualcomm USB Serial driver"
#define DEVICE_G1K(v, p) \
USB_DEVICE(v, p), .driver_info = 1
static const struct usb_device_id id_table[] = {
/* Gobi 1000 devices */
{DEVICE_G1K(0x05c6, 0x9211)}, /* Acer Gobi QDL device */
{DEVICE_G1K(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */
{DEVICE_G1K(0x03f0, 0x1f1d)}, /* HP un2400 Gobi Modem Device */
{DEVICE_G1K(0x03f0, 0x201d)}, /* HP un2400 Gobi QDL Device */
{DEVICE_G1K(0x04da, 0x250d)}, /* Panasonic Gobi Modem device */
{DEVICE_G1K(0x04da, 0x250c)}, /* Panasonic Gobi QDL device */
{DEVICE_G1K(0x413c, 0x8172)}, /* Dell Gobi Modem device */
{DEVICE_G1K(0x413c, 0x8171)}, /* Dell Gobi QDL device */
{DEVICE_G1K(0x1410, 0xa001)}, /* Novatel Gobi Modem device */
{DEVICE_G1K(0x1410, 0xa008)}, /* Novatel Gobi QDL device */
{DEVICE_G1K(0x0b05, 0x1776)}, /* Asus Gobi Modem device */
{DEVICE_G1K(0x0b05, 0x1774)}, /* Asus Gobi QDL device */
{DEVICE_G1K(0x19d2, 0xfff3)}, /* ONDA Gobi Modem device */
{DEVICE_G1K(0x19d2, 0xfff2)}, /* ONDA Gobi QDL device */
{DEVICE_G1K(0x1557, 0x0a80)}, /* OQO Gobi QDL device */
{DEVICE_G1K(0x05c6, 0x9001)}, /* Generic Gobi Modem device */
{DEVICE_G1K(0x05c6, 0x9002)}, /* Generic Gobi Modem device */
{DEVICE_G1K(0x05c6, 0x9202)}, /* Generic Gobi Modem device */
{DEVICE_G1K(0x05c6, 0x9203)}, /* Generic Gobi Modem device */
{DEVICE_G1K(0x05c6, 0x9222)}, /* Generic Gobi Modem device */
{DEVICE_G1K(0x05c6, 0x9008)}, /* Generic Gobi QDL device */
{DEVICE_G1K(0x05c6, 0x9009)}, /* Generic Gobi Modem device */
{DEVICE_G1K(0x05c6, 0x9201)}, /* Generic Gobi QDL device */
{DEVICE_G1K(0x05c6, 0x9221)}, /* Generic Gobi QDL device */
{DEVICE_G1K(0x05c6, 0x9231)}, /* Generic Gobi QDL device */
{DEVICE_G1K(0x1f45, 0x0001)}, /* Unknown Gobi QDL device */
/* Gobi 2000 devices */
{USB_DEVICE(0x1410, 0xa010)}, /* Novatel Gobi 2000 QDL device */
{USB_DEVICE(0x1410, 0xa011)}, /* Novatel Gobi 2000 QDL device */
{USB_DEVICE(0x1410, 0xa012)}, /* Novatel Gobi 2000 QDL device */
{USB_DEVICE(0x1410, 0xa013)}, /* Novatel Gobi 2000 QDL device */
{USB_DEVICE(0x1410, 0xa014)}, /* Novatel Gobi 2000 QDL device */
{USB_DEVICE(0x413c, 0x8185)}, /* Dell Gobi 2000 QDL device (N0218, VU936) */
{USB_DEVICE(0x413c, 0x8186)}, /* Dell Gobi 2000 Modem device (N0218, VU936) */
{USB_DEVICE(0x05c6, 0x9208)}, /* Generic Gobi 2000 QDL device */
{USB_DEVICE(0x05c6, 0x920b)}, /* Generic Gobi 2000 Modem device */
{USB_DEVICE(0x05c6, 0x9224)}, /* Sony Gobi 2000 QDL device (N0279, VU730) */
{USB_DEVICE(0x05c6, 0x9225)}, /* Sony Gobi 2000 Modem device (N0279, VU730) */
{USB_DEVICE(0x05c6, 0x9244)}, /* Samsung Gobi 2000 QDL device (VL176) */
{USB_DEVICE(0x05c6, 0x9245)}, /* Samsung Gobi 2000 Modem device (VL176) */
{USB_DEVICE(0x03f0, 0x241d)}, /* HP Gobi 2000 QDL device (VP412) */
{USB_DEVICE(0x03f0, 0x251d)}, /* HP Gobi 2000 Modem device (VP412) */
{USB_DEVICE(0x05c6, 0x9214)}, /* Acer Gobi 2000 QDL device (VP413) */
{USB_DEVICE(0x05c6, 0x9215)}, /* Acer Gobi 2000 Modem device (VP413) */
{USB_DEVICE(0x05c6, 0x9264)}, /* Asus Gobi 2000 QDL device (VR305) */
{USB_DEVICE(0x05c6, 0x9265)}, /* Asus Gobi 2000 Modem device (VR305) */
{USB_DEVICE(0x05c6, 0x9234)}, /* Top Global Gobi 2000 QDL device (VR306) */
{USB_DEVICE(0x05c6, 0x9235)}, /* Top Global Gobi 2000 Modem device (VR306) */
{USB_DEVICE(0x05c6, 0x9274)}, /* iRex Technologies Gobi 2000 QDL device (VR307) */
{USB_DEVICE(0x05c6, 0x9275)}, /* iRex Technologies Gobi 2000 Modem device (VR307) */
{USB_DEVICE(0x1199, 0x9000)}, /* Sierra Wireless Gobi 2000 QDL device (VT773) */
{USB_DEVICE(0x1199, 0x9001)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
{USB_DEVICE(0x1199, 0x9002)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
