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 #include "pwc-dec1.h"
  52 #include "pwc-dec23.h"
  53
  54 /* Request types: video */
  55 #define SET_LUM_CTL                     0x01
  56 #define GET_LUM_CTL                     0x02
  57 #define SET_CHROM_CTL                   0x03
  58 #define GET_CHROM_CTL                   0x04
  59 #define SET_STATUS_CTL                  0x05
  60 #define GET_STATUS_CTL                  0x06
  61 #define SET_EP_STREAM_CTL               0x07
  62 #define GET_EP_STREAM_CTL               0x08
  63 #define SET_MPT_CTL                     0x0D
  64 #define GET_MPT_CTL                     0x0E
  65
  66 /* Selectors for the Luminance controls [GS]ET_LUM_CTL */
  67 #define AGC_MODE_FORMATTER                      0x2000
  68 #define PRESET_AGC_FORMATTER                    0x2100
  69 #define SHUTTER_MODE_FORMATTER                  0x2200
  70 #define PRESET_SHUTTER_FORMATTER                0x2300
  71 #define PRESET_CONTOUR_FORMATTER                0x2400
  72 #define AUTO_CONTOUR_FORMATTER                  0x2500
  73 #define BACK_LIGHT_COMPENSATION_FORMATTER       0x2600
  74 #define CONTRAST_FORMATTER                      0x2700
  75 #define DYNAMIC_NOISE_CONTROL_FORMATTER         0x2800
  76 #define FLICKERLESS_MODE_FORMATTER              0x2900
  77 #define AE_CONTROL_SPEED                        0x2A00
  78 #define BRIGHTNESS_FORMATTER                    0x2B00
  79 #define GAMMA_FORMATTER                         0x2C00
  80
  81 /* Selectors for the Chrominance controls [GS]ET_CHROM_CTL */
  82 #define WB_MODE_FORMATTER                       0x1000
  83 #define AWB_CONTROL_SPEED_FORMATTER             0x1100
  84 #define AWB_CONTROL_DELAY_FORMATTER             0x1200
  85 #define PRESET_MANUAL_RED_GAIN_FORMATTER        0x1300
  86 #define PRESET_MANUAL_BLUE_GAIN_FORMATTER       0x1400
  87 #define COLOUR_MODE_FORMATTER                   0x1500
  88 #define SATURATION_MODE_FORMATTER1              0x1600
  89 #define SATURATION_MODE_FORMATTER2              0x1700
  90
  91 /* Selectors for the Status controls [GS]ET_STATUS_CTL */
  92 #define SAVE_USER_DEFAULTS_FORMATTER            0x0200
  93 #define RESTORE_USER_DEFAULTS_FORMATTER         0x0300
  94 #define RESTORE_FACTORY_DEFAULTS_FORMATTER      0x0400
  95 #define READ_AGC_FORMATTER                      0x0500
  96 #define READ_SHUTTER_FORMATTER                  0x0600
  97 #define READ_RED_GAIN_FORMATTER                 0x0700
  98 #define READ_BLUE_GAIN_FORMATTER                0x0800
  99 #define SENSOR_TYPE_FORMATTER1                  0x0C00
 100 #define READ_RAW_Y_MEAN_FORMATTER               0x3100
 101 #define SET_POWER_SAVE_MODE_FORMATTER           0x3200
 102 #define MIRROR_IMAGE_FORMATTER                  0x3300
 103 #define LED_FORMATTER                           0x3400
 104 #define SENSOR_TYPE_FORMATTER2                  0x3700
 105
 106 /* Formatters for the Video Endpoint controls [GS]ET_EP_STREAM_CTL */
 107 #define VIDEO_OUTPUT_CONTROL_FORMATTER          0x0100
 108
 109 /* Formatters for the motorized pan & tilt [GS]ET_MPT_CTL */
 110 #define PT_RELATIVE_CONTROL_FORMATTER           0x01
 111 #define PT_RESET_CONTROL_FORMATTER              0x02
 112 #define PT_STATUS_FORMATTER                     0x03
 113
 114 static char *size2name[PSZ_MAX] =
 115 {
 116         "subQCIF",
 117         "QSIF",
 118         "QCIF",
 119         "SIF",
 120         "CIF",
 121         "VGA",
 122 };
 123
 124 /********/
 125
 126 /* Entries for the Nala (645/646) camera; the Nala doesn't have compression
 127    preferences, so you either get compressed or non-compressed streams.
 128
 129    An alternate value of 0 means this mode is not available at all.
 130  */
 131
 132 struct Nala_table_entry {
 133         char alternate;                 /* USB alternate setting */
 134         int compressed;                 /* Compressed yes/no */
 135
 136         unsigned char mode[3];          /* precomputed mode table */
 137 };
 138
 139 static struct Nala_table_entry Nala_table[PSZ_MAX][8] =
 140 {
 141 #include "pwc-nala.h"
 142 };
 143
 144
 145 /****************************************************************************/
 146
 147
 148 #define SendControlMsg(request, value, buflen) \
 149         usb_control_msg(pdev->udev, usb_sndctrlpipe(pdev->udev, 0), \
 150                 request, \
 151                 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, \
 152                 value, \
 153                 pdev->vcinterface, \
 154                 &buf, buflen, 500)
 155
 156 #define RecvControlMsg(request, value, buflen) \
 157         usb_control_msg(pdev->udev, usb_rcvctrlpipe(pdev->udev, 0), \
 158                 request, \
 159                 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, \
 160                 value, \
 161                 pdev->vcinterface, \
 162                 &buf, buflen, 500)
 163
 164
 165 #if PWC_DEBUG
 166 void pwc_hexdump(void *p, int len)
 167 {
 168         int i;
 169         unsigned char *s;
 170         char buf[100], *d;
 171
 172         s = (unsigned char *)p;
 173         d = buf;
 174         *d = '\0';
 175         Debug("Doing hexdump @ %p, %d bytes.\n", p, len);
 176         for (i = 0; i < len; i++) {
 177                 d += sprintf(d, "%02X ", *s++);
 178                 if ((i & 0xF) == 0xF) {
 179                         Debug("%s\n", buf);
 180                         d = buf;
 181                         *d = '\0';
 182                 }
 183         }
 184         if ((i & 0xF) != 0)
 185                 Debug("%s\n", buf);
 186 }
 187 #endif
 188
 189 static inline int send_video_command(struct usb_device *udev, int index, void *buf, int buflen)
 190 {
 191         return usb_control_msg(udev,
 192                 usb_sndctrlpipe(udev, 0),
 193                 SET_EP_STREAM_CTL,
 194                 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 195                 VIDEO_OUTPUT_CONTROL_FORMATTER,
 196                 index,
 197                 buf, buflen, 1000);
 198 }
 199
 200
 201
 202 static inline int set_video_mode_Nala(struct pwc_device *pdev, int size, int frames)
 203 {
 204         unsigned char buf[3];
 205         int ret, fps;
 206         struct Nala_table_entry *pEntry;
 207         int frames2frames[31] =
 208         { /* closest match of framerate */
 209            0,  0,  0,  0,  4,  /*  0-4  */
 210            5,  5,  7,  7, 10,  /*  5-9  */
 211           10, 10, 12, 12, 15,  /* 10-14 */
 212           15, 15, 15, 20, 20,  /* 15-19 */
