| /* |
| * 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 static com.android.internal.logging.nano.MetricsProto.MetricsEvent; |
| |
| import android.app.ActivityManager; |
| import android.app.ActivityManagerInternal; |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.database.ContentObserver; |
| import android.hardware.health.V1_0.HealthInfo; |
| import android.hardware.health.V2_0.IHealth; |
| import android.hardware.health.V2_0.IHealthInfoCallback; |
| import android.hardware.health.V2_0.Result; |
| import android.hidl.manager.V1_0.IServiceManager; |
| import android.hidl.manager.V1_0.IServiceNotification; |
| import android.metrics.LogMaker; |
| import android.os.BatteryManager; |
| import android.os.BatteryManagerInternal; |
| import android.os.BatteryProperty; |
| import android.os.BatteryStats; |
| import android.os.Binder; |
| import android.os.Bundle; |
| import android.os.DropBoxManager; |
| import android.os.FileUtils; |
| import android.os.Handler; |
| import android.os.HandlerThread; |
| import android.os.IBatteryPropertiesRegistrar; |
| import android.os.IBinder; |
| import android.os.OsProtoEnums; |
| import android.os.PowerManager; |
| import android.os.RemoteException; |
| import android.os.ResultReceiver; |
| import android.os.ServiceManager; |
| import android.os.ShellCallback; |
| import android.os.ShellCommand; |
| import android.os.SystemClock; |
| import android.os.Trace; |
| import android.os.UEventObserver; |
| import android.os.UserHandle; |
| import android.provider.Settings; |
| import android.service.battery.BatteryServiceDumpProto; |
| import android.util.EventLog; |
| import android.util.MutableInt; |
| import android.util.Slog; |
| import android.util.proto.ProtoOutputStream; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.app.IBatteryStats; |
| import com.android.internal.logging.MetricsLogger; |
| import com.android.internal.util.DumpUtils; |
| import com.android.server.am.BatteryStatsService; |
| import com.android.server.lights.Light; |
| import com.android.server.lights.LightsManager; |
| |
| import java.io.File; |
| import java.io.FileDescriptor; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| import java.util.ArrayDeque; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.NoSuchElementException; |
| import java.util.Objects; |
| import java.util.concurrent.atomic.AtomicReference; |
| |
| /** |
| * <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 |
| |
| private static final long HEALTH_HAL_WAIT_MS = 1000; |
| private static final long BATTERY_LEVEL_CHANGE_THROTTLE_MS = 60_000; |
| private static final int MAX_BATTERY_LEVELS_QUEUE_SIZE = 100; |
| |
| // Used locally for determining when to make a last ditch effort to log |
| // discharge stats before the device dies. |
| private int mCriticalBatteryLevel; |
| |
| // TODO: Current args don't work since "--unplugged" flag was purposefully removed. |
| 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 = OsProtoEnums.BATTERY_PLUGGED_NONE; // = 0 |
| |
| private final Context mContext; |
| private final IBatteryStats mBatteryStats; |
| BinderService mBinderService; |
| private final Handler mHandler; |
| |
| private final Object mLock = new Object(); |
| |
| private HealthInfo mHealthInfo; |
| private final HealthInfo mLastHealthInfo = new HealthInfo(); |
| 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 mLastMaxChargingCurrent; |
| private int mLastMaxChargingVoltage; |
| private int mLastChargeCounter; |
| |
| private int mSequence = 1; |
| |
| 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 long mChargeStartTime; |
| private int mChargeStartLevel; |
| |
| private boolean mUpdatesStopped; |
| |
| private Led mLed; |
| |
| private boolean mSentLowBatteryBroadcast = false; |
| |
| private ActivityManagerInternal mActivityManagerInternal; |
| |
| private HealthServiceWrapper mHealthServiceWrapper; |
| private HealthHalCallback mHealthHalCallback; |
| private BatteryPropertiesRegistrar mBatteryPropertiesRegistrar; |
| private ArrayDeque<Bundle> mBatteryLevelsEventQueue; |
| private long mLastBatteryLevelChangedSentMs; |
| |
| private MetricsLogger mMetricsLogger; |
| |
| public BatteryService(Context context) { |
| super(context); |
| |
| mContext = context; |
| mHandler = new Handler(true /*async*/); |
| mLed = new Led(context, getLocalService(LightsManager.class)); |
| mBatteryStats = BatteryStatsService.getService(); |
| mActivityManagerInternal = LocalServices.getService(ActivityManagerInternal.class); |
| |
| 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); |
| |
| mBatteryLevelsEventQueue = new ArrayDeque<>(); |
| mMetricsLogger = new MetricsLogger(); |
| |
| // watch for invalid charger messages if the invalid_charger switch exists |
| if (new File("/sys/devices/virtual/switch/invalid_charger/state").exists()) { |
| UEventObserver invalidChargerObserver = new UEventObserver() { |
| @Override |
| public void onUEvent(UEvent event) { |
| final int invalidCharger = "1".equals(event.get("SWITCH_STATE")) ? 1 : 0; |
| synchronized (mLock) { |
| if (mInvalidCharger != invalidCharger) { |
| mInvalidCharger = invalidCharger; |
| } |
| } |
| } |
| }; |
| invalidChargerObserver.startObserving( |
| "DEVPATH=/devices/virtual/switch/invalid_charger"); |
| } |
| } |
| |
| @Override |
| public void onStart() { |
