#include <stdlib.h>
#include <fcntl.h>
#include <signal.h>
#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>

#include <sys/types.h>
#include <sys/gpio.h>
#include <sys/ioctl.h>

#include "pins.h"

#define UP(N)   set_pin(N, 1)
#define DOWN(N) set_pin(N, 0)

#define HI(N)	set(N, 1)
#define LO(N)	set(N, 0)

int main(int argc, char *argv[]) {
	pins_init();
	config_pins();
	pincnt();

	sleep(1);

	pcfg(1, 6,  -1, INPUT | PULLDOWN, "ser");
	pcfg(1, 13,  0, OUTPUT, "clk");
	pcfg(1, 15,  0, OUTPUT, "shld");
	pcfg(0, 27,  0, OUTPUT, "clr");

	for(;;) {
	    HI("shld");
	    usleep(1);
	    LO("shld");
	    usleep(1);
	}
}