Remove obsolete #include <linux/config.h>
[linux-2.6.git] / drivers / media / video / v4l1-compat.c
1 /*
2  *
3  *      Video for Linux Two
4  *      Backward Compatibility Layer
5  *
6  *      Support subroutines for providing V4L2 drivers with backward
7  *      compatibility with applications using the old API.
8  *
9  *      This program is free software; you can redistribute it and/or
10  *      modify it under the terms of the GNU General Public License
11  *      as published by the Free Software Foundation; either version
12  *      2 of the License, or (at your option) any later version.
13  *
14  * Author:      Bill Dirks <bdirks@pacbell.net>
15  *              et al.
16  *
17  */
18
19
20 #include <linux/init.h>
21 #include <linux/module.h>
22 #include <linux/moduleparam.h>
23 #include <linux/types.h>
24 #include <linux/kernel.h>
25 #include <linux/sched.h>
26 #include <linux/smp_lock.h>
27 #include <linux/mm.h>
28 #include <linux/fs.h>
29 #include <linux/file.h>
30 #include <linux/string.h>
31 #include <linux/errno.h>
32 #include <linux/slab.h>
33 #include <linux/videodev.h>
34 #include <media/v4l2-common.h>
35
36 #include <asm/uaccess.h>
37 #include <asm/system.h>
38 #include <asm/pgtable.h>
39
40 #ifdef CONFIG_KMOD
41 #include <linux/kmod.h>
42 #endif
43
44 static unsigned int debug  = 0;
45 module_param(debug, int, 0644);
46 MODULE_PARM_DESC(debug,"enable debug messages");
47 MODULE_AUTHOR("Bill Dirks");
48 MODULE_DESCRIPTION("v4l(1) compatibility layer for v4l2 drivers.");
49 MODULE_LICENSE("GPL");
50
51 #define dprintk(fmt, arg...)    if (debug) \
52         printk(KERN_DEBUG "v4l1-compat: " fmt , ## arg)
53
54 /*
55  *      I O C T L   T R A N S L A T I O N
56  *
57  *      From here on down is the code for translating the numerous
58  *      ioctl commands from the old API to the new API.
59  */
60
61 static int
62 get_v4l_control(struct inode            *inode,
63                 struct file             *file,
64                 int                     cid,
65                 v4l2_kioctl             drv)
66 {
67         struct v4l2_queryctrl   qctrl2;
68         struct v4l2_control     ctrl2;
69         int                     err;
70
71         qctrl2.id = cid;
72         err = drv(inode, file, VIDIOC_QUERYCTRL, &qctrl2);
73         if (err < 0)
74                 dprintk("VIDIOC_QUERYCTRL: %d\n",err);
75         if (err == 0 &&
76             !(qctrl2.flags & V4L2_CTRL_FLAG_DISABLED))
77         {
78                 ctrl2.id = qctrl2.id;
79                 err = drv(inode, file, VIDIOC_G_CTRL, &ctrl2);
80                 if (err < 0) {
81                         dprintk("VIDIOC_G_CTRL: %d\n",err);
82                         return 0;
83                 }
84                 return ((ctrl2.value - qctrl2.minimum) * 65535
85                          + (qctrl2.maximum - qctrl2.minimum) / 2)
86                         / (qctrl2.maximum - qctrl2.minimum);
87         }
88         return 0;
89 }
90
91 static int
92 set_v4l_control(struct inode            *inode,
93                 struct file             *file,
94                 int                     cid,
95                 int                     value,
96                 v4l2_kioctl             drv)
97 {
98         struct v4l2_queryctrl   qctrl2;
99         struct v4l2_control     ctrl2;
100         int                     err;
101
102         qctrl2.id = cid;
103         err = drv(inode, file, VIDIOC_QUERYCTRL, &qctrl2);
104         if (err < 0)
105                 dprintk("VIDIOC_QUERYCTRL: %d\n",err);
106         if (err == 0 &&
107             !(qctrl2.flags & V4L2_CTRL_FLAG_DISABLED) &&
108             !(qctrl2.flags & V4L2_CTRL_FLAG_GRABBED))
109         {
110                 if (value < 0)
111                         value = 0;
112                 if (value > 65535)
113                         value = 65535;
114                 if (value && qctrl2.type == V4L2_CTRL_TYPE_BOOLEAN)
115                         value = 65535;
116                 ctrl2.id = qctrl2.id;
117                 ctrl2.value =
118                         (value * (qctrl2.maximum - qctrl2.minimum)
119                          + 32767)
120                         / 65535;
121                 ctrl2.value += qctrl2.minimum;
122                 err = drv(inode, file, VIDIOC_S_CTRL, &ctrl2);
123                 if (err < 0)
124                         dprintk("VIDIOC_S_CTRL: %d\n",err);
125         }
126         return 0;
127 }
128
129 /* ----------------------------------------------------------------- */
130
131 static int palette2pixelformat[] = {
132         [VIDEO_PALETTE_GREY]    = V4L2_PIX_FMT_GREY,
133         [VIDEO_PALETTE_RGB555]  = V4L2_PIX_FMT_RGB555,
134         [VIDEO_PALETTE_RGB565]  = V4L2_PIX_FMT_RGB565,
135         [VIDEO_PALETTE_RGB24]   = V4L2_PIX_FMT_BGR24,
136         [VIDEO_PALETTE_RGB32]   = V4L2_PIX_FMT_BGR32,
