drivers/media/video/pwc/pwc-v4l.c

   1 /* Linux driver for Philips webcam
   2    USB and Video4Linux interface part.
   3    (C) 1999-2004 Nemosoft Unv.
   4    (C) 2004-2006 Luc Saillard (luc@saillard.org)
   5    (C) 2011 Hans de Goede <hdegoede@redhat.com>
   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    The decompression routines have been implemented by reverse-engineering the
  11    Nemosoft binary pwcx module. Caveat emptor.
  12
  13    This program is free software; you can redistribute it and/or modify
  14    it under the terms of the GNU General Public License as published by
  15    the Free Software Foundation; either version 2 of the License, or
  16    (at your option) any later version.
  17
  18    This program is distributed in the hope that it will be useful,
  19    but WITHOUT ANY WARRANTY; without even the implied warranty of
  20    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21    GNU General Public License for more details.
  22
  23    You should have received a copy of the GNU General Public License
  24    along with this program; if not, write to the Free Software
  25    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  26
  27 */
  28
  29 #include <linux/errno.h>
  30 #include <linux/init.h>
  31 #include <linux/mm.h>
  32 #include <linux/module.h>
  33 #include <linux/poll.h>
  34 #include <linux/vmalloc.h>
  35 #include <linux/jiffies.h>
  36 #include <asm/io.h>
  37
  38 #include "pwc.h"
  39
  40 #define PWC_CID_CUSTOM(ctrl) ((V4L2_CID_USER_BASE | 0xf000) + custom_ ## ctrl)
  41
  42 static int pwc_g_volatile_ctrl(struct v4l2_ctrl *ctrl);
  43 static int pwc_s_ctrl(struct v4l2_ctrl *ctrl);
  44
  45 static const struct v4l2_ctrl_ops pwc_ctrl_ops = {
  46         .g_volatile_ctrl = pwc_g_volatile_ctrl,
  47         .s_ctrl = pwc_s_ctrl,
  48 };
  49
  50 enum { awb_indoor, awb_outdoor, awb_fl, awb_manual, awb_auto };
  51 enum { custom_autocontour, custom_contour, custom_noise_reduction,
  52         custom_save_user, custom_restore_user, custom_restore_factory };
  53
  54 const char * const pwc_auto_whitebal_qmenu[] = {
  55         "Indoor (Incandescant Lighting) Mode",
  56         "Outdoor (Sunlight) Mode",
  57         "Indoor (Fluorescent Lighting) Mode",
  58         "Manual Mode",
  59         "Auto Mode",
  60         NULL
  61 };
  62
  63 static const struct v4l2_ctrl_config pwc_auto_white_balance_cfg = {
  64         .ops    = &pwc_ctrl_ops,
  65         .id     = V4L2_CID_AUTO_WHITE_BALANCE,
  66         .type   = V4L2_CTRL_TYPE_MENU,
  67         .max    = awb_auto,
  68         .qmenu  = pwc_auto_whitebal_qmenu,
  69 };
  70
  71 static const struct v4l2_ctrl_config pwc_autocontour_cfg = {
  72         .ops    = &pwc_ctrl_ops,
  73         .id     = PWC_CID_CUSTOM(autocontour),
  74         .type   = V4L2_CTRL_TYPE_BOOLEAN,
  75         .name   = "Auto contour",
  76         .min    = 0,
  77         .max    = 1,
  78         .step   = 1,
  79 };
  80
  81 static const struct v4l2_ctrl_config pwc_contour_cfg = {
  82         .ops    = &pwc_ctrl_ops,
  83         .id     = PWC_CID_CUSTOM(contour),
  84         .type   = V4L2_CTRL_TYPE_INTEGER,
  85         .name   = "Contour",
  86         .flags  = V4L2_CTRL_FLAG_SLIDER,
  87         .min    = 0,
  88         .max    = 63,
  89         .step   = 1,
  90 };
  91
  92 static const struct v4l2_ctrl_config pwc_backlight_cfg = {
  93         .ops    = &pwc_ctrl_ops,
  94         .id     = V4L2_CID_BACKLIGHT_COMPENSATION,
  95         .type   = V4L2_CTRL_TYPE_BOOLEAN,
  96         .min    = 0,
  97         .max    = 1,
  98         .step   = 1,
  99 };
 100
 101 static const struct v4l2_ctrl_config pwc_flicker_cfg = {
 102         .ops    = &pwc_ctrl_ops,
 103         .id     = V4L2_CID_BAND_STOP_FILTER,
 104         .type   = V4L2_CTRL_TYPE_BOOLEAN,
 105         .min    = 0,
 106         .max    = 1,
 107         .step   = 1,
 108 };
 109
 110 static const struct v4l2_ctrl_config pwc_noise_reduction_cfg = {
 111         .ops    = &pwc_ctrl_ops,
 112         .id     = PWC_CID_CUSTOM(noise_reduction),
 113         .type   = V4L2_CTRL_TYPE_INTEGER,
 114         .name   = "Dynamic Noise Reduction",
 115         .min    = 0,
 116         .max    = 3,
 117         .step   = 1,
 118 };
 119
 120 static const struct v4l2_ctrl_config pwc_save_user_cfg = {
 121         .ops    = &pwc_ctrl_ops,
 122         .id     = PWC_CID_CUSTOM(save_user),
 123         .type   = V4L2_CTRL_TYPE_BUTTON,
 124         .name    = "Save User Settings",
 125 };
 126
 127 static const struct v4l2_ctrl_config pwc_restore_user_cfg = {
 128         .ops    = &pwc_ctrl_ops,
 129         .id     = PWC_CID_CUSTOM(restore_user),
 130         .type   = V4L2_CTRL_TYPE_BUTTON,
 131         .name    = "Restore User Settings",
 132 };
 133
 134 static const struct v4l2_ctrl_config pwc_restore_factory_cfg = {
 135         .ops    = &pwc_ctrl_ops,
 136         .id     = PWC_CID_CUSTOM(restore_factory),
 137         .type   = V4L2_CTRL_TYPE_BUTTON,
 138         .name    = "Restore Factory Settings",
 139 };
 140
 141 int pwc_init_controls(struct pwc_device *pdev)
 142 {
 143         struct v4l2_ctrl_handler *hdl;
 144         struct v4l2_ctrl_config cfg;
 145         int r, def;
 146
 147         hdl = &pdev->ctrl_handler;
 148         r = v4l2_ctrl_handler_init(hdl, 20);
 149         if (r)
 150                 return r;
 151
 152         /* Brightness, contrast, saturation, gamma */
 153         r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, BRIGHTNESS_FORMATTER, &def);
 154         if (r || def > 127)
 155                 def = 63;
 156         pdev->brightness = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,
 157                                 V4L2_CID_BRIGHTNESS, 0, 127, 1, def);
 158
 159         r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, CONTRAST_FORMATTER, &def);
 160         if (r || def > 63)
 161                 def = 31;
