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Linux/drivers/usb/serial/qcserial.c

  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 /* standard device layouts supported by this driver */
 26 enum qcserial_layouts {
 27         QCSERIAL_G2K = 0,       /* Gobi 2000 */
 28         QCSERIAL_G1K = 1,       /* Gobi 1000 */
 29         QCSERIAL_SWI = 2,       /* Sierra Wireless */
 30 };
 31 
 32 #define DEVICE_G1K(v, p) \
 33         USB_DEVICE(v, p), .driver_info = QCSERIAL_G1K
 34 #define DEVICE_SWI(v, p) \
 35         USB_DEVICE(v, p), .driver_info = QCSERIAL_SWI
 36 
 37 static const struct usb_device_id id_table[] = {
 38         /* Gobi 1000 devices */
 39         {DEVICE_G1K(0x05c6, 0x9211)},   /* Acer Gobi QDL device */
 40         {DEVICE_G1K(0x05c6, 0x9212)},   /* Acer Gobi Modem Device */
 41         {DEVICE_G1K(0x03f0, 0x1f1d)},   /* HP un2400 Gobi Modem Device */
 42         {DEVICE_G1K(0x03f0, 0x201d)},   /* HP un2400 Gobi QDL Device */
 43         {DEVICE_G1K(0x04da, 0x250d)},   /* Panasonic Gobi Modem device */
 44         {DEVICE_G1K(0x04da, 0x250c)},   /* Panasonic Gobi QDL device */
 45         {DEVICE_G1K(0x413c, 0x8172)},   /* Dell Gobi Modem device */
 46         {DEVICE_G1K(0x413c, 0x8171)},   /* Dell Gobi QDL device */
 47         {DEVICE_G1K(0x1410, 0xa001)},   /* Novatel/Verizon USB-1000 */
 48         {DEVICE_G1K(0x1410, 0xa002)},   /* Novatel Gobi Modem device */
 49         {DEVICE_G1K(0x1410, 0xa003)},   /* Novatel Gobi Modem device */
 50         {DEVICE_G1K(0x1410, 0xa004)},   /* Novatel Gobi Modem device */
 51         {DEVICE_G1K(0x1410, 0xa005)},   /* Novatel Gobi Modem device */
 52         {DEVICE_G1K(0x1410, 0xa006)},   /* Novatel Gobi Modem device */
 53         {DEVICE_G1K(0x1410, 0xa007)},   /* Novatel Gobi Modem device */
 54         {DEVICE_G1K(0x1410, 0xa008)},   /* Novatel Gobi QDL device */
 55         {DEVICE_G1K(0x0b05, 0x1776)},   /* Asus Gobi Modem device */
 56         {DEVICE_G1K(0x0b05, 0x1774)},   /* Asus Gobi QDL device */
 57         {DEVICE_G1K(0x19d2, 0xfff3)},   /* ONDA Gobi Modem device */
 58         {DEVICE_G1K(0x19d2, 0xfff2)},   /* ONDA Gobi QDL device */
 59         {DEVICE_G1K(0x1557, 0x0a80)},   /* OQO Gobi QDL device */
 60         {DEVICE_G1K(0x05c6, 0x9001)},   /* Generic Gobi Modem device */
 61         {DEVICE_G1K(0x05c6, 0x9002)},   /* Generic Gobi Modem device */
 62         {DEVICE_G1K(0x05c6, 0x9202)},   /* Generic Gobi Modem device */
 63         {DEVICE_G1K(0x05c6, 0x9203)},   /* Generic Gobi Modem device */
 64         {DEVICE_G1K(0x05c6, 0x9222)},   /* Generic Gobi Modem device */
 65         {DEVICE_G1K(0x05c6, 0x9008)},   /* Generic Gobi QDL device */
 66         {DEVICE_G1K(0x05c6, 0x9009)},   /* Generic Gobi Modem device */
 67         {DEVICE_G1K(0x05c6, 0x9201)},   /* Generic Gobi QDL device */
 68         {DEVICE_G1K(0x05c6, 0x9221)},   /* Generic Gobi QDL device */
 69         {DEVICE_G1K(0x05c6, 0x9231)},   /* Generic Gobi QDL device */
