1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * CDC Ethernet based networking peripherals
4 * Copyright (C) 2003-2005 by David Brownell
5 * Copyright (C) 2006 by Ole Andre Vadla Ravnas (ActiveSync)
6 */
7
8 // #define DEBUG // error path messages, extra info
9 // #define VERBOSE // more; success messages
10
11 #include <linux/module.h>
12 #include <linux/netdevice.h>
13 #include <linux/etherdevice.h>
14 #include <linux/ethtool.h>
15 #include <linux/workqueue.h>
16 #include <linux/mii.h>
17 #include <linux/usb.h>
18 #include <linux/usb/cdc.h>
19 #include <linux/usb/usbnet.h>
20
21
22 #if IS_ENABLED(CONFIG_USB_NET_RNDIS_HOST)
23
is_rndis(struct usb_interface_descriptor * desc)24 static int is_rndis(struct usb_interface_descriptor *desc)
25 {
26 return (desc->bInterfaceClass == USB_CLASS_COMM &&
27 desc->bInterfaceSubClass == 2 &&
28 desc->bInterfaceProtocol == 0xff);
29 }
30
is_activesync(struct usb_interface_descriptor * desc)31 static int is_activesync(struct usb_interface_descriptor *desc)
32 {
33 return (desc->bInterfaceClass == USB_CLASS_MISC &&
34 desc->bInterfaceSubClass == 1 &&
35 desc->bInterfaceProtocol == 1);
36 }
37
is_wireless_rndis(struct usb_interface_descriptor * desc)38 static int is_wireless_rndis(struct usb_interface_descriptor *desc)
39 {
40 return (desc->bInterfaceClass == USB_CLASS_WIRELESS_CONTROLLER &&
41 desc->bInterfaceSubClass == 1 &&
42 desc->bInterfaceProtocol == 3);
43 }
44
is_novatel_rndis(struct usb_interface_descriptor * desc)45 static int is_novatel_rndis(struct usb_interface_descriptor *desc)
46 {
47 return (desc->bInterfaceClass == USB_CLASS_MISC &&
48 desc->bInterfaceSubClass == 4 &&
49 desc->bInterfaceProtocol == 1);
50 }
51
52 #else
53
54 #define is_rndis(desc) 0
55 #define is_activesync(desc) 0
56 #define is_wireless_rndis(desc) 0
57 #define is_novatel_rndis(desc) 0
58
59 #endif
60
61 static const u8 mbm_guid[16] = {
62 0xa3, 0x17, 0xa8, 0x8b, 0x04, 0x5e, 0x4f, 0x01,
63 0xa6, 0x07, 0xc0, 0xff, 0xcb, 0x7e, 0x39, 0x2a,
64 };
65
usbnet_cdc_update_filter(struct usbnet * dev)66 void usbnet_cdc_update_filter(struct usbnet *dev)
67 {
68 struct net_device *net = dev->net;
69
70 u16 cdc_filter = USB_CDC_PACKET_TYPE_DIRECTED
71 | USB_CDC_PACKET_TYPE_BROADCAST;
72
73 /* filtering on the device is an optional feature and not worth
74 * the hassle so we just roughly care about snooping and if any
75 * multicast is requested, we take every multicast
76 */
77 if (net->flags & IFF_PROMISC)
78 cdc_filter |= USB_CDC_PACKET_TYPE_PROMISCUOUS;
79 if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI))
80 cdc_filter |= USB_CDC_PACKET_TYPE_ALL_MULTICAST;
81
82 usb_control_msg(dev->udev,
83 usb_sndctrlpipe(dev->udev, 0),
84 USB_CDC_SET_ETHERNET_PACKET_FILTER,
85 USB_TYPE_CLASS | USB_RECIP_INTERFACE,
86 cdc_filter,
87 dev->intf->cur_altsetting->desc.bInterfaceNumber,
88 NULL,
89 0,
90 USB_CTRL_SET_TIMEOUT
91 );
92 }
93 EXPORT_SYMBOL_GPL(usbnet_cdc_update_filter);
94
95 /* probes control interface, claims data interface, collects the bulk
96 * endpoints, activates data interface (if needed), maybe sets MTU.
97 * all pure cdc, except for certain firmware workarounds, and knowing
98 * that rndis uses one different rule.
