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1/*
2 * Qualcomm Serial USB driver
3 *
4 * Copyright (c) 2008 QUALCOMM Incorporated.
5 * Copyright (c) 2009 Greg Kroah-Hartman <gregkh@suse.de>
6 * Copyright (c) 2009 Novell Inc.
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 version
10 * 2 as published by the Free Software Foundation.
11 *
12 */
13
14#include <linux/tty.h>
15#include <linux/tty_flip.h>
16#include <linux/usb.h>
17#include <linux/usb/serial.h>
18#include <linux/slab.h>
19#include "usb-wwan.h"
20
21#define DRIVER_AUTHOR "Qualcomm Inc"
22#define DRIVER_DESC "Qualcomm USB Serial driver"
23
24static int debug;
25
26static const struct usb_device_id id_table[] = {
27 {USB_DEVICE(0x05c6, 0x9211)}, /* Acer Gobi QDL device */
28 {USB_DEVICE(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */
29 {USB_DEVICE(0x03f0, 0x1f1d)}, /* HP un2400 Gobi Modem Device */
30 {USB_DEVICE(0x03f0, 0x201d)}, /* HP un2400 Gobi QDL Device */
31 {USB_DEVICE(0x04da, 0x250d)}, /* Panasonic Gobi Modem device */
32 {USB_DEVICE(0x04da, 0x250c)}, /* Panasonic Gobi QDL device */
33 {USB_DEVICE(0x413c, 0x8172)}, /* Dell Gobi Modem device */
34 {USB_DEVICE(0x413c, 0x8171)}, /* Dell Gobi QDL device */
35 {USB_DEVICE(0x1410, 0xa001)}, /* Novatel Gobi Modem device */
36 {USB_DEVICE(0x1410, 0xa008)}, /* Novatel Gobi QDL device */
37 {USB_DEVICE(0x0b05, 0x1776)}, /* Asus Gobi Modem device */
38 {USB_DEVICE(0x0b05, 0x1774)}, /* Asus Gobi QDL device */
39 {USB_DEVICE(0x19d2, 0xfff3)}, /* ONDA Gobi Modem device */
40 {USB_DEVICE(0x19d2, 0xfff2)}, /* ONDA Gobi QDL device */
41 {USB_DEVICE(0x1557, 0x0a80)}, /* OQO Gobi QDL device */
42 {USB_DEVICE(0x05c6, 0x9001)}, /* Generic Gobi Modem device */
43 {USB_DEVICE(0x05c6, 0x9002)}, /* Generic Gobi Modem device */
44 {USB_DEVICE(0x05c6, 0x9202)}, /* Generic Gobi Modem device */
45 {USB_DEVICE(0x05c6, 0x9203)}, /* Generic Gobi Modem device */
46 {USB_DEVICE(0x05c6, 0x9222)}, /* Generic Gobi Modem device */
47 {USB_DEVICE(0x05c6, 0x9008)}, /* Generic Gobi QDL device */
48 {USB_DEVICE(0x05c6, 0x9009)}, /* Generic Gobi Modem device */
49 {USB_DEVICE(0x05c6, 0x9201)}, /* Generic Gobi QDL device */
50 {USB_DEVICE(0x05c6, 0x9221)}, /* Generic Gobi QDL device */
51 {USB_DEVICE(0x05c6, 0x9231)}, /* Generic Gobi QDL device */
52 {USB_DEVICE(0x1f45, 0x0001)}, /* Unknown Gobi QDL device */
53 {USB_DEVICE(0x413c, 0x8185)}, /* Dell Gobi 2000 QDL device (N0218, VU936) */
54 {USB_DEVICE(0x413c, 0x8186)}, /* Dell Gobi 2000 Modem device (N0218, VU936) */
55 {USB_DEVICE(0x05c6, 0x9208)}, /* Generic Gobi 2000 QDL device */
56 {USB_DEVICE(0x05c6, 0x920b)}, /* Generic Gobi 2000 Modem device */
57 {USB_DEVICE(0x05c6, 0x9224)}, /* Sony Gobi 2000 QDL device (N0279, VU730) */
58 {USB_DEVICE(0x05c6, 0x9225)}, /* Sony Gobi 2000 Modem device (N0279, VU730) */
59 {USB_DEVICE(0x05c6, 0x9244)}, /* Samsung Gobi 2000 QDL device (VL176) */
60 {USB_DEVICE(0x05c6, 0x9245)}, /* Samsung Gobi 2000 Modem device (VL176) */
61 {USB_DEVICE(0x03f0, 0x241d)}, /* HP Gobi 2000 QDL device (VP412) */
62 {USB_DEVICE(0x03f0, 0x251d)}, /* HP Gobi 2000 Modem device (VP412) */
63 {USB_DEVICE(0x05c6, 0x9214)}, /* Acer Gobi 2000 QDL device (VP413) */
64 {USB_DEVICE(0x05c6, 0x9215)}, /* Acer Gobi 2000 Modem device (VP413) */
65 {USB_DEVICE(0x05c6, 0x9264)}, /* Asus Gobi 2000 QDL device (VR305) */
