| /* |
| * Copyright (C) 2007 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 com.android.internal.app.IBatteryStats; |
| import com.android.server.am.BatteryStatsService; |
| |
| import android.app.ActivityManagerNative; |
| import android.app.IActivityManager; |
| import android.content.BroadcastReceiver; |
| import android.content.ContentQueryMap; |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.pm.PackageManager; |
| import android.database.Cursor; |
| import android.os.BatteryStats; |
| import android.os.Binder; |
| import android.os.Handler; |
| import android.os.HandlerThread; |
| import android.os.IBinder; |
| import android.os.IPowerManager; |
| import android.os.LocalPowerManager; |
| import android.os.Power; |
| import android.os.PowerManager; |
| import android.os.Process; |
| import android.os.RemoteException; |
| import android.os.SystemClock; |
| import android.provider.Settings.SettingNotFoundException; |
| import android.provider.Settings; |
| import android.util.EventLog; |
| import android.util.Log; |
| import android.view.WindowManagerPolicy; |
| import static android.provider.Settings.System.DIM_SCREEN; |
| import static android.provider.Settings.System.SCREEN_BRIGHTNESS; |
| import static android.provider.Settings.System.SCREEN_OFF_TIMEOUT; |
| import static android.provider.Settings.System.STAY_ON_WHILE_PLUGGED_IN; |
| |
| import java.io.FileDescriptor; |
| import java.io.PrintWriter; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.Observable; |
| import java.util.Observer; |
| |
| class PowerManagerService extends IPowerManager.Stub implements LocalPowerManager, Watchdog.Monitor { |
| |
| private static final String TAG = "PowerManagerService"; |
| static final String PARTIAL_NAME = "PowerManagerService"; |
| |
| private static final boolean LOG_PARTIAL_WL = false; |
| |
| // Indicates whether touch-down cycles should be logged as part of the |
| // LOG_POWER_SCREEN_STATE log events |
| private static final boolean LOG_TOUCH_DOWNS = true; |
| |
| private static final int LOCK_MASK = PowerManager.PARTIAL_WAKE_LOCK |
| | PowerManager.SCREEN_DIM_WAKE_LOCK |
| | PowerManager.SCREEN_BRIGHT_WAKE_LOCK |
| | PowerManager.FULL_WAKE_LOCK; |
| |
| // time since last state: time since last event: |
| // The short keylight delay comes from Gservices; this is the default. |
| private static final int SHORT_KEYLIGHT_DELAY_DEFAULT = 6000; // t+6 sec |
| private static final int MEDIUM_KEYLIGHT_DELAY = 15000; // t+15 sec |
| private static final int LONG_KEYLIGHT_DELAY = 6000; // t+6 sec |
| private static final int LONG_DIM_TIME = 7000; // t+N-5 sec |
| |
| // Cached Gservices settings; see updateGservicesValues() |
| private int mShortKeylightDelay = SHORT_KEYLIGHT_DELAY_DEFAULT; |
| |
| // flags for setPowerState |
| private static final int SCREEN_ON_BIT = 0x00000001; |
| private static final int SCREEN_BRIGHT_BIT = 0x00000002; |
| private static final int BUTTON_BRIGHT_BIT = 0x00000004; |
| private static final int KEYBOARD_BRIGHT_BIT = 0x00000008; |
| private static final int BATTERY_LOW_BIT = 0x00000010; |
| |
| // values for setPowerState |
| |
| // SCREEN_OFF == everything off |
| private static final int SCREEN_OFF = 0x00000000; |
| |
| // SCREEN_DIM == screen on, screen backlight dim |
| private static final int SCREEN_DIM = SCREEN_ON_BIT; |
| |
| // SCREEN_BRIGHT == screen on, screen backlight bright |
| private static final int SCREEN_BRIGHT = SCREEN_ON_BIT | SCREEN_BRIGHT_BIT; |
| |
| // SCREEN_BUTTON_BRIGHT == screen on, screen and button backlights bright |
| private static final int SCREEN_BUTTON_BRIGHT = SCREEN_BRIGHT | BUTTON_BRIGHT_BIT; |
| |
| // SCREEN_BUTTON_BRIGHT == screen on, screen, button and keyboard backlights bright |
| private static final int ALL_BRIGHT = SCREEN_BUTTON_BRIGHT | KEYBOARD_BRIGHT_BIT; |
| |
| // used for noChangeLights in setPowerState() |
| private static final int LIGHTS_MASK = SCREEN_BRIGHT_BIT | BUTTON_BRIGHT_BIT | KEYBOARD_BRIGHT_BIT; |
| |
| static final boolean ANIMATE_SCREEN_LIGHTS = true; |
| static final boolean ANIMATE_BUTTON_LIGHTS = false; |
| static final boolean ANIMATE_KEYBOARD_LIGHTS = false; |
| |
| static final int ANIM_STEPS = 60/4; |
| |
| // These magic numbers are the initial state of the LEDs at boot. Ideally |
| // we should read them from the driver, but our current hardware returns 0 |
| // for the initial value. Oops! |
| static final int INITIAL_SCREEN_BRIGHTNESS = 255; |
| static final int INITIAL_BUTTON_BRIGHTNESS = Power.BRIGHTNESS_OFF; |
| static final int INITIAL_KEYBOARD_BRIGHTNESS = Power.BRIGHTNESS_OFF; |
| |
| static final int LOG_POWER_SLEEP_REQUESTED = 2724; |
| static final int LOG_POWER_SCREEN_BROADCAST_SEND = 2725; |
| static final int LOG_POWER_SCREEN_BROADCAST_DONE = 2726; |
| static final int LOG_POWER_SCREEN_BROADCAST_STOP = 2727; |
| static final int LOG_POWER_SCREEN_STATE = 2728; |
| static final int LOG_POWER_PARTIAL_WAKE_STATE = 2729; |
| |
| private final int MY_UID; |
| |
| private boolean mDoneBooting = false; |
| private int mStayOnConditions = 0; |
| private int[] mBroadcastQueue = new int[] { -1, -1, -1 }; |
| private int[] mBroadcastWhy = new int[3]; |
| private int mPartialCount = 0; |
| private int mPowerState; |
| private boolean mOffBecauseOfUser; |
| private int mUserState; |
| private boolean mKeyboardVisible = false; |
| private boolean mUserActivityAllowed = true; |
| private int mTotalDelaySetting; |
| private int mKeylightDelay; |
| private int mDimDelay; |
| private int mScreenOffDelay; |
| private int mWakeLockState; |
| private long mLastEventTime = 0; |
| private long mScreenOffTime; |
| private volatile WindowManagerPolicy mPolicy; |
| private final LockList mLocks = new LockList(); |
| private Intent mScreenOffIntent; |
| private Intent mScreenOnIntent; |
| private HardwareService mHardware; |
| private Context mContext; |
| private UnsynchronizedWakeLock mBroadcastWakeLock; |
| private UnsynchronizedWakeLock mStayOnWhilePluggedInScreenDimLock; |
| private UnsynchronizedWakeLock mStayOnWhilePluggedInPartialLock; |
| private UnsynchronizedWakeLock mPreventScreenOnPartialLock; |
| private HandlerThread mHandlerThread; |
| private Handler mHandler; |
| private TimeoutTask mTimeoutTask = new TimeoutTask(); |
| private LightAnimator mLightAnimator = new LightAnimator(); |
| private final BrightnessState mScreenBrightness |
| = new BrightnessState(SCREEN_BRIGHT_BIT); |
| private final BrightnessState mKeyboardBrightness |
| = new BrightnessState(KEYBOARD_BRIGHT_BIT); |
| private final BrightnessState mButtonBrightness |
| = new BrightnessState(BUTTON_BRIGHT_BIT); |
| private boolean mStillNeedSleepNotification; |
| private boolean mIsPowered = false; |
| private IActivityManager mActivityService; |
| private IBatteryStats mBatteryStats; |
| private BatteryService mBatteryService; |
| private boolean mDimScreen = true; |
| private long mNextTimeout; |
| private volatile int mPokey = 0; |
| private volatile boolean mPokeAwakeOnSet = false; |
| private volatile boolean mInitComplete = false; |
| private HashMap<IBinder,PokeLock> mPokeLocks = new HashMap<IBinder,PokeLock>(); |
| private long mScreenOnTime; |
| private long mScreenOnStartTime; |
| private boolean mPreventScreenOn; |
| private int mScreenBrightnessOverride = -1; |
| |
| // Used when logging number and duration of touch-down cycles |
| private long mTotalTouchDownTime; |
| private long mLastTouchDown; |
| private int mTouchCycles; |
| |
| // could be either static or controllable at runtime |
| private static final boolean mSpew = false; |
| |
| /* |
| static PrintStream mLog; |
| static { |
| try { |
| mLog = new PrintStream("/data/power.log"); |
| } |
| catch (FileNotFoundException e) { |
| android.util.Log.e(TAG, "Life is hard", e); |
| } |
| } |
| static class Log { |
| static void d(String tag, String s) { |
| mLog.println(s); |
| android.util.Log.d(tag, s); |
| } |
| static void i(String tag, String s) { |
| mLog.println(s); |
