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 static int is_novatel_rndis(struct usb_interface_descriptor *desc) 58 { 59 return (desc->bInterfaceClass == USB_CLASS_MISC && 60 desc->bInterfaceSubClass == 4 && 61 desc->bInterfaceProtocol == 1); 62 } 63 64 #else 65 66 #define is_rndis(desc) 0 67 #define is_activesync(desc) 0 68 #define is_wireless_rndis(desc) 0 69 #define is_novatel_rndis(desc) 0 70 71 #endif 72 73 static const u8 mbm_guid[16] = { 74 0xa3, 0x17, 0xa8, 0x8b, 0x04, 0x5e, 0x4f, 0x01, 75 0xa6, 0x07, 0xc0, 0xff, 0xcb, 0x7e, 0x39, 0x2a, 76 }; 77 78 static void usbnet_cdc_update_filter(struct usbnet *dev) 79 { 80 struct cdc_state *info = (void *) &dev->data; 81 struct usb_interface *intf = info->control; 82 struct net_device *net = dev->net; 83 84 u16 cdc_filter = USB_CDC_PACKET_TYPE_DIRECTED 85 | USB_CDC_PACKET_TYPE_BROADCAST; 86 87 /* filtering on the device is an optional feature and not worth 88 * the hassle so we just roughly care about snooping and if any 89 * multicast is requested, we take every multicast 90 */ 91 if (net->flags & IFF_PROMISC) 92 cdc_filter |= USB_CDC_PACKET_TYPE_PROMISCUOUS; 93 if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI)) 94 cdc_filter |= USB_CDC_PACKET_TYPE_ALL_MULTICAST; 95 96 usb_control_msg(dev->udev, 97 usb_sndctrlpipe(dev->udev, 0), 98 USB_CDC_SET_ETHERNET_PACKET_FILTER, 99 USB_TYPE_CLASS | USB_RECIP_INTERFACE, 100 cdc_filter, 101 intf->cur_altsetting->desc.bInterfaceNumber, 102 NULL, 103 0, 104 USB_CTRL_SET_TIMEOUT 105 ); 106 } 107 108 /* probes control interface, claims data interface, collects the bulk 109 * endpoints, activates data interface (if needed), maybe sets MTU. 110 * all pure cdc, except for certain firmware workarounds, and knowing 111 * that rndis uses one different rule. 112 */ 113 int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf) 114 { 115 u8 *buf = intf->cur_altsetting->extra; 116 int len = intf->cur_altsetting->extralen; 117 struct usb_interface_descriptor *d; 118 struct cdc_state *info = (void *) &dev->data; 119 int status; 120 int rndis; 121 bool android_rndis_quirk = false; 122 struct usb_driver *driver = driver_of(intf); 123 struct usb_cdc_parsed_header header; 124 125 if (sizeof(dev->data) < sizeof(*info)) 126 return -EDOM; 127 128 /* expect strict spec conformance for the descriptors, but 129 * cope with firmware which stores them in the wrong place 130 */ 131 if (len == 0 && dev->udev->actconfig->extralen) { 132 /* Motorola SB4100 (and others: Brad Hards says it's 133 * from a Broadcom design) put CDC descriptors here 134 */ 135 buf = dev->udev->actconfig->extra; 136 len = dev->udev->actconfig->extralen; 137 dev_dbg(&intf->dev, "CDC descriptors on config\n"); 138 } 139 140 /* Maybe CDC descriptors are after the endpoint? This bug has 141 * been seen on some 2Wire Inc RNDIS-ish products. 142 */ 143 if (len == 0) { 144 struct usb_host_endpoint *hep; 145 146 hep = intf->cur_altsetting->endpoint; 147 if (hep) { 148 buf = hep->extra; 149 len = hep->extralen; 150 } 151 if (len) 152 dev_dbg(&intf->dev, 153 "CDC descriptors on endpoint\n"); 154 } 155 156 /* this assumes that if there's a non-RNDIS vendor variant 157 * of cdc-acm, it'll fail RNDIS requests cleanly. 