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Diffstat (limited to 'services/java/com/android/server/PowerManagerService.java')
| -rw-r--r-- | services/java/com/android/server/PowerManagerService.java | 3405 |
1 files changed, 0 insertions, 3405 deletions
diff --git a/services/java/com/android/server/PowerManagerService.java b/services/java/com/android/server/PowerManagerService.java deleted file mode 100644 index 888ec69..0000000 --- a/services/java/com/android/server/PowerManagerService.java +++ /dev/null @@ -1,3405 +0,0 @@ -/* - * 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 com.android.server.pm.ShutdownThread; - -import android.app.ActivityManagerNative; -import android.app.IActivityManager; -import android.content.BroadcastReceiver; -import android.content.ContentQueryMap; -import android.content.ContentResolver; -import android.content.ContentValues; -import android.content.Context; -import android.content.Intent; -import android.content.IntentFilter; -import android.content.pm.PackageManager; -import android.content.res.Resources; -import android.database.ContentObserver; -import android.database.Cursor; -import android.hardware.Sensor; -import android.hardware.SensorEvent; -import android.hardware.SensorEventListener; -import android.hardware.SensorManager; -import android.hardware.SystemSensorManager; -import android.os.BatteryManager; -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.Message; -import android.os.PowerManager; -import android.os.Process; -import android.os.RemoteException; -import android.os.SystemClock; -import android.os.SystemProperties; -import android.os.WorkSource; -import android.provider.Settings; -import android.util.EventLog; -import android.util.Log; -import android.util.Slog; -import android.view.WindowManagerPolicy; -import static android.view.WindowManagerPolicy.OFF_BECAUSE_OF_PROX_SENSOR; -import static android.provider.Settings.System.DIM_SCREEN; -import static android.provider.Settings.System.SCREEN_BRIGHTNESS; -import static android.provider.Settings.System.SCREEN_BRIGHTNESS_MODE; -import static android.provider.Settings.System.SCREEN_AUTO_BRIGHTNESS_ADJ; -import static android.provider.Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC; -import static android.provider.Settings.System.SCREEN_OFF_TIMEOUT; -import static android.provider.Settings.System.STAY_ON_WHILE_PLUGGED_IN; -import static android.provider.Settings.System.WINDOW_ANIMATION_SCALE; -import static android.provider.Settings.System.TRANSITION_ANIMATION_SCALE; - -import java.io.FileDescriptor; -import java.io.IOException; -import java.io.PrintWriter; -import java.util.ArrayList; -import java.util.HashMap; -import java.util.Observable; -import java.util.Observer; - -public class PowerManagerService extends IPowerManager.Stub - implements LocalPowerManager, Watchdog.Monitor { - private static final int NOMINAL_FRAME_TIME_MS = 1000/60; - - private static final String TAG = "PowerManagerService"; - static final String PARTIAL_NAME = "PowerManagerService"; - - // Wake lock that ensures that the CPU is running. The screen might not be on. - private static final int PARTIAL_WAKE_LOCK_ID = 1; - - // Wake lock that ensures that the screen is on. - private static final int FULL_WAKE_LOCK_ID = 2; - - static final boolean DEBUG_SCREEN_ON = false; - - 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 - | PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK; - - // time since last state: time since last event: - // The short keylight delay comes from secure settings; 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 - - // How long to wait to debounce light sensor changes in milliseconds - private static final int LIGHT_SENSOR_DELAY = 2000; - - // light sensor events rate in microseconds - private static final int LIGHT_SENSOR_RATE = 1000000; - - // Expansion of range of light values when applying scale from light - // sensor brightness setting, in the [0..255] brightness range. - private static final int LIGHT_SENSOR_RANGE_EXPANSION = 20; - - // Scaling factor of the light sensor brightness setting when applying - // it to the final brightness. - private static final int LIGHT_SENSOR_OFFSET_SCALE = 8; - - // For debouncing the proximity sensor in milliseconds - private static final int PROXIMITY_SENSOR_DELAY = 1000; - - // trigger proximity if distance is less than 5 cm - private static final float PROXIMITY_THRESHOLD = 5.0f; - - // Cached secure settings; see updateSettingsValues() - private int mShortKeylightDelay = SHORT_KEYLIGHT_DELAY_DEFAULT; - - // Default timeout for screen off, if not found in settings database = 15 seconds. - private static final int DEFAULT_SCREEN_OFF_TIMEOUT = 15000; - - // Screen brightness should always have a value, but just in case... - private static final int DEFAULT_SCREEN_BRIGHTNESS = 192; - - // Threshold for BRIGHTNESS_LOW_BATTERY (percentage) - // Screen will stay dim if battery level is <= LOW_BATTERY_THRESHOLD - private static final int LOW_BATTERY_THRESHOLD = 10; - - // flags for setPowerState - private static final int ALL_LIGHTS_OFF = 0x00000000; - 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; - - // animate screen lights in PowerManager (as opposed to SurfaceFlinger) - boolean mAnimateScreenLights = true; - - static final int ANIM_STEPS = 60; // nominal # of frames at 60Hz - // Slower animation for autobrightness changes - static final int AUTOBRIGHTNESS_ANIM_STEPS = 2 * ANIM_STEPS; - // Even slower animation for autodimness changes. Set to max to effectively disable dimming. - // Note 100 is used to keep the mWindowScaleAnimation scaling below from overflowing an int. - static final int AUTODIMNESS_ANIM_STEPS = Integer.MAX_VALUE / (NOMINAL_FRAME_TIME_MS * 100); - // Number of steps when performing a more immediate brightness change. - static final int IMMEDIATE_ANIM_STEPS = 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 = PowerManager.BRIGHTNESS_OFF; - static final int INITIAL_KEYBOARD_BRIGHTNESS = PowerManager.BRIGHTNESS_OFF; - - private final int MY_UID; - private final int MY_PID; - - private boolean mDoneBooting = false; - private boolean mBootCompleted = false; - private boolean mHeadless = false; - private int mStayOnConditions = 0; - private final int[] mBroadcastQueue = new int[] { -1, -1, -1 }; - private final int[] mBroadcastWhy = new int[3]; - private boolean mPreparingForScreenOn = false; - private boolean mSkippedScreenOn = false; - private boolean mInitialized = false; - private int mPartialCount = 0; - private int mPowerState; - // mScreenOffReason can be WindowManagerPolicy.OFF_BECAUSE_OF_USER, - // WindowManagerPolicy.OFF_BECAUSE_OF_TIMEOUT or WindowManagerPolicy.OFF_BECAUSE_OF_PROX_SENSOR - private int mScreenOffReason; - private int mUserState; - private boolean mKeyboardVisible = false; - private boolean mUserActivityAllowed = true; - private int mProximityWakeLockCount = 0; - private boolean mProximitySensorEnabled = false; - private boolean mProximitySensorActive = false; - private int mProximityPendingValue = -1; // -1 == nothing, 0 == inactive, 1 == active - private long mLastProximityEventTime; - private int mScreenOffTimeoutSetting; - private int mMaximumScreenOffTimeout = Integer.MAX_VALUE; - 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 LightsService mLightsService; - private Context mContext; - private LightsService.Light mLcdLight; - private LightsService.Light mButtonLight; - private LightsService.Light mKeyboardLight; - private LightsService.Light mAttentionLight; - private UnsynchronizedWakeLock mBroadcastWakeLock; - private UnsynchronizedWakeLock mStayOnWhilePluggedInScreenDimLock; - private UnsynchronizedWakeLock mStayOnWhilePluggedInPartialLock; - private UnsynchronizedWakeLock mPreventScreenOnPartialLock; - private UnsynchronizedWakeLock mProximityPartialLock; - private HandlerThread mHandlerThread; - private Handler mScreenOffHandler; - private Handler mScreenBrightnessHandler; - private Handler mHandler; - private final TimeoutTask mTimeoutTask = new TimeoutTask(); - private ScreenBrightnessAnimator mScreenBrightnessAnimator; - private boolean mWaitingForFirstLightSensor = false; - private boolean mStillNeedSleepNotification; - private boolean mIsPowered = false; - private IActivityManager mActivityService; - private IBatteryStats mBatteryStats; - private BatteryService mBatteryService; - private SensorManager mSensorManager; - private Sensor mProximitySensor; - private Sensor mLightSensor; - private boolean mLightSensorEnabled; - private float mLightSensorValue = -1; - private boolean mProxIgnoredBecauseScreenTurnedOff = false; - private int mHighestLightSensorValue = -1; - private boolean mLightSensorPendingDecrease = false; - private boolean mLightSensorPendingIncrease = false; - private float mLightSensorPendingValue = -1; - private float mLightSensorAdjustSetting = 0; - private int mLightSensorScreenBrightness = -1; - private int mLightSensorButtonBrightness = -1; - private int mLightSensorKeyboardBrightness = -1; - private boolean mDimScreen = true; - private boolean mIsDocked = false; - private long mNextTimeout; - private volatile int mPokey = 0; - private volatile boolean mPokeAwakeOnSet = false; - private volatile boolean mInitComplete = false; - private final HashMap<IBinder,PokeLock> mPokeLocks = new HashMap<IBinder,PokeLock>(); - // mLastScreenOnTime is the time the screen was last turned on - private long mLastScreenOnTime; - private boolean mPreventScreenOn; - private int mScreenBrightnessSetting = DEFAULT_SCREEN_BRIGHTNESS; - private int mScreenBrightnessOverride = -1; - private int mButtonBrightnessOverride = -1; - private int mScreenBrightnessDim; - private boolean mUseSoftwareAutoBrightness; - private boolean mAutoBrightessEnabled; - private int[] mAutoBrightnessLevels; - private int[] mLcdBacklightValues; - private int[] mButtonBacklightValues; - private int[] mKeyboardBacklightValues; - private int mLightSensorWarmupTime; - boolean mUnplugTurnsOnScreen; - private int mWarningSpewThrottleCount; - private long mWarningSpewThrottleTime; - private int mAnimationSetting = ANIM_SETTING_OFF; - private float mWindowScaleAnimation; - - // Must match with the ISurfaceComposer constants in C++. - private static final int ANIM_SETTING_ON = 0x01; - private static final int ANIM_SETTING_OFF = 0x10; - - // 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; - private static final boolean mDebugProximitySensor = (false || mSpew); - private static final boolean mDebugLightSensor = (false || mSpew); - private static final boolean mDebugLightAnimation = (false || mSpew); - - private native void nativeInit(); - private native void nativeSetPowerState(boolean screenOn, boolean screenBright); - private native void nativeStartSurfaceFlingerAnimation(int mode); - private static native void nativeAcquireWakeLock(int lock, String id); - private static native void nativeReleaseWakeLock(String id); - private static native int nativeSetScreenState(boolean on); - private static native void nativeShutdown(); - private static native void nativeReboot(String reason) throws IOException; - - /* - static PrintStream mLog; - static { - try { - mLog = new PrintStream("/data/power.log"); - } - catch (FileNotFoundException e) { - android.util.Slog.e(TAG, "Life is hard", e); - } - } - static class Log { - static void d(String tag, String s) { - mLog.println(s); - android.util.Slog.d(tag, s); - } - static void i(String tag, String s) { - mLog.println(s); - android.util.Slog.i(tag, s); - } - static void w(String tag, String s) { - mLog.println(s); - android.util.Slog.w(tag, s); - } - static void e(String tag, String s) { - mLog.println(s); - android.util.Slog.