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Linux 2.6.34-rc3
[pohmelfs.git] / drivers / media / video / v4l1-compat.c
blob0c2105ca611e023e3059d2629aa9e43ec02ea3d1
1 /*
2 *
3 * Video for Linux Two
4 * Backward Compatibility Layer
5 *
6 * Support subroutines for providing V4L2 drivers with backward
7 * compatibility with applications using the old API.
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version
12 * 2 of the License, or (at your option) any later version.
13 *
14 * Author: Bill Dirks <bill@thedirks.org>
15 * et al.
16 *
17 */
18
19
20 #include <linux/init.h>
21 #include <linux/module.h>
22 #include <linux/types.h>
23 #include <linux/kernel.h>
24 #include <linux/sched.h>
25 #include <linux/mm.h>
26 #include <linux/fs.h>
27 #include <linux/file.h>
28 #include <linux/string.h>
29 #include <linux/errno.h>
30 #include <linux/slab.h>
31 #include <linux/videodev.h>
32 #include <media/v4l2-common.h>
33 #include <media/v4l2-ioctl.h>
34
35 #include <asm/uaccess.h>
36 #include <asm/system.h>
37 #include <asm/pgtable.h>
38
39 static unsigned int debug;
40 module_param(debug, int, 0644);
41 MODULE_PARM_DESC(debug, "enable debug messages");
42 MODULE_AUTHOR("Bill Dirks");
43 MODULE_DESCRIPTION("v4l(1) compatibility layer for v4l2 drivers.");
44 MODULE_LICENSE("GPL");
45
46 #define dprintk(fmt, arg...) \
47 do { \
48 if (debug) \
49 printk(KERN_DEBUG "v4l1-compat: " fmt , ## arg);\
50 } while (0)
51
52 /*
53 * I O C T L T R A N S L A T I O N
54 *
55 * From here on down is the code for translating the numerous
56 * ioctl commands from the old API to the new API.
57 */
58
59 static int
60 get_v4l_control(struct file *file,
61 int cid,
62 v4l2_kioctl drv)
63 {
64 struct v4l2_queryctrl qctrl2;
65 struct v4l2_control ctrl2;
66 int err;
67
68 qctrl2.id = cid;
69 err = drv(file, VIDIOC_QUERYCTRL, &qctrl2);
70 if (err < 0)
71 dprintk("VIDIOC_QUERYCTRL: %d\n", err);
72 if (err == 0 && !(qctrl2.flags & V4L2_CTRL_FLAG_DISABLED)) {
73 ctrl2.id = qctrl2.id;
74 err = drv(file, VIDIOC_G_CTRL, &ctrl2);
75 if (err < 0) {
76 dprintk("VIDIOC_G_CTRL: %d\n", err);
77 return 0;
78 }
79 return DIV_ROUND_CLOSEST((ctrl2.value-qctrl2.minimum) * 65535,
80 qctrl2.maximum - qctrl2.minimum);
81 }
82 return 0;
83 }
84
85 static int
86 set_v4l_control(struct file *file,
87 int cid,
88 int value,
89 v4l2_kioctl drv)
90 {
91 struct v4l2_queryctrl qctrl2;
92 struct v4l2_control ctrl2;
93 int err;
94
95 qctrl2.id = cid;
96 err = drv(file, VIDIOC_QUERYCTRL, &qctrl2);
97 if (err < 0)
98 dprintk("VIDIOC_QUERYCTRL: %d\n", err);
99 if (err == 0 &&
100 !(qctrl2.flags & V4L2_CTRL_FLAG_DISABLED) &&
101 !(qctrl2.flags & V4L2_CTRL_FLAG_GRABBED)) {
102 if (value < 0)
103 value = 0;
104 if (value > 65535)
105 value = 65535;
106 if (value && qctrl2.type == V4L2_CTRL_TYPE_BOOLEAN)
107 value = 65535;
108 ctrl2.id = qctrl2.id;
109 ctrl2.value =
110 (value * (qctrl2.maximum - qctrl2.minimum)
111 + 32767)
112 / 65535;
113 ctrl2.value += qctrl2.minimum;
114 err = drv(file, VIDIOC_S_CTRL, &ctrl2);
115 if (err < 0)
116 dprintk("VIDIOC_S_CTRL: %d\n", err);
117 }
118 return 0;
119 }
120
121 /* ----------------------------------------------------------------- */
122
123 static const unsigned int palette2pixelformat[] = {
124 [VIDEO_PALETTE_GREY] = V4L2_PIX_FMT_GREY,
125 [VIDEO_PALETTE_RGB555] = V4L2_PIX_FMT_RGB555,
126 [VIDEO_PALETTE_RGB565] = V4L2_PIX_FMT_RGB565,
127 [VIDEO_PALETTE_RGB24] = V4L2_PIX_FMT_BGR24,
128 [VIDEO_PALETTE_RGB32] = V4L2_PIX_FMT_BGR32,
129 /* yuv packed pixel */
130 [VIDEO_PALETTE_YUYV] = V4L2_PIX_FMT_YUYV,
131 [VIDEO_PALETTE_YUV422] = V4L2_PIX_FMT_YUYV,
132 [VIDEO_PALETTE_UYVY] = V4L2_PIX_FMT_UYVY,
133 /* yuv planar */
134 [VIDEO_PALETTE_YUV410P] = V4L2_PIX_FMT_YUV410,
135 [VIDEO_PALETTE_YUV420] = V4L2_PIX_FMT_YUV420,
136 [VIDEO_PALETTE_YUV420P] = V4L2_PIX_FMT_YUV420,
137 [VIDEO_PALETTE_YUV411P] = V4L2_PIX_FMT_YUV411P,
138 [VIDEO_PALETTE_YUV422P] = V4L2_PIX_FMT_YUV422P,
139 };
140
141 static unsigned int __pure
142 palette_to_pixelformat(unsigned int palette)
143 {
144 if (palette < ARRAY_SIZE(palette2pixelformat))
145 return palette2pixelformat[palette];
146 else
147 return 0;
148 }
149
150 static unsigned int __attribute_const__
151 pixelformat_to_palette(unsigned int pixelformat)
152 {
153 int palette = 0;
154 switch (pixelformat) {
155 case V4L2_PIX_FMT_GREY:
156 palette = VIDEO_PALETTE_GREY;
157 break;
158 case V4L2_PIX_FMT_RGB555:
159 palette = VIDEO_PALETTE_RGB555;
160 break;
161 case V4L2_PIX_FMT_RGB565:
162 palette = VIDEO_PALETTE_RGB565;
163 break;
