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 24static 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 31static 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 38static 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 45static 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 61static 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 66void 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} 93EXPORT_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 */ 100int 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 } 207skip: 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 315bad_desc: 316 dev_info(&dev->udev->dev, "bad CDC descriptors\n"); 317 return -ENODEV; 318} 319EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind); 320 321 322/* like usbnet_generic_cdc_bind() but handles filter initialization 323 * correctly 324 */ 325int 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 340bail_out: 341 return rv; 342} 343EXPORT_SYMBOL_GPL(usbnet_ether_cdc_bind); 344 345void 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} 370EXPORT_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 382static 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 390void 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} 427EXPORT_SYMBOL_GPL(usbnet_cdc_status); 428 429int 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} 450EXPORT_SYMBOL_GPL(usbnet_cdc_bind); 451 452static 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 */ 469static 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 */ 486static 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 510static 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 520static 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 531static 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 559static 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#define ZAURUS_FAKE_INTERFACE \ 574 .bInterfaceClass = USB_CLASS_COMM, \ 575 .bInterfaceSubClass = USB_CDC_SUBCLASS_MDLM, \ 576 .bInterfaceProtocol = USB_CDC_PROTO_NONE 577 578/* SA-1100 based Sharp Zaurus ("collie"), or compatible; 579 * wire-incompatible with true CDC Ethernet implementations. 580 * (And, it seems, needlessly so...) 581 */ 582{ 583 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 584 | USB_DEVICE_ID_MATCH_DEVICE, 585 .idVendor = 0x04DD, 586 .idProduct = 0x8004, 587 ZAURUS_MASTER_INTERFACE, 588 .driver_info = 0, 589}, 590 591/* PXA-25x based Sharp Zaurii. Note that it seems some of these 592 * (later models especially) may have shipped only with firmware 593 * advertising false "CDC MDLM" compatibility ... but we're not 594 * clear which models did that, so for now let's assume the worst. 595 */ 596{ 597 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 598 | USB_DEVICE_ID_MATCH_DEVICE, 599 .idVendor = 0x04DD, 600 .idProduct = 0x8005, /* A-300 */ 601 ZAURUS_MASTER_INTERFACE, 602 .driver_info = 0, 603}, { 604 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 605 | USB_DEVICE_ID_MATCH_DEVICE, 606 .idVendor = 0x04DD, 607 .idProduct = 0x8005, /* A-300 */ 608 ZAURUS_FAKE_INTERFACE, 609 .driver_info = 0, 610}, { 611 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 612 | USB_DEVICE_ID_MATCH_DEVICE, 613 .idVendor = 0x04DD, 614 .idProduct = 0x8006, /* B-500/SL-5600 */ 615 ZAURUS_MASTER_INTERFACE, 616 .driver_info = 0, 617}, { 618 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 619 | USB_DEVICE_ID_MATCH_DEVICE, 620 .idVendor = 0x04DD, 621 .idProduct = 0x8006, /* B-500/SL-5600 */ 622 ZAURUS_FAKE_INTERFACE, 623 .driver_info = 0, 624}, { 625 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 626 | USB_DEVICE_ID_MATCH_DEVICE, 627 .idVendor = 0x04DD, 628 .idProduct = 0x8007, /* C-700 */ 629 ZAURUS_MASTER_INTERFACE, 630 .driver_info = 0, 631}, { 632 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 633 | USB_DEVICE_ID_MATCH_DEVICE, 634 .idVendor = 0x04DD, 635 .idProduct = 0x8007, /* C-700 */ 636 ZAURUS_FAKE_INTERFACE, 637 .driver_info = 0, 638}, { 639 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 640 | USB_DEVICE_ID_MATCH_DEVICE, 641 .idVendor = 0x04DD, 642 .idProduct = 0x9031, /* C-750 C-760 */ 643 ZAURUS_MASTER_INTERFACE, 644 .driver_info = 0, 645}, { 646 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 647 | USB_DEVICE_ID_MATCH_DEVICE, 648 .idVendor = 0x04DD, 649 .idProduct = 0x9032, /* SL-6000 */ 650 ZAURUS_MASTER_INTERFACE, 651 .driver_info = 0, 652}, { 653 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 654 | USB_DEVICE_ID_MATCH_DEVICE, 655 .idVendor = 0x04DD, 656 .idProduct = 0x9032, /* SL-6000 */ 657 ZAURUS_FAKE_INTERFACE, 658 .driver_info = 0, 659}, { 660 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 661 | USB_DEVICE_ID_MATCH_DEVICE, 662 .idVendor = 0x04DD, 663 /* reported with some C860 units */ 664 .idProduct = 0x9050, /* C-860 */ 665 ZAURUS_MASTER_INTERFACE, 666 .driver_info = 0, 667}, 668 669/* Olympus has some models with a Zaurus-compatible option. 