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
is_novatel_rndis(struct usb_interface_descriptor * desc)57 static int is_novatel_rndis(struct usb_interface_descriptor *desc)
58 {
59 return (desc->bInterfaceClass == USB_CLASS_MISC &&
60 desc->bInterfaceSubClass == 4 &&
61 desc->bInterfaceProtocol == 1);
62 }
63
64 #else
65
66 #define is_rndis(desc) 0
67 #define is_activesync(desc) 0
68 #define is_wireless_rndis(desc) 0
69 #define is_novatel_rndis(desc) 0
70
71 #endif
72
73 static const u8 mbm_guid[16] = {
74 0xa3, 0x17, 0xa8, 0x8b, 0x04, 0x5e, 0x4f, 0x01,
75 0xa6, 0x07, 0xc0, 0xff, 0xcb, 0x7e, 0x39, 0x2a,
76 };
77
usbnet_cdc_update_filter(struct usbnet * dev)78 static void usbnet_cdc_update_filter(struct usbnet *dev)
79 {
80 struct cdc_state *info = (void *) &dev->data;
81 struct usb_interface *intf = info->control;
82 struct net_device *net = dev->net;
83
84 u16 cdc_filter = USB_CDC_PACKET_TYPE_DIRECTED
85 | USB_CDC_PACKET_TYPE_BROADCAST;
86
87 /* filtering on the device is an optional feature and not worth
88 * the hassle so we just roughly care about snooping and if any
89 * multicast is requested, we take every multicast
90 */
91 if (net->flags & IFF_PROMISC)
92 cdc_filter |= USB_CDC_PACKET_TYPE_PROMISCUOUS;
93 if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI))
94 cdc_filter |= USB_CDC_PACKET_TYPE_ALL_MULTICAST;
95
96 usb_control_msg(dev->udev,
97 usb_sndctrlpipe(dev->udev, 0),
98 USB_CDC_SET_ETHERNET_PACKET_FILTER,
99 USB_TYPE_CLASS | USB_RECIP_INTERFACE,
100 cdc_filter,
101 intf->cur_altsetting->desc.bInterfaceNumber,
102 NULL,
103 0,
104 USB_CTRL_SET_TIMEOUT
105 );
106 }
107
108 /* probes control interface, claims data interface, collects the bulk
109 * endpoints, activates data interface (if needed), maybe sets MTU.
110 * all pure cdc, except for certain firmware workarounds, and knowing
111 * that rndis uses one different rule.
112 */
usbnet_generic_cdc_bind(struct usbnet * dev,struct usb_interface * intf)113 int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
114 {
115 u8 *buf = intf->cur_altsetting->extra;
116 int len = intf->cur_altsetting->extralen;
117 struct usb_interface_descriptor *d;
118 struct cdc_state *info = (void *) &dev->data;
119 int status;
120 int rndis;
121 bool android_rndis_quirk = false;
122 struct usb_driver *driver = driver_of(intf);
123 struct usb_cdc_parsed_header header;
124
125 if (sizeof(dev->data) < sizeof(*info))
126 return -EDOM;
127
128 /* expect strict spec conformance for the descriptors, but
129 * cope with firmware which stores them in the wrong place
130 */
131 if (len == 0 && dev->udev->actconfig->extralen) {
132 /* Motorola SB4100 (and others: Brad Hards says it's
133 * from a Broadcom design) put CDC descriptors here
134 */
135 buf = dev->udev->actconfig->extra;
136 len = dev->udev->actconfig->extralen;
137 dev_dbg(&intf->dev, "CDC descriptors on config\n");
138 }
139
140 /* Maybe CDC descriptors are after the endpoint? This bug has
141 * been seen on some 2Wire Inc RNDIS-ish products.
142 */
143 if (len == 0) {
144 struct usb_host_endpoint *hep;
145
146 hep = intf->cur_altsetting->endpoint;
147 if (hep) {
148 buf = hep->extra;
149 len = hep->extralen;
150 }
151 if (len)
152 dev_dbg(&intf->dev,
153 "CDC descriptors on endpoint\n");
154 }
155
156 /* this assumes that if there's a non-RNDIS vendor variant
157 * of cdc-acm, it'll fail RNDIS requests cleanly.
