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 kfree_skb(skbn);
220 goto skip;
221 }
222
223 skb_put_data(skbn, skb->data + offset + qmimux_hdr_sz, pkt_len);
224 if (netif_rx(skbn) != NET_RX_SUCCESS) {
225 net->stats.rx_errors++;
226 return 0;
227 } else {
228 struct pcpu_sw_netstats *stats64;
229 struct qmimux_priv *priv = netdev_priv(net);
230
231 stats64 = this_cpu_ptr(priv->stats64);
232 u64_stats_update_begin(&stats64->syncp);
233 stats64->rx_packets++;
234 stats64->rx_bytes += pkt_len;
235 u64_stats_update_end(&stats64->syncp);
236 }
237
238 skip:
239 offset += len + qmimux_hdr_sz;
240 }
241 return 1;
242 }
243
qmimux_register_device(struct net_device * real_dev,u8 mux_id)244 static int qmimux_register_device(struct net_device *real_dev, u8 mux_id)
245 {
246 struct net_device *new_dev;
247 struct qmimux_priv *priv;
248 int err;
249
250 new_dev = alloc_netdev(sizeof(struct qmimux_priv),
251 "qmimux%d", NET_NAME_UNKNOWN, qmimux_setup);
252 if (!new_dev)
253 return -ENOBUFS;
254
255 dev_net_set(new_dev, dev_net(real_dev));
256 priv = netdev_priv(new_dev);
257 priv->mux_id = mux_id;
258 priv->real_dev = real_dev;
259
260 priv->stats64 = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
261 if (!priv->stats64) {
262 err = -ENOBUFS;
263 goto out_free_newdev;
264 }
265
266 err = register_netdevice(new_dev);
267 if (err < 0)
268 goto out_free_newdev;
269
270 /* Account for reference in struct qmimux_priv_priv */
271 dev_hold(real_dev);
272
273 err = netdev_upper_dev_link(real_dev, new_dev, NULL);
274 if (err)
275 goto out_unregister_netdev;
276
277 netif_stacked_transfer_operstate(real_dev, new_dev);
278
279 return 0;
280
281 out_unregister_netdev:
282 unregister_netdevice(new_dev);
283 dev_put(real_dev);
284
285 out_free_newdev:
286 free_netdev(new_dev);
287 return err;
288 }
289
qmimux_unregister_device(struct net_device * dev,struct list_head * head)290 static void qmimux_unregister_device(struct net_device *dev,
291 struct list_head *head)
292 {
293 struct qmimux_priv *priv = netdev_priv(dev);
294 struct net_device *real_dev = priv->real_dev;
295
296 free_percpu(priv->stats64);
297 netdev_upper_dev_unlink(real_dev, dev);
298 unregister_netdevice_queue(dev, head);
299
300 /* Get rid of the reference to real_dev */
301 dev_put(real_dev);
302 }
303
qmi_wwan_netdev_setup(struct net_device * net)304 static void qmi_wwan_netdev_setup(struct net_device *net)
305 {
306 struct usbnet *dev = netdev_priv(net);
307 struct qmi_wwan_state *info = (void *)&dev->data;
308
309 if (info->flags & QMI_WWAN_FLAG_RAWIP) {
310 net->header_ops = NULL; /* No header */
311 net->type = ARPHRD_NONE;
312 net->hard_header_len = 0;
313 net->addr_len = 0;
314 net->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST;
315 set_bit(EVENT_NO_IP_ALIGN, &dev->flags);
316 netdev_dbg(net, "mode: raw IP\n");
317 } else if (!net->header_ops) { /* don't bother if already set */
318 ether_setup(net);
319 /* Restoring min/max mtu values set originally by usbnet */
320 net->min_mtu = 0;
321 net->max_mtu = ETH_MAX_MTU;
322 clear_bit(EVENT_NO_IP_ALIGN, &dev->flags);
323 netdev_dbg(net, "mode: Ethernet\n");
324 }
325
326 /* recalculate buffers after changing hard_header_len */
327 usbnet_change_mtu(net, net->mtu);
328 }
329
raw_ip_show(struct device * d,struct device_attribute * attr,char * buf)330 static ssize_t raw_ip_show(struct device *d, struct device_attribute *attr, char *buf)
331 {
332 struct usbnet *dev = netdev_priv(to_net_dev(d));
333 struct qmi_wwan_state *info = (void *)&dev->data;
334
335 return sprintf(buf, "%c\n", info->flags & QMI_WWAN_FLAG_RAWIP ? 'Y' : 'N');
336 }
337
raw_ip_store(struct device * d,struct device_attribute * attr,const char * buf,size_t len)338 static ssize_t raw_ip_store(struct device *d, struct device_attribute *attr, const char *buf, size_t len)
339 {
340 struct usbnet *dev = netdev_priv(to_net_dev(d));
341 struct qmi_wwan_state *info = (void *)&dev->data;
342 bool enable;
343 int ret;
344
345 if (strtobool(buf, &enable))
346 return -EINVAL;
347
348 /* no change? */
349 if (enable == (info->flags & QMI_WWAN_FLAG_RAWIP))
350 return len;
351
352 if (!rtnl_trylock())
353 return restart_syscall();
354
355 /* we don't want to modify a running netdev */
356 if (netif_running(dev->net)) {
357 netdev_err(dev->net, "Cannot change a running device\n");
358 ret = -EBUSY;
359 goto err;
360 }
361
362 /* let other drivers deny the change */
363 ret = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev->net);
364 ret = notifier_to_errno(ret);
365 if (ret) {
366 netdev_err(dev->net, "Type change was refused\n");
367 goto err;
368 }
369
370 if (enable)
371 info->flags |= QMI_WWAN_FLAG_RAWIP;
372 else
373 info->flags &= ~QMI_WWAN_FLAG_RAWIP;
374 qmi_wwan_netdev_setup(dev->net);
375 call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev->net);
376 ret = len;
377 err:
378 rtnl_unlock();
379 return ret;
380 }
381
add_mux_show(struct device * d,struct device_attribute * attr,char * buf)382 static ssize_t add_mux_show(struct device *d, struct device_attribute *attr, char *buf)
383 {
384 struct net_device *dev = to_net_dev(d);
385 struct qmimux_priv *priv;
386 struct list_head *iter;
387 struct net_device *ldev;
388 ssize_t count = 0;
389
390 rcu_read_lock();
391 netdev_for_each_upper_dev_rcu(dev, ldev, iter) {
392 priv = netdev_priv(ldev);
393 count += scnprintf(&buf[count], PAGE_SIZE - count,
394 "0x%02x\n", priv->mux_id);
395 }
396 rcu_read_unlock();
397 return count;
398 }
399
add_mux_store(struct device * d,struct device_attribute * attr,const char * buf,size_t len)400 static ssize_t add_mux_store(struct device *d, struct device_attribute *attr, const char *buf, size_t len)
401 {
402 struct usbnet *dev = netdev_priv(to_net_dev(d));
403 struct qmi_wwan_state *info = (void *)&dev->data;
404 u8 mux_id;
405 int ret;
406
407 if (kstrtou8(buf, 0, &mux_id))
408 return -EINVAL;
409
410 /* mux_id [1 - 254] for compatibility with ip(8) and the rmnet driver */
411 if (mux_id < 1 || mux_id > 254)
412 return -EINVAL;
413
414 if (!rtnl_trylock())
415 return restart_syscall();
416
417 if (qmimux_find_dev(dev, mux_id)) {
418 netdev_err(dev->net, "mux_id already present\n");
419 ret = -EINVAL;
420 goto err;
421 }
422
423 ret = qmimux_register_device(dev->net, mux_id);
424 if (!ret) {
425 info->flags |= QMI_WWAN_FLAG_MUX;
426 ret = len;
427 }
428 err:
429 rtnl_unlock();
430 return ret;
431 }
432
del_mux_show(struct device * d,struct device_attribute * attr,char * buf)433 static ssize_t del_mux_show(struct device *d, struct device_attribute *attr, char *buf)
434 {
435 return add_mux_show(d, attr, buf);
436 }
437
del_mux_store(struct device * d,struct device_attribute * attr,const char * buf,size_t len)438 static ssize_t del_mux_store(struct device *d, struct device_attribute *attr, const char *buf, size_t len)
439 {
440 struct usbnet *dev = netdev_priv(to_net_dev(d));
441 struct qmi_wwan_state *info = (void *)&dev->data;
442 struct net_device *del_dev;
443 u8 mux_id;
444 int ret = 0;
445
446 if (kstrtou8(buf, 0, &mux_id))
447 return -EINVAL;
448
449 if (!rtnl_trylock())
450 return restart_syscall();
451
452 del_dev = qmimux_find_dev(dev, mux_id);
453 if (!del_dev) {
454 netdev_err(dev->net, "mux_id not present\n");
455 ret = -EINVAL;
456 goto err;
457 }
458 qmimux_unregister_device(del_dev, NULL);
459
460 if (!qmimux_has_slaves(dev))
461 info->flags &= ~QMI_WWAN_FLAG_MUX;
462 ret = len;
463 err:
464 rtnl_unlock();
465 return ret;
466 }
467
468 static DEVICE_ATTR_RW(raw_ip);
469 static DEVICE_ATTR_RW(add_mux);
470 static DEVICE_ATTR_RW(del_mux);
471
472 static struct attribute *qmi_wwan_sysfs_attrs[] = {
473 &dev_attr_raw_ip.attr,
474 &dev_attr_add_mux.attr,
475 &dev_attr_del_mux.attr,
476 NULL,
477 };
478
479 static struct attribute_group qmi_wwan_sysfs_attr_group = {
480 .name = "qmi",
481 .attrs = qmi_wwan_sysfs_attrs,
482 };
483
484 /* default ethernet address used by the modem */
485 static const u8 default_modem_addr[ETH_ALEN] = {0x02, 0x50, 0xf3};
486
487 static const u8 buggy_fw_addr[ETH_ALEN] = {0x00, 0xa0, 0xc6, 0x00, 0x00, 0x00};
488
489 /* Make up an ethernet header if the packet doesn't have one.