99 */
usbnet_generic_cdc_bind(struct usbnet * dev,struct usb_interface * intf)100 int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
101 {
102 u8 *buf = intf->cur_altsetting->extra;
103 int len = intf->cur_altsetting->extralen;
104 struct usb_interface_descriptor *d;
105 struct cdc_state *info = (void *) &dev->data;
106 int status;
107 int rndis;
108 bool android_rndis_quirk = false;
109 struct usb_driver *driver = driver_of(intf);
110 struct usb_cdc_parsed_header header;
111
112 if (sizeof(dev->data) < sizeof(*info))
113 return -EDOM;
114
115 /* expect strict spec conformance for the descriptors, but
116 * cope with firmware which stores them in the wrong place
117 */
118 if (len == 0 && dev->udev->actconfig->extralen) {
119 /* Motorola SB4100 (and others: Brad Hards says it's
120 * from a Broadcom design) put CDC descriptors here
121 */
122 buf = dev->udev->actconfig->extra;
123 len = dev->udev->actconfig->extralen;
124 dev_dbg(&intf->dev, "CDC descriptors on config\n");
125 }
126
127 /* Maybe CDC descriptors are after the endpoint? This bug has
128 * been seen on some 2Wire Inc RNDIS-ish products.
129 */
130 if (len == 0) {
131 struct usb_host_endpoint *hep;
132
133 hep = intf->cur_altsetting->endpoint;
134 if (hep) {
135 buf = hep->extra;
136 len = hep->extralen;
137 }
138 if (len)
139 dev_dbg(&intf->dev,
140 "CDC descriptors on endpoint\n");
141 }
142
143 /* this assumes that if there's a non-RNDIS vendor variant
144 * of cdc-acm, it'll fail RNDIS requests cleanly.
145 */
146 rndis = (is_rndis(&intf->cur_altsetting->desc) ||
147 is_activesync(&intf->cur_altsetting->desc) ||
148 is_wireless_rndis(&intf->cur_altsetting->desc) ||
149 is_novatel_rndis(&intf->cur_altsetting->desc));
150
151 memset(info, 0, sizeof(*info));
152 info->control = intf;
153
154 cdc_parse_cdc_header(&header, intf, buf, len);
155
156 info->u = header.usb_cdc_union_desc;
157 info->header = header.usb_cdc_header_desc;
158 info->ether = header.usb_cdc_ether_desc;
159 if (!info->u) {
160 if (rndis)
161 goto skip;
162 else /* in that case a quirk is mandatory */
163 goto bad_desc;
164 }
165 /* we need a master/control interface (what we're
166 * probed with) and a slave/data interface; union
167 * descriptors sort this all out.
168 */
169 info->control = usb_ifnum_to_if(dev->udev, info->u->bMasterInterface0);
170 info->data = usb_ifnum_to_if(dev->udev, info->u->bSlaveInterface0);
171 if (!info->control || !info->data) {
172 dev_dbg(&intf->dev,
173 "master #%u/%p slave #%u/%p\n",
174 info->u->bMasterInterface0,
175 info->control,
176 info->u->bSlaveInterface0,
177 info->data);
178 /* fall back to hard-wiring for RNDIS */
179 if (rndis) {
180 android_rndis_quirk = true;
181 goto skip;
182 }
183 goto bad_desc;
184 }
185 if (info->control != intf) {
186 dev_dbg(&intf->dev, "bogus CDC Union\n");
187 /* Ambit USB Cable Modem (and maybe others)
188 * interchanges master and slave interface.
189 */
190 if (info->data == intf) {
191 info->data = info->control;
192 info->control = intf;
193 } else
194 goto bad_desc;
195 }
196
197 /* some devices merge these - skip class check */
198 if (info->control == info->data)
199 goto skip;
200
201 /* a data interface altsetting does the real i/o */
202 d = &info->data->cur_altsetting->desc;
203 if (d->bInterfaceClass != USB_CLASS_CDC_DATA) {
204 dev_dbg(&intf->dev, "slave class %u\n", d->bInterfaceClass);
205 goto bad_desc;
206 }
207 skip:
208 /* Communcation class functions with bmCapabilities are not
209 * RNDIS. But some Wireless class RNDIS functions use
210 * bmCapabilities for their own purpose. The failsafe is
211 * therefore applied only to Communication class RNDIS
212 * functions. The rndis test is redundant, but a cheap
213 * optimization.
214 */
215 if (rndis && is_rndis(&intf->cur_altsetting->desc) &&
216 header.usb_cdc_acm_descriptor &&
217 header.usb_cdc_acm_descriptor->bmCapabilities) {
218 dev_dbg(&intf->dev,
219 "ACM capabilities %02x, not really RNDIS?\n",
220 header.usb_cdc_acm_descriptor->bmCapabilities);
221 goto bad_desc;
222 }
223
224 if (header.usb_cdc_ether_desc && info->ether->wMaxSegmentSize) {
225 dev->hard_mtu = le16_to_cpu(info->ether->wMaxSegmentSize);
226 /* because of Zaurus, we may be ignoring the host
227 * side link address we were given.