 213           20, 20, 20, 24, 24,  /* 20-24 */
 214           24, 24, 24, 24, 24,  /* 25-29 */
 215           24                   /* 30    */
 216         };
 217         int frames2table[31] =
 218         { 0, 0, 0, 0, 0, /*  0-4  */
 219           1, 1, 1, 2, 2, /*  5-9  */
 220           3, 3, 4, 4, 4, /* 10-14 */
 221           5, 5, 5, 5, 5, /* 15-19 */
 222           6, 6, 6, 6, 7, /* 20-24 */
 223           7, 7, 7, 7, 7, /* 25-29 */
 224           7              /* 30    */
 225         };
 226
 227         if (size < 0 || size > PSZ_CIF || frames < 4 || frames > 25)
 228                 return -EINVAL;
 229         frames = frames2frames[frames];
 230         fps = frames2table[frames];
 231         pEntry = &Nala_table[size][fps];
 232         if (pEntry->alternate == 0)
 233                 return -EINVAL;
 234
 235         if (pEntry->compressed)
 236                 return -ENOENT; /* Not supported. */
 237
 238         memcpy(buf, pEntry->mode, 3);
 239         ret = send_video_command(pdev->udev, pdev->vendpoint, buf, 3);
 240         if (ret < 0) {
 241                 Debug("Failed to send video command... %d\n", ret);
 242                 return ret;
 243         }
 244         if (pEntry->compressed && pdev->vpalette != VIDEO_PALETTE_RAW)
 245          {
 246            switch(pdev->type) {
 247              case 645:
 248              case 646:
 249                pwc_dec1_init(pdev->type, pdev->release, buf, pdev->decompress_data);
 250                break;
 251
 252              case 675:
 253              case 680:
 254              case 690:
 255              case 720:
 256              case 730:
 257              case 740:
 258              case 750:
 259                pwc_dec23_init(pdev->type, pdev->release, buf, pdev->decompress_data);
 260                break;
 261            }
 262         }
 263
 264         pdev->cmd_len = 3;
 265         memcpy(pdev->cmd_buf, buf, 3);
 266
 267         /* Set various parameters */
 268         pdev->vframes = frames;
 269         pdev->vsize = size;
 270         pdev->valternate = pEntry->alternate;
 271         pdev->image = pwc_image_sizes[size];
 272         pdev->frame_size = (pdev->image.x * pdev->image.y * 3) / 2;
 273         if (pEntry->compressed) {
 274                 if (pdev->release < 5) { /* 4 fold compression */
 275                         pdev->vbandlength = 528;
 276                         pdev->frame_size /= 4;
 277                 }
 278                 else {
 279                         pdev->vbandlength = 704;
 280                         pdev->frame_size /= 3;
 281                 }
 282         }
 283         else
 284                 pdev->vbandlength = 0;
 285         return 0;
 286 }
 287
 288
 289 static inline int set_video_mode_Timon(struct pwc_device *pdev, int size, int frames, int compression, int snapshot)
 290 {
 291         unsigned char buf[13];
 292         const struct Timon_table_entry *pChoose;
 293         int ret, fps;
 294
 295         if (size >= PSZ_MAX || frames < 5 || frames > 30 || compression < 0 || compression > 3)
 296                 return -EINVAL;
 297         if (size == PSZ_VGA && frames > 15)
 298                 return -EINVAL;
 299         fps = (frames / 5) - 1;
 300
 301         /* Find a supported framerate with progressively higher compression ratios
 302            if the preferred ratio is not available.
 303         */
 304         pChoose = NULL;
 305         while (compression <= 3) {
 306            pChoose = &Timon_table[size][fps][compression];
 307            if (pChoose->alternate != 0)
 308              break;
 309            compression++;
 310         }
 311         if (pChoose == NULL || pChoose->alternate == 0)
 312                 return -ENOENT; /* Not supported. */
 313
 314         memcpy(buf, pChoose->mode, 13);
 315         if (snapshot)
 316                 buf[0] |= 0x80;
 317         ret = send_video_command(pdev->udev, pdev->vendpoint, buf, 13);
 318         if (ret < 0)
 319                 return ret;
 320
 321         if (pChoose->bandlength > 0 && pdev->vpalette != VIDEO_PALETTE_RAW)
 322            pwc_dec23_init(pdev->type, pdev->release, buf, pdev->decompress_data);
 323
 324         pdev->cmd_len = 13;
 325         memcpy(pdev->cmd_buf, buf, 13);
 326
 327         /* Set various parameters */
 328         pdev->vframes = frames;
 329         pdev->vsize = size;
 330         pdev->vsnapshot = snapshot;
 331         pdev->valternate = pChoose->alternate;
 332         pdev->image = pwc_image_sizes[size];
 333         pdev->vbandlength = pChoose->bandlength;
 334         if (pChoose->bandlength > 0)
 335                 pdev->frame_size = (pChoose->bandlength * pdev->image.y) / 4;
 336         else
 337                 pdev->frame_size = (pdev->image.x * pdev->image.y * 12) / 8;
 338         return 0;
 339 }
 340
 341
 342 static inline int set_video_mode_Kiara(struct pwc_device *pdev, int size, int frames, int compression, int snapshot)
 343 {
 344         const struct Kiara_table_entry *pChoose = NULL;
 345         int fps, ret;
 346         unsigned char buf[12];
 347         struct Kiara_table_entry RawEntry = {6, 773, 1272, {0xAD, 0xF4, 0x10, 0x27, 0xB6, 0x24, 0x96, 0x02, 0x30, 0x05, 0x03, 0x80}};
 348
 349         if (size >= PSZ_MAX || frames < 5 || frames > 30 || compression < 0 || compression > 3)
 350                 return -EINVAL;
 351         if (size == PSZ_VGA && frames > 15)
 352                 return -EINVAL;
 353         fps = (frames / 5) - 1;
 354
 355         /* special case: VGA @ 5 fps and snapshot is raw bayer mode */
 356         if (size == PSZ_VGA && frames == 5 && snapshot)
 357         {
 358                 /* Only available in case the raw palette is selected or
 359                    we have the decompressor available. This mode is
 360                    only available in compressed form
 361                 */
 362                 if (pdev->vpalette == VIDEO_PALETTE_RAW)
 363                 {
 364                         Info("Choosing VGA/5 BAYER mode (%d).\n", pdev->vpalette);
 365                         pChoose = &RawEntry;
 366                 }
 367                 else
 368                 {
 369                         Info("VGA/5 BAYER mode _must_ have a decompressor available, or use RAW palette.\n");
 370                 }
 371         }
 372         else
 373         {
 374                 /* Find a supported framerate with progressively higher compression ratios
 375                    if the preferred ratio is not available.
