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 */
19 #include <linux/compiler.h> /* need __user */
22 * M I S C E L L A N E O U S
25 /* Four-character-code (FOURCC) */
26 #define v4l2_fourcc(a,b,c,d)\
27 (((__u32)(a)<<0)|((__u32)(b)<<8)|((__u32)(c)<<16)|((__u32)(d)<<24))
33 V4L2_FIELD_ANY = 0, /* driver can choose from none,
34 top, bottom, interlaced
35 depending on whatever it thinks
37 V4L2_FIELD_NONE = 1, /* this device has no fields ... */
38 V4L2_FIELD_TOP = 2, /* top field only */
39 V4L2_FIELD_BOTTOM = 3, /* bottom field only */
40 V4L2_FIELD_INTERLACED = 4, /* both fields interlaced */
41 V4L2_FIELD_SEQ_TB = 5, /* both fields sequential into one
42 buffer, top-bottom order */
43 V4L2_FIELD_SEQ_BT = 6, /* same as above + bottom-top order */
44 V4L2_FIELD_ALTERNATE = 7, /* both fields alternating into
47 #define V4L2_FIELD_HAS_TOP(field) \
48 ((field) == V4L2_FIELD_TOP ||\
49 (field) == V4L2_FIELD_INTERLACED ||\
50 (field) == V4L2_FIELD_SEQ_TB ||\
51 (field) == V4L2_FIELD_SEQ_BT)
52 #define V4L2_FIELD_HAS_BOTTOM(field) \
53 ((field) == V4L2_FIELD_BOTTOM ||\
54 (field) == V4L2_FIELD_INTERLACED ||\
55 (field) == V4L2_FIELD_SEQ_TB ||\
56 (field) == V4L2_FIELD_SEQ_BT)
57 #define V4L2_FIELD_HAS_BOTH(field) \
58 ((field) == V4L2_FIELD_INTERLACED ||\
59 (field) == V4L2_FIELD_SEQ_TB ||\
60 (field) == V4L2_FIELD_SEQ_BT)
63 V4L2_BUF_TYPE_VIDEO_CAPTURE = 1,
64 V4L2_BUF_TYPE_VIDEO_OUTPUT = 2,
65 V4L2_BUF_TYPE_VIDEO_OVERLAY = 3,
66 V4L2_BUF_TYPE_VBI_CAPTURE = 4,
67 V4L2_BUF_TYPE_VBI_OUTPUT = 5,
68 V4L2_BUF_TYPE_PRIVATE = 0x80,
72 V4L2_CTRL_TYPE_INTEGER = 1,
73 V4L2_CTRL_TYPE_BOOLEAN = 2,
74 V4L2_CTRL_TYPE_MENU = 3,
75 V4L2_CTRL_TYPE_BUTTON = 4,
78 enum v4l2_tuner_type {
80 V4L2_TUNER_ANALOG_TV = 2,
81 V4L2_TUNER_DIGITAL_TV = 3,
86 V4L2_MEMORY_USERPTR = 2,
87 V4L2_MEMORY_OVERLAY = 3,
90 /* see also http://vektor.theorem.ca/graphics/ycbcr/ */
91 enum v4l2_colorspace {
92 /* ITU-R 601 -- broadcast NTSC/PAL */
93 V4L2_COLORSPACE_SMPTE170M = 1,
95 /* 1125-Line (US) HDTV */
96 V4L2_COLORSPACE_SMPTE240M = 2,
98 /* HD and modern captures. */
99 V4L2_COLORSPACE_REC709 = 3,
101 /* broken BT878 extents (601, luma range 16-253 instead of 16-235) */
102 V4L2_COLORSPACE_BT878 = 4,
104 /* These should be useful. Assume 601 extents. */
105 V4L2_COLORSPACE_470_SYSTEM_M = 5,
106 V4L2_COLORSPACE_470_SYSTEM_BG = 6,
108 /* I know there will be cameras that send this. So, this is
109 * unspecified chromaticities and full 0-255 on each of the
112 V4L2_COLORSPACE_JPEG = 7,
114 /* For RGB colourspaces, this is probably a good start. */
115 V4L2_COLORSPACE_SRGB = 8,
119 V4L2_PRIORITY_UNSET = 0, /* not initialized */
120 V4L2_PRIORITY_BACKGROUND = 1,
121 V4L2_PRIORITY_INTERACTIVE = 2,
122 V4L2_PRIORITY_RECORD = 3,
123 V4L2_PRIORITY_DEFAULT = V4L2_PRIORITY_INTERACTIVE,
139 * D R I V E R C A P A B I L I T I E S
141 struct v4l2_capability
143 __u8 driver[16]; /* i.e. "bttv" */
144 __u8 card[32]; /* i.e. "Hauppauge WinTV" */
145 __u8 bus_info[32]; /* "PCI:" + pci_name(pci_dev) */
146 __u32 version; /* should use KERNEL_VERSION() */
147 __u32 capabilities; /* Device capabilities */
151 /* Values for 'capabilities' field */
152 #define V4L2_CAP_VIDEO_CAPTURE 0x00000001 /* Is a video capture device */
153 #define V4L2_CAP_VIDEO_OUTPUT 0x00000002 /* Is a video output device */
154 #define V4L2_CAP_VIDEO_OVERLAY 0x00000004 /* Can do video overlay */
