| /* |
| * Copyright (C) 2018 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.power.batterysaver; |
| |
| import android.app.Notification; |
| import android.app.NotificationChannel; |
| import android.app.NotificationManager; |
| import android.app.PendingIntent; |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.res.Resources; |
| import android.database.ContentObserver; |
| import android.os.BatterySaverPolicyConfig; |
| import android.os.Handler; |
| import android.os.PowerManager; |
| import android.os.SystemClock; |
| import android.os.UserHandle; |
| import android.provider.Settings; |
| import android.util.Slog; |
| import android.util.proto.ProtoOutputStream; |
| |
| import com.android.internal.R; |
| import com.android.internal.annotations.GuardedBy; |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.os.BackgroundThread; |
| import com.android.server.EventLogTags; |
| import com.android.server.power.BatterySaverStateMachineProto; |
| |
| import java.io.PrintWriter; |
| |
| /** |
| * Decides when to enable / disable battery saver. |
| * |
| * IMPORTANT: This class shares the power manager lock, which is very low in the lock hierarchy. |
| * Do not call out with the lock held. (Settings provider is okay.) |
| * |
| * Test: atest com.android.server.power.batterysaver.BatterySaverStateMachineTest |
| */ |
| public class BatterySaverStateMachine { |
| private static final String TAG = "BatterySaverStateMachine"; |
| private static final String DYNAMIC_MODE_NOTIF_CHANNEL_ID = "dynamic_mode_notification"; |
| private static final int DYNAMIC_MODE_NOTIFICATION_ID = 1992; |
| private final Object mLock; |
| |
| private static final boolean DEBUG = BatterySaverPolicy.DEBUG; |
| |
| private static final long ADAPTIVE_CHANGE_TIMEOUT_MS = 24 * 60 * 60 * 1000L; |
| |
| private final Context mContext; |
| private final BatterySaverController mBatterySaverController; |
| |
| /** Whether the system has booted. */ |
| @GuardedBy("mLock") |
| private boolean mBootCompleted; |
| |
| /** Whether global settings have been loaded already. */ |
| @GuardedBy("mLock") |
| private boolean mSettingsLoaded; |
| |
| /** Whether the first battery status has arrived. */ |
| @GuardedBy("mLock") |
| private boolean mBatteryStatusSet; |
| |
| /** Whether the device is connected to any power source. */ |
| @GuardedBy("mLock") |
| private boolean mIsPowered; |
| |
| /** Current battery level in %, 0-100. (Currently only used in dumpsys.) */ |
| @GuardedBy("mLock") |
| private int mBatteryLevel; |
| |
| /** Whether the battery level is considered to be "low" or not. */ |
| @GuardedBy("mLock") |
| private boolean mIsBatteryLevelLow; |
| |
| /** Previously known value of Settings.Global.LOW_POWER_MODE. */ |
| @GuardedBy("mLock") |
| private boolean mSettingBatterySaverEnabled; |
| |
| /** Previously known value of Settings.Global.LOW_POWER_MODE_STICKY. */ |
| @GuardedBy("mLock") |
| private boolean mSettingBatterySaverEnabledSticky; |
| |
| /** Config flag to track if battery saver's sticky behaviour is disabled. */ |
| private final boolean mBatterySaverStickyBehaviourDisabled; |
| |
| /** |
| * Whether or not to end sticky battery saver upon reaching a level specified by |
| * {@link #mSettingBatterySaverStickyAutoDisableThreshold}. |
| */ |
| @GuardedBy("mLock") |
| private boolean mSettingBatterySaverStickyAutoDisableEnabled; |
| |
| /** |
| * The battery level at which to end sticky battery saver. Only useful if |
| * {@link #mSettingBatterySaverStickyAutoDisableEnabled} is {@code true}. |
| */ |
| @GuardedBy("mLock") |
| private int mSettingBatterySaverStickyAutoDisableThreshold; |
| |
| /** Config flag to track default disable threshold for Dynamic Power Savings enabled battery |
