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mmc: block: fix lockdep splat when removing mmc_block module
[mirror_ubuntu-bionic-kernel.git] / drivers / net / usb / cdc_ether.c
CommitLineData
4324fd49
DB		 1/*
2 * CDC Ethernet based networking peripherals
3 * Copyright (C) 2003-2005 by David Brownell
ad55d71a 4 * Copyright (C) 2006 by Ole Andre Vadla Ravnas (ActiveSync)
4324fd49
DB		 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
9cb00073 17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
4324fd49
DB		 18 */
19
20// #define DEBUG // error path messages, extra info
21// #define VERBOSE // more; success messages
22
4324fd49 23#include <linux/module.h>
4324fd49
DB		 24#include <linux/netdevice.h>
25#include <linux/etherdevice.h>
4324fd49
DB		 26#include <linux/ethtool.h>
27#include <linux/workqueue.h>
28#include <linux/mii.h>
29#include <linux/usb.h>
a8c28f23 30#include <linux/usb/cdc.h>
3692e94f 31#include <linux/usb/usbnet.h>
4324fd49
DB		 32
33
8857ec28 34#if IS_ENABLED(CONFIG_USB_NET_RNDIS_HOST)
ad55d71a
OAVR		 35
36static int is_rndis(struct usb_interface_descriptor *desc)
37{
8e95a202
JP		 38 return (desc->bInterfaceClass == USB_CLASS_COMM &&
39 desc->bInterfaceSubClass == 2 &&
40 desc->bInterfaceProtocol == 0xff);
ad55d71a
OAVR		 41}
42
43static int is_activesync(struct usb_interface_descriptor *desc)
44{
8e95a202
JP		 45 return (desc->bInterfaceClass == USB_CLASS_MISC &&
46 desc->bInterfaceSubClass == 1 &&
47 desc->bInterfaceProtocol == 1);
ad55d71a
OAVR		 48}
49
7e99eedd
TB		 50static int is_wireless_rndis(struct usb_interface_descriptor *desc)
51{
8e95a202
JP		 52 return (desc->bInterfaceClass == USB_CLASS_WIRELESS_CONTROLLER &&
53 desc->bInterfaceSubClass == 1 &&
54 desc->bInterfaceProtocol == 3);
7e99eedd
TB		 55}
56
ad55d71a
OAVR		 57#else
58
59#define is_rndis(desc) 0
60#define is_activesync(desc) 0
7e99eedd 61#define is_wireless_rndis(desc) 0
ad55d71a
OAVR		 62
63#endif
64
21851264
JS		 65static 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
d80c679b
OB		 70static void usbnet_cdc_update_filter(struct usbnet *dev)
71{
72 struct cdc_state *info = (void *) &dev->data;
73 struct usb_interface *intf = info->control;
f46ad73a 74 struct net_device *net = dev->net;
d80c679b 75
f46ad73a
ON		 76 u16 cdc_filter = USB_CDC_PACKET_TYPE_DIRECTED
77 | USB_CDC_PACKET_TYPE_BROADCAST;
d80c679b 78
f46ad73a
ON		 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
d80c679b 82 */
f46ad73a
ON		 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;
d80c679b
OB		 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
8857ec28 100/* probes control interface, claims data interface, collects the bulk
4324fd49
DB		 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 */
105int 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;
6eddcb4c 113 bool android_rndis_quirk = false;
4324fd49 114 struct usb_driver *driver = driver_of(intf);
823bd343 115 struct usb_cdc_parsed_header header;
4324fd49 116
8857ec28 117 if (sizeof(dev->data) < sizeof(*info))
4324fd49
DB		 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;
f5260f02 129 dev_dbg(&intf->dev, "CDC descriptors on config\n");
4324fd49
DB		 130 }
131
4149b72e
DB		 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
4324fd49
DB		 148 /* this assumes that if there's a non-RNDIS vendor variant
149 * of cdc-acm, it'll fail RNDIS requests cleanly.
