1 /* 2 * Copyright (c) 2012 Bjørn Mork <bjorn@mork.no> 3 * 4 * The probing code is heavily inspired by cdc_ether, which is: 5 * Copyright (C) 2003-2005 by David Brownell 6 * Copyright (C) 2006 by Ole Andre Vadla Ravnas (ActiveSync) 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License 10 * version 2 as published by the Free Software Foundation. 11 */ 12 13 #include <linux/module.h> 14 #include <linux/sched/signal.h> 15 #include <linux/netdevice.h> 16 #include <linux/ethtool.h> 17 #include <linux/etherdevice.h> 18 #include <linux/if_arp.h> 19 #include <linux/mii.h> 20 #include <linux/rtnetlink.h> 21 #include <linux/usb.h> 22 #include <linux/usb/cdc.h> 23 #include <linux/usb/usbnet.h> 24 #include <linux/usb/cdc-wdm.h> 25 #include <linux/u64_stats_sync.h> 26 27 /* This driver supports wwan (3G/LTE/?) devices using a vendor 28 * specific management protocol called Qualcomm MSM Interface (QMI) - 29 * in addition to the more common AT commands over serial interface 30 * management 31 * 32 * QMI is wrapped in CDC, using CDC encapsulated commands on the 33 * control ("master") interface of a two-interface CDC Union 34 * resembling standard CDC ECM. The devices do not use the control 35 * interface for any other CDC messages. Most likely because the 36 * management protocol is used in place of the standard CDC 37 * notifications NOTIFY_NETWORK_CONNECTION and NOTIFY_SPEED_CHANGE 38 * 39 * Alternatively, control and data functions can be combined in a 40 * single USB interface. 41 * 42 * Handling a protocol like QMI is out of the scope for any driver. 43 * It is exported as a character device using the cdc-wdm driver as 44 * a subdriver, enabling userspace applications ("modem managers") to 45 * handle it. 46 * 47 * These devices may alternatively/additionally be configured using AT 48 * commands on a serial interface 49 */ 50 51 /* driver specific data */ 52 struct qmi_wwan_state { 53 struct usb_driver *subdriver; 54 atomic_t pmcount; 55 unsigned long flags; 56 struct usb_interface *control; 57 struct usb_interface *data; 58 }; 59 60 enum qmi_wwan_flags { 61 QMI_WWAN_FLAG_RAWIP = 1 << 0, 62 QMI_WWAN_FLAG_MUX = 1 << 1, 63 }; 64 65 enum qmi_wwan_quirks { 66 QMI_WWAN_QUIRK_DTR = 1 << 0, /* needs "set DTR" request */ 67 QMI_WWAN_QUIRK_QUECTEL_DYNCFG = 1 << 1, /* check num. endpoints */ 68 }; 69 70 struct qmimux_hdr { 71 u8 pad; 72 u8 mux_id; 73 __be16 pkt_len; 74 }; 75 76 struct qmimux_priv { 77 struct net_device *real_dev; 78 u8 mux_id; 79 struct pcpu_sw_netstats __percpu *stats64; 80 }; 81 82 static int qmimux_open(struct net_device *dev) 83 { 84 struct qmimux_priv *priv = netdev_priv(dev); 85 struct net_device *real_dev = priv->real_dev; 86 87 if (!(priv->real_dev->flags & IFF_UP)) 88 return -ENETDOWN; 89 90 if (netif_carrier_ok(real_dev)) 91 netif_carrier_on(dev); 92 return 0; 93 } 94 95 static int qmimux_stop(struct net_device *dev) 96 { 97 netif_carrier_off(dev); 98 return 0; 99 } 100 101 static netdev_tx_t qmimux_start_xmit(struct sk_buff *skb, struct net_device *dev) 102 { 103 struct qmimux_priv *priv = netdev_priv(dev); 104 unsigned int len = skb->len; 105 struct qmimux_hdr *hdr; 106 netdev_tx_t ret; 107 108 hdr = skb_push(skb, sizeof(struct qmimux_hdr)); 109 hdr->pad = 0; 110 hdr->mux_id = priv->mux_id; 111 hdr->pkt_len = cpu_to_be16(len); 112 skb->dev = priv->real_dev; 113 ret = dev_queue_xmit(skb); 114 115 if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) { 116 struct pcpu_sw_netstats *stats64 = this_cpu_ptr(priv->stats64); 117 118 u64_stats_update_begin(&stats64->syncp); 119 stats64->tx_packets++; 120 stats64->tx_bytes += len; 121 u64_stats_update_end(&stats64->syncp); 122 } else { 123 dev->stats.tx_dropped++; 124 } 125 126 return ret; 127 } 128 129 static void qmimux_get_stats64(struct net_device *net, 130 struct rtnl_link_stats64 *stats) 131 { 132 struct qmimux_priv *priv = netdev_priv(net); 133 unsigned int start; 134 int cpu; 135 136 netdev_stats_to_stats64(stats, &net->stats); 137 138 for_each_possible_cpu(cpu) { 139 struct pcpu_sw_netstats *stats64; 140 u64 rx_packets, rx_bytes; 141 u64 tx_packets, tx_bytes; 142 143 stats64 = per_cpu_ptr(priv->stats64, cpu); 144 145 do { 146 start = u64_stats_fetch_begin_irq(&stats64->syncp); 147 rx_packets = stats64->rx_packets; 148 rx_bytes = stats64->rx_bytes; 149 tx_packets = stats64->tx_packets; 150 tx_bytes = stats64->tx_bytes; 151 } while (u64_stats_fetch_retry_irq(&stats64->syncp, start)); 152 153 stats->rx_packets += rx_packets; 154 stats->rx_bytes += rx_bytes; 155 stats->tx_packets += tx_packets; 156 stats->tx_bytes += tx_bytes; 157 } 158 } 159 160 static const struct net_device_ops qmimux_netdev_ops = { 161 .ndo_open = qmimux_open, 162 .ndo_stop = qmimux_stop, 163 .ndo_start_xmit = qmimux_start_xmit, 164 .ndo_get_stats64 = qmimux_get_stats64, 165 }; 166 167 static void qmimux_setup(struct net_device *dev) 168 { 169 dev->header_ops = NULL; /* No header */ 170 dev->type = ARPHRD_NONE; 171 dev->hard_header_len = 0; 172 dev->addr_len = 0; 173 dev->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST; 174 dev->netdev_ops = &qmimux_netdev_ops; 175 dev->mtu = 1500; 176 dev->needs_free_netdev = true; 177 } 178 179 static struct net_device *qmimux_find_dev(struct usbnet *dev, u8 mux_id) 180 { 181 struct qmimux_priv *priv; 182 struct list_head *iter; 183 struct net_device *ldev; 184 185 rcu_read_lock(); 186 netdev_for_each_upper_dev_rcu(dev->net, ldev, iter) { 187 priv = netdev_priv(ldev); 188 if (priv->mux_id == mux_id) { 189 rcu_read_unlock(); 190 return ldev; 191 } 192 } 193 rcu_read_unlock(); 194 return NULL; 195 } 196 197 static bool qmimux_has_slaves(struct usbnet *dev) 198 { 199 return !list_empty(&dev->net->adj_list.upper); 200 } 201 202 static int qmimux_rx_fixup(struct usbnet *dev, struct sk_buff *skb) 203 { 204 unsigned int len, offset = 0, pad_len, pkt_len; 205 struct qmimux_hdr *hdr; 206 struct net_device *net; 207 struct sk_buff *skbn; 208 u8 qmimux_hdr_sz = sizeof(*hdr); 209 210 while (offset + qmimux_hdr_sz < skb->len) { 211 hdr = (struct qmimux_hdr *)(skb->data + offset); 212 len = be16_to_cpu(hdr->pkt_len); 213 214 /* drop the packet, bogus length */ 215 if (offset + len + qmimux_hdr_sz > skb->len) 216 return 0; 217 218 /* control packet, we do not know what to do */ 219 if (hdr->pad & 0x80) 220 goto skip; 221 222 /* extract padding length and check for valid length info */ 223 pad_len = hdr->pad & 0x3f; 224 if (len == 0 || pad_len >= len) 225 goto skip; 226 pkt_len = len - pad_len; 227 228 net = qmimux_find_dev(dev, hdr->mux_id); 229 if (!net) 230 goto skip; 231 skbn = netdev_alloc_skb(net, pkt_len); 232 if (!skbn) 233 return 0; 234 skbn->dev = net; 235 236 switch (skb->data[offset + qmimux_hdr_sz] & 0xf0) { 237 case 0x40: 238 skbn->protocol = htons(ETH_P_IP); 239 break; 240 case 0x60: 241 skbn->protocol = htons(ETH_P_IPV6); 242 break; 243 default: 244 /* not ip - do not know what to do */ 245 goto skip; 246 } 247 248 skb_put_data(skbn, skb->data + offset + qmimux_hdr_sz, pkt_len); 249 if (netif_rx(skbn) != NET_RX_SUCCESS) { 250 net->stats.rx_errors++; 251 return 0; 252 } else { 253 struct pcpu_sw_netstats *stats64; 254 struct qmimux_priv *priv = netdev_priv(net); 255 256 stats64 = this_cpu_ptr(priv->stats64); 257 