drivers/net/usb/qmi_wwan.c

   1 /*
   2  * Copyright (c) 2012  Bjørn Mork <bjorn@mork.no>
   3  *
   4  * The probing code is heavily inspired by cdc_ether, which is:
   5  * Copyright (C) 2003-2005 by David Brownell
   6  * Copyright (C) 2006 by Ole Andre Vadla Ravnas (ActiveSync)
   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
  10  * version 2 as published by the Free Software Foundation.
  11  */
  12
  13 #include <linux/module.h>
  14 #include <linux/netdevice.h>
  15 #include <linux/ethtool.h>
  16 #include <linux/mii.h>
  17 #include <linux/usb.h>
  18 #include <linux/usb/cdc.h>
  19 #include <linux/usb/usbnet.h>
  20 #include <linux/usb/cdc-wdm.h>
  21
  22 /* This driver supports wwan (3G/LTE/?) devices using a vendor
  23  * specific management protocol called Qualcomm MSM Interface (QMI) -
  24  * in addition to the more common AT commands over serial interface
  25  * management
  26  *
  27  * QMI is wrapped in CDC, using CDC encapsulated commands on the
  28  * control ("master") interface of a two-interface CDC Union
  29  * resembling standard CDC ECM.  The devices do not use the control
  30  * interface for any other CDC messages.  Most likely because the
  31  * management protocol is used in place of the standard CDC
  32  * notifications NOTIFY_NETWORK_CONNECTION and NOTIFY_SPEED_CHANGE
  33  *
  34  * Alternatively, control and data functions can be combined in a
  35  * single USB interface.
  36  *
  37  * Handling a protocol like QMI is out of the scope for any driver.
  38  * It is exported as a character device using the cdc-wdm driver as
  39  * a subdriver, enabling userspace applications ("modem managers") to
  40  * handle it.
  41  *
  42  * These devices may alternatively/additionally be configured using AT
  43  * commands on a serial interface
  44  */
  45
  46 /* driver specific data */
  47 struct qmi_wwan_state {
  48         struct usb_driver *subdriver;
  49         atomic_t pmcount;
  50         unsigned long unused;
  51         struct usb_interface *control;
  52         struct usb_interface *data;
  53 };
  54
  55 /* using a counter to merge subdriver requests with our own into a combined state */
  56 static int qmi_wwan_manage_power(struct usbnet *dev, int on)
  57 {
  58         struct qmi_wwan_state *info = (void *)&dev->data;
  59         int rv = 0;
  60
  61         dev_dbg(&dev->intf->dev, "%s() pmcount=%d, on=%d\n", __func__, atomic_read(&info->pmcount), on);
  62
  63         if ((on && atomic_add_return(1, &info->pmcount) == 1) || (!on && atomic_dec_and_test(&info->pmcount))) {
  64                 /* need autopm_get/put here to ensure the usbcore sees the new value */
  65                 rv = usb_autopm_get_interface(dev->intf);
  66                 if (rv < 0)
  67                         goto err;
  68                 dev->intf->needs_remote_wakeup = on;
  69                 usb_autopm_put_interface(dev->intf);
  70         }
  71 err:
  72         return rv;
  73 }
  74
  75 static int qmi_wwan_cdc_wdm_manage_power(struct usb_interface *intf, int on)
  76 {
  77         struct usbnet *dev = usb_get_intfdata(intf);
  78         return qmi_wwan_manage_power(dev, on);
  79 }
  80
  81 /* collect all three endpoints and register subdriver */
  82 static int qmi_wwan_register_subdriver(struct usbnet *dev)
  83 {
  84         int rv;
  85         struct usb_driver *subdriver = NULL;
  86         struct qmi_wwan_state *info = (void *)&dev->data;
  87
  88         /* collect bulk endpoints */
  89         rv = usbnet_get_endpoints(dev, info->data);
  90         if (rv < 0)
  91                 goto err;
  92
  93         /* update status endpoint if separate control interface */
  94         if (info->control != info->data)
  95                 dev->status = &info->control->cur_altsetting->endpoint[0];
  96
  97         /* require interrupt endpoint for subdriver */
  98         if (!dev->status) {
  99                 rv = -EINVAL;
 100                 goto err;
 101         }
 102
 103         /* for subdriver power management */
 104         atomic_set(&info->pmcount, 0);
 105
 106         /* register subdriver */
 107         subdriver = usb_cdc_wdm_register(info->control, &dev->status->desc, 512, &qmi_wwan_cdc_wdm_manage_power);
 108         if (IS_ERR(subdriver)) {
 109                 dev_err(&info->control->dev, "subdriver registration failed\n");
 110                 rv = PTR_ERR(subdriver);