 376                    Skip this step when using RAW modes.
 377                 */
 378                 while (compression <= 3) {
 379                         pChoose = &Kiara_table[size][fps][compression];
 380                         if (pChoose->alternate != 0)
 381                                 break;
 382                         compression++;
 383                 }
 384         }
 385         if (pChoose == NULL || pChoose->alternate == 0)
 386                 return -ENOENT; /* Not supported. */
 387
 388         Debug("Using alternate setting %d.\n", pChoose->alternate);
 389
 390         /* usb_control_msg won't take staticly allocated arrays as argument?? */
 391         memcpy(buf, pChoose->mode, 12);
 392         if (snapshot)
 393                 buf[0] |= 0x80;
 394
 395         /* Firmware bug: video endpoint is 5, but commands are sent to endpoint 4 */
 396         ret = send_video_command(pdev->udev, 4 /* pdev->vendpoint */, buf, 12);
 397         if (ret < 0)
 398                 return ret;
 399
 400         if (pChoose->bandlength > 0 && pdev->vpalette != VIDEO_PALETTE_RAW)
 401           pwc_dec23_init(pdev->type, pdev->release, buf, pdev->decompress_data);
 402
 403         pdev->cmd_len = 12;
 404         memcpy(pdev->cmd_buf, buf, 12);
 405         /* All set and go */
 406         pdev->vframes = frames;
 407         pdev->vsize = size;
 408         pdev->vsnapshot = snapshot;
 409         pdev->valternate = pChoose->alternate;
 410         pdev->image = pwc_image_sizes[size];
 411         pdev->vbandlength = pChoose->bandlength;
 412         if (pdev->vbandlength > 0)
 413                 pdev->frame_size = (pdev->vbandlength * pdev->image.y) / 4;
 414         else
 415                 pdev->frame_size = (pdev->image.x * pdev->image.y * 12) / 8;
 416         return 0;
 417 }
 418
 419
 420
 421 static void pwc_set_image_buffer_size(struct pwc_device *pdev)
 422 {
 423         int i, factor = 0, filler = 0;
 424
 425         /* for PALETTE_YUV420P */
 426         switch(pdev->vpalette)
 427         {
 428         case VIDEO_PALETTE_YUV420P:
 429                 factor = 6;
 430                 filler = 128;
 431                 break;
 432         case VIDEO_PALETTE_RAW:
 433                 factor = 6; /* can be uncompressed YUV420P */
 434                 filler = 0;
 435                 break;
 436         }
 437
 438         /* Set sizes in bytes */
 439         pdev->image.size = pdev->image.x * pdev->image.y * factor / 4;
 440         pdev->view.size  = pdev->view.x  * pdev->view.y  * factor / 4;
 441
 442         /* Align offset, or you'll get some very weird results in
 443            YUV420 mode... x must be multiple of 4 (to get the Y's in
 444            place), and y even (or you'll mixup U & V). This is less of a
 445            problem for YUV420P.
 446          */
 447         pdev->offset.x = ((pdev->view.x - pdev->image.x) / 2) & 0xFFFC;
 448         pdev->offset.y = ((pdev->view.y - pdev->image.y) / 2) & 0xFFFE;
 449
 450         /* Fill buffers with gray or black */
 451         for (i = 0; i < MAX_IMAGES; i++) {
 452                 if (pdev->image_ptr[i] != NULL)
 453                         memset(pdev->image_ptr[i], filler, pdev->view.size);
 454         }
 455 }
 456
 457
 458
 459 /**
 460    @pdev: device structure
 461    @width: viewport width
 462    @height: viewport height
 463    @frame: framerate, in fps
 464    @compression: preferred compression ratio
 465    @snapshot: snapshot mode or streaming
 466  */
 467 int pwc_set_video_mode(struct pwc_device *pdev, int width, int height, int frames, int compression, int snapshot)
 468 {
 469         int ret, size;
 470
 471         Trace(TRACE_FLOW, "set_video_mode(%dx%d @ %d, palette %d).\n", width, height, frames, pdev->vpalette);
 472         size = pwc_decode_size(pdev, width, height);
 473         if (size < 0) {
 474                 Debug("Could not find suitable size.\n");
 475                 return -ERANGE;
 476         }
 477         Debug("decode_size = %d.\n", size);
 478
 479         ret = -EINVAL;
 480         switch(pdev->type) {
 481         case 645:
 482         case 646:
 483                 ret = set_video_mode_Nala(pdev, size, frames);
 484                 break;
 485
 486         case 675:
 487         case 680:
 488         case 690:
 489                 ret = set_video_mode_Timon(pdev, size, frames, compression, snapshot);
 490                 break;
 491
 492         case 720:
 493         case 730:
 494         case 740:
 495         case 750:
 496                 ret = set_video_mode_Kiara(pdev, size, frames, compression, snapshot);
 497                 break;
 498         }
 499         if (ret < 0) {
 500                 if (ret == -ENOENT)
 501                         Info("Video mode %s@%d fps is only supported with the decompressor module (pwcx).\n", size2name[size], frames);
 502                 else {
 503                         Err("Failed to set video mode %s@%d fps; return code = %d\n", size2name[size], frames, ret);
 504                 }
 505                 return ret;
 506         }
 507         pdev->view.x = width;
 508         pdev->view.y = height;
 509         pdev->frame_total_size = pdev->frame_size + pdev->frame_header_size + pdev->frame_trailer_size;
 510         pwc_set_image_buffer_size(pdev);
 511         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);
 512         return 0;
 513 }
 514
 515
 516 /* BRIGHTNESS */
 517
 518 int pwc_get_brightness(struct pwc_device *pdev)
 519 {
 520         char buf;
 521         int ret;
 522
 523         ret = RecvControlMsg(GET_LUM_CTL, BRIGHTNESS_FORMATTER, 1);
 524         if (ret < 0)
 525                 return ret;
 526         return buf << 9;
 527 }
 528
 529 int pwc_set_brightness(struct pwc_device *pdev, int value)
 530 {
 531         char buf;
 532
 533         if (value < 0)
 534                 value = 0;
 535         if (value > 0xffff)
 536                 value = 0xffff;
 537         buf = (value >> 9) & 0x7f;
 538         return SendControlMsg(SET_LUM_CTL, BRIGHTNESS_FORMATTER, 1);
 539 }
 540
 541 /* CONTRAST */
 542
 543 int pwc_get_contrast(struct pwc_device *pdev)
 544 {
 545         char buf;
 546         int ret;
 547
 548         ret = RecvControlMsg(GET_LUM_CTL, CONTRAST_FORMATTER, 1);
 549         if (ret < 0)
 550                 return ret;
 551         return buf << 10;
 552 }
 553
 554 int pwc_set_contrast(struct pwc_device *pdev, int value)
 555 {
 556         char buf;
 557
 558         if (value < 0)
 559                 value = 0;
 560         if (value > 0xffff)
 561                 value = 0xffff;
 562         buf = (value >> 10) & 0x3f;
 563         return SendControlMsg(SET_LUM_CTL, CONTRAST_FORMATTER, 1);
 564 }
 565
 566 /* GAMMA */
 567
 568 int pwc_get_gamma(struct pwc_device *pdev)
 569 {
 570         char buf;
 571         int ret;
 572
 573         ret = RecvControlMsg(GET_LUM_CTL, GAMMA_FORMATTER, 1);
 574         if (ret < 0)
 575                 return ret;
 576         return buf << 11;
 577 }
 578
 579 int pwc_set_gamma(struct pwc_device *pdev, int value)
 580 {
 581         char buf;
 582
 583         if (value < 0)
 584                 value = 0;
 585         if (value > 0xffff)
 586                 value = 0xffff;
 587         buf = (value >> 11) & 0x1f;
 588         return SendControlMsg(SET_LUM_CTL, GAMMA_FORMATTER, 1);
 589 }
 590
 591
 592 /* SATURATION */
 593
 594 int pwc_get_saturation(struct pwc_device *pdev)
 595 {
 596         char buf;
 597         int ret;
 598
 599         if (pdev->type < 675)
 600                 return -1;
 601         ret = RecvControlMsg(GET_CHROM_CTL, pdev->type < 730 ? SATURATION_MODE_FORMATTER2 : SATURATION_MODE_FORMATTER1, 1);
 602         if (ret < 0)
 603                 return ret;
 604         return 32768 + buf * 327;
 605 }
 606
 607 int pwc_set_saturation(struct pwc_device *pdev, int value)