228 */
229 }
230
231 if (header.usb_cdc_mdlm_desc &&
232 memcmp(header.usb_cdc_mdlm_desc->bGUID, mbm_guid, 16)) {
233 dev_dbg(&intf->dev, "GUID doesn't match\n");
234 goto bad_desc;
235 }
236
237 if (header.usb_cdc_mdlm_detail_desc &&
238 header.usb_cdc_mdlm_detail_desc->bLength <
239 (sizeof(struct usb_cdc_mdlm_detail_desc) + 1)) {
240 dev_dbg(&intf->dev, "Descriptor too short\n");
241 goto bad_desc;
242 }
243
244
245
246 /* Microsoft ActiveSync based and some regular RNDIS devices lack the
247 * CDC descriptors, so we'll hard-wire the interfaces and not check
248 * for descriptors.
249 *
250 * Some Android RNDIS devices have a CDC Union descriptor pointing
251 * to non-existing interfaces. Ignore that and attempt the same
252 * hard-wired 0 and 1 interfaces.
253 */
254 if (rndis && (!info->u || android_rndis_quirk)) {
255 info->control = usb_ifnum_to_if(dev->udev, 0);
256 info->data = usb_ifnum_to_if(dev->udev, 1);
257 if (!info->control || !info->data || info->control != intf) {
258 dev_dbg(&intf->dev,
259 "rndis: master #0/%p slave #1/%p\n",
260 info->control,
261 info->data);
262 goto bad_desc;
263 }
264
265 } else if (!info->header || (!rndis && !info->ether)) {
266 dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n",
267 info->header ? "" : "header ",
268 info->u ? "" : "union ",
269 info->ether ? "" : "ether ");
270 goto bad_desc;
271 }
272
273 /* claim data interface and set it up ... with side effects.
274 * network traffic can't flow until an altsetting is enabled.
275 */
276 if (info->data != info->control) {
277 status = usb_driver_claim_interface(driver, info->data, dev);
278 if (status < 0)
279 return status;
280 }
281 status = usbnet_get_endpoints(dev, info->data);
282 if (status < 0) {
283 /* ensure immediate exit from usbnet_disconnect */
284 usb_set_intfdata(info->data, NULL);
285 if (info->data != info->control)
286 usb_driver_release_interface(driver, info->data);
287 return status;
288 }
289
290 /* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */
291 if (info->data != info->control)
292 dev->status = NULL;
293 if (info->control->cur_altsetting->desc.bNumEndpoints == 1) {
294 struct usb_endpoint_descriptor *desc;
295
296 dev->status = &info->control->cur_altsetting->endpoint[0];
297 desc = &dev->status->desc;
298 if (!usb_endpoint_is_int_in(desc) ||
299 (le16_to_cpu(desc->wMaxPacketSize)
300 < sizeof(struct usb_cdc_notification)) ||
301 !desc->bInterval) {
302 dev_dbg(&intf->dev, "bad notification endpoint\n");
303 dev->status = NULL;
304 }
305 }
306 if (rndis && !dev->status) {
307 dev_dbg(&intf->dev, "missing RNDIS status endpoint\n");
308 usb_set_intfdata(info->data, NULL);
309 usb_driver_release_interface(driver, info->data);
310 return -ENODEV;
311 }
312
313 return 0;
314
315 bad_desc:
316 dev_info(&dev->udev->dev, "bad CDC descriptors\n");
317 return -ENODEV;
318 }
319 EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind);
320
321
322 /* like usbnet_generic_cdc_bind() but handles filter initialization
323 * correctly
324 */
usbnet_ether_cdc_bind(struct usbnet * dev,struct usb_interface * intf)325 int usbnet_ether_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
326 {
327 int rv;
328
329 rv = usbnet_generic_cdc_bind(dev, intf);
330 if (rv < 0)
331 goto bail_out;
332
333 /* Some devices don't initialise properly. In particular
334 * the packet filter is not reset. There are devices that
335 * don't do reset all the way. So the packet filter should
336 * be set to a sane initial value.