150 */
8e95a202
JP		 151 rndis = (is_rndis(&intf->cur_altsetting->desc) ||
152 is_activesync(&intf->cur_altsetting->desc) ||
153 is_wireless_rndis(&intf->cur_altsetting->desc));
4324fd49 154
8857ec28 155 memset(info, 0, sizeof(*info));
4324fd49 156 info->control = intf;
823bd343
ON		 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;
29c6dd59
ON		 163 if (!info->u) {
164 if (rndis)
165 goto skip;
166 else /* in that case a quirk is mandatory */
167 goto bad_desc;
168 }
823bd343
ON		 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;
4324fd49 188 }
823bd343
ON		 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 }
214skip:
215 if ( rndis &&
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) {
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;
4324fd49
DB		 242 }
243
823bd343
ON		 244
245
786e3dfb
BD		 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.
6eddcb4c
BM		 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.
ad55d71a 253 */
6eddcb4c 254 if (rndis && (!info->u || android_rndis_quirk)) {
ad55d71a
OAVR		 255 info->control = usb_ifnum_to_if(dev->udev, 0);
256 info->data = usb_ifnum_to_if(dev->udev, 1);
6eddcb4c 257 if (!info->control || !info->data || info->control != intf) {
ad55d71a 258 dev_dbg(&intf->dev,
786e3dfb 259 "rndis: master #0/%p slave #1/%p\n",
ad55d71a
OAVR		 260 info->control,
261 info->data);
262 goto bad_desc;
263 }
264
29c6dd59 265 } else if (!info->header || (!rndis && !info->ether)) {
4324fd49
DB		 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 */
1fc4c84d
BM		 276 if (info->data != info->control) {
277 status = usb_driver_claim_interface(driver, info->data, dev);
278 if (status < 0)
279 return status;
280 }
4324fd49
DB		 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);
1fc4c84d
BM		 285 if (info->data != info->control)
286 usb_driver_release_interface(driver, info->data);
4324fd49
DB		 287 return status;
288 }
289
290 /* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */
1fc4c84d
BM		 291 if (info->data != info->control)
292 dev->status = NULL;
4324fd49
DB		 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;
8e95a202
JP		 298 if (!usb_endpoint_is_int_in(desc) ||
299 (le16_to_cpu(desc->wMaxPacketSize)
300 < sizeof(struct usb_cdc_notification)) ||
301 !desc->bInterval) {
4324fd49
DB		 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 }
c472ab68 312
7f65b1f5
ON		 313 return 0;
314
315bad_desc:
316 dev_info(&dev->udev->dev, "bad CDC descriptors\n");
317 return -ENODEV;
318}
319EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind);
320
321
322/* like usbnet_generic_cdc_bind() but handles filter initialization
323 * correctly
324 */
325int 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
c472ab68
ON		 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 */
d80c679b
OB		 338 usbnet_cdc_update_filter(dev);
339
7f65b1f5
ON		 340bail_out:
341 return rv;
4324fd49 342}
7f65b1f5 343EXPORT_SYMBOL_GPL(usbnet_ether_cdc_bind);
4324fd49
DB		 344
345void 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
1fc4c84d
BM		 350 /* combined interface - nothing to do */
351 if (info->data == info->control)
352 return;
353
4324fd49
DB		 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}
370EXPORT_SYMBOL_GPL(usbnet_cdc_unbind);
371
8857ec28 372/* Communications Device Class, Ethernet Control model
4324fd49
DB		 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.