164 case V4L2_PIX_FMT_BGR24:
165 palette = VIDEO_PALETTE_RGB24;
166 break;
167 case V4L2_PIX_FMT_BGR32:
168 palette = VIDEO_PALETTE_RGB32;
169 break;
170 /* yuv packed pixel */
171 case V4L2_PIX_FMT_YUYV:
172 palette = VIDEO_PALETTE_YUYV;
173 break;
174 case V4L2_PIX_FMT_UYVY:
175 palette = VIDEO_PALETTE_UYVY;
176 break;
177 /* yuv planar */
178 case V4L2_PIX_FMT_YUV410:
179 palette = VIDEO_PALETTE_YUV420;
180 break;
181 case V4L2_PIX_FMT_YUV420:
182 palette = VIDEO_PALETTE_YUV420;
183 break;
184 case V4L2_PIX_FMT_YUV411P:
185 palette = VIDEO_PALETTE_YUV411P;
186 break;
187 case V4L2_PIX_FMT_YUV422P:
188 palette = VIDEO_PALETTE_YUV422P;
189 break;
190 }
191 return palette;
192 }
193
194 /* ----------------------------------------------------------------- */
195
196 static int poll_one(struct file *file, struct poll_wqueues *pwq)
197 {
198 int retval = 1;
199 poll_table *table;
200
201 poll_initwait(pwq);
202 table = &pwq->pt;
203 for (;;) {
204 int mask;
205 mask = file->f_op->poll(file, table);
206 if (mask & POLLIN)
207 break;
208 table = NULL;
209 if (signal_pending(current)) {
210 retval = -ERESTARTSYS;
211 break;
212 }
213 poll_schedule(pwq, TASK_INTERRUPTIBLE);
214 }
215 poll_freewait(pwq);
216 return retval;
217 }
218
219 static int count_inputs(
220 struct file *file,
221 v4l2_kioctl drv)
222 {
223 struct v4l2_input input2;
224 int i;
225
226 for (i = 0;; i++) {
227 memset(&input2, 0, sizeof(input2));
228 input2.index = i;
229 if (0 != drv(file, VIDIOC_ENUMINPUT, &input2))
230 break;
231 }
232 return i;
233 }
234
235 static int check_size(
236 struct file *file,
237 v4l2_kioctl drv,
238 int *maxw,
239 int *maxh)
240 {
241 struct v4l2_fmtdesc desc2;
242 struct v4l2_format fmt2;
243
244 memset(&desc2, 0, sizeof(desc2));
245 memset(&fmt2, 0, sizeof(fmt2));
246
247 desc2.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
248 if (0 != drv(file, VIDIOC_ENUM_FMT, &desc2))
249 goto done;
250
251 fmt2.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
252 fmt2.fmt.pix.width = 10000;
253 fmt2.fmt.pix.height = 10000;
254 fmt2.fmt.pix.pixelformat = desc2.pixelformat;
255 if (0 != drv(file, VIDIOC_TRY_FMT, &fmt2))
256 goto done;
257
258 *maxw = fmt2.fmt.pix.width;
259 *maxh = fmt2.fmt.pix.height;
260
261 done:
262 return 0;
263 }
264
265 /* ----------------------------------------------------------------- */
266
267 static noinline long v4l1_compat_get_capabilities(
268 struct video_capability *cap,
269 struct file *file,
270 v4l2_kioctl drv)
271 {
272 long err;
273 struct v4l2_framebuffer fbuf;
274 struct v4l2_capability *cap2;
275
276 cap2 = kzalloc(sizeof(*cap2), GFP_KERNEL);
277 if (!cap2) {
278 err = -ENOMEM;
279 return err;
280 }
281 memset(cap, 0, sizeof(*cap));
282 memset(&fbuf, 0, sizeof(fbuf));
283
284 err = drv(file, VIDIOC_QUERYCAP, cap2);
285 if (err < 0) {
286 dprintk("VIDIOCGCAP / VIDIOC_QUERYCAP: %ld\n", err);
287 goto done;
288 }
289 if (cap2->capabilities & V4L2_CAP_VIDEO_OVERLAY) {
290 err = drv(file, VIDIOC_G_FBUF, &fbuf);
291 if (err < 0) {
292 dprintk("VIDIOCGCAP / VIDIOC_G_FBUF: %ld\n", err);
293 memset(&fbuf, 0, sizeof(fbuf));
294 }
295 err = 0;
296 }
297
298 memcpy(cap->name, cap2->card,
299 min(sizeof(cap->name), sizeof(cap2->card)));
300 cap->name[sizeof(cap->name) - 1] = 0;
301 if (cap2->capabilities & V4L2_CAP_VIDEO_CAPTURE)
302 cap->type |= VID_TYPE_CAPTURE;
303 if (cap2->capabilities & V4L2_CAP_TUNER)
304 cap->type |= VID_TYPE_TUNER;
305 if (cap2->capabilities & V4L2_CAP_VBI_CAPTURE)
306 cap->type |= VID_TYPE_TELETEXT;
307 if (cap2->capabilities & V4L2_CAP_VIDEO_OVERLAY)
308 cap->type |= VID_TYPE_OVERLAY;
309 if (fbuf.capability & V4L2_FBUF_CAP_LIST_CLIPPING)
310 cap->type |= VID_TYPE_CLIPPING;
311
312 cap->channels = count_inputs(file, drv);
313 check_size(file, drv,
314 &cap->maxwidth, &cap->maxheight);
315 cap->audios = 0; /* FIXME */
316 cap->minwidth = 48; /* FIXME */
317 cap->minheight = 32; /* FIXME */
318
319 done:
320 kfree(cap2);
321 return err;
322 }
323
324 static noinline long v4l1_compat_get_frame_buffer(
325 struct video_buffer *buffer,
326 struct file *file,
327 v4l2_kioctl drv)
328 {
329 long err;
330 struct v4l2_framebuffer fbuf;
331
332 memset(buffer, 0, sizeof(*buffer));
333 memset(&fbuf, 0, sizeof(fbuf));
334
335 err = drv(file, VIDIOC_G_FBUF, &fbuf);
336 if (err < 0) {
337 dprintk("VIDIOCGFBUF / VIDIOC_G_FBUF: %ld\n", err);
338 goto done;
339 }
340 buffer->base = fbuf.base;
341 buffer->height = fbuf.fmt.height;
342 buffer->width = fbuf.fmt.width;
343
344 switch (fbuf.fmt.pixelformat) {
