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path: root/drivers/media/video/pwc/pwc-ctrl.c
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-rw-r--r--drivers/media/video/pwc/pwc-ctrl.c1541
1 files changed, 1541 insertions, 0 deletions
diff --git a/drivers/media/video/pwc/pwc-ctrl.c b/drivers/media/video/pwc/pwc-ctrl.c
new file mode 100644
index 000000000000..4ba549bfa0e0
--- /dev/null
+++ b/drivers/media/video/pwc/pwc-ctrl.c
@@ -0,0 +1,1541 @@
1/* Driver for Philips webcam
2 Functions that send various control messages to the webcam, including
3 video modes.
4 (C) 1999-2003 Nemosoft Unv.
5 (C) 2004 Luc Saillard (luc@saillard.org)
6
7 NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx
8 driver and thus may have bugs that are not present in the original version.
9 Please send bug reports and support requests to <luc@saillard.org>.
10
11 NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx
12 driver and thus may have bugs that are not present in the original version.
13 Please send bug reports and support requests to <luc@saillard.org>.
14 The decompression routines have been implemented by reverse-engineering the
15 Nemosoft binary pwcx module. Caveat emptor.
16
17 This program is free software; you can redistribute it and/or modify
18 it under the terms of the GNU General Public License as published by
19 the Free Software Foundation; either version 2 of the License, or
20 (at your option) any later version.
21
22 This program is distributed in the hope that it will be useful,
23 but WITHOUT ANY WARRANTY; without even the implied warranty of
24 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 GNU General Public License for more details.
26
27 You should have received a copy of the GNU General Public License
28 along with this program; if not, write to the Free Software
29 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
30*/
31
32/*
33 Changes
34 2001/08/03 Alvarado Added methods for changing white balance and
35 red/green gains
36 */
37
38/* Control functions for the cam; brightness, contrast, video mode, etc. */
39
40#ifdef __KERNEL__
41#include <asm/uaccess.h>
42#endif
43#include <asm/errno.h>
44
45#include "pwc.h"
46#include "pwc-ioctl.h"
47#include "pwc-uncompress.h"
48#include "pwc-kiara.h"
49#include "pwc-timon.h"
50
51/* Request types: video */
52#define SET_LUM_CTL 0x01
53#define GET_LUM_CTL 0x02
54#define SET_CHROM_CTL 0x03
55#define GET_CHROM_CTL 0x04
56#define SET_STATUS_CTL 0x05
57#define GET_STATUS_CTL 0x06
58#define SET_EP_STREAM_CTL 0x07
59#define GET_EP_STREAM_CTL 0x08
60#define SET_MPT_CTL 0x0D
61#define GET_MPT_CTL 0x0E
62
63/* Selectors for the Luminance controls [GS]ET_LUM_CTL */
64#define AGC_MODE_FORMATTER 0x2000
65#define PRESET_AGC_FORMATTER 0x2100
66#define SHUTTER_MODE_FORMATTER 0x2200
67#define PRESET_SHUTTER_FORMATTER 0x2300
68#define PRESET_CONTOUR_FORMATTER 0x2400
69#define AUTO_CONTOUR_FORMATTER 0x2500
70#define BACK_LIGHT_COMPENSATION_FORMATTER 0x2600
71#define CONTRAST_FORMATTER 0x2700
72#define DYNAMIC_NOISE_CONTROL_FORMATTER 0x2800
73#define FLICKERLESS_MODE_FORMATTER 0x2900
74#define AE_CONTROL_SPEED 0x2A00
75#define BRIGHTNESS_FORMATTER 0x2B00
76#define GAMMA_FORMATTER 0x2C00
77
78/* Selectors for the Chrominance controls [GS]ET_CHROM_CTL */
79#define WB_MODE_FORMATTER 0x1000
80#define AWB_CONTROL_SPEED_FORMATTER 0x1100
81#define AWB_CONTROL_DELAY_FORMATTER 0x1200
82#define PRESET_MANUAL_RED_GAIN_FORMATTER 0x1300
83#define PRESET_MANUAL_BLUE_GAIN_FORMATTER 0x1400
84#define COLOUR_MODE_FORMATTER 0x1500
85#define SATURATION_MODE_FORMATTER1 0x1600
86#define SATURATION_MODE_FORMATTER2 0x1700
87
88/* Selectors for the Status controls [GS]ET_STATUS_CTL */
89#define SAVE_USER_DEFAULTS_FORMATTER 0x0200
90#define RESTORE_USER_DEFAULTS_FORMATTER 0x0300
91#define RESTORE_FACTORY_DEFAULTS_FORMATTER 0x0400
92#define READ_AGC_FORMATTER 0x0500
93#define READ_SHUTTER_FORMATTER 0x0600
94#define READ_RED_GAIN_FORMATTER 0x0700
95#define READ_BLUE_GAIN_FORMATTER 0x0800
96#define SENSOR_TYPE_FORMATTER1 0x0C00
97#define READ_RAW_Y_MEAN_FORMATTER 0x3100
98#define SET_POWER_SAVE_MODE_FORMATTER 0x3200
99#define MIRROR_IMAGE_FORMATTER 0x3300
100#define LED_FORMATTER 0x3400
101#define SENSOR_TYPE_FORMATTER2 0x3700
102
103/* Formatters for the Video Endpoint controls [GS]ET_EP_STREAM_CTL */
104#define VIDEO_OUTPUT_CONTROL_FORMATTER 0x0100
105
106/* Formatters for the motorized pan & tilt [GS]ET_MPT_CTL */
107#define PT_RELATIVE_CONTROL_FORMATTER 0x01
108#define PT_RESET_CONTROL_FORMATTER 0x02
109#define PT_STATUS_FORMATTER 0x03
110
111static const char *size2name[PSZ_MAX] =
112{
113 "subQCIF",
114 "QSIF",
115 "QCIF",
116 "SIF",
117 "CIF",
118 "VGA",
119};
120
121/********/
122
123/* Entries for the Nala (645/646) camera; the Nala doesn't have compression
124 preferences, so you either get compressed or non-compressed streams.
