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1/*
2 *
3 * V 4 L 2 D R I V E R H E L P E R A P I
4 *
5 * Moved from videodev2.h
6 *
7 * Some commonly needed functions for drivers (v4l2-common.o module)
8 */
9#ifndef _V4L2_IOCTL_H
10#define _V4L2_IOCTL_H
11
12#include <linux/poll.h>
13#include <linux/fs.h>
14#include <linux/mutex.h>
15#include <linux/compiler.h> /* need __user */
16#include <linux/videodev2.h>
17
18struct v4l2_fh;
19
20struct v4l2_ioctl_ops {
21 /* ioctl callbacks */
22
23 /* VIDIOC_QUERYCAP handler */
24 int (*vidioc_querycap)(struct file *file, void *fh, struct v4l2_capability *cap);
25
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);
31
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);
45
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);
69
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);
93
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);
117
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);
125
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);
128
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);
134
135 /* Stream on/off */
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);
138
139 /* Standard handling
140 ENUMSTD is handled by videodev.c
141 */
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);
145
146 /* Input handling */
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);
151
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);
157
158 /* Control handling */
159 int (*vidioc_queryctrl) (struct file *file, void *fh,
160 struct v4l2_queryctrl *a);
161 int (*vidioc_g_ctrl) (struct file *file, void *fh,
162 struct v4l2_control *a);
163 int (*vidioc_s_ctrl) (struct file *file, void *fh,
164 struct v4l2_control *a);
165 int (*vidioc_g_ext_ctrls) (struct file *file, void *fh,
166 struct v4l2_ext_controls *a);
167 int (*vidioc_s_ext_ctrls) (struct file *file, void *fh,
168 struct v4l2_ext_controls *a);
169 int (*vidioc_try_ext_ctrls) (struct file *file, void *fh,
170 struct v4l2_ext_controls *a);
171 int (*vidioc_querymenu) (struct file *file, void *fh,
172 struct v4l2_querymenu *a);
173
174 /* Audio ioctls */
175 int (*vidioc_enumaudio) (struct file *file, void *fh,
176 struct v4l2_audio *a);
177 int (*vidioc_g_audio) (struct file *file, void *fh,
178 struct v4l2_audio *a);
179 int (*vidioc_s_audio) (struct file *file, void *fh,
180 const struct v4l2_audio *a);
181
182 /* Audio out ioctls */
183 int (*vidioc_enumaudout) (struct file *file, void *fh,
184 struct v4l2_audioout *a);
185 int (*vidioc_g_audout) (struct file *file, void *fh,
186 struct v4l2_audioout *a);
187 int (*vidioc_s_audout) (struct file *file, void *fh,
188 const struct v4l2_audioout *a);
189 int (*vidioc_g_modulator) (struct file *file, void *fh,
190 struct v4l2_modulator *a);
191 int (*vidioc_s_modulator) (struct file *file, void *fh,
192 const struct v4l2_modulator *a);
193 /* Crop ioctls */
194 int (*vidioc_cropcap) (struct file *file, void *fh,
195 struct v4l2_cropcap *a);
196 int (*vidioc_g_crop) (struct file *file, void *fh,
197 struct v4l2_crop *a);
198 int (*vidioc_s_crop) (struct file *file, void *fh,
199 const struct v4l2_crop *a);
200 int (*vidioc_g_selection) (struct file *file, void *fh,
201 struct v4l2_selection *s);
202 int (*vidioc_s_selection) (struct file *file, void *fh,
203 struct v4l2_selection *s);
204 /* Compression ioctls */
205 int (*vidioc_g_jpegcomp) (struct file *file, void *fh,
206 struct v4l2_jpegcompression *a);
207 int (*vidioc_s_jpegcomp) (struct file *file, void *fh,
