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 void usbnet_cdc_update_filter(struct usbnet *dev) 67 { 68 struct net_device *net = dev->net; 69 70 u16 cdc_filter = USB_CDC_PACKET_TYPE_DIRECTED 71 | USB_CDC_PACKET_TYPE_BROADCAST; 72 73 /* filtering on the device is an optional feature and not worth 74 * the hassle so we just roughly care about snooping and if any 75 * multicast is requested, we take every multicast 76 */ 77 if (net->flags & IFF_PROMISC) 78 cdc_filter |= USB_CDC_PACKET_TYPE_PROMISCUOUS; 79 if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI)) 80 cdc_filter |= USB_CDC_PACKET_TYPE_ALL_MULTICAST; 81 82 usb_control_msg(dev->udev, 83 usb_sndctrlpipe(dev->udev, 0), 84 USB_CDC_SET_ETHERNET_PACKET_FILTER, 85 USB_TYPE_CLASS | USB_RECIP_INTERFACE, 86 cdc_filter, 87 dev->intf->cur_altsetting->desc.bInterfaceNumber, 88 NULL, 89 0, 90 USB_CTRL_SET_TIMEOUT 91 ); 92 } 93 EXPORT_SYMBOL_GPL(usbnet_cdc_update_filter); 94 95 /* probes control interface, claims data interface, collects the bulk 96 * endpoints, activates data interface (if needed), maybe sets MTU. 97 * all pure cdc, except for certain firmware workarounds, and knowing 98 * that rndis uses one different rule. 99 */ 100 int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf) 101 { 102 u8 *buf = intf->cur_altsetting->extra; 103 int len = intf->cur_altsetting->extralen; 104 struct usb_interface_descriptor *d; 105 struct cdc_state *info = (void *) &dev->data; 106 int status; 107 int rndis; 108 bool android_rndis_quirk = false; 109 struct usb_driver *driver = driver_of(intf); 110 struct usb_cdc_parsed_header header; 111 112 if (sizeof(dev->data) < sizeof(*info)) 113 return -EDOM; 114 115 /* expect strict spec conformance for the descriptors, but 116 * cope with firmware which stores them in the wrong place 117 */ 118 if (len == 0 && dev->udev->actconfig->extralen) { 119 /* Motorola SB4100 (and others: Brad Hards says it's 120 * from a Broadcom design) put CDC descriptors here 121 */ 122 buf = dev->udev->actconfig->extra; 123 len = dev->udev->actconfig->extralen; 124 dev_dbg(&intf->dev, "CDC descriptors on config\n"); 125 } 126 127 /* Maybe CDC descriptors are after the endpoint? This bug has 128 * been seen on some 2Wire Inc RNDIS-ish products. 129 */ 130 if (len == 0) { 131 struct usb_host_endpoint *hep; 132 133 hep = intf->cur_altsetting->endpoint; 134 if (hep) { 135 buf = hep->extra; 136 len = hep->extralen; 137 } 138 if (len) 139 dev_dbg(&intf->dev, 140 "CDC descriptors on endpoint\n"); 141 } 142 143 /* this assumes that if there's a non-RNDIS vendor variant 144 * of cdc-acm, it'll fail RNDIS requests cleanly. 145 */ 146 rndis = (is_rndis(&intf->cur_altsetting->desc) || 147 is_activesync(&intf->cur_altsetting->desc) || 148 is_wireless_rndis(&intf->cur_altsetting->desc) || 149 is_novatel_rndis(&intf->cur_altsetting->desc)); 150 151 memset(info, 0, sizeof(*info)); 152 info->control = intf; 153 154 cdc_parse_cdc_header(&header, intf, buf, len); 155 156 info->u = header.usb_cdc_union_desc; 157 info->header = header.usb_cdc_header_desc; 158 info->ether = header.usb_cdc_ether_desc; 159 if (!info->u) { 160 if (rndis) 161 goto skip; 162 else /* in that case a quirk is mandatory */ 163 goto bad_desc; 164 } 165 /* we need a master/control interface (what we're 166 * probed with) and a slave/data interface; union 167 * descriptors sort this all out. 168 */ 169 info->control = usb_ifnum_to_if(dev->udev, info->u->bMasterInterface0); 170 info->data = usb_ifnum_to_if(dev->udev, info->u->bSlaveInterface0); 171 if (!info->control || !info->data) { 172 dev_dbg(&intf->dev, 173 "master #%u/%p slave #%u/%p\n", 174 info->u->bMasterInterface0, 175 info->control, 176 info->u->bSlaveInterface0, 177 info->data); 178 /* fall back to hard-wiring for RNDIS */ 179 if (rndis) { 180 android_rndis_quirk = true; 181 goto skip; 182 } 183 goto bad_desc; 184 } 185 if (info->control != intf) { 186 dev_dbg(&intf->dev, "bogus CDC Union\n"); 187 /* Ambit USB Cable Modem (and maybe others) 188 * interchanges master and slave interface. 189 */ 190 if (info->data == intf) { 191 info->data = info->control; 192 info->control = intf; 193 } else 194 goto bad_desc; 195 } 196 197 /* some devices merge these - skip class check */ 198 if (info->control == info->data) 199 goto skip; 200 201 /* a data interface altsetting does the real i/o */ 202 d = &info->data->cur_altsetting->desc; 203 if (d->bInterfaceClass != USB_CLASS_CDC_DATA) { 204 dev_dbg(&intf->dev, "slave class %u\n", d->bInterfaceClass); 205 goto bad_desc; 206 } 207 skip: 208 /* Communcation class functions with bmCapabilities are not 209 * RNDIS. But some Wireless class RNDIS functions use 210 * bmCapabilities for their own purpose. The failsafe is 211 * therefore applied only to Communication class RNDIS 212 * functions. The rndis test is redundant, but a cheap 213 * optimization. 214 */ 215 if (rndis && is_rndis(&intf->cur_altsetting->desc) && 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 && info->ether->wMaxSegmentSize) { 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 return 0; 314 315 bad_desc: 316 dev_info(&dev->udev->dev, "bad CDC descriptors\n"); 317 return -ENODEV; 318 } 319 EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind); 320 321 322 /* like usbnet_generic_cdc_bind() but handles filter initialization 323 * correctly 324 */ 325 int usbnet_ether_cdc_bind(struct usbnet *dev, struct usb_interface *intf) 326 { 327 int rv; 328 329 rv = usbnet_generic_cdc_bind(dev, intf); 330 if (rv < 0) 331 goto bail_out; 332 333 /* Some devices don't initialise properly. In particular 334 * the packet filter is not reset. There are devices that 335 * don't do reset all the way. So the packet filter should 336 * be set to a sane initial value. 337 */ 338 usbnet_cdc_update_filter(dev); 339 340 bail_out: 341 return rv; 342 } 343 EXPORT_SYMBOL_GPL(usbnet_ether_cdc_bind); 344 345 void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf) 346 { 347 struct cdc_state *info = (void *) &dev->data; 348 struct usb_driver *driver = driver_of(intf); 349 350 /* combined interface - nothing to do */ 351 if (info->data == info->control) 352 return; 353 354 /* disconnect master --> disconnect slave */ 355 if (intf == info->control && info->data) { 356 /* ensure immediate exit from usbnet_disconnect */ 357 usb_set_intfdata(info->data, NULL); 358 usb_driver_release_interface(driver, info->data); 359 info->data = NULL; 360 } 361 362 /* and vice versa (just in case) */ 363 else if (intf == info->data && info->control) { 364 /* ensure immediate exit from usbnet_disconnect */ 365 usb_set_intfdata(info->control, NULL); 366 usb_driver_release_interface(driver, info->control); 367 info->control = NULL; 368 } 369 } 370 EXPORT_SYMBOL_GPL(usbnet_cdc_unbind); 371 372 /* Communications Device Class, Ethernet Control model 373 * 374 * Takes two interfaces. The DATA interface is inactive till an altsetting 375 * is selected. Configuration data includes class descriptors. There's 376 * an optional status endpoint on the control interface. 