 162         pdev->contrast = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,
 163                                 V4L2_CID_CONTRAST, 0, 63, 1, def);
 164
 165         if (pdev->type >= 675) {
 166                 if (pdev->type < 730)
 167                         pdev->saturation_fmt = SATURATION_MODE_FORMATTER2;
 168                 else
 169                         pdev->saturation_fmt = SATURATION_MODE_FORMATTER1;
 170                 r = pwc_get_s8_ctrl(pdev, GET_CHROM_CTL, pdev->saturation_fmt,
 171                                     &def);
 172                 if (r || def < -100 || def > 100)
 173                         def = 0;
 174                 pdev->saturation = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,
 175                                       V4L2_CID_SATURATION, -100, 100, 1, def);
 176         }
 177
 178         r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, GAMMA_FORMATTER, &def);
 179         if (r || def > 31)
 180                 def = 15;
 181         pdev->gamma = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,
 182                                 V4L2_CID_GAMMA, 0, 31, 1, def);
 183
 184         /* auto white balance, red gain, blue gain */
 185         r = pwc_get_u8_ctrl(pdev, GET_CHROM_CTL, WB_MODE_FORMATTER, &def);
 186         if (r || def > awb_auto)
 187                 def = awb_auto;
 188         cfg = pwc_auto_white_balance_cfg;
 189         cfg.name = v4l2_ctrl_get_name(cfg.id);
 190         cfg.def = def;
 191         pdev->auto_white_balance = v4l2_ctrl_new_custom(hdl, &cfg, NULL);
 192         /* check auto controls to avoid NULL deref in v4l2_ctrl_auto_cluster */
 193         if (!pdev->auto_white_balance)
 194                 return hdl->error;
 195
 196         r = pwc_get_u8_ctrl(pdev, GET_CHROM_CTL,
 197                             PRESET_MANUAL_RED_GAIN_FORMATTER, &def);
 198         if (r)
 199                 def = 127;
 200         pdev->red_balance = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,
 201                                 V4L2_CID_RED_BALANCE, 0, 255, 1, def);
 202
 203         r = pwc_get_u8_ctrl(pdev, GET_CHROM_CTL,
 204                             PRESET_MANUAL_BLUE_GAIN_FORMATTER, &def);
 205         if (r)
 206                 def = 127;
 207         pdev->blue_balance = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,
 208                                 V4L2_CID_BLUE_BALANCE, 0, 255, 1, def);
 209
 210         v4l2_ctrl_auto_cluster(3, &pdev->auto_white_balance, awb_manual, true);
 211
 212         /* autogain, gain */
 213         r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, AGC_MODE_FORMATTER, &def);
 214         if (r || (def != 0 && def != 0xff))
 215                 def = 0;
 216         /* Note a register value if 0 means auto gain is on */
 217         pdev->autogain = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,
 218                                 V4L2_CID_AUTOGAIN, 0, 1, 1, def == 0);
 219         if (!pdev->autogain)
 220                 return hdl->error;
 221
 222         r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, PRESET_AGC_FORMATTER, &def);
 223         if (r || def > 63)
 224                 def = 31;
 225         pdev->gain = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,
 226                                 V4L2_CID_GAIN, 0, 63, 1, def);
 227
 228         /* auto exposure, exposure */
 229         if (DEVICE_USE_CODEC2(pdev->type)) {
 230                 r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, SHUTTER_MODE_FORMATTER,
 231                                     &def);
 232                 if (r || (def != 0 && def != 0xff))
 233                         def = 0;
 234                 /*
 235                  * def = 0 auto, def = ff manual
 236                  * menu idx 0 = auto, idx 1 = manual
 237                  */
 238                 pdev->exposure_auto = v4l2_ctrl_new_std_menu(hdl,
 239                                         &pwc_ctrl_ops,
 240                                         V4L2_CID_EXPOSURE_AUTO,
 241                                         1, 0, def != 0);
 242                 if (!pdev->exposure_auto)
 243                         return hdl->error;
 244
 245                 /* GET_LUM_CTL, PRESET_SHUTTER_FORMATTER is unreliable */
 246                 r = pwc_get_u16_ctrl(pdev, GET_STATUS_CTL,
 247                                      READ_SHUTTER_FORMATTER, &def);
 248                 if (r || def > 655)
 249                         def = 655;
 250                 pdev->exposure = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,
 251                                         V4L2_CID_EXPOSURE, 0, 655, 1, def);
 252                 /* CODEC2: separate auto gain & auto exposure */
 253                 v4l2_ctrl_auto_cluster(2, &pdev->autogain, 0, true);
 254                 v4l2_ctrl_auto_cluster(2, &pdev->exposure_auto,
 255                                        V4L2_EXPOSURE_MANUAL, true);
 256         } else if (DEVICE_USE_CODEC3(pdev->type)) {
 257                 /* GET_LUM_CTL, PRESET_SHUTTER_FORMATTER is unreliable */
 258                 r = pwc_get_u16_ctrl(pdev, GET_STATUS_CTL,
 259                                      READ_SHUTTER_FORMATTER, &def);
 260                 if (r || def > 255)
 261                         def = 255;
 262                 pdev->exposure = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,
 263                                         V4L2_CID_EXPOSURE, 0, 255, 1, def);
 264                 /* CODEC3: both gain and exposure controlled by autogain */
 265                 pdev->autogain_expo_cluster[0] = pdev->autogain;
 266                 pdev->autogain_expo_cluster[1] = pdev->gain;
 267                 pdev->autogain_expo_cluster[2] = pdev->exposure;
 268                 v4l2_ctrl_auto_cluster(3, pdev->autogain_expo_cluster,
 269                                        0, true);
 270         }
 271
 272         /* color / bw setting */
