/*
* Copyright (C) 2006 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.server;
import android.database.ContentObserver;
import android.os.BatteryStats;
import com.android.internal.app.IBatteryStats;
import com.android.server.am.BatteryStatsService;
import com.android.server.lights.Light;
import com.android.server.lights.LightsManager;
import android.app.ActivityManagerNative;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.os.BatteryManager;
import android.os.BatteryManagerInternal;
import android.os.BatteryProperties;
import android.os.Binder;
import android.os.FileUtils;
import android.os.Handler;
import android.os.IBatteryPropertiesListener;
import android.os.IBatteryPropertiesRegistrar;
import android.os.IBinder;
import android.os.DropBoxManager;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.SystemClock;
import android.os.UEventObserver;
import android.os.UserHandle;
import android.provider.Settings;
import android.util.EventLog;
import android.util.Slog;
import java.io.File;
import java.io.FileDescriptor;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintWriter;
/**
* <p>BatteryService monitors the charging status, and charge level of the device
* battery. When these values change this service broadcasts the new values
* to all {@link android.content.BroadcastReceiver IntentReceivers} that are
* watching the {@link android.content.Intent#ACTION_BATTERY_CHANGED
* BATTERY_CHANGED} action.</p>
* <p>The new values are stored in the Intent data and can be retrieved by
* calling {@link android.content.Intent#getExtra Intent.getExtra} with the
* following keys:</p>
* <p>"scale" - int, the maximum value for the charge level</p>
* <p>"level" - int, charge level, from 0 through "scale" inclusive</p>
* <p>"status" - String, the current charging status.<br />
* <p>"health" - String, the current battery health.<br />
* <p>"present" - boolean, true if the battery is present<br />
* <p>"icon-small" - int, suggested small icon to use for this state</p>
* <p>"plugged" - int, 0 if the device is not plugged in; 1 if plugged
* into an AC power adapter; 2 if plugged in via USB.</p>
* <p>"voltage" - int, current battery voltage in millivolts</p>
* <p>"temperature" - int, current battery temperature in tenths of
* a degree Centigrade</p>
* <p>"technology" - String, the type of battery installed, e.g. "Li-ion"</p>
*
* <p>
* The battery service may be called by the power manager while holding its locks so
* we take care to post all outcalls into the activity manager to a handler.
*
* FIXME: Ideally the power manager would perform all of its calls into the battery
* service asynchronously itself.
* </p>
*/
public final class BatteryService extends SystemService {
private static final String TAG = BatteryService.class.getSimpleName();
private static final boolean DEBUG = false;
private static final int BATTERY_SCALE = 100; // battery capacity is a percentage
// Used locally for determining when to make a last ditch effort to log
// discharge stats before the device dies.
private int mCriticalBatteryLevel;
private static final int DUMP_MAX_LENGTH = 24 * 1024;
private static final String[] DUMPSYS_ARGS = new String[] { "--checkin", "--unplugged" };
private static final String DUMPSYS_DATA_PATH = "/data/system/";
// This should probably be exposed in the API, though it's not critical
private static final int BATTERY_PLUGGED_NONE = 0;
private final Context mContext;
private final IBatteryStats mBatteryStats;
private final Handler mHandler;
private final Object mLock = new Object();
private BatteryProperties mBatteryProps;
private final BatteryProperties mLastBatteryProps = new BatteryProperties();
private boolean mBatteryLevelCritical;