| registerHealthCallback(); |
| |
| mBinderService = new BinderService(); |
| publishBinderService("battery", mBinderService); |
| mBatteryPropertiesRegistrar = new BatteryPropertiesRegistrar(); |
| publishBinderService("batteryproperties", mBatteryPropertiesRegistrar); |
| 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 registerHealthCallback() { |
| traceBegin("HealthInitWrapper"); |
| mHealthServiceWrapper = new HealthServiceWrapper(); |
| mHealthHalCallback = new HealthHalCallback(); |
| // IHealth is lazily retrieved. |
| try { |
| mHealthServiceWrapper.init(mHealthHalCallback, |
| new HealthServiceWrapper.IServiceManagerSupplier() {}, |
| new HealthServiceWrapper.IHealthSupplier() {}); |
| } catch (RemoteException ex) { |
| Slog.e(TAG, "health: cannot register callback. (RemoteException)"); |
| throw ex.rethrowFromSystemServer(); |
| } catch (NoSuchElementException ex) { |
| Slog.e(TAG, "health: cannot register callback. (no supported health HAL service)"); |
| throw ex; |
| } finally { |
| traceEnd(); |
| } |
| |
| traceBegin("HealthInitWaitUpdate"); |
| // init register for new service notifications, and IServiceManager should return the |
| // existing service in a near future. Wait for this.update() to instantiate |
| // the initial mHealthInfo. |
| long beforeWait = SystemClock.uptimeMillis(); |
| synchronized (mLock) { |
| while (mHealthInfo == null) { |
| Slog.i(TAG, "health: Waited " + (SystemClock.uptimeMillis() - beforeWait) + |
| "ms for callbacks. Waiting another " + HEALTH_HAL_WAIT_MS + " ms..."); |
| try { |
| mLock.wait(HEALTH_HAL_WAIT_MS); |
| } catch (InterruptedException ex) { |
| Slog.i(TAG, "health: InterruptedException when waiting for update. " |
| + " Continuing..."); |
| } |
| } |
| } |
| |
| Slog.i(TAG, "health: Waited " + (SystemClock.uptimeMillis() - beforeWait) |
| + "ms and received the update."); |
| traceEnd(); |
| } |
| |
| 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 (mHealthInfo.batteryStatus == BatteryManager.BATTERY_STATUS_UNKNOWN) { |
| return true; |
| } |
| if ((plugTypeSet & BatteryManager.BATTERY_PLUGGED_AC) != 0 && mHealthInfo.chargerAcOnline) { |
| return true; |
| } |
| if ((plugTypeSet & BatteryManager.BATTERY_PLUGGED_USB) != 0 && mHealthInfo.chargerUsbOnline) { |
| return true; |
| } |
| if ((plugTypeSet & BatteryManager.BATTERY_PLUGGED_WIRELESS) != 0 && mHealthInfo.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 |
| && mHealthInfo.batteryStatus != BatteryManager.BATTERY_STATUS_UNKNOWN |
| && mHealthInfo.batteryLevel <= mLowBatteryWarningLevel |
| && (oldPlugged || mLastBatteryLevel > mLowBatteryWarningLevel); |
| } |
| |
| private boolean shouldShutdownLocked() { |
| if (mHealthInfo.batteryLevel > 0) { |
| return false; |
| } |
| |
| // Battery-less devices should not shutdown. |
| if (!mHealthInfo.batteryPresent) { |
| return false; |
| } |
| |
| // If battery state is not CHARGING, shutdown. |
| // - If battery present and state == unknown, this is an unexpected error state. |
| // - If level <= 0 and state == full, this is also an unexpected state |
| // - All other states (NOT_CHARGING, DISCHARGING) means it is not charging. |
| return mHealthInfo.batteryStatus != BatteryManager.BATTERY_STATUS_CHARGING; |
| } |
| |
| 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 (shouldShutdownLocked()) { |
| mHandler.post(new Runnable() { |
| @Override |
| public void run() { |
| if (mActivityManagerInternal.isSystemReady()) { |
| Intent intent = new Intent(Intent.ACTION_REQUEST_SHUTDOWN); |
| intent.putExtra(Intent.EXTRA_KEY_CONFIRM, false); |
| intent.putExtra(Intent.EXTRA_REASON, |
| PowerManager.SHUTDOWN_LOW_BATTERY); |
| 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 (mHealthInfo.batteryTemperature > mShutdownBatteryTemperature) { |
| mHandler.post(new Runnable() { |
| @Override |
| public void run() { |
| if (mActivityManagerInternal.isSystemReady()) { |
| Intent intent = new Intent(Intent.ACTION_REQUEST_SHUTDOWN); |
| intent.putExtra(Intent.EXTRA_KEY_CONFIRM, false); |
| intent.putExtra(Intent.EXTRA_REASON, |
| PowerManager.SHUTDOWN_BATTERY_THERMAL_STATE); |
| intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); |
| mContext.startActivityAsUser(intent, UserHandle.CURRENT); |
| } |
| } |
| }); |
| } |
| } |
| |
| private void update(android.hardware.health.V2_0.HealthInfo info) { |
| traceBegin("HealthInfoUpdate"); |
| |
| Trace.traceCounter(Trace.TRACE_TAG_POWER, "BatteryChargeCounter", |
| info.legacy.batteryChargeCounter); |
| Trace.traceCounter(Trace.TRACE_TAG_POWER, "BatteryCurrent", |
| info.legacy.batteryCurrent); |
| |
| synchronized (mLock) { |
| if (!mUpdatesStopped) { |
| mHealthInfo = info.legacy; |
| // Process the new values. |
| processValuesLocked(false); |
| mLock.notifyAll(); // for any waiters on new info |
| } else { |
| copy(mLastHealthInfo, info.legacy); |
| } |
| } |
| traceEnd(); |
| } |
| |
| private static void copy(HealthInfo dst, HealthInfo src) { |
| dst.chargerAcOnline = src.chargerAcOnline; |
| dst.chargerUsbOnline = src.chargerUsbOnline; |
| dst.chargerWirelessOnline = src.chargerWirelessOnline; |
| dst.maxChargingCurrent = src.maxChargingCurrent; |
| dst.maxChargingVoltage = src.maxChargingVoltage; |
| dst.batteryStatus = src.batteryStatus; |
| dst.batteryHealth = src.batteryHealth; |
| dst.batteryPresent = src.batteryPresent; |