66 {USB_DEVICE(0x05c6, 0x9265)}, /* Asus Gobi 2000 Modem device (VR305) */
67 {USB_DEVICE(0x05c6, 0x9234)}, /* Top Global Gobi 2000 QDL device (VR306) */
68 {USB_DEVICE(0x05c6, 0x9235)}, /* Top Global Gobi 2000 Modem device (VR306) */
69 {USB_DEVICE(0x05c6, 0x9274)}, /* iRex Technologies Gobi 2000 QDL device (VR307) */
70 {USB_DEVICE(0x05c6, 0x9275)}, /* iRex Technologies Gobi 2000 Modem device (VR307) */
71 {USB_DEVICE(0x1199, 0x9000)}, /* Sierra Wireless Gobi 2000 QDL device (VT773) */
72 {USB_DEVICE(0x1199, 0x9001)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
73 {USB_DEVICE(0x1199, 0x9002)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
74 {USB_DEVICE(0x1199, 0x9003)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
75 {USB_DEVICE(0x1199, 0x9004)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
76 {USB_DEVICE(0x1199, 0x9005)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
77 {USB_DEVICE(0x1199, 0x9006)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
78 {USB_DEVICE(0x1199, 0x9007)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
79 {USB_DEVICE(0x1199, 0x9008)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
80 {USB_DEVICE(0x1199, 0x9009)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
81 {USB_DEVICE(0x1199, 0x900a)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
82 {USB_DEVICE(0x1199, 0x9011)}, /* Sierra Wireless Gobi 2000 Modem device (MC8305) */
83 {USB_DEVICE(0x16d8, 0x8001)}, /* CMDTech Gobi 2000 QDL device (VU922) */
84 {USB_DEVICE(0x16d8, 0x8002)}, /* CMDTech Gobi 2000 Modem device (VU922) */
85 {USB_DEVICE(0x05c6, 0x9204)}, /* Gobi 2000 QDL device */
86 {USB_DEVICE(0x05c6, 0x9205)}, /* Gobi 2000 Modem device */
87 { } /* Terminating entry */
88};
89MODULE_DEVICE_TABLE(usb, id_table);
90
91static struct usb_driver qcdriver = {
92 .name = "qcserial",
93 .probe = usb_serial_probe,
94 .disconnect = usb_serial_disconnect,
95 .id_table = id_table,
96 .suspend = usb_serial_suspend,
97 .resume = usb_serial_resume,
98 .supports_autosuspend = true,
99};
100
101static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
102{
103 struct usb_wwan_intf_private *data;
104 struct usb_host_interface *intf = serial->interface->cur_altsetting;
105 int retval = -ENODEV;
106 __u8 nintf;
107 __u8 ifnum;
108
109 dbg("%s", __func__);
110
111 nintf = serial->dev->actconfig->desc.bNumInterfaces;
112 dbg("Num Interfaces = %d", nintf);
113 ifnum = intf->desc.bInterfaceNumber;
114 dbg("This Interface = %d", ifnum);
115
116 data = kzalloc(sizeof(struct usb_wwan_intf_private),
117 GFP_KERNEL);
118 if (!data)
119 return -ENOMEM;
120
121 spin_lock_init(&data->susp_lock);
122
123 usb_enable_autosuspend(serial->dev);
124
125 switch (nintf) {
126 case 1:
127 /* QDL mode */
128 /* Gobi 2000 has a single altsetting, older ones have two */
129 if (serial->interface->num_altsetting == 2)
130 intf = &serial->interface->altsetting[1];
131 else if (serial->interface->num_altsetting > 2)
132 break;
133
134 if (intf->desc.bNumEndpoints == 2 &&
135 usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) &&
136 usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) {
137 dbg("QDL port found");
138
139 if (serial->interface->num_altsetting == 1) {
140 retval = 0; /* Success */
141 break;
142 }
143
144 retval = usb_set_interface(serial->dev, ifnum, 1);
145 if (retval < 0) {
146 dev_err(&serial->dev->dev,
