Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1#ifndef __LINUX_VIDEODEV_H
2#define __LINUX_VIDEODEV_H
3
4#include <linux/compiler.h>
5#include <linux/types.h>
6
7#define HAVE_V4L2 1
8#include <linux/videodev2.h>
9
10#ifdef __KERNEL__
11
12#include <linux/poll.h>
13#include <linux/mm.h>
14#include <linux/device.h>
15
16struct video_device
17{
18 /* device info */
19 struct device *dev;
20 char name[32];
21 int type; /* v4l1 */
22 int type2; /* v4l2 */
23 int hardware;
24 int minor;
25
26 /* device ops + callbacks */
27 struct file_operations *fops;
28 void (*release)(struct video_device *vfd);
29
30
31 /* obsolete -- fops->owner is used instead */
32 struct module *owner;
33 /* dev->driver_data will be used instead some day.
34 * Use the video_{get|set}_drvdata() helper functions,
35 * so the switch over will be transparent for you.
36 * Or use {pci|usb}_{get|set}_drvdata() directly. */
37 void *priv;
38
39 /* for videodev.c intenal usage -- please don't touch */
40 int users; /* video_exclusive_{open|close} ... */
41 struct semaphore lock; /* ... helper function uses these */
42 char devfs_name[64]; /* devfs */
43 struct class_device class_dev; /* sysfs */
44};
45
46#define VIDEO_MAJOR 81
47
48#define VFL_TYPE_GRABBER 0
49#define VFL_TYPE_VBI 1
50#define VFL_TYPE_RADIO 2
51#define VFL_TYPE_VTX 3
52
53extern int video_register_device(struct video_device *, int type, int nr);
54extern void video_unregister_device(struct video_device *);
55extern struct video_device* video_devdata(struct file*);
56
57#define to_video_device(cd) container_of(cd, struct video_device, class_dev)
58static inline void
59video_device_create_file(struct video_device *vfd,
60 struct class_device_attribute *attr)
61{
62 class_device_create_file(&vfd->class_dev, attr);
63}
64static inline void
65video_device_remove_file(struct video_device *vfd,
66 struct class_device_attribute *attr)
67{
68 class_device_remove_file(&vfd->class_dev, attr);
69}
70
71/* helper functions to alloc / release struct video_device, the
72 later can be used for video_device->release() */
73struct video_device *video_device_alloc(void);
74void video_device_release(struct video_device *vfd);
75
76/* helper functions to access driver private data. */
77static inline void *video_get_drvdata(struct video_device *dev)
78{
79 return dev->priv;
80}
81
82static inline void video_set_drvdata(struct video_device *dev, void *data)
83{
84 dev->priv = data;
85}
86
87extern int video_exclusive_open(struct inode *inode, struct file *file);
88extern int video_exclusive_release(struct inode *inode, struct file *file);
89extern int video_usercopy(struct inode *inode, struct file *file,
90 unsigned int cmd, unsigned long arg,
91 int (*func)(struct inode *inode, struct file *file,
92 unsigned int cmd, void *arg));
93#endif /* __KERNEL__ */
94
95#define VID_TYPE_CAPTURE 1 /* Can capture */
96#define VID_TYPE_TUNER 2 /* Can tune */
97#define VID_TYPE_TELETEXT 4 /* Does teletext */
98#define VID_TYPE_OVERLAY 8 /* Overlay onto frame buffer */
99#define VID_TYPE_CHROMAKEY 16 /* Overlay by chromakey */
