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