PowerManagerService.java revision 6d8fd27e51d799cf7418b14092b5e806d9792812
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server.power; 18 19import com.android.internal.app.IAppOpsService; 20import com.android.internal.app.IBatteryStats; 21import com.android.server.BatteryService; 22import com.android.server.EventLogTags; 23import com.android.server.LocalServices; 24import com.android.server.ServiceThread; 25import com.android.server.lights.Light; 26import com.android.server.lights.LightsManager; 27import com.android.server.Watchdog; 28 29import android.Manifest; 30import android.content.BroadcastReceiver; 31import android.content.ContentResolver; 32import android.content.Context; 33import android.content.Intent; 34import android.content.IntentFilter; 35import android.content.pm.PackageManager; 36import android.content.res.Resources; 37import android.database.ContentObserver; 38import android.hardware.SensorManager; 39import android.hardware.SystemSensorManager; 40import android.hardware.display.DisplayManagerInternal; 41import android.hardware.display.DisplayManagerInternal.DisplayPowerRequest; 42import android.net.Uri; 43import android.os.BatteryManager; 44import android.os.Binder; 45import android.os.Handler; 46import android.os.IBinder; 47import android.os.IPowerManager; 48import android.os.Looper; 49import android.os.Message; 50import android.os.PowerManager; 51import android.os.PowerManagerInternal; 52import android.os.Process; 53import android.os.RemoteException; 54import android.os.SystemClock; 55import android.os.SystemProperties; 56import android.os.SystemService; 57import android.os.UserHandle; 58import android.os.WorkSource; 59import android.provider.Settings; 60import android.service.dreams.DreamManagerInternal; 61import android.util.EventLog; 62import android.util.Log; 63import android.util.Slog; 64import android.util.TimeUtils; 65import android.view.Display; 66import android.view.WindowManagerPolicy; 67 68import java.io.FileDescriptor; 69import java.io.PrintWriter; 70import java.util.ArrayList; 71 72import libcore.util.Objects; 73 74/** 75 * The power manager service is responsible for coordinating power management 76 * functions on the device. 77 */ 78public final class PowerManagerService extends com.android.server.SystemService 79 implements Watchdog.Monitor { 80 private static final String TAG = "PowerManagerService"; 81 82 private static final boolean DEBUG = false; 83 private static final boolean DEBUG_SPEW = DEBUG && true; 84 85 // Message: Sent when a user activity timeout occurs to update the power state. 86 private static final int MSG_USER_ACTIVITY_TIMEOUT = 1; 87 // Message: Sent when the device enters or exits a dreaming or dozing state. 88 private static final int MSG_SANDMAN = 2; 89 // Message: Sent when the screen on blocker is released. 90 private static final int MSG_SCREEN_ON_BLOCKER_RELEASED = 3; 91 // Message: Sent to poll whether the boot animation has terminated. 92 private static final int MSG_CHECK_IF_BOOT_ANIMATION_FINISHED = 4; 93 94 // Dirty bit: mWakeLocks changed 95 private static final int DIRTY_WAKE_LOCKS = 1 << 0; 96 // Dirty bit: mWakefulness changed 97 private static final int DIRTY_WAKEFULNESS = 1 << 1; 98 // Dirty bit: user activity was poked or may have timed out 99 private static final int DIRTY_USER_ACTIVITY = 1 << 2; 100 // Dirty bit: actual display power state was updated asynchronously 101 private static final int DIRTY_ACTUAL_DISPLAY_POWER_STATE_UPDATED = 1 << 3; 102 // Dirty bit: mBootCompleted changed 103 private static final int DIRTY_BOOT_COMPLETED = 1 << 4; 104 // Dirty bit: settings changed 105 private static final int DIRTY_SETTINGS = 1 << 5; 106 // Dirty bit: mIsPowered changed 107 private static final int DIRTY_IS_POWERED = 1 << 6; 108 // Dirty bit: mStayOn changed 109 private static final int DIRTY_STAY_ON = 1 << 7; 110 // Dirty bit: battery state changed 111 private static final int DIRTY_BATTERY_STATE = 1 << 8; 112 // Dirty bit: proximity state changed 113 private static final int DIRTY_PROXIMITY_POSITIVE = 1 << 9; 114 // Dirty bit: screen on blocker state became held or unheld 115 private static final int DIRTY_SCREEN_ON_BLOCKER_RELEASED = 1 << 10; 116 // Dirty bit: dock state changed 117 private static final int DIRTY_DOCK_STATE = 1 << 11; 118 119 // Wakefulness: The device is asleep and can only be awoken by a call to wakeUp(). 120 // The screen should be off or in the process of being turned off by the display controller. 121 // The device typically passes through the dozing state first. 122 private static final int WAKEFULNESS_ASLEEP = 0; 123 // Wakefulness: The device is fully awake. It can be put to sleep by a call to goToSleep(). 124 // When the user activity timeout expires, the device may start dreaming or go to sleep. 125 private static final int WAKEFULNESS_AWAKE = 1; 126 // Wakefulness: The device is dreaming. It can be awoken by a call to wakeUp(), 127 // which ends the dream. The device goes to sleep when goToSleep() is called, when 128 // the dream ends or when unplugged. 129 // User activity may brighten the screen but does not end the dream. 130 private static final int WAKEFULNESS_DREAMING = 2; 131 // Wakefulness: The device is dozing. It is almost asleep but is allowing a special 132 // low-power "doze" dream to run which keeps the display on but lets the application 133 // processor be suspended. It can be awoken by a call to wakeUp() which ends the dream. 134 // The device fully goes to sleep if the dream cannot be started or ends on its own. 135 private static final int WAKEFULNESS_DOZING = 3; 136 137 // Summarizes the state of all active wakelocks. 138 private static final int WAKE_LOCK_CPU = 1 << 0; 139 private static final int WAKE_LOCK_SCREEN_BRIGHT = 1 << 1; 140 private static final int WAKE_LOCK_SCREEN_DIM = 1 << 2; 141 private static final int WAKE_LOCK_BUTTON_BRIGHT = 1 << 3; 142 private static final int WAKE_LOCK_PROXIMITY_SCREEN_OFF = 1 << 4; 143 private static final int WAKE_LOCK_STAY_AWAKE = 1 << 5; // only set if already awake 144 private static final int WAKE_LOCK_DOZE = 1 << 6; 145 146 // Summarizes the user activity state. 147 private static final int USER_ACTIVITY_SCREEN_BRIGHT = 1 << 0; 148 private static final int USER_ACTIVITY_SCREEN_DIM = 1 << 1; 149 150 // Default timeout in milliseconds. This is only used until the settings 151 // provider populates the actual default value (R.integer.def_screen_off_timeout). 152 private static final int DEFAULT_SCREEN_OFF_TIMEOUT = 15 * 1000; 153 154 // The name of the boot animation service in init.rc. 155 private static final String BOOT_ANIMATION_SERVICE = "bootanim"; 156 157 // Poll interval in milliseconds for watching boot animation finished. 158 private static final int BOOT_ANIMATION_POLL_INTERVAL = 200; 159 160 private final Context mContext; 161 private LightsManager mLightsManager; 162 private BatteryService mBatteryService; 163 private DisplayManagerInternal mDisplayManagerInternal; 164 private IBatteryStats mBatteryStats; 165 private IAppOpsService mAppOps; 166 private ServiceThread mHandlerThread; 167 private PowerManagerHandler mHandler; 168 private WindowManagerPolicy mPolicy; 169 private Notifier mNotifier; 170 private WirelessChargerDetector mWirelessChargerDetector; 171 private SettingsObserver mSettingsObserver; 172 private DreamManagerInternal mDreamManager; 173 private Light mAttentionLight; 174 175 private final Object mLock = new Object(); 176 177 // A bitfield that indicates what parts of the power state have 178 // changed and need to be recalculated. 179 private int mDirty; 180 181 // Indicates whether the device is awake or asleep or somewhere in between. 182 // This is distinct from the screen power state, which is managed separately. 183 private int mWakefulness; 184 185 // True if the sandman has just been summoned for the first time since entering the 186 // dreaming or dozing state. Indicates whether a new dream should begin. 187 private boolean mSandmanSummoned; 188 189 // True if MSG_SANDMAN has been scheduled. 190 private boolean mSandmanScheduled; 191 192 // Table of all suspend blockers. 193 // There should only be a few of these. 194 private final ArrayList<SuspendBlocker> mSuspendBlockers = new ArrayList<SuspendBlocker>(); 195 196 // Table of all wake locks acquired by applications. 197 private final ArrayList<WakeLock> mWakeLocks = new ArrayList<WakeLock>(); 198 199 // A bitfield that summarizes the state of all active wakelocks. 200 private int mWakeLockSummary; 201 202 // True if the device is in an interactive state. 203 private boolean mInteractive; 204 private boolean mInteractiveChanging; 205 206 // If true, instructs the display controller to wait for the proximity sensor to 207 // go negative before turning the screen on. 208 private boolean mRequestWaitForNegativeProximity; 209 210 // Timestamp of the last time the device was awoken or put to sleep. 211 private long mLastWakeTime; 212 private long mLastSleepTime; 213 214 // Timestamp of the last call to user activity. 215 private long mLastUserActivityTime; 216 private long mLastUserActivityTimeNoChangeLights; 217 218 // A bitfield that summarizes the effect of the user activity timer. 219 // A zero value indicates that the user activity timer has expired. 220 private int mUserActivitySummary; 221 222 // The desired display power state. The actual state may lag behind the 223 // requested because it is updated asynchronously by the display power controller. 224 private final DisplayPowerRequest mDisplayPowerRequest = new DisplayPowerRequest(); 225 226 // True if the display power state has been fully applied, which means the display 227 // is actually on or actually off or whatever was requested. 228 private boolean mDisplayReady; 229 230 // The suspend blocker used to keep the CPU alive when an application has acquired 231 // a wake lock. 232 private final SuspendBlocker mWakeLockSuspendBlocker; 233 234 // True if the wake lock suspend blocker has been acquired. 235 private boolean mHoldingWakeLockSuspendBlocker; 236 237 // The suspend blocker used to keep the CPU alive when the display is on, the 238 // display is getting ready or there is user activity (in which case the display 239 // must be on). 240 private final SuspendBlocker mDisplaySuspendBlocker; 241 242 // True if the display suspend blocker has been acquired. 243 private boolean mHoldingDisplaySuspendBlocker; 244 245 // The screen on blocker used to keep the screen from turning on while the lock 246 // screen is coming up. 247 private final ScreenOnBlockerImpl mScreenOnBlocker; 248 249 // True if systemReady() has been called. 250 private boolean mSystemReady; 251 252 // True if boot completed occurred. We keep the screen on until this happens. 253 private boolean mBootCompleted; 254 255 // True if auto-suspend mode is enabled. 256 // Refer to autosuspend.h. 257 private boolean mHalAutoSuspendModeEnabled; 258 259 // True if interactive mode is enabled. 260 // Refer to power.h. 261 private boolean mHalInteractiveModeEnabled; 262 263 // True if the device is plugged into a power source. 264 private boolean mIsPowered; 265 266 // The current plug type, such as BatteryManager.BATTERY_PLUGGED_WIRELESS. 267 private int mPlugType; 268 269 // The current battery level percentage. 270 private int mBatteryLevel; 271 272 // The battery level percentage at the time the dream started. 273 // This is used to terminate a dream and go to sleep if the battery is 274 // draining faster than it is charging and the user activity timeout has expired. 275 private int mBatteryLevelWhenDreamStarted; 276 277 // The current dock state. 278 private int mDockState = Intent.EXTRA_DOCK_STATE_UNDOCKED; 279 280 // True to decouple auto-suspend mode from the display state. 281 private boolean mDecoupleHalAutoSuspendModeFromDisplayConfig; 282 283 // True to decouple interactive mode from the display state. 284 private boolean mDecoupleHalInteractiveModeFromDisplayConfig; 285 286 // True if the device should wake up when plugged or unplugged. 287 private boolean mWakeUpWhenPluggedOrUnpluggedConfig; 288 289 // True if the device should suspend when the screen is off due to proximity. 290 private boolean mSuspendWhenScreenOffDueToProximityConfig; 291 292 // True if dreams are supported on this device. 293 private boolean mDreamsSupportedConfig; 294 295 // Default value for dreams enabled 296 private boolean mDreamsEnabledByDefaultConfig; 297 298 // Default value for dreams activate-on-sleep 299 private boolean mDreamsActivatedOnSleepByDefaultConfig; 300 301 // Default value for dreams activate-on-dock 302 private boolean mDreamsActivatedOnDockByDefaultConfig; 303 304 // True if dreams can run while not plugged in. 305 private boolean mDreamsEnabledOnBatteryConfig; 306 307 // Minimum battery level to allow dreaming when powered. 308 // Use -1 to disable this safety feature. 309 private int mDreamsBatteryLevelMinimumWhenPoweredConfig; 310 311 // Minimum battery level to allow dreaming when not powered. 312 // Use -1 to disable this safety feature. 