xref: /openbmc/linux/drivers/net/usb/qmi_wwan.c (revision 12eb4683)
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/netdevice.h>
15 #include <linux/ethtool.h>
16 #include <linux/etherdevice.h>
17 #include <linux/mii.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 
23 /* This driver supports wwan (3G/LTE/?) devices using a vendor
24  * specific management protocol called Qualcomm MSM Interface (QMI) -
25  * in addition to the more common AT commands over serial interface
26  * management
27  *
28  * QMI is wrapped in CDC, using CDC encapsulated commands on the
29  * control ("master") interface of a two-interface CDC Union
30  * resembling standard CDC ECM.  The devices do not use the control
31  * interface for any other CDC messages.  Most likely because the
32  * management protocol is used in place of the standard CDC
33  * notifications NOTIFY_NETWORK_CONNECTION and NOTIFY_SPEED_CHANGE
34  *
35  * Alternatively, control and data functions can be combined in a
36  * single USB interface.
37  *
38  * Handling a protocol like QMI is out of the scope for any driver.
39  * It is exported as a character device using the cdc-wdm driver as
40  * a subdriver, enabling userspace applications ("modem managers") to
41  * handle it.
42  *
43  * These devices may alternatively/additionally be configured using AT
44  * commands on a serial interface
45  */
46 
47 /* driver specific data */
48 struct qmi_wwan_state {
49 	struct usb_driver *subdriver;
50 	atomic_t pmcount;
51 	unsigned long unused;
52 	struct usb_interface *control;
53 	struct usb_interface *data;
54 };
55 
56 /* default ethernet address used by the modem */
57 static const u8 default_modem_addr[ETH_ALEN] = {0x02, 0x50, 0xf3};
58 
59 /* Make up an ethernet header if the packet doesn't have one.
60  *
61  * A firmware bug common among several devices cause them to send raw
62  * IP packets under some circumstances.  There is no way for the
63  * driver/host to know when this will happen.  And even when the bug
64  * hits, some packets will still arrive with an intact header.
65  *
66  * The supported devices are only capably of sending IPv4, IPv6 and
67  * ARP packets on a point-to-point link. Any packet with an ethernet
68  * header will have either our address or a broadcast/multicast
69  * address as destination.  ARP packets will always have a header.
70  *
71  * This means that this function will reliably add the appropriate
72  * header iff necessary, provided our hardware address does not start
73  * with 4 or 6.
74  *
75  * Another common firmware bug results in all packets being addressed
76  * to 00:a0:c6:00:00:00 despite the host address being different.
77  * This function will also fixup such packets.
78  */
79 static int qmi_wwan_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
80 {
81 	__be16 proto;
82 
83 	/* usbnet rx_complete guarantees that skb->len is at least
84 	 * hard_header_len, so we can inspect the dest address without
85 	 * checking skb->len
86 	 */
87 	switch (skb->data[0] & 0xf0) {
88 	case 0x40:
89 		proto = htons(ETH_P_IP);
90 		break;
91 	case 0x60:
92 		proto = htons(ETH_P_IPV6);
93 		break;
94 	case 0x00:
95 		if (is_multicast_ether_addr(skb->data))
96 			return 1;
97 		/* possibly bogus destination - rewrite just in case */
98 		skb_reset_mac_header(skb);
99 		goto fix_dest;
100 	default:
101 		/* pass along other packets without modifications */
102 		return 1;
103 	}
104 	if (skb_headroom(skb) < ETH_HLEN)
105 		return 0;
106 	skb_push(skb, ETH_HLEN);
107 	skb_reset_mac_header(skb);
108 	eth_hdr(skb)->h_proto = proto;
109 	memset(eth_hdr(skb)->h_source, 0, ETH_ALEN);
110 fix_dest:
111 	memcpy(eth_hdr(skb)->h_dest, dev->net->dev_addr, ETH_ALEN);
112 	return 1;
113 }
114 
115 /* very simplistic detection of IPv4 or IPv6 headers */
116 static bool possibly_iphdr(const char *data)
117 {
118 	return (data[0] & 0xd0) == 0x40;
119 }
120 
121 /* disallow addresses which may be confused with IP headers */
122 static int qmi_wwan_mac_addr(struct net_device *dev, void *p)
123 {
124 	int ret;
125 	struct sockaddr *addr = p;
126 
127 	ret = eth_prepare_mac_addr_change(dev, p);
128 	if (ret < 0)
129 		return ret;
130 	if (possibly_iphdr(addr->sa_data))
131 		return -EADDRNOTAVAIL;
132 	eth_commit_mac_addr_change(dev, p);
133 	return 0;
134 }
135 
136 static const struct net_device_ops qmi_wwan_netdev_ops = {
137 	.ndo_open		= usbnet_open,
138 	.ndo_stop		= usbnet_stop,
139 	.ndo_start_xmit		= usbnet_start_xmit,
140 	.ndo_tx_timeout		= usbnet_tx_timeout,
141 	.ndo_change_mtu		= usbnet_change_mtu,
142 	.ndo_set_mac_address	= qmi_wwan_mac_addr,
143 	.ndo_validate_addr	= eth_validate_addr,
144 };
145 
146 /* using a counter to merge subdriver requests with our own into a
147  * combined state
148  */
149 static int qmi_wwan_manage_power(struct usbnet *dev, int on)
150 {
151 	struct qmi_wwan_state *info = (void *)&dev->data;
152 	int rv;
153 
154 	dev_dbg(&dev->intf->dev, "%s() pmcount=%d, on=%d\n", __func__,
155 		atomic_read(&info->pmcount), on);
156 
157 	if ((on && atomic_add_return(1, &info->pmcount) == 1) ||
158 	    (!on && atomic_dec_and_test(&info->pmcount))) {
159 		/* need autopm_get/put here to ensure the usbcore sees
160 		 * the new value
161 		 */
162 		rv = usb_autopm_get_interface(dev->intf);
163 		dev->intf->needs_remote_wakeup = on;
