aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/usb/serial/qcserial.c
blob: aa148c21ea40e82a6f49b58b855ed2278f53cf3a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
/*
 * Qualcomm Serial USB driver
 *
 *	Copyright (c) 2008 QUALCOMM Incorporated.
 *	Copyright (c) 2009 Greg Kroah-Hartman <gregkh@suse.de>
 *	Copyright (c) 2009 Novell Inc.
 *
 *	This program is free software; you can redistribute it and/or
 *	modify it under the terms of the GNU General Public License version
 *	2 as published by the Free Software Foundation.
 *
 */

#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
#include <linux/slab.h>
#include "usb-wwan.h"

#define DRIVER_AUTHOR "Qualcomm Inc"
#define DRIVER_DESC "Qualcomm USB Serial driver"

#define DEVICE_G1K(v, p) \
	USB_DEVICE(v, p), .driver_info = 1

static const struct usb_device_id id_table[] = {
	/* Gobi 1000 devices */
	{DEVICE_G1K(0x05c6, 0x9211)},	/* Acer Gobi QDL device */
	{DEVICE_G1K(0x05c6, 0x9212)},	/* Acer Gobi Modem Device */
	{DEVICE_G1K(0x03f0, 0x1f1d)},	/* HP un2400 Gobi Modem Device */
	{DEVICE_G1K(0x03f0, 0x201d)},	/* HP un2400 Gobi QDL Device */
	{DEVICE_G1K(0x04da, 0x250d)},	/* Panasonic Gobi Modem device */
	{DEVICE_G1K(0x04da, 0x250c)},	/* Panasonic Gobi QDL device */
	{DEVICE_G1K(0x413c, 0x8172)},	/* Dell Gobi Modem device */
	{DEVICE_G1K(0x413c, 0x8171)},	/* Dell Gobi QDL device */
	{DEVICE_G1K(0x1410, 0xa001)},	/* Novatel Gobi Modem device */
	{DEVICE_G1K(0x1410, 0xa008)},	/* Novatel Gobi QDL device */
	{DEVICE_G1K(0x0b05, 0x1776)},	/* Asus Gobi Modem device */
	{DEVICE_G1K(0x0b05, 0x1774)},	/* Asus Gobi QDL device */
	{DEVICE_G1K(0x19d2, 0xfff3)},	/* ONDA Gobi Modem device */
	{DEVICE_G1K(0x19d2, 0xfff2)},	/* ONDA Gobi QDL device */
	{DEVICE_G1K(0x1557, 0x0a80)},	/* OQO Gobi QDL device */
	{DEVICE_G1K(0x05c6, 0x9001)},   /* Generic Gobi Modem device */
	{DEVICE_G1K(0x05c6, 0x9002)},	/* Generic Gobi Modem device */
	{DEVICE_G1K(0x05c6, 0x9202)},	/* Generic Gobi Modem device */
	{DEVICE_G1K(0x05c6, 0x9203)},	/* Generic Gobi Modem device */
	{DEVICE_G1K(0x05c6, 0x9222)},	/* Generic Gobi Modem device */
	{DEVICE_G1K(0x05c6, 0x9008)},	/* Generic Gobi QDL device */
	{DEVICE_G1K(0x05c6, 0x9009)},	/* Generic Gobi Modem device */
	{DEVICE_G1K(0x05c6, 0x9201)},	/* Generic Gobi QDL device */
	{DEVICE_G1K(0x05c6, 0x9221)},	/* Generic Gobi QDL device */
	{DEVICE_G1K(0x05c6, 0x9231)},	/* Generic Gobi QDL device */
	{DEVICE_G1K(0x1f45, 0x0001)},	/* Unknown Gobi QDL device */

