diff options
Diffstat (limited to 'include/media/v4l2-dev.h')
-rw-r--r-- | include/media/v4l2-dev.h | 322 |
1 files changed, 19 insertions, 303 deletions
diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h index 33f01ae08f76..2745e1afc722 100644 --- a/include/media/v4l2-dev.h +++ b/include/media/v4l2-dev.h | |||
@@ -9,7 +9,6 @@ | |||
9 | #ifndef _V4L2_DEV_H | 9 | #ifndef _V4L2_DEV_H |
10 | #define _V4L2_DEV_H | 10 | #define _V4L2_DEV_H |
11 | 11 | ||
12 | #define OBSOLETE_OWNER 1 /* to be removed soon */ | ||
13 | #define OBSOLETE_DEVDATA 1 /* to be removed soon */ | 12 | #define OBSOLETE_DEVDATA 1 /* to be removed soon */ |
14 | 13 | ||
15 | #include <linux/poll.h> | 14 | #include <linux/poll.h> |
@@ -17,11 +16,7 @@ | |||
17 | #include <linux/device.h> | 16 | #include <linux/device.h> |
18 | #include <linux/mutex.h> | 17 | #include <linux/mutex.h> |
19 | #include <linux/compiler.h> /* need __user */ | 18 | #include <linux/compiler.h> /* need __user */ |
20 | #ifdef CONFIG_VIDEO_V4L1_COMPAT | ||
21 | #include <linux/videodev.h> | ||
22 | #else | ||
23 | #include <linux/videodev2.h> | 19 | #include <linux/videodev2.h> |
24 | #endif | ||
25 | 20 | ||
26 | #define VIDEO_MAJOR 81 | 21 | #define VIDEO_MAJOR 81 |
27 | /* Minor device allocation */ | 22 | /* Minor device allocation */ |
@@ -39,42 +34,7 @@ | |||
39 | #define VFL_TYPE_RADIO 2 | 34 | #define VFL_TYPE_RADIO 2 |
40 | #define VFL_TYPE_VTX 3 | 35 | #define VFL_TYPE_VTX 3 |
41 | 36 | ||
42 | /* Video standard functions */ | 37 | struct v4l2_ioctl_callbacks; |
43 | extern char *v4l2_norm_to_name(v4l2_std_id id); | ||
44 | extern int v4l2_video_std_construct(struct v4l2_standard *vs, | ||
45 | int id, char *name); | ||
46 | /* Prints the ioctl in a human-readable format */ | ||
47 | extern void v4l_printk_ioctl(unsigned int cmd); | ||
48 | |||
49 | /* prority handling */ | ||
50 | struct v4l2_prio_state { | ||
51 | atomic_t prios[4]; | ||
52 | }; | ||
53 | int v4l2_prio_init(struct v4l2_prio_state *global); | ||
54 | int v4l2_prio_change(struct v4l2_prio_state *global, enum v4l2_priority *local, | ||
55 | enum v4l2_priority new); | ||
56 | int v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local); | ||
57 | int v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority *local); | ||
58 | enum v4l2_priority v4l2_prio_max(struct v4l2_prio_state *global); | ||
59 | int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority *local); | ||
60 | |||
61 | /* names for fancy debug output */ | ||
62 | extern char *v4l2_field_names[]; | ||
63 | extern char *v4l2_type_names[]; | ||
64 | |||
65 | /* Compatibility layer interface -- v4l1-compat module */ | ||
66 | typedef int (*v4l2_kioctl)(struct inode *inode, struct file *file, | ||
67 | unsigned int cmd, void *arg); | ||
68 | #ifdef CONFIG_VIDEO_V4L1_COMPAT | ||
69 | int v4l_compat_translate_ioctl(struct inode *inode, struct file *file, | ||
70 | int cmd, void *arg, v4l2_kioctl driver_ioctl); | ||
71 | #else | ||
72 | #define v4l_compat_translate_ioctl(inode,file,cmd,arg,ioctl) -EINVAL | ||
73 | #endif | ||
74 | |||
75 | /* 32 Bits compatibility layer for 64 bits processors */ | ||
76 | extern long v4l_compat_ioctl32(struct file *file, unsigned int cmd, | ||
77 | unsigned long arg); | ||
