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 DIV_ROUND_CLOSEST((ctrl2.value-qctrl2.minimum) * 65535,
  80                                          qctrl2.maximum - qctrl2.minimum);
  81         }
  82         return 0;
  83 }
  84
  85 static int
  86 set_v4l_control(struct file             *file,
  87                 int                     cid,
  88                 int                     value,
  89                 v4l2_kioctl             drv)
  90 {
  91         struct v4l2_queryctrl   qctrl2;
  92         struct v4l2_control     ctrl2;
  93         int                     err;
  94
  95         qctrl2.id = cid;
  96         err = drv(file, VIDIOC_QUERYCTRL, &qctrl2);
  97         if (err < 0)
  98                 dprintk("VIDIOC_QUERYCTRL: %d\n", err);
  99         if (err == 0 &&
 100             !(qctrl2.flags & V4L2_CTRL_FLAG_DISABLED) &&
 101             !(qctrl2.flags & V4L2_CTRL_FLAG_GRABBED)) {
 102                 if (value < 0)
 103                         value = 0;
 104                 if (value > 65535)
 105                         value = 65535;
 106                 if (value && qctrl2.type == V4L2_CTRL_TYPE_BOOLEAN)
 107                         value = 65535;
 108                 ctrl2.id = qctrl2.id;
 109                 ctrl2.value =
 110                         (value * (qctrl2.maximum - qctrl2.minimum)
 111                          + 32767)
 112                         / 65535;
 113                 ctrl2.value += qctrl2.minimum;
 114                 err = drv(file, VIDIOC_S_CTRL, &ctrl2);
 115                 if (err < 0)
 116                         dprintk("VIDIOC_S_CTRL: %d\n", err);
 117         }
 118         return 0;
 119 }
 120
 121 /* ----------------------------------------------------------------- */
 122
 123 static const unsigned int palette2pixelformat[] = {
 124         [VIDEO_PALETTE_GREY]    = V4L2_PIX_FMT_GREY,
 125         [VIDEO_PALETTE_RGB555]  = V4L2_PIX_FMT_RGB555,
 126         [VIDEO_PALETTE_RGB565]  = V4L2_PIX_FMT_RGB565,
 127         [VIDEO_PALETTE_RGB24]   = V4L2_PIX_FMT_BGR24,
 128         [VIDEO_PALETTE_RGB32]   = V4L2_PIX_FMT_BGR32,
 129         /* yuv packed pixel */
 130         [VIDEO_PALETTE_YUYV]    = V4L2_PIX_FMT_YUYV,
 131         [VIDEO_PALETTE_YUV422]  = V4L2_PIX_FMT_YUYV,
 132         [VIDEO_PALETTE_UYVY]    = V4L2_PIX_FMT_UYVY,
 133         /* yuv planar */
 134         [VIDEO_PALETTE_YUV410P] = V4L2_PIX_FMT_YUV410,
 135         [VIDEO_PALETTE_YUV420]  = V4L2_PIX_FMT_YUV420,
 136         [VIDEO_PALETTE_YUV420P] = V4L2_PIX_FMT_YUV420,
 137         [VIDEO_PALETTE_YUV411P] = V4L2_PIX_FMT_YUV411P,
 138         [VIDEO_PALETTE_YUV422P] = V4L2_PIX_FMT_YUV422P,
 139 };
 140
 141 static unsigned int __pure
 142 palette_to_pixelformat(unsigned int palette)
 143 {
 144         if (palette < ARRAY_SIZE(palette2pixelformat))
 145                 return palette2pixelformat[palette];
 146         else
 147                 return 0;
 148 }
 149
 150 static unsigned int __attribute_const__
 151 pixelformat_to_palette(unsigned int pixelformat)
 152 {
 153         int     palette = 0;
 154         switch (pixelformat) {
 155         case V4L2_PIX_FMT_GREY:
 156                 palette = VIDEO_PALETTE_GREY;
 157                 break;
 158         case V4L2_PIX_FMT_RGB555:
 159                 palette = VIDEO_PALETTE_RGB555;
 160                 break;
 161         case V4L2_PIX_FMT_RGB565:
 162                 palette = VIDEO_PALETTE_RGB565;
 163                 break;
 164         case V4L2_PIX_FMT_BGR24:
 165                 palette = VIDEO_PALETTE_RGB24;
 166                 break;
 167         case V4L2_PIX_FMT_BGR32:
 168                 palette = VIDEO_PALETTE_RGB32;
 169                 break;
 170         /* yuv packed pixel */
 171         case V4L2_PIX_FMT_YUYV:
 172                 palette = VIDEO_PALETTE_YUYV;
 173                 break;
 174         case V4L2_PIX_FMT_UYVY:
 175                 palette = VIDEO_PALETTE_UYVY;
 176                 break;
 177         /* yuv planar */
 178         case V4L2_PIX_FMT_YUV410:
 179                 palette = VIDEO_PALETTE_YUV420;
 180                 break;
 181         case V4L2_PIX_FMT_YUV420:
 182                 palette = VIDEO_PALETTE_YUV420;
 183                 break;
 184         case V4L2_PIX_FMT_YUV411P:
 185                 palette = VIDEO_PALETTE_YUV411P;
 186                 break;
 187         case V4L2_PIX_FMT_YUV422P:
 188                 palette = VIDEO_PALETTE_YUV422P;
 189                 break;
 190         }
 191         return palette;
 192 }
 193
 194 /* ----------------------------------------------------------------- */
 195
 196 static int poll_one(struct file *file, struct poll_wqueues *pwq)
 197 {
 198         int retval = 1;
 199         poll_table *table;
 200
 201         poll_initwait(pwq);
 202         table = &pwq->pt;
 203         for (;;) {
 204                 int mask;
 205                 mask = file->f_op->poll(file, table);
 206                 if (mask & POLLIN)
 207                         break;
 208                 table = NULL;
 209                 if (signal_pending(current)) {
 210                         retval = -ERESTARTSYS;
 211                         break;
 212                 }
 213                 poll_schedule(pwq, TASK_INTERRUPTIBLE);
 214         }
 215         poll_freewait(pwq);
 216         return retval;
 217 }
 218
 219 static int count_inputs(
 220                         struct file *file,
 221                         v4l2_kioctl drv)
 222 {
 223         struct v4l2_input input2;
 224         int i;
 225
 226         for (i = 0;; i++) {
 227                 memset(&input2, 0, sizeof(input2));
 228                 input2.index = i;
 229                 if (0 != drv(file, VIDIOC_ENUMINPUT, &input2))
 230                         break;
 231         }
 232         return i;
 233 }
 234
 235 static int check_size(
 236                 struct file *file,
 237                 v4l2_kioctl drv,
 238                 int *maxw,
