diff options
Diffstat (limited to 'board/delan/led.c')
-rw-r--r-- | board/delan/led.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/board/delan/led.c b/board/delan/led.c new file mode 100644 index 0000000000..fc6f427cd2 --- /dev/null +++ b/board/delan/led.c @@ -0,0 +1,66 @@ +/* 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 "ec_commands.h" +#include "led_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 led_color_map[EC_LED_COLOR_COUNT] = { + /* Amber, Blue */ + [EC_LED_COLOR_RED] = { 0, 0 }, + [EC_LED_COLOR_GREEN] = { 0, 0 }, + [EC_LED_COLOR_BLUE] = { 0, 100 }, + [EC_LED_COLOR_YELLOW] = { 0, 0 }, + [EC_LED_COLOR_WHITE] = { 0, 0 }, + [EC_LED_COLOR_AMBER] = { 100, 0 }, +}; + +/* One logical LED with amber and blue channels. */ +struct pwm_led pwm_leds[CONFIG_LED_PWM_COUNT] = { + { + PWM_CH_LED1_AMBER, + PWM_CH_LED2_BLUE, + PWM_LED_NO_CHANNEL, + }, +}; + +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_AMBER] = 100; + brightness_range[EC_LED_COLOR_BLUE] = 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_BLUE]) + set_pwm_led_color(pwm_id, EC_LED_COLOR_BLUE); + 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; +} |