345 case V4L2_PIX_FMT_RGB332:
346 buffer->depth = 8;
347 break;
348 case V4L2_PIX_FMT_RGB555:
349 buffer->depth = 15;
350 break;
351 case V4L2_PIX_FMT_RGB565:
352 buffer->depth = 16;
353 break;
354 case V4L2_PIX_FMT_BGR24:
355 buffer->depth = 24;
356 break;
357 case V4L2_PIX_FMT_BGR32:
358 buffer->depth = 32;
359 break;
360 default:
361 buffer->depth = 0;
362 }
363 if (fbuf.fmt.bytesperline) {
364 buffer->bytesperline = fbuf.fmt.bytesperline;
365 if (!buffer->depth && buffer->width)
366 buffer->depth = ((fbuf.fmt.bytesperline<<3)
367 + (buffer->width-1))
368 / buffer->width;
369 } else {
370 buffer->bytesperline =
371 (buffer->width * buffer->depth + 7) & 7;
372 buffer->bytesperline >>= 3;
373 }
374 done:
375 return err;
376 }
377
378 static noinline long v4l1_compat_set_frame_buffer(
379 struct video_buffer *buffer,
380 struct file *file,
381 v4l2_kioctl drv)
382 {
383 long err;
384 struct v4l2_framebuffer fbuf;
385
386 memset(&fbuf, 0, sizeof(fbuf));
387 fbuf.base = buffer->base;
388 fbuf.fmt.height = buffer->height;
389 fbuf.fmt.width = buffer->width;
390 switch (buffer->depth) {
391 case 8:
392 fbuf.fmt.pixelformat = V4L2_PIX_FMT_RGB332;
393 break;
394 case 15:
395 fbuf.fmt.pixelformat = V4L2_PIX_FMT_RGB555;
396 break;
397 case 16:
398 fbuf.fmt.pixelformat = V4L2_PIX_FMT_RGB565;
399 break;
400 case 24:
401 fbuf.fmt.pixelformat = V4L2_PIX_FMT_BGR24;
402 break;
403 case 32:
404 fbuf.fmt.pixelformat = V4L2_PIX_FMT_BGR32;
405 break;
406 }
407 fbuf.fmt.bytesperline = buffer->bytesperline;
408 err = drv(file, VIDIOC_S_FBUF, &fbuf);
409 if (err < 0)
410 dprintk("VIDIOCSFBUF / VIDIOC_S_FBUF: %ld\n", err);
411 return err;
412 }
413
414 static noinline long v4l1_compat_get_win_cap_dimensions(
415 struct video_window *win,
416 struct file *file,
417 v4l2_kioctl drv)
418 {
419 long err;
420 struct v4l2_format *fmt;
421
422 fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
423 if (!fmt) {
424 err = -ENOMEM;
425 return err;
426 }
427 memset(win, 0, sizeof(*win));
428
429 fmt->type = V4L2_BUF_TYPE_VIDEO_OVERLAY;
430 err = drv(file, VIDIOC_G_FMT, fmt);
431 if (err < 0)
432 dprintk("VIDIOCGWIN / VIDIOC_G_WIN: %ld\n", err);
433 if (err == 0) {
434 win->x = fmt->fmt.win.w.left;
435 win->y = fmt->fmt.win.w.top;
436 win->width = fmt->fmt.win.w.width;
437 win->height = fmt->fmt.win.w.height;
438 win->chromakey = fmt->fmt.win.chromakey;
439 win->clips = NULL;
440 win->clipcount = 0;
441 goto done;
442 }
443
444 fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
445 err = drv(file, VIDIOC_G_FMT, fmt);
446 if (err < 0) {
447 dprintk("VIDIOCGWIN / VIDIOC_G_FMT: %ld\n", err);
448 goto done;
449 }
450 win->x = 0;
451 win->y = 0;
452 win->width = fmt->fmt.pix.width;
453 win->height = fmt->fmt.pix.height;
454 win->chromakey = 0;
455 win->clips = NULL;
456 win->clipcount = 0;
457 done:
458 kfree(fmt);
459 return err;
460 }
461
462 static noinline long v4l1_compat_set_win_cap_dimensions(
463 struct video_window *win,
464 struct file *file,
465 v4l2_kioctl drv)
466 {
467 long err, err1, err2;
468 struct v4l2_format *fmt;
469
470 fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
471 if (!fmt) {
472 err = -ENOMEM;
473 return err;
474 }
475 fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
476 drv(file, VIDIOC_STREAMOFF, &fmt->type);
477 err1 = drv(file, VIDIOC_G_FMT, fmt);
478 if (err1 < 0)
479 dprintk("VIDIOCSWIN / VIDIOC_G_FMT: %ld\n", err1);
480 if (err1 == 0) {
481 fmt->fmt.pix.width = win->width;
482 fmt->fmt.pix.height = win->height;
483 fmt->fmt.pix.field = V4L2_FIELD_ANY;
484 fmt->fmt.pix.bytesperline = 0;
485 err = drv(file, VIDIOC_S_FMT, fmt);
486 if (err < 0)
487 dprintk("VIDIOCSWIN / VIDIOC_S_FMT #1: %ld\n",
488 err);
489 win->width = fmt->fmt.pix.width;
490 win->height = fmt->fmt.pix.height;
491 }
492
493 memset(fmt, 0, sizeof(*fmt));
494 fmt->type = V4L2_BUF_TYPE_VIDEO_OVERLAY;
495 fmt->fmt.win.w.left = win->x;
496 fmt->fmt.win.w.top = win->y;
497 fmt->fmt.win.w.width = win->width;
498 fmt->fmt.win.w.height = win->height;
499 fmt->fmt.win.chromakey = win->chromakey;
500 fmt->fmt.win.clips = (void __user *)win->clips;
501 fmt->fmt.win.clipcount = win->clipcount;
502 err2 = drv(file, VIDIOC_S_FMT, fmt);
503 if (err2 < 0)
504 dprintk("VIDIOCSWIN / VIDIOC_S_FMT #2: %ld\n", err2);
505
506 if (err1 != 0 && err2 != 0)
507 err = err1;
508 else
509 err = 0;
510 kfree(fmt);
511 return err;
512 }
513
514 static noinline long v4l1_compat_turn_preview_on_off(
515 int *on,
516 struct file *file,
517 v4l2_kioctl drv)
518 {
519 long err;
