Version:  2.0.40 2.2.26 2.4.37 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0

Linux/drivers/net/usb/cdc_ether.c

  1 /*
  2  * CDC Ethernet based networking peripherals
  3  * Copyright (C) 2003-2005 by David Brownell
  4  * Copyright (C) 2006 by Ole Andre Vadla Ravnas (ActiveSync)
  5  *
  6  * This program is free software; you can redistribute it and/or modify
  7  * it under the terms of the GNU General Public License as published by
  8  * the Free Software Foundation; either version 2 of the License, or
  9  * (at your option) any later version.
 10  *
 11  * This program is distributed in the hope that it will be useful,
 12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 14  * GNU General Public License for more details.
 15  *
 16  * You should have received a copy of the GNU General Public License
 17  * along with this program; if not, see <http://www.gnu.org/licenses/>.
 18  */
 19 
 20 // #define      DEBUG                   // error path messages, extra info
 21 // #define      VERBOSE                 // more; success messages
 22 
 23 #include <linux/module.h>
 24 #include <linux/netdevice.h>
 25 #include <linux/etherdevice.h>
 26 #include <linux/ethtool.h>
 27 #include <linux/workqueue.h>
 28 #include <linux/mii.h>
 29 #include <linux/usb.h>
 30 #include <linux/usb/cdc.h>
 31 #include <linux/usb/usbnet.h>
 32 
 33 
 34 #if IS_ENABLED(CONFIG_USB_NET_RNDIS_HOST)
 35 
 36 static int is_rndis(struct usb_interface_descriptor *desc)
 37 {
 38         return (desc->bInterfaceClass == USB_CLASS_COMM &&
 39                 desc->bInterfaceSubClass == 2 &&
 40                 desc->bInterfaceProtocol == 0xff);
 41 }
 42 
 43 static int is_activesync(struct usb_interface_descriptor *desc)
 44 {
 45         return (desc->bInterfaceClass == USB_CLASS_MISC &&
 46                 desc->bInterfaceSubClass == 1 &&
 47                 desc->bInterfaceProtocol == 1);
 48 }
 49 
 50 static int is_wireless_rndis(struct usb_interface_descriptor *desc)
 51 {
 52         return (desc->bInterfaceClass == USB_CLASS_WIRELESS_CONTROLLER &&
 53                 desc->bInterfaceSubClass == 1 &&
 54                 desc->bInterfaceProtocol == 3);
 55 }
 56 
 57 #else
 58 
 59 #define is_rndis(desc)          0
 60 #define is_activesync(desc)     0
 61 #define is_wireless_rndis(desc) 0
 62 
 63 #endif
 64 
 65 static 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 
 70 static void usbnet_cdc_update_filter(struct usbnet *dev)
 71 {
 72         struct cdc_state        *info = (void *) &dev->data;
 73         struct usb_interface    *intf = info->control;
 74         struct net_device       *net = dev->net;
 75 
 76         u16 cdc_filter = USB_CDC_PACKET_TYPE_DIRECTED
 77                         | USB_CDC_PACKET_TYPE_BROADCAST;
 78 
 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
 82          */
 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;
 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 
100 /* probes control interface, claims data interface, collects the bulk
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  */
105 int 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;
113         bool                            android_rndis_quirk = false;
114         struct usb_driver               *driver = driver_of(intf);
115         struct usb_cdc_mdlm_desc        *desc = NULL;
116         struct usb_cdc_mdlm_detail_desc *detail = NULL;
117 
118         if (sizeof(dev->data) < sizeof(*info))
119                 return -EDOM;
120 
121         /* expect strict spec conformance for the descriptors, but
122          * cope with firmware which stores them in the wrong place
123          */
124         if (len == 0 && dev->udev->actconfig->extralen) {
125                 /* Motorola SB4100 (and others: Brad Hards says it's
126                  * from a Broadcom design) put CDC descriptors here
127                  */
128                 buf = dev->udev->actconfig->extra;
129                 len = dev->udev->actconfig->extralen;
130                 dev_dbg(&intf->dev, "CDC descriptors on config\n");
131         }
132 
133         /* Maybe CDC descriptors are after the endpoint?  This bug has
134          * been seen on some 2Wire Inc RNDIS-ish products.
