diff options
Diffstat (limited to 'board/lars/led.c')
| -rw-r--r-- | board/lars/led.c | 222 |
1 files changed, 0 insertions, 222 deletions
diff --git a/board/lars/led.c b/board/lars/led.c deleted file mode 100644 index 18a8d47d35..0000000000 --- a/board/lars/led.c +++ /dev/null @@ -1,222 +0,0 @@ -/* Copyright 2015 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 Lars. - */ -#include "battery.h" -#include "charge_state.h" -#include "chipset.h" -#include "ec_commands.h" -#include "gpio.h" -#include "hooks.h" -#include "host_command.h" -#include "led_common.h" -#include "util.h" - -/* LED signals */ -#define GPIO_BAT_LED_BLUE GPIO_CHARGE_LED1 -#define GPIO_BAT_LED_AMBER GPIO_CHARGE_LED2 -#define GPIO_PWR_LED_BLUE GPIO_PWRLED_L -#define GPIO_PWR_LED_AMBER GPIO_SUSLED_L - -#define CRITICAL_LOW_BATTERY_PERMILLAGE 71 -#define LOW_BATTERY_PERMILLAGE 137 -#define FULL_BATTERY_PERMILLAGE 937 -#define LED_TOTAL_4SECS_TICKS 16 -#define LED_TOTAL_2SECS_TICKS 8 -#define LED_ON_1SEC_TICKS 4 -#define LED_ON_2SECS_TICKS 8 - -/* LEDs are High Activity */ -#define TURN_ON 1 -#define TURN_OFF 0 - -enum led_color { - LED_OFF = 0, - LED_BLUE, - LED_AMBER, - LED_PINK, - - LED_COLOR_COUNT /* Number of colors, not a color itself */ -}; - -const enum ec_led_id supported_led_ids[] = { - EC_LED_ID_POWER_LED, EC_LED_ID_BATTERY_LED}; - -const int supported_led_ids_count = ARRAY_SIZE(supported_led_ids); - -static int lars_led_set_gpio(enum led_color color, - enum gpio_signal gpio_led_blue_l, - enum gpio_signal gpio_led_amber_l) -{ - switch (color) { - case LED_OFF: - gpio_set_level(gpio_led_blue_l, TURN_OFF); - gpio_set_level(gpio_led_amber_l, TURN_OFF); - break; - case LED_BLUE: - gpio_set_level(gpio_led_blue_l, TURN_ON); - gpio_set_level(gpio_led_amber_l, TURN_OFF); - break; - case LED_AMBER: - gpio_set_level(gpio_led_blue_l, TURN_OFF); - gpio_set_level(gpio_led_amber_l, TURN_ON); - break; - case LED_PINK: - gpio_set_level(gpio_led_blue_l, TURN_ON); - gpio_set_level(gpio_led_amber_l, TURN_ON); - break; - default: - return EC_ERROR_UNKNOWN; - } - - return EC_SUCCESS; -} - -static int lars_led_set_color_battery(enum led_color color) -{ - return lars_led_set_gpio(color, GPIO_BAT_LED_BLUE, GPIO_BAT_LED_AMBER); -} - -static int lars_led_set_color_power(enum led_color color) -{ - return lars_led_set_gpio(color, GPIO_PWR_LED_BLUE, GPIO_PWR_LED_AMBER); -} - -static int lars_led_set_color(enum ec_led_id led_id, enum led_color color) -{ - int rv; - - led_auto_control(led_id, 0); - - switch (led_id) { - case EC_LED_ID_BATTERY_LED: - rv = lars_led_set_color_battery(color); - break; - case EC_LED_ID_POWER_LED: - rv = lars_led_set_color_power(color); - break; - default: - return EC_ERROR_UNKNOWN; - } - - return rv; -} - -int led_set_brightness(enum ec_led_id led_id, const uint8_t *brightness) -{ - if (brightness[EC_LED_COLOR_BLUE] != 0 && - brightness[EC_LED_COLOR_YELLOW] != 0) - lars_led_set_color(led_id, LED_PINK); - else if (brightness[EC_LED_COLOR_BLUE] != 0) - lars_led_set_color(led_id, LED_BLUE); - else if (brightness[EC_LED_COLOR_YELLOW] != 0) - lars_led_set_color(led_id, LED_AMBER); - else - lars_led_set_color(led_id, LED_OFF); - 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_YELLOW] = 1; -} - -static void lars_led_set_power(void) -{ - static int power_ticks; - static int previous_state_suspend; - - power_ticks++; - if (chipset_in_state(CHIPSET_STATE_SUSPEND | CHIPSET_STATE_STANDBY)) { - /* Reset ticks if entering suspend so LED turns amber - * as soon as possible. */ - if (!previous_state_suspend) - power_ticks = 0; - /* Blink once every four seconds. */ - lars_led_set_color_power( - (power_ticks % LED_TOTAL_4SECS_TICKS < - LED_ON_1SEC_TICKS) ? LED_AMBER : LED_OFF); - - previous_state_suspend = 1; - return; - } - - previous_state_suspend = 0; - - if (chipset_in_state(CHIPSET_STATE_ANY_OFF)) - lars_led_set_color_power(LED_OFF); - else if (chipset_in_state(CHIPSET_STATE_ON)) - lars_led_set_color_power(LED_BLUE); -} - -static void lars_led_set_battery(void) -{ - static int battery_ticks; - uint32_t chflags = charge_get_flags(); - int remaining_capacity; - int full_charge_capacity; - int permillage; - - battery_ticks++; - 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: - /* Make the percentage approximate to UI shown */ - lars_led_set_color_battery(permillage < - FULL_BATTERY_PERMILLAGE ? LED_AMBER : LED_BLUE); - break; - case PWR_STATE_CHARGE_NEAR_FULL: - lars_led_set_color_battery(LED_BLUE); - break; - case PWR_STATE_DISCHARGE: - /* Less than 3%, blink one second every two seconds */ - if (!chipset_in_state(CHIPSET_STATE_ANY_OFF) && - permillage <= CRITICAL_LOW_BATTERY_PERMILLAGE) - lars_led_set_color_battery( - (battery_ticks % LED_TOTAL_2SECS_TICKS < - LED_ON_1SEC_TICKS) ? LED_AMBER : LED_OFF); - /* Less than 10%, blink one second every four seconds */ - else if (!chipset_in_state(CHIPSET_STATE_ANY_OFF) && - permillage <= LOW_BATTERY_PERMILLAGE) - lars_led_set_color_battery( - (battery_ticks % LED_TOTAL_4SECS_TICKS < - LED_ON_1SEC_TICKS) ? LED_AMBER : LED_OFF); - else - lars_led_set_color_battery(LED_OFF); - break; - case PWR_STATE_ERROR: - lars_led_set_color_battery( - (battery_ticks % LED_TOTAL_2SECS_TICKS < - LED_ON_1SEC_TICKS) ? LED_AMBER : LED_OFF); - break; - case PWR_STATE_IDLE: /* External power connected in IDLE. */ - if (chflags & CHARGE_FLAG_FORCE_IDLE) - lars_led_set_color_battery( - (battery_ticks % LED_TOTAL_4SECS_TICKS < - LED_ON_2SECS_TICKS) ? LED_BLUE : LED_AMBER); - else - lars_led_set_color_battery(LED_BLUE); - break; - default: - /* Other states don't alter LED behavior */ - break; - } -} - -/* Called by hook task every 250mSec */ -static void led_tick(void) -{ - if (led_auto_control_is_enabled(EC_LED_ID_POWER_LED)) - lars_led_set_power(); - if (led_auto_control_is_enabled(EC_LED_ID_BATTERY_LED)) - lars_led_set_battery(); -} -DECLARE_HOOK(HOOK_TICK, led_tick, HOOK_PRIO_DEFAULT); |