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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
24static 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
31static 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
38static 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
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
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
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
66void 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}
93EXPORT_SYMBOL_GPL(usbnet_cdc_update_filter);
94
95/* We need to override usbnet_*_link_ksettings in bind() */
96static const struct ethtool_ops cdc_ether_ethtool_ops = {
97 .get_link = usbnet_get_link,
98 .nway_reset = usbnet_nway_reset,
99 .get_drvinfo = usbnet_get_drvinfo,
100 .get_msglevel = usbnet_get_msglevel,
101 .set_msglevel = usbnet_set_msglevel,
102 .get_ts_info = ethtool_op_get_ts_info,
103 .get_link_ksettings = usbnet_get_link_ksettings_internal,
104 .set_link_ksettings = NULL,
105};
106
107/* probes control interface, claims data interface, collects the bulk
108 * endpoints, activates data interface (if needed), maybe sets MTU.
109 * all pure cdc, except for certain firmware workarounds, and knowing
110 * that rndis uses one different rule.
111 */
112int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
113{
114 u8 *buf = intf->cur_altsetting->extra;
115 int len = intf->cur_altsetting->extralen;
116 struct usb_interface_descriptor *d;
117 struct cdc_state *info = (void *) &dev->data;
118 int status = -ENODEV;
119 int rndis;
120 bool android_rndis_quirk = false;
121 struct usb_driver *driver = driver_of(intf);
122 struct usb_cdc_parsed_header header;
123
124 if (sizeof(dev->data) < sizeof(*info))
125 return -EDOM;
126
127 /* expect strict spec conformance for the descriptors, but
128 * cope with firmware which stores them in the wrong place
129 */
130 if (len == 0 && dev->udev->actconfig->extralen) {
131 /* Motorola SB4100 (and others: Brad Hards says it's
132 * from a Broadcom design) put CDC descriptors here
133 */
134 buf = dev->udev->actconfig->extra;
135 len = dev->udev->actconfig->extralen;
136 dev_dbg(&intf->dev, "CDC descriptors on config\n");
137 }
138
139 /* Maybe CDC descriptors are after the endpoint? This bug has
140 * been seen on some 2Wire Inc RNDIS-ish products.
141 */
142 if (len == 0) {
143 struct usb_host_endpoint *hep;
144
145 hep = intf->cur_altsetting->endpoint;
146 if (hep) {
147 buf = hep->extra;
148 len = hep->extralen;
149 }
150 if (len)
151 dev_dbg(&intf->dev,
152 "CDC descriptors on endpoint\n");
153 }
154
155 /* this assumes that if there's a non-RNDIS vendor variant
156 * of cdc-acm, it'll fail RNDIS requests cleanly.
157 */
158 rndis = (is_rndis(&intf->cur_altsetting->desc) ||
159 is_activesync(&intf->cur_altsetting->desc) ||
160 is_wireless_rndis(&intf->cur_altsetting->desc) ||
161 is_novatel_rndis(&intf->cur_altsetting->desc));
162
163 memset(info, 0, sizeof(*info));
164 info->control = intf;
165
166 cdc_parse_cdc_header(&header, intf, buf, len);
167
168 info->u = header.usb_cdc_union_desc;
169 info->header = header.usb_cdc_header_desc;
170 info->ether = header.usb_cdc_ether_desc;
171 if (!info->u) {
172 if (rndis) {
173 goto skip;
174 } else {
175 /* in that case a quirk is mandatory */
176 dev_err(&dev->udev->dev, "No union descriptors\n");
177 goto bad_desc;
178 }
179 }
180 /* we need a master/control interface (what we're
181 * probed with) and a slave/data interface; union
182 * descriptors sort this all out.
183 */
184 info->control = usb_ifnum_to_if(dev->udev, info->u->bMasterInterface0);
185 info->data = usb_ifnum_to_if(dev->udev, info->u->bSlaveInterface0);
186 if (!info->control || !info->data) {
187 dev_dbg(&intf->dev,
188 "master #%u/%p slave #%u/%p\n",
189 info->u->bMasterInterface0,
190 info->control,
191 info->u->bSlaveInterface0,
192 info->data);
193 /* fall back to hard-wiring for RNDIS */
194 if (rndis) {
195 android_rndis_quirk = true;
196 goto skip;
197 }
198 dev_err(&intf->dev, "bad CDC descriptors\n");
199 goto bad_desc;
200 }
201 if (info->control != intf) {
202 /* Ambit USB Cable Modem (and maybe others)
203 * interchanges master and slave interface.
