keyboard_drv.h

uboot底层驱动

#ifndef	DEYBOARD_DRV_H
#define	DEYBOARD_DRV_H

#define	RESET	0
#define	FUNC	1
#define	UP		2
#define	DOWN	3
#define	ENTER	4
#define	STOP	5

#define sendNum 3
#define readNum 2

#define readLine(index)	((*(volatile unsigned long *)PORTE_DATA & (0x1 << index)) >> index)
#define sendLine(index)	do{*(volatile unsigned long *)PORTE_DATA |= 0x1c; *(volatile unsigned long *)PORTE_DATA &= ~(0x4 << index);}while(0)

extern void init_Key(void);
extern int key_Finder(void);
void keyReset(void);

#endif	//DEYBOARD_DRV_H