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35ea11ff HV |
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 | ||
a399810c HV |
23 | struct 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 | ||
2864462e MCC |
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 | ||
35ea11ff HV |
267 | /* Video standard functions */ |
268 | extern const char *v4l2_norm_to_name(v4l2_std_id id); | |
269 | extern int v4l2_video_std_construct(struct v4l2_standard *vs, | |
270 | int id, const char *name); | |
271 | /* Prints the ioctl in a human-readable format */ | |
272 | extern void v4l_printk_ioctl(unsigned int cmd); | |
273 | ||
274 | /* names for fancy debug output */ | |
275 | extern const char *v4l2_field_names[]; | |
276 | extern const char *v4l2_type_names[]; | |
277 | ||
278 | /* Compatibility layer interface -- v4l1-compat module */ | |
279 | typedef int (*v4l2_kioctl)(struct inode *inode, struct file *file, | |
280 | unsigned int cmd, void *arg); | |
281 | #ifdef CONFIG_VIDEO_V4L1_COMPAT | |
282 | int 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 */ | |
289 | extern long v4l_compat_ioctl32(struct file *file, unsigned int cmd, | |
290 | unsigned long arg); | |
291 | ||
292 | extern int video_ioctl2(struct inode *inode, struct file *file, | |
293 | unsigned int cmd, unsigned long arg); | |
294 | ||
295 | /* Include support for obsoleted stuff */ | |
296 | extern 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 */ |