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