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cdc_ether.c
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1 /*
2  * CDC Ethernet based networking peripherals
3  * Copyright (C) 2003-2005 by David Brownell
4  * Copyright (C) 2006 by Ole Andre Vadla Ravnas (ActiveSync)
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19  */
20 
21 // #define DEBUG // error path messages, extra info
22 // #define VERBOSE // more; success messages
23 
24 #include <linux/module.h>
25 #include <linux/init.h>
26 #include <linux/netdevice.h>
27 #include <linux/etherdevice.h>
28 #include <linux/ethtool.h>
29 #include <linux/workqueue.h>
30 #include <linux/mii.h>
31 #include <linux/usb.h>
32 #include <linux/usb/cdc.h>
33 #include <linux/usb/usbnet.h>
34 
35 
36 #if defined(CONFIG_USB_NET_RNDIS_HOST) || defined(CONFIG_USB_NET_RNDIS_HOST_MODULE)
37 
38 static int is_rndis(struct usb_interface_descriptor *desc)
39 {
40  return (desc->bInterfaceClass == USB_CLASS_COMM &&
41  desc->bInterfaceSubClass == 2 &&
42  desc->bInterfaceProtocol == 0xff);
43 }
44 
45 static int is_activesync(struct usb_interface_descriptor *desc)
46 {
47  return (desc->bInterfaceClass == USB_CLASS_MISC &&
48  desc->bInterfaceSubClass == 1 &&
49  desc->bInterfaceProtocol == 1);
50 }
51 
52 static int is_wireless_rndis(struct usb_interface_descriptor *desc)
53 {
54  return (desc->bInterfaceClass == USB_CLASS_WIRELESS_CONTROLLER &&
55  desc->bInterfaceSubClass == 1 &&
56  desc->bInterfaceProtocol == 3);
57 }
58 
59 #else
60 
61 #define is_rndis(desc) 0
62 #define is_activesync(desc) 0
63 #define is_wireless_rndis(desc) 0
64 
65 #endif
66 
67 static const u8 mbm_guid[16] = {
68  0xa3, 0x17, 0xa8, 0x8b, 0x04, 0x5e, 0x4f, 0x01,
69  0xa6, 0x07, 0xc0, 0xff, 0xcb, 0x7e, 0x39, 0x2a,
70 };
71 
72 /*
73  * probes control interface, claims data interface, collects the bulk
74  * endpoints, activates data interface (if needed), maybe sets MTU.
75  * all pure cdc, except for certain firmware workarounds, and knowing
76  * that rndis uses one different rule.
77  */
78 int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
79 {
80  u8 *buf = intf->cur_altsetting->extra;
81  int len = intf->cur_altsetting->extralen;
82  struct usb_interface_descriptor *d;
83  struct cdc_state *info = (void *) &dev->data;
84  int status;
85  int rndis;
86  bool android_rndis_quirk = false;
87  struct usb_driver *driver = driver_of(intf);
88  struct usb_cdc_mdlm_desc *desc = NULL;
89  struct usb_cdc_mdlm_detail_desc *detail = NULL;
90 
91  if (sizeof dev->data < sizeof *info)
92  return -EDOM;
93 
94  /* expect strict spec conformance for the descriptors, but
95  * cope with firmware which stores them in the wrong place
96  */
97  if (len == 0 && dev->udev->actconfig->extralen) {
98  /* Motorola SB4100 (and others: Brad Hards says it's
99  * from a Broadcom design) put CDC descriptors here
100  */
101  buf = dev->udev->actconfig->extra;
102  len = dev->udev->actconfig->extralen;
103  dev_dbg(&intf->dev, "CDC descriptors on config\n");
104  }
105 
106  /* Maybe CDC descriptors are after the endpoint? This bug has
107  * been seen on some 2Wire Inc RNDIS-ish products.
