1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (c) 2012 Bjørn Mork <bjorn@mork.no>
4 *
5 * The probing code is heavily inspired by cdc_ether, which is:
6 * Copyright (C) 2003-2005 by David Brownell
7 * Copyright (C) 2006 by Ole Andre Vadla Ravnas (ActiveSync)
8 */
9
10 #include <linux/module.h>
11 #include <linux/sched/signal.h>
12 #include <linux/netdevice.h>
13 #include <linux/ethtool.h>
14 #include <linux/etherdevice.h>
15 #include <linux/if_arp.h>
16 #include <linux/mii.h>
17 #include <linux/rtnetlink.h>
18 #include <linux/usb.h>
19 #include <linux/usb/cdc.h>
20 #include <linux/usb/usbnet.h>
21 #include <linux/usb/cdc-wdm.h>
22 #include <linux/u64_stats_sync.h>
23
24 /* This driver supports wwan (3G/LTE/?) devices using a vendor
25 * specific management protocol called Qualcomm MSM Interface (QMI) -
26 * in addition to the more common AT commands over serial interface
27 * management
28 *
29 * QMI is wrapped in CDC, using CDC encapsulated commands on the
30 * control ("master") interface of a two-interface CDC Union
31 * resembling standard CDC ECM. The devices do not use the control
32 * interface for any other CDC messages. Most likely because the
33 * management protocol is used in place of the standard CDC
34 * notifications NOTIFY_NETWORK_CONNECTION and NOTIFY_SPEED_CHANGE
35 *
36 * Alternatively, control and data functions can be combined in a
37 * single USB interface.
38 *
39 * Handling a protocol like QMI is out of the scope for any driver.
40 * It is exported as a character device using the cdc-wdm driver as
41 * a subdriver, enabling userspace applications ("modem managers") to
42 * handle it.
43 *
44 * These devices may alternatively/additionally be configured using AT
45 * commands on a serial interface
46 */
47
48 /* driver specific data */
49 struct qmi_wwan_state {
50 struct usb_driver *subdriver;
51 atomic_t pmcount;
52 unsigned long flags;
53 struct usb_interface *control;
54 struct usb_interface *data;
55 };
56
57 enum qmi_wwan_flags {
58 QMI_WWAN_FLAG_RAWIP = 1 << 0,
59 QMI_WWAN_FLAG_MUX = 1 << 1,
60 };
61
62 enum qmi_wwan_quirks {
63 QMI_WWAN_QUIRK_DTR = 1 << 0, /* needs "set DTR" request */
64 };
65
66 struct qmimux_hdr {
67 u8 pad;
68 u8 mux_id;
69 __be16 pkt_len;
70 };
71
72 struct qmimux_priv {
73 struct net_device *real_dev;
74 u8 mux_id;
75 struct pcpu_sw_netstats __percpu *stats64;
76 };
77
qmimux_open(struct net_device * dev)78 static int qmimux_open(struct net_device *dev)
79 {
80 struct qmimux_priv *priv = netdev_priv(dev);
81 struct net_device *real_dev = priv->real_dev;
82
83 if (!(priv->real_dev->flags & IFF_UP))
84 return -ENETDOWN;
85
86 if (netif_carrier_ok(real_dev))
87 netif_carrier_on(dev);
88 return 0;
89 }
90
qmimux_stop(struct net_device * dev)91 static int qmimux_stop(struct net_device *dev)
92 {
93 netif_carrier_off(dev);
94 return 0;
95 }
96
qmimux_start_xmit(struct sk_buff * skb,struct net_device * dev)97 static netdev_tx_t qmimux_start_xmit(struct sk_buff *skb, struct net_device *dev)
98 {
99 struct qmimux_priv *priv = netdev_priv(dev);
100 unsigned int len = skb->len;
101 struct qmimux_hdr *hdr;
102 netdev_tx_t ret;
103
104 hdr = skb_push(skb, sizeof(struct qmimux_hdr));
105 hdr->pad = 0;
106 hdr->mux_id = priv->mux_id;
107 hdr->pkt_len = cpu_to_be16(len);
108 skb->dev = priv->real_dev;
109 ret = dev_queue_xmit(skb);
110
111 if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) {
112 struct pcpu_sw_netstats *stats64 = this_cpu_ptr(priv->stats64);
113
114 u64_stats_update_begin(&stats64->syncp);
115 stats64->tx_packets++;
116 stats64->tx_bytes += len;
117 u64_stats_update_end(&stats64->syncp);
118 } else {
119 dev->stats.tx_dropped++;
120 }
121
122 return ret;
123 }
124
qmimux_get_stats64(struct net_device * net,struct rtnl_link_stats64 * stats)125 static void qmimux_get_stats64(struct net_device *net,
126 struct rtnl_link_stats64 *stats)
127 {
128 struct qmimux_priv *priv = netdev_priv(net);
129
130 netdev_stats_to_stats64(stats, &net->stats);
131 dev_fetch_sw_netstats(stats, priv->stats64);
132 }
133
134 static const struct net_device_ops qmimux_netdev_ops = {
135 .ndo_open = qmimux_open,
136 .ndo_stop = qmimux_stop,
137 .ndo_start_xmit = qmimux_start_xmit,
138 .ndo_get_stats64 = qmimux_get_stats64,
139 };
140
qmimux_setup(struct net_device * dev)141 static void qmimux_setup(struct net_device *dev)
142 {
143 dev->header_ops = NULL; /* No header */
144 dev->type = ARPHRD_NONE;
145 dev->hard_header_len = 0;
146 dev->addr_len = 0;
147 dev->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST;
148 dev->netdev_ops = &qmimux_netdev_ops;
149 dev->mtu = 1500;
150 dev->needs_free_netdev = true;
151 }
152
qmimux_find_dev(struct usbnet * dev,u8 mux_id)153 static struct net_device *qmimux_find_dev(struct usbnet *dev, u8 mux_id)
154 {
155 struct qmimux_priv *priv;
156 struct list_head *iter;
157 struct net_device *ldev;
158
159 rcu_read_lock();
160 netdev_for_each_upper_dev_rcu(dev->net, ldev, iter) {
161 priv = netdev_priv(ldev);
162 if (priv->mux_id == mux_id) {
163 rcu_read_unlock();
164 return ldev;
165 }
166 }
167 rcu_read_unlock();
168 return NULL;
169 }
170
qmimux_has_slaves(struct usbnet * dev)171 static bool qmimux_has_slaves(struct usbnet *dev)
172 {
173 return !list_empty(&dev->net->adj_list.upper);
174 }
175
qmimux_rx_fixup(struct usbnet * dev,struct sk_buff * skb)176 static int qmimux_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
177 {
178 unsigned int len, offset = 0, pad_len, pkt_len;
179 struct qmimux_hdr *hdr;
180 struct net_device *net;
181 struct sk_buff *skbn;
182 u8 qmimux_hdr_sz = sizeof(*hdr);
183
184 while (offset + qmimux_hdr_sz < skb->len) {
185 hdr = (struct qmimux_hdr *)(skb->data + offset);
186 len = be16_to_cpu(hdr->pkt_len);
187
188 /* drop the packet, bogus length */
189 if (offset + len + qmimux_hdr_sz > skb->len)
190 return 0;
191
192 /* control packet, we do not know what to do */
193 if (hdr->pad & 0x80)
194 goto skip;
195
196 /* extract padding length and check for valid length info */
197 pad_len = hdr->pad & 0x3f;
198 if (len == 0 || pad_len >= len)
199 goto skip;
200 pkt_len = len - pad_len;
201
202 net = qmimux_find_dev(dev, hdr->mux_id);
203 if (!net)
204 goto skip;
205 skbn = netdev_alloc_skb(net, pkt_len);
206 if (!skbn)
207 return 0;
208 skbn->dev = net;
209
210 switch (skb->data[offset + qmimux_hdr_sz] & 0xf0) {
211 case 0x40:
212 skbn->protocol = htons(ETH_P_IP);
213 break;
214 case 0x60:
215 skbn->protocol = htons(ETH_P_IPV6);
216 break;
217 default:
218 /* not ip - do not know what to do */
219 goto skip;
220 }
221
222 skb_put_data(skbn, skb->data + offset + qmimux_hdr_sz, pkt_len);
223 if (netif_rx(skbn) != NET_RX_SUCCESS) {
224 net->stats.rx_errors++;
225 return 0;
226 } else {
227 struct pcpu_sw_netstats *stats64;
228 struct qmimux_priv *priv = netdev_priv(net);
229
230 stats64 = this_cpu_ptr(priv->stats64);
231 u64_stats_update_begin(&stats64->syncp);
232 stats64->rx_packets++;
233 stats64->rx_bytes += pkt_len;
234 u64_stats_update_end(&stats64->syncp);
235 }
236
237 skip:
238 offset += len + qmimux_hdr_sz;
239 }
240 return 1;
241 }
242
qmimux_register_device(struct net_device * real_dev,u8 mux_id)243 static int qmimux_register_device(struct net_device *real_dev, u8 mux_id)
244 {
245 struct net_device *new_dev;
246 struct qmimux_priv *priv;
247 int err;
248
249 new_dev = alloc_netdev(sizeof(struct qmimux_priv),
250 "qmimux%d", NET_NAME_UNKNOWN, qmimux_setup);
251 if (!new_dev)
252 return -ENOBUFS;
253
254 dev_net_set(new_dev, dev_net(real_dev));
255 priv = netdev_priv(new_dev);
256 priv->mux_id = mux_id;
257 priv->real_dev = real_dev;
258
259 priv->stats64 = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
260 if (!priv->stats64) {
261 err = -ENOBUFS;
262 goto out_free_newdev;
263 }
264
