?? videodev2.h
字號:
struct v4l2_rect defrect;
struct v4l2_fract pixelaspect;
};
struct v4l2_crop {
enum v4l2_buf_type type;
struct v4l2_rect c;
};
/*
* A N A L O G V I D E O S T A N D A R D
*/
typedef __u64 v4l2_std_id;
/* one bit for each */
#define V4L2_STD_PAL_B ((v4l2_std_id)0x00000001)
#define V4L2_STD_PAL_B1 ((v4l2_std_id)0x00000002)
#define V4L2_STD_PAL_G ((v4l2_std_id)0x00000004)
#define V4L2_STD_PAL_H ((v4l2_std_id)0x00000008)
#define V4L2_STD_PAL_I ((v4l2_std_id)0x00000010)
#define V4L2_STD_PAL_D ((v4l2_std_id)0x00000020)
#define V4L2_STD_PAL_D1 ((v4l2_std_id)0x00000040)
#define V4L2_STD_PAL_K ((v4l2_std_id)0x00000080)
#define V4L2_STD_PAL_M ((v4l2_std_id)0x00000100)
#define V4L2_STD_PAL_N ((v4l2_std_id)0x00000200)
#define V4L2_STD_PAL_Nc ((v4l2_std_id)0x00000400)
#define V4L2_STD_PAL_60 ((v4l2_std_id)0x00000800)
#define V4L2_STD_NTSC_M ((v4l2_std_id)0x00001000)
#define V4L2_STD_NTSC_M_JP ((v4l2_std_id)0x00002000)
#define V4L2_STD_SECAM_B ((v4l2_std_id)0x00010000)
#define V4L2_STD_SECAM_D ((v4l2_std_id)0x00020000)
#define V4L2_STD_SECAM_G ((v4l2_std_id)0x00040000)
#define V4L2_STD_SECAM_H ((v4l2_std_id)0x00080000)
#define V4L2_STD_SECAM_K ((v4l2_std_id)0x00100000)
#define V4L2_STD_SECAM_K1 ((v4l2_std_id)0x00200000)
#define V4L2_STD_SECAM_L ((v4l2_std_id)0x00400000)
/* ATSC/HDTV */
#define V4L2_STD_ATSC_8_VSB ((v4l2_std_id)0x01000000)
#define V4L2_STD_ATSC_16_VSB ((v4l2_std_id)0x02000000)
/* some common needed stuff */
#define V4L2_STD_PAL_BG (V4L2_STD_PAL_B |\
V4L2_STD_PAL_B1 |\
V4L2_STD_PAL_G)
#define V4L2_STD_PAL_DK (V4L2_STD_PAL_D |\
V4L2_STD_PAL_D1 |\
V4L2_STD_PAL_K)
#define V4L2_STD_PAL (V4L2_STD_PAL_BG |\
V4L2_STD_PAL_DK |\
V4L2_STD_PAL_H |\
V4L2_STD_PAL_I)
#define V4L2_STD_NTSC (V4L2_STD_NTSC_M |\
V4L2_STD_NTSC_M_JP)
#define V4L2_STD_SECAM (V4L2_STD_SECAM_B |\
V4L2_STD_SECAM_D |\
V4L2_STD_SECAM_G |\
V4L2_STD_SECAM_H |\
V4L2_STD_SECAM_K |\
V4L2_STD_SECAM_K1 |\
V4L2_STD_SECAM_L)
#define V4L2_STD_525_60 (V4L2_STD_PAL_M |\
V4L2_STD_PAL_60 |\
V4L2_STD_NTSC)
#define V4L2_STD_625_50 (V4L2_STD_PAL |\
V4L2_STD_PAL_N |\
V4L2_STD_PAL_Nc |\
V4L2_STD_SECAM)
#define V4L2_STD_UNKNOWN 0
#define V4L2_STD_ALL (V4L2_STD_525_60 |\
V4L2_STD_625_50)
struct v4l2_standard
{
__u32 index;
v4l2_std_id id;
__u8 name[24];
struct v4l2_fract frameperiod; /* Frames, not fields */
__u32 framelines;
__u32 reserved[4];
};
/*
* V I D E O I N P U T S
*/
struct v4l2_input
{
__u32 index; /* Which input */
__u8 name[32]; /* Label */
__u32 type; /* Type of input */
__u32 audioset; /* Associated audios (bitfield) */
__u32 tuner; /* Associated tuner */
v4l2_std_id std;
__u32 status;
__u32 reserved[4];
};
/* Values for the 'type' field */
