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9
10#include <linux/tty.h>
11#include <linux/tty_flip.h>
12#include <linux/module.h>
13#include <linux/usb.h>
14#include <linux/usb/serial.h>
15#include <linux/slab.h>
16#include "usb-wwan.h"
17
18#define DRIVER_AUTHOR "Qualcomm Inc"
19#define DRIVER_DESC "Qualcomm USB Serial driver"
20
21#define QUECTEL_EC20_PID 0x9215
22
23
24enum qcserial_layouts {
25 QCSERIAL_G2K = 0,
26 QCSERIAL_G1K = 1,
27 QCSERIAL_SWI = 2,
28 QCSERIAL_HWI = 3,
29};
30
31#define DEVICE_G1K(v, p) \
32 USB_DEVICE(v, p), .driver_info = QCSERIAL_G1K
33#define DEVICE_SWI(v, p) \
34 USB_DEVICE(v, p), .driver_info = QCSERIAL_SWI
35#define DEVICE_HWI(v, p) \
36 USB_DEVICE(v, p), .driver_info = QCSERIAL_HWI
37
38static const struct usb_device_id id_table[] = {
39
40 {DEVICE_G1K(0x05c6, 0x9211)},
41 {DEVICE_G1K(0x05c6, 0x9212)},
42 {DEVICE_G1K(0x03f0, 0x1f1d)},
43 {DEVICE_G1K(0x03f0, 0x201d)},
44 {DEVICE_G1K(0x04da, 0x250d)},
45 {DEVICE_G1K(0x04da, 0x250c)},
46 {DEVICE_G1K(0x413c, 0x8172)},
47 {DEVICE_G1K(0x413c, 0x8171)},
48 {DEVICE_G1K(0x1410, 0xa001)},
49 {DEVICE_G1K(0x1410, 0xa002)},
50 {DEVICE_G1K(0x1410, 0xa003)},
51 {DEVICE_G1K(0x1410, 0xa004)},
52 {DEVICE_G1K(0x1410, 0xa005)},
53 {DEVICE_G1K(0x1410, 0xa006)},
54 {DEVICE_G1K(0x1410, 0xa007)},
55 {DEVICE_G1K(0x1410, 0xa008)},
56 {DEVICE_G1K(0x0b05, 0x1776)},
57 {DEVICE_G1K(0x0b05, 0x1774)},
58 {DEVICE_G1K(0x19d2, 0xfff3)},
59 {DEVICE_G1K(0x19d2, 0xfff2)},
60 {DEVICE_G1K(0x1557, 0x0a80)},
61 {DEVICE_G1K(0x05c6, 0x9001)},
62 {DEVICE_G1K(0x05c6, 0x9002)},
63 {DEVICE_G1K(0x05c6, 0x9202)},
64 {DEVICE_G1K(0x05c6, 0x9203)},
65 {DEVICE_G1K(0x05c6, 0x9222)},
66 {DEVICE_G1K(0x05c6, 0x9008)},
67 {DEVICE_G1K(0x05c6, 0x9009)},
68 {DEVICE_G1K(0x05c6, 0x9201)},
69 {DEVICE_G1K(0x05c6, 0x9221)},
70 {DEVICE_G1K(0x05c6, 0x9231)},
71 {DEVICE_G1K(0x1f45, 0x0001)},
72 {DEVICE_G1K(0x1bc7, 0x900e)},
73
74
75 {USB_DEVICE(0x1410, 0xa010)},
76 {USB_DEVICE(0x1410, 0xa011)},
77 {USB_DEVICE(0x1410, 0xa012)},
78 {USB_DEVICE(0x1410, 0xa013)},
79 {USB_DEVICE(0x1410, 0xa014)},
80 {USB_DEVICE(0x413c, 0x8185)},
81 {USB_DEVICE(0x413c, 0x8186)},
82 {USB_DEVICE(0x05c6, 0x9208)},
83 {USB_DEVICE(0x05c6, 0x920b)},
84 {USB_DEVICE(0x05c6, 0x9224)},
85 {USB_DEVICE(0x05c6, 0x9225)},
86 {USB_DEVICE(0x05c6, 0x9244)},
87 {USB_DEVICE(0x05c6, 0x9245)},
88 {USB_DEVICE(0x03f0, 0x241d)},
89 {USB_DEVICE(0x03f0, 0x251d)},
90 {USB_DEVICE(0x05c6, 0x9214)},
91 {USB_DEVICE(0x05c6, 0x9215)},
92 {USB_DEVICE(0x05c6, 0x9264)},
93 {USB_DEVICE(0x05c6, 0x9265)},
94 {USB_DEVICE(0x05c6, 0x9234)},
95 {USB_DEVICE(0x05c6, 0x9235)},
96 {USB_DEVICE(0x05c6, 0x9274)},
97 {USB_DEVICE(0x05c6, 0x9275)},
98 {USB_DEVICE(0x1199, 0x9000)},
99 {USB_DEVICE(0x1199, 0x9001)},
100 {USB_DEVICE(0x1199, 0x9002)},
101 {USB_DEVICE(0x1199, 0x9003)},
