drivers/media/video/pwc/pwc-ctrl.c

   1 /* Driver for Philips webcam
   2    Functions that send various control messages to the webcam, including
   3    video modes.
   4    (C) 1999-2003 Nemosoft Unv.
   5    (C) 2004-2006 Luc Saillard (luc@saillard.org)
   6
   7    NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx
   8    driver and thus may have bugs that are not present in the original version.
   9    Please send bug reports and support requests to <luc@saillard.org>.
  10
  11    NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx
  12    driver and thus may have bugs that are not present in the original version.
  13    Please send bug reports and support requests to <luc@saillard.org>.
  14    The decompression routines have been implemented by reverse-engineering the
  15    Nemosoft binary pwcx module. Caveat emptor.
  16
  17    This program is free software; you can redistribute it and/or modify
  18    it under the terms of the GNU General Public License as published by
  19    the Free Software Foundation; either version 2 of the License, or
  20    (at your option) any later version.
  21
  22    This program is distributed in the hope that it will be useful,
  23    but WITHOUT ANY WARRANTY; without even the implied warranty of
  24    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25    GNU General Public License for more details.
  26
  27    You should have received a copy of the GNU General Public License
  28    along with this program; if not, write to the Free Software
  29    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  30 */
  31
  32 /*
  33    Changes
  34    2001/08/03  Alvarado   Added methods for changing white balance and
  35                           red/green gains
  36  */
  37
  38 /* Control functions for the cam; brightness, contrast, video mode, etc. */
  39
  40 #ifdef __KERNEL__
  41 #include <asm/uaccess.h>
  42 #endif
  43 #include <asm/errno.h>
  44
  45 #include "pwc.h"
  46 #include "pwc-uncompress.h"
  47 #include "pwc-kiara.h"
  48 #include "pwc-timon.h"
  49 #include "pwc-dec1.h"
  50 #include "pwc-dec23.h"
  51
  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 GET_XX_CTL                      0x09
  62 #define SET_XX_CTL                      0x0A
  63 #define GET_XY_CTL                      0x0B
  64 #define SET_XY_CTL                      0x0C
  65 #define SET_MPT_CTL                     0x0D
  66 #define GET_MPT_CTL                     0x0E
  67
  68 /* Selectors for the Luminance controls [GS]ET_LUM_CTL */
  69 #define AGC_MODE_FORMATTER                      0x2000
  70 #define PRESET_AGC_FORMATTER                    0x2100
  71 #define SHUTTER_MODE_FORMATTER                  0x2200
  72 #define PRESET_SHUTTER_FORMATTER                0x2300
  73 #define PRESET_CONTOUR_FORMATTER                0x2400
  74 #define AUTO_CONTOUR_FORMATTER                  0x2500
  75 #define BACK_LIGHT_COMPENSATION_FORMATTER       0x2600
  76 #define CONTRAST_FORMATTER                      0x2700
  77 #define DYNAMIC_NOISE_CONTROL_FORMATTER         0x2800
  78 #define FLICKERLESS_MODE_FORMATTER              0x2900
  79 #define AE_CONTROL_SPEED                        0x2A00
  80 #define BRIGHTNESS_FORMATTER                    0x2B00
  81 #define GAMMA_FORMATTER                         0x2C00
  82
  83 /* Selectors for the Chrominance controls [GS]ET_CHROM_CTL */
  84 #define WB_MODE_FORMATTER                       0x1000
  85 #define AWB_CONTROL_SPEED_FORMATTER             0x1100
  86 #define AWB_CONTROL_DELAY_FORMATTER             0x1200
  87 #define PRESET_MANUAL_RED_GAIN_FORMATTER        0x1300
  88 #define PRESET_MANUAL_BLUE_GAIN_FORMATTER       0x1400
  89 #define COLOUR_MODE_FORMATTER                   0x1500
  90 #define SATURATION_MODE_FORMATTER1              0x1600
  91 #define SATURATION_MODE_FORMATTER2              0x1700
  92
  93 /* Selectors for the Status controls [GS]ET_STATUS_CTL */
  94 #define SAVE_USER_DEFAULTS_FORMATTER            0x0200
  95 #define RESTORE_USER_DEFAULTS_FORMATTER         0x0300
  96 #define RESTORE_FACTORY_DEFAULTS_FORMATTER      0x0400
  97 #define READ_AGC_FORMATTER                      0x0500
  98 #define READ_SHUTTER_FORMATTER                  0x0600
  99 #define READ_RED_GAIN_FORMATTER                 0x0700
 100 #define READ_BLUE_GAIN_FORMATTER                0x0800
 101 #define GET_STATUS_B00                          0x0B00
 102 #define SENSOR_TYPE_FORMATTER1                  0x0C00
 103 #define GET_STATUS_3000                         0x3000
 104 #define READ_RAW_Y_MEAN_FORMATTER               0x3100
 105 #define SET_POWER_SAVE_MODE_FORMATTER           0x3200
 106 #define MIRROR_IMAGE_FORMATTER                  0x3300
 107 #define LED_FORMATTER                           0x3400
 108 #define LOWLIGHT                                0x3500
 109 #define GET_STATUS_3600                         0x3600
 110 #define SENSOR_TYPE_FORMATTER2                  0x3700
 111 #define GET_STATUS_3800                         0x3800
 112 #define GET_STATUS_4000                         0x4000
 113 #define GET_STATUS_4100                         0x4100  /* Get */
 114 #define CTL_STATUS_4200                         0x4200  /* [GS] 1 */
 115
 116 /* Formatters for the Video Endpoint controls [GS]ET_EP_STREAM_CTL */
 117 #define VIDEO_OUTPUT_CONTROL_FORMATTER          0x0100
 118
 119 /* Formatters for the motorized pan & tilt [GS]ET_MPT_CTL */
 120 #define PT_RELATIVE_CONTROL_FORMATTER           0x01
 121 #define PT_RESET_CONTROL_FORMATTER              0x02
 122 #define PT_STATUS_FORMATTER                     0x03
 123
 124 static const char *size2name[PSZ_MAX] =
 125 {
 126         "subQCIF",
 127         "QSIF",
 128         "QCIF",
 129         "SIF",
 130         "CIF",
 131         "VGA",
 132 };
 133
 134 /********/
 135
 136 /* Entries for the Nala (645/646) camera; the Nala doesn't have compression
 137    preferences, so you either get compressed or non-compressed streams.