265 err = register_netdevice(new_dev);
266 if (err < 0)
267 goto out_free_newdev;
268
269 /* Account for reference in struct qmimux_priv_priv */
270 dev_hold(real_dev);
271
272 err = netdev_upper_dev_link(real_dev, new_dev, NULL);
273 if (err)
274 goto out_unregister_netdev;
275
276 netif_stacked_transfer_operstate(real_dev, new_dev);
277
278 return 0;
279
280 out_unregister_netdev:
281 unregister_netdevice(new_dev);
282 dev_put(real_dev);
283
284 out_free_newdev:
285 free_netdev(new_dev);
286 return err;
287 }
288
qmimux_unregister_device(struct net_device * dev,struct list_head * head)289 static void qmimux_unregister_device(struct net_device *dev,
290 struct list_head *head)
291 {
292 struct qmimux_priv *priv = netdev_priv(dev);
293 struct net_device *real_dev = priv->real_dev;
294
295 free_percpu(priv->stats64);
296 netdev_upper_dev_unlink(real_dev, dev);
297 unregister_netdevice_queue(dev, head);
298
299 /* Get rid of the reference to real_dev */
300 dev_put(real_dev);
301 }
302
qmi_wwan_netdev_setup(struct net_device * net)303 static void qmi_wwan_netdev_setup(struct net_device *net)
304 {
305 struct usbnet *dev = netdev_priv(net);
306 struct qmi_wwan_state *info = (void *)&dev->data;
307
308 if (info->flags & QMI_WWAN_FLAG_RAWIP) {
309 net->header_ops = NULL; /* No header */
310 net->type = ARPHRD_NONE;
311 net->hard_header_len = 0;
312 net->addr_len = 0;
313 net->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST;
314 set_bit(EVENT_NO_IP_ALIGN, &dev->flags);
315 netdev_dbg(net, "mode: raw IP\n");
316 } else if (!net->header_ops) { /* don't bother if already set */
317 ether_setup(net);
318 /* Restoring min/max mtu values set originally by usbnet */
319 net->min_mtu = 0;
320 net->max_mtu = ETH_MAX_MTU;
321 clear_bit(EVENT_NO_IP_ALIGN, &dev->flags);
322 netdev_dbg(net, "mode: Ethernet\n");
323 }
324
325 /* recalculate buffers after changing hard_header_len */
326 usbnet_change_mtu(net, net->mtu);
327 }
328
raw_ip_show(struct device * d,struct device_attribute * attr,char * buf)329 static ssize_t raw_ip_show(struct device *d, struct device_attribute *attr, char *buf)
330 {
331 struct usbnet *dev = netdev_priv(to_net_dev(d));
332 struct qmi_wwan_state *info = (void *)&dev->data;
333
334 return sprintf(buf, "%c\n", info->flags & QMI_WWAN_FLAG_RAWIP ? 'Y' : 'N');
335 }
336
raw_ip_store(struct device * d,struct device_attribute * attr,const char * buf,size_t len)337 static ssize_t raw_ip_store(struct device *d, struct device_attribute *attr, const char *buf, size_t len)
338 {
339 struct usbnet *dev = netdev_priv(to_net_dev(d));
340 struct qmi_wwan_state *info = (void *)&dev->data;
341 bool enable;
342 int ret;
343
344 if (strtobool(buf, &enable))
345 return -EINVAL;
346
347 /* no change? */
348 if (enable == (info->flags & QMI_WWAN_FLAG_RAWIP))
349 return len;
350
351 if (!rtnl_trylock())
352 return restart_syscall();
353
354 /* we don't want to modify a running netdev */
355 if (netif_running(dev->net)) {
356 netdev_err(dev->net, "Cannot change a running device\n");
357 ret = -EBUSY;
358 goto err;
359 }
360
361 /* let other drivers deny the change */
362 ret = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev->net);
363 ret = notifier_to_errno(ret);
364 if (ret) {
365 netdev_err(dev->net, "Type change was refused\n");
366 goto err;
367 }
368
369 if (enable)
370 info->flags |= QMI_WWAN_FLAG_RAWIP;
371 else
372 info->flags &= ~QMI_WWAN_FLAG_RAWIP;
373 qmi_wwan_netdev_setup(dev->net);
374 call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev->net);
375 ret = len;
376 err:
377 rtnl_unlock();
378 return ret;
379 }
380
add_mux_show(struct device * d,struct device_attribute * attr,char * buf)381 static ssize_t add_mux_show(struct device *d, struct device_attribute *attr, char *buf)
382 {
383 struct net_device *dev = to_net_dev(d);
384 struct qmimux_priv *priv;
385 struct list_head *iter;
386 struct net_device *ldev;
387 ssize_t count = 0;
388
389 rcu_read_lock();
390 netdev_for_each_upper_dev_rcu(dev, ldev, iter) {
391 priv = netdev_priv(ldev);
392 count += scnprintf(&buf[count], PAGE_SIZE - count,
393 "0x%02x\n", priv->mux_id);
394 }
395 rcu_read_unlock();
396 return count;
397 }
398
add_mux_store(struct device * d,struct device_attribute * attr,const char * buf,size_t len)399 static ssize_t add_mux_store(struct device *d, struct device_attribute *attr, const char *buf, size_t len)
400 {
401 struct usbnet *dev = netdev_priv(to_net_dev(d));
402 struct qmi_wwan_state *info = (void *)&dev->data;
403 u8 mux_id;
404 int ret;
405
406 if (kstrtou8(buf, 0, &mux_id))
407 return -EINVAL;
408
409 /* mux_id [1 - 254] for compatibility with ip(8) and the rmnet driver */
410 if (mux_id < 1 || mux_id > 254)
411 return -EINVAL;
412
413 if (!rtnl_trylock())
414 return restart_syscall();
415
416 if (qmimux_find_dev(dev, mux_id)) {
417 netdev_err(dev->net, "mux_id already present\n");
418 ret = -EINVAL;
419 goto err;
420 }
421
422 ret = qmimux_register_device(dev->net, mux_id);
423 if (!ret) {
424 info->flags |= QMI_WWAN_FLAG_MUX;
425 ret = len;
426 }
427 err:
428 rtnl_unlock();
429 return ret;
430 }
431
del_mux_show(struct device * d,struct device_attribute * attr,char * buf)432 static ssize_t del_mux_show(struct device *d, struct device_attribute *attr, char *buf)
433 {
434 return add_mux_show(d, attr, buf);
435 }
436
del_mux_store(struct device * d,struct device_attribute * attr,const char * buf,size_t len)437 static ssize_t del_mux_store(struct device *d, struct device_attribute *attr, const char *buf, size_t len)
438 {
439 struct usbnet *dev = netdev_priv(to_net_dev(d));
440 struct qmi_wwan_state *info = (void *)&dev->data;
441 struct net_device *del_dev;
442 u8 mux_id;
443 int ret = 0;
444
445 if (kstrtou8(buf, 0, &mux_id))
446 return -EINVAL;
447
448 if (!rtnl_trylock())
449 return restart_syscall();
450
451 del_dev = qmimux_find_dev(dev, mux_id);
452 if (!del_dev) {
453 netdev_err(dev->net, "mux_id not present\n");
454 ret = -EINVAL;
455 goto err;
456 }
457 qmimux_unregister_device(del_dev, NULL);
458
459 if (!qmimux_has_slaves(dev))
460 info->flags &= ~QMI_WWAN_FLAG_MUX;
461 ret = len;
462 err:
463 rtnl_unlock();
464 return ret;
465 }
466
467 static DEVICE_ATTR_RW(raw_ip);
468 static DEVICE_ATTR_RW(add_mux);
469 static DEVICE_ATTR_RW(del_mux);
470
471 static struct attribute *qmi_wwan_sysfs_attrs[] = {
472 &dev_attr_raw_ip.attr,
473 &dev_attr_add_mux.attr,
474 &dev_attr_del_mux.attr,
475 NULL,
476 };
477
478 static struct attribute_group qmi_wwan_sysfs_attr_group = {
479 .name = "qmi",
480 .attrs = qmi_wwan_sysfs_attrs,
481 };
482
483 /* default ethernet address used by the modem */
484 static const u8 default_modem_addr[ETH_ALEN] = {0x02, 0x50, 0xf3};
485
486 static const u8 buggy_fw_addr[ETH_ALEN] = {0x00, 0xa0, 0xc6, 0x00, 0x00, 0x00};
487
488 /* Make up an ethernet header if the packet doesn't have one.
489 *
490 * A firmware bug common among several devices cause them to send raw
491 * IP packets under some circumstances. There is no way for the
492 * driver/host to know when this will happen. And even when the bug
493 * hits, some packets will still arrive with an intact header.
494 *
495 * The supported devices are only capably of sending IPv4, IPv6 and
496 * ARP packets on a point-to-point link. Any packet with an ethernet
497 * header will have either our address or a broadcast/multicast
498 * address as destination. ARP packets will always have a header.
499 *
500 * This means that this function will reliably add the appropriate
501 * header iff necessary, provided our hardware address does not start
502 * with 4 or 6.
503 *
504 * Another common firmware bug results in all packets being addressed
505 * to 00:a0:c6:00:00:00 despite the host address being different.
506 * This function will also fixup such packets.
