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, see <http://www.gnu.org/licenses/>.
18 */
19
20 // #define DEBUG // error path messages, extra info
21 // #define VERBOSE // more; success messages
22
23 #include <linux/module.h>
24 #include <linux/netdevice.h>
25 #include <linux/etherdevice.h>
26 #include <linux/ethtool.h>
27 #include <linux/workqueue.h>
28 #include <linux/mii.h>
29 #include <linux/usb.h>
30 #include <linux/usb/cdc.h>
31 #include <linux/usb/usbnet.h>
32
33
34 #if IS_ENABLED(CONFIG_USB_NET_RNDIS_HOST)
35
is_rndis(struct usb_interface_descriptor * desc)36 static int is_rndis(struct usb_interface_descriptor *desc)
37 {
38 return (desc->bInterfaceClass == USB_CLASS_COMM &&
39 desc->bInterfaceSubClass == 2 &&
40 desc->bInterfaceProtocol == 0xff);
41 }
42
is_activesync(struct usb_interface_descriptor * desc)43 static int is_activesync(struct usb_interface_descriptor *desc)
44 {
45 return (desc->bInterfaceClass == USB_CLASS_MISC &&
46 desc->bInterfaceSubClass == 1 &&
47 desc->bInterfaceProtocol == 1);
48 }
49
is_wireless_rndis(struct usb_interface_descriptor * desc)50 static int is_wireless_rndis(struct usb_interface_descriptor *desc)
51 {
52 return (desc->bInterfaceClass == USB_CLASS_WIRELESS_CONTROLLER &&
53 desc->bInterfaceSubClass == 1 &&
54 desc->bInterfaceProtocol == 3);
55 }
56
57 #else
58
59 #define is_rndis(desc) 0
60 #define is_activesync(desc) 0
61 #define is_wireless_rndis(desc) 0
62
63 #endif
64
65 static const u8 mbm_guid[16] = {
66 0xa3, 0x17, 0xa8, 0x8b, 0x04, 0x5e, 0x4f, 0x01,
67 0xa6, 0x07, 0xc0, 0xff, 0xcb, 0x7e, 0x39, 0x2a,
68 };
69
usbnet_cdc_update_filter(struct usbnet * dev)70 static void usbnet_cdc_update_filter(struct usbnet *dev)
71 {
72 struct cdc_state *info = (void *) &dev->data;
73 struct usb_interface *intf = info->control;
74
75 u16 cdc_filter =
76 USB_CDC_PACKET_TYPE_ALL_MULTICAST | USB_CDC_PACKET_TYPE_DIRECTED |
77 USB_CDC_PACKET_TYPE_BROADCAST;
78
79 if (dev->net->flags & IFF_PROMISC)
80 cdc_filter |= USB_CDC_PACKET_TYPE_PROMISCUOUS;
81
82 /* FIXME cdc-ether has some multicast code too, though it complains
83 * in routine cases. info->ether describes the multicast support.
84 * Implement that here, manipulating the cdc filter as needed.
85 */
86
87 usb_control_msg(dev->udev,
88 usb_sndctrlpipe(dev->udev, 0),
89 USB_CDC_SET_ETHERNET_PACKET_FILTER,
90 USB_TYPE_CLASS | USB_RECIP_INTERFACE,
91 cdc_filter,
92 intf->cur_altsetting->desc.bInterfaceNumber,
93 NULL,
94 0,
95 USB_CTRL_SET_TIMEOUT
96 );
97 }
98
99 /* probes control interface, claims data interface, collects the bulk
100 * endpoints, activates data interface (if needed), maybe sets MTU.
101 * all pure cdc, except for certain firmware workarounds, and knowing
102 * that rndis uses one different rule.