u64_stats_update_begin(&stats64->syncp); 258 stats64->rx_packets++; 259 stats64->rx_bytes += pkt_len; 260 u64_stats_update_end(&stats64->syncp); 261 } 262 263 skip: 264 offset += len + qmimux_hdr_sz; 265 } 266 return 1; 267 } 268 269 static int qmimux_register_device(struct net_device *real_dev, u8 mux_id) 270 { 271 struct net_device *new_dev; 272 struct qmimux_priv *priv; 273 int err; 274 275 new_dev = alloc_netdev(sizeof(struct qmimux_priv), 276 "qmimux%d", NET_NAME_UNKNOWN, qmimux_setup); 277 if (!new_dev) 278 return -ENOBUFS; 279 280 dev_net_set(new_dev, dev_net(real_dev)); 281 priv = netdev_priv(new_dev); 282 priv->mux_id = mux_id; 283 priv->real_dev = real_dev; 284 285 priv->stats64 = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); 286 if (!priv->stats64) { 287 err = -ENOBUFS; 288 goto out_free_newdev; 289 } 290 291 err = register_netdevice(new_dev); 292 if (err < 0) 293 goto out_free_newdev; 294 295 /* Account for reference in struct qmimux_priv_priv */ 296 dev_hold(real_dev); 297 298 err = netdev_upper_dev_link(real_dev, new_dev, NULL); 299 if (err) 300 goto out_unregister_netdev; 301 302 netif_stacked_transfer_operstate(real_dev, new_dev); 303 304 return 0; 305 306 out_unregister_netdev: 307 unregister_netdevice(new_dev); 308 dev_put(real_dev); 309 310 out_free_newdev: 311 free_netdev(new_dev); 312 return err; 313 } 314 315 static void qmimux_unregister_device(struct net_device *dev, 316 struct list_head *head) 317 { 318 struct qmimux_priv *priv = netdev_priv(dev); 319 struct net_device *real_dev = priv->real_dev; 320 321 free_percpu(priv->stats64); 322 netdev_upper_dev_unlink(real_dev, dev); 323 unregister_netdevice_queue(dev, head); 324 325 /* Get rid of the reference to real_dev */ 326 dev_put(real_dev); 327 } 328 329 static void qmi_wwan_netdev_setup(struct net_device *net) 330 { 331 struct usbnet *dev = netdev_priv(net); 332 struct qmi_wwan_state *info = (void *)&dev->data; 333 334 if (info->flags & QMI_WWAN_FLAG_RAWIP) { 335 net->header_ops = NULL; /* No header */ 336 net->type = ARPHRD_NONE; 337 net->hard_header_len = 0; 338 net->addr_len = 0; 339 net->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST; 340 set_bit(EVENT_NO_IP_ALIGN, &dev->flags); 341 netdev_dbg(net, "mode: raw IP\n"); 342 } else if (!net->header_ops) { /* don't bother if already set */ 343 ether_setup(net); 344 clear_bit(EVENT_NO_IP_ALIGN, &dev->flags); 345 netdev_dbg(net, "mode: Ethernet\n"); 346 } 347 348 /* recalculate buffers after changing hard_header_len */ 349 usbnet_change_mtu(net, net->mtu); 350 } 351 352 static ssize_t raw_ip_show(struct device *d, struct device_attribute *attr, char *buf) 353 { 354 struct usbnet *dev = netdev_priv(to_net_dev(d)); 355 struct qmi_wwan_state *info = (void *)&dev->data; 356 357 return sprintf(buf, "%c\n", info->flags & QMI_WWAN_FLAG_RAWIP ? 'Y' : 'N'); 358 } 359 360 static ssize_t raw_ip_store(struct device *d, struct device_attribute *attr, const char *buf, size_t len) 361 { 362 struct usbnet *dev = netdev_priv(to_net_dev(d)); 363 struct qmi_wwan_state *info = (void *)&dev->data; 364 bool enable; 365 int ret; 366 367 if (strtobool(buf, &enable)) 368 return -EINVAL; 369 370 /* no change? */ 371 if (enable == (info->flags & QMI_WWAN_FLAG_RAWIP)) 372 return len; 373 374 if (!rtnl_trylock()) 375 return restart_syscall(); 376 377 /* we don't want to modify a running netdev */ 378 if (netif_running(dev->net)) { 379 netdev_err(dev->net, "Cannot change a running device\n"); 380 ret = -EBUSY; 381 goto err; 382 } 383 384 /* let other drivers deny the change */ 385 ret = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev->net); 386 ret = notifier_to_errno(ret); 387 if (ret) { 388 netdev_err(dev->net, "Type change was refused\n"); 389 goto err; 390 } 391 392 if (enable) 393 info->flags |= QMI_WWAN_FLAG_RAWIP; 394 else 395 info->flags &= ~QMI_WWAN_FLAG_RAWIP; 396 qmi_wwan_netdev_setup(dev->net); 397 call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev->net); 398 ret = len; 399 err: 400 rtnl_unlock(); 401 return ret; 402 } 403 404 static ssize_t add_mux_show(struct device *d, struct device_attribute *attr, char *buf) 405 { 406 struct net_device *dev = to_net_dev(d); 407 struct qmimux_priv *priv; 408 struct list_head *iter; 409 struct net_device *ldev; 410 ssize_t count = 0; 411 412 rcu_read_lock(); 413 netdev_for_each_upper_dev_rcu(dev, ldev, iter) { 414 priv = netdev_priv(ldev); 415 count += scnprintf(&buf[count], PAGE_SIZE - count, 416 "0x%02x\n", priv->mux_id); 417 } 418 rcu_read_unlock(); 419 return count; 420 } 421 422 static ssize_t add_mux_store(struct device *d, struct device_attribute *attr, const char *buf, size_t len) 423 { 424 struct usbnet *dev = netdev_priv(to_net_dev(d)); 425 struct qmi_wwan_state *info = (void *)&dev->data; 426 u8 mux_id; 427 int ret; 428 429 if (kstrtou8(buf, 0, &mux_id)) 430 return -EINVAL; 431 432 /* mux_id [1 - 254] for compatibility with ip(8) and the rmnet driver */ 433 if (mux_id < 1 || mux_id > 254) 434 return -EINVAL; 435 436 if (!rtnl_trylock()) 437 return restart_syscall(); 438 439 if (qmimux_find_dev(dev, mux_id)) { 440 netdev_err(dev->net, "mux_id already present\n"); 441 ret = -EINVAL; 442 goto err; 443 } 444 445 /* we don't want to modify a running netdev */ 446 if (netif_running(dev->net)) { 447 netdev_err(dev->net, "Cannot change a running device\n"); 448 ret = -EBUSY; 449 goto err; 450 } 451 452 ret = qmimux_register_device(dev->net, mux_id); 453 if (!ret) { 454 info->flags |= QMI_WWAN_FLAG_MUX; 455 ret = len; 456 } 457 err: 458 rtnl_unlock(); 459 return ret; 460 } 461 462 static ssize_t del_mux_show(struct device *d, struct device_attribute *attr, char *buf) 463 { 464 return add_mux_show(d, attr, buf); 465 } 466 467 static ssize_t del_mux_store(struct device *d, struct device_attribute *attr, const char *buf, size_t len) 468 { 469 struct usbnet *dev = netdev_priv(to_net_dev(d)); 470 struct qmi_wwan_state *info = (void *)&dev->data; 471 struct net_device *del_dev; 472 u8 mux_id; 473 int ret = 0; 474 475 if (kstrtou8(buf, 0, &mux_id)) 476 return -EINVAL; 477 478 if (!rtnl_trylock()) 479 return restart_syscall(); 480 481 /* we don't want to modify a running netdev */ 482 if (netif_running(dev->net)) { 483 netdev_err(dev->net, "Cannot change a running device\n"); 484 ret = -EBUSY; 485 goto err; 486 } 487 488 del_dev = qmimux_find_dev(dev, mux_id); 489 if (!del_dev) { 490 netdev_err(dev->net, "mux_id not present\n"); 491 ret = -EINVAL; 492 goto err; 493 } 494 qmimux_unregister_device(del_dev, NULL); 495 496 if (!qmimux_has_slaves(dev)) 497 info->flags &= ~QMI_WWAN_FLAG_MUX; 498 ret = len; 499 err: 500 rtnl_unlock(); 501 return ret; 502 } 503 504 static DEVICE_ATTR_RW(raw_ip); 505 static DEVICE_ATTR_RW(add_mux); 506 static DEVICE_ATTR_RW(del_mux); 507 508 static struct attribute *qmi_wwan_sysfs_attrs[] = { 509 &dev_attr_raw_ip.attr, 510 &dev_attr_add_mux.attr, 511 &dev_attr_del_mux.attr, 512 NULL, 513 }; 514 515 static struct attribute_group qmi_wwan_sysfs_attr_group = { 516 .name = "qmi", 517 .attrs = qmi_wwan_sysfs_attrs, 518 }; 519 520 /* default ethernet address used by the modem */ 521 static const u8 default_modem_addr[ETH_ALEN] = {0x02, 0x50, 0xf3}; 522 523 static const u8 buggy_fw_addr[ETH_ALEN] = {0x00, 0xa0, 0xc6, 0x00, 0x00, 0x00}; 524 525 /* Make up an ethernet header if the packet doesn't have one. 526 * 527 * A firmware bug common among several devices cause them to send raw 528 * IP packets under some circumstances. There is no way for the 529 * driver/host to know when this will happen. And even when the bug 530 * hits, some packets will still arrive with an intact header. 