remove CONFIG_KMOD from drivers
[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 inode            *inode,
61                 struct file             *file,
62                 int                     cid,
63                 v4l2_kioctl             drv)
64 {
65         struct v4l2_queryctrl   qctrl2;
66         struct v4l2_control     ctrl2;
67         int                     err;
68
69         qctrl2.id = cid;
70         err = drv(inode, file, VIDIOC_QUERYCTRL, &qctrl2);
71         if (err < 0)
72                 dprintk("VIDIOC_QUERYCTRL: %d\n", err);
73         if (err == 0 && !(qctrl2.flags & V4L2_CTRL_FLAG_DISABLED)) {
74                 ctrl2.id = qctrl2.id;
75                 err = drv(inode, file, VIDIOC_G_CTRL, &ctrl2);
76                 if (err < 0) {
77                         dprintk("VIDIOC_G_CTRL: %d\n", err);
78                         return 0;
79                 }
80                 return ((ctrl2.value - qctrl2.minimum) * 65535
81                          + (qctrl2.maximum - qctrl2.minimum) / 2)
82                         / (qctrl2.maximum - qctrl2.minimum);
83         }
84         return 0;
85 }
86
87 static int
88 set_v4l_control(struct inode            *inode,
89                 struct file             *file,
90                 int                     cid,
91                 int                     value,
92                 v4l2_kioctl             drv)
93 {
94         struct v4l2_queryctrl   qctrl2;
95         struct v4l2_control     ctrl2;
96         int                     err;
97
98         qctrl2.id = cid;
99         err = drv(inode, file, VIDIOC_QUERYCTRL, &qctrl2);
100         if (err < 0)
101                 dprintk("VIDIOC_QUERYCTRL: %d\n", err);
102         if (err == 0 &&
103             !(qctrl2.flags & V4L2_CTRL_FLAG_DISABLED) &&
104             !(qctrl2.flags & V4L2_CTRL_FLAG_GRABBED)) {
105                 if (value < 0)
106                         value = 0;
107                 if (value > 65535)
108                         value = 65535;
109                 if (value && qctrl2.type == V4L2_CTRL_TYPE_BOOLEAN)
110                         value = 65535;
111                 ctrl2.id = qctrl2.id;
112                 ctrl2.value =
113                         (value * (qctrl2.maximum - qctrl2.minimum)
114                          + 32767)
115                         / 65535;
116                 ctrl2.value += qctrl2.minimum;
117                 err = drv(inode, file, VIDIOC_S_CTRL, &ctrl2);
118                 if (err < 0)
119                         dprintk("VIDIOC_S_CTRL: %d\n", err);
120         }
121         return 0;
122 }
123
124 /* ----------------------------------------------------------------- */
125
126 static const unsigned int palette2pixelformat[] = {
127         [VIDEO_PALETTE_GREY]    = V4L2_PIX_FMT_GREY,
128         [VIDEO_PALETTE_RGB555]  = V4L2_PIX_FMT_RGB555,
129         [VIDEO_PALETTE_RGB565]  = V4L2_PIX_FMT_RGB565,
130         [VIDEO_PALETTE_RGB24]   = V4L2_PIX_FMT_BGR24,
131         [VIDEO_PALETTE_RGB32]   = V4L2_PIX_FMT_BGR32,
132         /* yuv packed pixel */
133         [VIDEO_PALETTE_YUYV]    = V4L2_PIX_FMT_YUYV,
134         [VIDEO_PALETTE_YUV422]  = V4L2_PIX_FMT_YUYV,
135         [VIDEO_PALETTE_UYVY]    = V4L2_PIX_FMT_UYVY,
136         /* yuv planar */
137         [VIDEO_PALETTE_YUV410P] = V4L2_PIX_FMT_YUV410,
138         [VIDEO_PALETTE_YUV420]  = V4L2_PIX_FMT_YUV420,
139         [VIDEO_PALETTE_YUV420P] = V4L2_PIX_FMT_YUV420,
140         [VIDEO_PALETTE_YUV411P] = V4L2_PIX_FMT_YUV411P,
141         [VIDEO_PALETTE_YUV422P] = V4L2_PIX_FMT_YUV422P,
142 };
143
144 static unsigned int __pure
145 palette_to_pixelformat(unsigned int palette)
146 {
147         if (palette < ARRAY_SIZE(palette2pixelformat))
148                 return palette2pixelformat[palette];
149         else
150                 return 0;
151 }
152
153 static unsigned int __attribute_const__
154 pixelformat_to_palette(unsigned int pixelformat)
155 {
156         int     palette = 0;
157         switch (pixelformat) {
158         case V4L2_PIX_FMT_GREY:
159                 palette = VIDEO_PALETTE_GREY;
160                 break;
161         case V4L2_PIX_FMT_RGB555:
162                 palette = VIDEO_PALETTE_RGB555;
163                 break;
164         case V4L2_PIX_FMT_RGB565:
165                 palette = VIDEO_PALETTE_RGB565;
166                 break;
167         case V4L2_PIX_FMT_BGR24:
168                 palette = VIDEO_PALETTE_RGB24;
169                 break;
170         case V4L2_PIX_FMT_BGR32:
171                 palette = VIDEO_PALETTE_RGB32;
172                 break;
173         /* yuv packed pixel */
174         case V4L2_PIX_FMT_YUYV:
175                 palette = VIDEO_PALETTE_YUYV;
176                 break;
177         case V4L2_PIX_FMT_UYVY:
178                 palette = VIDEO_PALETTE_UYVY;
179                 break;
180         /* yuv planar */
181         case V4L2_PIX_FMT_YUV410:
182                 palette = VIDEO_PALETTE_YUV420;
183                 break;
184         case V4L2_PIX_FMT_YUV420:
185                 palette = VIDEO_PALETTE_YUV420;
186                 break;
187         case V4L2_PIX_FMT_YUV411P:
188                 palette = VIDEO_PALETTE_YUV411P;
189                 break;
190         case V4L2_PIX_FMT_YUV422P:
191                 palette = VIDEO_PALETTE_YUV422P;
192                 break;
193         }
194         return palette;
195 }
196
197 /* ----------------------------------------------------------------- */
198
199 static int poll_one(struct file *file, struct poll_wqueues *pwq)
200 {
201         int retval = 1;
202         poll_table *table;
203
204         poll_initwait(pwq);
205         table = &pwq->pt;
206         for (;;) {
207                 int mask;
208                 set_current_state(TASK_INTERRUPTIBLE);
209                 mask = file->f_op->poll(file, table);
210                 if (mask & POLLIN)
211                         break;
212                 table = NULL;
213                 if (signal_pending(current)) {
214                         retval = -ERESTARTSYS;
215                         break;
216                 }
217                 schedule();
218         }
219         set_current_state(TASK_RUNNING);
220         poll_freewait(pwq);
221         return retval;
222 }
223
