Version:  2.0.40 2.2.26 2.4.37 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 4.1 4.2 4.3 4.4

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_parsed_header header;
116 
117         if (sizeof(dev->data) < sizeof(*info))
118                 return -EDOM;
119 
120         /* expect strict spec conformance for the descriptors, but
121          * cope with firmware which stores them in the wrong place
122          */
123         if (len == 0 && dev->udev->actconfig->extralen) {
124                 /* Motorola SB4100 (and others: Brad Hards says it's
125                  * from a Broadcom design) put CDC descriptors here
126                  */
127                 buf = dev->udev->actconfig->extra;
128                 len = dev->udev->actconfig->extralen;
129                 dev_dbg(&intf->dev, "CDC descriptors on config\n");
130         }
131 
132         /* Maybe CDC descriptors are after the endpoint?  This bug has
133          * been seen on some 2Wire Inc RNDIS-ish products.
134          */
135         if (len == 0) {
136                 struct usb_host_endpoint        *hep;
137 
138                 hep = intf->cur_altsetting->endpoint;
139                 if (hep) {
140                         buf = hep->extra;
141                         len = hep->extralen;
142                 }
143                 if (len)
144                         dev_dbg(&intf->dev,
145                                 "CDC descriptors on endpoint\n");
146         }
147 
148         /* this assumes that if there's a non-RNDIS vendor variant
149          * of cdc-acm, it'll fail RNDIS requests cleanly.
150          */
151         rndis = (is_rndis(&intf->cur_altsetting->desc) ||
152                  is_activesync(&intf->cur_altsetting->desc) ||
153                  is_wireless_rndis(&intf->cur_altsetting->desc));
154 
155         memset(info, 0, sizeof(*info));
156         info->control = intf;
157 
158         cdc_parse_cdc_header(&header, intf, buf, len);
159 
160         info->u = header.usb_cdc_union_desc;
161         info->header = header.usb_cdc_header_desc;
162         info->ether = header.usb_cdc_ether_desc;
163         /* we need a master/control interface (what we're
164          * probed with) and a slave/data interface; union
165          * descriptors sort this all out.
166          */
167         info->control = usb_ifnum_to_if(dev->udev,
168         info->u->bMasterInterface0);
169         info->data = usb_ifnum_to_if(dev->udev,
170                 info->u->bSlaveInterface0);
171         if (!info->control || !info->data) {
172                 dev_dbg(&intf->dev,
173                         "master #%u/%p slave #%u/%p\n",
174                         info->u->bMasterInterface0,
175                         info->control,
176                         info->u->bSlaveInterface0,
177                         info->data);
178                 /* fall back to hard-wiring for RNDIS */
179                 if (rndis) {
180                         android_rndis_quirk = true;
181                         goto skip;
182                 }
183                 goto bad_desc;
184         }
185         if (info->control != intf) {
186                 dev_dbg(&intf->dev, "bogus CDC Union\n");
187                 /* Ambit USB Cable Modem (and maybe others)
188                  * interchanges master and slave interface.
189                  */
190                 if (info->data == intf) {
191                         info->data = info->control;
192                         info->control = intf;
193                 } else
194                         goto bad_desc;
195         }
196 
197         /* some devices merge these - skip class check */
198         if (info->control == info->data)
199                 goto skip;
200 
201         /* a data interface altsetting does the real i/o */
202         d = &info->data->cur_altsetting->desc;
203         if (d->bInterfaceClass != USB_CLASS_CDC_DATA) {
204                 dev_dbg(&intf->dev, "slave class %u\n",
205                         d->bInterfaceClass);
206                 goto bad_desc;
207         }
208 skip:
209         if (    rndis &&
210                 header.usb_cdc_acm_descriptor &&
211                 header.usb_cdc_acm_descriptor->bmCapabilities) {
212                         dev_dbg(&intf->dev,
213                                 "ACM capabilities %02x, not really RNDIS?\n",
214                                 header.usb_cdc_acm_descriptor->bmCapabilities);
215                         goto bad_desc;
216         }
217 
218         if (header.usb_cdc_ether_desc) {
219                 dev->hard_mtu = le16_to_cpu(info->ether->wMaxSegmentSize);
220                 /* because of Zaurus, we may be ignoring the host
221                  * side link address we were given.
