Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
[linux-2.6] / drivers / media / video / v4l2-common.c
1 /*
2  *      Video for Linux Two
3  *
4  *      A generic video device interface for the LINUX operating system
5  *      using a set of device structures/vectors for low level operations.
6  *
7  *      This file replaces the videodev.c file that comes with the
8  *      regular kernel distribution.
9  *
10  *      This program is free software; you can redistribute it and/or
11  *      modify it under the terms of the GNU General Public License
12  *      as published by the Free Software Foundation; either version
13  *      2 of the License, or (at your option) any later version.
14  *
15  * Author:      Bill Dirks <bdirks@pacbell.net>
16  *              based on code by Alan Cox, <alan@cymru.net>
17  *
18  */
19
20 /*
21  * Video capture interface for Linux
22  *
23  *      A generic video device interface for the LINUX operating system
24  *      using a set of device structures/vectors for low level operations.
25  *
26  *              This program is free software; you can redistribute it and/or
27  *              modify it under the terms of the GNU General Public License
28  *              as published by the Free Software Foundation; either version
29  *              2 of the License, or (at your option) any later version.
30  *
31  * Author:      Alan Cox, <alan@redhat.com>
32  *
33  * Fixes:
34  */
35
36 /*
37  * Video4linux 1/2 integration by Justin Schoeman
38  * <justin@suntiger.ee.up.ac.za>
39  * 2.4 PROCFS support ported from 2.4 kernels by
40  *  Iñaki García Etxebarria <garetxe@euskalnet.net>
41  * Makefile fix by "W. Michael Petullo" <mike@flyn.org>
42  * 2.4 devfs support ported from 2.4 kernels by
43  *  Dan Merillat <dan@merillat.org>
44  * Added Gerd Knorrs v4l1 enhancements (Justin Schoeman)
45  */
46
47 #include <linux/config.h>
48 #include <linux/module.h>
49 #include <linux/types.h>
50 #include <linux/kernel.h>
51 #include <linux/sched.h>
52 #include <linux/smp_lock.h>
53 #include <linux/mm.h>
54 #include <linux/string.h>
55 #include <linux/errno.h>
56 #include <asm/uaccess.h>
57 #include <asm/system.h>
58 #include <asm/pgtable.h>
59 #include <asm/io.h>
60 #include <asm/div64.h>
61 #include <linux/video_decoder.h>
62 #include <media/v4l2-common.h>
63
64 #ifdef CONFIG_KMOD
65 #include <linux/kmod.h>
66 #endif
67
68 #if defined(CONFIG_UST) || defined(CONFIG_UST_MODULE)
69 #include <linux/ust.h>
70 #endif
71
72
73 #include <linux/videodev.h>
74
75 MODULE_AUTHOR("Bill Dirks, Justin Schoeman, Gerd Knorr");
76 MODULE_DESCRIPTION("misc helper functions for v4l2 device drivers");
77 MODULE_LICENSE("GPL");
78
79 /*
80  *
81  *      V 4 L 2   D R I V E R   H E L P E R   A P I
82  *
83  */
84
85 /*
86  *  Video Standard Operations (contributed by Michael Schimek)
87  */
88
89
90 /* Fill in the fields of a v4l2_standard structure according to the
91    'id' and 'transmission' parameters.  Returns negative on error.  */
92 int v4l2_video_std_construct(struct v4l2_standard *vs,
93                              int id, char *name)
94 {
95         u32 index = vs->index;
96
97         memset(vs, 0, sizeof(struct v4l2_standard));
98         vs->index = index;
99         vs->id    = id;
100         if (id & V4L2_STD_525_60) {
101                 vs->frameperiod.numerator = 1001;
102                 vs->frameperiod.denominator = 30000;
103                 vs->framelines = 525;
104         } else {
105                 vs->frameperiod.numerator = 1;
106                 vs->frameperiod.denominator = 25;
107                 vs->framelines = 625;
108         }
109         strlcpy(vs->name,name,sizeof(vs->name));
110         return 0;
111 }
112
113 /* ----------------------------------------------------------------- */
114 /* priority handling                                                 */
115
116 #define V4L2_PRIO_VALID(val) (val == V4L2_PRIORITY_BACKGROUND   || \
117                               val == V4L2_PRIORITY_INTERACTIVE  || \
118                               val == V4L2_PRIORITY_RECORD)
119
120 int v4l2_prio_init(struct v4l2_prio_state *global)