520 enum v4l2_buf_type captype = V4L2_BUF_TYPE_VIDEO_CAPTURE;
521
522 if (0 == *on) {
523 /* dirty hack time. But v4l1 has no STREAMOFF
524 * equivalent in the API, and this one at
525 * least comes close ... */
526 drv(file, VIDIOC_STREAMOFF, &captype);
527 }
528 err = drv(file, VIDIOC_OVERLAY, on);
529 if (err < 0)
530 dprintk("VIDIOCCAPTURE / VIDIOC_PREVIEW: %ld\n", err);
531 return err;
532 }
533
534 static noinline long v4l1_compat_get_input_info(
535 struct video_channel *chan,
536 struct file *file,
537 v4l2_kioctl drv)
538 {
539 long err;
540 struct v4l2_input input2;
541 v4l2_std_id sid;
542
543 memset(&input2, 0, sizeof(input2));
544 input2.index = chan->channel;
545 err = drv(file, VIDIOC_ENUMINPUT, &input2);
546 if (err < 0) {
547 dprintk("VIDIOCGCHAN / VIDIOC_ENUMINPUT: "
548 "channel=%d err=%ld\n", chan->channel, err);
549 goto done;
550 }
551 chan->channel = input2.index;
552 memcpy(chan->name, input2.name,
553 min(sizeof(chan->name), sizeof(input2.name)));
554 chan->name[sizeof(chan->name) - 1] = 0;
555 chan->tuners = (input2.type == V4L2_INPUT_TYPE_TUNER) ? 1 : 0;
556 chan->flags = (chan->tuners) ? VIDEO_VC_TUNER : 0;
557 switch (input2.type) {
558 case V4L2_INPUT_TYPE_TUNER:
559 chan->type = VIDEO_TYPE_TV;
560 break;
561 default:
562 case V4L2_INPUT_TYPE_CAMERA:
563 chan->type = VIDEO_TYPE_CAMERA;
564 break;
565 }
566 chan->norm = 0;
567 /* Note: G_STD might not be present for radio receivers,
568 * so we should ignore any errors. */
569 if (drv(file, VIDIOC_G_STD, &sid) == 0) {
570 if (sid & V4L2_STD_PAL)
571 chan->norm = VIDEO_MODE_PAL;
572 if (sid & V4L2_STD_NTSC)
573 chan->norm = VIDEO_MODE_NTSC;
574 if (sid & V4L2_STD_SECAM)
575 chan->norm = VIDEO_MODE_SECAM;
576 if (sid == V4L2_STD_ALL)
577 chan->norm = VIDEO_MODE_AUTO;
578 }
579 done:
580 return err;
581 }
582
583 static noinline long v4l1_compat_set_input(
584 struct video_channel *chan,
585 struct file *file,
586 v4l2_kioctl drv)
587 {
588 long err;
589 v4l2_std_id sid = 0;
590
591 err = drv(file, VIDIOC_S_INPUT, &chan->channel);
592 if (err < 0)
593 dprintk("VIDIOCSCHAN / VIDIOC_S_INPUT: %ld\n", err);
594 switch (chan->norm) {
595 case VIDEO_MODE_PAL:
596 sid = V4L2_STD_PAL;
597 break;
598 case VIDEO_MODE_NTSC:
599 sid = V4L2_STD_NTSC;
600 break;
601 case VIDEO_MODE_SECAM:
602 sid = V4L2_STD_SECAM;
603 break;
604 case VIDEO_MODE_AUTO:
605 sid = V4L2_STD_ALL;
606 break;
607 }
608 if (0 != sid) {
609 err = drv(file, VIDIOC_S_STD, &sid);
610 if (err < 0)
611 dprintk("VIDIOCSCHAN / VIDIOC_S_STD: %ld\n", err);
612 }
613 return err;
614 }
615
616 static noinline long v4l1_compat_get_picture(
617 struct video_picture *pict,
618 struct file *file,
619 v4l2_kioctl drv)
620 {
621 long err;
622 struct v4l2_format *fmt;
623
624 fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
625 if (!fmt) {
626 err = -ENOMEM;
627 return err;
628 }
629
630 pict->brightness = get_v4l_control(file,
631 V4L2_CID_BRIGHTNESS, drv);
632 pict->hue = get_v4l_control(file,
633 V4L2_CID_HUE, drv);
634 pict->contrast = get_v4l_control(file,
635 V4L2_CID_CONTRAST, drv);
636 pict->colour = get_v4l_control(file,
637 V4L2_CID_SATURATION, drv);
638 pict->whiteness = get_v4l_control(file,
639 V4L2_CID_WHITENESS, drv);
640
641 fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
642 err = drv(file, VIDIOC_G_FMT, fmt);
643 if (err < 0) {
644 dprintk("VIDIOCGPICT / VIDIOC_G_FMT: %ld\n", err);
645 goto done;
646 }
647
648 pict->depth = ((fmt->fmt.pix.bytesperline << 3)
649 + (fmt->fmt.pix.width - 1))
650 / fmt->fmt.pix.width;
651 pict->palette = pixelformat_to_palette(
652 fmt->fmt.pix.pixelformat);
653 done:
654 kfree(fmt);
655 return err;
656 }
657
658 static noinline long v4l1_compat_set_picture(
659 struct video_picture *pict,
660 struct file *file,
661 v4l2_kioctl drv)
662 {
663 long err;
664 struct v4l2_framebuffer fbuf;
665 int mem_err = 0, ovl_err = 0;
666 struct v4l2_format *fmt;
667
668 fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
669 if (!fmt) {
670 err = -ENOMEM;
671 return err;
672 }
673 memset(&fbuf, 0, sizeof(fbuf));
674
675 set_v4l_control(file,
676 V4L2_CID_BRIGHTNESS, pict->brightness, drv);
677 set_v4l_control(file,
678 V4L2_CID_HUE, pict->hue, drv);
679 set_v4l_control(file,
680 V4L2_CID_CONTRAST, pict->contrast, drv);
681 set_v4l_control(file,
682 V4L2_CID_SATURATION, pict->colour, drv);
683 set_v4l_control(file,
684 V4L2_CID_WHITENESS, pict->whiteness, drv);
685 /*
686 * V4L1 uses this ioctl to set both memory capture and overlay
687 * pixel format, while V4L2 has two different ioctls for this.
