1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * CDC Ethernet based networking peripherals 4 * Copyright (C) 2003-2005 by David Brownell 5 * Copyright (C) 2006 by Ole Andre Vadla Ravnas (ActiveSync) 6 */ 7 8 // #define DEBUG // error path messages, extra info 9 // #define VERBOSE // more; success messages 10 11 #include <linux/module.h> 12 #include <linux/netdevice.h> 13 #include <linux/etherdevice.h> 14 #include <linux/ethtool.h> 15 #include <linux/workqueue.h> 16 #include <linux/mii.h> 17 #include <linux/usb.h> 18 #include <linux/usb/cdc.h> 19 #include <linux/usb/usbnet.h> 20 21 22 #if IS_ENABLED(CONFIG_USB_NET_RNDIS_HOST) 23 24 static int is_rndis(struct usb_interface_descriptor *desc) 25 { 26 return (desc->bInterfaceClass == USB_CLASS_COMM && 27 desc->bInterfaceSubClass == 2 && 28 desc->bInterfaceProtocol == 0xff); 29 } 30 31 static int is_activesync(struct usb_interface_descriptor *desc) 32 { 33 return (desc->bInterfaceClass == USB_CLASS_MISC && 34 desc->bInterfaceSubClass == 1 && 35 desc->bInterfaceProtocol == 1); 36 } 37 38 static int is_wireless_rndis(struct usb_interface_descriptor *desc) 39 { 40 return (desc->bInterfaceClass == USB_CLASS_WIRELESS_CONTROLLER && 41 desc->bInterfaceSubClass == 1 && 42 desc->bInterfaceProtocol == 3); 43 } 44 45 static int is_novatel_rndis(struct usb_interface_descriptor *desc) 46 { 47 return (desc->bInterfaceClass == USB_CLASS_MISC && 48 desc->bInterfaceSubClass == 4 && 49 desc->bInterfaceProtocol == 1); 50 } 51 52 #else 53 54 #define is_rndis(desc) 0 55 #define is_activesync(desc) 0 56 #define is_wireless_rndis(desc) 0 57 #define is_novatel_rndis(desc) 0 58 59 #endif 60 61 static const u8 mbm_guid[16] = { 62 0xa3, 0x17, 0xa8, 0x8b, 0x04, 0x5e, 0x4f, 0x01, 63 0xa6, 0x07, 0xc0, 0xff, 0xcb, 0x7e, 0x39, 0x2a, 64 }; 65 66 static void usbnet_cdc_update_filter(struct usbnet *dev) 67 { 68 struct cdc_state *info = (void *) &dev->data; 69 struct usb_interface *intf = info->control; 70 struct net_device *net = dev->net; 71 72 u16 cdc_filter = USB_CDC_PACKET_TYPE_DIRECTED 73 | USB_CDC_PACKET_TYPE_BROADCAST; 74 75 /* filtering on the device is an optional feature and not worth 76 * the hassle so we just roughly care about snooping and if any 77 * multicast is requested, we take every multicast 78 */ 79 if (net->flags & IFF_PROMISC) 80 cdc_filter |= USB_CDC_PACKET_TYPE_PROMISCUOUS; 81 if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI)) 82 cdc_filter |= USB_CDC_PACKET_TYPE_ALL_MULTICAST; 83 84 usb_control_msg(dev->udev, 85 usb_sndctrlpipe(dev->udev, 0), 86 USB_CDC_SET_ETHERNET_PACKET_FILTER, 87 USB_TYPE_CLASS | USB_RECIP_INTERFACE, 88 cdc_filter, 89 intf->cur_altsetting->desc.bInterfaceNumber, 90 NULL, 91 0, 92 USB_CTRL_SET_TIMEOUT 93 ); 94 } 95 96 /* probes control interface, claims data interface, collects the bulk 97 * endpoints, activates data interface (if needed), maybe sets MTU. 98 * all pure cdc, except for certain firmware workarounds, and knowing 99 * that rndis uses one different rule. 100 */ 101 int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf) 102 { 103 u8 *buf = intf->cur_altsetting->extra; 104 int len = intf->cur_altsetting->extralen; 105 struct usb_interface_descriptor *d; 106 struct cdc_state *info = (void *) &dev->data; 107 int status; 108 int rndis; 109 bool android_rndis_quirk = false; 110 struct usb_driver *driver = driver_of(intf); 111 struct usb_cdc_parsed_header header; 112 113 if (sizeof(dev->data) < sizeof(*info)) 114 return -EDOM; 115 116 /* expect strict spec conformance for the descriptors, but 117 * cope with firmware which stores them in the wrong place 118 */ 119 if (len == 0 && dev->udev->actconfig->extralen) { 120 /* Motorola SB4100 (and others: Brad Hards says it's 121 * from a Broadcom design) put CDC descriptors here 122 */ 123 buf = dev->udev->actconfig->extra; 124 len = dev->udev->actconfig->extralen; 125 dev_dbg(&intf->dev, "CDC descriptors on config\n"); 126 } 127 128 /* Maybe CDC descriptors are after the endpoint? This bug has 129 * been seen on some 2Wire Inc RNDIS-ish products. 