drivers/media/video/v4l1-compat.c

   1 /*
   2  *
   3  *      Video for Linux Two
   4  *      Backward Compatibility Layer
   5  *
   6  *      Support subroutines for providing V4L2 drivers with backward
   7  *      compatibility with applications using the old API.
   8  *
   9  *      This program is free software; you can redistribute it and/or
  10  *      modify it under the terms of the GNU General Public License
  11  *      as published by the Free Software Foundation; either version
  12  *      2 of the License, or (at your option) any later version.
  13  *
  14  * Author:      Bill Dirks <bill@thedirks.org>
  15  *              et al.
  16  *
  17  */
  18
  19
  20 #include <linux/init.h>
  21 #include <linux/module.h>
  22 #include <linux/types.h>
  23 #include <linux/kernel.h>
  24 #include <linux/sched.h>
  25 #include <linux/mm.h>
  26 #include <linux/fs.h>
  27 #include <linux/file.h>
  28 #include <linux/string.h>
  29 #include <linux/errno.h>
  30 #include <linux/slab.h>
  31 #include <linux/videodev.h>
  32 #include <media/v4l2-common.h>
  33 #include <media/v4l2-ioctl.h>
  34
  35 #include <asm/uaccess.h>
  36 #include <asm/system.h>
  37 #include <asm/pgtable.h>
  38
  39 static unsigned int debug;
  40 module_param(debug, int, 0644);
  41 MODULE_PARM_DESC(debug, "enable debug messages");
  42 MODULE_AUTHOR("Bill Dirks");
  43 MODULE_DESCRIPTION("v4l(1) compatibility layer for v4l2 drivers.");
  44 MODULE_LICENSE("GPL");
  45
  46 #define dprintk(fmt, arg...) \
  47         do { \
  48                 if (debug) \
  49                         printk(KERN_DEBUG "v4l1-compat: " fmt , ## arg);\
  50         } while (0)
  51
  52 /*
  53  *      I O C T L   T R A N S L A T I O N
  54  *
  55  *      From here on down is the code for translating the numerous
  56  *      ioctl commands from the old API to the new API.
  57  */
  58
  59 static int
  60 get_v4l_control(struct file             *file,
  61                 int                     cid,
  62                 v4l2_kioctl             drv)
  63 {
  64         struct v4l2_queryctrl   qctrl2;
  65         struct v4l2_control     ctrl2;
  66         int                     err;
  67
  68         qctrl2.id = cid;
  69         err = drv(file, VIDIOC_QUERYCTRL, &qctrl2);
  70         if (err < 0)
  71                 dprintk("VIDIOC_QUERYCTRL: %d\n", err);
  72         if (err == 0 && !(qctrl2.flags & V4L2_CTRL_FLAG_DISABLED)) {
  73                 ctrl2.id = qctrl2.id;
  74                 err = drv(file, VIDIOC_G_CTRL, &ctrl2);
  75                 if (err < 0) {
  76                         dprintk("VIDIOC_G_CTRL: %d\n", err);
  77                         return 0;
  78                 }
  79                 return ((ctrl2.value - qctrl2.minimum) * 65535
  80                          + (qctrl2.maximum - qctrl2.minimum) / 2)
  81                         / (qctrl2.maximum - qctrl2.minimum);
  82         }
  83         return 0;
  84 }
  85
  86 static int
  87 set_v4l_control(struct file             *file,
  88                 int                     cid,
  89                 int                     value,
  90                 v4l2_kioctl             drv)
  91 {
  92         struct v4l2_queryctrl   qctrl2;
  93         struct v4l2_control     ctrl2;
  94         int                     err;
  95
  96         qctrl2.id = cid;
  97         err = drv(file, VIDIOC_QUERYCTRL, &qctrl2);
  98         if (err < 0)
  99                 dprintk("VIDIOC_QUERYCTRL: %d\n", err);
 100         if (err == 0 &&
 101             !(qctrl2.flags & V4L2_CTRL_FLAG_DISABLED) &&
 102             !(qctrl2.flags & V4L2_CTRL_FLAG_GRABBED)) {
 103                 if (value < 0)
 104                         value = 0;
 105                 if (value > 65535)
 106                         value = 65535;
 107                 if (value && qctrl2.type == V4L2_CTRL_TYPE_BOOLEAN)
 108                         value = 65535;
 109                 ctrl2.id = qctrl2.id;
 110                 ctrl2.value =
 111                         (value * (qctrl2.maximum - qctrl2.minimum)
 112                          + 32767)
 113                         / 65535;
 114                 ctrl2.value += qctrl2.minimum;
 115                 err = drv(file, VIDIOC_S_CTRL, &ctrl2);
 116                 if (err < 0)
 117                         dprintk("VIDIOC_S_CTRL: %d\n", err);
 118         }
 119         return 0;
 120 }
 121
 122 /* ----------------------------------------------------------------- */
 123
 124 static const unsigned int palette2pixelformat[] = {
 125         [VIDEO_PALETTE_GREY]    = V4L2_PIX_FMT_GREY,
 126         [VIDEO_PALETTE_RGB555]  = V4L2_PIX_FMT_RGB555,
 127         [VIDEO_PALETTE_RGB565]  = V4L2_PIX_FMT_RGB565,
 128         [VIDEO_PALETTE_RGB24]   = V4L2_PIX_FMT_BGR24,
 129         [VIDEO_PALETTE_RGB32]   = V4L2_PIX_FMT_BGR32,
 130         /* yuv packed pixel */
 131         [VIDEO_PALETTE_YUYV]    = V4L2_PIX_FMT_YUYV,
 132         [VIDEO_PALETTE_YUV422]  = V4L2_PIX_FMT_YUYV,
 133         [VIDEO_PALETTE_UYVY]    = V4L2_PIX_FMT_UYVY,
 134         /* yuv planar */
 135         [VIDEO_PALETTE_YUV410P] = V4L2_PIX_FMT_YUV410,
 136         [VIDEO_PALETTE_YUV420]  = V4L2_PIX_FMT_YUV420,
 137         [VIDEO_PALETTE_YUV420P] = V4L2_PIX_FMT_YUV420,
 138         [VIDEO_PALETTE_YUV411P] = V4L2_PIX_FMT_YUV411P,
 139         [VIDEO_PALETTE_YUV422P] = V4L2_PIX_FMT_YUV422P,
 140 };
 141
 142 static unsigned int __pure
 143 palette_to_pixelformat(unsigned int palette)
 144 {
 145         if (palette < ARRAY_SIZE(palette2pixelformat))
 146                 return palette2pixelformat[palette];
 147         else
 148                 return 0;
 149 }
 150
 151 static unsigned int __attribute_const__
 152 pixelformat_to_palette(unsigned int pixelformat)
 153 {
 154         int     palette = 0;
 155         switch (pixelformat) {
 156         case V4L2_PIX_FMT_GREY:
 157                 palette = VIDEO_PALETTE_GREY;
 158                 break;
 159         case V4L2_PIX_FMT_RGB555:
 160                 palette = VIDEO_PALETTE_RGB555;
 161                 break;
 162         case V4L2_PIX_FMT_RGB565:
 163                 palette = VIDEO_PALETTE_RGB565;
 164                 break;
 165         case V4L2_PIX_FMT_BGR24:
 166                 palette = VIDEO_PALETTE_RGB24;
 167                 break;
 168         case V4L2_PIX_FMT_BGR32:
 169                 palette = VIDEO_PALETTE_RGB32;
 170                 break;
 171         /* yuv packed pixel */
 172         case V4L2_PIX_FMT_YUYV:
 173                 palette = VIDEO_PALETTE_YUYV;
 174                 break;
