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 struct net_device *net = dev->net;
75
76 u16 cdc_filter = USB_CDC_PACKET_TYPE_DIRECTED
77 | USB_CDC_PACKET_TYPE_BROADCAST;
78
79 /* filtering on the device is an optional feature and not worth
80 * the hassle so we just roughly care about snooping and if any
81 * multicast is requested, we take every multicast
82 */
83 if (net->flags & IFF_PROMISC)
84 cdc_filter |= USB_CDC_PACKET_TYPE_PROMISCUOUS;
85 if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI))
86 cdc_filter |= USB_CDC_PACKET_TYPE_ALL_MULTICAST;
87
88 usb_control_msg(dev->udev,
89 usb_sndctrlpipe(dev->udev, 0),
90 USB_CDC_SET_ETHERNET_PACKET_FILTER,
91 USB_TYPE_CLASS | USB_RECIP_INTERFACE,
92 cdc_filter,
93 intf->cur_altsetting->desc.bInterfaceNumber,
94 NULL,
95 0,
96 USB_CTRL_SET_TIMEOUT
97 );
98 }
99
100 /* probes control interface, claims data interface, collects the bulk
101 * endpoints, activates data interface (if needed), maybe sets MTU.
102 * all pure cdc, except for certain firmware workarounds, and knowing
103 * that rndis uses one different rule.
104 */
usbnet_generic_cdc_bind(struct usbnet * dev,struct usb_interface * intf)105 int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
106 {
107 u8 *buf = intf->cur_altsetting->extra;
108 int len = intf->cur_altsetting->extralen;
109 struct usb_interface_descriptor *d;
110 struct cdc_state *info = (void *) &dev->data;
111 int status;
112 int rndis;
113 bool android_rndis_quirk = false;
114 struct usb_driver *driver = driver_of(intf);
115 struct usb_cdc_parsed_header header;
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
158 cdc_parse_cdc_header(&header, intf, buf, len);
159
160 info->u = header.usb_cdc_union_desc;
161 info->header = header.usb_cdc_header_desc;
162 info->ether = header.usb_cdc_ether_desc;
163 if (!info->u) {
164 if (rndis)
165 goto skip;
166 else /* in that case a quirk is mandatory */
167 goto bad_desc;
168 }
169 /* we need a master/control interface (what we're
170 * probed with) and a slave/data interface; union
171 * descriptors sort this all out.
172 */
173 info->control = usb_ifnum_to_if(dev->udev,
174 info->u->bMasterInterface0);
175 info->data = usb_ifnum_to_if(dev->udev,
176 info->u->bSlaveInterface0);
177 if (!info->control || !info->data) {
178 dev_dbg(&intf->dev,
179 "master #%u/%p slave #%u/%p\n",
180 info->u->bMasterInterface0,
181 info->control,
182 info->u->bSlaveInterface0,
183 info->data);
184 /* fall back to hard-wiring for RNDIS */
185 if (rndis) {
186 android_rndis_quirk = true;
187 goto skip;
188 }
189 goto bad_desc;
190 }
191 if (info->control != intf) {
192 dev_dbg(&intf->dev, "bogus CDC Union\n");
193 /* Ambit USB Cable Modem (and maybe others)
194 * interchanges master and slave interface.
195 */
196 if (info->data == intf) {
197 info->data = info->control;
198 info->control = intf;
199 } else
200 goto bad_desc;
201 }
202
203 /* some devices merge these - skip class check */
204 if (info->control == info->data)
205 goto skip;
206
207 /* a data interface altsetting does the real i/o */
208 d = &info->data->cur_altsetting->desc;
209 if (d->bInterfaceClass != USB_CLASS_CDC_DATA) {
210 dev_dbg(&intf->dev, "slave class %u\n",
211 d->bInterfaceClass);
212 goto bad_desc;
213 }
214 skip:
215 /* Communcation class functions with bmCapabilities are not
216 * RNDIS. But some Wireless class RNDIS functions use
217 * bmCapabilities for their own purpose. The failsafe is
218 * therefore applied only to Communication class RNDIS
219 * functions. The rndis test is redundant, but a cheap
220 * optimization.
