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linux/drivers/media/video/v4l2-common.c
Mauro Carvalho Chehab 401998fa96 V4L/DVB (4065): Several improvements at videodev.c 
Videodev now is capable of better handling V4L2 api, by
processing V4L2 ioctls and using callbacks to the driver.
The drivers should be migrated to the newer way and the older
one will be obsoleted soon.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-06-25 02:05:04 -03:00

957 lines
27 KiB
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/*
* Video for Linux Two
*
* A generic video device interface for the LINUX operating system
* using a set of device structures/vectors for low level operations.
*
* This file replaces the videodev.c file that comes with the
* regular kernel distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
* Author: Bill Dirks <bdirks@pacbell.net>
* based on code by Alan Cox, <alan@cymru.net>
*
*/
/*
* Video capture interface for Linux
*
* A generic video device interface for the LINUX operating system
* using a set of device structures/vectors for low level operations.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
* Author: Alan Cox, <alan@redhat.com>
*
* Fixes:
*/
/*
* Video4linux 1/2 integration by Justin Schoeman
* <justin@suntiger.ee.up.ac.za>
* 2.4 PROCFS support ported from 2.4 kernels by
* Iñaki García Etxebarria <garetxe@euskalnet.net>
* Makefile fix by "W. Michael Petullo" <mike@flyn.org>
* 2.4 devfs support ported from 2.4 kernels by
* Dan Merillat <dan@merillat.org>
* Added Gerd Knorrs v4l1 enhancements (Justin Schoeman)
*/
#include <linux/config.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/smp_lock.h>
#include <linux/mm.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <asm/uaccess.h>
#include <asm/system.h>
#include <asm/pgtable.h>
#include <asm/io.h>
#include <asm/div64.h>
#include <linux/video_decoder.h>
#define __OLD_VIDIOC_ /* To allow fixing old calls*/
#include <media/v4l2-common.h>
#ifdef CONFIG_KMOD
#include <linux/kmod.h>
#endif
#if defined(CONFIG_UST) || defined(CONFIG_UST_MODULE)
#include <linux/ust.h>
#endif
#include <linux/videodev.h>
MODULE_AUTHOR("Bill Dirks, Justin Schoeman, Gerd Knorr");
MODULE_DESCRIPTION("misc helper functions for v4l2 device drivers");
MODULE_LICENSE("GPL");
/*
*
* V 4 L 2 D R I V E R H E L P E R A P I
*
*/
/*
* Video Standard Operations (contributed by Michael Schimek)
*/
/* Fill in the fields of a v4l2_standard structure according to the
'id' and 'transmission' parameters. Returns negative on error. */
int v4l2_video_std_construct(struct v4l2_standard *vs,
int id, char *name)
{
u32 index = vs->index;
memset(vs, 0, sizeof(struct v4l2_standard));
vs->index = index;
vs->id = id;
if (id & V4L2_STD_525_60) {
vs->frameperiod.numerator = 1001;
vs->frameperiod.denominator = 30000;
vs->framelines = 525;
} else {
vs->frameperiod.numerator = 1;
vs->frameperiod.denominator = 25;
vs->framelines = 625;
}
strlcpy(vs->name,name,sizeof(vs->name));
return 0;
}
/* ----------------------------------------------------------------- */
