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935 lines
29 KiB
935 lines
29 KiB
15 years ago
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#ifndef __LINUX_VIDEODEV2_H
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#define __LINUX_VIDEODEV2_H
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/*
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* Video for Linux Two
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*
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* Header file for v4l or V4L2 drivers and applications, for
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* Linux kernels 2.2.x or 2.4.x.
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*
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* See http://bytesex.org/v4l/ for API specs and other
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* v4l2 documentation.
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*
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* Author: Bill Dirks <bdirks@pacbell.net>
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* Justin Schoeman
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* et al.
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*/
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#include <asm/types.h>
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#ifdef __KERNEL__
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#include <linux/time.h> /* need struct timeval */
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#endif
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/*
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* M I S C E L L A N E O U S
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*/
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/* Four-character-code (FOURCC) */
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#define v4l2_fourcc(a,b,c,d)\
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(((__u32)(a)<<0)|((__u32)(b)<<8)|((__u32)(c)<<16)|((__u32)(d)<<24))
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/*
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* E N U M S
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*/
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enum v4l2_field {
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V4L2_FIELD_ANY = 0, /* driver can choose from none,
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top, bottom, interlaced
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depending on whatever it thinks
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is approximate ... */
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V4L2_FIELD_NONE = 1, /* this device has no fields ... */
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V4L2_FIELD_TOP = 2, /* top field only */
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V4L2_FIELD_BOTTOM = 3, /* bottom field only */
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V4L2_FIELD_INTERLACED = 4, /* both fields interlaced */
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V4L2_FIELD_SEQ_TB = 5, /* both fields sequential into one
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buffer, top-bottom order */
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V4L2_FIELD_SEQ_BT = 6, /* same as above + bottom-top order */
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V4L2_FIELD_ALTERNATE = 7 /* both fields alternating into
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separate buffers */
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};
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#define V4L2_FIELD_HAS_TOP(field) \
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((field) == V4L2_FIELD_TOP ||\
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(field) == V4L2_FIELD_INTERLACED ||\
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(field) == V4L2_FIELD_SEQ_TB ||\
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(field) == V4L2_FIELD_SEQ_BT)
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#define V4L2_FIELD_HAS_BOTTOM(field) \
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((field) == V4L2_FIELD_BOTTOM ||\
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(field) == V4L2_FIELD_INTERLACED ||\
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(field) == V4L2_FIELD_SEQ_TB ||\
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(field) == V4L2_FIELD_SEQ_BT)
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#define V4L2_FIELD_HAS_BOTH(field) \
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((field) == V4L2_FIELD_INTERLACED ||\
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(field) == V4L2_FIELD_SEQ_TB ||\
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(field) == V4L2_FIELD_SEQ_BT)
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enum v4l2_buf_type {
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V4L2_BUF_TYPE_VIDEO_CAPTURE = 1,
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V4L2_BUF_TYPE_VIDEO_OUTPUT = 2,
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V4L2_BUF_TYPE_VIDEO_OVERLAY = 3,
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V4L2_BUF_TYPE_VBI_CAPTURE = 4,
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V4L2_BUF_TYPE_VBI_OUTPUT = 5,
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V4L2_BUF_TYPE_PRIVATE = 0x80
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};
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enum v4l2_ctrl_type {
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V4L2_CTRL_TYPE_INTEGER = 1,
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V4L2_CTRL_TYPE_BOOLEAN = 2,
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V4L2_CTRL_TYPE_MENU = 3,
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V4L2_CTRL_TYPE_BUTTON = 4
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};
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enum v4l2_tuner_type {
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V4L2_TUNER_RADIO = 1,
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V4L2_TUNER_ANALOG_TV = 2
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};
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enum v4l2_memory {
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V4L2_MEMORY_MMAP = 1,
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V4L2_MEMORY_USERPTR = 2,
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V4L2_MEMORY_OVERLAY = 3
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};
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/* see also http://vektor.theorem.ca/graphics/ycbcr/ */
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enum v4l2_colorspace {
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/* ITU-R 601 -- broadcast NTSC/PAL */
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V4L2_COLORSPACE_SMPTE170M = 1,
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/* 1125-Line (US) HDTV */
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V4L2_COLORSPACE_SMPTE240M = 2,
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/* HD and modern captures. */
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V4L2_COLORSPACE_REC709 = 3,
