diff options
Diffstat (limited to 'board/scarlet/led.c')
-rw-r--r-- | board/scarlet/led.c | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/board/scarlet/led.c b/board/scarlet/led.c deleted file mode 100644 index d4c758cdcc..0000000000 --- a/board/scarlet/led.c +++ /dev/null @@ -1,144 +0,0 @@ -/* Copyright 2017 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. - * - * Battery LED control for Scarlet board. - */ - -#include "battery.h" -#include "charge_state.h" -#include "chipset.h" -#include "hooks.h" -#include "led_common.h" -#include "lid_switch.h" -#include "pwm.h" -#include "util.h" - -/* LEDs on Scarlet are active low. */ -#define BAT_LED_ON 0 -#define BAT_LED_OFF 1 - -const enum ec_led_id supported_led_ids[] = { EC_LED_ID_BATTERY_LED }; - -const int supported_led_ids_count = ARRAY_SIZE(supported_led_ids); - -enum led_color { - LED_OFF = 0, - LED_RED, - LED_AMBER, - LED_GREEN, - LED_COLOR_COUNT /* Number of colors, not a color itself */ -}; - -static int bat_led_set_color(enum led_color color) -{ - switch (color) { - case LED_OFF: - gpio_set_level(GPIO_BAT_LED_GREEN, BAT_LED_OFF); - gpio_set_level(GPIO_BAT_LED_RED, BAT_LED_OFF); - break; - case LED_RED: - gpio_set_level(GPIO_BAT_LED_GREEN, BAT_LED_OFF); - gpio_set_level(GPIO_BAT_LED_RED, BAT_LED_ON); - break; - case LED_AMBER: - gpio_set_level(GPIO_BAT_LED_GREEN, BAT_LED_ON); - gpio_set_level(GPIO_BAT_LED_RED, BAT_LED_ON); - break; - case LED_GREEN: - gpio_set_level(GPIO_BAT_LED_GREEN, BAT_LED_ON); - gpio_set_level(GPIO_BAT_LED_RED, BAT_LED_OFF); - break; - default: - return EC_ERROR_UNKNOWN; - } - return EC_SUCCESS; -} - -static void scarlet_led_set_battery(void) -{ - static int battery_second; - uint32_t chflags = charge_get_flags(); - - battery_second++; - - switch (charge_get_state()) { - case PWR_STATE_CHARGE: - bat_led_set_color(LED_AMBER); - break; - case PWR_STATE_DISCHARGE: - if (charge_get_percent() < 3) - bat_led_set_color((battery_second & 1) - ? LED_OFF : LED_AMBER); - else if (charge_get_percent() < 10) - bat_led_set_color((battery_second & 3) - ? LED_OFF : LED_AMBER); - else if (charge_get_percent() >= BATTERY_LEVEL_NEAR_FULL && - (chflags & CHARGE_FLAG_EXTERNAL_POWER)) - bat_led_set_color(LED_GREEN); - else - bat_led_set_color(LED_OFF); - break; - case PWR_STATE_ERROR: - bat_led_set_color(LED_RED); - break; - case PWR_STATE_CHARGE_NEAR_FULL: - bat_led_set_color(LED_GREEN); - break; - case PWR_STATE_IDLE: /* External power connected in IDLE. */ - if (chflags & CHARGE_FLAG_FORCE_IDLE) - bat_led_set_color( - (battery_second & 0x2) ? LED_GREEN : LED_AMBER); - else - bat_led_set_color(LED_GREEN); - break; - default: - /* Other states don't alter LED behavior */ - break; - } -} - -void led_get_brightness_range(enum ec_led_id led_id, uint8_t *brightness_range) -{ - if (led_id == EC_LED_ID_BATTERY_LED) { - brightness_range[EC_LED_COLOR_RED] = 1; - brightness_range[EC_LED_COLOR_GREEN] = 1; - } -} - -int led_set_brightness(enum ec_led_id led_id, const uint8_t *brightness) -{ - if (led_id == EC_LED_ID_BATTERY_LED) { - gpio_set_level(GPIO_BAT_LED_RED, - (brightness[EC_LED_COLOR_RED] != 0) ? - BAT_LED_ON : BAT_LED_OFF); - gpio_set_level(GPIO_BAT_LED_GREEN, - (brightness[EC_LED_COLOR_GREEN] != 0) ? - BAT_LED_ON : BAT_LED_OFF); - return EC_SUCCESS; - } - return EC_ERROR_UNKNOWN; -} - -/* Called by hook task every 1 sec */ -static void led_second(void) -{ - if (led_auto_control_is_enabled(EC_LED_ID_BATTERY_LED)) - scarlet_led_set_battery(); -} -DECLARE_HOOK(HOOK_SECOND, led_second, HOOK_PRIO_DEFAULT); - -void led_control(enum ec_led_id led_id, enum ec_led_state state) -{ - if ((led_id != EC_LED_ID_RECOVERY_HW_REINIT_LED) && - (led_id != EC_LED_ID_SYSRQ_DEBUG_LED)) - return; - - if (state == LED_STATE_RESET) { - led_auto_control(EC_LED_ID_BATTERY_LED, 1); - return; - } - - led_auto_control(EC_LED_ID_BATTERY_LED, 0); - bat_led_set_color(state ? LED_AMBER : LED_OFF); -} |