204 */
205 if (info->data == intf) {
206 info->data = info->control;
207 info->control = intf;
208 } else {
209 dev_err(&intf->dev, "bogus CDC Union\n");
210 goto bad_desc;
211 }
212 }
213
214 /* some devices merge these - skip class check */
215 if (info->control == info->data)
216 goto skip;
217
218 /* a data interface altsetting does the real i/o */
219 d = &info->data->cur_altsetting->desc;
220 if (d->bInterfaceClass != USB_CLASS_CDC_DATA) {
221 dev_err(&intf->dev, "slave class %u\n", d->bInterfaceClass);
222 goto bad_desc;
223 }
224skip:
225 /* Communication class functions with bmCapabilities are not
226 * RNDIS. But some Wireless class RNDIS functions use
227 * bmCapabilities for their own purpose. The failsafe is
228 * therefore applied only to Communication class RNDIS
229 * functions. The rndis test is redundant, but a cheap
230 * optimization.
231 */
232 if (rndis && is_rndis(&intf->cur_altsetting->desc) &&
233 header.usb_cdc_acm_descriptor &&
234 header.usb_cdc_acm_descriptor->bmCapabilities) {
235 dev_err(&intf->dev,
236 "ACM capabilities %02x, not really RNDIS?\n",
237 header.usb_cdc_acm_descriptor->bmCapabilities);
238 goto bad_desc;
239 }
240
241 if (header.usb_cdc_ether_desc && info->ether->wMaxSegmentSize) {
242 dev->hard_mtu = le16_to_cpu(info->ether->wMaxSegmentSize);
243 /* because of Zaurus, we may be ignoring the host
244 * side link address we were given.
245 */
246 }
247
248 if (header.usb_cdc_mdlm_desc &&
249 memcmp(header.usb_cdc_mdlm_desc->bGUID, mbm_guid, 16)) {
250 dev_err(&intf->dev, "GUID doesn't match\n");
251 goto bad_desc;
252 }
253
254 if (header.usb_cdc_mdlm_detail_desc &&
255 header.usb_cdc_mdlm_detail_desc->bLength <
256 (sizeof(struct usb_cdc_mdlm_detail_desc) + 1)) {
257 dev_err(&intf->dev, "Descriptor too short\n");
258 goto bad_desc;
259 }
260
261
262
263 /* Microsoft ActiveSync based and some regular RNDIS devices lack the
264 * CDC descriptors, so we'll hard-wire the interfaces and not check
265 * for descriptors.
266 *
267 * Some Android RNDIS devices have a CDC Union descriptor pointing
268 * to non-existing interfaces. Ignore that and attempt the same
269 * hard-wired 0 and 1 interfaces.
270 */
271 if (rndis && (!info->u || android_rndis_quirk)) {
272 info->control = usb_ifnum_to_if(dev->udev, 0);
273 info->data = usb_ifnum_to_if(dev->udev, 1);
274 if (!info->control || !info->data || info->control != intf) {
275 dev_err(&intf->dev,
276 "rndis: master #0/%p slave #1/%p\n",
277 info->control,
278 info->data);
279 goto bad_desc;
280 }
281
282 } else if (!info->header || (!rndis && !info->ether)) {
283 dev_err(&intf->dev, "missing cdc %s%s%sdescriptor\n",
284 info->header ? "" : "header ",
285 info->u ? "" : "union ",
286 info->ether ? "" : "ether ");
287 goto bad_desc;
288 }
289
290 /* claim data interface and set it up ... with side effects.
291 * network traffic can't flow until an altsetting is enabled.