313 private int mDreamsBatteryLevelMinimumWhenNotPoweredConfig; 314 315 // If the battery level drops by this percentage and the user activity timeout 316 // has expired, then assume the device is receiving insufficient current to charge 317 // effectively and terminate the dream. Use -1 to disable this safety feature. 318 private int mDreamsBatteryLevelDrainCutoffConfig; 319 320 // True if dreams are enabled by the user. 321 private boolean mDreamsEnabledSetting; 322 323 // True if dreams should be activated on sleep. 324 private boolean mDreamsActivateOnSleepSetting; 325 326 // True if dreams should be activated on dock. 327 private boolean mDreamsActivateOnDockSetting; 328 329 // The minimum screen off timeout, in milliseconds. 330 private int mMinimumScreenOffTimeoutConfig; 331 332 // The screen dim duration, in milliseconds. 333 // This is subtracted from the end of the screen off timeout so the 334 // minimum screen off timeout should be longer than this. 335 private int mMaximumScreenDimDurationConfig; 336 337 // The maximum screen dim time expressed as a ratio relative to the screen 338 // off timeout. If the screen off timeout is very short then we want the 339 // dim timeout to also be quite short so that most of the time is spent on. 340 // Otherwise the user won't get much screen on time before dimming occurs. 341 private float mMaximumScreenDimRatioConfig; 342 343 // The screen off timeout setting value in milliseconds. 344 private int mScreenOffTimeoutSetting; 345 346 // The maximum allowable screen off timeout according to the device 347 // administration policy. Overrides other settings. 348 private int mMaximumScreenOffTimeoutFromDeviceAdmin = Integer.MAX_VALUE; 349 350 // The stay on while plugged in setting. 351 // A bitfield of battery conditions under which to make the screen stay on. 352 private int mStayOnWhilePluggedInSetting; 353 354 // True if the device should stay on. 355 private boolean mStayOn; 356 357 // True if the proximity sensor reads a positive result. 358 private boolean mProximityPositive; 359 360 // Screen brightness setting limits. 361 private int mScreenBrightnessSettingMinimum; 362 private int mScreenBrightnessSettingMaximum; 363 private int mScreenBrightnessSettingDefault; 364 365 // The screen brightness setting, from 0 to 255. 366 // Use -1 if no value has been set. 367 private int mScreenBrightnessSetting; 368 369 // The screen auto-brightness adjustment setting, from -1 to 1. 370 // Use 0 if there is no adjustment. 371 private float mScreenAutoBrightnessAdjustmentSetting; 372 373 // The screen brightness mode. 374 // One of the Settings.System.SCREEN_BRIGHTNESS_MODE_* constants. 375 private int mScreenBrightnessModeSetting; 376 377 // The screen brightness setting override from the window manager 378 // to allow the current foreground activity to override the brightness. 379 // Use -1 to disable. 380 private int mScreenBrightnessOverrideFromWindowManager = -1; 381 382 // The user activity timeout override from the window manager 383 // to allow the current foreground activity to override the user activity timeout. 384 // Use -1 to disable. 385 private long mUserActivityTimeoutOverrideFromWindowManager = -1; 386 387 // The screen brightness setting override from the settings application 388 // to temporarily adjust the brightness until next updated, 389 // Use -1 to disable. 390 private int mTemporaryScreenBrightnessSettingOverride = -1; 391 392 // The screen brightness adjustment setting override from the settings 393 // application to temporarily adjust the auto-brightness adjustment factor 394 // until next updated, in the range -1..1. 395 // Use NaN to disable. 396 private float mTemporaryScreenAutoBrightnessAdjustmentSettingOverride = Float.NaN; 397 398 // Time when we last logged a warning about calling userActivity() without permission. 399 private long mLastWarningAboutUserActivityPermission = Long.MIN_VALUE; 400 401 private native void nativeInit(); 402 403 private static native void nativeAcquireSuspendBlocker(String name); 404 private static native void nativeReleaseSuspendBlocker(String name); 405 private static native void nativeSetInteractive(boolean enable); 406 private static native void nativeSetAutoSuspend(boolean enable); 407 408 public PowerManagerService(Context context) { 409 super(context); 410 mContext = context; 411 synchronized (mLock) { 412 mWakeLockSuspendBlocker = createSuspendBlockerLocked("PowerManagerService.WakeLocks"); 413 mDisplaySuspendBlocker = createSuspendBlockerLocked("PowerManagerService.Display"); 414 mDisplaySuspendBlocker.acquire(); 415 mHoldingDisplaySuspendBlocker = true; 416 mHalAutoSuspendModeEnabled = false; 417 mHalInteractiveModeEnabled = true; 418 419 mScreenOnBlocker = new ScreenOnBlockerImpl(); 420 mWakefulness = WAKEFULNESS_AWAKE; 421 mInteractive = true; 422 423 nativeInit(); 424 nativeSetAutoSuspend(false); 425 nativeSetInteractive(true); 426 } 427 } 428 429 @Override 430 public void onStart() { 431 publishBinderService(Context.POWER_SERVICE, new BinderService()); 432 publishLocalService(PowerManagerInternal.class, new LocalService()); 433 } 434 435 /** 436 * Initialize the power manager. 437 * Must be called before any other functions within the power manager are called. 438 */ 439 public void init(LightsManager ls, 440 BatteryService bs, IBatteryStats bss, 441 IAppOpsService appOps) { 442 mLightsManager = ls; 443 mBatteryService = bs; 444 mBatteryStats = bss; 445 mAppOps = appOps; 446 mDisplayManagerInternal = getLocalService(DisplayManagerInternal.class); 447 mHandlerThread = new ServiceThread(TAG, 448 Process.THREAD_PRIORITY_DISPLAY, false /*allowIo*/); 449 mHandlerThread.start(); 450 mHandler = new PowerManagerHandler(mHandlerThread.getLooper()); 451 452 Watchdog.getInstance().addMonitor(this); 453 Watchdog.getInstance().addThread(mHandler); 454 } 455 456 void setPolicy(WindowManagerPolicy policy) { 457 synchronized (mLock) { 458 mPolicy = policy; 459 } 460 } 461 462 public void systemReady() { 463 synchronized (mLock) { 464 mSystemReady = true; 465 mDreamManager = LocalServices.getService(DreamManagerInternal.class); 466 467 PowerManager pm = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE); 468 mScreenBrightnessSettingMinimum = pm.getMinimumScreenBrightnessSetting(); 469 mScreenBrightnessSettingMaximum = pm.getMaximumScreenBrightnessSetting(); 470 mScreenBrightnessSettingDefault = pm.getDefaultScreenBrightnessSetting(); 471 472 SensorManager sensorManager = new SystemSensorManager(mContext, mHandler.getLooper()); 473 474 // The notifier runs on the system server's main looper so as not to interfere 475 // with the animations and other critical functions of the power manager. 476 mNotifier = new Notifier(Looper.getMainLooper(), mContext, mBatteryStats, 477 mAppOps, createSuspendBlockerLocked("PowerManagerService.Broadcasts"), 478 mScreenOnBlocker, mPolicy); 479 480 mWirelessChargerDetector = new WirelessChargerDetector(sensorManager, 481 createSuspendBlockerLocked("PowerManagerService.WirelessChargerDetector"), 482 mHandler); 483 mSettingsObserver = new SettingsObserver(mHandler); 484 mAttentionLight = mLightsManager.getLight(LightsManager.LIGHT_ID_ATTENTION); 485 486 // Initialize display power management. 487 mDisplayManagerInternal.initPowerManagement( 488 mDisplayPowerCallbacks, mHandler, sensorManager); 489 490 // Register for broadcasts from other components of the system. 491 IntentFilter filter = new IntentFilter(); 492 filter.addAction(Intent.ACTION_BATTERY_CHANGED); 493 mContext.registerReceiver(new BatteryReceiver(), filter, null, mHandler); 494 495 filter = new IntentFilter(); 496 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 497 mContext.registerReceiver(new BootCompletedReceiver(), filter, null, mHandler); 498 499 filter = new IntentFilter(); 500 filter.addAction(Intent.ACTION_DREAMING_STARTED); 501 filter.addAction(Intent.ACTION_DREAMING_STOPPED); 502 mContext.registerReceiver(new DreamReceiver(), filter, null, mHandler); 503 504 filter = new IntentFilter(); 505 filter.addAction(Intent.ACTION_USER_SWITCHED); 506 mContext.registerReceiver(new UserSwitchedReceiver(), filter, null, mHandler); 507 508 filter = new IntentFilter(); 509 filter.addAction(Intent.ACTION_DOCK_EVENT); 510 mContext.registerReceiver(new DockReceiver(), filter, null, mHandler); 511 512 // Register for settings changes. 513 final ContentResolver resolver = mContext.getContentResolver(); 514 resolver.registerContentObserver(Settings.Secure.getUriFor( 515 Settings.Secure.SCREENSAVER_ENABLED), 516 false, mSettingsObserver, UserHandle.USER_ALL); 517 resolver.registerContentObserver(Settings.Secure.getUriFor( 518 Settings.Secure.SCREENSAVER_ACTIVATE_ON_SLEEP), 519 false, mSettingsObserver, UserHandle.USER_ALL); 520 resolver.registerContentObserver(Settings.Secure.getUriFor( 521 Settings.Secure.SCREENSAVER_ACTIVATE_ON_DOCK), 522 false, mSettingsObserver, UserHandle.USER_ALL); 523 resolver.registerContentObserver(Settings.System.getUriFor( 524 Settings.System.SCREEN_OFF_TIMEOUT), 525 false, mSettingsObserver, UserHandle.USER_ALL); 526 resolver.registerContentObserver(Settings.Global.getUriFor( 527 Settings.Global.STAY_ON_WHILE_PLUGGED_IN), 528 false, mSettingsObserver, UserHandle.USER_ALL); 529 resolver.registerContentObserver(Settings.System.getUriFor( 530 Settings.System.SCREEN_BRIGHTNESS), 531 false, mSettingsObserver, UserHandle.USER_ALL); 532 resolver.registerContentObserver(Settings.System.getUriFor( 533 Settings.System.SCREEN_BRIGHTNESS_MODE), 534 false, mSettingsObserver, UserHandle.USER_ALL); 535 536 // Go. 537 readConfigurationLocked(); 538 updateSettingsLocked(); 539 mDirty |= DIRTY_BATTERY_STATE; 540 updatePowerStateLocked(); 541 } 542 } 543 544 private void readConfigurationLocked() { 545 final Resources resources = mContext.getResources(); 546 547 mDecoupleHalAutoSuspendModeFromDisplayConfig = resources.getBoolean( 548 com.android.internal.R.bool.config_powerDecoupleAutoSuspendModeFromDisplay); 549 mDecoupleHalInteractiveModeFromDisplayConfig = resources.getBoolean( 550 com.android.internal.R.bool.config_powerDecoupleInteractiveModeFromDisplay); 551 mWakeUpWhenPluggedOrUnpluggedConfig = resources.getBoolean( 552 com.android.internal.R.bool.config_unplugTurnsOnScreen); 553 mSuspendWhenScreenOffDueToProximityConfig = resources.getBoolean( 554 com.android.internal.R.bool.config_suspendWhenScreenOffDueToProximity); 555 mDreamsSupportedConfig = resources.getBoolean( 556 com.android.internal.R.bool.config_dreamsSupported); 557 mDreamsEnabledByDefaultConfig = resources.getBoolean( 558 com.android.internal.R.bool.config_dreamsEnabledByDefault); 559 mDreamsActivatedOnSleepByDefaultConfig = resources.getBoolean( 560 com.android.internal.R.bool.config_dreamsActivatedOnSleepByDefault); 561 mDreamsActivatedOnDockByDefaultConfig = resources.getBoolean( 562 com.android.internal.R.bool.config_dreamsActivatedOnDockByDefault); 563 mDreamsEnabledOnBatteryConfig = resources.getBoolean( 564 com.android.internal.R.bool.config_dreamsEnabledOnBattery); 565 mDreamsBatteryLevelMinimumWhenPoweredConfig = resources.getInteger( 566 com.android.internal.R.integer.config_dreamsBatteryLevelMinimumWhenPowered); 567 mDreamsBatteryLevelMinimumWhenNotPoweredConfig = resources.getInteger( 568 com.android.internal.R.integer.config_dreamsBatteryLevelMinimumWhenNotPowered); 569 mDreamsBatteryLevelDrainCutoffConfig = resources.getInteger( 570 com.android.internal.R.integer.config_dreamsBatteryLevelDrainCutoff); 571 mMinimumScreenOffTimeoutConfig = resources.getInteger( 572 com.android.internal.R.integer.config_minimumScreenOffTimeout); 573 mMaximumScreenDimDurationConfig = resources.getInteger( 574 com.android.internal.R.integer.config_maximumScreenDimDuration); 575 mMaximumScreenDimRatioConfig = resources.getFraction( 576 com.android.internal.R.fraction.config_maximumScreenDimRatio, 1, 1); 577 } 578 579 private void updateSettingsLocked() { 580 final ContentResolver resolver = mContext.getContentResolver(); 581 582 mDreamsEnabledSetting = (Settings.Secure.getIntForUser(resolver, 583 Settings.Secure.SCREENSAVER_ENABLED, 584 mDreamsEnabledByDefaultConfig ? 1 : 0, 585 UserHandle.USER_CURRENT) != 0); 586 mDreamsActivateOnSleepSetting = (Settings.Secure.getIntForUser(resolver, 587 Settings.Secure.SCREENSAVER_ACTIVATE_ON_SLEEP, 588 mDreamsActivatedOnSleepByDefaultConfig ? 1 : 0, 589 UserHandle.USER_CURRENT) != 0); 590 mDreamsActivateOnDockSetting = (Settings.Secure.getIntForUser(resolver, 591 Settings.Secure.SCREENSAVER_ACTIVATE_ON_DOCK, 592 mDreamsActivatedOnDockByDefaultConfig ? 