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 if (!info->u) { 164 if (rndis) 165 goto skip; 166 else /* in that case a quirk is mandatory */ 167 goto bad_desc; 168 } 169 /* we need a master/control interface (what we're 170 * probed with) and a slave/data interface; union 171 * descriptors sort this all out. 172 */ 173 info->control = usb_ifnum_to_if(dev->udev, 174 info->u->bMasterInterface0); 175 info->data = usb_ifnum_to_if(dev->udev, 176 info->u->bSlaveInterface0); 177 if (!info->control || !info->data) { 178 dev_dbg(&intf->dev, 179 "master #%u/%p slave #%u/%p\n", 180 info->u->bMasterInterface0, 181 info->control, 182 info->u->bSlaveInterface0, 183 info->data); 184 /* fall back to hard-wiring for RNDIS */ 185 if (rndis) { 186 android_rndis_quirk = true; 187 goto skip; 188 } 189 goto bad_desc; 190 } 191 if (info->control != intf) { 192 dev_dbg(&intf->dev, "bogus CDC Union\n"); 193 /* Ambit USB Cable Modem (and maybe others) 194 * interchanges master and slave interface. 195 */ 196 if (info->data == intf) { 197 info->data = info->control; 198 info->control = intf; 199 } else 200 goto bad_desc; 201 } 202 203 /* some devices merge these - skip class check */ 204 if (info->control == info->data) 205 goto skip; 206 207 /* a data interface altsetting does the real i/o */ 208 d = &info->data->cur_altsetting->desc; 209 if (d->bInterfaceClass != USB_CLASS_CDC_DATA) { 210 dev_dbg(&intf->dev, "slave class %u\n", 211 d->bInterfaceClass); 212 goto bad_desc; 213 } 214 skip: 215 if ( rndis && 216 header.usb_cdc_acm_descriptor && 217 header.usb_cdc_acm_descriptor->bmCapabilities) { 218 dev_dbg(&intf->dev, 219 "ACM capabilities %02x, not really RNDIS?\n", 220 header.usb_cdc_acm_descriptor->bmCapabilities); 221 goto bad_desc; 222 } 223 224 if (header.usb_cdc_ether_desc) { 225 dev->hard_mtu = le16_to_cpu(info->ether->wMaxSegmentSize); 226 /* because of Zaurus, we may be ignoring the host 227 * side link address we were given. 228 */ 229 } 230 231 if (header.usb_cdc_mdlm_desc && 232 memcmp(header.usb_cdc_mdlm_desc->bGUID, mbm_guid, 16)) { 233 dev_dbg(&intf->dev, "GUID doesn't match\n"); 234 goto bad_desc; 235 } 236 237 if (header.usb_cdc_mdlm_detail_desc && 238 header.usb_cdc_mdlm_detail_desc->bLength < 239 (sizeof(struct usb_cdc_mdlm_detail_desc) + 1)) { 240 dev_dbg(&intf->dev, "Descriptor too short\n"); 241 goto bad_desc; 242 } 243 244 245 246 /* Microsoft ActiveSync based and some regular RNDIS devices lack the 247 * CDC descriptors, so we'll hard-wire the interfaces and not check 248 * for descriptors. 249 * 250 * Some Android RNDIS devices have a CDC Union descriptor pointing 251 * to non-existing interfaces. Ignore that and attempt the same 252 * hard-wired 0 and 1 interfaces. 253 */ 254 if (rndis && (!info->u || android_rndis_quirk)) { 255 info->control = usb_ifnum_to_if(dev->udev, 0); 256 info->data = usb_ifnum_to_if(dev->udev, 1); 257 if (!info->control || !info->data || info->control != intf) { 258 dev_dbg(&intf->dev, 259 "rndis: master #0/%p slave #1/%p\n", 260 info->control, 261 info->data); 262 goto bad_desc; 263 } 264 265 } else if (!info->header || (!rndis && !info->ether)) { 266 dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n", 267 info->header ? "" : "header ", 268 info->u ? "" : "union ", 269 info->ether ? "" : "ether "); 270 goto bad_desc; 271 } 272 273 /* claim data interface and set it up ... with side effects. 274 * network traffic can't flow until an altsetting is enabled. 