292 */
293 if (info->data != info->control) {
294 status = usb_driver_claim_interface(driver, info->data, dev);
295 if (status < 0) {
296 dev_err(&intf->dev, "Second interface unclaimable\n");
297 goto bad_desc;
298 }
299 }
300 status = usbnet_get_endpoints(dev, info->data);
301 if (status < 0) {
302 dev_dbg(&intf->dev, "Mandatory endpoints missing\n");
303 goto bail_out_and_release;
304 }
305
306 /* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */
307 if (info->data != info->control)
308 dev->status = NULL;
309 if (info->control->cur_altsetting->desc.bNumEndpoints == 1) {
310 struct usb_endpoint_descriptor *desc;
311
312 dev->status = &info->control->cur_altsetting->endpoint[0];
313 desc = &dev->status->desc;
314 if (!usb_endpoint_is_int_in(desc) ||
315 (le16_to_cpu(desc->wMaxPacketSize)
316 < sizeof(struct usb_cdc_notification)) ||
317 !desc->bInterval) {
318 dev_dbg(&intf->dev, "bad notification endpoint\n");
319 dev->status = NULL;
320 }
321 }
322 if (rndis && !dev->status) {
323 dev_err(&intf->dev, "missing RNDIS status endpoint\n");
324 status = -ENODEV;
325 goto bail_out_and_release;
326 }
327
328 /* override ethtool_ops */
329 dev->net->ethtool_ops = &cdc_ether_ethtool_ops;
330
331 return 0;
332
333bail_out_and_release:
334 usb_set_intfdata(info->data, NULL);
335 if (info->data != info->control)
336 usb_driver_release_interface(driver, info->data);
337bad_desc:
338 return status;
339}
340EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind);
341
342
343/* like usbnet_generic_cdc_bind() but handles filter initialization
344 * correctly
345 */
346int usbnet_ether_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
347{
348 int rv;
349
350 rv = usbnet_generic_cdc_bind(dev, intf);
351 if (rv < 0)
352 goto bail_out;
353
354 /* Some devices don't initialise properly. In particular
355 * the packet filter is not reset. There are devices that
356 * don't do reset all the way. So the packet filter should
357 * be set to a sane initial value.
358 */
359 usbnet_cdc_update_filter(dev);
360
361bail_out:
362 return rv;
363}
364EXPORT_SYMBOL_GPL(usbnet_ether_cdc_bind);
365
366void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf)
367{
368 struct cdc_state *info = (void *) &dev->data;
369 struct usb_driver *driver = driver_of(intf);
370
371 /* combined interface - nothing to do */
372 if (info->data == info->control)
373 return;
374
375 /* disconnect master --> disconnect slave */
376 if (intf == info->control && info->data) {
377 /* ensure immediate exit from usbnet_disconnect */
378 usb_set_intfdata(info->data, NULL);
379 usb_driver_release_interface(driver, info->data);
380 info->data = NULL;
381 }
382
383 /* and vice versa (just in case) */
384 else if (intf == info->data && info->control) {
385 /* ensure immediate exit from usbnet_disconnect */
386 usb_set_intfdata(info->control, NULL);
387 usb_driver_release_interface(driver, info->control);
388 info->control = NULL;
389 }
390}
391EXPORT_SYMBOL_GPL(usbnet_cdc_unbind);
392
393/* Communications Device Class, Ethernet Control model
394 *
395 * Takes two interfaces. The DATA interface is inactive till an altsetting
396 * is selected. Configuration data includes class descriptors. There's
397 * an optional status endpoint on the control interface.
398 *
399 * This should interop with whatever the 2.4 "CDCEther.c" driver
400 * (by Brad Hards) talked with, with more functionality.
401 */
402
403static void speed_change(struct usbnet *dev, __le32 *speeds)
404{
405 dev->tx_speed = __le32_to_cpu(speeds[0]);
406 dev->rx_speed = __le32_to_cpu(speeds[1]);
407}
408
409void usbnet_cdc_status(struct usbnet *dev, struct urb *urb)
410{
411 struct usb_cdc_notification *event;
412
413 if (urb->actual_length < sizeof(*event))
414 return;
415
416 /* SPEED_CHANGE can get split into two 8-byte packets */
417 if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) {
418 speed_change(dev, (__le32 *) urb->transfer_buffer);
419 return;
420 }
421
422 event = urb->transfer_buffer;
423 switch (event->bNotificationType) {
424 case USB_CDC_NOTIFY_NETWORK_CONNECTION:
425 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n",
426 event->wValue ? "on" : "off");
427 if (netif_carrier_ok(dev->net) != !!event->wValue)
428 usbnet_link_change(dev, !!event->wValue, 0);
429 break;
430 case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */
431 netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n",
432 urb->actual_length);
433 if (urb->actual_length != (sizeof(*event) + 8))
434 set_bit(EVENT_STS_SPLIT, &dev->flags);
435 else
436 speed_change(dev, (__le32 *) &event[1]);
437 break;
438 /* USB_CDC_NOTIFY_RESPONSE_AVAILABLE can happen too (e.g. RNDIS),
439 * but there are no standard formats for the response data.
