V4L/DVB (11329): Fix buglets in v4l1 compatibility layer
[linux-2.6.git] / 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  */