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Merge branches 'tracing/kmemtrace2' and 'tracing/ftrace' into tracing/urgent
[deliverable/linux.git] / drivers / media / video / v4l1-compat.c
1 /*
2 *
3 * Video for Linux Two
4 * Backward Compatibility Layer
5 *
6 * Support subroutines for providing V4L2 drivers with backward
7 * compatibility with applications using the old API.
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version
12 * 2 of the License, or (at your option) any later version.
13 *
14 * Author: Bill Dirks <bill@thedirks.org>
15 * et al.
16 *
17 */
18
19
20 #include <linux/init.h>
21 #include <linux/module.h>
22 #include <linux/types.h>
23 #include <linux/kernel.h>
24 #include <linux/sched.h>
25 #include <linux/mm.h>
26 #include <linux/fs.h>
27 #include <linux/file.h>
28 #include <linux/string.h>
29 #include <linux/errno.h>
30 #include <linux/slab.h>
31 #include <linux/videodev.h>
32 #include <media/v4l2-common.h>
33 #include <media/v4l2-ioctl.h>
34
35 #include <asm/uaccess.h>
36 #include <asm/system.h>
37 #include <asm/pgtable.h>
38
39 static unsigned int debug;
40 module_param(debug, int, 0644);
41 MODULE_PARM_DESC(debug, "enable debug messages");
42 MODULE_AUTHOR("Bill Dirks");
43 MODULE_DESCRIPTION("v4l(1) compatibility layer for v4l2 drivers.");
44 MODULE_LICENSE("GPL");
45
46 #define dprintk(fmt, arg...) \
47 do { \
48 if (debug) \
49 printk(KERN_DEBUG "v4l1-compat: " fmt , ## arg);\
50 } while (0)
51
52 /*
53 * I O C T L T R A N S L A T I O N
54 *
55 * From here on down is the code for translating the numerous
56 * ioctl commands from the old API to the new API.
57 */
58
59 static int
60 get_v4l_control(struct file *file,
61 int cid,
62 v4l2_kioctl drv)
63 {
64 struct v4l2_queryctrl qctrl2;
65 struct v4l2_control ctrl2;
66 int err;
67
68 qctrl2.id = cid;
69 err = drv(file, VIDIOC_QUERYCTRL, &qctrl2);
70 if (err < 0)
71 dprintk("VIDIOC_QUERYCTRL: %d\n", err);
72 if (err == 0 && !(qctrl2.flags & V4L2_CTRL_FLAG_DISABLED)) {
73 ctrl2.id = qctrl2.id;
74 err = drv(file, VIDIOC_G_CTRL, &ctrl2);
75 if (err < 0) {
76 dprintk("VIDIOC_G_CTRL: %d\n", err);
77 return 0;
78 }
79 return ((ctrl2.value - qctrl2.minimum) * 65535
80 + (qctrl2.maximum - qctrl2.minimum) / 2)
81 / (qctrl2.maximum - qctrl2.minimum);
82 }
83 return 0;
84 }
85
86 static int
87 set_v4l_control(struct file *file,
88 int cid,
89 int value,
90 v4l2_kioctl drv)
91 {
92 struct v4l2_queryctrl qctrl2;
93 struct v4l2_control ctrl2;
94 int err;
95
96 qctrl2.id = cid;
97 err = drv(file, VIDIOC_QUERYCTRL, &qctrl2);
98 if (err < 0)
99 dprintk("VIDIOC_QUERYCTRL: %d\n", err);
100 if (err == 0 &&
101 !(qctrl2.flags & V4L2_CTRL_FLAG_DISABLED) &&
102 !(qctrl2.flags & V4L2_CTRL_FLAG_GRABBED)) {
103 if (value < 0)
104 value = 0;
105 if (value > 65535)
106 value = 65535;
107 if (value && qctrl2.type == V4L2_CTRL_TYPE_BOOLEAN)
108 value = 65535;
109 ctrl2.id = qctrl2.id;
110 ctrl2.value =
111 (value * (qctrl2.maximum - qctrl2.minimum)
112 + 32767)
113 / 65535;
114 ctrl2.value += qctrl2.minimum;
