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poll: allow f_op->poll to sleep
[linux-2.6/btrfs-unstable.git] / drivers / media / video / v4l1-compat.c
blobb617bf05e2d7ce39f1a34a5b0bdd1b704e2188a5
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 }
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 }
605 if (0 != sid) {
606 err = drv(file, VIDIOC_S_STD, &sid);
607 if (err < 0)
608 dprintk("VIDIOCSCHAN / VIDIOC_S_STD: %ld\n", err);
609 }
610 return err;
611 }
612
613 static noinline long v4l1_compat_get_picture(
614 struct video_picture *pict,
615 struct file *file,
616 v4l2_kioctl drv)
617 {
618 long err;
619 struct v4l2_format *fmt;
620
621 fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
622 if (!fmt) {
623 err = -ENOMEM;
624 return err;
625 }
626
627 pict->brightness = get_v4l_control(file,
628 V4L2_CID_BRIGHTNESS, drv);
629 pict->hue = get_v4l_control(file,
630 V4L2_CID_HUE, drv);
631 pict->contrast = get_v4l_control(file,
632 V4L2_CID_CONTRAST, drv);
633 pict->colour = get_v4l_control(file,
634 V4L2_CID_SATURATION, drv);
635 pict->whiteness = get_v4l_control(file,
636 V4L2_CID_WHITENESS, drv);
637
638 fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
639 err = drv(file, VIDIOC_G_FMT, fmt);
640 if (err < 0) {
641 dprintk("VIDIOCGPICT / VIDIOC_G_FMT: %ld\n", err);
642 goto done;
643 }
644
645 pict->depth = ((fmt->fmt.pix.bytesperline << 3)
646 + (fmt->fmt.pix.width - 1))
647 / fmt->fmt.pix.width;
648 pict->palette = pixelformat_to_palette(
649 fmt->fmt.pix.pixelformat);
650 done:
651 kfree(fmt);
652 return err;
653 }
654
655 static noinline long v4l1_compat_set_picture(
656 struct video_picture *pict,
657 struct file *file,
658 v4l2_kioctl drv)
659 {
660 long err;
661 struct v4l2_framebuffer fbuf;
662 int mem_err = 0, ovl_err = 0;
663 struct v4l2_format *fmt;
664
665 fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
666 if (!fmt) {
667 err = -ENOMEM;
668 return err;
669 }
670 memset(&fbuf, 0, sizeof(fbuf));
671
672 set_v4l_control(file,
673 V4L2_CID_BRIGHTNESS, pict->brightness, drv);
674 set_v4l_control(file,
675 V4L2_CID_HUE, pict->hue, drv);
676 set_v4l_control(file,
677 V4L2_CID_CONTRAST, pict->contrast, drv);
678 set_v4l_control(file,
679 V4L2_CID_SATURATION, pict->colour, drv);
680 set_v4l_control(file,
681 V4L2_CID_WHITENESS, pict->whiteness, drv);
682 /*
683 * V4L1 uses this ioctl to set both memory capture and overlay
684 * pixel format, while V4L2 has two different ioctls for this.
685 * Some cards may not support one or the other, and may support
686 * different pixel formats for memory vs overlay.
