drivers/usb/media/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 #include <linux/version.h>
  45
  46 #include "pwc.h"
  47 #include "pwc-ioctl.h"
  48 #include "pwc-uncompress.h"
  49 #include "pwc-kiara.h"
  50 #include "pwc-timon.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 SET_MPT_CTL                     0x0D
  62 #define GET_MPT_CTL                     0x0E
  63
  64 /* Selectors for the Luminance controls [GS]ET_LUM_CTL */
  65 #define AGC_MODE_FORMATTER                      0x2000
  66 #define PRESET_AGC_FORMATTER                    0x2100
  67 #define SHUTTER_MODE_FORMATTER                  0x2200
  68 #define PRESET_SHUTTER_FORMATTER                0x2300
  69 #define PRESET_CONTOUR_FORMATTER                0x2400
  70 #define AUTO_CONTOUR_FORMATTER                  0x2500
  71 #define BACK_LIGHT_COMPENSATION_FORMATTER       0x2600
  72 #define CONTRAST_FORMATTER                      0x2700
  73 #define DYNAMIC_NOISE_CONTROL_FORMATTER         0x2800
  74 #define FLICKERLESS_MODE_FORMATTER              0x2900
  75 #define AE_CONTROL_SPEED                        0x2A00
  76 #define BRIGHTNESS_FORMATTER                    0x2B00
  77 #define GAMMA_FORMATTER                         0x2C00
  78
  79 /* Selectors for the Chrominance controls [GS]ET_CHROM_CTL */
  80 #define WB_MODE_FORMATTER                       0x1000
  81 #define AWB_CONTROL_SPEED_FORMATTER             0x1100
  82 #define AWB_CONTROL_DELAY_FORMATTER             0x1200
  83 #define PRESET_MANUAL_RED_GAIN_FORMATTER        0x1300
  84 #define PRESET_MANUAL_BLUE_GAIN_FORMATTER       0x1400
  85 #define COLOUR_MODE_FORMATTER                   0x1500
  86 #define SATURATION_MODE_FORMATTER1              0x1600
  87 #define SATURATION_MODE_FORMATTER2              0x1700
  88
  89 /* Selectors for the Status controls [GS]ET_STATUS_CTL */
  90 #define SAVE_USER_DEFAULTS_FORMATTER            0x0200
  91 #define RESTORE_USER_DEFAULTS_FORMATTER         0x0300
  92 #define RESTORE_FACTORY_DEFAULTS_FORMATTER      0x0400
  93 #define READ_AGC_FORMATTER                      0x0500
  94 #define READ_SHUTTER_FORMATTER                  0x0600
  95 #define READ_RED_GAIN_FORMATTER                 0x0700
  96 #define READ_BLUE_GAIN_FORMATTER                0x0800
  97 #define SENSOR_TYPE_FORMATTER1                  0x0C00
  98 #define READ_RAW_Y_MEAN_FORMATTER               0x3100
  99 #define SET_POWER_SAVE_MODE_FORMATTER           0x3200
 100 #define MIRROR_IMAGE_FORMATTER                  0x3300
 101 #define LED_FORMATTER                           0x3400
 102 #define SENSOR_TYPE_FORMATTER2                  0x3700
 103
 104 /* Formatters for the Video Endpoint controls [GS]ET_EP_STREAM_CTL */
 105 #define VIDEO_OUTPUT_CONTROL_FORMATTER          0x0100
 106
 107 /* Formatters for the motorized pan & tilt [GS]ET_MPT_CTL */
 108 #define PT_RELATIVE_CONTROL_FORMATTER           0x01
 109 #define PT_RESET_CONTROL_FORMATTER              0x02
 110 #define PT_STATUS_FORMATTER                     0x03
 111
 112 static char *size2name[PSZ_MAX] =
 113 {
 114         "subQCIF",
 115         "QSIF",
 116         "QCIF",
 117         "SIF",
 118         "CIF",
 119         "VGA",
 120 };
 121
 122 /********/
 123
 124 /* Entries for the Nala (645/646) camera; the Nala doesn't have compression
 125    preferences, so you either get compressed or non-compressed streams.
 126
 127    An alternate value of 0 means this mode is not available at all.
 128  */
 129
 130 struct Nala_table_entry {
 131         char alternate;                 /* USB alternate setting */
 132         int compressed;                 /* Compressed yes/no */
 133
 134         unsigned char mode[3];          /* precomputed mode table */
 135 };
 136
 137 static struct Nala_table_entry Nala_table[PSZ_MAX][8] =
 138 {
 139 #include "pwc-nala.h"
 140 };
 141
 142
 143 /****************************************************************************/
 144
 145
 146 #define SendControlMsg(request, value, buflen) \
 147         usb_control_msg(pdev->udev, usb_sndctrlpipe(pdev->udev, 0), \
 148                 request, \
 149                 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, \
 150                 value, \
 151                 pdev->vcinterface, \
 152                 &buf, buflen, 500)
 153
 154 #define RecvControlMsg(request, value, buflen) \
 155         usb_control_msg(pdev->udev, usb_rcvctrlpipe(pdev->udev, 0), \
 156                 request, \
 157                 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, \
 158                 value, \
 159                 pdev->vcinterface, \
 160                 &buf, buflen, 500)
 161
 162
 163 #if PWC_DEBUG
 164 void pwc_hexdump(void *p, int len)
 165 {
 166         int i;
 167         unsigned char *s;
 168         char buf[100], *d;
 169
 170         s = (unsigned char *)p;
 171         d = buf;
 172         *d = '\0';
 173         Debug("Doing hexdump @ %p, %d bytes.\n", p, len);
 174         for (i = 0; i < len; i++) {
 175                 d += sprintf(d, "%02X ", *s++);
 176                 if ((i & 0xF) == 0xF) {
 177                         Debug("%s\n", buf);
 178                         d = buf;
 179                         *d = '\0';
 180                 }
 181         }
 182         if ((i & 0xF) != 0)
 183                 Debug("%s\n", buf);
 184 }
 185 #endif
 186
 187 static inline int send_video_command(struct usb_device *udev, int index, void *buf, int buflen)
 188 {
 189         return usb_control_msg(udev,
 190                 usb_sndctrlpipe(udev, 0),
 191                 SET_EP_STREAM_CTL,
 192                 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 193                 VIDEO_OUTPUT_CONTROL_FORMATTER,
 194                 index,
 195                 buf, buflen, 1000);
 196 }
 197
 198
 199
 200 static inline int set_video_mode_Nala(struct pwc_device *pdev, int size, int frames)
 201 {
 202         unsigned char buf[3];
 203         int ret, fps;
 204         struct Nala_table_entry *pEntry;
 205         int frames2frames[31] =
 206         { /* closest match of framerate */
 207            0,  0,  0,  0,  4,  /*  0-4  */
 208            5,  5,  7,  7, 10,  /*  5-9  */
 209           10, 10, 12, 12, 15,  /* 10-14 */
 210           15, 15, 15, 20, 20,  /* 15-19 */
 211           20, 20, 20, 24, 24,  /* 20-24 */
 212           24, 24, 24, 24, 24,  /* 25-29 */
 213           24                   /* 30    */
