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 /* probes control interface, claims data interface, collects the bulk 71 * endpoints, activates data interface (if needed), maybe sets MTU. 72 * all pure cdc, except for certain firmware workarounds, and knowing 73 * that rndis uses one different rule. 74 */ 75 int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf) 76 { 77 u8 *buf = intf->cur_altsetting->extra; 78 int len = intf->cur_altsetting->extralen; 79 struct usb_interface_descriptor *d; 80 struct cdc_state *info = (void *) &dev->data; 81 int status; 82 int rndis; 83 bool android_rndis_quirk = false; 84 struct usb_driver *driver = driver_of(intf); 85 struct usb_cdc_mdlm_desc *desc = NULL; 86 struct usb_cdc_mdlm_detail_desc *detail = NULL; 87 88 if (sizeof(dev->data) < sizeof(*info)) 89 return -EDOM; 90 91 /* expect strict spec conformance for the descriptors, but 92 * cope with firmware which stores them in the wrong place 93 */ 94 if (len == 0 && dev->udev->actconfig->extralen) { 95 /* Motorola SB4100 (and others: Brad Hards says it's 96 * from a Broadcom design) put CDC descriptors here 97 */ 98 buf = dev->udev->actconfig->extra; 99 len = dev->udev->actconfig->extralen; 100 dev_dbg(&intf->dev, "CDC descriptors on config\n"); 101 } 102 103 /* Maybe CDC descriptors are after the endpoint? This bug has 104 * been seen on some 2Wire Inc RNDIS-ish products. 105 */ 106 if (len == 0) { 107 struct usb_host_endpoint *hep; 108 109 hep = intf->cur_altsetting->endpoint; 110 if (hep) { 111 buf = hep->extra; 112 len = hep->extralen; 113 } 114 if (len) 115 dev_dbg(&intf->dev, 116 "CDC descriptors on endpoint\n"); 117 } 118 119 /* this assumes that if there's a non-RNDIS vendor variant 120 * of cdc-acm, it'll fail RNDIS requests cleanly. 121 */ 122 rndis = (is_rndis(&intf->cur_altsetting->desc) || 123 is_activesync(&intf->cur_altsetting->desc) || 124 is_wireless_rndis(&intf->cur_altsetting->desc)); 125 126 memset(info, 0, sizeof(*info)); 127 info->control = intf; 128 while (len > 3) { 129 if (buf[1] != USB_DT_CS_INTERFACE) 130 goto next_desc; 131 132 /* use bDescriptorSubType to identify the CDC descriptors. 133 * We expect devices with CDC header and union descriptors. 134 * For CDC Ethernet we need the ethernet descriptor. 135 * For RNDIS, ignore two (pointless) CDC modem descriptors 136 * in favor of a complicated OID-based RPC scheme doing what 137 * CDC Ethernet achieves with a simple descriptor. 138 */ 139 switch (buf[2]) { 140 case USB_CDC_HEADER_TYPE: 141 if (info->header) { 142 dev_dbg(&intf->dev, "extra CDC header\n"); 143 goto bad_desc; 144 } 145 info->header = (void *) buf; 146 if (info->header->bLength != sizeof(*info->header)) { 147 dev_dbg(&intf->dev, "CDC header len %u\n", 148 info->header->bLength); 149 goto bad_desc; 150 } 151 break; 152 case USB_CDC_ACM_TYPE: 153 /* paranoia: disambiguate a "real" vendor-specific 154 * modem interface from an RNDIS non-modem. 155 */ 156 if (rndis) { 157 struct usb_cdc_acm_descriptor *acm; 158 159 acm = (void *) buf; 160 if (acm->bmCapabilities) { 161 dev_dbg(&intf->dev, 162 "ACM capabilities %02x, " 163 "not really RNDIS?