158 */ 159 rndis = (is_rndis(&intf->cur_altsetting->desc) || 160 is_activesync(&intf->cur_altsetting->desc) || 161 is_wireless_rndis(&intf->cur_altsetting->desc) || 162 is_novatel_rndis(&intf->cur_altsetting->desc)); 163 164 memset(info, 0, sizeof(*info)); 165 info->control = intf; 166 167 cdc_parse_cdc_header(&header, intf, buf, len); 168 169 info->u = header.usb_cdc_union_desc; 170 info->header = header.usb_cdc_header_desc; 171 info->ether = header.usb_cdc_ether_desc; 172 if (!info->u) { 173 if (rndis) 174 goto skip; 175 else /* in that case a quirk is mandatory */ 176 goto bad_desc; 177 } 178 /* we need a master/control interface (what we're 179 * probed with) and a slave/data interface; union 180 * descriptors sort this all out. 181 */ 182 info->control = usb_ifnum_to_if(dev->udev, 183 info->u->bMasterInterface0); 184 info->data = usb_ifnum_to_if(dev->udev, 185 info->u->bSlaveInterface0); 186 if (!info->control || !info->data) { 187 dev_dbg(&intf->dev, 188 "master #%u/%p slave #%u/%p\n", 189 info->u->bMasterInterface0, 190 info->control, 191 info->u->bSlaveInterface0, 192 info->data); 193 /* fall back to hard-wiring for RNDIS */ 194 if (rndis) { 195 android_rndis_quirk = true; 196 goto skip; 197 } 198 goto bad_desc; 199 } 200 if (info->control != intf) { 201 dev_dbg(&intf->dev, "bogus CDC Union\n"); 202 /* Ambit USB Cable Modem (and maybe others) 203 * interchanges master and slave interface. 204 */ 205 if (info->data == intf) { 206 info->data = info->control; 207 info->control = intf; 208 } else 209 goto bad_desc; 210 } 211 212 /* some devices merge these - skip class check */ 213 if (info->control == info->data) 214 goto skip; 215 216 /* a data interface altsetting does the real i/o */ 217 d = &info->data->cur_altsetting->desc; 218 if (d->bInterfaceClass != USB_CLASS_CDC_DATA) { 219 dev_dbg(&intf->dev, "slave class %u\n", 220 d->bInterfaceClass); 221 goto bad_desc; 222 } 223 skip: 224 if ( rndis && 225 header.usb_cdc_acm_descriptor && 226 header.usb_cdc_acm_descriptor->bmCapabilities) { 227 dev_dbg(&intf->dev, 228 "ACM capabilities %02x, not really RNDIS?\n", 229 header.usb_cdc_acm_descriptor->bmCapabilities); 230 goto bad_desc; 231 } 232 233 if (header.usb_cdc_ether_desc) { 234 dev->hard_mtu = le16_to_cpu(info->ether->wMaxSegmentSize); 235 /* because of Zaurus, we may be ignoring the host 236 * side link address we were given. 237 */ 238 } 239 240 if (header.usb_cdc_mdlm_desc && 241 memcmp(header.usb_cdc_mdlm_desc->bGUID, mbm_guid, 16)) { 242 dev_dbg(&intf->dev, "GUID doesn't match\n"); 243 goto bad_desc; 244 } 245 246 if (header.usb_cdc_mdlm_detail_desc && 247 header.usb_cdc_mdlm_detail_desc->bLength < 248 (sizeof(struct usb_cdc_mdlm_detail_desc) + 1)) { 249 dev_dbg(&intf->dev, "Descriptor too short\n"); 250 goto bad_desc; 251 } 252 253 254 255 /* Microsoft ActiveSync based and some regular RNDIS devices lack the 256 * CDC descriptors, so we'll hard-wire the interfaces and not check 257 * for descriptors. 258 * 259 * Some Android RNDIS devices have a CDC Union descriptor pointing 260 * to non-existing interfaces. Ignore that and attempt the same 261 * hard-wired 0 and 1 interfaces. 262 */ 263 if (rndis && (!info->u || android_rndis_quirk)) { 264 info->control = usb_ifnum_to_if(dev->udev, 0); 265 info->data = usb_ifnum_to_if(dev->udev, 1); 266 if (!info->control || !info->data || info->control != intf) { 267 dev_dbg(&intf->dev, 268 "rndis: master #0/%p slave #1/%p\n", 269 info->control, 270 info->data); 271 goto bad_desc; 272 } 273 274 } else if (!info->header || (!rndis && !info->ether)) { 275 dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n", 276 info->header ? "" : "header ", 277 info->u ? "" : "union ", 278 info->ether ? "" : "ether "); 279 goto bad_desc; 280 } 281 282 /* claim data interface and set it up ... with side effects. 