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 #define PWC_FPS_MAX_NALA 8
145 struct Nala_table_entry {
146 char alternate; /* USB alternate setting */
147 int compressed; /* Compressed yes/no */
149 unsigned char mode[3]; /* precomputed mode table */
152 static unsigned int Nala_fps_vector[PWC_FPS_MAX_NALA] = { 4, 5, 7, 10, 12, 15, 20, 24 };
154 static struct Nala_table_entry Nala_table[PSZ_MAX][PWC_FPS_MAX_NALA] =
156 #include "pwc-nala.h"
159 static void pwc_set_image_buffer_size(struct pwc_device *pdev);
161 /****************************************************************************/
164 #define SendControlMsg(request, value, buflen) \
165 usb_control_msg(pdev->udev, usb_sndctrlpipe(pdev->udev, 0), \
167 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, \
172 #define RecvControlMsg(request, value, buflen) \
173 usb_control_msg(pdev->udev, usb_rcvctrlpipe(pdev->udev, 0), \
175 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, \
181 static int send_video_command(struct usb_device *udev, int index, void *buf, int buflen)
183 return usb_control_msg(udev,
184 usb_sndctrlpipe(udev, 0),
186 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
187 VIDEO_OUTPUT_CONTROL_FORMATTER,
194 static int set_video_mode_Nala(struct pwc_device *pdev, int size, int frames)
196 unsigned char buf[3];
198 struct Nala_table_entry *pEntry;
199 int frames2frames[31] =
200 { /* closest match of framerate */
201 0, 0, 0, 0, 4, /* 0-4 */
202 5, 5, 7, 7, 10, /* 5-9 */
203 10, 10, 12, 12, 15, /* 10-14 */
204 15, 15, 15, 20, 20, /* 15-19 */
205 20, 20, 20, 24, 24, /* 20-24 */
206 24, 24, 24, 24, 24, /* 25-29 */
209 int frames2table[31] =
210 { 0, 0, 0, 0, 0, /* 0-4 */
211 1, 1, 1, 2, 2, /* 5-9 */
212 3, 3, 4, 4, 4, /* 10-14 */
213 5, 5, 5, 5, 5, /* 15-19 */
214 6, 6, 6, 6, 7, /* 20-24 */
215 7, 7, 7, 7, 7, /* 25-29 */
219 if (size < 0 || size > PSZ_CIF || frames < 4 || frames > 25)
221 frames = frames2frames[frames];
222 fps = frames2table[frames];
223 pEntry = &Nala_table[size][fps];
224 if (pEntry->alternate == 0)
227 memcpy(buf, pEntry->mode, 3);
228 ret = send_video_command(pdev->udev, pdev->vendpoint, buf, 3);
230 PWC_DEBUG_MODULE("Failed to send video command... %d\n", ret);
233 if (pEntry->compressed && pdev->vpalette != VIDEO_PALETTE_RAW)
234 pwc_dec1_init(pdev->type, pdev->release, buf, pdev->decompress_data);
237 memcpy(pdev->cmd_buf, buf, 3);
239 /* Set various parameters */
240 pdev->vframes = frames;
242 pdev->valternate = pEntry->alternate;
243 pdev->image = pwc_image_sizes[size];
244 pdev->frame_size = (pdev->image.x * pdev->image.y * 3) / 2;
245 if (pEntry->compressed) {
246 if (pdev->release < 5) { /* 4 fold compression */
247 pdev->vbandlength = 528;
248 pdev->frame_size /= 4;
251 pdev->vbandlength = 704;
252 pdev->frame_size /= 3;
256 pdev->vbandlength = 0;
261 static int set_video_mode_Timon(struct pwc_device *pdev, int size, int frames, int compression, int snapshot)
263 unsigned char buf[13];
264 const struct Timon_table_entry *pChoose;
267 if (size >= PSZ_MAX || frames < 5 || frames > 30 || compression < 0 || compression > 3)
269 if (size == PSZ_VGA && frames > 15)
271 fps = (frames / 5) - 1;
273 /* Find a supported framerate with progressively higher compression ratios
274 if the preferred ratio is not available.