164 		if (!rv)
165 			usb_autopm_put_interface(dev->intf);
166 	}
167 	return 0;
168 }
169 
170 static int qmi_wwan_cdc_wdm_manage_power(struct usb_interface *intf, int on)
171 {
172 	struct usbnet *dev = usb_get_intfdata(intf);
173 
174 	/* can be called while disconnecting */
175 	if (!dev)
176 		return 0;
177 	return qmi_wwan_manage_power(dev, on);
178 }
179 
180 /* collect all three endpoints and register subdriver */
181 static int qmi_wwan_register_subdriver(struct usbnet *dev)
182 {
183 	int rv;
184 	struct usb_driver *subdriver = NULL;
185 	struct qmi_wwan_state *info = (void *)&dev->data;
186 
187 	/* collect bulk endpoints */
188 	rv = usbnet_get_endpoints(dev, info->data);
189 	if (rv < 0)
190 		goto err;
191 
192 	/* update status endpoint if separate control interface */
193 	if (info->control != info->data)
194 		dev->status = &info->control->cur_altsetting->endpoint[0];
195 
196 	/* require interrupt endpoint for subdriver */
197 	if (!dev->status) {
198 		rv = -EINVAL;
199 		goto err;
200 	}
201 
202 	/* for subdriver power management */
203 	atomic_set(&info->pmcount, 0);
204 
205 	/* register subdriver */
206 	subdriver = usb_cdc_wdm_register(info->control, &dev->status->desc,
207 					 4096, &qmi_wwan_cdc_wdm_manage_power);
208 	if (IS_ERR(subdriver)) {
209 		dev_err(&info->control->dev, "subdriver registration failed\n");
210 		rv = PTR_ERR(subdriver);
211 		goto err;
212 	}
213 
214 	/* prevent usbnet from using status endpoint */
215 	dev->status = NULL;
216 
217 	/* save subdriver struct for suspend/resume wrappers */
218 	info->subdriver = subdriver;
219 
220 err:
221 	return rv;
222 }
223 
224 static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
225 {
226 	int status = -1;
227 	u8 *buf = intf->cur_altsetting->extra;
228 	int len = intf->cur_altsetting->extralen;
229 	struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc;
230 	struct usb_cdc_union_desc *cdc_union = NULL;
231 	struct usb_cdc_ether_desc *cdc_ether = NULL;
232 	u32 found = 0;
233 	struct usb_driver *driver = driver_of(intf);
234 	struct qmi_wwan_state *info = (void *)&dev->data;
235 
236 	BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) <
237 		      sizeof(struct qmi_wwan_state)));
238 
239 	/* set up initial state */
240 	info->control = intf;
241 	info->data = intf;
242 
243 	/* and a number of CDC descriptors */
244 	while (len > 3) {
245 		struct usb_descriptor_header *h = (void *)buf;
246 
247 		/* ignore any misplaced descriptors */
248 		if (h->bDescriptorType != USB_DT_CS_INTERFACE)
249 			goto next_desc;
250 
251 		/* buf[2] is CDC descriptor subtype */
252 		switch (buf[2]) {
253 		case USB_CDC_HEADER_TYPE:
254 			if (found & 1 << USB_CDC_HEADER_TYPE) {
255 				dev_dbg(&intf->dev, "extra CDC header\n");
256 				goto err;
257 			}
258 			if (h->bLength != sizeof(struct usb_cdc_header_desc)) {
259 				dev_dbg(&intf->dev, "CDC header len %u\n",
260 					h->bLength);
261 				goto err;
262 			}
263 			break;
264 		case USB_CDC_UNION_TYPE:
265 			if (found & 1 << USB_CDC_UNION_TYPE) {
266 				dev_dbg(&intf->dev, "extra CDC union\n");
267 				goto err;
268 			}
269 			if (h->bLength != sizeof(struct usb_cdc_union_desc)) {
270 				dev_dbg(&intf->dev, "CDC union len %u\n",
271 					h->bLength);
272 				goto err;
273 			}
274 			cdc_union = (struct usb_cdc_union_desc *)buf;
275 			break;
276 		case USB_CDC_ETHERNET_TYPE:
277 			if (found & 1 << USB_CDC_ETHERNET_TYPE) {
278 				dev_dbg(&intf->dev, "extra CDC ether\n");
279 				goto err;
280 			}
281 			if (h->bLength != sizeof(struct usb_cdc_ether_desc)) {
282 				dev_dbg(&intf->dev, "CDC ether len %u\n",
283 					h->bLength);
284 				goto err;
285 			}
286 			cdc_ether = (struct usb_cdc_ether_desc *)buf;
287 			break;
288 		}
289 
290 		/* Remember which CDC functional descriptors we've seen.  Works
291 		 * for all types we care about, of which USB_CDC_ETHERNET_TYPE
292 		 * (0x0f) is the highest numbered
293 		 */
294 		if (buf[2] < 32)
295 			found |= 1 << buf[2];
296 
297 next_desc:
298 		len -= h->bLength;
299 		buf += h->bLength;
300 	}
301 
302 	/* Use separate control and data interfaces if we found a CDC Union */
303 	if (cdc_union) {
304 		info->data = usb_ifnum_to_if(dev->udev,
305 					     cdc_union->bSlaveInterface0);
306 		if (desc->bInterfaceNumber != cdc_union->bMasterInterface0 ||
307 		    !info->data) {
308 			dev_err(&intf->dev,
309 				"bogus CDC Union: master=%u, slave=%u\n",
310 				cdc_union->bMasterInterface0,
311 				cdc_union->bSlaveInterface0);
312 			goto err;
313 		}
314 	}
315 
316 	/* errors aren't fatal - we can live with the dynamic address */
317 	if (cdc_ether) {
318 		dev->hard_mtu = le16_to_cpu(cdc_ether->wMaxSegmentSize);
319 		usbnet_get_ethernet_addr(dev, cdc_ether->iMACAddress);
320 	}
321 
322 	/* claim data interface and set it up */
323 	if (info->control != info->data) {
324 		status = usb_driver_claim_interface(driver, info->data, dev);
325 		if (status < 0)
326 			goto err;
327 	}
328 
329 	status = qmi_wwan_register_subdriver(dev);
330 	if (status < 0 && info->control != info->data) {
331 		usb_set_intfdata(info->data, NULL);
332 		usb_driver_release_interface(driver, info->data);
333 	}
334 
335 	/* Never use the same address on both ends of the link, even
336 	 * if the buggy firmware told us to.