| android.util.Log.i(tag, s); |
| } |
| static void w(String tag, String s) { |
| mLog.println(s); |
| android.util.Log.w(tag, s); |
| } |
| static void e(String tag, String s) { |
| mLog.println(s); |
| android.util.Log.e(tag, s); |
| } |
| } |
| */ |
| |
| /** |
| * This class works around a deadlock between the lock in PowerManager.WakeLock |
| * and our synchronizing on mLocks. PowerManager.WakeLock synchronizes on its |
| * mToken object so it can be accessed from any thread, but it calls into here |
| * with its lock held. This class is essentially a reimplementation of |
| * PowerManager.WakeLock, but without that extra synchronized block, because we'll |
| * only call it with our own locks held. |
| */ |
| private class UnsynchronizedWakeLock { |
| int mFlags; |
| String mTag; |
| IBinder mToken; |
| int mCount = 0; |
| boolean mRefCounted; |
| |
| UnsynchronizedWakeLock(int flags, String tag, boolean refCounted) { |
| mFlags = flags; |
| mTag = tag; |
| mToken = new Binder(); |
| mRefCounted = refCounted; |
| } |
| |
| public void acquire() { |
| if (!mRefCounted || mCount++ == 0) { |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| PowerManagerService.this.acquireWakeLockLocked(mFlags, mToken, |
| MY_UID, mTag); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| } |
| |
| public void release() { |
| if (!mRefCounted || --mCount == 0) { |
| PowerManagerService.this.releaseWakeLockLocked(mToken, false); |
| } |
| if (mCount < 0) { |
| throw new RuntimeException("WakeLock under-locked " + mTag); |
| } |
| } |
| |
| public String toString() { |
| return "UnsynchronizedWakeLock(mFlags=0x" + Integer.toHexString(mFlags) |
| + " mCount=" + mCount + ")"; |
| } |
| } |
| |
| private final class BatteryReceiver extends BroadcastReceiver { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| synchronized (mLocks) { |
| boolean wasPowered = mIsPowered; |
| mIsPowered = mBatteryService.isPowered(); |
| |
| if (mIsPowered != wasPowered) { |
| // update mStayOnWhilePluggedIn wake lock |
| updateWakeLockLocked(); |
| |
| // treat plugging and unplugging the devices as a user activity. |
| // users find it disconcerting when they unplug the device |
| // and it shuts off right away. |
| // temporarily set mUserActivityAllowed to true so this will work |
| // even when the keyguard is on. |
| synchronized (mLocks) { |
| boolean savedActivityAllowed = mUserActivityAllowed; |
| mUserActivityAllowed = true; |
| userActivity(SystemClock.uptimeMillis(), false); |
| mUserActivityAllowed = savedActivityAllowed; |
| } |
| } |
| } |
| } |
| } |
| |
| /** |
| * Set the setting that determines whether the device stays on when plugged in. |
| * The argument is a bit string, with each bit specifying a power source that, |
| * when the device is connected to that source, causes the device to stay on. |
| * See {@link android.os.BatteryManager} for the list of power sources that |
| * can be specified. Current values include {@link android.os.BatteryManager#BATTERY_PLUGGED_AC} |
| * and {@link android.os.BatteryManager#BATTERY_PLUGGED_USB} |
| * @param val an {@code int} containing the bits that specify which power sources |
| * should cause the device to stay on. |
| */ |
| public void setStayOnSetting(int val) { |
| mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WRITE_SETTINGS, null); |
| Settings.System.putInt(mContext.getContentResolver(), |
| Settings.System.STAY_ON_WHILE_PLUGGED_IN, val); |
| } |
| |
| private class SettingsObserver implements Observer { |
| private int getInt(String name) { |
| return mSettings.getValues(name).getAsInteger(Settings.System.VALUE); |
| } |
| |
| public void update(Observable o, Object arg) { |
| synchronized (mLocks) { |
| // STAY_ON_WHILE_PLUGGED_IN |
| mStayOnConditions = getInt(STAY_ON_WHILE_PLUGGED_IN); |
| updateWakeLockLocked(); |
| |
| // SCREEN_OFF_TIMEOUT |
| mTotalDelaySetting = getInt(SCREEN_OFF_TIMEOUT); |
| |
| // DIM_SCREEN |
| //mDimScreen = getInt(DIM_SCREEN) != 0; |
| |
| // recalculate everything |
| setScreenOffTimeoutsLocked(); |
| } |
| } |
| } |
| |
| PowerManagerService() |
| { |
| // Hack to get our uid... should have a func for this. |
| long token = Binder.clearCallingIdentity(); |
| MY_UID = Binder.getCallingUid(); |
| Binder.restoreCallingIdentity(token); |
| |
| // XXX remove this when the kernel doesn't timeout wake locks |
| Power.setLastUserActivityTimeout(7*24*3600*1000); // one week |
| |
| // assume nothing is on yet |
| mUserState = mPowerState = 0; |
| |
| // Add ourself to the Watchdog monitors. |
| Watchdog.getInstance().addMonitor(this); |
| mScreenOnStartTime = SystemClock.elapsedRealtime(); |
| } |
| |
| private ContentQueryMap mSettings; |
| |
| void init(Context context, HardwareService hardware, IActivityManager activity, |
| BatteryService battery) { |
| mHardware = hardware; |
| mContext = context; |
| mActivityService = activity; |
| mBatteryStats = BatteryStatsService.getService(); |
| mBatteryService = battery; |
| |
| mHandlerThread = new HandlerThread("PowerManagerService") { |
| @Override |
| protected void onLooperPrepared() { |
| super.onLooperPrepared(); |
| initInThread(); |
| } |
| }; |
| mHandlerThread.start(); |
| |
| synchronized (mHandlerThread) { |
| while (!mInitComplete) { |
| try { |
| mHandlerThread.wait(); |
| } catch (InterruptedException e) { |
| // Ignore |
| } |
| } |
| } |
| } |
| |
| void initInThread() { |
| mHandler = new Handler(); |
| |
| mBroadcastWakeLock = new UnsynchronizedWakeLock( |
| PowerManager.PARTIAL_WAKE_LOCK, "sleep_broadcast", true); |
| mStayOnWhilePluggedInScreenDimLock = new UnsynchronizedWakeLock( |
| PowerManager.SCREEN_DIM_WAKE_LOCK, "StayOnWhilePluggedIn Screen Dim", false); |
| mStayOnWhilePluggedInPartialLock = new UnsynchronizedWakeLock( |
| PowerManager.PARTIAL_WAKE_LOCK, "StayOnWhilePluggedIn Partial", false); |
| mPreventScreenOnPartialLock = new UnsynchronizedWakeLock( |
| PowerManager.PARTIAL_WAKE_LOCK, "PreventScreenOn Partial", false); |
| |
| mScreenOnIntent = new Intent(Intent.ACTION_SCREEN_ON); |
| mScreenOnIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); |
| mScreenOffIntent = new Intent(Intent.ACTION_SCREEN_OFF); |
| mScreenOffIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); |
| |
| ContentResolver resolver = mContext.getContentResolver(); |
| Cursor settingsCursor = resolver.query(Settings.System.CONTENT_URI, null, |
| "(" + Settings.System.NAME + "=?) or (" |
| + Settings.System.NAME + "=?) or (" |
| + Settings.System.NAME + "=?)", |
| new String[]{STAY_ON_WHILE_PLUGGED_IN, SCREEN_OFF_TIMEOUT, DIM_SCREEN}, |
| null); |
| mSettings = new ContentQueryMap(settingsCursor, Settings.System.NAME, true, mHandler); |
| SettingsObserver settingsObserver = new SettingsObserver(); |
| mSettings.addObserver(settingsObserver); |
| |
| // pretend that the settings changed so we will get their initial state |
| settingsObserver.update(mSettings, null); |
| |
| // register for the battery changed notifications |
| IntentFilter filter = new IntentFilter(); |
| filter.addAction(Intent.ACTION_BATTERY_CHANGED); |
| mContext.registerReceiver(new BatteryReceiver(), filter); |
| |
| // Listen for Gservices changes |
| IntentFilter gservicesChangedFilter = |
| new IntentFilter(Settings.Gservices.CHANGED_ACTION); |
| mContext.registerReceiver(new GservicesChangedReceiver(), gservicesChangedFilter); |
| // And explicitly do the initial update of our cached settings |
| updateGservicesValues(); |
| |
| // turn everything on |
| setPowerState(ALL_BRIGHT); |
| |
| synchronized (mHandlerThread) { |
| mInitComplete = true; |
| mHandlerThread.notifyAll(); |
| } |
| } |
| |
| private class WakeLock implements IBinder.DeathRecipient |
| { |
| WakeLock(int f, IBinder b, String t, int u) { |
| super(); |
| flags = f; |
| binder = b; |
| tag = t; |
| uid = u == MY_UID ? Process.SYSTEM_UID : u; |
| if (u != MY_UID || ( |
| !"KEEP_SCREEN_ON_FLAG".equals(tag) |
| && !"KeyInputQueue".equals(tag))) { |
| monitorType = (f & LOCK_MASK) == PowerManager.PARTIAL_WAKE_LOCK |