| * saver. */ |
| @GuardedBy("mLock") |
| private final int mDynamicPowerSavingsDefaultDisableThreshold; |
| |
| /** |
| * Previously known value of Settings.Global.LOW_POWER_MODE_TRIGGER_LEVEL. |
| * (Currently only used in dumpsys.) |
| */ |
| @GuardedBy("mLock") |
| private int mSettingBatterySaverTriggerThreshold; |
| |
| /** Previously known value of Settings.Global.AUTOMATIC_POWER_SAVER_MODE. */ |
| @GuardedBy("mLock") |
| private int mSettingAutomaticBatterySaver; |
| |
| /** When to disable battery saver again if it was enabled due to an external suggestion. |
| * Corresponds to Settings.Global.DYNAMIC_POWER_SAVINGS_DISABLE_THRESHOLD. |
| */ |
| @GuardedBy("mLock") |
| private int mDynamicPowerSavingsDisableThreshold; |
| |
| /** |
| * Whether we've received a suggestion that battery saver should be on from an external app. |
| * Updates when Settings.Global.DYNAMIC_POWER_SAVINGS_ENABLED changes. |
| */ |
| @GuardedBy("mLock") |
| private boolean mDynamicPowerSavingsBatterySaver; |
| |
| /** |
| * Whether BS has been manually disabled while the battery level is low, in which case we |
| * shouldn't auto re-enable it until the battery level is not low. |
| */ |
| @GuardedBy("mLock") |
| private boolean mBatterySaverSnoozing; |
| |
| /** |
| * Last reason passed to {@link #enableBatterySaverLocked}. |
| */ |
| @GuardedBy("mLock") |
| private int mLastChangedIntReason; |
| |
| /** |
| * Last reason passed to {@link #enableBatterySaverLocked}. |
| */ |
| @GuardedBy("mLock") |
| private String mLastChangedStrReason; |
| |
| /** |
| * The last time adaptive battery saver was changed by an external service, using elapsed |
| * realtime as the timebase. |
| */ |
| @GuardedBy("mLock") |
| private long mLastAdaptiveBatterySaverChangedExternallyElapsed; |
| |
| private final ContentObserver mSettingsObserver = new ContentObserver(null) { |
| @Override |
| public void onChange(boolean selfChange) { |
| synchronized (mLock) { |
| refreshSettingsLocked(); |
| } |
| } |
| }; |
| |
| public BatterySaverStateMachine(Object lock, |
| Context context, BatterySaverController batterySaverController) { |
| mLock = lock; |
| mContext = context; |
| mBatterySaverController = batterySaverController; |
| |
| mBatterySaverStickyBehaviourDisabled = mContext.getResources().getBoolean( |
| com.android.internal.R.bool.config_batterySaverStickyBehaviourDisabled); |
| mDynamicPowerSavingsDefaultDisableThreshold = mContext.getResources().getInteger( |
| com.android.internal.R.integer.config_dynamicPowerSavingsDefaultDisableThreshold); |
| } |
| |
| private boolean isAutoBatterySaverConfiguredLocked() { |
| return mSettingBatterySaverTriggerThreshold > 0; |
| } |
| |
| /** |
| * {@link com.android.server.power.PowerManagerService} calls it when the system is booted. |
| */ |
| public void onBootCompleted() { |
| if (DEBUG) { |
| Slog.d(TAG, "onBootCompleted"); |
| } |
| // Just booted. We don't want LOW_POWER_MODE to be persisted, so just always clear it. |
| putGlobalSetting(Settings.Global.LOW_POWER_MODE, 0); |
| |
| // This is called with the power manager lock held. Don't do anything that may call to |
| // upper services. (e.g. don't call into AM directly) |
| // So use a BG thread. |
| runOnBgThread(() -> { |
| |
| final ContentResolver cr = mContext.getContentResolver(); |
| cr.registerContentObserver(Settings.Global.getUriFor( |
| Settings.Global.LOW_POWER_MODE), |
| false, mSettingsObserver, UserHandle.USER_SYSTEM); |
| cr.registerContentObserver(Settings.Global.getUriFor( |
| Settings.Global.LOW_POWER_MODE_STICKY), |
| false, mSettingsObserver, UserHandle.USER_SYSTEM); |