130 */ 131 if (len == 0) { 132 struct usb_host_endpoint *hep; 133 134 hep = intf->cur_altsetting->endpoint; 135 if (hep) { 136 buf = hep->extra; 137 len = hep->extralen; 138 } 139 if (len) 140 dev_dbg(&intf->dev, 141 "CDC descriptors on endpoint\n"); 142 } 143 144 /* this assumes that if there's a non-RNDIS vendor variant 145 * of cdc-acm, it'll fail RNDIS requests cleanly. 146 */ 147 rndis = (is_rndis(&intf->cur_altsetting->desc) || 148 is_activesync(&intf->cur_altsetting->desc) || 149 is_wireless_rndis(&intf->cur_altsetting->desc) || 150 is_novatel_rndis(&intf->cur_altsetting->desc)); 151 152 memset(info, 0, sizeof(*info)); 153 info->control = intf; 154 155 cdc_parse_cdc_header(&header, intf, buf, len); 156 157 info->u = header.usb_cdc_union_desc; 158 info->header = header.usb_cdc_header_desc; 159 info->ether = header.usb_cdc_ether_desc; 160 if (!info->u) { 161 if (rndis) 162 goto skip; 163 else /* in that case a quirk is mandatory */ 164 goto bad_desc; 165 } 166 /* we need a master/control interface (what we're 167 * probed with) and a slave/data interface; union 168 * descriptors sort this all out. 169 */ 170 info->control = usb_ifnum_to_if(dev->udev, info->u->bMasterInterface0); 171 info->data = usb_ifnum_to_if(dev->udev, info->u->bSlaveInterface0); 172 if (!info->control || !info->data) { 173 dev_dbg(&intf->dev, 174 "master #%u/%p slave #%u/%p\n", 175 info->u->bMasterInterface0, 176 info->control, 177 info->u->bSlaveInterface0, 178 info->data); 179 /* fall back to hard-wiring for RNDIS */ 180 if (rndis) { 181 android_rndis_quirk = true; 182 goto skip; 183 } 184 goto bad_desc; 185 } 186 if (info->control != intf) { 187 dev_dbg(&intf->dev, "bogus CDC Union\n"); 188 /* Ambit USB Cable Modem (and maybe others) 189 * interchanges master and slave interface. 190 */ 191 if (info->data == intf) { 192 info->data = info->control; 193 info->control = intf; 194 } else 195 goto bad_desc; 196 } 197 198 /* some devices merge these - skip class check */ 199 if (info->control == info->data) 200 goto skip; 201 202 /* a data interface altsetting does the real i/o */ 203 d = &info->data->cur_altsetting->desc; 204 if (d->bInterfaceClass != USB_CLASS_CDC_DATA) { 205 dev_dbg(&intf->dev, "slave class %u\n", d->bInterfaceClass); 206 goto bad_desc; 207 } 208 skip: 209 if (rndis && header.usb_cdc_acm_descriptor && 210 header.usb_cdc_acm_descriptor->bmCapabilities) { 211 dev_dbg(&intf->dev, 212 "ACM capabilities %02x, not really RNDIS?\n", 213 header.usb_cdc_acm_descriptor->bmCapabilities); 214 goto bad_desc; 215 } 216 217 if (header.usb_cdc_ether_desc && info->ether->wMaxSegmentSize) { 218 dev->hard_mtu = le16_to_cpu(info->ether->wMaxSegmentSize); 219 /* because of Zaurus, we may be ignoring the host 220 * side link address we were given. 221 */ 222 } 223 224 if (header.usb_cdc_mdlm_desc && 225 memcmp(header.usb_cdc_mdlm_desc->bGUID, mbm_guid, 16)) { 226 dev_dbg(&intf->dev, "GUID doesn't match\n"); 227 goto bad_desc; 228 } 229 230 if (header.usb_cdc_mdlm_detail_desc && 231 header.usb_cdc_mdlm_detail_desc->bLength < 232 (sizeof(struct usb_cdc_mdlm_detail_desc) + 1)) { 233 dev_dbg(&intf->dev, "Descriptor too short\n"); 234 goto bad_desc; 235 } 236 237 238 239 /* Microsoft ActiveSync based and some regular RNDIS devices lack the 240 * CDC descriptors, so we'll hard-wire the interfaces and not check 241 * for descriptors. 242 * 243 * Some Android RNDIS devices have a CDC Union descriptor pointing 244 * to non-existing interfaces. Ignore that and attempt the same 245 * hard-wired 0 and 1 interfaces. 