1 #ifndef __LINUX_VIDEODEV2_H
2 #define __LINUX_VIDEODEV2_H
6 * Header file for v4l or V4L2 drivers and applications, for
7 * Linux kernels 2.2.x or 2.4.x.
9 * See http://bytesex.org/v4l/ for API specs and other
12 * Author: Bill Dirks <bdirks@pacbell.net>
17 #include <linux/time.h> /* need struct timeval */
21 * M I S C E L L A N E O U S
24 /* Four-character-code (FOURCC) */
25 #define v4l2_fourcc(a,b,c,d)\
26 (((__u32)(a)<<0)|((__u32)(b)<<8)|((__u32)(c)<<16)|((__u32)(d)<<24))
32 V4L2_FIELD_ANY
= 0, /* driver can choose from none,
33 top, bottom, interlaced
34 depending on whatever it thinks
36 V4L2_FIELD_NONE
= 1, /* this device has no fields ... */
37 V4L2_FIELD_TOP
= 2, /* top field only */
38 V4L2_FIELD_BOTTOM
= 3, /* bottom field only */
39 V4L2_FIELD_INTERLACED
= 4, /* both fields interlaced */
40 V4L2_FIELD_SEQ_TB
= 5, /* both fields sequential into one
41 buffer, top-bottom order */
42 V4L2_FIELD_SEQ_BT
= 6, /* same as above + bottom-top order */
43 V4L2_FIELD_ALTERNATE
= 7, /* both fields alternating into
46 #define V4L2_FIELD_HAS_TOP(field) \
47 ((field) == V4L2_FIELD_TOP ||\
48 (field) == V4L2_FIELD_INTERLACED ||\
49 (field) == V4L2_FIELD_SEQ_TB ||\
50 (field) == V4L2_FIELD_SEQ_BT)
51 #define V4L2_FIELD_HAS_BOTTOM(field) \
52 ((field) == V4L2_FIELD_BOTTOM ||\
53 (field) == V4L2_FIELD_INTERLACED ||\
54 (field) == V4L2_FIELD_SEQ_TB ||\
55 (field) == V4L2_FIELD_SEQ_BT)
56 #define V4L2_FIELD_HAS_BOTH(field) \
57 ((field) == V4L2_FIELD_INTERLACED ||\
58 (field) == V4L2_FIELD_SEQ_TB ||\
59 (field) == V4L2_FIELD_SEQ_BT)
62 V4L2_BUF_TYPE_VIDEO_CAPTURE
= 1,
63 V4L2_BUF_TYPE_VIDEO_OUTPUT
= 2,
64 V4L2_BUF_TYPE_VIDEO_OVERLAY
= 3,
65 V4L2_BUF_TYPE_VBI_CAPTURE
= 4,
66 V4L2_BUF_TYPE_VBI_OUTPUT
= 5,
67 V4L2_BUF_TYPE_PRIVATE
= 0x80,
71 V4L2_CTRL_TYPE_INTEGER
= 1,
72 V4L2_CTRL_TYPE_BOOLEAN
= 2,
73 V4L2_CTRL_TYPE_MENU
= 3,
74 V4L2_CTRL_TYPE_BUTTON
= 4,
77 enum v4l2_tuner_type
{
79 V4L2_TUNER_ANALOG_TV
= 2,
84 V4L2_MEMORY_USERPTR
= 2,
85 V4L2_MEMORY_OVERLAY
= 3,
88 /* see also http://vektor.theorem.ca/graphics/ycbcr/ */
89 enum v4l2_colorspace
{
90 /* ITU-R 601 -- broadcast NTSC/PAL */
91 V4L2_COLORSPACE_SMPTE170M
= 1,
93 /* 1125-Line (US) HDTV */
94 V4L2_COLORSPACE_SMPTE240M
= 2,
96 /* HD and modern captures. */
97 V4L2_COLORSPACE_REC709
= 3,
99 /* broken BT878 extents (601, luma range 16-253 instead of 16-235) */
100 V4L2_COLORSPACE_BT878
= 4,
102 /* These should be useful. Assume 601 extents. */
103 V4L2_COLORSPACE_470_SYSTEM_M
= 5,
104 V4L2_COLORSPACE_470_SYSTEM_BG
= 6,
106 /* I know there will be cameras that send this. So, this is
107 * unspecified chromaticities and full 0-255 on each of the
110 V4L2_COLORSPACE_JPEG
= 7,
112 /* For RGB colourspaces, this is probably a good start. */
113 V4L2_COLORSPACE_SRGB
= 8,
117 V4L2_PRIORITY_UNSET
= 0, /* not initialized */
118 V4L2_PRIORITY_BACKGROUND
= 1,
119 V4L2_PRIORITY_INTERACTIVE
= 2,
120 V4L2_PRIORITY_RECORD
= 3,
121 V4L2_PRIORITY_DEFAULT
= V4L2_PRIORITY_INTERACTIVE
,
137 * D R I V E R C A P A B I L I T I E S
139 struct v4l2_capability
141 __u8 driver
[16]; /* i.e. "bttv" */
142 __u8 card
[32]; /* i.e. "Hauppauge WinTV" */
143 __u8 bus_info
[32]; /* "PCI:" + pci_name(pci_dev) */
144 __u32 version
; /* should use KERNEL_VERSION() */