| ? BatteryStats.WAKE_TYPE_PARTIAL |
| : BatteryStats.WAKE_TYPE_FULL; |
| } else { |
| monitorType = -1; |
| } |
| try { |
| b.linkToDeath(this, 0); |
| } catch (RemoteException e) { |
| binderDied(); |
| } |
| } |
| public void binderDied() { |
| synchronized (mLocks) { |
| releaseWakeLockLocked(this.binder, true); |
| } |
| } |
| final int flags; |
| final IBinder binder; |
| final String tag; |
| final int uid; |
| final int monitorType; |
| boolean activated = true; |
| int minState; |
| } |
| |
| private void updateWakeLockLocked() { |
| if (mStayOnConditions != 0 && mBatteryService.isPowered(mStayOnConditions)) { |
| // keep the device on if we're plugged in and mStayOnWhilePluggedIn is set. |
| mStayOnWhilePluggedInScreenDimLock.acquire(); |
| mStayOnWhilePluggedInPartialLock.acquire(); |
| } else { |
| mStayOnWhilePluggedInScreenDimLock.release(); |
| mStayOnWhilePluggedInPartialLock.release(); |
| } |
| } |
| |
| private boolean isScreenLock(int flags) |
| { |
| int n = flags & LOCK_MASK; |
| return n == PowerManager.FULL_WAKE_LOCK |
| || n == PowerManager.SCREEN_BRIGHT_WAKE_LOCK |
| || n == PowerManager.SCREEN_DIM_WAKE_LOCK; |
| } |
| |
| public void acquireWakeLock(int flags, IBinder lock, String tag) { |
| int uid = Binder.getCallingUid(); |
| if (uid != Process.myUid()) { |
| mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WAKE_LOCK, null); |
| } |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| synchronized (mLocks) { |
| acquireWakeLockLocked(flags, lock, uid, tag); |
| } |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| public void acquireWakeLockLocked(int flags, IBinder lock, int uid, String tag) { |
| int acquireUid = -1; |
| String acquireName = null; |
| int acquireType = -1; |
| |
| if (mSpew) { |
| Log.d(TAG, "acquireWakeLock flags=0x" + Integer.toHexString(flags) + " tag=" + tag); |
| } |
| |
| int index = mLocks.getIndex(lock); |
| WakeLock wl; |
| boolean newlock; |
| if (index < 0) { |
| wl = new WakeLock(flags, lock, tag, uid); |
| switch (wl.flags & LOCK_MASK) |
| { |
| case PowerManager.FULL_WAKE_LOCK: |
| wl.minState = (mKeyboardVisible ? ALL_BRIGHT : SCREEN_BUTTON_BRIGHT); |
| break; |
| case PowerManager.SCREEN_BRIGHT_WAKE_LOCK: |
| wl.minState = SCREEN_BRIGHT; |
| break; |
| case PowerManager.SCREEN_DIM_WAKE_LOCK: |
| wl.minState = SCREEN_DIM; |
| break; |
| case PowerManager.PARTIAL_WAKE_LOCK: |
| break; |
| default: |
| // just log and bail. we're in the server, so don't |
| // throw an exception. |
| Log.e(TAG, "bad wakelock type for lock '" + tag + "' " |
| + " flags=" + flags); |
| return; |
| } |
| mLocks.addLock(wl); |
| newlock = true; |
| } else { |
| wl = mLocks.get(index); |
| newlock = false; |
| } |
| if (isScreenLock(flags)) { |
| // if this causes a wakeup, we reactivate all of the locks and |
| // set it to whatever they want. otherwise, we modulate that |
| // by the current state so we never turn it more on than |
| // it already is. |
| if ((wl.flags & PowerManager.ACQUIRE_CAUSES_WAKEUP) != 0) { |
| int oldWakeLockState = mWakeLockState; |
| mWakeLockState = mLocks.reactivateScreenLocksLocked(); |
| if (mSpew) { |
| Log.d(TAG, "wakeup here mUserState=0x" + Integer.toHexString(mUserState) |
| + " mWakeLockState=0x" |
| + Integer.toHexString(mWakeLockState) |
| + " previous wakeLockState=0x" + Integer.toHexString(oldWakeLockState)); |
| } |
| } else { |
| if (mSpew) { |
| Log.d(TAG, "here mUserState=0x" + Integer.toHexString(mUserState) |
| + " mLocks.gatherState()=0x" |
| + Integer.toHexString(mLocks.gatherState()) |
| + " mWakeLockState=0x" + Integer.toHexString(mWakeLockState)); |
| } |
| mWakeLockState = (mUserState | mWakeLockState) & mLocks.gatherState(); |
| } |
| setPowerState(mWakeLockState | mUserState); |
| } |
| else if ((flags & LOCK_MASK) == PowerManager.PARTIAL_WAKE_LOCK) { |
| if (newlock) { |
| mPartialCount++; |
| if (mPartialCount == 1) { |
| if (LOG_PARTIAL_WL) EventLog.writeEvent(LOG_POWER_PARTIAL_WAKE_STATE, 1, tag); |
| } |
| } |
| Power.acquireWakeLock(Power.PARTIAL_WAKE_LOCK,PARTIAL_NAME); |
| } |
| if (newlock) { |
| acquireUid = wl.uid; |
| acquireName = wl.tag; |
| acquireType = wl.monitorType; |
| } |
| |
| if (acquireType >= 0) { |
| try { |
| mBatteryStats.noteStartWakelock(acquireUid, acquireName, acquireType); |
| } catch (RemoteException e) { |
| // Ignore |
| } |
| } |
| } |
| |
| public void releaseWakeLock(IBinder lock) { |
| int uid = Binder.getCallingUid(); |
| if (uid != Process.myUid()) { |
| mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WAKE_LOCK, null); |
| } |
| |
| synchronized (mLocks) { |
| releaseWakeLockLocked(lock, false); |
| } |
| } |
| |
| private void releaseWakeLockLocked(IBinder lock, boolean death) { |
| int releaseUid; |
| String releaseName; |
| int releaseType; |
| |
| WakeLock wl = mLocks.removeLock(lock); |
| if (wl == null) { |
| return; |
| } |
| |
| if (mSpew) { |
| Log.d(TAG, "releaseWakeLock flags=0x" |
| + Integer.toHexString(wl.flags) + " tag=" + wl.tag); |
| } |
| |
| if (isScreenLock(wl.flags)) { |
| mWakeLockState = mLocks.gatherState(); |
| // goes in the middle to reduce flicker |
| if ((wl.flags & PowerManager.ON_AFTER_RELEASE) != 0) { |
| userActivity(SystemClock.uptimeMillis(), false); |
| } |
| setPowerState(mWakeLockState | mUserState); |
| } |
| else if ((wl.flags & LOCK_MASK) == PowerManager.PARTIAL_WAKE_LOCK) { |
| mPartialCount--; |
| if (mPartialCount == 0) { |
| if (LOG_PARTIAL_WL) EventLog.writeEvent(LOG_POWER_PARTIAL_WAKE_STATE, 0, wl.tag); |
| Power.releaseWakeLock(PARTIAL_NAME); |
| } |
| } |
| // Unlink the lock from the binder. |
| wl.binder.unlinkToDeath(wl, 0); |
| releaseUid = wl.uid; |
| releaseName = wl.tag; |
| releaseType = wl.monitorType; |
| |
| if (releaseType >= 0) { |
| long origId = Binder.clearCallingIdentity(); |
| try { |
| mBatteryStats.noteStopWakelock(releaseUid, releaseName, releaseType); |
| } catch (RemoteException e) { |
| // Ignore |
| } finally { |
| Binder.restoreCallingIdentity(origId); |
| } |
| } |
| } |
| |
| private class PokeLock implements IBinder.DeathRecipient |
| { |
| PokeLock(int p, IBinder b, String t) { |
| super(); |
| this.pokey = p; |
| this.binder = b; |
| this.tag = t; |
| try { |
| b.linkToDeath(this, 0); |
| } catch (RemoteException e) { |
| binderDied(); |
| } |
| } |
| public void binderDied() { |
| setPokeLock(0, this.binder, this.tag); |
| } |
| int pokey; |
| IBinder binder; |
| String tag; |
| boolean awakeOnSet; |
| } |
| |
| public void setPokeLock(int pokey, IBinder token, String tag) { |
| mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null); |
| if (token == null) { |
| Log.e(TAG, "setPokeLock got null token for tag='" + tag + "'"); |
| return; |
| } |
| |
| if ((pokey & POKE_LOCK_TIMEOUT_MASK) == POKE_LOCK_TIMEOUT_MASK) { |
| throw new IllegalArgumentException("setPokeLock can't have both POKE_LOCK_SHORT_TIMEOUT" |
| + " and POKE_LOCK_MEDIUM_TIMEOUT"); |
| } |
| |
| synchronized (mLocks) { |
| if (pokey != 0) { |
| PokeLock p = mPokeLocks.get(token); |
| int oldPokey = 0; |
| if (p != null) { |
| oldPokey = p.pokey; |
| p.pokey = pokey; |
| } else { |
| p = new PokeLock(pokey, token, tag); |
| mPokeLocks.put(token, p); |
| } |
| int oldTimeout = oldPokey & POKE_LOCK_TIMEOUT_MASK; |
| int newTimeout = pokey & POKE_LOCK_TIMEOUT_MASK; |
| if (((mPowerState & SCREEN_ON_BIT) == 0) && (oldTimeout != newTimeout)) { |
| p.awakeOnSet = true; |
| } |
| } else { |
| PokeLock rLock = mPokeLocks.remove(token); |
| if (rLock != null) { |
| token.unlinkToDeath(rLock, 0); |
| } |
| } |
| |
| int oldPokey = mPokey; |
| int cumulative = 0; |
| boolean oldAwakeOnSet = mPokeAwakeOnSet; |
| boolean awakeOnSet = false; |
| for (PokeLock p: mPokeLocks.values()) { |
| cumulative |= p.pokey; |
| if (p.awakeOnSet) { |
| awakeOnSet = true; |
| } |
| } |
| mPokey = cumulative; |
| mPokeAwakeOnSet = awakeOnSet; |
| |
| int oldCumulativeTimeout = oldPokey & POKE_LOCK_TIMEOUT_MASK; |
| int newCumulativeTimeout = pokey & POKE_LOCK_TIMEOUT_MASK; |