440 */
441 default:
442 netdev_err(dev->net, "CDC: unexpected notification %02x!\n",
443 event->bNotificationType);
444 break;
445 }
446}
447EXPORT_SYMBOL_GPL(usbnet_cdc_status);
448
449int usbnet_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
450{
451 int status;
452 struct cdc_state *info = (void *) &dev->data;
453
454 BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data)
455 < sizeof(struct cdc_state)));
456
457 status = usbnet_ether_cdc_bind(dev, intf);
458 if (status < 0)
459 return status;
460
461 status = usbnet_get_ethernet_addr(dev, info->ether->iMACAddress);
462 if (status < 0) {
463 usb_set_intfdata(info->data, NULL);
464 usb_driver_release_interface(driver_of(intf), info->data);
465 return status;
466 }
467
468 return 0;
469}
470EXPORT_SYMBOL_GPL(usbnet_cdc_bind);
471
472static int usbnet_cdc_zte_bind(struct usbnet *dev, struct usb_interface *intf)
473{
474 int status = usbnet_cdc_bind(dev, intf);
475
476 if (!status && (dev->net->dev_addr[0] & 0x02))
477 eth_hw_addr_random(dev->net);
478
479 return status;
480}
481
482/* Make sure packets have correct destination MAC address
483 *
484 * A firmware bug observed on some devices (ZTE MF823/831/910) is that the
485 * device sends packets with a static, bogus, random MAC address (event if
486 * device MAC address has been updated). Always set MAC address to that of the
487 * device.
488 */
489int usbnet_cdc_zte_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
490{
491 if (skb->len < ETH_HLEN || !(skb->data[0] & 0x02))
492 return 1;
493
494 skb_reset_mac_header(skb);
495 ether_addr_copy(eth_hdr(skb)->h_dest, dev->net->dev_addr);
496
497 return 1;
498}
499EXPORT_SYMBOL_GPL(usbnet_cdc_zte_rx_fixup);
500
501/* Ensure correct link state
502 *
503 * Some devices (ZTE MF823/831/910) export two carrier on notifications when
504 * connected. This causes the link state to be incorrect. Work around this by
505 * always setting the state to off, then on.
506 */
507static void usbnet_cdc_zte_status(struct usbnet *dev, struct urb *urb)
508{
509 struct usb_cdc_notification *event;
510
511 if (urb->actual_length < sizeof(*event))
512 return;
513
514 event = urb->transfer_buffer;
515
516 if (event->bNotificationType != USB_CDC_NOTIFY_NETWORK_CONNECTION) {
517 usbnet_cdc_status(dev, urb);
518 return;
519 }
520
521 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n",
522 event->wValue ? "on" : "off");
523
524 if (event->wValue &&
525 netif_carrier_ok(dev->net))
526 netif_carrier_off(dev->net);
527
528 usbnet_link_change(dev, !!event->wValue, 0);
529}
530
531static const struct driver_info cdc_info = {
532 .description = "CDC Ethernet Device",
533 .flags = FLAG_ETHER | FLAG_POINTTOPOINT,
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
541static const struct driver_info ami_bmc_info = {
542 .description = "AMI BMC USB Ethernet",
543 .flags = FLAG_ETHER | FLAG_POINTTOPOINT | FLAG_LINK_INTR,
544 .bind = usbnet_cdc_bind,
545 .unbind = usbnet_cdc_unbind,
546 .status = usbnet_cdc_status,
547 .set_rx_mode = usbnet_cdc_update_filter,
548 .manage_power = usbnet_manage_power,
549};
550
551static const struct driver_info zte_cdc_info = {
552 .description = "ZTE CDC Ethernet Device",
553 .flags = FLAG_ETHER | FLAG_POINTTOPOINT,
554 .bind = usbnet_cdc_zte_bind,
555 .unbind = usbnet_cdc_unbind,
556 .status = usbnet_cdc_zte_status,
557 .set_rx_mode = usbnet_cdc_update_filter,
558 .manage_power = usbnet_manage_power,
559 .rx_fixup = usbnet_cdc_zte_rx_fixup,
560};
561
562static const struct driver_info wwan_info = {
563 .description = "Mobile Broadband Network Device",
564 .flags = FLAG_WWAN,