 175         case V4L2_PIX_FMT_UYVY:
 176                 palette = VIDEO_PALETTE_UYVY;
 177                 break;
 178         /* yuv planar */
 179         case V4L2_PIX_FMT_YUV410:
 180                 palette = VIDEO_PALETTE_YUV420;
 181                 break;
 182         case V4L2_PIX_FMT_YUV420:
 183                 palette = VIDEO_PALETTE_YUV420;
 184                 break;
 185         case V4L2_PIX_FMT_YUV411P:
 186                 palette = VIDEO_PALETTE_YUV411P;
 187                 break;
 188         case V4L2_PIX_FMT_YUV422P:
 189                 palette = VIDEO_PALETTE_YUV422P;
 190                 break;
 191         }
 192         return palette;
 193 }
 194
 195 /* ----------------------------------------------------------------- */
 196
 197 static int poll_one(struct file *file, struct poll_wqueues *pwq)
 198 {
 199         int retval = 1;
 200         poll_table *table;
 201
 202         poll_initwait(pwq);
 203         table = &pwq->pt;
 204         for (;;) {
 205                 int mask;
 206                 mask = file->f_op->poll(file, table);
 207                 if (mask & POLLIN)
 208                         break;
 209                 table = NULL;
 210                 if (signal_pending(current)) {
 211                         retval = -ERESTARTSYS;
 212                         break;
 213                 }
 214                 poll_schedule(pwq, TASK_INTERRUPTIBLE);
 215         }
 216         poll_freewait(pwq);
 217         return retval;
 218 }
 219
 220 static int count_inputs(
 221                         struct file *file,
 222                         v4l2_kioctl drv)
 223 {
 224         struct v4l2_input input2;
 225         int i;
 226
 227         for (i = 0;; i++) {
 228                 memset(&input2, 0, sizeof(input2));
 229                 input2.index = i;
 230                 if (0 != drv(file, VIDIOC_ENUMINPUT, &input2))
 231                         break;
 232         }
 233         return i;
 234 }
 235
 236 static int check_size(
 237                 struct file *file,
 238                 v4l2_kioctl drv,
 239                 int *maxw,
 240                 int *maxh)
 241 {
 242         struct v4l2_fmtdesc desc2;
 243         struct v4l2_format  fmt2;
 244
 245         memset(&desc2, 0, sizeof(desc2));
 246         memset(&fmt2, 0, sizeof(fmt2));
 247
 248         desc2.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 249         if (0 != drv(file, VIDIOC_ENUM_FMT, &desc2))
 250                 goto done;
 251
 252         fmt2.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 253         fmt2.fmt.pix.width       = 10000;
 254         fmt2.fmt.pix.height      = 10000;
 255         fmt2.fmt.pix.pixelformat = desc2.pixelformat;
 256         if (0 != drv(file, VIDIOC_TRY_FMT, &fmt2))
 257                 goto done;
 258
 259         *maxw = fmt2.fmt.pix.width;
 260         *maxh = fmt2.fmt.pix.height;
 261
 262 done:
 263         return 0;
 264 }
 265
 266 /* ----------------------------------------------------------------- */
 267
 268 static noinline long v4l1_compat_get_capabilities(
 269                                         struct video_capability *cap,
 270                                         struct file *file,
 271                                         v4l2_kioctl drv)
 272 {
 273         long err;
 274         struct v4l2_framebuffer fbuf;
 275         struct v4l2_capability *cap2;
 276
 277         cap2 = kzalloc(sizeof(*cap2), GFP_KERNEL);
 278         if (!cap2) {
 279                 err = -ENOMEM;
 280                 return err;
 281         }
 282         memset(cap, 0, sizeof(*cap));
 283         memset(&fbuf, 0, sizeof(fbuf));
 284
 285         err = drv(file, VIDIOC_QUERYCAP, cap2);
 286         if (err < 0) {
 287                 dprintk("VIDIOCGCAP / VIDIOC_QUERYCAP: %ld\n", err);
 288                 goto done;
 289         }
 290         if (cap2->capabilities & V4L2_CAP_VIDEO_OVERLAY) {
 291                 err = drv(file, VIDIOC_G_FBUF, &fbuf);
 292                 if (err < 0) {
 293                         dprintk("VIDIOCGCAP / VIDIOC_G_FBUF: %ld\n", err);
 294                         memset(&fbuf, 0, sizeof(fbuf));
 295                 }
 296                 err = 0;
 297         }
 298
 299         memcpy(cap->name, cap2->card,
 300                min(sizeof(cap->name), sizeof(cap2->card)));
 301         cap->name[sizeof(cap->name) - 1] = 0;
 302         if (cap2->capabilities & V4L2_CAP_VIDEO_CAPTURE)
 303                 cap->type |= VID_TYPE_CAPTURE;
 304         if (cap2->capabilities & V4L2_CAP_TUNER)
 305                 cap->type |= VID_TYPE_TUNER;
 306         if (cap2->capabilities & V4L2_CAP_VBI_CAPTURE)
 307                 cap->type |= VID_TYPE_TELETEXT;
 308         if (cap2->capabilities & V4L2_CAP_VIDEO_OVERLAY)
 309                 cap->type |= VID_TYPE_OVERLAY;
 310         if (fbuf.capability & V4L2_FBUF_CAP_LIST_CLIPPING)
 311                 cap->type |= VID_TYPE_CLIPPING;
 312
 313         cap->channels  = count_inputs(file, drv);
 314         check_size(file, drv,
 315                    &cap->maxwidth, &cap->maxheight);
 316         cap->audios    =  0; /* FIXME */
 317         cap->minwidth  = 48; /* FIXME */
 318         cap->minheight = 32; /* FIXME */
 319
 320 done:
 321         kfree(cap2);
 322         return err;
 323 }
 324
 325 static noinline long v4l1_compat_get_frame_buffer(
 326                                         struct video_buffer *buffer,
 327                                         struct file *file,
 328                                         v4l2_kioctl drv)
 329 {
 330         long err;
 331         struct v4l2_framebuffer fbuf;
 332
 333         memset(buffer, 0, sizeof(*buffer));
 334         memset(&fbuf, 0, sizeof(fbuf));
 335
 336         err = drv(file, VIDIOC_G_FBUF, &fbuf);
 337         if (err < 0) {
 338                 dprintk("VIDIOCGFBUF / VIDIOC_G_FBUF: %ld\n", err);
 339                 goto done;
 340         }
 341         buffer->base   = fbuf.base;
 342         buffer->height = fbuf.fmt.height;
 343         buffer->width  = fbuf.fmt.width;
 344
 345         switch (fbuf.fmt.pixelformat) {
 346         case V4L2_PIX_FMT_RGB332:
 347                 buffer->depth = 8;
 348                 break;
 349         case V4L2_PIX_FMT_RGB555:
 350                 buffer->depth = 15;
 351                 break;
 352         case V4L2_PIX_FMT_RGB565:
 353                 buffer->depth = 16;
 354                 break;
 355         case V4L2_PIX_FMT_BGR24:
 356                 buffer->depth = 24;
 357                 break;