135          */
136         if (len == 0) {
137                 struct usb_host_endpoint        *hep;
138 
139                 hep = intf->cur_altsetting->endpoint;
140                 if (hep) {
141                         buf = hep->extra;
142                         len = hep->extralen;
143                 }
144                 if (len)
145                         dev_dbg(&intf->dev,
146                                 "CDC descriptors on endpoint\n");
147         }
148 
149         /* this assumes that if there's a non-RNDIS vendor variant
150          * of cdc-acm, it'll fail RNDIS requests cleanly.
151          */
152         rndis = (is_rndis(&intf->cur_altsetting->desc) ||
153                  is_activesync(&intf->cur_altsetting->desc) ||
154                  is_wireless_rndis(&intf->cur_altsetting->desc));
155 
156         memset(info, 0, sizeof(*info));
157         info->control = intf;
158         while (len > 3) {
159                 if (buf[1] != USB_DT_CS_INTERFACE)
160                         goto next_desc;
161 
162                 /* use bDescriptorSubType to identify the CDC descriptors.
163                  * We expect devices with CDC header and union descriptors.
164                  * For CDC Ethernet we need the ethernet descriptor.
165                  * For RNDIS, ignore two (pointless) CDC modem descriptors
166                  * in favor of a complicated OID-based RPC scheme doing what
167                  * CDC Ethernet achieves with a simple descriptor.
168                  */
169                 switch (buf[2]) {
170                 case USB_CDC_HEADER_TYPE:
171                         if (info->header) {
172                                 dev_dbg(&intf->dev, "extra CDC header\n");
173                                 goto bad_desc;
174                         }
175                         info->header = (void *) buf;
176                         if (info->header->bLength != sizeof(*info->header)) {
177                                 dev_dbg(&intf->dev, "CDC header len %u\n",
178                                         info->header->bLength);
179                                 goto bad_desc;
180                         }
181                         break;
182                 case USB_CDC_ACM_TYPE:
183                         /* paranoia:  disambiguate a "real" vendor-specific
184                          * modem interface from an RNDIS non-modem.
185                          */
186                         if (rndis) {
187                                 struct usb_cdc_acm_descriptor *acm;
188 
189                                 acm = (void *) buf;
190                                 if (acm->bmCapabilities) {
191                                         dev_dbg(&intf->dev,
192                                                 "ACM capabilities %02x, "
193                                                 "not really RNDIS?\n",
194                                                 acm->bmCapabilities);
195                                         goto bad_desc;
196                                 }
197                         }
198                         break;
199                 case USB_CDC_UNION_TYPE:
200                         if (info->u) {
201                                 dev_dbg(&intf->dev, "extra CDC union\n");
202                                 goto bad_desc;
203                         }
204                         info->u = (void *) buf;
205                         if (info->u->bLength != sizeof(*info->u)) {
206                                 dev_dbg(&intf->dev, "CDC union len %u\n",
207                                         info->u->bLength);
208                                 goto bad_desc;
209                         }
210 
211                         /* we need a master/control interface (what we're
212                          * probed with) and a slave/data interface; union
213                          * descriptors sort this all out.
214                          */
215                         info->control = usb_ifnum_to_if(dev->udev,
216                                                 info->u->bMasterInterface0);
217                         info->data = usb_ifnum_to_if(dev->udev,
218                                                 info->u->bSlaveInterface0);
219                         if (!info->control || !info->data) {
220                                 dev_dbg(&intf->dev,
221                                         "master #%u/%p slave #%u/%p\n",
222                                         info->u->bMasterInterface0,
223                                         info->control,
224                                         info->u->bSlaveInterface0,
225                                         info->data);
226                                 /* fall back to hard-wiring for RNDIS */
227                                 if (rndis) {
228                                         android_rndis_quirk = true;
229                                         goto next_desc;
230                                 }
231                                 goto bad_desc;
232                         }
233                         if (info->control != intf) {
234                                 dev_dbg(&intf->dev, "bogus CDC Union\n");
235                                 /* Ambit USB Cable Modem (and maybe others)
236                                  * interchanges master and slave interface.