377 * 378 * This should interop with whatever the 2.4 "CDCEther.c" driver 379 * (by Brad Hards) talked with, with more functionality. 380 */ 381 382 static void dumpspeed(struct usbnet *dev, __le32 *speeds) 383 { 384 netif_info(dev, timer, dev->net, 385 "link speeds: %u kbps up, %u kbps down\n", 386 __le32_to_cpu(speeds[0]) / 1000, 387 __le32_to_cpu(speeds[1]) / 1000); 388 } 389 390 void usbnet_cdc_status(struct usbnet *dev, struct urb *urb) 391 { 392 struct usb_cdc_notification *event; 393 394 if (urb->actual_length < sizeof(*event)) 395 return; 396 397 /* SPEED_CHANGE can get split into two 8-byte packets */ 398 if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) { 399 dumpspeed(dev, (__le32 *) urb->transfer_buffer); 400 return; 401 } 402 403 event = urb->transfer_buffer; 404 switch (event->bNotificationType) { 405 case USB_CDC_NOTIFY_NETWORK_CONNECTION: 406 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n", 407 event->wValue ? "on" : "off"); 408 usbnet_link_change(dev, !!event->wValue, 0); 409 break; 410 case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */ 411 netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n", 412 urb->actual_length); 413 if (urb->actual_length != (sizeof(*event) + 8)) 414 set_bit(EVENT_STS_SPLIT, &dev->flags); 415 else 416 dumpspeed(dev, (__le32 *) &event[1]); 417 break; 418 /* USB_CDC_NOTIFY_RESPONSE_AVAILABLE can happen too (e.g. RNDIS), 419 * but there are no standard formats for the response data. 420 */ 421 default: 422 netdev_err(dev->net, "CDC: unexpected notification %02x!\n", 423 event->bNotificationType); 424 break; 425 } 426 } 427 EXPORT_SYMBOL_GPL(usbnet_cdc_status); 428 429 int usbnet_cdc_bind(struct usbnet *dev, struct usb_interface *intf) 430 { 431 int status; 432 struct cdc_state *info = (void *) &dev->data; 433 434 BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) 435 < sizeof(struct cdc_state))); 436 437 status = usbnet_ether_cdc_bind(dev, intf); 438 if (status < 0) 439 return status; 440 441 status = usbnet_get_ethernet_addr(dev, info->ether->iMACAddress); 442 if (status < 0) { 443 usb_set_intfdata(info->data, NULL); 444 usb_driver_release_interface(driver_of(intf), info->data); 445 return status; 446 } 447 448 return 0; 449 } 450 EXPORT_SYMBOL_GPL(usbnet_cdc_bind); 451 452 static int usbnet_cdc_zte_bind(struct usbnet *dev, struct usb_interface *intf) 453 { 454 int status = usbnet_cdc_bind(dev, intf); 455 456 if (!status && (dev->net->dev_addr[0] & 0x02)) 457 eth_hw_addr_random(dev->net); 458 459 return status; 460 } 461 462 /* Make sure packets have correct destination MAC address 463 * 464 * A firmware bug observed on some devices (ZTE MF823/831/910) is that the 465 * device sends packets with a static, bogus, random MAC address (event if 466 * device MAC address has been updated). Always set MAC address to that of the 467 * device. 468 */ 469 static int usbnet_cdc_zte_rx_fixup(struct usbnet *dev, struct sk_buff *skb) 470 { 471 if (skb->len < ETH_HLEN || !