100#define VID_TYPE_CLIPPING 32 /* Can clip */
101#define VID_TYPE_FRAMERAM 64 /* Uses the frame buffer memory */
102#define VID_TYPE_SCALES 128 /* Scalable */
103#define VID_TYPE_MONOCHROME 256 /* Monochrome only */
104#define VID_TYPE_SUBCAPTURE 512 /* Can capture subareas of the image */
105#define VID_TYPE_MPEG_DECODER 1024 /* Can decode MPEG streams */
106#define VID_TYPE_MPEG_ENCODER 2048 /* Can encode MPEG streams */
107#define VID_TYPE_MJPEG_DECODER 4096 /* Can decode MJPEG streams */
108#define VID_TYPE_MJPEG_ENCODER 8192 /* Can encode MJPEG streams */
109
110struct video_capability
111{
112 char name[32];
113 int type;
114 int channels; /* Num channels */
115 int audios; /* Num audio devices */
116 int maxwidth; /* Supported width */
117 int maxheight; /* And height */
118 int minwidth; /* Supported width */
119 int minheight; /* And height */
120};
121
122
123struct video_channel
124{
125 int channel;
126 char name[32];
127 int tuners;
128 __u32 flags;
129#define VIDEO_VC_TUNER 1 /* Channel has a tuner */
130#define VIDEO_VC_AUDIO 2 /* Channel has audio */
131 __u16 type;
132#define VIDEO_TYPE_TV 1
133#define VIDEO_TYPE_CAMERA 2
134 __u16 norm; /* Norm set by channel */
135};
136
137struct video_tuner
138{
139 int tuner;
140 char name[32];
141 unsigned long rangelow, rangehigh; /* Tuner range */
142 __u32 flags;
143#define VIDEO_TUNER_PAL 1
144#define VIDEO_TUNER_NTSC 2
145#define VIDEO_TUNER_SECAM 4
146#define VIDEO_TUNER_LOW 8 /* Uses KHz not MHz */
147#define VIDEO_TUNER_NORM 16 /* Tuner can set norm */
148#define VIDEO_TUNER_STEREO_ON 128 /* Tuner is seeing stereo */
149#define VIDEO_TUNER_RDS_ON 256 /* Tuner is seeing an RDS datastream */
150#define VIDEO_TUNER_MBS_ON 512 /* Tuner is seeing an MBS datastream */
151 __u16 mode; /* PAL/NTSC/SECAM/OTHER */
152#define VIDEO_MODE_PAL 0
153#define VIDEO_MODE_NTSC 1
154#define VIDEO_MODE_SECAM 2
155#define VIDEO_MODE_AUTO 3
156 __u16 signal; /* Signal strength 16bit scale */
157};
158
159struct video_picture
160{
161 __u16 brightness;
162 __u16 hue;
163 __u16 colour;
164 __u16 contrast;
165 __u16 whiteness; /* Black and white only */
166 __u16 depth; /* Capture depth */
167 __u16 palette; /* Palette in use */
168#define VIDEO_PALETTE_GREY 1 /* Linear greyscale */
169#define VIDEO_PALETTE_HI240 2 /* High 240 cube (BT848) */
170#define VIDEO_PALETTE_RGB565 3 /* 565 16 bit RGB */
171#define VIDEO_PALETTE_RGB24 4 /* 24bit RGB */
172#define VIDEO_PALETTE_RGB32 5 /* 32bit RGB */
173#define VIDEO_PALETTE_RGB555 6 /* 555 15bit RGB */
174#define VIDEO_PALETTE_YUV422 7 /* YUV422 capture */
175#define VIDEO_PALETTE_YUYV 8
176#define VIDEO_PALETTE_UYVY 9 /* The great thing about standards is ... */
177#define VIDEO_PALETTE_YUV420 10
178#define VIDEO_PALETTE_YUV411 11 /* YUV411 capture */
179#define VIDEO_PALETTE_RAW 12 /* RAW capture (BT848) */
180#define VIDEO_PALETTE_YUV422P 13 /* YUV 4:2:2 Planar */
181#define VIDEO_PALETTE_YUV411P 14 /* YUV 4:1:1 Planar */
182#define VIDEO_PALETTE_YUV420P 15 /* YUV 4:2:0 Planar */
183#define VIDEO_PALETTE_YUV410P 16 /* YUV 4:1:0 Planar */