\n", 164 acm->bmCapabilities); 165 goto bad_desc; 166 } 167 } 168 break; 169 case USB_CDC_UNION_TYPE: 170 if (info->u) { 171 dev_dbg(&intf->dev, "extra CDC union\n"); 172 goto bad_desc; 173 } 174 info->u = (void *) buf; 175 if (info->u->bLength != sizeof(*info->u)) { 176 dev_dbg(&intf->dev, "CDC union len %u\n", 177 info->u->bLength); 178 goto bad_desc; 179 } 180 181 /* we need a master/control interface (what we're 182 * probed with) and a slave/data interface; union 183 * descriptors sort this all out. 184 */ 185 info->control = usb_ifnum_to_if(dev->udev, 186 info->u->bMasterInterface0); 187 info->data = usb_ifnum_to_if(dev->udev, 188 info->u->bSlaveInterface0); 189 if (!info->control || !info->data) { 190 dev_dbg(&intf->dev, 191 "master #%u/%p slave #%u/%p\n", 192 info->u->bMasterInterface0, 193 info->control, 194 info->u->bSlaveInterface0, 195 info->data); 196 /* fall back to hard-wiring for RNDIS */ 197 if (rndis) { 198 android_rndis_quirk = true; 199 goto next_desc; 200 } 201 goto bad_desc; 202 } 203 if (info->control != intf) { 204 dev_dbg(&intf->dev, "bogus CDC Union\n"); 205 /* Ambit USB Cable Modem (and maybe others) 206 * interchanges master and slave interface. 207 */ 208 if (info->data == intf) { 209 info->data = info->control; 210 info->control = intf; 211 } else 212 goto bad_desc; 213 } 214 215 /* some devices merge these - skip class check */ 216 if (info->control == info->data) 217 goto next_desc; 218 219 /* a data interface altsetting does the real i/o */ 220 d = &info->data->cur_altsetting->desc; 221 if (d->bInterfaceClass != USB_CLASS_CDC_DATA) { 222 dev_dbg(&intf->dev, "slave class %u\n", 223 d->bInterfaceClass); 224 goto bad_desc; 225 } 226 break; 227 case USB_CDC_ETHERNET_TYPE: 228 if (info->ether) { 229 dev_dbg(&intf->dev, "extra CDC ether\n"); 230 goto bad_desc; 231 } 232 info->ether = (void *) buf; 233 if (info->ether->bLength != sizeof(*info->ether)) { 234 dev_dbg(&intf->dev, "CDC ether len %u\n", 235 info->ether->bLength); 236 goto bad_desc; 237 } 238 dev->hard_mtu = le16_to_cpu( 239 info->ether->wMaxSegmentSize); 240 /* because of Zaurus, we may be ignoring the host 241 * side link address we were given. 242 */ 243 break; 244 case USB_CDC_MDLM_TYPE: 245 if (desc) { 246 dev_dbg(&intf->dev, "extra MDLM descriptor\n"); 247 goto bad_desc; 248 } 249 250 desc = (void *)buf; 251 252 if (desc->bLength != sizeof(*desc)) 253 goto bad_desc; 254 255 if (memcmp(&desc->bGUID, mbm_guid, 16)) 256 goto bad_desc; 257 break; 258 case USB_CDC_MDLM_DETAIL_TYPE: 259 if (detail) { 260 dev_dbg(&intf->dev, "extra MDLM detail descriptor\n"); 261 goto bad_desc; 262 } 263 264 detail = (void *)buf; 265 266 if (detail->bGuidDescriptorType == 0) { 267 if (detail->bLength < (sizeof(*detail) + 1)) 268 goto bad_desc; 269 } else 270 goto bad_desc; 271 break; 272 } 273 next_desc: 274 len -= buf[0]; /* bLength */ 275 buf += buf[0]; 276 } 277 278 /* Microsoft ActiveSync based and some regular RNDIS devices lack the 279 * CDC descriptors, so we'll hard-wire the interfaces and not check 280 * for descriptors. 281 * 282 * Some Android RNDIS devices have a CDC Union descriptor pointing 283 * to non-existing interfaces. Ignore that and attempt the same 284 * hard-wired 0 and 1 interfaces. 285 */ 286 if (rndis && (!info->u || android_rndis_quirk)) { 287 info->control = usb_ifnum_to_if(dev->udev, 0); 288 info->data = usb_ifnum_to_if(dev->udev, 1); 289 if (!info->control || !info->data || info->control != intf) { 290 dev_dbg(&intf->dev, 291 "rndis: master #0/%p slave #1/%p\n", 292 info->control, 293 info->data); 294 goto bad_desc; 295 } 296 297 } else if (!info->header || !info->u || (!rndis && !info->ether)) { 298 dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n", 299 info->header ? "" : "header ", 300 info->u ? "" : "union ", 301 info->ether ? "" : "ether "); 302 goto bad_desc; 303 } 304 305 /* claim data interface and set it up ... with side effects. 306 * network traffic can't flow until an altsetting is enabled. 