224 static int count_inputs(
225                         struct inode *inode,
226                         struct file *file,
227                         v4l2_kioctl drv)
228 {
229         struct v4l2_input input2;
230         int i;
231
232         for (i = 0;; i++) {
233                 memset(&input2, 0, sizeof(input2));
234                 input2.index = i;
235                 if (0 != drv(inode, file, VIDIOC_ENUMINPUT, &input2))
236                         break;
237         }
238         return i;
239 }
240
241 static int check_size(
242                 struct inode *inode,
243                 struct file *file,
244                 v4l2_kioctl drv,
245                 int *maxw,
246                 int *maxh)
247 {
248         struct v4l2_fmtdesc desc2;
249         struct v4l2_format  fmt2;
250
251         memset(&desc2, 0, sizeof(desc2));
252         memset(&fmt2, 0, sizeof(fmt2));
253
254         desc2.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
255         if (0 != drv(inode, file, VIDIOC_ENUM_FMT, &desc2))
256                 goto done;
257
258         fmt2.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
259         fmt2.fmt.pix.width       = 10000;
260         fmt2.fmt.pix.height      = 10000;
261         fmt2.fmt.pix.pixelformat = desc2.pixelformat;
262         if (0 != drv(inode, file, VIDIOC_TRY_FMT, &fmt2))
263                 goto done;
264
265         *maxw = fmt2.fmt.pix.width;
266         *maxh = fmt2.fmt.pix.height;
267
268 done:
269         return 0;
270 }
271
272 /* ----------------------------------------------------------------- */
273
274 static noinline int v4l1_compat_get_capabilities(
275                                         struct video_capability *cap,
276                                         struct inode *inode,
277                                         struct file *file,
278                                         v4l2_kioctl drv)
279 {
280         int err;
281         struct v4l2_framebuffer fbuf;
282         struct v4l2_capability *cap2;
283
284         cap2 = kzalloc(sizeof(*cap2), GFP_KERNEL);
285         if (!cap2) {
286                 err = -ENOMEM;
287                 return err;
288         }
289         memset(cap, 0, sizeof(*cap));
290         memset(&fbuf, 0, sizeof(fbuf));
291
292         err = drv(inode, file, VIDIOC_QUERYCAP, cap2);
293         if (err < 0) {
294                 dprintk("VIDIOCGCAP / VIDIOC_QUERYCAP: %d\n", err);
295                 goto done;
296         }
297         if (cap2->capabilities & V4L2_CAP_VIDEO_OVERLAY) {
298                 err = drv(inode, file, VIDIOC_G_FBUF, &fbuf);
299                 if (err < 0) {
300                         dprintk("VIDIOCGCAP / VIDIOC_G_FBUF: %d\n", err);
301                         memset(&fbuf, 0, sizeof(fbuf));
302                 }
303                 err = 0;
304         }
305
306         memcpy(cap->name, cap2->card,
307                min(sizeof(cap->name), sizeof(cap2->card)));
308         cap->name[sizeof(cap->name) - 1] = 0;
309         if (cap2->capabilities & V4L2_CAP_VIDEO_CAPTURE)
310                 cap->type |= VID_TYPE_CAPTURE;
311         if (cap2->capabilities & V4L2_CAP_TUNER)
312                 cap->type |= VID_TYPE_TUNER;
313         if (cap2->capabilities & V4L2_CAP_VBI_CAPTURE)
314                 cap->type |= VID_TYPE_TELETEXT;
315         if (cap2->capabilities & V4L2_CAP_VIDEO_OVERLAY)
316                 cap->type |= VID_TYPE_OVERLAY;
317         if (fbuf.capability & V4L2_FBUF_CAP_LIST_CLIPPING)
318                 cap->type |= VID_TYPE_CLIPPING;
319
320         cap->channels  = count_inputs(inode, file, drv);
321         check_size(inode, file, drv,
322                    &cap->maxwidth, &cap->maxheight);
323         cap->audios    =  0; /* FIXME */
324         cap->minwidth  = 48; /* FIXME */
325         cap->minheight = 32; /* FIXME */
326
327 done:
328         kfree(cap2);
329         return err;
330 }
331
332 static noinline int v4l1_compat_get_frame_buffer(
333                                         struct video_buffer *buffer,
334                                         struct inode *inode,
335                                         struct file *file,
336                                         v4l2_kioctl drv)
337 {
338         int err;
339         struct v4l2_framebuffer fbuf;
340
341         memset(buffer, 0, sizeof(*buffer));
342         memset(&fbuf, 0, sizeof(fbuf));
343
344         err = drv(inode, file, VIDIOC_G_FBUF, &fbuf);
345         if (err < 0) {
346                 dprintk("VIDIOCGFBUF / VIDIOC_G_FBUF: %d\n", err);
347                 goto done;
348         }
349         buffer->base   = fbuf.base;
350         buffer->height = fbuf.fmt.height;
351         buffer->width  = fbuf.fmt.width;
352
353         switch (fbuf.fmt.pixelformat) {
354         case V4L2_PIX_FMT_RGB332:
355                 buffer->depth = 8;
356                 break;
357         case V4L2_PIX_FMT_RGB555:
358                 buffer->depth = 15;
359                 break;
360         case V4L2_PIX_FMT_RGB565:
361                 buffer->depth = 16;
362                 break;
363         case V4L2_PIX_FMT_BGR24:
364                 buffer->depth = 24;
365                 break;
366         case V4L2_PIX_FMT_BGR32:
367                 buffer->depth = 32;
368                 break;
369         default:
370                 buffer->depth = 0;
371         }
372         if (fbuf.fmt.bytesperline) {
373                 buffer->bytesperline = fbuf.fmt.bytesperline;
374                 if (!buffer->depth && buffer->width)
375                         buffer->depth   = ((fbuf.fmt.bytesperline<<3)
376                                           + (buffer->width-1))
377                                           / buffer->width;
378         } else {
379                 buffer->bytesperline =
380                         (buffer->width * buffer->depth + 7) & 7;
381                 buffer->bytesperline >>= 3;
382         }
383 done:
384         return err;
385 }
386
387 static noinline int v4l1_compat_set_frame_buffer(
388                                         struct video_buffer *buffer,
389                                         struct inode *inode,
390                                         struct file *file,