208 const struct v4l2_jpegcompression *a);
209 int (*vidioc_g_enc_index) (struct file *file, void *fh,
210 struct v4l2_enc_idx *a);
211 int (*vidioc_encoder_cmd) (struct file *file, void *fh,
212 struct v4l2_encoder_cmd *a);
213 int (*vidioc_try_encoder_cmd) (struct file *file, void *fh,
214 struct v4l2_encoder_cmd *a);
215 int (*vidioc_decoder_cmd) (struct file *file, void *fh,
216 struct v4l2_decoder_cmd *a);
217 int (*vidioc_try_decoder_cmd) (struct file *file, void *fh,
218 struct v4l2_decoder_cmd *a);
219
220 /* Stream type-dependent parameter ioctls */
221 int (*vidioc_g_parm) (struct file *file, void *fh,
222 struct v4l2_streamparm *a);
223 int (*vidioc_s_parm) (struct file *file, void *fh,
224 struct v4l2_streamparm *a);
225
226 /* Tuner ioctls */
227 int (*vidioc_g_tuner) (struct file *file, void *fh,
228 struct v4l2_tuner *a);
229 int (*vidioc_s_tuner) (struct file *file, void *fh,
230 const struct v4l2_tuner *a);
231 int (*vidioc_g_frequency) (struct file *file, void *fh,
232 struct v4l2_frequency *a);
233 int (*vidioc_s_frequency) (struct file *file, void *fh,
234 const struct v4l2_frequency *a);
235 int (*vidioc_enum_freq_bands) (struct file *file, void *fh,
236 struct v4l2_frequency_band *band);
237
238 /* Sliced VBI cap */
239 int (*vidioc_g_sliced_vbi_cap) (struct file *file, void *fh,
240 struct v4l2_sliced_vbi_cap *a);
241
242 /* Log status ioctl */
243 int (*vidioc_log_status) (struct file *file, void *fh);
244
245 int (*vidioc_s_hw_freq_seek) (struct file *file, void *fh,
246 const struct v4l2_hw_freq_seek *a);
247
248 /* Debugging ioctls */
249#ifdef CONFIG_VIDEO_ADV_DEBUG
250 int (*vidioc_g_register) (struct file *file, void *fh,
251 struct v4l2_dbg_register *reg);
252 int (*vidioc_s_register) (struct file *file, void *fh,
253 const struct v4l2_dbg_register *reg);
254
255 int (*vidioc_g_chip_info) (struct file *file, void *fh,
256 struct v4l2_dbg_chip_info *chip);
257#endif
258
259 int (*vidioc_enum_framesizes) (struct file *file, void *fh,
260 struct v4l2_frmsizeenum *fsize);
261
262 int (*vidioc_enum_frameintervals) (struct file *file, void *fh,
263 struct v4l2_frmivalenum *fival);
264
265 /* DV Timings IOCTLs */
266 int (*vidioc_s_dv_timings) (struct file *file, void *fh,
267 struct v4l2_dv_timings *timings);
268 int (*vidioc_g_dv_timings) (struct file *file, void *fh,
269 struct v4l2_dv_timings *timings);
270 int (*vidioc_query_dv_timings) (struct file *file, void *fh,
271 struct v4l2_dv_timings *timings);
272 int (*vidioc_enum_dv_timings) (struct file *file, void *fh,
273 struct v4l2_enum_dv_timings *timings);
274 int (*vidioc_dv_timings_cap) (struct file *file, void *fh,
275 struct v4l2_dv_timings_cap *cap);
276 int (*vidioc_g_edid) (struct file *file, void *fh, struct v4l2_edid *edid);
277 int (*vidioc_s_edid) (struct file *file, void *fh, struct v4l2_edid *edid);
278
279 int (*vidioc_subscribe_event) (struct v4l2_fh *fh,
280 const struct v4l2_event_subscription *sub);
281 int (*vidioc_unsubscribe_event)(struct v4l2_fh *fh,
282 const struct v4l2_event_subscription *sub);
283
284 /* For other private ioctls */
285 long (*vidioc_default) (struct file *file, void *fh,
286 bool valid_prio, unsigned int cmd, void *arg);
287};
288
289
290/* v4l debugging and diagnostics */
291
292/* Debug bitmask flags to be used on V4L2 */
293#define V4L2_DEBUG_IOCTL 0x01
294#define V4L2_DEBUG_IOCTL_ARG 0x02
295
296/* Video standard functions */
297extern const char *v4l2_norm_to_name(v4l2_std_id id);
298extern void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod);