337 	 */
338 	if (ether_addr_equal(dev->net->dev_addr, default_modem_addr))
339 		eth_hw_addr_random(dev->net);
340 
341 	/* make MAC addr easily distinguishable from an IP header */
342 	if (possibly_iphdr(dev->net->dev_addr)) {
343 		dev->net->dev_addr[0] |= 0x02;	/* set local assignment bit */
344 		dev->net->dev_addr[0] &= 0xbf;	/* clear "IP" bit */
345 	}
346 	dev->net->netdev_ops = &qmi_wwan_netdev_ops;
347 err:
348 	return status;
349 }
350 
351 static void qmi_wwan_unbind(struct usbnet *dev, struct usb_interface *intf)
352 {
353 	struct qmi_wwan_state *info = (void *)&dev->data;
354 	struct usb_driver *driver = driver_of(intf);
355 	struct usb_interface *other;
356 
357 	if (info->subdriver && info->subdriver->disconnect)
358 		info->subdriver->disconnect(info->control);
359 
360 	/* allow user to unbind using either control or data */
361 	if (intf == info->control)
362 		other = info->data;
363 	else
364 		other = info->control;
365 
366 	/* only if not shared */
367 	if (other && intf != other) {
368 		usb_set_intfdata(other, NULL);
369 		usb_driver_release_interface(driver, other);
370 	}
371 
372 	info->subdriver = NULL;
373 	info->data = NULL;
374 	info->control = NULL;
375 }
376 
377 /* suspend/resume wrappers calling both usbnet and the cdc-wdm
378  * subdriver if present.
379  *
380  * NOTE: cdc-wdm also supports pre/post_reset, but we cannot provide
381  * wrappers for those without adding usbnet reset support first.
382  */
383 static int qmi_wwan_suspend(struct usb_interface *intf, pm_message_t message)
384 {
385 	struct usbnet *dev = usb_get_intfdata(intf);
386 	struct qmi_wwan_state *info = (void *)&dev->data;
387 	int ret;
388 
389 	/* Both usbnet_suspend() and subdriver->suspend() MUST return 0
390 	 * in system sleep context, otherwise, the resume callback has
391 	 * to recover device from previous suspend failure.
392 	 */
393 	ret = usbnet_suspend(intf, message);
394 	if (ret < 0)
395 		goto err;
396 
397 	if (intf == info->control && info->subdriver &&
398 	    info->subdriver->suspend)
399 		ret = info->subdriver->suspend(intf, message);
400 	if (ret < 0)
401 		usbnet_resume(intf);
402 err:
403 	return ret;
404 }
405 
406 static int qmi_wwan_resume(struct usb_interface *intf)
407 {
408 	struct usbnet *dev = usb_get_intfdata(intf);
409 	struct qmi_wwan_state *info = (void *)&dev->data;
410 	int ret = 0;
411 	bool callsub = (intf == info->control && info->subdriver &&
412 			info->subdriver->resume);
413 
414 	if (callsub)
415 		ret = info->subdriver->resume(intf);
416 	if (ret < 0)
417 		goto err;
418 	ret = usbnet_resume(intf);
419 	if (ret < 0 && callsub)
420 		info->subdriver->suspend(intf, PMSG_SUSPEND);
421 err:
422 	return ret;
423 }
424 
425 static const struct driver_info	qmi_wwan_info = {
426 	.description	= "WWAN/QMI device",
427 	.flags		= FLAG_WWAN,
428 	.bind		= qmi_wwan_bind,
429 	.unbind		= qmi_wwan_unbind,
430 	.manage_power	= qmi_wwan_manage_power,
431 	.rx_fixup       = qmi_wwan_rx_fixup,
432 };
433 
434 #define HUAWEI_VENDOR_ID	0x12D1
435 
436 /* map QMI/wwan function by a fixed interface number */
437 #define QMI_FIXED_INTF(vend, prod, num) \
438 	USB_DEVICE_INTERFACE_NUMBER(vend, prod, num), \
439 	.driver_info = (unsigned long)&qmi_wwan_info
440 
441 /* Gobi 1000 QMI/wwan interface number is 3 according to qcserial */
442 #define QMI_GOBI1K_DEVICE(vend, prod) \
443 	QMI_FIXED_INTF(vend, prod, 3)
444 
445 /* Gobi 2000/3000 QMI/wwan interface number is 0 according to qcserial */
446 #define QMI_GOBI_DEVICE(vend, prod) \
447 	QMI_FIXED_INTF(vend, prod, 0)
448 
449 static const struct usb_device_id products[] = {
450 	/* 1. CDC ECM like devices match on the control interface */