145 __u32 capabilities
; /* Device capabilities */
149 /* Values for 'capabilities' field */
150 #define V4L2_CAP_VIDEO_CAPTURE 0x00000001 /* Is a video capture device */
151 #define V4L2_CAP_VIDEO_OUTPUT 0x00000002 /* Is a video output device */
152 #define V4L2_CAP_VIDEO_OVERLAY 0x00000004 /* Can do video overlay */
153 #define V4L2_CAP_VBI_CAPTURE 0x00000010 /* Is a VBI capture device */
154 #define V4L2_CAP_VBI_OUTPUT 0x00000020 /* Is a VBI output device */
155 #define V4L2_CAP_RDS_CAPTURE 0x00000100 /* RDS data capture */
157 #define V4L2_CAP_TUNER 0x00010000 /* has a tuner */
158 #define V4L2_CAP_AUDIO 0x00020000 /* has audio support */
159 #define V4L2_CAP_RADIO 0x00040000 /* is a radio device */
161 #define V4L2_CAP_READWRITE 0x01000000 /* read/write systemcalls */
162 #define V4L2_CAP_ASYNCIO 0x02000000 /* async I/O */
163 #define V4L2_CAP_STREAMING 0x04000000 /* streaming I/O ioctls */
166 * V I D E O I M A G E F O R M A T
169 struct v4l2_pix_format
174 enum v4l2_field field
;
175 __u32 bytesperline
; /* for padding, zero if unused */
177 enum v4l2_colorspace colorspace
;
178 __u32 priv
; /* private data, depends on pixelformat */
181 /* Pixel format FOURCC depth Description */
182 #define V4L2_PIX_FMT_RGB332 v4l2_fourcc('R','G','B','1') /* 8 RGB-3-3-2 */
183 #define V4L2_PIX_FMT_RGB555 v4l2_fourcc('R','G','B','O') /* 16 RGB-5-5-5 */
184 #define V4L2_PIX_FMT_RGB565 v4l2_fourcc('R','G','B','P') /* 16 RGB-5-6-5 */
185 #define V4L2_PIX_FMT_RGB555X v4l2_fourcc('R','G','B','Q') /* 16 RGB-5-5-5 BE */
186 #define V4L2_PIX_FMT_RGB565X v4l2_fourcc('R','G','B','R') /* 16 RGB-5-6-5 BE */
187 #define V4L2_PIX_FMT_BGR24 v4l2_fourcc('B','G','R','3') /* 24 BGR-8-8-8 */
188 #define V4L2_PIX_FMT_RGB24 v4l2_fourcc('R','G','B','3') /* 24 RGB-8-8-8 */
189 #define V4L2_PIX_FMT_BGR32 v4l2_fourcc('B','G','R','4') /* 32 BGR-8-8-8-8 */
190 #define V4L2_PIX_FMT_RGB32 v4l2_fourcc('R','G','B','4') /* 32 RGB-8-8-8-8 */
191 #define V4L2_PIX_FMT_GREY v4l2_fourcc('G','R','E','Y') /* 8 Greyscale */
192 #define V4L2_PIX_FMT_YVU410 v4l2_fourcc('Y','V','U','9') /* 9 YVU 4:1:0 */
193 #define V4L2_PIX_FMT_YVU420 v4l2_fourcc('Y','V','1','2') /* 12 YVU 4:2:0 */
194 #define V4L2_PIX_FMT_YUYV v4l2_fourcc('Y','U','Y','V') /* 16 YUV 4:2:2 */
195 #define V4L2_PIX_FMT_UYVY v4l2_fourcc('U','Y','V','Y') /* 16 YUV 4:2:2 */
196 #define V4L2_PIX_FMT_YUV422P v4l2_fourcc('4','2','2','P') /* 16 YVU422 planar */
197 #define V4L2_PIX_FMT_YUV411P v4l2_fourcc('4','1','1','P') /* 16 YVU411 planar */
198 #define V4L2_PIX_FMT_Y41P v4l2_fourcc('Y','4','1','P') /* 12 YUV 4:1:1 */
200 /* two planes -- one Y, one Cr + Cb interleaved */
201 #define V4L2_PIX_FMT_NV12 v4l2_fourcc('N','V','1','2') /* 12 Y/CbCr 4:2:0 */
202 #define V4L2_PIX_FMT_NV21 v4l2_fourcc('N','V','2','1') /* 12 Y/CrCb 4:2:0 */
204 /* The following formats are not defined in the V4L2 specification */
205 #define V4L2_PIX_FMT_YUV410 v4l2_fourcc('Y','U','V','9') /* 9 YUV 4:1:0 */
206 #define V4L2_PIX_FMT_YUV420 v4l2_fourcc('Y','U','1','2') /* 12 YUV 4:2:0 */
207 #define V4L2_PIX_FMT_YYUV v4l2_fourcc('Y','Y','U','V') /* 16 YUV 4:2:2 */
208 #define V4L2_PIX_FMT_HI240 v4l2_fourcc('H','I','2','4') /* 8 8-bit color */
210 /* compressed formats */