 138
 139    An alternate value of 0 means this mode is not available at all.
 140  */
 141
 142 #define PWC_FPS_MAX_NALA 8
 143
 144 struct Nala_table_entry {
 145         char alternate;                 /* USB alternate setting */
 146         int compressed;                 /* Compressed yes/no */
 147
 148         unsigned char mode[3];          /* precomputed mode table */
 149 };
 150
 151 static unsigned int Nala_fps_vector[PWC_FPS_MAX_NALA] = { 4, 5, 7, 10, 12, 15, 20, 24 };
 152
 153 static struct Nala_table_entry Nala_table[PSZ_MAX][PWC_FPS_MAX_NALA] =
 154 {
 155 #include "pwc-nala.h"
 156 };
 157
 158 static void pwc_set_image_buffer_size(struct pwc_device *pdev);
 159
 160 /****************************************************************************/
 161
 162
 163 #define SendControlMsg(request, value, buflen) \
 164         usb_control_msg(pdev->udev, usb_sndctrlpipe(pdev->udev, 0), \
 165                 request, \
 166                 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, \
 167                 value, \
 168                 pdev->vcinterface, \
 169                 &buf, buflen, 500)
 170
 171 #define RecvControlMsg(request, value, buflen) \
 172         usb_control_msg(pdev->udev, usb_rcvctrlpipe(pdev->udev, 0), \
 173                 request, \
 174                 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, \
 175                 value, \
 176                 pdev->vcinterface, \
 177                 &buf, buflen, 500)
 178
 179
 180 static int send_video_command(struct usb_device *udev, int index, void *buf, int buflen)
 181 {
 182         return usb_control_msg(udev,
 183                 usb_sndctrlpipe(udev, 0),
 184                 SET_EP_STREAM_CTL,
 185                 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 186                 VIDEO_OUTPUT_CONTROL_FORMATTER,
 187                 index,
 188                 buf, buflen, 1000);
 189 }
 190
 191
 192
 193 static int set_video_mode_Nala(struct pwc_device *pdev, int size, int frames)
 194 {
 195         unsigned char buf[3];
 196         int ret, fps;
 197         struct Nala_table_entry *pEntry;
 198         int frames2frames[31] =
 199         { /* closest match of framerate */
 200            0,  0,  0,  0,  4,  /*  0-4  */
 201            5,  5,  7,  7, 10,  /*  5-9  */
 202           10, 10, 12, 12, 15,  /* 10-14 */
 203           15, 15, 15, 20, 20,  /* 15-19 */
 204           20, 20, 20, 24, 24,  /* 20-24 */
 205           24, 24, 24, 24, 24,  /* 25-29 */
 206           24                   /* 30    */
 207         };
 208         int frames2table[31] =
 209         { 0, 0, 0, 0, 0, /*  0-4  */
 210           1, 1, 1, 2, 2, /*  5-9  */
 211           3, 3, 4, 4, 4, /* 10-14 */
 212           5, 5, 5, 5, 5, /* 15-19 */
 213           6, 6, 6, 6, 7, /* 20-24 */
 214           7, 7, 7, 7, 7, /* 25-29 */
 215           7              /* 30    */
 216         };
 217
 218         if (size < 0 || size > PSZ_CIF || frames < 4 || frames > 25)
 219                 return -EINVAL;
 220         frames = frames2frames[frames];
 221         fps = frames2table[frames];
 222         pEntry = &Nala_table[size][fps];
 223         if (pEntry->alternate == 0)
 224                 return -EINVAL;
 225
 226         memcpy(buf, pEntry->mode, 3);
 227         ret = send_video_command(pdev->udev, pdev->vendpoint, buf, 3);
 228         if (ret < 0) {
 229                 PWC_DEBUG_MODULE("Failed to send video command... %d\n", ret);
 230                 return ret;
 231         }
 232         if (pEntry->compressed && pdev->vpalette != VIDEO_PALETTE_RAW)
 233                 pwc_dec1_init(pdev->type, pdev->release, buf, pdev->decompress_data);
 234
 235         pdev->cmd_len = 3;
 236         memcpy(pdev->cmd_buf, buf, 3);
 237
 238         /* Set various parameters */
 239         pdev->vframes = frames;
 240         pdev->vsize = size;
 241         pdev->valternate = pEntry->alternate;
 242         pdev->image = pwc_image_sizes[size];
 243         pdev->frame_size = (pdev->image.x * pdev->image.y * 3) / 2;
 244         if (pEntry->compressed) {
 245                 if (pdev->release < 5) { /* 4 fold compression */
 246                         pdev->vbandlength = 528;
 247                         pdev->frame_size /= 4;
 248                 }
 249                 else {
 250                         pdev->vbandlength = 704;
 251                         pdev->frame_size /= 3;
 252                 }
 253         }
 254         else
 255                 pdev->vbandlength = 0;
 256         return 0;
 257 }
 258
 259
 260 static int set_video_mode_Timon(struct pwc_device *pdev, int size, int frames, int compression, int snapshot)
 261 {
 262         unsigned char buf[13];
 263         const struct Timon_table_entry *pChoose;
 264         int ret, fps;
 265
 266         if (size >= PSZ_MAX || frames < 5 || frames > 30 || compression < 0 || compression > 3)
 267                 return -EINVAL;
 268         if (size == PSZ_VGA && frames > 15)
 269                 return -EINVAL;
 270         fps = (frames / 5) - 1;
 271
 272         /* Find a supported framerate with progressively higher compression ratios
 273            if the preferred ratio is not available.
 274         */
 275         pChoose = NULL;
 276         while (compression <= 3) {
 277            pChoose = &Timon_table[size][fps][compression];
 278            if (pChoose->alternate != 0)
 279              break;
 280            compression++;
 281         }
 282         if (pChoose == NULL || pChoose->alternate == 0)
 283                 return -ENOENT; /* Not supported. */
 284
 285         memcpy(buf, pChoose->mode, 13);
 286         if (snapshot)
 287                 buf[0] |= 0x80;
 288         ret = send_video_command(pdev->udev, pdev->vendpoint, buf, 13);
 289         if (ret < 0)
 290                 return ret;
 291
 292         if (pChoose->bandlength > 0 && pdev->vpalette != VIDEO_PALETTE_RAW)
 293                 pwc_dec23_init(pdev, pdev->type, buf);
 294
 295         pdev->cmd_len = 13;
 296         memcpy(pdev->cmd_buf, buf, 13);
 297
 298         /* Set various parameters */
 299         pdev->vframes = frames;
 300         pdev->vsize = size;
 301         pdev->vsnapshot = snapshot;
 302         pdev->valternate = pChoose->alternate;
 303         pdev->image = pwc_image_sizes[size];
 304         pdev->vbandlength = pChoose->bandlength;
 305         if (pChoose->bandlength > 0)
 306                 pdev->frame_size = (pChoose->bandlength * pdev->image.y) / 4;
 307         else
 308                 pdev->frame_size = (pdev->image.x * pdev->image.y * 12) / 8;
 309         return 0;
 310 }
 311
 312
 313 static int set_video_mode_Kiara(struct pwc_device *pdev, int size, int frames, int compression, int snapshot)
 314 {
 315         const struct Kiara_table_entry *pChoose = NULL;
 316         int fps, ret;
 317         unsigned char buf[12];
 318         struct Kiara_table_entry RawEntry = {6, 773, 1272, {0xAD, 0xF4, 0x10, 0x27, 0xB6, 0x24, 0x96, 0x02, 0x30, 0x05, 0x03, 0x80}};
 319
 320         if (size >= PSZ_MAX || frames < 5 || frames > 30 || compression < 0 || compression > 3)
 321                 return -EINVAL;
 322         if (size == PSZ_VGA && frames > 15)
 323                 return -EINVAL;
 324         fps = (frames / 5) - 1;
 325
 326         /* special case: VGA @ 5 fps and snapshot is raw bayer mode */
 327         if (size == PSZ_VGA && frames == 5 && snapshot && pdev->vpalette == VIDEO_PALETTE_RAW)
 328         {
 329                 /* Only available in case the raw palette is selected or
 330                    we have the decompressor available. This mode is
 331                    only available in compressed form
 332                 */
 333                 PWC_DEBUG_SIZE("Choosing VGA/5 BAYER mode.\n");
 334                 pChoose = &RawEntry;
 335         }
 336         else
 337         {
 338                 /* Find a supported framerate with progressively higher compression ratios
 339                    if the preferred ratio is not available.
