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Merge tag 'x86-fpu-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
[thirdparty/linux.git] / drivers / net / usb / cdc_ether.c
CommitLineData
1ccea77e 1// SPDX-License-Identifier: GPL-2.0-or-later
4324fd49
DB		 2/*
3 * CDC Ethernet based networking peripherals
4 * Copyright (C) 2003-2005 by David Brownell
ad55d71a 5 * Copyright (C) 2006 by Ole Andre Vadla Ravnas (ActiveSync)
4324fd49
DB		 6 */
7
8// #define DEBUG // error path messages, extra info
9// #define VERBOSE // more; success messages
10
4324fd49 11#include <linux/module.h>
4324fd49
DB		 12#include <linux/netdevice.h>
13#include <linux/etherdevice.h>
4324fd49
DB		 14#include <linux/ethtool.h>
15#include <linux/workqueue.h>
16#include <linux/mii.h>
17#include <linux/usb.h>
a8c28f23 18#include <linux/usb/cdc.h>
3692e94f 19#include <linux/usb/usbnet.h>
4324fd49
DB		 20
21
8857ec28 22#if IS_ENABLED(CONFIG_USB_NET_RNDIS_HOST)
ad55d71a
OAVR		 23
24static int is_rndis(struct usb_interface_descriptor *desc)
25{
8e95a202
JP		 26 return (desc->bInterfaceClass == USB_CLASS_COMM &&
27 desc->bInterfaceSubClass == 2 &&
28 desc->bInterfaceProtocol == 0xff);
ad55d71a
OAVR		 29}
30
31static int is_activesync(struct usb_interface_descriptor *desc)
32{
8e95a202
JP		 33 return (desc->bInterfaceClass == USB_CLASS_MISC &&
34 desc->bInterfaceSubClass == 1 &&
35 desc->bInterfaceProtocol == 1);
ad55d71a
OAVR		 36}
37
7e99eedd
TB		 38static int is_wireless_rndis(struct usb_interface_descriptor *desc)
39{
8e95a202
JP		 40 return (desc->bInterfaceClass == USB_CLASS_WIRELESS_CONTROLLER &&
41 desc->bInterfaceSubClass == 1 &&
42 desc->bInterfaceProtocol == 3);
7e99eedd
TB		 43}
44
63ba395c
AM		 45static 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
ad55d71a
OAVR		 52#else
53
54#define is_rndis(desc) 0
55#define is_activesync(desc) 0
7e99eedd 56#define is_wireless_rndis(desc) 0
63ba395c 57#define is_novatel_rndis(desc) 0
ad55d71a
OAVR		 58
59#endif
60
21851264
JS		 61static 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
d80c679b
OB		 66static void usbnet_cdc_update_filter(struct usbnet *dev)
67{
68 struct cdc_state *info = (void *) &dev->data;
69 struct usb_interface *intf = info->control;
f46ad73a 70 struct net_device *net = dev->net;
d80c679b 71
f46ad73a
ON		 72 u16 cdc_filter = USB_CDC_PACKET_TYPE_DIRECTED
73 | USB_CDC_PACKET_TYPE_BROADCAST;
d80c679b 74
f46ad73a
ON		 75 /* filtering on the device is an optional feature and not worth
76 * the hassle so we just roughly care about snooping and if any
77 * multicast is requested, we take every multicast
d80c679b 78 */
f46ad73a
ON		 79 if (net->flags & IFF_PROMISC)
80 cdc_filter |= USB_CDC_PACKET_TYPE_PROMISCUOUS;
81 if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI))
82 cdc_filter |= USB_CDC_PACKET_TYPE_ALL_MULTICAST;
d80c679b
OB		 83
84 usb_control_msg(dev->udev,
85 usb_sndctrlpipe(dev->udev, 0),
86 USB_CDC_SET_ETHERNET_PACKET_FILTER,
87 USB_TYPE_CLASS | USB_RECIP_INTERFACE,
88 cdc_filter,
89 intf->cur_altsetting->desc.bInterfaceNumber,
90 NULL,
91 0,
92 USB_CTRL_SET_TIMEOUT
93 );
94}
95
8857ec28 96/* probes control interface, claims data interface, collects the bulk
4324fd49
DB		 97 * endpoints, activates data interface (if needed), maybe sets MTU.
98 * all pure cdc, except for certain firmware workarounds, and knowing
99 * that rndis uses one different rule.
100 */
101int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
102{
103 u8 *buf = intf->cur_altsetting->extra;
104 int len = intf->cur_altsetting->extralen;
105 struct usb_interface_descriptor *d;
106 struct cdc_state *info = (void *) &dev->data;
107 int status;
108 int rndis;
6eddcb4c 109 bool android_rndis_quirk = false;
4324fd49 110 struct usb_driver *driver = driver_of(intf);
823bd343 111 struct usb_cdc_parsed_header header;
4324fd49 112
8857ec28 113 if (sizeof(dev->data) < sizeof(*info))
4324fd49
DB		 114 return -EDOM;
115
116 /* expect strict spec conformance for the descriptors, but
117 * cope with firmware which stores them in the wrong place
118 */
119 if (len == 0 && dev->udev->actconfig->extralen) {
120 /* Motorola SB4100 (and others: Brad Hards says it's
121 * from a Broadcom design) put CDC descriptors here
122 */
123 buf = dev->udev->actconfig->extra;
124 len = dev->udev->actconfig->extralen;
f5260f02 125 dev_dbg(&intf->dev, "CDC descriptors on config\n");
4324fd49
DB		 126 }
127
4149b72e
DB		 128 /* Maybe CDC descriptors are after the endpoint? This bug has
129 * been seen on some 2Wire Inc RNDIS-ish products.