337 */
338 usbnet_cdc_update_filter(dev);
339
340 bail_out:
341 return rv;
342 }
343 EXPORT_SYMBOL_GPL(usbnet_ether_cdc_bind);
344
usbnet_cdc_unbind(struct usbnet * dev,struct usb_interface * intf)345 void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf)
346 {
347 struct cdc_state *info = (void *) &dev->data;
348 struct usb_driver *driver = driver_of(intf);
349
350 /* combined interface - nothing to do */
351 if (info->data == info->control)
352 return;
353
354 /* disconnect master --> disconnect slave */
355 if (intf == info->control && info->data) {
356 /* ensure immediate exit from usbnet_disconnect */
357 usb_set_intfdata(info->data, NULL);
358 usb_driver_release_interface(driver, info->data);
359 info->data = NULL;
360 }
361
362 /* and vice versa (just in case) */
363 else if (intf == info->data && info->control) {
364 /* ensure immediate exit from usbnet_disconnect */
365 usb_set_intfdata(info->control, NULL);
366 usb_driver_release_interface(driver, info->control);
367 info->control = NULL;
368 }
369 }
370 EXPORT_SYMBOL_GPL(usbnet_cdc_unbind);
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
dumpspeed(struct usbnet * dev,__le32 * speeds)382 static void dumpspeed(struct usbnet *dev, __le32 *speeds)
383 {
384 netif_info(dev, timer, dev->net,
385 "link speeds: %u kbps up, %u kbps down\n",
386 __le32_to_cpu(speeds[0]) / 1000,
387 __le32_to_cpu(speeds[1]) / 1000);
388 }
389
usbnet_cdc_status(struct usbnet * dev,struct urb * urb)390 void usbnet_cdc_status(struct usbnet *dev, struct urb *urb)
391 {
392 struct usb_cdc_notification *event;
393
394 if (urb->actual_length < sizeof(*event))
395 return;
396
397 /* SPEED_CHANGE can get split into two 8-byte packets */
398 if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) {
399 dumpspeed(dev, (__le32 *) urb->transfer_buffer);
400 return;
401 }
402
403 event = urb->transfer_buffer;
404 switch (event->bNotificationType) {
405 case USB_CDC_NOTIFY_NETWORK_CONNECTION:
406 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n",
407 event->wValue ? "on" : "off");
408 usbnet_link_change(dev, !!event->wValue, 0);
409 break;
410 case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */
411 netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n",
412 urb->actual_length);
413 if (urb->actual_length != (sizeof(*event) + 8))
414 set_bit(EVENT_STS_SPLIT, &dev->flags);
415 else
416 dumpspeed(dev, (__le32 *) &event[1]);
417 break;
418 /* USB_CDC_NOTIFY_RESPONSE_AVAILABLE can happen too (e.g. RNDIS),
419 * but there are no standard formats for the response data.
420 */
421 default:
422 netdev_err(dev->net, "CDC: unexpected notification %02x!\n",
423 event->bNotificationType);
424 break;
425 }
426 }
427 EXPORT_SYMBOL_GPL(usbnet_cdc_status);
428
usbnet_cdc_bind(struct usbnet * dev,struct usb_interface * intf)429 int usbnet_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
430 {
431 int status;
432 struct cdc_state *info = (void *) &dev->data;
433
434 BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data)
435 < sizeof(struct cdc_state)));
436
437 status = usbnet_ether_cdc_bind(dev, intf);
438 if (status < 0)
439 return status;
440
441 status = usbnet_get_ethernet_addr(dev, info->ether->iMACAddress);
442 if (status < 0) {
443 usb_set_intfdata(info->data, NULL);
444 usb_driver_release_interface(driver_of(intf), info->data);
445 return status;
446 }
447
448 return 0;
449 }
450 EXPORT_SYMBOL_GPL(usbnet_cdc_bind);
451
usbnet_cdc_zte_bind(struct usbnet * dev,struct usb_interface * intf)452 static int usbnet_cdc_zte_bind(struct usbnet *dev, struct usb_interface *intf)
453 {
454 int status = usbnet_cdc_bind(dev, intf);
455
456 if (!status && (dev->net->dev_addr[0] & 0x02))
457 eth_hw_addr_random(dev->net);
458
459 return status;
460 }
461
462 /* Make sure packets have correct destination MAC address
463 *
464 * A firmware bug observed on some devices (ZTE MF823/831/910) is that the
465 * device sends packets with a static, bogus, random MAC address (event if
466 * device MAC address has been updated). Always set MAC address to that of the
467 * device.
468 */
usbnet_cdc_zte_rx_fixup(struct usbnet * dev,struct sk_buff * skb)469 static int usbnet_cdc_zte_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
470 {
471 if (skb->len < ETH_HLEN || !(skb->data[0] & 0x02))
472 return 1;
473
474 skb_reset_mac_header(skb);
475 ether_addr_copy(eth_hdr(skb)->h_dest, dev->net->dev_addr);
476
477 return 1;
478 }
479
480 /* Ensure correct link state
481 *
482 * Some devices (ZTE MF823/831/910) export two carrier on notifications when
483 * connected. This causes the link state to be incorrect. Work around this by
484 * always setting the state to off, then on.