158 */
159 rndis = (is_rndis(&intf->cur_altsetting->desc) ||
160 is_activesync(&intf->cur_altsetting->desc) ||
161 is_wireless_rndis(&intf->cur_altsetting->desc) ||
162 is_novatel_rndis(&intf->cur_altsetting->desc));
163
164 memset(info, 0, sizeof(*info));
165 info->control = intf;
166
167 cdc_parse_cdc_header(&header, intf, buf, len);
168
169 info->u = header.usb_cdc_union_desc;
170 info->header = header.usb_cdc_header_desc;
171 info->ether = header.usb_cdc_ether_desc;
172 if (!info->u) {
173 if (rndis)
174 goto skip;
175 else /* in that case a quirk is mandatory */
176 goto bad_desc;
177 }
178 /* we need a master/control interface (what we're
179 * probed with) and a slave/data interface; union
180 * descriptors sort this all out.
181 */
182 info->control = usb_ifnum_to_if(dev->udev,
183 info->u->bMasterInterface0);
184 info->data = usb_ifnum_to_if(dev->udev,
185 info->u->bSlaveInterface0);
186 if (!info->control || !info->data) {
187 dev_dbg(&intf->dev,
188 "master #%u/%p slave #%u/%p\n",
189 info->u->bMasterInterface0,
190 info->control,
191 info->u->bSlaveInterface0,
192 info->data);
193 /* fall back to hard-wiring for RNDIS */
194 if (rndis) {
195 android_rndis_quirk = true;
196 goto skip;
197 }
198 goto bad_desc;
199 }
200 if (info->control != intf) {
201 dev_dbg(&intf->dev, "bogus CDC Union\n");
202 /* Ambit USB Cable Modem (and maybe others)
203 * interchanges master and slave interface.
204 */
205 if (info->data == intf) {
206 info->data = info->control;
207 info->control = intf;
208 } else
209 goto bad_desc;
210 }
211
212 /* some devices merge these - skip class check */
213 if (info->control == info->data)
214 goto skip;
215
216 /* a data interface altsetting does the real i/o */
217 d = &info->data->cur_altsetting->desc;
218 if (d->bInterfaceClass != USB_CLASS_CDC_DATA) {
219 dev_dbg(&intf->dev, "slave class %u\n",
220 d->bInterfaceClass);
221 goto bad_desc;
222 }
223 skip:
224 /* Communcation class functions with bmCapabilities are not
225 * RNDIS. But some Wireless class RNDIS functions use
226 * bmCapabilities for their own purpose. The failsafe is
227 * therefore applied only to Communication class RNDIS
228 * functions. The rndis test is redundant, but a cheap
229 * optimization.
230 */
231 if (rndis && is_rndis(&intf->cur_altsetting->desc) &&
232 header.usb_cdc_acm_descriptor &&
233 header.usb_cdc_acm_descriptor->bmCapabilities) {
234 dev_dbg(&intf->dev,
235 "ACM capabilities %02x, not really RNDIS?\n",
236 header.usb_cdc_acm_descriptor->bmCapabilities);
237 goto bad_desc;
238 }
239
240 if (header.usb_cdc_ether_desc && info->ether->wMaxSegmentSize) {
241 dev->hard_mtu = le16_to_cpu(info->ether->wMaxSegmentSize);
242 /* because of Zaurus, we may be ignoring the host
243 * side link address we were given.
244 */
245 }
246
247 if (header.usb_cdc_mdlm_desc &&
248 memcmp(header.usb_cdc_mdlm_desc->bGUID, mbm_guid, 16)) {
249 dev_dbg(&intf->dev, "GUID doesn't match\n");
250 goto bad_desc;
251 }
252
253 if (header.usb_cdc_mdlm_detail_desc &&
254 header.usb_cdc_mdlm_detail_desc->bLength <
255 (sizeof(struct usb_cdc_mdlm_detail_desc) + 1)) {
256 dev_dbg(&intf->dev, "Descriptor too short\n");
257 goto bad_desc;
258 }
259
260
261
262 /* Microsoft ActiveSync based and some regular RNDIS devices lack the
263 * CDC descriptors, so we'll hard-wire the interfaces and not check
264 * for descriptors.