 608 {
 609         char buf;
 610
 611         if (pdev->type < 675)
 612                 return -EINVAL;
 613         if (value < 0)
 614                 value = 0;
 615         if (value > 0xffff)
 616                 value = 0xffff;
 617         /* saturation ranges from -100 to +100 */
 618         buf = (value - 32768) / 327;
 619         return SendControlMsg(SET_CHROM_CTL, pdev->type < 730 ? SATURATION_MODE_FORMATTER2 : SATURATION_MODE_FORMATTER1, 1);
 620 }
 621
 622 /* AGC */
 623
 624 static inline int pwc_set_agc(struct pwc_device *pdev, int mode, int value)
 625 {
 626         char buf;
 627         int ret;
 628
 629         if (mode)
 630                 buf = 0x0; /* auto */
 631         else
 632                 buf = 0xff; /* fixed */
 633
 634         ret = SendControlMsg(SET_LUM_CTL, AGC_MODE_FORMATTER, 1);
 635
 636         if (!mode && ret >= 0) {
 637                 if (value < 0)
 638                         value = 0;
 639                 if (value > 0xffff)
 640                         value = 0xffff;
 641                 buf = (value >> 10) & 0x3F;
 642                 ret = SendControlMsg(SET_LUM_CTL, PRESET_AGC_FORMATTER, 1);
 643         }
 644         if (ret < 0)
 645                 return ret;
 646         return 0;
 647 }
 648
 649 static inline int pwc_get_agc(struct pwc_device *pdev, int *value)
 650 {
 651         unsigned char buf;
 652         int ret;
 653
 654         ret = RecvControlMsg(GET_LUM_CTL, AGC_MODE_FORMATTER, 1);
 655         if (ret < 0)
 656                 return ret;
 657
 658         if (buf != 0) { /* fixed */
 659                 ret = RecvControlMsg(GET_LUM_CTL, PRESET_AGC_FORMATTER, 1);
 660                 if (ret < 0)
 661                         return ret;
 662                 if (buf > 0x3F)
 663                         buf = 0x3F;
 664                 *value = (buf << 10);
 665         }
 666         else { /* auto */
 667                 ret = RecvControlMsg(GET_STATUS_CTL, READ_AGC_FORMATTER, 1);
 668                 if (ret < 0)
 669                         return ret;
 670                 /* Gah... this value ranges from 0x00 ... 0x9F */
 671                 if (buf > 0x9F)
 672                         buf = 0x9F;
 673                 *value = -(48 + buf * 409);
 674         }
 675
 676         return 0;
 677 }
 678
 679 static inline int pwc_set_shutter_speed(struct pwc_device *pdev, int mode, int value)
 680 {
 681         char buf[2];
 682         int speed, ret;
 683
 684
 685         if (mode)
 686                 buf[0] = 0x0;   /* auto */
 687         else
 688                 buf[0] = 0xff; /* fixed */
 689
 690         ret = SendControlMsg(SET_LUM_CTL, SHUTTER_MODE_FORMATTER, 1);
 691
 692         if (!mode && ret >= 0) {
 693                 if (value < 0)
 694                         value = 0;
 695                 if (value > 0xffff)
 696                         value = 0xffff;
 697                 switch(pdev->type) {
 698                 case 675:
 699                 case 680:
 700                 case 690:
 701                         /* speed ranges from 0x0 to 0x290 (656) */
 702                         speed = (value / 100);
 703                         buf[1] = speed >> 8;
 704                         buf[0] = speed & 0xff;
 705                         break;
 706                 case 720:
 707                 case 730:
 708                 case 740:
 709                 case 750:
 710                         /* speed seems to range from 0x0 to 0xff */
 711                         buf[1] = 0;
 712                         buf[0] = value >> 8;
 713                         break;
 714                 }
 715
 716                 ret = SendControlMsg(SET_LUM_CTL, PRESET_SHUTTER_FORMATTER, 2);
 717         }
 718         return ret;
 719 }
 720
 721
 722 /* POWER */
 723
 724 int pwc_camera_power(struct pwc_device *pdev, int power)
 725 {
 726         char buf;
 727
 728         if (pdev->type < 675 || (pdev->type < 730 && pdev->release < 6))
 729                 return 0;       /* Not supported by Nala or Timon < release 6 */
 730
 731         if (power)
 732                 buf = 0x00; /* active */
 733         else
 734                 buf = 0xFF; /* power save */
 735         return SendControlMsg(SET_STATUS_CTL, SET_POWER_SAVE_MODE_FORMATTER, 1);
 736 }
 737
 738
 739
 740 /* private calls */
 741
 742 static inline int pwc_restore_user(struct pwc_device *pdev)
 743 {
 744         char buf; /* dummy */
 745         return SendControlMsg(SET_STATUS_CTL, RESTORE_USER_DEFAULTS_FORMATTER, 0);
 746 }
 747
 748 static inline int pwc_save_user(struct pwc_device *pdev)
 749 {
 750         char buf; /* dummy */
 751         return SendControlMsg(SET_STATUS_CTL, SAVE_USER_DEFAULTS_FORMATTER, 0);
 752 }
 753
 754 static inline int pwc_restore_factory(struct pwc_device *pdev)
 755 {
 756         char buf; /* dummy */
 757         return SendControlMsg(SET_STATUS_CTL, RESTORE_FACTORY_DEFAULTS_FORMATTER, 0);
 758 }
 759
 760  /* ************************************************* */
 761  /* Patch by Alvarado: (not in the original version   */
 762
 763  /*
 764   * the camera recognizes modes from 0 to 4:
 765   *
 766   * 00: indoor (incandescant lighting)
 767   * 01: outdoor (sunlight)
 768   * 02: fluorescent lighting
 769   * 03: manual
 770   * 04: auto
 771   */
 772 static inline int pwc_set_awb(struct pwc_device *pdev, int mode)
 773 {
 774         char buf;
 775         int ret;
 776
 777         if (mode < 0)
 778             mode = 0;
 779
 780         if (mode > 4)
 781             mode = 4;
 782
 783         buf = mode & 0x07; /* just the lowest three bits */
 784
 785         ret = SendControlMsg(SET_CHROM_CTL, WB_MODE_FORMATTER, 1);
 786
 787         if (ret < 0)
 788                 return ret;
 789         return 0;
 790 }
 791
 792 static inline int pwc_get_awb(struct pwc_device *pdev)
 793 {
 794         unsigned char buf;
 795         int ret;
 796
 797         ret = RecvControlMsg(GET_CHROM_CTL, WB_MODE_FORMATTER, 1);
 798
 799         if (ret < 0)
 800                 return ret;
 801         return buf;
 802 }
 803
 804 static inline int pwc_set_red_gain(struct pwc_device *pdev, int value)
 805 {
 806         unsigned char buf;
 807
 808         if (value < 0)
 809                 value = 0;
 810         if (value > 0xffff)
 811                 value = 0xffff;
 812         /* only the msb is considered */
 813         buf = value >> 8;
 814         return SendControlMsg(SET_CHROM_CTL, PRESET_MANUAL_RED_GAIN_FORMATTER, 1);
 815 }
 816
 817 static inline int pwc_get_red_gain(struct pwc_device *pdev, int *value)
 818 {
 819         unsigned char buf;
 820         int ret;
 821
 822         ret = RecvControlMsg(GET_CHROM_CTL, PRESET_MANUAL_RED_GAIN_FORMATTER, 1);
 823         if (ret < 0)
 824             return ret;
 825         *value = buf << 8;
 826         return 0;
 827 }
 828
 829
 830 static inline int pwc_set_blue_gain(struct pwc_device *pdev, int value)
 831 {
 832         unsigned char buf;
 833
 834         if (value < 0)
 835                 value = 0;
 836         if (value > 0xffff)
 837                 value = 0xffff;
 838         /* only the msb is considered */
 839         buf = value >> 8;
 840         return SendControlMsg(SET_CHROM_CTL, PRESET_MANUAL_BLUE_GAIN_FORMATTER, 1);
 841 }
 842
 843 static inline int pwc_get_blue_gain(struct pwc_device *pdev, int *value)
 844 {
 845         unsigned char buf;
 846         int ret;
 847
 848         ret = RecvControlMsg(GET_CHROM_CTL, PRESET_MANUAL_BLUE_GAIN_FORMATTER, 1);
 849         if (ret < 0)
 850             return ret;
 851         *value = buf << 8;
 852         return 0;
 853 }
 854
 855
 856 /* The following two functions are different, since they only read the
 857    internal red/blue gains, which may be different from the manual
 858    gains set or read above.