490 *
491 * A firmware bug common among several devices cause them to send raw
492 * IP packets under some circumstances. There is no way for the
493 * driver/host to know when this will happen. And even when the bug
494 * hits, some packets will still arrive with an intact header.
495 *
496 * The supported devices are only capably of sending IPv4, IPv6 and
497 * ARP packets on a point-to-point link. Any packet with an ethernet
498 * header will have either our address or a broadcast/multicast
499 * address as destination. ARP packets will always have a header.
500 *
501 * This means that this function will reliably add the appropriate
502 * header iff necessary, provided our hardware address does not start
503 * with 4 or 6.
504 *
505 * Another common firmware bug results in all packets being addressed
506 * to 00:a0:c6:00:00:00 despite the host address being different.
507 * This function will also fixup such packets.
508 */
qmi_wwan_rx_fixup(struct usbnet * dev,struct sk_buff * skb)509 static int qmi_wwan_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
510 {
511 struct qmi_wwan_state *info = (void *)&dev->data;
512 bool rawip = info->flags & QMI_WWAN_FLAG_RAWIP;
513 __be16 proto;
514
515 /* This check is no longer done by usbnet */
516 if (skb->len < dev->net->hard_header_len)
517 return 0;
518
519 if (info->flags & QMI_WWAN_FLAG_MUX)
520 return qmimux_rx_fixup(dev, skb);
521
522 switch (skb->data[0] & 0xf0) {
523 case 0x40:
524 proto = htons(ETH_P_IP);
525 break;
526 case 0x60:
527 proto = htons(ETH_P_IPV6);
528 break;
529 case 0x00:
530 if (rawip)
531 return 0;
532 if (is_multicast_ether_addr(skb->data))
533 return 1;
534 /* possibly bogus destination - rewrite just in case */
535 skb_reset_mac_header(skb);
536 goto fix_dest;
537 default:
538 if (rawip)
539 return 0;
540 /* pass along other packets without modifications */
541 return 1;
542 }
543 if (rawip) {
544 skb_reset_mac_header(skb);
545 skb->dev = dev->net; /* normally set by eth_type_trans */
546 skb->protocol = proto;
547 return 1;
548 }
549
550 if (skb_headroom(skb) < ETH_HLEN)
551 return 0;
552 skb_push(skb, ETH_HLEN);
553 skb_reset_mac_header(skb);
554 eth_hdr(skb)->h_proto = proto;
555 eth_zero_addr(eth_hdr(skb)->h_source);
556 fix_dest:
557 memcpy(eth_hdr(skb)->h_dest, dev->net->dev_addr, ETH_ALEN);
558 return 1;
559 }
560
561 /* very simplistic detection of IPv4 or IPv6 headers */
possibly_iphdr(const char * data)562 static bool possibly_iphdr(const char *data)
563 {
564 return (data[0] & 0xd0) == 0x40;
565 }
566
567 /* disallow addresses which may be confused with IP headers */
qmi_wwan_mac_addr(struct net_device * dev,void * p)568 static int qmi_wwan_mac_addr(struct net_device *dev, void *p)
569 {
570 int ret;
571 struct sockaddr *addr = p;
572
573 ret = eth_prepare_mac_addr_change(dev, p);
574 if (ret < 0)
575 return ret;
576 if (possibly_iphdr(addr->sa_data))
577 return -EADDRNOTAVAIL;
578 eth_commit_mac_addr_change(dev, p);
579 return 0;
580 }
581
582 static const struct net_device_ops qmi_wwan_netdev_ops = {
583 .ndo_open = usbnet_open,
584 .ndo_stop = usbnet_stop,
585 .ndo_start_xmit = usbnet_start_xmit,
586 .ndo_tx_timeout = usbnet_tx_timeout,
587 .ndo_change_mtu = usbnet_change_mtu,
588 .ndo_get_stats64 = usbnet_get_stats64,
589 .ndo_set_mac_address = qmi_wwan_mac_addr,
590 .ndo_validate_addr = eth_validate_addr,
591 };
592
593 /* using a counter to merge subdriver requests with our own into a
594 * combined state
595 */
qmi_wwan_manage_power(struct usbnet * dev,int on)596 static int qmi_wwan_manage_power(struct usbnet *dev, int on)
597 {
598 struct qmi_wwan_state *info = (void *)&dev->data;
599 int rv;
600
601 dev_dbg(&dev->intf->dev, "%s() pmcount=%d, on=%d\n", __func__,
602 atomic_read(&info->pmcount), on);
603
604 if ((on && atomic_add_return(1, &info->pmcount) == 1) ||
605 (!on && atomic_dec_and_test(&info->pmcount))) {
606 /* need autopm_get/put here to ensure the usbcore sees
607 * the new value
608 */
609 rv = usb_autopm_get_interface(dev->intf);
610 dev->intf->needs_remote_wakeup = on;
611 if (!rv)
612 usb_autopm_put_interface(dev->intf);
613 }
614 return 0;
615 }
616
qmi_wwan_cdc_wdm_manage_power(struct usb_interface * intf,int on)617 static int qmi_wwan_cdc_wdm_manage_power(struct usb_interface *intf, int on)
618 {
619 struct usbnet *dev = usb_get_intfdata(intf);
620
621 /* can be called while disconnecting */
622 if (!dev)
623 return 0;
624 return qmi_wwan_manage_power(dev, on);
625 }
626
627 /* collect all three endpoints and register subdriver */
qmi_wwan_register_subdriver(struct usbnet * dev)628 static int qmi_wwan_register_subdriver(struct usbnet *dev)
629 {
630 int rv;
631 struct usb_driver *subdriver = NULL;
632 struct qmi_wwan_state *info = (void *)&dev->data;
633
634 /* collect bulk endpoints */
635 rv = usbnet_get_endpoints(dev, info->data);
636 if (rv < 0)
637 goto err;
638
639 /* update status endpoint if separate control interface */
640 if (info->control != info->data)
641 dev->status = &info->control->cur_altsetting->endpoint[0];
642
643 /* require interrupt endpoint for subdriver */
644 if (!dev->status) {
645 rv = -EINVAL;
646 goto err;
647 }
648
649 /* for subdriver power management */
650 atomic_set(&info->pmcount, 0);
651
652 /* register subdriver */
653 subdriver = usb_cdc_wdm_register(info->control, &dev->status->desc,
654 4096, &qmi_wwan_cdc_wdm_manage_power);
655 if (IS_ERR(subdriver)) {
656 dev_err(&info->control->dev, "subdriver registration failed\n");
657 rv = PTR_ERR(subdriver);
658 goto err;
659 }
660
661 /* prevent usbnet from using status endpoint */
662 dev->status = NULL;
663
664 /* save subdriver struct for suspend/resume wrappers */
665 info->subdriver = subdriver;
666
667 err:
668 return rv;
669 }
670
671 /* Send CDC SetControlLineState request, setting or clearing the DTR.
672 * "Required for Autoconnect and 9x30 to wake up" according to the
673 * GobiNet driver. The requirement has been verified on an MDM9230
674 * based Sierra Wireless MC7455
675 */
qmi_wwan_change_dtr(struct usbnet * dev,bool on)676 static int qmi_wwan_change_dtr(struct usbnet *dev, bool on)
677 {
678 u8 intf = dev->intf->cur_altsetting->desc.bInterfaceNumber;
679
680 return usbnet_write_cmd(dev, USB_CDC_REQ_SET_CONTROL_LINE_STATE,
681 USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
682 on ? 0x01 : 0x00, intf, NULL, 0);
683 }
684
qmi_wwan_bind(struct usbnet * dev,struct usb_interface * intf)685 static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
686 {
687 int status;
688 u8 *buf = intf->cur_altsetting->extra;
689 int len = intf->cur_altsetting->extralen;
690 struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc;
691 struct usb_cdc_union_desc *cdc_union;
692 struct usb_cdc_ether_desc *cdc_ether;
693 struct usb_driver *driver = driver_of(intf);
694 struct qmi_wwan_state *info = (void *)&dev->data;
695 struct usb_cdc_parsed_header hdr;
696
697 BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) <
698 sizeof(struct qmi_wwan_state)));
699
700 /* set up initial state */
701 info->control = intf;
702 info->data = intf;
703
704 /* and a number of CDC descriptors */
705 cdc_parse_cdc_header(&hdr, intf, buf, len);
706 cdc_union = hdr.usb_cdc_union_desc;
707 cdc_ether = hdr.usb_cdc_ether_desc;
708
709 /* Use separate control and data interfaces if we found a CDC Union */
710 if (cdc_union) {
711 info->data = usb_ifnum_to_if(dev->udev,
712 cdc_union->bSlaveInterface0);
713 if (desc->bInterfaceNumber != cdc_union->bMasterInterface0 ||
714 !info->data) {
715 dev_err(&intf->dev,
716 "bogus CDC Union: master=%u, slave=%u\n",
717 cdc_union->bMasterInterface0,
718 cdc_union->bSlaveInterface0);
719
720 /* ignore and continue... */
721 cdc_union = NULL;
722 info->data = intf;
723 }
724 }
725
726 /* errors aren't fatal - we can live with the dynamic address */
727 if (cdc_ether && cdc_ether->wMaxSegmentSize) {
728 dev->hard_mtu = le16_to_cpu(cdc_ether->wMaxSegmentSize);
729 usbnet_get_ethernet_addr(dev, cdc_ether->iMACAddress);
730 }
731
732 /* claim data interface and set it up */
733 if (info->control != info->data) {
734 status = usb_driver_claim_interface(driver, info->data, dev);
735 if (status < 0)
736 goto err;
737 }
738
739 status = qmi_wwan_register_subdriver(dev);
740 if (status < 0 && info->control != info->data) {
741 usb_set_intfdata(info->data, NULL);
742 usb_driver_release_interface(driver, info->data);
743 }
744
745 /* disabling remote wakeup on MDM9x30 devices has the same
746 * effect as clearing DTR. The device will not respond to QMI
747 * requests until we set DTR again. This is similar to a
748 * QMI_CTL SYNC request, clearing a lot of firmware state
749 * including the client ID allocations.