103 */
usbnet_generic_cdc_bind(struct usbnet * dev,struct usb_interface * intf)104 int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
105 {
106 u8 *buf = intf->cur_altsetting->extra;
107 int len = intf->cur_altsetting->extralen;
108 struct usb_interface_descriptor *d;
109 struct cdc_state *info = (void *) &dev->data;
110 int status;
111 int rndis;
112 bool android_rndis_quirk = false;
113 struct usb_driver *driver = driver_of(intf);
114 struct usb_cdc_mdlm_desc *desc = NULL;
115 struct usb_cdc_mdlm_detail_desc *detail = NULL;
116
117 if (sizeof(dev->data) < sizeof(*info))
118 return -EDOM;
119
120 /* expect strict spec conformance for the descriptors, but
121 * cope with firmware which stores them in the wrong place
122 */
123 if (len == 0 && dev->udev->actconfig->extralen) {
124 /* Motorola SB4100 (and others: Brad Hards says it's
125 * from a Broadcom design) put CDC descriptors here
126 */
127 buf = dev->udev->actconfig->extra;
128 len = dev->udev->actconfig->extralen;
129 dev_dbg(&intf->dev, "CDC descriptors on config\n");
130 }
131
132 /* Maybe CDC descriptors are after the endpoint? This bug has
133 * been seen on some 2Wire Inc RNDIS-ish products.
134 */
135 if (len == 0) {
136 struct usb_host_endpoint *hep;
137
138 hep = intf->cur_altsetting->endpoint;
139 if (hep) {
140 buf = hep->extra;
141 len = hep->extralen;
142 }
143 if (len)
144 dev_dbg(&intf->dev,
145 "CDC descriptors on endpoint\n");
146 }
147
148 /* this assumes that if there's a non-RNDIS vendor variant
149 * of cdc-acm, it'll fail RNDIS requests cleanly.
150 */
151 rndis = (is_rndis(&intf->cur_altsetting->desc) ||
152 is_activesync(&intf->cur_altsetting->desc) ||
153 is_wireless_rndis(&intf->cur_altsetting->desc));
154
155 memset(info, 0, sizeof(*info));
156 info->control = intf;
157 while (len > 3) {
158 if (buf[1] != USB_DT_CS_INTERFACE)
159 goto next_desc;
160
161 /* use bDescriptorSubType to identify the CDC descriptors.
162 * We expect devices with CDC header and union descriptors.
163 * For CDC Ethernet we need the ethernet descriptor.
164 * For RNDIS, ignore two (pointless) CDC modem descriptors
165 * in favor of a complicated OID-based RPC scheme doing what
166 * CDC Ethernet achieves with a simple descriptor.
167 */
168 switch (buf[2]) {
169 case USB_CDC_HEADER_TYPE:
170 if (info->header) {
171 dev_dbg(&intf->dev, "extra CDC header\n");
172 goto bad_desc;
173 }
174 if (len < sizeof(struct usb_cdc_header_desc))
175 break;
176 info->header = (void *) buf;
177 if (info->header->bLength != sizeof(*info->header)) {
178 dev_dbg(&intf->dev, "CDC header len %u\n",
179 info->header->bLength);
180 goto bad_desc;
181 }
182 break;
183 case USB_CDC_ACM_TYPE:
184 /* paranoia: disambiguate a "real" vendor-specific
185 * modem interface from an RNDIS non-modem.
186 */
187 if (rndis) {
188 struct usb_cdc_acm_descriptor *acm;
189 if (len < sizeof(struct usb_cdc_acm_descriptor))
190 break;
191
192 acm = (void *) buf;
193 if (acm->bmCapabilities) {
194 dev_dbg(&intf->dev,
195 "ACM capabilities %02x, "
196 "not really RNDIS?\n",
197 acm->bmCapabilities);
198 goto bad_desc;
199 }
200 }
201 break;
202 case USB_CDC_UNION_TYPE:
203 if (info->u) {
204 dev_dbg(&intf->dev, "extra CDC union\n");
205 goto bad_desc;
206 }
207 if (len < sizeof(struct usb_cdc_union_desc))
208 break;
209 info->u = (void *) buf;
210 if (info->u->bLength != sizeof(*info->u)) {
211 dev_dbg(&intf->dev, "CDC union len %u\n",
212 info->u->bLength);
213 goto bad_desc;
214 }
215
216 /* we need a master/control interface (what we're
217 * probed with) and a slave/data interface; union
218 * descriptors sort this all out.
