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      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-ioctl.h"
  47 #include "pwc-uncompress.h"
  48 #include "pwc-kiara.h"
  49 #include "pwc-timon.h"
  50
  51 /* Request types: video */
  52 #define SET_LUM_CTL                     0x01
  53 #define GET_LUM_CTL                     0x02
  54 #define SET_CHROM_CTL                   0x03
  55 #define GET_CHROM_CTL                   0x04
  56 #define SET_STATUS_CTL                  0x05
  57 #define GET_STATUS_CTL                  0x06
  58 #define SET_EP_STREAM_CTL               0x07
  59 #define GET_EP_STREAM_CTL               0x08
  60 #define SET_MPT_CTL                     0x0D
  61 #define GET_MPT_CTL                     0x0E
  62
  63 /* Selectors for the Luminance controls [GS]ET_LUM_CTL */
  64 #define AGC_MODE_FORMATTER                      0x2000
  65 #define PRESET_AGC_FORMATTER                    0x2100
  66 #define SHUTTER_MODE_FORMATTER                  0x2200
  67 #define PRESET_SHUTTER_FORMATTER                0x2300
  68 #define PRESET_CONTOUR_FORMATTER                0x2400
  69 #define AUTO_CONTOUR_FORMATTER                  0x2500
  70 #define BACK_LIGHT_COMPENSATION_FORMATTER       0x2600
  71 #define CONTRAST_FORMATTER                      0x2700
  72 #define DYNAMIC_NOISE_CONTROL_FORMATTER         0x2800
  73 #define FLICKERLESS_MODE_FORMATTER              0x2900
  74 #define AE_CONTROL_SPEED                        0x2A00
  75 #define BRIGHTNESS_FORMATTER                    0x2B00
  76 #define GAMMA_FORMATTER                         0x2C00
  77
  78 /* Selectors for the Chrominance controls [GS]ET_CHROM_CTL */
  79 #define WB_MODE_FORMATTER                       0x1000
  80 #define AWB_CONTROL_SPEED_FORMATTER             0x1100
  81 #define AWB_CONTROL_DELAY_FORMATTER             0x1200
  82 #define PRESET_MANUAL_RED_GAIN_FORMATTER        0x1300
  83 #define PRESET_MANUAL_BLUE_GAIN_FORMATTER       0x1400
  84 #define COLOUR_MODE_FORMATTER                   0x1500
  85 #define SATURATION_MODE_FORMATTER1              0x1600
  86 #define SATURATION_MODE_FORMATTER2              0x1700
  87
  88 /* Selectors for the Status controls [GS]ET_STATUS_CTL */
  89 #define SAVE_USER_DEFAULTS_FORMATTER            0x0200
  90 #define RESTORE_USER_DEFAULTS_FORMATTER         0x0300
  91 #define RESTORE_FACTORY_DEFAULTS_FORMATTER      0x0400
  92 #define READ_AGC_FORMATTER                      0x0500
  93 #define READ_SHUTTER_FORMATTER                  0x0600
  94 #define READ_RED_GAIN_FORMATTER                 0x0700
  95 #define READ_BLUE_GAIN_FORMATTER                0x0800
  96 #define SENSOR_TYPE_FORMATTER1                  0x0C00
  97 #define READ_RAW_Y_MEAN_FORMATTER               0x3100
  98 #define SET_POWER_SAVE_MODE_FORMATTER           0x3200
  99 #define MIRROR_IMAGE_FORMATTER                  0x3300
 100 #define LED_FORMATTER                           0x3400
 101 #define SENSOR_TYPE_FORMATTER2                  0x3700
 102
 103 /* Formatters for the Video Endpoint controls [GS]ET_EP_STREAM_CTL */
 104 #define VIDEO_OUTPUT_CONTROL_FORMATTER          0x0100
 105
 106 /* Formatters for the motorized pan & tilt [GS]ET_MPT_CTL */
 107 #define PT_RELATIVE_CONTROL_FORMATTER           0x01
 108 #define PT_RESET_CONTROL_FORMATTER              0x02
 109 #define PT_STATUS_FORMATTER                     0x03
 110
 111 static const char *size2name[PSZ_MAX] =
 112 {
 113         "subQCIF",
 114         "QSIF",
 115         "QCIF",
 116         "SIF",
 117         "CIF",
 118         "VGA",
 119 };
 120
 121 /********/
 122
 123 /* Entries for the Nala (645/646) camera; the Nala doesn't have compression
 124    preferences, so you either get compressed or non-compressed streams.
 125
 126    An alternate value of 0 means this mode is not available at all.
 127  */
 128
 129 struct Nala_table_entry {
 130         char alternate;                 /* USB alternate setting */
 131         int compressed;                 /* Compressed yes/no */
 132
 133         unsigned char mode[3];          /* precomputed mode table */
 134 };
 135
 136 static struct Nala_table_entry Nala_table[PSZ_MAX][8] =
 137 {
 138 #include "pwc-nala.h"
 139 };
 140
 141
 142 /****************************************************************************/
 143
 144
 145 #define SendControlMsg(request, value, buflen) \
 146         usb_control_msg(pdev->udev, usb_sndctrlpipe(pdev->udev, 0), \
 147                 request, \
 148                 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, \
 149                 value, \
 150                 pdev->vcinterface, \
 151                 &buf, buflen, 500)
 152
 153 #define RecvControlMsg(request, value, buflen) \
 154         usb_control_msg(pdev->udev, usb_rcvctrlpipe(pdev->udev, 0), \
 155                 request, \
 156                 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, \
 157                 value, \
 158                 pdev->vcinterface, \
 159                 &buf, buflen, 500)
 160
 161
 162 #if PWC_DEBUG
 163 void pwc_hexdump(void *p, int len)
 164 {
 165         int i;
 166         unsigned char *s;
 167         char buf[100], *d;
 168
 169         s = (unsigned char *)p;
 170         d = buf;
 171         *d = '\0';
 172         Debug("Doing hexdump @ %p, %d bytes.\n", p, len);
 173         for (i = 0; i < len; i++) {
 174                 d += sprintf(d, "%02X ", *s++);
 175                 if ((i & 0xF) == 0xF) {
 176                         Debug("%s\n", buf);
 177                         d = buf;
 178                         *d = '\0';
 179                 }
 180         }
 181         if ((i & 0xF) != 0)
 182                 Debug("%s\n", buf);
 183 }
 184 #endif
 185
 186 static inline int send_video_command(struct usb_device *udev, int index, void *buf, int buflen)
 187 {
 188         return usb_control_msg(udev,
 189                 usb_sndctrlpipe(udev, 0),
 190                 SET_EP_STREAM_CTL,
 191                 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 192                 VIDEO_OUTPUT_CONTROL_FORMATTER,
 193                 index,
 194                 buf, buflen, 1000);
 195 }
 196
 197
 198
 199 static inline int set_video_mode_Nala(struct pwc_device *pdev, int size, int frames)
 200 {
 201         unsigned char buf[3];
 202         int ret, fps;
 203         struct Nala_table_entry *pEntry;
 204         int frames2frames[31] =
 205         { /* closest match of framerate */
 206            0,  0,  0,  0,  4,  /*  0-4  */
 207            5,  5,  7,  7, 10,  /*  5-9  */
 208           10, 10, 12, 12, 15,  /* 10-14 */
