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[media] gspca: Add reset_resume callback to all sub-drivers
[mirror_ubuntu-artful-kernel.git] / drivers / media / video / gspca / gl860 / gl860.c
1 /* GSPCA subdrivers for Genesys Logic webcams with the GL860 chip
2 * Subdriver core
3 *
4 * 2009/09/24 Olivier Lorin <o.lorin@laposte.net>
5 * GSPCA by Jean-Francois Moine <http://moinejf.free.fr>
6 * Thanks BUGabundo and Malmostoso for your amazing help!
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 */
21
22 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
23
24 #include "gspca.h"
25 #include "gl860.h"
26
27 MODULE_AUTHOR("Olivier Lorin <o.lorin@laposte.net>");
28 MODULE_DESCRIPTION("Genesys Logic USB PC Camera Driver");
29 MODULE_LICENSE("GPL");
30
31 /*======================== static function declarations ====================*/
32
33 static void (*dev_init_settings)(struct gspca_dev *gspca_dev);
34
35 static int sd_config(struct gspca_dev *gspca_dev,
36 const struct usb_device_id *id);
37 static int sd_init(struct gspca_dev *gspca_dev);
38 static int sd_isoc_init(struct gspca_dev *gspca_dev);
39 static int sd_start(struct gspca_dev *gspca_dev);
40 static void sd_stop0(struct gspca_dev *gspca_dev);
41 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
42 u8 *data, int len);
43 static void sd_callback(struct gspca_dev *gspca_dev);
44
45 static int gl860_guess_sensor(struct gspca_dev *gspca_dev,
46 u16 vendor_id, u16 product_id);
47
48 /*============================ driver options ==============================*/
49
50 static s32 AC50Hz = 0xff;
51 module_param(AC50Hz, int, 0644);
52 MODULE_PARM_DESC(AC50Hz, " Does AC power frequency is 50Hz? (0/1)");
53
54 static char sensor[7];
55 module_param_string(sensor, sensor, sizeof(sensor), 0644);
56 MODULE_PARM_DESC(sensor,
57 " Driver sensor ('MI1320'/'MI2020'/'OV9655'/'OV2640')");
58
59 /*============================ webcam controls =============================*/
60
61 /* Functions to get and set a control value */
62 #define SD_SETGET(thename) \
63 static int sd_set_##thename(struct gspca_dev *gspca_dev, s32 val)\
64 {\
65 struct sd *sd = (struct sd *) gspca_dev;\
66 \
67 sd->vcur.thename = val;\
68 if (gspca_dev->streaming)\
69 sd->waitSet = 1;\
70 return 0;\
71 } \
72 static int sd_get_##thename(struct gspca_dev *gspca_dev, s32 *val)\
73 {\
74 struct sd *sd = (struct sd *) gspca_dev;\
75 \
76 *val = sd->vcur.thename;\
77 return 0;\
78 }
79
80 SD_SETGET(mirror)
81 SD_SETGET(flip)
82 SD_SETGET(AC50Hz)
83 SD_SETGET(backlight)
84 SD_SETGET(brightness)
85 SD_SETGET(gamma)
86 SD_SETGET(hue)
87 SD_SETGET(saturation)
88 SD_SETGET(sharpness)
89 SD_SETGET(whitebal)
90 SD_SETGET(contrast)
91
92 #define GL860_NCTRLS 11
93
94 /* control table */
95 static struct ctrl sd_ctrls_mi1320[GL860_NCTRLS];
96 static struct ctrl sd_ctrls_mi2020[GL860_NCTRLS];
97 static struct ctrl sd_ctrls_ov2640[GL860_NCTRLS];