265 *
266 * Some Android RNDIS devices have a CDC Union descriptor pointing
267 * to non-existing interfaces. Ignore that and attempt the same
268 * hard-wired 0 and 1 interfaces.
269 */
270 if (rndis && (!info->u || android_rndis_quirk)) {
271 info->control = usb_ifnum_to_if(dev->udev, 0);
272 info->data = usb_ifnum_to_if(dev->udev, 1);
273 if (!info->control || !info->data || info->control != intf) {
274 dev_dbg(&intf->dev,
275 "rndis: master #0/%p slave #1/%p\n",
276 info->control,
277 info->data);
278 goto bad_desc;
279 }
280
281 } else if (!info->header || (!rndis && !info->ether)) {
282 dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n",
283 info->header ? "" : "header ",
284 info->u ? "" : "union ",
285 info->ether ? "" : "ether ");
286 goto bad_desc;
287 }
288
289 /* claim data interface and set it up ... with side effects.
290 * network traffic can't flow until an altsetting is enabled.
291 */
292 if (info->data != info->control) {
293 status = usb_driver_claim_interface(driver, info->data, dev);
294 if (status < 0)
295 return status;
296 }
297 status = usbnet_get_endpoints(dev, info->data);
298 if (status < 0) {
299 /* ensure immediate exit from usbnet_disconnect */
300 usb_set_intfdata(info->data, NULL);
301 if (info->data != info->control)
302 usb_driver_release_interface(driver, info->data);
303 return status;
304 }
305
306 /* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */
307 if (info->data != info->control)
308 dev->status = NULL;
309 if (info->control->cur_altsetting->desc.bNumEndpoints == 1) {
310 struct usb_endpoint_descriptor *desc;
311
312 dev->status = &info->control->cur_altsetting->endpoint [0];
313 desc = &dev->status->desc;
314 if (!usb_endpoint_is_int_in(desc) ||
315 (le16_to_cpu(desc->wMaxPacketSize)
316 < sizeof(struct usb_cdc_notification)) ||
317 !desc->bInterval) {
318 dev_dbg(&intf->dev, "bad notification endpoint\n");
319 dev->status = NULL;
320 }
321 }
322 if (rndis && !dev->status) {
323 dev_dbg(&intf->dev, "missing RNDIS status endpoint\n");
324 usb_set_intfdata(info->data, NULL);
325 usb_driver_release_interface(driver, info->data);
326 return -ENODEV;
327 }
328
329 return 0;
330
331 bad_desc:
332 dev_info(&dev->udev->dev, "bad CDC descriptors\n");
333 return -ENODEV;
334 }
335 EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind);
336
337
338 /* like usbnet_generic_cdc_bind() but handles filter initialization
339 * correctly
340 */
usbnet_ether_cdc_bind(struct usbnet * dev,struct usb_interface * intf)341 int usbnet_ether_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
342 {
343 int rv;
344
345 rv = usbnet_generic_cdc_bind(dev, intf);
346 if (rv < 0)
347 goto bail_out;
348
349 /* Some devices don't initialise properly. In particular
350 * the packet filter is not reset. There are devices that
351 * don't do reset all the way. So the packet filter should
352 * be set to a sane initial value.
353 */
354 usbnet_cdc_update_filter(dev);
355
356 bail_out:
357 return rv;
358 }
359 EXPORT_SYMBOL_GPL(usbnet_ether_cdc_bind);
360
usbnet_cdc_unbind(struct usbnet * dev,struct usb_interface * intf)361 void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf)
362 {
363 struct cdc_state *info = (void *) &dev->data;
364 struct usb_driver *driver = driver_of(intf);
365
366 /* combined interface - nothing to do */
367 if (info->data == info->control)
368 return;
369
370 /* disconnect master --> disconnect slave */
371 if (intf == info->control && info->data) {
372 /* ensure immediate exit from usbnet_disconnect */
373 usb_set_intfdata(info->data, NULL);
374 usb_driver_release_interface(driver, info->data);
375 info->data = NULL;
376 }
377
378 /* and vice versa (just in case) */
379 else if (intf == info->data && info->control) {
380 /* ensure immediate exit from usbnet_disconnect */
381 usb_set_intfdata(info->control, NULL);
382 usb_driver_release_interface(driver, info->control);
383 info->control = NULL;
384 }
385 }
386 EXPORT_SYMBOL_GPL(usbnet_cdc_unbind);
387
388 /* Communications Device Class, Ethernet Control model
389 *
390 * Takes two interfaces. The DATA interface is inactive till an altsetting
391 * is selected. Configuration data includes class descriptors. There's
392 * an optional status endpoint on the control interface.