#define V4L2_INPUT_TYPE_TUNER 1
#define V4L2_INPUT_TYPE_CAMERA 2
/* field 'status' - general */
#define V4L2_IN_ST_NO_POWER 0x00000001 /* Attached device is off */
#define V4L2_IN_ST_NO_SIGNAL 0x00000002
#define V4L2_IN_ST_NO_COLOR 0x00000004
/* field 'status' - analog */
#define V4L2_IN_ST_NO_H_LOCK 0x00000100 /* No horizontal sync lock */
#define V4L2_IN_ST_COLOR_KILL 0x00000200 /* Color killer is active */
/* field 'status' - digital */
#define V4L2_IN_ST_NO_SYNC 0x00010000 /* No synchronization lock */
#define V4L2_IN_ST_NO_EQU 0x00020000 /* No equalizer lock */
#define V4L2_IN_ST_NO_CARRIER 0x00040000 /* Carrier recovery failed */
/* field 'status' - VCR and set-top box */
#define V4L2_IN_ST_MACROVISION 0x01000000 /* Macrovision detected */
#define V4L2_IN_ST_NO_ACCESS 0x02000000 /* Conditional access denied */
#define V4L2_IN_ST_VTR 0x04000000 /* VTR time constant */
/*
* V I D E O O U T P U T S
*/
struct v4l2_output
{
__u32 index; /* Which output */
__u8 name[32]; /* Label */
__u32 type; /* Type of output */
__u32 audioset; /* Associated audios (bitfield) */
__u32 modulator; /* Associated modulator */
v4l2_std_id std;
__u32 reserved[4];
};
/* Values for the 'type' field */
#define V4L2_OUTPUT_TYPE_MODULATOR 1
#define V4L2_OUTPUT_TYPE_ANALOG 2
#define V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY 3
/*
* C O N T R O L S
*/
struct v4l2_control
{
__u32 id;
__s32 value;
};
/* Used in the VIDIOC_QUERYCTRL ioctl for querying controls */
struct v4l2_queryctrl
{
__u32 id;
enum v4l2_ctrl_type type;
__u8 name[32]; /* Whatever */
__s32 minimum; /* Note signedness */
__s32 maximum;
__s32 step;
__s32 default_value;
__u32 flags;
__u32 reserved[2];
};
/* Used in the VIDIOC_QUERYMENU ioctl for querying menu items */
struct v4l2_querymenu
{
__u32 id;
__u32 index;
__u8 name[32]; /* Whatever */
__u32 reserved;
};
/* Control flags */
#define V4L2_CTRL_FLAG_DISABLED 0x0001
#define V4L2_CTRL_FLAG_GRABBED 0x0002
/* Control IDs defined by V4L2 */
#define V4L2_CID_BASE 0x00980900
/* IDs reserved for driver specific controls */
#define V4L2_CID_PRIVATE_BASE 0x08000000
#define V4L2_CID_BRIGHTNESS (V4L2_CID_BASE+0)
#define V4L2_CID_CONTRAST (V4L2_CID_BASE+1)
#define V4L2_CID_SATURATION (V4L2_CID_BASE+2)
#define V4L2_CID_HUE (V4L2_CID_BASE+3)
#define V4L2_CID_AUDIO_VOLUME (V4L2_CID_BASE+5)
#define V4L2_CID_AUDIO_BALANCE (V4L2_CID_BASE+6)
#define V4L2_CID_AUDIO_BASS (V4L2_CID_BASE+7)
#define V4L2_CID_AUDIO_TREBLE (V4L2_CID_BASE+8)
#define V4L2_CID_AUDIO_MUTE (V4L2_CID_BASE+9)
#define V4L2_CID_AUDIO_LOUDNESS (V4L2_CID_BASE+10)
#define V4L2_CID_BLACK_LEVEL (V4L2_CID_BASE+11)
#define V4L2_CID_AUTO_WHITE_BALANCE (V4L2_CID_BASE+12)