670 * R-1000 uses a FreeScale i.MXL cpu (ARMv4T) 671 */ 672{ 673 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 674 | USB_DEVICE_ID_MATCH_DEVICE, 675 .idVendor = 0x07B4, 676 .idProduct = 0x0F02, /* R-1000 */ 677 ZAURUS_MASTER_INTERFACE, 678 .driver_info = 0, 679}, 680 681/* LG Electronics VL600 wants additional headers on every frame */ 682{ 683 USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM, 684 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 685 .driver_info = 0, 686}, 687 688/* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */ 689{ 690 USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM, 691 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), 692 .driver_info = 0, 693}, 694 695/* Novatel USB551L and MC551 - handled by qmi_wwan */ 696{ 697 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0xB001, USB_CLASS_COMM, 698 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 699 .driver_info = 0, 700}, 701 702/* Novatel E362 - handled by qmi_wwan */ 703{ 704 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9010, USB_CLASS_COMM, 705 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 706 .driver_info = 0, 707}, 708 709/* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */ 710{ 711 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8195, USB_CLASS_COMM, 712 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 713 .driver_info = 0, 714}, 715 716/* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */ 717{ 718 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8196, USB_CLASS_COMM, 719 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 720 .driver_info = 0, 721}, 722 723/* Dell Wireless 5804 (Novatel E371) - handled by qmi_wwan */ 724{ 725 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x819b, USB_CLASS_COMM, 726 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 727 .driver_info = 0, 728}, 729 730/* Novatel Expedite E371 - handled by qmi_wwan */ 731{ 732 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9011, USB_CLASS_COMM, 733 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 734 .driver_info = 0, 735}, 736 737/* HP lt2523 (Novatel E371) - handled by qmi_wwan */ 738{ 739 USB_DEVICE_AND_INTERFACE_INFO(HP_VENDOR_ID, 0x421d, USB_CLASS_COMM, 740 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 741 .driver_info = 0, 742}, 743 744/* AnyDATA ADU960S - handled by qmi_wwan */ 745{ 746 USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, USB_CLASS_COMM, 747 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 748 .driver_info = 0, 749}, 750 751/* Huawei E1820 - handled by qmi_wwan */ 752{ 753 USB_DEVICE_INTERFACE_NUMBER(HUAWEI_VENDOR_ID, 0x14ac, 1), 754 .driver_info = 0, 755}, 756 757/* Realtek RTL8152 Based USB 2.0 Ethernet Adapters */ 758{ 759 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8152, USB_CLASS_COMM, 760 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 761 .driver_info = 0, 762}, 763 764/* Realtek RTL8153 Based USB 3.0 Ethernet Adapters */ 765{ 766 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8153, USB_CLASS_COMM, 767 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 768 .driver_info = 0, 769}, 770 771/* Samsung USB Ethernet Adapters */ 772{ 773 USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, 0xa101, USB_CLASS_COMM, 774 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 775 .driver_info = 0, 776}, 777 778#if IS_ENABLED(CONFIG_USB_RTL8152) 779/* Linksys USB3GIGV1 Ethernet Adapter */ 780{ 781 USB_DEVICE_AND_INTERFACE_INFO(LINKSYS_VENDOR_ID, 0x0041, USB_CLASS_COMM, 782 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 783 .driver_info = 0, 784}, 785#endif 786 787/* Lenovo ThinkPad OneLink+ Dock (based on Realtek RTL8153) */ 788{ 789 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3054, USB_CLASS_COMM, 790 