	/* Gobi 2000 devices */
	{USB_DEVICE(0x1410, 0xa010)},	/* Novatel Gobi 2000 QDL device */
	{USB_DEVICE(0x1410, 0xa011)},	/* Novatel Gobi 2000 QDL device */
	{USB_DEVICE(0x1410, 0xa012)},	/* Novatel Gobi 2000 QDL device */
	{USB_DEVICE(0x1410, 0xa013)},	/* Novatel Gobi 2000 QDL device */
	{USB_DEVICE(0x1410, 0xa014)},	/* Novatel Gobi 2000 QDL device */
	{USB_DEVICE(0x413c, 0x8185)},	/* Dell Gobi 2000 QDL device (N0218, VU936) */
	{USB_DEVICE(0x413c, 0x8186)},	/* Dell Gobi 2000 Modem device (N0218, VU936) */
	{USB_DEVICE(0x05c6, 0x9208)},	/* Generic Gobi 2000 QDL device */
	{USB_DEVICE(0x05c6, 0x920b)},	/* Generic Gobi 2000 Modem device */
	{USB_DEVICE(0x05c6, 0x9224)},	/* Sony Gobi 2000 QDL device (N0279, VU730) */
	{USB_DEVICE(0x05c6, 0x9225)},	/* Sony Gobi 2000 Modem device (N0279, VU730) */
	{USB_DEVICE(0x05c6, 0x9244)},	/* Samsung Gobi 2000 QDL device (VL176) */
	{USB_DEVICE(0x05c6, 0x9245)},	/* Samsung Gobi 2000 Modem device (VL176) */
	{USB_DEVICE(0x03f0, 0x241d)},	/* HP Gobi 2000 QDL device (VP412) */
	{USB_DEVICE(0x03f0, 0x251d)},	/* HP Gobi 2000 Modem device (VP412) */
	{USB_DEVICE(0x05c6, 0x9214)},	/* Acer Gobi 2000 QDL device (VP413) */
	{USB_DEVICE(0x05c6, 0x9215)},	/* Acer Gobi 2000 Modem device (VP413) */
	{USB_DEVICE(0x05c6, 0x9264)},	/* Asus Gobi 2000 QDL device (VR305) */
	{USB_DEVICE(0x05c6, 0x9265)},	/* Asus Gobi 2000 Modem device (VR305) */
	{USB_DEVICE(0x05c6, 0x9234)},	/* Top Global Gobi 2000 QDL device (VR306) */
	{USB_DEVICE(0x05c6, 0x9235)},	/* Top Global Gobi 2000 Modem device (VR306) */
	{USB_DEVICE(0x05c6, 0x9274)},	/* iRex Technologies Gobi 2000 QDL device (VR307) */
	{USB_DEVICE(0x05c6, 0x9275)},	/* iRex Technologies Gobi 2000 Modem device (VR307) */
	{USB_DEVICE(0x1199, 0x9000)},	/* Sierra Wireless Gobi 2000 QDL device (VT773) */
	{USB_DEVICE(0x1199, 0x9001)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
	{USB_DEVICE(0x1199, 0x9002)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
	{USB_DEVICE(0x1199, 0x9003)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
	{USB_DEVICE(0x1199, 0x9004)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
	{USB_DEVICE(0x1199, 0x9005)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
	{USB_DEVICE(0x1199, 0x9006)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
	{USB_DEVICE(0x1199, 0x9007)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
	{USB_DEVICE(0x1199, 0x9008)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
	{USB_DEVICE(0x1199, 0x9009)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
	{USB_DEVICE(0x1199, 0x900a)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
	{USB_DEVICE(0x1199, 0x9011)},   /* Sierra Wireless Gobi 2000 Modem device (MC8305) */
	{USB_DEVICE(0x16d8, 0x8001)},	/* CMDTech Gobi 2000 QDL device (VU922) */
	{USB_DEVICE(0x16d8, 0x8002)},	/* CMDTech Gobi 2000 Modem device (VU922) */
	{USB_DEVICE(0x05c6, 0x9204)},	/* Gobi 2000 QDL device */
	{USB_DEVICE(0x05c6, 0x9205)},	/* Gobi 2000 Modem device */

