Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Video for Linux Two | |
3 | * Backward Compatibility Layer | |
4 | * | |
5 | * Support subroutines for providing V4L2 drivers with backward | |
6 | * compatibility with applications using the old API. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU General Public License | |
10 | * as published by the Free Software Foundation; either version | |
11 | * 2 of the License, or (at your option) any later version. | |
12 | * | |
13 | * Author: Bill Dirks <bdirks@pacbell.net> | |
14 | * et al. | |
15 | * | |
16 | */ | |
17 | ||
18 | #ifndef __KERNEL__ | |
19 | #define __KERNEL__ | |
20 | #endif | |
21 | ||
22 | #include <linux/config.h> | |
23 | ||
24 | #include <linux/init.h> | |
25 | #include <linux/module.h> | |
26 | #include <linux/types.h> | |
27 | #include <linux/kernel.h> | |
28 | #include <linux/sched.h> | |
29 | #include <linux/smp_lock.h> | |
30 | #include <linux/mm.h> | |
31 | #include <linux/fs.h> | |
32 | #include <linux/file.h> | |
33 | #include <linux/string.h> | |
34 | #include <linux/errno.h> | |
35 | #include <linux/slab.h> | |
36 | #include <linux/videodev.h> | |
37 | ||
38 | #include <asm/uaccess.h> | |
39 | #include <asm/system.h> | |
40 | #include <asm/pgtable.h> | |
41 | ||
42 | #ifdef CONFIG_KMOD | |
43 | #include <linux/kmod.h> | |
44 | #endif | |
45 | ||
46 | static unsigned int debug = 0; | |
47 | module_param(debug, int, 0644); | |
48 | MODULE_PARM_DESC(debug,"enable debug messages"); | |
49 | MODULE_AUTHOR("Bill Dirks"); | |
50 | MODULE_DESCRIPTION("v4l(1) compatibility layer for v4l2 drivers."); | |
51 | MODULE_LICENSE("GPL"); | |
52 | ||
53 | #define dprintk(fmt, arg...) if (debug) \ | |
54 | printk(KERN_DEBUG "v4l1-compat: " fmt , ## arg) | |
55 | ||
56 | /* | |
57 | * I O C T L T R A N S L A T I O N | |
58 | * | |
59 | * From here on down is the code for translating the numerous | |
60 | * ioctl commands from the old API to the new API. | |
61 | */ | |
62 | ||
63 | static int | |
64 | get_v4l_control(struct inode *inode, | |
65 | struct file *file, | |
66 | int cid, | |
67 | v4l2_kioctl drv) | |
68 | { | |
69 | struct v4l2_queryctrl qctrl2; | |
70 | struct v4l2_control ctrl2; | |
71 | int err; | |
72 | ||
73 | qctrl2.id = cid; | |
74 | err = drv(inode, file, VIDIOC_QUERYCTRL, &qctrl2); | |
75 | if (err < 0) | |
76 | dprintk("VIDIOC_QUERYCTRL: %d\n",err); | |
77 | if (err == 0 && | |
78 | !(qctrl2.flags & V4L2_CTRL_FLAG_DISABLED)) | |
79 | { | |
80 | ctrl2.id = qctrl2.id; | |
81 | err = drv(inode, file, VIDIOC_G_CTRL, &ctrl2); | |
82 | if (err < 0) { | |
83 | dprintk("VIDIOC_G_CTRL: %d\n",err); | |
84 | return 0; | |
85 | } | |
86 | return ((ctrl2.value - qctrl2.minimum) * 65535 | |
87 | + (qctrl2.maximum - qctrl2.minimum) / 2) | |
88 | / (qctrl2.maximum - qctrl2.minimum); | |
89 | } | |
90 | return 0; | |
91 | } | |
92 | ||
93 | static int | |
94 | set_v4l_control(struct inode *inode, | |
95 | struct file *file, | |
96 | int cid, | |
97 | int value, | |
98 | v4l2_kioctl drv) | |
99 | { | |
100 | struct v4l2_queryctrl qctrl2; | |
101 | struct v4l2_control ctrl2; | |
102 | int err; | |
103 | ||
104 | qctrl2.id = cid; | |
105 | err = drv(inode, file, VIDIOC_QUERYCTRL, &qctrl2); | |
106 | if (err < 0) | |
107 | dprintk("VIDIOC_QUERYCTRL: %d\n",err); | |
108 | if (err == 0 && | |
109 | !(qctrl2.flags & V4L2_CTRL_FLAG_DISABLED) && | |
110 | !(qctrl2.flags & V4L2_CTRL_FLAG_GRABBED)) | |
111 | { | |
112 | if (value < 0) | |
113 | value = 0; | |
114 | if (value > 65535) | |
115 | value = 65535; | |
116 | if (value && qctrl2.type == V4L2_CTRL_TYPE_BOOLEAN) | |
117 | value = 65535; | |
118 | ctrl2.id = qctrl2.id; | |
119 | ctrl2.value = | |
120 | (value * (qctrl2.maximum - qctrl2.minimum) | |
121 | + 32767) | |
122 | / 65535; | |
123 | ctrl2.value += qctrl2.minimum; | |
124 | err = drv(inode, file, VIDIOC_S_CTRL, &ctrl2); | |
125 | if (err < 0) | |
126 | dprintk("VIDIOC_S_CTRL: %d\n",err); | |
127 | } | |
128 | return 0; | |
129 | } | |
130 | ||
131 | /* ----------------------------------------------------------------- */ | |
132 | ||
133 | static int palette2pixelformat[] = { | |
134 | [VIDEO_PALETTE_GREY] = V4L2_PIX_FMT_GREY, | |
135 | [VIDEO_PALETTE_RGB555] = V4L2_PIX_FMT_RGB555, | |
136 | [VIDEO_PALETTE_RGB565] = V4L2_PIX_FMT_RGB565, | |
137 | [VIDEO_PALETTE_RGB24] = V4L2_PIX_FMT_BGR24, | |
138 | [VIDEO_PALETTE_RGB32] = V4L2_PIX_FMT_BGR32, | |