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/* broken BT878 extents (601, luma range 16-253 instead of 16-235) */
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V4L2_COLORSPACE_BT878 = 4,
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/* These should be useful. Assume 601 extents. */
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V4L2_COLORSPACE_470_SYSTEM_M = 5,
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V4L2_COLORSPACE_470_SYSTEM_BG = 6,
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/* I know there will be cameras that send this. So, this is
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* unspecified chromaticities and full 0-255 on each of the
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* Y'CbCr components
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*/
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V4L2_COLORSPACE_JPEG = 7,
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/* For RGB colourspaces, this is probably a good start. */
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V4L2_COLORSPACE_SRGB = 8
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};
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enum v4l2_priority {
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V4L2_PRIORITY_UNSET = 0, /* not initialized */
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V4L2_PRIORITY_BACKGROUND = 1,
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V4L2_PRIORITY_INTERACTIVE = 2,
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V4L2_PRIORITY_RECORD = 3,
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V4L2_PRIORITY_DEFAULT = V4L2_PRIORITY_INTERACTIVE
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};
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struct v4l2_rect {
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__s32 left;
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__s32 top;
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__s32 width;
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__s32 height;
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};
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struct v4l2_fract {
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__u32 numerator;
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__u32 denominator;
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};
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/*
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* D R I V E R C A P A B I L I T I E S
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*/
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struct v4l2_capability
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{
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__u8 driver[16]; /* i.e. "bttv" */
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__u8 card[32]; /* i.e. "Hauppauge WinTV" */
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__u8 bus_info[32]; /* "PCI:" + pci_name(pci_dev) */
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__u32 version; /* should use KERNEL_VERSION() */
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__u32 capabilities; /* Device capabilities */
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__u32 reserved[4];
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};
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/* Values for 'capabilities' field */
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#define V4L2_CAP_VIDEO_CAPTURE 0x00000001 /* Is a video capture device */
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#define V4L2_CAP_VIDEO_OUTPUT 0x00000002 /* Is a video output device */
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#define V4L2_CAP_VIDEO_OVERLAY 0x00000004 /* Can do video overlay */
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#define V4L2_CAP_VBI_CAPTURE 0x00000010 /* Is a VBI capture device */
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#define V4L2_CAP_VBI_OUTPUT 0x00000020 /* Is a VBI output device */
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#define V4L2_CAP_RDS_CAPTURE 0x00000100 /* RDS data capture */
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#define V4L2_CAP_TUNER 0x00010000 /* has a tuner */
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#define V4L2_CAP_AUDIO 0x00020000 /* has audio support */
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#define V4L2_CAP_RADIO 0x00040000 /* is a radio device */
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#define V4L2_CAP_READWRITE 0x01000000 /* read/write systemcalls */
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#define V4L2_CAP_ASYNCIO 0x02000000 /* async I/O */
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#define V4L2_CAP_STREAMING 0x04000000 /* streaming I/O ioctls */
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/*
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* V I D E O I M A G E F O R M A T
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*/
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struct v4l2_pix_format
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{
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__u32 width;
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__u32 height;
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__u32 pixelformat;
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enum v4l2_field field;
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__u32 bytesperline; /* for padding, zero if unused */
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__u32 sizeimage;
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enum v4l2_colorspace colorspace;
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__u32 priv; /* private data, depends on pixelformat */
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};
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/* Pixel format FOURCC depth Description */
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#define V4L2_PIX_FMT_RGB332 v4l2_fourcc('R','G','B','1') /* 8 RGB-3-3-2 */
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#define V4L2_PIX_FMT_RGB555 v4l2_fourcc('R','G','B','O') /* 16 RGB-5-5-5 */
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#define V4L2_PIX_FMT_RGB565 v4l2_fourcc('R','G','B','P') /* 16 RGB-5-6-5 */
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#define V4L2_PIX_FMT_RGB555X v4l2_fourcc('R','G','B','Q') /* 16 RGB-5-5-5 BE */
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#define V4L2_PIX_FMT_RGB565X v4l2_fourcc('R','G','B','R') /* 16 RGB-5-6-5 BE */
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#define V4L2_PIX_FMT_BGR24 v4l2_fourcc('B','G','R','3') /* 24 BGR-8-8-8 */
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#define V4L2_PIX_FMT_RGB24 v4l2_fourcc('R','G','B','3') /* 24 RGB-8-8-8 */
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#define V4L2_PIX_FMT_BGR32 v4l2_fourcc('B','G','R','4') /* 32 BGR-8-8-8-8 */
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#define V4L2_PIX_FMT_RGB32 v4l2_fourcc('R','G','B','4') /* 32 RGB-8-8-8-8 */
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#define V4L2_PIX_FMT_GREY v4l2_fourcc('G','R','E','Y') /* 8 Greyscale */