 209           15, 15, 15, 20, 20,  /* 15-19 */
 210           20, 20, 20, 24, 24,  /* 20-24 */
 211           24, 24, 24, 24, 24,  /* 25-29 */
 212           24                   /* 30    */
 213         };
 214         int frames2table[31] =
 215         { 0, 0, 0, 0, 0, /*  0-4  */
 216           1, 1, 1, 2, 2, /*  5-9  */
 217           3, 3, 4, 4, 4, /* 10-14 */
 218           5, 5, 5, 5, 5, /* 15-19 */
 219           6, 6, 6, 6, 7, /* 20-24 */
 220           7, 7, 7, 7, 7, /* 25-29 */
 221           7              /* 30    */
 222         };
 223
 224         if (size < 0 || size > PSZ_CIF || frames < 4 || frames > 25)
 225                 return -EINVAL;
 226         frames = frames2frames[frames];
 227         fps = frames2table[frames];
 228         pEntry = &Nala_table[size][fps];
 229         if (pEntry->alternate == 0)
 230                 return -EINVAL;
 231
 232         if (pEntry->compressed)
 233                 return -ENOENT; /* Not supported. */
 234
 235         memcpy(buf, pEntry->mode, 3);
 236         ret = send_video_command(pdev->udev, pdev->vendpoint, buf, 3);
 237         if (ret < 0) {
 238                 Debug("Failed to send video command... %d\n", ret);
 239                 return ret;
 240         }
 241         if (pEntry->compressed && pdev->vpalette != VIDEO_PALETTE_RAW)
 242          {
 243            switch(pdev->type) {
 244              case 645:
 245              case 646:
 246 /*             pwc_dec1_init(pdev->type, pdev->release, buf, pdev->decompress_data); */
 247                break;
 248
 249              case 675:
 250              case 680:
 251              case 690:
 252              case 720:
 253              case 730:
 254              case 740:
 255              case 750:
 256 /*             pwc_dec23_init(pdev->type, pdev->release, buf, pdev->decompress_data); */
 257                break;
 258            }
 259         }
 260
 261         pdev->cmd_len = 3;
 262         memcpy(pdev->cmd_buf, buf, 3);
 263
 264         /* Set various parameters */
 265         pdev->vframes = frames;
 266         pdev->vsize = size;
 267         pdev->valternate = pEntry->alternate;
 268         pdev->image = pwc_image_sizes[size];
 269         pdev->frame_size = (pdev->image.x * pdev->image.y * 3) / 2;
 270         if (pEntry->compressed) {
 271                 if (pdev->release < 5) { /* 4 fold compression */
 272                         pdev->vbandlength = 528;
 273                         pdev->frame_size /= 4;
 274                 }
 275                 else {
 276                         pdev->vbandlength = 704;
 277                         pdev->frame_size /= 3;
 278                 }
 279         }
 280         else
 281                 pdev->vbandlength = 0;
 282         return 0;
 283 }
 284
 285
 286 static inline int set_video_mode_Timon(struct pwc_device *pdev, int size, int frames, int compression, int snapshot)
 287 {
 288         unsigned char buf[13];
 289         const struct Timon_table_entry *pChoose;
 290         int ret, fps;
 291
 292         if (size >= PSZ_MAX || frames < 5 || frames > 30 || compression < 0 || compression > 3)
 293                 return -EINVAL;
 294         if (size == PSZ_VGA && frames > 15)
 295                 return -EINVAL;
 296         fps = (frames / 5) - 1;
 297
 298         /* Find a supported framerate with progressively higher compression ratios
 299            if the preferred ratio is not available.
 300         */
 301         pChoose = NULL;
 302         while (compression <= 3) {
 303            pChoose = &Timon_table[size][fps][compression];
 304            if (pChoose->alternate != 0)
 305              break;
 306            compression++;
 307         }
 308         if (pChoose == NULL || pChoose->alternate == 0)
 309                 return -ENOENT; /* Not supported. */
 310
 311         memcpy(buf, pChoose->mode, 13);
 312         if (snapshot)
 313                 buf[0] |= 0x80;
 314         ret = send_video_command(pdev->udev, pdev->vendpoint, buf, 13);
 315         if (ret < 0)
 316                 return ret;
 317
 318 /*      if (pChoose->bandlength > 0 && pdev->vpalette != VIDEO_PALETTE_RAW)
 319            pwc_dec23_init(pdev->type, pdev->release, buf, pdev->decompress_data); */
 320
 321         pdev->cmd_len = 13;
 322         memcpy(pdev->cmd_buf, buf, 13);
 323
 324         /* Set various parameters */
 325         pdev->vframes = frames;
 326         pdev->vsize = size;
 327         pdev->vsnapshot = snapshot;
 328         pdev->valternate = pChoose->alternate;
 329         pdev->image = pwc_image_sizes[size];
 330         pdev->vbandlength = pChoose->bandlength;
 331         if (pChoose->bandlength > 0)
 332                 pdev->frame_size = (pChoose->bandlength * pdev->image.y) / 4;
 333         else
 334                 pdev->frame_size = (pdev->image.x * pdev->image.y * 12) / 8;
 335         return 0;
 336 }
 337
 338
 339 static inline int set_video_mode_Kiara(struct pwc_device *pdev, int size, int frames, int compression, int snapshot)
 340 {
 341         const struct Kiara_table_entry *pChoose = NULL;
 342         int fps, ret;
 343         unsigned char buf[12];
 344         struct Kiara_table_entry RawEntry = {6, 773, 1272, {0xAD, 0xF4, 0x10, 0x27, 0xB6, 0x24, 0x96, 0x02, 0x30, 0x05, 0x03, 0x80}};
 345
 346         if (size >= PSZ_MAX || frames < 5 || frames > 30 || compression < 0 || compression > 3)
 347                 return -EINVAL;
 348         if (size == PSZ_VGA && frames > 15)
 349                 return -EINVAL;
 350         fps = (frames / 5) - 1;
 351
 352         /* special case: VGA @ 5 fps and snapshot is raw bayer mode */
 353         if (size == PSZ_VGA && frames == 5 && snapshot)
 354         {
 355                 /* Only available in case the raw palette is selected or
 356                    we have the decompressor available. This mode is
 357                    only available in compressed form
 358                 */
 359                 if (pdev->vpalette == VIDEO_PALETTE_RAW)
 360                 {
 361                         Info("Choosing VGA/5 BAYER mode (%d).\n", pdev->vpalette);
 362                         pChoose = &RawEntry;
 363                 }
 364                 else
 365                 {
 366                         Info("VGA/5 BAYER mode _must_ have a decompressor available, or use RAW palette.\n");
 367                 }
 368         }
 369         else
 370         {
 371                 /* Find a supported framerate with progressively higher compression ratios
 372                    if the preferred ratio is not available.