78 | 38 | ||
79 | /* | 39 | /* |
80 | * Newer version of video_device, handled by videodev2.c | 40 | * Newer version of video_device, handled by videodev2.c |
@@ -88,16 +48,17 @@ struct video_device | |||
88 | const struct file_operations *fops; | 48 | const struct file_operations *fops; |
89 | 49 | ||
90 | /* sysfs */ | 50 | /* sysfs */ |
91 | struct device class_dev; /* v4l device */ | 51 | struct device dev; /* v4l device */ |
92 | struct device *dev; /* device parent */ | 52 | struct device *parent; /* device parent */ |
93 | 53 | ||
94 | /* device info */ | 54 | /* device info */ |
95 | char name[32]; | 55 | char name[32]; |
96 | int type; /* v4l1 */ | 56 | int vfl_type; |
97 | int type2; /* v4l2 */ | ||
98 | int minor; | 57 | int minor; |
58 | /* attribute to differentiate multiple indices on one physical device */ | ||
59 | int index; | ||
99 | 60 | ||
100 | int debug; /* Activates debug level*/ | 61 | int debug; /* Activates debug level*/ |
101 | 62 | ||
102 | /* Video standard vars */ | 63 | /* Video standard vars */ |
103 | v4l2_std_id tvnorms; /* Supported tv norms */ | 64 | v4l2_std_id tvnorms; /* Supported tv norms */ |
@@ -107,278 +68,36 @@ struct video_device | |||
107 | void (*release)(struct video_device *vfd); | 68 | void (*release)(struct video_device *vfd); |
108 | 69 | ||
109 | /* ioctl callbacks */ | 70 | /* ioctl callbacks */ |
71 | const struct v4l2_ioctl_ops *ioctl_ops; | ||
110 | 72 | ||
111 | /* VIDIOC_QUERYCAP handler */ | 73 | #ifdef OBSOLETE_DEVDATA /* to be removed soon */ |
112 | int (*vidioc_querycap)(struct file *file, void *fh, struct v4l2_capability *cap); | 74 | /* dev->driver_data will be used instead some day. |
113 | 75 | * Use the video_{get|set}_drvdata() helper functions, | |
114 | /* Priority handling */ | 76 | * so the switch over will be transparent for you. |
115 | int (*vidioc_g_priority) (struct file *file, void *fh, | 77 | * Or use {pci|usb}_{get|set}_drvdata() directly. */ |
116 | enum v4l2_priority *p); | 78 | void *priv; |
117 | int (*vidioc_s_priority) (struct file *file, void *fh, | ||
118 | enum v4l2_priority p); | ||
119 | |||
120 | /* VIDIOC_ENUM_FMT handlers */ | ||
121 | int (*vidioc_enum_fmt_cap) (struct file *file, void *fh, | ||
122 | struct v4l2_fmtdesc *f); | ||
123 | int (*vidioc_enum_fmt_overlay) (struct file *file, void *fh, | ||
124 | struct v4l2_fmtdesc *f); | ||
125 | int (*vidioc_enum_fmt_vbi) (struct file *file, void *fh, | ||
126 | struct v4l2_fmtdesc *f); | ||
127 | int (*vidioc_enum_fmt_vbi_capture) (struct file *file, void *fh, | ||
128 | struct v4l2_fmtdesc *f); | ||
129 | int (*vidioc_enum_fmt_video_output)(struct file *file, void *fh, | ||
130 | struct v4l2_fmtdesc *f); | ||
131 | int (*vidioc_enum_fmt_output_overlay) (struct file *file, void *fh, | ||
132 | struct v4l2_fmtdesc *f); | ||
133 | int (*vidioc_enum_fmt_vbi_output) (struct file *file, void *fh, | ||
134 | struct v4l2_fmtdesc *f); | ||
135 | int (*vidioc_enum_fmt_type_private)(struct file *file, void *fh, | ||
136 | struct v4l2_fmtdesc *f); | ||
137 | |||
138 | /* VIDIOC_G_FMT handlers */ | ||
139 | int (*vidioc_g_fmt_cap) (struct file *file, void *fh, | ||
140 | struct v4l2_format *f); | ||
141 | int (*vidioc_g_fmt_overlay) (struct file *file, void *fh, | ||