137         /* yuv packed pixel */
138         [VIDEO_PALETTE_YUYV]    = V4L2_PIX_FMT_YUYV,
139         [VIDEO_PALETTE_YUV422]  = V4L2_PIX_FMT_YUYV,
140         [VIDEO_PALETTE_UYVY]    = V4L2_PIX_FMT_UYVY,
141         /* yuv planar */
142         [VIDEO_PALETTE_YUV410P] = V4L2_PIX_FMT_YUV410,
143         [VIDEO_PALETTE_YUV420]  = V4L2_PIX_FMT_YUV420,
144         [VIDEO_PALETTE_YUV420P] = V4L2_PIX_FMT_YUV420,
145         [VIDEO_PALETTE_YUV411P] = V4L2_PIX_FMT_YUV411P,
146         [VIDEO_PALETTE_YUV422P] = V4L2_PIX_FMT_YUV422P,
147 };
148
149 static unsigned int
150 palette_to_pixelformat(unsigned int palette)
151 {
152         if (palette < ARRAY_SIZE(palette2pixelformat))
153                 return palette2pixelformat[palette];
154         else
155                 return 0;
156 }
157
158 static unsigned int
159 pixelformat_to_palette(int pixelformat)
160 {
161         int     palette = 0;
162         switch (pixelformat)
163         {
164         case V4L2_PIX_FMT_GREY:
165                 palette = VIDEO_PALETTE_GREY;
166                 break;
167         case V4L2_PIX_FMT_RGB555:
168                 palette = VIDEO_PALETTE_RGB555;
169                 break;
170         case V4L2_PIX_FMT_RGB565:
171                 palette = VIDEO_PALETTE_RGB565;
172                 break;
173         case V4L2_PIX_FMT_BGR24:
174                 palette = VIDEO_PALETTE_RGB24;
175                 break;
176         case V4L2_PIX_FMT_BGR32:
177                 palette = VIDEO_PALETTE_RGB32;
178                 break;
179         /* yuv packed pixel */
180         case V4L2_PIX_FMT_YUYV:
181                 palette = VIDEO_PALETTE_YUYV;
182                 break;
183         case V4L2_PIX_FMT_UYVY:
184                 palette = VIDEO_PALETTE_UYVY;
185                 break;
186         /* yuv planar */
187         case V4L2_PIX_FMT_YUV410:
188                 palette = VIDEO_PALETTE_YUV420;
189                 break;
190         case V4L2_PIX_FMT_YUV420:
191                 palette = VIDEO_PALETTE_YUV420;
192                 break;
193         case V4L2_PIX_FMT_YUV411P:
194                 palette = VIDEO_PALETTE_YUV411P;
195                 break;
196         case V4L2_PIX_FMT_YUV422P:
197                 palette = VIDEO_PALETTE_YUV422P;
198                 break;
199         }
200         return palette;
201 }
202
203 /* ----------------------------------------------------------------- */
204
205 static int poll_one(struct file *file)
206 {
207         int retval = 1;
208         poll_table *table;
209         struct poll_wqueues pwq;
210
211         poll_initwait(&pwq);
212         table = &pwq.pt;
213         for (;;) {
214                 int mask;
215                 set_current_state(TASK_INTERRUPTIBLE);
216                 mask = file->f_op->poll(file, table);
217                 if (mask & POLLIN)
218                         break;
219                 table = NULL;
220                 if (signal_pending(current)) {
221                         retval = -ERESTARTSYS;
222                         break;
223                 }
224                 schedule();
225         }
226         set_current_state(TASK_RUNNING);
227         poll_freewait(&pwq);
228         return retval;
229 }
230
231 static int count_inputs(struct inode         *inode,
232                         struct file          *file,
233                         v4l2_kioctl          drv)
234 {
235         struct v4l2_input input2;
236         int i;
237
238         for (i = 0;; i++) {
239                 memset(&input2,0,sizeof(input2));
240                 input2.index = i;
241                 if (0 != drv(inode,file,VIDIOC_ENUMINPUT, &input2))
242                         break;
243         }
244         return i;
245 }
246
247 static int check_size(struct inode         *inode,
248                       struct file          *file,
249                       v4l2_kioctl          drv,
250                       int *maxw, int *maxh)
251 {
252         struct v4l2_fmtdesc desc2;
253         struct v4l2_format  fmt2;
254
255         memset(&desc2,0,sizeof(desc2));
256         memset(&fmt2,0,sizeof(fmt2));
257
258         desc2.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
259         if (0 != drv(inode,file,VIDIOC_ENUM_FMT, &desc2))
260                 goto done;
261
262         fmt2.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
263         fmt2.fmt.pix.width       = 10000;
264         fmt2.fmt.pix.height      = 10000;
265         fmt2.fmt.pix.pixelformat = desc2.pixelformat;
266         if (0 != drv(inode,file,VIDIOC_TRY_FMT, &fmt2))
267                 goto done;
268
269         *maxw = fmt2.fmt.pix.width;
270         *maxh = fmt2.fmt.pix.height;
271
272  done:
273         return 0;
274 }
275
276 /* ----------------------------------------------------------------- */
277
278 /*
279  *      This function is exported.