 340                    Skip this step when using RAW modes.
 341                 */
 342                 snapshot = 0;
 343                 while (compression <= 3) {
 344                         pChoose = &Kiara_table[size][fps][compression];
 345                         if (pChoose->alternate != 0)
 346                                 break;
 347                         compression++;
 348                 }
 349         }
 350         if (pChoose == NULL || pChoose->alternate == 0)
 351                 return -ENOENT; /* Not supported. */
 352
 353         PWC_TRACE("Using alternate setting %d.\n", pChoose->alternate);
 354
 355         /* usb_control_msg won't take staticly allocated arrays as argument?? */
 356         memcpy(buf, pChoose->mode, 12);
 357         if (snapshot)
 358                 buf[0] |= 0x80;
 359
 360         /* Firmware bug: video endpoint is 5, but commands are sent to endpoint 4 */
 361         ret = send_video_command(pdev->udev, 4 /* pdev->vendpoint */, buf, 12);
 362         if (ret < 0)
 363                 return ret;
 364
 365         if (pChoose->bandlength > 0 && pdev->vpalette != VIDEO_PALETTE_RAW)
 366                 pwc_dec23_init(pdev, pdev->type, buf);
 367
 368         pdev->cmd_len = 12;
 369         memcpy(pdev->cmd_buf, buf, 12);
 370         /* All set and go */
 371         pdev->vframes = frames;
 372         pdev->vsize = size;
 373         pdev->vsnapshot = snapshot;
 374         pdev->valternate = pChoose->alternate;
 375         pdev->image = pwc_image_sizes[size];
 376         pdev->vbandlength = pChoose->bandlength;
 377         if (pdev->vbandlength > 0)
 378                 pdev->frame_size = (pdev->vbandlength * pdev->image.y) / 4;
 379         else
 380                 pdev->frame_size = (pdev->image.x * pdev->image.y * 12) / 8;
 381         PWC_TRACE("frame_size=%d, vframes=%d, vsize=%d, vsnapshot=%d, vbandlength=%d\n",
 382             pdev->frame_size,pdev->vframes,pdev->vsize,pdev->vsnapshot,pdev->vbandlength);
 383         return 0;
 384 }
 385
 386
 387
 388 /**
 389    @pdev: device structure
 390    @width: viewport width
 391    @height: viewport height
 392    @frame: framerate, in fps
 393    @compression: preferred compression ratio
 394    @snapshot: snapshot mode or streaming
 395  */
 396 int pwc_set_video_mode(struct pwc_device *pdev, int width, int height, int frames, int compression, int snapshot)
 397 {
 398         int ret, size;
 399
 400         PWC_DEBUG_FLOW("set_video_mode(%dx%d @ %d, palette %d).\n", width, height, frames, pdev->vpalette);
 401         size = pwc_decode_size(pdev, width, height);
 402         if (size < 0) {
 403                 PWC_DEBUG_MODULE("Could not find suitable size.\n");
 404                 return -ERANGE;
 405         }
 406         PWC_TRACE("decode_size = %d.\n", size);
 407
 408         if (DEVICE_USE_CODEC1(pdev->type)) {
 409                 ret = set_video_mode_Nala(pdev, size, frames);
 410
 411         } else if (DEVICE_USE_CODEC3(pdev->type)) {
 412                 ret = set_video_mode_Kiara(pdev, size, frames, compression, snapshot);
 413
 414         } else {
 415                 ret = set_video_mode_Timon(pdev, size, frames, compression, snapshot);
 416         }
 417         if (ret < 0) {
 418                 PWC_ERROR("Failed to set video mode %s@%d fps; return code = %d\n", size2name[size], frames, ret);
 419                 return ret;
 420         }
 421         pdev->view.x = width;
 422         pdev->view.y = height;
 423         pdev->frame_total_size = pdev->frame_size + pdev->frame_header_size + pdev->frame_trailer_size;
 424         pwc_set_image_buffer_size(pdev);
 425         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);
 426         return 0;
 427 }
 428
 429 static unsigned int pwc_get_fps_Nala(struct pwc_device *pdev, unsigned int index, unsigned int size)
 430 {
 431         unsigned int i;
 432
 433         for (i = 0; i < PWC_FPS_MAX_NALA; i++) {
 434                 if (Nala_table[size][i].alternate) {
 435                         if (index--==0) return Nala_fps_vector[i];
 436                 }
 437         }
 438         return 0;
 439 }
 440
 441 static unsigned int pwc_get_fps_Kiara(struct pwc_device *pdev, unsigned int index, unsigned int size)
 442 {
 443         unsigned int i;
 444
 445         for (i = 0; i < PWC_FPS_MAX_KIARA; i++) {
 446                 if (Kiara_table[size][i][3].alternate) {
 447                         if (index--==0) return Kiara_fps_vector[i];
 448                 }
 449         }
 450         return 0;
 451 }
 452
 453 static unsigned int pwc_get_fps_Timon(struct pwc_device *pdev, unsigned int index, unsigned int size)
 454 {
 455         unsigned int i;
 456
 457         for (i=0; i < PWC_FPS_MAX_TIMON; i++) {
 458                 if (Timon_table[size][i][3].alternate) {
 459                         if (index--==0) return Timon_fps_vector[i];
 460                 }
 461         }
 462         return 0;
 463 }
 464
 465 unsigned int pwc_get_fps(struct pwc_device *pdev, unsigned int index, unsigned int size)
 466 {
 467         unsigned int ret;
 468
 469         if (DEVICE_USE_CODEC1(pdev->type)) {
 470                 ret = pwc_get_fps_Nala(pdev, index, size);
 471
 472         } else if (DEVICE_USE_CODEC3(pdev->type)) {
 473                 ret = pwc_get_fps_Kiara(pdev, index, size);
 474
 475         } else {
 476                 ret = pwc_get_fps_Timon(pdev, index, size);
 477         }
 478
 479         return ret;
 480 }
 481
 482 #define BLACK_Y 0
 483 #define BLACK_U 128
 484 #define BLACK_V 128
 485
 486 static void pwc_set_image_buffer_size(struct pwc_device *pdev)
 487 {
 488         int i, factor = 0;
 489
 490         /* for PALETTE_YUV420P */
 491         switch(pdev->vpalette)
 492         {
 493         case VIDEO_PALETTE_YUV420P:
 494                 factor = 6;
 495                 break;
 496         case VIDEO_PALETTE_RAW:
 497                 factor = 6; /* can be uncompressed YUV420P */
 498                 break;
 499         }
 500
 501         /* Set sizes in bytes */
 502         pdev->image.size = pdev->image.x * pdev->image.y * factor / 4;
 503         pdev->view.size  = pdev->view.x  * pdev->view.y  * factor / 4;
 504
 505         /* Align offset, or you'll get some very weird results in
 506            YUV420 mode... x must be multiple of 4 (to get the Y's in
 507            place), and y even (or you'll mixup U & V). This is less of a
 508            problem for YUV420P.