{USB_DEVICE(0x1199, 0x9003)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
{USB_DEVICE(0x1199, 0x9004)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
{USB_DEVICE(0x1199, 0x9005)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
{USB_DEVICE(0x1199, 0x9006)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
{USB_DEVICE(0x1199, 0x9007)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
{USB_DEVICE(0x1199, 0x9008)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
{USB_DEVICE(0x1199, 0x9009)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
{USB_DEVICE(0x1199, 0x900a)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
{USB_DEVICE(0x1199, 0x9011)}, /* Sierra Wireless Gobi 2000 Modem device (MC8305) */
{USB_DEVICE(0x16d8, 0x8001)}, /* CMDTech Gobi 2000 QDL device (VU922) */
{USB_DEVICE(0x16d8, 0x8002)}, /* CMDTech Gobi 2000 Modem device (VU922) */
{USB_DEVICE(0x05c6, 0x9204)}, /* Gobi 2000 QDL device */
{USB_DEVICE(0x05c6, 0x9205)}, /* Gobi 2000 Modem device */
/* Gobi 3000 devices */
{USB_DEVICE(0x03f0, 0x371d)}, /* HP un2430 Gobi 3000 QDL */
{USB_DEVICE(0x05c6, 0x920c)}, /* Gobi 3000 QDL */
{USB_DEVICE(0x05c6, 0x920d)}, /* Gobi 3000 Composite */
{USB_DEVICE(0x1410, 0xa020)}, /* Novatel Gobi 3000 QDL */
{USB_DEVICE(0x1410, 0xa021)}, /* Novatel Gobi 3000 Composite */
{USB_DEVICE(0x413c, 0x8193)}, /* Dell Gobi 3000 QDL */
{USB_DEVICE(0x413c, 0x8194)}, /* Dell Gobi 3000 Composite */
{USB_DEVICE(0x1199, 0x68a4)}, /* Sierra Wireless QDL */
{USB_DEVICE(0x1199, 0x68a5)}, /* Sierra Wireless Modem */
{USB_DEVICE(0x1199, 0x68a8)}, /* Sierra Wireless QDL */
{USB_DEVICE(0x1199, 0x68a9)}, /* Sierra Wireless Modem */
{USB_DEVICE(0x1199, 0x9010)}, /* Sierra Wireless Gobi 3000 QDL */
{USB_DEVICE(0x1199, 0x9012)}, /* Sierra Wireless Gobi 3000 QDL */
{USB_DEVICE(0x1199, 0x9013)}, /* Sierra Wireless Gobi 3000 Modem device (MC8355) */
{USB_DEVICE(0x1199, 0x9014)}, /* Sierra Wireless Gobi 3000 QDL */
{USB_DEVICE(0x1199, 0x9015)}, /* Sierra Wireless Gobi 3000 Modem device */
{USB_DEVICE(0x1199, 0x9018)}, /* Sierra Wireless Gobi 3000 QDL */
{USB_DEVICE(0x1199, 0x9019)}, /* Sierra Wireless Gobi 3000 Modem device */
{USB_DEVICE(0x1199, 0x901b)}, /* Sierra Wireless MC7770 */
{USB_DEVICE(0x12D1, 0x14F0)}, /* Sony Gobi 3000 QDL */
{USB_DEVICE(0x12D1, 0x14F1)}, /* Sony Gobi 3000 Composite */
/* non Gobi Qualcomm serial devices */
{USB_DEVICE_INTERFACE_NUMBER(0x0f3d, 0x68a2, 0)}, /* Sierra Wireless MC7700 Device Management */
{USB_DEVICE_INTERFACE_NUMBER(0x0f3d, 0x68a2, 2)}, /* Sierra Wireless MC7700 NMEA */
{USB_DEVICE_INTERFACE_NUMBER(0x0f3d, 0x68a2, 3)}, /* Sierra Wireless MC7700 Modem */
{USB_DEVICE_INTERFACE_NUMBER(0x114f, 0x68a2, 0)}, /* Sierra Wireless MC7750 Device Management */
{USB_DEVICE_INTERFACE_NUMBER(0x114f, 0x68a2, 2)}, /* Sierra Wireless MC7750 NMEA */
{USB_DEVICE_INTERFACE_NUMBER(0x114f, 0x68a2, 3)}, /* Sierra Wireless MC7750 Modem */
{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x68a2, 0)}, /* Sierra Wireless MC7710 Device Management */
{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x68a2, 2)}, /* Sierra Wireless MC7710 NMEA */
{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x68a2, 3)}, /* Sierra Wireless MC7710 Modem */
{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901c, 0)}, /* Sierra Wireless EM7700 Device Management */
{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901c, 2)}, /* Sierra Wireless EM7700 NMEA */
{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901c, 3)}, /* Sierra Wireless EM7700 Modem */
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, id_table);
static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
{
struct usb_wwan_intf_private *data;