130 */
131 if (len == 0) {
132 struct usb_host_endpoint *hep;
133
134 hep = intf->cur_altsetting->endpoint;
135 if (hep) {
136 buf = hep->extra;
137 len = hep->extralen;
138 }
139 if (len)
140 dev_dbg(&intf->dev,
141 "CDC descriptors on endpoint\n");
142 }
143
4324fd49
DB		 144 /* this assumes that if there's a non-RNDIS vendor variant
145 * of cdc-acm, it'll fail RNDIS requests cleanly.
146 */
8e95a202
JP		 147 rndis = (is_rndis(&intf->cur_altsetting->desc) ||
148 is_activesync(&intf->cur_altsetting->desc) ||
63ba395c
AM		 149 is_wireless_rndis(&intf->cur_altsetting->desc) ||
150 is_novatel_rndis(&intf->cur_altsetting->desc));
4324fd49 151
8857ec28 152 memset(info, 0, sizeof(*info));
4324fd49 153 info->control = intf;
823bd343
ON		 154
155 cdc_parse_cdc_header(&header, intf, buf, len);
156
157 info->u = header.usb_cdc_union_desc;
158 info->header = header.usb_cdc_header_desc;
159 info->ether = header.usb_cdc_ether_desc;
29c6dd59
ON		 160 if (!info->u) {
161 if (rndis)
162 goto skip;
163 else /* in that case a quirk is mandatory */
164 goto bad_desc;
165 }
823bd343
ON		 166 /* we need a master/control interface (what we're
167 * probed with) and a slave/data interface; union
168 * descriptors sort this all out.
169 */
a29c3c09
BM		 170 info->control = usb_ifnum_to_if(dev->udev, info->u->bMasterInterface0);
171 info->data = usb_ifnum_to_if(dev->udev, info->u->bSlaveInterface0);
823bd343
ON		 172 if (!info->control || !info->data) {
173 dev_dbg(&intf->dev,
174 "master #%u/%p slave #%u/%p\n",
175 info->u->bMasterInterface0,
176 info->control,
177 info->u->bSlaveInterface0,
178 info->data);
179 /* fall back to hard-wiring for RNDIS */
180 if (rndis) {
181 android_rndis_quirk = true;
182 goto skip;
4324fd49 183 }
823bd343
ON		 184 goto bad_desc;
185 }
186 if (info->control != intf) {
187 dev_dbg(&intf->dev, "bogus CDC Union\n");
188 /* Ambit USB Cable Modem (and maybe others)
189 * interchanges master and slave interface.
190 */
191 if (info->data == intf) {
192 info->data = info->control;
193 info->control = intf;
194 } else
195 goto bad_desc;
196 }
197
198 /* some devices merge these - skip class check */
199 if (info->control == info->data)
200 goto skip;
201
202 /* a data interface altsetting does the real i/o */
203 d = &info->data->cur_altsetting->desc;
204 if (d->bInterfaceClass != USB_CLASS_CDC_DATA) {
a29c3c09 205 dev_dbg(&intf->dev, "slave class %u\n", d->bInterfaceClass);
823bd343
ON		 206 goto bad_desc;
207 }
208skip:
4d7ffcf3
BM		 209 /* Communcation class functions with bmCapabilities are not
210 * RNDIS. But some Wireless class RNDIS functions use
211 * bmCapabilities for their own purpose. The failsafe is
212 * therefore applied only to Communication class RNDIS
213 * functions. The rndis test is redundant, but a cheap
214 * optimization.
215 */
216 if (rndis && is_rndis(&intf->cur_altsetting->desc) &&
217 header.usb_cdc_acm_descriptor &&
a29c3c09
BM		 218 header.usb_cdc_acm_descriptor->bmCapabilities) {
219 dev_dbg(&intf->dev,
220 "ACM capabilities %02x, not really RNDIS?\n",
221 header.usb_cdc_acm_descriptor->bmCapabilities);
222 goto bad_desc;
823bd343
ON		 223 }
224
2cb80187 225 if (header.usb_cdc_ether_desc && info->ether->wMaxSegmentSize) {
823bd343
ON		 226 dev->hard_mtu = le16_to_cpu(info->ether->wMaxSegmentSize);
227 /* because of Zaurus, we may be ignoring the host
228 * side link address we were given.
229 */
230 }
231
232 if (header.usb_cdc_mdlm_desc &&
a29c3c09 233 memcmp(header.usb_cdc_mdlm_desc->bGUID, mbm_guid, 16)) {
823bd343
ON		 234 dev_dbg(&intf->dev, "GUID doesn't match\n");
235 goto bad_desc;
236 }
237
238 if (header.usb_cdc_mdlm_detail_desc &&
239 header.usb_cdc_mdlm_detail_desc->bLength <
240 (sizeof(struct usb_cdc_mdlm_detail_desc) + 1)) {
241 dev_dbg(&intf->dev, "Descriptor too short\n");
242 goto bad_desc;
4324fd49
DB		 243 }
244
823bd343
ON		 245
246
786e3dfb
BD		 247 /* Microsoft ActiveSync based and some regular RNDIS devices lack the
248 * CDC descriptors, so we'll hard-wire the interfaces and not check
249 * for descriptors.