/* priority handling */
#define V4L2_PRIO_VALID(val) (val == V4L2_PRIORITY_BACKGROUND || \
val == V4L2_PRIORITY_INTERACTIVE || \
val == V4L2_PRIORITY_RECORD)
int v4l2_prio_init(struct v4l2_prio_state *global)
{
memset(global,0,sizeof(*global));
return 0;
}
int v4l2_prio_change(struct v4l2_prio_state *global, enum v4l2_priority *local,
enum v4l2_priority new)
{
if (!V4L2_PRIO_VALID(new))
return -EINVAL;
if (*local == new)
return 0;
atomic_inc(&global->prios[new]);
if (V4L2_PRIO_VALID(*local))
atomic_dec(&global->prios[*local]);
*local = new;
return 0;
}
int v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local)
{
return v4l2_prio_change(global,local,V4L2_PRIORITY_DEFAULT);
}
int v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority *local)
{
if (V4L2_PRIO_VALID(*local))
atomic_dec(&global->prios[*local]);
return 0;
}
enum v4l2_priority v4l2_prio_max(struct v4l2_prio_state *global)
{
if (atomic_read(&global->prios[V4L2_PRIORITY_RECORD]) > 0)
return V4L2_PRIORITY_RECORD;
if (atomic_read(&global->prios[V4L2_PRIORITY_INTERACTIVE]) > 0)
return V4L2_PRIORITY_INTERACTIVE;
if (atomic_read(&global->prios[V4L2_PRIORITY_BACKGROUND]) > 0)
return V4L2_PRIORITY_BACKGROUND;
return V4L2_PRIORITY_UNSET;
}
int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority *local)
{
if (*local < v4l2_prio_max(global))
return -EBUSY;
return 0;
}
/* ----------------------------------------------------------------- */
/* some arrays for pretty-printing debug messages of enum types */
char *v4l2_field_names[] = {
[V4L2_FIELD_ANY] = "any",
[V4L2_FIELD_NONE] = "none",
[V4L2_FIELD_TOP] = "top",
[V4L2_FIELD_BOTTOM] = "bottom",
[V4L2_FIELD_INTERLACED] = "interlaced",
[V4L2_FIELD_SEQ_TB] = "seq-tb",
[V4L2_FIELD_SEQ_BT] = "seq-bt",
[V4L2_FIELD_ALTERNATE] = "alternate",
};
char *v4l2_type_names[] = {
[V4L2_BUF_TYPE_VIDEO_CAPTURE] = "video-cap",
[V4L2_BUF_TYPE_VIDEO_OVERLAY] = "video-over",
[V4L2_BUF_TYPE_VIDEO_OUTPUT] = "video-out",
[V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap",
[V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out",
};
static char *v4l2_memory_names[] = {
[V4L2_MEMORY_MMAP] = "mmap",
[V4L2_MEMORY_USERPTR] = "userptr",
[V4L2_MEMORY_OVERLAY] = "overlay",
};
#define prt_names(a,arr) (((a)>=0)&&((a)<ARRAY_SIZE(arr)))?arr[a]:"unknown"
/* ------------------------------------------------------------------ */
/* debug help functions */
#ifdef HAVE_V4L1
static const char *v4l1_ioctls[] = {
[_IOC_NR(VIDIOCGCAP)] = "VIDIOCGCAP",
[_IOC_NR(VIDIOCGCHAN)] = "VIDIOCGCHAN",
[_IOC_NR(VIDIOCSCHAN)] = "VIDIOCSCHAN",
[_IOC_NR(VIDIOCGTUNER)] = "VIDIOCGTUNER",
[_IOC_NR(VIDIOCSTUNER)] = "VIDIOCSTUNER",
[_IOC_NR(VIDIOCGPICT)] = "VIDIOCGPICT",
[_IOC_NR(VIDIOCSPICT)] = "VIDIOCSPICT",
[_IOC_NR(VIDIOCCAPTURE)] = "VIDIOCCAPTURE",
[_IOC_NR(VIDIOCGWIN)] = "VIDIOCGWIN",
[_IOC_NR(VIDIOCSWIN)] = "VIDIOCSWIN",
[_IOC_NR(VIDIOCGFBUF)] = "VIDIOCGFBUF",
[_IOC_NR(VIDIOCSFBUF)] = "VIDIOCSFBUF",
[_IOC_NR(VIDIOCKEY)] = "VIDIOCKEY",
[_IOC_NR(VIDIOCGFREQ)] = "VIDIOCGFREQ",
[_IOC_NR(VIDIOCSFREQ)] = "VIDIOCSFREQ",
[_IOC_NR(VIDIOCGAUDIO)] = "VIDIOCGAUDIO",
