PowerManagerService.java revision a02f98239ea683b802ede31382f51eb88eda05d3
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 android.app.ActivityManager; 20import android.util.SparseIntArray; 21import com.android.internal.app.IAppOpsService; 22import com.android.internal.app.IBatteryStats; 23import com.android.internal.os.BackgroundThread; 24import com.android.server.EventLogTags; 25import com.android.server.ServiceThread; 26import com.android.server.SystemService; 27import com.android.server.am.BatteryStatsService; 28import com.android.server.lights.Light; 29import com.android.server.lights.LightsManager; 30import com.android.server.Watchdog; 31 32import android.Manifest; 33import android.app.AppOpsManager; 34import android.content.BroadcastReceiver; 35import android.content.ContentResolver; 36import android.content.Context; 37import android.content.Intent; 38import android.content.IntentFilter; 39import android.content.pm.PackageManager; 40import android.content.res.Resources; 41import android.database.ContentObserver; 42import android.hardware.SensorManager; 43import android.hardware.SystemSensorManager; 44import android.hardware.display.DisplayManagerInternal; 45import android.hardware.display.DisplayManagerInternal.DisplayPowerRequest; 46import android.net.Uri; 47import android.os.BatteryManager; 48import android.os.BatteryManagerInternal; 49import android.os.Binder; 50import android.os.Handler; 51import android.os.IBinder; 52import android.os.IPowerManager; 53import android.os.Looper; 54import android.os.Message; 55import android.os.PowerManager; 56import android.os.PowerManagerInternal; 57import android.os.Process; 58import android.os.RemoteException; 59import android.os.SystemClock; 60import android.os.SystemProperties; 61import android.os.Trace; 62import android.os.UserHandle; 63import android.os.WorkSource; 64import android.provider.Settings; 65import android.service.dreams.DreamManagerInternal; 66import android.util.EventLog; 67import android.util.Slog; 68import android.util.TimeUtils; 69import android.view.Display; 70import android.view.WindowManagerPolicy; 71 72import java.io.FileDescriptor; 73import java.io.PrintWriter; 74import java.util.ArrayList; 75import java.util.Arrays; 76 77import libcore.util.Objects; 78 79import static android.os.PowerManagerInternal.POWER_HINT_INTERACTION; 80import static android.os.PowerManagerInternal.WAKEFULNESS_ASLEEP; 81import static android.os.PowerManagerInternal.WAKEFULNESS_AWAKE; 82import static android.os.PowerManagerInternal.WAKEFULNESS_DREAMING; 83import static android.os.PowerManagerInternal.WAKEFULNESS_DOZING; 84 85/** 86 * The power manager service is responsible for coordinating power management 87 * functions on the device. 88 */ 89public final class PowerManagerService extends SystemService 90 implements Watchdog.Monitor { 91 private static final String TAG = "PowerManagerService"; 92 93 private static final boolean DEBUG = false; 94 private static final boolean DEBUG_SPEW = DEBUG && true; 95 96 // Message: Sent when a user activity timeout occurs to update the power state. 97 private static final int MSG_USER_ACTIVITY_TIMEOUT = 1; 98 // Message: Sent when the device enters or exits a dreaming or dozing state. 99 private static final int MSG_SANDMAN = 2; 100 // Message: Sent when the screen brightness boost expires. 101 private static final int MSG_SCREEN_BRIGHTNESS_BOOST_TIMEOUT = 3; 102 103 // Dirty bit: mWakeLocks changed 104 private static final int DIRTY_WAKE_LOCKS = 1 << 0; 105 // Dirty bit: mWakefulness changed 106 private static final int DIRTY_WAKEFULNESS = 1 << 1; 107 // Dirty bit: user activity was poked or may have timed out 108 private static final int DIRTY_USER_ACTIVITY = 1 << 2; 109 // Dirty bit: actual display power state was updated asynchronously 110 private static final int DIRTY_ACTUAL_DISPLAY_POWER_STATE_UPDATED = 1 << 3; 111 // Dirty bit: mBootCompleted changed 112 private static final int DIRTY_BOOT_COMPLETED = 1 << 4; 113 // Dirty bit: settings changed 114 private static final int DIRTY_SETTINGS = 1 << 5; 115 // Dirty bit: mIsPowered changed 116 private static final int DIRTY_IS_POWERED = 1 << 6; 117 // Dirty bit: mStayOn changed 118 private static final int DIRTY_STAY_ON = 1 << 7; 119 // Dirty bit: battery state changed 120 private static final int DIRTY_BATTERY_STATE = 1 << 8; 121 // Dirty bit: proximity state changed 122 private static final int DIRTY_PROXIMITY_POSITIVE = 1 << 9; 123 // Dirty bit: dock state changed 124 private static final int DIRTY_DOCK_STATE = 1 << 10; 125 // Dirty bit: brightness boost changed 126 private static final int DIRTY_SCREEN_BRIGHTNESS_BOOST = 1 << 11; 127 128 // Summarizes the state of all active wakelocks. 129 private static final int WAKE_LOCK_CPU = 1 << 0; 130 private static final int WAKE_LOCK_SCREEN_BRIGHT = 1 << 1; 131 private static final int WAKE_LOCK_SCREEN_DIM = 1 << 2; 132 private static final int WAKE_LOCK_BUTTON_BRIGHT = 1 << 3; 133 private static final int WAKE_LOCK_PROXIMITY_SCREEN_OFF = 1 << 4; 134 private static final int WAKE_LOCK_STAY_AWAKE = 1 << 5; // only set if already awake 135 private static final int WAKE_LOCK_DOZE = 1 << 6; 136 private static final int WAKE_LOCK_DRAW = 1 << 7; 137 138 // Summarizes the user activity state. 139 private static final int USER_ACTIVITY_SCREEN_BRIGHT = 1 << 0; 140 private static final int USER_ACTIVITY_SCREEN_DIM = 1 << 1; 141 private static final int USER_ACTIVITY_SCREEN_DREAM = 1 << 2; 142 143 // Default timeout in milliseconds. This is only used until the settings 144 // provider populates the actual default value (R.integer.def_screen_off_timeout). 145 private static final int DEFAULT_SCREEN_OFF_TIMEOUT = 15 * 1000; 146 private static final int DEFAULT_SLEEP_TIMEOUT = -1; 147 148 // Screen brightness boost timeout. 149 // Hardcoded for now until we decide what the right policy should be. 150 // This should perhaps be a setting. 151 private static final int SCREEN_BRIGHTNESS_BOOST_TIMEOUT = 5 * 1000; 152 153 // Power hints defined in hardware/libhardware/include/hardware/power.h. 154 private static final int POWER_HINT_LOW_POWER = 5; 155 156 // Power features defined in hardware/libhardware/include/hardware/power.h. 157 private static final int POWER_FEATURE_DOUBLE_TAP_TO_WAKE = 1; 158 159 // Default setting for double tap to wake. 160 private static final int DEFAULT_DOUBLE_TAP_TO_WAKE = 0; 161 162 private final Context mContext; 163 private final ServiceThread mHandlerThread; 164 private final PowerManagerHandler mHandler; 165 166 private LightsManager mLightsManager; 167 private BatteryManagerInternal mBatteryManagerInternal; 168 private DisplayManagerInternal mDisplayManagerInternal; 169 private IBatteryStats mBatteryStats; 170 private IAppOpsService mAppOps; 171 private WindowManagerPolicy mPolicy; 172 private Notifier mNotifier; 173 private WirelessChargerDetector mWirelessChargerDetector; 174 private SettingsObserver mSettingsObserver; 175 private DreamManagerInternal mDreamManager; 176 private Light mAttentionLight; 177 178 private final Object mLock = new Object(); 179 180 // A bitfield that indicates what parts of the power state have 181 // changed and need to be recalculated. 182 private int mDirty; 183 184 // Indicates whether the device is awake or asleep or somewhere in between. 185 // This is distinct from the screen power state, which is managed separately. 186 private int mWakefulness; 187 private boolean mWakefulnessChanging; 188 189 // True if the sandman has just been summoned for the first time since entering the 190 // dreaming or dozing state. Indicates whether a new dream should begin. 191 private boolean mSandmanSummoned; 192 193 // True if MSG_SANDMAN has been scheduled. 194 private boolean mSandmanScheduled; 195 196 // Table of all suspend blockers. 197 // There should only be a few of these. 198 private final ArrayList<SuspendBlocker> mSuspendBlockers = new ArrayList<SuspendBlocker>(); 199 200 // Table of all wake locks acquired by applications. 201 private final ArrayList<WakeLock> mWakeLocks = new ArrayList<WakeLock>(); 202 203 // A bitfield that summarizes the state of all active wakelocks. 204 private int mWakeLockSummary; 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 // Timestamp of last interactive power hint. 219 private long mLastInteractivePowerHintTime; 220 221 // Timestamp of the last screen brightness boost. 222 private long mLastScreenBrightnessBoostTime; 223 private boolean mScreenBrightnessBoostInProgress; 224 225 // A bitfield that summarizes the effect of the user activity timer. 226 private int mUserActivitySummary; 227 228 // The desired display power state. The actual state may lag behind the 229 // requested because it is updated asynchronously by the display power controller. 230 private final DisplayPowerRequest mDisplayPowerRequest = new DisplayPowerRequest(); 231 232 // True if the display power state has been fully applied, which means the display 233 // is actually on or actually off or whatever was requested. 234 private boolean mDisplayReady; 235 236 // The suspend blocker used to keep the CPU alive when an application has acquired 237 // a wake lock. 238 private final SuspendBlocker mWakeLockSuspendBlocker; 239 240 // True if the wake lock suspend blocker has been acquired. 241 private boolean mHoldingWakeLockSuspendBlocker; 242 243 // The suspend blocker used to keep the CPU alive when the display is on, the 244 // display is getting ready or there is user activity (in which case the display 245 // must be on). 246 private final SuspendBlocker mDisplaySuspendBlocker; 247 248 // True if the display suspend blocker has been acquired. 249 private boolean mHoldingDisplaySuspendBlocker; 250 251 // True if systemReady() has been called. 252 private boolean mSystemReady; 253 254 // True if boot completed occurred. We keep the screen on until this happens. 255 private boolean mBootCompleted; 256 257 // True if auto-suspend mode is enabled. 258 // Refer to autosuspend.h. 259 private boolean mHalAutoSuspendModeEnabled; 260 261 // True if interactive mode is enabled. 262 // Refer to power.h. 263 private boolean mHalInteractiveModeEnabled; 264 265 // True if the device is plugged into a power source. 266 private boolean mIsPowered; 267 268 // The current plug type, such as BatteryManager.BATTERY_PLUGGED_WIRELESS. 269 private int mPlugType; 270 271 // The current battery level percentage. 272 private int mBatteryLevel; 273 274 // The battery level percentage at the time the dream started. 275 // This is used to terminate a dream and go to sleep if the battery is 276 // draining faster than it is charging and the user activity timeout has expired. 277 private int mBatteryLevelWhenDreamStarted; 278 279 // The current dock state. 280 private int mDockState = Intent.EXTRA_DOCK_STATE_UNDOCKED; 281 282 // True to decouple auto-suspend mode from the display state. 283 private boolean mDecoupleHalAutoSuspendModeFromDisplayConfig; 284 285 // True to decouple interactive mode from the display state. 286 private boolean mDecoupleHalInteractiveModeFromDisplayConfig; 287 288 // True if the device should wake up when plugged or unplugged. 289 private boolean mWakeUpWhenPluggedOrUnpluggedConfig; 290 291 // True if the device should wake up when plugged or unplugged in theater mode. 292 private boolean mWakeUpWhenPluggedOrUnpluggedInTheaterModeConfig; 293 294 // True if the device should suspend when the screen is off due to proximity. 295 private boolean mSuspendWhenScreenOffDueToProximityConfig; 296 297 // True if dreams are supported on this device. 298 private boolean mDreamsSupportedConfig; 299 300 // Default value for dreams enabled 301 private boolean mDreamsEnabledByDefaultConfig; 302 303 // Default value for dreams activate-on-sleep 304 private boolean mDreamsActivatedOnSleepByDefaultConfig; 305 306 // Default value for dreams activate-on-dock 307 private boolean mDreamsActivatedOnDockByDefaultConfig; 308 309 // True if dreams can run while not plugged in. 310 private boolean mDreamsEnabledOnBatteryConfig; 311 312 // Minimum battery level to allow dreaming when powered. 313 // Use -1 to disable this safety feature. 314 private int mDreamsBatteryLevelMinimumWhenPoweredConfig; 315 316 // Minimum battery level to allow dreaming when not powered. 317 // Use -1 to disable this safety feature. 318 private int mDreamsBatteryLevelMinimumWhenNotPoweredConfig; 319 320 // If the battery level drops by this percentage and the user activity timeout 321 // has expired, then assume the device is receiving insufficient current to charge 322 // effectively and terminate the dream. Use -1 to disable this safety feature. 323 private int mDreamsBatteryLevelDrainCutoffConfig; 324 325 // True if dreams are enabled by the user. 326 private boolean mDreamsEnabledSetting; 327 328 // True if dreams should be activated on sleep. 329 private boolean mDreamsActivateOnSleepSetting; 330 331 // True if dreams should be activated on dock. 332 private boolean mDreamsActivateOnDockSetting; 333 334 // True if doze should not be started until after the screen off transition. 335 private boolean mDozeAfterScreenOffConfig; 336 337 // The minimum screen off timeout, in milliseconds. 338 private int mMinimumScreenOffTimeoutConfig; 339 340 // The screen dim duration, in milliseconds. 341 // This is subtracted from the end of the screen off timeout so the 342 // minimum screen off timeout should be longer than this. 343 private int mMaximumScreenDimDurationConfig; 344 345 // The maximum screen dim time expressed as a ratio relative to the screen 346 // off timeout. If the screen off timeout is very short then we want the 347 // dim timeout to also be quite short so that most of the time is spent on. 348 // Otherwise the user won't get much screen on time before dimming occurs. 349 private float mMaximumScreenDimRatioConfig; 350 351 // Whether device supports double tap to wake. 352 private boolean mSupportsDoubleTapWakeConfig; 353 354 // The screen off timeout setting value in milliseconds. 355 private int mScreenOffTimeoutSetting; 356 357 // The sleep timeout setting value in milliseconds. 358 private int mSleepTimeoutSetting; 359 360 // The maximum allowable screen off timeout according to the device 361 // administration policy. Overrides other settings. 362 private int mMaximumScreenOffTimeoutFromDeviceAdmin = Integer.MAX_VALUE; 363 364 // The stay on while plugged in setting. 365 // A bitfield of battery conditions under which to make the screen stay on. 366 private int mStayOnWhilePluggedInSetting; 367 368 // True if the device should stay on. 369 private boolean mStayOn; 370 371 // True if the proximity sensor reads a positive result. 372 private boolean mProximityPositive; 373 374 // Screen brightness setting limits. 375 private int mScreenBrightnessSettingMinimum; 376 private int mScreenBrightnessSettingMaximum; 377 private int mScreenBrightnessSettingDefault; 378 379 // The screen brightness setting, from 0 to 255. 380 // Use -1 if no value has been set. 381 private int mScreenBrightnessSetting; 382 383 // The screen auto-brightness adjustment setting, from -1 to 1. 384 // Use 0 if there is no adjustment. 385 private float mScreenAutoBrightnessAdjustmentSetting; 386 387 // The screen brightness mode. 388 // One of the Settings.System.SCREEN_BRIGHTNESS_MODE_* constants. 389 private int mScreenBrightnessModeSetting; 390 391 // The screen brightness setting override from the window manager 392 // to allow the current foreground activity to override the brightness. 393 // Use -1 to disable. 394 private int mScreenBrightnessOverrideFromWindowManager = -1; 395 396 // The window manager has determined the user to be inactive via other means. 397 // Set this to false to disable. 398 private boolean mUserInactiveOverrideFromWindowManager; 399 400 // The user activity timeout override from the window manager 401 // to allow the current foreground activity to override the user activity timeout. 402 // Use -1 to disable. 403 private long mUserActivityTimeoutOverrideFromWindowManager = -1; 404 405 // The screen brightness setting override from the settings application 406 // to temporarily adjust the brightness until next updated, 407 // Use -1 to disable. 