xref: /linux/drivers/net/usb/qmi_wwan.c (revision 26b0d14106954ae46d2f4f7eec3481828a210f7d)
1 /*
2  * Copyright (c) 2012  Bjørn Mork <bjorn@mork.no>
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License
6  * version 2 as published by the Free Software Foundation.
7  */
8 
9 #include <linux/module.h>
10 #include <linux/netdevice.h>
11 #include <linux/ethtool.h>
12 #include <linux/mii.h>
13 #include <linux/usb.h>
14 #include <linux/usb/cdc.h>
15 #include <linux/usb/usbnet.h>
16 #include <linux/usb/cdc-wdm.h>
17 
18 /* The name of the CDC Device Management driver */
19 #define DM_DRIVER "cdc_wdm"
20 
21 /*
22  * This driver supports wwan (3G/LTE/?) devices using a vendor
23  * specific management protocol called Qualcomm MSM Interface (QMI) -
24  * in addition to the more common AT commands over serial interface
25  * management
26  *
27  * QMI is wrapped in CDC, using CDC encapsulated commands on the
28  * control ("master") interface of a two-interface CDC Union
29  * resembling standard CDC ECM.  The devices do not use the control
30  * interface for any other CDC messages.  Most likely because the
31  * management protocol is used in place of the standard CDC
32  * notifications NOTIFY_NETWORK_CONNECTION and NOTIFY_SPEED_CHANGE
33  *
34  * Handling a protocol like QMI is out of the scope for any driver.
35  * It can be exported as a character device using the cdc-wdm driver,
36  * which will enable userspace applications ("modem managers") to
37  * handle it.  This may be required to use the network interface
38  * provided by the driver.
39  *
40  * These devices may alternatively/additionally be configured using AT
41  * commands on any of the serial interfaces driven by the option driver
42  *
43  * This driver binds only to the data ("slave") interface to enable
44  * the cdc-wdm driver to bind to the control interface.  It still
45  * parses the CDC functional descriptors on the control interface to
46  *  a) verify that this is indeed a handled interface (CDC Union
47  *     header lists it as slave)
48  *  b) get MAC address and other ethernet config from the CDC Ethernet
49  *     header
50  *  c) enable user bind requests against the control interface, which
51  *     is the common way to bind to CDC Ethernet Control Model type
52  *     interfaces
53  *  d) provide a hint to the user about which interface is the
54  *     corresponding management interface
55  */
56 
57 static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
58 {
59 	int status = -1;
60 	struct usb_interface *control = NULL;
61 	u8 *buf = intf->cur_altsetting->extra;
62 	int len = intf->cur_altsetting->extralen;
63 	struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc;
64 	struct usb_cdc_union_desc *cdc_union = NULL;
65 	struct usb_cdc_ether_desc *cdc_ether = NULL;
66 	u32 required = 1 << USB_CDC_HEADER_TYPE | 1 << USB_CDC_UNION_TYPE;
67 	u32 found = 0;
68 	atomic_t *pmcount = (void *)&dev->data[1];
69 
70 	atomic_set(pmcount, 0);
71 
72 	/*
73 	 * assume a data interface has no additional descriptors and
74 	 * that the control and data interface are numbered
75 	 * consecutively - this holds for the Huawei device at least
76 	 */
77 	if (len == 0 && desc->bInterfaceNumber > 0) {
78 		control = usb_ifnum_to_if(dev->udev, desc->bInterfaceNumber - 1);
79 		if (!control)
80 			goto err;
81 
82 		buf = control->cur_altsetting->extra;
83 		len = control->cur_altsetting->extralen;
84 		dev_dbg(&intf->dev, "guessing \"control\" => %s, \"data\" => this\n",
85 			dev_name(&control->dev));
86 	}
87 
88 	while (len > 3) {
89 		struct usb_descriptor_header *h = (void *)buf;
90 
91 		/* ignore any misplaced descriptors */
92 		if (h->bDescriptorType != USB_DT_CS_INTERFACE)
93 			goto next_desc;
94 
95 		/* buf[2] is CDC descriptor subtype */
96 		switch (buf[2]) {
97 		case USB_CDC_HEADER_TYPE:
98 			if (found & 1 << USB_CDC_HEADER_TYPE) {