[_IOC_NR(VIDIOCSAUDIO)] = "VIDIOCSAUDIO",
[_IOC_NR(VIDIOCSYNC)] = "VIDIOCSYNC",
[_IOC_NR(VIDIOCMCAPTURE)] = "VIDIOCMCAPTURE",
[_IOC_NR(VIDIOCGMBUF)] = "VIDIOCGMBUF",
[_IOC_NR(VIDIOCGUNIT)] = "VIDIOCGUNIT",
[_IOC_NR(VIDIOCGCAPTURE)] = "VIDIOCGCAPTURE",
[_IOC_NR(VIDIOCSCAPTURE)] = "VIDIOCSCAPTURE",
[_IOC_NR(VIDIOCSPLAYMODE)] = "VIDIOCSPLAYMODE",
[_IOC_NR(VIDIOCSWRITEMODE)] = "VIDIOCSWRITEMODE",
[_IOC_NR(VIDIOCGPLAYINFO)] = "VIDIOCGPLAYINFO",
[_IOC_NR(VIDIOCSMICROCODE)] = "VIDIOCSMICROCODE",
[_IOC_NR(VIDIOCGVBIFMT)] = "VIDIOCGVBIFMT",
[_IOC_NR(VIDIOCSVBIFMT)] = "VIDIOCSVBIFMT"
};
#define V4L1_IOCTLS ARRAY_SIZE(v4l1_ioctls)
#endif
static const char *v4l2_ioctls[] = {
[_IOC_NR(VIDIOC_QUERYCAP)] = "VIDIOC_QUERYCAP",
[_IOC_NR(VIDIOC_RESERVED)] = "VIDIOC_RESERVED",
[_IOC_NR(VIDIOC_ENUM_FMT)] = "VIDIOC_ENUM_FMT",
[_IOC_NR(VIDIOC_G_FMT)] = "VIDIOC_G_FMT",
[_IOC_NR(VIDIOC_S_FMT)] = "VIDIOC_S_FMT",
[_IOC_NR(VIDIOC_G_MPEGCOMP)] = "VIDIOC_G_MPEGCOMP",
[_IOC_NR(VIDIOC_S_MPEGCOMP)] = "VIDIOC_S_MPEGCOMP",
[_IOC_NR(VIDIOC_REQBUFS)] = "VIDIOC_REQBUFS",
[_IOC_NR(VIDIOC_QUERYBUF)] = "VIDIOC_QUERYBUF",
[_IOC_NR(VIDIOC_G_FBUF)] = "VIDIOC_G_FBUF",
[_IOC_NR(VIDIOC_S_FBUF)] = "VIDIOC_S_FBUF",
[_IOC_NR(VIDIOC_OVERLAY)] = "VIDIOC_OVERLAY",
[_IOC_NR(VIDIOC_QBUF)] = "VIDIOC_QBUF",
[_IOC_NR(VIDIOC_DQBUF)] = "VIDIOC_DQBUF",
[_IOC_NR(VIDIOC_STREAMON)] = "VIDIOC_STREAMON",
[_IOC_NR(VIDIOC_STREAMOFF)] = "VIDIOC_STREAMOFF",
[_IOC_NR(VIDIOC_G_PARM)] = "VIDIOC_G_PARM",
[_IOC_NR(VIDIOC_S_PARM)] = "VIDIOC_S_PARM",
[_IOC_NR(VIDIOC_G_STD)] = "VIDIOC_G_STD",
[_IOC_NR(VIDIOC_S_STD)] = "VIDIOC_S_STD",
[_IOC_NR(VIDIOC_ENUMSTD)] = "VIDIOC_ENUMSTD",
[_IOC_NR(VIDIOC_ENUMINPUT)] = "VIDIOC_ENUMINPUT",
[_IOC_NR(VIDIOC_G_CTRL)] = "VIDIOC_G_CTRL",
[_IOC_NR(VIDIOC_S_CTRL)] = "VIDIOC_S_CTRL",
[_IOC_NR(VIDIOC_G_TUNER)] = "VIDIOC_G_TUNER",
[_IOC_NR(VIDIOC_S_TUNER)] = "VIDIOC_S_TUNER",
[_IOC_NR(VIDIOC_G_AUDIO)] = "VIDIOC_G_AUDIO",
[_IOC_NR(VIDIOC_S_AUDIO)] = "VIDIOC_S_AUDIO",
[_IOC_NR(VIDIOC_QUERYCTRL)] = "VIDIOC_QUERYCTRL",
[_IOC_NR(VIDIOC_QUERYMENU)] = "VIDIOC_QUERYMENU",
[_IOC_NR(VIDIOC_G_INPUT)] = "VIDIOC_G_INPUT",
[_IOC_NR(VIDIOC_S_INPUT)] = "VIDIOC_S_INPUT",
[_IOC_NR(VIDIOC_G_OUTPUT)] = "VIDIOC_G_OUTPUT",
[_IOC_NR(VIDIOC_S_OUTPUT)] = "VIDIOC_S_OUTPUT",
[_IOC_NR(VIDIOC_ENUMOUTPUT)] = "VIDIOC_ENUMOUTPUT",
[_IOC_NR(VIDIOC_G_AUDOUT)] = "VIDIOC_G_AUDOUT",
[_IOC_NR(VIDIOC_S_AUDOUT)] = "VIDIOC_S_AUDOUT",
[_IOC_NR(VIDIOC_G_MODULATOR)] = "VIDIOC_G_MODULATOR",
[_IOC_NR(VIDIOC_S_MODULATOR)] = "VIDIOC_S_MODULATOR",
[_IOC_NR(VIDIOC_G_FREQUENCY)] = "VIDIOC_G_FREQUENCY",
[_IOC_NR(VIDIOC_S_FREQUENCY)] = "VIDIOC_S_FREQUENCY",
[_IOC_NR(VIDIOC_CROPCAP)] = "VIDIOC_CROPCAP",
[_IOC_NR(VIDIOC_G_CROP)] = "VIDIOC_G_CROP",
[_IOC_NR(VIDIOC_S_CROP)] = "VIDIOC_S_CROP",
[_IOC_NR(VIDIOC_G_JPEGCOMP)] = "VIDIOC_G_JPEGCOMP",
[_IOC_NR(VIDIOC_S_JPEGCOMP)] = "VIDIOC_S_JPEGCOMP",
[_IOC_NR(VIDIOC_QUERYSTD)] = "VIDIOC_QUERYSTD",
[_IOC_NR(VIDIOC_TRY_FMT)] = "VIDIOC_TRY_FMT",
[_IOC_NR(VIDIOC_ENUMAUDIO)] = "VIDIOC_ENUMAUDIO",
[_IOC_NR(VIDIOC_ENUMAUDOUT)] = "VIDIOC_ENUMAUDOUT",
