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 /* Communcation class functions with bmCapabilities are not 210 * RNDIS. But some Wireless class RNDIS functions use 211 * bmCapabilities for their own purpose. The failsafe is 212 * therefore applied only to Communication class RNDIS 213 * functions. The rndis test is redundant, but a cheap 214 * optimization. 215 */ 216 if (rndis && is_rndis(&intf->cur_altsetting->desc) && 217 header.usb_cdc_acm_descriptor && 218 header.usb_cdc_acm_descriptor->bmCapabilities) { 219 dev_dbg(&intf->dev, 220 "ACM capabilities %02x, not really RNDIS?\n", 221 header.usb_cdc_acm_descriptor->bmCapabilities); 222 goto bad_desc; 223 } 224 225 if (header.usb_cdc_ether_desc && info->ether->wMaxSegmentSize) { 226 dev->hard_mtu = le16_to_cpu(info->ether->wMaxSegmentSize); 227 /* because of Zaurus, we may be ignoring the host 228 * side link address we were given. 229 */ 230 } 231 232 if (header.usb_cdc_mdlm_desc && 233 memcmp(header.usb_cdc_mdlm_desc->bGUID, mbm_guid, 16)) { 234 dev_dbg(&intf->dev, "GUID doesn't match\n"); 235 goto bad_desc; 236 } 237 238 if (header.usb_cdc_mdlm_detail_desc && 239 header.usb_cdc_mdlm_detail_desc->bLength < 240 (sizeof(struct usb_cdc_mdlm_detail_desc) + 1)) { 241 dev_dbg(&intf->dev, "Descriptor too short\n"); 242 goto bad_desc; 243 } 244 245 246 247 /* Microsoft ActiveSync based and some regular RNDIS devices lack the 248 * CDC descriptors, so we'll hard-wire the interfaces and not check 249 * for descriptors. 250 * 251 * Some Android RNDIS devices have a CDC Union descriptor pointing 252 * to non-existing interfaces. Ignore that and attempt the same 253 * hard-wired 0 and 1 interfaces. 254 */ 255 if (rndis && (!info->u || android_rndis_quirk)) { 256 info->control = usb_ifnum_to_if(dev->udev, 0); 257 info->data = usb_ifnum_to_if(dev->udev, 1); 258 if (!info->control || !info->data || info->control != intf) { 259 dev_dbg(&intf->dev, 260 "rndis: master #0/%p slave #1/%p\n", 261 info->control, 262 info->data); 263 goto bad_desc; 264 } 265 266 } else if (!info->header || (!rndis && !info->ether)) { 267 dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n", 268 info->header ? "" : "header ", 269 info->u ? "" : "union ", 270 info->ether ? "" : "ether "); 271 goto bad_desc; 272 } 273 274 /* claim data interface and set it up ... with side effects. 275 * network traffic can't flow until an altsetting is enabled. 276 */ 277 if (info->data != info->control) { 278 status = usb_driver_claim_interface(driver, info->data, dev); 279 if (status < 0) 280 return status; 281 } 282 status = usbnet_get_endpoints(dev, info->data); 283 if (status < 0) { 284 /* ensure immediate exit from usbnet_disconnect */ 285 usb_set_intfdata(info->data, NULL); 286 if (info->data != info->control) 287 usb_driver_release_interface(driver, info->data); 288 return status; 289 } 290 291 /* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */ 292 if (info->data != info->control) 293 dev->status = NULL; 294 if (info->control->cur_altsetting->desc.bNumEndpoints == 1) { 295 struct usb_endpoint_descriptor *desc; 296 297 dev->status = &info->control->cur_altsetting->endpoint[0]; 298 desc = &dev->status->desc; 299 if (!usb_endpoint_is_int_in(desc) || 300 (le16_to_cpu(desc->wMaxPacketSize) 301 < sizeof(struct usb_cdc_notification)) || 302 !desc->bInterval) { 303 dev_dbg(&intf->dev, "bad notification endpoint\n"); 304 dev->status = NULL; 305 } 306 } 307 if (rndis && !dev->status) { 308 dev_dbg(&intf->dev, "missing RNDIS status endpoint\n"); 309 usb_set_intfdata(info->data, NULL); 310 usb_driver_release_interface(driver, info->data); 311 return -ENODEV; 312 } 313 314 return 0; 315 316 bad_desc: 317 dev_info(&dev->udev->dev, "bad CDC descriptors\n"); 