750 *
751 * Our usage model allows a session to span multiple
752 * open/close events, so we must prevent the firmware from
753 * clearing out state the clients might need.
754 *
755 * MDM9x30 is the first QMI chipset with USB3 support. Abuse
756 * this fact to enable the quirk for all USB3 devices.
757 *
758 * There are also chipsets with the same "set DTR" requirement
759 * but without USB3 support. Devices based on these chips
760 * need a quirk flag in the device ID table.
761 */
762 if (dev->driver_info->data & QMI_WWAN_QUIRK_DTR ||
763 le16_to_cpu(dev->udev->descriptor.bcdUSB) >= 0x0201) {
764 qmi_wwan_manage_power(dev, 1);
765 qmi_wwan_change_dtr(dev, true);
766 }
767
768 /* Never use the same address on both ends of the link, even if the
769 * buggy firmware told us to. Or, if device is assigned the well-known
770 * buggy firmware MAC address, replace it with a random address,
771 */
772 if (ether_addr_equal(dev->net->dev_addr, default_modem_addr) ||
773 ether_addr_equal(dev->net->dev_addr, buggy_fw_addr))
774 eth_hw_addr_random(dev->net);
775
776 /* make MAC addr easily distinguishable from an IP header */
777 if (possibly_iphdr(dev->net->dev_addr)) {
778 dev->net->dev_addr[0] |= 0x02; /* set local assignment bit */
779 dev->net->dev_addr[0] &= 0xbf; /* clear "IP" bit */
780 }
781 dev->net->netdev_ops = &qmi_wwan_netdev_ops;
782 dev->net->sysfs_groups[0] = &qmi_wwan_sysfs_attr_group;
783 err:
784 return status;
785 }
786
qmi_wwan_unbind(struct usbnet * dev,struct usb_interface * intf)787 static void qmi_wwan_unbind(struct usbnet *dev, struct usb_interface *intf)
788 {
789 struct qmi_wwan_state *info = (void *)&dev->data;
790 struct usb_driver *driver = driver_of(intf);
791 struct usb_interface *other;
792
793 if (info->subdriver && info->subdriver->disconnect)
794 info->subdriver->disconnect(info->control);
795
796 /* disable MDM9x30 quirk */
797 if (le16_to_cpu(dev->udev->descriptor.bcdUSB) >= 0x0201) {
798 qmi_wwan_change_dtr(dev, false);
799 qmi_wwan_manage_power(dev, 0);
800 }
801
802 /* allow user to unbind using either control or data */
803 if (intf == info->control)
804 other = info->data;
805 else
806 other = info->control;
807
808 /* only if not shared */
809 if (other && intf != other) {
810 usb_set_intfdata(other, NULL);
811 usb_driver_release_interface(driver, other);
812 }
813
814 info->subdriver = NULL;
815 info->data = NULL;
816 info->control = NULL;
817 }
818
819 /* suspend/resume wrappers calling both usbnet and the cdc-wdm
820 * subdriver if present.
821 *
822 * NOTE: cdc-wdm also supports pre/post_reset, but we cannot provide
823 * wrappers for those without adding usbnet reset support first.
824 */
qmi_wwan_suspend(struct usb_interface * intf,pm_message_t message)825 static int qmi_wwan_suspend(struct usb_interface *intf, pm_message_t message)
826 {
827 struct usbnet *dev = usb_get_intfdata(intf);
828 struct qmi_wwan_state *info = (void *)&dev->data;
829 int ret;
830
831 /* Both usbnet_suspend() and subdriver->suspend() MUST return 0
832 * in system sleep context, otherwise, the resume callback has
833 * to recover device from previous suspend failure.
834 */
835 ret = usbnet_suspend(intf, message);
836 if (ret < 0)
837 goto err;
838
839 if (intf == info->control && info->subdriver &&
840 info->subdriver->suspend)
841 ret = info->subdriver->suspend(intf, message);
842 if (ret < 0)
843 usbnet_resume(intf);
844 err:
845 return ret;
846 }
847
qmi_wwan_resume(struct usb_interface * intf)848 static int qmi_wwan_resume(struct usb_interface *intf)
849 {
850 struct usbnet *dev = usb_get_intfdata(intf);
851 struct qmi_wwan_state *info = (void *)&dev->data;
852 int ret = 0;
853 bool callsub = (intf == info->control && info->subdriver &&
854 info->subdriver->resume);
855
856 if (callsub)
857 ret = info->subdriver->resume(intf);
858 if (ret < 0)
859 goto err;
860 ret = usbnet_resume(intf);
861 if (ret < 0 && callsub)
862 info->subdriver->suspend(intf, PMSG_SUSPEND);
863 err:
864 return ret;
865 }
866
867 static const struct driver_info qmi_wwan_info = {
868 .description = "WWAN/QMI device",
869 .flags = FLAG_WWAN | FLAG_SEND_ZLP,
870 .bind = qmi_wwan_bind,
871 .unbind = qmi_wwan_unbind,
872 .manage_power = qmi_wwan_manage_power,
873 .rx_fixup = qmi_wwan_rx_fixup,
874 };
875
876 static const struct driver_info qmi_wwan_info_quirk_dtr = {
877 .description = "WWAN/QMI device",
878 .flags = FLAG_WWAN | FLAG_SEND_ZLP,
879 .bind = qmi_wwan_bind,
880 .unbind = qmi_wwan_unbind,
881 .manage_power = qmi_wwan_manage_power,
882 .rx_fixup = qmi_wwan_rx_fixup,
883 .data = QMI_WWAN_QUIRK_DTR,
884 };
885
886 #define HUAWEI_VENDOR_ID 0x12D1
887
888 /* map QMI/wwan function by a fixed interface number */
889 #define QMI_FIXED_INTF(vend, prod, num) \
890 USB_DEVICE_INTERFACE_NUMBER(vend, prod, num), \
891 .driver_info = (unsigned long)&qmi_wwan_info
892
893 /* devices requiring "set DTR" quirk */
894 #define QMI_QUIRK_SET_DTR(vend, prod, num) \
895 USB_DEVICE_INTERFACE_NUMBER(vend, prod, num), \
896 .driver_info = (unsigned long)&qmi_wwan_info_quirk_dtr
897
898 /* Gobi 1000 QMI/wwan interface number is 3 according to qcserial */
899 #define QMI_GOBI1K_DEVICE(vend, prod) \
900 QMI_FIXED_INTF(vend, prod, 3)
901
902 /* Gobi 2000/3000 QMI/wwan interface number is 0 according to qcserial */
903 #define QMI_GOBI_DEVICE(vend, prod) \
904 QMI_FIXED_INTF(vend, prod, 0)
905
906 /* Many devices have QMI and DIAG functions which are distinguishable
907 * from other vendor specific functions by class, subclass and
908 * protocol all being 0xff. The DIAG function has exactly 2 endpoints
909 * and is silently rejected when probed.
910 *
911 * This makes it possible to match dynamically numbered QMI functions
912 * as seen on e.g. many Quectel modems.