688 * Some cards may not support one or the other, and may support
689 * different pixel formats for memory vs overlay.
690 */
691
692 fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
693 err = drv(file, VIDIOC_G_FMT, fmt);
694 /* If VIDIOC_G_FMT failed, then the driver likely doesn't
695 support memory capture. Trying to set the memory capture
696 parameters would be pointless. */
697 if (err < 0) {
698 dprintk("VIDIOCSPICT / VIDIOC_G_FMT: %ld\n", err);
699 mem_err = -1000; /* didn't even try */
700 } else if (fmt->fmt.pix.pixelformat !=
701 palette_to_pixelformat(pict->palette)) {
702 fmt->fmt.pix.pixelformat = palette_to_pixelformat(
703 pict->palette);
704 mem_err = drv(file, VIDIOC_S_FMT, fmt);
705 if (mem_err < 0)
706 dprintk("VIDIOCSPICT / VIDIOC_S_FMT: %d\n",
707 mem_err);
708 }
709
710 err = drv(file, VIDIOC_G_FBUF, &fbuf);
711 /* If VIDIOC_G_FBUF failed, then the driver likely doesn't
712 support overlay. Trying to set the overlay parameters
713 would be quite pointless. */
714 if (err < 0) {
715 dprintk("VIDIOCSPICT / VIDIOC_G_FBUF: %ld\n", err);
716 ovl_err = -1000; /* didn't even try */
717 } else if (fbuf.fmt.pixelformat !=
718 palette_to_pixelformat(pict->palette)) {
719 fbuf.fmt.pixelformat = palette_to_pixelformat(
720 pict->palette);
721 ovl_err = drv(file, VIDIOC_S_FBUF, &fbuf);
722 if (ovl_err < 0)
723 dprintk("VIDIOCSPICT / VIDIOC_S_FBUF: %d\n",
724 ovl_err);
725 }
726 if (ovl_err < 0 && mem_err < 0) {
727 /* ioctl failed, couldn't set either parameter */
728 if (mem_err != -1000)
729 err = mem_err;
730 else if (ovl_err == -EPERM)
731 err = 0;
732 else
733 err = ovl_err;
734 } else
735 err = 0;
736 kfree(fmt);
737 return err;
738 }
739
740 static noinline long v4l1_compat_get_tuner(
741 struct video_tuner *tun,
742 struct file *file,
743 v4l2_kioctl drv)
744 {
745 long err;
746 int i;
747 struct v4l2_tuner tun2;
748 struct v4l2_standard std2;
749 v4l2_std_id sid;
750
751 memset(&tun2, 0, sizeof(tun2));
752 err = drv(file, VIDIOC_G_TUNER, &tun2);
753 if (err < 0) {
754 dprintk("VIDIOCGTUNER / VIDIOC_G_TUNER: %ld\n", err);
755 goto done;
756 }
757 memcpy(tun->name, tun2.name,
758 min(sizeof(tun->name), sizeof(tun2.name)));
759 tun->name[sizeof(tun->name) - 1] = 0;
760 tun->rangelow = tun2.rangelow;
761 tun->rangehigh = tun2.rangehigh;
762 tun->flags = 0;
763 tun->mode = VIDEO_MODE_AUTO;
764
765 for (i = 0; i < 64; i++) {
766 memset(&std2, 0, sizeof(std2));
767 std2.index = i;
768 if (0 != drv(file, VIDIOC_ENUMSTD, &std2))
769 break;
770 if (std2.id & V4L2_STD_PAL)
771 tun->flags |= VIDEO_TUNER_PAL;
772 if (std2.id & V4L2_STD_NTSC)
773 tun->flags |= VIDEO_TUNER_NTSC;
774 if (std2.id & V4L2_STD_SECAM)
775 tun->flags |= VIDEO_TUNER_SECAM;
776 }
777
778 /* Note: G_STD might not be present for radio receivers,
779 * so we should ignore any errors. */
780 if (drv(file, VIDIOC_G_STD, &sid) == 0) {
781 if (sid & V4L2_STD_PAL)
782 tun->mode = VIDEO_MODE_PAL;
783 if (sid & V4L2_STD_NTSC)
784 tun->mode = VIDEO_MODE_NTSC;
785 if (sid & V4L2_STD_SECAM)
786 tun->mode = VIDEO_MODE_SECAM;
787 }
788
789 if (tun2.capability & V4L2_TUNER_CAP_LOW)
790 tun->flags |= VIDEO_TUNER_LOW;
791 if (tun2.rxsubchans & V4L2_TUNER_SUB_STEREO)
792 tun->flags |= VIDEO_TUNER_STEREO_ON;
793 tun->signal = tun2.signal;
794 done:
795 return err;
796 }
797
798 static noinline long v4l1_compat_select_tuner(
799 struct video_tuner *tun,
800 struct file *file,
801 v4l2_kioctl drv)
802 {
803 long err;
804 struct v4l2_tuner t;/*84 bytes on x86_64*/
805 memset(&t, 0, sizeof(t));
806
807 t.index = tun->tuner;
808
809 err = drv(file, VIDIOC_S_TUNER, &t);
810 if (err < 0)
811 dprintk("VIDIOCSTUNER / VIDIOC_S_TUNER: %ld\n", err);
812 return err;
813 }
814
815 static noinline long v4l1_compat_get_frequency(
816 unsigned long *freq,
817 struct file *file,
818 v4l2_kioctl drv)
819 {
820 long err;
821 struct v4l2_frequency freq2;
822 memset(&freq2, 0, sizeof(freq2));
823
824 freq2.tuner = 0;
825 err = drv(file, VIDIOC_G_FREQUENCY, &freq2);
826 if (err < 0)
827 dprintk("VIDIOCGFREQ / VIDIOC_G_FREQUENCY: %ld\n", err);
828 if (0 == err)
829 *freq = freq2.frequency;
830 return err;
831 }
832
833 static noinline long v4l1_compat_set_frequency(
834 unsigned long *freq,
835 struct file *file,
836 v4l2_kioctl drv)
837 {
838 long err;