211 #define V4L2_PIX_FMT_MJPEG v4l2_fourcc('M','J','P','G') /* Motion-JPEG */
212 #define V4L2_PIX_FMT_JPEG v4l2_fourcc('J','P','E','G') /* JFIF JPEG */
213 #define V4L2_PIX_FMT_DV v4l2_fourcc('d','v','s','d') /* 1394 */
214 #define V4L2_PIX_FMT_MPEG v4l2_fourcc('M','P','E','G') /* MPEG */
216 /* Vendor-specific formats */
217 #define V4L2_PIX_FMT_WNVA v4l2_fourcc('W','N','V','A') /* Winnov hw compress */
220 * F O R M A T E N U M E R A T I O N
224 __u32 index
; /* Format number */
225 enum v4l2_buf_type type
; /* buffer type */
227 __u8 description
[32]; /* Description string */
228 __u32 pixelformat
; /* Format fourcc */
232 #define V4L2_FMT_FLAG_COMPRESSED 0x0001
250 #define V4L2_TC_TYPE_24FPS 1
251 #define V4L2_TC_TYPE_25FPS 2
252 #define V4L2_TC_TYPE_30FPS 3
253 #define V4L2_TC_TYPE_50FPS 4
254 #define V4L2_TC_TYPE_60FPS 5
257 #define V4L2_TC_FLAG_DROPFRAME 0x0001 /* "drop-frame" mode */
258 #define V4L2_TC_FLAG_COLORFRAME 0x0002
259 #define V4L2_TC_USERBITS_field 0x000C
260 #define V4L2_TC_USERBITS_USERDEFINED 0x0000
261 #define V4L2_TC_USERBITS_8BITCHARS 0x0008
262 /* The above is based on SMPTE timecodes */
266 * C O M P R E S S I O N P A R A M E T E R S
269 /* ### generic compression settings don't work, there is too much
270 * ### codec-specific stuff. Maybe reuse that for MPEG codec settings
272 struct v4l2_compression
279 /* what we'll need for MPEG, extracted from some postings on
280 the v4l list (Gert Vervoort, PlasmaJohn).
283 - type: elementary stream(ES), packatised elementary stream(s) (PES)
284 program stream(PS), transport stream(TS)
286 - PS packet size (DVD: 2048 bytes, VCD: 2324 bytes)
290 - TS system information tables (PAT, PMT, CAT, NIT and SIT)
291 - (MPEG-1 systems stream vs. MPEG-2 program stream (TS not supported
295 - type: MPEG (+Layer I,II,III), AC-3, LPCM
297 - sampling frequency (DVD: 48 Khz, VCD: 44.1 KHz, 32 kHz)
298 - Trick Modes? (ff, rew)
303 - picturesize (SIF, 1/2 D1, 2/3 D1, D1) and PAL/NTSC norm can be set
304 through excisting V4L2 controls
305 - noise reduction, parameters encoder specific?
306 - MPEG video version: MPEG-1, MPEG-2
307 - GOP (Group Of Pictures) definition:
308 - N: number of frames per GOP
309 - M: distance between reference (I,P) frames
311 - quantiser matrix: inter Q matrix (64 bytes) and intra Q matrix (64 bytes)
312 - quantiser scale: linear or logarithmic
313 - scanning: alternate or zigzag
314 - bitrate mode: CBR (constant bitrate) or VBR (variable bitrate).
315 - target video bitrate for CBR
316 - target video bitrate for VBR
317 - maximum video bitrate for VBR - min. quantiser value for VBR
318 - max. quantiser value for VBR
319 - adaptive quantisation value
320 - return the number of bytes per GOP or bitrate for bitrate monitoring
326 struct v4l2_jpegcompression
330 int APPn
; /* Number of APP segment to be written,
332 int APP_len
; /* Length of data in JPEG APPn segment */
333 char APP_data
[60]; /* Data in the JPEG APPn segment. */
335 int COM_len
; /* Length of data in JPEG COM segment */
336 char COM_data
[60]; /* Data in JPEG COM segment */
338 __u32 jpeg_markers
; /* Which markers should go into the JPEG
339 * output. Unless you exactly know what
340 * you do, leave them untouched.