115 err = drv(file, VIDIOC_S_CTRL, &ctrl2);
116 if (err < 0)
117 dprintk("VIDIOC_S_CTRL: %d\n", err);
118 }
119 return 0;
120 }
121
122 /* ----------------------------------------------------------------- */
123
124 static const unsigned int palette2pixelformat[] = {
125 [VIDEO_PALETTE_GREY] = V4L2_PIX_FMT_GREY,
126 [VIDEO_PALETTE_RGB555] = V4L2_PIX_FMT_RGB555,
127 [VIDEO_PALETTE_RGB565] = V4L2_PIX_FMT_RGB565,
128 [VIDEO_PALETTE_RGB24] = V4L2_PIX_FMT_BGR24,
129 [VIDEO_PALETTE_RGB32] = V4L2_PIX_FMT_BGR32,
130 /* yuv packed pixel */
131 [VIDEO_PALETTE_YUYV] = V4L2_PIX_FMT_YUYV,
132 [VIDEO_PALETTE_YUV422] = V4L2_PIX_FMT_YUYV,
133 [VIDEO_PALETTE_UYVY] = V4L2_PIX_FMT_UYVY,
134 /* yuv planar */
135 [VIDEO_PALETTE_YUV410P] = V4L2_PIX_FMT_YUV410,
136 [VIDEO_PALETTE_YUV420] = V4L2_PIX_FMT_YUV420,
137 [VIDEO_PALETTE_YUV420P] = V4L2_PIX_FMT_YUV420,
138 [VIDEO_PALETTE_YUV411P] = V4L2_PIX_FMT_YUV411P,
139 [VIDEO_PALETTE_YUV422P] = V4L2_PIX_FMT_YUV422P,
140 };
141
142 static unsigned int __pure
143 palette_to_pixelformat(unsigned int palette)
144 {
145 if (palette < ARRAY_SIZE(palette2pixelformat))
146 return palette2pixelformat[palette];
147 else
148 return 0;
149 }
150
151 static unsigned int __attribute_const__
152 pixelformat_to_palette(unsigned int pixelformat)
153 {
154 int palette = 0;
155 switch (pixelformat) {
156 case V4L2_PIX_FMT_GREY:
157 palette = VIDEO_PALETTE_GREY;
158 break;
159 case V4L2_PIX_FMT_RGB555:
160 palette = VIDEO_PALETTE_RGB555;
161 break;
162 case V4L2_PIX_FMT_RGB565:
163 palette = VIDEO_PALETTE_RGB565;
164 break;
165 case V4L2_PIX_FMT_BGR24:
166 palette = VIDEO_PALETTE_RGB24;
167 break;
168 case V4L2_PIX_FMT_BGR32:
169 palette = VIDEO_PALETTE_RGB32;
170 break;
171 /* yuv packed pixel */
172 case V4L2_PIX_FMT_YUYV:
173 palette = VIDEO_PALETTE_YUYV;
174 break;
175 case V4L2_PIX_FMT_UYVY:
176 palette = VIDEO_PALETTE_UYVY;
177 break;
178 /* yuv planar */
179 case V4L2_PIX_FMT_YUV410:
180 palette = VIDEO_PALETTE_YUV420;
181 break;
182 case V4L2_PIX_FMT_YUV420:
183 palette = VIDEO_PALETTE_YUV420;
184 break;
185 case V4L2_PIX_FMT_YUV411P:
186 palette = VIDEO_PALETTE_YUV411P;
187 break;
188 case V4L2_PIX_FMT_YUV422P:
189 palette = VIDEO_PALETTE_YUV422P;
190 break;
191 }
192 return palette;
193 }
194
195 /* ----------------------------------------------------------------- */
196
197 static int poll_one(struct file *file, struct poll_wqueues *pwq)
198 {
199 int retval = 1;
200 poll_table *table;
201
202 poll_initwait(pwq);
203 table = &pwq->pt;
204 for (;;) {
205 int mask;
206 set_current_state(TASK_INTERRUPTIBLE);
207 mask = file->f_op->poll(file, table);
208 if (mask & POLLIN)
209 break;
210 table = NULL;
211 if (signal_pending(current)) {
212 retval = -ERESTARTSYS;
213 break;
214 }
215 schedule();
216 }
217 set_current_state(TASK_RUNNING);
218 poll_freewait(pwq);
219 return retval;
220 }
221
222 static int count_inputs(
223 struct file *file,
224 v4l2_kioctl drv)
225 {
226 struct v4l2_input input2;
227 int i;
228
229 for (i = 0;; i++) {