219 */
220 info->control = usb_ifnum_to_if(dev->udev,
221 info->u->bMasterInterface0);
222 info->data = usb_ifnum_to_if(dev->udev,
223 info->u->bSlaveInterface0);
224 if (!info->control || !info->data) {
225 dev_dbg(&intf->dev,
226 "master #%u/%p slave #%u/%p\n",
227 info->u->bMasterInterface0,
228 info->control,
229 info->u->bSlaveInterface0,
230 info->data);
231 /* fall back to hard-wiring for RNDIS */
232 if (rndis) {
233 android_rndis_quirk = true;
234 goto next_desc;
235 }
236 goto bad_desc;
237 }
238 if (info->control != intf) {
239 dev_dbg(&intf->dev, "bogus CDC Union\n");
240 /* Ambit USB Cable Modem (and maybe others)
241 * interchanges master and slave interface.
242 */
243 if (info->data == intf) {
244 info->data = info->control;
245 info->control = intf;
246 } else
247 goto bad_desc;
248 }
249
250 /* some devices merge these - skip class check */
251 if (info->control == info->data)
252 goto next_desc;
253
254 /* a data interface altsetting does the real i/o */
255 d = &info->data->cur_altsetting->desc;
256 if (d->bInterfaceClass != USB_CLASS_CDC_DATA) {
257 dev_dbg(&intf->dev, "slave class %u\n",
258 d->bInterfaceClass);
259 goto bad_desc;
260 }
261 break;
262 case USB_CDC_ETHERNET_TYPE:
263 if (info->ether) {
264 dev_dbg(&intf->dev, "extra CDC ether\n");
265 goto bad_desc;
266 }
267 if (len < sizeof(struct usb_cdc_ether_desc))
268 break;
269 info->ether = (void *) buf;
270 if (info->ether->bLength != sizeof(*info->ether)) {
271 dev_dbg(&intf->dev, "CDC ether len %u\n",
272 info->ether->bLength);
273 goto bad_desc;
274 }
275 dev->hard_mtu = le16_to_cpu(
276 info->ether->wMaxSegmentSize);
277 /* because of Zaurus, we may be ignoring the host
278 * side link address we were given.
279 */
280 break;
281 case USB_CDC_MDLM_TYPE:
282 if (desc) {
283 dev_dbg(&intf->dev, "extra MDLM descriptor\n");
284 goto bad_desc;
285 }
286 desc = (void *)buf;
287
288 if (desc->bLength != sizeof(*desc))
289 goto bad_desc;
290
291 if (memcmp(&desc->bGUID, mbm_guid, 16))
292 goto bad_desc;
293 break;
294 case USB_CDC_MDLM_DETAIL_TYPE:
295 if (detail) {
296 dev_dbg(&intf->dev, "extra MDLM detail descriptor\n");
297 goto bad_desc;
298 }
299
300 detail = (void *)buf;
301
302 if (detail->bGuidDescriptorType == 0) {
303 if (detail->bLength < (sizeof(*detail) + 1))
304 goto bad_desc;
305 } else
306 goto bad_desc;
307 break;
308 }
309 next_desc:
310 len -= buf[0]; /* bLength */
311 buf += buf[0];
312 }
313
314 /* Microsoft ActiveSync based and some regular RNDIS devices lack the
315 * CDC descriptors, so we'll hard-wire the interfaces and not check
316 * for descriptors.
317 *
318 * Some Android RNDIS devices have a CDC Union descriptor pointing
319 * to non-existing interfaces. Ignore that and attempt the same
320 * hard-wired 0 and 1 interfaces.
321 */
322 if (rndis && (!info->u || android_rndis_quirk)) {
323 info->control = usb_ifnum_to_if(dev->udev, 0);
324 info->data = usb_ifnum_to_if(dev->udev, 1);
325 if (!info->control || !info->data || info->control != intf) {
326 dev_dbg(&intf->dev,
327 "rndis: master #0/%p slave #1/%p\n",
328 info->control,
329 info->data);
330 goto bad_desc;
331 }
332
333 } else if (!info->header || !info->u || (!rndis && !info->ether)) {
334 dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n",
335 info->header ? "" : "header ",
336 info->u ? "" : "union ",
337 info->ether ? "" : "ether ");
338 goto bad_desc;
339 }
340
341 /* claim data interface and set it up ... with side effects.