393 *
394 * This should interop with whatever the 2.4 "CDCEther.c" driver
395 * (by Brad Hards) talked with, with more functionality.
396 */
397
dumpspeed(struct usbnet * dev,__le32 * speeds)398 static void dumpspeed(struct usbnet *dev, __le32 *speeds)
399 {
400 netif_info(dev, timer, dev->net,
401 "link speeds: %u kbps up, %u kbps down\n",
402 __le32_to_cpu(speeds[0]) / 1000,
403 __le32_to_cpu(speeds[1]) / 1000);
404 }
405
usbnet_cdc_status(struct usbnet * dev,struct urb * urb)406 void usbnet_cdc_status(struct usbnet *dev, struct urb *urb)
407 {
408 struct usb_cdc_notification *event;
409
410 if (urb->actual_length < sizeof(*event))
411 return;
412
413 /* SPEED_CHANGE can get split into two 8-byte packets */
414 if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) {
415 dumpspeed(dev, (__le32 *) urb->transfer_buffer);
416 return;
417 }
418
419 event = urb->transfer_buffer;
420 switch (event->bNotificationType) {
421 case USB_CDC_NOTIFY_NETWORK_CONNECTION:
422 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n",
423 event->wValue ? "on" : "off");
424 usbnet_link_change(dev, !!event->wValue, 0);
425 break;
426 case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */
427 netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n",
428 urb->actual_length);
429 if (urb->actual_length != (sizeof(*event) + 8))
430 set_bit(EVENT_STS_SPLIT, &dev->flags);
431 else
432 dumpspeed(dev, (__le32 *) &event[1]);
433 break;
434 /* USB_CDC_NOTIFY_RESPONSE_AVAILABLE can happen too (e.g. RNDIS),
435 * but there are no standard formats for the response data.
436 */
437 default:
438 netdev_err(dev->net, "CDC: unexpected notification %02x!\n",
439 event->bNotificationType);
440 break;
441 }
442 }
443 EXPORT_SYMBOL_GPL(usbnet_cdc_status);
444
usbnet_cdc_bind(struct usbnet * dev,struct usb_interface * intf)445 int usbnet_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
446 {
447 int status;
448 struct cdc_state *info = (void *) &dev->data;
449
450 BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data)
451 < sizeof(struct cdc_state)));
452
453 status = usbnet_ether_cdc_bind(dev, intf);
454 if (status < 0)
455 return status;
456
457 status = usbnet_get_ethernet_addr(dev, info->ether->iMACAddress);
458 if (status < 0) {
459 usb_set_intfdata(info->data, NULL);
460 usb_driver_release_interface(driver_of(intf), info->data);
461 return status;
462 }
463
464 return 0;
465 }
466 EXPORT_SYMBOL_GPL(usbnet_cdc_bind);
467
usbnet_cdc_zte_bind(struct usbnet * dev,struct usb_interface * intf)468 static int usbnet_cdc_zte_bind(struct usbnet *dev, struct usb_interface *intf)
469 {
470 int status = usbnet_cdc_bind(dev, intf);
471
472 if (!status && (dev->net->dev_addr[0] & 0x02))
473 eth_hw_addr_random(dev->net);
474
475 return status;
476 }
477
478 /* Make sure packets have correct destination MAC address
479 *
480 * A firmware bug observed on some devices (ZTE MF823/831/910) is that the
481 * device sends packets with a static, bogus, random MAC address (event if
482 * device MAC address has been updated). Always set MAC address to that of the
483 * device.