277 while (compression <= 3) {
278 pChoose = &Timon_table[size][fps][compression];
279 if (pChoose->alternate != 0)
283 if (pChoose == NULL || pChoose->alternate == 0)
284 return -ENOENT; /* Not supported. */
286 memcpy(buf, pChoose->mode, 13);
289 ret = send_video_command(pdev->udev, pdev->vendpoint, buf, 13);
293 if (pChoose->bandlength > 0 && pdev->vpalette != VIDEO_PALETTE_RAW)
294 pwc_dec23_init(pdev, pdev->type, buf);
297 memcpy(pdev->cmd_buf, buf, 13);
299 /* Set various parameters */
300 pdev->vframes = frames;
302 pdev->vsnapshot = snapshot;
303 pdev->valternate = pChoose->alternate;
304 pdev->image = pwc_image_sizes[size];
305 pdev->vbandlength = pChoose->bandlength;
306 if (pChoose->bandlength > 0)
307 pdev->frame_size = (pChoose->bandlength * pdev->image.y) / 4;
309 pdev->frame_size = (pdev->image.x * pdev->image.y * 12) / 8;
314 static int set_video_mode_Kiara(struct pwc_device *pdev, int size, int frames, int compression, int snapshot)
316 const struct Kiara_table_entry *pChoose = NULL;
318 unsigned char buf[12];
319 struct Kiara_table_entry RawEntry = {6, 773, 1272, {0xAD, 0xF4, 0x10, 0x27, 0xB6, 0x24, 0x96, 0x02, 0x30, 0x05, 0x03, 0x80}};
321 if (size >= PSZ_MAX || frames < 5 || frames > 30 || compression < 0 || compression > 3)
323 if (size == PSZ_VGA && frames > 15)
325 fps = (frames / 5) - 1;
327 /* special case: VGA @ 5 fps and snapshot is raw bayer mode */
328 if (size == PSZ_VGA && frames == 5 && snapshot && pdev->vpalette == VIDEO_PALETTE_RAW)
330 /* Only available in case the raw palette is selected or
331 we have the decompressor available. This mode is
332 only available in compressed form
334 PWC_DEBUG_SIZE("Choosing VGA/5 BAYER mode.\n");
339 /* Find a supported framerate with progressively higher compression ratios
340 if the preferred ratio is not available.
341 Skip this step when using RAW modes.
344 while (compression <= 3) {
345 pChoose = &Kiara_table[size][fps][compression];
346 if (pChoose->alternate != 0)
351 if (pChoose == NULL || pChoose->alternate == 0)
352 return -ENOENT; /* Not supported. */
354 PWC_TRACE("Using alternate setting %d.\n", pChoose->alternate);
356 /* usb_control_msg won't take staticly allocated arrays as argument?? */
357 memcpy(buf, pChoose->mode, 12);
361 /* Firmware bug: video endpoint is 5, but commands are sent to endpoint 4 */
362 ret = send_video_command(pdev->udev, 4 /* pdev->vendpoint */, buf, 12);
366 if (pChoose->bandlength > 0 && pdev->vpalette != VIDEO_PALETTE_RAW)
367 pwc_dec23_init(pdev, pdev->type, buf);
370 memcpy(pdev->cmd_buf, buf, 12);
372 pdev->vframes = frames;
374 pdev->vsnapshot = snapshot;
375 pdev->valternate = pChoose->alternate;
376 pdev->image = pwc_image_sizes[size];
377 pdev->vbandlength = pChoose->bandlength;
378 if (pdev->vbandlength > 0)
379 pdev->frame_size = (pdev->vbandlength * pdev->image.y) / 4;
381 pdev->frame_size = (pdev->image.x * pdev->image.y * 12) / 8;
382 PWC_TRACE("frame_size=%d, vframes=%d, vsize=%d, vsnapshot=%d, vbandlength=%d\n",
383 pdev->frame_size,pdev->vframes,pdev->vsize,pdev->vsnapshot,pdev->vbandlength);
390 @pdev: device structure
391 @width: viewport width
392 @height: viewport height
393 @frame: framerate, in fps
394 @compression: preferred compression ratio
395 @snapshot: snapshot mode or streaming
397 int pwc_set_video_mode(struct pwc_device *pdev, int width, int height, int frames, int compression, int snapshot)
401 PWC_DEBUG_FLOW("set_video_mode(%dx%d @ %d, palette %d).\n", width, height, frames, pdev->vpalette);
402 size = pwc_decode_size(pdev, width, height);
404 PWC_DEBUG_MODULE("Could not find suitable size.\n");
407 PWC_TRACE("decode_size = %d.\n", size);
409 if (DEVICE_USE_CODEC1(pdev->type)) {
410 ret = set_video_mode_Nala(pdev, size, frames);
412 } else if (DEVICE_USE_CODEC3(pdev->type)) {
413 ret = set_video_mode_Kiara(pdev, size, frames, compression, snapshot);
416 ret = set_video_mode_Timon(pdev, size, frames, compression, snapshot);