private int mLastBatteryStatus;
private int mLastBatteryHealth;
private boolean mLastBatteryPresent;
private int mLastBatteryLevel;
private int mLastBatteryVoltage;
private int mLastBatteryTemperature;
private boolean mLastBatteryLevelCritical;
private int mInvalidCharger;
private int mLastInvalidCharger;
private int mLowBatteryWarningLevel;
private int mLowBatteryCloseWarningLevel;
private int mShutdownBatteryTemperature;
private int mPlugType;
private int mLastPlugType = -1; // Extra state so we can detect first run
private boolean mBatteryLevelLow;
private long mDischargeStartTime;
private int mDischargeStartLevel;
private boolean mUpdatesStopped;
private Led mLed;
private boolean mSentLowBatteryBroadcast = false;
public BatteryService(Context context) {
super(context);
mContext = context;
mHandler = new Handler(true /*async*/);
mLed = new Led(context, getLocalService(LightsManager.class));
mBatteryStats = BatteryStatsService.getService();
mCriticalBatteryLevel = mContext.getResources().getInteger(
com.android.internal.R.integer.config_criticalBatteryWarningLevel);
mLowBatteryWarningLevel = mContext.getResources().getInteger(
com.android.internal.R.integer.config_lowBatteryWarningLevel);
mLowBatteryCloseWarningLevel = mLowBatteryWarningLevel + mContext.getResources().getInteger(
com.android.internal.R.integer.config_lowBatteryCloseWarningBump);
mShutdownBatteryTemperature = mContext.getResources().getInteger(
com.android.internal.R.integer.config_shutdownBatteryTemperature);
// watch for invalid charger messages if the invalid_charger switch exists
if (new File("/sys/devices/virtual/switch/invalid_charger/state").exists()) {
mInvalidChargerObserver.startObserving(
"DEVPATH=/devices/virtual/switch/invalid_charger");
}
}
@Override
public void onStart() {
IBinder b = ServiceManager.getService("batteryproperties");
final IBatteryPropertiesRegistrar batteryPropertiesRegistrar =
IBatteryPropertiesRegistrar.Stub.asInterface(b);
try {
batteryPropertiesRegistrar.registerListener(new BatteryListener());
} catch (RemoteException e) {
// Should never happen.
}
publishBinderService("battery", new BinderService());
publishLocalService(BatteryManagerInternal.class, new LocalService());
}
@Override
public void onBootPhase(int phase) {
if (phase == PHASE_ACTIVITY_MANAGER_READY) {
// check our power situation now that it is safe to display the shutdown dialog.
synchronized (mLock) {
ContentObserver obs = new ContentObserver(mHandler) {
@Override
public void onChange(boolean selfChange) {
synchronized (mLock) {
updateBatteryWarningLevelLocked();
}
}
};
final ContentResolver resolver = mContext.getContentResolver();
resolver.registerContentObserver(Settings.Global.getUriFor(
Settings.Global.LOW_POWER_MODE_TRIGGER_LEVEL),
false, obs, UserHandle.USER_ALL);
updateBatteryWarningLevelLocked();
}
}
}
private void updateBatteryWarningLevelLocked() {
final ContentResolver resolver = mContext.getContentResolver();
int defWarnLevel = mContext.getResources().getInteger(
com.android.internal.R.integer.config_lowBatteryWarningLevel);
mLowBatteryWarningLevel = Settings.Global.getInt(resolver,
Settings.Global.LOW_POWER_MODE_TRIGGER_LEVEL, defWarnLevel);
if (mLowBatteryWarningLevel == 0) {
mLowBatteryWarningLevel = defWarnLevel;
}
if (mLowBatteryWarningLevel < mCriticalBatteryLevel) {
mLowBatteryWarningLevel = mCriticalBatteryLevel;
}
mLowBatteryCloseWarningLevel = mLowBatteryWarningLevel + mContext.getResources().getInteger(
com.android.internal.R.integer.config_lowBatteryCloseWarningBump);
processValuesLocked(true);
}
private boolean isPoweredLocked(int plugTypeSet) {
// assume we are powered if battery state is unknown so
// the "stay on while plugged in" option will work.
