1 /* Driver for Philips webcam
2 Functions that send various control messages to the webcam, including
4 (C) 1999-2003 Nemosoft Unv.
5 (C) 2004-2006 Luc Saillard (luc@saillard.org)
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>.
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.
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.
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.
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
34 2001/08/03 Alvarado Added methods for changing white balance and
38 /* Control functions for the cam; brightness, contrast, video mode, etc. */
41 #include <asm/uaccess.h>
43 #include <asm/errno.h>
44 #include <linux/version.h>
47 #include "pwc-uncompress.h"
48 #include "pwc-kiara.h"
49 #include "pwc-timon.h"
51 #include "pwc-dec23.h"
53 /* Request types: video */
54 #define SET_LUM_CTL 0x01
55 #define GET_LUM_CTL 0x02
56 #define SET_CHROM_CTL 0x03
57 #define GET_CHROM_CTL 0x04
58 #define SET_STATUS_CTL 0x05
59 #define GET_STATUS_CTL 0x06
60 #define SET_EP_STREAM_CTL 0x07
61 #define GET_EP_STREAM_CTL 0x08
62 #define GET_XX_CTL 0x09
63 #define SET_XX_CTL 0x0A
64 #define GET_XY_CTL 0x0B
65 #define SET_XY_CTL 0x0C
66 #define SET_MPT_CTL 0x0D
67 #define GET_MPT_CTL 0x0E
69 /* Selectors for the Luminance controls [GS]ET_LUM_CTL */
70 #define AGC_MODE_FORMATTER 0x2000
71 #define PRESET_AGC_FORMATTER 0x2100
72 #define SHUTTER_MODE_FORMATTER 0x2200
73 #define PRESET_SHUTTER_FORMATTER 0x2300
74 #define PRESET_CONTOUR_FORMATTER 0x2400
75 #define AUTO_CONTOUR_FORMATTER 0x2500
76 #define BACK_LIGHT_COMPENSATION_FORMATTER 0x2600
77 #define CONTRAST_FORMATTER 0x2700
78 #define DYNAMIC_NOISE_CONTROL_FORMATTER 0x2800
79 #define FLICKERLESS_MODE_FORMATTER 0x2900
80 #define AE_CONTROL_SPEED 0x2A00
81 #define BRIGHTNESS_FORMATTER 0x2B00
82 #define GAMMA_FORMATTER 0x2C00
84 /* Selectors for the Chrominance controls [GS]ET_CHROM_CTL */
85 #define WB_MODE_FORMATTER 0x1000
86 #define AWB_CONTROL_SPEED_FORMATTER 0x1100
87 #define AWB_CONTROL_DELAY_FORMATTER 0x1200
88 #define PRESET_MANUAL_RED_GAIN_FORMATTER 0x1300
89 #define PRESET_MANUAL_BLUE_GAIN_FORMATTER 0x1400
90 #define COLOUR_MODE_FORMATTER 0x1500
91 #define SATURATION_MODE_FORMATTER1 0x1600
92 #define SATURATION_MODE_FORMATTER2 0x1700
94 /* Selectors for the Status controls [GS]ET_STATUS_CTL */
95 #define SAVE_USER_DEFAULTS_FORMATTER 0x0200
96 #define RESTORE_USER_DEFAULTS_FORMATTER 0x0300
97 #define RESTORE_FACTORY_DEFAULTS_FORMATTER 0x0400
98 #define READ_AGC_FORMATTER 0x0500
99 #define READ_SHUTTER_FORMATTER 0x0600
100 #define READ_RED_GAIN_FORMATTER 0x0700
101 #define READ_BLUE_GAIN_FORMATTER 0x0800
102 #define GET_STATUS_B00 0x0B00
103 #define SENSOR_TYPE_FORMATTER1 0x0C00
104 #define GET_STATUS_3000 0x3000
105 #define READ_RAW_Y_MEAN_FORMATTER 0x3100
106 #define SET_POWER_SAVE_MODE_FORMATTER 0x3200
107 #define MIRROR_IMAGE_FORMATTER 0x3300
108 #define LED_FORMATTER 0x3400
109 #define LOWLIGHT 0x3500
110 #define GET_STATUS_3600 0x3600
111 #define SENSOR_TYPE_FORMATTER2 0x3700
112 #define GET_STATUS_3800 0x3800
113 #define GET_STATUS_4000 0x4000
114 #define GET_STATUS_4100 0x4100 /* Get */
115 #define CTL_STATUS_4200 0x4200 /* [GS] 1 */
117 /* Formatters for the Video Endpoint controls [GS]ET_EP_STREAM_CTL */
118 #define VIDEO_OUTPUT_CONTROL_FORMATTER 0x0100
120 /* Formatters for the motorized pan & tilt [GS]ET_MPT_CTL */
121 #define PT_RELATIVE_CONTROL_FORMATTER 0x01
122 #define PT_RESET_CONTROL_FORMATTER 0x02
123 #define PT_STATUS_FORMATTER 0x03
125 static const char *size2name
[PSZ_MAX
] =
137 /* Entries for the Nala (645/646) camera; the Nala doesn't have compression
138 preferences, so you either get compressed or non-compressed streams.
