67 lines
1.7 KiB
C
67 lines
1.7 KiB
C
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/* Copyright 2018 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "common.h"
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#include "ec_commands.h"
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#include "led_pwm.h"
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#include "util.h"
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const enum ec_led_id supported_led_ids[] = {
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EC_LED_ID_POWER_LED,
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};
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const int supported_led_ids_count = ARRAY_SIZE(supported_led_ids);
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/*
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* We only have a blue and an amber LED, so setting any other colour results in
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* both LEDs being off.
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*/
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struct pwm_led led_color_map[EC_LED_COLOR_COUNT] = {
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/* Amber, Blue */
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[EC_LED_COLOR_RED] = { 0, 0 },
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[EC_LED_COLOR_GREEN] = { 0, 0 },
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[EC_LED_COLOR_BLUE] = { 0, 100 },
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[EC_LED_COLOR_YELLOW] = { 0, 0 },
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[EC_LED_COLOR_WHITE] = { 0, 0 },
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[EC_LED_COLOR_AMBER] = { 100, 0 },
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};
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/* One logical LED with amber and blue channels. */
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struct pwm_led pwm_leds[CONFIG_LED_PWM_COUNT] = {
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{
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PWM_CH_LED1_AMBER,
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PWM_CH_LED2_BLUE,
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PWM_LED_NO_CHANNEL,
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},
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};
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void led_get_brightness_range(enum ec_led_id led_id, uint8_t *brightness_range)
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{
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memset(brightness_range, '\0',
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sizeof(*brightness_range) * EC_LED_COLOR_COUNT);
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brightness_range[EC_LED_COLOR_AMBER] = 100;
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brightness_range[EC_LED_COLOR_BLUE] = 100;
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}
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int led_set_brightness(enum ec_led_id led_id, const uint8_t *brightness)
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{
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enum pwm_led_id pwm_id;
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/* Convert ec_led_id to pwm_led_id. */
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if (led_id == EC_LED_ID_POWER_LED)
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pwm_id = PWM_LED0;
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else
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return EC_ERROR_UNKNOWN;
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if (brightness[EC_LED_COLOR_BLUE])
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set_pwm_led_color(pwm_id, EC_LED_COLOR_BLUE);
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else if (brightness[EC_LED_COLOR_AMBER])
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set_pwm_led_color(pwm_id, EC_LED_COLOR_AMBER);
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else
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/* Otherwise, the "color" is "off". */
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set_pwm_led_color(pwm_id, -1);
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return EC_SUCCESS;
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}
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