98 static struct ctrl sd_ctrls_ov9655[GL860_NCTRLS];
99
100 #define SET_MY_CTRL(theid, \
101 thetype, thelabel, thename) \
102 if (sd->vmax.thename != 0) {\
103 sd_ctrls[nCtrls].qctrl.id = theid;\
104 sd_ctrls[nCtrls].qctrl.type = thetype;\
105 strcpy(sd_ctrls[nCtrls].qctrl.name, thelabel);\
106 sd_ctrls[nCtrls].qctrl.minimum = 0;\
107 sd_ctrls[nCtrls].qctrl.maximum = sd->vmax.thename;\
108 sd_ctrls[nCtrls].qctrl.default_value = sd->vcur.thename;\
109 sd_ctrls[nCtrls].qctrl.step = \
110 (sd->vmax.thename < 16) ? 1 : sd->vmax.thename/16;\
111 sd_ctrls[nCtrls].set = sd_set_##thename;\
112 sd_ctrls[nCtrls].get = sd_get_##thename;\
113 nCtrls++;\
114 }
115
116 static int gl860_build_control_table(struct gspca_dev *gspca_dev)
117 {
118 struct sd *sd = (struct sd *) gspca_dev;
119 struct ctrl *sd_ctrls;
120 int nCtrls = 0;
121
122 if (_MI1320_)
123 sd_ctrls = sd_ctrls_mi1320;
124 else if (_MI2020_)
125 sd_ctrls = sd_ctrls_mi2020;
126 else if (_OV2640_)
127 sd_ctrls = sd_ctrls_ov2640;
128 else if (_OV9655_)
129 sd_ctrls = sd_ctrls_ov9655;
130 else
131 return 0;
132
133 memset(sd_ctrls, 0, GL860_NCTRLS * sizeof(struct ctrl));
134
135 SET_MY_CTRL(V4L2_CID_BRIGHTNESS,
136 V4L2_CTRL_TYPE_INTEGER, "Brightness", brightness)
137 SET_MY_CTRL(V4L2_CID_SHARPNESS,
138 V4L2_CTRL_TYPE_INTEGER, "Sharpness", sharpness)
139 SET_MY_CTRL(V4L2_CID_CONTRAST,
140 V4L2_CTRL_TYPE_INTEGER, "Contrast", contrast)
141 SET_MY_CTRL(V4L2_CID_GAMMA,
142 V4L2_CTRL_TYPE_INTEGER, "Gamma", gamma)
143 SET_MY_CTRL(V4L2_CID_HUE,
144 V4L2_CTRL_TYPE_INTEGER, "Palette", hue)
145 SET_MY_CTRL(V4L2_CID_SATURATION,
146 V4L2_CTRL_TYPE_INTEGER, "Saturation", saturation)
147 SET_MY_CTRL(V4L2_CID_WHITE_BALANCE_TEMPERATURE,
148 V4L2_CTRL_TYPE_INTEGER, "White Bal.", whitebal)
149 SET_MY_CTRL(V4L2_CID_BACKLIGHT_COMPENSATION,
150 V4L2_CTRL_TYPE_INTEGER, "Backlight" , backlight)
151
152 SET_MY_CTRL(V4L2_CID_HFLIP,
153 V4L2_CTRL_TYPE_BOOLEAN, "Mirror", mirror)
154 SET_MY_CTRL(V4L2_CID_VFLIP,
155 V4L2_CTRL_TYPE_BOOLEAN, "Flip", flip)
156 SET_MY_CTRL(V4L2_CID_POWER_LINE_FREQUENCY,
157 V4L2_CTRL_TYPE_BOOLEAN, "AC power 50Hz", AC50Hz)
158
159 return nCtrls;
160 }
161
162 /*==================== sud-driver structure initialisation =================*/
163
164 static const struct sd_desc sd_desc_mi1320 = {
165 .name = MODULE_NAME,
166 .ctrls = sd_ctrls_mi1320,
167 .nctrls = GL860_NCTRLS,
168 .config = sd_config,
169 .init = sd_init,
170 .isoc_init = sd_isoc_init,
171 .start = sd_start,
172 .stop0 = sd_stop0,
173 .pkt_scan = sd_pkt_scan,
174 .dq_callback = sd_callback,
175 };
176
177 static const struct sd_desc sd_desc_mi2020 = {
178 .name = MODULE_NAME,
179 .ctrls = sd_ctrls_mi2020,
180 .nctrls = GL860_NCTRLS,
181 .config = sd_config,
182 .init = sd_init,
183 .isoc_init = sd_isoc_init,
184 .start = sd_start,
185 .stop0 = sd_stop0,
186 .pkt_scan = sd_pkt_scan,
187 .dq_callback = sd_callback,
188 };
189
190 static const struct sd_desc sd_desc_ov2640 = {