419 PWC_ERROR("Failed to set video mode %s@%d fps; return code = %d\n", size2name[size], frames, ret);
422 pdev->view.x = width;
423 pdev->view.y = height;
424 pdev->frame_total_size = pdev->frame_size + pdev->frame_header_size + pdev->frame_trailer_size;
425 pwc_set_image_buffer_size(pdev);
426 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 unsigned int pwc_get_fps_Nala(struct pwc_device *pdev, unsigned int index, unsigned int size)
434 for (i = 0; i < PWC_FPS_MAX_NALA; i++) {
435 if (Nala_table[size][i].alternate) {
436 if (index--==0) return Nala_fps_vector[i];
442 static unsigned int pwc_get_fps_Kiara(struct pwc_device *pdev, unsigned int index, unsigned int size)
446 for (i = 0; i < PWC_FPS_MAX_KIARA; i++) {
447 if (Kiara_table[size][i][3].alternate) {
448 if (index--==0) return Kiara_fps_vector[i];
454 static unsigned int pwc_get_fps_Timon(struct pwc_device *pdev, unsigned int index, unsigned int size)
458 for (i=0; i < PWC_FPS_MAX_TIMON; i++) {
459 if (Timon_table[size][i][3].alternate) {
460 if (index--==0) return Timon_fps_vector[i];
466 unsigned int pwc_get_fps(struct pwc_device *pdev, unsigned int index, unsigned int size)
470 if (DEVICE_USE_CODEC1(pdev->type)) {
471 ret = pwc_get_fps_Nala(pdev, index, size);
473 } else if (DEVICE_USE_CODEC3(pdev->type)) {
474 ret = pwc_get_fps_Kiara(pdev, index, size);
477 ret = pwc_get_fps_Timon(pdev, index, size);
487 static void pwc_set_image_buffer_size(struct pwc_device *pdev)
491 /* for PALETTE_YUV420P */
492 switch(pdev->vpalette)
494 case VIDEO_PALETTE_YUV420P:
497 case VIDEO_PALETTE_RAW:
498 factor = 6; /* can be uncompressed YUV420P */
502 /* Set sizes in bytes */
503 pdev->image.size = pdev->image.x * pdev->image.y * factor / 4;
504 pdev->view.size = pdev->view.x * pdev->view.y * factor / 4;
506 /* Align offset, or you'll get some very weird results in
507 YUV420 mode... x must be multiple of 4 (to get the Y's in
508 place), and y even (or you'll mixup U & V). This is less of a
511 pdev->offset.x = ((pdev->view.x - pdev->image.x) / 2) & 0xFFFC;
512 pdev->offset.y = ((pdev->view.y - pdev->image.y) / 2) & 0xFFFE;
514 /* Fill buffers with black colors */
515 for (i = 0; i < pwc_mbufs; i++) {
516 unsigned char *p = pdev->image_data + pdev->images[i].offset;
517 memset(p, BLACK_Y, pdev->view.x * pdev->view.y);
518 p += pdev->view.x * pdev->view.y;
519 memset(p, BLACK_U, pdev->view.x * pdev->view.y/4);
520 p += pdev->view.x * pdev->view.y/4;
521 memset(p, BLACK_V, pdev->view.x * pdev->view.y/4);
529 int pwc_get_brightness(struct pwc_device *pdev)
534 ret = RecvControlMsg(GET_LUM_CTL, BRIGHTNESS_FORMATTER, 1);
540 int pwc_set_brightness(struct pwc_device *pdev, int value)
548 buf = (value >> 9) & 0x7f;
549 return SendControlMsg(SET_LUM_CTL, BRIGHTNESS_FORMATTER, 1);
554 int pwc_get_contrast(struct pwc_device *pdev)
559 ret = RecvControlMsg(GET_LUM_CTL, CONTRAST_FORMATTER, 1);
565 int pwc_set_contrast(struct pwc_device *pdev, int value)
573 buf = (value >> 10) & 0x3f;
574 return SendControlMsg(SET_LUM_CTL, CONTRAST_FORMATTER, 1);
579 int pwc_get_gamma(struct pwc_device *pdev)
584 ret = RecvControlMsg(GET_LUM_CTL, GAMMA_FORMATTER, 1);
590 int pwc_set_gamma(struct pwc_device *pdev, int value)
598 buf = (value >> 11) & 0x1f;
599 return SendControlMsg(SET_LUM_CTL, GAMMA_FORMATTER, 1);
605 /* return a value between [-100 , 100] */
606 int pwc_get_saturation(struct pwc_device *pdev, int *value)
609 int ret, saturation_register;
611 if (pdev->type < 675)
613 if (pdev->type < 730)
614 saturation_register = SATURATION_MODE_FORMATTER2;
616 saturation_register = SATURATION_MODE_FORMATTER1;
617 ret = RecvControlMsg(GET_CHROM_CTL, saturation_register, 1);
620 *value = (signed)buf;
624 /* @param value saturation color between [-100 , 100] */
625 int pwc_set_saturation(struct pwc_device *pdev, int value)
628 int saturation_register;
630 if (pdev->type < 675)
636 if (pdev->type < 730)
637 saturation_register = SATURATION_MODE_FORMATTER2;