| dst.batteryLevel = src.batteryLevel; |
| dst.batteryVoltage = src.batteryVoltage; |
| dst.batteryTemperature = src.batteryTemperature; |
| dst.batteryCurrent = src.batteryCurrent; |
| dst.batteryCycleCount = src.batteryCycleCount; |
| dst.batteryFullCharge = src.batteryFullCharge; |
| dst.batteryChargeCounter = src.batteryChargeCounter; |
| dst.batteryTechnology = src.batteryTechnology; |
| } |
| |
| private void processValuesLocked(boolean force) { |
| boolean logOutlier = false; |
| long dischargeDuration = 0; |
| |
| mBatteryLevelCritical = |
| mHealthInfo.batteryStatus != BatteryManager.BATTERY_STATUS_UNKNOWN |
| && mHealthInfo.batteryLevel <= mCriticalBatteryLevel; |
| if (mHealthInfo.chargerAcOnline) { |
| mPlugType = BatteryManager.BATTERY_PLUGGED_AC; |
| } else if (mHealthInfo.chargerUsbOnline) { |
| mPlugType = BatteryManager.BATTERY_PLUGGED_USB; |
| } else if (mHealthInfo.chargerWirelessOnline) { |
| mPlugType = BatteryManager.BATTERY_PLUGGED_WIRELESS; |
| } else { |
| mPlugType = BATTERY_PLUGGED_NONE; |
| } |
| |
| if (DEBUG) { |
| Slog.d(TAG, "Processing new values: " |
| + "info=" + mHealthInfo |
| + ", mBatteryLevelCritical=" + mBatteryLevelCritical |
| + ", mPlugType=" + mPlugType); |
| } |
| |
| // Let the battery stats keep track of the current level. |
| try { |
| mBatteryStats.setBatteryState(mHealthInfo.batteryStatus, mHealthInfo.batteryHealth, |
| mPlugType, mHealthInfo.batteryLevel, mHealthInfo.batteryTemperature, |
| mHealthInfo.batteryVoltage, mHealthInfo.batteryChargeCounter, |
| mHealthInfo.batteryFullCharge); |
| } catch (RemoteException e) { |
| // Should never happen. |
| } |
| |
| shutdownIfNoPowerLocked(); |
| shutdownIfOverTempLocked(); |
| |
| if (force || (mHealthInfo.batteryStatus != mLastBatteryStatus || |
| mHealthInfo.batteryHealth != mLastBatteryHealth || |
| mHealthInfo.batteryPresent != mLastBatteryPresent || |
| mHealthInfo.batteryLevel != mLastBatteryLevel || |
| mPlugType != mLastPlugType || |
| mHealthInfo.batteryVoltage != mLastBatteryVoltage || |
| mHealthInfo.batteryTemperature != mLastBatteryTemperature || |
| mHealthInfo.maxChargingCurrent != mLastMaxChargingCurrent || |
| mHealthInfo.maxChargingVoltage != mLastMaxChargingVoltage || |
| mHealthInfo.batteryChargeCounter != mLastChargeCounter || |
| mInvalidCharger != mLastInvalidCharger)) { |
| |
| if (mPlugType != mLastPlugType) { |
| if (mLastPlugType == BATTERY_PLUGGED_NONE) { |
| // discharging -> charging |
| mChargeStartLevel = mHealthInfo.batteryLevel; |
| mChargeStartTime = SystemClock.elapsedRealtime(); |
| |
| final LogMaker builder = new LogMaker(MetricsEvent.ACTION_CHARGE); |
| builder.setType(MetricsEvent.TYPE_ACTION); |
| builder.addTaggedData(MetricsEvent.FIELD_PLUG_TYPE, mPlugType); |
| builder.addTaggedData(MetricsEvent.FIELD_BATTERY_LEVEL_START, |
| mHealthInfo.batteryLevel); |
| mMetricsLogger.write(builder); |
| |
| // 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 != mHealthInfo.batteryLevel) { |
| dischargeDuration = SystemClock.elapsedRealtime() - mDischargeStartTime; |
| logOutlier = true; |
| EventLog.writeEvent(EventLogTags.BATTERY_DISCHARGE, dischargeDuration, |
| mDischargeStartLevel, mHealthInfo.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 = mHealthInfo.batteryLevel; |
| |
| long chargeDuration = SystemClock.elapsedRealtime() - mChargeStartTime; |
| if (mChargeStartTime != 0 && chargeDuration != 0) { |
| final LogMaker builder = new LogMaker(MetricsEvent.ACTION_CHARGE); |
| builder.setType(MetricsEvent.TYPE_DISMISS); |
| builder.addTaggedData(MetricsEvent.FIELD_PLUG_TYPE, mLastPlugType); |
| builder.addTaggedData(MetricsEvent.FIELD_CHARGING_DURATION_MILLIS, |
| chargeDuration); |
| builder.addTaggedData(MetricsEvent.FIELD_BATTERY_LEVEL_START, |
| mChargeStartLevel); |
| builder.addTaggedData(MetricsEvent.FIELD_BATTERY_LEVEL_END, |
| mHealthInfo.batteryLevel); |
| mMetricsLogger.write(builder); |
| } |
| mChargeStartTime = 0; |
| } |
| } |
| if (mHealthInfo.batteryStatus != mLastBatteryStatus || |
| mHealthInfo.batteryHealth != mLastBatteryHealth || |
| mHealthInfo.batteryPresent != mLastBatteryPresent || |
| mPlugType != mLastPlugType) { |
| EventLog.writeEvent(EventLogTags.BATTERY_STATUS, |
| mHealthInfo.batteryStatus, mHealthInfo.batteryHealth, mHealthInfo.batteryPresent ? 1 : 0, |
| mPlugType, mHealthInfo.batteryTechnology); |
| } |
| if (mHealthInfo.batteryLevel != mLastBatteryLevel) { |
| // Don't do this just from voltage or temperature changes, that is |
| // too noisy. |
| EventLog.writeEvent(EventLogTags.BATTERY_LEVEL, |
| mHealthInfo.batteryLevel, mHealthInfo.batteryVoltage, mHealthInfo.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 |
| && mHealthInfo.batteryStatus != |
| BatteryManager.BATTERY_STATUS_UNKNOWN |
| && mHealthInfo.batteryLevel <= mLowBatteryWarningLevel) { |
| mBatteryLevelLow = true; |
| } |
| } else { |
| // Should we now switch out of low battery mode? |
| if (mPlugType != BATTERY_PLUGGED_NONE) { |
| mBatteryLevelLow = false; |
| } else if (mHealthInfo.batteryLevel >= mLowBatteryCloseWarningLevel) { |
| mBatteryLevelLow = false; |
| } else if (force && mHealthInfo.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; |
| } |
| } |
| |
| mSequence++; |
| |
| // 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) { |