99 				dev_dbg(&intf->dev, "extra CDC header\n");
100 				goto err;
101 			}
102 			if (h->bLength != sizeof(struct usb_cdc_header_desc)) {
103 				dev_dbg(&intf->dev, "CDC header len %u\n", h->bLength);
104 				goto err;
105 			}
106 			break;
107 		case USB_CDC_UNION_TYPE:
108 			if (found & 1 << USB_CDC_UNION_TYPE) {
109 				dev_dbg(&intf->dev, "extra CDC union\n");
110 				goto err;
111 			}
112 			if (h->bLength != sizeof(struct usb_cdc_union_desc)) {
113 				dev_dbg(&intf->dev, "CDC union len %u\n", h->bLength);
114 				goto err;
115 			}
116 			cdc_union = (struct usb_cdc_union_desc *)buf;
117 			break;
118 		case USB_CDC_ETHERNET_TYPE:
119 			if (found & 1 << USB_CDC_ETHERNET_TYPE) {
120 				dev_dbg(&intf->dev, "extra CDC ether\n");
121 				goto err;
122 			}
123 			if (h->bLength != sizeof(struct usb_cdc_ether_desc)) {
124 				dev_dbg(&intf->dev, "CDC ether len %u\n",  h->bLength);
125 				goto err;
126 			}
127 			cdc_ether = (struct usb_cdc_ether_desc *)buf;
128 			break;
129 		}
130 
131 		/*
132 		 * Remember which CDC functional descriptors we've seen.  Works
133 		 * for all types we care about, of which USB_CDC_ETHERNET_TYPE
134 		 * (0x0f) is the highest numbered
135 		 */
136 		if (buf[2] < 32)
137 			found |= 1 << buf[2];
138 
139 next_desc:
140 		len -= h->bLength;
141 		buf += h->bLength;
142 	}
143 
144 	/* did we find all the required ones? */
145 	if ((found & required) != required) {
146 		dev_err(&intf->dev, "CDC functional descriptors missing\n");
147 		goto err;
148 	}
149 
150 	/* give the user a helpful hint if trying to bind to the wrong interface */
151 	if (cdc_union && desc->bInterfaceNumber == cdc_union->bMasterInterface0) {
152 		dev_err(&intf->dev, "leaving \"control\" interface for " DM_DRIVER " - try binding to %s instead!\n",
153 			dev_name(&usb_ifnum_to_if(dev->udev, cdc_union->bSlaveInterface0)->dev));
154 		goto err;
155 	}
156 
157 	/* errors aren't fatal - we can live with the dynamic address */
158 	if (cdc_ether) {
159 		dev->hard_mtu = le16_to_cpu(cdc_ether->wMaxSegmentSize);
160 		usbnet_get_ethernet_addr(dev, cdc_ether->iMACAddress);
161 	}
162 
163 	/* success! point the user to the management interface */
164 	if (control)
165 		dev_info(&intf->dev, "Use \"" DM_DRIVER "\" for QMI interface %s\n",
166 			dev_name(&control->dev));
167 
168 	/* XXX: add a sysfs symlink somewhere to help management applications find it? */
169 
170 	/* collect bulk endpoints now that we know intf == "data" interface */
171 	status = usbnet_get_endpoints(dev, intf);
172 
173 err:
174 	return status;
175 }
176 
177 /* using a counter to merge subdriver requests with our own into a combined state */
178 static int qmi_wwan_manage_power(struct usbnet *dev, int on)
179 {
180 	atomic_t *pmcount = (void *)&dev->data[1];
181 	int rv = 0;
182 
183 	dev_dbg(&dev->intf->dev, "%s() pmcount=%d, on=%d\n", __func__, atomic_read(pmcount), on);
184 
185 	if ((on && atomic_add_return(1, pmcount) == 1) || (!on && atomic_dec_and_test(pmcount))) {
186 		/* need autopm_get/put here to ensure the usbcore sees the new value */
187 		rv = usb_autopm_get_interface(dev->intf);
188 		if (rv < 0)
189 			goto err;
190 		dev->intf->needs_remote_wakeup = on;
191 		usb_autopm_put_interface(dev->intf);
192 	}
193 err:
194 	return rv;
195 }
196 
197 static int qmi_wwan_cdc_wdm_manage_power(struct usb_interface *intf, int on)
198 {
199 	struct usbnet *dev = usb_get_intfdata(intf);
200 
201 	/* can be called while disconnecting */
202 	if (!dev)
203 		return 0;
204 	return qmi_wwan_manage_power(dev, on);
205 }
206 
207 /* Some devices combine the "control" and "data" functions into a
208  * single interface with all three endpoints: interrupt + bulk in and
209  * out
210  *
211  * Setting up cdc-wdm as a subdriver owning the interrupt endpoint
212  * will let it provide userspace access to the encapsulated QMI
213  * protocol without interfering with the usbnet operations.