913 */
914 #define QMI_MATCH_FF_FF_FF(vend, prod) \
915 USB_DEVICE_AND_INTERFACE_INFO(vend, prod, USB_CLASS_VENDOR_SPEC, \
916 USB_SUBCLASS_VENDOR_SPEC, 0xff), \
917 .driver_info = (unsigned long)&qmi_wwan_info_quirk_dtr
918
919 static const struct usb_device_id products[] = {
920 /* 1. CDC ECM like devices match on the control interface */
921 { /* Huawei E392, E398 and possibly others sharing both device id and more... */
922 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 9),
923 .driver_info = (unsigned long)&qmi_wwan_info,
924 },
925 { /* Vodafone/Huawei K5005 (12d1:14c8) and similar modems */
926 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 57),
927 .driver_info = (unsigned long)&qmi_wwan_info,
928 },
929 { /* HUAWEI_INTERFACE_NDIS_CONTROL_QUALCOMM */
930 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 0x01, 0x69),
931 .driver_info = (unsigned long)&qmi_wwan_info,
932 },
933 { /* Motorola Mapphone devices with MDM6600 */
934 USB_VENDOR_AND_INTERFACE_INFO(0x22b8, USB_CLASS_VENDOR_SPEC, 0xfb, 0xff),
935 .driver_info = (unsigned long)&qmi_wwan_info,
936 },
937
938 /* 2. Combined interface devices matching on class+protocol */
939 { /* Huawei E367 and possibly others in "Windows mode" */
940 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 7),
941 .driver_info = (unsigned long)&qmi_wwan_info,
942 },
943 { /* Huawei E392, E398 and possibly others in "Windows mode" */
944 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 17),
945 .driver_info = (unsigned long)&qmi_wwan_info,
946 },
947 { /* HUAWEI_NDIS_SINGLE_INTERFACE_VDF */
948 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 0x01, 0x37),
949 .driver_info = (unsigned long)&qmi_wwan_info,
950 },
951 { /* HUAWEI_INTERFACE_NDIS_HW_QUALCOMM */
952 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 0x01, 0x67),
953 .driver_info = (unsigned long)&qmi_wwan_info,
954 },
955 { /* Pantech UML290, P4200 and more */
956 USB_VENDOR_AND_INTERFACE_INFO(0x106c, USB_CLASS_VENDOR_SPEC, 0xf0, 0xff),
957 .driver_info = (unsigned long)&qmi_wwan_info,
958 },
959 { /* Pantech UML290 - newer firmware */
960 USB_VENDOR_AND_INTERFACE_INFO(0x106c, USB_CLASS_VENDOR_SPEC, 0xf1, 0xff),
961 .driver_info = (unsigned long)&qmi_wwan_info,
962 },
963 { /* Novatel USB551L and MC551 */
964 USB_DEVICE_AND_INTERFACE_INFO(0x1410, 0xb001,
965 USB_CLASS_COMM,
966 USB_CDC_SUBCLASS_ETHERNET,
967 USB_CDC_PROTO_NONE),
968 .driver_info = (unsigned long)&qmi_wwan_info,
969 },
970 { /* Novatel E362 */
971 USB_DEVICE_AND_INTERFACE_INFO(0x1410, 0x9010,
972 USB_CLASS_COMM,
973 USB_CDC_SUBCLASS_ETHERNET,
974 USB_CDC_PROTO_NONE),
975 .driver_info = (unsigned long)&qmi_wwan_info,
976 },
977 { /* Novatel Expedite E371 */
978 USB_DEVICE_AND_INTERFACE_INFO(0x1410, 0x9011,
979 USB_CLASS_COMM,
980 USB_CDC_SUBCLASS_ETHERNET,
981 USB_CDC_PROTO_NONE),
982 .driver_info = (unsigned long)&qmi_wwan_info,
983 },
984 { /* Dell Wireless 5800 (Novatel E362) */
985 USB_DEVICE_AND_INTERFACE_INFO(0x413C, 0x8195,
986 USB_CLASS_COMM,
987 USB_CDC_SUBCLASS_ETHERNET,
988 USB_CDC_PROTO_NONE),
989 .driver_info = (unsigned long)&qmi_wwan_info,
990 },
991 { /* Dell Wireless 5800 V2 (Novatel E362) */
992 USB_DEVICE_AND_INTERFACE_INFO(0x413C, 0x8196,
993 USB_CLASS_COMM,
994 USB_CDC_SUBCLASS_ETHERNET,
995 USB_CDC_PROTO_NONE),
996 .driver_info = (unsigned long)&qmi_wwan_info,
997 },
998 { /* Dell Wireless 5804 (Novatel E371) */
999 USB_DEVICE_AND_INTERFACE_INFO(0x413C, 0x819b,
1000 USB_CLASS_COMM,
1001 USB_CDC_SUBCLASS_ETHERNET,
1002 USB_CDC_PROTO_NONE),
1003 .driver_info = (unsigned long)&qmi_wwan_info,
1004 },
1005 { /* ADU960S */
1006 USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a,
1007 USB_CLASS_COMM,
1008 USB_CDC_SUBCLASS_ETHERNET,
1009 USB_CDC_PROTO_NONE),
1010 .driver_info = (unsigned long)&qmi_wwan_info,
1011 },
1012 { /* HP lt2523 (Novatel E371) */
1013 USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x421d,
1014 USB_CLASS_COMM,
1015 USB_CDC_SUBCLASS_ETHERNET,
1016 USB_CDC_PROTO_NONE),
1017 .driver_info = (unsigned long)&qmi_wwan_info,
1018 },
1019 { /* HP lt4112 LTE/HSPA+ Gobi 4G Module (Huawei me906e) */
1020 USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x581d, USB_CLASS_VENDOR_SPEC, 1, 7),
1021 .driver_info = (unsigned long)&qmi_wwan_info,
1022 },
1023 {QMI_MATCH_FF_FF_FF(0x2c7c, 0x0125)}, /* Quectel EC25, EC20 R2.0 Mini PCIe */
1024 {QMI_MATCH_FF_FF_FF(0x2c7c, 0x0306)}, /* Quectel EP06/EG06/EM06 */
1025 {QMI_MATCH_FF_FF_FF(0x2c7c, 0x0512)}, /* Quectel EG12/EM12 */
1026 {QMI_MATCH_FF_FF_FF(0x2c7c, 0x0620)}, /* Quectel EM160R-GL */
1027 {QMI_MATCH_FF_FF_FF(0x2c7c, 0x0800)}, /* Quectel RM500Q-GL */
1028 {QMI_MATCH_FF_FF_FF(0x2c7c, 0x0801)}, /* Quectel RM520N */
1029
1030 /* 3. Combined interface devices matching on interface number */
1031 {QMI_FIXED_INTF(0x0408, 0xea42, 4)}, /* Yota / Megafon M100-1 */
1032 {QMI_FIXED_INTF(0x05c6, 0x6001, 3)}, /* 4G LTE usb-modem U901 */
1033 {QMI_FIXED_INTF(0x05c6, 0x7000, 0)},
1034 {QMI_FIXED_INTF(0x05c6, 0x7001, 1)},
1035 {QMI_FIXED_INTF(0x05c6, 0x7002, 1)},
1036 {QMI_FIXED_INTF(0x05c6, 0x7101, 1)},
1037 {QMI_FIXED_INTF(0x05c6, 0x7101, 2)},
1038 {QMI_FIXED_INTF(0x05c6, 0x7101, 3)},
1039 {QMI_FIXED_INTF(0x05c6, 0x7102, 1)},
1040 {QMI_FIXED_INTF(0x05c6, 0x7102, 2)},
1041 {QMI_FIXED_INTF(0x05c6, 0x7102, 3)},
1042 {QMI_FIXED_INTF(0x05c6, 0x8000, 7)},
1043 {QMI_FIXED_INTF(0x05c6, 0x8001, 6)},
1044 {QMI_FIXED_INTF(0x05c6, 0x9000, 4)},
1045 {QMI_FIXED_INTF(0x05c6, 0x9003, 4)},
1046 {QMI_FIXED_INTF(0x05c6, 0x9005, 2)},
1047 {QMI_FIXED_INTF(0x05c6, 0x900a, 4)},
1048 {QMI_FIXED_INTF(0x05c6, 0x900b, 2)},
1049 {QMI_FIXED_INTF(0x05c6, 0x900c, 4)},
1050 {QMI_FIXED_INTF(0x05c6, 0x900c, 5)},
1051 {QMI_FIXED_INTF(0x05c6, 0x900c, 6)},
1052 {QMI_FIXED_INTF(0x05c6, 0x900d, 5)},
1053 {QMI_FIXED_INTF(0x05c6, 0x900f, 3)},
1054 {QMI_FIXED_INTF(0x05c6, 0x900f, 4)},
1055 {QMI_FIXED_INTF(0x05c6, 0x900f, 5)},
1056 {QMI_FIXED_INTF(0x05c6, 0x9010, 4)},
1057 {QMI_FIXED_INTF(0x05c6, 0x9010, 5)},
1058 {QMI_FIXED_INTF(0x05c6, 0x9011, 3)},
1059 {QMI_FIXED_INTF(0x05c6, 0x9011, 4)},
1060 {QMI_FIXED_INTF(0x05c6, 0x9021, 1)},
1061 {QMI_FIXED_INTF(0x05c6, 0x9022, 2)},
1062 {QMI_QUIRK_SET_DTR(0x05c6, 0x9025, 4)}, /* Alcatel-sbell ASB TL131 TDD LTE (China Mobile) */
1063 {QMI_FIXED_INTF(0x05c6, 0x9026, 3)},
1064 {QMI_FIXED_INTF(0x05c6, 0x902e, 5)},