275 */ 276 if (info->data != info->control) { 277 status = usb_driver_claim_interface(driver, info->data, dev); 278 if (status < 0) 279 return status; 280 } 281 status = usbnet_get_endpoints(dev, info->data); 282 if (status < 0) { 283 /* ensure immediate exit from usbnet_disconnect */ 284 usb_set_intfdata(info->data, NULL); 285 if (info->data != info->control) 286 usb_driver_release_interface(driver, info->data); 287 return status; 288 } 289 290 /* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */ 291 if (info->data != info->control) 292 dev->status = NULL; 293 if (info->control->cur_altsetting->desc.bNumEndpoints == 1) { 294 struct usb_endpoint_descriptor *desc; 295 296 dev->status = &info->control->cur_altsetting->endpoint [0]; 297 desc = &dev->status->desc; 298 if (!usb_endpoint_is_int_in(desc) || 299 (le16_to_cpu(desc->wMaxPacketSize) 300 < sizeof(struct usb_cdc_notification)) || 301 !desc->bInterval) { 302 dev_dbg(&intf->dev, "bad notification endpoint\n"); 303 dev->status = NULL; 304 } 305 } 306 if (rndis && !dev->status) { 307 dev_dbg(&intf->dev, "missing RNDIS status endpoint\n"); 308 usb_set_intfdata(info->data, NULL); 309 usb_driver_release_interface(driver, info->data); 310 return -ENODEV; 311 } 312 313 /* Some devices don't initialise properly. In particular 314 * the packet filter is not reset. There are devices that 315 * don't do reset all the way. So the packet filter should 316 * be set to a sane initial value. 317 */ 318 usbnet_cdc_update_filter(dev); 319 320 return 0; 321 322 bad_desc: 323 dev_info(&dev->udev->dev, "bad CDC descriptors\n"); 324 return -ENODEV; 325 } 326 EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind); 327 328 void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf) 329 { 330 struct cdc_state *info = (void *) &dev->data; 331 struct usb_driver *driver = driver_of(intf); 332 333 /* combined interface - nothing to do */ 334 if (info->data == info->control) 335 return; 336 337 /* disconnect master --> disconnect slave */ 338 if (intf == info->control && info->data) { 339 /* ensure immediate exit from usbnet_disconnect */ 340 usb_set_intfdata(info->data, NULL); 341 usb_driver_release_interface(driver, info->data); 342 info->data = NULL; 343 } 344 345 /* and vice versa (just in case) */ 346 else if (intf == info->data && info->control) { 347 /* ensure immediate exit from usbnet_disconnect */ 348 usb_set_intfdata(info->control, NULL); 349 usb_driver_release_interface(driver, info->control); 350 info->control = NULL; 351 } 352 } 353 EXPORT_SYMBOL_GPL(usbnet_cdc_unbind); 354 355 /* Communications Device Class, Ethernet Control model 356 * 357 * Takes two interfaces. The DATA interface is inactive till an altsetting 358 * is selected. Configuration data includes class descriptors. There's 359 * an optional status endpoint on the control interface. 360 * 361 * This should interop with whatever the 2.4 "CDCEther.c" driver 362 * (by Brad Hards) talked with, with more functionality. 363 */ 364 365 static void dumpspeed(struct usbnet *dev, __le32 *speeds) 366 { 367 netif_info(dev, timer, dev->net, 368 "link speeds: %u kbps up, %u kbps down\n", 369 __le32_to_cpu(speeds[0]) / 1000, 370 __le32_to_cpu(speeds[1]) / 1000); 371 } 372 373 void usbnet_cdc_status(struct usbnet *dev, struct urb *urb) 374 { 375 struct usb_cdc_notification *event; 376 377 if (urb->actual_length < sizeof(*event)) 378 return; 379 380 /* SPEED_CHANGE can get split into two 8-byte packets */ 381 if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) { 382 dumpspeed(dev, (__le32 *) urb->transfer_buffer); 383 return; 384 } 385 386 event = urb->transfer_buffer; 387 switch (event->bNotificationType) { 388 case USB_CDC_NOTIFY_NETWORK_CONNECTION: 389 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n", 390 event->wValue ? "on" : "off"); 391 usbnet_link_change(dev, !!event->wValue, 0); 392 break; 393 case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */ 394 netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n", 395 urb->actual_length); 396 if (urb->actual_length != (sizeof(*event) + 8)) 397 set_bit(EVENT_STS_SPLIT, &dev->flags); 398 else 399 dumpspeed(dev, (__le32 *) &event[1]); 400 break; 401 /* USB_CDC_NOTIFY_RESPONSE_AVAILABLE can happen too (e.g. RNDIS), 402 * but there are no standard formats for the response data. 403 */ 404 default: 405 netdev_err(dev->net, "CDC: unexpected notification %02x!