| |
| if (oldCumulativeTimeout != newCumulativeTimeout) { |
| setScreenOffTimeoutsLocked(); |
| // reset the countdown timer, but use the existing nextState so it doesn't |
| // change anything |
| setTimeoutLocked(SystemClock.uptimeMillis(), mTimeoutTask.nextState); |
| } |
| } |
| } |
| |
| private static String lockType(int type) |
| { |
| switch (type) |
| { |
| case PowerManager.FULL_WAKE_LOCK: |
| return "FULL_WAKE_LOCK "; |
| case PowerManager.SCREEN_BRIGHT_WAKE_LOCK: |
| return "SCREEN_BRIGHT_WAKE_LOCK"; |
| case PowerManager.SCREEN_DIM_WAKE_LOCK: |
| return "SCREEN_DIM_WAKE_LOCK "; |
| case PowerManager.PARTIAL_WAKE_LOCK: |
| return "PARTIAL_WAKE_LOCK "; |
| default: |
| return "??? "; |
| } |
| } |
| |
| private static String dumpPowerState(int state) { |
| return (((state & KEYBOARD_BRIGHT_BIT) != 0) |
| ? "KEYBOARD_BRIGHT_BIT " : "") |
| + (((state & SCREEN_BRIGHT_BIT) != 0) |
| ? "SCREEN_BRIGHT_BIT " : "") |
| + (((state & SCREEN_ON_BIT) != 0) |
| ? "SCREEN_ON_BIT " : "") |
| + (((state & BATTERY_LOW_BIT) != 0) |
| ? "BATTERY_LOW_BIT " : ""); |
| } |
| |
| @Override |
| public 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 PowerManager from from pid=" |
| + Binder.getCallingPid() |
| + ", uid=" + Binder.getCallingUid()); |
| return; |
| } |
| |
| long now = SystemClock.uptimeMillis(); |
| |
| pw.println("Power Manager State:"); |
| pw.println(" mIsPowered=" + mIsPowered |
| + " mPowerState=" + mPowerState |
| + " mScreenOffTime=" + (SystemClock.elapsedRealtime()-mScreenOffTime) |
| + " ms"); |
| pw.println(" mPartialCount=" + mPartialCount); |
| pw.println(" mWakeLockState=" + dumpPowerState(mWakeLockState)); |
| pw.println(" mUserState=" + dumpPowerState(mUserState)); |
| pw.println(" mPowerState=" + dumpPowerState(mPowerState)); |
| pw.println(" mLocks.gather=" + dumpPowerState(mLocks.gatherState())); |
| pw.println(" mNextTimeout=" + mNextTimeout + " now=" + now |
| + " " + ((mNextTimeout-now)/1000) + "s from now"); |
| pw.println(" mDimScreen=" + mDimScreen |
| + " mStayOnConditions=" + mStayOnConditions); |
| pw.println(" mOffBecauseOfUser=" + mOffBecauseOfUser |
| + " mUserState=" + mUserState); |
| pw.println(" mBroadcastQueue={" + mBroadcastQueue[0] + ',' + mBroadcastQueue[1] |
| + ',' + mBroadcastQueue[2] + "}"); |
| pw.println(" mBroadcastWhy={" + mBroadcastWhy[0] + ',' + mBroadcastWhy[1] |
| + ',' + mBroadcastWhy[2] + "}"); |
| pw.println(" mPokey=" + mPokey + " mPokeAwakeonSet=" + mPokeAwakeOnSet); |
| pw.println(" mKeyboardVisible=" + mKeyboardVisible |
| + " mUserActivityAllowed=" + mUserActivityAllowed); |
| pw.println(" mKeylightDelay=" + mKeylightDelay + " mDimDelay=" + mDimDelay |
| + " mScreenOffDelay=" + mScreenOffDelay); |
| pw.println(" mPreventScreenOn=" + mPreventScreenOn |
| + " mScreenBrightnessOverride=" + mScreenBrightnessOverride); |
| pw.println(" mTotalDelaySetting=" + mTotalDelaySetting); |
| pw.println(" mBroadcastWakeLock=" + mBroadcastWakeLock); |
| pw.println(" mStayOnWhilePluggedInScreenDimLock=" + mStayOnWhilePluggedInScreenDimLock); |
| pw.println(" mStayOnWhilePluggedInPartialLock=" + mStayOnWhilePluggedInPartialLock); |
| pw.println(" mPreventScreenOnPartialLock=" + mPreventScreenOnPartialLock); |
| mScreenBrightness.dump(pw, " mScreenBrightness: "); |
| mKeyboardBrightness.dump(pw, " mKeyboardBrightness: "); |
| mButtonBrightness.dump(pw, " mButtonBrightness: "); |
| |
| int N = mLocks.size(); |
| pw.println(); |
| pw.println("mLocks.size=" + N + ":"); |
| for (int i=0; i<N; i++) { |
| WakeLock wl = mLocks.get(i); |
| String type = lockType(wl.flags & LOCK_MASK); |
| String acquireCausesWakeup = ""; |
| if ((wl.flags & PowerManager.ACQUIRE_CAUSES_WAKEUP) != 0) { |
| acquireCausesWakeup = "ACQUIRE_CAUSES_WAKEUP "; |
| } |
| String activated = ""; |
| if (wl.activated) { |
| activated = " activated"; |
| } |
| pw.println(" " + type + " '" + wl.tag + "'" + acquireCausesWakeup |
| + activated + " (minState=" + wl.minState + ")"); |
| } |
| |
| pw.println(); |
| pw.println("mPokeLocks.size=" + mPokeLocks.size() + ":"); |
| for (PokeLock p: mPokeLocks.values()) { |
| pw.println(" poke lock '" + p.tag + "':" |
| + ((p.pokey & POKE_LOCK_IGNORE_CHEEK_EVENTS) != 0 |
| ? " POKE_LOCK_IGNORE_CHEEK_EVENTS" : "") |
| + ((p.pokey & POKE_LOCK_IGNORE_TOUCH_AND_CHEEK_EVENTS) != 0 |
| ? " POKE_LOCK_IGNORE_TOUCH_AND_CHEEK_EVENTS" : "") |
| + ((p.pokey & POKE_LOCK_SHORT_TIMEOUT) != 0 |
| ? " POKE_LOCK_SHORT_TIMEOUT" : "") |
| + ((p.pokey & POKE_LOCK_MEDIUM_TIMEOUT) != 0 |
| ? " POKE_LOCK_MEDIUM_TIMEOUT" : "")); |
| } |
| |
| pw.println(); |
| } |
| |
| private void setTimeoutLocked(long now, int nextState) |
| { |
| if (mDoneBooting) { |
| mHandler.removeCallbacks(mTimeoutTask); |
| mTimeoutTask.nextState = nextState; |
| long when = now; |
| switch (nextState) |
| { |
| case SCREEN_BRIGHT: |
| when += mKeylightDelay; |
| break; |
| case SCREEN_DIM: |
| if (mDimDelay >= 0) { |
| when += mDimDelay; |
| break; |
| } else { |
| Log.w(TAG, "mDimDelay=" + mDimDelay + " while trying to dim"); |
| } |
| case SCREEN_OFF: |
| synchronized (mLocks) { |
| when += mScreenOffDelay; |
| } |
| break; |
| } |
| if (mSpew) { |
| Log.d(TAG, "setTimeoutLocked now=" + now + " nextState=" + nextState |
| + " when=" + when); |
| } |
| mHandler.postAtTime(mTimeoutTask, when); |
| mNextTimeout = when; // for debugging |
| } |
| } |
| |
| private void cancelTimerLocked() |
| { |
| mHandler.removeCallbacks(mTimeoutTask); |
| mTimeoutTask.nextState = -1; |
| } |
| |
| private class TimeoutTask implements Runnable |
| { |
| int nextState; // access should be synchronized on mLocks |
| public void run() |
| { |
| synchronized (mLocks) { |
| if (mSpew) { |
| Log.d(TAG, "user activity timeout timed out nextState=" + this.nextState); |
| } |
| |
| if (nextState == -1) { |
| return; |
| } |
| |
| mUserState = this.nextState; |
| setPowerState(this.nextState | mWakeLockState); |
| |
| long now = SystemClock.uptimeMillis(); |
| |
| switch (this.nextState) |
| { |
| case SCREEN_BRIGHT: |
| if (mDimDelay >= 0) { |
| setTimeoutLocked(now, SCREEN_DIM); |
| break; |
| } |
| case SCREEN_DIM: |
| setTimeoutLocked(now, SCREEN_OFF); |
| break; |
| } |
| } |
| } |
| } |
| |
| private void sendNotificationLocked(boolean on, int why) |
| { |
| if (!on) { |
| mStillNeedSleepNotification = false; |
| } |
| |
| // Add to the queue. |
| int index = 0; |
| while (mBroadcastQueue[index] != -1) { |
| index++; |
| } |
| mBroadcastQueue[index] = on ? 1 : 0; |
| mBroadcastWhy[index] = why; |
| |
| // If we added it position 2, then there is a pair that can be stripped. |
| // If we added it position 1 and we're turning the screen off, we can strip |
| // the pair and do nothing, because the screen is already off, and therefore |
| // keyguard has already been enabled. |
| // However, if we added it at position 1 and we're turning it on, then position |
| // 0 was to turn it off, and we can't strip that, because keyguard needs to come |
| // on, so have to run the queue then. |
| if (index == 2) { |
| // Also, while we're collapsing them, if it's going to be an "off," and one |
| // is off because of user, then use that, regardless of whether it's the first |
| // or second one. |
| if (!on && why == WindowManagerPolicy.OFF_BECAUSE_OF_USER) { |
| mBroadcastWhy[0] = WindowManagerPolicy.OFF_BECAUSE_OF_USER; |
| } |
| mBroadcastQueue[0] = on ? 1 : 0; |
| mBroadcastQueue[1] = -1; |
| mBroadcastQueue[2] = -1; |
| index = 0; |
| } |
| if (index == 1 && !on) { |
| mBroadcastQueue[0] = -1; |
| mBroadcastQueue[1] = -1; |
| index = -1; |
| // The wake lock was being held, but we're not actually going to do any |
| // broadcasts, so release the wake lock. |
| EventLog.writeEvent(LOG_POWER_SCREEN_BROADCAST_STOP, 1, mBroadcastWakeLock.mCount); |
| mBroadcastWakeLock.release(); |
| } |
| |
| // Now send the message. |
| if (index >= 0) { |
| // Acquire the broadcast wake lock before changing the power |
| // state. It will be release after the broadcast is sent. |