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#define V4L2_PIX_FMT_YVU410 v4l2_fourcc('Y','V','U','9') /* 9 YVU 4:1:0 */
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#define V4L2_PIX_FMT_YVU420 v4l2_fourcc('Y','V','1','2') /* 12 YVU 4:2:0 */
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#define V4L2_PIX_FMT_YUYV v4l2_fourcc('Y','U','Y','V') /* 16 YUV 4:2:2 */
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#define V4L2_PIX_FMT_UYVY v4l2_fourcc('U','Y','V','Y') /* 16 YUV 4:2:2 */
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#define V4L2_PIX_FMT_YUV422P v4l2_fourcc('4','2','2','P') /* 16 YVU422 planar */
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#define V4L2_PIX_FMT_YUV411P v4l2_fourcc('4','1','1','P') /* 16 YVU411 planar */
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#define V4L2_PIX_FMT_Y41P v4l2_fourcc('Y','4','1','P') /* 12 YUV 4:1:1 */
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/* two planes -- one Y, one Cr + Cb interleaved */
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#define V4L2_PIX_FMT_NV12 v4l2_fourcc('N','V','1','2') /* 12 Y/CbCr 4:2:0 */
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#define V4L2_PIX_FMT_NV21 v4l2_fourcc('N','V','2','1') /* 12 Y/CrCb 4:2:0 */
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/* The following formats are not defined in the V4L2 specification */
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#define V4L2_PIX_FMT_YUV410 v4l2_fourcc('Y','U','V','9') /* 9 YUV 4:1:0 */
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#define V4L2_PIX_FMT_YUV420 v4l2_fourcc('Y','U','1','2') /* 12 YUV 4:2:0 */
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#define V4L2_PIX_FMT_YYUV v4l2_fourcc('Y','Y','U','V') /* 16 YUV 4:2:2 */
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#define V4L2_PIX_FMT_HI240 v4l2_fourcc('H','I','2','4') /* 8 8-bit color */
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/* compressed formats */
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#define V4L2_PIX_FMT_MJPEG v4l2_fourcc('M','J','P','G') /* Motion-JPEG */
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#define V4L2_PIX_FMT_JPEG v4l2_fourcc('J','P','E','G') /* JFIF JPEG */
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#define V4L2_PIX_FMT_DV v4l2_fourcc('d','v','s','d') /* 1394 */
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#define V4L2_PIX_FMT_MPEG v4l2_fourcc('M','P','E','G') /* MPEG */
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/* Vendor-specific formats */
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#define V4L2_PIX_FMT_WNVA v4l2_fourcc('W','N','V','A') /* Winnov hw compress */
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/*
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* F O R M A T E N U M E R A T I O N
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*/
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struct v4l2_fmtdesc
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{
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__u32 index; /* Format number */
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enum v4l2_buf_type type; /* buffer type */
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__u32 flags;
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__u8 description[32]; /* Description string */
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__u32 pixelformat; /* Format fourcc */
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__u32 reserved[4];
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};
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#define V4L2_FMT_FLAG_COMPRESSED 0x0001
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/*
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* T I M E C O D E
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*/
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struct v4l2_timecode
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{
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__u32 type;
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__u32 flags;
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__u8 frames;
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__u8 seconds;
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__u8 minutes;
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__u8 hours;
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__u8 userbits[4];
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};
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/* Type */
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#define V4L2_TC_TYPE_24FPS 1
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#define V4L2_TC_TYPE_25FPS 2
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#define V4L2_TC_TYPE_30FPS 3
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#define V4L2_TC_TYPE_50FPS 4
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#define V4L2_TC_TYPE_60FPS 5
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/* Flags */
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#define V4L2_TC_FLAG_DROPFRAME 0x0001 /* "drop-frame" mode */
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#define V4L2_TC_FLAG_COLORFRAME 0x0002
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#define V4L2_TC_USERBITS_field 0x000C
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#define V4L2_TC_USERBITS_USERDEFINED 0x0000
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#define V4L2_TC_USERBITS_8BITCHARS 0x0008
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/* The above is based on SMPTE timecodes */
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/*
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* C O M P R E S S I O N P A R A M E T E R S
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||
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*/
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||
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#if 0
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||
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/* ### generic compression settings don't work, there is too much
|
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* ### codec-specific stuff. Maybe reuse that for MPEG codec settings
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* ### later ... */
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struct v4l2_compression
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{
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||
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__u32 quality;
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__u32 keyframerate;
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__u32 pframerate;
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||
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__u32 reserved[5];
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||
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/* what we'll need for MPEG, extracted from some postings on
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the v4l list (Gert Vervoort, PlasmaJohn).