391                                         v4l2_kioctl drv)
392 {
393         int err;
394         struct v4l2_framebuffer fbuf;
395
396         memset(&fbuf, 0, sizeof(fbuf));
397         fbuf.base       = buffer->base;
398         fbuf.fmt.height = buffer->height;
399         fbuf.fmt.width  = buffer->width;
400         switch (buffer->depth) {
401         case 8:
402                 fbuf.fmt.pixelformat = V4L2_PIX_FMT_RGB332;
403                 break;
404         case 15:
405                 fbuf.fmt.pixelformat = V4L2_PIX_FMT_RGB555;
406                 break;
407         case 16:
408                 fbuf.fmt.pixelformat = V4L2_PIX_FMT_RGB565;
409                 break;
410         case 24:
411                 fbuf.fmt.pixelformat = V4L2_PIX_FMT_BGR24;
412                 break;
413         case 32:
414                 fbuf.fmt.pixelformat = V4L2_PIX_FMT_BGR32;
415                 break;
416         }
417         fbuf.fmt.bytesperline = buffer->bytesperline;
418         err = drv(inode, file, VIDIOC_S_FBUF, &fbuf);
419         if (err < 0)
420                 dprintk("VIDIOCSFBUF / VIDIOC_S_FBUF: %d\n", err);
421         return err;
422 }
423
424 static noinline int v4l1_compat_get_win_cap_dimensions(
425                                         struct video_window *win,
426                                         struct inode *inode,
427                                         struct file *file,
428                                         v4l2_kioctl drv)
429 {
430         int err;
431         struct v4l2_format *fmt;
432
433         fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
434         if (!fmt) {
435                 err = -ENOMEM;
436                 return err;
437         }
438         memset(win, 0, sizeof(*win));
439
440         fmt->type = V4L2_BUF_TYPE_VIDEO_OVERLAY;
441         err = drv(inode, file, VIDIOC_G_FMT, fmt);
442         if (err < 0)
443                 dprintk("VIDIOCGWIN / VIDIOC_G_WIN: %d\n", err);
444         if (err == 0) {
445                 win->x         = fmt->fmt.win.w.left;
446                 win->y         = fmt->fmt.win.w.top;
447                 win->width     = fmt->fmt.win.w.width;
448                 win->height    = fmt->fmt.win.w.height;
449                 win->chromakey = fmt->fmt.win.chromakey;
450                 win->clips     = NULL;
451                 win->clipcount = 0;
452                 goto done;
453         }
454
455         fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
456         err = drv(inode, file, VIDIOC_G_FMT, fmt);
457         if (err < 0) {
458                 dprintk("VIDIOCGWIN / VIDIOC_G_FMT: %d\n", err);
459                 goto done;
460         }
461         win->x         = 0;
462         win->y         = 0;
463         win->width     = fmt->fmt.pix.width;
464         win->height    = fmt->fmt.pix.height;
465         win->chromakey = 0;
466         win->clips     = NULL;
467         win->clipcount = 0;
468 done:
469         kfree(fmt);
470         return err;
471 }
472
473 static noinline int v4l1_compat_set_win_cap_dimensions(
474                                         struct video_window *win,
475                                         struct inode *inode,
476                                         struct file *file,
477                                         v4l2_kioctl drv)
478 {
479         int err, err1, err2;
480         struct v4l2_format *fmt;
481
482         fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
483         if (!fmt) {
484                 err = -ENOMEM;
485                 return err;
486         }
487         fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
488         drv(inode, file, VIDIOC_STREAMOFF, &fmt->type);
489         err1 = drv(inode, file, VIDIOC_G_FMT, fmt);
490         if (err1 < 0)
491                 dprintk("VIDIOCSWIN / VIDIOC_G_FMT: %d\n", err1);
492         if (err1 == 0) {
493                 fmt->fmt.pix.width  = win->width;
494                 fmt->fmt.pix.height = win->height;
495                 fmt->fmt.pix.field  = V4L2_FIELD_ANY;
496                 fmt->fmt.pix.bytesperline = 0;
497                 err = drv(inode, file, VIDIOC_S_FMT, fmt);
498                 if (err < 0)
499                         dprintk("VIDIOCSWIN / VIDIOC_S_FMT #1: %d\n",
500                                 err);
501                 win->width  = fmt->fmt.pix.width;
502                 win->height = fmt->fmt.pix.height;
503         }
504
505         memset(fmt, 0, sizeof(*fmt));
506         fmt->type = V4L2_BUF_TYPE_VIDEO_OVERLAY;
507         fmt->fmt.win.w.left    = win->x;
508         fmt->fmt.win.w.top     = win->y;
509         fmt->fmt.win.w.width   = win->width;
510         fmt->fmt.win.w.height  = win->height;
511         fmt->fmt.win.chromakey = win->chromakey;
512         fmt->fmt.win.clips     = (void __user *)win->clips;
513         fmt->fmt.win.clipcount = win->clipcount;
514         err2 = drv(inode, file, VIDIOC_S_FMT, fmt);
515         if (err2 < 0)
516                 dprintk("VIDIOCSWIN / VIDIOC_S_FMT #2: %d\n", err2);
517
518         if (err1 != 0 && err2 != 0)
519                 err = err1;
520         else
521                 err = 0;
522         kfree(fmt);
523         return err;
524 }
525
526 static noinline int v4l1_compat_turn_preview_on_off(
527                                         int *on,
528                                         struct inode *inode,
529                                         struct file *file,
530                                         v4l2_kioctl drv)
531 {
532         int err;
533         enum v4l2_buf_type captype = V4L2_BUF_TYPE_VIDEO_CAPTURE;
534
535         if (0 == *on) {
536                 /* dirty hack time.  But v4l1 has no STREAMOFF
537                  * equivalent in the API, and this one at
538                  * least comes close ... */
539                 drv(inode, file, VIDIOC_STREAMOFF, &captype);
540         }
541         err = drv(inode, file, VIDIOC_OVERLAY, on);
542         if (err < 0)
543                 dprintk("VIDIOCCAPTURE / VIDIOC_PREVIEW: %d\n", err);
544         return err;
545 }
546
547 static noinline int v4l1_compat_get_input_info(
548                                         struct video_channel *chan,
549                                         struct inode *inode,