142 | struct v4l2_format *f); | ||
143 | int (*vidioc_g_fmt_vbi) (struct file *file, void *fh, | ||
144 | struct v4l2_format *f); | ||
145 | int (*vidioc_g_fmt_vbi_output) (struct file *file, void *fh, | ||
146 | struct v4l2_format *f); | ||
147 | int (*vidioc_g_fmt_vbi_capture)(struct file *file, void *fh, | ||
148 | struct v4l2_format *f); | ||
149 | int (*vidioc_g_fmt_video_output)(struct file *file, void *fh, | ||
150 | struct v4l2_format *f); | ||
151 | int (*vidioc_g_fmt_output_overlay) (struct file *file, void *fh, | ||
152 | struct v4l2_format *f); | ||
153 | int (*vidioc_g_fmt_type_private)(struct file *file, void *fh, | ||
154 | struct v4l2_format *f); | ||
155 | |||
156 | /* VIDIOC_S_FMT handlers */ | ||
157 | int (*vidioc_s_fmt_cap) (struct file *file, void *fh, | ||
158 | struct v4l2_format *f); | ||
159 | |||
160 | int (*vidioc_s_fmt_overlay) (struct file *file, void *fh, | ||
161 | struct v4l2_format *f); | ||
162 | int (*vidioc_s_fmt_vbi) (struct file *file, void *fh, | ||
163 | struct v4l2_format *f); | ||
164 | int (*vidioc_s_fmt_vbi_output) (struct file *file, void *fh, | ||
165 | struct v4l2_format *f); | ||
166 | int (*vidioc_s_fmt_vbi_capture)(struct file *file, void *fh, | ||
167 | struct v4l2_format *f); | ||
168 | int (*vidioc_s_fmt_video_output)(struct file *file, void *fh, | ||
169 | struct v4l2_format *f); | ||
170 | int (*vidioc_s_fmt_output_overlay) (struct file *file, void *fh, | ||
171 | struct v4l2_format *f); | ||
172 | int (*vidioc_s_fmt_type_private)(struct file *file, void *fh, | ||
173 | struct v4l2_format *f); | ||
174 | |||
175 | /* VIDIOC_TRY_FMT handlers */ | ||
176 | int (*vidioc_try_fmt_cap) (struct file *file, void *fh, | ||
177 | struct v4l2_format *f); | ||
178 | int (*vidioc_try_fmt_overlay) (struct file *file, void *fh, | ||
179 | struct v4l2_format *f); | ||
180 | int (*vidioc_try_fmt_vbi) (struct file *file, void *fh, | ||
181 | struct v4l2_format *f); | ||
182 | int (*vidioc_try_fmt_vbi_output) (struct file *file, void *fh, | ||
183 | struct v4l2_format *f); | ||
184 | int (*vidioc_try_fmt_vbi_capture)(struct file *file, void *fh, | ||
185 | struct v4l2_format *f); | ||
186 | int (*vidioc_try_fmt_video_output)(struct file *file, void *fh, | ||
187 | struct v4l2_format *f); | ||
188 | int (*vidioc_try_fmt_output_overlay)(struct file *file, void *fh, | ||
189 | struct v4l2_format *f); | ||
190 | int (*vidioc_try_fmt_type_private)(struct file *file, void *fh, | ||
191 | struct v4l2_format *f); | ||
192 | |||
193 | /* Buffer handlers */ | ||
194 | int (*vidioc_reqbufs) (struct file *file, void *fh, struct v4l2_requestbuffers *b); | ||
195 | int (*vidioc_querybuf)(struct file *file, void *fh, struct v4l2_buffer *b); | ||
196 | int (*vidioc_qbuf) (struct file *file, void *fh, struct v4l2_buffer *b); | ||
197 | int (*vidioc_dqbuf) (struct file *file, void *fh, struct v4l2_buffer *b); | ||
198 | |||
199 | |||
200 | int (*vidioc_overlay) (struct file *file, void *fh, unsigned int i); | ||
201 | #ifdef CONFIG_VIDEO_V4L1_COMPAT | ||
202 | /* buffer type is struct vidio_mbuf * */ | ||
203 | int (*vidiocgmbuf) (struct file *file, void *fh, struct video_mbuf *p); | ||
204 | #endif | ||
205 | int (*vidioc_g_fbuf) (struct file *file, void *fh, | ||