484 */
usbnet_cdc_zte_rx_fixup(struct usbnet * dev,struct sk_buff * skb)485 static int usbnet_cdc_zte_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
486 {
487 if (skb->len < ETH_HLEN || !(skb->data[0] & 0x02))
488 return 1;
489
490 skb_reset_mac_header(skb);
491 ether_addr_copy(eth_hdr(skb)->h_dest, dev->net->dev_addr);
492
493 return 1;
494 }
495
496 /* Ensure correct link state
497 *
498 * Some devices (ZTE MF823/831/910) export two carrier on notifications when
499 * connected. This causes the link state to be incorrect. Work around this by
500 * always setting the state to off, then on.
501 */
usbnet_cdc_zte_status(struct usbnet * dev,struct urb * urb)502 static void usbnet_cdc_zte_status(struct usbnet *dev, struct urb *urb)
503 {
504 struct usb_cdc_notification *event;
505
506 if (urb->actual_length < sizeof(*event))
507 return;
508
509 event = urb->transfer_buffer;
510
511 if (event->bNotificationType != USB_CDC_NOTIFY_NETWORK_CONNECTION) {
512 usbnet_cdc_status(dev, urb);
513 return;
514 }
515
516 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n",
517 event->wValue ? "on" : "off");
518
519 if (event->wValue &&
520 netif_carrier_ok(dev->net))
521 netif_carrier_off(dev->net);
522
523 usbnet_link_change(dev, !!event->wValue, 0);
524 }
525
526 static const struct driver_info cdc_info = {
527 .description = "CDC Ethernet Device",
528 .flags = FLAG_ETHER | FLAG_POINTTOPOINT,
529 .bind = usbnet_cdc_bind,
530 .unbind = usbnet_cdc_unbind,
531 .status = usbnet_cdc_status,
532 .set_rx_mode = usbnet_cdc_update_filter,
533 .manage_power = usbnet_manage_power,
534 };
535
536 static const struct driver_info zte_cdc_info = {
537 .description = "ZTE CDC Ethernet Device",
538 .flags = FLAG_ETHER | FLAG_POINTTOPOINT,
539 .bind = usbnet_cdc_zte_bind,
540 .unbind = usbnet_cdc_unbind,
541 .status = usbnet_cdc_zte_status,
542 .set_rx_mode = usbnet_cdc_update_filter,
543 .manage_power = usbnet_manage_power,
544 .rx_fixup = usbnet_cdc_zte_rx_fixup,
545 };
546
547 static const struct driver_info wwan_info = {
548 .description = "Mobile Broadband Network Device",
549 .flags = FLAG_WWAN,
550 .bind = usbnet_cdc_bind,
551 .unbind = usbnet_cdc_unbind,
552 .status = usbnet_cdc_status,
553 .set_rx_mode = usbnet_cdc_update_filter,
554 .manage_power = usbnet_manage_power,
555 };
556
557 /*-------------------------------------------------------------------------*/
558
559 #define HUAWEI_VENDOR_ID 0x12D1
560 #define NOVATEL_VENDOR_ID 0x1410
561 #define ZTE_VENDOR_ID 0x19D2
562 #define DELL_VENDOR_ID 0x413C
563 #define REALTEK_VENDOR_ID 0x0bda
564 #define SAMSUNG_VENDOR_ID 0x04e8
565 #define LENOVO_VENDOR_ID 0x17ef
566 #define LINKSYS_VENDOR_ID 0x13b1
567 #define NVIDIA_VENDOR_ID 0x0955
568 #define HP_VENDOR_ID 0x03f0
569 #define MICROSOFT_VENDOR_ID 0x045e
570 #define UBLOX_VENDOR_ID 0x1546
571 #define TPLINK_VENDOR_ID 0x2357
572
573 static const struct usb_device_id products[] = {
574 /* BLACKLIST !!
575 *
576 * First blacklist any products that are egregiously nonconformant
577 * with the CDC Ethernet specs. Minor braindamage we cope with; when
578 * they're not even trying, needing a separate driver is only the first
579 * of the differences to show up.
580 */
581
582 #define ZAURUS_MASTER_INTERFACE \
583 .bInterfaceClass = USB_CLASS_COMM, \
584 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \
585 .bInterfaceProtocol = USB_CDC_PROTO_NONE
586
587 /* SA-1100 based Sharp Zaurus ("collie"), or compatible;
588 * wire-incompatible with true CDC Ethernet implementations.
589 * (And, it seems, needlessly so...)