550                                         struct file *file,
551                                         v4l2_kioctl drv)
552 {
553         int err;
554         struct v4l2_input       input2;
555         v4l2_std_id             sid;
556
557         memset(&input2, 0, sizeof(input2));
558         input2.index = chan->channel;
559         err = drv(inode, file, VIDIOC_ENUMINPUT, &input2);
560         if (err < 0) {
561                 dprintk("VIDIOCGCHAN / VIDIOC_ENUMINPUT: "
562                         "channel=%d err=%d\n", chan->channel, err);
563                 goto done;
564         }
565         chan->channel = input2.index;
566         memcpy(chan->name, input2.name,
567                min(sizeof(chan->name), sizeof(input2.name)));
568         chan->name[sizeof(chan->name) - 1] = 0;
569         chan->tuners = (input2.type == V4L2_INPUT_TYPE_TUNER) ? 1 : 0;
570         chan->flags = (chan->tuners) ? VIDEO_VC_TUNER : 0;
571         switch (input2.type) {
572         case V4L2_INPUT_TYPE_TUNER:
573                 chan->type = VIDEO_TYPE_TV;
574                 break;
575         default:
576         case V4L2_INPUT_TYPE_CAMERA:
577                 chan->type = VIDEO_TYPE_CAMERA;
578                 break;
579         }
580         chan->norm = 0;
581         err = drv(inode, file, VIDIOC_G_STD, &sid);
582         if (err < 0)
583                 dprintk("VIDIOCGCHAN / VIDIOC_G_STD: %d\n", err);
584         if (err == 0) {
585                 if (sid & V4L2_STD_PAL)
586                         chan->norm = VIDEO_MODE_PAL;
587                 if (sid & V4L2_STD_NTSC)
588                         chan->norm = VIDEO_MODE_NTSC;
589                 if (sid & V4L2_STD_SECAM)
590                         chan->norm = VIDEO_MODE_SECAM;
591         }
592 done:
593         return err;
594 }
595
596 static noinline int v4l1_compat_set_input(
597                                         struct video_channel *chan,
598                                         struct inode *inode,
599                                         struct file *file,
600                                         v4l2_kioctl drv)
601 {
602         int err;
603         v4l2_std_id sid = 0;
604
605         err = drv(inode, file, VIDIOC_S_INPUT, &chan->channel);
606         if (err < 0)
607                 dprintk("VIDIOCSCHAN / VIDIOC_S_INPUT: %d\n", err);
608         switch (chan->norm) {
609         case VIDEO_MODE_PAL:
610                 sid = V4L2_STD_PAL;
611                 break;
612         case VIDEO_MODE_NTSC:
613                 sid = V4L2_STD_NTSC;
614                 break;
615         case VIDEO_MODE_SECAM:
616                 sid = V4L2_STD_SECAM;
617                 break;
618         }
619         if (0 != sid) {
620                 err = drv(inode, file, VIDIOC_S_STD, &sid);
621                 if (err < 0)
622                         dprintk("VIDIOCSCHAN / VIDIOC_S_STD: %d\n", err);
623         }
624         return err;
625 }
626
627 static noinline int v4l1_compat_get_picture(
628                                         struct video_picture *pict,
629                                         struct inode *inode,
630                                         struct file *file,
631                                         v4l2_kioctl drv)
632 {
633         int err;
634         struct v4l2_format *fmt;
635
636         fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
637         if (!fmt) {
638                 err = -ENOMEM;
639                 return err;
640         }
641
642         pict->brightness = get_v4l_control(inode, file,
643                                            V4L2_CID_BRIGHTNESS, drv);
644         pict->hue = get_v4l_control(inode, file,
645                                     V4L2_CID_HUE, drv);
646         pict->contrast = get_v4l_control(inode, file,
647                                          V4L2_CID_CONTRAST, drv);
648         pict->colour = get_v4l_control(inode, file,
649                                        V4L2_CID_SATURATION, drv);
650         pict->whiteness = get_v4l_control(inode, file,
651                                           V4L2_CID_WHITENESS, drv);
652
653         fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
654         err = drv(inode, file, VIDIOC_G_FMT, fmt);
655         if (err < 0) {
656                 dprintk("VIDIOCGPICT / VIDIOC_G_FMT: %d\n", err);
657                 goto done;
658         }
659
660         pict->depth   = ((fmt->fmt.pix.bytesperline << 3)
661                          + (fmt->fmt.pix.width - 1))
662                          / fmt->fmt.pix.width;
663         pict->palette = pixelformat_to_palette(
664                 fmt->fmt.pix.pixelformat);
665 done:
666         kfree(fmt);
667         return err;
668 }
669
670 static noinline int v4l1_compat_set_picture(
671                                         struct video_picture *pict,
672                                         struct inode *inode,
673                                         struct file *file,
674                                         v4l2_kioctl drv)
675 {
676         int err;
677         struct v4l2_framebuffer fbuf;
678         int mem_err = 0, ovl_err = 0;
679         struct v4l2_format *fmt;
680
681         fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
682         if (!fmt) {
683                 err = -ENOMEM;
684                 return err;
685         }
686         memset(&fbuf, 0, sizeof(fbuf));
687
688         set_v4l_control(inode, file,
689                         V4L2_CID_BRIGHTNESS, pict->brightness, drv);
690         set_v4l_control(inode, file,
691                         V4L2_CID_HUE, pict->hue, drv);
692         set_v4l_control(inode, file,
693                         V4L2_CID_CONTRAST, pict->contrast, drv);
694         set_v4l_control(inode, file,
695                         V4L2_CID_SATURATION, pict->colour, drv);
696         set_v4l_control(inode, file,
697                         V4L2_CID_WHITENESS, pict->whiteness, drv);
698         /*
699          * V4L1 uses this ioctl to set both memory capture and overlay
700          * pixel format, while V4L2 has two different ioctls for this.
701          * Some cards may not support one or the other, and may support
702          * different pixel formats for memory vs overlay.