280  */
281 int
282 v4l_compat_translate_ioctl(struct inode         *inode,
283                            struct file          *file,
284                            int                  cmd,
285                            void                 *arg,
286                            v4l2_kioctl          drv)
287 {
288         struct v4l2_capability  *cap2 = NULL;
289         struct v4l2_format      *fmt2 = NULL;
290         enum v4l2_buf_type      captype = V4L2_BUF_TYPE_VIDEO_CAPTURE;
291
292         struct v4l2_framebuffer fbuf2;
293         struct v4l2_input       input2;
294         struct v4l2_tuner       tun2;
295         struct v4l2_standard    std2;
296         struct v4l2_frequency   freq2;
297         struct v4l2_audio       aud2;
298         struct v4l2_queryctrl   qctrl2;
299         struct v4l2_buffer      buf2;
300         v4l2_std_id             sid;
301         int i, err = 0;
302
303         switch (cmd) {
304         case VIDIOCGCAP:        /* capability */
305         {
306                 struct video_capability *cap = arg;
307
308                 cap2 = kzalloc(sizeof(*cap2),GFP_KERNEL);
309                 memset(cap, 0, sizeof(*cap));
310                 memset(&fbuf2, 0, sizeof(fbuf2));
311
312                 err = drv(inode, file, VIDIOC_QUERYCAP, cap2);
313                 if (err < 0) {
314                         dprintk("VIDIOCGCAP / VIDIOC_QUERYCAP: %d\n",err);
315                         break;
316                 }
317                 if (cap2->capabilities & V4L2_CAP_VIDEO_OVERLAY) {
318                         err = drv(inode, file, VIDIOC_G_FBUF, &fbuf2);
319                         if (err < 0) {
320                                 dprintk("VIDIOCGCAP / VIDIOC_G_FBUF: %d\n",err);
321                                 memset(&fbuf2, 0, sizeof(fbuf2));
322                         }
323                         err = 0;
324                 }
325
326                 memcpy(cap->name, cap2->card,
327                        min(sizeof(cap->name), sizeof(cap2->card)));
328                 cap->name[sizeof(cap->name) - 1] = 0;
329                 if (cap2->capabilities & V4L2_CAP_VIDEO_CAPTURE)
330                         cap->type |= VID_TYPE_CAPTURE;
331                 if (cap2->capabilities & V4L2_CAP_TUNER)
332                         cap->type |= VID_TYPE_TUNER;
333                 if (cap2->capabilities & V4L2_CAP_VBI_CAPTURE)
334                         cap->type |= VID_TYPE_TELETEXT;
335                 if (cap2->capabilities & V4L2_CAP_VIDEO_OVERLAY)
336                         cap->type |= VID_TYPE_OVERLAY;
337                 if (fbuf2.capability & V4L2_FBUF_CAP_LIST_CLIPPING)
338                         cap->type |= VID_TYPE_CLIPPING;
339
340                 cap->channels  = count_inputs(inode,file,drv);
341                 check_size(inode,file,drv,
342                            &cap->maxwidth,&cap->maxheight);
343                 cap->audios    =  0; /* FIXME */
344                 cap->minwidth  = 48; /* FIXME */
345                 cap->minheight = 32; /* FIXME */
346                 break;
347         }
348         case VIDIOCGFBUF: /*  get frame buffer  */
349         {
350                 struct video_buffer     *buffer = arg;
351
352                 err = drv(inode, file, VIDIOC_G_FBUF, &fbuf2);
353                 if (err < 0) {
354                         dprintk("VIDIOCGFBUF / VIDIOC_G_FBUF: %d\n",err);
355                         break;
356                 }
357                 buffer->base   = fbuf2.base;
358                 buffer->height = fbuf2.fmt.height;
359                 buffer->width  = fbuf2.fmt.width;
360
361                 switch (fbuf2.fmt.pixelformat) {
362                 case V4L2_PIX_FMT_RGB332:
363                         buffer->depth = 8;
364                                 break;
365                 case V4L2_PIX_FMT_RGB555:
366                         buffer->depth = 15;
367                         break;
368                 case V4L2_PIX_FMT_RGB565:
369                         buffer->depth = 16;
370                         break;
371                 case V4L2_PIX_FMT_BGR24:
372                         buffer->depth = 24;
373                         break;
374                 case V4L2_PIX_FMT_BGR32:
375                         buffer->depth = 32;
376                         break;
377                 default:
378                         buffer->depth = 0;
379                 }
380                 if (0 != fbuf2.fmt.bytesperline)
381                         buffer->bytesperline = fbuf2.fmt.bytesperline;
382                 else {
383                         buffer->bytesperline =
384                                 (buffer->width * buffer->depth + 7) & 7;
385                         buffer->bytesperline >>= 3;
386                 }
387                 break;
388         }
389         case VIDIOCSFBUF: /*  set frame buffer  */
390         {
391                 struct video_buffer     *buffer = arg;
392
393                 memset(&fbuf2, 0, sizeof(fbuf2));
394                 fbuf2.base       = buffer->base;
395                 fbuf2.fmt.height = buffer->height;
396                 fbuf2.fmt.width  = buffer->width;
397                 switch (buffer->depth) {
398                 case 8:
399                         fbuf2.fmt.pixelformat = V4L2_PIX_FMT_RGB332;
400                         break;
401                 case 15:
402                         fbuf2.fmt.pixelformat = V4L2_PIX_FMT_RGB555;
403                         break;
404                 case 16:
405                         fbuf2.fmt.pixelformat = V4L2_PIX_FMT_RGB565;
406                         break;
407                 case 24:
408                         fbuf2.fmt.pixelformat = V4L2_PIX_FMT_BGR24;
409                         break;
410                 case 32:
411                         fbuf2.fmt.pixelformat = V4L2_PIX_FMT_BGR32;
412                         break;
413                 }
414                 fbuf2.fmt.bytesperline = buffer->bytesperline;
415                 err = drv(inode, file, VIDIOC_S_FBUF, &fbuf2);
416                 if (err < 0)
417                         dprintk("VIDIOCSFBUF / VIDIOC_S_FBUF: %d\n",err);
418                 break;
419         }
420         case VIDIOCGWIN: /*  get window or capture dimensions  */
421         {
422                 struct video_window     *win = arg;
423
424                 fmt2 = kzalloc(sizeof(*fmt2),GFP_KERNEL);
425                 memset(win,0,sizeof(*win));
426
427                 fmt2->type = V4L2_BUF_TYPE_VIDEO_OVERLAY;
428                 err = drv(inode, file, VIDIOC_G_FMT, fmt2);
429                 if (err < 0)
430                         dprintk("VIDIOCGWIN / VIDIOC_G_WIN: %d\n",err);
431                 if (err == 0) {
432                         win->x         = fmt2->fmt.win.w.left;
433                         win->y         = fmt2->fmt.win.w.top;
434                         win->width     = fmt2->fmt.win.w.width;
435                         win->height    = fmt2->fmt.win.w.height;
436                         win->chromakey = fmt2->fmt.win.chromakey;
437                         win->clips     = NULL;
438                         win->clipcount = 0;
439                         break;
440                 }
441
442                 fmt2->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
443                 err = drv(inode, file, VIDIOC_G_FMT, fmt2);
444                 if (err < 0) {
445                         dprintk("VIDIOCGWIN / VIDIOC_G_FMT: %d\n",err);
446                         break;
447                 }
448                 win->x         = 0;
449                 win->y         = 0;
450                 win->width     = fmt2->fmt.pix.width;
451                 win->height    = fmt2->fmt.pix.height;
452                 win->chromakey = 0;
453                 win->clips     = NULL;
454                 win->clipcount = 0;
455                 break;
456         }
457         case VIDIOCSWIN: /*  set window and/or capture dimensions  */
458         {
459                 struct video_window     *win = arg;
460                 int err1,err2;
461
462                 fmt2 = kzalloc(sizeof(*fmt2),GFP_KERNEL);
463                 fmt2->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
464                 drv(inode, file, VIDIOC_STREAMOFF, &fmt2->type);
465                 err1 = drv(inode, file, VIDIOC_G_FMT, fmt2);
466                 if (err1 < 0)
467                         dprintk("VIDIOCSWIN / VIDIOC_G_FMT: %d\n",err);
468                 if (err1 == 0) {
469                         fmt2->fmt.pix.width  = win->width;
470                         fmt2->fmt.pix.height = win->height;
471                         fmt2->fmt.pix.field  = V4L2_FIELD_ANY;
472                         fmt2->fmt.pix.bytesperline = 0;
473                         err = drv(inode, file, VIDIOC_S_FMT, fmt2);
474                         if (err < 0)
475                                 dprintk("VIDIOCSWIN / VIDIOC_S_FMT #1: %d\n",
476                                         err);
477                         win->width  = fmt2->fmt.pix.width;
478                         win->height = fmt2->fmt.pix.height;
479                 }
480
481                 memset(fmt2,0,sizeof(*fmt2));
482                 fmt2->type = V4L2_BUF_TYPE_VIDEO_OVERLAY;
483                 fmt2->fmt.win.w.left    = win->x;
484                 fmt2->fmt.win.w.top     = win->y;
485                 fmt2->fmt.win.w.width   = win->width;
486                 fmt2->fmt.win.w.height  = win->height;
487                 fmt2->fmt.win.chromakey = win->chromakey;
488                 fmt2->fmt.win.clips     = (void __user *)win->clips;
489                 fmt2->fmt.win.clipcount = win->clipcount;
490                 err2 = drv(inode, file, VIDIOC_S_FMT, fmt2);
491                 if (err2 < 0)
492                         dprintk("VIDIOCSWIN / VIDIOC_S_FMT #2: %d\n",err);
493
494                 if (err1 != 0 && err2 != 0)
495                         err = err1;
496                 break;
497         }
498         case VIDIOCCAPTURE: /*  turn on/off preview  */
499         {
500                 int *on = arg;
501
502                 if (0 == *on) {
503                         /* dirty hack time.  But v4l1 has no STREAMOFF
504                          * equivalent in the API, and this one at
505                          * least comes close ... */
506                         drv(inode, file, VIDIOC_STREAMOFF, &captype);
507                 }
508                 err = drv(inode, file, VIDIOC_OVERLAY, arg);
509                 if (err < 0)
510                         dprintk("VIDIOCCAPTURE / VIDIOC_PREVIEW: %d\n",err);
511                 break;
512         }
513         case VIDIOCGCHAN: /*  get input information  */
514         {
515                 struct video_channel    *chan = arg;
516
517                 memset(&input2,0,sizeof(input2));
518                 input2.index = chan->channel;
519                 err = drv(inode, file, VIDIOC_ENUMINPUT, &input2);
520                 if (err < 0) {
521                         dprintk("VIDIOCGCHAN / VIDIOC_ENUMINPUT: "
522                                 "channel=%d err=%d\n",chan->channel,err);
523                         break;
524                 }
525                 chan->channel = input2.index;
526                 memcpy(chan->name, input2.name,
527                        min(sizeof(chan->name), sizeof(input2.name)));
528                 chan->name[sizeof(chan->name) - 1] = 0;
529                 chan->tuners = (input2.type == V4L2_INPUT_TYPE_TUNER) ? 1 : 0;
530                 chan->flags = (chan->tuners) ? VIDEO_VC_TUNER : 0;