 239                 int *maxh)
 240 {
 241         struct v4l2_fmtdesc desc2;
 242         struct v4l2_format  fmt2;
 243
 244         memset(&desc2, 0, sizeof(desc2));
 245         memset(&fmt2, 0, sizeof(fmt2));
 246
 247         desc2.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 248         if (0 != drv(file, VIDIOC_ENUM_FMT, &desc2))
 249                 goto done;
 250
 251         fmt2.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 252         fmt2.fmt.pix.width       = 10000;
 253         fmt2.fmt.pix.height      = 10000;
 254         fmt2.fmt.pix.pixelformat = desc2.pixelformat;
 255         if (0 != drv(file, VIDIOC_TRY_FMT, &fmt2))
 256                 goto done;
 257
 258         *maxw = fmt2.fmt.pix.width;
 259         *maxh = fmt2.fmt.pix.height;
 260
 261 done:
 262         return 0;
 263 }
 264
 265 /* ----------------------------------------------------------------- */
 266
 267 static noinline long v4l1_compat_get_capabilities(
 268                                         struct video_capability *cap,
 269                                         struct file *file,
 270                                         v4l2_kioctl drv)
 271 {
 272         long err;
 273         struct v4l2_framebuffer fbuf;
 274         struct v4l2_capability *cap2;
 275
 276         cap2 = kzalloc(sizeof(*cap2), GFP_KERNEL);
 277         if (!cap2) {
 278                 err = -ENOMEM;
 279                 return err;
 280         }
 281         memset(cap, 0, sizeof(*cap));
 282         memset(&fbuf, 0, sizeof(fbuf));
 283
 284         err = drv(file, VIDIOC_QUERYCAP, cap2);
 285         if (err < 0) {
 286                 dprintk("VIDIOCGCAP / VIDIOC_QUERYCAP: %ld\n", err);
 287                 goto done;
 288         }
 289         if (cap2->capabilities & V4L2_CAP_VIDEO_OVERLAY) {
 290                 err = drv(file, VIDIOC_G_FBUF, &fbuf);
 291                 if (err < 0) {
 292                         dprintk("VIDIOCGCAP / VIDIOC_G_FBUF: %ld\n", err);
 293                         memset(&fbuf, 0, sizeof(fbuf));
 294                 }
 295                 err = 0;
 296         }
 297
 298         memcpy(cap->name, cap2->card,
 299                min(sizeof(cap->name), sizeof(cap2->card)));
 300         cap->name[sizeof(cap->name) - 1] = 0;
 301         if (cap2->capabilities & V4L2_CAP_VIDEO_CAPTURE)
 302                 cap->type |= VID_TYPE_CAPTURE;
 303         if (cap2->capabilities & V4L2_CAP_TUNER)
 304                 cap->type |= VID_TYPE_TUNER;
 305         if (cap2->capabilities & V4L2_CAP_VBI_CAPTURE)
 306                 cap->type |= VID_TYPE_TELETEXT;
 307         if (cap2->capabilities & V4L2_CAP_VIDEO_OVERLAY)
 308                 cap->type |= VID_TYPE_OVERLAY;
 309         if (fbuf.capability & V4L2_FBUF_CAP_LIST_CLIPPING)
 310                 cap->type |= VID_TYPE_CLIPPING;
 311
 312         cap->channels  = count_inputs(file, drv);
 313         check_size(file, drv,
 314                    &cap->maxwidth, &cap->maxheight);
 315         cap->audios    =  0; /* FIXME */
 316         cap->minwidth  = 48; /* FIXME */
 317         cap->minheight = 32; /* FIXME */
 318
 319 done:
 320         kfree(cap2);
 321         return err;
 322 }
 323
 324 static noinline long v4l1_compat_get_frame_buffer(
 325                                         struct video_buffer *buffer,
 326                                         struct file *file,
 327                                         v4l2_kioctl drv)
 328 {
 329         long err;
 330         struct v4l2_framebuffer fbuf;
 331
 332         memset(buffer, 0, sizeof(*buffer));
 333         memset(&fbuf, 0, sizeof(fbuf));
 334
 335         err = drv(file, VIDIOC_G_FBUF, &fbuf);
 336         if (err < 0) {
 337                 dprintk("VIDIOCGFBUF / VIDIOC_G_FBUF: %ld\n", err);
 338                 goto done;
 339         }
 340         buffer->base   = fbuf.base;
 341         buffer->height = fbuf.fmt.height;
 342         buffer->width  = fbuf.fmt.width;
 343
 344         switch (fbuf.fmt.pixelformat) {
 345         case V4L2_PIX_FMT_RGB332:
 346                 buffer->depth = 8;
 347                 break;
 348         case V4L2_PIX_FMT_RGB555:
 349                 buffer->depth = 15;
 350                 break;
 351         case V4L2_PIX_FMT_RGB565:
 352                 buffer->depth = 16;
 353                 break;
 354         case V4L2_PIX_FMT_BGR24:
 355                 buffer->depth = 24;
 356                 break;
 357         case V4L2_PIX_FMT_BGR32:
 358                 buffer->depth = 32;
 359                 break;
 360         default:
 361                 buffer->depth = 0;
 362         }
 363         if (fbuf.fmt.bytesperline) {
 364                 buffer->bytesperline = fbuf.fmt.bytesperline;
 365                 if (!buffer->depth && buffer->width)
 366                         buffer->depth   = ((fbuf.fmt.bytesperline<<3)
 367                                           + (buffer->width-1))
 368                                           / buffer->width;
 369         } else {
 370                 buffer->bytesperline =
 371                         (buffer->width * buffer->depth + 7) & 7;
 372                 buffer->bytesperline >>= 3;
 373         }
 374 done:
 375         return err;
 376 }
 377
 378 static noinline long v4l1_compat_set_frame_buffer(
 379                                         struct video_buffer *buffer,
 380                                         struct file *file,
 381                                         v4l2_kioctl drv)
 382 {
 383         long err;
 384         struct v4l2_framebuffer fbuf;
 385
 386         memset(&fbuf, 0, sizeof(fbuf));
 387         fbuf.base       = buffer->base;
 388         fbuf.fmt.height = buffer->height;
 389         fbuf.fmt.width  = buffer->width;
 390         switch (buffer->depth) {
 391         case 8:
 392                 fbuf.fmt.pixelformat = V4L2_PIX_FMT_RGB332;
 393                 break;
 394         case 15:
 395                 fbuf.fmt.pixelformat = V4L2_PIX_FMT_RGB555;