230 memset(&input2, 0, sizeof(input2));
231 input2.index = i;
232 if (0 != drv(file, VIDIOC_ENUMINPUT, &input2))
233 break;
234 }
235 return i;
236 }
237
238 static int check_size(
239 struct file *file,
240 v4l2_kioctl drv,
241 int *maxw,
242 int *maxh)
243 {
244 struct v4l2_fmtdesc desc2;
245 struct v4l2_format fmt2;
246
247 memset(&desc2, 0, sizeof(desc2));
248 memset(&fmt2, 0, sizeof(fmt2));
249
250 desc2.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
251 if (0 != drv(file, VIDIOC_ENUM_FMT, &desc2))
252 goto done;
253
254 fmt2.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
255 fmt2.fmt.pix.width = 10000;
256 fmt2.fmt.pix.height = 10000;
257 fmt2.fmt.pix.pixelformat = desc2.pixelformat;
258 if (0 != drv(file, VIDIOC_TRY_FMT, &fmt2))
259 goto done;
260
261 *maxw = fmt2.fmt.pix.width;
262 *maxh = fmt2.fmt.pix.height;
263
264 done:
265 return 0;
266 }
267
268 /* ----------------------------------------------------------------- */
269
270 static noinline long v4l1_compat_get_capabilities(
271 struct video_capability *cap,
272 struct file *file,
273 v4l2_kioctl drv)
274 {
275 long err;
276 struct v4l2_framebuffer fbuf;
277 struct v4l2_capability *cap2;
278
279 cap2 = kzalloc(sizeof(*cap2), GFP_KERNEL);
280 if (!cap2) {
281 err = -ENOMEM;
282 return err;
283 }
284 memset(cap, 0, sizeof(*cap));
285 memset(&fbuf, 0, sizeof(fbuf));
286
287 err = drv(file, VIDIOC_QUERYCAP, cap2);
288 if (err < 0) {
289 dprintk("VIDIOCGCAP / VIDIOC_QUERYCAP: %ld\n", err);
290 goto done;
291 }
292 if (cap2->capabilities & V4L2_CAP_VIDEO_OVERLAY) {
293 err = drv(file, VIDIOC_G_FBUF, &fbuf);
294 if (err < 0) {
295 dprintk("VIDIOCGCAP / VIDIOC_G_FBUF: %ld\n", err);
296 memset(&fbuf, 0, sizeof(fbuf));
297 }
298 err = 0;
299 }
300
301 memcpy(cap->name, cap2->card,
302 min(sizeof(cap->name), sizeof(cap2->card)));
303 cap->name[sizeof(cap->name) - 1] = 0;
304 if (cap2->capabilities & V4L2_CAP_VIDEO_CAPTURE)
305 cap->type |= VID_TYPE_CAPTURE;
306 if (cap2->capabilities & V4L2_CAP_TUNER)
307 cap->type |= VID_TYPE_TUNER;
308 if (cap2->capabilities & V4L2_CAP_VBI_CAPTURE)
309 cap->type |= VID_TYPE_TELETEXT;
310 if (cap2->capabilities & V4L2_CAP_VIDEO_OVERLAY)
311 cap->type |= VID_TYPE_OVERLAY;
312 if (fbuf.capability & V4L2_FBUF_CAP_LIST_CLIPPING)
313 cap->type |= VID_TYPE_CLIPPING;
314
315 cap->channels = count_inputs(file, drv);
316 check_size(file, drv,
317 &cap->maxwidth, &cap->maxheight);
318 cap->audios = 0; /* FIXME */
319 cap->minwidth = 48; /* FIXME */
320 cap->minheight = 32; /* FIXME */
321
322 done:
323 kfree(cap2);
324 return err;
325 }
326
327 static noinline long v4l1_compat_get_frame_buffer(
328 struct video_buffer *buffer,
329 struct file *file,
330 v4l2_kioctl drv)
331 {
332 long err;
333 struct v4l2_framebuffer fbuf;
334
335 memset(buffer, 0, sizeof(*buffer));
336 memset(&fbuf, 0, sizeof(fbuf));
337
338 err = drv(file, VIDIOC_G_FBUF, &fbuf);
339 if (err < 0) {
340 dprintk("VIDIOCGFBUF / VIDIOC_G_FBUF: %ld\n", err);
341 goto done;
342 }
343 buffer->base = fbuf.base;