531                 switch (input2.type) {
532                 case V4L2_INPUT_TYPE_TUNER:
533                         chan->type = VIDEO_TYPE_TV;
534                         break;
535                 default:
536                 case V4L2_INPUT_TYPE_CAMERA:
537                         chan->type = VIDEO_TYPE_CAMERA;
538                         break;
539                 }
540                 chan->norm = 0;
541                 err = drv(inode, file, VIDIOC_G_STD, &sid);
542                 if (err < 0)
543                         dprintk("VIDIOCGCHAN / VIDIOC_G_STD: %d\n",err);
544                 if (err == 0) {
545                         if (sid & V4L2_STD_PAL)
546                                 chan->norm = VIDEO_MODE_PAL;
547                         if (sid & V4L2_STD_NTSC)
548                                 chan->norm = VIDEO_MODE_NTSC;
549                         if (sid & V4L2_STD_SECAM)
550                                 chan->norm = VIDEO_MODE_SECAM;
551                 }
552                 break;
553         }
554         case VIDIOCSCHAN: /*  set input  */
555         {
556                 struct video_channel *chan = arg;
557
558                 sid = 0;
559                 err = drv(inode, file, VIDIOC_S_INPUT, &chan->channel);
560                 if (err < 0)
561                         dprintk("VIDIOCSCHAN / VIDIOC_S_INPUT: %d\n",err);
562                 switch (chan->norm) {
563                 case VIDEO_MODE_PAL:
564                         sid = V4L2_STD_PAL;
565                         break;
566                 case VIDEO_MODE_NTSC:
567                         sid = V4L2_STD_NTSC;
568                         break;
569                 case VIDEO_MODE_SECAM:
570                         sid = V4L2_STD_SECAM;
571                         break;
572                 }
573                 if (0 != sid) {
574                         err = drv(inode, file, VIDIOC_S_STD, &sid);
575                         if (err < 0)
576                                 dprintk("VIDIOCSCHAN / VIDIOC_S_STD: %d\n",err);
577                 }
578                 break;
579         }
580         case VIDIOCGPICT: /*  get tone controls & partial capture format  */
581         {
582                 struct video_picture    *pict = arg;
583
584                 pict->brightness = get_v4l_control(inode, file,
585                                                    V4L2_CID_BRIGHTNESS,drv);
586                 pict->hue = get_v4l_control(inode, file,
587                                             V4L2_CID_HUE, drv);
588                 pict->contrast = get_v4l_control(inode, file,
589                                                  V4L2_CID_CONTRAST, drv);
590                 pict->colour = get_v4l_control(inode, file,
591                                                V4L2_CID_SATURATION, drv);
592                 pict->whiteness = get_v4l_control(inode, file,
593                                                   V4L2_CID_WHITENESS, drv);
594
595                 fmt2 = kzalloc(sizeof(*fmt2),GFP_KERNEL);
596                 fmt2->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
597                 err = drv(inode, file, VIDIOC_G_FMT, fmt2);
598                 if (err < 0) {
599                         dprintk("VIDIOCGPICT / VIDIOC_G_FMT: %d\n",err);
600                         break;
601                 }
602                 pict->palette = pixelformat_to_palette(
603                         fmt2->fmt.pix.pixelformat);
604                 break;
605         }
606         case VIDIOCSPICT: /*  set tone controls & partial capture format  */
607         {
608                 struct video_picture    *pict = arg;
609
610                 set_v4l_control(inode, file,
611                                 V4L2_CID_BRIGHTNESS, pict->brightness, drv);
612                 set_v4l_control(inode, file,
613                                 V4L2_CID_HUE, pict->hue, drv);
614                 set_v4l_control(inode, file,
615                                 V4L2_CID_CONTRAST, pict->contrast, drv);
616                 set_v4l_control(inode, file,
617                                 V4L2_CID_SATURATION, pict->colour, drv);
618                 set_v4l_control(inode, file,
619                                 V4L2_CID_WHITENESS, pict->whiteness, drv);
620
621                 fmt2 = kzalloc(sizeof(*fmt2),GFP_KERNEL);
622                 fmt2->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
623                 err = drv(inode, file, VIDIOC_G_FMT, fmt2);
624                 if (err < 0)
625                         dprintk("VIDIOCSPICT / VIDIOC_G_FMT: %d\n",err);
626                 if (fmt2->fmt.pix.pixelformat !=
627                     palette_to_pixelformat(pict->palette)) {
628                         fmt2->fmt.pix.pixelformat = palette_to_pixelformat(
629                                 pict->palette);
630                         err = drv(inode, file, VIDIOC_S_FMT, fmt2);
631                         if (err < 0)
632                                 dprintk("VIDIOCSPICT / VIDIOC_S_FMT: %d\n",err);
633                 }
634
635                 err = drv(inode, file, VIDIOC_G_FBUF, &fbuf2);
636                 if (err < 0)
637                         dprintk("VIDIOCSPICT / VIDIOC_G_FBUF: %d\n",err);
638                 if (fbuf2.fmt.pixelformat !=
639                     palette_to_pixelformat(pict->palette)) {
640                         fbuf2.fmt.pixelformat = palette_to_pixelformat(
641                                 pict->palette);
642                         err = drv(inode, file, VIDIOC_S_FBUF, &fbuf2);
643                         if (err < 0)
644                                 dprintk("VIDIOCSPICT / VIDIOC_S_FBUF: %d\n",err);
645                         err = 0; /* likely fails for non-root */