8857ec28 380 */
4324fd49
DB		 381
382static void dumpspeed(struct usbnet *dev, __le32 *speeds)
383{
a475f603
JP		 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);
4324fd49
DB		 388}
389
7a635ea9 390void usbnet_cdc_status(struct usbnet *dev, struct urb *urb)
4324fd49
DB		 391{
392 struct usb_cdc_notification *event;
393
8857ec28 394 if (urb->actual_length < sizeof(*event))
4324fd49
DB		 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:
a475f603
JP		 406 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n",
407 event->wValue ? "on" : "off");
a6bda459 408 usbnet_link_change(dev, !!event->wValue, 0);
4324fd49
DB		 409 break;
410 case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */
a475f603
JP		 411 netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n",
412 urb->actual_length);
8857ec28 413 if (urb->actual_length != (sizeof(*event) + 8))
4324fd49
DB		 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:
60b86755
JP		 422 netdev_err(dev->net, "CDC: unexpected notification %02x!\n",
423 event->bNotificationType);
4324fd49
DB		 424 break;
425 }
426}
7a635ea9 427EXPORT_SYMBOL_GPL(usbnet_cdc_status);
4324fd49 428
7a635ea9 429int usbnet_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
4324fd49
DB		 430{
431 int status;
432 struct cdc_state *info = (void *) &dev->data;
433
d632eb1b
GKH		 434 BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data)
435 < sizeof(struct cdc_state)));
436
7f65b1f5 437 status = usbnet_ether_cdc_bind(dev, intf);
4324fd49
DB		 438 if (status < 0)
439 return status;
440
03ad032b 441 status = usbnet_get_ethernet_addr(dev, info->ether->iMACAddress);
4324fd49
DB		 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
4324fd49
DB		 448 return 0;
449}
7a635ea9 450EXPORT_SYMBOL_GPL(usbnet_cdc_bind);
4324fd49 451
bfe9b9d2
KE		 452static 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 */
469static 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
d5c83d0d
KE		 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 */
37c9782c 486static void usbnet_cdc_zte_status(struct usbnet *dev, struct urb *urb)
d5c83d0d
KE		 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
4324fd49
DB		 510static const struct driver_info cdc_info = {
511 .description = "CDC Ethernet Device",
c261344d 512 .flags = FLAG_ETHER | FLAG_POINTTOPOINT,
7a635ea9 513 .bind = usbnet_cdc_bind,
4324fd49 514 .unbind = usbnet_cdc_unbind,
7a635ea9 515 .status = usbnet_cdc_status,
b77e26d1 516 .set_rx_mode = usbnet_cdc_update_filter,
a5e40708 517 .manage_power = usbnet_manage_power,
4324fd49
DB		 518};
519
bfe9b9d2
KE		 520static 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,
d5c83d0d 525 .status = usbnet_cdc_zte_status,
bfe9b9d2
KE		 526 .set_rx_mode = usbnet_cdc_update_filter,
527 .manage_power = usbnet_manage_power,
528 .rx_fixup = usbnet_cdc_zte_rx_fixup,
529};
530
b3c914aa 531static const struct driver_info wwan_info = {
e1e499ee
MH		 532 .description = "Mobile Broadband Network Device",
533 .flags = FLAG_WWAN,
7a635ea9 534 .bind = usbnet_cdc_bind,
e1e499ee 535 .unbind = usbnet_cdc_unbind,
7a635ea9 536 .status = usbnet_cdc_status,
b77e26d1 537 .set_rx_mode = usbnet_cdc_update_filter,
a5e40708 538 .manage_power = usbnet_manage_power,
e1e499ee
MH		 539};
540
4324fd49
DB		 541/*-------------------------------------------------------------------------*/
542
b3c914aa 543#define HUAWEI_VENDOR_ID 0x12D1
4e6304b8 544#define NOVATEL_VENDOR_ID 0x1410
68d8318b 545#define ZTE_VENDOR_ID 0x19D2
0370acd4 546#define DELL_VENDOR_ID 0x413C
ac718b69 547#define REALTEK_VENDOR_ID 0x0bda
43779f8d 548#define SAMSUNG_VENDOR_ID 0x04e8
347eec34 549#define LENOVO_VENDOR_ID 0x17ef
d065c3c1 550#define NVIDIA_VENDOR_ID 0x0955
5b9f5751 551#define HP_VENDOR_ID 0x03f0
d5b07ccc 552#define MICROSOFT_VENDOR_ID 0x045e
4324fd49 553
8857ec28
FP		 554static const struct usb_device_id products[] = {
555/* BLACKLIST !!
4324fd49
DB		 556 *
557 * First blacklist any products that are egregiously nonconformant
558 * with the CDC Ethernet specs. Minor braindamage we cope with; when
559 * they're not even trying, needing a separate driver is only the first
560 * of the differences to show up.