155 #define V4L2_CAP_VBI_CAPTURE 0x00000010 /* Is a VBI capture device */
156 #define V4L2_CAP_VBI_OUTPUT 0x00000020 /* Is a VBI output device */
157 #define V4L2_CAP_RDS_CAPTURE 0x00000100 /* RDS data capture */
159 #define V4L2_CAP_TUNER 0x00010000 /* has a tuner */
160 #define V4L2_CAP_AUDIO 0x00020000 /* has audio support */
161 #define V4L2_CAP_RADIO 0x00040000 /* is a radio device */
163 #define V4L2_CAP_READWRITE 0x01000000 /* read/write systemcalls */
164 #define V4L2_CAP_ASYNCIO 0x02000000 /* async I/O */
165 #define V4L2_CAP_STREAMING 0x04000000 /* streaming I/O ioctls */
168 * V I D E O I M A G E F O R M A T
171 struct v4l2_pix_format
176 enum v4l2_field field;
177 __u32 bytesperline; /* for padding, zero if unused */
179 enum v4l2_colorspace colorspace;
180 __u32 priv; /* private data, depends on pixelformat */
183 /* Pixel format FOURCC depth Description */
184 #define V4L2_PIX_FMT_RGB332 v4l2_fourcc('R','G','B','1') /* 8 RGB-3-3-2 */
185 #define V4L2_PIX_FMT_RGB555 v4l2_fourcc('R','G','B','O') /* 16 RGB-5-5-5 */
186 #define V4L2_PIX_FMT_RGB565 v4l2_fourcc('R','G','B','P') /* 16 RGB-5-6-5 */
187 #define V4L2_PIX_FMT_RGB555X v4l2_fourcc('R','G','B','Q') /* 16 RGB-5-5-5 BE */
188 #define V4L2_PIX_FMT_RGB565X v4l2_fourcc('R','G','B','R') /* 16 RGB-5-6-5 BE */
189 #define V4L2_PIX_FMT_BGR24 v4l2_fourcc('B','G','R','3') /* 24 BGR-8-8-8 */
190 #define V4L2_PIX_FMT_RGB24 v4l2_fourcc('R','G','B','3') /* 24 RGB-8-8-8 */
191 #define V4L2_PIX_FMT_BGR32 v4l2_fourcc('B','G','R','4') /* 32 BGR-8-8-8-8 */
192 #define V4L2_PIX_FMT_RGB32 v4l2_fourcc('R','G','B','4') /* 32 RGB-8-8-8-8 */
193 #define V4L2_PIX_FMT_GREY v4l2_fourcc('G','R','E','Y') /* 8 Greyscale */
194 #define V4L2_PIX_FMT_YVU410 v4l2_fourcc('Y','V','U','9') /* 9 YVU 4:1:0 */
195 #define V4L2_PIX_FMT_YVU420 v4l2_fourcc('Y','V','1','2') /* 12 YVU 4:2:0 */
196 #define V4L2_PIX_FMT_YUYV v4l2_fourcc('Y','U','Y','V') /* 16 YUV 4:2:2 */
197 #define V4L2_PIX_FMT_UYVY v4l2_fourcc('U','Y','V','Y') /* 16 YUV 4:2:2 */
198 #define V4L2_PIX_FMT_YUV422P v4l2_fourcc('4','2','2','P') /* 16 YVU422 planar */
199 #define V4L2_PIX_FMT_YUV411P v4l2_fourcc('4','1','1','P') /* 16 YVU411 planar */
200 #define V4L2_PIX_FMT_Y41P v4l2_fourcc('Y','4','1','P') /* 12 YUV 4:1:1 */
202 /* two planes -- one Y, one Cr + Cb interleaved */
203 #define V4L2_PIX_FMT_NV12 v4l2_fourcc('N','V','1','2') /* 12 Y/CbCr 4:2:0 */
204 #define V4L2_PIX_FMT_NV21 v4l2_fourcc('N','V','2','1') /* 12 Y/CrCb 4:2:0 */
206 /* The following formats are not defined in the V4L2 specification */
207 #define V4L2_PIX_FMT_YUV410 v4l2_fourcc('Y','U','V','9') /* 9 YUV 4:1:0 */
208 #define V4L2_PIX_FMT_YUV420 v4l2_fourcc('Y','U','1','2') /* 12 YUV 4:2:0 */
209 #define V4L2_PIX_FMT_YYUV v4l2_fourcc('Y','Y','U','V') /* 16 YUV 4:2:2 */
210 #define V4L2_PIX_FMT_HI240 v4l2_fourcc('H','I','2','4') /* 8 8-bit color */
212 /* see http://www.siliconimaging.com/RGB%20Bayer.htm */
213 #define V4L2_PIX_FMT_SBGGR8 v4l2_fourcc('B','A','8','1') /* 8 BGBG.. GRGR.. */
215 /* compressed formats */
216 #define V4L2_PIX_FMT_MJPEG v4l2_fourcc('M','J','P','G') /* Motion-JPEG */
217 #define V4L2_PIX_FMT_JPEG v4l2_fourcc('J','P','E','G') /* JFIF JPEG */
218 #define V4L2_PIX_FMT_DV v4l2_fourcc('d','v','s','d') /* 1394 */
219 #define V4L2_PIX_FMT_MPEG v4l2_fourcc('M','P','E','G') /* MPEG */
221 /* Vendor-specific formats */
