3 * V 4 L 2 D R I V E R H E L P E R A P I
5 * Moved from videodev2.h
7 * Some commonly needed functions for drivers (v4l2-common.o module)
12 #include <linux/poll.h>
14 #include <linux/mutex.h>
15 #include <linux/compiler.h> /* need __user */
16 #include <linux/videodev2.h>
20 struct v4l2_ioctl_ops
{
23 /* VIDIOC_QUERYCAP handler */
24 int (*vidioc_querycap
)(struct file
*file
, void *fh
, struct v4l2_capability
*cap
);
26 /* Priority handling */
27 int (*vidioc_g_priority
) (struct file
*file
, void *fh
,
28 enum v4l2_priority
*p
);
29 int (*vidioc_s_priority
) (struct file
*file
, void *fh
,
30 enum v4l2_priority p
);
32 /* VIDIOC_ENUM_FMT handlers */
33 int (*vidioc_enum_fmt_vid_cap
) (struct file
*file
, void *fh
,
34 struct v4l2_fmtdesc
*f
);
35 int (*vidioc_enum_fmt_vid_overlay
) (struct file
*file
, void *fh
,
36 struct v4l2_fmtdesc
*f
);
37 int (*vidioc_enum_fmt_vid_out
) (struct file
*file
, void *fh
,
38 struct v4l2_fmtdesc
*f
);
39 int (*vidioc_enum_fmt_vid_cap_mplane
)(struct file
*file
, void *fh
,
40 struct v4l2_fmtdesc
*f
);
41 int (*vidioc_enum_fmt_vid_out_mplane
)(struct file
*file
, void *fh
,
42 struct v4l2_fmtdesc
*f
);
43 int (*vidioc_enum_fmt_sdr_cap
) (struct file
*file
, void *fh
,
44 struct v4l2_fmtdesc
*f
);
46 /* VIDIOC_G_FMT handlers */
47 int (*vidioc_g_fmt_vid_cap
) (struct file
*file
, void *fh
,
48 struct v4l2_format
*f
);
49 int (*vidioc_g_fmt_vid_overlay
)(struct file
*file
, void *fh
,
50 struct v4l2_format
*f
);
51 int (*vidioc_g_fmt_vid_out
) (struct file
*file
, void *fh
,
52 struct v4l2_format
*f
);
53 int (*vidioc_g_fmt_vid_out_overlay
)(struct file
*file
, void *fh
,
54 struct v4l2_format
*f
);
55 int (*vidioc_g_fmt_vbi_cap
) (struct file
*file
, void *fh
,
56 struct v4l2_format
*f
);
57 int (*vidioc_g_fmt_vbi_out
) (struct file
*file
, void *fh
,
58 struct v4l2_format
*f
);
59 int (*vidioc_g_fmt_sliced_vbi_cap
)(struct file
*file
, void *fh
,
60 struct v4l2_format
*f
);
61 int (*vidioc_g_fmt_sliced_vbi_out
)(struct file
*file
, void *fh
,
62 struct v4l2_format
*f
);
63 int (*vidioc_g_fmt_vid_cap_mplane
)(struct file
*file
, void *fh
,
64 struct v4l2_format
*f
);
65 int (*vidioc_g_fmt_vid_out_mplane
)(struct file
*file
, void *fh
,
66 struct v4l2_format
*f
);
67 int (*vidioc_g_fmt_sdr_cap
) (struct file
*file
, void *fh
,
68 struct v4l2_format
*f
);
70 /* VIDIOC_S_FMT handlers */
71 int (*vidioc_s_fmt_vid_cap
) (struct file
*file
, void *fh
,
72 struct v4l2_format
*f
);
73 int (*vidioc_s_fmt_vid_overlay
)(struct file
*file
, void *fh
,
74 struct v4l2_format
*f
);
75 int (*vidioc_s_fmt_vid_out
) (struct file
*file
, void *fh
,
76 struct v4l2_format
*f
);
77 int (*vidioc_s_fmt_vid_out_overlay
)(struct file
*file
, void *fh
,
78 struct v4l2_format
*f
);
79 int (*vidioc_s_fmt_vbi_cap
) (struct file
*file
, void *fh
,
80 struct v4l2_format
*f
);
81 int (*vidioc_s_fmt_vbi_out
) (struct file
*file
, void *fh
,
82 struct v4l2_format
*f
);
83 int (*vidioc_s_fmt_sliced_vbi_cap
)(struct file
*file
, void *fh
,
84 struct v4l2_format
*f
);
85 int (*vidioc_s_fmt_sliced_vbi_out
)(struct file
*file
, void *fh
,
86 struct v4l2_format
*f
);
87 int (*vidioc_s_fmt_vid_cap_mplane
)(struct file
*file
, void *fh
,
88 struct v4l2_format
*f
);
89 int (*vidioc_s_fmt_vid_out_mplane
)(struct file
*file
, void *fh
,
90 struct v4l2_format
*f
);
91 int (*vidioc_s_fmt_sdr_cap