565 .bind = usbnet_cdc_bind,
566 .unbind = usbnet_cdc_unbind,
567 .status = usbnet_cdc_status,
568 .set_rx_mode = usbnet_cdc_update_filter,
569 .manage_power = usbnet_manage_power,
570};
571
572/*-------------------------------------------------------------------------*/
573
574#define HUAWEI_VENDOR_ID 0x12D1
575#define NOVATEL_VENDOR_ID 0x1410
576#define ZTE_VENDOR_ID 0x19D2
577#define DELL_VENDOR_ID 0x413C
578#define REALTEK_VENDOR_ID 0x0bda
579#define SAMSUNG_VENDOR_ID 0x04e8
580#define LENOVO_VENDOR_ID 0x17ef
581#define LINKSYS_VENDOR_ID 0x13b1
582#define NVIDIA_VENDOR_ID 0x0955
583#define HP_VENDOR_ID 0x03f0
584#define MICROSOFT_VENDOR_ID 0x045e
585#define UBLOX_VENDOR_ID 0x1546
586#define TPLINK_VENDOR_ID 0x2357
587#define AQUANTIA_VENDOR_ID 0x2eca
588#define ASIX_VENDOR_ID 0x0b95
589
590static const struct usb_device_id products[] = {
591/* BLACKLIST !!
592 *
593 * First blacklist any products that are egregiously nonconformant
594 * with the CDC Ethernet specs. Minor braindamage we cope with; when
595 * they're not even trying, needing a separate driver is only the first
596 * of the differences to show up.
597 */
598
599#define ZAURUS_MASTER_INTERFACE \
600 .bInterfaceClass = USB_CLASS_COMM, \
601 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \
602 .bInterfaceProtocol = USB_CDC_PROTO_NONE
603
604#define ZAURUS_FAKE_INTERFACE \
605 .bInterfaceClass = USB_CLASS_COMM, \
606 .bInterfaceSubClass = USB_CDC_SUBCLASS_MDLM, \
607 .bInterfaceProtocol = USB_CDC_PROTO_NONE
608
609/* SA-1100 based Sharp Zaurus ("collie"), or compatible;
610 * wire-incompatible with true CDC Ethernet implementations.
611 * (And, it seems, needlessly so...)
612 */
613{
614 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
615 | USB_DEVICE_ID_MATCH_DEVICE,
616 .idVendor = 0x04DD,
617 .idProduct = 0x8004,
618 ZAURUS_MASTER_INTERFACE,
619 .driver_info = 0,
620},
621
622/* PXA-25x based Sharp Zaurii. Note that it seems some of these
623 * (later models especially) may have shipped only with firmware
624 * advertising false "CDC MDLM" compatibility ... but we're not
625 * clear which models did that, so for now let's assume the worst.
626 */
627{
628 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
629 | USB_DEVICE_ID_MATCH_DEVICE,
630 .idVendor = 0x04DD,
631 .idProduct = 0x8005, /* A-300 */
632 ZAURUS_MASTER_INTERFACE,
633 .driver_info = 0,
634}, {
635 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
636 | USB_DEVICE_ID_MATCH_DEVICE,
637 .idVendor = 0x04DD,
638 .idProduct = 0x8005, /* A-300 */
639 ZAURUS_FAKE_INTERFACE,
640 .driver_info = 0,
641}, {
642 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
643 | USB_DEVICE_ID_MATCH_DEVICE,
644 .idVendor = 0x04DD,
645 .idProduct = 0x8006, /* B-500/SL-5600 */
646 ZAURUS_MASTER_INTERFACE,
647 .driver_info = 0,
648}, {
649 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
650 | USB_DEVICE_ID_MATCH_DEVICE,
651 .idVendor = 0x04DD,
652 .idProduct = 0x8006, /* B-500/SL-5600 */
653 ZAURUS_FAKE_INTERFACE,
654 .driver_info = 0,
655}, {
656 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
657 | USB_DEVICE_ID_MATCH_DEVICE,
658 .idVendor = 0x04DD,
659 .idProduct = 0x8007, /* C-700 */
660 ZAURUS_MASTER_INTERFACE,
661 .driver_info = 0,
662}, {
663 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
664 | USB_DEVICE_ID_MATCH_DEVICE,
665 .idVendor = 0x04DD,
666 .idProduct = 0x8007, /* C-700 */
667 ZAURUS_FAKE_INTERFACE,
668 .driver_info = 0,
669}, {
670 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
671 | USB_DEVICE_ID_MATCH_DEVICE,
672 .idVendor = 0x04DD,
673 .idProduct = 0x9031, /* C-750 C-760 */
674 ZAURUS_MASTER_INTERFACE,