 111                 goto err;
 112         }
 113
 114         /* prevent usbnet from using status endpoint */
 115         dev->status = NULL;
 116
 117         /* save subdriver struct for suspend/resume wrappers */
 118         info->subdriver = subdriver;
 119
 120 err:
 121         return rv;
 122 }
 123
 124 static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
 125 {
 126         int status = -1;
 127         u8 *buf = intf->cur_altsetting->extra;
 128         int len = intf->cur_altsetting->extralen;
 129         struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc;
 130         struct usb_cdc_union_desc *cdc_union = NULL;
 131         struct usb_cdc_ether_desc *cdc_ether = NULL;
 132         u32 required = 1 << USB_CDC_HEADER_TYPE | 1 << USB_CDC_UNION_TYPE;
 133         u32 found = 0;
 134         struct usb_driver *driver = driver_of(intf);
 135         struct qmi_wwan_state *info = (void *)&dev->data;
 136
 137         BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) < sizeof(struct qmi_wwan_state)));
 138
 139         /* require a single interrupt status endpoint for subdriver */
 140         if (intf->cur_altsetting->desc.bNumEndpoints != 1)
 141                 goto err;
 142
 143         while (len > 3) {
 144                 struct usb_descriptor_header *h = (void *)buf;
 145
 146                 /* ignore any misplaced descriptors */
 147                 if (h->bDescriptorType != USB_DT_CS_INTERFACE)
 148                         goto next_desc;
 149
 150                 /* buf[2] is CDC descriptor subtype */
 151                 switch (buf[2]) {
 152                 case USB_CDC_HEADER_TYPE:
 153                         if (found & 1 << USB_CDC_HEADER_TYPE) {
 154                                 dev_dbg(&intf->dev, "extra CDC header\n");
 155                                 goto err;
 156                         }
 157                         if (h->bLength != sizeof(struct usb_cdc_header_desc)) {
 158                                 dev_dbg(&intf->dev, "CDC header len %u\n", h->bLength);
 159                                 goto err;
 160                         }
 161                         break;
 162                 case USB_CDC_UNION_TYPE:
 163                         if (found & 1 << USB_CDC_UNION_TYPE) {
 164                                 dev_dbg(&intf->dev, "extra CDC union\n");
 165                                 goto err;
 166                         }
 167                         if (h->bLength != sizeof(struct usb_cdc_union_desc)) {
 168                                 dev_dbg(&intf->dev, "CDC union len %u\n", h->bLength);
 169                                 goto err;
 170                         }
 171                         cdc_union = (struct usb_cdc_union_desc *)buf;
 172                         break;
 173                 case USB_CDC_ETHERNET_TYPE:
 174                         if (found & 1 << USB_CDC_ETHERNET_TYPE) {
 175                                 dev_dbg(&intf->dev, "extra CDC ether\n");
 176                                 goto err;
 177                         }
 178                         if (h->bLength != sizeof(struct usb_cdc_ether_desc)) {
 179                                 dev_dbg(&intf->dev, "CDC ether len %u\n",  h->bLength);
 180                                 goto err;
 181                         }
 182                         cdc_ether = (struct usb_cdc_ether_desc *)buf;
 183                         break;
 184                 }
 185
 186                 /*
 187                  * Remember which CDC functional descriptors we've seen.  Works
 188                  * for all types we care about, of which USB_CDC_ETHERNET_TYPE
 189                  * (0x0f) is the highest numbered
 190                  */
 191                 if (buf[2] < 32)
 192                         found |= 1 << buf[2];
 193
 194 next_desc:
 195                 len -= h->bLength;
 196                 buf += h->bLength;
 197         }
 198
 199         /* did we find all the required ones? */
 200         if ((found & required) != required) {
 201                 dev_err(&intf->dev, "CDC functional descriptors missing\n");
 202                 goto err;
 203         }
 204
 205         /* verify CDC Union */
 206         if (desc->bInterfaceNumber != cdc_union->bMasterInterface0) {
 207                 dev_err(&intf->dev, "bogus CDC Union: master=%u\n", cdc_union->bMasterInterface0);
