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 /* We need to override usbnet_*_link_ksettings in bind() */ 96 static const struct ethtool_ops cdc_ether_ethtool_ops = { 97 .get_link = usbnet_get_link, 98 .nway_reset = usbnet_nway_reset, 99 .get_drvinfo = usbnet_get_drvinfo, 100 .get_msglevel = usbnet_get_msglevel, 101 .set_msglevel = usbnet_set_msglevel, 102 .get_ts_info = ethtool_op_get_ts_info, 103 .get_link_ksettings = usbnet_get_link_ksettings_internal, 104 .set_link_ksettings = NULL, 105 }; 106 107 /* probes control interface, claims data interface, collects the bulk 108 * endpoints, activates data interface (if needed), maybe sets MTU. 109 * all pure cdc, except for certain firmware workarounds, and knowing 110 * that rndis uses one different rule. 111 */ 112 int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf) 113 { 114 u8 *buf = intf->cur_altsetting->extra; 115 int len = intf->cur_altsetting->extralen; 116 struct usb_interface_descriptor *d; 117 struct cdc_state *info = (void *) &dev->data; 118 int status = -ENODEV; 119 int rndis; 120 bool android_rndis_quirk = false; 121 struct usb_driver *driver = driver_of(intf); 122 struct usb_cdc_parsed_header header; 123 124 if (sizeof(dev->data) < sizeof(*info)) 125 return -EDOM; 126 127 /* expect strict spec conformance for the descriptors, but 128 * cope with firmware which stores them in the wrong place 129 */ 130 if (len == 0 && dev->udev->actconfig->extralen) { 131 /* Motorola SB4100 (and others: Brad Hards says it's 132 * from a Broadcom design) put CDC descriptors here 133 */ 134 buf = dev->udev->actconfig->extra; 135 len = dev->udev->actconfig->extralen; 136 dev_dbg(&intf->dev, "CDC descriptors on config\n"); 137 } 138 139 /* Maybe CDC descriptors are after the endpoint? This bug has 140 * been seen on some 2Wire Inc RNDIS-ish products. 141 */ 142 if (len == 0) { 143 struct usb_host_endpoint *hep; 144 145 hep = intf->cur_altsetting->endpoint; 146 if (hep) { 147 buf = hep->extra; 148 len = hep->extralen; 149 } 150 if (len) 151 dev_dbg(&intf->dev, 152 "CDC descriptors on endpoint\n"); 153 } 154 155 /* this assumes that if there's a non-RNDIS vendor variant 156 * of cdc-acm, it'll fail RNDIS requests cleanly. 157 */ 158 rndis = (is_rndis(&intf->cur_altsetting->desc) || 159 is_activesync(&intf->cur_altsetting->desc) || 160 is_wireless_rndis(&intf->cur_altsetting->desc) || 161 is_novatel_rndis(&intf->cur_altsetting->desc)); 162 163 memset(info, 0, sizeof(*info)); 164 info->control = intf; 165 166 cdc_parse_cdc_header(&header, intf, buf, len); 167 168 info->u = header.usb_cdc_union_desc; 169 info->header = header.usb_cdc_header_desc; 170 info->ether = header.usb_cdc_ether_desc; 171 if (!info->u) { 172 if (rndis) { 173 goto skip; 174 } else { 175 /* in that case a quirk is mandatory */ 176 dev_err(&dev->udev->dev, "No union descriptors\n"); 177 goto bad_desc; 178 } 179 } 180 /* we need a master/control interface (what we're 181 * probed with) and a slave/data interface; union 182 * descriptors sort this all out. 183 */ 184 info->control = usb_ifnum_to_if(dev->udev, info->u->bMasterInterface0); 185 info->data = usb_ifnum_to_if(dev->udev, 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 dev_err(&intf->dev, "bad CDC descriptors\n"); 199 goto bad_desc; 200 } 201 if (info->control != intf) { 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 dev_err(&intf->dev, "bogus CDC Union\n"); 210 goto bad_desc; 211 } 212 } 213 214 /* some devices merge these - skip