1065 {QMI_FIXED_INTF(0x05c6, 0x9031, 5)},
1066 {QMI_FIXED_INTF(0x05c6, 0x9032, 4)},
1067 {QMI_FIXED_INTF(0x05c6, 0x9033, 3)},
1068 {QMI_FIXED_INTF(0x05c6, 0x9033, 4)},
1069 {QMI_FIXED_INTF(0x05c6, 0x9033, 5)},
1070 {QMI_FIXED_INTF(0x05c6, 0x9033, 6)},
1071 {QMI_FIXED_INTF(0x05c6, 0x9034, 3)},
1072 {QMI_FIXED_INTF(0x05c6, 0x9034, 4)},
1073 {QMI_FIXED_INTF(0x05c6, 0x9034, 5)},
1074 {QMI_FIXED_INTF(0x05c6, 0x9034, 6)},
1075 {QMI_FIXED_INTF(0x05c6, 0x9034, 7)},
1076 {QMI_FIXED_INTF(0x05c6, 0x9035, 4)},
1077 {QMI_FIXED_INTF(0x05c6, 0x9036, 3)},
1078 {QMI_FIXED_INTF(0x05c6, 0x9037, 5)},
1079 {QMI_FIXED_INTF(0x05c6, 0x9038, 4)},
1080 {QMI_FIXED_INTF(0x05c6, 0x903b, 7)},
1081 {QMI_FIXED_INTF(0x05c6, 0x903c, 6)},
1082 {QMI_FIXED_INTF(0x05c6, 0x903d, 6)},
1083 {QMI_FIXED_INTF(0x05c6, 0x903e, 5)},
1084 {QMI_FIXED_INTF(0x05c6, 0x9043, 3)},
1085 {QMI_FIXED_INTF(0x05c6, 0x9046, 3)},
1086 {QMI_FIXED_INTF(0x05c6, 0x9046, 4)},
1087 {QMI_FIXED_INTF(0x05c6, 0x9046, 5)},
1088 {QMI_FIXED_INTF(0x05c6, 0x9047, 2)},
1089 {QMI_FIXED_INTF(0x05c6, 0x9047, 3)},
1090 {QMI_FIXED_INTF(0x05c6, 0x9047, 4)},
1091 {QMI_FIXED_INTF(0x05c6, 0x9048, 4)},
1092 {QMI_FIXED_INTF(0x05c6, 0x9048, 5)},
1093 {QMI_FIXED_INTF(0x05c6, 0x9048, 6)},
1094 {QMI_FIXED_INTF(0x05c6, 0x9048, 7)},
1095 {QMI_FIXED_INTF(0x05c6, 0x9048, 8)},
1096 {QMI_FIXED_INTF(0x05c6, 0x904c, 5)},
1097 {QMI_FIXED_INTF(0x05c6, 0x904c, 6)},
1098 {QMI_FIXED_INTF(0x05c6, 0x904c, 7)},
1099 {QMI_FIXED_INTF(0x05c6, 0x904c, 8)},
1100 {QMI_FIXED_INTF(0x05c6, 0x9050, 3)},
1101 {QMI_FIXED_INTF(0x05c6, 0x9052, 4)},
1102 {QMI_FIXED_INTF(0x05c6, 0x9053, 6)},
1103 {QMI_FIXED_INTF(0x05c6, 0x9053, 7)},
1104 {QMI_FIXED_INTF(0x05c6, 0x9054, 5)},
1105 {QMI_FIXED_INTF(0x05c6, 0x9054, 6)},
1106 {QMI_FIXED_INTF(0x05c6, 0x9055, 3)},
1107 {QMI_FIXED_INTF(0x05c6, 0x9055, 4)},
1108 {QMI_FIXED_INTF(0x05c6, 0x9055, 5)},
1109 {QMI_FIXED_INTF(0x05c6, 0x9055, 6)},
1110 {QMI_FIXED_INTF(0x05c6, 0x9055, 7)},
1111 {QMI_FIXED_INTF(0x05c6, 0x9056, 3)},
1112 {QMI_FIXED_INTF(0x05c6, 0x9062, 2)},
1113 {QMI_FIXED_INTF(0x05c6, 0x9062, 3)},
1114 {QMI_FIXED_INTF(0x05c6, 0x9062, 4)},
1115 {QMI_FIXED_INTF(0x05c6, 0x9062, 5)},
1116 {QMI_FIXED_INTF(0x05c6, 0x9062, 6)},
1117 {QMI_FIXED_INTF(0x05c6, 0x9062, 7)},
1118 {QMI_FIXED_INTF(0x05c6, 0x9062, 8)},
1119 {QMI_FIXED_INTF(0x05c6, 0x9062, 9)},
1120 {QMI_FIXED_INTF(0x05c6, 0x9064, 3)},
1121 {QMI_FIXED_INTF(0x05c6, 0x9065, 6)},
1122 {QMI_FIXED_INTF(0x05c6, 0x9065, 7)},
1123 {QMI_FIXED_INTF(0x05c6, 0x9066, 5)},
1124 {QMI_FIXED_INTF(0x05c6, 0x9066, 6)},
1125 {QMI_FIXED_INTF(0x05c6, 0x9067, 1)},
1126 {QMI_FIXED_INTF(0x05c6, 0x9068, 2)},
1127 {QMI_FIXED_INTF(0x05c6, 0x9068, 3)},
1128 {QMI_FIXED_INTF(0x05c6, 0x9068, 4)},
1129 {QMI_FIXED_INTF(0x05c6, 0x9068, 5)},
1130 {QMI_FIXED_INTF(0x05c6, 0x9068, 6)},
1131 {QMI_FIXED_INTF(0x05c6, 0x9068, 7)},
1132 {QMI_FIXED_INTF(0x05c6, 0x9069, 5)},
1133 {QMI_FIXED_INTF(0x05c6, 0x9069, 6)},
1134 {QMI_FIXED_INTF(0x05c6, 0x9069, 7)},
1135 {QMI_FIXED_INTF(0x05c6, 0x9069, 8)},
1136 {QMI_FIXED_INTF(0x05c6, 0x9070, 4)},
1137 {QMI_FIXED_INTF(0x05c6, 0x9070, 5)},
1138 {QMI_FIXED_INTF(0x05c6, 0x9075, 5)},
1139 {QMI_FIXED_INTF(0x05c6, 0x9076, 4)},
1140 {QMI_FIXED_INTF(0x05c6, 0x9076, 5)},
1141 {QMI_FIXED_INTF(0x05c6, 0x9076, 6)},
1142 {QMI_FIXED_INTF(0x05c6, 0x9076, 7)},
1143 {QMI_FIXED_INTF(0x05c6, 0x9076, 8)},
1144 {QMI_FIXED_INTF(0x05c6, 0x9077, 3)},
1145 {QMI_FIXED_INTF(0x05c6, 0x9077, 4)},
1146 {QMI_FIXED_INTF(0x05c6, 0x9077, 5)},
1147 {QMI_FIXED_INTF(0x05c6, 0x9077, 6)},
1148 {QMI_FIXED_INTF(0x05c6, 0x9078, 3)},
1149 {QMI_FIXED_INTF(0x05c6, 0x9079, 4)},
1150 {QMI_FIXED_INTF(0x05c6, 0x9079, 5)},
1151 {QMI_FIXED_INTF(0x05c6, 0x9079, 6)},
1152 {QMI_FIXED_INTF(0x05c6, 0x9079, 7)},
1153 {QMI_FIXED_INTF(0x05c6, 0x9079, 8)},
1154 {QMI_FIXED_INTF(0x05c6, 0x9080, 5)},
1155 {QMI_FIXED_INTF(0x05c6, 0x9080, 6)},
1156 {QMI_FIXED_INTF(0x05c6, 0x9080, 7)},
1157 {QMI_FIXED_INTF(0x05c6, 0x9080, 8)},
1158 {QMI_FIXED_INTF(0x05c6, 0x9083, 3)},
1159 {QMI_FIXED_INTF(0x05c6, 0x9084, 4)},
1160 {QMI_QUIRK_SET_DTR(0x05c6, 0x9091, 2)}, /* Compal RXM-G1 */
1161 {QMI_FIXED_INTF(0x05c6, 0x90b2, 3)}, /* ublox R410M */
1162 {QMI_QUIRK_SET_DTR(0x05c6, 0x90db, 2)}, /* Compal RXM-G1 */
1163 {QMI_FIXED_INTF(0x05c6, 0x920d, 0)},
1164 {QMI_FIXED_INTF(0x05c6, 0x920d, 5)},
1165 {QMI_QUIRK_SET_DTR(0x05c6, 0x9625, 4)}, /* YUGA CLM920-NC5 */
1166 {QMI_FIXED_INTF(0x0846, 0x68a2, 8)},
1167 {QMI_FIXED_INTF(0x0846, 0x68d3, 8)}, /* Netgear Aircard 779S */
1168 {QMI_FIXED_INTF(0x12d1, 0x140c, 1)}, /* Huawei E173 */
1169 {QMI_FIXED_INTF(0x12d1, 0x14ac, 1)}, /* Huawei E1820 */
1170 {QMI_FIXED_INTF(0x1435, 0x0918, 3)}, /* Wistron NeWeb D16Q1 */
1171 {QMI_FIXED_INTF(0x1435, 0x0918, 4)}, /* Wistron NeWeb D16Q1 */
1172 {QMI_FIXED_INTF(0x1435, 0x0918, 5)}, /* Wistron NeWeb D16Q1 */
1173 {QMI_FIXED_INTF(0x1435, 0x3185, 4)}, /* Wistron NeWeb M18Q5 */
1174 {QMI_FIXED_INTF(0x1435, 0xd111, 4)}, /* M9615A DM11-1 D51QC */
1175 {QMI_FIXED_INTF(0x1435, 0xd181, 3)}, /* Wistron NeWeb D18Q1 */
1176 {QMI_FIXED_INTF(0x1435, 0xd181, 4)}, /* Wistron NeWeb D18Q1 */
1177 {QMI_FIXED_INTF(0x1435, 0xd181, 5)}, /* Wistron NeWeb D18Q1 */
1178 {QMI_FIXED_INTF(0x1435, 0xd182, 4)}, /* Wistron NeWeb D18 */
1179 {QMI_FIXED_INTF(0x1435, 0xd182, 5)}, /* Wistron NeWeb D18 */
1180 {QMI_FIXED_INTF(0x1435, 0xd191, 4)}, /* Wistron NeWeb D19Q1 */
1181 {QMI_QUIRK_SET_DTR(0x1508, 0x1001, 4)}, /* Fibocom NL668 series */
1182 {QMI_FIXED_INTF(0x1690, 0x7588, 4)}, /* ASKEY WWHC050 */
1183 {QMI_FIXED_INTF(0x16d8, 0x6003, 0)}, /* CMOTech 6003 */
1184 {QMI_FIXED_INTF(0x16d8, 0x6007, 0)}, /* CMOTech CHE-628S */
1185 {QMI_FIXED_INTF(0x16d8, 0x6008, 0)}, /* CMOTech CMU-301 */
1186 {QMI_FIXED_INTF(0x16d8, 0x6280, 0)}, /* CMOTech CHU-628 */
1187 {QMI_FIXED_INTF(0x16d8, 0x7001, 0)}, /* CMOTech CHU-720S */
1188 {QMI_FIXED_INTF(0x16d8, 0x7002, 0)}, /* CMOTech 7002 */
1189 {QMI_FIXED_INTF(0x16d8, 0x7003, 4)}, /* CMOTech CHU-629K */
1190 {QMI_FIXED_INTF(0x16d8, 0x7004, 3)}, /* CMOTech 7004 */
1191 {QMI_FIXED_INTF(0x16d8, 0x7006, 5)}, /* CMOTech CGU-629 */
1192 {QMI_FIXED_INTF(0x16d8, 0x700a, 4)}, /* CMOTech CHU-629S */
1193 {QMI_FIXED_INTF(0x16d8, 0x7211, 0)}, /* CMOTech CHU-720I */
1194 {QMI_FIXED_INTF(0x16d8, 0x7212, 0)}, /* CMOTech 7212 */
1195 {QMI_FIXED_INTF(0x16d8, 0x7213, 0)}, /* CMOTech 7213 */