561 */
562
563#define ZAURUS_MASTER_INTERFACE \
564 .bInterfaceClass = USB_CLASS_COMM, \
565 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \
566 .bInterfaceProtocol = USB_CDC_PROTO_NONE
567
568/* SA-1100 based Sharp Zaurus ("collie"), or compatible;
569 * wire-incompatible with true CDC Ethernet implementations.
570 * (And, it seems, needlessly so...)
571 */
572{
573 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
574 | USB_DEVICE_ID_MATCH_DEVICE,
575 .idVendor = 0x04DD,
576 .idProduct = 0x8004,
577 ZAURUS_MASTER_INTERFACE,
578 .driver_info = 0,
579},
580
581/* PXA-25x based Sharp Zaurii. Note that it seems some of these
582 * (later models especially) may have shipped only with firmware
583 * advertising false "CDC MDLM" compatibility ... but we're not
584 * clear which models did that, so for now let's assume the worst.
585 */
586{
587 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
588 | USB_DEVICE_ID_MATCH_DEVICE,
589 .idVendor = 0x04DD,
590 .idProduct = 0x8005, /* A-300 */
591 ZAURUS_MASTER_INTERFACE,
592 .driver_info = 0,
593}, {
594 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
595 | USB_DEVICE_ID_MATCH_DEVICE,
596 .idVendor = 0x04DD,
597 .idProduct = 0x8006, /* B-500/SL-5600 */
598 ZAURUS_MASTER_INTERFACE,
599 .driver_info = 0,
600}, {
601 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
8857ec28 602 | USB_DEVICE_ID_MATCH_DEVICE,
4324fd49
DB		 603 .idVendor = 0x04DD,
604 .idProduct = 0x8007, /* C-700 */
605 ZAURUS_MASTER_INTERFACE,
606 .driver_info = 0,
607}, {
608 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
609 | USB_DEVICE_ID_MATCH_DEVICE,
610 .idVendor = 0x04DD,
611 .idProduct = 0x9031, /* C-750 C-760 */
612 ZAURUS_MASTER_INTERFACE,
613 .driver_info = 0,
614}, {
615 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
616 | USB_DEVICE_ID_MATCH_DEVICE,
617 .idVendor = 0x04DD,
618 .idProduct = 0x9032, /* SL-6000 */
619 ZAURUS_MASTER_INTERFACE,
620 .driver_info = 0,
621}, {
622 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
623 | USB_DEVICE_ID_MATCH_DEVICE,
624 .idVendor = 0x04DD,
625 /* reported with some C860 units */
626 .idProduct = 0x9050, /* C-860 */
627 ZAURUS_MASTER_INTERFACE,
628 .driver_info = 0,
629},
630
efcaa205
DB		 631/* Olympus has some models with a Zaurus-compatible option.
632 * R-1000 uses a FreeScale i.MXL cpu (ARMv4T)
633 */
634{
635 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
636 | USB_DEVICE_ID_MATCH_DEVICE,
637 .idVendor = 0x07B4,
638 .idProduct = 0x0F02, /* R-1000 */
639 ZAURUS_MASTER_INTERFACE,
640 .driver_info = 0,
641},
642
7a635ea9
AZ		 643/* LG Electronics VL600 wants additional headers on every frame */
644{
645 USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM,
646 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
6d74eb94 647 .driver_info = 0,
7a635ea9
AZ		 648},
649
ee932bf9
ST		 650/* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */
651{
652 USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM,
653 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
654 .driver_info = 0,
655},
656
f8295ec2
DW		 657/* Novatel USB551L and MC551 - handled by qmi_wwan */
658{
c39ba1c2
DW		 659 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0xB001, USB_CLASS_COMM,
660 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
f8295ec2
DW		 661 .driver_info = 0,
662},
663
664/* Novatel E362 - handled by qmi_wwan */
665{
c39ba1c2
DW		 666 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9010, USB_CLASS_COMM,
667 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
f8295ec2
DW		 668 .driver_info = 0,
669},
670
0370acd4
DW		 671/* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */
672{
673 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8195, USB_CLASS_COMM,
674 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
675 .driver_info = 0,
676},
677
678/* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */
679{
680 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8196, USB_CLASS_COMM,
681 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
682 .driver_info = 0,
683},
684
7fdb7846
DW		 685/* Dell Wireless 5804 (Novatel E371) - handled by qmi_wwan */
686{