703          */
704
705         fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
706         err = drv(inode, file, VIDIOC_G_FMT, fmt);
707         /* If VIDIOC_G_FMT failed, then the driver likely doesn't
708            support memory capture.  Trying to set the memory capture
709            parameters would be pointless.  */
710         if (err < 0) {
711                 dprintk("VIDIOCSPICT / VIDIOC_G_FMT: %d\n", err);
712                 mem_err = -1000;  /* didn't even try */
713         } else if (fmt->fmt.pix.pixelformat !=
714                  palette_to_pixelformat(pict->palette)) {
715                 fmt->fmt.pix.pixelformat = palette_to_pixelformat(
716                         pict->palette);
717                 mem_err = drv(inode, file, VIDIOC_S_FMT, fmt);
718                 if (mem_err < 0)
719                         dprintk("VIDIOCSPICT / VIDIOC_S_FMT: %d\n",
720                                 mem_err);
721         }
722
723         err = drv(inode, file, VIDIOC_G_FBUF, &fbuf);
724         /* If VIDIOC_G_FBUF failed, then the driver likely doesn't
725            support overlay.  Trying to set the overlay parameters
726            would be quite pointless.  */
727         if (err < 0) {
728                 dprintk("VIDIOCSPICT / VIDIOC_G_FBUF: %d\n", err);
729                 ovl_err = -1000;  /* didn't even try */
730         } else if (fbuf.fmt.pixelformat !=
731                  palette_to_pixelformat(pict->palette)) {
732                 fbuf.fmt.pixelformat = palette_to_pixelformat(
733                         pict->palette);
734                 ovl_err = drv(inode, file, VIDIOC_S_FBUF, &fbuf);
735                 if (ovl_err < 0)
736                         dprintk("VIDIOCSPICT / VIDIOC_S_FBUF: %d\n",
737                                 ovl_err);
738         }
739         if (ovl_err < 0 && mem_err < 0) {
740                 /* ioctl failed, couldn't set either parameter */
741                 if (mem_err != -1000)
742                         err = mem_err;
743                 else if (ovl_err == -EPERM)
744                         err = 0;
745                 else
746                         err = ovl_err;
747         } else
748                 err = 0;
749         kfree(fmt);
750         return err;
751 }
752
753 static noinline int v4l1_compat_get_tuner(
754                                         struct video_tuner *tun,
755                                         struct inode *inode,
756                                         struct file *file,
757                                         v4l2_kioctl drv)
758 {
759         int err, i;
760         struct v4l2_tuner       tun2;
761         struct v4l2_standard    std2;
762         v4l2_std_id             sid;
763
764         memset(&tun2, 0, sizeof(tun2));
765         err = drv(inode, file, VIDIOC_G_TUNER, &tun2);
766         if (err < 0) {
767                 dprintk("VIDIOCGTUNER / VIDIOC_G_TUNER: %d\n", err);
768                 goto done;
769         }
770         memcpy(tun->name, tun2.name,
771                min(sizeof(tun->name), sizeof(tun2.name)));
772         tun->name[sizeof(tun->name) - 1] = 0;
773         tun->rangelow = tun2.rangelow;
774         tun->rangehigh = tun2.rangehigh;
775         tun->flags = 0;
776         tun->mode = VIDEO_MODE_AUTO;
777
778         for (i = 0; i < 64; i++) {
779                 memset(&std2, 0, sizeof(std2));
780                 std2.index = i;
781                 if (0 != drv(inode, file, VIDIOC_ENUMSTD, &std2))
782                         break;
783                 if (std2.id & V4L2_STD_PAL)
784                         tun->flags |= VIDEO_TUNER_PAL;
785                 if (std2.id & V4L2_STD_NTSC)
786                         tun->flags |= VIDEO_TUNER_NTSC;
787                 if (std2.id & V4L2_STD_SECAM)
788                         tun->flags |= VIDEO_TUNER_SECAM;
789         }
790
791         err = drv(inode, file, VIDIOC_G_STD, &sid);
792         if (err < 0)
793                 dprintk("VIDIOCGTUNER / VIDIOC_G_STD: %d\n", err);
794         if (err == 0) {
795                 if (sid & V4L2_STD_PAL)
796                         tun->mode = VIDEO_MODE_PAL;
797                 if (sid & V4L2_STD_NTSC)
798                         tun->mode = VIDEO_MODE_NTSC;
799                 if (sid & V4L2_STD_SECAM)
800                         tun->mode = VIDEO_MODE_SECAM;
801         }
802
803         if (tun2.capability & V4L2_TUNER_CAP_LOW)
804                 tun->flags |= VIDEO_TUNER_LOW;
805         if (tun2.rxsubchans & V4L2_TUNER_SUB_STEREO)
806                 tun->flags |= VIDEO_TUNER_STEREO_ON;
807         tun->signal = tun2.signal;
808 done:
809         return err;
810 }
811
812 static noinline int v4l1_compat_select_tuner(
813                                         struct video_tuner *tun,
814                                         struct inode *inode,
815                                         struct file *file,
816                                         v4l2_kioctl drv)
817 {
818         int err;
819         struct v4l2_tuner       t;/*84 bytes on x86_64*/
820         memset(&t, 0, sizeof(t));
821
822         t.index = tun->tuner;
823
824         err = drv(inode, file, VIDIOC_S_INPUT, &t);
825         if (err < 0)
826                 dprintk("VIDIOCSTUNER / VIDIOC_S_INPUT: %d\n", err);
827         return err;
828 }
829
830 static noinline int v4l1_compat_get_frequency(
831                                         unsigned long *freq,
832                                         struct inode *inode,
833                                         struct file *file,
834                                         v4l2_kioctl drv)
835 {
836         int err;
837         struct v4l2_frequency   freq2;
838         memset(&freq2, 0, sizeof(freq2));
839
840         freq2.tuner = 0;
841         err = drv(inode, file, VIDIOC_G_FREQUENCY, &freq2);
842         if (err < 0)
843                 dprintk("VIDIOCGFREQ / VIDIOC_G_FREQUENCY: %d\n", err);
844         if (0 == err)
845                 *freq = freq2.frequency;
846         return err;
847 }
848
849 static noinline int v4l1_compat_set_frequency(
850                                         unsigned long *freq,
851                                         struct inode *inode,
852                                         struct file *file,
