#include <sys/param.h>
#include <sys/mman.h>
#include <sys/ioctl.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>

#include "saa713x_ioctl.h"

int
main(int argc, char **argv)
{
	int fd;
	uint32_t v;
	char *dname;

	if (argc >= 2) 
		dname = argv[1];
	else
		dname = "/dev/saa0";

	if ( (fd = open(dname, O_RDWR)) == -1)
		err(errno, "Error opening video device %s", argv[1]);

	if (ioctl(fd, GETVIDEOSTS, &v) == -1)
               	err(errno, "IOCTL Error reading video status");

	printf("Status: 0x%x\n", v);

	v &= VIDEO_STS1_DCSTD_MASK;
	v >>= VIDEO_STS1_DCSTD_SHIFT;
	switch(v) {
		case 0:
			printf("No color signal detected\n");	
			break;
		case 1:
			printf("NTSC color signal detected\n");	
			break;
		case 2:
			printf("PAL color signal detected\n");	
			break;
		case 3:
			printf("SECAM color signal detected\n");	
			break;
	}

	return 0;
}