 208                 goto err;
 209         }
 210
 211         /* need to save these for unbind */
 212         info->control = intf;
 213         info->data = usb_ifnum_to_if(dev->udev, cdc_union->bSlaveInterface0);
 214         if (!info->data) {
 215                 dev_err(&intf->dev, "bogus CDC Union: slave=%u\n", cdc_union->bSlaveInterface0);
 216                 goto err;
 217         }
 218
 219         /* errors aren't fatal - we can live with the dynamic address */
 220         if (cdc_ether) {
 221                 dev->hard_mtu = le16_to_cpu(cdc_ether->wMaxSegmentSize);
 222                 usbnet_get_ethernet_addr(dev, cdc_ether->iMACAddress);
 223         }
 224
 225         /* claim data interface and set it up */
 226         status = usb_driver_claim_interface(driver, info->data, dev);
 227         if (status < 0)
 228                 goto err;
 229
 230         status = qmi_wwan_register_subdriver(dev);
 231         if (status < 0) {
 232                 usb_set_intfdata(info->data, NULL);
 233                 usb_driver_release_interface(driver, info->data);
 234         }
 235
 236 err:
 237         return status;
 238 }
 239
 240 /* Some devices combine the "control" and "data" functions into a
 241  * single interface with all three endpoints: interrupt + bulk in and
 242  * out
 243  */
 244 static int qmi_wwan_bind_shared(struct usbnet *dev, struct usb_interface *intf)
 245 {
 246         int rv;
 247         struct qmi_wwan_state *info = (void *)&dev->data;
 248
 249         /* ZTE makes devices where the interface descriptors and endpoint
 250          * configurations of two or more interfaces are identical, even
 251          * though the functions are completely different.  If set, then
 252          * driver_info->data is a bitmap of acceptable interface numbers
 253          * allowing us to bind to one such interface without binding to
 254          * all of them
 255          */
 256         if (dev->driver_info->data &&
 257             !test_bit(intf->cur_altsetting->desc.bInterfaceNumber, &dev->driver_info->data)) {
 258                 dev_info(&intf->dev, "not on our whitelist - ignored");
 259                 rv = -ENODEV;
 260                 goto err;
 261         }
 262
 263         /*  control and data is shared */
 264         info->control = intf;
 265         info->data = intf;
 266         rv = qmi_wwan_register_subdriver(dev);
 267
 268 err:
 269         return rv;
 270 }
 271
 272 /* Gobi devices uses identical class/protocol codes for all interfaces regardless
 273  * of function. Some of these are CDC ACM like and have the exact same endpoints
 274  * we are looking for. This leaves two possible strategies for identifying the
 275  * correct interface:
 276  *   a) hardcoding interface number, or
 277  *   b) use the fact that the wwan interface is the only one lacking additional
 278  *      (CDC functional) descriptors
 279  *
 280  * Let's see if we can get away with the generic b) solution.
 281  */
 282 static int qmi_wwan_bind_gobi(struct usbnet *dev, struct usb_interface *intf)
 283 {
 284         int rv = -EINVAL;
 285
 286         /* ignore any interface with additional descriptors */
 287         if (intf->cur_altsetting->extralen)
 288                 goto err;
 289
 290         rv = qmi_wwan_bind_shared(dev, intf);
 291 err:
 292         return rv;
 293 }
 294
 295 static void qmi_wwan_unbind(struct usbnet *dev, struct usb_interface *intf)
 296 {
 297         struct qmi_wwan_state *info = (void *)&dev->data;
 298         struct usb_driver *driver = driver_of(intf);
 299         struct usb_interface *other;
 300
 301         if (info->subdriver && info->subdriver->disconnect)
 302                 info->subdriver->disconnect(info->control);
 303
 304         /* allow user to unbind using either control or data */
 305         if (intf == info->control)
 306                 other = info->data;
 307         else
 308                 other = info->control;
 309
 310         /* only if not shared */
 311         if (other && intf != other) {
 312                 usb_set_intfdata(other, NULL);
 313                 usb_driver_release_interface(driver, other);
 314         }
 315
 316         info->subdriver = NULL;
 317         info->data = NULL;
 318         info->control = NULL;
 319 }
 320
 321 /* suspend/resume wrappers calling both usbnet and the cdc-wdm
 322  * subdriver if present.
