linux/drivers/usb/serial/qcserial.c
<<
>>
Prefs 
   1/*
   2 * Qualcomm Serial USB driver
   3 *
   4 *      Copyright (c) 2008 QUALCOMM Incorporated.
   5 *      Copyright (c) 2009 Greg Kroah-Hartman <gregkh@suse.de>
   6 *      Copyright (c) 2009 Novell Inc.
   7 *
   8 *      This program is free software; you can redistribute it and/or
   9 *      modify it under the terms of the GNU General Public License version
  10 *      2 as published by the Free Software Foundation.
  11 *
  12 */
  13
  14#include <linux/tty.h>
  15#include <linux/tty_flip.h>
  16#include <linux/module.h>
  17#include <linux/usb.h>
  18#include <linux/usb/serial.h>
  19#include <linux/slab.h>
  20#include "usb-wwan.h"
  21
  22#define DRIVER_AUTHOR "Qualcomm Inc"
  23#define DRIVER_DESC "Qualcomm USB Serial driver"
  24
  25#define DEVICE_G1K(v, p) \
  26        USB_DEVICE(v, p), .driver_info = 1
  27
  28static const struct usb_device_id id_table[] = {
  29        /* Gobi 1000 devices */
  30        {DEVICE_G1K(0x05c6, 0x9211)},   /* Acer Gobi QDL device */
  31        {DEVICE_G1K(0x05c6, 0x9212)},   /* Acer Gobi Modem Device */
  32        {DEVICE_G1K(0x03f0, 0x1f1d)},   /* HP un2400 Gobi Modem Device */
  33        {DEVICE_G1K(0x03f0, 0x201d)},   /* HP un2400 Gobi QDL Device */
  34        {DEVICE_G1K(0x04da, 0x250d)},   /* Panasonic Gobi Modem device */
  35        {DEVICE_G1K(0x04da, 0x250c)},   /* Panasonic Gobi QDL device */
  36        {DEVICE_G1K(0x413c, 0x8172)},   /* Dell Gobi Modem device */
  37        {DEVICE_G1K(0x413c, 0x8171)},   /* Dell Gobi QDL device */
  38        {DEVICE_G1K(0x1410, 0xa001)},   /* Novatel Gobi Modem device */
  39        {DEVICE_G1K(0x1410, 0xa008)},   /* Novatel Gobi QDL device */
  40        {DEVICE_G1K(0x0b05, 0x1776)},   /* Asus Gobi Modem device */
  41        {DEVICE_G1K(0x0b05, 0x1774)},   /* Asus Gobi QDL device */
  42        {DEVICE_G1K(0x19d2, 0xfff3)},   /* ONDA Gobi Modem device */
  43        {DEVICE_G1K(0x19d2, 0xfff2)},   /* ONDA Gobi QDL device */
  44        {DEVICE_G1K(0x1557, 0x0a80)},   /* OQO Gobi QDL device */
  45        {DEVICE_G1K(0x05c6, 0x9001)},   /* Generic Gobi Modem device */
  46        {DEVICE_G1K(0x05c6, 0x9002)},   /* Generic Gobi Modem device */
  47        {DEVICE_G1K(0x05c6, 0x9202)},   /* Generic Gobi Modem device */
  48        {DEVICE_G1K(0x05c6, 0x9203)},   /* Generic Gobi Modem device */
  49        {DEVICE_G1K(0x05c6, 0x9222)},   /* Generic Gobi Modem device */
  50        {DEVICE_G1K(0x05c6, 0x9008)},   /* Generic Gobi QDL device */
  51        {DEVICE_G1K(0x05c6, 0x9009)},   /* Generic Gobi Modem device */
  52        {DEVICE_G1K(0x05c6, 0x9201)},   /* Generic Gobi QDL device */
  53        {DEVICE_G1K(0x05c6, 0x9221)},   /* Generic Gobi QDL device */
  54        {DEVICE_G1K(0x05c6, 0x9231)},   /* Generic Gobi QDL device */
  55        {DEVICE_G1K(0x1f45, 0x0001)},   /* Unknown Gobi QDL device */
  56        {DEVICE_G1K(0x1bc7, 0x900e)},   /* Telit Gobi QDL device */
  57
  58        /* Gobi 2000 devices */