318 return -ENODEV; 319 } 320 EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind); 321 322 323 /* like usbnet_generic_cdc_bind() but handles filter initialization 324 * correctly 325 */ 326 int usbnet_ether_cdc_bind(struct usbnet *dev, struct usb_interface *intf) 327 { 328 int rv; 329 330 rv = usbnet_generic_cdc_bind(dev, intf); 331 if (rv < 0) 332 goto bail_out; 333 334 /* Some devices don't initialise properly. In particular 335 * the packet filter is not reset. There are devices that 336 * don't do reset all the way. So the packet filter should 337 * be set to a sane initial value. 338 */ 339 usbnet_cdc_update_filter(dev); 340 341 bail_out: 342 return rv; 343 } 344 EXPORT_SYMBOL_GPL(usbnet_ether_cdc_bind); 345 346 void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf) 347 { 348 struct cdc_state *info = (void *) &dev->data; 349 struct usb_driver *driver = driver_of(intf); 350 351 /* combined interface - nothing to do */ 352 if (info->data == info->control) 353 return; 354 355 /* disconnect master --> disconnect slave */ 356 if (intf == info->control && info->data) { 357 /* ensure immediate exit from usbnet_disconnect */ 358 usb_set_intfdata(info->data, NULL); 359 usb_driver_release_interface(driver, info->data); 360 info->data = NULL; 361 } 362 363 /* and vice versa (just in case) */ 364 else if (intf == info->data && info->control) { 365 /* ensure immediate exit from usbnet_disconnect */ 366 usb_set_intfdata(info->control, NULL); 367 usb_driver_release_interface(driver, info->control); 368 info->control = NULL; 369 } 370 } 371 EXPORT_SYMBOL_GPL(usbnet_cdc_unbind); 372 373 /* Communications Device Class, Ethernet Control model 374 * 375 * Takes two interfaces. The DATA interface is inactive till an altsetting 376 * is selected. Configuration data includes class descriptors. There's 377 * an optional status endpoint on the control interface. 378 * 379 * This should interop with whatever the 2.4 "CDCEther.c" driver 380 * (by Brad Hards) talked with, with more functionality. 381 */ 382 383 static void dumpspeed(struct usbnet *dev, __le32 *speeds) 384 { 385 netif_info(dev, timer, dev->net, 386 "link speeds: %u kbps up, %u kbps down\n", 387 __le32_to_cpu(speeds[0]) / 1000, 388 __le32_to_cpu(speeds[1]) / 1000); 389 } 390 391 void usbnet_cdc_status(struct usbnet *dev, struct urb *urb) 392 { 393 struct usb_cdc_notification *event; 394 395 if (urb->actual_length < sizeof(*event)) 396 return; 397 398 /* SPEED_CHANGE can get split into two 8-byte packets */ 399 if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) { 400 dumpspeed(dev, (__le32 *) urb->transfer_buffer); 401 return; 402 } 403 404 event = urb->transfer_buffer; 405 switch (event->bNotificationType) { 406 case USB_CDC_NOTIFY_NETWORK_CONNECTION: 407 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n", 408 event->wValue ? "on" : "off"); 409 usbnet_link_change(dev, !!event->wValue, 0); 410 break; 411 case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */ 412 netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n", 413 urb->actual_length); 414 if (urb->actual_length != (sizeof(*event) + 8)) 415 set_bit(EVENT_STS_SPLIT, &dev->flags); 416 else 417 dumpspeed(dev, (__le32 *) &event[1]); 418 break; 419 /* USB_CDC_NOTIFY_RESPONSE_AVAILABLE can happen too (e.g. RNDIS), 420 * but there are no standard formats for the response data. 421 */ 422 default: 423 netdev_err(dev->net, "CDC: unexpected notification %02x!