| final Intent statusIntent = new Intent(Intent.ACTION_POWER_CONNECTED); |
| statusIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); |
| statusIntent.putExtra(BatteryManager.EXTRA_SEQUENCE, mSequence); |
| mHandler.post(new Runnable() { |
| @Override |
| public void run() { |
| mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL); |
| } |
| }); |
| } |
| else if (mPlugType == 0 && mLastPlugType != 0) { |
| final Intent statusIntent = new Intent(Intent.ACTION_POWER_DISCONNECTED); |
| statusIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); |
| statusIntent.putExtra(BatteryManager.EXTRA_SEQUENCE, mSequence); |
| mHandler.post(new Runnable() { |
| @Override |
| public void run() { |
| mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL); |
| } |
| }); |
| } |
| |
| if (shouldSendBatteryLowLocked()) { |
| mSentLowBatteryBroadcast = true; |
| final Intent statusIntent = new Intent(Intent.ACTION_BATTERY_LOW); |
| statusIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); |
| statusIntent.putExtra(BatteryManager.EXTRA_SEQUENCE, mSequence); |
| mHandler.post(new Runnable() { |
| @Override |
| public void run() { |
| mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL); |
| } |
| }); |
| } else if (mSentLowBatteryBroadcast && |
| mHealthInfo.batteryLevel >= mLowBatteryCloseWarningLevel) { |
| mSentLowBatteryBroadcast = false; |
| final Intent statusIntent = new Intent(Intent.ACTION_BATTERY_OKAY); |
| statusIntent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); |
| statusIntent.putExtra(BatteryManager.EXTRA_SEQUENCE, mSequence); |
| mHandler.post(new Runnable() { |
| @Override |
| public void run() { |
| mContext.sendBroadcastAsUser(statusIntent, UserHandle.ALL); |
| } |
| }); |
| } |
| |
| // We are doing this after sending the above broadcasts, so anything processing |
| // them will get the new sequence number at that point. (See for example how testing |
| // of JobScheduler's BatteryController works.) |
| sendBatteryChangedIntentLocked(); |
| if (mLastBatteryLevel != mHealthInfo.batteryLevel || mLastPlugType != mPlugType) { |
| sendBatteryLevelChangedIntentLocked(); |
| } |
| |
| |
| // 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 = mHealthInfo.batteryStatus; |
| mLastBatteryHealth = mHealthInfo.batteryHealth; |
| mLastBatteryPresent = mHealthInfo.batteryPresent; |
| mLastBatteryLevel = mHealthInfo.batteryLevel; |
| mLastPlugType = mPlugType; |
| mLastBatteryVoltage = mHealthInfo.batteryVoltage; |
| mLastBatteryTemperature = mHealthInfo.batteryTemperature; |
| mLastMaxChargingCurrent = mHealthInfo.maxChargingCurrent; |
| mLastMaxChargingVoltage = mHealthInfo.maxChargingVoltage; |
| mLastChargeCounter = mHealthInfo.batteryChargeCounter; |
| mLastBatteryLevelCritical = mBatteryLevelCritical; |
| mLastInvalidCharger = mInvalidCharger; |
| } |
| } |
| |
| private void sendBatteryChangedIntentLocked() { |
| // 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(mHealthInfo.batteryLevel); |
| |
| intent.putExtra(BatteryManager.EXTRA_SEQUENCE, mSequence); |
| intent.putExtra(BatteryManager.EXTRA_STATUS, mHealthInfo.batteryStatus); |
| intent.putExtra(BatteryManager.EXTRA_HEALTH, mHealthInfo.batteryHealth); |
| intent.putExtra(BatteryManager.EXTRA_PRESENT, mHealthInfo.batteryPresent); |
| intent.putExtra(BatteryManager.EXTRA_LEVEL, mHealthInfo.batteryLevel); |
| intent.putExtra(BatteryManager.EXTRA_BATTERY_LOW, mSentLowBatteryBroadcast); |
| 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, mHealthInfo.batteryVoltage); |
| intent.putExtra(BatteryManager.EXTRA_TEMPERATURE, mHealthInfo.batteryTemperature); |
| intent.putExtra(BatteryManager.EXTRA_TECHNOLOGY, mHealthInfo.batteryTechnology); |
| intent.putExtra(BatteryManager.EXTRA_INVALID_CHARGER, mInvalidCharger); |
| intent.putExtra(BatteryManager.EXTRA_MAX_CHARGING_CURRENT, mHealthInfo.maxChargingCurrent); |
| intent.putExtra(BatteryManager.EXTRA_MAX_CHARGING_VOLTAGE, mHealthInfo.maxChargingVoltage); |
| intent.putExtra(BatteryManager.EXTRA_CHARGE_COUNTER, mHealthInfo.batteryChargeCounter); |
| if (DEBUG) { |
| Slog.d(TAG, "Sending ACTION_BATTERY_CHANGED. scale:" + BATTERY_SCALE |
| + ", info:" + mHealthInfo.toString()); |
| } |
| |
| mHandler.post(() -> ActivityManager.broadcastStickyIntent(intent, UserHandle.USER_ALL)); |
| } |
| |
| private void sendBatteryLevelChangedIntentLocked() { |
| Bundle event = new Bundle(); |
| long now = SystemClock.elapsedRealtime(); |
| event.putInt(BatteryManager.EXTRA_SEQUENCE, mSequence); |
| event.putInt(BatteryManager.EXTRA_STATUS, mHealthInfo.batteryStatus); |
| event.putInt(BatteryManager.EXTRA_HEALTH, mHealthInfo.batteryHealth); |
| event.putBoolean(BatteryManager.EXTRA_PRESENT, mHealthInfo.batteryPresent); |
| event.putInt(BatteryManager.EXTRA_LEVEL, mHealthInfo.batteryLevel); |
| event.putBoolean(BatteryManager.EXTRA_BATTERY_LOW, mSentLowBatteryBroadcast); |
| event.putInt(BatteryManager.EXTRA_SCALE, BATTERY_SCALE); |
| event.putInt(BatteryManager.EXTRA_PLUGGED, mPlugType); |
| event.putInt(BatteryManager.EXTRA_VOLTAGE, mHealthInfo.batteryVoltage); |
| event.putLong(BatteryManager.EXTRA_EVENT_TIMESTAMP, now); |
| |
| boolean queueWasEmpty = mBatteryLevelsEventQueue.isEmpty(); |
| mBatteryLevelsEventQueue.add(event); |
| // Make sure queue is bounded and doesn't exceed intent payload limits |