687 */
688
689 fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
690 err = drv(file, VIDIOC_G_FMT, fmt);
691 /* If VIDIOC_G_FMT failed, then the driver likely doesn't
692 support memory capture. Trying to set the memory capture
693 parameters would be pointless. */
694 if (err < 0) {
695 dprintk("VIDIOCSPICT / VIDIOC_G_FMT: %ld\n", err);
696 mem_err = -1000; /* didn't even try */
697 } else if (fmt->fmt.pix.pixelformat !=
698 palette_to_pixelformat(pict->palette)) {
699 fmt->fmt.pix.pixelformat = palette_to_pixelformat(
700 pict->palette);
701 mem_err = drv(file, VIDIOC_S_FMT, fmt);
702 if (mem_err < 0)
703 dprintk("VIDIOCSPICT / VIDIOC_S_FMT: %d\n",
704 mem_err);
705 }
706
707 err = drv(file, VIDIOC_G_FBUF, &fbuf);
708 /* If VIDIOC_G_FBUF failed, then the driver likely doesn't
709 support overlay. Trying to set the overlay parameters
710 would be quite pointless. */
711 if (err < 0) {
712 dprintk("VIDIOCSPICT / VIDIOC_G_FBUF: %ld\n", err);
713 ovl_err = -1000; /* didn't even try */
714 } else if (fbuf.fmt.pixelformat !=
715 palette_to_pixelformat(pict->palette)) {
716 fbuf.fmt.pixelformat = palette_to_pixelformat(
717 pict->palette);
718 ovl_err = drv(file, VIDIOC_S_FBUF, &fbuf);
719 if (ovl_err < 0)
720 dprintk("VIDIOCSPICT / VIDIOC_S_FBUF: %d\n",
721 ovl_err);
722 }
723 if (ovl_err < 0 && mem_err < 0) {
724 /* ioctl failed, couldn't set either parameter */
725 if (mem_err != -1000)
726 err = mem_err;
727 else if (ovl_err == -EPERM)
728 err = 0;
729 else
730 err = ovl_err;
731 } else
732 err = 0;
733 kfree(fmt);
734 return err;
735 }
736
737 static noinline long v4l1_compat_get_tuner(
738 struct video_tuner *tun,
739 struct file *file,
740 v4l2_kioctl drv)
741 {
742 long err;
743 int i;
744 struct v4l2_tuner tun2;
745 struct v4l2_standard std2;
746 v4l2_std_id sid;
747
748 memset(&tun2, 0, sizeof(tun2));
749 err = drv(file, VIDIOC_G_TUNER, &tun2);
750 if (err < 0) {
751 dprintk("VIDIOCGTUNER / VIDIOC_G_TUNER: %ld\n", err);
752 goto done;
753 }
754 memcpy(tun->name, tun2.name,
755 min(sizeof(tun->name), sizeof(tun2.name)));
756 tun->name[sizeof(tun->name) - 1] = 0;
757 tun->rangelow = tun2.rangelow;
758 tun->rangehigh = tun2.rangehigh;
759 tun->flags = 0;
760 tun->mode = VIDEO_MODE_AUTO;
761
762 for (i = 0; i < 64; i++) {
763 memset(&std2, 0, sizeof(std2));
764 std2.index = i;
765 if (0 != drv(file, VIDIOC_ENUMSTD, &std2))
766 break;
767 if (std2.id & V4L2_STD_PAL)
768 tun->flags |= VIDEO_TUNER_PAL;
769 if (std2.id & V4L2_STD_NTSC)
770 tun->flags |= VIDEO_TUNER_NTSC;
771 if (std2.id & V4L2_STD_SECAM)
772 tun->flags |= VIDEO_TUNER_SECAM;
773 }
774
775 err = drv(file, VIDIOC_G_STD, &sid);
776 if (err < 0)
777 dprintk("VIDIOCGTUNER / VIDIOC_G_STD: %ld\n", err);
778 if (err == 0) {
779 if (sid & V4L2_STD_PAL)
780 tun->mode = VIDEO_MODE_PAL;
781 if (sid & V4L2_STD_NTSC)
782 tun->mode = VIDEO_MODE_NTSC;