344 buffer->height = fbuf.fmt.height;
345 buffer->width = fbuf.fmt.width;
346
347 switch (fbuf.fmt.pixelformat) {
348 case V4L2_PIX_FMT_RGB332:
349 buffer->depth = 8;
350 break;
351 case V4L2_PIX_FMT_RGB555:
352 buffer->depth = 15;
353 break;
354 case V4L2_PIX_FMT_RGB565:
355 buffer->depth = 16;
356 break;
357 case V4L2_PIX_FMT_BGR24:
358 buffer->depth = 24;
359 break;
360 case V4L2_PIX_FMT_BGR32:
361 buffer->depth = 32;
362 break;
363 default:
364 buffer->depth = 0;
365 }
366 if (fbuf.fmt.bytesperline) {
367 buffer->bytesperline = fbuf.fmt.bytesperline;
368 if (!buffer->depth && buffer->width)
369 buffer->depth = ((fbuf.fmt.bytesperline<<3)
370 + (buffer->width-1))
371 / buffer->width;
372 } else {
373 buffer->bytesperline =
374 (buffer->width * buffer->depth + 7) & 7;
375 buffer->bytesperline >>= 3;
376 }
377 done:
378 return err;
379 }
380
381 static noinline long v4l1_compat_set_frame_buffer(
382 struct video_buffer *buffer,
383 struct file *file,
384 v4l2_kioctl drv)
385 {
386 long err;
387 struct v4l2_framebuffer fbuf;
388
389 memset(&fbuf, 0, sizeof(fbuf));
390 fbuf.base = buffer->base;
391 fbuf.fmt.height = buffer->height;
392 fbuf.fmt.width = buffer->width;
393 switch (buffer->depth) {
394 case 8:
395 fbuf.fmt.pixelformat = V4L2_PIX_FMT_RGB332;
396 break;
397 case 15:
398 fbuf.fmt.pixelformat = V4L2_PIX_FMT_RGB555;
399 break;
400 case 16:
401 fbuf.fmt.pixelformat = V4L2_PIX_FMT_RGB565;
402 break;
403 case 24:
404 fbuf.fmt.pixelformat = V4L2_PIX_FMT_BGR24;
405 break;
406 case 32:
407 fbuf.fmt.pixelformat = V4L2_PIX_FMT_BGR32;
408 break;
409 }
410 fbuf.fmt.bytesperline = buffer->bytesperline;
411 err = drv(file, VIDIOC_S_FBUF, &fbuf);
412 if (err < 0)
413 dprintk("VIDIOCSFBUF / VIDIOC_S_FBUF: %ld\n", err);
414 return err;
415 }
416
417 static noinline long v4l1_compat_get_win_cap_dimensions(
418 struct video_window *win,
419 struct file *file,
420 v4l2_kioctl drv)
421 {
422 long err;
423 struct v4l2_format *fmt;
424
425 fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
426 if (!fmt) {
427 err = -ENOMEM;
428 return err;
429 }
430 memset(win, 0, sizeof(*win));
431
432 fmt->type = V4L2_BUF_TYPE_VIDEO_OVERLAY;
433 err = drv(file, VIDIOC_G_FMT, fmt);
434 if (err < 0)
435 dprintk("VIDIOCGWIN / VIDIOC_G_WIN: %ld\n", err);
436 if (err == 0) {
437 win->x = fmt->fmt.win.w.left;
438 win->y = fmt->fmt.win.w.top;
439 win->width = fmt->fmt.win.w.width;
440 win->height = fmt->fmt.win.w.height;
441 win->chromakey = fmt->fmt.win.chromakey;
442 win->clips = NULL;
443 win->clipcount = 0;
444 goto done;
445 }
446
447 fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
448 err = drv(file, VIDIOC_G_FMT, fmt);
449 if (err < 0) {
450 dprintk("VIDIOCGWIN / VIDIOC_G_FMT: %ld\n", err);
451 goto done;
452 }
453 win->x = 0;
454 win->y = 0;
455 win->width = fmt->fmt.pix.width;
456 win->height = fmt->fmt.pix.height;
457 win->chromakey = 0;
458 win->clips = NULL;
459 win->clipcount = 0;
460 done:
461 kfree(fmt);
462 return err;
463 }
464
465 static noinline long v4l1_compat_set_win_cap_dimensions(
