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#ifndef _DEMOD_H_
#define _DEMOD_H_
#include <linux/ioctl.h>
/*
* demod_rw ioctl() argument to R/W 32 bit value
* from demod intrnal registers
*/
struct demod_rw {
unsigned int addr;
unsigned int value;
int dir;/* 1 -read;0 - write */
};
/*
* demod_set_region ioctl() argument
* sets base for read/write operations
*/
struct demod_set_region {
unsigned int base;
int dir; /* 1 -read;0 - write */
};
/*
* defines for IOCTL functions
* read Documentation/ioctl-number.txt
* some random number to avoid coinciding with other ioctl numbers
*/
#define DEMOD_IOCTL_BASE 0xBB
#define DEMOD_IOCTL_RW \
_IOWR(DEMOD_IOCTL_BASE, 0, struct demod_rw)
#define DEMOD_IOCTL_SET_REGION \
_IOW(DEMOD_IOCTL_BASE, 1, struct demod_set_region)
#define DEMOD_IOCTL_RESET \
_IO(DEMOD_IOCTL_BASE, 2)
#endif /* _DEMOD_H_ */
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