#pragma once

#include "link.h"

struct gpio_state {
  int chip_fd;
  int led_request_fd;
  int switch_request_fd;
};

int gpio_open(const char * path,
	      struct gpio_state * gpio_state);

void gpio_set_values(struct gpio_state * gpio_state, uint64_t bits);

uint64_t gpio_get_values(struct gpio_state * gpio_state);

void gpio_set_values_from_link_states(struct gpio_state * gpio_state,
				      struct link_state link_states[],
				      int link_states_length);