| if (mBatteryLevelsEventQueue.size() > MAX_BATTERY_LEVELS_QUEUE_SIZE) { |
| mBatteryLevelsEventQueue.removeFirst(); |
| } |
| |
| if (queueWasEmpty) { |
| // send now if last event was before throttle interval, otherwise delay |
| long delay = now - mLastBatteryLevelChangedSentMs > BATTERY_LEVEL_CHANGE_THROTTLE_MS |
| ? 0 : mLastBatteryLevelChangedSentMs + BATTERY_LEVEL_CHANGE_THROTTLE_MS - now; |
| mHandler.postDelayed(this::sendEnqueuedBatteryLevelChangedEvents, delay); |
| } |
| } |
| |
| private void sendEnqueuedBatteryLevelChangedEvents() { |
| ArrayList<Bundle> events; |
| synchronized (mLock) { |
| events = new ArrayList<>(mBatteryLevelsEventQueue); |
| mBatteryLevelsEventQueue.clear(); |
| } |
| final Intent intent = new Intent(Intent.ACTION_BATTERY_LEVEL_CHANGED); |
| intent.addFlags(Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND); |
| intent.putParcelableArrayListExtra(BatteryManager.EXTRA_EVENTS, events); |
| |
| mContext.sendBroadcastAsUser(intent, UserHandle.ALL, |
| android.Manifest.permission.BATTERY_STATS); |
| mLastBatteryLevelChangedSentMs = SystemClock.elapsedRealtime(); |
| } |
| |
| // TODO: Current code doesn't work since "--unplugged" flag in BSS was purposefully removed. |
| 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 - mHealthInfo.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 - mHealthInfo.batteryLevel)); |
| } catch (NumberFormatException e) { |
| Slog.e(TAG, "Invalid DischargeThresholds GService string: " + |
| durationThresholdString + " or " + dischargeThresholdString); |
| } |
| } |
| } |
| |
| private int getIconLocked(int level) { |
| if (mHealthInfo.batteryStatus == BatteryManager.BATTERY_STATUS_CHARGING) { |
| return com.android.internal.R.drawable.stat_sys_battery_charge; |
| } else if (mHealthInfo.batteryStatus == BatteryManager.BATTERY_STATUS_DISCHARGING) { |
| return com.android.internal.R.drawable.stat_sys_battery; |
| } else if (mHealthInfo.batteryStatus == BatteryManager.BATTERY_STATUS_NOT_CHARGING |
| || mHealthInfo.batteryStatus == BatteryManager.BATTERY_STATUS_FULL) { |
| if (isPoweredLocked(BatteryManager.BATTERY_PLUGGED_ANY) |
| && mHealthInfo.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; |
| } |
| } |
| |
| class Shell extends ShellCommand { |
| @Override |
| public int onCommand(String cmd) { |
| return onShellCommand(this, cmd); |
| } |
| |
| @Override |
| public void onHelp() { |
| PrintWriter pw = getOutPrintWriter(); |
| dumpHelp(pw); |
| } |
| } |
| |
| static void dumpHelp(PrintWriter pw) { |
| pw.println("Battery service (battery) commands:"); |
| pw.println(" help"); |
| pw.println(" Print this help text."); |
| pw.println(" set [-f] [ac|usb|wireless|status|level|temp|present|invalid] <value>"); |
| pw.println(" Force a battery property value, freezing battery state."); |
| pw.println(" -f: force a battery change broadcast be sent, prints new sequence."); |
| pw.println(" unplug [-f]"); |
| pw.println(" Force battery unplugged, freezing battery state."); |
| pw.println(" -f: force a battery change broadcast be sent, prints new sequence."); |
| pw.println(" reset [-f]"); |
| pw.println(" Unfreeze battery state, returning to current hardware values."); |
| pw.println(" -f: force a battery change broadcast be sent, prints new sequence."); |
| } |
| |
| static final int OPTION_FORCE_UPDATE = 1<<0; |
| |
| int parseOptions(Shell shell) { |
| String opt; |
| int opts = 0; |
| while ((opt = shell.getNextOption()) != null) { |
| if ("-f".equals(opt)) { |
| opts |= OPTION_FORCE_UPDATE; |
| } |
| } |
| return opts; |
| } |
| |
| int onShellCommand(Shell shell, String cmd) { |
| if (cmd == null) { |
| return shell.handleDefaultCommands(cmd); |
| } |
| PrintWriter pw = shell.getOutPrintWriter(); |
| switch (cmd) { |
| case "unplug": { |
| int opts = parseOptions(shell); |
| getContext().enforceCallingOrSelfPermission( |
| android.Manifest.permission.DEVICE_POWER, null); |
| if (!mUpdatesStopped) { |
| copy(mLastHealthInfo, mHealthInfo); |
| } |
| mHealthInfo.chargerAcOnline = false; |
| mHealthInfo.chargerUsbOnline = false; |
| mHealthInfo.chargerWirelessOnline = false; |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| mUpdatesStopped = true; |
| processValuesFromShellLocked(pw, opts); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } break; |
| case "set": { |
| int opts = parseOptions(shell); |
| getContext().enforceCallingOrSelfPermission( |
| android.Manifest.permission.DEVICE_POWER, null); |
| final String key = shell.getNextArg(); |
| if (key == null) { |
| pw.println("No property specified"); |
| return -1; |
| |
| } |
| final String value = shell.getNextArg(); |
| if (value == null) { |
| pw.println("No value specified"); |
| return -1; |
| |
| } |
| try { |
| if (!mUpdatesStopped) { |
| copy(mLastHealthInfo, mHealthInfo); |
| } |
| boolean update = true; |
| switch (key) { |
| case "present": |
| mHealthInfo.batteryPresent = Integer.parseInt(value) != 0; |
| break; |
| case "ac": |
| mHealthInfo.chargerAcOnline = Integer.parseInt(value) != 0; |
| break; |
| case "usb": |
| mHealthInfo.chargerUsbOnline = Integer.parseInt(value) != 0; |
| break; |
| case "wireless": |
| mHealthInfo.chargerWirelessOnline = Integer.parseInt(value) != 0; |
| break; |
| case "status": |
| mHealthInfo.batteryStatus = Integer.parseInt(value); |
| break; |
| case "level": |