687 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x819b, USB_CLASS_COMM,
688 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
689 .driver_info = 0,
690},
691
7b5939ba
YY		 692/* Novatel Expedite E371 - handled by qmi_wwan */
693{
694 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9011, USB_CLASS_COMM,
695 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
696 .driver_info = 0,
697},
698
5b9f5751
BM		 699/* HP lt2523 (Novatel E371) - handled by qmi_wwan */
700{
701 USB_DEVICE_AND_INTERFACE_INFO(HP_VENDOR_ID, 0x421d, USB_CLASS_COMM,
702 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
703 .driver_info = 0,
704},
705
45d213f5
DW		 706/* AnyDATA ADU960S - handled by qmi_wwan */
707{
708 USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, USB_CLASS_COMM,
709 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
710 .driver_info = 0,
711},
712
c2020be3
BM		 713/* Huawei E1820 - handled by qmi_wwan */
714{
715 USB_DEVICE_INTERFACE_NUMBER(HUAWEI_VENDOR_ID, 0x14ac, 1),
716 .driver_info = 0,
717},
718
ac718b69 719/* Realtek RTL8152 Based USB 2.0 Ethernet Adapters */
ac718b69 720{
721 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8152, USB_CLASS_COMM,
722 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
723 .driver_info = 0,
724},
c073f666 725
726/* Realtek RTL8153 Based USB 3.0 Ethernet Adapters */
727{
728 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8153, USB_CLASS_COMM,
729 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
730 .driver_info = 0,
731},
ac718b69 732
10c32717 733/* Samsung USB Ethernet Adapters */
734{
735 USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, 0xa101, USB_CLASS_COMM,
736 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
737 .driver_info = 0,
738},
739
d248cafc 740/* ThinkPad USB-C Dock (based on Realtek RTL8153) */
741{
742 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3062, USB_CLASS_COMM,
743 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
744 .driver_info = 0,
745},
746
747/* ThinkPad Thunderbolt 3 Dock (based on Realtek RTL8153) */
748{
749 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3069, USB_CLASS_COMM,
750 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
751 .driver_info = 0,
752},
753
347eec34
CH		 754/* Lenovo Thinkpad USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */
755{
756 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7205, USB_CLASS_COMM,
757 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
758 .driver_info = 0,
759},
760
d248cafc 761/* Lenovo USB C to Ethernet Adapter (based on Realtek RTL8153) */
762{
763 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x720c, USB_CLASS_COMM,
764 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
765 .driver_info = 0,
766},
767
768/* Lenovo USB-C Travel Hub (based on Realtek RTL8153) */
769{
770 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7214, USB_CLASS_COMM,
771 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
772 .driver_info = 0,
773},
774
d065c3c1
ZL		 775/* NVIDIA Tegra USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */
776{
777 USB_DEVICE_AND_INTERFACE_INFO(NVIDIA_VENDOR_ID, 0x09ff, USB_CLASS_COMM,
d5b07ccc
RR		 778 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
779 .driver_info = 0,
780},
781
782/* Microsoft Surface 2 dock (based on Realtek RTL8152) */
783{
784 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07ab, USB_CLASS_COMM,
785 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
786 .driver_info = 0,
787},
788
789/* Microsoft Surface 3 dock (based on Realtek RTL8153) */
790{
791 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07c6, USB_CLASS_COMM,
d065c3c1
ZL		 792 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
793 .driver_info = 0,
794},
795
8857ec28 796/* WHITELIST!!!
4324fd49
DB		 797 *
798 * CDC Ether uses two interfaces, not necessarily consecutive.
799 * We match the main interface, ignoring the optional device
800 * class so we could handle devices that aren't exclusively
801 * CDC ether.
802 *
803 * NOTE: this match must come AFTER entries blacklisting devices
804 * because of bugs/quirks in a given product (like Zaurus, above).