  59        {USB_DEVICE(0x1410, 0xa010)},   /* Novatel Gobi 2000 QDL device */
  60        {USB_DEVICE(0x1410, 0xa011)},   /* Novatel Gobi 2000 QDL device */
  61        {USB_DEVICE(0x1410, 0xa012)},   /* Novatel Gobi 2000 QDL device */
  62        {USB_DEVICE(0x1410, 0xa013)},   /* Novatel Gobi 2000 QDL device */
  63        {USB_DEVICE(0x1410, 0xa014)},   /* Novatel Gobi 2000 QDL device */
  64        {USB_DEVICE(0x413c, 0x8185)},   /* Dell Gobi 2000 QDL device (N0218, VU936) */
  65        {USB_DEVICE(0x413c, 0x8186)},   /* Dell Gobi 2000 Modem device (N0218, VU936) */
  66        {USB_DEVICE(0x05c6, 0x9208)},   /* Generic Gobi 2000 QDL device */
  67        {USB_DEVICE(0x05c6, 0x920b)},   /* Generic Gobi 2000 Modem device */
  68        {USB_DEVICE(0x05c6, 0x9224)},   /* Sony Gobi 2000 QDL device (N0279, VU730) */
  69        {USB_DEVICE(0x05c6, 0x9225)},   /* Sony Gobi 2000 Modem device (N0279, VU730) */
  70        {USB_DEVICE(0x05c6, 0x9244)},   /* Samsung Gobi 2000 QDL device (VL176) */
  71        {USB_DEVICE(0x05c6, 0x9245)},   /* Samsung Gobi 2000 Modem device (VL176) */
  72        {USB_DEVICE(0x03f0, 0x241d)},   /* HP Gobi 2000 QDL device (VP412) */
  73        {USB_DEVICE(0x03f0, 0x251d)},   /* HP Gobi 2000 Modem device (VP412) */
  74        {USB_DEVICE(0x05c6, 0x9214)},   /* Acer Gobi 2000 QDL device (VP413) */
  75        {USB_DEVICE(0x05c6, 0x9215)},   /* Acer Gobi 2000 Modem device (VP413) */
  76        {USB_DEVICE(0x05c6, 0x9264)},   /* Asus Gobi 2000 QDL device (VR305) */
  77        {USB_DEVICE(0x05c6, 0x9265)},   /* Asus Gobi 2000 Modem device (VR305) */
  78        {USB_DEVICE(0x05c6, 0x9234)},   /* Top Global Gobi 2000 QDL device (VR306) */
  79        {USB_DEVICE(0x05c6, 0x9235)},   /* Top Global Gobi 2000 Modem device (VR306) */
  80        {USB_DEVICE(0x05c6, 0x9274)},   /* iRex Technologies Gobi 2000 QDL device (VR307) */
  81        {USB_DEVICE(0x05c6, 0x9275)},   /* iRex Technologies Gobi 2000 Modem device (VR307) */
  82        {USB_DEVICE(0x1199, 0x9000)},   /* Sierra Wireless Gobi 2000 QDL device (VT773) */
  83        {USB_DEVICE(0x1199, 0x9001)},   /* Sierra Wireless Gobi 2000 Modem device (VT773) */
  84        {USB_DEVICE(0x1199, 0x9002)},   /* Sierra Wireless Gobi 2000 Modem device (VT773) */
  85        {USB_DEVICE(0x1199, 0x9003)},   /* Sierra Wireless Gobi 2000 Modem device (VT773) */
  86        {USB_DEVICE(0x1199, 0x9004)},   /* Sierra Wireless Gobi 2000 Modem device (VT773) */
  87        {USB_DEVICE(0x1199, 0x9005)},   /* Sierra Wireless Gobi 2000 Modem device (VT773) */
  88        {USB_DEVICE(0x1199, 0x9006)},   /* Sierra Wireless Gobi 2000 Modem device (VT773) */
  89        {USB_DEVICE(0x1199, 0x9007)},   /* Sierra Wireless Gobi 2000 Modem device (VT773) */
  90        {USB_DEVICE(0x1199, 0x9008)},   /* Sierra Wireless Gobi 2000 Modem device (VT773) */
  91        {USB_DEVICE(0x1199, 0x9009)},   /* Sierra Wireless Gobi 2000 Modem device (VT773) */