| mHealthInfo.batteryLevel = Integer.parseInt(value); |
| break; |
| case "counter": |
| mHealthInfo.batteryChargeCounter = Integer.parseInt(value); |
| break; |
| case "temp": |
| mHealthInfo.batteryTemperature = Integer.parseInt(value); |
| break; |
| case "invalid": |
| mInvalidCharger = Integer.parseInt(value); |
| break; |
| default: |
| pw.println("Unknown set option: " + key); |
| update = false; |
| break; |
| } |
| if (update) { |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| mUpdatesStopped = true; |
| processValuesFromShellLocked(pw, opts); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| } catch (NumberFormatException ex) { |
| pw.println("Bad value: " + value); |
| return -1; |
| } |
| } break; |
| case "reset": { |
| int opts = parseOptions(shell); |
| getContext().enforceCallingOrSelfPermission( |
| android.Manifest.permission.DEVICE_POWER, null); |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| if (mUpdatesStopped) { |
| mUpdatesStopped = false; |
| copy(mHealthInfo, mLastHealthInfo); |
| processValuesFromShellLocked(pw, opts); |
| } |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } break; |
| default: |
| return shell.handleDefaultCommands(cmd); |
| } |
| return 0; |
| } |
| |
| private void processValuesFromShellLocked(PrintWriter pw, int opts) { |
| processValuesLocked((opts & OPTION_FORCE_UPDATE) != 0); |
| if ((opts & OPTION_FORCE_UPDATE) != 0) { |
| pw.println(mSequence); |
| } |
| } |
| |
| private void dumpInternal(FileDescriptor fd, 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: " + mHealthInfo.chargerAcOnline); |
| pw.println(" USB powered: " + mHealthInfo.chargerUsbOnline); |
| pw.println(" Wireless powered: " + mHealthInfo.chargerWirelessOnline); |
| pw.println(" Max charging current: " + mHealthInfo.maxChargingCurrent); |
| pw.println(" Max charging voltage: " + mHealthInfo.maxChargingVoltage); |
| pw.println(" Charge counter: " + mHealthInfo.batteryChargeCounter); |
| pw.println(" status: " + mHealthInfo.batteryStatus); |
| pw.println(" health: " + mHealthInfo.batteryHealth); |
| pw.println(" present: " + mHealthInfo.batteryPresent); |
| pw.println(" level: " + mHealthInfo.batteryLevel); |
| pw.println(" scale: " + BATTERY_SCALE); |
| pw.println(" voltage: " + mHealthInfo.batteryVoltage); |
| pw.println(" temperature: " + mHealthInfo.batteryTemperature); |
| pw.println(" technology: " + mHealthInfo.batteryTechnology); |
| } else { |
| Shell shell = new Shell(); |
| shell.exec(mBinderService, null, fd, null, args, null, new ResultReceiver(null)); |
| } |
| } |
| } |
| |
| private void dumpProto(FileDescriptor fd) { |
| final ProtoOutputStream proto = new ProtoOutputStream(fd); |
| |
| synchronized (mLock) { |
| proto.write(BatteryServiceDumpProto.ARE_UPDATES_STOPPED, mUpdatesStopped); |
| int batteryPluggedValue = OsProtoEnums.BATTERY_PLUGGED_NONE; |
| if (mHealthInfo.chargerAcOnline) { |
| batteryPluggedValue = OsProtoEnums.BATTERY_PLUGGED_AC; |
| } else if (mHealthInfo.chargerUsbOnline) { |
| batteryPluggedValue = OsProtoEnums.BATTERY_PLUGGED_USB; |
| } else if (mHealthInfo.chargerWirelessOnline) { |
| batteryPluggedValue = OsProtoEnums.BATTERY_PLUGGED_WIRELESS; |
| } |
| proto.write(BatteryServiceDumpProto.PLUGGED, batteryPluggedValue); |
| proto.write(BatteryServiceDumpProto.MAX_CHARGING_CURRENT, mHealthInfo.maxChargingCurrent); |
| proto.write(BatteryServiceDumpProto.MAX_CHARGING_VOLTAGE, mHealthInfo.maxChargingVoltage); |
| proto.write(BatteryServiceDumpProto.CHARGE_COUNTER, mHealthInfo.batteryChargeCounter); |
| proto.write(BatteryServiceDumpProto.STATUS, mHealthInfo.batteryStatus); |
| proto.write(BatteryServiceDumpProto.HEALTH, mHealthInfo.batteryHealth); |
| proto.write(BatteryServiceDumpProto.IS_PRESENT, mHealthInfo.batteryPresent); |
| proto.write(BatteryServiceDumpProto.LEVEL, mHealthInfo.batteryLevel); |
| proto.write(BatteryServiceDumpProto.SCALE, BATTERY_SCALE); |
| proto.write(BatteryServiceDumpProto.VOLTAGE, mHealthInfo.batteryVoltage); |
| proto.write(BatteryServiceDumpProto.TEMPERATURE, mHealthInfo.batteryTemperature); |
| proto.write(BatteryServiceDumpProto.TECHNOLOGY, mHealthInfo.batteryTechnology); |
| } |
| proto.flush(); |
| } |
| |
| private static void traceBegin(String name) { |
| Trace.traceBegin(Trace.TRACE_TAG_SYSTEM_SERVER, name); |
| } |
| |
| private static void traceEnd() { |
| Trace.traceEnd(Trace.TRACE_TAG_SYSTEM_SERVER); |
| } |
| |
| 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 = mHealthInfo.batteryLevel; |
| final int status = mHealthInfo.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 HealthHalCallback extends IHealthInfoCallback.Stub |
| implements HealthServiceWrapper.Callback { |
| @Override public void healthInfoChanged(android.hardware.health.V2_0.HealthInfo props) { |
| BatteryService.this.update(props); |
| } |
| // on new service registered |
| @Override public void onRegistration(IHealth oldService, IHealth newService, |
| String instance) { |
| if (newService == null) return; |
| |
| traceBegin("HealthUnregisterCallback"); |
| try { |
| if (oldService != null) { |
| int r = oldService.unregisterCallback(this); |
| if (r != Result.SUCCESS) { |
| Slog.w(TAG, "health: cannot unregister previous callback: " + |
| Result.toString(r)); |
| } |
| } |
| } catch (RemoteException ex) { |
| Slog.w(TAG, "health: cannot unregister previous callback (transaction error): " |