451 	{	/* Huawei E392, E398 and possibly others sharing both device id and more... */
452 		USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 9),
453 		.driver_info        = (unsigned long)&qmi_wwan_info,
454 	},
455 	{	/* Vodafone/Huawei K5005 (12d1:14c8) and similar modems */
456 		USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 57),
457 		.driver_info        = (unsigned long)&qmi_wwan_info,
458 	},
459 	{	/* HUAWEI_INTERFACE_NDIS_CONTROL_QUALCOMM */
460 		USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 0x01, 0x69),
461 		.driver_info        = (unsigned long)&qmi_wwan_info,
462 	},
463 
464 	/* 2. Combined interface devices matching on class+protocol */
465 	{	/* Huawei E367 and possibly others in "Windows mode" */
466 		USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 7),
467 		.driver_info        = (unsigned long)&qmi_wwan_info,
468 	},
469 	{	/* Huawei E392, E398 and possibly others in "Windows mode" */
470 		USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 17),
471 		.driver_info        = (unsigned long)&qmi_wwan_info,
472 	},
473 	{	/* HUAWEI_NDIS_SINGLE_INTERFACE_VDF */
474 		USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 0x01, 0x37),
475 		.driver_info        = (unsigned long)&qmi_wwan_info,
476 	},
477 	{	/* HUAWEI_INTERFACE_NDIS_HW_QUALCOMM */
478 		USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 0x01, 0x67),
479 		.driver_info        = (unsigned long)&qmi_wwan_info,
480 	},
481 	{	/* Pantech UML290, P4200 and more */
482 		USB_VENDOR_AND_INTERFACE_INFO(0x106c, USB_CLASS_VENDOR_SPEC, 0xf0, 0xff),
483 		.driver_info        = (unsigned long)&qmi_wwan_info,
484 	},
485 	{	/* Pantech UML290 - newer firmware */
486 		USB_VENDOR_AND_INTERFACE_INFO(0x106c, USB_CLASS_VENDOR_SPEC, 0xf1, 0xff),
487 		.driver_info        = (unsigned long)&qmi_wwan_info,
488 	},
489 	{	/* Novatel USB551L and MC551 */
490 		USB_DEVICE_AND_INTERFACE_INFO(0x1410, 0xb001,
491 		                              USB_CLASS_COMM,
492 		                              USB_CDC_SUBCLASS_ETHERNET,
493 		                              USB_CDC_PROTO_NONE),
494 		.driver_info        = (unsigned long)&qmi_wwan_info,
495 	},
496 	{	/* Novatel E362 */
497 		USB_DEVICE_AND_INTERFACE_INFO(0x1410, 0x9010,
498 		                              USB_CLASS_COMM,
499 		                              USB_CDC_SUBCLASS_ETHERNET,
500 		                              USB_CDC_PROTO_NONE),
501 		.driver_info        = (unsigned long)&qmi_wwan_info,
502 	},
503 	{	/* Dell Wireless 5800 (Novatel E362) */
504 		USB_DEVICE_AND_INTERFACE_INFO(0x413C, 0x8195,
505 					      USB_CLASS_COMM,
506 					      USB_CDC_SUBCLASS_ETHERNET,
507 					      USB_CDC_PROTO_NONE),
508 		.driver_info        = (unsigned long)&qmi_wwan_info,
509 	},
510 	{	/* Dell Wireless 5800 V2 (Novatel E362) */
511 		USB_DEVICE_AND_INTERFACE_INFO(0x413C, 0x8196,
512 					      USB_CLASS_COMM,
513 					      USB_CDC_SUBCLASS_ETHERNET,
514 					      USB_CDC_PROTO_NONE),
515 		.driver_info        = (unsigned long)&qmi_wwan_info,
516 	},
517 	{	/* Dell Wireless 5804 (Novatel E371) */
518 		USB_DEVICE_AND_INTERFACE_INFO(0x413C, 0x819b,
519 					      USB_CLASS_COMM,
520 					      USB_CDC_SUBCLASS_ETHERNET,
521 					      USB_CDC_PROTO_NONE),
522 		.driver_info        = (unsigned long)&qmi_wwan_info,
523 	},
524 	{	/* ADU960S */
525 		USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a,
526 					      USB_CLASS_COMM,
527 					      USB_CDC_SUBCLASS_ETHERNET,
528 					      USB_CDC_PROTO_NONE),
529 		.driver_info        = (unsigned long)&qmi_wwan_info,
530 	},
531 
532 	/* 3. Combined interface devices matching on interface number */
533 	{QMI_FIXED_INTF(0x0408, 0xea42, 4)},	/* Yota / Megafon M100-1 */