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; - boolean mHeld; - - 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, MY_PID, mTag, null); - mHeld = true; - } finally { - Binder.restoreCallingIdentity(ident); - } - } - } - - public void release() { - if (!mRefCounted || --mCount == 0) { - PowerManagerService.this.releaseWakeLockLocked(mToken, 0, false); - mHeld = false; - } - if (mCount < 0) { - throw new RuntimeException("WakeLock under-locked " + mTag); - } - } - - public boolean isHeld() - { - return mHeld; - } - - public String toString() { - return "UnsynchronizedWakeLock(mFlags=0x" + Integer.toHexString(mFlags) - + " mCount=" + mCount + " mHeld=" + mHeld + ")"; - } - } - - 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. - // to avoid turning on the screen when unplugging, we only trigger - // user activity when screen was already on. - // temporarily set mUserActivityAllowed to true so this will work - // even when the keyguard is on. - // However, you can also set config_unplugTurnsOnScreen to have it - // turn on. Some devices want this because they don't have a - // charging LED. - synchronized (mLocks) { - if (!wasPowered || (mPowerState & SCREEN_ON_BIT) != 0 || - mUnplugTurnsOnScreen) { - forceUserActivityLocked(); - } - } - } - } - } - } - - private final class BootCompletedReceiver extends BroadcastReceiver { - @Override - public void onReceive(Context context, Intent intent) { - bootCompleted(); - } - } - - private final class DockReceiver extends BroadcastReceiver { - @Override - public void onReceive(Context context, Intent intent) { - int state = intent.getIntExtra(Intent.EXTRA_DOCK_STATE, - Intent.EXTRA_DOCK_STATE_UNDOCKED); - dockStateChanged(state); - } - } - - /** - * 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); - } - - public void setMaximumScreenOffTimeount(int timeMs) { - mContext.enforceCallingOrSelfPermission( - android.Manifest.permission.WRITE_SECURE_SETTINGS, null); - synchronized (mLocks) { - mMaximumScreenOffTimeout = timeMs; - // recalculate everything - setScreenOffTimeoutsLocked(); - } - } - - int getStayOnConditionsLocked() { - return mMaximumScreenOffTimeout <= 0 || mMaximumScreenOffTimeout == Integer.MAX_VALUE - ? mStayOnConditions : 0; - } - - private class SettingsObserver implements Observer { - private int getInt(String name, int defValue) { - ContentValues values = mSettings.getValues(name); - Integer iVal = values != null ? values.getAsInteger(Settings.System.VALUE) : null; - return iVal != null ? iVal : defValue; - } - - private float getFloat(String name, float defValue) { - ContentValues values = mSettings.getValues(name); - Float fVal = values != null ? values.getAsFloat(Settings.System.VALUE) : null; - return fVal != null ? fVal : defValue; - } - - public void update(Observable o, Object arg) { - synchronized (mLocks) { - // STAY_ON_WHILE_PLUGGED_IN, default to when plugged into AC - mStayOnConditions = getInt(STAY_ON_WHILE_PLUGGED_IN, - BatteryManager.BATTERY_PLUGGED_AC); - updateWakeLockLocked(); - - // SCREEN_OFF_TIMEOUT, default to 15 seconds - mScreenOffTimeoutSetting = getInt(SCREEN_OFF_TIMEOUT, DEFAULT_SCREEN_OFF_TIMEOUT); - - // DIM_SCREEN - //mDimScreen = getInt(DIM_SCREEN) != 0; - - mScreenBrightnessSetting = getInt(SCREEN_BRIGHTNESS, DEFAULT_SCREEN_BRIGHTNESS); - mLightSensorAdjustSetting = 0; //getFloat(SCREEN_AUTO_BRIGHTNESS_ADJ, 0); - - // SCREEN_BRIGHTNESS_MODE, default to manual - setScreenBrightnessMode(getInt(SCREEN_BRIGHTNESS_MODE, - Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL)); - - // recalculate everything - setScreenOffTimeoutsLocked(); - - mWindowScaleAnimation = getFloat(WINDOW_ANIMATION_SCALE, 1.0f); - final float transitionScale = getFloat(TRANSITION_ANIMATION_SCALE, 1.0f); - mAnimationSetting = 0; - if (mWindowScaleAnimation > 0.5f) { - mAnimationSetting |= ANIM_SETTING_OFF; - } - if (transitionScale > 0.5f) { - // Uncomment this if you want the screen-on animation. - // mAnimationSetting |= ANIM_SETTING_ON; - } - } - } - } - - PowerManagerService() { - // Hack to get our uid... should have a func for this. - long token = Binder.clearCallingIdentity(); - MY_UID = Process.myUid(); - MY_PID = Process.myPid(); - Binder.restoreCallingIdentity(token); - - // assume nothing is on yet - mUserState = mPowerState = 0; - - // Add ourself to the Watchdog monitors. - Watchdog.getInstance().addMonitor(this); - - nativeInit(); - } - - private ContentQueryMap mSettings; - - void init(Context context, LightsService lights, IActivityManager activity, - BatteryService battery) { - mLightsService = lights; - mContext = context; - mActivityService = activity; - mBatteryStats = BatteryStatsService.getService(); - mBatteryService = battery; - - mLcdLight = lights.getLight(LightsService.LIGHT_ID_BACKLIGHT); - mButtonLight = lights.getLight(LightsService.LIGHT_ID_BUTTONS); - mKeyboardLight = lights.getLight(LightsService.LIGHT_ID_KEYBOARD); - mAttentionLight = lights.getLight(LightsService.LIGHT_ID_ATTENTION); - mHeadless = "1".equals(SystemProperties.get("ro.config.headless", "0")); - - mInitComplete = false; - mScreenBrightnessAnimator = new ScreenBrightnessAnimator("mScreenBrightnessUpdaterThread", - Process.THREAD_PRIORITY_DISPLAY); - mScreenBrightnessAnimator.start(); - - synchronized (mScreenBrightnessAnimator) { - while (!mInitComplete) { - try { - mScreenBrightnessAnimator.wait(); - } catch (InterruptedException e) { - // Ignore - } - } - } - - mInitComplete = false; - mHandlerThread = new HandlerThread("PowerManagerService") { - @Override - protected void onLooperPrepared() { - super.onLooperPrepared(); - initInThread(); - } - }; - mHandlerThread.start(); - - synchronized (mHandlerThread) { - while (!mInitComplete) { - try { - mHandlerThread.wait(); - } catch (InterruptedException e) { - // Ignore - } - } - } - - synchronized (mLocks) { - updateNativePowerStateLocked(); - // We make sure to start out with the screen on due to user activity. - // (They did just boot their device, after all.) - forceUserActivityLocked(); - mInitialized = true; - } - } - - 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); - mProximityPartialLock = new UnsynchronizedWakeLock( - PowerManager.PARTIAL_WAKE_LOCK, "Proximity Partial", false); - - mScreenOnIntent = new Intent(Intent.ACTION_SCREEN_ON); - mScreenOnIntent.addFlags( - Intent.FLAG_RECEIVER_REGISTERED_ONLY | Intent.FLAG_RECEIVER_FOREGROUND); - mScreenOffIntent = new Intent(Intent.ACTION_SCREEN_OFF); - mScreenOffIntent.addFlags( - Intent.FLAG_RECEIVER_REGISTERED_ONLY | Intent.FLAG_RECEIVER_FOREGROUND); - - Resources resources = mContext.getResources(); - - mAnimateScreenLights = resources.getBoolean( - com.android.internal.R.bool.config_animateScreenLights); - - mUnplugTurnsOnScreen = resources.getBoolean( - com.android.internal.R.bool.config_unplugTurnsOnScreen); - - mScreenBrightnessDim = resources.getInteger( - com.android.internal.R.integer.config_screenBrightnessDim); - - // read settings for auto-brightness - mUseSoftwareAutoBrightness = resources.getBoolean( - com.android.internal.R.bool.config_automatic_brightness_available); - if (mUseSoftwareAutoBrightness) { - mAutoBrightnessLevels = resources.getIntArray( - com.android.internal.R.array.config_autoBrightnessLevels); - mLcdBacklightValues = resources.getIntArray( - com.android.internal.R.array.config_autoBrightnessLcdBacklightValues); - mButtonBacklightValues = resources.getIntArray( - com.android.internal.R.array.config_autoBrightnessButtonBacklightValues); - mKeyboardBacklightValues = resources.getIntArray( - com.android.internal.R.array.config_autoBrightnessKeyboardBacklightValues); - mLightSensorWarmupTime = resources.getInteger( - com.android.internal.R.integer.config_lightSensorWarmupTime); - } - - ContentResolver resolver = mContext.getContentResolver(); - Cursor settingsCursor = resolver.query(Settings.System.CONTENT_URI, null, - "(" + Settings.System.NAME + "=?) or (" - + Settings.System.NAME + "=?) or (" - + Settings.System.NAME + "=?) or (" - + Settings.System.NAME + "=?) or (" - + Settings.System.NAME + "=?) or (" - + Settings.System.NAME + "=?) or (" - + Settings.System.NAME + "=?) or (" - + Settings.System.NAME + "=?)", - new String[]{STAY_ON_WHILE_PLUGGED_IN, SCREEN_OFF_TIMEOUT, DIM_SCREEN, SCREEN_BRIGHTNESS, - SCREEN_BRIGHTNESS_MODE, /*SCREEN_AUTO_BRIGHTNESS_ADJ,*/ - WINDOW_ANIMATION_SCALE, TRANSITION_ANIMATION_SCALE}, - 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); - filter = new IntentFilter(); - filter.addAction(Intent.ACTION_BOOT_COMPLETED); - mContext.registerReceiver(new BootCompletedReceiver(), filter); - filter = new IntentFilter(); - filter.addAction(Intent.ACTION_DOCK_EVENT); - mContext.registerReceiver(new DockReceiver(), filter); - - // Listen for secure settings changes - mContext.getContentResolver().registerContentObserver( - Settings.Secure.CONTENT_URI, true, - new ContentObserver(new Handler()) { - public void onChange(boolean selfChange) { - updateSettingsValues(); - } - }); - updateSettingsValues(); - - synchronized (mHandlerThread) { - mInitComplete = true; - mHandlerThread.notifyAll(); - } - } - - /** - * Low-level function turn the device off immediately, without trying - * to be clean. Most people should use - * {@link com.android.server.pm.internal.app.ShutdownThread} for a clean shutdown. - */ - public static void lowLevelShutdown() { - nativeShutdown(); - } - - /** - * Low-level function to reboot the device. - * - * @param reason code to pass to the kernel (e.g. "recovery"), or null. - * @throws IOException if reboot fails for some reason (eg, lack of - * permission) - */ - public static void lowLevelReboot(String reason) throws IOException { - nativeReboot(reason); - } - - private class