  92        {USB_DEVICE(0x1199, 0x900a)},   /* Sierra Wireless Gobi 2000 Modem device (VT773) */
  93        {USB_DEVICE(0x1199, 0x9011)},   /* Sierra Wireless Gobi 2000 Modem device (MC8305) */
  94        {USB_DEVICE(0x16d8, 0x8001)},   /* CMDTech Gobi 2000 QDL device (VU922) */
  95        {USB_DEVICE(0x16d8, 0x8002)},   /* CMDTech Gobi 2000 Modem device (VU922) */
  96        {USB_DEVICE(0x05c6, 0x9204)},   /* Gobi 2000 QDL device */
  97        {USB_DEVICE(0x05c6, 0x9205)},   /* Gobi 2000 Modem device */
  98
  99        /* Gobi 3000 devices */
 100        {USB_DEVICE(0x03f0, 0x371d)},   /* HP un2430 Gobi 3000 QDL */
 101        {USB_DEVICE(0x05c6, 0x920c)},   /* Gobi 3000 QDL */
 102        {USB_DEVICE(0x05c6, 0x920d)},   /* Gobi 3000 Composite */
 103        {USB_DEVICE(0x1410, 0xa020)},   /* Novatel Gobi 3000 QDL */
 104        {USB_DEVICE(0x1410, 0xa021)},   /* Novatel Gobi 3000 Composite */
 105        {USB_DEVICE(0x413c, 0x8193)},   /* Dell Gobi 3000 QDL */
 106        {USB_DEVICE(0x413c, 0x8194)},   /* Dell Gobi 3000 Composite */
 107        {USB_DEVICE(0x1199, 0x68a4)},   /* Sierra Wireless QDL */
 108        {USB_DEVICE(0x1199, 0x68a5)},   /* Sierra Wireless Modem */
 109        {USB_DEVICE(0x1199, 0x68a8)},   /* Sierra Wireless QDL */
 110        {USB_DEVICE(0x1199, 0x68a9)},   /* Sierra Wireless Modem */
 111        {USB_DEVICE(0x1199, 0x9010)},   /* Sierra Wireless Gobi 3000 QDL */
 112        {USB_DEVICE(0x1199, 0x9012)},   /* Sierra Wireless Gobi 3000 QDL */
 113        {USB_DEVICE(0x1199, 0x9013)},   /* Sierra Wireless Gobi 3000 Modem device (MC8355) */
 114        {USB_DEVICE(0x1199, 0x9014)},   /* Sierra Wireless Gobi 3000 QDL */
 115        {USB_DEVICE(0x1199, 0x9015)},   /* Sierra Wireless Gobi 3000 Modem device */
 116        {USB_DEVICE(0x1199, 0x9018)},   /* Sierra Wireless Gobi 3000 QDL */
 117        {USB_DEVICE(0x1199, 0x9019)},   /* Sierra Wireless Gobi 3000 Modem device */
 118        {USB_DEVICE(0x1199, 0x901b)},   /* Sierra Wireless MC7770 */
 119        {USB_DEVICE(0x12D1, 0x14F0)},   /* Sony Gobi 3000 QDL */
 120        {USB_DEVICE(0x12D1, 0x14F1)},   /* Sony Gobi 3000 Composite */
 121
 122        /* non Gobi Qualcomm serial devices */
 123        {USB_DEVICE_INTERFACE_NUMBER(0x0f3d, 0x68a2, 0)},       /* Sierra Wireless MC7700 Device Management */
 124        {USB_DEVICE_INTERFACE_NUMBER(0x0f3d, 0x68a2, 2)},       /* Sierra Wireless MC7700 NMEA */
 125        {USB_DEVICE_INTERFACE_NUMBER(0x0f3d, 0x68a2, 3)},       /* Sierra Wireless MC7700 Modem */
 126        {USB_DEVICE_INTERFACE_NUMBER(0x114f, 0x68a2, 0)},       /* Sierra Wireless MC7750 Device Management */
 127        {USB_DEVICE_INTERFACE_NUMBER(0x114f, 0x68a2, 2)},       /* Sierra Wireless MC7750 NMEA */
 128        {USB_DEVICE_INTERFACE_NUMBER(0x114f, 0x68a2, 3)},       /* Sierra Wireless MC7750 Modem */
 129        {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x68a2, 0)},       /* Sierra Wireless MC7710 Device Management */
 130        {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x68a2, 2)},       /* Sierra Wireless MC7710 NMEA */