140 An alternate value of 0 means this mode is not available at all.
143 struct Nala_table_entry
{
144 char alternate
; /* USB alternate setting */
145 int compressed
; /* Compressed yes/no */
147 unsigned char mode
[3]; /* precomputed mode table */
150 static struct Nala_table_entry Nala_table
[PSZ_MAX
][8] =
152 #include "pwc-nala.h"
155 static void pwc_set_image_buffer_size(struct pwc_device
*pdev
);
157 /****************************************************************************/
160 #define SendControlMsg(request, value, buflen) \
161 usb_control_msg(pdev->udev, usb_sndctrlpipe(pdev->udev, 0), \
163 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, \
168 #define RecvControlMsg(request, value, buflen) \
169 usb_control_msg(pdev->udev, usb_rcvctrlpipe(pdev->udev, 0), \
171 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, \
177 static int send_video_command(struct usb_device
*udev
, int index
, void *buf
, int buflen
)
179 return usb_control_msg(udev
,
180 usb_sndctrlpipe(udev
, 0),
182 USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
183 VIDEO_OUTPUT_CONTROL_FORMATTER
,
190 static int set_video_mode_Nala(struct pwc_device
*pdev
, int size
, int frames
)
192 unsigned char buf
[3];
194 struct Nala_table_entry
*pEntry
;
195 int frames2frames
[31] =
196 { /* closest match of framerate */
197 0, 0, 0, 0, 4, /* 0-4 */
198 5, 5, 7, 7, 10, /* 5-9 */
199 10, 10, 12, 12, 15, /* 10-14 */
200 15, 15, 15, 20, 20, /* 15-19 */
201 20, 20, 20, 24, 24, /* 20-24 */
202 24, 24, 24, 24, 24, /* 25-29 */
205 int frames2table
[31] =
206 { 0, 0, 0, 0, 0, /* 0-4 */
207 1, 1, 1, 2, 2, /* 5-9 */
208 3, 3, 4, 4, 4, /* 10-14 */
209 5, 5, 5, 5, 5, /* 15-19 */
210 6, 6, 6, 6, 7, /* 20-24 */
211 7, 7, 7, 7, 7, /* 25-29 */
215 if (size
< 0 || size
> PSZ_CIF
|| frames
< 4 || frames
> 25)
217 frames
= frames2frames
[frames
];
218 fps
= frames2table
[frames
];
219 pEntry
= &Nala_table
[size
][fps
];
220 if (pEntry
->alternate
== 0)
223 memcpy(buf
, pEntry
->mode
, 3);
224 ret
= send_video_command(pdev
->udev
, pdev
->vendpoint
, buf
, 3);
226 PWC_DEBUG_MODULE("Failed to send video command... %d\n", ret
);
229 if (pEntry
->compressed
&& pdev
->vpalette
!= VIDEO_PALETTE_RAW
)
230 pwc_dec1_init(pdev
->type
, pdev
->release
, buf
, pdev
->decompress_data
);
233 memcpy(pdev
->cmd_buf
, buf
, 3);
235 /* Set various parameters */
236 pdev
->vframes
= frames
;
238 pdev
->valternate
= pEntry
->alternate
;
239 pdev
->image
= pwc_image_sizes
[size
];
240 pdev
->frame_size
= (pdev
->image
.x
* pdev
->image
.y
* 3) / 2;
241 if (pEntry
->compressed
) {
242 if (pdev
->release
< 5) { /* 4 fold compression */
243 pdev
->vbandlength
= 528;
244 pdev
->frame_size
/= 4;
247 pdev
->vbandlength
= 704;
248 pdev
->frame_size
/= 3;
252 pdev
->vbandlength
= 0;
257 static int set_video_mode_Timon(struct pwc_device
*pdev
, int size
, int frames
, int compression
, int snapshot
)
259 unsigned char buf
[13];
260 const struct Timon_table_entry
*pChoose
;
263 if (size
>= PSZ_MAX
|| frames
< 5 || frames
> 30 || compression
< 0 || compression
> 3)
265 if (size
== PSZ_VGA
&& frames
> 15)
267 fps
= (frames
/ 5) - 1;
269 /* Find a supported framerate with progressively higher compression ratios
270 if the preferred ratio is not available.
273 while (compression
<= 3) {
274 pChoose
= &Timon_table
[size
][fps
][compression
];
275 if (pChoose
->alternate
!= 0)
279 if (pChoose
== NULL
|| pChoose
->alternate
== 0)
280 return -ENOENT
; /* Not supported. */
282 memcpy(buf
, pChoose
->mode
, 13);
285 ret
= send_video_command(pdev
->udev
, pdev
->vendpoint
, buf
, 13);
289 if (pChoose
->bandlength
> 0 && pdev
->vpalette
!= VIDEO_PALETTE_RAW
)
290 pwc_dec23_init(pdev
, pdev
->type
, buf
);
293 memcpy(pdev
->cmd_buf
, buf
, 13);
295 /* Set various parameters */
296 pdev
->vframes
= frames
;
298 pdev
->vsnapshot
= snapshot
;
299 pdev
->valternate
= pChoose
->alternate
;
300 pdev
->image
= pwc_image_sizes
[size
];
301 pdev
->vbandlength
= pChoose
->bandlength
;
302 if (pChoose
->bandlength
> 0)
303 pdev
->frame_size
= (pChoose
->bandlength
* pdev
->image
.y
) / 4;
305 pdev
->frame_size
= (pdev
->image
.x
* pdev
->image
.y
* 12) / 8;
310 static int set_video_mode_Kiara(struct pwc_device
*pdev
, int size
, int frames
, int compression
, int snapshot
)
312 const struct Kiara_table_entry
*pChoose
= NULL
;
314 unsigned char buf
[12];
315 struct Kiara_table_entry RawEntry
= {6, 773, 1272, {0xAD, 0xF4, 0x10, 0x27, 0xB6, 0x24, 0x96, 0x02, 0x30, 0x05, 0x03, 0x80}};
317 if (size
>= PSZ_MAX
|| frames
< 5 || frames
> 30 || compression
< 0 || compression
> 3)
319 if (size
== PSZ_VGA
&& frames
> 15)
321 fps
= (frames
/ 5) - 1;
323 /* special case: VGA @ 5 fps and snapshot is raw bayer mode */
324 if (size
== PSZ_VGA
&& frames
== 5 && snapshot
&& pdev
->vpalette
== VIDEO_PALETTE_RAW
)
326 /* Only available in case the raw palette is selected or
327 we have the decompressor available. This mode is
328 only available in compressed form
330 PWC_DEBUG_SIZE("Choosing VGA/5 BAYER mode.\n");
335 /* Find a supported framerate with progressively higher compression ratios
336 if the preferred ratio is not available.