 358         case V4L2_PIX_FMT_BGR32:
 359                 buffer->depth = 32;
 360                 break;
 361         default:
 362                 buffer->depth = 0;
 363         }
 364         if (fbuf.fmt.bytesperline) {
 365                 buffer->bytesperline = fbuf.fmt.bytesperline;
 366                 if (!buffer->depth && buffer->width)
 367                         buffer->depth   = ((fbuf.fmt.bytesperline<<3)
 368                                           + (buffer->width-1))
 369                                           / buffer->width;
 370         } else {
 371                 buffer->bytesperline =
 372                         (buffer->width * buffer->depth + 7) & 7;
 373                 buffer->bytesperline >>= 3;
 374         }
 375 done:
 376         return err;
 377 }
 378
 379 static noinline long v4l1_compat_set_frame_buffer(
 380                                         struct video_buffer *buffer,
 381                                         struct file *file,
 382                                         v4l2_kioctl drv)
 383 {
 384         long err;
 385         struct v4l2_framebuffer fbuf;
 386
 387         memset(&fbuf, 0, sizeof(fbuf));
 388         fbuf.base       = buffer->base;
 389         fbuf.fmt.height = buffer->height;
 390         fbuf.fmt.width  = buffer->width;
 391         switch (buffer->depth) {
 392         case 8:
 393                 fbuf.fmt.pixelformat = V4L2_PIX_FMT_RGB332;
 394                 break;
 395         case 15:
 396                 fbuf.fmt.pixelformat = V4L2_PIX_FMT_RGB555;
 397                 break;
 398         case 16:
 399                 fbuf.fmt.pixelformat = V4L2_PIX_FMT_RGB565;
 400                 break;
 401         case 24:
 402                 fbuf.fmt.pixelformat = V4L2_PIX_FMT_BGR24;
 403                 break;
 404         case 32:
 405                 fbuf.fmt.pixelformat = V4L2_PIX_FMT_BGR32;
 406                 break;
 407         }
 408         fbuf.fmt.bytesperline = buffer->bytesperline;
 409         err = drv(file, VIDIOC_S_FBUF, &fbuf);
 410         if (err < 0)
 411                 dprintk("VIDIOCSFBUF / VIDIOC_S_FBUF: %ld\n", err);
 412         return err;
 413 }
 414
 415 static noinline long v4l1_compat_get_win_cap_dimensions(
 416                                         struct video_window *win,
 417                                         struct file *file,
 418                                         v4l2_kioctl drv)
 419 {
 420         long err;
 421         struct v4l2_format *fmt;
 422
 423         fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
 424         if (!fmt) {
 425                 err = -ENOMEM;
 426                 return err;
 427         }
 428         memset(win, 0, sizeof(*win));
 429
 430         fmt->type = V4L2_BUF_TYPE_VIDEO_OVERLAY;
 431         err = drv(file, VIDIOC_G_FMT, fmt);
 432         if (err < 0)
 433                 dprintk("VIDIOCGWIN / VIDIOC_G_WIN: %ld\n", err);
 434         if (err == 0) {
 435                 win->x         = fmt->fmt.win.w.left;
 436                 win->y         = fmt->fmt.win.w.top;
 437                 win->width     = fmt->fmt.win.w.width;
 438                 win->height    = fmt->fmt.win.w.height;
 439                 win->chromakey = fmt->fmt.win.chromakey;
 440                 win->clips     = NULL;
 441                 win->clipcount = 0;
 442                 goto done;
 443         }
 444
 445         fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 446         err = drv(file, VIDIOC_G_FMT, fmt);
 447         if (err < 0) {
 448                 dprintk("VIDIOCGWIN / VIDIOC_G_FMT: %ld\n", err);
 449                 goto done;
 450         }
 451         win->x         = 0;
 452         win->y         = 0;
 453         win->width     = fmt->fmt.pix.width;
 454         win->height    = fmt->fmt.pix.height;
 455         win->chromakey = 0;
 456         win->clips     = NULL;
 457         win->clipcount = 0;
 458 done:
 459         kfree(fmt);
 460         return err;
 461 }
 462
 463 static noinline long v4l1_compat_set_win_cap_dimensions(
 464                                         struct video_window *win,
 465                                         struct file *file,
 466                                         v4l2_kioctl drv)
 467 {
 468         long err, err1, err2;
 469         struct v4l2_format *fmt;
 470
 471         fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
 472         if (!fmt) {
 473                 err = -ENOMEM;
 474                 return err;
 475         }
 476         fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 477         drv(file, VIDIOC_STREAMOFF, &fmt->type);
 478         err1 = drv(file, VIDIOC_G_FMT, fmt);
 479         if (err1 < 0)
 480                 dprintk("VIDIOCSWIN / VIDIOC_G_FMT: %ld\n", err1);
 481         if (err1 == 0) {
 482                 fmt->fmt.pix.width  = win->width;
 483                 fmt->fmt.pix.height = win->height;
 484                 fmt->fmt.pix.field  = V4L2_FIELD_ANY;
 485                 fmt->fmt.pix.bytesperline = 0;
 486                 err = drv(file, VIDIOC_S_FMT, fmt);
 487                 if (err < 0)
 488                         dprintk("VIDIOCSWIN / VIDIOC_S_FMT #1: %ld\n",
 489                                 err);
 490                 win->width  = fmt->fmt.pix.width;
 491                 win->height = fmt->fmt.pix.height;
 492         }
 493
 494         memset(fmt, 0, sizeof(*fmt));
 495         fmt->type = V4L2_BUF_TYPE_VIDEO_OVERLAY;
 496         fmt->fmt.win.w.left    = win->x;
 497         fmt->fmt.win.w.top     = win->y;
 498         fmt->fmt.win.w.width   = win->width;
 499         fmt->fmt.win.w.height  = win->height;
 500         fmt->fmt.win.chromakey = win->chromakey;
 501         fmt->fmt.win.clips     = (void __user *)win->clips;
 502         fmt->fmt.win.clipcount = win->clipcount;
 503         err2 = drv(file, VIDIOC_S_FMT, fmt);
 504         if (err2 < 0)
 505                 dprintk("VIDIOCSWIN / VIDIOC_S_FMT #2: %ld\n", err2);
 506
 507         if (err1 != 0 && err2 != 0)
 508                 err = err1;
 509         else
 510                 err = 0;
 511         kfree(fmt);
 512         return err;
 513 }
 514
 515 static noinline long v4l1_compat_turn_preview_on_off(
 516                                         int *on,
 517                                         struct file *file,
 518                                         v4l2_kioctl drv)
 519 {
 520         long err;
 521         enum v4l2_buf_type captype = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 522