#define V4L2_CID_DO_WHITE_BALANCE (V4L2_CID_BASE+13)
#define V4L2_CID_RED_BALANCE (V4L2_CID_BASE+14)
#define V4L2_CID_BLUE_BALANCE (V4L2_CID_BASE+15)
#define V4L2_CID_GAMMA (V4L2_CID_BASE+16)
#define V4L2_CID_WHITENESS (V4L2_CID_GAMMA) /* ? Not sure */
#define V4L2_CID_EXPOSURE (V4L2_CID_BASE+17)
#define V4L2_CID_AUTOGAIN (V4L2_CID_BASE+18)
#define V4L2_CID_GAIN (V4L2_CID_BASE+19)
#define V4L2_CID_HFLIP (V4L2_CID_BASE+20)
#define V4L2_CID_VFLIP (V4L2_CID_BASE+21)
#define V4L2_CID_HCENTER (V4L2_CID_BASE+22)
#define V4L2_CID_VCENTER (V4L2_CID_BASE+23)
#define V4L2_CID_LASTP1 (V4L2_CID_BASE+24) /* last CID + 1 */
/*
* T U N I N G
*/
struct v4l2_tuner
{
__u32 index;
__u8 name[32];
enum v4l2_tuner_type type;
__u32 capability;
__u32 rangelow;
__u32 rangehigh;
__u32 rxsubchans;
__u32 audmode;
__s32 signal;
__s32 afc;
__u32 reserved[4];
};
struct v4l2_modulator
{
__u32 index;
__u8 name[32];
__u32 capability;
__u32 rangelow;
__u32 rangehigh;
__u32 txsubchans;
__u32 reserved[4];
};
/* Flags for the 'capability' field */
#define V4L2_TUNER_CAP_LOW 0x0001
#define V4L2_TUNER_CAP_NORM 0x0002
#define V4L2_TUNER_CAP_STEREO 0x0010
#define V4L2_TUNER_CAP_LANG2 0x0020
#define V4L2_TUNER_CAP_SAP 0x0020
#define V4L2_TUNER_CAP_LANG1 0x0040
/* Flags for the 'rxsubchans' field */
#define V4L2_TUNER_SUB_MONO 0x0001
#define V4L2_TUNER_SUB_STEREO 0x0002
#define V4L2_TUNER_SUB_LANG2 0x0004
#define V4L2_TUNER_SUB_SAP 0x0004
#define V4L2_TUNER_SUB_LANG1 0x0008
/* Values for the 'audmode' field */
#define V4L2_TUNER_MODE_MONO 0x0000
#define V4L2_TUNER_MODE_STEREO 0x0001
#define V4L2_TUNER_MODE_LANG2 0x0002
#define V4L2_TUNER_MODE_SAP 0x0002
#define V4L2_TUNER_MODE_LANG1 0x0003
struct v4l2_frequency
{
__u32 tuner;
enum v4l2_tuner_type type;
__u32 frequency;
__u32 reserved[8];
};
/*
* A U D I O
*/
struct v4l2_audio
{
__u32 index;
__u8 name[32];
__u32 capability;
__u32 mode;
__u32 reserved[2];
};
/* Flags for the 'capability' field */
#define V4L2_AUDCAP_STEREO 0x00001
#define V4L2_AUDCAP_AVL 0x00002
/* Flags for the 'mode' field */
#define V4L2_AUDMODE_AVL 0x00001
struct v4l2_audioout
{
__u32 index;
__u8 name[32];
__u32 capability;
__u32 mode;
__u32 reserved[2];
};
/*
* D A T A S E R V I C E S ( V B I )
*
* Data services API by Michael Schimek
*/
struct v4l2_vbi_format
{
__u32 sampling_rate; /* in 1 Hz */
__u32 offset;
__u32 samples_per_line;
__u32 sample_format; /* V4L2_PIX_FMT_* */
__s32 start[2];
__u32 count[2];
__u32 flags; /* V4L2_VBI_* */
__u32 reserved[2]; /* must be zero */
};
/* VBI flags */
#define V4L2_VBI_UNSYNC (1<< 0)
#define V4L2_VBI_INTERLACED (1<< 1)
/*
* A G G R E G A T E S T R U C T U R E S
*/
/* Stream data format
*/
struct v4l2_format
{