WakeLock implements IBinder.DeathRecipient - { - WakeLock(int f, IBinder b, String t, int u, int p) { - super(); - flags = f; - binder = b; - tag = t; - uid = u == MY_UID ? Process.SYSTEM_UID : u; - pid = p; - 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, 0, true); - } - } - final int flags; - final IBinder binder; - final String tag; - final int uid; - final int pid; - final int monitorType; - WorkSource ws; - boolean activated = true; - int minState; - } - - private void updateWakeLockLocked() { - final int stayOnConditions = getStayOnConditionsLocked(); - if (stayOnConditions != 0 && mBatteryService.isPowered(stayOnConditions)) { - // 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 - || n == PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK; - } - - void enforceWakeSourcePermission(int uid, int pid) { - if (uid == Process.myUid()) { - return; - } - mContext.enforcePermission(android.Manifest.permission.UPDATE_DEVICE_STATS, - pid, uid, null); - } - - public void acquireWakeLock(int flags, IBinder lock, String tag, WorkSource ws) { - int uid = Binder.getCallingUid(); - int pid = Binder.getCallingPid(); - if (uid != Process.myUid()) { - mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WAKE_LOCK, null); - } - if (ws != null) { - enforceWakeSourcePermission(uid, pid); - } - long ident = Binder.clearCallingIdentity(); - try { - synchronized (mLocks) { - acquireWakeLockLocked(flags, lock, uid, pid, tag, ws); - } - } finally { - Binder.restoreCallingIdentity(ident); - } - } - - void noteStartWakeLocked(WakeLock wl, WorkSource ws) { - if (wl.monitorType >= 0) { - long origId = Binder.clearCallingIdentity(); - try { - if (ws != null) { - mBatteryStats.noteStartWakelockFromSource(ws, wl.pid, wl.tag, - wl.monitorType); - } else { - mBatteryStats.noteStartWakelock(wl.uid, wl.pid, wl.tag, wl.monitorType); - } - } catch (RemoteException e) { - // Ignore - } finally { - Binder.restoreCallingIdentity(origId); - } - } - } - - void noteStopWakeLocked(WakeLock wl, WorkSource ws) { - if (wl.monitorType >= 0) { - long origId = Binder.clearCallingIdentity(); - try { - if (ws != null) { - mBatteryStats.noteStopWakelockFromSource(ws, wl.pid, wl.tag, - wl.monitorType); - } else { - mBatteryStats.noteStopWakelock(wl.uid, wl.pid, wl.tag, wl.monitorType); - } - } catch (RemoteException e) { - // Ignore - } finally { - Binder.restoreCallingIdentity(origId); - } - } - } - - public void acquireWakeLockLocked(int flags, IBinder lock, int uid, int pid, String tag, - WorkSource ws) { - if (mSpew) { - Slog.d(TAG, "acquireWakeLock flags=0x" + Integer.toHexString(flags) + " tag=" + tag); - } - - if (ws != null && ws.size() == 0) { - ws = null; - } - - int index = mLocks.getIndex(lock); - WakeLock wl; - boolean newlock; - boolean diffsource; - WorkSource oldsource; - if (index < 0) { - wl = new WakeLock(flags, lock, tag, uid, pid); - switch (wl.flags & LOCK_MASK) - { - case PowerManager.FULL_WAKE_LOCK: - if (mUseSoftwareAutoBrightness) { - wl.minState = SCREEN_BRIGHT; - } else { - 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: - case PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK: - break; - default: - // just log and bail. we're in the server, so don't - // throw an exception. - Slog.e(TAG, "bad wakelock type for lock '" + tag + "' " - + " flags=" + flags); - return; - } - mLocks.addLock(wl); - if (ws != null) { - wl.ws = new WorkSource(ws); - } - newlock = true; - diffsource = false; - oldsource = null; - } else { - wl = mLocks.get(index); - newlock = false; - oldsource = wl.ws; - if (oldsource != null) { - if (ws == null) { - wl.ws = null; - diffsource = true; - } else { - diffsource = oldsource.diff(ws); - } - } else if (ws != null) { - diffsource = true; - } else { - diffsource = false; - } - if (diffsource) { - wl.ws = new WorkSource(ws); - } - } - 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 ((flags & LOCK_MASK) == PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK) { - mProximityWakeLockCount++; - if (mProximityWakeLockCount == 1) { - enableProximityLockLocked(); - } - } else { - if ((wl.flags & PowerManager.ACQUIRE_CAUSES_WAKEUP) != 0) { - int oldWakeLockState = mWakeLockState; - mWakeLockState = mLocks.reactivateScreenLocksLocked(); - - // Disable proximity sensor if if user presses power key while we are in the - // "waiting for proximity sensor to go negative" state. - if ((mWakeLockState & SCREEN_ON_BIT) != 0 - && mProximitySensorActive && mProximityWakeLockCount == 0) { - mProximitySensorActive = false; - } - - if (mSpew) { - Slog.d(TAG, "wakeup here mUserState=0x" + Integer.toHexString(mUserState) - + " mWakeLockState=0x" - + Integer.toHexString(mWakeLockState) - + " previous wakeLockState=0x" - + Integer.toHexString(oldWakeLockState)); - } - } else { - if (mSpew) { - Slog.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(EventLogTags.POWER_PARTIAL_WAKE_STATE, 1, tag); - } - } - nativeAcquireWakeLock(PARTIAL_WAKE_LOCK_ID, PARTIAL_NAME); - } - - if (diffsource) { - // If the lock sources have changed, need to first release the - // old ones. - noteStopWakeLocked(wl, oldsource); - } - if (newlock || diffsource) { - noteStartWakeLocked(wl, ws); - } - } - - public void updateWakeLockWorkSource(IBinder lock, WorkSource ws) { - int uid = Binder.getCallingUid(); - int pid = Binder.getCallingPid(); - if (ws != null && ws.size() == 0) { - ws = null; - } - if (ws != null) { - enforceWakeSourcePermission(uid, pid); - } - synchronized (mLocks) { - int index = mLocks.getIndex(lock); - if (index < 0) { - throw new IllegalArgumentException("Wake lock not active"); - } - WakeLock wl = mLocks.get(index); - WorkSource oldsource = wl.ws; - wl.ws = ws != null ? new WorkSource(ws) : null; - noteStopWakeLocked(wl, oldsource); - noteStartWakeLocked(wl, ws); - } - } - - public void releaseWakeLock(IBinder lock, int flags) { - int uid = Binder.getCallingUid(); - if (uid != Process.myUid()) { - mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WAKE_LOCK, null); - } - - synchronized (mLocks) { - releaseWakeLockLocked(lock, flags, false); - } - } - - private void releaseWakeLockLocked(IBinder lock, int flags, boolean death) { - WakeLock wl = mLocks.removeLock(lock); - if (wl == null) { - return; - } - - if (mSpew) { - Slog.d(TAG, "releaseWakeLock flags=0x" - + Integer.toHexString(wl.flags) + " tag=" + wl.tag); - } - - if (isScreenLock(wl.flags)) { - if ((wl.flags & LOCK_MASK) == PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK) { - mProximityWakeLockCount--; - if (mProximityWakeLockCount == 0) { - if (mProximitySensorActive && - ((flags & PowerManager.WAIT_FOR_PROXIMITY_NEGATIVE) != 0)) { - // wait for proximity sensor to go negative before disabling sensor - if (mDebugProximitySensor) { - Slog.d(TAG, "waiting for proximity sensor to go negative"); - } - } else { - disableProximityLockLocked(); - } - } - } else { - mWakeLockState = mLocks.gatherState(); - // goes in the middle to reduce flicker - if ((wl.flags & PowerManager.ON_AFTER_RELEASE) != 0) { - userActivity(SystemClock.uptimeMillis(), -1, false, OTHER_EVENT, false, true); - } - setPowerState(mWakeLockState | mUserState); - } - } - else if ((wl.flags & LOCK_MASK) == PowerManager.PARTIAL_WAKE_LOCK) { - mPartialCount--; - if (mPartialCount == 0) { - if (LOG_PARTIAL_WL) EventLog.writeEvent(EventLogTags.POWER_PARTIAL_WAKE_STATE, 0, wl.tag); - nativeReleaseWakeLock(PARTIAL_NAME); - } - } - // Unlink the lock from the binder. - wl.binder.unlinkToDeath(wl, 0); - - noteStopWakeLocked(wl, wl.ws); - } - - 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) { - Slog.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 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 "; - case PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK: - return "PROXIMITY_SCREEN_OFF_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 & BUTTON_BRIGHT_BIT) != 0) - ? "BUTTON_BRIGHT_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(); - - synchronized (mLocks) { - 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 - + " mPreparingForScreenOn=" + mPreparingForScreenOn - + " mSkippedScreenOn=" + mSkippedScreenOn); - pw.println(" mScreenOffReason=" + mScreenOffReason - + " 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 - + " mButtonBrightnessOverride=" + mButtonBrightnessOverride); - pw.println(" mScreenOffTimeoutSetting=" + mScreenOffTimeoutSetting - + " mMaximumScreenOffTimeout=" + mMaximumScreenOffTimeout); - pw.println(" mLastScreenOnTime=" + mLastScreenOnTime); - pw.println(" mBroadcastWakeLock=" + mBroadcastWakeLock); - pw.println(" mStayOnWhilePluggedInScreenDimLock=" + mStayOnWhilePluggedInScreenDimLock); - pw.println(" mStayOnWhilePluggedInPartialLock=" + mStayOnWhilePluggedInPartialLock); - pw.println(" mPreventScreenOnPartialLock=" + mPreventScreenOnPartialLock); - pw.println(" mProximityPartialLock=" + mProximityPartialLock); - pw.println(" mProximityWakeLockCount=" + mProximityWakeLockCount); - pw.println(" mProximitySensorEnabled=" + mProximitySensorEnabled); - pw.println(" mProximitySensorActive=" + mProximitySensorActive); - pw.println(" mProximityPendingValue=" + mProximityPendingValue); - pw.println(" mLastProximityEventTime=" + mLastProximityEventTime); - pw.println(" mLightSensorEnabled=" + mLightSensorEnabled - + " mLightSensorAdjustSetting=" + mLightSensorAdjustSetting); - pw.println(" mLightSensorValue=" + mLightSensorValue - + " mLightSensorPendingValue=" + mLightSensorPendingValue); - pw.println(" mHighestLightSensorValue=" + mHighestLightSensorValue - + " mWaitingForFirstLightSensor=" + mWaitingForFirstLightSensor); - pw.println(" mLightSensorPendingDecrease=" + mLightSensorPendingDecrease - + " mLightSensorPendingIncrease=" + mLightSensorPendingIncrease); - pw.println(" mLightSensorScreenBrightness=" + mLightSensorScreenBrightness - + " mLightSensorButtonBrightness=" + mLightSensorButtonBrightness - + " mLightSensorKeyboardBrightness=" + mLightSensorKeyboardBrightness); - pw.println(" mUseSoftwareAutoBrightness=" + mUseSoftwareAutoBrightness); - pw.println(" mAutoBrightessEnabled=" + mAutoBrightessEnabled); - mScreenBrightnessAnimator.dump(pw, "mScreenBrightnessAnimator: "); - - 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 + ", uid=" + wl.uid - + ", pid=" + wl.pid + ")"); - } - - pw.println(); - pw.println("mPokeLocks.size=" + mPokeLocks.size() + ":"); - for (PokeLock p: mPokeLocks.values()) { - pw.println(" poke lock '" + p.tag + "':" - + ((p.pokey & POKE_LOCK_IGNORE_TOUCH_EVENTS) != 0 - ? " POKE_LOCK_IGNORE_TOUCH_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) { - setTimeoutLocked(now, -1, nextState); - } - - // If they gave a timeoutOverride it is the number of seconds - // to screen-off. Figure out