(skb->data[0] & 0x02)) 472 return 1; 473 474 skb_reset_mac_header(skb); 475 ether_addr_copy(eth_hdr(skb)->h_dest, dev->net->dev_addr); 476 477 return 1; 478 } 479 480 /* Ensure correct link state 481 * 482 * Some devices (ZTE MF823/831/910) export two carrier on notifications when 483 * connected. This causes the link state to be incorrect. Work around this by 484 * always setting the state to off, then on. 485 */ 486 static void usbnet_cdc_zte_status(struct usbnet *dev, struct urb *urb) 487 { 488 struct usb_cdc_notification *event; 489 490 if (urb->actual_length < sizeof(*event)) 491 return; 492 493 event = urb->transfer_buffer; 494 495 if (event->bNotificationType != USB_CDC_NOTIFY_NETWORK_CONNECTION) { 496 usbnet_cdc_status(dev, urb); 497 return; 498 } 499 500 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n", 501 event->wValue ? "on" : "off"); 502 503 if (event->wValue && 504 netif_carrier_ok(dev->net)) 505 netif_carrier_off(dev->net); 506 507 usbnet_link_change(dev, !!event->wValue, 0); 508 } 509 510 static const struct driver_info cdc_info = { 511 .description = "CDC Ethernet Device", 512 .flags = FLAG_ETHER | FLAG_POINTTOPOINT, 513 .bind = usbnet_cdc_bind, 514 .unbind = usbnet_cdc_unbind, 515 .status = usbnet_cdc_status, 516 .set_rx_mode = usbnet_cdc_update_filter, 517 .manage_power = usbnet_manage_power, 518 }; 519 520 static const struct driver_info zte_cdc_info = { 521 .description = "ZTE CDC Ethernet Device", 522 .flags = FLAG_ETHER | FLAG_POINTTOPOINT, 523 .bind = usbnet_cdc_zte_bind, 524 .unbind = usbnet_cdc_unbind, 525 .status = usbnet_cdc_zte_status, 526 .set_rx_mode = usbnet_cdc_update_filter, 527 .manage_power = usbnet_manage_power, 528 .rx_fixup = usbnet_cdc_zte_rx_fixup, 529 }; 530 531 static const struct driver_info wwan_info = { 532 .description = "Mobile Broadband Network Device", 533 .flags = FLAG_WWAN, 534 .bind = usbnet_cdc_bind, 535 .unbind = usbnet_cdc_unbind, 536 .status = usbnet_cdc_status, 537 .set_rx_mode = usbnet_cdc_update_filter, 538 .manage_power = usbnet_manage_power, 539 }; 540 541 /*-------------------------------------------------------------------------*/ 542 543 #define HUAWEI_VENDOR_ID 0x12D1 544 #define NOVATEL_VENDOR_ID 0x1410 545 #define ZTE_VENDOR_ID 0x19D2 546 #define DELL_VENDOR_ID 0x413C 547 #define REALTEK_VENDOR_ID 0x0bda 548 #define SAMSUNG_VENDOR_ID 0x04e8 549 #define LENOVO_VENDOR_ID 0x17ef 550 #define LINKSYS_VENDOR_ID 0x13b1 551 #define NVIDIA_VENDOR_ID 0x0955 552 #define HP_VENDOR_ID 0x03f0 553 #define MICROSOFT_VENDOR_ID 0x045e 554 #define UBLOX_VENDOR_ID 0x1546 555 #define TPLINK_VENDOR_ID 0x2357 556 #define AQUANTIA_VENDOR_ID 0x2eca 557 #define ASIX_VENDOR_ID 0x0b95 558 559 static const struct usb_device_id products[] = { 560 /* BLACKLIST !! 561 * 562 * First blacklist any products that are egregiously nonconformant 563 * with the CDC Ethernet specs. Minor braindamage we cope with; when 564 * they're not even trying, needing a separate driver is only the first 565 * of the differences to show up. 566 */ 567 568 #define ZAURUS_MASTER_INTERFACE \ 569 .bInterfaceClass = USB_CLASS_COMM, \ 570 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \ 571 .bInterfaceProtocol = USB_CDC_PROTO_NONE 572 573 /* SA-1100 based Sharp Zaurus ("collie"), or compatible; 574 * wire-incompatible with true CDC Ethernet implementations. 575 * (And, it seems, needlessly so...) 576 */ 577 { 578 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 579 | USB_DEVICE_ID_MATCH_DEVICE, 580 .idVendor = 0x04DD, 581 .idProduct = 0x8004, 582 ZAURUS_MASTER_INTERFACE, 583 .driver_info = 0, 584 }, 585 586 /* PXA-25x based Sharp Zaurii. Note that it seems some of these 587 * (later models especially) may have shipped only with firmware 588 * advertising false "CDC MDLM" compatibility ... but we're not 589 * clear which models did that, so for now let's assume the worst. 