466 struct video_window *win,
467 struct file *file,
468 v4l2_kioctl drv)
469 {
470 long err, err1, err2;
471 struct v4l2_format *fmt;
472
473 fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
474 if (!fmt) {
475 err = -ENOMEM;
476 return err;
477 }
478 fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
479 drv(file, VIDIOC_STREAMOFF, &fmt->type);
480 err1 = drv(file, VIDIOC_G_FMT, fmt);
481 if (err1 < 0)
482 dprintk("VIDIOCSWIN / VIDIOC_G_FMT: %ld\n", err1);
483 if (err1 == 0) {
484 fmt->fmt.pix.width = win->width;
485 fmt->fmt.pix.height = win->height;
486 fmt->fmt.pix.field = V4L2_FIELD_ANY;
487 fmt->fmt.pix.bytesperline = 0;
488 err = drv(file, VIDIOC_S_FMT, fmt);
489 if (err < 0)
490 dprintk("VIDIOCSWIN / VIDIOC_S_FMT #1: %ld\n",
491 err);
492 win->width = fmt->fmt.pix.width;
493 win->height = fmt->fmt.pix.height;
494 }
495
496 memset(fmt, 0, sizeof(*fmt));
497 fmt->type = V4L2_BUF_TYPE_VIDEO_OVERLAY;
498 fmt->fmt.win.w.left = win->x;
499 fmt->fmt.win.w.top = win->y;
500 fmt->fmt.win.w.width = win->width;
501 fmt->fmt.win.w.height = win->height;
502 fmt->fmt.win.chromakey = win->chromakey;
503 fmt->fmt.win.clips = (void __user *)win->clips;
504 fmt->fmt.win.clipcount = win->clipcount;
505 err2 = drv(file, VIDIOC_S_FMT, fmt);
506 if (err2 < 0)
507 dprintk("VIDIOCSWIN / VIDIOC_S_FMT #2: %ld\n", err2);
508
509 if (err1 != 0 && err2 != 0)
510 err = err1;
511 else
512 err = 0;
513 kfree(fmt);
514 return err;
515 }
516
517 static noinline long v4l1_compat_turn_preview_on_off(
518 int *on,
519 struct file *file,
520 v4l2_kioctl drv)
521 {
522 long err;
523 enum v4l2_buf_type captype = V4L2_BUF_TYPE_VIDEO_CAPTURE;
524
525 if (0 == *on) {
526 /* dirty hack time. But v4l1 has no STREAMOFF
527 * equivalent in the API, and this one at
528 * least comes close ... */
529 drv(file, VIDIOC_STREAMOFF, &captype);
530 }
531 err = drv(file, VIDIOC_OVERLAY, on);
532 if (err < 0)
533 dprintk("VIDIOCCAPTURE / VIDIOC_PREVIEW: %ld\n", err);
534 return err;
535 }
536
537 static noinline long v4l1_compat_get_input_info(
538 struct video_channel *chan,
539 struct file *file,
540 v4l2_kioctl drv)
541 {
542 long err;
543 struct v4l2_input input2;
544 v4l2_std_id sid;
545
546 memset(&input2, 0, sizeof(input2));
547 input2.index = chan->channel;
548 err = drv(file, VIDIOC_ENUMINPUT, &input2);
549 if (err < 0) {
550 dprintk("VIDIOCGCHAN / VIDIOC_ENUMINPUT: "
551 "channel=%d err=%ld\n", chan->channel, err);
552 goto done;
553 }
554 chan->channel = input2.index;
555 memcpy(chan->name, input2.name,
556 min(sizeof(chan->name), sizeof(input2.name)));
557 chan->name[sizeof(chan->name) - 1] = 0;
558 chan->tuners = (input2.type == V4L2_INPUT_TYPE_TUNER) ? 1 : 0;
559 chan->flags = (chan->tuners) ? VIDEO_VC_TUNER : 0;
560 switch (input2.type) {
561 case V4L2_INPUT_TYPE_TUNER:
562 chan->type = VIDEO_TYPE_TV;
563 break;
564 default:
565 case V4L2_INPUT_TYPE_CAMERA:
566 chan->type = VIDEO_TYPE_CAMERA;
567 break;
568 }
569 chan->norm = 0;
570 err = drv(file, VIDIOC_G_STD, &sid);