246 */ 247 if (rndis && (!info->u || android_rndis_quirk)) { 248 info->control = usb_ifnum_to_if(dev->udev, 0); 249 info->data = usb_ifnum_to_if(dev->udev, 1); 250 if (!info->control || !info->data || info->control != intf) { 251 dev_dbg(&intf->dev, 252 "rndis: master #0/%p slave #1/%p\n", 253 info->control, 254 info->data); 255 goto bad_desc; 256 } 257 258 } else if (!info->header || (!rndis && !info->ether)) { 259 dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n", 260 info->header ? "" : "header ", 261 info->u ? "" : "union ", 262 info->ether ? "" : "ether "); 263 goto bad_desc; 264 } 265 266 /* claim data interface and set it up ... with side effects. 267 * network traffic can't flow until an altsetting is enabled. 268 */ 269 if (info->data != info->control) { 270 status = usb_driver_claim_interface(driver, info->data, dev); 271 if (status < 0) 272 return status; 273 } 274 status = usbnet_get_endpoints(dev, info->data); 275 if (status < 0) { 276 /* ensure immediate exit from usbnet_disconnect */ 277 usb_set_intfdata(info->data, NULL); 278 if (info->data != info->control) 279 usb_driver_release_interface(driver, info->data); 280 return status; 281 } 282 283 /* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */ 284 if (info->data != info->control) 285 dev->status = NULL; 286 if (info->control->cur_altsetting->desc.bNumEndpoints == 1) { 287 struct usb_endpoint_descriptor *desc; 288 289 dev->status = &info->control->cur_altsetting->endpoint[0]; 290 desc = &dev->status->desc; 291 if (!usb_endpoint_is_int_in(desc) || 292 (le16_to_cpu(desc->wMaxPacketSize) 293 < sizeof(struct usb_cdc_notification)) || 294 !desc->bInterval) { 295 dev_dbg(&intf->dev, "bad notification endpoint\n"); 296 dev->status = NULL; 297 } 298 } 299 if (rndis && !dev->status) { 300 dev_dbg(&intf->dev, "missing RNDIS status endpoint\n"); 301 usb_set_intfdata(info->data, NULL); 302 usb_driver_release_interface(driver, info->data); 303 return -ENODEV; 304 } 305 306 return 0; 307 308 bad_desc: 309 dev_info(&dev->udev->dev, "bad CDC descriptors\n"); 310 return -ENODEV; 311 } 312 EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind); 313 314 315 /* like usbnet_generic_cdc_bind() but handles filter initialization 316 * correctly 317 */ 318 int usbnet_ether_cdc_bind(struct usbnet *dev, struct usb_interface *intf) 319 { 320 int rv; 321 322 rv = usbnet_generic_cdc_bind(dev, intf); 323 if (rv < 0) 324 goto bail_out; 325 326 /* Some devices don't initialise properly. In particular 327 * the packet filter is not reset. There are devices that 328 * don't do reset all the way. So the packet filter should 329 * be set to a sane initial value. 330 */ 331 usbnet_cdc_update_filter(dev); 332 333 bail_out: 334 return rv; 335 } 336 EXPORT_SYMBOL_GPL(usbnet_ether_cdc_bind); 337 338 void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf) 339 { 340 struct cdc_state *info = (void *) &dev->data; 341 struct usb_driver *driver = driver_of(intf); 342 343 /* combined interface - nothing to do */ 344 if (info->data == info->control) 345 return; 346 347 /* disconnect master --> disconnect slave */ 348 if (intf == info->control && info->data) { 349 /* ensure immediate exit from usbnet_disconnect */ 350 usb_set_intfdata(info->data, NULL); 351 usb_driver_release_interface(driver, info->data); 352 info->data = NULL; 353 } 354 355 /* and vice versa (just in case) */ 356 else if (intf == info->data && info->control) { 357 /* ensure immediate exit from usbnet_disconnect */ 358 usb_set_intfdata(info->control, NULL); 359 usb_driver_release_interface(driver, info->control); 360 info->control = NULL; 361 } 362 } 363 EXPORT_SYMBOL_GPL(usbnet_cdc_unbind); 364 365 /* Communications Device Class, Ethernet Control model 366 * 367 * Takes two interfaces. The DATA interface is inactive till an altsetting 368 * is selected. Configuration data includes class descriptors. There's 369 * an optional status endpoint on the control interface. 370 * 371 * This should interop with whatever the 2.4 "CDCEther.c" driver 372 * (by Brad Hards) talked with, with more functionality. 