1196 {QMI_FIXED_INTF(0x16d8, 0x7251, 1)}, /* CMOTech 7251 */
1197 {QMI_FIXED_INTF(0x16d8, 0x7252, 1)}, /* CMOTech 7252 */
1198 {QMI_FIXED_INTF(0x16d8, 0x7253, 1)}, /* CMOTech 7253 */
1199 {QMI_FIXED_INTF(0x19d2, 0x0002, 1)},
1200 {QMI_FIXED_INTF(0x19d2, 0x0012, 1)},
1201 {QMI_FIXED_INTF(0x19d2, 0x0017, 3)},
1202 {QMI_FIXED_INTF(0x19d2, 0x0019, 3)}, /* ONDA MT689DC */
1203 {QMI_FIXED_INTF(0x19d2, 0x0021, 4)},
1204 {QMI_FIXED_INTF(0x19d2, 0x0025, 1)},
1205 {QMI_FIXED_INTF(0x19d2, 0x0031, 4)},
1206 {QMI_FIXED_INTF(0x19d2, 0x0042, 4)},
1207 {QMI_FIXED_INTF(0x19d2, 0x0049, 5)},
1208 {QMI_FIXED_INTF(0x19d2, 0x0052, 4)},
1209 {QMI_FIXED_INTF(0x19d2, 0x0055, 1)}, /* ZTE (Vodafone) K3520-Z */
1210 {QMI_FIXED_INTF(0x19d2, 0x0058, 4)},
1211 {QMI_FIXED_INTF(0x19d2, 0x0063, 4)}, /* ZTE (Vodafone) K3565-Z */
1212 {QMI_FIXED_INTF(0x19d2, 0x0104, 4)}, /* ZTE (Vodafone) K4505-Z */
1213 {QMI_FIXED_INTF(0x19d2, 0x0113, 5)},
1214 {QMI_FIXED_INTF(0x19d2, 0x0118, 5)},
1215 {QMI_FIXED_INTF(0x19d2, 0x0121, 5)},
1216 {QMI_FIXED_INTF(0x19d2, 0x0123, 4)},
1217 {QMI_FIXED_INTF(0x19d2, 0x0124, 5)},
1218 {QMI_FIXED_INTF(0x19d2, 0x0125, 6)},
1219 {QMI_FIXED_INTF(0x19d2, 0x0126, 5)},
1220 {QMI_FIXED_INTF(0x19d2, 0x0130, 1)},
1221 {QMI_FIXED_INTF(0x19d2, 0x0133, 3)},
1222 {QMI_FIXED_INTF(0x19d2, 0x0141, 5)},
1223 {QMI_FIXED_INTF(0x19d2, 0x0157, 5)}, /* ZTE MF683 */
1224 {QMI_FIXED_INTF(0x19d2, 0x0158, 3)},
1225 {QMI_FIXED_INTF(0x19d2, 0x0167, 4)}, /* ZTE MF820D */
1226 {QMI_FIXED_INTF(0x19d2, 0x0168, 4)},
1227 {QMI_FIXED_INTF(0x19d2, 0x0176, 3)},
1228 {QMI_FIXED_INTF(0x19d2, 0x0178, 3)},
1229 {QMI_FIXED_INTF(0x19d2, 0x0189, 4)}, /* ZTE MF290 */
1230 {QMI_FIXED_INTF(0x19d2, 0x0191, 4)}, /* ZTE EuFi890 */
1231 {QMI_FIXED_INTF(0x19d2, 0x0199, 1)}, /* ZTE MF820S */
1232 {QMI_FIXED_INTF(0x19d2, 0x0200, 1)},
1233 {QMI_FIXED_INTF(0x19d2, 0x0257, 3)}, /* ZTE MF821 */
1234 {QMI_FIXED_INTF(0x19d2, 0x0265, 4)}, /* ONDA MT8205 4G LTE */
1235 {QMI_FIXED_INTF(0x19d2, 0x0284, 4)}, /* ZTE MF880 */
1236 {QMI_FIXED_INTF(0x19d2, 0x0326, 4)}, /* ZTE MF821D */
1237 {QMI_FIXED_INTF(0x19d2, 0x0396, 3)}, /* ZTE ZM8620 */
1238 {QMI_FIXED_INTF(0x19d2, 0x0412, 4)}, /* Telewell TW-LTE 4G */
1239 {QMI_FIXED_INTF(0x19d2, 0x1008, 4)}, /* ZTE (Vodafone) K3570-Z */
1240 {QMI_FIXED_INTF(0x19d2, 0x1010, 4)}, /* ZTE (Vodafone) K3571-Z */
1241 {QMI_FIXED_INTF(0x19d2, 0x1012, 4)},
1242 {QMI_FIXED_INTF(0x19d2, 0x1018, 3)}, /* ZTE (Vodafone) K5006-Z */
1243 {QMI_FIXED_INTF(0x19d2, 0x1021, 2)},
1244 {QMI_FIXED_INTF(0x19d2, 0x1245, 4)},
1245 {QMI_FIXED_INTF(0x19d2, 0x1247, 4)},
1246 {QMI_FIXED_INTF(0x19d2, 0x1252, 4)},
1247 {QMI_FIXED_INTF(0x19d2, 0x1254, 4)},
1248 {QMI_FIXED_INTF(0x19d2, 0x1255, 3)},
1249 {QMI_FIXED_INTF(0x19d2, 0x1255, 4)},
1250 {QMI_FIXED_INTF(0x19d2, 0x1256, 4)},
1251 {QMI_FIXED_INTF(0x19d2, 0x1270, 5)}, /* ZTE MF667 */
1252 {QMI_FIXED_INTF(0x19d2, 0x1275, 3)}, /* ZTE P685M */
1253 {QMI_FIXED_INTF(0x19d2, 0x1401, 2)},
1254 {QMI_FIXED_INTF(0x19d2, 0x1402, 2)}, /* ZTE MF60 */
1255 {QMI_FIXED_INTF(0x19d2, 0x1424, 2)},
1256 {QMI_FIXED_INTF(0x19d2, 0x1425, 2)},
1257 {QMI_FIXED_INTF(0x19d2, 0x1426, 2)}, /* ZTE MF91 */
1258 {QMI_FIXED_INTF(0x19d2, 0x1428, 2)}, /* Telewell TW-LTE 4G v2 */
1259 {QMI_FIXED_INTF(0x19d2, 0x1432, 3)}, /* ZTE ME3620 */
1260 {QMI_FIXED_INTF(0x19d2, 0x2002, 4)}, /* ZTE (Vodafone) K3765-Z */
1261 {QMI_FIXED_INTF(0x2001, 0x7e16, 3)}, /* D-Link DWM-221 */
1262 {QMI_FIXED_INTF(0x2001, 0x7e19, 4)}, /* D-Link DWM-221 B1 */
1263 {QMI_FIXED_INTF(0x2001, 0x7e35, 4)}, /* D-Link DWM-222 */
1264 {QMI_FIXED_INTF(0x2001, 0x7e3d, 4)}, /* D-Link DWM-222 A2 */
1265 {QMI_FIXED_INTF(0x2020, 0x2031, 4)}, /* Olicard 600 */
1266 {QMI_FIXED_INTF(0x2020, 0x2033, 4)}, /* BroadMobi BM806U */
1267 {QMI_QUIRK_SET_DTR(0x2020, 0x2060, 4)}, /* BroadMobi BM818 */
1268 {QMI_FIXED_INTF(0x0f3d, 0x68a2, 8)}, /* Sierra Wireless MC7700 */
1269 {QMI_FIXED_INTF(0x114f, 0x68a2, 8)}, /* Sierra Wireless MC7750 */
1270 {QMI_FIXED_INTF(0x1199, 0x68a2, 8)}, /* Sierra Wireless MC7710 in QMI mode */
1271 {QMI_FIXED_INTF(0x1199, 0x68a2, 19)}, /* Sierra Wireless MC7710 in QMI mode */
1272 {QMI_QUIRK_SET_DTR(0x1199, 0x68c0, 8)}, /* Sierra Wireless MC7304/MC7354, WP76xx */
1273 {QMI_QUIRK_SET_DTR(0x1199, 0x68c0, 10)},/* Sierra Wireless MC7304/MC7354 */
1274 {QMI_FIXED_INTF(0x1199, 0x901c, 8)}, /* Sierra Wireless EM7700 */
1275 {QMI_FIXED_INTF(0x1199, 0x901f, 8)}, /* Sierra Wireless EM7355 */
1276 {QMI_FIXED_INTF(0x1199, 0x9041, 8)}, /* Sierra Wireless MC7305/MC7355 */
1277 {QMI_FIXED_INTF(0x1199, 0x9041, 10)}, /* Sierra Wireless MC7305/MC7355 */
1278 {QMI_FIXED_INTF(0x1199, 0x9051, 8)}, /* Netgear AirCard 340U */
1279 {QMI_FIXED_INTF(0x1199, 0x9053, 8)}, /* Sierra Wireless Modem */
1280 {QMI_FIXED_INTF(0x1199, 0x9054, 8)}, /* Sierra Wireless Modem */
1281 {QMI_FIXED_INTF(0x1199, 0x9055, 8)}, /* Netgear AirCard 341U */
1282 {QMI_FIXED_INTF(0x1199, 0x9056, 8)}, /* Sierra Wireless Modem */
1283 {QMI_FIXED_INTF(0x1199, 0x9057, 8)},
1284 {QMI_FIXED_INTF(0x1199, 0x9061, 8)}, /* Sierra Wireless Modem */
1285 {QMI_FIXED_INTF(0x1199, 0x9063, 8)}, /* Sierra Wireless EM7305 */
1286 {QMI_FIXED_INTF(0x1199, 0x9063, 10)}, /* Sierra Wireless EM7305 */
1287 {QMI_QUIRK_SET_DTR(0x1199, 0x9071, 8)}, /* Sierra Wireless MC74xx */
1288 {QMI_QUIRK_SET_DTR(0x1199, 0x9071, 10)},/* Sierra Wireless MC74xx */
1289 {QMI_QUIRK_SET_DTR(0x1199, 0x9079, 8)}, /* Sierra Wireless EM74xx */
1290 {QMI_QUIRK_SET_DTR(0x1199, 0x9079, 10)},/* Sierra Wireless EM74xx */
1291 {QMI_QUIRK_SET_DTR(0x1199, 0x907b, 8)}, /* Sierra Wireless EM74xx */
1292 {QMI_QUIRK_SET_DTR(0x1199, 0x907b, 10)},/* Sierra Wireless EM74xx */
1293 {QMI_QUIRK_SET_DTR(0x1199, 0x9091, 8)}, /* Sierra Wireless EM7565 */
1294 {QMI_FIXED_INTF(0x1bbb, 0x011e, 4)}, /* Telekom Speedstick LTE II (Alcatel One Touch L100V LTE) */
1295 {QMI_FIXED_INTF(0x1bbb, 0x0203, 2)}, /* Alcatel L800MA */
1296 {QMI_FIXED_INTF(0x2357, 0x0201, 4)}, /* TP-LINK HSUPA Modem MA180 */
1297 {QMI_FIXED_INTF(0x2357, 0x9000, 4)}, /* TP-LINK MA260 */
1298 {QMI_QUIRK_SET_DTR(0x1bc7, 0x1031, 3)}, /* Telit LE910C1-EUX */
1299 {QMI_QUIRK_SET_DTR(0x1bc7, 0x103a, 0)}, /* Telit LE910C4-WWX */
1300 {QMI_QUIRK_SET_DTR(0x1bc7, 0x1040, 2)}, /* Telit LE922A */
1301 {QMI_QUIRK_SET_DTR(0x1bc7, 0x1050, 2)}, /* Telit FN980 */
1302 {QMI_QUIRK_SET_DTR(0x1bc7, 0x1060, 2)}, /* Telit LN920 */