221 */
222 if (rndis && is_rndis(&intf->cur_altsetting->desc) &&
223 header.usb_cdc_acm_descriptor &&
224 header.usb_cdc_acm_descriptor->bmCapabilities) {
225 dev_dbg(&intf->dev,
226 "ACM capabilities %02x, not really RNDIS?\n",
227 header.usb_cdc_acm_descriptor->bmCapabilities);
228 goto bad_desc;
229 }
230
231 if (header.usb_cdc_ether_desc && info->ether->wMaxSegmentSize) {
232 dev->hard_mtu = le16_to_cpu(info->ether->wMaxSegmentSize);
233 /* because of Zaurus, we may be ignoring the host
234 * side link address we were given.
235 */
236 }
237
238 if (header.usb_cdc_mdlm_desc &&
239 memcmp(header.usb_cdc_mdlm_desc->bGUID, mbm_guid, 16)) {
240 dev_dbg(&intf->dev, "GUID doesn't match\n");
241 goto bad_desc;
242 }
243
244 if (header.usb_cdc_mdlm_detail_desc &&
245 header.usb_cdc_mdlm_detail_desc->bLength <
246 (sizeof(struct usb_cdc_mdlm_detail_desc) + 1)) {
247 dev_dbg(&intf->dev, "Descriptor too short\n");
248 goto bad_desc;
249 }
250
251
252
253 /* Microsoft ActiveSync based and some regular RNDIS devices lack the
254 * CDC descriptors, so we'll hard-wire the interfaces and not check
255 * for descriptors.
256 *
257 * Some Android RNDIS devices have a CDC Union descriptor pointing
258 * to non-existing interfaces. Ignore that and attempt the same
259 * hard-wired 0 and 1 interfaces.
260 */
261 if (rndis && (!info->u || android_rndis_quirk)) {
262 info->control = usb_ifnum_to_if(dev->udev, 0);
263 info->data = usb_ifnum_to_if(dev->udev, 1);
264 if (!info->control || !info->data || info->control != intf) {
265 dev_dbg(&intf->dev,
266 "rndis: master #0/%p slave #1/%p\n",
267 info->control,
268 info->data);
269 goto bad_desc;
270 }
271
272 } else if (!info->header || (!rndis && !info->ether)) {
273 dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n",
274 info->header ? "" : "header ",
275 info->u ? "" : "union ",
276 info->ether ? "" : "ether ");
277 goto bad_desc;
278 }
279
280 /* claim data interface and set it up ... with side effects.
281 * network traffic can't flow until an altsetting is enabled.
282 */
283 if (info->data != info->control) {
284 status = usb_driver_claim_interface(driver, info->data, dev);
285 if (status < 0)
286 return status;
287 }
288 status = usbnet_get_endpoints(dev, info->data);
289 if (status < 0) {
290 /* ensure immediate exit from usbnet_disconnect */
291 usb_set_intfdata(info->data, NULL);
292 if (info->data != info->control)
293 usb_driver_release_interface(driver, info->data);
294 return status;
295 }
296
297 /* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */
298 if (info->data != info->control)
299 dev->status = NULL;
300 if (info->control->cur_altsetting->desc.bNumEndpoints == 1) {
301 struct usb_endpoint_descriptor *desc;
302
303 dev->status = &info->control->cur_altsetting->endpoint [0];
304 desc = &dev->status->desc;
305 if (!usb_endpoint_is_int_in(desc) ||
306 (le16_to_cpu(desc->wMaxPacketSize)
307 < sizeof(struct usb_cdc_notification)) ||
308 !desc->bInterval) {
309 dev_dbg(&intf->dev, "bad notification endpoint\n");
310 dev->status = NULL;
311 }
312 }
313 if (rndis && !dev->status) {
314 dev_dbg(&intf->dev, "missing RNDIS status endpoint\n");
315 usb_set_intfdata(info->data, NULL);
316 usb_driver_release_interface(driver, info->data);
317 return -ENODEV;
318 }
319
320 /* Some devices don't initialise properly. In particular
321 * the packet filter is not reset. There are devices that
322 * don't do reset all the way. So the packet filter should
323 * be set to a sane initial value.