if (mBatteryProps.batteryStatus == BatteryManager.BATTERY_STATUS_UNKNOWN) {
return true;
}
if ((plugTypeSet & BatteryManager.BATTERY_PLUGGED_AC) != 0 && mBatteryProps.chargerAcOnline) {
return true;
}
if ((plugTypeSet & BatteryManager.BATTERY_PLUGGED_USB) != 0 && mBatteryProps.chargerUsbOnline) {
return true;
}
if ((plugTypeSet & BatteryManager.BATTERY_PLUGGED_WIRELESS) != 0 && mBatteryProps.chargerWirelessOnline) {
return true;
}
return false;
}
private boolean shouldSendBatteryLowLocked() {
final boolean plugged = mPlugType != BATTERY_PLUGGED_NONE;
final boolean oldPlugged = mLastPlugType != BATTERY_PLUGGED_NONE;
/* The ACTION_BATTERY_LOW broadcast is sent in these situations:
* - is just un-plugged (previously was plugged) and battery level is
* less than or equal to WARNING, or
* - is not plugged and battery level falls to WARNING boundary
* (becomes <= mLowBatteryWarningLevel).
*/
return !plugged
&& mBatteryProps.batteryStatus != BatteryManager.BATTERY_STATUS_UNKNOWN
&& mBatteryProps.batteryLevel <= mLowBatteryWarningLevel
&& (oldPlugged || mLastBatteryLevel > mLowBatteryWarningLevel);
}
private void shutdownIfNoPowerLocked() {
// shut down gracefully if our battery is critically low and we are not powered.
// wait until the system has booted before attempting to display the shutdown dialog.
if (mBatteryProps.batteryLevel == 0 && !isPoweredLocked(BatteryManager.BATTERY_PLUGGED_ANY)) {
mHandler.post(new Runnable() {
@Override
public void run() {
if (ActivityManagerNative.isSystemReady()) {
Intent intent = new Intent(Intent.ACTION_REQUEST_SHUTDOWN);
intent.putExtra(Intent.EXTRA_KEY_CONFIRM, false);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
mContext.startActivityAsUser(intent, UserHandle.CURRENT);
}
}
});
}
}
private void shutdownIfOverTempLocked() {
// shut down gracefully if temperature is too high (> 68.0C by default)
// wait until the system has booted before attempting to display the
// shutdown dialog.
if (mBatteryProps.batteryTemperature > mShutdownBatteryTemperature) {
mHandler.post(new Runnable() {
@Override
public void run() {
if (ActivityManagerNative.isSystemReady()) {
Intent intent = new Intent(Intent.ACTION_REQUEST_SHUTDOWN);
intent.putExtra(Intent.EXTRA_KEY_CONFIRM, false);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
mContext.startActivityAsUser(intent, UserHandle.CURRENT);
}
}
});
}
}
private void update(BatteryProperties props) {
synchronized (mLock) {
if (!mUpdatesStopped) {
mBatteryProps = props;
// Process the new values.
processValuesLocked(false);
} else {
mLastBatteryProps.set(props);
}
}
}
private void processValuesLocked(boolean force) {
boolean logOutlier = false;
long dischargeDuration = 0;
mBatteryLevelCritical = (mBatteryProps.batteryLevel <= mCriticalBatteryLevel);
if (mBatteryProps.chargerAcOnline) {
mPlugType = BatteryManager.BATTERY_PLUGGED_AC;
} else if (mBatteryProps.chargerUsbOnline) {
mPlugType = BatteryManager.BATTERY_PLUGGED_USB;
} else if (mBatteryProps.chargerWirelessOnline) {
mPlugType = BatteryManager.BATTERY_PLUGGED_WIRELESS;
} else {
mPlugType = BATTERY_PLUGGED_NONE;
}
if (DEBUG) {
Slog.d(TAG, "Processing new values: "
+ "chargerAcOnline=" + mBatteryProps.chargerAcOnline
+ ", chargerUsbOnline=" + mBatteryProps.chargerUsbOnline
+ ", chargerWirelessOnline=" + mBatteryProps.chargerWirelessOnline
+ ", batteryStatus=" + mBatteryProps.batteryStatus
+ ", batteryHealth=" + mBatteryProps.batteryHealth
+ ", batteryPresent=" + mBatteryProps.batteryPresent
+ ", batteryLevel=" + mBatteryProps.batteryLevel
+ ", batteryTechnology=" + mBatteryProps.batteryTechnology
+ ", batteryVoltage=" + mBatteryProps.batteryVoltage
+ ", batteryTemperature=" + mBatteryProps.batteryTemperature
+ ", mBatteryLevelCritical=" + mBatteryLevelCritical
+ ", mPlugType=" + mPlugType);
}
// Let the battery stats keep track of the current level.