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system stream:
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||
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- type: elementary stream(ES), packatised elementary stream(s) (PES)
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||
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program stream(PS), transport stream(TS)
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- system bitrate
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||
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- PS packet size (DVD: 2048 bytes, VCD: 2324 bytes)
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- TS video PID
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- TS audio PID
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- TS PCR PID
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- TS system information tables (PAT, PMT, CAT, NIT and SIT)
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||
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- (MPEG-1 systems stream vs. MPEG-2 program stream (TS not supported
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by MPEG-1 systems)
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audio:
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||
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- type: MPEG (+Layer I,II,III), AC-3, LPCM
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||
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- bitrate
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||
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- sampling frequency (DVD: 48 Khz, VCD: 44.1 KHz, 32 kHz)
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||
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- Trick Modes? (ff, rew)
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||
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- Copyright
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||
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- Inverse Telecine
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||
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video:
|
||
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- picturesize (SIF, 1/2 D1, 2/3 D1, D1) and PAL/NTSC norm can be set
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||
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through excisting V4L2 controls
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- noise reduction, parameters encoder specific?
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||
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- MPEG video version: MPEG-1, MPEG-2
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||
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- GOP (Group Of Pictures) definition:
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||
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- N: number of frames per GOP
|
||
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- M: distance between reference (I,P) frames
|
||
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- open/closed GOP
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||
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|
- quantiser matrix: inter Q matrix (64 bytes) and intra Q matrix (64 bytes)
|
||
|
|
- quantiser scale: linear or logarithmic
|
||
|
|
- scanning: alternate or zigzag
|
||
|
|
- bitrate mode: CBR (constant bitrate) or VBR (variable bitrate).
|
||
|
|
- target video bitrate for CBR
|
||
|
|
- target video bitrate for VBR
|
||
|
|
- maximum video bitrate for VBR - min. quantiser value for VBR
|
||
|
|
- max. quantiser value for VBR
|
||
|
|
- adaptive quantisation value
|
||
|
|
- return the number of bytes per GOP or bitrate for bitrate monitoring
|
||
|
|
|
||
|
|
*/
|
||
|
|
};
|
||
|
|
#endif
|
||
|
|
|
||
|
|
struct v4l2_jpegcompression
|
||
|
|
{
|
||
|
|
int quality;
|
||
|
|
|
||
|
|
int APPn; /* Number of APP segment to be written,
|
||
|
|
* must be 0..15 */
|
||
|
|
int APP_len; /* Length of data in JPEG APPn segment */
|
||
|
|
char APP_data[60]; /* Data in the JPEG APPn segment. */
|
||
|
|
|
||
|
|
int COM_len; /* Length of data in JPEG COM segment */
|
||
|
|
char COM_data[60]; /* Data in JPEG COM segment */
|
||
|
|
|
||
|
|
__u32 jpeg_markers; /* Which markers should go into the JPEG
|
||
|
|
* output. Unless you exactly know what
|
||
|
|
* you do, leave them untouched.