237                                  */
238                                 if (info->data == intf) {
239                                         info->data = info->control;
240                                         info->control = intf;
241                                 } else
242                                         goto bad_desc;
243                         }
244 
245                         /* some devices merge these - skip class check */
246                         if (info->control == info->data)
247                                 goto next_desc;
248 
249                         /* a data interface altsetting does the real i/o */
250                         d = &info->data->cur_altsetting->desc;
251                         if (d->bInterfaceClass != USB_CLASS_CDC_DATA) {
252                                 dev_dbg(&intf->dev, "slave class %u\n",
253                                         d->bInterfaceClass);
254                                 goto bad_desc;
255                         }
256                         break;
257                 case USB_CDC_ETHERNET_TYPE:
258                         if (info->ether) {
259                                 dev_dbg(&intf->dev, "extra CDC ether\n");
260                                 goto bad_desc;
261                         }
262                         info->ether = (void *) buf;
263                         if (info->ether->bLength != sizeof(*info->ether)) {
264                                 dev_dbg(&intf->dev, "CDC ether len %u\n",
265                                         info->ether->bLength);
266                                 goto bad_desc;
267                         }
268                         dev->hard_mtu = le16_to_cpu(
269                                                 info->ether->wMaxSegmentSize);
270                         /* because of Zaurus, we may be ignoring the host
271                          * side link address we were given.
272                          */
273                         break;
274                 case USB_CDC_MDLM_TYPE:
275                         if (desc) {
276                                 dev_dbg(&intf->dev, "extra MDLM descriptor\n");
277                                 goto bad_desc;
278                         }
279 
280                         desc = (void *)buf;
281 
282                         if (desc->bLength != sizeof(*desc))
283                                 goto bad_desc;
284 
285                         if (memcmp(&desc->bGUID, mbm_guid, 16))
286                                 goto bad_desc;
287                         break;
288                 case USB_CDC_MDLM_DETAIL_TYPE:
289                         if (detail) {
290                                 dev_dbg(&intf->dev, "extra MDLM detail descriptor\n");
291                                 goto bad_desc;
292                         }
293 
294                         detail = (void *)buf;
295 
296                         if (detail->bGuidDescriptorType == 0) {
297                                 if (detail->bLength < (sizeof(*detail) + 1))
298                                         goto bad_desc;
299                         } else
300                                 goto bad_desc;
301                         break;
302                 }
303 next_desc:
304                 len -= buf[0];  /* bLength */
305                 buf += buf[0];
306         }
307 
308         /* Microsoft ActiveSync based and some regular RNDIS devices lack the
309          * CDC descriptors, so we'll hard-wire the interfaces and not check
310          * for descriptors.
311          *
312          * Some Android RNDIS devices have a CDC Union descriptor pointing
313          * to non-existing interfaces.  Ignore that and attempt the same
314          * hard-wired 0 and 1 interfaces.
315          */
316         if (rndis && (!info->u || android_rndis_quirk)) {
317                 info->control = usb_ifnum_to_if(dev->udev, 0);
318                 info->data = usb_ifnum_to_if(dev->udev, 1);
319                 if (!info->control || !info->data || info->control != intf) {
320                         dev_dbg(&intf->dev,
321                                 "rndis: master #0/%p slave #1/%p\n",
322                                 info->control,
323                                 info->data);
324                         goto bad_desc;
325                 }
326 
327         } else if (!info->header || !info->u || (!rndis && !info->ether)) {
328                 dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n",
329                         info->header ? "" : "header ",
330                         info->u ? "" : "union ",
331                         info->ether ? "" : "ether ");
332                 goto bad_desc;
333         }
334 
335         /* claim data interface and set it up ... with side effects.
336          * network traffic can't flow until an altsetting is enabled.