214   */
215 static int qmi_wwan_bind_shared(struct usbnet *dev, struct usb_interface *intf)
216 {
217 	int rv;
218 	struct usb_driver *subdriver = NULL;
219 	atomic_t *pmcount = (void *)&dev->data[1];
220 
221 	/* ZTE makes devices where the interface descriptors and endpoint
222 	 * configurations of two or more interfaces are identical, even
223 	 * though the functions are completely different.  If set, then
224 	 * driver_info->data is a bitmap of acceptable interface numbers
225 	 * allowing us to bind to one such interface without binding to
226 	 * all of them
227 	 */
228 	if (dev->driver_info->data &&
229 	    !test_bit(intf->cur_altsetting->desc.bInterfaceNumber, &dev->driver_info->data)) {
230 		dev_info(&intf->dev, "not on our whitelist - ignored");
231 		rv = -ENODEV;
232 		goto err;
233 	}
234 
235 	atomic_set(pmcount, 0);
236 
237 	/* collect all three endpoints */
238 	rv = usbnet_get_endpoints(dev, intf);
239 	if (rv < 0)
240 		goto err;
241 
242 	/* require interrupt endpoint for subdriver */
243 	if (!dev->status) {
244 		rv = -EINVAL;
245 		goto err;
246 	}
247 
248 	subdriver = usb_cdc_wdm_register(intf, &dev->status->desc, 512, &qmi_wwan_cdc_wdm_manage_power);
249 	if (IS_ERR(subdriver)) {
250 		rv = PTR_ERR(subdriver);
251 		goto err;
252 	}
253 
254 	/* can't let usbnet use the interrupt endpoint */
255 	dev->status = NULL;
256 
257 	/* save subdriver struct for suspend/resume wrappers */
258 	dev->data[0] = (unsigned long)subdriver;
259 
260 err:
261 	return rv;
262 }
263 
264 static void qmi_wwan_unbind_shared(struct usbnet *dev, struct usb_interface *intf)
265 {
266 	struct usb_driver *subdriver = (void *)dev->data[0];
267 
268 	if (subdriver && subdriver->disconnect)
269 		subdriver->disconnect(intf);
270 
271 	dev->data[0] = (unsigned long)NULL;
272 }
273 
274 /* suspend/resume wrappers calling both usbnet and the cdc-wdm
275  * subdriver if present.
276  *
277  * NOTE: cdc-wdm also supports pre/post_reset, but we cannot provide
278  * wrappers for those without adding usbnet reset support first.
