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                 if (sid == V4L2_STD_ALL)
 579                         chan->norm = VIDEO_MODE_AUTO;
 580         }
 581 done:
 582         return err;
 583 }
 584
 585 static noinline long v4l1_compat_set_input(
 586                                         struct video_channel *chan,
 587                                         struct file *file,
 588                                         v4l2_kioctl drv)
 589 {
 590         long err;
 591         v4l2_std_id sid = 0;
 592
 593         err = drv(file, VIDIOC_S_INPUT, &chan->channel);
 594         if (err < 0)
 595                 dprintk("VIDIOCSCHAN / VIDIOC_S_INPUT: %ld\n", err);
 596         switch (chan->norm) {
 597         case VIDEO_MODE_PAL:
 598                 sid = V4L2_STD_PAL;
 599                 break;
 600         case VIDEO_MODE_NTSC:
 601                 sid = V4L2_STD_NTSC;
 602                 break;
 603         case VIDEO_MODE_SECAM:
 604                 sid = V4L2_STD_SECAM;
 605                 break;
 606         case VIDEO_MODE_AUTO:
 607                 sid = V4L2_STD_ALL;
 608                 break;
 609         }
 610         if (0 != sid) {
 611                 err = drv(file, VIDIOC_S_STD, &sid);
 612                 if (err < 0)
 613                         dprintk("VIDIOCSCHAN / VIDIOC_S_STD: %ld\n", err);
 614         }
 615         return err;
 616 }
 617
 618 static noinline long v4l1_compat_get_picture(
 619                                         struct video_picture *pict,
 620                                         struct file *file,
 621                                         v4l2_kioctl drv)
 622 {
 623         long err;
 624         struct v4l2_format *fmt;
 625
 626         fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
 627         if (!fmt) {
 628                 err = -ENOMEM;
 629                 return err;
 630         }
 631
 632         pict->brightness = get_v4l_control(file,
 633                                            V4L2_CID_BRIGHTNESS, drv);
 634         pict->hue = get_v4l_control(file,
 635                                     V4L2_CID_HUE, drv);
 636         pict->contrast = get_v4l_control(file,
 637                                          V4L2_CID_CONTRAST, drv);
 638         pict->colour = get_v4l_control(file,
 639                                        V4L2_CID_SATURATION, drv);
 640         pict->whiteness = get_v4l_control(file,
 641                                           V4L2_CID_WHITENESS, drv);
 642
 643         fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 644         err = drv(file, VIDIOC_G_FMT, fmt);
 645         if (err < 0) {
 646                 dprintk("VIDIOCGPICT / VIDIOC_G_FMT: %ld\n", err);
 647                 goto done;
 648         }
 649
 650         pict->depth   = ((fmt->fmt.pix.bytesperline << 3)
 651                          + (fmt->fmt.pix.width - 1))
 652                          / fmt->fmt.pix.width;
 653         pict->palette = pixelformat_to_palette(
 654                 fmt->fmt.pix.pixelformat);
 655 done:
 656         kfree(fmt);
 657         return err;
 658 }
 659
 660 static noinline long v4l1_compat_set_picture(
 661                                         struct video_picture *pict,
 662                                         struct file *file,
 663                                         v4l2_kioctl drv)
 664 {
 665         long err;
 666         struct v4l2_framebuffer fbuf;
 667         int mem_err = 0, ovl_err = 0;
 668         struct v4l2_format *fmt;
 669
 670         fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
 671         if (!fmt) {
 672                 err = -ENOMEM;
 673                 return err;
 674         }
 675         memset(&fbuf, 0, sizeof(fbuf));
 676
 677         set_v4l_control(file,
 678                         V4L2_CID_BRIGHTNESS, pict->brightness, drv);
 679         set_v4l_control(file,
 680                         V4L2_CID_HUE, pict->hue, drv);
 681         set_v4l_control(file,
 682                         V4L2_CID_CONTRAST, pict->contrast, drv);
 683         set_v4l_control(file,
 684                         V4L2_CID_SATURATION, pict->colour, drv);
 685         set_v4l_control(file,
 686                         V4L2_CID_WHITENESS, pict->whiteness, drv);
 687         /*
 688          * V4L1 uses this ioctl to set both memory capture and overlay
 689          * pixel format, while V4L2 has two different ioctls for this.
 690          * Some cards may not support one or the other, and may support
 691          * different pixel formats for memory vs overlay.