\n", 424 event->bNotificationType); 425 break; 426 } 427 } 428 EXPORT_SYMBOL_GPL(usbnet_cdc_status); 429 430 int usbnet_cdc_bind(struct usbnet *dev, struct usb_interface *intf) 431 { 432 int status; 433 struct cdc_state *info = (void *) &dev->data; 434 435 BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) 436 < sizeof(struct cdc_state))); 437 438 status = usbnet_ether_cdc_bind(dev, intf); 439 if (status < 0) 440 return status; 441 442 status = usbnet_get_ethernet_addr(dev, info->ether->iMACAddress); 443 if (status < 0) { 444 usb_set_intfdata(info->data, NULL); 445 usb_driver_release_interface(driver_of(intf), info->data); 446 return status; 447 } 448 449 return 0; 450 } 451 EXPORT_SYMBOL_GPL(usbnet_cdc_bind); 452 453 static int usbnet_cdc_zte_bind(struct usbnet *dev, struct usb_interface *intf) 454 { 455 int status = usbnet_cdc_bind(dev, intf); 456 457 if (!status && (dev->net->dev_addr[0] & 0x02)) 458 eth_hw_addr_random(dev->net); 459 460 return status; 461 } 462 463 /* Make sure packets have correct destination MAC address 464 * 465 * A firmware bug observed on some devices (ZTE MF823/831/910) is that the 466 * device sends packets with a static, bogus, random MAC address (event if 467 * device MAC address has been updated). Always set MAC address to that of the 468 * device. 469 */ 470 static int usbnet_cdc_zte_rx_fixup(struct usbnet *dev, struct sk_buff *skb) 471 { 472 if (skb->len < ETH_HLEN || !(skb->data[0] & 0x02)) 473 return 1; 474 475 skb_reset_mac_header(skb); 476 ether_addr_copy(eth_hdr(skb)->h_dest, dev->net->dev_addr); 477 478 return 1; 479 } 480 481 /* Ensure correct link state 482 * 483 * Some devices (ZTE MF823/831/910) export two carrier on notifications when 484 * connected. This causes the link state to be incorrect. Work around this by 485 * always setting the state to off, then on. 486 */ 487 static void usbnet_cdc_zte_status(struct usbnet *dev, struct urb *urb) 488 { 489 struct usb_cdc_notification *event; 490 491 if (urb->actual_length < sizeof(*event)) 492 return; 493 494 event = urb->transfer_buffer; 495 496 if (event->bNotificationType != USB_CDC_NOTIFY_NETWORK_CONNECTION) { 497 usbnet_cdc_status(dev, urb); 498 return; 499 } 500 501 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n", 502 event->wValue ? "on" : "off"); 503 504 if (event->wValue && 505 netif_carrier_ok(dev->net)) 506 netif_carrier_off(dev->net); 507 508 usbnet_link_change(dev, !!event->wValue, 0); 509 } 510 511 static const struct driver_info cdc_info = { 512 .description = "CDC Ethernet Device", 513 .flags = FLAG_ETHER | FLAG_POINTTOPOINT, 514 .bind = usbnet_cdc_bind, 515 .unbind = usbnet_cdc_unbind, 516 .status = usbnet_cdc_status, 517 .set_rx_mode = usbnet_cdc_update_filter, 518 .manage_power = usbnet_manage_power, 519 }; 520 521 static const struct driver_info zte_cdc_info = { 522 .description = "ZTE CDC Ethernet Device", 523 .flags = FLAG_ETHER | FLAG_POINTTOPOINT, 524 .bind = usbnet_cdc_zte_bind, 525 .unbind = usbnet_cdc_unbind, 526 .status = usbnet_cdc_zte_status, 527 .set_rx_mode = usbnet_cdc_update_filter, 528 .manage_power = usbnet_manage_power, 529 .rx_fixup = usbnet_cdc_zte_rx_fixup, 530 }; 531 532 static const struct driver_info wwan_info = { 533 .description = "Mobile Broadband Network Device", 534 .flags = FLAG_WWAN, 535 .bind = usbnet_cdc_bind, 536 .unbind = usbnet_cdc_unbind, 537 .status = usbnet_cdc_status, 538 .set_rx_mode = usbnet_cdc_update_filter, 539 .manage_power = usbnet_manage_power, 540 }; 541 542 /*-------------------------------------------------------------------------*/ 543 544 #define HUAWEI_VENDOR_ID 0x12D1 545 #define NOVATEL_VENDOR_ID 0x1410 546 #define ZTE_VENDOR_ID 0x19D2 547 #define DELL_VENDOR_ID 0x413C 548 #define REALTEK_VENDOR_ID 0x0bda 549 #define SAMSUNG_VENDOR_ID 0x04e8 550 #define LENOVO_VENDOR_ID 0x17ef 551 #define LINKSYS_VENDOR_ID 0x13b1 552 #define NVIDIA_VENDOR_ID 0x0955 553 #define HP_VENDOR_ID 0x03f0 554 #define MICROSOFT_VENDOR_ID 0x045e 555 #define UBLOX_VENDOR_ID 0x1546 556 #define TPLINK_VENDOR_ID 0x2357 557 #define AQUANTIA_VENDOR_ID 0x2eca 558 #define ASIX_VENDOR_ID 0x0b95 559 560 static const struct usb_device_id products[] = { 561 /* BLACKLIST !! 