839 struct v4l2_frequency freq2;
840 memset(&freq2, 0, sizeof(freq2));
841
842 drv(file, VIDIOC_G_FREQUENCY, &freq2);
843 freq2.frequency = *freq;
844 err = drv(file, VIDIOC_S_FREQUENCY, &freq2);
845 if (err < 0)
846 dprintk("VIDIOCSFREQ / VIDIOC_S_FREQUENCY: %ld\n", err);
847 return err;
848 }
849
850 static noinline long v4l1_compat_get_audio(
851 struct video_audio *aud,
852 struct file *file,
853 v4l2_kioctl drv)
854 {
855 long err;
856 int i;
857 struct v4l2_queryctrl qctrl2;
858 struct v4l2_audio aud2;
859 struct v4l2_tuner tun2;
860 memset(&aud2, 0, sizeof(aud2));
861
862 err = drv(file, VIDIOC_G_AUDIO, &aud2);
863 if (err < 0) {
864 dprintk("VIDIOCGAUDIO / VIDIOC_G_AUDIO: %ld\n", err);
865 goto done;
866 }
867 memcpy(aud->name, aud2.name,
868 min(sizeof(aud->name), sizeof(aud2.name)));
869 aud->name[sizeof(aud->name) - 1] = 0;
870 aud->audio = aud2.index;
871 aud->flags = 0;
872 i = get_v4l_control(file, V4L2_CID_AUDIO_VOLUME, drv);
873 if (i >= 0) {
874 aud->volume = i;
875 aud->flags |= VIDEO_AUDIO_VOLUME;
876 }
877 i = get_v4l_control(file, V4L2_CID_AUDIO_BASS, drv);
878 if (i >= 0) {
879 aud->bass = i;
880 aud->flags |= VIDEO_AUDIO_BASS;
881 }
882 i = get_v4l_control(file, V4L2_CID_AUDIO_TREBLE, drv);
883 if (i >= 0) {
884 aud->treble = i;
885 aud->flags |= VIDEO_AUDIO_TREBLE;
886 }
887 i = get_v4l_control(file, V4L2_CID_AUDIO_BALANCE, drv);
888 if (i >= 0) {
889 aud->balance = i;
890 aud->flags |= VIDEO_AUDIO_BALANCE;
891 }
892 i = get_v4l_control(file, V4L2_CID_AUDIO_MUTE, drv);
893 if (i >= 0) {
894 if (i)
895 aud->flags |= VIDEO_AUDIO_MUTE;
896 aud->flags |= VIDEO_AUDIO_MUTABLE;
897 }
898 aud->step = 1;
899 qctrl2.id = V4L2_CID_AUDIO_VOLUME;
900 if (drv(file, VIDIOC_QUERYCTRL, &qctrl2) == 0 &&
901 !(qctrl2.flags & V4L2_CTRL_FLAG_DISABLED))
902 aud->step = qctrl2.step;
903 aud->mode = 0;
904
905 memset(&tun2, 0, sizeof(tun2));
906 err = drv(file, VIDIOC_G_TUNER, &tun2);
907 if (err < 0) {
908 dprintk("VIDIOCGAUDIO / VIDIOC_G_TUNER: %ld\n", err);
909 err = 0;
910 goto done;
911 }
912
913 if (tun2.rxsubchans & V4L2_TUNER_SUB_LANG2)
914 aud->mode = VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
915 else if (tun2.rxsubchans & V4L2_TUNER_SUB_STEREO)
916 aud->mode = VIDEO_SOUND_STEREO;
917 else if (tun2.rxsubchans & V4L2_TUNER_SUB_MONO)
918 aud->mode = VIDEO_SOUND_MONO;
919 done:
920 return err;
921 }
922
923 static noinline long v4l1_compat_set_audio(
924 struct video_audio *aud,
925 struct file *file,
926 v4l2_kioctl drv)
927 {
928 long err;
929 struct v4l2_audio aud2;
930 struct v4l2_tuner tun2;
931
932 memset(&aud2, 0, sizeof(aud2));
933 memset(&tun2, 0, sizeof(tun2));
934
935 aud2.index = aud->audio;
936 err = drv(file, VIDIOC_S_AUDIO, &aud2);
937 if (err < 0) {
938 dprintk("VIDIOCSAUDIO / VIDIOC_S_AUDIO: %ld\n", err);
939 goto done;
940 }
941
942 set_v4l_control(file, V4L2_CID_AUDIO_VOLUME,
943 aud->volume, drv);
944 set_v4l_control(file, V4L2_CID_AUDIO_BASS,
945 aud->bass, drv);
946 set_v4l_control(file, V4L2_CID_AUDIO_TREBLE,
947 aud->treble, drv);
948 set_v4l_control(file, V4L2_CID_AUDIO_BALANCE,
949 aud->balance, drv);
950 set_v4l_control(file, V4L2_CID_AUDIO_MUTE,
951 !!(aud->flags & VIDEO_AUDIO_MUTE), drv);
952
953 err = drv(file, VIDIOC_G_TUNER, &tun2);
954 if (err < 0)
955 dprintk("VIDIOCSAUDIO / VIDIOC_G_TUNER: %ld\n", err);
956 if (err == 0) {
957 switch (aud->mode) {
958 default:
959 case VIDEO_SOUND_MONO:
960 case VIDEO_SOUND_LANG1:
961 tun2.audmode = V4L2_TUNER_MODE_MONO;
962 break;
963 case VIDEO_SOUND_STEREO:
964 tun2.audmode = V4L2_TUNER_MODE_STEREO;
965 break;
966 case VIDEO_SOUND_LANG2:
967 tun2.audmode = V4L2_TUNER_MODE_LANG2;
968 break;
969 }
970 err = drv(file, VIDIOC_S_TUNER, &tun2);
971 if (err < 0)
972 dprintk("VIDIOCSAUDIO / VIDIOC_S_TUNER: %ld\n", err);
973 }
974 err = 0;
975 done:
976 return err;
977 }
978
979 static noinline long v4l1_compat_capture_frame(
980 struct video_mmap *mm,
981 struct file *file,
982 v4l2_kioctl drv)
983 {
984 long err;
985 enum v4l2_buf_type captype = V4L2_BUF_TYPE_VIDEO_CAPTURE;
986 struct v4l2_buffer buf;
987 struct v4l2_format *fmt;
988
989 fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
990 if (!fmt) {
991 err = -ENOMEM;
992 return err;
993 }
994 memset(&buf, 0, sizeof(buf));
995