222                  */
223         }
224 
225         if (header.usb_cdc_mdlm_desc &&
226                 memcmp(header.usb_cdc_mdlm_desc->bGUID, mbm_guid, 16)) {
227                 dev_dbg(&intf->dev, "GUID doesn't match\n");
228                 goto bad_desc;
229         }
230 
231         if (header.usb_cdc_mdlm_detail_desc &&
232                 header.usb_cdc_mdlm_detail_desc->bLength <
233                         (sizeof(struct usb_cdc_mdlm_detail_desc) + 1)) {
234                 dev_dbg(&intf->dev, "Descriptor too short\n");
235                 goto bad_desc;
236         }
237 
238 
239 
240         /* Microsoft ActiveSync based and some regular RNDIS devices lack the
241          * CDC descriptors, so we'll hard-wire the interfaces and not check
242          * for descriptors.
243          *
244          * Some Android RNDIS devices have a CDC Union descriptor pointing
245          * to non-existing interfaces.  Ignore that and attempt the same
246          * hard-wired 0 and 1 interfaces.
247          */
248         if (rndis && (!info->u || android_rndis_quirk)) {
249                 info->control = usb_ifnum_to_if(dev->udev, 0);
250                 info->data = usb_ifnum_to_if(dev->udev, 1);
251                 if (!info->control || !info->data || info->control != intf) {
252                         dev_dbg(&intf->dev,
253                                 "rndis: master #0/%p slave #1/%p\n",
254                                 info->control,
255                                 info->data);
256                         goto bad_desc;
257                 }
258 
259         } else if (!info->header || !info->u || (!rndis && !info->ether)) {
260                 dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n",
261                         info->header ? "" : "header ",
262                         info->u ? "" : "union ",
263                         info->ether ? "" : "ether ");
264                 goto bad_desc;
265         }
266 
267         /* claim data interface and set it up ... with side effects.
268          * network traffic can't flow until an altsetting is enabled.
269          */
270         if (info->data != info->control) {
271                 status = usb_driver_claim_interface(driver, info->data, dev);
272                 if (status < 0)
273                         return status;
274         }
275         status = usbnet_get_endpoints(dev, info->data);
276         if (status < 0) {
277                 /* ensure immediate exit from usbnet_disconnect */
278                 usb_set_intfdata(info->data, NULL);
279                 if (info->data != info->control)
280                         usb_driver_release_interface(driver, info->data);
281                 return status;
282         }
283 
284         /* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */
285         if (info->data != info->control)
286                 dev->status = NULL;
287         if (info->control->cur_altsetting->desc.bNumEndpoints == 1) {
288                 struct usb_endpoint_descriptor  *desc;
289 
290                 dev->status = &info->control->cur_altsetting->endpoint [0];
291                 desc = &dev->status->desc;
292                 if (!usb_endpoint_is_int_in(desc) ||
293                     (le16_to_cpu(desc->wMaxPacketSize)
294                      < sizeof(struct usb_cdc_notification)) ||
295                     !desc->bInterval) {
296                         dev_dbg(&intf->dev, "bad notification endpoint\n");
297                         dev->status = NULL;
298                 }
299         }
300         if (rndis && !dev->status) {
301                 dev_dbg(&intf->dev, "missing RNDIS status endpoint\n");
302                 usb_set_intfdata(info->data, NULL);
303                 usb_driver_release_interface(driver, info->data);
304                 return -ENODEV;
305         }
306 
307         /* Some devices don't initialise properly. In particular
308          * the packet filter is not reset. There are devices that
309          * don't do reset all the way. So the packet filter should
310          * be set to a sane initial value.