 273         r = pwc_get_u8_ctrl(pdev, GET_CHROM_CTL, COLOUR_MODE_FORMATTER,
 274                          &def);
 275         if (r || (def != 0 && def != 0xff))
 276                 def = 0xff;
 277         /* def = 0 bw, def = ff color, menu idx 0 = color, idx 1 = bw */
 278         pdev->colorfx = v4l2_ctrl_new_std_menu(hdl, &pwc_ctrl_ops,
 279                                 V4L2_CID_COLORFX, 1, 0, def == 0);
 280
 281         /* autocontour, contour */
 282         r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, AUTO_CONTOUR_FORMATTER, &def);
 283         if (r || (def != 0 && def != 0xff))
 284                 def = 0;
 285         cfg = pwc_autocontour_cfg;
 286         cfg.def = def == 0;
 287         pdev->autocontour = v4l2_ctrl_new_custom(hdl, &cfg, NULL);
 288         if (!pdev->autocontour)
 289                 return hdl->error;
 290
 291         r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, PRESET_CONTOUR_FORMATTER, &def);
 292         if (r || def > 63)
 293                 def = 31;
 294         cfg = pwc_contour_cfg;
 295         cfg.def = def;
 296         pdev->contour = v4l2_ctrl_new_custom(hdl, &cfg, NULL);
 297
 298         v4l2_ctrl_auto_cluster(2, &pdev->autocontour, 0, false);
 299
 300         /* backlight */
 301         r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL,
 302                             BACK_LIGHT_COMPENSATION_FORMATTER, &def);
 303         if (r || (def != 0 && def != 0xff))
 304                 def = 0;
 305         cfg = pwc_backlight_cfg;
 306         cfg.name = v4l2_ctrl_get_name(cfg.id);
 307         cfg.def = def == 0;
 308         pdev->backlight = v4l2_ctrl_new_custom(hdl, &cfg, NULL);
 309
 310         /* flikker rediction */
 311         r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL,
 312                             FLICKERLESS_MODE_FORMATTER, &def);
 313         if (r || (def != 0 && def != 0xff))
 314                 def = 0;
 315         cfg = pwc_flicker_cfg;
 316         cfg.name = v4l2_ctrl_get_name(cfg.id);
 317         cfg.def = def == 0;
 318         pdev->flicker = v4l2_ctrl_new_custom(hdl, &cfg, NULL);
 319
 320         /* Dynamic noise reduction */
 321         r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL,
 322                             DYNAMIC_NOISE_CONTROL_FORMATTER, &def);
 323         if (r || def > 3)
 324                 def = 2;
 325         cfg = pwc_noise_reduction_cfg;
 326         cfg.def = def;
 327         pdev->noise_reduction = v4l2_ctrl_new_custom(hdl, &cfg, NULL);
 328
 329         /* Save / Restore User / Factory Settings */
 330         pdev->save_user = v4l2_ctrl_new_custom(hdl, &pwc_save_user_cfg, NULL);
 331         pdev->restore_user = v4l2_ctrl_new_custom(hdl, &pwc_restore_user_cfg,
 332                                                   NULL);
 333         if (pdev->restore_user)
 334                 pdev->restore_user->flags |= V4L2_CTRL_FLAG_UPDATE;
 335         pdev->restore_factory = v4l2_ctrl_new_custom(hdl,
 336                                                      &pwc_restore_factory_cfg,
 337                                                      NULL);
 338         if (pdev->restore_factory)
 339                 pdev->restore_factory->flags |= V4L2_CTRL_FLAG_UPDATE;
 340
 341         if (!(pdev->features & FEATURE_MOTOR_PANTILT))
 342                 return hdl->error;
 343
 344         /* Motor pan / tilt / reset */
 345         pdev->motor_pan = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,
 346                                 V4L2_CID_PAN_RELATIVE, -4480, 4480, 64, 0);
 347         if (!pdev->motor_pan)
 348                 return hdl->error;
 349         pdev->motor_tilt = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,
 350                                 V4L2_CID_TILT_RELATIVE, -1920, 1920, 64, 0);
 351         pdev->motor_pan_reset = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,
 352                                 V4L2_CID_PAN_RESET, 0, 0, 0, 0);
 353         pdev->motor_tilt_reset = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,
 354                                 V4L2_CID_TILT_RESET, 0, 0, 0, 0);
 355         v4l2_ctrl_cluster(4, &pdev->motor_pan);
 356
 357         return hdl->error;
 358 }
 359
 360 static void pwc_vidioc_fill_fmt(const struct pwc_device *pdev, struct v4l2_format *f)
 361 {
 362         memset(&f->fmt.pix, 0, sizeof(struct v4l2_pix_format));
 363         f->fmt.pix.width        = pdev->view.x;
 364         f->fmt.pix.height       = pdev->view.y;
 365         f->fmt.pix.field        = V4L2_FIELD_NONE;
 366         if (pdev->pixfmt == V4L2_PIX_FMT_YUV420) {
 367                 f->fmt.pix.pixelformat  = V4L2_PIX_FMT_YUV420;
 368                 f->fmt.pix.bytesperline = (f->fmt.pix.width * 3)/2;
 369                 f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
 370         } else {
 371                 /* vbandlength contains 4 lines ...  */
 372                 f->fmt.pix.bytesperline = pdev->vbandlength/4;
 373                 f->fmt.pix.sizeimage = pdev->frame_size + sizeof(struct pwc_raw_frame);
 374                 if (DEVICE_USE_CODEC1(pdev->type))
 375                         f->fmt.pix.pixelformat  = V4L2_PIX_FMT_PWC1;
 376                 else
 377                         f->fmt.pix.pixelformat  = V4L2_PIX_FMT_PWC2;
 378         }
 379         PWC_DEBUG_IOCTL("pwc_vidioc_fill_fmt() "
 380                         "width=%d, height=%d, bytesperline=%d, sizeimage=%d, pixelformat=%c%c%c%c\n",
 381                         f->fmt.pix.width,
 382                         f->fmt.pix.height,
 383                         f->fmt.pix.bytesperline,
 384                         f->fmt.pix.sizeimage,
 385                         (f->fmt.pix.pixelformat)&255,
 386                         (f->fmt.pix.pixelformat>>8)&255,
 387                         (f->fmt.pix.pixelformat>>16)&255,
 388                         (f->fmt.pix.pixelformat>>24)&255);
