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[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 gspca_dev->nbalt = 4;
341
342 switch (sd->sensor) {
343 case ID_MI1320:
344 gspca_dev->sd_desc = &sd_desc_mi1320;
345 cam->cam_mode = mi1320_mode;
346 cam->nmodes = ARRAY_SIZE(mi1320_mode);
347 dev_init_settings = mi1320_init_settings;
348 break;
349
350 case ID_MI2020:
351 gspca_dev->sd_desc = &sd_desc_mi2020;
352 cam->cam_mode = mi2020_mode;
353 cam->nmodes = ARRAY_SIZE(mi2020_mode);
354 dev_init_settings = mi2020_init_settings;
355 break;
356
357 case ID_OV2640:
358 gspca_dev->sd_desc = &sd_desc_ov2640;
359 cam->cam_mode = ov2640_mode;
360 cam->nmodes = ARRAY_SIZE(ov2640_mode);
361 dev_init_settings = ov2640_init_settings;
362 break;
363
364 case ID_OV9655:
365 gspca_dev->sd_desc = &sd_desc_ov9655;
366 cam->cam_mode = ov9655_mode;
367 cam->nmodes = ARRAY_SIZE(ov9655_mode);
368 dev_init_settings = ov9655_init_settings;
369 break;
370 }
371
372 dev_init_settings(gspca_dev);
373 if (AC50Hz != 0xff)
374 ((struct sd *) gspca_dev)->vcur.AC50Hz = AC50Hz;
375 gl860_build_control_table(gspca_dev);
376
377 return 0;
378 }
379
380 /* This function is called at probe time after sd_config */
381 static int sd_init(struct gspca_dev *gspca_dev)
382 {
383 struct sd *sd = (struct sd *) gspca_dev;
384
385 return sd->dev_init_at_startup(gspca_dev);
386 }
387
388 /* This function is called before to choose the alt setting */
389 static int sd_isoc_init(struct gspca_dev *gspca_dev)
390 {
391 struct sd *sd = (struct sd *) gspca_dev;
392
393 return sd->dev_configure_alt(gspca_dev);
394 }
395
396 /* This function is called to start the webcam */
397 static int sd_start(struct gspca_dev *gspca_dev)
398 {
399 struct sd *sd = (struct sd *) gspca_dev;
400
401 return sd->dev_init_pre_alt(gspca_dev);
402 }
403
404 /* This function is called to stop the webcam */
405 static void sd_stop0(struct gspca_dev *gspca_dev)
406 {
407 struct sd *sd = (struct sd *) gspca_dev;
408
409 return sd->dev_post_unset_alt(gspca_dev);
410 }
411
412 /* This function is called when an image is being received */
413 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
414 u8 *data, int len)
415 {
416 struct sd *sd = (struct sd *) gspca_dev;
417 static s32 nSkipped;
418
419 s32 mode = (s32) gspca_dev->curr_mode;
420 s32 nToSkip =
421 sd->swapRB * (gspca_dev->cam.cam_mode[mode].bytesperline + 1);
422
423 /* Test only against 0202h, so endianess does not matter */
424 switch (*(s16 *) data) {
425 case 0x0202: /* End of frame, start a new one */
426 gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
427 nSkipped = 0;
428 if (sd->nbIm >= 0 && sd->nbIm < 10)
429 sd->nbIm++;
430 gspca_frame_add(gspca_dev, FIRST_PACKET, NULL, 0);
431 break;
432
433 default:
434 data += 2;
435 len -= 2;
436 if (nSkipped + len <= nToSkip)
437 nSkipped += len;
438 else {
439 if (nSkipped < nToSkip && nSkipped + len > nToSkip) {
440 data += nToSkip - nSkipped;
441 len -= nToSkip - nSkipped;
442 nSkipped = nToSkip + 1;
443 }
444 gspca_frame_add(gspca_dev,
445 INTER_PACKET, data, len);
446 }
447 break;
448 }
449 }
450
451 /* This function is called when an image has been read */
452 /* This function is used to monitor webcam orientation */
453 static void sd_callback(struct gspca_dev *gspca_dev)
454 {
455 struct sd *sd = (struct sd *) gspca_dev;
456
457 if (!_OV9655_) {
458 u8 state;
459 u8 upsideDown;
460
461 /* Probe sensor orientation */