6eddcb4c
BM		 250 *
251 * Some Android RNDIS devices have a CDC Union descriptor pointing
252 * to non-existing interfaces. Ignore that and attempt the same
253 * hard-wired 0 and 1 interfaces.
ad55d71a 254 */
6eddcb4c 255 if (rndis && (!info->u || android_rndis_quirk)) {
ad55d71a
OAVR		 256 info->control = usb_ifnum_to_if(dev->udev, 0);
257 info->data = usb_ifnum_to_if(dev->udev, 1);
6eddcb4c 258 if (!info->control || !info->data || info->control != intf) {
ad55d71a 259 dev_dbg(&intf->dev,
786e3dfb 260 "rndis: master #0/%p slave #1/%p\n",
ad55d71a
OAVR		 261 info->control,
262 info->data);
263 goto bad_desc;
264 }
265
29c6dd59 266 } else if (!info->header || (!rndis && !info->ether)) {
4324fd49
DB		 267 dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n",
268 info->header ? "" : "header ",
269 info->u ? "" : "union ",
270 info->ether ? "" : "ether ");
271 goto bad_desc;
272 }
273
274 /* claim data interface and set it up ... with side effects.
275 * network traffic can't flow until an altsetting is enabled.
276 */
1fc4c84d
BM		 277 if (info->data != info->control) {
278 status = usb_driver_claim_interface(driver, info->data, dev);
279 if (status < 0)
280 return status;
281 }
4324fd49
DB		 282 status = usbnet_get_endpoints(dev, info->data);
283 if (status < 0) {
284 /* ensure immediate exit from usbnet_disconnect */
285 usb_set_intfdata(info->data, NULL);
1fc4c84d
BM		 286 if (info->data != info->control)
287 usb_driver_release_interface(driver, info->data);
4324fd49
DB		 288 return status;
289 }
290
291 /* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */
1fc4c84d
BM		 292 if (info->data != info->control)
293 dev->status = NULL;
4324fd49
DB		 294 if (info->control->cur_altsetting->desc.bNumEndpoints == 1) {
295 struct usb_endpoint_descriptor *desc;
296
a29c3c09 297 dev->status = &info->control->cur_altsetting->endpoint[0];
4324fd49 298 desc = &dev->status->desc;
8e95a202
JP		 299 if (!usb_endpoint_is_int_in(desc) ||
300 (le16_to_cpu(desc->wMaxPacketSize)
301 < sizeof(struct usb_cdc_notification)) ||
302 !desc->bInterval) {
4324fd49
DB		 303 dev_dbg(&intf->dev, "bad notification endpoint\n");
304 dev->status = NULL;
305 }
306 }
307 if (rndis && !dev->status) {
308 dev_dbg(&intf->dev, "missing RNDIS status endpoint\n");
309 usb_set_intfdata(info->data, NULL);
310 usb_driver_release_interface(driver, info->data);
311 return -ENODEV;
312 }
c472ab68 313
7f65b1f5
ON		 314 return 0;
315
316bad_desc:
317 dev_info(&dev->udev->dev, "bad CDC descriptors\n");
318 return -ENODEV;
319}
320EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind);
321
322
323/* like usbnet_generic_cdc_bind() but handles filter initialization
324 * correctly
325 */
326int usbnet_ether_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
327{
328 int rv;
329
330 rv = usbnet_generic_cdc_bind(dev, intf);
331 if (rv < 0)
332 goto bail_out;
333
c472ab68
ON		 334 /* Some devices don't initialise properly. In particular
335 * the packet filter is not reset. There are devices that
336 * don't do reset all the way. So the packet filter should
337 * be set to a sane initial value.
338 */
d80c679b
OB		 339 usbnet_cdc_update_filter(dev);
340
7f65b1f5
ON		 341bail_out:
342 return rv;
4324fd49 343}
7f65b1f5 344EXPORT_SYMBOL_GPL(usbnet_ether_cdc_bind);
4324fd49
DB		 345
346void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf)
347{
348 struct cdc_state *info = (void *) &dev->data;
349 struct usb_driver *driver = driver_of(intf);
350
1fc4c84d
BM		 351 /* combined interface - nothing to do */
352 if (info->data == info->control)
353 return;
354
4324fd49
DB		 355 /* disconnect master --> disconnect slave */
356 if (intf == info->control && info->data) {
357 /* ensure immediate exit from usbnet_disconnect */
358 usb_set_intfdata(info->data, NULL);
359 usb_driver_release_interface(driver, info->data);
360 info->data = NULL;
361 }
362
363 /* and vice versa (just in case) */
364 else if (intf == info->data && info->control) {
365 /* ensure immediate exit from usbnet_disconnect */
366 usb_set_intfdata(info->control, NULL);
367 usb_driver_release_interface(driver, info->control);
368 info->control = NULL;
369 }
370}
371EXPORT_SYMBOL_GPL(usbnet_cdc_unbind);
372
8857ec28 373/* Communications Device Class, Ethernet Control model
4324fd49
DB		 374 *
375 * Takes two interfaces. The DATA interface is inactive till an altsetting
376 * is selected. Configuration data includes class descriptors. There's
377 * an optional status endpoint on the control interface.