279  */
280 static int qmi_wwan_suspend(struct usb_interface *intf, pm_message_t message)
281 {
282 	struct usbnet *dev = usb_get_intfdata(intf);
283 	struct usb_driver *subdriver = (void *)dev->data[0];
284 	int ret;
285 
286 	ret = usbnet_suspend(intf, message);
287 	if (ret < 0)
288 		goto err;
289 
290 	if (subdriver && subdriver->suspend)
291 		ret = subdriver->suspend(intf, message);
292 	if (ret < 0)
293 		usbnet_resume(intf);
294 err:
295 	return ret;
296 }
297 
298 static int qmi_wwan_resume(struct usb_interface *intf)
299 {
300 	struct usbnet *dev = usb_get_intfdata(intf);
301 	struct usb_driver *subdriver = (void *)dev->data[0];
302 	int ret = 0;
303 
304 	if (subdriver && subdriver->resume)
305 		ret = subdriver->resume(intf);
306 	if (ret < 0)
307 		goto err;
308 	ret = usbnet_resume(intf);
309 	if (ret < 0 && subdriver && subdriver->resume && subdriver->suspend)
310 		subdriver->suspend(intf, PMSG_SUSPEND);
311 err:
312 	return ret;
313 }
314 
315 
316 static const struct driver_info	qmi_wwan_info = {
317 	.description	= "QMI speaking wwan device",
318 	.flags		= FLAG_WWAN,
319 	.bind		= qmi_wwan_bind,
320 	.manage_power	= qmi_wwan_manage_power,
321 };
322 
323 static const struct driver_info	qmi_wwan_shared = {
324 	.description	= "QMI speaking wwan device with combined interface",
325 	.flags		= FLAG_WWAN,
326 	.bind		= qmi_wwan_bind_shared,
327 	.unbind		= qmi_wwan_unbind_shared,
328 	.manage_power	= qmi_wwan_manage_power,
329 };
330 
331 static const struct driver_info	qmi_wwan_force_int0 = {
332 	.description	= "Qualcomm WWAN/QMI device",
333 	.flags		= FLAG_WWAN,
334 	.bind		= qmi_wwan_bind_shared,
335 	.unbind		= qmi_wwan_unbind_shared,
336 	.manage_power	= qmi_wwan_manage_power,
337 	.data		= BIT(0), /* interface whitelist bitmap */
338 };
339 
340 static const struct driver_info	qmi_wwan_force_int1 = {
341 	.description	= "Qualcomm WWAN/QMI device",
342 	.flags		= FLAG_WWAN,
343 	.bind		= qmi_wwan_bind_shared,
344 	.unbind		= qmi_wwan_unbind_shared,
345 	.manage_power	= qmi_wwan_manage_power,
346 	.data		= BIT(1), /* interface whitelist bitmap */
347 };
348 
349 static const struct driver_info	qmi_wwan_force_int3 = {
350 	.description	= "Qualcomm WWAN/QMI device",
351 	.flags		= FLAG_WWAN,
352 	.bind		= qmi_wwan_bind_shared,
353 	.unbind		= qmi_wwan_unbind_shared,
354 	.manage_power	= qmi_wwan_manage_power,
355 	.data		= BIT(3), /* interface whitelist bitmap */
356 };
357 
358 static const struct driver_info	qmi_wwan_force_int4 = {
359 	.description	= "Qualcomm WWAN/QMI device",
360 	.flags		= FLAG_WWAN,
361 	.bind		= qmi_wwan_bind_shared,
362 	.unbind		= qmi_wwan_unbind_shared,
363 	.manage_power	= qmi_wwan_manage_power,
364 	.data		= BIT(4), /* interface whitelist bitmap */
365 };
366 
367 /* Sierra Wireless provide equally useless interface descriptors
368  * Devices in QMI mode can be switched between two different
369  * configurations:
370  *   a) USB interface #8 is QMI/wwan
371  *   b) USB interfaces #8, #19 and #20 are QMI/wwan
372  *
373  * Both configurations provide a number of other interfaces (serial++),
374  * some of which have the same endpoint configuration as we expect, so
375  * a whitelist or blacklist is necessary.
376  *
377  * FIXME: The below whitelist should include BIT(20).  It does not
378  * because I cannot get it to work...