) (struct file
*file
, void *fh
,
92 struct v4l2_format
*f
);
94 /* VIDIOC_TRY_FMT handlers */
95 int (*vidioc_try_fmt_vid_cap
) (struct file
*file
, void *fh
,
96 struct v4l2_format
*f
);
97 int (*vidioc_try_fmt_vid_overlay
)(struct file
*file
, void *fh
,
98 struct v4l2_format
*f
);
99 int (*vidioc_try_fmt_vid_out
) (struct file
*file
, void *fh
,
100 struct v4l2_format
*f
);
101 int (*vidioc_try_fmt_vid_out_overlay
)(struct file
*file
, void *fh
,
102 struct v4l2_format
*f
);
103 int (*vidioc_try_fmt_vbi_cap
) (struct file
*file
, void *fh
,
104 struct v4l2_format
*f
);
105 int (*vidioc_try_fmt_vbi_out
) (struct file
*file
, void *fh
,
106 struct v4l2_format
*f
);
107 int (*vidioc_try_fmt_sliced_vbi_cap
)(struct file
*file
, void *fh
,
108 struct v4l2_format
*f
);
109 int (*vidioc_try_fmt_sliced_vbi_out
)(struct file
*file
, void *fh
,
110 struct v4l2_format
*f
);
111 int (*vidioc_try_fmt_vid_cap_mplane
)(struct file
*file
, void *fh
,
112 struct v4l2_format
*f
);
113 int (*vidioc_try_fmt_vid_out_mplane
)(struct file
*file
, void *fh
,
114 struct v4l2_format
*f
);
115 int (*vidioc_try_fmt_sdr_cap
) (struct file
*file
, void *fh
,
116 struct v4l2_format
*f
);
118 /* Buffer handlers */
119 int (*vidioc_reqbufs
) (struct file
*file
, void *fh
, struct v4l2_requestbuffers
*b
);
120 int (*vidioc_querybuf
)(struct file
*file
, void *fh
, struct v4l2_buffer
*b
);
121 int (*vidioc_qbuf
) (struct file
*file
, void *fh
, struct v4l2_buffer
*b
);
122 int (*vidioc_expbuf
) (struct file
*file
, void *fh
,
123 struct v4l2_exportbuffer
*e
);
124 int (*vidioc_dqbuf
) (struct file
*file
, void *fh
, struct v4l2_buffer
*b
);
126 int (*vidioc_create_bufs
)(struct file
*file
, void *fh
, struct v4l2_create_buffers
*b
);
127 int (*vidioc_prepare_buf
)(struct file
*file
, void *fh
, struct v4l2_buffer
*b
);
129 int (*vidioc_overlay
) (struct file
*file
, void *fh
, unsigned int i
);
130 int (*vidioc_g_fbuf
) (struct file
*file
, void *fh
,
131 struct v4l2_framebuffer
*a
);
132 int (*vidioc_s_fbuf
) (struct file
*file
, void *fh
,
133 const struct v4l2_framebuffer
*a
);
136 int (*vidioc_streamon
) (struct file
*file
, void *fh
, enum v4l2_buf_type i
);
137 int (*vidioc_streamoff
)(struct file
*file
, void *fh
, enum v4l2_buf_type i
);
140 ENUMSTD is handled by videodev.c
142 int (*vidioc_g_std
) (struct file
*file
, void *fh
, v4l2_std_id
*norm
);
143 int (*vidioc_s_std
) (struct file
*file
, void *fh
, v4l2_std_id norm
);
144 int (*vidioc_querystd
) (struct file
*file
, void *fh
, v4l2_std_id
*a
);
147 int (*vidioc_enum_input
)(struct file
*file
, void *fh
,
148 struct v4l2_input
*inp
);
149 int (*vidioc_g_input
) (struct file
*file
, void *fh
, unsigned int *i
);
150 int (*vidioc_s_input
) (struct file
*file
, void *fh
, unsigned int i
);
152 /* Output handling */
153 int (*vidioc_enum_output
) (struct file
*file
, void *fh
,
154 struct v4l2_output
*a
);
155 int (*vidioc_g_output
) (struct file
*file
, void *fh
, unsigned int *i
);
156 int (*vidioc_s_output
) (struct file
*file
, void *fh
, unsigned int i
);
158 /* Control handling */
159 int (*vidioc_queryctrl
) (struct file
*file
, void *fh
,
160 struct v4l2_queryctrl
*a
);
161 int (*vidioc_query_ext_ctrl
) (struct file
*file
, void *fh
,
162 struct v4l2_query_ext_ctrl
*a
);
163 int (*vidioc_g_ctrl
) (struct file
*file
, void *fh
,