 373                    Skip this step when using RAW modes.
 374                 */
 375                 while (compression <= 3) {
 376                         pChoose = &Kiara_table[size][fps][compression];
 377                         if (pChoose->alternate != 0)
 378                                 break;
 379                         compression++;
 380                 }
 381         }
 382         if (pChoose == NULL || pChoose->alternate == 0)
 383                 return -ENOENT; /* Not supported. */
 384
 385         Debug("Using alternate setting %d.\n", pChoose->alternate);
 386
 387         /* usb_control_msg won't take staticly allocated arrays as argument?? */
 388         memcpy(buf, pChoose->mode, 12);
 389         if (snapshot)
 390                 buf[0] |= 0x80;
 391
 392         /* Firmware bug: video endpoint is 5, but commands are sent to endpoint 4 */
 393         ret = send_video_command(pdev->udev, 4 /* pdev->vendpoint */, buf, 12);
 394         if (ret < 0)
 395                 return ret;
 396
 397 /*      if (pChoose->bandlength > 0 && pdev->vpalette != VIDEO_PALETTE_RAW)
 398           pwc_dec23_init(pdev->type, pdev->release, buf, pdev->decompress_data); */
 399
 400         pdev->cmd_len = 12;
 401         memcpy(pdev->cmd_buf, buf, 12);
 402         /* All set and go */
 403         pdev->vframes = frames;
 404         pdev->vsize = size;
 405         pdev->vsnapshot = snapshot;
 406         pdev->valternate = pChoose->alternate;
 407         pdev->image = pwc_image_sizes[size];
 408         pdev->vbandlength = pChoose->bandlength;
 409         if (pdev->vbandlength > 0)
 410                 pdev->frame_size = (pdev->vbandlength * pdev->image.y) / 4;
 411         else
 412                 pdev->frame_size = (pdev->image.x * pdev->image.y * 12) / 8;
 413         return 0;
 414 }
 415
 416
 417
 418 static void pwc_set_image_buffer_size(struct pwc_device *pdev)
 419 {
 420         int i, factor = 0, filler = 0;
 421
 422         /* for PALETTE_YUV420P */
 423         switch(pdev->vpalette)
 424         {
 425         case VIDEO_PALETTE_YUV420P:
 426                 factor = 6;
 427                 filler = 128;
 428                 break;
 429         case VIDEO_PALETTE_RAW:
 430                 factor = 6; /* can be uncompressed YUV420P */
 431                 filler = 0;
 432                 break;
 433         }
 434
 435         /* Set sizes in bytes */
 436         pdev->image.size = pdev->image.x * pdev->image.y * factor / 4;
 437         pdev->view.size  = pdev->view.x  * pdev->view.y  * factor / 4;
 438
 439         /* Align offset, or you'll get some very weird results in
 440            YUV420 mode... x must be multiple of 4 (to get the Y's in
 441            place), and y even (or you'll mixup U & V). This is less of a
 442            problem for YUV420P.
 443          */
 444         pdev->offset.x = ((pdev->view.x - pdev->image.x) / 2) & 0xFFFC;
 445         pdev->offset.y = ((pdev->view.y - pdev->image.y) / 2) & 0xFFFE;
 446
 447         /* Fill buffers with gray or black */
 448         for (i = 0; i < MAX_IMAGES; i++) {
 449                 if (pdev->image_ptr[i] != NULL)
 450                         memset(pdev->image_ptr[i], filler, pdev->view.size);
 451         }
 452 }
 453
 454
 455
 456 /**
 457    @pdev: device structure
 458    @width: viewport width
 459    @height: viewport height
 460    @frame: framerate, in fps
 461    @compression: preferred compression ratio
 462    @snapshot: snapshot mode or streaming
 463  */
 464 int pwc_set_video_mode(struct pwc_device *pdev, int width, int height, int frames, int compression, int snapshot)
 465 {
 466         int ret, size;
 467
 468         Trace(TRACE_FLOW, "set_video_mode(%dx%d @ %d, palette %d).\n", width, height, frames, pdev->vpalette);
 469         size = pwc_decode_size(pdev, width, height);
 470         if (size < 0) {
 471                 Debug("Could not find suitable size.\n");
 472                 return -ERANGE;
 473         }
 474         Debug("decode_size = %d.\n", size);
 475
 476         ret = -EINVAL;
 477         switch(pdev->type) {
 478         case 645:
 479         case 646:
 480                 ret = set_video_mode_Nala(pdev, size, frames);
 481                 break;
 482
 483         case 675:
 484         case 680:
 485         case 690:
 486                 ret = set_video_mode_Timon(pdev, size, frames, compression, snapshot);
 487                 break;
 488
 489         case 720:
 490         case 730:
 491         case 740:
 492         case 750:
 493                 ret = set_video_mode_Kiara(pdev, size, frames, compression, snapshot);
 494                 break;
 495         }
 496         if (ret < 0) {
 497                 if (ret == -ENOENT)
 498                         Info("Video mode %s@%d fps is only supported with the decompressor module (pwcx).\n", size2name[size], frames);
 499                 else {
 500                         Err("Failed to set video mode %s@%d fps; return code = %d\n", size2name[size], frames, ret);
 501                 }
 502                 return ret;
 503         }
 504         pdev->view.x = width;
 505         pdev->view.y = height;
 506         pdev->frame_total_size = pdev->frame_size + pdev->frame_header_size + pdev->frame_trailer_size;
 507         pwc_set_image_buffer_size(pdev);
 508         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);
 509         return 0;
 510 }
 511
 512
 513 /* BRIGHTNESS */
 514
 515 int pwc_get_brightness(struct pwc_device *pdev)
 516 {
 517         char buf;
 518         int ret;
 519
 520         ret = RecvControlMsg(GET_LUM_CTL, BRIGHTNESS_FORMATTER, 1);
 521         if (ret < 0)
 522                 return ret;
 523         return buf << 9;
 524 }
 525
 526 int pwc_set_brightness(struct pwc_device *pdev, int value)