639 saturation_register = SATURATION_MODE_FORMATTER1;
640 return SendControlMsg(SET_CHROM_CTL, saturation_register, 1);
645 int pwc_set_agc(struct pwc_device *pdev, int mode, int value)
651 buf = 0x0; /* auto */
653 buf = 0xff; /* fixed */
655 ret = SendControlMsg(SET_LUM_CTL, AGC_MODE_FORMATTER, 1);
657 if (!mode && ret >= 0) {
662 buf = (value >> 10) & 0x3F;
663 ret = SendControlMsg(SET_LUM_CTL, PRESET_AGC_FORMATTER, 1);
670 int pwc_get_agc(struct pwc_device *pdev, int *value)
675 ret = RecvControlMsg(GET_LUM_CTL, AGC_MODE_FORMATTER, 1);
679 if (buf != 0) { /* fixed */
680 ret = RecvControlMsg(GET_LUM_CTL, PRESET_AGC_FORMATTER, 1);
685 *value = (buf << 10);
688 ret = RecvControlMsg(GET_STATUS_CTL, READ_AGC_FORMATTER, 1);
691 /* Gah... this value ranges from 0x00 ... 0x9F */
694 *value = -(48 + buf * 409);
700 int pwc_set_shutter_speed(struct pwc_device *pdev, int mode, int value)
707 buf[0] = 0x0; /* auto */
709 buf[0] = 0xff; /* fixed */
711 ret = SendControlMsg(SET_LUM_CTL, SHUTTER_MODE_FORMATTER, 1);
713 if (!mode && ret >= 0) {
719 if (DEVICE_USE_CODEC2(pdev->type)) {
720 /* speed ranges from 0x0 to 0x290 (656) */
721 speed = (value / 100);
723 buf[0] = speed & 0xff;
724 } else if (DEVICE_USE_CODEC3(pdev->type)) {
725 /* speed seems to range from 0x0 to 0xff */
730 ret = SendControlMsg(SET_LUM_CTL, PRESET_SHUTTER_FORMATTER, 2);
735 /* This function is not exported to v4l1, so output values between 0 -> 256 */
736 int pwc_get_shutter_speed(struct pwc_device *pdev, int *value)
738 unsigned char buf[2];
741 ret = RecvControlMsg(GET_STATUS_CTL, READ_SHUTTER_FORMATTER, 2);
744 *value = buf[0] + (buf[1] << 8);
745 if (DEVICE_USE_CODEC2(pdev->type)) {
746 /* speed ranges from 0x0 to 0x290 (656) */
748 } else if (DEVICE_USE_CODEC3(pdev->type)) {
749 /* speed seems to range from 0x0 to 0xff */
757 int pwc_camera_power(struct pwc_device *pdev, int power)
761 if (pdev->type < 675 || (pdev->type < 730 && pdev->release < 6))
762 return 0; /* Not supported by Nala or Timon < release 6 */
765 buf = 0x00; /* active */
767 buf = 0xFF; /* power save */
768 return SendControlMsg(SET_STATUS_CTL, SET_POWER_SAVE_MODE_FORMATTER, 1);
775 int pwc_restore_user(struct pwc_device *pdev)
777 char buf; /* dummy */
778 return SendControlMsg(SET_STATUS_CTL, RESTORE_USER_DEFAULTS_FORMATTER, 0);
781 int pwc_save_user(struct pwc_device *pdev)
783 char buf; /* dummy */
784 return SendControlMsg(SET_STATUS_CTL, SAVE_USER_DEFAULTS_FORMATTER, 0);
787 int pwc_restore_factory(struct pwc_device *pdev)
789 char buf; /* dummy */
790 return SendControlMsg(SET_STATUS_CTL, RESTORE_FACTORY_DEFAULTS_FORMATTER, 0);
793 /* ************************************************* */
794 /* Patch by Alvarado: (not in the original version */
797 * the camera recognizes modes from 0 to 4:
799 * 00: indoor (incandescant lighting)
800 * 01: outdoor (sunlight)
801 * 02: fluorescent lighting
805 int pwc_set_awb(struct pwc_device *pdev, int mode)
816 buf = mode & 0x07; /* just the lowest three bits */
818 ret = SendControlMsg(SET_CHROM_CTL, WB_MODE_FORMATTER, 1);
825 int pwc_get_awb(struct pwc_device *pdev)
830 ret = RecvControlMsg(GET_CHROM_CTL, WB_MODE_FORMATTER, 1);
837 int pwc_set_red_gain(struct pwc_device *pdev, int value)
845 /* only the msb is considered */
847 return SendControlMsg(SET_CHROM_CTL, PRESET_MANUAL_RED_GAIN_FORMATTER, 1);
850 int pwc_get_red_gain(struct pwc_device *pdev, int *value)
855 ret = RecvControlMsg(GET_CHROM_CTL, PRESET_MANUAL_RED_GAIN_FORMATTER, 1);
863 int pwc_set_blue_gain(struct pwc_device *pdev, int value)
871 /* only the msb is considered */
873 return SendControlMsg(SET_CHROM_CTL, PRESET_MANUAL_BLUE_GAIN_FORMATTER, 1);
876 int pwc_get_blue_gain(struct pwc_device *pdev, int *value)
881 ret = RecvControlMsg(GET_CHROM_CTL, PRESET_MANUAL_BLUE_GAIN_FORMATTER, 1);
889 /* The following two functions are different, since they only read the
890 internal red/blue gains, which may be different from the manual
891 gains set or read above.