307 */ 308 if (info->data != info->control) { 309 status = usb_driver_claim_interface(driver, info->data, dev); 310 if (status < 0) 311 return status; 312 } 313 status = usbnet_get_endpoints(dev, info->data); 314 if (status < 0) { 315 /* ensure immediate exit from usbnet_disconnect */ 316 usb_set_intfdata(info->data, NULL); 317 if (info->data != info->control) 318 usb_driver_release_interface(driver, info->data); 319 return status; 320 } 321 322 /* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */ 323 if (info->data != info->control) 324 dev->status = NULL; 325 if (info->control->cur_altsetting->desc.bNumEndpoints == 1) { 326 struct usb_endpoint_descriptor *desc; 327 328 dev->status = &info->control->cur_altsetting->endpoint [0]; 329 desc = &dev->status->desc; 330 if (!usb_endpoint_is_int_in(desc) || 331 (le16_to_cpu(desc->wMaxPacketSize) 332 < sizeof(struct usb_cdc_notification)) || 333 !desc->bInterval) { 334 dev_dbg(&intf->dev, "bad notification endpoint\n"); 335 dev->status = NULL; 336 } 337 } 338 if (rndis && !dev->status) { 339 dev_dbg(&intf->dev, "missing RNDIS status endpoint\n"); 340 usb_set_intfdata(info->data, NULL); 341 usb_driver_release_interface(driver, info->data); 342 return -ENODEV; 343 } 344 345 /* Some devices don't initialise properly. In particular 346 * the packet filter is not reset. There are devices that 347 * don't do reset all the way. So the packet filter should 348 * be set to a sane initial value. 349 */ 350 usb_control_msg(dev->udev, 351 usb_sndctrlpipe(dev->udev, 0), 352 USB_CDC_SET_ETHERNET_PACKET_FILTER, 353 USB_TYPE_CLASS | USB_RECIP_INTERFACE, 354 USB_CDC_PACKET_TYPE_ALL_MULTICAST | USB_CDC_PACKET_TYPE_DIRECTED | USB_CDC_PACKET_TYPE_BROADCAST, 355 intf->cur_altsetting->desc.bInterfaceNumber, 356 NULL, 357 0, 358 USB_CTRL_SET_TIMEOUT 359 ); 360 return 0; 361 362 bad_desc: 363 dev_info(&dev->udev->dev, "bad CDC descriptors\n"); 364 return -ENODEV; 365 } 366 EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind); 367 368 void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf) 369 { 370 struct cdc_state *info = (void *) &dev->data; 371 struct usb_driver *driver = driver_of(intf); 372 373 /* combined interface - nothing to do */ 374 if (info->data == info->control) 375 return; 376 377 /* disconnect master --> disconnect slave */ 378 if (intf == info->control && info->data) { 379 /* ensure immediate exit from usbnet_disconnect */ 380 usb_set_intfdata(info->data, NULL); 381 usb_driver_release_interface(driver, info->data); 382 info->data = NULL; 383 } 384 385 /* and vice versa (just in case) */ 386 else if (intf == info->data && info->control) { 387 /* ensure immediate exit from usbnet_disconnect */ 388 usb_set_intfdata(info->control, NULL); 389 usb_driver_release_interface(driver, info->control); 390 info->control = NULL; 391 } 392 } 393 EXPORT_SYMBOL_GPL(usbnet_cdc_unbind); 394 395 /* Communications Device Class, Ethernet Control model 396 * 397 * Takes two interfaces. The DATA interface is inactive till an altsetting 398 * is selected. Configuration data includes class descriptors. There's 399 * an optional status endpoint on the control interface. 400 * 401 * This should interop with whatever the 2.4 "CDCEther.c" driver 402 * (by Brad Hards) talked with, with more functionality. 403 */ 404 405 static void dumpspeed(struct usbnet *dev, __le32 *speeds) 406 { 407 netif_info(dev, timer, dev->net, 408 "link speeds: %u kbps up, %u kbps down\n", 409 __le32_to_cpu(speeds[0]) / 1000, 410 __le32_to_cpu(speeds[1]) / 1000); 411 } 412 413 void usbnet_cdc_status(struct usbnet *dev, struct urb *urb) 414 { 415 struct usb_cdc_notification *event; 416 417 if (urb->actual_length < sizeof(*event)) 418 return; 419 420 /* SPEED_CHANGE can get split into two 8-byte packets */ 421 if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) { 422 dumpspeed(dev, (__le32 *) urb->transfer_buffer); 423 return; 424 } 425 426 event = urb->transfer_buffer; 427 switch (event->bNotificationType) { 428 case USB_CDC_NOTIFY_NETWORK_CONNECTION: 429 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n", 430 event->wValue ? "on" : "off"); 431 usbnet_link_change(dev, !!event->wValue, 0); 432 break; 433 case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */ 434 netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n", 435 urb->actual_length); 436 if (urb->actual_length != (sizeof(*event) + 8)) 437 set_bit(EVENT_STS_SPLIT, &dev->flags); 438 else 439 dumpspeed(dev, (__le32 *) &event[1]); 440 break; 441 /* USB_CDC_NOTIFY_RESPONSE_AVAILABLE can happen too (e.g. RNDIS), 442 * but there are no standard formats for the response data. 443 */ 444 default: 445 netdev_err(dev->net, "CDC: unexpected notification %02x!\n", 446 event->bNotificationType); 447 break; 448 } 449 } 450 EXPORT_SYMBOL_GPL(usbnet_cdc_status); 451 452 int usbnet_cdc_bind(struct usbnet *dev, struct usb_interface *intf) 453 { 454 int status; 455 struct cdc_state *info = (void *) &dev->data; 456 457 BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) 458 < sizeof(struct cdc_state))); 459 460 status = usbnet_generic_cdc_bind(dev, intf); 461 if (status < 0) 462 return status; 463 464 status = usbnet_get_ethernet_addr(dev, info->ether->iMACAddress); 465 if (status < 0) { 466 usb_set_intfdata(info->data, NULL); 467 usb_driver_release_interface(driver_of(intf), info->data); 468 return status; 469 } 470 471 /* FIXME cdc-ether has some multicast code too, though it complains 472 * in routine cases. info->ether describes the multicast support. 473 * Implement that here, manipulating the cdc filter as needed. 474 */ 475 return 0; 476 } 477 EXPORT_SYMBOL_GPL(usbnet_cdc_bind); 478 479 static const struct driver_info cdc_info = { 480 .description = "CDC Ethernet Device", 481 .flags = FLAG_ETHER | FLAG_POINTTOPOINT, 482 .bind = usbnet_cdc_bind, 483 .unbind = usbnet_cdc_unbind, 484 .status = usbnet_cdc_status, 485 .manage_power = usbnet_manage_power, 486 }; 487 488 static const struct driver_info wwan_info = { 489 .description = "Mobile Broadband Network Device", 490 .flags = FLAG_WWAN, 491 .bind = usbnet_cdc_bind, 492 .unbind = usbnet_cdc_unbind, 493 .status = usbnet_cdc_status, 494 .manage_power = usbnet_manage_power, 495 }; 496 497 /*-------------------------------------------------------------------------*/ 498 499 #define HUAWEI_VENDOR_ID 0x12D1 500 #define NOVATEL_VENDOR_ID 0x1410 501 #define ZTE_VENDOR_ID 0x19D2 502 #define DELL_VENDOR_ID 0x413C 503 #define REALTEK_VENDOR_ID 0x0bda 504 #define SAMSUNG_VENDOR_ID 0x04e8 505 506 static const struct usb_device_id products[] = { 507 /* BLACKLIST !! 508 * 509 * First blacklist any products that are egregiously nonconformant 510 * with the CDC Ethernet specs. Minor braindamage we cope with; when 511 * they're not even trying, needing a separate driver is only the first 512 * of the differences to show up. 513 */ 514 515 #define ZAURUS_MASTER_INTERFACE \ 516 .bInterfaceClass = USB_CLASS_COMM, \ 517 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \ 518 .bInterfaceProtocol = USB_CDC_PROTO_NONE 519 520 /* SA-1100 based Sharp Zaurus ("collie"), or compatible; 521 * wire-incompatible with true CDC Ethernet implementations. 522 * (And, it seems, needlessly so...) 523 */ 524 { 525 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 526 | USB_DEVICE_ID_MATCH_DEVICE, 527 .idVendor = 0x04DD, 528 .idProduct = 0x8004, 529 ZAURUS_MASTER_INTERFACE, 530 .driver_info = 0, 531 }, 532 533 /* PXA-25x based Sharp Zaurii. Note that it seems some of these 534 * (later models especially) may have shipped only with firmware 535 * advertising false "CDC MDLM" compatibility ... but we're not 536 * clear which models did that, so for now let's assume the worst. 