675 .driver_info = 0,
676}, {
677 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
678 | USB_DEVICE_ID_MATCH_DEVICE,
679 .idVendor = 0x04DD,
680 .idProduct = 0x9032, /* SL-6000 */
681 ZAURUS_MASTER_INTERFACE,
682 .driver_info = 0,
683}, {
684 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
685 | USB_DEVICE_ID_MATCH_DEVICE,
686 .idVendor = 0x04DD,
687 .idProduct = 0x9032, /* SL-6000 */
688 ZAURUS_FAKE_INTERFACE,
689 .driver_info = 0,
690}, {
691 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
692 | USB_DEVICE_ID_MATCH_DEVICE,
693 .idVendor = 0x04DD,
694 /* reported with some C860 units */
695 .idProduct = 0x9050, /* C-860 */
696 ZAURUS_MASTER_INTERFACE,
697 .driver_info = 0,
698},
699
700/* Olympus has some models with a Zaurus-compatible option.
701 * R-1000 uses a FreeScale i.MXL cpu (ARMv4T)
702 */
703{
704 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
705 | USB_DEVICE_ID_MATCH_DEVICE,
706 .idVendor = 0x07B4,
707 .idProduct = 0x0F02, /* R-1000 */
708 ZAURUS_MASTER_INTERFACE,
709 .driver_info = 0,
710},
711
712/* LG Electronics VL600 wants additional headers on every frame */
713{
714 USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM,
715 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
716 .driver_info = 0,
717},
718
719/* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */
720{
721 USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM,
722 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
723 .driver_info = 0,
724},
725
726/* Novatel USB551L and MC551 - handled by qmi_wwan */
727{
728 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0xB001, USB_CLASS_COMM,
729 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
730 .driver_info = 0,
731},
732
733/* Novatel E362 - handled by qmi_wwan */
734{
735 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9010, USB_CLASS_COMM,
736 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
737 .driver_info = 0,
738},
739
740/* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */
741{
742 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8195, USB_CLASS_COMM,
743 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
744 .driver_info = 0,
745},
746
747/* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */
748{
749 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8196, USB_CLASS_COMM,
750 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
751 .driver_info = 0,
752},
753
754/* Dell Wireless 5804 (Novatel E371) - handled by qmi_wwan */
755{
756 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x819b, USB_CLASS_COMM,
757 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
758 .driver_info = 0,
759},
760
761/* Novatel Expedite E371 - handled by qmi_wwan */
762{
763 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9011, USB_CLASS_COMM,
764 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
765 .driver_info = 0,
766},
767
768/* HP lt2523 (Novatel E371) - handled by qmi_wwan */
769{
770 USB_DEVICE_AND_INTERFACE_INFO(HP_VENDOR_ID, 0x421d, USB_CLASS_COMM,
771 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
772 .driver_info = 0,
773},
774
775/* AnyDATA ADU960S - handled by qmi_wwan */
776{
777 USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, USB_CLASS_COMM,
778 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
779 .driver_info = 0,
780},
781
782/* Huawei E1820 - handled by qmi_wwan */
783{
784 USB_DEVICE_INTERFACE_NUMBER(HUAWEI_VENDOR_ID, 0x14ac, 1),
785 .driver_info = 0,
786},
787
788/* Realtek RTL8153 Based USB 3.0 Ethernet Adapters */
789{
790 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8153, USB_CLASS_COMM,
