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qmi_wwan.c
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1 /*
2  * Copyright (c) 2012 Bjørn Mork <[email protected]>
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 
79  /* can be called while disconnecting */
80  if (!dev)
81  return 0;
82  return qmi_wwan_manage_power(dev, on);
83 }
84 
85 /* collect all three endpoints and register subdriver */
86 static int qmi_wwan_register_subdriver(struct usbnet *dev)
87 {
88  int rv;
89  struct usb_driver *subdriver = NULL;
90  struct qmi_wwan_state *info = (void *)&dev->data;
91 
92  /* collect bulk endpoints */
93  rv = usbnet_get_endpoints(dev, info->data);
94  if (rv < 0)
95  goto err;
96 
97  /* update status endpoint if separate control interface */
98  if (info->control != info->data)
99  dev->status = &info->control->cur_altsetting->endpoint[0];
100 
101  /* require interrupt endpoint for subdriver */
102  if (!dev->status) {
103  rv = -EINVAL;
104  goto err;
105  }
106 
107  /* for subdriver power management */
108  atomic_set(&info->pmcount, 0);
109 
110  /* register subdriver */
111  subdriver = usb_cdc_wdm_register(info->control, &dev->status->desc, 4096, &qmi_wwan_cdc_wdm_manage_power);
112  if (IS_ERR(subdriver)) {
113  dev_err(&info->control->dev, "subdriver registration failed\n");
114  rv = PTR_ERR(subdriver);
115  goto err;
116  }
117 
118  /* prevent usbnet from using status endpoint */
119  dev->status = NULL;
120 
121  /* save subdriver struct for suspend/resume wrappers */
122  info->subdriver = subdriver;
123 
124 err:
125  return rv;
126 }
127 
128 static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
129 {
130  int status = -1;
131  u8 *buf = intf->cur_altsetting->extra;
132  int len = intf->cur_altsetting->extralen;
133  struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc;
134  struct usb_cdc_union_desc *cdc_union = NULL;
135  struct usb_cdc_ether_desc *cdc_ether = NULL;
136  u32 found = 0;
137  struct usb_driver *driver = driver_of(intf);
138  struct qmi_wwan_state *info = (void *)&dev->data;
139 
140  BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) < sizeof(struct qmi_wwan_state)));
141 
142  /* control and data is shared? */
143  if (intf->cur_altsetting->desc.bNumEndpoints == 3) {
144  info->control = intf;
145  info->data = intf;
146  goto shared;
147  }
148 
149  /* else require a single interrupt status endpoint on control intf */
150  if (intf->cur_altsetting->desc.bNumEndpoints != 1)
151  goto err;
152 
153  /* and a number of CDC descriptors */
154  while (len > 3) {
155  struct usb_descriptor_header *h = (void *)buf;
156 
157  /* ignore any misplaced descriptors */
158  if (h->bDescriptorType != USB_DT_CS_INTERFACE)
159  goto next_desc;
160 
161  /* buf[2] is CDC descriptor subtype */
162  switch (buf[2]) {
163  case USB_CDC_HEADER_TYPE:
164  if (found & 1 << USB_CDC_HEADER_TYPE) {
165  dev_dbg(&intf->dev, "extra CDC header\n");
166  goto err;
167  }
168  if (h->bLength != sizeof(struct usb_cdc_header_desc)) {
169  dev_dbg(&intf->dev, "CDC header len %u\n", h->bLength);
170  goto err;
171  }
172  break;
173  case USB_CDC_UNION_TYPE:
174  if (found & 1 << USB_CDC_UNION_TYPE) {
175  dev_dbg(&intf->dev, "extra CDC union\n");
176  goto err;