1 : 0, 593 UserHandle.USER_CURRENT) != 0); 594 mScreenOffTimeoutSetting = Settings.System.getIntForUser(resolver, 595 Settings.System.SCREEN_OFF_TIMEOUT, DEFAULT_SCREEN_OFF_TIMEOUT, 596 UserHandle.USER_CURRENT); 597 mStayOnWhilePluggedInSetting = Settings.Global.getInt(resolver, 598 Settings.Global.STAY_ON_WHILE_PLUGGED_IN, BatteryManager.BATTERY_PLUGGED_AC); 599 600 final int oldScreenBrightnessSetting = mScreenBrightnessSetting; 601 mScreenBrightnessSetting = Settings.System.getIntForUser(resolver, 602 Settings.System.SCREEN_BRIGHTNESS, mScreenBrightnessSettingDefault, 603 UserHandle.USER_CURRENT); 604 if (oldScreenBrightnessSetting != mScreenBrightnessSetting) { 605 mTemporaryScreenBrightnessSettingOverride = -1; 606 } 607 608 final float oldScreenAutoBrightnessAdjustmentSetting = 609 mScreenAutoBrightnessAdjustmentSetting; 610 mScreenAutoBrightnessAdjustmentSetting = Settings.System.getFloatForUser(resolver, 611 Settings.System.SCREEN_AUTO_BRIGHTNESS_ADJ, 0.0f, 612 UserHandle.USER_CURRENT); 613 if (oldScreenAutoBrightnessAdjustmentSetting != mScreenAutoBrightnessAdjustmentSetting) { 614 mTemporaryScreenAutoBrightnessAdjustmentSettingOverride = Float.NaN; 615 } 616 617 mScreenBrightnessModeSetting = Settings.System.getIntForUser(resolver, 618 Settings.System.SCREEN_BRIGHTNESS_MODE, 619 Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL, UserHandle.USER_CURRENT); 620 621 mDirty |= DIRTY_SETTINGS; 622 } 623 624 private void handleSettingsChangedLocked() { 625 updateSettingsLocked(); 626 updatePowerStateLocked(); 627 } 628 629 private void acquireWakeLockInternal(IBinder lock, int flags, String tag, String packageName, 630 WorkSource ws, int uid, int pid) { 631 synchronized (mLock) { 632 if (DEBUG_SPEW) { 633 Slog.d(TAG, "acquireWakeLockInternal: lock=" + Objects.hashCode(lock) 634 + ", flags=0x" + Integer.toHexString(flags) 635 + ", tag=\"" + tag + "\", ws=" + ws + ", uid=" + uid + ", pid=" + pid); 636 } 637 638 WakeLock wakeLock; 639 int index = findWakeLockIndexLocked(lock); 640 if (index >= 0) { 641 wakeLock = mWakeLocks.get(index); 642 if (!wakeLock.hasSameProperties(flags, tag, ws, uid, pid)) { 643 // Update existing wake lock. This shouldn't happen but is harmless. 644 notifyWakeLockReleasedLocked(wakeLock); 645 wakeLock.updateProperties(flags, tag, packageName, ws, uid, pid); 646 notifyWakeLockAcquiredLocked(wakeLock); 647 } 648 } else { 649 wakeLock = new WakeLock(lock, flags, tag, packageName, ws, uid, pid); 650 try { 651 lock.linkToDeath(wakeLock, 0); 652 } catch (RemoteException ex) { 653 throw new IllegalArgumentException("Wake lock is already dead."); 654 } 655 notifyWakeLockAcquiredLocked(wakeLock); 656 mWakeLocks.add(wakeLock); 657 } 658 659 applyWakeLockFlagsOnAcquireLocked(wakeLock); 660 mDirty |= DIRTY_WAKE_LOCKS; 661 updatePowerStateLocked(); 662 } 663 } 664 665 @SuppressWarnings("deprecation") 666 private static boolean isScreenLock(final WakeLock wakeLock) { 667 switch (wakeLock.mFlags & PowerManager.WAKE_LOCK_LEVEL_MASK) { 668 case PowerManager.FULL_WAKE_LOCK: 669 case PowerManager.SCREEN_BRIGHT_WAKE_LOCK: 670 case PowerManager.SCREEN_DIM_WAKE_LOCK: 671 return true; 672 } 673 return false; 674 } 675 676 private void applyWakeLockFlagsOnAcquireLocked(WakeLock wakeLock) { 677 if ((wakeLock.mFlags & PowerManager.ACQUIRE_CAUSES_WAKEUP) != 0 678 && isScreenLock(wakeLock)) { 679 wakeUpNoUpdateLocked(SystemClock.uptimeMillis()); 680 } 681 } 682 683 private void releaseWakeLockInternal(IBinder lock, int flags) { 684 synchronized (mLock) { 685 int index = findWakeLockIndexLocked(lock); 686 if (index < 0) { 687 if (DEBUG_SPEW) { 688 Slog.d(TAG, "releaseWakeLockInternal: lock=" + Objects.hashCode(lock) 689 + " [not found], flags=0x" + Integer.toHexString(flags)); 690 } 691 return; 692 } 693 694 WakeLock wakeLock = mWakeLocks.get(index); 695 if (DEBUG_SPEW) { 696 Slog.d(TAG, "releaseWakeLockInternal: lock=" + Objects.hashCode(lock) 697 + " [" + wakeLock.mTag + "], flags=0x" + Integer.toHexString(flags)); 698 } 699 700 mWakeLocks.remove(index); 701 notifyWakeLockReleasedLocked(wakeLock); 702 wakeLock.mLock.unlinkToDeath(wakeLock, 0); 703 704 if ((flags & PowerManager.WAIT_FOR_PROXIMITY_NEGATIVE) != 0) { 705 mRequestWaitForNegativeProximity = true; 706 } 707 708 applyWakeLockFlagsOnReleaseLocked(wakeLock); 709 mDirty |= DIRTY_WAKE_LOCKS; 710 updatePowerStateLocked(); 711 } 712 } 713 714 private void handleWakeLockDeath(WakeLock wakeLock) { 715 synchronized (mLock) { 716 if (DEBUG_SPEW) { 717 Slog.d(TAG, "handleWakeLockDeath: lock=" + Objects.hashCode(wakeLock.mLock) 718 + " [" + wakeLock.mTag + "]"); 719 } 720 721 int index = mWakeLocks.indexOf(wakeLock); 722 if (index < 0) { 723 return; 724 } 725 726 mWakeLocks.remove(index); 727 notifyWakeLockReleasedLocked(wakeLock); 728 729 applyWakeLockFlagsOnReleaseLocked(wakeLock); 730 mDirty |= DIRTY_WAKE_LOCKS; 731 updatePowerStateLocked(); 732 } 733 } 734 735 private void applyWakeLockFlagsOnReleaseLocked(WakeLock wakeLock) { 736 if ((wakeLock.mFlags & PowerManager.ON_AFTER_RELEASE) != 0 737 && isScreenLock(wakeLock)) { 738 userActivityNoUpdateLocked(SystemClock.uptimeMillis(), 739 PowerManager.USER_ACTIVITY_EVENT_OTHER, 740 PowerManager.USER_ACTIVITY_FLAG_NO_CHANGE_LIGHTS, 741 wakeLock.mOwnerUid); 742 } 743 } 744 745 private void updateWakeLockWorkSourceInternal(IBinder lock, WorkSource ws) { 746 synchronized (mLock) { 747 int index = findWakeLockIndexLocked(lock); 748 if (index < 0) { 749 if (DEBUG_SPEW) { 750 Slog.d(TAG, "updateWakeLockWorkSourceInternal: lock=" + Objects.hashCode(lock) 751 + " [not found], ws=" + ws); 752 } 753 throw new IllegalArgumentException("Wake lock not active"); 754 } 755 756 WakeLock wakeLock = mWakeLocks.get(index); 757 if (DEBUG_SPEW) { 758 Slog.d(TAG, "updateWakeLockWorkSourceInternal: lock=" + Objects.hashCode(lock) 759 + " [" + wakeLock.mTag + "], ws=" + ws); 760 } 761 762 if (!wakeLock.hasSameWorkSource(ws)) { 763 notifyWakeLockReleasedLocked(wakeLock); 764 wakeLock.updateWorkSource(ws); 765 notifyWakeLockAcquiredLocked(wakeLock); 766 } 767 } 768 } 769 770 private int findWakeLockIndexLocked(IBinder lock) { 771 final int count = mWakeLocks.size(); 772 for (int i = 0; i < count; i++) { 773 if (mWakeLocks.get(i).mLock == lock) { 774 return i; 775 } 776 } 777 return -1; 778 } 779 780 private void notifyWakeLockAcquiredLocked(WakeLock wakeLock) { 781 if (mSystemReady) { 782 wakeLock.mNotifiedAcquired = true; 783 mNotifier.onWakeLockAcquired(wakeLock.mFlags, wakeLock.mTag, wakeLock.mPackageName, 784 wakeLock.mOwnerUid, wakeLock.mOwnerPid, wakeLock.mWorkSource); 785 } 786 } 787 788 private void notifyWakeLockReleasedLocked(WakeLock wakeLock) { 789 if (mSystemReady && wakeLock.mNotifiedAcquired) { 790 wakeLock.mNotifiedAcquired = false; 791 mNotifier.onWakeLockReleased(wakeLock.mFlags, wakeLock.mTag, wakeLock.mPackageName, 792 wakeLock.mOwnerUid, wakeLock.mOwnerPid, wakeLock.mWorkSource); 793 } 794 } 795 796 @SuppressWarnings("deprecation") 797 private boolean isWakeLockLevelSupportedInternal(int level) { 798 synchronized (mLock) { 799 switch (level) { 800 case PowerManager.PARTIAL_WAKE_LOCK: 801 case PowerManager.SCREEN_DIM_WAKE_LOCK: 802 case PowerManager.SCREEN_BRIGHT_WAKE_LOCK: 803 case PowerManager.FULL_WAKE_LOCK: 804 case PowerManager.DOZE_WAKE_LOCK: 805 return true; 806 807 case PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK: 808 return mSystemReady && mDisplayManagerInternal.isProximitySensorAvailable(); 809 810 default: 811 return false; 812 } 813 } 814 } 815 816 // Called from native code. 817 private void userActivityFromNative(long eventTime, int event, int flags) { 818 userActivityInternal(eventTime, event, flags, Process.SYSTEM_UID); 819 } 820 821 private void userActivityInternal(long eventTime, int event, int flags, int uid) { 822 synchronized (mLock) { 823 if (userActivityNoUpdateLocked(eventTime, event, flags, uid)) { 824 updatePowerStateLocked(); 825 } 826 } 827 } 828 829 private boolean userActivityNoUpdateLocked(long eventTime, int event, int flags, int uid) { 830 if (DEBUG_SPEW) { 831 Slog.d(TAG, "userActivityNoUpdateLocked: eventTime=" + eventTime 832 + ", event=" + event + ", flags=0x" + Integer.toHexString(flags) 833 + ", uid=" + uid); 834 } 835 836 if (eventTime < mLastSleepTime || eventTime < mLastWakeTime 837 || mWakefulness == WAKEFULNESS_ASLEEP || mWakefulness == WAKEFULNESS_DOZING 838 || !mBootCompleted || !mSystemReady) { 839 return false; 840 } 841 842 mNotifier.onUserActivity(event, uid); 843 844 if ((flags & PowerManager.USER_ACTIVITY_FLAG_NO_CHANGE_LIGHTS) != 0) { 845 if (eventTime > mLastUserActivityTimeNoChangeLights 846 && eventTime > mLastUserActivityTime) { 847 mLastUserActivityTimeNoChangeLights = eventTime; 848 mDirty |= DIRTY_USER_ACTIVITY; 849 return true; 850 } 851 } else { 852 if (eventTime > mLastUserActivityTime) { 853 mLastUserActivityTime = eventTime; 854 mDirty |= DIRTY_USER_ACTIVITY; 855 return true; 856 } 857 } 858 return false; 859 } 860 861 private void wakeUpInternal(long eventTime) { 862 synchronized (mLock) { 863 if (wakeUpNoUpdateLocked(eventTime)) { 864 updatePowerStateLocked(); 865 } 866 } 867 } 868 869 private boolean wakeUpNoUpdateLocked(long eventTime) { 870 if (DEBUG_SPEW) { 871 Slog.d(TAG, "wakeUpNoUpdateLocked: eventTime=" + eventTime); 872 } 873 874 if (eventTime < mLastSleepTime || mWakefulness == WAKEFULNESS_AWAKE 875 || !mBootCompleted || !mSystemReady) { 876 return false; 877 } 878 879 switch (mWakefulness) { 880 case WAKEFULNESS_ASLEEP: 881 Slog.i(TAG, "Waking up from sleep..."); 882 break; 883 case WAKEFULNESS_DREAMING: 884 Slog.i(TAG, "Waking up from dream..."); 885 break; 886 case WAKEFULNESS_DOZING: 887 Slog.i(TAG, "Waking up from dozing..."); 888 break; 889 } 890 891 mLastWakeTime = eventTime; 892 mDirty |= DIRTY_WAKEFULNESS; 893 mWakefulness = WAKEFULNESS_AWAKE; 894 setInteractiveStateLocked(true, 0); 895 896 userActivityNoUpdateLocked( 897 eventTime, PowerManager.USER_ACTIVITY_EVENT_OTHER, 0, Process.SYSTEM_UID); 898 return true; 899 } 900 901 private void goToSleepInternal(long eventTime, int reason, int flags) { 902 synchronized (mLock) { 903 if (goToSleepNoUpdateLocked(eventTime, reason, flags)) { 904 updatePowerStateLocked(); 905 } 906 } 907 } 908 909 // This method is called goToSleep for historical reasons but we actually start 910 // dozing before really going to sleep. 911 @SuppressWarnings("deprecation") 912 private boolean goToSleepNoUpdateLocked(long eventTime, int reason, int flags) { 913 if (DEBUG_SPEW) { 914 Slog.d(TAG, "goToSleepNoUpdateLocked: eventTime=" + eventTime 915 + ", reason=" + reason + ", flags=" + flags); 916 } 917 918 if (eventTime < mLastWakeTime 919 || mWakefulness == WAKEFULNESS_ASLEEP 920 || mWakefulness == WAKEFULNESS_DOZING 921 || !mBootCompleted || !mSystemReady) { 922 return false; 923 } 924 925 switch (reason) { 926 case PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN: 927 Slog.i(TAG, "Going to sleep due to device administration policy..."); 928 break; 929 case PowerManager.GO_TO_SLEEP_REASON_TIMEOUT: 930 Slog.i(TAG, "Going to sleep due to screen timeout..."); 931 break; 932 default: 933 Slog.i(TAG, "Going to sleep by user request..."); 934 reason = PowerManager.GO_TO_SLEEP_REASON_USER; 935 break; 936 } 937 938 mLastSleepTime = eventTime; 939 mDirty |= DIRTY_WAKEFULNESS; 940 mWakefulness = WAKEFULNESS_DOZING; 941 mSandmanSummoned = true; 942 setInteractiveStateLocked(false, reason); 943 944 // Report the number of wake locks that will be cleared by going to sleep. 945 int numWakeLocksCleared = 0; 946 final int numWakeLocks = mWakeLocks.size(); 947 for (int i = 0; i < numWakeLocks; i++) { 948 final WakeLock wakeLock = mWakeLocks.get(i); 949 switch (wakeLock.mFlags & PowerManager.WAKE_LOCK_LEVEL_MASK) { 950 case PowerManager.FULL_WAKE_LOCK: 951 case PowerManager.SCREEN_BRIGHT_WAKE_LOCK: 952 case PowerManager.SCREEN_DIM_WAKE_LOCK: 953 numWakeLocksCleared += 1; 954 break; 955 } 956 } 957 EventLog.writeEvent(EventLogTags.POWER_SLEEP_REQUESTED, numWakeLocksCleared); 958 959 // Skip dozing if requested. 960 if ((flags & PowerManager.GO_TO_SLEEP_FLAG_NO_DOZE) != 0) { 961 reallyGoToSleepNoUpdateLocked(eventTime); 962 } 963 return true; 964 } 965 966 private void napInternal(long eventTime) { 967 synchronized (mLock) { 968 if (napNoUpdateLocked(eventTime)) { 969 updatePowerStateLocked(); 970 } 971 } 972 } 973 974 private boolean napNoUpdateLocked(long eventTime) { 975 if (DEBUG_SPEW) { 976 Slog.d(TAG, "napNoUpdateLocked: eventTime=" + eventTime); 977 } 978 979 if (eventTime < mLastWakeTime || mWakefulness != WAKEFULNESS_AWAKE 980 || !mBootCompleted || !mSystemReady) { 981 return false; 982 } 983 984 Slog.i(TAG, "Nap time..."); 985 986 mDirty |= DIRTY_WAKEFULNESS; 987 mWakefulness = WAKEFULNESS_DREAMING; 988 mSandmanSummoned = true; 989 setInteractiveStateLocked(true, 0); 990 return true; 991 } 992 993 // Done dozing, drop everything and go to sleep. 994 private boolean reallyGoToSleepNoUpdateLocked(long eventTime) { 995 if (DEBUG_SPEW) { 996 Slog.d(TAG, "reallyGoToSleepNoUpdateLocked: eventTime=" + eventTime); 997 } 998 999 if (eventTime < mLastWakeTime || mWakefulness == WAKEFULNESS_ASLEEP 1000 || !mBootCompleted || !mSystemReady) { 1001 return false; 1002 } 1003 1004 Slog.i(TAG, "Sleeping..."); 1005 1006 mDirty |= DIRTY_WAKEFULNESS; 1007 mWakefulness = WAKEFULNESS_ASLEEP; 1008 setInteractiveStateLocked(false, PowerManager.GO_TO_SLEEP_REASON_TIMEOUT); 1009 return true; 1010 } 1011 1012 private void setInteractiveStateLocked(boolean interactive, int reason) { 1013 if (mInteractive != interactive) { 1014 finishInteractiveStateChangeLocked(); 1015 1016 mInteractive = interactive; 1017 mInteractiveChanging = true; 1018 mNotifier.onInteractiveStateChangeStarted(interactive, reason); 1019 } 1020 } 1021 1022 private void finishInteractiveStateChangeLocked() { 1023 if (mInteractiveChanging) { 1024 mNotifier.onInteractiveStateChangeFinished(mInteractive); 1025 mInteractiveChanging = false; 1026 } 1027 } 1028 1029 /** 1030 * Updates the global power state based on dirty bits recorded in mDirty. 