311          */
312         usbnet_cdc_update_filter(dev);
313 
314         return 0;
315 
316 bad_desc:
317         dev_info(&dev->udev->dev, "bad CDC descriptors\n");
318         return -ENODEV;
319 }
320 EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind);
321 
322 void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf)
323 {
324         struct cdc_state                *info = (void *) &dev->data;
325         struct usb_driver               *driver = driver_of(intf);
326 
327         /* combined interface - nothing  to do */
328         if (info->data == info->control)
329                 return;
330 
331         /* disconnect master --> disconnect slave */
332         if (intf == info->control && info->data) {
333                 /* ensure immediate exit from usbnet_disconnect */
334                 usb_set_intfdata(info->data, NULL);
335                 usb_driver_release_interface(driver, info->data);
336                 info->data = NULL;
337         }
338 
339         /* and vice versa (just in case) */
340         else if (intf == info->data && info->control) {
341                 /* ensure immediate exit from usbnet_disconnect */
342                 usb_set_intfdata(info->control, NULL);
343                 usb_driver_release_interface(driver, info->control);
344                 info->control = NULL;
345         }
346 }
347 EXPORT_SYMBOL_GPL(usbnet_cdc_unbind);
348 
349 /* Communications Device Class, Ethernet Control model
350  *
351  * Takes two interfaces.  The DATA interface is inactive till an altsetting
352  * is selected.  Configuration data includes class descriptors.  There's
353  * an optional status endpoint on the control interface.
354  *
355  * This should interop with whatever the 2.4 "CDCEther.c" driver
356  * (by Brad Hards) talked with, with more functionality.
357  */
358 
359 static void dumpspeed(struct usbnet *dev, __le32 *speeds)
360 {
361         netif_info(dev, timer, dev->net,
362                    "link speeds: %u kbps up, %u kbps down\n",
363                    __le32_to_cpu(speeds[0]) / 1000,
364                    __le32_to_cpu(speeds[1]) / 1000);
365 }
366 
367 void usbnet_cdc_status(struct usbnet *dev, struct urb *urb)
368 {
369         struct usb_cdc_notification     *event;
370 
371         if (urb->actual_length < sizeof(*event))
372                 return;
373 
374         /* SPEED_CHANGE can get split into two 8-byte packets */
375         if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) {
376                 dumpspeed(dev, (__le32 *) urb->transfer_buffer);
377                 return;
378         }
379 
380         event = urb->transfer_buffer;
381         switch (event->bNotificationType) {
382         case USB_CDC_NOTIFY_NETWORK_CONNECTION:
383                 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n",
384                           event->wValue ? "on" : "off");
385                 usbnet_link_change(dev, !!event->wValue, 0);
386                 break;
387         case USB_CDC_NOTIFY_SPEED_CHANGE:       /* tx/rx rates */
388                 netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n",
389                           urb->actual_length);
390                 if (urb->actual_length != (sizeof(*event) + 8))
391                         set_bit(EVENT_STS_SPLIT, &dev->flags);
392                 else
393                         dumpspeed(dev, (__le32 *) &event[1]);
394                 break;
395         /* USB_CDC_NOTIFY_RESPONSE_AVAILABLE can happen too (e.g. RNDIS),
396          * but there are no standard formats for the response data.