class check */ 215 if (info->control == info->data) 216 goto skip; 217 218 /* a data interface altsetting does the real i/o */ 219 d = &info->data->cur_altsetting->desc; 220 if (d->bInterfaceClass != USB_CLASS_CDC_DATA) { 221 dev_err(&intf->dev, "slave class %u\n", d->bInterfaceClass); 222 goto bad_desc; 223 } 224 skip: 225 /* Communication class functions with bmCapabilities are not 226 * RNDIS. But some Wireless class RNDIS functions use 227 * bmCapabilities for their own purpose. The failsafe is 228 * therefore applied only to Communication class RNDIS 229 * functions. The rndis test is redundant, but a cheap 230 * optimization. 231 */ 232 if (rndis && is_rndis(&intf->cur_altsetting->desc) && 233 header.usb_cdc_acm_descriptor && 234 header.usb_cdc_acm_descriptor->bmCapabilities) { 235 dev_err(&intf->dev, 236 "ACM capabilities %02x, not really RNDIS?\n", 237 header.usb_cdc_acm_descriptor->bmCapabilities); 238 goto bad_desc; 239 } 240 241 if (header.usb_cdc_ether_desc && info->ether->wMaxSegmentSize) { 242 dev->hard_mtu = le16_to_cpu(info->ether->wMaxSegmentSize); 243 /* because of Zaurus, we may be ignoring the host 244 * side link address we were given. 245 */ 246 } 247 248 if (header.usb_cdc_mdlm_desc && 249 memcmp(header.usb_cdc_mdlm_desc->bGUID, mbm_guid, 16)) { 250 dev_err(&intf->dev, "GUID doesn't match\n"); 251 goto bad_desc; 252 } 253 254 if (header.usb_cdc_mdlm_detail_desc && 255 header.usb_cdc_mdlm_detail_desc->bLength < 256 (sizeof(struct usb_cdc_mdlm_detail_desc) + 1)) { 257 dev_err(&intf->dev, "Descriptor too short\n"); 258 goto bad_desc; 259 } 260 261 262 263 /* Microsoft ActiveSync based and some regular RNDIS devices lack the 264 * CDC descriptors, so we'll hard-wire the interfaces and not check 265 * for descriptors. 266 * 267 * Some Android RNDIS devices have a CDC Union descriptor pointing 268 * to non-existing interfaces. Ignore that and attempt the same 269 * hard-wired 0 and 1 interfaces. 270 */ 271 if (rndis && (!info->u || android_rndis_quirk)) { 272 info->control = usb_ifnum_to_if(dev->udev, 0); 273 info->data = usb_ifnum_to_if(dev->udev, 1); 274 if (!info->control || !info->data || info->control != intf) { 275 dev_err(&intf->dev, 276 "rndis: master #0/%p slave #1/%p\n", 277 info->control, 278 info->data); 279 goto bad_desc; 280 } 281 282 } else if (!info->header || (!rndis && !info->ether)) { 283 dev_err(&intf->dev, "missing cdc %s%s%sdescriptor\n", 284 info->header ? "" : "header ", 285 info->u ? "" : "union ", 286 info->ether ? "" : "ether "); 287 goto bad_desc; 288 } 289 290 /* claim data interface and set it up ... with side effects. 291 * network traffic can't flow until an altsetting is enabled. 292 */ 293 if (info->data != info->control) { 294 status = usb_driver_claim_interface(driver, info->data, dev); 295 if (status < 0) { 296 dev_err(&intf->dev, "Second interface unclaimable\n"); 297 goto bad_desc; 298 } 299 } 300 status = usbnet_get_endpoints(dev, info->data); 301 if (status < 0) { 302 dev_dbg(&intf->dev, "Mandatory endpoints missing\n"); 303 goto bail_out_and_release; 304 } 305 306 /* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */ 307 if (info->data != info->control) 308 dev->status = NULL; 309 if (info->control->cur_altsetting->desc.bNumEndpoints == 1) { 310 struct usb_endpoint_descriptor *desc; 311 312 dev->status = &info->control->cur_altsetting->endpoint[0]; 313 desc = &dev->status->desc; 314 if (!usb_endpoint_is_int_in(desc) || 315 (le16_to_cpu(desc->wMaxPacketSize) 