1031 * 1032 * This is the main function that performs power state transitions. 1033 * We centralize them here so that we can recompute the power state completely 1034 * each time something important changes, and ensure that we do it the same 1035 * way each time. The point is to gather all of the transition logic here. 1036 */ 1037 private void updatePowerStateLocked() { 1038 if (!mSystemReady || mDirty == 0) { 1039 return; 1040 } 1041 if (!Thread.holdsLock(mLock)) { 1042 Slog.wtf(TAG, "Power manager lock was not held when calling updatePowerStateLocked"); 1043 } 1044 1045 // Phase 0: Basic state updates. 1046 updateIsPoweredLocked(mDirty); 1047 updateStayOnLocked(mDirty); 1048 1049 // Phase 1: Update wakefulness. 1050 // Loop because the wake lock and user activity computations are influenced 1051 // by changes in wakefulness. 1052 final long now = SystemClock.uptimeMillis(); 1053 int dirtyPhase2 = 0; 1054 for (;;) { 1055 int dirtyPhase1 = mDirty; 1056 dirtyPhase2 |= dirtyPhase1; 1057 mDirty = 0; 1058 1059 updateWakeLockSummaryLocked(dirtyPhase1); 1060 updateUserActivitySummaryLocked(now, dirtyPhase1); 1061 if (!updateWakefulnessLocked(dirtyPhase1)) { 1062 break; 1063 } 1064 } 1065 1066 // Phase 2: Update dreams and display power state. 1067 updateDreamLocked(dirtyPhase2); 1068 updateDisplayPowerStateLocked(dirtyPhase2); 1069 1070 // Phase 3: Send notifications, if needed. 1071 if (mDisplayReady) { 1072 finishInteractiveStateChangeLocked(); 1073 } 1074 1075 // Phase 4: Update suspend blocker. 1076 // Because we might release the last suspend blocker here, we need to make sure 1077 // we finished everything else first! 1078 updateSuspendBlockerLocked(); 1079 } 1080 1081 /** 1082 * Updates the value of mIsPowered. 1083 * Sets DIRTY_IS_POWERED if a change occurred. 1084 */ 1085 private void updateIsPoweredLocked(int dirty) { 1086 if ((dirty & DIRTY_BATTERY_STATE) != 0) { 1087 final boolean wasPowered = mIsPowered; 1088 final int oldPlugType = mPlugType; 1089 mIsPowered = mBatteryService.isPowered(BatteryManager.BATTERY_PLUGGED_ANY); 1090 mPlugType = mBatteryService.getPlugType(); 1091 mBatteryLevel = mBatteryService.getBatteryLevel(); 1092 1093 if (DEBUG_SPEW) { 1094 Slog.d(TAG, "updateIsPoweredLocked: wasPowered=" + wasPowered 1095 + ", mIsPowered=" + mIsPowered 1096 + ", oldPlugType=" + oldPlugType 1097 + ", mPlugType=" + mPlugType 1098 + ", mBatteryLevel=" + mBatteryLevel); 1099 } 1100 1101 if (wasPowered != mIsPowered || oldPlugType != mPlugType) { 1102 mDirty |= DIRTY_IS_POWERED; 1103 1104 // Update wireless dock detection state. 1105 final boolean dockedOnWirelessCharger = mWirelessChargerDetector.update( 1106 mIsPowered, mPlugType, mBatteryLevel); 1107 1108 // Treat plugging and unplugging the devices as a user activity. 1109 // Users find it disconcerting when they plug or unplug the device 1110 // and it shuts off right away. 1111 // Some devices also wake the device when plugged or unplugged because 1112 // they don't have a charging LED. 1113 final long now = SystemClock.uptimeMillis(); 1114 if (shouldWakeUpWhenPluggedOrUnpluggedLocked(wasPowered, oldPlugType, 1115 dockedOnWirelessCharger)) { 1116 wakeUpNoUpdateLocked(now); 1117 } 1118 userActivityNoUpdateLocked( 1119 now, PowerManager.USER_ACTIVITY_EVENT_OTHER, 0, Process.SYSTEM_UID); 1120 1121 // Tell the notifier whether wireless charging has started so that 1122 // it can provide feedback to the user. 1123 if (dockedOnWirelessCharger) { 1124 mNotifier.onWirelessChargingStarted(); 1125 } 1126 } 1127 } 1128 } 1129 1130 private boolean shouldWakeUpWhenPluggedOrUnpluggedLocked( 1131 boolean wasPowered, int oldPlugType, boolean dockedOnWirelessCharger) { 1132 // Don't wake when powered unless configured to do so. 1133 if (!mWakeUpWhenPluggedOrUnpluggedConfig) { 1134 return false; 1135 } 1136 1137 // Don't wake when undocked from wireless charger. 1138 // See WirelessChargerDetector for justification. 1139 if (wasPowered && !mIsPowered 1140 && oldPlugType == BatteryManager.BATTERY_PLUGGED_WIRELESS) { 1141 return false; 1142 } 1143 1144 // Don't wake when docked on wireless charger unless we are certain of it. 1145 // See WirelessChargerDetector for justification. 1146 if (!wasPowered && mIsPowered 1147 && mPlugType == BatteryManager.BATTERY_PLUGGED_WIRELESS 1148 && !dockedOnWirelessCharger) { 1149 return false; 1150 } 1151 1152 // If already dreaming and becoming powered, then don't wake. 1153 if (mIsPowered && mWakefulness == WAKEFULNESS_DREAMING) { 1154 return false; 1155 } 1156 1157 // Otherwise wake up! 1158 return true; 1159 } 1160 1161 /** 1162 * Updates the value of mStayOn. 1163 * Sets DIRTY_STAY_ON if a change occurred. 1164 */ 1165 private void updateStayOnLocked(int dirty) { 1166 if ((dirty & (DIRTY_BATTERY_STATE | DIRTY_SETTINGS)) != 0) { 1167 final boolean wasStayOn = mStayOn; 1168 if (mStayOnWhilePluggedInSetting != 0 1169 && !isMaximumScreenOffTimeoutFromDeviceAdminEnforcedLocked()) { 1170 mStayOn = mBatteryService.isPowered(mStayOnWhilePluggedInSetting); 1171 } else { 1172 mStayOn = false; 1173 } 1174 1175 if (mStayOn != wasStayOn) { 1176 mDirty |= DIRTY_STAY_ON; 1177 } 1178 } 1179 } 1180 1181 /** 1182 * Updates the value of mWakeLockSummary to summarize the state of all active wake locks. 1183 * Note that most wake-locks are ignored when the system is asleep. 1184 * 1185 * This function must have no other side-effects. 1186 */ 1187 @SuppressWarnings("deprecation") 1188 private void updateWakeLockSummaryLocked(int dirty) { 1189 if ((dirty & (DIRTY_WAKE_LOCKS | DIRTY_WAKEFULNESS)) != 0) { 1190 mWakeLockSummary = 0; 1191 1192 final int numWakeLocks = mWakeLocks.size(); 1193 for (int i = 0; i < numWakeLocks; i++) { 1194 final WakeLock wakeLock = mWakeLocks.get(i); 1195 switch (wakeLock.mFlags & PowerManager.WAKE_LOCK_LEVEL_MASK) { 1196 case PowerManager.PARTIAL_WAKE_LOCK: 1197 mWakeLockSummary |= WAKE_LOCK_CPU; 1198 break; 1199 case PowerManager.FULL_WAKE_LOCK: 1200 mWakeLockSummary |= WAKE_LOCK_SCREEN_BRIGHT | WAKE_LOCK_BUTTON_BRIGHT; 1201 break; 1202 case PowerManager.SCREEN_BRIGHT_WAKE_LOCK: 1203 mWakeLockSummary |= WAKE_LOCK_SCREEN_BRIGHT; 1204 break; 1205 case PowerManager.SCREEN_DIM_WAKE_LOCK: 1206 mWakeLockSummary |= WAKE_LOCK_SCREEN_DIM; 1207 break; 1208 case PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK: 1209 mWakeLockSummary |= WAKE_LOCK_PROXIMITY_SCREEN_OFF; 1210 break; 1211 case PowerManager.DOZE_WAKE_LOCK: 1212 mWakeLockSummary |= WAKE_LOCK_DOZE; 1213 break; 1214 } 1215 } 1216 1217 // Cancel wake locks that make no sense based on the current state. 1218 if (mWakefulness != WAKEFULNESS_DOZING) { 1219 mWakeLockSummary &= ~WAKE_LOCK_DOZE; 1220 } 1221 if (mWakefulness == WAKEFULNESS_ASLEEP 1222 || (mWakeLockSummary & WAKE_LOCK_DOZE) != 0) { 1223 mWakeLockSummary &= ~(WAKE_LOCK_SCREEN_BRIGHT | WAKE_LOCK_SCREEN_DIM 1224 | WAKE_LOCK_BUTTON_BRIGHT); 1225 if (mWakefulness == WAKEFULNESS_ASLEEP) { 1226 mWakeLockSummary &= ~WAKE_LOCK_PROXIMITY_SCREEN_OFF; 1227 } 1228 } 1229 1230 // Infer implied wake locks where necessary based on the current state. 1231 if ((mWakeLockSummary & (WAKE_LOCK_SCREEN_BRIGHT | WAKE_LOCK_SCREEN_DIM)) != 0) { 1232 if (mWakefulness == WAKEFULNESS_AWAKE) { 1233 mWakeLockSummary |= WAKE_LOCK_CPU | WAKE_LOCK_STAY_AWAKE; 1234 } else if (mWakefulness == WAKEFULNESS_DREAMING) { 1235 mWakeLockSummary |= WAKE_LOCK_CPU; 1236 } 1237 } 1238 1239 if (DEBUG_SPEW) { 1240 Slog.d(TAG, "updateWakeLockSummaryLocked: mWakefulness=" 1241 + wakefulnessToString(mWakefulness) 1242 + ", mWakeLockSummary=0x" + Integer.toHexString(mWakeLockSummary)); 1243 } 1244 } 1245 } 1246 1247 /** 1248 * Updates the value of mUserActivitySummary to summarize the user requested 1249 * state of the system such as whether the screen should be bright or dim. 1250 * Note that user activity is ignored when the system is asleep. 1251 * 1252 * This function must have no other side-effects. 1253 */ 1254 private void updateUserActivitySummaryLocked(long now, int dirty) { 1255 // Update the status of the user activity timeout timer. 1256 if ((dirty & (DIRTY_WAKE_LOCKS | DIRTY_USER_ACTIVITY 1257 | DIRTY_WAKEFULNESS | DIRTY_SETTINGS)) != 0) { 1258 mHandler.removeMessages(MSG_USER_ACTIVITY_TIMEOUT); 1259 1260 long nextTimeout = 0; 1261 if (mWakefulness == WAKEFULNESS_AWAKE 1262 || mWakefulness == WAKEFULNESS_DREAMING 1263 || mWakefulness == WAKEFULNESS_DOZING) { 1264 final int screenOffTimeout = getScreenOffTimeoutLocked(); 1265 final int screenDimDuration = getScreenDimDurationLocked(screenOffTimeout); 1266 1267 mUserActivitySummary = 0; 1268 if (mLastUserActivityTime >= mLastWakeTime) { 1269 nextTimeout = mLastUserActivityTime 1270 + screenOffTimeout - screenDimDuration; 1271 if (now < nextTimeout) { 1272 mUserActivitySummary |= USER_ACTIVITY_SCREEN_BRIGHT; 1273 } else { 1274 nextTimeout = mLastUserActivityTime + screenOffTimeout; 1275 if (now < nextTimeout) { 1276 mUserActivitySummary |= USER_ACTIVITY_SCREEN_DIM; 1277 } 1278 } 1279 } 1280 if (mUserActivitySummary == 0 1281 && mLastUserActivityTimeNoChangeLights >= mLastWakeTime) { 1282 nextTimeout = mLastUserActivityTimeNoChangeLights + screenOffTimeout; 1283 if (now < nextTimeout 1284 && mDisplayPowerRequest.wantScreenOnNormal()) { 1285 mUserActivitySummary = mDisplayPowerRequest.screenState 1286 == DisplayPowerRequest.SCREEN_STATE_BRIGHT ? 1287 USER_ACTIVITY_SCREEN_BRIGHT : USER_ACTIVITY_SCREEN_DIM; 1288 } 1289 } 1290 if (mUserActivitySummary != 0) { 1291 Message msg = mHandler.obtainMessage(MSG_USER_ACTIVITY_TIMEOUT); 1292 msg.setAsynchronous(true); 1293 mHandler.sendMessageAtTime(msg, nextTimeout); 1294 } 1295 } else { 1296 mUserActivitySummary = 0; 1297 } 1298 1299 if (DEBUG_SPEW) { 1300 Slog.d(TAG, "updateUserActivitySummaryLocked: mWakefulness=" 1301 + wakefulnessToString(mWakefulness) 1302 + ", mUserActivitySummary=0x" + Integer.toHexString(mUserActivitySummary) 1303 + ", nextTimeout=" + TimeUtils.formatUptime(nextTimeout)); 1304 } 1305 } 1306 } 1307 1308 /** 1309 * Called when a user activity timeout has occurred. 1310 * Simply indicates that something about user activity has changed so that the new 1311 * state can be recomputed when the power state is updated. 1312 * 1313 * This function must have no other side-effects besides setting the dirty 1314 * bit and calling update power state. Wakefulness transitions are handled elsewhere. 1315 */ 1316 private void handleUserActivityTimeout() { // runs on handler thread 1317 synchronized (mLock) { 1318 if (DEBUG_SPEW) { 1319 Slog.d(TAG, "handleUserActivityTimeout"); 1320 } 1321 1322 mDirty |= DIRTY_USER_ACTIVITY; 1323 updatePowerStateLocked(); 1324 } 1325 } 1326 1327 private int getScreenOffTimeoutLocked() { 1328 int timeout = mScreenOffTimeoutSetting; 1329 if (isMaximumScreenOffTimeoutFromDeviceAdminEnforcedLocked()) { 1330 timeout = Math.min(timeout, mMaximumScreenOffTimeoutFromDeviceAdmin); 1331 } 1332 if (mUserActivityTimeoutOverrideFromWindowManager >= 0) { 1333 timeout = (int)Math.min(timeout, mUserActivityTimeoutOverrideFromWindowManager); 1334 } 1335 return Math.max(timeout, mMinimumScreenOffTimeoutConfig); 1336 } 1337 1338 private int getScreenDimDurationLocked(int screenOffTimeout) { 1339 return Math.min(mMaximumScreenDimDurationConfig, 1340 (int)(screenOffTimeout * mMaximumScreenDimRatioConfig)); 1341 } 1342 1343 /** 1344 * Updates the wakefulness of the device. 1345 * 1346 * This is the function that decides whether the device should start dreaming 1347 * based on the current wake locks and user activity state. It may modify mDirty 1348 * if the wakefulness changes. 1349 * 1350 * Returns true if the wakefulness changed and we need to restart power state calculation. 1351 */ 1352 private boolean updateWakefulnessLocked(int dirty) { 1353 boolean changed = false; 1354 if ((dirty & (DIRTY_WAKE_LOCKS | DIRTY_USER_ACTIVITY | DIRTY_BOOT_COMPLETED 1355 | DIRTY_WAKEFULNESS | DIRTY_STAY_ON | DIRTY_PROXIMITY_POSITIVE 1356 | DIRTY_DOCK_STATE)) != 0) { 1357 if (mWakefulness == WAKEFULNESS_AWAKE && isItBedTimeYetLocked()) { 1358 if (DEBUG_SPEW) { 1359 Slog.d(TAG, "updateWakefulnessLocked: Bed time..."); 1360 } 1361 final long time = SystemClock.uptimeMillis(); 1362 if (shouldNapAtBedTimeLocked()) { 1363 changed = napNoUpdateLocked(time); 1364 } else { 1365 changed = goToSleepNoUpdateLocked(time, 1366 PowerManager.GO_TO_SLEEP_REASON_TIMEOUT, 0); 1367 } 1368 } 1369 } 1370 return changed; 1371 } 1372 1373 /** 1374 * Returns true if the device should automatically nap and start dreaming when the user 1375 * activity timeout has expired and it's bedtime. 