805 */
806{
68d8318b 807 /* ZTE (Vodafone) K3805-Z */
d82a7f54
FP		 808 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1003, USB_CLASS_COMM,
809 USB_CDC_SUBCLASS_ETHERNET,
810 USB_CDC_PROTO_NONE),
68d8318b
ABSS		 811 .driver_info = (unsigned long)&wwan_info,
812}, {
813 /* ZTE (Vodafone) K3806-Z */
d82a7f54
FP		 814 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1015, USB_CLASS_COMM,
815 USB_CDC_SUBCLASS_ETHERNET,
816 USB_CDC_PROTO_NONE),
68d8318b
ABSS		 817 .driver_info = (unsigned long)&wwan_info,
818}, {
819 /* ZTE (Vodafone) K4510-Z */
d82a7f54
FP		 820 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1173, USB_CLASS_COMM,
821 USB_CDC_SUBCLASS_ETHERNET,
822 USB_CDC_PROTO_NONE),
68d8318b
ABSS		 823 .driver_info = (unsigned long)&wwan_info,
824}, {
825 /* ZTE (Vodafone) K3770-Z */
d82a7f54
FP		 826 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1177, USB_CLASS_COMM,
827 USB_CDC_SUBCLASS_ETHERNET,
828 USB_CDC_PROTO_NONE),
68d8318b
ABSS		 829 .driver_info = (unsigned long)&wwan_info,
830}, {
831 /* ZTE (Vodafone) K3772-Z */
d82a7f54
FP		 832 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1181, USB_CLASS_COMM,
833 USB_CDC_SUBCLASS_ETHERNET,
834 USB_CDC_PROTO_NONE),
68d8318b 835 .driver_info = (unsigned long)&wwan_info,
00928204
FP		 836}, {
837 /* Telit modules */
838 USB_VENDOR_AND_INTERFACE_INFO(0x1bc7, USB_CLASS_COMM,
839 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
840 .driver_info = (kernel_ulong_t) &wwan_info,
0b88393c
DP		 841}, {
842 /* Dell DW5580 modules */
843 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x81ba, USB_CLASS_COMM,
844 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
845 .driver_info = (kernel_ulong_t)&wwan_info,
bfe9b9d2
KE		 846}, {
847 /* ZTE modules */
848 USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, USB_CLASS_COMM,
849 USB_CDC_SUBCLASS_ETHERNET,
850 USB_CDC_PROTO_NONE),
851 .driver_info = (unsigned long)&zte_cdc_info,
4e6304b8 852}, {
4324fd49
DB		 853 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
854 USB_CDC_PROTO_NONE),
855 .driver_info = (unsigned long) &cdc_info,
cac477e8 856}, {
21851264
JS		 857 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM,
858 USB_CDC_PROTO_NONE),
b3c914aa 859 .driver_info = (unsigned long)&wwan_info,
21851264 860
b3c914aa
DW		 861}, {
862 /* Various Huawei modems with a network port like the UMG1831 */
d82a7f54
FP		 863 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_COMM,
864 USB_CDC_SUBCLASS_ETHERNET, 255),
b3c914aa 865 .driver_info = (unsigned long)&wwan_info,
4324fd49 866},
8857ec28 867 { }, /* END */
4324fd49
DB		 868};
869MODULE_DEVICE_TABLE(usb, products);
870
871static struct usb_driver cdc_driver = {
4324fd49
DB		 872 .name = "cdc_ether",
873 .id_table = products,
874 .probe = usbnet_probe,
875 .disconnect = usbnet_disconnect,
876 .suspend = usbnet_suspend,
877 .resume = usbnet_resume,
7f515790 878 .reset_resume = usbnet_resume,
69ee472f 879 .supports_autosuspend = 1,
e1f12eb6 880 .disable_hub_initiated_lpm = 1,
4324fd49
DB		 881};
882
d632eb1b 883module_usb_driver(cdc_driver);
4324fd49
DB		 884
885MODULE_AUTHOR("David Brownell");
886MODULE_DESCRIPTION("USB CDC Ethernet devices");
887MODULE_LICENSE("GPL");
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