537 */ 538 { 539 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 540 | USB_DEVICE_ID_MATCH_DEVICE, 541 .idVendor = 0x04DD, 542 .idProduct = 0x8005, /* A-300 */ 543 ZAURUS_MASTER_INTERFACE, 544 .driver_info = 0, 545 }, { 546 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 547 | USB_DEVICE_ID_MATCH_DEVICE, 548 .idVendor = 0x04DD, 549 .idProduct = 0x8006, /* B-500/SL-5600 */ 550 ZAURUS_MASTER_INTERFACE, 551 .driver_info = 0, 552 }, { 553 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 554 | USB_DEVICE_ID_MATCH_DEVICE, 555 .idVendor = 0x04DD, 556 .idProduct = 0x8007, /* C-700 */ 557 ZAURUS_MASTER_INTERFACE, 558 .driver_info = 0, 559 }, { 560 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 561 | USB_DEVICE_ID_MATCH_DEVICE, 562 .idVendor = 0x04DD, 563 .idProduct = 0x9031, /* C-750 C-760 */ 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 = 0x9032, /* SL-6000 */ 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 /* reported with some C860 units */ 578 .idProduct = 0x9050, /* C-860 */ 579 ZAURUS_MASTER_INTERFACE, 580 .driver_info = 0, 581 }, 582 583 /* Olympus has some models with a Zaurus-compatible option. 584 * R-1000 uses a FreeScale i.MXL cpu (ARMv4T) 585 */ 586 { 587 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 588 | USB_DEVICE_ID_MATCH_DEVICE, 589 .idVendor = 0x07B4, 590 .idProduct = 0x0F02, /* R-1000 */ 591 ZAURUS_MASTER_INTERFACE, 592 .driver_info = 0, 593 }, 594 595 /* LG Electronics VL600 wants additional headers on every frame */ 596 { 597 USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM, 598 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 599 .driver_info = 0, 600 }, 601 602 /* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */ 603 { 604 USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM, 605 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), 606 .driver_info = 0, 607 }, 608 609 /* Novatel USB551L and MC551 - handled by qmi_wwan */ 610 { 611 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0xB001, USB_CLASS_COMM, 612 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 613 .driver_info = 0, 614 }, 615 616 /* Novatel E362 - handled by qmi_wwan */ 617 { 618 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9010, USB_CLASS_COMM, 619 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 620 .driver_info = 0, 621 }, 622 623 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */ 624 { 625 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8195, USB_CLASS_COMM, 626 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 627 .driver_info = 0, 628 }, 629 630 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */ 631 { 632 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8196, USB_CLASS_COMM, 633 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 634 .driver_info = 0, 635 }, 636 637 /* Dell Wireless 5804 (Novatel E371) - handled by qmi_wwan */ 638 { 639 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x819b, USB_CLASS_COMM, 640 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 641 .driver_info = 0, 642 }, 643 644 /* Novatel Expedite E371 - handled by qmi_wwan */ 645 { 646 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9011, USB_CLASS_COMM, 647 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 648 .driver_info = 0, 649 }, 650 651 /* AnyDATA ADU960S - handled by qmi_wwan */ 652 { 653 USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, USB_CLASS_COMM, 654 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 