283 * network traffic can't flow until an altsetting is enabled. 284 */ 285 if (info->data != info->control) { 286 status = usb_driver_claim_interface(driver, info->data, dev); 287 if (status < 0) 288 return status; 289 } 290 status = usbnet_get_endpoints(dev, info->data); 291 if (status < 0) { 292 /* ensure immediate exit from usbnet_disconnect */ 293 usb_set_intfdata(info->data, NULL); 294 if (info->data != info->control) 295 usb_driver_release_interface(driver, info->data); 296 return status; 297 } 298 299 /* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */ 300 if (info->data != info->control) 301 dev->status = NULL; 302 if (info->control->cur_altsetting->desc.bNumEndpoints == 1) { 303 struct usb_endpoint_descriptor *desc; 304 305 dev->status = &info->control->cur_altsetting->endpoint [0]; 306 desc = &dev->status->desc; 307 if (!usb_endpoint_is_int_in(desc) || 308 (le16_to_cpu(desc->wMaxPacketSize) 309 < sizeof(struct usb_cdc_notification)) || 310 !desc->bInterval) { 311 dev_dbg(&intf->dev, "bad notification endpoint\n"); 312 dev->status = NULL; 313 } 314 } 315 if (rndis && !dev->status) { 316 dev_dbg(&intf->dev, "missing RNDIS status endpoint\n"); 317 usb_set_intfdata(info->data, NULL); 318 usb_driver_release_interface(driver, info->data); 319 return -ENODEV; 320 } 321 322 return 0; 323 324 bad_desc: 325 dev_info(&dev->udev->dev, "bad CDC descriptors\n"); 326 return -ENODEV; 327 } 328 EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind); 329 330 331 /* like usbnet_generic_cdc_bind() but handles filter initialization 332 * correctly 333 */ 334 int usbnet_ether_cdc_bind(struct usbnet *dev, struct usb_interface *intf) 335 { 336 int rv; 337 338 rv = usbnet_generic_cdc_bind(dev, intf); 339 if (rv < 0) 340 goto bail_out; 341 342 /* Some devices don't initialise properly. In particular 343 * the packet filter is not reset. There are devices that 344 * don't do reset all the way. So the packet filter should 345 * be set to a sane initial value. 346 */ 347 usbnet_cdc_update_filter(dev); 348 349 bail_out: 350 return rv; 351 } 352 EXPORT_SYMBOL_GPL(usbnet_ether_cdc_bind); 353 354 void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf) 355 { 356 struct cdc_state *info = (void *) &dev->data; 357 struct usb_driver *driver = driver_of(intf); 358 359 /* combined interface - nothing to do */ 360 if (info->data == info->control) 361 return; 362 363 /* disconnect master --> disconnect slave */ 364 if (intf == info->control && info->data) { 365 /* ensure immediate exit from usbnet_disconnect */ 366 usb_set_intfdata(info->data, NULL); 367 usb_driver_release_interface(driver, info->data); 368 info->data = NULL; 369 } 370 371 /* and vice versa (just in case) */ 372 else if (intf == info->data && info->control) { 373 /* ensure immediate exit from usbnet_disconnect */ 374 usb_set_intfdata(info->control, NULL); 375 usb_driver_release_interface(driver, info->control); 376 info->control = NULL; 377 } 378 } 379 EXPORT_SYMBOL_GPL(usbnet_cdc_unbind); 380 381 /* Communications Device Class, Ethernet Control model 382 * 383 * Takes two interfaces. The DATA interface is inactive till an altsetting 384 * is selected. Configuration data includes class descriptors. There's 385 * an optional status endpoint on the control interface. 