337          */
338         if (info->data != info->control) {
339                 status = usb_driver_claim_interface(driver, info->data, dev);
340                 if (status < 0)
341                         return status;
342         }
343         status = usbnet_get_endpoints(dev, info->data);
344         if (status < 0) {
345                 /* ensure immediate exit from usbnet_disconnect */
346                 usb_set_intfdata(info->data, NULL);
347                 if (info->data != info->control)
348                         usb_driver_release_interface(driver, info->data);
349                 return status;
350         }
351 
352         /* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */
353         if (info->data != info->control)
354                 dev->status = NULL;
355         if (info->control->cur_altsetting->desc.bNumEndpoints == 1) {
356                 struct usb_endpoint_descriptor  *desc;
357 
358                 dev->status = &info->control->cur_altsetting->endpoint [0];
359                 desc = &dev->status->desc;
360                 if (!usb_endpoint_is_int_in(desc) ||
361                     (le16_to_cpu(desc->wMaxPacketSize)
362                      < sizeof(struct usb_cdc_notification)) ||
363                     !desc->bInterval) {
364                         dev_dbg(&intf->dev, "bad notification endpoint\n");
365                         dev->status = NULL;
366                 }
367         }
368         if (rndis && !dev->status) {
369                 dev_dbg(&intf->dev, "missing RNDIS status endpoint\n");
370                 usb_set_intfdata(info->data, NULL);
371                 usb_driver_release_interface(driver, info->data);
372                 return -ENODEV;
373         }
374 
375         /* Some devices don't initialise properly. In particular
376          * the packet filter is not reset. There are devices that
377          * don't do reset all the way. So the packet filter should
378          * be set to a sane initial value.
379          */
380         usbnet_cdc_update_filter(dev);
381 
382         return 0;
383 
384 bad_desc:
385         dev_info(&dev->udev->dev, "bad CDC descriptors\n");
386         return -ENODEV;
387 }
388 EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind);
389 
390 void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf)
391 {
392         struct cdc_state                *info = (void *) &dev->data;
393         struct usb_driver               *driver = driver_of(intf);
394 
395         /* combined interface - nothing  to do */
396         if (info->data == info->control)
397                 return;
398 
399         /* disconnect master --> disconnect slave */
400         if (intf == info->control && info->data) {
401                 /* ensure immediate exit from usbnet_disconnect */
402                 usb_set_intfdata(info->data, NULL);
403                 usb_driver_release_interface(driver, info->data);
404                 info->data = NULL;
405         }
406 
407         /* and vice versa (just in case) */
408         else if (intf == info->data && info->control) {
409                 /* ensure immediate exit from usbnet_disconnect */
410                 usb_set_intfdata(info->control, NULL);
411                 usb_driver_release_interface(driver, info->control);
412                 info->control = NULL;
413         }
414 }
415 EXPORT_SYMBOL_GPL(usbnet_cdc_unbind);
416 
417 /* Communications Device Class, Ethernet Control model
418  *
419  * Takes two interfaces.  The DATA interface is inactive till an altsetting
420  * is selected.  Configuration data includes class descriptors.  There's
421  * an optional status endpoint on the control interface.
422  *
423  * This should interop with whatever the 2.4 "CDCEther.c" driver
424  * (by Brad Hards) talked with, with more functionality.
425  */
426 
427 static void dumpspeed(struct usbnet *dev, __le32 *speeds)
428 {
429         netif_info(dev, timer, dev->net,
430                    "link speeds: %u kbps up, %u kbps down\n",
431                    __le32_to_cpu(speeds[0]) / 1000,
432                    __le32_to_cpu(speeds[1]) / 1000);
433 }
434 
435 void usbnet_cdc_status(struct usbnet *dev, struct urb *urb)
436 {
437         struct usb_cdc_notification     *event;
438 
439         if (urb->actual_length < sizeof(*event))
440                 return;
441 
442         /* SPEED_CHANGE can get split into two 8-byte packets */
443         if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) {
444                 dumpspeed(dev, (__le32 *) urb->transfer_buffer);
445                 return;
446         }
447 
448         event = urb->transfer_buffer;
449         switch (event->bNotificationType) {
450         case USB_CDC_NOTIFY_NETWORK_CONNECTION:
451                 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n",
452                           event->wValue ? "on" : "off");
453                 usbnet_link_change(dev, !!event->wValue, 0);
454                 break;
455         case USB_CDC_NOTIFY_SPEED_CHANGE:       /* tx/rx rates */
456                 netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n",
457                           urb->actual_length);
458                 if (urb->actual_length != (sizeof(*event) + 8))
459                         set_bit(EVENT_STS_SPLIT, &dev->flags);
460                 else
461                         dumpspeed(dev, (__le32 *) &event[1]);
462                 break;
463         /* USB_CDC_NOTIFY_RESPONSE_AVAILABLE can happen too (e.g. RNDIS),
464          * but there are no standard formats for the response data.