147 "Could not set interface, error %d\n",
148 retval);
149 retval = -ENODEV;
150 kfree(data);
151 }
152 }
153 break;
154
155 case 3:
156 case 4:
157 /* Composite mode */
158 /* ifnum == 0 is a broadband network adapter */
159 if (ifnum == 1) {
160 /*
161 * Diagnostics Monitor (serial line 9600 8N1)
162 * Qualcomm DM protocol
163 * use "libqcdm" (ModemManager) for communication
164 */
165 dbg("Diagnostics Monitor found");
166 retval = usb_set_interface(serial->dev, ifnum, 0);
167 if (retval < 0) {
168 dev_err(&serial->dev->dev,
169 "Could not set interface, error %d\n",
170 retval);
171 retval = -ENODEV;
172 kfree(data);
173 }
174 } else if (ifnum == 2) {
175 dbg("Modem port found");
176 retval = usb_set_interface(serial->dev, ifnum, 0);
177 if (retval < 0) {
178 dev_err(&serial->dev->dev,
179 "Could not set interface, error %d\n",
180 retval);
181 retval = -ENODEV;
182 kfree(data);
183 }
184 } else if (ifnum==3) {
185 /*
186 * NMEA (serial line 9600 8N1)
187 * # echo "\$GPS_START" > /dev/ttyUSBx
188 * # echo "\$GPS_STOP" > /dev/ttyUSBx
189 */
190 dbg("NMEA GPS interface found");
191 retval = usb_set_interface(serial->dev, ifnum, 0);
192 if (retval < 0) {
193 dev_err(&serial->dev->dev,
194 "Could not set interface, error %d\n",
195 retval);
196 retval = -ENODEV;
197 kfree(data);
198 }
199 }
200 break;
201
202 default:
203 dev_err(&serial->dev->dev,
204 "unknown number of interfaces: %d\n", nintf);
205 kfree(data);
206 retval = -ENODEV;
207 }
208
209 /* Set serial->private if not returning -ENODEV */
210 if (retval != -ENODEV)
211 usb_set_serial_data(serial, data);
212 return retval;
213}
214
215static void qc_release(struct usb_serial *serial)
216{
217 struct usb_wwan_intf_private *priv = usb_get_serial_data(serial);
218
219 dbg("%s", __func__);
220
221 /* Call usb_wwan release & free the private data allocated in qcprobe */
222 usb_wwan_release(serial);
223 usb_set_serial_data(serial, NULL);
224 kfree(priv);
225}
226
227static struct usb_serial_driver qcdevice = {
228 .driver = {
229 .owner = THIS_MODULE,
230 .name = "qcserial",
231 },
232 .description = "Qualcomm USB modem",
233 .id_table = id_table,
234 .usb_driver = &qcdriver,
235 .num_ports = 1,
236 .probe = qcprobe,
237 .open = usb_wwan_open,
238 .close = usb_wwan_close,
239 .write = usb_wwan_write,
240 .write_room = usb_wwan_write_room,
241 .chars_in_buffer = usb_wwan_chars_in_buffer,
242 .attach = usb_wwan_startup,
243 .disconnect = usb_wwan_disconnect,
244 .release = qc_release,
245#ifdef CONFIG_PM
246 .suspend = usb_wwan_suspend,
247 .resume = usb_wwan_resume,
248#endif
249};
250
251static int __init qcinit(void)
252{
253 int retval;
254
255 retval = usb_serial_register(&qcdevice);
256 if (retval)
257 return retval;
258
259 retval = usb_register(&qcdriver);
260 if (retval) {
261 usb_serial_deregister(&qcdevice);
262 return retval;
263 }
264
265 return 0;
266}
267
268static void __exit qcexit(void)
269{
270 usb_deregister(&qcdriver);
271 usb_serial_deregister(&qcdevice);
272}
273
274module_init(qcinit);
275module_exit(qcexit);
276
277MODULE_AUTHOR(DRIVER_AUTHOR);
278MODULE_DESCRIPTION(DRIVER_DESC);
279MODULE_LICENSE("GPL v2");
280
281module_param(debug, bool, S_IRUGO | S_IWUSR);
282MODULE_PARM_DESC(debug, "Debug enabled or not");
1/*
2 * Qualcomm Serial USB driver
3 *
4 * Copyright (c) 2008 QUALCOMM Incorporated.