108  */
109  if (len == 0) {
110  struct usb_host_endpoint *hep;
111 
112  hep = intf->cur_altsetting->endpoint;
113  if (hep) {
114  buf = hep->extra;
115  len = hep->extralen;
116  }
117  if (len)
118  dev_dbg(&intf->dev,
119  "CDC descriptors on endpoint\n");
120  }
121 
122  /* this assumes that if there's a non-RNDIS vendor variant
123  * of cdc-acm, it'll fail RNDIS requests cleanly.
124  */
125  rndis = (is_rndis(&intf->cur_altsetting->desc) ||
126  is_activesync(&intf->cur_altsetting->desc) ||
127  is_wireless_rndis(&intf->cur_altsetting->desc));
128 
129  memset(info, 0, sizeof *info);
130  info->control = intf;
131  while (len > 3) {
132  if (buf [1] != USB_DT_CS_INTERFACE)
133  goto next_desc;
134 
135  /* use bDescriptorSubType to identify the CDC descriptors.
136  * We expect devices with CDC header and union descriptors.
137  * For CDC Ethernet we need the ethernet descriptor.
138  * For RNDIS, ignore two (pointless) CDC modem descriptors
139  * in favor of a complicated OID-based RPC scheme doing what
140  * CDC Ethernet achieves with a simple descriptor.
141  */
142  switch (buf [2]) {
143  case USB_CDC_HEADER_TYPE:
144  if (info->header) {
145  dev_dbg(&intf->dev, "extra CDC header\n");
146  goto bad_desc;
147  }
148  info->header = (void *) buf;
149  if (info->header->bLength != sizeof *info->header) {
150  dev_dbg(&intf->dev, "CDC header len %u\n",
151  info->header->bLength);
152  goto bad_desc;
153  }
154  break;
155  case USB_CDC_ACM_TYPE:
156  /* paranoia: disambiguate a "real" vendor-specific
157  * modem interface from an RNDIS non-modem.
158  */
159  if (rndis) {
160  struct usb_cdc_acm_descriptor *acm;
161 
162  acm = (void *) buf;
163  if (acm->bmCapabilities) {
164  dev_dbg(&intf->dev,
165  "ACM capabilities %02x, "
166  "not really RNDIS?\n",
167  acm->bmCapabilities);
168  goto bad_desc;
169  }
170  }
171  break;
172  case USB_CDC_UNION_TYPE:
173  if (info->u) {
174  dev_dbg(&intf->dev, "extra CDC union\n");
175  goto bad_desc;
176  }
177  info->u = (void *) buf;
178  if (info->u->bLength != sizeof *info->u) {
179  dev_dbg(&intf->dev, "CDC union len %u\n",
180  info->u->bLength);
181  goto bad_desc;
182  }
183 
184  /* we need a master/control interface (what we're
185  * probed with) and a slave/data interface; union
186  * descriptors sort this all out.
187  */
188  info->control = usb_ifnum_to_if(dev->udev,
189  info->u->bMasterInterface0);
190  info->data = usb_ifnum_to_if(dev->udev,
191  info->u->bSlaveInterface0);
192  if (!info->control || !info->data) {
193  dev_dbg(&intf->dev,
194  "master #%u/%p slave #%u/%p\n",
195  info->u->bMasterInterface0,
196  info->control,
197  info->u->bSlaveInterface0,
198  info->data);
199  /* fall back to hard-wiring for RNDIS */
200  if (rndis) {
201  android_rndis_quirk = true;
202  goto next_desc;
203  }
204  goto bad_desc;
205  }
206  if (info->control != intf) {
207  dev_dbg(&intf->dev, "bogus CDC Union\n");
208  /* Ambit USB Cable Modem (and maybe others)
209  * interchanges master and slave interface.