324 */
325 usbnet_cdc_update_filter(dev);
326
327 return 0;
328
329 bad_desc:
330 dev_info(&dev->udev->dev, "bad CDC descriptors\n");
331 return -ENODEV;
332 }
333 EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind);
334
usbnet_cdc_unbind(struct usbnet * dev,struct usb_interface * intf)335 void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf)
336 {
337 struct cdc_state *info = (void *) &dev->data;
338 struct usb_driver *driver = driver_of(intf);
339
340 /* combined interface - nothing to do */
341 if (info->data == info->control)
342 return;
343
344 /* disconnect master --> disconnect slave */
345 if (intf == info->control && info->data) {
346 /* ensure immediate exit from usbnet_disconnect */
347 usb_set_intfdata(info->data, NULL);
348 usb_driver_release_interface(driver, info->data);
349 info->data = NULL;
350 }
351
352 /* and vice versa (just in case) */
353 else if (intf == info->data && info->control) {
354 /* ensure immediate exit from usbnet_disconnect */
355 usb_set_intfdata(info->control, NULL);
356 usb_driver_release_interface(driver, info->control);
357 info->control = NULL;
358 }
359 }
360 EXPORT_SYMBOL_GPL(usbnet_cdc_unbind);
361
362 /* Communications Device Class, Ethernet Control model
363 *
364 * Takes two interfaces. The DATA interface is inactive till an altsetting
365 * is selected. Configuration data includes class descriptors. There's
366 * an optional status endpoint on the control interface.
367 *
368 * This should interop with whatever the 2.4 "CDCEther.c" driver
369 * (by Brad Hards) talked with, with more functionality.
370 */
371
dumpspeed(struct usbnet * dev,__le32 * speeds)372 static void dumpspeed(struct usbnet *dev, __le32 *speeds)
373 {
374 netif_info(dev, timer, dev->net,
375 "link speeds: %u kbps up, %u kbps down\n",
376 __le32_to_cpu(speeds[0]) / 1000,
377 __le32_to_cpu(speeds[1]) / 1000);
378 }
379
usbnet_cdc_status(struct usbnet * dev,struct urb * urb)380 void usbnet_cdc_status(struct usbnet *dev, struct urb *urb)
381 {
382 struct usb_cdc_notification *event;
383
384 if (urb->actual_length < sizeof(*event))
385 return;
386
387 /* SPEED_CHANGE can get split into two 8-byte packets */
388 if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) {
389 dumpspeed(dev, (__le32 *) urb->transfer_buffer);
390 return;
391 }
392
393 event = urb->transfer_buffer;
394 switch (event->bNotificationType) {
395 case USB_CDC_NOTIFY_NETWORK_CONNECTION:
396 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n",
397 event->wValue ? "on" : "off");
398 usbnet_link_change(dev, !!event->wValue, 0);
399 break;
400 case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */
401 netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n",
402 urb->actual_length);
403 if (urb->actual_length != (sizeof(*event) + 8))
404 set_bit(EVENT_STS_SPLIT, &dev->flags);
405 else
406 dumpspeed(dev, (__le32 *) &event[1]);
407 break;
408 /* USB_CDC_NOTIFY_RESPONSE_AVAILABLE can happen too (e.g. RNDIS),
409 * but there are no standard formats for the response data.