373 */ 374 375 static void dumpspeed(struct usbnet *dev, __le32 *speeds) 376 { 377 netif_info(dev, timer, dev->net, 378 "link speeds: %u kbps up, %u kbps down\n", 379 __le32_to_cpu(speeds[0]) / 1000, 380 __le32_to_cpu(speeds[1]) / 1000); 381 } 382 383 void usbnet_cdc_status(struct usbnet *dev, struct urb *urb) 384 { 385 struct usb_cdc_notification *event; 386 387 if (urb->actual_length < sizeof(*event)) 388 return; 389 390 /* SPEED_CHANGE can get split into two 8-byte packets */ 391 if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) { 392 dumpspeed(dev, (__le32 *) urb->transfer_buffer); 393 return; 394 } 395 396 event = urb->transfer_buffer; 397 switch (event->bNotificationType) { 398 case USB_CDC_NOTIFY_NETWORK_CONNECTION: 399 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n", 400 event->wValue ? "on" : "off"); 401 usbnet_link_change(dev, !!event->wValue, 0); 402 break; 403 case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */ 404 netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n", 405 urb->actual_length); 406 if (urb->actual_length != (sizeof(*event) + 8)) 407 set_bit(EVENT_STS_SPLIT, &dev->flags); 408 else 409 dumpspeed(dev, (__le32 *) &event[1]); 410 break; 411 /* USB_CDC_NOTIFY_RESPONSE_AVAILABLE can happen too (e.g. RNDIS), 412 * but there are no standard formats for the response data. 413 */ 414 default: 415 netdev_err(dev->net, "CDC: unexpected notification %02x!\n", 416 event->bNotificationType); 417 break; 418 } 419 } 420 EXPORT_SYMBOL_GPL(usbnet_cdc_status); 421 422 int usbnet_cdc_bind(struct usbnet *dev, struct usb_interface *intf) 423 { 424 int status; 425 struct cdc_state *info = (void *) &dev->data; 426 427 BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) 428 < sizeof(struct cdc_state))); 429 430 status = usbnet_ether_cdc_bind(dev, intf); 431 if (status < 0) 432 return status; 433 434 status = usbnet_get_ethernet_addr(dev, info->ether->iMACAddress); 435 if (status < 0) { 436 usb_set_intfdata(info->data, NULL); 437 usb_driver_release_interface(driver_of(intf), info->data); 438 return status; 439 } 440 441 return 0; 442 } 443 EXPORT_SYMBOL_GPL(usbnet_cdc_bind); 444 445 static int usbnet_cdc_zte_bind(struct usbnet *dev, struct usb_interface *intf) 446 { 447 int status = usbnet_cdc_bind(dev, intf); 448 449 if (!status && (dev->net->dev_addr[0] & 0x02)) 450 eth_hw_addr_random(dev->net); 451 452 return status; 453 } 454 455 /* Make sure packets have correct destination MAC address 456 * 457 * A firmware bug observed on some devices (ZTE MF823/831/910) is that the 458 * device sends packets with a static, bogus, random MAC address (event if 459 * device MAC address has been updated). Always set MAC address to that of the 460 * device. 461 */ 462 static int usbnet_cdc_zte_rx_fixup(struct usbnet *dev, struct sk_buff *skb) 463 { 464 if (skb->len < ETH_HLEN || !(skb->data[0] & 0x02)) 465 return 1; 466 467 skb_reset_mac_header(skb); 468 ether_addr_copy(eth_hdr(skb)->h_dest, dev->net->dev_addr); 469 470 return 1; 471 } 472 473 /* Ensure correct link state 474 * 475 * Some devices (ZTE MF823/831/910) export two carrier on notifications when 476 * connected. This causes the link state to be incorrect. Work around this by 477 * always setting the state to off, then on. 478 */ 479 static void usbnet_cdc_zte_status(struct usbnet *dev, struct urb *urb) 480 { 481 struct usb_cdc_notification *event; 482 483 if (urb->actual_length < sizeof(*event)) 484 return; 485 486 event = urb->transfer_buffer; 487 488 if (event->bNotificationType != USB_CDC_NOTIFY_NETWORK_CONNECTION) { 489 usbnet_cdc_status(dev, urb); 490 return; 491 } 492 493 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n", 494 event->wValue ? "on" : "off"); 495 496 if (event->wValue && 497 netif_carrier_ok(dev->net)) 498 netif_carrier_off(dev->net); 499 500 usbnet_link_change(dev, !!event->wValue, 0); 501 } 502 503 static const struct driver_info cdc_info = { 504 .description = "CDC