 214         };
 215         int frames2table[31] =
 216         { 0, 0, 0, 0, 0, /*  0-4  */
 217           1, 1, 1, 2, 2, /*  5-9  */
 218           3, 3, 4, 4, 4, /* 10-14 */
 219           5, 5, 5, 5, 5, /* 15-19 */
 220           6, 6, 6, 6, 7, /* 20-24 */
 221           7, 7, 7, 7, 7, /* 25-29 */
 222           7              /* 30    */
 223         };
 224
 225         if (size < 0 || size > PSZ_CIF || frames < 4 || frames > 25)
 226                 return -EINVAL;
 227         frames = frames2frames[frames];
 228         fps = frames2table[frames];
 229         pEntry = &Nala_table[size][fps];
 230         if (pEntry->alternate == 0)
 231                 return -EINVAL;
 232
 233         if (pEntry->compressed)
 234                 return -ENOENT; /* Not supported. */
 235
 236         memcpy(buf, pEntry->mode, 3);
 237         ret = send_video_command(pdev->udev, pdev->vendpoint, buf, 3);
 238         if (ret < 0) {
 239                 Debug("Failed to send video command... %d\n", ret);
 240                 return ret;
 241         }
 242         if (pEntry->compressed && pdev->vpalette != VIDEO_PALETTE_RAW)
 243          {
 244            switch(pdev->type) {
 245              case 645:
 246              case 646:
 247 /*             pwc_dec1_init(pdev->type, pdev->release, buf, pdev->decompress_data); */
 248                break;
 249
 250              case 675:
 251              case 680:
 252              case 690:
 253              case 720:
 254              case 730:
 255              case 740:
 256              case 750:
 257 /*             pwc_dec23_init(pdev->type, pdev->release, buf, pdev->decompress_data); */
 258                break;
 259            }
 260         }
 261
 262         pdev->cmd_len = 3;
 263         memcpy(pdev->cmd_buf, buf, 3);
 264
 265         /* Set various parameters */
 266         pdev->vframes = frames;
 267         pdev->vsize = size;
 268         pdev->valternate = pEntry->alternate;
 269         pdev->image = pwc_image_sizes[size];
 270         pdev->frame_size = (pdev->image.x * pdev->image.y * 3) / 2;
 271         if (pEntry->compressed) {
 272                 if (pdev->release < 5) { /* 4 fold compression */
 273                         pdev->vbandlength = 528;
 274                         pdev->frame_size /= 4;
 275                 }
 276                 else {
 277                         pdev->vbandlength = 704;
 278                         pdev->frame_size /= 3;
 279                 }
 280         }
 281         else
 282                 pdev->vbandlength = 0;
 283         return 0;
 284 }
 285
 286
 287 static inline int set_video_mode_Timon(struct pwc_device *pdev, int size, int frames, int compression, int snapshot)
 288 {
 289         unsigned char buf[13];
 290         const struct Timon_table_entry *pChoose;
 291         int ret, fps;
 292
 293         if (size >= PSZ_MAX || frames < 5 || frames > 30 || compression < 0 || compression > 3)
 294                 return -EINVAL;
 295         if (size == PSZ_VGA && frames > 15)
 296                 return -EINVAL;
 297         fps = (frames / 5) - 1;
 298
 299         /* Find a supported framerate with progressively higher compression ratios
 300            if the preferred ratio is not available.
 301         */
 302         pChoose = NULL;
 303         while (compression <= 3) {
 304            pChoose = &Timon_table[size][fps][compression];
 305            if (pChoose->alternate != 0)
 306              break;
 307            compression++;
 308         }
 309         if (pChoose == NULL || pChoose->alternate == 0)
 310                 return -ENOENT; /* Not supported. */
 311
 312         memcpy(buf, pChoose->mode, 13);
 313         if (snapshot)
 314                 buf[0] |= 0x80;
 315         ret = send_video_command(pdev->udev, pdev->vendpoint, buf, 13);
 316         if (ret < 0)
 317                 return ret;
 318
 319 /*      if (pChoose->bandlength > 0 && pdev->vpalette != VIDEO_PALETTE_RAW)
 320            pwc_dec23_init(pdev->type, pdev->release, buf, pdev->decompress_data); */
 321
 322         pdev->cmd_len = 13;
 323         memcpy(pdev->cmd_buf, buf, 13);
 324
 325         /* Set various parameters */
 326         pdev->vframes = frames;
 327         pdev->vsize = size;
 328         pdev->vsnapshot = snapshot;
 329         pdev->valternate = pChoose->alternate;
 330         pdev->image = pwc_image_sizes[size];
 331         pdev->vbandlength = pChoose->bandlength;
 332         if (pChoose->bandlength > 0)
 333                 pdev->frame_size = (pChoose->bandlength * pdev->image.y) / 4;
 334         else
 335                 pdev->frame_size = (pdev->image.x * pdev->image.y * 12) / 8;
 336         return 0;
 337 }
 338
 339
 340 static inline int set_video_mode_Kiara(struct pwc_device *pdev, int size, int frames, int compression, int snapshot)
 341 {
 342         const struct Kiara_table_entry *pChoose = NULL;
 343         int fps, ret;
 344         unsigned char buf[12];
 345         struct Kiara_table_entry RawEntry = {6, 773, 1272, {0xAD, 0xF4, 0x10, 0x27, 0xB6, 0x24, 0x96, 0x02, 0x30, 0x05, 0x03, 0x80}};
 346
 347         if (size >= PSZ_MAX || frames < 5 || frames > 30 || compression < 0 || compression > 3)
 348                 return -EINVAL;
 349         if (size == PSZ_VGA && frames > 15)
 350                 return -EINVAL;
 351         fps = (frames / 5) - 1;
 352
 353         /* special case: VGA @ 5 fps and snapshot is raw bayer mode */
 354         if (size == PSZ_VGA && frames == 5 && snapshot)
 355         {
 356                 /* Only available in case the raw palette is selected or
 357                    we have the decompressor available. This mode is
 358                    only available in compressed form
 359                 */
 360                 if (pdev->vpalette == VIDEO_PALETTE_RAW)
 361                 {
 362                         Info("Choosing VGA/5 BAYER mode (%d).\n", pdev->vpalette);
 363                         pChoose = &RawEntry;
 364                 }
 365                 else
 366                 {
 367                         Info("VGA/5 BAYER mode _must_ have a decompressor available, or use RAW palette.\n");
 368                 }
 369         }
 370         else
 371         {
 372                 /* Find a supported framerate with progressively higher compression ratios
 373                    if the preferred ratio is not available.