210  */
211  if (info->data == intf) {
212  info->data = info->control;
213  info->control = intf;
214  } else
215  goto bad_desc;
216  }
217 
218  /* a data interface altsetting does the real i/o */
219  d = &info->data->cur_altsetting->desc;
220  if (d->bInterfaceClass != USB_CLASS_CDC_DATA) {
221  dev_dbg(&intf->dev, "slave class %u\n",
222  d->bInterfaceClass);
223  goto bad_desc;
224  }
225  break;
226  case USB_CDC_ETHERNET_TYPE:
227  if (info->ether) {
228  dev_dbg(&intf->dev, "extra CDC ether\n");
229  goto bad_desc;
230  }
231  info->ether = (void *) buf;
232  if (info->ether->bLength != sizeof *info->ether) {
233  dev_dbg(&intf->dev, "CDC ether len %u\n",
234  info->ether->bLength);
235  goto bad_desc;
236  }
237  dev->hard_mtu = le16_to_cpu(
238  info->ether->wMaxSegmentSize);
239  /* because of Zaurus, we may be ignoring the host
240  * side link address we were given.
241  */
242  break;
243  case USB_CDC_MDLM_TYPE:
244  if (desc) {
245  dev_dbg(&intf->dev, "extra MDLM descriptor\n");
246  goto bad_desc;
247  }
248 
249  desc = (void *)buf;
250 
251  if (desc->bLength != sizeof(*desc))
252  goto bad_desc;
253 
254  if (memcmp(&desc->bGUID, mbm_guid, 16))
255  goto bad_desc;
256  break;
257  case USB_CDC_MDLM_DETAIL_TYPE:
258  if (detail) {
259  dev_dbg(&intf->dev, "extra MDLM detail descriptor\n");
260  goto bad_desc;
261  }
262 
263  detail = (void *)buf;
264 
265  if (detail->bGuidDescriptorType == 0) {
266  if (detail->bLength < (sizeof(*detail) + 1))
267  goto bad_desc;
268  } else
269  goto bad_desc;
270  break;
271  }
272 next_desc:
273  len -= buf [0]; /* bLength */
274  buf += buf [0];
275  }
276 
277  /* Microsoft ActiveSync based and some regular RNDIS devices lack the
278  * CDC descriptors, so we'll hard-wire the interfaces and not check
279  * for descriptors.
280  *
281  * Some Android RNDIS devices have a CDC Union descriptor pointing
282  * to non-existing interfaces. Ignore that and attempt the same
283  * hard-wired 0 and 1 interfaces.
284  */
285  if (rndis && (!info->u || android_rndis_quirk)) {
286  info->control = usb_ifnum_to_if(dev->udev, 0);
287  info->data = usb_ifnum_to_if(dev->udev, 1);
288  if (!info->control || !info->data || info->control != intf) {
289  dev_dbg(&intf->dev,
290  "rndis: master #0/%p slave #1/%p\n",
291  info->control,
292  info->data);
293  goto bad_desc;
294  }
295 
296  } else if (!info->header || !info->u || (!rndis && !info->ether)) {
297  dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n",
298  info->header ? "" : "header ",
299  info->u ? "" : "union ",
300  info->ether ? "" : "ether ");
301  goto bad_desc;
302  }
303 
304  /* claim data interface and set it up ... with side effects.
305  * network traffic can't flow until an altsetting is enabled.