590 */ 591 { 592 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 593 | USB_DEVICE_ID_MATCH_DEVICE, 594 .idVendor = 0x04DD, 595 .idProduct = 0x8005, /* A-300 */ 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 = 0x8006, /* B-500/SL-5600 */ 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 = 0x8007, /* C-700 */ 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 = 0x9031, /* C-750 C-760 */ 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 .idProduct = 0x9032, /* SL-6000 */ 624 ZAURUS_MASTER_INTERFACE, 625 .driver_info = 0, 626 }, { 627 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 628 | USB_DEVICE_ID_MATCH_DEVICE, 629 .idVendor = 0x04DD, 630 /* reported with some C860 units */ 631 .idProduct = 0x9050, /* C-860 */ 632 ZAURUS_MASTER_INTERFACE, 633 .driver_info = 0, 634 }, 635 636 /* Olympus has some models with a Zaurus-compatible option. 637 * R-1000 uses a FreeScale i.MXL cpu (ARMv4T) 638 */ 639 { 640 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 641 | USB_DEVICE_ID_MATCH_DEVICE, 642 .idVendor = 0x07B4, 643 .idProduct = 0x0F02, /* R-1000 */ 644 ZAURUS_MASTER_INTERFACE, 645 .driver_info = 0, 646 }, 647 648 /* LG Electronics VL600 wants additional headers on every frame */ 649 { 650 USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM, 651 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 652 .driver_info = 0, 653 }, 654 655 /* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */ 656 { 657 USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM, 658 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), 659 .driver_info = 0, 660 }, 661 662 /* Novatel USB551L and MC551 - handled by qmi_wwan */ 663 { 664 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0xB001, USB_CLASS_COMM, 665 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 666 .driver_info = 0, 667 }, 668 669 /* Novatel E362 - handled by qmi_wwan */ 670 { 671 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9010, 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, 0x8195, USB_CLASS_COMM, 679 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 680 .driver_info = 0, 681 }, 682 683 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */ 684 { 685 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8196, USB_CLASS_COMM, 686 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 687 .driver_info = 0, 688 }, 689 690 /* Dell Wireless 5804 (Novatel E371) - handled by qmi_wwan */ 691 { 692 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x819b, USB_CLASS_COMM, 693 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 694 .driver_info = 0, 695 }, 696 697 /* Novatel Expedite E371 - handled by qmi_wwan */ 698 { 699 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9011, USB_CLASS_COMM, 700 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 701 .driver_info = 0, 702 }, 703 704 /* HP lt2523 (Novatel E371) - handled by qmi_wwan */ 705 { 706 USB_DEVICE_AND_INTERFACE_INFO(HP_VENDOR_ID, 0x421d, USB_CLASS_COMM, 707 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 708 .driver_info = 0, 709 }, 710 711 /* AnyDATA ADU960S - handled by qmi_wwan */ 712 { 713 USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, USB_CLASS_COMM, 