139 | /* yuv packed pixel */ | |
140 | [VIDEO_PALETTE_YUYV] = V4L2_PIX_FMT_YUYV, | |
141 | [VIDEO_PALETTE_YUV422] = V4L2_PIX_FMT_YUYV, | |
142 | [VIDEO_PALETTE_UYVY] = V4L2_PIX_FMT_UYVY, | |
143 | /* yuv planar */ | |
144 | [VIDEO_PALETTE_YUV410P] = V4L2_PIX_FMT_YUV410, | |
145 | [VIDEO_PALETTE_YUV420] = V4L2_PIX_FMT_YUV420, | |
146 | [VIDEO_PALETTE_YUV420P] = V4L2_PIX_FMT_YUV420, | |
147 | [VIDEO_PALETTE_YUV411P] = V4L2_PIX_FMT_YUV411P, | |
148 | [VIDEO_PALETTE_YUV422P] = V4L2_PIX_FMT_YUV422P, | |
149 | }; | |
150 | ||
151 | static unsigned int | |
152 | palette_to_pixelformat(unsigned int palette) | |
153 | { | |
154 | if (palette < ARRAY_SIZE(palette2pixelformat)) | |
155 | return palette2pixelformat[palette]; | |
156 | else | |
157 | return 0; | |
158 | } | |
159 | ||
160 | static unsigned int | |
161 | pixelformat_to_palette(int pixelformat) | |
162 | { | |
163 | int palette = 0; | |
164 | switch (pixelformat) | |
165 | { | |
166 | case V4L2_PIX_FMT_GREY: | |
167 | palette = VIDEO_PALETTE_GREY; | |
168 | break; | |
169 | case V4L2_PIX_FMT_RGB555: | |
170 | palette = VIDEO_PALETTE_RGB555; | |
171 | break; | |
172 | case V4L2_PIX_FMT_RGB565: | |
173 | palette = VIDEO_PALETTE_RGB565; | |
174 | break; | |
175 | case V4L2_PIX_FMT_BGR24: | |
176 | palette = VIDEO_PALETTE_RGB24; | |
177 | break; | |
178 | case V4L2_PIX_FMT_BGR32: | |
179 | palette = VIDEO_PALETTE_RGB32; | |
180 | break; | |
181 | /* yuv packed pixel */ | |
182 | case V4L2_PIX_FMT_YUYV: | |
183 | palette = VIDEO_PALETTE_YUYV; | |
184 | break; | |
185 | case V4L2_PIX_FMT_UYVY: | |
186 | palette = VIDEO_PALETTE_UYVY; | |
187 | break; | |
188 | /* yuv planar */ | |
189 | case V4L2_PIX_FMT_YUV410: | |
190 | palette = VIDEO_PALETTE_YUV420; | |
191 | break; | |
192 | case V4L2_PIX_FMT_YUV420: | |
193 | palette = VIDEO_PALETTE_YUV420; | |
194 | break; | |
195 | case V4L2_PIX_FMT_YUV411P: | |
196 | palette = VIDEO_PALETTE_YUV411P; | |
197 | break; | |
198 | case V4L2_PIX_FMT_YUV422P: | |
199 | palette = VIDEO_PALETTE_YUV422P; | |
200 | break; | |
201 | } | |
202 | return palette; | |
203 | } | |
204 | ||
205 | /* ----------------------------------------------------------------- */ | |
206 | ||
207 | static int poll_one(struct file *file) | |
208 | { | |
209 | int retval = 1; | |
210 | poll_table *table; | |
211 | struct poll_wqueues pwq; | |
212 | ||
213 | poll_initwait(&pwq); | |
214 | table = &pwq.pt; | |
215 | for (;;) { | |
216 | int mask; | |
217 | set_current_state(TASK_INTERRUPTIBLE); | |
218 | mask = file->f_op->poll(file, table); | |
219 | if (mask & POLLIN) | |
220 | break; | |
221 | table = NULL; | |
222 | if (signal_pending(current)) { | |
223 | retval = -ERESTARTSYS; | |
224 | break; | |
225 | } | |
226 | schedule(); | |
227 | } | |
228 | set_current_state(TASK_RUNNING); | |
229 | poll_freewait(&pwq); | |
230 | return retval; | |
231 | } | |
232 | ||
233 | static int count_inputs(struct inode *inode, | |
234 | struct file *file, | |
235 | v4l2_kioctl drv) | |
236 | { | |
237 | struct v4l2_input input2; | |
238 | int i; | |
239 | ||
240 | for (i = 0;; i++) { | |
241 | memset(&input2,0,sizeof(input2)); | |
242 | input2.index = i; | |
243 | if (0 != drv(inode,file,VIDIOC_ENUMINPUT, &input2)) | |
244 | break; | |
245 | } | |
246 | return i; | |
247 | } | |
248 | ||
249 | static int check_size(struct inode *inode, | |
250 | struct file *file, | |
251 | v4l2_kioctl drv, | |
252 | int *maxw, int *maxh) | |
253 | { | |
254 | struct v4l2_fmtdesc desc2; | |
255 | struct v4l2_format fmt2; | |
256 | ||
257 | memset(&desc2,0,sizeof(desc2)); | |
258 | memset(&fmt2,0,sizeof(fmt2)); | |
259 | ||
260 | desc2.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
261 | if (0 != drv(inode,file,VIDIOC_ENUM_FMT, &desc2)) | |
262 | goto done; | |
263 | ||
264 | fmt2.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
265 | fmt2.fmt.pix.width = 10000; | |
266 | fmt2.fmt.pix.height = 10000; | |
267 | fmt2.fmt.pix.pixelformat = desc2.pixelformat; | |
268 | if (0 != drv(inode,file,VIDIOC_TRY_FMT, &fmt2)) | |
269 | goto done; | |
270 | ||
271 | *maxw = fmt2.fmt.pix.width; | |
272 | *maxh = fmt2.fmt.pix.height; | |
273 | ||
274 | done: | |
275 | return 0; | |
276 | } | |
277 | ||
278 | /* ----------------------------------------------------------------- */ | |
279 | ||
280 | /* | |
281 | * This function is exported. | |
282 | */ | |
283 | int | |
284 | v4l_compat_translate_ioctl(struct inode *inode, | |