121 {
122         memset(global,0,sizeof(*global));
123         return 0;
124 }
125
126 int v4l2_prio_change(struct v4l2_prio_state *global, enum v4l2_priority *local,
127                      enum v4l2_priority new)
128 {
129         if (!V4L2_PRIO_VALID(new))
130                 return -EINVAL;
131         if (*local == new)
132                 return 0;
133
134         atomic_inc(&global->prios[new]);
135         if (V4L2_PRIO_VALID(*local))
136                 atomic_dec(&global->prios[*local]);
137         *local = new;
138         return 0;
139 }
140
141 int v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local)
142 {
143         return v4l2_prio_change(global,local,V4L2_PRIORITY_DEFAULT);
144 }
145
146 int v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority *local)
147 {
148         if (V4L2_PRIO_VALID(*local))
149                 atomic_dec(&global->prios[*local]);
150         return 0;
151 }
152
153 enum v4l2_priority v4l2_prio_max(struct v4l2_prio_state *global)
154 {
155         if (atomic_read(&global->prios[V4L2_PRIORITY_RECORD]) > 0)
156                 return V4L2_PRIORITY_RECORD;
157         if (atomic_read(&global->prios[V4L2_PRIORITY_INTERACTIVE]) > 0)
158                 return V4L2_PRIORITY_INTERACTIVE;
159         if (atomic_read(&global->prios[V4L2_PRIORITY_BACKGROUND]) > 0)
160                 return V4L2_PRIORITY_BACKGROUND;
161         return V4L2_PRIORITY_UNSET;
162 }
163
164 int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority *local)
165 {
166         if (*local < v4l2_prio_max(global))
167                 return -EBUSY;
168         return 0;
169 }
170
171
172 /* ----------------------------------------------------------------- */
173 /* some arrays for pretty-printing debug messages of enum types      */
174
175 char *v4l2_field_names[] = {
176         [V4L2_FIELD_ANY]        = "any",
177         [V4L2_FIELD_NONE]       = "none",
178         [V4L2_FIELD_TOP]        = "top",
179         [V4L2_FIELD_BOTTOM]     = "bottom",
180         [V4L2_FIELD_INTERLACED] = "interlaced",
181         [V4L2_FIELD_SEQ_TB]     = "seq-tb",
182         [V4L2_FIELD_SEQ_BT]     = "seq-bt",
183         [V4L2_FIELD_ALTERNATE]  = "alternate",
184 };
185
186 char *v4l2_type_names[] = {
187         [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "video-cap",
188         [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "video-over",
189         [V4L2_BUF_TYPE_VIDEO_OUTPUT]  = "video-out",
190         [V4L2_BUF_TYPE_VBI_CAPTURE]   = "vbi-cap",
191         [V4L2_BUF_TYPE_VBI_OUTPUT]    = "vbi-out",
192 };
193
194 static char *v4l2_memory_names[] = {
195         [V4L2_MEMORY_MMAP]    = "mmap",
196         [V4L2_MEMORY_USERPTR] = "userptr",
197         [V4L2_MEMORY_OVERLAY] = "overlay",
198 };
199
200 #define prt_names(a,arr) (((a)>=0)&&((a)<ARRAY_SIZE(arr)))?arr[a]:"unknown"
201
202 /* ------------------------------------------------------------------ */
203 /* debug help functions                                               */
204
205 #ifdef HAVE_V4L1
206 static const char *v4l1_ioctls[] = {
207         [_IOC_NR(VIDIOCGCAP)]       = "VIDIOCGCAP",
208         [_IOC_NR(VIDIOCGCHAN)]      = "VIDIOCGCHAN",
209         [_IOC_NR(VIDIOCSCHAN)]      = "VIDIOCSCHAN",
210         [_IOC_NR(VIDIOCGTUNER)]     = "VIDIOCGTUNER",
211         [_IOC_NR(VIDIOCSTUNER)]     = "VIDIOCSTUNER",
212         [_IOC_NR(VIDIOCGPICT)]      = "VIDIOCGPICT",
213         [_IOC_NR(VIDIOCSPICT)]      = "VIDIOCSPICT",
214         [_IOC_NR(VIDIOCCAPTURE)]    = "VIDIOCCAPTURE",
215         [_IOC_NR(VIDIOCGWIN)]       = "VIDIOCGWIN",
216         [_IOC_NR(VIDIOCSWIN)]       = "VIDIOCSWIN",
217         [_IOC_NR(VIDIOCGFBUF)]      = "VIDIOCGFBUF",
218         [_IOC_NR(VIDIOCSFBUF)]      = "VIDIOCSFBUF",
219         [_IOC_NR(VIDIOCKEY)]        = "VIDIOCKEY",
220         [_IOC_NR(VIDIOCGFREQ)]      = "VIDIOCGFREQ",
221         [_IOC_NR(VIDIOCSFREQ)]      = "VIDIOCSFREQ",
222         [_IOC_NR(VIDIOCGAUDIO)]     = "VIDIOCGAUDIO",
223         [_IOC_NR(VIDIOCSAUDIO)]     = "VIDIOCSAUDIO",
224         [_IOC_NR(VIDIOCSYNC)]       = "VIDIOCSYNC",