316 < sizeof(struct usb_cdc_notification)) || 317 !desc->bInterval) { 318 dev_dbg(&intf->dev, "bad notification endpoint\n"); 319 dev->status = NULL; 320 } 321 } 322 if (rndis && !dev->status) { 323 dev_err(&intf->dev, "missing RNDIS status endpoint\n"); 324 status = -ENODEV; 325 goto bail_out_and_release; 326 } 327 328 /* override ethtool_ops */ 329 dev->net->ethtool_ops = &cdc_ether_ethtool_ops; 330 331 return 0; 332 333 bail_out_and_release: 334 usb_set_intfdata(info->data, NULL); 335 if (info->data != info->control) 336 usb_driver_release_interface(driver, info->data); 337 bad_desc: 338 return status; 339 } 340 EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind); 341 342 343 /* like usbnet_generic_cdc_bind() but handles filter initialization 344 * correctly 345 */ 346 int usbnet_ether_cdc_bind(struct usbnet *dev, struct usb_interface *intf) 347 { 348 int rv; 349 350 rv = usbnet_generic_cdc_bind(dev, intf); 351 if (rv < 0) 352 goto bail_out; 353 354 /* Some devices don't initialise properly. In particular 355 * the packet filter is not reset. There are devices that 356 * don't do reset all the way. So the packet filter should 357 * be set to a sane initial value. 358 */ 359 usbnet_cdc_update_filter(dev); 360 361 bail_out: 362 return rv; 363 } 364 EXPORT_SYMBOL_GPL(usbnet_ether_cdc_bind); 365 366 void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf) 367 { 368 struct cdc_state *info = (void *) &dev->data; 369 struct usb_driver *driver = driver_of(intf); 370 371 /* combined interface - nothing to do */ 372 if (info->data == info->control) 373 return; 374 375 /* disconnect master --> disconnect slave */ 376 if (intf == info->control && info->data) { 377 /* ensure immediate exit from usbnet_disconnect */ 378 usb_set_intfdata(info->data, NULL); 379 usb_driver_release_interface(driver, info->data); 380 info->data = NULL; 381 } 382 383 /* and vice versa (just in case) */ 384 else if (intf == info->data && info->control) { 385 /* ensure immediate exit from usbnet_disconnect */ 386 usb_set_intfdata(info->control, NULL); 387 usb_driver_release_interface(driver, info->control); 388 info->control = NULL; 389 } 390 } 391 EXPORT_SYMBOL_GPL(usbnet_cdc_unbind); 392 393 /* Communications Device Class, Ethernet Control model 394 * 395 * Takes two interfaces. The DATA interface is inactive till an altsetting 396 * is selected. Configuration data includes class descriptors. There's 397 * an optional status endpoint on the control interface. 398 * 399 * This should interop with whatever the 2.4 "CDCEther.c" driver 400 * (by Brad Hards) talked with, with more functionality. 401 */ 402 403 static void speed_change(struct usbnet *dev, __le32 *speeds) 404 { 405 dev->tx_speed = __le32_to_cpu(speeds[0]); 406 dev->rx_speed = __le32_to_cpu(speeds[1]); 407 } 408 409 void usbnet_cdc_status(struct usbnet *dev, struct urb *urb) 410 { 411 struct usb_cdc_notification *event; 412 413 if (urb->actual_length < sizeof(*event)) 414 return; 415 416 /* SPEED_CHANGE can get split into two 8-byte packets */ 417 if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) { 418 speed_change(dev, (__le32 *) urb->transfer_buffer); 419 return; 420 } 421 422 event = urb->transfer_buffer; 423 switch (event->bNotificationType) { 424 case USB_CDC_NOTIFY_NETWORK_CONNECTION: 425 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n", 426 event->wValue ? "on" : "off"); 427 if (netif_carrier_ok(dev->net) != !!event->wValue) 428 usbnet_link_change(dev, !!event->wValue, 