where in the countdown cycle we - // should jump to. - private void setTimeoutLocked(long now, final long originalTimeoutOverride, int nextState) { - long timeoutOverride = originalTimeoutOverride; - if (mBootCompleted) { - synchronized (mLocks) { - long when = 0; - if (timeoutOverride <= 0) { - switch (nextState) - { - case SCREEN_BRIGHT: - when = now + mKeylightDelay; - break; - case SCREEN_DIM: - if (mDimDelay >= 0) { - when = now + mDimDelay; - break; - } else { - Slog.w(TAG, "mDimDelay=" + mDimDelay + " while trying to dim"); - } - case SCREEN_OFF: - synchronized (mLocks) { - when = now + mScreenOffDelay; - } - break; - default: - when = now; - break; - } - } else { - override: { - if (timeoutOverride <= mScreenOffDelay) { - when = now + timeoutOverride; - nextState = SCREEN_OFF; - break override; - } - timeoutOverride -= mScreenOffDelay; - - if (mDimDelay >= 0) { - if (timeoutOverride <= mDimDelay) { - when = now + timeoutOverride; - nextState = SCREEN_DIM; - break override; - } - timeoutOverride -= mDimDelay; - } - - when = now + timeoutOverride; - nextState = SCREEN_BRIGHT; - } - } - if (mSpew) { - Slog.d(TAG, "setTimeoutLocked now=" + now - + " timeoutOverride=" + timeoutOverride - + " nextState=" + nextState + " when=" + when); - } - - mHandler.removeCallbacks(mTimeoutTask); - mTimeoutTask.nextState = nextState; - mTimeoutTask.remainingTimeoutOverride = timeoutOverride > 0 - ? (originalTimeoutOverride - timeoutOverride) - : -1; - 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 - long remainingTimeoutOverride; - public void run() - { - synchronized (mLocks) { - if (mSpew) { - Slog.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, remainingTimeoutOverride, SCREEN_DIM); - break; - } - case SCREEN_DIM: - setTimeoutLocked(now, remainingTimeoutOverride, SCREEN_OFF); - break; - } - } - } - } - - private void sendNotificationLocked(boolean on, int why) { - if (!mInitialized) { - // No notifications sent until first initialization is done. - // This is so that when we are moving from our initial state - // which looks like the screen was off to it being on, we do not - // go through the process of waiting for the higher-level user - // space to be ready before turning up the display brightness. - // (And also do not send needless broadcasts about the screen.) - return; - } - - if (DEBUG_SCREEN_ON) { - RuntimeException here = new RuntimeException("here"); - here.fillInStackTrace(); - Slog.i(TAG, "sendNotificationLocked: " + on, here); - } - - 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) { - // While we're collapsing them, if it's going off, and the new reason - // is more significant than the first, then use the new one. - if (!on && mBroadcastWhy[0] > why) { - mBroadcastWhy[0] = why; - } - mBroadcastQueue[0] = on ? 1 : 0; - mBroadcastQueue[1] = -1; - mBroadcastQueue[2] = -1; - EventLog.writeEvent(EventLogTags.POWER_SCREEN_BROADCAST_STOP, 1, mBroadcastWakeLock.mCount); - mBroadcastWakeLock.release(); - EventLog.writeEvent(EventLogTags.POWER_SCREEN_BROADCAST_STOP, 1, mBroadcastWakeLock.mCount); - mBroadcastWakeLock.release(); - 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(EventLogTags.POWER_SCREEN_BROADCAST_STOP, 1, mBroadcastWakeLock.mCount); - mBroadcastWakeLock.release(); - } - - // The broadcast queue has changed; make sure the screen is on if it - // is now possible for it to be. - if (mSkippedScreenOn) { - updateLightsLocked(mPowerState, SCREEN_ON_BIT); - } - - // 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(EventLogTags.POWER_SCREEN_BROADCAST_SEND, mBroadcastWakeLock.mCount); - mHandler.post(mNotificationTask); - } - } - - private WindowManagerPolicy.ScreenOnListener mScreenOnListener = - new WindowManagerPolicy.ScreenOnListener() { - public void onScreenOn() { - synchronized (mLocks) { - if (mPreparingForScreenOn) { - mPreparingForScreenOn = false; - updateLightsLocked(mPowerState, SCREEN_ON_BIT); - EventLog.writeEvent(EventLogTags.POWER_SCREEN_BROADCAST_STOP, - 4, mBroadcastWakeLock.mCount); - mBroadcastWakeLock.release(); - } - } - } - }; - - 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 && !mPreparingForScreenOn) { - mPreparingForScreenOn = true; - mBroadcastWakeLock.acquire(); - EventLog.writeEvent(EventLogTags.POWER_SCREEN_BROADCAST_SEND, - mBroadcastWakeLock.mCount); - } - } - if (value == 1) { - mScreenOnStart = SystemClock.uptimeMillis(); - - policy.screenTurningOn(mScreenOnListener); - try { - ActivityManagerNative.getDefault().wakingUp(); - } catch (RemoteException e) { - // ignore it - } - - if (mSpew) { - Slog.d(TAG, "mBroadcastWakeLock=" + mBroadcastWakeLock); - } - if (mContext != null && ActivityManagerNative.isSystemReady()) { - mContext.sendOrderedBroadcast(mScreenOnIntent, null, - mScreenOnBroadcastDone, mHandler, 0, null, null); - } else { - synchronized (mLocks) { - EventLog.writeEvent(EventLogTags.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(EventLogTags.POWER_SCREEN_BROADCAST_STOP, 3, - mBroadcastWakeLock.mCount); - updateLightsLocked(mPowerState, SCREEN_ON_BIT); - 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(EventLogTags.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(EventLogTags.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 setScreenStateLocked(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 (!mProximitySensorActive && (mPowerState & SCREEN_ON_BIT) != 0) { - if (mSpew) { - Slog.d(TAG, - "preventScreenOn: turning on after a prior preventScreenOn(true)!"); - } - int err = setScreenStateLocked(true); - if (err != 0) { - Slog.w(TAG, "preventScreenOn: error from setScreenStateLocked(): " + 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); - - if (mSpew) Slog.d(TAG, "setScreenBrightnessOverride " + brightness); - synchronized (mLocks) { - if (mScreenBrightnessOverride != brightness) { - mScreenBrightnessOverride = brightness; - if (isScreenOn()) { - updateLightsLocked(mPowerState, SCREEN_ON_BIT); - } - } - } - } - - public void setButtonBrightnessOverride(int brightness) { - mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null); - - if (mSpew) Slog.d(TAG, "setButtonBrightnessOverride " + brightness); - synchronized (mLocks) { - if (mButtonBrightnessOverride != brightness) { - mButtonBrightnessOverride = brightness; - if (isScreenOn()) { - updateLightsLocked(mPowerState, BUTTON_BRIGHT_BIT | KEYBOARD_BRIGHT_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) { - Slog.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. - Slog.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 int setScreenStateLocked(boolean on) { - if (DEBUG_SCREEN_ON) { - RuntimeException e = new RuntimeException("here"); - e.fillInStackTrace(); - Slog.i(TAG, "Set screen state: " + on, e); - } - if (on) { - if (mInitialized && ((mPowerState & SCREEN_ON_BIT) == 0 || mSkippedScreenOn)) { - // If we are turning the screen state on, but the screen - // light is currently off, then make sure that we set the - // light at this point to 0. This is the case where we are - // turning on the screen and waiting for the UI to be drawn - // before showing it to the user. We want the light off - // until it is ready to be shown to the user, not it using - // whatever the last value it had. - // Skip this if the screen is being turned on for the first time - // after boot (mInitialized is false). - if (DEBUG_SCREEN_ON) { - Slog.i(TAG, "Forcing brightness 0: mPowerState=0x" - + Integer.toHexString(mPowerState) - + " mSkippedScreenOn=" + mSkippedScreenOn); - } - mScreenBrightnessAnimator.animateTo(PowerManager.BRIGHTNESS_OFF, SCREEN_BRIGHT_BIT, 0); - } - } - int err = nativeSetScreenState(on); - if (err == 0) { - mLastScreenOnTime = (on ? SystemClock.elapsedRealtime() : 0); - if (mUseSoftwareAutoBrightness) { - enableLightSensorLocked(on); - if (on) { - // If AutoBrightness is enabled, set the brightness immediately after the - // next sensor value is received. - mWaitingForFirstLightSensor = mAutoBrightessEnabled; - } else { - // make sure button and key backlights are off too - mButtonLight.turnOff(); - mKeyboardLight.turnOff(); - } - } - } - return err; - } - - private void setPowerState(int state) - { - setPowerState(state, false, WindowManagerPolicy.OFF_BECAUSE_OF_TIMEOUT); - } - - private void setPowerState(int newState, boolean noChangeLights, int reason) - { - synchronized (mLocks) { - int err; - - if (mSpew) { - Slog.d(TAG, "setPowerState: mPowerState=0x" + Integer.toHexString(mPowerState) - + " newState=0x" + Integer.toHexString(newState) - + " noChangeLights=" + noChangeLights - + " reason=" + reason); - } - - if (noChangeLights) { - newState = (newState & ~LIGHTS_MASK) | (mPowerState & LIGHTS_MASK); - } - if (mProximitySensorActive) { - // don't turn on the screen when the proximity sensor lock is held - newState = (newState & ~SCREEN_BRIGHT); - } - - if (batteryIsLow()) { - newState |= BATTERY_LOW_BIT; - } else { - newState &= ~BATTERY_LOW_BIT; - } - if (newState == mPowerState && mInitialized) { - return; - } - - if (!mBootCompleted && !mUseSoftwareAutoBrightness) { - newState |= ALL_BRIGHT; - } - - boolean oldScreenOn = (mPowerState & SCREEN_ON_BIT) != 0; - boolean newScreenOn = (newState & SCREEN_ON_BIT) != 0; - - if (mSpew) { - Slog.d(TAG, "setPowerState: mPowerState=" + mPowerState - + " newState=" + newState + " noChangeLights=" + noChangeLights); - Slog.d(TAG, " oldKeyboardBright=" + ((mPowerState & KEYBOARD_BRIGHT_BIT) != 0) - + " newKeyboardBright=" + ((newState & KEYBOARD_BRIGHT_BIT) != 0)); - Slog.d(TAG, " oldScreenBright=" + ((mPowerState & SCREEN_BRIGHT_BIT) != 0) - + " newScreenBright=" + ((newState & SCREEN_BRIGHT_BIT) != 0)); - Slog.d(TAG, " oldButtonBright=" + ((mPowerState & BUTTON_BRIGHT_BIT) != 0) - + " newButtonBright=" + ((newState & BUTTON_BRIGHT_BIT) != 0)); - Slog.d(TAG, " oldScreenOn=" + oldScreenOn - + " newScreenOn=" + newScreenOn); - Slog.d(TAG, " oldBatteryLow=" + ((mPowerState & BATTERY_LOW_BIT) != 0) - + " newBatteryLow=" + ((newState & BATTERY_LOW_BIT) != 0)); - } - - final boolean stateChanged = mPowerState != newState; - - if (stateChanged && reason == WindowManagerPolicy.OFF_BECAUSE_OF_TIMEOUT) { - if (mPolicy != null && mPolicy.isScreenSaverEnabled()) { - if (mSpew) { - Slog.d(TAG, "setPowerState: running screen saver instead of turning off screen"); - } - if (mPolicy.startScreenSaver()) { - // was successful - return; - } - } - } - - - 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) { - Slog.d(TAG, "- turning screen on... mPreventScreenOn = " - + mPreventScreenOn); - } - - if (mPreventScreenOn) { - if (mSpew) { - Slog.d(TAG, "- PREVENTING screen from really turning on!"); - } - reallyTurnScreenOn = false; - } - if (reallyTurnScreenOn) { - err = setScreenStateLocked(true); - long