#include <sys/param.h>
#include <sys/errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <err.h>
#include <errno.h>
#include <time.h>

#include "/sys/dev/iicbus/iic.h"

#include "tuner_ctrl.h"

int
main(int argc, char **argv)
{
	struct iiccmd cmd;
	float freq, ofreq;
	int fd;
	int i, c;
	uint8_t rv;

	if (argc != 2)
		errx(1, "Usage: %s <iic device>", argv[0]);
	if ( (fd = open(argv[1], O_RDWR)) < 0)
		err(1, "Error opening device: %s", argv[1]);

	if (ioctl(fd, I2CRSTCARD, &cmd) != 0)
		err(1, "Error reseting I2C bus");

	printf("000\n<CHANNELS>\n");
	ofreq = 0;
	c = 0;
	freq = SCAN_START;
	for (freq = SCAN_START; freq <= SCAN_END; freq += SCAN_FSTEP) {
		c = 0;
redo:
		rv = 0;
		if ( (i = set_channel(fd, freq, ofreq, &rv)) != 0) {
			if (i != EINVAL) {
			  if (++c >= 16)
				err(errno, "set_channel failure. code: %d", i);

			  /* BUS reset handled by tuner_ctrl.c */

			  goto redo;
			}
		}

		ofreq = freq;
		if ((rv & SCAN_LOCKVAL) == SCAN_LOCKVAL) {
			printf("%f\n", freq);
			freq += SCAN_SEPARATION - SCAN_FSTEP;
		}
		usleep(1000);
	}
	return 0;
}