783 if (sid & V4L2_STD_SECAM)
784 tun->mode = VIDEO_MODE_SECAM;
785 }
786
787 if (tun2.capability & V4L2_TUNER_CAP_LOW)
788 tun->flags |= VIDEO_TUNER_LOW;
789 if (tun2.rxsubchans & V4L2_TUNER_SUB_STEREO)
790 tun->flags |= VIDEO_TUNER_STEREO_ON;
791 tun->signal = tun2.signal;
792 done:
793 return err;
794 }
795
796 static noinline long v4l1_compat_select_tuner(
797 struct video_tuner *tun,
798 struct file *file,
799 v4l2_kioctl drv)
800 {
801 long err;
802 struct v4l2_tuner t;/*84 bytes on x86_64*/
803 memset(&t, 0, sizeof(t));
804
805 t.index = tun->tuner;
806
807 err = drv(file, VIDIOC_S_INPUT, &t);
808 if (err < 0)
809 dprintk("VIDIOCSTUNER / VIDIOC_S_INPUT: %ld\n", err);
810 return err;
811 }
812
813 static noinline long v4l1_compat_get_frequency(
814 unsigned long *freq,
815 struct file *file,
816 v4l2_kioctl drv)
817 {
818 long err;
819 struct v4l2_frequency freq2;
820 memset(&freq2, 0, sizeof(freq2));
821
822 freq2.tuner = 0;
823 err = drv(file, VIDIOC_G_FREQUENCY, &freq2);
824 if (err < 0)
825 dprintk("VIDIOCGFREQ / VIDIOC_G_FREQUENCY: %ld\n", err);
826 if (0 == err)
827 *freq = freq2.frequency;
828 return err;
829 }
830
831 static noinline long v4l1_compat_set_frequency(
832 unsigned long *freq,
833 struct file *file,
834 v4l2_kioctl drv)
835 {
836 long err;
837 struct v4l2_frequency freq2;
838 memset(&freq2, 0, sizeof(freq2));
839
840 drv(file, VIDIOC_G_FREQUENCY, &freq2);
841 freq2.frequency = *freq;
842 err = drv(file, VIDIOC_S_FREQUENCY, &freq2);
843 if (err < 0)
844 dprintk("VIDIOCSFREQ / VIDIOC_S_FREQUENCY: %ld\n", err);
845 return err;
846 }
847
848 static noinline long v4l1_compat_get_audio(
849 struct video_audio *aud,
850 struct file *file,
851 v4l2_kioctl drv)
852 {
853 long err;
854 int i;
855 struct v4l2_queryctrl qctrl2;
856 struct v4l2_audio aud2;
857 struct v4l2_tuner tun2;
858 memset(&aud2, 0, sizeof(aud2));
859
860 err = drv(file, VIDIOC_G_AUDIO, &aud2);
861 if (err < 0) {
862 dprintk("VIDIOCGAUDIO / VIDIOC_G_AUDIO: %ld\n", err);
863 goto done;
864 }
865 memcpy(aud->name, aud2.name,
866 min(sizeof(aud->name), sizeof(aud2.name)));
867 aud->name[sizeof(aud->name) - 1] = 0;
868 aud->audio = aud2.index;
869 aud->flags = 0;
870 i = get_v4l_control(file, V4L2_CID_AUDIO_VOLUME, drv);
871 if (i >= 0) {
872 aud->volume = i;
873 aud->flags |= VIDEO_AUDIO_VOLUME;
874 }
875 i = get_v4l_control(file, V4L2_CID_AUDIO_BASS, drv);
876 if (i >= 0) {
877 aud->bass = i;
878 aud->flags |= VIDEO_AUDIO_BASS;
879 }
880 i = get_v4l_control(file, V4L2_CID_AUDIO_TREBLE, drv);
881 if (i >= 0) {
882 aud->treble = i;
883 aud->flags |= VIDEO_AUDIO_TREBLE;
884 }
885 i = get_v4l_control(file, V4L2_CID_AUDIO_BALANCE, drv);
886 if (i >= 0) {
887 aud->balance = i;
888 aud->flags |= VIDEO_AUDIO_BALANCE;
889 }
890 i = get_v4l_control(file, V4L2_CID_AUDIO_MUTE, drv);
891 if (i >= 0) {
892 if (i)