 323  *
 324  * NOTE: cdc-wdm also supports pre/post_reset, but we cannot provide
 325  * wrappers for those without adding usbnet reset support first.
 326  */
 327 static int qmi_wwan_suspend(struct usb_interface *intf, pm_message_t message)
 328 {
 329         struct usbnet *dev = usb_get_intfdata(intf);
 330         struct qmi_wwan_state *info = (void *)&dev->data;
 331         int ret;
 332
 333         ret = usbnet_suspend(intf, message);
 334         if (ret < 0)
 335                 goto err;
 336
 337         if (info->subdriver && info->subdriver->suspend)
 338                 ret = info->subdriver->suspend(intf, message);
 339         if (ret < 0)
 340                 usbnet_resume(intf);
 341 err:
 342         return ret;
 343 }
 344
 345 static int qmi_wwan_resume(struct usb_interface *intf)
 346 {
 347         struct usbnet *dev = usb_get_intfdata(intf);
 348         struct qmi_wwan_state *info = (void *)&dev->data;
 349         int ret = 0;
 350
 351         if (info->subdriver && info->subdriver->resume)
 352                 ret = info->subdriver->resume(intf);
 353         if (ret < 0)
 354                 goto err;
 355         ret = usbnet_resume(intf);
 356         if (ret < 0 && info->subdriver && info->subdriver->resume && info->subdriver->suspend)
 357                 info->subdriver->suspend(intf, PMSG_SUSPEND);
 358 err:
 359         return ret;
 360 }
 361
 362 static const struct driver_info qmi_wwan_info = {
 363         .description    = "WWAN/QMI device",
 364         .flags          = FLAG_WWAN,
 365         .bind           = qmi_wwan_bind,
 366         .unbind         = qmi_wwan_unbind,
 367         .manage_power   = qmi_wwan_manage_power,
 368 };
 369
 370 static const struct driver_info qmi_wwan_shared = {
 371         .description    = "WWAN/QMI device",
 372         .flags          = FLAG_WWAN,
 373         .bind           = qmi_wwan_bind_shared,
 374         .unbind         = qmi_wwan_unbind,
 375         .manage_power   = qmi_wwan_manage_power,
 376 };
 377
 378 static const struct driver_info qmi_wwan_gobi = {
 379         .description    = "Qualcomm Gobi wwan/QMI device",
 380         .flags          = FLAG_WWAN,
 381         .bind           = qmi_wwan_bind_gobi,
 382         .unbind         = qmi_wwan_unbind,
 383         .manage_power   = qmi_wwan_manage_power,
 384 };
 385
 386 /* ZTE suck at making USB descriptors */
 387 static const struct driver_info qmi_wwan_force_int1 = {
 388         .description    = "Qualcomm WWAN/QMI device",
 389         .flags          = FLAG_WWAN,
 390         .bind           = qmi_wwan_bind_shared,
 391         .unbind         = qmi_wwan_unbind,
 392         .manage_power   = qmi_wwan_manage_power,
 393         .data           = BIT(1), /* interface whitelist bitmap */
 394 };
 395
 396 static const struct driver_info qmi_wwan_force_int4 = {
 397         .description    = "Qualcomm WWAN/QMI device",
 398         .flags          = FLAG_WWAN,
 399         .bind           = qmi_wwan_bind_shared,
 400         .unbind         = qmi_wwan_unbind,
 401         .manage_power   = qmi_wwan_manage_power,
 402         .data           = BIT(4), /* interface whitelist bitmap */
 403 };
 404
 405 /* Sierra Wireless provide equally useless interface descriptors
 406  * Devices in QMI mode can be switched between two different
 407  * configurations:
 408  *   a) USB interface #8 is QMI/wwan
 409  *   b) USB interfaces #8, #19 and #20 are QMI/wwan
 410  *
 411  * Both configurations provide a number of other interfaces (serial++),
 412  * some of which have the same endpoint configuration as we expect, so
 413  * a whitelist or blacklist is necessary.
 414  *
 415  * FIXME: The below whitelist should include BIT(20).  It does not
 416  * because I cannot get it to work...