125
126 An alternate value of 0 means this mode is not available at all.
127 */
128
129struct Nala_table_entry {
130 char alternate; /* USB alternate setting */
131 int compressed; /* Compressed yes/no */
132
133 unsigned char mode[3]; /* precomputed mode table */
134};
135
136static struct Nala_table_entry Nala_table[PSZ_MAX][8] =
137{
138#include "pwc-nala.h"
139};
140
141
142/****************************************************************************/
143
144
145#define SendControlMsg(request, value, buflen) \
146 usb_control_msg(pdev->udev, usb_sndctrlpipe(pdev->udev, 0), \
147 request, \
148 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, \
149 value, \
150 pdev->vcinterface, \
151 &buf, buflen, 500)
152
153#define RecvControlMsg(request, value, buflen) \
154 usb_control_msg(pdev->udev, usb_rcvctrlpipe(pdev->udev, 0), \
155 request, \
156 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, \
157 value, \
158 pdev->vcinterface, \
159 &buf, buflen, 500)
160
161
162#if PWC_DEBUG
163void pwc_hexdump(void *p, int len)
164{
165 int i;
166 unsigned char *s;
167 char buf[100], *d;
168
169 s = (unsigned char *)p;
170 d = buf;
171 *d = '\0';
172 Debug("Doing hexdump @ %p, %d bytes.\n", p, len);
173 for (i = 0; i < len; i++) {
174 d += sprintf(d, "%02X ", *s++);
175 if ((i & 0xF) == 0xF) {
176 Debug("%s\n", buf);
177 d = buf;
178 *d = '\0';
179 }
180 }
181 if ((i & 0xF) != 0)
182 Debug("%s\n", buf);
183}
184#endif
185
186static inline int send_video_command(struct usb_device *udev, int index, void *buf, int buflen)
187{
188 return usb_control_msg(udev,
189 usb_sndctrlpipe(udev, 0),
190 SET_EP_STREAM_CTL,
191 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
192 VIDEO_OUTPUT_CONTROL_FORMATTER,
193 index,
194 buf, buflen, 1000);
195}
196
197
198
199static inline int set_video_mode_Nala(struct pwc_device *pdev, int size, int frames)
200{
201 unsigned char buf[3];
202 int ret, fps;
203 struct Nala_table_entry *pEntry;
204 int frames2frames[31] =
205 { /* closest match of framerate */
206 0, 0, 0, 0, 4, /* 0-4 */
207 5, 5, 7, 7, 10, /* 5-9 */
208 10, 10, 12, 12, 15, /* 10-14 */
209 15, 15, 15, 20, 20, /* 15-19 */
210 20, 20, 20, 24, 24, /* 20-24 */
211 24, 24, 24, 24, 24, /* 25-29 */
212 24 /* 30 */
213 };
214 int frames2table[31] =
215 { 0, 0, 0, 0, 0, /* 0-4 */
216 1, 1, 1, 2, 2, /* 5-9 */
217 3, 3, 4, 4, 4, /* 10-14 */
218 5, 5, 5, 5, 5, /* 15-19 */
219 6, 6, 6, 6, 7, /* 20-24 */
220 7, 7, 7, 7, 7, /* 25-29 */
221 7 /* 30 */
222 };
223
224 if (size < 0 || size > PSZ_CIF || frames < 4 || frames > 25)
225 return -EINVAL;
226 frames = frames2frames[frames];
227 fps = frames2table[frames];
228 pEntry = &Nala_table[size][fps];
229 if (pEntry->alternate == 0)
230 return -EINVAL;
231
232 if (pEntry->compressed)
233 return -ENOENT; /* Not supported. */
234
235 memcpy(buf, pEntry->mode, 3);
236 ret = send_video_command(pdev->udev, pdev->vendpoint, buf, 3);
237 if (ret < 0) {
238 Debug("Failed to send video command... %d\n", ret);
239 return ret;
240 }
241 if (pEntry->compressed && pdev->vpalette != VIDEO_PALETTE_RAW)
242 {
243 switch(pdev->type) {
244 case 645:
245 case 646:
246/* pwc_dec1_init(pdev->type, pdev->release, buf, pdev->decompress_data); */
247 break;
248
249 case 675:
250 case 680:
251 case 690:
252 case 720:
253 case 730:
254 case 740:
255 case 750:
256/* pwc_dec23_init(pdev->type, pdev->release, buf, pdev->decompress_data); */
257 break;
258 }
259 }
260
261 pdev->cmd_len = 3;
262 memcpy(pdev->cmd_buf, buf, 3);
263
264 /* Set various parameters */
265 pdev->vframes = frames;
266 pdev->vsize = size;
267 pdev->valternate = pEntry->alternate;
268 pdev->image = pwc_image_sizes[size];
269 pdev->frame_size = (pdev->image.x * pdev->image.y * 3) / 2;
270 if (pEntry->compressed) {
271 if (pdev->release < 5) { /* 4 fold compression */
272 pdev->vbandlength = 528;
273 pdev->frame_size /= 4;
274 }
275 else {
276 pdev->vbandlength = 704;
277 pdev->frame_size /= 3;
278 }
279 }
280 else
281 pdev->vbandlength = 0;
282 return 0;
283}
284
285
286static inline int set_video_mode_Timon(struct pwc_device *pdev, int size, int frames, int compression, int snapshot)
287{
288 unsigned char buf[13];
289 const struct Timon_table_entry *pChoose;
290 int ret, fps;
291
292 if (size >= PSZ_MAX || frames < 5 || frames > 30 || compression < 0 || compression > 3)
293 return -EINVAL;
294 if (size == PSZ_VGA && frames > 15)
295 return -EINVAL;
296 fps = (frames / 5) - 1;
297
298 /* Find a supported framerate with progressively higher compression ratios
299 if the preferred ratio is not available.
