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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 | #include <linux/videodev2.h> |
18 | |
19 | struct v4l2_fh; |
20 | |
21 | struct v4l2_ioctl_ops { |
22 | /* ioctl callbacks */ |
23 | |
24 | /* VIDIOC_QUERYCAP handler */ |
25 | int (*vidioc_querycap)(struct file *file, void *fh, struct v4l2_capability *cap); |
26 | |
27 | /* Priority handling */ |
28 | int (*vidioc_g_priority) (struct file *file, void *fh, |
29 | enum v4l2_priority *p); |
30 | int (*vidioc_s_priority) (struct file *file, void *fh, |
31 | enum v4l2_priority p); |
32 | |
33 | /* VIDIOC_ENUM_FMT handlers */ |
34 | int (*vidioc_enum_fmt_vid_cap) (struct file *file, void *fh, |
35 | struct v4l2_fmtdesc *f); |
36 | int (*vidioc_enum_fmt_vid_overlay) (struct file *file, void *fh, |
37 | struct v4l2_fmtdesc *f); |
38 | int (*vidioc_enum_fmt_vid_out) (struct file *file, void *fh, |
39 | struct v4l2_fmtdesc *f); |
40 | int (*vidioc_enum_fmt_vid_cap_mplane)(struct file *file, void *fh, |
41 | struct v4l2_fmtdesc *f); |
42 | int (*vidioc_enum_fmt_vid_out_mplane)(struct file *file, void *fh, |
43 | struct v4l2_fmtdesc *f); |
44 | int (*vidioc_enum_fmt_type_private)(struct file *file, void *fh, |
45 | struct v4l2_fmtdesc *f); |
46 | |
47 | /* VIDIOC_G_FMT handlers */ |
48 | int (*vidioc_g_fmt_vid_cap) (struct file *file, void *fh, |
49 | struct v4l2_format *f); |
50 | int (*vidioc_g_fmt_vid_overlay)(struct file *file, void *fh, |
51 | struct v4l2_format *f); |
52 | int (*vidioc_g_fmt_vid_out) (struct file *file, void *fh, |
53 | struct v4l2_format *f); |
54 | int (*vidioc_g_fmt_vid_out_overlay)(struct file *file, void *fh, |
55 | struct v4l2_format *f); |
56 | int (*vidioc_g_fmt_vbi_cap) (struct file *file, void *fh, |
57 | struct v4l2_format *f); |
58 | int (*vidioc_g_fmt_vbi_out) (struct file *file, void *fh, |
59 | struct v4l2_format *f); |
60 | int (*vidioc_g_fmt_sliced_vbi_cap)(struct file *file, void *fh, |
61 | struct v4l2_format *f); |
62 | int (*vidioc_g_fmt_sliced_vbi_out)(struct file *file, void *fh, |
63 | struct v4l2_format *f); |
64 | int (*vidioc_g_fmt_vid_cap_mplane)(struct file *file, void *fh, |
65 | struct v4l2_format *f); |
66 | int (*vidioc_g_fmt_vid_out_mplane)(struct file *file, void *fh, |
67 | struct v4l2_format *f); |
68 | int (*vidioc_g_fmt_type_private)(struct file *file, void *fh, |
69 | struct v4l2_format *f); |
70 | |
71 | /* VIDIOC_S_FMT handlers */ |
72 | int (*vidioc_s_fmt_vid_cap) (struct file *file, void *fh, |
73 | struct v4l2_format *f); |
74 | int (*vidioc_s_fmt_vid_overlay)(struct file *file, void *fh, |
75 | struct v4l2_format *f); |
76 | int (*vidioc_s_fmt_vid_out) (struct file *file, void *fh, |
77 | struct v4l2_format *f); |
78 | int (*vidioc_s_fmt_vid_out_overlay)(struct file *file, void *fh, |
79 | struct v4l2_format *f); |
80 | int (*vidioc_s_fmt_vbi_cap) (struct file *file, void *fh, |
81 | struct v4l2_format *f); |
82 | int (*vidioc_s_fmt_vbi_out) (struct file *file, void *fh, |
83 | struct v4l2_format *f); |
84 | int (*vidioc_s_fmt_sliced_vbi_cap)(struct file *file, void *fh, |
85 | struct v4l2_format *f); |
86 | int (*vidioc_s_fmt_sliced_vbi_out)(struct file *file, void *fh, |
87 | struct v4l2_format *f); |
88 | int (*vidioc_s_fmt_vid_cap_mplane)(struct file *file, void *fh, |
89 | struct v4l2_format *f); |