507 */
qmi_wwan_rx_fixup(struct usbnet * dev,struct sk_buff * skb)508 static int qmi_wwan_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
509 {
510 struct qmi_wwan_state *info = (void *)&dev->data;
511 bool rawip = info->flags & QMI_WWAN_FLAG_RAWIP;
512 __be16 proto;
513
514 /* This check is no longer done by usbnet */
515 if (skb->len < dev->net->hard_header_len)
516 return 0;
517
518 if (info->flags & QMI_WWAN_FLAG_MUX)
519 return qmimux_rx_fixup(dev, skb);
520
521 switch (skb->data[0] & 0xf0) {
522 case 0x40:
523 proto = htons(ETH_P_IP);
524 break;
525 case 0x60:
526 proto = htons(ETH_P_IPV6);
527 break;
528 case 0x00:
529 if (rawip)
530 return 0;
531 if (is_multicast_ether_addr(skb->data))
532 return 1;
533 /* possibly bogus destination - rewrite just in case */
534 skb_reset_mac_header(skb);
535 goto fix_dest;
536 default:
537 if (rawip)
538 return 0;
539 /* pass along other packets without modifications */
540 return 1;
541 }
542 if (rawip) {
543 skb_reset_mac_header(skb);
544 skb->dev = dev->net; /* normally set by eth_type_trans */
545 skb->protocol = proto;
546 return 1;
547 }
548
549 if (skb_headroom(skb) < ETH_HLEN)
550 return 0;
551 skb_push(skb, ETH_HLEN);
552 skb_reset_mac_header(skb);
553 eth_hdr(skb)->h_proto = proto;
554 eth_zero_addr(eth_hdr(skb)->h_source);
555 fix_dest:
556 memcpy(eth_hdr(skb)->h_dest, dev->net->dev_addr, ETH_ALEN);
557 return 1;
558 }
559
560 /* very simplistic detection of IPv4 or IPv6 headers */
possibly_iphdr(const char * data)561 static bool possibly_iphdr(const char *data)
562 {
563 return (data[0] & 0xd0) == 0x40;
564 }
565
566 /* disallow addresses which may be confused with IP headers */
qmi_wwan_mac_addr(struct net_device * dev,void * p)567 static int qmi_wwan_mac_addr(struct net_device *dev, void *p)
568 {
569 int ret;
570 struct sockaddr *addr = p;
571
572 ret = eth_prepare_mac_addr_change(dev, p);
573 if (ret < 0)
574 return ret;
575 if (possibly_iphdr(addr->sa_data))
576 return -EADDRNOTAVAIL;
577 eth_commit_mac_addr_change(dev, p);
578 return 0;
579 }
580
581 static const struct net_device_ops qmi_wwan_netdev_ops = {
582 .ndo_open = usbnet_open,
583 .ndo_stop = usbnet_stop,
584 .ndo_start_xmit = usbnet_start_xmit,
585 .ndo_tx_timeout = usbnet_tx_timeout,
586 .ndo_change_mtu = usbnet_change_mtu,
587 .ndo_get_stats64 = usbnet_get_stats64,
588 .ndo_set_mac_address = qmi_wwan_mac_addr,
589 .ndo_validate_addr = eth_validate_addr,
590 };
591
592 /* using a counter to merge subdriver requests with our own into a
593 * combined state
594 */
qmi_wwan_manage_power(struct usbnet * dev,int on)595 static int qmi_wwan_manage_power(struct usbnet *dev, int on)
596 {
597 struct qmi_wwan_state *info = (void *)&dev->data;
598 int rv;
599
600 dev_dbg(&dev->intf->dev, "%s() pmcount=%d, on=%d\n", __func__,
601 atomic_read(&info->pmcount), on);
602
603 if ((on && atomic_add_return(1, &info->pmcount) == 1) ||
604 (!on && atomic_dec_and_test(&info->pmcount))) {
605 /* need autopm_get/put here to ensure the usbcore sees
606 * the new value
607 */
608 rv = usb_autopm_get_interface(dev->intf);
609 dev->intf->needs_remote_wakeup = on;
610 if (!rv)
611 usb_autopm_put_interface(dev->intf);
612 }
613 return 0;
614 }
615
qmi_wwan_cdc_wdm_manage_power(struct usb_interface * intf,int on)616 static int qmi_wwan_cdc_wdm_manage_power(struct usb_interface *intf, int on)
617 {
618 struct usbnet *dev = usb_get_intfdata(intf);
619
620 /* can be called while disconnecting */
621 if (!dev)
622 return 0;
623 return qmi_wwan_manage_power(dev, on);
624 }
625
626 /* collect all three endpoints and register subdriver */
qmi_wwan_register_subdriver(struct usbnet * dev)627 static int qmi_wwan_register_subdriver(struct usbnet *dev)
628 {
629 int rv;
630 struct usb_driver *subdriver = NULL;
631 struct qmi_wwan_state *info = (void *)&dev->data;
632
633 /* collect bulk endpoints */
634 rv = usbnet_get_endpoints(dev, info->data);
635 if (rv < 0)
636 goto err;
637
638 /* update status endpoint if separate control interface */
639 if (info->control != info->data)
640 dev->status = &info->control->cur_altsetting->endpoint[0];
641
642 /* require interrupt endpoint for subdriver */
643 if (!dev->status) {
644 rv = -EINVAL;
645 goto err;
646 }
647
648 /* for subdriver power management */
649 atomic_set(&info->pmcount, 0);
650
651 /* register subdriver */
652 subdriver = usb_cdc_wdm_register(info->control, &dev->status->desc,
653 4096, &qmi_wwan_cdc_wdm_manage_power);
654 if (IS_ERR(subdriver)) {
655 dev_err(&info->control->dev, "subdriver registration failed\n");
656 rv = PTR_ERR(subdriver);
657 goto err;
658 }
659
660 /* prevent usbnet from using status endpoint */
661 dev->status = NULL;
662
663 /* save subdriver struct for suspend/resume wrappers */
664 info->subdriver = subdriver;
665
666 err:
667 return rv;
668 }
669
670 /* Send CDC SetControlLineState request, setting or clearing the DTR.
671 * "Required for Autoconnect and 9x30 to wake up" according to the
672 * GobiNet driver. The requirement has been verified on an MDM9230
673 * based Sierra Wireless MC7455
674 */
qmi_wwan_change_dtr(struct usbnet * dev,bool on)675 static int qmi_wwan_change_dtr(struct usbnet *dev, bool on)
676 {
677 u8 intf = dev->intf->cur_altsetting->desc.bInterfaceNumber;
678
679 return usbnet_write_cmd(dev, USB_CDC_REQ_SET_CONTROL_LINE_STATE,
680 USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
681 on ? 0x01 : 0x00, intf, NULL, 0);
682 }
683
qmi_wwan_bind(struct usbnet * dev,struct usb_interface * intf)684 static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
685 {
686 int status;
687 u8 *buf = intf->cur_altsetting->extra;
688 int len = intf->cur_altsetting->extralen;
689 struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc;
690 struct usb_cdc_union_desc *cdc_union;
691 struct usb_cdc_ether_desc *cdc_ether;
692 struct usb_driver *driver = driver_of(intf);
693 struct qmi_wwan_state *info = (void *)&dev->data;
694 struct usb_cdc_parsed_header hdr;
695
696 BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) <
697 sizeof(struct qmi_wwan_state)));
698
699 /* set up initial state */
700 info->control = intf;
701 info->data = intf;
702
703 /* and a number of CDC descriptors */
704 cdc_parse_cdc_header(&hdr, intf, buf, len);
705 cdc_union = hdr.usb_cdc_union_desc;
706 cdc_ether = hdr.usb_cdc_ether_desc;
707
708 /* Use separate control and data interfaces if we found a CDC Union */
709 if (cdc_union) {
710 info->data = usb_ifnum_to_if(dev->udev,
711 cdc_union->bSlaveInterface0);
712 if (desc->bInterfaceNumber != cdc_union->bMasterInterface0 ||
713 !info->data) {
714 dev_err(&intf->dev,
715 "bogus CDC Union: master=%u, slave=%u\n",
716 cdc_union->bMasterInterface0,
717 cdc_union->bSlaveInterface0);
718
719 /* ignore and continue... */
720 cdc_union = NULL;
721 info->data = intf;
722 }
723 }
724
725 /* errors aren't fatal - we can live with the dynamic address */
726 if (cdc_ether && cdc_ether->wMaxSegmentSize) {
727 dev->hard_mtu = le16_to_cpu(cdc_ether->wMaxSegmentSize);
728 usbnet_get_ethernet_addr(dev, cdc_ether->iMACAddress);
729 }
730
731 /* claim data interface and set it up */
732 if (info->control != info->data) {
733 status = usb_driver_claim_interface(driver, info->data, dev);
734 if (status < 0)
735 goto err;
736 }
737
738 status = qmi_wwan_register_subdriver(dev);
739 if (status < 0 && info->control != info->data) {
740 usb_set_intfdata(info->data, NULL);
741 usb_driver_release_interface(driver, info->data);
742 }
743
744 /* disabling remote wakeup on MDM9x30 devices has the same
745 * effect as clearing DTR. The device will not respond to QMI
746 * requests until we set DTR again. This is similar to a
747 * QMI_CTL SYNC request, clearing a lot of firmware state
748 * including the client ID allocations.
749 *
750 * Our usage model allows a session to span multiple
751 * open/close events, so we must prevent the firmware from
752 * clearing out state the clients might need.
753 *
754 * MDM9x30 is the first QMI chipset with USB3 support. Abuse
755 * this fact to enable the quirk for all USB3 devices.
756 *
757 * There are also chipsets with the same "set DTR" requirement
758 * but without USB3 support. Devices based on these chips
759 * need a quirk flag in the device ID table.
760 */
761 if (dev->driver_info->data & QMI_WWAN_QUIRK_DTR ||
762 le16_to_cpu(dev->udev->descriptor.bcdUSB) >= 0x0201) {
763 qmi_wwan_manage_power(dev, 1);
764 qmi_wwan_change_dtr(dev, true);
765 }
766
767 /* Never use the same address on both ends of the link, even if the
768 * buggy firmware told us to. Or, if device is assigned the well-known
769 * buggy firmware MAC address, replace it with a random address,
770 */
771 if (ether_addr_equal(dev->net->dev_addr, default_modem_addr) ||
772 ether_addr_equal(dev->net->dev_addr, buggy_fw_addr))
773 eth_hw_addr_random(dev->net);
774
775 /* make MAC addr easily distinguishable from an IP header */
776 if (possibly_iphdr(dev->net->dev_addr)) {
777 dev->net->dev_addr[0] |= 0x02; /* set local assignment bit */
778 dev->net->dev_addr[0] &= 0xbf; /* clear "IP" bit */
779 }
780 dev->net->netdev_ops = &qmi_wwan_netdev_ops;
781 dev->net->sysfs_groups[0] = &qmi_wwan_sysfs_attr_group;
782 err:
783 return status;
784 }
785
qmi_wwan_unbind(struct usbnet * dev,struct usb_interface * intf)786 static void qmi_wwan_unbind(struct usbnet *dev, struct usb_interface *intf)
787 {
788 struct qmi_wwan_state *info = (void *)&dev->data;
789 struct usb_driver *driver = driver_of(intf);
790 struct usb_interface *other;
791
792 if (info->subdriver && info->subdriver->disconnect)
793 info->subdriver->disconnect(info->control);
794
795 /* disable MDM9x30 quirk */
796 if (le16_to_cpu(dev->udev->descriptor.bcdUSB) >= 0x0201) {
797 qmi_wwan_change_dtr(dev, false);
798 qmi_wwan_manage_power(dev, 0);
799 }
800
801 /* allow user to unbind using either control or data */
802 if (intf == info->control)
803 other = info->data;
804 else
805 other = info->control;
806
807 /* only if not shared */
808 if (other && intf != other) {
809 usb_set_intfdata(other, NULL);
810 usb_driver_release_interface(driver, other);
811 }
812
813 info->subdriver = NULL;
814 info->data = NULL;
815 info->control = NULL;
816 }
817
818 /* suspend/resume wrappers calling both usbnet and the cdc-wdm
819 * subdriver if present.
820 *
821 * NOTE: cdc-wdm also supports pre/post_reset, but we cannot provide
822 * wrappers for those without adding usbnet reset support first.
823 */
qmi_wwan_suspend(struct usb_interface * intf,pm_message_t message)824 static int qmi_wwan_suspend(struct usb_interface *intf, pm_message_t message)
825 {
826 struct usbnet *dev = usb_get_intfdata(intf);
827 struct qmi_wwan_state *info = (void *)&dev->data;
828 int ret;
829
830 /* Both usbnet_suspend() and subdriver->suspend() MUST return 0
831 * in system sleep context, otherwise, the resume callback has
832 * to recover device from previous suspend failure.