485 */
usbnet_cdc_zte_status(struct usbnet * dev,struct urb * urb)486 static void usbnet_cdc_zte_status(struct usbnet *dev, struct urb *urb)
487 {
488 struct usb_cdc_notification *event;
489
490 if (urb->actual_length < sizeof(*event))
491 return;
492
493 event = urb->transfer_buffer;
494
495 if (event->bNotificationType != USB_CDC_NOTIFY_NETWORK_CONNECTION) {
496 usbnet_cdc_status(dev, urb);
497 return;
498 }
499
500 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n",
501 event->wValue ? "on" : "off");
502
503 if (event->wValue &&
504 netif_carrier_ok(dev->net))
505 netif_carrier_off(dev->net);
506
507 usbnet_link_change(dev, !!event->wValue, 0);
508 }
509
510 static const struct driver_info cdc_info = {
511 .description = "CDC Ethernet Device",
512 .flags = FLAG_ETHER | FLAG_POINTTOPOINT,
513 .bind = usbnet_cdc_bind,
514 .unbind = usbnet_cdc_unbind,
515 .status = usbnet_cdc_status,
516 .set_rx_mode = usbnet_cdc_update_filter,
517 .manage_power = usbnet_manage_power,
518 };
519
520 static const struct driver_info zte_cdc_info = {
521 .description = "ZTE CDC Ethernet Device",
522 .flags = FLAG_ETHER | FLAG_POINTTOPOINT,
523 .bind = usbnet_cdc_zte_bind,
524 .unbind = usbnet_cdc_unbind,
525 .status = usbnet_cdc_zte_status,
526 .set_rx_mode = usbnet_cdc_update_filter,
527 .manage_power = usbnet_manage_power,
528 .rx_fixup = usbnet_cdc_zte_rx_fixup,
529 };
530
531 static const struct driver_info wwan_info = {
532 .description = "Mobile Broadband Network Device",
533 .flags = FLAG_WWAN,
534 .bind = usbnet_cdc_bind,
535 .unbind = usbnet_cdc_unbind,
536 .status = usbnet_cdc_status,
537 .set_rx_mode = usbnet_cdc_update_filter,
538 .manage_power = usbnet_manage_power,
539 };
540
541 /*-------------------------------------------------------------------------*/
542
543 #define HUAWEI_VENDOR_ID 0x12D1
544 #define NOVATEL_VENDOR_ID 0x1410
545 #define ZTE_VENDOR_ID 0x19D2
546 #define DELL_VENDOR_ID 0x413C
547 #define REALTEK_VENDOR_ID 0x0bda
548 #define SAMSUNG_VENDOR_ID 0x04e8
549 #define LENOVO_VENDOR_ID 0x17ef
550 #define LINKSYS_VENDOR_ID 0x13b1
551 #define NVIDIA_VENDOR_ID 0x0955
552 #define HP_VENDOR_ID 0x03f0
553 #define MICROSOFT_VENDOR_ID 0x045e
554 #define UBLOX_VENDOR_ID 0x1546
555 #define TPLINK_VENDOR_ID 0x2357
556 #define AQUANTIA_VENDOR_ID 0x2eca
557 #define ASIX_VENDOR_ID 0x0b95
558
559 static const struct usb_device_id products[] = {
560 /* BLACKLIST !!
561 *
562 * First blacklist any products that are egregiously nonconformant
563 * with the CDC Ethernet specs. Minor braindamage we cope with; when
564 * they're not even trying, needing a separate driver is only the first
565 * of the differences to show up.
566 */
567
568 #define ZAURUS_MASTER_INTERFACE \
569 .bInterfaceClass = USB_CLASS_COMM, \
570 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \
571 .bInterfaceProtocol = USB_CDC_PROTO_NONE
572
573 #define ZAURUS_FAKE_INTERFACE \
574 .bInterfaceClass = USB_CLASS_COMM, \
575 .bInterfaceSubClass = USB_CDC_SUBCLASS_MDLM, \
576 .bInterfaceProtocol = USB_CDC_PROTO_NONE
577
578 /* SA-1100 based Sharp Zaurus ("collie"), or compatible;
579 * wire-incompatible with true CDC Ethernet implementations.
580 * (And, it seems, needlessly so...)
581 */
582 {
583 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
584 | USB_DEVICE_ID_MATCH_DEVICE,
585 .idVendor = 0x04DD,
586 .idProduct = 0x8004,
587 ZAURUS_MASTER_INTERFACE,
588 .driver_info = 0,
589 },
590
591 /* PXA-25x based Sharp Zaurii. Note that it seems some of these
592 * (later models especially) may have shipped only with firmware
593 * advertising false "CDC MDLM" compatibility ... but we're not
594 * clear which models did that, so for now let's assume the worst.
