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-rw-r--r--include/media/v4l2-dev.h325
1 files changed, 16 insertions, 309 deletions
diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
index 33f379b1ecfe..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 */ 37struct v4l2_ioctl_callbacks;
43extern const char *v4l2_norm_to_name(v4l2_std_id id);
44extern int v4l2_video_std_construct(struct v4l2_standard *vs,
45 int id, const char *name);
46/* Prints the ioctl in a human-readable format */
47extern void v4l_printk_ioctl(unsigned int cmd);
48
49/* prority handling */
50struct v4l2_prio_state {
51 atomic_t prios[4];
52};
53int v4l2_prio_init(struct v4l2_prio_state *global);
54int v4l2_prio_change(struct v4l2_prio_state *global, enum v4l2_priority *local,
55 enum v4l2_priority new);
56int v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local);
57int v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority *local);
58enum v4l2_priority v4l2_prio_max(struct v4l2_prio_state *global);
59int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority *local);
60
61/* names for fancy debug output */
62extern const char *v4l2_field_names[];
63extern const char *v4l2_type_names[];
64
65/* Compatibility layer interface -- v4l1-compat module */
66typedef int (*v4l2_kioctl)(struct inode *inode, struct file *file,
67 unsigned int cmd, void *arg);
68#ifdef CONFIG_VIDEO_V4L1_COMPAT
69int 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 */
76extern 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
@@ -88,18 +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;
99 /* attribute to diferentiate multiple indexs on one physical device */ 58 /* attribute to differentiate multiple indices on one physical device */
100 int index; 59 int index;
101 60
102 int debug; /* Activates debug level*/ 61 int debug; /* Activates debug level*/
103 62
104 /* Video standard vars */ 63 /* Video standard vars */
105 v4l2_std_id tvnorms; /* Supported tv norms */ 64 v4l2_std_id tvnorms; /* Supported tv norms */
@@ -109,285 +68,36 @@ struct video_device
109 void (*release)(struct video_device *vfd); 68 void (*release)(struct video_device *vfd);
110 69
111 /* ioctl callbacks */ 70 /* ioctl callbacks */
71 const struct v4l2_ioctl_ops *ioctl_ops;
112 72
113 /* VIDIOC_QUERYCAP handler */ 73#ifdef OBSOLETE_DEVDATA /* to be removed soon */
114 int (*vidioc_querycap)(struct file *file, void *fh, struct v4l2_capability *cap); 74 /* dev->driver_data will be used instead some day.
115 75 * Use the video_{get|set}_drvdata() helper functions,
116 /* Priority handling */ 76 * so the switch over will be transparent for you.
117 int (*vidioc_g_priority) (struct file *file, void *fh, 77 * Or use {pci|usb}_{get|set}_drvdata() directly. */
118 enum v4l2_priority *p); 78 void *priv;
119 int (*vidioc_s_priority) (struct file *file, void *fh,
120 enum v4l2_priority p);
121
122 /* VIDIOC_ENUM_FMT handlers */
123 int (*vidioc_enum_fmt_vid_cap) (struct file *file, void *fh,
124 struct v4l2_fmtdesc *f);
125 int (*vidioc_enum_fmt_vid_overlay) (struct file *file, void *fh,
126 struct v4l2_fmtdesc *f);
127 int (*vidioc_enum_fmt_vid_out) (struct file *file, void *fh,
128 struct v4l2_fmtdesc *f);
129#if 1
130 /* deprecated, will be removed in 2.6.28 */
131 int (*vidioc_enum_fmt_vbi_cap) (struct file *file, void *fh,
132 struct v4l2_fmtdesc *f);
133#endif
134 int (*vidioc_enum_fmt_type_private)(struct file *file, void *fh,
135 struct v4l2_fmtdesc *f);
136
137 /* VIDIOC_G_FMT handlers */
138 int (*vidioc_g_fmt_vid_cap) (struct file *file, void *fh,
139 struct v4l2_format *f);
140 int (*vidioc_g_fmt_vid_overlay)(struct file *file, void *fh,
141 struct v4l2_format *f);
142 int (*vidioc_g_fmt_vid_out) (struct file *file, void *fh,
143 struct v4l2_format *f);
144 int (*vidioc_g_fmt_vid_out_overlay)(struct file *file, void *fh,
145 struct v4l2_format *f);