 859  */
 860 static inline int pwc_read_red_gain(struct pwc_device *pdev, int *value)
 861 {
 862         unsigned char buf;
 863         int ret;
 864
 865         ret = RecvControlMsg(GET_STATUS_CTL, READ_RED_GAIN_FORMATTER, 1);
 866         if (ret < 0)
 867                 return ret;
 868         *value = buf << 8;
 869         return 0;
 870 }
 871
 872 static inline int pwc_read_blue_gain(struct pwc_device *pdev, int *value)
 873 {
 874         unsigned char buf;
 875         int ret;
 876
 877         ret = RecvControlMsg(GET_STATUS_CTL, READ_BLUE_GAIN_FORMATTER, 1);
 878         if (ret < 0)
 879                 return ret;
 880         *value = buf << 8;
 881         return 0;
 882 }
 883
 884
 885 static inline int pwc_set_wb_speed(struct pwc_device *pdev, int speed)
 886 {
 887         unsigned char buf;
 888
 889         /* useful range is 0x01..0x20 */
 890         buf = speed / 0x7f0;
 891         return SendControlMsg(SET_CHROM_CTL, AWB_CONTROL_SPEED_FORMATTER, 1);
 892 }
 893
 894 static inline int pwc_get_wb_speed(struct pwc_device *pdev, int *value)
 895 {
 896         unsigned char buf;
 897         int ret;
 898
 899         ret = RecvControlMsg(GET_CHROM_CTL, AWB_CONTROL_SPEED_FORMATTER, 1);
 900         if (ret < 0)
 901                 return ret;
 902         *value = buf * 0x7f0;
 903         return 0;
 904 }
 905
 906
 907 static inline int pwc_set_wb_delay(struct pwc_device *pdev, int delay)
 908 {
 909         unsigned char buf;
 910
 911         /* useful range is 0x01..0x3F */
 912         buf = (delay >> 10);
 913         return SendControlMsg(SET_CHROM_CTL, AWB_CONTROL_DELAY_FORMATTER, 1);
 914 }
 915
 916 static inline int pwc_get_wb_delay(struct pwc_device *pdev, int *value)
 917 {
 918         unsigned char buf;
 919         int ret;
 920
 921         ret = RecvControlMsg(GET_CHROM_CTL, AWB_CONTROL_DELAY_FORMATTER, 1);
 922         if (ret < 0)
 923                 return ret;
 924         *value = buf << 10;
 925         return 0;
 926 }
 927
 928
 929 int pwc_set_leds(struct pwc_device *pdev, int on_value, int off_value)
 930 {
 931         unsigned char buf[2];
 932
 933         if (pdev->type < 730)
 934                 return 0;
 935         on_value /= 100;
 936         off_value /= 100;
 937         if (on_value < 0)
 938                 on_value = 0;
 939         if (on_value > 0xff)
 940                 on_value = 0xff;
 941         if (off_value < 0)
 942                 off_value = 0;
 943         if (off_value > 0xff)
 944                 off_value = 0xff;
 945
 946         buf[0] = on_value;
 947         buf[1] = off_value;
 948
 949         return SendControlMsg(SET_STATUS_CTL, LED_FORMATTER, 2);
 950 }
 951
 952 static int pwc_get_leds(struct pwc_device *pdev, int *on_value, int *off_value)
 953 {
 954         unsigned char buf[2];
 955         int ret;
 956
 957         if (pdev->type < 730) {
 958                 *on_value = -1;
 959                 *off_value = -1;
 960                 return 0;
 961         }
 962
 963         ret = RecvControlMsg(GET_STATUS_CTL, LED_FORMATTER, 2);
 964         if (ret < 0)
 965                 return ret;
 966         *on_value = buf[0] * 100;
 967         *off_value = buf[1] * 100;
 968         return 0;
 969 }
 970
 971 static inline int pwc_set_contour(struct pwc_device *pdev, int contour)
 972 {
 973         unsigned char buf;
 974         int ret;
 975
 976         if (contour < 0)
 977                 buf = 0xff; /* auto contour on */
 978         else
 979                 buf = 0x0; /* auto contour off */
 980         ret = SendControlMsg(SET_LUM_CTL, AUTO_CONTOUR_FORMATTER, 1);
 981         if (ret < 0)
 982                 return ret;
 983
 984         if (contour < 0)
 985                 return 0;
 986         if (contour > 0xffff)
 987                 contour = 0xffff;
 988
 989         buf = (contour >> 10); /* contour preset is [0..3f] */
 990         ret = SendControlMsg(SET_LUM_CTL, PRESET_CONTOUR_FORMATTER, 1);
 991         if (ret < 0)
 992                 return ret;
 993         return 0;
 994 }
 995
 996 static inline int pwc_get_contour(struct pwc_device *pdev, int *contour)
 997 {
 998         unsigned char buf;
 999         int ret;
1000
1001         ret = RecvControlMsg(GET_LUM_CTL, AUTO_CONTOUR_FORMATTER, 1);
1002         if (ret < 0)
1003                 return ret;
1004
1005         if (buf == 0) {
1006                 /* auto mode off, query current preset value */
1007                 ret = RecvControlMsg(GET_LUM_CTL, PRESET_CONTOUR_FORMATTER, 1);
1008                 if (ret < 0)
1009                         return ret;
1010                 *contour = buf << 10;
1011         }
1012         else
1013                 *contour = -1;
1014         return 0;
1015 }
1016
1017
1018 static inline int pwc_set_backlight(struct pwc_device *pdev, int backlight)