893 static int pwc_read_red_gain(struct pwc_device *pdev, int *value)
898 ret = RecvControlMsg(GET_STATUS_CTL, READ_RED_GAIN_FORMATTER, 1);
905 static int pwc_read_blue_gain(struct pwc_device *pdev, int *value)
910 ret = RecvControlMsg(GET_STATUS_CTL, READ_BLUE_GAIN_FORMATTER, 1);
918 static int pwc_set_wb_speed(struct pwc_device *pdev, int speed)
922 /* useful range is 0x01..0x20 */
924 return SendControlMsg(SET_CHROM_CTL, AWB_CONTROL_SPEED_FORMATTER, 1);
927 static int pwc_get_wb_speed(struct pwc_device *pdev, int *value)
932 ret = RecvControlMsg(GET_CHROM_CTL, AWB_CONTROL_SPEED_FORMATTER, 1);
935 *value = buf * 0x7f0;
940 static int pwc_set_wb_delay(struct pwc_device *pdev, int delay)
944 /* useful range is 0x01..0x3F */
946 return SendControlMsg(SET_CHROM_CTL, AWB_CONTROL_DELAY_FORMATTER, 1);
949 static int pwc_get_wb_delay(struct pwc_device *pdev, int *value)
954 ret = RecvControlMsg(GET_CHROM_CTL, AWB_CONTROL_DELAY_FORMATTER, 1);
962 int pwc_set_leds(struct pwc_device *pdev, int on_value, int off_value)
964 unsigned char buf[2];
966 if (pdev->type < 730)
976 if (off_value > 0xff)
982 return SendControlMsg(SET_STATUS_CTL, LED_FORMATTER, 2);
985 static int pwc_get_leds(struct pwc_device *pdev, int *on_value, int *off_value)
987 unsigned char buf[2];
990 if (pdev->type < 730) {
996 ret = RecvControlMsg(GET_STATUS_CTL, LED_FORMATTER, 2);
999 *on_value = buf[0] * 100;
1000 *off_value = buf[1] * 100;
1004 int pwc_set_contour(struct pwc_device *pdev, int contour)
1010 buf = 0xff; /* auto contour on */
1012 buf = 0x0; /* auto contour off */
1013 ret = SendControlMsg(SET_LUM_CTL, AUTO_CONTOUR_FORMATTER, 1);
1019 if (contour > 0xffff)
1022 buf = (contour >> 10); /* contour preset is [0..3f] */
1023 ret = SendControlMsg(SET_LUM_CTL, PRESET_CONTOUR_FORMATTER, 1);
1029 int pwc_get_contour(struct pwc_device *pdev, int *contour)
1034 ret = RecvControlMsg(GET_LUM_CTL, AUTO_CONTOUR_FORMATTER, 1);
1039 /* auto mode off, query current preset value */
1040 ret = RecvControlMsg(GET_LUM_CTL, PRESET_CONTOUR_FORMATTER, 1);
1043 *contour = buf << 10;
1051 int pwc_set_backlight(struct pwc_device *pdev, int backlight)
1059 return SendControlMsg(SET_LUM_CTL, BACK_LIGHT_COMPENSATION_FORMATTER, 1);
1062 int pwc_get_backlight(struct pwc_device *pdev, int *backlight)
1067 ret = RecvControlMsg(GET_LUM_CTL, BACK_LIGHT_COMPENSATION_FORMATTER, 1);
1074 int pwc_set_colour_mode(struct pwc_device *pdev, int colour)
1082 return SendControlMsg(SET_CHROM_CTL, COLOUR_MODE_FORMATTER, 1);
1085 int pwc_get_colour_mode(struct pwc_device *pdev, int *colour)
1090 ret = RecvControlMsg(GET_CHROM_CTL, COLOUR_MODE_FORMATTER, 1);
1098 int pwc_set_flicker(struct pwc_device *pdev, int flicker)
1106 return SendControlMsg(SET_LUM_CTL, FLICKERLESS_MODE_FORMATTER, 1);
1109 int pwc_get_flicker(struct pwc_device *pdev, int *flicker)
1114 ret = RecvControlMsg(GET_LUM_CTL, FLICKERLESS_MODE_FORMATTER, 1);
1121 int pwc_set_dynamic_noise(struct pwc_device *pdev, int noise)
