#include "gpio.h"

#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <linux/ioctl.h>

// Function for User to write to the Kernel
ioctl_set(int fd, char* buf) {
	int ret_val;
	// The ioctl command goes to the switch statement in gpio.c
	ret_val = ioctl(fd, IOC_SET, buf);

	if (ret_val < 0) {
		printf("ioctl_set failed:%d\n", ret_val);
		exit(-1);
	}
}

// Function for User to read from the Kernel
ioctl_get(int fd) {
	int ret_val;
	char buf[100];
	// The ioctl command goes to the switch statement in gpio.c
	ret_val = ioctl(fd, IOC_GET, buf);

	if (ret_val < 0) {
		printf("ioctl_get failed:%d\n", ret_val);
		exit(-1);
	}
}

// Function to toggle the pin
ioctl_toggle(int fd) {
	int ret_val;
	char buf[100];
	// The ioctl command goes to the switch statement in gpio.c
	ret_val = ioctl(fd, IOC_TOGGLE, buf);

	if (ret_val < 0) {
		printf("ioctl_toggle failed:%d\n", ret_val);
		exit(-1);
	}
}


main()
{
	char *buf = "test\n";
	int fd;
	/*
	Make sure to 'mknod /dev/gpio c 60 0'
	Where c is for char device
	60 is major number
	0 is minor number
	may also need to 'chmod 666 /dev/gpio'
	or 'chmod 664 /dev/gpio'
	*/
	fd = open("/dev/gpio", O_RDWR | O_SYNC);
	if (fd < 0) {
		printf("Can't open device file\n");
		exit(-1);
	}

	// calls the Toggle function above
	ioctl_toggle(fd);

	close(fd);
}