225         [_IOC_NR(VIDIOCMCAPTURE)]   = "VIDIOCMCAPTURE",
226         [_IOC_NR(VIDIOCGMBUF)]      = "VIDIOCGMBUF",
227         [_IOC_NR(VIDIOCGUNIT)]      = "VIDIOCGUNIT",
228         [_IOC_NR(VIDIOCGCAPTURE)]   = "VIDIOCGCAPTURE",
229         [_IOC_NR(VIDIOCSCAPTURE)]   = "VIDIOCSCAPTURE",
230         [_IOC_NR(VIDIOCSPLAYMODE)]  = "VIDIOCSPLAYMODE",
231         [_IOC_NR(VIDIOCSWRITEMODE)] = "VIDIOCSWRITEMODE",
232         [_IOC_NR(VIDIOCGPLAYINFO)]  = "VIDIOCGPLAYINFO",
233         [_IOC_NR(VIDIOCSMICROCODE)] = "VIDIOCSMICROCODE",
234         [_IOC_NR(VIDIOCGVBIFMT)]    = "VIDIOCGVBIFMT",
235         [_IOC_NR(VIDIOCSVBIFMT)]    = "VIDIOCSVBIFMT"
236 };
237 #define V4L1_IOCTLS ARRAY_SIZE(v4l1_ioctls)
238 #endif
239
240 static const char *v4l2_ioctls[] = {
241         [_IOC_NR(VIDIOC_QUERYCAP)]         = "VIDIOC_QUERYCAP",
242         [_IOC_NR(VIDIOC_RESERVED)]         = "VIDIOC_RESERVED",
243         [_IOC_NR(VIDIOC_ENUM_FMT)]         = "VIDIOC_ENUM_FMT",
244         [_IOC_NR(VIDIOC_G_FMT)]            = "VIDIOC_G_FMT",
245         [_IOC_NR(VIDIOC_S_FMT)]            = "VIDIOC_S_FMT",
246         [_IOC_NR(VIDIOC_G_MPEGCOMP)]       = "VIDIOC_G_MPEGCOMP",
247         [_IOC_NR(VIDIOC_S_MPEGCOMP)]       = "VIDIOC_S_MPEGCOMP",
248         [_IOC_NR(VIDIOC_REQBUFS)]          = "VIDIOC_REQBUFS",
249         [_IOC_NR(VIDIOC_QUERYBUF)]         = "VIDIOC_QUERYBUF",
250         [_IOC_NR(VIDIOC_G_FBUF)]           = "VIDIOC_G_FBUF",
251         [_IOC_NR(VIDIOC_S_FBUF)]           = "VIDIOC_S_FBUF",
252         [_IOC_NR(VIDIOC_OVERLAY)]          = "VIDIOC_OVERLAY",
253         [_IOC_NR(VIDIOC_QBUF)]             = "VIDIOC_QBUF",
254         [_IOC_NR(VIDIOC_DQBUF)]            = "VIDIOC_DQBUF",
255         [_IOC_NR(VIDIOC_STREAMON)]         = "VIDIOC_STREAMON",
256         [_IOC_NR(VIDIOC_STREAMOFF)]        = "VIDIOC_STREAMOFF",
257         [_IOC_NR(VIDIOC_G_PARM)]           = "VIDIOC_G_PARM",
258         [_IOC_NR(VIDIOC_S_PARM)]           = "VIDIOC_S_PARM",
259         [_IOC_NR(VIDIOC_G_STD)]            = "VIDIOC_G_STD",
260         [_IOC_NR(VIDIOC_S_STD)]            = "VIDIOC_S_STD",
261         [_IOC_NR(VIDIOC_ENUMSTD)]          = "VIDIOC_ENUMSTD",
262         [_IOC_NR(VIDIOC_ENUMINPUT)]        = "VIDIOC_ENUMINPUT",
263         [_IOC_NR(VIDIOC_G_CTRL)]           = "VIDIOC_G_CTRL",
264         [_IOC_NR(VIDIOC_S_CTRL)]           = "VIDIOC_S_CTRL",
265         [_IOC_NR(VIDIOC_G_TUNER)]          = "VIDIOC_G_TUNER",
266         [_IOC_NR(VIDIOC_S_TUNER)]          = "VIDIOC_S_TUNER",
267         [_IOC_NR(VIDIOC_G_AUDIO)]          = "VIDIOC_G_AUDIO",
268         [_IOC_NR(VIDIOC_S_AUDIO)]          = "VIDIOC_S_AUDIO",
269         [_IOC_NR(VIDIOC_QUERYCTRL)]        = "VIDIOC_QUERYCTRL",
270         [_IOC_NR(VIDIOC_QUERYMENU)]        = "VIDIOC_QUERYMENU",
271         [_IOC_NR(VIDIOC_G_INPUT)]          = "VIDIOC_G_INPUT",
272         [_IOC_NR(VIDIOC_S_INPUT)]          = "VIDIOC_S_INPUT",
273         [_IOC_NR(VIDIOC_G_OUTPUT)]         = "VIDIOC_G_OUTPUT",
274         [_IOC_NR(VIDIOC_S_OUTPUT)]         = "VIDIOC_S_OUTPUT",
275         [_IOC_NR(VIDIOC_ENUMOUTPUT)]       = "VIDIOC_ENUMOUTPUT",
276         [_IOC_NR(VIDIOC_G_AUDOUT)]         = "VIDIOC_G_AUDOUT",
277         [_IOC_NR(VIDIOC_S_AUDOUT)]         = "VIDIOC_S_AUDOUT",
278         [_IOC_NR(VIDIOC_G_MODULATOR)]      = "VIDIOC_G_MODULATOR",
279         [_IOC_NR(VIDIOC_S_MODULATOR)]      = "VIDIOC_S_MODULATOR",
280         [_IOC_NR(VIDIOC_G_FREQUENCY)]      = "VIDIOC_G_FREQUENCY",
281         [_IOC_NR(VIDIOC_S_FREQUENCY)]      = "VIDIOC_S_FREQUENCY",
282         [_IOC_NR(VIDIOC_CROPCAP)]          = "VIDIOC_CROPCAP",
283         [_IOC_NR(VIDIOC_G_CROP)]           = "VIDIOC_G_CROP",
284         [_IOC_NR(VIDIOC_S_CROP)]           = "VIDIOC_S_CROP",
285         [_IOC_NR(VIDIOC_G_JPEGCOMP)]       = "VIDIOC_G_JPEGCOMP",
286         [_IOC_NR(VIDIOC_S_JPEGCOMP)]       = "VIDIOC_S_JPEGCOMP",
287         [_IOC_NR(VIDIOC_QUERYSTD)]         = "VIDIOC_QUERYSTD",
288         [_IOC_NR(VIDIOC_TRY_FMT)]          = "VIDIOC_TRY_FMT",
289         [_IOC_NR(VIDIOC_ENUMAUDIO)]        = "VIDIOC_ENUMAUDIO",
290         [_IOC_NR(VIDIOC_ENUMAUDOUT)]       = "VIDIOC_ENUMAUDOUT",