Ethernet Device", 505 .flags = FLAG_ETHER | FLAG_POINTTOPOINT, 506 .bind = usbnet_cdc_bind, 507 .unbind = usbnet_cdc_unbind, 508 .status = usbnet_cdc_status, 509 .set_rx_mode = usbnet_cdc_update_filter, 510 .manage_power = usbnet_manage_power, 511 }; 512 513 static const struct driver_info zte_cdc_info = { 514 .description = "ZTE CDC Ethernet Device", 515 .flags = FLAG_ETHER | FLAG_POINTTOPOINT, 516 .bind = usbnet_cdc_zte_bind, 517 .unbind = usbnet_cdc_unbind, 518 .status = usbnet_cdc_zte_status, 519 .set_rx_mode = usbnet_cdc_update_filter, 520 .manage_power = usbnet_manage_power, 521 .rx_fixup = usbnet_cdc_zte_rx_fixup, 522 }; 523 524 static const struct driver_info wwan_info = { 525 .description = "Mobile Broadband Network Device", 526 .flags = FLAG_WWAN, 527 .bind = usbnet_cdc_bind, 528 .unbind = usbnet_cdc_unbind, 529 .status = usbnet_cdc_status, 530 .set_rx_mode = usbnet_cdc_update_filter, 531 .manage_power = usbnet_manage_power, 532 }; 533 534 /*-------------------------------------------------------------------------*/ 535 536 #define HUAWEI_VENDOR_ID 0x12D1 537 #define NOVATEL_VENDOR_ID 0x1410 538 #define ZTE_VENDOR_ID 0x19D2 539 #define DELL_VENDOR_ID 0x413C 540 #define REALTEK_VENDOR_ID 0x0bda 541 #define SAMSUNG_VENDOR_ID 0x04e8 542 #define LENOVO_VENDOR_ID 0x17ef 543 #define LINKSYS_VENDOR_ID 0x13b1 544 #define NVIDIA_VENDOR_ID 0x0955 545 #define HP_VENDOR_ID 0x03f0 546 #define MICROSOFT_VENDOR_ID 0x045e 547 #define UBLOX_VENDOR_ID 0x1546 548 #define TPLINK_VENDOR_ID 0x2357 549 #define AQUANTIA_VENDOR_ID 0x2eca 550 #define ASIX_VENDOR_ID 0x0b95 551 552 static const struct usb_device_id products[] = { 553 /* BLACKLIST !! 554 * 555 * First blacklist any products that are egregiously nonconformant 556 * with the CDC Ethernet specs. Minor braindamage we cope with; when 557 * they're not even trying, needing a separate driver is only the first 558 * of the differences to show up. 559 */ 560 561 #define ZAURUS_MASTER_INTERFACE \ 562 .bInterfaceClass = USB_CLASS_COMM, \ 563 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \ 564 .bInterfaceProtocol = USB_CDC_PROTO_NONE 565 566 /* SA-1100 based Sharp Zaurus ("collie"), or compatible; 567 * wire-incompatible with true CDC Ethernet implementations. 568 * (And, it seems, needlessly so...) 569 */ 570 { 571 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 572 | USB_DEVICE_ID_MATCH_DEVICE, 573 .idVendor = 0x04DD, 574 .idProduct = 0x8004, 575 ZAURUS_MASTER_INTERFACE, 576 .driver_info = 0, 577 }, 578 579 /* PXA-25x based Sharp Zaurii. Note that it seems some of these 580 * (later models especially) may have shipped only with firmware 581 * advertising false "CDC MDLM" compatibility ... but we're not 582 * clear which models did that, so for now let's assume the worst. 583 */ 584 { 585 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 586 | USB_DEVICE_ID_MATCH_DEVICE, 587 .idVendor = 0x04DD, 588 .idProduct = 0x8005, /* A-300 */ 589 ZAURUS_MASTER_INTERFACE, 590 .driver_info = 0, 591 }, { 592 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 593 | USB_DEVICE_ID_MATCH_DEVICE, 594 .idVendor = 0x04DD, 595 .idProduct = 0x8006, /* B-500/SL-5600 */ 596 ZAURUS_MASTER_INTERFACE, 597 .driver_info = 0, 598 }, { 599 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 600 | USB_DEVICE_ID_MATCH_DEVICE, 601 .idVendor = 0x04DD, 602 .idProduct = 0x8007, /* C-700 */ 603 ZAURUS_MASTER_INTERFACE, 604 .driver_info = 0, 605 }, { 606 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 607 | USB_DEVICE_ID_MATCH_DEVICE, 608 .idVendor = 0x04DD, 609 .idProduct = 0x9031, /* C-750 C-760 */ 610 ZAURUS_MASTER_INTERFACE, 611 .driver_info = 0, 612 }, { 613 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 614 | USB_DEVICE_ID_MATCH_DEVICE, 615 .idVendor = 0x04DD, 616 .idProduct = 0x9032, /* SL-6000 */ 617 ZAURUS_MASTER_INTERFACE, 618 .driver_info = 0, 619 }, { 620 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 621 | USB_DEVICE_ID_MATCH_DEVICE, 622 .idVendor = 0x04DD, 623 /* reported with some C860 units */ 624 .idProduct = 0x9050, /* C-860 */ 625 ZAURUS_MASTER_INTERFACE, 626 .driver_info = 0, 627 }, 628 629 /* Olympus has some models with a Zaurus-compatible option. 