 389 }
 390
 391 /* ioctl(VIDIOC_TRY_FMT) */
 392 static int pwc_vidioc_try_fmt(struct pwc_device *pdev, struct v4l2_format *f)
 393 {
 394         if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
 395                 PWC_DEBUG_IOCTL("Bad video type must be V4L2_BUF_TYPE_VIDEO_CAPTURE\n");
 396                 return -EINVAL;
 397         }
 398
 399         switch (f->fmt.pix.pixelformat) {
 400                 case V4L2_PIX_FMT_YUV420:
 401                         break;
 402                 case V4L2_PIX_FMT_PWC1:
 403                         if (DEVICE_USE_CODEC23(pdev->type)) {
 404                                 PWC_DEBUG_IOCTL("codec1 is only supported for old pwc webcam\n");
 405                                 return -EINVAL;
 406                         }
 407                         break;
 408                 case V4L2_PIX_FMT_PWC2:
 409                         if (DEVICE_USE_CODEC1(pdev->type)) {
 410                                 PWC_DEBUG_IOCTL("codec23 is only supported for new pwc webcam\n");
 411                                 return -EINVAL;
 412                         }
 413                         break;
 414                 default:
 415                         PWC_DEBUG_IOCTL("Unsupported pixel format\n");
 416                         return -EINVAL;
 417
 418         }
 419
 420         if (f->fmt.pix.width > pdev->view_max.x)
 421                 f->fmt.pix.width = pdev->view_max.x;
 422         else if (f->fmt.pix.width < pdev->view_min.x)
 423                 f->fmt.pix.width = pdev->view_min.x;
 424
 425         if (f->fmt.pix.height > pdev->view_max.y)
 426                 f->fmt.pix.height = pdev->view_max.y;
 427         else if (f->fmt.pix.height < pdev->view_min.y)
 428                 f->fmt.pix.height = pdev->view_min.y;
 429
 430         return 0;
 431 }
 432
 433 /* ioctl(VIDIOC_SET_FMT) */
 434
 435 static int pwc_s_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f)
 436 {
 437         struct pwc_device *pdev = video_drvdata(file);
 438         int ret, fps, snapshot, compression, pixelformat;
 439
 440         if (!pdev->udev)
 441                 return -ENODEV;
 442
 443         if (pdev->capt_file != NULL &&
 444             pdev->capt_file != file)
 445                 return -EBUSY;
 446
 447         pdev->capt_file = file;
 448
 449         ret = pwc_vidioc_try_fmt(pdev, f);
 450         if (ret<0)
 451                 return ret;
 452
 453         pixelformat = f->fmt.pix.pixelformat;
 454         compression = pdev->vcompression;
 455         snapshot = 0;
 456         fps = pdev->vframes;
 457         if (f->fmt.pix.priv) {
 458                 compression = (f->fmt.pix.priv & PWC_QLT_MASK) >> PWC_QLT_SHIFT;
 459                 snapshot = !!(f->fmt.pix.priv & PWC_FPS_SNAPSHOT);
 460                 fps = (f->fmt.pix.priv & PWC_FPS_FRMASK) >> PWC_FPS_SHIFT;
 461                 if (fps == 0)
 462                         fps = pdev->vframes;
 463         }
 464
 465         if (pixelformat != V4L2_PIX_FMT_YUV420 &&
 466             pixelformat != V4L2_PIX_FMT_PWC1 &&
 467             pixelformat != V4L2_PIX_FMT_PWC2)
 468                 return -EINVAL;
 469
 470         if (vb2_is_streaming(&pdev->vb_queue))
 471                 return -EBUSY;
 472
 473         PWC_DEBUG_IOCTL("Trying to set format to: width=%d height=%d fps=%d "
 474                         "compression=%d snapshot=%d format=%c%c%c%c\n",
 475                         f->fmt.pix.width, f->fmt.pix.height, fps,
 476                         compression, snapshot,
 477                         (pixelformat)&255,
 478                         (pixelformat>>8)&255,
 479                         (pixelformat>>16)&255,
 480                         (pixelformat>>24)&255);
 481
 482         ret = pwc_set_video_mode(pdev,
 483                                  f->fmt.pix.width,
 484                                  f->fmt.pix.height,
 485                                  fps,
 486                                  compression,
 487                                  snapshot);
 488
 489         PWC_DEBUG_IOCTL("pwc_set_video_mode(), return=%d\n", ret);
 490
 491         if (ret)
 492                 return ret;
 493
 494         pdev->pixfmt = pixelformat;
 495
 496         pwc_vidioc_fill_fmt(pdev, f);
 497
 498         return 0;
 499
 500 }
 501
 502 static int pwc_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
 503 {
 504         struct pwc_device *pdev = video_drvdata(file);
 505
 506         if (!pdev->udev)
 507                 return -ENODEV;
 508
 509         strcpy(cap->driver, PWC_NAME);
 510         strlcpy(cap->card, pdev->vdev.name, sizeof(cap->card));
 511         usb_make_path(pdev->udev, cap->bus_info, sizeof(cap->bus_info));
 512         cap->capabilities =
 513                 V4L2_CAP_VIDEO_CAPTURE  |
 514                 V4L2_CAP_STREAMING      |
 515                 V4L2_CAP_READWRITE;
 516         return 0;
 517 }
 518
 519 static int pwc_enum_input(struct file *file, void *fh, struct v4l2_input *i)
 520 {
 521         if (i->index)   /* Only one INPUT is supported */
 522                 return -EINVAL;
 523
 524         strcpy(i->name, "usb");
 525         return 0;
 526 }
 527
 528 static int pwc_g_input(struct file *file, void *fh, unsigned int *i)
 529 {
 530         *i = 0;
 531         return 0;
 532 }
 533
 534 static int pwc_s_input(struct file *file, void *fh, unsigned int i)
 535 {
 536         return i ? -EINVAL : 0;
 537 }
 538
 539 static int pwc_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
 540 {
 541         struct pwc_device *pdev =
 542                 container_of(ctrl->handler, struct pwc_device, ctrl_handler);
 543         int ret = 0;
 544
 545         /*
 546          * Sometimes it can take quite long for the pwc to complete usb control
 547          * transfers, so release the modlock to give streaming by another
 548          * process / thread the chance to continue with a dqbuf.
