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 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-ioctl.h"
48 #include "pwc-uncompress.h"
49 #include "pwc-kiara.h"
50 #include "pwc-timon.h"
52 /* Request types: video */
53 #define SET_LUM_CTL 0x01
54 #define GET_LUM_CTL 0x02
55 #define SET_CHROM_CTL 0x03
56 #define GET_CHROM_CTL 0x04
57 #define SET_STATUS_CTL 0x05
58 #define GET_STATUS_CTL 0x06
59 #define SET_EP_STREAM_CTL 0x07
60 #define GET_EP_STREAM_CTL 0x08
61 #define SET_MPT_CTL 0x0D
62 #define GET_MPT_CTL 0x0E
64 /* Selectors for the Luminance controls [GS]ET_LUM_CTL */
65 #define AGC_MODE_FORMATTER 0x2000
66 #define PRESET_AGC_FORMATTER 0x2100
67 #define SHUTTER_MODE_FORMATTER 0x2200
68 #define PRESET_SHUTTER_FORMATTER 0x2300
69 #define PRESET_CONTOUR_FORMATTER 0x2400
70 #define AUTO_CONTOUR_FORMATTER 0x2500
71 #define BACK_LIGHT_COMPENSATION_FORMATTER 0x2600
72 #define CONTRAST_FORMATTER 0x2700
73 #define DYNAMIC_NOISE_CONTROL_FORMATTER 0x2800
74 #define FLICKERLESS_MODE_FORMATTER 0x2900
75 #define AE_CONTROL_SPEED 0x2A00
76 #define BRIGHTNESS_FORMATTER 0x2B00
77 #define GAMMA_FORMATTER 0x2C00
79 /* Selectors for the Chrominance controls [GS]ET_CHROM_CTL */
80 #define WB_MODE_FORMATTER 0x1000
81 #define AWB_CONTROL_SPEED_FORMATTER 0x1100
82 #define AWB_CONTROL_DELAY_FORMATTER 0x1200
83 #define PRESET_MANUAL_RED_GAIN_FORMATTER 0x1300
84 #define PRESET_MANUAL_BLUE_GAIN_FORMATTER 0x1400
85 #define COLOUR_MODE_FORMATTER 0x1500
86 #define SATURATION_MODE_FORMATTER1 0x1600
87 #define SATURATION_MODE_FORMATTER2 0x1700
89 /* Selectors for the Status controls [GS]ET_STATUS_CTL */
90 #define SAVE_USER_DEFAULTS_FORMATTER 0x0200
91 #define RESTORE_USER_DEFAULTS_FORMATTER 0x0300
92 #define RESTORE_FACTORY_DEFAULTS_FORMATTER 0x0400
93 #define READ_AGC_FORMATTER 0x0500
94 #define READ_SHUTTER_FORMATTER 0x0600
95 #define READ_RED_GAIN_FORMATTER 0x0700
96 #define READ_BLUE_GAIN_FORMATTER 0x0800
97 #define SENSOR_TYPE_FORMATTER1 0x0C00
98 #define READ_RAW_Y_MEAN_FORMATTER 0x3100
99 #define SET_POWER_SAVE_MODE_FORMATTER 0x3200
100 #define MIRROR_IMAGE_FORMATTER 0x3300
101 #define LED_FORMATTER 0x3400
102 #define SENSOR_TYPE_FORMATTER2 0x3700
104 /* Formatters for the Video Endpoint controls [GS]ET_EP_STREAM_CTL */
105 #define VIDEO_OUTPUT_CONTROL_FORMATTER 0x0100
107 /* Formatters for the motorized pan & tilt [GS]ET_MPT_CTL */
108 #define PT_RELATIVE_CONTROL_FORMATTER 0x01
109 #define PT_RESET_CONTROL_FORMATTER 0x02
110 #define PT_STATUS_FORMATTER 0x03
112 static char *size2name[PSZ_MAX] =
124 /* Entries for the Nala (645/646) camera; the Nala doesn't have compression
125 preferences, so you either get compressed or non-compressed streams.