1376 */ 1377 private boolean shouldNapAtBedTimeLocked() { 1378 return mDreamsActivateOnSleepSetting 1379 || (mDreamsActivateOnDockSetting 1380 && mDockState != Intent.EXTRA_DOCK_STATE_UNDOCKED); 1381 } 1382 1383 /** 1384 * Returns true if the device should go to sleep now. 1385 * Also used when exiting a dream to determine whether we should go back 1386 * to being fully awake or else go to sleep for good. 1387 */ 1388 private boolean isItBedTimeYetLocked() { 1389 return mBootCompleted && !isBeingKeptAwakeLocked(); 1390 } 1391 1392 /** 1393 * Returns true if the device is being kept awake by a wake lock, user activity 1394 * or the stay on while powered setting. We also keep the phone awake when 1395 * the proximity sensor returns a positive result so that the device does not 1396 * lock while in a phone call. This function only controls whether the device 1397 * will go to sleep or dream which is independent of whether it will be allowed 1398 * to suspend. 1399 */ 1400 private boolean isBeingKeptAwakeLocked() { 1401 return mStayOn 1402 || mProximityPositive 1403 || (mWakeLockSummary & WAKE_LOCK_STAY_AWAKE) != 0 1404 || (mUserActivitySummary & (USER_ACTIVITY_SCREEN_BRIGHT 1405 | USER_ACTIVITY_SCREEN_DIM)) != 0; 1406 } 1407 1408 /** 1409 * Determines whether to post a message to the sandman to update the dream state. 1410 */ 1411 private void updateDreamLocked(int dirty) { 1412 if ((dirty & (DIRTY_WAKEFULNESS 1413 | DIRTY_USER_ACTIVITY 1414 | DIRTY_WAKE_LOCKS 1415 | DIRTY_BOOT_COMPLETED 1416 | DIRTY_SETTINGS 1417 | DIRTY_IS_POWERED 1418 | DIRTY_STAY_ON 1419 | DIRTY_PROXIMITY_POSITIVE 1420 | DIRTY_BATTERY_STATE)) != 0) { 1421 scheduleSandmanLocked(); 1422 } 1423 } 1424 1425 private void scheduleSandmanLocked() { 1426 if (!mSandmanScheduled) { 1427 mSandmanScheduled = true; 1428 Message msg = mHandler.obtainMessage(MSG_SANDMAN); 1429 msg.setAsynchronous(true); 1430 mHandler.sendMessage(msg); 1431 } 1432 } 1433 1434 /** 1435 * Called when the device enters or exits a dreaming or dozing state. 1436 * 1437 * We do this asynchronously because we must call out of the power manager to start 1438 * the dream and we don't want to hold our lock while doing so. There is a risk that 1439 * the device will wake or go to sleep in the meantime so we have to handle that case. 1440 */ 1441 private void handleSandman() { // runs on handler thread 1442 // Handle preconditions. 1443 final boolean startDreaming; 1444 final int wakefulness; 1445 synchronized (mLock) { 1446 mSandmanScheduled = false; 1447 wakefulness = mWakefulness; 1448 if (mSandmanSummoned) { 1449 startDreaming = ((wakefulness == WAKEFULNESS_DREAMING && canDreamLocked()) 1450 || wakefulness == WAKEFULNESS_DOZING); 1451 mSandmanSummoned = false; 1452 } else { 1453 startDreaming = false; 1454 } 1455 } 1456 1457 // Start dreaming if needed. 1458 // We only control the dream on the handler thread, so we don't need to worry about 1459 // concurrent attempts to start or stop the dream. 1460 final boolean isDreaming; 1461 if (mDreamManager != null) { 1462 // Restart the dream whenever the sandman is summoned. 1463 if (startDreaming) { 1464 mDreamManager.stopDream(); 1465 mDreamManager.startDream(wakefulness == WAKEFULNESS_DOZING); 1466 } 1467 isDreaming = mDreamManager.isDreaming(); 1468 } else { 1469 isDreaming = false; 1470 } 1471 1472 // Update dream state. 1473 synchronized (mLock) { 1474 // Remember the initial battery level when the dream started. 1475 if (startDreaming && isDreaming) { 1476 mBatteryLevelWhenDreamStarted = mBatteryLevel; 1477 if (wakefulness == WAKEFULNESS_DOZING) { 1478 Slog.i(TAG, "Dozing..."); 1479 } else { 1480 Slog.i(TAG, "Dreaming..."); 1481 } 1482 } 1483 1484 // If preconditions changed, wait for the next iteration to determine 1485 // whether the dream should continue (or be restarted). 1486 if (mSandmanSummoned || mWakefulness != wakefulness) { 1487 return; // wait for next cycle 1488 } 1489 1490 // Determine whether the dream should continue. 1491 if (wakefulness == WAKEFULNESS_DREAMING) { 1492 if (isDreaming && canDreamLocked()) { 1493 if (mDreamsBatteryLevelDrainCutoffConfig >= 0 1494 && mBatteryLevel < mBatteryLevelWhenDreamStarted 1495 - mDreamsBatteryLevelDrainCutoffConfig 1496 && !isBeingKeptAwakeLocked()) { 1497 // If the user activity timeout expired and the battery appears 1498 // to be draining faster than it is charging then stop dreaming 1499 // and go to sleep. 1500 Slog.i(TAG, "Stopping dream because the battery appears to " 1501 + "be draining faster than it is charging. " 1502 + "Battery level when dream started: " 1503 + mBatteryLevelWhenDreamStarted + "%. " 1504 + "Battery level now: " + mBatteryLevel + "%."); 1505 } else { 1506 return; // continue dreaming 1507 } 1508 } 1509 1510 // Dream has ended or will be stopped. Update the power state. 1511 if (isItBedTimeYetLocked()) { 1512 goToSleepNoUpdateLocked(SystemClock.uptimeMillis(), 1513 PowerManager.GO_TO_SLEEP_REASON_TIMEOUT, 0); 1514 updatePowerStateLocked(); 1515 } else { 1516 wakeUpNoUpdateLocked(SystemClock.uptimeMillis()); 1517 updatePowerStateLocked(); 1518 } 1519 } else if (wakefulness == WAKEFULNESS_DOZING) { 1520 if (isDreaming) { 1521 return; // continue dozing 1522 } 1523 1524 // Doze has ended or will be stopped. Update the power state. 1525 reallyGoToSleepNoUpdateLocked(SystemClock.uptimeMillis()); 1526 updatePowerStateLocked(); 1527 } 1528 } 1529 1530 // Stop dream. 1531 if (isDreaming) { 1532 mDreamManager.stopDream(); 1533 } 1534 } 1535 1536 /** 1537 * Returns true if the device is allowed to dream in its current state. 1538 * This function is not called when dozing. 1539 */ 1540 private boolean canDreamLocked() { 1541 if (mWakefulness != WAKEFULNESS_DREAMING 1542 || !mDreamsSupportedConfig 1543 || !mDreamsEnabledSetting 1544 || !mDisplayPowerRequest.wantScreenOnNormal() 1545 || !mBootCompleted) { 1546 return false; 1547 } 1548 if (!isBeingKeptAwakeLocked()) { 1549 if (!mIsPowered && !mDreamsEnabledOnBatteryConfig) { 1550 return false; 1551 } 1552 if (!mIsPowered 1553 && mDreamsBatteryLevelMinimumWhenNotPoweredConfig >= 0 1554 && mBatteryLevel < mDreamsBatteryLevelMinimumWhenNotPoweredConfig) { 1555 return false; 1556 } 1557 if (mIsPowered 1558 && mDreamsBatteryLevelMinimumWhenPoweredConfig >= 0 1559 && mBatteryLevel < mDreamsBatteryLevelMinimumWhenPoweredConfig) { 1560 return false; 1561 } 1562 } 1563 return true; 1564 } 1565 1566 private void handleScreenOnBlockerReleased() { 1567 synchronized (mLock) { 1568 mDirty |= DIRTY_SCREEN_ON_BLOCKER_RELEASED; 1569 updatePowerStateLocked(); 1570 } 1571 } 1572 1573 /** 1574 * Updates the display power state asynchronously. 1575 * When the update is finished, mDisplayReady will be set to true. The display 1576 * controller posts a message to tell us when the actual display power state 1577 * has been updated so we come back here to double-check and finish up. 1578 * 1579 * This function recalculates the display power state each time. 1580 */ 1581 private void updateDisplayPowerStateLocked(int dirty) { 1582 if ((dirty & (DIRTY_WAKE_LOCKS | DIRTY_USER_ACTIVITY | DIRTY_WAKEFULNESS 1583 | DIRTY_ACTUAL_DISPLAY_POWER_STATE_UPDATED | DIRTY_BOOT_COMPLETED 1584 | DIRTY_SETTINGS | DIRTY_SCREEN_ON_BLOCKER_RELEASED)) != 0) { 1585 final int newScreenState = getDesiredScreenPowerStateLocked(); 1586 mDisplayPowerRequest.screenState = newScreenState; 1587 1588 int screenBrightness = mScreenBrightnessSettingDefault; 1589 float screenAutoBrightnessAdjustment = 0.0f; 1590 boolean autoBrightness = (mScreenBrightnessModeSetting == 1591 Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC); 1592 if (isValidBrightness(mScreenBrightnessOverrideFromWindowManager)) { 1593 screenBrightness = mScreenBrightnessOverrideFromWindowManager; 1594 autoBrightness = false; 1595 } else if (isValidBrightness(mTemporaryScreenBrightnessSettingOverride)) { 1596 screenBrightness = mTemporaryScreenBrightnessSettingOverride; 1597 } else if (isValidBrightness(mScreenBrightnessSetting)) { 1598 screenBrightness = mScreenBrightnessSetting; 1599 } 1600 if (autoBrightness) { 1601 screenBrightness = mScreenBrightnessSettingDefault; 1602 if (isValidAutoBrightnessAdjustment( 1603 mTemporaryScreenAutoBrightnessAdjustmentSettingOverride)) { 1604 screenAutoBrightnessAdjustment = 1605 mTemporaryScreenAutoBrightnessAdjustmentSettingOverride; 1606 } else if (isValidAutoBrightnessAdjustment( 1607 mScreenAutoBrightnessAdjustmentSetting)) { 1608 screenAutoBrightnessAdjustment = mScreenAutoBrightnessAdjustmentSetting; 1609 } 1610 } 1611 screenBrightness = Math.max(Math.min(screenBrightness, 1612 mScreenBrightnessSettingMaximum), mScreenBrightnessSettingMinimum); 1613 screenAutoBrightnessAdjustment = Math.max(Math.min( 1614 screenAutoBrightnessAdjustment, 1.0f), -1.0f); 1615 mDisplayPowerRequest.screenBrightness = screenBrightness; 1616 mDisplayPowerRequest.screenAutoBrightnessAdjustment = 1617 screenAutoBrightnessAdjustment; 1618 mDisplayPowerRequest.useAutoBrightness = autoBrightness; 1619 1620 mDisplayPowerRequest.useProximitySensor = shouldUseProximitySensorLocked(); 1621 1622 mDisplayPowerRequest.blockScreenOn = mScreenOnBlocker.isHeld(); 1623 1624 mDisplayReady = mDisplayManagerInternal.requestPowerState(mDisplayPowerRequest, 1625 mRequestWaitForNegativeProximity); 1626 mRequestWaitForNegativeProximity = false; 1627 1628 if (DEBUG_SPEW) { 1629 Slog.d(TAG, "updateScreenStateLocked: mDisplayReady=" + mDisplayReady 1630 + ", newScreenState=" + newScreenState 1631 + ", mWakefulness=" + mWakefulness 1632 + ", mWakeLockSummary=0x" + Integer.toHexString(mWakeLockSummary) 1633 + ", mUserActivitySummary=0x" + Integer.toHexString(mUserActivitySummary) 1634 + ", mBootCompleted=" + mBootCompleted); 1635 } 1636 } 1637 } 1638 1639 private static boolean isValidBrightness(int value) { 1640 return value >= 0 && value <= 255; 1641 } 1642 1643 private static boolean isValidAutoBrightnessAdjustment(float value) { 1644 // Handles NaN by always returning false. 1645 return value >= -1.0f && value <= 1.0f; 1646 } 1647 1648 private int getDesiredScreenPowerStateLocked() { 1649 if (mWakefulness == WAKEFULNESS_ASLEEP) { 1650 return DisplayPowerRequest.SCREEN_STATE_OFF; 1651 } 1652 1653 if ((mWakeLockSummary & WAKE_LOCK_DOZE) != 0) { 1654 return DisplayPowerRequest.SCREEN_STATE_DOZE; 1655 } 1656 1657 if ((mWakeLockSummary & WAKE_LOCK_SCREEN_BRIGHT) != 0 1658 || (mUserActivitySummary & USER_ACTIVITY_SCREEN_BRIGHT) != 0 1659 || !mBootCompleted) { 1660 return DisplayPowerRequest.SCREEN_STATE_BRIGHT; 1661 } 1662 1663 return DisplayPowerRequest.SCREEN_STATE_DIM; 1664 } 1665 1666 private final DisplayManagerInternal.DisplayPowerCallbacks mDisplayPowerCallbacks = 1667 new DisplayManagerInternal.DisplayPowerCallbacks() { 1668 private int mDisplayState = Display.STATE_UNKNOWN; 1669 1670 @Override 1671 public void onStateChanged() { 1672 synchronized (mLock) { 1673 mDirty |= DIRTY_ACTUAL_DISPLAY_POWER_STATE_UPDATED; 1674 updatePowerStateLocked(); 1675 } 1676 } 1677 1678 @Override 1679 public void onProximityPositive() { 1680 synchronized (mLock) { 1681 mProximityPositive = true; 1682 mDirty |= DIRTY_PROXIMITY_POSITIVE; 1683 updatePowerStateLocked(); 1684 } 1685 } 1686 1687 @Override 1688 public void onProximityNegative() { 1689 synchronized (mLock) { 1690 mProximityPositive = false; 1691 mDirty |= DIRTY_PROXIMITY_POSITIVE; 1692 userActivityNoUpdateLocked(SystemClock.uptimeMillis(), 1693 PowerManager.USER_ACTIVITY_EVENT_OTHER, 0, Process.SYSTEM_UID); 1694 updatePowerStateLocked(); 1695 } 1696 } 1697 1698 @Override 1699 public void onDisplayStateChange(int state) { 1700 // This method is only needed to support legacy display blanking behavior 1701 // where the display's power state is coupled to suspend or to the power HAL. 1702 // The order of operations matters here. 1703 synchronized (mLock) { 1704 if (mDisplayState != state) { 1705 mDisplayState = state; 1706 if (state == Display.STATE_OFF) { 1707 if (!mDecoupleHalInteractiveModeFromDisplayConfig) { 1708 setHalInteractiveModeLocked(false); 1709 } 1710 if (!mDecoupleHalAutoSuspendModeFromDisplayConfig) { 1711 setHalAutoSuspendModeLocked(true); 1712 } 1713 } else { 1714 if (!mDecoupleHalAutoSuspendModeFromDisplayConfig) { 1715 setHalAutoSuspendModeLocked(false); 1716 } 1717 if (!mDecoupleHalInteractiveModeFromDisplayConfig) { 1718 setHalInteractiveModeLocked(true); 1719 } 1720 } 1721 } 1722 } 1723 } 1724 1725 @Override 1726 public void acquireSuspendBlocker() { 1727 mDisplaySuspendBlocker.acquire(); 1728 } 1729 1730 @Override 1731 public void releaseSuspendBlocker() { 1732 mDisplaySuspendBlocker.release(); 1733 } 1734 1735 @Override 1736 public String toString() { 1737 synchronized (this) { 1738 return "state=" + Display.stateToString(mDisplayState); 1739 } 1740 } 1741 }; 1742 1743 private boolean shouldUseProximitySensorLocked() { 1744 return (mWakeLockSummary & WAKE_LOCK_PROXIMITY_SCREEN_OFF) != 0; 1745 } 1746 1747 /** 1748 * Updates the suspend blocker that keeps the CPU alive. 1749 * 1750 * This function must have no other side-effects. 1751 */ 1752 private void updateSuspendBlockerLocked() { 1753 final boolean needWakeLockSuspendBlocker = ((mWakeLockSummary & WAKE_LOCK_CPU) != 0); 1754 final boolean needDisplaySuspendBlocker = needDisplaySuspendBlockerLocked(); 1755 final boolean autoSuspend = !needDisplaySuspendBlocker; 1756 1757 // Disable auto-suspend if needed. 