714 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 715 .driver_info = 0, 716 }, 717 718 /* Huawei E1820 - handled by qmi_wwan */ 719 { 720 USB_DEVICE_INTERFACE_NUMBER(HUAWEI_VENDOR_ID, 0x14ac, 1), 721 .driver_info = 0, 722 }, 723 724 /* Realtek RTL8152 Based USB 2.0 Ethernet Adapters */ 725 { 726 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8152, USB_CLASS_COMM, 727 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 728 .driver_info = 0, 729 }, 730 731 /* Realtek RTL8153 Based USB 3.0 Ethernet Adapters */ 732 { 733 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8153, USB_CLASS_COMM, 734 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 735 .driver_info = 0, 736 }, 737 738 /* Samsung USB Ethernet Adapters */ 739 { 740 USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, 0xa101, USB_CLASS_COMM, 741 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 742 .driver_info = 0, 743 }, 744 745 #if IS_ENABLED(CONFIG_USB_RTL8152) 746 /* Linksys USB3GIGV1 Ethernet Adapter */ 747 { 748 USB_DEVICE_AND_INTERFACE_INFO(LINKSYS_VENDOR_ID, 0x0041, USB_CLASS_COMM, 749 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 750 .driver_info = 0, 751 }, 752 #endif 753 754 /* ThinkPad USB-C Dock (based on Realtek RTL8153) */ 755 { 756 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3062, USB_CLASS_COMM, 757 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 758 .driver_info = 0, 759 }, 760 761 /* ThinkPad Thunderbolt 3 Dock (based on Realtek RTL8153) */ 762 { 763 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3069, USB_CLASS_COMM, 764 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 765 .driver_info = 0, 766 }, 767 768 /* ThinkPad Thunderbolt 3 Dock Gen 2 (based on Realtek RTL8153) */ 769 { 770 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3082, USB_CLASS_COMM, 771 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 772 .driver_info = 0, 773 }, 774 775 /* Lenovo Thinkpad USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */ 776 { 777 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7205, USB_CLASS_COMM, 778 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 779 .driver_info = 0, 780 }, 781 782 /* Lenovo USB C to Ethernet Adapter (based on Realtek RTL8153) */ 783 { 784 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x720c, USB_CLASS_COMM, 785 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 786 .driver_info = 0, 787 }, 788 789 /* Lenovo USB-C Travel Hub (based on Realtek RTL8153) */ 790 { 791 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7214, USB_CLASS_COMM, 792 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 793 .driver_info = 0, 794 }, 795 796 /* Lenovo Powered USB-C Travel Hub (4X90S92381, based on Realtek RTL8153) */ 797 { 798 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x721e, USB_CLASS_COMM, 799 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 800 .driver_info = 0, 801 }, 802 803 /* ThinkPad USB-C Dock Gen 2 (based on Realtek RTL8153) */ 804 { 805 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0xa387, USB_CLASS_COMM, 806 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 807 .driver_info = 0, 808 }, 809 810 /* NVIDIA Tegra USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */ 811 { 812 USB_DEVICE_AND_INTERFACE_INFO(NVIDIA_VENDOR_ID, 0x09ff, USB_CLASS_COMM, 813 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 814 .driver_info = 0, 815 }, 816 817 /* Microsoft Surface 2 dock (based on Realtek RTL8152) */ 818 { 819 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07ab, USB_CLASS_COMM, 820 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 821 .driver_info = 0, 822 }, 823 824 /* Microsoft Surface Ethernet Adapter (based on Realtek RTL8153) */ 825 { 826 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07c6, USB_CLASS_COMM, 827 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 828 .driver_info = 0, 829 }, 830 831 /* Microsoft Surface Ethernet Adapter (based on Realtek RTL8153B) */ 832 { 833 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x0927, USB_CLASS_COMM, 834 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 835 .driver_info = 0, 836 }, 837 838 /* TP-LINK UE300 USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */ 839 { 840 USB_DEVICE_AND_INTERFACE_INFO(TPLINK_VENDOR_ID, 0x0601, USB_CLASS_COMM, 841 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 842 .driver_info = 0, 843 }, 844 845 /* Aquantia AQtion USB to 5GbE Controller (based on AQC111U) */ 846 { 847 USB_DEVICE_AND_INTERFACE_INFO(AQUANTIA_VENDOR_ID, 0xc101, 848 USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, 849 USB_CDC_PROTO_NONE), 850 .driver_info = 0, 851 }, 852 853 /* ASIX USB 3.1 Gen1 to 5G Multi-Gigabit Ethernet Adapter(based on AQC111U) */ 854 { 855 USB_DEVICE_AND_INTERFACE_INFO(ASIX_VENDOR_ID, 0x2790, USB_CLASS_COMM, 856 USB_CDC_SUBCLASS_ETHERNET, 857 USB_CDC_PROTO_NONE), 858 .driver_info = 0, 859 }, 860 861 /* ASIX USB 3.1 Gen1 to 2.5G Multi-Gigabit Ethernet Adapter(based on AQC112U) */ 862 { 863 USB_DEVICE_AND_INTERFACE_INFO(ASIX_VENDOR_ID, 0x2791, USB_CLASS_COMM, 864 USB_CDC_SUBCLASS_ETHERNET, 865 USB_CDC_PROTO_NONE), 866 .driver_info = 0, 867 }, 868 869 /* USB-C 3.1 to 5GBASE-T Ethernet Adapter (based on AQC111U) */ 870 { 871 USB_DEVICE_AND_INTERFACE_INFO(0x20f4, 0xe05a, USB_CLASS_COMM, 872 USB_CDC_SUBCLASS_ETHERNET, 873 USB_CDC_PROTO_NONE), 874 .driver_info = 0, 875 }, 876 877 /* QNAP QNA-UC5G1T USB to 5GbE Adapter (based on AQC111U) */ 878 { 879 USB_DEVICE_AND_INTERFACE_INFO(0x1c04, 0x0015, USB_CLASS_COMM, 880 USB_CDC_SUBCLASS_ETHERNET, 881 USB_CDC_PROTO_NONE), 882 .driver_info = 0, 883 }, 884 885 /* WHITELIST!!! 886 * 887 * CDC Ether uses two interfaces, not necessarily consecutive. 888 * We match the main interface, ignoring the optional device 889 * class so we could handle devices that aren't exclusively 890 * CDC ether. 891 * 892 * NOTE: this match must come AFTER entries blacklisting devices 893 * because of bugs/quirks in a given product (like Zaurus, above). 894 */ 895 { 896 /* ZTE (Vodafone) K3805-Z */ 897 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1003, USB_CLASS_COMM, 898 USB_CDC_SUBCLASS_ETHERNET, 899 USB_CDC_PROTO_NONE), 900 .driver_info = (unsigned long)&wwan_info, 901 }, { 902 /* ZTE (Vodafone) K3806-Z */ 903 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1015, USB_CLASS_COMM, 904 USB_CDC_SUBCLASS_ETHERNET, 905 USB_CDC_PROTO_NONE), 906 .driver_info = (unsigned long)&wwan_info, 907 }, { 908 /* ZTE (Vodafone) K4510-Z */ 909 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1173, USB_CLASS_COMM, 910 USB_CDC_SUBCLASS_ETHERNET, 911 USB_CDC_PROTO_NONE), 912 .driver_info = (unsigned long)&wwan_info, 913 }, { 914 /* ZTE (Vodafone) K3770-Z */ 915 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1177, USB_CLASS_COMM, 916 