595 */
596 {
597 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
598 | USB_DEVICE_ID_MATCH_DEVICE,
599 .idVendor = 0x04DD,
600 .idProduct = 0x8005, /* A-300 */
601 ZAURUS_MASTER_INTERFACE,
602 .driver_info = 0,
603 }, {
604 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
605 | USB_DEVICE_ID_MATCH_DEVICE,
606 .idVendor = 0x04DD,
607 .idProduct = 0x8006, /* B-500/SL-5600 */
608 ZAURUS_MASTER_INTERFACE,
609 .driver_info = 0,
610 }, {
611 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
612 | USB_DEVICE_ID_MATCH_DEVICE,
613 .idVendor = 0x04DD,
614 .idProduct = 0x8007, /* C-700 */
615 ZAURUS_MASTER_INTERFACE,
616 .driver_info = 0,
617 }, {
618 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
619 | USB_DEVICE_ID_MATCH_DEVICE,
620 .idVendor = 0x04DD,
621 .idProduct = 0x9031, /* C-750 C-760 */
622 ZAURUS_MASTER_INTERFACE,
623 .driver_info = 0,
624 }, {
625 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
626 | USB_DEVICE_ID_MATCH_DEVICE,
627 .idVendor = 0x04DD,
628 .idProduct = 0x9032, /* SL-6000 */
629 ZAURUS_MASTER_INTERFACE,
630 .driver_info = 0,
631 }, {
632 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
633 | USB_DEVICE_ID_MATCH_DEVICE,
634 .idVendor = 0x04DD,
635 .idProduct = 0x9032, /* SL-6000 */
636 ZAURUS_FAKE_INTERFACE,
637 .driver_info = 0,
638 }, {
639 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
640 | USB_DEVICE_ID_MATCH_DEVICE,
641 .idVendor = 0x04DD,
642 /* reported with some C860 units */
643 .idProduct = 0x9050, /* C-860 */
644 ZAURUS_MASTER_INTERFACE,
645 .driver_info = 0,
646 },
647
648 /* Olympus has some models with a Zaurus-compatible option.
649 * R-1000 uses a FreeScale i.MXL cpu (ARMv4T)
650 */
651 {
652 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
653 | USB_DEVICE_ID_MATCH_DEVICE,
654 .idVendor = 0x07B4,
655 .idProduct = 0x0F02, /* R-1000 */
656 ZAURUS_MASTER_INTERFACE,
657 .driver_info = 0,
658 },
659
660 /* LG Electronics VL600 wants additional headers on every frame */
661 {
662 USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM,
663 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
664 .driver_info = 0,
665 },
666
667 /* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */
668 {
669 USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM,
670 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
671 .driver_info = 0,
672 },
673
674 /* Novatel USB551L and MC551 - handled by qmi_wwan */
675 {
676 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0xB001, USB_CLASS_COMM,
677 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
678 .driver_info = 0,
679 },
680
681 /* Novatel E362 - handled by qmi_wwan */
682 {
683 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9010, USB_CLASS_COMM,
684 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
685 .driver_info = 0,
686 },
687
688 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */
689 {
690 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8195, USB_CLASS_COMM,
691 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
692 .driver_info = 0,
693 },
694
695 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */
696 {
697 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8196, USB_CLASS_COMM,
698 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
699 .driver_info = 0,
700 },
701
702 /* Dell Wireless 5804 (Novatel E371) - handled by qmi_wwan */
703 {
704 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x819b, USB_CLASS_COMM,
705 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
706 .driver_info = 0,
707 },
708
709 /* Novatel Expedite E371 - handled by qmi_wwan */
710 {
711 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9011, USB_CLASS_COMM,
712 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
713 .driver_info = 0,
714 },
715
716 /* HP lt2523 (Novatel E371) - handled by qmi_wwan */
717 {
718 USB_DEVICE_AND_INTERFACE_INFO(HP_VENDOR_ID, 0x421d, USB_CLASS_COMM,
719 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
720 .driver_info = 0,
721 },
722
723 /* AnyDATA ADU960S - handled by qmi_wwan */
724 {
725 USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, USB_CLASS_COMM,
726 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
727 .driver_info = 0,
728 },
729
730 /* Huawei E1820 - handled by qmi_wwan */
731 {
732 USB_DEVICE_INTERFACE_NUMBER(HUAWEI_VENDOR_ID, 0x14ac, 1),
733 .driver_info = 0,
734 },
735
736 /* Realtek RTL8152 Based USB 2.0 Ethernet Adapters */
737 {
738 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8152, USB_CLASS_COMM,
739 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
740 .driver_info = 0,
741 },
742
743 /* Realtek RTL8153 Based USB 3.0 Ethernet Adapters */
744 {
745 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8153, USB_CLASS_COMM,
746 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
747 .driver_info = 0,
748 },
749
750 /* Samsung USB Ethernet Adapters */
751 {
752 USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, 0xa101, USB_CLASS_COMM,
753 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
754 .driver_info = 0,
755 },
756
757 #if IS_ENABLED(CONFIG_USB_RTL8152)
758 /* Linksys USB3GIGV1 Ethernet Adapter */
759 {
760 USB_DEVICE_AND_INTERFACE_INFO(LINKSYS_VENDOR_ID, 0x0041, USB_CLASS_COMM,