337 Skip this step when using RAW modes.
340 while (compression
<= 3) {
341 pChoose
= &Kiara_table
[size
][fps
][compression
];
342 if (pChoose
->alternate
!= 0)
347 if (pChoose
== NULL
|| pChoose
->alternate
== 0)
348 return -ENOENT
; /* Not supported. */
350 PWC_TRACE("Using alternate setting %d.\n", pChoose
->alternate
);
352 /* usb_control_msg won't take staticly allocated arrays as argument?? */
353 memcpy(buf
, pChoose
->mode
, 12);
357 /* Firmware bug: video endpoint is 5, but commands are sent to endpoint 4 */
358 ret
= send_video_command(pdev
->udev
, 4 /* pdev->vendpoint */, buf
, 12);
362 if (pChoose
->bandlength
> 0 && pdev
->vpalette
!= VIDEO_PALETTE_RAW
)
363 pwc_dec23_init(pdev
, pdev
->type
, buf
);
366 memcpy(pdev
->cmd_buf
, buf
, 12);
368 pdev
->vframes
= frames
;
370 pdev
->vsnapshot
= snapshot
;
371 pdev
->valternate
= pChoose
->alternate
;
372 pdev
->image
= pwc_image_sizes
[size
];
373 pdev
->vbandlength
= pChoose
->bandlength
;
374 if (pdev
->vbandlength
> 0)
375 pdev
->frame_size
= (pdev
->vbandlength
* pdev
->image
.y
) / 4;
377 pdev
->frame_size
= (pdev
->image
.x
* pdev
->image
.y
* 12) / 8;
378 PWC_TRACE("frame_size=%d, vframes=%d, vsize=%d, vsnapshot=%d, vbandlength=%d\n",
379 pdev
->frame_size
,pdev
->vframes
,pdev
->vsize
,pdev
->vsnapshot
,pdev
->vbandlength
);
386 @pdev: device structure
387 @width: viewport width
388 @height: viewport height
389 @frame: framerate, in fps
390 @compression: preferred compression ratio
391 @snapshot: snapshot mode or streaming
393 int pwc_set_video_mode(struct pwc_device
*pdev
, int width
, int height
, int frames
, int compression
, int snapshot
)
397 PWC_DEBUG_FLOW("set_video_mode(%dx%d @ %d, palette %d).\n", width
, height
, frames
, pdev
->vpalette
);
398 size
= pwc_decode_size(pdev
, width
, height
);
400 PWC_DEBUG_MODULE("Could not find suitable size.\n");
403 PWC_TRACE("decode_size = %d.\n", size
);
405 if (DEVICE_USE_CODEC1(pdev
->type
)) {
406 ret
= set_video_mode_Nala(pdev
, size
, frames
);
408 } else if (DEVICE_USE_CODEC3(pdev
->type
)) {
409 ret
= set_video_mode_Kiara(pdev
, size
, frames
, compression
, snapshot
);
412 ret
= set_video_mode_Timon(pdev
, size
, frames
, compression
, snapshot
);
415 PWC_ERROR("Failed to set video mode %s@%d fps; return code = %d\n", size2name
[size
], frames
, ret
);
418 pdev
->view
.x
= width
;
419 pdev
->view
.y
= height
;
420 pdev
->frame_total_size
= pdev
->frame_size
+ pdev
->frame_header_size
+ pdev
->frame_trailer_size
;
421 pwc_set_image_buffer_size(pdev
);
422 PWC_DEBUG_SIZE("Set viewport to %dx%d, image size is %dx%d.\n", width
, height
, pwc_image_sizes
[size
].x
, pwc_image_sizes
[size
].y
);
430 static void pwc_set_image_buffer_size(struct pwc_device
*pdev
)
434 /* for PALETTE_YUV420P */
435 switch(pdev
->vpalette
)
437 case VIDEO_PALETTE_YUV420P
:
440 case VIDEO_PALETTE_RAW
:
441 factor
= 6; /* can be uncompressed YUV420P */
445 /* Set sizes in bytes */
446 pdev
->image
.size
= pdev
->image
.x
* pdev
->image
.y
* factor
/ 4;
447 pdev
->view
.size
= pdev
->view
.x
* pdev
->view
.y
* factor
/ 4;
449 /* Align offset, or you'll get some very weird results in
450 YUV420 mode... x must be multiple of 4 (to get the Y's in
451 place), and y even (or you'll mixup U & V). This is less of a
454 pdev
->offset
.x
= ((pdev
->view
.x
- pdev
->image
.x
) / 2) & 0xFFFC;
455 pdev
->offset
.y
= ((pdev
->view
.y
- pdev
->image
.y
) / 2) & 0xFFFE;
457 /* Fill buffers with black colors */
458 for (i
= 0; i
< pwc_mbufs
; i
++) {
459 unsigned char *p
= pdev
->image_data
+ pdev
->images
[i
].offset
;
460 memset(p
, BLACK_Y
, pdev
->view
.x
* pdev
->view
.y
);
461 p
+= pdev
->view
.x
* pdev
->view
.y
;
462 memset(p
, BLACK_U
, pdev
->view
.x
* pdev
->view
.y
/4);
463 p
+= pdev
->view
.x
* pdev
->view
.y
/4;
464 memset(p
, BLACK_V
, pdev
->view
.x
* pdev
->view
.y
/4);
472 int pwc_get_brightness(struct pwc_device