try {
mBatteryStats.setBatteryState(mBatteryProps.batteryStatus, mBatteryProps.batteryHealth,
mPlugType, mBatteryProps.batteryLevel, mBatteryProps.batteryTemperature,
mBatteryProps.batteryVoltage);
} catch (RemoteException e) {
// Should never happen.
}
shutdownIfNoPowerLocked();
shutdownIfOverTempLocked();
if (force || (mBatteryProps.batteryStatus != mLastBatteryStatus ||
mBatteryProps.batteryHealth != mLastBatteryHealth ||
mBatteryProps.batteryPresent != mLastBatteryPresent ||
mBatteryProps.batteryLevel != mLastBatteryLevel ||
mPlugType != mLastPlugType ||
mBatteryProps.batteryVoltage != mLastBatteryVoltage ||
mBatteryProps.batteryTemperature != mLastBatteryTemperature ||
mInvalidCharger != mLastInvalidCharger)) {
if (mPlugType != mLastPlugType) {
if (mLastPlugType == BATTERY_PLUGGED_NONE) {
// discharging -> charging
// There's no value in this data unless we've discharged at least once and the
// battery level has changed; so don't log until it does.
if (mDischargeStartTime != 0 && mDischargeStartLevel != mBatteryProps.batteryLevel) {
dischargeDuration = SystemClock.elapsedRealtime() - mDischargeStartTime;
logOutlier = true;
EventLog.writeEvent(EventLogTags.BATTERY_DISCHARGE, dischargeDuration,
mDischargeStartLevel, mBatteryProps.batteryLevel);
// make sure we see a discharge event before logging again
mDischargeStartTime = 0;
}
} else if (mPlugType == BATTERY_PLUGGED_NONE) {
// charging -> discharging or we just powered up
mDischargeStartTime = SystemClock.elapsedRealtime();
mDischargeStartLevel = mBatteryProps.batteryLevel;
}
}
if (mBatteryProps.batteryStatus != mLastBatteryStatus ||
mBatteryProps.batteryHealth != mLastBatteryHealth ||
mBatteryProps.batteryPresent != mLastBatteryPresent ||
mPlugType != mLastPlugType) {
EventLog.writeEvent(EventLogTags.BATTERY_STATUS,
mBatteryProps.batteryStatus, mBatteryProps.batteryHealth, mBatteryProps.batteryPresent ? 1 : 0,
mPlugType, mBatteryProps.batteryTechnology);
}
if (mBatteryProps.batteryLevel != mLastBatteryLevel) {
// Don't do this just from voltage or temperature changes, that is
// too noisy.
EventLog.writeEvent(EventLogTags.BATTERY_LEVEL,
mBatteryProps.batteryLevel, mBatteryProps.batteryVoltage, mBatteryProps.batteryTemperature);
}
if (mBatteryLevelCritical && !mLastBatteryLevelCritical &&
mPlugType == BATTERY_PLUGGED_NONE) {
// We want to make sure we log discharge cycle outliers
// if the battery is about to die.
dischargeDuration = SystemClock.elapsedRealtime() - mDischargeStartTime;
logOutlier = true;
}
if (!mBatteryLevelLow) {
// Should we now switch in to low battery mode?
if (mPlugType == BATTERY_PLUGGED_NONE
&& mBatteryProps.batteryLevel <= mLowBatteryWarningLevel) {
mBatteryLevelLow = true;
}
} else {
// Should we now switch out of low battery mode?
