diff options
Diffstat (limited to 'board/elm/led.c')
| -rw-r--r-- | board/elm/led.c | 199 |
1 files changed, 0 insertions, 199 deletions
diff --git a/board/elm/led.c b/board/elm/led.c deleted file mode 100644 index d73cc05c1b..0000000000 --- a/board/elm/led.c +++ /dev/null @@ -1,199 +0,0 @@ -/* Copyright 2016 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 and Power LED control for Elm Board. - */ - -#include "battery.h" -#include "charge_state.h" -#include "chipset.h" -#include "gpio.h" -#include "hooks.h" -#include "host_command.h" -#include "led_common.h" -#include "util.h" -#include "system.h" - -#define CRITICAL_LOW_BATTERY_PERMILLAGE 71 -#define LOW_BATTERY_PERMILLAGE 137 -#define FULL_BATTERY_PERMILLAGE 937 - -const enum ec_led_id supported_led_ids[] = { - EC_LED_ID_BATTERY_LED, - EC_LED_ID_POWER_LED -}; - -const int supported_led_ids_count = ARRAY_SIZE(supported_led_ids); - -enum led_color { - BAT_LED_BLUE = 0, - BAT_LED_ORANGE, - PWR_LED_BLUE, - PWR_LED_ORANGE, - LED_COLOR_COUNT /* Number of colors, not a color itself */ -}; - -static int bat_led_set(enum led_color color, int on) -{ - switch (color) { - case BAT_LED_BLUE: - gpio_set_level(GPIO_BAT_LED0, on); /* BAT_LED_BLUE */ - break; - case BAT_LED_ORANGE: - gpio_set_level(GPIO_BAT_LED1, on); /* BAT_LED_ORANGE */ - break; - case PWR_LED_BLUE: - gpio_set_level(GPIO_PWR_LED0, on); /* PWR_LED_BLUE */ - break; - case PWR_LED_ORANGE: - gpio_set_level(GPIO_PWR_LED1, on); /* PWR_LED_ORANGE */ - break; - default: - return EC_ERROR_UNKNOWN; - } - return EC_SUCCESS; -} - -void led_get_brightness_range(enum ec_led_id led_id, uint8_t *brightness_range) -{ - /* Ignoring led_id as both leds support the same colors */ - brightness_range[EC_LED_COLOR_BLUE] = 1; - brightness_range[EC_LED_COLOR_AMBER] = 1; -} - -int led_set_brightness(enum ec_led_id led_id, const uint8_t *brightness) -{ - if (EC_LED_ID_BATTERY_LED == led_id) { - if (brightness[EC_LED_COLOR_BLUE] != 0) { - bat_led_set(BAT_LED_BLUE, 1); - bat_led_set(BAT_LED_ORANGE, 0); - } else if (brightness[EC_LED_COLOR_AMBER] != 0) { - bat_led_set(BAT_LED_BLUE, 0); - bat_led_set(BAT_LED_ORANGE, 1); - } else { - bat_led_set(BAT_LED_BLUE, 0); - bat_led_set(BAT_LED_ORANGE, 0); - } - return EC_SUCCESS; - } else if (EC_LED_ID_POWER_LED == led_id) { - if (brightness[EC_LED_COLOR_BLUE] != 0) { - bat_led_set(PWR_LED_BLUE, 1); - bat_led_set(PWR_LED_ORANGE, 0); - } else if (brightness[EC_LED_COLOR_AMBER] != 0) { - bat_led_set(PWR_LED_BLUE, 0); - bat_led_set(PWR_LED_ORANGE, 1); - } else { - bat_led_set(PWR_LED_BLUE, 0); - bat_led_set(PWR_LED_ORANGE, 0); - } - return EC_SUCCESS; - } else { - return EC_ERROR_UNKNOWN; - } -} - -static unsigned blink_second; - -static void elm_led_set_power(void) -{ - /* - * PWR LED behavior: - * Power on: Blue ON - * Suspend: Orange in