| cr.registerContentObserver(Settings.Global.getUriFor( |
| Settings.Global.LOW_POWER_MODE_TRIGGER_LEVEL), |
| false, mSettingsObserver, UserHandle.USER_SYSTEM); |
| cr.registerContentObserver(Settings.Global.getUriFor( |
| Settings.Global.AUTOMATIC_POWER_SAVER_MODE), |
| false, mSettingsObserver, UserHandle.USER_SYSTEM); |
| cr.registerContentObserver(Settings.Global.getUriFor( |
| Settings.Global.DYNAMIC_POWER_SAVINGS_ENABLED), |
| false, mSettingsObserver, UserHandle.USER_SYSTEM); |
| cr.registerContentObserver(Settings.Global.getUriFor( |
| Settings.Global.DYNAMIC_POWER_SAVINGS_DISABLE_THRESHOLD), |
| false, mSettingsObserver, UserHandle.USER_SYSTEM); |
| cr.registerContentObserver(Settings.Global.getUriFor( |
| Settings.Global.LOW_POWER_MODE_STICKY_AUTO_DISABLE_ENABLED), |
| false, mSettingsObserver, UserHandle.USER_SYSTEM); |
| cr.registerContentObserver(Settings.Global.getUriFor( |
| Settings.Global.LOW_POWER_MODE_STICKY_AUTO_DISABLE_LEVEL), |
| false, mSettingsObserver, UserHandle.USER_SYSTEM); |
| |
| synchronized (mLock) { |
| |
| mBootCompleted = true; |
| |
| refreshSettingsLocked(); |
| |
| doAutoBatterySaverLocked(); |
| } |
| }); |
| } |
| |
| /** |
| * Run a {@link Runnable} on a background handler. |
| */ |
| @VisibleForTesting |
| void runOnBgThread(Runnable r) { |
| BackgroundThread.getHandler().post(r); |
| } |
| |
| /** |
| * Run a {@link Runnable} on a background handler, but lazily. If the same {@link Runnable} is |
| * already registered, it'll be first removed before being re-posted. |
| */ |
| @VisibleForTesting |
| void runOnBgThreadLazy(Runnable r, int delayMillis) { |
| final Handler h = BackgroundThread.getHandler(); |
| h.removeCallbacks(r); |
| h.postDelayed(r, delayMillis); |
| } |
| |
| @GuardedBy("mLock") |
| private void refreshSettingsLocked() { |
| final boolean lowPowerModeEnabled = getGlobalSetting( |
| Settings.Global.LOW_POWER_MODE, 0) != 0; |
| final boolean lowPowerModeEnabledSticky = getGlobalSetting( |
| Settings.Global.LOW_POWER_MODE_STICKY, 0) != 0; |
| final boolean dynamicPowerSavingsBatterySaver = getGlobalSetting( |
| Settings.Global.DYNAMIC_POWER_SAVINGS_ENABLED, 0) != 0; |
| final int lowPowerModeTriggerLevel = getGlobalSetting( |
| Settings.Global.LOW_POWER_MODE_TRIGGER_LEVEL, 0); |
| final int automaticBatterySaverMode = getGlobalSetting( |
| Settings.Global.AUTOMATIC_POWER_SAVER_MODE, |
| PowerManager.POWER_SAVER_MODE_PERCENTAGE); |
| final int dynamicPowerSavingsDisableThreshold = getGlobalSetting( |
| Settings.Global.DYNAMIC_POWER_SAVINGS_DISABLE_THRESHOLD, |
| mDynamicPowerSavingsDefaultDisableThreshold); |
| final boolean isStickyAutoDisableEnabled = getGlobalSetting( |
| Settings.Global.LOW_POWER_MODE_STICKY_AUTO_DISABLE_ENABLED, 0) != 0; |
| final int stickyAutoDisableThreshold = getGlobalSetting( |
| Settings.Global.LOW_POWER_MODE_STICKY_AUTO_DISABLE_LEVEL, 90); |
| |
| setSettingsLocked(lowPowerModeEnabled, lowPowerModeEnabledSticky, |
| lowPowerModeTriggerLevel, |
| isStickyAutoDisableEnabled, stickyAutoDisableThreshold, |
| automaticBatterySaverMode, |
| dynamicPowerSavingsBatterySaver, dynamicPowerSavingsDisableThreshold); |
| } |
| |
| /** |
| * {@link com.android.server.power.PowerManagerService} calls it when relevant global settings |
| * have changed. |
| * |
| * Note this will be called before {@link #onBootCompleted} too. |
| */ |
| @GuardedBy("mLock") |
| @VisibleForTesting |
| void setSettingsLocked(boolean batterySaverEnabled, boolean batterySaverEnabledSticky, |
| int batterySaverTriggerThreshold, |
| boolean isStickyAutoDisableEnabled, int stickyAutoDisableThreshold, |
| int automaticBatterySaver, |
| boolean dynamicPowerSavingsBatterySaver, int dynamicPowerSavingsDisableThreshold) { |