164 struct v4l2_control
*a
);
165 int (*vidioc_s_ctrl
) (struct file
*file
, void *fh
,
166 struct v4l2_control
*a
);
167 int (*vidioc_g_ext_ctrls
) (struct file
*file
, void *fh
,
168 struct v4l2_ext_controls
*a
);
169 int (*vidioc_s_ext_ctrls
) (struct file
*file
, void *fh
,
170 struct v4l2_ext_controls
*a
);
171 int (*vidioc_try_ext_ctrls
) (struct file
*file
, void *fh
,
172 struct v4l2_ext_controls
*a
);
173 int (*vidioc_querymenu
) (struct file
*file
, void *fh
,
174 struct v4l2_querymenu
*a
);
177 int (*vidioc_enumaudio
) (struct file
*file
, void *fh
,
178 struct v4l2_audio
*a
);
179 int (*vidioc_g_audio
) (struct file
*file
, void *fh
,
180 struct v4l2_audio
*a
);
181 int (*vidioc_s_audio
) (struct file
*file
, void *fh
,
182 const struct v4l2_audio
*a
);
184 /* Audio out ioctls */
185 int (*vidioc_enumaudout
) (struct file
*file
, void *fh
,
186 struct v4l2_audioout
*a
);
187 int (*vidioc_g_audout
) (struct file
*file
, void *fh
,
188 struct v4l2_audioout
*a
);
189 int (*vidioc_s_audout
) (struct file
*file
, void *fh
,
190 const struct v4l2_audioout
*a
);
191 int (*vidioc_g_modulator
) (struct file
*file
, void *fh
,
192 struct v4l2_modulator
*a
);
193 int (*vidioc_s_modulator
) (struct file
*file
, void *fh
,
194 const struct v4l2_modulator
*a
);
196 int (*vidioc_cropcap
) (struct file
*file
, void *fh
,
197 struct v4l2_cropcap
*a
);
198 int (*vidioc_g_crop
) (struct file
*file
, void *fh
,
199 struct v4l2_crop
*a
);
200 int (*vidioc_s_crop
) (struct file
*file
, void *fh
,
201 const struct v4l2_crop
*a
);
202 int (*vidioc_g_selection
) (struct file
*file
, void *fh
,
203 struct v4l2_selection
*s
);
204 int (*vidioc_s_selection
) (struct file
*file
, void *fh
,
205 struct v4l2_selection
*s
);
206 /* Compression ioctls */
207 int (*vidioc_g_jpegcomp
) (struct file
*file
, void *fh
,
208 struct v4l2_jpegcompression
*a
);
209 int (*vidioc_s_jpegcomp
) (struct file
*file
, void *fh
,
210 const struct v4l2_jpegcompression
*a
);
211 int (*vidioc_g_enc_index
) (struct file
*file
, void *fh
,
212 struct v4l2_enc_idx
*a
);
213 int (*vidioc_encoder_cmd
) (struct file
*file
, void *fh
,
214 struct v4l2_encoder_cmd
*a
);
215 int (*vidioc_try_encoder_cmd
) (struct file
*file
, void *fh
,
216 struct v4l2_encoder_cmd
*a
);
217 int (*vidioc_decoder_cmd
) (struct file
*file
, void *fh
,
218 struct v4l2_decoder_cmd
*a
);
219 int (*vidioc_try_decoder_cmd
) (struct file
*file
, void *fh
,
220 struct v4l2_decoder_cmd
*a
);
222 /* Stream type-dependent parameter ioctls */
223 int (*vidioc_g_parm
) (struct file
*file
, void *fh
,
224 struct v4l2_streamparm
*a
);
225 int (*vidioc_s_parm
) (struct file
*file
, void *fh
,
226 struct v4l2_streamparm
*a
);
229 int (*vidioc_g_tuner
) (struct file
*file
, void *fh
,
230 struct v4l2_tuner
*a
);
231 int (*vidioc_s_tuner
) (struct file
*file
, void *fh
,
232 const struct v4l2_tuner
*a
);
233 int (*vidioc_g_frequency
) (struct file
*file
, void *fh
,
234 struct v4l2_frequency
*a
);
235 int (*vidioc_s_frequency
) (struct file
*file
, void *fh
,
236 const struct v4l2_frequency
*a
);
237 int (*vidioc_enum_freq_bands
) (struct file
*file
, void *fh
,
238 struct v4l2_frequency_band
*band
);
241 int (*vidioc_g_sliced_vbi_cap
) (struct file
*file
, void *fh
,
242 struct v4l2_sliced_vbi_cap
*a
);
244 /* Log status ioctl */
245 int (*vidioc_log_status
) (struct file