 374                    Skip this step when using RAW modes.
 375                 */
 376                 while (compression <= 3) {
 377                         pChoose = &Kiara_table[size][fps][compression];
 378                         if (pChoose->alternate != 0)
 379                                 break;
 380                         compression++;
 381                 }
 382         }
 383         if (pChoose == NULL || pChoose->alternate == 0)
 384                 return -ENOENT; /* Not supported. */
 385
 386         Debug("Using alternate setting %d.\n", pChoose->alternate);
 387
 388         /* usb_control_msg won't take staticly allocated arrays as argument?? */
 389         memcpy(buf, pChoose->mode, 12);
 390         if (snapshot)
 391                 buf[0] |= 0x80;
 392
 393         /* Firmware bug: video endpoint is 5, but commands are sent to endpoint 4 */
 394         ret = send_video_command(pdev->udev, 4 /* pdev->vendpoint */, buf, 12);
 395         if (ret < 0)
 396                 return ret;
 397
 398 /*      if (pChoose->bandlength > 0 && pdev->vpalette != VIDEO_PALETTE_RAW)
 399           pwc_dec23_init(pdev->type, pdev->release, buf, pdev->decompress_data); */
 400
 401         pdev->cmd_len = 12;
 402         memcpy(pdev->cmd_buf, buf, 12);
 403         /* All set and go */
 404         pdev->vframes = frames;
 405         pdev->vsize = size;
 406         pdev->vsnapshot = snapshot;
 407         pdev->valternate = pChoose->alternate;
 408         pdev->image = pwc_image_sizes[size];
 409         pdev->vbandlength = pChoose->bandlength;
 410         if (pdev->vbandlength > 0)
 411                 pdev->frame_size = (pdev->vbandlength * pdev->image.y) / 4;
 412         else
 413                 pdev->frame_size = (pdev->image.x * pdev->image.y * 12) / 8;
 414         return 0;
 415 }
 416
 417
 418
 419 static void pwc_set_image_buffer_size(struct pwc_device *pdev)
 420 {
 421         int i, factor = 0, filler = 0;
 422
 423         /* for PALETTE_YUV420P */
 424         switch(pdev->vpalette)
 425         {
 426         case VIDEO_PALETTE_YUV420P:
 427                 factor = 6;
 428                 filler = 128;
 429                 break;
 430         case VIDEO_PALETTE_RAW:
 431                 factor = 6; /* can be uncompressed YUV420P */
 432                 filler = 0;
 433                 break;
 434         }
 435
 436         /* Set sizes in bytes */
 437         pdev->image.size = pdev->image.x * pdev->image.y * factor / 4;
 438         pdev->view.size  = pdev->view.x  * pdev->view.y  * factor / 4;
 439
 440         /* Align offset, or you'll get some very weird results in
 441            YUV420 mode... x must be multiple of 4 (to get the Y's in
 442            place), and y even (or you'll mixup U & V). This is less of a
 443            problem for YUV420P.
 444          */
 445         pdev->offset.x = ((pdev->view.x - pdev->image.x) / 2) & 0xFFFC;
 446         pdev->offset.y = ((pdev->view.y - pdev->image.y) / 2) & 0xFFFE;
 447
 448         /* Fill buffers with gray or black */
 449         for (i = 0; i < MAX_IMAGES; i++) {
 450                 if (pdev->image_ptr[i] != NULL)
 451                         memset(pdev->image_ptr[i], filler, pdev->view.size);
 452         }
 453 }
 454
 455
 456
 457 /**
 458    @pdev: device structure
 459    @width: viewport width
 460    @height: viewport height
 461    @frame: framerate, in fps
 462    @compression: preferred compression ratio
 463    @snapshot: snapshot mode or streaming
 464  */
 465 int pwc_set_video_mode(struct pwc_device *pdev, int width, int height, int frames, int compression, int snapshot)
 466 {
 467         int ret, size;
 468
 469         Trace(TRACE_FLOW, "set_video_mode(%dx%d @ %d, palette %d).\n", width, height, frames, pdev->vpalette);
 470         size = pwc_decode_size(pdev, width, height);
 471         if (size < 0) {
 472                 Debug("Could not find suitable size.\n");
 473                 return -ERANGE;
 474         }
 475         Debug("decode_size = %d.\n", size);
 476
 477         ret = -EINVAL;
 478         switch(pdev->type) {
 479         case 645:
 480         case 646:
 481                 ret = set_video_mode_Nala(pdev, size, frames);
 482                 break;
 483
 484         case 675:
 485         case 680:
 486         case 690:
 487                 ret = set_video_mode_Timon(pdev, size, frames, compression, snapshot);
 488                 break;
 489
 490         case 720:
 491         case 730:
 492         case 740:
 493         case 750:
 494                 ret = set_video_mode_Kiara(pdev, size, frames, compression, snapshot);
 495                 break;
 496         }
 497         if (ret < 0) {
 498                 if (ret == -ENOENT)
 499                         Info("Video mode %s@%d fps is only supported with the decompressor module (pwcx).\n", size2name[size], frames);
 500                 else {
 501                         Err("Failed to set video mode %s@%d fps; return code = %d\n", size2name[size], frames, ret);
 502                 }
 503                 return ret;
 504         }
 505         pdev->view.x = width;
 506         pdev->view.y = height;
 507         pdev->frame_total_size = pdev->frame_size + pdev->frame_header_size + pdev->frame_trailer_size;
 508         pwc_set_image_buffer_size(pdev);
 509         Trace(TRACE_SIZE, "Set viewport to %dx%d, image size is %dx%d.\n", width, height, pwc_image_sizes[size].x, pwc_image_sizes[size].y);
 510         return 0;
 511 }
 512
 513
 514 /* BRIGHTNESS */
 515
 516 int pwc_get_brightness(struct pwc_device *pdev)
 517 {
 518         char buf;
 519         int ret;
 520
 521         ret = RecvControlMsg(GET_LUM_CTL, BRIGHTNESS_FORMATTER, 1);
 522         if (ret < 0)
 523                 return ret;
 524         return buf << 9;
 525 }
 526
 527 int pwc_set_brightness(struct pwc_device *pdev, int value)
 528 {
 529         char buf;
 530
 531         if (value < 0)
 532                 value = 0;
 533         if (value > 0xffff)
 534                 value = 0xffff;
 535         buf = (value >> 9) & 0x7f;
 536         return SendControlMsg(SET_LUM_CTL, BRIGHTNESS_FORMATTER, 1);
 537 }
 538
 539 /* CONTRAST */
 540
 541 int pwc_get_contrast(struct pwc_device *pdev)
 542 {
 543         char buf;
 544         int ret;
 545
 546         ret = RecvControlMsg(GET_LUM_CTL, CONTRAST_FORMATTER, 1);
 547         if (ret < 0)
 548                 return ret;
 549         return buf << 10;
 550 }
 551
 552 int pwc_set_contrast(struct pwc_device *pdev, int value)
 553 {
 554         char buf;
 555
 556         if (value < 0)
 557                 value = 0;
 558         if (value > 0xffff)
 559                 value = 0xffff;
 560         buf = (value >> 10) & 0x3f;
 561         return SendControlMsg(SET_LUM_CTL, CONTRAST_FORMATTER, 1);
 562 }
 563
 564 /* GAMMA */
 565
 566 int pwc_get_gamma(struct pwc_device *pdev)
 567 {
 568         char buf;
 569         int ret;
 570
 571         ret = RecvControlMsg(GET_LUM_CTL, GAMMA_FORMATTER, 1);
 572         if (ret < 0)
 573                 return ret;
 574         return buf << 11;
 575 }
 576
 577 int pwc_set_gamma(struct pwc_device *pdev, int value)
 578 {
 579         char buf;
 580
 581         if (value < 0)
 582                 value = 0;
 583         if (value > 0xffff)
 584                 value = 0xffff;
 585         buf = (value >> 11) & 0x1f;
 586         return SendControlMsg(SET_LUM_CTL, GAMMA_FORMATTER, 1);
 587 }
 588
 589
 590 /* SATURATION */
 591
 592 int pwc_get_saturation(struct pwc_device *pdev)
 593 {
 594         char buf;
 595         int ret;
 596
 597         if (pdev->type < 675)
 598                 return -1;
 599         ret = RecvControlMsg(GET_CHROM_CTL, pdev->type < 730 ? SATURATION_MODE_FORMATTER2 : SATURATION_MODE_FORMATTER1, 1);
 600         if (ret < 0)
 601                 return ret;
 602         return 32768 + buf * 327;
 603 }