	/* Gobi 3000 devices */
	{USB_DEVICE(0x03f0, 0x371d)},	/* HP un2430 Gobi 3000 QDL */
	{USB_DEVICE(0x05c6, 0x920c)},	/* Gobi 3000 QDL */
	{USB_DEVICE(0x05c6, 0x920d)},	/* Gobi 3000 Composite */
	{USB_DEVICE(0x1410, 0xa020)},   /* Novatel Gobi 3000 QDL */
	{USB_DEVICE(0x1410, 0xa021)},	/* Novatel Gobi 3000 Composite */
	{USB_DEVICE(0x413c, 0x8193)},	/* Dell Gobi 3000 QDL */
	{USB_DEVICE(0x413c, 0x8194)},	/* Dell Gobi 3000 Composite */
	{USB_DEVICE(0x1199, 0x68a4)},	/* Sierra Wireless QDL */
	{USB_DEVICE(0x1199, 0x68a5)},	/* Sierra Wireless Modem */
	{USB_DEVICE(0x1199, 0x68a8)},	/* Sierra Wireless QDL */
	{USB_DEVICE(0x1199, 0x68a9)},	/* Sierra Wireless Modem */
	{USB_DEVICE(0x1199, 0x9010)},	/* Sierra Wireless Gobi 3000 QDL */
	{USB_DEVICE(0x1199, 0x9012)},	/* Sierra Wireless Gobi 3000 QDL */
	{USB_DEVICE(0x1199, 0x9013)},	/* Sierra Wireless Gobi 3000 Modem device (MC8355) */
	{USB_DEVICE(0x1199, 0x9014)},	/* Sierra Wireless Gobi 3000 QDL */
	{USB_DEVICE(0x1199, 0x9015)},	/* Sierra Wireless Gobi 3000 Modem device */
	{USB_DEVICE(0x1199, 0x9018)},	/* Sierra Wireless Gobi 3000 QDL */
	{USB_DEVICE(0x1199, 0x9019)},	/* Sierra Wireless Gobi 3000 Modem device */
	{USB_DEVICE(0x1199, 0x901b)},	/* Sierra Wireless MC7770 */
	{USB_DEVICE(0x12D1, 0x14F0)},	/* Sony Gobi 3000 QDL */
	{USB_DEVICE(0x12D1, 0x14F1)},	/* Sony Gobi 3000 Composite */

	/* non Gobi Qualcomm serial devices */
	{USB_DEVICE_INTERFACE_NUMBER(0x0f3d, 0x68a2, 0)},	/* Sierra Wireless MC7700 Device Management */
	{USB_DEVICE_INTERFACE_NUMBER(0x0f3d, 0x68a2, 2)},	/* Sierra Wireless MC7700 NMEA */
	{USB_DEVICE_INTERFACE_NUMBER(0x0f3d, 0x68a2, 3)},	/* Sierra Wireless MC7700 Modem */
	{USB_DEVICE_INTERFACE_NUMBER(0x114f, 0x68a2, 0)},	/* Sierra Wireless MC7750 Device Management */
	{USB_DEVICE_INTERFACE_NUMBER(0x114f, 0x68a2, 2)},	/* Sierra Wireless MC7750 NMEA */
	{USB_DEVICE_INTERFACE_NUMBER(0x114f, 0x68a2, 3)},	/* Sierra Wireless MC7750 Modem */
	{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x68a2, 0)},	/* Sierra Wireless MC7710 Device Management */
	{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x68a2, 2)},	/* Sierra Wireless MC7710 NMEA */
	{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x68a2, 3)},	/* Sierra Wireless MC7710 Modem */
	{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901c, 0)},	/* Sierra Wireless EM7700 Device Management */
	{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901c, 2)},	/* Sierra Wireless EM7700 NMEA */
	{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901c, 3)},	/* Sierra Wireless EM7700 Modem */

	{ }				/* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, id_table);

static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
{
	struct usb_host_interface *intf = serial->interface->cur_altsetting;
	struct device *dev = &serial->dev->dev;
	int retval = -ENODEV;
	__u8 nintf;
	__u8 ifnum;
	bool is_gobi1k = id->driver_info ? true : false;
	int altsetting = -1;

	dev_dbg(dev, "Is Gobi 1000 = %d\n", is_gobi1k);

	nintf = serial->dev->actconfig->desc.bNumInterfaces;
	dev_dbg(dev, "Num Interfaces = %d\n", nintf);
	ifnum = intf->desc.bInterfaceNumber;
	dev_dbg(dev, "This Interface = %d\n", ifnum);

	if (nintf == 1) {
		/* QDL mode */
		/* Gobi 2000 has a single altsetting, older ones have two */
		if (serial->interface->num_altsetting == 2)
			intf = &serial->interface->altsetting[1];
		else if (serial->interface->num_altsetting > 2)
			goto done;

		if (intf->desc.bNumEndpoints == 2 &&
		    usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) &&
		    usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) {
			dev_dbg(dev, "QDL port found\n");

			if (serial->interface->num_altsetting == 1)
				retval = 0; /* Success */
			else
				altsetting = 1;
		}
		goto done;