enum v4l2_buf_type type;
union
{
struct v4l2_pix_format pix; // V4L2_BUF_TYPE_VIDEO_CAPTURE
struct v4l2_window win; // V4L2_BUF_TYPE_VIDEO_OVERLAY
struct v4l2_vbi_format vbi; // V4L2_BUF_TYPE_VBI_CAPTURE
__u8 raw_data[200]; // user-defined
} fmt;
};
/* Stream type-dependent parameters
*/
struct v4l2_streamparm
{
enum v4l2_buf_type type;
union
{
struct v4l2_captureparm capture;
struct v4l2_outputparm output;
__u8 raw_data[200]; /* user-defined */
} parm;
};
/*
* I O C T L C O D E S F O R V I D E O D E V I C E S
*
*/
#define VIDIOC_QUERYCAP _IOR ('V', 0, struct v4l2_capability)
#define VIDIOC_RESERVED _IO ('V', 1)
#define VIDIOC_ENUM_FMT _IOWR ('V', 2, struct v4l2_fmtdesc)
#define VIDIOC_G_FMT _IOWR ('V', 4, struct v4l2_format)
#define VIDIOC_S_FMT _IOWR ('V', 5, struct v4l2_format)
#if 0
#define VIDIOC_G_COMP _IOR ('V', 6, struct v4l2_compression)
#define VIDIOC_S_COMP _IOW ('V', 7, struct v4l2_compression)
#endif
#define VIDIOC_REQBUFS _IOWR ('V', 8, struct v4l2_requestbuffers)
#define VIDIOC_QUERYBUF _IOWR ('V', 9, struct v4l2_buffer)
#define VIDIOC_G_FBUF _IOR ('V', 10, struct v4l2_framebuffer)
#define VIDIOC_S_FBUF _IOW ('V', 11, struct v4l2_framebuffer)
#define VIDIOC_OVERLAY _IOW ('V', 14, int)
#define VIDIOC_QBUF _IOWR ('V', 15, struct v4l2_buffer)
#define VIDIOC_DQBUF _IOWR ('V', 17, struct v4l2_buffer)
#define VIDIOC_STREAMON _IOW ('V', 18, int)
#define VIDIOC_STREAMOFF _IOW ('V', 19, int)
#define VIDIOC_G_PARM _IOWR ('V', 21, struct v4l2_streamparm)
#define VIDIOC_S_PARM _IOWR ('V', 22, struct v4l2_streamparm)
#define VIDIOC_G_STD _IOR ('V', 23, v4l2_std_id)
#define VIDIOC_S_STD _IOW ('V', 24, v4l2_std_id)
#define VIDIOC_ENUMSTD _IOWR ('V', 25, struct v4l2_standard)
#define VIDIOC_ENUMINPUT _IOWR ('V', 26, struct v4l2_input)
#define VIDIOC_G_CTRL _IOWR ('V', 27, struct v4l2_control)
#define VIDIOC_S_CTRL _IOWR ('V', 28, struct v4l2_control)
#define VIDIOC_G_TUNER _IOWR ('V', 29, struct v4l2_tuner)
#define VIDIOC_S_TUNER _IOW ('V', 30, struct v4l2_tuner)
#define VIDIOC_G_AUDIO _IOR ('V', 33, struct v4l2_audio)
#define VIDIOC_S_AUDIO _IOW ('V', 34, struct v4l2_audio)
#define VIDIOC_QUERYCTRL _IOWR ('V', 36, struct v4l2_queryctrl)
#define VIDIOC_QUERYMENU _IOWR ('V', 37, struct v4l2_querymenu)
#define VIDIOC_G_INPUT _IOR ('V', 38, int)
#define VIDIOC_S_INPUT _IOWR ('V', 39, int)
#define VIDIOC_G_OUTPUT _IOR ('V', 46, int)
#define VIDIOC_S_OUTPUT _IOWR ('V', 47, int)
#define VIDIOC_ENUMOUTPUT _IOWR ('V', 48, struct v4l2_output)
#define VIDIOC_G_AUDOUT _IOR ('V', 49, struct v4l2_audioout)
#define VIDIOC_S_AUDOUT _IOW ('V', 50, struct v4l2_audioout)
#define VIDIOC_G_MODULATOR _IOWR ('V', 54, struct v4l2_modulator)