342 * network traffic can't flow until an altsetting is enabled.
343 */
344 if (info->data != info->control) {
345 status = usb_driver_claim_interface(driver, info->data, dev);
346 if (status < 0)
347 return status;
348 }
349 status = usbnet_get_endpoints(dev, info->data);
350 if (status < 0) {
351 /* ensure immediate exit from usbnet_disconnect */
352 usb_set_intfdata(info->data, NULL);
353 if (info->data != info->control)
354 usb_driver_release_interface(driver, info->data);
355 return status;
356 }
357
358 /* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */
359 if (info->data != info->control)
360 dev->status = NULL;
361 if (info->control->cur_altsetting->desc.bNumEndpoints == 1) {
362 struct usb_endpoint_descriptor *desc;
363
364 dev->status = &info->control->cur_altsetting->endpoint [0];
365 desc = &dev->status->desc;
366 if (!usb_endpoint_is_int_in(desc) ||
367 (le16_to_cpu(desc->wMaxPacketSize)
368 < sizeof(struct usb_cdc_notification)) ||
369 !desc->bInterval) {
370 dev_dbg(&intf->dev, "bad notification endpoint\n");
371 dev->status = NULL;
372 }
373 }
374 if (rndis && !dev->status) {
375 dev_dbg(&intf->dev, "missing RNDIS status endpoint\n");
376 usb_set_intfdata(info->data, NULL);
377 usb_driver_release_interface(driver, info->data);
378 return -ENODEV;
379 }
380
381 /* Some devices don't initialise properly. In particular
382 * the packet filter is not reset. There are devices that
383 * don't do reset all the way. So the packet filter should
384 * be set to a sane initial value.
385 */
386 usbnet_cdc_update_filter(dev);
387
388 return 0;
389
390 bad_desc:
391 dev_info(&dev->udev->dev, "bad CDC descriptors\n");
392 return -ENODEV;
393 }
394 EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind);
395
usbnet_cdc_unbind(struct usbnet * dev,struct usb_interface * intf)396 void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf)
397 {
398 struct cdc_state *info = (void *) &dev->data;
399 struct usb_driver *driver = driver_of(intf);
400
401 /* combined interface - nothing to do */
402 if (info->data == info->control)
403 return;
404
405 /* disconnect master --> disconnect slave */
406 if (intf == info->control && info->data) {
407 /* ensure immediate exit from usbnet_disconnect */
408 usb_set_intfdata(info->data, NULL);
409 usb_driver_release_interface(driver, info->data);
410 info->data = NULL;
411 }
412
413 /* and vice versa (just in case) */
414 else if (intf == info->data && info->control) {
415 /* ensure immediate exit from usbnet_disconnect */
416 usb_set_intfdata(info->control, NULL);
417 usb_driver_release_interface(driver, info->control);
418 info->control = NULL;
419 }
420 }
421 EXPORT_SYMBOL_GPL(usbnet_cdc_unbind);
422
423 /* Communications Device Class, Ethernet Control model
424 *
425 * Takes two interfaces. The DATA interface is inactive till an altsetting
426 * is selected. Configuration data includes class descriptors. There's
427 * an optional status endpoint on the control interface.
428 *
429 * This should interop with whatever the 2.4 "CDCEther.c" driver
430 * (by Brad Hards) talked with, with more functionality.