*pdev
)
477 ret
= RecvControlMsg(GET_LUM_CTL
, BRIGHTNESS_FORMATTER
, 1);
483 int pwc_set_brightness(struct pwc_device
*pdev
, int value
)
491 buf
= (value
>> 9) & 0x7f;
492 return SendControlMsg(SET_LUM_CTL
, BRIGHTNESS_FORMATTER
, 1);
497 int pwc_get_contrast(struct pwc_device
*pdev
)
502 ret
= RecvControlMsg(GET_LUM_CTL
, CONTRAST_FORMATTER
, 1);
508 int pwc_set_contrast(struct pwc_device
*pdev
, int value
)
516 buf
= (value
>> 10) & 0x3f;
517 return SendControlMsg(SET_LUM_CTL
, CONTRAST_FORMATTER
, 1);
522 int pwc_get_gamma(struct pwc_device
*pdev
)
527 ret
= RecvControlMsg(GET_LUM_CTL
, GAMMA_FORMATTER
, 1);
533 int pwc_set_gamma(struct pwc_device
*pdev
, int value
)
541 buf
= (value
>> 11) & 0x1f;
542 return SendControlMsg(SET_LUM_CTL
, GAMMA_FORMATTER
, 1);
548 /* return a value between [-100 , 100] */
549 int pwc_get_saturation(struct pwc_device
*pdev
, int *value
)
552 int ret
, saturation_register
;
554 if (pdev
->type
< 675)
556 if (pdev
->type
< 730)
557 saturation_register
= SATURATION_MODE_FORMATTER2
;
559 saturation_register
= SATURATION_MODE_FORMATTER1
;
560 ret
= RecvControlMsg(GET_CHROM_CTL
, saturation_register
, 1);
563 *value
= (signed)buf
;
567 /* @param value saturation color between [-100 , 100] */
568 int pwc_set_saturation(struct pwc_device
*pdev
, int value
)
571 int saturation_register
;
573 if (pdev
->type
< 675)
579 if (pdev
->type
< 730)
580 saturation_register
= SATURATION_MODE_FORMATTER2
;
582 saturation_register
= SATURATION_MODE_FORMATTER1
;
583 return SendControlMsg(SET_CHROM_CTL
, saturation_register
, 1);
588 int pwc_set_agc(struct pwc_device
*pdev
, int mode
, int value
)
594 buf
= 0x0; /* auto */
596 buf
= 0xff; /* fixed */
598 ret
= SendControlMsg(SET_LUM_CTL
, AGC_MODE_FORMATTER
, 1);
600 if (!mode
&& ret
>= 0) {
605 buf
= (value
>> 10) & 0x3F;
606 ret
= SendControlMsg(SET_LUM_CTL
, PRESET_AGC_FORMATTER
, 1);
613 int pwc_get_agc(struct pwc_device
*pdev
, int *value
)
618 ret
= RecvControlMsg(GET_LUM_CTL
, AGC_MODE_FORMATTER
, 1);
622 if (buf
!= 0) { /* fixed */
623 ret
= RecvControlMsg(GET_LUM_CTL
, PRESET_AGC_FORMATTER
, 1);
628 *value
= (buf
<< 10);
631 ret
= RecvControlMsg(GET_STATUS_CTL
, READ_AGC_FORMATTER
, 1);
634 /* Gah... this value ranges from 0x00 ... 0x9F */
637 *value
= -(48 + buf
* 409);
643 int pwc_set_shutter_speed(struct pwc_device
*pdev
, int mode
, int value
)
650 buf
[0] = 0x0; /* auto */
652 buf
[0] = 0xff; /* fixed */
654 ret
= SendControlMsg(SET_LUM_CTL
, SHUTTER_MODE_FORMATTER
, 1);
656 if (!mode
&& ret
>= 0) {
662 if (DEVICE_USE_CODEC2(pdev
->type
)) {
663 /* speed ranges from 0x0 to 0x290 (656) */
664 speed
= (value
/ 100);
666 buf
[0] = speed
& 0xff;
667 } else if (DEVICE_USE_CODEC3(pdev
->type
)) {
668 /* speed seems to range from 0x0 to 0xff */
673 ret
= SendControlMsg(SET_LUM_CTL
, PRESET_SHUTTER_FORMATTER
, 2);
678 /* This function is not exported to v4l1, so output values between 0 -> 256 */
679 int pwc_get_shutter_speed(struct pwc_device
*pdev
, int *value
)
681 unsigned char buf
[2];
684 ret
= RecvControlMsg(GET_STATUS_CTL
, READ_SHUTTER_FORMATTER
, 2);
687 *value
= buf
[0] + (buf
[1] << 8);
688 if (DEVICE_USE_CODEC2(pdev
->type
)) {
689 /* speed ranges from 0x0 to 0x290 (656) */
691 } else if (DEVICE_USE_CODEC3(pdev
->type
)) {
692 /* speed seems to range from 0x0 to 0xff */
700 int pwc_camera_power(struct pwc_device
*pdev
, int power
)
704 if (pdev
->type
< 675 || (pdev
->type
< 730 && pdev
->release
< 6))
705 return 0; /* Not supported by Nala or Timon < release 6 */
708 buf
= 0x00; /* active */
710 buf
= 0xFF; /* power save */
711 return SendControlMsg(SET_STATUS_CTL
, SET_POWER_SAVE_MODE_FORMATTER
, 1);
718 int pwc_restore_user(struct pwc_device
*pdev
)
720 char buf
; /* dummy */
721 return SendControlMsg(SET_STATUS_CTL
, RESTORE_USER_DEFAULTS_FORMATTER
, 0);
724 int pwc_save_user(struct pwc_device
*pdev
)
726 char buf
; /* dummy */