| if (DEBUG) { |
| Slog.d(TAG, "setSettings: enabled=" + batterySaverEnabled |
| + " sticky=" + batterySaverEnabledSticky |
| + " threshold=" + batterySaverTriggerThreshold |
| + " stickyAutoDisableEnabled=" + isStickyAutoDisableEnabled |
| + " stickyAutoDisableThreshold=" + stickyAutoDisableThreshold |
| + " automaticBatterySaver=" + automaticBatterySaver |
| + " dynamicPowerSavingsBatterySaver=" + dynamicPowerSavingsBatterySaver |
| + " dynamicPowerSavingsDisableThreshold=" |
| + dynamicPowerSavingsDisableThreshold); |
| } |
| |
| mSettingsLoaded = true; |
| |
| // Set sensible limits. |
| stickyAutoDisableThreshold = Math.max(stickyAutoDisableThreshold, |
| batterySaverTriggerThreshold); |
| |
| final boolean enabledChanged = mSettingBatterySaverEnabled != batterySaverEnabled; |
| final boolean stickyChanged = |
| mSettingBatterySaverEnabledSticky != batterySaverEnabledSticky; |
| final boolean thresholdChanged |
| = mSettingBatterySaverTriggerThreshold != batterySaverTriggerThreshold; |
| final boolean stickyAutoDisableEnabledChanged = |
| mSettingBatterySaverStickyAutoDisableEnabled != isStickyAutoDisableEnabled; |
| final boolean stickyAutoDisableThresholdChanged = |
| mSettingBatterySaverStickyAutoDisableThreshold != stickyAutoDisableThreshold; |
| final boolean automaticModeChanged = mSettingAutomaticBatterySaver != automaticBatterySaver; |
| final boolean dynamicPowerSavingsThresholdChanged = |
| mDynamicPowerSavingsDisableThreshold != dynamicPowerSavingsDisableThreshold; |
| final boolean dynamicPowerSavingsBatterySaverChanged = |
| mDynamicPowerSavingsBatterySaver != dynamicPowerSavingsBatterySaver; |
| |
| if (!(enabledChanged || stickyChanged || thresholdChanged || automaticModeChanged |
| || stickyAutoDisableEnabledChanged || stickyAutoDisableThresholdChanged |
| || dynamicPowerSavingsThresholdChanged || dynamicPowerSavingsBatterySaverChanged)) { |
| return; |
| } |
| |
| mSettingBatterySaverEnabled = batterySaverEnabled; |
| mSettingBatterySaverEnabledSticky = batterySaverEnabledSticky; |
| mSettingBatterySaverTriggerThreshold = batterySaverTriggerThreshold; |
| mSettingBatterySaverStickyAutoDisableEnabled = isStickyAutoDisableEnabled; |
| mSettingBatterySaverStickyAutoDisableThreshold = stickyAutoDisableThreshold; |
| mSettingAutomaticBatterySaver = automaticBatterySaver; |
| mDynamicPowerSavingsDisableThreshold = dynamicPowerSavingsDisableThreshold; |
| mDynamicPowerSavingsBatterySaver = dynamicPowerSavingsBatterySaver; |
| |
| if (thresholdChanged) { |
| // To avoid spamming the event log, we throttle logging here. |
| runOnBgThreadLazy(mThresholdChangeLogger, 2000); |
| } |
| |
| if (enabledChanged) { |
| final String reason = batterySaverEnabled |
| ? "Global.low_power changed to 1" : "Global.low_power changed to 0"; |
| enableBatterySaverLocked(/*enable=*/ batterySaverEnabled, /*manual=*/ true, |
| BatterySaverController.REASON_SETTING_CHANGED, reason); |
| } |
| } |
| |
| private final Runnable mThresholdChangeLogger = () -> { |
| EventLogTags.writeBatterySaverSetting(mSettingBatterySaverTriggerThreshold); |
| }; |
| |
| /** |
| * {@link com.android.server.power.PowerManagerService} calls it when battery state changes. |
| * |
| * Note this may be called before {@link #onBootCompleted} too. |
| */ |
| public void setBatteryStatus(boolean newPowered, int newLevel, boolean newBatteryLevelLow) { |
| if (DEBUG) { |
| Slog.d(TAG, "setBatteryStatus: powered=" + newPowered + " level=" + newLevel |
| + " low=" + newBatteryLevelLow); |
| } |
| synchronized (mLock) { |
| mBatteryStatusSet = true; |
| |
| final boolean poweredChanged = mIsPowered != newPowered; |
| final boolean levelChanged = mBatteryLevel != newLevel; |
