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: */