534 	{QMI_FIXED_INTF(0x05c6, 0x7000, 0)},
535 	{QMI_FIXED_INTF(0x05c6, 0x7001, 1)},
536 	{QMI_FIXED_INTF(0x05c6, 0x7002, 1)},
537 	{QMI_FIXED_INTF(0x05c6, 0x7101, 1)},
538 	{QMI_FIXED_INTF(0x05c6, 0x7101, 2)},
539 	{QMI_FIXED_INTF(0x05c6, 0x7101, 3)},
540 	{QMI_FIXED_INTF(0x05c6, 0x7102, 1)},
541 	{QMI_FIXED_INTF(0x05c6, 0x7102, 2)},
542 	{QMI_FIXED_INTF(0x05c6, 0x7102, 3)},
543 	{QMI_FIXED_INTF(0x05c6, 0x8000, 7)},
544 	{QMI_FIXED_INTF(0x05c6, 0x8001, 6)},
545 	{QMI_FIXED_INTF(0x05c6, 0x9000, 4)},
546 	{QMI_FIXED_INTF(0x05c6, 0x9003, 4)},
547 	{QMI_FIXED_INTF(0x05c6, 0x9005, 2)},
548 	{QMI_FIXED_INTF(0x05c6, 0x900a, 4)},
549 	{QMI_FIXED_INTF(0x05c6, 0x900b, 2)},
550 	{QMI_FIXED_INTF(0x05c6, 0x900c, 4)},
551 	{QMI_FIXED_INTF(0x05c6, 0x900c, 5)},
552 	{QMI_FIXED_INTF(0x05c6, 0x900c, 6)},
553 	{QMI_FIXED_INTF(0x05c6, 0x900d, 5)},
554 	{QMI_FIXED_INTF(0x05c6, 0x900f, 3)},
555 	{QMI_FIXED_INTF(0x05c6, 0x900f, 4)},
556 	{QMI_FIXED_INTF(0x05c6, 0x900f, 5)},
557 	{QMI_FIXED_INTF(0x05c6, 0x9010, 4)},
558 	{QMI_FIXED_INTF(0x05c6, 0x9010, 5)},
559 	{QMI_FIXED_INTF(0x05c6, 0x9011, 3)},
560 	{QMI_FIXED_INTF(0x05c6, 0x9011, 4)},
561 	{QMI_FIXED_INTF(0x05c6, 0x9021, 1)},
562 	{QMI_FIXED_INTF(0x05c6, 0x9022, 2)},
563 	{QMI_FIXED_INTF(0x05c6, 0x9025, 4)},	/* Alcatel-sbell ASB TL131 TDD LTE  (China Mobile) */
564 	{QMI_FIXED_INTF(0x05c6, 0x9026, 3)},
565 	{QMI_FIXED_INTF(0x05c6, 0x902e, 5)},
566 	{QMI_FIXED_INTF(0x05c6, 0x9031, 5)},
567 	{QMI_FIXED_INTF(0x05c6, 0x9032, 4)},
568 	{QMI_FIXED_INTF(0x05c6, 0x9033, 3)},
569 	{QMI_FIXED_INTF(0x05c6, 0x9033, 4)},
570 	{QMI_FIXED_INTF(0x05c6, 0x9033, 5)},
571 	{QMI_FIXED_INTF(0x05c6, 0x9033, 6)},
572 	{QMI_FIXED_INTF(0x05c6, 0x9034, 3)},
573 	{QMI_FIXED_INTF(0x05c6, 0x9034, 4)},
574 	{QMI_FIXED_INTF(0x05c6, 0x9034, 5)},
575 	{QMI_FIXED_INTF(0x05c6, 0x9034, 6)},
576 	{QMI_FIXED_INTF(0x05c6, 0x9034, 7)},
577 	{QMI_FIXED_INTF(0x05c6, 0x9035, 4)},
578 	{QMI_FIXED_INTF(0x05c6, 0x9036, 3)},
579 	{QMI_FIXED_INTF(0x05c6, 0x9037, 5)},
580 	{QMI_FIXED_INTF(0x05c6, 0x9038, 4)},
581 	{QMI_FIXED_INTF(0x05c6, 0x903b, 7)},
582 	{QMI_FIXED_INTF(0x05c6, 0x903c, 6)},
583 	{QMI_FIXED_INTF(0x05c6, 0x903d, 6)},
584 	{QMI_FIXED_INTF(0x05c6, 0x903e, 5)},
585 	{QMI_FIXED_INTF(0x05c6, 0x9043, 3)},
586 	{QMI_FIXED_INTF(0x05c6, 0x9046, 3)},
587 	{QMI_FIXED_INTF(0x05c6, 0x9046, 4)},
588 	{QMI_FIXED_INTF(0x05c6, 0x9046, 5)},
589 	{QMI_FIXED_INTF(0x05c6, 0x9047, 2)},
590 	{QMI_FIXED_INTF(0x05c6, 0x9047, 3)},
591 	{QMI_FIXED_INTF(0x05c6, 0x9047, 4)},
592 	{QMI_FIXED_INTF(0x05c6, 0x9048, 4)},
593 	{QMI_FIXED_INTF(0x05c6, 0x9048, 5)},
594 	{QMI_FIXED_INTF(0x05c6, 0x9048, 6)},
595 	{QMI_FIXED_INTF(0x05c6, 0x9048, 7)},
596 	{QMI_FIXED_INTF(0x05c6, 0x9048, 8)},
597 	{QMI_FIXED_INTF(0x05c6, 0x904c, 5)},
598 	{QMI_FIXED_INTF(0x05c6, 0x904c, 6)},
599 	{QMI_FIXED_INTF(0x05c6, 0x904c, 7)},
600 	{QMI_FIXED_INTF(0x05c6, 0x904c, 8)},
601 	{QMI_FIXED_INTF(0x05c6, 0x9050, 3)},
602 	{QMI_FIXED_INTF(0x05c6, 0x9052, 4)},
603 	{QMI_FIXED_INTF(0x05c6, 0x9053, 6)},
604 	{QMI_FIXED_INTF(0x05c6, 0x9053, 7)},
605 	{QMI_FIXED_INTF(0x05c6, 0x9054, 5)},
606 	{QMI_FIXED_INTF(0x05c6, 0x9054, 6)},
607 	{QMI_FIXED_INTF(0x05c6, 0x9055, 3)},
608 	{QMI_FIXED_INTF(0x05c6, 0x9055, 4)},
609 	{QMI_FIXED_INTF(0x05c6, 0x9055, 5)},
610 	{QMI_FIXED_INTF(0x05c6, 0x9055, 6)},
611 	{QMI_FIXED_INTF(0x05c6, 0x9055, 7)},
612 	{QMI_FIXED_INTF(0x05c6, 0x9056, 3)},
613 	{QMI_FIXED_INTF(0x05c6, 0x9062, 2)},
614 	{QMI_FIXED_INTF(0x05c6, 0x9062, 3)},
615 	{QMI_FIXED_INTF(0x05c6, 0x9062, 4)},
616 	{QMI_FIXED_INTF(0x05c6, 0x9062, 5)},
617 	{QMI_FIXED_INTF(0x05c6, 0x9062, 6)},
618 	{QMI_FIXED_INTF(0x05c6, 0x9062, 7)},
619 	{QMI_FIXED_INTF(0x05c6, 0x9062, 8)},
620 	{QMI_FIXED_INTF(0x05c6, 0x9062, 9)},