 692          */
 693
 694         fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 695         err = drv(file, VIDIOC_G_FMT, fmt);
 696         /* If VIDIOC_G_FMT failed, then the driver likely doesn't
 697            support memory capture.  Trying to set the memory capture
 698            parameters would be pointless.  */
 699         if (err < 0) {
 700                 dprintk("VIDIOCSPICT / VIDIOC_G_FMT: %ld\n", err);
 701                 mem_err = -1000;  /* didn't even try */
 702         } else if (fmt->fmt.pix.pixelformat !=
 703                  palette_to_pixelformat(pict->palette)) {
 704                 fmt->fmt.pix.pixelformat = palette_to_pixelformat(
 705                         pict->palette);
 706                 mem_err = drv(file, VIDIOC_S_FMT, fmt);
 707                 if (mem_err < 0)
 708                         dprintk("VIDIOCSPICT / VIDIOC_S_FMT: %d\n",
 709                                 mem_err);
 710         }
 711
 712         err = drv(file, VIDIOC_G_FBUF, &fbuf);
 713         /* If VIDIOC_G_FBUF failed, then the driver likely doesn't
 714            support overlay.  Trying to set the overlay parameters
 715            would be quite pointless.  */
 716         if (err < 0) {
 717                 dprintk("VIDIOCSPICT / VIDIOC_G_FBUF: %ld\n", err);
 718                 ovl_err = -1000;  /* didn't even try */
 719         } else if (fbuf.fmt.pixelformat !=
 720                  palette_to_pixelformat(pict->palette)) {
 721                 fbuf.fmt.pixelformat = palette_to_pixelformat(
 722                         pict->palette);
 723                 ovl_err = drv(file, VIDIOC_S_FBUF, &fbuf);
 724                 if (ovl_err < 0)
 725                         dprintk("VIDIOCSPICT / VIDIOC_S_FBUF: %d\n",
 726                                 ovl_err);
 727         }
 728         if (ovl_err < 0 && mem_err < 0) {
 729                 /* ioctl failed, couldn't set either parameter */
 730                 if (mem_err != -1000)
 731                         err = mem_err;
 732                 else if (ovl_err == -EPERM)
 733                         err = 0;
 734                 else
 735                         err = ovl_err;
 736         } else
 737                 err = 0;
 738         kfree(fmt);
 739         return err;
 740 }
 741
 742 static noinline long v4l1_compat_get_tuner(
 743                                         struct video_tuner *tun,
 744                                         struct file *file,
 745                                         v4l2_kioctl drv)
 746 {
 747         long err;
 748         int i;
 749         struct v4l2_tuner       tun2;
 750         struct v4l2_standard    std2;
 751         v4l2_std_id             sid;
 752
 753         memset(&tun2, 0, sizeof(tun2));
 754         err = drv(file, VIDIOC_G_TUNER, &tun2);
 755         if (err < 0) {
 756                 dprintk("VIDIOCGTUNER / VIDIOC_G_TUNER: %ld\n", err);
 757                 goto done;
 758         }
 759         memcpy(tun->name, tun2.name,
 760                min(sizeof(tun->name), sizeof(tun2.name)));
 761         tun->name[sizeof(tun->name) - 1] = 0;
 762         tun->rangelow = tun2.rangelow;
 763         tun->rangehigh = tun2.rangehigh;
 764         tun->flags = 0;
 765         tun->mode = VIDEO_MODE_AUTO;
 766
 767         for (i = 0; i < 64; i++) {
 768                 memset(&std2, 0, sizeof(std2));
 769                 std2.index = i;
 770                 if (0 != drv(file, VIDIOC_ENUMSTD, &std2))
 771                         break;
 772                 if (std2.id & V4L2_STD_PAL)
 773                         tun->flags |= VIDEO_TUNER_PAL;
 774                 if (std2.id & V4L2_STD_NTSC)
 775                         tun->flags |= VIDEO_TUNER_NTSC;
 776                 if (std2.id & V4L2_STD_SECAM)
 777                         tun->flags |= VIDEO_TUNER_SECAM;
 778         }
 779
 780         err = drv(file, VIDIOC_G_STD, &sid);
 781         if (err < 0)
 782                 dprintk("VIDIOCGTUNER / VIDIOC_G_STD: %ld\n", err);
 783         if (err == 0) {
 784                 if (sid & V4L2_STD_PAL)
