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/* 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.
*
* Power and battery LED control for Volteer
*/
#include "common.h"
#include "ec_commands.h"
#include "led_common.h"
#include "led_pwm.h"
#include "pwm.h"
const enum ec_led_id supported_led_ids[] = {
EC_LED_ID_POWER_LED,
};
const int supported_led_ids_count = ARRAY_SIZE(supported_led_ids);
struct pwm_led led_color_map[] = {
/* Red, Green, Blue */
[EC_LED_COLOR_RED] = { 100, 0, 0 },
[EC_LED_COLOR_GREEN] = { 0, 100, 0 },
[EC_LED_COLOR_BLUE] = { 0, 0, 100 },
/* The green LED seems to be brighter than the others, so turn down
* green from its natural level for these secondary colors.
*/
[EC_LED_COLOR_YELLOW] = { 100, 70, 0 },
[EC_LED_COLOR_WHITE] = { 100, 70, 100 },
[EC_LED_COLOR_AMBER] = { 100, 20, 0 },
};
struct pwm_led pwm_leds[] = {
/* 2 RGB diffusers controlled by 1 set of 3 channels. */
[PWM_LED0] = {
.ch0 = PWM_CH_LED3_RED,
.ch1 = PWM_CH_LED2_GREEN,
.ch2 = PWM_CH_LED1_BLUE,
.enable = &pwm_enable,
.set_duty = &pwm_set_duty,
},
};
void led_get_brightness_range(enum ec_led_id led_id, uint8_t *brightness_range)
{
brightness_range[EC_LED_COLOR_RED] = 255;
brightness_range[EC_LED_COLOR_GREEN] = 255;
brightness_range[EC_LED_COLOR_BLUE] = 255;
}
int led_set_brightness(enum ec_led_id led_id, const uint8_t *brightness)
{
enum pwm_led_id pwm_id;
/* Convert ec_led_id to pwm_led_id. */
if (led_id == EC_LED_ID_POWER_LED)
pwm_id = PWM_LED0;
else
return EC_ERROR_UNKNOWN;
if (brightness[EC_LED_COLOR_RED])
set_pwm_led_color(pwm_id, EC_LED_COLOR_RED);
else if (brightness[EC_LED_COLOR_GREEN])
set_pwm_led_color(pwm_id, EC_LED_COLOR_GREEN);
else if (brightness[EC_LED_COLOR_BLUE])
set_pwm_led_color(pwm_id, EC_LED_COLOR_BLUE);
else if (brightness[EC_LED_COLOR_YELLOW])
set_pwm_led_color(pwm_id, EC_LED_COLOR_YELLOW);
else if (brightness[EC_LED_COLOR_WHITE])
set_pwm_led_color(pwm_id, EC_LED_COLOR_WHITE);
else if (brightness[EC_LED_COLOR_AMBER])
set_pwm_led_color(pwm_id, EC_LED_COLOR_AMBER);
else
/* Otherwise, the "color" is "off". */
set_pwm_led_color(pwm_id, -1);
return EC_SUCCESS;
}
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