893 aud->flags |= VIDEO_AUDIO_MUTE;
894 aud->flags |= VIDEO_AUDIO_MUTABLE;
895 }
896 aud->step = 1;
897 qctrl2.id = V4L2_CID_AUDIO_VOLUME;
898 if (drv(file, VIDIOC_QUERYCTRL, &qctrl2) == 0 &&
899 !(qctrl2.flags & V4L2_CTRL_FLAG_DISABLED))
900 aud->step = qctrl2.step;
901 aud->mode = 0;
902
903 memset(&tun2, 0, sizeof(tun2));
904 err = drv(file, VIDIOC_G_TUNER, &tun2);
905 if (err < 0) {
906 dprintk("VIDIOCGAUDIO / VIDIOC_G_TUNER: %ld\n", err);
907 err = 0;
908 goto done;
909 }
910
911 if (tun2.rxsubchans & V4L2_TUNER_SUB_LANG2)
912 aud->mode = VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
913 else if (tun2.rxsubchans & V4L2_TUNER_SUB_STEREO)
914 aud->mode = VIDEO_SOUND_STEREO;
915 else if (tun2.rxsubchans & V4L2_TUNER_SUB_MONO)
916 aud->mode = VIDEO_SOUND_MONO;
917 done:
918 return err;
919 }
920
921 static noinline long v4l1_compat_set_audio(
922 struct video_audio *aud,
923 struct file *file,
924 v4l2_kioctl drv)
925 {
926 long err;
927 struct v4l2_audio aud2;
928 struct v4l2_tuner tun2;
929
930 memset(&aud2, 0, sizeof(aud2));
931 memset(&tun2, 0, sizeof(tun2));
932
933 aud2.index = aud->audio;
934 err = drv(file, VIDIOC_S_AUDIO, &aud2);
935 if (err < 0) {
936 dprintk("VIDIOCSAUDIO / VIDIOC_S_AUDIO: %ld\n", err);
937 goto done;
938 }
939
940 set_v4l_control(file, V4L2_CID_AUDIO_VOLUME,
941 aud->volume, drv);
942 set_v4l_control(file, V4L2_CID_AUDIO_BASS,
943 aud->bass, drv);
944 set_v4l_control(file, V4L2_CID_AUDIO_TREBLE,
945 aud->treble, drv);
946 set_v4l_control(file, V4L2_CID_AUDIO_BALANCE,
947 aud->balance, drv);
948 set_v4l_control(file, V4L2_CID_AUDIO_MUTE,
949 !!(aud->flags & VIDEO_AUDIO_MUTE), drv);
950
951 err = drv(file, VIDIOC_G_TUNER, &tun2);
952 if (err < 0)
953 dprintk("VIDIOCSAUDIO / VIDIOC_G_TUNER: %ld\n", err);
954 if (err == 0) {
955 switch (aud->mode) {
956 default:
957 case VIDEO_SOUND_MONO:
958 case VIDEO_SOUND_LANG1:
959 tun2.audmode = V4L2_TUNER_MODE_MONO;
960 break;
961 case VIDEO_SOUND_STEREO:
962 tun2.audmode = V4L2_TUNER_MODE_STEREO;
963 break;
964 case VIDEO_SOUND_LANG2:
965 tun2.audmode = V4L2_TUNER_MODE_LANG2;
966 break;
967 }
968 err = drv(file, VIDIOC_S_TUNER, &tun2);
969 if (err < 0)
970 dprintk("VIDIOCSAUDIO / VIDIOC_S_TUNER: %ld\n", err);
971 }
972 err = 0;
973 done:
974 return err;
975 }
976
977 static noinline long v4l1_compat_capture_frame(
978 struct video_mmap *mm,
979 struct file *file,
980 v4l2_kioctl drv)
981 {
982 long err;
983 enum v4l2_buf_type captype = V4L2_BUF_TYPE_VIDEO_CAPTURE;
984 struct v4l2_buffer buf;
985 struct v4l2_format *fmt;
986
987 fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
988 if (!fmt) {
989 err = -ENOMEM;
990 return err;
991 }
992 memset(&buf, 0, sizeof(buf));
993
994 fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
995 err = drv(file, VIDIOC_G_FMT, fmt);
996 if (err < 0) {