1303 {QMI_QUIRK_SET_DTR(0x1bc7, 0x1070, 2)}, /* Telit FN990 */
1304 {QMI_QUIRK_SET_DTR(0x1bc7, 0x1080, 2)}, /* Telit FE990 */
1305 {QMI_FIXED_INTF(0x1bc7, 0x1100, 3)}, /* Telit ME910 */
1306 {QMI_FIXED_INTF(0x1bc7, 0x1101, 3)}, /* Telit ME910 dual modem */
1307 {QMI_FIXED_INTF(0x1bc7, 0x1200, 5)}, /* Telit LE920 */
1308 {QMI_QUIRK_SET_DTR(0x1bc7, 0x1201, 2)}, /* Telit LE920, LE920A4 */
1309 {QMI_QUIRK_SET_DTR(0x1bc7, 0x1230, 2)}, /* Telit LE910Cx */
1310 {QMI_QUIRK_SET_DTR(0x1bc7, 0x1260, 2)}, /* Telit LE910Cx */
1311 {QMI_QUIRK_SET_DTR(0x1bc7, 0x1261, 2)}, /* Telit LE910Cx */
1312 {QMI_QUIRK_SET_DTR(0x1bc7, 0x1900, 1)}, /* Telit LN940 series */
1313 {QMI_FIXED_INTF(0x1c9e, 0x9801, 3)}, /* Telewell TW-3G HSPA+ */
1314 {QMI_FIXED_INTF(0x1c9e, 0x9803, 4)}, /* Telewell TW-3G HSPA+ */
1315 {QMI_FIXED_INTF(0x1c9e, 0x9b01, 3)}, /* XS Stick W100-2 from 4G Systems */
1316 {QMI_FIXED_INTF(0x0b3c, 0xc000, 4)}, /* Olivetti Olicard 100 */
1317 {QMI_FIXED_INTF(0x0b3c, 0xc001, 4)}, /* Olivetti Olicard 120 */
1318 {QMI_FIXED_INTF(0x0b3c, 0xc002, 4)}, /* Olivetti Olicard 140 */
1319 {QMI_FIXED_INTF(0x0b3c, 0xc004, 6)}, /* Olivetti Olicard 155 */
1320 {QMI_FIXED_INTF(0x0b3c, 0xc005, 6)}, /* Olivetti Olicard 200 */
1321 {QMI_FIXED_INTF(0x0b3c, 0xc00a, 6)}, /* Olivetti Olicard 160 */
1322 {QMI_FIXED_INTF(0x0b3c, 0xc00b, 4)}, /* Olivetti Olicard 500 */
1323 {QMI_FIXED_INTF(0x1e2d, 0x0060, 4)}, /* Cinterion PLxx */
1324 {QMI_QUIRK_SET_DTR(0x1e2d, 0x006f, 8)}, /* Cinterion PLS83/PLS63 */
1325 {QMI_FIXED_INTF(0x1e2d, 0x0053, 4)}, /* Cinterion PHxx,PXxx */
1326 {QMI_FIXED_INTF(0x1e2d, 0x0063, 10)}, /* Cinterion ALASxx (1 RmNet) */
1327 {QMI_FIXED_INTF(0x1e2d, 0x0082, 4)}, /* Cinterion PHxx,PXxx (2 RmNet) */
1328 {QMI_FIXED_INTF(0x1e2d, 0x0082, 5)}, /* Cinterion PHxx,PXxx (2 RmNet) */
1329 {QMI_FIXED_INTF(0x1e2d, 0x0083, 4)}, /* Cinterion PHxx,PXxx (1 RmNet + USB Audio)*/
1330 {QMI_QUIRK_SET_DTR(0x1e2d, 0x00b0, 4)}, /* Cinterion CLS8 */
1331 {QMI_FIXED_INTF(0x1e2d, 0x00b7, 0)}, /* Cinterion MV31 RmNet */
1332 {QMI_FIXED_INTF(0x413c, 0x81a2, 8)}, /* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card */
1333 {QMI_FIXED_INTF(0x413c, 0x81a3, 8)}, /* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card */
1334 {QMI_FIXED_INTF(0x413c, 0x81a4, 8)}, /* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card */
1335 {QMI_FIXED_INTF(0x413c, 0x81a8, 8)}, /* Dell Wireless 5808 Gobi(TM) 4G LTE Mobile Broadband Card */
1336 {QMI_FIXED_INTF(0x413c, 0x81a9, 8)}, /* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card */
1337 {QMI_FIXED_INTF(0x413c, 0x81b1, 8)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card */
1338 {QMI_FIXED_INTF(0x413c, 0x81b3, 8)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */
1339 {QMI_FIXED_INTF(0x413c, 0x81b6, 8)}, /* Dell Wireless 5811e */
1340 {QMI_FIXED_INTF(0x413c, 0x81b6, 10)}, /* Dell Wireless 5811e */
1341 {QMI_FIXED_INTF(0x413c, 0x81c2, 8)}, /* Dell Wireless 5811e */
1342 {QMI_FIXED_INTF(0x413c, 0x81cc, 8)}, /* Dell Wireless 5816e */
1343 {QMI_FIXED_INTF(0x413c, 0x81d7, 0)}, /* Dell Wireless 5821e */
1344 {QMI_FIXED_INTF(0x413c, 0x81d7, 1)}, /* Dell Wireless 5821e preproduction config */
1345 {QMI_FIXED_INTF(0x413c, 0x81e0, 0)}, /* Dell Wireless 5821e with eSIM support*/
1346 {QMI_FIXED_INTF(0x413c, 0x81e4, 0)}, /* Dell Wireless 5829e with eSIM support*/
1347 {QMI_FIXED_INTF(0x413c, 0x81e6, 0)}, /* Dell Wireless 5829e */
1348 {QMI_FIXED_INTF(0x03f0, 0x4e1d, 8)}, /* HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module */
1349 {QMI_FIXED_INTF(0x03f0, 0x9d1d, 1)}, /* HP lt4120 Snapdragon X5 LTE */
1350 {QMI_FIXED_INTF(0x22de, 0x9061, 3)}, /* WeTelecom WPD-600N */
1351 {QMI_QUIRK_SET_DTR(0x1e0e, 0x9001, 5)}, /* SIMCom 7100E, 7230E, 7600E ++ */
1352 {QMI_QUIRK_SET_DTR(0x2c7c, 0x0121, 4)}, /* Quectel EC21 Mini PCIe */
1353 {QMI_QUIRK_SET_DTR(0x2c7c, 0x0191, 4)}, /* Quectel EG91 */
1354 {QMI_QUIRK_SET_DTR(0x2c7c, 0x0195, 4)}, /* Quectel EG95 */
1355 {QMI_FIXED_INTF(0x2c7c, 0x0296, 4)}, /* Quectel BG96 */
1356 {QMI_QUIRK_SET_DTR(0x2c7c, 0x030e, 4)}, /* Quectel EM05GV2 */
1357 {QMI_QUIRK_SET_DTR(0x2cb7, 0x0104, 4)}, /* Fibocom NL678 series */
1358 {QMI_FIXED_INTF(0x0489, 0xe0b4, 0)}, /* Foxconn T77W968 LTE */
1359 {QMI_FIXED_INTF(0x0489, 0xe0b5, 0)}, /* Foxconn T77W968 LTE with eSIM support*/
1360 {QMI_FIXED_INTF(0x2692, 0x9025, 4)}, /* Cellient MPL200 (rebranded Qualcomm 05c6:9025) */
1361 {QMI_QUIRK_SET_DTR(0x1546, 0x1342, 4)}, /* u-blox LARA-L6 */
1362
1363 /* 4. Gobi 1000 devices */
1364 {QMI_GOBI1K_DEVICE(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */
1365 {QMI_GOBI1K_DEVICE(0x03f0, 0x1f1d)}, /* HP un2400 Gobi Modem Device */
1366 {QMI_GOBI1K_DEVICE(0x04da, 0x250d)}, /* Panasonic Gobi Modem device */
1367 {QMI_GOBI1K_DEVICE(0x413c, 0x8172)}, /* Dell Gobi Modem device */
1368 {QMI_GOBI1K_DEVICE(0x1410, 0xa001)}, /* Novatel/Verizon USB-1000 */
1369 {QMI_GOBI1K_DEVICE(0x1410, 0xa002)}, /* Novatel Gobi Modem device */
1370 {QMI_GOBI1K_DEVICE(0x1410, 0xa003)}, /* Novatel Gobi Modem device */
1371 {QMI_GOBI1K_DEVICE(0x1410, 0xa004)}, /* Novatel Gobi Modem device */
1372 {QMI_GOBI1K_DEVICE(0x1410, 0xa005)}, /* Novatel Gobi Modem device */
1373 {QMI_GOBI1K_DEVICE(0x1410, 0xa006)}, /* Novatel Gobi Modem device */
1374 {QMI_GOBI1K_DEVICE(0x1410, 0xa007)}, /* Novatel Gobi Modem device */
1375 {QMI_GOBI1K_DEVICE(0x0b05, 0x1776)}, /* Asus Gobi Modem device */
1376 {QMI_GOBI1K_DEVICE(0x19d2, 0xfff3)}, /* ONDA Gobi Modem device */
1377 {QMI_GOBI1K_DEVICE(0x05c6, 0x9001)}, /* Generic Gobi Modem device */
1378 {QMI_GOBI1K_DEVICE(0x05c6, 0x9002)}, /* Generic Gobi Modem device */
1379 {QMI_GOBI1K_DEVICE(0x05c6, 0x9202)}, /* Generic Gobi Modem device */
1380 {QMI_GOBI1K_DEVICE(0x05c6, 0x9203)}, /* Generic Gobi Modem device */
1381 {QMI_GOBI1K_DEVICE(0x05c6, 0x9222)}, /* Generic Gobi Modem device */
1382 {QMI_GOBI1K_DEVICE(0x05c6, 0x9009)}, /* Generic Gobi Modem device */
1383
1384 /* 5. Gobi 2000 and 3000 devices */
1385 {QMI_GOBI_DEVICE(0x413c, 0x8186)}, /* Dell Gobi 2000 Modem device (N0218, VU936) */
1386 {QMI_GOBI_DEVICE(0x413c, 0x8194)}, /* Dell Gobi 3000 Composite */
1387 {QMI_GOBI_DEVICE(0x05c6, 0x920b)}, /* Generic Gobi 2000 Modem device */
1388 {QMI_GOBI_DEVICE(0x05c6, 0x9225)}, /* Sony Gobi 2000 Modem device (N0279, VU730) */