222 #define V4L2_PIX_FMT_WNVA v4l2_fourcc('W','N','V','A') /* Winnov hw compress */
223 #define V4L2_PIX_FMT_SN9C10X v4l2_fourcc('S','9','1','0') /* SN9C10x compression */
224 #define V4L2_PIX_FMT_PWC1 v4l2_fourcc('P','W','C','1') /* pwc older webcam */
225 #define V4L2_PIX_FMT_PWC2 v4l2_fourcc('P','W','C','2') /* pwc newer webcam */
228 * F O R M A T E N U M E R A T I O N
232 __u32 index; /* Format number */
233 enum v4l2_buf_type type; /* buffer type */
235 __u8 description[32]; /* Description string */
236 __u32 pixelformat; /* Format fourcc */
240 #define V4L2_FMT_FLAG_COMPRESSED 0x0001
258 #define V4L2_TC_TYPE_24FPS 1
259 #define V4L2_TC_TYPE_25FPS 2
260 #define V4L2_TC_TYPE_30FPS 3
261 #define V4L2_TC_TYPE_50FPS 4
262 #define V4L2_TC_TYPE_60FPS 5
265 #define V4L2_TC_FLAG_DROPFRAME 0x0001 /* "drop-frame" mode */
266 #define V4L2_TC_FLAG_COLORFRAME 0x0002
267 #define V4L2_TC_USERBITS_field 0x000C
268 #define V4L2_TC_USERBITS_USERDEFINED 0x0000
269 #define V4L2_TC_USERBITS_8BITCHARS 0x0008
270 /* The above is based on SMPTE timecodes */
275 * M P E G C O M P R E S S I O N P A R A M E T E R S
277 * ### WARNING: this is still work-in-progress right now, most likely
278 * ### there will be some incompatible changes.
283 enum v4l2_bitrate_mode {
284 V4L2_BITRATE_NONE = 0, /* not specified */
285 V4L2_BITRATE_CBR, /* constant bitrate */
286 V4L2_BITRATE_VBR, /* variable bitrate */
288 struct v4l2_bitrate {
289 /* rates are specified in kbit/sec */
290 enum v4l2_bitrate_mode mode;
292 __u32 target; /* use this one for CBR */
296 enum v4l2_mpeg_streamtype {
297 V4L2_MPEG_SS_1, /* MPEG-1 system stream */
298 V4L2_MPEG_PS_2, /* MPEG-2 program stream */
299 V4L2_MPEG_TS_2, /* MPEG-2 transport stream */
300 V4L2_MPEG_PS_DVD, /* MPEG-2 program stream with DVD header fixups */
302 enum v4l2_mpeg_audiotype {
303 V4L2_MPEG_AU_2_I, /* MPEG-2 layer 1 */
304 V4L2_MPEG_AU_2_II, /* MPEG-2 layer 2 */
305 V4L2_MPEG_AU_2_III, /* MPEG-2 layer 3 */
306 V4L2_MPEG_AC3, /* AC3 */
307 V4L2_MPEG_LPCM, /* LPCM */
309 enum v4l2_mpeg_videotype {
310 V4L2_MPEG_VI_1, /* MPEG-1 */
311 V4L2_MPEG_VI_2, /* MPEG-2 */
313 enum v4l2_mpeg_aspectratio {
314 V4L2_MPEG_ASPECT_SQUARE = 1, /* square pixel */
315 V4L2_MPEG_ASPECT_4_3 = 2, /* 4 : 3 */
316 V4L2_MPEG_ASPECT_16_9 = 3, /* 16 : 9 */
317 V4L2_MPEG_ASPECT_1_221 = 4, /* 1 : 2,21 */
320 struct v4l2_mpeg_compression {
322 enum v4l2_mpeg_streamtype st_type;
323 struct v4l2_bitrate st_bitrate;
325 /* transport streams */
333 __u16 reserved_1; /* align */
336 enum v4l2_mpeg_audiotype au_type;
337 struct v4l2_bitrate au_bitrate;
338 __u32 au_sample_rate;
340 __u8 reserved_2[3]; /* align */
343 enum v4l2_mpeg_videotype vi_type;
344 enum v4l2_mpeg_aspectratio vi_aspect_ratio;
345 struct v4l2_bitrate vi_bitrate;
347 __u16 vi_frames_per_gop;
348 __u16 vi_bframes_count;
350 __u8 reserved_3[3]; /* align */
355 __u32 reserved_4:30; /* align */
357 /* I don't expect the above being perfect yet ;) */
362 struct v4l2_jpegcompression
366 int APPn; /* Number of APP segment to be written,
368 int APP_len; /* Length of data in JPEG APPn segment */
369 char APP_data[60]; /* Data in the JPEG APPn segment. */
371 int COM_len; /* Length of data in JPEG COM segment */
372 char COM_data[60]; /* Data in JPEG COM segment */
374 __u32 jpeg_markers; /* Which markers should go into the JPEG
375 * output. Unless you exactly know what
376 * you do, leave them untouched.