791 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
792 .driver_info = 0,
793},
794
795/* Lenovo Powered USB-C Travel Hub (4X90S92381, based on Realtek RTL8153) */
796{
797 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x721e, USB_CLASS_COMM,
798 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
799 .driver_info = 0,
800},
801
802/* Lenovo ThinkPad Hybrid USB-C with USB-A Dock (40af0135eu, based on Realtek RTL8153) */
803{
804 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0xa359, USB_CLASS_COMM,
805 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
806 .driver_info = 0,
807},
808
809/* Aquantia AQtion USB to 5GbE Controller (based on AQC111U) */
810{
811 USB_DEVICE_AND_INTERFACE_INFO(AQUANTIA_VENDOR_ID, 0xc101,
812 USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
813 USB_CDC_PROTO_NONE),
814 .driver_info = 0,
815},
816
817/* ASIX USB 3.1 Gen1 to 5G Multi-Gigabit Ethernet Adapter(based on AQC111U) */
818{
819 USB_DEVICE_AND_INTERFACE_INFO(ASIX_VENDOR_ID, 0x2790, USB_CLASS_COMM,
820 USB_CDC_SUBCLASS_ETHERNET,
821 USB_CDC_PROTO_NONE),
822 .driver_info = 0,
823},
824
825/* ASIX USB 3.1 Gen1 to 2.5G Multi-Gigabit Ethernet Adapter(based on AQC112U) */
826{
827 USB_DEVICE_AND_INTERFACE_INFO(ASIX_VENDOR_ID, 0x2791, USB_CLASS_COMM,
828 USB_CDC_SUBCLASS_ETHERNET,
829 USB_CDC_PROTO_NONE),
830 .driver_info = 0,
831},
832
833/* USB-C 3.1 to 5GBASE-T Ethernet Adapter (based on AQC111U) */
834{
835 USB_DEVICE_AND_INTERFACE_INFO(0x20f4, 0xe05a, USB_CLASS_COMM,
836 USB_CDC_SUBCLASS_ETHERNET,
837 USB_CDC_PROTO_NONE),
838 .driver_info = 0,
839},
840
841/* QNAP QNA-UC5G1T USB to 5GbE Adapter (based on AQC111U) */
842{
843 USB_DEVICE_AND_INTERFACE_INFO(0x1c04, 0x0015, USB_CLASS_COMM,
844 USB_CDC_SUBCLASS_ETHERNET,
845 USB_CDC_PROTO_NONE),
846 .driver_info = 0,
847},
848
849/* WHITELIST!!!
850 *
851 * CDC Ether uses two interfaces, not necessarily consecutive.
852 * We match the main interface, ignoring the optional device
853 * class so we could handle devices that aren't exclusively
854 * CDC ether.
855 *
856 * NOTE: this match must come AFTER entries blacklisting devices
857 * because of bugs/quirks in a given product (like Zaurus, above).
858 */
859{
860 /* ZTE (Vodafone) K3805-Z */
861 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1003, USB_CLASS_COMM,
862 USB_CDC_SUBCLASS_ETHERNET,
863 USB_CDC_PROTO_NONE),
864 .driver_info = (unsigned long)&wwan_info,
865}, {
866 /* ZTE (Vodafone) K3806-Z */
867 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1015, USB_CLASS_COMM,
868 USB_CDC_SUBCLASS_ETHERNET,
869 USB_CDC_PROTO_NONE),
870 .driver_info = (unsigned long)&wwan_info,
871}, {
872 /* ZTE (Vodafone) K4510-Z */
873 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1173, USB_CLASS_COMM,
874 USB_CDC_SUBCLASS_ETHERNET,
875 USB_CDC_PROTO_NONE),
876 .driver_info = (unsigned long)&wwan_info,
877}, {
878 /* ZTE (Vodafone) K3770-Z */
879 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1177, USB_CLASS_COMM,
880 USB_CDC_SUBCLASS_ETHERNET,
881 USB_CDC_PROTO_NONE),
882 .driver_info = (unsigned long)&wwan_info,
883}, {
884 /* ZTE (Vodafone) K3772-Z */
885 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1181, USB_CLASS_COMM,
886 USB_CDC_SUBCLASS_ETHERNET,
887 USB_CDC_PROTO_NONE),
888 .driver_info = (unsigned long)&wwan_info,
889}, {
890 /* Telit modules */
891 USB_VENDOR_AND_INTERFACE_INFO(0x1bc7, USB_CLASS_COMM,
892 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
893 .driver_info = (kernel_ulong_t) &wwan_info,
894}, {
895 /* Dell DW5580 modules */
896 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x81ba, USB_CLASS_COMM,