5 * Copyright (c) 2009 Greg Kroah-Hartman <gregkh@suse.de>
6 * Copyright (c) 2009 Novell Inc.
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 version
10 * 2 as published by the Free Software Foundation.
11 *
12 */
13
14#include <linux/tty.h>
15#include <linux/tty_flip.h>
16#include <linux/module.h>
17#include <linux/usb.h>
18#include <linux/usb/serial.h>
19#include <linux/slab.h>
20#include "usb-wwan.h"
21
22#define DRIVER_AUTHOR "Qualcomm Inc"
23#define DRIVER_DESC "Qualcomm USB Serial driver"
24
25static bool debug;
26
27#define DEVICE_G1K(v, p) \
28 USB_DEVICE(v, p), .driver_info = 1
29
30static const struct usb_device_id id_table[] = {
31 /* Gobi 1000 devices */
32 {DEVICE_G1K(0x05c6, 0x9211)}, /* Acer Gobi QDL device */
33 {DEVICE_G1K(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */
34 {DEVICE_G1K(0x03f0, 0x1f1d)}, /* HP un2400 Gobi Modem Device */
35 {DEVICE_G1K(0x03f0, 0x201d)}, /* HP un2400 Gobi QDL Device */
36 {DEVICE_G1K(0x04da, 0x250d)}, /* Panasonic Gobi Modem device */
37 {DEVICE_G1K(0x04da, 0x250c)}, /* Panasonic Gobi QDL device */
38 {DEVICE_G1K(0x413c, 0x8172)}, /* Dell Gobi Modem device */
39 {DEVICE_G1K(0x413c, 0x8171)}, /* Dell Gobi QDL device */
40 {DEVICE_G1K(0x1410, 0xa001)}, /* Novatel Gobi Modem device */
41 {DEVICE_G1K(0x1410, 0xa008)}, /* Novatel Gobi QDL device */
42 {DEVICE_G1K(0x0b05, 0x1776)}, /* Asus Gobi Modem device */
43 {DEVICE_G1K(0x0b05, 0x1774)}, /* Asus Gobi QDL device */
44 {DEVICE_G1K(0x19d2, 0xfff3)}, /* ONDA Gobi Modem device */
45 {DEVICE_G1K(0x19d2, 0xfff2)}, /* ONDA Gobi QDL device */
46 {DEVICE_G1K(0x1557, 0x0a80)}, /* OQO Gobi QDL device */
47 {DEVICE_G1K(0x05c6, 0x9001)}, /* Generic Gobi Modem device */
48 {DEVICE_G1K(0x05c6, 0x9002)}, /* Generic Gobi Modem device */
49 {DEVICE_G1K(0x05c6, 0x9202)}, /* Generic Gobi Modem device */
50 {DEVICE_G1K(0x05c6, 0x9203)}, /* Generic Gobi Modem device */
51 {DEVICE_G1K(0x05c6, 0x9222)}, /* Generic Gobi Modem device */
52 {DEVICE_G1K(0x05c6, 0x9008)}, /* Generic Gobi QDL device */
53 {DEVICE_G1K(0x05c6, 0x9009)}, /* Generic Gobi Modem device */
54 {DEVICE_G1K(0x05c6, 0x9201)}, /* Generic Gobi QDL device */
55 {DEVICE_G1K(0x05c6, 0x9221)}, /* Generic Gobi QDL device */
56 {DEVICE_G1K(0x05c6, 0x9231)}, /* Generic Gobi QDL device */
57 {DEVICE_G1K(0x1f45, 0x0001)}, /* Unknown Gobi QDL device */
58
59 /* Gobi 2000 devices */
60 {USB_DEVICE(0x1410, 0xa010)}, /* Novatel Gobi 2000 QDL device */
61 {USB_DEVICE(0x1410, 0xa011)}, /* Novatel Gobi 2000 QDL device */
62 {USB_DEVICE(0x1410, 0xa012)}, /* Novatel Gobi 2000 QDL device */
63 {USB_DEVICE(0x1410, 0xa013)}, /* Novatel Gobi 2000 QDL device */
64 {USB_DEVICE(0x1410, 0xa014)}, /* Novatel Gobi 2000 QDL device */
65 {USB_DEVICE(0x413c, 0x8185)}, /* Dell Gobi 2000 QDL device (N0218, VU936) */