127 An alternate value of 0 means this mode is not available at all.
130 struct Nala_table_entry {
131 char alternate; /* USB alternate setting */
132 int compressed; /* Compressed yes/no */
134 unsigned char mode[3]; /* precomputed mode table */
137 static struct Nala_table_entry Nala_table[PSZ_MAX][8] =
139 #include "pwc-nala.h"
143 /****************************************************************************/
146 #define SendControlMsg(request, value, buflen) \
147 usb_control_msg(pdev->udev, usb_sndctrlpipe(pdev->udev, 0), \
149 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, \
154 #define RecvControlMsg(request, value, buflen) \
155 usb_control_msg(pdev->udev, usb_rcvctrlpipe(pdev->udev, 0), \
157 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, \
164 void pwc_hexdump(void *p, int len)
170 s = (unsigned char *)p;
173 Debug("Doing hexdump @ %p, %d bytes.\n", p, len);
174 for (i = 0; i < len; i++) {
175 d += sprintf(d, "%02X ", *s++);
176 if ((i & 0xF) == 0xF) {
187 static inline int send_video_command(struct usb_device *udev, int index, void *buf, int buflen)
189 return usb_control_msg(udev,
190 usb_sndctrlpipe(udev, 0),
192 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
193 VIDEO_OUTPUT_CONTROL_FORMATTER,
200 static inline int set_video_mode_Nala(struct pwc_device *pdev, int size, int frames)
202 unsigned char buf[3];
204 struct Nala_table_entry *pEntry;
205 int frames2frames[31] =
206 { /* closest match of framerate */
207 0, 0, 0, 0, 4, /* 0-4 */
208 5, 5, 7, 7, 10, /* 5-9 */
209 10, 10, 12, 12, 15, /* 10-14 */
210 15, 15, 15, 20, 20, /* 15-19 */
211 20, 20, 20, 24, 24, /* 20-24 */
212 24, 24, 24, 24, 24, /* 25-29 */
215 int frames2table[31] =
216 { 0, 0, 0, 0, 0, /* 0-4 */
217 1, 1, 1, 2, 2, /* 5-9 */
218 3, 3, 4, 4, 4, /* 10-14 */
219 5, 5, 5, 5, 5, /* 15-19 */
220 6, 6, 6, 6, 7, /* 20-24 */
221 7, 7, 7, 7, 7, /* 25-29 */
225 if (size < 0 || size > PSZ_CIF || frames < 4 || frames > 25)
227 frames = frames2frames[frames];
228 fps = frames2table[frames];
229 pEntry = &Nala_table[size][fps];
230 if (pEntry->alternate == 0)
233 if (pEntry->compressed)
234 return -ENOENT; /* Not supported. */
236 memcpy(buf, pEntry->mode, 3);
237 ret = send_video_command(pdev->udev, pdev->vendpoint, buf, 3);
239 Debug("Failed to send video command... %d\n", ret);
242 if (pEntry->compressed && pdev->vpalette != VIDEO_PALETTE_RAW)
247 /* pwc_dec1_init(pdev->type, pdev->release, buf, pdev->decompress_data); */
257 /* pwc_dec23_init(pdev->type, pdev->release, buf, pdev->decompress_data); */
263 memcpy(pdev->cmd_buf, buf, 3);
265 /* Set various parameters */
266 pdev->vframes = frames;
268 pdev->valternate = pEntry->alternate;
269 pdev->image = pwc_image_sizes[size];
270 pdev->frame_size = (pdev->image.x * pdev->image.y * 3) / 2;
271 if (pEntry->compressed) {
272 if (pdev->release < 5) { /* 4 fold compression */
273 pdev->vbandlength = 528;
274 pdev->frame_size /= 4;
277 pdev->vbandlength = 704;
278 pdev->frame_size /= 3;
282 pdev->vbandlength = 0;
287 static inline int set_video_mode_Timon(struct pwc_device *pdev, int size, int frames, int compression, int snapshot)
289 unsigned char buf[13];
290 const struct Timon_table_entry *pChoose;
293 if (size >= PSZ_MAX || frames < 5 || frames > 30 || compression < 0 || compression > 3)
295 if (size == PSZ_VGA && frames > 15)
297 fps = (frames / 5) - 1;
299 /* Find a supported framerate with progressively higher compression ratios
300 if the preferred ratio is not available.