if (mPlugType != BATTERY_PLUGGED_NONE) {
mBatteryLevelLow = false;
} else if (mBatteryProps.batteryLevel >= mLowBatteryCloseWarningLevel) {
mBatteryLevelLow = false;
} else if (force && mBatteryProps.batteryLevel >= mLowBatteryWarningLevel) {
// If being forced, the previous state doesn't matter, we will just
// absolutely check to see if we are now above the warning level.
mBatteryLevelLow = false;
}
}
sendIntentLocked();
// Separate broadcast is sent for power connected / not connected
// since the standard intent will not wake any applications and some
// applications may want to have smart behavior based on this.
if (mPlugType != 0 && mLastPlugType == 0) {
mHandler.post(new Runnable() {
@Override
public void run() {
Intent statusIntent = new Intent(Intent.ACTION_POWER_CONNECTED);
statusIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL);
}
});
}
else if (mPlugType == 0 && mLastPlugType != 0) {
mHandler.post(new Runnable() {
@Override
public void run() {
Intent statusIntent = new Intent(Intent.ACTION_POWER_DISCONNECTED);
statusIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL);
}
});
}
if (shouldSendBatteryLowLocked()) {
mSentLowBatteryBroadcast = true;
mHandler.post(new Runnable() {
@Override
public void run() {
Intent statusIntent = new Intent(Intent.ACTION_BATTERY_LOW);
statusIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL);
}
});
} else if (mSentLowBatteryBroadcast && mLastBatteryLevel >= mLowBatteryCloseWarningLevel) {
mSentLowBatteryBroadcast = false;
mHandler.post(new Runnable() {
@Override
public void run() {
Intent statusIntent = new Intent(Intent.ACTION_BATTERY_OKAY);
statusIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL);
}
});
}
// Update the battery LED
mLed.updateLightsLocked();
// This needs to be done after sendIntent() so that we get the lastest battery stats.
if (logOutlier && dischargeDuration != 0) {
logOutlierLocked(dischargeDuration);
}
mLastBatteryStatus = mBatteryProps.batteryStatus;
mLastBatteryHealth = mBatteryProps.batteryHealth;
mLastBatteryPresent = mBatteryProps.batteryPresent;
mLastBatteryLevel = mBatteryProps.batteryLevel;
mLastPlugType = mPlugType;
mLastBatteryVoltage = mBatteryProps.batteryVoltage;
mLastBatteryTemperature = mBatteryProps.batteryTemperature;
mLastBatteryLevelCritical = mBatteryLevelCritical;
mLastInvalidCharger = mInvalidCharger;
}
}
private void sendIntentLocked() {
// Pack up the values and broadcast them to everyone
final Intent intent = new Intent(Intent.ACTION_BATTERY_CHANGED);
intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY
| Intent.FLAG_RECEIVER_REPLACE_PENDING);
int icon = getIconLocked(mBatteryProps.batteryLevel);
intent.putExtra(BatteryManager.EXTRA_STATUS, mBatteryProps.batteryStatus);
intent.putExtra(BatteryManager.EXTRA_HEALTH, mBatteryProps.batteryHealth);
intent.putExtra(BatteryManager.EXTRA_PRESENT, mBatteryProps.batteryPresent);
intent.putExtra(BatteryManager.EXTRA_LEVEL, mBatteryProps.batteryLevel);
intent.putExtra(BatteryManager.EXTRA_SCALE, BATTERY_SCALE);
intent.putExtra(BatteryManager.EXTRA_ICON_SMALL, icon);