 509          */
 510         pdev->offset.x = ((pdev->view.x - pdev->image.x) / 2) & 0xFFFC;
 511         pdev->offset.y = ((pdev->view.y - pdev->image.y) / 2) & 0xFFFE;
 512
 513         /* Fill buffers with black colors */
 514         for (i = 0; i < pwc_mbufs; i++) {
 515                 unsigned char *p = pdev->image_data + pdev->images[i].offset;
 516                 memset(p, BLACK_Y, pdev->view.x * pdev->view.y);
 517                 p += pdev->view.x * pdev->view.y;
 518                 memset(p, BLACK_U, pdev->view.x * pdev->view.y/4);
 519                 p += pdev->view.x * pdev->view.y/4;
 520                 memset(p, BLACK_V, pdev->view.x * pdev->view.y/4);
 521         }
 522 }
 523
 524
 525
 526 /* BRIGHTNESS */
 527
 528 int pwc_get_brightness(struct pwc_device *pdev)
 529 {
 530         char buf;
 531         int ret;
 532
 533         ret = RecvControlMsg(GET_LUM_CTL, BRIGHTNESS_FORMATTER, 1);
 534         if (ret < 0)
 535                 return ret;
 536         return buf;
 537 }
 538
 539 int pwc_set_brightness(struct pwc_device *pdev, int value)
 540 {
 541         char buf;
 542
 543         if (value < 0)
 544                 value = 0;
 545         if (value > 0xffff)
 546                 value = 0xffff;
 547         buf = (value >> 9) & 0x7f;
 548         return SendControlMsg(SET_LUM_CTL, BRIGHTNESS_FORMATTER, 1);
 549 }
 550
 551 /* CONTRAST */
 552
 553 int pwc_get_contrast(struct pwc_device *pdev)
 554 {
 555         char buf;
 556         int ret;
 557
 558         ret = RecvControlMsg(GET_LUM_CTL, CONTRAST_FORMATTER, 1);
 559         if (ret < 0)
 560                 return ret;
 561         return buf;
 562 }
 563
 564 int pwc_set_contrast(struct pwc_device *pdev, int value)
 565 {
 566         char buf;
 567
 568         if (value < 0)
 569                 value = 0;
 570         if (value > 0xffff)
 571                 value = 0xffff;
 572         buf = (value >> 10) & 0x3f;
 573         return SendControlMsg(SET_LUM_CTL, CONTRAST_FORMATTER, 1);
 574 }
 575
 576 /* GAMMA */
 577
 578 int pwc_get_gamma(struct pwc_device *pdev)
 579 {
 580         char buf;
 581         int ret;
 582
 583         ret = RecvControlMsg(GET_LUM_CTL, GAMMA_FORMATTER, 1);
 584         if (ret < 0)
 585                 return ret;
 586         return buf;
 587 }
 588
 589 int pwc_set_gamma(struct pwc_device *pdev, int value)
 590 {
 591         char buf;
 592
 593         if (value < 0)
 594                 value = 0;
 595         if (value > 0xffff)
 596                 value = 0xffff;
 597         buf = (value >> 11) & 0x1f;
 598         return SendControlMsg(SET_LUM_CTL, GAMMA_FORMATTER, 1);
 599 }
 600
 601
 602 /* SATURATION */
 603
 604 /* return a value between [-100 , 100] */
 605 int pwc_get_saturation(struct pwc_device *pdev, int *value)
 606 {
 607         char buf;
 608         int ret, saturation_register;
 609
 610         if (pdev->type < 675)
 611                 return -EINVAL;
 612         if (pdev->type < 730)
 613                 saturation_register = SATURATION_MODE_FORMATTER2;
 614         else
 615                 saturation_register = SATURATION_MODE_FORMATTER1;
 616         ret = RecvControlMsg(GET_CHROM_CTL, saturation_register, 1);
 617         if (ret < 0)
 618                 return ret;
 619         *value = (signed)buf;
 620         return 0;
 621 }
 622
 623 /* @param value saturation color between [-100 , 100] */
 624 int pwc_set_saturation(struct pwc_device *pdev, int value)
 625 {
 626         char buf;
 627         int saturation_register;
 628
 629         if (pdev->type < 675)
 630                 return -EINVAL;
 631         if (value < -100)
 632                 value = -100;
 633         if (value > 100)
 634                 value = 100;
 635         if (pdev->type < 730)
 636                 saturation_register = SATURATION_MODE_FORMATTER2;
 637         else
 638                 saturation_register = SATURATION_MODE_FORMATTER1;
 639         return SendControlMsg(SET_CHROM_CTL, saturation_register, 1);
 640 }
 641
 642 /* AGC */
 643
 644 int pwc_set_agc(struct pwc_device *pdev, int mode, int value)
 645 {
 646         char buf;
 647         int ret;
 648
 649         if (mode)
 650                 buf = 0x0; /* auto */
 651         else
 652                 buf = 0xff; /* fixed */
 653
 654         ret = SendControlMsg(SET_LUM_CTL, AGC_MODE_FORMATTER, 1);
 655
 656         if (!mode && ret >= 0) {
 657                 if (value < 0)
 658                         value = 0;
 659                 if (value > 0xffff)
 660                         value = 0xffff;
 661                 buf = (value >> 10) & 0x3F;
 662                 ret = SendControlMsg(SET_LUM_CTL, PRESET_AGC_FORMATTER, 1);
 663         }
 664         if (ret < 0)
 665                 return ret;
 666         return 0;
 667 }
 668
 669 int pwc_get_agc(struct pwc_device *pdev, int *value)
 670 {
 671         unsigned char buf;
 672         int ret;
 673
 674         ret = RecvControlMsg(GET_LUM_CTL, AGC_MODE_FORMATTER, 1);
 675         if (ret < 0)
 676                 return ret;
 677
 678         if (buf != 0) { /* fixed */
 679                 ret = RecvControlMsg(GET_LUM_CTL, PRESET_AGC_FORMATTER, 1);
 680                 if (ret < 0)
 681                         return ret;
 682                 if (buf > 0x3F)
 683                         buf = 0x3F;
 684                 *value = (buf << 10);
 685         }
 686         else { /* auto */
 687                 ret = RecvControlMsg(GET_STATUS_CTL, READ_AGC_FORMATTER, 1);
 688                 if (ret < 0)
 689                         return ret;
 690                 /* Gah... this value ranges from 0x00 ... 0x9F */
 691                 if (buf > 0x9F)
 692                         buf = 0x9F;
 693                 *value = -(48 + buf * 409);
 694         }
 695
 696         return 0;
 697 }
 698
 699 int pwc_set_shutter_speed(struct pwc_device *pdev, int mode, int value)
 700 {
 701         char buf[2];
 702         int speed, ret;
 703
 704
 705         if (mode)
 706                 buf[0] = 0x0;   /* auto */
 707         else
 708                 buf[0] = 0xff; /* fixed */
 709
 710         ret = SendControlMsg(SET_LUM_CTL, SHUTTER_MODE_FORMATTER, 1);
 711
 712         if (!mode && ret >= 0) {
 713                 if (value < 0)
 714                         value = 0;
 715                 if (value > 0xffff)
 716                         value = 0xffff;
 717
 718                 if (DEVICE_USE_CODEC2(pdev->type)) {
 719                         /* speed ranges from 0x0 to 0x290 (656) */
 720                         speed = (value / 100);
 721                         buf[1] = speed >> 8;
 722                         buf[0] = speed & 0xff;
 723                 } else if (DEVICE_USE_CODEC3(pdev->type)) {
 724                         /* speed seems to range from 0x0 to 0xff */
 725                         buf[1] = 0;
 726                         buf[0] = value >> 8;
 727                 }
 728
 729                 ret = SendControlMsg(SET_LUM_CTL, PRESET_SHUTTER_FORMATTER, 2);
 730         }
 731         return ret;
 732 }
 733
 734 /* This function is not exported to v4l1, so output values between 0 -> 256 */
 735 int pwc_get_shutter_speed(struct pwc_device *pdev, int *value)
 736 {
 737         unsigned char buf[2];
 738         int ret;
 739
 740         ret = RecvControlMsg(GET_STATUS_CTL, READ_SHUTTER_FORMATTER, 2);
 741         if (ret < 0)
 742                 return ret;
 743         *value = buf[0] + (buf[1] << 8);
 744         if (DEVICE_USE_CODEC2(pdev->type)) {
 745                 /* speed ranges from 0x0 to 0x290 (656) */
 746                 *value *= 256/656;
 747         } else if (DEVICE_USE_CODEC3(pdev->type)) {
