diff options
Diffstat (limited to 'board/terrador/led.c')
-rw-r--r-- | board/terrador/led.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/board/terrador/led.c b/board/terrador/led.c new file mode 100644 index 0000000000..735df935d2 --- /dev/null +++ b/board/terrador/led.c @@ -0,0 +1,103 @@ +/* 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 "charge_manager.h" +#include "common.h" +#include "ec_commands.h" +#include "hooks.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; +} + +/* Illuminates the LED on the side of the active charging port. If not charging, + * illuminates both LEDs. + */ +static void led_set_charge_port_tick(void) +{ + int port; + int side_select_duty; + + port = charge_manager_get_active_charge_port(); + switch (port) { + case 0: + side_select_duty = 100; + break; + case 1: + side_select_duty = 0; + break; + default: + side_select_duty = 50; + } + + pwm_set_duty(PWM_CH_LED4_SIDESEL, side_select_duty); +} +DECLARE_HOOK(HOOK_TICK, led_set_charge_port_tick, HOOK_PRIO_DEFAULT); |