| // We always increment the ref count for each notification in the queue |
| // and always decrement when that notification is handled. |
| mBroadcastWakeLock.acquire(); |
| EventLog.writeEvent(LOG_POWER_SCREEN_BROADCAST_SEND, mBroadcastWakeLock.mCount); |
| mHandler.post(mNotificationTask); |
| } |
| } |
| |
| private Runnable mNotificationTask = new Runnable() |
| { |
| public void run() |
| { |
| while (true) { |
| int value; |
| int why; |
| WindowManagerPolicy policy; |
| synchronized (mLocks) { |
| value = mBroadcastQueue[0]; |
| why = mBroadcastWhy[0]; |
| for (int i=0; i<2; i++) { |
| mBroadcastQueue[i] = mBroadcastQueue[i+1]; |
| mBroadcastWhy[i] = mBroadcastWhy[i+1]; |
| } |
| policy = getPolicyLocked(); |
| } |
| if (value == 1) { |
| mScreenOnStart = SystemClock.uptimeMillis(); |
| |
| policy.screenTurnedOn(); |
| try { |
| ActivityManagerNative.getDefault().wakingUp(); |
| } catch (RemoteException e) { |
| // ignore it |
| } |
| |
| if (mSpew) { |
| Log.d(TAG, "mBroadcastWakeLock=" + mBroadcastWakeLock); |
| } |
| if (mContext != null && ActivityManagerNative.isSystemReady()) { |
| mContext.sendOrderedBroadcast(mScreenOnIntent, null, |
| mScreenOnBroadcastDone, mHandler, 0, null, null); |
| } else { |
| synchronized (mLocks) { |
| EventLog.writeEvent(LOG_POWER_SCREEN_BROADCAST_STOP, 2, |
| mBroadcastWakeLock.mCount); |
| mBroadcastWakeLock.release(); |
| } |
| } |
| } |
| else if (value == 0) { |
| mScreenOffStart = SystemClock.uptimeMillis(); |
| |
| policy.screenTurnedOff(why); |
| try { |
| ActivityManagerNative.getDefault().goingToSleep(); |
| } catch (RemoteException e) { |
| // ignore it. |
| } |
| |
| if (mContext != null && ActivityManagerNative.isSystemReady()) { |
| mContext.sendOrderedBroadcast(mScreenOffIntent, null, |
| mScreenOffBroadcastDone, mHandler, 0, null, null); |
| } else { |
| synchronized (mLocks) { |
| EventLog.writeEvent(LOG_POWER_SCREEN_BROADCAST_STOP, 3, |
| mBroadcastWakeLock.mCount); |
| mBroadcastWakeLock.release(); |
| } |
| } |
| } |
| else { |
| // If we're in this case, then this handler is running for a previous |
| // paired transaction. mBroadcastWakeLock will already have been released. |
| break; |
| } |
| } |
| } |
| }; |
| |
| long mScreenOnStart; |
| private BroadcastReceiver mScreenOnBroadcastDone = new BroadcastReceiver() { |
| public void onReceive(Context context, Intent intent) { |
| synchronized (mLocks) { |
| EventLog.writeEvent(LOG_POWER_SCREEN_BROADCAST_DONE, 1, |
| SystemClock.uptimeMillis() - mScreenOnStart, mBroadcastWakeLock.mCount); |
| mBroadcastWakeLock.release(); |
| } |
| } |
| }; |
| |
| long mScreenOffStart; |
| private BroadcastReceiver mScreenOffBroadcastDone = new BroadcastReceiver() { |
| public void onReceive(Context context, Intent intent) { |
| synchronized (mLocks) { |
| EventLog.writeEvent(LOG_POWER_SCREEN_BROADCAST_DONE, 0, |
| SystemClock.uptimeMillis() - mScreenOffStart, mBroadcastWakeLock.mCount); |
| mBroadcastWakeLock.release(); |
| } |
| } |
| }; |
| |
| void logPointerUpEvent() { |
| if (LOG_TOUCH_DOWNS) { |
| mTotalTouchDownTime += SystemClock.elapsedRealtime() - mLastTouchDown; |
| mLastTouchDown = 0; |
| } |
| } |
| |
| void logPointerDownEvent() { |
| if (LOG_TOUCH_DOWNS) { |
| // If we are not already timing a down/up sequence |
| if (mLastTouchDown == 0) { |
| mLastTouchDown = SystemClock.elapsedRealtime(); |
| mTouchCycles++; |
| } |
| } |
| } |
| |
| /** |
| * Prevents the screen from turning on even if it *should* turn on due |
| * to a subsequent full wake lock being acquired. |
| * <p> |
| * This is a temporary hack that allows an activity to "cover up" any |
| * display glitches that happen during the activity's startup |
| * sequence. (Specifically, this API was added to work around a |
| * cosmetic bug in the "incoming call" sequence, where the lock screen |
| * would flicker briefly before the incoming call UI became visible.) |
| * TODO: There ought to be a more elegant way of doing this, |
| * probably by having the PowerManager and ActivityManager |
| * work together to let apps specify that the screen on/off |
| * state should be synchronized with the Activity lifecycle. |
| * <p> |
| * Note that calling preventScreenOn(true) will NOT turn the screen |
| * off if it's currently on. (This API only affects *future* |
| * acquisitions of full wake locks.) |
| * But calling preventScreenOn(false) WILL turn the screen on if |
| * it's currently off because of a prior preventScreenOn(true) call. |
| * <p> |
| * Any call to preventScreenOn(true) MUST be followed promptly by a call |
| * to preventScreenOn(false). In fact, if the preventScreenOn(false) |
| * call doesn't occur within 5 seconds, we'll turn the screen back on |
| * ourselves (and log a warning about it); this prevents a buggy app |
| * from disabling the screen forever.) |
| * <p> |
| * TODO: this feature should really be controlled by a new type of poke |
| * lock (rather than an IPowerManager call). |
| */ |
| public void preventScreenOn(boolean prevent) { |
| mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null); |
| |
| synchronized (mLocks) { |
| if (prevent) { |
| // First of all, grab a partial wake lock to |
| // make sure the CPU stays on during the entire |
| // preventScreenOn(true) -> preventScreenOn(false) sequence. |
| mPreventScreenOnPartialLock.acquire(); |
| |
| // Post a forceReenableScreen() call (for 5 seconds in the |
| // future) to make sure the matching preventScreenOn(false) call |
| // has happened by then. |
| mHandler.removeCallbacks(mForceReenableScreenTask); |
| mHandler.postDelayed(mForceReenableScreenTask, 5000); |
| |
| // Finally, set the flag that prevents the screen from turning on. |
| // (Below, in setPowerState(), we'll check mPreventScreenOn and |
| // we *won't* call Power.setScreenState(true) if it's set.) |
| mPreventScreenOn = true; |
| } else { |
| // (Re)enable the screen. |
| mPreventScreenOn = false; |
| |
| // We're "undoing" a the prior preventScreenOn(true) call, so we |
| // no longer need the 5-second safeguard. |
| mHandler.removeCallbacks(mForceReenableScreenTask); |
| |
| // Forcibly turn on the screen if it's supposed to be on. (This |
| // handles the case where the screen is currently off because of |
| // a prior preventScreenOn(true) call.) |
| if ((mPowerState & SCREEN_ON_BIT) != 0) { |
| if (mSpew) { |
| Log.d(TAG, |
| "preventScreenOn: turning on after a prior preventScreenOn(true)!"); |
| } |
| int err = Power.setScreenState(true); |
| if (err != 0) { |
| Log.w(TAG, "preventScreenOn: error from Power.setScreenState(): " + err); |
| } |
| } |
| |
| // Release the partial wake lock that we held during the |
| // preventScreenOn(true) -> preventScreenOn(false) sequence. |
| mPreventScreenOnPartialLock.release(); |
| } |
| } |
| } |
| |
| public void setScreenBrightnessOverride(int brightness) { |
| mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null); |
| |
| synchronized (mLocks) { |
| if (mScreenBrightnessOverride != brightness) { |
| mScreenBrightnessOverride = brightness; |
| updateLightsLocked(mPowerState, SCREEN_ON_BIT); |
| } |
| } |
| } |
| |
| /** |
| * Sanity-check that gets called 5 seconds after any call to |
| * preventScreenOn(true). This ensures that the original call |
| * is followed promptly by a call to preventScreenOn(false). |
| */ |
| private void forceReenableScreen() { |
| // We shouldn't get here at all if mPreventScreenOn is false, since |
| // we should have already removed any existing |
| // mForceReenableScreenTask messages... |
| if (!mPreventScreenOn) { |
| Log.w(TAG, "forceReenableScreen: mPreventScreenOn is false, nothing to do"); |
| return; |
| } |
| |
| // Uh oh. It's been 5 seconds since a call to |
| // preventScreenOn(true) and we haven't re-enabled the screen yet. |
| // This means the app that called preventScreenOn(true) is either |
| // slow (i.e. it took more than 5 seconds to call preventScreenOn(false)), |