303 while (compression <= 3) {
304 pChoose = &Timon_table[size][fps][compression];
305 if (pChoose->alternate != 0)
309 if (pChoose == NULL || pChoose->alternate == 0)
310 return -ENOENT; /* Not supported. */
312 memcpy(buf, pChoose->mode, 13);
315 ret = send_video_command(pdev->udev, pdev->vendpoint, buf, 13);
319 /* if (pChoose->bandlength > 0 && pdev->vpalette != VIDEO_PALETTE_RAW)
320 pwc_dec23_init(pdev->type, pdev->release, buf, pdev->decompress_data); */
323 memcpy(pdev->cmd_buf, buf, 13);
325 /* Set various parameters */
326 pdev->vframes = frames;
328 pdev->vsnapshot = snapshot;
329 pdev->valternate = pChoose->alternate;
330 pdev->image = pwc_image_sizes[size];
331 pdev->vbandlength = pChoose->bandlength;
332 if (pChoose->bandlength > 0)
333 pdev->frame_size = (pChoose->bandlength * pdev->image.y) / 4;
335 pdev->frame_size = (pdev->image.x * pdev->image.y * 12) / 8;
340 static inline int set_video_mode_Kiara(struct pwc_device *pdev, int size, int frames, int compression, int snapshot)
342 const struct Kiara_table_entry *pChoose = NULL;
344 unsigned char buf[12];
345 struct Kiara_table_entry RawEntry = {6, 773, 1272, {0xAD, 0xF4, 0x10, 0x27, 0xB6, 0x24, 0x96, 0x02, 0x30, 0x05, 0x03, 0x80}};
347 if (size >= PSZ_MAX || frames < 5 || frames > 30 || compression < 0 || compression > 3)
349 if (size == PSZ_VGA && frames > 15)
351 fps = (frames / 5) - 1;
353 /* special case: VGA @ 5 fps and snapshot is raw bayer mode */
354 if (size == PSZ_VGA && frames == 5 && snapshot)
356 /* Only available in case the raw palette is selected or
357 we have the decompressor available. This mode is
358 only available in compressed form
360 if (pdev->vpalette == VIDEO_PALETTE_RAW)
362 Info("Choosing VGA/5 BAYER mode (%d).\n", pdev->vpalette);
367 Info("VGA/5 BAYER mode _must_ have a decompressor available, or use RAW palette.\n");
372 /* Find a supported framerate with progressively higher compression ratios
373 if the preferred ratio is not available.
374 Skip this step when using RAW modes.
376 while (compression <= 3) {
377 pChoose = &Kiara_table[size][fps][compression];
378 if (pChoose->alternate != 0)
383 if (pChoose == NULL || pChoose->alternate == 0)
384 return -ENOENT; /* Not supported. */
386 Debug("Using alternate setting %d.\n", pChoose->alternate);
388 /* usb_control_msg won't take staticly allocated arrays as argument?? */
389 memcpy(buf, pChoose->mode, 12);
393 /* Firmware bug: video endpoint is 5, but commands are sent to endpoint 4 */
394 ret = send_video_command(pdev->udev, 4 /* pdev->vendpoint */, buf, 12);
398 /* if (pChoose->bandlength > 0 && pdev->vpalette != VIDEO_PALETTE_RAW)
399 pwc_dec23_init(pdev->type, pdev->release, buf, pdev->decompress_data); */
402 memcpy(pdev->cmd_buf, buf, 12);
404 pdev->vframes = frames;
406 pdev->vsnapshot = snapshot;
407 pdev->valternate = pChoose->alternate;
408 pdev->image = pwc_image_sizes[size];
409 pdev->vbandlength = pChoose->bandlength;
410 if (pdev->vbandlength > 0)
411 pdev->frame_size = (pdev->vbandlength * pdev->image.y) / 4;
413 pdev->frame_size = (pdev->image.x * pdev->image.y * 12) / 8;
419 static void pwc_set_image_buffer_size(struct pwc_device *pdev)
421 int i, factor = 0, filler = 0;
423 /* for PALETTE_YUV420P */
424 switch(pdev->vpalette)
426 case VIDEO_PALETTE_YUV420P:
430 case VIDEO_PALETTE_RAW:
431 factor = 6; /* can be uncompressed YUV420P */
436 /* Set sizes in bytes */
437 pdev->image.size = pdev->image.x * pdev->image.y * factor / 4;
438 pdev->view.size = pdev->view.x * pdev->view.y * factor / 4;
440 /* Align offset, or you'll get some very weird results in
441 YUV420 mode... x must be multiple of 4 (to get the Y's in
442 place), and y even (or you'll mixup U & V). This is less of a