431 */
432
dumpspeed(struct usbnet * dev,__le32 * speeds)433 static void dumpspeed(struct usbnet *dev, __le32 *speeds)
434 {
435 netif_info(dev, timer, dev->net,
436 "link speeds: %u kbps up, %u kbps down\n",
437 __le32_to_cpu(speeds[0]) / 1000,
438 __le32_to_cpu(speeds[1]) / 1000);
439 }
440
usbnet_cdc_status(struct usbnet * dev,struct urb * urb)441 void usbnet_cdc_status(struct usbnet *dev, struct urb *urb)
442 {
443 struct usb_cdc_notification *event;
444
445 if (urb->actual_length < sizeof(*event))
446 return;
447
448 /* SPEED_CHANGE can get split into two 8-byte packets */
449 if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) {
450 dumpspeed(dev, (__le32 *) urb->transfer_buffer);
451 return;
452 }
453
454 event = urb->transfer_buffer;
455 switch (event->bNotificationType) {
456 case USB_CDC_NOTIFY_NETWORK_CONNECTION:
457 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n",
458 event->wValue ? "on" : "off");
459 usbnet_link_change(dev, !!event->wValue, 0);
460 break;
461 case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */
462 netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n",
463 urb->actual_length);
464 if (urb->actual_length != (sizeof(*event) + 8))
465 set_bit(EVENT_STS_SPLIT, &dev->flags);
466 else
467 dumpspeed(dev, (__le32 *) &event[1]);
468 break;
469 /* USB_CDC_NOTIFY_RESPONSE_AVAILABLE can happen too (e.g. RNDIS),
470 * but there are no standard formats for the response data.
471 */
472 default:
473 netdev_err(dev->net, "CDC: unexpected notification %02x!\n",
474 event->bNotificationType);
475 break;
476 }
477 }
478 EXPORT_SYMBOL_GPL(usbnet_cdc_status);
479
usbnet_cdc_bind(struct usbnet * dev,struct usb_interface * intf)480 int usbnet_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
481 {
482 int status;
483 struct cdc_state *info = (void *) &dev->data;
484
485 BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data)
486 < sizeof(struct cdc_state)));
487
488 status = usbnet_generic_cdc_bind(dev, intf);
489 if (status < 0)
490 return status;
491
492 status = usbnet_get_ethernet_addr(dev, info->ether->iMACAddress);
493 if (status < 0) {
494 usb_set_intfdata(info->data, NULL);
495 usb_driver_release_interface(driver_of(intf), info->data);
496 return status;
497 }
498
499 return 0;
500 }
501 EXPORT_SYMBOL_GPL(usbnet_cdc_bind);
502
503 static const struct driver_info cdc_info = {
504 .description = "CDC Ethernet Device",
505 .flags = FLAG_ETHER | FLAG_POINTTOPOINT,
506 .bind = usbnet_cdc_bind,
507 .unbind = usbnet_cdc_unbind,
508 .status = usbnet_cdc_status,
509 .set_rx_mode = usbnet_cdc_update_filter,
510 .manage_power = usbnet_manage_power,
511 };
512
513 static const struct driver_info wwan_info = {
514 .description = "Mobile Broadband Network Device",
515 .flags = FLAG_WWAN,
516 .bind = usbnet_cdc_bind,
517 .unbind = usbnet_cdc_unbind,
518 .status = usbnet_cdc_status,
519 .set_rx_mode = usbnet_cdc_update_filter,
520 .manage_power = usbnet_manage_power,
521 };
522
523 /*-------------------------------------------------------------------------*/
524
525 #define HUAWEI_VENDOR_ID 0x12D1
526 #define NOVATEL_VENDOR_ID 0x1410
527 #define ZTE_VENDOR_ID 0x19D2
528 #define DELL_VENDOR_ID 0x413C
529 #define REALTEK_VENDOR_ID 0x0bda
530 #define SAMSUNG_VENDOR_ID 0x04e8
531
532 static const struct usb_device_id products[] = {
533 /* BLACKLIST !!
534 *
535 * First blacklist any products that are egregiously nonconformant
536 * with the CDC Ethernet specs. Minor braindamage we cope with; when
537 * they're not even trying, needing a separate driver is only the first
538 * of the differences to show up.
539 */
540
541 #define ZAURUS_MASTER_INTERFACE \
542 .bInterfaceClass = USB_CLASS_COMM, \
543 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \
544 .bInterfaceProtocol = USB_CDC_PROTO_NONE
545
546 /* SA-1100 based Sharp Zaurus ("collie"), or compatible;
547 * wire-incompatible with true CDC Ethernet implementations.
548 * (And, it seems, needlessly so...)