| // or buggy (i.e. it forgot to call preventScreenOn(false), or |
| // crashed before doing so.) |
| |
| // Log a warning, and forcibly turn the screen back on. |
| Log.w(TAG, "App called preventScreenOn(true) but didn't promptly reenable the screen! " |
| + "Forcing the screen back on..."); |
| preventScreenOn(false); |
| } |
| |
| private Runnable mForceReenableScreenTask = new Runnable() { |
| public void run() { |
| forceReenableScreen(); |
| } |
| }; |
| |
| private void setPowerState(int state) |
| { |
| setPowerState(state, false, false); |
| } |
| |
| private void setPowerState(int newState, boolean noChangeLights, boolean becauseOfUser) |
| { |
| synchronized (mLocks) { |
| int err; |
| |
| if (mSpew) { |
| Log.d(TAG, "setPowerState: mPowerState=0x" + Integer.toHexString(mPowerState) |
| + " newState=0x" + Integer.toHexString(newState) |
| + " noChangeLights=" + noChangeLights); |
| } |
| |
| if (noChangeLights) { |
| newState = (newState & ~LIGHTS_MASK) | (mPowerState & LIGHTS_MASK); |
| } |
| |
| if (batteryIsLow()) { |
| newState |= BATTERY_LOW_BIT; |
| } else { |
| newState &= ~BATTERY_LOW_BIT; |
| } |
| if (newState == mPowerState) { |
| return; |
| } |
| |
| if (!mDoneBooting) { |
| newState |= ALL_BRIGHT; |
| } |
| |
| boolean oldScreenOn = (mPowerState & SCREEN_ON_BIT) != 0; |
| boolean newScreenOn = (newState & SCREEN_ON_BIT) != 0; |
| |
| if (mSpew) { |
| Log.d(TAG, "setPowerState: mPowerState=" + mPowerState |
| + " newState=" + newState + " noChangeLights=" + noChangeLights); |
| Log.d(TAG, " oldKeyboardBright=" + ((mPowerState & KEYBOARD_BRIGHT_BIT) != 0) |
| + " newKeyboardBright=" + ((newState & KEYBOARD_BRIGHT_BIT) != 0)); |
| Log.d(TAG, " oldScreenBright=" + ((mPowerState & SCREEN_BRIGHT_BIT) != 0) |
| + " newScreenBright=" + ((newState & SCREEN_BRIGHT_BIT) != 0)); |
| Log.d(TAG, " oldButtonBright=" + ((mPowerState & BUTTON_BRIGHT_BIT) != 0) |
| + " newButtonBright=" + ((newState & BUTTON_BRIGHT_BIT) != 0)); |
| Log.d(TAG, " oldScreenOn=" + oldScreenOn |
| + " newScreenOn=" + newScreenOn); |
| Log.d(TAG, " oldBatteryLow=" + ((mPowerState & BATTERY_LOW_BIT) != 0) |
| + " newBatteryLow=" + ((newState & BATTERY_LOW_BIT) != 0)); |
| } |
| |
| if (mPowerState != newState) { |
| updateLightsLocked(newState, 0); |
| mPowerState = (mPowerState & ~LIGHTS_MASK) | (newState & LIGHTS_MASK); |
| } |
| |
| if (oldScreenOn != newScreenOn) { |
| if (newScreenOn) { |
| // When the user presses the power button, we need to always send out the |
| // notification that it's going to sleep so the keyguard goes on. But |
| // we can't do that until the screen fades out, so we don't show the keyguard |
| // too early. |
| if (mStillNeedSleepNotification) { |
| sendNotificationLocked(false, WindowManagerPolicy.OFF_BECAUSE_OF_USER); |
| } |
| |
| // Turn on the screen UNLESS there was a prior |
| // preventScreenOn(true) request. (Note that the lifetime |
| // of a single preventScreenOn() request is limited to 5 |
| // seconds to prevent a buggy app from disabling the |
| // screen forever; see forceReenableScreen().) |
| boolean reallyTurnScreenOn = true; |
| if (mSpew) { |
| Log.d(TAG, "- turning screen on... mPreventScreenOn = " |
| + mPreventScreenOn); |
| } |
| |
| if (mPreventScreenOn) { |
| if (mSpew) { |
| Log.d(TAG, "- PREVENTING screen from really turning on!"); |
| } |
| reallyTurnScreenOn = false; |
| } |
| if (reallyTurnScreenOn) { |
| err = Power.setScreenState(true); |
| long identity = Binder.clearCallingIdentity(); |
| try { |
| mBatteryStats.noteScreenBrightness( |
| getPreferredBrightness()); |
| mBatteryStats.noteScreenOn(); |
| } catch (RemoteException e) { |
| Log.w(TAG, "RemoteException calling noteScreenOn on BatteryStatsService", e); |
| } finally { |
| Binder.restoreCallingIdentity(identity); |
| } |
| } else { |
| Power.setScreenState(false); |
| // But continue as if we really did turn the screen on... |
| err = 0; |
| } |
| |
| mScreenOnStartTime = SystemClock.elapsedRealtime(); |
| mLastTouchDown = 0; |
| mTotalTouchDownTime = 0; |
| mTouchCycles = 0; |
| EventLog.writeEvent(LOG_POWER_SCREEN_STATE, 1, becauseOfUser ? 1 : 0, |
| mTotalTouchDownTime, mTouchCycles); |
| if (err == 0) { |
| mPowerState |= SCREEN_ON_BIT; |
| sendNotificationLocked(true, -1); |
| } |
| } else { |
| mScreenOffTime = SystemClock.elapsedRealtime(); |
| long identity = Binder.clearCallingIdentity(); |
| try { |
| mBatteryStats.noteScreenOff(); |
| } catch (RemoteException e) { |
| Log.w(TAG, "RemoteException calling noteScreenOff on BatteryStatsService", e); |
| } finally { |
| Binder.restoreCallingIdentity(identity); |
| } |
| mPowerState &= ~SCREEN_ON_BIT; |
| if (!mScreenBrightness.animating) { |
| err = screenOffFinishedAnimatingLocked(becauseOfUser); |
| } else { |
| mOffBecauseOfUser = becauseOfUser; |
| err = 0; |
| mLastTouchDown = 0; |
| } |
| } |
| } |
| } |
| } |
| |
| private int screenOffFinishedAnimatingLocked(boolean becauseOfUser) { |
| // I don't think we need to check the current state here because all of these |
| // Power.setScreenState and sendNotificationLocked can both handle being |
| // called multiple times in the same state. -joeo |
| EventLog.writeEvent(LOG_POWER_SCREEN_STATE, 0, becauseOfUser ? 1 : 0, |
| mTotalTouchDownTime, mTouchCycles); |
| mLastTouchDown = 0; |
| int err = Power.setScreenState(false); |
| if (mScreenOnStartTime != 0) { |
| mScreenOnTime += SystemClock.elapsedRealtime() - mScreenOnStartTime; |
| mScreenOnStartTime = 0; |
| } |
| if (err == 0) { |
| int why = becauseOfUser |
| ? WindowManagerPolicy.OFF_BECAUSE_OF_USER |
| : WindowManagerPolicy.OFF_BECAUSE_OF_TIMEOUT; |
| sendNotificationLocked(false, why); |
| } |
| return err; |
| } |
| |
| private boolean batteryIsLow() { |
| return (!mIsPowered && |
| mBatteryService.getBatteryLevel() <= Power.LOW_BATTERY_THRESHOLD); |
| } |
| |
| private void updateLightsLocked(int newState, int forceState) { |
| final int oldState = mPowerState; |
| final int realDifference = (newState ^ oldState); |
| final int difference = realDifference | forceState; |
| if (difference == 0) { |
| return; |
| } |
| |
| int offMask = 0; |
| int dimMask = 0; |
| int onMask = 0; |
| |
| int preferredBrightness = getPreferredBrightness(); |
| boolean startAnimation = false; |
| |
| if ((difference & KEYBOARD_BRIGHT_BIT) != 0) { |
| if (ANIMATE_KEYBOARD_LIGHTS) { |
| if ((newState & KEYBOARD_BRIGHT_BIT) == 0) { |
| mKeyboardBrightness.setTargetLocked(Power.BRIGHTNESS_OFF, |
| ANIM_STEPS, INITIAL_KEYBOARD_BRIGHTNESS, |
| preferredBrightness); |
| } else { |
| mKeyboardBrightness.setTargetLocked(preferredBrightness, |
| ANIM_STEPS, INITIAL_KEYBOARD_BRIGHTNESS, |
| Power.BRIGHTNESS_OFF); |
| } |
| startAnimation = true; |
| } else { |
| if ((newState & KEYBOARD_BRIGHT_BIT) == 0) { |
| offMask |= KEYBOARD_BRIGHT_BIT; |
| } else { |
| onMask |= KEYBOARD_BRIGHT_BIT; |
| } |
| } |
| } |
| |
| if ((difference & BUTTON_BRIGHT_BIT) != 0) { |
| if (ANIMATE_BUTTON_LIGHTS) { |
| if ((newState & BUTTON_BRIGHT_BIT) == 0) { |
| mButtonBrightness.setTargetLocked(Power.BRIGHTNESS_OFF, |
| ANIM_STEPS, INITIAL_BUTTON_BRIGHTNESS, |
| preferredBrightness); |
| } else { |
| mButtonBrightness.setTargetLocked(preferredBrightness, |
| ANIM_STEPS, INITIAL_BUTTON_BRIGHTNESS, |
| Power.BRIGHTNESS_OFF); |
| } |
| startAnimation = true; |
| } else { |
| if ((newState & BUTTON_BRIGHT_BIT) == 0) { |
| offMask |= BUTTON_BRIGHT_BIT; |
| } else { |
| onMask |= BUTTON_BRIGHT_BIT; |
| } |
| } |
| } |
| |
| if ((difference & (SCREEN_ON_BIT | SCREEN_BRIGHT_BIT)) != 0) { |
| if (ANIMATE_SCREEN_LIGHTS) { |
| int nominalCurrentValue = -1; |
| // If there was an actual difference in the light state, then |
| // figure out the "ideal" current value based on the previous |
| // state. Otherwise, this is a change due to the brightness |
| // override, so we want to animate from whatever the current |
| // value is. |
| if ((realDifference & (SCREEN_ON_BIT | SCREEN_BRIGHT_BIT)) != 0) { |
| switch (oldState & (SCREEN_BRIGHT_BIT|SCREEN_ON_BIT)) { |