intent.putExtra(BatteryManager.EXTRA_PLUGGED, mPlugType);
intent.putExtra(BatteryManager.EXTRA_VOLTAGE, mBatteryProps.batteryVoltage);
intent.putExtra(BatteryManager.EXTRA_TEMPERATURE, mBatteryProps.batteryTemperature);
intent.putExtra(BatteryManager.EXTRA_TECHNOLOGY, mBatteryProps.batteryTechnology);
intent.putExtra(BatteryManager.EXTRA_INVALID_CHARGER, mInvalidCharger);
if (DEBUG) {
Slog.d(TAG, "Sending ACTION_BATTERY_CHANGED. level:" + mBatteryProps.batteryLevel +
", scale:" + BATTERY_SCALE + ", status:" + mBatteryProps.batteryStatus +
", health:" + mBatteryProps.batteryHealth + ", present:" + mBatteryProps.batteryPresent +
", voltage: " + mBatteryProps.batteryVoltage +
", temperature: " + mBatteryProps.batteryTemperature +
", technology: " + mBatteryProps.batteryTechnology +
", AC powered:" + mBatteryProps.chargerAcOnline + ", USB powered:" + mBatteryProps.chargerUsbOnline +
", Wireless powered:" + mBatteryProps.chargerWirelessOnline +
", icon:" + icon + ", invalid charger:" + mInvalidCharger);
}
mHandler.post(new Runnable() {
@Override
public void run() {
ActivityManagerNative.broadcastStickyIntent(intent, null, UserHandle.USER_ALL);
}
});
}
private void logBatteryStatsLocked() {
IBinder batteryInfoService = ServiceManager.getService(BatteryStats.SERVICE_NAME);
if (batteryInfoService == null) return;
DropBoxManager db = (DropBoxManager) mContext.getSystemService(Context.DROPBOX_SERVICE);
if (db == null || !db.isTagEnabled("BATTERY_DISCHARGE_INFO")) return;
File dumpFile = null;
FileOutputStream dumpStream = null;
try {
// dump the service to a file
dumpFile = new File(DUMPSYS_DATA_PATH + BatteryStats.SERVICE_NAME + ".dump");
dumpStream = new FileOutputStream(dumpFile);
batteryInfoService.dump(dumpStream.getFD(), DUMPSYS_ARGS);
FileUtils.sync(dumpStream);
// add dump file to drop box
db.addFile("BATTERY_DISCHARGE_INFO", dumpFile, DropBoxManager.IS_TEXT);
} catch (RemoteException e) {
Slog.e(TAG, "failed to dump battery service", e);
} catch (IOException e) {
Slog.e(TAG, "failed to write dumpsys file", e);
} finally {
// make sure we clean up
if (dumpStream != null) {
try {
dumpStream.close();
} catch (IOException e) {
Slog.e(TAG, "failed to close dumpsys output stream");
}
}
if (dumpFile != null && !dumpFile.delete()) {
Slog.e(TAG, "failed to delete temporary dumpsys file: "
+ dumpFile.getAbsolutePath());
}
}
}
private void logOutlierLocked(long duration) {
ContentResolver cr = mContext.getContentResolver();
String dischargeThresholdString = Settings.Global.getString(cr,
Settings.Global.BATTERY_DISCHARGE_THRESHOLD);
String durationThresholdString = Settings.Global.getString(cr,
Settings.Global.BATTERY_DISCHARGE_DURATION_THRESHOLD);
if (dischargeThresholdString != null && durationThresholdString != null) {
try {
long durationThreshold = Long.parseLong(durationThresholdString);
int dischargeThreshold = Integer.parseInt(dischargeThresholdString);
if (duration <= durationThreshold &&
mDischargeStartLevel - mBatteryProps.batteryLevel >= dischargeThreshold) {
// If the discharge cycle is bad enough we want to know about it.