300 */
301 pChoose = NULL;
302 while (compression <= 3) {
303 pChoose = &Timon_table[size][fps][compression];
304 if (pChoose->alternate != 0)
305 break;
306 compression++;
307 }
308 if (pChoose == NULL || pChoose->alternate == 0)
309 return -ENOENT; /* Not supported. */
310
311 memcpy(buf, pChoose->mode, 13);
312 if (snapshot)
313 buf[0] |= 0x80;
314 ret = send_video_command(pdev->udev, pdev->vendpoint, buf, 13);
315 if (ret < 0)
316 return ret;
317
318/* if (pChoose->bandlength > 0 && pdev->vpalette != VIDEO_PALETTE_RAW)
319 pwc_dec23_init(pdev->type, pdev->release, buf, pdev->decompress_data); */
320
321 pdev->cmd_len = 13;
322 memcpy(pdev->cmd_buf, buf, 13);
323
324 /* Set various parameters */
325 pdev->vframes = frames;
326 pdev->vsize = size;
327 pdev->vsnapshot = snapshot;
328 pdev->valternate = pChoose->alternate;
329 pdev->image = pwc_image_sizes[size];
330 pdev->vbandlength = pChoose->bandlength;
331 if (pChoose->bandlength > 0)
332 pdev->frame_size = (pChoose->bandlength * pdev->image.y) / 4;
333 else
334 pdev->frame_size = (pdev->image.x * pdev->image.y * 12) / 8;
335 return 0;
336}
337
338
339static inline int set_video_mode_Kiara(struct pwc_device *pdev, int size, int frames, int compression, int snapshot)
340{
341 const struct Kiara_table_entry *pChoose = NULL;
342 int fps, ret;
343 unsigned char buf[12];
344 struct Kiara_table_entry RawEntry = {6, 773, 1272, {0xAD, 0xF4, 0x10, 0x27, 0xB6, 0x24, 0x96, 0x02, 0x30, 0x05, 0x03, 0x80}};
345
346 if (size >= PSZ_MAX || frames < 5 || frames > 30 || compression < 0 || compression > 3)
347 return -EINVAL;
348 if (size == PSZ_VGA && frames > 15)
349 return -EINVAL;
350 fps = (frames / 5) - 1;
351
352 /* special case: VGA @ 5 fps and snapshot is raw bayer mode */
353 if (size == PSZ_VGA && frames == 5 && snapshot)
354 {
355 /* Only available in case the raw palette is selected or
356 we have the decompressor available. This mode is
357 only available in compressed form
358 */
359 if (pdev->vpalette == VIDEO_PALETTE_RAW)
360 {
361 Info("Choosing VGA/5 BAYER mode (%d).\n", pdev->vpalette);
362 pChoose = &RawEntry;
363 }
364 else
365 {
366 Info("VGA/5 BAYER mode _must_ have a decompressor available, or use RAW palette.\n");
367 }
368 }
369 else
370 {
371 /* Find a supported framerate with progressively higher compression ratios
372 if the preferred ratio is not available.
373 Skip this step when using RAW modes.
374 */
375 while (compression <= 3) {
376 pChoose = &Kiara_table[size][fps][compression];
377 if (pChoose->alternate != 0)
378 break;
379 compression++;
380 }
381 }
382 if (pChoose == NULL || pChoose->alternate == 0)
383 return -ENOENT; /* Not supported. */
384
385 Debug("Using alternate setting %d.\n", pChoose->alternate);
386
387 /* usb_control_msg won't take staticly allocated arrays as argument?? */
388 memcpy(buf, pChoose->mode, 12);
389 if (snapshot)
390 buf[0] |= 0x80;
391
392 /* Firmware bug: video endpoint is 5, but commands are sent to endpoint 4 */
393 ret = send_video_command(pdev->udev, 4 /* pdev->vendpoint */, buf, 12);
394 if (ret < 0)
395 return ret;
396
397/* if (pChoose->bandlength > 0 && pdev->vpalette != VIDEO_PALETTE_RAW)
398 pwc_dec23_init(pdev->type, pdev->release, buf, pdev->decompress_data); */
399
400 pdev->cmd_len = 12;
401 memcpy(pdev->cmd_buf, buf, 12);
402 /* All set and go */
403 pdev->vframes = frames;
404 pdev->vsize = size;
405 pdev->vsnapshot = snapshot;
406 pdev->valternate = pChoose->alternate;
407 pdev->image = pwc_image_sizes[size];
408 pdev->vbandlength = pChoose->bandlength;
409 if (pdev->vbandlength > 0)
410 pdev->frame_size = (pdev->vbandlength * pdev->image.y) / 4;
411 else
412 pdev->frame_size = (pdev->image.x * pdev->image.y * 12) / 8;
413 return 0;
414}
415
416
417
418static void pwc_set_image_buffer_size(struct pwc_device *pdev)
419{
420 int i, factor = 0, filler = 0;
421
422 /* for PALETTE_YUV420P */
423 switch(pdev->vpalette)
424 {
425 case VIDEO_PALETTE_YUV420P:
426 factor = 6;
427 filler = 128;
428 break;
429 case VIDEO_PALETTE_RAW:
430 factor = 6; /* can be uncompressed YUV420P */
431 filler = 0;
432 break;
433 }
434
435 /* Set sizes in bytes */
436 pdev->image.size = pdev->image.x * pdev->image.y * factor / 4;
437 pdev->view.size = pdev->view.x * pdev->view.y * factor / 4;
438
439 /* Align offset, or you'll get some very weird results in
440 YUV420 mode... x must be multiple of 4 (to get the Y's in
441 place), and y even (or you'll mixup U & V). This is less of a
442 problem for YUV420P.
443 */
444 pdev->offset.x = ((pdev->view.x - pdev->image.x) / 2) & 0xFFFC;
445 pdev->offset.y = ((pdev->view.y - pdev->image.y) / 2) & 0xFFFE;
446
447 /* Fill buffers with gray or black */
448 for (i = 0; i < MAX_IMAGES; i++) {
449 if (pdev->image_ptr[i] != NULL)
450 memset(pdev->image_ptr[i], filler, pdev->view.size);
451 }
452}
453
454
455
456/**
457 @pdev: device structure
458 @width: viewport width
459 @height: viewport height
460 @frame: framerate, in fps
461 @compression: preferred compression ratio
462 @snapshot: snapshot mode or streaming