struct usb_host_interface *intf = serial->interface->cur_altsetting;
struct device *dev = &serial->dev->dev;
int retval = -ENODEV;
__u8 nintf;
__u8 ifnum;
bool is_gobi1k = id->driver_info ? true : false;
int altsetting = -1;
dev_dbg(dev, "Is Gobi 1000 = %d\n", is_gobi1k);
nintf = serial->dev->actconfig->desc.bNumInterfaces;
dev_dbg(dev, "Num Interfaces = %d\n", nintf);
ifnum = intf->desc.bInterfaceNumber;
dev_dbg(dev, "This Interface = %d\n", ifnum);
data = kzalloc(sizeof(struct usb_wwan_intf_private),
GFP_KERNEL);
if (!data)
return -ENOMEM;
spin_lock_init(&data->susp_lock);
if (nintf == 1) {
/* QDL mode */
/* Gobi 2000 has a single altsetting, older ones have two */
if (serial->interface->num_altsetting == 2)
intf = &serial->interface->altsetting[1];
else if (serial->interface->num_altsetting > 2)
goto done;
if (intf->desc.bNumEndpoints == 2 &&
usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) &&
usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) {
dev_dbg(dev, "QDL port found\n");
if (serial->interface->num_altsetting == 1)
retval = 0; /* Success */
else
altsetting = 1;
}
goto done;
}
/* allow any number of interfaces when doing direct interface match */
if (id->match_flags & USB_DEVICE_ID_MATCH_INT_NUMBER) {
dev_dbg(dev, "Generic Qualcomm serial interface found\n");
altsetting = 0;
goto done;
}
if (nintf < 3 || nintf > 4) {
dev_err(dev, "unknown number of interfaces: %d\n", nintf);
goto done;
}
/* default to enabling interface */
altsetting = 0;
/* Composite mode; don't bind to the QMI/net interface as that
* gets handled by other drivers.
*/
if (is_gobi1k) {
/* Gobi 1K USB layout:
* 0: serial port (doesn't respond)
* 1: serial port (doesn't respond)
* 2: AT-capable modem port
* 3: QMI/net
*/
if (ifnum == 2)
dev_dbg(dev, "Modem port found\n");
else
altsetting = -1;
} else {
/* Gobi 2K+ USB layout:
* 0: QMI/net
* 1: DM/DIAG (use libqcdm from ModemManager for communication)
* 2: AT-capable modem port
* 3: NMEA
*/
switch (ifnum) {
case 0:
/* Don't claim the QMI/net interface */
altsetting = -1;
break;
case 1:
dev_dbg(dev, "Gobi 2K+ DM/DIAG interface found\n");
break;
case 2:
dev_dbg(dev, "Modem port found\n");
break;
case 3:
/*
* NMEA (serial line 9600 8N1)
* # echo "\$GPS_START" > /dev/ttyUSBx
* # echo "\$GPS_STOP" > /dev/ttyUSBx
*/
dev_dbg(dev, "Gobi 2K+ NMEA GPS interface found\n");
break;
}
}
done:
if (altsetting >= 0) {
retval = usb_set_interface(serial->dev, ifnum, altsetting);
if (retval < 0) {
dev_err(dev,
"Could not set interface, error %d\n",
retval);
retval = -ENODEV;
}
}
/* Set serial->private if not returning error */
if (retval == 0)
usb_set_serial_data(serial, data);
else
kfree(data);
return retval;
}
static void qc_release(struct usb_serial *serial)
{
struct usb_wwan_intf_private *priv = usb_get_serial_data(serial);
/* Free the private data allocated in qcprobe */
usb_set_serial_data(serial, NULL);
kfree(priv);
}
static struct usb_serial_driver qcdevice = {
.driver = {
.owner = THIS_MODULE,
.name = "qcserial",
},
.description = "Qualcomm USB modem",
.id_table = id_table,
.num_ports = 1,
.probe = qcprobe,
.open = usb_wwan_open,
.close = usb_wwan_close,
.write = usb_wwan_write,
.write_room = usb_wwan_write_room,
.chars_in_buffer = usb_wwan_chars_in_buffer,
.attach = usb_wwan_startup,
.release = qc_release,
.port_remove = usb_wwan_port_remove,
#ifdef CONFIG_PM
.suspend = usb_wwan_suspend,
.resume = usb_wwan_resume,
#endif
};
static struct usb_serial_driver * const serial_drivers[] = {
&qcdevice, NULL
};
module_usb_serial_driver(serial_drivers, id_table);
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL v2");
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