| case SCREEN_BRIGHT_BIT | SCREEN_ON_BIT: |
| nominalCurrentValue = preferredBrightness; |
| break; |
| case SCREEN_ON_BIT: |
| nominalCurrentValue = Power.BRIGHTNESS_DIM; |
| break; |
| case 0: |
| nominalCurrentValue = Power.BRIGHTNESS_OFF; |
| break; |
| case SCREEN_BRIGHT_BIT: |
| default: |
| // not possible |
| nominalCurrentValue = (int)mScreenBrightness.curValue; |
| break; |
| } |
| } |
| int brightness = preferredBrightness; |
| int steps = ANIM_STEPS; |
| if ((newState & SCREEN_BRIGHT_BIT) == 0) { |
| // dim or turn off backlight, depending on if the screen is on |
| // the scale is because the brightness ramp isn't linear and this biases |
| // it so the later parts take longer. |
| final float scale = 1.5f; |
| float ratio = (((float)Power.BRIGHTNESS_DIM)/preferredBrightness); |
| if (ratio > 1.0f) ratio = 1.0f; |
| if ((newState & SCREEN_ON_BIT) == 0) { |
| if ((oldState & SCREEN_BRIGHT_BIT) != 0) { |
| // was bright |
| steps = ANIM_STEPS; |
| } else { |
| // was dim |
| steps = (int)(ANIM_STEPS*ratio*scale); |
| } |
| brightness = Power.BRIGHTNESS_OFF; |
| } else { |
| if ((oldState & SCREEN_ON_BIT) != 0) { |
| // was bright |
| steps = (int)(ANIM_STEPS*(1.0f-ratio)*scale); |
| } else { |
| // was dim |
| steps = (int)(ANIM_STEPS*ratio); |
| } |
| if (mStayOnConditions != 0 && mBatteryService.isPowered(mStayOnConditions)) { |
| // If the "stay on while plugged in" option is |
| // turned on, then the screen will often not |
| // automatically turn off while plugged in. To |
| // still have a sense of when it is inactive, we |
| // will then count going dim as turning off. |
| mScreenOffTime = SystemClock.elapsedRealtime(); |
| } |
| brightness = Power.BRIGHTNESS_DIM; |
| } |
| } |
| long identity = Binder.clearCallingIdentity(); |
| try { |
| mBatteryStats.noteScreenBrightness(brightness); |
| } catch (RemoteException e) { |
| // Nothing interesting to do. |
| } finally { |
| Binder.restoreCallingIdentity(identity); |
| } |
| mScreenBrightness.setTargetLocked(brightness, |
| steps, INITIAL_SCREEN_BRIGHTNESS, nominalCurrentValue); |
| startAnimation = true; |
| } else { |
| if ((newState & SCREEN_BRIGHT_BIT) == 0) { |
| // dim or turn off backlight, depending on if the screen is on |
| if ((newState & SCREEN_ON_BIT) == 0) { |
| offMask |= SCREEN_BRIGHT_BIT; |
| } else { |
| dimMask |= SCREEN_BRIGHT_BIT; |
| } |
| } else { |
| onMask |= SCREEN_BRIGHT_BIT; |
| } |
| } |
| } |
| |
| if (startAnimation) { |
| if (mSpew) { |
| Log.i(TAG, "Scheduling light animator!"); |
| } |
| mHandler.removeCallbacks(mLightAnimator); |
| mHandler.post(mLightAnimator); |
| } |
| |
| if (offMask != 0) { |
| //Log.i(TAG, "Setting brightess off: " + offMask); |
| setLightBrightness(offMask, Power.BRIGHTNESS_OFF); |
| } |
| if (dimMask != 0) { |
| int brightness = Power.BRIGHTNESS_DIM; |
| if ((newState & BATTERY_LOW_BIT) != 0 && |
| brightness > Power.BRIGHTNESS_LOW_BATTERY) { |
| brightness = Power.BRIGHTNESS_LOW_BATTERY; |
| } |
| //Log.i(TAG, "Setting brightess dim " + brightness + ": " + offMask); |
| setLightBrightness(dimMask, brightness); |
| } |
| if (onMask != 0) { |
| int brightness = getPreferredBrightness(); |
| if ((newState & BATTERY_LOW_BIT) != 0 && |
| brightness > Power.BRIGHTNESS_LOW_BATTERY) { |
| brightness = Power.BRIGHTNESS_LOW_BATTERY; |
| } |
| //Log.i(TAG, "Setting brightess on " + brightness + ": " + onMask); |
| setLightBrightness(onMask, brightness); |
| } |
| } |
| |
| private void setLightBrightness(int mask, int value) { |
| if ((mask & SCREEN_BRIGHT_BIT) != 0) { |
| mHardware.setLightBrightness_UNCHECKED(HardwareService.LIGHT_ID_BACKLIGHT, value); |
| } |
| if ((mask & BUTTON_BRIGHT_BIT) != 0) { |
| mHardware.setLightBrightness_UNCHECKED(HardwareService.LIGHT_ID_BUTTONS, value); |
| } |
| if ((mask & KEYBOARD_BRIGHT_BIT) != 0) { |
| mHardware.setLightBrightness_UNCHECKED(HardwareService.LIGHT_ID_KEYBOARD, value); |
| } |
| } |
| |
| class BrightnessState { |
| final int mask; |
| |
| boolean initialized; |
| int targetValue; |
| float curValue; |
| float delta; |
| boolean animating; |
| |
| BrightnessState(int m) { |
| mask = m; |
| } |
| |
| public void dump(PrintWriter pw, String prefix) { |
| pw.println(prefix + "animating=" + animating |
| + " targetValue=" + targetValue |
| + " curValue=" + curValue |
| + " delta=" + delta); |
| } |
| |
| void setTargetLocked(int target, int stepsToTarget, int initialValue, |
| int nominalCurrentValue) { |
| if (!initialized) { |
| initialized = true; |
| curValue = (float)initialValue; |
| } |
| targetValue = target; |
| delta = (targetValue - |
| (nominalCurrentValue >= 0 ? nominalCurrentValue : curValue)) |
| / stepsToTarget; |
| if (mSpew) { |
| String noticeMe = nominalCurrentValue == curValue ? "" : " ******************"; |
| Log.i(TAG, "Setting target " + mask + ": cur=" + curValue |
| + " target=" + targetValue + " delta=" + delta |
| + " nominalCurrentValue=" + nominalCurrentValue |
| + noticeMe); |
| } |
| animating = true; |
| } |
| |
| boolean stepLocked() { |
| if (!animating) return false; |
| if (false && mSpew) { |
| Log.i(TAG, "Step target " + mask + ": cur=" + curValue |
| + " target=" + targetValue + " delta=" + delta); |
| } |
| curValue += delta; |
| int curIntValue = (int)curValue; |
| boolean more = true; |
| if (delta == 0) { |
| curValue = curIntValue = targetValue; |
| more = false; |
| } else if (delta > 0) { |
| if (curIntValue >= targetValue) { |
| curValue = curIntValue = targetValue; |
| more = false; |
| } |
| } else { |
| if (curIntValue <= targetValue) { |
| curValue = curIntValue = targetValue; |
| more = false; |
| } |
| } |
| //Log.i(TAG, "Animating brightess " + curIntValue + ": " + mask); |
| setLightBrightness(mask, curIntValue); |
| animating = more; |
| if (!more) { |
| if (mask == SCREEN_BRIGHT_BIT && curIntValue == Power.BRIGHTNESS_OFF) { |
| screenOffFinishedAnimatingLocked(mOffBecauseOfUser); |
| } |
| } |
| return more; |
| } |
| } |
| |
| private class LightAnimator implements Runnable { |
| public void run() { |
| synchronized (mLocks) { |
| long now = SystemClock.uptimeMillis(); |
| boolean more = mScreenBrightness.stepLocked(); |
| if (mKeyboardBrightness.stepLocked()) { |
| more = true; |
| } |
| if (mButtonBrightness.stepLocked()) { |
| more = true; |
| } |
| if (more) { |
| mHandler.postAtTime(mLightAnimator, now+(1000/60)); |
| } |
| } |
| } |
| } |
| |
| private int getPreferredBrightness() { |
| try { |
| if (mScreenBrightnessOverride >= 0) { |
| return mScreenBrightnessOverride; |
| } |
| final int brightness = Settings.System.getInt(mContext.getContentResolver(), |
| SCREEN_BRIGHTNESS); |
| // Don't let applications turn the screen all the way off |
| return Math.max(brightness, Power.BRIGHTNESS_DIM); |
| } catch (SettingNotFoundException snfe) { |
| return Power.BRIGHTNESS_ON; |
| } |
| } |
| |
| boolean screenIsOn() { |
| synchronized (mLocks) { |
| return (mPowerState & SCREEN_ON_BIT) != 0; |
| } |
| } |
| |
| boolean screenIsBright() { |
| synchronized (mLocks) { |
| return (mPowerState & SCREEN_BRIGHT) == SCREEN_BRIGHT; |
| } |
| } |
| |
| public void userActivityWithForce(long time, boolean noChangeLights, boolean force) { |
| mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null); |
| userActivity(time, noChangeLights, OTHER_EVENT, force); |
| } |
| |
| public void userActivity(long time, boolean noChangeLights) { |
| userActivity(time, noChangeLights, OTHER_EVENT, false); |
| } |
| |
| public void userActivity(long time, boolean noChangeLights, int eventType) { |
| userActivity(time, noChangeLights, eventType, false); |
| } |
| |
| public void userActivity(long time, boolean noChangeLights, int eventType, boolean force) { |
| //mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null); |
| |
| if (((mPokey & POKE_LOCK_IGNORE_CHEEK_EVENTS) != 0) |
| && (eventType == CHEEK_EVENT || eventType == TOUCH_EVENT)) { |
| if (false) { |
| Log.d(TAG, "dropping cheek or short event mPokey=0x" + Integer.toHexString(mPokey)); |