| + ex.getMessage()); |
| } finally { |
| traceEnd(); |
| } |
| |
| traceBegin("HealthRegisterCallback"); |
| try { |
| int r = newService.registerCallback(this); |
| if (r != Result.SUCCESS) { |
| Slog.w(TAG, "health: cannot register callback: " + Result.toString(r)); |
| return; |
| } |
| // registerCallback does NOT guarantee that update is called |
| // immediately, so request a manual update here. |
| newService.update(); |
| } catch (RemoteException ex) { |
| Slog.e(TAG, "health: cannot register callback (transaction error): " |
| + ex.getMessage()); |
| } finally { |
| traceEnd(); |
| } |
| } |
| } |
| |
| private final class BinderService extends Binder { |
| @Override protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| if (!DumpUtils.checkDumpPermission(mContext, TAG, pw)) return; |
| |
| if (args.length > 0 && "--proto".equals(args[0])) { |
| dumpProto(fd); |
| } else { |
| dumpInternal(fd, pw, args); |
| } |
| } |
| |
| @Override public void onShellCommand(FileDescriptor in, FileDescriptor out, |
| FileDescriptor err, String[] args, ShellCallback callback, |
| ResultReceiver resultReceiver) { |
| (new Shell()).exec(this, in, out, err, args, callback, resultReceiver); |
| } |
| } |
| |
| // Reduced IBatteryPropertiesRegistrar that only implements getProperty for usage |
| // in BatteryManager. |
| private final class BatteryPropertiesRegistrar extends IBatteryPropertiesRegistrar.Stub { |
| @Override |
| public int getProperty(int id, final BatteryProperty prop) throws RemoteException { |
| traceBegin("HealthGetProperty"); |
| try { |
| IHealth service = mHealthServiceWrapper.getLastService(); |
| if (service == null) throw new RemoteException("no health service"); |
| final MutableInt outResult = new MutableInt(Result.NOT_SUPPORTED); |
| switch(id) { |
| case BatteryManager.BATTERY_PROPERTY_CHARGE_COUNTER: |
| service.getChargeCounter((int result, int value) -> { |
| outResult.value = result; |
| if (result == Result.SUCCESS) prop.setLong(value); |
| }); |
| break; |
| case BatteryManager.BATTERY_PROPERTY_CURRENT_NOW: |
| service.getCurrentNow((int result, int value) -> { |
| outResult.value = result; |
| if (result == Result.SUCCESS) prop.setLong(value); |
| }); |
| break; |
| case BatteryManager.BATTERY_PROPERTY_CURRENT_AVERAGE: |
| service.getCurrentAverage((int result, int value) -> { |
| outResult.value = result; |
| if (result == Result.SUCCESS) prop.setLong(value); |
| }); |
| break; |
| case BatteryManager.BATTERY_PROPERTY_CAPACITY: |
| service.getCapacity((int result, int value) -> { |
| outResult.value = result; |
| if (result == Result.SUCCESS) prop.setLong(value); |
| }); |
| break; |
| case BatteryManager.BATTERY_PROPERTY_STATUS: |
| service.getChargeStatus((int result, int value) -> { |
| outResult.value = result; |
| if (result == Result.SUCCESS) prop.setLong(value); |
| }); |
| break; |
| case BatteryManager.BATTERY_PROPERTY_ENERGY_COUNTER: |
| service.getEnergyCounter((int result, long value) -> { |
| outResult.value = result; |
| if (result == Result.SUCCESS) prop.setLong(value); |
| }); |
| break; |
| } |
| return outResult.value; |
| } finally { |
| traceEnd(); |
| } |
| } |
| @Override |
| public void scheduleUpdate() throws RemoteException { |
| traceBegin("HealthScheduleUpdate"); |
| try { |
| IHealth service = mHealthServiceWrapper.getLastService(); |
| if (service == null) throw new RemoteException("no health service"); |
| service.update(); |
| } finally { |
| traceEnd(); |
| } |
| } |
| } |
| |
| 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 mHealthInfo.batteryLevel; |
| } |
| } |
| |
| @Override |
| public int getBatteryChargeCounter() { |
| synchronized (mLock) { |
| return mHealthInfo.batteryChargeCounter; |
| } |
| } |
| |
| @Override |
| public int getBatteryFullCharge() { |
| synchronized (mLock) { |
| return mHealthInfo.batteryFullCharge; |
| } |
| } |
| |
| @Override |
| public boolean getBatteryLevelLow() { |
| synchronized (mLock) { |
| return mBatteryLevelLow; |
| } |
| } |
| |
| @Override |
| public int getInvalidCharger() { |
| synchronized (mLock) { |
| return mInvalidCharger; |
| } |
| } |
| } |
| |
| /** |
| * HealthServiceWrapper wraps the internal IHealth service and refreshes the service when |
| * necessary. |
| * |
| * On new registration of IHealth service, {@link #onRegistration onRegistration} is called and |
| * the internal service is refreshed. |
| * On death of an existing IHealth service, the internal service is NOT cleared to avoid |
| * race condition between death notification and new service notification. Hence, |
| * a caller must check for transaction errors when calling into the service. |
| * |
| * @hide Should only be used internally. |
| */ |
| @VisibleForTesting |
| static final class HealthServiceWrapper { |
| private static final String TAG = "HealthServiceWrapper"; |
| public static final String INSTANCE_HEALTHD = "backup"; |
| public static final String INSTANCE_VENDOR = "default"; |
| // All interesting instances, sorted by priority high -> low. |
| private static final List<String> sAllInstances = |
| Arrays.asList(INSTANCE_VENDOR, INSTANCE_HEALTHD); |
| |
| private final IServiceNotification mNotification = new Notification(); |
| private final HandlerThread mHandlerThread = new HandlerThread("HealthServiceRefresh"); |