549 */
550 {
551 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
552 | USB_DEVICE_ID_MATCH_DEVICE,
553 .idVendor = 0x04DD,
554 .idProduct = 0x8004,
555 ZAURUS_MASTER_INTERFACE,
556 .driver_info = 0,
557 },
558
559 /* PXA-25x based Sharp Zaurii. Note that it seems some of these
560 * (later models especially) may have shipped only with firmware
561 * advertising false "CDC MDLM" compatibility ... but we're not
562 * clear which models did that, so for now let's assume the worst.
563 */
564 {
565 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
566 | USB_DEVICE_ID_MATCH_DEVICE,
567 .idVendor = 0x04DD,
568 .idProduct = 0x8005, /* A-300 */
569 ZAURUS_MASTER_INTERFACE,
570 .driver_info = 0,
571 }, {
572 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
573 | USB_DEVICE_ID_MATCH_DEVICE,
574 .idVendor = 0x04DD,
575 .idProduct = 0x8006, /* B-500/SL-5600 */
576 ZAURUS_MASTER_INTERFACE,
577 .driver_info = 0,
578 }, {
579 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
580 | USB_DEVICE_ID_MATCH_DEVICE,
581 .idVendor = 0x04DD,
582 .idProduct = 0x8007, /* C-700 */
583 ZAURUS_MASTER_INTERFACE,
584 .driver_info = 0,
585 }, {
586 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
587 | USB_DEVICE_ID_MATCH_DEVICE,
588 .idVendor = 0x04DD,
589 .idProduct = 0x9031, /* C-750 C-760 */
590 ZAURUS_MASTER_INTERFACE,
591 .driver_info = 0,
592 }, {
593 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
594 | USB_DEVICE_ID_MATCH_DEVICE,
595 .idVendor = 0x04DD,
596 .idProduct = 0x9032, /* SL-6000 */
597 ZAURUS_MASTER_INTERFACE,
598 .driver_info = 0,
599 }, {
600 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
601 | USB_DEVICE_ID_MATCH_DEVICE,
602 .idVendor = 0x04DD,
603 /* reported with some C860 units */
604 .idProduct = 0x9050, /* C-860 */
605 ZAURUS_MASTER_INTERFACE,
606 .driver_info = 0,
607 },
608
609 /* Olympus has some models with a Zaurus-compatible option.
610 * R-1000 uses a FreeScale i.MXL cpu (ARMv4T)
611 */
612 {
613 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
614 | USB_DEVICE_ID_MATCH_DEVICE,
615 .idVendor = 0x07B4,
616 .idProduct = 0x0F02, /* R-1000 */
617 ZAURUS_MASTER_INTERFACE,
618 .driver_info = 0,
619 },
620
621 /* LG Electronics VL600 wants additional headers on every frame */
622 {
623 USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM,
624 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
625 .driver_info = 0,
626 },
627
628 /* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */
629 {
630 USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM,
631 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
632 .driver_info = 0,
633 },
634
635 /* Novatel USB551L and MC551 - handled by qmi_wwan */
636 {
637 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0xB001, USB_CLASS_COMM,
638 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
639 .driver_info = 0,
640 },
641
642 /* Novatel E362 - handled by qmi_wwan */
643 {
644 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9010, USB_CLASS_COMM,
645 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
646 .driver_info = 0,
647 },
648
649 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */
650 {
651 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8195, USB_CLASS_COMM,
652 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
653 .driver_info = 0,
654 },
655
656 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */
657 {
658 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8196, USB_CLASS_COMM,
659 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
660 .driver_info = 0,
661 },
662
663 /* Dell Wireless 5804 (Novatel E371) - handled by qmi_wwan */
664 {
665 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x819b, USB_CLASS_COMM,
666 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
667 .driver_info = 0,
668 },
669
670 /* Novatel Expedite E371 - handled by qmi_wwan */
671 {
672 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9011, USB_CLASS_COMM,
673 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
674 .driver_info = 0,
675 },
676
677 /* AnyDATA ADU960S - handled by qmi_wwan */
678 {
679 USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, USB_CLASS_COMM,
680 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
681 .driver_info = 0,
682 },
683
684 /* Huawei E1820 - handled by qmi_wwan */
685 {
686 USB_DEVICE_INTERFACE_NUMBER(HUAWEI_VENDOR_ID, 0x14ac, 1),
687 .driver_info = 0,
688 },
689
690 /* Realtek RTL8152 Based USB 2.0 Ethernet Adapters */
691 {
692 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8152, USB_CLASS_COMM,
693 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
694 .driver_info = 0,
695 },
696
697 /* Realtek RTL8153 Based USB 3.0 Ethernet Adapters */
698 {
699 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8153, USB_CLASS_COMM,
700 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
701 .driver_info = 0,
702 },
703
704 /* Samsung USB Ethernet Adapters */
705 {
706 USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, 0xa101, USB_CLASS_COMM,
707 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
708 .driver_info = 0,
709 },
710
711 /* WHITELIST!!!
