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
25 static bool debug;
26
27 static const struct usb_device_id id_table[] = {
28 {USB_DEVICE(0x05c6, 0x9211)}, /* Acer Gobi QDL device */
29 {USB_DEVICE(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */
30 {USB_DEVICE(0x03f0, 0x1f1d)}, /* HP un2400 Gobi Modem Device */
31 {USB_DEVICE(0x03f0, 0x201d)}, /* HP un2400 Gobi QDL Device */
32 {USB_DEVICE(0x03f0, 0x371d)}, /* HP un2430 Mobile Broadband Module */
33 {USB_DEVICE(0x04da, 0x250d)}, /* Panasonic Gobi Modem device */
34 {USB_DEVICE(0x04da, 0x250c)}, /* Panasonic Gobi QDL device */
35 {USB_DEVICE(0x413c, 0x8172)}, /* Dell Gobi Modem device */
36 {USB_DEVICE(0x413c, 0x8171)}, /* Dell Gobi QDL device */
37 {USB_DEVICE(0x1410, 0xa001)}, /* Novatel Gobi Modem device */
38 {USB_DEVICE(0x1410, 0xa008)}, /* Novatel Gobi QDL device */
39 {USB_DEVICE(0x1410, 0xa010)}, /* Novatel Gobi QDL device */
40 {USB_DEVICE(0x1410, 0xa011)}, /* Novatel Gobi QDL device */
41 {USB_DEVICE(0x1410, 0xa012)}, /* Novatel Gobi QDL device */
42 {USB_DEVICE(0x1410, 0xa013)}, /* Novatel Gobi QDL device */
43 {USB_DEVICE(0x1410, 0xa014)}, /* Novatel Gobi QDL device */
44 {USB_DEVICE(0x0b05, 0x1776)}, /* Asus Gobi Modem device */
45 {USB_DEVICE(0x0b05, 0x1774)}, /* Asus Gobi QDL device */
46 {USB_DEVICE(0x19d2, 0xfff3)}, /* ONDA Gobi Modem device */
47 {USB_DEVICE(0x19d2, 0xfff2)}, /* ONDA Gobi QDL device */
48 {USB_DEVICE(0x1557, 0x0a80)}, /* OQO Gobi QDL device */
49 {USB_DEVICE(0x05c6, 0x9001)}, /* Generic Gobi Modem device */
50 {USB_DEVICE(0x05c6, 0x9002)}, /* Generic Gobi Modem device */
51 {USB_DEVICE(0x05c6, 0x9202)}, /* Generic Gobi Modem device */
52 {USB_DEVICE(0x05c6, 0x9203)}, /* Generic Gobi Modem device */
53 {USB_DEVICE(0x05c6, 0x9222)}, /* Generic Gobi Modem device */
54 {USB_DEVICE(0x05c6, 0x9008)}, /* Generic Gobi QDL device */
55 {USB_DEVICE(0x05c6, 0x9009)}, /* Generic Gobi Modem device */
56 {USB_DEVICE(0x05c6, 0x9201)}, /* Generic Gobi QDL device */
57 {USB_DEVICE(0x05c6, 0x9221)}, /* Generic Gobi QDL device */
58 {USB_DEVICE(0x05c6, 0x9231)}, /* Generic Gobi QDL device */
59 {USB_DEVICE(0x1f45, 0x0001)}, /* Unknown Gobi QDL device */
60 {USB_DEVICE(0x413c, 0x8185)}, /* Dell Gobi 2000 QDL device (N0218, VU936) */
61 {USB_DEVICE(0x413c, 0x8186)}, /* Dell Gobi 2000 Modem device (N0218, VU936) */
62 {USB_DEVICE(0x05c6, 0x9208)}, /* Generic Gobi 2000 QDL device */
63 {USB_DEVICE(0x05c6, 0x920b)}, /* Generic Gobi 2000 Modem device */
64 {USB_DEVICE(0x05c6, 0x9224)}, /* Sony Gobi 2000 QDL device (N0279, VU730) */
65 {USB_DEVICE(0x05c6, 0x9225)}, /* Sony Gobi 2000 Modem device (N0279, VU730) */
66 {USB_DEVICE(0x05c6, 0x9244)}, /* Samsung Gobi 2000 QDL device (VL176) */
67 {USB_DEVICE(0x05c6, 0x9245)}, /* Samsung Gobi 2000 Modem device (VL176) */
68 {USB_DEVICE(0x03f0, 0x241d)}, /* HP Gobi 2000 QDL device (VP412) */
69 {USB_DEVICE(0x03f0, 0x251d)}, /* HP Gobi 2000 Modem device (VP412) */
70 {USB_DEVICE(0x05c6, 0x9214)}, /* Acer Gobi 2000 QDL device (VP413) */
71 {USB_DEVICE(0x05c6, 0x9215)}, /* Acer Gobi 2000 Modem device (VP413) */
72 {USB_DEVICE(0x05c6, 0x9264)}, /* Asus Gobi 2000 QDL device (VR305) */
73 {USB_DEVICE(0x05c6, 0x9265)}, /* Asus Gobi 2000 Modem device (VR305) */
74 {USB_DEVICE(0x05c6, 0x9234)}, /* Top Global Gobi 2000 QDL device (VR306) */
75 {USB_DEVICE(0x05c6, 0x9235)}, /* Top Global Gobi 2000 Modem device (VR306) */
76 {USB_DEVICE(0x05c6, 0x9274)}, /* iRex Technologies Gobi 2000 QDL device (VR307) */