291         [_IOC_NR(VIDIOC_G_PRIORITY)]       = "VIDIOC_G_PRIORITY",
292         [_IOC_NR(VIDIOC_S_PRIORITY)]       = "VIDIOC_S_PRIORITY",
293 #if 1
294         [_IOC_NR(VIDIOC_G_SLICED_VBI_CAP)] = "VIDIOC_G_SLICED_VBI_CAP",
295 #endif
296         [_IOC_NR(VIDIOC_LOG_STATUS)]       = "VIDIOC_LOG_STATUS"
297 };
298 #define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
299
300 static const char *v4l2_int_ioctls[] = {
301 #ifdef HAVE_VIDEO_DECODER
302         [_IOC_NR(DECODER_GET_CAPABILITIES)]    = "DECODER_GET_CAPABILITIES",
303         [_IOC_NR(DECODER_GET_STATUS)]          = "DECODER_GET_STATUS",
304         [_IOC_NR(DECODER_SET_NORM)]            = "DECODER_SET_NORM",
305         [_IOC_NR(DECODER_SET_INPUT)]           = "DECODER_SET_INPUT",
306         [_IOC_NR(DECODER_SET_OUTPUT)]          = "DECODER_SET_OUTPUT",
307         [_IOC_NR(DECODER_ENABLE_OUTPUT)]       = "DECODER_ENABLE_OUTPUT",
308         [_IOC_NR(DECODER_SET_PICTURE)]         = "DECODER_SET_PICTURE",
309         [_IOC_NR(DECODER_SET_GPIO)]            = "DECODER_SET_GPIO",
310         [_IOC_NR(DECODER_INIT)]                = "DECODER_INIT",
311         [_IOC_NR(DECODER_SET_VBI_BYPASS)]      = "DECODER_SET_VBI_BYPASS",
312         [_IOC_NR(DECODER_DUMP)]                = "DECODER_DUMP",
313 #endif
314         [_IOC_NR(AUDC_SET_RADIO)]              = "AUDC_SET_RADIO",
315
316         [_IOC_NR(TUNER_SET_TYPE_ADDR)]         = "TUNER_SET_TYPE_ADDR",
317         [_IOC_NR(TUNER_SET_STANDBY)]           = "TUNER_SET_STANDBY",
318         [_IOC_NR(TDA9887_SET_CONFIG)]          = "TDA9887_SET_CONFIG",
319
320         [_IOC_NR(VIDIOC_INT_S_REGISTER)]       = "VIDIOC_INT_S_REGISTER",
321         [_IOC_NR(VIDIOC_INT_G_REGISTER)]       = "VIDIOC_INT_G_REGISTER",
322         [_IOC_NR(VIDIOC_INT_RESET)]            = "VIDIOC_INT_RESET",
323         [_IOC_NR(VIDIOC_INT_AUDIO_CLOCK_FREQ)] = "VIDIOC_INT_AUDIO_CLOCK_FREQ",
324         [_IOC_NR(VIDIOC_INT_DECODE_VBI_LINE)]  = "VIDIOC_INT_DECODE_VBI_LINE",
325         [_IOC_NR(VIDIOC_INT_S_VBI_DATA)]       = "VIDIOC_INT_S_VBI_DATA",
326         [_IOC_NR(VIDIOC_INT_G_VBI_DATA)]       = "VIDIOC_INT_G_VBI_DATA",
327         [_IOC_NR(VIDIOC_INT_G_CHIP_IDENT)]     = "VIDIOC_INT_G_CHIP_IDENT",
328         [_IOC_NR(VIDIOC_INT_I2S_CLOCK_FREQ)]   = "VIDIOC_INT_I2S_CLOCK_FREQ"
329 };
330 #define V4L2_INT_IOCTLS ARRAY_SIZE(v4l2_int_ioctls)
331
332 static void v4l_print_pix_fmt (char *s, struct v4l2_pix_format *fmt)
333 {
334         printk ("%s: width=%d, height=%d, format=%d, field=%s, "
335                 "bytesperline=%d sizeimage=%d, colorspace=%d\n", s,
336                 fmt->width,fmt->height,fmt->pixelformat,
337                 prt_names(fmt->field,v4l2_field_names),
338                 fmt->bytesperline,fmt->sizeimage,fmt->colorspace);
339 };
340
341 /* Common ioctl debug function. This function can be used by
342    external ioctl messages as well as internal V4L ioctl */
343 void v4l_printk_ioctl(unsigned int cmd)
344 {
345         char *dir;
346
347         switch (_IOC_DIR(cmd)) {
348         case _IOC_NONE:              dir = "--"; break;
349         case _IOC_READ:              dir = "r-"; break;
350         case _IOC_WRITE:             dir = "-w"; break;
351         case _IOC_READ | _IOC_WRITE: dir = "rw"; break;
352         default:                     dir = "*ERR*"; break;
353         }
354         switch (_IOC_TYPE(cmd)) {
355         case 'd':
356                 printk("v4l2_int ioctl %s, dir=%s (0x%08x)\n",
357                        (_IOC_NR(cmd) < V4L2_INT_IOCTLS) ?
358                        v4l2_int_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd);
359                 break;
360 #ifdef HAVE_V4L1
361         case 'v':
362                 printk("v4l1 ioctl %s, dir=%s (0x%08x)\n",
363                        (_IOC_NR(cmd) < V4L1_IOCTLS) ?
364                        v4l1_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd);
365                 break;
366 #endif
367         case 'V':
368                 printk("v4l2 ioctl %s, dir=%s (0x%08x)\n",
369                        (_IOC_NR(cmd) < V4L2_IOCTLS) ?
