diff options
Diffstat (limited to 'ANDROID_3.4.5/include/media/v4l2-dev.h')
| -rw-r--r-- | ANDROID_3.4.5/include/media/v4l2-dev.h | 206 |
1 files changed, 0 insertions, 206 deletions
diff --git a/ANDROID_3.4.5/include/media/v4l2-dev.h b/ANDROID_3.4.5/include/media/v4l2-dev.h deleted file mode 100644 index 96d22215..00000000 --- a/ANDROID_3.4.5/include/media/v4l2-dev.h +++ /dev/null @@ -1,206 +0,0 @@ -/* - * - * V 4 L 2 D R I V E R H E L P E R A P I - * - * Moved from videodev2.h - * - * Some commonly needed functions for drivers (v4l2-common.o module) - */ -#ifndef _V4L2_DEV_H -#define _V4L2_DEV_H - -#include <linux/poll.h> -#include <linux/fs.h> -#include <linux/device.h> -#include <linux/cdev.h> -#include <linux/mutex.h> -#include <linux/videodev2.h> - -#include <media/media-entity.h> - -#define VIDEO_MAJOR 81 - -#define VFL_TYPE_GRABBER 0 -#define VFL_TYPE_VBI 1 -#define VFL_TYPE_RADIO 2 -#define VFL_TYPE_SUBDEV 3 -#define VFL_TYPE_MAX 4 - -struct v4l2_ioctl_callbacks; -struct video_device; -struct v4l2_device; -struct v4l2_ctrl_handler; - -/* Flag to mark the video_device struct as registered. - Drivers can clear this flag if they want to block all future - device access. It is cleared by video_unregister_device. */ -#define V4L2_FL_REGISTERED (0) -/* file->private_data points to struct v4l2_fh */ -#define V4L2_FL_USES_V4L2_FH (1) -/* Use the prio field of v4l2_fh for core priority checking */ -#define V4L2_FL_USE_FH_PRIO (2) - -/* Priority helper functions */ - -struct v4l2_prio_state { - atomic_t prios[4]; -}; - -void v4l2_prio_init(struct v4l2_prio_state *global); -int v4l2_prio_change(struct v4l2_prio_state *global, enum v4l2_priority *local, - enum v4l2_priority new); -void v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local); -void v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority local); -enum v4l2_priority v4l2_prio_max(struct v4l2_prio_state *global); -int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority local); - - -struct v4l2_file_operations { - struct module *owner; - ssize_t (*read) (struct file *, char __user *, size_t, loff_t *); - ssize_t (*write) (struct file *, const char __user *, size_t, loff_t *); - unsigned int (*poll) (struct file *, struct poll_table_struct *); - long (*ioctl) (struct file *, unsigned int, unsigned long); - long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long); -#ifdef CONFIG_COMPAT - long (*compat_ioctl32) (struct file *, unsigned int, unsigned long); -#endif - unsigned long (*get_unmapped_area) (struct file *, unsigned long, - unsigned long, unsigned long, unsigned long); - int (*mmap) (struct file *, struct vm_area_struct *); - int (*open) (struct file *); - int (*release) (struct file *); -}; - -/* - * Newer version of video_device, handled by videodev2.c - * This version moves redundant code from video device code to - * the common handler - */ - -struct video_device -{ -#if defined(CONFIG_MEDIA_CONTROLLER) - struct media_entity entity; -#endif - /* device ops */ - const struct v4l2_file_operations *fops; - - /* sysfs */ - struct device dev; /* v4l device */ - struct cdev *cdev; /* character device */ - - /* Set either parent or v4l2_dev if your driver uses v4l2_device */ - struct device *parent; /* device parent */ - struct v4l2_device *v4l2_dev; /* v4l2_device parent */ - - /* Control handler associated with this device node. May be NULL. */ - struct v4l2_ctrl_handler *ctrl_handler; - - /* Priority state. If NULL, then v4l2_dev->prio will be used. */ - struct v4l2_prio_state *prio; - - /* device info */ - char name[32]; - int vfl_type; - /* 'minor' is set to -1 if the registration failed */ - int minor; - u16 num; - /* use bitops to set/clear/test flags */ - unsigned long flags; - /* attribute to differentiate multiple indices on one physical device */ - int index; - - /* V4L2 file handles */ - spinlock_t fh_lock; /* Lock for all v4l2_fhs */ - struct list_head fh_list; /* List of struct v4l2_fh */ - - int debug; /* Activates debug level*/ - - /* Video standard vars */ - v4l2_std_id tvnorms; /* Supported tv norms */ - v4l2_std_id current_norm; /* Current tvnorm */ - - /* callbacks */ - void (*release)(struct video_device *vdev); - - /* ioctl callbacks */ - const struct v4l2_ioctl_ops *ioctl_ops; - - /* serialization lock */ - struct mutex *lock; -}; - -#define media_entity_to_video_device(__e) \ - container_of(__e, struct video_device, entity) -/* dev to video-device */ -#define to_video_device(cd) container_of(cd, struct video_device, dev) - -int __must_check __video_register_device(struct video_device *vdev, int type, - int nr, int warn_if_nr_in_use, struct module *owner); - -/* Register video devices. Note that if video_register_device fails, - the release() callback of the video_device structure is *not* called, so - the caller is responsible for freeing any data. Usually that means that - you call video_device_release() on failure. */ -static inline int __must_check video_register_device(struct video_device *vdev, - int type, int nr) -{ - return __video_register_device(vdev, type, nr, 1, vdev->fops->owner); -} - -/* Same as video_register_device, but no warning is issued if the desired - device node number was already in use. */ -static inline int __must_check video_register_device_no_warn( - struct video_device *vdev, int type, int nr) -{ - return __video_register_device(vdev, type, nr, 0, vdev->fops->owner); -} - -/* Unregister video devices. Will do nothing if vdev == NULL or - video_is_registered() returns false. */ -void video_unregister_device(struct video_device *vdev); - -/* helper functions to alloc/release struct video_device, the - latter can also be used for video_device->release(). */ -struct video_device * __must_check video_device_alloc(void); - -/* this release function frees the vdev pointer */ -void video_device_release(struct video_device *vdev); - -/* this release function does nothing, use when the video_device is a - static global struct. Note that having a static video_device is - a dubious construction at best. */ -void video_device_release_empty(struct video_device *vdev); - -/* helper functions to access driver private data. */ -static inline void *video_get_drvdata(struct video_device *vdev) -{ - return dev_get_drvdata(&vdev->dev); -} - -static inline void video_set_drvdata(struct video_device *vdev, void *data) -{ - dev_set_drvdata(&vdev->dev, data); -} - -struct video_device *video_devdata(struct file *file); - -/* Combine video_get_drvdata and video_devdata as this is - used very often. */ -static inline void *video_drvdata(struct file *file) -{ - return video_get_drvdata(video_devdata(file)); -} - -static inline const char *video_device_node_name(struct video_device *vdev) -{ - return dev_name(&vdev->dev); -} - -static inline int video_is_registered(struct video_device *vdev) -{ - return test_bit(V4L2_FL_REGISTERED, &vdev->flags); -} - -#endif /* _V4L2_DEV_H */ |