341 * Inluding less markers will make the
342 * resulting code smaller, but there will
343 * be fewer aplications which can read it.
344 * The presence of the APP and COM marker
345 * is influenced by APP_len and COM_len
346 * ONLY, not by this property! */
348 #define V4L2_JPEG_MARKER_DHT (1<<3) /* Define Huffman Tables */
349 #define V4L2_JPEG_MARKER_DQT (1<<4) /* Define Quantization Tables */
350 #define V4L2_JPEG_MARKER_DRI (1<<5) /* Define Restart Interval */
351 #define V4L2_JPEG_MARKER_COM (1<<6) /* Comment segment */
352 #define V4L2_JPEG_MARKER_APP (1<<7) /* App segment, driver will
353 * allways use APP0 */
358 * M E M O R Y - M A P P I N G B U F F E R S
360 struct v4l2_requestbuffers
363 enum v4l2_buf_type type
;
364 enum v4l2_memory memory
;
371 enum v4l2_buf_type type
;
374 enum v4l2_field field
;
375 struct timeval timestamp
;
376 struct v4l2_timecode timecode
;
379 /* memory location */
380 enum v4l2_memory memory
;
383 unsigned long userptr
;
390 /* Flags for 'flags' field */
391 #define V4L2_BUF_FLAG_MAPPED 0x0001 /* Buffer is mapped (flag) */
392 #define V4L2_BUF_FLAG_QUEUED 0x0002 /* Buffer is queued for processing */
393 #define V4L2_BUF_FLAG_DONE 0x0004 /* Buffer is ready */
394 #define V4L2_BUF_FLAG_KEYFRAME 0x0008 /* Image is a keyframe (I-frame) */
395 #define V4L2_BUF_FLAG_PFRAME 0x0010 /* Image is a P-frame */
396 #define V4L2_BUF_FLAG_BFRAME 0x0020 /* Image is a B-frame */
397 #define V4L2_BUF_FLAG_TIMECODE 0x0100 /* timecode field is valid */
400 * O V E R L A Y P R E V I E W
402 struct v4l2_framebuffer
406 /* FIXME: in theory we should pass something like PCI device + memory
407 * region + offset instead of some physical address */
409 struct v4l2_pix_format fmt
;
411 /* Flags for the 'capability' field. Read only */
412 #define V4L2_FBUF_CAP_EXTERNOVERLAY 0x0001
413 #define V4L2_FBUF_CAP_CHROMAKEY 0x0002
414 #define V4L2_FBUF_CAP_LIST_CLIPPING 0x0004
415 #define V4L2_FBUF_CAP_BITMAP_CLIPPING 0x0008
416 /* Flags for the 'flags' field. */
417 #define V4L2_FBUF_FLAG_PRIMARY 0x0001
418 #define V4L2_FBUF_FLAG_OVERLAY 0x0002
419 #define V4L2_FBUF_FLAG_CHROMAKEY 0x0004
424 struct v4l2_clip
*next
;
430 enum v4l2_field field
;
432 struct v4l2_clip
*clips
;
439 * C A P T U R E P A R A M E T E R S
441 struct v4l2_captureparm
443 __u32 capability
; /* Supported modes */
444 __u32 capturemode
; /* Current mode */
445 struct v4l2_fract timeperframe
; /* Time per frame in .1us units */
446 __u32 extendedmode
; /* Driver-specific extensions */
447 __u32 readbuffers
; /* # of buffers for read */
450 /* Flags for 'capability' and 'capturemode' fields */
451 #define V4L2_MODE_HIGHQUALITY 0x0001 /* High quality imaging mode */
452 #define V4L2_CAP_TIMEPERFRAME 0x1000 /* timeperframe field is supported */
454 struct v4l2_outputparm
456 __u32 capability
; /* Supported modes */
457 __u32 outputmode
; /* Current mode */
458 struct v4l2_fract timeperframe
; /* Time per frame in seconds */
459 __u32 extendedmode
; /* Driver-specific extensions */
460 __u32 writebuffers
; /* # of buffers for write */
465 * I N P U T I M A G E C R O P P I N G
468 struct v4l2_cropcap
{
469 enum v4l2_buf_type type
;