379  */
380 static const struct driver_info	qmi_wwan_sierra = {
381 	.description	= "Sierra Wireless wwan/QMI device",
382 	.flags		= FLAG_WWAN,
383 	.bind		= qmi_wwan_bind_shared,
384 	.unbind		= qmi_wwan_unbind_shared,
385 	.manage_power	= qmi_wwan_manage_power,
386 	.data		= BIT(8) | BIT(19), /* interface whitelist bitmap */
387 };
388 
389 #define HUAWEI_VENDOR_ID	0x12D1
390 
391 /* Gobi 1000 QMI/wwan interface number is 3 according to qcserial */
392 #define QMI_GOBI1K_DEVICE(vend, prod) \
393 	USB_DEVICE(vend, prod), \
394 	.driver_info = (unsigned long)&qmi_wwan_force_int3
395 
396 /* Gobi 2000 and Gobi 3000 QMI/wwan interface number is 0 according to qcserial */
397 #define QMI_GOBI_DEVICE(vend, prod) \
398 	USB_DEVICE(vend, prod), \
399 	.driver_info = (unsigned long)&qmi_wwan_force_int0
400 
401 static const struct usb_device_id products[] = {
402 	{	/* Huawei E392, E398 and possibly others sharing both device id and more... */
403 		.match_flags        = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_INFO,
404 		.idVendor           = HUAWEI_VENDOR_ID,
405 		.bInterfaceClass    = USB_CLASS_VENDOR_SPEC,
406 		.bInterfaceSubClass = 1,
407 		.bInterfaceProtocol = 8, /* NOTE: This is the *slave* interface of the CDC Union! */
408 		.driver_info        = (unsigned long)&qmi_wwan_info,
409 	},
410 	{	/* Vodafone/Huawei K5005 (12d1:14c8) and similar modems */
411 		.match_flags        = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_INFO,
412 		.idVendor           = HUAWEI_VENDOR_ID,
413 		.bInterfaceClass    = USB_CLASS_VENDOR_SPEC,
414 		.bInterfaceSubClass = 1,
415 		.bInterfaceProtocol = 56, /* NOTE: This is the *slave* interface of the CDC Union! */
416 		.driver_info        = (unsigned long)&qmi_wwan_info,
417 	},
418 	{	/* Huawei E392, E398 and possibly others in "Windows mode"
419 		 * using a combined control and data interface without any CDC
420 		 * functional descriptors
421 		 */
422 		.match_flags        = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_INFO,
423 		.idVendor           = HUAWEI_VENDOR_ID,
424 		.bInterfaceClass    = USB_CLASS_VENDOR_SPEC,
425 		.bInterfaceSubClass = 1,
426 		.bInterfaceProtocol = 17,
427 		.driver_info        = (unsigned long)&qmi_wwan_shared,
428 	},
429 	{	/* Pantech UML290 */
430 		.match_flags	    = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
431 		.idVendor           = 0x106c,
432 		.idProduct          = 0x3718,
433 		.bInterfaceClass    = 0xff,
434 		.bInterfaceSubClass = 0xf0,
435 		.bInterfaceProtocol = 0xff,
436 		.driver_info        = (unsigned long)&qmi_wwan_shared,
437 	},
438 	{	/* ZTE MF820D */
439 		.match_flags	    = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
440 		.idVendor           = 0x19d2,
441 		.idProduct          = 0x0167,
442 		.bInterfaceClass    = 0xff,
443 		.bInterfaceSubClass = 0xff,
444 		.bInterfaceProtocol = 0xff,
445 		.driver_info        = (unsigned long)&qmi_wwan_force_int4,
446 	},
447 	{	/* ZTE (Vodafone) K3520-Z */
448 		.match_flags	    = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
449 		.idVendor           = 0x19d2,
450 		.idProduct          = 0x0055,
451 		.bInterfaceClass    = 0xff,
452 		.bInterfaceSubClass = 0xff,
