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/*
*
* 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_IOCTL_H
#define _V4L2_IOCTL_H
#include <linux/poll.h>
#include <linux/fs.h>
#include <linux/device.h>
#include <linux/mutex.h>
#include <linux/compiler.h> /* need __user */
#ifdef CONFIG_VIDEO_V4L1_COMPAT
#include <linux/videodev.h>
#else
#include <linux/videodev2.h>
#endif
/* v4l debugging and diagnostics */
/* Debug bitmask flags to be used on V4L2 */
#define V4L2_DEBUG_IOCTL 0x01
#define V4L2_DEBUG_IOCTL_ARG 0x02
/* Use this macro for non-I2C drivers. Pass the driver name as the first arg. */
#define v4l_print_ioctl(name, cmd) \
do { \
printk(KERN_DEBUG "%s: ", name); \
v4l_printk_ioctl(cmd); \
} while (0)
/* Use this macro in I2C drivers where 'client' is the struct i2c_client
pointer */
#define v4l_i2c_print_ioctl(client, cmd) \
do { \
v4l_client_printk(KERN_DEBUG, client, ""); \
v4l_printk_ioctl(cmd); \
} while (0)
/* Video standard functions */
extern const char *v4l2_norm_to_name(v4l2_std_id id);
extern int v4l2_video_std_construct(struct v4l2_standard *vs,
int id, const char *name);
/* Prints the ioctl in a human-readable format */
extern void v4l_printk_ioctl(unsigned int cmd);
/* names for fancy debug output */
extern const char *v4l2_field_names[];
extern const char *v4l2_type_names[];
/* Compatibility layer interface -- v4l1-compat module */
typedef int (*v4l2_kioctl)(struct inode *inode, struct file *file,
unsigned int cmd, void *arg);
#ifdef CONFIG_VIDEO_V4L1_COMPAT
int v4l_compat_translate_ioctl(struct inode *inode, struct file *file,
int cmd, void *arg, v4l2_kioctl driver_ioctl);
#else
#define v4l_compat_translate_ioctl(inode, file, cmd, arg, ioctl) (-EINVAL)
#endif
/* 32 Bits compatibility layer for 64 bits processors */
extern long v4l_compat_ioctl32(struct file *file, unsigned int cmd,
unsigned long arg);
extern int video_ioctl2(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg);
/* Include support for obsoleted stuff */
extern int video_usercopy(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg,
int (*func)(struct inode *inode, struct file *file,
unsigned int cmd, void *arg));
#endif /* _V4L2_IOCTL_H */
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