 785                         tun->mode = VIDEO_MODE_PAL;
 786                 if (sid & V4L2_STD_NTSC)
 787                         tun->mode = VIDEO_MODE_NTSC;
 788                 if (sid & V4L2_STD_SECAM)
 789                         tun->mode = VIDEO_MODE_SECAM;
 790         }
 791
 792         if (tun2.capability & V4L2_TUNER_CAP_LOW)
 793                 tun->flags |= VIDEO_TUNER_LOW;
 794         if (tun2.rxsubchans & V4L2_TUNER_SUB_STEREO)
 795                 tun->flags |= VIDEO_TUNER_STEREO_ON;
 796         tun->signal = tun2.signal;
 797 done:
 798         return err;
 799 }
 800
 801 static noinline long v4l1_compat_select_tuner(
 802                                         struct video_tuner *tun,
 803                                         struct file *file,
 804                                         v4l2_kioctl drv)
 805 {
 806         long err;
 807         struct v4l2_tuner       t;/*84 bytes on x86_64*/
 808         memset(&t, 0, sizeof(t));
 809
 810         t.index = tun->tuner;
 811
 812         err = drv(file, VIDIOC_S_TUNER, &t);
 813         if (err < 0)
 814                 dprintk("VIDIOCSTUNER / VIDIOC_S_TUNER: %ld\n", err);
 815         return err;
 816 }
 817
 818 static noinline long v4l1_compat_get_frequency(
 819                                         unsigned long *freq,
 820                                         struct file *file,
 821                                         v4l2_kioctl drv)
 822 {
 823         long err;
 824         struct v4l2_frequency   freq2;
 825         memset(&freq2, 0, sizeof(freq2));
 826
 827         freq2.tuner = 0;
 828         err = drv(file, VIDIOC_G_FREQUENCY, &freq2);
 829         if (err < 0)
 830                 dprintk("VIDIOCGFREQ / VIDIOC_G_FREQUENCY: %ld\n", err);
 831         if (0 == err)
 832                 *freq = freq2.frequency;
 833         return err;
 834 }
 835
 836 static noinline long v4l1_compat_set_frequency(
 837                                         unsigned long *freq,
 838                                         struct file *file,
 839                                         v4l2_kioctl drv)
 840 {
 841         long err;
 842         struct v4l2_frequency   freq2;
 843         memset(&freq2, 0, sizeof(freq2));
 844
 845         drv(file, VIDIOC_G_FREQUENCY, &freq2);
 846         freq2.frequency = *freq;
 847         err = drv(file, VIDIOC_S_FREQUENCY, &freq2);
 848         if (err < 0)
 849                 dprintk("VIDIOCSFREQ / VIDIOC_S_FREQUENCY: %ld\n", err);
 850         return err;
 851 }
 852
 853 static noinline long v4l1_compat_get_audio(
 854                                         struct video_audio *aud,
 855                                         struct file *file,
 856                                         v4l2_kioctl drv)
 857 {
 858         long err;
 859         int i;
 860         struct v4l2_queryctrl   qctrl2;
 861         struct v4l2_audio       aud2;
 862         struct v4l2_tuner       tun2;
 863         memset(&aud2, 0, sizeof(aud2));
 864
 865         err = drv(file, VIDIOC_G_AUDIO, &aud2);
 866         if (err < 0) {
 867                 dprintk("VIDIOCGAUDIO / VIDIOC_G_AUDIO: %ld\n", err);
 868                 goto done;
 869         }
 870         memcpy(aud->name, aud2.name,
 871                min(sizeof(aud->name), sizeof(aud2.name)));
 872         aud->name[sizeof(aud->name) - 1] = 0;
 873         aud->audio = aud2.index;
 874         aud->flags = 0;
 875         i = get_v4l_control(file, V4L2_CID_AUDIO_VOLUME, drv);
 876         if (i >= 0) {
 877                 aud->volume = i;
 878                 aud->flags |= VIDEO_AUDIO_VOLUME;
 879         }
 880         i = get_v4l_control(file, V4L2_CID_AUDIO_BASS, drv);
 881         if (i >= 0) {
 882                 aud->bass = i;
 883                 aud->flags |= VIDEO_AUDIO_BASS;
 884         }
 885         i = get_v4l_control(file, V4L2_CID_AUDIO_TREBLE, drv);
 886         if (i >= 0) {
 887                 aud->treble = i;
 888                 aud->flags |= VIDEO_AUDIO_TREBLE;
 889         }
 890         i = get_v4l_control(file, V4L2_CID_AUDIO_BALANCE, drv);
 891         if (i >= 0) {
 892                 aud->balance = i;