USB_CDC_SUBCLASS_ETHERNET, 917 USB_CDC_PROTO_NONE), 918 .driver_info = (unsigned long)&wwan_info, 919 }, { 920 /* ZTE (Vodafone) K3772-Z */ 921 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1181, USB_CLASS_COMM, 922 USB_CDC_SUBCLASS_ETHERNET, 923 USB_CDC_PROTO_NONE), 924 .driver_info = (unsigned long)&wwan_info, 925 }, { 926 /* Telit modules */ 927 USB_VENDOR_AND_INTERFACE_INFO(0x1bc7, USB_CLASS_COMM, 928 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 929 .driver_info = (kernel_ulong_t) &wwan_info, 930 }, { 931 /* Dell DW5580 modules */ 932 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x81ba, USB_CLASS_COMM, 933 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 934 .driver_info = (kernel_ulong_t)&wwan_info, 935 }, { 936 /* Huawei ME906 and ME909 */ 937 USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0x15c1, USB_CLASS_COMM, 938 USB_CDC_SUBCLASS_ETHERNET, 939 USB_CDC_PROTO_NONE), 940 .driver_info = (unsigned long)&wwan_info, 941 }, { 942 /* ZTE modules */ 943 USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, USB_CLASS_COMM, 944 USB_CDC_SUBCLASS_ETHERNET, 945 USB_CDC_PROTO_NONE), 946 .driver_info = (unsigned long)&zte_cdc_info, 947 }, { 948 /* U-blox TOBY-L2 */ 949 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1143, USB_CLASS_COMM, 950 USB_CDC_SUBCLASS_ETHERNET, 951 USB_CDC_PROTO_NONE), 952 .driver_info = (unsigned long)&wwan_info, 953 }, { 954 /* U-blox SARA-U2 */ 955 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1104, USB_CLASS_COMM, 956 USB_CDC_SUBCLASS_ETHERNET, 957 USB_CDC_PROTO_NONE), 958 .driver_info = (unsigned long)&wwan_info, 959 }, { 960 /* Cinterion PLS8 modem by GEMALTO */ 961 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0061, USB_CLASS_COMM, 962 USB_CDC_SUBCLASS_ETHERNET, 963 USB_CDC_PROTO_NONE), 964 .driver_info = (unsigned long)&wwan_info, 965 }, { 966 /* Cinterion AHS3 modem by GEMALTO */ 967 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0055, USB_CLASS_COMM, 968 USB_CDC_SUBCLASS_ETHERNET, 969 USB_CDC_PROTO_NONE), 970 .driver_info = (unsigned long)&wwan_info, 971 }, { 972 /* Cinterion PLS83/PLS63 modem by GEMALTO/THALES */ 973 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0069, USB_CLASS_COMM, 974 USB_CDC_SUBCLASS_ETHERNET, 975 USB_CDC_PROTO_NONE), 976 .driver_info = (unsigned long)&wwan_info, 977 }, { 978 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, 979 USB_CDC_PROTO_NONE), 980 .driver_info = (unsigned long) &cdc_info, 981 }, { 982 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM, 983 USB_CDC_PROTO_NONE), 984 .driver_info = (unsigned long)&wwan_info, 985 986 }, { 987 /* Various Huawei modems with a network port like the UMG1831 */ 988 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_COMM, 989 USB_CDC_SUBCLASS_ETHERNET, 255), 990 .driver_info = (unsigned long)&wwan_info, 991 }, 992 { }, /* END */ 993 }; 994 MODULE_DEVICE_TABLE(usb, products); 995 996 static struct usb_driver cdc_driver = { 997 .name = "cdc_ether", 998 .id_table = products, 999 .probe = usbnet_probe, 1000 .disconnect = usbnet_disconnect, 1001 .suspend = usbnet_suspend, 1002 .resume = usbnet_resume, 1003 .reset_resume = usbnet_resume, 1004 .supports_autosuspend = 1, 1005 .disable_hub_initiated_lpm = 1, 1006 }; 1007 1008 module_usb_driver(cdc_driver); 1009 1010 MODULE_AUTHOR("David Brownell"); 1011 MODULE_DESCRIPTION("USB CDC Ethernet devices"); 1012 MODULE_LICENSE("GPL"); 1013