299extern int v4l2_video_std_construct(struct v4l2_standard *vs,
300 int id, const char *name);
301/* Prints the ioctl in a human-readable format. If prefix != NULL,
302 then do printk(KERN_DEBUG "%s: ", prefix) first. */
303extern void v4l_printk_ioctl(const char *prefix, unsigned int cmd);
304
305/* Internal use only: get the mutex (if any) that we need to lock for the
306 given command. */
307struct video_device;
308extern struct mutex *v4l2_ioctl_get_lock(struct video_device *vdev, unsigned cmd);
309
310/* names for fancy debug output */
311extern const char *v4l2_field_names[];
312extern const char *v4l2_type_names[];
313
314#ifdef CONFIG_COMPAT
315/* 32 Bits compatibility layer for 64 bits processors */
316extern long v4l2_compat_ioctl32(struct file *file, unsigned int cmd,
317 unsigned long arg);
318#endif
319
320typedef long (*v4l2_kioctl)(struct file *file,
321 unsigned int cmd, void *arg);
322
323/* Include support for obsoleted stuff */
324extern long video_usercopy(struct file *file, unsigned int cmd,
325 unsigned long arg, v4l2_kioctl func);
326
327/* Standard handlers for V4L ioctl's */
328extern long video_ioctl2(struct file *file,
329 unsigned int cmd, unsigned long arg);
330
331#endif /* _V4L2_IOCTL_H */
1/*
2 *
3 * V 4 L 2 D R I V E R H E L P E R A P I
4 *
5 * Moved from videodev2.h
6 *
7 * Some commonly needed functions for drivers (v4l2-common.o module)
8 */
9#ifndef _V4L2_IOCTL_H
10#define _V4L2_IOCTL_H
11
12#include <linux/poll.h>
13#include <linux/fs.h>
14#include <linux/mutex.h>
15#include <linux/compiler.h> /* need __user */
16#include <linux/videodev2.h>
17
18struct v4l2_fh;
19
20struct v4l2_ioctl_ops {
21 /* ioctl callbacks */
22
23 /* VIDIOC_QUERYCAP handler */
24 int (*vidioc_querycap)(struct file *file, void *fh, struct v4l2_capability *cap);
25
26 /* VIDIOC_ENUM_FMT handlers */
27 int (*vidioc_enum_fmt_vid_cap) (struct file *file, void *fh,
28 struct v4l2_fmtdesc *f);
29 int (*vidioc_enum_fmt_vid_overlay) (struct file *file, void *fh,
30 struct v4l2_fmtdesc *f);
31 int (*vidioc_enum_fmt_vid_out) (struct file *file, void *fh,
32 struct v4l2_fmtdesc *f);
33 int (*vidioc_enum_fmt_vid_cap_mplane)(struct file *file, void *fh,
34 struct v4l2_fmtdesc *f);
35 int (*vidioc_enum_fmt_vid_out_mplane)(struct file *file, void *fh,
36 struct v4l2_fmtdesc *f);
37 int (*vidioc_enum_fmt_sdr_cap) (struct file *file, void *fh,
38 struct v4l2_fmtdesc *f);
39 int (*vidioc_enum_fmt_sdr_out) (struct file *file, void *fh,
40 struct v4l2_fmtdesc *f);
41
42 /* VIDIOC_G_FMT handlers */
43 int (*vidioc_g_fmt_vid_cap) (struct file *file, void *fh,
44 struct v4l2_format *f);
45 int (*vidioc_g_fmt_vid_overlay)(struct file *file, void *fh,
46 struct v4l2_format *f);
47 int (*vidioc_g_fmt_vid_out) (struct file *file, void *fh,
48 struct v4l2_format *f);
49 int (*vidioc_g_fmt_vid_out_overlay)(struct file *file, void *fh,
50 struct v4l2_format *f);
51 int (*vidioc_g_fmt_vbi_cap) (struct file *file, void *fh,
52 struct v4l2_format *f);
53 int (*vidioc_g_fmt_vbi_out) (struct file *file, void *fh,
54 struct v4l2_format *f);
55 int (*vidioc_g_fmt_sliced_vbi_cap)(struct file *file, void *fh,
56 struct v4l2_format *f);
57 int (*vidioc_g_fmt_sliced_vbi_out)(struct file *file, void *fh,
58 struct v4l2_format *f);
59 int (*vidioc_g_fmt_vid_cap_mplane)(struct file *file, void *fh,
60 struct v4l2_format *f);
61 int (*vidioc_g_fmt_vid_out_mplane)(struct file *file, void *fh,
62 struct v4l2_format *f);
63 int (*vidioc_g_fmt_sdr_cap) (struct file *file, void *fh,
64 struct v4l2_format *f);