66 {USB_DEVICE(0x413c, 0x8186)}, /* Dell Gobi 2000 Modem device (N0218, VU936) */
67 {USB_DEVICE(0x05c6, 0x9208)}, /* Generic Gobi 2000 QDL device */
68 {USB_DEVICE(0x05c6, 0x920b)}, /* Generic Gobi 2000 Modem device */
69 {USB_DEVICE(0x05c6, 0x9224)}, /* Sony Gobi 2000 QDL device (N0279, VU730) */
70 {USB_DEVICE(0x05c6, 0x9225)}, /* Sony Gobi 2000 Modem device (N0279, VU730) */
71 {USB_DEVICE(0x05c6, 0x9244)}, /* Samsung Gobi 2000 QDL device (VL176) */
72 {USB_DEVICE(0x05c6, 0x9245)}, /* Samsung Gobi 2000 Modem device (VL176) */
73 {USB_DEVICE(0x03f0, 0x241d)}, /* HP Gobi 2000 QDL device (VP412) */
74 {USB_DEVICE(0x03f0, 0x251d)}, /* HP Gobi 2000 Modem device (VP412) */
75 {USB_DEVICE(0x05c6, 0x9214)}, /* Acer Gobi 2000 QDL device (VP413) */
76 {USB_DEVICE(0x05c6, 0x9215)}, /* Acer Gobi 2000 Modem device (VP413) */
77 {USB_DEVICE(0x05c6, 0x9264)}, /* Asus Gobi 2000 QDL device (VR305) */
78 {USB_DEVICE(0x05c6, 0x9265)}, /* Asus Gobi 2000 Modem device (VR305) */
79 {USB_DEVICE(0x05c6, 0x9234)}, /* Top Global Gobi 2000 QDL device (VR306) */
80 {USB_DEVICE(0x05c6, 0x9235)}, /* Top Global Gobi 2000 Modem device (VR306) */
81 {USB_DEVICE(0x05c6, 0x9274)}, /* iRex Technologies Gobi 2000 QDL device (VR307) */
82 {USB_DEVICE(0x05c6, 0x9275)}, /* iRex Technologies Gobi 2000 Modem device (VR307) */
83 {USB_DEVICE(0x1199, 0x9000)}, /* Sierra Wireless Gobi 2000 QDL device (VT773) */
84 {USB_DEVICE(0x1199, 0x9001)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
85 {USB_DEVICE(0x1199, 0x9002)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
86 {USB_DEVICE(0x1199, 0x9003)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
87 {USB_DEVICE(0x1199, 0x9004)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
88 {USB_DEVICE(0x1199, 0x9005)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
89 {USB_DEVICE(0x1199, 0x9006)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
90 {USB_DEVICE(0x1199, 0x9007)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
91 {USB_DEVICE(0x1199, 0x9008)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
92 {USB_DEVICE(0x1199, 0x9009)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
93 {USB_DEVICE(0x1199, 0x900a)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
94 {USB_DEVICE(0x1199, 0x9011)}, /* Sierra Wireless Gobi 2000 Modem device (MC8305) */
95 {USB_DEVICE(0x16d8, 0x8001)}, /* CMDTech Gobi 2000 QDL device (VU922) */
96 {USB_DEVICE(0x16d8, 0x8002)}, /* CMDTech Gobi 2000 Modem device (VU922) */
97 {USB_DEVICE(0x05c6, 0x9204)}, /* Gobi 2000 QDL device */
98 {USB_DEVICE(0x05c6, 0x9205)}, /* Gobi 2000 Modem device */
99
100 /* Gobi 3000 devices */
101 {USB_DEVICE(0x03f0, 0x371d)}, /* HP un2430 Gobi 3000 QDL */
102 {USB_DEVICE(0x05c6, 0x920c)}, /* Gobi 3000 QDL */