465          */
466         default:
467                 netdev_err(dev->net, "CDC: unexpected notification %02x!\n",
468                            event->bNotificationType);
469                 break;
470         }
471 }
472 EXPORT_SYMBOL_GPL(usbnet_cdc_status);
473 
474 int usbnet_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
475 {
476         int                             status;
477         struct cdc_state                *info = (void *) &dev->data;
478 
479         BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data)
480                         < sizeof(struct cdc_state)));
481 
482         status = usbnet_generic_cdc_bind(dev, intf);
483         if (status < 0)
484                 return status;
485 
486         status = usbnet_get_ethernet_addr(dev, info->ether->iMACAddress);
487         if (status < 0) {
488                 usb_set_intfdata(info->data, NULL);
489                 usb_driver_release_interface(driver_of(intf), info->data);
490                 return status;
491         }
492 
493         return 0;
494 }
495 EXPORT_SYMBOL_GPL(usbnet_cdc_bind);
496 
497 static const struct driver_info cdc_info = {
498         .description =  "CDC Ethernet Device",
499         .flags =        FLAG_ETHER | FLAG_POINTTOPOINT,
500         .bind =         usbnet_cdc_bind,
501         .unbind =       usbnet_cdc_unbind,
502         .status =       usbnet_cdc_status,
503         .set_rx_mode =  usbnet_cdc_update_filter,
504         .manage_power = usbnet_manage_power,
505 };
506 
507 static const struct driver_info wwan_info = {
508         .description =  "Mobile Broadband Network Device",
509         .flags =        FLAG_WWAN,
510         .bind =         usbnet_cdc_bind,
511         .unbind =       usbnet_cdc_unbind,
512         .status =       usbnet_cdc_status,
513         .set_rx_mode =  usbnet_cdc_update_filter,
514         .manage_power = usbnet_manage_power,
515 };
516 
517 /*-------------------------------------------------------------------------*/
518 
519 #define HUAWEI_VENDOR_ID        0x12D1
520 #define NOVATEL_VENDOR_ID       0x1410
521 #define ZTE_VENDOR_ID           0x19D2
522 #define DELL_VENDOR_ID          0x413C
523 #define REALTEK_VENDOR_ID       0x0bda
524 #define SAMSUNG_VENDOR_ID       0x04e8
525 #define LENOVO_VENDOR_ID        0x17ef
526 
527 static const struct usb_device_id       products[] = {
528 /* BLACKLIST !!
529  *
530  * First blacklist any products that are egregiously nonconformant
531  * with the CDC Ethernet specs.  Minor braindamage we cope with; when
532  * they're not even trying, needing a separate driver is only the first
533  * of the differences to show up.
534  */
535 
536 #define ZAURUS_MASTER_INTERFACE \
537         .bInterfaceClass        = USB_CLASS_COMM, \
538         .bInterfaceSubClass     = USB_CDC_SUBCLASS_ETHERNET, \
539         .bInterfaceProtocol     = USB_CDC_PROTO_NONE
540 
541 /* SA-1100 based Sharp Zaurus ("collie"), or compatible;
542  * wire-incompatible with true CDC Ethernet implementations.
543  * (And, it seems, needlessly so...)
544  */
545 {
546         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
547                           | USB_DEVICE_ID_MATCH_DEVICE,
548         .idVendor               = 0x04DD,
549         .idProduct              = 0x8004,
550         ZAURUS_MASTER_INTERFACE,
551         .driver_info            = 0,
552 },
553 
554 /* PXA-25x based Sharp Zaurii.  Note that it seems some of these
555  * (later models especially) may have shipped only with firmware
556  * advertising false "CDC MDLM" compatibility ... but we're not
557  * clear which models did that, so for now let's assume the worst.