997 dprintk("VIDIOCMCAPTURE / VIDIOC_G_FMT: %ld\n", err);
998 goto done;
999 }
1000 if (mm->width != fmt->fmt.pix.width ||
1001 mm->height != fmt->fmt.pix.height ||
1002 palette_to_pixelformat(mm->format) !=
1003 fmt->fmt.pix.pixelformat) {
1004 /* New capture format... */
1005 fmt->fmt.pix.width = mm->width;
1006 fmt->fmt.pix.height = mm->height;
1007 fmt->fmt.pix.pixelformat =
1008 palette_to_pixelformat(mm->format);
1009 fmt->fmt.pix.field = V4L2_FIELD_ANY;
1010 fmt->fmt.pix.bytesperline = 0;
1011 err = drv(file, VIDIOC_S_FMT, fmt);
1012 if (err < 0) {
1013 dprintk("VIDIOCMCAPTURE / VIDIOC_S_FMT: %ld\n", err);
1014 goto done;
1015 }
1016 }
1017 buf.index = mm->frame;
1018 buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1019 err = drv(file, VIDIOC_QUERYBUF, &buf);
1020 if (err < 0) {
1021 dprintk("VIDIOCMCAPTURE / VIDIOC_QUERYBUF: %ld\n", err);
1022 goto done;
1023 }
1024 err = drv(file, VIDIOC_QBUF, &buf);
1025 if (err < 0) {
1026 dprintk("VIDIOCMCAPTURE / VIDIOC_QBUF: %ld\n", err);
1027 goto done;
1028 }
1029 err = drv(file, VIDIOC_STREAMON, &captype);
1030 if (err < 0)
1031 dprintk("VIDIOCMCAPTURE / VIDIOC_STREAMON: %ld\n", err);
1032 done:
1033 kfree(fmt);
1034 return err;
1035 }
1036
1037 static noinline long v4l1_compat_sync(
1038 int *i,
1039 struct file *file,
1040 v4l2_kioctl drv)
1041 {
1042 long err;
1043 enum v4l2_buf_type captype = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1044 struct v4l2_buffer buf;
1045 struct poll_wqueues *pwq;
1046
1047 memset(&buf, 0, sizeof(buf));
1048 buf.index = *i;
1049 buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1050 err = drv(file, VIDIOC_QUERYBUF, &buf);
1051 if (err < 0) {
1052 /* No such buffer */
1053 dprintk("VIDIOCSYNC / VIDIOC_QUERYBUF: %ld\n", err);
1054 goto done;
1055 }
1056 if (!(buf.flags & V4L2_BUF_FLAG_MAPPED)) {
1057 /* Buffer is not mapped */
1058 err = -EINVAL;
1059 goto done;
1060 }
1061
1062 /* make sure capture actually runs so we don't block forever */
1063 err = drv(file, VIDIOC_STREAMON, &captype);
1064 if (err < 0) {
1065 dprintk("VIDIOCSYNC / VIDIOC_STREAMON: %ld\n", err);
1066 goto done;
1067 }
1068
1069 pwq = kmalloc(sizeof(*pwq), GFP_KERNEL);
1070 /* Loop as long as the buffer is queued, but not done */
1071 while ((buf.flags & (V4L2_BUF_FLAG_QUEUED | V4L2_BUF_FLAG_DONE))
1072 == V4L2_BUF_FLAG_QUEUED) {
1073 err = poll_one(file, pwq);
1074 if (err < 0 || /* error or sleep was interrupted */
1075 err == 0) /* timeout? Shouldn't occur. */
1076 break;
1077 err = drv(file, VIDIOC_QUERYBUF, &buf);
1078 if (err < 0)
1079 dprintk("VIDIOCSYNC / VIDIOC_QUERYBUF: %ld\n", err);
1080 }
1081 kfree(pwq);
1082 if (!(buf.flags & V4L2_BUF_FLAG_DONE)) /* not done */
1083 goto done;
1084 do {
1085 err = drv(file, VIDIOC_DQBUF, &buf);
1086 if (err < 0)
1087 dprintk("VIDIOCSYNC / VIDIOC_DQBUF: %ld\n", err);
1088 } while (err == 0 && buf.index != *i);