1130 return SendControlMsg(SET_LUM_CTL, DYNAMIC_NOISE_CONTROL_FORMATTER, 1);
1133 int pwc_get_dynamic_noise(struct pwc_device *pdev, int *noise)
1138 ret = RecvControlMsg(GET_LUM_CTL, DYNAMIC_NOISE_CONTROL_FORMATTER, 1);
1145 static int _pwc_mpt_reset(struct pwc_device *pdev, int flags)
1149 buf = flags & 0x03; // only lower two bits are currently used
1150 return SendControlMsg(SET_MPT_CTL, PT_RESET_CONTROL_FORMATTER, 1);
1153 int pwc_mpt_reset(struct pwc_device *pdev, int flags)
1156 ret = _pwc_mpt_reset(pdev, flags);
1158 pdev->pan_angle = 0;
1159 pdev->tilt_angle = 0;
1164 static int _pwc_mpt_set_angle(struct pwc_device *pdev, int pan, int tilt)
1166 unsigned char buf[4];
1168 /* set new relative angle; angles are expressed in degrees * 100,
1169 but cam as .5 degree resolution, hence divide by 200. Also
1170 the angle must be multiplied by 64 before it's send to
1173 pan = 64 * pan / 100;
1174 tilt = -64 * tilt / 100; /* positive tilt is down, which is not what the user would expect */
1175 buf[0] = pan & 0xFF;
1176 buf[1] = (pan >> 8) & 0xFF;
1177 buf[2] = tilt & 0xFF;
1178 buf[3] = (tilt >> 8) & 0xFF;
1179 return SendControlMsg(SET_MPT_CTL, PT_RELATIVE_CONTROL_FORMATTER, 4);
1182 int pwc_mpt_set_angle(struct pwc_device *pdev, int pan, int tilt)
1186 /* check absolute ranges */
1187 if (pan < pdev->angle_range.pan_min ||
1188 pan > pdev->angle_range.pan_max ||
1189 tilt < pdev->angle_range.tilt_min ||
1190 tilt > pdev->angle_range.tilt_max)
1193 /* go to relative range, check again */
1194 pan -= pdev->pan_angle;
1195 tilt -= pdev->tilt_angle;
1196 /* angles are specified in degrees * 100, thus the limit = 36000 */
1197 if (pan < -36000 || pan > 36000 || tilt < -36000 || tilt > 36000)
1200 ret = _pwc_mpt_set_angle(pdev, pan, tilt);
1202 pdev->pan_angle += pan;
1203 pdev->tilt_angle += tilt;
1205 if (ret == -EPIPE) /* stall -> out of range */
1210 static int pwc_mpt_get_status(struct pwc_device *pdev, struct pwc_mpt_status *status)
1213 unsigned char buf[5];
1215 ret = RecvControlMsg(GET_MPT_CTL, PT_STATUS_FORMATTER, 5);
1218 status->status = buf[0] & 0x7; // 3 bits are used for reporting
1219 status->time_pan = (buf[1] << 8) + buf[2];
1220 status->time_tilt = (buf[3] << 8) + buf[4];
1225 int pwc_get_cmos_sensor(struct pwc_device *pdev, int *sensor)
1228 int ret = -1, request;
1230 if (pdev->type < 675)
1231 request = SENSOR_TYPE_FORMATTER1;
1232 else if (pdev->type < 730)
1233 return -1; /* The Vesta series doesn't have this call */
1235 request = SENSOR_TYPE_FORMATTER2;
1237 ret = RecvControlMsg(GET_STATUS_CTL, request, 1);
1240 if (pdev->type < 675)
1241 *sensor = buf | 0x100;
1248 /* End of Add-Ons */
1249 /* ************************************************* */
1251 /* Linux 2.5.something and 2.6 pass direct pointers to arguments of
1252 ioctl() calls. With 2.4, you have to do tedious copy_from_user()
1253 and copy_to_user() calls. With these macros we circumvent this,
1254 and let me maintain only one source file. The functionality is
1255 exactly the same otherwise.