285 | struct file *file, | |
286 | int cmd, | |
287 | void *arg, | |
288 | v4l2_kioctl drv) | |
289 | { | |
290 | struct v4l2_capability *cap2 = NULL; | |
291 | struct v4l2_format *fmt2 = NULL; | |
292 | enum v4l2_buf_type captype = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
293 | ||
294 | struct v4l2_framebuffer fbuf2; | |
295 | struct v4l2_input input2; | |
296 | struct v4l2_tuner tun2; | |
297 | struct v4l2_standard std2; | |
298 | struct v4l2_frequency freq2; | |
299 | struct v4l2_audio aud2; | |
300 | struct v4l2_queryctrl qctrl2; | |
301 | struct v4l2_buffer buf2; | |
302 | v4l2_std_id sid; | |
303 | int i, err = 0; | |
304 | ||
305 | switch (cmd) { | |
306 | case VIDIOCGCAP: /* capability */ | |
307 | { | |
308 | struct video_capability *cap = arg; | |
309 | ||
310 | cap2 = kmalloc(sizeof(*cap2),GFP_KERNEL); | |
311 | memset(cap, 0, sizeof(*cap)); | |
312 | memset(cap2, 0, sizeof(*cap2)); | |
313 | memset(&fbuf2, 0, sizeof(fbuf2)); | |
314 | ||
315 | err = drv(inode, file, VIDIOC_QUERYCAP, cap2); | |
316 | if (err < 0) { | |
317 | dprintk("VIDIOCGCAP / VIDIOC_QUERYCAP: %d\n",err); | |
318 | break; | |
319 | } | |
320 | if (cap2->capabilities & V4L2_CAP_VIDEO_OVERLAY) { | |
321 | err = drv(inode, file, VIDIOC_G_FBUF, &fbuf2); | |
322 | if (err < 0) { | |
323 | dprintk("VIDIOCGCAP / VIDIOC_G_FBUF: %d\n",err); | |
324 | memset(&fbuf2, 0, sizeof(fbuf2)); | |
325 | } | |
326 | err = 0; | |
327 | } | |
328 | ||
329 | memcpy(cap->name, cap2->card, | |
330 | min(sizeof(cap->name), sizeof(cap2->card))); | |
331 | cap->name[sizeof(cap->name) - 1] = 0; | |
332 | if (cap2->capabilities & V4L2_CAP_VIDEO_CAPTURE) | |
333 | cap->type |= VID_TYPE_CAPTURE; | |
334 | if (cap2->capabilities & V4L2_CAP_TUNER) | |
335 | cap->type |= VID_TYPE_TUNER; | |
336 | if (cap2->capabilities & V4L2_CAP_VBI_CAPTURE) | |
337 | cap->type |= VID_TYPE_TELETEXT; | |
338 | if (cap2->capabilities & V4L2_CAP_VIDEO_OVERLAY) | |
339 | cap->type |= VID_TYPE_OVERLAY; | |
340 | if (fbuf2.capability & V4L2_FBUF_CAP_LIST_CLIPPING) | |
341 | cap->type |= VID_TYPE_CLIPPING; | |
342 | ||
343 | cap->channels = count_inputs(inode,file,drv); | |
344 | check_size(inode,file,drv, | |
345 | &cap->maxwidth,&cap->maxheight); | |
346 | cap->audios = 0; /* FIXME */ | |
347 | cap->minwidth = 48; /* FIXME */ | |
348 | cap->minheight = 32; /* FIXME */ | |
349 | break; | |
350 | } | |
351 | case VIDIOCGFBUF: /* get frame buffer */ | |
352 | { | |
353 | struct video_buffer *buffer = arg; | |
354 | ||
355 | err = drv(inode, file, VIDIOC_G_FBUF, &fbuf2); | |
356 | if (err < 0) { | |
357 | dprintk("VIDIOCGFBUF / VIDIOC_G_FBUF: %d\n",err); | |
358 | break; | |
359 | } | |
360 | buffer->base = fbuf2.base; | |
361 | buffer->height = fbuf2.fmt.height; | |
362 | buffer->width = fbuf2.fmt.width; | |
363 | ||
364 | switch (fbuf2.fmt.pixelformat) { | |
365 | case V4L2_PIX_FMT_RGB332: | |
366 | buffer->depth = 8; | |
367 | break; | |
368 | case V4L2_PIX_FMT_RGB555: | |
369 | buffer->depth = 15; | |
370 | break; | |
371 | case V4L2_PIX_FMT_RGB565: | |
372 | buffer->depth = 16; | |
373 | break; | |
374 | case V4L2_PIX_FMT_BGR24: | |
375 | buffer->depth = 24; | |
376 | break; | |
377 | case V4L2_PIX_FMT_BGR32: | |
378 | buffer->depth = 32; | |
379 | break; | |
380 | default: | |
381 | buffer->depth = 0; | |
382 | } | |
383 | if (0 != fbuf2.fmt.bytesperline) | |
384 | buffer->bytesperline = fbuf2.fmt.bytesperline; | |
385 | else { | |
386 | buffer->bytesperline = | |
387 | (buffer->width * buffer->depth + 7) & 7; | |
388 | buffer->bytesperline >>= 3; | |
389 | } | |
390 | break; | |
391 | } | |
392 | case VIDIOCSFBUF: /* set frame buffer */ | |
393 | { | |
394 | struct video_buffer *buffer = arg; | |
395 | ||
396 | memset(&fbuf2, 0, sizeof(fbuf2)); | |
397 | fbuf2.base = buffer->base; | |
398 | fbuf2.fmt.height = buffer->height; | |
399 | fbuf2.fmt.width = buffer->width; | |
400 | switch (buffer->depth) { | |
401 | case 8: | |
402 | fbuf2.fmt.pixelformat = V4L2_PIX_FMT_RGB332; | |
403 | break; | |
404 | case 15: | |
405 | fbuf2.fmt.pixelformat = V4L2_PIX_FMT_RGB555; | |
406 | break; | |
407 | case 16: | |
408 | fbuf2.fmt.pixelformat = V4L2_PIX_FMT_RGB565; | |
409 | break; | |
410 | case 24: | |
411 | fbuf2.fmt.pixelformat = V4L2_PIX_FMT_BGR24; | |
412 | break; | |
413 | case 32: | |
414 | fbuf2.fmt.pixelformat = V4L2_PIX_FMT_BGR32; | |
415 | break; | |
416 | } | |