621 	{QMI_FIXED_INTF(0x05c6, 0x9064, 3)},
622 	{QMI_FIXED_INTF(0x05c6, 0x9065, 6)},
623 	{QMI_FIXED_INTF(0x05c6, 0x9065, 7)},
624 	{QMI_FIXED_INTF(0x05c6, 0x9066, 5)},
625 	{QMI_FIXED_INTF(0x05c6, 0x9066, 6)},
626 	{QMI_FIXED_INTF(0x05c6, 0x9067, 1)},
627 	{QMI_FIXED_INTF(0x05c6, 0x9068, 2)},
628 	{QMI_FIXED_INTF(0x05c6, 0x9068, 3)},
629 	{QMI_FIXED_INTF(0x05c6, 0x9068, 4)},
630 	{QMI_FIXED_INTF(0x05c6, 0x9068, 5)},
631 	{QMI_FIXED_INTF(0x05c6, 0x9068, 6)},
632 	{QMI_FIXED_INTF(0x05c6, 0x9068, 7)},
633 	{QMI_FIXED_INTF(0x05c6, 0x9069, 5)},
634 	{QMI_FIXED_INTF(0x05c6, 0x9069, 6)},
635 	{QMI_FIXED_INTF(0x05c6, 0x9069, 7)},
636 	{QMI_FIXED_INTF(0x05c6, 0x9069, 8)},
637 	{QMI_FIXED_INTF(0x05c6, 0x9070, 4)},
638 	{QMI_FIXED_INTF(0x05c6, 0x9070, 5)},
639 	{QMI_FIXED_INTF(0x05c6, 0x9075, 5)},
640 	{QMI_FIXED_INTF(0x05c6, 0x9076, 4)},
641 	{QMI_FIXED_INTF(0x05c6, 0x9076, 5)},
642 	{QMI_FIXED_INTF(0x05c6, 0x9076, 6)},
643 	{QMI_FIXED_INTF(0x05c6, 0x9076, 7)},
644 	{QMI_FIXED_INTF(0x05c6, 0x9076, 8)},
645 	{QMI_FIXED_INTF(0x05c6, 0x9077, 3)},
646 	{QMI_FIXED_INTF(0x05c6, 0x9077, 4)},
647 	{QMI_FIXED_INTF(0x05c6, 0x9077, 5)},
648 	{QMI_FIXED_INTF(0x05c6, 0x9077, 6)},
649 	{QMI_FIXED_INTF(0x05c6, 0x9078, 3)},
650 	{QMI_FIXED_INTF(0x05c6, 0x9079, 4)},
651 	{QMI_FIXED_INTF(0x05c6, 0x9079, 5)},
652 	{QMI_FIXED_INTF(0x05c6, 0x9079, 6)},
653 	{QMI_FIXED_INTF(0x05c6, 0x9079, 7)},
654 	{QMI_FIXED_INTF(0x05c6, 0x9079, 8)},
655 	{QMI_FIXED_INTF(0x05c6, 0x9080, 5)},
656 	{QMI_FIXED_INTF(0x05c6, 0x9080, 6)},
657 	{QMI_FIXED_INTF(0x05c6, 0x9080, 7)},
658 	{QMI_FIXED_INTF(0x05c6, 0x9080, 8)},
659 	{QMI_FIXED_INTF(0x05c6, 0x9083, 3)},
660 	{QMI_FIXED_INTF(0x05c6, 0x9084, 4)},
661 	{QMI_FIXED_INTF(0x05c6, 0x920d, 0)},
662 	{QMI_FIXED_INTF(0x05c6, 0x920d, 5)},
663 	{QMI_FIXED_INTF(0x12d1, 0x140c, 1)},	/* Huawei E173 */
664 	{QMI_FIXED_INTF(0x12d1, 0x14ac, 1)},	/* Huawei E1820 */
665 	{QMI_FIXED_INTF(0x19d2, 0x0002, 1)},
666 	{QMI_FIXED_INTF(0x19d2, 0x0012, 1)},
667 	{QMI_FIXED_INTF(0x19d2, 0x0017, 3)},
668 	{QMI_FIXED_INTF(0x19d2, 0x0019, 3)},	/* ONDA MT689DC */
669 	{QMI_FIXED_INTF(0x19d2, 0x0021, 4)},
670 	{QMI_FIXED_INTF(0x19d2, 0x0025, 1)},
671 	{QMI_FIXED_INTF(0x19d2, 0x0031, 4)},
672 	{QMI_FIXED_INTF(0x19d2, 0x0042, 4)},
673 	{QMI_FIXED_INTF(0x19d2, 0x0049, 5)},
674 	{QMI_FIXED_INTF(0x19d2, 0x0052, 4)},
675 	{QMI_FIXED_INTF(0x19d2, 0x0055, 1)},	/* ZTE (Vodafone) K3520-Z */
676 	{QMI_FIXED_INTF(0x19d2, 0x0058, 4)},
677 	{QMI_FIXED_INTF(0x19d2, 0x0063, 4)},	/* ZTE (Vodafone) K3565-Z */
678 	{QMI_FIXED_INTF(0x19d2, 0x0104, 4)},	/* ZTE (Vodafone) K4505-Z */
679 	{QMI_FIXED_INTF(0x19d2, 0x0113, 5)},
680 	{QMI_FIXED_INTF(0x19d2, 0x0118, 5)},
681 	{QMI_FIXED_INTF(0x19d2, 0x0121, 5)},
682 	{QMI_FIXED_INTF(0x19d2, 0x0123, 4)},
683 	{QMI_FIXED_INTF(0x19d2, 0x0124, 5)},
684 	{QMI_FIXED_INTF(0x19d2, 0x0125, 6)},
685 	{QMI_FIXED_INTF(0x19d2, 0x0126, 5)},
686 	{QMI_FIXED_INTF(0x19d2, 0x0130, 1)},
687 	{QMI_FIXED_INTF(0x19d2, 0x0133, 3)},
688 	{QMI_FIXED_INTF(0x19d2, 0x0141, 5)},
689 	{QMI_FIXED_INTF(0x19d2, 0x0157, 5)},	/* ZTE MF683 */
690 	{QMI_FIXED_INTF(0x19d2, 0x0158, 3)},
691 	{QMI_FIXED_INTF(0x19d2, 0x0167, 4)},	/* ZTE MF820D */
692 	{QMI_FIXED_INTF(0x19d2, 0x0168, 4)},
693 	{QMI_FIXED_INTF(0x19d2, 0x0176, 3)},
694 	{QMI_FIXED_INTF(0x19d2, 0x0178, 3)},
695 	{QMI_FIXED_INTF(0x19d2, 0x0191, 4)},	/* ZTE EuFi890 */
696 	{QMI_FIXED_INTF(0x19d2, 0x0199, 1)},	/* ZTE MF820S */
697 	{QMI_FIXED_INTF(0x19d2, 0x0200, 1)},
698 	{QMI_FIXED_INTF(0x19d2, 0x0257, 3)},	/* ZTE MF821 */
699 	{QMI_FIXED_INTF(0x19d2, 0x0265, 4)},	/* ONDA MT8205 4G LTE */
700 	{QMI_FIXED_INTF(0x19d2, 0x0284, 4)},	/* ZTE MF880 */
701 	{QMI_FIXED_INTF(0x19d2, 0x0326, 4)},	/* ZTE MF821D */