646                 }
647                 break;
648         }
649         case VIDIOCGTUNER: /*  get tuner information  */
650         {
651                 struct video_tuner      *tun = arg;
652
653                 memset(&tun2,0,sizeof(tun2));
654                 err = drv(inode, file, VIDIOC_G_TUNER, &tun2);
655                 if (err < 0) {
656                         dprintk("VIDIOCGTUNER / VIDIOC_G_TUNER: %d\n",err);
657                         break;
658                 }
659                 memcpy(tun->name, tun2.name,
660                        min(sizeof(tun->name), sizeof(tun2.name)));
661                 tun->name[sizeof(tun->name) - 1] = 0;
662                 tun->rangelow = tun2.rangelow;
663                 tun->rangehigh = tun2.rangehigh;
664                 tun->flags = 0;
665                 tun->mode = VIDEO_MODE_AUTO;
666
667                 for (i = 0; i < 64; i++) {
668                         memset(&std2,0,sizeof(std2));
669                         std2.index = i;
670                         if (0 != drv(inode, file, VIDIOC_ENUMSTD, &std2))
671                                 break;
672                         if (std2.id & V4L2_STD_PAL)
673                                 tun->flags |= VIDEO_TUNER_PAL;
674                         if (std2.id & V4L2_STD_NTSC)
675                                 tun->flags |= VIDEO_TUNER_NTSC;
676                         if (std2.id & V4L2_STD_SECAM)
677                                 tun->flags |= VIDEO_TUNER_SECAM;
678                 }
679
680                 err = drv(inode, file, VIDIOC_G_STD, &sid);
681                 if (err < 0)
682                         dprintk("VIDIOCGTUNER / VIDIOC_G_STD: %d\n",err);
683                 if (err == 0) {
684                         if (sid & V4L2_STD_PAL)
685                                 tun->mode = VIDEO_MODE_PAL;
686                         if (sid & V4L2_STD_NTSC)
687                                 tun->mode = VIDEO_MODE_NTSC;
688                         if (sid & V4L2_STD_SECAM)
689                                 tun->mode = VIDEO_MODE_SECAM;
690                 }
691
692                 if (tun2.capability & V4L2_TUNER_CAP_LOW)
693                         tun->flags |= VIDEO_TUNER_LOW;
694                 if (tun2.rxsubchans & V4L2_TUNER_SUB_STEREO)
695                         tun->flags |= VIDEO_TUNER_STEREO_ON;
696                 tun->signal = tun2.signal;
697                 break;
698         }
699         case VIDIOCSTUNER: /*  select a tuner input  */
700         {
701                 err = 0;
702                 break;
703         }
704         case VIDIOCGFREQ: /*  get frequency  */
705         {
706                 unsigned long *freq = arg;
707
708                 freq2.tuner = 0;
709                 err = drv(inode, file, VIDIOC_G_FREQUENCY, &freq2);
710                 if (err < 0)
711                         dprintk("VIDIOCGFREQ / VIDIOC_G_FREQUENCY: %d\n",err);
712                 if (0 == err)
713                         *freq = freq2.frequency;
714                 break;
715         }
716         case VIDIOCSFREQ: /*  set frequency  */
717         {
718                 unsigned long *freq = arg;
719
720                 freq2.tuner = 0;
721                 drv(inode, file, VIDIOC_G_FREQUENCY, &freq2);
722                 freq2.frequency = *freq;
723                 err = drv(inode, file, VIDIOC_S_FREQUENCY, &freq2);
724                 if (err < 0)
725                         dprintk("VIDIOCSFREQ / VIDIOC_S_FREQUENCY: %d\n",err);
726                 break;
727         }
728         case VIDIOCGAUDIO: /*  get audio properties/controls  */
729         {
730                 struct video_audio      *aud = arg;
731
732                 err = drv(inode, file, VIDIOC_G_AUDIO, &aud2);
733                 if (err < 0) {
734                         dprintk("VIDIOCGAUDIO / VIDIOC_G_AUDIO: %d\n",err);
735                         break;
736                 }
737                 memcpy(aud->name, aud2.name,
738                        min(sizeof(aud->name), sizeof(aud2.name)));
739                 aud->name[sizeof(aud->name) - 1] = 0;
740                 aud->audio = aud2.index;
741                 aud->flags = 0;
742                 i = get_v4l_control(inode, file, V4L2_CID_AUDIO_VOLUME, drv);
743                 if (i >= 0) {
744                         aud->volume = i;
745                         aud->flags |= VIDEO_AUDIO_VOLUME;
746                 }
747                 i = get_v4l_control(inode, file, V4L2_CID_AUDIO_BASS, drv);
748                 if (i >= 0) {
749                         aud->bass = i;
750                         aud->flags |= VIDEO_AUDIO_BASS;
751                 }
752                 i = get_v4l_control(inode, file, V4L2_CID_AUDIO_TREBLE, drv);
753                 if (i >= 0) {
754                         aud->treble = i;
755                         aud->flags |= VIDEO_AUDIO_TREBLE;
756                 }
757                 i = get_v4l_control(inode, file, V4L2_CID_AUDIO_BALANCE, drv);
758                 if (i >= 0) {
759                         aud->balance = i;
760                         aud->flags |= VIDEO_AUDIO_BALANCE;
761                 }
762                 i = get_v4l_control(inode, file, V4L2_CID_AUDIO_MUTE, drv);
763                 if (i >= 0) {
764                         if (i)
765                                 aud->flags |= VIDEO_AUDIO_MUTE;
766                         aud->flags |= VIDEO_AUDIO_MUTABLE;
767                 }
768                 aud->step = 1;
769                 qctrl2.id = V4L2_CID_AUDIO_VOLUME;
770                 if (drv(inode, file, VIDIOC_QUERYCTRL, &qctrl2) == 0 &&
771                     !(qctrl2.flags & V4L2_CTRL_FLAG_DISABLED))
772                         aud->step = qctrl2.step;
773                 aud->mode = 0;
774