453 		.bInterfaceProtocol = 0xff,
454 		.driver_info        = (unsigned long)&qmi_wwan_force_int1,
455 	},
456 	{	/* ZTE (Vodafone) K3565-Z */
457 		.match_flags	    = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
458 		.idVendor           = 0x19d2,
459 		.idProduct          = 0x0063,
460 		.bInterfaceClass    = 0xff,
461 		.bInterfaceSubClass = 0xff,
462 		.bInterfaceProtocol = 0xff,
463 		.driver_info        = (unsigned long)&qmi_wwan_force_int4,
464 	},
465 	{	/* ZTE (Vodafone) K3570-Z */
466 		.match_flags	    = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
467 		.idVendor           = 0x19d2,
468 		.idProduct          = 0x1008,
469 		.bInterfaceClass    = 0xff,
470 		.bInterfaceSubClass = 0xff,
471 		.bInterfaceProtocol = 0xff,
472 		.driver_info        = (unsigned long)&qmi_wwan_force_int4,
473 	},
474 	{	/* ZTE (Vodafone) K3571-Z */
475 		.match_flags	    = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
476 		.idVendor           = 0x19d2,
477 		.idProduct          = 0x1010,
478 		.bInterfaceClass    = 0xff,
479 		.bInterfaceSubClass = 0xff,
480 		.bInterfaceProtocol = 0xff,
481 		.driver_info        = (unsigned long)&qmi_wwan_force_int4,
482 	},
483 	{	/* ZTE (Vodafone) K3765-Z */
484 		.match_flags	    = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
485 		.idVendor           = 0x19d2,
486 		.idProduct          = 0x2002,
487 		.bInterfaceClass    = 0xff,
488 		.bInterfaceSubClass = 0xff,
489 		.bInterfaceProtocol = 0xff,
490 		.driver_info        = (unsigned long)&qmi_wwan_force_int4,
491 	},
492 	{	/* ZTE (Vodafone) K4505-Z */
493 		.match_flags	    = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
494 		.idVendor           = 0x19d2,
495 		.idProduct          = 0x0104,
496 		.bInterfaceClass    = 0xff,
497 		.bInterfaceSubClass = 0xff,
498 		.bInterfaceProtocol = 0xff,
499 		.driver_info        = (unsigned long)&qmi_wwan_force_int4,
500 	},
501 	{	/* Sierra Wireless MC77xx in QMI mode */
502 		.match_flags	    = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
503 		.idVendor           = 0x1199,
504 		.idProduct          = 0x68a2,
505 		.bInterfaceClass    = 0xff,
506 		.bInterfaceSubClass = 0xff,
507 		.bInterfaceProtocol = 0xff,
508 		.driver_info        = (unsigned long)&qmi_wwan_sierra,
509 	},
510 
511 	/* Gobi 1000 devices */
512 	{QMI_GOBI1K_DEVICE(0x05c6, 0x9212)},	/* Acer Gobi Modem Device */
513 	{QMI_GOBI1K_DEVICE(0x03f0, 0x1f1d)},	/* HP un2400 Gobi Modem Device */
514 	{QMI_GOBI1K_DEVICE(0x03f0, 0x371d)},	/* HP un2430 Mobile Broadband Module */
515 	{QMI_GOBI1K_DEVICE(0x04da, 0x250d)},	/* Panasonic Gobi Modem device */
516 	{QMI_GOBI1K_DEVICE(0x413c, 0x8172)},	/* Dell Gobi Modem device */
517 	{QMI_GOBI1K_DEVICE(0x1410, 0xa001)},	/* Novatel Gobi Modem device */
518 	{QMI_GOBI1K_DEVICE(0x0b05, 0x1776)},	/* Asus Gobi Modem device */
519 	{QMI_GOBI1K_DEVICE(0x19d2, 0xfff3)},	/* ONDA Gobi Modem device */
520 	{QMI_GOBI1K_DEVICE(0x05c6, 0x9001)},	/* Generic Gobi Modem device */
521 	{QMI_GOBI1K_DEVICE(0x05c6, 0x9002)},	/* Generic Gobi Modem device */
522 	{QMI_GOBI1K_DEVICE(0x05c6, 0x9202)},	/* Generic Gobi Modem device */
523 	{QMI_GOBI1K_DEVICE(0x05c6, 0x9203)},	/* Generic Gobi Modem device */
524 	{QMI_GOBI1K_DEVICE(0x05c6, 0x9222)},	/* Generic Gobi Modem device */