761 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
762 .driver_info = 0,
763 },
764 #endif
765
766 /* Lenovo ThinkPad OneLink+ Dock (based on Realtek RTL8153) */
767 {
768 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3054, USB_CLASS_COMM,
769 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
770 .driver_info = 0,
771 },
772
773 /* ThinkPad USB-C Dock (based on Realtek RTL8153) */
774 {
775 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3062, USB_CLASS_COMM,
776 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
777 .driver_info = 0,
778 },
779
780 /* ThinkPad Thunderbolt 3 Dock (based on Realtek RTL8153) */
781 {
782 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3069, USB_CLASS_COMM,
783 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
784 .driver_info = 0,
785 },
786
787 /* ThinkPad Thunderbolt 3 Dock Gen 2 (based on Realtek RTL8153) */
788 {
789 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3082, USB_CLASS_COMM,
790 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
791 .driver_info = 0,
792 },
793
794 /* Lenovo Thinkpad USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */
795 {
796 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7205, USB_CLASS_COMM,
797 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
798 .driver_info = 0,
799 },
800
801 /* Lenovo USB C to Ethernet Adapter (based on Realtek RTL8153) */
802 {
803 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x720c, USB_CLASS_COMM,
804 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
805 .driver_info = 0,
806 },
807
808 /* Lenovo USB-C Travel Hub (based on Realtek RTL8153) */
809 {
810 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7214, USB_CLASS_COMM,
811 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
812 .driver_info = 0,
813 },
814
815 /* Lenovo Powered USB-C Travel Hub (4X90S92381, based on Realtek RTL8153) */
816 {
817 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x721e, USB_CLASS_COMM,
818 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
819 .driver_info = 0,
820 },
821
822 /* ThinkPad USB-C Dock Gen 2 (based on Realtek RTL8153) */
823 {
824 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0xa387, USB_CLASS_COMM,
825 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
826 .driver_info = 0,
827 },
828
829 /* NVIDIA Tegra USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */
830 {
831 USB_DEVICE_AND_INTERFACE_INFO(NVIDIA_VENDOR_ID, 0x09ff, USB_CLASS_COMM,
832 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
833 .driver_info = 0,
834 },
835
836 /* Microsoft Surface 2 dock (based on Realtek RTL8152) */
837 {
838 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07ab, USB_CLASS_COMM,
839 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
840 .driver_info = 0,
841 },
842
843 /* Microsoft Surface Ethernet Adapter (based on Realtek RTL8153) */
844 {
845 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07c6, USB_CLASS_COMM,
846 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
847 .driver_info = 0,
848 },
849
850 /* Microsoft Surface Ethernet Adapter (based on Realtek RTL8153B) */
851 {
852 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x0927, USB_CLASS_COMM,
853 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
854 .driver_info = 0,
855 },
856
857 /* TP-LINK UE300 USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */
858 {
859 USB_DEVICE_AND_INTERFACE_INFO(TPLINK_VENDOR_ID, 0x0601, USB_CLASS_COMM,
860 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
861 .driver_info = 0,
862 },
863
864 /* Aquantia AQtion USB to 5GbE Controller (based on AQC111U) */
865 {
866 USB_DEVICE_AND_INTERFACE_INFO(AQUANTIA_VENDOR_ID, 0xc101,
867 USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
868 USB_CDC_PROTO_NONE),
869 .driver_info = 0,
870 },
871
872 /* ASIX USB 3.1 Gen1 to 5G Multi-Gigabit Ethernet Adapter(based on AQC111U) */
873 {
874 USB_DEVICE_AND_INTERFACE_INFO(ASIX_VENDOR_ID, 0x2790, USB_CLASS_COMM,
875 USB_CDC_SUBCLASS_ETHERNET,
876 USB_CDC_PROTO_NONE),
877 .driver_info = 0,
878 },
879
880 /* ASIX USB 3.1 Gen1 to 2.5G Multi-Gigabit Ethernet Adapter(based on AQC112U) */
881 {
882 USB_DEVICE_AND_INTERFACE_INFO(ASIX_VENDOR_ID, 0x2791, USB_CLASS_COMM,
883 USB_CDC_SUBCLASS_ETHERNET,
884 USB_CDC_PROTO_NONE),
885 .driver_info = 0,
886 },
887
888 /* USB-C 3.1 to 5GBASE-T Ethernet Adapter (based on AQC111U) */
889 {
890 USB_DEVICE_AND_INTERFACE_INFO(0x20f4, 0xe05a, USB_CLASS_COMM,
891 USB_CDC_SUBCLASS_ETHERNET,
892 USB_CDC_PROTO_NONE),
893 .driver_info = 0,
894 },
895
896 /* QNAP QNA-UC5G1T USB to 5GbE Adapter (based on AQC111U) */
897 {
898 USB_DEVICE_AND_INTERFACE_INFO(0x1c04, 0x0015, USB_CLASS_COMM,
899 USB_CDC_SUBCLASS_ETHERNET,
900 USB_CDC_PROTO_NONE),
901 .driver_info = 0,
902 },
903
904 /* WHITELIST!!!
905 *
906 * CDC Ether uses two interfaces, not necessarily consecutive.
907 * We match the main interface, ignoring the optional device
908 * class so we could handle devices that aren't exclusively
909 * CDC ether.
910 *
911 * NOTE: this match must come AFTER entries blacklisting devices
912 * because of bugs/quirks in a given product (like Zaurus, above).