562 * 563 * First blacklist any products that are egregiously nonconformant 564 * with the CDC Ethernet specs. Minor braindamage we cope with; when 565 * they're not even trying, needing a separate driver is only the first 566 * of the differences to show up. 567 */ 568 569 #define ZAURUS_MASTER_INTERFACE \ 570 .bInterfaceClass = USB_CLASS_COMM, \ 571 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \ 572 .bInterfaceProtocol = USB_CDC_PROTO_NONE 573 574 /* SA-1100 based Sharp Zaurus ("collie"), or compatible; 575 * wire-incompatible with true CDC Ethernet implementations. 576 * (And, it seems, needlessly so...) 577 */ 578 { 579 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 580 | USB_DEVICE_ID_MATCH_DEVICE, 581 .idVendor = 0x04DD, 582 .idProduct = 0x8004, 583 ZAURUS_MASTER_INTERFACE, 584 .driver_info = 0, 585 }, 586 587 /* PXA-25x based Sharp Zaurii. Note that it seems some of these 588 * (later models especially) may have shipped only with firmware 589 * advertising false "CDC MDLM" compatibility ... but we're not 590 * clear which models did that, so for now let's assume the worst. 591 */ 592 { 593 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 594 | USB_DEVICE_ID_MATCH_DEVICE, 595 .idVendor = 0x04DD, 596 .idProduct = 0x8005, /* A-300 */ 597 ZAURUS_MASTER_INTERFACE, 598 .driver_info = 0, 599 }, { 600 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 601 | USB_DEVICE_ID_MATCH_DEVICE, 602 .idVendor = 0x04DD, 603 .idProduct = 0x8006, /* B-500/SL-5600 */ 604 ZAURUS_MASTER_INTERFACE, 605 .driver_info = 0, 606 }, { 607 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 608 | USB_DEVICE_ID_MATCH_DEVICE, 609 .idVendor = 0x04DD, 610 .idProduct = 0x8007, /* C-700 */ 611 ZAURUS_MASTER_INTERFACE, 612 .driver_info = 0, 613 }, { 614 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 615 | USB_DEVICE_ID_MATCH_DEVICE, 616 .idVendor = 0x04DD, 617 .idProduct = 0x9031, /* C-750 C-760 */ 618 ZAURUS_MASTER_INTERFACE, 619 .driver_info = 0, 620 }, { 621 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 622 | USB_DEVICE_ID_MATCH_DEVICE, 623 .idVendor = 0x04DD, 624 .idProduct = 0x9032, /* SL-6000 */ 625 ZAURUS_MASTER_INTERFACE, 626 .driver_info = 0, 627 }, { 628 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 629 | USB_DEVICE_ID_MATCH_DEVICE, 630 .idVendor = 0x04DD, 631 /* reported with some C860 units */ 632 .idProduct = 0x9050, /* C-860 */ 633 ZAURUS_MASTER_INTERFACE, 634 .driver_info = 0, 635 }, 636 637 /* Olympus has some models with a Zaurus-compatible option. 638 * R-1000 uses a FreeScale i.MXL cpu (ARMv4T) 639 */ 640 { 641 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 642 | USB_DEVICE_ID_MATCH_DEVICE, 643 .idVendor = 0x07B4, 644 .idProduct = 0x0F02, /* R-1000 */ 645 ZAURUS_MASTER_INTERFACE, 646 .driver_info = 0, 647 }, 648 649 /* LG Electronics VL600 wants additional headers on every frame */ 650 { 651 USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM, 652 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 653 .driver_info = 0, 654 }, 655 656 /* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */ 657 { 658 USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM, 659 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), 660 .driver_info = 0, 661 }, 662 663 /* Novatel USB551L and MC551 - handled by qmi_wwan */ 664 { 665 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0xB001, USB_CLASS_COMM, 666 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 667 .driver_info = 0, 668 }, 669 670 /* Novatel E362 - handled by qmi_wwan */ 671 { 672 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9010, USB_CLASS_COMM, 673 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 674 .driver_info = 0, 675 }, 676 677 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */ 678 { 679 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8195, USB_CLASS_COMM, 680 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 681 .driver_info = 0, 682 }, 683 684 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */ 685 { 686 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8196, USB_CLASS_COMM, 687 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 688 .driver_info = 0, 689 }, 690 691 /* Dell Wireless 5804 (Novatel E371) - handled by qmi_wwan */ 692 { 693 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x819b, USB_CLASS_COMM, 694 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 695 .driver_info = 0, 696 }, 697 698 /* Novatel Expedite E371 - handled by qmi_wwan */ 699 { 700 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9011, USB_CLASS_COMM, 701 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 702 .driver_info = 0, 703 }, 704 705 /* HP lt2523 (Novatel E371) - handled by qmi_wwan */ 706 { 707 USB_DEVICE_AND_INTERFACE_INFO(HP_VENDOR_ID, 0x421d, USB_CLASS_COMM, 708 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 709 .driver_info = 0, 710 }, 711 712 /* AnyDATA ADU960S - handled by qmi_wwan */ 713 { 714 USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, USB_CLASS_COMM, 715 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 716 .driver_info = 0, 717 }, 718 719 /* Huawei E1820 - handled by qmi_wwan */ 720 { 721 USB_DEVICE_INTERFACE_NUMBER(HUAWEI_VENDOR_ID, 0x14ac, 1), 722 .driver_info = 0, 723 }, 724 725 /* Realtek RTL8152 Based USB 2.0 Ethernet Adapters */ 726 { 727 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8152, USB_CLASS_COMM, 728 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 729 .driver_info = 0, 730 }, 731 732 /* Realtek RTL8153 Based USB 3.0 Ethernet Adapters */ 733 { 734 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8153, USB_CLASS_COMM, 735 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 736 .driver_info = 0, 737 }, 738 739 /* Samsung USB Ethernet Adapters */ 740 { 741 USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, 0xa101, USB_CLASS_COMM, 742 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 743 .driver_info = 0, 744 }, 745 746 #if IS_ENABLED(CONFIG_USB_RTL8152) 747 /* Linksys USB3GIGV1 Ethernet Adapter */ 748 { 749 USB_DEVICE_AND_INTERFACE_INFO(LINKSYS_VENDOR_ID, 0x0041, USB_CLASS_COMM, 750 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 751 .driver_info = 0, 752 }, 753 #endif 754 755 /* ThinkPad USB-C Dock (based on Realtek RTL8153) */ 756 { 757 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3062, USB_CLASS_COMM, 758 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 759 .driver_info = 0, 760 }, 761 762 /* ThinkPad Thunderbolt 3 Dock (based on Realtek RTL8153) */ 763 { 764 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3069, USB_CLASS_COMM, 765 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 766 .driver_info = 0, 767 }, 768 769 /* ThinkPad Thunderbolt 3 Dock Gen 2 (based on Realtek RTL8153) */ 770 { 771 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3082, USB_CLASS_COMM, 772 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 773 .driver_info = 0, 774 }, 775 776 /* Lenovo Thinkpad USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */ 777 { 778 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7205, USB_CLASS_COMM, 779 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 780 .driver_info = 0, 781 }, 782 783 /* Lenovo USB C to Ethernet Adapter (based on Realtek RTL8153) */ 