397          */
398         default:
399                 netdev_err(dev->net, "CDC: unexpected notification %02x!\n",
400                            event->bNotificationType);
401                 break;
402         }
403 }
404 EXPORT_SYMBOL_GPL(usbnet_cdc_status);
405 
406 int usbnet_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
407 {
408         int                             status;
409         struct cdc_state                *info = (void *) &dev->data;
410 
411         BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data)
412                         < sizeof(struct cdc_state)));
413 
414         status = usbnet_generic_cdc_bind(dev, intf);
415         if (status < 0)
416                 return status;
417 
418         status = usbnet_get_ethernet_addr(dev, info->ether->iMACAddress);
419         if (status < 0) {
420                 usb_set_intfdata(info->data, NULL);
421                 usb_driver_release_interface(driver_of(intf), info->data);
422                 return status;
423         }
424 
425         return 0;
426 }
427 EXPORT_SYMBOL_GPL(usbnet_cdc_bind);
428 
429 static const struct driver_info cdc_info = {
430         .description =  "CDC Ethernet Device",
431         .flags =        FLAG_ETHER | FLAG_POINTTOPOINT,
432         .bind =         usbnet_cdc_bind,
433         .unbind =       usbnet_cdc_unbind,
434         .status =       usbnet_cdc_status,
435         .set_rx_mode =  usbnet_cdc_update_filter,
436         .manage_power = usbnet_manage_power,
437 };
438 
439 static const struct driver_info wwan_info = {
440         .description =  "Mobile Broadband Network Device",
441         .flags =        FLAG_WWAN,
442         .bind =         usbnet_cdc_bind,
443         .unbind =       usbnet_cdc_unbind,
444         .status =       usbnet_cdc_status,
445         .set_rx_mode =  usbnet_cdc_update_filter,
446         .manage_power = usbnet_manage_power,
447 };
448 
449 /*-------------------------------------------------------------------------*/
450 
451 #define HUAWEI_VENDOR_ID        0x12D1
452 #define NOVATEL_VENDOR_ID       0x1410
453 #define ZTE_VENDOR_ID           0x19D2
454 #define DELL_VENDOR_ID          0x413C
455 #define REALTEK_VENDOR_ID       0x0bda
456 #define SAMSUNG_VENDOR_ID       0x04e8
457 #define LENOVO_VENDOR_ID        0x17ef
458 #define NVIDIA_VENDOR_ID        0x0955
459 
460 static const struct usb_device_id       products[] = {
461 /* BLACKLIST !!
462  *
463  * First blacklist any products that are egregiously nonconformant
464  * with the CDC Ethernet specs.  Minor braindamage we cope with; when
465  * they're not even trying, needing a separate driver is only the first
466  * of the differences to show up.
467  */
468 
469 #define ZAURUS_MASTER_INTERFACE \
470         .bInterfaceClass        = USB_CLASS_COMM, \
471         .bInterfaceSubClass     = USB_CDC_SUBCLASS_ETHERNET, \
472         .bInterfaceProtocol     = USB_CDC_PROTO_NONE
473 
474 /* SA-1100 based Sharp Zaurus ("collie"), or compatible;
475  * wire-incompatible with true CDC Ethernet implementations.
476  * (And, it seems, needlessly so...)
477  */
478 {
479         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
480                           | USB_DEVICE_ID_MATCH_DEVICE,
481         .idVendor               = 0x04DD,
482         .idProduct              = 0x8004,
483         ZAURUS_MASTER_INTERFACE,
484         .driver_info            = 0,
485 },
486 
487 /* PXA-25x based Sharp Zaurii.  Note that it seems some of these
488  * (later models especially) may have shipped only with firmware
489  * advertising false "CDC MDLM" compatibility ... but we're not
490  * clear which models did that, so for now let's assume the worst.
