diff options
Diffstat (limited to 'board/nocturne/led.c')
-rw-r--r-- | board/nocturne/led.c | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/board/nocturne/led.c b/board/nocturne/led.c new file mode 100644 index 0000000000..68b19f0bbe --- /dev/null +++ b/board/nocturne/led.c @@ -0,0 +1,81 @@ +/* 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. + */ + +/* Nocturne specific PWM LED settings. */ + +#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_LEFT_LED, + EC_LED_ID_RIGHT_LED, +}; +const int supported_led_ids_count = ARRAY_SIZE(supported_led_ids); + +/* We may not be using the blue channel long term. */ +struct pwm_led led_color_map[EC_LED_COLOR_COUNT] = { + /* Red, Green, Blue */ + [EC_LED_COLOR_RED] = { 1, 0, 0 }, + [EC_LED_COLOR_GREEN] = { 0, 1, 0 }, + [EC_LED_COLOR_BLUE] = { 0, 0, 0 }, + [EC_LED_COLOR_YELLOW] = { 1, 1, 0 }, + [EC_LED_COLOR_WHITE] = { 0, 0, 0 }, + [EC_LED_COLOR_AMBER] = { 15, 1, 0 }, +}; + +/* Two tri-color LEDs with red, green, and blue channels. */ +struct pwm_led pwm_leds[CONFIG_LED_PWM_COUNT] = { + { + PWM_CH_DB0_LED_RED, + PWM_CH_DB0_LED_GREEN, + PWM_CH_DB0_LED_BLUE, + }, + + { + PWM_CH_DB1_LED_RED, + PWM_CH_DB1_LED_GREEN, + PWM_CH_DB1_LED_BLUE, + }, +}; + +void led_get_brightness_range(enum ec_led_id led_id, uint8_t *brightness_range) +{ + brightness_range[EC_LED_COLOR_RED] = 100; + brightness_range[EC_LED_COLOR_GREEN] = 100; + brightness_range[EC_LED_COLOR_YELLOW] = 100; + brightness_range[EC_LED_COLOR_AMBER] = 100; + brightness_range[EC_LED_COLOR_BLUE] = 0; + brightness_range[EC_LED_COLOR_WHITE] = 0; +} + +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_LEFT_LED) + pwm_id = PWM_LED0; + else if (led_id == EC_LED_ID_RIGHT_LED) + pwm_id = PWM_LED1; + 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_YELLOW]) + set_pwm_led_color(pwm_id, EC_LED_COLOR_YELLOW); + 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; +} |