0); 429 break; 430 case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */ 431 netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n", 432 urb->actual_length); 433 if (urb->actual_length != (sizeof(*event) + 8)) 434 set_bit(EVENT_STS_SPLIT, &dev->flags); 435 else 436 speed_change(dev, (__le32 *) &event[1]); 437 break; 438 /* USB_CDC_NOTIFY_RESPONSE_AVAILABLE can happen too (e.g. RNDIS), 439 * but there are no standard formats for the response data. 440 */ 441 default: 442 netdev_err(dev->net, "CDC: unexpected notification %02x!\n", 443 event->bNotificationType); 444 break; 445 } 446 } 447 EXPORT_SYMBOL_GPL(usbnet_cdc_status); 448 449 int usbnet_cdc_bind(struct usbnet *dev, struct usb_interface *intf) 450 { 451 int status; 452 struct cdc_state *info = (void *) &dev->data; 453 454 BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) 455 < sizeof(struct cdc_state))); 456 457 status = usbnet_ether_cdc_bind(dev, intf); 458 if (status < 0) 459 return status; 460 461 status = usbnet_get_ethernet_addr(dev, info->ether->iMACAddress); 462 if (status < 0) { 463 usb_set_intfdata(info->data, NULL); 464 usb_driver_release_interface(driver_of(intf), info->data); 465 return status; 466 } 467 468 return 0; 469 } 470 EXPORT_SYMBOL_GPL(usbnet_cdc_bind); 471 472 static int usbnet_cdc_zte_bind(struct usbnet *dev, struct usb_interface *intf) 473 { 474 int status = usbnet_cdc_bind(dev, intf); 475 476 if (!status && (dev->net->dev_addr[0] & 0x02)) 477 eth_hw_addr_random(dev->net); 478 479 return status; 480 } 481 482 /* Make sure packets have correct destination MAC address 483 * 484 * A firmware bug observed on some devices (ZTE MF823/831/910) is that the 485 * device sends packets with a static, bogus, random MAC address (event if 486 * device MAC address has been updated). Always set MAC address to that of the 487 * device. 488 */ 489 int usbnet_cdc_zte_rx_fixup(struct usbnet *dev, struct sk_buff *skb) 490 { 491 if (skb->len < ETH_HLEN || !(skb->data[0] & 0x02)) 492 return 1; 493 494 skb_reset_mac_header(skb); 495 ether_addr_copy(eth_hdr(skb)->h_dest, dev->net->dev_addr); 496 497 return 1; 498 } 499 EXPORT_SYMBOL_GPL(usbnet_cdc_zte_rx_fixup); 500 501 /* Ensure correct link state 502 * 503 * Some devices (ZTE MF823/831/910) export two carrier on notifications when 504 * connected. This causes the link state to be incorrect. Work around this by 505 * always setting the state to off, then on. 506 */ 507 static void usbnet_cdc_zte_status(struct usbnet *dev, struct urb *urb) 508 { 509 struct usb_cdc_notification *event; 510 511 if (urb->actual_length < sizeof(*event)) 512 return; 513 514 event = urb->transfer_buffer; 515 516 if (event->bNotificationType != USB_CDC_NOTIFY_NETWORK_CONNECTION) { 517 usbnet_cdc_status(dev, urb); 518 return; 519 } 520 521 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n", 522 event->wValue ? "on" : "off"); 523 524 if (event->wValue && 525 netif_carrier_ok(dev->net)) 526 netif_carrier_off(dev->net); 527 528 usbnet_link_change(dev, !!event->wValue, 0); 529 } 530 531 static const struct driver_info cdc_info = { 532 .description = "CDC Ethernet Device", 533 .flags = FLAG_ETHER | FLAG_POINTTOPOINT, 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 static const struct driver_info zte_cdc_info = { 542 .description = "ZTE CDC Ethernet Device", 543 .flags = FLAG_ETHER | FLAG_POINTTOPOINT, 544 .bind = usbnet_cdc_zte_bind, 545 .unbind = usbnet_cdc_unbind, 546 .status = usbnet_cdc_zte_status, 547 .set_rx_mode = usbnet_cdc_update_filter, 548 .manage_power = usbnet_manage_power, 549 .rx_fixup = usbnet_cdc_zte_rx_fixup, 550 }; 551 552 static const struct driver_info wwan_info = { 553 .description = "Mobile Broadband Network Device", 554 .flags = FLAG_WWAN, 555 .bind = usbnet_cdc_bind, 556 .unbind = usbnet_cdc_unbind, 557 .status = usbnet_cdc_status, 558 .set_rx_mode = usbnet_cdc_update_filter, 559 .manage_power = usbnet_manage_power, 560 }; 561 562 /*-------------------------------------------------------------------------*/ 563 564 #define HUAWEI_VENDOR_ID 0x12D1 565 #define NOVATEL_VENDOR_ID 0x1410 566 #define ZTE_VENDOR_ID 0x19D2 567 #define DELL_VENDOR_ID 0x413C 568 #define REALTEK_VENDOR_ID 0x0bda 569 #define SAMSUNG_VENDOR_ID 0x04e8 570 #define LENOVO_VENDOR_ID 0x17ef 571 #define LINKSYS_VENDOR_ID 0x13b1 572 #define NVIDIA_VENDOR_ID 0x0955 573 #define HP_VENDOR_ID 0x03f0 574 #define MICROSOFT_VENDOR_ID 0x045e 575 #define UBLOX_VENDOR_ID 0x1546 576 #define TPLINK_VENDOR_ID 0x2357 577 #define AQUANTIA_VENDOR_ID 0x2eca 578 #define ASIX_VENDOR_ID 0x0b95 579 580 static const struct usb_device_id products[] = { 581 /* BLACKLIST !! 582 * 583 * First blacklist any products that are egregiously nonconformant 584 * with the CDC Ethernet specs. Minor braindamage we cope with; when 585 * they're not even trying, needing a separate driver is only the first 586 * of the differences to show up. 587 */ 588 589 #define ZAURUS_MASTER_INTERFACE \ 590 .bInterfaceClass = USB_CLASS_COMM, \ 591 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \ 592 .bInterfaceProtocol = USB_CDC_PROTO_NONE 593 594 #define ZAURUS_FAKE_INTERFACE \ 595 .bInterfaceClass = USB_CLASS_COMM, \ 596 .bInterfaceSubClass = USB_CDC_SUBCLASS_MDLM, \ 597 .bInterfaceProtocol = USB_CDC_PROTO_NONE 598 599 /* SA-1100 based Sharp Zaurus ("collie"), or compatible; 600 * wire-incompatible with true CDC Ethernet implementations. 601 * (And, it seems, needlessly so...) 602 */ 603 { 604 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 605 | USB_DEVICE_ID_MATCH_DEVICE, 606 .idVendor = 0x04DD, 607 .idProduct = 0x8004, 608 ZAURUS_MASTER_INTERFACE, 609 .driver_info = 0, 610 }, 611 612 /* PXA-25x based Sharp Zaurii. Note that it seems some of these 613 * (later models especially) may have shipped only with firmware 614 * advertising false "CDC MDLM" compatibility ... but we're not 615 * clear which models did that, so for now let's assume the worst. 616 */ 617 { 618 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 619 | USB_DEVICE_ID_MATCH_DEVICE, 620 .idVendor = 0x04DD, 621 .idProduct = 0x8005, /* A-300 */ 622 ZAURUS_MASTER_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 = 0x8005, /* A-300 */ 629 ZAURUS_FAKE_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 = 0x8006, /* B-500/SL-5600 */ 636 ZAURUS_MASTER_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 = 0x8006, /* B-500/SL-5600 */ 643 ZAURUS_FAKE_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 = 0x8007, /* C-700 */ 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 = 0x8007, /* C-700 */ 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 .idProduct = 0x9031, /* C-750 C-760 */ 664 ZAURUS_MASTER_INTERFACE, 665 .driver_info = 0, 666 }, { 667 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 668 | USB_DEVICE_ID_MATCH_DEVICE, 669 .idVendor = 0x04DD, 670 .idProduct = 0x9032, /* SL-6000 */ 671 ZAURUS_MASTER_INTERFACE, 672 .driver_info = 0, 673 }, { 674 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 675 | USB_DEVICE_ID_MATCH_DEVICE, 676 .idVendor = 0x04DD, 677 .idProduct = 0x9032, /* SL-6000 */ 678 ZAURUS_FAKE_INTERFACE, 679 .driver_info = 0, 680 }, { 681 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 682 | USB_DEVICE_ID_MATCH_DEVICE, 683 .idVendor = 0x04DD, 684 /* reported with some C860 units */ 685 .idProduct = 0x9050, /* C-860 */ 686 ZAURUS_MASTER_INTERFACE, 687 .driver_info = 0, 688 }, 689 690 /* Olympus has some models with a Zaurus-compatible option. 