377 * Inluding less markers will make the
378 * resulting code smaller, but there will
379 * be fewer aplications which can read it.
380 * The presence of the APP and COM marker
381 * is influenced by APP_len and COM_len
382 * ONLY, not by this property! */
384 #define V4L2_JPEG_MARKER_DHT (1<<3) /* Define Huffman Tables */
385 #define V4L2_JPEG_MARKER_DQT (1<<4) /* Define Quantization Tables */
386 #define V4L2_JPEG_MARKER_DRI (1<<5) /* Define Restart Interval */
387 #define V4L2_JPEG_MARKER_COM (1<<6) /* Comment segment */
388 #define V4L2_JPEG_MARKER_APP (1<<7) /* App segment, driver will
389 * allways use APP0 */
394 * M E M O R Y - M A P P I N G B U F F E R S
396 struct v4l2_requestbuffers
399 enum v4l2_buf_type type;
400 enum v4l2_memory memory;
407 enum v4l2_buf_type type;
410 enum v4l2_field field;
411 struct timeval timestamp;
412 struct v4l2_timecode timecode;
415 /* memory location */
416 enum v4l2_memory memory;
419 unsigned long userptr;
426 /* Flags for 'flags' field */
427 #define V4L2_BUF_FLAG_MAPPED 0x0001 /* Buffer is mapped (flag) */
428 #define V4L2_BUF_FLAG_QUEUED 0x0002 /* Buffer is queued for processing */
429 #define V4L2_BUF_FLAG_DONE 0x0004 /* Buffer is ready */
430 #define V4L2_BUF_FLAG_KEYFRAME 0x0008 /* Image is a keyframe (I-frame) */
431 #define V4L2_BUF_FLAG_PFRAME 0x0010 /* Image is a P-frame */
432 #define V4L2_BUF_FLAG_BFRAME 0x0020 /* Image is a B-frame */
433 #define V4L2_BUF_FLAG_TIMECODE 0x0100 /* timecode field is valid */
434 #define V4L2_BUF_FLAG_INPUT 0x0200 /* input field is valid */
437 * O V E R L A Y P R E V I E W
439 struct v4l2_framebuffer
443 /* FIXME: in theory we should pass something like PCI device + memory
444 * region + offset instead of some physical address */
446 struct v4l2_pix_format fmt;
448 /* Flags for the 'capability' field. Read only */
449 #define V4L2_FBUF_CAP_EXTERNOVERLAY 0x0001
450 #define V4L2_FBUF_CAP_CHROMAKEY 0x0002
451 #define V4L2_FBUF_CAP_LIST_CLIPPING 0x0004
452 #define V4L2_FBUF_CAP_BITMAP_CLIPPING 0x0008
453 /* Flags for the 'flags' field. */
454 #define V4L2_FBUF_FLAG_PRIMARY 0x0001
455 #define V4L2_FBUF_FLAG_OVERLAY 0x0002
456 #define V4L2_FBUF_FLAG_CHROMAKEY 0x0004
461 struct v4l2_clip *next;
467 enum v4l2_field field;
469 struct v4l2_clip __user *clips;
476 * C A P T U R E P A R A M E T E R S
478 struct v4l2_captureparm
480 __u32 capability; /* Supported modes */
481 __u32 capturemode; /* Current mode */
482 struct v4l2_fract timeperframe; /* Time per frame in .1us units */
483 __u32 extendedmode; /* Driver-specific extensions */
484 __u32 readbuffers; /* # of buffers for read */
487 /* Flags for 'capability' and 'capturemode' fields */
488 #define V4L2_MODE_HIGHQUALITY 0x0001 /* High quality imaging mode */
489 #define V4L2_CAP_TIMEPERFRAME 0x1000 /* timeperframe field is supported */
491 struct v4l2_outputparm
493 __u32 capability; /* Supported modes */
494 __u32 outputmode; /* Current mode */
495 struct v4l2_fract timeperframe; /* Time per frame in seconds */
496 __u32 extendedmode; /* Driver-specific extensions */
497 __u32 writebuffers; /* # of buffers for write */
502 * I N P U T I M A G E C R O P P I N G
505 struct v4l2_cropcap {