177  }
178  if (h->bLength != sizeof(struct usb_cdc_union_desc)) {
179  dev_dbg(&intf->dev, "CDC union len %u\n", h->bLength);
180  goto err;
181  }
182  cdc_union = (struct usb_cdc_union_desc *)buf;
183  break;
184  case USB_CDC_ETHERNET_TYPE:
185  if (found & 1 << USB_CDC_ETHERNET_TYPE) {
186  dev_dbg(&intf->dev, "extra CDC ether\n");
187  goto err;
188  }
189  if (h->bLength != sizeof(struct usb_cdc_ether_desc)) {
190  dev_dbg(&intf->dev, "CDC ether len %u\n", h->bLength);
191  goto err;
192  }
193  cdc_ether = (struct usb_cdc_ether_desc *)buf;
194  break;
195  }
196 
197  /*
198  * Remember which CDC functional descriptors we've seen. Works
199  * for all types we care about, of which USB_CDC_ETHERNET_TYPE
200  * (0x0f) is the highest numbered
201  */
202  if (buf[2] < 32)
203  found |= 1 << buf[2];
204 
205 next_desc:
206  len -= h->bLength;
207  buf += h->bLength;
208  }
209 
210  /* did we find all the required ones? */
211  if (!(found & (1 << USB_CDC_HEADER_TYPE)) ||
212  !(found & (1 << USB_CDC_UNION_TYPE))) {
213  dev_err(&intf->dev, "CDC functional descriptors missing\n");
214  goto err;
215  }
216 
217  /* verify CDC Union */
218  if (desc->bInterfaceNumber != cdc_union->bMasterInterface0) {
219  dev_err(&intf->dev, "bogus CDC Union: master=%u\n", cdc_union->bMasterInterface0);
220  goto err;
221  }
222 
223  /* need to save these for unbind */
224  info->control = intf;
225  info->data = usb_ifnum_to_if(dev->udev, cdc_union->bSlaveInterface0);
226  if (!info->data) {
227  dev_err(&intf->dev, "bogus CDC Union: slave=%u\n", cdc_union->bSlaveInterface0);
228  goto err;
229  }
230 
231  /* errors aren't fatal - we can live with the dynamic address */
232  if (cdc_ether) {
233  dev->hard_mtu = le16_to_cpu(cdc_ether->wMaxSegmentSize);
234  usbnet_get_ethernet_addr(dev, cdc_ether->iMACAddress);
235  }
236 
237  /* claim data interface and set it up */
238  status = usb_driver_claim_interface(driver, info->data, dev);
239  if (status < 0)
240  goto err;
241 
242 shared:
243  status = qmi_wwan_register_subdriver(dev);
244  if (status < 0 && info->control != info->data) {
245  usb_set_intfdata(info->data, NULL);
246  usb_driver_release_interface(driver, info->data);
247  }
248 
249 err:
250  return status;
251 }
252 
253 static void qmi_wwan_unbind(struct usbnet *dev, struct usb_interface *intf)
254 {
255  struct qmi_wwan_state *info = (void *)&dev->data;
256  struct usb_driver *driver = driver_of(intf);
257  struct usb_interface *other;
258 
259  if (info->subdriver && info->subdriver->disconnect)
260  info->subdriver->disconnect(info->control);
261 
262  /* allow user to unbind using either control or data */
263  if (intf == info->control)
264  other = info->data;
265  else
266  other = info->control;
267 
268  /* only if not shared */
269  if (other && intf != other) {
270  usb_set_intfdata(other, NULL);
271  usb_driver_release_interface(driver, other);
272  }
273 
274  info->subdriver = NULL;
275  info->data = NULL;
276  info->control = NULL;
277 }
278 
279 /* suspend/resume wrappers calling both usbnet and the cdc-wdm
280  * subdriver if present.
281  *
282  * NOTE: cdc-wdm also supports pre/post_reset, but we cannot provide
283  * wrappers for those without adding usbnet reset support first.