 523         if (0 == *on) {
 524                 /* dirty hack time.  But v4l1 has no STREAMOFF
 525                  * equivalent in the API, and this one at
 526                  * least comes close ... */
 527                 drv(file, VIDIOC_STREAMOFF, &captype);
 528         }
 529         err = drv(file, VIDIOC_OVERLAY, on);
 530         if (err < 0)
 531                 dprintk("VIDIOCCAPTURE / VIDIOC_PREVIEW: %ld\n", err);
 532         return err;
 533 }
 534
 535 static noinline long v4l1_compat_get_input_info(
 536                                         struct video_channel *chan,
 537                                         struct file *file,
 538                                         v4l2_kioctl drv)
 539 {
 540         long err;
 541         struct v4l2_input       input2;
 542         v4l2_std_id             sid;
 543
 544         memset(&input2, 0, sizeof(input2));
 545         input2.index = chan->channel;
 546         err = drv(file, VIDIOC_ENUMINPUT, &input2);
 547         if (err < 0) {
 548                 dprintk("VIDIOCGCHAN / VIDIOC_ENUMINPUT: "
 549                         "channel=%d err=%ld\n", chan->channel, err);
 550                 goto done;
 551         }
 552         chan->channel = input2.index;
 553         memcpy(chan->name, input2.name,
 554                min(sizeof(chan->name), sizeof(input2.name)));
 555         chan->name[sizeof(chan->name) - 1] = 0;
 556         chan->tuners = (input2.type == V4L2_INPUT_TYPE_TUNER) ? 1 : 0;
 557         chan->flags = (chan->tuners) ? VIDEO_VC_TUNER : 0;
 558         switch (input2.type) {
 559         case V4L2_INPUT_TYPE_TUNER:
 560                 chan->type = VIDEO_TYPE_TV;
 561                 break;
 562         default:
 563         case V4L2_INPUT_TYPE_CAMERA:
 564                 chan->type = VIDEO_TYPE_CAMERA;
 565                 break;
 566         }
 567         chan->norm = 0;
 568         err = drv(file, VIDIOC_G_STD, &sid);
 569         if (err < 0)
 570                 dprintk("VIDIOCGCHAN / VIDIOC_G_STD: %ld\n", err);
 571         if (err == 0) {
 572                 if (sid & V4L2_STD_PAL)
 573                         chan->norm = VIDEO_MODE_PAL;
 574                 if (sid & V4L2_STD_NTSC)
 575                         chan->norm = VIDEO_MODE_NTSC;
 576                 if (sid & V4L2_STD_SECAM)
 577                         chan->norm = VIDEO_MODE_SECAM;
 578         }
 579 done:
 580         return err;
 581 }
 582
 583 static noinline long v4l1_compat_set_input(
 584                                         struct video_channel *chan,
 585                                         struct file *file,
 586                                         v4l2_kioctl drv)
 587 {
 588         long err;
 589         v4l2_std_id sid = 0;
 590
 591         err = drv(file, VIDIOC_S_INPUT, &chan->channel);
 592         if (err < 0)
 593                 dprintk("VIDIOCSCHAN / VIDIOC_S_INPUT: %ld\n", err);
 594         switch (chan->norm) {
 595         case VIDEO_MODE_PAL:
 596                 sid = V4L2_STD_PAL;
 597                 break;
 598         case VIDEO_MODE_NTSC:
 599                 sid = V4L2_STD_NTSC;
 600                 break;
 601         case VIDEO_MODE_SECAM:
 602                 sid = V4L2_STD_SECAM;
 603                 break;
 604         }
 605         if (0 != sid) {
 606                 err = drv(file, VIDIOC_S_STD, &sid);
 607                 if (err < 0)
 608                         dprintk("VIDIOCSCHAN / VIDIOC_S_STD: %ld\n", err);
 609         }
 610         return err;
 611 }
 612
 613 static noinline long v4l1_compat_get_picture(
 614                                         struct video_picture *pict,
 615                                         struct file *file,
 616                                         v4l2_kioctl drv)
 617 {
 618         long err;
 619         struct v4l2_format *fmt;
 620
 621         fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
 622         if (!fmt) {
 623                 err = -ENOMEM;
 624                 return err;
 625         }
 626
 627         pict->brightness = get_v4l_control(file,
 628                                            V4L2_CID_BRIGHTNESS, drv);
 629         pict->hue = get_v4l_control(file,
 630                                     V4L2_CID_HUE, drv);
 631         pict->contrast = get_v4l_control(file,
 632                                          V4L2_CID_CONTRAST, drv);
 633         pict->colour = get_v4l_control(file,
 634                                        V4L2_CID_SATURATION, drv);
 635         pict->whiteness = get_v4l_control(file,
 636                                           V4L2_CID_WHITENESS, drv);
 637
 638         fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 639         err = drv(file, VIDIOC_G_FMT, fmt);
 640         if (err < 0) {
 641                 dprintk("VIDIOCGPICT / VIDIOC_G_FMT: %ld\n", err);
 642                 goto done;
 643         }
 644
 645         pict->depth   = ((fmt->fmt.pix.bytesperline << 3)
 646                          + (fmt->fmt.pix.width - 1))
 647                          / fmt->fmt.pix.width;
 648         pict->palette = pixelformat_to_palette(
 649                 fmt->fmt.pix.pixelformat);
 650 done:
 651         kfree(fmt);
 652         return err;
 653 }
 654
 655 static noinline long v4l1_compat_set_picture(
 656                                         struct video_picture *pict,
 657                                         struct file *file,
 658                                         v4l2_kioctl drv)
 659 {
 660         long err;
 661         struct v4l2_framebuffer fbuf;
 662         int mem_err = 0, ovl_err = 0;
 663         struct v4l2_format *fmt;
 664
 665         fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
 666         if (!fmt) {
 667                 err = -ENOMEM;
 668                 return err;
 669         }
 670         memset(&fbuf, 0, sizeof(fbuf));
 671
 672         set_v4l_control(file,
 673                         V4L2_CID_BRIGHTNESS, pict->brightness, drv);
 674         set_v4l_control(file,
 675                         V4L2_CID_HUE, pict->hue, drv);
 676         set_v4l_control(file,
 677                         V4L2_CID_CONTRAST, pict->contrast, drv);
 678         set_v4l_control(file,
 679                         V4L2_CID_SATURATION, pict->colour, drv);
 680         set_v4l_control(file,
 681                         V4L2_CID_WHITENESS, pict->whiteness, drv);
 682         /*
 683          * V4L1 uses this ioctl to set both memory capture and overlay
 684          * pixel format, while V4L2 has two different ioctls for this.