531 * 532 * The supported devices are only capably of sending IPv4, IPv6 and 533 * ARP packets on a point-to-point link. Any packet with an ethernet 534 * header will have either our address or a broadcast/multicast 535 * address as destination. ARP packets will always have a header. 536 * 537 * This means that this function will reliably add the appropriate 538 * header iff necessary, provided our hardware address does not start 539 * with 4 or 6. 540 * 541 * Another common firmware bug results in all packets being addressed 542 * to 00:a0:c6:00:00:00 despite the host address being different. 543 * This function will also fixup such packets. 544 */ 545 static int qmi_wwan_rx_fixup(struct usbnet *dev, struct sk_buff *skb) 546 { 547 struct qmi_wwan_state *info = (void *)&dev->data; 548 bool rawip = info->flags & QMI_WWAN_FLAG_RAWIP; 549 __be16 proto; 550 551 /* This check is no longer done by usbnet */ 552 if (skb->len < dev->net->hard_header_len) 553 return 0; 554 555 if (info->flags & QMI_WWAN_FLAG_MUX) 556 return qmimux_rx_fixup(dev, skb); 557 558 switch (skb->data[0] & 0xf0) { 559 case 0x40: 560 proto = htons(ETH_P_IP); 561 break; 562 case 0x60: 563 proto = htons(ETH_P_IPV6); 564 break; 565 case 0x00: 566 if (rawip) 567 return 0; 568 if (is_multicast_ether_addr(skb->data)) 569 return 1; 570 /* possibly bogus destination - rewrite just in case */ 571 skb_reset_mac_header(skb); 572 goto fix_dest; 573 default: 574 if (rawip) 575 return 0; 576 /* pass along other packets without modifications */ 577 return 1; 578 } 579 if (rawip) { 580 skb_reset_mac_header(skb); 581 skb->dev = dev->net; /* normally set by eth_type_trans */ 582 skb->protocol = proto; 583 return 1; 584 } 585 586 if (skb_headroom(skb) < ETH_HLEN) 587 return 0; 588 skb_push(skb, ETH_HLEN); 589 skb_reset_mac_header(skb); 590 eth_hdr(skb)->h_proto = proto; 591 eth_zero_addr(eth_hdr(skb)->h_source); 592 fix_dest: 593 memcpy(eth_hdr(skb)->h_dest, dev->net->dev_addr, ETH_ALEN); 594 return 1; 595 } 596 597 /* very simplistic detection of IPv4 or IPv6 headers */ 598 static bool possibly_iphdr(const char *data) 599 { 600 return (data[0] & 0xd0) == 0x40; 601 } 602 603 /* disallow addresses which may be confused with IP headers */ 604 static int qmi_wwan_mac_addr(struct net_device *dev, void *p) 605 { 606 int ret; 607 struct sockaddr *addr = p; 608 609 ret = eth_prepare_mac_addr_change(dev, p); 610 if (ret < 0) 611 return ret; 612 if (possibly_iphdr(addr->sa_data)) 613 return -EADDRNOTAVAIL; 614 eth_commit_mac_addr_change(dev, p); 615 return 0; 616 } 617 618 static const struct net_device_ops qmi_wwan_netdev_ops = { 619 .ndo_open = usbnet_open, 620 .ndo_stop = usbnet_stop, 621 .ndo_start_xmit = usbnet_start_xmit, 622 .ndo_tx_timeout = usbnet_tx_timeout, 623 .ndo_change_mtu = usbnet_change_mtu, 624 .ndo_get_stats64 = usbnet_get_stats64, 625 .ndo_set_mac_address = qmi_wwan_mac_addr, 626 .ndo_validate_addr = eth_validate_addr, 627 }; 628 629 /* using a counter to merge subdriver requests with our own into a 630 * combined state 631 */ 632 static int qmi_wwan_manage_power(struct usbnet *dev, int on) 633 { 634 struct qmi_wwan_state *info = (void *)&dev->data; 635 int rv; 636 637 dev_dbg(&dev->intf->dev, "%s() pmcount=%d, on=%d\n", __func__, 638 atomic_read(&info->pmcount), on); 639 640 if ((on && atomic_add_return(1, &info->pmcount) == 1) || 641 (!on && atomic_dec_and_test(&info->pmcount))) { 642 /* need autopm_get/put here to ensure the usbcore sees 643 * the new value 644 */ 645 rv = usb_autopm_get_interface(dev->intf); 646 dev->intf->needs_remote_wakeup = on; 647 if (!rv) 648 usb_autopm_put_interface(dev->intf); 649 } 650 return 0; 651 } 652 653 static int qmi_wwan_cdc_wdm_manage_power(struct usb_interface *intf, int on) 654 { 655 struct usbnet *dev = usb_get_intfdata(intf); 656 657 /* can be called while disconnecting */ 658 if (!dev) 659 return 0; 660 return qmi_wwan_manage_power(dev, on); 661 } 662 663 /* collect all three endpoints and register subdriver */ 664 static int qmi_wwan_register_subdriver(struct usbnet *dev) 665 { 666 int rv; 667 struct usb_driver *subdriver = NULL; 668 struct qmi_wwan_state *info = (void *)&dev->data; 669 670 /* collect bulk endpoints */ 671 rv = usbnet_get_endpoints(dev, info->data); 672 if (rv < 0) 673 goto err; 674 675 /* update status endpoint if separate control interface */ 676 if (info->control != info->data) 677 dev->status = &info->control->cur_altsetting->endpoint[0]; 678 679 /* require interrupt endpoint for subdriver */ 680 if (!dev->status) { 681 rv = -EINVAL; 682 goto err; 683 } 684 685 /* for subdriver power management */ 686 atomic_set(&info->pmcount, 0); 687 688 /* register subdriver */ 689 subdriver = usb_cdc_wdm_register(info->control, &dev->status->desc, 690 4096, &qmi_wwan_cdc_wdm_manage_power); 691 if (IS_ERR(subdriver)) { 692 dev_err(&info->control->dev, "subdriver registration failed\n"); 693 rv = PTR_ERR(subdriver); 694 goto err; 695 } 696 697 /* prevent usbnet from using status endpoint */ 698 dev->status = NULL; 699 700 /* save subdriver struct for suspend/resume wrappers */ 701 info->subdriver = subdriver; 702 703 err: 704 return rv; 705 } 706 707 /* Send CDC SetControlLineState request, setting or clearing the DTR. 708 * "Required for Autoconnect and 9x30 to wake up" according to the 709 * GobiNet driver. The requirement has been verified on an MDM9230 710 * based Sierra Wireless MC7455 711 */ 712 static int qmi_wwan_change_dtr(struct usbnet *dev, bool on) 713 { 714 u8 intf = dev->intf->cur_altsetting->desc.bInterfaceNumber; 715 716 return usbnet_write_cmd(dev, USB_CDC_REQ_SET_CONTROL_LINE_STATE, 717 USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, 718 on ? 0x01 : 0x00, intf, NULL, 0); 719 } 720 721 static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf) 722 { 723 int status = -1; 724 u8 *buf = intf->cur_altsetting->extra; 725 int len = intf->cur_altsetting->extralen; 726 struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc; 727 struct usb_cdc_union_desc *cdc_union; 728 struct usb_cdc_ether_desc *cdc_ether; 729 struct usb_driver *driver = driver_of(intf); 730 struct qmi_wwan_state *info = (void *)&dev->data; 731 struct usb_cdc_parsed_header hdr; 732 733 BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) < 734 sizeof(struct qmi_wwan_state))); 735 736 /* set up initial state */ 737 info->control = intf; 738 info->data = intf; 739 740 /* and a number of CDC descriptors */ 741 cdc_parse_cdc_header(&hdr, intf, buf, len); 742 cdc_union = hdr.usb_cdc_union_desc; 743 cdc_ether = hdr.usb_cdc_ether_desc; 744 745 /* Use separate control and data interfaces if we found a CDC Union */ 746 if (cdc_union) { 747 info->data = usb_ifnum_to_if(dev->udev, 748 cdc_union->bSlaveInterface0); 749 if (desc->bInterfaceNumber != cdc_union->bMasterInterface0 || 750 !info->data) { 751 dev_err(&intf->dev, 752 "bogus