77 {USB_DEVICE(0x05c6, 0x9275)}, /* iRex Technologies Gobi 2000 Modem device (VR307) */
78 {USB_DEVICE(0x1199, 0x9000)}, /* Sierra Wireless Gobi 2000 QDL device (VT773) */
79 {USB_DEVICE(0x1199, 0x9001)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
80 {USB_DEVICE(0x1199, 0x9002)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
81 {USB_DEVICE(0x1199, 0x9003)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
82 {USB_DEVICE(0x1199, 0x9004)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
83 {USB_DEVICE(0x1199, 0x9005)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
84 {USB_DEVICE(0x1199, 0x9006)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
85 {USB_DEVICE(0x1199, 0x9007)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
86 {USB_DEVICE(0x1199, 0x9008)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
87 {USB_DEVICE(0x1199, 0x9009)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
88 {USB_DEVICE(0x1199, 0x900a)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
89 {USB_DEVICE(0x1199, 0x9011)}, /* Sierra Wireless Gobi 2000 Modem device (MC8305) */
90 {USB_DEVICE(0x16d8, 0x8001)}, /* CMDTech Gobi 2000 QDL device (VU922) */
91 {USB_DEVICE(0x16d8, 0x8002)}, /* CMDTech Gobi 2000 Modem device (VU922) */
92 {USB_DEVICE(0x05c6, 0x9204)}, /* Gobi 2000 QDL device */
93 {USB_DEVICE(0x05c6, 0x9205)}, /* Gobi 2000 Modem device */
94
95 {USB_DEVICE(0x05c6, 0x920c)}, /* Gobi 3000 QDL */
96 {USB_DEVICE(0x05c6, 0x920d)}, /* Gobi 3000 Composite */
97 {USB_DEVICE(0x1410, 0xa020)}, /* Novatel Gobi 3000 QDL */
98 {USB_DEVICE(0x1410, 0xa021)}, /* Novatel Gobi 3000 Composite */
99 {USB_DEVICE(0x413c, 0x8193)}, /* Dell Gobi 3000 QDL */
100 {USB_DEVICE(0x413c, 0x8194)}, /* Dell Gobi 3000 Composite */
101 {USB_DEVICE(0x1199, 0x9013)}, /* Sierra Wireless Gobi 3000 Modem device (MC8355) */
102 {USB_DEVICE(0x12D1, 0x14F0)}, /* Sony Gobi 3000 QDL */
103 {USB_DEVICE(0x12D1, 0x14F1)}, /* Sony Gobi 3000 Composite */
104 { } /* Terminating entry */
105 };
106 MODULE_DEVICE_TABLE(usb, id_table);
107
108 static struct usb_driver qcdriver = {
109 .name = "qcserial",
110 .probe = usb_serial_probe,
111 .disconnect = usb_serial_disconnect,
112 .id_table = id_table,
113 .suspend = usb_serial_suspend,
114 .resume = usb_serial_resume,
115 .supports_autosuspend = true,
116 };
117
qcprobe(struct usb_serial * serial,const struct usb_device_id * id)118 static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
119 {
120 struct usb_wwan_intf_private *data;
121 struct usb_host_interface *intf = serial->interface->cur_altsetting;
122 int retval = -ENODEV;
123 __u8 nintf;
124 __u8 ifnum;
125
126 dbg("%s", __func__);
127
128 nintf = serial->dev->actconfig->desc.bNumInterfaces;
129 dbg("Num Interfaces = %d", nintf);
130 ifnum = intf->desc.bInterfaceNumber;
131 dbg("This Interface = %d", ifnum);
132
133 data = kzalloc(sizeof(struct usb_wwan_intf_private),
134 GFP_KERNEL);
135 if (!data)
136 return -ENOMEM;
137
138 spin_lock_init(&data->susp_lock);
139
140 switch (nintf) {
141 case 1:
142 /* QDL mode */
143 /* Gobi 2000 has a single altsetting, older ones have two */
144 if (serial->interface->num_altsetting == 2)
145 intf = &serial->interface->altsetting[1];
146 else if (serial->interface->num_altsetting > 2)
147 break;
148
149 if (intf->desc.bNumEndpoints == 2 &&
150 usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) &&