833 */
834 ret = usbnet_suspend(intf, message);
835 if (ret < 0)
836 goto err;
837
838 if (intf == info->control && info->subdriver &&
839 info->subdriver->suspend)
840 ret = info->subdriver->suspend(intf, message);
841 if (ret < 0)
842 usbnet_resume(intf);
843 err:
844 return ret;
845 }
846
qmi_wwan_resume(struct usb_interface * intf)847 static int qmi_wwan_resume(struct usb_interface *intf)
848 {
849 struct usbnet *dev = usb_get_intfdata(intf);
850 struct qmi_wwan_state *info = (void *)&dev->data;
851 int ret = 0;
852 bool callsub = (intf == info->control && info->subdriver &&
853 info->subdriver->resume);
854
855 if (callsub)
856 ret = info->subdriver->resume(intf);
857 if (ret < 0)
858 goto err;
859 ret = usbnet_resume(intf);
860 if (ret < 0 && callsub)
861 info->subdriver->suspend(intf, PMSG_SUSPEND);
862 err:
863 return ret;
864 }
865
866 static const struct driver_info qmi_wwan_info = {
867 .description = "WWAN/QMI device",
868 .flags = FLAG_WWAN | FLAG_SEND_ZLP,
869 .bind = qmi_wwan_bind,
870 .unbind = qmi_wwan_unbind,
871 .manage_power = qmi_wwan_manage_power,
872 .rx_fixup = qmi_wwan_rx_fixup,
873 };
874
875 static const struct driver_info qmi_wwan_info_quirk_dtr = {
876 .description = "WWAN/QMI device",
877 .flags = FLAG_WWAN | FLAG_SEND_ZLP,
878 .bind = qmi_wwan_bind,
879 .unbind = qmi_wwan_unbind,
880 .manage_power = qmi_wwan_manage_power,
881 .rx_fixup = qmi_wwan_rx_fixup,
882 .data = QMI_WWAN_QUIRK_DTR,
883 };
884
885 #define HUAWEI_VENDOR_ID 0x12D1
886
887 /* map QMI/wwan function by a fixed interface number */
888 #define QMI_FIXED_INTF(vend, prod, num) \
889 USB_DEVICE_INTERFACE_NUMBER(vend, prod, num), \
890 .driver_info = (unsigned long)&qmi_wwan_info
891
892 /* devices requiring "set DTR" quirk */
893 #define QMI_QUIRK_SET_DTR(vend, prod, num) \
894 USB_DEVICE_INTERFACE_NUMBER(vend, prod, num), \
895 .driver_info = (unsigned long)&qmi_wwan_info_quirk_dtr
896
897 /* Gobi 1000 QMI/wwan interface number is 3 according to qcserial */
898 #define QMI_GOBI1K_DEVICE(vend, prod) \
899 QMI_FIXED_INTF(vend, prod, 3)
900
901 /* Gobi 2000/3000 QMI/wwan interface number is 0 according to qcserial */
902 #define QMI_GOBI_DEVICE(vend, prod) \
903 QMI_FIXED_INTF(vend, prod, 0)
904
905 /* Many devices have QMI and DIAG functions which are distinguishable
906 * from other vendor specific functions by class, subclass and
907 * protocol all being 0xff. The DIAG function has exactly 2 endpoints
908 * and is silently rejected when probed.
909 *
910 * This makes it possible to match dynamically numbered QMI functions
911 * as seen on e.g. many Quectel modems.
912 */
913 #define QMI_MATCH_FF_FF_FF(vend, prod) \
914 USB_DEVICE_AND_INTERFACE_INFO(vend, prod, USB_CLASS_VENDOR_SPEC, \
915 USB_SUBCLASS_VENDOR_SPEC, 0xff), \
916 .driver_info = (unsigned long)&qmi_wwan_info_quirk_dtr
917
918 static const struct usb_device_id products[] = {
919 /* 1. CDC ECM like devices match on the control interface */
920 { /* Huawei E392, E398 and possibly others sharing both device id and more... */
921 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 9),
922 .driver_info = (unsigned long)&qmi_wwan_info,
923 },
924 { /* Vodafone/Huawei K5005 (12d1:14c8) and similar modems */
925 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 57),
926 .driver_info = (unsigned long)&qmi_wwan_info,
927 },
928 { /* HUAWEI_INTERFACE_NDIS_CONTROL_QUALCOMM */
929 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 0x01, 0x69),
930 .driver_info = (unsigned long)&qmi_wwan_info,
931 },
932 { /* Motorola Mapphone devices with MDM6600 */
933 USB_VENDOR_AND_INTERFACE_INFO(0x22b8, USB_CLASS_VENDOR_SPEC, 0xfb, 0xff),
934 .driver_info = (unsigned long)&qmi_wwan_info,
935 },
936
937 /* 2. Combined interface devices matching on class+protocol */
938 { /* Huawei E367 and possibly others in "Windows mode" */
939 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 7),
940 .driver_info = (unsigned long)&qmi_wwan_info,
941 },
942 { /* Huawei E392, E398 and possibly others in "Windows mode" */
943 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 17),
944 .driver_info = (unsigned long)&qmi_wwan_info,
945 },
946 { /* HUAWEI_NDIS_SINGLE_INTERFACE_VDF */
947 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 0x01, 0x37),
948 .driver_info = (unsigned long)&qmi_wwan_info,
949 },
950 { /* HUAWEI_INTERFACE_NDIS_HW_QUALCOMM */
951 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 0x01, 0x67),
952 .driver_info = (unsigned long)&qmi_wwan_info,
953 },
954 { /* Pantech UML290, P4200 and more */
955 USB_VENDOR_AND_INTERFACE_INFO(0x106c, USB_CLASS_VENDOR_SPEC, 0xf0, 0xff),
956 .driver_info = (unsigned long)&qmi_wwan_info,
957 },
958 { /* Pantech UML290 - newer firmware */
959 USB_VENDOR_AND_INTERFACE_INFO(0x106c, USB_CLASS_VENDOR_SPEC, 0xf1, 0xff),
960 .driver_info = (unsigned long)&qmi_wwan_info,
961 },
962 { /* Novatel USB551L and MC551 */
963 USB_DEVICE_AND_INTERFACE_INFO(0x1410, 0xb001,
964 USB_CLASS_COMM,
965 USB_CDC_SUBCLASS_ETHERNET,
966 USB_CDC_PROTO_NONE),
967 .driver_info = (unsigned long)&qmi_wwan_info,
968 },
969 { /* Novatel E362 */
970 USB_DEVICE_AND_INTERFACE_INFO(0x1410, 0x9010,
971 USB_CLASS_COMM,
972 USB_CDC_SUBCLASS_ETHERNET,
973 USB_CDC_PROTO_NONE),
974 .driver_info = (unsigned long)&qmi_wwan_info,
975 },
976 { /* Novatel Expedite E371 */
977 USB_DEVICE_AND_INTERFACE_INFO(0x1410, 0x9011,
978 USB_CLASS_COMM,
979 USB_CDC_SUBCLASS_ETHERNET,
980 USB_CDC_PROTO_NONE),
981 .driver_info = (unsigned long)&qmi_wwan_info,
982 },
983 { /* Dell Wireless 5800 (Novatel E362) */
984 USB_DEVICE_AND_INTERFACE_INFO(0x413C, 0x8195,
985 USB_CLASS_COMM,
986 USB_CDC_SUBCLASS_ETHERNET,
987 USB_CDC_PROTO_NONE),
988 .driver_info = (unsigned long)&qmi_wwan_info,
989 },
990 { /* Dell Wireless 5800 V2 (Novatel E362) */
991 USB_DEVICE_AND_INTERFACE_INFO(0x413C, 0x8196,
992 USB_CLASS_COMM,
993 USB_CDC_SUBCLASS_ETHERNET,
994 USB_CDC_PROTO_NONE),
995 .driver_info = (unsigned long)&qmi_wwan_info,
996 },
997 { /* Dell Wireless 5804 (Novatel E371) */
998 USB_DEVICE_AND_INTERFACE_INFO(0x413C, 0x819b,
999 USB_CLASS_COMM,
1000 USB_CDC_SUBCLASS_ETHERNET,
1001 USB_CDC_PROTO_NONE),
1002 .driver_info = (unsigned long)&qmi_wwan_info,
1003 },
1004 { /* ADU960S */
1005 USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a,
1006 USB_CLASS_COMM,
1007 USB_CDC_SUBCLASS_ETHERNET,
1008 USB_CDC_PROTO_NONE),
1009 .driver_info = (unsigned long)&qmi_wwan_info,
1010 },
1011 { /* HP lt2523 (Novatel E371) */
1012 USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x421d,
1013 USB_CLASS_COMM,
1014 USB_CDC_SUBCLASS_ETHERNET,
1015 USB_CDC_PROTO_NONE),
1016 .driver_info = (unsigned long)&qmi_wwan_info,