65 int (*vidioc_g_fmt_sdr_out) (struct file *file, void *fh,
66 struct v4l2_format *f);
67
68 /* VIDIOC_S_FMT handlers */
69 int (*vidioc_s_fmt_vid_cap) (struct file *file, void *fh,
70 struct v4l2_format *f);
71 int (*vidioc_s_fmt_vid_overlay)(struct file *file, void *fh,
72 struct v4l2_format *f);
73 int (*vidioc_s_fmt_vid_out) (struct file *file, void *fh,
74 struct v4l2_format *f);
75 int (*vidioc_s_fmt_vid_out_overlay)(struct file *file, void *fh,
76 struct v4l2_format *f);
77 int (*vidioc_s_fmt_vbi_cap) (struct file *file, void *fh,
78 struct v4l2_format *f);
79 int (*vidioc_s_fmt_vbi_out) (struct file *file, void *fh,
80 struct v4l2_format *f);
81 int (*vidioc_s_fmt_sliced_vbi_cap)(struct file *file, void *fh,
82 struct v4l2_format *f);
83 int (*vidioc_s_fmt_sliced_vbi_out)(struct file *file, void *fh,
84 struct v4l2_format *f);
85 int (*vidioc_s_fmt_vid_cap_mplane)(struct file *file, void *fh,
86 struct v4l2_format *f);
87 int (*vidioc_s_fmt_vid_out_mplane)(struct file *file, void *fh,
88 struct v4l2_format *f);
89 int (*vidioc_s_fmt_sdr_cap) (struct file *file, void *fh,
90 struct v4l2_format *f);
91 int (*vidioc_s_fmt_sdr_out) (struct file *file, void *fh,
92 struct v4l2_format *f);
93
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);
117 int (*vidioc_try_fmt_sdr_out) (struct file *file, void *fh,
118 struct v4l2_format *f);
119
120 /* Buffer handlers */
121 int (*vidioc_reqbufs) (struct file *file, void *fh, struct v4l2_requestbuffers *b);
122 int (*vidioc_querybuf)(struct file *file, void *fh, struct v4l2_buffer *b);
123 int (*vidioc_qbuf) (struct file *file, void *fh, struct v4l2_buffer *b);
124 int (*vidioc_expbuf) (struct file *file, void *fh,
125 struct v4l2_exportbuffer *e);
126 int (*vidioc_dqbuf) (struct file *file, void *fh, struct v4l2_buffer *b);
127
128 int (*vidioc_create_bufs)(struct file *file, void *fh, struct v4l2_create_buffers *b);
129 int (*vidioc_prepare_buf)(struct file *file, void *fh, struct v4l2_buffer *b);
130
131 int (*vidioc_overlay) (struct file *file, void *fh, unsigned int i);
132 int (*vidioc_g_fbuf) (struct file *file, void *fh,
133 struct v4l2_framebuffer *a);
134 int (*vidioc_s_fbuf) (struct file *file, void *fh,
135 const struct v4l2_framebuffer *a);
136
137 /* Stream on/off */
138 int (*vidioc_streamon) (struct file *file, void *fh, enum v4l2_buf_type i);
139 int (*vidioc_streamoff)(struct file *file, void *fh, enum v4l2_buf_type i);
140
141 /* Standard handling
142 ENUMSTD is handled by videodev.c
143 */
144 int (*vidioc_g_std) (struct file *file, void *fh, v4l2_std_id *norm);
145 int (*vidioc_s_std) (struct file *file, void *fh, v4l2_std_id norm);
146 int (*vidioc_querystd) (struct file *file, void *fh, v4l2_std_id *a);
147
148 /* Input handling */
149 int (*vidioc_enum_input)(struct file *file, void *fh,
150 struct v4l2_input *inp);
151 int (*vidioc_g_input) (struct file *file, void *fh, unsigned int *i);
152 int (*vidioc_s_input) (struct file *file, void *fh, unsigned int i);
153
154 /* Output handling */
155 int (*vidioc_enum_output) (struct file *file, void *fh,
156 struct v4l2_output *a);
157 int (*vidioc_g_output) (struct file *file, void *fh, unsigned int *i);
158 int (*vidioc_s_output) (struct file *file, void *fh, unsigned int i);
159
160 /* Control handling */
161 int (*vidioc_queryctrl) (struct file *file, void *fh,
162 struct v4l2_queryctrl *a);
163 int (*vidioc_query_ext_ctrl) (struct file *file, void *fh,
164 struct v4l2_query_ext_ctrl *a);
165 int (*vidioc_g_ctrl) (struct file *file, void *fh,
166 struct v4l2_control *a);