CDC Union: master=%u, slave=%u\n", 753 cdc_union->bMasterInterface0, 754 cdc_union->bSlaveInterface0); 755 756 /* ignore and continue... */ 757 cdc_union = NULL; 758 info->data = intf; 759 } 760 } 761 762 /* errors aren't fatal - we can live with the dynamic address */ 763 if (cdc_ether && cdc_ether->wMaxSegmentSize) { 764 dev->hard_mtu = le16_to_cpu(cdc_ether->wMaxSegmentSize); 765 usbnet_get_ethernet_addr(dev, cdc_ether->iMACAddress); 766 } 767 768 /* claim data interface and set it up */ 769 if (info->control != info->data) { 770 status = usb_driver_claim_interface(driver, info->data, dev); 771 if (status < 0) 772 goto err; 773 } 774 775 status = qmi_wwan_register_subdriver(dev); 776 if (status < 0 && info->control != info->data) { 777 usb_set_intfdata(info->data, NULL); 778 usb_driver_release_interface(driver, info->data); 779 } 780 781 /* disabling remote wakeup on MDM9x30 devices has the same 782 * effect as clearing DTR. The device will not respond to QMI 783 * requests until we set DTR again. This is similar to a 784 * QMI_CTL SYNC request, clearing a lot of firmware state 785 * including the client ID allocations. 786 * 787 * Our usage model allows a session to span multiple 788 * open/close events, so we must prevent the firmware from 789 * clearing out state the clients might need. 790 * 791 * MDM9x30 is the first QMI chipset with USB3 support. Abuse 792 * this fact to enable the quirk for all USB3 devices. 793 * 794 * There are also chipsets with the same "set DTR" requirement 795 * but without USB3 support. Devices based on these chips 796 * need a quirk flag in the device ID table. 797 */ 798 if (dev->driver_info->data & QMI_WWAN_QUIRK_DTR || 799 le16_to_cpu(dev->udev->descriptor.bcdUSB) >= 0x0201) { 800 qmi_wwan_manage_power(dev, 1); 801 qmi_wwan_change_dtr(dev, true); 802 } 803 804 /* Never use the same address on both ends of the link, even if the 805 * buggy firmware told us to. Or, if device is assigned the well-known 806 * buggy firmware MAC address, replace it with a random address, 807 */ 808 if (ether_addr_equal(dev->net->dev_addr, default_modem_addr) || 809 ether_addr_equal(dev->net->dev_addr, buggy_fw_addr)) 810 eth_hw_addr_random(dev->net); 811 812 /* make MAC addr easily distinguishable from an IP header */ 813 if (possibly_iphdr(dev->net->dev_addr)) { 814 dev->net->dev_addr[0] |= 0x02; /* set local assignment bit */ 815 dev->net->dev_addr[0] &= 0xbf; /* clear "IP" bit */ 816 } 817 dev->net->netdev_ops = &qmi_wwan_netdev_ops; 818 dev->net->sysfs_groups[0] = &qmi_wwan_sysfs_attr_group; 819 err: 820 return status; 821 } 822 823 static void qmi_wwan_unbind(struct usbnet *dev, struct usb_interface *intf) 824 { 825 struct qmi_wwan_state *info = (void *)&dev->data; 826 struct usb_driver *driver = driver_of(intf); 827 struct usb_interface *other; 828 829 if (info->subdriver && info->subdriver->disconnect) 830 info->subdriver->disconnect(info->control); 831 832 /* disable MDM9x30 quirk */ 833 if (le16_to_cpu(dev->udev->descriptor.bcdUSB) >= 0x0201) { 834 qmi_wwan_change_dtr(dev, false); 835 qmi_wwan_manage_power(dev, 0); 836 } 837 838 /* allow user to unbind using either control or data */ 839 if (intf == info->control) 840 other = info->data; 841 else 842 other = info->control; 843 844 /* only if not shared */ 845 if (other && intf != other) { 846 usb_set_intfdata(other, NULL); 847 usb_driver_release_interface(driver, other); 848 } 849 850 info->subdriver = NULL; 851 info->data = NULL; 852 info->control = NULL; 853 } 854 855 /* suspend/resume wrappers calling both usbnet and the cdc-wdm 856 * subdriver if present. 857 * 858 * NOTE: cdc-wdm also supports pre/post_reset, but we cannot provide 859 * wrappers for those without adding usbnet reset support first. 860 */ 861 static int qmi_wwan_suspend(struct usb_interface *intf, pm_message_t message) 862 { 863 struct usbnet *dev = usb_get_intfdata(intf); 864 struct qmi_wwan_state *info = (void *)&dev->data; 865 int ret; 866 867 /* Both usbnet_suspend() and subdriver->suspend() MUST return 0 868 * in system sleep context, otherwise, the resume callback has 869 * to recover device from previous suspend failure. 870 */ 871 ret = usbnet_suspend(intf, message); 872 if (ret < 0) 873 goto err; 874 875 if (intf == info->control && info->subdriver && 876 info->subdriver->suspend) 877 ret = info->subdriver->suspend(intf, message); 878 if (ret < 0) 879 usbnet_resume(intf); 880 err: 881 return ret; 882 } 883 884 static int qmi_wwan_resume(struct usb_interface *intf) 885 { 886 struct usbnet *dev = usb_get_intfdata(intf); 887 struct qmi_wwan_state *info = (void *)&dev->data; 888 int ret = 0; 889 bool callsub = (intf == info->control && info->subdriver && 890 info->subdriver->resume); 891 892 if (callsub) 893 ret = info->subdriver->resume(intf); 894 if (ret < 0) 895 goto err; 896 ret = usbnet_resume(intf); 897 if (ret < 0 && callsub) 898 info->subdriver->suspend(intf, PMSG_SUSPEND); 899 err: 900 return ret; 901 } 902 903 static const struct driver_info qmi_wwan_info = { 904 .description = "WWAN/QMI device", 905 .flags = FLAG_WWAN | FLAG_SEND_ZLP, 906 .bind = qmi_wwan_bind, 907 .unbind = qmi_wwan_unbind, 908 .manage_power = qmi_wwan_manage_power, 909 .rx_fixup = qmi_wwan_rx_fixup, 910 }; 911 912 static const struct driver_info qmi_wwan_info_quirk_dtr = { 913 .description = "WWAN/QMI device", 914 .flags = FLAG_WWAN | FLAG_SEND_ZLP, 915 .bind = qmi_wwan_bind, 916 .unbind = qmi_wwan_unbind, 917 .manage_power = qmi_wwan_manage_power, 918 .rx_fixup = qmi_wwan_rx_fixup, 919 .data = QMI_WWAN_QUIRK_DTR, 920 }; 921 922 static const struct driver_info qmi_wwan_info_quirk_quectel_dyncfg = { 923 .description = "WWAN/QMI device", 924 .flags = FLAG_WWAN | FLAG_SEND_ZLP, 925 .bind = qmi_wwan_bind, 926 .unbind = qmi_wwan_unbind, 927 .manage_power = qmi_wwan_manage_power, 928 .rx_fixup = qmi_wwan_rx_fixup, 929 .data = QMI_WWAN_QUIRK_DTR | QMI_WWAN_QUIRK_QUECTEL_DYNCFG, 930 }; 931 932 #define HUAWEI_VENDOR_ID 0x12D1 933 934 /* map QMI/wwan function by a fixed interface number */ 935 #define QMI_FIXED_INTF(vend, prod, num) \ 936 USB_DEVICE_INTERFACE_NUMBER(vend, prod, num), \ 937 .driver_info = (unsigned long)&qmi_wwan_info 938 939 /* devices requiring "set DTR" quirk */ 940 #define QMI_QUIRK_SET_DTR(vend, prod, num) \ 941 USB_DEVICE_INTERFACE_NUMBER(vend, prod, num), \ 942 .driver_info = (unsigned long)&qmi_wwan_info_quirk_dtr 943 944 /* Gobi 1000 QMI/wwan interface number is 3 according to qcserial */ 945 #define QMI_GOBI1K_DEVICE(vend, prod) \ 946 QMI_FIXED_INTF(vend, prod, 3) 947 948 /* Gobi 2000/3000 QMI/wwan interface number is 0 according to qcserial */ 949 #define QMI_GOBI_DEVICE(vend, prod) \ 950 QMI_FIXED_INTF(vend, prod, 0) 951 952 /* Quectel does not use fixed interface numbers on at least some of their 953 * devices. We need to check the number of endpoints to ensure that we bind to 954 * the correct interface. 