| // These variables are fixed after init. |
| private Callback mCallback; |
| private IHealthSupplier mHealthSupplier; |
| private String mInstanceName; |
| |
| // Last IHealth service received. |
| private final AtomicReference<IHealth> mLastService = new AtomicReference<>(); |
| |
| /** |
| * init should be called after constructor. For testing purposes, init is not called by |
| * constructor. |
| */ |
| HealthServiceWrapper() { |
| } |
| |
| IHealth getLastService() { |
| return mLastService.get(); |
| } |
| |
| /** |
| * Start monitoring registration of new IHealth services. Only instances that are in |
| * {@code sAllInstances} and in device / framework manifest are used. This function should |
| * only be called once. |
| * |
| * mCallback.onRegistration() is called synchronously (aka in init thread) before |
| * this method returns. |
| * |
| * @throws RemoteException transaction error when talking to IServiceManager |
| * @throws NoSuchElementException if one of the following cases: |
| * - No service manager; |
| * - none of {@code sAllInstances} are in manifests (i.e. not |
| * available on this device), or none of these instances are available to current |
| * process. |
| * @throws NullPointerException when callback is null or supplier is null |
| */ |
| void init(Callback callback, |
| IServiceManagerSupplier managerSupplier, |
| IHealthSupplier healthSupplier) |
| throws RemoteException, NoSuchElementException, NullPointerException { |
| if (callback == null || managerSupplier == null || healthSupplier == null) |
| throw new NullPointerException(); |
| |
| IServiceManager manager; |
| |
| mCallback = callback; |
| mHealthSupplier = healthSupplier; |
| |
| // Initialize mLastService and call callback for the first time (in init thread) |
| IHealth newService = null; |
| for (String name : sAllInstances) { |
| traceBegin("HealthInitGetService_" + name); |
| try { |
| newService = healthSupplier.get(name); |
| } catch (NoSuchElementException ex) { |
| /* ignored, handled below */ |
| } finally { |
| traceEnd(); |
| } |
| if (newService != null) { |
| mInstanceName = name; |
| mLastService.set(newService); |
| break; |
| } |
| } |
| |
| if (mInstanceName == null || newService == null) { |
| throw new NoSuchElementException(String.format( |
| "No IHealth service instance among %s is available. Perhaps no permission?", |
| sAllInstances.toString())); |
| } |
| mCallback.onRegistration(null, newService, mInstanceName); |
| |
| // Register for future service registrations |
| traceBegin("HealthInitRegisterNotification"); |
| mHandlerThread.start(); |
| try { |
| managerSupplier.get().registerForNotifications( |
| IHealth.kInterfaceName, mInstanceName, mNotification); |
| } finally { |
| traceEnd(); |
| } |
| Slog.i(TAG, "health: HealthServiceWrapper listening to instance " + mInstanceName); |
| } |
| |
| @VisibleForTesting |
| HandlerThread getHandlerThread() { |
| return mHandlerThread; |
| } |
| |
| interface Callback { |
| /** |
| * This function is invoked asynchronously when a new and related IServiceNotification |
| * is received. |
| * @param service the recently retrieved service from IServiceManager. |
| * Can be a dead service before service notification of a new service is delivered. |
| * Implementation must handle cases for {@link RemoteException}s when calling |
| * into service. |
| * @param instance instance name. |
| */ |
| void onRegistration(IHealth oldService, IHealth newService, String instance); |
| } |
| |
| /** |
| * Supplier of services. |
| * Must not return null; throw {@link NoSuchElementException} if a service is not available. |
| */ |
| interface IServiceManagerSupplier { |
| default IServiceManager get() throws NoSuchElementException, RemoteException { |
| return IServiceManager.getService(); |
| } |
| } |
| /** |
| * Supplier of services. |
| * Must not return null; throw {@link NoSuchElementException} if a service is not available. |
| */ |
| interface IHealthSupplier { |
| default IHealth get(String name) throws NoSuchElementException, RemoteException { |
| return IHealth.getService(name, true /* retry */); |
| } |
| } |
| |
| private class Notification extends IServiceNotification.Stub { |
| @Override |
| public final void onRegistration(String interfaceName, String instanceName, |
| boolean preexisting) { |
| if (!IHealth.kInterfaceName.equals(interfaceName)) return; |
| if (!mInstanceName.equals(instanceName)) return; |
| |
| // This runnable only runs on mHandlerThread and ordering is ensured, hence |
| // no locking is needed inside the runnable. |
| mHandlerThread.getThreadHandler().post(new Runnable() { |
| @Override |
| public void run() { |
| try { |
| IHealth newService = mHealthSupplier.get(mInstanceName); |
| IHealth oldService = mLastService.getAndSet(newService); |
| |
| // preexisting may be inaccurate (race). Check for equality here. |
| if (Objects.equals(newService, oldService)) return; |
| |
| Slog.i(TAG, "health: new instance registered " + mInstanceName); |
| mCallback.onRegistration(oldService, newService, mInstanceName); |
| } catch (NoSuchElementException | RemoteException ex) { |
| Slog.e(TAG, "health: Cannot get instance '" + mInstanceName |
| + "': " + ex.getMessage() + ". Perhaps no permission?"); |
| } |
| } |
| }); |
| } |
| } |
| } |
| } |