breeze mode ( 1 sec on/ 3 sec off) - * Power off: OFF - */ - if (chipset_in_state(CHIPSET_STATE_ANY_OFF)) { - bat_led_set(PWR_LED_BLUE, 0); - bat_led_set(PWR_LED_ORANGE, 0); - } else if (chipset_in_state(CHIPSET_STATE_ON)) { - bat_led_set(PWR_LED_BLUE, 1); - bat_led_set(PWR_LED_ORANGE, 0); - } else if (chipset_in_state(CHIPSET_STATE_SUSPEND)) { - bat_led_set(PWR_LED_BLUE, 0); - bat_led_set(PWR_LED_ORANGE, - (blink_second & 3) ? 0 : 1); - } -} - -static void elm_led_set_battery(void) -{ - /* - * BAT LED behavior: - * - Fully charged / normal idle: Blue ON - * - Charging: Orange ON - * - Battery discharging capacity<10%, Orange blink(1:3) - * < 3%, Orange blink(1:1) - * - Battery error: Orange blink(1:1) - * - Factory force idle: Blue 2 sec, Orange 2 sec - */ - uint32_t charge_flags = charge_get_flags(); - int remaining_capacity; - int full_charge_capacity; - int permillage; - - /* Make the percentage approximate to UI shown */ - remaining_capacity = *(int *)host_get_memmap(EC_MEMMAP_BATT_CAP); - full_charge_capacity = *(int *)host_get_memmap(EC_MEMMAP_BATT_LFCC); - permillage = !full_charge_capacity ? 0 : - (1000 * remaining_capacity) / full_charge_capacity; - - switch (charge_get_state()) { - case PWR_STATE_CHARGE: - if (permillage < FULL_BATTERY_PERMILLAGE) { - bat_led_set(BAT_LED_BLUE, 0); - bat_led_set(BAT_LED_ORANGE, 1); - } else { - bat_led_set(BAT_LED_BLUE, 1); - bat_led_set(BAT_LED_ORANGE, 0); - } - break; - case PWR_STATE_CHARGE_NEAR_FULL: - bat_led_set(BAT_LED_BLUE, 1); - bat_led_set(BAT_LED_ORANGE, 0); - break; - case PWR_STATE_DISCHARGE: - bat_led_set(BAT_LED_BLUE, 0); - if (!chipset_in_state(CHIPSET_STATE_ANY_OFF) && - permillage <= CRITICAL_LOW_BATTERY_PERMILLAGE) - bat_led_set(BAT_LED_ORANGE, - (blink_second & 1) ? 0 : 1); - else if (!chipset_in_state(CHIPSET_STATE_ANY_OFF) && - permillage <= LOW_BATTERY_PERMILLAGE) - bat_led_set(BAT_LED_ORANGE, - (blink_second & 3) ? 0 : 1); - else - bat_led_set(BAT_LED_ORANGE, 0); - break; - case PWR_STATE_ERROR: - bat_led_set(BAT_LED_BLUE, 0); - bat_led_set(BAT_LED_ORANGE, (blink_second & 1) ? 0 : 1); - break; - case PWR_STATE_IDLE: /* Ext. power connected in IDLE. */ - if (charge_flags & CHARGE_FLAG_FORCE_IDLE) { - bat_led_set(BAT_LED_BLUE, (blink_second & 2) ? 0 : 1); - bat_led_set(BAT_LED_ORANGE, (blink_second & 2) ? 1 : 0); - } else { - bat_led_set(BAT_LED_BLUE, 1); - bat_led_set(BAT_LED_ORANGE, 0); - } - break; - default: - /* Other states don't alter LED behavior */ - break; - } -} - -/** - * Called by hook task every 1 sec - */ -static void led_second(void) -{ - blink_second++; - - if (led_auto_control_is_enabled(EC_LED_ID_POWER_LED)) - elm_led_set_power(); - if (led_auto_control_is_enabled(EC_LED_ID_BATTERY_LED)) - elm_led_set_battery(); -} -DECLARE_HOOK(HOOK_SECOND, led_second, HOOK_PRIO_DEFAULT); |