462 ctrl_in(gspca_dev, 0xc0, 2, 0x0000, 0x0000, 1, (void *)&state);
463
464 /* C8/40 means upside-down (looking backwards) */
465 /* D8/50 means right-up (looking onwards) */
466 upsideDown = (state == 0xc8 || state == 0x40);
467
468 if (upsideDown && sd->nbRightUp > -4) {
469 if (sd->nbRightUp > 0)
470 sd->nbRightUp = 0;
471 if (sd->nbRightUp == -3) {
472 sd->mirrorMask = 1;
473 sd->waitSet = 1;
474 }
475 sd->nbRightUp--;
476 }
477 if (!upsideDown && sd->nbRightUp < 4) {
478 if (sd->nbRightUp < 0)
479 sd->nbRightUp = 0;
480 if (sd->nbRightUp == 3) {
481 sd->mirrorMask = 0;
482 sd->waitSet = 1;
483 }
484 sd->nbRightUp++;
485 }
486 }
487
488 if (sd->waitSet)
489 sd->dev_camera_settings(gspca_dev);
490 }
491
492 /*=================== USB driver structure initialisation ==================*/
493
494 static const struct usb_device_id device_table[] = {
495 {USB_DEVICE(0x05e3, 0x0503)},
496 {USB_DEVICE(0x05e3, 0xf191)},
497 {}
498 };
499
500 MODULE_DEVICE_TABLE(usb, device_table);
501
502 static int sd_probe(struct usb_interface *intf,
503 const struct usb_device_id *id)
504 {
505 return gspca_dev_probe(intf, id,
506 &sd_desc_mi1320, sizeof(struct sd), THIS_MODULE);
507 }
508
509 static void sd_disconnect(struct usb_interface *intf)
510 {
511 gspca_disconnect(intf);
512 }
513
514 static struct usb_driver sd_driver = {
515 .name = MODULE_NAME,
516 .id_table = device_table,
517 .probe = sd_probe,
518 .disconnect = sd_disconnect,
519 #ifdef CONFIG_PM
520 .suspend = gspca_suspend,
521 .resume = gspca_resume,
522 #endif
523 };
524
525 /*====================== Init and Exit module functions ====================*/
526
527 module_usb_driver(sd_driver);
528
529 /*==========================================================================*/
530
531 int gl860_RTx(struct gspca_dev *gspca_dev,
532 unsigned char pref, u32 req, u16 val, u16 index,
533 s32 len, void *pdata)
534 {
535 struct usb_device *udev = gspca_dev->dev;
536 s32 r = 0;
537
538 if (pref == 0x40) { /* Send */
539 if (len > 0) {
540 memcpy(gspca_dev->usb_buf, pdata, len);
541 r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
542 req, pref, val, index,
543 gspca_dev->usb_buf,
544 len, 400 + 200 * (len > 1));
545 } else {
546 r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
547 req, pref, val, index, NULL, len, 400);
548 }
549 } else { /* Receive */
550 if (len > 0) {
551 r = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
552 req, pref, val, index,
553 gspca_dev->usb_buf,
554 len, 400 + 200 * (len > 1));
555 memcpy(pdata, gspca_dev->usb_buf, len);
556 } else {
557 r = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
558 req, pref, val, index, NULL, len, 400);
559 }
560 }
561
562 if (r < 0)
563 pr_err("ctrl transfer failed %4d [p%02x r%d v%04x i%04x len%d]\n",
564 r, pref, req, val, index, len);
565 else if (len > 1 && r < len)
566 PDEBUG(D_ERR, "short ctrl transfer %d/%d", r, len);
567
568 msleep(1);
569
570 return r;
571 }
572
573 int fetch_validx(struct gspca_dev *gspca_dev, struct validx *tbl, int len)
574 {
575 int n;
576
577 for (n = 0; n < len; n++) {
578 if (tbl[n].idx != 0xffff)
579 ctrl_out(gspca_dev, 0x40, 1, tbl[n].val,
580 tbl[n].idx, 0, NULL);
581 else if (tbl[n].val == 0xffff)
582 break;
583 else
584 msleep(tbl[n].val);
585 }
586 return n;
587 }
588
589 int keep_on_fetching_validx(struct gspca_dev *gspca_dev, struct validx *tbl,
590 int len, int n)
591 {
592 while (++n < len) {
593 if (tbl[n].idx != 0xffff)