146 int (*vidioc_g_fmt_vbi_cap) (struct file *file, void *fh,
147 struct v4l2_format *f);
148 int (*vidioc_g_fmt_vbi_out) (struct file *file, void *fh,
149 struct v4l2_format *f);
150 int (*vidioc_g_fmt_sliced_vbi_cap)(struct file *file, void *fh,
151 struct v4l2_format *f);
152 int (*vidioc_g_fmt_sliced_vbi_out)(struct file *file, void *fh,
153 struct v4l2_format *f);
154 int (*vidioc_g_fmt_type_private)(struct file *file, void *fh,
155 struct v4l2_format *f);
156
157 /* VIDIOC_S_FMT handlers */
158 int (*vidioc_s_fmt_vid_cap) (struct file *file, void *fh,
159 struct v4l2_format *f);
160 int (*vidioc_s_fmt_vid_overlay)(struct file *file, void *fh,
161 struct v4l2_format *f);
162 int (*vidioc_s_fmt_vid_out) (struct file *file, void *fh,
163 struct v4l2_format *f);
164 int (*vidioc_s_fmt_vid_out_overlay)(struct file *file, void *fh,
165 struct v4l2_format *f);
166 int (*vidioc_s_fmt_vbi_cap) (struct file *file, void *fh,
167 struct v4l2_format *f);
168 int (*vidioc_s_fmt_vbi_out) (struct file *file, void *fh,
169 struct v4l2_format *f);
170 int (*vidioc_s_fmt_sliced_vbi_cap)(struct file *file, void *fh,
171 struct v4l2_format *f);
172 int (*vidioc_s_fmt_sliced_vbi_out)(struct file *file, void *fh,
173 struct v4l2_format *f);
174 int (*vidioc_s_fmt_type_private)(struct file *file, void *fh,
175 struct v4l2_format *f);
176
177 /* VIDIOC_TRY_FMT handlers */
178 int (*vidioc_try_fmt_vid_cap) (struct file *file, void *fh,
179 struct v4l2_format *f);
180 int (*vidioc_try_fmt_vid_overlay)(struct file *file, void *fh,
181 struct v4l2_format *f);
182 int (*vidioc_try_fmt_vid_out) (struct file *file, void *fh,
183 struct v4l2_format *f);
184 int (*vidioc_try_fmt_vid_out_overlay)(struct file *file, void *fh,
185 struct v4l2_format *f);
186 int (*vidioc_try_fmt_vbi_cap) (struct file *file, void *fh,
187 struct v4l2_format *f);
188 int (*vidioc_try_fmt_vbi_out) (struct file *file, void *fh,
189 struct v4l2_format *f);
190 int (*vidioc_try_fmt_sliced_vbi_cap)(struct file *file, void *fh,
191 struct v4l2_format *f);
192 int (*vidioc_try_fmt_sliced_vbi_out)(struct file *file, void *fh,
193 struct v4l2_format *f);
194 int (*vidioc_try_fmt_type_private)(struct file *file, void *fh,
195 struct v4l2_format *f);
196
197 /* Buffer handlers */
198 int (*vidioc_reqbufs) (struct file *file, void *fh, struct v4l2_requestbuffers *b);
199 int (*vidioc_querybuf)(struct file *file, void *fh, struct v4l2_buffer *b);
200 int (*vidioc_qbuf) (struct file *file, void *fh, struct v4l2_buffer *b);
201 int (*vidioc_dqbuf) (struct file *file, void *fh, struct v4l2_buffer *b);
202
203
204 int (*vidioc_overlay) (struct file *file, void *fh, unsigned int i);
205#ifdef CONFIG_VIDEO_V4L1_COMPAT
206 /* buffer type is struct vidio_mbuf * */
207 int (*vidiocgmbuf) (struct file *file, void *fh, struct video_mbuf *p);
208#endif
209 int (*vidioc_g_fbuf) (struct file *file, void *fh,
210 struct v4l2_framebuffer *a);
211 int (*vidioc_s_fbuf) (struct file *file, void *fh,
212 struct v4l2_framebuffer *a);
213
214 /* Stream on/off */
215 int (*vidioc_streamon) (struct file *file, void *fh, enum v4l2_buf_type i);
216 int (*vidioc_streamoff)(struct file *file, void *fh, enum v4l2_buf_type i);
217
218 /* Standard handling
219 ENUMSTD is handled by videodev.c
220 */
221 int (*vidioc_g_std) (struct file *file, void *fh, v4l2_std_id *norm);
222 int (*vidioc_s_std) (struct file *file, void *fh, v4l2_std_id *norm);
223 int (*vidioc_querystd) (struct file *file, void *fh, v4l2_std_id *a);
224
225 /* Input handling */
226 int (*vidioc_enum_input)(struct file *file, void *fh,
227 struct v4l2_input *inp);
228 int (*vidioc_g_input) (struct file *file, void *fh, unsigned int *i);
229 int (*vidioc_s_input) (struct file *file, void *fh, unsigned int i);
230
231 /* Output handling */
232 int (*vidioc_enum_output) (struct file *file, void *fh,
233 struct v4l2_output *a);