775                 memset(&tun2,0,sizeof(tun2));
776                 err = drv(inode, file, VIDIOC_G_TUNER, &tun2);
777                 if (err < 0) {
778                         dprintk("VIDIOCGAUDIO / VIDIOC_G_TUNER: %d\n",err);
779                         err = 0;
780                         break;
781                 }
782
783                 if (tun2.rxsubchans & V4L2_TUNER_SUB_LANG2)
784                         aud->mode = VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
785                 else if (tun2.rxsubchans & V4L2_TUNER_SUB_STEREO)
786                         aud->mode = VIDEO_SOUND_STEREO;
787                 else if (tun2.rxsubchans & V4L2_TUNER_SUB_MONO)
788                         aud->mode = VIDEO_SOUND_MONO;
789                 break;
790         }
791         case VIDIOCSAUDIO: /*  set audio controls  */
792         {
793                 struct video_audio      *aud = arg;
794
795                 memset(&aud2,0,sizeof(aud2));
796                 memset(&tun2,0,sizeof(tun2));
797
798                 aud2.index = aud->audio;
799                 err = drv(inode, file, VIDIOC_S_AUDIO, &aud2);
800                 if (err < 0) {
801                         dprintk("VIDIOCSAUDIO / VIDIOC_S_AUDIO: %d\n",err);
802                         break;
803                 }
804
805                 set_v4l_control(inode, file, V4L2_CID_AUDIO_VOLUME,
806                                 aud->volume, drv);
807                 set_v4l_control(inode, file, V4L2_CID_AUDIO_BASS,
808                                 aud->bass, drv);
809                 set_v4l_control(inode, file, V4L2_CID_AUDIO_TREBLE,
810                                 aud->treble, drv);
811                 set_v4l_control(inode, file, V4L2_CID_AUDIO_BALANCE,
812                                 aud->balance, drv);
813                 set_v4l_control(inode, file, V4L2_CID_AUDIO_MUTE,
814                                 !!(aud->flags & VIDEO_AUDIO_MUTE), drv);
815
816                 err = drv(inode, file, VIDIOC_G_TUNER, &tun2);
817                 if (err < 0)
818                         dprintk("VIDIOCSAUDIO / VIDIOC_G_TUNER: %d\n",err);
819                 if (err == 0) {
820                         switch (aud->mode) {
821                         default:
822                         case VIDEO_SOUND_MONO:
823                         case VIDEO_SOUND_LANG1:
824                                 tun2.audmode = V4L2_TUNER_MODE_MONO;
825                                 break;
826                         case VIDEO_SOUND_STEREO:
827                                 tun2.audmode = V4L2_TUNER_MODE_STEREO;
828                                 break;
829                         case VIDEO_SOUND_LANG2:
830                                 tun2.audmode = V4L2_TUNER_MODE_LANG2;
831                                 break;
832                         }
833                         err = drv(inode, file, VIDIOC_S_TUNER, &tun2);
834                         if (err < 0)
835                                 dprintk("VIDIOCSAUDIO / VIDIOC_S_TUNER: %d\n",err);
836                 }
837                 err = 0;
838                 break;
839         }
840         case VIDIOCMCAPTURE: /*  capture a frame  */
841         {
842                 struct video_mmap       *mm = arg;
843
844                 fmt2 = kzalloc(sizeof(*fmt2),GFP_KERNEL);
845                 memset(&buf2,0,sizeof(buf2));
846
847                 fmt2->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
848                 err = drv(inode, file, VIDIOC_G_FMT, fmt2);
849                 if (err < 0) {
850                         dprintk("VIDIOCMCAPTURE / VIDIOC_G_FMT: %d\n",err);
851                         break;
852                 }
853                 if (mm->width   != fmt2->fmt.pix.width  ||
854                     mm->height  != fmt2->fmt.pix.height ||
855                     palette_to_pixelformat(mm->format) !=
856                     fmt2->fmt.pix.pixelformat)
857                 {/* New capture format...  */
858                         fmt2->fmt.pix.width = mm->width;
859                         fmt2->fmt.pix.height = mm->height;
860                         fmt2->fmt.pix.pixelformat =
861                                 palette_to_pixelformat(mm->format);
862                         fmt2->fmt.pix.field = V4L2_FIELD_ANY;
863                         fmt2->fmt.pix.bytesperline = 0;
864                         err = drv(inode, file, VIDIOC_S_FMT, fmt2);
865                         if (err < 0) {
866                                 dprintk("VIDIOCMCAPTURE / VIDIOC_S_FMT: %d\n",err);
867                                 break;
868                         }
869                 }
870                 buf2.index = mm->frame;
871                 buf2.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
872                 err = drv(inode, file, VIDIOC_QUERYBUF, &buf2);
873                 if (err < 0) {
874                         dprintk("VIDIOCMCAPTURE / VIDIOC_QUERYBUF: %d\n",err);
875                         break;
876                 }
877                 err = drv(inode, file, VIDIOC_QBUF, &buf2);
878                 if (err < 0) {
879                         dprintk("VIDIOCMCAPTURE / VIDIOC_QBUF: %d\n",err);
880                         break;
881                 }
882                 err = drv(inode, file, VIDIOC_STREAMON, &captype);
883                 if (err < 0)
884                         dprintk("VIDIOCMCAPTURE / VIDIOC_STREAMON: %d\n",err);
885                 break;
886         }
887         case VIDIOCSYNC: /*  wait for a frame  */
888         {
889                 int                     *i = arg;
890
891                 buf2.index = *i;
892                 buf2.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
893                 err = drv(inode, file, VIDIOC_QUERYBUF, &buf2);