378 *
379 * This should interop with whatever the 2.4 "CDCEther.c" driver
380 * (by Brad Hards) talked with, with more functionality.
8857ec28 381 */
4324fd49
DB		 382
383static void dumpspeed(struct usbnet *dev, __le32 *speeds)
384{
a475f603
JP		 385 netif_info(dev, timer, dev->net,
386 "link speeds: %u kbps up, %u kbps down\n",
387 __le32_to_cpu(speeds[0]) / 1000,
388 __le32_to_cpu(speeds[1]) / 1000);
4324fd49
DB		 389}
390
7a635ea9 391void usbnet_cdc_status(struct usbnet *dev, struct urb *urb)
4324fd49
DB		 392{
393 struct usb_cdc_notification *event;
394
8857ec28 395 if (urb->actual_length < sizeof(*event))
4324fd49
DB		 396 return;
397
398 /* SPEED_CHANGE can get split into two 8-byte packets */
399 if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) {
400 dumpspeed(dev, (__le32 *) urb->transfer_buffer);
401 return;
402 }
403
404 event = urb->transfer_buffer;
405 switch (event->bNotificationType) {
406 case USB_CDC_NOTIFY_NETWORK_CONNECTION:
a475f603
JP		 407 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n",
408 event->wValue ? "on" : "off");
a6bda459 409 usbnet_link_change(dev, !!event->wValue, 0);
4324fd49
DB		 410 break;
411 case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */
a475f603
JP		 412 netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n",
413 urb->actual_length);
8857ec28 414 if (urb->actual_length != (sizeof(*event) + 8))
4324fd49
DB		 415 set_bit(EVENT_STS_SPLIT, &dev->flags);
416 else
417 dumpspeed(dev, (__le32 *) &event[1]);
418 break;
419 /* USB_CDC_NOTIFY_RESPONSE_AVAILABLE can happen too (e.g. RNDIS),
420 * but there are no standard formats for the response data.
421 */
422 default:
60b86755
JP		 423 netdev_err(dev->net, "CDC: unexpected notification %02x!\n",
424 event->bNotificationType);
4324fd49
DB		 425 break;
426 }
427}
7a635ea9 428EXPORT_SYMBOL_GPL(usbnet_cdc_status);
4324fd49 429
7a635ea9 430int usbnet_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
4324fd49
DB		 431{
432 int status;
433 struct cdc_state *info = (void *) &dev->data;
434
d632eb1b
GKH		 435 BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data)
436 < sizeof(struct cdc_state)));
437
7f65b1f5 438 status = usbnet_ether_cdc_bind(dev, intf);
4324fd49
DB		 439 if (status < 0)
440 return status;
441
03ad032b 442 status = usbnet_get_ethernet_addr(dev, info->ether->iMACAddress);
4324fd49
DB		 443 if (status < 0) {
444 usb_set_intfdata(info->data, NULL);
445 usb_driver_release_interface(driver_of(intf), info->data);
446 return status;
447 }
448
4324fd49
DB		 449 return 0;
450}
7a635ea9 451EXPORT_SYMBOL_GPL(usbnet_cdc_bind);
4324fd49 452
bfe9b9d2
KE		 453static int usbnet_cdc_zte_bind(struct usbnet *dev, struct usb_interface *intf)
454{
455 int status = usbnet_cdc_bind(dev, intf);
456
457 if (!status && (dev->net->dev_addr[0] & 0x02))
458 eth_hw_addr_random(dev->net);
459
460 return status;
461}
462
463/* Make sure packets have correct destination MAC address
464 *
465 * A firmware bug observed on some devices (ZTE MF823/831/910) is that the
466 * device sends packets with a static, bogus, random MAC address (event if
467 * device MAC address has been updated). Always set MAC address to that of the
468 * device.
469 */
470static int usbnet_cdc_zte_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
471{
472 if (skb->len < ETH_HLEN || !(skb->data[0] & 0x02))
473 return 1;
474
475 skb_reset_mac_header(skb);
476 ether_addr_copy(eth_hdr(skb)->h_dest, dev->net->dev_addr);
477
478 return 1;
479}
480
d5c83d0d
KE		 481/* Ensure correct link state
482 *
483 * Some devices (ZTE MF823/831/910) export two carrier on notifications when
484 * connected. This causes the link state to be incorrect. Work around this by
485 * always setting the state to off, then on.