491  */
492 {
493         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
494                           | USB_DEVICE_ID_MATCH_DEVICE,
495         .idVendor               = 0x04DD,
496         .idProduct              = 0x8005,       /* A-300 */
497         ZAURUS_MASTER_INTERFACE,
498         .driver_info            = 0,
499 }, {
500         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
501                           | USB_DEVICE_ID_MATCH_DEVICE,
502         .idVendor               = 0x04DD,
503         .idProduct              = 0x8006,       /* B-500/SL-5600 */
504         ZAURUS_MASTER_INTERFACE,
505         .driver_info            = 0,
506 }, {
507         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
508                           | USB_DEVICE_ID_MATCH_DEVICE,
509         .idVendor               = 0x04DD,
510         .idProduct              = 0x8007,       /* C-700 */
511         ZAURUS_MASTER_INTERFACE,
512         .driver_info            = 0,
513 }, {
514         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
515                  | USB_DEVICE_ID_MATCH_DEVICE,
516         .idVendor               = 0x04DD,
517         .idProduct              = 0x9031,       /* C-750 C-760 */
518         ZAURUS_MASTER_INTERFACE,
519         .driver_info            = 0,
520 }, {
521         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
522                  | USB_DEVICE_ID_MATCH_DEVICE,
523         .idVendor               = 0x04DD,
524         .idProduct              = 0x9032,       /* SL-6000 */
525         ZAURUS_MASTER_INTERFACE,
526         .driver_info            = 0,
527 }, {
528         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
529                  | USB_DEVICE_ID_MATCH_DEVICE,
530         .idVendor               = 0x04DD,
531         /* reported with some C860 units */
532         .idProduct              = 0x9050,       /* C-860 */
533         ZAURUS_MASTER_INTERFACE,
534         .driver_info            = 0,
535 },
536 
537 /* Olympus has some models with a Zaurus-compatible option.
538  * R-1000 uses a FreeScale i.MXL cpu (ARMv4T)
539  */
540 {
541         .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
542                  | USB_DEVICE_ID_MATCH_DEVICE,
543         .idVendor               = 0x07B4,
544         .idProduct              = 0x0F02,       /* R-1000 */
545         ZAURUS_MASTER_INTERFACE,
546         .driver_info            = 0,
547 },
548 
549 /* LG Electronics VL600 wants additional headers on every frame */
550 {
551         USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM,
552                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
553         .driver_info = 0,
554 },
555 
556 /* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */
557 {
558         USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM,
559                         USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
560         .driver_info            = 0,
561 },
562 
563 /* Novatel USB551L and MC551 - handled by qmi_wwan */
564 {
565         USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0xB001, USB_CLASS_COMM,
566                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
567         .driver_info = 0,
568 },
569 
570 /* Novatel E362 - handled by qmi_wwan */
571 {
572         USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9010, USB_CLASS_COMM,
573                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
574         .driver_info = 0,
575 },
576 
577 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */
578 {
579         USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8195, USB_CLASS_COMM,
580                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
581         .driver_info = 0,
582 },
583 
584 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */
585 {
586         USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8196, USB_CLASS_COMM,
587                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
588         .driver_info = 0,
589 },
590 
591 /* Dell Wireless 5804 (Novatel E371) - handled by qmi_wwan */
592 {
593         USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x819b, USB_CLASS_COMM,
594                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
595         .driver_info = 0,
596 },
597 
598 /* Novatel Expedite E371 - handled by qmi_wwan */
599 {
600         USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9011, USB_CLASS_COMM,
601                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
602         .driver_info = 0,
603 },
604 
605 /* AnyDATA ADU960S - handled by qmi_wwan */
606 {
607         USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, USB_CLASS_COMM,
608                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
609         .driver_info = 0,
610 },
611 
612 /* Huawei E1820 - handled by qmi_wwan */
613 {
614         USB_DEVICE_INTERFACE_NUMBER(HUAWEI_VENDOR_ID, 0x14ac, 1),
615         .driver_info = 0,
616 },
617 
618 /* Realtek RTL8152 Based USB 2.0 Ethernet Adapters */
619 {
620         USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8152, USB_CLASS_COMM,
621                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
622         .driver_info = 0,
623 },
624 
625 /* Realtek RTL8153 Based USB 3.0 Ethernet Adapters */
626 {
627         USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8153, USB_CLASS_COMM,
628                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
629         .driver_info = 0,
630 },
631 
632 /* Samsung USB Ethernet Adapters */
633 {
634         USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, 0xa101, USB_CLASS_COMM,
635                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
636         .driver_info = 0,
637 },
638 
639 /* Lenovo Thinkpad USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */
640 {
641         USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7205, USB_CLASS_COMM,
642                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
643         .driver_info = 0,
644 },
645 
646 /* NVIDIA Tegra USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */
647 {
648         USB_DEVICE_AND_INTERFACE_INFO(NVIDIA_VENDOR_ID, 0x09ff, USB_CLASS_COMM,
649                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
650         .driver_info = 0,
651 },
652 
653 /* WHITELIST!!!