408 private int mTemporaryScreenBrightnessSettingOverride = -1; 409 410 // The screen brightness adjustment setting override from the settings 411 // application to temporarily adjust the auto-brightness adjustment factor 412 // until next updated, in the range -1..1. 413 // Use NaN to disable. 414 private float mTemporaryScreenAutoBrightnessAdjustmentSettingOverride = Float.NaN; 415 416 // The screen state to use while dozing. 417 private int mDozeScreenStateOverrideFromDreamManager = Display.STATE_UNKNOWN; 418 419 // The screen brightness to use while dozing. 420 private int mDozeScreenBrightnessOverrideFromDreamManager = PowerManager.BRIGHTNESS_DEFAULT; 421 422 // Time when we last logged a warning about calling userActivity() without permission. 423 private long mLastWarningAboutUserActivityPermission = Long.MIN_VALUE; 424 425 // If true, the device is in low power mode. 426 private boolean mLowPowerModeEnabled; 427 428 // Current state of the low power mode setting. 429 private boolean mLowPowerModeSetting; 430 431 // Current state of whether the settings are allowing auto low power mode. 432 private boolean mAutoLowPowerModeConfigured; 433 434 // The user turned off low power mode below the trigger level 435 private boolean mAutoLowPowerModeSnoozing; 436 437 // True if the battery level is currently considered low. 438 private boolean mBatteryLevelLow; 439 440 // True if we are currently in device idle mode. 441 private boolean mDeviceIdleMode; 442 443 // Set of app ids that we will always respect the wake locks for. 444 int[] mDeviceIdleWhitelist = new int[0]; 445 446 // Set of app ids that are temporarily allowed to acquire wakelocks due to high-pri message 447 int[] mDeviceIdleTempWhitelist = new int[0]; 448 449 private final SparseIntArray mUidState = new SparseIntArray(); 450 451 // True if theater mode is enabled 452 private boolean mTheaterModeEnabled; 453 454 // True if double tap to wake is enabled 455 private boolean mDoubleTapWakeEnabled; 456 457 private final ArrayList<PowerManagerInternal.LowPowerModeListener> mLowPowerModeListeners 458 = new ArrayList<PowerManagerInternal.LowPowerModeListener>(); 459 460 private native void nativeInit(); 461 462 private static native void nativeAcquireSuspendBlocker(String name); 463 private static native void nativeReleaseSuspendBlocker(String name); 464 private static native void nativeSetInteractive(boolean enable); 465 private static native void nativeSetAutoSuspend(boolean enable); 466 private static native void nativeSendPowerHint(int hintId, int data); 467 private static native void nativeSetFeature(int featureId, int data); 468 469 public PowerManagerService(Context context) { 470 super(context); 471 mContext = context; 472 mHandlerThread = new ServiceThread(TAG, 473 Process.THREAD_PRIORITY_DISPLAY, false /*allowIo*/); 474 mHandlerThread.start(); 475 mHandler = new PowerManagerHandler(mHandlerThread.getLooper()); 476 477 synchronized (mLock) { 478 mWakeLockSuspendBlocker = createSuspendBlockerLocked("PowerManagerService.WakeLocks"); 479 mDisplaySuspendBlocker = createSuspendBlockerLocked("PowerManagerService.Display"); 480 mDisplaySuspendBlocker.acquire(); 481 mHoldingDisplaySuspendBlocker = true; 482 mHalAutoSuspendModeEnabled = false; 483 mHalInteractiveModeEnabled = true; 484 485 mWakefulness = WAKEFULNESS_AWAKE; 486 487 nativeInit(); 488 nativeSetAutoSuspend(false); 489 nativeSetInteractive(true); 490 nativeSetFeature(POWER_FEATURE_DOUBLE_TAP_TO_WAKE, 0); 491 } 492 } 493 494 @Override 495 public void onStart() { 496 publishBinderService(Context.POWER_SERVICE, new BinderService()); 497 publishLocalService(PowerManagerInternal.class, new LocalService()); 498 499 Watchdog.getInstance().addMonitor(this); 500 Watchdog.getInstance().addThread(mHandler); 501 } 502 503 @Override 504 public void onBootPhase(int phase) { 505 synchronized (mLock) { 506 if (phase == PHASE_BOOT_COMPLETED) { 507 final long now = SystemClock.uptimeMillis(); 508 mBootCompleted = true; 509 mDirty |= DIRTY_BOOT_COMPLETED; 510 userActivityNoUpdateLocked( 511 now, PowerManager.USER_ACTIVITY_EVENT_OTHER, 0, Process.SYSTEM_UID); 512 updatePowerStateLocked(); 513 } 514 } 515 } 516 517 public void systemReady(IAppOpsService appOps) { 518 synchronized (mLock) { 519 mSystemReady = true; 520 mAppOps = appOps; 521 mDreamManager = getLocalService(DreamManagerInternal.class); 522 mDisplayManagerInternal = getLocalService(DisplayManagerInternal.class); 523 mPolicy = getLocalService(WindowManagerPolicy.class); 524 mBatteryManagerInternal = getLocalService(BatteryManagerInternal.class); 525 526 PowerManager pm = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE); 527 mScreenBrightnessSettingMinimum = pm.getMinimumScreenBrightnessSetting(); 528 mScreenBrightnessSettingMaximum = pm.getMaximumScreenBrightnessSetting(); 529 mScreenBrightnessSettingDefault = pm.getDefaultScreenBrightnessSetting(); 530 531 SensorManager sensorManager = new SystemSensorManager(mContext, mHandler.getLooper()); 532 533 // The notifier runs on the system server's main looper so as not to interfere 534 // with the animations and other critical functions of the power manager. 535 mBatteryStats = BatteryStatsService.getService(); 536 mNotifier = new Notifier(Looper.getMainLooper(), mContext, mBatteryStats, 537 mAppOps, createSuspendBlockerLocked("PowerManagerService.Broadcasts"), 538 mPolicy); 539 540 mWirelessChargerDetector = new WirelessChargerDetector(sensorManager, 541 createSuspendBlockerLocked("PowerManagerService.WirelessChargerDetector"), 542 mHandler); 543 mSettingsObserver = new SettingsObserver(mHandler); 544 545 mLightsManager = getLocalService(LightsManager.class); 546 mAttentionLight = mLightsManager.getLight(LightsManager.LIGHT_ID_ATTENTION); 547 548 // Initialize display power management. 549 mDisplayManagerInternal.initPowerManagement( 550 mDisplayPowerCallbacks, mHandler, sensorManager); 551 552 // Register for broadcasts from other components of the system. 553 IntentFilter filter = new IntentFilter(); 554 filter.addAction(Intent.ACTION_BATTERY_CHANGED); 555 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 556 mContext.registerReceiver(new BatteryReceiver(), filter, null, mHandler); 557 558 filter = new IntentFilter(); 559 filter.addAction(Intent.ACTION_DREAMING_STARTED); 560 filter.addAction(Intent.ACTION_DREAMING_STOPPED); 561 mContext.registerReceiver(new DreamReceiver(), filter, null, mHandler); 562 563 filter = new IntentFilter(); 564 filter.addAction(Intent.ACTION_USER_SWITCHED); 565 mContext.registerReceiver(new UserSwitchedReceiver(), filter, null, mHandler); 566 567 filter = new IntentFilter(); 568 filter.addAction(Intent.ACTION_DOCK_EVENT); 569 mContext.registerReceiver(new DockReceiver(), filter, null, mHandler); 570 571 // Register for settings changes. 572 final ContentResolver resolver = mContext.getContentResolver(); 573 resolver.registerContentObserver(Settings.Secure.getUriFor( 574 Settings.Secure.SCREENSAVER_ENABLED), 575 false, mSettingsObserver, UserHandle.USER_ALL); 576 resolver.registerContentObserver(Settings.Secure.getUriFor( 577 Settings.Secure.SCREENSAVER_ACTIVATE_ON_SLEEP), 578 false, mSettingsObserver, UserHandle.USER_ALL); 579 resolver.registerContentObserver(Settings.Secure.getUriFor( 580 Settings.Secure.SCREENSAVER_ACTIVATE_ON_DOCK), 581 false, mSettingsObserver, UserHandle.USER_ALL); 582 resolver.registerContentObserver(Settings.System.getUriFor( 583 Settings.System.SCREEN_OFF_TIMEOUT), 584 false, mSettingsObserver, UserHandle.USER_ALL); 585 resolver.registerContentObserver(Settings.Secure.getUriFor( 586 Settings.Secure.SLEEP_TIMEOUT), 587 false, mSettingsObserver, UserHandle.USER_ALL); 588 resolver.registerContentObserver(Settings.Global.getUriFor( 589 Settings.Global.STAY_ON_WHILE_PLUGGED_IN), 590 false, mSettingsObserver, UserHandle.USER_ALL); 591 resolver.registerContentObserver(Settings.System.getUriFor( 592 Settings.System.SCREEN_BRIGHTNESS), 593 false, mSettingsObserver, UserHandle.USER_ALL); 594 resolver.registerContentObserver(Settings.System.getUriFor( 595 Settings.System.SCREEN_BRIGHTNESS_MODE), 596 false, mSettingsObserver, UserHandle.USER_ALL); 597 resolver.registerContentObserver(Settings.System.getUriFor( 598 Settings.System.SCREEN_AUTO_BRIGHTNESS_ADJ), 599 false, mSettingsObserver, UserHandle.USER_ALL); 600 resolver.registerContentObserver(Settings.Global.getUriFor( 601 Settings.Global.LOW_POWER_MODE), 602 false, mSettingsObserver, UserHandle.USER_ALL); 603 resolver.registerContentObserver(Settings.Global.getUriFor( 604 Settings.Global.LOW_POWER_MODE_TRIGGER_LEVEL), 605 false, mSettingsObserver, UserHandle.USER_ALL); 606 resolver.registerContentObserver(Settings.Global.getUriFor( 607 Settings.Global.THEATER_MODE_ON), 608 false, mSettingsObserver, UserHandle.USER_ALL); 609 resolver.registerContentObserver(Settings.Secure.getUriFor( 610 Settings.Secure.DOUBLE_TAP_TO_WAKE), 611 false, mSettingsObserver, UserHandle.USER_ALL); 612 // Go. 613 readConfigurationLocked(); 614 updateSettingsLocked(); 615 mDirty |= DIRTY_BATTERY_STATE; 616 updatePowerStateLocked(); 617 } 618 } 619 620 private void readConfigurationLocked() { 621 final Resources resources = mContext.getResources(); 622 623 mDecoupleHalAutoSuspendModeFromDisplayConfig = resources.getBoolean( 624 com.android.internal.R.bool.config_powerDecoupleAutoSuspendModeFromDisplay); 625 mDecoupleHalInteractiveModeFromDisplayConfig = resources.getBoolean( 626 com.android.internal.R.bool.config_powerDecoupleInteractiveModeFromDisplay); 627 mWakeUpWhenPluggedOrUnpluggedConfig = resources.getBoolean( 628 com.android.internal.R.bool.config_unplugTurnsOnScreen); 629 mWakeUpWhenPluggedOrUnpluggedInTheaterModeConfig = resources.getBoolean( 630 com.android.internal.R.bool.config_allowTheaterModeWakeFromUnplug); 631 mSuspendWhenScreenOffDueToProximityConfig = resources.getBoolean( 632 com.android.internal.R.bool.config_suspendWhenScreenOffDueToProximity); 633 mDreamsSupportedConfig = resources.getBoolean( 634 com.android.internal.R.bool.config_dreamsSupported); 635 mDreamsEnabledByDefaultConfig = resources.getBoolean( 636 com.android.internal.R.bool.config_dreamsEnabledByDefault); 637 mDreamsActivatedOnSleepByDefaultConfig = resources.getBoolean( 638 com.android.internal.R.bool.config_dreamsActivatedOnSleepByDefault); 639 mDreamsActivatedOnDockByDefaultConfig = resources.getBoolean( 640 com.android.internal.R.bool.config_dreamsActivatedOnDockByDefault); 641 mDreamsEnabledOnBatteryConfig = resources.getBoolean( 642 com.android.internal.R.bool.config_dreamsEnabledOnBattery); 643 mDreamsBatteryLevelMinimumWhenPoweredConfig = resources.getInteger( 644 com.android.internal.R.integer.config_dreamsBatteryLevelMinimumWhenPowered); 645 mDreamsBatteryLevelMinimumWhenNotPoweredConfig = resources.getInteger( 646 com.android.internal.R.integer.config_dreamsBatteryLevelMinimumWhenNotPowered); 647 mDreamsBatteryLevelDrainCutoffConfig = resources.getInteger( 648 com.android.internal.R.integer.config_dreamsBatteryLevelDrainCutoff); 649 mDozeAfterScreenOffConfig = resources.getBoolean( 650 com.android.internal.R.bool.config_dozeAfterScreenOff); 651 mMinimumScreenOffTimeoutConfig = resources.getInteger( 652 com.android.internal.R.integer.config_minimumScreenOffTimeout); 653 mMaximumScreenDimDurationConfig = resources.getInteger( 654 com.android.internal.R.integer.config_maximumScreenDimDuration); 655 mMaximumScreenDimRatioConfig = resources.getFraction( 656 com.android.internal.R.fraction.config_maximumScreenDimRatio, 1, 1); 657 mSupportsDoubleTapWakeConfig = resources.getBoolean( 658 com.android.internal.R.bool.config_supportDoubleTapWake); 659 } 660 661 private void updateSettingsLocked() { 662 final ContentResolver resolver = mContext.getContentResolver(); 663 664 mDreamsEnabledSetting = (Settings.Secure.getIntForUser(resolver, 665 Settings.Secure.SCREENSAVER_ENABLED, 666 mDreamsEnabledByDefaultConfig ? 1 : 0, 667 UserHandle.USER_CURRENT) != 0); 668 mDreamsActivateOnSleepSetting = (Settings.Secure.getIntForUser(resolver, 669 Settings.Secure.SCREENSAVER_ACTIVATE_ON_SLEEP, 670 mDreamsActivatedOnSleepByDefaultConfig ? 1 : 0, 671 UserHandle.USER_CURRENT) != 0); 672 mDreamsActivateOnDockSetting = (Settings.Secure.getIntForUser(resolver, 673 Settings.Secure.SCREENSAVER_ACTIVATE_ON_DOCK, 674 mDreamsActivatedOnDockByDefaultConfig ? 1 : 0, 675 UserHandle.USER_CURRENT) != 0); 676 mScreenOffTimeoutSetting = Settings.System.getIntForUser(resolver, 677 Settings.System.SCREEN_OFF_TIMEOUT, DEFAULT_SCREEN_OFF_TIMEOUT, 678 UserHandle.USER_CURRENT); 679 mSleepTimeoutSetting = Settings.Secure.getIntForUser(resolver, 680 Settings.Secure.SLEEP_TIMEOUT, DEFAULT_SLEEP_TIMEOUT, 681 UserHandle.USER_CURRENT); 682 mStayOnWhilePluggedInSetting = Settings.Global.getInt(resolver, 683 Settings.Global.STAY_ON_WHILE_PLUGGED_IN, BatteryManager.BATTERY_PLUGGED_AC); 684 mTheaterModeEnabled = Settings.Global.getInt(mContext.getContentResolver(), 685 Settings.Global.THEATER_MODE_ON, 0) == 1; 686 687 if (mSupportsDoubleTapWakeConfig) { 688 boolean doubleTapWakeEnabled = Settings.Secure.getIntForUser(resolver, 689 Settings.Secure.DOUBLE_TAP_TO_WAKE, DEFAULT_DOUBLE_TAP_TO_WAKE, 690 UserHandle.USER_CURRENT) != 0; 691 if (doubleTapWakeEnabled != mDoubleTapWakeEnabled) { 692 mDoubleTapWakeEnabled = doubleTapWakeEnabled; 693 nativeSetFeature(POWER_FEATURE_DOUBLE_TAP_TO_WAKE, mDoubleTapWakeEnabled ? 1 : 0); 694 } 695 } 696 697 final int oldScreenBrightnessSetting = mScreenBrightnessSetting; 698 mScreenBrightnessSetting = Settings.System.getIntForUser(resolver, 699 Settings.System.SCREEN_BRIGHTNESS, mScreenBrightnessSettingDefault, 700 UserHandle.USER_CURRENT); 701 if (oldScreenBrightnessSetting != mScreenBrightnessSetting) { 702 mTemporaryScreenBrightnessSettingOverride = -1; 703 } 704 705 final float oldScreenAutoBrightnessAdjustmentSetting = 706 mScreenAutoBrightnessAdjustmentSetting; 707 mScreenAutoBrightnessAdjustmentSetting = Settings.System.getFloatForUser(resolver, 708 Settings.System.SCREEN_AUTO_BRIGHTNESS_ADJ, 0.0f, 709 UserHandle.USER_CURRENT); 710 if (oldScreenAutoBrightnessAdjustmentSetting != mScreenAutoBrightnessAdjustmentSetting) { 711 mTemporaryScreenAutoBrightnessAdjustmentSettingOverride = Float.NaN; 712 } 713 714 mScreenBrightnessModeSetting = Settings.System.getIntForUser(resolver, 715 Settings.System.SCREEN_BRIGHTNESS_MODE, 716 Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL, UserHandle.USER_CURRENT); 717 718 final boolean lowPowerModeEnabled = Settings.Global.getInt(resolver, 719 Settings.Global.LOW_POWER_MODE, 0) != 0; 720 final boolean autoLowPowerModeConfigured = Settings.Global.getInt(resolver, 721 Settings.Global.LOW_POWER_MODE_TRIGGER_LEVEL, 0) != 0; 722 if (lowPowerModeEnabled != mLowPowerModeSetting 723 || autoLowPowerModeConfigured != mAutoLowPowerModeConfigured) { 724 mLowPowerModeSetting = lowPowerModeEnabled; 725 mAutoLowPowerModeConfigured = autoLowPowerModeConfigured; 726 updateLowPowerModeLocked(); 727 } 728 729 mDirty |= DIRTY_SETTINGS; 730 } 731 732 void updateLowPowerModeLocked() { 733 if (mIsPowered && mLowPowerModeSetting) { 734 if (DEBUG_SPEW) { 735 Slog.d(TAG, "updateLowPowerModeLocked: powered, turning setting off"); 736 } 737 // Turn setting off if powered 738 Settings.Global.putInt(mContext.getContentResolver(), 739 Settings.Global.LOW_POWER_MODE, 0); 740 mLowPowerModeSetting = false; 741 } 742 final boolean autoLowPowerModeEnabled = !mIsPowered && mAutoLowPowerModeConfigured 743 && !mAutoLowPowerModeSnoozing && mBatteryLevelLow; 744 final boolean lowPowerModeEnabled = mLowPowerModeSetting || autoLowPowerModeEnabled; 745 746 if (mLowPowerModeEnabled != lowPowerModeEnabled) { 747 mLowPowerModeEnabled = lowPowerModeEnabled; 748 powerHintInternal(POWER_HINT_LOW_POWER, lowPowerModeEnabled ? 