 748                 /* speed seems to range from 0x0 to 0xff */
 749         }
 750         return 0;
 751 }
 752
 753
 754 /* POWER */
 755
 756 int pwc_camera_power(struct pwc_device *pdev, int power)
 757 {
 758         char buf;
 759
 760         if (pdev->type < 675 || (pdev->type < 730 && pdev->release < 6))
 761                 return 0;       /* Not supported by Nala or Timon < release 6 */
 762
 763         if (power)
 764                 buf = 0x00; /* active */
 765         else
 766                 buf = 0xFF; /* power save */
 767         return SendControlMsg(SET_STATUS_CTL, SET_POWER_SAVE_MODE_FORMATTER, 1);
 768 }
 769
 770
 771
 772 /* private calls */
 773
 774 int pwc_restore_user(struct pwc_device *pdev)
 775 {
 776         char buf; /* dummy */
 777         return SendControlMsg(SET_STATUS_CTL, RESTORE_USER_DEFAULTS_FORMATTER, 0);
 778 }
 779
 780 int pwc_save_user(struct pwc_device *pdev)
 781 {
 782         char buf; /* dummy */
 783         return SendControlMsg(SET_STATUS_CTL, SAVE_USER_DEFAULTS_FORMATTER, 0);
 784 }
 785
 786 int pwc_restore_factory(struct pwc_device *pdev)
 787 {
 788         char buf; /* dummy */
 789         return SendControlMsg(SET_STATUS_CTL, RESTORE_FACTORY_DEFAULTS_FORMATTER, 0);
 790 }
 791
 792  /* ************************************************* */
 793  /* Patch by Alvarado: (not in the original version   */
 794
 795  /*
 796   * the camera recognizes modes from 0 to 4:
 797   *
 798   * 00: indoor (incandescant lighting)
 799   * 01: outdoor (sunlight)
 800   * 02: fluorescent lighting
 801   * 03: manual
 802   * 04: auto
 803   */
 804 int pwc_set_awb(struct pwc_device *pdev, int mode)
 805 {
 806         char buf;
 807         int ret;
 808
 809         if (mode < 0)
 810             mode = 0;
 811
 812         if (mode > 4)
 813             mode = 4;
 814
 815         buf = mode & 0x07; /* just the lowest three bits */
 816
 817         ret = SendControlMsg(SET_CHROM_CTL, WB_MODE_FORMATTER, 1);
 818
 819         if (ret < 0)
 820                 return ret;
 821         return 0;
 822 }
 823
 824 int pwc_get_awb(struct pwc_device *pdev)
 825 {
 826         unsigned char buf;
 827         int ret;
 828
 829         ret = RecvControlMsg(GET_CHROM_CTL, WB_MODE_FORMATTER, 1);
 830
 831         if (ret < 0)
 832                 return ret;
 833         return buf;
 834 }
 835
 836 int pwc_set_red_gain(struct pwc_device *pdev, int value)
 837 {
 838         unsigned char buf;
 839
 840         if (value < 0)
 841                 value = 0;
 842         if (value > 0xffff)
 843                 value = 0xffff;
 844         /* only the msb is considered */
 845         buf = value >> 8;
 846         return SendControlMsg(SET_CHROM_CTL, PRESET_MANUAL_RED_GAIN_FORMATTER, 1);
 847 }
 848
 849 int pwc_get_red_gain(struct pwc_device *pdev, int *value)
 850 {
 851         unsigned char buf;
 852         int ret;
 853
 854         ret = RecvControlMsg(GET_CHROM_CTL, PRESET_MANUAL_RED_GAIN_FORMATTER, 1);
 855         if (ret < 0)
 856             return ret;
 857         *value = buf << 8;
 858         return 0;
 859 }
 860
 861
 862 int pwc_set_blue_gain(struct pwc_device *pdev, int value)
 863 {
 864         unsigned char buf;
 865
 866         if (value < 0)
 867                 value = 0;
 868         if (value > 0xffff)
 869                 value = 0xffff;
 870         /* only the msb is considered */
 871         buf = value >> 8;
 872         return SendControlMsg(SET_CHROM_CTL, PRESET_MANUAL_BLUE_GAIN_FORMATTER, 1);
 873 }
 874
 875 int pwc_get_blue_gain(struct pwc_device *pdev, int *value)
 876 {
 877         unsigned char buf;
 878         int ret;
 879
 880         ret = RecvControlMsg(GET_CHROM_CTL, PRESET_MANUAL_BLUE_GAIN_FORMATTER, 1);
 881         if (ret < 0)
 882             return ret;
 883         *value = buf << 8;
 884         return 0;
 885 }
 886
 887
 888 /* The following two functions are different, since they only read the
 889    internal red/blue gains, which may be different from the manual
 890    gains set or read above.
 891  */
 892 static int pwc_read_red_gain(struct pwc_device *pdev, int *value)
 893 {
 894         unsigned char buf;
 895         int ret;
 896
 897         ret = RecvControlMsg(GET_STATUS_CTL, READ_RED_GAIN_FORMATTER, 1);
 898         if (ret < 0)
 899                 return ret;
 900         *value = buf << 8;
 901         return 0;
 902 }
 903
 904 static int pwc_read_blue_gain(struct pwc_device *pdev, int *value)
 905 {
 906         unsigned char buf;
 907         int ret;
 908
 909         ret = RecvControlMsg(GET_STATUS_CTL, READ_BLUE_GAIN_FORMATTER, 1);
 910         if (ret < 0)
 911                 return ret;
 912         *value = buf << 8;
 913         return 0;
 914 }
 915
 916
 917 static int pwc_set_wb_speed(struct pwc_device *pdev, int speed)
 918 {
 919         unsigned char buf;
 920
 921         /* useful range is 0x01..0x20 */
 922         buf = speed / 0x7f0;
 923         return SendControlMsg(SET_CHROM_CTL, AWB_CONTROL_SPEED_FORMATTER, 1);
 924 }
 925
 926 static int pwc_get_wb_speed(struct pwc_device *pdev, int *value)
 927 {
 928         unsigned char buf;
 929         int ret;
 930
 931         ret = RecvControlMsg(GET_CHROM_CTL, AWB_CONTROL_SPEED_FORMATTER, 1);
 932         if (ret < 0)
 933                 return ret;
 934         *value = buf * 0x7f0;
 935         return 0;
 936 }
 937
 938
 939 static int pwc_set_wb_delay(struct pwc_device *pdev, int delay)
 940 {
 941         unsigned char buf;
 942
 943         /* useful range is 0x01..0x3F */
 944         buf = (delay >> 10);
 945         return SendControlMsg(SET_CHROM_CTL, AWB_CONTROL_DELAY_FORMATTER, 1);
 946 }
 947
 948 static int pwc_get_wb_delay(struct pwc_device *pdev, int *value)
 949 {
 950         unsigned char buf;
 951         int ret;
 952
 953         ret = RecvControlMsg(GET_CHROM_CTL, AWB_CONTROL_DELAY_FORMATTER, 1);
 954         if (ret < 0)
 955                 return ret;
 956         *value = buf << 10;
 957         return 0;
 958 }
 959
 960
 961 int pwc_set_leds(struct pwc_device *pdev, int on_value, int off_value)
 962 {
 963         unsigned char buf[2];
 964
 965         if (pdev->type < 730)
 966                 return 0;
 967         on_value /= 100;
 968         off_value /= 100;
 969         if (on_value < 0)
 970                 on_value = 0;
 971         if (on_value > 0xff)
 972                 on_value = 0xff;
 973         if (off_value < 0)
 974                 off_value = 0;
 975         if (off_value > 0xff)
 976                 off_value = 0xff;
 977
 978         buf[0] = on_value;
 979         buf[1] = off_value;
 980
 981         return SendControlMsg(SET_STATUS_CTL, LED_FORMATTER, 2);
 982 }
 983
 984 static int pwc_get_leds(struct pwc_device *pdev, int *on_value, int *off_value)
 985 {
 986         unsigned char buf[2];
 987         int ret;
 988
 989         if (pdev->type < 730) {
 990                 *on_value = -1;
 991                 *off_value = -1;
 992                 return 0;
 993         }
 994
 995         ret = RecvControlMsg(GET_STATUS_CTL, LED_FORMATTER, 2);
 996         if (ret < 0)
 997                 return ret;
 998         *on_value = buf[0] * 100;
 999         *off_value = buf[1] * 100;
1000         return 0;
1001 }
1002
1003 int pwc_set_contour(struct pwc_device *pdev, int contour)
1004 {
1005         unsigned char buf;
1006         int ret;
1007
1008         if (contour < 0)
1009                 buf = 0xff; /* auto contour on */
1010         else
1011                 buf = 0x0; /* auto contour off */
1012         ret = SendControlMsg(SET_LUM_CTL, AUTO_CONTOUR_FORMATTER, 1);
1013         if (ret < 0)
1014                 return ret;
1015
1016         if (contour < 0)
1017                 return 0;