654  *
655  * CDC Ether uses two interfaces, not necessarily consecutive.
656  * We match the main interface, ignoring the optional device
657  * class so we could handle devices that aren't exclusively
658  * CDC ether.
659  *
660  * NOTE:  this match must come AFTER entries blacklisting devices
661  * because of bugs/quirks in a given product (like Zaurus, above).
662  */
663 {
664         /* ZTE (Vodafone) K3805-Z */
665         USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1003, USB_CLASS_COMM,
666                                       USB_CDC_SUBCLASS_ETHERNET,
667                                       USB_CDC_PROTO_NONE),
668         .driver_info = (unsigned long)&wwan_info,
669 }, {
670         /* ZTE (Vodafone) K3806-Z */
671         USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1015, USB_CLASS_COMM,
672                                       USB_CDC_SUBCLASS_ETHERNET,
673                                       USB_CDC_PROTO_NONE),
674         .driver_info = (unsigned long)&wwan_info,
675 }, {
676         /* ZTE (Vodafone) K4510-Z */
677         USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1173, USB_CLASS_COMM,
678                                       USB_CDC_SUBCLASS_ETHERNET,
679                                       USB_CDC_PROTO_NONE),
680         .driver_info = (unsigned long)&wwan_info,
681 }, {
682         /* ZTE (Vodafone) K3770-Z */
683         USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1177, USB_CLASS_COMM,
684                                       USB_CDC_SUBCLASS_ETHERNET,
685                                       USB_CDC_PROTO_NONE),
686         .driver_info = (unsigned long)&wwan_info,
687 }, {
688         /* ZTE (Vodafone) K3772-Z */
689         USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1181, USB_CLASS_COMM,
690                                       USB_CDC_SUBCLASS_ETHERNET,
691                                       USB_CDC_PROTO_NONE),
692         .driver_info = (unsigned long)&wwan_info,
693 }, {
694         /* Telit modules */
695         USB_VENDOR_AND_INTERFACE_INFO(0x1bc7, USB_CLASS_COMM,
696                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
697         .driver_info = (kernel_ulong_t) &wwan_info,
698 }, {
699         /* Dell DW5580 modules */
700         USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x81ba, USB_CLASS_COMM,
701                         USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
702         .driver_info = (kernel_ulong_t)&wwan_info,
703 }, {
704         USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
705                         USB_CDC_PROTO_NONE),
706         .driver_info = (unsigned long) &cdc_info,
707 }, {
708         USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM,
709                         USB_CDC_PROTO_NONE),
710         .driver_info = (unsigned long)&wwan_info,
711 
712 }, {
713         /* Various Huawei modems with a network port like the UMG1831 */
714         USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_COMM,
715                                       USB_CDC_SUBCLASS_ETHERNET, 255),
716         .driver_info = (unsigned long)&wwan_info,
717 },
718         { },            /* END */
719 };
720 MODULE_DEVICE_TABLE(usb, products);
721 
722 static struct usb_driver cdc_driver = {
723         .name =         "cdc_ether",
724         .id_table =     products,
725         .probe =        usbnet_probe,
726         .disconnect =   usbnet_disconnect,
727         .suspend =      usbnet_suspend,
728         .resume =       usbnet_resume,
729         .reset_resume = usbnet_resume,
730         .supports_autosuspend = 1,
731         .disable_hub_initiated_lpm = 1,
732 };
733 
734 module_usb_driver(cdc_driver);
735 
736 MODULE_AUTHOR("David Brownell");
737 MODULE_DESCRIPTION("USB CDC Ethernet devices");
738 MODULE_LICENSE("GPL");
739 

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