506 enum v4l2_buf_type type;
507 struct v4l2_rect bounds;
508 struct v4l2_rect defrect;
509 struct v4l2_fract pixelaspect;
513 enum v4l2_buf_type type;
518 * A N A L O G V I D E O S T A N D A R D
521 typedef __u64 v4l2_std_id;
523 /* one bit for each */
524 #define V4L2_STD_PAL_B ((v4l2_std_id)0x00000001)
525 #define V4L2_STD_PAL_B1 ((v4l2_std_id)0x00000002)
526 #define V4L2_STD_PAL_G ((v4l2_std_id)0x00000004)
527 #define V4L2_STD_PAL_H ((v4l2_std_id)0x00000008)
528 #define V4L2_STD_PAL_I ((v4l2_std_id)0x00000010)
529 #define V4L2_STD_PAL_D ((v4l2_std_id)0x00000020)
530 #define V4L2_STD_PAL_D1 ((v4l2_std_id)0x00000040)
531 #define V4L2_STD_PAL_K ((v4l2_std_id)0x00000080)
533 #define V4L2_STD_PAL_M ((v4l2_std_id)0x00000100)
534 #define V4L2_STD_PAL_N ((v4l2_std_id)0x00000200)
535 #define V4L2_STD_PAL_Nc ((v4l2_std_id)0x00000400)
536 #define V4L2_STD_PAL_60 ((v4l2_std_id)0x00000800)
538 #define V4L2_STD_NTSC_M ((v4l2_std_id)0x00001000)
539 #define V4L2_STD_NTSC_M_JP ((v4l2_std_id)0x00002000)
541 #define V4L2_STD_SECAM_B ((v4l2_std_id)0x00010000)
542 #define V4L2_STD_SECAM_D ((v4l2_std_id)0x00020000)
543 #define V4L2_STD_SECAM_G ((v4l2_std_id)0x00040000)
544 #define V4L2_STD_SECAM_H ((v4l2_std_id)0x00080000)
545 #define V4L2_STD_SECAM_K ((v4l2_std_id)0x00100000)
546 #define V4L2_STD_SECAM_K1 ((v4l2_std_id)0x00200000)
547 #define V4L2_STD_SECAM_L ((v4l2_std_id)0x00400000)
550 #define V4L2_STD_ATSC_8_VSB ((v4l2_std_id)0x01000000)
551 #define V4L2_STD_ATSC_16_VSB ((v4l2_std_id)0x02000000)
553 /* some common needed stuff */
554 #define V4L2_STD_PAL_BG (V4L2_STD_PAL_B |\
557 #define V4L2_STD_PAL_DK (V4L2_STD_PAL_D |\
560 #define V4L2_STD_PAL (V4L2_STD_PAL_BG |\
564 #define V4L2_STD_NTSC (V4L2_STD_NTSC_M |\
566 #define V4L2_STD_SECAM_DK (V4L2_STD_SECAM_D |\
569 #define V4L2_STD_SECAM (V4L2_STD_SECAM_B |\
575 #define V4L2_STD_525_60 (V4L2_STD_PAL_M |\
578 #define V4L2_STD_625_50 (V4L2_STD_PAL |\
582 #define V4L2_STD_ATSC (V4L2_STD_ATSC_8_VSB |\
583 V4L2_STD_ATSC_16_VSB)
585 #define V4L2_STD_UNKNOWN 0
586 #define V4L2_STD_ALL (V4L2_STD_525_60 |\
594 struct v4l2_fract frameperiod; /* Frames, not fields */
601 * V I D E O I N P U T S
605 __u32 index; /* Which input */
606 __u8 name[32]; /* Label */
607 __u32 type; /* Type of input */
608 __u32 audioset; /* Associated audios (bitfield) */
609 __u32 tuner; /* Associated tuner */
614 /* Values for the 'type' field */
615 #define V4L2_INPUT_TYPE_TUNER 1
616 #define V4L2_INPUT_TYPE_CAMERA 2
618 /* field 'status' - general */
619 #define V4L2_IN_ST_NO_POWER 0x00000001 /* Attached device is off */
620 #define V4L2_IN_ST_NO_SIGNAL 0x00000002
621 #define V4L2_IN_ST_NO_COLOR 0x00000004
623 /* field 'status' - analog */
624 #define V4L2_IN_ST_NO_H_LOCK 0x00000100 /* No horizontal sync lock */
625 #define V4L2_IN_ST_COLOR_KILL 0x00000200 /* Color killer is active */
627 /* field 'status' - digital */
628 #define V4L2_IN_ST_NO_SYNC 0x00010000 /* No synchronization lock */
629 #define V4L2_IN_ST_NO_EQU 0x00020000 /* No equalizer lock */
630 #define V4L2_IN_ST_NO_CARRIER 0x00040000 /* Carrier recovery failed */
632 /* field 'status' - VCR and set-top box */
633 #define V4L2_IN_ST_MACROVISION 0x01000000 /* Macrovision detected */