486 */
37c9782c 487static void usbnet_cdc_zte_status(struct usbnet *dev, struct urb *urb)
d5c83d0d
KE		 488{
489 struct usb_cdc_notification *event;
490
491 if (urb->actual_length < sizeof(*event))
492 return;
493
494 event = urb->transfer_buffer;
495
496 if (event->bNotificationType != USB_CDC_NOTIFY_NETWORK_CONNECTION) {
497 usbnet_cdc_status(dev, urb);
498 return;
499 }
500
501 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n",
502 event->wValue ? "on" : "off");
503
504 if (event->wValue &&
505 netif_carrier_ok(dev->net))
506 netif_carrier_off(dev->net);
507
508 usbnet_link_change(dev, !!event->wValue, 0);
509}
510
4324fd49
DB		 511static const struct driver_info cdc_info = {
512 .description = "CDC Ethernet Device",
c261344d 513 .flags = FLAG_ETHER | FLAG_POINTTOPOINT,
7a635ea9 514 .bind = usbnet_cdc_bind,
4324fd49 515 .unbind = usbnet_cdc_unbind,
7a635ea9 516 .status = usbnet_cdc_status,
b77e26d1 517 .set_rx_mode = usbnet_cdc_update_filter,
a5e40708 518 .manage_power = usbnet_manage_power,
4324fd49
DB		 519};
520
bfe9b9d2
KE		 521static const struct driver_info zte_cdc_info = {
522 .description = "ZTE CDC Ethernet Device",
523 .flags = FLAG_ETHER | FLAG_POINTTOPOINT,
524 .bind = usbnet_cdc_zte_bind,
525 .unbind = usbnet_cdc_unbind,
d5c83d0d 526 .status = usbnet_cdc_zte_status,
bfe9b9d2
KE		 527 .set_rx_mode = usbnet_cdc_update_filter,
528 .manage_power = usbnet_manage_power,
529 .rx_fixup = usbnet_cdc_zte_rx_fixup,
530};
531
b3c914aa 532static const struct driver_info wwan_info = {
e1e499ee
MH		 533 .description = "Mobile Broadband Network Device",
534 .flags = FLAG_WWAN,
7a635ea9 535 .bind = usbnet_cdc_bind,
e1e499ee 536 .unbind = usbnet_cdc_unbind,
7a635ea9 537 .status = usbnet_cdc_status,
b77e26d1 538 .set_rx_mode = usbnet_cdc_update_filter,
a5e40708 539 .manage_power = usbnet_manage_power,
e1e499ee
MH		 540};
541
4324fd49
DB		 542/*-------------------------------------------------------------------------*/
543
b3c914aa 544#define HUAWEI_VENDOR_ID 0x12D1
4e6304b8 545#define NOVATEL_VENDOR_ID 0x1410
68d8318b 546#define ZTE_VENDOR_ID 0x19D2
0370acd4 547#define DELL_VENDOR_ID 0x413C
ac718b69 548#define REALTEK_VENDOR_ID 0x0bda
43779f8d 549#define SAMSUNG_VENDOR_ID 0x04e8
347eec34 550#define LENOVO_VENDOR_ID 0x17ef
90841047 551#define LINKSYS_VENDOR_ID 0x13b1
d065c3c1 552#define NVIDIA_VENDOR_ID 0x0955
5b9f5751 553#define HP_VENDOR_ID 0x03f0
d5b07ccc 554#define MICROSOFT_VENDOR_ID 0x045e
fdfbad32 555#define UBLOX_VENDOR_ID 0x1546
9d11b066 556#define TPLINK_VENDOR_ID 0x2357
d596df3a
DB		 557#define AQUANTIA_VENDOR_ID 0x2eca
558#define ASIX_VENDOR_ID 0x0b95
4324fd49 559
8857ec28
FP		 560static const struct usb_device_id products[] = {
561/* BLACKLIST !!
4324fd49
DB		 562 *
563 * First blacklist any products that are egregiously nonconformant
564 * with the CDC Ethernet specs. Minor braindamage we cope with; when
565 * they're not even trying, needing a separate driver is only the first
566 * of the differences to show up.
567 */
568
569#define ZAURUS_MASTER_INTERFACE \
570 .bInterfaceClass = USB_CLASS_COMM, \
571 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \
572 .bInterfaceProtocol = USB_CDC_PROTO_NONE
573
574/* SA-1100 based Sharp Zaurus ("collie"), or compatible;
575 * wire-incompatible with true CDC Ethernet implementations.
576 * (And, it seems, needlessly so...)
577 */
578{
579 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
580 | USB_DEVICE_ID_MATCH_DEVICE,
581 .idVendor = 0x04DD,
582 .idProduct = 0x8004,
583 ZAURUS_MASTER_INTERFACE,
584 .driver_info = 0,
585},
586
587/* PXA-25x based Sharp Zaurii. Note that it seems some of these
588 * (later models especially) may have shipped only with firmware
589 * advertising false "CDC MDLM" compatibility ... but we're not
590 * clear which models did that, so for now let's assume the worst.