 604
 605 int pwc_set_saturation(struct pwc_device *pdev, int value)
 606 {
 607         char buf;
 608
 609         if (pdev->type < 675)
 610                 return -EINVAL;
 611         if (value < 0)
 612                 value = 0;
 613         if (value > 0xffff)
 614                 value = 0xffff;
 615         /* saturation ranges from -100 to +100 */
 616         buf = (value - 32768) / 327;
 617         return SendControlMsg(SET_CHROM_CTL, pdev->type < 730 ? SATURATION_MODE_FORMATTER2 : SATURATION_MODE_FORMATTER1, 1);
 618 }
 619
 620 /* AGC */
 621
 622 static inline int pwc_set_agc(struct pwc_device *pdev, int mode, int value)
 623 {
 624         char buf;
 625         int ret;
 626
 627         if (mode)
 628                 buf = 0x0; /* auto */
 629         else
 630                 buf = 0xff; /* fixed */
 631
 632         ret = SendControlMsg(SET_LUM_CTL, AGC_MODE_FORMATTER, 1);
 633
 634         if (!mode && ret >= 0) {
 635                 if (value < 0)
 636                         value = 0;
 637                 if (value > 0xffff)
 638                         value = 0xffff;
 639                 buf = (value >> 10) & 0x3F;
 640                 ret = SendControlMsg(SET_LUM_CTL, PRESET_AGC_FORMATTER, 1);
 641         }
 642         if (ret < 0)
 643                 return ret;
 644         return 0;
 645 }
 646
 647 static inline int pwc_get_agc(struct pwc_device *pdev, int *value)
 648 {
 649         unsigned char buf;
 650         int ret;
 651
 652         ret = RecvControlMsg(GET_LUM_CTL, AGC_MODE_FORMATTER, 1);
 653         if (ret < 0)
 654                 return ret;
 655
 656         if (buf != 0) { /* fixed */
 657                 ret = RecvControlMsg(GET_LUM_CTL, PRESET_AGC_FORMATTER, 1);
 658                 if (ret < 0)
 659                         return ret;
 660                 if (buf > 0x3F)
 661                         buf = 0x3F;
 662                 *value = (buf << 10);
 663         }
 664         else { /* auto */
 665                 ret = RecvControlMsg(GET_STATUS_CTL, READ_AGC_FORMATTER, 1);
 666                 if (ret < 0)
 667                         return ret;
 668                 /* Gah... this value ranges from 0x00 ... 0x9F */
 669                 if (buf > 0x9F)
 670                         buf = 0x9F;
 671                 *value = -(48 + buf * 409);
 672         }
 673
 674         return 0;
 675 }
 676
 677 static inline int pwc_set_shutter_speed(struct pwc_device *pdev, int mode, int value)
 678 {
 679         char buf[2];
 680         int speed, ret;
 681
 682
 683         if (mode)
 684                 buf[0] = 0x0;   /* auto */
 685         else
 686                 buf[0] = 0xff; /* fixed */
 687
 688         ret = SendControlMsg(SET_LUM_CTL, SHUTTER_MODE_FORMATTER, 1);
 689
 690         if (!mode && ret >= 0) {
 691                 if (value < 0)
 692                         value = 0;
 693                 if (value > 0xffff)
 694                         value = 0xffff;
 695                 switch(pdev->type) {
 696                 case 675:
 697                 case 680:
 698                 case 690:
 699                         /* speed ranges from 0x0 to 0x290 (656) */
 700                         speed = (value / 100);
 701                         buf[1] = speed >> 8;
 702                         buf[0] = speed & 0xff;
 703                         break;
 704                 case 720:
 705                 case 730:
 706                 case 740:
 707                 case 750:
 708                         /* speed seems to range from 0x0 to 0xff */
 709                         buf[1] = 0;
 710                         buf[0] = value >> 8;
 711                         break;
 712                 }
 713
 714                 ret = SendControlMsg(SET_LUM_CTL, PRESET_SHUTTER_FORMATTER, 2);
 715         }
 716         return ret;
 717 }
 718
 719
 720 /* POWER */
 721
 722 int pwc_camera_power(struct pwc_device *pdev, int power)
 723 {
 724         char buf;
 725
 726         if (pdev->type < 675 || (pdev->type < 730 && pdev->release < 6))
 727                 return 0;       /* Not supported by Nala or Timon < release 6 */
 728
 729         if (power)
 730                 buf = 0x00; /* active */
 731         else
 732                 buf = 0xFF; /* power save */
 733         return SendControlMsg(SET_STATUS_CTL, SET_POWER_SAVE_MODE_FORMATTER, 1);
 734 }
 735
 736
 737
 738 /* private calls */
 739
 740 static inline int pwc_restore_user(struct pwc_device *pdev)
 741 {
 742         char buf; /* dummy */
 743         return SendControlMsg(SET_STATUS_CTL, RESTORE_USER_DEFAULTS_FORMATTER, 0);
 744 }
 745
 746 static inline int pwc_save_user(struct pwc_device *pdev)
 747 {
 748         char buf; /* dummy */
 749         return SendControlMsg(SET_STATUS_CTL, SAVE_USER_DEFAULTS_FORMATTER, 0);
 750 }
 751
 752 static inline int pwc_restore_factory(struct pwc_device *pdev)
 753 {
 754         char buf; /* dummy */
 755         return SendControlMsg(SET_STATUS_CTL, RESTORE_FACTORY_DEFAULTS_FORMATTER, 0);
 756 }
 757
 758  /* ************************************************* */
 759  /* Patch by Alvarado: (not in the original version   */
 760
 761  /*
 762   * the camera recognizes modes from 0 to 4:
 763   *
 764   * 00: indoor (incandescant lighting)
 765   * 01: outdoor (sunlight)
 766   * 02: fluorescent lighting
 767   * 03: manual
 768   * 04: auto
 769   */
 770 static inline int pwc_set_awb(struct pwc_device *pdev, int mode)
 771 {
 772         char buf;
 773         int ret;
 774
 775         if (mode < 0)
 776             mode = 0;
 777
 778         if (mode > 4)
 779             mode = 4;
 780
 781         buf = mode & 0x07; /* just the lowest three bits */
 782
 783         ret = SendControlMsg(SET_CHROM_CTL, WB_MODE_FORMATTER, 1);
 784
 785         if (ret < 0)
 786                 return ret;
 787         return 0;
 788 }
 789
 790 static inline int pwc_get_awb(struct pwc_device *pdev)
 791 {
 792         unsigned char buf;
 793         int ret;
 794
 795         ret = RecvControlMsg(GET_CHROM_CTL, WB_MODE_FORMATTER, 1);
 796
 797         if (ret < 0)
 798                 return ret;
 799         return buf;
 800 }
 801
 802 static inline int pwc_set_red_gain(struct pwc_device *pdev, int value)
 803 {
 804         unsigned char buf;
 805
 806         if (value < 0)
 807                 value = 0;
 808         if (value > 0xffff)
 809                 value = 0xffff;
 810         /* only the msb is considered */
 811         buf = value >> 8;
 812         return SendControlMsg(SET_CHROM_CTL, PRESET_MANUAL_RED_GAIN_FORMATTER, 1);
 813 }
 814
 815 static inline int pwc_get_red_gain(struct pwc_device *pdev, int *value)
 816 {
 817         unsigned char buf;
 818         int ret;
 819
 820         ret = RecvControlMsg(GET_CHROM_CTL, PRESET_MANUAL_RED_GAIN_FORMATTER, 1);
 821         if (ret < 0)
 822             return ret;
 823         *value = buf << 8;
 824         return 0;
 825 }
 826
 827
 828 static inline int pwc_set_blue_gain(struct pwc_device *pdev, int value)
 829 {
 830         unsigned char buf;
 831
 832         if (value < 0)
 833                 value = 0;
 834         if (value > 0xffff)
 835                 value = 0xffff;
 836         /* only the msb is considered */
 837         buf = value >> 8;
 838         return SendControlMsg(SET_CHROM_CTL, PRESET_MANUAL_BLUE_GAIN_FORMATTER, 1);
 839 }
 840
 841 static inline int pwc_get_blue_gain(struct pwc_device *pdev, int *value)
 842 {
 843         unsigned char buf;
 844         int ret;
 845
 846         ret = RecvControlMsg(GET_CHROM_CTL, PRESET_MANUAL_BLUE_GAIN_FORMATTER, 1);
 847         if (ret < 0)
 848             return ret;
 849         *value = buf << 8;
 850         return 0;
 851 }
 852
 853
 854 /* The following two functions are different, since they only read the
 855    internal red/blue gains, which may be different from the manual
 856    gains set or read above.