 396                 break;
 397         case 16:
 398                 fbuf.fmt.pixelformat = V4L2_PIX_FMT_RGB565;
 399                 break;
 400         case 24:
 401                 fbuf.fmt.pixelformat = V4L2_PIX_FMT_BGR24;
 402                 break;
 403         case 32:
 404                 fbuf.fmt.pixelformat = V4L2_PIX_FMT_BGR32;
 405                 break;
 406         }
 407         fbuf.fmt.bytesperline = buffer->bytesperline;
 408         err = drv(file, VIDIOC_S_FBUF, &fbuf);
 409         if (err < 0)
 410                 dprintk("VIDIOCSFBUF / VIDIOC_S_FBUF: %ld\n", err);
 411         return err;
 412 }
 413
 414 static noinline long v4l1_compat_get_win_cap_dimensions(
 415                                         struct video_window *win,
 416                                         struct file *file,
 417                                         v4l2_kioctl drv)
 418 {
 419         long err;
 420         struct v4l2_format *fmt;
 421
 422         fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
 423         if (!fmt) {
 424                 err = -ENOMEM;
 425                 return err;
 426         }
 427         memset(win, 0, sizeof(*win));
 428
 429         fmt->type = V4L2_BUF_TYPE_VIDEO_OVERLAY;
 430         err = drv(file, VIDIOC_G_FMT, fmt);
 431         if (err < 0)
 432                 dprintk("VIDIOCGWIN / VIDIOC_G_WIN: %ld\n", err);
 433         if (err == 0) {
 434                 win->x         = fmt->fmt.win.w.left;
 435                 win->y         = fmt->fmt.win.w.top;
 436                 win->width     = fmt->fmt.win.w.width;
 437                 win->height    = fmt->fmt.win.w.height;
 438                 win->chromakey = fmt->fmt.win.chromakey;
 439                 win->clips     = NULL;
 440                 win->clipcount = 0;
 441                 goto done;
 442         }
 443
 444         fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 445         err = drv(file, VIDIOC_G_FMT, fmt);
 446         if (err < 0) {
 447                 dprintk("VIDIOCGWIN / VIDIOC_G_FMT: %ld\n", err);
 448                 goto done;
 449         }
 450         win->x         = 0;
 451         win->y         = 0;
 452         win->width     = fmt->fmt.pix.width;
 453         win->height    = fmt->fmt.pix.height;
 454         win->chromakey = 0;
 455         win->clips     = NULL;
 456         win->clipcount = 0;
 457 done:
 458         kfree(fmt);
 459         return err;
 460 }
 461
 462 static noinline long v4l1_compat_set_win_cap_dimensions(
 463                                         struct video_window *win,
 464                                         struct file *file,
 465                                         v4l2_kioctl drv)
 466 {
 467         long err, err1, err2;
 468         struct v4l2_format *fmt;
 469
 470         fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
 471         if (!fmt) {
 472                 err = -ENOMEM;
 473                 return err;
 474         }
 475         fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 476         drv(file, VIDIOC_STREAMOFF, &fmt->type);
 477         err1 = drv(file, VIDIOC_G_FMT, fmt);
 478         if (err1 < 0)
 479                 dprintk("VIDIOCSWIN / VIDIOC_G_FMT: %ld\n", err1);
 480         if (err1 == 0) {
 481                 fmt->fmt.pix.width  = win->width;
 482                 fmt->fmt.pix.height = win->height;
 483                 fmt->fmt.pix.field  = V4L2_FIELD_ANY;
 484                 fmt->fmt.pix.bytesperline = 0;
 485                 err = drv(file, VIDIOC_S_FMT, fmt);
 486                 if (err < 0)
 487                         dprintk("VIDIOCSWIN / VIDIOC_S_FMT #1: %ld\n",
 488                                 err);
 489                 win->width  = fmt->fmt.pix.width;
 490                 win->height = fmt->fmt.pix.height;
 491         }
 492
 493         memset(fmt, 0, sizeof(*fmt));
 494         fmt->type = V4L2_BUF_TYPE_VIDEO_OVERLAY;
 495         fmt->fmt.win.w.left    = win->x;
 496         fmt->fmt.win.w.top     = win->y;
 497         fmt->fmt.win.w.width   = win->width;
 498         fmt->fmt.win.w.height  = win->height;
 499         fmt->fmt.win.chromakey = win->chromakey;
 500         fmt->fmt.win.clips     = (void __user *)win->clips;
 501         fmt->fmt.win.clipcount = win->clipcount;
 502         err2 = drv(file, VIDIOC_S_FMT, fmt);
 503         if (err2 < 0)
 504                 dprintk("VIDIOCSWIN / VIDIOC_S_FMT #2: %ld\n", err2);
 505
 506         if (err1 != 0 && err2 != 0)
 507                 err = err1;
 508         else
 509                 err = 0;
 510         kfree(fmt);
 511         return err;
 512 }
 513
 514 static noinline long v4l1_compat_turn_preview_on_off(
 515                                         int *on,
 516                                         struct file *file,
 517                                         v4l2_kioctl drv)
 518 {
 519         long err;
 520         enum v4l2_buf_type captype = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 521
 522         if (0 == *on) {
 523                 /* dirty hack time.  But v4l1 has no STREAMOFF
 524                  * equivalent in the API, and this one at
 525                  * least comes close ... */
 526                 drv(file, VIDIOC_STREAMOFF, &captype);
 527         }
 528         err = drv(file, VIDIOC_OVERLAY, on);
 529         if (err < 0)
 530                 dprintk("VIDIOCCAPTURE / VIDIOC_PREVIEW: %ld\n", err);
 531         return err;
 532 }
 533
 534 static noinline long v4l1_compat_get_input_info(
 535                                         struct video_channel *chan,
 536                                         struct file *file,
 537                                         v4l2_kioctl drv)
 538 {
 539         long err;
 540         struct v4l2_input       input2;
 541         v4l2_std_id             sid;
 542
 543         memset(&input2, 0, sizeof(input2));
 544         input2.index = chan->channel;