1259 /* define local variable for arg */
1260 #define ARG_DEF(ARG_type, ARG_name)\
1261 ARG_type *ARG_name = arg;
1262 /* copy arg to local variable */
1263 #define ARG_IN(ARG_name) /* nothing */
1264 /* argument itself (referenced) */
1265 #define ARGR(ARG_name) (*ARG_name)
1266 /* argument address */
1267 #define ARGA(ARG_name) ARG_name
1268 /* copy local variable to arg */
1269 #define ARG_OUT(ARG_name) /* nothing */
1272 int pwc_ioctl(struct pwc_device *pdev, unsigned int cmd, void *arg)
1277 case VIDIOCPWCRUSER:
1279 if (pwc_restore_user(pdev))
1284 case VIDIOCPWCSUSER:
1286 if (pwc_save_user(pdev))
1291 case VIDIOCPWCFACTORY:
1293 if (pwc_restore_factory(pdev))
1298 case VIDIOCPWCSCQUAL:
1303 if (ARGR(qual) < 0 || ARGR(qual) > 3)
1306 ret = pwc_try_video_mode(pdev, pdev->view.x, pdev->view.y, pdev->vframes, ARGR(qual), pdev->vsnapshot);
1308 pdev->vcompression = ARGR(qual);
1312 case VIDIOCPWCGCQUAL:
1316 ARGR(qual) = pdev->vcompression;
1321 case VIDIOCPWCPROBE:
1323 ARG_DEF(struct pwc_probe, probe)
1325 strcpy(ARGR(probe).name, pdev->vdev->name);
1326 ARGR(probe).type = pdev->type;
1331 case VIDIOCPWCGSERIAL:
1333 ARG_DEF(struct pwc_serial, serial)
1335 strcpy(ARGR(serial).serial, pdev->serial);
1345 if (pwc_set_agc(pdev, ARGR(agc) < 0 ? 1 : 0, ARGR(agc)))
1354 if (pwc_get_agc(pdev, ARGA(agc)))
1360 case VIDIOCPWCSSHUTTER:
1362 ARG_DEF(int, shutter_speed)
1364 ARG_IN(shutter_speed)
1365 ret = pwc_set_shutter_speed(pdev, ARGR(shutter_speed) < 0 ? 1 : 0, ARGR(shutter_speed));
1371 ARG_DEF(struct pwc_whitebalance, wb)
1374 ret = pwc_set_awb(pdev, ARGR(wb).mode);
1375 if (ret >= 0 && ARGR(wb).mode == PWC_WB_MANUAL) {
1376 pwc_set_red_gain(pdev, ARGR(wb).manual_red);
1377 pwc_set_blue_gain(pdev, ARGR(wb).manual_blue);
1384 ARG_DEF(struct pwc_whitebalance, wb)
1386 memset(ARGA(wb), 0, sizeof(struct pwc_whitebalance));
1387 ARGR(wb).mode = pwc_get_awb(pdev);
1388 if (ARGR(wb).mode < 0)
1391 if (ARGR(wb).mode == PWC_WB_MANUAL) {
1392 ret = pwc_get_red_gain(pdev, &ARGR(wb).manual_red);
1395 ret = pwc_get_blue_gain(pdev, &ARGR(wb).manual_blue);
1399 if (ARGR(wb).mode == PWC_WB_AUTO) {
1400 ret = pwc_read_red_gain(pdev, &ARGR(wb).read_red);
1403 ret = pwc_read_blue_gain(pdev, &ARGR(wb).read_blue);
1412 case VIDIOCPWCSAWBSPEED:
1414 ARG_DEF(struct pwc_wb_speed, wbs)
1416 if (ARGR(wbs).control_speed > 0) {
1417 ret = pwc_set_wb_speed(pdev, ARGR(wbs).control_speed);
1419 if (ARGR(wbs).control_delay > 0) {
1420 ret = pwc_set_wb_delay(pdev, ARGR(wbs).control_delay);
1425 case VIDIOCPWCGAWBSPEED:
1427 ARG_DEF(struct pwc_wb_speed, wbs)
1429 ret = pwc_get_wb_speed(pdev, &ARGR(wbs).control_speed);
1432 ret = pwc_get_wb_delay(pdev, &ARGR(wbs).control_delay);
1441 ARG_DEF(struct pwc_leds, leds)
1444 ret = pwc_set_leds(pdev, ARGR(leds).led_on, ARGR(leds).led_off);
1451 ARG_DEF(struct pwc_leds, leds)
1453 ret = pwc_get_leds(pdev, &ARGR(leds).led_on, &ARGR(leds).led_off);