630 * R-1000 uses a FreeScale i.MXL cpu (ARMv4T) 631 */ 632 { 633 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 634 | USB_DEVICE_ID_MATCH_DEVICE, 635 .idVendor = 0x07B4, 636 .idProduct = 0x0F02, /* R-1000 */ 637 ZAURUS_MASTER_INTERFACE, 638 .driver_info = 0, 639 }, 640 641 /* LG Electronics VL600 wants additional headers on every frame */ 642 { 643 USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM, 644 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 645 .driver_info = 0, 646 }, 647 648 /* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */ 649 { 650 USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM, 651 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), 652 .driver_info = 0, 653 }, 654 655 /* Novatel USB551L and MC551 - handled by qmi_wwan */ 656 { 657 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0xB001, USB_CLASS_COMM, 658 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 659 .driver_info = 0, 660 }, 661 662 /* Novatel E362 - handled by qmi_wwan */ 663 { 664 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9010, USB_CLASS_COMM, 665 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 666 .driver_info = 0, 667 }, 668 669 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */ 670 { 671 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8195, USB_CLASS_COMM, 672 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 673 .driver_info = 0, 674 }, 675 676 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */ 677 { 678 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8196, USB_CLASS_COMM, 679 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 680 .driver_info = 0, 681 }, 682 683 /* Dell Wireless 5804 (Novatel E371) - handled by qmi_wwan */ 684 { 685 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x819b, USB_CLASS_COMM, 686 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 687 .driver_info = 0, 688 }, 689 690 /* Novatel Expedite E371 - handled by qmi_wwan */ 691 { 692 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9011, USB_CLASS_COMM, 693 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 694 .driver_info = 0, 695 }, 696 697 /* HP lt2523 (Novatel E371) - handled by qmi_wwan */ 698 { 699 USB_DEVICE_AND_INTERFACE_INFO(HP_VENDOR_ID, 0x421d, USB_CLASS_COMM, 700 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 701 .driver_info = 0, 702 }, 703 704 /* AnyDATA ADU960S - handled by qmi_wwan */ 705 { 706 USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, USB_CLASS_COMM, 707 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 708 .driver_info = 0, 709 }, 710 711 /* Huawei E1820 - handled by qmi_wwan */ 712 { 713 USB_DEVICE_INTERFACE_NUMBER(HUAWEI_VENDOR_ID, 0x14ac, 1), 714 .driver_info = 0, 715 }, 716 717 /* Realtek RTL8152 Based USB 2.0 Ethernet Adapters */ 718 { 719 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8152, USB_CLASS_COMM, 720 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 721 .driver_info = 0, 722 }, 723 724 /* Realtek RTL8153 Based USB 3.0 Ethernet Adapters */ 725 { 726 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8153, USB_CLASS_COMM, 727 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 728 .driver_info = 0, 729 }, 730 731 /* Samsung USB Ethernet Adapters */ 732 { 733 USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, 0xa101, USB_CLASS_COMM, 734 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 735 .driver_info = 0, 736 }, 737 738 #if IS_ENABLED(CONFIG_USB_RTL8152) 739 /* Linksys USB3GIGV1 Ethernet Adapter */ 740 { 741 USB_DEVICE_AND_INTERFACE_INFO(LINKSYS_VENDOR_ID, 0x0041, USB_CLASS_COMM, 742 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 