191 .name = MODULE_NAME,
192 .ctrls = sd_ctrls_ov2640,
193 .nctrls = GL860_NCTRLS,
194 .config = sd_config,
195 .init = sd_init,
196 .isoc_init = sd_isoc_init,
197 .start = sd_start,
198 .stop0 = sd_stop0,
199 .pkt_scan = sd_pkt_scan,
200 .dq_callback = sd_callback,
201 };
202
203 static const struct sd_desc sd_desc_ov9655 = {
204 .name = MODULE_NAME,
205 .ctrls = sd_ctrls_ov9655,
206 .nctrls = GL860_NCTRLS,
207 .config = sd_config,
208 .init = sd_init,
209 .isoc_init = sd_isoc_init,
210 .start = sd_start,
211 .stop0 = sd_stop0,
212 .pkt_scan = sd_pkt_scan,
213 .dq_callback = sd_callback,
214 };
215
216 /*=========================== sub-driver image sizes =======================*/
217
218 static struct v4l2_pix_format mi2020_mode[] = {
219 { 640, 480, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE,
220 .bytesperline = 640,
221 .sizeimage = 640 * 480,
222 .colorspace = V4L2_COLORSPACE_SRGB,
223 .priv = 0
224 },
225 { 800, 598, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE,
226 .bytesperline = 800,
227 .sizeimage = 800 * 598,
228 .colorspace = V4L2_COLORSPACE_SRGB,
229 .priv = 1
230 },
231 {1280, 1024, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE,
232 .bytesperline = 1280,
233 .sizeimage = 1280 * 1024,
234 .colorspace = V4L2_COLORSPACE_SRGB,
235 .priv = 2
236 },
237 {1600, 1198, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE,
238 .bytesperline = 1600,
239 .sizeimage = 1600 * 1198,
240 .colorspace = V4L2_COLORSPACE_SRGB,
241 .priv = 3
242 },
243 };
244
245 static struct v4l2_pix_format ov2640_mode[] = {
246 { 640, 480, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE,
247 .bytesperline = 640,
248 .sizeimage = 640 * 480,
249 .colorspace = V4L2_COLORSPACE_SRGB,
250 .priv = 0
251 },
252 { 800, 600, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE,
253 .bytesperline = 800,
254 .sizeimage = 800 * 600,
255 .colorspace = V4L2_COLORSPACE_SRGB,
256 .priv = 1
257 },
258 {1280, 960, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE,
259 .bytesperline = 1280,
260 .sizeimage = 1280 * 960,
261 .colorspace = V4L2_COLORSPACE_SRGB,
262 .priv = 2
263 },
264 {1600, 1200, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE,
265 .bytesperline = 1600,
266 .sizeimage = 1600 * 1200,
267 .colorspace = V4L2_COLORSPACE_SRGB,
268 .priv = 3
269 },
270 };
271
272 static struct v4l2_pix_format mi1320_mode[] = {
273 { 640, 480, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE,
274 .bytesperline = 640,
275 .sizeimage = 640 * 480,
276 .colorspace = V4L2_COLORSPACE_SRGB,
277 .priv = 0
278 },
279 { 800, 600, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE,
280 .bytesperline = 800,
281 .sizeimage = 800 * 600,
282 .colorspace = V4L2_COLORSPACE_SRGB,
283 .priv = 1
284 },
285 {1280, 960, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE,
286 .bytesperline = 1280,
287 .sizeimage = 1280 * 960,
288 .colorspace = V4L2_COLORSPACE_SRGB,
289 .priv = 2
290 },
291 };
292