727 return SendControlMsg(SET_STATUS_CTL
, SAVE_USER_DEFAULTS_FORMATTER
, 0);
730 int pwc_restore_factory(struct pwc_device
*pdev
)
732 char buf
; /* dummy */
733 return SendControlMsg(SET_STATUS_CTL
, RESTORE_FACTORY_DEFAULTS_FORMATTER
, 0);
736 /* ************************************************* */
737 /* Patch by Alvarado: (not in the original version */
740 * the camera recognizes modes from 0 to 4:
742 * 00: indoor (incandescant lighting)
743 * 01: outdoor (sunlight)
744 * 02: fluorescent lighting
748 int pwc_set_awb(struct pwc_device
*pdev
, int mode
)
759 buf
= mode
& 0x07; /* just the lowest three bits */
761 ret
= SendControlMsg(SET_CHROM_CTL
, WB_MODE_FORMATTER
, 1);
768 int pwc_get_awb(struct pwc_device
*pdev
)
773 ret
= RecvControlMsg(GET_CHROM_CTL
, WB_MODE_FORMATTER
, 1);
780 int pwc_set_red_gain(struct pwc_device
*pdev
, int value
)
788 /* only the msb is considered */
790 return SendControlMsg(SET_CHROM_CTL
, PRESET_MANUAL_RED_GAIN_FORMATTER
, 1);
793 int pwc_get_red_gain(struct pwc_device
*pdev
, int *value
)
798 ret
= RecvControlMsg(GET_CHROM_CTL
, PRESET_MANUAL_RED_GAIN_FORMATTER
, 1);
806 int pwc_set_blue_gain(struct pwc_device
*pdev
, int value
)
814 /* only the msb is considered */
816 return SendControlMsg(SET_CHROM_CTL
, PRESET_MANUAL_BLUE_GAIN_FORMATTER
, 1);
819 int pwc_get_blue_gain(struct pwc_device
*pdev
, int *value
)
824 ret
= RecvControlMsg(GET_CHROM_CTL
, PRESET_MANUAL_BLUE_GAIN_FORMATTER
, 1);
832 /* The following two functions are different, since they only read the
833 internal red/blue gains, which may be different from the manual
834 gains set or read above.
836 static int pwc_read_red_gain(struct pwc_device
*pdev
, int *value
)
841 ret
= RecvControlMsg(GET_STATUS_CTL
, READ_RED_GAIN_FORMATTER
, 1);
848 static int pwc_read_blue_gain(struct pwc_device
*pdev
, int *value
)
853 ret
= RecvControlMsg(GET_STATUS_CTL
, READ_BLUE_GAIN_FORMATTER
, 1);
861 static int pwc_set_wb_speed(struct pwc_device
*pdev
, int speed
)
865 /* useful range is 0x01..0x20 */
867 return SendControlMsg(SET_CHROM_CTL
, AWB_CONTROL_SPEED_FORMATTER
, 1);
870 static int pwc_get_wb_speed(struct pwc_device
*pdev
, int *value
)
875 ret
= RecvControlMsg(GET_CHROM_CTL
, AWB_CONTROL_SPEED_FORMATTER
, 1);
878 *value
= buf
* 0x7f0;
883 static int pwc_set_wb_delay(struct pwc_device
*pdev
, int delay
)
887 /* useful range is 0x01..0x3F */
889 return SendControlMsg(SET_CHROM_CTL
, AWB_CONTROL_DELAY_FORMATTER
, 1);
892 static int pwc_get_wb_delay(struct pwc_device
*pdev
, int *value
)
897 ret
= RecvControlMsg(GET_CHROM_CTL
, AWB_CONTROL_DELAY_FORMATTER
, 1);
905 int pwc_set_leds(struct pwc_device
*pdev
, int on_value
, int off_value
)
907 unsigned char buf
[2];
909 if (pdev
->type
< 730)
919 if (off_value
> 0xff)
925 return SendControlMsg(SET_STATUS_CTL
, LED_FORMATTER
, 2);
928 static int pwc_get_leds(struct pwc_device
*pdev
, int *on_value
, int *off_value
)
930 unsigned char buf
[2];
933 if (pdev
->type
< 730) {
939 ret
= RecvControlMsg(GET_STATUS_CTL
, LED_FORMATTER
, 2);
942 *on_value
= buf
[0] * 100;
943 *off_value
= buf
[1] * 100;
947 int pwc_set_contour(struct pwc_device
*pdev
, int contour
)
953 buf
= 0xff; /* auto contour on */
955 buf
= 0x0; /* auto contour off */
956 ret
= SendControlMsg(SET_LUM_CTL
, AUTO_CONTOUR_FORMATTER
, 1);
962 if (contour
> 0xffff)
965 buf
= (contour
>> 10); /* contour preset is [0..3f] */
966 ret
= SendControlMsg(SET_LUM_CTL
, PRESET_CONTOUR_FORMATTER
, 1);
972 int pwc_get_contour(struct pwc_device
*pdev
, int *contour
)
977 ret
= RecvControlMsg(GET_LUM_CTL
, AUTO_CONTOUR_FORMATTER
, 1);
982 /* auto mode off, query current preset value */
983 ret
= RecvControlMsg(GET_LUM_CTL
, PRESET_CONTOUR_FORMATTER
, 1);
986 *contour
= buf
<< 10;
994 int pwc_set_backlight(struct pwc_device
*pdev
, int backlight
)
1002 return SendControlMsg(SET_LUM_CTL
, BACK_LIGHT_COMPENSATION_FORMATTER
, 1);