1 : 0); 749 BackgroundThread.getHandler().post(new Runnable() { 750 @Override 751 public void run() { 752 Intent intent = new Intent(PowerManager.ACTION_POWER_SAVE_MODE_CHANGING) 753 .putExtra(PowerManager.EXTRA_POWER_SAVE_MODE, mLowPowerModeEnabled) 754 .addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 755 mContext.sendBroadcast(intent); 756 ArrayList<PowerManagerInternal.LowPowerModeListener> listeners; 757 synchronized (mLock) { 758 listeners = new ArrayList<PowerManagerInternal.LowPowerModeListener>( 759 mLowPowerModeListeners); 760 } 761 for (int i=0; i<listeners.size(); i++) { 762 listeners.get(i).onLowPowerModeChanged(lowPowerModeEnabled); 763 } 764 intent = new Intent(PowerManager.ACTION_POWER_SAVE_MODE_CHANGED); 765 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 766 mContext.sendBroadcast(intent); 767 } 768 }); 769 } 770 } 771 772 private void handleSettingsChangedLocked() { 773 updateSettingsLocked(); 774 updatePowerStateLocked(); 775 } 776 777 private void acquireWakeLockInternal(IBinder lock, int flags, String tag, String packageName, 778 WorkSource ws, String historyTag, int uid, int pid) { 779 synchronized (mLock) { 780 if (DEBUG_SPEW) { 781 Slog.d(TAG, "acquireWakeLockInternal: lock=" + Objects.hashCode(lock) 782 + ", flags=0x" + Integer.toHexString(flags) 783 + ", tag=\"" + tag + "\", ws=" + ws + ", uid=" + uid + ", pid=" + pid); 784 } 785 786 WakeLock wakeLock; 787 int index = findWakeLockIndexLocked(lock); 788 boolean notifyAcquire; 789 if (index >= 0) { 790 wakeLock = mWakeLocks.get(index); 791 if (!wakeLock.hasSameProperties(flags, tag, ws, uid, pid)) { 792 // Update existing wake lock. This shouldn't happen but is harmless. 793 notifyWakeLockChangingLocked(wakeLock, flags, tag, packageName, 794 uid, pid, ws, historyTag); 795 wakeLock.updateProperties(flags, tag, packageName, ws, historyTag, uid, pid); 796 } 797 notifyAcquire = false; 798 } else { 799 wakeLock = new WakeLock(lock, flags, tag, packageName, ws, historyTag, uid, pid); 800 try { 801 lock.linkToDeath(wakeLock, 0); 802 } catch (RemoteException ex) { 803 throw new IllegalArgumentException("Wake lock is already dead."); 804 } 805 mWakeLocks.add(wakeLock); 806 setWakeLockDisabledStateLocked(wakeLock); 807 notifyAcquire = true; 808 } 809 810 applyWakeLockFlagsOnAcquireLocked(wakeLock, uid); 811 mDirty |= DIRTY_WAKE_LOCKS; 812 updatePowerStateLocked(); 813 if (notifyAcquire) { 814 // This needs to be done last so we are sure we have acquired the 815 // kernel wake lock. Otherwise we have a race where the system may 816 // go to sleep between the time we start the accounting in battery 817 // stats and when we actually get around to telling the kernel to 818 // stay awake. 819 notifyWakeLockAcquiredLocked(wakeLock); 820 } 821 } 822 } 823 824 @SuppressWarnings("deprecation") 825 private static boolean isScreenLock(final WakeLock wakeLock) { 826 switch (wakeLock.mFlags & PowerManager.WAKE_LOCK_LEVEL_MASK) { 827 case PowerManager.FULL_WAKE_LOCK: 828 case PowerManager.SCREEN_BRIGHT_WAKE_LOCK: 829 case PowerManager.SCREEN_DIM_WAKE_LOCK: 830 return true; 831 } 832 return false; 833 } 834 835 private void applyWakeLockFlagsOnAcquireLocked(WakeLock wakeLock, int uid) { 836 if ((wakeLock.mFlags & PowerManager.ACQUIRE_CAUSES_WAKEUP) != 0 837 && isScreenLock(wakeLock)) { 838 String opPackageName; 839 int opUid; 840 if (wakeLock.mWorkSource != null && wakeLock.mWorkSource.getName(0) != null) { 841 opPackageName = wakeLock.mWorkSource.getName(0); 842 opUid = wakeLock.mWorkSource.get(0); 843 } else { 844 opPackageName = wakeLock.mPackageName; 845 opUid = wakeLock.mWorkSource != null ? wakeLock.mWorkSource.get(0) 846 : wakeLock.mOwnerUid; 847 } 848 wakeUpNoUpdateLocked(SystemClock.uptimeMillis(), wakeLock.mTag, opUid, 849 opPackageName, opUid); 850 } 851 } 852 853 private void releaseWakeLockInternal(IBinder lock, int flags) { 854 synchronized (mLock) { 855 int index = findWakeLockIndexLocked(lock); 856 if (index < 0) { 857 if (DEBUG_SPEW) { 858 Slog.d(TAG, "releaseWakeLockInternal: lock=" + Objects.hashCode(lock) 859 + " [not found], flags=0x" + Integer.toHexString(flags)); 860 } 861 return; 862 } 863 864 WakeLock wakeLock = mWakeLocks.get(index); 865 if (DEBUG_SPEW) { 866 Slog.d(TAG, "releaseWakeLockInternal: lock=" + Objects.hashCode(lock) 867 + " [" + wakeLock.mTag + "], flags=0x" + Integer.toHexString(flags)); 868 } 869 870 if ((flags & PowerManager.RELEASE_FLAG_WAIT_FOR_NO_PROXIMITY) != 0) { 871 mRequestWaitForNegativeProximity = true; 872 } 873 874 wakeLock.mLock.unlinkToDeath(wakeLock, 0); 875 removeWakeLockLocked(wakeLock, index); 876 } 877 } 878 879 private void handleWakeLockDeath(WakeLock wakeLock) { 880 synchronized (mLock) { 881 if (DEBUG_SPEW) { 882 Slog.d(TAG, "handleWakeLockDeath: lock=" + Objects.hashCode(wakeLock.mLock) 883 + " [" + wakeLock.mTag + "]"); 884 } 885 886 int index = mWakeLocks.indexOf(wakeLock); 887 if (index < 0) { 888 return; 889 } 890 891 removeWakeLockLocked(wakeLock, index); 892 } 893 } 894 895 private void removeWakeLockLocked(WakeLock wakeLock, int index) { 896 mWakeLocks.remove(index); 897 notifyWakeLockReleasedLocked(wakeLock); 898 899 applyWakeLockFlagsOnReleaseLocked(wakeLock); 900 mDirty |= DIRTY_WAKE_LOCKS; 901 updatePowerStateLocked(); 902 } 903 904 private void applyWakeLockFlagsOnReleaseLocked(WakeLock wakeLock) { 905 if ((wakeLock.mFlags & PowerManager.ON_AFTER_RELEASE) != 0 906 && isScreenLock(wakeLock)) { 907 userActivityNoUpdateLocked(SystemClock.uptimeMillis(), 908 PowerManager.USER_ACTIVITY_EVENT_OTHER, 909 PowerManager.USER_ACTIVITY_FLAG_NO_CHANGE_LIGHTS, 910 wakeLock.mOwnerUid); 911 } 912 } 913 914 private void updateWakeLockWorkSourceInternal(IBinder lock, WorkSource ws, String historyTag, 915 int callingUid) { 916 synchronized (mLock) { 917 int index = findWakeLockIndexLocked(lock); 918 if (index < 0) { 919 if (DEBUG_SPEW) { 920 Slog.d(TAG, "updateWakeLockWorkSourceInternal: lock=" + Objects.hashCode(lock) 921 + " [not found], ws=" + ws); 922 } 923 throw new IllegalArgumentException("Wake lock not active: " + lock 924 + " from uid " + callingUid); 925 } 926 927 WakeLock wakeLock = mWakeLocks.get(index); 928 if (DEBUG_SPEW) { 929 Slog.d(TAG, "updateWakeLockWorkSourceInternal: lock=" + Objects.hashCode(lock) 930 + " [" + wakeLock.mTag + "], ws=" + ws); 931 } 932 933 if (!wakeLock.hasSameWorkSource(ws)) { 934 notifyWakeLockChangingLocked(wakeLock, wakeLock.mFlags, wakeLock.mTag, 935 wakeLock.mPackageName, wakeLock.mOwnerUid, wakeLock.mOwnerPid, 936 ws, historyTag); 937 wakeLock.mHistoryTag = historyTag; 938 wakeLock.updateWorkSource(ws); 939 } 940 } 941 } 942 943 private int findWakeLockIndexLocked(IBinder lock) { 944 final int count = mWakeLocks.size(); 945 for (int i = 0; i < count; i++) { 946 if (mWakeLocks.get(i).mLock == lock) { 947 return i; 948 } 949 } 950 return -1; 951 } 952 953 private void notifyWakeLockAcquiredLocked(WakeLock wakeLock) { 954 if (mSystemReady && !wakeLock.mDisabled) { 955 wakeLock.mNotifiedAcquired = true; 956 mNotifier.onWakeLockAcquired(wakeLock.mFlags, wakeLock.mTag, wakeLock.mPackageName, 957 wakeLock.mOwnerUid, wakeLock.mOwnerPid, wakeLock.mWorkSource, 958 wakeLock.mHistoryTag); 959 } 960 } 961 962 private void notifyWakeLockChangingLocked(WakeLock wakeLock, int flags, String tag, 963 String packageName, int uid, int pid, WorkSource ws, String historyTag) { 964 if (mSystemReady && wakeLock.mNotifiedAcquired) { 965 mNotifier.onWakeLockChanging(wakeLock.mFlags, wakeLock.mTag, wakeLock.mPackageName, 966 wakeLock.mOwnerUid, wakeLock.mOwnerPid, wakeLock.mWorkSource, 967 wakeLock.mHistoryTag, flags, tag, packageName, uid, pid, ws, historyTag); 968 } 969 } 970 971 private void notifyWakeLockReleasedLocked(WakeLock wakeLock) { 972 if (mSystemReady && wakeLock.mNotifiedAcquired) { 973 wakeLock.mNotifiedAcquired = false; 974 mNotifier.onWakeLockReleased(wakeLock.mFlags, wakeLock.mTag, 975 wakeLock.mPackageName, wakeLock.mOwnerUid, wakeLock.mOwnerPid, 976 wakeLock.mWorkSource, wakeLock.mHistoryTag); 977 } 978 } 979 980 @SuppressWarnings("deprecation") 981 private boolean isWakeLockLevelSupportedInternal(int level) { 982 synchronized (mLock) { 983 switch (level) { 984 case PowerManager.PARTIAL_WAKE_LOCK: 985 case PowerManager.SCREEN_DIM_WAKE_LOCK: 986 case PowerManager.SCREEN_BRIGHT_WAKE_LOCK: 987 case PowerManager.FULL_WAKE_LOCK: 988 case PowerManager.DOZE_WAKE_LOCK: 989 case PowerManager.DRAW_WAKE_LOCK: 990 return true; 991 992 case PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK: 993 return mSystemReady && mDisplayManagerInternal.isProximitySensorAvailable(); 994 995 default: 996 return false; 997 } 998 } 999 } 1000 1001 // Called from native code. 1002 private void userActivityFromNative(long eventTime, int event, int flags) { 1003 userActivityInternal(eventTime, event, flags, Process.SYSTEM_UID); 1004 } 1005 1006 private void userActivityInternal(long eventTime, int event, int flags, int uid) { 1007 synchronized (mLock) { 1008 if (userActivityNoUpdateLocked(eventTime, event, flags, uid)) { 1009 updatePowerStateLocked(); 1010 } 1011 } 1012 } 1013 1014 private boolean userActivityNoUpdateLocked(long eventTime, int event, int flags, int uid) { 1015 if (DEBUG_SPEW) { 1016 Slog.d(TAG, "userActivityNoUpdateLocked: eventTime=" + eventTime 1017 + ", event=" + event + ", flags=0x" + Integer.toHexString(flags) 1018 + ", uid=" + uid); 1019 } 1020 1021 if (eventTime < mLastSleepTime || eventTime < mLastWakeTime 1022 || !mBootCompleted || !mSystemReady) { 1023 return false; 1024 } 1025 1026 Trace.traceBegin(Trace.TRACE_TAG_POWER, "userActivity"); 1027 try { 1028 if (eventTime > mLastInteractivePowerHintTime) { 1029 powerHintInternal(POWER_HINT_INTERACTION, 0); 1030 mLastInteractivePowerHintTime = eventTime; 1031 } 1032 1033 mNotifier.onUserActivity(event, uid); 1034 1035 if (mUserInactiveOverrideFromWindowManager) { 1036 mUserInactiveOverrideFromWindowManager = false; 1037 } 1038 1039 if (mWakefulness == WAKEFULNESS_ASLEEP 1040 || mWakefulness == WAKEFULNESS_DOZING 1041 || (flags & PowerManager.USER_ACTIVITY_FLAG_INDIRECT) != 0) { 1042 return false; 1043 } 1044 1045 if ((flags & PowerManager.USER_ACTIVITY_FLAG_NO_CHANGE_LIGHTS) != 0) { 1046 if (eventTime > mLastUserActivityTimeNoChangeLights 1047 && eventTime > mLastUserActivityTime) { 1048 mLastUserActivityTimeNoChangeLights = eventTime; 1049 mDirty |= DIRTY_USER_ACTIVITY; 1050 return true; 1051 } 1052 } else { 1053 if (eventTime > mLastUserActivityTime) { 1054 mLastUserActivityTime = eventTime; 1055 mDirty |= DIRTY_USER_ACTIVITY; 1056 return true; 1057 } 1058 } 1059 } finally { 1060 Trace.traceEnd(Trace.TRACE_TAG_POWER); 1061 } 1062 return false; 1063 } 1064 1065 private void wakeUpInternal(long eventTime, String reason, int uid, String opPackageName, 1066 int opUid) { 1067 synchronized (mLock) { 1068 if (wakeUpNoUpdateLocked(eventTime, reason, uid, opPackageName, opUid)) { 1069 updatePowerStateLocked(); 1070 } 1071 } 1072 } 1073 1074 private boolean wakeUpNoUpdateLocked(long eventTime, String reason, int reasonUid, 1075 String opPackageName, int opUid) { 1076 if (DEBUG_SPEW) { 1077 Slog.d(TAG, "wakeUpNoUpdateLocked: eventTime=" + eventTime + ", uid=" + reasonUid); 1078 } 1079 1080 if (eventTime < mLastSleepTime || mWakefulness == WAKEFULNESS_AWAKE 1081 || !mBootCompleted || !mSystemReady) { 1082 return false; 1083 } 1084 1085 Trace.traceBegin(Trace.TRACE_TAG_POWER, "wakeUp"); 1086 try { 1087 switch (mWakefulness) { 1088 case WAKEFULNESS_ASLEEP: 1089 Slog.i(TAG, "Waking up from sleep (uid " + reasonUid +")..."); 1090 break; 1091 case WAKEFULNESS_DREAMING: 1092 Slog.i(TAG, "Waking up from dream (uid " + reasonUid +")..."); 1093 break; 1094 case WAKEFULNESS_DOZING: 1095 Slog.i(TAG, "Waking up from dozing (uid " + reasonUid +")..."); 1096 break; 1097 } 1098 1099 mLastWakeTime = eventTime; 1100 setWakefulnessLocked(WAKEFULNESS_AWAKE, 0); 1101 1102 mNotifier.onWakeUp(reason, reasonUid, opPackageName, opUid); 1103 userActivityNoUpdateLocked( 1104 eventTime, PowerManager.USER_ACTIVITY_EVENT_OTHER, 0, reasonUid); 1105 } finally { 1106 Trace.traceEnd(Trace.TRACE_TAG_POWER); 1107 } 1108 return true; 1109 } 1110 1111 private void goToSleepInternal(long eventTime, int reason, int flags, int uid) { 1112 synchronized (mLock) { 1113 if (goToSleepNoUpdateLocked(eventTime, reason, flags, uid)) { 1114 updatePowerStateLocked(); 1115 } 1116 } 1117 } 1118 1119 // This method is called goToSleep for historical reasons but we actually start 1120 // dozing before really going to sleep. 1121 @SuppressWarnings("deprecation") 1122 private boolean goToSleepNoUpdateLocked(long eventTime, int reason, int flags, int uid) { 1123 if (DEBUG_SPEW) { 1124 Slog.d(TAG, "goToSleepNoUpdateLocked: eventTime=" + eventTime 1125 + ", reason=" + reason + ", flags=" + flags + ", uid=" + uid); 1126 } 1127 1128 if (eventTime < mLastWakeTime 1129 || mWakefulness == WAKEFULNESS_ASLEEP 1130 || mWakefulness == WAKEFULNESS_DOZING 1131 || !mBootCompleted || !mSystemReady) { 1132 return false; 1133 } 1134 1135 Trace.traceBegin(Trace.TRACE_TAG_POWER, "goToSleep"); 1136 try { 1137 switch (reason) { 1138 case PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN: 1139 Slog.i(TAG, "Going to sleep due to device administration policy " 1140 + "(uid " + uid +")..."); 1141 break; 1142 case PowerManager.GO_TO_SLEEP_REASON_TIMEOUT: 1143 Slog.i(TAG, "Going to sleep due to screen timeout (uid " + uid +")..."); 1144 break; 1145 case PowerManager.GO_TO_SLEEP_REASON_LID_SWITCH: 1146 Slog.i(TAG, "Going to sleep due to lid switch (uid " + uid +")..."); 1147 break; 1148 case PowerManager.GO_TO_SLEEP_REASON_POWER_BUTTON: 1149 Slog.i(TAG, "Going to sleep due to power button (uid " + uid +")..."); 1150 break; 1151 case PowerManager.GO_TO_SLEEP_REASON_SLEEP_BUTTON: 1152 Slog.i(TAG, "Going to sleep due to sleep button (uid " + uid +")..."); 1153 break; 1154 case PowerManager.GO_TO_SLEEP_REASON_HDMI: 1155 Slog.i(TAG, "Going to sleep due to HDMI standby (uid " + uid +")..."); 1156 break; 1157 default: 1158 Slog.i(TAG, "Going to sleep by application request (uid " + uid +")..."); 1159 reason = PowerManager.GO_TO_SLEEP_REASON_APPLICATION; 1160 break; 1161 } 1162 1163 mLastSleepTime = eventTime; 1164 mSandmanSummoned = true; 1165 setWakefulnessLocked(WAKEFULNESS_DOZING, reason); 1166 1167 // Report the number of wake locks that will be cleared by going to sleep. 1168 int numWakeLocksCleared = 0; 1169 final int numWakeLocks = mWakeLocks.size(); 1170 for (int i = 0; i < numWakeLocks; i++) { 1171 final WakeLock wakeLock = mWakeLocks.get(i); 1172 switch (wakeLock.mFlags & PowerManager.WAKE_LOCK_LEVEL_MASK) { 1173 case PowerManager.FULL_WAKE_LOCK: 1174 case PowerManager.SCREEN_BRIGHT_WAKE_LOCK: 1175 case PowerManager.SCREEN_DIM_WAKE_LOCK: 1176 numWakeLocksCleared += 1; 1177 break; 1178 } 1179 } 1180 EventLog.writeEvent(EventLogTags.POWER_SLEEP_REQUESTED, numWakeLocksCleared); 1181 1182 // Skip dozing if requested. 1183 if ((flags & PowerManager.GO_TO_SLEEP_FLAG_NO_DOZE) != 0) { 1184 reallyGoToSleepNoUpdateLocked(eventTime, uid); 1185 } 1186 } finally { 1187 Trace.traceEnd(Trace.TRACE_TAG_POWER); 1188 } 1189 return true; 1190 } 1191 1192 private void napInternal(long eventTime, int uid) { 1193 synchronized (mLock) { 1194 if (napNoUpdateLocked(eventTime, uid)) { 1195 updatePowerStateLocked(); 1196 } 1197 } 1198 } 1199 1200 private boolean napNoUpdateLocked(long eventTime, int uid) { 1201 if (DEBUG_SPEW) { 1202 Slog.d(TAG, "napNoUpdateLocked: eventTime=" + eventTime + ", uid=" + uid); 1203 } 1204 1205 if (eventTime < mLastWakeTime || mWakefulness != WAKEFULNESS_AWAKE 1206 || !mBootCompleted || !mSystemReady) { 1207 return false; 1208 } 1209 1210 Trace.traceBegin(Trace.TRACE_TAG_POWER, "nap"); 1211 try { 1212 Slog.i(TAG, "Nap time (uid " + uid +")..."); 1213 1214 mSandmanSummoned = true; 1215 setWakefulnessLocked(WAKEFULNESS_DREAMING, 0); 1216 } finally { 1217 Trace.traceEnd(Trace.TRACE_TAG_POWER); 1218 } 1219 return true; 1220 } 1221 1222 // Done dozing, drop everything and go to sleep. 