370                        v4l2_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd);
371                 break;
372
373         default:
374                 printk("unknown ioctl '%c', dir=%s, #%d (0x%08x)\n",
375                        _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd);
376         }
377 }
378
379 /* Common ioctl debug function. This function can be used by
380    external ioctl messages as well as internal V4L ioctl and its
381    arguments */
382 void v4l_printk_ioctl_arg(char *s,unsigned int cmd, void *arg)
383 {
384         printk(s);
385         printk(": ");
386         v4l_printk_ioctl(cmd);
387         switch (cmd) {
388         case VIDIOC_INT_G_CHIP_IDENT:
389         {
390                 enum v4l2_chip_ident  *p=arg;
391                 printk ("%s: chip ident=%d\n", s, *p);
392                 break;
393         }
394         case VIDIOC_G_PRIORITY:
395         case VIDIOC_S_PRIORITY:
396         {
397                 enum v4l2_priority *p=arg;
398                 printk ("%s: priority=%d\n", s, *p);
399                 break;
400         }
401         case VIDIOC_INT_S_TUNER_MODE:
402         {
403                 enum v4l2_tuner_type *p=arg;
404                 printk ("%s: tuner type=%d\n", s, *p);
405                 break;
406         }
407         case DECODER_SET_VBI_BYPASS:
408         case DECODER_ENABLE_OUTPUT:
409         case DECODER_GET_STATUS:
410         case DECODER_SET_OUTPUT:
411         case DECODER_SET_INPUT:
412         case DECODER_SET_GPIO:
413         case DECODER_SET_NORM:
414         case VIDIOCCAPTURE:
415         case VIDIOCSYNC:
416         case VIDIOCSWRITEMODE:
417         case TUNER_SET_TYPE_ADDR:
418         case TUNER_SET_STANDBY:
419         case TDA9887_SET_CONFIG:
420         case VIDIOC_OVERLAY_OLD:
421         case VIDIOC_STREAMOFF:
422         case VIDIOC_G_OUTPUT:
423         case VIDIOC_S_OUTPUT:
424         case VIDIOC_STREAMON:
425         case VIDIOC_G_INPUT:
426         case VIDIOC_OVERLAY:
427         case VIDIOC_S_INPUT:
428         {
429                 int *p=arg;
430                 printk ("%s: value=%d\n", s, *p);
431                 break;
432         }
433         case VIDIOC_G_AUDIO:
434         case VIDIOC_S_AUDIO:
435         case VIDIOC_ENUMAUDIO:
436         case VIDIOC_G_AUDIO_OLD:
437         {
438                 struct v4l2_audio *p=arg;
439
440                 printk ("%s: index=%d, name=%s, capability=%d, mode=%d\n",
441                         s,p->index, p->name,p->capability, p->mode);
442                 break;
443         }
444         case VIDIOC_G_AUDOUT:
445         case VIDIOC_S_AUDOUT:
446         case VIDIOC_ENUMAUDOUT:
447         case VIDIOC_G_AUDOUT_OLD:
448         {
449                 struct v4l2_audioout *p=arg;
450                 printk ("%s: index=%d, name=%s, capability=%d, mode=%d\n", s,
451                                 p->index, p->name, p->capability,p->mode);
452                 break;
453         }
454         case VIDIOC_QBUF:
455         case VIDIOC_DQBUF:
456         case VIDIOC_QUERYBUF:
457         {
458                 struct v4l2_buffer *p=arg;
459                 struct v4l2_timecode *tc=&p->timecode;
460                 printk ("%s: %02ld:%02d:%02d.%08ld index=%d, type=%s, "
461                         "bytesused=%d, flags=0x%08x, "
462                         "field=%0d, sequence=%d, memory=%s, offset/userptr=0x%08lx\n",
463                                 s,
464                                 (p->timestamp.tv_sec/3600),
465                                 (int)(p->timestamp.tv_sec/60)%60,
466                                 (int)(p->timestamp.tv_sec%60),
467                                 p->timestamp.tv_usec,
468                                 p->index,
469                                 prt_names(p->type,v4l2_type_names),
470                                 p->bytesused,p->flags,
471                                 p->field,p->sequence,
472                                 prt_names(p->memory,v4l2_memory_names),
473                                 p->m.userptr);
474                 printk ("%s: timecode= %02d:%02d:%02d type=%d, "
475                         "flags=0x%08x, frames=%d, userbits=0x%p\n",
476                                 s,tc->hours,tc->minutes,tc->seconds,
477                                 tc->type, tc->flags, tc->frames, tc->userbits);
478                 break;
479         }
480         case VIDIOC_QUERYCAP:
481         {
482                 struct v4l2_capability *p=arg;
483                 printk ("%s: driver=%s, card=%s, bus=%s, version=0x%08x, "
484                         "capabilities=0x%08x\n", s,
485                                 p->driver,p->card,p->bus_info,
486                                 p->version,
487                                 p->capabilities);
488                 break;
489         }
490         case VIDIOC_G_CTRL:
491         case VIDIOC_S_CTRL:
492         case VIDIOC_S_CTRL_OLD:
493         {
494                 struct v4l2_control *p=arg;
495                 printk ("%s: id=%d, value=%d\n", s, p->id, p->value);
496                 break;
497         }
498         case VIDIOC_G_CROP:
499         case VIDIOC_S_CROP:
500         {
501                 struct v4l2_crop *p=arg;
502                 /*FIXME: Should also show rect structs */
503                 printk ("%s: type=%d\n", s, p->type);
504                 break;
505         }
506         case VIDIOC_CROPCAP:
507         case VIDIOC_CROPCAP_OLD:
508         {
509                 struct v4l2_cropcap *p=arg;
510                 /*FIXME: Should also show rect structs */
511                 printk ("%s: type=%d\n", s, p->type);
512                 break;
513         }
514         case VIDIOC_INT_DECODE_VBI_LINE:
515         {
516                 struct v4l2_decode_vbi_line *p=arg;
517                 printk ("%s: is_second_field=%d, ptr=0x%08lx, line=%d, "
518                         "type=%d\n", s,
519                                 p->is_second_field,(unsigned long)p->p,p->line,p->type);
520                 break;
521         }
522         case VIDIOC_ENUM_FMT:
523         {
524                 struct v4l2_fmtdesc *p=arg;
525                 printk ("%s: index=%d, type=%d, flags=%d, description=%s,"
526                         " pixelformat=%d\n", s,
527                                 p->index, p->type, p->flags,p->description,
528                                 p->pixelformat);
529
530                 break;
531         }
532         case VIDIOC_G_FMT:
533         case VIDIOC_S_FMT:
534         case VIDIOC_TRY_FMT:
535         {
536                 struct v4l2_format *p=arg;
537                 printk ("%s: type=%s\n", s,
538                                 prt_names(p->type,v4l2_type_names));
539                 switch (p->type) {
540                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
541                         v4l_print_pix_fmt (s, &p->fmt.pix);
542                         break;
543                 default:
544                         break;
545                 }
546         }
547         case VIDIOC_G_FBUF:
548         case VIDIOC_S_FBUF:
549         {
550                 struct v4l2_framebuffer *p=arg;
551                 printk ("%s: capability=%d, flags=%d, base=0x%08lx\n", s,
552                                 p->capability,p->flags, (unsigned long)p->base);
553                 v4l_print_pix_fmt (s, &p->fmt);
554                 break;
555         }
556         case VIDIOC_G_FREQUENCY:
557         case VIDIOC_S_FREQUENCY:
558         {
559                 struct v4l2_frequency *p=arg;
560                 printk ("%s: tuner=%d, type=%d, frequency=%d\n", s,
561                                 p->tuner,p->type,p->frequency);
562                 break;
563         }
564         case VIDIOC_ENUMINPUT:
565         {
566                 struct v4l2_input *p=arg;
567                 printk ("%s: index=%d, name=%s, type=%d, audioset=%d, "
568                         "tuner=%d, std=%Ld, status=%d\n", s,
569                                 p->index,p->name,p->type,p->audioset,
570                                 p->tuner,
571                                 (unsigned long long)p->std,
572                                 p->status);
573                 break;
574         }
575         case VIDIOC_G_JPEGCOMP:
576         case VIDIOC_S_JPEGCOMP:
577         {
578                 struct v4l2_jpegcompression *p=arg;
579                 printk ("%s: quality=%d, APPn=%d, APP_len=%d, COM_len=%d,"
580                         " jpeg_markers=%d\n", s,
581                                 p->quality,p->APPn,p->APP_len,
582                                 p->COM_len,p->jpeg_markers);
583                 break;
584         }
585         case VIDIOC_G_MODULATOR:
586         case VIDIOC_S_MODULATOR:
587         {
588                 struct v4l2_modulator *p=arg;
589                 printk ("%s: index=%d, name=%s, capability=%d, rangelow=%d,"
590                         " rangehigh=%d, txsubchans=%d\n", s,
591                                 p->index, p->name,p->capability,p->rangelow,
592                                 p->rangehigh,p->txsubchans);
593                 break;
594         }
595         case VIDIOC_G_MPEGCOMP:
596         case VIDIOC_S_MPEGCOMP:
597         {
598                 struct v4l2_mpeg_compression *p=arg;
599                 /*FIXME: Several fields not shown */
600                 printk ("%s: ts_pid_pmt=%d, ts_pid_audio=%d, ts_pid_video=%d, "
601                         "ts_pid_pcr=%d, ps_size=%d, au_sample_rate=%d, "
602                         "au_pesid=%c, vi_frame_rate=%d, vi_frames_per_gop=%d, "
603                         "vi_bframes_count=%d, vi_pesid=%c\n", s,
604                                 p->ts_pid_pmt,p->ts_pid_audio, p->ts_pid_video,
605                                 p->ts_pid_pcr, p->ps_size, p->au_sample_rate,
606                                 p->au_pesid, p->vi_frame_rate,
607                                 p->vi_frames_per_gop, p->vi_bframes_count,
608                                 p->vi_pesid);
609                 break;
610         }
611         case VIDIOC_ENUMOUTPUT:
612         {
613                 struct v4l2_output *p=arg;
614                 printk ("%s: index=%d, name=%s,type=%d, audioset=%d, "
615                         "modulator=%d, std=%Ld\n",
616                                 s,p->index,p->name,p->type,p->audioset,
617                                 p->modulator,
618                                 (unsigned long long)p->std);
619                 break;
620         }
621         case VIDIOC_QUERYCTRL:
622         {
623                 struct v4l2_queryctrl *p=arg;
624                 printk ("%s: id=%d, type=%d, name=%s, min/max=%d/%d,"
625                         " step=%d, default=%d, flags=0x%08x\n", s,
626                                 p->id,p->type,p->name,p->minimum,p->maximum,
627                                 p->step,p->default_value,p->flags);
628                 break;
629         }
630         case VIDIOC_QUERYMENU:
631         {
632                 struct v4l2_querymenu *p=arg;
633                 printk ("%s: id=%d, index=%d, name=%s\n", s,
634                                 p->id,p->index,p->name);
635                 break;
636         }
637         case VIDIOC_INT_G_REGISTER:
638         case VIDIOC_INT_S_REGISTER:
639         {
640                 struct v4l2_register *p=arg;
641                 printk ("%s: i2c_id=%d, reg=%lu, val=%d\n", s,