167 int (*vidioc_s_ctrl) (struct file *file, void *fh,
168 struct v4l2_control *a);
169 int (*vidioc_g_ext_ctrls) (struct file *file, void *fh,
170 struct v4l2_ext_controls *a);
171 int (*vidioc_s_ext_ctrls) (struct file *file, void *fh,
172 struct v4l2_ext_controls *a);
173 int (*vidioc_try_ext_ctrls) (struct file *file, void *fh,
174 struct v4l2_ext_controls *a);
175 int (*vidioc_querymenu) (struct file *file, void *fh,
176 struct v4l2_querymenu *a);
177
178 /* Audio ioctls */
179 int (*vidioc_enumaudio) (struct file *file, void *fh,
180 struct v4l2_audio *a);
181 int (*vidioc_g_audio) (struct file *file, void *fh,
182 struct v4l2_audio *a);
183 int (*vidioc_s_audio) (struct file *file, void *fh,
184 const struct v4l2_audio *a);
185
186 /* Audio out ioctls */
187 int (*vidioc_enumaudout) (struct file *file, void *fh,
188 struct v4l2_audioout *a);
189 int (*vidioc_g_audout) (struct file *file, void *fh,
190 struct v4l2_audioout *a);
191 int (*vidioc_s_audout) (struct file *file, void *fh,
192 const struct v4l2_audioout *a);
193 int (*vidioc_g_modulator) (struct file *file, void *fh,
194 struct v4l2_modulator *a);
195 int (*vidioc_s_modulator) (struct file *file, void *fh,
196 const struct v4l2_modulator *a);
197 /* Crop ioctls */
198 int (*vidioc_cropcap) (struct file *file, void *fh,
199 struct v4l2_cropcap *a);
200 int (*vidioc_g_crop) (struct file *file, void *fh,
201 struct v4l2_crop *a);
202 int (*vidioc_s_crop) (struct file *file, void *fh,
203 const struct v4l2_crop *a);
204 int (*vidioc_g_selection) (struct file *file, void *fh,
205 struct v4l2_selection *s);
206 int (*vidioc_s_selection) (struct file *file, void *fh,
207 struct v4l2_selection *s);
208 /* Compression ioctls */
209 int (*vidioc_g_jpegcomp) (struct file *file, void *fh,
210 struct v4l2_jpegcompression *a);
211 int (*vidioc_s_jpegcomp) (struct file *file, void *fh,
212 const struct v4l2_jpegcompression *a);
213 int (*vidioc_g_enc_index) (struct file *file, void *fh,
214 struct v4l2_enc_idx *a);
215 int (*vidioc_encoder_cmd) (struct file *file, void *fh,
216 struct v4l2_encoder_cmd *a);
217 int (*vidioc_try_encoder_cmd) (struct file *file, void *fh,
218 struct v4l2_encoder_cmd *a);
219 int (*vidioc_decoder_cmd) (struct file *file, void *fh,
220 struct v4l2_decoder_cmd *a);
221 int (*vidioc_try_decoder_cmd) (struct file *file, void *fh,
222 struct v4l2_decoder_cmd *a);
223
224 /* Stream type-dependent parameter ioctls */
225 int (*vidioc_g_parm) (struct file *file, void *fh,
226 struct v4l2_streamparm *a);
227 int (*vidioc_s_parm) (struct file *file, void *fh,
228 struct v4l2_streamparm *a);
229
230 /* Tuner ioctls */
231 int (*vidioc_g_tuner) (struct file *file, void *fh,
232 struct v4l2_tuner *a);
233 int (*vidioc_s_tuner) (struct file *file, void *fh,
234 const struct v4l2_tuner *a);
235 int (*vidioc_g_frequency) (struct file *file, void *fh,
236 struct v4l2_frequency *a);
237 int (*vidioc_s_frequency) (struct file *file, void *fh,
238 const struct v4l2_frequency *a);
239 int (*vidioc_enum_freq_bands) (struct file *file, void *fh,
240 struct v4l2_frequency_band *band);
241
242 /* Sliced VBI cap */
243 int (*vidioc_g_sliced_vbi_cap) (struct file *file, void *fh,
244 struct v4l2_sliced_vbi_cap *a);
245
246 /* Log status ioctl */
247 int (*vidioc_log_status) (struct file *file, void *fh);
248
249 int (*vidioc_s_hw_freq_seek) (struct file *file, void *fh,
250 const struct v4l2_hw_freq_seek *a);
251
252 /* Debugging ioctls */
253#ifdef CONFIG_VIDEO_ADV_DEBUG
254 int (*vidioc_g_register) (struct file *file, void *fh,