591 */
592{
593 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
594 | USB_DEVICE_ID_MATCH_DEVICE,
595 .idVendor = 0x04DD,
596 .idProduct = 0x8005, /* A-300 */
597 ZAURUS_MASTER_INTERFACE,
598 .driver_info = 0,
599}, {
600 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
601 | USB_DEVICE_ID_MATCH_DEVICE,
602 .idVendor = 0x04DD,
603 .idProduct = 0x8006, /* B-500/SL-5600 */
604 ZAURUS_MASTER_INTERFACE,
605 .driver_info = 0,
606}, {
607 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
8857ec28 608 | USB_DEVICE_ID_MATCH_DEVICE,
4324fd49
DB		 609 .idVendor = 0x04DD,
610 .idProduct = 0x8007, /* C-700 */
611 ZAURUS_MASTER_INTERFACE,
612 .driver_info = 0,
613}, {
614 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
615 | USB_DEVICE_ID_MATCH_DEVICE,
616 .idVendor = 0x04DD,
617 .idProduct = 0x9031, /* C-750 C-760 */
618 ZAURUS_MASTER_INTERFACE,
619 .driver_info = 0,
620}, {
621 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
622 | USB_DEVICE_ID_MATCH_DEVICE,
623 .idVendor = 0x04DD,
624 .idProduct = 0x9032, /* SL-6000 */
625 ZAURUS_MASTER_INTERFACE,
626 .driver_info = 0,
627}, {
628 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
629 | USB_DEVICE_ID_MATCH_DEVICE,
630 .idVendor = 0x04DD,
631 /* reported with some C860 units */
632 .idProduct = 0x9050, /* C-860 */
633 ZAURUS_MASTER_INTERFACE,
634 .driver_info = 0,
635},
636
efcaa205
DB		 637/* Olympus has some models with a Zaurus-compatible option.
638 * R-1000 uses a FreeScale i.MXL cpu (ARMv4T)
639 */
640{
641 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
642 | USB_DEVICE_ID_MATCH_DEVICE,
643 .idVendor = 0x07B4,
644 .idProduct = 0x0F02, /* R-1000 */
645 ZAURUS_MASTER_INTERFACE,
646 .driver_info = 0,
647},
648
7a635ea9
AZ		 649/* LG Electronics VL600 wants additional headers on every frame */
650{
651 USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM,
652 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
6d74eb94 653 .driver_info = 0,
7a635ea9
AZ		 654},
655
ee932bf9
ST		 656/* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */
657{
658 USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM,
659 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
660 .driver_info = 0,
661},
662
f8295ec2
DW		 663/* Novatel USB551L and MC551 - handled by qmi_wwan */
664{
c39ba1c2
DW		 665 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0xB001, USB_CLASS_COMM,
666 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
f8295ec2
DW		 667 .driver_info = 0,
668},
669
670/* Novatel E362 - handled by qmi_wwan */
671{
c39ba1c2
DW		 672 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9010, USB_CLASS_COMM,
673 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
f8295ec2
DW		 674 .driver_info = 0,
675},
676
0370acd4
DW		 677/* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */
678{
679 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8195, USB_CLASS_COMM,
680 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
681 .driver_info = 0,
682},
683
684/* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */
685{
686 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8196, USB_CLASS_COMM,
687 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
688 .driver_info = 0,
689},
690
7fdb7846
DW		 691/* Dell Wireless 5804 (Novatel E371) - handled by qmi_wwan */
692{
693 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x819b, USB_CLASS_COMM,
694 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
695 .driver_info = 0,
696},
697
7b5939ba
YY		 698/* Novatel Expedite E371 - handled by qmi_wwan */
699{
700 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9011, USB_CLASS_COMM,
701 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
702 .driver_info = 0,
703},
704
5b9f5751
BM		 705/* HP lt2523 (Novatel E371) - handled by qmi_wwan */
706{
707 USB_DEVICE_AND_INTERFACE_INFO(HP_VENDOR_ID, 0x421d, USB_CLASS_COMM,
708 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
709 .driver_info = 0,
710},
711
45d213f5
DW		 712/* AnyDATA ADU960S - handled by qmi_wwan */
713{
714 USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, USB_CLASS_COMM,
715 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
716 .driver_info = 0,
717},
718
c2020be3
BM		 719/* Huawei E1820 - handled by qmi_wwan */
720{
721 USB_DEVICE_INTERFACE_NUMBER(HUAWEI_VENDOR_ID, 0x14ac, 1),
722 .driver_info = 0,
723},
724
ac718b69 725/* Realtek RTL8152 Based USB 2.0 Ethernet Adapters */
ac718b69 726{
727 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8152, USB_CLASS_COMM,
728 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
729 .driver_info = 0,
730},
c073f666 731
732/* Realtek RTL8153 Based USB 3.0 Ethernet Adapters */
733{
734 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8153, USB_CLASS_COMM,
735 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
736 .driver_info = 0,
737},
ac718b69 738
10c32717 739/* Samsung USB Ethernet Adapters */
740{
741 USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, 0xa101, USB_CLASS_COMM,
742 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