913 */
914 {
915 /* ZTE (Vodafone) K3805-Z */
916 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1003, USB_CLASS_COMM,
917 USB_CDC_SUBCLASS_ETHERNET,
918 USB_CDC_PROTO_NONE),
919 .driver_info = (unsigned long)&wwan_info,
920 }, {
921 /* ZTE (Vodafone) K3806-Z */
922 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1015, USB_CLASS_COMM,
923 USB_CDC_SUBCLASS_ETHERNET,
924 USB_CDC_PROTO_NONE),
925 .driver_info = (unsigned long)&wwan_info,
926 }, {
927 /* ZTE (Vodafone) K4510-Z */
928 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1173, USB_CLASS_COMM,
929 USB_CDC_SUBCLASS_ETHERNET,
930 USB_CDC_PROTO_NONE),
931 .driver_info = (unsigned long)&wwan_info,
932 }, {
933 /* ZTE (Vodafone) K3770-Z */
934 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1177, USB_CLASS_COMM,
935 USB_CDC_SUBCLASS_ETHERNET,
936 USB_CDC_PROTO_NONE),
937 .driver_info = (unsigned long)&wwan_info,
938 }, {
939 /* ZTE (Vodafone) K3772-Z */
940 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1181, USB_CLASS_COMM,
941 USB_CDC_SUBCLASS_ETHERNET,
942 USB_CDC_PROTO_NONE),
943 .driver_info = (unsigned long)&wwan_info,
944 }, {
945 /* Telit modules */
946 USB_VENDOR_AND_INTERFACE_INFO(0x1bc7, USB_CLASS_COMM,
947 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
948 .driver_info = (kernel_ulong_t) &wwan_info,
949 }, {
950 /* Dell DW5580 modules */
951 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x81ba, USB_CLASS_COMM,
952 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
953 .driver_info = (kernel_ulong_t)&wwan_info,
954 }, {
955 /* Huawei ME906 and ME909 */
956 USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0x15c1, USB_CLASS_COMM,
957 USB_CDC_SUBCLASS_ETHERNET,
958 USB_CDC_PROTO_NONE),
959 .driver_info = (unsigned long)&wwan_info,
960 }, {
961 /* ZTE modules */
962 USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, USB_CLASS_COMM,
963 USB_CDC_SUBCLASS_ETHERNET,
964 USB_CDC_PROTO_NONE),
965 .driver_info = (unsigned long)&zte_cdc_info,
966 }, {
967 /* U-blox TOBY-L2 */
968 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1143, USB_CLASS_COMM,
969 USB_CDC_SUBCLASS_ETHERNET,
970 USB_CDC_PROTO_NONE),
971 .driver_info = (unsigned long)&wwan_info,
972 }, {
973 /* U-blox SARA-U2 */
974 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1104, USB_CLASS_COMM,
975 USB_CDC_SUBCLASS_ETHERNET,
976 USB_CDC_PROTO_NONE),
977 .driver_info = (unsigned long)&wwan_info,
978 }, {
979 /* Cinterion PLS8 modem by GEMALTO */
980 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0061, USB_CLASS_COMM,
981 USB_CDC_SUBCLASS_ETHERNET,
982 USB_CDC_PROTO_NONE),
983 .driver_info = (unsigned long)&wwan_info,
984 }, {
985 /* Cinterion AHS3 modem by GEMALTO */
986 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0055, USB_CLASS_COMM,
987 USB_CDC_SUBCLASS_ETHERNET,
988 USB_CDC_PROTO_NONE),
989 .driver_info = (unsigned long)&wwan_info,
990 }, {
991 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
992 USB_CDC_PROTO_NONE),
993 .driver_info = (unsigned long) &cdc_info,
994 }, {
995 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM,
996 USB_CDC_PROTO_NONE),
997 .driver_info = (unsigned long)&wwan_info,
998
999 }, {
1000 /* Various Huawei modems with a network port like the UMG1831 */
1001 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_COMM,
1002 USB_CDC_SUBCLASS_ETHERNET, 255),
1003 .driver_info = (unsigned long)&wwan_info,
1004 },
1005 { }, /* END */
1006 };
1007 MODULE_DEVICE_TABLE(usb, products);
1008
1009 static struct usb_driver cdc_driver = {
1010 .name = "cdc_ether",
1011 .id_table = products,
1012 .probe = usbnet_probe,
1013 .disconnect = usbnet_disconnect,
1014 .suspend = usbnet_suspend,
1015 .resume = usbnet_resume,
1016 .reset_resume = usbnet_resume,
1017 .supports_autosuspend = 1,
1018 .disable_hub_initiated_lpm = 1,
1019 };
1020
1021 module_usb_driver(cdc_driver);
1022
1023 MODULE_AUTHOR("David Brownell");
1024 MODULE_DESCRIPTION("USB CDC Ethernet devices");
1025 MODULE_LICENSE("GPL");
1026