470 struct v4l2_rect bounds
;
471 struct v4l2_rect defrect
;
472 struct v4l2_fract pixelaspect
;
476 enum v4l2_buf_type type
;
481 * A N A L O G V I D E O S T A N D A R D
484 typedef __u64 v4l2_std_id
;
486 /* one bit for each */
487 #define V4L2_STD_PAL_B ((v4l2_std_id)0x00000001)
488 #define V4L2_STD_PAL_B1 ((v4l2_std_id)0x00000002)
489 #define V4L2_STD_PAL_G ((v4l2_std_id)0x00000004)
490 #define V4L2_STD_PAL_H ((v4l2_std_id)0x00000008)
491 #define V4L2_STD_PAL_I ((v4l2_std_id)0x00000010)
492 #define V4L2_STD_PAL_D ((v4l2_std_id)0x00000020)
493 #define V4L2_STD_PAL_D1 ((v4l2_std_id)0x00000040)
494 #define V4L2_STD_PAL_K ((v4l2_std_id)0x00000080)
496 #define V4L2_STD_PAL_M ((v4l2_std_id)0x00000100)
497 #define V4L2_STD_PAL_N ((v4l2_std_id)0x00000200)
498 #define V4L2_STD_PAL_Nc ((v4l2_std_id)0x00000400)
499 #define V4L2_STD_PAL_60 ((v4l2_std_id)0x00000800)
501 #define V4L2_STD_NTSC_M ((v4l2_std_id)0x00001000)
502 #define V4L2_STD_NTSC_M_JP ((v4l2_std_id)0x00002000)
504 #define V4L2_STD_SECAM_B ((v4l2_std_id)0x00010000)
505 #define V4L2_STD_SECAM_D ((v4l2_std_id)0x00020000)
506 #define V4L2_STD_SECAM_G ((v4l2_std_id)0x00040000)
507 #define V4L2_STD_SECAM_H ((v4l2_std_id)0x00080000)
508 #define V4L2_STD_SECAM_K ((v4l2_std_id)0x00100000)
509 #define V4L2_STD_SECAM_K1 ((v4l2_std_id)0x00200000)
510 #define V4L2_STD_SECAM_L ((v4l2_std_id)0x00400000)
513 #define V4L2_STD_ATSC_8_VSB ((v4l2_std_id)0x01000000)
514 #define V4L2_STD_ATSC_16_VSB ((v4l2_std_id)0x02000000)
516 /* some common needed stuff */
517 #define V4L2_STD_PAL_BG (V4L2_STD_PAL_B |\
520 #define V4L2_STD_PAL_DK (V4L2_STD_PAL_D |\
523 #define V4L2_STD_PAL (V4L2_STD_PAL_BG |\
527 #define V4L2_STD_NTSC (V4L2_STD_NTSC_M |\
529 #define V4L2_STD_SECAM (V4L2_STD_SECAM_B |\
537 #define V4L2_STD_525_60 (V4L2_STD_PAL_M |\
540 #define V4L2_STD_625_50 (V4L2_STD_PAL |\
545 #define V4L2_STD_UNKNOWN 0
546 #define V4L2_STD_ALL (V4L2_STD_525_60 |\
554 struct v4l2_fract frameperiod
; /* Frames, not fields */
561 * V I D E O I N P U T S
565 __u32 index
; /* Which input */
566 __u8 name
[32]; /* Label */
567 __u32 type
; /* Type of input */
568 __u32 audioset
; /* Associated audios (bitfield) */
569 __u32 tuner
; /* Associated tuner */
574 /* Values for the 'type' field */
575 #define V4L2_INPUT_TYPE_TUNER 1
576 #define V4L2_INPUT_TYPE_CAMERA 2
578 /* field 'status' - general */
579 #define V4L2_IN_ST_NO_POWER 0x00000001 /* Attached device is off */
580 #define V4L2_IN_ST_NO_SIGNAL 0x00000002
581 #define V4L2_IN_ST_NO_COLOR 0x00000004
583 /* field 'status' - analog */
584 #define V4L2_IN_ST_NO_H_LOCK 0x00000100 /* No horizontal sync lock */
585 #define V4L2_IN_ST_COLOR_KILL 0x00000200 /* Color killer is active */
587 /* field 'status' - digital */
588 #define V4L2_IN_ST_NO_SYNC 0x00010000 /* No synchronization lock */
589 #define V4L2_IN_ST_NO_EQU 0x00020000 /* No equalizer lock */
590 #define V4L2_IN_ST_NO_CARRIER 0x00040000 /* Carrier recovery failed */
592 /* field 'status' - VCR and set-top box */
593 #define V4L2_IN_ST_MACROVISION 0x01000000 /* Macrovision detected */
594 #define V4L2_IN_ST_NO_ACCESS 0x02000000 /* Conditional access denied */