 131        {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x68a2, 3)},       /* Sierra Wireless MC7710 Modem */
 132        {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901c, 0)},       /* Sierra Wireless EM7700 Device Management */
 133        {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901c, 2)},       /* Sierra Wireless EM7700 NMEA */
 134        {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901c, 3)},       /* Sierra Wireless EM7700 Modem */
 135
 136        { }                             /* Terminating entry */
 137};
 138MODULE_DEVICE_TABLE(usb, id_table);
 139
 140static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
 141{
 142        struct usb_host_interface *intf = serial->interface->cur_altsetting;
 143        struct device *dev = &serial->dev->dev;
 144        int retval = -ENODEV;
 145        __u8 nintf;
 146        __u8 ifnum;
 147        bool is_gobi1k = id->driver_info ? true : false;
 148        int altsetting = -1;
 149
 150        dev_dbg(dev, "Is Gobi 1000 = %d\n", is_gobi1k);
 151
 152        nintf = serial->dev->actconfig->desc.bNumInterfaces;
 153        dev_dbg(dev, "Num Interfaces = %d\n", nintf);
 154        ifnum = intf->desc.bInterfaceNumber;
 155        dev_dbg(dev, "This Interface = %d\n", ifnum);
 156
 157        if (nintf == 1) {
 158                /* QDL mode */
 159                /* Gobi 2000 has a single altsetting, older ones have two */
 160                if (serial->interface->num_altsetting == 2)
 161                        intf = &serial->interface->altsetting[1];
 162                else if (serial->interface->num_altsetting > 2)
 163                        goto done;
 164
 165                if (intf->desc.bNumEndpoints == 2 &&
 166                    usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) &&
 167                    usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) {
 168                        dev_dbg(dev, "QDL port found\n");
 169
 170                        if (serial->interface->num_altsetting == 1)
 171                                retval = 0; /* Success */
 172                        else
 173                                altsetting = 1;
 174                }
 175                goto done;
 176
 177        }
 178
 179        /* allow any number of interfaces when doing direct interface match */
 180        if (id->match_flags & USB_DEVICE_ID_MATCH_INT_NUMBER) {
 181                dev_dbg(dev, "Generic Qualcomm serial interface found\n");
 182                altsetting = 0;
 183                goto done;
 184        }
 185
 186        if (nintf < 3 || nintf > 4) {
 187                dev_err(dev, "unknown number of interfaces: %d\n", nintf);
 188                goto done;
 189        }
 190
 191        /* default to enabling interface */
 192        altsetting = 0;
 193
 194        /* Composite mode; don't bind to the QMI/net interface as that
 195         * gets handled by other drivers.