463 */
464int pwc_set_video_mode(struct pwc_device *pdev, int width, int height, int frames, int compression, int snapshot)
465{
466 int ret, size;
467
468 Trace(TRACE_FLOW, "set_video_mode(%dx%d @ %d, palette %d).\n", width, height, frames, pdev->vpalette);
469 size = pwc_decode_size(pdev, width, height);
470 if (size < 0) {
471 Debug("Could not find suitable size.\n");
472 return -ERANGE;
473 }
474 Debug("decode_size = %d.\n", size);
475
476 ret = -EINVAL;
477 switch(pdev->type) {
478 case 645:
479 case 646:
480 ret = set_video_mode_Nala(pdev, size, frames);
481 break;
482
483 case 675:
484 case 680:
485 case 690:
486 ret = set_video_mode_Timon(pdev, size, frames, compression, snapshot);
487 break;
488
489 case 720:
490 case 730:
491 case 740:
492 case 750:
493 ret = set_video_mode_Kiara(pdev, size, frames, compression, snapshot);
494 break;
495 }
496 if (ret < 0) {
497 if (ret == -ENOENT)
498 Info("Video mode %s@%d fps is only supported with the decompressor module (pwcx).\n", size2name[size], frames);
499 else {
500 Err("Failed to set video mode %s@%d fps; return code = %d\n", size2name[size], frames, ret);
501 }
502 return ret;
503 }
504 pdev->view.x = width;
505 pdev->view.y = height;
506 pdev->frame_total_size = pdev->frame_size + pdev->frame_header_size + pdev->frame_trailer_size;
507 pwc_set_image_buffer_size(pdev);
508 Trace(TRACE_SIZE, "Set viewport to %dx%d, image size is %dx%d.\n", width, height, pwc_image_sizes[size].x, pwc_image_sizes[size].y);
509 return 0;
510}
511
512
513/* BRIGHTNESS */
514
515int pwc_get_brightness(struct pwc_device *pdev)
516{
517 char buf;
518 int ret;
519
520 ret = RecvControlMsg(GET_LUM_CTL, BRIGHTNESS_FORMATTER, 1);
521 if (ret < 0)
522 return ret;
523 return buf << 9;
524}
525
526int pwc_set_brightness(struct pwc_device *pdev, int value)
527{
528 char buf;
529
530 if (value < 0)
531 value = 0;
532 if (value > 0xffff)
533 value = 0xffff;
534 buf = (value >> 9) & 0x7f;
535 return SendControlMsg(SET_LUM_CTL, BRIGHTNESS_FORMATTER, 1);
536}
537
538/* CONTRAST */
539
540int pwc_get_contrast(struct pwc_device *pdev)
541{
542 char buf;
543 int ret;
544
545 ret = RecvControlMsg(GET_LUM_CTL, CONTRAST_FORMATTER, 1);
546 if (ret < 0)
547 return ret;
548 return buf << 10;
549}
550
551int pwc_set_contrast(struct pwc_device *pdev, int value)
552{
553 char buf;
554
555 if (value < 0)
556 value = 0;
557 if (value > 0xffff)
558 value = 0xffff;
559 buf = (value >> 10) & 0x3f;
560 return SendControlMsg(SET_LUM_CTL, CONTRAST_FORMATTER, 1);
561}
562
563/* GAMMA */
564
565int pwc_get_gamma(struct pwc_device *pdev)
566{
567 char buf;
568 int ret;
569
570 ret = RecvControlMsg(GET_LUM_CTL, GAMMA_FORMATTER, 1);
571 if (ret < 0)
572 return ret;
573 return buf << 11;
574}
575
576int pwc_set_gamma(struct pwc_device *pdev, int value)
577{
578 char buf;
579
580 if (value < 0)
581 value = 0;
582 if (value > 0xffff)
583 value = 0xffff;
584 buf = (value >> 11) & 0x1f;
585 return SendControlMsg(SET_LUM_CTL, GAMMA_FORMATTER, 1);
586}
587
588
589/* SATURATION */
590
591int pwc_get_saturation(struct pwc_device *pdev)
592{
593 char buf;
594 int ret;
595
596 if (pdev->type < 675)
597 return -1;
598 ret = RecvControlMsg(GET_CHROM_CTL, pdev->type < 730 ? SATURATION_MODE_FORMATTER2 : SATURATION_MODE_FORMATTER1, 1);
599 if (ret < 0)
600 return ret;
601 return 32768 + buf * 327;
602}
603
604int pwc_set_saturation(struct pwc_device *pdev, int value)
605{
606 char buf;
607
608 if (pdev->type < 675)
609 return -EINVAL;
610 if (value < 0)
611 value = 0;
612 if (value > 0xffff)
613 value = 0xffff;
614 /* saturation ranges from -100 to +100 */
615 buf = (value - 32768) / 327;
616 return SendControlMsg(SET_CHROM_CTL, pdev->type < 730 ? SATURATION_MODE_FORMATTER2 : SATURATION_MODE_FORMATTER1, 1);
617}
618
619/* AGC */
620
621static inline int pwc_set_agc(struct pwc_device *pdev, int mode, int value)
622{
623 char buf;
624 int ret;
625
626 if (mode)
627 buf = 0x0; /* auto */
628 else
629 buf = 0xff; /* fixed */
630
631 ret = SendControlMsg(SET_LUM_CTL, AGC_MODE_FORMATTER, 1);
632
633 if (!mode && ret >= 0) {
634 if (value < 0)
635 value = 0;
636 if (value > 0xffff)
637 value = 0xffff;
638 buf = (value >> 10) & 0x3F;
639 ret = SendControlMsg(SET_LUM_CTL, PRESET_AGC_FORMATTER, 1);
640 }
641 if (ret < 0)
642 return ret;
643 return 0;
644}
645
646static inline int pwc_get_agc(struct pwc_device *pdev, int *value)
647{
648 unsigned char buf;
649 int ret;
650
651 ret = RecvControlMsg(GET_LUM_CTL, AGC_MODE_FORMATTER, 1);
652 if (ret < 0)
653 return ret;
654
655 if (buf != 0) { /* fixed */
656 ret = RecvControlMsg(GET_LUM_CTL, PRESET_AGC_FORMATTER, 1);
657 if (ret < 0)
658 return ret;
659 if (buf > 0x3F)
660 buf = 0x3F;
661 *value = (buf << 10);
662 }
663 else { /* auto */
664 ret = RecvControlMsg(GET_STATUS_CTL, READ_AGC_FORMATTER, 1);
665 if (ret < 0)
666 return ret;
667 /* Gah... this value ranges from 0x00 ... 0x9F */
668 if (buf > 0x9F)
669 buf = 0x9F;
670 *value = -(48 + buf * 409);
671 }
672
673 return 0;
674}
675