[_IOC_NR(VIDIOC_G_PRIORITY)] = "VIDIOC_G_PRIORITY",
[_IOC_NR(VIDIOC_S_PRIORITY)] = "VIDIOC_S_PRIORITY",
#if 1
[_IOC_NR(VIDIOC_G_SLICED_VBI_CAP)] = "VIDIOC_G_SLICED_VBI_CAP",
#endif
[_IOC_NR(VIDIOC_LOG_STATUS)] = "VIDIOC_LOG_STATUS"
};
#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
static const char *v4l2_int_ioctls[] = {
#ifdef HAVE_VIDEO_DECODER
[_IOC_NR(DECODER_GET_CAPABILITIES)] = "DECODER_GET_CAPABILITIES",
[_IOC_NR(DECODER_GET_STATUS)] = "DECODER_GET_STATUS",
[_IOC_NR(DECODER_SET_NORM)] = "DECODER_SET_NORM",
[_IOC_NR(DECODER_SET_INPUT)] = "DECODER_SET_INPUT",
[_IOC_NR(DECODER_SET_OUTPUT)] = "DECODER_SET_OUTPUT",
[_IOC_NR(DECODER_ENABLE_OUTPUT)] = "DECODER_ENABLE_OUTPUT",
[_IOC_NR(DECODER_SET_PICTURE)] = "DECODER_SET_PICTURE",
[_IOC_NR(DECODER_SET_GPIO)] = "DECODER_SET_GPIO",
[_IOC_NR(DECODER_INIT)] = "DECODER_INIT",
[_IOC_NR(DECODER_SET_VBI_BYPASS)] = "DECODER_SET_VBI_BYPASS",
[_IOC_NR(DECODER_DUMP)] = "DECODER_DUMP",
#endif
[_IOC_NR(AUDC_SET_RADIO)] = "AUDC_SET_RADIO",
[_IOC_NR(TUNER_SET_TYPE_ADDR)] = "TUNER_SET_TYPE_ADDR",
[_IOC_NR(TUNER_SET_STANDBY)] = "TUNER_SET_STANDBY",
[_IOC_NR(TDA9887_SET_CONFIG)] = "TDA9887_SET_CONFIG",
[_IOC_NR(VIDIOC_INT_S_TUNER_MODE)] = "VIDIOC_INT_S_TUNER_MODE",
[_IOC_NR(VIDIOC_INT_S_REGISTER)] = "VIDIOC_INT_S_REGISTER",
[_IOC_NR(VIDIOC_INT_G_REGISTER)] = "VIDIOC_INT_G_REGISTER",
[_IOC_NR(VIDIOC_INT_RESET)] = "VIDIOC_INT_RESET",
[_IOC_NR(VIDIOC_INT_AUDIO_CLOCK_FREQ)] = "VIDIOC_INT_AUDIO_CLOCK_FREQ",
[_IOC_NR(VIDIOC_INT_DECODE_VBI_LINE)] = "VIDIOC_INT_DECODE_VBI_LINE",
[_IOC_NR(VIDIOC_INT_S_VBI_DATA)] = "VIDIOC_INT_S_VBI_DATA",
[_IOC_NR(VIDIOC_INT_G_VBI_DATA)] = "VIDIOC_INT_G_VBI_DATA",
[_IOC_NR(VIDIOC_INT_G_CHIP_IDENT)] = "VIDIOC_INT_G_CHIP_IDENT",
[_IOC_NR(VIDIOC_INT_I2S_CLOCK_FREQ)] = "VIDIOC_INT_I2S_CLOCK_FREQ",
[_IOC_NR(VIDIOC_INT_S_STANDBY)] = "VIDIOC_INT_S_STANDBY",
[_IOC_NR(VIDIOC_INT_S_AUDIO_ROUTING)] = "VIDIOC_INT_S_AUDIO_ROUTING",
[_IOC_NR(VIDIOC_INT_G_AUDIO_ROUTING)] = "VIDIOC_INT_G_AUDIO_ROUTING",
[_IOC_NR(VIDIOC_INT_S_VIDEO_ROUTING)] = "VIDIOC_INT_S_VIDEO_ROUTING",
[_IOC_NR(VIDIOC_INT_G_VIDEO_ROUTING)] = "VIDIOC_INT_G_VIDEO_ROUTING",
[_IOC_NR(VIDIOC_INT_S_CRYSTAL_FREQ)] = "VIDIOC_INT_S_CRYSTAL_FREQ"
};
#define V4L2_INT_IOCTLS ARRAY_SIZE(v4l2_int_ioctls)
static void v4l_print_pix_fmt (char *s, struct v4l2_pix_format *fmt)
{
printk ("%s: width=%d, height=%d, format=%d, field=%s, "
"bytesperline=%d sizeimage=%d, colorspace=%d\n", s,
fmt->width,fmt->height,fmt->pixelformat,
prt_names(fmt->field,v4l2_field_names),
fmt->bytesperline,fmt->sizeimage,fmt->colorspace);
};
/* Common ioctl debug function. This function can be used by
external ioctl messages as well as internal V4L ioctl */
void v4l_printk_ioctl(unsigned int cmd)
{
char *dir;
switch (_IOC_DIR(cmd)) {
case _IOC_NONE: dir = "--"; break;
case _IOC_READ: dir = "r-"; break;
case _IOC_WRITE: dir = "-w"; break;
case _IOC_READ | _IOC_WRITE: dir = "rw"; break;
default: dir = "*ERR*"; break;
}
switch (_IOC_TYPE(cmd)) {
case 'd':
printk("v4l2_int ioctl %s, dir=%s (0x%08x)\n",
(_IOC_NR(cmd) < V4L2_INT_IOCTLS) ?