1017 },
1018 { /* HP lt4112 LTE/HSPA+ Gobi 4G Module (Huawei me906e) */
1019 USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x581d, USB_CLASS_VENDOR_SPEC, 1, 7),
1020 .driver_info = (unsigned long)&qmi_wwan_info,
1021 },
1022 {QMI_MATCH_FF_FF_FF(0x2c7c, 0x0125)}, /* Quectel EC25, EC20 R2.0 Mini PCIe */
1023 {QMI_MATCH_FF_FF_FF(0x2c7c, 0x0306)}, /* Quectel EP06/EG06/EM06 */
1024 {QMI_MATCH_FF_FF_FF(0x2c7c, 0x0512)}, /* Quectel EG12/EM12 */
1025 {QMI_MATCH_FF_FF_FF(0x2c7c, 0x0620)}, /* Quectel EM160R-GL */
1026 {QMI_MATCH_FF_FF_FF(0x2c7c, 0x0800)}, /* Quectel RM500Q-GL */
1027
1028 /* 3. Combined interface devices matching on interface number */
1029 {QMI_FIXED_INTF(0x0408, 0xea42, 4)}, /* Yota / Megafon M100-1 */
1030 {QMI_FIXED_INTF(0x05c6, 0x6001, 3)}, /* 4G LTE usb-modem U901 */
1031 {QMI_FIXED_INTF(0x05c6, 0x7000, 0)},
1032 {QMI_FIXED_INTF(0x05c6, 0x7001, 1)},
1033 {QMI_FIXED_INTF(0x05c6, 0x7002, 1)},
1034 {QMI_FIXED_INTF(0x05c6, 0x7101, 1)},
1035 {QMI_FIXED_INTF(0x05c6, 0x7101, 2)},
1036 {QMI_FIXED_INTF(0x05c6, 0x7101, 3)},
1037 {QMI_FIXED_INTF(0x05c6, 0x7102, 1)},
1038 {QMI_FIXED_INTF(0x05c6, 0x7102, 2)},
1039 {QMI_FIXED_INTF(0x05c6, 0x7102, 3)},
1040 {QMI_FIXED_INTF(0x05c6, 0x8000, 7)},
1041 {QMI_FIXED_INTF(0x05c6, 0x8001, 6)},
1042 {QMI_FIXED_INTF(0x05c6, 0x9000, 4)},
1043 {QMI_FIXED_INTF(0x05c6, 0x9003, 4)},
1044 {QMI_FIXED_INTF(0x05c6, 0x9005, 2)},
1045 {QMI_FIXED_INTF(0x05c6, 0x900a, 4)},
1046 {QMI_FIXED_INTF(0x05c6, 0x900b, 2)},
1047 {QMI_FIXED_INTF(0x05c6, 0x900c, 4)},
1048 {QMI_FIXED_INTF(0x05c6, 0x900c, 5)},
1049 {QMI_FIXED_INTF(0x05c6, 0x900c, 6)},
1050 {QMI_FIXED_INTF(0x05c6, 0x900d, 5)},
1051 {QMI_FIXED_INTF(0x05c6, 0x900f, 3)},
1052 {QMI_FIXED_INTF(0x05c6, 0x900f, 4)},
1053 {QMI_FIXED_INTF(0x05c6, 0x900f, 5)},
1054 {QMI_FIXED_INTF(0x05c6, 0x9010, 4)},
1055 {QMI_FIXED_INTF(0x05c6, 0x9010, 5)},
1056 {QMI_FIXED_INTF(0x05c6, 0x9011, 3)},
1057 {QMI_FIXED_INTF(0x05c6, 0x9011, 4)},
1058 {QMI_FIXED_INTF(0x05c6, 0x9021, 1)},
1059 {QMI_FIXED_INTF(0x05c6, 0x9022, 2)},
1060 {QMI_QUIRK_SET_DTR(0x05c6, 0x9025, 4)}, /* Alcatel-sbell ASB TL131 TDD LTE (China Mobile) */
1061 {QMI_FIXED_INTF(0x05c6, 0x9026, 3)},
1062 {QMI_FIXED_INTF(0x05c6, 0x902e, 5)},
1063 {QMI_FIXED_INTF(0x05c6, 0x9031, 5)},
1064 {QMI_FIXED_INTF(0x05c6, 0x9032, 4)},
1065 {QMI_FIXED_INTF(0x05c6, 0x9033, 3)},
1066 {QMI_FIXED_INTF(0x05c6, 0x9033, 4)},
1067 {QMI_FIXED_INTF(0x05c6, 0x9033, 5)},
1068 {QMI_FIXED_INTF(0x05c6, 0x9033, 6)},
1069 {QMI_FIXED_INTF(0x05c6, 0x9034, 3)},
1070 {QMI_FIXED_INTF(0x05c6, 0x9034, 4)},
1071 {QMI_FIXED_INTF(0x05c6, 0x9034, 5)},
1072 {QMI_FIXED_INTF(0x05c6, 0x9034, 6)},
1073 {QMI_FIXED_INTF(0x05c6, 0x9034, 7)},
1074 {QMI_FIXED_INTF(0x05c6, 0x9035, 4)},
1075 {QMI_FIXED_INTF(0x05c6, 0x9036, 3)},
1076 {QMI_FIXED_INTF(0x05c6, 0x9037, 5)},
1077 {QMI_FIXED_INTF(0x05c6, 0x9038, 4)},
1078 {QMI_FIXED_INTF(0x05c6, 0x903b, 7)},
1079 {QMI_FIXED_INTF(0x05c6, 0x903c, 6)},
1080 {QMI_FIXED_INTF(0x05c6, 0x903d, 6)},
1081 {QMI_FIXED_INTF(0x05c6, 0x903e, 5)},
1082 {QMI_FIXED_INTF(0x05c6, 0x9043, 3)},
1083 {QMI_FIXED_INTF(0x05c6, 0x9046, 3)},
1084 {QMI_FIXED_INTF(0x05c6, 0x9046, 4)},
1085 {QMI_FIXED_INTF(0x05c6, 0x9046, 5)},
1086 {QMI_FIXED_INTF(0x05c6, 0x9047, 2)},
1087 {QMI_FIXED_INTF(0x05c6, 0x9047, 3)},
1088 {QMI_FIXED_INTF(0x05c6, 0x9047, 4)},
1089 {QMI_FIXED_INTF(0x05c6, 0x9048, 4)},
1090 {QMI_FIXED_INTF(0x05c6, 0x9048, 5)},
1091 {QMI_FIXED_INTF(0x05c6, 0x9048, 6)},
1092 {QMI_FIXED_INTF(0x05c6, 0x9048, 7)},
1093 {QMI_FIXED_INTF(0x05c6, 0x9048, 8)},
1094 {QMI_FIXED_INTF(0x05c6, 0x904c, 5)},
1095 {QMI_FIXED_INTF(0x05c6, 0x904c, 6)},
1096 {QMI_FIXED_INTF(0x05c6, 0x904c, 7)},
1097 {QMI_FIXED_INTF(0x05c6, 0x904c, 8)},
1098 {QMI_FIXED_INTF(0x05c6, 0x9050, 3)},
1099 {QMI_FIXED_INTF(0x05c6, 0x9052, 4)},
1100 {QMI_FIXED_INTF(0x05c6, 0x9053, 6)},
1101 {QMI_FIXED_INTF(0x05c6, 0x9053, 7)},
1102 {QMI_FIXED_INTF(0x05c6, 0x9054, 5)},
1103 {QMI_FIXED_INTF(0x05c6, 0x9054, 6)},
1104 {QMI_FIXED_INTF(0x05c6, 0x9055, 3)},
1105 {QMI_FIXED_INTF(0x05c6, 0x9055, 4)},
1106 {QMI_FIXED_INTF(0x05c6, 0x9055, 5)},
1107 {QMI_FIXED_INTF(0x05c6, 0x9055, 6)},
1108 {QMI_FIXED_INTF(0x05c6, 0x9055, 7)},
1109 {QMI_FIXED_INTF(0x05c6, 0x9056, 3)},
1110 {QMI_FIXED_INTF(0x05c6, 0x9062, 2)},
1111 {QMI_FIXED_INTF(0x05c6, 0x9062, 3)},
1112 {QMI_FIXED_INTF(0x05c6, 0x9062, 4)},
1113 {QMI_FIXED_INTF(0x05c6, 0x9062, 5)},
1114 {QMI_FIXED_INTF(0x05c6, 0x9062, 6)},
1115 {QMI_FIXED_INTF(0x05c6, 0x9062, 7)},
1116 {QMI_FIXED_INTF(0x05c6, 0x9062, 8)},
1117 {QMI_FIXED_INTF(0x05c6, 0x9062, 9)},
1118 {QMI_FIXED_INTF(0x05c6, 0x9064, 3)},
1119 {QMI_FIXED_INTF(0x05c6, 0x9065, 6)},
1120 {QMI_FIXED_INTF(0x05c6, 0x9065, 7)},
1121 {QMI_FIXED_INTF(0x05c6, 0x9066, 5)},
1122 {QMI_FIXED_INTF(0x05c6, 0x9066, 6)},
1123 {QMI_FIXED_INTF(0x05c6, 0x9067, 1)},
1124 {QMI_FIXED_INTF(0x05c6, 0x9068, 2)},
1125 {QMI_FIXED_INTF(0x05c6, 0x9068, 3)},
1126 {QMI_FIXED_INTF(0x05c6, 0x9068, 4)},
1127 {QMI_FIXED_INTF(0x05c6, 0x9068, 5)},
1128 {QMI_FIXED_INTF(0x05c6, 0x9068, 6)},
1129 {QMI_FIXED_INTF(0x05c6, 0x9068, 7)},
1130 {QMI_FIXED_INTF(0x05c6, 0x9069, 5)},
1131 {QMI_FIXED_INTF(0x05c6, 0x9069, 6)},
1132 {QMI_FIXED_INTF(0x05c6, 0x9069, 7)},
1133 {QMI_FIXED_INTF(0x05c6, 0x9069, 8)},
1134 {QMI_FIXED_INTF(0x05c6, 0x9070, 4)},
1135 {QMI_FIXED_INTF(0x05c6, 0x9070, 5)},
1136 {QMI_FIXED_INTF(0x05c6, 0x9075, 5)},
1137 {QMI_FIXED_INTF(0x05c6, 0x9076, 4)},
1138 {QMI_FIXED_INTF(0x05c6, 0x9076, 5)},
1139 {QMI_FIXED_INTF(0x05c6, 0x9076, 6)},
1140 {QMI_FIXED_INTF(0x05c6, 0x9076, 7)},
1141 {QMI_FIXED_INTF(0x05c6, 0x9076, 8)},
1142 {QMI_FIXED_INTF(0x05c6, 0x9077, 3)},
1143 {QMI_FIXED_INTF(0x05c6, 0x9077, 4)},
1144 {QMI_FIXED_INTF(0x05c6, 0x9077, 5)},
1145 {QMI_FIXED_INTF(0x05c6, 0x9077, 6)},
1146 {QMI_FIXED_INTF(0x05c6, 0x9078, 3)},
1147 {QMI_FIXED_INTF(0x05c6, 0x9079, 4)},
1148 {QMI_FIXED_INTF(0x05c6, 0x9079, 5)},
1149 {QMI_FIXED_INTF(0x05c6, 0x9079, 6)},
1150 {QMI_FIXED_INTF(0x05c6, 0x9079, 7)},
1151 {QMI_FIXED_INTF(0x05c6, 0x9079, 8)},
1152 {QMI_FIXED_INTF(0x05c6, 0x9080, 5)},
1153 {QMI_FIXED_INTF(0x05c6, 0x9080, 6)},
1154 {QMI_FIXED_INTF(0x05c6, 0x9080, 7)},
1155 {QMI_FIXED_INTF(0x05c6, 0x9080, 8)},
1156 {QMI_FIXED_INTF(0x05c6, 0x9083, 3)},
1157 {QMI_FIXED_INTF(0x05c6, 0x9084, 4)},
1158 {QMI_FIXED_INTF(0x05c6, 0x90b2, 3)}, /* ublox R410M */
1159 {QMI_FIXED_INTF(0x05c6, 0x920d, 0)},
1160 {QMI_FIXED_INTF(0x05c6, 0x920d, 5)},
1161 {QMI_QUIRK_SET_DTR(0x05c6, 0x9625, 4)}, /* YUGA CLM920-NC5 */
1162 {QMI_FIXED_INTF(0x0846, 0x68a2, 8)},
1163 {QMI_FIXED_INTF(0x0846, 0x68d3, 8)}, /* Netgear Aircard 779S */
1164 {QMI_FIXED_INTF(0x12d1, 0x140c, 1)}, /* Huawei E173 */
1165 {QMI_FIXED_INTF(0x12d1, 0x14ac, 1)}, /* Huawei E1820 */