1458 case VIDIOCPWCSCONTOUR:
1460 ARG_DEF(int, contour)
1463 ret = pwc_set_contour(pdev, ARGR(contour));
1467 case VIDIOCPWCGCONTOUR:
1469 ARG_DEF(int, contour)
1471 ret = pwc_get_contour(pdev, ARGA(contour));
1476 case VIDIOCPWCSBACKLIGHT:
1478 ARG_DEF(int, backlight)
1481 ret = pwc_set_backlight(pdev, ARGR(backlight));
1485 case VIDIOCPWCGBACKLIGHT:
1487 ARG_DEF(int, backlight)
1489 ret = pwc_get_backlight(pdev, ARGA(backlight));
1494 case VIDIOCPWCSFLICKER:
1496 ARG_DEF(int, flicker)
1499 ret = pwc_set_flicker(pdev, ARGR(flicker));
1503 case VIDIOCPWCGFLICKER:
1505 ARG_DEF(int, flicker)
1507 ret = pwc_get_flicker(pdev, ARGA(flicker));
1512 case VIDIOCPWCSDYNNOISE:
1514 ARG_DEF(int, dynnoise)
1517 ret = pwc_set_dynamic_noise(pdev, ARGR(dynnoise));
1521 case VIDIOCPWCGDYNNOISE:
1523 ARG_DEF(int, dynnoise)
1525 ret = pwc_get_dynamic_noise(pdev, ARGA(dynnoise));
1530 case VIDIOCPWCGREALSIZE:
1532 ARG_DEF(struct pwc_imagesize, size)
1534 ARGR(size).width = pdev->image.x;
1535 ARGR(size).height = pdev->image.y;
1540 case VIDIOCPWCMPTRESET:
1542 if (pdev->features & FEATURE_MOTOR_PANTILT)
1547 ret = pwc_mpt_reset(pdev, ARGR(flags));
1556 case VIDIOCPWCMPTGRANGE:
1558 if (pdev->features & FEATURE_MOTOR_PANTILT)
1560 ARG_DEF(struct pwc_mpt_range, range)
1562 ARGR(range) = pdev->angle_range;
1572 case VIDIOCPWCMPTSANGLE:
1574 int new_pan, new_tilt;
1576 if (pdev->features & FEATURE_MOTOR_PANTILT)
1578 ARG_DEF(struct pwc_mpt_angles, angles)
1581 /* The camera can only set relative angles, so
1582 do some calculations when getting an absolute angle .
1584 if (ARGR(angles).absolute)
1586 new_pan = ARGR(angles).pan;
1587 new_tilt = ARGR(angles).tilt;
1591 new_pan = pdev->pan_angle + ARGR(angles).pan;
1592 new_tilt = pdev->tilt_angle + ARGR(angles).tilt;
1594 ret = pwc_mpt_set_angle(pdev, new_pan, new_tilt);
1603 case VIDIOCPWCMPTGANGLE:
1606 if (pdev->features & FEATURE_MOTOR_PANTILT)
1608 ARG_DEF(struct pwc_mpt_angles, angles)
1610 ARGR(angles).absolute = 1;
1611 ARGR(angles).pan = pdev->pan_angle;
1612 ARGR(angles).tilt = pdev->tilt_angle;
1622 case VIDIOCPWCMPTSTATUS:
1624 if (pdev->features & FEATURE_MOTOR_PANTILT)
1626 ARG_DEF(struct pwc_mpt_status, status)
1628 ret = pwc_mpt_get_status(pdev, ARGA(status));
1638 case VIDIOCPWCGVIDCMD:
1640 ARG_DEF(struct pwc_video_command, cmd);
1642 ARGR(cmd).type = pdev->type;
1643 ARGR(cmd).release = pdev->release;
1644 ARGR(cmd).command_len = pdev->cmd_len;
1645 memcpy(&ARGR(cmd).command_buf, pdev->cmd_buf, pdev->cmd_len);
1646 ARGR(cmd).bandlength = pdev->vbandlength;
1647 ARGR(cmd).frame_size = pdev->frame_size;
1652 case VIDIOCPWCGVIDTABLE:
1654 ARG_DEF(struct pwc_table_init_buffer, table);
1655 ARGR(table).len = pdev->cmd_len;
1656 memcpy(&ARGR(table).buffer, pdev->decompress_data, pdev->decompressor->table_size);
1673 /* vim: set cinoptions= formatoptions=croql cindent shiftwidth=8 tabstop=8: */