445 pdev->offset.x = ((pdev->view.x - pdev->image.x) / 2) & 0xFFFC;
446 pdev->offset.y = ((pdev->view.y - pdev->image.y) / 2) & 0xFFFE;
448 /* Fill buffers with gray or black */
449 for (i = 0; i < MAX_IMAGES; i++) {
450 if (pdev->image_ptr[i] != NULL)
451 memset(pdev->image_ptr[i], filler, pdev->view.size);
458 @pdev: device structure
459 @width: viewport width
460 @height: viewport height
461 @frame: framerate, in fps
462 @compression: preferred compression ratio
463 @snapshot: snapshot mode or streaming
465 int pwc_set_video_mode(struct pwc_device *pdev, int width, int height, int frames, int compression, int snapshot)
469 Trace(TRACE_FLOW, "set_video_mode(%dx%d @ %d, palette %d).\n", width, height, frames, pdev->vpalette);
470 size = pwc_decode_size(pdev, width, height);
472 Debug("Could not find suitable size.\n");
475 Debug("decode_size = %d.\n", size);
481 ret = set_video_mode_Nala(pdev, size, frames);
487 ret = set_video_mode_Timon(pdev, size, frames, compression, snapshot);
494 ret = set_video_mode_Kiara(pdev, size, frames, compression, snapshot);
499 Info("Video mode %s@%d fps is only supported with the decompressor module (pwcx).\n", size2name[size], frames);
501 Err("Failed to set video mode %s@%d fps; return code = %d\n", size2name[size], frames, ret);
505 pdev->view.x = width;
506 pdev->view.y = height;
507 pdev->frame_total_size = pdev->frame_size + pdev->frame_header_size + pdev->frame_trailer_size;
508 pwc_set_image_buffer_size(pdev);
509 Trace(TRACE_SIZE, "Set viewport to %dx%d, image size is %dx%d.\n", width, height, pwc_image_sizes[size].x, pwc_image_sizes[size].y);
516 int pwc_get_brightness(struct pwc_device *pdev)
521 ret = RecvControlMsg(GET_LUM_CTL, BRIGHTNESS_FORMATTER, 1);
527 int pwc_set_brightness(struct pwc_device *pdev, int value)
535 buf = (value >> 9) & 0x7f;
536 return SendControlMsg(SET_LUM_CTL, BRIGHTNESS_FORMATTER, 1);
541 int pwc_get_contrast(struct pwc_device *pdev)
546 ret = RecvControlMsg(GET_LUM_CTL, CONTRAST_FORMATTER, 1);
552 int pwc_set_contrast(struct pwc_device *pdev, int value)
560 buf = (value >> 10) & 0x3f;
561 return SendControlMsg(SET_LUM_CTL, CONTRAST_FORMATTER, 1);
566 int pwc_get_gamma(struct pwc_device *pdev)
571 ret = RecvControlMsg(GET_LUM_CTL, GAMMA_FORMATTER, 1);
577 int pwc_set_gamma(struct pwc_device *pdev, int value)
585 buf = (value >> 11) & 0x1f;
586 return SendControlMsg(SET_LUM_CTL, GAMMA_FORMATTER, 1);
592 int pwc_get_saturation(struct pwc_device *pdev)
597 if (pdev->type < 675)
599 ret = RecvControlMsg(GET_CHROM_CTL, pdev->type < 730 ? SATURATION_MODE_FORMATTER2 : SATURATION_MODE_FORMATTER1, 1);
602 return 32768 + buf * 327;
605 int pwc_set_saturation(struct pwc_device *pdev, int value)
609 if (pdev->type < 675)
615 /* saturation ranges from -100 to +100 */
616 buf = (value - 32768) / 327;
617 return SendControlMsg(SET_CHROM_CTL, pdev->type < 730 ? SATURATION_MODE_FORMATTER2 : SATURATION_MODE_FORMATTER1, 1);
622 static inline int pwc_set_agc(struct pwc_device *pdev, int mode, int value)
628 buf = 0x0; /* auto */
630 buf = 0xff; /* fixed */
632 ret = SendControlMsg(SET_LUM_CTL, AGC_MODE_FORMATTER, 1);
634 if (!mode && ret >= 0) {
639 buf = (value >> 10) & 0x3F;
640 ret = SendControlMsg(SET_LUM_CTL, PRESET_AGC_FORMATTER, 1);
647 static inline int pwc_get_agc(struct pwc_device *pdev, int *value)
652 ret = RecvControlMsg(GET_LUM_CTL, AGC_MODE_FORMATTER, 1);
656 if (buf != 0) { /* fixed */
657 ret = RecvControlMsg(GET_LUM_CTL, PRESET_AGC_FORMATTER, 1);
662 *value = (buf << 10);
665 ret = RecvControlMsg(GET_STATUS_CTL, READ_AGC_FORMATTER, 1);
668 /* Gah... this value ranges from 0x00 ... 0x9F */
671 *value = -(48 + buf * 409);
677 static inline int pwc_set_shutter_speed(struct pwc_device *pdev, int mode, int value)
