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