| final boolean lowChanged = mIsBatteryLevelLow != newBatteryLevelLow; |
| |
| if (!(poweredChanged || levelChanged || lowChanged)) { |
| return; |
| } |
| |
| mIsPowered = newPowered; |
| mBatteryLevel = newLevel; |
| mIsBatteryLevelLow = newBatteryLevelLow; |
| |
| doAutoBatterySaverLocked(); |
| } |
| } |
| |
| /** |
| * Enable or disable the current adaptive battery saver policy. This may not change what's in |
| * effect if full battery saver is also enabled. |
| */ |
| public boolean setAdaptiveBatterySaverEnabled(boolean enabled) { |
| if (DEBUG) { |
| Slog.d(TAG, "setAdaptiveBatterySaverEnabled: enabled=" + enabled); |
| } |
| synchronized (mLock) { |
| mLastAdaptiveBatterySaverChangedExternallyElapsed = SystemClock.elapsedRealtime(); |
| return mBatterySaverController.setAdaptivePolicyEnabledLocked( |
| enabled, BatterySaverController.REASON_ADAPTIVE_DYNAMIC_POWER_SAVINGS_CHANGED); |
| } |
| } |
| |
| /** |
| * Change the adaptive battery saver policy. |
| */ |
| public boolean setAdaptiveBatterySaverPolicy(BatterySaverPolicyConfig config) { |
| if (DEBUG) { |
| Slog.d(TAG, "setAdaptiveBatterySaverPolicy: config=" + config); |
| } |
| |
| synchronized (mLock) { |
| mLastAdaptiveBatterySaverChangedExternallyElapsed = SystemClock.elapsedRealtime(); |
| return mBatterySaverController.setAdaptivePolicyLocked(config, |
| BatterySaverController.REASON_ADAPTIVE_DYNAMIC_POWER_SAVINGS_CHANGED); |
| } |
| } |
| |
| @GuardedBy("mLock") |
| private boolean isBatteryLowLocked() { |
| final boolean percentageLow = |
| mSettingAutomaticBatterySaver == PowerManager.POWER_SAVER_MODE_PERCENTAGE |
| && mIsBatteryLevelLow; |
| final boolean dynamicPowerSavingsLow = |
| mSettingAutomaticBatterySaver == PowerManager.POWER_SAVER_MODE_DYNAMIC |
| && mBatteryLevel <= mDynamicPowerSavingsDisableThreshold; |
| return percentageLow || dynamicPowerSavingsLow; |
| } |
| |
| /** |
| * Decide whether to auto-start / stop battery saver. |
| */ |
| @GuardedBy("mLock") |
| private void doAutoBatterySaverLocked() { |
| if (DEBUG) { |
| Slog.d(TAG, "doAutoBatterySaverLocked: mBootCompleted=" + mBootCompleted |
| + " mSettingsLoaded=" + mSettingsLoaded |
| + " mBatteryStatusSet=" + mBatteryStatusSet |
| + " mIsBatteryLevelLow=" + mIsBatteryLevelLow |
| + " mBatterySaverSnoozing=" + mBatterySaverSnoozing |
| + " mIsPowered=" + mIsPowered |
| + " mSettingAutomaticBatterySaver=" + mSettingAutomaticBatterySaver |
| + " mSettingBatterySaverEnabledSticky=" + mSettingBatterySaverEnabledSticky |
| + " mSettingBatterySaverStickyAutoDisableEnabled=" |
| + mSettingBatterySaverStickyAutoDisableEnabled); |
| } |
| if (!(mBootCompleted && mSettingsLoaded && mBatteryStatusSet)) { |
| return; // Not fully initialized yet. |
| } |
| |
| if (!isBatteryLowLocked()) { |
| updateSnoozingLocked(false, "Battery not low"); |
| } |
| |
| if (SystemClock.elapsedRealtime() - mLastAdaptiveBatterySaverChangedExternallyElapsed |
| > ADAPTIVE_CHANGE_TIMEOUT_MS) { |
| mBatterySaverController.setAdaptivePolicyEnabledLocked( |
| false, BatterySaverController.REASON_TIMEOUT); |
| mBatterySaverController.resetAdaptivePolicyLocked( |
| BatterySaverController.REASON_TIMEOUT); |
| } |
| |
| if (mIsPowered) { |
| updateSnoozingLocked(false, "Plugged in"); |
| enableBatterySaverLocked(/*enable=*/ false, /*manual=*/ false, |
| BatterySaverController.REASON_PLUGGED_IN, |
| "Plugged in"); |
| |
| if (mBatteryLevel >= 80 /* Arbitrary level */) { |
| mBatterySaverController.setAdaptivePolicyEnabledLocked( |
| false, BatterySaverController.REASON_PLUGGED_IN); |
| } |
| |
| } else if (mSettingBatterySaverEnabledSticky && !mBatterySaverStickyBehaviourDisabled) { |