| } |
| return; |
| } |
| |
| if (((mPokey & POKE_LOCK_IGNORE_TOUCH_AND_CHEEK_EVENTS) != 0) |
| && (eventType == TOUCH_EVENT || eventType == TOUCH_UP_EVENT |
| || eventType == LONG_TOUCH_EVENT || eventType == CHEEK_EVENT)) { |
| if (false) { |
| Log.d(TAG, "dropping touch mPokey=0x" + Integer.toHexString(mPokey)); |
| } |
| return; |
| } |
| |
| |
| if (false) { |
| if (((mPokey & POKE_LOCK_IGNORE_CHEEK_EVENTS) != 0)) { |
| Log.d(TAG, "userActivity !!!");//, new RuntimeException()); |
| } else { |
| Log.d(TAG, "mPokey=0x" + Integer.toHexString(mPokey)); |
| } |
| } |
| |
| synchronized (mLocks) { |
| if (mSpew) { |
| Log.d(TAG, "userActivity mLastEventTime=" + mLastEventTime + " time=" + time |
| + " mUserActivityAllowed=" + mUserActivityAllowed |
| + " mUserState=0x" + Integer.toHexString(mUserState) |
| + " mWakeLockState=0x" + Integer.toHexString(mWakeLockState)); |
| } |
| if (mLastEventTime <= time || force) { |
| mLastEventTime = time; |
| if (mUserActivityAllowed || force) { |
| // Only turn on button backlights if a button was pressed. |
| if (eventType == BUTTON_EVENT) { |
| mUserState = (mKeyboardVisible ? ALL_BRIGHT : SCREEN_BUTTON_BRIGHT); |
| } else { |
| // don't clear button/keyboard backlights when the screen is touched. |
| mUserState |= SCREEN_BRIGHT; |
| } |
| |
| int uid = Binder.getCallingUid(); |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| mBatteryStats.noteUserActivity(uid, eventType); |
| } catch (RemoteException e) { |
| // Ignore |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| |
| mWakeLockState = mLocks.reactivateScreenLocksLocked(); |
| setPowerState(mUserState | mWakeLockState, noChangeLights, true); |
| setTimeoutLocked(time, SCREEN_BRIGHT); |
| } |
| } |
| } |
| } |
| |
| /** |
| * The user requested that we go to sleep (probably with the power button). |
| * This overrides all wake locks that are held. |
| */ |
| public void goToSleep(long time) |
| { |
| mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null); |
| synchronized (mLocks) { |
| goToSleepLocked(time); |
| } |
| } |
| |
| /** |
| * Returns the time the screen has been on since boot, in millis. |
| * @return screen on time |
| */ |
| public long getScreenOnTime() { |
| synchronized (mLocks) { |
| if (mScreenOnStartTime == 0) { |
| return mScreenOnTime; |
| } else { |
| return SystemClock.elapsedRealtime() - mScreenOnStartTime + mScreenOnTime; |
| } |
| } |
| } |
| |
| private void goToSleepLocked(long time) { |
| |
| if (mLastEventTime <= time) { |
| mLastEventTime = time; |
| // cancel all of the wake locks |
| mWakeLockState = SCREEN_OFF; |
| int N = mLocks.size(); |
| int numCleared = 0; |
| for (int i=0; i<N; i++) { |
| WakeLock wl = mLocks.get(i); |
| if (isScreenLock(wl.flags)) { |
| mLocks.get(i).activated = false; |
| numCleared++; |
| } |
| } |
| EventLog.writeEvent(LOG_POWER_SLEEP_REQUESTED, numCleared); |
| mStillNeedSleepNotification = true; |
| mUserState = SCREEN_OFF; |
| setPowerState(SCREEN_OFF, false, true); |
| cancelTimerLocked(); |
| } |
| } |
| |
| public long timeSinceScreenOn() { |
| synchronized (mLocks) { |
| if ((mPowerState & SCREEN_ON_BIT) != 0) { |
| return 0; |
| } |
| return SystemClock.elapsedRealtime() - mScreenOffTime; |
| } |
| } |
| |
| public void setKeyboardVisibility(boolean visible) { |
| mKeyboardVisible = visible; |
| } |
| |
| /** |
| * When the keyguard is up, it manages the power state, and userActivity doesn't do anything. |
| */ |
| public void enableUserActivity(boolean enabled) { |
| synchronized (mLocks) { |
| mUserActivityAllowed = enabled; |
| mLastEventTime = SystemClock.uptimeMillis(); // we might need to pass this in |
| } |
| } |
| |
| /** Sets the screen off timeouts: |
| * mKeylightDelay |
| * mDimDelay |
| * mScreenOffDelay |
| * */ |
| private void setScreenOffTimeoutsLocked() { |
| if ((mPokey & POKE_LOCK_SHORT_TIMEOUT) != 0) { |
| mKeylightDelay = mShortKeylightDelay; // Configurable via Gservices |
| mDimDelay = -1; |
| mScreenOffDelay = 0; |
| } else if ((mPokey & POKE_LOCK_MEDIUM_TIMEOUT) != 0) { |
| mKeylightDelay = MEDIUM_KEYLIGHT_DELAY; |
| mDimDelay = -1; |
| mScreenOffDelay = 0; |
| } else { |
| int totalDelay = mTotalDelaySetting; |
| mKeylightDelay = LONG_KEYLIGHT_DELAY; |
| if (totalDelay < 0) { |
| mScreenOffDelay = Integer.MAX_VALUE; |
| } else if (mKeylightDelay < totalDelay) { |
| // subtract the time that the keylight delay. This will give us the |
| // remainder of the time that we need to sleep to get the accurate |
| // screen off timeout. |
| mScreenOffDelay = totalDelay - mKeylightDelay; |
| } else { |
| mScreenOffDelay = 0; |
| } |
| if (mDimScreen && totalDelay >= (LONG_KEYLIGHT_DELAY + LONG_DIM_TIME)) { |
| mDimDelay = mScreenOffDelay - LONG_DIM_TIME; |
| mScreenOffDelay = LONG_DIM_TIME; |
| } else { |
| mDimDelay = -1; |
| } |
| } |
| if (mSpew) { |
| Log.d(TAG, "setScreenOffTimeouts mKeylightDelay=" + mKeylightDelay |
| + " mDimDelay=" + mDimDelay + " mScreenOffDelay=" + mScreenOffDelay |
| + " mDimScreen=" + mDimScreen); |
| } |
| } |
| |
| /** |
| * Refreshes cached Gservices settings. Called once on startup, and |
| * on subsequent Settings.Gservices.CHANGED_ACTION broadcasts (see |
| * GservicesChangedReceiver). |
| */ |
| private void updateGservicesValues() { |
| mShortKeylightDelay = Settings.Gservices.getInt( |
| mContext.getContentResolver(), |
| Settings.Gservices.SHORT_KEYLIGHT_DELAY_MS, |
| SHORT_KEYLIGHT_DELAY_DEFAULT); |
| // Log.i(TAG, "updateGservicesValues(): mShortKeylightDelay now " + mShortKeylightDelay); |
| } |
| |
| /** |
| * Receiver for the Gservices.CHANGED_ACTION broadcast intent, |
| * which tells us we need to refresh our cached Gservices settings. |
| */ |
| private class GservicesChangedReceiver extends BroadcastReceiver { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| // Log.i(TAG, "GservicesChangedReceiver.onReceive(): " + intent); |
| updateGservicesValues(); |
| } |
| } |
| |
| private class LockList extends ArrayList<WakeLock> |
| { |
| void addLock(WakeLock wl) |
| { |
| int index = getIndex(wl.binder); |
| if (index < 0) { |
| this.add(wl); |
| } |
| } |
| |
| WakeLock removeLock(IBinder binder) |
| { |
| int index = getIndex(binder); |
| if (index >= 0) { |
| return this.remove(index); |
| } else { |
| return null; |
| } |
| } |
| |
| int getIndex(IBinder binder) |
| { |
| int N = this.size(); |
| for (int i=0; i<N; i++) { |
| if (this.get(i).binder == binder) { |
| return i; |
| } |
| } |
| return -1; |
| } |
| |
| int gatherState() |
| { |
| int result = 0; |
| int N = this.size(); |
| for (int i=0; i<N; i++) { |
| WakeLock wl = this.get(i); |
| if (wl.activated) { |
| if (isScreenLock(wl.flags)) { |
| result |= wl.minState; |
| } |
| } |
| } |
| return result; |
| } |
| |
| int reactivateScreenLocksLocked() |
| { |
| int result = 0; |
| int N = this.size(); |
| for (int i=0; i<N; i++) { |
| WakeLock wl = this.get(i); |
| if (isScreenLock(wl.flags)) { |
| wl.activated = true; |
| result |= wl.minState; |
| } |
| } |
| return result; |
| } |
| } |
| |
| void setPolicy(WindowManagerPolicy p) { |
| synchronized (mLocks) { |
| mPolicy = p; |
| mLocks.notifyAll(); |
| } |
| } |
| |
| WindowManagerPolicy getPolicyLocked() { |
| while (mPolicy == null || !mDoneBooting) { |
| try { |
| mLocks.wait(); |
| } catch (InterruptedException e) { |
| // Ignore |
| } |
| } |
| return mPolicy; |
| } |
| |
| void systemReady() { |
| synchronized (mLocks) { |
| Log.d(TAG, "system ready!"); |
| mDoneBooting = true; |
| long identity = Binder.clearCallingIdentity(); |
| try { |
| mBatteryStats.noteScreenBrightness(getPreferredBrightness()); |
| mBatteryStats.noteScreenOn(); |
| } catch (RemoteException e) { |
| // Nothing interesting to do. |
| } finally { |
| Binder.restoreCallingIdentity(identity); |
| } |
| userActivity(SystemClock.uptimeMillis(), false, BUTTON_EVENT, true); |
| updateWakeLockLocked(); |
| mLocks.notifyAll(); |
| } |
| } |
| |
| public void monitor() { |
| synchronized (mLocks) { } |
| } |
| } |