 70         {DEVICE_G1K(0x1f45, 0x0001)},   /* Unknown Gobi QDL device */
 71         {DEVICE_G1K(0x1bc7, 0x900e)},   /* Telit Gobi QDL device */
 72 
 73         /* Gobi 2000 devices */
 74         {USB_DEVICE(0x1410, 0xa010)},   /* Novatel Gobi 2000 QDL device */
 75         {USB_DEVICE(0x1410, 0xa011)},   /* Novatel Gobi 2000 QDL device */
 76         {USB_DEVICE(0x1410, 0xa012)},   /* Novatel Gobi 2000 QDL device */
 77         {USB_DEVICE(0x1410, 0xa013)},   /* Novatel Gobi 2000 QDL device */
 78         {USB_DEVICE(0x1410, 0xa014)},   /* Novatel Gobi 2000 QDL device */
 79         {USB_DEVICE(0x413c, 0x8185)},   /* Dell Gobi 2000 QDL device (N0218, VU936) */
 80         {USB_DEVICE(0x413c, 0x8186)},   /* Dell Gobi 2000 Modem device (N0218, VU936) */
 81         {USB_DEVICE(0x05c6, 0x9208)},   /* Generic Gobi 2000 QDL device */
 82         {USB_DEVICE(0x05c6, 0x920b)},   /* Generic Gobi 2000 Modem device */
 83         {USB_DEVICE(0x05c6, 0x9224)},   /* Sony Gobi 2000 QDL device (N0279, VU730) */
 84         {USB_DEVICE(0x05c6, 0x9225)},   /* Sony Gobi 2000 Modem device (N0279, VU730) */
 85         {USB_DEVICE(0x05c6, 0x9244)},   /* Samsung Gobi 2000 QDL device (VL176) */
 86         {USB_DEVICE(0x05c6, 0x9245)},   /* Samsung Gobi 2000 Modem device (VL176) */
 87         {USB_DEVICE(0x03f0, 0x241d)},   /* HP Gobi 2000 QDL device (VP412) */
 88         {USB_DEVICE(0x03f0, 0x251d)},   /* HP Gobi 2000 Modem device (VP412) */
 89         {USB_DEVICE(0x05c6, 0x9214)},   /* Acer Gobi 2000 QDL device (VP413) */
 90         {USB_DEVICE(0x05c6, 0x9215)},   /* Acer Gobi 2000 Modem device (VP413) */
 91         {USB_DEVICE(0x05c6, 0x9264)},   /* Asus Gobi 2000 QDL device (VR305) */
 92         {USB_DEVICE(0x05c6, 0x9265)},   /* Asus Gobi 2000 Modem device (VR305) */
 93         {USB_DEVICE(0x05c6, 0x9234)},   /* Top Global Gobi 2000 QDL device (VR306) */
 94         {USB_DEVICE(0x05c6, 0x9235)},   /* Top Global Gobi 2000 Modem device (VR306) */
 95         {USB_DEVICE(0x05c6, 0x9274)},   /* iRex Technologies Gobi 2000 QDL device (VR307) */
 96         {USB_DEVICE(0x05c6, 0x9275)},   /* iRex Technologies Gobi 2000 Modem device (VR307) */
 97         {USB_DEVICE(0x1199, 0x9000)},   /* Sierra Wireless Gobi 2000 QDL device (VT773) */
 98         {USB_DEVICE(0x1199, 0x9001)},   /* Sierra Wireless Gobi 2000 Modem device (VT773) */
 99         {USB_DEVICE(0x1199, 0x9002)},   /* Sierra Wireless Gobi 2000 Modem device (VT773) */
100         {USB_DEVICE(0x1199, 0x9003)},   /* Sierra Wireless Gobi 2000 Modem device (VT773) */
101         {USB_DEVICE(0x1199, 0x9004)},   /* Sierra Wireless Gobi 2000 Modem device (VT773) */
102         {USB_DEVICE(0x1199, 0x9005)},   /* Sierra Wireless Gobi 2000 Modem device (VT773) */
103         {USB_DEVICE(0x1199, 0x9006)},   /* Sierra Wireless Gobi 2000 Modem device (VT773) */
104         {USB_DEVICE(0x1199, 0x9007)},   /* Sierra Wireless Gobi 2000 Modem device (VT773) */