996 fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
997 err = drv(file, VIDIOC_G_FMT, fmt);
998 if (err < 0) {
999 dprintk("VIDIOCMCAPTURE / VIDIOC_G_FMT: %ld\n", err);
1000 goto done;
1001 }
1002 if (mm->width != fmt->fmt.pix.width ||
1003 mm->height != fmt->fmt.pix.height ||
1004 palette_to_pixelformat(mm->format) !=
1005 fmt->fmt.pix.pixelformat) {
1006 /* New capture format... */
1007 fmt->fmt.pix.width = mm->width;
1008 fmt->fmt.pix.height = mm->height;
1009 fmt->fmt.pix.pixelformat =
1010 palette_to_pixelformat(mm->format);
1011 fmt->fmt.pix.field = V4L2_FIELD_ANY;
1012 fmt->fmt.pix.bytesperline = 0;
1013 err = drv(file, VIDIOC_S_FMT, fmt);
1014 if (err < 0) {
1015 dprintk("VIDIOCMCAPTURE / VIDIOC_S_FMT: %ld\n", err);
1016 goto done;
1017 }
1018 }
1019 buf.index = mm->frame;
1020 buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1021 err = drv(file, VIDIOC_QUERYBUF, &buf);
1022 if (err < 0) {
1023 dprintk("VIDIOCMCAPTURE / VIDIOC_QUERYBUF: %ld\n", err);
1024 goto done;
1025 }
1026 err = drv(file, VIDIOC_QBUF, &buf);
1027 if (err < 0) {
1028 dprintk("VIDIOCMCAPTURE / VIDIOC_QBUF: %ld\n", err);
1029 goto done;
1030 }
1031 err = drv(file, VIDIOC_STREAMON, &captype);
1032 if (err < 0)
1033 dprintk("VIDIOCMCAPTURE / VIDIOC_STREAMON: %ld\n", err);
1034 done:
1035 kfree(fmt);
1036 return err;
1037 }
1038
1039 static noinline long v4l1_compat_sync(
1040 int *i,
1041 struct file *file,
1042 v4l2_kioctl drv)
1043 {
1044 long err;
1045 enum v4l2_buf_type captype = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1046 struct v4l2_buffer buf;
1047 struct poll_wqueues *pwq;
1048
1049 memset(&buf, 0, sizeof(buf));
1050 buf.index = *i;
1051 buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1052 err = drv(file, VIDIOC_QUERYBUF, &buf);
1053 if (err < 0) {
1054 /* No such buffer */
1055 dprintk("VIDIOCSYNC / VIDIOC_QUERYBUF: %ld\n", err);
1056 goto done;
1057 }
1058 if (!(buf.flags & V4L2_BUF_FLAG_MAPPED)) {
1059 /* Buffer is not mapped */
1060 err = -EINVAL;
1061 goto done;
1062 }
1063
1064 /* make sure capture actually runs so we don't block forever */
1065 err = drv(file, VIDIOC_STREAMON, &captype);
1066 if (err < 0) {
1067 dprintk("VIDIOCSYNC / VIDIOC_STREAMON: %ld\n", err);
1068 goto done;
1069 }
1070
1071 pwq = kmalloc(sizeof(*pwq), GFP_KERNEL);
1072 /* Loop as long as the buffer is queued, but not done */
1073 while ((buf.flags & (V4L2_BUF_FLAG_QUEUED | V4L2_BUF_FLAG_DONE))
1074 == V4L2_BUF_FLAG_QUEUED) {
1075 err = poll_one(file, pwq);
1076 if (err < 0 || /* error or sleep was interrupted */
1077 err == 0) /* timeout? Shouldn't occur. */
1078 break;
1079 err = drv(file, VIDIOC_QUERYBUF, &buf);
1080 if (err < 0)
1081 dprintk("VIDIOCSYNC / VIDIOC_QUERYBUF: %ld\n", err);
1082 }
1083 kfree(pwq);
1084 if (!(buf.flags & V4L2_BUF_FLAG_DONE)) /* not done */
1085 goto done;
1086 do {
1087 err = drv(file, VIDIOC_DQBUF, &buf);
1088 if (err < 0)
1089 dprintk("VIDIOCSYNC / VIDIOC_DQBUF: %ld\n", err);
1090 } while (err == 0 && buf.index != *i);
1091 done:
1092 return err;
1093 }
1094
1095 static noinline long v4l1_compat_get_vbi_format(
1096 struct vbi_format *fmt,
1097 struct file *file,
1098 v4l2_kioctl drv)
1099 {
1100 long err;
1101 struct v4l2_format *fmt2;
1102
1103 fmt2 = kzalloc(sizeof(*fmt2), GFP_KERNEL);
1104 if (!fmt2) {
1105 err = -ENOMEM;
1106 return err;
1107 }
1108 fmt2->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1109
1110 err = drv(file, VIDIOC_G_FMT, fmt2);
1111 if (err < 0) {
1112 dprintk("VIDIOCGVBIFMT / VIDIOC_G_FMT: %ld\n", err);
1113 goto done;
1114 }
1115 if (fmt2->fmt.vbi.sample_format != V4L2_PIX_FMT_GREY) {
1116 err = -EINVAL;
1117 goto done;
1118 }
1119 memset(fmt, 0, sizeof(*fmt));
1120 fmt->samples_per_line = fmt2->fmt.vbi.samples_per_line;
1121 fmt->sampling_rate = fmt2->fmt.vbi.sampling_rate;
1122 fmt->sample_format = VIDEO_PALETTE_RAW;
1123 fmt->start[0] = fmt2->fmt.vbi.start[0];
1124 fmt->count[0] = fmt2->fmt.vbi.count[0];
1125 fmt->start[1] = fmt2->fmt.vbi.start[1];
1126 fmt->count[1] = fmt2->fmt.vbi.count[1];
1127 fmt->flags = fmt2->fmt.vbi.flags & 0x03;
1128 done:
1129 kfree(fmt2);
1130 return err;
1131 }
1132
1133 static noinline long v4l1_compat_set_vbi_format(
1134 struct vbi_format *fmt,
1135 struct file *file,
1136 v4l2_kioctl drv)
1137 {
1138 long err;