\n", 406 event->bNotificationType); 407 break; 408 } 409 } 410 EXPORT_SYMBOL_GPL(usbnet_cdc_status); 411 412 int usbnet_cdc_bind(struct usbnet *dev, struct usb_interface *intf) 413 { 414 int status; 415 struct cdc_state *info = (void *) &dev->data; 416 417 BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) 418 < sizeof(struct cdc_state))); 419 420 status = usbnet_generic_cdc_bind(dev, intf); 421 if (status < 0) 422 return status; 423 424 status = usbnet_get_ethernet_addr(dev, info->ether->iMACAddress); 425 if (status < 0) { 426 usb_set_intfdata(info->data, NULL); 427 usb_driver_release_interface(driver_of(intf), info->data); 428 return status; 429 } 430 431 return 0; 432 } 433 EXPORT_SYMBOL_GPL(usbnet_cdc_bind); 434 435 static int usbnet_cdc_zte_bind(struct usbnet *dev, struct usb_interface *intf) 436 { 437 int status = usbnet_cdc_bind(dev, intf); 438 439 if (!status && (dev->net->dev_addr[0] & 0x02)) 440 eth_hw_addr_random(dev->net); 441 442 return status; 443 } 444 445 /* Make sure packets have correct destination MAC address 446 * 447 * A firmware bug observed on some devices (ZTE MF823/831/910) is that the 448 * device sends packets with a static, bogus, random MAC address (event if 449 * device MAC address has been updated). Always set MAC address to that of the 450 * device. 451 */ 452 static int usbnet_cdc_zte_rx_fixup(struct usbnet *dev, struct sk_buff *skb) 453 { 454 if (skb->len < ETH_HLEN || !(skb->data[0] & 0x02)) 455 return 1; 456 457 skb_reset_mac_header(skb); 458 ether_addr_copy(eth_hdr(skb)->h_dest, dev->net->dev_addr); 459 460 return 1; 461 } 462 463 /* Ensure correct link state 464 * 465 * Some devices (ZTE MF823/831/910) export two carrier on notifications when 466 * connected. This causes the link state to be incorrect. Work around this by 467 * always setting the state to off, then on. 468 */ 469 static void usbnet_cdc_zte_status(struct usbnet *dev, struct urb *urb) 470 { 471 struct usb_cdc_notification *event; 472 473 if (urb->actual_length < sizeof(*event)) 474 return; 475 476 event = urb->transfer_buffer; 477 478 if (event->bNotificationType != USB_CDC_NOTIFY_NETWORK_CONNECTION) { 479 usbnet_cdc_status(dev, urb); 480 return; 481 } 482 483 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n", 484 event->wValue ? "on" : "off"); 485 486 if (event->wValue && 487 netif_carrier_ok(dev->net)) 488 netif_carrier_off(dev->net); 489 490 usbnet_link_change(dev, !!event->wValue, 0); 491 } 492 493 static const struct driver_info cdc_info = { 494 .description = "CDC Ethernet Device", 495 .flags = FLAG_ETHER | FLAG_POINTTOPOINT, 496 .bind = usbnet_cdc_bind, 497 .unbind = usbnet_cdc_unbind, 498 .status = usbnet_cdc_status, 499 .set_rx_mode = usbnet_cdc_update_filter, 500 .manage_power = usbnet_manage_power, 501 }; 502 503 static const struct driver_info zte_cdc_info = { 504 .description = "ZTE CDC Ethernet Device", 505 .flags = FLAG_ETHER | FLAG_POINTTOPOINT, 506 .bind = usbnet_cdc_zte_bind, 507 .unbind = usbnet_cdc_unbind, 508 .status = usbnet_cdc_zte_status, 509 .set_rx_mode = usbnet_cdc_update_filter, 510 .manage_power = usbnet_manage_power, 511 .rx_fixup = usbnet_cdc_zte_rx_fixup, 512 }; 513 514 static const struct driver_info wwan_info = { 515 .description = "Mobile Broadband Network Device", 516 .flags = FLAG_WWAN, 517 .bind = usbnet_cdc_bind, 518 .unbind = usbnet_cdc_unbind, 519 .status = usbnet_cdc_status, 520 .set_rx_mode = usbnet_cdc_update_filter, 521 .manage_power = usbnet_manage_power, 522 }; 523 524 /*-------------------------------------------------------------------------*/ 525 526 #define HUAWEI_VENDOR_ID 0x12D1 527 #define NOVATEL_VENDOR_ID 0x1410 528 #define ZTE_VENDOR_ID 0x19D2 529 #define DELL_VENDOR_ID 0x413C 530 #define REALTEK_VENDOR_ID 0x0bda 531 #define SAMSUNG_VENDOR_ID 0x04e8 532 #define LENOVO_VENDOR_ID 0x17ef 533 #define NVIDIA_VENDOR_ID 0x0955 534 #define HP_VENDOR_ID 0x03f0 535 #define MICROSOFT_VENDOR_ID 0x045e 536 537 static const struct usb_device_id products[] = { 538 /* BLACKLIST !! 