v4l2_int_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd);
break;
#ifdef HAVE_V4L1
case 'v':
printk("v4l1 ioctl %s, dir=%s (0x%08x)\n",
(_IOC_NR(cmd) < V4L1_IOCTLS) ?
v4l1_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd);
break;
#endif
case 'V':
printk("v4l2 ioctl %s, dir=%s (0x%08x)\n",
(_IOC_NR(cmd) < V4L2_IOCTLS) ?
v4l2_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd);
break;
default:
printk("unknown ioctl '%c', dir=%s, #%d (0x%08x)\n",
_IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd);
}
}
/* Common ioctl debug function. This function can be used by
external ioctl messages as well as internal V4L ioctl and its
arguments */
void v4l_printk_ioctl_arg(char *s,unsigned int cmd, void *arg)
{
printk(s);
printk(": ");
v4l_printk_ioctl(cmd);
switch (cmd) {
case VIDIOC_INT_G_CHIP_IDENT:
{
enum v4l2_chip_ident *p=arg;
printk ("%s: chip ident=%d\n", s, *p);
break;
}
case VIDIOC_G_PRIORITY:
case VIDIOC_S_PRIORITY:
{
enum v4l2_priority *p=arg;
printk ("%s: priority=%d\n", s, *p);
break;
}
case VIDIOC_INT_S_TUNER_MODE:
{
enum v4l2_tuner_type *p=arg;
printk ("%s: tuner type=%d\n", s, *p);
break;
}
case DECODER_SET_VBI_BYPASS:
case DECODER_ENABLE_OUTPUT:
case DECODER_GET_STATUS:
case DECODER_SET_OUTPUT:
case DECODER_SET_INPUT:
case DECODER_SET_GPIO:
case DECODER_SET_NORM:
case VIDIOCCAPTURE:
case VIDIOCSYNC:
case VIDIOCSWRITEMODE:
case TUNER_SET_TYPE_ADDR:
case TUNER_SET_STANDBY:
case TDA9887_SET_CONFIG:
#ifdef __OLD_VIDIOC_
case VIDIOC_OVERLAY_OLD:
#endif
case VIDIOC_STREAMOFF:
case VIDIOC_G_OUTPUT:
case VIDIOC_S_OUTPUT:
case VIDIOC_STREAMON:
case VIDIOC_G_INPUT:
case VIDIOC_OVERLAY:
case VIDIOC_S_INPUT:
{
int *p=arg;
printk ("%s: value=%d\n", s, *p);
break;
}
case VIDIOC_G_AUDIO:
case VIDIOC_S_AUDIO:
case VIDIOC_ENUMAUDIO:
#ifdef __OLD_VIDIOC_
case VIDIOC_G_AUDIO_OLD:
#endif
{
struct v4l2_audio *p=arg;
printk ("%s: index=%d, name=%s, capability=%d, mode=%d\n",
s,p->index, p->name,p->capability, p->mode);
break;
}
case VIDIOC_G_AUDOUT:
case VIDIOC_S_AUDOUT:
case VIDIOC_ENUMAUDOUT:
#ifdef __OLD_VIDIOC_
case VIDIOC_G_AUDOUT_OLD:
#endif
{
struct v4l2_audioout *p=arg;
printk ("%s: index=%d, name=%s, capability=%d, mode=%d\n", s,
p->index, p->name, p->capability,p->mode);
break;
}
case VIDIOC_QBUF:
case VIDIOC_DQBUF:
case VIDIOC_QUERYBUF:
{
struct v4l2_buffer *p=arg;
struct v4l2_timecode *tc=&p->timecode;
printk ("%s: %02ld:%02d:%02d.%08ld index=%d, type=%s, "
"bytesused=%d, flags=0x%08x, "
"field=%0d, sequence=%d, memory=%s, offset/userptr=0x%08lx\n",
s,
(p->timestamp.tv_sec/3600),
(int)(p->timestamp.tv_sec/60)%60,
(int)(p->timestamp.tv_sec%60),
p->timestamp.tv_usec,
p->index,
prt_names(p->type,v4l2_type_names),
p->bytesused,p->flags,
p->field,p->sequence,
prt_names(p->memory,v4l2_memory_names),
p->m.userptr);
printk ("%s: timecode= %02d:%02d:%02d type=%d, "
"flags=0x%08x, frames=%d, userbits=0x%p\n",
s,tc->hours,tc->minutes,tc->seconds,
tc->type, tc->flags, tc->frames, tc->userbits);
break;
}
case VIDIOC_QUERYCAP:
{
struct v4l2_capability *p=arg;
printk ("%s: driver=%s, card=%s, bus=%s, version=0x%08x, "
"capabilities=0x%08x\n", s,
p->driver,p->card,p->bus_info,
p->version,
p->capabilities);
break;
}
case VIDIOC_G_CTRL:
case VIDIOC_S_CTRL:
#ifdef __OLD_VIDIOC_
case VIDIOC_S_CTRL_OLD:
#endif
{
struct v4l2_control *p=arg;