 857  */
 858 static inline int pwc_read_red_gain(struct pwc_device *pdev, int *value)
 859 {
 860         unsigned char buf;
 861         int ret;
 862
 863         ret = RecvControlMsg(GET_STATUS_CTL, READ_RED_GAIN_FORMATTER, 1);
 864         if (ret < 0)
 865                 return ret;
 866         *value = buf << 8;
 867         return 0;
 868 }
 869
 870 static inline int pwc_read_blue_gain(struct pwc_device *pdev, int *value)
 871 {
 872         unsigned char buf;
 873         int ret;
 874
 875         ret = RecvControlMsg(GET_STATUS_CTL, READ_BLUE_GAIN_FORMATTER, 1);
 876         if (ret < 0)
 877                 return ret;
 878         *value = buf << 8;
 879         return 0;
 880 }
 881
 882
 883 static inline int pwc_set_wb_speed(struct pwc_device *pdev, int speed)
 884 {
 885         unsigned char buf;
 886
 887         /* useful range is 0x01..0x20 */
 888         buf = speed / 0x7f0;
 889         return SendControlMsg(SET_CHROM_CTL, AWB_CONTROL_SPEED_FORMATTER, 1);
 890 }
 891
 892 static inline int pwc_get_wb_speed(struct pwc_device *pdev, int *value)
 893 {
 894         unsigned char buf;
 895         int ret;
 896
 897         ret = RecvControlMsg(GET_CHROM_CTL, AWB_CONTROL_SPEED_FORMATTER, 1);
 898         if (ret < 0)
 899                 return ret;
 900         *value = buf * 0x7f0;
 901         return 0;
 902 }
 903
 904
 905 static inline int pwc_set_wb_delay(struct pwc_device *pdev, int delay)
 906 {
 907         unsigned char buf;
 908
 909         /* useful range is 0x01..0x3F */
 910         buf = (delay >> 10);
 911         return SendControlMsg(SET_CHROM_CTL, AWB_CONTROL_DELAY_FORMATTER, 1);
 912 }
 913
 914 static inline int pwc_get_wb_delay(struct pwc_device *pdev, int *value)
 915 {
 916         unsigned char buf;
 917         int ret;
 918
 919         ret = RecvControlMsg(GET_CHROM_CTL, AWB_CONTROL_DELAY_FORMATTER, 1);
 920         if (ret < 0)
 921                 return ret;
 922         *value = buf << 10;
 923         return 0;
 924 }
 925
 926
 927 int pwc_set_leds(struct pwc_device *pdev, int on_value, int off_value)
 928 {
 929         unsigned char buf[2];
 930
 931         if (pdev->type < 730)
 932                 return 0;
 933         on_value /= 100;
 934         off_value /= 100;
 935         if (on_value < 0)
 936                 on_value = 0;
 937         if (on_value > 0xff)
 938                 on_value = 0xff;
 939         if (off_value < 0)
 940                 off_value = 0;
 941         if (off_value > 0xff)
 942                 off_value = 0xff;
 943
 944         buf[0] = on_value;
 945         buf[1] = off_value;
 946
 947         return SendControlMsg(SET_STATUS_CTL, LED_FORMATTER, 2);
 948 }
 949
 950 static int pwc_get_leds(struct pwc_device *pdev, int *on_value, int *off_value)
 951 {
 952         unsigned char buf[2];
 953         int ret;
 954
 955         if (pdev->type < 730) {
 956                 *on_value = -1;
 957                 *off_value = -1;
 958                 return 0;
 959         }
 960
 961         ret = RecvControlMsg(GET_STATUS_CTL, LED_FORMATTER, 2);
 962         if (ret < 0)
 963                 return ret;
 964         *on_value = buf[0] * 100;
 965         *off_value = buf[1] * 100;
 966         return 0;
 967 }
 968
 969 static inline int pwc_set_contour(struct pwc_device *pdev, int contour)
 970 {
 971         unsigned char buf;
 972         int ret;
 973
 974         if (contour < 0)
 975                 buf = 0xff; /* auto contour on */
 976         else
 977                 buf = 0x0; /* auto contour off */
 978         ret = SendControlMsg(SET_LUM_CTL, AUTO_CONTOUR_FORMATTER, 1);
 979         if (ret < 0)
 980                 return ret;
 981
 982         if (contour < 0)
 983                 return 0;
 984         if (contour > 0xffff)
 985                 contour = 0xffff;
 986
 987         buf = (contour >> 10); /* contour preset is [0..3f] */
 988         ret = SendControlMsg(SET_LUM_CTL, PRESET_CONTOUR_FORMATTER, 1);
 989         if (ret < 0)
 990                 return ret;
 991         return 0;
 992 }
 993
 994 static inline int pwc_get_contour(struct pwc_device *pdev, int *contour)
 995 {
 996         unsigned char buf;
 997         int ret;
 998
 999         ret = RecvControlMsg(GET_LUM_CTL, AUTO_CONTOUR_FORMATTER, 1);
1000         if (ret < 0)
1001                 return ret;
1002
1003         if (buf == 0) {
1004                 /* auto mode off, query current preset value */
1005                 ret = RecvControlMsg(GET_LUM_CTL, PRESET_CONTOUR_FORMATTER, 1);
1006                 if (ret < 0)
1007                         return ret;
1008                 *contour = buf << 10;
1009         }
1010         else
1011                 *contour = -1;
1012         return 0;
1013 }
1014
1015
1016 static inline int pwc_set_backlight(struct pwc_device *pdev, int backlight)
