shut_keytest.c

arm2440,LINUX下的普通IO驱动及应用程序

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include "shut_key.h"


/***********以下定义为飞凌的开发板上****************/
#define LED0    GPIO_SET_PINF3
#define LED1    GPIO_SET_PINF4
#define LED2    GPIO_SET_PINF5
#define LED3    GPIO_SET_PINF6
#define LED0_OPEN   ioctl(fd,LED0,1);
#define LED0_OFF      ioctl(fd,LED0,0);
#define LED1_OPEN   ioctl(fd,LED1,1);
#define LED1_OFF      ioctl(fd,LED1,0);
#define LED2_OPEN   ioctl(fd,LED2,1);
#define LED2_OFF      ioctl(fd,LED2,0);
#define LED3_OPEN   ioctl(fd,LED3,1);
#define LED3_OFF      ioctl(fd,LED3,0);

void Set_right_playkey(int fd)
{
	//ioctl(fd,GPIO_SET_PINB7,1);
	//ioctl(fd,GPIO_SET_PINF3,1);
	ioctl(fd,LED0,1);
	LED2_OPEN;
}

void Set_left_playkey(int fd)
{
	//ioctl(fd,GPIO_SET_PINB10,1);
	//ioctl(fd,GPIO_SET_PINF4,1);
	ioctl(fd,LED1,1);
	LED3_OPEN;
}

void Clr_right_playkey(int fd)
{
	//ioctl(fd,GPIO_SET_PINB8,0);	
	//ioctl(fd,GPIO_SET_PINF3,0);
	ioctl(fd,GPIO_SET_PINF5,0);
	ioctl(fd,GPIO_SET_PINF6,0);
}

void Clr_left_playkey(int fd)
{
	//ioctl(fd,GPIO_SET_PINB9,0);
	//ioctl(fd,GPIO_SET_PINF4,0);
	LED0_OFF;
	LED1_OFF;
}

int main()
{
	int key_fd;
	key_fd = open("/dev/shut_key", O_RDWR);
	if(key_fd > 0)
	{
		printf("shut_key open ok\n");
	//	exit(0);
	}
	else{
		printf("shut_key open error \n");
	}

	while(1)
	{
		Set_right_playkey(key_fd);
		Set_left_playkey(key_fd);	
		printf("Hight Level\n");
		sleep(1);

		Clr_left_playkey(key_fd);
		Clr_right_playkey(key_fd);
		printf("Low Level\n");
		sleep(1);
	}
	return 0;
}