|
||
|
|
* Inluding less markers will make the
|
||
|
|
* resulting code smaller, but there will
|
||
|
|
* be fewer aplications which can read it.
|
||
|
|
* The presence of the APP and COM marker
|
||
|
|
* is influenced by APP_len and COM_len
|
||
|
|
* ONLY, not by this property! */
|
||
|
|
|
||
|
|
#define V4L2_JPEG_MARKER_DHT (1<<3) /* Define Huffman Tables */
|
||
|
|
#define V4L2_JPEG_MARKER_DQT (1<<4) /* Define Quantization Tables */
|
||
|
|
#define V4L2_JPEG_MARKER_DRI (1<<5) /* Define Restart Interval */
|
||
|
|
#define V4L2_JPEG_MARKER_COM (1<<6) /* Comment segment */
|
||
|
|
#define V4L2_JPEG_MARKER_APP (1<<7) /* App segment, driver will
|
||
|
|
* allways use APP0 */
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* M E M O R Y - M A P P I N G B U F F E R S
|
||
|
|
*/
|
||
|
|
struct v4l2_requestbuffers
|
||
|
|
{
|
||
|
|
__u32 count;
|
||
|
|
enum v4l2_buf_type type;
|
||
|
|
enum v4l2_memory memory;
|
||
|
|
__u32 reserved[2];
|
||
|
|
};
|
||
|
|
|
||
|
|
struct v4l2_buffer
|
||
|
|
{
|
||
|
|
__u32 index;
|
||
|
|
enum v4l2_buf_type type;
|
||
|
|
__u32 bytesused;
|
||
|
|
__u32 flags;
|
||
|
|
enum v4l2_field field;
|
||
|
|
struct timeval timestamp;
|
||
|
|
struct v4l2_timecode timecode;
|
||
|
|
__u32 sequence;
|
||
|
|
|
||
|
|
/* memory location */
|
||
|
|
enum v4l2_memory memory;
|
||
|
|
union {
|
||
|
|
__u32 offset;
|
||
|
|
unsigned long userptr;
|
||
|
|
} m;
|
||
|
|
__u32 length;
|
||
|
|
|
||
|
|
__u32 reserved[2];
|
||
|
|
};
|
||
|
|
|
||
|
|
/* Flags for 'flags' field */
|
||
|
|
#define V4L2_BUF_FLAG_MAPPED 0x0001 /* Buffer is mapped (flag) */
|
||
13 years ago
|
#define V4L2_BUF_FLAG_QUEUED 0x0002 /* Buffer is queued for processing */
|
||
|
15 years ago
|
#define V4L2_BUF_FLAG_DONE 0x0004 /* Buffer is ready */
|
||
|
|
#define V4L2_BUF_FLAG_KEYFRAME 0x0008 /* Image is a keyframe (I-frame) */
|
||
|
|
#define V4L2_BUF_FLAG_PFRAME 0x0010 /* Image is a P-frame */
|
||
|
|
#define V4L2_BUF_FLAG_BFRAME 0x0020 /* Image is a B-frame */
|
||
|
|
#define V4L2_BUF_FLAG_TIMECODE 0x0100 /* timecode field is valid */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* O V E R L A Y P R E V I E W
|
||
|
|
*/
|
||
|
|
struct v4l2_framebuffer
|
||
|
|
{
|
||
|
|
__u32 capability;
|
||
|
|
__u32 flags;
|
||
|
|
/* FIXME: in theory we should pass something like PCI device + memory
|
||
|
|
* region + offset instead of some physical address */
|
||
|
|
void* base;
|
||
|
|
struct v4l2_pix_format fmt;
|
||
|
|
};
|
||
|
|
/* Flags for the 'capability' field. Read only */
|
||
|
|
#define V4L2_FBUF_CAP_EXTERNOVERLAY 0x0001
|
||
|
|
#define V4L2_FBUF_CAP_CHROMAKEY 0x0002
|
||
|
|
#define V4L2_FBUF_CAP_LIST_CLIPPING 0x0004
|
||
|
|
#define V4L2_FBUF_CAP_BITMAP_CLIPPING 0x0008
|
||
|
|
/* Flags for the 'flags' field. */
|
||
|
|
#define V4L2_FBUF_FLAG_PRIMARY 0x0001
|
||
|
|
#define V4L2_FBUF_FLAG_OVERLAY 0x0002
|
||
|
|
#define V4L2_FBUF_FLAG_CHROMAKEY 0x0004
|
||
|
|
|
||
|
|
struct v4l2_clip
|
||
|
|
{
|
||
|
|
struct v4l2_rect c;
|
||
|
|
struct v4l2_clip *next;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct v4l2_window