1005 int pwc_get_backlight(struct pwc_device
*pdev
, int *backlight
)
1010 ret
= RecvControlMsg(GET_LUM_CTL
, BACK_LIGHT_COMPENSATION_FORMATTER
, 1);
1017 int pwc_set_colour_mode(struct pwc_device
*pdev
, int colour
)
1025 return SendControlMsg(SET_CHROM_CTL
, COLOUR_MODE_FORMATTER
, 1);
1028 int pwc_get_colour_mode(struct pwc_device
*pdev
, int *colour
)
1033 ret
= RecvControlMsg(GET_CHROM_CTL
, COLOUR_MODE_FORMATTER
, 1);
1041 int pwc_set_flicker(struct pwc_device
*pdev
, int flicker
)
1049 return SendControlMsg(SET_LUM_CTL
, FLICKERLESS_MODE_FORMATTER
, 1);
1052 int pwc_get_flicker(struct pwc_device
*pdev
, int *flicker
)
1057 ret
= RecvControlMsg(GET_LUM_CTL
, FLICKERLESS_MODE_FORMATTER
, 1);
1064 int pwc_set_dynamic_noise(struct pwc_device
*pdev
, int noise
)
1073 return SendControlMsg(SET_LUM_CTL
, DYNAMIC_NOISE_CONTROL_FORMATTER
, 1);
1076 int pwc_get_dynamic_noise(struct pwc_device
*pdev
, int *noise
)
1081 ret
= RecvControlMsg(GET_LUM_CTL
, DYNAMIC_NOISE_CONTROL_FORMATTER
, 1);
1088 static int _pwc_mpt_reset(struct pwc_device
*pdev
, int flags
)
1092 buf
= flags
& 0x03; // only lower two bits are currently used
1093 return SendControlMsg(SET_MPT_CTL
, PT_RESET_CONTROL_FORMATTER
, 1);
1096 int pwc_mpt_reset(struct pwc_device
*pdev
, int flags
)
1099 ret
= _pwc_mpt_reset(pdev
, flags
);
1101 pdev
->pan_angle
= 0;
1102 pdev
->tilt_angle
= 0;
1107 static int _pwc_mpt_set_angle(struct pwc_device
*pdev
, int pan
, int tilt
)
1109 unsigned char buf
[4];
1111 /* set new relative angle; angles are expressed in degrees * 100,
1112 but cam as .5 degree resolution, hence divide by 200. Also
1113 the angle must be multiplied by 64 before it's send to
1116 pan
= 64 * pan
/ 100;
1117 tilt
= -64 * tilt
/ 100; /* positive tilt is down, which is not what the user would expect */
1118 buf
[0] = pan
& 0xFF;
1119 buf
[1] = (pan
>> 8) & 0xFF;
1120 buf
[2] = tilt
& 0xFF;
1121 buf
[3] = (tilt
>> 8) & 0xFF;
1122 return SendControlMsg(SET_MPT_CTL
, PT_RELATIVE_CONTROL_FORMATTER
, 4);
1125 int pwc_mpt_set_angle(struct pwc_device
*pdev
, int pan
, int tilt
)
1129 /* check absolute ranges */
1130 if (pan
< pdev
->angle_range
.pan_min
||
1131 pan
> pdev
->angle_range
.pan_max
||
1132 tilt
< pdev
->angle_range
.tilt_min
||
1133 tilt
> pdev
->angle_range
.tilt_max
)
1136 /* go to relative range, check again */
1137 pan
-= pdev
->pan_angle
;
1138 tilt
-= pdev
->tilt_angle
;
1139 /* angles are specified in degrees * 100, thus the limit = 36000 */
1140 if (pan
< -36000 || pan
> 36000 || tilt
< -36000 || tilt
> 36000)
1143 ret
= _pwc_mpt_set_angle(pdev
, pan
, tilt
);
1145 pdev
->pan_angle
+= pan
;
1146 pdev
->tilt_angle
+= tilt
;
1148 if (ret
== -EPIPE
) /* stall -> out of range */
1153 static int pwc_mpt_get_status(struct pwc_device
*pdev
, struct pwc_mpt_status
*status
)
1156 unsigned char buf
[5];
1158 ret
= RecvControlMsg(GET_MPT_CTL
, PT_STATUS_FORMATTER
, 5);
1161 status
->status
= buf
[0] & 0x7; // 3 bits are used for reporting
1162 status
->time_pan
= (buf
[1] << 8) + buf
[2];
1163 status
->time_tilt
= (buf
[3] << 8) + buf
[4];
1168 int pwc_get_cmos_sensor(struct pwc_device
*pdev
, int *sensor
)
1171 int ret
= -1, request
;
1173 if (pdev
->type
< 675)
1174 request
= SENSOR_TYPE_FORMATTER1
;
1175 else if (pdev
->type
< 730)
1176 return -1; /* The Vesta series doesn't have this call */
1178 request
= SENSOR_TYPE_FORMATTER2
;
1180 ret
= RecvControlMsg(GET_STATUS_CTL
, request
, 1);
1183 if (pdev
->type
< 675)
1184 *sensor
= buf
| 0x100;
1191 /* End of Add-Ons */
1192 /* ************************************************* */
1194 /* Linux 2.5.something and 2.6 pass direct pointers to arguments of
1195 ioctl() calls. With 2.4, you have to do tedious copy_from_user()
1196 and copy_to_user() calls. With these macros we circumvent this,
1197 and let me maintain only one source file. The functionality is
1198 exactly the same otherwise.