558  */
559 {
560         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
561                           | USB_DEVICE_ID_MATCH_DEVICE,
562         .idVendor               = 0x04DD,
563         .idProduct              = 0x8005,       /* A-300 */
564         ZAURUS_MASTER_INTERFACE,
565         .driver_info            = 0,
566 }, {
567         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
568                           | USB_DEVICE_ID_MATCH_DEVICE,
569         .idVendor               = 0x04DD,
570         .idProduct              = 0x8006,       /* B-500/SL-5600 */
571         ZAURUS_MASTER_INTERFACE,
572         .driver_info            = 0,
573 }, {
574         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
575                           | USB_DEVICE_ID_MATCH_DEVICE,
576         .idVendor               = 0x04DD,
577         .idProduct              = 0x8007,       /* C-700 */
578         ZAURUS_MASTER_INTERFACE,
579         .driver_info            = 0,
580 }, {
581         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
582                  | USB_DEVICE_ID_MATCH_DEVICE,
583         .idVendor               = 0x04DD,
584         .idProduct              = 0x9031,       /* C-750 C-760 */
585         ZAURUS_MASTER_INTERFACE,
586         .driver_info            = 0,
587 }, {
588         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
589                  | USB_DEVICE_ID_MATCH_DEVICE,
590         .idVendor               = 0x04DD,
591         .idProduct              = 0x9032,       /* SL-6000 */
592         ZAURUS_MASTER_INTERFACE,
593         .driver_info            = 0,
594 }, {
595         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
596                  | USB_DEVICE_ID_MATCH_DEVICE,
597         .idVendor               = 0x04DD,
598         /* reported with some C860 units */
599         .idProduct              = 0x9050,       /* C-860 */
600         ZAURUS_MASTER_INTERFACE,
601         .driver_info            = 0,
602 },
603 
604 /* Olympus has some models with a Zaurus-compatible option.
605  * R-1000 uses a FreeScale i.MXL cpu (ARMv4T)
606  */
607 {
608         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
609                  | USB_DEVICE_ID_MATCH_DEVICE,
610         .idVendor               = 0x07B4,
611         .idProduct              = 0x0F02,       /* R-1000 */
612         ZAURUS_MASTER_INTERFACE,
613         .driver_info            = 0,
614 },
615 
616 /* LG Electronics VL600 wants additional headers on every frame */
617 {
618         USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM,
619                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
620         .driver_info = 0,
621 },
622 
623 /* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */
624 {
625         USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM,
626                         USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
627         .driver_info            = 0,
628 },
629 
630 /* Novatel USB551L and MC551 - handled by qmi_wwan */
631 {
632         USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0xB001, USB_CLASS_COMM,
633                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
634         .driver_info = 0,
635 },
636 
637 /* Novatel E362 - handled by qmi_wwan */
638 {
639         USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9010, USB_CLASS_COMM,
640                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
641         .driver_info = 0,
642 },
643 
644 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */
645 {
646         USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8195, USB_CLASS_COMM,
647                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
648         .driver_info = 0,
649 },
650 
651 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */
652 {
653         USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8196, USB_CLASS_COMM,
654                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
655         .driver_info = 0,
656 },
657 
658 /* Dell Wireless 5804 (Novatel E371) - handled by qmi_wwan */
659 {
660         USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x819b, USB_CLASS_COMM,
661                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
662         .driver_info = 0,
663 },
664 
665 /* Novatel Expedite E371 - handled by qmi_wwan */
666 {
667         USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9011, USB_CLASS_COMM,
668                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
669         .driver_info = 0,
670 },
671 
672 /* AnyDATA ADU960S - handled by qmi_wwan */
673 {
674         USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, USB_CLASS_COMM,
675                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
676         .driver_info = 0,
677 },
678 
679 /* Huawei E1820 - handled by qmi_wwan */
680 {
681         USB_DEVICE_INTERFACE_NUMBER(HUAWEI_VENDOR_ID, 0x14ac, 1),
682         .driver_info = 0,
683 },
684 
685 /* Realtek RTL8152 Based USB 2.0 Ethernet Adapters */
686 {
687         USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8152, USB_CLASS_COMM,
688                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
689         .driver_info = 0,
690 },
691 
692 /* Realtek RTL8153 Based USB 3.0 Ethernet Adapters */
693 {
694         USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8153, USB_CLASS_COMM,
695                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
696         .driver_info = 0,
697 },
698 
699 /* Samsung USB Ethernet Adapters */
700 {
701         USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, 0xa101, USB_CLASS_COMM,
702                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
703         .driver_info = 0,
704 },
705 
706 /* Lenovo Thinkpad USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */
707 {
708         USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7205, USB_CLASS_COMM,
709                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
710         .driver_info = 0,
711 },
712 
713 /* WHITELIST!!!