184#define VIDEO_PALETTE_PLANAR 13 /* start of planar entries */
185#define VIDEO_PALETTE_COMPONENT 7 /* start of component entries */
186};
187
188struct video_audio
189{
190 int audio; /* Audio channel */
191 __u16 volume; /* If settable */
192 __u16 bass, treble;
193 __u32 flags;
194#define VIDEO_AUDIO_MUTE 1
195#define VIDEO_AUDIO_MUTABLE 2
196#define VIDEO_AUDIO_VOLUME 4
197#define VIDEO_AUDIO_BASS 8
198#define VIDEO_AUDIO_TREBLE 16
199#define VIDEO_AUDIO_BALANCE 32
200 char name[16];
201#define VIDEO_SOUND_MONO 1
202#define VIDEO_SOUND_STEREO 2
203#define VIDEO_SOUND_LANG1 4
204#define VIDEO_SOUND_LANG2 8
205 __u16 mode;
206 __u16 balance; /* Stereo balance */
207 __u16 step; /* Step actual volume uses */
208};
209
210struct video_clip
211{
212 __s32 x,y;
213 __s32 width, height;
214 struct video_clip *next; /* For user use/driver use only */
215};
216
217struct video_window
218{
219 __u32 x,y; /* Position of window */
220 __u32 width,height; /* Its size */
221 __u32 chromakey;
222 __u32 flags;
223 struct video_clip __user *clips; /* Set only */
224 int clipcount;
225#define VIDEO_WINDOW_INTERLACE 1
226#define VIDEO_WINDOW_CHROMAKEY 16 /* Overlay by chromakey */
227#define VIDEO_CLIP_BITMAP -1
228/* bitmap is 1024x625, a '1' bit represents a clipped pixel */
229#define VIDEO_CLIPMAP_SIZE (128 * 625)
230};
231
232struct video_capture
233{
234 __u32 x,y; /* Offsets into image */
235 __u32 width, height; /* Area to capture */
236 __u16 decimation; /* Decimation divider */
237 __u16 flags; /* Flags for capture */
238#define VIDEO_CAPTURE_ODD 0 /* Temporal */
239#define VIDEO_CAPTURE_EVEN 1
240};
241
242struct video_buffer
243{
244 void *base;
245 int height,width;
246 int depth;
247 int bytesperline;
248};
249
250struct video_mmap
251{
252 unsigned int frame; /* Frame (0 - n) for double buffer */
253 int height,width;
254 unsigned int format; /* should be VIDEO_PALETTE_* */
255};
256
257struct video_key
258{
259 __u8 key[8];
260 __u32 flags;
261};
262
263
264#define VIDEO_MAX_FRAME 32
265
266struct video_mbuf
267{
268 int size; /* Total memory to map */
269 int frames; /* Frames */
270 int offsets[VIDEO_MAX_FRAME];
271};
272
273
274#define VIDEO_NO_UNIT (-1)
275
276
277struct video_unit
278{
279 int video; /* Video minor */
280 int vbi; /* VBI minor */
281 int radio; /* Radio minor */
282 int audio; /* Audio minor */
283 int teletext; /* Teletext minor */
284};
285
286struct vbi_format {
287 __u32 sampling_rate; /* in Hz */
288 __u32 samples_per_line;
289 __u32 sample_format; /* VIDEO_PALETTE_RAW only (1 byte) */
290 __s32 start[2]; /* starting line for each frame */
291 __u32 count[2]; /* count of lines for each frame */
292 __u32 flags;
293#define VBI_UNSYNC 1 /* can distingues between top/bottom field */
294#define VBI_INTERLACED 2 /* lines are interlaced */
295};
296
297/* video_info is biased towards hardware mpeg encode/decode */
298/* but it could apply generically to any hardware compressor/decompressor */
299struct video_info
300{
301 __u32 frame_count; /* frames output since decode/encode began */
302 __u32 h_size; /* current unscaled horizontal size */