897 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
898 .driver_info = (kernel_ulong_t)&wwan_info,
899}, {
900 /* Huawei ME906 and ME909 */
901 USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0x15c1, USB_CLASS_COMM,
902 USB_CDC_SUBCLASS_ETHERNET,
903 USB_CDC_PROTO_NONE),
904 .driver_info = (unsigned long)&wwan_info,
905}, {
906 /* ZTE modules */
907 USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, USB_CLASS_COMM,
908 USB_CDC_SUBCLASS_ETHERNET,
909 USB_CDC_PROTO_NONE),
910 .driver_info = (unsigned long)&zte_cdc_info,
911}, {
912 /* U-blox TOBY-L2 */
913 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1143, USB_CLASS_COMM,
914 USB_CDC_SUBCLASS_ETHERNET,
915 USB_CDC_PROTO_NONE),
916 .driver_info = (unsigned long)&wwan_info,
917}, {
918 /* U-blox SARA-U2 */
919 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1104, USB_CLASS_COMM,
920 USB_CDC_SUBCLASS_ETHERNET,
921 USB_CDC_PROTO_NONE),
922 .driver_info = (unsigned long)&wwan_info,
923}, {
924 /* U-blox LARA-R6 01B */
925 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1313, USB_CLASS_COMM,
926 USB_CDC_SUBCLASS_ETHERNET,
927 USB_CDC_PROTO_NONE),
928 .driver_info = (unsigned long)&wwan_info,
929}, {
930 /* U-blox LARA-L6 */
931 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1343, USB_CLASS_COMM,
932 USB_CDC_SUBCLASS_ETHERNET,
933 USB_CDC_PROTO_NONE),
934 .driver_info = (unsigned long)&wwan_info,
935}, {
936 /* Cinterion PLS8 modem by GEMALTO */
937 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0061, USB_CLASS_COMM,
938 USB_CDC_SUBCLASS_ETHERNET,
939 USB_CDC_PROTO_NONE),
940 .driver_info = (unsigned long)&wwan_info,
941}, {
942 /* Cinterion AHS3 modem by GEMALTO */
943 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0055, USB_CLASS_COMM,
944 USB_CDC_SUBCLASS_ETHERNET,
945 USB_CDC_PROTO_NONE),
946 .driver_info = (unsigned long)&wwan_info,
947}, {
948 /* Cinterion PLS62-W modem by GEMALTO/THALES */
949 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x005b, USB_CLASS_COMM,
950 USB_CDC_SUBCLASS_ETHERNET,
951 USB_CDC_PROTO_NONE),
952 .driver_info = (unsigned long)&wwan_info,
953}, {
954 /* Cinterion PLS83/PLS63 modem by GEMALTO/THALES */
955 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0069, USB_CLASS_COMM,
956 USB_CDC_SUBCLASS_ETHERNET,
957 USB_CDC_PROTO_NONE),
958 .driver_info = (unsigned long)&wwan_info,
959}, {
960 /* AMI BMC gadget */
961 USB_DEVICE_AND_INTERFACE_INFO(0x046b, 0xffb0, USB_CLASS_COMM,
962 USB_CDC_SUBCLASS_ETHERNET,
963 USB_CDC_PROTO_NONE),
964 .driver_info = (unsigned long)&ami_bmc_info,
965}, {
966 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
967 USB_CDC_PROTO_NONE),
968 .driver_info = (unsigned long) &cdc_info,
969}, {
970 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM,
971 USB_CDC_PROTO_NONE),
972 .driver_info = (unsigned long)&wwan_info,
973
974}, {
975 /* Various Huawei modems with a network port like the UMG1831 */
976 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_COMM,
977 USB_CDC_SUBCLASS_ETHERNET, 255),
978 .driver_info = (unsigned long)&wwan_info,
979},
980 { }, /* END */
981};
982MODULE_DEVICE_TABLE(usb, products);
983
984static struct usb_driver cdc_driver = {
985 .name = "cdc_ether",
986 .id_table = products,
987 .probe = usbnet_probe,
988 .disconnect = usbnet_disconnect,
989 .suspend = usbnet_suspend,
990 .resume = usbnet_resume,
991 .reset_resume = usbnet_resume,
992 .supports_autosuspend = 1,
993 .disable_hub_initiated_lpm = 1,
994};
995
996module_usb_driver(cdc_driver);
997
998MODULE_AUTHOR("David Brownell");
999MODULE_DESCRIPTION("USB CDC Ethernet devices");
1000MODULE_LICENSE("GPL");