642                                 p->i2c_id,p->reg,p->val);
643
644                 break;
645         }
646         case VIDIOC_REQBUFS:
647         {
648                 struct v4l2_requestbuffers *p=arg;
649                 printk ("%s: count=%d, type=%s, memory=%s\n", s,
650                                 p->count,
651                                 prt_names(p->type,v4l2_type_names),
652                                 prt_names(p->memory,v4l2_memory_names));
653                 break;
654         }
655         case VIDIOC_INT_S_AUDIO_ROUTING:
656         case VIDIOC_INT_S_VIDEO_ROUTING:
657         case VIDIOC_INT_G_AUDIO_ROUTING:
658         case VIDIOC_INT_G_VIDEO_ROUTING:
659         {
660                 struct v4l2_routing  *p=arg;
661                 printk ("%s: input=0x%x, output=0x%x\n", s, p->input, p->output);
662                 break;
663         }
664         case VIDIOC_G_SLICED_VBI_CAP:
665         {
666                 struct v4l2_sliced_vbi_cap *p=arg;
667                 printk ("%s: service_set=%d\n", s,
668                                 p->service_set);
669                 break;
670         }
671         case VIDIOC_INT_S_VBI_DATA:
672         case VIDIOC_INT_G_VBI_DATA:
673         {
674                 struct v4l2_sliced_vbi_data  *p=arg;
675                 printk ("%s: id=%d, field=%d, line=%d\n", s,
676                                 p->id, p->field, p->line);
677                 break;
678         }
679         case VIDIOC_ENUMSTD:
680         {
681                 struct v4l2_standard *p=arg;
682                 printk ("%s: index=%d, id=%Ld, name=%s, fps=%d/%d, "
683                         "framelines=%d\n", s, p->index,
684                                 (unsigned long long)p->id, p->name,
685                                 p->frameperiod.numerator,
686                                 p->frameperiod.denominator,
687                                 p->framelines);
688
689                 break;
690         }
691         case VIDIOC_G_PARM:
692         case VIDIOC_S_PARM:
693         case VIDIOC_S_PARM_OLD:
694         {
695                 struct v4l2_streamparm *p=arg;
696                 printk ("%s: type=%d\n", s, p->type);
697
698                 break;
699         }
700         case VIDIOC_G_TUNER:
701         case VIDIOC_S_TUNER:
702         {
703                 struct v4l2_tuner *p=arg;
704                 printk ("%s: index=%d, name=%s, type=%d, capability=%d, "
705                         "rangelow=%d, rangehigh=%d, signal=%d, afc=%d, "
706                         "rxsubchans=%d, audmode=%d\n", s,
707                                 p->index, p->name, p->type,
708                                 p->capability, p->rangelow,p->rangehigh,
709                                 p->rxsubchans, p->audmode, p->signal,
710                                 p->afc);
711                 break;
712         }
713         case VIDIOCGVBIFMT:
714         case VIDIOCSVBIFMT:
715         {
716                 struct vbi_format *p=arg;
717                 printk ("%s: sampling_rate=%d, samples_per_line=%d, "
718                         "sample_format=%d, start=%d/%d, count=%d/%d, flags=%d\n", s,
719                                 p->sampling_rate,p->samples_per_line,
720                                 p->sample_format,p->start[0],p->start[1],
721                                 p->count[0],p->count[1],p->flags);
722                 break;
723         }
724         case VIDIOCGAUDIO:
725         case VIDIOCSAUDIO:
726         {
727                 struct video_audio *p=arg;
728                 printk ("%s: audio=%d, volume=%d, bass=%d, treble=%d, "
729                         "flags=%d, name=%s, mode=%d, balance=%d, step=%d\n",
730                                 s,p->audio,p->volume,p->bass, p->treble,
731                                 p->flags,p->name,p->mode,p->balance,p->step);
732                 break;
733         }
734         case VIDIOCGFBUF:
735         case VIDIOCSFBUF:
736         {
737                 struct video_buffer *p=arg;
738                 printk ("%s: base=%08lx, height=%d, width=%d, depth=%d, "
739                         "bytesperline=%d\n", s,
740                                 (unsigned long) p->base, p->height, p->width,
741                                 p->depth,p->bytesperline);
742                 break;
743         }
744         case VIDIOCGCAP:
745         {
746                 struct video_capability *p=arg;
747                 printk ("%s: name=%s, type=%d, channels=%d, audios=%d, "
748                         "maxwidth=%d, maxheight=%d, minwidth=%d, minheight=%d\n",
749                                 s,p->name,p->type,p->channels,p->audios,
750                                 p->maxwidth,p->maxheight,p->minwidth,
751                                 p->minheight);
752
753                 break;
754         }
755         case VIDIOCGCAPTURE:
756         case VIDIOCSCAPTURE:
757         {
758                 struct video_capture *p=arg;
759                 printk ("%s: x=%d, y=%d, width=%d, height=%d, decimation=%d,"
760                         " flags=%d\n", s,
761                                 p->x, p->y,p->width, p->height,
762                                 p->decimation,p->flags);
763                 break;
764         }
765         case VIDIOCGCHAN:
766         case VIDIOCSCHAN:
767         {
768                 struct video_channel *p=arg;
769                 printk ("%s: channel=%d, name=%s, tuners=%d, flags=%d, "
770                         "type=%d, norm=%d\n", s,
771                                 p->channel,p->name,p->tuners,
772                                 p->flags,p->type,p->norm);
773
774                 break;
775         }
776         case VIDIOCSMICROCODE:
777         {
778                 struct video_code *p=arg;
779                 printk ("%s: loadwhat=%s, datasize=%d\n", s,
780                                 p->loadwhat,p->datasize);
781                 break;
782         }
783         case DECODER_GET_CAPABILITIES:
784         {
785                 struct video_decoder_capability *p=arg;
786                 printk ("%s: flags=%d, inputs=%d, outputs=%d\n", s,
787                                 p->flags,p->inputs,p->outputs);
788                 break;
789         }
790         case DECODER_INIT:
791         {
792                 struct video_decoder_init *p=arg;
793                 printk ("%s: len=%c\n", s, p->len);
794                 break;
795         }
796         case VIDIOCGPLAYINFO:
797         {
798                 struct video_info *p=arg;
799                 printk ("%s: frame_count=%d, h_size=%d, v_size=%d, "
800                         "smpte_timecode=%d, picture_type=%d, "
801                         "temporal_reference=%d, user_data=%s\n", s,
802                                 p->frame_count, p->h_size,
803                                 p->v_size, p->smpte_timecode,
804                                 p->picture_type, p->temporal_reference,
805                                 p->user_data);
806                 break;
807         }
808         case VIDIOCKEY:
809         {
810                 struct video_key *p=arg;
811                 printk ("%s: key=%s, flags=%d\n", s,
812                                 p->key, p->flags);
813                 break;
814         }
815         case VIDIOCGMBUF:
816         {
817                 struct video_mbuf *p=arg;
818                 printk ("%s: size=%d, frames=%d, offsets=0x%08lx\n", s,
819                                 p->size,
820                                 p->frames,
821                                 (unsigned long)p->offsets);
822                 break;
823         }
824         case VIDIOCMCAPTURE:
825         {
826                 struct video_mmap *p=arg;
827                 printk ("%s: frame=%d, height=%d, width=%d, format=%d\n", s,
828                                 p->frame,
829                                 p->height, p->width,
830                                 p->format);
831                 break;
832         }
833         case VIDIOCGPICT:
834         case VIDIOCSPICT:
835         case DECODER_SET_PICTURE:
836         {
837                 struct video_picture *p=arg;
838
839                 printk ("%s: brightness=%d, hue=%d, colour=%d, contrast=%d,"
840                         " whiteness=%d, depth=%d, palette=%d\n", s,
841                                 p->brightness, p->hue, p->colour,
842                                 p->contrast, p->whiteness, p->depth,
843                                 p->palette);
844                 break;
845         }
846         case VIDIOCSPLAYMODE:
847         {
848                 struct video_play_mode *p=arg;
849                 printk ("%s: mode=%d, p1=%d, p2=%d\n", s,
850                                 p->mode,p->p1,p->p2);
851                 break;
852         }
853         case VIDIOCGTUNER:
854         case VIDIOCSTUNER:
855         {
856                 struct video_tuner *p=arg;
857                 printk ("%s: tuner=%d, name=%s, rangelow=%ld, rangehigh=%ld, "
858                         "flags=%d, mode=%d, signal=%d\n", s,
859                                 p->tuner, p->name,p->rangelow, p->rangehigh,
860                                 p->flags,p->mode, p->signal);
861                 break;
862         }
863         case VIDIOCGUNIT:
864         {
865                 struct video_unit *p=arg;
866                 printk ("%s: video=%d, vbi=%d, radio=%d, audio=%d, "
867                         "teletext=%d\n", s,
868                                 p->video,p->vbi,p->radio,p->audio,p->teletext);
869                 break;
870         }
871         case VIDIOCGWIN:
872         case VIDIOCSWIN:
873         {
874                 struct video_window *p=arg;
875                 printk ("%s: x=%d, y=%d, width=%d, height=%d, chromakey=%d,"
876                         " flags=%d, clipcount=%d\n", s,
877                                 p->x, p->y,p->width, p->height,
878                                 p->chromakey,p->flags,
879                                 p->clipcount);
880                 break;
881         }
882         case VIDIOC_INT_AUDIO_CLOCK_FREQ:
883         case VIDIOC_INT_I2S_CLOCK_FREQ:
884         case VIDIOC_INT_S_STANDBY:
885         {
886                 u32 *p=arg;
887
888                 printk ("%s: value=%d\n", s, *p);
889                 break;
890         }
891         case VIDIOCGFREQ:
892         case VIDIOCSFREQ:
893         {
894                 unsigned long *p=arg;
895                 printk ("%s: value=%lu\n", s, *p);
896                 break;
897         }
898         case VIDIOC_G_STD:
899         case VIDIOC_S_STD:
900         case VIDIOC_QUERYSTD:
901         {
902                 v4l2_std_id *p=arg;
903
904                 printk ("%s: value=%Lu\n", s, (unsigned long long)*p);
905                 break;
906         }
907         }
908 }
909
910 /* ----------------------------------------------------------------- */
911
912 EXPORT_SYMBOL(v4l2_video_std_construct);
913
914 EXPORT_SYMBOL(v4l2_prio_init);
915 EXPORT_SYMBOL(v4l2_prio_change);
916 EXPORT_SYMBOL(v4l2_prio_open);
917 EXPORT_SYMBOL(v4l2_prio_close);
918 EXPORT_SYMBOL(v4l2_prio_max);
919 EXPORT_SYMBOL(v4l2_prio_check);
920
921 EXPORT_SYMBOL(v4l2_field_names);
922 EXPORT_SYMBOL(v4l2_type_names);
923 EXPORT_SYMBOL(v4l_printk_ioctl);
924 EXPORT_SYMBOL(v4l_printk_ioctl_arg);
925
926 /*
927  * Local variables:
928  * c-basic-offset: 8
929  * End:
930  */