702 	{QMI_FIXED_INTF(0x19d2, 0x0412, 4)},	/* Telewell TW-LTE 4G */
703 	{QMI_FIXED_INTF(0x19d2, 0x1008, 4)},	/* ZTE (Vodafone) K3570-Z */
704 	{QMI_FIXED_INTF(0x19d2, 0x1010, 4)},	/* ZTE (Vodafone) K3571-Z */
705 	{QMI_FIXED_INTF(0x19d2, 0x1012, 4)},
706 	{QMI_FIXED_INTF(0x19d2, 0x1018, 3)},	/* ZTE (Vodafone) K5006-Z */
707 	{QMI_FIXED_INTF(0x19d2, 0x1021, 2)},
708 	{QMI_FIXED_INTF(0x19d2, 0x1245, 4)},
709 	{QMI_FIXED_INTF(0x19d2, 0x1247, 4)},
710 	{QMI_FIXED_INTF(0x19d2, 0x1252, 4)},
711 	{QMI_FIXED_INTF(0x19d2, 0x1254, 4)},
712 	{QMI_FIXED_INTF(0x19d2, 0x1255, 3)},
713 	{QMI_FIXED_INTF(0x19d2, 0x1255, 4)},
714 	{QMI_FIXED_INTF(0x19d2, 0x1256, 4)},
715 	{QMI_FIXED_INTF(0x19d2, 0x1401, 2)},
716 	{QMI_FIXED_INTF(0x19d2, 0x1402, 2)},	/* ZTE MF60 */
717 	{QMI_FIXED_INTF(0x19d2, 0x1424, 2)},
718 	{QMI_FIXED_INTF(0x19d2, 0x1425, 2)},
719 	{QMI_FIXED_INTF(0x19d2, 0x1426, 2)},	/* ZTE MF91 */
720 	{QMI_FIXED_INTF(0x19d2, 0x2002, 4)},	/* ZTE (Vodafone) K3765-Z */
721 	{QMI_FIXED_INTF(0x0f3d, 0x68a2, 8)},    /* Sierra Wireless MC7700 */
722 	{QMI_FIXED_INTF(0x114f, 0x68a2, 8)},    /* Sierra Wireless MC7750 */
723 	{QMI_FIXED_INTF(0x1199, 0x68a2, 8)},	/* Sierra Wireless MC7710 in QMI mode */
724 	{QMI_FIXED_INTF(0x1199, 0x68a2, 19)},	/* Sierra Wireless MC7710 in QMI mode */
725 	{QMI_FIXED_INTF(0x1199, 0x901c, 8)},    /* Sierra Wireless EM7700 */
726 	{QMI_FIXED_INTF(0x1bbb, 0x011e, 4)},	/* Telekom Speedstick LTE II (Alcatel One Touch L100V LTE) */
727 	{QMI_FIXED_INTF(0x2357, 0x0201, 4)},	/* TP-LINK HSUPA Modem MA180 */
728 	{QMI_FIXED_INTF(0x2357, 0x9000, 4)},	/* TP-LINK MA260 */
729 	{QMI_FIXED_INTF(0x1bc7, 0x1200, 5)},	/* Telit LE920 */
730 	{QMI_FIXED_INTF(0x1bc7, 0x1201, 2)},	/* Telit LE920 */
731 	{QMI_FIXED_INTF(0x0b3c, 0xc005, 6)},    /* Olivetti Olicard 200 */
732 	{QMI_FIXED_INTF(0x1e2d, 0x0060, 4)},	/* Cinterion PLxx */
733 
734 	/* 4. Gobi 1000 devices */
735 	{QMI_GOBI1K_DEVICE(0x05c6, 0x9212)},	/* Acer Gobi Modem Device */
736 	{QMI_GOBI1K_DEVICE(0x03f0, 0x1f1d)},	/* HP un2400 Gobi Modem Device */
737 	{QMI_GOBI1K_DEVICE(0x04da, 0x250d)},	/* Panasonic Gobi Modem device */
738 	{QMI_GOBI1K_DEVICE(0x413c, 0x8172)},	/* Dell Gobi Modem device */
739 	{QMI_GOBI1K_DEVICE(0x1410, 0xa001)},	/* Novatel/Verizon USB-1000 */
740 	{QMI_GOBI1K_DEVICE(0x1410, 0xa002)},	/* Novatel Gobi Modem device */
741 	{QMI_GOBI1K_DEVICE(0x1410, 0xa003)},	/* Novatel Gobi Modem device */
742 	{QMI_GOBI1K_DEVICE(0x1410, 0xa004)},	/* Novatel Gobi Modem device */
743 	{QMI_GOBI1K_DEVICE(0x1410, 0xa005)},	/* Novatel Gobi Modem device */
744 	{QMI_GOBI1K_DEVICE(0x1410, 0xa006)},	/* Novatel Gobi Modem device */
745 	{QMI_GOBI1K_DEVICE(0x1410, 0xa007)},	/* Novatel Gobi Modem device */
746 	{QMI_GOBI1K_DEVICE(0x0b05, 0x1776)},	/* Asus Gobi Modem device */
747 	{QMI_GOBI1K_DEVICE(0x19d2, 0xfff3)},	/* ONDA Gobi Modem device */
748 	{QMI_GOBI1K_DEVICE(0x05c6, 0x9001)},	/* Generic Gobi Modem device */
749 	{QMI_GOBI1K_DEVICE(0x05c6, 0x9002)},	/* Generic Gobi Modem device */
750 	{QMI_GOBI1K_DEVICE(0x05c6, 0x9202)},	/* Generic Gobi Modem device */
751 	{QMI_GOBI1K_DEVICE(0x05c6, 0x9203)},	/* Generic Gobi Modem device */
752 	{QMI_GOBI1K_DEVICE(0x05c6, 0x9222)},	/* Generic Gobi Modem device */
753 	{QMI_GOBI1K_DEVICE(0x05c6, 0x9009)},	/* Generic Gobi Modem device */
754 
755 	/* 5. Gobi 2000 and 3000 devices */
756 	{QMI_GOBI_DEVICE(0x413c, 0x8186)},	/* Dell Gobi 2000 Modem device (N0218, VU936) */
757 	{QMI_GOBI_DEVICE(0x413c, 0x8194)},	/* Dell Gobi 3000 Composite */
758 	{QMI_GOBI_DEVICE(0x05c6, 0x920b)},	/* Generic Gobi 2000 Modem device */
759 	{QMI_GOBI_DEVICE(0x05c6, 0x9225)},	/* Sony Gobi 2000 Modem device (N0279, VU730) */
760 	{QMI_GOBI_DEVICE(0x05c6, 0x9245)},	/* Samsung Gobi 2000 Modem device (VL176) */