234 int (*vidioc_g_output) (struct file *file, void *fh, unsigned int *i);
235 int (*vidioc_s_output) (struct file *file, void *fh, unsigned int i);
236
237 /* Control handling */
238 int (*vidioc_queryctrl) (struct file *file, void *fh,
239 struct v4l2_queryctrl *a);
240 int (*vidioc_g_ctrl) (struct file *file, void *fh,
241 struct v4l2_control *a);
242 int (*vidioc_s_ctrl) (struct file *file, void *fh,
243 struct v4l2_control *a);
244 int (*vidioc_g_ext_ctrls) (struct file *file, void *fh,
245 struct v4l2_ext_controls *a);
246 int (*vidioc_s_ext_ctrls) (struct file *file, void *fh,
247 struct v4l2_ext_controls *a);
248 int (*vidioc_try_ext_ctrls) (struct file *file, void *fh,
249 struct v4l2_ext_controls *a);
250 int (*vidioc_querymenu) (struct file *file, void *fh,
251 struct v4l2_querymenu *a);
252
253 /* Audio ioctls */
254 int (*vidioc_enumaudio) (struct file *file, void *fh,
255 struct v4l2_audio *a);
256 int (*vidioc_g_audio) (struct file *file, void *fh,
257 struct v4l2_audio *a);
258 int (*vidioc_s_audio) (struct file *file, void *fh,
259 struct v4l2_audio *a);
260
261 /* Audio out ioctls */
262 int (*vidioc_enumaudout) (struct file *file, void *fh,
263 struct v4l2_audioout *a);
264 int (*vidioc_g_audout) (struct file *file, void *fh,
265 struct v4l2_audioout *a);
266 int (*vidioc_s_audout) (struct file *file, void *fh,
267 struct v4l2_audioout *a);
268 int (*vidioc_g_modulator) (struct file *file, void *fh,
269 struct v4l2_modulator *a);
270 int (*vidioc_s_modulator) (struct file *file, void *fh,
271 struct v4l2_modulator *a);
272 /* Crop ioctls */
273 int (*vidioc_cropcap) (struct file *file, void *fh,
274 struct v4l2_cropcap *a);
275 int (*vidioc_g_crop) (struct file *file, void *fh,
276 struct v4l2_crop *a);
277 int (*vidioc_s_crop) (struct file *file, void *fh,
278 struct v4l2_crop *a);
279 /* Compression ioctls */
280 int (*vidioc_g_jpegcomp) (struct file *file, void *fh,
281 struct v4l2_jpegcompression *a);
282 int (*vidioc_s_jpegcomp) (struct file *file, void *fh,
283 struct v4l2_jpegcompression *a);
284 int (*vidioc_g_enc_index) (struct file *file, void *fh,
285 struct v4l2_enc_idx *a);
286 int (*vidioc_encoder_cmd) (struct file *file, void *fh,
287 struct v4l2_encoder_cmd *a);
288 int (*vidioc_try_encoder_cmd) (struct file *file, void *fh,
289 struct v4l2_encoder_cmd *a);
290
291 /* Stream type-dependent parameter ioctls */
292 int (*vidioc_g_parm) (struct file *file, void *fh,
293 struct v4l2_streamparm *a);
294 int (*vidioc_s_parm) (struct file *file, void *fh,
295 struct v4l2_streamparm *a);
296
297 /* Tuner ioctls */
298 int (*vidioc_g_tuner) (struct file *file, void *fh,
299 struct v4l2_tuner *a);
300 int (*vidioc_s_tuner) (struct file *file, void *fh,
301 struct v4l2_tuner *a);
302 int (*vidioc_g_frequency) (struct file *file, void *fh,
303 struct v4l2_frequency *a);
304 int (*vidioc_s_frequency) (struct file *file, void *fh,
305 struct v4l2_frequency *a);
306
307 /* Sliced VBI cap */
308 int (*vidioc_g_sliced_vbi_cap) (struct file *file, void *fh,
309 struct v4l2_sliced_vbi_cap *a);
310
311 /* Log status ioctl */
312 int (*vidioc_log_status) (struct file *file, void *fh);
313
314 int (*vidioc_s_hw_freq_seek) (struct file *file, void *fh,
315 struct v4l2_hw_freq_seek *a);
316
317 /* Debugging ioctls */
318#ifdef CONFIG_VIDEO_ADV_DEBUG
319 int (*vidioc_g_register) (struct file *file, void *fh,
320 struct v4l2_register *reg);
321 int (*vidioc_s_register) (struct file *file, void *fh,
322 struct v4l2_register *reg);
323#endif
324 int (*vidioc_g_chip_ident) (struct file *file, void *fh,
325 struct v4l2_chip_ident *chip);
326
327 /* For other private ioctls */
328 int (*vidioc_default) (struct file *file, void *fh,
329 int cmd, void *arg);
330
331
332#ifdef OBSOLETE_OWNER /* to be removed soon */
333/* obsolete -- fops->owner is used instead */
334struct module *owner;
335/* dev->driver_data will be used instead some day.