1019 {
1020         unsigned char buf;
1021
1022         if (backlight)
1023                 buf = 0xff;
1024         else
1025                 buf = 0x0;
1026         return SendControlMsg(SET_LUM_CTL, BACK_LIGHT_COMPENSATION_FORMATTER, 1);
1027 }
1028
1029 static inline int pwc_get_backlight(struct pwc_device *pdev, int *backlight)
1030 {
1031         int ret;
1032         unsigned char buf;
1033
1034         ret = RecvControlMsg(GET_LUM_CTL, BACK_LIGHT_COMPENSATION_FORMATTER, 1);
1035         if (ret < 0)
1036                 return ret;
1037         *backlight = buf;
1038         return 0;
1039 }
1040
1041
1042 static inline int pwc_set_flicker(struct pwc_device *pdev, int flicker)
1043 {
1044         unsigned char buf;
1045
1046         if (flicker)
1047                 buf = 0xff;
1048         else
1049                 buf = 0x0;
1050         return SendControlMsg(SET_LUM_CTL, FLICKERLESS_MODE_FORMATTER, 1);
1051 }
1052
1053 static inline int pwc_get_flicker(struct pwc_device *pdev, int *flicker)
1054 {
1055         int ret;
1056         unsigned char buf;
1057
1058         ret = RecvControlMsg(GET_LUM_CTL, FLICKERLESS_MODE_FORMATTER, 1);
1059         if (ret < 0)
1060                 return ret;
1061         *flicker = buf;
1062         return 0;
1063 }
1064
1065
1066 static inline int pwc_set_dynamic_noise(struct pwc_device *pdev, int noise)
1067 {
1068         unsigned char buf;
1069
1070         if (noise < 0)
1071                 noise = 0;
1072         if (noise > 3)
1073                 noise = 3;
1074         buf = noise;
1075         return SendControlMsg(SET_LUM_CTL, DYNAMIC_NOISE_CONTROL_FORMATTER, 1);
1076 }
1077
1078 static inline int pwc_get_dynamic_noise(struct pwc_device *pdev, int *noise)
1079 {
1080         int ret;
1081         unsigned char buf;
1082
1083         ret = RecvControlMsg(GET_LUM_CTL, DYNAMIC_NOISE_CONTROL_FORMATTER, 1);
1084         if (ret < 0)
1085                 return ret;
1086         *noise = buf;
1087         return 0;
1088 }
1089
1090 static int pwc_mpt_reset(struct pwc_device *pdev, int flags)
1091 {
1092         unsigned char buf;
1093
1094         buf = flags & 0x03; // only lower two bits are currently used
1095         return SendControlMsg(SET_MPT_CTL, PT_RESET_CONTROL_FORMATTER, 1);
1096 }
1097
1098 static inline int pwc_mpt_set_angle(struct pwc_device *pdev, int pan, int tilt)
1099 {
1100         unsigned char buf[4];
1101
1102         /* set new relative angle; angles are expressed in degrees * 100,
1103            but cam as .5 degree resolution, hence divide by 200. Also
1104            the angle must be multiplied by 64 before it's send to
1105            the cam (??)
1106          */
1107         pan  =  64 * pan  / 100;
1108         tilt = -64 * tilt / 100; /* positive tilt is down, which is not what the user would expect */
1109         buf[0] = pan & 0xFF;
1110         buf[1] = (pan >> 8) & 0xFF;
1111         buf[2] = tilt & 0xFF;
1112         buf[3] = (tilt >> 8) & 0xFF;
1113         return SendControlMsg(SET_MPT_CTL, PT_RELATIVE_CONTROL_FORMATTER, 4);
1114 }
1115
1116 static inline int pwc_mpt_get_status(struct pwc_device *pdev, struct pwc_mpt_status *status)
1117 {
1118         int ret;
1119         unsigned char buf[5];
1120
1121         ret = RecvControlMsg(GET_MPT_CTL, PT_STATUS_FORMATTER, 5);
1122         if (ret < 0)
1123                 return ret;
1124         status->status = buf[0] & 0x7; // 3 bits are used for reporting
1125         status->time_pan = (buf[1] << 8) + buf[2];
1126         status->time_tilt = (buf[3] << 8) + buf[4];
1127         return 0;
1128 }
1129
1130
1131 int pwc_get_cmos_sensor(struct pwc_device *pdev, int *sensor)
1132 {
1133         unsigned char buf;
1134         int ret = -1, request;
1135
1136         if (pdev->type < 675)
1137                 request = SENSOR_TYPE_FORMATTER1;
1138         else if (pdev->type < 730)
1139                 return -1; /* The Vesta series doesn't have this call */
1140         else
1141                 request = SENSOR_TYPE_FORMATTER2;
1142
1143         ret = RecvControlMsg(GET_STATUS_CTL, request, 1);
1144         if (ret < 0)
1145                 return ret;
1146         if (pdev->type < 675)
1147                 *sensor = buf | 0x100;
1148         else
1149                 *sensor = buf;
1150         return 0;
1151 }
1152
1153
1154  /* End of Add-Ons                                    */
1155  /* ************************************************* */
1156
1157 /* Linux 2.5.something and 2.6 pass direct pointers to arguments of
1158    ioctl() calls. With 2.4, you have to do tedious copy_from_user()
1159    and copy_to_user() calls. With these macros we circumvent this,
1160    and let me maintain only one source file. The functionality is
1161    exactly the same otherwise.