595 #define V4L2_IN_ST_VTR 0x04000000 /* VTR time constant */
598 * V I D E O O U T P U T S
602 __u32 index
; /* Which output */
603 __u8 name
[32]; /* Label */
604 __u32 type
; /* Type of output */
605 __u32 audioset
; /* Associated audios (bitfield) */
606 __u32 modulator
; /* Associated modulator */
610 /* Values for the 'type' field */
611 #define V4L2_OUTPUT_TYPE_MODULATOR 1
612 #define V4L2_OUTPUT_TYPE_ANALOG 2
613 #define V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY 3
624 /* Used in the VIDIOC_QUERYCTRL ioctl for querying controls */
625 struct v4l2_queryctrl
628 enum v4l2_ctrl_type type
;
629 __u8 name
[32]; /* Whatever */
630 __s32 minimum
; /* Note signedness */
638 /* Used in the VIDIOC_QUERYMENU ioctl for querying menu items */
639 struct v4l2_querymenu
643 __u8 name
[32]; /* Whatever */
648 #define V4L2_CTRL_FLAG_DISABLED 0x0001
649 #define V4L2_CTRL_FLAG_GRABBED 0x0002
651 /* Control IDs defined by V4L2 */
652 #define V4L2_CID_BASE 0x00980900
653 /* IDs reserved for driver specific controls */
654 #define V4L2_CID_PRIVATE_BASE 0x08000000
656 #define V4L2_CID_BRIGHTNESS (V4L2_CID_BASE+0)
657 #define V4L2_CID_CONTRAST (V4L2_CID_BASE+1)
658 #define V4L2_CID_SATURATION (V4L2_CID_BASE+2)
659 #define V4L2_CID_HUE (V4L2_CID_BASE+3)
660 #define V4L2_CID_AUDIO_VOLUME (V4L2_CID_BASE+5)
661 #define V4L2_CID_AUDIO_BALANCE (V4L2_CID_BASE+6)
662 #define V4L2_CID_AUDIO_BASS (V4L2_CID_BASE+7)
663 #define V4L2_CID_AUDIO_TREBLE (V4L2_CID_BASE+8)
664 #define V4L2_CID_AUDIO_MUTE (V4L2_CID_BASE+9)
665 #define V4L2_CID_AUDIO_LOUDNESS (V4L2_CID_BASE+10)
666 #define V4L2_CID_BLACK_LEVEL (V4L2_CID_BASE+11)
667 #define V4L2_CID_AUTO_WHITE_BALANCE (V4L2_CID_BASE+12)
668 #define V4L2_CID_DO_WHITE_BALANCE (V4L2_CID_BASE+13)
669 #define V4L2_CID_RED_BALANCE (V4L2_CID_BASE+14)
670 #define V4L2_CID_BLUE_BALANCE (V4L2_CID_BASE+15)
671 #define V4L2_CID_GAMMA (V4L2_CID_BASE+16)
672 #define V4L2_CID_WHITENESS (V4L2_CID_GAMMA) /* ? Not sure */
673 #define V4L2_CID_EXPOSURE (V4L2_CID_BASE+17)
674 #define V4L2_CID_AUTOGAIN (V4L2_CID_BASE+18)
675 #define V4L2_CID_GAIN (V4L2_CID_BASE+19)
676 #define V4L2_CID_HFLIP (V4L2_CID_BASE+20)
677 #define V4L2_CID_VFLIP (V4L2_CID_BASE+21)
678 #define V4L2_CID_HCENTER (V4L2_CID_BASE+22)
679 #define V4L2_CID_VCENTER (V4L2_CID_BASE+23)
680 #define V4L2_CID_LASTP1 (V4L2_CID_BASE+24) /* last CID + 1 */
689 enum v4l2_tuner_type type
;
700 struct v4l2_modulator
711 /* Flags for the 'capability' field */
712 #define V4L2_TUNER_CAP_LOW 0x0001
713 #define V4L2_TUNER_CAP_NORM 0x0002
714 #define V4L2_TUNER_CAP_STEREO 0x0010
715 #define V4L2_TUNER_CAP_LANG2 0x0020
716 #define V4L2_TUNER_CAP_SAP 0x0020
717 #define V4L2_TUNER_CAP_LANG1 0x0040
719 /* Flags for the 'rxsubchans' field */
720 #define V4L2_TUNER_SUB_MONO 0x0001
721 #define V4L2_TUNER_SUB_STEREO 0x0002
722 #define V4L2_TUNER_SUB_LANG2 0x0004
723 #define V4L2_TUNER_SUB_SAP 0x0004
724 #define V4L2_TUNER_SUB_LANG1 0x0008
726 /* Values for the 'audmode' field */
727 #define V4L2_TUNER_MODE_MONO 0x0000
728 #define V4L2_TUNER_MODE_STEREO 0x0001
729 #define V4L2_TUNER_MODE_LANG2 0x0002
730 #define V4L2_TUNER_MODE_SAP 0x0002
731 #define V4L2_TUNER_MODE_LANG1 0x0003