634 #define V4L2_IN_ST_NO_ACCESS 0x02000000 /* Conditional access denied */
635 #define V4L2_IN_ST_VTR 0x04000000 /* VTR time constant */
638 * V I D E O O U T P U T S
642 __u32 index; /* Which output */
643 __u8 name[32]; /* Label */
644 __u32 type; /* Type of output */
645 __u32 audioset; /* Associated audios (bitfield) */
646 __u32 modulator; /* Associated modulator */
650 /* Values for the 'type' field */
651 #define V4L2_OUTPUT_TYPE_MODULATOR 1
652 #define V4L2_OUTPUT_TYPE_ANALOG 2
653 #define V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY 3
664 /* Used in the VIDIOC_QUERYCTRL ioctl for querying controls */
665 struct v4l2_queryctrl
668 enum v4l2_ctrl_type type;
669 __u8 name[32]; /* Whatever */
670 __s32 minimum; /* Note signedness */
678 /* Used in the VIDIOC_QUERYMENU ioctl for querying menu items */
679 struct v4l2_querymenu
683 __u8 name[32]; /* Whatever */
688 #define V4L2_CTRL_FLAG_DISABLED 0x0001
689 #define V4L2_CTRL_FLAG_GRABBED 0x0002
691 /* Control IDs defined by V4L2 */
692 #define V4L2_CID_BASE 0x00980900
693 /* IDs reserved for driver specific controls */
694 #define V4L2_CID_PRIVATE_BASE 0x08000000
696 #define V4L2_CID_BRIGHTNESS (V4L2_CID_BASE+0)
697 #define V4L2_CID_CONTRAST (V4L2_CID_BASE+1)
698 #define V4L2_CID_SATURATION (V4L2_CID_BASE+2)
699 #define V4L2_CID_HUE (V4L2_CID_BASE+3)
700 #define V4L2_CID_AUDIO_VOLUME (V4L2_CID_BASE+5)
701 #define V4L2_CID_AUDIO_BALANCE (V4L2_CID_BASE+6)
702 #define V4L2_CID_AUDIO_BASS (V4L2_CID_BASE+7)
703 #define V4L2_CID_AUDIO_TREBLE (V4L2_CID_BASE+8)
704 #define V4L2_CID_AUDIO_MUTE (V4L2_CID_BASE+9)
705 #define V4L2_CID_AUDIO_LOUDNESS (V4L2_CID_BASE+10)
706 #define V4L2_CID_BLACK_LEVEL (V4L2_CID_BASE+11)
707 #define V4L2_CID_AUTO_WHITE_BALANCE (V4L2_CID_BASE+12)
708 #define V4L2_CID_DO_WHITE_BALANCE (V4L2_CID_BASE+13)
709 #define V4L2_CID_RED_BALANCE (V4L2_CID_BASE+14)
710 #define V4L2_CID_BLUE_BALANCE (V4L2_CID_BASE+15)
711 #define V4L2_CID_GAMMA (V4L2_CID_BASE+16)
712 #define V4L2_CID_WHITENESS (V4L2_CID_GAMMA) /* ? Not sure */
713 #define V4L2_CID_EXPOSURE (V4L2_CID_BASE+17)
714 #define V4L2_CID_AUTOGAIN (V4L2_CID_BASE+18)
715 #define V4L2_CID_GAIN (V4L2_CID_BASE+19)
716 #define V4L2_CID_HFLIP (V4L2_CID_BASE+20)
717 #define V4L2_CID_VFLIP (V4L2_CID_BASE+21)
718 #define V4L2_CID_HCENTER (V4L2_CID_BASE+22)
719 #define V4L2_CID_VCENTER (V4L2_CID_BASE+23)
720 #define V4L2_CID_LASTP1 (V4L2_CID_BASE+24) /* last CID + 1 */
729 enum v4l2_tuner_type type;
740 struct v4l2_modulator
751 /* Flags for the 'capability' field */
752 #define V4L2_TUNER_CAP_LOW 0x0001
753 #define V4L2_TUNER_CAP_NORM 0x0002
754 #define V4L2_TUNER_CAP_STEREO 0x0010
755 #define V4L2_TUNER_CAP_LANG2 0x0020
756 #define V4L2_TUNER_CAP_SAP 0x0020
757 #define V4L2_TUNER_CAP_LANG1 0x0040
759 /* Flags for the 'rxsubchans' field */
760 #define V4L2_TUNER_SUB_MONO 0x0001
761 #define V4L2_TUNER_SUB_STEREO 0x0002
762 #define V4L2_TUNER_SUB_LANG2 0x0004
763 #define V4L2_TUNER_SUB_SAP 0x0004
764 #define V4L2_TUNER_SUB_LANG1 0x0008
766 /* Values for the 'audmode' field */
767 #define V4L2_TUNER_MODE_MONO 0x0000
768 #define V4L2_TUNER_MODE_STEREO 0x0001
769 #define V4L2_TUNER_MODE_LANG2 0x0002