1162  */
1163
1164 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)
1165
1166 /* define local variable for arg */
1167 #define ARG_DEF(ARG_type, ARG_name)\
1168         ARG_type *ARG_name = arg;
1169 /* copy arg to local variable */
1170 #define ARG_IN(ARG_name) /* nothing */
1171 /* argument itself (referenced) */
1172 #define ARGR(ARG_name) (*ARG_name)
1173 /* argument address */
1174 #define ARGA(ARG_name) ARG_name
1175 /* copy local variable to arg */
1176 #define ARG_OUT(ARG_name) /* nothing */
1177
1178 #else
1179
1180 #define ARG_DEF(ARG_type, ARG_name)\
1181         ARG_type ARG_name;
1182 #define ARG_IN(ARG_name)\
1183         if (copy_from_user(&ARG_name, arg, sizeof(ARG_name))) {\
1184                 ret = -EFAULT;\
1185                 break;\
1186         }
1187 #define ARGR(ARG_name) ARG_name
1188 #define ARGA(ARG_name) &ARG_name
1189 #define ARG_OUT(ARG_name)\
1190         if (copy_to_user(arg, &ARG_name, sizeof(ARG_name))) {\
1191                 ret = -EFAULT;\
1192                 break;\
1193         }
1194
1195 #endif
1196
1197 int pwc_ioctl(struct pwc_device *pdev, unsigned int cmd, void *arg)
1198 {
1199         int ret = 0;
1200
1201         switch(cmd) {
1202         case VIDIOCPWCRUSER:
1203         {
1204                 if (pwc_restore_user(pdev))
1205                         ret = -EINVAL;
1206                 break;
1207         }
1208
1209         case VIDIOCPWCSUSER:
1210         {
1211                 if (pwc_save_user(pdev))
1212                         ret = -EINVAL;
1213                 break;
1214         }
1215
1216         case VIDIOCPWCFACTORY:
1217         {
1218                 if (pwc_restore_factory(pdev))
1219                         ret = -EINVAL;
1220                 break;
1221         }
1222
1223         case VIDIOCPWCSCQUAL:
1224         {
1225                 ARG_DEF(int, qual)
1226
1227                 ARG_IN(qual)
1228                 if (ARGR(qual) < 0 || ARGR(qual) > 3)
1229                         ret = -EINVAL;
1230                 else
1231                         ret = pwc_try_video_mode(pdev, pdev->view.x, pdev->view.y, pdev->vframes, ARGR(qual), pdev->vsnapshot);
1232                 if (ret >= 0)
1233                         pdev->vcompression = ARGR(qual);
1234                 break;
1235         }
1236
1237         case VIDIOCPWCGCQUAL:
1238         {
1239                 ARG_DEF(int, qual)
1240
1241                 ARGR(qual) = pdev->vcompression;
1242                 ARG_OUT(qual)
1243                 break;
1244         }
1245
1246         case VIDIOCPWCPROBE:
1247         {
1248                 ARG_DEF(struct pwc_probe, probe)
1249
1250                 strcpy(ARGR(probe).name, pdev->vdev->name);
1251                 ARGR(probe).type = pdev->type;
1252                 ARG_OUT(probe)
1253                 break;
1254         }
1255
1256         case VIDIOCPWCGSERIAL:
1257         {
1258                 ARG_DEF(struct pwc_serial, serial)
1259
1260                 strcpy(ARGR(serial).serial, pdev->serial);
1261                 ARG_OUT(serial)
1262                 break;
1263         }
1264
1265         case VIDIOCPWCSAGC:
1266         {
1267                 ARG_DEF(int, agc)
1268
1269                 ARG_IN(agc)
1270                 if (pwc_set_agc(pdev, ARGR(agc) < 0 ? 1 : 0, ARGR(agc)))
1271                         ret = -EINVAL;
1272                 break;
1273         }
1274
1275         case VIDIOCPWCGAGC:
1276         {
1277                 ARG_DEF(int, agc)
1278
1279                 if (pwc_get_agc(pdev, ARGA(agc)))
1280                         ret = -EINVAL;
1281                 ARG_OUT(agc)
1282                 break;
1283         }
1284
1285         case VIDIOCPWCSSHUTTER:
1286         {
1287                 ARG_DEF(int, shutter_speed)
1288
1289                 ARG_IN(shutter_speed)
1290                 ret = pwc_set_shutter_speed(pdev, ARGR(shutter_speed) < 0 ? 1 : 0, ARGR(shutter_speed));
1291                 break;
1292         }
1293
1294         case VIDIOCPWCSAWB:
1295         {
1296                 ARG_DEF(struct pwc_whitebalance, wb)
1297
1298                 ARG_IN(wb)
1299                 ret = pwc_set_awb(pdev, ARGR(wb).mode);
1300                 if (ret >= 0 && ARGR(wb).mode == PWC_WB_MANUAL) {
1301                         pwc_set_red_gain(pdev, ARGR(wb).manual_red);
1302                         pwc_set_blue_gain(pdev, ARGR(wb).manual_blue);
1303                 }
1304                 break;
1305         }
1306
1307         case VIDIOCPWCGAWB:
1308         {
1309                 ARG_DEF(struct pwc_whitebalance, wb)
1310
1311                 memset(ARGA(wb), 0, sizeof(struct pwc_whitebalance));
1312                 ARGR(wb).mode = pwc_get_awb(pdev);
1313                 if (ARGR(wb).mode < 0)
1314                         ret = -EINVAL;
1315                 else {
1316                         if (ARGR(wb).mode == PWC_WB_MANUAL) {
1317                                 ret = pwc_get_red_gain(pdev, &ARGR(wb).manual_red);
1318                                 if (ret < 0)
1319                                         break;
1320                                 ret = pwc_get_blue_gain(pdev, &ARGR(wb).manual_blue);
1321                                 if (ret < 0)
1322                                         break;
1323                         }
1324                         if (ARGR(wb).mode == PWC_WB_AUTO) {
1325                                 ret = pwc_read_red_gain(pdev, &ARGR(wb).read_red);
1326                                 if (ret < 0)
1327                                         break;
1328                                 ret =pwc_read_blue_gain(pdev, &ARGR(wb).read_blue);
1329                                 if (ret < 0)
1330                                         break;
1331                         }
1332                 }
1333                 ARG_OUT(wb)
1334                 break;
1335         }
1336
1337         case VIDIOCPWCSAWBSPEED:
1338         {
1339                 ARG_DEF(struct pwc_wb_speed, wbs)
1340
1341                 if (ARGR(wbs).control_speed > 0) {
1342                         ret = pwc_set_wb_speed(pdev, ARGR(wbs).control_speed);
1343                 }
1344                 if (ARGR(wbs).control_delay > 0) {
1345                         ret = pwc_set_wb_delay(pdev, ARGR(wbs).control_delay);
1346                 }
1347                 break;
1348         }
1349
1350         case VIDIOCPWCGAWBSPEED:
1351         {
1352                 ARG_DEF(struct pwc_wb_speed, wbs)
1353
1354                 ret = pwc_get_wb_speed(pdev, &ARGR(wbs).control_speed);
1355                 if (ret < 0)
1356                         break;
1357                 ret = pwc_get_wb_delay(pdev, &ARGR(wbs).control_delay);
1358                 if (ret < 0)
1359                         break;
1360                 ARG_OUT(wbs)
1361                 break;
1362         }
1363
1364         case VIDIOCPWCSLED:
1365         {
1366                 ARG_DEF(struct pwc_leds, leds)
1367
1368                 ARG_IN(leds)
1369                 ret = pwc_set_leds(pdev, ARGR(leds).led_on, ARGR(leds).led_off);
1370                 break;
1371         }
1372
1373
1374         case VIDIOCPWCGLED:
1375         {
1376                 ARG_DEF(struct pwc_leds, leds)
1377
1378                 ret = pwc_get_leds(pdev, &ARGR(leds).led_on, &ARGR(leds).led_off);
1379                 ARG_OUT(leds)
1380                 break;
1381         }
1382
1383         case VIDIOCPWCSCONTOUR:
1384         {
1385                 ARG_DEF(int, contour)
1386
1387                 ARG_IN(contour)
1388                 ret = pwc_set_contour(pdev, ARGR(contour));
1389                 break;
1390         }
1391
1392         case VIDIOCPWCGCONTOUR:
1393         {
1394                 ARG_DEF(int, contour)
1395
1396                 ret = pwc_get_contour(pdev, ARGA(contour));
1397                 ARG_OUT(contour)
1398                 break;
1399         }
1400
1401         case VIDIOCPWCSBACKLIGHT:
1402         {
1403                 ARG_DEF(int, backlight)
1404
1405                 ARG_IN(backlight)
1406                 ret = pwc_set_backlight(pdev, ARGR(backlight));