206 | struct v4l2_framebuffer *a); | ||
207 | int (*vidioc_s_fbuf) (struct file *file, void *fh, | ||
208 | struct v4l2_framebuffer *a); | ||
209 | |||
210 | /* Stream on/off */ | ||
211 | int (*vidioc_streamon) (struct file *file, void *fh, enum v4l2_buf_type i); | ||
212 | int (*vidioc_streamoff)(struct file *file, void *fh, enum v4l2_buf_type i); | ||
213 | |||
214 | /* Standard handling | ||
215 | G_STD and ENUMSTD are handled by videodev.c | ||
216 | */ | ||
217 | int (*vidioc_s_std) (struct file *file, void *fh, v4l2_std_id *norm); | ||
218 | int (*vidioc_querystd) (struct file *file, void *fh, v4l2_std_id *a); | ||
219 | |||
220 | /* Input handling */ | ||
221 | int (*vidioc_enum_input)(struct file *file, void *fh, | ||
222 | struct v4l2_input *inp); | ||
223 | int (*vidioc_g_input) (struct file *file, void *fh, unsigned int *i); | ||
224 | int (*vidioc_s_input) (struct file *file, void *fh, unsigned int i); | ||
225 | |||
226 | /* Output handling */ | ||
227 | int (*vidioc_enumoutput) (struct file *file, void *fh, | ||
228 | struct v4l2_output *a); | ||
229 | int (*vidioc_g_output) (struct file *file, void *fh, unsigned int *i); | ||
230 | int (*vidioc_s_output) (struct file *file, void *fh, unsigned int i); | ||
231 | |||
232 | /* Control handling */ | ||
233 | int (*vidioc_queryctrl) (struct file *file, void *fh, | ||
234 | struct v4l2_queryctrl *a); | ||
235 | int (*vidioc_g_ctrl) (struct file *file, void *fh, | ||
236 | struct v4l2_control *a); | ||
237 | int (*vidioc_s_ctrl) (struct file *file, void *fh, | ||
238 | struct v4l2_control *a); | ||
239 | int (*vidioc_g_ext_ctrls) (struct file *file, void *fh, | ||
240 | struct v4l2_ext_controls *a); | ||
241 | int (*vidioc_s_ext_ctrls) (struct file *file, void *fh, | ||
242 | struct v4l2_ext_controls *a); | ||
243 | int (*vidioc_try_ext_ctrls) (struct file *file, void *fh, | ||
244 | struct v4l2_ext_controls *a); | ||
245 | int (*vidioc_querymenu) (struct file *file, void *fh, | ||
246 | struct v4l2_querymenu *a); | ||
247 | |||
248 | /* Audio ioctls */ | ||
249 | int (*vidioc_enumaudio) (struct file *file, void *fh, | ||
250 | struct v4l2_audio *a); | ||
251 | int (*vidioc_g_audio) (struct file *file, void *fh, | ||
252 | struct v4l2_audio *a); | ||
253 | int (*vidioc_s_audio) (struct file *file, void *fh, | ||
254 | struct v4l2_audio *a); | ||
255 | |||
256 | /* Audio out ioctls */ | ||
257 | int (*vidioc_enumaudout) (struct file *file, void *fh, | ||
258 | struct v4l2_audioout *a); | ||
259 | int (*vidioc_g_audout) (struct file *file, void *fh, | ||
260 | struct v4l2_audioout *a); | ||
261 | int (*vidioc_s_audout) (struct file *file, void *fh, | ||
262 | struct v4l2_audioout *a); | ||
263 | int (*vidioc_g_modulator) (struct file *file, void *fh, | ||
264 | struct v4l2_modulator *a); | ||
265 | int (*vidioc_s_modulator) (struct file *file, void *fh, | ||
266 | struct v4l2_modulator *a); | ||
267 | /* Crop ioctls */ | ||
268 | int (*vidioc_cropcap) (struct file *file, void *fh, | ||
269 | struct v4l2_cropcap *a); | ||
270 | int (*vidioc_g_crop) (struct file *file, void *fh, | ||
271 | struct v4l2_crop *a); | ||
272 | int (*vidioc_s_crop) (struct file *file, void *fh, | ||
273 | struct v4l2_crop *a); | ||
274 | /* Compression ioctls */ | ||