1139 struct v4l2_format *fmt2 = NULL;
1140
1141 if (VIDEO_PALETTE_RAW != fmt->sample_format) {
1142 err = -EINVAL;
1143 return err;
1144 }
1145
1146 fmt2 = kzalloc(sizeof(*fmt2), GFP_KERNEL);
1147 if (!fmt2) {
1148 err = -ENOMEM;
1149 return err;
1150 }
1151 fmt2->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1152 fmt2->fmt.vbi.samples_per_line = fmt->samples_per_line;
1153 fmt2->fmt.vbi.sampling_rate = fmt->sampling_rate;
1154 fmt2->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1155 fmt2->fmt.vbi.start[0] = fmt->start[0];
1156 fmt2->fmt.vbi.count[0] = fmt->count[0];
1157 fmt2->fmt.vbi.start[1] = fmt->start[1];
1158 fmt2->fmt.vbi.count[1] = fmt->count[1];
1159 fmt2->fmt.vbi.flags = fmt->flags;
1160 err = drv(file, VIDIOC_TRY_FMT, fmt2);
1161 if (err < 0) {
1162 dprintk("VIDIOCSVBIFMT / VIDIOC_TRY_FMT: %ld\n", err);
1163 goto done;
1164 }
1165
1166 if (fmt2->fmt.vbi.samples_per_line != fmt->samples_per_line ||
1167 fmt2->fmt.vbi.sampling_rate != fmt->sampling_rate ||
1168 fmt2->fmt.vbi.sample_format != V4L2_PIX_FMT_GREY ||
1169 fmt2->fmt.vbi.start[0] != fmt->start[0] ||
1170 fmt2->fmt.vbi.count[0] != fmt->count[0] ||
1171 fmt2->fmt.vbi.start[1] != fmt->start[1] ||
1172 fmt2->fmt.vbi.count[1] != fmt->count[1] ||
1173 fmt2->fmt.vbi.flags != fmt->flags) {
1174 err = -EINVAL;
1175 goto done;
1176 }
1177 err = drv(file, VIDIOC_S_FMT, fmt2);
1178 if (err < 0)
1179 dprintk("VIDIOCSVBIFMT / VIDIOC_S_FMT: %ld\n", err);
1180 done:
1181 kfree(fmt2);
1182 return err;
1183 }
1184
1185 /*
1186 * This function is exported.
1187 */
1188 long
1189 v4l_compat_translate_ioctl(struct file *file,
1190 int cmd,
1191 void *arg,
1192 v4l2_kioctl drv)
1193 {
1194 long err;
1195
1196 switch (cmd) {
1197 case VIDIOCGCAP: /* capability */
1198 err = v4l1_compat_get_capabilities(arg, file, drv);
1199 break;
1200 case VIDIOCGFBUF: /* get frame buffer */
1201 err = v4l1_compat_get_frame_buffer(arg, file, drv);
1202 break;
1203 case VIDIOCSFBUF: /* set frame buffer */
1204 err = v4l1_compat_set_frame_buffer(arg, file, drv);
1205 break;
1206 case VIDIOCGWIN: /* get window or capture dimensions */
1207 err = v4l1_compat_get_win_cap_dimensions(arg, file, drv);
1208 break;
1209 case VIDIOCSWIN: /* set window and/or capture dimensions */
1210 err = v4l1_compat_set_win_cap_dimensions(arg, file, drv);
1211 break;
1212 case VIDIOCCAPTURE: /* turn on/off preview */
1213 err = v4l1_compat_turn_preview_on_off(arg, file, drv);
1214 break;
1215 case VIDIOCGCHAN: /* get input information */
1216 err = v4l1_compat_get_input_info(arg, file, drv);
1217 break;
1218 case VIDIOCSCHAN: /* set input */
1219 err = v4l1_compat_set_input(arg, file, drv);
1220 break;
1221 case VIDIOCGPICT: /* get tone controls & partial capture format */
1222 err = v4l1_compat_get_picture(arg, file, drv);
1223 break;
1224 case VIDIOCSPICT: /* set tone controls & partial capture format */
1225 err = v4l1_compat_set_picture(arg, file, drv);
1226 break;
1227 case VIDIOCGTUNER: /* get tuner information */
1228 err = v4l1_compat_get_tuner(arg, file, drv);
1229 break;
1230 case VIDIOCSTUNER: /* select a tuner input */
1231 err = v4l1_compat_select_tuner(arg, file, drv);
1232 break;
1233 case VIDIOCGFREQ: /* get frequency */
1234 err = v4l1_compat_get_frequency(arg, file, drv);
1235 break;
1236 case VIDIOCSFREQ: /* set frequency */
1237 err = v4l1_compat_set_frequency(arg, file, drv);
1238 break;
1239 case VIDIOCGAUDIO: /* get audio properties/controls */
1240 err = v4l1_compat_get_audio(arg, file, drv);
1241 break;
1242 case VIDIOCSAUDIO: /* set audio controls */
1243 err = v4l1_compat_set_audio(arg, file, drv);
1244 break;
1245 case VIDIOCMCAPTURE: /* capture a frame */
1246 err = v4l1_compat_capture_frame(arg, file, drv);
1247 break;
1248 case VIDIOCSYNC: /* wait for a frame */
1249 err = v4l1_compat_sync(arg, file, drv);
1250 break;
1251 case VIDIOCGVBIFMT: /* query VBI data capture format */
1252 err = v4l1_compat_get_vbi_format(arg, file, drv);
1253 break;
1254 case VIDIOCSVBIFMT:
1255 err = v4l1_compat_set_vbi_format(arg, file, drv);
1256 break;
1257 default:
1258 err = -ENOIOCTLCMD;
1259 break;
1260 }
1261
1262 return err;
1263 }
1264 EXPORT_SYMBOL(v4l_compat_translate_ioctl);
1265
1266 /*
1267 * Local variables:
1268 * c-basic-offset: 8
1269 * End:
1270 */