105         {USB_DEVICE(0x1199, 0x9008)},   /* Sierra Wireless Gobi 2000 Modem device (VT773) */
106         {USB_DEVICE(0x1199, 0x9009)},   /* Sierra Wireless Gobi 2000 Modem device (VT773) */
107         {USB_DEVICE(0x1199, 0x900a)},   /* Sierra Wireless Gobi 2000 Modem device (VT773) */
108         {USB_DEVICE(0x1199, 0x9011)},   /* Sierra Wireless Gobi 2000 Modem device (MC8305) */
109         {USB_DEVICE(0x16d8, 0x8001)},   /* CMDTech Gobi 2000 QDL device (VU922) */
110         {USB_DEVICE(0x16d8, 0x8002)},   /* CMDTech Gobi 2000 Modem device (VU922) */
111         {USB_DEVICE(0x05c6, 0x9204)},   /* Gobi 2000 QDL device */
112         {USB_DEVICE(0x05c6, 0x9205)},   /* Gobi 2000 Modem device */
113 
114         /* Gobi 3000 devices */
115         {USB_DEVICE(0x03f0, 0x371d)},   /* HP un2430 Gobi 3000 QDL */
116         {USB_DEVICE(0x05c6, 0x920c)},   /* Gobi 3000 QDL */
117         {USB_DEVICE(0x05c6, 0x920d)},   /* Gobi 3000 Composite */
118         {USB_DEVICE(0x1410, 0xa020)},   /* Novatel Gobi 3000 QDL */
119         {USB_DEVICE(0x1410, 0xa021)},   /* Novatel Gobi 3000 Composite */
120         {USB_DEVICE(0x413c, 0x8193)},   /* Dell Gobi 3000 QDL */
121         {USB_DEVICE(0x413c, 0x8194)},   /* Dell Gobi 3000 Composite */
122         {USB_DEVICE(0x1199, 0x68a4)},   /* Sierra Wireless QDL */
123         {USB_DEVICE(0x1199, 0x68a5)},   /* Sierra Wireless Modem */
124         {USB_DEVICE(0x1199, 0x68a8)},   /* Sierra Wireless QDL */
125         {USB_DEVICE(0x1199, 0x68a9)},   /* Sierra Wireless Modem */
126         {USB_DEVICE(0x1199, 0x9010)},   /* Sierra Wireless Gobi 3000 QDL */
127         {USB_DEVICE(0x1199, 0x9012)},   /* Sierra Wireless Gobi 3000 QDL */
128         {USB_DEVICE(0x1199, 0x9013)},   /* Sierra Wireless Gobi 3000 Modem device (MC8355) */
129         {USB_DEVICE(0x1199, 0x9014)},   /* Sierra Wireless Gobi 3000 QDL */
130         {USB_DEVICE(0x1199, 0x9015)},   /* Sierra Wireless Gobi 3000 Modem device */
131         {USB_DEVICE(0x1199, 0x9018)},   /* Sierra Wireless Gobi 3000 QDL */
132         {USB_DEVICE(0x1199, 0x9019)},   /* Sierra Wireless Gobi 3000 Modem device */
133         {USB_DEVICE(0x1199, 0x901b)},   /* Sierra Wireless MC7770 */
134         {USB_DEVICE(0x12D1, 0x14F0)},   /* Sony Gobi 3000 QDL */
135         {USB_DEVICE(0x12D1, 0x14F1)},   /* Sony Gobi 3000 Composite */
136         {USB_DEVICE(0x0AF0, 0x8120)},   /* Option GTM681W */
137 
138         /* non-Gobi Sierra Wireless devices */
139         {DEVICE_SWI(0x0f3d, 0x68a2)},   /* Sierra Wireless MC7700 */
140         {DEVICE_SWI(0x114f, 0x68a2)},   /* Sierra Wireless MC7750 */
141         {DEVICE_SWI(0x1199, 0x68a2)},   /* Sierra Wireless MC7710 */
142         {DEVICE_SWI(0x1199, 0x68c0)},   /* Sierra Wireless MC73xx */
143         {DEVICE_SWI(0x1199, 0x901c)},   /* Sierra Wireless EM7700 */
144         {DEVICE_SWI(0x1199, 0x901f)},   /* Sierra Wireless EM7355 */
145         {DEVICE_SWI(0x1199, 0x9040)},   /* Sierra Wireless Modem */
