/* * 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.os.BatteryStats; import com.android.internal.app.IBatteryStats; import com.android.server.am.BatteryStatsService; 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.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; /** *

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.

*

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:

*

"scale" - int, the maximum value for the charge level

*

"level" - int, charge level, from 0 through "scale" inclusive

*

"status" - String, the current charging status.
*

"health" - String, the current battery health.
*

"present" - boolean, true if the battery is present
*

"icon-small" - int, suggested small icon to use for this state

*

"plugged" - int, 0 if the device is not plugged in; 1 if plugged * into an AC power adapter; 2 if plugged in via USB.

*

"voltage" - int, current battery voltage in millivolts

*

"temperature" - int, current battery temperature in tenths of * a degree Centigrade

*

"technology" - String, the type of battery installed, e.g. "Li-ion"

* *

* 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. *

*/ public final class BatteryService extends Binder { 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 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 long mDischargeStartTime; private int mDischargeStartLevel; private boolean mUpdatesStopped; private Led mLed; private boolean mSentLowBatteryBroadcast = false; private BatteryListener mBatteryPropertiesListener; private IBatteryPropertiesRegistrar mBatteryPropertiesRegistrar; public BatteryService(Context context, LightsService lights) { mContext = context; mHandler = new Handler(true /*async*/); mLed = new Led(context, lights); 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 = mContext.getResources().getInteger( com.android.internal.R.integer.config_lowBatteryCloseWarningLevel); 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"); } mBatteryPropertiesListener = new BatteryListener(); IBinder b = ServiceManager.getService("batterypropreg"); mBatteryPropertiesRegistrar = IBatteryPropertiesRegistrar.Stub.asInterface(b); try { mBatteryPropertiesRegistrar.registerListener(mBatteryPropertiesListener); } catch (RemoteException e) { // Should never happen. } } void systemReady() { // check our power situation now that it is safe to display the shutdown dialog. synchronized (mLock) { shutdownIfNoPowerLocked(); shutdownIfOverTempLocked(); } } /** * Returns true if the device is plugged into any of the specified plug types. */ public boolean isPowered(int plugTypeSet) { synchronized (mLock) { return isPoweredLocked(plugTypeSet); } } 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; } /** * Returns the current plug type. */ public int getPlugType() { synchronized (mLock) { return mPlugType; } } /** * Returns battery level as a percentage. */ public int getBatteryLevel() { synchronized (mLock) { return mBatteryProps.batteryLevel; } } /** * Returns true if battery level is below the first warning threshold. */ public boolean isBatteryLow() { synchronized (mLock) { return mBatteryProps.batteryPresent && mBatteryProps.batteryLevel <= mLowBatteryWarningLevel; } } /** * Returns a non-zero value if an unsupported charger is attached. */ public int getInvalidCharger() { synchronized (mLock) { return mInvalidCharger; } } 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(); } } } private void processValuesLocked() { 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 + ", batteryCurrentNow=" + mBatteryProps.batteryCurrentNow + ", batteryChargeCounter=" + mBatteryProps.batteryChargeCounter + ", 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 (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; } 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). */ final boolean sendBatteryLow = !plugged && mBatteryProps.batteryStatus != BatteryManager.BATTERY_STATUS_UNKNOWN && mBatteryProps.batteryLevel <= mLowBatteryWarningLevel && (oldPlugged || mLastBatteryLevel > mLowBatteryWarningLevel); 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 (sendBatteryLow) { 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; } } @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; } 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); if (mBatteryProps.batteryCurrentNow != Integer.MIN_VALUE) { pw.println(" current now: " + mBatteryProps.batteryCurrentNow); } if (mBatteryProps.batteryChargeCounter != Integer.MIN_VALUE) { pw.println(" charge counter: " + mBatteryProps.batteryChargeCounter); } 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 { 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(); } 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 { mUpdatesStopped = false; } finally { Binder.restoreCallingIdentity(ident); } } else { pw.println("Dump current battery state, or:"); pw.println(" set ac|usb|wireless|status|level|invalid "); 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 LightsService.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, LightsService lights) { mBatteryLight = lights.getLight(LightsService.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, LightsService.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 { public void batteryPropertiesChanged(BatteryProperties props) { BatteryService.this.update(props); } } }