1202 /* define local variable for arg */
1203 #define ARG_DEF(ARG_type, ARG_name)\
1204 ARG_type *ARG_name = arg;
1205 /* copy arg to local variable */
1206 #define ARG_IN(ARG_name) /* nothing */
1207 /* argument itself (referenced) */
1208 #define ARGR(ARG_name) (*ARG_name)
1209 /* argument address */
1210 #define ARGA(ARG_name) ARG_name
1211 /* copy local variable to arg */
1212 #define ARG_OUT(ARG_name) /* nothing */
1215 int pwc_ioctl(struct pwc_device
*pdev
, unsigned int cmd
, void *arg
)
1220 case VIDIOCPWCRUSER
:
1222 if (pwc_restore_user(pdev
))
1227 case VIDIOCPWCSUSER
:
1229 if (pwc_save_user(pdev
))
1234 case VIDIOCPWCFACTORY
:
1236 if (pwc_restore_factory(pdev
))
1241 case VIDIOCPWCSCQUAL
:
1246 if (ARGR(qual
) < 0 || ARGR(qual
) > 3)
1249 ret
= pwc_try_video_mode(pdev
, pdev
->view
.x
, pdev
->view
.y
, pdev
->vframes
, ARGR(qual
), pdev
->vsnapshot
);
1251 pdev
->vcompression
= ARGR(qual
);
1255 case VIDIOCPWCGCQUAL
:
1259 ARGR(qual
) = pdev
->vcompression
;
1264 case VIDIOCPWCPROBE
:
1266 ARG_DEF(struct pwc_probe
, probe
)
1268 strcpy(ARGR(probe
).name
, pdev
->vdev
->name
);
1269 ARGR(probe
).type
= pdev
->type
;
1274 case VIDIOCPWCGSERIAL
:
1276 ARG_DEF(struct pwc_serial
, serial
)
1278 strcpy(ARGR(serial
).serial
, pdev
->serial
);
1288 if (pwc_set_agc(pdev
, ARGR(agc
) < 0 ? 1 : 0, ARGR(agc
)))
1297 if (pwc_get_agc(pdev
, ARGA(agc
)))
1303 case VIDIOCPWCSSHUTTER
:
1305 ARG_DEF(int, shutter_speed
)
1307 ARG_IN(shutter_speed
)
1308 ret
= pwc_set_shutter_speed(pdev
, ARGR(shutter_speed
) < 0 ? 1 : 0, ARGR(shutter_speed
));
1314 ARG_DEF(struct pwc_whitebalance
, wb
)
1317 ret
= pwc_set_awb(pdev
, ARGR(wb
).mode
);
1318 if (ret
>= 0 && ARGR(wb
).mode
== PWC_WB_MANUAL
) {
1319 pwc_set_red_gain(pdev
, ARGR(wb
).manual_red
);
1320 pwc_set_blue_gain(pdev
, ARGR(wb
).manual_blue
);
1327 ARG_DEF(struct pwc_whitebalance
, wb
)
1329 memset(ARGA(wb
), 0, sizeof(struct pwc_whitebalance
));
1330 ARGR(wb
).mode
= pwc_get_awb(pdev
);
1331 if (ARGR(wb
).mode
< 0)
1334 if (ARGR(wb
).mode
== PWC_WB_MANUAL
) {
1335 ret
= pwc_get_red_gain(pdev
, &ARGR(wb
).manual_red
);
1338 ret
= pwc_get_blue_gain(pdev
, &ARGR(wb
).manual_blue
);
1342 if (ARGR(wb
).mode
== PWC_WB_AUTO
) {
1343 ret
= pwc_read_red_gain(pdev
, &ARGR(wb
).read_red
);
1346 ret
=pwc_read_blue_gain(pdev
, &ARGR(wb
).read_blue
);
1355 case VIDIOCPWCSAWBSPEED
:
1357 ARG_DEF(struct pwc_wb_speed
, wbs
)
1359 if (ARGR(wbs
).control_speed
> 0) {
1360 ret
= pwc_set_wb_speed(pdev
, ARGR(wbs
).control_speed
);
1362 if (ARGR(wbs
).control_delay
> 0) {
1363 ret
= pwc_set_wb_delay(pdev
, ARGR(wbs
).control_delay
);
1368 case VIDIOCPWCGAWBSPEED
:
1370 ARG_DEF(struct pwc_wb_speed
, wbs
)
1372 ret
= pwc_get_wb_speed(pdev
, &ARGR(wbs
).control_speed
);
1375 ret
= pwc_get_wb_delay(pdev
, &ARGR(wbs
).control_delay
);
1384 ARG_DEF(struct pwc_leds
, leds
)
1387 ret
= pwc_set_leds(pdev
, ARGR(leds
).led_on
, ARGR(leds
).led_off
);
1394 ARG_DEF(struct pwc_leds
, leds
)
1396 ret
= pwc_get_leds(pdev
, &ARGR(leds
).led_on
, &ARGR(leds