| if (mSettingBatterySaverStickyAutoDisableEnabled |
| && mBatteryLevel >= mSettingBatterySaverStickyAutoDisableThreshold) { |
| setStickyActive(false); |
| } else { |
| // Re-enable BS. |
| enableBatterySaverLocked(/*enable=*/ true, /*manual=*/ true, |
| BatterySaverController.REASON_STICKY_RESTORE, |
| "Sticky restore"); |
| } |
| |
| } else if (mSettingAutomaticBatterySaver |
| == PowerManager.POWER_SAVER_MODE_PERCENTAGE |
| && isAutoBatterySaverConfiguredLocked()) { |
| if (mIsBatteryLevelLow && !mBatterySaverSnoozing) { |
| enableBatterySaverLocked(/*enable=*/ true, /*manual=*/ false, |
| BatterySaverController.REASON_PERCENTAGE_AUTOMATIC_ON, |
| "Percentage Auto ON"); |
| } else { |
| // Battery not low |
| enableBatterySaverLocked(/*enable=*/ false, /*manual=*/ false, |
| BatterySaverController.REASON_PERCENTAGE_AUTOMATIC_OFF, |
| "Percentage Auto OFF"); |
| } |
| } else if (mSettingAutomaticBatterySaver |
| == PowerManager.POWER_SAVER_MODE_DYNAMIC) { |
| if (mBatteryLevel >= mDynamicPowerSavingsDisableThreshold) { |
| enableBatterySaverLocked(/*enable=*/ false, /*manual=*/ false, |
| BatterySaverController.REASON_DYNAMIC_POWER_SAVINGS_AUTOMATIC_OFF, |
| "Dynamic Warning Auto OFF"); |
| } else if (mDynamicPowerSavingsBatterySaver && !mBatterySaverSnoozing) { |
| enableBatterySaverLocked(/*enable=*/ true, /*manual=*/ false, |
| BatterySaverController.REASON_DYNAMIC_POWER_SAVINGS_AUTOMATIC_ON, |
| "Dynamic Warning Auto ON"); |
| } |
| } |
| // do nothing if automatic battery saver mode = PERCENTAGE and low warning threshold = 0% |
| } |
| |
| /** |
| * {@link com.android.server.power.PowerManagerService} calls it when |
| * {@link android.os.PowerManager#setPowerSaveMode} is called. |
| * |
| * Note this could? be called before {@link #onBootCompleted} too. |
| */ |
| public void setBatterySaverEnabledManually(boolean enabled) { |
| if (DEBUG) { |
| Slog.d(TAG, "setBatterySaverEnabledManually: enabled=" + enabled); |
| } |
| synchronized (mLock) { |
| enableBatterySaverLocked(/*enable=*/ enabled, /*manual=*/ true, |
| (enabled ? BatterySaverController.REASON_MANUAL_ON |
| : BatterySaverController.REASON_MANUAL_OFF), |
| (enabled ? "Manual ON" : "Manual OFF")); |
| } |
| } |
| |
| /** |
| * Actually enable / disable battery saver. Write the new state to the global settings |
| * and propagate it to {@link #mBatterySaverController}. |
| */ |
| @GuardedBy("mLock") |
| private void enableBatterySaverLocked(boolean enable, boolean manual, int intReason, |
| String strReason) { |
| if (DEBUG) { |
| Slog.d(TAG, "enableBatterySaver: enable=" + enable + " manual=" + manual |
| + " reason=" + strReason + "(" + intReason + ")"); |
| } |
| final boolean wasEnabled = mBatterySaverController.isFullEnabled(); |
| |
| if (wasEnabled == enable) { |
| if (DEBUG) { |
| Slog.d(TAG, "Already " + (enable ? "enabled" : "disabled")); |
| } |
| return; |
| } |
| if (enable && mIsPowered) { |
| if (DEBUG) Slog.d(TAG, "Can't enable: isPowered"); |
| return; |
| } |
| mLastChangedIntReason = intReason; |
| mLastChangedStrReason = strReason; |
| |
| if (manual) { |
| if (enable) { |
| updateSnoozingLocked(false, "Manual snooze OFF"); |
| } else { |
| // When battery saver is disabled manually (while battery saver is enabled) |
| // when the battery level is low, we "snooze" BS -- i.e. disable auto battery saver. |
| // We resume auto-BS once the battery level is not low, or the device is plugged in. |
| if (mBatterySaverController.isFullEnabled() && isBatteryLowLocked()) { |
| updateSnoozingLocked(true, "Manual snooze"); |
| } |
| // TODO: maybe turn off adaptive if it's on and advertiseIsEnabled is true |
| } |
| } |
| |
| mSettingBatterySaverEnabled = enable; |