761 	{QMI_GOBI_DEVICE(0x03f0, 0x251d)},	/* HP Gobi 2000 Modem device (VP412) */
762 	{QMI_GOBI_DEVICE(0x05c6, 0x9215)},	/* Acer Gobi 2000 Modem device (VP413) */
763 	{QMI_GOBI_DEVICE(0x05c6, 0x9265)},	/* Asus Gobi 2000 Modem device (VR305) */
764 	{QMI_GOBI_DEVICE(0x05c6, 0x9235)},	/* Top Global Gobi 2000 Modem device (VR306) */
765 	{QMI_GOBI_DEVICE(0x05c6, 0x9275)},	/* iRex Technologies Gobi 2000 Modem device (VR307) */
766 	{QMI_GOBI_DEVICE(0x0af0, 0x8120)},	/* Option GTM681W */
767 	{QMI_GOBI_DEVICE(0x1199, 0x68a5)},	/* Sierra Wireless Modem */
768 	{QMI_GOBI_DEVICE(0x1199, 0x68a9)},	/* Sierra Wireless Modem */
769 	{QMI_GOBI_DEVICE(0x1199, 0x9001)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
770 	{QMI_GOBI_DEVICE(0x1199, 0x9002)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
771 	{QMI_GOBI_DEVICE(0x1199, 0x9003)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
772 	{QMI_GOBI_DEVICE(0x1199, 0x9004)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
773 	{QMI_GOBI_DEVICE(0x1199, 0x9005)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
774 	{QMI_GOBI_DEVICE(0x1199, 0x9006)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
775 	{QMI_GOBI_DEVICE(0x1199, 0x9007)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
776 	{QMI_GOBI_DEVICE(0x1199, 0x9008)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
777 	{QMI_GOBI_DEVICE(0x1199, 0x9009)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
778 	{QMI_GOBI_DEVICE(0x1199, 0x900a)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
779 	{QMI_GOBI_DEVICE(0x1199, 0x9011)},	/* Sierra Wireless Gobi 2000 Modem device (MC8305) */
780 	{QMI_GOBI_DEVICE(0x16d8, 0x8002)},	/* CMDTech Gobi 2000 Modem device (VU922) */
781 	{QMI_GOBI_DEVICE(0x05c6, 0x9205)},	/* Gobi 2000 Modem device */
782 	{QMI_GOBI_DEVICE(0x1199, 0x9013)},	/* Sierra Wireless Gobi 3000 Modem device (MC8355) */
783 	{QMI_GOBI_DEVICE(0x03f0, 0x371d)},	/* HP un2430 Mobile Broadband Module */
784 	{QMI_GOBI_DEVICE(0x1199, 0x9015)},	/* Sierra Wireless Gobi 3000 Modem device */
785 	{QMI_GOBI_DEVICE(0x1199, 0x9019)},	/* Sierra Wireless Gobi 3000 Modem device */
786 	{QMI_GOBI_DEVICE(0x1199, 0x901b)},	/* Sierra Wireless MC7770 */
787 	{QMI_GOBI_DEVICE(0x12d1, 0x14f1)},	/* Sony Gobi 3000 Composite */
788 	{QMI_GOBI_DEVICE(0x1410, 0xa021)},	/* Foxconn Gobi 3000 Modem device (Novatel E396) */
789 
790 	{ }					/* END */
791 };
792 MODULE_DEVICE_TABLE(usb, products);
793 
794 static int qmi_wwan_probe(struct usb_interface *intf,
795 			  const struct usb_device_id *prod)
796 {
797 	struct usb_device_id *id = (struct usb_device_id *)prod;
798 
799 	/* Workaround to enable dynamic IDs.  This disables usbnet
800 	 * blacklisting functionality.  Which, if required, can be
801 	 * reimplemented here by using a magic "blacklist" value
802 	 * instead of 0 in the static device id table
803 	 */
804 	if (!id->driver_info) {
805 		dev_dbg(&intf->dev, "setting defaults for dynamic device id\n");
806 		id->driver_info = (unsigned long)&qmi_wwan_info;
807 	}
808 
809 	return usbnet_probe(intf, id);
810 }
811 
812 static struct usb_driver qmi_wwan_driver = {
813 	.name		      = "qmi_wwan",
814 	.id_table	      = products,
815 	.probe		      = qmi_wwan_probe,
816 	.disconnect	      = usbnet_disconnect,
817 	.suspend	      = qmi_wwan_suspend,
818 	.resume		      =	qmi_wwan_resume,
819 	.reset_resume         = qmi_wwan_resume,
820 	.supports_autosuspend = 1,
821 	.disable_hub_initiated_lpm = 1,
822 };
823 
824 module_usb_driver(qmi_wwan_driver);
825 
826 MODULE_AUTHOR("Bjørn Mork <bjorn@mork.no>");
827 MODULE_DESCRIPTION("Qualcomm MSM Interface (QMI) WWAN driver");
828 MODULE_LICENSE("GPL");
829