410 */
411 default:
412 netdev_err(dev->net, "CDC: unexpected notification %02x!\n",
413 event->bNotificationType);
414 break;
415 }
416 }
417 EXPORT_SYMBOL_GPL(usbnet_cdc_status);
418
usbnet_cdc_bind(struct usbnet * dev,struct usb_interface * intf)419 int usbnet_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
420 {
421 int status;
422 struct cdc_state *info = (void *) &dev->data;
423
424 BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data)
425 < sizeof(struct cdc_state)));
426
427 status = usbnet_generic_cdc_bind(dev, intf);
428 if (status < 0)
429 return status;
430
431 status = usbnet_get_ethernet_addr(dev, info->ether->iMACAddress);
432 if (status < 0) {
433 usb_set_intfdata(info->data, NULL);
434 usb_driver_release_interface(driver_of(intf), info->data);
435 return status;
436 }
437
438 return 0;
439 }
440 EXPORT_SYMBOL_GPL(usbnet_cdc_bind);
441
442 static const struct driver_info cdc_info = {
443 .description = "CDC Ethernet Device",
444 .flags = FLAG_ETHER | FLAG_POINTTOPOINT,
445 .bind = usbnet_cdc_bind,
446 .unbind = usbnet_cdc_unbind,
447 .status = usbnet_cdc_status,
448 .set_rx_mode = usbnet_cdc_update_filter,
449 .manage_power = usbnet_manage_power,
450 };
451
452 static const struct driver_info wwan_info = {
453 .description = "Mobile Broadband Network Device",
454 .flags = FLAG_WWAN,
455 .bind = usbnet_cdc_bind,
456 .unbind = usbnet_cdc_unbind,
457 .status = usbnet_cdc_status,
458 .set_rx_mode = usbnet_cdc_update_filter,
459 .manage_power = usbnet_manage_power,
460 };
461
462 /*-------------------------------------------------------------------------*/
463
464 #define HUAWEI_VENDOR_ID 0x12D1
465 #define NOVATEL_VENDOR_ID 0x1410
466 #define ZTE_VENDOR_ID 0x19D2
467 #define DELL_VENDOR_ID 0x413C
468 #define REALTEK_VENDOR_ID 0x0bda
469 #define SAMSUNG_VENDOR_ID 0x04e8
470 #define LENOVO_VENDOR_ID 0x17ef
471 #define LINKSYS_VENDOR_ID 0x13b1
472 #define NVIDIA_VENDOR_ID 0x0955
473 #define HP_VENDOR_ID 0x03f0
474
475 static const struct usb_device_id products[] = {
476 /* BLACKLIST !!
477 *
478 * First blacklist any products that are egregiously nonconformant
479 * with the CDC Ethernet specs. Minor braindamage we cope with; when
480 * they're not even trying, needing a separate driver is only the first
481 * of the differences to show up.
482 */
483
484 #define ZAURUS_MASTER_INTERFACE \
485 .bInterfaceClass = USB_CLASS_COMM, \
486 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \
487 .bInterfaceProtocol = USB_CDC_PROTO_NONE
488
489 /* SA-1100 based Sharp Zaurus ("collie"), or compatible;
490 * wire-incompatible with true CDC Ethernet implementations.
491 * (And, it seems, needlessly so...)
492 */
493 {
494 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
495 | USB_DEVICE_ID_MATCH_DEVICE,
496 .idVendor = 0x04DD,
497 .idProduct = 0x8004,
498 ZAURUS_MASTER_INTERFACE,
499 .driver_info = 0,
500 },
501
502 /* PXA-25x based Sharp Zaurii. Note that it seems some of these
503 * (later models especially) may have shipped only with firmware
504 * advertising false "CDC MDLM" compatibility ... but we're not
505 * clear which models did that, so for now let's assume the worst.
506 */
507 {
508 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
509 | USB_DEVICE_ID_MATCH_DEVICE,
510 .idVendor = 0x04DD,
511 .idProduct = 0x8005, /* A-300 */
512 ZAURUS_MASTER_INTERFACE,
513 .driver_info = 0,
514 }, {
515 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
516 | USB_DEVICE_ID_MATCH_DEVICE,
517 .idVendor = 0x04DD,
518 .idProduct = 0x8006, /* B-500/SL-5600 */
519 ZAURUS_MASTER_INTERFACE,
520 .driver_info = 0,
521 }, {
522 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
523 | USB_DEVICE_ID_MATCH_DEVICE,
524 .idVendor = 0x04DD,
525 .idProduct = 0x8007, /* C-700 */
526 ZAURUS_MASTER_INTERFACE,
527 .driver_info = 0,
528 }, {
529 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
530 | USB_DEVICE_ID_MATCH_DEVICE,
531 .idVendor = 0x04DD,
532 .idProduct = 0x9031, /* C-750 C-760 */
533 ZAURUS_MASTER_INTERFACE,
534 .driver_info = 0,
535 }, {
536 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
537 | USB_DEVICE_ID_MATCH_DEVICE,
538 .idVendor = 0x04DD,
539 .idProduct = 0x9032, /* SL-6000 */
540 ZAURUS_MASTER_INTERFACE,
541 .driver_info = 0,
542 }, {
543 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
544 | USB_DEVICE_ID_MATCH_DEVICE,
545 .idVendor = 0x04DD,
546 /* reported with some C860 units */
547 .idProduct = 0x9050, /* C-860 */
548 ZAURUS_MASTER_INTERFACE,
549 .driver_info = 0,
550 },
551
552 /* Olympus has some models with a Zaurus-compatible option.