676static inline int pwc_set_shutter_speed(struct pwc_device *pdev, int mode, int value)
677{
678 char buf[2];
679 int speed, ret;
680
681
682 if (mode)
683 buf[0] = 0x0; /* auto */
684 else
685 buf[0] = 0xff; /* fixed */
686
687 ret = SendControlMsg(SET_LUM_CTL, SHUTTER_MODE_FORMATTER, 1);
688
689 if (!mode && ret >= 0) {
690 if (value < 0)
691 value = 0;
692 if (value > 0xffff)
693 value = 0xffff;
694 switch(pdev->type) {
695 case 675:
696 case 680:
697 case 690:
698 /* speed ranges from 0x0 to 0x290 (656) */
699 speed = (value / 100);
700 buf[1] = speed >> 8;
701 buf[0] = speed & 0xff;
702 break;
703 case 720:
704 case 730:
705 case 740:
706 case 750:
707 /* speed seems to range from 0x0 to 0xff */
708 buf[1] = 0;
709 buf[0] = value >> 8;
710 break;
711 }
712
713 ret = SendControlMsg(SET_LUM_CTL, PRESET_SHUTTER_FORMATTER, 2);
714 }
715 return ret;
716}
717
718
719/* POWER */
720
721int pwc_camera_power(struct pwc_device *pdev, int power)
722{
723 char buf;
724
725 if (pdev->type < 675 || (pdev->type < 730 && pdev->release < 6))
726 return 0; /* Not supported by Nala or Timon < release 6 */
727
728 if (power)
729 buf = 0x00; /* active */
730 else
731 buf = 0xFF; /* power save */
732 return SendControlMsg(SET_STATUS_CTL, SET_POWER_SAVE_MODE_FORMATTER, 1);
733}
734
735
736
737/* private calls */
738
739static inline int pwc_restore_user(struct pwc_device *pdev)
740{
741 char buf; /* dummy */
742 return SendControlMsg(SET_STATUS_CTL, RESTORE_USER_DEFAULTS_FORMATTER, 0);
743}
744
745static inline int pwc_save_user(struct pwc_device *pdev)
746{
747 char buf; /* dummy */
748 return SendControlMsg(SET_STATUS_CTL, SAVE_USER_DEFAULTS_FORMATTER, 0);
749}
750
751static inline int pwc_restore_factory(struct pwc_device *pdev)
752{
753 char buf; /* dummy */
754 return SendControlMsg(SET_STATUS_CTL, RESTORE_FACTORY_DEFAULTS_FORMATTER, 0);
755}
756
757 /* ************************************************* */
758 /* Patch by Alvarado: (not in the original version */
759
760 /*
761 * the camera recognizes modes from 0 to 4:
762 *
763 * 00: indoor (incandescant lighting)
764 * 01: outdoor (sunlight)
765 * 02: fluorescent lighting
766 * 03: manual
767 * 04: auto
768 */
769static inline int pwc_set_awb(struct pwc_device *pdev, int mode)
770{
771 char buf;
772 int ret;
773
774 if (mode < 0)
775 mode = 0;
776
777 if (mode > 4)
778 mode = 4;
779
780 buf = mode & 0x07; /* just the lowest three bits */
781
782 ret = SendControlMsg(SET_CHROM_CTL, WB_MODE_FORMATTER, 1);
783
784 if (ret < 0)
785 return ret;
786 return 0;
787}
788
789static inline int pwc_get_awb(struct pwc_device *pdev)
790{
791 unsigned char buf;
792 int ret;
793
794 ret = RecvControlMsg(GET_CHROM_CTL, WB_MODE_FORMATTER, 1);
795
796 if (ret < 0)
797 return ret;
798 return buf;
799}
800
801static inline int pwc_set_red_gain(struct pwc_device *pdev, int value)
802{
803 unsigned char buf;
804
805 if (value < 0)
806 value = 0;
807 if (value > 0xffff)
808 value = 0xffff;
809 /* only the msb is considered */
810 buf = value >> 8;
811 return SendControlMsg(SET_CHROM_CTL, PRESET_MANUAL_RED_GAIN_FORMATTER, 1);
812}
813
814static inline int pwc_get_red_gain(struct pwc_device *pdev, int *value)
815{
816 unsigned char buf;
817 int ret;
818
819 ret = RecvControlMsg(GET_CHROM_CTL, PRESET_MANUAL_RED_GAIN_FORMATTER, 1);
820 if (ret < 0)
821 return ret;
822 *value = buf << 8;
823 return 0;
824}
825
826
827static inline int pwc_set_blue_gain(struct pwc_device *pdev, int value)
828{
829 unsigned char buf;
830
831 if (value < 0)
832 value = 0;
833 if (value > 0xffff)
834 value = 0xffff;
835 /* only the msb is considered */
836 buf = value >> 8;
837 return SendControlMsg(SET_CHROM_CTL, PRESET_MANUAL_BLUE_GAIN_FORMATTER, 1);
838}
839
840static inline int pwc_get_blue_gain(struct pwc_device *pdev, int *value)
841{
842 unsigned char buf;
843 int ret;
844
845 ret = RecvControlMsg(GET_CHROM_CTL, PRESET_MANUAL_BLUE_GAIN_FORMATTER, 1);
846 if (ret < 0)
847 return ret;
848 *value = buf << 8;
849 return 0;
850}
851
852
853/* The following two functions are different, since they only read the
854 internal red/blue gains, which may be different from the manual
855 gains set or read above.
856 */
857static inline int pwc_read_red_gain(struct pwc_device *pdev, int *value)
858{
859 unsigned char buf;
860 int ret;
861
862 ret = RecvControlMsg(GET_STATUS_CTL, READ_RED_GAIN_FORMATTER, 1);
863 if (ret < 0)
864 return ret;
865 *value = buf << 8;
866 return 0;
867}
868
869static inline int pwc_read_blue_gain(struct pwc_device *pdev, int *value)
870{
871 unsigned char buf;
872 int ret;
873
874 ret = RecvControlMsg(GET_STATUS_CTL, READ_BLUE_GAIN_FORMATTER, 1);
875 if (ret < 0)
876 return ret;
877 *value = buf << 8;
878 return 0;
879}
880
881
882static inline int pwc_set_wb_speed(struct pwc_device *pdev, int speed)
883{
884 unsigned char buf;
885
886 /* useful range is 0x01..0x20 */
887 buf = speed / 0x7f0;
888 return SendControlMsg(SET_CHROM_CTL, AWB_CONTROL_SPEED_FORMATTER, 1);
889}
890
891static inline int pwc_get_wb_speed(struct pwc_device *pdev, int *value)