 527 {
 528         char buf;
 529
 530         if (value < 0)
 531                 value = 0;
 532         if (value > 0xffff)
 533                 value = 0xffff;
 534         buf = (value >> 9) & 0x7f;
 535         return SendControlMsg(SET_LUM_CTL, BRIGHTNESS_FORMATTER, 1);
 536 }
 537
 538 /* CONTRAST */
 539
 540 int pwc_get_contrast(struct pwc_device *pdev)
 541 {
 542         char buf;
 543         int ret;
 544
 545         ret = RecvControlMsg(GET_LUM_CTL, CONTRAST_FORMATTER, 1);
 546         if (ret < 0)
 547                 return ret;
 548         return buf << 10;
 549 }
 550
 551 int pwc_set_contrast(struct pwc_device *pdev, int value)
 552 {
 553         char buf;
 554
 555         if (value < 0)
 556                 value = 0;
 557         if (value > 0xffff)
 558                 value = 0xffff;
 559         buf = (value >> 10) & 0x3f;
 560         return SendControlMsg(SET_LUM_CTL, CONTRAST_FORMATTER, 1);
 561 }
 562
 563 /* GAMMA */
 564
 565 int pwc_get_gamma(struct pwc_device *pdev)
 566 {
 567         char buf;
 568         int ret;
 569
 570         ret = RecvControlMsg(GET_LUM_CTL, GAMMA_FORMATTER, 1);
 571         if (ret < 0)
 572                 return ret;
 573         return buf << 11;
 574 }
 575
 576 int pwc_set_gamma(struct pwc_device *pdev, int value)
 577 {
 578         char buf;
 579
 580         if (value < 0)
 581                 value = 0;
 582         if (value > 0xffff)
 583                 value = 0xffff;
 584         buf = (value >> 11) & 0x1f;
 585         return SendControlMsg(SET_LUM_CTL, GAMMA_FORMATTER, 1);
 586 }
 587
 588
 589 /* SATURATION */
 590
 591 int pwc_get_saturation(struct pwc_device *pdev)
 592 {
 593         char buf;
 594         int ret;
 595
 596         if (pdev->type < 675)
 597                 return -1;
 598         ret = RecvControlMsg(GET_CHROM_CTL, pdev->type < 730 ? SATURATION_MODE_FORMATTER2 : SATURATION_MODE_FORMATTER1, 1);
 599         if (ret < 0)
 600                 return ret;
 601         return 32768 + buf * 327;
 602 }
 603
 604 int pwc_set_saturation(struct pwc_device *pdev, int value)
 605 {
 606         char buf;
 607
 608         if (pdev->type < 675)
 609                 return -EINVAL;
 610         if (value < 0)
 611                 value = 0;
 612         if (value > 0xffff)
 613                 value = 0xffff;
 614         /* saturation ranges from -100 to +100 */
 615         buf = (value - 32768) / 327;
 616         return SendControlMsg(SET_CHROM_CTL, pdev->type < 730 ? SATURATION_MODE_FORMATTER2 : SATURATION_MODE_FORMATTER1, 1);
 617 }
 618
 619 /* AGC */
 620
 621 static inline int pwc_set_agc(struct pwc_device *pdev, int mode, int value)
 622 {
 623         char buf;
 624         int ret;
 625
 626         if (mode)
 627                 buf = 0x0; /* auto */
 628         else
 629                 buf = 0xff; /* fixed */
 630
 631         ret = SendControlMsg(SET_LUM_CTL, AGC_MODE_FORMATTER, 1);
 632
 633         if (!mode && ret >= 0) {
 634                 if (value < 0)
 635                         value = 0;
 636                 if (value > 0xffff)
 637                         value = 0xffff;
 638                 buf = (value >> 10) & 0x3F;
 639                 ret = SendControlMsg(SET_LUM_CTL, PRESET_AGC_FORMATTER, 1);
 640         }
 641         if (ret < 0)
 642                 return ret;
 643         return 0;
 644 }
 645
 646 static inline int pwc_get_agc(struct pwc_device *pdev, int *value)
 647 {
 648         unsigned char buf;
 649         int ret;
 650
 651         ret = RecvControlMsg(GET_LUM_CTL, AGC_MODE_FORMATTER, 1);
 652         if (ret < 0)
 653                 return ret;
 654
 655         if (buf != 0) { /* fixed */
 656                 ret = RecvControlMsg(GET_LUM_CTL, PRESET_AGC_FORMATTER, 1);
 657                 if (ret < 0)
 658                         return ret;
 659                 if (buf > 0x3F)
 660                         buf = 0x3F;
 661                 *value = (buf << 10);
 662         }
 663         else { /* auto */
 664                 ret = RecvControlMsg(GET_STATUS_CTL, READ_AGC_FORMATTER, 1);
 665                 if (ret < 0)
 666                         return ret;
 667                 /* Gah... this value ranges from 0x00 ... 0x9F */
 668                 if (buf > 0x9F)
 669                         buf = 0x9F;
 670                 *value = -(48 + buf * 409);
 671         }
 672
 673         return 0;
 674 }
 675
 676 static inline int pwc_set_shutter_speed(struct pwc_device *pdev, int mode, int value)
 677 {
 678         char buf[2];
 679         int speed, ret;
 680
 681
 682         if (mode)
 683                 buf[0] = 0x0;   /* auto */
 684         else
 685                 buf[0] = 0xff; /* fixed */
 686
 687         ret = SendControlMsg(SET_LUM_CTL, SHUTTER_MODE_FORMATTER, 1);
 688
 689         if (!mode && ret >= 0) {
 690                 if (value < 0)
 691                         value = 0;
 692                 if (value > 0xffff)
 693                         value = 0xffff;
 694                 switch(pdev->type) {
 695                 case 675:
 696                 case 680:
 697                 case 690:
 698                         /* speed ranges from 0x0 to 0x290 (656) */
 699                         speed = (value / 100);
 700                         buf[1] = speed >> 8;
 701                         buf[0] = speed & 0xff;
 702                         break;
 703                 case 720:
 704                 case 730:
 705                 case 740:
 706                 case 750:
 707                         /* speed seems to range from 0x0 to 0xff */
 708                         buf[1] = 0;
 709                         buf[0] = value >> 8;
 710                         break;
 711                 }
 712
 713                 ret = SendControlMsg(SET_LUM_CTL, PRESET_SHUTTER_FORMATTER, 2);