784 { 785 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x720c, USB_CLASS_COMM, 786 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 787 .driver_info = 0, 788 }, 789 790 /* Lenovo USB-C Travel Hub (based on Realtek RTL8153) */ 791 { 792 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7214, USB_CLASS_COMM, 793 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 794 .driver_info = 0, 795 }, 796 797 /* ThinkPad USB-C Dock Gen 2 (based on Realtek RTL8153) */ 798 { 799 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0xa387, USB_CLASS_COMM, 800 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 801 .driver_info = 0, 802 }, 803 804 /* NVIDIA Tegra USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */ 805 { 806 USB_DEVICE_AND_INTERFACE_INFO(NVIDIA_VENDOR_ID, 0x09ff, USB_CLASS_COMM, 807 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 808 .driver_info = 0, 809 }, 810 811 /* Microsoft Surface 2 dock (based on Realtek RTL8152) */ 812 { 813 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07ab, USB_CLASS_COMM, 814 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 815 .driver_info = 0, 816 }, 817 818 /* Microsoft Surface Ethernet Adapter (based on Realtek RTL8153) */ 819 { 820 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07c6, USB_CLASS_COMM, 821 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 822 .driver_info = 0, 823 }, 824 825 /* Microsoft Surface Ethernet Adapter (based on Realtek RTL8153B) */ 826 { 827 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x0927, USB_CLASS_COMM, 828 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 829 .driver_info = 0, 830 }, 831 832 /* TP-LINK UE300 USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */ 833 { 834 USB_DEVICE_AND_INTERFACE_INFO(TPLINK_VENDOR_ID, 0x0601, USB_CLASS_COMM, 835 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 836 .driver_info = 0, 837 }, 838 839 /* Aquantia AQtion USB to 5GbE Controller (based on AQC111U) */ 840 { 841 USB_DEVICE_AND_INTERFACE_INFO(AQUANTIA_VENDOR_ID, 0xc101, 842 USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, 843 USB_CDC_PROTO_NONE), 844 .driver_info = 0, 845 }, 846 847 /* ASIX USB 3.1 Gen1 to 5G Multi-Gigabit Ethernet Adapter(based on AQC111U) */ 848 { 849 USB_DEVICE_AND_INTERFACE_INFO(ASIX_VENDOR_ID, 0x2790, USB_CLASS_COMM, 850 USB_CDC_SUBCLASS_ETHERNET, 851 USB_CDC_PROTO_NONE), 852 .driver_info = 0, 853 }, 854 855 /* ASIX USB 3.1 Gen1 to 2.5G Multi-Gigabit Ethernet Adapter(based on AQC112U) */ 856 { 857 USB_DEVICE_AND_INTERFACE_INFO(ASIX_VENDOR_ID, 0x2791, USB_CLASS_COMM, 858 USB_CDC_SUBCLASS_ETHERNET, 859 USB_CDC_PROTO_NONE), 860 .driver_info = 0, 861 }, 862 863 /* USB-C 3.1 to 5GBASE-T Ethernet Adapter (based on AQC111U) */ 864 { 865 USB_DEVICE_AND_INTERFACE_INFO(0x20f4, 0xe05a, USB_CLASS_COMM, 866 USB_CDC_SUBCLASS_ETHERNET, 867 USB_CDC_PROTO_NONE), 868 .driver_info = 0, 869 }, 870 871 /* QNAP QNA-UC5G1T USB to 5GbE Adapter (based on AQC111U) */ 872 { 873 USB_DEVICE_AND_INTERFACE_INFO(0x1c04, 0x0015, USB_CLASS_COMM, 874 USB_CDC_SUBCLASS_ETHERNET, 875 USB_CDC_PROTO_NONE), 876 .driver_info = 0, 877 }, 878 879 /* WHITELIST!!! 880 * 881 * CDC Ether uses two interfaces, not necessarily consecutive. 882 * We match the main interface, ignoring the optional device 883 * class so we could handle devices that aren't exclusively 884 * CDC ether. 885 * 886 * NOTE: this match must come AFTER entries blacklisting devices 887 * because of bugs/quirks in a given product (like Zaurus, above). 