| putGlobalSetting(Settings.Global.LOW_POWER_MODE, enable ? 1 : 0); |
| |
| if (manual) { |
| setStickyActive(!mBatterySaverStickyBehaviourDisabled && enable); |
| } |
| mBatterySaverController.enableBatterySaver(enable, intReason); |
| |
| // Handle triggering the notification to show/hide when appropriate |
| if (intReason == BatterySaverController.REASON_DYNAMIC_POWER_SAVINGS_AUTOMATIC_ON) { |
| runOnBgThread(this::triggerDynamicModeNotification); |
| } else if (!enable) { |
| runOnBgThread(this::hideDynamicModeNotification); |
| } |
| |
| if (DEBUG) { |
| Slog.d(TAG, "Battery saver: Enabled=" + enable |
| + " manual=" + manual |
| + " reason=" + strReason + "(" + intReason + ")"); |
| } |
| } |
| |
| @VisibleForTesting |
| void triggerDynamicModeNotification() { |
| NotificationManager manager = mContext.getSystemService(NotificationManager.class); |
| ensureNotificationChannelExists(manager); |
| |
| manager.notify(DYNAMIC_MODE_NOTIFICATION_ID, buildNotification()); |
| } |
| |
| private void ensureNotificationChannelExists(NotificationManager manager) { |
| NotificationChannel channel = new NotificationChannel( |
| DYNAMIC_MODE_NOTIF_CHANNEL_ID, |
| mContext.getText( |
| R.string.dynamic_mode_notification_channel_name), |
| NotificationManager.IMPORTANCE_DEFAULT); |
| channel.setSound(null, null); |
| manager.createNotificationChannel(channel); |
| } |
| |
| private Notification buildNotification() { |
| Resources res = mContext.getResources(); |
| Intent intent = new Intent(Intent.ACTION_POWER_USAGE_SUMMARY); |
| intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); |
| PendingIntent batterySaverIntent = PendingIntent.getActivity( |
| mContext, 0 /* requestCode */, intent, PendingIntent.FLAG_UPDATE_CURRENT); |
| |
| return new Notification.Builder(mContext, DYNAMIC_MODE_NOTIF_CHANNEL_ID) |
| .setSmallIcon(R.drawable.ic_battery) |
| .setContentTitle(res.getString(R.string.dynamic_mode_notification_title)) |
| .setContentText(res.getString(R.string.dynamic_mode_notification_summary)) |
| .setContentIntent(batterySaverIntent) |
| .setOnlyAlertOnce(true) |
| .build(); |
| } |
| |
| private void hideDynamicModeNotification() { |
| NotificationManager manager = mContext.getSystemService(NotificationManager.class); |
| manager.cancel(DYNAMIC_MODE_NOTIFICATION_ID); |
| } |
| |
| @GuardedBy("mLock") |
| private void updateSnoozingLocked(boolean snoozing, String reason) { |
| if (mBatterySaverSnoozing == snoozing) { |
| return; |
| } |
| if (DEBUG) Slog.d(TAG, "Snooze: " + (snoozing ? "start" : "stop") + " reason=" + reason); |
| mBatterySaverSnoozing = snoozing; |
| } |
| |
| private void setStickyActive(boolean active) { |
| mSettingBatterySaverEnabledSticky = active; |
| putGlobalSetting(Settings.Global.LOW_POWER_MODE_STICKY, |
| mSettingBatterySaverEnabledSticky ? 1 : 0); |
| } |
| |
| @VisibleForTesting |
| protected void putGlobalSetting(String key, int value) { |
| Settings.Global.putInt(mContext.getContentResolver(), key, value); |
| } |
| |
| @VisibleForTesting |
| protected int getGlobalSetting(String key, int defValue) { |
| return Settings.Global.getInt(mContext.getContentResolver(), key, defValue); |
| } |
| |
| public void dump(PrintWriter pw) { |
| synchronized (mLock) { |
| pw.println(); |
| pw.println("Battery saver state machine:"); |
| |
| pw.print(" Enabled="); |
| pw.println(mBatterySaverController.isEnabled()); |
| pw.print(" full="); |
| pw.println(mBatterySaverController.isFullEnabled()); |
| pw.print(" adaptive="); |
| pw.print(mBatterySaverController.isAdaptiveEnabled()); |
| if (mBatterySaverController.isAdaptiveEnabled()) { |
| pw.print(" (advertise="); |
| pw.print( |