1223 private boolean reallyGoToSleepNoUpdateLocked(long eventTime, int uid) { 1224 if (DEBUG_SPEW) { 1225 Slog.d(TAG, "reallyGoToSleepNoUpdateLocked: eventTime=" + eventTime 1226 + ", uid=" + uid); 1227 } 1228 1229 if (eventTime < mLastWakeTime || mWakefulness == WAKEFULNESS_ASLEEP 1230 || !mBootCompleted || !mSystemReady) { 1231 return false; 1232 } 1233 1234 Trace.traceBegin(Trace.TRACE_TAG_POWER, "reallyGoToSleep"); 1235 try { 1236 Slog.i(TAG, "Sleeping (uid " + uid +")..."); 1237 1238 setWakefulnessLocked(WAKEFULNESS_ASLEEP, PowerManager.GO_TO_SLEEP_REASON_TIMEOUT); 1239 } finally { 1240 Trace.traceEnd(Trace.TRACE_TAG_POWER); 1241 } 1242 return true; 1243 } 1244 1245 private void setWakefulnessLocked(int wakefulness, int reason) { 1246 if (mWakefulness != wakefulness) { 1247 mWakefulness = wakefulness; 1248 mWakefulnessChanging = true; 1249 mDirty |= DIRTY_WAKEFULNESS; 1250 mNotifier.onWakefulnessChangeStarted(wakefulness, reason); 1251 } 1252 } 1253 1254 private void finishWakefulnessChangeIfNeededLocked() { 1255 if (mWakefulnessChanging && mDisplayReady) { 1256 if (mWakefulness == WAKEFULNESS_DOZING 1257 && (mWakeLockSummary & WAKE_LOCK_DOZE) == 0) { 1258 return; // wait until dream has enabled dozing 1259 } 1260 mWakefulnessChanging = false; 1261 mNotifier.onWakefulnessChangeFinished(); 1262 } 1263 } 1264 1265 /** 1266 * Updates the global power state based on dirty bits recorded in mDirty. 1267 * 1268 * This is the main function that performs power state transitions. 1269 * We centralize them here so that we can recompute the power state completely 1270 * each time something important changes, and ensure that we do it the same 1271 * way each time. The point is to gather all of the transition logic here. 1272 */ 1273 private void updatePowerStateLocked() { 1274 if (!mSystemReady || mDirty == 0) { 1275 return; 1276 } 1277 if (!Thread.holdsLock(mLock)) { 1278 Slog.wtf(TAG, "Power manager lock was not held when calling updatePowerStateLocked"); 1279 } 1280 1281 Trace.traceBegin(Trace.TRACE_TAG_POWER, "updatePowerState"); 1282 try { 1283 // Phase 0: Basic state updates. 1284 updateIsPoweredLocked(mDirty); 1285 updateStayOnLocked(mDirty); 1286 updateScreenBrightnessBoostLocked(mDirty); 1287 1288 // Phase 1: Update wakefulness. 1289 // Loop because the wake lock and user activity computations are influenced 1290 // by changes in wakefulness. 1291 final long now = SystemClock.uptimeMillis(); 1292 int dirtyPhase2 = 0; 1293 for (;;) { 1294 int dirtyPhase1 = mDirty; 1295 dirtyPhase2 |= dirtyPhase1; 1296 mDirty = 0; 1297 1298 updateWakeLockSummaryLocked(dirtyPhase1); 1299 updateUserActivitySummaryLocked(now, dirtyPhase1); 1300 if (!updateWakefulnessLocked(dirtyPhase1)) { 1301 break; 1302 } 1303 } 1304 1305 // Phase 2: Update display power state. 1306 boolean displayBecameReady = updateDisplayPowerStateLocked(dirtyPhase2); 1307 1308 // Phase 3: Update dream state (depends on display ready signal). 1309 updateDreamLocked(dirtyPhase2, displayBecameReady); 1310 1311 // Phase 4: Send notifications, if needed. 1312 finishWakefulnessChangeIfNeededLocked(); 1313 1314 // Phase 5: Update suspend blocker. 1315 // Because we might release the last suspend blocker here, we need to make sure 1316 // we finished everything else first! 1317 updateSuspendBlockerLocked(); 1318 } finally { 1319 Trace.traceEnd(Trace.TRACE_TAG_POWER); 1320 } 1321 } 1322 1323 /** 1324 * Updates the value of mIsPowered. 1325 * Sets DIRTY_IS_POWERED if a change occurred. 1326 */ 1327 private void updateIsPoweredLocked(int dirty) { 1328 if ((dirty & DIRTY_BATTERY_STATE) != 0) { 1329 final boolean wasPowered = mIsPowered; 1330 final int oldPlugType = mPlugType; 1331 final boolean oldLevelLow = mBatteryLevelLow; 1332 mIsPowered = mBatteryManagerInternal.isPowered(BatteryManager.BATTERY_PLUGGED_ANY); 1333 mPlugType = mBatteryManagerInternal.getPlugType(); 1334 mBatteryLevel = mBatteryManagerInternal.getBatteryLevel(); 1335 mBatteryLevelLow = mBatteryManagerInternal.getBatteryLevelLow(); 1336 1337 if (DEBUG_SPEW) { 1338 Slog.d(TAG, "updateIsPoweredLocked: wasPowered=" + wasPowered 1339 + ", mIsPowered=" + mIsPowered 1340 + ", oldPlugType=" + oldPlugType 1341 + ", mPlugType=" + mPlugType 1342 + ", mBatteryLevel=" + mBatteryLevel); 1343 } 1344 1345 if (wasPowered != mIsPowered || oldPlugType != mPlugType) { 1346 mDirty |= DIRTY_IS_POWERED; 1347 1348 // Update wireless dock detection state. 1349 final boolean dockedOnWirelessCharger = mWirelessChargerDetector.update( 1350 mIsPowered, mPlugType, mBatteryLevel); 1351 1352 // Treat plugging and unplugging the devices as a user activity. 1353 // Users find it disconcerting when they plug or unplug the device 1354 // and it shuts off right away. 1355 // Some devices also wake the device when plugged or unplugged because 1356 // they don't have a charging LED. 1357 final long now = SystemClock.uptimeMillis(); 1358 if (shouldWakeUpWhenPluggedOrUnpluggedLocked(wasPowered, oldPlugType, 1359 dockedOnWirelessCharger)) { 1360 wakeUpNoUpdateLocked(now, "android.server.power:POWER", Process.SYSTEM_UID, 1361 mContext.getOpPackageName(), Process.SYSTEM_UID); 1362 } 1363 userActivityNoUpdateLocked( 1364 now, PowerManager.USER_ACTIVITY_EVENT_OTHER, 0, Process.SYSTEM_UID); 1365 1366 // Tell the notifier whether wireless charging has started so that 1367 // it can provide feedback to the user. 1368 if (dockedOnWirelessCharger) { 1369 mNotifier.onWirelessChargingStarted(); 1370 } 1371 } 1372 1373 if (wasPowered != mIsPowered || oldLevelLow != mBatteryLevelLow) { 1374 if (oldLevelLow != mBatteryLevelLow && !mBatteryLevelLow) { 1375 if (DEBUG_SPEW) { 1376 Slog.d(TAG, "updateIsPoweredLocked: resetting low power snooze"); 1377 } 1378 mAutoLowPowerModeSnoozing = false; 1379 } 1380 updateLowPowerModeLocked(); 1381 } 1382 } 1383 } 1384 1385 private boolean shouldWakeUpWhenPluggedOrUnpluggedLocked( 1386 boolean wasPowered, int oldPlugType, boolean dockedOnWirelessCharger) { 1387 // Don't wake when powered unless configured to do so. 1388 if (!mWakeUpWhenPluggedOrUnpluggedConfig) { 1389 return false; 1390 } 1391 1392 // Don't wake when undocked from wireless charger. 1393 // See WirelessChargerDetector for justification. 1394 if (wasPowered && !mIsPowered 1395 && oldPlugType == BatteryManager.BATTERY_PLUGGED_WIRELESS) { 1396 return false; 1397 } 1398 1399 // Don't wake when docked on wireless charger unless we are certain of it. 1400 // See WirelessChargerDetector for justification. 1401 if (!wasPowered && mIsPowered 1402 && mPlugType == BatteryManager.BATTERY_PLUGGED_WIRELESS 1403 && !dockedOnWirelessCharger) { 1404 return false; 1405 } 1406 1407 // If already dreaming and becoming powered, then don't wake. 1408 if (mIsPowered && mWakefulness == WAKEFULNESS_DREAMING) { 1409 return false; 1410 } 1411 1412 // Don't wake while theater mode is enabled. 1413 if (mTheaterModeEnabled && !mWakeUpWhenPluggedOrUnpluggedInTheaterModeConfig) { 1414 return false; 1415 } 1416 1417 // Otherwise wake up! 1418 return true; 1419 } 1420 1421 /** 1422 * Updates the value of mStayOn. 1423 * Sets DIRTY_STAY_ON if a change occurred. 1424 */ 1425 private void updateStayOnLocked(int dirty) { 1426 if ((dirty & (DIRTY_BATTERY_STATE | DIRTY_SETTINGS)) != 0) { 1427 final boolean wasStayOn = mStayOn; 1428 if (mStayOnWhilePluggedInSetting != 0 1429 && !isMaximumScreenOffTimeoutFromDeviceAdminEnforcedLocked()) { 1430 mStayOn = mBatteryManagerInternal.isPowered(mStayOnWhilePluggedInSetting); 1431 } else { 1432 mStayOn = false; 1433 } 1434 1435 if (mStayOn != wasStayOn) { 1436 mDirty |= DIRTY_STAY_ON; 1437 } 1438 } 1439 } 1440 1441 /** 1442 * Updates the value of mWakeLockSummary to summarize the state of all active wake locks. 1443 * Note that most wake-locks are ignored when the system is asleep. 1444 * 1445 * This function must have no other side-effects. 1446 */ 1447 @SuppressWarnings("deprecation") 1448 private void updateWakeLockSummaryLocked(int dirty) { 1449 if ((dirty & (DIRTY_WAKE_LOCKS | DIRTY_WAKEFULNESS)) != 0) { 1450 mWakeLockSummary = 0; 1451 1452 final int numWakeLocks = mWakeLocks.size(); 1453 for (int i = 0; i < numWakeLocks; i++) { 1454 final WakeLock wakeLock = mWakeLocks.get(i); 1455 switch (wakeLock.mFlags & PowerManager.WAKE_LOCK_LEVEL_MASK) { 1456 case PowerManager.PARTIAL_WAKE_LOCK: 1457 if (!wakeLock.mDisabled) { 1458 // We only respect this if the wake lock is not disabled. 1459 mWakeLockSummary |= WAKE_LOCK_CPU; 1460 } 1461 break; 1462 case PowerManager.FULL_WAKE_LOCK: 1463 mWakeLockSummary |= WAKE_LOCK_SCREEN_BRIGHT | WAKE_LOCK_BUTTON_BRIGHT; 1464 break; 1465 case PowerManager.SCREEN_BRIGHT_WAKE_LOCK: 1466 mWakeLockSummary |= WAKE_LOCK_SCREEN_BRIGHT; 1467 break; 1468 case PowerManager.SCREEN_DIM_WAKE_LOCK: 1469 mWakeLockSummary |= WAKE_LOCK_SCREEN_DIM; 1470 break; 1471 case PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK: 1472 mWakeLockSummary |= WAKE_LOCK_PROXIMITY_SCREEN_OFF; 1473 break; 1474 case PowerManager.DOZE_WAKE_LOCK: 1475 mWakeLockSummary |= WAKE_LOCK_DOZE; 1476 break; 1477 case PowerManager.DRAW_WAKE_LOCK: 1478 mWakeLockSummary |= WAKE_LOCK_DRAW; 1479 break; 1480 } 1481 } 1482 1483 // Cancel wake locks that make no sense based on the current state. 1484 if (mWakefulness != WAKEFULNESS_DOZING) { 1485 mWakeLockSummary &= ~(WAKE_LOCK_DOZE | WAKE_LOCK_DRAW); 1486 } 1487 if (mWakefulness == WAKEFULNESS_ASLEEP 1488 || (mWakeLockSummary & WAKE_LOCK_DOZE) != 0) { 1489 mWakeLockSummary &= ~(WAKE_LOCK_SCREEN_BRIGHT | WAKE_LOCK_SCREEN_DIM 1490 | WAKE_LOCK_BUTTON_BRIGHT); 1491 if (mWakefulness == WAKEFULNESS_ASLEEP) { 1492 mWakeLockSummary &= ~WAKE_LOCK_PROXIMITY_SCREEN_OFF; 1493 } 1494 } 1495 1496 // Infer implied wake locks where necessary based on the current state. 1497 if ((mWakeLockSummary & (WAKE_LOCK_SCREEN_BRIGHT | WAKE_LOCK_SCREEN_DIM)) != 0) { 1498 if (mWakefulness == WAKEFULNESS_AWAKE) { 1499 mWakeLockSummary |= WAKE_LOCK_CPU | WAKE_LOCK_STAY_AWAKE; 1500 } else if (mWakefulness == WAKEFULNESS_DREAMING) { 1501 mWakeLockSummary |= WAKE_LOCK_CPU; 1502 } 1503 } 1504 if ((mWakeLockSummary & WAKE_LOCK_DRAW) != 0) { 1505 mWakeLockSummary |= WAKE_LOCK_CPU; 1506 } 1507 1508 if (DEBUG_SPEW) { 1509 Slog.d(TAG, "updateWakeLockSummaryLocked: mWakefulness=" 1510 + PowerManagerInternal.wakefulnessToString(mWakefulness) 1511 + ", mWakeLockSummary=0x" + Integer.toHexString(mWakeLockSummary)); 1512 } 1513 } 1514 } 1515 1516 /** 1517 * Updates the value of mUserActivitySummary to summarize the user requested 1518 * state of the system such as whether the screen should be bright or dim. 1519 * Note that user activity is ignored when the system is asleep. 1520 * 1521 * This function must have no other side-effects. 1522 */ 1523 private void updateUserActivitySummaryLocked(long now, int dirty) { 1524 // Update the status of the user activity timeout timer. 1525 if ((dirty & (DIRTY_WAKE_LOCKS | DIRTY_USER_ACTIVITY 1526 | DIRTY_WAKEFULNESS | DIRTY_SETTINGS)) != 0) { 1527 mHandler.removeMessages(MSG_USER_ACTIVITY_TIMEOUT); 1528 1529 long nextTimeout = 0; 1530 if (mWakefulness == WAKEFULNESS_AWAKE 1531 || mWakefulness == WAKEFULNESS_DREAMING 1532 || mWakefulness == WAKEFULNESS_DOZING) { 1533 final int sleepTimeout = getSleepTimeoutLocked(); 1534 final int screenOffTimeout = getScreenOffTimeoutLocked(sleepTimeout); 1535 final int screenDimDuration = getScreenDimDurationLocked(screenOffTimeout); 1536 final boolean userInactiveOverride = mUserInactiveOverrideFromWindowManager; 1537 1538 mUserActivitySummary = 0; 1539 if (mLastUserActivityTime >= mLastWakeTime) { 1540 nextTimeout = mLastUserActivityTime 1541 + screenOffTimeout - screenDimDuration; 1542 if (now < nextTimeout) { 1543 mUserActivitySummary = USER_ACTIVITY_SCREEN_BRIGHT; 1544 } else { 1545 nextTimeout = mLastUserActivityTime + screenOffTimeout; 1546 if (now < nextTimeout) { 1547 mUserActivitySummary = USER_ACTIVITY_SCREEN_DIM; 1548 } 1549 } 1550 } 1551 if (mUserActivitySummary == 0 1552 && mLastUserActivityTimeNoChangeLights >= mLastWakeTime) { 1553 nextTimeout = mLastUserActivityTimeNoChangeLights + screenOffTimeout; 1554 if (now < nextTimeout) { 1555 if (mDisplayPowerRequest.policy == DisplayPowerRequest.POLICY_BRIGHT) { 1556 mUserActivitySummary = USER_ACTIVITY_SCREEN_BRIGHT; 1557 } else if (mDisplayPowerRequest.policy == DisplayPowerRequest.POLICY_DIM) { 1558 mUserActivitySummary = USER_ACTIVITY_SCREEN_DIM; 1559 } 1560 } 1561 } 1562 1563 if (mUserActivitySummary == 0) { 1564 if (sleepTimeout >= 0) { 1565 final long anyUserActivity = Math.max(mLastUserActivityTime, 1566 mLastUserActivityTimeNoChangeLights); 1567 if (anyUserActivity >= mLastWakeTime) { 1568 nextTimeout = anyUserActivity + sleepTimeout; 1569 if (now < nextTimeout) { 1570 mUserActivitySummary = USER_ACTIVITY_SCREEN_DREAM; 1571 } 1572 } 1573 } else { 1574 mUserActivitySummary = USER_ACTIVITY_SCREEN_DREAM; 1575 nextTimeout = -1; 1576 } 1577 } 1578 1579 if (mUserActivitySummary != USER_ACTIVITY_SCREEN_DREAM && userInactiveOverride) { 1580 mUserActivitySummary = USER_ACTIVITY_SCREEN_DREAM; 1581 nextTimeout = -1; 1582 } 1583 1584 if (mUserActivitySummary != 0 && nextTimeout >= 0) { 1585 Message msg = mHandler.obtainMessage(MSG_USER_ACTIVITY_TIMEOUT); 1586 msg.setAsynchronous(true); 1587 mHandler.sendMessageAtTime(msg, nextTimeout); 1588 } 1589 } else { 1590 mUserActivitySummary = 0; 1591 } 1592 1593 if (DEBUG_SPEW) { 1594 Slog.d(TAG, "updateUserActivitySummaryLocked: mWakefulness=" 1595 + PowerManagerInternal.wakefulnessToString(mWakefulness) 1596 + ", mUserActivitySummary=0x" + Integer.toHexString(mUserActivitySummary) 1597 + ", nextTimeout=" + TimeUtils.formatUptime(nextTimeout)); 1598 } 1599 } 1600 } 1601 1602 /** 1603 * Called when a user activity timeout has occurred. 1604 * Simply indicates that something about user activity has changed so that the new 1605 * state can be recomputed when the power state is updated. 1606 * 1607 * This function must have no other side-effects besides setting the dirty 1608 * bit and calling update power state. Wakefulness transitions are handled elsewhere. 1609 */ 1610 private void handleUserActivityTimeout() { // runs on handler thread 1611 synchronized (mLock) { 1612 if (DEBUG_SPEW) { 1613 Slog.d(TAG, "handleUserActivityTimeout"); 1614 } 1615 1616 mDirty |= DIRTY_USER_ACTIVITY; 1617 updatePowerStateLocked(); 1618 } 1619 } 1620 1621 private int getSleepTimeoutLocked() { 1622 int timeout = mSleepTimeoutSetting; 1623 if (timeout <= 0) { 1624 return -1; 1625 } 1626 return Math.max(timeout, mMinimumScreenOffTimeoutConfig); 1627 } 1628 1629 private int getScreenOffTimeoutLocked(int sleepTimeout) { 1630 int timeout = mScreenOffTimeoutSetting; 1631 if (isMaximumScreenOffTimeoutFromDeviceAdminEnforcedLocked()) { 1632 timeout = Math.min(timeout, mMaximumScreenOffTimeoutFromDeviceAdmin); 1633 } 1634 if (mUserActivityTimeoutOverrideFromWindowManager >= 0) { 1635 timeout = (int)Math.min(timeout, mUserActivityTimeoutOverrideFromWindowManager); 1636 } 1637 if (sleepTimeout >= 0) { 1638 timeout = Math.min(timeout, sleepTimeout); 1639 } 1640 return Math.max(timeout, mMinimumScreenOffTimeoutConfig); 1641 } 1642 1643 private int getScreenDimDurationLocked(int screenOffTimeout) { 1644 return Math.min(mMaximumScreenDimDurationConfig, 1645 (int)(screenOffTimeout * mMaximumScreenDimRatioConfig)); 1646 } 1647 1648 /** 1649 * Updates the wakefulness of the device. 1650 * 1651 * This is the function that decides whether the device should start dreaming 1652 * based on the current wake locks and user activity state. It may modify mDirty 1653 * if the wakefulness changes. 1654 * 1655 * Returns true if the wakefulness changed and we need to restart power state calculation. 1656 */ 1657 private boolean updateWakefulnessLocked(int dirty) { 1658 boolean changed = false; 1659 if ((dirty & (DIRTY_WAKE_LOCKS | DIRTY_USER_ACTIVITY | DIRTY_BOOT_COMPLETED 1660 | DIRTY_WAKEFULNESS | DIRTY_STAY_ON | DIRTY_PROXIMITY_POSITIVE 1661 | DIRTY_DOCK_STATE)) != 0) { 1662 if (mWakefulness == WAKEFULNESS_AWAKE && isItBedTimeYetLocked()) { 1663 if (DEBUG_SPEW) { 1664 Slog.d(TAG, "updateWakefulnessLocked: Bed time..."); 1665 } 1666 final long time = SystemClock.uptimeMillis(); 1667 if (shouldNapAtBedTimeLocked()) { 1668 changed = napNoUpdateLocked(time, Process.SYSTEM_UID); 1669 } else { 1670 changed = goToSleepNoUpdateLocked(time, 1671 PowerManager.GO_TO_SLEEP_REASON_TIMEOUT, 0, Process.SYSTEM_UID); 1672 } 1673 } 1674 } 1675 return changed; 1676 } 1677 1678 /** 1679 * Returns true if the device should automatically nap and start dreaming when the user 1680 * activity timeout has expired and it's bedtime. 