1018         if (contour > 0xffff)
1019                 contour = 0xffff;
1020
1021         buf = (contour >> 10); /* contour preset is [0..3f] */
1022         ret = SendControlMsg(SET_LUM_CTL, PRESET_CONTOUR_FORMATTER, 1);
1023         if (ret < 0)
1024                 return ret;
1025         return 0;
1026 }
1027
1028 int pwc_get_contour(struct pwc_device *pdev, int *contour)
1029 {
1030         unsigned char buf;
1031         int ret;
1032
1033         ret = RecvControlMsg(GET_LUM_CTL, AUTO_CONTOUR_FORMATTER, 1);
1034         if (ret < 0)
1035                 return ret;
1036
1037         if (buf == 0) {
1038                 /* auto mode off, query current preset value */
1039                 ret = RecvControlMsg(GET_LUM_CTL, PRESET_CONTOUR_FORMATTER, 1);
1040                 if (ret < 0)
1041                         return ret;
1042                 *contour = buf << 10;
1043         }
1044         else
1045                 *contour = -1;
1046         return 0;
1047 }
1048
1049
1050 int pwc_set_backlight(struct pwc_device *pdev, int backlight)
1051 {
1052         unsigned char buf;
1053
1054         if (backlight)
1055                 buf = 0xff;
1056         else
1057                 buf = 0x0;
1058         return SendControlMsg(SET_LUM_CTL, BACK_LIGHT_COMPENSATION_FORMATTER, 1);
1059 }
1060
1061 int pwc_get_backlight(struct pwc_device *pdev, int *backlight)
1062 {
1063         int ret;
1064         unsigned char buf;
1065
1066         ret = RecvControlMsg(GET_LUM_CTL, BACK_LIGHT_COMPENSATION_FORMATTER, 1);
1067         if (ret < 0)
1068                 return ret;
1069         *backlight = !!buf;
1070         return 0;
1071 }
1072
1073 int pwc_set_colour_mode(struct pwc_device *pdev, int colour)
1074 {
1075         unsigned char buf;
1076
1077         if (colour)
1078                 buf = 0xff;
1079         else
1080                 buf = 0x0;
1081         return SendControlMsg(SET_CHROM_CTL, COLOUR_MODE_FORMATTER, 1);
1082 }
1083
1084 int pwc_get_colour_mode(struct pwc_device *pdev, int *colour)
1085 {
1086         int ret;
1087         unsigned char buf;
1088
1089         ret = RecvControlMsg(GET_CHROM_CTL, COLOUR_MODE_FORMATTER, 1);
1090         if (ret < 0)
1091                 return ret;
1092         *colour = !!buf;
1093         return 0;
1094 }
1095
1096
1097 int pwc_set_flicker(struct pwc_device *pdev, int flicker)
1098 {
1099         unsigned char buf;
1100
1101         if (flicker)
1102                 buf = 0xff;
1103         else
1104                 buf = 0x0;
1105         return SendControlMsg(SET_LUM_CTL, FLICKERLESS_MODE_FORMATTER, 1);
1106 }
1107
1108 int pwc_get_flicker(struct pwc_device *pdev, int *flicker)
1109 {
1110         int ret;
1111         unsigned char buf;
1112
1113         ret = RecvControlMsg(GET_LUM_CTL, FLICKERLESS_MODE_FORMATTER, 1);
1114         if (ret < 0)
1115                 return ret;
1116         *flicker = !!buf;
1117         return 0;
1118 }
1119
1120 int pwc_set_dynamic_noise(struct pwc_device *pdev, int noise)
1121 {
1122         unsigned char buf;
1123
1124         if (noise < 0)
1125                 noise = 0;
1126         if (noise > 3)
1127                 noise = 3;
1128         buf = noise;
1129         return SendControlMsg(SET_LUM_CTL, DYNAMIC_NOISE_CONTROL_FORMATTER, 1);
1130 }
1131
1132 int pwc_get_dynamic_noise(struct pwc_device *pdev, int *noise)
1133 {
1134         int ret;
1135         unsigned char buf;
1136
1137         ret = RecvControlMsg(GET_LUM_CTL, DYNAMIC_NOISE_CONTROL_FORMATTER, 1);
1138         if (ret < 0)
1139                 return ret;
1140         *noise = buf;
1141         return 0;
1142 }
1143
1144 static int _pwc_mpt_reset(struct pwc_device *pdev, int flags)
1145 {
1146         unsigned char buf;
1147
1148         buf = flags & 0x03; // only lower two bits are currently used
1149         return SendControlMsg(SET_MPT_CTL, PT_RESET_CONTROL_FORMATTER, 1);
1150 }
1151
1152 int pwc_mpt_reset(struct pwc_device *pdev, int flags)
1153 {
1154         int ret;
1155         ret = _pwc_mpt_reset(pdev, flags);
1156         if (ret >= 0) {
1157                 pdev->pan_angle = 0;
1158                 pdev->tilt_angle = 0;
1159         }
1160         return ret;
1161 }
1162
1163 static int _pwc_mpt_set_angle(struct pwc_device *pdev, int pan, int tilt)
1164 {
1165         unsigned char buf[4];
1166
1167         /* set new relative angle; angles are expressed in degrees * 100,
1168            but cam as .5 degree resolution, hence divide by 200. Also
1169            the angle must be multiplied by 64 before it's send to
1170            the cam (??)
1171          */
1172         pan  =  64 * pan  / 100;
1173         tilt = -64 * tilt / 100; /* positive tilt is down, which is not what the user would expect */
1174         buf[0] = pan & 0xFF;
1175         buf[1] = (pan >> 8) & 0xFF;
1176         buf[2] = tilt & 0xFF;
1177         buf[3] = (tilt >> 8) & 0xFF;
1178         return SendControlMsg(SET_MPT_CTL, PT_RELATIVE_CONTROL_FORMATTER, 4);
1179 }
1180
1181 int pwc_mpt_set_angle(struct pwc_device *pdev, int pan, int tilt)
1182 {
1183         int ret;
1184
1185         /* check absolute ranges */
1186         if (pan  < pdev->angle_range.pan_min  ||
1187             pan  > pdev->angle_range.pan_max  ||
1188             tilt < pdev->angle_range.tilt_min ||
1189             tilt > pdev->angle_range.tilt_max)
1190                 return -ERANGE;
1191
1192         /* go to relative range, check again */
1193         pan  -= pdev->pan_angle;
1194         tilt -= pdev->tilt_angle;
1195         /* angles are specified in degrees * 100, thus the limit = 36000 */
1196         if (pan < -36000 || pan > 36000 || tilt < -36000 || tilt > 36000)
1197                 return -ERANGE;
1198
1199         ret = _pwc_mpt_set_angle(pdev, pan, tilt);
1200         if (ret >= 0) {
1201                 pdev->pan_angle  += pan;
1202                 pdev->tilt_angle += tilt;
1203         }
1204         if (ret == -EPIPE) /* stall -> out of range */
1205                 ret = -ERANGE;
1206         return ret;
1207 }
1208
1209 static int pwc_mpt_get_status(struct pwc_device *pdev, struct pwc_mpt_status *status)
1210 {
1211         int ret;
1212         unsigned char buf[5];
1213
1214         ret = RecvControlMsg(GET_MPT_CTL, PT_STATUS_FORMATTER, 5);
1215         if (ret < 0)
1216                 return ret;
1217         status->status = buf[0] & 0x7; // 3 bits are used for reporting
1218         status->time_pan = (buf[1] << 8) + buf[2];
1219         status->time_tilt = (buf[3] << 8) + buf[4];
1220         return 0;
1221 }
1222
1223
1224 int pwc_get_cmos_sensor(struct pwc_device *pdev, int *sensor)
1225 {
1226         unsigned char buf;
1227         int ret = -1, request;
1228
1229         if (pdev->type < 675)
1230                 request = SENSOR_TYPE_FORMATTER1;
1231         else if (pdev->type < 730)
1232                 return -1; /* The Vesta series doesn't have this call */
1233         else
1234                 request = SENSOR_TYPE_FORMATTER2;
1235
1236         ret = RecvControlMsg(GET_STATUS_CTL, request, 1);
1237         if (ret < 0)
1238                 return ret;
1239         if (pdev->type < 675)
1240                 *sensor = buf | 0x100;
1241         else
1242                 *sensor = buf;
1243         return 0;
1244 }
1245
1246
1247  /* End of Add-Ons                                    */
1248  /* ************************************************* */
1249
1250 /* Linux 2.5.something and 2.6 pass direct pointers to arguments of
1251    ioctl() calls. With 2.4, you have to do tedious copy_from_user()
1252    and copy_to_user() calls. With these macros we circumvent this,
1253    and let me maintain only one source file. The functionality is
1254    exactly the same otherwise.