 714         }
 715         return ret;
 716 }
 717
 718
 719 /* POWER */
 720
 721 int pwc_camera_power(struct pwc_device *pdev, int power)
 722 {
 723         char buf;
 724
 725         if (pdev->type < 675 || (pdev->type < 730 && pdev->release < 6))
 726                 return 0;       /* Not supported by Nala or Timon < release 6 */
 727
 728         if (power)
 729                 buf = 0x00; /* active */
 730         else
 731                 buf = 0xFF; /* power save */
 732         return SendControlMsg(SET_STATUS_CTL, SET_POWER_SAVE_MODE_FORMATTER, 1);
 733 }
 734
 735
 736
 737 /* private calls */
 738
 739 static inline int pwc_restore_user(struct pwc_device *pdev)
 740 {
 741         char buf; /* dummy */
 742         return SendControlMsg(SET_STATUS_CTL, RESTORE_USER_DEFAULTS_FORMATTER, 0);
 743 }
 744
 745 static inline int pwc_save_user(struct pwc_device *pdev)
 746 {
 747         char buf; /* dummy */
 748         return SendControlMsg(SET_STATUS_CTL, SAVE_USER_DEFAULTS_FORMATTER, 0);
 749 }
 750
 751 static inline int pwc_restore_factory(struct pwc_device *pdev)
 752 {
 753         char buf; /* dummy */
 754         return SendControlMsg(SET_STATUS_CTL, RESTORE_FACTORY_DEFAULTS_FORMATTER, 0);
 755 }
 756
 757  /* ************************************************* */
 758  /* Patch by Alvarado: (not in the original version   */
 759
 760  /*
 761   * the camera recognizes modes from 0 to 4:
 762   *
 763   * 00: indoor (incandescant lighting)
 764   * 01: outdoor (sunlight)
 765   * 02: fluorescent lighting
 766   * 03: manual
 767   * 04: auto
 768   */
 769 static inline int pwc_set_awb(struct pwc_device *pdev, int mode)
 770 {
 771         char buf;
 772         int ret;
 773
 774         if (mode < 0)
 775             mode = 0;
 776
 777         if (mode > 4)
 778             mode = 4;
 779
 780         buf = mode & 0x07; /* just the lowest three bits */
 781
 782         ret = SendControlMsg(SET_CHROM_CTL, WB_MODE_FORMATTER, 1);
 783
 784         if (ret < 0)
 785                 return ret;
 786         return 0;
 787 }
 788
 789 static inline int pwc_get_awb(struct pwc_device *pdev)
 790 {
 791         unsigned char buf;
 792         int ret;
 793
 794         ret = RecvControlMsg(GET_CHROM_CTL, WB_MODE_FORMATTER, 1);
 795
 796         if (ret < 0)
 797                 return ret;
 798         return buf;
 799 }
 800
 801 static inline int pwc_set_red_gain(struct pwc_device *pdev, int value)
 802 {
 803         unsigned char buf;
 804
 805         if (value < 0)
 806                 value = 0;
 807         if (value > 0xffff)
 808                 value = 0xffff;
 809         /* only the msb is considered */
 810         buf = value >> 8;
 811         return SendControlMsg(SET_CHROM_CTL, PRESET_MANUAL_RED_GAIN_FORMATTER, 1);
 812 }
 813
 814 static inline int pwc_get_red_gain(struct pwc_device *pdev, int *value)
 815 {
 816         unsigned char buf;
 817         int ret;
 818
 819         ret = RecvControlMsg(GET_CHROM_CTL, PRESET_MANUAL_RED_GAIN_FORMATTER, 1);
 820         if (ret < 0)
 821             return ret;
 822         *value = buf << 8;
 823         return 0;
 824 }
 825
 826
 827 static inline int pwc_set_blue_gain(struct pwc_device *pdev, int value)
 828 {
 829         unsigned char buf;
 830
 831         if (value < 0)
 832                 value = 0;
 833         if (value > 0xffff)
 834                 value = 0xffff;
 835         /* only the msb is considered */
 836         buf = value >> 8;
 837         return SendControlMsg(SET_CHROM_CTL, PRESET_MANUAL_BLUE_GAIN_FORMATTER, 1);
 838 }
 839
 840 static inline int pwc_get_blue_gain(struct pwc_device *pdev, int *value)
 841 {
 842         unsigned char buf;
 843         int ret;
 844
 845         ret = RecvControlMsg(GET_CHROM_CTL, PRESET_MANUAL_BLUE_GAIN_FORMATTER, 1);
 846         if (ret < 0)
 847             return ret;
 848         *value = buf << 8;
 849         return 0;
 850 }
 851
 852
 853 /* The following two functions are different, since they only read the
 854    internal red/blue gains, which may be different from the manual
 855    gains set or read above.
 856  */
 857 static inline int pwc_read_red_gain(struct pwc_device *pdev, int *value)
 858 {
 859         unsigned char buf;
 860         int ret;
 861
 862         ret = RecvControlMsg(GET_STATUS_CTL, READ_RED_GAIN_FORMATTER, 1);
 863         if (ret < 0)
 864                 return ret;
 865         *value = buf << 8;
 866         return 0;
 867 }
 868
 869 static inline int pwc_read_blue_gain(struct pwc_device *pdev, int *value)
 870 {
 871         unsigned char buf;
 872         int ret;
 873
 874         ret = RecvControlMsg(GET_STATUS_CTL, READ_BLUE_GAIN_FORMATTER, 1);
 875         if (ret < 0)
 876                 return ret;
 877         *value = buf << 8;
 878         return 0;
 879 }
 880
 881
 882 static inline int pwc_set_wb_speed(struct pwc_device *pdev, int speed)
 883 {
 884         unsigned char buf;
 885
 886         /* useful range is 0x01..0x20 */
 887         buf = speed / 0x7f0;
 888         return SendControlMsg(SET_CHROM_CTL, AWB_CONTROL_SPEED_FORMATTER, 1);
 889 }
 890
 891 static inline int pwc_get_wb_speed(struct pwc_device *pdev, int *value)
 892 {
 893         unsigned char buf;
 894         int ret;
 895
 896         ret = RecvControlMsg(GET_CHROM_CTL, AWB_CONTROL_SPEED_FORMATTER, 1);
 897         if (ret < 0)
 898                 return ret;
 899         *value = buf * 0x7f0;
 900         return 0;
 901 }
 902
 903
 904 static inline int pwc_set_wb_delay(struct pwc_device *pdev, int delay)
 905 {
 906         unsigned char buf;
 907
 908         /* useful range is 0x01..0x3F */
 909         buf = (delay >> 10);
 910         return SendControlMsg(SET_CHROM_CTL, AWB_CONTROL_DELAY_FORMATTER, 1);
 911 }
 912