1089 done:
1090 return err;
1091 }
1092
1093 static noinline long v4l1_compat_get_vbi_format(
1094 struct vbi_format *fmt,
1095 struct file *file,
1096 v4l2_kioctl drv)
1097 {
1098 long err;
1099 struct v4l2_format *fmt2;
1100
1101 fmt2 = kzalloc(sizeof(*fmt2), GFP_KERNEL);
1102 if (!fmt2) {
1103 err = -ENOMEM;
1104 return err;
1105 }
1106 fmt2->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1107
1108 err = drv(file, VIDIOC_G_FMT, fmt2);
1109 if (err < 0) {
1110 dprintk("VIDIOCGVBIFMT / VIDIOC_G_FMT: %ld\n", err);
1111 goto done;
1112 }
1113 if (fmt2->fmt.vbi.sample_format != V4L2_PIX_FMT_GREY) {
1114 err = -EINVAL;
1115 goto done;
1116 }
1117 memset(fmt, 0, sizeof(*fmt));
1118 fmt->samples_per_line = fmt2->fmt.vbi.samples_per_line;
1119 fmt->sampling_rate = fmt2->fmt.vbi.sampling_rate;
1120 fmt->sample_format = VIDEO_PALETTE_RAW;
1121 fmt->start[0] = fmt2->fmt.vbi.start[0];
1122 fmt->count[0] = fmt2->fmt.vbi.count[0];
1123 fmt->start[1] = fmt2->fmt.vbi.start[1];
1124 fmt->count[1] = fmt2->fmt.vbi.count[1];
1125 fmt->flags = fmt2->fmt.vbi.flags & 0x03;
1126 done:
1127 kfree(fmt2);
1128 return err;
1129 }
1130
1131 static noinline long v4l1_compat_set_vbi_format(
1132 struct vbi_format *fmt,
1133 struct file *file,
1134 v4l2_kioctl drv)
1135 {
1136 long err;
1137 struct v4l2_format *fmt2 = NULL;
1138
1139 if (VIDEO_PALETTE_RAW != fmt->sample_format) {
1140 err = -EINVAL;
1141 return err;
1142 }
1143
1144 fmt2 = kzalloc(sizeof(*fmt2), GFP_KERNEL);
1145 if (!fmt2) {
1146 err = -ENOMEM;
1147 return err;
1148 }
1149 fmt2->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1150 fmt2->fmt.vbi.samples_per_line = fmt->samples_per_line;
1151 fmt2->fmt.vbi.sampling_rate = fmt->sampling_rate;
1152 fmt2->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1153 fmt2->fmt.vbi.start[0] = fmt->start[0];
1154 fmt2->fmt.vbi.count[0] = fmt->count[0];
1155 fmt2->fmt.vbi.start[1] = fmt->start[1];
1156 fmt2->fmt.vbi.count[1] = fmt->count[1];
1157 fmt2->fmt.vbi.flags = fmt->flags;
1158 err = drv(file, VIDIOC_TRY_FMT, fmt2);
1159 if (err < 0) {
1160 dprintk("VIDIOCSVBIFMT / VIDIOC_TRY_FMT: %ld\n", err);
1161 goto done;
1162 }
1163
1164 if (fmt2->fmt.vbi.samples_per_line != fmt->samples_per_line ||
1165 fmt2->fmt.vbi.sampling_rate != fmt->sampling_rate ||
1166 fmt2->fmt.vbi.sample_format != V4L2_PIX_FMT_GREY ||
1167 fmt2->fmt.vbi.start[0] != fmt->start[0] ||
1168 fmt2->fmt.vbi.count[0] != fmt->count[0] ||
1169 fmt2->fmt.vbi.start[1] != fmt->start[1] ||
1170 fmt2->fmt.vbi.count[1] != fmt->count[1] ||
1171 fmt2->fmt.vbi.flags != fmt->flags) {
1172 err = -EINVAL;
1173 goto done;
1174 }
1175 err = drv(file, VIDIOC_S_FMT, fmt2);
1176 if (err < 0)
1177 dprintk("VIDIOCSVBIFMT / VIDIOC_S_FMT: %ld\n", err);
1178 done:
1179 kfree(fmt2);
1180 return err;
1181 }
1182
1183 /*
1184 * This function is exported.