1758 if (!autoSuspend) { 1759 if (mDecoupleHalAutoSuspendModeFromDisplayConfig) { 1760 setHalAutoSuspendModeLocked(false); 1761 } 1762 if (mDecoupleHalInteractiveModeFromDisplayConfig) { 1763 setHalInteractiveModeLocked(true); 1764 } 1765 } 1766 1767 // First acquire suspend blockers if needed. 1768 if (needWakeLockSuspendBlocker && !mHoldingWakeLockSuspendBlocker) { 1769 mWakeLockSuspendBlocker.acquire(); 1770 mHoldingWakeLockSuspendBlocker = true; 1771 } 1772 if (needDisplaySuspendBlocker && !mHoldingDisplaySuspendBlocker) { 1773 mDisplaySuspendBlocker.acquire(); 1774 mHoldingDisplaySuspendBlocker = true; 1775 } 1776 1777 // Then release suspend blockers if needed. 1778 if (!needWakeLockSuspendBlocker && mHoldingWakeLockSuspendBlocker) { 1779 mWakeLockSuspendBlocker.release(); 1780 mHoldingWakeLockSuspendBlocker = false; 1781 } 1782 if (!needDisplaySuspendBlocker && mHoldingDisplaySuspendBlocker) { 1783 mDisplaySuspendBlocker.release(); 1784 mHoldingDisplaySuspendBlocker = false; 1785 } 1786 1787 // Enable auto-suspend if needed. 1788 if (autoSuspend) { 1789 if (mDecoupleHalInteractiveModeFromDisplayConfig) { 1790 setHalInteractiveModeLocked(false); 1791 } 1792 if (mDecoupleHalAutoSuspendModeFromDisplayConfig) { 1793 setHalAutoSuspendModeLocked(true); 1794 } 1795 } 1796 } 1797 1798 /** 1799 * Return true if we must keep a suspend blocker active on behalf of the display. 1800 * We do so if the screen is on or is in transition between states. 1801 */ 1802 private boolean needDisplaySuspendBlockerLocked() { 1803 if (!mDisplayReady) { 1804 return true; 1805 } 1806 if (mDisplayPowerRequest.wantScreenOnNormal()) { 1807 // If we asked for the screen to be on but it is off due to the proximity 1808 // sensor then we may suspend but only if the configuration allows it. 1809 // On some hardware it may not be safe to suspend because the proximity 1810 // sensor may not be correctly configured as a wake-up source. 1811 if (!mDisplayPowerRequest.useProximitySensor || !mProximityPositive 1812 || !mSuspendWhenScreenOffDueToProximityConfig) { 1813 return true; 1814 } 1815 } 1816 // Let the system suspend if the screen is off or dozing. 1817 return false; 1818 } 1819 1820 private void setHalAutoSuspendModeLocked(boolean enable) { 1821 if (enable != mHalAutoSuspendModeEnabled) { 1822 if (DEBUG) { 1823 Slog.d(TAG, "Setting HAL auto-suspend mode to " + enable); 1824 } 1825 mHalAutoSuspendModeEnabled = enable; 1826 nativeSetAutoSuspend(enable); 1827 } 1828 } 1829 1830 private void setHalInteractiveModeLocked(boolean enable) { 1831 if (enable != mHalInteractiveModeEnabled) { 1832 if (DEBUG) { 1833 Slog.d(TAG, "Setting HAL interactive mode to " + enable); 1834 } 1835 mHalInteractiveModeEnabled = enable; 1836 nativeSetInteractive(enable); 1837 } 1838 } 1839 1840 private boolean isInteractiveInternal() { 1841 synchronized (mLock) { 1842 return mInteractive; 1843 } 1844 } 1845 1846 private void handleBatteryStateChangedLocked() { 1847 mDirty |= DIRTY_BATTERY_STATE; 1848 updatePowerStateLocked(); 1849 } 1850 1851 private void startWatchingForBootAnimationFinished() { 1852 mHandler.sendEmptyMessage(MSG_CHECK_IF_BOOT_ANIMATION_FINISHED); 1853 } 1854 1855 private void checkIfBootAnimationFinished() { 1856 if (DEBUG) { 1857 Slog.d(TAG, "Check if boot animation finished..."); 1858 } 1859 1860 if (SystemService.isRunning(BOOT_ANIMATION_SERVICE)) { 1861 mHandler.sendEmptyMessageDelayed(MSG_CHECK_IF_BOOT_ANIMATION_FINISHED, 1862 BOOT_ANIMATION_POLL_INTERVAL); 1863 return; 1864 } 1865 1866 synchronized (mLock) { 1867 if (!mBootCompleted) { 1868 Slog.i(TAG, "Boot animation finished."); 1869 handleBootCompletedLocked(); 1870 } 1871 } 1872 } 1873 1874 private void handleBootCompletedLocked() { 1875 final long now = SystemClock.uptimeMillis(); 1876 mBootCompleted = true; 1877 mDirty |= DIRTY_BOOT_COMPLETED; 1878 userActivityNoUpdateLocked( 1879 now, PowerManager.USER_ACTIVITY_EVENT_OTHER, 0, Process.SYSTEM_UID); 1880 updatePowerStateLocked(); 1881 } 1882 1883 private void shutdownOrRebootInternal(final boolean shutdown, final boolean confirm, 1884 final String reason, boolean wait) { 1885 if (mHandler == null || !mSystemReady) { 1886 throw new IllegalStateException("Too early to call shutdown() or reboot()"); 1887 } 1888 1889 Runnable runnable = new Runnable() { 1890 @Override 1891 public void run() { 1892 synchronized (this) { 1893 if (shutdown) { 1894 ShutdownThread.shutdown(mContext, confirm); 1895 } else { 1896 ShutdownThread.reboot(mContext, reason, confirm); 1897 } 1898 } 1899 } 1900 }; 1901 1902 // ShutdownThread must run on a looper capable of displaying the UI. 1903 Message msg = Message.obtain(mHandler, runnable); 1904 msg.setAsynchronous(true); 1905 mHandler.sendMessage(msg); 1906 1907 // PowerManager.reboot() is documented not to return so just wait for the inevitable. 1908 if (wait) { 1909 synchronized (runnable) { 1910 while (true) { 1911 try { 1912 runnable.wait(); 1913 } catch (InterruptedException e) { 1914 } 1915 } 1916 } 1917 } 1918 } 1919 1920 private void crashInternal(final String message) { 1921 Thread t = new Thread("PowerManagerService.crash()") { 1922 @Override 1923 public void run() { 1924 throw new RuntimeException(message); 1925 } 1926 }; 1927 try { 1928 t.start(); 1929 t.join(); 1930 } catch (InterruptedException e) { 1931 Log.wtf(TAG, e); 1932 } 1933 } 1934 1935 private void setStayOnSettingInternal(int val) { 1936 Settings.Global.putInt(mContext.getContentResolver(), 1937 Settings.Global.STAY_ON_WHILE_PLUGGED_IN, val); 1938 } 1939 1940 private void setMaximumScreenOffTimeoutFromDeviceAdminInternal(int timeMs) { 1941 synchronized (mLock) { 1942 mMaximumScreenOffTimeoutFromDeviceAdmin = timeMs; 1943 mDirty |= DIRTY_SETTINGS; 1944 updatePowerStateLocked(); 1945 } 1946 } 1947 1948 private boolean isMaximumScreenOffTimeoutFromDeviceAdminEnforcedLocked() { 1949 return mMaximumScreenOffTimeoutFromDeviceAdmin >= 0 1950 && mMaximumScreenOffTimeoutFromDeviceAdmin < Integer.MAX_VALUE; 1951 } 1952 1953 private void setAttentionLightInternal(boolean on, int color) { 1954 Light light; 1955 synchronized (mLock) { 1956 if (!mSystemReady) { 1957 return; 1958 } 1959 light = mAttentionLight; 1960 } 1961 1962 // Control light outside of lock. 1963 light.setFlashing(color, Light.LIGHT_FLASH_HARDWARE, (on ? 3 : 0), 0); 1964 } 1965 1966 private void setScreenBrightnessOverrideFromWindowManagerInternal(int brightness) { 1967 synchronized (mLock) { 1968 if (mScreenBrightnessOverrideFromWindowManager != brightness) { 1969 mScreenBrightnessOverrideFromWindowManager = brightness; 1970 mDirty |= DIRTY_SETTINGS; 1971 updatePowerStateLocked(); 1972 } 1973 } 1974 } 1975 1976 private void setUserActivityTimeoutOverrideFromWindowManagerInternal(long timeoutMillis) { 1977 synchronized (mLock) { 1978 if (mUserActivityTimeoutOverrideFromWindowManager != timeoutMillis) { 1979 mUserActivityTimeoutOverrideFromWindowManager = timeoutMillis; 1980 mDirty |= DIRTY_SETTINGS; 1981 updatePowerStateLocked(); 1982 } 1983 } 1984 } 1985 1986 private void setTemporaryScreenBrightnessSettingOverrideInternal(int brightness) { 1987 synchronized (mLock) { 1988 if (mTemporaryScreenBrightnessSettingOverride != brightness) { 1989 mTemporaryScreenBrightnessSettingOverride = brightness; 1990 mDirty |= DIRTY_SETTINGS; 1991 updatePowerStateLocked(); 1992 } 1993 } 1994 } 1995 1996 private void setTemporaryScreenAutoBrightnessAdjustmentSettingOverrideInternal(float adj) { 1997 synchronized (mLock) { 1998 // Note: This condition handles NaN because NaN is not equal to any other 1999 // value, including itself. 2000 if (mTemporaryScreenAutoBrightnessAdjustmentSettingOverride != adj) { 2001 mTemporaryScreenAutoBrightnessAdjustmentSettingOverride = adj; 2002 mDirty |= DIRTY_SETTINGS; 2003 updatePowerStateLocked(); 2004 } 2005 } 2006 } 2007 2008 /** 2009 * Low-level function turn the device off immediately, without trying 2010 * to be clean. Most people should use {@link ShutdownThread} for a clean shutdown. 2011 */ 2012 public static void lowLevelShutdown() { 2013 SystemProperties.set("sys.powerctl", "shutdown"); 2014 } 2015 2016 /** 2017 * Low-level function to reboot the device. On success, this function 2018 * doesn't return. If more than 5 seconds passes from the time, 2019 * a reboot is requested, this method returns. 2020 * 2021 * @param reason code to pass to the kernel (e.g. "recovery"), or null. 2022 */ 2023 public static void lowLevelReboot(String reason) { 2024 if (reason == null) { 2025 reason = ""; 2026 } 2027 SystemProperties.set("sys.powerctl", "reboot," + reason); 2028 try { 2029 Thread.sleep(20000); 2030 } catch (InterruptedException e) { 2031 Thread.currentThread().interrupt(); 2032 } 2033 } 2034 2035 @Override // Watchdog.Monitor implementation 2036 public void monitor() { 2037 // Grab and release lock for watchdog monitor to detect deadlocks. 2038 synchronized (mLock) { 2039 } 2040 } 2041 2042 private void dumpInternal(PrintWriter pw) { 2043 pw.println("POWER MANAGER (dumpsys power)\n"); 2044 2045 final WirelessChargerDetector wcd; 2046 synchronized (mLock) { 2047 pw.println("Power Manager State:"); 2048 pw.println(" mDirty=0x" + Integer.toHexString(mDirty)); 2049 pw.println(" mWakefulness=" + wakefulnessToString(mWakefulness)); 2050 pw.println(" mInteractive=" + mInteractive); 2051 pw.println(" mIsPowered=" + mIsPowered); 2052 pw.println(" mPlugType=" + mPlugType); 2053 pw.println(" mBatteryLevel=" + mBatteryLevel); 2054 pw.println(" mBatteryLevelWhenDreamStarted=" + mBatteryLevelWhenDreamStarted); 2055 pw.println(" mDockState=" + mDockState); 2056 pw.println(" mStayOn=" + mStayOn); 2057 pw.println(" mProximityPositive=" + mProximityPositive); 2058 pw.println(" mBootCompleted=" + mBootCompleted); 2059 pw.println(" mSystemReady=" + mSystemReady); 2060 pw.println(" mHalAutoSuspendModeEnabled=" + mHalAutoSuspendModeEnabled); 2061 pw.println(" mHalInteractiveModeEnabled=" + mHalInteractiveModeEnabled); 2062 pw.println(" mWakeLockSummary=0x" + Integer.toHexString(mWakeLockSummary)); 2063 pw.println(" mUserActivitySummary=0x" + Integer.toHexString(mUserActivitySummary)); 2064 pw.println(" mRequestWaitForNegativeProximity=" + mRequestWaitForNegativeProximity); 2065 pw.println(" mSandmanScheduled=" + mSandmanScheduled); 2066 pw.println(" mSandmanSummoned=" + mSandmanSummoned); 2067 pw.println(" mLastWakeTime=" + TimeUtils.formatUptime(mLastWakeTime)); 2068 pw.println(" mLastSleepTime=" + TimeUtils.formatUptime(mLastSleepTime)); 2069 pw.println(" mLastUserActivityTime=" + TimeUtils.formatUptime(mLastUserActivityTime)); 2070 pw.println(" mLastUserActivityTimeNoChangeLights=" 2071 + TimeUtils.formatUptime(mLastUserActivityTimeNoChangeLights)); 2072 pw.println(" mDisplayReady=" + mDisplayReady); 2073 pw.println(" mHoldingWakeLockSuspendBlocker=" + mHoldingWakeLockSuspendBlocker); 2074 pw.println(" mHoldingDisplaySuspendBlocker=" + mHoldingDisplaySuspendBlocker); 2075 2076 pw.println(); 2077 pw.println("Settings and Configuration:"); 2078 pw.println(" mDecoupleHalAutoSuspendModeFromDisplayConfig=" 2079 + mDecoupleHalAutoSuspendModeFromDisplayConfig); 2080 pw.println(" mDecoupleHalInteractiveModeFromDisplayConfig=" 2081 + mDecoupleHalInteractiveModeFromDisplayConfig); 2082 pw.println(" mWakeUpWhenPluggedOrUnpluggedConfig=" 2083 + mWakeUpWhenPluggedOrUnpluggedConfig); 2084 pw.println(" mSuspendWhenScreenOffDueToProximityConfig=" 2085 + mSuspendWhenScreenOffDueToProximityConfig); 2086 pw.println(" mDreamsSupportedConfig=" + mDreamsSupportedConfig); 2087 pw.println(" mDreamsEnabledByDefaultConfig=" + mDreamsEnabledByDefaultConfig); 2088 pw.println(" mDreamsActivatedOnSleepByDefaultConfig=" 2089 + mDreamsActivatedOnSleepByDefaultConfig); 2090 pw.println(" mDreamsActivatedOnDockByDefaultConfig=" 2091 + mDreamsActivatedOnDockByDefaultConfig); 2092 pw.println(" mDreamsEnabledOnBatteryConfig=" 2093 + mDreamsEnabledOnBatteryConfig); 2094 pw.println(" mDreamsBatteryLevelMinimumWhenPoweredConfig=" 2095 + mDreamsBatteryLevelMinimumWhenPoweredConfig); 2096 pw.println(" mDreamsBatteryLevelMinimumWhenNotPoweredConfig=" 2097 + mDreamsBatteryLevelMinimumWhenNotPoweredConfig); 2098 pw.println(" mDreamsBatteryLevelDrainCutoffConfig=" 2099 + mDreamsBatteryLevelDrainCutoffConfig); 2100 pw.println(" mDreamsEnabledSetting=" + mDreamsEnabledSetting); 2101 pw.println(" mDreamsActivateOnSleepSetting=" + mDreamsActivateOnSleepSetting); 2102 pw.println(" mDreamsActivateOnDockSetting=" + mDreamsActivateOnDockSetting); 2103 pw.println(" mMinimumScreenOffTimeoutConfig=" + mMinimumScreenOffTimeoutConfig); 2104 pw.println(" mMaximumScreenDimDurationConfig=" + mMaximumScreenDimDurationConfig); 2105 pw.println(" mMaximumScreenDimRatioConfig=" + mMaximumScreenDimRatioConfig); 2106 pw.println(" mScreenOffTimeoutSetting=" + mScreenOffTimeoutSetting); 2107 pw.println(" mMaximumScreenOffTimeoutFromDeviceAdmin=" 2108 + mMaximumScreenOffTimeoutFromDeviceAdmin + " (enforced=" 2109 + isMaximumScreenOffTimeoutFromDeviceAdminEnforcedLocked() + ")"); 2110 pw.println(" mStayOnWhilePluggedInSetting=" + mStayOnWhilePluggedInSetting); 