 545         err = drv(file, VIDIOC_ENUMINPUT, &input2);
 546         if (err < 0) {
 547                 dprintk("VIDIOCGCHAN / VIDIOC_ENUMINPUT: "
 548                         "channel=%d err=%ld\n", chan->channel, err);
 549                 goto done;
 550         }
 551         chan->channel = input2.index;
 552         memcpy(chan->name, input2.name,
 553                min(sizeof(chan->name), sizeof(input2.name)));
 554         chan->name[sizeof(chan->name) - 1] = 0;
 555         chan->tuners = (input2.type == V4L2_INPUT_TYPE_TUNER) ? 1 : 0;
 556         chan->flags = (chan->tuners) ? VIDEO_VC_TUNER : 0;
 557         switch (input2.type) {
 558         case V4L2_INPUT_TYPE_TUNER:
 559                 chan->type = VIDEO_TYPE_TV;
 560                 break;
 561         default:
 562         case V4L2_INPUT_TYPE_CAMERA:
 563                 chan->type = VIDEO_TYPE_CAMERA;
 564                 break;
 565         }
 566         chan->norm = 0;
 567         err = drv(file, VIDIOC_G_STD, &sid);
 568         if (err < 0)
 569                 dprintk("VIDIOCGCHAN / VIDIOC_G_STD: %ld\n", err);
 570         if (err == 0) {
 571                 if (sid & V4L2_STD_PAL)
 572                         chan->norm = VIDEO_MODE_PAL;
 573                 if (sid & V4L2_STD_NTSC)
 574                         chan->norm = VIDEO_MODE_NTSC;
 575                 if (sid & V4L2_STD_SECAM)
 576                         chan->norm = VIDEO_MODE_SECAM;
 577                 if (sid == V4L2_STD_ALL)
 578                         chan->norm = VIDEO_MODE_AUTO;
 579         }
 580 done:
 581         return err;
 582 }
 583
 584 static noinline long v4l1_compat_set_input(
 585                                         struct video_channel *chan,
 586                                         struct file *file,
 587                                         v4l2_kioctl drv)
 588 {
 589         long err;
 590         v4l2_std_id sid = 0;
 591
 592         err = drv(file, VIDIOC_S_INPUT, &chan->channel);
 593         if (err < 0)
 594                 dprintk("VIDIOCSCHAN / VIDIOC_S_INPUT: %ld\n", err);
 595         switch (chan->norm) {
 596         case VIDEO_MODE_PAL:
 597                 sid = V4L2_STD_PAL;
 598                 break;
 599         case VIDEO_MODE_NTSC:
 600                 sid = V4L2_STD_NTSC;
 601                 break;
 602         case VIDEO_MODE_SECAM:
 603                 sid = V4L2_STD_SECAM;
 604                 break;
 605         case VIDEO_MODE_AUTO:
 606                 sid = V4L2_STD_ALL;
 607                 break;
 608         }
 609         if (0 != sid) {
 610                 err = drv(file, VIDIOC_S_STD, &sid);
 611                 if (err < 0)
 612                         dprintk("VIDIOCSCHAN / VIDIOC_S_STD: %ld\n", err);
 613         }
 614         return err;
 615 }
 616
 617 static noinline long v4l1_compat_get_picture(
 618                                         struct video_picture *pict,
 619                                         struct file *file,
 620                                         v4l2_kioctl drv)
 621 {
 622         long err;
 623         struct v4l2_format *fmt;
 624
 625         fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
 626         if (!fmt) {
 627                 err = -ENOMEM;
 628                 return err;
 629         }
 630
 631         pict->brightness = get_v4l_control(file,
 632                                            V4L2_CID_BRIGHTNESS, drv);
 633         pict->hue = get_v4l_control(file,
 634                                     V4L2_CID_HUE, drv);
 635         pict->contrast = get_v4l_control(file,
 636                                          V4L2_CID_CONTRAST, drv);
 637         pict->colour = get_v4l_control(file,
 638                                        V4L2_CID_SATURATION, drv);
 639         pict->whiteness = get_v4l_control(file,
 640                                           V4L2_CID_WHITENESS, drv);
 641
 642         fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 643         err = drv(file, VIDIOC_G_FMT, fmt);
 644         if (err < 0) {
 645                 dprintk("VIDIOCGPICT / VIDIOC_G_FMT: %ld\n", err);
 646                 goto done;
 647         }
 648
 649         pict->depth   = ((fmt->fmt.pix.bytesperline << 3)
 650                          + (fmt->fmt.pix.width - 1))
 651                          / fmt->fmt.pix.width;
 652         pict->palette = pixelformat_to_palette(
 653                 fmt->fmt.pix.pixelformat);
 654 done:
 655         kfree(fmt);
 656         return err;
 657 }
 658
 659 static noinline long v4l1_compat_set_picture(
 660                                         struct video_picture *pict,
 661                                         struct file *file,
 662                                         v4l2_kioctl drv)
 663 {
 664         long err;
 665         struct v4l2_framebuffer fbuf;
 666         int mem_err = 0, ovl_err = 0;
 667         struct v4l2_format *fmt;
 668
 669         fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
 670         if (!fmt) {
 671                 err = -ENOMEM;
 672                 return err;
 673         }
 674         memset(&fbuf, 0, sizeof(fbuf));
 675
 676         set_v4l_control(file,
 677                         V4L2_CID_BRIGHTNESS, pict->brightness, drv);
 678         set_v4l_control(file,
 679                         V4L2_CID_HUE, pict->hue, drv);
 680         set_v4l_control(file,
 681                         V4L2_CID_CONTRAST, pict->contrast, drv);
 682         set_v4l_control(file,
 683                         V4L2_CID_SATURATION, pict->colour, drv);
 684         set_v4l_control(file,
 685                         V4L2_CID_WHITENESS, pict->whiteness, drv);
 686         /*
 687          * V4L1 uses this ioctl to set both memory capture and overlay
 688          * pixel format, while V4L2 has two different ioctls for this.
 689          * Some cards may not support one or the other, and may support
 690          * different pixel formats for memory vs overlay.