743 .driver_info = 0, 744 }, 745 #endif 746 747 /* ThinkPad USB-C Dock (based on Realtek RTL8153) */ 748 { 749 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3062, USB_CLASS_COMM, 750 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 751 .driver_info = 0, 752 }, 753 754 /* ThinkPad Thunderbolt 3 Dock (based on Realtek RTL8153) */ 755 { 756 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3069, USB_CLASS_COMM, 757 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 758 .driver_info = 0, 759 }, 760 761 /* Lenovo Thinkpad USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */ 762 { 763 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7205, USB_CLASS_COMM, 764 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 765 .driver_info = 0, 766 }, 767 768 /* Lenovo USB C to Ethernet Adapter (based on Realtek RTL8153) */ 769 { 770 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x720c, USB_CLASS_COMM, 771 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 772 .driver_info = 0, 773 }, 774 775 /* Lenovo USB-C Travel Hub (based on Realtek RTL8153) */ 776 { 777 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7214, USB_CLASS_COMM, 778 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 779 .driver_info = 0, 780 }, 781 782 /* NVIDIA Tegra USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */ 783 { 784 USB_DEVICE_AND_INTERFACE_INFO(NVIDIA_VENDOR_ID, 0x09ff, USB_CLASS_COMM, 785 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 786 .driver_info = 0, 787 }, 788 789 /* Microsoft Surface 2 dock (based on Realtek RTL8152) */ 790 { 791 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07ab, USB_CLASS_COMM, 792 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 793 .driver_info = 0, 794 }, 795 796 /* Microsoft Surface 3 dock (based on Realtek RTL8153) */ 797 { 798 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07c6, USB_CLASS_COMM, 799 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 800 .driver_info = 0, 801 }, 802 803 /* TP-LINK UE300 USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */ 804 { 805 USB_DEVICE_AND_INTERFACE_INFO(TPLINK_VENDOR_ID, 0x0601, USB_CLASS_COMM, 806 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 807 .driver_info = 0, 808 }, 809 810 /* Aquantia AQtion USB to 5GbE Controller (based on AQC111U) */ 811 { 812 USB_DEVICE_AND_INTERFACE_INFO(AQUANTIA_VENDOR_ID, 0xc101, 813 USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, 814 USB_CDC_PROTO_NONE), 815 .driver_info = 0, 816 }, 817 818 /* ASIX USB 3.1 Gen1 to 5G Multi-Gigabit Ethernet Adapter(based on AQC111U) */ 819 { 820 USB_DEVICE_AND_INTERFACE_INFO(ASIX_VENDOR_ID, 0x2790, USB_CLASS_COMM, 821 USB_CDC_SUBCLASS_ETHERNET, 822 USB_CDC_PROTO_NONE), 823 .driver_info = 0, 824 }, 825 826 /* ASIX USB 3.1 Gen1 to 2.5G Multi-Gigabit Ethernet Adapter(based on AQC112U) */ 827 { 828 USB_DEVICE_AND_INTERFACE_INFO(ASIX_VENDOR_ID, 0x2791, USB_CLASS_COMM, 829 USB_CDC_SUBCLASS_ETHERNET, 830 USB_CDC_PROTO_NONE), 831 .driver_info = 0, 832 }, 833 834 /* USB-C 3.1 to 5GBASE-T Ethernet Adapter (based on AQC111U) */ 835 { 836 USB_DEVICE_AND_INTERFACE_INFO(0x20f4, 0xe05a, USB_CLASS_COMM, 837 USB_CDC_SUBCLASS_ETHERNET, 838 USB_CDC_PROTO_NONE), 839 .driver_info = 0, 840 }, 841 842 /* QNAP QNA-UC5G1T USB to 5GbE Adapter (based on AQC111U) */ 843 { 844 USB_DEVICE_AND_INTERFACE_INFO(0x1c04, 0x0015, USB_CLASS_COMM, 845 USB_CDC_SUBCLASS_ETHERNET, 846 USB_CDC_PROTO_NONE), 847 .driver_info = 0, 848 }, 849 850 /* WHITELIST!!! 851 * 852 * CDC Ether uses two interfaces, not necessarily consecutive. 853 * We match the main interface, ignoring the optional device 854 * class so we could handle devices that aren't exclusively 855 * CDC ether. 856 * 857 * NOTE: this match must come AFTER entries blacklisting devices 858 * because of bugs/quirks in a given product (like Zaurus, above). 