386 * 387 * This should interop with whatever the 2.4 "CDCEther.c" driver 388 * (by Brad Hards) talked with, with more functionality. 389 */ 390 391 static void dumpspeed(struct usbnet *dev, __le32 *speeds) 392 { 393 netif_info(dev, timer, dev->net, 394 "link speeds: %u kbps up, %u kbps down\n", 395 __le32_to_cpu(speeds[0]) / 1000, 396 __le32_to_cpu(speeds[1]) / 1000); 397 } 398 399 void usbnet_cdc_status(struct usbnet *dev, struct urb *urb) 400 { 401 struct usb_cdc_notification *event; 402 403 if (urb->actual_length < sizeof(*event)) 404 return; 405 406 /* SPEED_CHANGE can get split into two 8-byte packets */ 407 if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) { 408 dumpspeed(dev, (__le32 *) urb->transfer_buffer); 409 return; 410 } 411 412 event = urb->transfer_buffer; 413 switch (event->bNotificationType) { 414 case USB_CDC_NOTIFY_NETWORK_CONNECTION: 415 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n", 416 event->wValue ? "on" : "off"); 417 usbnet_link_change(dev, !!event->wValue, 0); 418 break; 419 case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */ 420 netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n", 421 urb->actual_length); 422 if (urb->actual_length != (sizeof(*event) + 8)) 423 set_bit(EVENT_STS_SPLIT, &dev->flags); 424 else 425 dumpspeed(dev, (__le32 *) &event[1]); 426 break; 427 /* USB_CDC_NOTIFY_RESPONSE_AVAILABLE can happen too (e.g. RNDIS), 428 * but there are no standard formats for the response data. 429 */ 430 default: 431 netdev_err(dev->net, "CDC: unexpected notification %02x!\n", 432 event->bNotificationType); 433 break; 434 } 435 } 436 EXPORT_SYMBOL_GPL(usbnet_cdc_status); 437 438 int usbnet_cdc_bind(struct usbnet *dev, struct usb_interface *intf) 439 { 440 int status; 441 struct cdc_state *info = (void *) &dev->data; 442 443 BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) 444 < sizeof(struct cdc_state))); 445 446 status = usbnet_ether_cdc_bind(dev, intf); 447 if (status < 0) 448 return status; 449 450 status = usbnet_get_ethernet_addr(dev, info->ether->iMACAddress); 451 if (status < 0) { 452 usb_set_intfdata(info->data, NULL); 453 usb_driver_release_interface(driver_of(intf), info->data); 454 return status; 455 } 456 457 return 0; 458 } 459 EXPORT_SYMBOL_GPL(usbnet_cdc_bind); 460 461 static int usbnet_cdc_zte_bind(struct usbnet *dev, struct usb_interface *intf) 462 { 463 int status = usbnet_cdc_bind(dev, intf); 464 465 if (!status && (dev->net->dev_addr[0] & 0x02)) 466 eth_hw_addr_random(dev->net); 467 468 return status; 469 } 470 471 /* Make sure packets have correct destination MAC address 472 * 473 * A firmware bug observed on some devices (ZTE MF823/831/910) is that the 474 * device sends packets with a static, bogus, random MAC address (event if 475 * device MAC address has been updated). Always set MAC address to that of the 476 * device. 477 */ 478 static int usbnet_cdc_zte_rx_fixup(struct usbnet *dev, struct sk_buff *skb) 479 { 480 if (skb->len < ETH_HLEN || !