284  */
285 static int qmi_wwan_suspend(struct usb_interface *intf, pm_message_t message)
286 {
287  struct usbnet *dev = usb_get_intfdata(intf);
288  struct qmi_wwan_state *info = (void *)&dev->data;
289  int ret;
290 
291  ret = usbnet_suspend(intf, message);
292  if (ret < 0)
293  goto err;
294 
295  if (intf == info->control && info->subdriver && info->subdriver->suspend)
296  ret = info->subdriver->suspend(intf, message);
297  if (ret < 0)
298  usbnet_resume(intf);
299 err:
300  return ret;
301 }
302 
303 static int qmi_wwan_resume(struct usb_interface *intf)
304 {
305  struct usbnet *dev = usb_get_intfdata(intf);
306  struct qmi_wwan_state *info = (void *)&dev->data;
307  int ret = 0;
308  bool callsub = (intf == info->control && info->subdriver && info->subdriver->resume);
309 
310  if (callsub)
311  ret = info->subdriver->resume(intf);
312  if (ret < 0)
313  goto err;
314  ret = usbnet_resume(intf);
315  if (ret < 0 && callsub && info->subdriver->suspend)
316  info->subdriver->suspend(intf, PMSG_SUSPEND);
317 err:
318  return ret;
319 }
320 
321 static const struct driver_info qmi_wwan_info = {
322  .description = "WWAN/QMI device",
323  .flags = FLAG_WWAN,
324  .bind = qmi_wwan_bind,
325  .unbind = qmi_wwan_unbind,
326  .manage_power = qmi_wwan_manage_power,
327 };
328 
329 #define HUAWEI_VENDOR_ID 0x12D1
330 
331 /* map QMI/wwan function by a fixed interface number */
332 #define QMI_FIXED_INTF(vend, prod, num) \
333  USB_DEVICE_INTERFACE_NUMBER(vend, prod, num), \
334  .driver_info = (unsigned long)&qmi_wwan_info
335 
336 /* Gobi 1000 QMI/wwan interface number is 3 according to qcserial */
337 #define QMI_GOBI1K_DEVICE(vend, prod) \
338  QMI_FIXED_INTF(vend, prod, 3)
339 
340 /* Gobi 2000/3000 QMI/wwan interface number is 0 according to qcserial */
341 #define QMI_GOBI_DEVICE(vend, prod) \
342  QMI_FIXED_INTF(vend, prod, 0)
343 
344 static const struct usb_device_id products[] = {
345  /* 1. CDC ECM like devices match on the control interface */
346  { /* Huawei E392, E398 and possibly others sharing both device id and more... */
347  USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 9),
348  .driver_info = (unsigned long)&qmi_wwan_info,
349  },
350  { /* Vodafone/Huawei K5005 (12d1:14c8) and similar modems */
351  USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 57),
352  .driver_info = (unsigned long)&qmi_wwan_info,
353  },
354 
355  /* 2. Combined interface devices matching on class+protocol */
356  { /* Huawei E367 and possibly others in "Windows mode" */
357  USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 7),
358  .driver_info = (unsigned long)&qmi_wwan_info,
359  },
360  { /* Huawei E392, E398 and possibly others in "Windows mode" */
361  USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 17),
362  .driver_info = (unsigned long)&qmi_wwan_info,
363  },
364  { /* Pantech UML290, P4200 and more */
365  USB_VENDOR_AND_INTERFACE_INFO(0x106c, USB_CLASS_VENDOR_SPEC, 0xf0, 0xff),