955 */ 956 #define QMI_QUIRK_QUECTEL_DYNCFG(vend, prod) \ 957 USB_DEVICE_AND_INTERFACE_INFO(vend, prod, USB_CLASS_VENDOR_SPEC, \ 958 USB_SUBCLASS_VENDOR_SPEC, 0xff), \ 959 .driver_info = (unsigned long)&qmi_wwan_info_quirk_quectel_dyncfg 960 961 static const struct usb_device_id products[] = { 962 /* 1. CDC ECM like devices match on the control interface */ 963 { /* Huawei E392, E398 and possibly others sharing both device id and more... */ 964 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 9), 965 .driver_info = (unsigned long)&qmi_wwan_info, 966 }, 967 { /* Vodafone/Huawei K5005 (12d1:14c8) and similar modems */ 968 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 57), 969 .driver_info = (unsigned long)&qmi_wwan_info, 970 }, 971 { /* HUAWEI_INTERFACE_NDIS_CONTROL_QUALCOMM */ 972 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 0x01, 0x69), 973 .driver_info = (unsigned long)&qmi_wwan_info, 974 }, 975 { /* Motorola Mapphone devices with MDM6600 */ 976 USB_VENDOR_AND_INTERFACE_INFO(0x22b8, USB_CLASS_VENDOR_SPEC, 0xfb, 0xff), 977 .driver_info = (unsigned long)&qmi_wwan_info, 978 }, 979 980 /* 2. Combined interface devices matching on class+protocol */ 981 { /* Huawei E367 and possibly others in "Windows mode" */ 982 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 7), 983 .driver_info = (unsigned long)&qmi_wwan_info, 984 }, 985 { /* Huawei E392, E398 and possibly others in "Windows mode" */ 986 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 17), 987 .driver_info = (unsigned long)&qmi_wwan_info, 988 }, 989 { /* HUAWEI_NDIS_SINGLE_INTERFACE_VDF */ 990 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 0x01, 0x37), 991 .driver_info = (unsigned long)&qmi_wwan_info, 992 }, 993 { /* HUAWEI_INTERFACE_NDIS_HW_QUALCOMM */ 994 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 0x01, 0x67), 995 .driver_info = (unsigned long)&qmi_wwan_info, 996 }, 997 { /* Pantech UML290, P4200 and more */ 998 USB_VENDOR_AND_INTERFACE_INFO(0x106c, USB_CLASS_VENDOR_SPEC, 0xf0, 0xff), 999 .driver_info = (unsigned long)&qmi_wwan_info, 1000 }, 1001 { /* Pantech UML290 - newer firmware */ 1002 USB_VENDOR_AND_INTERFACE_INFO(0x106c, USB_CLASS_VENDOR_SPEC, 0xf1, 0xff), 1003 .driver_info = (unsigned long)&qmi_wwan_info, 1004 }, 1005 { /* Novatel USB551L and MC551 */ 1006 USB_DEVICE_AND_INTERFACE_INFO(0x1410, 0xb001, 1007 USB_CLASS_COMM, 1008 USB_CDC_SUBCLASS_ETHERNET, 1009 USB_CDC_PROTO_NONE), 1010 .driver_info = (unsigned long)&qmi_wwan_info, 1011 }, 1012 { /* Novatel E362 */ 1013 USB_DEVICE_AND_INTERFACE_INFO(0x1410, 0x9010, 1014 USB_CLASS_COMM, 1015 USB_CDC_SUBCLASS_ETHERNET, 1016 USB_CDC_PROTO_NONE), 1017 .driver_info = (unsigned long)&qmi_wwan_info, 1018 }, 1019 { /* Novatel Expedite E371 */ 1020 USB_DEVICE_AND_INTERFACE_INFO(0x1410, 0x9011, 1021 USB_CLASS_COMM, 1022 USB_CDC_SUBCLASS_ETHERNET, 1023 USB_CDC_PROTO_NONE), 1024 .driver_info = (unsigned long)&qmi_wwan_info, 1025 }, 1026 { /* Dell Wireless 5800 (Novatel E362) */ 1027 USB_DEVICE_AND_INTERFACE_INFO(0x413C, 0x8195, 1028 USB_CLASS_COMM, 1029 USB_CDC_SUBCLASS_ETHERNET, 1030 USB_CDC_PROTO_NONE), 1031 .driver_info = (unsigned long)&qmi_wwan_info, 1032 }, 1033 { /* Dell Wireless 5800 V2 (Novatel E362) */ 1034 USB_DEVICE_AND_INTERFACE_INFO(0x413C, 0x8196, 1035 USB_CLASS_COMM, 1036 USB_CDC_SUBCLASS_ETHERNET, 1037 USB_CDC_PROTO_NONE), 1038 .driver_info = (unsigned long)&qmi_wwan_info, 1039 }, 1040 { /* Dell Wireless 5804 (Novatel E371) */ 1041 USB_DEVICE_AND_INTERFACE_INFO(0x413C, 0x819b, 1042 USB_CLASS_COMM, 1043 USB_CDC_SUBCLASS_ETHERNET, 1044 USB_CDC_PROTO_NONE), 1045 .driver_info = (unsigned long)&qmi_wwan_info, 1046 }, 1047 { /* ADU960S */ 1048 USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, 1049 USB_CLASS_COMM, 1050 USB_CDC_SUBCLASS_ETHERNET, 1051 USB_CDC_PROTO_NONE), 1052 .driver_info = (unsigned long)&qmi_wwan_info, 1053 }, 1054 { /* HP lt2523 (Novatel E371) */ 1055 USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x421d, 1056 USB_CLASS_COMM, 1057 USB_CDC_SUBCLASS_ETHERNET, 1058 USB_CDC_PROTO_NONE), 1059 .driver_info = (unsigned long)&qmi_wwan_info, 1060 }, 1061 { /* HP lt4112 LTE/HSPA+ Gobi 4G Module (Huawei me906e) */ 1062 USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x581d, USB_CLASS_VENDOR_SPEC, 1, 7), 1063 .driver_info = (unsigned long)&qmi_wwan_info, 1064 }, 1065 {QMI_QUIRK_QUECTEL_DYNCFG(0x2c7c, 0x0125)}, /* Quectel EC25, EC20 R2.0 Mini PCIe */ 1066 {QMI_QUIRK_QUECTEL_DYNCFG(0x2c7c, 0x0306)}, /* Quectel EP06/EG06/EM06 */ 1067 {QMI_QUIRK_QUECTEL_DYNCFG(0x2c7c, 0x0512)}, /* Quectel EG12/EM12 */ 1068 1069 /* 3. Combined interface devices matching on interface number */ 1070 {QMI_FIXED_INTF(0x0408, 0xea42, 4)}, /* Yota / Megafon M100-1 */ 1071 {QMI_FIXED_INTF(0x05c6, 0x6001, 3)}, /* 4G LTE usb-modem U901 */ 1072 {QMI_FIXED_INTF(0x05c6, 0x7000, 0)}, 1073 {QMI_FIXED_INTF(0x05c6, 0x7001, 1)}, 1074 {QMI_FIXED_INTF(0x05c6, 0x7002, 1)}, 1075 {QMI_FIXED_INTF(0x05c6, 0x7101, 1)}, 1076 {QMI_FIXED_INTF(0x05c6, 0x7101, 2)}, 1077 {QMI_FIXED_INTF(0x05c6, 0x7101, 3)}, 1078 {QMI_FIXED_INTF(0x05c6, 0x7102, 1)}, 1079 {QMI_FIXED_INTF(0x05c6, 0x7102, 2)}, 1080 {QMI_FIXED_INTF(0x05c6, 0x7102, 3)}, 1081 {QMI_FIXED_INTF(0x05c6, 0x8000, 7)}, 1082 {QMI_FIXED_INTF(0x05c6, 0x8001, 6)}, 1083 {QMI_FIXED_INTF(0x05c6, 0x9000, 4)}, 1084 {QMI_FIXED_INTF(0x05c6, 0x9003, 4)}, 1085 {QMI_FIXED_INTF(0x05c6, 0x9005, 2)}, 1086 {QMI_FIXED_INTF(0x05c6, 0x900a, 4)}, 1087 {QMI_FIXED_INTF(0x05c6, 0x900b, 2)}, 1088 {QMI_FIXED_INTF(0x05c6, 0x900c, 4)}, 1089 {QMI_FIXED_INTF(0x05c6, 0x900c, 5)}, 1090 {QMI_FIXED_INTF(0x05c6, 0x900c, 6)}, 1091 {QMI_FIXED_INTF(0x05c6, 0x900d, 5)}, 1092 {QMI_FIXED_INTF(0x05c6, 0x900f, 3)}, 1093 {QMI_FIXED_INTF(0x05c6, 0x900f, 4)}, 1094 {QMI_FIXED_INTF(0x05c6, 0x900f, 5)}, 1095 {QMI_FIXED_INTF(0x05c6, 0x9010, 4)}, 1096 {QMI_FIXED_INTF(0x05c6, 0x9010, 5)}, 1097 {QMI_FIXED_INTF(0x05c6, 0x9011, 3)}, 1098 {QMI_FIXED_INTF(0x05c6, 0x9011, 4)}, 1099 {QMI_FIXED_INTF(0x05c6, 0x9021, 1)}, 1100 {QMI_FIXED_INTF(0x05c6, 0x9022, 2)}, 1101 {QMI_FIXED_INTF(0x05c6, 0x9025, 4)}, /* Alcatel-sbell ASB TL131 TDD LTE (China Mobile) */ 1102 {QMI_FIXED_INTF(0x05c6, 0x9026, 3)}, 1103 {QMI_FIXED_INTF(0x05c6, 0x902e, 5)}, 1104 {QMI_FIXED_INTF(0x05c6, 0x9031, 5)}, 1105 {QMI_FIXED_INTF(0x05c6, 0x9032, 4)}, 1106 {QMI_FIXED_INTF(0x05c6, 0x9033, 3)}, 1107 {QMI_FIXED_INTF(0x05c6, 0x9033, 4)}, 1108 {QMI_FIXED_INTF(0x05c6, 0x9033, 5)}, 1109 {QMI_FIXED_INTF(0x05c6, 0x9033, 6)}, 1110 {QMI_FIXED_INTF(0x05c6, 0x9034, 3)}, 1111 {QMI_FIXED_INTF(0x05c6, 0x9034, 4)}, 1112 {QMI_FIXED_INTF(0x05c6, 0x9034, 5)}, 1113 {QMI_FIXED_INTF(0x05c6, 0x9034, 6)}, 1114 {QMI_FIXED_INTF(0x05c6, 0x9034, 7)}, 1115 {QMI_FIXED_INTF(0x05c6, 0x9035, 4)}, 1116 {QMI_FIXED_INTF(0x05c6, 0x9036, 3)}, 1117 {QMI_FIXED_INTF(0x05c6, 0x9037, 5)}, 1118 {QMI_FIXED_INTF(0x05c6, 0x9038, 4)}, 1119 {QMI_FIXED_INTF(0x05c6, 0x903b, 7)}, 1120 {QMI_FIXED_INTF(0x05c6, 0x903c, 6)}, 1121 {QMI_FIXED_INTF(0x05c6, 0x903d, 6)}, 1122 {QMI_FIXED_INTF(0x05c6, 0x903e, 5)}, 1123 {QMI_FIXED_INTF(0x05c6, 0x9043, 3)}, 1124 {QMI_FIXED_INTF(0x05c6, 0x9046, 3)}, 1125 {QMI_FIXED_INTF(0x05c6, 0x9046, 4)}, 1126 {QMI_FIXED_INTF(0x05c6, 0x9046, 5)}, 1127 {QMI_FIXED_INTF(0x05c6, 0x9047, 2)}, 1128 {QMI_FIXED_INTF(0x05c6, 0x9047, 3)}, 1129 {QMI_FIXED_INTF(0x05c6, 0x9047, 4)}, 1130 {QMI_FIXED_INTF(0x05c6, 0x9048, 4)}, 1131 {QMI_FIXED_INTF(0x05c6, 0x9048, 5)}, 1132 {QMI_FIXED_INTF(0x05c6, 0x9048, 6)}, 1133 {QMI_FIXED_INTF(0x05c6, 0x9048, 7)}, 1134 {QMI_FIXED_INTF(0x05c6, 0x9048, 8)}, 1135 {QMI_FIXED_INTF(0x05c6, 0x904c, 5)}, 1136 {QMI_FIXED_INTF(0x05c6, 0x904c, 6)}, 1137 {QMI_FIXED_INTF(0x05c6, 0x904c, 7)}, 1138 {QMI_FIXED_INTF(0x05c6, 0x904c, 8)}, 1139 {QMI_FIXED_INTF(0x05c6, 0x9050, 3)}, 1140 {QMI_FIXED_INTF(0x05c6, 0x9052, 4)}, 1141 {QMI_FIXED_INTF(0x05c6, 0x9053, 6)}, 1142 {QMI_FIXED_INTF(0x05c6, 0x9053, 7)}, 1143 {QMI_FIXED_INTF(0x05c6, 0x9054, 5)}, 1144 {QMI_FIXED_INTF(0x05c6, 0x9054, 6)}, 1145 {QMI_FIXED_INTF(0x05c6, 0x9055, 3)}, 1146 {QMI_FIXED_INTF(0x05c6, 0x9055, 4)}, 1147 {QMI_FIXED_INTF(0x05c6, 0x9055, 5)}, 1148 {QMI_FIXED_INTF(0x05c6, 0x9055, 6)}, 1149 {QMI_FIXED_INTF(0x05c6, 0x9055, 7)}, 1150 {QMI_FIXED_INTF(0x05c6, 0x9056, 3)}, 1151 {QMI_FIXED_INTF(0x05c6, 0x9062, 2)}, 1152 {QMI_FIXED_INTF(0x05c6, 0x9062, 3)}, 1153 {QMI_FIXED_INTF(0x05c6, 0x9062, 4)}, 1154 {QMI_FIXED_INTF(0x05c6, 0x9062, 5)}, 1155 {QMI_FIXED_INTF(0x05c6, 0x9062, 6)}, 1156 {QMI_FIXED_INTF(0x05c6, 0x9062, 7)}, 1157 {QMI_FIXED_INTF(0x05c6, 0x9062, 8)}, 1158 {QMI_FIXED_INTF(0x05c6, 0x9062, 9)}, 1159 {QMI_FIXED_INTF(0x05c6, 0x9064, 3)}, 1160 {QMI_FIXED_INTF(0x05c6, 0x9065, 6)}, 1161 {QMI_FIXED_INTF(0x05c6, 0x9065, 7)}, 1162 {QMI_FIXED_INTF(0x05c6, 0x9066, 5)}, 1163 {QMI_FIXED_INTF(0x05c6, 0x9066, 6)}, 1164 {QMI_FIXED_INTF(0x05c6, 0x9067, 1)}, 1165 {QMI_FIXED_INTF(0x05c6, 0x9068, 2)}, 1166 {QMI_FIXED_INTF(0x05c6, 0x9068, 3)}, 1167 {QMI_FIXED_INTF(0x05c6, 0x9068, 4)}, 1168 {QMI_FIXED_INTF(0x05c6, 0x9068, 5)}, 1169 {QMI_FIXED_INTF(0x05c6, 0x9068, 6)}, 1170 {QMI_FIXED_INTF(0x05c6, 0x9068, 7)}, 1171 {QMI_FIXED_INTF(0x05c6, 0x9069, 5)}, 1172 {QMI_FIXED_INTF(0x05c6, 0x9069, 6)}, 1173 {QMI_FIXED_INTF(0x05c6, 0x9069, 7)}, 1174 {QMI_FIXED_INTF(0x05c6, 0x9069, 8)}, 1175 {QMI_FIXED_INTF(0x05c6, 0x9070, 4)}, 1176 {QMI_FIXED_INTF(0x05c6, 0x9070, 5)}, 1177 {QMI_FIXED_INTF(0x05c6, 0x9075, 5)}, 1178 {QMI_FIXED_INTF(0x05c6, 0x9076, 4)}, 1179 {QMI_FIXED_INTF(0x05c6, 0x9076, 5)}, 1180 {QMI_FIXED_INTF(0x05c6, 0x9076, 6)}, 1181 {QMI_FIXED_INTF(0x05c6, 0x9076, 7)}, 1182 {QMI_FIXED_INTF(0x05c6, 0x9076, 8)}, 1183 {QMI_FIXED_INTF(0x05c6, 0x9077, 3)}, 1184 {QMI_FIXED_INTF(0x05c6, 0x9077, 4)}, 1185 {QMI_FIXED_INTF(0x05c6, 0x9077, 5)}, 1186 {QMI_FIXED_INTF(0x05c6, 0x9077, 6)}, 1187 {QMI_FIXED_INTF(0x05c6, 0x9078, 3)}, 1188 {QMI_FIXED_INTF(0x05c6, 0x9079, 4)}, 1189 {QMI_FIXED_INTF(0x05c6, 0x9079, 5)}, 1190 {QMI_FIXED_INTF(0x05c6, 0x9079, 6)}, 1191 {QMI_FIXED_INTF(0x05c6, 0x9079, 7)}, 1192 {QMI_FIXED_INTF(0x05c6, 0x9079, 8)}, 1193 {QMI_FIXED_INTF(0x05c6, 0x9080, 5)}, 1194 {QMI_FIXED_INTF(0x05c6, 0x9080, 6)}, 1195 {QMI_FIXED_INTF(0x05c6, 0x9080, 7)}, 1196 {QMI_FIXED_INTF(0x05c6, 0x9080, 8)}, 1197 {QMI_FIXED_INTF(0x05c6, 0x9083, 3)}, 1198 {QMI_FIXED_INTF(0x05c6, 0x9084, 4)}, 1199 {QMI_FIXED_INTF(0x05c6, 0x90b2, 3)}, /* ublox R410M */ 1200 {QMI_FIXED_INTF(0x05c6, 0x920d, 0)}, 1201 {QMI_FIXED_INTF(0x05c6, 0x920d, 5)}, 1202 {QMI_QUIRK_SET_DTR(0x05c6, 0x9625, 4)}, /* YUGA CLM920-NC5 */ 1203 {QMI_FIXED_INTF(0x0846, 0x68a2, 8)}, 1204 {QMI_FIXED_INTF(0x0846, 0x68d3, 8)}, /* Netgear Aircard 779S */ 1205 {QMI_FIXED_INTF(0x12d1, 0x140c, 1)}, /* Huawei E173 */ 1206 {QMI_FIXED_INTF(0x12d1, 0x14ac, 1)}, /* Huawei E1820 */ 1207 {QMI_FIXED_INTF(0x1435, 0x0918, 3)}, /* Wistron NeWeb D16Q1 */ 1208 {QMI_FIXED_INTF(0x1435, 0x0918, 4)}, /* Wistron NeWeb D16Q1 */ 1209 {QMI_FIXED_INTF(0x1435, 0x0918, 5)}, /* Wistron NeWeb D16Q1 */ 1210 {QMI_FIXED_INTF(0x1435, 0x3185, 4)}, /* Wistron NeWeb M18Q5 */ 1211 {QMI_FIXED_INTF(0x1435, 0xd111, 4)}, /* M9615A DM11-1 D51QC */ 1212 {QMI_FIXED_INTF(0x1435, 0xd181, 3)}, /* Wistron NeWeb D18Q1 */ 1213 {QMI_FIXED_INTF(0x1435, 0xd181, 4)}, /* Wistron NeWeb D18Q1 */ 1214 {QMI_FIXED_INTF(0x1435, 0xd181, 5)}, /* Wistron NeWeb D18Q1 */ 1215 {QMI_FIXED_INTF(0x1435, 0xd182, 4)}, /* Wistron NeWeb D18 */ 1216 {QMI_FIXED_INTF(0x1435, 0xd182, 5)}, /* Wistron NeWeb D18 */ 1217 {QMI_FIXED_INTF(0x1435, 0xd191, 4)}, /* Wistron NeWeb D19Q1 */ 1218 {QMI_QUIRK_SET_DTR(0x1508, 0x1001, 4)}, /* Fibocom NL668 series */ 1219 {QMI_FIXED_INTF(0x16d8, 0x6003, 0)}, /* CMOTech 6003 */ 1220 {QMI_FIXED_INTF(0x16d8, 0x6007, 0)}, /* CMOTech CHE-628S */ 1221 {QMI_FIXED_INTF(0x16d8, 0x6008, 0)}, /* CMOTech CMU-301 */ 1222 {QMI_FIXED_INTF(0x16d8, 0x6280, 0)}, /* CMOTech CHU-628 */ 1223 {QMI_FIXED_INTF(0x16d8, 0x7001, 0)}, /* CMOTech CHU-720S */ 1224 {QMI_FIXED_INTF(0x16d8, 0x7002, 0)}, /* CMOTech 7002 */ 1225 {QMI_FIXED_INTF(0x16d8, 0x7003, 4)}, /* CMOTech CHU-629K */ 1226 {QMI_FIXED_INTF(0x16d8, 0x7004, 3)}, /* CMOTech 7004 */ 1227 {QMI_FIXED_INTF(0x16d8, 0x7006, 5)}, /* CMOTech CGU-629 */ 1228 {QMI_FIXED_INTF(0x16d8, 0x700a, 4)}, /* CMOTech CHU-629S */ 1229 {QMI_FIXED_INTF(0x16d8, 0x7211, 0)}, /* CMOTech CHU-720I */ 1230 {QMI_FIXED_INTF(0x16d8, 0x7212, 0)}, /* CMOTech 7212 */ 1231 {QMI_FIXED_INTF(0x16d8, 0x7213, 0)}, /* CMOTech 7213 */ 1232 {QMI_FIXED_INTF(0x16d8, 0x7251, 1)}, /* CMOTech 7251 */ 1233 {QMI_FIXED_INTF(0x16d8, 0x7252, 1)}, /* CMOTech 7252 */ 1234 {QMI_FIXED_INTF(0x16d8, 0x7253, 1)}, /* CMOTech 7253 */ 1235 {QMI_FIXED_INTF(0x19d2, 0x0002, 1)}, 1236 {QMI_FIXED_INTF(0x19d2, 0x0012, 1)}, 1237 {QMI_FIXED_INTF(0x19d2, 0x0017, 3)}, 1238 {QMI_FIXED_INTF(0x19d2, 0x0019, 3)}, /* ONDA MT689DC */ 1239 {QMI_FIXED_INTF(0x19d2, 0x0021, 4)}, 1240 {QMI_FIXED_INTF(0x19d2, 0x0025, 1)}, 1241 {QMI_FIXED_INTF(0x19d2, 0x0031, 4)}, 1242 {QMI_FIXED_INTF(0x19d2, 0x0042, 4)}, 1243 {QMI_FIXED_INTF(0x19d2, 0x0049, 5)}, 1244 {QMI_FIXED_INTF(0x19d2, 0x0052, 4)}, 1245 {QMI_FIXED_INTF(0x19d2, 0x0055, 1)}, /* ZTE (Vodafone) K3520-Z */ 1246 {QMI_FIXED_INTF(0x19d2, 0x0058, 4)}, 1247 {QMI_FIXED_INTF(0x19d2, 0x0063, 4)}, /* ZTE (Vodafone) K3565-Z */ 1248 {QMI_FIXED_INTF(0x19d2, 0x0104, 4)}, /* ZTE (Vodafone) K4505-Z */ 1249 {QMI_FIXED_INTF(0x19d2, 0x0113, 5)}, 1250 {QMI_FIXED_INTF(0x19d2, 0x0118, 5)}, 1251 {QMI_FIXED_INTF(0x19d2, 0x0121, 5)}, 1252 {QMI_FIXED_INTF(0x19d2, 0x0123, 4)}, 1253 {QMI_FIXED_INTF(0x19d2, 0x0124, 5)}, 1254 {QMI_FIXED_INTF(0x19d2, 0x0125, 6)}, 1255 {QMI_FIXED_INTF(0x19d2, 0x0126, 5)}, 1256 {QMI_FIXED_INTF(0x19d2, 0x0130, 1)}, 1257 {QMI_FIXED_INTF(0x19d2, 0x0133, 3)}, 1258 {QMI_FIXED_INTF(0x19d2, 0x0141, 5)}, 1259 {QMI_FIXED_INTF(0x19d2, 0x0157, 5)}, /* ZTE MF683 */ 1260 {QMI_FIXED_INTF(0x19d2, 0x0158, 3)}, 1261 {QMI_FIXED_INTF(0x19d2, 0x0167, 4)}, /* ZTE MF820D */ 1262 {QMI_FIXED_INTF(0x19d2, 0x0168, 4)}, 1263 {QMI_FIXED_INTF(0x19d2, 0x0176, 3)}, 1264 {QMI_FIXED_INTF(0x19d2, 0x0178, 3)}, 1265 {QMI_FIXED_INTF(0x19d2, 0x0191, 4)}, /* ZTE EuFi890 */ 1266 {QMI_FIXED_INTF(0x19d2, 0x0199, 1)}, /* ZTE MF820S */ 1267 {QMI_FIXED_INTF(0x19d2, 0x0200, 1)}, 1268 {QMI_FIXED_INTF(0x19d2, 0x0257, 3)}, /* ZTE MF821 */ 1269 {QMI_FIXED_INTF(0x19d2, 0x0265, 4)}, /* ONDA MT8205 4G LTE */ 1270 {QMI_FIXED_INTF(0x19d2, 0x0284, 4)}, /* ZTE MF880 */ 1271 {QMI_FIXED_INTF(0x19d2, 0x0326, 4)}, /* ZTE MF821D */ 1272 {QMI_FIXED_INTF(0x19d2, 0x0396, 3)}, /* ZTE ZM8620 */ 1273 {QMI_FIXED_INTF(0x19d2, 0x0412, 4)}, /* Telewell TW-LTE 4G */ 1274 {QMI_FIXED_INTF(0x19d2, 0x1008, 4)}, /* ZTE (Vodafone) K3570-Z */ 1275 {QMI_FIXED_INTF(0x19d2, 0x1010, 4)}, /* ZTE (Vodafone) K3571-Z */ 1276 {QMI_FIXED_INTF(0x19d2, 0x1012, 4)}, 1277 {QMI_FIXED_INTF(0x19d2, 0x1018, 3)}, /* ZTE (Vodafone) K5006-Z */ 1278 {QMI_FIXED_INTF(0x19d2, 0x1021, 2)}, 1279 {QMI_FIXED_INTF(0x19d2, 0x1245, 4)}, 1280 {QMI_FIXED_INTF(0x19d2, 0x1247, 4)}, 1281 {QMI_FIXED_INTF(0x19d2, 0x1252, 4)}, 1282 {QMI_FIXED_INTF(0x19d2, 