 685          * Some cards may not support one or the other, and may support
 686          * different pixel formats for memory vs overlay.
 687          */
 688
 689         fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 690         err = drv(file, VIDIOC_G_FMT, fmt);
 691         /* If VIDIOC_G_FMT failed, then the driver likely doesn't
 692            support memory capture.  Trying to set the memory capture
 693            parameters would be pointless.  */
 694         if (err < 0) {
 695                 dprintk("VIDIOCSPICT / VIDIOC_G_FMT: %ld\n", err);
 696                 mem_err = -1000;  /* didn't even try */
 697         } else if (fmt->fmt.pix.pixelformat !=
 698                  palette_to_pixelformat(pict->palette)) {
 699                 fmt->fmt.pix.pixelformat = palette_to_pixelformat(
 700                         pict->palette);
 701                 mem_err = drv(file, VIDIOC_S_FMT, fmt);
 702                 if (mem_err < 0)
 703                         dprintk("VIDIOCSPICT / VIDIOC_S_FMT: %d\n",
 704                                 mem_err);
 705         }
 706
 707         err = drv(file, VIDIOC_G_FBUF, &fbuf);
 708         /* If VIDIOC_G_FBUF failed, then the driver likely doesn't
 709            support overlay.  Trying to set the overlay parameters
 710            would be quite pointless.  */
 711         if (err < 0) {
 712                 dprintk("VIDIOCSPICT / VIDIOC_G_FBUF: %ld\n", err);
 713                 ovl_err = -1000;  /* didn't even try */
 714         } else if (fbuf.fmt.pixelformat !=
 715                  palette_to_pixelformat(pict->palette)) {
 716                 fbuf.fmt.pixelformat = palette_to_pixelformat(
 717                         pict->palette);
 718                 ovl_err = drv(file, VIDIOC_S_FBUF, &fbuf);
 719                 if (ovl_err < 0)
 720                         dprintk("VIDIOCSPICT / VIDIOC_S_FBUF: %d\n",
 721                                 ovl_err);
 722         }
 723         if (ovl_err < 0 && mem_err < 0) {
 724                 /* ioctl failed, couldn't set either parameter */
 725                 if (mem_err != -1000)
 726                         err = mem_err;
 727                 else if (ovl_err == -EPERM)
 728                         err = 0;
 729                 else
 730                         err = ovl_err;
 731         } else
 732                 err = 0;
 733         kfree(fmt);
 734         return err;
 735 }
 736
 737 static noinline long v4l1_compat_get_tuner(
 738                                         struct video_tuner *tun,
 739                                         struct file *file,
 740                                         v4l2_kioctl drv)
 741 {
 742         long err;
 743         int i;
 744         struct v4l2_tuner       tun2;
 745         struct v4l2_standard    std2;
 746         v4l2_std_id             sid;
 747
 748         memset(&tun2, 0, sizeof(tun2));
 749         err = drv(file, VIDIOC_G_TUNER, &tun2);
 750         if (err < 0) {
 751                 dprintk("VIDIOCGTUNER / VIDIOC_G_TUNER: %ld\n", err);
 752                 goto done;
 753         }
 754         memcpy(tun->name, tun2.name,
 755                min(sizeof(tun->name), sizeof(tun2.name)));
 756         tun->name[sizeof(tun->name) - 1] = 0;
 757         tun->rangelow = tun2.rangelow;
 758         tun->rangehigh = tun2.rangehigh;
 759         tun->flags = 0;
 760         tun->mode = VIDEO_MODE_AUTO;
 761
 762         for (i = 0; i < 64; i++) {
 763                 memset(&std2, 0, sizeof(std2));
 764                 std2.index = i;
 765                 if (0 != drv(file, VIDIOC_ENUMSTD, &std2))
 766                         break;
 767                 if (std2.id & V4L2_STD_PAL)
 768                         tun->flags |= VIDEO_TUNER_PAL;
 769                 if (std2.id & V4L2_STD_NTSC)
 770                         tun->flags |= VIDEO_TUNER_NTSC;
 771                 if (std2.id & V4L2_STD_SECAM)
 772                         tun->flags |= VIDEO_TUNER_SECAM;
 773         }
 774
 775         err = drv(file, VIDIOC_G_STD, &sid);
 776         if (err < 0)
 777                 dprintk("VIDIOCGTUNER / VIDIOC_G_STD: %ld\n", err);
 778         if (err == 0) {
 779                 if (sid & V4L2_STD_PAL)
 780                         tun->mode = VIDEO_MODE_PAL;
 781                 if (sid & V4L2_STD_NTSC)
 782                         tun->mode = VIDEO_MODE_NTSC;
 783                 if (sid & V4L2_STD_SECAM)
 784                         tun->mode = VIDEO_MODE_SECAM;
 785         }
 786
 787         if (tun2.capability & V4L2_TUNER_CAP_LOW)
 788                 tun->flags |= VIDEO_TUNER_LOW;
 789         if (tun2.rxsubchans & V4L2_TUNER_SUB_STEREO)
 790                 tun->flags |= VIDEO_TUNER_STEREO_ON;
 791         tun->signal = tun2.signal;
 792 done:
 793         return err;
 794 }
 795
 796 static noinline long v4l1_compat_select_tuner(
 797                                         struct video_tuner *tun,
 798                                         struct file *file,
 799                                         v4l2_kioctl drv)
 800 {
 801         long err;
 802         struct v4l2_tuner       t;/*84 bytes on x86_64*/
 803         memset(&t, 0, sizeof(t));
 804
 805         t.index = tun->tuner;
 806
 807         err = drv(file, VIDIOC_S_INPUT, &t);
 808         if (err < 0)
 809                 dprintk("VIDIOCSTUNER / VIDIOC_S_INPUT: %ld\n", err);
 810         return err;
 811 }
 812
 813 static noinline long v4l1_compat_get_frequency(
 814                                         unsigned long *freq,
 815                                         struct file *file,
 816                                         v4l2_kioctl drv)
 817 {
 818         long err;
 819         struct v4l2_frequency   freq2;
 820         memset(&freq2, 0, sizeof(freq2));
 821
 822         freq2.tuner = 0;
 823         err = drv(file, VIDIOC_G_FREQUENCY, &freq2);
 824         if (err < 0)
 825                 dprintk("VIDIOCGFREQ / VIDIOC_G_FREQUENCY: %ld\n", err);
 826         if (0 == err)
 827                 *freq = freq2.frequency;
 828         return err;
 829 }
 830