684 buf[0] = 0x0; /* auto */
686 buf[0] = 0xff; /* fixed */
688 ret = SendControlMsg(SET_LUM_CTL, SHUTTER_MODE_FORMATTER, 1);
690 if (!mode && ret >= 0) {
699 /* speed ranges from 0x0 to 0x290 (656) */
700 speed = (value / 100);
702 buf[0] = speed & 0xff;
708 /* speed seems to range from 0x0 to 0xff */
714 ret = SendControlMsg(SET_LUM_CTL, PRESET_SHUTTER_FORMATTER, 2);
722 int pwc_camera_power(struct pwc_device *pdev, int power)
726 if (pdev->type < 675 || (pdev->type < 730 && pdev->release < 6))
727 return 0; /* Not supported by Nala or Timon < release 6 */
730 buf = 0x00; /* active */
732 buf = 0xFF; /* power save */
733 return SendControlMsg(SET_STATUS_CTL, SET_POWER_SAVE_MODE_FORMATTER, 1);
740 static inline int pwc_restore_user(struct pwc_device *pdev)
742 char buf; /* dummy */
743 return SendControlMsg(SET_STATUS_CTL, RESTORE_USER_DEFAULTS_FORMATTER, 0);
746 static inline int pwc_save_user(struct pwc_device *pdev)
748 char buf; /* dummy */
749 return SendControlMsg(SET_STATUS_CTL, SAVE_USER_DEFAULTS_FORMATTER, 0);
752 static inline int pwc_restore_factory(struct pwc_device *pdev)
754 char buf; /* dummy */
755 return SendControlMsg(SET_STATUS_CTL, RESTORE_FACTORY_DEFAULTS_FORMATTER, 0);
758 /* ************************************************* */
759 /* Patch by Alvarado: (not in the original version */
762 * the camera recognizes modes from 0 to 4:
764 * 00: indoor (incandescant lighting)
765 * 01: outdoor (sunlight)
766 * 02: fluorescent lighting
770 static inline int pwc_set_awb(struct pwc_device *pdev, int mode)
781 buf = mode & 0x07; /* just the lowest three bits */
783 ret = SendControlMsg(SET_CHROM_CTL, WB_MODE_FORMATTER, 1);
790 static inline int pwc_get_awb(struct pwc_device *pdev)
795 ret = RecvControlMsg(GET_CHROM_CTL, WB_MODE_FORMATTER, 1);
802 static inline int pwc_set_red_gain(struct pwc_device *pdev, int value)
810 /* only the msb is considered */
812 return SendControlMsg(SET_CHROM_CTL, PRESET_MANUAL_RED_GAIN_FORMATTER, 1);
815 static inline int pwc_get_red_gain(struct pwc_device *pdev, int *value)
820 ret = RecvControlMsg(GET_CHROM_CTL, PRESET_MANUAL_RED_GAIN_FORMATTER, 1);
828 static inline int pwc_set_blue_gain(struct pwc_device *pdev, int value)
836 /* only the msb is considered */
838 return SendControlMsg(SET_CHROM_CTL, PRESET_MANUAL_BLUE_GAIN_FORMATTER, 1);
841 static inline int pwc_get_blue_gain(struct pwc_device *pdev, int *value)
846 ret = RecvControlMsg(GET_CHROM_CTL, PRESET_MANUAL_BLUE_GAIN_FORMATTER, 1);
854 /* The following two functions are different, since they only read the
855 internal red/blue gains, which may be different from the manual
856 gains set or read above.
858 static inline int pwc_read_red_gain(struct pwc_device *pdev, int *value)
863 ret = RecvControlMsg(GET_STATUS_CTL, READ_RED_GAIN_FORMATTER, 1);
870 static inline int pwc_read_blue_gain(struct pwc_device *pdev, int *value)
875 ret = RecvControlMsg(GET_STATUS_CTL, READ_BLUE_GAIN_FORMATTER, 1);
883 static inline int pwc_set_wb_speed(struct pwc_device *pdev, int speed)
887 /* useful range is 0x01..0x20 */
889 return SendControlMsg(SET_CHROM_CTL, AWB_CONTROL_SPEED_FORMATTER, 1);
892 static inline int pwc_get_wb_speed(struct pwc_device *pdev, int *value)
897 ret = RecvControlMsg(GET_CHROM_CTL, AWB_CONTROL_SPEED_FORMATTER, 1);
900 *value = buf * 0x7f0;
905 static inline int pwc_set_wb_delay(struct pwc_device *pdev, int delay)
909 /* useful range is 0x01..0x3F */
911 return SendControlMsg(SET_CHROM_CTL, AWB_CONTROL_DELAY_FORMATTER, 1);
914 static inline int pwc_get_wb_delay(struct pwc_device *pdev, int *value)
919 ret = RecvControlMsg(GET_CHROM_CTL, AWB_CONTROL_DELAY_FORMATTER, 1);
927 int pwc_set_leds(struct pwc_device *pdev, int on_value, int off_value)
