blob: ea1aed304268beeefce3ebe11309f411cf1a8af4 [file] [log] [blame]
/** @file
* @brief Button Service sample
*/
/*
* Copyright (c) 2019 Marcio Montenegro <mtuxpe@gmail.com>
*
* SPDX-License-Identifier: Apache-2.0
*/
#include "led_svc.h"
#include <zephyr/kernel.h>
#include <zephyr/drivers/gpio.h>
#include <zephyr/logging/log.h>
LOG_MODULE_REGISTER(led_svc);
static const struct gpio_dt_spec led = GPIO_DT_SPEC_GET(DT_ALIAS(led0), gpios);
static bool led_state; /* Tracking state here supports GPIO expander-based LEDs. */
static bool led_ok;
void led_update(void)
{
if (!led_ok) {
return;
}
led_state = !led_state;
LOG_INF("Turn %s LED", led_state ? "on" : "off");
gpio_pin_set(led.port, led.pin, led_state);
}
int led_init(void)
{
int ret;
led_ok = gpio_is_ready_dt(&led);
if (!led_ok) {
LOG_ERR("Error: LED on GPIO %s pin %d is not ready",
led.port->name, led.pin);
return -ENODEV;
}
ret = gpio_pin_configure_dt(&led, GPIO_OUTPUT_INACTIVE);
if (ret < 0) {
LOG_ERR("Error %d: failed to configure GPIO %s pin %d",
ret, led.port->name, led.pin);
}
return ret;
}