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-rw-r--r--include/media/v4l2-ioctl.h301
1 files changed, 301 insertions, 0 deletions
diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h
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+++ b/include/media/v4l2-ioctl.h
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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/device.h>
15#include <linux/mutex.h>
16#include <linux/compiler.h> /* need __user */
17#ifdef CONFIG_VIDEO_V4L1_COMPAT
18#include <linux/videodev.h>
19#else
20#include <linux/videodev2.h>
21#endif
22
23struct v4l2_ioctl_ops {
24 /* ioctl callbacks */
25
26 /* VIDIOC_QUERYCAP handler */
27 int (*vidioc_querycap)(struct file *file, void *fh, struct v4l2_capability *cap);
28
29 /* Priority handling */
30 int (*vidioc_g_priority) (struct file *file, void *fh,
31 enum v4l2_priority *p);
32 int (*vidioc_s_priority) (struct file *file, void *fh,
33 enum v4l2_priority p);
34
35 /* VIDIOC_ENUM_FMT handlers */
36 int (*vidioc_enum_fmt_vid_cap) (struct file *file, void *fh,
37 struct v4l2_fmtdesc *f);
38 int (*vidioc_enum_fmt_vid_overlay) (struct file *file, void *fh,
39 struct v4l2_fmtdesc *f);
40 int (*vidioc_enum_fmt_vid_out) (struct file *file, void *fh,
41 struct v4l2_fmtdesc *f);
42#if 1
43 /* deprecated, will be removed in 2.6.28 */
44 int (*vidioc_enum_fmt_vbi_cap) (struct file *file, void *fh,
45 struct v4l2_fmtdesc *f);
46#endif
47 int (*vidioc_enum_fmt_type_private)(struct file *file, void *fh,
48 struct v4l2_fmtdesc *f);
49
50 /* VIDIOC_G_FMT handlers */
51 int (*vidioc_g_fmt_vid_cap) (struct file *file, void *fh,
52 struct v4l2_format *f);
53 int (*vidioc_g_fmt_vid_overlay)(struct file *file, void *fh,
54 struct v4l2_format *f);
55 int (*vidioc_g_fmt_vid_out) (struct file *file, void *fh,
56 struct v4l2_format *f);
57 int (*vidioc_g_fmt_vid_out_overlay)(struct file *file, void *fh,
58 struct v4l2_format *f);
59 int (*vidioc_g_fmt_vbi_cap) (struct file *file, void *fh,
60 struct v4l2_format *f);
61 int (*vidioc_g_fmt_vbi_out) (struct file *file, void *fh,
62 struct v4l2_format *f);
63 int (*vidioc_g_fmt_sliced_vbi_cap)(struct file *file, void *fh,
64 struct v4l2_format *f);
65 int (*vidioc_g_fmt_sliced_vbi_out)(struct file *file, void *fh,
66 struct v4l2_format *f);
67 int (*vidioc_g_fmt_type_private)(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_type_private)(struct file *file, void *fh,
88 struct v4l2_format *f);
89
90 /* VIDIOC_TRY_FMT handlers */
91 int (*vidioc_try_fmt_vid_cap) (struct file *file, void *fh,
92 struct v4l2_format *f);
93 int (*vidioc_try_fmt_vid_overlay)(struct file *file, void *fh,
94 struct v4l2_format *f);
95 int (*vidioc_try_fmt_vid_out) (struct file *file, void *fh,
96 struct v4l2_format *f);
97 int (*vidioc_try_fmt_vid_out_overlay)(struct file *file, void *fh,
98 struct v4l2_format *f);
99 int (*vidioc_try_fmt_vbi_cap) (struct file *file, void *fh,
100 struct v4l2_format *f);
101 int (*vidioc_try_fmt_vbi_out) (struct file *file, void *fh,
102 struct v4l2_format *f);
103 int (*vidioc_try_fmt_sliced_vbi_cap)(struct file *file, void *fh,
104 struct v4l2_format *f);
105 int (*vidioc_try_fmt_sliced_vbi_out)(struct file *file, void *fh,
106 struct v4l2_format *f);
107 int (*vidioc_try_fmt_type_private)(struct file *file, void *fh,
108 struct v4l2_format *f);
109
110 /* Buffer handlers */
111 int (*vidioc_reqbufs) (struct file *file, void *fh, struct v4l2_requestbuffers *b);
112 int (*vidioc_querybuf)(struct file *file, void *fh, struct v4l2_buffer *b);
113 int (*vidioc_qbuf) (struct file *file, void *fh, struct v4l2_buffer *b);