770 #define V4L2_TUNER_MODE_SAP 0x0002
771 #define V4L2_TUNER_MODE_LANG1 0x0003
773 struct v4l2_frequency
776 enum v4l2_tuner_type type;
792 /* Flags for the 'capability' field */
793 #define V4L2_AUDCAP_STEREO 0x00001
794 #define V4L2_AUDCAP_AVL 0x00002
796 /* Flags for the 'mode' field */
797 #define V4L2_AUDMODE_AVL 0x00001
809 * D A T A S E R V I C E S ( V B I )
811 * Data services API by Michael Schimek
814 struct v4l2_vbi_format
816 __u32 sampling_rate; /* in 1 Hz */
818 __u32 samples_per_line;
819 __u32 sample_format; /* V4L2_PIX_FMT_* */
822 __u32 flags; /* V4L2_VBI_* */
823 __u32 reserved[2]; /* must be zero */
827 #define V4L2_VBI_UNSYNC (1<< 0)
828 #define V4L2_VBI_INTERLACED (1<< 1)
832 * A G G R E G A T E S T R U C T U R E S
835 /* Stream data format
839 enum v4l2_buf_type type;
842 struct v4l2_pix_format pix; // V4L2_BUF_TYPE_VIDEO_CAPTURE
843 struct v4l2_window win; // V4L2_BUF_TYPE_VIDEO_OVERLAY
844 struct v4l2_vbi_format vbi; // V4L2_BUF_TYPE_VBI_CAPTURE
845 __u8 raw_data[200]; // user-defined
850 /* Stream type-dependent parameters
852 struct v4l2_streamparm
854 enum v4l2_buf_type type;
857 struct v4l2_captureparm capture;
858 struct v4l2_outputparm output;
859 __u8 raw_data[200]; /* user-defined */
866 * 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
869 #define VIDIOC_QUERYCAP _IOR ('V', 0, struct v4l2_capability)
870 #define VIDIOC_RESERVED _IO ('V', 1)
871 #define VIDIOC_ENUM_FMT _IOWR ('V', 2, struct v4l2_fmtdesc)
872 #define VIDIOC_G_FMT _IOWR ('V', 4, struct v4l2_format)
873 #define VIDIOC_S_FMT _IOWR ('V', 5, struct v4l2_format)
874 #if 1 /* experimental */
875 #define VIDIOC_G_MPEGCOMP _IOR ('V', 6, struct v4l2_mpeg_compression)
876 #define VIDIOC_S_MPEGCOMP _IOW ('V', 7, struct v4l2_mpeg_compression)
878 #define VIDIOC_REQBUFS _IOWR ('V', 8, struct v4l2_requestbuffers)
879 #define VIDIOC_QUERYBUF _IOWR ('V', 9, struct v4l2_buffer)
880 #define VIDIOC_G_FBUF _IOR ('V', 10, struct v4l2_framebuffer)
881 #define VIDIOC_S_FBUF _IOW ('V', 11, struct v4l2_framebuffer)
882 #define VIDIOC_OVERLAY _IOW ('V', 14, int)
883 #define VIDIOC_QBUF _IOWR ('V', 15, struct v4l2_buffer)
884 #define VIDIOC_DQBUF _IOWR ('V', 17, struct v4l2_buffer)
885 #define VIDIOC_STREAMON _IOW ('V', 18, int)
886 #define VIDIOC_STREAMOFF _IOW ('V', 19, int)
887 #define VIDIOC_G_PARM _IOWR ('V', 21, struct v4l2_streamparm)
888 #define VIDIOC_S_PARM _IOWR ('V', 22, struct v4l2_streamparm)
889 #define VIDIOC_G_STD _IOR ('V', 23, v4l2_std_id)
890 #define VIDIOC_S_STD _IOW ('V', 24, v4l2_std_id)
891 #define VIDIOC_ENUMSTD _IOWR ('V', 25, struct v4l2_standard)
892 #define VIDIOC_ENUMINPUT _IOWR ('V', 26, struct v4l2_input)
893 #define VIDIOC_G_CTRL _IOWR ('V', 27, struct v4l2_control)
894 #define VIDIOC_S_CTRL _IOWR ('V', 28, struct v4l2_control)
895 #define VIDIOC_G_TUNER _IOWR ('V', 29, struct v4l2_tuner)
896 #define VIDIOC_S_TUNER _IOW ('V', 30, struct v4l2_tuner)
897 #define VIDIOC_G_AUDIO _IOR ('V', 33, struct v4l2_audio)
898 #define VIDIOC_S_AUDIO _IOW ('V', 34, struct v4l2_audio)
899 #define VIDIOC_QUERYCTRL _IOWR ('V', 36, struct v4l2_queryctrl)
900 #define VIDIOC_QUERYMENU _IOWR ('V', 37, struct v4l2_querymenu)
901 #define VIDIOC_G_INPUT _IOR ('V', 38, int)