655 .driver_info = 0, 656 }, 657 658 /* Huawei E1820 - handled by qmi_wwan */ 659 { 660 USB_DEVICE_INTERFACE_NUMBER(HUAWEI_VENDOR_ID, 0x14ac, 1), 661 .driver_info = 0, 662 }, 663 664 /* Realtek RTL8152 Based USB 2.0 Ethernet Adapters */ 665 { 666 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8152, USB_CLASS_COMM, 667 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 668 .driver_info = 0, 669 }, 670 671 /* Realtek RTL8153 Based USB 3.0 Ethernet Adapters */ 672 { 673 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8153, USB_CLASS_COMM, 674 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 675 .driver_info = 0, 676 }, 677 678 /* Samsung USB Ethernet Adapters */ 679 { 680 USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, 0xa101, USB_CLASS_COMM, 681 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 682 .driver_info = 0, 683 }, 684 685 /* WHITELIST!!! 686 * 687 * CDC Ether uses two interfaces, not necessarily consecutive. 688 * We match the main interface, ignoring the optional device 689 * class so we could handle devices that aren't exclusively 690 * CDC ether. 691 * 692 * NOTE: this match must come AFTER entries blacklisting devices 693 * because of bugs/quirks in a given product (like Zaurus, above). 694 */ 695 { 696 /* ZTE (Vodafone) K3805-Z */ 697 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1003, USB_CLASS_COMM, 698 USB_CDC_SUBCLASS_ETHERNET, 699 USB_CDC_PROTO_NONE), 700 .driver_info = (unsigned long)&wwan_info, 701 }, { 702 /* ZTE (Vodafone) K3806-Z */ 703 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1015, USB_CLASS_COMM, 704 USB_CDC_SUBCLASS_ETHERNET, 705 USB_CDC_PROTO_NONE), 706 .driver_info = (unsigned long)&wwan_info, 707 }, { 708 /* ZTE (Vodafone) K4510-Z */ 709 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1173, USB_CLASS_COMM, 710 USB_CDC_SUBCLASS_ETHERNET, 711 USB_CDC_PROTO_NONE), 712 .driver_info = (unsigned long)&wwan_info, 713 }, { 714 /* ZTE (Vodafone) K3770-Z */ 715 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1177, USB_CLASS_COMM, 716 USB_CDC_SUBCLASS_ETHERNET, 717 USB_CDC_PROTO_NONE), 718 .driver_info = (unsigned long)&wwan_info, 719 }, { 720 /* ZTE (Vodafone) K3772-Z */ 721 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1181, USB_CLASS_COMM, 722 USB_CDC_SUBCLASS_ETHERNET, 723 USB_CDC_PROTO_NONE), 724 .driver_info = (unsigned long)&wwan_info, 725 }, { 726 /* Telit modules */ 727 USB_VENDOR_AND_INTERFACE_INFO(0x1bc7, USB_CLASS_COMM, 728 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 729 .driver_info = (kernel_ulong_t) &wwan_info, 730 }, { 731 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, 732 USB_CDC_PROTO_NONE), 733 .driver_info = (unsigned long) &cdc_info, 734 }, { 735 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM, 736 USB_CDC_PROTO_NONE), 737 .driver_info = (unsigned long)&wwan_info, 738 739 }, { 740 /* Various Huawei modems with a network port like the UMG1831 */ 741 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_COMM, 742 USB_CDC_SUBCLASS_ETHERNET, 255), 743 .driver_info = (unsigned long)&wwan_info, 744 }, 745 { }, /* END */ 746 }; 747 MODULE_DEVICE_TABLE(usb, products); 748 749 static struct usb_driver cdc_driver = { 750 .name = "cdc_ether", 751 .id_table = products, 752 .probe = usbnet_probe, 753 .disconnect = usbnet_disconnect, 754 .suspend = usbnet_suspend, 755 .resume = usbnet_resume, 756 .reset_resume = usbnet_resume, 757 .supports_autosuspend = 1, 758 .disable_hub_initiated_lpm = 1, 759 }; 760 761 module_usb_driver(cdc_driver); 762 763 MODULE_AUTHOR("David Brownell"); 764 MODULE_DESCRIPTION("USB CDC Ethernet devices"); 765 MODULE_LICENSE("GPL"); 766