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/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.settingslib.fuelgauge;
import static android.os.BatteryManager.BATTERY_HEALTH_OVERHEAT;
import static android.os.BatteryManager.BATTERY_HEALTH_UNKNOWN;
import static android.os.BatteryManager.BATTERY_STATUS_FULL;
import static android.os.BatteryManager.BATTERY_STATUS_UNKNOWN;
import static android.os.BatteryManager.EXTRA_HEALTH;
import static android.os.BatteryManager.EXTRA_LEVEL;
import static android.os.BatteryManager.EXTRA_MAX_CHARGING_CURRENT;
import static android.os.BatteryManager.EXTRA_MAX_CHARGING_VOLTAGE;
import static android.os.BatteryManager.EXTRA_PLUGGED;
import static android.os.BatteryManager.EXTRA_PRESENT;
import static android.os.BatteryManager.EXTRA_STATUS;
import static android.os.BatteryManager.EXTRA_OEM_FAST_CHARGER;
import android.content.Context;
import android.content.Intent;
import android.os.BatteryManager;
import com.android.settingslib.R;
/**
* Stores and computes some battery information.
*/
public class BatteryStatus {
private static final int LOW_BATTERY_THRESHOLD = 20;
private static final int DEFAULT_CHARGING_VOLTAGE_MICRO_VOLT = 5000000;
public static final int CHARGING_UNKNOWN = -1;
public static final int CHARGING_SLOWLY = 0;
public static final int CHARGING_REGULAR = 1;
public static final int CHARGING_FAST = 2;
public final int status;
public final int level;
public final int plugged;
public final int health;
public final int maxChargingWattage;
public final boolean oemFastChargeStatus;
public final boolean present;
public BatteryStatus(int status, int level, int plugged, int health,
int maxChargingWattage, boolean oemFastChargeStatus, boolean present) {
this.status = status;
this.level = level;
this.plugged = plugged;
this.health = health;
this.maxChargingWattage = maxChargingWattage;
this.oemFastChargeStatus = oemFastChargeStatus;
this.present = present;
}
public BatteryStatus(Intent batteryChangedIntent) {
status = batteryChangedIntent.getIntExtra(EXTRA_STATUS, BATTERY_STATUS_UNKNOWN);
plugged = batteryChangedIntent.getIntExtra(EXTRA_PLUGGED, 0);
level = batteryChangedIntent.getIntExtra(EXTRA_LEVEL, 0);
health = batteryChangedIntent.getIntExtra(EXTRA_HEALTH, BATTERY_HEALTH_UNKNOWN);
oemFastChargeStatus = batteryChangedIntent.getBooleanExtra(EXTRA_OEM_FAST_CHARGER, false);
present = batteryChangedIntent.getBooleanExtra(EXTRA_PRESENT, true);
final int maxChargingMicroAmp = batteryChangedIntent.getIntExtra(EXTRA_MAX_CHARGING_CURRENT,
-1);
int maxChargingMicroVolt = batteryChangedIntent.getIntExtra(EXTRA_MAX_CHARGING_VOLTAGE, -1);
if (maxChargingMicroVolt <= 0) {
maxChargingMicroVolt = DEFAULT_CHARGING_VOLTAGE_MICRO_VOLT;
}
if (maxChargingMicroAmp > 0) {
// Calculating muW = muA * muV / (10^6 mu^2 / mu); splitting up the divisor
// to maintain precision equally on both factors.
maxChargingWattage = (maxChargingMicroAmp / 1000)
* (maxChargingMicroVolt / 1000);
} else {
maxChargingWattage = -1;
}
}
/**
* Determine whether the device is plugged in (USB, power, or wireless).
*
* @return true if the device is plugged in.
*/
public boolean isPluggedIn() {
return plugged == BatteryManager.BATTERY_PLUGGED_AC
|| plugged == BatteryManager.BATTERY_PLUGGED_USB
|| plugged == BatteryManager.BATTERY_PLUGGED_WIRELESS;
}
/**
* Determine whether the device is plugged in (USB, power).
*
* @return true if the device is plugged in wired (as opposed to wireless)
*/
public boolean isPluggedInWired() {
return plugged == BatteryManager.BATTERY_PLUGGED_AC
|| plugged == BatteryManager.BATTERY_PLUGGED_USB;
}
/**
* Determine whether the device is plugged in wireless.
*
* @return true if the device is plugged in wireless
*/
public boolean isPluggedInWireless() {
return plugged == BatteryManager.BATTERY_PLUGGED_WIRELESS;
}
/**
* Whether or not the device is charged. Note that some devices never return 100% for
* battery level, so this allows either battery level or status to determine if the
* battery is charged.
*
* @return true if the device is charged
*/
public boolean isCharged() {
return status == BATTERY_STATUS_FULL || level >= 100;
}
/**
* Whether battery is low and needs to be charged.
*
* @return true if battery is low
*/
public boolean isBatteryLow() {
return level < LOW_BATTERY_THRESHOLD;
}
/**
* Whether battery is overheated.
*
* @return true if battery is overheated
*/
public boolean isOverheated() {
return health == BATTERY_HEALTH_OVERHEAT;
}
/**
* Return current chargin speed is fast, slow or normal.
*
* @return the charing speed
*/
public final int getChargingSpeed(Context context) {
if (oemFastChargeStatus) {
return CHARGING_FAST;
}
final int slowThreshold = context.getResources().getInteger(
R.integer.config_chargingSlowlyThreshold);
final int fastThreshold = context.getResources().getInteger(
R.integer.config_chargingFastThreshold);
return maxChargingWattage <= 0 ? CHARGING_UNKNOWN :
maxChargingWattage < slowThreshold ? CHARGING_SLOWLY :
maxChargingWattage > fastThreshold ? CHARGING_FAST :
CHARGING_REGULAR;
}
@Override
public String toString() {
return "BatteryStatus{status=" + status + ",level=" + level + ",plugged=" + plugged
+ ",health=" + health + ",maxChargingWattage=" + maxChargingWattage + "}";
}
}
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