366  .driver_info = (unsigned long)&qmi_wwan_info,
367  },
368  { /* Pantech UML290 - newer firmware */
369  USB_VENDOR_AND_INTERFACE_INFO(0x106c, USB_CLASS_VENDOR_SPEC, 0xf1, 0xff),
370  .driver_info = (unsigned long)&qmi_wwan_info,
371  },
372  { /* Novatel USB551L and MC551 */
373  USB_DEVICE_AND_INTERFACE_INFO(0x1410, 0xb001,
374  USB_CLASS_COMM,
375  USB_CDC_SUBCLASS_ETHERNET,
376  USB_CDC_PROTO_NONE),
377  .driver_info = (unsigned long)&qmi_wwan_info,
378  },
379  { /* Novatel E362 */
380  USB_DEVICE_AND_INTERFACE_INFO(0x1410, 0x9010,
381  USB_CLASS_COMM,
382  USB_CDC_SUBCLASS_ETHERNET,
383  USB_CDC_PROTO_NONE),
384  .driver_info = (unsigned long)&qmi_wwan_info,
385  },
386 
387  /* 3. Combined interface devices matching on interface number */
388  {QMI_FIXED_INTF(0x12d1, 0x140c, 1)}, /* Huawei E173 */
389  {QMI_FIXED_INTF(0x19d2, 0x0002, 1)},
390  {QMI_FIXED_INTF(0x19d2, 0x0012, 1)},
391  {QMI_FIXED_INTF(0x19d2, 0x0017, 3)},
392  {QMI_FIXED_INTF(0x19d2, 0x0021, 4)},
393  {QMI_FIXED_INTF(0x19d2, 0x0025, 1)},
394  {QMI_FIXED_INTF(0x19d2, 0x0031, 4)},
395  {QMI_FIXED_INTF(0x19d2, 0x0042, 4)},
396  {QMI_FIXED_INTF(0x19d2, 0x0049, 5)},
397  {QMI_FIXED_INTF(0x19d2, 0x0052, 4)},
398  {QMI_FIXED_INTF(0x19d2, 0x0055, 1)}, /* ZTE (Vodafone) K3520-Z */
399  {QMI_FIXED_INTF(0x19d2, 0x0058, 4)},
400  {QMI_FIXED_INTF(0x19d2, 0x0063, 4)}, /* ZTE (Vodafone) K3565-Z */
401  {QMI_FIXED_INTF(0x19d2, 0x0104, 4)}, /* ZTE (Vodafone) K4505-Z */
402  {QMI_FIXED_INTF(0x19d2, 0x0113, 5)},
403  {QMI_FIXED_INTF(0x19d2, 0x0118, 5)},
404  {QMI_FIXED_INTF(0x19d2, 0x0121, 5)},
405  {QMI_FIXED_INTF(0x19d2, 0x0123, 4)},
406  {QMI_FIXED_INTF(0x19d2, 0x0124, 5)},
407  {QMI_FIXED_INTF(0x19d2, 0x0125, 6)},
408  {QMI_FIXED_INTF(0x19d2, 0x0126, 5)},
409  {QMI_FIXED_INTF(0x19d2, 0x0130, 1)},
410  {QMI_FIXED_INTF(0x19d2, 0x0133, 3)},
411  {QMI_FIXED_INTF(0x19d2, 0x0141, 5)},
412  {QMI_FIXED_INTF(0x19d2, 0x0157, 5)}, /* ZTE MF683 */
413  {QMI_FIXED_INTF(0x19d2, 0x0158, 3)},
414  {QMI_FIXED_INTF(0x19d2, 0x0167, 4)}, /* ZTE MF820D */
415  {QMI_FIXED_INTF(0x19d2, 0x0168, 4)},
416  {QMI_FIXED_INTF(0x19d2, 0x0176, 3)},
417  {QMI_FIXED_INTF(0x19d2, 0x0178, 3)},
418  {QMI_FIXED_INTF(0x19d2, 0x0191, 4)}, /* ZTE EuFi890 */
419  {QMI_FIXED_INTF(0x19d2, 0x0199, 1)}, /* ZTE MF820S */
420  {QMI_FIXED_INTF(0x19d2, 0x0200, 1)},
421  {QMI_FIXED_INTF(0x19d2, 0x0257, 3)}, /* ZTE MF821 */
422  {QMI_FIXED_INTF(0x19d2, 0x0326, 4)}, /* ZTE MF821D */
423  {QMI_FIXED_INTF(0x19d2, 0x1008, 4)}, /* ZTE (Vodafone) K3570-Z */
424  {QMI_FIXED_INTF(0x19d2, 0x1010, 4)}, /* ZTE (Vodafone) K3571-Z */
425  {QMI_FIXED_INTF(0x19d2, 0x1012, 4)},
426  {QMI_FIXED_INTF(0x19d2, 0x1018, 3)}, /* ZTE (Vodafone) K5006-Z */
427  {QMI_FIXED_INTF(0x19d2, 0x1021, 2)},
428  {QMI_FIXED_INTF(0x19d2, 0x1245, 4)},
429  {QMI_FIXED_INTF(0x19d2, 0x1247, 4)},
430  {QMI_FIXED_INTF(0x19d2, 0x1252, 4)},
431  {QMI_FIXED_INTF(0x19d2, 0x1254, 4)},
432  {QMI_FIXED_INTF(0x19d2, 0x1255, 3)},
433  {QMI_FIXED_INTF(0x19d2, 0x1255, 4)},