859 */ 860 { 861 /* ZTE (Vodafone) K3805-Z */ 862 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1003, USB_CLASS_COMM, 863 USB_CDC_SUBCLASS_ETHERNET, 864 USB_CDC_PROTO_NONE), 865 .driver_info = (unsigned long)&wwan_info, 866 }, { 867 /* ZTE (Vodafone) K3806-Z */ 868 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1015, USB_CLASS_COMM, 869 USB_CDC_SUBCLASS_ETHERNET, 870 USB_CDC_PROTO_NONE), 871 .driver_info = (unsigned long)&wwan_info, 872 }, { 873 /* ZTE (Vodafone) K4510-Z */ 874 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1173, USB_CLASS_COMM, 875 USB_CDC_SUBCLASS_ETHERNET, 876 USB_CDC_PROTO_NONE), 877 .driver_info = (unsigned long)&wwan_info, 878 }, { 879 /* ZTE (Vodafone) K3770-Z */ 880 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1177, USB_CLASS_COMM, 881 USB_CDC_SUBCLASS_ETHERNET, 882 USB_CDC_PROTO_NONE), 883 .driver_info = (unsigned long)&wwan_info, 884 }, { 885 /* ZTE (Vodafone) K3772-Z */ 886 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1181, USB_CLASS_COMM, 887 USB_CDC_SUBCLASS_ETHERNET, 888 USB_CDC_PROTO_NONE), 889 .driver_info = (unsigned long)&wwan_info, 890 }, { 891 /* Telit modules */ 892 USB_VENDOR_AND_INTERFACE_INFO(0x1bc7, USB_CLASS_COMM, 893 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 894 .driver_info = (kernel_ulong_t) &wwan_info, 895 }, { 896 /* Dell DW5580 modules */ 897 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x81ba, USB_CLASS_COMM, 898 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 899 .driver_info = (kernel_ulong_t)&wwan_info, 900 }, { 901 /* Huawei ME906 and ME909 */ 902 USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0x15c1, USB_CLASS_COMM, 903 USB_CDC_SUBCLASS_ETHERNET, 904 USB_CDC_PROTO_NONE), 905 .driver_info = (unsigned long)&wwan_info, 906 }, { 907 /* ZTE modules */ 908 USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, USB_CLASS_COMM, 909 USB_CDC_SUBCLASS_ETHERNET, 910 USB_CDC_PROTO_NONE), 911 .driver_info = (unsigned long)&zte_cdc_info, 912 }, { 913 /* U-blox TOBY-L2 */ 914 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1143, USB_CLASS_COMM, 915 USB_CDC_SUBCLASS_ETHERNET, 916 USB_CDC_PROTO_NONE), 917 .driver_info = (unsigned long)&wwan_info, 918 }, { 919 /* U-blox SARA-U2 */ 920 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1104, USB_CLASS_COMM, 921 USB_CDC_SUBCLASS_ETHERNET, 922 USB_CDC_PROTO_NONE), 923 .driver_info = (unsigned long)&wwan_info, 924 }, { 925 /* Cinterion PLS8 modem by GEMALTO */ 926 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0061, USB_CLASS_COMM, 927 USB_CDC_SUBCLASS_ETHERNET, 928 USB_CDC_PROTO_NONE), 929 .driver_info = (unsigned long)&wwan_info, 930 }, { 931 /* Cinterion AHS3 modem by GEMALTO */ 932 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0055, USB_CLASS_COMM, 933 USB_CDC_SUBCLASS_ETHERNET, 934 USB_CDC_PROTO_NONE), 935 .driver_info = (unsigned long)&wwan_info, 936 }, { 937 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, 938 USB_CDC_PROTO_NONE), 939 .driver_info = (unsigned long) &cdc_info, 940 }, { 941 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM, 942 USB_CDC_PROTO_NONE), 943 .driver_info = (unsigned long)&wwan_info, 944 945 }, { 946 /* Various Huawei modems with a network port like the UMG1831 */ 947 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_COMM, 948 USB_CDC_SUBCLASS_ETHERNET, 255), 949 .driver_info = (unsigned long)&wwan_info, 950 }, 951 { }, /* END */ 952 }; 953 MODULE_DEVICE_TABLE(usb, products); 954 955 static struct usb_driver cdc_driver = { 956 .name = "cdc_ether", 957 .id_table = products, 958 .probe = usbnet_probe, 959 .disconnect = usbnet_disconnect, 960 .suspend = usbnet_suspend, 961 .resume = usbnet_resume, 962 .reset_resume = usbnet_resume, 963 .supports_autosuspend = 1, 964 .disable_hub_initiated_lpm = 1, 965 }; 966 967 module_usb_driver(cdc_driver); 968 969 MODULE_AUTHOR("David Brownell"); 970 MODULE_DESCRIPTION("USB CDC Ethernet devices"); 971 MODULE_LICENSE("GPL"); 972