590 */
591 {
592 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
593 | USB_DEVICE_ID_MATCH_DEVICE,
594 .idVendor = 0x04DD,
595 .idProduct = 0x8004,
596 ZAURUS_MASTER_INTERFACE,
597 .driver_info = 0,
598 },
599
600 /* PXA-25x based Sharp Zaurii. Note that it seems some of these
601 * (later models especially) may have shipped only with firmware
602 * advertising false "CDC MDLM" compatibility ... but we're not
603 * clear which models did that, so for now let's assume the worst.
604 */
605 {
606 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
607 | USB_DEVICE_ID_MATCH_DEVICE,
608 .idVendor = 0x04DD,
609 .idProduct = 0x8005, /* A-300 */
610 ZAURUS_MASTER_INTERFACE,
611 .driver_info = 0,
612 }, {
613 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
614 | USB_DEVICE_ID_MATCH_DEVICE,
615 .idVendor = 0x04DD,
616 .idProduct = 0x8006, /* B-500/SL-5600 */
617 ZAURUS_MASTER_INTERFACE,
618 .driver_info = 0,
619 }, {
620 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
621 | USB_DEVICE_ID_MATCH_DEVICE,
622 .idVendor = 0x04DD,
623 .idProduct = 0x8007, /* C-700 */
624 ZAURUS_MASTER_INTERFACE,
625 .driver_info = 0,
626 }, {
627 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
628 | USB_DEVICE_ID_MATCH_DEVICE,
629 .idVendor = 0x04DD,
630 .idProduct = 0x9031, /* C-750 C-760 */
631 ZAURUS_MASTER_INTERFACE,
632 .driver_info = 0,
633 }, {
634 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
635 | USB_DEVICE_ID_MATCH_DEVICE,
636 .idVendor = 0x04DD,
637 .idProduct = 0x9032, /* SL-6000 */
638 ZAURUS_MASTER_INTERFACE,
639 .driver_info = 0,
640 }, {
641 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
642 | USB_DEVICE_ID_MATCH_DEVICE,
643 .idVendor = 0x04DD,
644 /* reported with some C860 units */
645 .idProduct = 0x9050, /* C-860 */
646 ZAURUS_MASTER_INTERFACE,
647 .driver_info = 0,
648 },
649
650 /* Olympus has some models with a Zaurus-compatible option.
651 * R-1000 uses a FreeScale i.MXL cpu (ARMv4T)
652 */
653 {
654 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
655 | USB_DEVICE_ID_MATCH_DEVICE,
656 .idVendor = 0x07B4,
657 .idProduct = 0x0F02, /* R-1000 */
658 ZAURUS_MASTER_INTERFACE,
659 .driver_info = 0,
660 },
661
662 /* LG Electronics VL600 wants additional headers on every frame */
663 {
664 USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM,
665 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
666 .driver_info = 0,
667 },
668
669 /* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */
670 {
671 USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM,
672 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
673 .driver_info = 0,
674 },
675
676 /* Novatel USB551L and MC551 - handled by qmi_wwan */
677 {
678 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0xB001, USB_CLASS_COMM,
679 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
680 .driver_info = 0,
681 },
682
683 /* Novatel E362 - handled by qmi_wwan */
684 {
685 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9010, USB_CLASS_COMM,
686 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
687 .driver_info = 0,
688 },
689
690 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */
691 {
692 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8195, USB_CLASS_COMM,
693 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
694 .driver_info = 0,
695 },
696
697 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */
698 {
699 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8196, USB_CLASS_COMM,
700 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
701 .driver_info = 0,
702 },
703
704 /* Dell Wireless 5804 (Novatel E371) - handled by qmi_wwan */
705 {
706 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x819b, USB_CLASS_COMM,
707 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
708 .driver_info = 0,
709 },
710
711 /* Novatel Expedite E371 - handled by qmi_wwan */
712 {
713 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9011, USB_CLASS_COMM,
714 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
715 .driver_info = 0,
716 },
717
718 /* HP lt2523 (Novatel E371) - handled by qmi_wwan */
719 {
720 USB_DEVICE_AND_INTERFACE_INFO(HP_VENDOR_ID, 0x421d, USB_CLASS_COMM,
721 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