 417  */
 418 static const struct driver_info qmi_wwan_sierra = {
 419         .description    = "Sierra Wireless wwan/QMI device",
 420         .flags          = FLAG_WWAN,
 421         .bind           = qmi_wwan_bind_gobi,
 422         .unbind         = qmi_wwan_unbind,
 423         .manage_power   = qmi_wwan_manage_power,
 424         .data           = BIT(8) | BIT(19), /* interface whitelist bitmap */
 425 };
 426
 427 #define HUAWEI_VENDOR_ID        0x12D1
 428 #define QMI_GOBI_DEVICE(vend, prod) \
 429         USB_DEVICE(vend, prod), \
 430         .driver_info = (unsigned long)&qmi_wwan_gobi
 431
 432 static const struct usb_device_id products[] = {
 433         {       /* Huawei E392, E398 and possibly others sharing both device id and more... */
 434                 .match_flags        = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_INFO,
 435                 .idVendor           = HUAWEI_VENDOR_ID,
 436                 .bInterfaceClass    = USB_CLASS_VENDOR_SPEC,
 437                 .bInterfaceSubClass = 1,
 438                 .bInterfaceProtocol = 9, /* CDC Ethernet *control* interface */
 439                 .driver_info        = (unsigned long)&qmi_wwan_info,
 440         },
 441         {       /* Vodafone/Huawei K5005 (12d1:14c8) and similar modems */
 442                 .match_flags        = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_INFO,
 443                 .idVendor           = HUAWEI_VENDOR_ID,
 444                 .bInterfaceClass    = USB_CLASS_VENDOR_SPEC,
 445                 .bInterfaceSubClass = 1,
 446                 .bInterfaceProtocol = 57, /* CDC Ethernet *control* interface */
 447                 .driver_info        = (unsigned long)&qmi_wwan_info,
 448         },
 449         {       /* Huawei E392, E398 and possibly others in "Windows mode"
 450                  * using a combined control and data interface without any CDC
 451                  * functional descriptors
 452                  */
 453                 .match_flags        = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_INFO,
 454                 .idVendor           = HUAWEI_VENDOR_ID,
 455                 .bInterfaceClass    = USB_CLASS_VENDOR_SPEC,
 456                 .bInterfaceSubClass = 1,
 457                 .bInterfaceProtocol = 17,
 458                 .driver_info        = (unsigned long)&qmi_wwan_shared,
 459         },
 460         {       /* Pantech UML290 */
 461                 .match_flags        = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
 462                 .idVendor           = 0x106c,
 463                 .idProduct          = 0x3718,
 464                 .bInterfaceClass    = 0xff,
 465                 .bInterfaceSubClass = 0xf0,
 466                 .bInterfaceProtocol = 0xff,
 467                 .driver_info        = (unsigned long)&qmi_wwan_shared,
 468         },
 469         {       /* ZTE MF820D */
 470                 .match_flags        = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
 471                 .idVendor           = 0x19d2,
 472                 .idProduct          = 0x0167,
 473                 .bInterfaceClass    = 0xff,
 474                 .bInterfaceSubClass = 0xff,
 475                 .bInterfaceProtocol = 0xff,
 476                 .driver_info        = (unsigned long)&qmi_wwan_force_int4,
 477         },
 478         {       /* ZTE (Vodafone) K3520-Z */
 479                 .match_flags        = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
 480                 .idVendor           = 0x19d2,
 481                 .idProduct          = 0x0055,
 482                 .bInterfaceClass    = 0xff,
 483                 .bInterfaceSubClass = 0xff,
 484                 .bInterfaceProtocol = 0xff,
 485                 .driver_info        = (unsigned long)&qmi_wwan_force_int1,
 486         },
