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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, 0x9062)},
159 {DEVICE_SWI(0x1199, 0x9063)},
160 {DEVICE_SWI(0x1199, 0x9070)},
161 {DEVICE_SWI(0x1199, 0x9071)},
162 {DEVICE_SWI(0x1199, 0x9078)},
163 {DEVICE_SWI(0x1199, 0x9079)},
164 {DEVICE_SWI(0x1199, 0x907a)},
165 {DEVICE_SWI(0x1199, 0x907b)},
166 {DEVICE_SWI(0x1199, 0x9090)},
167 {DEVICE_SWI(0x1199, 0x9091)},
168 {DEVICE_SWI(0x1199, 0x90d2)},
169 {DEVICE_SWI(0x413c, 0x81a2)},
170 {DEVICE_SWI(0x413c, 0x81a3)},
171 {DEVICE_SWI(0x413c, 0x81a4)},
172 {DEVICE_SWI(0x413c, 0x81a8)},
173 {DEVICE_SWI(0x413c, 0x81a9)},
174 {DEVICE_SWI(0x413c, 0x81b1)},
175 {DEVICE_SWI(0x413c, 0x81b3)},
176 {DEVICE_SWI(0x413c, 0x81b5)},
177 {DEVICE_SWI(0x413c, 0x81b6)},
178 {DEVICE_SWI(0x413c, 0x81cb)},
179 {DEVICE_SWI(0x413c, 0x81cc)},
180 {DEVICE_SWI(0x413c, 0x81cf)},
181 {DEVICE_SWI(0x413c, 0x81d0)},
182 {DEVICE_SWI(0x413c, 0x81d1)},
183 {DEVICE_SWI(0x413c, 0x81d2)},
184
185
186 {DEVICE_HWI(0x03f0, 0x581d)},
187
188 { }
189};
190MODULE_DEVICE_TABLE(usb, id_table);
191
192static int handle_quectel_ec20(struct device *dev, int ifnum)
193{
194 int altsetting = 0;
195
196
197
198
199
200
201
202
203
204 switch (ifnum) {
205 case 0:
206 dev_dbg(dev, "Quectel EC20 DM/DIAG interface found\n");
207 break;
208 case 1:
209 dev_dbg(dev, "Quectel EC20 NMEA GPS interface found\n");
210 break;
211 case 2:
212 case 3:
213 dev_dbg(dev, "Quectel EC20 Modem port found\n");
214 break;
215 case 4:
216
217 altsetting = -1;
218 break;
219 }
220
221 return altsetting;
222}
223
224static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
225{
226 struct usb_host_interface *intf = serial->interface->cur_altsetting;
227 struct device *dev = &serial->dev->dev;
228 int retval = -ENODEV;
229 __u8 nintf;
230 __u8 ifnum;
231 int altsetting = -1;
232 bool sendsetup = false;
233
234
235 if (intf->desc.bInterfaceClass != USB_CLASS_VENDOR_SPEC)
236 goto done;
237
238 nintf = serial->dev->actconfig->desc.bNumInterfaces;
239 dev_dbg(dev, "Num Interfaces = %d\n", nintf);
240 ifnum = intf->desc.bInterfaceNumber;
241 dev_dbg(dev, "This Interface = %d\n", ifnum);
242
243 if (nintf == 1) {
244
245
246 if (serial->interface->num_altsetting == 2)
247 intf = usb_altnum_to_altsetting(serial->interface, 1);
248 else if (serial->interface->num_altsetting > 2)
249 goto done;
250
251 if (intf && intf->desc.bNumEndpoints == 2 &&
252 usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) &&
253 usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) {
254 dev_dbg(dev, "QDL port found\n");
255
256 if (serial->interface->num_altsetting == 1)
257 retval = 0;
258 else
259 altsetting = 1;
260 }
261 goto done;
262
263 }
264
265
266 altsetting = 0;
267
268
269
270
271
272
273 switch (id->driver_info) {
274 case QCSERIAL_G1K:
275
276
277
278
279
280
281
282 if (nintf < 3 || nintf > 4) {
283 dev_err(dev, "unknown number of interfaces: %d\n", nintf);
284 altsetting = -1;
285 goto done;
286 }
287
288 if (ifnum == 0) {
289 dev_dbg(dev, "Gobi 1K DM/DIAG interface found\n");
290 altsetting = 1;
291 } else if (ifnum == 2)
292 dev_dbg(dev, "Modem port found\n");
293 else
294 altsetting = -1;
295 break;
296 case QCSERIAL_G2K:
297
298 if (nintf == 5 && id->idProduct == QUECTEL_EC20_PID) {
299 altsetting = handle_quectel_ec20(dev, ifnum);
300 goto done;
301 }
302
303
304
305
306
307
308
309
310 if (nintf < 3 || nintf > 4) {