103 {USB_DEVICE(0x05c6, 0x920d)}, /* Gobi 3000 Composite */
104 {USB_DEVICE(0x1410, 0xa020)}, /* Novatel Gobi 3000 QDL */
105 {USB_DEVICE(0x1410, 0xa021)}, /* Novatel Gobi 3000 Composite */
106 {USB_DEVICE(0x413c, 0x8193)}, /* Dell Gobi 3000 QDL */
107 {USB_DEVICE(0x413c, 0x8194)}, /* Dell Gobi 3000 Composite */
108 {USB_DEVICE(0x1199, 0x9010)}, /* Sierra Wireless Gobi 3000 QDL */
109 {USB_DEVICE(0x1199, 0x9012)}, /* Sierra Wireless Gobi 3000 QDL */
110 {USB_DEVICE(0x1199, 0x9013)}, /* Sierra Wireless Gobi 3000 Modem device (MC8355) */
111 {USB_DEVICE(0x1199, 0x9014)}, /* Sierra Wireless Gobi 3000 QDL */
112 {USB_DEVICE(0x1199, 0x9015)}, /* Sierra Wireless Gobi 3000 Modem device */
113 {USB_DEVICE(0x1199, 0x9018)}, /* Sierra Wireless Gobi 3000 QDL */
114 {USB_DEVICE(0x1199, 0x9019)}, /* Sierra Wireless Gobi 3000 Modem device */
115 {USB_DEVICE(0x12D1, 0x14F0)}, /* Sony Gobi 3000 QDL */
116 {USB_DEVICE(0x12D1, 0x14F1)}, /* Sony Gobi 3000 Composite */
117 { } /* Terminating entry */
118};
119MODULE_DEVICE_TABLE(usb, id_table);
120
121static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
122{
123 struct usb_wwan_intf_private *data;
124 struct usb_host_interface *intf = serial->interface->cur_altsetting;
125 struct device *dev = &serial->dev->dev;
126 int retval = -ENODEV;
127 __u8 nintf;
128 __u8 ifnum;
129 bool is_gobi1k = id->driver_info ? true : false;
130
131 dev_dbg(dev, "Is Gobi 1000 = %d\n", is_gobi1k);
132
133 nintf = serial->dev->actconfig->desc.bNumInterfaces;
134 dev_dbg(dev, "Num Interfaces = %d\n", nintf);
135 ifnum = intf->desc.bInterfaceNumber;
136 dev_dbg(dev, "This Interface = %d\n", ifnum);
137
138 data = kzalloc(sizeof(struct usb_wwan_intf_private),
139 GFP_KERNEL);
140 if (!data)
141 return -ENOMEM;
142
143 spin_lock_init(&data->susp_lock);
144
145 switch (nintf) {
146 case 1:
147 /* QDL mode */
148 /* Gobi 2000 has a single altsetting, older ones have two */
149 if (serial->interface->num_altsetting == 2)
150 intf = &serial->interface->altsetting[1];
151 else if (serial->interface->num_altsetting > 2)
152 break;
153
154 if (intf->desc.bNumEndpoints == 2 &&
155 usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) &&
156 usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) {
157 dev_dbg(dev, "QDL port found\n");
158
159 if (serial->interface->num_altsetting == 1) {
160 retval = 0; /* Success */
161 break;
162 }
163
164 retval = usb_set_interface(serial->dev, ifnum, 1);
165 if (retval < 0) {
166 dev_err(dev,
167 "Could not set interface, error %d\n",
168 retval);
169 retval = -ENODEV;
170 kfree(data);
171 }
172 }
173 break;
174
175 case 3:
176 case 4:
177 /* Composite mode; don't bind to the QMI/net interface as that
178 * gets handled by other drivers.