102 {USB_DEVICE(0x1199, 0x9004)},
103 {USB_DEVICE(0x1199, 0x9005)},
104 {USB_DEVICE(0x1199, 0x9006)},
105 {USB_DEVICE(0x1199, 0x9007)},
106 {USB_DEVICE(0x1199, 0x9008)},
107 {USB_DEVICE(0x1199, 0x9009)},
108 {USB_DEVICE(0x1199, 0x900a)},
109 {USB_DEVICE(0x1199, 0x9011)},
110 {USB_DEVICE(0x16d8, 0x8001)},
111 {USB_DEVICE(0x16d8, 0x8002)},
112 {USB_DEVICE(0x05c6, 0x9204)},
113 {USB_DEVICE(0x05c6, 0x9205)},
114
115
116 {USB_DEVICE(0x03f0, 0x371d)},
117 {USB_DEVICE(0x05c6, 0x920c)},
118 {USB_DEVICE(0x05c6, 0x920d)},
119 {USB_DEVICE(0x1410, 0xa020)},
120 {USB_DEVICE(0x1410, 0xa021)},
121 {USB_DEVICE(0x413c, 0x8193)},
122 {USB_DEVICE(0x413c, 0x8194)},
123 {USB_DEVICE(0x413c, 0x81a6)},
124 {USB_DEVICE(0x1199, 0x68a4)},
125 {USB_DEVICE(0x1199, 0x68a5)},
126 {USB_DEVICE(0x1199, 0x68a8)},
127 {USB_DEVICE(0x1199, 0x68a9)},
128 {USB_DEVICE(0x1199, 0x9010)},
129 {USB_DEVICE(0x1199, 0x9012)},
130 {USB_DEVICE(0x1199, 0x9013)},
131 {USB_DEVICE(0x1199, 0x9014)},
132 {USB_DEVICE(0x1199, 0x9015)},
133 {USB_DEVICE(0x1199, 0x9018)},
134 {USB_DEVICE(0x1199, 0x9019)},
135 {USB_DEVICE(0x1199, 0x901b)},
136 {USB_DEVICE(0x12D1, 0x14F0)},
137 {USB_DEVICE(0x12D1, 0x14F1)},
138 {USB_DEVICE(0x0AF0, 0x8120)},
139
140
141 {DEVICE_SWI(0x03f0, 0x4e1d)},
142 {DEVICE_SWI(0x0f3d, 0x68a2)},
143 {DEVICE_SWI(0x114f, 0x68a2)},
144 {DEVICE_SWI(0x1199, 0x68a2)},
145 {DEVICE_SWI(0x1199, 0x68c0)},
146 {DEVICE_SWI(0x1199, 0x901c)},
147 {DEVICE_SWI(0x1199, 0x901e)},
148 {DEVICE_SWI(0x1199, 0x901f)},
149 {DEVICE_SWI(0x1199, 0x9040)},
150 {DEVICE_SWI(0x1199, 0x9041)},
151 {DEVICE_SWI(0x1199, 0x9051)},
152 {DEVICE_SWI(0x1199, 0x9053)},
153 {DEVICE_SWI(0x1199, 0x9054)},
154 {DEVICE_SWI(0x1199, 0x9055)},
155 {DEVICE_SWI(0x1199, 0x9056)},
156 {DEVICE_SWI(0x1199, 0x9060)},
157 {DEVICE_SWI(0x1199, 0x9061)},
158 {DEVICE_SWI(0x1199, 0x9063)},
159 {DEVICE_SWI(0x1199, 0x9070)},
160 {DEVICE_SWI(0x1199, 0x9071)},
161 {DEVICE_SWI(0x1199, 0x9078)},
162 {DEVICE_SWI(0x1199, 0x9079)},
163 {DEVICE_SWI(0x1199, 0x907a)},
164 {DEVICE_SWI(0x1199, 0x907b)},
165 {DEVICE_SWI(0x1199, 0x9090)},
166 {DEVICE_SWI(0x1199, 0x9091)},
167 {DEVICE_SWI(0x413c, 0x81a2)},
168 {DEVICE_SWI(0x413c, 0x81a3)},
169 {DEVICE_SWI(0x413c, 0x81a4)},
170 {DEVICE_SWI(0x413c, 0x81a8)},
171 {DEVICE_SWI(0x413c, 0x81a9)},
172 {DEVICE_SWI(0x413c, 0x81b1)},
173 {DEVICE_SWI(0x413c, 0x81b3)},
174 {DEVICE_SWI(0x413c, 0x81b5)},
175 {DEVICE_SWI(0x413c, 0x81b6)},
176 {DEVICE_SWI(0x413c, 0x81cf)},
177 {DEVICE_SWI(0x413c, 0x81d0)},
178 {DEVICE_SWI(0x413c, 0x81d1)},
179 {DEVICE_SWI(0x413c, 0x81d2)},
180
181
182 {DEVICE_HWI(0x03f0, 0x581d)},
183
184 { }
185};
186MODULE_DEVICE_TABLE(usb, id_table);
187
188static int handle_quectel_ec20(struct device *dev, int ifnum)
189{
190 int altsetting = 0;
191
192
193
194
195
196
197
198
199
200 switch (ifnum) {
201 case 0:
202 dev_dbg(dev, "Quectel EC20 DM/DIAG interface found\n");
203 break;
204 case 1:
205 dev_dbg(dev, "Quectel EC20 NMEA GPS interface found\n");
206 break;
207 case 2:
208 case 3:
209 dev_dbg(dev, "Quectel EC20 Modem port found\n");
210 break;
211 case 4:
212
213 altsetting = -1;
214 break;
215 }
216
217 return altsetting;
218}
219
220static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
221{
222 struct usb_host_interface *intf = serial->interface->cur_altsetting;
223 struct device *dev = &serial->dev->dev;
224 int retval = -ENODEV;
225 __u8 nintf;
226 __u8 ifnum;
227 int altsetting = -1;
228 bool sendsetup = false;
229
230
231 if (intf->desc.bInterfaceClass != USB_CLASS_VENDOR_SPEC)
232 goto done;
233
234 nintf = serial->dev->actconfig->desc.bNumInterfaces;
235 dev_dbg(dev, "Num Interfaces = %d\n", nintf);
236 ifnum = intf->desc.bInterfaceNumber;
237 dev_dbg(dev, "This Interface = %d\n", ifnum);
238
239 if (nintf == 1) {
240
241
242 if (serial->interface->num_altsetting == 2)
243 intf = &serial->interface->altsetting[1];
244 else if (serial->interface->num_altsetting > 2)
245 goto done;
246
247 if (intf->desc.bNumEndpoints == 2 &&
248 usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) &&
249 usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) {
250 dev_dbg(dev, "QDL port found\n");
251
252 if (serial->interface->num_altsetting == 1)
253 retval = 0;
254 else
255 altsetting = 1;
256 }
257 goto done;
258
259 }
260
261
262 altsetting = 0;
263
264
265
266
267
268
269 switch (id->driver_info) {
270 case QCSERIAL_G1K:
271
272
273
274
275
276
277
278 if (nintf < 3 || nintf > 4) {
279 dev_err(dev, "unknown number of interfaces: %d\n", nintf);
280 altsetting = -1;
281 goto done;
282 }
283
284 if (ifnum == 0) {
285 dev_dbg(dev, "Gobi 1K DM/DIAG interface found\n");
286 altsetting = 1;
287 } else if (ifnum == 2)
288 dev_dbg(dev, "Modem port found\n");
289 else
290 altsetting = -1;
291 break;
292 case QCSERIAL_G2K:
293
294 if (nintf == 5 && id->idProduct == QUECTEL_EC20_PID) {
295 altsetting = handle_quectel_ec20(dev, ifnum);
296 goto done;
297 }
298
299
300
301
302
303
304
305
306 if (nintf < 3 || nintf > 4) {
307 dev_err(dev, "unknown number of interfaces: %d\n", nintf);
308 altsetting = -1;
309 goto done;
310 }
311
312 switch (ifnum) {
313 case 0:
314
315 altsetting = -1;
316 break;
317 case 1:
318 dev_dbg(dev, "Gobi 2K+ DM/DIAG interface found\n");
319 break;
320 case 2:
321 dev_dbg(dev, "Modem port found\n");
322 break;
323 case 3:
324
325
326
327
328
329 dev_dbg(dev, "Gobi 2K+ NMEA GPS interface found\n");
330 break;
331 }
332 break;
333 case QCSERIAL_SWI:
334
335
336
337
338
339
340
341 switch (ifnum) {
342 case 0:
343 dev_dbg(dev, "DM/DIAG interface found\n");
344 break;
345 case 2:
346 dev_dbg(dev, "NMEA GPS interface found\n");
347 sendsetup = true;