733 struct v4l2_frequency
736 enum v4l2_tuner_type type
;
752 /* Flags for the 'capability' field */
753 #define V4L2_AUDCAP_STEREO 0x00001
754 #define V4L2_AUDCAP_AVL 0x00002
756 /* Flags for the 'mode' field */
757 #define V4L2_AUDMODE_AVL 0x00001
769 * D A T A S E R V I C E S ( V B I )
771 * Data services API by Michael Schimek
774 struct v4l2_vbi_format
776 __u32 sampling_rate
; /* in 1 Hz */
778 __u32 samples_per_line
;
779 __u32 sample_format
; /* V4L2_PIX_FMT_* */
782 __u32 flags
; /* V4L2_VBI_* */
783 __u32 reserved
[2]; /* must be zero */
787 #define V4L2_VBI_UNSYNC (1<< 0)
788 #define V4L2_VBI_INTERLACED (1<< 1)
792 * A G G R E G A T E S T R U C T U R E S
795 /* Stream data format
799 enum v4l2_buf_type type
;
802 struct v4l2_pix_format pix
; // V4L2_BUF_TYPE_VIDEO_CAPTURE
803 struct v4l2_window win
; // V4L2_BUF_TYPE_VIDEO_OVERLAY
804 struct v4l2_vbi_format vbi
; // V4L2_BUF_TYPE_VBI_CAPTURE
805 __u8 raw_data
[200]; // user-defined
810 /* Stream type-dependent parameters
812 struct v4l2_streamparm
814 enum v4l2_buf_type type
;
817 struct v4l2_captureparm capture
;
818 struct v4l2_outputparm output
;
819 __u8 raw_data
[200]; /* user-defined */
826 * 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
829 #define VIDIOC_QUERYCAP _IOR ('V', 0, struct v4l2_capability)
830 #define VIDIOC_RESERVED _IO ('V', 1)
831 #define VIDIOC_ENUM_FMT _IOWR ('V', 2, struct v4l2_fmtdesc)
832 #define VIDIOC_G_FMT _IOWR ('V', 4, struct v4l2_format)
833 #define VIDIOC_S_FMT _IOWR ('V', 5, struct v4l2_format)
835 #define VIDIOC_G_COMP _IOR ('V', 6, struct v4l2_compression)
836 #define VIDIOC_S_COMP _IOW ('V', 7, struct v4l2_compression)
838 #define VIDIOC_REQBUFS _IOWR ('V', 8, struct v4l2_requestbuffers)
839 #define VIDIOC_QUERYBUF _IOWR ('V', 9, struct v4l2_buffer)
840 #define VIDIOC_G_FBUF _IOR ('V', 10, struct v4l2_framebuffer)
841 #define VIDIOC_S_FBUF _IOW ('V', 11, struct v4l2_framebuffer)
842 #define VIDIOC_OVERLAY _IOW ('V', 14, int)
843 #define VIDIOC_QBUF _IOWR ('V', 15, struct v4l2_buffer)
844 #define VIDIOC_DQBUF _IOWR ('V', 17, struct v4l2_buffer)
845 #define VIDIOC_STREAMON _IOW ('V', 18, int)
846 #define VIDIOC_STREAMOFF _IOW ('V', 19, int)
847 #define VIDIOC_G_PARM _IOWR ('V', 21, struct v4l2_streamparm)
848 #define VIDIOC_S_PARM _IOWR ('V', 22, struct v4l2_streamparm)
849 #define VIDIOC_G_STD _IOR ('V', 23, v4l2_std_id)
850 #define VIDIOC_S_STD _IOW ('V', 24, v4l2_std_id)
851 #define VIDIOC_ENUMSTD _IOWR ('V', 25, struct v4l2_standard)
852 #define VIDIOC_ENUMINPUT _IOWR ('V', 26, struct v4l2_input)
853 #define VIDIOC_G_CTRL _IOWR ('V', 27, struct v4l2_control)
854 #define VIDIOC_S_CTRL _IOWR ('V', 28, struct v4l2_control)
855 #define VIDIOC_G_TUNER _IOWR ('V', 29, struct v4l2_tuner)
856 #define VIDIOC_S_TUNER _IOW ('V', 30, struct v4l2_tuner)
857 #define VIDIOC_G_AUDIO _IOR ('V', 33, struct v4l2_audio)
858 #define VIDIOC_S_AUDIO _IOW ('V', 34, struct v4l2_audio)
859 #define VIDIOC_QUERYCTRL _IOWR ('V', 36, struct v4l2_queryctrl)
860 #define VIDIOC_QUERYMENU _IOWR ('V', 37, struct v4l2_querymenu)
861 #define VIDIOC_G_INPUT _IOR ('V', 38, int)
862 #define VIDIOC_S_INPUT _IOWR ('V', 39, int)
