board/aleena/led.c

/* Copyright 2018 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 "common.h"
#include "led_onoff_states.h"
#include "led_common.h"
#include "gpio.h"
#include "hooks.h"
#include "console.h"

#define CPRINTS(format, args...) cprints(CC_HOOK, format, ## args)

#define LED_OFF_LVL	1
#define LED_ON_LVL	0

const int led_charge_lvl_1;

const int led_charge_lvl_2 = 100;

/*
 *	board_id	others	5, 6
 *	led1		Amber	Blue
 *	led2		Blue	Amber
 */
static enum gpio_signal led_amber = GPIO_BAT_LED_1_L;
static enum gpio_signal led_blue = GPIO_BAT_LED_2_L;

/* Note there is only LED for charge / power */
struct led_descriptor
			led_bat_state_table[LED_NUM_STATES][LED_NUM_PHASES] = {
	[STATE_CHARGING_LVL_2]	     = {{EC_LED_COLOR_AMBER, LED_INDEFINITE} },
	[STATE_CHARGING_FULL_CHARGE] = {{EC_LED_COLOR_BLUE,  LED_INDEFINITE} },
	[STATE_DISCHARGE_S0]	     = {{EC_LED_COLOR_BLUE,  LED_INDEFINITE} },
	[STATE_DISCHARGE_S3]	     = {{EC_LED_COLOR_AMBER, 1 * LED_ONE_SEC},
					{LED_OFF,            3 * LED_ONE_SEC} },
	[STATE_DISCHARGE_S5]         = {{LED_OFF,            LED_INDEFINITE} },
	[STATE_BATTERY_ERROR]        = {{EC_LED_COLOR_AMBER, 1 * LED_ONE_SEC},
					{LED_OFF,            1 * LED_ONE_SEC} },
	[STATE_FACTORY_TEST]         = {{EC_LED_COLOR_BLUE,  2 * LED_ONE_SEC},
					{EC_LED_COLOR_AMBER, 2 * LED_ONE_SEC} },
};

const enum ec_led_id supported_led_ids[] = { EC_LED_ID_BATTERY_LED };

const int supported_led_ids_count = ARRAY_SIZE(supported_led_ids);

static void board_led_init(void)
{
	int board_id =
		(gpio_get_level(GPIO_BOARD_VERSION3) << 2) |
		(gpio_get_level(GPIO_BOARD_VERSION2) << 1) |
		(gpio_get_level(GPIO_BOARD_VERSION1) << 0);

	CPRINTS("board_id=%d", board_id);

	if ((board_id == 5) || (board_id == 6)) {
		led_amber = GPIO_BAT_LED_2_L;
		led_blue = GPIO_BAT_LED_1_L;
		CPRINTS("LED: switch LED");
	}

}
DECLARE_HOOK(HOOK_INIT, board_led_init, HOOK_PRIO_DEFAULT);

void led_set_color_battery(enum ec_led_colors color)
{
	switch (color) {
	case EC_LED_COLOR_BLUE:
		gpio_set_level(led_blue, LED_ON_LVL);
		gpio_set_level(led_amber, LED_OFF_LVL);
		break;
	case EC_LED_COLOR_AMBER:
		gpio_set_level(led_blue, LED_OFF_LVL);
		gpio_set_level(led_amber, LED_ON_LVL);
		break;
	default: /* LED_OFF and other unsupported colors */
		gpio_set_level(led_blue, LED_OFF_LVL);
		gpio_set_level(led_amber, LED_OFF_LVL);
		break;
	}
}

void led_get_brightness_range(enum ec_led_id led_id, uint8_t *brightness_range)
{
	brightness_range[EC_LED_COLOR_BLUE] = 1;
	brightness_range[EC_LED_COLOR_AMBER] = 1;
}

int led_set_brightness(enum ec_led_id led_id, const uint8_t *brightness)
{
	if (brightness[EC_LED_COLOR_BLUE] != 0)
		led_set_color_battery(EC_LED_COLOR_BLUE);
	else if (brightness[EC_LED_COLOR_AMBER] != 0)
		led_set_color_battery(EC_LED_COLOR_AMBER);
	else
		led_set_color_battery(LED_OFF);

	return EC_SUCCESS;
}