853                                         v4l2_kioctl drv)
854 {
855         int err;
856         struct v4l2_frequency   freq2;
857         memset(&freq2, 0, sizeof(freq2));
858
859         drv(inode, file, VIDIOC_G_FREQUENCY, &freq2);
860         freq2.frequency = *freq;
861         err = drv(inode, file, VIDIOC_S_FREQUENCY, &freq2);
862         if (err < 0)
863                 dprintk("VIDIOCSFREQ / VIDIOC_S_FREQUENCY: %d\n", err);
864         return err;
865 }
866
867 static noinline int v4l1_compat_get_audio(
868                                         struct video_audio *aud,
869                                         struct inode *inode,
870                                         struct file *file,
871                                         v4l2_kioctl drv)
872 {
873         int err, i;
874         struct v4l2_queryctrl   qctrl2;
875         struct v4l2_audio       aud2;
876         struct v4l2_tuner       tun2;
877         memset(&aud2, 0, sizeof(aud2));
878
879         err = drv(inode, file, VIDIOC_G_AUDIO, &aud2);
880         if (err < 0) {
881                 dprintk("VIDIOCGAUDIO / VIDIOC_G_AUDIO: %d\n", err);
882                 goto done;
883         }
884         memcpy(aud->name, aud2.name,
885                min(sizeof(aud->name), sizeof(aud2.name)));
886         aud->name[sizeof(aud->name) - 1] = 0;
887         aud->audio = aud2.index;
888         aud->flags = 0;
889         i = get_v4l_control(inode, file, V4L2_CID_AUDIO_VOLUME, drv);
890         if (i >= 0) {
891                 aud->volume = i;
892                 aud->flags |= VIDEO_AUDIO_VOLUME;
893         }
894         i = get_v4l_control(inode, file, V4L2_CID_AUDIO_BASS, drv);
895         if (i >= 0) {
896                 aud->bass = i;
897                 aud->flags |= VIDEO_AUDIO_BASS;
898         }
899         i = get_v4l_control(inode, file, V4L2_CID_AUDIO_TREBLE, drv);
900         if (i >= 0) {
901                 aud->treble = i;
902                 aud->flags |= VIDEO_AUDIO_TREBLE;
903         }
904         i = get_v4l_control(inode, file, V4L2_CID_AUDIO_BALANCE, drv);
905         if (i >= 0) {
906                 aud->balance = i;
907                 aud->flags |= VIDEO_AUDIO_BALANCE;
908         }
909         i = get_v4l_control(inode, file, V4L2_CID_AUDIO_MUTE, drv);
910         if (i >= 0) {
911                 if (i)
912                         aud->flags |= VIDEO_AUDIO_MUTE;
913                 aud->flags |= VIDEO_AUDIO_MUTABLE;
914         }
915         aud->step = 1;
916         qctrl2.id = V4L2_CID_AUDIO_VOLUME;
917         if (drv(inode, file, VIDIOC_QUERYCTRL, &qctrl2) == 0 &&
918             !(qctrl2.flags & V4L2_CTRL_FLAG_DISABLED))
919                 aud->step = qctrl2.step;
920         aud->mode = 0;
921
922         memset(&tun2, 0, sizeof(tun2));
923         err = drv(inode, file, VIDIOC_G_TUNER, &tun2);
924         if (err < 0) {
925                 dprintk("VIDIOCGAUDIO / VIDIOC_G_TUNER: %d\n", err);
926                 err = 0;
927                 goto done;
928         }
929
930         if (tun2.rxsubchans & V4L2_TUNER_SUB_LANG2)
931                 aud->mode = VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
932         else if (tun2.rxsubchans & V4L2_TUNER_SUB_STEREO)
933                 aud->mode = VIDEO_SOUND_STEREO;
934         else if (tun2.rxsubchans & V4L2_TUNER_SUB_MONO)
935                 aud->mode = VIDEO_SOUND_MONO;
936 done:
937         return err;
938 }
939
940 static noinline int v4l1_compat_set_audio(
941                                         struct video_audio *aud,
942                                         struct inode *inode,
943                                         struct file *file,
944                                         v4l2_kioctl drv)
945 {
946         int err;
947         struct v4l2_audio       aud2;
948         struct v4l2_tuner       tun2;
949
950         memset(&aud2, 0, sizeof(aud2));
951         memset(&tun2, 0, sizeof(tun2));
952
953         aud2.index = aud->audio;
954         err = drv(inode, file, VIDIOC_S_AUDIO, &aud2);
955         if (err < 0) {
956                 dprintk("VIDIOCSAUDIO / VIDIOC_S_AUDIO: %d\n", err);
957                 goto done;
958         }
959
960         set_v4l_control(inode, file, V4L2_CID_AUDIO_VOLUME,
961                         aud->volume, drv);
962         set_v4l_control(inode, file, V4L2_CID_AUDIO_BASS,
963                         aud->bass, drv);
964         set_v4l_control(inode, file, V4L2_CID_AUDIO_TREBLE,
965                         aud->treble, drv);
966         set_v4l_control(inode, file, V4L2_CID_AUDIO_BALANCE,
967                         aud->balance, drv);
968         set_v4l_control(inode, file, V4L2_CID_AUDIO_MUTE,
969                         !!(aud->flags & VIDEO_AUDIO_MUTE), drv);
970
971         err = drv(inode, file, VIDIOC_G_TUNER, &tun2);
972         if (err < 0)
973                 dprintk("VIDIOCSAUDIO / VIDIOC_G_TUNER: %d\n", err);
974         if (err == 0) {
975                 switch (aud->mode) {
976                 default:
977                 case VIDEO_SOUND_MONO:
978                 case VIDEO_SOUND_LANG1:
979                         tun2.audmode = V4L2_TUNER_MODE_MONO;
980                         break;
981                 case VIDEO_SOUND_STEREO:
982                         tun2.audmode = V4L2_TUNER_MODE_STEREO;
983                         break;
984                 case VIDEO_SOUND_LANG2:
985                         tun2.audmode = V4L2_TUNER_MODE_LANG2;
986                         break;
987                 }
988                 err = drv(inode, file, VIDIOC_S_TUNER, &tun2);
989                 if (err < 0)
990                         dprintk("VIDIOCSAUDIO / VIDIOC_S_TUNER: %d\n", err);
991         }
992         err = 0;
993 done:
994         return err;
995 }
996
997 static noinline int v4l1_compat_capture_frame(
998                                         struct video_mmap *mm,
999                                         struct inode *inode,
1000                                         struct file *file,
1001                                         v4l2_kioctl drv)
1002 {
1003         int err;
1004         enum v4l2_buf_type      captype = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1005         struct v4l2_buffer      buf;