| mBatterySaverController.getBatterySaverPolicy().shouldAdvertiseIsEnabled()); |
| pw.print(")"); |
| } |
| pw.println(); |
| |
| pw.print(" mLastChangedIntReason="); |
| pw.println(mLastChangedIntReason); |
| pw.print(" mLastChangedStrReason="); |
| pw.println(mLastChangedStrReason); |
| |
| pw.print(" mBootCompleted="); |
| pw.println(mBootCompleted); |
| pw.print(" mSettingsLoaded="); |
| pw.println(mSettingsLoaded); |
| pw.print(" mBatteryStatusSet="); |
| pw.println(mBatteryStatusSet); |
| |
| pw.print(" mBatterySaverSnoozing="); |
| pw.println(mBatterySaverSnoozing); |
| |
| pw.print(" mIsPowered="); |
| pw.println(mIsPowered); |
| pw.print(" mBatteryLevel="); |
| pw.println(mBatteryLevel); |
| pw.print(" mIsBatteryLevelLow="); |
| pw.println(mIsBatteryLevelLow); |
| |
| pw.print(" mSettingBatterySaverEnabled="); |
| pw.println(mSettingBatterySaverEnabled); |
| pw.print(" mSettingBatterySaverEnabledSticky="); |
| pw.println(mSettingBatterySaverEnabledSticky); |
| pw.print(" mSettingBatterySaverStickyAutoDisableEnabled="); |
| pw.println(mSettingBatterySaverStickyAutoDisableEnabled); |
| pw.print(" mSettingBatterySaverStickyAutoDisableThreshold="); |
| pw.println(mSettingBatterySaverStickyAutoDisableThreshold); |
| pw.print(" mSettingBatterySaverTriggerThreshold="); |
| pw.println(mSettingBatterySaverTriggerThreshold); |
| pw.print(" mBatterySaverStickyBehaviourDisabled="); |
| pw.println(mBatterySaverStickyBehaviourDisabled); |
| |
| pw.print(" mLastAdaptiveBatterySaverChangedExternallyElapsed="); |
| pw.println(mLastAdaptiveBatterySaverChangedExternallyElapsed); |
| } |
| } |
| |
| public void dumpProto(ProtoOutputStream proto, long tag) { |
| synchronized (mLock) { |
| final long token = proto.start(tag); |
| |
| proto.write(BatterySaverStateMachineProto.ENABLED, |
| mBatterySaverController.isEnabled()); |
| proto.write(BatterySaverStateMachineProto.IS_FULL_ENABLED, |
| mBatterySaverController.isFullEnabled()); |
| proto.write(BatterySaverStateMachineProto.IS_ADAPTIVE_ENABLED, |
| mBatterySaverController.isAdaptiveEnabled()); |
| proto.write(BatterySaverStateMachineProto.SHOULD_ADVERTISE_IS_ENABLED, |
| mBatterySaverController.getBatterySaverPolicy().shouldAdvertiseIsEnabled()); |
| |
| proto.write(BatterySaverStateMachineProto.BOOT_COMPLETED, mBootCompleted); |
| proto.write(BatterySaverStateMachineProto.SETTINGS_LOADED, mSettingsLoaded); |
| proto.write(BatterySaverStateMachineProto.BATTERY_STATUS_SET, mBatteryStatusSet); |
| |
| proto.write(BatterySaverStateMachineProto.BATTERY_SAVER_SNOOZING, |
| mBatterySaverSnoozing); |
| |
| proto.write(BatterySaverStateMachineProto.IS_POWERED, mIsPowered); |
| proto.write(BatterySaverStateMachineProto.BATTERY_LEVEL, mBatteryLevel); |
| proto.write(BatterySaverStateMachineProto.IS_BATTERY_LEVEL_LOW, mIsBatteryLevelLow); |
| |
| proto.write(BatterySaverStateMachineProto.SETTING_BATTERY_SAVER_ENABLED, |
| mSettingBatterySaverEnabled); |
| proto.write(BatterySaverStateMachineProto.SETTING_BATTERY_SAVER_ENABLED_STICKY, |
| mSettingBatterySaverEnabledSticky); |
| proto.write(BatterySaverStateMachineProto.SETTING_BATTERY_SAVER_TRIGGER_THRESHOLD, |
| mSettingBatterySaverTriggerThreshold); |
| proto.write( |
| BatterySaverStateMachineProto.SETTING_BATTERY_SAVER_STICKY_AUTO_DISABLE_ENABLED, |
| mSettingBatterySaverStickyAutoDisableEnabled); |
| proto.write( |
| BatterySaverStateMachineProto |
| .SETTING_BATTERY_SAVER_STICKY_AUTO_DISABLE_THRESHOLD, |
| mSettingBatterySaverStickyAutoDisableThreshold); |
| |
| proto.write( |
| BatterySaverStateMachineProto |
| .LAST_ADAPTIVE_BATTERY_SAVER_CHANGED_EXTERNALLY_ELAPSED, |
| mLastAdaptiveBatterySaverChangedExternallyElapsed); |
| |
| proto.end(token); |
| } |
| } |
| } |