571 if (err < 0)
572 dprintk("VIDIOCGCHAN / VIDIOC_G_STD: %ld\n", err);
573 if (err == 0) {
574 if (sid & V4L2_STD_PAL)
575 chan->norm = VIDEO_MODE_PAL;
576 if (sid & V4L2_STD_NTSC)
577 chan->norm = VIDEO_MODE_NTSC;
578 if (sid & V4L2_STD_SECAM)
579 chan->norm = VIDEO_MODE_SECAM;
580 }
581 done:
582 return err;
583 }
584
585 static noinline long v4l1_compat_set_input(
586 struct video_channel *chan,
587 struct file *file,
588 v4l2_kioctl drv)
589 {
590 long err;
591 v4l2_std_id sid = 0;
592
593 err = drv(file, VIDIOC_S_INPUT, &chan->channel);
594 if (err < 0)
595 dprintk("VIDIOCSCHAN / VIDIOC_S_INPUT: %ld\n", err);
596 switch (chan->norm) {
597 case VIDEO_MODE_PAL:
598 sid = V4L2_STD_PAL;
599 break;
600 case VIDEO_MODE_NTSC:
601 sid = V4L2_STD_NTSC;
602 break;
603 case VIDEO_MODE_SECAM:
604 sid = V4L2_STD_SECAM;
605 break;
606 }
607 if (0 != sid) {
608 err = drv(file, VIDIOC_S_STD, &sid);
609 if (err < 0)
610 dprintk("VIDIOCSCHAN / VIDIOC_S_STD: %ld\n", err);
611 }
612 return err;
613 }
614
615 static noinline long v4l1_compat_get_picture(
616 struct video_picture *pict,
617 struct file *file,
618 v4l2_kioctl drv)
619 {
620 long err;
621 struct v4l2_format *fmt;
622
623 fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
624 if (!fmt) {
625 err = -ENOMEM;
626 return err;
627 }
628
629 pict->brightness = get_v4l_control(file,
630 V4L2_CID_BRIGHTNESS, drv);
631 pict->hue = get_v4l_control(file,
632 V4L2_CID_HUE, drv);
633 pict->contrast = get_v4l_control(file,
634 V4L2_CID_CONTRAST, drv);
635 pict->colour = get_v4l_control(file,
636 V4L2_CID_SATURATION, drv);
637 pict->whiteness = get_v4l_control(file,
638 V4L2_CID_WHITENESS, drv);
639
640 fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
641 err = drv(file, VIDIOC_G_FMT, fmt);
642 if (err < 0) {
643 dprintk("VIDIOCGPICT / VIDIOC_G_FMT: %ld\n", err);
644 goto done;
645 }
646
647 pict->depth = ((fmt->fmt.pix.bytesperline << 3)
648 + (fmt->fmt.pix.width - 1))
649 / fmt->fmt.pix.width;
650 pict->palette = pixelformat_to_palette(
651 fmt->fmt.pix.pixelformat);
652 done:
653 kfree(fmt);
654 return err;
655 }
656
657 static noinline long v4l1_compat_set_picture(
658 struct video_picture *pict,
659 struct file *file,
660 v4l2_kioctl drv)
661 {
662 long err;
663 struct v4l2_framebuffer fbuf;
664 int mem_err = 0, ovl_err = 0;
665 struct v4l2_format *fmt;
666
667 fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
668 if (!fmt) {
669 err = -ENOMEM;
670 return err;
671 }
672 memset(&fbuf, 0, sizeof(fbuf));
673
674 set_v4l_control(file,
675 V4L2_CID_BRIGHTNESS, pict->brightness, drv);
676 set_v4l_control(file,
677 V4L2_CID_HUE, pict->hue, drv);
678 set_v4l_control(file,
679 V4L2_CID_CONTRAST, pict->contrast, drv);
680 set_v4l_control(file,
681 V4L2_CID_SATURATION, pict->colour, drv);
682 set_v4l_control(file,
683 V4L2_CID_WHITENESS, pict->whiteness, drv);
684 /*
685 * V4L1 uses this ioctl to set both memory capture and overlay
686 * pixel format, while V4L2 has two different ioctls for this.