293 static struct v4l2_pix_format ov9655_mode[] = {
294 { 640, 480, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE,
295 .bytesperline = 640,
296 .sizeimage = 640 * 480,
297 .colorspace = V4L2_COLORSPACE_SRGB,
298 .priv = 0
299 },
300 {1280, 960, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE,
301 .bytesperline = 1280,
302 .sizeimage = 1280 * 960,
303 .colorspace = V4L2_COLORSPACE_SRGB,
304 .priv = 1
305 },
306 };
307
308 /*========================= sud-driver functions ===========================*/
309
310 /* This function is called at probe time */
311 static int sd_config(struct gspca_dev *gspca_dev,
312 const struct usb_device_id *id)
313 {
314 struct sd *sd = (struct sd *) gspca_dev;
315 struct cam *cam;
316 u16 vendor_id, product_id;
317
318 /* Get USB VendorID and ProductID */
319 vendor_id = id->idVendor;
320 product_id = id->idProduct;
321
322 sd->nbRightUp = 1;
323 sd->nbIm = -1;
324
325 sd->sensor = 0xff;
326 if (strcmp(sensor, "MI1320") == 0)
327 sd->sensor = ID_MI1320;
328 else if (strcmp(sensor, "OV2640") == 0)
329 sd->sensor = ID_OV2640;
330 else if (strcmp(sensor, "OV9655") == 0)
331 sd->sensor = ID_OV9655;
332 else if (strcmp(sensor, "MI2020") == 0)
333 sd->sensor = ID_MI2020;
334
335 /* Get sensor and set the suitable init/start/../stop functions */
336 if (gl860_guess_sensor(gspca_dev, vendor_id, product_id) == -1)
337 return -1;
338
339 cam = &gspca_dev->cam;
340
341 switch (sd->sensor) {
342 case ID_MI1320:
343 gspca_dev->sd_desc = &sd_desc_mi1320;
344 cam->cam_mode = mi1320_mode;
345 cam->nmodes = ARRAY_SIZE(mi1320_mode);
346 dev_init_settings = mi1320_init_settings;
347 break;
348
349 case ID_MI2020:
350 gspca_dev->sd_desc = &sd_desc_mi2020;
351 cam->cam_mode = mi2020_mode;
352 cam->nmodes = ARRAY_SIZE(mi2020_mode);
353 dev_init_settings = mi2020_init_settings;
354 break;
355
356 case ID_OV2640:
357 gspca_dev->sd_desc = &sd_desc_ov2640;
358 cam->cam_mode = ov2640_mode;
359 cam->nmodes = ARRAY_SIZE(ov2640_mode);
360 dev_init_settings = ov2640_init_settings;
361 break;
362
363 case ID_OV9655:
364 gspca_dev->sd_desc = &sd_desc_ov9655;
365 cam->cam_mode = ov9655_mode;
366 cam->nmodes = ARRAY_SIZE(ov9655_mode);
367 dev_init_settings = ov9655_init_settings;
368 break;
369 }
370
371 dev_init_settings(gspca_dev);
372 if (AC50Hz != 0xff)
373 ((struct sd *) gspca_dev)->vcur.AC50Hz = AC50Hz;
374 gl860_build_control_table(gspca_dev);
375
376 return 0;
377 }
378
379 /* This function is called at probe time after sd_config */
380 static int sd_init(struct gspca_dev *gspca_dev)
381 {
382 struct sd *sd = (struct sd *) gspca_dev;
383
384 return sd->dev_init_at_startup(gspca_dev);
385 }
386
387 /* This function is called before to choose the alt setting */
388 static int sd_isoc_init(struct gspca_dev *gspca_dev)
389 {
390 struct sd *sd = (struct sd *) gspca_dev;
391
392 return sd->dev_configure_alt(gspca_dev);
393 }
394
395 /* This function is called to start the webcam */