539 * 540 * First blacklist any products that are egregiously nonconformant 541 * with the CDC Ethernet specs. Minor braindamage we cope with; when 542 * they're not even trying, needing a separate driver is only the first 543 * of the differences to show up. 544 */ 545 546 #define ZAURUS_MASTER_INTERFACE \ 547 .bInterfaceClass = USB_CLASS_COMM, \ 548 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \ 549 .bInterfaceProtocol = USB_CDC_PROTO_NONE 550 551 /* SA-1100 based Sharp Zaurus ("collie"), or compatible; 552 * wire-incompatible with true CDC Ethernet implementations. 553 * (And, it seems, needlessly so...) 554 */ 555 { 556 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 557 | USB_DEVICE_ID_MATCH_DEVICE, 558 .idVendor = 0x04DD, 559 .idProduct = 0x8004, 560 ZAURUS_MASTER_INTERFACE, 561 .driver_info = 0, 562 }, 563 564 /* PXA-25x based Sharp Zaurii. Note that it seems some of these 565 * (later models especially) may have shipped only with firmware 566 * advertising false "CDC MDLM" compatibility ... but we're not 567 * clear which models did that, so for now let's assume the worst. 568 */ 569 { 570 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 571 | USB_DEVICE_ID_MATCH_DEVICE, 572 .idVendor = 0x04DD, 573 .idProduct = 0x8005, /* A-300 */ 574 ZAURUS_MASTER_INTERFACE, 575 .driver_info = 0, 576 }, { 577 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 578 | USB_DEVICE_ID_MATCH_DEVICE, 579 .idVendor = 0x04DD, 580 .idProduct = 0x8006, /* B-500/SL-5600 */ 581 ZAURUS_MASTER_INTERFACE, 582 .driver_info = 0, 583 }, { 584 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 585 | USB_DEVICE_ID_MATCH_DEVICE, 586 .idVendor = 0x04DD, 587 .idProduct = 0x8007, /* C-700 */ 588 ZAURUS_MASTER_INTERFACE, 589 .driver_info = 0, 590 }, { 591 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 592 | USB_DEVICE_ID_MATCH_DEVICE, 593 .idVendor = 0x04DD, 594 .idProduct = 0x9031, /* C-750 C-760 */ 595 ZAURUS_MASTER_INTERFACE, 596 .driver_info = 0, 597 }, { 598 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 599 | USB_DEVICE_ID_MATCH_DEVICE, 600 .idVendor = 0x04DD, 601 .idProduct = 0x9032, /* SL-6000 */ 602 ZAURUS_MASTER_INTERFACE, 603 .driver_info = 0, 604 }, { 605 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 606 | USB_DEVICE_ID_MATCH_DEVICE, 607 .idVendor = 0x04DD, 608 /* reported with some C860 units */ 609 .idProduct = 0x9050, /* C-860 */ 610 ZAURUS_MASTER_INTERFACE, 611 .driver_info = 0, 612 }, 613 614 /* Olympus has some models with a Zaurus-compatible option. 615 * R-1000 uses a FreeScale i.MXL cpu (ARMv4T) 616 */ 617 { 618 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 619 | USB_DEVICE_ID_MATCH_DEVICE, 620 .idVendor = 0x07B4, 621 .idProduct = 0x0F02, /* R-1000 */ 622 ZAURUS_MASTER_INTERFACE, 623 .driver_info = 0, 624 }, 625 626 /* LG Electronics VL600 wants additional headers on every frame */ 627 { 628 USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM, 629 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 630 .driver_info = 0, 631 }, 632 633 /* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */ 634 { 635 USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM, 636 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), 637 .driver_info = 0, 638 }, 639 640 /* Novatel USB551L and MC551 - handled by qmi_wwan */ 641 { 642 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0xB001, USB_CLASS_COMM, 643 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 