553 * R-1000 uses a FreeScale i.MXL cpu (ARMv4T)
554 */
555 {
556 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
557 | USB_DEVICE_ID_MATCH_DEVICE,
558 .idVendor = 0x07B4,
559 .idProduct = 0x0F02, /* R-1000 */
560 ZAURUS_MASTER_INTERFACE,
561 .driver_info = 0,
562 },
563
564 /* LG Electronics VL600 wants additional headers on every frame */
565 {
566 USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM,
567 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
568 .driver_info = 0,
569 },
570
571 /* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */
572 {
573 USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM,
574 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
575 .driver_info = 0,
576 },
577
578 /* Novatel USB551L and MC551 - handled by qmi_wwan */
579 {
580 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0xB001, USB_CLASS_COMM,
581 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
582 .driver_info = 0,
583 },
584
585 /* Novatel E362 - handled by qmi_wwan */
586 {
587 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9010, USB_CLASS_COMM,
588 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
589 .driver_info = 0,
590 },
591
592 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */
593 {
594 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8195, USB_CLASS_COMM,
595 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
596 .driver_info = 0,
597 },
598
599 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */
600 {
601 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8196, USB_CLASS_COMM,
602 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
603 .driver_info = 0,
604 },
605
606 /* Dell Wireless 5804 (Novatel E371) - handled by qmi_wwan */
607 {
608 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x819b, USB_CLASS_COMM,
609 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
610 .driver_info = 0,
611 },
612
613 /* Novatel Expedite E371 - handled by qmi_wwan */
614 {
615 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9011, USB_CLASS_COMM,
616 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
617 .driver_info = 0,
618 },
619
620 /* HP lt2523 (Novatel E371) - handled by qmi_wwan */
621 {
622 USB_DEVICE_AND_INTERFACE_INFO(HP_VENDOR_ID, 0x421d, USB_CLASS_COMM,
623 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
624 .driver_info = 0,
625 },
626
627 /* AnyDATA ADU960S - handled by qmi_wwan */
628 {
629 USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, USB_CLASS_COMM,
630 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
631 .driver_info = 0,
632 },
633
634 /* Huawei E1820 - handled by qmi_wwan */
635 {
636 USB_DEVICE_INTERFACE_NUMBER(HUAWEI_VENDOR_ID, 0x14ac, 1),
637 .driver_info = 0,
638 },
639
640 /* Realtek RTL8152 Based USB 2.0 Ethernet Adapters */
641 {
642 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8152, USB_CLASS_COMM,
643 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
644 .driver_info = 0,
645 },
646
647 /* Realtek RTL8153 Based USB 3.0 Ethernet Adapters */
648 {
649 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8153, USB_CLASS_COMM,
650 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
651 .driver_info = 0,
652 },
653
654 /* Samsung USB Ethernet Adapters */
655 {
656 USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, 0xa101, USB_CLASS_COMM,
657 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
658 .driver_info = 0,
659 },
660
661 #if IS_ENABLED(CONFIG_USB_RTL8152)
662 /* Linksys USB3GIGV1 Ethernet Adapter */
663 {
664 USB_DEVICE_AND_INTERFACE_INFO(LINKSYS_VENDOR_ID, 0x0041, USB_CLASS_COMM,
665 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
666 .driver_info = 0,
667 },
668 #endif
669
670 /* Lenovo Thinkpad USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */
671 {
672 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7205, USB_CLASS_COMM,
673 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
674 .driver_info = 0,
675 },
676
677 /* NVIDIA Tegra USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */
678 {
679 USB_DEVICE_AND_INTERFACE_INFO(NVIDIA_VENDOR_ID, 0x09ff, USB_CLASS_COMM,
680 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
681 .driver_info = 0,
682 },
683
684 /* WHITELIST!!!