1006         struct v4l2_format      *fmt;
1007
1008         fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
1009         if (!fmt) {
1010                 err = -ENOMEM;
1011                 return err;
1012         }
1013         memset(&buf, 0, sizeof(buf));
1014
1015         fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1016         err = drv(inode, file, VIDIOC_G_FMT, fmt);
1017         if (err < 0) {
1018                 dprintk("VIDIOCMCAPTURE / VIDIOC_G_FMT: %d\n", err);
1019                 goto done;
1020         }
1021         if (mm->width   != fmt->fmt.pix.width  ||
1022             mm->height  != fmt->fmt.pix.height ||
1023             palette_to_pixelformat(mm->format) !=
1024             fmt->fmt.pix.pixelformat) {
1025                 /* New capture format...  */
1026                 fmt->fmt.pix.width = mm->width;
1027                 fmt->fmt.pix.height = mm->height;
1028                 fmt->fmt.pix.pixelformat =
1029                         palette_to_pixelformat(mm->format);
1030                 fmt->fmt.pix.field = V4L2_FIELD_ANY;
1031                 fmt->fmt.pix.bytesperline = 0;
1032                 err = drv(inode, file, VIDIOC_S_FMT, fmt);
1033                 if (err < 0) {
1034                         dprintk("VIDIOCMCAPTURE / VIDIOC_S_FMT: %d\n", err);
1035                         goto done;
1036                 }
1037         }
1038         buf.index = mm->frame;
1039         buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1040         err = drv(inode, file, VIDIOC_QUERYBUF, &buf);
1041         if (err < 0) {
1042                 dprintk("VIDIOCMCAPTURE / VIDIOC_QUERYBUF: %d\n", err);
1043                 goto done;
1044         }
1045         err = drv(inode, file, VIDIOC_QBUF, &buf);
1046         if (err < 0) {
1047                 dprintk("VIDIOCMCAPTURE / VIDIOC_QBUF: %d\n", err);
1048                 goto done;
1049         }
1050         err = drv(inode, file, VIDIOC_STREAMON, &captype);
1051         if (err < 0)
1052                 dprintk("VIDIOCMCAPTURE / VIDIOC_STREAMON: %d\n", err);
1053 done:
1054         kfree(fmt);
1055         return err;
1056 }
1057
1058 static noinline int v4l1_compat_sync(
1059                                 int *i,
1060                                 struct inode *inode,
1061                                 struct file *file,
1062                                 v4l2_kioctl drv)
1063 {
1064         int err;
1065         enum v4l2_buf_type captype = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1066         struct v4l2_buffer buf;
1067         struct poll_wqueues *pwq;
1068
1069         memset(&buf, 0, sizeof(buf));
1070         buf.index = *i;
1071         buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1072         err = drv(inode, file, VIDIOC_QUERYBUF, &buf);
1073         if (err < 0) {
1074                 /*  No such buffer */
1075                 dprintk("VIDIOCSYNC / VIDIOC_QUERYBUF: %d\n", err);
1076                 goto done;
1077         }
1078         if (!(buf.flags & V4L2_BUF_FLAG_MAPPED)) {
1079                 /* Buffer is not mapped  */
1080                 err = -EINVAL;
1081                 goto done;
1082         }
1083
1084         /* make sure capture actually runs so we don't block forever */
1085         err = drv(inode, file, VIDIOC_STREAMON, &captype);
1086         if (err < 0) {
1087                 dprintk("VIDIOCSYNC / VIDIOC_STREAMON: %d\n", err);
1088                 goto done;
1089         }
1090
1091         pwq = kmalloc(sizeof(*pwq), GFP_KERNEL);
1092         /*  Loop as long as the buffer is queued, but not done  */
1093         while ((buf.flags & (V4L2_BUF_FLAG_QUEUED | V4L2_BUF_FLAG_DONE))
1094                                                 == V4L2_BUF_FLAG_QUEUED) {
1095                 err = poll_one(file, pwq);
1096                 if (err < 0 ||  /* error or sleep was interrupted  */
1097                     err == 0)   /* timeout? Shouldn't occur.  */
1098                         break;
1099                 err = drv(inode, file, VIDIOC_QUERYBUF, &buf);
1100                 if (err < 0)
1101                         dprintk("VIDIOCSYNC / VIDIOC_QUERYBUF: %d\n", err);
1102         }
1103         kfree(pwq);
1104         if (!(buf.flags & V4L2_BUF_FLAG_DONE)) /* not done */
1105                 goto done;
1106         do {
1107                 err = drv(inode, file, VIDIOC_DQBUF, &buf);
1108                 if (err < 0)
1109                         dprintk("VIDIOCSYNC / VIDIOC_DQBUF: %d\n", err);
1110         } while (err == 0 && buf.index != *i);
1111 done:
1112         return err;
1113 }
1114
1115 static noinline int v4l1_compat_get_vbi_format(
1116                                 struct vbi_format *fmt,
1117                                 struct inode *inode,
1118                                 struct file *file,
1119                                 v4l2_kioctl drv)
1120 {
1121         int err;
1122         struct v4l2_format *fmt2;
1123
1124         fmt2 = kzalloc(sizeof(*fmt2), GFP_KERNEL);
1125         if (!fmt2) {
1126                 err = -ENOMEM;
1127                 return err;
1128         }
1129         fmt2->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1130
1131         err = drv(inode, file, VIDIOC_G_FMT, fmt2);
1132         if (err < 0) {
1133                 dprintk("VIDIOCGVBIFMT / VIDIOC_G_FMT: %d\n", err);
1134                 goto done;
1135         }
1136         if (fmt2->fmt.vbi.sample_format != V4L2_PIX_FMT_GREY) {
1137                 err = -EINVAL;
1138                 goto done;
1139         }
1140         memset(fmt, 0, sizeof(*fmt));
1141         fmt->samples_per_line = fmt2->fmt.vbi.samples_per_line;
1142         fmt->sampling_rate    = fmt2->fmt.vbi.sampling_rate;
1143         fmt->sample_format    = VIDEO_PALETTE_RAW;
1144         fmt->start[0]         = fmt2->fmt.vbi.start[0];
1145         fmt->count[0]         = fmt2->fmt.vbi.count[0];
1146         fmt->start[1]         = fmt2->fmt.vbi.start[1];
1147         fmt->count[1]         = fmt2->fmt.vbi.count[1];
1148         fmt->flags            = fmt2->fmt.vbi.flags & 0x03;
1149 done:
1150         kfree(fmt2);
1151         return err;
1152 }
1153
1154 static noinline int v4l1_compat_set_vbi_format(
1155                                 struct vbi_format *fmt,