348 break;
349 case 3:
350 dev_dbg(dev, "Modem port found\n");
351 sendsetup = true;
352 break;
353 default:
354
355 altsetting = -1;
356 break;
357 }
358 break;
359 case QCSERIAL_HWI:
360
361
362
363
364
365
366
367
368
369
370 switch (intf->desc.bInterfaceProtocol) {
371
372 case 0x07:
373 case 0x37:
374 case 0x67:
375
376 case 0x08:
377 case 0x38:
378 case 0x68:
379
380 case 0x09:
381 case 0x39:
382 case 0x69:
383
384 case 0x16:
385 case 0x46:
386 case 0x76:
387 altsetting = -1;
388 break;
389 default:
390 dev_dbg(dev, "Huawei type serial port found (%02x/%02x/%02x)\n",
391 intf->desc.bInterfaceClass,
392 intf->desc.bInterfaceSubClass,
393 intf->desc.bInterfaceProtocol);
394 }
395 break;
396 default:
397 dev_err(dev, "unsupported device layout type: %lu\n",
398 id->driver_info);
399 break;
400 }
401
402done:
403 if (altsetting >= 0) {
404 retval = usb_set_interface(serial->dev, ifnum, altsetting);
405 if (retval < 0) {
406 dev_err(dev,
407 "Could not set interface, error %d\n",
408 retval);
409 retval = -ENODEV;
410 }
411 }
412
413 if (!retval)
414 usb_set_serial_data(serial, (void *)(unsigned long)sendsetup);
415
416 return retval;
417}
418
419static int qc_attach(struct usb_serial *serial)
420{
421 struct usb_wwan_intf_private *data;
422 bool sendsetup;
423
424 data = kzalloc(sizeof(*data), GFP_KERNEL);
425 if (!data)
426 return -ENOMEM;
427
428 sendsetup = !!(unsigned long)(usb_get_serial_data(serial));
429 if (sendsetup)
430 data->use_send_setup = 1;
431
432 spin_lock_init(&data->susp_lock);
433
434 usb_set_serial_data(serial, data);
435
436 return 0;
437}
438
439static void qc_release(struct usb_serial *serial)
440{
441 struct usb_wwan_intf_private *priv = usb_get_serial_data(serial);
442
443 usb_set_serial_data(serial, NULL);
444 kfree(priv);
445}
446
447static struct usb_serial_driver qcdevice = {
448 .driver = {
449 .owner = THIS_MODULE,
450 .name = "qcserial",
451 },
452 .description = "Qualcomm USB modem",
453 .id_table = id_table,
454 .num_ports = 1,
455 .probe = qcprobe,
456 .open = usb_wwan_open,
457 .close = usb_wwan_close,
458 .dtr_rts = usb_wwan_dtr_rts,
459 .write = usb_wwan_write,
460 .write_room = usb_wwan_write_room,
461 .chars_in_buffer = usb_wwan_chars_in_buffer,
462 .tiocmget = usb_wwan_tiocmget,
463 .tiocmset = usb_wwan_tiocmset,
464 .attach = qc_attach,
465 .release = qc_release,
466 .port_probe = usb_wwan_port_probe,
467 .port_remove = usb_wwan_port_remove,
468#ifdef CONFIG_PM
469 .suspend = usb_wwan_suspend,
470 .resume = usb_wwan_resume,
471#endif
472};
473
474static struct usb_serial_driver * const serial_drivers[] = {
475 &qcdevice, NULL
476};
477
478module_usb_serial_driver(serial_drivers, id_table);
479
480MODULE_AUTHOR(DRIVER_AUTHOR);
481MODULE_DESCRIPTION(DRIVER_DESC);
482MODULE_LICENSE("GPL v2");
483