1166 {QMI_FIXED_INTF(0x1435, 0x0918, 3)}, /* Wistron NeWeb D16Q1 */
1167 {QMI_FIXED_INTF(0x1435, 0x0918, 4)}, /* Wistron NeWeb D16Q1 */
1168 {QMI_FIXED_INTF(0x1435, 0x0918, 5)}, /* Wistron NeWeb D16Q1 */
1169 {QMI_FIXED_INTF(0x1435, 0x3185, 4)}, /* Wistron NeWeb M18Q5 */
1170 {QMI_FIXED_INTF(0x1435, 0xd111, 4)}, /* M9615A DM11-1 D51QC */
1171 {QMI_FIXED_INTF(0x1435, 0xd181, 3)}, /* Wistron NeWeb D18Q1 */
1172 {QMI_FIXED_INTF(0x1435, 0xd181, 4)}, /* Wistron NeWeb D18Q1 */
1173 {QMI_FIXED_INTF(0x1435, 0xd181, 5)}, /* Wistron NeWeb D18Q1 */
1174 {QMI_FIXED_INTF(0x1435, 0xd182, 4)}, /* Wistron NeWeb D18 */
1175 {QMI_FIXED_INTF(0x1435, 0xd182, 5)}, /* Wistron NeWeb D18 */
1176 {QMI_FIXED_INTF(0x1435, 0xd191, 4)}, /* Wistron NeWeb D19Q1 */
1177 {QMI_QUIRK_SET_DTR(0x1508, 0x1001, 4)}, /* Fibocom NL668 series */
1178 {QMI_FIXED_INTF(0x1690, 0x7588, 4)}, /* ASKEY WWHC050 */
1179 {QMI_FIXED_INTF(0x16d8, 0x6003, 0)}, /* CMOTech 6003 */
1180 {QMI_FIXED_INTF(0x16d8, 0x6007, 0)}, /* CMOTech CHE-628S */
1181 {QMI_FIXED_INTF(0x16d8, 0x6008, 0)}, /* CMOTech CMU-301 */
1182 {QMI_FIXED_INTF(0x16d8, 0x6280, 0)}, /* CMOTech CHU-628 */
1183 {QMI_FIXED_INTF(0x16d8, 0x7001, 0)}, /* CMOTech CHU-720S */
1184 {QMI_FIXED_INTF(0x16d8, 0x7002, 0)}, /* CMOTech 7002 */
1185 {QMI_FIXED_INTF(0x16d8, 0x7003, 4)}, /* CMOTech CHU-629K */
1186 {QMI_FIXED_INTF(0x16d8, 0x7004, 3)}, /* CMOTech 7004 */
1187 {QMI_FIXED_INTF(0x16d8, 0x7006, 5)}, /* CMOTech CGU-629 */
1188 {QMI_FIXED_INTF(0x16d8, 0x700a, 4)}, /* CMOTech CHU-629S */
1189 {QMI_FIXED_INTF(0x16d8, 0x7211, 0)}, /* CMOTech CHU-720I */
1190 {QMI_FIXED_INTF(0x16d8, 0x7212, 0)}, /* CMOTech 7212 */
1191 {QMI_FIXED_INTF(0x16d8, 0x7213, 0)}, /* CMOTech 7213 */
1192 {QMI_FIXED_INTF(0x16d8, 0x7251, 1)}, /* CMOTech 7251 */
1193 {QMI_FIXED_INTF(0x16d8, 0x7252, 1)}, /* CMOTech 7252 */
1194 {QMI_FIXED_INTF(0x16d8, 0x7253, 1)}, /* CMOTech 7253 */
1195 {QMI_FIXED_INTF(0x19d2, 0x0002, 1)},
1196 {QMI_FIXED_INTF(0x19d2, 0x0012, 1)},
1197 {QMI_FIXED_INTF(0x19d2, 0x0017, 3)},
1198 {QMI_FIXED_INTF(0x19d2, 0x0019, 3)}, /* ONDA MT689DC */
1199 {QMI_FIXED_INTF(0x19d2, 0x0021, 4)},
1200 {QMI_FIXED_INTF(0x19d2, 0x0025, 1)},
1201 {QMI_FIXED_INTF(0x19d2, 0x0031, 4)},
1202 {QMI_FIXED_INTF(0x19d2, 0x0042, 4)},
1203 {QMI_FIXED_INTF(0x19d2, 0x0049, 5)},
1204 {QMI_FIXED_INTF(0x19d2, 0x0052, 4)},
1205 {QMI_FIXED_INTF(0x19d2, 0x0055, 1)}, /* ZTE (Vodafone) K3520-Z */
1206 {QMI_FIXED_INTF(0x19d2, 0x0058, 4)},
1207 {QMI_FIXED_INTF(0x19d2, 0x0063, 4)}, /* ZTE (Vodafone) K3565-Z */
1208 {QMI_FIXED_INTF(0x19d2, 0x0104, 4)}, /* ZTE (Vodafone) K4505-Z */
1209 {QMI_FIXED_INTF(0x19d2, 0x0113, 5)},
1210 {QMI_FIXED_INTF(0x19d2, 0x0118, 5)},
1211 {QMI_FIXED_INTF(0x19d2, 0x0121, 5)},
1212 {QMI_FIXED_INTF(0x19d2, 0x0123, 4)},
1213 {QMI_FIXED_INTF(0x19d2, 0x0124, 5)},
1214 {QMI_FIXED_INTF(0x19d2, 0x0125, 6)},
1215 {QMI_FIXED_INTF(0x19d2, 0x0126, 5)},
1216 {QMI_FIXED_INTF(0x19d2, 0x0130, 1)},
1217 {QMI_FIXED_INTF(0x19d2, 0x0133, 3)},
1218 {QMI_FIXED_INTF(0x19d2, 0x0141, 5)},
1219 {QMI_FIXED_INTF(0x19d2, 0x0157, 5)}, /* ZTE MF683 */
1220 {QMI_FIXED_INTF(0x19d2, 0x0158, 3)},
1221 {QMI_FIXED_INTF(0x19d2, 0x0167, 4)}, /* ZTE MF820D */
1222 {QMI_FIXED_INTF(0x19d2, 0x0168, 4)},
1223 {QMI_FIXED_INTF(0x19d2, 0x0176, 3)},
1224 {QMI_FIXED_INTF(0x19d2, 0x0178, 3)},
1225 {QMI_FIXED_INTF(0x19d2, 0x0191, 4)}, /* ZTE EuFi890 */
1226 {QMI_FIXED_INTF(0x19d2, 0x0199, 1)}, /* ZTE MF820S */
1227 {QMI_FIXED_INTF(0x19d2, 0x0200, 1)},
1228 {QMI_FIXED_INTF(0x19d2, 0x0257, 3)}, /* ZTE MF821 */
1229 {QMI_FIXED_INTF(0x19d2, 0x0265, 4)}, /* ONDA MT8205 4G LTE */
1230 {QMI_FIXED_INTF(0x19d2, 0x0284, 4)}, /* ZTE MF880 */
1231 {QMI_FIXED_INTF(0x19d2, 0x0326, 4)}, /* ZTE MF821D */
1232 {QMI_FIXED_INTF(0x19d2, 0x0396, 3)}, /* ZTE ZM8620 */
1233 {QMI_FIXED_INTF(0x19d2, 0x0412, 4)}, /* Telewell TW-LTE 4G */
1234 {QMI_FIXED_INTF(0x19d2, 0x1008, 4)}, /* ZTE (Vodafone) K3570-Z */
1235 {QMI_FIXED_INTF(0x19d2, 0x1010, 4)}, /* ZTE (Vodafone) K3571-Z */
1236 {QMI_FIXED_INTF(0x19d2, 0x1012, 4)},
1237 {QMI_FIXED_INTF(0x19d2, 0x1018, 3)}, /* ZTE (Vodafone) K5006-Z */
1238 {QMI_FIXED_INTF(0x19d2, 0x1021, 2)},
1239 {QMI_FIXED_INTF(0x19d2, 0x1245, 4)},
1240 {QMI_FIXED_INTF(0x19d2, 0x1247, 4)},
1241 {QMI_FIXED_INTF(0x19d2, 0x1252, 4)},
1242 {QMI_FIXED_INTF(0x19d2, 0x1254, 4)},
1243 {QMI_FIXED_INTF(0x19d2, 0x1255, 3)},
1244 {QMI_FIXED_INTF(0x19d2, 0x1255, 4)},
1245 {QMI_FIXED_INTF(0x19d2, 0x1256, 4)},
1246 {QMI_FIXED_INTF(0x19d2, 0x1270, 5)}, /* ZTE MF667 */
1247 {QMI_FIXED_INTF(0x19d2, 0x1275, 3)}, /* ZTE P685M */
1248 {QMI_FIXED_INTF(0x19d2, 0x1401, 2)},
1249 {QMI_FIXED_INTF(0x19d2, 0x1402, 2)}, /* ZTE MF60 */
1250 {QMI_FIXED_INTF(0x19d2, 0x1424, 2)},
1251 {QMI_FIXED_INTF(0x19d2, 0x1425, 2)},
1252 {QMI_FIXED_INTF(0x19d2, 0x1426, 2)}, /* ZTE MF91 */
1253 {QMI_FIXED_INTF(0x19d2, 0x1428, 2)}, /* Telewell TW-LTE 4G v2 */
1254 {QMI_FIXED_INTF(0x19d2, 0x1432, 3)}, /* ZTE ME3620 */
1255 {QMI_FIXED_INTF(0x19d2, 0x2002, 4)}, /* ZTE (Vodafone) K3765-Z */
1256 {QMI_FIXED_INTF(0x2001, 0x7e16, 3)}, /* D-Link DWM-221 */
1257 {QMI_FIXED_INTF(0x2001, 0x7e19, 4)}, /* D-Link DWM-221 B1 */
1258 {QMI_FIXED_INTF(0x2001, 0x7e35, 4)}, /* D-Link DWM-222 */
1259 {QMI_FIXED_INTF(0x2001, 0x7e3d, 4)}, /* D-Link DWM-222 A2 */
1260 {QMI_FIXED_INTF(0x2020, 0x2031, 4)}, /* Olicard 600 */
1261 {QMI_FIXED_INTF(0x2020, 0x2033, 4)}, /* BroadMobi BM806U */
1262 {QMI_FIXED_INTF(0x2020, 0x2060, 4)}, /* BroadMobi BM818 */
1263 {QMI_FIXED_INTF(0x0f3d, 0x68a2, 8)}, /* Sierra Wireless MC7700 */
1264 {QMI_FIXED_INTF(0x114f, 0x68a2, 8)}, /* Sierra Wireless MC7750 */
1265 {QMI_FIXED_INTF(0x1199, 0x68a2, 8)}, /* Sierra Wireless MC7710 in QMI mode */
1266 {QMI_FIXED_INTF(0x1199, 0x68a2, 19)}, /* Sierra Wireless MC7710 in QMI mode */
1267 {QMI_QUIRK_SET_DTR(0x1199, 0x68c0, 8)}, /* Sierra Wireless MC7304/MC7354, WP76xx */
1268 {QMI_QUIRK_SET_DTR(0x1199, 0x68c0, 10)},/* Sierra Wireless MC7304/MC7354 */
1269 {QMI_FIXED_INTF(0x1199, 0x901c, 8)}, /* Sierra Wireless EM7700 */
1270 {QMI_FIXED_INTF(0x1199, 0x901f, 8)}, /* Sierra Wireless EM7355 */
1271 {QMI_FIXED_INTF(0x1199, 0x9041, 8)}, /* Sierra Wireless MC7305/MC7355 */
1272 {QMI_FIXED_INTF(0x1199, 0x9041, 10)}, /* Sierra Wireless MC7305/MC7355 */
1273 {QMI_FIXED_INTF(0x1199, 0x9051, 8)}, /* Netgear AirCard 340U */
1274 {QMI_FIXED_INTF(0x1199, 0x9053, 8)}, /* Sierra Wireless Modem */
1275 {QMI_FIXED_INTF(0x1199, 0x9054, 8)}, /* Sierra Wireless Modem */
1276 {QMI_FIXED_INTF(0x1199, 0x9055, 8)}, /* Netgear AirCard 341U */
1277 {QMI_FIXED_INTF(0x1199, 0x9056, 8)}, /* Sierra Wireless Modem */
1278 {QMI_FIXED_INTF(0x1199, 0x9057, 8)},
1279 {QMI_FIXED_INTF(0x1199, 0x9061, 8)}, /* Sierra Wireless Modem */