303 __u32 v_size; /* current unscaled veritcal size */
304 __u32 smpte_timecode; /* current SMPTE timecode (for current GOP) */
305 __u32 picture_type; /* current picture type */
306 __u32 temporal_reference; /* current temporal reference */
307 __u8 user_data[256]; /* user data last found in compressed stream */
308 /* user_data[0] contains user data flags, user_data[1] has count */
309};
310
311/* generic structure for setting playback modes */
312struct video_play_mode
313{
314 int mode;
315 int p1;
316 int p2;
317};
318
319/* for loading microcode / fpga programming */
320struct video_code
321{
322 char loadwhat[16]; /* name or tag of file being passed */
323 int datasize;
324 __u8 *data;
325};
326
327#define VIDIOCGCAP _IOR('v',1,struct video_capability) /* Get capabilities */
328#define VIDIOCGCHAN _IOWR('v',2,struct video_channel) /* Get channel info (sources) */
329#define VIDIOCSCHAN _IOW('v',3,struct video_channel) /* Set channel */
330#define VIDIOCGTUNER _IOWR('v',4,struct video_tuner) /* Get tuner abilities */
331#define VIDIOCSTUNER _IOW('v',5,struct video_tuner) /* Tune the tuner for the current channel */
332#define VIDIOCGPICT _IOR('v',6,struct video_picture) /* Get picture properties */
333#define VIDIOCSPICT _IOW('v',7,struct video_picture) /* Set picture properties */
334#define VIDIOCCAPTURE _IOW('v',8,int) /* Start, end capture */
335#define VIDIOCGWIN _IOR('v',9, struct video_window) /* Get the video overlay window */
336#define VIDIOCSWIN _IOW('v',10, struct video_window) /* Set the video overlay window - passes clip list for hardware smarts , chromakey etc */
337#define VIDIOCGFBUF _IOR('v',11, struct video_buffer) /* Get frame buffer */
338#define VIDIOCSFBUF _IOW('v',12, struct video_buffer) /* Set frame buffer - root only */
339#define VIDIOCKEY _IOR('v',13, struct video_key) /* Video key event - to dev 255 is to all - cuts capture on all DMA windows with this key (0xFFFFFFFF == all) */
340#define VIDIOCGFREQ _IOR('v',14, unsigned long) /* Set tuner */
341#define VIDIOCSFREQ _IOW('v',15, unsigned long) /* Set tuner */
342#define VIDIOCGAUDIO _IOR('v',16, struct video_audio) /* Get audio info */
343#define VIDIOCSAUDIO _IOW('v',17, struct video_audio) /* Audio source, mute etc */
344#define VIDIOCSYNC _IOW('v',18, int) /* Sync with mmap grabbing */
345#define VIDIOCMCAPTURE _IOW('v',19, struct video_mmap) /* Grab frames */
346#define VIDIOCGMBUF _IOR('v',20, struct video_mbuf) /* Memory map buffer info */
347#define VIDIOCGUNIT _IOR('v',21, struct video_unit) /* Get attached units */
348#define VIDIOCGCAPTURE _IOR('v',22, struct video_capture) /* Get subcapture */
349#define VIDIOCSCAPTURE _IOW('v',23, struct video_capture) /* Set subcapture */
350#define VIDIOCSPLAYMODE _IOW('v',24, struct video_play_mode) /* Set output video mode/feature */
351#define VIDIOCSWRITEMODE _IOW('v',25, int) /* Set write mode */
352#define VIDIOCGPLAYINFO _IOR('v',26, struct video_info) /* Get current playback info from hardware */
353#define VIDIOCSMICROCODE _IOW('v',27, struct video_code) /* Load microcode into hardware */