255 struct v4l2_dbg_register *reg);
256 int (*vidioc_s_register) (struct file *file, void *fh,
257 const struct v4l2_dbg_register *reg);
258
259 int (*vidioc_g_chip_info) (struct file *file, void *fh,
260 struct v4l2_dbg_chip_info *chip);
261#endif
262
263 int (*vidioc_enum_framesizes) (struct file *file, void *fh,
264 struct v4l2_frmsizeenum *fsize);
265
266 int (*vidioc_enum_frameintervals) (struct file *file, void *fh,
267 struct v4l2_frmivalenum *fival);
268
269 /* DV Timings IOCTLs */
270 int (*vidioc_s_dv_timings) (struct file *file, void *fh,
271 struct v4l2_dv_timings *timings);
272 int (*vidioc_g_dv_timings) (struct file *file, void *fh,
273 struct v4l2_dv_timings *timings);
274 int (*vidioc_query_dv_timings) (struct file *file, void *fh,
275 struct v4l2_dv_timings *timings);
276 int (*vidioc_enum_dv_timings) (struct file *file, void *fh,
277 struct v4l2_enum_dv_timings *timings);
278 int (*vidioc_dv_timings_cap) (struct file *file, void *fh,
279 struct v4l2_dv_timings_cap *cap);
280 int (*vidioc_g_edid) (struct file *file, void *fh, struct v4l2_edid *edid);
281 int (*vidioc_s_edid) (struct file *file, void *fh, struct v4l2_edid *edid);
282
283 int (*vidioc_subscribe_event) (struct v4l2_fh *fh,
284 const struct v4l2_event_subscription *sub);
285 int (*vidioc_unsubscribe_event)(struct v4l2_fh *fh,
286 const struct v4l2_event_subscription *sub);
287
288 /* For other private ioctls */
289 long (*vidioc_default) (struct file *file, void *fh,
290 bool valid_prio, unsigned int cmd, void *arg);
291};
292
293
294/* v4l debugging and diagnostics */
295
296/* Device debug flags to be used with the video device debug attribute */
297
298/* Just log the ioctl name + error code */
299#define V4L2_DEV_DEBUG_IOCTL 0x01
300/* Log the ioctl name arguments + error code */
301#define V4L2_DEV_DEBUG_IOCTL_ARG 0x02
302/* Log the file operations open, release, mmap and get_unmapped_area */
303#define V4L2_DEV_DEBUG_FOP 0x04
304/* Log the read and write file operations and the VIDIOC_(D)QBUF ioctls */
305#define V4L2_DEV_DEBUG_STREAMING 0x08
306/* Log poll() */
307#define V4L2_DEV_DEBUG_POLL 0x10
308
309/* Video standard functions */
310extern const char *v4l2_norm_to_name(v4l2_std_id id);
311extern void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod);
312extern int v4l2_video_std_construct(struct v4l2_standard *vs,
313 int id, const char *name);
314/* Prints the ioctl in a human-readable format. If prefix != NULL,
315 then do printk(KERN_DEBUG "%s: ", prefix) first. */
316extern void v4l_printk_ioctl(const char *prefix, unsigned int cmd);
317
318/* Internal use only: get the mutex (if any) that we need to lock for the
319 given command. */
320struct video_device;
321extern struct mutex *v4l2_ioctl_get_lock(struct video_device *vdev, unsigned cmd);
322
323/* names for fancy debug output */
324extern const char *v4l2_field_names[];
325extern const char *v4l2_type_names[];
326
327#ifdef CONFIG_COMPAT
328/* 32 Bits compatibility layer for 64 bits processors */
329extern long v4l2_compat_ioctl32(struct file *file, unsigned int cmd,
330 unsigned long arg);
331#endif
332
333typedef long (*v4l2_kioctl)(struct file *file,
334 unsigned int cmd, void *arg);
335
336/* Include support for obsoleted stuff */
337extern long video_usercopy(struct file *file, unsigned int cmd,
338 unsigned long arg, v4l2_kioctl func);
339
340/* Standard handlers for V4L ioctl's */
341extern long video_ioctl2(struct file *file,
342 unsigned int cmd, unsigned long arg);
343
344#endif /* _V4L2_IOCTL_H */