396 static int sd_start(struct gspca_dev *gspca_dev)
397 {
398 struct sd *sd = (struct sd *) gspca_dev;
399
400 return sd->dev_init_pre_alt(gspca_dev);
401 }
402
403 /* This function is called to stop the webcam */
404 static void sd_stop0(struct gspca_dev *gspca_dev)
405 {
406 struct sd *sd = (struct sd *) gspca_dev;
407
408 if (!sd->gspca_dev.present)
409 return;
410
411 return sd->dev_post_unset_alt(gspca_dev);
412 }
413
414 /* This function is called when an image is being received */
415 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
416 u8 *data, int len)
417 {
418 struct sd *sd = (struct sd *) gspca_dev;
419 static s32 nSkipped;
420
421 s32 mode = (s32) gspca_dev->curr_mode;
422 s32 nToSkip =
423 sd->swapRB * (gspca_dev->cam.cam_mode[mode].bytesperline + 1);
424
425 /* Test only against 0202h, so endianess does not matter */
426 switch (*(s16 *) data) {
427 case 0x0202: /* End of frame, start a new one */
428 gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
429 nSkipped = 0;
430 if (sd->nbIm >= 0 && sd->nbIm < 10)
431 sd->nbIm++;
432 gspca_frame_add(gspca_dev, FIRST_PACKET, NULL, 0);
433 break;
434
435 default:
436 data += 2;
437 len -= 2;
438 if (nSkipped + len <= nToSkip)
439 nSkipped += len;
440 else {
441 if (nSkipped < nToSkip && nSkipped + len > nToSkip) {
442 data += nToSkip - nSkipped;
443 len -= nToSkip - nSkipped;
444 nSkipped = nToSkip + 1;
445 }
446 gspca_frame_add(gspca_dev,
447 INTER_PACKET, data, len);
448 }
449 break;
450 }
451 }
452
453 /* This function is called when an image has been read */
454 /* This function is used to monitor webcam orientation */
455 static void sd_callback(struct gspca_dev *gspca_dev)
456 {
457 struct sd *sd = (struct sd *) gspca_dev;
458
459 if (!_OV9655_) {
460 u8 state;
461 u8 upsideDown;
462
463 /* Probe sensor orientation */
464 ctrl_in(gspca_dev, 0xc0, 2, 0x0000, 0x0000, 1, (void *)&state);
465
466 /* C8/40 means upside-down (looking backwards) */
467 /* D8/50 means right-up (looking onwards) */
468 upsideDown = (state == 0xc8 || state == 0x40);
469
470 if (upsideDown && sd->nbRightUp > -4) {
471 if (sd->nbRightUp > 0)
472 sd->nbRightUp = 0;
473 if (sd->nbRightUp == -3) {
474 sd->mirrorMask = 1;
475 sd->waitSet = 1;
476 }
477 sd->nbRightUp--;
478 }
479 if (!upsideDown && sd->nbRightUp < 4) {
480 if (sd->nbRightUp < 0)
481 sd->nbRightUp = 0;
482 if (sd->nbRightUp == 3) {
483 sd->mirrorMask = 0;
484 sd->waitSet = 1;
485 }
486 sd->nbRightUp++;
487 }
488 }
489
490 if (sd->waitSet)
491 sd->dev_camera_settings(gspca_dev);
492 }
493
494 /*=================== USB driver structure initialisation ==================*/
495
496 static const struct usb_device_id device_table[] = {
497 {USB_DEVICE(0x05e3, 0x0503)},
498 {USB_DEVICE(0x05e3, 0xf191)},
499 {}
500 };
501
502 MODULE_DEVICE_TABLE(usb, device_table);
503
504 static int sd_probe(struct usb_interface *intf,
505 const struct usb_device_id *id)