151 usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) {
152 dbg("QDL port found");
153
154 if (serial->interface->num_altsetting == 1) {
155 retval = 0; /* Success */
156 break;
157 }
158
159 retval = usb_set_interface(serial->dev, ifnum, 1);
160 if (retval < 0) {
161 dev_err(&serial->dev->dev,
162 "Could not set interface, error %d\n",
163 retval);
164 retval = -ENODEV;
165 kfree(data);
166 }
167 }
168 break;
169
170 case 3:
171 case 4:
172 /* Composite mode */
173 /* ifnum == 0 is a broadband network adapter */
174 if (ifnum == 1) {
175 /*
176 * Diagnostics Monitor (serial line 9600 8N1)
177 * Qualcomm DM protocol
178 * use "libqcdm" (ModemManager) for communication
179 */
180 dbg("Diagnostics Monitor found");
181 retval = usb_set_interface(serial->dev, ifnum, 0);
182 if (retval < 0) {
183 dev_err(&serial->dev->dev,
184 "Could not set interface, error %d\n",
185 retval);
186 retval = -ENODEV;
187 kfree(data);
188 }
189 } else if (ifnum == 2) {
190 dbg("Modem port 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 } else if (ifnum==3) {
200 /*
201 * NMEA (serial line 9600 8N1)
202 * # echo "\$GPS_START" > /dev/ttyUSBx
203 * # echo "\$GPS_STOP" > /dev/ttyUSBx
204 */
205 dbg("NMEA GPS interface found");
206 retval = usb_set_interface(serial->dev, ifnum, 0);
207 if (retval < 0) {
208 dev_err(&serial->dev->dev,
209 "Could not set interface, error %d\n",
210 retval);
211 retval = -ENODEV;
212 kfree(data);
213 }
214 }
215 break;
216
217 default:
218 dev_err(&serial->dev->dev,
219 "unknown number of interfaces: %d\n", nintf);
220 kfree(data);
221 retval = -ENODEV;
222 }
223
224 /* Set serial->private if not returning -ENODEV */
225 if (retval != -ENODEV)
226 usb_set_serial_data(serial, data);
227 return retval;
228 }
229
qc_release(struct usb_serial * serial)230 static void qc_release(struct usb_serial *serial)
231 {
232 struct usb_wwan_intf_private *priv = usb_get_serial_data(serial);
233
234 dbg("%s", __func__);
235
236 /* Call usb_wwan release & free the private data allocated in qcprobe */
237 usb_wwan_release(serial);
238 usb_set_serial_data(serial, NULL);
239 kfree(priv);
240 }
241
242 static struct usb_serial_driver qcdevice = {
243 .driver = {
244 .owner = THIS_MODULE,
245 .name = "qcserial",
246 },
247 .description = "Qualcomm USB modem",
248 .id_table = id_table,
249 .usb_driver = &qcdriver,
250 .num_ports = 1,
251 .probe = qcprobe,
252 .open = usb_wwan_open,
253 .close = usb_wwan_close,
254 .write = usb_wwan_write,
255 .write_room = usb_wwan_write_room,
256 .chars_in_buffer = usb_wwan_chars_in_buffer,
257 .attach = usb_wwan_startup,
258 .disconnect = usb_wwan_disconnect,
259 .release = qc_release,
260 #ifdef CONFIG_PM
261 .suspend = usb_wwan_suspend,
262 .resume = usb_wwan_resume,
263 #endif
264 };
265
qcinit(void)266 static int __init qcinit(void)
267 {
268 int retval;
269
270 retval = usb_serial_register(&qcdevice);
271 if (retval)
272 return retval;
273
274 retval = usb_register(&qcdriver);
275 if (retval) {
276 usb_serial_deregister(&qcdevice);
277 return retval;
278 }
279
280 return 0;
281 }
282
qcexit(void)283 static void __exit qcexit(void)
284 {
285 usb_deregister(&qcdriver);
286 usb_serial_deregister(&qcdevice);
287 }
288
289 module_init(qcinit);
290 module_exit(qcexit);
291
292 MODULE_AUTHOR(DRIVER_AUTHOR);
293 MODULE_DESCRIPTION(DRIVER_DESC);
294 MODULE_LICENSE("GPL v2");
295
296 module_param(debug, bool, S_IRUGO | S_IWUSR);
297 MODULE_PARM_DESC(debug, "Debug enabled or not");
298