 691          */
 692
 693         fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 694         err = drv(file, VIDIOC_G_FMT, fmt);
 695         /* If VIDIOC_G_FMT failed, then the driver likely doesn't
 696            support memory capture.  Trying to set the memory capture
 697            parameters would be pointless.  */
 698         if (err < 0) {
 699                 dprintk("VIDIOCSPICT / VIDIOC_G_FMT: %ld\n", err);
 700                 mem_err = -1000;  /* didn't even try */
 701         } else if (fmt->fmt.pix.pixelformat !=
 702                  palette_to_pixelformat(pict->palette)) {
 703                 fmt->fmt.pix.pixelformat = palette_to_pixelformat(
 704                         pict->palette);
 705                 mem_err = drv(file, VIDIOC_S_FMT, fmt);
 706                 if (mem_err < 0)
 707                         dprintk("VIDIOCSPICT / VIDIOC_S_FMT: %d\n",
 708                                 mem_err);
 709         }
 710
 711         err = drv(file, VIDIOC_G_FBUF, &fbuf);
 712         /* If VIDIOC_G_FBUF failed, then the driver likely doesn't
 713            support overlay.  Trying to set the overlay parameters
 714            would be quite pointless.  */
 715         if (err < 0) {
 716                 dprintk("VIDIOCSPICT / VIDIOC_G_FBUF: %ld\n", err);
 717                 ovl_err = -1000;  /* didn't even try */
 718         } else if (fbuf.fmt.pixelformat !=
 719                  palette_to_pixelformat(pict->palette)) {
 720                 fbuf.fmt.pixelformat = palette_to_pixelformat(
 721                         pict->palette);
 722                 ovl_err = drv(file, VIDIOC_S_FBUF, &fbuf);
 723                 if (ovl_err < 0)
 724                         dprintk("VIDIOCSPICT / VIDIOC_S_FBUF: %d\n",
 725                                 ovl_err);
 726         }
 727         if (ovl_err < 0 && mem_err < 0) {
 728                 /* ioctl failed, couldn't set either parameter */
 729                 if (mem_err != -1000)
 730                         err = mem_err;
 731                 else if (ovl_err == -EPERM)
 732                         err = 0;
 733                 else
 734                         err = ovl_err;
 735         } else
 736                 err = 0;
 737         kfree(fmt);
 738         return err;
 739 }
 740
 741 static noinline long v4l1_compat_get_tuner(
 742                                         struct video_tuner *tun,
 743                                         struct file *file,
 744                                         v4l2_kioctl drv)
 745 {
 746         long err;
 747         int i;
 748         struct v4l2_tuner       tun2;
 749         struct v4l2_standard    std2;
 750         v4l2_std_id             sid;
 751
 752         memset(&tun2, 0, sizeof(tun2));
 753         err = drv(file, VIDIOC_G_TUNER, &tun2);
 754         if (err < 0) {
 755                 dprintk("VIDIOCGTUNER / VIDIOC_G_TUNER: %ld\n", err);
 756                 goto done;
 757         }
 758         memcpy(tun->name, tun2.name,
 759                min(sizeof(tun->name), sizeof(tun2.name)));
 760         tun->name[sizeof(tun->name) - 1] = 0;
 761         tun->rangelow = tun2.rangelow;
 762         tun->rangehigh = tun2.rangehigh;
 763         tun->flags = 0;
 764         tun->mode = VIDEO_MODE_AUTO;
 765
 766         for (i = 0; i < 64; i++) {
 767                 memset(&std2, 0, sizeof(std2));
 768                 std2.index = i;
 769                 if (0 != drv(file, VIDIOC_ENUMSTD, &std2))
 770                         break;
 771                 if (std2.id & V4L2_STD_PAL)
 772                         tun->flags |= VIDEO_TUNER_PAL;
 773                 if (std2.id & V4L2_STD_NTSC)
 774                         tun->flags |= VIDEO_TUNER_NTSC;
 775                 if (std2.id & V4L2_STD_SECAM)
 776                         tun->flags |= VIDEO_TUNER_SECAM;
 777         }
 778
 779         err = drv(file, VIDIOC_G_STD, &sid);
 780         if (err < 0)
 781                 dprintk("VIDIOCGTUNER / VIDIOC_G_STD: %ld\n", err);
 782         if (err == 0) {
 783                 if (sid & V4L2_STD_PAL)
 784                         tun->mode = VIDEO_MODE_PAL;
 785                 if (sid & V4L2_STD_NTSC)
 786                         tun->mode = VIDEO_MODE_NTSC;
 787                 if (sid & V4L2_STD_SECAM)
 788                         tun->mode = VIDEO_MODE_SECAM;
 789         }
 790
 791         if (tun2.capability & V4L2_TUNER_CAP_LOW)
 792                 tun->flags |= VIDEO_TUNER_LOW;
 793         if (tun2.rxsubchans & V4L2_TUNER_SUB_STEREO)
 794                 tun->flags |= VIDEO_TUNER_STEREO_ON;
 795         tun->signal = tun2.signal;
 796 done:
 797         return err;
 798 }
 799
 800 static noinline long v4l1_compat_select_tuner(
 801                                         struct video_tuner *tun,
 802                                         struct file *file,
 803                                         v4l2_kioctl drv)
 804 {
 805         long err;
 806         struct v4l2_tuner       t;/*84 bytes on x86_64*/
 807         memset(&t, 0, sizeof(t));
 808
 809         t.index = tun->tuner;
 810
 811         err = drv(file, VIDIOC_S_TUNER, &t);
 812         if (err < 0)
 813                 dprintk("VIDIOCSTUNER / VIDIOC_S_TUNER: %ld\n", err);
 814         return err;
 815 }
 816
 817 static noinline long v4l1_compat_get_frequency(
 818                                         unsigned long *freq,
 819                                         struct file *file,
 820                                         v4l2_kioctl drv)
 821 {
 822         long err;
 823         struct v4l2_frequency   freq2;
 824         memset(&freq2, 0, sizeof(freq2));
 825
 826         freq2.tuner = 0;
 827         err = drv(file, VIDIOC_G_FREQUENCY, &freq2);
 828         if (err < 0)
 829                 dprintk("VIDIOCGFREQ / VIDIOC_G_FREQUENCY: %ld\n", err);
 830         if (0 == err)
 831                 *freq = freq2.frequency;
 832         return err;
 833 }
 834
 835 static noinline long v4l1_compat_set_frequency(
 836                                         unsigned long *freq,