1407                 break;
1408         }
1409
1410         case VIDIOCPWCGBACKLIGHT:
1411         {
1412                 ARG_DEF(int, backlight)
1413
1414                 ret = pwc_get_backlight(pdev, ARGA(backlight));
1415                 ARG_OUT(backlight)
1416                 break;
1417         }
1418
1419         case VIDIOCPWCSFLICKER:
1420         {
1421                 ARG_DEF(int, flicker)
1422
1423                 ARG_IN(flicker)
1424                 ret = pwc_set_flicker(pdev, ARGR(flicker));
1425                 break;
1426         }
1427
1428         case VIDIOCPWCGFLICKER:
1429         {
1430                 ARG_DEF(int, flicker)
1431
1432                 ret = pwc_get_flicker(pdev, ARGA(flicker));
1433                 ARG_OUT(flicker)
1434                 break;
1435         }
1436
1437         case VIDIOCPWCSDYNNOISE:
1438         {
1439                 ARG_DEF(int, dynnoise)
1440
1441                 ARG_IN(dynnoise)
1442                 ret = pwc_set_dynamic_noise(pdev, ARGR(dynnoise));
1443                 break;
1444         }
1445
1446         case VIDIOCPWCGDYNNOISE:
1447         {
1448                 ARG_DEF(int, dynnoise)
1449
1450                 ret = pwc_get_dynamic_noise(pdev, ARGA(dynnoise));
1451                 ARG_OUT(dynnoise);
1452                 break;
1453         }
1454
1455         case VIDIOCPWCGREALSIZE:
1456         {
1457                 ARG_DEF(struct pwc_imagesize, size)
1458
1459                 ARGR(size).width = pdev->image.x;
1460                 ARGR(size).height = pdev->image.y;
1461                 ARG_OUT(size)
1462                 break;
1463         }
1464
1465         case VIDIOCPWCMPTRESET:
1466         {
1467                 if (pdev->features & FEATURE_MOTOR_PANTILT)
1468                 {
1469                         ARG_DEF(int, flags)
1470
1471                         ARG_IN(flags)
1472                         ret = pwc_mpt_reset(pdev, ARGR(flags));
1473                         if (ret >= 0)
1474                         {
1475                                 pdev->pan_angle = 0;
1476                                 pdev->tilt_angle = 0;
1477                         }
1478                 }
1479                 else
1480                 {
1481                         ret = -ENXIO;
1482                 }
1483                 break;
1484         }
1485
1486         case VIDIOCPWCMPTGRANGE:
1487         {
1488                 if (pdev->features & FEATURE_MOTOR_PANTILT)
1489                 {
1490                         ARG_DEF(struct pwc_mpt_range, range)
1491
1492                         ARGR(range) = pdev->angle_range;
1493                         ARG_OUT(range)
1494                 }
1495                 else
1496                 {
1497                         ret = -ENXIO;
1498                 }
1499                 break;
1500         }
1501
1502         case VIDIOCPWCMPTSANGLE:
1503         {
1504                 int new_pan, new_tilt;
1505
1506                 if (pdev->features & FEATURE_MOTOR_PANTILT)
1507                 {
1508                         ARG_DEF(struct pwc_mpt_angles, angles)
1509
1510                         ARG_IN(angles)
1511                         /* The camera can only set relative angles, so
1512                            do some calculations when getting an absolute angle .
1513                          */
1514                         if (ARGR(angles).absolute)
1515                         {
1516                                 new_pan  = ARGR(angles).pan;
1517                                 new_tilt = ARGR(angles).tilt;
1518                         }
1519                         else
1520                         {
1521                                 new_pan  = pdev->pan_angle  + ARGR(angles).pan;
1522                                 new_tilt = pdev->tilt_angle + ARGR(angles).tilt;
1523                         }
1524                         /* check absolute ranges */
1525                         if (new_pan  < pdev->angle_range.pan_min  ||
1526                             new_pan  > pdev->angle_range.pan_max  ||
1527                             new_tilt < pdev->angle_range.tilt_min ||
1528                             new_tilt > pdev->angle_range.tilt_max)
1529                         {
1530                                 ret = -ERANGE;
1531                         }
1532                         else
1533                         {
1534                                 /* go to relative range, check again */
1535                                 new_pan  -= pdev->pan_angle;
1536                                 new_tilt -= pdev->tilt_angle;
1537                                 /* angles are specified in degrees * 100, thus the limit = 36000 */
1538                                 if (new_pan < -36000 || new_pan > 36000 || new_tilt < -36000 || new_tilt > 36000)
1539                                         ret = -ERANGE;
1540                         }
1541                         if (ret == 0) /* no errors so far */
1542                         {
1543                                 ret = pwc_mpt_set_angle(pdev, new_pan, new_tilt);
1544                                 if (ret >= 0)
1545                                 {
1546                                         pdev->pan_angle  += new_pan;
1547                                         pdev->tilt_angle += new_tilt;
1548                                 }
1549                                 if (ret == -EPIPE) /* stall -> out of range */
1550                                         ret = -ERANGE;
1551                         }
1552                 }
1553                 else
1554                 {
1555                         ret = -ENXIO;
1556                 }
1557                 break;
1558         }
1559
1560         case VIDIOCPWCMPTGANGLE:
1561         {
1562
1563                 if (pdev->features & FEATURE_MOTOR_PANTILT)
1564                 {
1565                         ARG_DEF(struct pwc_mpt_angles, angles)
1566
1567                         ARGR(angles).absolute = 1;
1568                         ARGR(angles).pan  = pdev->pan_angle;
1569                         ARGR(angles).tilt = pdev->tilt_angle;
1570                         ARG_OUT(angles)
1571                 }
1572                 else
1573                 {
1574                         ret = -ENXIO;
1575                 }
1576                 break;
1577         }
1578
1579         case VIDIOCPWCMPTSTATUS:
1580         {
1581                 if (pdev->features & FEATURE_MOTOR_PANTILT)
1582                 {
1583                         ARG_DEF(struct pwc_mpt_status, status)
1584
1585                         ret = pwc_mpt_get_status(pdev, ARGA(status));
1586                         ARG_OUT(status)
1587                 }
1588                 else
1589                 {
1590                         ret = -ENXIO;
1591                 }
1592                 break;
1593         }
1594
1595         case VIDIOCPWCGVIDCMD:
1596         {
1597                 ARG_DEF(struct pwc_video_command, cmd);
1598
1599                 ARGR(cmd).type = pdev->type;
1600                 ARGR(cmd).release = pdev->release;
1601                 ARGR(cmd).command_len = pdev->cmd_len;
1602                 memcpy(&ARGR(cmd).command_buf, pdev->cmd_buf, pdev->cmd_len);
1603                 ARGR(cmd).bandlength = pdev->vbandlength;
1604                 ARGR(cmd).frame_size = pdev->frame_size;
1605                 ARG_OUT(cmd)
1606                 break;
1607         }
1608        /*
1609         case VIDIOCPWCGVIDTABLE:
1610         {
1611                 ARG_DEF(struct pwc_table_init_buffer, table);
1612                 ARGR(table).len = pdev->cmd_len;
1613                 memcpy(&ARGR(table).buffer, pdev->decompress_data, pdev->decompressor->table_size);
1614                 ARG_OUT(table)
1615                 break;
1616         }
1617         */
1618
1619         default:
1620                 ret = -ENOIOCTLCMD;
1621                 break;
1622         }
1623
1624         if (ret > 0)
1625                 return 0;
1626         return ret;
1627 }
1628
1629
1630