identity = Binder.clearCallingIdentity(); - try { - mBatteryStats.noteScreenBrightness(getPreferredBrightness()); - mBatteryStats.noteScreenOn(); - } catch (RemoteException e) { - Slog.w(TAG, "RemoteException calling noteScreenOn on BatteryStatsService", e); - } finally { - Binder.restoreCallingIdentity(identity); - } - } else { - setScreenStateLocked(false); - // But continue as if we really did turn the screen on... - err = 0; - } - - mLastTouchDown = 0; - mTotalTouchDownTime = 0; - mTouchCycles = 0; - EventLog.writeEvent(EventLogTags.POWER_SCREEN_STATE, 1, reason, - mTotalTouchDownTime, mTouchCycles); - if (err == 0) { - sendNotificationLocked(true, -1); - // Update the lights *after* taking care of turning the - // screen on, so we do this after our notifications are - // enqueued and thus will delay turning on the screen light - // until the windows are correctly displayed. - if (stateChanged) { - updateLightsLocked(newState, 0); - } - mPowerState |= SCREEN_ON_BIT; - } - - } else { - // Update the lights *before* taking care of turning the - // screen off, so we can initiate any animations that are desired. - mScreenOffReason = reason; - if (stateChanged) { - updateLightsLocked(newState, 0); - } - - // cancel light sensor task - mHandler.removeCallbacks(mAutoBrightnessTask); - mLightSensorPendingDecrease = false; - mLightSensorPendingIncrease = false; - mScreenOffTime = SystemClock.elapsedRealtime(); - long identity = Binder.clearCallingIdentity(); - try { - mBatteryStats.noteScreenOff(); - } catch (RemoteException e) { - Slog.w(TAG, "RemoteException calling noteScreenOff on BatteryStatsService", e); - } finally { - Binder.restoreCallingIdentity(identity); - } - mPowerState &= ~SCREEN_ON_BIT; - if (!mScreenBrightnessAnimator.isAnimating()) { - err = screenOffFinishedAnimatingLocked(reason); - } else { - err = 0; - mLastTouchDown = 0; - } - } - } else if (stateChanged) { - // Screen on/off didn't change, but lights may have. - updateLightsLocked(newState, 0); - } - - mPowerState = (mPowerState & ~LIGHTS_MASK) | (newState & LIGHTS_MASK); - - updateNativePowerStateLocked(); - } - } - - private void updateNativePowerStateLocked() { - if (!mHeadless) { - nativeSetPowerState( - (mPowerState & SCREEN_ON_BIT) != 0, - (mPowerState & SCREEN_BRIGHT) == SCREEN_BRIGHT); - } - } - - private int screenOffFinishedAnimatingLocked(int reason) { - // 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(EventLogTags.POWER_SCREEN_STATE, 0, reason, mTotalTouchDownTime, - mTouchCycles); - mLastTouchDown = 0; - int err = setScreenStateLocked(false); - if (err == 0) { - mScreenOffReason = reason; - sendNotificationLocked(false, reason); - } - return err; - } - - private boolean batteryIsLow() { - return (!mIsPowered && - mBatteryService.getBatteryLevel() <= LOW_BATTERY_THRESHOLD); - } - - private boolean shouldDeferScreenOnLocked() { - if (mPreparingForScreenOn) { - // Currently waiting for confirmation from the policy that it - // is okay to turn on the screen. Don't allow the screen to go - // on until that is done. - if (DEBUG_SCREEN_ON) Slog.i(TAG, - "updateLights: delaying screen on due to mPreparingForScreenOn"); - return true; - } else { - // If there is a screen-on command in the notification queue, we - // can't turn the screen on until it has been processed (and we - // have set mPreparingForScreenOn) or it has been dropped. - for (int i=0; i<mBroadcastQueue.length; i++) { - if (mBroadcastQueue[i] == 1) { - if (DEBUG_SCREEN_ON) Slog.i(TAG, - "updateLights: delaying screen on due to notification queue"); - return true; - } - } - } - return false; - } - - private void updateLightsLocked(int newState, int forceState) { - final int oldState = mPowerState; - - // If the screen is not currently on, we will want to delay actually - // turning the lights on if we are still getting the UI put up. - if ((oldState & SCREEN_ON_BIT) == 0 || mSkippedScreenOn) { - // Don't turn screen on until we know we are really ready to. - // This is to avoid letting the screen go on before things like the - // lock screen have been displayed. - if ((mSkippedScreenOn = shouldDeferScreenOnLocked())) { - newState &= ~(SCREEN_ON_BIT|SCREEN_BRIGHT_BIT); - } - } - - if ((newState & SCREEN_ON_BIT) != 0) { - // Only turn on the buttons or keyboard if the screen is also on. - // We should never see the buttons on but not the screen. - newState = applyButtonState(newState); - newState = applyKeyboardState(newState); - } - 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(); - - if ((difference & KEYBOARD_BRIGHT_BIT) != 0) { - if ((newState & KEYBOARD_BRIGHT_BIT) == 0) { - offMask |= KEYBOARD_BRIGHT_BIT; - } else { - onMask |= KEYBOARD_BRIGHT_BIT; - } - } - - if ((difference & BUTTON_BRIGHT_BIT) != 0) { - if ((newState & BUTTON_BRIGHT_BIT) == 0) { - offMask |= BUTTON_BRIGHT_BIT; - } else { - onMask |= BUTTON_BRIGHT_BIT; - } - } - - if ((difference & (SCREEN_ON_BIT | SCREEN_BRIGHT_BIT)) != 0) { - 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 = mScreenBrightnessDim; - break; - case 0: - nominalCurrentValue = PowerManager.BRIGHTNESS_OFF; - break; - case SCREEN_BRIGHT_BIT: - default: - // not possible - nominalCurrentValue = (int)mScreenBrightnessAnimator.getCurrentBrightness(); - 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)mScreenBrightnessDim)/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 = PowerManager.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); - } - final int stayOnConditions = getStayOnConditionsLocked(); - if (stayOnConditions != 0 && mBatteryService.isPowered(stayOnConditions)) { - // 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 = mScreenBrightnessDim; - } - } - if (mWaitingForFirstLightSensor && (newState & SCREEN_ON_BIT) != 0) { - steps = IMMEDIATE_ANIM_STEPS; - } - - long identity = Binder.clearCallingIdentity(); - try { - mBatteryStats.noteScreenBrightness(brightness); - } catch (RemoteException e) { - // Nothing interesting to do. - } finally { - Binder.restoreCallingIdentity(identity); - } - if (!mSkippedScreenOn) { - int dt = steps * NOMINAL_FRAME_TIME_MS; - mScreenBrightnessAnimator.animateTo(brightness, SCREEN_BRIGHT_BIT, dt); - if (DEBUG_SCREEN_ON) { - RuntimeException e = new RuntimeException("here"); - e.fillInStackTrace(); - Slog.i(TAG, "Setting screen brightness: " + brightness, e); - } - } - } - - if (mSpew) { - Slog.d(TAG, "offMask=0x" + Integer.toHexString(offMask) - + " dimMask=0x" + Integer.toHexString(dimMask) - + " onMask=0x" + Integer.toHexString(onMask) - + " difference=0x" + Integer.toHexString(difference) - + " realDifference=0x" + Integer.toHexString(realDifference) - + " forceState=0x" + Integer.toHexString(forceState) - ); - } - - if (offMask != 0) { - if (mSpew) Slog.i(TAG, "Setting brightess off: " + offMask); - setLightBrightness(offMask, PowerManager.BRIGHTNESS_OFF); - } - if (dimMask != 0) { - int brightness = mScreenBrightnessDim; - if ((newState & BATTERY_LOW_BIT) != 0 && - brightness > PowerManager.BRIGHTNESS_LOW_BATTERY) { - brightness = PowerManager.BRIGHTNESS_LOW_BATTERY; - } - if (mSpew) Slog.i(TAG, "Setting brightess dim " + brightness + ": " + dimMask); - setLightBrightness(dimMask, brightness); - } - if (onMask != 0) { - int brightness = getPreferredBrightness(); - if ((newState & BATTERY_LOW_BIT) != 0 && - brightness > PowerManager.BRIGHTNESS_LOW_BATTERY) { - brightness = PowerManager.BRIGHTNESS_LOW_BATTERY; - } - if (mSpew) Slog.i(TAG, "Setting brightess on " + brightness + ": " + onMask); - setLightBrightness(onMask, brightness); - } - } - - /** - * Note: by design this class does not hold mLocks while calling native methods. - * Nor should it. Ever. - */ - class ScreenBrightnessAnimator extends HandlerThread { - static final int ANIMATE_LIGHTS = 10; - static final int ANIMATE_POWER_OFF = 11; - volatile int startValue; - volatile int endValue; - volatile int startSensorValue; - volatile int endSensorValue; - volatile int currentValue; - private int currentMask; - private int duration; - private long startTimeMillis; - private final String prefix; - - public ScreenBrightnessAnimator(String name, int priority) { - super(name, priority); - prefix = name; - } - - @Override - protected void onLooperPrepared() { - mScreenBrightnessHandler = new Handler() { - public void handleMessage(Message msg) { - int brightnessMode = (mAutoBrightessEnabled && !mInitialAnimation - ? LightsService.BRIGHTNESS_MODE_SENSOR - : LightsService.BRIGHTNESS_MODE_USER); - if (msg.what == ANIMATE_LIGHTS) { - final int mask = msg.arg1; - int value = msg.arg2; - long tStart = SystemClock.uptimeMillis(); - if ((mask & SCREEN_BRIGHT_BIT) != 0) { - if (mDebugLightAnimation) Slog.v(TAG, "Set brightness: " + value); - mLcdLight.setBrightness(value, brightnessMode); - } - long elapsed = SystemClock.uptimeMillis() - tStart; - if ((mask & BUTTON_BRIGHT_BIT) != 0) { - mButtonLight.setBrightness(value); - } - if ((mask & KEYBOARD_BRIGHT_BIT) != 0) { - mKeyboardLight.setBrightness(value); - } - - if (elapsed > 100) { - Slog.e(TAG, "Excessive delay setting brightness: " + elapsed - + "ms, mask=" + mask); - } - - // Throttle brightness updates to frame refresh rate - int delay = elapsed < NOMINAL_FRAME_TIME_MS ? NOMINAL_FRAME_TIME_MS : 1; - synchronized(this) { - currentValue = value; - } - animateInternal(mask, false, delay); - } else if (msg.what == ANIMATE_POWER_OFF) { - int mode = msg.arg1; - nativeStartSurfaceFlingerAnimation(mode); - } - } - }; - synchronized (this) { - mInitComplete = true; - notifyAll(); - } - } - - private void animateInternal(int mask, boolean turningOff, int delay) { - synchronized (this) { - if (currentValue != endValue) { - final long now = SystemClock.elapsedRealtime(); - final int elapsed = (int) (now - startTimeMillis); - int newValue; - if (elapsed < duration) { - int delta = endValue - startValue; - newValue = startValue + delta * elapsed / duration; - newValue = Math.max(PowerManager.BRIGHTNESS_OFF, newValue); - newValue = Math.min(PowerManager.BRIGHTNESS_ON, newValue); - // Optimization to delay next step until a change will occur. - if (delay > 0 && newValue == currentValue) { - final int timePerStep = duration / Math.abs(delta); - delay = Math.min(duration - elapsed, timePerStep); - newValue += delta < 0 ? -1 : 1; - } - // adjust the peak sensor value until we get to the target sensor value - delta = endSensorValue - startSensorValue; - mHighestLightSensorValue = startSensorValue + delta * elapsed / duration; - } else { - newValue = endValue; - mHighestLightSensorValue = endSensorValue; - if (endValue > 0) { - mInitialAnimation = false; - } - } - - if (mDebugLightAnimation) { - Slog.v(TAG, "Animating light: " + "start:" + startValue - + ", end:" + endValue + ", elapsed:" + elapsed - + ", duration:" + duration + ", current:" + currentValue - + ", newValue:" + newValue - + ", delay:" + delay - + ", highestSensor:" + mHighestLightSensorValue); - } - - if (turningOff && !mHeadless && !mAnimateScreenLights) { - int mode = mScreenOffReason == OFF_BECAUSE_OF_PROX_SENSOR - ? 