687 * Some cards may not support one or the other, and may support
688 * different pixel formats for memory vs overlay.
689 */
690
691 fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
692 err = drv(file, VIDIOC_G_FMT, fmt);
693 /* If VIDIOC_G_FMT failed, then the driver likely doesn't
694 support memory capture. Trying to set the memory capture
695 parameters would be pointless. */
696 if (err < 0) {
697 dprintk("VIDIOCSPICT / VIDIOC_G_FMT: %ld\n", err);
698 mem_err = -1000; /* didn't even try */
699 } else if (fmt->fmt.pix.pixelformat !=
700 palette_to_pixelformat(pict->palette)) {
701 fmt->fmt.pix.pixelformat = palette_to_pixelformat(
702 pict->palette);
703 mem_err = drv(file, VIDIOC_S_FMT, fmt);
704 if (mem_err < 0)
705 dprintk("VIDIOCSPICT / VIDIOC_S_FMT: %d\n",
706 mem_err);
707 }
708
709 err = drv(file, VIDIOC_G_FBUF, &fbuf);
710 /* If VIDIOC_G_FBUF failed, then the driver likely doesn't
711 support overlay. Trying to set the overlay parameters
712 would be quite pointless. */
713 if (err < 0) {
714 dprintk("VIDIOCSPICT / VIDIOC_G_FBUF: %ld\n", err);
715 ovl_err = -1000; /* didn't even try */
716 } else if (fbuf.fmt.pixelformat !=
717 palette_to_pixelformat(pict->palette)) {
718 fbuf.fmt.pixelformat = palette_to_pixelformat(
719 pict->palette);
720 ovl_err = drv(file, VIDIOC_S_FBUF, &fbuf);
721 if (ovl_err < 0)
722 dprintk("VIDIOCSPICT / VIDIOC_S_FBUF: %d\n",
723 ovl_err);
724 }
725 if (ovl_err < 0 && mem_err < 0) {
726 /* ioctl failed, couldn't set either parameter */
727 if (mem_err != -1000)
728 err = mem_err;
729 else if (ovl_err == -EPERM)
730 err = 0;
731 else
732 err = ovl_err;
733 } else
734 err = 0;
735 kfree(fmt);
736 return err;
737 }
738
739 static noinline long v4l1_compat_get_tuner(
740 struct video_tuner *tun,
741 struct file *file,
742 v4l2_kioctl drv)
743 {
744 long err;
745 int i;
746 struct v4l2_tuner tun2;
747 struct v4l2_standard std2;
748 v4l2_std_id sid;
749
750 memset(&tun2, 0, sizeof(tun2));
751 err = drv(file, VIDIOC_G_TUNER, &tun2);
752 if (err < 0) {
753 dprintk("VIDIOCGTUNER / VIDIOC_G_TUNER: %ld\n", err);
754 goto done;
755 }
756 memcpy(tun->name, tun2.name,
757 min(sizeof(tun->name), sizeof(tun2.name)));
758 tun->name[sizeof(tun->name) - 1] = 0;
759 tun->rangelow = tun2.rangelow;
760 tun->rangehigh = tun2.rangehigh;
761 tun->flags = 0;
762 tun->mode = VIDEO_MODE_AUTO;
763
764 for (i = 0; i < 64; i++) {
765 memset(&std2, 0, sizeof(std2));
766 std2.index = i;
767 if (0 != drv(file, VIDIOC_ENUMSTD, &std2))
768 break;
769 if (std2.id & V4L2_STD_PAL)
770 tun->flags |= VIDEO_TUNER_PAL;
771 if (std2.id & V4L2_STD_NTSC)
772 tun->flags |= VIDEO_TUNER_NTSC;
773 if (std2.id & V4L2_STD_SECAM)
774 tun->flags |= VIDEO_TUNER_SECAM;
775 }
776
777 err = drv(file, VIDIOC_G_STD, &sid);
778 if (err < 0)
779 dprintk("VIDIOCGTUNER / VIDIOC_G_STD: %ld\n", err);
780 if (err == 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_INPUT, &t);
810 if (err < 0)
811 dprintk("VIDIOCSTUNER / VIDIOC_S_INPUT: %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 */
Linux kernel - Deliverables
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