1255  */
1256
1257 /* define local variable for arg */
1258 #define ARG_DEF(ARG_type, ARG_name)\
1259         ARG_type *ARG_name = arg;
1260 /* copy arg to local variable */
1261 #define ARG_IN(ARG_name) /* nothing */
1262 /* argument itself (referenced) */
1263 #define ARGR(ARG_name) (*ARG_name)
1264 /* argument address */
1265 #define ARGA(ARG_name) ARG_name
1266 /* copy local variable to arg */
1267 #define ARG_OUT(ARG_name) /* nothing */
1268
1269 long pwc_ioctl(struct pwc_device *pdev, unsigned int cmd, void *arg)
1270 {
1271         long ret = 0;
1272
1273         switch(cmd) {
1274         case VIDIOCPWCRUSER:
1275         {
1276                 if (pwc_restore_user(pdev))
1277                         ret = -EINVAL;
1278                 break;
1279         }
1280
1281         case VIDIOCPWCSUSER:
1282         {
1283                 if (pwc_save_user(pdev))
1284                         ret = -EINVAL;
1285                 break;
1286         }
1287
1288         case VIDIOCPWCFACTORY:
1289         {
1290                 if (pwc_restore_factory(pdev))
1291                         ret = -EINVAL;
1292                 break;
1293         }
1294
1295         case VIDIOCPWCSCQUAL:
1296         {
1297                 ARG_DEF(int, qual)
1298
1299                 ARG_IN(qual)
1300                 if (ARGR(qual) < 0 || ARGR(qual) > 3)
1301                         ret = -EINVAL;
1302                 else
1303                         ret = pwc_try_video_mode(pdev, pdev->view.x, pdev->view.y, pdev->vframes, ARGR(qual), pdev->vsnapshot);
1304                 if (ret >= 0)
1305                         pdev->vcompression = ARGR(qual);
1306                 break;
1307         }
1308
1309         case VIDIOCPWCGCQUAL:
1310         {
1311                 ARG_DEF(int, qual)
1312
1313                 ARGR(qual) = pdev->vcompression;
1314                 ARG_OUT(qual)
1315                 break;
1316         }
1317
1318         case VIDIOCPWCPROBE:
1319         {
1320                 ARG_DEF(struct pwc_probe, probe)
1321
1322                 strcpy(ARGR(probe).name, pdev->vdev->name);
1323                 ARGR(probe).type = pdev->type;
1324                 ARG_OUT(probe)
1325                 break;
1326         }
1327
1328         case VIDIOCPWCGSERIAL:
1329         {
1330                 ARG_DEF(struct pwc_serial, serial)
1331
1332                 strcpy(ARGR(serial).serial, pdev->serial);
1333                 ARG_OUT(serial)
1334                 break;
1335         }
1336
1337         case VIDIOCPWCSAGC:
1338         {
1339                 ARG_DEF(int, agc)
1340
1341                 ARG_IN(agc)
1342                 if (pwc_set_agc(pdev, ARGR(agc) < 0 ? 1 : 0, ARGR(agc)))
1343                         ret = -EINVAL;
1344                 break;
1345         }
1346
1347         case VIDIOCPWCGAGC:
1348         {
1349                 ARG_DEF(int, agc)
1350
1351                 if (pwc_get_agc(pdev, ARGA(agc)))
1352                         ret = -EINVAL;
1353                 ARG_OUT(agc)
1354                 break;
1355         }
1356
1357         case VIDIOCPWCSSHUTTER:
1358         {
1359                 ARG_DEF(int, shutter_speed)
1360
1361                 ARG_IN(shutter_speed)
1362                 ret = pwc_set_shutter_speed(pdev, ARGR(shutter_speed) < 0 ? 1 : 0, ARGR(shutter_speed));
1363                 break;
1364         }
1365
1366         case VIDIOCPWCSAWB:
1367         {
1368                 ARG_DEF(struct pwc_whitebalance, wb)
1369
1370                 ARG_IN(wb)
1371                 ret = pwc_set_awb(pdev, ARGR(wb).mode);
1372                 if (ret >= 0 && ARGR(wb).mode == PWC_WB_MANUAL) {
1373                         pwc_set_red_gain(pdev, ARGR(wb).manual_red);
1374                         pwc_set_blue_gain(pdev, ARGR(wb).manual_blue);
1375                 }
1376                 break;
1377         }
1378
1379         case VIDIOCPWCGAWB:
1380         {
1381                 ARG_DEF(struct pwc_whitebalance, wb)
1382
1383                 memset(ARGA(wb), 0, sizeof(struct pwc_whitebalance));
1384                 ARGR(wb).mode = pwc_get_awb(pdev);
1385                 if (ARGR(wb).mode < 0)
1386                         ret = -EINVAL;
1387                 else {
1388                         if (ARGR(wb).mode == PWC_WB_MANUAL) {
1389                                 ret = pwc_get_red_gain(pdev, &ARGR(wb).manual_red);
1390                                 if (ret < 0)
1391                                         break;
1392                                 ret = pwc_get_blue_gain(pdev, &ARGR(wb).manual_blue);
1393                                 if (ret < 0)
1394                                         break;
1395                         }
1396                         if (ARGR(wb).mode == PWC_WB_AUTO) {
1397                                 ret = pwc_read_red_gain(pdev, &ARGR(wb).read_red);
1398                                 if (ret < 0)
1399                                         break;
1400                                 ret = pwc_read_blue_gain(pdev, &ARGR(wb).read_blue);
1401                                 if (ret < 0)
1402                                         break;
1403                         }
1404                 }
1405                 ARG_OUT(wb)
1406                 break;
1407         }
1408
1409         case VIDIOCPWCSAWBSPEED:
1410         {
1411                 ARG_DEF(struct pwc_wb_speed, wbs)
1412
1413                 if (ARGR(wbs).control_speed > 0) {
1414                         ret = pwc_set_wb_speed(pdev, ARGR(wbs).control_speed);
1415                 }
1416                 if (ARGR(wbs).control_delay > 0) {
1417                         ret = pwc_set_wb_delay(pdev, ARGR(wbs).control_delay);
1418                 }
1419                 break;
1420         }
1421
1422         case VIDIOCPWCGAWBSPEED:
1423         {
1424                 ARG_DEF(struct pwc_wb_speed, wbs)
1425
1426                 ret = pwc_get_wb_speed(pdev, &ARGR(wbs).control_speed);
1427                 if (ret < 0)
1428                         break;
1429                 ret = pwc_get_wb_delay(pdev, &ARGR(wbs).control_delay);
1430                 if (ret < 0)
1431                         break;
1432                 ARG_OUT(wbs)
1433                 break;
1434         }
1435
1436         case VIDIOCPWCSLED:
1437         {
1438                 ARG_DEF(struct pwc_leds, leds)
1439
1440                 ARG_IN(leds)
1441                 ret = pwc_set_leds(pdev, ARGR(leds).led_on, ARGR(leds).led_off);
1442                 break;
1443         }
1444
1445
1446         case VIDIOCPWCGLED:
1447         {
1448                 ARG_DEF(struct pwc_leds, leds)
1449
1450                 ret = pwc_get_leds(pdev, &ARGR(leds).led_on, &ARGR(leds).led_off);
1451                 ARG_OUT(leds)
1452                 break;
1453         }
1454
1455         case VIDIOCPWCSCONTOUR:
1456         {
1457                 ARG_DEF(int, contour)
1458