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 791 .driver_info = 0, 792}, 793 794/* ThinkPad USB-C Dock (based on Realtek RTL8153) */ 795{ 796 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3062, USB_CLASS_COMM, 797 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 798 .driver_info = 0, 799}, 800 801/* ThinkPad Thunderbolt 3 Dock (based on Realtek RTL8153) */ 802{ 803 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3069, USB_CLASS_COMM, 804 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 805 .driver_info = 0, 806}, 807 808/* ThinkPad Thunderbolt 3 Dock Gen 2 (based on Realtek RTL8153) */ 809{ 810 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3082, USB_CLASS_COMM, 811 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 812 .driver_info = 0, 813}, 814 815/* Lenovo Thinkpad USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */ 816{ 817 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7205, USB_CLASS_COMM, 818 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 819 .driver_info = 0, 820}, 821 822/* Lenovo USB C to Ethernet Adapter (based on Realtek RTL8153) */ 823{ 824 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x720c, USB_CLASS_COMM, 825 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 826 .driver_info = 0, 827}, 828 829/* Lenovo USB-C Travel Hub (based on Realtek RTL8153) */ 830{ 831 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7214, USB_CLASS_COMM, 832 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 833 .driver_info = 0, 834}, 835 836/* Lenovo Powered USB-C Travel Hub (4X90S92381, based on Realtek RTL8153) */ 837{ 838 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x721e, USB_CLASS_COMM, 839 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 840 .driver_info = 0, 841}, 842 843/* ThinkPad USB-C Dock Gen 2 (based on Realtek RTL8153) */ 844{ 845 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0xa387, USB_CLASS_COMM, 846 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 847 .driver_info = 0, 848}, 849 850/* NVIDIA Tegra USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */ 851{ 852 USB_DEVICE_AND_INTERFACE_INFO(NVIDIA_VENDOR_ID, 0x09ff, USB_CLASS_COMM, 853 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 854 .driver_info = 0, 855}, 856 857/* Microsoft Surface 2 dock (based on Realtek RTL8152) */ 858{ 859 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07ab, USB_CLASS_COMM, 860 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 861 .driver_info = 0, 862}, 863 864/* Microsoft Surface Ethernet Adapter (based on Realtek RTL8153) */ 865{ 866 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07c6, USB_CLASS_COMM, 867 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 868 .driver_info = 0, 869}, 870 871/* Microsoft Surface Ethernet Adapter (based on Realtek RTL8153B) */ 872{ 873 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x0927, USB_CLASS_COMM, 874 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 875 .driver_info = 0, 876}, 877 878/* TP-LINK UE300 USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */ 879{ 880 USB_DEVICE_AND_INTERFACE_INFO(TPLINK_VENDOR_ID, 0x0601, USB_CLASS_COMM, 881 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 882 .driver_info = 0, 883}, 884 885/* Aquantia AQtion USB to 5GbE Controller (based on AQC111U) */ 886{ 887 USB_DEVICE_AND_INTERFACE_INFO(AQUANTIA_VENDOR_ID, 0xc101, 888 USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, 889 USB_CDC_PROTO_NONE), 890 .driver_info = 0, 891}, 892 893/* ASIX USB 3.1 Gen1 to 5G Multi-Gigabit Ethernet Adapter(based on AQC111U) */ 894{ 895 USB_DEVICE_AND_INTERFACE_INFO(ASIX_VENDOR_ID, 0x2790, USB_CLASS_COMM, 896 USB_CDC_SUBCLASS_ETHERNET, 897 USB_CDC_PROTO_NONE), 898 .driver_info = 0, 899}, 900 901/* ASIX USB 3.1 Gen1 to 2.5G Multi-Gigabit Ethernet Adapter(based on AQC112U) */ 902{ 903 USB_DEVICE_AND_INTERFACE_INFO(ASIX_VENDOR_ID, 0x2791, USB_CLASS_COMM, 904 USB_CDC_SUBCLASS_ETHERNET, 905 USB_CDC_PROTO_NONE), 906 .driver_info = 0, 907}, 908 909/* USB-C 3.1 to 5GBASE-T Ethernet Adapter (based on AQC111U) */ 910{ 911 USB_DEVICE_AND_INTERFACE_INFO(0x20f4, 0xe05a, USB_CLASS_COMM, 912 USB_CDC_SUBCLASS_ETHERNET, 913 USB_CDC_PROTO_NONE), 914 .driver_info = 0, 915}, 916 917/* QNAP QNA-UC5G1T USB to 5GbE Adapter (based on AQC111U) */ 918{ 919 USB_DEVICE_AND_INTERFACE_INFO(0x1c04, 0x0015, USB_CLASS_COMM, 920 USB_CDC_SUBCLASS_ETHERNET, 921 USB_CDC_PROTO_NONE), 922 .driver_info = 0, 923}, 924 925/* WHITELIST!!! 