1185 */
1186 long
1187 v4l_compat_translate_ioctl(struct file *file,
1188 int cmd,
1189 void *arg,
1190 v4l2_kioctl drv)
1191 {
1192 long err;
1193
1194 switch (cmd) {
1195 case VIDIOCGCAP: /* capability */
1196 err = v4l1_compat_get_capabilities(arg, file, drv);
1197 break;
1198 case VIDIOCGFBUF: /* get frame buffer */
1199 err = v4l1_compat_get_frame_buffer(arg, file, drv);
1200 break;
1201 case VIDIOCSFBUF: /* set frame buffer */
1202 err = v4l1_compat_set_frame_buffer(arg, file, drv);
1203 break;
1204 case VIDIOCGWIN: /* get window or capture dimensions */
1205 err = v4l1_compat_get_win_cap_dimensions(arg, file, drv);
1206 break;
1207 case VIDIOCSWIN: /* set window and/or capture dimensions */
1208 err = v4l1_compat_set_win_cap_dimensions(arg, file, drv);
1209 break;
1210 case VIDIOCCAPTURE: /* turn on/off preview */
1211 err = v4l1_compat_turn_preview_on_off(arg, file, drv);
1212 break;
1213 case VIDIOCGCHAN: /* get input information */
1214 err = v4l1_compat_get_input_info(arg, file, drv);
1215 break;
1216 case VIDIOCSCHAN: /* set input */
1217 err = v4l1_compat_set_input(arg, file, drv);
1218 break;
1219 case VIDIOCGPICT: /* get tone controls & partial capture format */
1220 err = v4l1_compat_get_picture(arg, file, drv);
1221 break;
1222 case VIDIOCSPICT: /* set tone controls & partial capture format */
1223 err = v4l1_compat_set_picture(arg, file, drv);
1224 break;
1225 case VIDIOCGTUNER: /* get tuner information */
1226 err = v4l1_compat_get_tuner(arg, file, drv);
1227 break;
1228 case VIDIOCSTUNER: /* select a tuner input */
1229 err = v4l1_compat_select_tuner(arg, file, drv);
1230 break;
1231 case VIDIOCGFREQ: /* get frequency */
1232 err = v4l1_compat_get_frequency(arg, file, drv);
1233 break;
1234 case VIDIOCSFREQ: /* set frequency */
1235 err = v4l1_compat_set_frequency(arg, file, drv);
1236 break;
1237 case VIDIOCGAUDIO: /* get audio properties/controls */
1238 err = v4l1_compat_get_audio(arg, file, drv);
1239 break;
1240 case VIDIOCSAUDIO: /* set audio controls */
1241 err = v4l1_compat_set_audio(arg, file, drv);
1242 break;
1243 case VIDIOCMCAPTURE: /* capture a frame */
1244 err = v4l1_compat_capture_frame(arg, file, drv);
1245 break;
1246 case VIDIOCSYNC: /* wait for a frame */
1247 err = v4l1_compat_sync(arg, file, drv);
1248 break;
1249 case VIDIOCGVBIFMT: /* query VBI data capture format */
1250 err = v4l1_compat_get_vbi_format(arg, file, drv);
1251 break;
1252 case VIDIOCSVBIFMT:
1253 err = v4l1_compat_set_vbi_format(arg, file, drv);
1254 break;
1255 default:
1256 err = -ENOIOCTLCMD;
1257 break;
1258 }
1259
1260 return err;
1261 }
1262 EXPORT_SYMBOL(v4l_compat_translate_ioctl);
1263
1264 /*
1265 * Local variables:
1266 * c-basic-offset: 8
1267 * End:
1268 */
(deprecated) Btrfs devel tree