506 {
507 return gspca_dev_probe(intf, id,
508 &sd_desc_mi1320, sizeof(struct sd), THIS_MODULE);
509 }
510
511 static void sd_disconnect(struct usb_interface *intf)
512 {
513 gspca_disconnect(intf);
514 }
515
516 static struct usb_driver sd_driver = {
517 .name = MODULE_NAME,
518 .id_table = device_table,
519 .probe = sd_probe,
520 .disconnect = sd_disconnect,
521 #ifdef CONFIG_PM
522 .suspend = gspca_suspend,
523 .resume = gspca_resume,
524 .reset_resume = gspca_resume,
525 #endif
526 };
527
528 /*====================== Init and Exit module functions ====================*/
529
530 module_usb_driver(sd_driver);
531
532 /*==========================================================================*/
533
534 int gl860_RTx(struct gspca_dev *gspca_dev,
535 unsigned char pref, u32 req, u16 val, u16 index,
536 s32 len, void *pdata)
537 {
538 struct usb_device *udev = gspca_dev->dev;
539 s32 r = 0;
540
541 if (pref == 0x40) { /* Send */
542 if (len > 0) {
543 memcpy(gspca_dev->usb_buf, pdata, len);
544 r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
545 req, pref, val, index,
546 gspca_dev->usb_buf,
547 len, 400 + 200 * (len > 1));
548 } else {
549 r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
550 req, pref, val, index, NULL, len, 400);
551 }
552 } else { /* Receive */
553 if (len > 0) {
554 r = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
555 req, pref, val, index,
556 gspca_dev->usb_buf,
557 len, 400 + 200 * (len > 1));
558 memcpy(pdata, gspca_dev->usb_buf, len);
559 } else {
560 r = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
561 req, pref, val, index, NULL, len, 400);
562 }
563 }
564
565 if (r < 0)
566 pr_err("ctrl transfer failed %4d [p%02x r%d v%04x i%04x len%d]\n",
567 r, pref, req, val, index, len);
568 else if (len > 1 && r < len)
569 PDEBUG(D_ERR, "short ctrl transfer %d/%d", r, len);
570
571 msleep(1);
572
573 return r;
574 }
575
576 int fetch_validx(struct gspca_dev *gspca_dev, struct validx *tbl, int len)
577 {
578 int n;
579
580 for (n = 0; n < len; n++) {
581 if (tbl[n].idx != 0xffff)
582 ctrl_out(gspca_dev, 0x40, 1, tbl[n].val,
583 tbl[n].idx, 0, NULL);
584 else if (tbl[n].val == 0xffff)
585 break;
586 else
587 msleep(tbl[n].val);
588 }
589 return n;
590 }
591
592 int keep_on_fetching_validx(struct gspca_dev *gspca_dev, struct validx *tbl,
593 int len, int n)
594 {
595 while (++n < len) {
596 if (tbl[n].idx != 0xffff)
597 ctrl_out(gspca_dev, 0x40, 1, tbl[n].val, tbl[n].idx,
598 0, NULL);
599 else if (tbl[n].val == 0xffff)
600 break;
601 else
602 msleep(tbl[n].val);
603 }
604 return n;
605 }
606
607 void fetch_idxdata(struct gspca_dev *gspca_dev, struct idxdata *tbl, int len)
608 {
609 int n;
610
611 for (n = 0; n < len; n++) {
612 if (memcmp(tbl[n].data, "\xff\xff\xff", 3) != 0)
613 ctrl_out(gspca_dev, 0x40, 3, 0x7a00, tbl[n].idx,
614 3, tbl[n].data);
615 else
616 msleep(tbl[n].idx);
617 }
618 }
619
620 static int gl860_guess_sensor(struct gspca_dev *gspca_dev,