 831 static noinline long v4l1_compat_set_frequency(
 832                                         unsigned long *freq,
 833                                         struct file *file,
 834                                         v4l2_kioctl drv)
 835 {
 836         long err;
 837         struct v4l2_frequency   freq2;
 838         memset(&freq2, 0, sizeof(freq2));
 839
 840         drv(file, VIDIOC_G_FREQUENCY, &freq2);
 841         freq2.frequency = *freq;
 842         err = drv(file, VIDIOC_S_FREQUENCY, &freq2);
 843         if (err < 0)
 844                 dprintk("VIDIOCSFREQ / VIDIOC_S_FREQUENCY: %ld\n", err);
 845         return err;
 846 }
 847
 848 static noinline long v4l1_compat_get_audio(
 849                                         struct video_audio *aud,
 850                                         struct file *file,
 851                                         v4l2_kioctl drv)
 852 {
 853         long err;
 854         int i;
 855         struct v4l2_queryctrl   qctrl2;
 856         struct v4l2_audio       aud2;
 857         struct v4l2_tuner       tun2;
 858         memset(&aud2, 0, sizeof(aud2));
 859
 860         err = drv(file, VIDIOC_G_AUDIO, &aud2);
 861         if (err < 0) {
 862                 dprintk("VIDIOCGAUDIO / VIDIOC_G_AUDIO: %ld\n", err);
 863                 goto done;
 864         }
 865         memcpy(aud->name, aud2.name,
 866                min(sizeof(aud->name), sizeof(aud2.name)));
 867         aud->name[sizeof(aud->name) - 1] = 0;
 868         aud->audio = aud2.index;
 869         aud->flags = 0;
 870         i = get_v4l_control(file, V4L2_CID_AUDIO_VOLUME, drv);
 871         if (i >= 0) {
 872                 aud->volume = i;
 873                 aud->flags |= VIDEO_AUDIO_VOLUME;
 874         }
 875         i = get_v4l_control(file, V4L2_CID_AUDIO_BASS, drv);
 876         if (i >= 0) {
 877                 aud->bass = i;
 878                 aud->flags |= VIDEO_AUDIO_BASS;
 879         }
 880         i = get_v4l_control(file, V4L2_CID_AUDIO_TREBLE, drv);
 881         if (i >= 0) {
 882                 aud->treble = i;
 883                 aud->flags |= VIDEO_AUDIO_TREBLE;
 884         }
 885         i = get_v4l_control(file, V4L2_CID_AUDIO_BALANCE, drv);
 886         if (i >= 0) {
 887                 aud->balance = i;
 888                 aud->flags |= VIDEO_AUDIO_BALANCE;
 889         }
 890         i = get_v4l_control(file, V4L2_CID_AUDIO_MUTE, drv);
 891         if (i >= 0) {
 892                 if (i)
 893                         aud->flags |= VIDEO_AUDIO_MUTE;
 894                 aud->flags |= VIDEO_AUDIO_MUTABLE;
 895         }
 896         aud->step = 1;
 897         qctrl2.id = V4L2_CID_AUDIO_VOLUME;
 898         if (drv(file, VIDIOC_QUERYCTRL, &qctrl2) == 0 &&
 899             !(qctrl2.flags & V4L2_CTRL_FLAG_DISABLED))
 900                 aud->step = qctrl2.step;
 901         aud->mode = 0;
 902
 903         memset(&tun2, 0, sizeof(tun2));
 904         err = drv(file, VIDIOC_G_TUNER, &tun2);
 905         if (err < 0) {
 906                 dprintk("VIDIOCGAUDIO / VIDIOC_G_TUNER: %ld\n", err);
 907                 err = 0;
 908                 goto done;
 909         }
 910
 911         if (tun2.rxsubchans & V4L2_TUNER_SUB_LANG2)
 912                 aud->mode = VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
 913         else if (tun2.rxsubchans & V4L2_TUNER_SUB_STEREO)
 914                 aud->mode = VIDEO_SOUND_STEREO;
 915         else if (tun2.rxsubchans & V4L2_TUNER_SUB_MONO)
 916                 aud->mode = VIDEO_SOUND_MONO;
 917 done:
 918         return err;
 919 }
 920
 921 static noinline long v4l1_compat_set_audio(
 922                                         struct video_audio *aud,
 923                                         struct file *file,
 924                                         v4l2_kioctl drv)
 925 {
 926         long err;
 927         struct v4l2_audio       aud2;
 928         struct v4l2_tuner       tun2;
 929
 930         memset(&aud2, 0, sizeof(aud2));
 931         memset(&tun2, 0, sizeof(tun2));
 932
 933         aud2.index = aud->audio;
 934         err = drv(file, VIDIOC_S_AUDIO, &aud2);
 935         if (err < 0) {
 936                 dprintk("VIDIOCSAUDIO / VIDIOC_S_AUDIO: %ld\n", err);
 937                 goto done;
 938         }
 939
 940         set_v4l_control(file, V4L2_CID_AUDIO_VOLUME,
 941                         aud->volume, drv);
 942         set_v4l_control(file, V4L2_CID_AUDIO_BASS,
 943                         aud->bass, drv);
 944         set_v4l_control(file, V4L2_CID_AUDIO_TREBLE,
 945                         aud->treble, drv);
 946         set_v4l_control(file, V4L2_CID_AUDIO_BALANCE,
 947                         aud->balance, drv);
 948         set_v4l_control(file, V4L2_CID_AUDIO_MUTE,
 949                         !!(aud->flags & VIDEO_AUDIO_MUTE), drv);
 950
 951         err = drv(file, VIDIOC_G_TUNER, &tun2);
 952         if (err < 0)
 953                 dprintk("VIDIOCSAUDIO / VIDIOC_G_TUNER: %ld\n", err);
 954         if (err == 0) {
 955                 switch (aud->mode) {
 956                 default:
 957                 case VIDEO_SOUND_MONO:
 958                 case VIDEO_SOUND_LANG1:
 959                         tun2.audmode = V4L2_TUNER_MODE_MONO;
 960                         break;
 961                 case VIDEO_SOUND_STEREO:
 962                         tun2.audmode = V4L2_TUNER_MODE_STEREO;
 963                         break;
 964                 case VIDEO_SOUND_LANG2:
 965                         tun2.audmode = V4L2_TUNER_MODE_LANG2;
 966                         break;
 967                 }
 968                 err = drv(file, VIDIOC_S_TUNER, &tun2);
 969                 if (err < 0)
 970                         dprintk("VIDIOCSAUDIO / VIDIOC_S_TUNER: %ld\n", err);
 971         }
 972         err = 0;
 973 done:
 974         return err;
 975 }
 976
 977 static noinline long v4l1_compat_capture_frame(
 978                                         struct video_mmap *mm,
 979                                         struct file *file,
 980                                         v4l2_kioctl drv)
 981 {
 982         long err;