644 .driver_info = 0, 645 }, 646 647 /* Novatel E362 - handled by qmi_wwan */ 648 { 649 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9010, USB_CLASS_COMM, 650 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 651 .driver_info = 0, 652 }, 653 654 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */ 655 { 656 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8195, USB_CLASS_COMM, 657 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 658 .driver_info = 0, 659 }, 660 661 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */ 662 { 663 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8196, USB_CLASS_COMM, 664 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 665 .driver_info = 0, 666 }, 667 668 /* Dell Wireless 5804 (Novatel E371) - handled by qmi_wwan */ 669 { 670 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x819b, USB_CLASS_COMM, 671 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 672 .driver_info = 0, 673 }, 674 675 /* Novatel Expedite E371 - handled by qmi_wwan */ 676 { 677 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9011, USB_CLASS_COMM, 678 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 679 .driver_info = 0, 680 }, 681 682 /* HP lt2523 (Novatel E371) - handled by qmi_wwan */ 683 { 684 USB_DEVICE_AND_INTERFACE_INFO(HP_VENDOR_ID, 0x421d, USB_CLASS_COMM, 685 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 686 .driver_info = 0, 687 }, 688 689 /* AnyDATA ADU960S - handled by qmi_wwan */ 690 { 691 USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, USB_CLASS_COMM, 692 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 693 .driver_info = 0, 694 }, 695 696 /* Huawei E1820 - handled by qmi_wwan */ 697 { 698 USB_DEVICE_INTERFACE_NUMBER(HUAWEI_VENDOR_ID, 0x14ac, 1), 699 .driver_info = 0, 700 }, 701 702 /* Realtek RTL8152 Based USB 2.0 Ethernet Adapters */ 703 { 704 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8152, USB_CLASS_COMM, 705 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 706 .driver_info = 0, 707 }, 708 709 /* Realtek RTL8153 Based USB 3.0 Ethernet Adapters */ 710 { 711 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8153, USB_CLASS_COMM, 712 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 713 .driver_info = 0, 714 }, 715 716 /* Samsung USB Ethernet Adapters */ 717 { 718 USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, 0xa101, USB_CLASS_COMM, 719 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 720 .driver_info = 0, 721 }, 722 723 /* ThinkPad USB-C Dock (based on Realtek RTL8153) */ 724 { 725 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3062, USB_CLASS_COMM, 726 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 727 .driver_info = 0, 728 }, 729 730 /* ThinkPad Thunderbolt 3 Dock (based on Realtek RTL8153) */ 731 { 732 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3069, USB_CLASS_COMM, 733 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 734 .driver_info = 0, 735 }, 736 737 /* Lenovo Thinkpad USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */ 738 { 739 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7205, USB_CLASS_COMM, 740 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 741 .driver_info = 0, 742 }, 743 744 /* Lenovo USB C to Ethernet Adapter (based on Realtek RTL8153) */ 745 { 746 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x720c, USB_CLASS_COMM, 747 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 748 .driver_info = 0, 749 }, 750 751 /* Lenovo USB-C Travel Hub (based on Realtek RTL8153) */ 752 { 753 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7214, USB_CLASS_COMM, 754 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 755 .driver_info = 0, 756 }, 757 758 /* NVIDIA Tegra USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */ 759 { 760 