621 u16 vendor_id, u16 product_id)
622 {
623 struct sd *sd = (struct sd *) gspca_dev;
624 u8 probe, nb26, nb96, nOV, ntry;
625
626 if (product_id == 0xf191)
627 sd->sensor = ID_MI1320;
628
629 if (sd->sensor == 0xff) {
630 ctrl_in(gspca_dev, 0xc0, 2, 0x0000, 0x0004, 1, &probe);
631 ctrl_in(gspca_dev, 0xc0, 2, 0x0000, 0x0004, 1, &probe);
632
633 ctrl_out(gspca_dev, 0x40, 1, 0x0000, 0x0000, 0, NULL);
634 msleep(3);
635 ctrl_out(gspca_dev, 0x40, 1, 0x0010, 0x0010, 0, NULL);
636 msleep(3);
637 ctrl_out(gspca_dev, 0x40, 1, 0x0008, 0x00c0, 0, NULL);
638 msleep(3);
639 ctrl_out(gspca_dev, 0x40, 1, 0x0001, 0x00c1, 0, NULL);
640 msleep(3);
641 ctrl_out(gspca_dev, 0x40, 1, 0x0001, 0x00c2, 0, NULL);
642 msleep(3);
643 ctrl_out(gspca_dev, 0x40, 1, 0x0020, 0x0006, 0, NULL);
644 msleep(3);
645 ctrl_out(gspca_dev, 0x40, 1, 0x006a, 0x000d, 0, NULL);
646 msleep(56);
647
648 PDEBUG(D_PROBE, "probing for sensor MI2020 or OVXXXX");
649 nOV = 0;
650 for (ntry = 0; ntry < 4; ntry++) {
651 ctrl_out(gspca_dev, 0x40, 1, 0x0040, 0x0000, 0, NULL);
652 msleep(3);
653 ctrl_out(gspca_dev, 0x40, 1, 0x0063, 0x0006, 0, NULL);
654 msleep(3);
655 ctrl_out(gspca_dev, 0x40, 1, 0x7a00, 0x8030, 0, NULL);
656 msleep(10);
657 ctrl_in(gspca_dev, 0xc0, 2, 0x7a00, 0x8030, 1, &probe);
658 PDEBUG(D_PROBE, "probe=0x%02x", probe);
659 if (probe == 0xff)
660 nOV++;
661 }
662
663 if (nOV) {
664 PDEBUG(D_PROBE, "0xff -> OVXXXX");
665 PDEBUG(D_PROBE, "probing for sensor OV2640 or OV9655");
666
667 nb26 = nb96 = 0;
668 for (ntry = 0; ntry < 4; ntry++) {
669 ctrl_out(gspca_dev, 0x40, 1, 0x0040, 0x0000,
670 0, NULL);
671 msleep(3);
672 ctrl_out(gspca_dev, 0x40, 1, 0x6000, 0x800a,
673 0, NULL);
674 msleep(10);
675
676 /* Wait for 26(OV2640) or 96(OV9655) */
677 ctrl_in(gspca_dev, 0xc0, 2, 0x6000, 0x800a,
678 1, &probe);
679
680 if (probe == 0x26 || probe == 0x40) {
681 PDEBUG(D_PROBE,
682 "probe=0x%02x -> OV2640",
683 probe);
684 sd->sensor = ID_OV2640;
685 nb26 += 4;
686 break;
687 }
688 if (probe == 0x96 || probe == 0x55) {
689 PDEBUG(D_PROBE,
690 "probe=0x%02x -> OV9655",
691 probe);
692 sd->sensor = ID_OV9655;
693 nb96 += 4;
694 break;
695 }
696 PDEBUG(D_PROBE, "probe=0x%02x", probe);
697 if (probe == 0x00)
698 nb26++;
699 if (probe == 0xff)
700 nb96++;
701 msleep(3);
702 }
703 if (nb26 < 4 && nb96 < 4)
704 return -1;
705 } else {
706 PDEBUG(D_PROBE, "Not any 0xff -> MI2020");
707 sd->sensor = ID_MI2020;
708 }
709 }
710
711 if (_MI1320_) {
712 PDEBUG(D_PROBE, "05e3:f191 sensor MI1320 (1.3M)");
713 } else if (_MI2020_) {
714 PDEBUG(D_PROBE, "05e3:0503 sensor MI2020 (2.0M)");
715 } else if (_OV9655_) {
716 PDEBUG(D_PROBE, "05e3:0503 sensor OV9655 (1.3M)");
717 } else if (_OV2640_) {
718 PDEBUG(D_PROBE, "05e3:0503 sensor OV2640 (2.0M)");
719 } else {
720 PDEBUG(D_PROBE, "***** Unknown sensor *****");
721 return -1;
722 }
723
724 return 0;
725 }
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