1681 */ 1682 private boolean shouldNapAtBedTimeLocked() { 1683 return mDreamsActivateOnSleepSetting 1684 || (mDreamsActivateOnDockSetting 1685 && mDockState != Intent.EXTRA_DOCK_STATE_UNDOCKED); 1686 } 1687 1688 /** 1689 * Returns true if the device should go to sleep now. 1690 * Also used when exiting a dream to determine whether we should go back 1691 * to being fully awake or else go to sleep for good. 1692 */ 1693 private boolean isItBedTimeYetLocked() { 1694 return mBootCompleted && !isBeingKeptAwakeLocked(); 1695 } 1696 1697 /** 1698 * Returns true if the device is being kept awake by a wake lock, user activity 1699 * or the stay on while powered setting. We also keep the phone awake when 1700 * the proximity sensor returns a positive result so that the device does not 1701 * lock while in a phone call. This function only controls whether the device 1702 * will go to sleep or dream which is independent of whether it will be allowed 1703 * to suspend. 1704 */ 1705 private boolean isBeingKeptAwakeLocked() { 1706 return mStayOn 1707 || mProximityPositive 1708 || (mWakeLockSummary & WAKE_LOCK_STAY_AWAKE) != 0 1709 || (mUserActivitySummary & (USER_ACTIVITY_SCREEN_BRIGHT 1710 | USER_ACTIVITY_SCREEN_DIM)) != 0 1711 || mScreenBrightnessBoostInProgress; 1712 } 1713 1714 /** 1715 * Determines whether to post a message to the sandman to update the dream state. 1716 */ 1717 private void updateDreamLocked(int dirty, boolean displayBecameReady) { 1718 if ((dirty & (DIRTY_WAKEFULNESS 1719 | DIRTY_USER_ACTIVITY 1720 | DIRTY_WAKE_LOCKS 1721 | DIRTY_BOOT_COMPLETED 1722 | DIRTY_SETTINGS 1723 | DIRTY_IS_POWERED 1724 | DIRTY_STAY_ON 1725 | DIRTY_PROXIMITY_POSITIVE 1726 | DIRTY_BATTERY_STATE)) != 0 || displayBecameReady) { 1727 if (mDisplayReady) { 1728 scheduleSandmanLocked(); 1729 } 1730 } 1731 } 1732 1733 private void scheduleSandmanLocked() { 1734 if (!mSandmanScheduled) { 1735 mSandmanScheduled = true; 1736 Message msg = mHandler.obtainMessage(MSG_SANDMAN); 1737 msg.setAsynchronous(true); 1738 mHandler.sendMessage(msg); 1739 } 1740 } 1741 1742 /** 1743 * Called when the device enters or exits a dreaming or dozing state. 1744 * 1745 * We do this asynchronously because we must call out of the power manager to start 1746 * the dream and we don't want to hold our lock while doing so. There is a risk that 1747 * the device will wake or go to sleep in the meantime so we have to handle that case. 1748 */ 1749 private void handleSandman() { // runs on handler thread 1750 // Handle preconditions. 1751 final boolean startDreaming; 1752 final int wakefulness; 1753 synchronized (mLock) { 1754 mSandmanScheduled = false; 1755 wakefulness = mWakefulness; 1756 if (mSandmanSummoned && mDisplayReady) { 1757 startDreaming = canDreamLocked() || canDozeLocked(); 1758 mSandmanSummoned = false; 1759 } else { 1760 startDreaming = false; 1761 } 1762 } 1763 1764 // Start dreaming if needed. 1765 // We only control the dream on the handler thread, so we don't need to worry about 1766 // concurrent attempts to start or stop the dream. 1767 final boolean isDreaming; 1768 if (mDreamManager != null) { 1769 // Restart the dream whenever the sandman is summoned. 1770 if (startDreaming) { 1771 mDreamManager.stopDream(false /*immediate*/); 1772 mDreamManager.startDream(wakefulness == WAKEFULNESS_DOZING); 1773 } 1774 isDreaming = mDreamManager.isDreaming(); 1775 } else { 1776 isDreaming = false; 1777 } 1778 1779 // Update dream state. 1780 synchronized (mLock) { 1781 // Remember the initial battery level when the dream started. 1782 if (startDreaming && isDreaming) { 1783 mBatteryLevelWhenDreamStarted = mBatteryLevel; 1784 if (wakefulness == WAKEFULNESS_DOZING) { 1785 Slog.i(TAG, "Dozing..."); 1786 } else { 1787 Slog.i(TAG, "Dreaming..."); 1788 } 1789 } 1790 1791 // If preconditions changed, wait for the next iteration to determine 1792 // whether the dream should continue (or be restarted). 1793 if (mSandmanSummoned || mWakefulness != wakefulness) { 1794 return; // wait for next cycle 1795 } 1796 1797 // Determine whether the dream should continue. 1798 if (wakefulness == WAKEFULNESS_DREAMING) { 1799 if (isDreaming && canDreamLocked()) { 1800 if (mDreamsBatteryLevelDrainCutoffConfig >= 0 1801 && mBatteryLevel < mBatteryLevelWhenDreamStarted 1802 - mDreamsBatteryLevelDrainCutoffConfig 1803 && !isBeingKeptAwakeLocked()) { 1804 // If the user activity timeout expired and the battery appears 1805 // to be draining faster than it is charging then stop dreaming 1806 // and go to sleep. 1807 Slog.i(TAG, "Stopping dream because the battery appears to " 1808 + "be draining faster than it is charging. " 1809 + "Battery level when dream started: " 1810 + mBatteryLevelWhenDreamStarted + "%. " 1811 + "Battery level now: " + mBatteryLevel + "%."); 1812 } else { 1813 return; // continue dreaming 1814 } 1815 } 1816 1817 // Dream has ended or will be stopped. Update the power state. 1818 if (isItBedTimeYetLocked()) { 1819 goToSleepNoUpdateLocked(SystemClock.uptimeMillis(), 1820 PowerManager.GO_TO_SLEEP_REASON_TIMEOUT, 0, Process.SYSTEM_UID); 1821 updatePowerStateLocked(); 1822 } else { 1823 wakeUpNoUpdateLocked(SystemClock.uptimeMillis(), "android.server.power:DREAM", 1824 Process.SYSTEM_UID, mContext.getOpPackageName(), Process.SYSTEM_UID); 1825 updatePowerStateLocked(); 1826 } 1827 } else if (wakefulness == WAKEFULNESS_DOZING) { 1828 if (isDreaming) { 1829 return; // continue dozing 1830 } 1831 1832 // Doze has ended or will be stopped. Update the power state. 1833 reallyGoToSleepNoUpdateLocked(SystemClock.uptimeMillis(), Process.SYSTEM_UID); 1834 updatePowerStateLocked(); 1835 } 1836 } 1837 1838 // Stop dream. 1839 if (isDreaming) { 1840 mDreamManager.stopDream(false /*immediate*/); 1841 } 1842 } 1843 1844 /** 1845 * Returns true if the device is allowed to dream in its current state. 1846 */ 1847 private boolean canDreamLocked() { 1848 if (mWakefulness != WAKEFULNESS_DREAMING 1849 || !mDreamsSupportedConfig 1850 || !mDreamsEnabledSetting 1851 || !mDisplayPowerRequest.isBrightOrDim() 1852 || (mUserActivitySummary & (USER_ACTIVITY_SCREEN_BRIGHT 1853 | USER_ACTIVITY_SCREEN_DIM | USER_ACTIVITY_SCREEN_DREAM)) == 0 1854 || !mBootCompleted) { 1855 return false; 1856 } 1857 if (!isBeingKeptAwakeLocked()) { 1858 if (!mIsPowered && !mDreamsEnabledOnBatteryConfig) { 1859 return false; 1860 } 1861 if (!mIsPowered 1862 && mDreamsBatteryLevelMinimumWhenNotPoweredConfig >= 0 1863 && mBatteryLevel < mDreamsBatteryLevelMinimumWhenNotPoweredConfig) { 1864 return false; 1865 } 1866 if (mIsPowered 1867 && mDreamsBatteryLevelMinimumWhenPoweredConfig >= 0 1868 && mBatteryLevel < mDreamsBatteryLevelMinimumWhenPoweredConfig) { 1869 return false; 1870 } 1871 } 1872 return true; 1873 } 1874 1875 /** 1876 * Returns true if the device is allowed to doze in its current state. 1877 */ 1878 private boolean canDozeLocked() { 1879 return mWakefulness == WAKEFULNESS_DOZING; 1880 } 1881 1882 /** 1883 * Updates the display power state asynchronously. 1884 * When the update is finished, mDisplayReady will be set to true. The display 1885 * controller posts a message to tell us when the actual display power state 1886 * has been updated so we come back here to double-check and finish up. 1887 * 1888 * This function recalculates the display power state each time. 1889 * 1890 * @return True if the display became ready. 1891 */ 1892 private boolean updateDisplayPowerStateLocked(int dirty) { 1893 final boolean oldDisplayReady = mDisplayReady; 1894 if ((dirty & (DIRTY_WAKE_LOCKS | DIRTY_USER_ACTIVITY | DIRTY_WAKEFULNESS 1895 | DIRTY_ACTUAL_DISPLAY_POWER_STATE_UPDATED | DIRTY_BOOT_COMPLETED 1896 | DIRTY_SETTINGS | DIRTY_SCREEN_BRIGHTNESS_BOOST)) != 0) { 1897 mDisplayPowerRequest.policy = getDesiredScreenPolicyLocked(); 1898 1899 // Determine appropriate screen brightness and auto-brightness adjustments. 1900 boolean brightnessSetByUser = true; 1901 int screenBrightness = mScreenBrightnessSettingDefault; 1902 float screenAutoBrightnessAdjustment = 0.0f; 1903 boolean autoBrightness = (mScreenBrightnessModeSetting == 1904 Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC); 1905 if (isValidBrightness(mScreenBrightnessOverrideFromWindowManager)) { 1906 screenBrightness = mScreenBrightnessOverrideFromWindowManager; 1907 autoBrightness = false; 1908 brightnessSetByUser = false; 1909 } else if (isValidBrightness(mTemporaryScreenBrightnessSettingOverride)) { 1910 screenBrightness = mTemporaryScreenBrightnessSettingOverride; 1911 } else if (isValidBrightness(mScreenBrightnessSetting)) { 1912 screenBrightness = mScreenBrightnessSetting; 1913 } 1914 if (autoBrightness) { 1915 screenBrightness = mScreenBrightnessSettingDefault; 1916 if (isValidAutoBrightnessAdjustment( 1917 mTemporaryScreenAutoBrightnessAdjustmentSettingOverride)) { 1918 screenAutoBrightnessAdjustment = 1919 mTemporaryScreenAutoBrightnessAdjustmentSettingOverride; 1920 } else if (isValidAutoBrightnessAdjustment( 1921 mScreenAutoBrightnessAdjustmentSetting)) { 1922 screenAutoBrightnessAdjustment = mScreenAutoBrightnessAdjustmentSetting; 1923 } 1924 } 1925 screenBrightness = Math.max(Math.min(screenBrightness, 1926 mScreenBrightnessSettingMaximum), mScreenBrightnessSettingMinimum); 1927 screenAutoBrightnessAdjustment = Math.max(Math.min( 1928 screenAutoBrightnessAdjustment, 1.0f), -1.0f); 1929 1930 // Update display power request. 1931 mDisplayPowerRequest.screenBrightness = screenBrightness; 1932 mDisplayPowerRequest.screenAutoBrightnessAdjustment = 1933 screenAutoBrightnessAdjustment; 1934 mDisplayPowerRequest.brightnessSetByUser = brightnessSetByUser; 1935 mDisplayPowerRequest.useAutoBrightness = autoBrightness; 1936 mDisplayPowerRequest.useProximitySensor = shouldUseProximitySensorLocked(); 1937 mDisplayPowerRequest.lowPowerMode = mLowPowerModeEnabled; 1938 mDisplayPowerRequest.boostScreenBrightness = mScreenBrightnessBoostInProgress; 1939 1940 if (mDisplayPowerRequest.policy == DisplayPowerRequest.POLICY_DOZE) { 1941 mDisplayPowerRequest.dozeScreenState = mDozeScreenStateOverrideFromDreamManager; 1942 if (mDisplayPowerRequest.dozeScreenState == Display.STATE_DOZE_SUSPEND 1943 && (mWakeLockSummary & WAKE_LOCK_DRAW) != 0) { 1944 mDisplayPowerRequest.dozeScreenState = Display.STATE_DOZE; 1945 } 1946 mDisplayPowerRequest.dozeScreenBrightness = 1947 mDozeScreenBrightnessOverrideFromDreamManager; 1948 } else { 1949 mDisplayPowerRequest.dozeScreenState = Display.STATE_UNKNOWN; 1950 mDisplayPowerRequest.dozeScreenBrightness = PowerManager.BRIGHTNESS_DEFAULT; 1951 } 1952 1953 mDisplayReady = mDisplayManagerInternal.requestPowerState(mDisplayPowerRequest, 1954 mRequestWaitForNegativeProximity); 1955 mRequestWaitForNegativeProximity = false; 1956 1957 if (DEBUG_SPEW) { 1958 Slog.d(TAG, "updateDisplayPowerStateLocked: mDisplayReady=" + mDisplayReady 1959 + ", policy=" + mDisplayPowerRequest.policy 1960 + ", mWakefulness=" + mWakefulness 1961 + ", mWakeLockSummary=0x" + Integer.toHexString(mWakeLockSummary) 1962 + ", mUserActivitySummary=0x" + Integer.toHexString(mUserActivitySummary) 1963 + ", mBootCompleted=" + mBootCompleted 1964 + ", mScreenBrightnessBoostInProgress=" 1965 + mScreenBrightnessBoostInProgress); 1966 } 1967 } 1968 return mDisplayReady && !oldDisplayReady; 1969 } 1970 1971 private void updateScreenBrightnessBoostLocked(int dirty) { 1972 if ((dirty & DIRTY_SCREEN_BRIGHTNESS_BOOST) != 0) { 1973 if (mScreenBrightnessBoostInProgress) { 1974 final long now = SystemClock.uptimeMillis(); 1975 mHandler.removeMessages(MSG_SCREEN_BRIGHTNESS_BOOST_TIMEOUT); 1976 if (mLastScreenBrightnessBoostTime > mLastSleepTime) { 1977 final long boostTimeout = mLastScreenBrightnessBoostTime + 1978 SCREEN_BRIGHTNESS_BOOST_TIMEOUT; 1979 if (boostTimeout > now) { 1980 Message msg = mHandler.obtainMessage(MSG_SCREEN_BRIGHTNESS_BOOST_TIMEOUT); 1981 msg.setAsynchronous(true); 1982 mHandler.sendMessageAtTime(msg, boostTimeout); 1983 return; 1984 } 1985 } 1986 mScreenBrightnessBoostInProgress = false; 1987 mNotifier.onScreenBrightnessBoostChanged(); 1988 userActivityNoUpdateLocked(now, 1989 PowerManager.USER_ACTIVITY_EVENT_OTHER, 0, Process.SYSTEM_UID); 1990 } 1991 } 1992 } 1993 1994 private static boolean isValidBrightness(int value) { 1995 return value >= 0 && value <= 255; 1996 } 1997 1998 private static boolean isValidAutoBrightnessAdjustment(float value) { 1999 // Handles NaN by always returning false. 2000 return value >= -1.0f && value <= 1.0f; 2001 } 2002 2003 private int getDesiredScreenPolicyLocked() { 2004 if (mWakefulness == WAKEFULNESS_ASLEEP) { 2005 return DisplayPowerRequest.POLICY_OFF; 2006 } 2007 2008 if (mWakefulness == WAKEFULNESS_DOZING) { 2009 if ((mWakeLockSummary & WAKE_LOCK_DOZE) != 0) { 2010 return DisplayPowerRequest.POLICY_DOZE; 2011 } 2012 if (mDozeAfterScreenOffConfig) { 2013 return DisplayPowerRequest.POLICY_OFF; 2014 } 2015 // Fall through and preserve the current screen policy if not configured to 2016 // doze after screen off. This causes the screen off transition to be skipped. 2017 } 2018 2019 if ((mWakeLockSummary & WAKE_LOCK_SCREEN_BRIGHT) != 0 2020 || (mUserActivitySummary & USER_ACTIVITY_SCREEN_BRIGHT) != 0 2021 || !mBootCompleted 2022 || mScreenBrightnessBoostInProgress) { 2023 return DisplayPowerRequest.POLICY_BRIGHT; 2024 } 2025 2026 return DisplayPowerRequest.POLICY_DIM; 2027 } 2028 2029 private final DisplayManagerInternal.DisplayPowerCallbacks mDisplayPowerCallbacks = 2030 new DisplayManagerInternal.DisplayPowerCallbacks() { 2031 private int mDisplayState = Display.STATE_UNKNOWN; 2032 2033 @Override 2034 public void onStateChanged() { 2035 synchronized (mLock) { 2036 mDirty |= DIRTY_ACTUAL_DISPLAY_POWER_STATE_UPDATED; 2037 updatePowerStateLocked(); 2038 } 2039 } 2040 2041 @Override 2042 public void onProximityPositive() { 2043 synchronized (mLock) { 2044 mProximityPositive = true; 2045 mDirty |= DIRTY_PROXIMITY_POSITIVE; 2046 updatePowerStateLocked(); 2047 } 2048 } 2049 2050 @Override 2051 public void onProximityNegative() { 2052 synchronized (mLock) { 2053 mProximityPositive = false; 2054 mDirty |= DIRTY_PROXIMITY_POSITIVE; 2055 userActivityNoUpdateLocked(SystemClock.uptimeMillis(), 2056 PowerManager.USER_ACTIVITY_EVENT_OTHER, 0, Process.SYSTEM_UID); 2057 updatePowerStateLocked(); 2058 } 2059 } 2060 2061 @Override 2062 public void onDisplayStateChange(int state) { 2063 // This method is only needed to support legacy display blanking behavior 2064 // where the display's power state is coupled to suspend or to the power HAL. 2065 // The order of operations matters here. 2066 synchronized (mLock) { 2067 if (mDisplayState != state) { 2068 mDisplayState = state; 2069 if (state == Display.STATE_OFF) { 2070 if (!mDecoupleHalInteractiveModeFromDisplayConfig) { 2071 setHalInteractiveModeLocked(false); 2072 } 2073 if (!mDecoupleHalAutoSuspendModeFromDisplayConfig) { 2074 setHalAutoSuspendModeLocked(true); 2075 } 2076 } else { 2077 if (!mDecoupleHalAutoSuspendModeFromDisplayConfig) { 2078 setHalAutoSuspendModeLocked(false); 2079 } 2080 if (!mDecoupleHalInteractiveModeFromDisplayConfig) { 2081 setHalInteractiveModeLocked(true); 2082 } 2083 } 2084 } 2085 } 2086 } 2087 2088 @Override 2089 public void acquireSuspendBlocker() { 2090 mDisplaySuspendBlocker.acquire(); 2091 } 2092 2093 @Override 2094 public void releaseSuspendBlocker() { 2095 mDisplaySuspendBlocker.release(); 2096 } 2097 2098 @Override 2099 public String toString() { 2100 synchronized (this) { 2101 return "state=" + Display.stateToString(mDisplayState); 2102 } 2103 } 2104 }; 2105 2106 private boolean shouldUseProximitySensorLocked() { 2107 return (mWakeLockSummary & WAKE_LOCK_PROXIMITY_SCREEN_OFF) != 0; 2108 } 2109 2110 /** 2111 * Updates the suspend blocker that keeps the CPU alive. 2112 * 2113 * This function must have no other side-effects. 2114 */ 2115 private void updateSuspendBlockerLocked() { 2116 final boolean needWakeLockSuspendBlocker = ((mWakeLockSummary & WAKE_LOCK_CPU) != 0); 2117 final boolean needDisplaySuspendBlocker = needDisplaySuspendBlockerLocked(); 2118 final boolean autoSuspend = !needDisplaySuspendBlocker; 2119 final boolean interactive = mDisplayPowerRequest.isBrightOrDim(); 2120 2121 // Disable auto-suspend if needed. 