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c7b0ac0546
linux/drivers/media/video/v4l2-common.c
Mauro Carvalho Chehab c7b0ac0546 V4L/DVB (3516): Make video_buf more generic 
Video_buf were concerned to allow PCI devices to be used as
video capture devices. This patch extends video_buf features
by virtualizing pci-dependent functions and allowing other
type of devices to use it.
It is still DMA centric, although it may be used also by
devices that emulates scatter/gather behavior or a DMA device

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-03-24 16:26:49 -03:00

937 lines
26 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>
#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(AUDC_SET_INPUT)] = "AUDC_SET_INPUT",
[_IOC_NR(MSP_SET_MATRIX)] = "MSP_SET_MATRIX",
[_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_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"
};
#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:
case AUDC_SET_INPUT:
case VIDIOC_OVERLAY_OLD:
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 MSP_SET_MATRIX:
{
struct msp_matrix *p=arg;
printk ("%s: input=%d, output=%d\n", s, p->input, p->output);
break;
}
case VIDIOC_G_AUDIO:
case VIDIOC_S_AUDIO:
case VIDIOC_ENUMAUDIO:
case VIDIOC_G_AUDIO_OLD:
{
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:
case VIDIOC_G_AUDOUT_OLD:
{
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%08d, "
"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%08d, frames=%d, userbits=0x%08x\n",
s,tc->hours,tc->minutes,tc->seconds,
tc->type, tc->flags, tc->frames, (__u32) 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:
case VIDIOC_S_CTRL_OLD:
{
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:
case VIDIOC_CROPCAP_OLD:
{
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=%lld, status=%d\n", s,
p->index,p->name,p->type,p->audioset,
p->tuner,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=%lld\n",
s,p->index,p->name,p->type,p->audioset,
p->modulator,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=%d, output=%d\n", s, p->input, p->output);
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=%lld, name=%s, fps=%d/%d, framelines=%d\n", s,
p->index, p->id, p->name,
p->frameperiod.numerator,
p->frameperiod.denominator,
p->framelines);
break;
}
case VIDIOC_G_PARM:
case VIDIOC_S_PARM:
case VIDIOC_S_PARM_OLD:
{
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=%llu\n", s, *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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