712 *
713 * CDC Ether uses two interfaces, not necessarily consecutive.
714 * We match the main interface, ignoring the optional device
715 * class so we could handle devices that aren't exclusively
716 * CDC ether.
717 *
718 * NOTE: this match must come AFTER entries blacklisting devices
719 * because of bugs/quirks in a given product (like Zaurus, above).
720 */
721 {
722 /* ZTE (Vodafone) K3805-Z */
723 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1003, USB_CLASS_COMM,
724 USB_CDC_SUBCLASS_ETHERNET,
725 USB_CDC_PROTO_NONE),
726 .driver_info = (unsigned long)&wwan_info,
727 }, {
728 /* ZTE (Vodafone) K3806-Z */
729 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1015, USB_CLASS_COMM,
730 USB_CDC_SUBCLASS_ETHERNET,
731 USB_CDC_PROTO_NONE),
732 .driver_info = (unsigned long)&wwan_info,
733 }, {
734 /* ZTE (Vodafone) K4510-Z */
735 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1173, USB_CLASS_COMM,
736 USB_CDC_SUBCLASS_ETHERNET,
737 USB_CDC_PROTO_NONE),
738 .driver_info = (unsigned long)&wwan_info,
739 }, {
740 /* ZTE (Vodafone) K3770-Z */
741 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1177, USB_CLASS_COMM,
742 USB_CDC_SUBCLASS_ETHERNET,
743 USB_CDC_PROTO_NONE),
744 .driver_info = (unsigned long)&wwan_info,
745 }, {
746 /* ZTE (Vodafone) K3772-Z */
747 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1181, USB_CLASS_COMM,
748 USB_CDC_SUBCLASS_ETHERNET,
749 USB_CDC_PROTO_NONE),
750 .driver_info = (unsigned long)&wwan_info,
751 }, {
752 /* Telit modules */
753 USB_VENDOR_AND_INTERFACE_INFO(0x1bc7, USB_CLASS_COMM,
754 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
755 .driver_info = (kernel_ulong_t) &wwan_info,
756 }, {
757 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
758 USB_CDC_PROTO_NONE),
759 .driver_info = (unsigned long) &cdc_info,
760 }, {
761 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM,
762 USB_CDC_PROTO_NONE),
763 .driver_info = (unsigned long)&wwan_info,
764
765 }, {
766 /* Various Huawei modems with a network port like the UMG1831 */
767 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_COMM,
768 USB_CDC_SUBCLASS_ETHERNET, 255),
769 .driver_info = (unsigned long)&wwan_info,
770 },
771 { }, /* END */
772 };
773 MODULE_DEVICE_TABLE(usb, products);
774
775 static struct usb_driver cdc_driver = {
776 .name = "cdc_ether",
777 .id_table = products,
778 .probe = usbnet_probe,
779 .disconnect = usbnet_disconnect,
780 .suspend = usbnet_suspend,
781 .resume = usbnet_resume,
782 .reset_resume = usbnet_resume,
783 .supports_autosuspend = 1,
784 .disable_hub_initiated_lpm = 1,
785 };
786
787 module_usb_driver(cdc_driver);
788
789 MODULE_AUTHOR("David Brownell");
790 MODULE_DESCRIPTION("USB CDC Ethernet devices");
791 MODULE_LICENSE("GPL");
792