	}

	/* allow any number of interfaces when doing direct interface match */
	if (id->match_flags & USB_DEVICE_ID_MATCH_INT_NUMBER) {
		dev_dbg(dev, "Generic Qualcomm serial interface found\n");
		altsetting = 0;
		goto done;
	}

	if (nintf < 3 || nintf > 4) {
		dev_err(dev, "unknown number of interfaces: %d\n", nintf);
		goto done;
	}

	/* default to enabling interface */
	altsetting = 0;

	/* Composite mode; don't bind to the QMI/net interface as that
	 * gets handled by other drivers.
	 */

	if (is_gobi1k) {
		/* Gobi 1K USB layout:
		 * 0: serial port (doesn't respond)
		 * 1: serial port (doesn't respond)
		 * 2: AT-capable modem port
		 * 3: QMI/net
		 */
		if (ifnum == 2)
			dev_dbg(dev, "Modem port found\n");
		else
			altsetting = -1;
	} else {
		/* Gobi 2K+ USB layout:
		 * 0: QMI/net
		 * 1: DM/DIAG (use libqcdm from ModemManager for communication)
		 * 2: AT-capable modem port
		 * 3: NMEA
		 */
		switch (ifnum) {
		case 0:
			/* Don't claim the QMI/net interface */
			altsetting = -1;
			break;
		case 1:
			dev_dbg(dev, "Gobi 2K+ DM/DIAG interface found\n");
			break;
		case 2:
			dev_dbg(dev, "Modem port found\n");
			break;
		case 3:
			/*
			 * NMEA (serial line 9600 8N1)
			 * # echo "\$GPS_START" > /dev/ttyUSBx
			 * # echo "\$GPS_STOP"  > /dev/ttyUSBx
			 */
			dev_dbg(dev, "Gobi 2K+ NMEA GPS interface found\n");
			break;
		}
	}

done:
	if (altsetting >= 0) {
		retval = usb_set_interface(serial->dev, ifnum, altsetting);
		if (retval < 0) {
			dev_err(dev,
				"Could not set interface, error %d\n",
				retval);
			retval = -ENODEV;
		}
	}

	return retval;
}

static int qc_attach(struct usb_serial *serial)
{
	struct usb_wwan_intf_private *data;

	data = kzalloc(sizeof(*data), GFP_KERNEL);
	if (!data)
		return -ENOMEM;

	spin_lock_init(&data->susp_lock);

	usb_set_serial_data(serial, data);

	return 0;
}

static void qc_release(struct usb_serial *serial)
{
	struct usb_wwan_intf_private *priv = usb_get_serial_data(serial);

	usb_set_serial_data(serial, NULL);
	kfree(priv);
}

static struct usb_serial_driver qcdevice = {
	.driver = {
		.owner     = THIS_MODULE,
		.name      = "qcserial",
	},
	.description         = "Qualcomm USB modem",
	.id_table            = id_table,
	.num_ports           = 1,
	.probe               = qcprobe,
	.open		     = usb_wwan_open,
	.close		     = usb_wwan_close,
	.write		     = usb_wwan_write,
	.write_room	     = usb_wwan_write_room,
	.chars_in_buffer     = usb_wwan_chars_in_buffer,
	.attach              = qc_attach,
	.release	     = qc_release,
	.port_probe          = usb_wwan_port_probe,
	.port_remove	     = usb_wwan_port_remove,
#ifdef CONFIG_PM
	.suspend	     = usb_wwan_suspend,
	.resume		     = usb_wwan_resume,
#endif
};

static struct usb_serial_driver * const serial_drivers[] = {
	&qcdevice, NULL
};

module_usb_serial_driver(serial_drivers, id_table);

MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL v2");