888 */ 889 { 890 /* ZTE (Vodafone) K3805-Z */ 891 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1003, USB_CLASS_COMM, 892 USB_CDC_SUBCLASS_ETHERNET, 893 USB_CDC_PROTO_NONE), 894 .driver_info = (unsigned long)&wwan_info, 895 }, { 896 /* ZTE (Vodafone) K3806-Z */ 897 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1015, USB_CLASS_COMM, 898 USB_CDC_SUBCLASS_ETHERNET, 899 USB_CDC_PROTO_NONE), 900 .driver_info = (unsigned long)&wwan_info, 901 }, { 902 /* ZTE (Vodafone) K4510-Z */ 903 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1173, USB_CLASS_COMM, 904 USB_CDC_SUBCLASS_ETHERNET, 905 USB_CDC_PROTO_NONE), 906 .driver_info = (unsigned long)&wwan_info, 907 }, { 908 /* ZTE (Vodafone) K3770-Z */ 909 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1177, USB_CLASS_COMM, 910 USB_CDC_SUBCLASS_ETHERNET, 911 USB_CDC_PROTO_NONE), 912 .driver_info = (unsigned long)&wwan_info, 913 }, { 914 /* ZTE (Vodafone) K3772-Z */ 915 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1181, USB_CLASS_COMM, 916 USB_CDC_SUBCLASS_ETHERNET, 917 USB_CDC_PROTO_NONE), 918 .driver_info = (unsigned long)&wwan_info, 919 }, { 920 /* Telit modules */ 921 USB_VENDOR_AND_INTERFACE_INFO(0x1bc7, USB_CLASS_COMM, 922 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 923 .driver_info = (kernel_ulong_t) &wwan_info, 924 }, { 925 /* Dell DW5580 modules */ 926 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x81ba, USB_CLASS_COMM, 927 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 928 .driver_info = (kernel_ulong_t)&wwan_info, 929 }, { 930 /* Huawei ME906 and ME909 */ 931 USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0x15c1, USB_CLASS_COMM, 932 USB_CDC_SUBCLASS_ETHERNET, 933 USB_CDC_PROTO_NONE), 934 .driver_info = (unsigned long)&wwan_info, 935 }, { 936 /* ZTE modules */ 937 USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, USB_CLASS_COMM, 938 USB_CDC_SUBCLASS_ETHERNET, 939 USB_CDC_PROTO_NONE), 940 .driver_info = (unsigned long)&zte_cdc_info, 941 }, { 942 /* U-blox TOBY-L2 */ 943 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1143, USB_CLASS_COMM, 944 USB_CDC_SUBCLASS_ETHERNET, 945 USB_CDC_PROTO_NONE), 946 .driver_info = (unsigned long)&wwan_info, 947 }, { 948 /* U-blox SARA-U2 */ 949 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1104, USB_CLASS_COMM, 950 USB_CDC_SUBCLASS_ETHERNET, 951 USB_CDC_PROTO_NONE), 952 .driver_info = (unsigned long)&wwan_info, 953 }, { 954 /* Cinterion PLS8 modem by GEMALTO */ 955 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0061, USB_CLASS_COMM, 956 USB_CDC_SUBCLASS_ETHERNET, 957 USB_CDC_PROTO_NONE), 958 .driver_info = (unsigned long)&wwan_info, 959 }, { 960 /* Cinterion AHS3 modem by GEMALTO */ 961 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0055, USB_CLASS_COMM, 962 USB_CDC_SUBCLASS_ETHERNET, 963 USB_CDC_PROTO_NONE), 964 .driver_info = (unsigned long)&wwan_info, 965 }, { 966 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, 967 USB_CDC_PROTO_NONE), 968 .driver_info = (unsigned long) &cdc_info, 969 }, { 970 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM, 971 USB_CDC_PROTO_NONE), 972 .driver_info = (unsigned long)&wwan_info, 973 974 }, { 975 /* Various Huawei modems with a network port like the UMG1831 */ 976 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_COMM, 977 USB_CDC_SUBCLASS_ETHERNET, 255), 978 .driver_info = (unsigned long)&wwan_info, 979 }, 980 { }, /* END */ 981 }; 982 MODULE_DEVICE_TABLE(usb, products); 983 984 static struct usb_driver cdc_driver = { 985 .name = "cdc_ether", 986 .id_table = products, 987 .probe = usbnet_probe, 988 .disconnect = usbnet_disconnect, 989 .suspend = usbnet_suspend, 990 .resume = usbnet_resume, 991 .reset_resume = usbnet_resume, 992 .supports_autosuspend = 1, 993 .disable_hub_initiated_lpm = 1, 994 }; 995 996 module_usb_driver(cdc_driver); 997 998 MODULE_AUTHOR("David Brownell"); 999 MODULE_DESCRIPTION("USB CDC Ethernet devices"); 1000 MODULE_LICENSE("GPL"); 1001