863 #define VIDIOC_G_OUTPUT _IOR ('V', 46, int)
864 #define VIDIOC_S_OUTPUT _IOWR ('V', 47, int)
865 #define VIDIOC_ENUMOUTPUT _IOWR ('V', 48, struct v4l2_output)
866 #define VIDIOC_G_AUDOUT _IOR ('V', 49, struct v4l2_audioout)
867 #define VIDIOC_S_AUDOUT _IOW ('V', 50, struct v4l2_audioout)
868 #define VIDIOC_G_MODULATOR _IOWR ('V', 54, struct v4l2_modulator)
869 #define VIDIOC_S_MODULATOR _IOW ('V', 55, struct v4l2_modulator)
870 #define VIDIOC_G_FREQUENCY _IOWR ('V', 56, struct v4l2_frequency)
871 #define VIDIOC_S_FREQUENCY _IOW ('V', 57, struct v4l2_frequency)
872 #define VIDIOC_CROPCAP _IOWR ('V', 58, struct v4l2_cropcap)
873 #define VIDIOC_G_CROP _IOWR ('V', 59, struct v4l2_crop)
874 #define VIDIOC_S_CROP _IOW ('V', 60, struct v4l2_crop)
875 #define VIDIOC_G_JPEGCOMP _IOR ('V', 61, struct v4l2_jpegcompression)
876 #define VIDIOC_S_JPEGCOMP _IOW ('V', 62, struct v4l2_jpegcompression)
877 #define VIDIOC_QUERYSTD _IOR ('V', 63, v4l2_std_id)
878 #define VIDIOC_TRY_FMT _IOWR ('V', 64, struct v4l2_format)
879 #define VIDIOC_ENUMAUDIO _IOWR ('V', 65, struct v4l2_audio)
880 #define VIDIOC_ENUMAUDOUT _IOWR ('V', 66, struct v4l2_audioout)
881 #define VIDIOC_G_PRIORITY _IOR ('V', 67, enum v4l2_priority)
882 #define VIDIOC_S_PRIORITY _IOW ('V', 68, enum v4l2_priority)
884 /* for compatibility, will go away some day */
885 #define VIDIOC_OVERLAY_OLD _IOWR ('V', 14, int)
886 #define VIDIOC_S_PARM_OLD _IOW ('V', 22, struct v4l2_streamparm)
887 #define VIDIOC_S_CTRL_OLD _IOW ('V', 28, struct v4l2_control)
888 #define VIDIOC_G_AUDIO_OLD _IOWR ('V', 33, struct v4l2_audio)
889 #define VIDIOC_G_AUDOUT_OLD _IOWR ('V', 49, struct v4l2_audioout)
890 #define VIDIOC_CROPCAP_OLD _IOR ('V', 58, struct v4l2_cropcap)
892 #define BASE_VIDIOC_PRIVATE 192 /* 192-255 are private */
898 * V 4 L 2 D R I V E R H E L P E R A P I
900 * Some commonly needed functions for drivers (v4l2-common.o module)
902 #include <linux/fs.h>
904 /* Video standard functions */
905 extern unsigned int v4l2_video_std_fps(struct v4l2_standard
*vs
);
906 extern int v4l2_video_std_construct(struct v4l2_standard
*vs
,
909 /* prority handling */
910 struct v4l2_prio_state
{
913 int v4l2_prio_init(struct v4l2_prio_state
*global
);
914 int v4l2_prio_change(struct v4l2_prio_state
*global
, enum v4l2_priority
*local
,
915 enum v4l2_priority
new);
916 int v4l2_prio_open(struct v4l2_prio_state
*global
, enum v4l2_priority
*local
);
917 int v4l2_prio_close(struct v4l2_prio_state
*global
, enum v4l2_priority
*local
);
918 enum v4l2_priority
v4l2_prio_max(struct v4l2_prio_state
*global
);
919 int v4l2_prio_check(struct v4l2_prio_state
*global
, enum v4l2_priority
*local
);
921 /* names for fancy debug output */
922 extern char *v4l2_field_names
[];
923 extern char *v4l2_type_names
[];
924 extern char *v4l2_ioctl_names
[];
926 /* Compatibility layer interface -- v4l1-compat module */
927 typedef int (*v4l2_kioctl
)(struct inode
*inode
, struct file
*file
,
928 unsigned int cmd
, void *arg
);
929 int v4l_compat_translate_ioctl(struct inode
*inode
, struct file
*file
,
930 int cmd
, void *arg
, v4l2_kioctl driver_ioctl
);
932 #endif /* __KERNEL__ */
933 #endif /* __LINUX_VIDEODEV2_H */