logBatteryStatsLocked();
}
if (DEBUG) Slog.v(TAG, "duration threshold: " + durationThreshold +
" discharge threshold: " + dischargeThreshold);
if (DEBUG) Slog.v(TAG, "duration: " + duration + " discharge: " +
(mDischargeStartLevel - mBatteryProps.batteryLevel));
} catch (NumberFormatException e) {
Slog.e(TAG, "Invalid DischargeThresholds GService string: " +
durationThresholdString + " or " + dischargeThresholdString);
return;
}
}
}
private int getIconLocked(int level) {
if (mBatteryProps.batteryStatus == BatteryManager.BATTERY_STATUS_CHARGING) {
return com.android.internal.R.drawable.stat_sys_battery_charge;
} else if (mBatteryProps.batteryStatus == BatteryManager.BATTERY_STATUS_DISCHARGING) {
return com.android.internal.R.drawable.stat_sys_battery;
} else if (mBatteryProps.batteryStatus == BatteryManager.BATTERY_STATUS_NOT_CHARGING
|| mBatteryProps.batteryStatus == BatteryManager.BATTERY_STATUS_FULL) {
if (isPoweredLocked(BatteryManager.BATTERY_PLUGGED_ANY)
&& mBatteryProps.batteryLevel >= 100) {
return com.android.internal.R.drawable.stat_sys_battery_charge;
} else {
return com.android.internal.R.drawable.stat_sys_battery;
}
} else {
return com.android.internal.R.drawable.stat_sys_battery_unknown;
}
}
private void dumpInternal(PrintWriter pw, String[] args) {
synchronized (mLock) {
if (args == null || args.length == 0 || "-a".equals(args[0])) {
pw.println("Current Battery Service state:");
if (mUpdatesStopped) {
pw.println(" (UPDATES STOPPED -- use 'reset' to restart)");
}
pw.println(" AC powered: " + mBatteryProps.chargerAcOnline);
pw.println(" USB powered: " + mBatteryProps.chargerUsbOnline);
pw.println(" Wireless powered: " + mBatteryProps.chargerWirelessOnline);
pw.println(" status: " + mBatteryProps.batteryStatus);
pw.println(" health: " + mBatteryProps.batteryHealth);
pw.println(" present: " + mBatteryProps.batteryPresent);
pw.println(" level: " + mBatteryProps.batteryLevel);
pw.println(" scale: " + BATTERY_SCALE);
pw.println(" voltage: " + mBatteryProps.batteryVoltage);
pw.println(" temperature: " + mBatteryProps.batteryTemperature);
pw.println(" technology: " + mBatteryProps.batteryTechnology);
} else if (args.length == 3 && "set".equals(args[0])) {
String key = args[1];
String value = args[2];
try {
if (!mUpdatesStopped) {
mLastBatteryProps.set(mBatteryProps);
}
boolean update = true;
if ("ac".equals(key)) {
mBatteryProps.chargerAcOnline = Integer.parseInt(value) != 0;
} else if ("usb".equals(key)) {
mBatteryProps.chargerUsbOnline = Integer.parseInt(value) != 0;
} else if ("wireless".equals(key)) {
mBatteryProps.chargerWirelessOnline = Integer.parseInt(value) != 0;
} else if ("status".equals(key)) {
mBatteryProps.batteryStatus = Integer.parseInt(value);
} else if ("level".equals(key)) {
mBatteryProps.batteryLevel = Integer.parseInt(value);
} else if ("invalid".equals(key)) {
mInvalidCharger = Integer.parseInt(value);
} else {
pw.println("Unknown set option: " + key);
update = false;
}
if (update) {
long ident = Binder.clearCallingIdentity();
try {
mUpdatesStopped = true;
processValuesLocked(false);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
} catch (NumberFormatException ex) {
pw.println("Bad value: " + value);
}
} else if (args.length == 1 && "reset".equals(args[0])) {
long ident = Binder.clearCallingIdentity();
try {
if (mUpdatesStopped) {
mUpdatesStopped = false;
mBatteryProps.set(mLastBatteryProps);
processValuesLocked(false);
}
} finally {
Binder.restoreCallingIdentity(ident);
}
} else {
pw.println("Dump current battery state, or:");
pw.println(" set [ac|usb|wireless|status|level|invalid] <value>");
