projects/chameleon/src/led.c

/* SPDX-License-Identifier: BSD-3-Clause
 *
 * Copyright 2020 The Chromium OS Authors. All rights reserved.
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include <zephyr.h>
#include <device.h>
#include <devicetree.h>
#include <drivers/gpio.h>
#include <shell/shell.h>
#include <sys/printk.h>
#include "gpio_signal.h"
#include "led.h"

DECLARE_GPIOS_FOR(leds);

int led_powergood(bool turn_on)
{
	int ret;

	ret = gpio_pin_set(GPIO_LOOKUP(leds, power_good_led), turn_on ? 1 : 0);
	if (ret < 0) {
		printk("gpio_pin_configure failed, ret = %d\n", ret);
		return ret;
	}

	return 0;
}

/**
 * @brief Turn POWERGOOD LED on
 */
static int cmd_led_on(const struct shell *shell, size_t argc, char **argv)
{
	ARG_UNUSED(shell);
	ARG_UNUSED(argc);
	ARG_UNUSED(argv);

	led_powergood(true);
	return 0;
}

/**
 * @brief Turn POWERGOOD LED off
 */
static int cmd_led_off(const struct shell *shell, size_t argc, char **argv)
{
	ARG_UNUSED(shell);
	ARG_UNUSED(argc);
	ARG_UNUSED(argv);

	led_powergood(false);
	return 0;
}
SHELL_STATIC_SUBCMD_SET_CREATE(led_cmds,
	SHELL_CMD(on, NULL, "turn LED on", cmd_led_on),
	SHELL_CMD(off, NULL, "turn LED off", cmd_led_off),
	SHELL_SUBCMD_SET_END /* Array terminated. */
);
SHELL_CMD_REGISTER(led, &led_cmds, "LED commands", NULL);