#define VIDIOC_S_MODULATOR _IOW ('V', 55, struct v4l2_modulator)
#define VIDIOC_G_FREQUENCY _IOWR ('V', 56, struct v4l2_frequency)
#define VIDIOC_S_FREQUENCY _IOW ('V', 57, struct v4l2_frequency)
#define VIDIOC_CROPCAP _IOR ('V', 58, struct v4l2_cropcap)
#define VIDIOC_G_CROP _IOWR ('V', 59, struct v4l2_crop)
#define VIDIOC_S_CROP _IOW ('V', 60, struct v4l2_crop)
#define VIDIOC_G_JPEGCOMP _IOR ('V', 61, struct v4l2_jpegcompression)
#define VIDIOC_S_JPEGCOMP _IOW ('V', 62, struct v4l2_jpegcompression)
#define VIDIOC_QUERYSTD _IOR ('V', 63, v4l2_std_id)
#define VIDIOC_TRY_FMT _IOWR ('V', 64, struct v4l2_format)
#define VIDIOC_ENUMAUDIO _IOWR ('V', 65, struct v4l2_audio)
#define VIDIOC_ENUMAUDOUT _IOWR ('V', 66, struct v4l2_audioout)
#define VIDIOC_G_PRIORITY _IOR ('V', 67, enum v4l2_priority)
#define VIDIOC_S_PRIORITY _IOW ('V', 68, enum v4l2_priority)
/* for compatibility, will go away some day */
#define VIDIOC_OVERLAY_OLD _IOWR ('V', 14, int)
#define VIDIOC_S_PARM_OLD _IOW ('V', 22, struct v4l2_streamparm)
#define VIDIOC_S_CTRL_OLD _IOW ('V', 28, struct v4l2_control)
#define VIDIOC_G_AUDIO_OLD _IOWR ('V', 33, struct v4l2_audio)
#define VIDIOC_G_AUDOUT_OLD _IOWR ('V', 49, struct v4l2_audioout)
#define BASE_VIDIOC_PRIVATE 192 /* 192-255 are private */
#ifdef __KERNEL__
/*
*
* V 4 L 2 D R I V E R H E L P E R A P I
*
* Some commonly needed functions for drivers (v4l2-common.o module)
*/
#include <linux/fs.h>
/* Video standard functions */
extern unsigned int v4l2_video_std_fps(struct v4l2_standard *vs);
extern int v4l2_video_std_construct(struct v4l2_standard *vs,
int id, char *name);
/* prority handling */
struct v4l2_prio_state {
atomic_t prios[4];
};
int v4l2_prio_init(struct v4l2_prio_state *global);
int v4l2_prio_change(struct v4l2_prio_state *global, enum v4l2_priority *local,
enum v4l2_priority new);
int v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local);
int v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority *local);
enum v4l2_priority v4l2_prio_max(struct v4l2_prio_state *global);
int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority *local);
/* names for fancy debug output */
extern char *v4l2_field_names[];
extern char *v4l2_type_names[];
extern char *v4l2_ioctl_names[];
/* Compatibility layer interface -- v4l1-compat module */
typedef int (*v4l2_kioctl)(struct inode *inode, struct file *file,
unsigned int cmd, void *arg);
int v4l_compat_translate_ioctl(struct inode *inode, struct file *file,
int cmd, void *arg, v4l2_kioctl driver_ioctl);
#endif /* __KERNEL__ */
#endif /* __LINUX_VIDEODEV2_H */
/*
* Local variables:
* c-basic-offset: 8
* End:
*/
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