434  {QMI_FIXED_INTF(0x19d2, 0x1256, 4)},
435  {QMI_FIXED_INTF(0x19d2, 0x1401, 2)},
436  {QMI_FIXED_INTF(0x19d2, 0x1402, 2)}, /* ZTE MF60 */
437  {QMI_FIXED_INTF(0x19d2, 0x1424, 2)},
438  {QMI_FIXED_INTF(0x19d2, 0x1425, 2)},
439  {QMI_FIXED_INTF(0x19d2, 0x1426, 2)}, /* ZTE MF91 */
440  {QMI_FIXED_INTF(0x19d2, 0x2002, 4)}, /* ZTE (Vodafone) K3765-Z */
441  {QMI_FIXED_INTF(0x0f3d, 0x68a2, 8)}, /* Sierra Wireless MC7700 */
442  {QMI_FIXED_INTF(0x114f, 0x68a2, 8)}, /* Sierra Wireless MC7750 */
443  {QMI_FIXED_INTF(0x1199, 0x68a2, 8)}, /* Sierra Wireless MC7710 in QMI mode */
444  {QMI_FIXED_INTF(0x1199, 0x68a2, 19)}, /* Sierra Wireless MC7710 in QMI mode */
445  {QMI_FIXED_INTF(0x1199, 0x901c, 8)}, /* Sierra Wireless EM7700 */
446 
447  /* 4. Gobi 1000 devices */
448  {QMI_GOBI1K_DEVICE(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */
449  {QMI_GOBI1K_DEVICE(0x03f0, 0x1f1d)}, /* HP un2400 Gobi Modem Device */
450  {QMI_GOBI1K_DEVICE(0x04da, 0x250d)}, /* Panasonic Gobi Modem device */
451  {QMI_GOBI1K_DEVICE(0x413c, 0x8172)}, /* Dell Gobi Modem device */
452  {QMI_GOBI1K_DEVICE(0x1410, 0xa001)}, /* Novatel Gobi Modem device */
453  {QMI_GOBI1K_DEVICE(0x0b05, 0x1776)}, /* Asus Gobi Modem device */
454  {QMI_GOBI1K_DEVICE(0x19d2, 0xfff3)}, /* ONDA Gobi Modem device */
455  {QMI_GOBI1K_DEVICE(0x05c6, 0x9001)}, /* Generic Gobi Modem device */
456  {QMI_GOBI1K_DEVICE(0x05c6, 0x9002)}, /* Generic Gobi Modem device */
457  {QMI_GOBI1K_DEVICE(0x05c6, 0x9202)}, /* Generic Gobi Modem device */
458  {QMI_GOBI1K_DEVICE(0x05c6, 0x9203)}, /* Generic Gobi Modem device */
459  {QMI_GOBI1K_DEVICE(0x05c6, 0x9222)}, /* Generic Gobi Modem device */
460  {QMI_GOBI1K_DEVICE(0x05c6, 0x9009)}, /* Generic Gobi Modem device */
461 
462  /* 5. Gobi 2000 and 3000 devices */
463  {QMI_GOBI_DEVICE(0x413c, 0x8186)}, /* Dell Gobi 2000 Modem device (N0218, VU936) */
464  {QMI_GOBI_DEVICE(0x413c, 0x8194)}, /* Dell Gobi 3000 Composite */
465  {QMI_GOBI_DEVICE(0x05c6, 0x920b)}, /* Generic Gobi 2000 Modem device */
466  {QMI_GOBI_DEVICE(0x05c6, 0x920d)}, /* Gobi 3000 Composite */
467  {QMI_GOBI_DEVICE(0x05c6, 0x9225)}, /* Sony Gobi 2000 Modem device (N0279, VU730) */
468  {QMI_GOBI_DEVICE(0x05c6, 0x9245)}, /* Samsung Gobi 2000 Modem device (VL176) */
469  {QMI_GOBI_DEVICE(0x03f0, 0x251d)}, /* HP Gobi 2000 Modem device (VP412) */
470  {QMI_GOBI_DEVICE(0x05c6, 0x9215)}, /* Acer Gobi 2000 Modem device (VP413) */
471  {QMI_GOBI_DEVICE(0x05c6, 0x9265)}, /* Asus Gobi 2000 Modem device (VR305) */
472  {QMI_GOBI_DEVICE(0x05c6, 0x9235)}, /* Top Global Gobi 2000 Modem device (VR306) */
473  {QMI_GOBI_DEVICE(0x05c6, 0x9275)}, /* iRex Technologies Gobi 2000 Modem device (VR307) */
474  {QMI_GOBI_DEVICE(0x1199, 0x68a5)}, /* Sierra Wireless Modem */
475  {QMI_GOBI_DEVICE(0x1199, 0x68a9)}, /* Sierra Wireless Modem */
476  {QMI_GOBI_DEVICE(0x1199, 0x9001)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
477  {QMI_GOBI_DEVICE(0x1199, 0x9002)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