722 .driver_info = 0,
723 },
724
725 /* AnyDATA ADU960S - handled by qmi_wwan */
726 {
727 USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, USB_CLASS_COMM,
728 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
729 .driver_info = 0,
730 },
731
732 /* Huawei E1820 - handled by qmi_wwan */
733 {
734 USB_DEVICE_INTERFACE_NUMBER(HUAWEI_VENDOR_ID, 0x14ac, 1),
735 .driver_info = 0,
736 },
737
738 /* Realtek RTL8152 Based USB 2.0 Ethernet Adapters */
739 {
740 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8152, USB_CLASS_COMM,
741 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
742 .driver_info = 0,
743 },
744
745 /* Realtek RTL8153 Based USB 3.0 Ethernet Adapters */
746 {
747 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8153, USB_CLASS_COMM,
748 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
749 .driver_info = 0,
750 },
751
752 /* Samsung USB Ethernet Adapters */
753 {
754 USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, 0xa101, USB_CLASS_COMM,
755 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
756 .driver_info = 0,
757 },
758
759 #if IS_ENABLED(CONFIG_USB_RTL8152)
760 /* Linksys USB3GIGV1 Ethernet Adapter */
761 {
762 USB_DEVICE_AND_INTERFACE_INFO(LINKSYS_VENDOR_ID, 0x0041, USB_CLASS_COMM,
763 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
764 .driver_info = 0,
765 },
766 #endif
767
768 /* ThinkPad USB-C Dock (based on Realtek RTL8153) */
769 {
770 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3062, USB_CLASS_COMM,
771 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
772 .driver_info = 0,
773 },
774
775 /* ThinkPad Thunderbolt 3 Dock (based on Realtek RTL8153) */
776 {
777 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3069, USB_CLASS_COMM,
778 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
779 .driver_info = 0,
780 },
781
782 /* Lenovo Thinkpad USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */
783 {
784 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7205, USB_CLASS_COMM,
785 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
786 .driver_info = 0,
787 },
788
789 /* Lenovo USB C to Ethernet Adapter (based on Realtek RTL8153) */
790 {
791 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x720c, USB_CLASS_COMM,
792 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
793 .driver_info = 0,
794 },
795
796 /* Lenovo USB-C Travel Hub (based on Realtek RTL8153) */
797 {
798 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7214, USB_CLASS_COMM,
799 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
800 .driver_info = 0,
801 },
802
803 /* ThinkPad USB-C Dock Gen 2 (based on Realtek RTL8153) */
804 {
805 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0xa387, USB_CLASS_COMM,
806 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
807 .driver_info = 0,
808 },
809
810 /* NVIDIA Tegra USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */
811 {
812 USB_DEVICE_AND_INTERFACE_INFO(NVIDIA_VENDOR_ID, 0x09ff, USB_CLASS_COMM,
813 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
814 .driver_info = 0,
815 },
816
817 /* Microsoft Surface 2 dock (based on Realtek RTL8152) */
818 {
819 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07ab, USB_CLASS_COMM,
820 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
821 .driver_info = 0,
822 },
823
824 /* Microsoft Surface 3 dock (based on Realtek RTL8153) */
825 {
826 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07c6, USB_CLASS_COMM,
827 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
828 .driver_info = 0,
829 },
830
831 /* TP-LINK UE300 USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */
832 {
833 USB_DEVICE_AND_INTERFACE_INFO(TPLINK_VENDOR_ID, 0x0601, USB_CLASS_COMM,
834 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
835 .driver_info = 0,
836 },
837
838 /* WHITELIST!!!
839 *
840 * CDC Ether uses two interfaces, not necessarily consecutive.
841 * We match the main interface, ignoring the optional device
842 * class so we could handle devices that aren't exclusively
843 * CDC ether.
844 *
845 * NOTE: this match must come AFTER entries blacklisting devices
846 * because of bugs/quirks in a given product (like Zaurus, above).