714  *
715  * CDC Ether uses two interfaces, not necessarily consecutive.
716  * We match the main interface, ignoring the optional device
717  * class so we could handle devices that aren't exclusively
718  * CDC ether.
719  *
720  * NOTE:  this match must come AFTER entries blacklisting devices
721  * because of bugs/quirks in a given product (like Zaurus, above).
722  */
723 {
724         /* ZTE (Vodafone) K3805-Z */
725         USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1003, USB_CLASS_COMM,
726                                       USB_CDC_SUBCLASS_ETHERNET,
727                                       USB_CDC_PROTO_NONE),
728         .driver_info = (unsigned long)&wwan_info,
729 }, {
730         /* ZTE (Vodafone) K3806-Z */
731         USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1015, USB_CLASS_COMM,
732                                       USB_CDC_SUBCLASS_ETHERNET,
733                                       USB_CDC_PROTO_NONE),
734         .driver_info = (unsigned long)&wwan_info,
735 }, {
736         /* ZTE (Vodafone) K4510-Z */
737         USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1173, USB_CLASS_COMM,
738                                       USB_CDC_SUBCLASS_ETHERNET,
739                                       USB_CDC_PROTO_NONE),
740         .driver_info = (unsigned long)&wwan_info,
741 }, {
742         /* ZTE (Vodafone) K3770-Z */
743         USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1177, USB_CLASS_COMM,
744                                       USB_CDC_SUBCLASS_ETHERNET,
745                                       USB_CDC_PROTO_NONE),
746         .driver_info = (unsigned long)&wwan_info,
747 }, {
748         /* ZTE (Vodafone) K3772-Z */
749         USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1181, USB_CLASS_COMM,
750                                       USB_CDC_SUBCLASS_ETHERNET,
751                                       USB_CDC_PROTO_NONE),
752         .driver_info = (unsigned long)&wwan_info,
753 }, {
754         /* Telit modules */
755         USB_VENDOR_AND_INTERFACE_INFO(0x1bc7, USB_CLASS_COMM,
756                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
757         .driver_info = (kernel_ulong_t) &wwan_info,
758 }, {
759         USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
760                         USB_CDC_PROTO_NONE),
761         .driver_info = (unsigned long) &cdc_info,
762 }, {
763         USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM,
764                         USB_CDC_PROTO_NONE),
765         .driver_info = (unsigned long)&wwan_info,
766 
767 }, {
768         /* Various Huawei modems with a network port like the UMG1831 */
769         USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_COMM,
770                                       USB_CDC_SUBCLASS_ETHERNET, 255),
771         .driver_info = (unsigned long)&wwan_info,
772 },
773         { },            /* END */
774 };
775 MODULE_DEVICE_TABLE(usb, products);
776 
777 static struct usb_driver cdc_driver = {
778         .name =         "cdc_ether",
779         .id_table =     products,
780         .probe =        usbnet_probe,
781         .disconnect =   usbnet_disconnect,
782         .suspend =      usbnet_suspend,
783         .resume =       usbnet_resume,
784         .reset_resume = usbnet_resume,
785         .supports_autosuspend = 1,
786         .disable_hub_initiated_lpm = 1,
787 };
788 
789 module_usb_driver(cdc_driver);
790 
791 MODULE_AUTHOR("David Brownell");
792 MODULE_DESCRIPTION("USB CDC Ethernet devices");
793 MODULE_LICENSE("GPL");
794 

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