929 unsigned char buf[2];
931 if (pdev->type < 730)
941 if (off_value > 0xff)
947 return SendControlMsg(SET_STATUS_CTL, LED_FORMATTER, 2);
950 static int pwc_get_leds(struct pwc_device *pdev, int *on_value, int *off_value)
952 unsigned char buf[2];
955 if (pdev->type < 730) {
961 ret = RecvControlMsg(GET_STATUS_CTL, LED_FORMATTER, 2);
964 *on_value = buf[0] * 100;
965 *off_value = buf[1] * 100;
969 static inline int pwc_set_contour(struct pwc_device *pdev, int contour)
975 buf = 0xff; /* auto contour on */
977 buf = 0x0; /* auto contour off */
978 ret = SendControlMsg(SET_LUM_CTL, AUTO_CONTOUR_FORMATTER, 1);
984 if (contour > 0xffff)
987 buf = (contour >> 10); /* contour preset is [0..3f] */
988 ret = SendControlMsg(SET_LUM_CTL, PRESET_CONTOUR_FORMATTER, 1);
994 static inline int pwc_get_contour(struct pwc_device *pdev, int *contour)
999 ret = RecvControlMsg(GET_LUM_CTL, AUTO_CONTOUR_FORMATTER, 1);
1004 /* auto mode off, query current preset value */
1005 ret = RecvControlMsg(GET_LUM_CTL, PRESET_CONTOUR_FORMATTER, 1);
1008 *contour = buf << 10;
1016 static inline int pwc_set_backlight(struct pwc_device *pdev, int backlight)
1024 return SendControlMsg(SET_LUM_CTL, BACK_LIGHT_COMPENSATION_FORMATTER, 1);
1027 static inline int pwc_get_backlight(struct pwc_device *pdev, int *backlight)
1032 ret = RecvControlMsg(GET_LUM_CTL, BACK_LIGHT_COMPENSATION_FORMATTER, 1);
1040 static inline int pwc_set_flicker(struct pwc_device *pdev, int flicker)
1048 return SendControlMsg(SET_LUM_CTL, FLICKERLESS_MODE_FORMATTER, 1);
1051 static inline int pwc_get_flicker(struct pwc_device *pdev, int *flicker)
1056 ret = RecvControlMsg(GET_LUM_CTL, FLICKERLESS_MODE_FORMATTER, 1);
1064 static inline int pwc_set_dynamic_noise(struct pwc_device *pdev, int noise)
1073 return SendControlMsg(SET_LUM_CTL, DYNAMIC_NOISE_CONTROL_FORMATTER, 1);
1076 static inline 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 static inline int pwc_mpt_set_angle(struct pwc_device *pdev, int pan, int tilt)
1098 unsigned char buf[4];
1100 /* set new relative angle; angles are expressed in degrees * 100,
1101 but cam as .5 degree resolution, hence divide by 200. Also
1102 the angle must be multiplied by 64 before it's send to
1105 pan = 64 * pan / 100;
1106 tilt = -64 * tilt / 100; /* positive tilt is down, which is not what the user would expect */
1107 buf[0] = pan & 0xFF;
1108 buf[1] = (pan >> 8) & 0xFF;
1109 buf[2] = tilt & 0xFF;
1110 buf[3] = (tilt >> 8) & 0xFF;
1111 return SendControlMsg(SET_MPT_CTL, PT_RELATIVE_CONTROL_FORMATTER, 4);
1114 static inline int pwc_mpt_get_status(struct pwc_device *pdev, struct pwc_mpt_status *status)
1117 unsigned char buf[5];
1119 ret = RecvControlMsg(GET_MPT_CTL, PT_STATUS_FORMATTER, 5);
1122 status->status = buf[0] & 0x7; // 3 bits are used for reporting
1123 status->time_pan = (buf[1] << 8) + buf[2];
1124 status->time_tilt = (buf[3] << 8) + buf[4];
1129 int pwc_get_cmos_sensor(struct pwc_device *pdev, int *sensor)
1132 int ret = -1, request;
1134 if (pdev->type < 675)
1135 request = SENSOR_TYPE_FORMATTER1;
1136 else if (pdev->type < 730)
1137 return -1; /* The Vesta series doesn't have this call */
1139 request = SENSOR_TYPE_FORMATTER2;
1141 ret = RecvControlMsg(GET_STATUS_CTL, request, 1);
1144 if (pdev->type < 675)
1145 *sensor = buf | 0x100;
1152 /* End of Add-Ons */
1153 /* ************************************************* */
1155 /* Linux 2.5.something and 2.6 pass direct pointers to arguments of
1156 ioctl() calls. With 2.4, you have to do tedious copy_from_user()
1157 and copy_to_user() calls. With these macros we circumvent this,
1158 and let me maintain only one source file. The functionality is
1159 exactly the same otherwise.