847 */
848 {
849 /* ZTE (Vodafone) K3805-Z */
850 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1003, USB_CLASS_COMM,
851 USB_CDC_SUBCLASS_ETHERNET,
852 USB_CDC_PROTO_NONE),
853 .driver_info = (unsigned long)&wwan_info,
854 }, {
855 /* ZTE (Vodafone) K3806-Z */
856 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1015, USB_CLASS_COMM,
857 USB_CDC_SUBCLASS_ETHERNET,
858 USB_CDC_PROTO_NONE),
859 .driver_info = (unsigned long)&wwan_info,
860 }, {
861 /* ZTE (Vodafone) K4510-Z */
862 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1173, USB_CLASS_COMM,
863 USB_CDC_SUBCLASS_ETHERNET,
864 USB_CDC_PROTO_NONE),
865 .driver_info = (unsigned long)&wwan_info,
866 }, {
867 /* ZTE (Vodafone) K3770-Z */
868 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1177, USB_CLASS_COMM,
869 USB_CDC_SUBCLASS_ETHERNET,
870 USB_CDC_PROTO_NONE),
871 .driver_info = (unsigned long)&wwan_info,
872 }, {
873 /* ZTE (Vodafone) K3772-Z */
874 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1181, USB_CLASS_COMM,
875 USB_CDC_SUBCLASS_ETHERNET,
876 USB_CDC_PROTO_NONE),
877 .driver_info = (unsigned long)&wwan_info,
878 }, {
879 /* Telit modules */
880 USB_VENDOR_AND_INTERFACE_INFO(0x1bc7, USB_CLASS_COMM,
881 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
882 .driver_info = (kernel_ulong_t) &wwan_info,
883 }, {
884 /* Dell DW5580 modules */
885 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x81ba, USB_CLASS_COMM,
886 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
887 .driver_info = (kernel_ulong_t)&wwan_info,
888 }, {
889 /* Huawei ME906 and ME909 */
890 USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0x15c1, USB_CLASS_COMM,
891 USB_CDC_SUBCLASS_ETHERNET,
892 USB_CDC_PROTO_NONE),
893 .driver_info = (unsigned long)&wwan_info,
894 }, {
895 /* ZTE modules */
896 USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, USB_CLASS_COMM,
897 USB_CDC_SUBCLASS_ETHERNET,
898 USB_CDC_PROTO_NONE),
899 .driver_info = (unsigned long)&zte_cdc_info,
900 }, {
901 /* U-blox TOBY-L2 */
902 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1143, USB_CLASS_COMM,
903 USB_CDC_SUBCLASS_ETHERNET,
904 USB_CDC_PROTO_NONE),
905 .driver_info = (unsigned long)&wwan_info,
906 }, {
907 /* U-blox SARA-U2 */
908 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1104, USB_CLASS_COMM,
909 USB_CDC_SUBCLASS_ETHERNET,
910 USB_CDC_PROTO_NONE),
911 .driver_info = (unsigned long)&wwan_info,
912 }, {
913 /* Cinterion AHS3 modem by GEMALTO */
914 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0055, USB_CLASS_COMM,
915 USB_CDC_SUBCLASS_ETHERNET,
916 USB_CDC_PROTO_NONE),
917 .driver_info = (unsigned long)&wwan_info,
918 }, {
919 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
920 USB_CDC_PROTO_NONE),
921 .driver_info = (unsigned long) &cdc_info,
922 }, {
923 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM,
924 USB_CDC_PROTO_NONE),
925 .driver_info = (unsigned long)&wwan_info,
926
927 }, {
928 /* Various Huawei modems with a network port like the UMG1831 */
929 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_COMM,
930 USB_CDC_SUBCLASS_ETHERNET, 255),
931 .driver_info = (unsigned long)&wwan_info,
932 },
933 { }, /* END */
934 };
935 MODULE_DEVICE_TABLE(usb, products);
936
937 static struct usb_driver cdc_driver = {
938 .name = "cdc_ether",
939 .id_table = products,
940 .probe = usbnet_probe,
941 .disconnect = usbnet_disconnect,
942 .suspend = usbnet_suspend,
943 .resume = usbnet_resume,
944 .reset_resume = usbnet_resume,
945 .supports_autosuspend = 1,
946 .disable_hub_initiated_lpm = 1,
947 };
948
949 module_usb_driver(cdc_driver);
950
951 MODULE_AUTHOR("David Brownell");
952 MODULE_DESCRIPTION("USB CDC Ethernet devices");
953 MODULE_LICENSE("GPL");
954