printk ("%s: id=%d, value=%d\n", s, p->id, p->value);
break;
}
case VIDIOC_G_CROP:
case VIDIOC_S_CROP:
{
struct v4l2_crop *p=arg;
/*FIXME: Should also show rect structs */
printk ("%s: type=%d\n", s, p->type);
break;
}
case VIDIOC_CROPCAP:
#ifdef __OLD_VIDIOC_
case VIDIOC_CROPCAP_OLD:
#endif
{
struct v4l2_cropcap *p=arg;
/*FIXME: Should also show rect structs */
printk ("%s: type=%d\n", s, p->type);
break;
}
case VIDIOC_INT_DECODE_VBI_LINE:
{
struct v4l2_decode_vbi_line *p=arg;
printk ("%s: is_second_field=%d, ptr=0x%08lx, line=%d, "
"type=%d\n", s,
p->is_second_field,(unsigned long)p->p,p->line,p->type);
break;
}
case VIDIOC_ENUM_FMT:
{
struct v4l2_fmtdesc *p=arg;
printk ("%s: index=%d, type=%d, flags=%d, description=%s,"
" pixelformat=%d\n", s,
p->index, p->type, p->flags,p->description,
p->pixelformat);
break;
}
case VIDIOC_G_FMT:
case VIDIOC_S_FMT:
case VIDIOC_TRY_FMT:
{
struct v4l2_format *p=arg;
printk ("%s: type=%s\n", s,
prt_names(p->type,v4l2_type_names));
switch (p->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
v4l_print_pix_fmt (s, &p->fmt.pix);
break;
default:
break;
}
}
case VIDIOC_G_FBUF:
case VIDIOC_S_FBUF:
{
struct v4l2_framebuffer *p=arg;
printk ("%s: capability=%d, flags=%d, base=0x%08lx\n", s,
p->capability,p->flags, (unsigned long)p->base);
v4l_print_pix_fmt (s, &p->fmt);
break;
}
case VIDIOC_G_FREQUENCY:
case VIDIOC_S_FREQUENCY:
{
struct v4l2_frequency *p=arg;
printk ("%s: tuner=%d, type=%d, frequency=%d\n", s,
p->tuner,p->type,p->frequency);
break;
}
case VIDIOC_ENUMINPUT:
{
struct v4l2_input *p=arg;
printk ("%s: index=%d, name=%s, type=%d, audioset=%d, "
"tuner=%d, std=%Ld, status=%d\n", s,
p->index,p->name,p->type,p->audioset,
p->tuner,
(unsigned long long)p->std,
p->status);
break;
}
case VIDIOC_G_JPEGCOMP:
case VIDIOC_S_JPEGCOMP:
{
struct v4l2_jpegcompression *p=arg;
printk ("%s: quality=%d, APPn=%d, APP_len=%d, COM_len=%d,"
" jpeg_markers=%d\n", s,
p->quality,p->APPn,p->APP_len,
p->COM_len,p->jpeg_markers);
break;
}
case VIDIOC_G_MODULATOR:
case VIDIOC_S_MODULATOR:
{
struct v4l2_modulator *p=arg;
printk ("%s: index=%d, name=%s, capability=%d, rangelow=%d,"
" rangehigh=%d, txsubchans=%d\n", s,
p->index, p->name,p->capability,p->rangelow,
p->rangehigh,p->txsubchans);
break;
}
case VIDIOC_G_MPEGCOMP:
case VIDIOC_S_MPEGCOMP:
{
struct v4l2_mpeg_compression *p=arg;
/*FIXME: Several fields not shown */
printk ("%s: ts_pid_pmt=%d, ts_pid_audio=%d, ts_pid_video=%d, "
"ts_pid_pcr=%d, ps_size=%d, au_sample_rate=%d, "
"au_pesid=%c, vi_frame_rate=%d, vi_frames_per_gop=%d, "
"vi_bframes_count=%d, vi_pesid=%c\n", s,
p->ts_pid_pmt,p->ts_pid_audio, p->ts_pid_video,
p->ts_pid_pcr, p->ps_size, p->au_sample_rate,
p->au_pesid, p->vi_frame_rate,
p->vi_frames_per_gop, p->vi_bframes_count,
p->vi_pesid);
break;
}
case VIDIOC_ENUMOUTPUT:
{
struct v4l2_output *p=arg;
printk ("%s: index=%d, name=%s,type=%d, audioset=%d, "
"modulator=%d, std=%Ld\n",
s,p->index,p->name,p->type,p->audioset,
p->modulator,
(unsigned long long)p->std);
break;
}
case VIDIOC_QUERYCTRL:
{
struct v4l2_queryctrl *p=arg;
printk ("%s: id=%d, type=%d, name=%s, min/max=%d/%d,"
" step=%d, default=%d, flags=0x%08x\n", s,
p->id,p->type,p->name,p->minimum,p->maximum,
p->step,p->default_value,p->flags);
break;
}
case VIDIOC_QUERYMENU:
{