417 | fbuf2.fmt.bytesperline = buffer->bytesperline; | |
418 | err = drv(inode, file, VIDIOC_S_FBUF, &fbuf2); | |
419 | if (err < 0) | |
420 | dprintk("VIDIOCSFBUF / VIDIOC_S_FBUF: %d\n",err); | |
421 | break; | |
422 | } | |
423 | case VIDIOCGWIN: /* get window or capture dimensions */ | |
424 | { | |
425 | struct video_window *win = arg; | |
426 | ||
427 | fmt2 = kmalloc(sizeof(*fmt2),GFP_KERNEL); | |
428 | memset(win,0,sizeof(*win)); | |
429 | memset(fmt2,0,sizeof(*fmt2)); | |
430 | ||
431 | fmt2->type = V4L2_BUF_TYPE_VIDEO_OVERLAY; | |
432 | err = drv(inode, file, VIDIOC_G_FMT, fmt2); | |
433 | if (err < 0) | |
434 | dprintk("VIDIOCGWIN / VIDIOC_G_WIN: %d\n",err); | |
435 | if (err == 0) { | |
436 | win->x = fmt2->fmt.win.w.left; | |
437 | win->y = fmt2->fmt.win.w.top; | |
438 | win->width = fmt2->fmt.win.w.width; | |
439 | win->height = fmt2->fmt.win.w.height; | |
440 | win->chromakey = fmt2->fmt.win.chromakey; | |
441 | win->clips = NULL; | |
442 | win->clipcount = 0; | |
443 | break; | |
444 | } | |
445 | ||
446 | fmt2->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
447 | err = drv(inode, file, VIDIOC_G_FMT, fmt2); | |
448 | if (err < 0) { | |
449 | dprintk("VIDIOCGWIN / VIDIOC_G_FMT: %d\n",err); | |
450 | break; | |
451 | } | |
452 | win->x = 0; | |
453 | win->y = 0; | |
454 | win->width = fmt2->fmt.pix.width; | |
455 | win->height = fmt2->fmt.pix.height; | |
456 | win->chromakey = 0; | |
457 | win->clips = NULL; | |
458 | win->clipcount = 0; | |
459 | break; | |
460 | } | |
461 | case VIDIOCSWIN: /* set window and/or capture dimensions */ | |
462 | { | |
463 | struct video_window *win = arg; | |
464 | int err1,err2; | |
465 | ||
466 | fmt2 = kmalloc(sizeof(*fmt2),GFP_KERNEL); | |
467 | memset(fmt2,0,sizeof(*fmt2)); | |
468 | fmt2->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
469 | drv(inode, file, VIDIOC_STREAMOFF, &fmt2->type); | |
470 | err1 = drv(inode, file, VIDIOC_G_FMT, fmt2); | |
471 | if (err1 < 0) | |
472 | dprintk("VIDIOCSWIN / VIDIOC_G_FMT: %d\n",err); | |
473 | if (err1 == 0) { | |
474 | fmt2->fmt.pix.width = win->width; | |
475 | fmt2->fmt.pix.height = win->height; | |
476 | fmt2->fmt.pix.field = V4L2_FIELD_ANY; | |
477 | fmt2->fmt.pix.bytesperline = 0; | |
478 | err = drv(inode, file, VIDIOC_S_FMT, fmt2); | |
479 | if (err < 0) | |
480 | dprintk("VIDIOCSWIN / VIDIOC_S_FMT #1: %d\n", | |
481 | err); | |
482 | win->width = fmt2->fmt.pix.width; | |
483 | win->height = fmt2->fmt.pix.height; | |
484 | } | |
485 | ||
486 | memset(fmt2,0,sizeof(*fmt2)); | |
487 | fmt2->type = V4L2_BUF_TYPE_VIDEO_OVERLAY; | |
488 | fmt2->fmt.win.w.left = win->x; | |
489 | fmt2->fmt.win.w.top = win->y; | |
490 | fmt2->fmt.win.w.width = win->width; | |
491 | fmt2->fmt.win.w.height = win->height; | |
492 | fmt2->fmt.win.chromakey = win->chromakey; | |
493 | fmt2->fmt.win.clips = (void __user *)win->clips; | |
494 | fmt2->fmt.win.clipcount = win->clipcount; | |
495 | err2 = drv(inode, file, VIDIOC_S_FMT, fmt2); | |
496 | if (err2 < 0) | |
497 | dprintk("VIDIOCSWIN / VIDIOC_S_FMT #2: %d\n",err); | |
498 | ||
499 | if (err1 != 0 && err2 != 0) | |
500 | err = err1; | |
501 | break; | |
502 | } | |
503 | case VIDIOCCAPTURE: /* turn on/off preview */ | |
504 | { | |
505 | int *on = arg; | |
506 | ||
507 | if (0 == *on) { | |
508 | /* dirty hack time. But v4l1 has no STREAMOFF | |
509 | * equivalent in the API, and this one at | |
510 | * least comes close ... */ | |
511 | drv(inode, file, VIDIOC_STREAMOFF, &captype); | |
512 | } | |
513 | err = drv(inode, file, VIDIOC_OVERLAY, arg); | |
514 | if (err < 0) | |
515 | dprintk("VIDIOCCAPTURE / VIDIOC_PREVIEW: %d\n",err); | |
516 | break; | |
517 | } | |
518 | case VIDIOCGCHAN: /* get input information */ | |
519 | { | |
520 | struct video_channel *chan = arg; | |
521 | ||
522 | memset(&input2,0,sizeof(input2)); | |
523 | input2.index = chan->channel; | |
524 | err = drv(inode, file, VIDIOC_ENUMINPUT, &input2); | |
525 | if (err < 0) { | |
526 | dprintk("VIDIOCGCHAN / VIDIOC_ENUMINPUT: " | |
527 | "channel=%d err=%d\n",chan->channel,err); | |
528 | break; | |
529 | } | |
530 | chan->channel = input2.index; | |
531 | memcpy(chan->name, input2.name, | |
532 | min(sizeof(chan->name), sizeof(input2.name))); | |
533 | chan->name[sizeof(chan->name) - 1] = 0; | |
534 | chan->tuners = (input2.type == V4L2_INPUT_TYPE_TUNER) ? 1 : 0; | |
535 | chan->flags = (chan->tuners) ? VIDEO_VC_TUNER : 0; | |