 487         {       /* ZTE (Vodafone) K3565-Z */
 488                 .match_flags        = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
 489                 .idVendor           = 0x19d2,
 490                 .idProduct          = 0x0063,
 491                 .bInterfaceClass    = 0xff,
 492                 .bInterfaceSubClass = 0xff,
 493                 .bInterfaceProtocol = 0xff,
 494                 .driver_info        = (unsigned long)&qmi_wwan_force_int4,
 495         },
 496         {       /* ZTE (Vodafone) K3570-Z */
 497                 .match_flags        = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
 498                 .idVendor           = 0x19d2,
 499                 .idProduct          = 0x1008,
 500                 .bInterfaceClass    = 0xff,
 501                 .bInterfaceSubClass = 0xff,
 502                 .bInterfaceProtocol = 0xff,
 503                 .driver_info        = (unsigned long)&qmi_wwan_force_int4,
 504         },
 505         {       /* ZTE (Vodafone) K3571-Z */
 506                 .match_flags        = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
 507                 .idVendor           = 0x19d2,
 508                 .idProduct          = 0x1010,
 509                 .bInterfaceClass    = 0xff,
 510                 .bInterfaceSubClass = 0xff,
 511                 .bInterfaceProtocol = 0xff,
 512                 .driver_info        = (unsigned long)&qmi_wwan_force_int4,
 513         },
 514         {       /* ZTE (Vodafone) K3765-Z */
 515                 .match_flags        = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
 516                 .idVendor           = 0x19d2,
 517                 .idProduct          = 0x2002,
 518                 .bInterfaceClass    = 0xff,
 519                 .bInterfaceSubClass = 0xff,
 520                 .bInterfaceProtocol = 0xff,
 521                 .driver_info        = (unsigned long)&qmi_wwan_force_int4,
 522         },
 523         {       /* ZTE (Vodafone) K4505-Z */
 524                 .match_flags        = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
 525                 .idVendor           = 0x19d2,
 526                 .idProduct          = 0x0104,
 527                 .bInterfaceClass    = 0xff,
 528                 .bInterfaceSubClass = 0xff,
 529                 .bInterfaceProtocol = 0xff,
 530                 .driver_info        = (unsigned long)&qmi_wwan_force_int4,
 531         },
 532         {       /* Sierra Wireless MC77xx in QMI mode */
 533                 .match_flags        = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
 534                 .idVendor           = 0x1199,
 535                 .idProduct          = 0x68a2,
 536                 .bInterfaceClass    = 0xff,
 537                 .bInterfaceSubClass = 0xff,
 538                 .bInterfaceProtocol = 0xff,
 539                 .driver_info        = (unsigned long)&qmi_wwan_sierra,
 540         },
 541         {QMI_GOBI_DEVICE(0x05c6, 0x9212)},      /* Acer Gobi Modem Device */
 542         {QMI_GOBI_DEVICE(0x03f0, 0x1f1d)},      /* HP un2400 Gobi Modem Device */
 543         {QMI_GOBI_DEVICE(0x03f0, 0x371d)},      /* HP un2430 Mobile Broadband Module */
 544         {QMI_GOBI_DEVICE(0x04da, 0x250d)},      /* Panasonic Gobi Modem device */
 545         {QMI_GOBI_DEVICE(0x413c, 0x8172)},      /* Dell Gobi Modem device */
 546         {QMI_GOBI_DEVICE(0x1410, 0xa001)},      /* Novatel Gobi Modem device */
 547         {QMI_GOBI_DEVICE(0x0b05, 0x1776)},      /* Asus Gobi Modem device */
 548         {QMI_GOBI_DEVICE(0x19d2, 0xfff3)},      /* ONDA Gobi Modem device */
 549         {QMI_GOBI_DEVICE(0x05c6, 0x9001)},      /* Generic Gobi Modem device */
 550         {QMI_GOBI_DEVICE(0x05c6, 0x9002)},      /* Generic Gobi Modem device */
 551         {QMI_GOBI_DEVICE(0x05c6, 0x9202)},      /* Generic Gobi Modem device */