struct v4l2_querymenu *p=arg;
printk ("%s: id=%d, index=%d, name=%s\n", s,
p->id,p->index,p->name);
break;
}
case VIDIOC_INT_G_REGISTER:
case VIDIOC_INT_S_REGISTER:
{
struct v4l2_register *p=arg;
printk ("%s: i2c_id=%d, reg=%lu, val=%d\n", s,
p->i2c_id,p->reg,p->val);
break;
}
case VIDIOC_REQBUFS:
{
struct v4l2_requestbuffers *p=arg;
printk ("%s: count=%d, type=%s, memory=%s\n", s,
p->count,
prt_names(p->type,v4l2_type_names),
prt_names(p->memory,v4l2_memory_names));
break;
}
case VIDIOC_INT_S_AUDIO_ROUTING:
case VIDIOC_INT_S_VIDEO_ROUTING:
case VIDIOC_INT_G_AUDIO_ROUTING:
case VIDIOC_INT_G_VIDEO_ROUTING:
{
struct v4l2_routing *p=arg;
printk ("%s: input=0x%x, output=0x%x\n", s, p->input, p->output);
break;
}
case VIDIOC_INT_S_CRYSTAL_FREQ:
{
struct v4l2_crystal_freq *p=arg;
printk ("%s: freq=%u, flags=0x%x\n", s, p->freq, p->flags);
break;
}
case VIDIOC_G_SLICED_VBI_CAP:
{
struct v4l2_sliced_vbi_cap *p=arg;
printk ("%s: service_set=%d\n", s,
p->service_set);
break;
}
case VIDIOC_INT_S_VBI_DATA:
case VIDIOC_INT_G_VBI_DATA:
{
struct v4l2_sliced_vbi_data *p=arg;
printk ("%s: id=%d, field=%d, line=%d\n", s,
p->id, p->field, p->line);
break;
}
case VIDIOC_ENUMSTD:
{
struct v4l2_standard *p=arg;
printk ("%s: index=%d, id=%Ld, name=%s, fps=%d/%d, "
"framelines=%d\n", s, p->index,
(unsigned long long)p->id, p->name,
p->frameperiod.numerator,
p->frameperiod.denominator,
p->framelines);
break;
}
case VIDIOC_G_PARM:
case VIDIOC_S_PARM:
#ifdef __OLD_VIDIOC_
case VIDIOC_S_PARM_OLD:
#endif
{
struct v4l2_streamparm *p=arg;
printk ("%s: type=%d\n", s, p->type);
break;
}
case VIDIOC_G_TUNER:
case VIDIOC_S_TUNER:
{
struct v4l2_tuner *p=arg;
printk ("%s: index=%d, name=%s, type=%d, capability=%d, "
"rangelow=%d, rangehigh=%d, signal=%d, afc=%d, "
"rxsubchans=%d, audmode=%d\n", s,
p->index, p->name, p->type,
p->capability, p->rangelow,p->rangehigh,
p->rxsubchans, p->audmode, p->signal,
p->afc);
break;
}
case VIDIOCGVBIFMT:
case VIDIOCSVBIFMT:
{
struct vbi_format *p=arg;
printk ("%s: sampling_rate=%d, samples_per_line=%d, "
"sample_format=%d, start=%d/%d, count=%d/%d, flags=%d\n", s,
p->sampling_rate,p->samples_per_line,
p->sample_format,p->start[0],p->start[1],
p->count[0],p->count[1],p->flags);
break;
}
case VIDIOCGAUDIO:
case VIDIOCSAUDIO:
{
struct video_audio *p=arg;
printk ("%s: audio=%d, volume=%d, bass=%d, treble=%d, "
"flags=%d, name=%s, mode=%d, balance=%d, step=%d\n",
s,p->audio,p->volume,p->bass, p->treble,
p->flags,p->name,p->mode,p->balance,p->step);
break;
}
case VIDIOCGFBUF:
case VIDIOCSFBUF:
{
struct video_buffer *p=arg;
printk ("%s: base=%08lx, height=%d, width=%d, depth=%d, "
"bytesperline=%d\n", s,
(unsigned long) p->base, p->height, p->width,
p->depth,p->bytesperline);
break;
}
case VIDIOCGCAP:
{
struct video_capability *p=arg;
printk ("%s: name=%s, type=%d, channels=%d, audios=%d, "
"maxwidth=%d, maxheight=%d, minwidth=%d, minheight=%d\n",
s,p->name,p->type,p->channels,p->audios,
p->maxwidth,p->maxheight,p->minwidth,
p->minheight);
break;
}
case VIDIOCGCAPTURE:
case VIDIOCSCAPTURE:
{
struct video_capture *p=arg;
printk ("%s: x=%d, y=%d, width=%d, height=%d, decimation=%d,"
" flags=%d\n", s,
p->x, p->y,p->width, p->height,
p->decimation,p->flags);
break;
}
case VIDIOCGCHAN:
case VIDIOCSCHAN:
{
struct video_channel *p=arg;