1156                                 struct inode *inode,
1157                                 struct file *file,
1158                                 v4l2_kioctl drv)
1159 {
1160         int err;
1161         struct v4l2_format      *fmt2 = NULL;
1162
1163         if (VIDEO_PALETTE_RAW != fmt->sample_format) {
1164                 err = -EINVAL;
1165                 return err;
1166         }
1167
1168         fmt2 = kzalloc(sizeof(*fmt2), GFP_KERNEL);
1169         if (!fmt2) {
1170                 err = -ENOMEM;
1171                 return err;
1172         }
1173         fmt2->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1174         fmt2->fmt.vbi.samples_per_line = fmt->samples_per_line;
1175         fmt2->fmt.vbi.sampling_rate    = fmt->sampling_rate;
1176         fmt2->fmt.vbi.sample_format    = V4L2_PIX_FMT_GREY;
1177         fmt2->fmt.vbi.start[0]         = fmt->start[0];
1178         fmt2->fmt.vbi.count[0]         = fmt->count[0];
1179         fmt2->fmt.vbi.start[1]         = fmt->start[1];
1180         fmt2->fmt.vbi.count[1]         = fmt->count[1];
1181         fmt2->fmt.vbi.flags            = fmt->flags;
1182         err = drv(inode, file, VIDIOC_TRY_FMT, fmt2);
1183         if (err < 0) {
1184                 dprintk("VIDIOCSVBIFMT / VIDIOC_TRY_FMT: %d\n", err);
1185                 goto done;
1186         }
1187
1188         if (fmt2->fmt.vbi.samples_per_line != fmt->samples_per_line ||
1189             fmt2->fmt.vbi.sampling_rate    != fmt->sampling_rate    ||
1190             fmt2->fmt.vbi.sample_format    != V4L2_PIX_FMT_GREY     ||
1191             fmt2->fmt.vbi.start[0]         != fmt->start[0]         ||
1192             fmt2->fmt.vbi.count[0]         != fmt->count[0]         ||
1193             fmt2->fmt.vbi.start[1]         != fmt->start[1]         ||
1194             fmt2->fmt.vbi.count[1]         != fmt->count[1]         ||
1195             fmt2->fmt.vbi.flags            != fmt->flags) {
1196                 err = -EINVAL;
1197                 goto done;
1198         }
1199         err = drv(inode, file, VIDIOC_S_FMT, fmt2);
1200         if (err < 0)
1201                 dprintk("VIDIOCSVBIFMT / VIDIOC_S_FMT: %d\n", err);
1202 done:
1203         kfree(fmt2);
1204         return err;
1205 }
1206
1207 /*
1208  *      This function is exported.
1209  */
1210 int
1211 v4l_compat_translate_ioctl(struct inode         *inode,
1212                            struct file          *file,
1213                            int                  cmd,
1214                            void                 *arg,
1215                            v4l2_kioctl          drv)
1216 {
1217         int err;
1218
1219         switch (cmd) {
1220         case VIDIOCGCAP:        /* capability */
1221                 err = v4l1_compat_get_capabilities(arg, inode, file, drv);
1222                 break;
1223         case VIDIOCGFBUF: /*  get frame buffer  */
1224                 err = v4l1_compat_get_frame_buffer(arg, inode, file, drv);
1225                 break;
1226         case VIDIOCSFBUF: /*  set frame buffer  */
1227                 err = v4l1_compat_set_frame_buffer(arg, inode, file, drv);
1228                 break;
1229         case VIDIOCGWIN: /*  get window or capture dimensions  */
1230                 err = v4l1_compat_get_win_cap_dimensions(arg, inode, file, drv);
1231                 break;
1232         case VIDIOCSWIN: /*  set window and/or capture dimensions  */
1233                 err = v4l1_compat_set_win_cap_dimensions(arg, inode, file, drv);
1234                 break;
1235         case VIDIOCCAPTURE: /*  turn on/off preview  */
1236                 err = v4l1_compat_turn_preview_on_off(arg, inode, file, drv);
1237                 break;
1238         case VIDIOCGCHAN: /*  get input information  */
1239                 err = v4l1_compat_get_input_info(arg, inode, file, drv);
1240                 break;
1241         case VIDIOCSCHAN: /*  set input  */
1242                 err = v4l1_compat_set_input(arg, inode, file, drv);
1243                 break;
1244         case VIDIOCGPICT: /*  get tone controls & partial capture format  */
1245                 err = v4l1_compat_get_picture(arg, inode, file, drv);
1246                 break;
1247         case VIDIOCSPICT: /*  set tone controls & partial capture format  */
1248                 err = v4l1_compat_set_picture(arg, inode, file, drv);
1249                 break;
1250         case VIDIOCGTUNER: /*  get tuner information  */
1251                 err = v4l1_compat_get_tuner(arg, inode, file, drv);
1252                 break;
1253         case VIDIOCSTUNER: /*  select a tuner input  */
1254                 err = v4l1_compat_select_tuner(arg, inode, file, drv);
1255                 break;
1256         case VIDIOCGFREQ: /*  get frequency  */
1257                 err = v4l1_compat_get_frequency(arg, inode, file, drv);
1258                 break;
1259         case VIDIOCSFREQ: /*  set frequency  */
1260                 err = v4l1_compat_set_frequency(arg, inode, file, drv);
1261                 break;
1262         case VIDIOCGAUDIO: /*  get audio properties/controls  */
1263                 err = v4l1_compat_get_audio(arg, inode, file, drv);
1264                 break;
1265         case VIDIOCSAUDIO: /*  set audio controls  */
1266                 err = v4l1_compat_set_audio(arg, inode, file, drv);
1267                 break;
1268         case VIDIOCMCAPTURE: /*  capture a frame  */
1269                 err = v4l1_compat_capture_frame(arg, inode, file, drv);
1270                 break;
1271         case VIDIOCSYNC: /*  wait for a frame  */
1272                 err = v4l1_compat_sync(arg, inode, file, drv);
1273                 break;
1274         case VIDIOCGVBIFMT: /* query VBI data capture format */
1275                 err = v4l1_compat_get_vbi_format(arg, inode, file, drv);
1276                 break;
1277         case VIDIOCSVBIFMT:
1278                 err = v4l1_compat_set_vbi_format(arg, inode, file, drv);
1279                 break;
1280         default:
1281                 err = -ENOIOCTLCMD;
1282                 break;
1283         }
1284
1285         return err;
1286 }
1287 EXPORT_SYMBOL(v4l_compat_translate_ioctl);
1288
1289 /*
1290  * Local variables:
1291  * c-basic-offset: 8
1292  * End:
1293  */