 983         enum v4l2_buf_type      captype = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 984         struct v4l2_buffer      buf;
 985         struct v4l2_format      *fmt;
 986
 987         fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
 988         if (!fmt) {
 989                 err = -ENOMEM;
 990                 return err;
 991         }
 992         memset(&buf, 0, sizeof(buf));
 993
 994         fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 995         err = drv(file, VIDIOC_G_FMT, fmt);
 996         if (err < 0) {
 997                 dprintk("VIDIOCMCAPTURE / VIDIOC_G_FMT: %ld\n", err);
 998                 goto done;
 999         }
1000         if (mm->width   != fmt->fmt.pix.width  ||
1001             mm->height  != fmt->fmt.pix.height ||
1002             palette_to_pixelformat(mm->format) !=
1003             fmt->fmt.pix.pixelformat) {
1004                 /* New capture format...  */
1005                 fmt->fmt.pix.width = mm->width;
1006                 fmt->fmt.pix.height = mm->height;
1007                 fmt->fmt.pix.pixelformat =
1008                         palette_to_pixelformat(mm->format);
1009                 fmt->fmt.pix.field = V4L2_FIELD_ANY;
1010                 fmt->fmt.pix.bytesperline = 0;
1011                 err = drv(file, VIDIOC_S_FMT, fmt);
1012                 if (err < 0) {
1013                         dprintk("VIDIOCMCAPTURE / VIDIOC_S_FMT: %ld\n", err);
1014                         goto done;
1015                 }
1016         }
1017         buf.index = mm->frame;
1018         buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1019         err = drv(file, VIDIOC_QUERYBUF, &buf);
1020         if (err < 0) {
1021                 dprintk("VIDIOCMCAPTURE / VIDIOC_QUERYBUF: %ld\n", err);
1022                 goto done;
1023         }
1024         err = drv(file, VIDIOC_QBUF, &buf);
1025         if (err < 0) {
1026                 dprintk("VIDIOCMCAPTURE / VIDIOC_QBUF: %ld\n", err);
1027                 goto done;
1028         }
1029         err = drv(file, VIDIOC_STREAMON, &captype);
1030         if (err < 0)
1031                 dprintk("VIDIOCMCAPTURE / VIDIOC_STREAMON: %ld\n", err);
1032 done:
1033         kfree(fmt);
1034         return err;
1035 }
1036
1037 static noinline long v4l1_compat_sync(
1038                                 int *i,
1039                                 struct file *file,
1040                                 v4l2_kioctl drv)
1041 {
1042         long err;
1043         enum v4l2_buf_type captype = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1044         struct v4l2_buffer buf;
1045         struct poll_wqueues *pwq;
1046
1047         memset(&buf, 0, sizeof(buf));
1048         buf.index = *i;
1049         buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1050         err = drv(file, VIDIOC_QUERYBUF, &buf);
1051         if (err < 0) {
1052                 /*  No such buffer */
1053                 dprintk("VIDIOCSYNC / VIDIOC_QUERYBUF: %ld\n", err);
1054                 goto done;
1055         }
1056         if (!(buf.flags & V4L2_BUF_FLAG_MAPPED)) {
1057                 /* Buffer is not mapped  */
1058                 err = -EINVAL;
1059                 goto done;
1060         }
1061
1062         /* make sure capture actually runs so we don't block forever */
1063         err = drv(file, VIDIOC_STREAMON, &captype);
1064         if (err < 0) {
1065                 dprintk("VIDIOCSYNC / VIDIOC_STREAMON: %ld\n", err);
1066                 goto done;
1067         }
1068
1069         pwq = kmalloc(sizeof(*pwq), GFP_KERNEL);
1070         /*  Loop as long as the buffer is queued, but not done  */
1071         while ((buf.flags & (V4L2_BUF_FLAG_QUEUED | V4L2_BUF_FLAG_DONE))
1072                                                 == V4L2_BUF_FLAG_QUEUED) {
1073                 err = poll_one(file, pwq);
1074                 if (err < 0 ||  /* error or sleep was interrupted  */
1075                     err == 0)   /* timeout? Shouldn't occur.  */
1076                         break;
1077                 err = drv(file, VIDIOC_QUERYBUF, &buf);
1078                 if (err < 0)
1079                         dprintk("VIDIOCSYNC / VIDIOC_QUERYBUF: %ld\n", err);
1080         }
1081         kfree(pwq);
1082         if (!(buf.flags & V4L2_BUF_FLAG_DONE)) /* not done */
1083                 goto done;
1084         do {
1085                 err = drv(file, VIDIOC_DQBUF, &buf);
1086                 if (err < 0)
1087                         dprintk("VIDIOCSYNC / VIDIOC_DQBUF: %ld\n", err);
1088         } while (err == 0 && buf.index != *i);
1089 done:
1090         return err;
1091 }
1092
1093 static noinline long v4l1_compat_get_vbi_format(
1094                                 struct vbi_format *fmt,
1095                                 struct file *file,
1096                                 v4l2_kioctl drv)
1097 {
1098         long err;
1099         struct v4l2_format *fmt2;
1100
1101         fmt2 = kzalloc(sizeof(*fmt2), GFP_KERNEL);
1102         if (!fmt2) {
1103                 err = -ENOMEM;
1104                 return err;
1105         }
1106         fmt2->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1107
1108         err = drv(file, VIDIOC_G_FMT, fmt2);
1109         if (err < 0) {
1110                 dprintk("VIDIOCGVBIFMT / VIDIOC_G_FMT: %ld\n", err);
1111                 goto done;
1112         }
1113         if (fmt2->fmt.vbi.sample_format != V4L2_PIX_FMT_GREY) {
1114                 err = -EINVAL;
1115                 goto done;
1116         }
1117         memset(fmt, 0, sizeof(*fmt));
1118         fmt->samples_per_line = fmt2->fmt.vbi.samples_per_line;
1119         fmt->sampling_rate    = fmt2->fmt.vbi.sampling_rate;
1120         fmt->sample_format    = VIDEO_PALETTE_RAW;
1121         fmt->start[0]         = fmt2->fmt.vbi.start[0];
1122         fmt->count[0]         = fmt2->fmt.vbi.count[0];
1123         fmt->start[1]         = fmt2->fmt.vbi.start[1];
1124         fmt->count[1]         = fmt2->fmt.vbi.count[1];
1125         fmt->flags            = fmt2->fmt.vbi.flags & 0x03;
1126 done:
1127         kfree(fmt2);
1128         return err;