2111 pw.println(" mScreenBrightnessSetting=" + mScreenBrightnessSetting); 2112 pw.println(" mScreenAutoBrightnessAdjustmentSetting=" 2113 + mScreenAutoBrightnessAdjustmentSetting); 2114 pw.println(" mScreenBrightnessModeSetting=" + mScreenBrightnessModeSetting); 2115 pw.println(" mScreenBrightnessOverrideFromWindowManager=" 2116 + mScreenBrightnessOverrideFromWindowManager); 2117 pw.println(" mUserActivityTimeoutOverrideFromWindowManager=" 2118 + mUserActivityTimeoutOverrideFromWindowManager); 2119 pw.println(" mTemporaryScreenBrightnessSettingOverride=" 2120 + mTemporaryScreenBrightnessSettingOverride); 2121 pw.println(" mTemporaryScreenAutoBrightnessAdjustmentSettingOverride=" 2122 + mTemporaryScreenAutoBrightnessAdjustmentSettingOverride); 2123 pw.println(" mScreenBrightnessSettingMinimum=" + mScreenBrightnessSettingMinimum); 2124 pw.println(" mScreenBrightnessSettingMaximum=" + mScreenBrightnessSettingMaximum); 2125 pw.println(" mScreenBrightnessSettingDefault=" + mScreenBrightnessSettingDefault); 2126 2127 final int screenOffTimeout = getScreenOffTimeoutLocked(); 2128 final int screenDimDuration = getScreenDimDurationLocked(screenOffTimeout); 2129 pw.println(); 2130 pw.println("Screen off timeout: " + screenOffTimeout + " ms"); 2131 pw.println("Screen dim duration: " + screenDimDuration + " ms"); 2132 2133 pw.println(); 2134 pw.println("Wake Locks: size=" + mWakeLocks.size()); 2135 for (WakeLock wl : mWakeLocks) { 2136 pw.println(" " + wl); 2137 } 2138 2139 pw.println(); 2140 pw.println("Suspend Blockers: size=" + mSuspendBlockers.size()); 2141 for (SuspendBlocker sb : mSuspendBlockers) { 2142 pw.println(" " + sb); 2143 } 2144 2145 pw.println(); 2146 pw.println("Screen On Blocker: " + mScreenOnBlocker); 2147 2148 pw.println(); 2149 pw.println("Display Power: " + mDisplayPowerCallbacks); 2150 2151 wcd = mWirelessChargerDetector; 2152 } 2153 2154 if (wcd != null) { 2155 wcd.dump(pw); 2156 } 2157 } 2158 2159 private SuspendBlocker createSuspendBlockerLocked(String name) { 2160 SuspendBlocker suspendBlocker = new SuspendBlockerImpl(name); 2161 mSuspendBlockers.add(suspendBlocker); 2162 return suspendBlocker; 2163 } 2164 2165 private static String wakefulnessToString(int wakefulness) { 2166 switch (wakefulness) { 2167 case WAKEFULNESS_ASLEEP: 2168 return "Asleep"; 2169 case WAKEFULNESS_AWAKE: 2170 return "Awake"; 2171 case WAKEFULNESS_DREAMING: 2172 return "Dreaming"; 2173 case WAKEFULNESS_DOZING: 2174 return "Dozing"; 2175 default: 2176 return Integer.toString(wakefulness); 2177 } 2178 } 2179 2180 private static WorkSource copyWorkSource(WorkSource workSource) { 2181 return workSource != null ? new WorkSource(workSource) : null; 2182 } 2183 2184 private final class BatteryReceiver extends BroadcastReceiver { 2185 @Override 2186 public void onReceive(Context context, Intent intent) { 2187 synchronized (mLock) { 2188 handleBatteryStateChangedLocked(); 2189 } 2190 } 2191 } 2192 2193 private final class BootCompletedReceiver extends BroadcastReceiver { 2194 @Override 2195 public void onReceive(Context context, Intent intent) { 2196 // This is our early signal that the system thinks it has finished booting. 2197 // However, the boot animation may still be running for a few more seconds 2198 // since it is ultimately in charge of when it terminates. 2199 // Defer transitioning into the boot completed state until the animation exits. 2200 // We do this so that the screen does not start to dim prematurely before 2201 // the user has actually had a chance to interact with the device. 2202 startWatchingForBootAnimationFinished(); 2203 } 2204 } 2205 2206 private final class DreamReceiver extends BroadcastReceiver { 2207 @Override 2208 public void onReceive(Context context, Intent intent) { 2209 synchronized (mLock) { 2210 scheduleSandmanLocked(); 2211 } 2212 } 2213 } 2214 2215 private final class UserSwitchedReceiver extends BroadcastReceiver { 2216 @Override 2217 public void onReceive(Context context, Intent intent) { 2218 synchronized (mLock) { 2219 handleSettingsChangedLocked(); 2220 } 2221 } 2222 } 2223 2224 private final class DockReceiver extends BroadcastReceiver { 2225 @Override 2226 public void onReceive(Context context, Intent intent) { 2227 synchronized (mLock) { 2228 int dockState = intent.getIntExtra(Intent.EXTRA_DOCK_STATE, 2229 Intent.EXTRA_DOCK_STATE_UNDOCKED); 2230 if (mDockState != dockState) { 2231 mDockState = dockState; 2232 mDirty |= DIRTY_DOCK_STATE; 2233 updatePowerStateLocked(); 2234 } 2235 } 2236 } 2237 } 2238 2239 private final class SettingsObserver extends ContentObserver { 2240 public SettingsObserver(Handler handler) { 2241 super(handler); 2242 } 2243 2244 @Override 2245 public void onChange(boolean selfChange, Uri uri) { 2246 synchronized (mLock) { 2247 handleSettingsChangedLocked(); 2248 } 2249 } 2250 } 2251 2252 /** 2253 * Handler for asynchronous operations performed by the power manager. 2254 */ 2255 private final class PowerManagerHandler extends Handler { 2256 public PowerManagerHandler(Looper looper) { 2257 super(looper, null, true /*async*/); 2258 } 2259 2260 @Override 2261 public void handleMessage(Message msg) { 2262 switch (msg.what) { 2263 case MSG_USER_ACTIVITY_TIMEOUT: 2264 handleUserActivityTimeout(); 2265 break; 2266 case MSG_SANDMAN: 2267 handleSandman(); 2268 break; 2269 case MSG_SCREEN_ON_BLOCKER_RELEASED: 2270 handleScreenOnBlockerReleased(); 2271 break; 2272 case MSG_CHECK_IF_BOOT_ANIMATION_FINISHED: 2273 checkIfBootAnimationFinished(); 2274 break; 2275 } 2276 } 2277 } 2278 2279 /** 2280 * Represents a wake lock that has been acquired by an application. 2281 */ 2282 private final class WakeLock implements IBinder.DeathRecipient { 2283 public final IBinder mLock; 2284 public int mFlags; 2285 public String mTag; 2286 public final String mPackageName; 2287 public WorkSource mWorkSource; 2288 public final int mOwnerUid; 2289 public final int mOwnerPid; 2290 public boolean mNotifiedAcquired; 2291 2292 public WakeLock(IBinder lock, int flags, String tag, String packageName, 2293 WorkSource workSource, int ownerUid, int ownerPid) { 2294 mLock = lock; 2295 mFlags = flags; 2296 mTag = tag; 2297 mPackageName = packageName; 2298 mWorkSource = copyWorkSource(workSource); 2299 mOwnerUid = ownerUid; 2300 mOwnerPid = ownerPid; 2301 } 2302 2303 @Override 2304 public void binderDied() { 2305 PowerManagerService.this.handleWakeLockDeath(this); 2306 } 2307 2308 public boolean hasSameProperties(int flags, String tag, WorkSource workSource, 2309 int ownerUid, int ownerPid) { 2310 return mFlags == flags 2311 && mTag.equals(tag) 2312 && hasSameWorkSource(workSource) 2313 && mOwnerUid == ownerUid 2314 && mOwnerPid == ownerPid; 2315 } 2316 2317 public void updateProperties(int flags, String tag, String packageName, 2318 WorkSource workSource, int ownerUid, int ownerPid) { 2319 if (!mPackageName.equals(packageName)) { 2320 throw new IllegalStateException("Existing wake lock package name changed: " 2321 + mPackageName + " to " + packageName); 2322 } 2323 if (mOwnerUid != ownerUid) { 2324 throw new IllegalStateException("Existing wake lock uid changed: " 2325 + mOwnerUid + " to " + ownerUid); 2326 } 2327 if (mOwnerPid != ownerPid) { 2328 throw new IllegalStateException("Existing wake lock pid changed: " 2329 + mOwnerPid + " to " + ownerPid); 2330 } 2331 mFlags = flags; 2332 mTag = tag; 2333 updateWorkSource(workSource); 2334 } 2335 2336 public boolean hasSameWorkSource(WorkSource workSource) { 2337 return Objects.equal(mWorkSource, workSource); 2338 } 2339 2340 public void updateWorkSource(WorkSource workSource) { 2341 mWorkSource = copyWorkSource(workSource); 2342 } 2343 2344 @Override 2345 public String toString() { 2346 return getLockLevelString() 2347 + " '" + mTag + "'" + getLockFlagsString() 2348 + " (uid=" + mOwnerUid + ", pid=" + mOwnerPid + ", ws=" + mWorkSource + ")"; 2349 } 2350 2351 @SuppressWarnings("deprecation") 2352 private String getLockLevelString() { 2353 switch (mFlags & PowerManager.WAKE_LOCK_LEVEL_MASK) { 2354 case PowerManager.FULL_WAKE_LOCK: 2355 return "FULL_WAKE_LOCK "; 2356 case PowerManager.SCREEN_BRIGHT_WAKE_LOCK: 2357 return "SCREEN_BRIGHT_WAKE_LOCK "; 2358 case PowerManager.SCREEN_DIM_WAKE_LOCK: 2359 return "SCREEN_DIM_WAKE_LOCK "; 2360 case PowerManager.PARTIAL_WAKE_LOCK: 2361 return "PARTIAL_WAKE_LOCK "; 2362 case PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK: 2363 return "PROXIMITY_SCREEN_OFF_WAKE_LOCK"; 2364 case PowerManager.DOZE_WAKE_LOCK: 2365 return "DOZE_WAKE_LOCK "; 2366 default: 2367 return "??? "; 2368 } 2369 } 2370 2371 private String getLockFlagsString() { 2372 String result = ""; 2373 if ((mFlags & PowerManager.ACQUIRE_CAUSES_WAKEUP) != 0) { 2374 result += " ACQUIRE_CAUSES_WAKEUP"; 2375 } 2376 if ((mFlags & PowerManager.ON_AFTER_RELEASE) != 0) { 2377 result += " ON_AFTER_RELEASE"; 2378 } 2379 return result; 2380 } 2381 } 2382 2383 private final class SuspendBlockerImpl implements SuspendBlocker { 2384 private final String mName; 2385 private int mReferenceCount; 2386 2387 public SuspendBlockerImpl(String name) { 2388 mName = name; 2389 } 2390 2391 @Override 2392 protected void finalize() throws Throwable { 2393 try { 2394 if (mReferenceCount != 0) { 2395 Log.wtf(TAG, "Suspend blocker \"" + mName 2396 + "\" was finalized without being released!"); 2397 mReferenceCount = 0; 2398 nativeReleaseSuspendBlocker(mName); 2399 } 2400 } finally { 2401 super.finalize(); 2402 } 2403 } 2404 2405 @Override 2406 public void acquire() { 2407 synchronized (this) { 2408 mReferenceCount += 1; 2409 if (mReferenceCount == 1) { 2410 if (DEBUG_SPEW) { 2411 Slog.d(TAG, "Acquiring suspend blocker \"" + mName + "\"."); 2412 } 2413 nativeAcquireSuspendBlocker(mName); 2414 } 2415 } 2416 } 2417 2418 @Override 2419 public void release() { 2420 synchronized (this) { 2421 mReferenceCount -= 1; 2422 if (mReferenceCount == 0) { 2423 if (DEBUG_SPEW) { 2424 Slog.d(TAG, "Releasing suspend blocker \"" + mName + "\"."); 2425 } 2426 nativeReleaseSuspendBlocker(mName); 2427 } else if (mReferenceCount < 0) { 2428 Log.wtf(TAG, "Suspend blocker \"" + mName 2429 + "\" was released without being acquired!", new Throwable()); 2430 mReferenceCount = 0; 2431 } 2432 } 2433 } 2434 2435 @Override 2436 public String toString() { 2437 synchronized (this) { 2438 return mName + ": ref count=" + mReferenceCount; 2439 } 2440 } 2441 } 2442 2443 private final class ScreenOnBlockerImpl implements ScreenOnBlocker { 2444 private int mNestCount; 2445 2446 public boolean isHeld() { 2447 synchronized (this) { 2448 return mNestCount != 0; 2449 } 2450 } 2451 2452 @Override 2453 public void acquire() { 2454 synchronized (this) { 2455 mNestCount += 1; 2456 if (DEBUG) { 2457 Slog.d(TAG, "Screen on blocked: mNestCount=" + mNestCount); 2458 } 2459 } 2460 } 2461 2462 @Override 2463 public void release() { 2464 synchronized (this) { 2465 mNestCount -= 1; 2466 if (mNestCount < 0) { 2467 Log.wtf(TAG, "Screen on blocker was released without being acquired!", 2468 new Throwable()); 2469 mNestCount = 0; 2470 } 2471 if (mNestCount == 0) { 2472 mHandler.sendEmptyMessage(MSG_SCREEN_ON_BLOCKER_RELEASED); 2473 } 2474 if (DEBUG) { 2475 Slog.d(TAG, "Screen on unblocked: mNestCount=" + mNestCount); 2476 } 2477 } 2478 } 2479 2480 @Override 2481 public String toString() { 2482 synchronized (this) { 2483 return "held=" + (mNestCount != 0) + ", mNestCount=" + mNestCount; 2484 } 2485 } 2486 } 2487 2488 private final class BinderService extends IPowerManager.Stub { 2489 @Override // Binder call 2490 public void acquireWakeLockWithUid(IBinder lock, int flags, String tag, 2491 String packageName, int uid) { 2492 acquireWakeLock(lock, flags, tag, packageName, new WorkSource(uid)); 2493 } 2494 2495 @Override // Binder call 2496 public void acquireWakeLock(IBinder lock, int flags, String tag, String packageName, 2497 WorkSource ws) { 2498 if (lock == null) { 2499 throw new IllegalArgumentException("lock must not be null"); 2500 } 2501 if (packageName == null) { 2502 throw new IllegalArgumentException("packageName must not be null"); 2503 } 2504 PowerManager.validateWakeLockParameters(flags, tag); 2505 2506 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WAKE_LOCK, null); 2507 if (ws != null && ws.size() != 0) { 2508 mContext.enforceCallingOrSelfPermission( 2509 android.Manifest.permission.UPDATE_DEVICE_STATS, null); 2510 } else { 2511 ws = null; 2512 } 2513 2514 final int uid = Binder.getCallingUid(); 2515 final int pid = Binder.getCallingPid(); 2516 final long ident = Binder.clearCallingIdentity(); 2517 try { 2518 acquireWakeLockInternal(lock, flags, tag, packageName, ws, uid, pid); 2519 } finally { 2520 Binder.restoreCallingIdentity(ident); 2521 } 2522 } 2523 2524 @Override // Binder call 2525 public void releaseWakeLock(IBinder lock, int flags) { 2526 if (lock == null) { 2527 throw new IllegalArgumentException("lock must not be null"); 2528 } 2529 2530 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WAKE_LOCK, null); 2531 2532 final long ident = Binder.clearCallingIdentity(); 2533 try { 2534 releaseWakeLockInternal(lock, flags); 2535 } finally { 2536 Binder.restoreCallingIdentity(ident); 2537 } 2538 } 2539 2540 @Override // Binder call 2541 public void updateWakeLockUids(IBinder lock, int[] uids) { 2542 WorkSource ws = null; 2543 2544 if (uids != null) { 2545 ws = new WorkSource(); 2546 // XXX should WorkSource have a way to set uids as an int[] instead of adding them 2547 // one at a time? 2548 for (int i = 0; i < uids.length; i++) { 2549 ws.add(uids[i]); 2550 } 2551 } 2552 updateWakeLockWorkSource(lock, ws); 2553 } 2554 2555 @Override // Binder call 2556 public void updateWakeLockWorkSource(IBinder lock, WorkSource ws) { 2557 if (lock == null) { 2558 throw new IllegalArgumentException("lock must not be null"); 2559 } 2560 2561 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WAKE_LOCK, null); 2562 if (ws != null && ws.size() != 0) { 2563 mContext.enforceCallingOrSelfPermission( 2564 android.Manifest.permission.UPDATE_DEVICE_STATS, null); 2565 } else { 2566 ws = null; 2567 } 2568 2569 final long ident = Binder.clearCallingIdentity(); 2570 try { 2571 updateWakeLockWorkSourceInternal(lock, ws); 2572 } finally { 2573 Binder.restoreCallingIdentity(ident); 2574 } 2575 } 2576 2577 @Override // Binder call 2578 public boolean isWakeLockLevelSupported(int level) { 2579 final long ident = Binder.clearCallingIdentity(); 2580 try { 2581 return isWakeLockLevelSupportedInternal(level); 2582 } finally { 2583 Binder.restoreCallingIdentity(ident); 2584 } 2585 } 2586 2587 @Override // Binder call 2588 public void userActivity(long eventTime, int event, int flags) { 2589 final long now = SystemClock.uptimeMillis(); 2590 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER) 2591 != PackageManager.PERMISSION_GRANTED) { 2592 // Once upon a time applications could call userActivity(). 