1017 {
1018         unsigned char buf;
1019
1020         if (backlight)
1021                 buf = 0xff;
1022         else
1023                 buf = 0x0;
1024         return SendControlMsg(SET_LUM_CTL, BACK_LIGHT_COMPENSATION_FORMATTER, 1);
1025 }
1026
1027 static inline int pwc_get_backlight(struct pwc_device *pdev, int *backlight)
1028 {
1029         int ret;
1030         unsigned char buf;
1031
1032         ret = RecvControlMsg(GET_LUM_CTL, BACK_LIGHT_COMPENSATION_FORMATTER, 1);
1033         if (ret < 0)
1034                 return ret;
1035         *backlight = buf;
1036         return 0;
1037 }
1038
1039
1040 static inline int pwc_set_flicker(struct pwc_device *pdev, int flicker)
1041 {
1042         unsigned char buf;
1043
1044         if (flicker)
1045                 buf = 0xff;
1046         else
1047                 buf = 0x0;
1048         return SendControlMsg(SET_LUM_CTL, FLICKERLESS_MODE_FORMATTER, 1);
1049 }
1050
1051 static inline int pwc_get_flicker(struct pwc_device *pdev, int *flicker)
1052 {
1053         int ret;
1054         unsigned char buf;
1055
1056         ret = RecvControlMsg(GET_LUM_CTL, FLICKERLESS_MODE_FORMATTER, 1);
1057         if (ret < 0)
1058                 return ret;
1059         *flicker = buf;
1060         return 0;
1061 }
1062
1063
1064 static inline int pwc_set_dynamic_noise(struct pwc_device *pdev, int noise)
1065 {
1066         unsigned char buf;
1067
1068         if (noise < 0)
1069                 noise = 0;
1070         if (noise > 3)
1071                 noise = 3;
1072         buf = noise;
1073         return SendControlMsg(SET_LUM_CTL, DYNAMIC_NOISE_CONTROL_FORMATTER, 1);
1074 }
1075
1076 static inline int pwc_get_dynamic_noise(struct pwc_device *pdev, int *noise)
1077 {
1078         int ret;
1079         unsigned char buf;
1080
1081         ret = RecvControlMsg(GET_LUM_CTL, DYNAMIC_NOISE_CONTROL_FORMATTER, 1);
1082         if (ret < 0)
1083                 return ret;
1084         *noise = buf;
1085         return 0;
1086 }
1087
1088 static int pwc_mpt_reset(struct pwc_device *pdev, int flags)
1089 {
1090         unsigned char buf;
1091
1092         buf = flags & 0x03; // only lower two bits are currently used
1093         return SendControlMsg(SET_MPT_CTL, PT_RESET_CONTROL_FORMATTER, 1);
1094 }
1095
1096 static inline int pwc_mpt_set_angle(struct pwc_device *pdev, int pan, int tilt)
1097 {
1098         unsigned char buf[4];
1099
1100         /* set new relative angle; angles are expressed in degrees * 100,
1101            but cam as .5 degree resolution, hence divide by 200. Also
1102            the angle must be multiplied by 64 before it's send to
1103            the cam (??)
1104          */
1105         pan  =  64 * pan  / 100;
1106         tilt = -64 * tilt / 100; /* positive tilt is down, which is not what the user would expect */
1107         buf[0] = pan & 0xFF;
1108         buf[1] = (pan >> 8) & 0xFF;
1109         buf[2] = tilt & 0xFF;
1110         buf[3] = (tilt >> 8) & 0xFF;
1111         return SendControlMsg(SET_MPT_CTL, PT_RELATIVE_CONTROL_FORMATTER, 4);
1112 }
1113
1114 static inline int pwc_mpt_get_status(struct pwc_device *pdev, struct pwc_mpt_status *status)
1115 {
1116         int ret;
1117         unsigned char buf[5];
1118
1119         ret = RecvControlMsg(GET_MPT_CTL, PT_STATUS_FORMATTER, 5);
1120         if (ret < 0)
1121                 return ret;
1122         status->status = buf[0] & 0x7; // 3 bits are used for reporting
1123         status->time_pan = (buf[1] << 8) + buf[2];
1124         status->time_tilt = (buf[3] << 8) + buf[4];
1125         return 0;
1126 }
1127
1128
1129 int pwc_get_cmos_sensor(struct pwc_device *pdev, int *sensor)
1130 {
1131         unsigned char buf;
1132         int ret = -1, request;
1133
1134         if (pdev->type < 675)
1135                 request = SENSOR_TYPE_FORMATTER1;
1136         else if (pdev->type < 730)
1137                 return -1; /* The Vesta series doesn't have this call */
1138         else
1139                 request = SENSOR_TYPE_FORMATTER2;
1140
1141         ret = RecvControlMsg(GET_STATUS_CTL, request, 1);
1142         if (ret < 0)
1143                 return ret;
1144         if (pdev->type < 675)
1145                 *sensor = buf | 0x100;
1146         else
1147                 *sensor = buf;
1148         return 0;
1149 }
1150
1151
1152  /* End of Add-Ons                                    */
1153  /* ************************************************* */
1154
1155 /* Linux 2.5.something and 2.6 pass direct pointers to arguments of
1156    ioctl() calls. With 2.4, you have to do tedious copy_from_user()
1157    and copy_to_user() calls. With these macros we circumvent this,
1158    and let me maintain only one source file. The functionality is
1159    exactly the same otherwise.