(skb->data[0] & 0x02)) 481 return 1; 482 483 skb_reset_mac_header(skb); 484 ether_addr_copy(eth_hdr(skb)->h_dest, dev->net->dev_addr); 485 486 return 1; 487 } 488 489 /* Ensure correct link state 490 * 491 * Some devices (ZTE MF823/831/910) export two carrier on notifications when 492 * connected. This causes the link state to be incorrect. Work around this by 493 * always setting the state to off, then on. 494 */ 495 static void usbnet_cdc_zte_status(struct usbnet *dev, struct urb *urb) 496 { 497 struct usb_cdc_notification *event; 498 499 if (urb->actual_length < sizeof(*event)) 500 return; 501 502 event = urb->transfer_buffer; 503 504 if (event->bNotificationType != USB_CDC_NOTIFY_NETWORK_CONNECTION) { 505 usbnet_cdc_status(dev, urb); 506 return; 507 } 508 509 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n", 510 event->wValue ? "on" : "off"); 511 512 if (event->wValue && 513 netif_carrier_ok(dev->net)) 514 netif_carrier_off(dev->net); 515 516 usbnet_link_change(dev, !!event->wValue, 0); 517 } 518 519 static const struct driver_info cdc_info = { 520 .description = "CDC Ethernet Device", 521 .flags = FLAG_ETHER | FLAG_POINTTOPOINT, 522 .bind = usbnet_cdc_bind, 523 .unbind = usbnet_cdc_unbind, 524 .status = usbnet_cdc_status, 525 .set_rx_mode = usbnet_cdc_update_filter, 526 .manage_power = usbnet_manage_power, 527 }; 528 529 static const struct driver_info zte_cdc_info = { 530 .description = "ZTE CDC Ethernet Device", 531 .flags = FLAG_ETHER | FLAG_POINTTOPOINT, 532 .bind = usbnet_cdc_zte_bind, 533 .unbind = usbnet_cdc_unbind, 534 .status = usbnet_cdc_zte_status, 535 .set_rx_mode = usbnet_cdc_update_filter, 536 .manage_power = usbnet_manage_power, 537 .rx_fixup = usbnet_cdc_zte_rx_fixup, 538 }; 539 540 static const struct driver_info wwan_info = { 541 .description = "Mobile Broadband Network Device", 542 .flags = FLAG_WWAN, 543 .bind = usbnet_cdc_bind, 544 .unbind = usbnet_cdc_unbind, 545 .status = usbnet_cdc_status, 546 .set_rx_mode = usbnet_cdc_update_filter, 547 .manage_power = usbnet_manage_power, 548 }; 549 550 /*-------------------------------------------------------------------------*/ 551 552 #define HUAWEI_VENDOR_ID 0x12D1 553 #define NOVATEL_VENDOR_ID 0x1410 554 #define ZTE_VENDOR_ID 0x19D2 555 #define DELL_VENDOR_ID 0x413C 556 #define REALTEK_VENDOR_ID 0x0bda 557 #define SAMSUNG_VENDOR_ID 0x04e8 558 #define LENOVO_VENDOR_ID 0x17ef 559 #define LINKSYS_VENDOR_ID 0x13b1 560 #define NVIDIA_VENDOR_ID 0x0955 561 #define HP_VENDOR_ID 0x03f0 562 #define MICROSOFT_VENDOR_ID 0x045e 563 #define UBLOX_VENDOR_ID 0x1546 564 565 static const struct usb_device_id products[] = { 566 /* BLACKLIST !! 567 * 568 * First blacklist any products that are egregiously nonconformant 569 * with the CDC Ethernet specs. Minor braindamage we cope with; when 570 * they're not even trying, needing a separate driver is only the first 571 * of the differences to show up. 572 */ 573 574 #define ZAURUS_MASTER_INTERFACE \ 575 .bInterfaceClass = USB_CLASS_COMM, \ 576 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \ 577 .bInterfaceProtocol = USB_CDC_PROTO_NONE 578 579 /* SA-1100 based Sharp Zaurus ("collie"), or compatible; 580 * wire-incompatible with true CDC Ethernet implementations. 581 * (And, it seems, needlessly so...) 582 */ 583 { 584 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 585 | USB_DEVICE_ID_MATCH_DEVICE, 586 .idVendor = 0x04DD, 587 .idProduct = 0x8004, 588 ZAURUS_MASTER_INTERFACE, 589 .driver_info = 0, 590 }, 591 592 /* PXA-25x based Sharp Zaurii. Note that it seems some of these 593 * (later models especially) may have shipped only with firmware 594 * advertising false "CDC MDLM" compatibility ... but we're not 595 * clear which models did that, so for now let's assume the worst. 