90 | int (*vidioc_s_fmt_vid_out_mplane)(struct file *file, void *fh, |
91 | struct v4l2_format *f); |
92 | int (*vidioc_s_fmt_type_private)(struct file *file, void *fh, |
93 | struct v4l2_format *f); |
94 | |
95 | /* VIDIOC_TRY_FMT handlers */ |
96 | int (*vidioc_try_fmt_vid_cap) (struct file *file, void *fh, |
97 | struct v4l2_format *f); |
98 | int (*vidioc_try_fmt_vid_overlay)(struct file *file, void *fh, |
99 | struct v4l2_format *f); |
100 | int (*vidioc_try_fmt_vid_out) (struct file *file, void *fh, |
101 | struct v4l2_format *f); |
102 | int (*vidioc_try_fmt_vid_out_overlay)(struct file *file, void *fh, |
103 | struct v4l2_format *f); |
104 | int (*vidioc_try_fmt_vbi_cap) (struct file *file, void *fh, |
105 | struct v4l2_format *f); |
106 | int (*vidioc_try_fmt_vbi_out) (struct file *file, void *fh, |
107 | struct v4l2_format *f); |
108 | int (*vidioc_try_fmt_sliced_vbi_cap)(struct file *file, void *fh, |
109 | struct v4l2_format *f); |
110 | int (*vidioc_try_fmt_sliced_vbi_out)(struct file *file, void *fh, |
111 | struct v4l2_format *f); |
112 | int (*vidioc_try_fmt_vid_cap_mplane)(struct file *file, void *fh, |
113 | struct v4l2_format *f); |
114 | int (*vidioc_try_fmt_vid_out_mplane)(struct file *file, void *fh, |
115 | struct v4l2_format *f); |
116 | int (*vidioc_try_fmt_type_private)(struct file *file, void *fh, |
117 | struct v4l2_format *f); |
118 | |
119 | /* Buffer handlers */ |
120 | int (*vidioc_reqbufs) (struct file *file, void *fh, struct v4l2_requestbuffers *b); |
121 | int (*vidioc_querybuf)(struct file *file, void *fh, struct v4l2_buffer *b); |
122 | int (*vidioc_qbuf) (struct file *file, void *fh, struct v4l2_buffer *b); |
123 | int (*vidioc_dqbuf) (struct file *file, void *fh, struct v4l2_buffer *b); |
124 | |
125 | |
126 | int (*vidioc_overlay) (struct file *file, void *fh, unsigned int i); |
127 | int (*vidioc_g_fbuf) (struct file *file, void *fh, |
128 | struct v4l2_framebuffer *a); |
129 | int (*vidioc_s_fbuf) (struct file *file, void *fh, |
130 | struct v4l2_framebuffer *a); |
131 | |
132 | /* Stream on/off */ |
133 | int (*vidioc_streamon) (struct file *file, void *fh, enum v4l2_buf_type i); |
134 | int (*vidioc_streamoff)(struct file *file, void *fh, enum v4l2_buf_type i); |
135 | |
136 | /* Standard handling |
137 | ENUMSTD is handled by videodev.c |
138 | */ |
139 | int (*vidioc_g_std) (struct file *file, void *fh, v4l2_std_id *norm); |
140 | int (*vidioc_s_std) (struct file *file, void *fh, v4l2_std_id *norm); |
141 | int (*vidioc_querystd) (struct file *file, void *fh, v4l2_std_id *a); |
142 | |
143 | /* Input handling */ |
144 | int (*vidioc_enum_input)(struct file *file, void *fh, |
145 | struct v4l2_input *inp); |
146 | int (*vidioc_g_input) (struct file *file, void *fh, unsigned int *i); |
147 | int (*vidioc_s_input) (struct file *file, void *fh, unsigned int i); |
148 | |
149 | /* Output handling */ |
150 | int (*vidioc_enum_output) (struct file *file, void *fh, |
151 | struct v4l2_output *a); |
152 | int (*vidioc_g_output) (struct file *file, void *fh, unsigned int *i); |
153 | int (*vidioc_s_output) (struct file *file, void *fh, unsigned int i); |
154 | |
155 | /* Control handling */ |
156 | int (*vidioc_queryctrl) (struct file *file, void *fh, |
157 | struct v4l2_queryctrl *a); |
158 | int (*vidioc_g_ctrl) (struct file *file, void *fh, |
159 | struct v4l2_control *a); |