 549          */
 550         mutex_unlock(&pdev->modlock);
 551
 552         /*
 553          * Take the udev-lock to protect against the disconnect handler
 554          * completing and setting dev->udev to NULL underneath us. Other code
 555          * does not need to do this since it is protected by the modlock.
 556          */
 557         mutex_lock(&pdev->udevlock);
 558
 559         if (!pdev->udev) {
 560                 ret = -ENODEV;
 561                 goto leave;
 562         }
 563
 564         switch (ctrl->id) {
 565         case V4L2_CID_AUTO_WHITE_BALANCE:
 566                 if (pdev->color_bal_valid &&
 567                         (pdev->auto_white_balance->val != awb_auto ||
 568                          time_before(jiffies,
 569                                 pdev->last_color_bal_update + HZ / 4))) {
 570                         pdev->red_balance->val  = pdev->last_red_balance;
 571                         pdev->blue_balance->val = pdev->last_blue_balance;
 572                         break;
 573                 }
 574                 ret = pwc_get_u8_ctrl(pdev, GET_STATUS_CTL,
 575                                       READ_RED_GAIN_FORMATTER,
 576                                       &pdev->red_balance->val);
 577                 if (ret)
 578                         break;
 579                 ret = pwc_get_u8_ctrl(pdev, GET_STATUS_CTL,
 580                                       READ_BLUE_GAIN_FORMATTER,
 581                                       &pdev->blue_balance->val);
 582                 if (ret)
 583                         break;
 584                 pdev->last_red_balance  = pdev->red_balance->val;
 585                 pdev->last_blue_balance = pdev->blue_balance->val;
 586                 pdev->last_color_bal_update = jiffies;
 587                 pdev->color_bal_valid = true;
 588                 break;
 589         case V4L2_CID_AUTOGAIN:
 590                 if (pdev->gain_valid && time_before(jiffies,
 591                                 pdev->last_gain_update + HZ / 4)) {
 592                         pdev->gain->val = pdev->last_gain;
 593                         break;
 594                 }
 595                 ret = pwc_get_u8_ctrl(pdev, GET_STATUS_CTL,
 596                                       READ_AGC_FORMATTER, &pdev->gain->val);
 597                 if (ret)
 598                         break;
 599                 pdev->last_gain = pdev->gain->val;
 600                 pdev->last_gain_update = jiffies;
 601                 pdev->gain_valid = true;
 602                 if (!DEVICE_USE_CODEC3(pdev->type))
 603                         break;
 604                 /* Fall through for CODEC3 where autogain also controls expo */
 605         case V4L2_CID_EXPOSURE_AUTO:
 606                 if (pdev->exposure_valid && time_before(jiffies,
 607                                 pdev->last_exposure_update + HZ / 4)) {
 608                         pdev->exposure->val = pdev->last_exposure;
 609                         break;
 610                 }
 611                 ret = pwc_get_u16_ctrl(pdev, GET_STATUS_CTL,
 612                                        READ_SHUTTER_FORMATTER,
 613                                        &pdev->exposure->val);
 614                 if (ret)
 615                         break;
 616                 pdev->last_exposure = pdev->exposure->val;
 617                 pdev->last_exposure_update = jiffies;
 618                 pdev->exposure_valid = true;
 619                 break;
 620         default:
 621                 ret = -EINVAL;
 622         }
 623
 624         if (ret)
 625                 PWC_ERROR("g_ctrl %s error %d\n", ctrl->name, ret);
 626
 627 leave:
 628         mutex_unlock(&pdev->udevlock);
 629         mutex_lock(&pdev->modlock);
 630         return ret;
 631 }
 632
 633 static int pwc_set_awb(struct pwc_device *pdev)
 634 {
 635         int ret;
 636
 637         if (pdev->auto_white_balance->is_new) {
 638                 ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL,
 639                                       WB_MODE_FORMATTER,
 640                                       pdev->auto_white_balance->val);
 641                 if (ret)
 642                         return ret;
 643
 644                 if (pdev->auto_white_balance->val != awb_manual)
 645                         pdev->color_bal_valid = false; /* Force cache update */
 646         }
 647         if (pdev->auto_white_balance->val != awb_manual)
 648                 return 0;
 649
 650         if (pdev->red_balance->is_new) {
 651                 ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL,
 652                                       PRESET_MANUAL_RED_GAIN_FORMATTER,
 653                                       pdev->red_balance->val);
 654                 if (ret)
 655                         return ret;
 656         }
 657
 658         if (pdev->blue_balance->is_new) {
 659                 ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL,
 660                                       PRESET_MANUAL_BLUE_GAIN_FORMATTER,
 661                                       pdev->blue_balance->val);
 662                 if (ret)
 663                         return ret;
 664         }
 665         return 0;
 666 }
 667
 668 /* For CODEC2 models which have separate autogain and auto exposure */
 669 static int pwc_set_autogain(struct pwc_device *pdev)
 670 {
 671         int ret;
 672
 673         if (pdev->autogain->is_new) {
 674                 ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,
 675                                       AGC_MODE_FORMATTER,
 676                                       pdev->autogain->val ? 0 : 0xff);
 677                 if (ret)
 678                         return ret;
 679
 680                 if (pdev->autogain->val)