146         {DEVICE_SWI(0x1199, 0x9041)},   /* Sierra Wireless MC7305/MC7355 */
147         {DEVICE_SWI(0x1199, 0x9051)},   /* Netgear AirCard 340U */
148         {DEVICE_SWI(0x1199, 0x9053)},   /* Sierra Wireless Modem */
149         {DEVICE_SWI(0x1199, 0x9054)},   /* Sierra Wireless Modem */
150         {DEVICE_SWI(0x1199, 0x9055)},   /* Netgear AirCard 341U */
151         {DEVICE_SWI(0x1199, 0x9056)},   /* Sierra Wireless Modem */
152         {DEVICE_SWI(0x1199, 0x9060)},   /* Sierra Wireless Modem */
153         {DEVICE_SWI(0x1199, 0x9061)},   /* Sierra Wireless Modem */
154         {DEVICE_SWI(0x413c, 0x81a2)},   /* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card */
155         {DEVICE_SWI(0x413c, 0x81a3)},   /* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card */
156         {DEVICE_SWI(0x413c, 0x81a4)},   /* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card */
157         {DEVICE_SWI(0x413c, 0x81a8)},   /* Dell Wireless 5808 Gobi(TM) 4G LTE Mobile Broadband Card */
158         {DEVICE_SWI(0x413c, 0x81a9)},   /* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card */
159 
160         { }                             /* Terminating entry */
161 };
162 MODULE_DEVICE_TABLE(usb, id_table);
163 
164 static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
165 {
166         struct usb_host_interface *intf = serial->interface->cur_altsetting;
167         struct device *dev = &serial->dev->dev;
168         int retval = -ENODEV;
169         __u8 nintf;
170         __u8 ifnum;
171         int altsetting = -1;
172 
173         nintf = serial->dev->actconfig->desc.bNumInterfaces;
174         dev_dbg(dev, "Num Interfaces = %d\n", nintf);
175         ifnum = intf->desc.bInterfaceNumber;
176         dev_dbg(dev, "This Interface = %d\n", ifnum);
177 
178         if (nintf == 1) {
179                 /* QDL mode */
180                 /* Gobi 2000 has a single altsetting, older ones have two */
181                 if (serial->interface->num_altsetting == 2)
182                         intf = &serial->interface->altsetting[1];
183                 else if (serial->interface->num_altsetting > 2)
184                         goto done;
185 
186                 if (intf->desc.bNumEndpoints == 2 &&
187                     usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) &&
188                     usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) {
189                         dev_dbg(dev, "QDL port found\n");
190 
191                         if (serial->interface->num_altsetting == 1)
192                                 retval = 0; /* Success */
193                         else
194                                 altsetting = 1;
195                 }
196                 goto done;
197 
198         }
199 
200         /* default to enabling interface */
201         altsetting = 0;
202 
203         /*
204          * Composite mode; don't bind to the QMI/net interface as that
205          * gets handled by other drivers.