275 | int (*vidioc_g_jpegcomp) (struct file *file, void *fh, | ||
276 | struct v4l2_jpegcompression *a); | ||
277 | int (*vidioc_s_jpegcomp) (struct file *file, void *fh, | ||
278 | struct v4l2_jpegcompression *a); | ||
279 | int (*vidioc_g_enc_index) (struct file *file, void *fh, | ||
280 | struct v4l2_enc_idx *a); | ||
281 | int (*vidioc_encoder_cmd) (struct file *file, void *fh, | ||
282 | struct v4l2_encoder_cmd *a); | ||
283 | int (*vidioc_try_encoder_cmd) (struct file *file, void *fh, | ||
284 | struct v4l2_encoder_cmd *a); | ||
285 | |||
286 | /* Stream type-dependent parameter ioctls */ | ||
287 | int (*vidioc_g_parm) (struct file *file, void *fh, | ||
288 | struct v4l2_streamparm *a); | ||
289 | int (*vidioc_s_parm) (struct file *file, void *fh, | ||
290 | struct v4l2_streamparm *a); | ||
291 | |||
292 | /* Tuner ioctls */ | ||
293 | int (*vidioc_g_tuner) (struct file *file, void *fh, | ||
294 | struct v4l2_tuner *a); | ||
295 | int (*vidioc_s_tuner) (struct file *file, void *fh, | ||
296 | struct v4l2_tuner *a); | ||
297 | int (*vidioc_g_frequency) (struct file *file, void *fh, | ||
298 | struct v4l2_frequency *a); | ||
299 | int (*vidioc_s_frequency) (struct file *file, void *fh, | ||
300 | struct v4l2_frequency *a); | ||
301 | |||
302 | /* Sliced VBI cap */ | ||
303 | int (*vidioc_g_sliced_vbi_cap) (struct file *file, void *fh, | ||
304 | struct v4l2_sliced_vbi_cap *a); | ||
305 | |||
306 | /* Log status ioctl */ | ||
307 | int (*vidioc_log_status) (struct file *file, void *fh); | ||
308 | |||
309 | |||
310 | /* Debugging ioctls */ | ||
311 | #ifdef CONFIG_VIDEO_ADV_DEBUG | ||
312 | int (*vidioc_g_register) (struct file *file, void *fh, | ||
313 | struct v4l2_register *reg); | ||
314 | int (*vidioc_s_register) (struct file *file, void *fh, | ||
315 | struct v4l2_register *reg); | ||
316 | #endif | ||
317 | int (*vidioc_g_chip_ident) (struct file *file, void *fh, | ||
318 | struct v4l2_chip_ident *chip); | ||
319 | |||
320 | /* For other private ioctls */ | ||
321 | int (*vidioc_default) (struct file *file, void *fh, | ||
322 | int cmd, void *arg); | ||
323 | |||
324 | |||
325 | #ifdef OBSOLETE_OWNER /* to be removed soon */ | ||
326 | /* obsolete -- fops->owner is used instead */ | ||
327 | struct module *owner; | ||
328 | /* dev->driver_data will be used instead some day. | ||
329 | * Use the video_{get|set}_drvdata() helper functions, | ||
330 | * so the switch over will be transparent for you. | ||
331 | * Or use {pci|usb}_{get|set}_drvdata() directly. */ | ||
332 | void *priv; | ||
333 | #endif | 79 | #endif |
334 | 80 | ||
335 | /* for videodev.c intenal usage -- please don't touch */ | 81 | /* for videodev.c internal usage -- please don't touch */ |
336 | int users; /* video_exclusive_{open|close} ... */ | 82 | int users; /* video_exclusive_{open|close} ... */ |
337 | struct mutex lock; /* ... helper function uses these */ | 83 | struct mutex lock; /* ... helper function uses these */ |
338 | }; | 84 | }; |
339 | 85 | ||
340 | /* Class-dev to video-device */ | 86 | /* Class-dev to video-device */ |
341 | #define to_video_device(cd) container_of(cd, struct video_device, class_dev) | 87 | #define to_video_device(cd) container_of(cd, struct video_device, dev) |
342 | 88 | ||