*file
, void *fh
);
247 int (*vidioc_s_hw_freq_seek
) (struct file
*file
, void *fh
,
248 const struct v4l2_hw_freq_seek
*a
);
250 /* Debugging ioctls */
251 #ifdef CONFIG_VIDEO_ADV_DEBUG
252 int (*vidioc_g_register
) (struct file
*file
, void *fh
,
253 struct v4l2_dbg_register
*reg
);
254 int (*vidioc_s_register
) (struct file
*file
, void *fh
,
255 const struct v4l2_dbg_register
*reg
);
257 int (*vidioc_g_chip_info
) (struct file
*file
, void *fh
,
258 struct v4l2_dbg_chip_info
*chip
);
261 int (*vidioc_enum_framesizes
) (struct file
*file
, void *fh
,
262 struct v4l2_frmsizeenum
*fsize
);
264 int (*vidioc_enum_frameintervals
) (struct file
*file
, void *fh
,
265 struct v4l2_frmivalenum
*fival
);
267 /* DV Timings IOCTLs */
268 int (*vidioc_s_dv_timings
) (struct file
*file
, void *fh
,
269 struct v4l2_dv_timings
*timings
);
270 int (*vidioc_g_dv_timings
) (struct file
*file
, void *fh
,
271 struct v4l2_dv_timings
*timings
);
272 int (*vidioc_query_dv_timings
) (struct file
*file
, void *fh
,
273 struct v4l2_dv_timings
*timings
);
274 int (*vidioc_enum_dv_timings
) (struct file
*file
, void *fh
,
275 struct v4l2_enum_dv_timings
*timings
);
276 int (*vidioc_dv_timings_cap
) (struct file
*file
, void *fh
,
277 struct v4l2_dv_timings_cap
*cap
);
278 int (*vidioc_g_edid
) (struct file
*file
, void *fh
, struct v4l2_edid
*edid
);
279 int (*vidioc_s_edid
) (struct file
*file
, void *fh
, struct v4l2_edid
*edid
);
281 int (*vidioc_subscribe_event
) (struct v4l2_fh
*fh
,
282 const struct v4l2_event_subscription
*sub
);
283 int (*vidioc_unsubscribe_event
)(struct v4l2_fh
*fh
,
284 const struct v4l2_event_subscription
*sub
);
286 /* For other private ioctls */
287 long (*vidioc_default
) (struct file
*file
, void *fh
,
288 bool valid_prio
, unsigned int cmd
, void *arg
);
292 /* v4l debugging and diagnostics */
294 /* Debug bitmask flags to be used on V4L2 */
295 #define V4L2_DEBUG_IOCTL 0x01
296 #define V4L2_DEBUG_IOCTL_ARG 0x02
298 /* Video standard functions */
299 extern const char *v4l2_norm_to_name(v4l2_std_id id
);
300 extern void v4l2_video_std_frame_period(int id
, struct v4l2_fract
*frameperiod
);
301 extern int v4l2_video_std_construct(struct v4l2_standard
*vs
,
302 int id
, const char *name
);
303 /* Prints the ioctl in a human-readable format. If prefix != NULL,
304 then do printk(KERN_DEBUG "%s: ", prefix) first. */
305 extern void v4l_printk_ioctl(const char *prefix
, unsigned int cmd
);
307 /* Internal use only: get the mutex (if any) that we need to lock for the
310 extern struct mutex
*v4l2_ioctl_get_lock(struct video_device
*vdev
, unsigned cmd
);
312 /* names for fancy debug output */
313 extern const char *v4l2_field_names
[];
314 extern const char *v4l2_type_names
[];
317 /* 32 Bits compatibility layer for 64 bits processors */
318 extern long v4l2_compat_ioctl32(struct file
*file
, unsigned int cmd
,
322 typedef long (*v4l2_kioctl
)(struct file
*file
,
323 unsigned int cmd
, void *arg
);
325 /* Include support for obsoleted stuff */
326 extern long video_usercopy(struct file
*file
, unsigned int cmd
,
327 unsigned long arg
, v4l2_kioctl func
);
329 /* Standard handlers for V4L ioctl's */
330 extern long video_ioctl2(struct file
*file
,
331 unsigned int cmd
, unsigned long arg
);
333 #endif /* _V4L2_IOCTL_H */
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