1280 {QMI_FIXED_INTF(0x1199, 0x9063, 8)}, /* Sierra Wireless EM7305 */
1281 {QMI_FIXED_INTF(0x1199, 0x9063, 10)}, /* Sierra Wireless EM7305 */
1282 {QMI_QUIRK_SET_DTR(0x1199, 0x9071, 8)}, /* Sierra Wireless MC74xx */
1283 {QMI_QUIRK_SET_DTR(0x1199, 0x9071, 10)},/* Sierra Wireless MC74xx */
1284 {QMI_QUIRK_SET_DTR(0x1199, 0x9079, 8)}, /* Sierra Wireless EM74xx */
1285 {QMI_QUIRK_SET_DTR(0x1199, 0x9079, 10)},/* Sierra Wireless EM74xx */
1286 {QMI_QUIRK_SET_DTR(0x1199, 0x907b, 8)}, /* Sierra Wireless EM74xx */
1287 {QMI_QUIRK_SET_DTR(0x1199, 0x907b, 10)},/* Sierra Wireless EM74xx */
1288 {QMI_QUIRK_SET_DTR(0x1199, 0x9091, 8)}, /* Sierra Wireless EM7565 */
1289 {QMI_FIXED_INTF(0x1bbb, 0x011e, 4)}, /* Telekom Speedstick LTE II (Alcatel One Touch L100V LTE) */
1290 {QMI_FIXED_INTF(0x1bbb, 0x0203, 2)}, /* Alcatel L800MA */
1291 {QMI_FIXED_INTF(0x2357, 0x0201, 4)}, /* TP-LINK HSUPA Modem MA180 */
1292 {QMI_FIXED_INTF(0x2357, 0x9000, 4)}, /* TP-LINK MA260 */
1293 {QMI_QUIRK_SET_DTR(0x1bc7, 0x1031, 3)}, /* Telit LE910C1-EUX */
1294 {QMI_QUIRK_SET_DTR(0x1bc7, 0x1040, 2)}, /* Telit LE922A */
1295 {QMI_QUIRK_SET_DTR(0x1bc7, 0x1050, 2)}, /* Telit FN980 */
1296 {QMI_FIXED_INTF(0x1bc7, 0x1100, 3)}, /* Telit ME910 */
1297 {QMI_FIXED_INTF(0x1bc7, 0x1101, 3)}, /* Telit ME910 dual modem */
1298 {QMI_FIXED_INTF(0x1bc7, 0x1200, 5)}, /* Telit LE920 */
1299 {QMI_QUIRK_SET_DTR(0x1bc7, 0x1201, 2)}, /* Telit LE920, LE920A4 */
1300 {QMI_QUIRK_SET_DTR(0x1bc7, 0x1230, 2)}, /* Telit LE910Cx */
1301 {QMI_QUIRK_SET_DTR(0x1bc7, 0x1260, 2)}, /* Telit LE910Cx */
1302 {QMI_QUIRK_SET_DTR(0x1bc7, 0x1261, 2)}, /* Telit LE910Cx */
1303 {QMI_QUIRK_SET_DTR(0x1bc7, 0x1900, 1)}, /* Telit LN940 series */
1304 {QMI_FIXED_INTF(0x1c9e, 0x9801, 3)}, /* Telewell TW-3G HSPA+ */
1305 {QMI_FIXED_INTF(0x1c9e, 0x9803, 4)}, /* Telewell TW-3G HSPA+ */
1306 {QMI_FIXED_INTF(0x1c9e, 0x9b01, 3)}, /* XS Stick W100-2 from 4G Systems */
1307 {QMI_FIXED_INTF(0x0b3c, 0xc000, 4)}, /* Olivetti Olicard 100 */
1308 {QMI_FIXED_INTF(0x0b3c, 0xc001, 4)}, /* Olivetti Olicard 120 */
1309 {QMI_FIXED_INTF(0x0b3c, 0xc002, 4)}, /* Olivetti Olicard 140 */
1310 {QMI_FIXED_INTF(0x0b3c, 0xc004, 6)}, /* Olivetti Olicard 155 */
1311 {QMI_FIXED_INTF(0x0b3c, 0xc005, 6)}, /* Olivetti Olicard 200 */
1312 {QMI_FIXED_INTF(0x0b3c, 0xc00a, 6)}, /* Olivetti Olicard 160 */
1313 {QMI_FIXED_INTF(0x0b3c, 0xc00b, 4)}, /* Olivetti Olicard 500 */
1314 {QMI_FIXED_INTF(0x1e2d, 0x0060, 4)}, /* Cinterion PLxx */
1315 {QMI_QUIRK_SET_DTR(0x1e2d, 0x006f, 8)}, /* Cinterion PLS83/PLS63 */
1316 {QMI_FIXED_INTF(0x1e2d, 0x0053, 4)}, /* Cinterion PHxx,PXxx */
1317 {QMI_FIXED_INTF(0x1e2d, 0x0063, 10)}, /* Cinterion ALASxx (1 RmNet) */
1318 {QMI_FIXED_INTF(0x1e2d, 0x0082, 4)}, /* Cinterion PHxx,PXxx (2 RmNet) */
1319 {QMI_FIXED_INTF(0x1e2d, 0x0082, 5)}, /* Cinterion PHxx,PXxx (2 RmNet) */
1320 {QMI_FIXED_INTF(0x1e2d, 0x0083, 4)}, /* Cinterion PHxx,PXxx (1 RmNet + USB Audio)*/
1321 {QMI_QUIRK_SET_DTR(0x1e2d, 0x00b0, 4)}, /* Cinterion CLS8 */
1322 {QMI_FIXED_INTF(0x1e2d, 0x00b7, 0)}, /* Cinterion MV31 RmNet */
1323 {QMI_FIXED_INTF(0x413c, 0x81a2, 8)}, /* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card */
1324 {QMI_FIXED_INTF(0x413c, 0x81a3, 8)}, /* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card */
1325 {QMI_FIXED_INTF(0x413c, 0x81a4, 8)}, /* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card */
1326 {QMI_FIXED_INTF(0x413c, 0x81a8, 8)}, /* Dell Wireless 5808 Gobi(TM) 4G LTE Mobile Broadband Card */
1327 {QMI_FIXED_INTF(0x413c, 0x81a9, 8)}, /* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card */
1328 {QMI_FIXED_INTF(0x413c, 0x81b1, 8)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card */
1329 {QMI_FIXED_INTF(0x413c, 0x81b3, 8)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */
1330 {QMI_FIXED_INTF(0x413c, 0x81b6, 8)}, /* Dell Wireless 5811e */
1331 {QMI_FIXED_INTF(0x413c, 0x81b6, 10)}, /* Dell Wireless 5811e */
1332 {QMI_FIXED_INTF(0x413c, 0x81cc, 8)}, /* Dell Wireless 5816e */
1333 {QMI_FIXED_INTF(0x413c, 0x81d7, 0)}, /* Dell Wireless 5821e */
1334 {QMI_FIXED_INTF(0x413c, 0x81d7, 1)}, /* Dell Wireless 5821e preproduction config */
1335 {QMI_FIXED_INTF(0x413c, 0x81e0, 0)}, /* Dell Wireless 5821e with eSIM support*/
1336 {QMI_FIXED_INTF(0x03f0, 0x4e1d, 8)}, /* HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module */
1337 {QMI_FIXED_INTF(0x03f0, 0x9d1d, 1)}, /* HP lt4120 Snapdragon X5 LTE */
1338 {QMI_FIXED_INTF(0x22de, 0x9061, 3)}, /* WeTelecom WPD-600N */
1339 {QMI_QUIRK_SET_DTR(0x1e0e, 0x9001, 5)}, /* SIMCom 7100E, 7230E, 7600E ++ */
1340 {QMI_QUIRK_SET_DTR(0x2c7c, 0x0121, 4)}, /* Quectel EC21 Mini PCIe */
1341 {QMI_QUIRK_SET_DTR(0x2c7c, 0x0191, 4)}, /* Quectel EG91 */
1342 {QMI_QUIRK_SET_DTR(0x2c7c, 0x0195, 4)}, /* Quectel EG95 */
1343 {QMI_FIXED_INTF(0x2c7c, 0x0296, 4)}, /* Quectel BG96 */
1344 {QMI_QUIRK_SET_DTR(0x2cb7, 0x0104, 4)}, /* Fibocom NL678 series */
1345 {QMI_FIXED_INTF(0x0489, 0xe0b4, 0)}, /* Foxconn T77W968 LTE */
1346 {QMI_FIXED_INTF(0x0489, 0xe0b5, 0)}, /* Foxconn T77W968 LTE with eSIM support*/
1347 {QMI_FIXED_INTF(0x2692, 0x9025, 4)}, /* Cellient MPL200 (rebranded Qualcomm 05c6:9025) */
1348
1349 /* 4. Gobi 1000 devices */
1350 {QMI_GOBI1K_DEVICE(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */
1351 {QMI_GOBI1K_DEVICE(0x03f0, 0x1f1d)}, /* HP un2400 Gobi Modem Device */
1352 {QMI_GOBI1K_DEVICE(0x04da, 0x250d)}, /* Panasonic Gobi Modem device */
1353 {QMI_GOBI1K_DEVICE(0x413c, 0x8172)}, /* Dell Gobi Modem device */
1354 {QMI_GOBI1K_DEVICE(0x1410, 0xa001)}, /* Novatel/Verizon USB-1000 */
1355 {QMI_GOBI1K_DEVICE(0x1410, 0xa002)}, /* Novatel Gobi Modem device */
1356 {QMI_GOBI1K_DEVICE(0x1410, 0xa003)}, /* Novatel Gobi Modem device */
1357 {QMI_GOBI1K_DEVICE(0x1410, 0xa004)}, /* Novatel Gobi Modem device */
1358 {QMI_GOBI1K_DEVICE(0x1410, 0xa005)}, /* Novatel Gobi Modem device */
1359 {QMI_GOBI1K_DEVICE(0x1410, 0xa006)}, /* Novatel Gobi Modem device */
1360 {QMI_GOBI1K_DEVICE(0x1410, 0xa007)}, /* Novatel Gobi Modem device */
1361 {QMI_GOBI1K_DEVICE(0x0b05, 0x1776)}, /* Asus Gobi Modem device */
1362 {QMI_GOBI1K_DEVICE(0x19d2, 0xfff3)}, /* ONDA Gobi Modem device */
1363 {QMI_GOBI1K_DEVICE(0x05c6, 0x9001)}, /* Generic Gobi Modem device */
1364 {QMI_GOBI1K_DEVICE(0x05c6, 0x9002)}, /* Generic Gobi Modem device */
1365 {QMI_GOBI1K_DEVICE(0x05c6, 0x9202)}, /* Generic Gobi Modem device */
1366 {QMI_GOBI1K_DEVICE(0x05c6, 0x9203)}, /* Generic Gobi Modem device */
1367 {QMI_GOBI1K_DEVICE(0x05c6, 0x9222)}, /* Generic Gobi Modem device */
1368 {QMI_GOBI1K_DEVICE(0x05c6, 0x9009)}, /* Generic Gobi Modem device */
1369
1370 /* 5. Gobi 2000 and 3000 devices */