0x1254, 4)}, 1283 {QMI_FIXED_INTF(0x19d2, 0x1255, 3)}, 1284 {QMI_FIXED_INTF(0x19d2, 0x1255, 4)}, 1285 {QMI_FIXED_INTF(0x19d2, 0x1256, 4)}, 1286 {QMI_FIXED_INTF(0x19d2, 0x1270, 5)}, /* ZTE MF667 */ 1287 {QMI_FIXED_INTF(0x19d2, 0x1401, 2)}, 1288 {QMI_FIXED_INTF(0x19d2, 0x1402, 2)}, /* ZTE MF60 */ 1289 {QMI_FIXED_INTF(0x19d2, 0x1424, 2)}, 1290 {QMI_FIXED_INTF(0x19d2, 0x1425, 2)}, 1291 {QMI_FIXED_INTF(0x19d2, 0x1426, 2)}, /* ZTE MF91 */ 1292 {QMI_FIXED_INTF(0x19d2, 0x1428, 2)}, /* Telewell TW-LTE 4G v2 */ 1293 {QMI_FIXED_INTF(0x19d2, 0x1432, 3)}, /* ZTE ME3620 */ 1294 {QMI_FIXED_INTF(0x19d2, 0x2002, 4)}, /* ZTE (Vodafone) K3765-Z */ 1295 {QMI_FIXED_INTF(0x2001, 0x7e16, 3)}, /* D-Link DWM-221 */ 1296 {QMI_FIXED_INTF(0x2001, 0x7e19, 4)}, /* D-Link DWM-221 B1 */ 1297 {QMI_FIXED_INTF(0x2001, 0x7e35, 4)}, /* D-Link DWM-222 */ 1298 {QMI_FIXED_INTF(0x2020, 0x2031, 4)}, /* Olicard 600 */ 1299 {QMI_FIXED_INTF(0x2020, 0x2033, 4)}, /* BroadMobi BM806U */ 1300 {QMI_FIXED_INTF(0x0f3d, 0x68a2, 8)}, /* Sierra Wireless MC7700 */ 1301 {QMI_FIXED_INTF(0x114f, 0x68a2, 8)}, /* Sierra Wireless MC7750 */ 1302 {QMI_FIXED_INTF(0x1199, 0x68a2, 8)}, /* Sierra Wireless MC7710 in QMI mode */ 1303 {QMI_FIXED_INTF(0x1199, 0x68a2, 19)}, /* Sierra Wireless MC7710 in QMI mode */ 1304 {QMI_QUIRK_SET_DTR(0x1199, 0x68c0, 8)}, /* Sierra Wireless MC7304/MC7354, WP76xx */ 1305 {QMI_QUIRK_SET_DTR(0x1199, 0x68c0, 10)},/* Sierra Wireless MC7304/MC7354 */ 1306 {QMI_FIXED_INTF(0x1199, 0x901c, 8)}, /* Sierra Wireless EM7700 */ 1307 {QMI_FIXED_INTF(0x1199, 0x901f, 8)}, /* Sierra Wireless EM7355 */ 1308 {QMI_FIXED_INTF(0x1199, 0x9041, 8)}, /* Sierra Wireless MC7305/MC7355 */ 1309 {QMI_FIXED_INTF(0x1199, 0x9041, 10)}, /* Sierra Wireless MC7305/MC7355 */ 1310 {QMI_FIXED_INTF(0x1199, 0x9051, 8)}, /* Netgear AirCard 340U */ 1311 {QMI_FIXED_INTF(0x1199, 0x9053, 8)}, /* Sierra Wireless Modem */ 1312 {QMI_FIXED_INTF(0x1199, 0x9054, 8)}, /* Sierra Wireless Modem */ 1313 {QMI_FIXED_INTF(0x1199, 0x9055, 8)}, /* Netgear AirCard 341U */ 1314 {QMI_FIXED_INTF(0x1199, 0x9056, 8)}, /* Sierra Wireless Modem */ 1315 {QMI_FIXED_INTF(0x1199, 0x9057, 8)}, 1316 {QMI_FIXED_INTF(0x1199, 0x9061, 8)}, /* Sierra Wireless Modem */ 1317 {QMI_FIXED_INTF(0x1199, 0x9063, 8)}, /* Sierra Wireless EM7305 */ 1318 {QMI_FIXED_INTF(0x1199, 0x9063, 10)}, /* Sierra Wireless EM7305 */ 1319 {QMI_QUIRK_SET_DTR(0x1199, 0x9071, 8)}, /* Sierra Wireless MC74xx */ 1320 {QMI_QUIRK_SET_DTR(0x1199, 0x9071, 10)},/* Sierra Wireless MC74xx */ 1321 {QMI_QUIRK_SET_DTR(0x1199, 0x9079, 8)}, /* Sierra Wireless EM74xx */ 1322 {QMI_QUIRK_SET_DTR(0x1199, 0x9079, 10)},/* Sierra Wireless EM74xx */ 1323 {QMI_QUIRK_SET_DTR(0x1199, 0x907b, 8)}, /* Sierra Wireless EM74xx */ 1324 {QMI_QUIRK_SET_DTR(0x1199, 0x907b, 10)},/* Sierra Wireless EM74xx */ 1325 {QMI_QUIRK_SET_DTR(0x1199, 0x9091, 8)}, /* Sierra Wireless EM7565 */ 1326 {QMI_FIXED_INTF(0x1bbb, 0x011e, 4)}, /* Telekom Speedstick LTE II (Alcatel One Touch L100V LTE) */ 1327 {QMI_FIXED_INTF(0x1bbb, 0x0203, 2)}, /* Alcatel L800MA */ 1328 {QMI_FIXED_INTF(0x2357, 0x0201, 4)}, /* TP-LINK HSUPA Modem MA180 */ 1329 {QMI_FIXED_INTF(0x2357, 0x9000, 4)}, /* TP-LINK MA260 */ 1330 {QMI_QUIRK_SET_DTR(0x1bc7, 0x1040, 2)}, /* Telit LE922A */ 1331 {QMI_FIXED_INTF(0x1bc7, 0x1100, 3)}, /* Telit ME910 */ 1332 {QMI_FIXED_INTF(0x1bc7, 0x1101, 3)}, /* Telit ME910 dual modem */ 1333 {QMI_FIXED_INTF(0x1bc7, 0x1200, 5)}, /* Telit LE920 */ 1334 {QMI_QUIRK_SET_DTR(0x1bc7, 0x1201, 2)}, /* Telit LE920, LE920A4 */ 1335 {QMI_QUIRK_SET_DTR(0x1bc7, 0x1260, 2)}, /* Telit LE910Cx */ 1336 {QMI_QUIRK_SET_DTR(0x1bc7, 0x1261, 2)}, /* Telit LE910Cx */ 1337 {QMI_QUIRK_SET_DTR(0x1bc7, 0x1900, 1)}, /* Telit LN940 series */ 1338 {QMI_FIXED_INTF(0x1c9e, 0x9801, 3)}, /* Telewell TW-3G HSPA+ */ 1339 {QMI_FIXED_INTF(0x1c9e, 0x9803, 4)}, /* Telewell TW-3G HSPA+ */ 1340 {QMI_FIXED_INTF(0x1c9e, 0x9b01, 3)}, /* XS Stick W100-2 from 4G Systems */ 1341 {QMI_FIXED_INTF(0x0b3c, 0xc000, 4)}, /* Olivetti Olicard 100 */ 1342 {QMI_FIXED_INTF(0x0b3c, 0xc001, 4)}, /* Olivetti Olicard 120 */ 1343 {QMI_FIXED_INTF(0x0b3c, 0xc002, 4)}, /* Olivetti Olicard 140 */ 1344 {QMI_FIXED_INTF(0x0b3c, 0xc004, 6)}, /* Olivetti Olicard 155 */ 1345 {QMI_FIXED_INTF(0x0b3c, 0xc005, 6)}, /* Olivetti Olicard 200 */ 1346 {QMI_FIXED_INTF(0x0b3c, 0xc00a, 6)}, /* Olivetti Olicard 160 */ 1347 {QMI_FIXED_INTF(0x0b3c, 0xc00b, 4)}, /* Olivetti Olicard 500 */ 1348 {QMI_FIXED_INTF(0x1e2d, 0x0060, 4)}, /* Cinterion PLxx */ 1349 {QMI_FIXED_INTF(0x1e2d, 0x0053, 4)}, /* Cinterion PHxx,PXxx */ 1350 {QMI_FIXED_INTF(0x1e2d, 0x0063, 10)}, /* Cinterion ALASxx (1 RmNet) */ 1351 {QMI_FIXED_INTF(0x1e2d, 0x0082, 4)}, /* Cinterion PHxx,PXxx (2 RmNet) */ 1352 {QMI_FIXED_INTF(0x1e2d, 0x0082, 5)}, /* Cinterion PHxx,PXxx (2 RmNet) */ 1353 {QMI_FIXED_INTF(0x1e2d, 0x0083, 4)}, /* Cinterion PHxx,PXxx (1 RmNet + USB Audio)*/ 1354 {QMI_FIXED_INTF(0x413c, 0x81a2, 8)}, /* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card */ 1355 {QMI_FIXED_INTF(0x413c, 0x81a3, 8)}, /* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card */ 1356 {QMI_FIXED_INTF(0x413c, 0x81a4, 8)}, /* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card */ 1357 {QMI_FIXED_INTF(0x413c, 0x81a8, 8)}, /* Dell Wireless 5808 Gobi(TM) 4G LTE Mobile Broadband Card */ 1358 {QMI_FIXED_INTF(0x413c, 0x81a9, 8)}, /* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card */ 1359 {QMI_FIXED_INTF(0x413c, 0x81b1, 8)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card */ 1360 {QMI_FIXED_INTF(0x413c, 0x81b3, 8)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */ 1361 {QMI_FIXED_INTF(0x413c, 0x81b6, 8)}, /* Dell Wireless 5811e */ 1362 {QMI_FIXED_INTF(0x413c, 0x81b6, 10)}, /* Dell Wireless 5811e */ 1363 {QMI_FIXED_INTF(0x413c, 0x81d7, 0)}, /* Dell Wireless 5821e */ 1364 {QMI_FIXED_INTF(0x03f0, 0x4e1d, 8)}, /* HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module */ 1365 {QMI_FIXED_INTF(0x03f0, 0x9d1d, 1)}, /* HP lt4120 Snapdragon X5 LTE */ 1366 {QMI_FIXED_INTF(0x22de, 0x9061, 3)}, /* WeTelecom WPD-600N */ 1367 {QMI_QUIRK_SET_DTR(0x1e0e, 0x9001, 5)}, /* SIMCom 7100E, 7230E, 7600E ++ */ 1368 {QMI_QUIRK_SET_DTR(0x2c7c, 0x0121, 4)}, /* Quectel EC21 Mini PCIe */ 1369 {QMI_QUIRK_SET_DTR(0x2c7c, 0x0191, 4)}, /* Quectel EG91 */ 1370 {QMI_FIXED_INTF(0x2c7c, 0x0296, 4)}, /* Quectel BG96 */ 1371 {QMI_QUIRK_SET_DTR(0x2cb7, 0x0104, 4)}, /* Fibocom NL678 series */ 1372 1373 /* 4. Gobi 1000 devices */ 1374 {QMI_GOBI1K_DEVICE(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */ 1375 {QMI_GOBI1K_DEVICE(0x03f0, 0x1f1d)}, /* HP un2400 Gobi Modem Device */ 1376 {QMI_GOBI1K_DEVICE(0x04da, 0x250d)}, /* Panasonic Gobi Modem device */ 1377 {QMI_GOBI1K_DEVICE(0x413c, 0x8172)}, /* Dell Gobi Modem device */ 1378 {QMI_GOBI1K_DEVICE(0x1410, 0xa001)}, /* Novatel/Verizon USB-1000 */ 1379 {QMI_GOBI1K_DEVICE(0x1410, 0xa002)}, /* Novatel Gobi Modem device */ 1380 {QMI_GOBI1K_DEVICE(0x1410, 0xa003)}, /* Novatel Gobi Modem device */ 1381 {QMI_GOBI1K_DEVICE(0x1410, 0xa004)}, /* Novatel Gobi Modem device */ 1382 {QMI_GOBI1K_DEVICE(0x1410, 0xa005)}, /* Novatel Gobi Modem device */ 1383 {QMI_GOBI1K_DEVICE(0x1410, 0xa006)}, /* Novatel Gobi Modem device */ 1384 {QMI_GOBI1K_DEVICE(0x1410, 0xa007)}, /* Novatel Gobi Modem device */ 1385 {QMI_GOBI1K_DEVICE(0x0b05, 0x1776)}, /* Asus Gobi Modem device */ 1386 {QMI_GOBI1K_DEVICE(0x19d2, 0xfff3)}, /* ONDA Gobi Modem device */ 1387 {QMI_GOBI1K_DEVICE(0x05c6, 0x9001)}, /* Generic Gobi Modem device */ 1388 {QMI_GOBI1K_DEVICE(0x05c6, 0x9002)}, /* Generic Gobi Modem device */ 1389 {QMI_GOBI1K_DEVICE(0x05c6, 0x9202)}, /* Generic Gobi Modem device */ 1390 {QMI_GOBI1K_DEVICE(0x05c6, 0x9203)}, /* Generic Gobi Modem device */ 1391 {QMI_GOBI1K_DEVICE(0x05c6, 0x9222)}, /* Generic Gobi Modem device */ 1392 {QMI_GOBI1K_DEVICE(0x05c6, 0x9009)}, /* Generic Gobi Modem device */ 1393 1394 /* 5. Gobi 2000 and 3000 devices */ 1395 {QMI_GOBI_DEVICE(0x413c, 0x8186)}, /* Dell Gobi 2000 Modem device (N0218, VU936) */ 1396 {QMI_GOBI_DEVICE(0x413c, 0x8194)}, /* Dell Gobi 3000 Composite */ 1397 {QMI_GOBI_DEVICE(0x05c6, 0x920b)}, /* Generic Gobi 2000 Modem device */ 1398 {QMI_GOBI_DEVICE(0x05c6, 0x9225)}, /* Sony Gobi 2000 Modem device (N0279, VU730) */ 1399 {QMI_GOBI_DEVICE(0x05c6, 0x9245)}, /* Samsung Gobi 2000 Modem device (VL176) */ 1400 {QMI_GOBI_DEVICE(0x03f0, 0x251d)}, /* HP Gobi 2000 Modem device (VP412) */ 1401 {QMI_GOBI_DEVICE(0x05c6, 0x9215)}, /* Acer Gobi 2000 Modem device (VP413) */ 1402 {QMI_FIXED_INTF(0x05c6, 0x9215, 4)}, /* Quectel EC20 Mini PCIe */ 1403 {QMI_GOBI_DEVICE(0x05c6, 0x9265)}, /* Asus Gobi 2000 Modem device (VR305) */ 1404 {QMI_GOBI_DEVICE(0x05c6, 0x9235)}, /* Top Global Gobi 2000 Modem device (VR306) */ 1405 {QMI_GOBI_DEVICE(0x05c6, 0x9275)}, /* iRex Technologies Gobi 2000 Modem device (VR307) */ 1406 {QMI_GOBI_DEVICE(0x0af0, 0x8120)}, /* Option GTM681W */ 1407 {QMI_GOBI_DEVICE(0x1199, 0x68a5)}, /* Sierra Wireless Modem */ 1408 {QMI_GOBI_DEVICE(0x1199, 0x68a9)}, /* Sierra Wireless Modem */ 1409 {QMI_GOBI_DEVICE(0x1199, 0x9001)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 1410 {QMI_GOBI_DEVICE(0x1199, 0x9002)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 1411 {QMI_GOBI_DEVICE(0x1199, 0x9003)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 1412 {QMI_GOBI_DEVICE(0x1199, 0x9004)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 1413 {QMI_GOBI_DEVICE(0x1199, 0x9005)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 1414 {QMI_GOBI_DEVICE(0x1199, 0x9006)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 1415 {QMI_GOBI_DEVICE(0x1199, 0x9007)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 1416 {QMI_GOBI_DEVICE(0x1199, 0x9008)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 1417 {QMI_GOBI_DEVICE(0x1199, 0x9009)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 1418 {QMI_GOBI_DEVICE(0x1199, 0x900a)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 1419 {QMI_GOBI_DEVICE(0x1199, 0x9011)}, /* Sierra Wireless Gobi 2000 Modem device (MC8305) */ 1420 {QMI_GOBI_DEVICE(0x16d8, 0x8002)}, /* CMDTech Gobi 2000 Modem device (VU922) */ 1421 {QMI_GOBI_DEVICE(0x05c6, 0x9205)}, /* Gobi 2000 Modem device */ 1422 {QMI_GOBI_DEVICE(0x1199, 0x9013)}, /* Sierra Wireless Gobi 3000 Modem device (MC8355) */ 1423 {QMI_GOBI_DEVICE(0x03f0, 0x371d)}, /* HP un2430 Mobile Broadband Module */ 1424 {QMI_GOBI_DEVICE(0x1199, 0x9015)}, /* Sierra Wireless Gobi 3000 Modem device */ 1425 {QMI_GOBI_DEVICE(0x1199, 0x9019)}, /* Sierra Wireless Gobi 3000 Modem device */ 1426 {QMI_GOBI_DEVICE(0x1199, 0x901b)}, /* Sierra Wireless MC7770 */ 1427 {QMI_GOBI_DEVICE(0x12d1, 0x14f1)}, /* Sony Gobi 3000 Composite */ 1428 {QMI_GOBI_DEVICE(0x1410, 0xa021)}, /* Foxconn Gobi 3000 Modem device (Novatel E396) */ 1429 1430 { } /* END */ 1431 }; 1432 MODULE_DEVICE_TABLE(usb, products); 1433 1434 static bool quectel_ec20_detected(struct usb_interface *intf) 1435 { 1436 struct usb_device *dev = interface_to_usbdev(intf); 1437 1438 if (dev->actconfig && 1439 le16_to_cpu(dev->descriptor.idVendor) == 0x05c6 && 1440 le16_to_cpu(dev->descriptor.idProduct) == 0x9215 && 1441 dev->actconfig->desc.bNumInterfaces == 5) 1442 return true; 1443 1444 return false; 1445 } 1446 1447 static int qmi_wwan_probe(struct usb_interface *intf, 1448 const struct usb_device_id *prod) 1449 { 1450 struct usb_device_id *id = (struct usb_device_id *)prod; 1451 struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc; 1452 const struct driver_info *info; 1453 1454 /* Workaround to enable dynamic IDs. This disables usbnet 1455 * blacklisting functionality. Which, if required, can be 1456 * reimplemented here by using a magic "blacklist" value 1457 * instead of 0 in the static device id table 1458 */ 1459 if (!id->driver_info) { 1460 dev_dbg(&intf->dev, "setting defaults for dynamic device id\n"); 1461 id->driver_info = (unsigned long)&qmi_wwan_info; 1462 } 1463 1464 /* There are devices where the same interface number can be 1465 * configured as different functions. We should only bind to 1466 * vendor specific functions when matching on interface number 1467 */ 1468 if (id->match_flags & USB_DEVICE_ID_MATCH_INT_NUMBER && 1469 desc->bInterfaceClass != USB_CLASS_VENDOR_SPEC) { 1470 dev_dbg(&intf->dev, 1471 "Rejecting interface number match for class %02x\n", 1472 desc->bInterfaceClass); 1473 return -ENODEV; 1474 } 1475 1476 /* Quectel EC20 quirk where we've QMI on interface 4 instead of 0 */ 1477 if (quectel_ec20_detected(intf) && desc->bInterfaceNumber == 0) { 1478 dev_dbg(&intf->dev, "Quectel EC20 quirk, skipping interface 0\n"); 1479 return -ENODEV; 1480 } 1481 1482 /* Several Quectel modems supports dynamic interface configuration, so 1483 * we need to match on class/subclass/protocol. These values are 1484 * identical for the diagnostic- and QMI-interface, but bNumEndpoints is 1485 * different. Ignore the current interface if the number of endpoints 1486 * equals the number for the diag interface (two). 1487 */ 1488 info = (void *)&id->driver_info; 1489 1490 if (info->data & QMI_WWAN_QUIRK_QUECTEL_DYNCFG) { 1491 if (desc->bNumEndpoints == 2) 1492 return -ENODEV; 1493 } 1494 1495 return usbnet_probe(intf, id); 1496 } 1497 1498 static void qmi_wwan_disconnect(struct usb_interface *intf) 1499 { 1500 struct usbnet *dev = usb_get_intfdata(intf); 1501 struct qmi_wwan_state *info; 1502 struct list_head *iter; 1503 struct net_device *ldev; 1504 LIST_HEAD(list); 1505 1506 /* called twice if separate control and data intf */ 1507 if (!dev) 1508 return; 1509 info = (void *)&dev->data; 1510 if (info->flags & QMI_WWAN_FLAG_MUX) { 1511 if (!rtnl_trylock()) { 1512 restart_syscall(); 1513 return; 1514 } 1515 rcu_read_lock(); 1516 netdev_for_each_upper_dev_rcu(dev->net, ldev, iter) 1517 qmimux_unregister_device(ldev, &list); 1518 rcu_read_unlock(); 1519 unregister_netdevice_many(&list); 1520 rtnl_unlock(); 1521 info->flags &= ~QMI_WWAN_FLAG_MUX; 1522 } 1523 usbnet_disconnect(intf); 1524 } 1525 1526 static struct usb_driver qmi_wwan_driver = { 1527 .name = "qmi_wwan", 1528 .id_table = products, 1529 .probe = qmi_wwan_probe, 1530 .disconnect = qmi_wwan_disconnect, 1531 .suspend = qmi_wwan_suspend, 1532 .resume = qmi_wwan_resume, 1533 .reset_resume = qmi_wwan_resume, 1534 .supports_autosuspend = 1, 1535 .disable_hub_initiated_lpm = 1, 1536 }; 1537 1538 module_usb_driver(qmi_wwan_driver); 1539 1540 MODULE_AUTHOR("Bjørn Mork <bjorn@mork.no>"); 1541 MODULE_DESCRIPTION("Qualcomm MSM Interface (QMI) WWAN driver"); 1542 MODULE_LICENSE("GPL"); 1543