892{
893 unsigned char buf;
894 int ret;
895
896 ret = RecvControlMsg(GET_CHROM_CTL, AWB_CONTROL_SPEED_FORMATTER, 1);
897 if (ret < 0)
898 return ret;
899 *value = buf * 0x7f0;
900 return 0;
901}
902
903
904static inline int pwc_set_wb_delay(struct pwc_device *pdev, int delay)
905{
906 unsigned char buf;
907
908 /* useful range is 0x01..0x3F */
909 buf = (delay >> 10);
910 return SendControlMsg(SET_CHROM_CTL, AWB_CONTROL_DELAY_FORMATTER, 1);
911}
912
913static inline int pwc_get_wb_delay(struct pwc_device *pdev, int *value)
914{
915 unsigned char buf;
916 int ret;
917
918 ret = RecvControlMsg(GET_CHROM_CTL, AWB_CONTROL_DELAY_FORMATTER, 1);
919 if (ret < 0)
920 return ret;
921 *value = buf << 10;
922 return 0;
923}
924
925
926int pwc_set_leds(struct pwc_device *pdev, int on_value, int off_value)
927{
928 unsigned char buf[2];
929
930 if (pdev->type < 730)
931 return 0;
932 on_value /= 100;
933 off_value /= 100;
934 if (on_value < 0)
935 on_value = 0;
936 if (on_value > 0xff)
937 on_value = 0xff;
938 if (off_value < 0)
939 off_value = 0;
940 if (off_value > 0xff)
941 off_value = 0xff;
942
943 buf[0] = on_value;
944 buf[1] = off_value;
945
946 return SendControlMsg(SET_STATUS_CTL, LED_FORMATTER, 2);
947}
948
949static int pwc_get_leds(struct pwc_device *pdev, int *on_value, int *off_value)
950{
951 unsigned char buf[2];
952 int ret;
953
954 if (pdev->type < 730) {
955 *on_value = -1;
956 *off_value = -1;
957 return 0;
958 }
959
960 ret = RecvControlMsg(GET_STATUS_CTL, LED_FORMATTER, 2);
961 if (ret < 0)
962 return ret;
963 *on_value = buf[0] * 100;
964 *off_value = buf[1] * 100;
965 return 0;
966}
967
968static inline int pwc_set_contour(struct pwc_device *pdev, int contour)
969{
970 unsigned char buf;
971 int ret;
972
973 if (contour < 0)
974 buf = 0xff; /* auto contour on */
975 else
976 buf = 0x0; /* auto contour off */
977 ret = SendControlMsg(SET_LUM_CTL, AUTO_CONTOUR_FORMATTER, 1);
978 if (ret < 0)
979 return ret;
980
981 if (contour < 0)
982 return 0;
983 if (contour > 0xffff)
984 contour = 0xffff;
985
986 buf = (contour >> 10); /* contour preset is [0..3f] */
987 ret = SendControlMsg(SET_LUM_CTL, PRESET_CONTOUR_FORMATTER, 1);
988 if (ret < 0)
989 return ret;
990 return 0;
991}
992
993static inline int pwc_get_contour(struct pwc_device *pdev, int *contour)
994{
995 unsigned char buf;
996 int ret;
997
998 ret = RecvControlMsg(GET_LUM_CTL, AUTO_CONTOUR_FORMATTER, 1);
999 if (ret < 0)
1000 return ret;
1001
1002 if (buf == 0) {
1003 /* auto mode off, query current preset value */
1004 ret = RecvControlMsg(GET_LUM_CTL, PRESET_CONTOUR_FORMATTER, 1);
1005 if (ret < 0)
1006 return ret;
1007 *contour = buf << 10;
1008 }
1009 else
1010 *contour = -1;
1011 return 0;
1012}
1013
1014
1015static inline int pwc_set_backlight(struct pwc_device *pdev, int backlight)
1016{
1017 unsigned char buf;
1018
1019 if (backlight)
1020 buf = 0xff;
1021 else
1022 buf = 0x0;
1023 return SendControlMsg(SET_LUM_CTL, BACK_LIGHT_COMPENSATION_FORMATTER, 1);
1024}
1025
1026static inline int pwc_get_backlight(struct pwc_device *pdev, int *backlight)
1027{
1028 int ret;
1029 unsigned char buf;
1030
1031 ret = RecvControlMsg(GET_LUM_CTL, BACK_LIGHT_COMPENSATION_FORMATTER, 1);
1032 if (ret < 0)
1033 return ret;
1034 *backlight = buf;
1035 return 0;
1036}
1037
1038
1039static inline int pwc_set_flicker(struct pwc_device *pdev, int flicker)
1040{
1041 unsigned char buf;
1042
1043 if (flicker)
1044 buf = 0xff;
1045 else
1046 buf = 0x0;
1047 return SendControlMsg(SET_LUM_CTL, FLICKERLESS_MODE_FORMATTER, 1);
1048}
1049
1050static inline int pwc_get_flicker(struct pwc_device *pdev, int *flicker)
1051{
1052 int ret;
1053 unsigned char buf;
1054
1055 ret = RecvControlMsg(GET_LUM_CTL, FLICKERLESS_MODE_FORMATTER, 1);
1056 if (ret < 0)
1057 return ret;
1058 *flicker = buf;
1059 return 0;
1060}
1061
1062
1063static inline int pwc_set_dynamic_noise(struct pwc_device *pdev, int noise)
1064{
1065 unsigned char buf;
1066
1067 if (noise < 0)
1068 noise = 0;
1069 if (noise > 3)
1070 noise = 3;
1071 buf = noise;
1072 return SendControlMsg(SET_LUM_CTL, DYNAMIC_NOISE_CONTROL_FORMATTER, 1);
1073}
1074
1075static inline int pwc_get_dynamic_noise(struct pwc_device *pdev, int *noise)
1076{
1077 int ret;
1078 unsigned char buf;
1079
1080 ret = RecvControlMsg(GET_LUM_CTL, DYNAMIC_NOISE_CONTROL_FORMATTER, 1);
1081 if (ret < 0)
1082 return ret;
1083 *noise = buf;
1084 return 0;
1085}
1086
1087static int pwc_mpt_reset(struct pwc_device *pdev, int flags)
1088{
1089 unsigned char buf;
1090
1091 buf = flags & 0x03; // only lower two bits are currently used
1092 return SendControlMsg(SET_MPT_CTL, PT_RESET_CONTROL_FORMATTER, 1);
1093}
1094
1095static inline int pwc_mpt_set_angle(struct pwc_device *pdev, int pan, int tilt)
1096{
1097 unsigned char buf[4];
1098
1099 /* set new relative angle; angles are expressed in degrees * 100,
1100 but cam as .5 degree resolution, hence divide by 200. Also
1101 the angle must be multiplied by 64 before it's send to
1102 the cam (??)