 837                                         struct file *file,
 838                                         v4l2_kioctl drv)
 839 {
 840         long err;
 841         struct v4l2_frequency   freq2;
 842         memset(&freq2, 0, sizeof(freq2));
 843
 844         drv(file, VIDIOC_G_FREQUENCY, &freq2);
 845         freq2.frequency = *freq;
 846         err = drv(file, VIDIOC_S_FREQUENCY, &freq2);
 847         if (err < 0)
 848                 dprintk("VIDIOCSFREQ / VIDIOC_S_FREQUENCY: %ld\n", err);
 849         return err;
 850 }
 851
 852 static noinline long v4l1_compat_get_audio(
 853                                         struct video_audio *aud,
 854                                         struct file *file,
 855                                         v4l2_kioctl drv)
 856 {
 857         long err;
 858         int i;
 859         struct v4l2_queryctrl   qctrl2;
 860         struct v4l2_audio       aud2;
 861         struct v4l2_tuner       tun2;
 862         memset(&aud2, 0, sizeof(aud2));
 863
 864         err = drv(file, VIDIOC_G_AUDIO, &aud2);
 865         if (err < 0) {
 866                 dprintk("VIDIOCGAUDIO / VIDIOC_G_AUDIO: %ld\n", err);
 867                 goto done;
 868         }
 869         memcpy(aud->name, aud2.name,
 870                min(sizeof(aud->name), sizeof(aud2.name)));
 871         aud->name[sizeof(aud->name) - 1] = 0;
 872         aud->audio = aud2.index;
 873         aud->flags = 0;
 874         i = get_v4l_control(file, V4L2_CID_AUDIO_VOLUME, drv);
 875         if (i >= 0) {
 876                 aud->volume = i;
 877                 aud->flags |= VIDEO_AUDIO_VOLUME;
 878         }
 879         i = get_v4l_control(file, V4L2_CID_AUDIO_BASS, drv);
 880         if (i >= 0) {
 881                 aud->bass = i;
 882                 aud->flags |= VIDEO_AUDIO_BASS;
 883         }
 884         i = get_v4l_control(file, V4L2_CID_AUDIO_TREBLE, drv);
 885         if (i >= 0) {
 886                 aud->treble = i;
 887                 aud->flags |= VIDEO_AUDIO_TREBLE;
 888         }
 889         i = get_v4l_control(file, V4L2_CID_AUDIO_BALANCE, drv);
 890         if (i >= 0) {
 891                 aud->balance = i;
 892                 aud->flags |= VIDEO_AUDIO_BALANCE;
 893         }
 894         i = get_v4l_control(file, V4L2_CID_AUDIO_MUTE, drv);
 895         if (i >= 0) {
 896                 if (i)
 897                         aud->flags |= VIDEO_AUDIO_MUTE;
 898                 aud->flags |= VIDEO_AUDIO_MUTABLE;
 899         }
 900         aud->step = 1;
 901         qctrl2.id = V4L2_CID_AUDIO_VOLUME;
 902         if (drv(file, VIDIOC_QUERYCTRL, &qctrl2) == 0 &&
 903             !(qctrl2.flags & V4L2_CTRL_FLAG_DISABLED))
 904                 aud->step = qctrl2.step;
 905         aud->mode = 0;
 906
 907         memset(&tun2, 0, sizeof(tun2));
 908         err = drv(file, VIDIOC_G_TUNER, &tun2);
 909         if (err < 0) {
 910                 dprintk("VIDIOCGAUDIO / VIDIOC_G_TUNER: %ld\n", err);
 911                 err = 0;
 912                 goto done;
 913         }
 914
 915         if (tun2.rxsubchans & V4L2_TUNER_SUB_LANG2)
 916                 aud->mode = VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
 917         else if (tun2.rxsubchans & V4L2_TUNER_SUB_STEREO)
 918                 aud->mode = VIDEO_SOUND_STEREO;
 919         else if (tun2.rxsubchans & V4L2_TUNER_SUB_MONO)
 920                 aud->mode = VIDEO_SOUND_MONO;
 921 done:
 922         return err;
 923 }
 924
 925 static noinline long v4l1_compat_set_audio(
 926                                         struct video_audio *aud,
 927                                         struct file *file,
 928                                         v4l2_kioctl drv)
 929 {
 930         long err;
 931         struct v4l2_audio       aud2;
 932         struct v4l2_tuner       tun2;
 933
 934         memset(&aud2, 0, sizeof(aud2));
 935         memset(&tun2, 0, sizeof(tun2));
 936
 937         aud2.index = aud->audio;
 938         err = drv(file, VIDIOC_S_AUDIO, &aud2);
 939         if (err < 0) {
 940                 dprintk("VIDIOCSAUDIO / VIDIOC_S_AUDIO: %ld\n", err);
 941                 goto done;
 942         }
 943
 944         set_v4l_control(file, V4L2_CID_AUDIO_VOLUME,
 945                         aud->volume, drv);
 946         set_v4l_control(file, V4L2_CID_AUDIO_BASS,
 947                         aud->bass, drv);
 948         set_v4l_control(file, V4L2_CID_AUDIO_TREBLE,
 949                         aud->treble, drv);
 950         set_v4l_control(file, V4L2_CID_AUDIO_BALANCE,
 951                         aud->balance, drv);
 952         set_v4l_control(file, V4L2_CID_AUDIO_MUTE,
 953                         !!(aud->flags & VIDEO_AUDIO_MUTE), drv);
 954
 955         err = drv(file, VIDIOC_G_TUNER, &tun2);
 956         if (err < 0)
 957                 dprintk("VIDIOCSAUDIO / VIDIOC_G_TUNER: %ld\n", err);
 958         if (err == 0) {
 959                 switch (aud->mode) {
 960                 default:
 961                 case VIDEO_SOUND_MONO:
 962                 case VIDEO_SOUND_LANG1:
 963                         tun2.audmode = V4L2_TUNER_MODE_MONO;
 964                         break;
 965                 case VIDEO_SOUND_STEREO:
 966                         tun2.audmode = V4L2_TUNER_MODE_STEREO;
 967                         break;
 968                 case VIDEO_SOUND_LANG2:
 969                         tun2.audmode = V4L2_TUNER_MODE_LANG2;
 970                         break;
 971                 }
 972                 err = drv(file, VIDIOC_S_TUNER, &tun2);
 973                 if (err < 0)
 974                         dprintk("VIDIOCSAUDIO / VIDIOC_S_TUNER: %ld\n", err);
 975         }
 976         err = 0;
 977 done:
 978         return err;
 979 }
 980
 981 static noinline long v4l1_compat_capture_frame(
 982                                         struct video_mmap *mm,
 983                                         struct file *file,
 984                                         v4l2_kioctl drv)
 985 {
 986         long err;