 552         {QMI_GOBI_DEVICE(0x05c6, 0x9203)},      /* Generic Gobi Modem device */
 553         {QMI_GOBI_DEVICE(0x05c6, 0x9222)},      /* Generic Gobi Modem device */
 554         {QMI_GOBI_DEVICE(0x05c6, 0x9009)},      /* Generic Gobi Modem device */
 555         {QMI_GOBI_DEVICE(0x413c, 0x8186)},      /* Dell Gobi 2000 Modem device (N0218, VU936) */
 556         {QMI_GOBI_DEVICE(0x05c6, 0x920b)},      /* Generic Gobi 2000 Modem device */
 557         {QMI_GOBI_DEVICE(0x05c6, 0x9225)},      /* Sony Gobi 2000 Modem device (N0279, VU730) */
 558         {QMI_GOBI_DEVICE(0x05c6, 0x9245)},      /* Samsung Gobi 2000 Modem device (VL176) */
 559         {QMI_GOBI_DEVICE(0x03f0, 0x251d)},      /* HP Gobi 2000 Modem device (VP412) */
 560         {QMI_GOBI_DEVICE(0x05c6, 0x9215)},      /* Acer Gobi 2000 Modem device (VP413) */
 561         {QMI_GOBI_DEVICE(0x05c6, 0x9265)},      /* Asus Gobi 2000 Modem device (VR305) */
 562         {QMI_GOBI_DEVICE(0x05c6, 0x9235)},      /* Top Global Gobi 2000 Modem device (VR306) */
 563         {QMI_GOBI_DEVICE(0x05c6, 0x9275)},      /* iRex Technologies Gobi 2000 Modem device (VR307) */
 564         {QMI_GOBI_DEVICE(0x1199, 0x9001)},      /* Sierra Wireless Gobi 2000 Modem device (VT773) */
 565         {QMI_GOBI_DEVICE(0x1199, 0x9002)},      /* Sierra Wireless Gobi 2000 Modem device (VT773) */
 566         {QMI_GOBI_DEVICE(0x1199, 0x9003)},      /* Sierra Wireless Gobi 2000 Modem device (VT773) */
 567         {QMI_GOBI_DEVICE(0x1199, 0x9004)},      /* Sierra Wireless Gobi 2000 Modem device (VT773) */
 568         {QMI_GOBI_DEVICE(0x1199, 0x9005)},      /* Sierra Wireless Gobi 2000 Modem device (VT773) */
 569         {QMI_GOBI_DEVICE(0x1199, 0x9006)},      /* Sierra Wireless Gobi 2000 Modem device (VT773) */
 570         {QMI_GOBI_DEVICE(0x1199, 0x9007)},      /* Sierra Wireless Gobi 2000 Modem device (VT773) */
 571         {QMI_GOBI_DEVICE(0x1199, 0x9008)},      /* Sierra Wireless Gobi 2000 Modem device (VT773) */
 572         {QMI_GOBI_DEVICE(0x1199, 0x9009)},      /* Sierra Wireless Gobi 2000 Modem device (VT773) */
 573         {QMI_GOBI_DEVICE(0x1199, 0x900a)},      /* Sierra Wireless Gobi 2000 Modem device (VT773) */
 574         {QMI_GOBI_DEVICE(0x1199, 0x9011)},      /* Sierra Wireless Gobi 2000 Modem device (MC8305) */
 575         {QMI_GOBI_DEVICE(0x16d8, 0x8002)},      /* CMDTech Gobi 2000 Modem device (VU922) */
 576         {QMI_GOBI_DEVICE(0x05c6, 0x9205)},      /* Gobi 2000 Modem device */
 577         {QMI_GOBI_DEVICE(0x1199, 0x9013)},      /* Sierra Wireless Gobi 3000 Modem device (MC8355) */
 578         {QMI_GOBI_DEVICE(0x1199, 0x9015)},      /* Sierra Wireless Gobi 3000 Modem device */
 579         {QMI_GOBI_DEVICE(0x1199, 0x9019)},      /* Sierra Wireless Gobi 3000 Modem device */
 580         { }                                     /* END */
 581 };
 582 MODULE_DEVICE_TABLE(usb, products);
 583
 584 static struct usb_driver qmi_wwan_driver = {
 585         .name                 = "qmi_wwan",
 586         .id_table             = products,
 587         .probe                = usbnet_probe,
 588         .disconnect           = usbnet_disconnect,
 589         .suspend              = qmi_wwan_suspend,
 590         .resume               = qmi_wwan_resume,
 591         .reset_resume         = qmi_wwan_resume,
 592         .supports_autosuspend = 1,
 593 };
 594
 595 static int __init qmi_wwan_init(void)
 596 {
 597         return usb_register(&qmi_wwan_driver);
 598 }
 599 module_init(qmi_wwan_init);
 600
 601 static void __exit qmi_wwan_exit(void)
 602 {
 603         usb_deregister(&qmi_wwan_driver);
 604 }
 605 module_exit(qmi_wwan_exit);
 606
 607 MODULE_AUTHOR("Bjørn Mork <bjorn@mork.no>");
 608 MODULE_DESCRIPTION("Qualcomm MSM Interface (QMI) WWAN driver");
 609 MODULE_LICENSE("GPL");