594 ctrl_out(gspca_dev, 0x40, 1, tbl[n].val, tbl[n].idx,
595 0, NULL);
596 else if (tbl[n].val == 0xffff)
597 break;
598 else
599 msleep(tbl[n].val);
600 }
601 return n;
602 }
603
604 void fetch_idxdata(struct gspca_dev *gspca_dev, struct idxdata *tbl, int len)
605 {
606 int n;
607
608 for (n = 0; n < len; n++) {
609 if (memcmp(tbl[n].data, "\xff\xff\xff", 3) != 0)
610 ctrl_out(gspca_dev, 0x40, 3, 0x7a00, tbl[n].idx,
611 3, tbl[n].data);
612 else
613 msleep(tbl[n].idx);
614 }
615 }
616
617 static int gl860_guess_sensor(struct gspca_dev *gspca_dev,
618 u16 vendor_id, u16 product_id)
619 {
620 struct sd *sd = (struct sd *) gspca_dev;
621 u8 probe, nb26, nb96, nOV, ntry;
622
623 if (product_id == 0xf191)
624 sd->sensor = ID_MI1320;
625
626 if (sd->sensor == 0xff) {
627 ctrl_in(gspca_dev, 0xc0, 2, 0x0000, 0x0004, 1, &probe);
628 ctrl_in(gspca_dev, 0xc0, 2, 0x0000, 0x0004, 1, &probe);
629
630 ctrl_out(gspca_dev, 0x40, 1, 0x0000, 0x0000, 0, NULL);
631 msleep(3);
632 ctrl_out(gspca_dev, 0x40, 1, 0x0010, 0x0010, 0, NULL);
633 msleep(3);
634 ctrl_out(gspca_dev, 0x40, 1, 0x0008, 0x00c0, 0, NULL);
635 msleep(3);
636 ctrl_out(gspca_dev, 0x40, 1, 0x0001, 0x00c1, 0, NULL);
637 msleep(3);
638 ctrl_out(gspca_dev, 0x40, 1, 0x0001, 0x00c2, 0, NULL);
639 msleep(3);
640 ctrl_out(gspca_dev, 0x40, 1, 0x0020, 0x0006, 0, NULL);
641 msleep(3);
642 ctrl_out(gspca_dev, 0x40, 1, 0x006a, 0x000d, 0, NULL);
643 msleep(56);
644
645 PDEBUG(D_PROBE, "probing for sensor MI2020 or OVXXXX");
646 nOV = 0;
647 for (ntry = 0; ntry < 4; ntry++) {
648 ctrl_out(gspca_dev, 0x40, 1, 0x0040, 0x0000, 0, NULL);
649 msleep(3);
650 ctrl_out(gspca_dev, 0x40, 1, 0x0063, 0x0006, 0, NULL);
651 msleep(3);
652 ctrl_out(gspca_dev, 0x40, 1, 0x7a00, 0x8030, 0, NULL);
653 msleep(10);
654 ctrl_in(gspca_dev, 0xc0, 2, 0x7a00, 0x8030, 1, &probe);
655 PDEBUG(D_PROBE, "probe=0x%02x", probe);
656 if (probe == 0xff)
657 nOV++;
658 }
659
660 if (nOV) {
661 PDEBUG(D_PROBE, "0xff -> OVXXXX");
662 PDEBUG(D_PROBE, "probing for sensor OV2640 or OV9655");
663
664 nb26 = nb96 = 0;
665 for (ntry = 0; ntry < 4; ntry++) {
666 ctrl_out(gspca_dev, 0x40, 1, 0x0040, 0x0000,
667 0, NULL);
668 msleep(3);
669 ctrl_out(gspca_dev, 0x40, 1, 0x6000, 0x800a,
670 0, NULL);
671 msleep(10);
672
673 /* Wait for 26(OV2640) or 96(OV9655) */
674 ctrl_in(gspca_dev, 0xc0, 2, 0x6000, 0x800a,
675 1, &probe);
676
677 if (probe == 0x26 || probe == 0x40) {
678 PDEBUG(D_PROBE,
679 "probe=0x%02x -> OV2640",
680 probe);
681 sd->sensor = ID_OV2640;
682 nb26 += 4;
683 break;
684 }
685 if (probe == 0x96 || probe == 0x55) {
686 PDEBUG(D_PROBE,
687 "probe=0x%02x -> OV9655",
688 probe);
689 sd->sensor = ID_OV9655;
690 nb96 += 4;
691 break;
692 }
693 PDEBUG(D_PROBE, "probe=0x%02x", probe);
694 if (probe == 0x00)
695 nb26++;
696 if (probe == 0xff)
697 nb96++;
698 msleep(3);
699 }
700 if (nb26 < 4 && nb96 < 4)
701 return -1;
702 } else {
703 PDEBUG(D_PROBE, "Not any 0xff -> MI2020");
704 sd->sensor = ID_MI2020;
705 }
706 }
707
708 if (_MI1320_) {
709 PDEBUG(D_PROBE, "05e3:f191 sensor MI1320 (1.3M)");
710 } else if (_MI2020_) {
711 PDEBUG(D_PROBE, "05e3:0503 sensor MI2020 (2.0M)");
712 } else if (_OV9655_) {
713 PDEBUG(D_PROBE, "05e3:0503 sensor OV9655 (1.3M)");
714 } else if (_OV2640_) {
715 PDEBUG(D_PROBE, "05e3:0503 sensor OV2640 (2.0M)");
716 } else {
717 PDEBUG(D_PROBE, "***** Unknown sensor *****");
718 return -1;
719 }
720
721 return 0;
722 }
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