 893                 aud->flags |= VIDEO_AUDIO_BALANCE;
 894         }
 895         i = get_v4l_control(file, V4L2_CID_AUDIO_MUTE, drv);
 896         if (i >= 0) {
 897                 if (i)
 898                         aud->flags |= VIDEO_AUDIO_MUTE;
 899                 aud->flags |= VIDEO_AUDIO_MUTABLE;
 900         }
 901         aud->step = 1;
 902         qctrl2.id = V4L2_CID_AUDIO_VOLUME;
 903         if (drv(file, VIDIOC_QUERYCTRL, &qctrl2) == 0 &&
 904             !(qctrl2.flags & V4L2_CTRL_FLAG_DISABLED))
 905                 aud->step = qctrl2.step;
 906         aud->mode = 0;
 907
 908         memset(&tun2, 0, sizeof(tun2));
 909         err = drv(file, VIDIOC_G_TUNER, &tun2);
 910         if (err < 0) {
 911                 dprintk("VIDIOCGAUDIO / VIDIOC_G_TUNER: %ld\n", err);
 912                 err = 0;
 913                 goto done;
 914         }
 915
 916         if (tun2.rxsubchans & V4L2_TUNER_SUB_LANG2)
 917                 aud->mode = VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
 918         else if (tun2.rxsubchans & V4L2_TUNER_SUB_STEREO)
 919                 aud->mode = VIDEO_SOUND_STEREO;
 920         else if (tun2.rxsubchans & V4L2_TUNER_SUB_MONO)
 921                 aud->mode = VIDEO_SOUND_MONO;
 922 done:
 923         return err;
 924 }
 925
 926 static noinline long v4l1_compat_set_audio(
 927                                         struct video_audio *aud,
 928                                         struct file *file,
 929                                         v4l2_kioctl drv)
 930 {
 931         long err;
 932         struct v4l2_audio       aud2;
 933         struct v4l2_tuner       tun2;
 934
 935         memset(&aud2, 0, sizeof(aud2));
 936         memset(&tun2, 0, sizeof(tun2));
 937
 938         aud2.index = aud->audio;
 939         err = drv(file, VIDIOC_S_AUDIO, &aud2);
 940         if (err < 0) {
 941                 dprintk("VIDIOCSAUDIO / VIDIOC_S_AUDIO: %ld\n", err);
 942                 goto done;
 943         }
 944
 945         set_v4l_control(file, V4L2_CID_AUDIO_VOLUME,
 946                         aud->volume, drv);
 947         set_v4l_control(file, V4L2_CID_AUDIO_BASS,
 948                         aud->bass, drv);
 949         set_v4l_control(file, V4L2_CID_AUDIO_TREBLE,
 950                         aud->treble, drv);
 951         set_v4l_control(file, V4L2_CID_AUDIO_BALANCE,
 952                         aud->balance, drv);
 953         set_v4l_control(file, V4L2_CID_AUDIO_MUTE,
 954                         !!(aud->flags & VIDEO_AUDIO_MUTE), drv);
 955
 956         err = drv(file, VIDIOC_G_TUNER, &tun2);
 957         if (err < 0)
 958                 dprintk("VIDIOCSAUDIO / VIDIOC_G_TUNER: %ld\n", err);
 959         if (err == 0) {
 960                 switch (aud->mode) {
 961                 default:
 962                 case VIDEO_SOUND_MONO:
 963                 case VIDEO_SOUND_LANG1:
 964                         tun2.audmode = V4L2_TUNER_MODE_MONO;
 965                         break;
 966                 case VIDEO_SOUND_STEREO:
 967                         tun2.audmode = V4L2_TUNER_MODE_STEREO;
 968                         break;
 969                 case VIDEO_SOUND_LANG2:
 970                         tun2.audmode = V4L2_TUNER_MODE_LANG2;
 971                         break;
 972                 }
 973                 err = drv(file, VIDIOC_S_TUNER, &tun2);
 974                 if (err < 0)
 975                         dprintk("VIDIOCSAUDIO / VIDIOC_S_TUNER: %ld\n", err);
 976         }
 977         err = 0;
 978 done:
 979         return err;
 980 }
 981
 982 static noinline long v4l1_compat_capture_frame(
 983                                         struct video_mmap *mm,
 984                                         struct file *file,
 985                                         v4l2_kioctl drv)
 986 {
 987         long err;
 988         enum v4l2_buf_type      captype = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 989         struct v4l2_buffer      buf;
 990         struct v4l2_format      *fmt;
 991
 992         fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