354#define VIDIOCGVBIFMT _IOR('v',28, struct vbi_format) /* Get VBI information */
355#define VIDIOCSVBIFMT _IOW('v',29, struct vbi_format) /* Set VBI information */
356
357
358#define BASE_VIDIOCPRIVATE 192 /* 192-255 are private */
359
360/* VIDIOCSWRITEMODE */
361#define VID_WRITE_MPEG_AUD 0
362#define VID_WRITE_MPEG_VID 1
363#define VID_WRITE_OSD 2
364#define VID_WRITE_TTX 3
365#define VID_WRITE_CC 4
366#define VID_WRITE_MJPEG 5
367
368/* VIDIOCSPLAYMODE */
369#define VID_PLAY_VID_OUT_MODE 0
370 /* p1: = VIDEO_MODE_PAL, VIDEO_MODE_NTSC, etc ... */
371#define VID_PLAY_GENLOCK 1
372 /* p1: 0 = OFF, 1 = ON */
373 /* p2: GENLOCK FINE DELAY value */
374#define VID_PLAY_NORMAL 2
375#define VID_PLAY_PAUSE 3
376#define VID_PLAY_SINGLE_FRAME 4
377#define VID_PLAY_FAST_FORWARD 5
378#define VID_PLAY_SLOW_MOTION 6
379#define VID_PLAY_IMMEDIATE_NORMAL 7
380#define VID_PLAY_SWITCH_CHANNELS 8
381#define VID_PLAY_FREEZE_FRAME 9
382#define VID_PLAY_STILL_MODE 10
383#define VID_PLAY_MASTER_MODE 11
384 /* p1: see below */
385#define VID_PLAY_MASTER_NONE 1
386#define VID_PLAY_MASTER_VIDEO 2
387#define VID_PLAY_MASTER_AUDIO 3
388#define VID_PLAY_ACTIVE_SCANLINES 12
389 /* p1 = first active; p2 = last active */
390#define VID_PLAY_RESET 13
391#define VID_PLAY_END_MARK 14
392
393
394
395#define VID_HARDWARE_BT848 1
396#define VID_HARDWARE_QCAM_BW 2
397#define VID_HARDWARE_PMS 3
398#define VID_HARDWARE_QCAM_C 4
399#define VID_HARDWARE_PSEUDO 5
400#define VID_HARDWARE_SAA5249 6
401#define VID_HARDWARE_AZTECH 7
402#define VID_HARDWARE_SF16MI 8
403#define VID_HARDWARE_RTRACK 9
404#define VID_HARDWARE_ZOLTRIX 10
405#define VID_HARDWARE_SAA7146 11
406#define VID_HARDWARE_VIDEUM 12 /* Reserved for Winnov videum */
407#define VID_HARDWARE_RTRACK2 13
408#define VID_HARDWARE_PERMEDIA2 14 /* Reserved for Permedia2 */
409#define VID_HARDWARE_RIVA128 15 /* Reserved for RIVA 128 */
410#define VID_HARDWARE_PLANB 16 /* PowerMac motherboard video-in */
411#define VID_HARDWARE_BROADWAY 17 /* Broadway project */
412#define VID_HARDWARE_GEMTEK 18
413#define VID_HARDWARE_TYPHOON 19
414#define VID_HARDWARE_VINO 20 /* SGI Indy Vino */
415#define VID_HARDWARE_CADET 21 /* Cadet radio */
416#define VID_HARDWARE_TRUST 22 /* Trust FM Radio */
417#define VID_HARDWARE_TERRATEC 23 /* TerraTec ActiveRadio */
418#define VID_HARDWARE_CPIA 24
419#define VID_HARDWARE_ZR36120 25 /* Zoran ZR36120/ZR36125 */
420#define VID_HARDWARE_ZR36067 26 /* Zoran ZR36067/36060 */
421#define VID_HARDWARE_OV511 27
422#define VID_HARDWARE_ZR356700 28 /* Zoran 36700 series */
423#define VID_HARDWARE_W9966 29
424#define VID_HARDWARE_SE401 30 /* SE401 USB webcams */
425#define VID_HARDWARE_PWC 31 /* Philips webcams */
426#define VID_HARDWARE_MEYE 32 /* Sony Vaio MotionEye cameras */
427#define VID_HARDWARE_CPIA2 33
428#define VID_HARDWARE_VICAM 34
429#define VID_HARDWARE_SF16FMR2 35
430#define VID_HARDWARE_W9968CF 36
431#define VID_HARDWARE_SAA7114H 37
432#define VID_HARDWARE_SN9C102 38
433#define VID_HARDWARE_ARV 39
434#endif /* __LINUX_VIDEODEV_H */
435
436/*
437 * Local variables:
438 * c-basic-offset: 8
439 * End:
440 */