1162 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)
1164 /* define local variable for arg */
1165 #define ARG_DEF(ARG_type, ARG_name)\
1166 ARG_type *ARG_name = arg;
1167 /* copy arg to local variable */
1168 #define ARG_IN(ARG_name) /* nothing */
1169 /* argument itself (referenced) */
1170 #define ARGR(ARG_name) (*ARG_name)
1171 /* argument address */
1172 #define ARGA(ARG_name) ARG_name
1173 /* copy local variable to arg */
1174 #define ARG_OUT(ARG_name) /* nothing */
1178 #define ARG_DEF(ARG_type, ARG_name)\
1180 #define ARG_IN(ARG_name)\
1181 if (copy_from_user(&ARG_name, arg, sizeof(ARG_name))) {\
1185 #define ARGR(ARG_name) ARG_name
1186 #define ARGA(ARG_name) &ARG_name
1187 #define ARG_OUT(ARG_name)\
1188 if (copy_to_user(arg, &ARG_name, sizeof(ARG_name))) {\
1195 int pwc_ioctl(struct pwc_device *pdev, unsigned int cmd, void *arg)
1200 case VIDIOCPWCRUSER:
1202 if (pwc_restore_user(pdev))
1207 case VIDIOCPWCSUSER:
1209 if (pwc_save_user(pdev))
1214 case VIDIOCPWCFACTORY:
1216 if (pwc_restore_factory(pdev))
1221 case VIDIOCPWCSCQUAL:
1226 if (ARGR(qual) < 0 || ARGR(qual) > 3)
1229 ret = pwc_try_video_mode(pdev, pdev->view.x, pdev->view.y, pdev->vframes, ARGR(qual), pdev->vsnapshot);
1231 pdev->vcompression = ARGR(qual);
1235 case VIDIOCPWCGCQUAL:
1239 ARGR(qual) = pdev->vcompression;
1244 case VIDIOCPWCPROBE:
1246 ARG_DEF(struct pwc_probe, probe)
1248 strcpy(ARGR(probe).name, pdev->vdev->name);
1249 ARGR(probe).type = pdev->type;
1254 case VIDIOCPWCGSERIAL:
1256 ARG_DEF(struct pwc_serial, serial)
1258 strcpy(ARGR(serial).serial, pdev->serial);
1268 if (pwc_set_agc(pdev, ARGR(agc) < 0 ? 1 : 0, ARGR(agc)))
1277 if (pwc_get_agc(pdev, ARGA(agc)))
1283 case VIDIOCPWCSSHUTTER:
1285 ARG_DEF(int, shutter_speed)
1287 ARG_IN(shutter_speed)
1288 ret = pwc_set_shutter_speed(pdev, ARGR(shutter_speed) < 0 ? 1 : 0, ARGR(shutter_speed));
1294 ARG_DEF(struct pwc_whitebalance, wb)
1297 ret = pwc_set_awb(pdev, ARGR(wb).mode);
1298 if (ret >= 0 && ARGR(wb).mode == PWC_WB_MANUAL) {
1299 pwc_set_red_gain(pdev, ARGR(wb).manual_red);
1300 pwc_set_blue_gain(pdev, ARGR(wb).manual_blue);
1307 ARG_DEF(struct pwc_whitebalance, wb)
1309 memset(ARGA(wb), 0, sizeof(struct pwc_whitebalance));
1310 ARGR(wb).mode = pwc_get_awb(pdev);
1311 if (ARGR(wb).mode < 0)
1314 if (ARGR(wb).mode == PWC_WB_MANUAL) {
1315 ret = pwc_get_red_gain(pdev, &ARGR(wb).manual_red);
1318 ret = pwc_get_blue_gain(pdev, &ARGR(wb).manual_blue);
1322 if (ARGR(wb).mode == PWC_WB_AUTO) {
1323 ret = pwc_read_red_gain(pdev, &ARGR(wb).read_red);
1326 ret =pwc_read_blue_gain(pdev, &ARGR(wb).read_blue);
1335 case VIDIOCPWCSAWBSPEED:
1337 ARG_DEF(struct pwc_wb_speed, wbs)
1339 if (ARGR(wbs).control_speed > 0) {
1340 ret = pwc_set_wb_speed(pdev, ARGR(wbs).control_speed);
1342 if (ARGR(wbs).control_delay > 0) {
1343 ret = pwc_set_wb_delay(pdev, ARGR(wbs).control_delay);
1348 case VIDIOCPWCGAWBSPEED:
1350 ARG_DEF(struct pwc_wb_speed, wbs)
1352 ret = pwc_get_wb_speed(pdev, &ARGR(wbs).control_speed);
1355 ret = pwc_get_wb_delay(pdev, &ARGR(wbs).control_delay);
1364 ARG_DEF(struct pwc_leds, leds)
1367 ret = pwc_set_leds(pdev, ARGR(leds).led_on, ARGR(leds).led_off);
1374 ARG_DEF(struct pwc_leds, leds)
1376 ret = pwc_get_leds(pdev, &ARGR(leds).led_on, &ARGR(leds).led_off);
1381 case VIDIOCPWCSCONTOUR:
1383 ARG_DEF(int, contour)
1386 ret = pwc_set_contour(pdev, ARGR(contour));