306  */
307  status = usb_driver_claim_interface(driver, info->data, dev);
308  if (status < 0)
309  return status;
310  status = usbnet_get_endpoints(dev, info->data);
311  if (status < 0) {
312  /* ensure immediate exit from usbnet_disconnect */
313  usb_set_intfdata(info->data, NULL);
314  usb_driver_release_interface(driver, info->data);
315  return status;
316  }
317 
318  /* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */
319  dev->status = NULL;
320  if (info->control->cur_altsetting->desc.bNumEndpoints == 1) {
321  struct usb_endpoint_descriptor *desc;
322 
323  dev->status = &info->control->cur_altsetting->endpoint [0];
324  desc = &dev->status->desc;
325  if (!usb_endpoint_is_int_in(desc) ||
326  (le16_to_cpu(desc->wMaxPacketSize)
327  < sizeof(struct usb_cdc_notification)) ||
328  !desc->bInterval) {
329  dev_dbg(&intf->dev, "bad notification endpoint\n");
330  dev->status = NULL;
331  }
332  }
333  if (rndis && !dev->status) {
334  dev_dbg(&intf->dev, "missing RNDIS status endpoint\n");
335  usb_set_intfdata(info->data, NULL);
336  usb_driver_release_interface(driver, info->data);
337  return -ENODEV;
338  }
339  return 0;
340 
341 bad_desc:
342  dev_info(&dev->udev->dev, "bad CDC descriptors\n");
343  return -ENODEV;
344 }
345 EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind);
346 
347 void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf)
348 {
349  struct cdc_state *info = (void *) &dev->data;
350  struct usb_driver *driver = driver_of(intf);
351 
352  /* disconnect master --> disconnect slave */
353  if (intf == info->control && info->data) {
354  /* ensure immediate exit from usbnet_disconnect */
355  usb_set_intfdata(info->data, NULL);
356  usb_driver_release_interface(driver, info->data);
357  info->data = NULL;
358  }
359 
360  /* and vice versa (just in case) */
361  else if (intf == info->data && info->control) {
362  /* ensure immediate exit from usbnet_disconnect */
363  usb_set_intfdata(info->control, NULL);
364  usb_driver_release_interface(driver, info->control);
365  info->control = NULL;
366  }
367 }
368 EXPORT_SYMBOL_GPL(usbnet_cdc_unbind);
369 
370 /*-------------------------------------------------------------------------
371  *
372  * Communications Device Class, Ethernet Control model
373  *
374  * Takes two interfaces. The DATA interface is inactive till an altsetting
375  * is selected. Configuration data includes class descriptors. There's
376  * an optional status endpoint on the control interface.
377  *
378  * This should interop with whatever the 2.4 "CDCEther.c" driver
379  * (by Brad Hards) talked with, with more functionality.
380  *
381  *-------------------------------------------------------------------------*/
382 
383 static void dumpspeed(struct usbnet *dev, __le32 *speeds)
384 {
385  netif_info(dev, timer, dev->net,
386  "link speeds: %u kbps up, %u kbps down\n",
387  __le32_to_cpu(speeds[0]) / 1000,
388  __le32_to_cpu(speeds[1]) / 1000);
389 }
390 
391 void usbnet_cdc_status(struct usbnet *dev, struct urb *urb)
392 {
393  struct usb_cdc_notification *event;
394 
395  if (urb->actual_length < sizeof *event)
396  return;
397 
398  /* SPEED_CHANGE can get split into two 8-byte packets */
399  if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) {
400  dumpspeed(dev, (__le32 *) urb->transfer_buffer);
401  return;
402  }
403 
404  event = urb->transfer_buffer;
405  switch (event->bNotificationType) {
406  case USB_CDC_NOTIFY_NETWORK_CONNECTION:
407  netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n",
408  event->wValue ? "on" : "off");
409  if (event->wValue)
410  netif_carrier_on(dev->net);
411  else
412  netif_carrier_off(dev->net);
413  break;
414  case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */
415  netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n",
416  urb->actual_length);
417  if (urb->actual_length != (sizeof *event + 8))
418  set_bit(EVENT_STS_SPLIT, &dev->flags);
419  else
420  dumpspeed(dev, (__le32 *) &event[1]);
421  break;
422  /* USB_CDC_NOTIFY_RESPONSE_AVAILABLE can happen too (e.g. RNDIS),
423  * but there are no standard formats for the response data.