311 dev_err(dev, "unknown number of interfaces: %d\n", nintf);
312 altsetting = -1;
313 goto done;
314 }
315
316 switch (ifnum) {
317 case 0:
318
319 altsetting = -1;
320 break;
321 case 1:
322 dev_dbg(dev, "Gobi 2K+ DM/DIAG interface found\n");
323 break;
324 case 2:
325 dev_dbg(dev, "Modem port found\n");
326 break;
327 case 3:
328
329
330
331
332
333 dev_dbg(dev, "Gobi 2K+ NMEA GPS interface found\n");
334 break;
335 }
336 break;
337 case QCSERIAL_SWI:
338
339
340
341
342
343
344
345 switch (ifnum) {
346 case 0:
347 dev_dbg(dev, "DM/DIAG interface found\n");
348 break;
349 case 2:
350 dev_dbg(dev, "NMEA GPS interface found\n");
351 sendsetup = true;
352 break;
353 case 3:
354 dev_dbg(dev, "Modem port found\n");
355 sendsetup = true;
356 break;
357 default:
358
359 altsetting = -1;
360 break;
361 }
362 break;
363 case QCSERIAL_HWI:
364
365
366
367
368
369
370
371
372
373 switch (intf->desc.bInterfaceProtocol) {
374
375 case 0x07:
376 case 0x37:
377 case 0x67:
378
379 case 0x08:
380 case 0x38:
381 case 0x68:
382
383 case 0x09:
384 case 0x39:
385 case 0x69:
386
387 case 0x16:
388 case 0x46:
389 case 0x76:
390 altsetting = -1;
391 break;
392 default:
393 dev_dbg(dev, "Huawei type serial port found (%02x/%02x/%02x)\n",
394 intf->desc.bInterfaceClass,
395 intf->desc.bInterfaceSubClass,
396 intf->desc.bInterfaceProtocol);
397 }
398 break;
399 default:
400 dev_err(dev, "unsupported device layout type: %lu\n",
401 id->driver_info);
402 break;
403 }
404
405done:
406 if (altsetting >= 0) {
407 retval = usb_set_interface(serial->dev, ifnum, altsetting);
408 if (retval < 0) {
409 dev_err(dev,
410 "Could not set interface, error %d\n",
411 retval);
412 retval = -ENODEV;
413 }
414 }
415
416 if (!retval)
417 usb_set_serial_data(serial, (void *)(unsigned long)sendsetup);
418
419 return retval;
420}
421
422static int qc_attach(struct usb_serial *serial)
423{
424 struct usb_wwan_intf_private *data;
425 bool sendsetup;
426
427 data = kzalloc(sizeof(*data), GFP_KERNEL);
428 if (!data)
429 return -ENOMEM;
430
431 sendsetup = !!(unsigned long)(usb_get_serial_data(serial));
432 if (sendsetup)
433 data->use_send_setup = 1;
434
435 spin_lock_init(&data->susp_lock);
436
437 usb_set_serial_data(serial, data);
438
439 return 0;
440}
441
442static void qc_release(struct usb_serial *serial)
443{
444 struct usb_wwan_intf_private *priv = usb_get_serial_data(serial);
445
446 usb_set_serial_data(serial, NULL);
447 kfree(priv);
448}
449
450static struct usb_serial_driver qcdevice = {
451 .driver = {
452 .owner = THIS_MODULE,
453 .name = "qcserial",
454 },
455 .description = "Qualcomm USB modem",
456 .id_table = id_table,
457 .num_ports = 1,
458 .probe = qcprobe,
459 .open = usb_wwan_open,
460 .close = usb_wwan_close,
461 .dtr_rts = usb_wwan_dtr_rts,
462 .write = usb_wwan_write,
463 .write_room = usb_wwan_write_room,
464 .chars_in_buffer = usb_wwan_chars_in_buffer,
465 .tiocmget = usb_wwan_tiocmget,
466 .tiocmset = usb_wwan_tiocmset,
467 .attach = qc_attach,
468 .release = qc_release,
469 .port_probe = usb_wwan_port_probe,
470 .port_remove = usb_wwan_port_remove,
471#ifdef CONFIG_PM
472 .suspend = usb_wwan_suspend,
473 .resume = usb_wwan_resume,
474#endif
475};
476
477static struct usb_serial_driver * const serial_drivers[] = {
478 &qcdevice, NULL
479};
480
481module_usb_serial_driver(serial_drivers, id_table);
482
483MODULE_AUTHOR(DRIVER_AUTHOR);
484MODULE_DESCRIPTION(DRIVER_DESC);
485MODULE_LICENSE("GPL v2");
486