1390 case VIDIOCPWCGCONTOUR:
1392 ARG_DEF(int, contour)
1394 ret = pwc_get_contour(pdev, ARGA(contour));
1399 case VIDIOCPWCSBACKLIGHT:
1401 ARG_DEF(int, backlight)
1404 ret = pwc_set_backlight(pdev, ARGR(backlight));
1408 case VIDIOCPWCGBACKLIGHT:
1410 ARG_DEF(int, backlight)
1412 ret = pwc_get_backlight(pdev, ARGA(backlight));
1417 case VIDIOCPWCSFLICKER:
1419 ARG_DEF(int, flicker)
1422 ret = pwc_set_flicker(pdev, ARGR(flicker));
1426 case VIDIOCPWCGFLICKER:
1428 ARG_DEF(int, flicker)
1430 ret = pwc_get_flicker(pdev, ARGA(flicker));
1435 case VIDIOCPWCSDYNNOISE:
1437 ARG_DEF(int, dynnoise)
1440 ret = pwc_set_dynamic_noise(pdev, ARGR(dynnoise));
1444 case VIDIOCPWCGDYNNOISE:
1446 ARG_DEF(int, dynnoise)
1448 ret = pwc_get_dynamic_noise(pdev, ARGA(dynnoise));
1453 case VIDIOCPWCGREALSIZE:
1455 ARG_DEF(struct pwc_imagesize, size)
1457 ARGR(size).width = pdev->image.x;
1458 ARGR(size).height = pdev->image.y;
1463 case VIDIOCPWCMPTRESET:
1465 if (pdev->features & FEATURE_MOTOR_PANTILT)
1470 ret = pwc_mpt_reset(pdev, ARGR(flags));
1473 pdev->pan_angle = 0;
1474 pdev->tilt_angle = 0;
1484 case VIDIOCPWCMPTGRANGE:
1486 if (pdev->features & FEATURE_MOTOR_PANTILT)
1488 ARG_DEF(struct pwc_mpt_range, range)
1490 ARGR(range) = pdev->angle_range;
1500 case VIDIOCPWCMPTSANGLE:
1502 int new_pan, new_tilt;
1504 if (pdev->features & FEATURE_MOTOR_PANTILT)
1506 ARG_DEF(struct pwc_mpt_angles, angles)
1509 /* The camera can only set relative angles, so
1510 do some calculations when getting an absolute angle .
1512 if (ARGR(angles).absolute)
1514 new_pan = ARGR(angles).pan;
1515 new_tilt = ARGR(angles).tilt;
1519 new_pan = pdev->pan_angle + ARGR(angles).pan;
1520 new_tilt = pdev->tilt_angle + ARGR(angles).tilt;
1522 /* check absolute ranges */
1523 if (new_pan < pdev->angle_range.pan_min ||
1524 new_pan > pdev->angle_range.pan_max ||
1525 new_tilt < pdev->angle_range.tilt_min ||
1526 new_tilt > pdev->angle_range.tilt_max)
1532 /* go to relative range, check again */
1533 new_pan -= pdev->pan_angle;
1534 new_tilt -= pdev->tilt_angle;
1535 /* angles are specified in degrees * 100, thus the limit = 36000 */
1536 if (new_pan < -36000 || new_pan > 36000 || new_tilt < -36000 || new_tilt > 36000)
1539 if (ret == 0) /* no errors so far */
1541 ret = pwc_mpt_set_angle(pdev, new_pan, new_tilt);
1544 pdev->pan_angle += new_pan;
1545 pdev->tilt_angle += new_tilt;
1547 if (ret == -EPIPE) /* stall -> out of range */
1558 case VIDIOCPWCMPTGANGLE:
1561 if (pdev->features & FEATURE_MOTOR_PANTILT)
1563 ARG_DEF(struct pwc_mpt_angles, angles)
1565 ARGR(angles).absolute = 1;
1566 ARGR(angles).pan = pdev->pan_angle;
1567 ARGR(angles).tilt = pdev->tilt_angle;
1577 case VIDIOCPWCMPTSTATUS:
1579 if (pdev->features & FEATURE_MOTOR_PANTILT)
1581 ARG_DEF(struct pwc_mpt_status, status)
1583 ret = pwc_mpt_get_status(pdev, ARGA(status));
1593 case VIDIOCPWCGVIDCMD:
1595 ARG_DEF(struct pwc_video_command, cmd);
1597 ARGR(cmd).type = pdev->type;
1598 ARGR(cmd).release = pdev->release;
1599 ARGR(cmd).command_len = pdev->cmd_len;
1600 memcpy(&ARGR(cmd).command_buf, pdev->cmd_buf, pdev->cmd_len);
1601 ARGR(cmd).bandlength = pdev->vbandlength;
1602 ARGR(cmd).frame_size = pdev->frame_size;
1607 case VIDIOCPWCGVIDTABLE:
1609 ARG_DEF(struct pwc_table_init_buffer, table);
1610 ARGR(table).len = pdev->cmd_len;
1611 memcpy(&ARGR(table).buffer, pdev->decompress_data, pdev->decompressor->table_size);