478  {QMI_GOBI_DEVICE(0x1199, 0x9003)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
479  {QMI_GOBI_DEVICE(0x1199, 0x9004)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
480  {QMI_GOBI_DEVICE(0x1199, 0x9005)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
481  {QMI_GOBI_DEVICE(0x1199, 0x9006)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
482  {QMI_GOBI_DEVICE(0x1199, 0x9007)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
483  {QMI_GOBI_DEVICE(0x1199, 0x9008)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
484  {QMI_GOBI_DEVICE(0x1199, 0x9009)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
485  {QMI_GOBI_DEVICE(0x1199, 0x900a)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
486  {QMI_GOBI_DEVICE(0x1199, 0x9011)}, /* Sierra Wireless Gobi 2000 Modem device (MC8305) */
487  {QMI_FIXED_INTF(0x1199, 0x9011, 5)}, /* alternate interface number!? */
488  {QMI_GOBI_DEVICE(0x16d8, 0x8002)}, /* CMDTech Gobi 2000 Modem device (VU922) */
489  {QMI_GOBI_DEVICE(0x05c6, 0x9205)}, /* Gobi 2000 Modem device */
490  {QMI_GOBI_DEVICE(0x1199, 0x9013)}, /* Sierra Wireless Gobi 3000 Modem device (MC8355) */
491  {QMI_GOBI_DEVICE(0x03f0, 0x371d)}, /* HP un2430 Mobile Broadband Module */
492  {QMI_GOBI_DEVICE(0x1199, 0x9015)}, /* Sierra Wireless Gobi 3000 Modem device */
493  {QMI_GOBI_DEVICE(0x1199, 0x9019)}, /* Sierra Wireless Gobi 3000 Modem device */
494  {QMI_GOBI_DEVICE(0x1199, 0x901b)}, /* Sierra Wireless MC7770 */
495  {QMI_GOBI_DEVICE(0x12d1, 0x14f1)}, /* Sony Gobi 3000 Composite */
496  {QMI_GOBI_DEVICE(0x1410, 0xa021)}, /* Foxconn Gobi 3000 Modem device (Novatel E396) */
497 
498  { } /* END */
499 };
500 MODULE_DEVICE_TABLE(usb, products);
501 
502 static int qmi_wwan_probe(struct usb_interface *intf, const struct usb_device_id *prod)
503 {
504  struct usb_device_id *id = (struct usb_device_id *)prod;
505 
506  /* Workaround to enable dynamic IDs. This disables usbnet
507  * blacklisting functionality. Which, if required, can be
508  * reimplemented here by using a magic "blacklist" value
509  * instead of 0 in the static device id table
510  */
511  if (!id->driver_info) {
512  dev_dbg(&intf->dev, "setting defaults for dynamic device id\n");
513  id->driver_info = (unsigned long)&qmi_wwan_info;
514  }
515 
516  return usbnet_probe(intf, id);
517 }
518 
519 static struct usb_driver qmi_wwan_driver = {
520  .name = "qmi_wwan",
521  .id_table = products,
522  .probe = qmi_wwan_probe,
523  .disconnect = usbnet_disconnect,
524  .suspend = qmi_wwan_suspend,
525  .resume = qmi_wwan_resume,
526  .reset_resume = qmi_wwan_resume,
527  .supports_autosuspend = 1,
528  .disable_hub_initiated_lpm = 1,
529 };
530 
531 module_usb_driver(qmi_wwan_driver);
532 
533 MODULE_AUTHOR("Bjørn Mork <[email protected]>");
534 MODULE_DESCRIPTION("Qualcomm MSM Interface (QMI) WWAN driver");
535 MODULE_LICENSE("GPL");
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