 913 static inline int pwc_get_wb_delay(struct pwc_device *pdev, int *value)
 914 {
 915         unsigned char buf;
 916         int ret;
 917
 918         ret = RecvControlMsg(GET_CHROM_CTL, AWB_CONTROL_DELAY_FORMATTER, 1);
 919         if (ret < 0)
 920                 return ret;
 921         *value = buf << 10;
 922         return 0;
 923 }
 924
 925
 926 int pwc_set_leds(struct pwc_device *pdev, int on_value, int off_value)
 927 {
 928         unsigned char buf[2];
 929
 930         if (pdev->type < 730)
 931                 return 0;
 932         on_value /= 100;
 933         off_value /= 100;
 934         if (on_value < 0)
 935                 on_value = 0;
 936         if (on_value > 0xff)
 937                 on_value = 0xff;
 938         if (off_value < 0)
 939                 off_value = 0;
 940         if (off_value > 0xff)
 941                 off_value = 0xff;
 942
 943         buf[0] = on_value;
 944         buf[1] = off_value;
 945
 946         return SendControlMsg(SET_STATUS_CTL, LED_FORMATTER, 2);
 947 }
 948
 949 static int pwc_get_leds(struct pwc_device *pdev, int *on_value, int *off_value)
 950 {
 951         unsigned char buf[2];
 952         int ret;
 953
 954         if (pdev->type < 730) {
 955                 *on_value = -1;
 956                 *off_value = -1;
 957                 return 0;
 958         }
 959
 960         ret = RecvControlMsg(GET_STATUS_CTL, LED_FORMATTER, 2);
 961         if (ret < 0)
 962                 return ret;
 963         *on_value = buf[0] * 100;
 964         *off_value = buf[1] * 100;
 965         return 0;
 966 }
 967
 968 static inline int pwc_set_contour(struct pwc_device *pdev, int contour)
 969 {
 970         unsigned char buf;
 971         int ret;
 972
 973         if (contour < 0)
 974                 buf = 0xff; /* auto contour on */
 975         else
 976                 buf = 0x0; /* auto contour off */
 977         ret = SendControlMsg(SET_LUM_CTL, AUTO_CONTOUR_FORMATTER, 1);
 978         if (ret < 0)
 979                 return ret;
 980
 981         if (contour < 0)
 982                 return 0;
 983         if (contour > 0xffff)
 984                 contour = 0xffff;
 985
 986         buf = (contour >> 10); /* contour preset is [0..3f] */
 987         ret = SendControlMsg(SET_LUM_CTL, PRESET_CONTOUR_FORMATTER, 1);
 988         if (ret < 0)
 989                 return ret;
 990         return 0;
 991 }
 992
 993 static inline int pwc_get_contour(struct pwc_device *pdev, int *contour)
 994 {
 995         unsigned char buf;
 996         int ret;
 997
 998         ret = RecvControlMsg(GET_LUM_CTL, AUTO_CONTOUR_FORMATTER, 1);
 999         if (ret < 0)
1000                 return ret;
1001
1002         if (buf == 0) {
1003                 /* auto mode off, query current preset value */
1004                 ret = RecvControlMsg(GET_LUM_CTL, PRESET_CONTOUR_FORMATTER, 1);
1005                 if (ret < 0)
1006                         return ret;
1007                 *contour = buf << 10;
1008         }
1009         else
1010                 *contour = -1;
1011         return 0;
1012 }
1013
1014
1015 static inline int pwc_set_backlight(struct pwc_device *pdev, int backlight)
1016 {
1017         unsigned char buf;
1018
1019         if (backlight)
1020                 buf = 0xff;
1021         else
1022                 buf = 0x0;
1023         return SendControlMsg(SET_LUM_CTL, BACK_LIGHT_COMPENSATION_FORMATTER, 1);
1024 }
1025
1026 static inline int pwc_get_backlight(struct pwc_device *pdev, int *backlight)
1027 {
1028         int ret;
1029         unsigned char buf;
1030
1031         ret = RecvControlMsg(GET_LUM_CTL, BACK_LIGHT_COMPENSATION_FORMATTER, 1);
1032         if (ret < 0)
1033                 return ret;
1034         *backlight = buf;
1035         return 0;
1036 }
1037
1038
1039 static inline int pwc_set_flicker(struct pwc_device *pdev, int flicker)
1040 {
1041         unsigned char buf;
1042
1043         if (flicker)
1044                 buf = 0xff;
1045         else
1046                 buf = 0x0;
1047         return SendControlMsg(SET_LUM_CTL, FLICKERLESS_MODE_FORMATTER, 1);
1048 }
1049
1050 static inline int pwc_get_flicker(struct pwc_device *pdev, int *flicker)
1051 {
1052         int ret;
1053         unsigned char buf;
1054
1055         ret = RecvControlMsg(GET_LUM_CTL, FLICKERLESS_MODE_FORMATTER, 1);
1056         if (ret < 0)
1057                 return ret;
1058         *flicker = buf;
1059         return 0;
1060 }
1061
1062
1063 static inline int pwc_set_dynamic_noise(struct pwc_device *pdev, int noise)
1064 {
1065         unsigned char buf;
1066
1067         if (noise < 0)
1068                 noise = 0;
1069         if (noise > 3)
1070                 noise = 3;
1071         buf = noise;
1072         return SendControlMsg(SET_LUM_CTL, DYNAMIC_NOISE_CONTROL_FORMATTER, 1);
1073 }
1074
1075 static inline int pwc_get_dynamic_noise(struct pwc_device *pdev, int *noise)
1076 {
1077         int ret;
1078         unsigned char buf;
1079
1080         ret = RecvControlMsg(GET_LUM_CTL, DYNAMIC_NOISE_CONTROL_FORMATTER, 1);
1081         if (ret < 0)
1082                 return ret;
1083         *noise = buf;
1084         return 0;
1085 }
1086
1087 static int pwc_mpt_reset(struct pwc_device *pdev, int flags)
1088 {
1089         unsigned char buf;
1090
1091         buf = flags & 0x03; // only lower two bits are currently used
1092         return SendControlMsg(SET_MPT_CTL, PT_RESET_CONTROL_FORMATTER, 1);
1093 }
1094
1095 static inline int pwc_mpt_set_angle(struct pwc_device *pdev, int pan, int tilt)
1096 {
1097         unsigned char buf[4];
1098
1099         /* set new relative angle; angles are expressed in degrees * 100,
1100            but cam as .5 degree resolution, hence divide by 200. Also
1101            the angle must be multiplied by 64 before it's send to
1102            the cam (??)