596 */ 597 { 598 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 599 | USB_DEVICE_ID_MATCH_DEVICE, 600 .idVendor = 0x04DD, 601 .idProduct = 0x8005, /* A-300 */ 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 .idProduct = 0x8006, /* B-500/SL-5600 */ 609 ZAURUS_MASTER_INTERFACE, 610 .driver_info = 0, 611 }, { 612 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 613 | USB_DEVICE_ID_MATCH_DEVICE, 614 .idVendor = 0x04DD, 615 .idProduct = 0x8007, /* C-700 */ 616 ZAURUS_MASTER_INTERFACE, 617 .driver_info = 0, 618 }, { 619 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 620 | USB_DEVICE_ID_MATCH_DEVICE, 621 .idVendor = 0x04DD, 622 .idProduct = 0x9031, /* C-750 C-760 */ 623 ZAURUS_MASTER_INTERFACE, 624 .driver_info = 0, 625 }, { 626 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 627 | USB_DEVICE_ID_MATCH_DEVICE, 628 .idVendor = 0x04DD, 629 .idProduct = 0x9032, /* SL-6000 */ 630 ZAURUS_MASTER_INTERFACE, 631 .driver_info = 0, 632 }, { 633 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 634 | USB_DEVICE_ID_MATCH_DEVICE, 635 .idVendor = 0x04DD, 636 /* reported with some C860 units */ 637 .idProduct = 0x9050, /* C-860 */ 638 ZAURUS_MASTER_INTERFACE, 639 .driver_info = 0, 640 }, 641 642 /* Olympus has some models with a Zaurus-compatible option. 643 * R-1000 uses a FreeScale i.MXL cpu (ARMv4T) 644 */ 645 { 646 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 647 | USB_DEVICE_ID_MATCH_DEVICE, 648 .idVendor = 0x07B4, 649 .idProduct = 0x0F02, /* R-1000 */ 650 ZAURUS_MASTER_INTERFACE, 651 .driver_info = 0, 652 }, 653 654 /* LG Electronics VL600 wants additional headers on every frame */ 655 { 656 USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM, 657 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 658 .driver_info = 0, 659 }, 660 661 /* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */ 662 { 663 USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM, 664 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), 665 .driver_info = 0, 666 }, 667 668 /* Novatel USB551L and MC551 - handled by qmi_wwan */ 669 { 670 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0xB001, USB_CLASS_COMM, 671 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 672 .driver_info = 0, 673 }, 674 675 /* Novatel E362 - handled by qmi_wwan */ 676 { 677 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9010, USB_CLASS_COMM, 678 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 679 .driver_info = 0, 680 }, 681 682 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */ 683 { 684 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8195, USB_CLASS_COMM, 685 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 686 .driver_info = 0, 687 }, 688 689 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */ 690 { 691 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8196, USB_CLASS_COMM, 692 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 693 .driver_info = 0, 694 }, 695 696 /* Dell Wireless 5804 (Novatel E371) - handled by qmi_wwan */ 697 { 698 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x819b, USB_CLASS_COMM, 699 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 700 .driver_info = 0, 701 }, 702 703 /* Novatel Expedite E371 - handled by qmi_wwan */ 704 { 705 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9011, USB_CLASS_COMM, 706 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 707 .driver_info = 0, 708 }, 709 710 /* HP lt2523 (Novatel E371) - handled by qmi_wwan */ 711 { 712 USB_DEVICE_AND_INTERFACE_INFO(HP_VENDOR_ID, 0x421d, USB_CLASS_COMM, 713 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 714 .driver_info = 0, 715 }, 716 717 /* AnyDATA ADU960S - handled by qmi_wwan */ 718 { 719 USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, USB_CLASS_COMM, 720 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 721 .driver_info = 0, 722 }, 723 724 /* Huawei E1820 - handled by qmi_wwan */ 725 { 726 USB_DEVICE_INTERFACE_NUMBER(HUAWEI_VENDOR_ID, 0x14ac, 1), 727 .driver_info = 0, 728 }, 729 730 /* Realtek RTL8152 Based USB 2.0 Ethernet Adapters */ 731 { 732 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8152, USB_CLASS_COMM, 733 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 734 .driver_info = 0, 735 }, 736 737 /* Realtek RTL8153 Based USB 3.0 Ethernet Adapters */ 738 { 739 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8153, USB_CLASS_COMM, 740 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 741 .driver_info = 0, 742 }, 743 744 /* Samsung USB Ethernet Adapters */ 745 { 746 USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, 0xa101, USB_CLASS_COMM, 747 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 748 .driver_info = 0, 749 }, 750 751 #if IS_ENABLED(CONFIG_USB_RTL8152) 752 /* Linksys USB3GIGV1 Ethernet Adapter */ 753 { 754 USB_DEVICE_AND_INTERFACE_INFO(LINKSYS_VENDOR_ID, 0x0041, USB_CLASS_COMM, 755 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 756 .driver_info = 0, 757 }, 758 #endif 759 760 /* ThinkPad USB-C Dock (based on Realtek RTL8153) */ 761 { 762 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3062, USB_CLASS_COMM, 763 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 764 .driver_info = 0, 765 }, 766 767 /* ThinkPad Thunderbolt 3 Dock (based on Realtek RTL8153) */ 768 { 769 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3069, USB_CLASS_COMM, 770 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 771 .driver_info = 0, 772 }, 773 774 /* Lenovo Thinkpad USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */ 775 { 776 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7205, USB_CLASS_COMM, 777 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 778 .driver_info = 0, 779 }, 780 781 /* Lenovo USB C to Ethernet Adapter (based on Realtek RTL8153) */ 782 { 783 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x720c, USB_CLASS_COMM, 784 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 785 .driver_info = 0, 786 }, 787 788 /* Lenovo USB-C Travel Hub (based on Realtek RTL8153) */ 789 { 790 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7214, USB_CLASS_COMM, 791 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 792 .driver_info = 0, 793 }, 794 795 /* NVIDIA Tegra USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */ 796 { 797 USB_DEVICE_AND_INTERFACE_INFO(NVIDIA_VENDOR_ID, 0x09ff, USB_CLASS_COMM, 798 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 799 .driver_info = 0, 800 }, 801 802 /* Microsoft Surface 2 dock (based on Realtek RTL8152) */ 803 { 804 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07ab, USB_CLASS_COMM, 805 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 806 .driver_info = 0, 807 }, 808 809 /* Microsoft Surface 3 dock (based on Realtek RTL8153) */ 810 { 811 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07c6, USB_CLASS_COMM, 812 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 813 .driver_info = 0, 814 }, 815 816 /* WHITELIST!!! 817 * 818 * CDC Ether uses two interfaces, not necessarily consecutive. 819 * We match the main interface, ignoring the optional device 820 * class so we could handle devices that aren't exclusively 821 * CDC ether. 