424  */
425  default:
426  netdev_err(dev->net, "CDC: unexpected notification %02x!\n",
427  event->bNotificationType);
428  break;
429  }
430 }
431 EXPORT_SYMBOL_GPL(usbnet_cdc_status);
432 
433 int usbnet_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
434 {
435  int status;
436  struct cdc_state *info = (void *) &dev->data;
437 
438  BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data)
439  < sizeof(struct cdc_state)));
440 
441  status = usbnet_generic_cdc_bind(dev, intf);
442  if (status < 0)
443  return status;
444 
445  status = usbnet_get_ethernet_addr(dev, info->ether->iMACAddress);
446  if (status < 0) {
447  usb_set_intfdata(info->data, NULL);
448  usb_driver_release_interface(driver_of(intf), info->data);
449  return status;
450  }
451 
452  /* FIXME cdc-ether has some multicast code too, though it complains
453  * in routine cases. info->ether describes the multicast support.
454  * Implement that here, manipulating the cdc filter as needed.
455  */
456  return 0;
457 }
458 EXPORT_SYMBOL_GPL(usbnet_cdc_bind);
459 
460 static int cdc_manage_power(struct usbnet *dev, int on)
461 {
462  dev->intf->needs_remote_wakeup = on;
463  return 0;
464 }
465 
466 static const struct driver_info cdc_info = {
467  .description = "CDC Ethernet Device",
468  .flags = FLAG_ETHER | FLAG_POINTTOPOINT,
469  // .check_connect = cdc_check_connect,
470  .bind = usbnet_cdc_bind,
471  .unbind = usbnet_cdc_unbind,
472  .status = usbnet_cdc_status,
473  .manage_power = cdc_manage_power,
474 };
475 
476 static const struct driver_info wwan_info = {
477  .description = "Mobile Broadband Network Device",
478  .flags = FLAG_WWAN,
479  .bind = usbnet_cdc_bind,
480  .unbind = usbnet_cdc_unbind,
481  .status = usbnet_cdc_status,
482  .manage_power = cdc_manage_power,
483 };
484 
485 /*-------------------------------------------------------------------------*/
486 
487 #define HUAWEI_VENDOR_ID 0x12D1
488 #define NOVATEL_VENDOR_ID 0x1410
489 #define ZTE_VENDOR_ID 0x19D2
490 
491 static const struct usb_device_id products [] = {
492 /*
493  * BLACKLIST !!
494  *
495  * First blacklist any products that are egregiously nonconformant
496  * with the CDC Ethernet specs. Minor braindamage we cope with; when
497  * they're not even trying, needing a separate driver is only the first
498  * of the differences to show up.
499  */
500 
501 #define ZAURUS_MASTER_INTERFACE \
502  .bInterfaceClass = USB_CLASS_COMM, \
503  .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \
504  .bInterfaceProtocol = USB_CDC_PROTO_NONE
505 
506 /* SA-1100 based Sharp Zaurus ("collie"), or compatible;
507  * wire-incompatible with true CDC Ethernet implementations.
508  * (And, it seems, needlessly so...)
509  */
510 {
511  .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
512  | USB_DEVICE_ID_MATCH_DEVICE,
513  .idVendor = 0x04DD,
514  .idProduct = 0x8004,
515  ZAURUS_MASTER_INTERFACE,
516  .driver_info = 0,
517 },
518 
519 /* PXA-25x based Sharp Zaurii. Note that it seems some of these
520  * (later models especially) may have shipped only with firmware
521  * advertising false "CDC MDLM" compatibility ... but we're not
522  * clear which models did that, so for now let's assume the worst.