1103          */
1104         pan  =  64 * pan  / 100;
1105         tilt = -64 * tilt / 100; /* positive tilt is down, which is not what the user would expect */
1106         buf[0] = pan & 0xFF;
1107         buf[1] = (pan >> 8) & 0xFF;
1108         buf[2] = tilt & 0xFF;
1109         buf[3] = (tilt >> 8) & 0xFF;
1110         return SendControlMsg(SET_MPT_CTL, PT_RELATIVE_CONTROL_FORMATTER, 4);
1111 }
1112
1113 static inline int pwc_mpt_get_status(struct pwc_device *pdev, struct pwc_mpt_status *status)
1114 {
1115         int ret;
1116         unsigned char buf[5];
1117
1118         ret = RecvControlMsg(GET_MPT_CTL, PT_STATUS_FORMATTER, 5);
1119         if (ret < 0)
1120                 return ret;
1121         status->status = buf[0] & 0x7; // 3 bits are used for reporting
1122         status->time_pan = (buf[1] << 8) + buf[2];
1123         status->time_tilt = (buf[3] << 8) + buf[4];
1124         return 0;
1125 }
1126
1127
1128 int pwc_get_cmos_sensor(struct pwc_device *pdev, int *sensor)
1129 {
1130         unsigned char buf;
1131         int ret = -1, request;
1132
1133         if (pdev->type < 675)
1134                 request = SENSOR_TYPE_FORMATTER1;
1135         else if (pdev->type < 730)
1136                 return -1; /* The Vesta series doesn't have this call */
1137         else
1138                 request = SENSOR_TYPE_FORMATTER2;
1139
1140         ret = RecvControlMsg(GET_STATUS_CTL, request, 1);
1141         if (ret < 0)
1142                 return ret;
1143         if (pdev->type < 675)
1144                 *sensor = buf | 0x100;
1145         else
1146                 *sensor = buf;
1147         return 0;
1148 }
1149
1150
1151  /* End of Add-Ons                                    */
1152  /* ************************************************* */
1153
1154
1155 int pwc_ioctl(struct pwc_device *pdev, unsigned int cmd, void *arg)
1156 {
1157         int ret = 0;
1158
1159         switch(cmd) {
1160         case VIDIOCPWCRUSER:
1161         {
1162                 if (pwc_restore_user(pdev))
1163                         ret = -EINVAL;
1164                 break;
1165         }
1166
1167         case VIDIOCPWCSUSER:
1168         {
1169                 if (pwc_save_user(pdev))
1170                         ret = -EINVAL;
1171                 break;
1172         }
1173
1174         case VIDIOCPWCFACTORY:
1175         {
1176                 if (pwc_restore_factory(pdev))
1177                         ret = -EINVAL;
1178                 break;
1179         }
1180
1181         case VIDIOCPWCSCQUAL:
1182         {
1183                 int *qual = arg;
1184
1185                 if (*qual < 0 || *qual > 3)
1186                         ret = -EINVAL;
1187                 else
1188                         ret = pwc_try_video_mode(pdev, pdev->view.x, pdev->view.y, pdev->vframes, *qual, pdev->vsnapshot);
1189                 if (ret >= 0)
1190                         pdev->vcompression = *qual;
1191                 break;
1192         }
1193
1194         case VIDIOCPWCGCQUAL:
1195         {
1196                 int *qual = arg;
1197                 *qual = pdev->vcompression;
1198                 break;
1199         }
1200
1201         case VIDIOCPWCPROBE:
1202         {
1203                 struct pwc_probe *probe = arg;
1204                 strcpy(probe->name, pdev->vdev->name);
1205                 probe->type = pdev->type;
1206                 break;
1207         }
1208
1209         case VIDIOCPWCGSERIAL:
1210         {
1211                 struct pwc_serial *serial = arg;
1212                 strcpy(serial->serial, pdev->serial);
1213                 break;
1214         }
1215
1216         case VIDIOCPWCSAGC:
1217         {
1218                 int *agc = arg;
1219                 if (pwc_set_agc(pdev, *agc < 0 ? 1 : 0, *agc))
1220                         ret = -EINVAL;
1221                 break;
1222         }
1223
1224         case VIDIOCPWCGAGC:
1225         {
1226                 int *agc = arg;
1227
1228                 if (pwc_get_agc(pdev, agc))
1229                         ret = -EINVAL;
1230                 break;
1231         }
1232
1233         case VIDIOCPWCSSHUTTER:
1234         {
1235                 int *shutter_speed = arg;
1236                 ret = pwc_set_shutter_speed(pdev, *shutter_speed < 0 ? 1 : 0, *shutter_speed);
1237                 break;
1238         }
1239
1240         case VIDIOCPWCSAWB:
1241         {
1242                 struct pwc_whitebalance *wb = arg;
1243
1244                 ret = pwc_set_awb(pdev, wb->mode);
1245                 if (ret >= 0 && wb->mode == PWC_WB_MANUAL) {
1246                         pwc_set_red_gain(pdev, wb->manual_red);
1247                         pwc_set_blue_gain(pdev, wb->manual_blue);
1248                 }
1249                 break;
1250         }
1251
1252         case VIDIOCPWCGAWB:
1253         {
1254                 struct pwc_whitebalance *wb = arg;
1255
1256                 memset(wb, 0, sizeof(struct pwc_whitebalance));
1257                 wb->mode = pwc_get_awb(pdev);
1258                 if (wb->mode < 0)
1259                         ret = -EINVAL;
1260                 else {
1261                         if (wb->mode == PWC_WB_MANUAL) {
1262                                 ret = pwc_get_red_gain(pdev, &wb->manual_red);
1263                                 if (ret < 0)
1264                                         break;
1265                                 ret = pwc_get_blue_gain(pdev, &wb->manual_blue);
1266                                 if (ret < 0)
1267                                         break;
1268                         }
1269                         if (wb->mode == PWC_WB_AUTO) {
1270                                 ret = pwc_read_red_gain(pdev, &wb->read_red);
1271                                 if (ret < 0)
1272                                         break;
1273                                 ret = pwc_read_blue_gain(pdev, &wb->read_blue);
1274                                 if (ret < 0)
1275                                         break;
1276                         }
1277                 }
1278                 break;
1279         }
1280
1281         case VIDIOCPWCSAWBSPEED:
1282         {
1283                 struct pwc_wb_speed *wbs = arg;
1284
1285                 if (wbs->control_speed > 0) {
1286                         ret = pwc_set_wb_speed(pdev, wbs->control_speed);
1287                 }
1288                 if (wbs->control_delay > 0) {
1289                         ret = pwc_set_wb_delay(pdev, wbs->control_delay);
1290                 }
1291                 break;
1292         }
1293
1294         case VIDIOCPWCGAWBSPEED:
1295         {
1296                 struct pwc_wb_speed *wbs = arg;
1297
1298                 ret = pwc_get_wb_speed(pdev, &wbs->control_speed);
1299                 if (ret < 0)
1300                         break;
1301                 ret = pwc_get_wb_delay(pdev, &wbs->control_delay);
1302                 if (ret < 0)
1303                         break;
1304                 break;
1305         }
1306
1307         case VIDIOCPWCSLED:
1308         {
1309                 struct pwc_leds *leds = arg;
1310                 ret = pwc_set_leds(pdev, leds->led_on, leds->led_off);
1311                 break;
1312         }
1313
1314
1315         case VIDIOCPWCGLED:
1316         {
1317                 struct pwc_leds *leds = arg;
1318                 ret = pwc_get_leds(pdev, &leds->led_on, &leds->led_off);
1319                 break;
1320         }
1321
1322         case VIDIOCPWCSCONTOUR:
1323         {
1324                 int *contour = arg;
1325                 ret = pwc_set_contour(pdev, *contour);
1326                 break;
1327         }
1328