2122 // FIXME We should consider just leaving auto-suspend enabled forever since 2123 // we already hold the necessary wakelocks. 2124 if (!autoSuspend && mDecoupleHalAutoSuspendModeFromDisplayConfig) { 2125 setHalAutoSuspendModeLocked(false); 2126 } 2127 2128 // First acquire suspend blockers if needed. 2129 if (needWakeLockSuspendBlocker && !mHoldingWakeLockSuspendBlocker) { 2130 mWakeLockSuspendBlocker.acquire(); 2131 mHoldingWakeLockSuspendBlocker = true; 2132 } 2133 if (needDisplaySuspendBlocker && !mHoldingDisplaySuspendBlocker) { 2134 mDisplaySuspendBlocker.acquire(); 2135 mHoldingDisplaySuspendBlocker = true; 2136 } 2137 2138 // Inform the power HAL about interactive mode. 2139 // Although we could set interactive strictly based on the wakefulness 2140 // as reported by isInteractive(), it is actually more desirable to track 2141 // the display policy state instead so that the interactive state observed 2142 // by the HAL more accurately tracks transitions between AWAKE and DOZING. 2143 // Refer to getDesiredScreenPolicyLocked() for details. 2144 if (mDecoupleHalInteractiveModeFromDisplayConfig) { 2145 // When becoming non-interactive, we want to defer sending this signal 2146 // until the display is actually ready so that all transitions have 2147 // completed. This is probably a good sign that things have gotten 2148 // too tangled over here... 2149 if (interactive || mDisplayReady) { 2150 setHalInteractiveModeLocked(interactive); 2151 } 2152 } 2153 2154 // Then release suspend blockers if needed. 2155 if (!needWakeLockSuspendBlocker && mHoldingWakeLockSuspendBlocker) { 2156 mWakeLockSuspendBlocker.release(); 2157 mHoldingWakeLockSuspendBlocker = false; 2158 } 2159 if (!needDisplaySuspendBlocker && mHoldingDisplaySuspendBlocker) { 2160 mDisplaySuspendBlocker.release(); 2161 mHoldingDisplaySuspendBlocker = false; 2162 } 2163 2164 // Enable auto-suspend if needed. 2165 if (autoSuspend && mDecoupleHalAutoSuspendModeFromDisplayConfig) { 2166 setHalAutoSuspendModeLocked(true); 2167 } 2168 } 2169 2170 /** 2171 * Return true if we must keep a suspend blocker active on behalf of the display. 2172 * We do so if the screen is on or is in transition between states. 2173 */ 2174 private boolean needDisplaySuspendBlockerLocked() { 2175 if (!mDisplayReady) { 2176 return true; 2177 } 2178 if (mDisplayPowerRequest.isBrightOrDim()) { 2179 // If we asked for the screen to be on but it is off due to the proximity 2180 // sensor then we may suspend but only if the configuration allows it. 2181 // On some hardware it may not be safe to suspend because the proximity 2182 // sensor may not be correctly configured as a wake-up source. 2183 if (!mDisplayPowerRequest.useProximitySensor || !mProximityPositive 2184 || !mSuspendWhenScreenOffDueToProximityConfig) { 2185 return true; 2186 } 2187 } 2188 if (mScreenBrightnessBoostInProgress) { 2189 return true; 2190 } 2191 // Let the system suspend if the screen is off or dozing. 2192 return false; 2193 } 2194 2195 private void setHalAutoSuspendModeLocked(boolean enable) { 2196 if (enable != mHalAutoSuspendModeEnabled) { 2197 if (DEBUG) { 2198 Slog.d(TAG, "Setting HAL auto-suspend mode to " + enable); 2199 } 2200 mHalAutoSuspendModeEnabled = enable; 2201 Trace.traceBegin(Trace.TRACE_TAG_POWER, "setHalAutoSuspend(" + enable + ")"); 2202 try { 2203 nativeSetAutoSuspend(enable); 2204 } finally { 2205 Trace.traceEnd(Trace.TRACE_TAG_POWER); 2206 } 2207 } 2208 } 2209 2210 private void setHalInteractiveModeLocked(boolean enable) { 2211 if (enable != mHalInteractiveModeEnabled) { 2212 if (DEBUG) { 2213 Slog.d(TAG, "Setting HAL interactive mode to " + enable); 2214 } 2215 mHalInteractiveModeEnabled = enable; 2216 Trace.traceBegin(Trace.TRACE_TAG_POWER, "setHalInteractive(" + enable + ")"); 2217 try { 2218 nativeSetInteractive(enable); 2219 } finally { 2220 Trace.traceEnd(Trace.TRACE_TAG_POWER); 2221 } 2222 } 2223 } 2224 2225 private boolean isInteractiveInternal() { 2226 synchronized (mLock) { 2227 return PowerManagerInternal.isInteractive(mWakefulness); 2228 } 2229 } 2230 2231 private boolean isLowPowerModeInternal() { 2232 synchronized (mLock) { 2233 return mLowPowerModeEnabled; 2234 } 2235 } 2236 2237 private boolean setLowPowerModeInternal(boolean mode) { 2238 synchronized (mLock) { 2239 if (DEBUG) Slog.d(TAG, "setLowPowerModeInternal " + mode + " mIsPowered=" + mIsPowered); 2240 if (mIsPowered) { 2241 return false; 2242 } 2243 Settings.Global.putInt(mContext.getContentResolver(), 2244 Settings.Global.LOW_POWER_MODE, mode ? 1 : 0); 2245 mLowPowerModeSetting = mode; 2246 2247 if (mAutoLowPowerModeConfigured && mBatteryLevelLow) { 2248 if (mode && mAutoLowPowerModeSnoozing) { 2249 if (DEBUG_SPEW) { 2250 Slog.d(TAG, "setLowPowerModeInternal: clearing low power mode snooze"); 2251 } 2252 mAutoLowPowerModeSnoozing = false; 2253 } else if (!mode && !mAutoLowPowerModeSnoozing) { 2254 if (DEBUG_SPEW) { 2255 Slog.d(TAG, "setLowPowerModeInternal: snoozing low power mode"); 2256 } 2257 mAutoLowPowerModeSnoozing = true; 2258 } 2259 } 2260 2261 updateLowPowerModeLocked(); 2262 return true; 2263 } 2264 } 2265 2266 private boolean isDeviceIdleModeInternal() { 2267 synchronized (mLock) { 2268 return mDeviceIdleMode; 2269 } 2270 } 2271 2272 private void handleBatteryStateChangedLocked() { 2273 mDirty |= DIRTY_BATTERY_STATE; 2274 updatePowerStateLocked(); 2275 } 2276 2277 private void shutdownOrRebootInternal(final boolean shutdown, final boolean confirm, 2278 final String reason, boolean wait) { 2279 if (mHandler == null || !mSystemReady) { 2280 throw new IllegalStateException("Too early to call shutdown() or reboot()"); 2281 } 2282 2283 Runnable runnable = new Runnable() { 2284 @Override 2285 public void run() { 2286 synchronized (this) { 2287 if (shutdown) { 2288 ShutdownThread.shutdown(mContext, confirm); 2289 } else { 2290 ShutdownThread.reboot(mContext, reason, confirm); 2291 } 2292 } 2293 } 2294 }; 2295 2296 // ShutdownThread must run on a looper capable of displaying the UI. 2297 Message msg = Message.obtain(mHandler, runnable); 2298 msg.setAsynchronous(true); 2299 mHandler.sendMessage(msg); 2300 2301 // PowerManager.reboot() is documented not to return so just wait for the inevitable. 2302 if (wait) { 2303 synchronized (runnable) { 2304 while (true) { 2305 try { 2306 runnable.wait(); 2307 } catch (InterruptedException e) { 2308 } 2309 } 2310 } 2311 } 2312 } 2313 2314 private void crashInternal(final String message) { 2315 Thread t = new Thread("PowerManagerService.crash()") { 2316 @Override 2317 public void run() { 2318 throw new RuntimeException(message); 2319 } 2320 }; 2321 try { 2322 t.start(); 2323 t.join(); 2324 } catch (InterruptedException e) { 2325 Slog.wtf(TAG, e); 2326 } 2327 } 2328 2329 void setStayOnSettingInternal(int val) { 2330 Settings.Global.putInt(mContext.getContentResolver(), 2331 Settings.Global.STAY_ON_WHILE_PLUGGED_IN, val); 2332 } 2333 2334 void setMaximumScreenOffTimeoutFromDeviceAdminInternal(int timeMs) { 2335 synchronized (mLock) { 2336 mMaximumScreenOffTimeoutFromDeviceAdmin = timeMs; 2337 mDirty |= DIRTY_SETTINGS; 2338 updatePowerStateLocked(); 2339 } 2340 } 2341 2342 void setDeviceIdleModeInternal(boolean enabled) { 2343 synchronized (mLock) { 2344 if (mDeviceIdleMode != enabled) { 2345 mDeviceIdleMode = enabled; 2346 updateWakeLockDisabledStatesLocked(); 2347 if (enabled) { 2348 EventLogTags.writeDeviceIdleOnPhase("power"); 2349 } else { 2350 EventLogTags.writeDeviceIdleOffPhase("power"); 2351 } 2352 } 2353 } 2354 } 2355 2356 void setDeviceIdleWhitelistInternal(int[] appids) { 2357 synchronized (mLock) { 2358 mDeviceIdleWhitelist = appids; 2359 if (mDeviceIdleMode) { 2360 updateWakeLockDisabledStatesLocked(); 2361 } 2362 } 2363 } 2364 2365 void setDeviceIdleTempWhitelistInternal(int[] appids) { 2366 synchronized (mLock) { 2367 mDeviceIdleTempWhitelist = appids; 2368 if (mDeviceIdleMode) { 2369 updateWakeLockDisabledStatesLocked(); 2370 } 2371 } 2372 } 2373 2374 void updateUidProcStateInternal(int uid, int procState) { 2375 synchronized (mLock) { 2376 mUidState.put(uid, procState); 2377 if (mDeviceIdleMode) { 2378 updateWakeLockDisabledStatesLocked(); 2379 } 2380 } 2381 } 2382 2383 void uidGoneInternal(int uid) { 2384 synchronized (mLock) { 2385 mUidState.delete(uid); 2386 if (mDeviceIdleMode) { 2387 updateWakeLockDisabledStatesLocked(); 2388 } 2389 } 2390 } 2391 2392 private void updateWakeLockDisabledStatesLocked() { 2393 boolean changed = false; 2394 final int numWakeLocks = mWakeLocks.size(); 2395 for (int i = 0; i < numWakeLocks; i++) { 2396 final WakeLock wakeLock = mWakeLocks.get(i); 2397 if ((wakeLock.mFlags & PowerManager.WAKE_LOCK_LEVEL_MASK) 2398 == PowerManager.PARTIAL_WAKE_LOCK) { 2399 if (setWakeLockDisabledStateLocked(wakeLock)) { 2400 changed = true; 2401 if (wakeLock.mDisabled) { 2402 // This wake lock is no longer being respected. 2403 notifyWakeLockReleasedLocked(wakeLock); 2404 } else { 2405 notifyWakeLockAcquiredLocked(wakeLock); 2406 } 2407 } 2408 } 2409 } 2410 if (changed) { 2411 mDirty |= DIRTY_WAKE_LOCKS; 2412 updatePowerStateLocked(); 2413 } 2414 } 2415 2416 private boolean setWakeLockDisabledStateLocked(WakeLock wakeLock) { 2417 if ((wakeLock.mFlags & PowerManager.WAKE_LOCK_LEVEL_MASK) 2418 == PowerManager.PARTIAL_WAKE_LOCK) { 2419 boolean disabled = false; 2420 if (mDeviceIdleMode) { 2421 final int appid = UserHandle.getAppId(wakeLock.mOwnerUid); 2422 // If we are in idle mode, we will ignore all partial wake locks that are 2423 // for application uids that are not whitelisted. 2424 if (appid >= Process.FIRST_APPLICATION_UID && 2425 Arrays.binarySearch(mDeviceIdleWhitelist, appid) < 0 && 2426 Arrays.binarySearch(mDeviceIdleTempWhitelist, appid) < 0 && 2427 mUidState.get(wakeLock.mOwnerUid, 2428 ActivityManager.PROCESS_STATE_CACHED_EMPTY) 2429 > ActivityManager.PROCESS_STATE_FOREGROUND_SERVICE) { 2430 disabled = true; 2431 } 2432 } 2433 if (wakeLock.mDisabled != disabled) { 2434 wakeLock.mDisabled = disabled; 2435 return true; 2436 } 2437 } 2438 return false; 2439 } 2440 2441 private boolean isMaximumScreenOffTimeoutFromDeviceAdminEnforcedLocked() { 2442 return mMaximumScreenOffTimeoutFromDeviceAdmin >= 0 2443 && mMaximumScreenOffTimeoutFromDeviceAdmin < Integer.MAX_VALUE; 2444 } 2445 2446 private void setAttentionLightInternal(boolean on, int color) { 2447 Light light; 2448 synchronized (mLock) { 2449 if (!mSystemReady) { 2450 return; 2451 } 2452 light = mAttentionLight; 2453 } 2454 2455 // Control light outside of lock. 2456 light.setFlashing(color, Light.LIGHT_FLASH_HARDWARE, (on ? 3 : 0), 0); 2457 } 2458 2459 private void boostScreenBrightnessInternal(long eventTime, int uid) { 2460 synchronized (mLock) { 2461 if (!mSystemReady || mWakefulness == WAKEFULNESS_ASLEEP 2462 || eventTime < mLastScreenBrightnessBoostTime) { 2463 return; 2464 } 2465 2466 Slog.i(TAG, "Brightness boost activated (uid " + uid +")..."); 2467 mLastScreenBrightnessBoostTime = eventTime; 2468 if (!mScreenBrightnessBoostInProgress) { 2469 mScreenBrightnessBoostInProgress = true; 2470 mNotifier.onScreenBrightnessBoostChanged(); 2471 } 2472 mDirty |= DIRTY_SCREEN_BRIGHTNESS_BOOST; 2473 2474 userActivityNoUpdateLocked(eventTime, 2475 PowerManager.USER_ACTIVITY_EVENT_OTHER, 0, uid); 2476 updatePowerStateLocked(); 2477 } 2478 } 2479 2480 private boolean isScreenBrightnessBoostedInternal() { 2481 synchronized (mLock) { 2482 return mScreenBrightnessBoostInProgress; 2483 } 2484 } 2485 2486 /** 2487 * Called when a screen brightness boost timeout has occurred. 2488 * 2489 * This function must have no other side-effects besides setting the dirty 2490 * bit and calling update power state. 2491 */ 2492 private void handleScreenBrightnessBoostTimeout() { // runs on handler thread 2493 synchronized (mLock) { 2494 if (DEBUG_SPEW) { 2495 Slog.d(TAG, "handleScreenBrightnessBoostTimeout"); 2496 } 2497 2498 mDirty |= DIRTY_SCREEN_BRIGHTNESS_BOOST; 2499 updatePowerStateLocked(); 2500 } 2501 } 2502 2503 private void setScreenBrightnessOverrideFromWindowManagerInternal(int brightness) { 2504 synchronized (mLock) { 2505 if (mScreenBrightnessOverrideFromWindowManager != brightness) { 2506 mScreenBrightnessOverrideFromWindowManager = brightness; 2507 mDirty |= DIRTY_SETTINGS; 2508 updatePowerStateLocked(); 2509 } 2510 } 2511 } 2512 2513 private void setUserInactiveOverrideFromWindowManagerInternal() { 2514 synchronized (mLock) { 2515 mUserInactiveOverrideFromWindowManager = true; 2516 mDirty |= DIRTY_USER_ACTIVITY; 2517 updatePowerStateLocked(); 2518 } 2519 } 2520 2521 private void setUserActivityTimeoutOverrideFromWindowManagerInternal(long timeoutMillis) { 2522 synchronized (mLock) { 2523 if (mUserActivityTimeoutOverrideFromWindowManager != timeoutMillis) { 2524 mUserActivityTimeoutOverrideFromWindowManager = timeoutMillis; 2525 mDirty |= DIRTY_SETTINGS; 2526 updatePowerStateLocked(); 2527 } 2528 } 2529 } 2530 2531 private void setTemporaryScreenBrightnessSettingOverrideInternal(int brightness) { 2532 synchronized (mLock) { 2533 if (mTemporaryScreenBrightnessSettingOverride != brightness) { 2534 mTemporaryScreenBrightnessSettingOverride = brightness; 2535 mDirty |= DIRTY_SETTINGS; 2536 updatePowerStateLocked(); 2537 } 2538 } 2539 } 2540 2541 private void setTemporaryScreenAutoBrightnessAdjustmentSettingOverrideInternal(float adj) { 2542 synchronized (mLock) { 2543 // Note: This condition handles NaN because NaN is not equal to any other 2544 // value, including itself. 2545 if (mTemporaryScreenAutoBrightnessAdjustmentSettingOverride != adj) { 2546 mTemporaryScreenAutoBrightnessAdjustmentSettingOverride = adj; 2547 mDirty |= DIRTY_SETTINGS; 2548 updatePowerStateLocked(); 2549 } 2550 } 2551 } 2552 2553 private void setDozeOverrideFromDreamManagerInternal( 2554 int screenState, int screenBrightness) { 2555 synchronized (mLock) { 2556 if (mDozeScreenStateOverrideFromDreamManager != screenState 2557 || mDozeScreenBrightnessOverrideFromDreamManager != screenBrightness) { 2558 mDozeScreenStateOverrideFromDreamManager = screenState; 2559 mDozeScreenBrightnessOverrideFromDreamManager = screenBrightness; 2560 mDirty |= DIRTY_SETTINGS; 2561 updatePowerStateLocked(); 2562 } 2563 } 2564 } 2565 2566 private void powerHintInternal(int hintId, int data) { 2567 nativeSendPowerHint(hintId, data); 2568 } 2569 2570 /** 2571 * Low-level function turn the device off immediately, without trying 2572 * to be clean. Most people should use {@link ShutdownThread} for a clean shutdown. 2573 */ 2574 public static void lowLevelShutdown() { 2575 SystemProperties.set("sys.powerctl", "shutdown"); 2576 } 2577 2578 /** 2579 * Low-level function to reboot the device. On success, this 2580 * function doesn't return. If more than 20 seconds passes from 2581 * the time a reboot is requested, this method returns. 2582 * 2583 * @param reason code to pass to the kernel (e.g. "recovery"), or null. 2584 */ 2585 public static void lowLevelReboot(String reason) { 2586 if (reason == null) { 2587 reason = ""; 2588 } 2589 if (reason.equals(PowerManager.REBOOT_RECOVERY)) { 2590 // If we are rebooting to go into recovery, instead of 2591 // setting sys.powerctl directly we'll start the 2592 // pre-recovery service which will do some preparation for 2593 // recovery and then reboot for us. 2594 SystemProperties.set("ctl.start", "pre-recovery"); 2595 } else { 2596 SystemProperties.set("sys.powerctl", "reboot," + reason); 2597 } 2598 try { 2599 Thread.sleep(20 * 1000L); 2600 } catch (InterruptedException e) { 2601 Thread.currentThread().interrupt(); 2602 } 2603 Slog.wtf(TAG, "Unexpected return from lowLevelReboot!"); 2604 } 2605 2606 @Override // Watchdog.Monitor implementation 2607 public void monitor() { 2608 // Grab and release lock for watchdog monitor to detect deadlocks. 