pw.println(" reset");
}
}
}
private final UEventObserver mInvalidChargerObserver = new UEventObserver() {
@Override
public void onUEvent(UEventObserver.UEvent event) {
final int invalidCharger = "1".equals(event.get("SWITCH_STATE")) ? 1 : 0;
synchronized (mLock) {
if (mInvalidCharger != invalidCharger) {
mInvalidCharger = invalidCharger;
}
}
}
};
private final class Led {
private final Light mBatteryLight;
private final int mBatteryLowARGB;
private final int mBatteryMediumARGB;
private final int mBatteryFullARGB;
private final int mBatteryLedOn;
private final int mBatteryLedOff;
public Led(Context context, LightsManager lights) {
mBatteryLight = lights.getLight(LightsManager.LIGHT_ID_BATTERY);
mBatteryLowARGB = context.getResources().getInteger(
com.android.internal.R.integer.config_notificationsBatteryLowARGB);
mBatteryMediumARGB = context.getResources().getInteger(
com.android.internal.R.integer.config_notificationsBatteryMediumARGB);
mBatteryFullARGB = context.getResources().getInteger(
com.android.internal.R.integer.config_notificationsBatteryFullARGB);
mBatteryLedOn = context.getResources().getInteger(
com.android.internal.R.integer.config_notificationsBatteryLedOn);
mBatteryLedOff = context.getResources().getInteger(
com.android.internal.R.integer.config_notificationsBatteryLedOff);
}
/**
* Synchronize on BatteryService.
*/
public void updateLightsLocked() {
final int level = mBatteryProps.batteryLevel;
final int status = mBatteryProps.batteryStatus;
if (level < mLowBatteryWarningLevel) {
if (status == BatteryManager.BATTERY_STATUS_CHARGING) {
// Solid red when battery is charging
mBatteryLight.setColor(mBatteryLowARGB);
} else {
// Flash red when battery is low and not charging
mBatteryLight.setFlashing(mBatteryLowARGB, Light.LIGHT_FLASH_TIMED,
mBatteryLedOn, mBatteryLedOff);
}
} else if (status == BatteryManager.BATTERY_STATUS_CHARGING
|| status == BatteryManager.BATTERY_STATUS_FULL) {
if (status == BatteryManager.BATTERY_STATUS_FULL || level >= 90) {
// Solid green when full or charging and nearly full
mBatteryLight.setColor(mBatteryFullARGB);
} else {
// Solid orange when charging and halfway full
mBatteryLight.setColor(mBatteryMediumARGB);
}
} else {
// No lights if not charging and not low
mBatteryLight.turnOff();
}
}
}
private final class BatteryListener extends IBatteryPropertiesListener.Stub {
@Override
public void batteryPropertiesChanged(BatteryProperties props) {
final long identity = Binder.clearCallingIdentity();
try {
BatteryService.this.update(props);
} finally {
Binder.restoreCallingIdentity(identity);
}
}
}
private final class BinderService extends Binder {
@Override
protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP)
!= PackageManager.PERMISSION_GRANTED) {
pw.println("Permission Denial: can't dump Battery service from from pid="
+ Binder.getCallingPid()
+ ", uid=" + Binder.getCallingUid());
return;
}
dumpInternal(pw, args);
}
}
private final class LocalService extends BatteryManagerInternal {
@Override
public boolean isPowered(int plugTypeSet) {
synchronized (mLock) {
return isPoweredLocked(plugTypeSet);
}
}
@Override
public int getPlugType() {
synchronized (mLock) {
return mPlugType;
}
}
@Override
public int getBatteryLevel() {
synchronized (mLock) {
return mBatteryProps.batteryLevel;
}
}
@Override
public boolean getBatteryLevelLow() {
synchronized (mLock) {
return mBatteryLevelLow;
}
}
@Override
public int getInvalidCharger() {
synchronized (mLock) {
return mInvalidCharger;
}
}
}
}
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