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https://github.com/Telecominfraproject/OpenCellular.git
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e21f3401e1
Currently when in suspend the LED blinks white no matter what the state of the battery or charging is. This is very confusing for users who expect to be able to plug in a charger with the system in suspend and see that it starts to charge. Past platforms from this OEM have had two LEDs so this has not been an issue. BUG=chrome-os-partner:49151 BRANCH=glados TEST=put chell in suspend, plug in charger to see amber LED and then remove the charger and see that it blinks white again. Change-Id: I60e849d7b8b717fb568d7d5d64046621c1c34157 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/332625 Reviewed-by: Shawn N <shawnn@chromium.org>
146 lines
3.4 KiB
C
146 lines
3.4 KiB
C
/* Copyright 2015 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*
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* Power and battery LED control.
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*/
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#include "battery.h"
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#include "charge_state.h"
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#include "chipset.h"
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#include "ec_commands.h"
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#include "gpio.h"
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#include "hooks.h"
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#include "host_command.h"
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#include "led_common.h"
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#include "util.h"
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#define BAT_LED_ON 1
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#define BAT_LED_OFF 0
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const enum ec_led_id supported_led_ids[] = {
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EC_LED_ID_BATTERY_LED};
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const int supported_led_ids_count = ARRAY_SIZE(supported_led_ids);
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enum led_color {
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LED_OFF = 0,
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LED_AMBER,
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LED_WHITE,
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LED_COLOR_COUNT /* Number of colors, not a color itself */
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};
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static int bat_led_set_color(enum led_color color)
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{
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switch (color) {
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case LED_OFF:
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gpio_set_level(GPIO_BAT_LED_RED, BAT_LED_OFF);
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gpio_set_level(GPIO_BAT_LED_GREEN, BAT_LED_OFF);
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break;
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case LED_AMBER:
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gpio_set_level(GPIO_BAT_LED_RED, BAT_LED_ON);
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gpio_set_level(GPIO_BAT_LED_GREEN, BAT_LED_OFF);
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break;
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case LED_WHITE:
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gpio_set_level(GPIO_BAT_LED_RED, BAT_LED_OFF);
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gpio_set_level(GPIO_BAT_LED_GREEN, BAT_LED_ON);
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break;
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default:
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return EC_ERROR_UNKNOWN;
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}
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return EC_SUCCESS;
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}
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void led_get_brightness_range(enum ec_led_id led_id, uint8_t *brightness_range)
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{
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brightness_range[EC_LED_COLOR_YELLOW] = 1;
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brightness_range[EC_LED_COLOR_WHITE] = 1;
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}
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int led_set_brightness(enum ec_led_id led_id, const uint8_t *brightness)
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{
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switch (led_id) {
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case EC_LED_ID_BATTERY_LED:
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if (brightness[EC_LED_COLOR_WHITE] != 0)
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bat_led_set_color(LED_WHITE);
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else if (brightness[EC_LED_COLOR_YELLOW] != 0)
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bat_led_set_color(LED_AMBER);
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else
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bat_led_set_color(LED_OFF);
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break;
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default:
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break;
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}
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return EC_SUCCESS;
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}
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static void board_led_set_battery(void)
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{
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static int battery_ticks;
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uint32_t chflags = charge_get_flags();
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static int power_ticks;
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static int previous_state_suspend;
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battery_ticks++;
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power_ticks++;
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if (chipset_in_state(CHIPSET_STATE_SUSPEND | CHIPSET_STATE_STANDBY)) {
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/*
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* Reset ticks if entering suspend so LED turns white
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* as soon as possible.
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*/
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if (!previous_state_suspend)
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power_ticks = 0;
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if (charge_get_state() == PWR_STATE_CHARGE)
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/* Always indicate when charging, even in suspend. */
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bat_led_set_color(LED_AMBER);
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else
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/* Blink once every one second. */
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bat_led_set_color((power_ticks & 0x4) ?
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LED_WHITE : LED_OFF);
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previous_state_suspend = 1;
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return;
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}
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previous_state_suspend = 0;
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switch (charge_get_state()) {
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case PWR_STATE_CHARGE:
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bat_led_set_color(LED_AMBER);
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break;
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case PWR_STATE_DISCHARGE:
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if (charge_get_percent() < 12)
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bat_led_set_color(
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(battery_ticks & 0x4) ? LED_WHITE : LED_OFF);
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else
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bat_led_set_color(LED_OFF);
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break;
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case PWR_STATE_ERROR:
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bat_led_set_color((battery_ticks & 0x2) ? LED_WHITE : LED_OFF);
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break;
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case PWR_STATE_CHARGE_NEAR_FULL:
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bat_led_set_color(LED_WHITE);
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break;
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case PWR_STATE_IDLE: /* External power connected in IDLE */
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if (chflags & CHARGE_FLAG_FORCE_IDLE)
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bat_led_set_color(
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(battery_ticks & 0x4) ? LED_AMBER : LED_OFF);
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else
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bat_led_set_color(LED_WHITE);
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break;
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default:
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/* Other states don't alter LED behavior */
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break;
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}
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}
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/* Called by hook task every TICK */
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static void led_tick(void)
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{
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if (led_auto_control_is_enabled(EC_LED_ID_BATTERY_LED))
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board_led_set_battery();
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}
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DECLARE_HOOK(HOOK_TICK, led_tick, HOOK_PRIO_DEFAULT);
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