/* Copyright 2022 The ChromiumOS Authors
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 *
 * Battery LED control for nissa
 */
#include <stdint.h>

#include "charge_manager.h"
#include "common.h"
#include "compile_time_macros.h"
#include "ec_commands.h"
#include "gpio.h"
#include "led_common.h"
#include "led_onoff_states.h"
#include "pwm.h"
#include "util.h"

#define BAT_LED_ON_LVL 0
#define BAT_LED_OFF_LVL 1

#define PWR_LED_ON_LVL 1
#define PWR_LED_OFF_LVL 0

#define LED_SIDESEL_MB_PORT 0
#define LED_SIDESEL_DB_PORT 1

__override const int led_charge_lvl_1 = 5;
__override const int led_charge_lvl_2 = 95;

__override struct led_descriptor
	led_bat_state_table[LED_NUM_STATES][LED_NUM_PHASES] = {
		[STATE_CHARGING_LVL_1] = { { EC_LED_COLOR_AMBER,
					     LED_INDEFINITE } },
		[STATE_CHARGING_LVL_2] = { { EC_LED_COLOR_AMBER,
					     LED_INDEFINITE } },
		[STATE_CHARGING_FULL_CHARGE] = { { EC_LED_COLOR_WHITE,
						   LED_INDEFINITE } },
		[STATE_DISCHARGE_S0] = { { LED_OFF, LED_INDEFINITE } },
		[STATE_DISCHARGE_S0_BAT_LOW] = { { EC_LED_COLOR_AMBER,
						   1 * LED_ONE_SEC },
						 { LED_OFF, 1 * LED_ONE_SEC } },
		[STATE_DISCHARGE_S3] = { { LED_OFF, LED_INDEFINITE } },
		[STATE_DISCHARGE_S5] = { { LED_OFF, LED_INDEFINITE } },
		[STATE_BATTERY_ERROR] = { { EC_LED_COLOR_AMBER,
					    0.5 * LED_ONE_SEC },
					  { LED_OFF, 0.5 * LED_ONE_SEC } },
		[STATE_FACTORY_TEST] = { { EC_LED_COLOR_WHITE,
					   1 * LED_ONE_SEC },
					 { LED_OFF, 1 * LED_ONE_SEC } },
	};

__override const struct led_descriptor
	led_pwr_state_table[PWR_LED_NUM_STATES][LED_NUM_PHASES] = {
		[PWR_LED_STATE_ON] = { { EC_LED_COLOR_WHITE, LED_INDEFINITE } },
		[PWR_LED_STATE_SUSPEND_AC] = { { EC_LED_COLOR_WHITE,
						 1 * LED_ONE_SEC },
					       { LED_OFF, 1 * LED_ONE_SEC } },
		[PWR_LED_STATE_SUSPEND_NO_AC] = { { EC_LED_COLOR_WHITE,
						    1 * LED_ONE_SEC },
						  { LED_OFF,
						    1 * LED_ONE_SEC } },
		[PWR_LED_STATE_OFF] = { { LED_OFF, LED_INDEFINITE } },
	};

const enum ec_led_id supported_led_ids[] = {
	EC_LED_ID_BATTERY_LED,
	EC_LED_ID_POWER_LED,
};

const int supported_led_ids_count = ARRAY_SIZE(supported_led_ids);

__override void led_set_color_battery(enum ec_led_colors color)
{
	int port;

	/* There are four battery leds, LED1/LED2 are on MB side and
	 * LED3/LED4 are on DB side. All leds are OFF by default.
	 */
	int led1, led2, led3, led4;

	led1 = led2 = led3 = led4 = BAT_LED_OFF_LVL;

	/* Check which port is the charging port,
	 * and turn on the corresponding led.
	 */
	if (led_auto_control_is_enabled(EC_LED_ID_BATTERY_LED)) {
		port = charge_manager_get_active_charge_port();
		switch (port) {
		case LED_SIDESEL_MB_PORT:
			switch (color) {
			case EC_LED_COLOR_AMBER:
				led1 = BAT_LED_ON_LVL;
				break;
			case EC_LED_COLOR_WHITE:
				led2 = BAT_LED_ON_LVL;
				break;
			default: /* LED_OFF and other unsupported colors */
				break;
			}
			break;
		case LED_SIDESEL_DB_PORT:
			switch (color) {
			case EC_LED_COLOR_AMBER:
				led3 = BAT_LED_ON_LVL;
				break;
			case EC_LED_COLOR_WHITE:
				led4 = BAT_LED_ON_LVL;
				break;
			default: /* LED_OFF and other unsupported colors */
				break;
			}
			break;
		default: /* Unknown charging port */
			break;
		}
	} else {
		switch (color) {
		case EC_LED_COLOR_AMBER:
			led1 = BAT_LED_ON_LVL;
			led3 = BAT_LED_ON_LVL;
			break;
		case EC_LED_COLOR_WHITE:
			led2 = BAT_LED_ON_LVL;
			led4 = BAT_LED_ON_LVL;
			break;
		default: /* LED_OFF and other unsupported colors */
			break;
		}
	}

	gpio_pin_set_dt(GPIO_DT_FROM_NODELABEL(gpio_led_1_odl), led1);
	gpio_pin_set_dt(GPIO_DT_FROM_NODELABEL(gpio_led_2_odl), led2);
	gpio_pin_set_dt(GPIO_DT_FROM_NODELABEL(gpio_led_3_l), led3);
	gpio_pin_set_dt(GPIO_DT_FROM_NODELABEL(gpio_led_4_l), led4);
}

__override void led_set_color_power(enum ec_led_colors color)
{
	if (color == EC_LED_COLOR_WHITE)
		gpio_pin_set_dt(GPIO_DT_FROM_NODELABEL(gpio_power_led_gate),
				PWR_LED_ON_LVL);
	else
		/* LED_OFF and unsupported colors */
		gpio_pin_set_dt(GPIO_DT_FROM_NODELABEL(gpio_power_led_gate),
				PWR_LED_OFF_LVL);
}

void led_get_brightness_range(enum ec_led_id led_id, uint8_t *brightness_range)
{
	if (led_id == EC_LED_ID_BATTERY_LED) {
		brightness_range[EC_LED_COLOR_AMBER] = 1;
		brightness_range[EC_LED_COLOR_WHITE] = 1;
	} else if (led_id == EC_LED_ID_POWER_LED) {
		brightness_range[EC_LED_COLOR_WHITE] = 1;
	}
}

int led_set_brightness(enum ec_led_id led_id, const uint8_t *brightness)
{
	if (led_id == EC_LED_ID_BATTERY_LED) {
		led_auto_control(led_id, 0);
		if (brightness[EC_LED_COLOR_AMBER] != 0)
			led_set_color_battery(EC_LED_COLOR_AMBER);
		else if (brightness[EC_LED_COLOR_WHITE] != 0)
			led_set_color_battery(EC_LED_COLOR_WHITE);
		else if (brightness[LED_OFF] != 0)
			led_set_color_battery(LED_OFF);
		else {
			led_auto_control(led_id, 1);
			led_set_color_battery(LED_OFF);
		}
	} else if (led_id == EC_LED_ID_POWER_LED) {
		if (brightness[EC_LED_COLOR_WHITE] != 0)
			led_set_color_power(EC_LED_COLOR_WHITE);
		else
			led_set_color_power(LED_OFF);
	}

	return EC_SUCCESS;
}