1160  */
1161
1162 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)
1163
1164 /* define local variable for arg */
1165 #define ARG_DEF(ARG_type, ARG_name)\
1166         ARG_type *ARG_name = arg;
1167 /* copy arg to local variable */
1168 #define ARG_IN(ARG_name) /* nothing */
1169 /* argument itself (referenced) */
1170 #define ARGR(ARG_name) (*ARG_name)
1171 /* argument address */
1172 #define ARGA(ARG_name) ARG_name
1173 /* copy local variable to arg */
1174 #define ARG_OUT(ARG_name) /* nothing */
1175
1176 #else
1177
1178 #define ARG_DEF(ARG_type, ARG_name)\
1179         ARG_type ARG_name;
1180 #define ARG_IN(ARG_name)\
1181         if (copy_from_user(&ARG_name, arg, sizeof(ARG_name))) {\
1182                 ret = -EFAULT;\
1183                 break;\
1184         }
1185 #define ARGR(ARG_name) ARG_name
1186 #define ARGA(ARG_name) &ARG_name
1187 #define ARG_OUT(ARG_name)\
1188         if (copy_to_user(arg, &ARG_name, sizeof(ARG_name))) {\
1189                 ret = -EFAULT;\
1190                 break;\
1191         }
1192
1193 #endif
1194
1195 int pwc_ioctl(struct pwc_device *pdev, unsigned int cmd, void *arg)
1196 {
1197         int ret = 0;
1198
1199         switch(cmd) {
1200         case VIDIOCPWCRUSER:
1201         {
1202                 if (pwc_restore_user(pdev))
1203                         ret = -EINVAL;
1204                 break;
1205         }
1206
1207         case VIDIOCPWCSUSER:
1208         {
1209                 if (pwc_save_user(pdev))
1210                         ret = -EINVAL;
1211                 break;
1212         }
1213
1214         case VIDIOCPWCFACTORY:
1215         {
1216                 if (pwc_restore_factory(pdev))
1217                         ret = -EINVAL;
1218                 break;
1219         }
1220
1221         case VIDIOCPWCSCQUAL:
1222         {
1223                 ARG_DEF(int, qual)
1224
1225                 ARG_IN(qual)
1226                 if (ARGR(qual) < 0 || ARGR(qual) > 3)
1227                         ret = -EINVAL;
1228                 else
1229                         ret = pwc_try_video_mode(pdev, pdev->view.x, pdev->view.y, pdev->vframes, ARGR(qual), pdev->vsnapshot);
1230                 if (ret >= 0)
1231                         pdev->vcompression = ARGR(qual);
1232                 break;
1233         }
1234
1235         case VIDIOCPWCGCQUAL:
1236         {
1237                 ARG_DEF(int, qual)
1238
1239                 ARGR(qual) = pdev->vcompression;
1240                 ARG_OUT(qual)
1241                 break;
1242         }
1243
1244         case VIDIOCPWCPROBE:
1245         {
1246                 ARG_DEF(struct pwc_probe, probe)
1247
1248                 strcpy(ARGR(probe).name, pdev->vdev->name);
1249                 ARGR(probe).type = pdev->type;
1250                 ARG_OUT(probe)
1251                 break;
1252         }
1253
1254         case VIDIOCPWCGSERIAL:
1255         {
1256                 ARG_DEF(struct pwc_serial, serial)
1257
1258                 strcpy(ARGR(serial).serial, pdev->serial);
1259                 ARG_OUT(serial)
1260                 break;
1261         }
1262
1263         case VIDIOCPWCSAGC:
1264         {
1265                 ARG_DEF(int, agc)
1266
1267                 ARG_IN(agc)
1268                 if (pwc_set_agc(pdev, ARGR(agc) < 0 ? 1 : 0, ARGR(agc)))
1269                         ret = -EINVAL;
1270                 break;
1271         }
1272
1273         case VIDIOCPWCGAGC:
1274         {
1275                 ARG_DEF(int, agc)
1276
1277                 if (pwc_get_agc(pdev, ARGA(agc)))
1278                         ret = -EINVAL;
1279                 ARG_OUT(agc)
1280                 break;
1281         }
1282
1283         case VIDIOCPWCSSHUTTER:
1284         {
1285                 ARG_DEF(int, shutter_speed)
1286
1287                 ARG_IN(shutter_speed)
1288                 ret = pwc_set_shutter_speed(pdev, ARGR(shutter_speed) < 0 ? 1 : 0, ARGR(shutter_speed));
1289                 break;
1290         }
1291
1292         case VIDIOCPWCSAWB:
1293         {
1294                 ARG_DEF(struct pwc_whitebalance, wb)
1295
1296                 ARG_IN(wb)
1297                 ret = pwc_set_awb(pdev, ARGR(wb).mode);
1298                 if (ret >= 0 && ARGR(wb).mode == PWC_WB_MANUAL) {
1299                         pwc_set_red_gain(pdev, ARGR(wb).manual_red);
1300                         pwc_set_blue_gain(pdev, ARGR(wb).manual_blue);
1301                 }
1302                 break;
1303         }
1304
1305         case VIDIOCPWCGAWB:
1306         {
1307                 ARG_DEF(struct pwc_whitebalance, wb)
1308
1309                 memset(ARGA(wb), 0, sizeof(struct pwc_whitebalance));
1310                 ARGR(wb).mode = pwc_get_awb(pdev);
1311                 if (ARGR(wb).mode < 0)
1312                         ret = -EINVAL;
1313                 else {
1314                         if (ARGR(wb).mode == PWC_WB_MANUAL) {
1315                                 ret = pwc_get_red_gain(pdev, &ARGR(wb).manual_red);
1316                                 if (ret < 0)
1317                                         break;
1318                                 ret = pwc_get_blue_gain(pdev, &ARGR(wb).manual_blue);
1319                                 if (ret < 0)
1320                                         break;
1321                         }
1322                         if (ARGR(wb).mode == PWC_WB_AUTO) {
1323                                 ret = pwc_read_red_gain(pdev, &ARGR(wb).read_red);
1324                                 if (ret < 0)
1325                                         break;
1326                                 ret =pwc_read_blue_gain(pdev, &ARGR(wb).read_blue);
1327                                 if (ret < 0)
1328                                         break;
1329                         }
1330                 }
1331                 ARG_OUT(wb)
1332                 break;
1333         }
1334
1335         case VIDIOCPWCSAWBSPEED:
1336         {
1337                 ARG_DEF(struct pwc_wb_speed, wbs)
1338
1339                 if (ARGR(wbs).control_speed > 0) {
1340                         ret = pwc_set_wb_speed(pdev, ARGR(wbs).control_speed);
1341                 }
1342                 if (ARGR(wbs).control_delay > 0) {
1343                         ret = pwc_set_wb_delay(pdev, ARGR(wbs).control_delay);
1344                 }
1345                 break;
1346         }
1347
1348         case VIDIOCPWCGAWBSPEED:
1349         {
1350                 ARG_DEF(struct pwc_wb_speed, wbs)
1351
1352                 ret = pwc_get_wb_speed(pdev, &ARGR(wbs).control_speed);
1353                 if (ret < 0)
1354                         break;
1355                 ret = pwc_get_wb_delay(pdev, &ARGR(wbs).control_delay);
1356                 if (ret < 0)
1357                         break;
1358                 ARG_OUT(wbs)
1359                 break;
1360         }
1361
1362         case VIDIOCPWCSLED:
1363         {
1364                 ARG_DEF(struct pwc_leds, leds)
1365
1366                 ARG_IN(leds)
1367                 ret = pwc_set_leds(pdev, ARGR(leds).led_on, ARGR(leds).led_off);
1368                 break;
1369         }
1370
1371
1372         case VIDIOCPWCGLED:
1373         {
1374                 ARG_DEF(struct pwc_leds, leds)
1375
1376                 ret = pwc_get_leds(pdev, &ARGR(leds).led_on, &ARGR(leds).led_off);
1377                 ARG_OUT(leds)
1378                 break;
1379         }
1380
1381         case VIDIOCPWCSCONTOUR:
1382         {
1383                 ARG_DEF(int, contour)
1384
1385                 ARG_IN(contour)
1386                 ret = pwc_set_contour(pdev, ARGR(contour));
1387                 break;
1388         }
1389
1390         case VIDIOCPWCGCONTOUR:
1391         {
1392                 ARG_DEF(int, contour)
1393
1394                 ret = pwc_get_contour(pdev, ARGA(contour));
1395                 ARG_OUT(contour)
1396                 break;
1397         }
1398
1399         case VIDIOCPWCSBACKLIGHT:
1400         {
1401                 ARG_DEF(int, backlight)
1402
1403                 ARG_IN(backlight)
1404                 ret = pwc_set_backlight(pdev, ARGR(backlight));