343 | /* Version 2 functions */ | 89 | /* Version 2 functions */ |
344 | extern int video_register_device(struct video_device *vfd, int type, int nr); | 90 | extern int video_register_device(struct video_device *vfd, int type, int nr); |
91 | int video_register_device_index(struct video_device *vfd, int type, int nr, | ||
92 | int index); | ||
345 | void video_unregister_device(struct video_device *); | 93 | void video_unregister_device(struct video_device *); |
346 | extern int video_ioctl2(struct inode *inode, struct file *file, | ||
347 | unsigned int cmd, unsigned long arg); | ||
348 | 94 | ||
349 | /* helper functions to alloc / release struct video_device, the | 95 | /* helper functions to alloc / release struct video_device, the |
350 | later can be used for video_device->release() */ | 96 | later can be used for video_device->release() */ |
351 | struct video_device *video_device_alloc(void); | 97 | struct video_device *video_device_alloc(void); |
352 | void video_device_release(struct video_device *vfd); | 98 | void video_device_release(struct video_device *vfd); |
353 | 99 | ||
354 | /* Include support for obsoleted stuff */ | 100 | #ifdef OBSOLETE_DEVDATA /* to be removed soon */ |
355 | extern int video_usercopy(struct inode *inode, struct file *file, | ||
356 | unsigned int cmd, unsigned long arg, | ||
357 | int (*func)(struct inode *inode, struct file *file, | ||
358 | unsigned int cmd, void *arg)); | ||
359 | |||
360 | #ifdef CONFIG_VIDEO_V4L1_COMPAT | ||
361 | #include <linux/mm.h> | ||
362 | |||
363 | static inline int __must_check | ||
364 | video_device_create_file(struct video_device *vfd, | ||
365 | struct device_attribute *attr) | ||
366 | { | ||
367 | int ret = device_create_file(&vfd->class_dev, attr); | ||
368 | if (ret < 0) | ||
369 | printk(KERN_WARNING "%s error: %d\n", __FUNCTION__, ret); | ||
370 | return ret; | ||
371 | } | ||
372 | static inline void | ||
373 | video_device_remove_file(struct video_device *vfd, | ||
374 | struct device_attribute *attr) | ||
375 | { | ||
376 | device_remove_file(&vfd->class_dev, attr); | ||
377 | } | ||
378 | |||
379 | #endif /* CONFIG_VIDEO_V4L1_COMPAT */ | ||
380 | |||
381 | #ifdef OBSOLETE_OWNER /* to be removed soon */ | ||
382 | /* helper functions to access driver private data. */ | 101 | /* helper functions to access driver private data. */ |
383 | static inline void *video_get_drvdata(struct video_device *dev) | 102 | static inline void *video_get_drvdata(struct video_device *dev) |
384 | { | 103 | { |
@@ -390,9 +109,6 @@ static inline void video_set_drvdata(struct video_device *dev, void *data) | |||
390 | dev->priv = data; | 109 | dev->priv = data; |
391 | } | 110 | } |
392 | 111 | ||
393 | #endif | ||
394 | |||
395 | #ifdef OBSOLETE_DEVDATA /* to be removed soon */ | ||
396 | /* Obsolete stuff - Still needed for radio devices and obsolete drivers */ | 112 | /* Obsolete stuff - Still needed for radio devices and obsolete drivers */ |
397 | extern struct video_device* video_devdata(struct file*); | 113 | extern struct video_device* video_devdata(struct file*); |
398 | extern int video_exclusive_open(struct inode *inode, struct file *file); | 114 | extern int video_exclusive_open(struct inode *inode, struct file *file); |