685 *
686 * CDC Ether uses two interfaces, not necessarily consecutive.
687 * We match the main interface, ignoring the optional device
688 * class so we could handle devices that aren't exclusively
689 * CDC ether.
690 *
691 * NOTE: this match must come AFTER entries blacklisting devices
692 * because of bugs/quirks in a given product (like Zaurus, above).
693 */
694 {
695 /* ZTE (Vodafone) K3805-Z */
696 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1003, USB_CLASS_COMM,
697 USB_CDC_SUBCLASS_ETHERNET,
698 USB_CDC_PROTO_NONE),
699 .driver_info = (unsigned long)&wwan_info,
700 }, {
701 /* ZTE (Vodafone) K3806-Z */
702 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1015, USB_CLASS_COMM,
703 USB_CDC_SUBCLASS_ETHERNET,
704 USB_CDC_PROTO_NONE),
705 .driver_info = (unsigned long)&wwan_info,
706 }, {
707 /* ZTE (Vodafone) K4510-Z */
708 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1173, USB_CLASS_COMM,
709 USB_CDC_SUBCLASS_ETHERNET,
710 USB_CDC_PROTO_NONE),
711 .driver_info = (unsigned long)&wwan_info,
712 }, {
713 /* ZTE (Vodafone) K3770-Z */
714 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1177, USB_CLASS_COMM,
715 USB_CDC_SUBCLASS_ETHERNET,
716 USB_CDC_PROTO_NONE),
717 .driver_info = (unsigned long)&wwan_info,
718 }, {
719 /* ZTE (Vodafone) K3772-Z */
720 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1181, USB_CLASS_COMM,
721 USB_CDC_SUBCLASS_ETHERNET,
722 USB_CDC_PROTO_NONE),
723 .driver_info = (unsigned long)&wwan_info,
724 }, {
725 /* Cinterion AHS3 modem by GEMALTO */
726 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0055, USB_CLASS_COMM,
727 USB_CDC_SUBCLASS_ETHERNET,
728 USB_CDC_PROTO_NONE),
729 .driver_info = (unsigned long)&wwan_info,
730 }, {
731 /* Telit modules */
732 USB_VENDOR_AND_INTERFACE_INFO(0x1bc7, USB_CLASS_COMM,
733 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
734 .driver_info = (kernel_ulong_t) &wwan_info,
735 }, {
736 /* Dell DW5580 modules */
737 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x81ba, USB_CLASS_COMM,
738 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
739 .driver_info = (kernel_ulong_t)&wwan_info,
740 }, {
741 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
742 USB_CDC_PROTO_NONE),
743 .driver_info = (unsigned long) &cdc_info,
744 }, {
745 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM,
746 USB_CDC_PROTO_NONE),
747 .driver_info = (unsigned long)&wwan_info,
748
749 }, {
750 /* Various Huawei modems with a network port like the UMG1831 */
751 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_COMM,
752 USB_CDC_SUBCLASS_ETHERNET, 255),
753 .driver_info = (unsigned long)&wwan_info,
754 },
755 { }, /* END */
756 };
757 MODULE_DEVICE_TABLE(usb, products);
758
759 static struct usb_driver cdc_driver = {
760 .name = "cdc_ether",
761 .id_table = products,
762 .probe = usbnet_probe,
763 .disconnect = usbnet_disconnect,
764 .suspend = usbnet_suspend,
765 .resume = usbnet_resume,
766 .reset_resume = usbnet_resume,
767 .supports_autosuspend = 1,
768 .disable_hub_initiated_lpm = 1,
769 };
770
771 module_usb_driver(cdc_driver);
772
773 MODULE_AUTHOR("David Brownell");
774 MODULE_DESCRIPTION("USB CDC Ethernet devices");
775 MODULE_LICENSE("GPL");
776