 993         if (!fmt) {
 994                 err = -ENOMEM;
 995                 return err;
 996         }
 997         memset(&buf, 0, sizeof(buf));
 998
 999         fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1000         err = drv(file, VIDIOC_G_FMT, fmt);
1001         if (err < 0) {
1002                 dprintk("VIDIOCMCAPTURE / VIDIOC_G_FMT: %ld\n", err);
1003                 goto done;
1004         }
1005         if (mm->width   != fmt->fmt.pix.width  ||
1006             mm->height  != fmt->fmt.pix.height ||
1007             palette_to_pixelformat(mm->format) !=
1008             fmt->fmt.pix.pixelformat) {
1009                 /* New capture format...  */
1010                 fmt->fmt.pix.width = mm->width;
1011                 fmt->fmt.pix.height = mm->height;
1012                 fmt->fmt.pix.pixelformat =
1013                         palette_to_pixelformat(mm->format);
1014                 fmt->fmt.pix.field = V4L2_FIELD_ANY;
1015                 fmt->fmt.pix.bytesperline = 0;
1016                 err = drv(file, VIDIOC_S_FMT, fmt);
1017                 if (err < 0) {
1018                         dprintk("VIDIOCMCAPTURE / VIDIOC_S_FMT: %ld\n", err);
1019                         goto done;
1020                 }
1021         }
1022         buf.index = mm->frame;
1023         buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1024         err = drv(file, VIDIOC_QUERYBUF, &buf);
1025         if (err < 0) {
1026                 dprintk("VIDIOCMCAPTURE / VIDIOC_QUERYBUF: %ld\n", err);
1027                 goto done;
1028         }
1029         err = drv(file, VIDIOC_QBUF, &buf);
1030         if (err < 0) {
1031                 dprintk("VIDIOCMCAPTURE / VIDIOC_QBUF: %ld\n", err);
1032                 goto done;
1033         }
1034         err = drv(file, VIDIOC_STREAMON, &captype);
1035         if (err < 0)
1036                 dprintk("VIDIOCMCAPTURE / VIDIOC_STREAMON: %ld\n", err);
1037 done:
1038         kfree(fmt);
1039         return err;
1040 }
1041
1042 static noinline long v4l1_compat_sync(
1043                                 int *i,
1044                                 struct file *file,
1045                                 v4l2_kioctl drv)
1046 {
1047         long err;
1048         enum v4l2_buf_type captype = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1049         struct v4l2_buffer buf;
1050         struct poll_wqueues *pwq;
1051
1052         memset(&buf, 0, sizeof(buf));
1053         buf.index = *i;
1054         buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1055         err = drv(file, VIDIOC_QUERYBUF, &buf);
1056         if (err < 0) {
1057                 /*  No such buffer */
1058                 dprintk("VIDIOCSYNC / VIDIOC_QUERYBUF: %ld\n", err);
1059                 goto done;
1060         }
1061         if (!(buf.flags & V4L2_BUF_FLAG_MAPPED)) {
1062                 /* Buffer is not mapped  */
1063                 err = -EINVAL;
1064                 goto done;
1065         }
1066
1067         /* make sure capture actually runs so we don't block forever */
1068         err = drv(file, VIDIOC_STREAMON, &captype);
1069         if (err < 0) {
1070                 dprintk("VIDIOCSYNC / VIDIOC_STREAMON: %ld\n", err);
1071                 goto done;
1072         }
1073
1074         pwq = kmalloc(sizeof(*pwq), GFP_KERNEL);
1075         /*  Loop as long as the buffer is queued, but not done  */
1076         while ((buf.flags & (V4L2_BUF_FLAG_QUEUED | V4L2_BUF_FLAG_DONE))
1077                                                 == V4L2_BUF_FLAG_QUEUED) {
1078                 err = poll_one(file, pwq);
1079                 if (err < 0 ||  /* error or sleep was interrupted  */
1080                     err == 0)   /* timeout? Shouldn't occur.  */
1081                         break;
1082                 err = drv(file, VIDIOC_QUERYBUF, &buf);
1083                 if (err < 0)
1084                         dprintk("VIDIOCSYNC / VIDIOC_QUERYBUF: %ld\n", err);
1085         }
1086         kfree(pwq);
1087         if (!(buf.flags & V4L2_BUF_FLAG_DONE)) /* not done */
1088                 goto done;
1089         do {