902 #define VIDIOC_S_INPUT _IOWR ('V', 39, int)
903 #define VIDIOC_G_OUTPUT _IOR ('V', 46, int)
904 #define VIDIOC_S_OUTPUT _IOWR ('V', 47, int)
905 #define VIDIOC_ENUMOUTPUT _IOWR ('V', 48, struct v4l2_output)
906 #define VIDIOC_G_AUDOUT _IOR ('V', 49, struct v4l2_audioout)
907 #define VIDIOC_S_AUDOUT _IOW ('V', 50, struct v4l2_audioout)
908 #define VIDIOC_G_MODULATOR _IOWR ('V', 54, struct v4l2_modulator)
909 #define VIDIOC_S_MODULATOR _IOW ('V', 55, struct v4l2_modulator)
910 #define VIDIOC_G_FREQUENCY _IOWR ('V', 56, struct v4l2_frequency)
911 #define VIDIOC_S_FREQUENCY _IOW ('V', 57, struct v4l2_frequency)
912 #define VIDIOC_CROPCAP _IOWR ('V', 58, struct v4l2_cropcap)
913 #define VIDIOC_G_CROP _IOWR ('V', 59, struct v4l2_crop)
914 #define VIDIOC_S_CROP _IOW ('V', 60, struct v4l2_crop)
915 #define VIDIOC_G_JPEGCOMP _IOR ('V', 61, struct v4l2_jpegcompression)
916 #define VIDIOC_S_JPEGCOMP _IOW ('V', 62, struct v4l2_jpegcompression)
917 #define VIDIOC_QUERYSTD _IOR ('V', 63, v4l2_std_id)
918 #define VIDIOC_TRY_FMT _IOWR ('V', 64, struct v4l2_format)
919 #define VIDIOC_ENUMAUDIO _IOWR ('V', 65, struct v4l2_audio)
920 #define VIDIOC_ENUMAUDOUT _IOWR ('V', 66, struct v4l2_audioout)
921 #define VIDIOC_G_PRIORITY _IOR ('V', 67, enum v4l2_priority)
922 #define VIDIOC_S_PRIORITY _IOW ('V', 68, enum v4l2_priority)
924 /* for compatibility, will go away some day */
925 #define VIDIOC_OVERLAY_OLD _IOWR ('V', 14, int)
926 #define VIDIOC_S_PARM_OLD _IOW ('V', 22, struct v4l2_streamparm)
927 #define VIDIOC_S_CTRL_OLD _IOW ('V', 28, struct v4l2_control)
928 #define VIDIOC_G_AUDIO_OLD _IOWR ('V', 33, struct v4l2_audio)
929 #define VIDIOC_G_AUDOUT_OLD _IOWR ('V', 49, struct v4l2_audioout)
930 #define VIDIOC_CROPCAP_OLD _IOR ('V', 58, struct v4l2_cropcap)
932 #define BASE_VIDIOC_PRIVATE 192 /* 192-255 are private */
938 * V 4 L 2 D R I V E R H E L P E R A P I
940 * Some commonly needed functions for drivers (v4l2-common.o module)
942 #include <linux/fs.h>
944 /* Video standard functions */
945 extern unsigned int v4l2_video_std_fps(struct v4l2_standard *vs);
946 extern int v4l2_video_std_construct(struct v4l2_standard *vs,
949 /* prority handling */
950 struct v4l2_prio_state {
953 int v4l2_prio_init(struct v4l2_prio_state *global);
954 int v4l2_prio_change(struct v4l2_prio_state *global, enum v4l2_priority *local,
955 enum v4l2_priority new);
956 int v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local);
957 int v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority *local);
958 enum v4l2_priority v4l2_prio_max(struct v4l2_prio_state *global);
959 int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority *local);
961 /* names for fancy debug output */
962 extern char *v4l2_field_names[];
963 extern char *v4l2_type_names[];
964 extern char *v4l2_ioctl_names[];
966 /* Compatibility layer interface -- v4l1-compat module */
967 typedef int (*v4l2_kioctl)(struct inode *inode, struct file *file,
968 unsigned int cmd, void *arg);
969 int v4l_compat_translate_ioctl(struct inode *inode, struct file *file,
970 int cmd, void *arg, v4l2_kioctl driver_ioctl);
972 #endif /* __KERNEL__ */
973 #endif /* __LINUX_VIDEODEV2_H */