 681                         pdev->gain_valid = false; /* Force cache update */
 682         }
 683
 684         if (pdev->autogain->val)
 685                 return 0;
 686
 687         if (pdev->gain->is_new) {
 688                 ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,
 689                                       PRESET_AGC_FORMATTER,
 690                                       pdev->gain->val);
 691                 if (ret)
 692                         return ret;
 693         }
 694         return 0;
 695 }
 696
 697 /* For CODEC2 models which have separate autogain and auto exposure */
 698 static int pwc_set_exposure_auto(struct pwc_device *pdev)
 699 {
 700         int ret;
 701         int is_auto = pdev->exposure_auto->val == V4L2_EXPOSURE_AUTO;
 702
 703         if (pdev->exposure_auto->is_new) {
 704                 ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,
 705                                       SHUTTER_MODE_FORMATTER,
 706                                       is_auto ? 0 : 0xff);
 707                 if (ret)
 708                         return ret;
 709
 710                 if (is_auto)
 711                         pdev->exposure_valid = false; /* Force cache update */
 712         }
 713
 714         if (is_auto)
 715                 return 0;
 716
 717         if (pdev->exposure->is_new) {
 718                 ret = pwc_set_u16_ctrl(pdev, SET_LUM_CTL,
 719                                        PRESET_SHUTTER_FORMATTER,
 720                                        pdev->exposure->val);
 721                 if (ret)
 722                         return ret;
 723         }
 724         return 0;
 725 }
 726
 727 /* For CODEC3 models which have autogain controlling both gain and exposure */
 728 static int pwc_set_autogain_expo(struct pwc_device *pdev)
 729 {
 730         int ret;
 731
 732         if (pdev->autogain->is_new) {
 733                 ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,
 734                                       AGC_MODE_FORMATTER,
 735                                       pdev->autogain->val ? 0 : 0xff);
 736                 if (ret)
 737                         return ret;
 738
 739                 if (pdev->autogain->val) {
 740                         pdev->gain_valid     = false; /* Force cache update */
 741                         pdev->exposure_valid = false; /* Force cache update */
 742                 }
 743         }
 744
 745         if (pdev->autogain->val)
 746                 return 0;
 747
 748         if (pdev->gain->is_new) {
 749                 ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,
 750                                       PRESET_AGC_FORMATTER,
 751                                       pdev->gain->val);
 752                 if (ret)
 753                         return ret;
 754         }
 755
 756         if (pdev->exposure->is_new) {
 757                 ret = pwc_set_u16_ctrl(pdev, SET_LUM_CTL,
 758                                        PRESET_SHUTTER_FORMATTER,
 759                                        pdev->exposure->val);
 760                 if (ret)
 761                         return ret;
 762         }
 763         return 0;
 764 }
 765
 766 static int pwc_set_motor(struct pwc_device *pdev)
 767 {
 768         int ret;
 769         u8 buf[4];
 770
 771         buf[0] = 0;
 772         if (pdev->motor_pan_reset->is_new)
 773                 buf[0] |= 0x01;
 774         if (pdev->motor_tilt_reset->is_new)
 775                 buf[0] |= 0x02;
 776         if (pdev->motor_pan_reset->is_new || pdev->motor_tilt_reset->is_new) {
 777                 ret = send_control_msg(pdev, SET_MPT_CTL,
 778                                        PT_RESET_CONTROL_FORMATTER, buf, 1);
 779                 if (ret < 0)
 780                         return ret;
 781         }
 782
 783         memset(buf, 0, sizeof(buf));
 784         if (pdev->motor_pan->is_new) {
 785                 buf[0] = pdev->motor_pan->val & 0xFF;
 786                 buf[1] = (pdev->motor_pan->val >> 8);
 787         }
 788         if (pdev->motor_tilt->is_new) {
 789                 buf[2] = pdev->motor_tilt->val & 0xFF;
 790                 buf[3] = (pdev->motor_tilt->val >> 8);
 791         }
 792         if (pdev->motor_pan->is_new || pdev->motor_tilt->is_new) {
 793                 ret = send_control_msg(pdev, SET_MPT_CTL,
 794                                        PT_RELATIVE_CONTROL_FORMATTER,
 795                                        buf, sizeof(buf));
 796                 if (ret < 0)
 797                         return ret;
 798         }
 799
 800         return 0;
 801 }
 802
 803 static int pwc_s_ctrl(struct v4l2_ctrl *ctrl)
 804 {
 805         struct pwc_device *pdev =
 806                 container_of(ctrl->handler, struct pwc_device, ctrl_handler);
 807         int ret = 0;
 808
 809         /* See the comments on locking in pwc_g_volatile_ctrl */
 810         mutex_unlock(&pdev->modlock);
 811         mutex_lock(&pdev->udevlock);
 812
 813         if (!pdev->udev) {
 814                 ret = -ENODEV;
 815                 goto leave;
 816         }
 817
 818         switch (ctrl->id) {
 819         case V4L2_CID_BRIGHTNESS:
 820                 ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,
 821                                       BRIGHTNESS_FORMATTER, ctrl->val);
 822                 break;
 823         case V4L2_CID_CONTRAST:
 824                 ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,
 825                                       CONTRAST_FORMATTER, ctrl->val);
 826                 break;
 827         case V4L2_CID_SATURATION:
 828                 ret = pwc_set_s8_ctrl(pdev, SET_CHROM_CTL,
 829                                       pdev->saturation_fmt, ctrl->val);
 830                 break;
 831         case V4L2_CID_GAMMA:
 832                 ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,