160 | int (*vidioc_s_ctrl) (struct file *file, void *fh, |
161 | struct v4l2_control *a); |
162 | int (*vidioc_g_ext_ctrls) (struct file *file, void *fh, |
163 | struct v4l2_ext_controls *a); |
164 | int (*vidioc_s_ext_ctrls) (struct file *file, void *fh, |
165 | struct v4l2_ext_controls *a); |
166 | int (*vidioc_try_ext_ctrls) (struct file *file, void *fh, |
167 | struct v4l2_ext_controls *a); |
168 | int (*vidioc_querymenu) (struct file *file, void *fh, |
169 | struct v4l2_querymenu *a); |
170 | |
171 | /* Audio ioctls */ |
172 | int (*vidioc_enumaudio) (struct file *file, void *fh, |
173 | struct v4l2_audio *a); |
174 | int (*vidioc_g_audio) (struct file *file, void *fh, |
175 | struct v4l2_audio *a); |
176 | int (*vidioc_s_audio) (struct file *file, void *fh, |
177 | struct v4l2_audio *a); |
178 | |
179 | /* Audio out ioctls */ |
180 | int (*vidioc_enumaudout) (struct file *file, void *fh, |
181 | struct v4l2_audioout *a); |
182 | int (*vidioc_g_audout) (struct file *file, void *fh, |
183 | struct v4l2_audioout *a); |
184 | int (*vidioc_s_audout) (struct file *file, void *fh, |
185 | struct v4l2_audioout *a); |
186 | int (*vidioc_g_modulator) (struct file *file, void *fh, |
187 | struct v4l2_modulator *a); |
188 | int (*vidioc_s_modulator) (struct file *file, void *fh, |
189 | struct v4l2_modulator *a); |
190 | /* Crop ioctls */ |
191 | int (*vidioc_cropcap) (struct file *file, void *fh, |
192 | struct v4l2_cropcap *a); |
193 | int (*vidioc_g_crop) (struct file *file, void *fh, |
194 | struct v4l2_crop *a); |
195 | int (*vidioc_s_crop) (struct file *file, void *fh, |
196 | struct v4l2_crop *a); |
197 | /* Compression ioctls */ |
198 | int (*vidioc_g_jpegcomp) (struct file *file, void *fh, |
199 | struct v4l2_jpegcompression *a); |
200 | int (*vidioc_s_jpegcomp) (struct file *file, void *fh, |
201 | struct v4l2_jpegcompression *a); |
202 | int (*vidioc_g_enc_index) (struct file *file, void *fh, |
203 | struct v4l2_enc_idx *a); |
204 | int (*vidioc_encoder_cmd) (struct file *file, void *fh, |
205 | struct v4l2_encoder_cmd *a); |
206 | int (*vidioc_try_encoder_cmd) (struct file *file, void *fh, |
207 | struct v4l2_encoder_cmd *a); |
208 | |
209 | /* Stream type-dependent parameter ioctls */ |
210 | int (*vidioc_g_parm) (struct file *file, void *fh, |
211 | struct v4l2_streamparm *a); |
212 | int (*vidioc_s_parm) (struct file *file, void *fh, |
213 | struct v4l2_streamparm *a); |
214 | |
215 | /* Tuner ioctls */ |
216 | int (*vidioc_g_tuner) (struct file *file, void *fh, |
217 | struct v4l2_tuner *a); |
218 | int (*vidioc_s_tuner) (struct file *file, void *fh, |
219 | struct v4l2_tuner *a); |
220 | int (*vidioc_g_frequency) (struct file *file, void *fh, |
221 | struct v4l2_frequency *a); |
222 | int (*vidioc_s_frequency) (struct file *file, void *fh, |
223 | struct v4l2_frequency *a); |
224 | |
225 | /* Sliced VBI cap */ |
226 | int (*vidioc_g_sliced_vbi_cap) (struct file *file, void *fh, |
227 | struct v4l2_sliced_vbi_cap *a); |
228 | |
229 | /* Log status ioctl */ |
230 | int (*vidioc_log_status) (struct file *file, void *fh); |
231 | |
232 | int (*vidioc_s_hw_freq_seek) (struct file *file, void *fh, |
233 | struct v4l2_hw_freq_seek *a); |
234 | |
235 | /* Debugging ioctls */ |
236 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
237 | int (*vidioc_g_register) (struct file *file, void *fh, |