336 * Use the video_{get|set}_drvdata() helper functions,
337 * so the switch over will be transparent for you.
338 * Or use {pci|usb}_{get|set}_drvdata() directly. */
339void *priv;
340#endif 79#endif
341 80
342 /* for videodev.c intenal usage -- please don't touch */ 81 /* for videodev.c internal usage -- please don't touch */
343 int users; /* video_exclusive_{open|close} ... */ 82 int users; /* video_exclusive_{open|close} ... */
344 struct mutex lock; /* ... helper function uses these */ 83 struct mutex lock; /* ... helper function uses these */
345}; 84};
346 85
347/* Class-dev to video-device */ 86/* Class-dev to video-device */
348#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)
349 88
350/* Version 2 functions */ 89/* Version 2 functions */
351extern int video_register_device(struct video_device *vfd, int type, int nr); 90extern int video_register_device(struct video_device *vfd, int type, int nr);
352int video_register_device_index(struct video_device *vfd, int type, int nr, 91int video_register_device_index(struct video_device *vfd, int type, int nr,
353 int index); 92 int index);
354void video_unregister_device(struct video_device *); 93void video_unregister_device(struct video_device *);
355extern int video_ioctl2(struct inode *inode, struct file *file,
356 unsigned int cmd, unsigned long arg);
357 94
358/* helper functions to alloc / release struct video_device, the 95/* helper functions to alloc / release struct video_device, the
359 later can be used for video_device->release() */ 96 later can be used for video_device->release() */
360struct video_device *video_device_alloc(void); 97struct video_device *video_device_alloc(void);
361void video_device_release(struct video_device *vfd); 98void video_device_release(struct video_device *vfd);
362 99
363/* Include support for obsoleted stuff */ 100#ifdef OBSOLETE_DEVDATA /* to be removed soon */
364extern int video_usercopy(struct inode *inode, struct file *file,
365 unsigned int cmd, unsigned long arg,
366 int (*func)(struct inode *inode, struct file *file,
367 unsigned int cmd, void *arg));
368
369#ifdef CONFIG_VIDEO_V4L1_COMPAT
370#include <linux/mm.h>
371
372static inline int __must_check
373video_device_create_file(struct video_device *vfd,
374 struct device_attribute *attr)
375{
376 int ret = device_create_file(&vfd->class_dev, attr);
377 if (ret < 0)
378 printk(KERN_WARNING "%s error: %d\n", __func__, ret);
379 return ret;
380}
381static inline void
382video_device_remove_file(struct video_device *vfd,
383 struct device_attribute *attr)
384{
385 device_remove_file(&vfd->class_dev, attr);
386}
387
388#endif /* CONFIG_VIDEO_V4L1_COMPAT */
389
390#ifdef OBSOLETE_OWNER /* to be removed soon */
391/* helper functions to access driver private data. */ 101/* helper functions to access driver private data. */
392static inline void *video_get_drvdata(struct video_device *dev) 102static inline void *video_get_drvdata(struct video_device *dev)
393{ 103{
@@ -399,9 +109,6 @@ static inline void video_set_drvdata(struct video_device *dev, void *data)
399 dev->priv = data; 109 dev->priv = data;
400} 110}
401 111
402#endif
403
404#ifdef OBSOLETE_DEVDATA /* to be removed soon */
405/* Obsolete stuff - Still needed for radio devices and obsolete drivers */ 112/* Obsolete stuff - Still needed for radio devices and obsolete drivers */
406extern struct video_device* video_devdata(struct file*); 113extern struct video_device* video_devdata(struct file*);
407extern int video_exclusive_open(struct inode *inode, struct file *file); 114extern int video_exclusive_open(struct inode *inode, struct file *file);
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-05 11:08:28 -0500