|
||
|
|
{
|
||
|
|
struct v4l2_rect w;
|
||
|
|
enum v4l2_field field;
|
||
|
|
__u32 chromakey;
|
||
|
|
struct v4l2_clip *clips;
|
||
|
|
__u32 clipcount;
|
||
|
|
void *bitmap;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* C A P T U R E P A R A M E T E R S
|
||
|
|
*/
|
||
|
|
struct v4l2_captureparm
|
||
|
|
{
|
||
|
|
__u32 capability; /* Supported modes */
|
||
|
|
__u32 capturemode; /* Current mode */
|
||
|
|
struct v4l2_fract timeperframe; /* Time per frame in .1us units */
|
||
|
|
__u32 extendedmode; /* Driver-specific extensions */
|
||
|
|
__u32 readbuffers; /* # of buffers for read */
|
||
|
|
__u32 reserved[4];
|
||
|
|
};
|
||
|
|
/* Flags for 'capability' and 'capturemode' fields */
|
||
|
13 years ago
|
#define V4L2_MODE_HIGHQUALITY 0x0001 /* High quality imaging mode */
|
||
|
15 years ago
|
#define V4L2_CAP_TIMEPERFRAME 0x1000 /* timeperframe field is supported */
|
||
|
|
|
||
|
|
struct v4l2_outputparm
|
||
|
|
{
|
||
|
|
__u32 capability; /* Supported modes */
|
||
|
|
__u32 outputmode; /* Current mode */
|
||
|
|
struct v4l2_fract timeperframe; /* Time per frame in seconds */
|
||
|
|
__u32 extendedmode; /* Driver-specific extensions */
|
||
|
|
__u32 writebuffers; /* # of buffers for write */
|
||
|
|
__u32 reserved[4];
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* I N P U T I M A G E C R O P P I N G
|
||
|
|
*/
|
||
|
|
|
||
|
|
struct v4l2_cropcap {
|
||
|
|
enum v4l2_buf_type type;
|
||
|
|
struct v4l2_rect bounds;
|
||
|
|
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 unsigned long long 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;
|
||
|
|
};
|
||
|
|
|
||
|
13 years ago
|
/* Used in the VIDIOC_QUERYCTRL ioctl for querying controls */
|
||
|
15 years ago
|
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];
|
||
|
|
};
|
||
|
|
|
||
|
13 years ago
|
/* Used in the VIDIOC_QUERYMENU ioctl for querying menu items */
|
||
|
15 years ago
|
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
|
||
|
|
*
|
||
|
|
*/
|
||
|
13 years ago
|
#define VIDIOC_QUERYCAP _IOR ('V', 0, struct v4l2_capability)
|
||
|
15 years ago
|
#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
|
||
|
11 years ago
|
#define VIDIOC_REQBUFS _IOWR ('V', 8, struct v4l2_requestbuffers)
|
||
|
13 years ago
|
#define VIDIOC_QUERYBUF _IOWR ('V', 9, struct v4l2_buffer)
|
||
|
15 years ago
|
#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)
|
||
|
14 years ago
|
#define VIDIOC_TQBUF _IOWR ('V', 15, struct v4l2_buffer)
|
||
|
|
#define VIDIOC_DTQBUF _IOWR ('V', 17, struct v4l2_buffer)
|
||
|
15 years ago
|
#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)
|
||
|
13 years ago
|
#define VIDIOC_QUERYCTRL _IOWR ('V', 36, struct v4l2_queryctrl)
|
||
|
|
#define VIDIOC_QUERYMENU _IOWR ('V', 37, struct v4l2_querymenu)
|
||
|
15 years ago
|
#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)
|
||
|
13 years ago
|
#define VIDIOC_QUERYSTD _IOR ('V', 63, v4l2_std_id)
|
||
|
15 years ago
|
#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 */
|