1405                 break;
1406         }
1407
1408         case VIDIOCPWCGBACKLIGHT:
1409         {
1410                 ARG_DEF(int, backlight)
1411
1412                 ret = pwc_get_backlight(pdev, ARGA(backlight));
1413                 ARG_OUT(backlight)
1414                 break;
1415         }
1416
1417         case VIDIOCPWCSFLICKER:
1418         {
1419                 ARG_DEF(int, flicker)
1420
1421                 ARG_IN(flicker)
1422                 ret = pwc_set_flicker(pdev, ARGR(flicker));
1423                 break;
1424         }
1425
1426         case VIDIOCPWCGFLICKER:
1427         {
1428                 ARG_DEF(int, flicker)
1429
1430                 ret = pwc_get_flicker(pdev, ARGA(flicker));
1431                 ARG_OUT(flicker)
1432                 break;
1433         }
1434
1435         case VIDIOCPWCSDYNNOISE:
1436         {
1437                 ARG_DEF(int, dynnoise)
1438
1439                 ARG_IN(dynnoise)
1440                 ret = pwc_set_dynamic_noise(pdev, ARGR(dynnoise));
1441                 break;
1442         }
1443
1444         case VIDIOCPWCGDYNNOISE:
1445         {
1446                 ARG_DEF(int, dynnoise)
1447
1448                 ret = pwc_get_dynamic_noise(pdev, ARGA(dynnoise));
1449                 ARG_OUT(dynnoise);
1450                 break;
1451         }
1452
1453         case VIDIOCPWCGREALSIZE:
1454         {
1455                 ARG_DEF(struct pwc_imagesize, size)
1456
1457                 ARGR(size).width = pdev->image.x;
1458                 ARGR(size).height = pdev->image.y;
1459                 ARG_OUT(size)
1460                 break;
1461         }
1462
1463         case VIDIOCPWCMPTRESET:
1464         {
1465                 if (pdev->features & FEATURE_MOTOR_PANTILT)
1466                 {
1467                         ARG_DEF(int, flags)
1468
1469                         ARG_IN(flags)
1470                         ret = pwc_mpt_reset(pdev, ARGR(flags));
1471                         if (ret >= 0)
1472                         {
1473                                 pdev->pan_angle = 0;
1474                                 pdev->tilt_angle = 0;
1475                         }
1476                 }
1477                 else
1478                 {
1479                         ret = -ENXIO;
1480                 }
1481                 break;
1482         }
1483
1484         case VIDIOCPWCMPTGRANGE:
1485         {
1486                 if (pdev->features & FEATURE_MOTOR_PANTILT)
1487                 {
1488                         ARG_DEF(struct pwc_mpt_range, range)
1489
1490                         ARGR(range) = pdev->angle_range;
1491                         ARG_OUT(range)
1492                 }
1493                 else
1494                 {
1495                         ret = -ENXIO;
1496                 }
1497                 break;
1498         }
1499
1500         case VIDIOCPWCMPTSANGLE:
1501         {
1502                 int new_pan, new_tilt;
1503
1504                 if (pdev->features & FEATURE_MOTOR_PANTILT)
1505                 {
1506                         ARG_DEF(struct pwc_mpt_angles, angles)
1507
1508                         ARG_IN(angles)
1509                         /* The camera can only set relative angles, so
1510                            do some calculations when getting an absolute angle .
1511                          */
1512                         if (ARGR(angles).absolute)
1513                         {
1514                                 new_pan  = ARGR(angles).pan;
1515                                 new_tilt = ARGR(angles).tilt;
1516                         }
1517                         else
1518                         {
1519                                 new_pan  = pdev->pan_angle  + ARGR(angles).pan;
1520                                 new_tilt = pdev->tilt_angle + ARGR(angles).tilt;
1521                         }
1522                         /* check absolute ranges */
1523                         if (new_pan  < pdev->angle_range.pan_min  ||
1524                             new_pan  > pdev->angle_range.pan_max  ||
1525                             new_tilt < pdev->angle_range.tilt_min ||
1526                             new_tilt > pdev->angle_range.tilt_max)
1527                         {
1528                                 ret = -ERANGE;
1529                         }
1530                         else
1531                         {
1532                                 /* go to relative range, check again */
1533                                 new_pan  -= pdev->pan_angle;
1534                                 new_tilt -= pdev->tilt_angle;
1535                                 /* angles are specified in degrees * 100, thus the limit = 36000 */
1536                                 if (new_pan < -36000 || new_pan > 36000 || new_tilt < -36000 || new_tilt > 36000)
1537                                         ret = -ERANGE;
1538                         }
1539                         if (ret == 0) /* no errors so far */
1540                         {
1541                                 ret = pwc_mpt_set_angle(pdev, new_pan, new_tilt);
1542                                 if (ret >= 0)
1543                                 {
1544                                         pdev->pan_angle  += new_pan;
1545                                         pdev->tilt_angle += new_tilt;
1546                                 }
1547                                 if (ret == -EPIPE) /* stall -> out of range */
1548                                         ret = -ERANGE;
1549                         }
1550                 }
1551                 else
1552                 {
1553                         ret = -ENXIO;
1554                 }
1555                 break;
1556         }
1557
1558         case VIDIOCPWCMPTGANGLE:
1559         {
1560
1561                 if (pdev->features & FEATURE_MOTOR_PANTILT)
1562                 {
1563                         ARG_DEF(struct pwc_mpt_angles, angles)
1564
1565                         ARGR(angles).absolute = 1;
1566                         ARGR(angles).pan  = pdev->pan_angle;
1567                         ARGR(angles).tilt = pdev->tilt_angle;
1568                         ARG_OUT(angles)
1569                 }
1570                 else
1571                 {
1572                         ret = -ENXIO;
1573                 }
1574                 break;
1575         }
1576
1577         case VIDIOCPWCMPTSTATUS:
1578         {
1579                 if (pdev->features & FEATURE_MOTOR_PANTILT)
1580                 {
1581                         ARG_DEF(struct pwc_mpt_status, status)
1582
1583                         ret = pwc_mpt_get_status(pdev, ARGA(status));
1584                         ARG_OUT(status)
1585                 }
1586                 else
1587                 {
1588                         ret = -ENXIO;
1589                 }
1590                 break;
1591         }
1592
1593         case VIDIOCPWCGVIDCMD:
1594         {
1595                 ARG_DEF(struct pwc_video_command, cmd);
1596
1597                 ARGR(cmd).type = pdev->type;
1598                 ARGR(cmd).release = pdev->release;
1599                 ARGR(cmd).command_len = pdev->cmd_len;
1600                 memcpy(&ARGR(cmd).command_buf, pdev->cmd_buf, pdev->cmd_len);
1601                 ARGR(cmd).bandlength = pdev->vbandlength;
1602                 ARGR(cmd).frame_size = pdev->frame_size;
1603                 ARG_OUT(cmd)
1604                 break;
1605         }
1606        /*
1607         case VIDIOCPWCGVIDTABLE:
1608         {
1609                 ARG_DEF(struct pwc_table_init_buffer, table);
1610                 ARGR(table).len = pdev->cmd_len;
1611                 memcpy(&ARGR(table).buffer, pdev->decompress_data, pdev->decompressor->table_size);
1612                 ARG_OUT(table)
1613                 break;
1614         }
1615         */
1616
1617         default:
1618                 ret = -ENOIOCTLCMD;
1619                 break;
1620         }
1621
1622         if (ret > 0)
1623                 return 0;
1624         return ret;
1625 }
1626
1627
1628