1129 }
1130
1131 static noinline long v4l1_compat_set_vbi_format(
1132                                 struct vbi_format *fmt,
1133                                 struct file *file,
1134                                 v4l2_kioctl drv)
1135 {
1136         long err;
1137         struct v4l2_format      *fmt2 = NULL;
1138
1139         if (VIDEO_PALETTE_RAW != fmt->sample_format) {
1140                 err = -EINVAL;
1141                 return err;
1142         }
1143
1144         fmt2 = kzalloc(sizeof(*fmt2), GFP_KERNEL);
1145         if (!fmt2) {
1146                 err = -ENOMEM;
1147                 return err;
1148         }
1149         fmt2->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1150         fmt2->fmt.vbi.samples_per_line = fmt->samples_per_line;
1151         fmt2->fmt.vbi.sampling_rate    = fmt->sampling_rate;
1152         fmt2->fmt.vbi.sample_format    = V4L2_PIX_FMT_GREY;
1153         fmt2->fmt.vbi.start[0]         = fmt->start[0];
1154         fmt2->fmt.vbi.count[0]         = fmt->count[0];
1155         fmt2->fmt.vbi.start[1]         = fmt->start[1];
1156         fmt2->fmt.vbi.count[1]         = fmt->count[1];
1157         fmt2->fmt.vbi.flags            = fmt->flags;
1158         err = drv(file, VIDIOC_TRY_FMT, fmt2);
1159         if (err < 0) {
1160                 dprintk("VIDIOCSVBIFMT / VIDIOC_TRY_FMT: %ld\n", err);
1161                 goto done;
1162         }
1163
1164         if (fmt2->fmt.vbi.samples_per_line != fmt->samples_per_line ||
1165             fmt2->fmt.vbi.sampling_rate    != fmt->sampling_rate    ||
1166             fmt2->fmt.vbi.sample_format    != V4L2_PIX_FMT_GREY     ||
1167             fmt2->fmt.vbi.start[0]         != fmt->start[0]         ||
1168             fmt2->fmt.vbi.count[0]         != fmt->count[0]         ||
1169             fmt2->fmt.vbi.start[1]         != fmt->start[1]         ||
1170             fmt2->fmt.vbi.count[1]         != fmt->count[1]         ||
1171             fmt2->fmt.vbi.flags            != fmt->flags) {
1172                 err = -EINVAL;
1173                 goto done;
1174         }
1175         err = drv(file, VIDIOC_S_FMT, fmt2);
1176         if (err < 0)
1177                 dprintk("VIDIOCSVBIFMT / VIDIOC_S_FMT: %ld\n", err);
1178 done:
1179         kfree(fmt2);
1180         return err;
1181 }
1182
1183 /*
1184  *      This function is exported.
1185  */
1186 long
1187 v4l_compat_translate_ioctl(struct file          *file,
1188                            int                  cmd,
1189                            void                 *arg,
1190                            v4l2_kioctl          drv)
1191 {
1192         long err;
1193
1194         switch (cmd) {
1195         case VIDIOCGCAP:        /* capability */
1196                 err = v4l1_compat_get_capabilities(arg, file, drv);
1197                 break;
1198         case VIDIOCGFBUF: /*  get frame buffer  */
1199                 err = v4l1_compat_get_frame_buffer(arg, file, drv);
1200                 break;
1201         case VIDIOCSFBUF: /*  set frame buffer  */
1202                 err = v4l1_compat_set_frame_buffer(arg, file, drv);
1203                 break;
1204         case VIDIOCGWIN: /*  get window or capture dimensions  */
1205                 err = v4l1_compat_get_win_cap_dimensions(arg, file, drv);
1206                 break;
1207         case VIDIOCSWIN: /*  set window and/or capture dimensions  */
1208                 err = v4l1_compat_set_win_cap_dimensions(arg, file, drv);
1209                 break;
1210         case VIDIOCCAPTURE: /*  turn on/off preview  */
1211                 err = v4l1_compat_turn_preview_on_off(arg, file, drv);
1212                 break;
1213         case VIDIOCGCHAN: /*  get input information  */
1214                 err = v4l1_compat_get_input_info(arg, file, drv);
1215                 break;
1216         case VIDIOCSCHAN: /*  set input  */
1217                 err = v4l1_compat_set_input(arg, file, drv);
1218                 break;
1219         case VIDIOCGPICT: /*  get tone controls & partial capture format  */
1220                 err = v4l1_compat_get_picture(arg, file, drv);
1221                 break;
1222         case VIDIOCSPICT: /*  set tone controls & partial capture format  */
1223                 err = v4l1_compat_set_picture(arg, file, drv);
1224                 break;
1225         case VIDIOCGTUNER: /*  get tuner information  */
1226                 err = v4l1_compat_get_tuner(arg, file, drv);
1227                 break;
1228         case VIDIOCSTUNER: /*  select a tuner input  */
1229                 err = v4l1_compat_select_tuner(arg, file, drv);
1230                 break;
1231         case VIDIOCGFREQ: /*  get frequency  */
1232                 err = v4l1_compat_get_frequency(arg, file, drv);
1233                 break;
1234         case VIDIOCSFREQ: /*  set frequency  */
1235                 err = v4l1_compat_set_frequency(arg, file, drv);
1236                 break;
1237         case VIDIOCGAUDIO: /*  get audio properties/controls  */
1238                 err = v4l1_compat_get_audio(arg, file, drv);
1239                 break;
1240         case VIDIOCSAUDIO: /*  set audio controls  */
1241                 err = v4l1_compat_set_audio(arg, file, drv);
1242                 break;
1243         case VIDIOCMCAPTURE: /*  capture a frame  */
1244                 err = v4l1_compat_capture_frame(arg, file, drv);
1245                 break;
1246         case VIDIOCSYNC: /*  wait for a frame  */
1247                 err = v4l1_compat_sync(arg, file, drv);
1248                 break;
1249         case VIDIOCGVBIFMT: /* query VBI data capture format */
1250                 err = v4l1_compat_get_vbi_format(arg, file, drv);
1251                 break;
1252         case VIDIOCSVBIFMT:
1253                 err = v4l1_compat_set_vbi_format(arg, file, drv);
1254                 break;
1255         default:
1256                 err = -ENOIOCTLCMD;
1257                 break;
1258         }
1259
1260         return err;
1261 }
1262 EXPORT_SYMBOL(v4l_compat_translate_ioctl);
1263
1264 /*
1265  * Local variables:
1266  * c-basic-offset: 8
1267  * End:
1268  */