822 * 823 * NOTE: this match must come AFTER entries blacklisting devices 824 * because of bugs/quirks in a given product (like Zaurus, above). 825 */ 826 { 827 /* ZTE (Vodafone) K3805-Z */ 828 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1003, USB_CLASS_COMM, 829 USB_CDC_SUBCLASS_ETHERNET, 830 USB_CDC_PROTO_NONE), 831 .driver_info = (unsigned long)&wwan_info, 832 }, { 833 /* ZTE (Vodafone) K3806-Z */ 834 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1015, USB_CLASS_COMM, 835 USB_CDC_SUBCLASS_ETHERNET, 836 USB_CDC_PROTO_NONE), 837 .driver_info = (unsigned long)&wwan_info, 838 }, { 839 /* ZTE (Vodafone) K4510-Z */ 840 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1173, USB_CLASS_COMM, 841 USB_CDC_SUBCLASS_ETHERNET, 842 USB_CDC_PROTO_NONE), 843 .driver_info = (unsigned long)&wwan_info, 844 }, { 845 /* ZTE (Vodafone) K3770-Z */ 846 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1177, USB_CLASS_COMM, 847 USB_CDC_SUBCLASS_ETHERNET, 848 USB_CDC_PROTO_NONE), 849 .driver_info = (unsigned long)&wwan_info, 850 }, { 851 /* ZTE (Vodafone) K3772-Z */ 852 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1181, USB_CLASS_COMM, 853 USB_CDC_SUBCLASS_ETHERNET, 854 USB_CDC_PROTO_NONE), 855 .driver_info = (unsigned long)&wwan_info, 856 }, { 857 /* Telit modules */ 858 USB_VENDOR_AND_INTERFACE_INFO(0x1bc7, USB_CLASS_COMM, 859 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 860 .driver_info = (kernel_ulong_t) &wwan_info, 861 }, { 862 /* Dell DW5580 modules */ 863 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x81ba, USB_CLASS_COMM, 864 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 865 .driver_info = (kernel_ulong_t)&wwan_info, 866 }, { 867 /* ZTE modules */ 868 USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, USB_CLASS_COMM, 869 USB_CDC_SUBCLASS_ETHERNET, 870 USB_CDC_PROTO_NONE), 871 .driver_info = (unsigned long)&zte_cdc_info, 872 }, { 873 /* U-blox TOBY-L2 */ 874 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1143, USB_CLASS_COMM, 875 USB_CDC_SUBCLASS_ETHERNET, 876 USB_CDC_PROTO_NONE), 877 .driver_info = (unsigned long)&wwan_info, 878 }, { 879 /* U-blox SARA-U2 */ 880 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1104, USB_CLASS_COMM, 881 USB_CDC_SUBCLASS_ETHERNET, 882 USB_CDC_PROTO_NONE), 883 .driver_info = (unsigned long)&wwan_info, 884 }, { 885 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, 886 USB_CDC_PROTO_NONE), 887 .driver_info = (unsigned long) &cdc_info, 888 }, { 889 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM, 890 USB_CDC_PROTO_NONE), 891 .driver_info = (unsigned long)&wwan_info, 892 893 }, { 894 /* Various Huawei modems with a network port like the UMG1831 */ 895 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_COMM, 896 USB_CDC_SUBCLASS_ETHERNET, 255), 897 .driver_info = (unsigned long)&wwan_info, 898 }, 899 { }, /* END */ 900 }; 901 MODULE_DEVICE_TABLE(usb, products); 902 903 static struct usb_driver cdc_driver = { 904 .name = "cdc_ether", 905 .id_table = products, 906 .probe = usbnet_probe, 907 .disconnect = usbnet_disconnect, 908 .suspend = usbnet_suspend, 909 .resume = usbnet_resume, 910 .reset_resume = usbnet_resume, 911 .supports_autosuspend = 1, 912 .disable_hub_initiated_lpm = 1, 913 }; 914 915 module_usb_driver(cdc_driver); 916 917 MODULE_AUTHOR("David Brownell"); 918 MODULE_DESCRIPTION("USB CDC Ethernet devices"); 919 MODULE_LICENSE("GPL"); 920