179 */
180
181 /* Gobi 1K USB layout:
182 * 0: serial port (doesn't respond)
183 * 1: serial port (doesn't respond)
184 * 2: AT-capable modem port
185 * 3: QMI/net
186 *
187 * Gobi 2K+ USB layout:
188 * 0: QMI/net
189 * 1: DM/DIAG (use libqcdm from ModemManager for communication)
190 * 2: AT-capable modem port
191 * 3: NMEA
192 */
193
194 if (ifnum == 1 && !is_gobi1k) {
195 dev_dbg(dev, "Gobi 2K+ DM/DIAG interface found\n");
196 retval = usb_set_interface(serial->dev, ifnum, 0);
197 if (retval < 0) {
198 dev_err(dev,
199 "Could not set interface, error %d\n",
200 retval);
201 retval = -ENODEV;
202 kfree(data);
203 }
204 } else if (ifnum == 2) {
205 dev_dbg(dev, "Modem port found\n");
206 retval = usb_set_interface(serial->dev, ifnum, 0);
207 if (retval < 0) {
208 dev_err(dev,
209 "Could not set interface, error %d\n",
210 retval);
211 retval = -ENODEV;
212 kfree(data);
213 }
214 } else if (ifnum==3 && !is_gobi1k) {
215 /*
216 * NMEA (serial line 9600 8N1)
217 * # echo "\$GPS_START" > /dev/ttyUSBx
218 * # echo "\$GPS_STOP" > /dev/ttyUSBx
219 */
220 dev_dbg(dev, "Gobi 2K+ NMEA GPS interface found\n");
221 retval = usb_set_interface(serial->dev, ifnum, 0);
222 if (retval < 0) {
223 dev_err(dev,
224 "Could not set interface, error %d\n",
225 retval);
226 retval = -ENODEV;
227 kfree(data);
228 }
229 }
230 break;
231
232 default:
233 dev_err(dev, "unknown number of interfaces: %d\n", nintf);
234 kfree(data);
235 retval = -ENODEV;
236 }
237
238 /* Set serial->private if not returning -ENODEV */
239 if (retval != -ENODEV)
240 usb_set_serial_data(serial, data);
241 return retval;
242}
243
244static void qc_release(struct usb_serial *serial)
245{
246 struct usb_wwan_intf_private *priv = usb_get_serial_data(serial);
247
248 /* Call usb_wwan release & free the private data allocated in qcprobe */
249 usb_wwan_release(serial);
250 usb_set_serial_data(serial, NULL);
251 kfree(priv);
252}
253
254static struct usb_serial_driver qcdevice = {
255 .driver = {
256 .owner = THIS_MODULE,
257 .name = "qcserial",
258 },
259 .description = "Qualcomm USB modem",
260 .id_table = id_table,
261 .num_ports = 1,
262 .probe = qcprobe,
263 .open = usb_wwan_open,
264 .close = usb_wwan_close,
265 .write = usb_wwan_write,
266 .write_room = usb_wwan_write_room,
267 .chars_in_buffer = usb_wwan_chars_in_buffer,
268 .attach = usb_wwan_startup,
269 .disconnect = usb_wwan_disconnect,
270 .release = qc_release,
271#ifdef CONFIG_PM
272 .suspend = usb_wwan_suspend,
273 .resume = usb_wwan_resume,
274#endif
275};
276
277static struct usb_serial_driver * const serial_drivers[] = {
278 &qcdevice, NULL
279};
280
281module_usb_serial_driver(serial_drivers, id_table);
282
283MODULE_AUTHOR(DRIVER_AUTHOR);
284MODULE_DESCRIPTION(DRIVER_DESC);
285MODULE_LICENSE("GPL v2");
286
287module_param(debug, bool, S_IRUGO | S_IWUSR);
288MODULE_PARM_DESC(debug, "Debug enabled or not");