 987         enum v4l2_buf_type      captype = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 988         struct v4l2_buffer      buf;
 989         struct v4l2_format      *fmt;
 990
 991         fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
 992         if (!fmt) {
 993                 err = -ENOMEM;
 994                 return err;
 995         }
 996         memset(&buf, 0, sizeof(buf));
 997
 998         fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 999         err = drv(file, VIDIOC_G_FMT, fmt);
1000         if (err < 0) {
1001                 dprintk("VIDIOCMCAPTURE / VIDIOC_G_FMT: %ld\n", err);
1002                 goto done;
1003         }
1004         if (mm->width   != fmt->fmt.pix.width  ||
1005             mm->height  != fmt->fmt.pix.height ||
1006             palette_to_pixelformat(mm->format) !=
1007             fmt->fmt.pix.pixelformat) {
1008                 /* New capture format...  */
1009                 fmt->fmt.pix.width = mm->width;
1010                 fmt->fmt.pix.height = mm->height;
1011                 fmt->fmt.pix.pixelformat =
1012                         palette_to_pixelformat(mm->format);
1013                 fmt->fmt.pix.field = V4L2_FIELD_ANY;
1014                 fmt->fmt.pix.bytesperline = 0;
1015                 err = drv(file, VIDIOC_S_FMT, fmt);
1016                 if (err < 0) {
1017                         dprintk("VIDIOCMCAPTURE / VIDIOC_S_FMT: %ld\n", err);
1018                         goto done;
1019                 }
1020         }
1021         buf.index = mm->frame;
1022         buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1023         err = drv(file, VIDIOC_QUERYBUF, &buf);
1024         if (err < 0) {
1025                 dprintk("VIDIOCMCAPTURE / VIDIOC_QUERYBUF: %ld\n", err);
1026                 goto done;
1027         }
1028         err = drv(file, VIDIOC_QBUF, &buf);
1029         if (err < 0) {
1030                 dprintk("VIDIOCMCAPTURE / VIDIOC_QBUF: %ld\n", err);
1031                 goto done;
1032         }
1033         err = drv(file, VIDIOC_STREAMON, &captype);
1034         if (err < 0)
1035                 dprintk("VIDIOCMCAPTURE / VIDIOC_STREAMON: %ld\n", err);
1036 done:
1037         kfree(fmt);
1038         return err;
1039 }
1040
1041 static noinline long v4l1_compat_sync(
1042                                 int *i,
1043                                 struct file *file,
1044                                 v4l2_kioctl drv)
1045 {
1046         long err;
1047         enum v4l2_buf_type captype = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1048         struct v4l2_buffer buf;
1049         struct poll_wqueues *pwq;
1050
1051         memset(&buf, 0, sizeof(buf));
1052         buf.index = *i;
1053         buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1054         err = drv(file, VIDIOC_QUERYBUF, &buf);
1055         if (err < 0) {
1056                 /*  No such buffer */
1057                 dprintk("VIDIOCSYNC / VIDIOC_QUERYBUF: %ld\n", err);
1058                 goto done;
1059         }
1060         if (!(buf.flags & V4L2_BUF_FLAG_MAPPED)) {
1061                 /* Buffer is not mapped  */
1062                 err = -EINVAL;
1063                 goto done;
1064         }
1065
1066         /* make sure capture actually runs so we don't block forever */
1067         err = drv(file, VIDIOC_STREAMON, &captype);
1068         if (err < 0) {
1069                 dprintk("VIDIOCSYNC / VIDIOC_STREAMON: %ld\n", err);
1070                 goto done;
1071         }
1072
1073         pwq = kmalloc(sizeof(*pwq), GFP_KERNEL);
1074         /*  Loop as long as the buffer is queued, but not done  */
1075         while ((buf.flags & (V4L2_BUF_FLAG_QUEUED | V4L2_BUF_FLAG_DONE))
1076                                                 == V4L2_BUF_FLAG_QUEUED) {
1077                 err = poll_one(file, pwq);
1078                 if (err < 0 ||  /* error or sleep was interrupted  */
1079                     err == 0)   /* timeout? Shouldn't occur.  */
1080                         break;
1081                 err = drv(file, VIDIOC_QUERYBUF, &buf);
1082                 if (err < 0)
1083                         dprintk("VIDIOCSYNC / VIDIOC_QUERYBUF: %ld\n", err);
1084         }
1085         kfree(pwq);
1086         if (!(buf.flags & V4L2_BUF_FLAG_DONE)) /* not done */
1087                 goto done;
1088         do {
1089                 err = drv(file, VIDIOC_DQBUF, &buf);
1090                 if (err < 0)
1091                         dprintk("VIDIOCSYNC / VIDIOC_DQBUF: %ld\n", err);
1092         } while (err == 0 && buf.index != *i);
1093 done:
1094         return err;
1095 }
1096
1097 static noinline long v4l1_compat_get_vbi_format(
1098                                 struct vbi_format *fmt,
1099                                 struct file *file,
1100                                 v4l2_kioctl drv)
1101 {
1102         long err;
1103         struct v4l2_format *fmt2;
1104
1105         fmt2 = kzalloc(sizeof(*fmt2), GFP_KERNEL);
1106         if (!fmt2) {
1107                 err = -ENOMEM;
1108                 return err;
1109         }
1110         fmt2->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1111
1112         err = drv(file, VIDIOC_G_FMT, fmt2);
1113         if (err < 0) {
1114                 dprintk("VIDIOCGVBIFMT / VIDIOC_G_FMT: %ld\n", err);
1115                 goto done;
1116         }
1117         if (fmt2->fmt.vbi.sample_format != V4L2_PIX_FMT_GREY) {
1118                 err = -EINVAL;
1119                 goto done;
1120         }
1121         memset(fmt, 0, sizeof(*fmt));
1122         fmt->samples_per_line = fmt2->fmt.vbi.samples_per_line;
1123         fmt->sampling_rate    = fmt2->fmt.vbi.sampling_rate;
1124         fmt->sample_format    = VIDEO_PALETTE_RAW;
1125         fmt->start[0]         = fmt2->fmt.vbi.start[0];
1126         fmt->count[0]         = fmt2->fmt.vbi.count[0];
1127         fmt->start[1]         = fmt2->fmt.vbi.start[1];
1128         fmt->count[1]         = fmt2->fmt.vbi.count[1];
1129         fmt->flags            = fmt2->fmt.vbi.flags & 0x03;
1130 done:
1131         kfree(fmt2);
1132         return err;
1133 }
1134