0 : mAnimationSetting; - if (mDebugLightAnimation) { - Slog.v(TAG, "Doing power-off anim, mode=" + mode); - } - mScreenBrightnessHandler.obtainMessage(ANIMATE_POWER_OFF, mode, 0) - .sendToTarget(); - } - mScreenBrightnessHandler.removeMessages( - ScreenBrightnessAnimator.ANIMATE_LIGHTS); - Message msg = mScreenBrightnessHandler - .obtainMessage(ANIMATE_LIGHTS, mask, newValue); - mScreenBrightnessHandler.sendMessageDelayed(msg, delay); - } - } - } - - public void dump(PrintWriter pw, String string) { - pw.println(string); - pw.println(" animating: " + "start:" + startValue + ", end:" + endValue - + ", duration:" + duration + ", current:" + currentValue); - pw.println(" startSensorValue:" + startSensorValue - + " endSensorValue:" + endSensorValue); - pw.println(" startTimeMillis:" + startTimeMillis - + " now:" + SystemClock.elapsedRealtime()); - pw.println(" currentMask:" + dumpPowerState(currentMask)); - } - - public void animateTo(int target, int mask, int animationDuration) { - animateTo(target, mHighestLightSensorValue, mask, animationDuration); - } - - public void animateTo(int target, int sensorTarget, int mask, int animationDuration) { - synchronized(this) { - if ((mask & SCREEN_BRIGHT_BIT) == 0) { - // We only animate keyboard and button when passed in with SCREEN_BRIGHT_BIT. - if ((mask & BUTTON_BRIGHT_BIT) != 0) { - mButtonLight.setBrightness(target); - } - if ((mask & KEYBOARD_BRIGHT_BIT) != 0) { - mKeyboardLight.setBrightness(target); - } - return; - } - if (isAnimating() && (mask ^ currentMask) != 0) { - // current animation is unrelated to new animation, jump to final values - cancelAnimation(); - } - if (mInitialAnimation) { - // jump to final value in one step the first time the brightness is set - animationDuration = 0; - if (target > 0) { - mInitialAnimation = false; - } - } - startValue = currentValue; - endValue = target; - startSensorValue = mHighestLightSensorValue; - endSensorValue = sensorTarget; - currentMask = mask; - duration = (int) (mWindowScaleAnimation * animationDuration); - startTimeMillis = SystemClock.elapsedRealtime(); - - if (mDebugLightAnimation) { - Slog.v(TAG, "animateTo(target=" + target - + ", sensor=" + sensorTarget - + ", mask=" + mask - + ", duration=" + animationDuration +")" - + ", currentValue=" + currentValue - + ", startTime=" + startTimeMillis); - } - - if (target != currentValue) { - final boolean doScreenAnim = (mask & (SCREEN_BRIGHT_BIT | SCREEN_ON_BIT)) != 0; - final boolean turningOff = endValue == PowerManager.BRIGHTNESS_OFF; - if (turningOff && doScreenAnim) { - // Cancel all pending animations since we're turning off - mScreenBrightnessHandler.removeCallbacksAndMessages(null); - screenOffFinishedAnimatingLocked(mScreenOffReason); - duration = 200; // TODO: how long should this be? - } - if (doScreenAnim) { - animateInternal(mask, turningOff, 0); - } - // TODO: Handle keyboard light animation when we have devices that support it - } - } - } - - public int getCurrentBrightness() { - synchronized (this) { - return currentValue; - } - } - - public boolean isAnimating() { - synchronized (this) { - return currentValue != endValue; - } - } - - public void cancelAnimation() { - animateTo(endValue, currentMask, 0); - } - } - - private void setLightBrightness(int mask, int value) { - mScreenBrightnessAnimator.animateTo(value, mask, 0); - } - - private int getPreferredBrightness() { - if (mScreenBrightnessOverride >= 0) { - return mScreenBrightnessOverride; - } else if (mLightSensorScreenBrightness >= 0 && mUseSoftwareAutoBrightness - && mAutoBrightessEnabled) { - return mLightSensorScreenBrightness; - } - final int brightness = mScreenBrightnessSetting; - // Don't let applications turn the screen all the way off - return Math.max(brightness, mScreenBrightnessDim); - } - - private int applyButtonState(int state) { - int brightness = -1; - if ((state & BATTERY_LOW_BIT) != 0) { - // do not override brightness if the battery is low - return state; - } - if (mButtonBrightnessOverride >= 0) { - brightness = mButtonBrightnessOverride; - } else if (mLightSensorButtonBrightness >= 0 && mUseSoftwareAutoBrightness) { - brightness = mLightSensorButtonBrightness; - } - if (brightness > 0) { - return state | BUTTON_BRIGHT_BIT; - } else if (brightness == 0) { - return state & ~BUTTON_BRIGHT_BIT; - } else { - return state; - } - } - - private int applyKeyboardState(int state) { - int brightness = -1; - if ((state & BATTERY_LOW_BIT) != 0) { - // do not override brightness if the battery is low - return state; - } - if (!mKeyboardVisible) { - brightness = 0; - } else if (mButtonBrightnessOverride >= 0) { - brightness = mButtonBrightnessOverride; - } else if (mLightSensorKeyboardBrightness >= 0 && mUseSoftwareAutoBrightness) { - brightness = mLightSensorKeyboardBrightness; - } - if (brightness > 0) { - return state | KEYBOARD_BRIGHT_BIT; - } else if (brightness == 0) { - return state & ~KEYBOARD_BRIGHT_BIT; - } else { - return state; - } - } - - public boolean isScreenOn() { - synchronized (mLocks) { - return (mPowerState & SCREEN_ON_BIT) != 0; - } - } - - boolean isScreenBright() { - synchronized (mLocks) { - return (mPowerState & SCREEN_BRIGHT) == SCREEN_BRIGHT; - } - } - - private boolean isScreenTurningOffLocked() { - return (mScreenBrightnessAnimator.isAnimating() - && mScreenBrightnessAnimator.endValue == PowerManager.BRIGHTNESS_OFF - && (mScreenBrightnessAnimator.currentMask & SCREEN_BRIGHT_BIT) != 0); - } - - private boolean shouldLog(long time) { - synchronized (mLocks) { - if (time > (mWarningSpewThrottleTime + (60*60*1000))) { - mWarningSpewThrottleTime = time; - mWarningSpewThrottleCount = 0; - return true; - } else if (mWarningSpewThrottleCount < 30) { - mWarningSpewThrottleCount++; - return true; - } else { - return false; - } - } - } - - private void forceUserActivityLocked() { - if (isScreenTurningOffLocked()) { - // cancel animation so userActivity will succeed - mScreenBrightnessAnimator.cancelAnimation(); - } - boolean savedActivityAllowed = mUserActivityAllowed; - mUserActivityAllowed = true; - userActivity(SystemClock.uptimeMillis(), false); - mUserActivityAllowed = savedActivityAllowed; - } - - public void userActivityWithForce(long time, boolean noChangeLights, boolean force) { - mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null); - userActivity(time, -1, noChangeLights, OTHER_EVENT, force, false); - } - - public void userActivity(long time, boolean noChangeLights) { - if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER) - != PackageManager.PERMISSION_GRANTED) { - if (shouldLog(time)) { - Slog.w(TAG, "Caller does not have DEVICE_POWER permission. pid=" - + Binder.getCallingPid() + " uid=" + Binder.getCallingUid()); - } - return; - } - - userActivity(time, -1, noChangeLights, OTHER_EVENT, false, false); - } - - public void userActivity(long time, boolean noChangeLights, int eventType) { - userActivity(time, -1, noChangeLights, eventType, false, false); - } - - public void userActivity(long time, boolean noChangeLights, int eventType, boolean force) { - userActivity(time, -1, noChangeLights, eventType, force, false); - } - - /* - * Reset the user activity timeout to now + timeout. This overrides whatever else is going - * on with user activity. Don't use this function. - */ - public void clearUserActivityTimeout(long now, long timeout) { - mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null); - Slog.i(TAG, "clearUserActivity for " + timeout + "ms from now"); - userActivity(now, timeout, false, OTHER_EVENT, false, false); - } - - private void userActivity(long time, long timeoutOverride, boolean noChangeLights, - int eventType, boolean force, boolean ignoreIfScreenOff) { - - if (((mPokey & POKE_LOCK_IGNORE_TOUCH_EVENTS) != 0) && (eventType == TOUCH_EVENT)) { - if (false) { - Slog.d(TAG, "dropping touch mPokey=0x" + Integer.toHexString(mPokey)); - } - return; - } - - synchronized (mLocks) { - if (mSpew) { - Slog.d(TAG, "userActivity mLastEventTime=" + mLastEventTime + " time=" + time - + " mUserActivityAllowed=" + mUserActivityAllowed - + " mUserState=0x" + Integer.toHexString(mUserState) - + " mWakeLockState=0x" + Integer.toHexString(mWakeLockState) - + " mProximitySensorActive=" + mProximitySensorActive - + " timeoutOverride=" + timeoutOverride - + " force=" + force); - } - // ignore user activity if we are in the process of turning off the screen - if (isScreenTurningOffLocked()) { - Slog.d(TAG, "ignoring user activity while turning off screen"); - return; - } - // ignore if the caller doesn't want this to allow the screen to turn - // on, and the screen is currently off. - if (ignoreIfScreenOff && (mPowerState & SCREEN_ON_BIT) == 0) { - return; - } - // Disable proximity sensor if if user presses power key while we are in the - // "waiting for proximity sensor to go negative" state. - if (mProximitySensorActive && mProximityWakeLockCount == 0) { - mProximitySensorActive = false; - } - if (mLastEventTime <= time || force) { - mLastEventTime = time; - if ((mUserActivityAllowed && !mProximitySensorActive) || force) { - // Only turn on button backlights if a button was pressed - // and auto brightness is disabled - if (eventType == BUTTON_EVENT && !mUseSoftwareAutoBrightness) { - 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, - WindowManagerPolicy.OFF_BECAUSE_OF_USER); - setTimeoutLocked(time, timeoutOverride, SCREEN_BRIGHT); - } - } - } - - if (mPolicy != null) { - mPolicy.userActivity(); - } - } - - private int getAutoBrightnessValue(int sensorValue, int[] values) { - try { - int i; - for (i = 0; i < mAutoBrightnessLevels.length; i++) { - if (sensorValue < mAutoBrightnessLevels[i]) { - break; - } - } - // This is the range of brightness values that we can use. - final int minval = values[0]; - final int maxval = values[mAutoBrightnessLevels.length]; - // This is the range we will be scaling. We put some padding - // at the low and high end to give the adjustment a little better - // impact on the actual observed value. - final int range = (maxval-minval) + LIGHT_SENSOR_RANGE_EXPANSION; - // This is the desired brightness value from 0.0 to 1.0. - float valf = ((values[i]-minval+(LIGHT_SENSOR_RANGE_EXPANSION/2))/(float)range); - // Apply a scaling to the value based on the adjustment. - if (mLightSensorAdjustSetting > 0 && mLightSensorAdjustSetting <= 1) { - float adj = (float)Math.sqrt(1.0f-mLightSensorAdjustSetting); - if (adj <= .00001) { - valf = 1; - } else { - valf /= adj; - } - } else if (mLightSensorAdjustSetting < 0 && mLightSensorAdjustSetting >= -1) { - float adj = (float)Math.sqrt(1.0f+mLightSensorAdjustSetting); - valf *= adj; - } - // Apply an additional offset to the value based on the adjustment. - valf += mLightSensorAdjustSetting/LIGHT_SENSOR_OFFSET_SCALE; - // Convert the 0.0-1.0 value back to a brightness integer. - int val = (int)((valf*range)+minval) - (LIGHT_SENSOR_RANGE_EXPANSION/2); - if (val < minval) val = minval; - else if (val > maxval) val = maxval; - return val; - } catch (Exception e) { - // guard against null pointer or index out of bounds errors - Slog.e(TAG, "Values array must be non-empty and must be one element longer than " - + "the auto-brightness levels array. Check config.xml.", e); - return 255; - } - } - - private Runnable mProximityTask = new Runnable() { - public void run() { - synchronized (mLocks) { - if (mProximityPendingValue != -1) { - proximityChangedLocked(mProximityPendingValue == 1); - mProximityPendingValue = -1; - } - if (mProximityPartialLock.isHeld()) { - mProximityPartialLock.release(); - } - } - } - }; - - private Runnable mAutoBrightnessTask = new Runnable() { - public void run() { - synchronized (mLocks) { - if (mLightSensorPendingDecrease || mLightSensorPendingIncrease) { - int value = (int)mLightSensorPendingValue; - mLightSensorPendingDecrease = false; - mLightSensorPendingIncrease = false; - lightSensorChangedLocked(value, false); - } - } - } - }; - - /** used to prevent lightsensor changes while turning on. */ - private boolean mInitialAnimation = true; - - private void dockStateChanged(int state) { - synchronized (mLocks) { - mIsDocked = (state != Intent.EXTRA_DOCK_STATE_UNDOCKED); - if (mIsDocked) { - // allow brightness to decrease when docked - mHighestLightSensorValue = -1; - } - if ((mPowerState & SCREEN_ON_BIT) != 0) { - // force lights recalculation - int value = (int)mLightSensorValue; - mLightSensorValue = -1; - lightSensorChangedLocked(value, false); - } - } - } - - private void lightSensorChangedLocked(int value, boolean immediate) { - if (mDebugLightSensor) { - Slog.d(TAG, "lightSensorChangedLocked value=" + value + " immediate=" + immediate); - } - - // Don't do anything if the screen is off. - if ((mPowerState & SCREEN_ON_BIT) == 0) { - if (mDebugLightSensor) { - Slog.d(TAG, "dropping lightSensorChangedLocked because screen is off"); - } - return; - } - - if (mLightSensorValue != value) { - mLightSensorValue = value; - if ((mPowerState & BATTERY_LOW_BIT) == 0) { - // use maximum light sensor value seen since screen went on for LCD to avoid flicker - // we only do this if we are undocked, since lighting should be stable when - // stationary in a dock. - int lcdValue = getAutoBrightnessValue(value, mLcdBacklightValues); - int buttonValue = getAutoBrightnessValue(value, mButtonBacklightValues); - int keyboardValue; - if (mKeyboardVisible) { - keyboardValue = getAutoBrightnessValue(value, mKeyboardBacklightValues); - } else { - keyboardValue = 0; - } - mLightSensorScreenBrightness = lcdValue; - mLightSensorButtonBrightness = buttonValue; - mLightSensorKeyboardBrightness = keyboardValue; - - if (mDebugLightSensor) { - Slog.d(TAG, "lcdValue " + lcdValue); - Slog.d(TAG, "buttonValue " + buttonValue); - Slog.d(TAG, "keyboardValue " + keyboardValue); - } - - if (mAutoBrightessEnabled && mScreenBrightnessOverride < 0) { - if (!mSkippedScreenOn && !mInitialAnimation) { - final int steps; - if (immediate) { - steps = IMMEDIATE_ANIM_STEPS; - } else { - synchronized (mScreenBrightnessAnimator) { - if (mScreenBrightnessAnimator.currentValue <= lcdValue) { - steps = AUTOBRIGHTNESS_ANIM_STEPS; - } else { - steps = AUTODIMNESS_ANIM_STEPS; - } - } - } - mScreenBrightnessAnimator.animateTo(lcdValue, value, - SCREEN_BRIGHT_BIT, steps * NOMINAL_FRAME_TIME_MS); - } - } - if (mButtonBrightnessOverride < 0) { - mButtonLight.setBrightness(buttonValue); - } - if (mButtonBrightnessOverride < 0 || !mKeyboardVisible) { - mKeyboardLight.setBrightness(keyboardValue); - } - } - } - } - - /** - * 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) - { - goToSleepWithReason(time, WindowManagerPolicy.OFF_BECAUSE_OF_USER); - } - - /** - * The user requested that we go to sleep (probably with the power button). - * This overrides all wake locks that are held. - */ - public void goToSleepWithReason(long time, int reason) - { - mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null); - synchronized (mLocks) { - goToSleepLocked(time, reason); - } - } - - /** - * Reboot the device immediately, passing 'reason' (may be null) - * to the underlying __reboot system call. Should not return. - */ - public void reboot(String reason) - { - mContext.enforceCallingOrSelfPermission(android.Manifest.permission.REBOOT, null); - - if (mHandler == null || !ActivityManagerNative.isSystemReady()) { - throw new IllegalStateException("Too early to call reboot()"); - } - - final String finalReason = reason; - Runnable runnable = new Runnable() { - public void run() { - synchronized (this) { - ShutdownThread.reboot(mContext, finalReason, false); - } - - } - }; - // ShutdownThread must run on a looper capable of displaying the UI. - mHandler.post(runnable); - - // PowerManager.reboot() is documented not to return so just wait for the inevitable. - synchronized (runnable) { - while (true) { - try { - runnable.wait(); - } catch (InterruptedException e) { - } - } - } - } - - /** - * Crash the runtime (causing a complete restart of the Android framework). - * Requires REBOOT permission. Mostly for testing. Should not return. - */ - public void crash(final String message) - { - mContext.enforceCallingOrSelfPermission(android.Manifest.permission.REBOOT, null); - Thread t = new Thread("PowerManagerService.crash()") { - public void run() { throw new RuntimeException(message); } - }; - try { - t.start(); - t.join(); - } catch (InterruptedException e) { - Log.wtf(TAG, e); - } - } - - private void goToSleepLocked(long time, int reason) { - if (mSpew) { - Exception ex = new Exception(); - ex.fillInStackTrace(); - Slog.d(TAG, "goToSleep mLastEventTime=" + mLastEventTime + " time=" + time - + " reason=" + reason, ex); - } - - if (mLastEventTime <= time) { - mLastEventTime = time; - // cancel all of the wake locks - mWakeLockState = SCREEN_OFF; - int N = mLocks.size(); - int numCleared = 0; - boolean proxLock = false; - for (int i=0; i<N; i++) { - WakeLock wl = mLocks.get(i); - if (isScreenLock(wl.flags)) { - if (((wl.flags & LOCK_MASK) == PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK) - && reason == WindowManagerPolicy.OFF_BECAUSE_OF_PROX_SENSOR) { - proxLock = true; - } else { - mLocks.get(i).activated = false; - numCleared++; - } - } - } - if (!proxLock) { - mProxIgnoredBecauseScreenTurnedOff = true; - if (mDebugProximitySensor) { - Slog.d(TAG, "setting mProxIgnoredBecauseScreenTurnedOff"); - } - } - EventLog.writeEvent(EventLogTags.POWER_SLEEP_REQUESTED, numCleared); - mStillNeedSleepNotification = true; - mUserState = SCREEN_OFF; - setPowerState(SCREEN_OFF, false, reason); - cancelTimerLocked(); - } - } - - public long timeSinceScreenOn() { - synchronized (mLocks) { - if ((mPowerState & SCREEN_ON_BIT) != 0) { - return 0; - } - return SystemClock.elapsedRealtime() - mScreenOffTime; - } - } - - public void setKeyboardVisibility(boolean visible) { - synchronized (mLocks) { - if (mSpew) { - Slog.d(TAG, "setKeyboardVisibility: " + visible); - } - if (mKeyboardVisible != visible) { - mKeyboardVisible = visible; - // don't signal user activity if the screen is off; other code - // will take care of turning on due to a true change to the lid - // switch and synchronized with the lock screen. - if ((mPowerState & SCREEN_ON_BIT) != 0) { - if (mUseSoftwareAutoBrightness) { - // force recompute of backlight values - if (mLightSensorValue >= 0) { - int value = (int)mLightSensorValue; - mLightSensorValue = -1; - lightSensorChangedLocked(value, false); - } - } - userActivity(SystemClock.uptimeMillis(), false, BUTTON_EVENT, true); - } - } - } - } - - /** - * When the keyguard is up, it manages the power state, and userActivity doesn't do anything. - * When disabling user activity we also reset user power state so the keyguard can reset its - * short screen timeout when keyguard is unhidden. - */ - public void enableUserActivity(boolean enabled) { - if (mSpew) { - Slog.d(TAG, "enableUserActivity " + enabled); - } - synchronized (mLocks) { - mUserActivityAllowed = enabled; - if (!enabled) { - // cancel timeout and clear mUserState so the keyguard can set a short timeout - setTimeoutLocked(SystemClock.uptimeMillis(), 0); - } - } - } - - private void setScreenBrightnessMode(int mode) { - synchronized (mLocks) { - boolean enabled = (mode == SCREEN_BRIGHTNESS_MODE_AUTOMATIC); - if (mUseSoftwareAutoBrightness && mAutoBrightessEnabled != enabled) { - mAutoBrightessEnabled = enabled; - // This will get us a new value - enableLightSensorLocked(mAutoBrightessEnabled && isScreenOn()); - } - } - } - - /** Sets the screen off timeouts: - * mKeylightDelay - * mDimDelay - * mScreenOffDelay - * */ - private void setScreenOffTimeoutsLocked() { - if ((mPokey & POKE_LOCK_SHORT_TIMEOUT) != 0) { - mKeylightDelay = mShortKeylightDelay; // Configurable via secure settings - mDimDelay = -1; - mScreenOffDelay = 0; - } else if ((mPokey & POKE_LOCK_MEDIUM_TIMEOUT) != 0) { - mKeylightDelay = MEDIUM_KEYLIGHT_DELAY; - mDimDelay = -1; - mScreenOffDelay = 0; - } else { - int totalDelay = mScreenOffTimeoutSetting; - if (totalDelay > mMaximumScreenOffTimeout) { - totalDelay = mMaximumScreenOffTimeout; - } - mKeylightDelay = LONG_KEYLIGHT_DELAY; - if (totalDelay < 0) { - // negative number means stay on as long as possible. - mScreenOffDelay = mMaximumScreenOffTimeout; - } 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) { - Slog.d(TAG, "setScreenOffTimeouts mKeylightDelay=" + mKeylightDelay - + " mDimDelay=" + mDimDelay + " mScreenOffDelay=" + mScreenOffDelay - + " mDimScreen=" + mDimScreen); - } - } - - /** - * Refreshes cached secure settings. Called once on startup, and - * on subsequent changes to secure settings. - */ - private void updateSettingsValues() { - mShortKeylightDelay = Settings.Secure.getInt( - mContext.getContentResolver(), - Settings.Secure.SHORT_KEYLIGHT_DELAY_MS, - SHORT_KEYLIGHT_DELAY_DEFAULT); - // Slog.i(TAG, "updateSettingsValues(): mShortKeylightDelay now " + mShortKeylightDelay); - } - - 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; - } - } - if (mDebugProximitySensor) { - Slog.d(TAG, "reactivateScreenLocksLocked mProxIgnoredBecauseScreenTurnedOff=" - + mProxIgnoredBecauseScreenTurnedOff); - } - mProxIgnoredBecauseScreenTurnedOff = false; - return result; - } - } - - public 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() { - mSensorManager = new SystemSensorManager(mHandlerThread.getLooper()); - mProximitySensor = mSensorManager.getDefaultSensor(Sensor.TYPE_PROXIMITY); - // don't bother with the light sensor if auto brightness is handled in hardware - if (mUseSoftwareAutoBrightness) { - mLightSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_LIGHT); - } - - // wait until sensors are enabled before turning on screen. - // some devices will not activate the light sensor properly on boot - // unless we do this. - if (mUseSoftwareAutoBrightness) { - // turn the screen on - setPowerState(SCREEN_BRIGHT); - } else { - // turn everything on - setPowerState(ALL_BRIGHT); - } - - synchronized (mLocks) { - Slog.d(TAG, "system ready!"); - mDoneBooting = true; - - enableLightSensorLocked(mUseSoftwareAutoBrightness && mAutoBrightessEnabled); - - long identity = Binder.clearCallingIdentity(); - try { - mBatteryStats.noteScreenBrightness(getPreferredBrightness()); - mBatteryStats.noteScreenOn(); - } catch (RemoteException e) { - // Nothing interesting to do. - } finally { - Binder.restoreCallingIdentity(identity); - } - } - } - - void bootCompleted() { - Slog.d(TAG, "bootCompleted"); - synchronized (mLocks) { - mBootCompleted = true; - userActivity(SystemClock.uptimeMillis(), false, BUTTON_EVENT, true); - updateWakeLockLocked(); - mLocks.notifyAll(); - } - } - - // for watchdog - public void monitor() { - synchronized (mLocks) { } - } - - public int getSupportedWakeLockFlags() { - int result = PowerManager.PARTIAL_WAKE_LOCK - | PowerManager.FULL_WAKE_LOCK - | PowerManager.SCREEN_DIM_WAKE_LOCK; - - if (mProximitySensor != null) { - result |= PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK; - } - - return result; - } - - public void setBacklightBrightness(int brightness) { - mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null); - // Don't let applications turn the screen all the way off - synchronized (mLocks) { - brightness = Math.max(brightness, mScreenBrightnessDim); - mLcdLight.setBrightness(brightness); - mKeyboardLight.setBrightness(mKeyboardVisible ? brightness : 0); - mButtonLight.setBrightness(brightness); - long identity = Binder.clearCallingIdentity(); - try { - mBatteryStats.noteScreenBrightness(brightness); - } catch (RemoteException e) { - Slog.w(TAG, "RemoteException calling noteScreenBrightness on BatteryStatsService", e); - } finally { - Binder.restoreCallingIdentity(identity); - } - mScreenBrightnessAnimator.animateTo(brightness, SCREEN_BRIGHT_BIT, 0); - } - } - - public void setAutoBrightnessAdjustment(float adj) { - mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null); - synchronized (mLocks) { - mLightSensorAdjustSetting = adj; - if (mSensorManager != null && mLightSensorEnabled) { - // clear calling identity so sensor manager battery stats are accurate - long identity = Binder.clearCallingIdentity(); - try { - // force recompute of backlight values - if (mLightSensorValue >= 0) { - int value = (int)mLightSensorValue; - mLightSensorValue = -1; - handleLightSensorValue(value, true); - } - } finally { - Binder.restoreCallingIdentity(identity); - } - } - } - } - - public void setAttentionLight(boolean on, int color) { - mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null); - mAttentionLight.setFlashing(color, LightsService.LIGHT_FLASH_HARDWARE, (on ? 3 : 0), 0); - } - - private void enableProximityLockLocked() { - if (mDebugProximitySensor) { - Slog.d(TAG, "enableProximityLockLocked"); - } - if (!mProximitySensorEnabled) { - // clear calling identity so sensor manager battery stats are accurate - long identity = Binder.clearCallingIdentity(); - try { - mSensorManager.registerListener(mProximityListener, mProximitySensor, - SensorManager.SENSOR_DELAY_NORMAL); - mProximitySensorEnabled = true; - } finally { - Binder.restoreCallingIdentity(identity); - } - } - } - - private void disableProximityLockLocked() { - if (mDebugProximitySensor) { - Slog.d(TAG, "disableProximityLockLocked"); - } - if (mProximitySensorEnabled) { - // clear calling identity so sensor manager battery stats are accurate - long identity = Binder.clearCallingIdentity(); - try { - mSensorManager.unregisterListener(mProximityListener); - mHandler.removeCallbacks(mProximityTask); - if (mProximityPartialLock.isHeld()) { - mProximityPartialLock.release(); - } - mProximitySensorEnabled = false; - } finally { - Binder.restoreCallingIdentity(identity); - } - if (mProximitySensorActive) { - mProximitySensorActive = false; - if (mDebugProximitySensor) { - Slog.d(TAG, "disableProximityLockLocked mProxIgnoredBecauseScreenTurnedOff=" - + mProxIgnoredBecauseScreenTurnedOff); - } - if (!mProxIgnoredBecauseScreenTurnedOff) { - forceUserActivityLocked(); - } - } - } - } - - private void proximityChangedLocked(boolean active) { - if (mDebugProximitySensor) { - Slog.d(TAG, "proximityChangedLocked, active: " + active); - } - if (!mProximitySensorEnabled) { - Slog.d(TAG, "Ignoring proximity change after sensor is disabled"); - return; - } - if (active) { - if (mDebugProximitySensor) { - Slog.d(TAG, "b mProxIgnoredBecauseScreenTurnedOff=" - + mProxIgnoredBecauseScreenTurnedOff); - } - if (!mProxIgnoredBecauseScreenTurnedOff) { - goToSleepLocked(SystemClock.uptimeMillis(), - WindowManagerPolicy.OFF_BECAUSE_OF_PROX_SENSOR); - } - mProximitySensorActive = true; - } else { - // proximity sensor negative events trigger as user activity. - // temporarily set mUserActivityAllowed to true so this will work - // even when the keyguard is on. - mProximitySensorActive = false; - if (mDebugProximitySensor) { - Slog.d(TAG, "b mProxIgnoredBecauseScreenTurnedOff=" - + mProxIgnoredBecauseScreenTurnedOff); - } - if (!mProxIgnoredBecauseScreenTurnedOff) { - forceUserActivityLocked(); - } - - if (mProximityWakeLockCount == 0) { - // disable sensor if we have no listeners left after proximity negative - disableProximityLockLocked(); - } - } - } - - private void enableLightSensorLocked(boolean enable) { - if (mDebugLightSensor) { - Slog.d(TAG, "enableLightSensorLocked enable=" + enable - + " mLightSensorEnabled=" + mLightSensorEnabled - + " mAutoBrightessEnabled=" + mAutoBrightessEnabled - + " mWaitingForFirstLightSensor=" + mWaitingForFirstLightSensor); - } - if (!mAutoBrightessEnabled) { - enable = false; - } - if (mSensorManager != null && mLightSensorEnabled != enable) { - mLightSensorEnabled = enable; - // clear calling identity so sensor manager battery stats are accurate - long identity = Binder.clearCallingIdentity(); - try { - if (enable) { - // reset our highest value when reenabling - mHighestLightSensorValue = -1; - // force recompute of backlight values - final int value = (int)mLightSensorValue; - if (value >= 0) { - mLightSensorValue = -1; - handleLightSensorValue(value, true); - } - mSensorManager.registerListener(mLightListener, mLightSensor, - LIGHT_SENSOR_RATE); - } else { - mSensorManager.unregisterListener(mLightListener); - mHandler.removeCallbacks(mAutoBrightnessTask); - mLightSensorPendingDecrease = false; - mLightSensorPendingIncrease = false; - } - } finally { - Binder.restoreCallingIdentity(identity); - } - } - } - - SensorEventListener mProximityListener = new SensorEventListener() { - public void onSensorChanged(SensorEvent event) { - long milliseconds = SystemClock.elapsedRealtime(); - synchronized (mLocks) { - float distance = event.values[0]; - long timeSinceLastEvent = milliseconds - mLastProximityEventTime; - mLastProximityEventTime = milliseconds; - mHandler.removeCallbacks(mProximityTask); - boolean proximityTaskQueued = false; - - // compare against getMaximumRange to support sensors that only return 0 or 1 - boolean active = (distance >= 0.0 && distance < PROXIMITY_THRESHOLD && - distance < mProximitySensor.getMaximumRange()); - - if (mDebugProximitySensor) { - Slog.d(TAG, "mProximityListener.onSensorChanged active: " + active); - } - if (timeSinceLastEvent < PROXIMITY_SENSOR_DELAY) { - // enforce delaying atleast PROXIMITY_SENSOR_DELAY before processing - mProximityPendingValue = (active ? 1 : 0); - mHandler.postDelayed(mProximityTask, PROXIMITY_SENSOR_DELAY - timeSinceLastEvent); - proximityTaskQueued = true; - } else { - // process the value immediately - mProximityPendingValue = -1; - proximityChangedLocked(active); - } - - // update mProximityPartialLock state - boolean held = mProximityPartialLock.isHeld(); - if (!held && proximityTaskQueued) { - // hold wakelock until mProximityTask runs - mProximityPartialLock.acquire(); - } else if (held && !proximityTaskQueued) { - mProximityPartialLock.release(); - } - } - } - - public void onAccuracyChanged(Sensor sensor, int accuracy) { - // ignore - } - }; - - private void handleLightSensorValue(int value, boolean immediate) { - long milliseconds = SystemClock.elapsedRealtime(); - if (mLightSensorValue == -1 - || milliseconds < mLastScreenOnTime + mLightSensorWarmupTime - || mWaitingForFirstLightSensor) { - // process the value immediately if screen has just turned on - mHandler.removeCallbacks(mAutoBrightnessTask); - mLightSensorPendingDecrease = false; - mLightSensorPendingIncrease = false; - lightSensorChangedLocked(value, immediate); - } else { - if ((value > mLightSensorValue && mLightSensorPendingDecrease) || - (value < mLightSensorValue && mLightSensorPendingIncrease) || - (value == mLightSensorValue) || - (!mLightSensorPendingDecrease && !mLightSensorPendingIncrease)) { - // delay processing to debounce the sensor - mHandler.removeCallbacks(mAutoBrightnessTask); - mLightSensorPendingDecrease = (value < mLightSensorValue); - mLightSensorPendingIncrease = (value > mLightSensorValue); - if (mLightSensorPendingDecrease || mLightSensorPendingIncrease) { - mLightSensorPendingValue = value; - mHandler.postDelayed(mAutoBrightnessTask, LIGHT_SENSOR_DELAY); - } - } else { - mLightSensorPendingValue = value; - } - } - } - - SensorEventListener mLightListener = new SensorEventListener() { - @Override - public void onSensorChanged(SensorEvent event) { - if (mDebugLightSensor) { - Slog.d(TAG, "onSensorChanged: light value: " + event.values[0]); - } - synchronized (mLocks) { - // ignore light sensor while screen is turning off - if (isScreenTurningOffLocked()) { - return; - } - handleLightSensorValue((int)event.values[0], mWaitingForFirstLightSensor); - if (mWaitingForFirstLightSensor && !mPreparingForScreenOn) { - if (mDebugLightAnimation) { - Slog.d(TAG, "onSensorChanged: Clearing mWaitingForFirstLightSensor."); - } - mWaitingForFirstLightSensor = false; - } - } - } - - @Override - public void onAccuracyChanged(Sensor sensor, int accuracy) { - // ignore - } - }; -} |