1459                 ARG_IN(contour)
1460                 ret = pwc_set_contour(pdev, ARGR(contour));
1461                 break;
1462         }
1463
1464         case VIDIOCPWCGCONTOUR:
1465         {
1466                 ARG_DEF(int, contour)
1467
1468                 ret = pwc_get_contour(pdev, ARGA(contour));
1469                 ARG_OUT(contour)
1470                 break;
1471         }
1472
1473         case VIDIOCPWCSBACKLIGHT:
1474         {
1475                 ARG_DEF(int, backlight)
1476
1477                 ARG_IN(backlight)
1478                 ret = pwc_set_backlight(pdev, ARGR(backlight));
1479                 break;
1480         }
1481
1482         case VIDIOCPWCGBACKLIGHT:
1483         {
1484                 ARG_DEF(int, backlight)
1485
1486                 ret = pwc_get_backlight(pdev, ARGA(backlight));
1487                 ARG_OUT(backlight)
1488                 break;
1489         }
1490
1491         case VIDIOCPWCSFLICKER:
1492         {
1493                 ARG_DEF(int, flicker)
1494
1495                 ARG_IN(flicker)
1496                 ret = pwc_set_flicker(pdev, ARGR(flicker));
1497                 break;
1498         }
1499
1500         case VIDIOCPWCGFLICKER:
1501         {
1502                 ARG_DEF(int, flicker)
1503
1504                 ret = pwc_get_flicker(pdev, ARGA(flicker));
1505                 ARG_OUT(flicker)
1506                 break;
1507         }
1508
1509         case VIDIOCPWCSDYNNOISE:
1510         {
1511                 ARG_DEF(int, dynnoise)
1512
1513                 ARG_IN(dynnoise)
1514                 ret = pwc_set_dynamic_noise(pdev, ARGR(dynnoise));
1515                 break;
1516         }
1517
1518         case VIDIOCPWCGDYNNOISE:
1519         {
1520                 ARG_DEF(int, dynnoise)
1521
1522                 ret = pwc_get_dynamic_noise(pdev, ARGA(dynnoise));
1523                 ARG_OUT(dynnoise);
1524                 break;
1525         }
1526
1527         case VIDIOCPWCGREALSIZE:
1528         {
1529                 ARG_DEF(struct pwc_imagesize, size)
1530
1531                 ARGR(size).width = pdev->image.x;
1532                 ARGR(size).height = pdev->image.y;
1533                 ARG_OUT(size)
1534                 break;
1535         }
1536
1537         case VIDIOCPWCMPTRESET:
1538         {
1539                 if (pdev->features & FEATURE_MOTOR_PANTILT)
1540                 {
1541                         ARG_DEF(int, flags)
1542
1543                         ARG_IN(flags)
1544                         ret = pwc_mpt_reset(pdev, ARGR(flags));
1545                 }
1546                 else
1547                 {
1548                         ret = -ENXIO;
1549                 }
1550                 break;
1551         }
1552
1553         case VIDIOCPWCMPTGRANGE:
1554         {
1555                 if (pdev->features & FEATURE_MOTOR_PANTILT)
1556                 {
1557                         ARG_DEF(struct pwc_mpt_range, range)
1558
1559                         ARGR(range) = pdev->angle_range;
1560                         ARG_OUT(range)
1561                 }
1562                 else
1563                 {
1564                         ret = -ENXIO;
1565                 }
1566                 break;
1567         }
1568
1569         case VIDIOCPWCMPTSANGLE:
1570         {
1571                 int new_pan, new_tilt;
1572
1573                 if (pdev->features & FEATURE_MOTOR_PANTILT)
1574                 {
1575                         ARG_DEF(struct pwc_mpt_angles, angles)
1576
1577                         ARG_IN(angles)
1578                         /* The camera can only set relative angles, so
1579                            do some calculations when getting an absolute angle .
1580                          */
1581                         if (ARGR(angles).absolute)
1582                         {
1583                                 new_pan  = ARGR(angles).pan;
1584                                 new_tilt = ARGR(angles).tilt;
1585                         }
1586                         else
1587                         {
1588                                 new_pan  = pdev->pan_angle  + ARGR(angles).pan;
1589                                 new_tilt = pdev->tilt_angle + ARGR(angles).tilt;
1590                         }
1591                         ret = pwc_mpt_set_angle(pdev, new_pan, new_tilt);
1592                 }
1593                 else
1594                 {
1595                         ret = -ENXIO;
1596                 }
1597                 break;
1598         }
1599
1600         case VIDIOCPWCMPTGANGLE:
1601         {
1602
1603                 if (pdev->features & FEATURE_MOTOR_PANTILT)
1604                 {
1605                         ARG_DEF(struct pwc_mpt_angles, angles)
1606
1607                         ARGR(angles).absolute = 1;
1608                         ARGR(angles).pan  = pdev->pan_angle;
1609                         ARGR(angles).tilt = pdev->tilt_angle;
1610                         ARG_OUT(angles)
1611                 }
1612                 else
1613                 {
1614                         ret = -ENXIO;
1615                 }
1616                 break;
1617         }
1618
1619         case VIDIOCPWCMPTSTATUS:
1620         {
1621                 if (pdev->features & FEATURE_MOTOR_PANTILT)
1622                 {
1623                         ARG_DEF(struct pwc_mpt_status, status)
1624
1625                         ret = pwc_mpt_get_status(pdev, ARGA(status));
1626                         ARG_OUT(status)
1627                 }
1628                 else
1629                 {
1630                         ret = -ENXIO;
1631                 }
1632                 break;
1633         }
1634
1635         case VIDIOCPWCGVIDCMD:
1636         {
1637                 ARG_DEF(struct pwc_video_command, vcmd);
1638
1639                 ARGR(vcmd).type = pdev->type;
1640                 ARGR(vcmd).release = pdev->release;
1641                 ARGR(vcmd).command_len = pdev->cmd_len;
1642                 memcpy(&ARGR(vcmd).command_buf, pdev->cmd_buf, pdev->cmd_len);
1643                 ARGR(vcmd).bandlength = pdev->vbandlength;
1644                 ARGR(vcmd).frame_size = pdev->frame_size;
1645                 ARG_OUT(vcmd)
1646                 break;
1647         }
1648         /*
1649         case VIDIOCPWCGVIDTABLE:
1650         {
1651                 ARG_DEF(struct pwc_table_init_buffer, table);
1652                 ARGR(table).len = pdev->cmd_len;
1653                 memcpy(&ARGR(table).buffer, pdev->decompress_data, pdev->decompressor->table_size);
1654                 ARG_OUT(table)
1655                 break;
1656         }
1657         */
1658
1659         default:
1660                 ret = -ENOIOCTLCMD;
1661                 break;
1662         }
1663
1664         if (ret > 0)
1665                 return 0;
1666         return ret;
1667 }
1668
1669
1670 /* vim: set cinoptions= formatoptions=croql cindent shiftwidth=8 tabstop=8: */