1135 static noinline long v4l1_compat_set_vbi_format(
1136                                 struct vbi_format *fmt,
1137                                 struct file *file,
1138                                 v4l2_kioctl drv)
1139 {
1140         long err;
1141         struct v4l2_format      *fmt2 = NULL;
1142
1143         if (VIDEO_PALETTE_RAW != fmt->sample_format) {
1144                 err = -EINVAL;
1145                 return err;
1146         }
1147
1148         fmt2 = kzalloc(sizeof(*fmt2), GFP_KERNEL);
1149         if (!fmt2) {
1150                 err = -ENOMEM;
1151                 return err;
1152         }
1153         fmt2->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1154         fmt2->fmt.vbi.samples_per_line = fmt->samples_per_line;
1155         fmt2->fmt.vbi.sampling_rate    = fmt->sampling_rate;
1156         fmt2->fmt.vbi.sample_format    = V4L2_PIX_FMT_GREY;
1157         fmt2->fmt.vbi.start[0]         = fmt->start[0];
1158         fmt2->fmt.vbi.count[0]         = fmt->count[0];
1159         fmt2->fmt.vbi.start[1]         = fmt->start[1];
1160         fmt2->fmt.vbi.count[1]         = fmt->count[1];
1161         fmt2->fmt.vbi.flags            = fmt->flags;
1162         err = drv(file, VIDIOC_TRY_FMT, fmt2);
1163         if (err < 0) {
1164                 dprintk("VIDIOCSVBIFMT / VIDIOC_TRY_FMT: %ld\n", err);
1165                 goto done;
1166         }
1167
1168         if (fmt2->fmt.vbi.samples_per_line != fmt->samples_per_line ||
1169             fmt2->fmt.vbi.sampling_rate    != fmt->sampling_rate    ||
1170             fmt2->fmt.vbi.sample_format    != V4L2_PIX_FMT_GREY     ||
1171             fmt2->fmt.vbi.start[0]         != fmt->start[0]         ||
1172             fmt2->fmt.vbi.count[0]         != fmt->count[0]         ||
1173             fmt2->fmt.vbi.start[1]         != fmt->start[1]         ||
1174             fmt2->fmt.vbi.count[1]         != fmt->count[1]         ||
1175             fmt2->fmt.vbi.flags            != fmt->flags) {
1176                 err = -EINVAL;
1177                 goto done;
1178         }
1179         err = drv(file, VIDIOC_S_FMT, fmt2);
1180         if (err < 0)
1181                 dprintk("VIDIOCSVBIFMT / VIDIOC_S_FMT: %ld\n", err);
1182 done:
1183         kfree(fmt2);
1184         return err;
1185 }
1186
1187 /*
1188  *      This function is exported.
1189  */
1190 long
1191 v4l_compat_translate_ioctl(struct file          *file,
1192                            int                  cmd,
1193                            void                 *arg,
1194                            v4l2_kioctl          drv)
1195 {
1196         long err;
1197
1198         switch (cmd) {
1199         case VIDIOCGCAP:        /* capability */
1200                 err = v4l1_compat_get_capabilities(arg, file, drv);
1201                 break;
1202         case VIDIOCGFBUF: /*  get frame buffer  */
1203                 err = v4l1_compat_get_frame_buffer(arg, file, drv);
1204                 break;
1205         case VIDIOCSFBUF: /*  set frame buffer  */
1206                 err = v4l1_compat_set_frame_buffer(arg, file, drv);
1207                 break;
1208         case VIDIOCGWIN: /*  get window or capture dimensions  */
1209                 err = v4l1_compat_get_win_cap_dimensions(arg, file, drv);
1210                 break;
1211         case VIDIOCSWIN: /*  set window and/or capture dimensions  */
1212                 err = v4l1_compat_set_win_cap_dimensions(arg, file, drv);
1213                 break;
1214         case VIDIOCCAPTURE: /*  turn on/off preview  */
1215                 err = v4l1_compat_turn_preview_on_off(arg, file, drv);
1216                 break;
1217         case VIDIOCGCHAN: /*  get input information  */
1218                 err = v4l1_compat_get_input_info(arg, file, drv);
1219                 break;
1220         case VIDIOCSCHAN: /*  set input  */
1221                 err = v4l1_compat_set_input(arg, file, drv);
1222                 break;
1223         case VIDIOCGPICT: /*  get tone controls & partial capture format  */
1224                 err = v4l1_compat_get_picture(arg, file, drv);
1225                 break;
1226         case VIDIOCSPICT: /*  set tone controls & partial capture format  */
1227                 err = v4l1_compat_set_picture(arg, file, drv);
1228                 break;
1229         case VIDIOCGTUNER: /*  get tuner information  */
1230                 err = v4l1_compat_get_tuner(arg, file, drv);
1231                 break;
1232         case VIDIOCSTUNER: /*  select a tuner input  */
1233                 err = v4l1_compat_select_tuner(arg, file, drv);
1234                 break;
1235         case VIDIOCGFREQ: /*  get frequency  */
1236                 err = v4l1_compat_get_frequency(arg, file, drv);
1237                 break;
1238         case VIDIOCSFREQ: /*  set frequency  */
1239                 err = v4l1_compat_set_frequency(arg, file, drv);
1240                 break;
1241         case VIDIOCGAUDIO: /*  get audio properties/controls  */
1242                 err = v4l1_compat_get_audio(arg, file, drv);
1243                 break;
1244         case VIDIOCSAUDIO: /*  set audio controls  */
1245                 err = v4l1_compat_set_audio(arg, file, drv);
1246                 break;
1247         case VIDIOCMCAPTURE: /*  capture a frame  */
1248                 err = v4l1_compat_capture_frame(arg, file, drv);
1249                 break;
1250         case VIDIOCSYNC: /*  wait for a frame  */
1251                 err = v4l1_compat_sync(arg, file, drv);
1252                 break;
1253         case VIDIOCGVBIFMT: /* query VBI data capture format */
1254                 err = v4l1_compat_get_vbi_format(arg, file, drv);
1255                 break;
1256         case VIDIOCSVBIFMT:
1257                 err = v4l1_compat_set_vbi_format(arg, file, drv);
1258                 break;
1259         default:
1260                 err = -ENOIOCTLCMD;
1261                 break;
1262         }
1263
1264         return err;
1265 }
1266 EXPORT_SYMBOL(v4l_compat_translate_ioctl);
1267
1268 /*
1269  * Local variables:
1270  * c-basic-offset: 8
1271  * End:
1272  */