523  */
524 {
525  .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
526  | USB_DEVICE_ID_MATCH_DEVICE,
527  .idVendor = 0x04DD,
528  .idProduct = 0x8005, /* A-300 */
529  ZAURUS_MASTER_INTERFACE,
530  .driver_info = 0,
531 }, {
532  .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
533  | USB_DEVICE_ID_MATCH_DEVICE,
534  .idVendor = 0x04DD,
535  .idProduct = 0x8006, /* B-500/SL-5600 */
536  ZAURUS_MASTER_INTERFACE,
537  .driver_info = 0,
538 }, {
539  .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
540  | USB_DEVICE_ID_MATCH_DEVICE,
541  .idVendor = 0x04DD,
542  .idProduct = 0x8007, /* C-700 */
543  ZAURUS_MASTER_INTERFACE,
544  .driver_info = 0,
545 }, {
546  .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
547  | USB_DEVICE_ID_MATCH_DEVICE,
548  .idVendor = 0x04DD,
549  .idProduct = 0x9031, /* C-750 C-760 */
550  ZAURUS_MASTER_INTERFACE,
551  .driver_info = 0,
552 }, {
553  .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
554  | USB_DEVICE_ID_MATCH_DEVICE,
555  .idVendor = 0x04DD,
556  .idProduct = 0x9032, /* SL-6000 */
557  ZAURUS_MASTER_INTERFACE,
558  .driver_info = 0,
559 }, {
560  .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
561  | USB_DEVICE_ID_MATCH_DEVICE,
562  .idVendor = 0x04DD,
563  /* reported with some C860 units */
564  .idProduct = 0x9050, /* C-860 */
565  ZAURUS_MASTER_INTERFACE,
566  .driver_info = 0,
567 },
568 
569 /* Olympus has some models with a Zaurus-compatible option.
570  * R-1000 uses a FreeScale i.MXL cpu (ARMv4T)
571  */
572 {
573  .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
574  | USB_DEVICE_ID_MATCH_DEVICE,
575  .idVendor = 0x07B4,
576  .idProduct = 0x0F02, /* R-1000 */
577  ZAURUS_MASTER_INTERFACE,
578  .driver_info = 0,
579 },
580 
581 /* LG Electronics VL600 wants additional headers on every frame */
582 {
583  USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM,
584  USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
585  .driver_info = 0,
586 },
587 
588 /* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */
589 {
590  USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM,
591  USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
592  .driver_info = 0,
593 },
594 
595 /* Novatel USB551L and MC551 - handled by qmi_wwan */
596 {
597  .match_flags = USB_DEVICE_ID_MATCH_VENDOR
598  | USB_DEVICE_ID_MATCH_PRODUCT
599  | USB_DEVICE_ID_MATCH_INT_INFO,
600  .idVendor = NOVATEL_VENDOR_ID,
601  .idProduct = 0xB001,
602  .bInterfaceClass = USB_CLASS_COMM,
603  .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET,
604  .bInterfaceProtocol = USB_CDC_PROTO_NONE,
605  .driver_info = 0,
606 },
607 
608 /* Novatel E362 - handled by qmi_wwan */
609 {
610  .match_flags = USB_DEVICE_ID_MATCH_VENDOR
611  | USB_DEVICE_ID_MATCH_PRODUCT
612  | USB_DEVICE_ID_MATCH_INT_INFO,
613  .idVendor = NOVATEL_VENDOR_ID,
614  .idProduct = 0x9010,
615  .bInterfaceClass = USB_CLASS_COMM,
616  .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET,
617  .bInterfaceProtocol = USB_CDC_PROTO_NONE,
618  .driver_info = 0,
619 },
620 
621 /*
622  * WHITELIST!!!
623  *
624  * CDC Ether uses two interfaces, not necessarily consecutive.
625  * We match the main interface, ignoring the optional device
626  * class so we could handle devices that aren't exclusively
627  * CDC ether.
628  *
629  * NOTE: this match must come AFTER entries blacklisting devices
630  * because of bugs/quirks in a given product (like Zaurus, above).