2609 synchronized (mLock) { 2610 } 2611 } 2612 2613 private void dumpInternal(PrintWriter pw) { 2614 pw.println("POWER MANAGER (dumpsys power)\n"); 2615 2616 final WirelessChargerDetector wcd; 2617 synchronized (mLock) { 2618 pw.println("Power Manager State:"); 2619 pw.println(" mDirty=0x" + Integer.toHexString(mDirty)); 2620 pw.println(" mWakefulness=" + PowerManagerInternal.wakefulnessToString(mWakefulness)); 2621 pw.println(" mWakefulnessChanging=" + mWakefulnessChanging); 2622 pw.println(" mIsPowered=" + mIsPowered); 2623 pw.println(" mPlugType=" + mPlugType); 2624 pw.println(" mBatteryLevel=" + mBatteryLevel); 2625 pw.println(" mBatteryLevelWhenDreamStarted=" + mBatteryLevelWhenDreamStarted); 2626 pw.println(" mDockState=" + mDockState); 2627 pw.println(" mStayOn=" + mStayOn); 2628 pw.println(" mProximityPositive=" + mProximityPositive); 2629 pw.println(" mBootCompleted=" + mBootCompleted); 2630 pw.println(" mSystemReady=" + mSystemReady); 2631 pw.println(" mHalAutoSuspendModeEnabled=" + mHalAutoSuspendModeEnabled); 2632 pw.println(" mHalInteractiveModeEnabled=" + mHalInteractiveModeEnabled); 2633 pw.println(" mWakeLockSummary=0x" + Integer.toHexString(mWakeLockSummary)); 2634 pw.println(" mUserActivitySummary=0x" + Integer.toHexString(mUserActivitySummary)); 2635 pw.println(" mRequestWaitForNegativeProximity=" + mRequestWaitForNegativeProximity); 2636 pw.println(" mSandmanScheduled=" + mSandmanScheduled); 2637 pw.println(" mSandmanSummoned=" + mSandmanSummoned); 2638 pw.println(" mLowPowerModeEnabled=" + mLowPowerModeEnabled); 2639 pw.println(" mBatteryLevelLow=" + mBatteryLevelLow); 2640 pw.println(" mDeviceIdleMode=" + mDeviceIdleMode); 2641 pw.println(" mDeviceIdleWhitelist=" + Arrays.toString(mDeviceIdleWhitelist)); 2642 pw.println(" mDeviceIdleTempWhitelist=" + Arrays.toString(mDeviceIdleTempWhitelist)); 2643 pw.println(" mLastWakeTime=" + TimeUtils.formatUptime(mLastWakeTime)); 2644 pw.println(" mLastSleepTime=" + TimeUtils.formatUptime(mLastSleepTime)); 2645 pw.println(" mLastUserActivityTime=" + TimeUtils.formatUptime(mLastUserActivityTime)); 2646 pw.println(" mLastUserActivityTimeNoChangeLights=" 2647 + TimeUtils.formatUptime(mLastUserActivityTimeNoChangeLights)); 2648 pw.println(" mLastInteractivePowerHintTime=" 2649 + TimeUtils.formatUptime(mLastInteractivePowerHintTime)); 2650 pw.println(" mLastScreenBrightnessBoostTime=" 2651 + TimeUtils.formatUptime(mLastScreenBrightnessBoostTime)); 2652 pw.println(" mScreenBrightnessBoostInProgress=" 2653 + mScreenBrightnessBoostInProgress); 2654 pw.println(" mDisplayReady=" + mDisplayReady); 2655 pw.println(" mHoldingWakeLockSuspendBlocker=" + mHoldingWakeLockSuspendBlocker); 2656 pw.println(" mHoldingDisplaySuspendBlocker=" + mHoldingDisplaySuspendBlocker); 2657 2658 pw.println(); 2659 pw.println("Settings and Configuration:"); 2660 pw.println(" mDecoupleHalAutoSuspendModeFromDisplayConfig=" 2661 + mDecoupleHalAutoSuspendModeFromDisplayConfig); 2662 pw.println(" mDecoupleHalInteractiveModeFromDisplayConfig=" 2663 + mDecoupleHalInteractiveModeFromDisplayConfig); 2664 pw.println(" mWakeUpWhenPluggedOrUnpluggedConfig=" 2665 + mWakeUpWhenPluggedOrUnpluggedConfig); 2666 pw.println(" mWakeUpWhenPluggedOrUnpluggedInTheaterModeConfig=" 2667 + mWakeUpWhenPluggedOrUnpluggedInTheaterModeConfig); 2668 pw.println(" mTheaterModeEnabled=" 2669 + mTheaterModeEnabled); 2670 pw.println(" mSuspendWhenScreenOffDueToProximityConfig=" 2671 + mSuspendWhenScreenOffDueToProximityConfig); 2672 pw.println(" mDreamsSupportedConfig=" + mDreamsSupportedConfig); 2673 pw.println(" mDreamsEnabledByDefaultConfig=" + mDreamsEnabledByDefaultConfig); 2674 pw.println(" mDreamsActivatedOnSleepByDefaultConfig=" 2675 + mDreamsActivatedOnSleepByDefaultConfig); 2676 pw.println(" mDreamsActivatedOnDockByDefaultConfig=" 2677 + mDreamsActivatedOnDockByDefaultConfig); 2678 pw.println(" mDreamsEnabledOnBatteryConfig=" 2679 + mDreamsEnabledOnBatteryConfig); 2680 pw.println(" mDreamsBatteryLevelMinimumWhenPoweredConfig=" 2681 + mDreamsBatteryLevelMinimumWhenPoweredConfig); 2682 pw.println(" mDreamsBatteryLevelMinimumWhenNotPoweredConfig=" 2683 + mDreamsBatteryLevelMinimumWhenNotPoweredConfig); 2684 pw.println(" mDreamsBatteryLevelDrainCutoffConfig=" 2685 + mDreamsBatteryLevelDrainCutoffConfig); 2686 pw.println(" mDreamsEnabledSetting=" + mDreamsEnabledSetting); 2687 pw.println(" mDreamsActivateOnSleepSetting=" + mDreamsActivateOnSleepSetting); 2688 pw.println(" mDreamsActivateOnDockSetting=" + mDreamsActivateOnDockSetting); 2689 pw.println(" mDozeAfterScreenOffConfig=" + mDozeAfterScreenOffConfig); 2690 pw.println(" mLowPowerModeSetting=" + mLowPowerModeSetting); 2691 pw.println(" mAutoLowPowerModeConfigured=" + mAutoLowPowerModeConfigured); 2692 pw.println(" mAutoLowPowerModeSnoozing=" + mAutoLowPowerModeSnoozing); 2693 pw.println(" mMinimumScreenOffTimeoutConfig=" + mMinimumScreenOffTimeoutConfig); 2694 pw.println(" mMaximumScreenDimDurationConfig=" + mMaximumScreenDimDurationConfig); 2695 pw.println(" mMaximumScreenDimRatioConfig=" + mMaximumScreenDimRatioConfig); 2696 pw.println(" mScreenOffTimeoutSetting=" + mScreenOffTimeoutSetting); 2697 pw.println(" mSleepTimeoutSetting=" + mSleepTimeoutSetting); 2698 pw.println(" mMaximumScreenOffTimeoutFromDeviceAdmin=" 2699 + mMaximumScreenOffTimeoutFromDeviceAdmin + " (enforced=" 2700 + isMaximumScreenOffTimeoutFromDeviceAdminEnforcedLocked() + ")"); 2701 pw.println(" mStayOnWhilePluggedInSetting=" + mStayOnWhilePluggedInSetting); 2702 pw.println(" mScreenBrightnessSetting=" + mScreenBrightnessSetting); 2703 pw.println(" mScreenAutoBrightnessAdjustmentSetting=" 2704 + mScreenAutoBrightnessAdjustmentSetting); 2705 pw.println(" mScreenBrightnessModeSetting=" + mScreenBrightnessModeSetting); 2706 pw.println(" mScreenBrightnessOverrideFromWindowManager=" 2707 + mScreenBrightnessOverrideFromWindowManager); 2708 pw.println(" mUserActivityTimeoutOverrideFromWindowManager=" 2709 + mUserActivityTimeoutOverrideFromWindowManager); 2710 pw.println(" mUserInactiveOverrideFromWindowManager=" 2711 + mUserInactiveOverrideFromWindowManager); 2712 pw.println(" mTemporaryScreenBrightnessSettingOverride=" 2713 + mTemporaryScreenBrightnessSettingOverride); 2714 pw.println(" mTemporaryScreenAutoBrightnessAdjustmentSettingOverride=" 2715 + mTemporaryScreenAutoBrightnessAdjustmentSettingOverride); 2716 pw.println(" mDozeScreenStateOverrideFromDreamManager=" 2717 + mDozeScreenStateOverrideFromDreamManager); 2718 pw.println(" mDozeScreenBrightnessOverrideFromDreamManager=" 2719 + mDozeScreenBrightnessOverrideFromDreamManager); 2720 pw.println(" mScreenBrightnessSettingMinimum=" + mScreenBrightnessSettingMinimum); 2721 pw.println(" mScreenBrightnessSettingMaximum=" + mScreenBrightnessSettingMaximum); 2722 pw.println(" mScreenBrightnessSettingDefault=" + mScreenBrightnessSettingDefault); 2723 pw.println(" mDoubleTapWakeEnabled=" + mDoubleTapWakeEnabled); 2724 2725 final int sleepTimeout = getSleepTimeoutLocked(); 2726 final int screenOffTimeout = getScreenOffTimeoutLocked(sleepTimeout); 2727 final int screenDimDuration = getScreenDimDurationLocked(screenOffTimeout); 2728 pw.println(); 2729 pw.println("Sleep timeout: " + sleepTimeout + " ms"); 2730 pw.println("Screen off timeout: " + screenOffTimeout + " ms"); 2731 pw.println("Screen dim duration: " + screenDimDuration + " ms"); 2732 2733 pw.println(); 2734 pw.println("UID states:"); 2735 for (int i=0; i<mUidState.size(); i++) { 2736 pw.print(" UID "); UserHandle.formatUid(pw, mUidState.keyAt(i)); 2737 pw.print(": "); pw.println(mUidState.valueAt(i)); 2738 } 2739 2740 pw.println(); 2741 pw.println("Wake Locks: size=" + mWakeLocks.size()); 2742 for (WakeLock wl : mWakeLocks) { 2743 pw.println(" " + wl); 2744 } 2745 2746 pw.println(); 2747 pw.println("Suspend Blockers: size=" + mSuspendBlockers.size()); 2748 for (SuspendBlocker sb : mSuspendBlockers) { 2749 pw.println(" " + sb); 2750 } 2751 2752 pw.println(); 2753 pw.println("Display Power: " + mDisplayPowerCallbacks); 2754 2755 wcd = mWirelessChargerDetector; 2756 } 2757 2758 if (wcd != null) { 2759 wcd.dump(pw); 2760 } 2761 } 2762 2763 private SuspendBlocker createSuspendBlockerLocked(String name) { 2764 SuspendBlocker suspendBlocker = new SuspendBlockerImpl(name); 2765 mSuspendBlockers.add(suspendBlocker); 2766 return suspendBlocker; 2767 } 2768 2769 private static WorkSource copyWorkSource(WorkSource workSource) { 2770 return workSource != null ? new WorkSource(workSource) : null; 2771 } 2772 2773 private final class BatteryReceiver extends BroadcastReceiver { 2774 @Override 2775 public void onReceive(Context context, Intent intent) { 2776 synchronized (mLock) { 2777 handleBatteryStateChangedLocked(); 2778 } 2779 } 2780 } 2781 2782 private final class DreamReceiver extends BroadcastReceiver { 2783 @Override 2784 public void onReceive(Context context, Intent intent) { 2785 synchronized (mLock) { 2786 scheduleSandmanLocked(); 2787 } 2788 } 2789 } 2790 2791 private final class UserSwitchedReceiver extends BroadcastReceiver { 2792 @Override 2793 public void onReceive(Context context, Intent intent) { 2794 synchronized (mLock) { 2795 handleSettingsChangedLocked(); 2796 } 2797 } 2798 } 2799 2800 private final class DockReceiver extends BroadcastReceiver { 2801 @Override 2802 public void onReceive(Context context, Intent intent) { 2803 synchronized (mLock) { 2804 int dockState = intent.getIntExtra(Intent.EXTRA_DOCK_STATE, 2805 Intent.EXTRA_DOCK_STATE_UNDOCKED); 2806 if (mDockState != dockState) { 2807 mDockState = dockState; 2808 mDirty |= DIRTY_DOCK_STATE; 2809 updatePowerStateLocked(); 2810 } 2811 } 2812 } 2813 } 2814 2815 private final class SettingsObserver extends ContentObserver { 2816 public SettingsObserver(Handler handler) { 2817 super(handler); 2818 } 2819 2820 @Override 2821 public void onChange(boolean selfChange, Uri uri) { 2822 synchronized (mLock) { 2823 handleSettingsChangedLocked(); 2824 } 2825 } 2826 } 2827 2828 /** 2829 * Handler for asynchronous operations performed by the power manager. 2830 */ 2831 private final class PowerManagerHandler extends Handler { 2832 public PowerManagerHandler(Looper looper) { 2833 super(looper, null, true /*async*/); 2834 } 2835 2836 @Override 2837 public void handleMessage(Message msg) { 2838 switch (msg.what) { 2839 case MSG_USER_ACTIVITY_TIMEOUT: 2840 handleUserActivityTimeout(); 2841 break; 2842 case MSG_SANDMAN: 2843 handleSandman(); 2844 break; 2845 case MSG_SCREEN_BRIGHTNESS_BOOST_TIMEOUT: 2846 handleScreenBrightnessBoostTimeout(); 2847 break; 2848 } 2849 } 2850 } 2851 2852 /** 2853 * Represents a wake lock that has been acquired by an application. 2854 */ 2855 private final class WakeLock implements IBinder.DeathRecipient { 2856 public final IBinder mLock; 2857 public int mFlags; 2858 public String mTag; 2859 public final String mPackageName; 2860 public WorkSource mWorkSource; 2861 public String mHistoryTag; 2862 public final int mOwnerUid; 2863 public final int mOwnerPid; 2864 public boolean mNotifiedAcquired; 2865 public boolean mDisabled; 2866 2867 public WakeLock(IBinder lock, int flags, String tag, String packageName, 2868 WorkSource workSource, String historyTag, int ownerUid, int ownerPid) { 2869 mLock = lock; 2870 mFlags = flags; 2871 mTag = tag; 2872 mPackageName = packageName; 2873 mWorkSource = copyWorkSource(workSource); 2874 mHistoryTag = historyTag; 2875 mOwnerUid = ownerUid; 2876 mOwnerPid = ownerPid; 2877 } 2878 2879 @Override 2880 public void binderDied() { 2881 PowerManagerService.this.handleWakeLockDeath(this); 2882 } 2883 2884 public boolean hasSameProperties(int flags, String tag, WorkSource workSource, 2885 int ownerUid, int ownerPid) { 2886 return mFlags == flags 2887 && mTag.equals(tag) 2888 && hasSameWorkSource(workSource) 2889 && mOwnerUid == ownerUid 2890 && mOwnerPid == ownerPid; 2891 } 2892 2893 public void updateProperties(int flags, String tag, String packageName, 2894 WorkSource workSource, String historyTag, int ownerUid, int ownerPid) { 2895 if (!mPackageName.equals(packageName)) { 2896 throw new IllegalStateException("Existing wake lock package name changed: " 2897 + mPackageName + " to " + packageName); 2898 } 2899 if (mOwnerUid != ownerUid) { 2900 throw new IllegalStateException("Existing wake lock uid changed: " 2901 + mOwnerUid + " to " + ownerUid); 2902 } 2903 if (mOwnerPid != ownerPid) { 2904 throw new IllegalStateException("Existing wake lock pid changed: " 2905 + mOwnerPid + " to " + ownerPid); 2906 } 2907 mFlags = flags; 2908 mTag = tag; 2909 updateWorkSource(workSource); 2910 mHistoryTag = historyTag; 2911 } 2912 2913 public boolean hasSameWorkSource(WorkSource workSource) { 2914 return Objects.equal(mWorkSource, workSource); 2915 } 2916 2917 public void updateWorkSource(WorkSource workSource) { 2918 mWorkSource = copyWorkSource(workSource); 2919 } 2920 2921 @Override 2922 public String toString() { 2923 return getLockLevelString() 2924 + " '" + mTag + "'" + getLockFlagsString() + (mDisabled ? " DISABLED" : "") 2925 + " (uid=" + mOwnerUid + ", pid=" + mOwnerPid + ", ws=" + mWorkSource + ")"; 2926 } 2927 2928 @SuppressWarnings("deprecation") 2929 private String getLockLevelString() { 2930 switch (mFlags & PowerManager.WAKE_LOCK_LEVEL_MASK) { 2931 case PowerManager.FULL_WAKE_LOCK: 2932 return "FULL_WAKE_LOCK "; 2933 case PowerManager.SCREEN_BRIGHT_WAKE_LOCK: 2934 return "SCREEN_BRIGHT_WAKE_LOCK "; 2935 case PowerManager.SCREEN_DIM_WAKE_LOCK: 2936 return "SCREEN_DIM_WAKE_LOCK "; 2937 case PowerManager.PARTIAL_WAKE_LOCK: 2938 return "PARTIAL_WAKE_LOCK "; 2939 case PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK: 2940 return "PROXIMITY_SCREEN_OFF_WAKE_LOCK"; 2941 case PowerManager.DOZE_WAKE_LOCK: 2942 return "DOZE_WAKE_LOCK "; 2943 case PowerManager.DRAW_WAKE_LOCK: 2944 return "DRAW_WAKE_LOCK "; 2945 default: 2946 return "??? "; 2947 } 2948 } 2949 2950 private String getLockFlagsString() { 2951 String result = ""; 2952 if ((mFlags & PowerManager.ACQUIRE_CAUSES_WAKEUP) != 0) { 2953 result += " ACQUIRE_CAUSES_WAKEUP"; 2954 } 2955 if ((mFlags & PowerManager.ON_AFTER_RELEASE) != 0) { 2956 result += " ON_AFTER_RELEASE"; 2957 } 2958 return result; 2959 } 2960 } 2961 2962 private final class SuspendBlockerImpl implements SuspendBlocker { 2963 private final String mName; 2964 private final String mTraceName; 2965 private int mReferenceCount; 2966 2967 public SuspendBlockerImpl(String name) { 2968 mName = name; 2969 mTraceName = "SuspendBlocker (" + name + ")"; 2970 } 2971 2972 @Override 2973 protected void finalize() throws Throwable { 2974 try { 2975 if (mReferenceCount != 0) { 2976 Slog.wtf(TAG, "Suspend blocker \"" + mName 2977 + "\" was finalized without being released!"); 2978 mReferenceCount = 0; 2979 nativeReleaseSuspendBlocker(mName); 2980 Trace.asyncTraceEnd(Trace.TRACE_TAG_POWER, mTraceName, 0); 2981 } 2982 } finally { 2983 super.finalize(); 2984 } 2985 } 2986 2987 @Override 2988 public void acquire() { 2989 synchronized (this) { 2990 mReferenceCount += 1; 2991 if (mReferenceCount == 1) { 2992 if (DEBUG_SPEW) { 2993 Slog.d(TAG, "Acquiring suspend blocker \"" + mName + "\"."); 2994 } 2995 Trace.asyncTraceBegin(Trace.TRACE_TAG_POWER, mTraceName, 0); 2996 nativeAcquireSuspendBlocker(mName); 2997 } 2998 } 2999 } 3000 3001 @Override 3002 public void release() { 3003 synchronized (this) { 3004 mReferenceCount -= 1; 3005 if (mReferenceCount == 0) { 3006 if (DEBUG_SPEW) { 3007 Slog.d(TAG, "Releasing suspend blocker \"" + mName + "\"."); 3008 } 3009 nativeReleaseSuspendBlocker(mName); 3010 Trace.asyncTraceEnd(Trace.TRACE_TAG_POWER, mTraceName, 0); 3011 } else if (mReferenceCount < 0) { 3012 Slog.wtf(TAG, "Suspend blocker \"" + mName 3013 + "\" was released without being acquired!", new Throwable()); 3014 mReferenceCount = 0; 3015 } 3016 } 3017 } 3018 3019 @Override 3020 public String toString() { 3021 synchronized (this) { 3022 return mName + ": ref count=" + mReferenceCount; 3023 } 3024 } 3025 } 3026 3027 private final class BinderService extends IPowerManager.Stub { 3028 @Override // Binder call 3029 public void acquireWakeLockWithUid(IBinder lock, int flags, String tag, 3030 String packageName, int uid) { 3031 if (uid < 0) { 3032 uid = Binder.getCallingUid(); 3033 } 3034 acquireWakeLock(lock, flags, tag, packageName, new WorkSource(uid), null); 3035 } 3036 3037 @Override // Binder call 3038 public void powerHint(int hintId, int data) { 3039 if (!mSystemReady) { 3040 // Service not ready yet, so who the heck cares about power hints, bah. 