2593 // Now we require the DEVICE_POWER permission. Log a warning and ignore the 2594 // request instead of throwing a SecurityException so we don't break old apps. 2595 synchronized (mLock) { 2596 if (now >= mLastWarningAboutUserActivityPermission + (5 * 60 * 1000)) { 2597 mLastWarningAboutUserActivityPermission = now; 2598 Slog.w(TAG, "Ignoring call to PowerManager.userActivity() because the " 2599 + "caller does not have DEVICE_POWER permission. " 2600 + "Please fix your app! " 2601 + " pid=" + Binder.getCallingPid() 2602 + " uid=" + Binder.getCallingUid()); 2603 } 2604 } 2605 return; 2606 } 2607 2608 if (eventTime > SystemClock.uptimeMillis()) { 2609 throw new IllegalArgumentException("event time must not be in the future"); 2610 } 2611 2612 final int uid = Binder.getCallingUid(); 2613 final long ident = Binder.clearCallingIdentity(); 2614 try { 2615 userActivityInternal(eventTime, event, flags, uid); 2616 } finally { 2617 Binder.restoreCallingIdentity(ident); 2618 } 2619 } 2620 2621 @Override // Binder call 2622 public void wakeUp(long eventTime) { 2623 if (eventTime > SystemClock.uptimeMillis()) { 2624 throw new IllegalArgumentException("event time must not be in the future"); 2625 } 2626 2627 mContext.enforceCallingOrSelfPermission( 2628 android.Manifest.permission.DEVICE_POWER, null); 2629 2630 final long ident = Binder.clearCallingIdentity(); 2631 try { 2632 wakeUpInternal(eventTime); 2633 } finally { 2634 Binder.restoreCallingIdentity(ident); 2635 } 2636 } 2637 2638 @Override // Binder call 2639 public void goToSleep(long eventTime, int reason, int flags) { 2640 if (eventTime > SystemClock.uptimeMillis()) { 2641 throw new IllegalArgumentException("event time must not be in the future"); 2642 } 2643 2644 mContext.enforceCallingOrSelfPermission( 2645 android.Manifest.permission.DEVICE_POWER, null); 2646 2647 final long ident = Binder.clearCallingIdentity(); 2648 try { 2649 goToSleepInternal(eventTime, reason, flags); 2650 } finally { 2651 Binder.restoreCallingIdentity(ident); 2652 } 2653 } 2654 2655 @Override // Binder call 2656 public void nap(long eventTime) { 2657 if (eventTime > SystemClock.uptimeMillis()) { 2658 throw new IllegalArgumentException("event time must not be in the future"); 2659 } 2660 2661 mContext.enforceCallingOrSelfPermission( 2662 android.Manifest.permission.DEVICE_POWER, null); 2663 2664 final long ident = Binder.clearCallingIdentity(); 2665 try { 2666 napInternal(eventTime); 2667 } finally { 2668 Binder.restoreCallingIdentity(ident); 2669 } 2670 } 2671 2672 @Override // Binder call 2673 public boolean isInteractive() { 2674 final long ident = Binder.clearCallingIdentity(); 2675 try { 2676 return isInteractiveInternal(); 2677 } finally { 2678 Binder.restoreCallingIdentity(ident); 2679 } 2680 } 2681 2682 /** 2683 * Reboots the device. 2684 * 2685 * @param confirm If true, shows a reboot confirmation dialog. 2686 * @param reason The reason for the reboot, or null if none. 2687 * @param wait If true, this call waits for the reboot to complete and does not return. 2688 */ 2689 @Override // Binder call 2690 public void reboot(boolean confirm, String reason, boolean wait) { 2691 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.REBOOT, null); 2692 2693 final long ident = Binder.clearCallingIdentity(); 2694 try { 2695 shutdownOrRebootInternal(false, confirm, reason, wait); 2696 } finally { 2697 Binder.restoreCallingIdentity(ident); 2698 } 2699 } 2700 2701 /** 2702 * Shuts down the device. 2703 * 2704 * @param confirm If true, shows a shutdown confirmation dialog. 2705 * @param wait If true, this call waits for the shutdown to complete and does not return. 2706 */ 2707 @Override // Binder call 2708 public void shutdown(boolean confirm, boolean wait) { 2709 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.REBOOT, null); 2710 2711 final long ident = Binder.clearCallingIdentity(); 2712 try { 2713 shutdownOrRebootInternal(true, confirm, null, wait); 2714 } finally { 2715 Binder.restoreCallingIdentity(ident); 2716 } 2717 } 2718 2719 /** 2720 * Crash the runtime (causing a complete restart of the Android framework). 2721 * Requires REBOOT permission. Mostly for testing. Should not return. 2722 */ 2723 @Override // Binder call 2724 public void crash(String message) { 2725 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.REBOOT, null); 2726 2727 final long ident = Binder.clearCallingIdentity(); 2728 try { 2729 crashInternal(message); 2730 } finally { 2731 Binder.restoreCallingIdentity(ident); 2732 } 2733 } 2734 2735 /** 2736 * Set the setting that determines whether the device stays on when plugged in. 2737 * The argument is a bit string, with each bit specifying a power source that, 2738 * when the device is connected to that source, causes the device to stay on. 2739 * See {@link android.os.BatteryManager} for the list of power sources that 2740 * can be specified. Current values include 2741 * {@link android.os.BatteryManager#BATTERY_PLUGGED_AC} 2742 * and {@link android.os.BatteryManager#BATTERY_PLUGGED_USB} 2743 * 2744 * Used by "adb shell svc power stayon ..." 2745 * 2746 * @param val an {@code int} containing the bits that specify which power sources 2747 * should cause the device to stay on. 2748 */ 2749 @Override // Binder call 2750 public void setStayOnSetting(int val) { 2751 mContext.enforceCallingOrSelfPermission( 2752 android.Manifest.permission.WRITE_SETTINGS, null); 2753 2754 final long ident = Binder.clearCallingIdentity(); 2755 try { 2756 setStayOnSettingInternal(val); 2757 } finally { 2758 Binder.restoreCallingIdentity(ident); 2759 } 2760 } 2761 2762 /** 2763 * Used by device administration to set the maximum screen off timeout. 2764 * 2765 * This method must only be called by the device administration policy manager. 2766 */ 2767 @Override // Binder call 2768 public void setMaximumScreenOffTimeoutFromDeviceAdmin(int timeMs) { 2769 final long ident = Binder.clearCallingIdentity(); 2770 try { 2771 setMaximumScreenOffTimeoutFromDeviceAdminInternal(timeMs); 2772 } finally { 2773 Binder.restoreCallingIdentity(ident); 2774 } 2775 } 2776 2777 /** 2778 * Used by the settings application and brightness control widgets to 2779 * temporarily override the current screen brightness setting so that the 2780 * user can observe the effect of an intended settings change without applying 2781 * it immediately. 2782 * 2783 * The override will be canceled when the setting value is next updated. 2784 * 2785 * @param brightness The overridden brightness. 2786 * 2787 * @see android.provider.Settings.System#SCREEN_BRIGHTNESS 2788 */ 2789 @Override // Binder call 2790 public void setTemporaryScreenBrightnessSettingOverride(int brightness) { 2791 mContext.enforceCallingOrSelfPermission( 2792 android.Manifest.permission.DEVICE_POWER, null); 2793 2794 final long ident = Binder.clearCallingIdentity(); 2795 try { 2796 setTemporaryScreenBrightnessSettingOverrideInternal(brightness); 2797 } finally { 2798 Binder.restoreCallingIdentity(ident); 2799 } 2800 } 2801 2802 /** 2803 * Used by the settings application and brightness control widgets to 2804 * temporarily override the current screen auto-brightness adjustment setting so that the 2805 * user can observe the effect of an intended settings change without applying 2806 * it immediately. 2807 * 2808 * The override will be canceled when the setting value is next updated. 2809 * 2810 * @param adj The overridden brightness, or Float.NaN to disable the override. 2811 * 2812 * @see android.provider.Settings.System#SCREEN_AUTO_BRIGHTNESS_ADJ 2813 */ 2814 @Override // Binder call 2815 public void setTemporaryScreenAutoBrightnessAdjustmentSettingOverride(float adj) { 2816 mContext.enforceCallingOrSelfPermission( 2817 android.Manifest.permission.DEVICE_POWER, null); 2818 2819 final long ident = Binder.clearCallingIdentity(); 2820 try { 2821 setTemporaryScreenAutoBrightnessAdjustmentSettingOverrideInternal(adj); 2822 } finally { 2823 Binder.restoreCallingIdentity(ident); 2824 } 2825 } 2826 2827 /** 2828 * Used by the phone application to make the attention LED flash when ringing. 2829 */ 2830 @Override // Binder call 2831 public void setAttentionLight(boolean on, int color) { 2832 mContext.enforceCallingOrSelfPermission( 2833 android.Manifest.permission.DEVICE_POWER, null); 2834 2835 final long ident = Binder.clearCallingIdentity(); 2836 try { 2837 setAttentionLightInternal(on, color); 2838 } finally { 2839 Binder.restoreCallingIdentity(ident); 2840 } 2841 } 2842 2843 @Override // Binder call 2844 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 2845 if (mContext.checkCallingOrSelfPermission(Manifest.permission.DUMP) 2846 != PackageManager.PERMISSION_GRANTED) { 2847 pw.println("Permission Denial: can't dump PowerManager from from pid=" 2848 + Binder.getCallingPid() 2849 + ", uid=" + Binder.getCallingUid()); 2850 return; 2851 } 2852 2853 final long ident = Binder.clearCallingIdentity(); 2854 try { 2855 dumpInternal(pw); 2856 } finally { 2857 Binder.restoreCallingIdentity(ident); 2858 } 2859 } 2860 } 2861 2862 private final class LocalService extends PowerManagerInternal { 2863 /** 2864 * Used by the window manager to override the screen brightness based on the 2865 * current foreground activity. 2866 * 2867 * This method must only be called by the window manager. 2868 * 2869 * @param brightness The overridden brightness, or -1 to disable the override. 2870 */ 2871 @Override 2872 public void setScreenBrightnessOverrideFromWindowManager(int brightness) { 2873 mContext.enforceCallingOrSelfPermission( 2874 android.Manifest.permission.DEVICE_POWER, null); 2875 2876 final long ident = Binder.clearCallingIdentity(); 2877 try { 2878 setScreenBrightnessOverrideFromWindowManagerInternal(brightness); 2879 } finally { 2880 Binder.restoreCallingIdentity(ident); 2881 } 2882 } 2883 2884 /** 2885 * Used by the window manager to override the button brightness based on the 2886 * current foreground activity. 2887 * 2888 * This method must only be called by the window manager. 2889 * 2890 * @param brightness The overridden brightness, or -1 to disable the override. 2891 */ 2892 @Override 2893 public void setButtonBrightnessOverrideFromWindowManager(int brightness) { 2894 // Do nothing. 2895 // Button lights are not currently supported in the new implementation. 2896 mContext.enforceCallingOrSelfPermission( 2897 android.Manifest.permission.DEVICE_POWER, null); 2898 } 2899 2900 /** 2901 * Used by the window manager to override the user activity timeout based on the 2902 * current foreground activity. It can only be used to make the timeout shorter 2903 * than usual, not longer. 2904 * 2905 * This method must only be called by the window manager. 2906 * 2907 * @param timeoutMillis The overridden timeout, or -1 to disable the override. 2908 */ 2909 @Override 2910 public void setUserActivityTimeoutOverrideFromWindowManager(long timeoutMillis) { 2911 mContext.enforceCallingOrSelfPermission( 2912 android.Manifest.permission.DEVICE_POWER, null); 2913 2914 final long ident = Binder.clearCallingIdentity(); 2915 try { 2916 setUserActivityTimeoutOverrideFromWindowManagerInternal(timeoutMillis); 2917 } finally { 2918 Binder.restoreCallingIdentity(ident); 2919 } 2920 } 2921 2922 @Override 2923 public void setPolicy(WindowManagerPolicy policy) { 2924 PowerManagerService.this.setPolicy(policy); 2925 } 2926 } 2927} 2928