114 int (*vidioc_dqbuf) (struct file *file, void *fh, struct v4l2_buffer *b);
115
116
117 int (*vidioc_overlay) (struct file *file, void *fh, unsigned int i);
118#ifdef CONFIG_VIDEO_V4L1_COMPAT
119 /* buffer type is struct vidio_mbuf * */
120 int (*vidiocgmbuf) (struct file *file, void *fh, struct video_mbuf *p);
121#endif
122 int (*vidioc_g_fbuf) (struct file *file, void *fh,
123 struct v4l2_framebuffer *a);
124 int (*vidioc_s_fbuf) (struct file *file, void *fh,
125 struct v4l2_framebuffer *a);
126
127 /* Stream on/off */
128 int (*vidioc_streamon) (struct file *file, void *fh, enum v4l2_buf_type i);
129 int (*vidioc_streamoff)(struct file *file, void *fh, enum v4l2_buf_type i);
130
131 /* Standard handling
132 ENUMSTD is handled by videodev.c
133 */
134 int (*vidioc_g_std) (struct file *file, void *fh, v4l2_std_id *norm);
135 int (*vidioc_s_std) (struct file *file, void *fh, v4l2_std_id *norm);
136 int (*vidioc_querystd) (struct file *file, void *fh, v4l2_std_id *a);
137
138 /* Input handling */
139 int (*vidioc_enum_input)(struct file *file, void *fh,
140 struct v4l2_input *inp);
141 int (*vidioc_g_input) (struct file *file, void *fh, unsigned int *i);
142 int (*vidioc_s_input) (struct file *file, void *fh, unsigned int i);
143
144 /* Output handling */
145 int (*vidioc_enum_output) (struct file *file, void *fh,
146 struct v4l2_output *a);
147 int (*vidioc_g_output) (struct file *file, void *fh, unsigned int *i);
148 int (*vidioc_s_output) (struct file *file, void *fh, unsigned int i);
149
150 /* Control handling */
151 int (*vidioc_queryctrl) (struct file *file, void *fh,
152 struct v4l2_queryctrl *a);
153 int (*vidioc_g_ctrl) (struct file *file, void *fh,
154 struct v4l2_control *a);
155 int (*vidioc_s_ctrl) (struct file *file, void *fh,
156 struct v4l2_control *a);
157 int (*vidioc_g_ext_ctrls) (struct file *file, void *fh,
158 struct v4l2_ext_controls *a);
159 int (*vidioc_s_ext_ctrls) (struct file *file, void *fh,
160 struct v4l2_ext_controls *a);
161 int (*vidioc_try_ext_ctrls) (struct file *file, void *fh,
162 struct v4l2_ext_controls *a);
163 int (*vidioc_querymenu) (struct file *file, void *fh,
164 struct v4l2_querymenu *a);
165
166 /* Audio ioctls */
167 int (*vidioc_enumaudio) (struct file *file, void *fh,
168 struct v4l2_audio *a);
169 int (*vidioc_g_audio) (struct file *file, void *fh,
170 struct v4l2_audio *a);
171 int (*vidioc_s_audio) (struct file *file, void *fh,
172 struct v4l2_audio *a);
173
174 /* Audio out ioctls */
175 int (*vidioc_enumaudout) (struct file *file, void *fh,
176 struct v4l2_audioout *a);
177 int (*vidioc_g_audout) (struct file *file, void *fh,
178 struct v4l2_audioout *a);
179 int (*vidioc_s_audout) (struct file *file, void *fh,
180 struct v4l2_audioout *a);
181 int (*vidioc_g_modulator) (struct file *file, void *fh,
182 struct v4l2_modulator *a);
183 int (*vidioc_s_modulator) (struct file *file, void *fh,
184 struct v4l2_modulator *a);
185 /* Crop ioctls */
186 int (*vidioc_cropcap) (struct file *file, void *fh,
187 struct v4l2_cropcap *a);
188 int (*vidioc_g_crop) (struct file *file, void *fh,
189 struct v4l2_crop *a);
190 int (*vidioc_s_crop) (struct file *file, void *fh,
191 struct v4l2_crop *a);
192 /* Compression ioctls */
193 int (*vidioc_g_jpegcomp) (struct file *file, void *fh,
194 struct v4l2_jpegcompression *a);
195 int (*vidioc_s_jpegcomp) (struct file *file, void *fh,
196 struct v4l2_jpegcompression *a);
197 int (*vidioc_g_enc_index) (struct file *file, void *fh,
198 struct v4l2_enc_idx *a);
199 int (*vidioc_encoder_cmd) (struct file *file, void *fh,
200 struct v4l2_encoder_cmd *a);
