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/* Copyright 2018 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "common.h"
#include "ec_commands.h"
#include "led_pwm.h"
#include "pwm.h"
#include "util.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);
/*
* We only have a blue and an amber LED, so setting any other colour results in
* both LEDs being off.
*/
struct pwm_led_color_map led_color_map[EC_LED_COLOR_COUNT] = {
/* White, Amber */
[EC_LED_COLOR_RED] = { 0, 0 }, [EC_LED_COLOR_GREEN] = { 0, 0 },
[EC_LED_COLOR_BLUE] = { 0, 0 }, [EC_LED_COLOR_YELLOW] = { 0, 0 },
[EC_LED_COLOR_WHITE] = { 100, 0 }, [EC_LED_COLOR_AMBER] = { 0, 100 },
};
/* One logical LED with amber and blue channels. */
struct pwm_led pwm_leds[CONFIG_LED_PWM_COUNT] = {
{
.ch0 = PWM_CH_LED1_WHITE,
.ch1 = PWM_CH_LED2_AMBER,
.ch2 = PWM_LED_NO_CHANNEL,
.enable = &pwm_enable,
.set_duty = &pwm_set_duty,
},
};
void led_get_brightness_range(enum ec_led_id led_id, uint8_t *brightness_range)
{
memset(brightness_range, '\0',
sizeof(*brightness_range) * EC_LED_COLOR_COUNT);
brightness_range[EC_LED_COLOR_WHITE] = 100;
brightness_range[EC_LED_COLOR_AMBER] = 100;
}
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_AMBER])
set_pwm_led_color(pwm_id, EC_LED_COLOR_AMBER);
else if (brightness[EC_LED_COLOR_WHITE])
set_pwm_led_color(pwm_id, EC_LED_COLOR_WHITE);
else
/* Otherwise, the "color" is "off". */
set_pwm_led_color(pwm_id, -1);
return EC_SUCCESS;
}
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