926 * 927 * CDC Ether uses two interfaces, not necessarily consecutive. 928 * We match the main interface, ignoring the optional device 929 * class so we could handle devices that aren't exclusively 930 * CDC ether. 931 * 932 * NOTE: this match must come AFTER entries blacklisting devices 933 * because of bugs/quirks in a given product (like Zaurus, above). 934 */ 935{ 936 /* ZTE (Vodafone) K3805-Z */ 937 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1003, USB_CLASS_COMM, 938 USB_CDC_SUBCLASS_ETHERNET, 939 USB_CDC_PROTO_NONE), 940 .driver_info = (unsigned long)&wwan_info, 941}, { 942 /* ZTE (Vodafone) K3806-Z */ 943 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1015, USB_CLASS_COMM, 944 USB_CDC_SUBCLASS_ETHERNET, 945 USB_CDC_PROTO_NONE), 946 .driver_info = (unsigned long)&wwan_info, 947}, { 948 /* ZTE (Vodafone) K4510-Z */ 949 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1173, USB_CLASS_COMM, 950 USB_CDC_SUBCLASS_ETHERNET, 951 USB_CDC_PROTO_NONE), 952 .driver_info = (unsigned long)&wwan_info, 953}, { 954 /* ZTE (Vodafone) K3770-Z */ 955 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1177, USB_CLASS_COMM, 956 USB_CDC_SUBCLASS_ETHERNET, 957 USB_CDC_PROTO_NONE), 958 .driver_info = (unsigned long)&wwan_info, 959}, { 960 /* ZTE (Vodafone) K3772-Z */ 961 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1181, USB_CLASS_COMM, 962 USB_CDC_SUBCLASS_ETHERNET, 963 USB_CDC_PROTO_NONE), 964 .driver_info = (unsigned long)&wwan_info, 965}, { 966 /* Telit modules */ 967 USB_VENDOR_AND_INTERFACE_INFO(0x1bc7, USB_CLASS_COMM, 968 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 969 .driver_info = (kernel_ulong_t) &wwan_info, 970}, { 971 /* Dell DW5580 modules */ 972 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x81ba, USB_CLASS_COMM, 973 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 974 .driver_info = (kernel_ulong_t)&wwan_info, 975}, { 976 /* Huawei ME906 and ME909 */ 977 USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0x15c1, USB_CLASS_COMM, 978 USB_CDC_SUBCLASS_ETHERNET, 979 USB_CDC_PROTO_NONE), 980 .driver_info = (unsigned long)&wwan_info, 981}, { 982 /* ZTE modules */ 983 USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, USB_CLASS_COMM, 984 USB_CDC_SUBCLASS_ETHERNET, 985 USB_CDC_PROTO_NONE), 986 .driver_info = (unsigned long)&zte_cdc_info, 987}, { 988 /* U-blox TOBY-L2 */ 989 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1143, USB_CLASS_COMM, 990 USB_CDC_SUBCLASS_ETHERNET, 991 USB_CDC_PROTO_NONE), 992 .driver_info = (unsigned long)&wwan_info, 993}, { 994 /* U-blox SARA-U2 */ 995 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1104, USB_CLASS_COMM, 996 USB_CDC_SUBCLASS_ETHERNET, 997 USB_CDC_PROTO_NONE), 998 .driver_info = (unsigned long)&wwan_info, 999}, { 1000 /* Cinterion PLS8 modem by GEMALTO */ 1001 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0061, USB_CLASS_COMM, 1002 USB_CDC_SUBCLASS_ETHERNET, 1003 USB_CDC_PROTO_NONE), 1004 .driver_info = (unsigned long)&wwan_info, 1005}, { 1006 /* Cinterion AHS3 modem by GEMALTO */ 1007 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0055, USB_CLASS_COMM, 1008 USB_CDC_SUBCLASS_ETHERNET, 1009 USB_CDC_PROTO_NONE), 1010 .driver_info = (unsigned long)&wwan_info, 1011}, { 1012 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, 1013 USB_CDC_PROTO_NONE), 1014 .driver_info = (unsigned long) &cdc_info, 1015}, { 1016 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM, 1017 USB_CDC_PROTO_NONE), 1018 .driver_info = (unsigned long)&wwan_info, 1019 1020}, { 1021 /* Various Huawei modems with a network port like the UMG1831 */ 1022 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_COMM, 1023 USB_CDC_SUBCLASS_ETHERNET, 255), 1024 .driver_info = (unsigned long)&wwan_info, 1025}, 1026 { }, /* END */ 1027}; 1028MODULE_DEVICE_TABLE(usb, products); 1029 1030static struct usb_driver cdc_driver = { 1031 .name = "cdc_ether", 1032 .id_table = products, 1033 .probe = usbnet_probe, 1034 .disconnect = usbnet_disconnect, 1035 .suspend = usbnet_suspend, 1036 .resume = usbnet_resume, 1037 .reset_resume = usbnet_resume, 1038 .supports_autosuspend = 1, 1039 .disable_hub_initiated_lpm = 1, 1040}; 1041 1042module_usb_driver(cdc_driver); 1043 1044MODULE_AUTHOR("David Brownell"); 1045MODULE_DESCRIPTION("USB CDC Ethernet devices"); 1046MODULE_LICENSE("GPL"); 1047