525 	{QMI_GOBI1K_DEVICE(0x05c6, 0x9009)},	/* Generic Gobi Modem device */
526 
527 	/* Gobi 2000 and 3000 devices */
528 	{QMI_GOBI_DEVICE(0x413c, 0x8186)},	/* Dell Gobi 2000 Modem device (N0218, VU936) */
529 	{QMI_GOBI_DEVICE(0x05c6, 0x920b)},	/* Generic Gobi 2000 Modem device */
530 	{QMI_GOBI_DEVICE(0x05c6, 0x9225)},	/* Sony Gobi 2000 Modem device (N0279, VU730) */
531 	{QMI_GOBI_DEVICE(0x05c6, 0x9245)},	/* Samsung Gobi 2000 Modem device (VL176) */
532 	{QMI_GOBI_DEVICE(0x03f0, 0x251d)},	/* HP Gobi 2000 Modem device (VP412) */
533 	{QMI_GOBI_DEVICE(0x05c6, 0x9215)},	/* Acer Gobi 2000 Modem device (VP413) */
534 	{QMI_GOBI_DEVICE(0x05c6, 0x9265)},	/* Asus Gobi 2000 Modem device (VR305) */
535 	{QMI_GOBI_DEVICE(0x05c6, 0x9235)},	/* Top Global Gobi 2000 Modem device (VR306) */
536 	{QMI_GOBI_DEVICE(0x05c6, 0x9275)},	/* iRex Technologies Gobi 2000 Modem device (VR307) */
537 	{QMI_GOBI_DEVICE(0x1199, 0x9001)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
538 	{QMI_GOBI_DEVICE(0x1199, 0x9002)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
539 	{QMI_GOBI_DEVICE(0x1199, 0x9003)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
540 	{QMI_GOBI_DEVICE(0x1199, 0x9004)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
541 	{QMI_GOBI_DEVICE(0x1199, 0x9005)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
542 	{QMI_GOBI_DEVICE(0x1199, 0x9006)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
543 	{QMI_GOBI_DEVICE(0x1199, 0x9007)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
544 	{QMI_GOBI_DEVICE(0x1199, 0x9008)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
545 	{QMI_GOBI_DEVICE(0x1199, 0x9009)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
546 	{QMI_GOBI_DEVICE(0x1199, 0x900a)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
547 	{QMI_GOBI_DEVICE(0x1199, 0x9011)},	/* Sierra Wireless Gobi 2000 Modem device (MC8305) */
548 	{QMI_GOBI_DEVICE(0x16d8, 0x8002)},	/* CMDTech Gobi 2000 Modem device (VU922) */
549 	{QMI_GOBI_DEVICE(0x05c6, 0x9205)},	/* Gobi 2000 Modem device */
550 	{QMI_GOBI_DEVICE(0x1199, 0x9013)},	/* Sierra Wireless Gobi 3000 Modem device (MC8355) */
551 	{QMI_GOBI_DEVICE(0x1199, 0x9015)},	/* Sierra Wireless Gobi 3000 Modem device */
552 	{QMI_GOBI_DEVICE(0x1199, 0x9019)},	/* Sierra Wireless Gobi 3000 Modem device */
553 	{ }					/* END */
554 };
555 MODULE_DEVICE_TABLE(usb, products);
556 
557 static struct usb_driver qmi_wwan_driver = {
558 	.name		      = "qmi_wwan",
559 	.id_table	      = products,
560 	.probe		      =	usbnet_probe,
561 	.disconnect	      = usbnet_disconnect,
562 	.suspend	      = qmi_wwan_suspend,
563 	.resume		      =	qmi_wwan_resume,
564 	.reset_resume         = qmi_wwan_resume,
565 	.supports_autosuspend = 1,
566 	.disable_hub_initiated_lpm = 1,
567 };
568 
569 static int __init qmi_wwan_init(void)
570 {
571 	return usb_register(&qmi_wwan_driver);
572 }
573 module_init(qmi_wwan_init);
574 
575 static void __exit qmi_wwan_exit(void)
576 {
577 	usb_deregister(&qmi_wwan_driver);
578 }
579 module_exit(qmi_wwan_exit);
580 
581 MODULE_AUTHOR("Bjørn Mork <bjorn@mork.no>");
582 MODULE_DESCRIPTION("Qualcomm MSM Interface (QMI) WWAN driver");
583 MODULE_LICENSE("GPL");
584