1090                 err = drv(file, VIDIOC_DQBUF, &buf);
1091                 if (err < 0)
1092                         dprintk("VIDIOCSYNC / VIDIOC_DQBUF: %ld\n", err);
1093         } while (err == 0 && buf.index != *i);
1094 done:
1095         return err;
1096 }
1097
1098 static noinline long v4l1_compat_get_vbi_format(
1099                                 struct vbi_format *fmt,
1100                                 struct file *file,
1101                                 v4l2_kioctl drv)
1102 {
1103         long err;
1104         struct v4l2_format *fmt2;
1105
1106         fmt2 = kzalloc(sizeof(*fmt2), GFP_KERNEL);
1107         if (!fmt2) {
1108                 err = -ENOMEM;
1109                 return err;
1110         }
1111         fmt2->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1112
1113         err = drv(file, VIDIOC_G_FMT, fmt2);
1114         if (err < 0) {
1115                 dprintk("VIDIOCGVBIFMT / VIDIOC_G_FMT: %ld\n", err);
1116                 goto done;
1117         }
1118         if (fmt2->fmt.vbi.sample_format != V4L2_PIX_FMT_GREY) {
1119                 err = -EINVAL;
1120                 goto done;
1121         }
1122         memset(fmt, 0, sizeof(*fmt));
1123         fmt->samples_per_line = fmt2->fmt.vbi.samples_per_line;
1124         fmt->sampling_rate    = fmt2->fmt.vbi.sampling_rate;
1125         fmt->sample_format    = VIDEO_PALETTE_RAW;
1126         fmt->start[0]         = fmt2->fmt.vbi.start[0];
1127         fmt->count[0]         = fmt2->fmt.vbi.count[0];
1128         fmt->start[1]         = fmt2->fmt.vbi.start[1];
1129         fmt->count[1]         = fmt2->fmt.vbi.count[1];
1130         fmt->flags            = fmt2->fmt.vbi.flags & 0x03;
1131 done:
1132         kfree(fmt2);
1133         return err;
1134 }
1135
1136 static noinline long v4l1_compat_set_vbi_format(
1137                                 struct vbi_format *fmt,
1138                                 struct file *file,
1139                                 v4l2_kioctl drv)
1140 {
1141         long err;
1142         struct v4l2_format      *fmt2 = NULL;
1143
1144         if (VIDEO_PALETTE_RAW != fmt->sample_format) {
1145                 err = -EINVAL;
1146                 return err;
1147         }
1148
1149         fmt2 = kzalloc(sizeof(*fmt2), GFP_KERNEL);
1150         if (!fmt2) {
1151                 err = -ENOMEM;
1152                 return err;
1153         }
1154         fmt2->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1155         fmt2->fmt.vbi.samples_per_line = fmt->samples_per_line;
1156         fmt2->fmt.vbi.sampling_rate    = fmt->sampling_rate;
1157         fmt2->fmt.vbi.sample_format    = V4L2_PIX_FMT_GREY;
1158         fmt2->fmt.vbi.start[0]         = fmt->start[0];
1159         fmt2->fmt.vbi.count[0]         = fmt->count[0];
1160         fmt2->fmt.vbi.start[1]         = fmt->start[1];
1161         fmt2->fmt.vbi.count[1]         = fmt->count[1];
1162         fmt2->fmt.vbi.flags            = fmt->flags;
1163         err = drv(file, VIDIOC_TRY_FMT, fmt2);
1164         if (err < 0) {
1165                 dprintk("VIDIOCSVBIFMT / VIDIOC_TRY_FMT: %ld\n", err);
1166                 goto done;
1167         }
1168
1169         if (fmt2->fmt.vbi.samples_per_line != fmt->samples_per_line ||
1170             fmt2->fmt.vbi.sampling_rate    != fmt->sampling_rate    ||
1171             fmt2->fmt.vbi.sample_format    != V4L2_PIX_FMT_GREY     ||
1172             fmt2->fmt.vbi.start[0]         != fmt->start[0]         ||
1173             fmt2->fmt.vbi.count[0]         != fmt->count[0]         ||
1174             fmt2->fmt.vbi.start[1]         != fmt->start[1]         ||
1175             fmt2->fmt.vbi.count[1]         != fmt->count[1]         ||
1176             fmt2->fmt.vbi.flags            != fmt->flags) {
1177                 err = -EINVAL;
1178                 goto done;
1179         }
1180         err = drv(file, VIDIOC_S_FMT, fmt2);
1181         if (err < 0)
1182                 dprintk("VIDIOCSVBIFMT / VIDIOC_S_FMT: %ld\n", err);
1183 done:
1184         kfree(fmt2);
1185         return err;
1186 }
1187
1188 /*
1189  *      This function is exported.