536 | switch (input2.type) { | |
537 | case V4L2_INPUT_TYPE_TUNER: | |
538 | chan->type = VIDEO_TYPE_TV; | |
539 | break; | |
540 | default: | |
541 | case V4L2_INPUT_TYPE_CAMERA: | |
542 | chan->type = VIDEO_TYPE_CAMERA; | |
543 | break; | |
544 | } | |
545 | chan->norm = 0; | |
546 | err = drv(inode, file, VIDIOC_G_STD, &sid); | |
547 | if (err < 0) | |
548 | dprintk("VIDIOCGCHAN / VIDIOC_G_STD: %d\n",err); | |
549 | if (err == 0) { | |
550 | if (sid & V4L2_STD_PAL) | |
551 | chan->norm = VIDEO_MODE_PAL; | |
552 | if (sid & V4L2_STD_NTSC) | |
553 | chan->norm = VIDEO_MODE_NTSC; | |
554 | if (sid & V4L2_STD_SECAM) | |
555 | chan->norm = VIDEO_MODE_SECAM; | |
556 | } | |
557 | break; | |
558 | } | |
559 | case VIDIOCSCHAN: /* set input */ | |
560 | { | |
561 | struct video_channel *chan = arg; | |
562 | ||
563 | sid = 0; | |
564 | err = drv(inode, file, VIDIOC_S_INPUT, &chan->channel); | |
565 | if (err < 0) | |
566 | dprintk("VIDIOCSCHAN / VIDIOC_S_INPUT: %d\n",err); | |
567 | switch (chan->norm) { | |
568 | case VIDEO_MODE_PAL: | |
569 | sid = V4L2_STD_PAL; | |
570 | break; | |
571 | case VIDEO_MODE_NTSC: | |
572 | sid = V4L2_STD_NTSC; | |
573 | break; | |
574 | case VIDEO_MODE_SECAM: | |
575 | sid = V4L2_STD_SECAM; | |
576 | break; | |
577 | } | |
578 | if (0 != sid) { | |
579 | err = drv(inode, file, VIDIOC_S_STD, &sid); | |
580 | if (err < 0) | |
581 | dprintk("VIDIOCSCHAN / VIDIOC_S_STD: %d\n",err); | |
582 | } | |
583 | break; | |
584 | } | |
585 | case VIDIOCGPICT: /* get tone controls & partial capture format */ | |
586 | { | |
587 | struct video_picture *pict = arg; | |
588 | ||
589 | pict->brightness = get_v4l_control(inode, file, | |
590 | V4L2_CID_BRIGHTNESS,drv); | |
591 | pict->hue = get_v4l_control(inode, file, | |
592 | V4L2_CID_HUE, drv); | |
593 | pict->contrast = get_v4l_control(inode, file, | |
594 | V4L2_CID_CONTRAST, drv); | |
595 | pict->colour = get_v4l_control(inode, file, | |
596 | V4L2_CID_SATURATION, drv); | |
597 | pict->whiteness = get_v4l_control(inode, file, | |
598 | V4L2_CID_WHITENESS, drv); | |
599 | ||
600 | fmt2 = kmalloc(sizeof(*fmt2),GFP_KERNEL); | |
601 | memset(fmt2,0,sizeof(*fmt2)); | |
602 | fmt2->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
603 | err = drv(inode, file, VIDIOC_G_FMT, fmt2); | |
604 | if (err < 0) { | |
605 | dprintk("VIDIOCGPICT / VIDIOC_G_FMT: %d\n",err); | |
606 | break; | |
607 | } | |
608 | #if 0 /* FIXME */ | |
609 | pict->depth = fmt2->fmt.pix.depth; | |
610 | #endif | |
611 | pict->palette = pixelformat_to_palette( | |
612 | fmt2->fmt.pix.pixelformat); | |
613 | break; | |
614 | } | |
615 | case VIDIOCSPICT: /* set tone controls & partial capture format */ | |
616 | { | |
617 | struct video_picture *pict = arg; | |
618 | ||
619 | set_v4l_control(inode, file, | |
620 | V4L2_CID_BRIGHTNESS, pict->brightness, drv); | |
621 | set_v4l_control(inode, file, | |
622 | V4L2_CID_HUE, pict->hue, drv); | |
623 | set_v4l_control(inode, file, | |
624 | V4L2_CID_CONTRAST, pict->contrast, drv); | |
625 | set_v4l_control(inode, file, | |
626 | V4L2_CID_SATURATION, pict->colour, drv); | |
627 | set_v4l_control(inode, file, | |
628 | V4L2_CID_WHITENESS, pict->whiteness, drv); | |
629 | ||
630 | fmt2 = kmalloc(sizeof(*fmt2),GFP_KERNEL); | |
631 | memset(fmt2,0,sizeof(*fmt2)); | |
632 | fmt2->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
633 | err = drv(inode, file, VIDIOC_G_FMT, fmt2); | |
634 | if (err < 0) | |
635 | dprintk("VIDIOCSPICT / VIDIOC_G_FMT: %d\n",err); | |
636 | if (fmt2->fmt.pix.pixelformat != | |
637 | palette_to_pixelformat(pict->palette)) { | |
638 | fmt2->fmt.pix.pixelformat = palette_to_pixelformat( | |
639 | pict->palette); | |
640 | err = drv(inode, file, VIDIOC_S_FMT, fmt2); | |
641 | if (err < 0) | |
642 | dprintk("VIDIOCSPICT / VIDIOC_S_FMT: %d\n",err); | |
643 | } | |
644 | ||
645 | err = drv(inode, file, VIDIOC_G_FBUF, &fbuf2); | |
646 | if (err < 0) | |
647 | dprintk("VIDIOCSPICT / VIDIOC_G_FBUF: %d\n",err); | |
648 | if (fbuf2.fmt.pixelformat != | |
649 | palette_to_pixelformat(pict->palette)) { | |
650 | fbuf2.fmt.pixelformat = palette_to_pixelformat( | |
651 | pict->palette); | |
652 | err = drv(inode, file, VIDIOC_S_FBUF, &fbuf2); | |
653 | if (err < 0) | |
654 | dprintk("VIDIOCSPICT / VIDIOC_S_FBUF: %d\n",err); | |
655 | err = 0; /* likely fails for non-root */ | |
656 | } | |
657 | break; | |
658 | } | |
659 | case VIDIOCGTUNER: /* get tuner information */ | |