743 .driver_info = 0,
744},
745
90841047
GG		 746#if IS_ENABLED(CONFIG_USB_RTL8152)
747/* Linksys USB3GIGV1 Ethernet Adapter */
748{
749 USB_DEVICE_AND_INTERFACE_INFO(LINKSYS_VENDOR_ID, 0x0041, USB_CLASS_COMM,
750 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
751 .driver_info = 0,
752},
753#endif
754
d248cafc 755/* ThinkPad USB-C Dock (based on Realtek RTL8153) */
756{
757 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3062, USB_CLASS_COMM,
758 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
759 .driver_info = 0,
760},
761
762/* ThinkPad Thunderbolt 3 Dock (based on Realtek RTL8153) */
763{
764 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3069, USB_CLASS_COMM,
765 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
766 .driver_info = 0,
767},
768
9647722b
KHF		 769/* ThinkPad Thunderbolt 3 Dock Gen 2 (based on Realtek RTL8153) */
770{
771 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3082, USB_CLASS_COMM,
772 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
773 .driver_info = 0,
774},
775
347eec34
CH		 776/* Lenovo Thinkpad USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */
777{
778 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7205, USB_CLASS_COMM,
779 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
780 .driver_info = 0,
781},
782
d248cafc 783/* Lenovo USB C to Ethernet Adapter (based on Realtek RTL8153) */
784{
785 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x720c, USB_CLASS_COMM,
786 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
787 .driver_info = 0,
788},
789
790/* Lenovo USB-C Travel Hub (based on Realtek RTL8153) */
791{
792 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7214, USB_CLASS_COMM,
793 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
b3060531
KN		 794 .driver_info = 0,
795},
796
797/* ThinkPad USB-C Dock Gen 2 (based on Realtek RTL8153) */
798{
799 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0xa387, USB_CLASS_COMM,
800 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
d248cafc 801 .driver_info = 0,
802},
803
d065c3c1
ZL		 804/* NVIDIA Tegra USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */
805{
806 USB_DEVICE_AND_INTERFACE_INFO(NVIDIA_VENDOR_ID, 0x09ff, USB_CLASS_COMM,
d5b07ccc
RR		 807 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
808 .driver_info = 0,
809},
810
811/* Microsoft Surface 2 dock (based on Realtek RTL8152) */
812{
813 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07ab, USB_CLASS_COMM,
814 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
815 .driver_info = 0,
816},
817
c27a2043 818/* Microsoft Surface Ethernet Adapter (based on Realtek RTL8153) */
d5b07ccc
RR		 819{
820 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07c6, USB_CLASS_COMM,
d065c3c1
ZL		 821 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
822 .driver_info = 0,
823},
824
c27a2043
MP		 825/* Microsoft Surface Ethernet Adapter (based on Realtek RTL8153B) */
826{
827 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x0927, USB_CLASS_COMM,
828 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
829 .driver_info = 0,
830},
831
832/* TP-LINK UE300 USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */
9d11b066
RW		 833{
834 USB_DEVICE_AND_INTERFACE_INFO(TPLINK_VENDOR_ID, 0x0601, USB_CLASS_COMM,
835 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
d596df3a
DB		 836 .driver_info = 0,
837},
838
839/* Aquantia AQtion USB to 5GbE Controller (based on AQC111U) */
840{
841 USB_DEVICE_AND_INTERFACE_INFO(AQUANTIA_VENDOR_ID, 0xc101,
842 USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
843 USB_CDC_PROTO_NONE),
844 .driver_info = 0,
845},
846
847/* ASIX USB 3.1 Gen1 to 5G Multi-Gigabit Ethernet Adapter(based on AQC111U) */
848{
849 USB_DEVICE_AND_INTERFACE_INFO(ASIX_VENDOR_ID, 0x2790, USB_CLASS_COMM,
850 USB_CDC_SUBCLASS_ETHERNET,
851 USB_CDC_PROTO_NONE),
852 .driver_info = 0,
853},
854
855/* ASIX USB 3.1 Gen1 to 2.5G Multi-Gigabit Ethernet Adapter(based on AQC112U) */
856{
857 USB_DEVICE_AND_INTERFACE_INFO(ASIX_VENDOR_ID, 0x2791, USB_CLASS_COMM,
858 USB_CDC_SUBCLASS_ETHERNET,
859 USB_CDC_PROTO_NONE),
9098f21f
DB		 860 .driver_info = 0,
861},
862
863/* USB-C 3.1 to 5GBASE-T Ethernet Adapter (based on AQC111U) */
864{
865 USB_DEVICE_AND_INTERFACE_INFO(0x20f4, 0xe05a, USB_CLASS_COMM,
866 USB_CDC_SUBCLASS_ETHERNET,
867 USB_CDC_PROTO_NONE),
b7ebee2f
DB		 868 .driver_info = 0,
869},
870
871/* QNAP QNA-UC5G1T USB to 5GbE Adapter (based on AQC111U) */
872{
873 USB_DEVICE_AND_INTERFACE_INFO(0x1c04, 0x0015, USB_CLASS_COMM,
874 USB_CDC_SUBCLASS_ETHERNET,
875 USB_CDC_PROTO_NONE),
9d11b066
RW		 876 .driver_info = 0,
877},
878
8857ec28 879/* WHITELIST!!!
4324fd49
DB		 880 *
881 * CDC Ether uses two interfaces, not necessarily consecutive.
882 * We match the main interface, ignoring the optional device
883 * class so we could handle devices that aren't exclusively
884 * CDC ether.
885 *
886 * NOTE: this match must come AFTER entries blacklisting devices
887 * because of bugs/quirks in a given product (like Zaurus, above).