691 * R-1000 uses a FreeScale i.MXL cpu (ARMv4T) 692 */ 693 { 694 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO 695 | USB_DEVICE_ID_MATCH_DEVICE, 696 .idVendor = 0x07B4, 697 .idProduct = 0x0F02, /* R-1000 */ 698 ZAURUS_MASTER_INTERFACE, 699 .driver_info = 0, 700 }, 701 702 /* LG Electronics VL600 wants additional headers on every frame */ 703 { 704 USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM, 705 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 706 .driver_info = 0, 707 }, 708 709 /* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */ 710 { 711 USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM, 712 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), 713 .driver_info = 0, 714 }, 715 716 /* Novatel USB551L and MC551 - handled by qmi_wwan */ 717 { 718 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0xB001, USB_CLASS_COMM, 719 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 720 .driver_info = 0, 721 }, 722 723 /* Novatel E362 - handled by qmi_wwan */ 724 { 725 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9010, USB_CLASS_COMM, 726 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 727 .driver_info = 0, 728 }, 729 730 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */ 731 { 732 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8195, USB_CLASS_COMM, 733 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 734 .driver_info = 0, 735 }, 736 737 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */ 738 { 739 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8196, USB_CLASS_COMM, 740 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 741 .driver_info = 0, 742 }, 743 744 /* Dell Wireless 5804 (Novatel E371) - handled by qmi_wwan */ 745 { 746 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x819b, USB_CLASS_COMM, 747 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 748 .driver_info = 0, 749 }, 750 751 /* Novatel Expedite E371 - handled by qmi_wwan */ 752 { 753 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9011, USB_CLASS_COMM, 754 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 755 .driver_info = 0, 756 }, 757 758 /* HP lt2523 (Novatel E371) - handled by qmi_wwan */ 759 { 760 USB_DEVICE_AND_INTERFACE_INFO(HP_VENDOR_ID, 0x421d, USB_CLASS_COMM, 761 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 762 .driver_info = 0, 763 }, 764 765 /* AnyDATA ADU960S - handled by qmi_wwan */ 766 { 767 USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, USB_CLASS_COMM, 768 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 769 .driver_info = 0, 770 }, 771 772 /* Huawei E1820 - handled by qmi_wwan */ 773 { 774 USB_DEVICE_INTERFACE_NUMBER(HUAWEI_VENDOR_ID, 0x14ac, 1), 775 .driver_info = 0, 776 }, 777 778 /* Realtek RTL8153 Based USB 3.0 Ethernet Adapters */ 779 { 780 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8153, USB_CLASS_COMM, 781 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 782 .driver_info = 0, 783 }, 784 785 /* Lenovo Powered USB-C Travel