660 | { | |
661 | struct video_tuner *tun = arg; | |
662 | ||
663 | memset(&tun2,0,sizeof(tun2)); | |
664 | err = drv(inode, file, VIDIOC_G_TUNER, &tun2); | |
665 | if (err < 0) { | |
666 | dprintk("VIDIOCGTUNER / VIDIOC_G_TUNER: %d\n",err); | |
667 | break; | |
668 | } | |
669 | memcpy(tun->name, tun2.name, | |
670 | min(sizeof(tun->name), sizeof(tun2.name))); | |
671 | tun->name[sizeof(tun->name) - 1] = 0; | |
672 | tun->rangelow = tun2.rangelow; | |
673 | tun->rangehigh = tun2.rangehigh; | |
674 | tun->flags = 0; | |
675 | tun->mode = VIDEO_MODE_AUTO; | |
676 | ||
677 | for (i = 0; i < 64; i++) { | |
678 | memset(&std2,0,sizeof(std2)); | |
679 | std2.index = i; | |
680 | if (0 != drv(inode, file, VIDIOC_ENUMSTD, &std2)) | |
681 | break; | |
682 | if (std2.id & V4L2_STD_PAL) | |
683 | tun->flags |= VIDEO_TUNER_PAL; | |
684 | if (std2.id & V4L2_STD_NTSC) | |
685 | tun->flags |= VIDEO_TUNER_NTSC; | |
686 | if (std2.id & V4L2_STD_SECAM) | |
687 | tun->flags |= VIDEO_TUNER_SECAM; | |
688 | } | |
689 | ||
690 | err = drv(inode, file, VIDIOC_G_STD, &sid); | |
691 | if (err < 0) | |
692 | dprintk("VIDIOCGTUNER / VIDIOC_G_STD: %d\n",err); | |
693 | if (err == 0) { | |
694 | if (sid & V4L2_STD_PAL) | |
695 | tun->mode = VIDEO_MODE_PAL; | |
696 | if (sid & V4L2_STD_NTSC) | |
697 | tun->mode = VIDEO_MODE_NTSC; | |
698 | if (sid & V4L2_STD_SECAM) | |
699 | tun->mode = VIDEO_MODE_SECAM; | |
700 | } | |
701 | ||
702 | if (tun2.capability & V4L2_TUNER_CAP_LOW) | |
703 | tun->flags |= VIDEO_TUNER_LOW; | |
704 | if (tun2.rxsubchans & V4L2_TUNER_SUB_STEREO) | |
705 | tun->flags |= VIDEO_TUNER_STEREO_ON; | |
706 | tun->signal = tun2.signal; | |
707 | break; | |
708 | } | |
709 | case VIDIOCSTUNER: /* select a tuner input */ | |
710 | { | |
711 | #if 0 /* FIXME */ | |
712 | err = drv(inode, file, VIDIOC_S_INPUT, &i); | |
713 | if (err < 0) | |
714 | dprintk("VIDIOCSTUNER / VIDIOC_S_INPUT: %d\n",err); | |
715 | #else | |
716 | err = 0; | |
717 | #endif | |
718 | break; | |
719 | } | |
720 | case VIDIOCGFREQ: /* get frequency */ | |
721 | { | |
722 | int *freq = arg; | |
723 | ||
724 | freq2.tuner = 0; | |
725 | err = drv(inode, file, VIDIOC_G_FREQUENCY, &freq2); | |
726 | if (err < 0) | |
727 | dprintk("VIDIOCGFREQ / VIDIOC_G_FREQUENCY: %d\n",err); | |
728 | if (0 == err) | |
729 | *freq = freq2.frequency; | |
730 | break; | |
731 | } | |
732 | case VIDIOCSFREQ: /* set frequency */ | |
733 | { | |
734 | int *freq = arg; | |
735 | ||
736 | freq2.tuner = 0; | |
737 | drv(inode, file, VIDIOC_G_FREQUENCY, &freq2); | |
738 | freq2.frequency = *freq; | |
739 | err = drv(inode, file, VIDIOC_S_FREQUENCY, &freq2); | |
740 | if (err < 0) | |
741 | dprintk("VIDIOCSFREQ / VIDIOC_S_FREQUENCY: %d\n",err); | |
742 | break; | |
743 | } | |
744 | case VIDIOCGAUDIO: /* get audio properties/controls */ | |
745 | { | |
746 | struct video_audio *aud = arg; | |
747 | ||
748 | err = drv(inode, file, VIDIOC_G_AUDIO, &aud2); | |
749 | if (err < 0) { | |
750 | dprintk("VIDIOCGAUDIO / VIDIOC_G_AUDIO: %d\n",err); | |
751 | break; | |
752 | } | |
753 | memcpy(aud->name, aud2.name, | |
754 | min(sizeof(aud->name), sizeof(aud2.name))); | |
755 | aud->name[sizeof(aud->name) - 1] = 0; | |
756 | aud->audio = aud2.index; | |
757 | aud->flags = 0; | |
758 | i = get_v4l_control(inode, file, V4L2_CID_AUDIO_VOLUME, drv); | |
759 | if (i >= 0) { | |
760 | aud->volume = i; | |
761 | aud->flags |= VIDEO_AUDIO_VOLUME; | |
762 | } | |
763 | i = get_v4l_control(inode, file, V4L2_CID_AUDIO_BASS, drv); | |
764 | if (i >= 0) { | |
765 | aud->bass = i; | |
766 | aud->flags |= VIDEO_AUDIO_BASS; | |
767 | } | |
768 | i = get_v4l_control(inode, file, V4L2_CID_AUDIO_TREBLE, drv); | |
769 | if (i >= 0) { | |
770 | aud->treble = i; | |
771 | aud->flags |= VIDEO_AUDIO_TREBLE; | |
772 | } | |
773 | i = get_v4l_control(inode, file, V4L2_CID_AUDIO_BALANCE, drv); | |
774 | if (i >= 0) { | |
775 | aud->balance = i; | |
776 | aud->flags |= VIDEO_AUDIO_BALANCE; | |
777 | } | |
778 | i = get_v4l_control(inode, file, V4L2_CID_AUDIO_MUTE, drv); | |
779 | if (i >= 0) { | |
780 | if (i) | |
781 | aud->flags |= VIDEO_AUDIO_MUTE; | |
782 | aud->flags |= VIDEO_AUDIO_MUTABLE; | |
783 | } | |
784 | aud->step = 1; | |
785 | qctrl2.id = V4L2_CID_AUDIO_VOLUME; | |
786 | if (drv(inode, file, VIDIOC_QUERYCTRL, &qctrl2) == 0 && | |
787 | !(qctrl2.flags & V4L2_CTRL_FLAG_DISABLED)) | |
788 | aud->step = qctrl2.step; | |