1389 {QMI_GOBI_DEVICE(0x05c6, 0x9245)}, /* Samsung Gobi 2000 Modem device (VL176) */
1390 {QMI_GOBI_DEVICE(0x03f0, 0x251d)}, /* HP Gobi 2000 Modem device (VP412) */
1391 {QMI_GOBI_DEVICE(0x05c6, 0x9215)}, /* Acer Gobi 2000 Modem device (VP413) */
1392 {QMI_FIXED_INTF(0x05c6, 0x9215, 4)}, /* Quectel EC20 Mini PCIe */
1393 {QMI_GOBI_DEVICE(0x05c6, 0x9265)}, /* Asus Gobi 2000 Modem device (VR305) */
1394 {QMI_GOBI_DEVICE(0x05c6, 0x9235)}, /* Top Global Gobi 2000 Modem device (VR306) */
1395 {QMI_GOBI_DEVICE(0x05c6, 0x9275)}, /* iRex Technologies Gobi 2000 Modem device (VR307) */
1396 {QMI_GOBI_DEVICE(0x0af0, 0x8120)}, /* Option GTM681W */
1397 {QMI_GOBI_DEVICE(0x1199, 0x68a5)}, /* Sierra Wireless Modem */
1398 {QMI_GOBI_DEVICE(0x1199, 0x68a9)}, /* Sierra Wireless Modem */
1399 {QMI_GOBI_DEVICE(0x1199, 0x9001)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
1400 {QMI_GOBI_DEVICE(0x1199, 0x9002)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
1401 {QMI_GOBI_DEVICE(0x1199, 0x9003)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
1402 {QMI_GOBI_DEVICE(0x1199, 0x9004)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
1403 {QMI_GOBI_DEVICE(0x1199, 0x9005)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
1404 {QMI_GOBI_DEVICE(0x1199, 0x9006)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
1405 {QMI_GOBI_DEVICE(0x1199, 0x9007)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
1406 {QMI_GOBI_DEVICE(0x1199, 0x9008)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
1407 {QMI_GOBI_DEVICE(0x1199, 0x9009)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
1408 {QMI_GOBI_DEVICE(0x1199, 0x900a)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
1409 {QMI_GOBI_DEVICE(0x1199, 0x9011)}, /* Sierra Wireless Gobi 2000 Modem device (MC8305) */
1410 {QMI_GOBI_DEVICE(0x16d8, 0x8002)}, /* CMDTech Gobi 2000 Modem device (VU922) */
1411 {QMI_GOBI_DEVICE(0x05c6, 0x9205)}, /* Gobi 2000 Modem device */
1412 {QMI_GOBI_DEVICE(0x1199, 0x9013)}, /* Sierra Wireless Gobi 3000 Modem device (MC8355) */
1413 {QMI_GOBI_DEVICE(0x03f0, 0x371d)}, /* HP un2430 Mobile Broadband Module */
1414 {QMI_GOBI_DEVICE(0x1199, 0x9015)}, /* Sierra Wireless Gobi 3000 Modem device */
1415 {QMI_GOBI_DEVICE(0x1199, 0x9019)}, /* Sierra Wireless Gobi 3000 Modem device */
1416 {QMI_GOBI_DEVICE(0x1199, 0x901b)}, /* Sierra Wireless MC7770 */
1417 {QMI_GOBI_DEVICE(0x12d1, 0x14f1)}, /* Sony Gobi 3000 Composite */
1418 {QMI_GOBI_DEVICE(0x1410, 0xa021)}, /* Foxconn Gobi 3000 Modem device (Novatel E396) */
1419
1420 { } /* END */
1421 };
1422 MODULE_DEVICE_TABLE(usb, products);
1423
quectel_ec20_detected(struct usb_interface * intf)1424 static bool quectel_ec20_detected(struct usb_interface *intf)
1425 {
1426 struct usb_device *dev = interface_to_usbdev(intf);
1427
1428 if (dev->actconfig &&
1429 le16_to_cpu(dev->descriptor.idVendor) == 0x05c6 &&
1430 le16_to_cpu(dev->descriptor.idProduct) == 0x9215 &&
1431 dev->actconfig->desc.bNumInterfaces == 5)
1432 return true;
1433
1434 return false;
1435 }
1436
qmi_wwan_probe(struct usb_interface * intf,const struct usb_device_id * prod)1437 static int qmi_wwan_probe(struct usb_interface *intf,
1438 const struct usb_device_id *prod)
1439 {
1440 struct usb_device_id *id = (struct usb_device_id *)prod;
1441 struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc;
1442
1443 /* Workaround to enable dynamic IDs. This disables usbnet
1444 * blacklisting functionality. Which, if required, can be
1445 * reimplemented here by using a magic "blacklist" value
1446 * instead of 0 in the static device id table
1447 */
1448 if (!id->driver_info) {
1449 dev_dbg(&intf->dev, "setting defaults for dynamic device id\n");
1450 id->driver_info = (unsigned long)&qmi_wwan_info;
1451 }
1452
1453 /* There are devices where the same interface number can be
1454 * configured as different functions. We should only bind to
1455 * vendor specific functions when matching on interface number
1456 */
1457 if (id->match_flags & USB_DEVICE_ID_MATCH_INT_NUMBER &&
1458 desc->bInterfaceClass != USB_CLASS_VENDOR_SPEC) {
1459 dev_dbg(&intf->dev,
1460 "Rejecting interface number match for class %02x\n",
1461 desc->bInterfaceClass);
1462 return -ENODEV;
1463 }
1464
1465 /* Quectel EC20 quirk where we've QMI on interface 4 instead of 0 */
1466 if (quectel_ec20_detected(intf) && desc->bInterfaceNumber == 0) {
1467 dev_dbg(&intf->dev, "Quectel EC20 quirk, skipping interface 0\n");
1468 return -ENODEV;
1469 }
1470
1471 /* Several Quectel modems supports dynamic interface configuration, so
1472 * we need to match on class/subclass/protocol. These values are
1473 * identical for the diagnostic- and QMI-interface, but bNumEndpoints is
1474 * different. Ignore the current interface if the number of endpoints
1475 * equals the number for the diag interface (two).
1476 */
1477 if (desc->bNumEndpoints == 2)
1478 return -ENODEV;
1479
1480 return usbnet_probe(intf, id);
1481 }
1482
qmi_wwan_disconnect(struct usb_interface * intf)1483 static void qmi_wwan_disconnect(struct usb_interface *intf)
1484 {
1485 struct usbnet *dev = usb_get_intfdata(intf);
1486 struct qmi_wwan_state *info;
1487 struct list_head *iter;
1488 struct net_device *ldev;
1489 LIST_HEAD(list);
1490
1491 /* called twice if separate control and data intf */
1492 if (!dev)
1493 return;
1494 info = (void *)&dev->data;
1495 if (info->flags & QMI_WWAN_FLAG_MUX) {
1496 if (!rtnl_trylock()) {
1497 restart_syscall();
1498 return;
1499 }
1500 rcu_read_lock();
1501 netdev_for_each_upper_dev_rcu(dev->net, ldev, iter)
1502 qmimux_unregister_device(ldev, &list);
1503 rcu_read_unlock();
1504 unregister_netdevice_many(&list);
1505 rtnl_unlock();
1506 info->flags &= ~QMI_WWAN_FLAG_MUX;
1507 }
1508 usbnet_disconnect(intf);
1509 }
1510
1511 static struct usb_driver qmi_wwan_driver = {
1512 .name = "qmi_wwan",
1513 .id_table = products,
1514 .probe = qmi_wwan_probe,
1515 .disconnect = qmi_wwan_disconnect,
1516 .suspend = qmi_wwan_suspend,
1517 .resume = qmi_wwan_resume,
1518 .reset_resume = qmi_wwan_resume,
1519 .supports_autosuspend = 1,
1520 .disable_hub_initiated_lpm = 1,
1521 };
1522
1523 module_usb_driver(qmi_wwan_driver);
1524
1525 MODULE_AUTHOR("Bjørn Mork <bjorn@mork.no>");
1526 MODULE_DESCRIPTION("Qualcomm MSM Interface (QMI) WWAN driver");
1527 MODULE_LICENSE("GPL");
1528