).led_off
);
1401 case VIDIOCPWCSCONTOUR
:
1403 ARG_DEF(int, contour
)
1406 ret
= pwc_set_contour(pdev
, ARGR(contour
));
1410 case VIDIOCPWCGCONTOUR
:
1412 ARG_DEF(int, contour
)
1414 ret
= pwc_get_contour(pdev
, ARGA(contour
));
1419 case VIDIOCPWCSBACKLIGHT
:
1421 ARG_DEF(int, backlight
)
1424 ret
= pwc_set_backlight(pdev
, ARGR(backlight
));
1428 case VIDIOCPWCGBACKLIGHT
:
1430 ARG_DEF(int, backlight
)
1432 ret
= pwc_get_backlight(pdev
, ARGA(backlight
));
1437 case VIDIOCPWCSFLICKER
:
1439 ARG_DEF(int, flicker
)
1442 ret
= pwc_set_flicker(pdev
, ARGR(flicker
));
1446 case VIDIOCPWCGFLICKER
:
1448 ARG_DEF(int, flicker
)
1450 ret
= pwc_get_flicker(pdev
, ARGA(flicker
));
1455 case VIDIOCPWCSDYNNOISE
:
1457 ARG_DEF(int, dynnoise
)
1460 ret
= pwc_set_dynamic_noise(pdev
, ARGR(dynnoise
));
1464 case VIDIOCPWCGDYNNOISE
:
1466 ARG_DEF(int, dynnoise
)
1468 ret
= pwc_get_dynamic_noise(pdev
, ARGA(dynnoise
));
1473 case VIDIOCPWCGREALSIZE
:
1475 ARG_DEF(struct pwc_imagesize
, size
)
1477 ARGR(size
).width
= pdev
->image
.x
;
1478 ARGR(size
).height
= pdev
->image
.y
;
1483 case VIDIOCPWCMPTRESET
:
1485 if (pdev
->features
& FEATURE_MOTOR_PANTILT
)
1490 ret
= pwc_mpt_reset(pdev
, ARGR(flags
));
1499 case VIDIOCPWCMPTGRANGE
:
1501 if (pdev
->features
& FEATURE_MOTOR_PANTILT
)
1503 ARG_DEF(struct pwc_mpt_range
, range
)
1505 ARGR(range
) = pdev
->angle_range
;
1515 case VIDIOCPWCMPTSANGLE
:
1517 int new_pan
, new_tilt
;
1519 if (pdev
->features
& FEATURE_MOTOR_PANTILT
)
1521 ARG_DEF(struct pwc_mpt_angles
, angles
)
1524 /* The camera can only set relative angles, so
1525 do some calculations when getting an absolute angle .
1527 if (ARGR(angles
).absolute
)
1529 new_pan
= ARGR(angles
).pan
;
1530 new_tilt
= ARGR(angles
).tilt
;
1534 new_pan
= pdev
->pan_angle
+ ARGR(angles
).pan
;
1535 new_tilt
= pdev
->tilt_angle
+ ARGR(angles
).tilt
;
1537 ret
= pwc_mpt_set_angle(pdev
, new_pan
, new_tilt
);
1546 case VIDIOCPWCMPTGANGLE
:
1549 if (pdev
->features
& FEATURE_MOTOR_PANTILT
)
1551 ARG_DEF(struct pwc_mpt_angles
, angles
)
1553 ARGR(angles
).absolute
= 1;
1554 ARGR(angles
).pan
= pdev
->pan_angle
;
1555 ARGR(angles
).tilt
= pdev
->tilt_angle
;
1565 case VIDIOCPWCMPTSTATUS
:
1567 if (pdev
->features
& FEATURE_MOTOR_PANTILT
)
1569 ARG_DEF(struct pwc_mpt_status
, status
)
1571 ret
= pwc_mpt_get_status(pdev
, ARGA(status
));
1581 case VIDIOCPWCGVIDCMD
:
1583 ARG_DEF(struct pwc_video_command
, cmd
);
1585 ARGR(cmd
).type
= pdev
->type
;
1586 ARGR(cmd
).release
= pdev
->release
;
1587 ARGR(cmd
).command_len
= pdev
->cmd_len
;
1588 memcpy(&ARGR(cmd
).command_buf
, pdev
->cmd_buf
, pdev
->cmd_len
);
1589 ARGR(cmd
).bandlength
= pdev
->vbandlength
;
1590 ARGR(cmd
).frame_size
= pdev
->frame_size
;
1595 case VIDIOCPWCGVIDTABLE:
1597 ARG_DEF(struct pwc_table_init_buffer, table);
1598 ARGR(table).len = pdev->cmd_len;
1599 memcpy(&ARGR(table).buffer, pdev->decompress_data, pdev->decompressor->table_size);
1616 /* vim: set cinoptions= formatoptions=croql cindent shiftwidth=8 tabstop=8: */