201 int (*vidioc_try_encoder_cmd) (struct file *file, void *fh,
202 struct v4l2_encoder_cmd *a);
203
204 /* Stream type-dependent parameter ioctls */
205 int (*vidioc_g_parm) (struct file *file, void *fh,
206 struct v4l2_streamparm *a);
207 int (*vidioc_s_parm) (struct file *file, void *fh,
208 struct v4l2_streamparm *a);
209
210 /* Tuner ioctls */
211 int (*vidioc_g_tuner) (struct file *file, void *fh,
212 struct v4l2_tuner *a);
213 int (*vidioc_s_tuner) (struct file *file, void *fh,
214 struct v4l2_tuner *a);
215 int (*vidioc_g_frequency) (struct file *file, void *fh,
216 struct v4l2_frequency *a);
217 int (*vidioc_s_frequency) (struct file *file, void *fh,
218 struct v4l2_frequency *a);
219
220 /* Sliced VBI cap */
221 int (*vidioc_g_sliced_vbi_cap) (struct file *file, void *fh,
222 struct v4l2_sliced_vbi_cap *a);
223
224 /* Log status ioctl */
225 int (*vidioc_log_status) (struct file *file, void *fh);
226
227 int (*vidioc_s_hw_freq_seek) (struct file *file, void *fh,
228 struct v4l2_hw_freq_seek *a);
229
230 /* Debugging ioctls */
231#ifdef CONFIG_VIDEO_ADV_DEBUG
232 int (*vidioc_g_register) (struct file *file, void *fh,
233 struct v4l2_register *reg);
234 int (*vidioc_s_register) (struct file *file, void *fh,
235 struct v4l2_register *reg);
236#endif
237 int (*vidioc_g_chip_ident) (struct file *file, void *fh,
238 struct v4l2_chip_ident *chip);
239
240 /* For other private ioctls */
241 int (*vidioc_default) (struct file *file, void *fh,
242 int cmd, void *arg);
243};
244
245
246/* v4l debugging and diagnostics */
247
248/* Debug bitmask flags to be used on V4L2 */
249#define V4L2_DEBUG_IOCTL 0x01
250#define V4L2_DEBUG_IOCTL_ARG 0x02
251
252/* Use this macro for non-I2C drivers. Pass the driver name as the first arg. */
253#define v4l_print_ioctl(name, cmd) \
254 do { \
255 printk(KERN_DEBUG "%s: ", name); \
256 v4l_printk_ioctl(cmd); \
257 } while (0)
258
259/* Use this macro in I2C drivers where 'client' is the struct i2c_client
260 pointer */
261#define v4l_i2c_print_ioctl(client, cmd) \
262 do { \
263 v4l_client_printk(KERN_DEBUG, client, ""); \
264 v4l_printk_ioctl(cmd); \
265 } while (0)
266
267/* Video standard functions */
268extern const char *v4l2_norm_to_name(v4l2_std_id id);
269extern int v4l2_video_std_construct(struct v4l2_standard *vs,
270 int id, const char *name);
271/* Prints the ioctl in a human-readable format */
272extern void v4l_printk_ioctl(unsigned int cmd);
273
274/* names for fancy debug output */
275extern const char *v4l2_field_names[];
276extern const char *v4l2_type_names[];
277
278/* Compatibility layer interface -- v4l1-compat module */
279typedef int (*v4l2_kioctl)(struct inode *inode, struct file *file,
280 unsigned int cmd, void *arg);
281#ifdef CONFIG_VIDEO_V4L1_COMPAT
282int v4l_compat_translate_ioctl(struct inode *inode, struct file *file,
283 int cmd, void *arg, v4l2_kioctl driver_ioctl);
284#else
285#define v4l_compat_translate_ioctl(inode, file, cmd, arg, ioctl) (-EINVAL)
286#endif
287
288/* 32 Bits compatibility layer for 64 bits processors */
289extern long v4l_compat_ioctl32(struct file *file, unsigned int cmd,
290 unsigned long arg);
291
292extern int video_ioctl2(struct inode *inode, struct file *file,
293 unsigned int cmd, unsigned long arg);
294
295/* Include support for obsoleted stuff */
296extern int video_usercopy(struct inode *inode, struct file *file,
297 unsigned int cmd, unsigned long arg,
298 int (*func)(struct inode *inode, struct file *file,
299 unsigned int cmd, void *arg));
300
301#endif /* _V4L2_IOCTL_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-22 17:13:25 -0500