894                 if (err < 0) {
895                         /*  No such buffer */
896                         dprintk("VIDIOCSYNC / VIDIOC_QUERYBUF: %d\n",err);
897                         break;
898                 }
899                 if (!(buf2.flags & V4L2_BUF_FLAG_MAPPED)) {
900                         /* Buffer is not mapped  */
901                         err = -EINVAL;
902                         break;
903                 }
904
905                 /* make sure capture actually runs so we don't block forever */
906                 err = drv(inode, file, VIDIOC_STREAMON, &captype);
907                 if (err < 0) {
908                         dprintk("VIDIOCSYNC / VIDIOC_STREAMON: %d\n",err);
909                         break;
910                 }
911
912                 /*  Loop as long as the buffer is queued, but not done  */
913                 while ((buf2.flags &
914                         (V4L2_BUF_FLAG_QUEUED | V4L2_BUF_FLAG_DONE))
915                        == V4L2_BUF_FLAG_QUEUED)
916                 {
917                         err = poll_one(file);
918                         if (err < 0 ||  /* error or sleep was interrupted  */
919                             err == 0)   /* timeout? Shouldn't occur.  */
920                                 break;
921                         err = drv(inode, file, VIDIOC_QUERYBUF, &buf2);
922                         if (err < 0)
923                                 dprintk("VIDIOCSYNC / VIDIOC_QUERYBUF: %d\n",err);
924                 }
925                 if (!(buf2.flags & V4L2_BUF_FLAG_DONE)) /* not done */
926                         break;
927                 do {
928                         err = drv(inode, file, VIDIOC_DQBUF, &buf2);
929                         if (err < 0)
930                                 dprintk("VIDIOCSYNC / VIDIOC_DQBUF: %d\n",err);
931                 } while (err == 0 && buf2.index != *i);
932                 break;
933         }
934
935         case VIDIOCGVBIFMT: /* query VBI data capture format */
936         {
937                 struct vbi_format      *fmt = arg;
938
939                 fmt2 = kzalloc(sizeof(*fmt2),GFP_KERNEL);
940                 fmt2->type = V4L2_BUF_TYPE_VBI_CAPTURE;
941
942                 err = drv(inode, file, VIDIOC_G_FMT, fmt2);
943                 if (err < 0) {
944                         dprintk("VIDIOCGVBIFMT / VIDIOC_G_FMT: %d\n", err);
945                         break;
946                 }
947                 if (fmt2->fmt.vbi.sample_format != V4L2_PIX_FMT_GREY) {
948                         err = -EINVAL;
949                         break;
950                 }
951                 memset(fmt, 0, sizeof(*fmt));
952                 fmt->samples_per_line = fmt2->fmt.vbi.samples_per_line;
953                 fmt->sampling_rate    = fmt2->fmt.vbi.sampling_rate;
954                 fmt->sample_format    = VIDEO_PALETTE_RAW;
955                 fmt->start[0]         = fmt2->fmt.vbi.start[0];
956                 fmt->count[0]         = fmt2->fmt.vbi.count[0];
957                 fmt->start[1]         = fmt2->fmt.vbi.start[1];
958                 fmt->count[1]         = fmt2->fmt.vbi.count[1];
959                 fmt->flags            = fmt2->fmt.vbi.flags & 0x03;
960                 break;
961         }
962         case VIDIOCSVBIFMT:
963         {
964                 struct vbi_format      *fmt = arg;
965
966                 if (VIDEO_PALETTE_RAW != fmt->sample_format) {
967                         err = -EINVAL;
968                         break;
969                 }
970
971                 fmt2 = kzalloc(sizeof(*fmt2),GFP_KERNEL);
972
973                 fmt2->type = V4L2_BUF_TYPE_VBI_CAPTURE;
974                 fmt2->fmt.vbi.samples_per_line = fmt->samples_per_line;
975                 fmt2->fmt.vbi.sampling_rate    = fmt->sampling_rate;
976                 fmt2->fmt.vbi.sample_format    = V4L2_PIX_FMT_GREY;
977                 fmt2->fmt.vbi.start[0]         = fmt->start[0];
978                 fmt2->fmt.vbi.count[0]         = fmt->count[0];
979                 fmt2->fmt.vbi.start[1]         = fmt->start[1];
980                 fmt2->fmt.vbi.count[1]         = fmt->count[1];
981                 fmt2->fmt.vbi.flags            = fmt->flags;
982                 err = drv(inode, file, VIDIOC_TRY_FMT, fmt2);
983                 if (err < 0) {
984                         dprintk("VIDIOCSVBIFMT / VIDIOC_TRY_FMT: %d\n", err);
985                         break;
986                 }
987
988                 if (fmt2->fmt.vbi.samples_per_line != fmt->samples_per_line ||
989                     fmt2->fmt.vbi.sampling_rate    != fmt->sampling_rate    ||
990                     fmt2->fmt.vbi.sample_format    != V4L2_PIX_FMT_GREY     ||
991                     fmt2->fmt.vbi.start[0]         != fmt->start[0]         ||
992                     fmt2->fmt.vbi.count[0]         != fmt->count[0]         ||
993                     fmt2->fmt.vbi.start[1]         != fmt->start[1]         ||
994                     fmt2->fmt.vbi.count[1]         != fmt->count[1]         ||
995                     fmt2->fmt.vbi.flags            != fmt->flags) {
996                         err = -EINVAL;
997                         break;
998                 }
999                 err = drv(inode, file, VIDIOC_S_FMT, fmt2);
1000                 if (err < 0)
1001                         dprintk("VIDIOCSVBIFMT / VIDIOC_S_FMT: %d\n", err);
1002                 break;
1003         }
1004
1005         default:
1006                 err = -ENOIOCTLCMD;
1007                 break;
1008         }
1009
1010         kfree(cap2);
1011         kfree(fmt2);
1012         return err;
1013 }
1014
1015 EXPORT_SYMBOL(v4l_compat_translate_ioctl);
1016
1017 /*
1018  * Local variables:
1019  * c-basic-offset: 8
1020  * End:
1021  */