206          */
207 
208         switch (id->driver_info) {
209         case QCSERIAL_G1K:
210                 /*
211                  * Gobi 1K USB layout:
212                  * 0: DM/DIAG (use libqcdm from ModemManager for communication)
213                  * 1: serial port (doesn't respond)
214                  * 2: AT-capable modem port
215                  * 3: QMI/net
216                  */
217                 if (nintf < 3 || nintf > 4) {
218                         dev_err(dev, "unknown number of interfaces: %d\n", nintf);
219                         altsetting = -1;
220                         goto done;
221                 }
222 
223                 if (ifnum == 0) {
224                         dev_dbg(dev, "Gobi 1K DM/DIAG interface found\n");
225                         altsetting = 1;
226                 } else if (ifnum == 2)
227                         dev_dbg(dev, "Modem port found\n");
228                 else
229                         altsetting = -1;
230                 break;
231         case QCSERIAL_G2K:
232                 /*
233                  * Gobi 2K+ USB layout:
234                  * 0: QMI/net
235                  * 1: DM/DIAG (use libqcdm from ModemManager for communication)
236                  * 2: AT-capable modem port
237                  * 3: NMEA
238                  */
239                 if (nintf < 3 || nintf > 4) {
240                         dev_err(dev, "unknown number of interfaces: %d\n", nintf);
241                         altsetting = -1;
242                         goto done;
243                 }
244 
245                 switch (ifnum) {
246                 case 0:
247                         /* Don't claim the QMI/net interface */
248                         altsetting = -1;
249                         break;
250                 case 1:
251                         dev_dbg(dev, "Gobi 2K+ DM/DIAG interface found\n");
252                         break;
253                 case 2:
254                         dev_dbg(dev, "Modem port found\n");
255                         break;
256                 case 3:
257                         /*
258                          * NMEA (serial line 9600 8N1)
259                          * # echo "\$GPS_START" > /dev/ttyUSBx
260                          * # echo "\$GPS_STOP"  > /dev/ttyUSBx
261                          */
262                         dev_dbg(dev, "Gobi 2K+ NMEA GPS interface found\n");
263                         break;
264                 }
265                 break;
266         case QCSERIAL_SWI:
267                 /*
268                  * Sierra Wireless layout:
269                  * 0: DM/DIAG (use libqcdm from ModemManager for communication)
270                  * 2: NMEA
271                  * 3: AT-capable modem port
272                  * 8: QMI/net
273                  */
274                 switch (ifnum) {
275                 case 0:
276                         dev_dbg(dev, "DM/DIAG interface found\n");
277                         break;
278                 case 2:
279                         dev_dbg(dev, "NMEA GPS interface found\n");
280                         break;
281                 case 3:
282                         dev_dbg(dev, "Modem port found\n");
283                         break;
284                 default:
285                         /* don't claim any unsupported interface */
286                         altsetting = -1;
287                         break;
288                 }
289                 break;
290         default:
291                 dev_err(dev, "unsupported device layout type: %lu\n",
292                         id->driver_info);
293                 break;
294         }
295 
296 done:
297         if (altsetting >= 0) {
298                 retval = usb_set_interface(serial->dev, ifnum, altsetting);
299                 if (retval < 0) {
300                         dev_err(dev,
301                                 "Could not set interface, error %d\n",
302                                 retval);
303                         retval = -ENODEV;
304                 }
305         }
306 
307         return retval;
308 }
309 
310 static int qc_attach(struct usb_serial *serial)
311 {
312         struct usb_wwan_intf_private *data;
313 
314         data = kzalloc(sizeof(*data), GFP_KERNEL);
315         if (!data)
316                 return -ENOMEM;
317 
318         spin_lock_init(&data->susp_lock);
319 
320         usb_set_serial_data(serial, data);
321 
322         return 0;
323 }
324 
325 static void qc_release(struct usb_serial *serial)
326 {
327         struct usb_wwan_intf_private *priv = usb_get_serial_data(serial);
328 
329         usb_set_serial_data(serial, NULL);
330         kfree(priv);
331 }
332 
333 static struct usb_serial_driver qcdevice = {
334         .driver = {
335                 .owner     = THIS_MODULE,
336                 .name      = "qcserial",
337         },
338         .description         = "Qualcomm USB modem",
339         .id_table            = id_table,
340         .num_ports           = 1,
341         .probe               = qcprobe,
342         .open                = usb_wwan_open,
343         .close               = usb_wwan_close,
344         .write               = usb_wwan_write,
345         .write_room          = usb_wwan_write_room,
346         .chars_in_buffer     = usb_wwan_chars_in_buffer,
347         .attach              = qc_attach,
348         .release             = qc_release,
349         .port_probe          = usb_wwan_port_probe,
350         .port_remove         = usb_wwan_port_remove,
351 #ifdef CONFIG_PM
352         .suspend             = usb_wwan_suspend,
353         .resume              = usb_wwan_resume,
354 #endif
355 };
356 
357 static struct usb_serial_driver * const serial_drivers[] = {
358         &qcdevice, NULL
359 };
360 
361 module_usb_serial_driver(serial_drivers, id_table);
362 
363 MODULE_AUTHOR(DRIVER_AUTHOR);
364 MODULE_DESCRIPTION(DRIVER_DESC);
365 MODULE_LICENSE("GPL v2");
366 

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