Hub (4X90S92381, based on Realtek RTL8153) */ 786 { 787 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x721e, USB_CLASS_COMM, 788 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 789 .driver_info = 0, 790 }, 791 792 /* Lenovo ThinkPad Hybrid USB-C with USB-A Dock (40af0135eu, based on Realtek RTL8153) */ 793 { 794 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0xa359, USB_CLASS_COMM, 795 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 796 .driver_info = 0, 797 }, 798 799 /* Aquantia AQtion USB to 5GbE Controller (based on AQC111U) */ 800 { 801 USB_DEVICE_AND_INTERFACE_INFO(AQUANTIA_VENDOR_ID, 0xc101, 802 USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, 803 USB_CDC_PROTO_NONE), 804 .driver_info = 0, 805 }, 806 807 /* ASIX USB 3.1 Gen1 to 5G Multi-Gigabit Ethernet Adapter(based on AQC111U) */ 808 { 809 USB_DEVICE_AND_INTERFACE_INFO(ASIX_VENDOR_ID, 0x2790, USB_CLASS_COMM, 810 USB_CDC_SUBCLASS_ETHERNET, 811 USB_CDC_PROTO_NONE), 812 .driver_info = 0, 813 }, 814 815 /* ASIX USB 3.1 Gen1 to 2.5G Multi-Gigabit Ethernet Adapter(based on AQC112U) */ 816 { 817 USB_DEVICE_AND_INTERFACE_INFO(ASIX_VENDOR_ID, 0x2791, USB_CLASS_COMM, 818 USB_CDC_SUBCLASS_ETHERNET, 819 USB_CDC_PROTO_NONE), 820 .driver_info = 0, 821 }, 822 823 /* USB-C 3.1 to 5GBASE-T Ethernet Adapter (based on AQC111U) */ 824 { 825 USB_DEVICE_AND_INTERFACE_INFO(0x20f4, 0xe05a, USB_CLASS_COMM, 826 USB_CDC_SUBCLASS_ETHERNET, 827 USB_CDC_PROTO_NONE), 828 .driver_info = 0, 829 }, 830 831 /* QNAP QNA-UC5G1T USB to 5GbE Adapter (based on AQC111U) */ 832 { 833 USB_DEVICE_AND_INTERFACE_INFO(0x1c04, 0x0015, USB_CLASS_COMM, 834 USB_CDC_SUBCLASS_ETHERNET, 835 USB_CDC_PROTO_NONE), 836 .driver_info = 0, 837 }, 838 839 /* WHITELIST!!! 840 * 841 * CDC Ether uses two interfaces, not necessarily consecutive. 842 * We match the main interface, ignoring the optional device 843 * class so we could handle devices that aren't exclusively 844 * CDC ether. 845 * 846 * NOTE: this match must come AFTER entries blacklisting devices 847 * because of bugs/quirks in a given product (like Zaurus, above). 848 */ 849 { 850 /* ZTE (Vodafone) K3805-Z */ 851 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1003, USB_CLASS_COMM, 852 USB_CDC_SUBCLASS_ETHERNET, 853 USB_CDC_PROTO_NONE), 854 .driver_info = (unsigned long)&wwan_info, 855 }, { 856 /* ZTE (Vodafone) K3806-Z */ 857 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1015, USB_CLASS_COMM, 858 USB_CDC_SUBCLASS_ETHERNET, 859 USB_CDC_PROTO_NONE), 860 .driver_info = (unsigned long)&wwan_info, 861 }, { 862 /* ZTE (Vodafone) K4510-Z */ 863 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1173, USB_CLASS_COMM, 864 USB_CDC_SUBCLASS_ETHERNET, 865 USB_CDC_PROTO_NONE), 866 .driver_info = (unsigned long)&wwan_info, 867 }, { 868 /* ZTE (Vodafone) K3770-Z */ 869 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1177, USB_CLASS_COMM, 870 USB_CDC_SUBCLASS_ETHERNET, 871 USB_CDC_PROTO_NONE), 872 .driver_info = (unsigned long)&wwan_info, 873 }, { 874 /* ZTE (Vodafone) K3772-Z */ 875 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1181, USB_CLASS_COMM, 876 USB_CDC_SUBCLASS_ETHERNET, 877 USB_CDC_PROTO_NONE), 878 .driver_info = (unsigned long)&wwan_info, 879 }, { 880 /* Telit modules */ 881 USB_VENDOR_AND_INTERFACE_INFO(0x1bc7, USB_CLASS_COMM, 882 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 883 .driver_info = (kernel_ulong_t) &wwan_info, 884 }, { 885 /* Dell DW5580 modules */ 886 