789 | aud->mode = 0; | |
790 | err = drv(inode, file, VIDIOC_G_TUNER, &tun2); | |
791 | if (err < 0) { | |
792 | dprintk("VIDIOCGAUDIO / VIDIOC_G_TUNER: %d\n",err); | |
793 | err = 0; | |
794 | break; | |
795 | } | |
796 | if (tun2.rxsubchans & V4L2_TUNER_SUB_LANG2) | |
797 | aud->mode = VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2; | |
798 | else if (tun2.rxsubchans & V4L2_TUNER_SUB_STEREO) | |
799 | aud->mode = VIDEO_SOUND_STEREO; | |
800 | else if (tun2.rxsubchans & V4L2_TUNER_SUB_MONO) | |
801 | aud->mode = VIDEO_SOUND_MONO; | |
802 | break; | |
803 | } | |
804 | case VIDIOCSAUDIO: /* set audio controls */ | |
805 | { | |
806 | struct video_audio *aud = arg; | |
807 | ||
808 | memset(&aud2,0,sizeof(aud2)); | |
809 | memset(&tun2,0,sizeof(tun2)); | |
810 | ||
811 | aud2.index = aud->audio; | |
812 | err = drv(inode, file, VIDIOC_S_AUDIO, &aud2); | |
813 | if (err < 0) { | |
814 | dprintk("VIDIOCSAUDIO / VIDIOC_S_AUDIO: %d\n",err); | |
815 | break; | |
816 | } | |
817 | ||
818 | set_v4l_control(inode, file, V4L2_CID_AUDIO_VOLUME, | |
819 | aud->volume, drv); | |
820 | set_v4l_control(inode, file, V4L2_CID_AUDIO_BASS, | |
821 | aud->bass, drv); | |
822 | set_v4l_control(inode, file, V4L2_CID_AUDIO_TREBLE, | |
823 | aud->treble, drv); | |
824 | set_v4l_control(inode, file, V4L2_CID_AUDIO_BALANCE, | |
825 | aud->balance, drv); | |
826 | set_v4l_control(inode, file, V4L2_CID_AUDIO_MUTE, | |
827 | !!(aud->flags & VIDEO_AUDIO_MUTE), drv); | |
828 | ||
829 | err = drv(inode, file, VIDIOC_G_TUNER, &tun2); | |
830 | if (err < 0) | |
831 | dprintk("VIDIOCSAUDIO / VIDIOC_G_TUNER: %d\n",err); | |
832 | if (err == 0) { | |
833 | switch (aud->mode) { | |
834 | default: | |
835 | case VIDEO_SOUND_MONO: | |
836 | case VIDEO_SOUND_LANG1: | |
837 | tun2.audmode = V4L2_TUNER_MODE_MONO; | |
838 | break; | |
839 | case VIDEO_SOUND_STEREO: | |
840 | tun2.audmode = V4L2_TUNER_MODE_STEREO; | |
841 | break; | |
842 | case VIDEO_SOUND_LANG2: | |
843 | tun2.audmode = V4L2_TUNER_MODE_LANG2; | |
844 | break; | |
845 | } | |
846 | err = drv(inode, file, VIDIOC_S_TUNER, &tun2); | |
847 | if (err < 0) | |
848 | dprintk("VIDIOCSAUDIO / VIDIOC_S_TUNER: %d\n",err); | |
849 | } | |
850 | err = 0; | |
851 | break; | |
852 | } | |
853 | #if 0 | |
854 | case VIDIOCGMBUF: | |
855 | /* v4l2 drivers must implement that themself. The | |
856 | mmap() differences can't be translated fully | |
857 | transparent, thus there is no point to try that */ | |
858 | #endif | |
859 | case VIDIOCMCAPTURE: /* capture a frame */ | |
860 | { | |
861 | struct video_mmap *mm = arg; | |
862 | ||
863 | fmt2 = kmalloc(sizeof(*fmt2),GFP_KERNEL); | |
864 | memset(&buf2,0,sizeof(buf2)); | |
865 | memset(fmt2,0,sizeof(*fmt2)); | |
866 | ||
867 | fmt2->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
868 | err = drv(inode, file, VIDIOC_G_FMT, fmt2); | |
869 | if (err < 0) { | |
870 | dprintk("VIDIOCMCAPTURE / VIDIOC_G_FMT: %d\n",err); | |
871 | break; | |
872 | } | |
873 | if (mm->width != fmt2->fmt.pix.width || | |
874 | mm->height != fmt2->fmt.pix.height || | |
875 | palette_to_pixelformat(mm->format) != | |
876 | fmt2->fmt.pix.pixelformat) | |
877 | {/* New capture format... */ | |
878 | fmt2->fmt.pix.width = mm->width; | |
879 | fmt2->fmt.pix.height = mm->height; | |
880 | fmt2->fmt.pix.pixelformat = | |
881 | palette_to_pixelformat(mm->format); | |
882 | fmt2->fmt.pix.field = V4L2_FIELD_ANY; | |
883 | fmt2->fmt.pix.bytesperline = 0; | |
884 | err = drv(inode, file, VIDIOC_S_FMT, fmt2); | |
885 | if (err < 0) { | |
886 | dprintk("VIDIOCMCAPTURE / VIDIOC_S_FMT: %d\n",err); | |
887 | break; | |
888 | } | |
889 | } | |
890 | buf2.index = mm->frame; | |
891 | buf2.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
892 | err = drv(inode, file, VIDIOC_QUERYBUF, &buf2); | |
893 | if (err < 0) { | |
894 | dprintk("VIDIOCMCAPTURE / VIDIOC_QUERYBUF: %d\n",err); | |
895 | break; | |
896 | } | |
897 | err = drv(inode, file, VIDIOC_QBUF, &buf2); | |
898 | if (err < 0) { | |
899 | dprintk("VIDIOCMCAPTURE / VIDIOC_QBUF: %d\n",err); | |
900 | break; | |
901 | } | |
902 | err = drv(inode, file, VIDIOC_STREAMON, &captype); | |
903 | if (err < 0) | |
904 | dprintk("VIDIOCMCAPTURE / VIDIOC_STREAMON: %d\n",err); | |
905 | break; | |
906 | } | |
907 | case VIDIOCSYNC: /* wait for a frame */ | |
908 | { | |
909 | int *i = arg; | |
910 | ||
911 | buf2.index = *i; | |