238 | struct v4l2_dbg_register *reg); |
239 | int (*vidioc_s_register) (struct file *file, void *fh, |
240 | struct v4l2_dbg_register *reg); |
241 | #endif |
242 | int (*vidioc_g_chip_ident) (struct file *file, void *fh, |
243 | struct v4l2_dbg_chip_ident *chip); |
244 | |
245 | int (*vidioc_enum_framesizes) (struct file *file, void *fh, |
246 | struct v4l2_frmsizeenum *fsize); |
247 | |
248 | int (*vidioc_enum_frameintervals) (struct file *file, void *fh, |
249 | struct v4l2_frmivalenum *fival); |
250 | |
251 | /* DV Timings IOCTLs */ |
252 | int (*vidioc_enum_dv_presets) (struct file *file, void *fh, |
253 | struct v4l2_dv_enum_preset *preset); |
254 | |
255 | int (*vidioc_s_dv_preset) (struct file *file, void *fh, |
256 | struct v4l2_dv_preset *preset); |
257 | int (*vidioc_g_dv_preset) (struct file *file, void *fh, |
258 | struct v4l2_dv_preset *preset); |
259 | int (*vidioc_query_dv_preset) (struct file *file, void *fh, |
260 | struct v4l2_dv_preset *qpreset); |
261 | int (*vidioc_s_dv_timings) (struct file *file, void *fh, |
262 | struct v4l2_dv_timings *timings); |
263 | int (*vidioc_g_dv_timings) (struct file *file, void *fh, |
264 | struct v4l2_dv_timings *timings); |
265 | |
266 | int (*vidioc_subscribe_event) (struct v4l2_fh *fh, |
267 | struct v4l2_event_subscription *sub); |
268 | int (*vidioc_unsubscribe_event)(struct v4l2_fh *fh, |
269 | struct v4l2_event_subscription *sub); |
270 | |
271 | /* For other private ioctls */ |
272 | long (*vidioc_default) (struct file *file, void *fh, |
273 | bool valid_prio, int cmd, void *arg); |
274 | }; |
275 | |
276 | |
277 | /* v4l debugging and diagnostics */ |
278 | |
279 | /* Debug bitmask flags to be used on V4L2 */ |
280 | #define V4L2_DEBUG_IOCTL 0x01 |
281 | #define V4L2_DEBUG_IOCTL_ARG 0x02 |
282 | |
283 | /* Use this macro for non-I2C drivers. Pass the driver name as the first arg. */ |
284 | #define v4l_print_ioctl(name, cmd) \ |
285 | do { \ |
286 | printk(KERN_DEBUG "%s: ", name); \ |
287 | v4l_printk_ioctl(cmd); \ |
288 | } while (0) |
289 | |
290 | /* Use this macro in I2C drivers where 'client' is the struct i2c_client |
291 | pointer */ |
292 | #define v4l_i2c_print_ioctl(client, cmd) \ |
293 | do { \ |
294 | v4l_client_printk(KERN_DEBUG, client, ""); \ |
295 | v4l_printk_ioctl(cmd); \ |
296 | } while (0) |
297 | |
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 */ |
304 | extern void v4l_printk_ioctl(unsigned int cmd); |
305 | |
306 | /* names for fancy debug output */ |
307 | extern const char *v4l2_field_names[]; |
308 | extern const char *v4l2_type_names[]; |
309 | |
310 | #ifdef CONFIG_COMPAT |
311 | /* 32 Bits compatibility layer for 64 bits processors */ |
312 | extern long v4l2_compat_ioctl32(struct file *file, unsigned int cmd, |
313 | unsigned long arg); |
314 | #endif |
315 | |
316 | typedef long (*v4l2_kioctl)(struct file *file, |
317 | unsigned int cmd, void *arg); |
318 | |
319 | /* Include support for obsoleted stuff */ |
320 | extern long video_usercopy(struct file *file, unsigned int cmd, |
321 | unsigned long arg, v4l2_kioctl func); |
322 | |
323 | /* Standard handlers for V4L ioctl's */ |
324 | extern long video_ioctl2(struct file *file, |
325 | unsigned int cmd, unsigned long arg); |
326 | |
327 | #endif /* _V4L2_IOCTL_H */ |
328 |
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