1190  */
1191 long
1192 v4l_compat_translate_ioctl(struct file          *file,
1193                            int                  cmd,
1194                            void                 *arg,
1195                            v4l2_kioctl          drv)
1196 {
1197         long err;
1198
1199         switch (cmd) {
1200         case VIDIOCGCAP:        /* capability */
1201                 err = v4l1_compat_get_capabilities(arg, file, drv);
1202                 break;
1203         case VIDIOCGFBUF: /*  get frame buffer  */
1204                 err = v4l1_compat_get_frame_buffer(arg, file, drv);
1205                 break;
1206         case VIDIOCSFBUF: /*  set frame buffer  */
1207                 err = v4l1_compat_set_frame_buffer(arg, file, drv);
1208                 break;
1209         case VIDIOCGWIN: /*  get window or capture dimensions  */
1210                 err = v4l1_compat_get_win_cap_dimensions(arg, file, drv);
1211                 break;
1212         case VIDIOCSWIN: /*  set window and/or capture dimensions  */
1213                 err = v4l1_compat_set_win_cap_dimensions(arg, file, drv);
1214                 break;
1215         case VIDIOCCAPTURE: /*  turn on/off preview  */
1216                 err = v4l1_compat_turn_preview_on_off(arg, file, drv);
1217                 break;
1218         case VIDIOCGCHAN: /*  get input information  */
1219                 err = v4l1_compat_get_input_info(arg, file, drv);
1220                 break;
1221         case VIDIOCSCHAN: /*  set input  */
1222                 err = v4l1_compat_set_input(arg, file, drv);
1223                 break;
1224         case VIDIOCGPICT: /*  get tone controls & partial capture format  */
1225                 err = v4l1_compat_get_picture(arg, file, drv);
1226                 break;
1227         case VIDIOCSPICT: /*  set tone controls & partial capture format  */
1228                 err = v4l1_compat_set_picture(arg, file, drv);
1229                 break;
1230         case VIDIOCGTUNER: /*  get tuner information  */
1231                 err = v4l1_compat_get_tuner(arg, file, drv);
1232                 break;
1233         case VIDIOCSTUNER: /*  select a tuner input  */
1234                 err = v4l1_compat_select_tuner(arg, file, drv);
1235                 break;
1236         case VIDIOCGFREQ: /*  get frequency  */
1237                 err = v4l1_compat_get_frequency(arg, file, drv);
1238                 break;
1239         case VIDIOCSFREQ: /*  set frequency  */
1240                 err = v4l1_compat_set_frequency(arg, file, drv);
1241                 break;
1242         case VIDIOCGAUDIO: /*  get audio properties/controls  */
1243                 err = v4l1_compat_get_audio(arg, file, drv);
1244                 break;
1245         case VIDIOCSAUDIO: /*  set audio controls  */
1246                 err = v4l1_compat_set_audio(arg, file, drv);
1247                 break;
1248         case VIDIOCMCAPTURE: /*  capture a frame  */
1249                 err = v4l1_compat_capture_frame(arg, file, drv);
1250                 break;
1251         case VIDIOCSYNC: /*  wait for a frame  */
1252                 err = v4l1_compat_sync(arg, file, drv);
1253                 break;
1254         case VIDIOCGVBIFMT: /* query VBI data capture format */
1255                 err = v4l1_compat_get_vbi_format(arg, file, drv);
1256                 break;
1257         case VIDIOCSVBIFMT:
1258                 err = v4l1_compat_set_vbi_format(arg, file, drv);
1259                 break;
1260         default:
1261                 err = -ENOIOCTLCMD;
1262                 break;
1263         }
1264
1265         return err;
1266 }
1267 EXPORT_SYMBOL(v4l_compat_translate_ioctl);
1268
1269 /*
1270  * Local variables:
1271  * c-basic-offset: 8
1272  * End:
1273  */