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x81ba, USB_CLASS_COMM, 887 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), 888 .driver_info = (kernel_ulong_t)&wwan_info, 889 }, { 890 /* Huawei ME906 and ME909 */ 891 USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0x15c1, USB_CLASS_COMM, 892 USB_CDC_SUBCLASS_ETHERNET, 893 USB_CDC_PROTO_NONE), 894 .driver_info = (unsigned long)&wwan_info, 895 }, { 896 /* ZTE modules */ 897 USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, USB_CLASS_COMM, 898 USB_CDC_SUBCLASS_ETHERNET, 899 USB_CDC_PROTO_NONE), 900 .driver_info = (unsigned long)&zte_cdc_info, 901 }, { 902 /* U-blox TOBY-L2 */ 903 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1143, USB_CLASS_COMM, 904 USB_CDC_SUBCLASS_ETHERNET, 905 USB_CDC_PROTO_NONE), 906 .driver_info = (unsigned long)&wwan_info, 907 }, { 908 /* U-blox SARA-U2 */ 909 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1104, USB_CLASS_COMM, 910 USB_CDC_SUBCLASS_ETHERNET, 911 USB_CDC_PROTO_NONE), 912 .driver_info = (unsigned long)&wwan_info, 913 }, { 914 /* U-blox LARA-R6 01B */ 915 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1313, USB_CLASS_COMM, 916 USB_CDC_SUBCLASS_ETHERNET, 917 USB_CDC_PROTO_NONE), 918 .driver_info = (unsigned long)&wwan_info, 919 }, { 920 /* U-blox LARA-L6 */ 921 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1343, USB_CLASS_COMM, 922 USB_CDC_SUBCLASS_ETHERNET, 923 USB_CDC_PROTO_NONE), 924 .driver_info = (unsigned long)&wwan_info, 925 }, { 926 /* Cinterion PLS8 modem by GEMALTO */ 927 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0061, USB_CLASS_COMM, 928 USB_CDC_SUBCLASS_ETHERNET, 929 USB_CDC_PROTO_NONE), 930 .driver_info = (unsigned long)&wwan_info, 931 }, { 932 /* Cinterion AHS3 modem by GEMALTO */ 933 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0055, USB_CLASS_COMM, 934 USB_CDC_SUBCLASS_ETHERNET, 935 USB_CDC_PROTO_NONE), 936 .driver_info = (unsigned long)&wwan_info, 937 }, { 938 /* Cinterion PLS62-W modem by GEMALTO/THALES */ 939 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x005b, USB_CLASS_COMM, 940 USB_CDC_SUBCLASS_ETHERNET, 941 USB_CDC_PROTO_NONE), 942 .driver_info = (unsigned long)&wwan_info, 943 }, { 944 /* Cinterion PLS83/PLS63 modem by GEMALTO/THALES */ 945 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0069, USB_CLASS_COMM, 946 USB_CDC_SUBCLASS_ETHERNET, 947 USB_CDC_PROTO_NONE), 948 .driver_info = (unsigned long)&wwan_info, 949 }, { 950 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, 951 USB_CDC_PROTO_NONE), 952 .driver_info = (unsigned long) &cdc_info, 953 }, { 954 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM, 955 USB_CDC_PROTO_NONE), 956 .driver_info = (unsigned long)&wwan_info, 957 958 }, { 959 /* Various Huawei modems with a network port like the UMG1831 */ 960 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_COMM, 961 USB_CDC_SUBCLASS_ETHERNET, 255), 962 .driver_info = (unsigned long)&wwan_info, 963 }, 964 { }, /* END */ 965 }; 966 MODULE_DEVICE_TABLE(usb, products); 967 968 static struct usb_driver cdc_driver = { 969 .name = "cdc_ether", 970 .id_table = products, 971 .probe = usbnet_probe, 972 .disconnect = usbnet_disconnect, 973 .suspend = usbnet_suspend, 974 .resume = usbnet_resume, 975 .reset_resume = usbnet_resume, 976 .supports_autosuspend = 1, 977 .disable_hub_initiated_lpm = 1, 978 }; 979 980 module_usb_driver(cdc_driver); 981 982 MODULE_AUTHOR("David Brownell"); 983 MODULE_DESCRIPTION("USB CDC Ethernet devices"); 984 MODULE_LICENSE("GPL"); 985