 196         */
 197
 198        if (is_gobi1k) {
 199                /* Gobi 1K USB layout:
 200                 * 0: DM/DIAG (use libqcdm from ModemManager for communication)
 201                 * 1: serial port (doesn't respond)
 202                 * 2: AT-capable modem port
 203                 * 3: QMI/net
 204                 */
 205                if (ifnum == 0) {
 206                        dev_dbg(dev, "Gobi 1K DM/DIAG interface found\n");
 207                        altsetting = 1;
 208                } else if (ifnum == 2)
 209                        dev_dbg(dev, "Modem port found\n");
 210                else
 211                        altsetting = -1;
 212        } else {
 213                /* Gobi 2K+ USB layout:
 214                 * 0: QMI/net
 215                 * 1: DM/DIAG (use libqcdm from ModemManager for communication)
 216                 * 2: AT-capable modem port
 217                 * 3: NMEA
 218                 */
 219                switch (ifnum) {
 220                case 0:
 221                        /* Don't claim the QMI/net interface */
 222                        altsetting = -1;
 223                        break;
 224                case 1:
 225                        dev_dbg(dev, "Gobi 2K+ DM/DIAG interface found\n");
 226                        break;
 227                case 2:
 228                        dev_dbg(dev, "Modem port found\n");
 229                        break;
 230                case 3:
 231                        /*
 232                         * NMEA (serial line 9600 8N1)
 233                         * # echo "\$GPS_START" > /dev/ttyUSBx
 234                         * # echo "\$GPS_STOP"  > /dev/ttyUSBx
 235                         */
 236                        dev_dbg(dev, "Gobi 2K+ NMEA GPS interface found\n");
 237                        break;
 238                }
 239        }
 240
 241done:
 242        if (altsetting >= 0) {
 243                retval = usb_set_interface(serial->dev, ifnum, altsetting);
 244                if (retval < 0) {
 245                        dev_err(dev,
 246                                "Could not set interface, error %d\n",
 247                                retval);
 248                        retval = -ENODEV;
 249                }
 250        }
 251
 252        return retval;
 253}
 254
 255static int qc_attach(struct usb_serial *serial)
 256{
 257        struct usb_wwan_intf_private *data;
 258
 259        data = kzalloc(sizeof(*data), GFP_KERNEL);
 260        if (!data)
 261                return -ENOMEM;
 262
 263        spin_lock_init(&data->susp_lock);
 264
 265        usb_set_serial_data(serial, data);
 266
 267        return 0;
 268}
 269
 270static void qc_release(struct usb_serial *serial)
 271{
 272        struct usb_wwan_intf_private *priv = usb_get_serial_data(serial);
 273
 274        usb_set_serial_data(serial, NULL);
 275        kfree(priv);
 276}
 277
 278static struct usb_serial_driver qcdevice = {
 279        .driver = {
 280                .owner     = THIS_MODULE,
 281                .name      = "qcserial",
 282        },
 283        .description         = "Qualcomm USB modem",
 284        .id_table            = id_table,
 285        .num_ports           = 1,
 286        .probe               = qcprobe,
 287        .open                = usb_wwan_open,
 288        .close               = usb_wwan_close,
 289        .write               = usb_wwan_write,
 290        .write_room          = usb_wwan_write_room,
 291        .chars_in_buffer     = usb_wwan_chars_in_buffer,
 292        .attach              = qc_attach,
 293        .release             = qc_release,
 294        .port_probe          = usb_wwan_port_probe,
 295        .port_remove         = usb_wwan_port_remove,
 296#ifdef CONFIG_PM
 297        .suspend             = usb_wwan_suspend,
 298        .resume              = usb_wwan_resume,
 299#endif
 300};
 301
 302static struct usb_serial_driver * const serial_drivers[] = {
 303        &qcdevice, NULL
 304};
 305
 306module_usb_serial_driver(serial_drivers, id_table);
 307
 308MODULE_AUTHOR(DRIVER_AUTHOR);
 309MODULE_DESCRIPTION(DRIVER_DESC);
 310MODULE_LICENSE("GPL v2");
 311
The original LXR software by the LXR community, this experimental version by lxr@linux.no.
lxr.linux.no kindly hosted by Redpill Linpro AS, provider of Linux consulting and operations services since 1995.