631  */
632 {
633  /* ZTE (Vodafone) K3805-Z */
634  .match_flags = USB_DEVICE_ID_MATCH_VENDOR
635  | USB_DEVICE_ID_MATCH_PRODUCT
636  | USB_DEVICE_ID_MATCH_INT_INFO,
637  .idVendor = ZTE_VENDOR_ID,
638  .idProduct = 0x1003,
639  .bInterfaceClass = USB_CLASS_COMM,
640  .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET,
641  .bInterfaceProtocol = USB_CDC_PROTO_NONE,
642  .driver_info = (unsigned long)&wwan_info,
643 }, {
644  /* ZTE (Vodafone) K3806-Z */
645  .match_flags = USB_DEVICE_ID_MATCH_VENDOR
646  | USB_DEVICE_ID_MATCH_PRODUCT
647  | USB_DEVICE_ID_MATCH_INT_INFO,
648  .idVendor = ZTE_VENDOR_ID,
649  .idProduct = 0x1015,
650  .bInterfaceClass = USB_CLASS_COMM,
651  .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET,
652  .bInterfaceProtocol = USB_CDC_PROTO_NONE,
653  .driver_info = (unsigned long)&wwan_info,
654 }, {
655  /* ZTE (Vodafone) K4510-Z */
656  .match_flags = USB_DEVICE_ID_MATCH_VENDOR
657  | USB_DEVICE_ID_MATCH_PRODUCT
658  | USB_DEVICE_ID_MATCH_INT_INFO,
659  .idVendor = ZTE_VENDOR_ID,
660  .idProduct = 0x1173,
661  .bInterfaceClass = USB_CLASS_COMM,
662  .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET,
663  .bInterfaceProtocol = USB_CDC_PROTO_NONE,
664  .driver_info = (unsigned long)&wwan_info,
665 }, {
666  /* ZTE (Vodafone) K3770-Z */
667  .match_flags = USB_DEVICE_ID_MATCH_VENDOR
668  | USB_DEVICE_ID_MATCH_PRODUCT
669  | USB_DEVICE_ID_MATCH_INT_INFO,
670  .idVendor = ZTE_VENDOR_ID,
671  .idProduct = 0x1177,
672  .bInterfaceClass = USB_CLASS_COMM,
673  .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET,
674  .bInterfaceProtocol = USB_CDC_PROTO_NONE,
675  .driver_info = (unsigned long)&wwan_info,
676 }, {
677  /* ZTE (Vodafone) K3772-Z */
678  .match_flags = USB_DEVICE_ID_MATCH_VENDOR
679  | USB_DEVICE_ID_MATCH_PRODUCT
680  | USB_DEVICE_ID_MATCH_INT_INFO,
681  .idVendor = ZTE_VENDOR_ID,
682  .idProduct = 0x1181,
683  .bInterfaceClass = USB_CLASS_COMM,
684  .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET,
685  .bInterfaceProtocol = USB_CDC_PROTO_NONE,
686  .driver_info = (unsigned long)&wwan_info,
687 }, {
688  USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
689  USB_CDC_PROTO_NONE),
690  .driver_info = (unsigned long) &cdc_info,
691 }, {
692  USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM,
693  USB_CDC_PROTO_NONE),
694  .driver_info = (unsigned long)&wwan_info,
695 
696 }, {
697  /* Various Huawei modems with a network port like the UMG1831 */
698  .match_flags = USB_DEVICE_ID_MATCH_VENDOR
699  | USB_DEVICE_ID_MATCH_INT_INFO,
700  .idVendor = HUAWEI_VENDOR_ID,
701  .bInterfaceClass = USB_CLASS_COMM,
702  .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET,
703  .bInterfaceProtocol = 255,
704  .driver_info = (unsigned long)&wwan_info,
705 },
706  { }, // END
707 };
708 MODULE_DEVICE_TABLE(usb, products);
709 
710 static struct usb_driver cdc_driver = {
711  .name = "cdc_ether",
712  .id_table = products,
713  .probe = usbnet_probe,
714  .disconnect = usbnet_disconnect,
715  .suspend = usbnet_suspend,
716  .resume = usbnet_resume,
717  .reset_resume = usbnet_resume,
718  .supports_autosuspend = 1,
719  .disable_hub_initiated_lpm = 1,
720 };
721 
722 module_usb_driver(cdc_driver);
723 
724 MODULE_AUTHOR("David Brownell");
725 MODULE_DESCRIPTION("USB CDC Ethernet devices");
726 MODULE_LICENSE("GPL");
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