912 | buf2.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
913 | err = drv(inode, file, VIDIOC_QUERYBUF, &buf2); | |
914 | if (err < 0) { | |
915 | /* No such buffer */ | |
916 | dprintk("VIDIOCSYNC / VIDIOC_QUERYBUF: %d\n",err); | |
917 | break; | |
918 | } | |
919 | if (!(buf2.flags & V4L2_BUF_FLAG_MAPPED)) { | |
920 | /* Buffer is not mapped */ | |
921 | err = -EINVAL; | |
922 | break; | |
923 | } | |
924 | ||
925 | /* make sure capture actually runs so we don't block forever */ | |
926 | err = drv(inode, file, VIDIOC_STREAMON, &captype); | |
927 | if (err < 0) { | |
928 | dprintk("VIDIOCSYNC / VIDIOC_STREAMON: %d\n",err); | |
929 | break; | |
930 | } | |
931 | ||
932 | /* Loop as long as the buffer is queued, but not done */ | |
933 | while ((buf2.flags & | |
934 | (V4L2_BUF_FLAG_QUEUED | V4L2_BUF_FLAG_DONE)) | |
935 | == V4L2_BUF_FLAG_QUEUED) | |
936 | { | |
937 | err = poll_one(file); | |
938 | if (err < 0 || /* error or sleep was interrupted */ | |
939 | err == 0) /* timeout? Shouldn't occur. */ | |
940 | break; | |
941 | err = drv(inode, file, VIDIOC_QUERYBUF, &buf2); | |
942 | if (err < 0) | |
943 | dprintk("VIDIOCSYNC / VIDIOC_QUERYBUF: %d\n",err); | |
944 | } | |
945 | if (!(buf2.flags & V4L2_BUF_FLAG_DONE)) /* not done */ | |
946 | break; | |
947 | do { | |
948 | err = drv(inode, file, VIDIOC_DQBUF, &buf2); | |
949 | if (err < 0) | |
950 | dprintk("VIDIOCSYNC / VIDIOC_DQBUF: %d\n",err); | |
951 | } while (err == 0 && buf2.index != *i); | |
952 | break; | |
953 | } | |
954 | ||
955 | case VIDIOCGVBIFMT: /* query VBI data capture format */ | |
956 | { | |
957 | struct vbi_format *fmt = arg; | |
958 | ||
959 | fmt2 = kmalloc(sizeof(*fmt2),GFP_KERNEL); | |
960 | memset(fmt2, 0, sizeof(*fmt2)); | |
961 | fmt2->type = V4L2_BUF_TYPE_VBI_CAPTURE; | |
962 | ||
963 | err = drv(inode, file, VIDIOC_G_FMT, fmt2); | |
964 | if (err < 0) { | |
965 | dprintk("VIDIOCGVBIFMT / VIDIOC_G_FMT: %d\n", err); | |
966 | break; | |
967 | } | |
968 | memset(fmt, 0, sizeof(*fmt)); | |
969 | fmt->samples_per_line = fmt2->fmt.vbi.samples_per_line; | |
970 | fmt->sampling_rate = fmt2->fmt.vbi.sampling_rate; | |
971 | fmt->sample_format = VIDEO_PALETTE_RAW; | |
972 | fmt->start[0] = fmt2->fmt.vbi.start[0]; | |
973 | fmt->count[0] = fmt2->fmt.vbi.count[0]; | |
974 | fmt->start[1] = fmt2->fmt.vbi.start[1]; | |
975 | fmt->count[1] = fmt2->fmt.vbi.count[1]; | |
976 | fmt->flags = fmt2->fmt.vbi.flags & 0x03; | |
977 | break; | |
978 | } | |
979 | case VIDIOCSVBIFMT: | |
980 | { | |
981 | struct vbi_format *fmt = arg; | |
982 | ||
983 | fmt2 = kmalloc(sizeof(*fmt2),GFP_KERNEL); | |
984 | memset(fmt2, 0, sizeof(*fmt2)); | |
985 | ||
986 | fmt2->type = V4L2_BUF_TYPE_VBI_CAPTURE; | |
987 | fmt2->fmt.vbi.samples_per_line = fmt->samples_per_line; | |
988 | fmt2->fmt.vbi.sampling_rate = fmt->sampling_rate; | |
989 | fmt2->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; | |
990 | fmt2->fmt.vbi.start[0] = fmt->start[0]; | |
991 | fmt2->fmt.vbi.count[0] = fmt->count[0]; | |
992 | fmt2->fmt.vbi.start[1] = fmt->start[1]; | |
993 | fmt2->fmt.vbi.count[1] = fmt->count[1]; | |
994 | fmt2->fmt.vbi.flags = fmt->flags; | |
995 | err = drv(inode, file, VIDIOC_TRY_FMT, fmt2); | |
996 | if (err < 0) { | |
997 | dprintk("VIDIOCSVBIFMT / VIDIOC_TRY_FMT: %d\n", err); | |
998 | break; | |
999 | } | |
1000 | ||
1001 | if (fmt2->fmt.vbi.samples_per_line != fmt->samples_per_line || | |
1002 | fmt2->fmt.vbi.sampling_rate != fmt->sampling_rate || | |
1003 | VIDEO_PALETTE_RAW != fmt->sample_format || | |
1004 | fmt2->fmt.vbi.start[0] != fmt->start[0] || | |
1005 | fmt2->fmt.vbi.count[0] != fmt->count[0] || | |
1006 | fmt2->fmt.vbi.start[1] != fmt->start[1] || | |
1007 | fmt2->fmt.vbi.count[1] != fmt->count[1] || | |
1008 | fmt2->fmt.vbi.flags != fmt->flags) { | |
1009 | err = -EINVAL; | |
1010 | break; | |
1011 | } | |
1012 | err = drv(inode, file, VIDIOC_S_FMT, fmt2); | |
1013 | if (err < 0) | |
1014 | dprintk("VIDIOCSVBIFMT / VIDIOC_S_FMT: %d\n", err); | |
1015 | break; | |
1016 | } | |
1017 | ||
1018 | default: | |
1019 | err = -ENOIOCTLCMD; | |
1020 | break; | |
1021 | } | |
1022 | ||
1023 | if (cap2) | |
1024 | kfree(cap2); | |
1025 | if (fmt2) | |
1026 | kfree(fmt2); | |
1027 | return err; | |
1028 | } | |
1029 | ||
1030 | EXPORT_SYMBOL(v4l_compat_translate_ioctl); | |
1031 | ||
1032 | /* | |
1033 | * Local variables: | |
1034 | * c-basic-offset: 8 | |
1035 | * End: | |
1036 | */ |