1103 */
1104 pan = 64 * pan / 100;
1105 tilt = -64 * tilt / 100; /* positive tilt is down, which is not what the user would expect */
1106 buf[0] = pan & 0xFF;
1107 buf[1] = (pan >> 8) & 0xFF;
1108 buf[2] = tilt & 0xFF;
1109 buf[3] = (tilt >> 8) & 0xFF;
1110 return SendControlMsg(SET_MPT_CTL, PT_RELATIVE_CONTROL_FORMATTER, 4);
1111}
1112
1113static inline int pwc_mpt_get_status(struct pwc_device *pdev, struct pwc_mpt_status *status)
1114{
1115 int ret;
1116 unsigned char buf[5];
1117
1118 ret = RecvControlMsg(GET_MPT_CTL, PT_STATUS_FORMATTER, 5);
1119 if (ret < 0)
1120 return ret;
1121 status->status = buf[0] & 0x7; // 3 bits are used for reporting
1122 status->time_pan = (buf[1] << 8) + buf[2];
1123 status->time_tilt = (buf[3] << 8) + buf[4];
1124 return 0;
1125}
1126
1127
1128int pwc_get_cmos_sensor(struct pwc_device *pdev, int *sensor)
1129{
1130 unsigned char buf;
1131 int ret = -1, request;
1132
1133 if (pdev->type < 675)
1134 request = SENSOR_TYPE_FORMATTER1;
1135 else if (pdev->type < 730)
1136 return -1; /* The Vesta series doesn't have this call */
1137 else
1138 request = SENSOR_TYPE_FORMATTER2;
1139
1140 ret = RecvControlMsg(GET_STATUS_CTL, request, 1);
1141 if (ret < 0)
1142 return ret;
1143 if (pdev->type < 675)
1144 *sensor = buf | 0x100;
1145 else
1146 *sensor = buf;
1147 return 0;
1148}
1149
1150
1151 /* End of Add-Ons */
1152 /* ************************************************* */
1153
1154
1155int pwc_ioctl(struct pwc_device *pdev, unsigned int cmd, void *arg)
1156{
1157 int ret = 0;
1158
1159 switch(cmd) {
1160 case VIDIOCPWCRUSER:
1161 {
1162 if (pwc_restore_user(pdev))
1163 ret = -EINVAL;
1164 break;
1165 }
1166
1167 case VIDIOCPWCSUSER:
1168 {
1169 if (pwc_save_user(pdev))
1170 ret = -EINVAL;
1171 break;
1172 }
1173
1174 case VIDIOCPWCFACTORY:
1175 {
1176 if (pwc_restore_factory(pdev))
1177 ret = -EINVAL;
1178 break;
1179 }
1180
1181 case VIDIOCPWCSCQUAL:
1182 {
1183 int *qual = arg;
1184
1185 if (*qual < 0 || *qual > 3)
1186 ret = -EINVAL;
1187 else
1188 ret = pwc_try_video_mode(pdev, pdev->view.x, pdev->view.y, pdev->vframes, *qual, pdev->vsnapshot);
1189 if (ret >= 0)
1190 pdev->vcompression = *qual;
1191 break;
1192 }
1193
1194 case VIDIOCPWCGCQUAL:
1195 {
1196 int *qual = arg;
1197 *qual = pdev->vcompression;
1198 break;
1199 }
1200
1201 case VIDIOCPWCPROBE:
1202 {
1203 struct pwc_probe *probe = arg;
1204 strcpy(probe->name, pdev->vdev->name);
1205 probe->type = pdev->type;
1206 break;
1207 }
1208
1209 case VIDIOCPWCGSERIAL:
1210 {
1211 struct pwc_serial *serial = arg;
1212 strcpy(serial->serial, pdev->serial);
1213 break;
1214 }
1215
1216 case VIDIOCPWCSAGC:
1217 {
1218 int *agc = arg;
1219 if (pwc_set_agc(pdev, *agc < 0 ? 1 : 0, *agc))
1220 ret = -EINVAL;
1221 break;
1222 }
1223
1224 case VIDIOCPWCGAGC:
1225 {
1226 int *agc = arg;
1227
1228 if (pwc_get_agc(pdev, agc))
1229 ret = -EINVAL;
1230 break;
1231 }
1232
1233 case VIDIOCPWCSSHUTTER:
1234 {
1235 int *shutter_speed = arg;
1236 ret = pwc_set_shutter_speed(pdev, *shutter_speed < 0 ? 1 : 0, *shutter_speed);
1237 break;
1238 }
1239
1240 case VIDIOCPWCSAWB:
1241 {
1242 struct pwc_whitebalance *wb = arg;
1243
1244 ret = pwc_set_awb(pdev, wb->mode);
1245 if (ret >= 0 && wb->mode == PWC_WB_MANUAL) {
1246 pwc_set_red_gain(pdev, wb->manual_red);
1247 pwc_set_blue_gain(pdev, wb->manual_blue);
1248 }
1249 break;
1250 }
1251
1252 case VIDIOCPWCGAWB:
1253 {
1254 struct pwc_whitebalance *wb = arg;
1255
1256 memset(wb, 0, sizeof(struct pwc_whitebalance));
1257 wb->mode = pwc_get_awb(pdev);
1258 if (wb->mode < 0)
1259 ret = -EINVAL;
1260 else {
1261 if (wb->mode == PWC_WB_MANUAL) {
1262 ret = pwc_get_red_gain(pdev, &wb->manual_red);
1263 if (ret < 0)
1264 break;
1265 ret = pwc_get_blue_gain(pdev, &wb->manual_blue);
1266 if (ret < 0)
1267 break;
1268 }
1269 if (wb->mode == PWC_WB_AUTO) {
1270 ret = pwc_read_red_gain(pdev, &wb->read_red);
1271 if (ret < 0)
1272 break;
1273 ret = pwc_read_blue_gain(pdev, &wb->read_blue);
1274 if (ret < 0)
1275 break;
1276 }
1277 }
1278 break;
1279 }
1280
1281 case VIDIOCPWCSAWBSPEED:
1282 {
1283 struct pwc_wb_speed *wbs = arg;
1284
1285 if (wbs->control_speed > 0) {
1286 ret = pwc_set_wb_speed(pdev, wbs->control_speed);
1287 }
1288 if (wbs->control_delay > 0) {
1289 ret = pwc_set_wb_delay(pdev, wbs->control_delay);
1290 }
1291 break;
1292 }
1293
1294 case VIDIOCPWCGAWBSPEED:
1295 {
1296 struct pwc_wb_speed *wbs = arg;
1297
1298 ret = pwc_get_wb_speed(pdev, &wbs->control_speed);
1299 if (ret < 0)
1300 break;
1301 ret = pwc_get_wb_delay(pdev, &wbs->control_delay);
1302 if (ret < 0)
1303 break;
1304 break;
1305 }
1306
1307 case VIDIOCPWCSLED:
1308 {
1309 struct pwc_leds *leds = arg;
1310 ret = pwc_set_leds(pdev, leds->led_on, leds->led_off);
1311 break;
1312 }
1313