 833                                       GAMMA_FORMATTER, ctrl->val);
 834                 break;
 835         case V4L2_CID_AUTO_WHITE_BALANCE:
 836                 ret = pwc_set_awb(pdev);
 837                 break;
 838         case V4L2_CID_AUTOGAIN:
 839                 if (DEVICE_USE_CODEC2(pdev->type))
 840                         ret = pwc_set_autogain(pdev);
 841                 else if (DEVICE_USE_CODEC3(pdev->type))
 842                         ret = pwc_set_autogain_expo(pdev);
 843                 else
 844                         ret = -EINVAL;
 845                 break;
 846         case V4L2_CID_EXPOSURE_AUTO:
 847                 if (DEVICE_USE_CODEC2(pdev->type))
 848                         ret = pwc_set_exposure_auto(pdev);
 849                 else
 850                         ret = -EINVAL;
 851                 break;
 852         case V4L2_CID_COLORFX:
 853                 ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL,
 854                                       COLOUR_MODE_FORMATTER,
 855                                       ctrl->val ? 0 : 0xff);
 856                 break;
 857         case PWC_CID_CUSTOM(autocontour):
 858                 if (pdev->autocontour->is_new) {
 859                         ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,
 860                                         AUTO_CONTOUR_FORMATTER,
 861                                         pdev->autocontour->val ? 0 : 0xff);
 862                 }
 863                 if (ret == 0 && pdev->contour->is_new) {
 864                         ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,
 865                                               PRESET_CONTOUR_FORMATTER,
 866                                               pdev->contour->val);
 867                 }
 868                 break;
 869         case V4L2_CID_BACKLIGHT_COMPENSATION:
 870                 ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,
 871                                       BACK_LIGHT_COMPENSATION_FORMATTER,
 872                                       ctrl->val ? 0 : 0xff);
 873                 break;
 874         case V4L2_CID_BAND_STOP_FILTER:
 875                 ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,
 876                                       FLICKERLESS_MODE_FORMATTER,
 877                                       ctrl->val ? 0 : 0xff);
 878                 break;
 879         case PWC_CID_CUSTOM(noise_reduction):
 880                 ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,
 881                                       DYNAMIC_NOISE_CONTROL_FORMATTER,
 882                                       ctrl->val);
 883                 break;
 884         case PWC_CID_CUSTOM(save_user):
 885                 ret = pwc_button_ctrl(pdev, SAVE_USER_DEFAULTS_FORMATTER);
 886                 break;
 887         case PWC_CID_CUSTOM(restore_user):
 888                 ret = pwc_button_ctrl(pdev, RESTORE_USER_DEFAULTS_FORMATTER);
 889                 break;
 890         case PWC_CID_CUSTOM(restore_factory):
 891                 ret = pwc_button_ctrl(pdev,
 892                                       RESTORE_FACTORY_DEFAULTS_FORMATTER);
 893                 break;
 894         case V4L2_CID_PAN_RELATIVE:
 895                 ret = pwc_set_motor(pdev);
 896                 break;
 897         default:
 898                 ret = -EINVAL;
 899         }
 900
 901         if (ret)
 902                 PWC_ERROR("s_ctrl %s error %d\n", ctrl->name, ret);
 903
 904 leave:
 905         mutex_unlock(&pdev->udevlock);
 906         mutex_lock(&pdev->modlock);
 907         return ret;
 908 }
 909
 910 static int pwc_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdesc *f)
 911 {
 912         struct pwc_device *pdev = video_drvdata(file);
 913
 914         /* We only support two format: the raw format, and YUV */
 915         switch (f->index) {
 916         case 0:
 917                 /* RAW format */
 918                 f->pixelformat = pdev->type <= 646 ? V4L2_PIX_FMT_PWC1 : V4L2_PIX_FMT_PWC2;
 919                 f->flags = V4L2_FMT_FLAG_COMPRESSED;
 920                 strlcpy(f->description, "Raw Philips Webcam", sizeof(f->description));
 921                 break;
 922         case 1:
 923                 f->pixelformat = V4L2_PIX_FMT_YUV420;
 924                 strlcpy(f->description, "4:2:0, planar, Y-Cb-Cr", sizeof(f->description));
 925                 break;
 926         default:
 927                 return -EINVAL;
 928         }
 929         return 0;
 930 }
 931
 932 static int pwc_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f)
 933 {
 934         struct pwc_device *pdev = video_drvdata(file);
 935
 936         PWC_DEBUG_IOCTL("ioctl(VIDIOC_G_FMT) return size %dx%d\n",
 937                         pdev->image.x, pdev->image.y);
 938         pwc_vidioc_fill_fmt(pdev, f);
 939         return 0;
 940 }
 941
 942 static int pwc_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f)
 943 {
 944         struct pwc_device *pdev = video_drvdata(file);
 945
 946         return pwc_vidioc_try_fmt(pdev, f);
 947 }
 948
 949 static int pwc_reqbufs(struct file *file, void *fh,
 950                        struct v4l2_requestbuffers *rb)
 951 {
 952         struct pwc_device *pdev = video_drvdata(file);
 953
 954         if (pdev->capt_file != NULL &&
 955             pdev->capt_file != file)
 956                 return -EBUSY;
 957
 958         pdev->capt_file = file;
 959
 960         return vb2_reqbufs(&pdev->vb_queue, rb);
 961 }
 962
 963 static int pwc_querybuf(struct file *file, void *fh, struct v4l2_buffer *buf)
 964 {
 965         struct pwc_device *pdev = video_drvdata(file);
 966
 967         return vb2_querybuf(&pdev->vb_queue, buf);
 968 }
 969
 970 static int pwc_qbuf(struct file *file, void *fh, struct v4l2_buffer *buf)