888 */
889{
68d8318b 890 /* ZTE (Vodafone) K3805-Z */
d82a7f54
FP		 891 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1003, USB_CLASS_COMM,
892 USB_CDC_SUBCLASS_ETHERNET,
893 USB_CDC_PROTO_NONE),
68d8318b
ABSS		 894 .driver_info = (unsigned long)&wwan_info,
895}, {
896 /* ZTE (Vodafone) K3806-Z */
d82a7f54
FP		 897 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1015, USB_CLASS_COMM,
898 USB_CDC_SUBCLASS_ETHERNET,
899 USB_CDC_PROTO_NONE),
68d8318b
ABSS		 900 .driver_info = (unsigned long)&wwan_info,
901}, {
902 /* ZTE (Vodafone) K4510-Z */
d82a7f54
FP		 903 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1173, USB_CLASS_COMM,
904 USB_CDC_SUBCLASS_ETHERNET,
905 USB_CDC_PROTO_NONE),
68d8318b
ABSS		 906 .driver_info = (unsigned long)&wwan_info,
907}, {
908 /* ZTE (Vodafone) K3770-Z */
d82a7f54
FP		 909 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1177, USB_CLASS_COMM,
910 USB_CDC_SUBCLASS_ETHERNET,
911 USB_CDC_PROTO_NONE),
68d8318b
ABSS		 912 .driver_info = (unsigned long)&wwan_info,
913}, {
914 /* ZTE (Vodafone) K3772-Z */
d82a7f54
FP		 915 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1181, USB_CLASS_COMM,
916 USB_CDC_SUBCLASS_ETHERNET,
917 USB_CDC_PROTO_NONE),
68d8318b 918 .driver_info = (unsigned long)&wwan_info,
00928204
FP		 919}, {
920 /* Telit modules */
921 USB_VENDOR_AND_INTERFACE_INFO(0x1bc7, USB_CLASS_COMM,
922 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
923 .driver_info = (kernel_ulong_t) &wwan_info,
0b88393c
DP		 924}, {
925 /* Dell DW5580 modules */
926 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x81ba, USB_CLASS_COMM,
927 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
928 .driver_info = (kernel_ulong_t)&wwan_info,
07f37efd
AM		 929}, {
930 /* Huawei ME906 and ME909 */
931 USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0x15c1, USB_CLASS_COMM,
932 USB_CDC_SUBCLASS_ETHERNET,
933 USB_CDC_PROTO_NONE),
934 .driver_info = (unsigned long)&wwan_info,
bfe9b9d2
KE		 935}, {
936 /* ZTE modules */
937 USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, USB_CLASS_COMM,
938 USB_CDC_SUBCLASS_ETHERNET,
939 USB_CDC_PROTO_NONE),
940 .driver_info = (unsigned long)&zte_cdc_info,
fdfbad32
AM		 941}, {
942 /* U-blox TOBY-L2 */
943 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1143, USB_CLASS_COMM,
944 USB_CDC_SUBCLASS_ETHERNET,
945 USB_CDC_PROTO_NONE),
946 .driver_info = (unsigned long)&wwan_info,
947}, {
948 /* U-blox SARA-U2 */
949 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1104, USB_CLASS_COMM,
950 USB_CDC_SUBCLASS_ETHERNET,
951 USB_CDC_PROTO_NONE),
8ca88b54
BB		 952 .driver_info = (unsigned long)&wwan_info,
953}, {
954 /* Cinterion PLS8 modem by GEMALTO */
955 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0061, USB_CLASS_COMM,
956 USB_CDC_SUBCLASS_ETHERNET,
957 USB_CDC_PROTO_NONE),
53765341
BB		 958 .driver_info = (unsigned long)&wwan_info,
959}, {
960 /* Cinterion AHS3 modem by GEMALTO */
961 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0055, USB_CLASS_COMM,
962 USB_CDC_SUBCLASS_ETHERNET,
963 USB_CDC_PROTO_NONE),
fdfbad32 964 .driver_info = (unsigned long)&wwan_info,
4e6304b8 965}, {
4324fd49
DB		 966 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
967 USB_CDC_PROTO_NONE),
968 .driver_info = (unsigned long) &cdc_info,
cac477e8 969}, {
21851264
JS		 970 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM,
971 USB_CDC_PROTO_NONE),
b3c914aa 972 .driver_info = (unsigned long)&wwan_info,
21851264 973
b3c914aa
DW		 974}, {
975 /* Various Huawei modems with a network port like the UMG1831 */
d82a7f54
FP		 976 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_COMM,
977 USB_CDC_SUBCLASS_ETHERNET, 255),
b3c914aa 978 .driver_info = (unsigned long)&wwan_info,
4324fd49 979},
8857ec28 980 { }, /* END */
4324fd49
DB		 981};
982MODULE_DEVICE_TABLE(usb, products);
983
984static struct usb_driver cdc_driver = {
4324fd49
DB		 985 .name = "cdc_ether",
986 .id_table = products,
987 .probe = usbnet_probe,
988 .disconnect = usbnet_disconnect,
989 .suspend = usbnet_suspend,
990 .resume = usbnet_resume,
7f515790 991 .reset_resume = usbnet_resume,
69ee472f 992 .supports_autosuspend = 1,
e1f12eb6 993 .disable_hub_initiated_lpm = 1,
4324fd49
DB		 994};
995
d632eb1b 996module_usb_driver(cdc_driver);
4324fd49
DB		 997
998MODULE_AUTHOR("David Brownell");
999MODULE_DESCRIPTION("USB CDC Ethernet devices");
1000MODULE_LICENSE("GPL");
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