1371 {QMI_GOBI_DEVICE(0x413c, 0x8186)}, /* Dell Gobi 2000 Modem device (N0218, VU936) */
1372 {QMI_GOBI_DEVICE(0x413c, 0x8194)}, /* Dell Gobi 3000 Composite */
1373 {QMI_GOBI_DEVICE(0x05c6, 0x920b)}, /* Generic Gobi 2000 Modem device */
1374 {QMI_GOBI_DEVICE(0x05c6, 0x9225)}, /* Sony Gobi 2000 Modem device (N0279, VU730) */
1375 {QMI_GOBI_DEVICE(0x05c6, 0x9245)}, /* Samsung Gobi 2000 Modem device (VL176) */
1376 {QMI_GOBI_DEVICE(0x03f0, 0x251d)}, /* HP Gobi 2000 Modem device (VP412) */
1377 {QMI_GOBI_DEVICE(0x05c6, 0x9215)}, /* Acer Gobi 2000 Modem device (VP413) */
1378 {QMI_FIXED_INTF(0x05c6, 0x9215, 4)}, /* Quectel EC20 Mini PCIe */
1379 {QMI_GOBI_DEVICE(0x05c6, 0x9265)}, /* Asus Gobi 2000 Modem device (VR305) */
1380 {QMI_GOBI_DEVICE(0x05c6, 0x9235)}, /* Top Global Gobi 2000 Modem device (VR306) */
1381 {QMI_GOBI_DEVICE(0x05c6, 0x9275)}, /* iRex Technologies Gobi 2000 Modem device (VR307) */
1382 {QMI_GOBI_DEVICE(0x0af0, 0x8120)}, /* Option GTM681W */
1383 {QMI_GOBI_DEVICE(0x1199, 0x68a5)}, /* Sierra Wireless Modem */
1384 {QMI_GOBI_DEVICE(0x1199, 0x68a9)}, /* Sierra Wireless Modem */
1385 {QMI_GOBI_DEVICE(0x1199, 0x9001)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
1386 {QMI_GOBI_DEVICE(0x1199, 0x9002)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
1387 {QMI_GOBI_DEVICE(0x1199, 0x9003)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
1388 {QMI_GOBI_DEVICE(0x1199, 0x9004)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
1389 {QMI_GOBI_DEVICE(0x1199, 0x9005)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
1390 {QMI_GOBI_DEVICE(0x1199, 0x9006)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
1391 {QMI_GOBI_DEVICE(0x1199, 0x9007)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
1392 {QMI_GOBI_DEVICE(0x1199, 0x9008)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
1393 {QMI_GOBI_DEVICE(0x1199, 0x9009)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
1394 {QMI_GOBI_DEVICE(0x1199, 0x900a)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
1395 {QMI_GOBI_DEVICE(0x1199, 0x9011)}, /* Sierra Wireless Gobi 2000 Modem device (MC8305) */
1396 {QMI_GOBI_DEVICE(0x16d8, 0x8002)}, /* CMDTech Gobi 2000 Modem device (VU922) */
1397 {QMI_GOBI_DEVICE(0x05c6, 0x9205)}, /* Gobi 2000 Modem device */
1398 {QMI_GOBI_DEVICE(0x1199, 0x9013)}, /* Sierra Wireless Gobi 3000 Modem device (MC8355) */
1399 {QMI_GOBI_DEVICE(0x03f0, 0x371d)}, /* HP un2430 Mobile Broadband Module */
1400 {QMI_GOBI_DEVICE(0x1199, 0x9015)}, /* Sierra Wireless Gobi 3000 Modem device */
1401 {QMI_GOBI_DEVICE(0x1199, 0x9019)}, /* Sierra Wireless Gobi 3000 Modem device */
1402 {QMI_GOBI_DEVICE(0x1199, 0x901b)}, /* Sierra Wireless MC7770 */
1403 {QMI_GOBI_DEVICE(0x12d1, 0x14f1)}, /* Sony Gobi 3000 Composite */
1404 {QMI_GOBI_DEVICE(0x1410, 0xa021)}, /* Foxconn Gobi 3000 Modem device (Novatel E396) */
1405
1406 { } /* END */
1407 };
1408 MODULE_DEVICE_TABLE(usb, products);
1409
quectel_ec20_detected(struct usb_interface * intf)1410 static bool quectel_ec20_detected(struct usb_interface *intf)
1411 {
1412 struct usb_device *dev = interface_to_usbdev(intf);
1413
1414 if (dev->actconfig &&
1415 le16_to_cpu(dev->descriptor.idVendor) == 0x05c6 &&
1416 le16_to_cpu(dev->descriptor.idProduct) == 0x9215 &&
1417 dev->actconfig->desc.bNumInterfaces == 5)
1418 return true;
1419
1420 return false;
1421 }
1422
qmi_wwan_probe(struct usb_interface * intf,const struct usb_device_id * prod)1423 static int qmi_wwan_probe(struct usb_interface *intf,
1424 const struct usb_device_id *prod)
1425 {
1426 struct usb_device_id *id = (struct usb_device_id *)prod;
1427 struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc;
1428
1429 /* Workaround to enable dynamic IDs. This disables usbnet
1430 * blacklisting functionality. Which, if required, can be
1431 * reimplemented here by using a magic "blacklist" value
1432 * instead of 0 in the static device id table
1433 */
1434 if (!id->driver_info) {
1435 dev_dbg(&intf->dev, "setting defaults for dynamic device id\n");
1436 id->driver_info = (unsigned long)&qmi_wwan_info;
1437 }
1438
1439 /* There are devices where the same interface number can be
1440 * configured as different functions. We should only bind to
1441 * vendor specific functions when matching on interface number
1442 */
1443 if (id->match_flags & USB_DEVICE_ID_MATCH_INT_NUMBER &&
1444 desc->bInterfaceClass != USB_CLASS_VENDOR_SPEC) {
1445 dev_dbg(&intf->dev,
1446 "Rejecting interface number match for class %02x\n",
1447 desc->bInterfaceClass);
1448 return -ENODEV;
1449 }
1450
1451 /* Quectel EC20 quirk where we've QMI on interface 4 instead of 0 */
1452 if (quectel_ec20_detected(intf) && desc->bInterfaceNumber == 0) {
1453 dev_dbg(&intf->dev, "Quectel EC20 quirk, skipping interface 0\n");
1454 return -ENODEV;
1455 }
1456
1457 /* Several Quectel modems supports dynamic interface configuration, so
1458 * we need to match on class/subclass/protocol. These values are
1459 * identical for the diagnostic- and QMI-interface, but bNumEndpoints is
1460 * different. Ignore the current interface if the number of endpoints
1461 * equals the number for the diag interface (two).
1462 */
1463 if (desc->bNumEndpoints == 2)
1464 return -ENODEV;
1465
1466 return usbnet_probe(intf, id);
1467 }
1468
qmi_wwan_disconnect(struct usb_interface * intf)1469 static void qmi_wwan_disconnect(struct usb_interface *intf)
1470 {
1471 struct usbnet *dev = usb_get_intfdata(intf);
1472 struct qmi_wwan_state *info;
1473 struct list_head *iter;
1474 struct net_device *ldev;
1475 LIST_HEAD(list);
1476
1477 /* called twice if separate control and data intf */
1478 if (!dev)
1479 return;
1480 info = (void *)&dev->data;
1481 if (info->flags & QMI_WWAN_FLAG_MUX) {
1482 if (!rtnl_trylock()) {
1483 restart_syscall();
1484 return;
1485 }
1486 rcu_read_lock();
1487 netdev_for_each_upper_dev_rcu(dev->net, ldev, iter)
1488 qmimux_unregister_device(ldev, &list);
1489 rcu_read_unlock();
1490 unregister_netdevice_many(&list);
1491 rtnl_unlock();
1492 info->flags &= ~QMI_WWAN_FLAG_MUX;
1493 }
1494 usbnet_disconnect(intf);
1495 }
1496
1497 static struct usb_driver qmi_wwan_driver = {
1498 .name = "qmi_wwan",
1499 .id_table = products,
1500 .probe = qmi_wwan_probe,
1501 .disconnect = qmi_wwan_disconnect,
1502 .suspend = qmi_wwan_suspend,
1503 .resume = qmi_wwan_resume,
1504 .reset_resume = qmi_wwan_resume,
1505 .supports_autosuspend = 1,
1506 .disable_hub_initiated_lpm = 1,
1507 };
1508
1509 module_usb_driver(qmi_wwan_driver);
1510
1511 MODULE_AUTHOR("Bjørn Mork <bjorn@mork.no>");
1512 MODULE_DESCRIPTION("Qualcomm MSM Interface (QMI) WWAN driver");
1513 MODULE_LICENSE("GPL");
1514