 971 {
 972         struct pwc_device *pdev = video_drvdata(file);
 973
 974         if (!pdev->udev)
 975                 return -ENODEV;
 976
 977         if (pdev->capt_file != file)
 978                 return -EBUSY;
 979
 980         return vb2_qbuf(&pdev->vb_queue, buf);
 981 }
 982
 983 static int pwc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *buf)
 984 {
 985         struct pwc_device *pdev = video_drvdata(file);
 986
 987         if (!pdev->udev)
 988                 return -ENODEV;
 989
 990         if (pdev->capt_file != file)
 991                 return -EBUSY;
 992
 993         return vb2_dqbuf(&pdev->vb_queue, buf, file->f_flags & O_NONBLOCK);
 994 }
 995
 996 static int pwc_streamon(struct file *file, void *fh, enum v4l2_buf_type i)
 997 {
 998         struct pwc_device *pdev = video_drvdata(file);
 999
1000         if (!pdev->udev)
1001                 return -ENODEV;
1002
1003         if (pdev->capt_file != file)
1004                 return -EBUSY;
1005
1006         return vb2_streamon(&pdev->vb_queue, i);
1007 }
1008
1009 static int pwc_streamoff(struct file *file, void *fh, enum v4l2_buf_type i)
1010 {
1011         struct pwc_device *pdev = video_drvdata(file);
1012
1013         if (!pdev->udev)
1014                 return -ENODEV;
1015
1016         if (pdev->capt_file != file)
1017                 return -EBUSY;
1018
1019         return vb2_streamoff(&pdev->vb_queue, i);
1020 }
1021
1022 static int pwc_enum_framesizes(struct file *file, void *fh,
1023                                          struct v4l2_frmsizeenum *fsize)
1024 {
1025         struct pwc_device *pdev = video_drvdata(file);
1026         unsigned int i = 0, index = fsize->index;
1027
1028         if (fsize->pixel_format == V4L2_PIX_FMT_YUV420) {
1029                 for (i = 0; i < PSZ_MAX; i++) {
1030                         if (pdev->image_mask & (1UL << i)) {
1031                                 if (!index--) {
1032                                         fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
1033                                         fsize->discrete.width = pwc_image_sizes[i].x;
1034                                         fsize->discrete.height = pwc_image_sizes[i].y;
1035                                         return 0;
1036                                 }
1037                         }
1038                 }
1039         } else if (fsize->index == 0 &&
1040                         ((fsize->pixel_format == V4L2_PIX_FMT_PWC1 && DEVICE_USE_CODEC1(pdev->type)) ||
1041                          (fsize->pixel_format == V4L2_PIX_FMT_PWC2 && DEVICE_USE_CODEC23(pdev->type)))) {
1042
1043                 fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
1044                 fsize->discrete.width = pdev->abs_max.x;
1045                 fsize->discrete.height = pdev->abs_max.y;
1046                 return 0;
1047         }
1048         return -EINVAL;
1049 }
1050
1051 static int pwc_enum_frameintervals(struct file *file, void *fh,
1052                                            struct v4l2_frmivalenum *fival)
1053 {
1054         struct pwc_device *pdev = video_drvdata(file);
1055         int size = -1;
1056         unsigned int i;
1057
1058         for (i = 0; i < PSZ_MAX; i++) {
1059                 if (pwc_image_sizes[i].x == fival->width &&
1060                                 pwc_image_sizes[i].y == fival->height) {
1061                         size = i;
1062                         break;
1063                 }
1064         }
1065
1066         /* TODO: Support raw format */
1067         if (size < 0 || fival->pixel_format != V4L2_PIX_FMT_YUV420)
1068                 return -EINVAL;
1069
1070         i = pwc_get_fps(pdev, fival->index, size);
1071         if (!i)
1072                 return -EINVAL;
1073
1074         fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
1075         fival->discrete.numerator = 1;
1076         fival->discrete.denominator = i;
1077
1078         return 0;
1079 }
1080
1081 static int pwc_log_status(struct file *file, void *priv)
1082 {
1083         struct pwc_device *pdev = video_drvdata(file);
1084
1085         v4l2_ctrl_handler_log_status(&pdev->ctrl_handler, PWC_NAME);
1086         return 0;
1087 }
1088
1089 static long pwc_default(struct file *file, void *fh, bool valid_prio,
1090                         int cmd, void *arg)
1091 {
1092         struct pwc_device *pdev = video_drvdata(file);
1093
1094         return pwc_ioctl(pdev, cmd, arg);
1095 }
1096
1097 const struct v4l2_ioctl_ops pwc_ioctl_ops = {
1098         .vidioc_querycap                    = pwc_querycap,
1099         .vidioc_enum_input                  = pwc_enum_input,
1100         .vidioc_g_input                     = pwc_g_input,
1101         .vidioc_s_input                     = pwc_s_input,
1102         .vidioc_enum_fmt_vid_cap            = pwc_enum_fmt_vid_cap,
1103         .vidioc_g_fmt_vid_cap               = pwc_g_fmt_vid_cap,
1104         .vidioc_s_fmt_vid_cap               = pwc_s_fmt_vid_cap,
1105         .vidioc_try_fmt_vid_cap             = pwc_try_fmt_vid_cap,
1106         .vidioc_reqbufs                     = pwc_reqbufs,
1107         .vidioc_querybuf                    = pwc_querybuf,
1108         .vidioc_qbuf                        = pwc_qbuf,
1109         .vidioc_dqbuf                       = pwc_dqbuf,
1110         .vidioc_streamon                    = pwc_streamon,
1111         .vidioc_streamoff                   = pwc_streamoff,
1112         .vidioc_log_status                  = pwc_log_status,
1113         .vidioc_enum_framesizes             = pwc_enum_framesizes,
1114         .vidioc_enum_frameintervals         = pwc_enum_frameintervals,
1115         .vidioc_default             = pwc_default,
1116 };
1117
1118
1119 /* vim: set cino= formatoptions=croql cindent shiftwidth=8 tabstop=8: */