1314
1315 case VIDIOCPWCGLED:
1316 {
1317 struct pwc_leds *leds = arg;
1318 ret = pwc_get_leds(pdev, &leds->led_on, &leds->led_off);
1319 break;
1320 }
1321
1322 case VIDIOCPWCSCONTOUR:
1323 {
1324 int *contour = arg;
1325 ret = pwc_set_contour(pdev, *contour);
1326 break;
1327 }
1328
1329 case VIDIOCPWCGCONTOUR:
1330 {
1331 int *contour = arg;
1332 ret = pwc_get_contour(pdev, contour);
1333 break;
1334 }
1335
1336 case VIDIOCPWCSBACKLIGHT:
1337 {
1338 int *backlight = arg;
1339 ret = pwc_set_backlight(pdev, *backlight);
1340 break;
1341 }
1342
1343 case VIDIOCPWCGBACKLIGHT:
1344 {
1345 int *backlight = arg;
1346 ret = pwc_get_backlight(pdev, backlight);
1347 break;
1348 }
1349
1350 case VIDIOCPWCSFLICKER:
1351 {
1352 int *flicker = arg;
1353 ret = pwc_set_flicker(pdev, *flicker);
1354 break;
1355 }
1356
1357 case VIDIOCPWCGFLICKER:
1358 {
1359 int *flicker = arg;
1360 ret = pwc_get_flicker(pdev, flicker);
1361 break;
1362 }
1363
1364 case VIDIOCPWCSDYNNOISE:
1365 {
1366 int *dynnoise = arg;
1367 ret = pwc_set_dynamic_noise(pdev, *dynnoise);
1368 break;
1369 }
1370
1371 case VIDIOCPWCGDYNNOISE:
1372 {
1373 int *dynnoise = arg;
1374 ret = pwc_get_dynamic_noise(pdev, dynnoise);
1375 break;
1376 }
1377
1378 case VIDIOCPWCGREALSIZE:
1379 {
1380 struct pwc_imagesize *size = arg;
1381 size->width = pdev->image.x;
1382 size->height = pdev->image.y;
1383 break;
1384 }
1385
1386 case VIDIOCPWCMPTRESET:
1387 {
1388 if (pdev->features & FEATURE_MOTOR_PANTILT)
1389 {
1390 int *flags = arg;
1391
1392 ret = pwc_mpt_reset(pdev, *flags);
1393 if (ret >= 0)
1394 {
1395 pdev->pan_angle = 0;
1396 pdev->tilt_angle = 0;
1397 }
1398 }
1399 else
1400 {
1401 ret = -ENXIO;
1402 }
1403 break;
1404 }
1405
1406 case VIDIOCPWCMPTGRANGE:
1407 {
1408 if (pdev->features & FEATURE_MOTOR_PANTILT)
1409 {
1410 struct pwc_mpt_range *range = arg;
1411 *range = pdev->angle_range;
1412 }
1413 else
1414 {
1415 ret = -ENXIO;
1416 }
1417 break;
1418 }
1419
1420 case VIDIOCPWCMPTSANGLE:
1421 {
1422 int new_pan, new_tilt;
1423
1424 if (pdev->features & FEATURE_MOTOR_PANTILT)
1425 {
1426 struct pwc_mpt_angles *angles = arg;
1427 /* The camera can only set relative angles, so
1428 do some calculations when getting an absolute angle .
1429 */
1430 if (angles->absolute)
1431 {
1432 new_pan = angles->pan;
1433 new_tilt = angles->tilt;
1434 }
1435 else
1436 {
1437 new_pan = pdev->pan_angle + angles->pan;
1438 new_tilt = pdev->tilt_angle + angles->tilt;
1439 }
1440 /* check absolute ranges */
1441 if (new_pan < pdev->angle_range.pan_min ||
1442 new_pan > pdev->angle_range.pan_max ||
1443 new_tilt < pdev->angle_range.tilt_min ||
1444 new_tilt > pdev->angle_range.tilt_max)
1445 {
1446 ret = -ERANGE;
1447 }
1448 else
1449 {
1450 /* go to relative range, check again */
1451 new_pan -= pdev->pan_angle;
1452 new_tilt -= pdev->tilt_angle;
1453 /* angles are specified in degrees * 100, thus the limit = 36000 */
1454 if (new_pan < -36000 || new_pan > 36000 || new_tilt < -36000 || new_tilt > 36000)
1455 ret = -ERANGE;
1456 }
1457 if (ret == 0) /* no errors so far */
1458 {
1459 ret = pwc_mpt_set_angle(pdev, new_pan, new_tilt);
1460 if (ret >= 0)
1461 {
1462 pdev->pan_angle += new_pan;
1463 pdev->tilt_angle += new_tilt;
1464 }
1465 if (ret == -EPIPE) /* stall -> out of range */
1466 ret = -ERANGE;
1467 }
1468 }
1469 else
1470 {
1471 ret = -ENXIO;
1472 }
1473 break;
1474 }
1475
1476 case VIDIOCPWCMPTGANGLE:
1477 {
1478
1479 if (pdev->features & FEATURE_MOTOR_PANTILT)
1480 {
1481 struct pwc_mpt_angles *angles = arg;
1482
1483 angles->absolute = 1;
1484 angles->pan = pdev->pan_angle;
1485 angles->tilt = pdev->tilt_angle;
1486 }
1487 else
1488 {
1489 ret = -ENXIO;
1490 }
1491 break;
1492 }
1493
1494 case VIDIOCPWCMPTSTATUS:
1495 {
1496 if (pdev->features & FEATURE_MOTOR_PANTILT)
1497 {
1498 struct pwc_mpt_status *status = arg;
1499 ret = pwc_mpt_get_status(pdev, status);
1500 }
1501 else
1502 {
1503 ret = -ENXIO;
1504 }
1505 break;
1506 }
1507
1508 case VIDIOCPWCGVIDCMD:
1509 {
1510 struct pwc_video_command *cmd = arg;
1511
1512 cmd->type = pdev->type;
1513 cmd->release = pdev->release;
1514 cmd->command_len = pdev->cmd_len;
1515 memcpy(&cmd->command_buf, pdev->cmd_buf, pdev->cmd_len);
1516 cmd->bandlength = pdev->vbandlength;
1517 cmd->frame_size = pdev->frame_size;
1518 break;
1519 }
1520 /*
1521 case VIDIOCPWCGVIDTABLE:
1522 {
1523 struct pwc_table_init_buffer *table = arg;
1524 table->len = pdev->cmd_len;
1525 memcpy(&table->buffer, pdev->decompress_data, pdev->decompressor->table_size);
1526 break;
1527 }
1528 */
1529
1530 default:
1531 ret = -ENOIOCTLCMD;
1532 break;
1533 }
1534
1535 if (ret > 0)
1536 return 0;
1537 return ret;
1538}
1539
1540
1541
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-14 16:59:36 -0500