/* Copyright 2021 The ChromiumOS Authors
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

/* Corsola baseboard-chipset specific configuration */

#include <zephyr/init.h>
#include <ap_power/ap_power.h>
#include <zephyr/drivers/gpio.h>
#include "gpio.h"

static void board_backlight_handler(struct ap_power_ev_callback *cb,
				    struct ap_power_ev_data data)
{
	int value;

	switch (data.event) {
	default:
		return;

	case AP_POWER_RESUME:
		/* Called on AP S3 -> S0 transition */
		value = 1;
		break;

	case AP_POWER_SUSPEND:
		/* Called on AP S0 -> S3 transition */
		value = 0;
		break;
	}
	gpio_pin_set_dt(GPIO_DT_FROM_NODELABEL(gpio_ec_bl_en_od), value);
}

static int install_backlight_handler(const struct device *unused)
{
	static struct ap_power_ev_callback cb;

	/*
	 * Add a callback for suspend/resume to
	 * control the keyboard backlight.
	 */
	ap_power_ev_init_callback(&cb, board_backlight_handler,
				  AP_POWER_RESUME | AP_POWER_SUSPEND);
	ap_power_ev_add_callback(&cb);
	return 0;
}

SYS_INIT(install_backlight_handler, APPLICATION, 1);