1329         case VIDIOCPWCGCONTOUR:
1330         {
1331                 int *contour = arg;
1332                 ret = pwc_get_contour(pdev, contour);
1333                 break;
1334         }
1335
1336         case VIDIOCPWCSBACKLIGHT:
1337         {
1338                 int *backlight = arg;
1339                 ret = pwc_set_backlight(pdev, *backlight);
1340                 break;
1341         }
1342
1343         case VIDIOCPWCGBACKLIGHT:
1344         {
1345                 int *backlight = arg;
1346                 ret = pwc_get_backlight(pdev, backlight);
1347                 break;
1348         }
1349
1350         case VIDIOCPWCSFLICKER:
1351         {
1352                 int *flicker = arg;
1353                 ret = pwc_set_flicker(pdev, *flicker);
1354                 break;
1355         }
1356
1357         case VIDIOCPWCGFLICKER:
1358         {
1359                 int *flicker = arg;
1360                 ret = pwc_get_flicker(pdev, flicker);
1361                 break;
1362         }
1363
1364         case VIDIOCPWCSDYNNOISE:
1365         {
1366                 int *dynnoise = arg;
1367                 ret = pwc_set_dynamic_noise(pdev, *dynnoise);
1368                 break;
1369         }
1370
1371         case VIDIOCPWCGDYNNOISE:
1372         {
1373                 int *dynnoise = arg;
1374                 ret = pwc_get_dynamic_noise(pdev, dynnoise);
1375                 break;
1376         }
1377
1378         case VIDIOCPWCGREALSIZE:
1379         {
1380                 struct pwc_imagesize *size = arg;
1381                 size->width = pdev->image.x;
1382                 size->height = pdev->image.y;
1383                 break;
1384         }
1385
1386         case VIDIOCPWCMPTRESET:
1387         {
1388                 if (pdev->features & FEATURE_MOTOR_PANTILT)
1389                 {
1390                         int *flags = arg;
1391
1392                         ret = pwc_mpt_reset(pdev, *flags);
1393                         if (ret >= 0)
1394                         {
1395                                 pdev->pan_angle = 0;
1396                                 pdev->tilt_angle = 0;
1397                         }
1398                 }
1399                 else
1400                 {
1401                         ret = -ENXIO;
1402                 }
1403                 break;
1404         }
1405
1406         case VIDIOCPWCMPTGRANGE:
1407         {
1408                 if (pdev->features & FEATURE_MOTOR_PANTILT)
1409                 {
1410                         struct pwc_mpt_range *range = arg;
1411                         *range = pdev->angle_range;
1412                 }
1413                 else
1414                 {
1415                         ret = -ENXIO;
1416                 }
1417                 break;
1418         }
1419
1420         case VIDIOCPWCMPTSANGLE:
1421         {
1422                 int new_pan, new_tilt;
1423
1424                 if (pdev->features & FEATURE_MOTOR_PANTILT)
1425                 {
1426                         struct pwc_mpt_angles *angles = arg;
1427                         /* The camera can only set relative angles, so
1428                            do some calculations when getting an absolute angle .
1429                          */
1430                         if (angles->absolute)
1431                         {
1432                                 new_pan  = angles->pan;
1433                                 new_tilt = angles->tilt;
1434                         }
1435                         else
1436                         {
1437                                 new_pan  = pdev->pan_angle  + angles->pan;
1438                                 new_tilt = pdev->tilt_angle + angles->tilt;
1439                         }
1440                         /* check absolute ranges */
1441                         if (new_pan  < pdev->angle_range.pan_min  ||
1442                             new_pan  > pdev->angle_range.pan_max  ||
1443                             new_tilt < pdev->angle_range.tilt_min ||
1444                             new_tilt > pdev->angle_range.tilt_max)
1445                         {
1446                                 ret = -ERANGE;
1447                         }
1448                         else
1449                         {
1450                                 /* go to relative range, check again */
1451                                 new_pan  -= pdev->pan_angle;
1452                                 new_tilt -= pdev->tilt_angle;
1453                                 /* angles are specified in degrees * 100, thus the limit = 36000 */
1454                                 if (new_pan < -36000 || new_pan > 36000 || new_tilt < -36000 || new_tilt > 36000)
1455                                         ret = -ERANGE;
1456                         }
1457                         if (ret == 0) /* no errors so far */
1458                         {
1459                                 ret = pwc_mpt_set_angle(pdev, new_pan, new_tilt);
1460                                 if (ret >= 0)
1461                                 {
1462                                         pdev->pan_angle  += new_pan;
1463                                         pdev->tilt_angle += new_tilt;
1464                                 }
1465                                 if (ret == -EPIPE) /* stall -> out of range */
1466                                         ret = -ERANGE;
1467                         }
1468                 }
1469                 else
1470                 {
1471                         ret = -ENXIO;
1472                 }
1473                 break;
1474         }
1475
1476         case VIDIOCPWCMPTGANGLE:
1477         {
1478
1479                 if (pdev->features & FEATURE_MOTOR_PANTILT)
1480                 {
1481                         struct pwc_mpt_angles *angles = arg;
1482
1483                         angles->absolute = 1;
1484                         angles->pan  = pdev->pan_angle;
1485                         angles->tilt = pdev->tilt_angle;
1486                 }
1487                 else
1488                 {
1489                         ret = -ENXIO;
1490                 }
1491                 break;
1492         }
1493
1494         case VIDIOCPWCMPTSTATUS:
1495         {
1496                 if (pdev->features & FEATURE_MOTOR_PANTILT)
1497                 {
1498                         struct pwc_mpt_status *status = arg;
1499                         ret = pwc_mpt_get_status(pdev, status);
1500                 }
1501                 else
1502                 {
1503                         ret = -ENXIO;
1504                 }
1505                 break;
1506         }
1507
1508         case VIDIOCPWCGVIDCMD:
1509         {
1510                 struct pwc_video_command *cmd = arg;
1511
1512                 cmd->type = pdev->type;
1513                 cmd->release = pdev->release;
1514                 cmd->command_len = pdev->cmd_len;
1515                 memcpy(&cmd->command_buf, pdev->cmd_buf, pdev->cmd_len);
1516                 cmd->bandlength = pdev->vbandlength;
1517                 cmd->frame_size = pdev->frame_size;
1518                 break;
1519         }
1520        /*
1521         case VIDIOCPWCGVIDTABLE:
1522         {
1523                 struct pwc_table_init_buffer *table = arg;
1524                 table->len = pdev->cmd_len;
1525                 memcpy(&table->buffer, pdev->decompress_data, pdev->decompressor->table_size);
1526                 break;
1527         }
1528         */
1529
1530         default:
1531                 ret = -ENOIOCTLCMD;
1532                 break;
1533         }
1534
1535         if (ret > 0)
1536                 return 0;
1537         return ret;
1538 }
1539
1540
1541