printk ("%s: channel=%d, name=%s, tuners=%d, flags=%d, "
"type=%d, norm=%d\n", s,
p->channel,p->name,p->tuners,
p->flags,p->type,p->norm);
break;
}
case VIDIOCSMICROCODE:
{
struct video_code *p=arg;
printk ("%s: loadwhat=%s, datasize=%d\n", s,
p->loadwhat,p->datasize);
break;
}
case DECODER_GET_CAPABILITIES:
{
struct video_decoder_capability *p=arg;
printk ("%s: flags=%d, inputs=%d, outputs=%d\n", s,
p->flags,p->inputs,p->outputs);
break;
}
case DECODER_INIT:
{
struct video_decoder_init *p=arg;
printk ("%s: len=%c\n", s, p->len);
break;
}
case VIDIOCGPLAYINFO:
{
struct video_info *p=arg;
printk ("%s: frame_count=%d, h_size=%d, v_size=%d, "
"smpte_timecode=%d, picture_type=%d, "
"temporal_reference=%d, user_data=%s\n", s,
p->frame_count, p->h_size,
p->v_size, p->smpte_timecode,
p->picture_type, p->temporal_reference,
p->user_data);
break;
}
case VIDIOCKEY:
{
struct video_key *p=arg;
printk ("%s: key=%s, flags=%d\n", s,
p->key, p->flags);
break;
}
case VIDIOCGMBUF:
{
struct video_mbuf *p=arg;
printk ("%s: size=%d, frames=%d, offsets=0x%08lx\n", s,
p->size,
p->frames,
(unsigned long)p->offsets);
break;
}
case VIDIOCMCAPTURE:
{
struct video_mmap *p=arg;
printk ("%s: frame=%d, height=%d, width=%d, format=%d\n", s,
p->frame,
p->height, p->width,
p->format);
break;
}
case VIDIOCGPICT:
case VIDIOCSPICT:
case DECODER_SET_PICTURE:
{
struct video_picture *p=arg;
printk ("%s: brightness=%d, hue=%d, colour=%d, contrast=%d,"
" whiteness=%d, depth=%d, palette=%d\n", s,
p->brightness, p->hue, p->colour,
p->contrast, p->whiteness, p->depth,
p->palette);
break;
}
case VIDIOCSPLAYMODE:
{
struct video_play_mode *p=arg;
printk ("%s: mode=%d, p1=%d, p2=%d\n", s,
p->mode,p->p1,p->p2);
break;
}
case VIDIOCGTUNER:
case VIDIOCSTUNER:
{
struct video_tuner *p=arg;
printk ("%s: tuner=%d, name=%s, rangelow=%ld, rangehigh=%ld, "
"flags=%d, mode=%d, signal=%d\n", s,
p->tuner, p->name,p->rangelow, p->rangehigh,
p->flags,p->mode, p->signal);
break;
}
case VIDIOCGUNIT:
{
struct video_unit *p=arg;
printk ("%s: video=%d, vbi=%d, radio=%d, audio=%d, "
"teletext=%d\n", s,
p->video,p->vbi,p->radio,p->audio,p->teletext);
break;
}
case VIDIOCGWIN:
case VIDIOCSWIN:
{
struct video_window *p=arg;
printk ("%s: x=%d, y=%d, width=%d, height=%d, chromakey=%d,"
" flags=%d, clipcount=%d\n", s,
p->x, p->y,p->width, p->height,
p->chromakey,p->flags,
p->clipcount);
break;
}
case VIDIOC_INT_AUDIO_CLOCK_FREQ:
case VIDIOC_INT_I2S_CLOCK_FREQ:
case VIDIOC_INT_S_STANDBY:
{
u32 *p=arg;
printk ("%s: value=%d\n", s, *p);
break;
}
case VIDIOCGFREQ:
case VIDIOCSFREQ:
{
unsigned long *p=arg;
printk ("%s: value=%lu\n", s, *p);
break;
}
case VIDIOC_G_STD:
case VIDIOC_S_STD:
case VIDIOC_QUERYSTD:
{
v4l2_std_id *p=arg;
printk ("%s: value=%Lu\n", s, (unsigned long long)*p);
break;
}
}
}
/* ----------------------------------------------------------------- */
EXPORT_SYMBOL(v4l2_video_std_construct);
EXPORT_SYMBOL(v4l2_prio_init);
EXPORT_SYMBOL(v4l2_prio_change);
EXPORT_SYMBOL(v4l2_prio_open);
EXPORT_SYMBOL(v4l2_prio_close);
EXPORT_SYMBOL(v4l2_prio_max);
EXPORT_SYMBOL(v4l2_prio_check);
EXPORT_SYMBOL(v4l2_field_names);
EXPORT_SYMBOL(v4l2_type_names);
EXPORT_SYMBOL(v4l_printk_ioctl);
EXPORT_SYMBOL(v4l_printk_ioctl_arg);
/*
* Local variables:
* c-basic-offset: 8
* End:
*/
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