USB_DEVICE_AND_INTERFACE_INFO(NVIDIA_VENDOR_ID, 0x09ff, USB_CLASS_COMM, 761 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 762 .driver_info = 0, 763 }, 764 765 /* Microsoft Surface 2 dock (based on Realtek RTL8152) */ 766 { 767 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07ab, USB_CLASS_COMM, 768 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 769 .driver_info = 0, 770 }, 771 772 /* Microsoft Surface 3 dock (based on Realtek RTL8153) */ 773 { 774 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07c6, USB_CLASS_COMM, 775 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 776 .driver_info = 0, 777 }, 778 779 /* WHITELIST!!! 780 * 781 * CDC Ether uses two interfaces, not necessarily consecutive. 782 * We match the main interface, ignoring the optional device 783 * class so we could handle devices that aren't exclusively 784 * CDC ether. 785 * 786 * NOTE: this match must come AFTER entries blacklisting devices 787 * because of bugs/quirks in a given product (like Zaurus, above). 788 */ 789 { 790 /* ZTE (Vodafone) K3805-Z */ 791 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1003, USB_CLASS_COMM, 792 USB_CDC_SUBCLASS_ETHERNET, 793 USB_CDC_PROTO_NONE), 794 .driver_info = (unsigned long)&wwan_info, 795 }, { 796 /* ZTE (Vodafone) K3806-Z */ 797 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1015, USB_CLASS_COMM, 798 USB_CDC_SUBCLASS_ETHERNET, 799 USB_CDC_PROTO_NONE), 800 .driver_info = (unsigned long)&wwan_info, 801 }, { 802 /* ZTE (Vodafone) K4510-Z */ 803 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1173, USB_CLASS_COMM, 804 USB_CDC_SUBCLASS_ETHERNET, 805 USB_CDC_PROTO_NONE), 806 .driver_info = (unsigned long)&wwan_info, 807 }, { 808 /* ZTE (Vodafone) K3770-Z */ 809 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1177, USB_CLASS_COMM, 810 USB_CDC_SUBCLASS_ETHERNET, 811 USB_CDC_PROTO_NONE), 812 .driver_info = (unsigned long)&wwan_info, 813 }, { 814 /* ZTE (Vodafone) K3772-Z */ 815 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1181, USB_CLASS_COMM, 816 USB_CDC_SUBCLASS_ETHERNET, 817 USB_CDC_PROTO_NONE), 818 .driver_info = (unsigned long)&wwan_info, 819 }, { 820 /* Telit modules */ 821 USB_VENDOR_AND_INTERFACE_INFO(0x1bc7, USB_CLASS_COMM, 822 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 823 .driver_info = (kernel_ulong_t) &wwan_info, 824 }, { 825 /* Dell DW5580 modules */ 826 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x81ba, USB_CLASS_COMM, 827 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 828 .driver_info = (kernel_ulong_t)&wwan_info, 829 }, { 830 /* ZTE modules */ 831 USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, USB_CLASS_COMM, 832 USB_CDC_SUBCLASS_ETHERNET, 833 USB_CDC_PROTO_NONE), 834 .driver_info = (unsigned long)&zte_cdc_info, 835 }, { 836 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, 837 USB_CDC_PROTO_NONE), 838 .driver_info = (unsigned long) &cdc_info, 839 }, { 840 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM, 841 USB_CDC_PROTO_NONE), 842 .driver_info = (unsigned long)&wwan_info, 843 844 }, { 845 /* Various Huawei modems with a network port like the UMG1831 */ 846 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_COMM, 847 USB_CDC_SUBCLASS_ETHERNET, 255), 848 .driver_info = (unsigned long)&wwan_info, 849 }, 850 { }, /* END */ 851 }; 852 MODULE_DEVICE_TABLE(usb, products); 853 854 static struct usb_driver cdc_driver = { 855 .name = "cdc_ether", 856 .id_table = products, 857 .probe = usbnet_probe, 858 .disconnect = usbnet_disconnect, 859 .suspend = usbnet_suspend, 860 .resume = usbnet_resume, 861 .reset_resume = usbnet_resume, 862 .supports_autosuspend = 1, 863 .disable_hub_initiated_lpm = 1, 864 }; 865 866 module_usb_driver(cdc_driver); 867 868 MODULE_AUTHOR("David Brownell"); 869 MODULE_DESCRIPTION("USB CDC Ethernet devices"); 870 MODULE_LICENSE("GPL"); 871