3041 return; 3042 } 3043 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null); 3044 powerHintInternal(hintId, data); 3045 } 3046 3047 @Override // Binder call 3048 public void acquireWakeLock(IBinder lock, int flags, String tag, String packageName, 3049 WorkSource ws, String historyTag) { 3050 if (lock == null) { 3051 throw new IllegalArgumentException("lock must not be null"); 3052 } 3053 if (packageName == null) { 3054 throw new IllegalArgumentException("packageName must not be null"); 3055 } 3056 PowerManager.validateWakeLockParameters(flags, tag); 3057 3058 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WAKE_LOCK, null); 3059 if ((flags & PowerManager.DOZE_WAKE_LOCK) != 0) { 3060 mContext.enforceCallingOrSelfPermission( 3061 android.Manifest.permission.DEVICE_POWER, null); 3062 } 3063 if (ws != null && ws.size() != 0) { 3064 mContext.enforceCallingOrSelfPermission( 3065 android.Manifest.permission.UPDATE_DEVICE_STATS, null); 3066 } else { 3067 ws = null; 3068 } 3069 3070 final int uid = Binder.getCallingUid(); 3071 final int pid = Binder.getCallingPid(); 3072 final long ident = Binder.clearCallingIdentity(); 3073 try { 3074 acquireWakeLockInternal(lock, flags, tag, packageName, ws, historyTag, uid, pid); 3075 } finally { 3076 Binder.restoreCallingIdentity(ident); 3077 } 3078 } 3079 3080 @Override // Binder call 3081 public void releaseWakeLock(IBinder lock, int flags) { 3082 if (lock == null) { 3083 throw new IllegalArgumentException("lock must not be null"); 3084 } 3085 3086 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WAKE_LOCK, null); 3087 3088 final long ident = Binder.clearCallingIdentity(); 3089 try { 3090 releaseWakeLockInternal(lock, flags); 3091 } finally { 3092 Binder.restoreCallingIdentity(ident); 3093 } 3094 } 3095 3096 @Override // Binder call 3097 public void updateWakeLockUids(IBinder lock, int[] uids) { 3098 WorkSource ws = null; 3099 3100 if (uids != null) { 3101 ws = new WorkSource(); 3102 // XXX should WorkSource have a way to set uids as an int[] instead of adding them 3103 // one at a time? 3104 for (int i = 0; i < uids.length; i++) { 3105 ws.add(uids[i]); 3106 } 3107 } 3108 updateWakeLockWorkSource(lock, ws, null); 3109 } 3110 3111 @Override // Binder call 3112 public void updateWakeLockWorkSource(IBinder lock, WorkSource ws, String historyTag) { 3113 if (lock == null) { 3114 throw new IllegalArgumentException("lock must not be null"); 3115 } 3116 3117 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WAKE_LOCK, null); 3118 if (ws != null && ws.size() != 0) { 3119 mContext.enforceCallingOrSelfPermission( 3120 android.Manifest.permission.UPDATE_DEVICE_STATS, null); 3121 } else { 3122 ws = null; 3123 } 3124 3125 final int callingUid = Binder.getCallingUid(); 3126 final long ident = Binder.clearCallingIdentity(); 3127 try { 3128 updateWakeLockWorkSourceInternal(lock, ws, historyTag, callingUid); 3129 } finally { 3130 Binder.restoreCallingIdentity(ident); 3131 } 3132 } 3133 3134 @Override // Binder call 3135 public boolean isWakeLockLevelSupported(int level) { 3136 final long ident = Binder.clearCallingIdentity(); 3137 try { 3138 return isWakeLockLevelSupportedInternal(level); 3139 } finally { 3140 Binder.restoreCallingIdentity(ident); 3141 } 3142 } 3143 3144 @Override // Binder call 3145 public void userActivity(long eventTime, int event, int flags) { 3146 final long now = SystemClock.uptimeMillis(); 3147 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER) 3148 != PackageManager.PERMISSION_GRANTED 3149 && mContext.checkCallingOrSelfPermission( 3150 android.Manifest.permission.USER_ACTIVITY) 3151 != PackageManager.PERMISSION_GRANTED) { 3152 // Once upon a time applications could call userActivity(). 3153 // Now we require the DEVICE_POWER permission. Log a warning and ignore the 3154 // request instead of throwing a SecurityException so we don't break old apps. 3155 synchronized (mLock) { 3156 if (now >= mLastWarningAboutUserActivityPermission + (5 * 60 * 1000)) { 3157 mLastWarningAboutUserActivityPermission = now; 3158 Slog.w(TAG, "Ignoring call to PowerManager.userActivity() because the " 3159 + "caller does not have DEVICE_POWER or USER_ACTIVITY " 3160 + "permission. Please fix your app! " 3161 + " pid=" + Binder.getCallingPid() 3162 + " uid=" + Binder.getCallingUid()); 3163 } 3164 } 3165 return; 3166 } 3167 3168 if (eventTime > now) { 3169 throw new IllegalArgumentException("event time must not be in the future"); 3170 } 3171 3172 final int uid = Binder.getCallingUid(); 3173 final long ident = Binder.clearCallingIdentity(); 3174 try { 3175 userActivityInternal(eventTime, event, flags, uid); 3176 } finally { 3177 Binder.restoreCallingIdentity(ident); 3178 } 3179 } 3180 3181 @Override // Binder call 3182 public void wakeUp(long eventTime, String reason, String opPackageName) { 3183 if (eventTime > SystemClock.uptimeMillis()) { 3184 throw new IllegalArgumentException("event time must not be in the future"); 3185 } 3186 3187 mContext.enforceCallingOrSelfPermission( 3188 android.Manifest.permission.DEVICE_POWER, null); 3189 3190 final int uid = Binder.getCallingUid(); 3191 final long ident = Binder.clearCallingIdentity(); 3192 try { 3193 wakeUpInternal(eventTime, reason, uid, opPackageName, uid); 3194 } finally { 3195 Binder.restoreCallingIdentity(ident); 3196 } 3197 } 3198 3199 @Override // Binder call 3200 public void goToSleep(long eventTime, int reason, int flags) { 3201 if (eventTime > SystemClock.uptimeMillis()) { 3202 throw new IllegalArgumentException("event time must not be in the future"); 3203 } 3204 3205 mContext.enforceCallingOrSelfPermission( 3206 android.Manifest.permission.DEVICE_POWER, null); 3207 3208 final int uid = Binder.getCallingUid(); 3209 final long ident = Binder.clearCallingIdentity(); 3210 try { 3211 goToSleepInternal(eventTime, reason, flags, uid); 3212 } finally { 3213 Binder.restoreCallingIdentity(ident); 3214 } 3215 } 3216 3217 @Override // Binder call 3218 public void nap(long eventTime) { 3219 if (eventTime > SystemClock.uptimeMillis()) { 3220 throw new IllegalArgumentException("event time must not be in the future"); 3221 } 3222 3223 mContext.enforceCallingOrSelfPermission( 3224 android.Manifest.permission.DEVICE_POWER, null); 3225 3226 final int uid = Binder.getCallingUid(); 3227 final long ident = Binder.clearCallingIdentity(); 3228 try { 3229 napInternal(eventTime, uid); 3230 } finally { 3231 Binder.restoreCallingIdentity(ident); 3232 } 3233 } 3234 3235 @Override // Binder call 3236 public boolean isInteractive() { 3237 final long ident = Binder.clearCallingIdentity(); 3238 try { 3239 return isInteractiveInternal(); 3240 } finally { 3241 Binder.restoreCallingIdentity(ident); 3242 } 3243 } 3244 3245 @Override // Binder call 3246 public boolean isPowerSaveMode() { 3247 final long ident = Binder.clearCallingIdentity(); 3248 try { 3249 return isLowPowerModeInternal(); 3250 } finally { 3251 Binder.restoreCallingIdentity(ident); 3252 } 3253 } 3254 3255 @Override // Binder call 3256 public boolean setPowerSaveMode(boolean mode) { 3257 mContext.enforceCallingOrSelfPermission( 3258 android.Manifest.permission.DEVICE_POWER, null); 3259 final long ident = Binder.clearCallingIdentity(); 3260 try { 3261 return setLowPowerModeInternal(mode); 3262 } finally { 3263 Binder.restoreCallingIdentity(ident); 3264 } 3265 } 3266 3267 @Override // Binder call 3268 public boolean isDeviceIdleMode() { 3269 final long ident = Binder.clearCallingIdentity(); 3270 try { 3271 return isDeviceIdleModeInternal(); 3272 } finally { 3273 Binder.restoreCallingIdentity(ident); 3274 } 3275 } 3276 3277 /** 3278 * Reboots the device. 3279 * 3280 * @param confirm If true, shows a reboot confirmation dialog. 3281 * @param reason The reason for the reboot, or null if none. 3282 * @param wait If true, this call waits for the reboot to complete and does not return. 3283 */ 3284 @Override // Binder call 3285 public void reboot(boolean confirm, String reason, boolean wait) { 3286 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.REBOOT, null); 3287 if (PowerManager.REBOOT_RECOVERY.equals(reason)) { 3288 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.RECOVERY, null); 3289 } 3290 3291 final long ident = Binder.clearCallingIdentity(); 3292 try { 3293 shutdownOrRebootInternal(false, confirm, reason, wait); 3294 } finally { 3295 Binder.restoreCallingIdentity(ident); 3296 } 3297 } 3298 3299 /** 3300 * Shuts down the device. 3301 * 3302 * @param confirm If true, shows a shutdown confirmation dialog. 3303 * @param wait If true, this call waits for the shutdown to complete and does not return. 3304 */ 3305 @Override // Binder call 3306 public void shutdown(boolean confirm, boolean wait) { 3307 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.REBOOT, null); 3308 3309 final long ident = Binder.clearCallingIdentity(); 3310 try { 3311 shutdownOrRebootInternal(true, confirm, null, wait); 3312 } finally { 3313 Binder.restoreCallingIdentity(ident); 3314 } 3315 } 3316 3317 /** 3318 * Crash the runtime (causing a complete restart of the Android framework). 3319 * Requires REBOOT permission. Mostly for testing. Should not return. 3320 */ 3321 @Override // Binder call 3322 public void crash(String message) { 3323 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.REBOOT, null); 3324 3325 final long ident = Binder.clearCallingIdentity(); 3326 try { 3327 crashInternal(message); 3328 } finally { 3329 Binder.restoreCallingIdentity(ident); 3330 } 3331 } 3332 3333 /** 3334 * Set the setting that determines whether the device stays on when plugged in. 3335 * The argument is a bit string, with each bit specifying a power source that, 3336 * when the device is connected to that source, causes the device to stay on. 3337 * See {@link android.os.BatteryManager} for the list of power sources that 3338 * can be specified. Current values include 3339 * {@link android.os.BatteryManager#BATTERY_PLUGGED_AC} 3340 * and {@link android.os.BatteryManager#BATTERY_PLUGGED_USB} 3341 * 3342 * Used by "adb shell svc power stayon ..." 3343 * 3344 * @param val an {@code int} containing the bits that specify which power sources 3345 * should cause the device to stay on. 3346 */ 3347 @Override // Binder call 3348 public void setStayOnSetting(int val) { 3349 int uid = Binder.getCallingUid(); 3350 // if uid is of root's, we permit this operation straight away 3351 if (uid != Process.ROOT_UID) { 3352 if (!Settings.checkAndNoteWriteSettingsOperation(mContext, uid, 3353 Settings.getPackageNameForUid(mContext, uid), true)) { 3354 return; 3355 } 3356 } 3357 3358 final long ident = Binder.clearCallingIdentity(); 3359 try { 3360 setStayOnSettingInternal(val); 3361 } finally { 3362 Binder.restoreCallingIdentity(ident); 3363 } 3364 } 3365 3366 /** 3367 * Used by the settings application and brightness control widgets to 3368 * temporarily override the current screen brightness setting so that the 3369 * user can observe the effect of an intended settings change without applying 3370 * it immediately. 3371 * 3372 * The override will be canceled when the setting value is next updated. 3373 * 3374 * @param brightness The overridden brightness. 3375 * 3376 * @see android.provider.Settings.System#SCREEN_BRIGHTNESS 3377 */ 3378 @Override // Binder call 3379 public void setTemporaryScreenBrightnessSettingOverride(int brightness) { 3380 mContext.enforceCallingOrSelfPermission( 3381 android.Manifest.permission.DEVICE_POWER, null); 3382 3383 final long ident = Binder.clearCallingIdentity(); 3384 try { 3385 setTemporaryScreenBrightnessSettingOverrideInternal(brightness); 3386 } finally { 3387 Binder.restoreCallingIdentity(ident); 3388 } 3389 } 3390 3391 /** 3392 * Used by the settings application and brightness control widgets to 3393 * temporarily override the current screen auto-brightness adjustment setting so that the 3394 * user can observe the effect of an intended settings change without applying 3395 * it immediately. 3396 * 3397 * The override will be canceled when the setting value is next updated. 3398 * 3399 * @param adj The overridden brightness, or Float.NaN to disable the override. 3400 * 3401 * @see android.provider.Settings.System#SCREEN_AUTO_BRIGHTNESS_ADJ 3402 */ 3403 @Override // Binder call 3404 public void setTemporaryScreenAutoBrightnessAdjustmentSettingOverride(float adj) { 3405 mContext.enforceCallingOrSelfPermission( 3406 android.Manifest.permission.DEVICE_POWER, null); 3407 3408 final long ident = Binder.clearCallingIdentity(); 3409 try { 3410 setTemporaryScreenAutoBrightnessAdjustmentSettingOverrideInternal(adj); 3411 } finally { 3412 Binder.restoreCallingIdentity(ident); 3413 } 3414 } 3415 3416 /** 3417 * Used by the phone application to make the attention LED flash when ringing. 3418 */ 3419 @Override // Binder call 3420 public void setAttentionLight(boolean on, int color) { 3421 mContext.enforceCallingOrSelfPermission( 3422 android.Manifest.permission.DEVICE_POWER, null); 3423 3424 final long ident = Binder.clearCallingIdentity(); 3425 try { 3426 setAttentionLightInternal(on, color); 3427 } finally { 3428 Binder.restoreCallingIdentity(ident); 3429 } 3430 } 3431 3432 @Override // Binder call 3433 public void boostScreenBrightness(long eventTime) { 3434 if (eventTime > SystemClock.uptimeMillis()) { 3435 throw new IllegalArgumentException("event time must not be in the future"); 3436 } 3437 3438 mContext.enforceCallingOrSelfPermission( 3439 android.Manifest.permission.DEVICE_POWER, null); 3440 3441 final int uid = Binder.getCallingUid(); 3442 final long ident = Binder.clearCallingIdentity(); 3443 try { 3444 boostScreenBrightnessInternal(eventTime, uid); 3445 } finally { 3446 Binder.restoreCallingIdentity(ident); 3447 } 3448 } 3449 3450 @Override // Binder call 3451 public boolean isScreenBrightnessBoosted() { 3452 final long ident = Binder.clearCallingIdentity(); 3453 try { 3454 return isScreenBrightnessBoostedInternal(); 3455 } finally { 3456 Binder.restoreCallingIdentity(ident); 3457 } 3458 } 3459 3460 @Override // Binder call 3461 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 3462 if (mContext.checkCallingOrSelfPermission(Manifest.permission.DUMP) 3463 != PackageManager.PERMISSION_GRANTED) { 3464 pw.println("Permission Denial: can't dump PowerManager from from pid=" 3465 + Binder.getCallingPid() 3466 + ", uid=" + Binder.getCallingUid()); 3467 return; 3468 } 3469 3470 final long ident = Binder.clearCallingIdentity(); 3471 try { 3472 dumpInternal(pw); 3473 } finally { 3474 Binder.restoreCallingIdentity(ident); 3475 } 3476 } 3477 } 3478 3479 private final class LocalService extends PowerManagerInternal { 3480 @Override 3481 public void setScreenBrightnessOverrideFromWindowManager(int screenBrightness) { 3482 if (screenBrightness < PowerManager.BRIGHTNESS_DEFAULT 3483 || screenBrightness > PowerManager.BRIGHTNESS_ON) { 3484 screenBrightness = PowerManager.BRIGHTNESS_DEFAULT; 3485 } 3486 setScreenBrightnessOverrideFromWindowManagerInternal(screenBrightness); 3487 } 3488 3489 @Override 3490 public void setButtonBrightnessOverrideFromWindowManager(int screenBrightness) { 3491 // Do nothing. 3492 // Button lights are not currently supported in the new implementation. 3493 } 3494 3495 @Override 3496 public void setDozeOverrideFromDreamManager(int screenState, int screenBrightness) { 3497 switch (screenState) { 3498 case Display.STATE_UNKNOWN: 3499 case Display.STATE_OFF: 3500 case Display.STATE_DOZE: 3501 case Display.STATE_DOZE_SUSPEND: 3502 case Display.STATE_ON: 3503 break; 3504 default: 3505 screenState = Display.STATE_UNKNOWN; 3506 break; 3507 } 3508 if (screenBrightness < PowerManager.BRIGHTNESS_DEFAULT 3509 || screenBrightness > PowerManager.BRIGHTNESS_ON) { 3510 screenBrightness = PowerManager.BRIGHTNESS_DEFAULT; 3511 } 3512 setDozeOverrideFromDreamManagerInternal(screenState, screenBrightness); 3513 } 3514 3515 @Override 3516 public void setUserInactiveOverrideFromWindowManager() { 3517 setUserInactiveOverrideFromWindowManagerInternal(); 3518 } 3519 3520 @Override 3521 public void setUserActivityTimeoutOverrideFromWindowManager(long timeoutMillis) { 3522 setUserActivityTimeoutOverrideFromWindowManagerInternal(timeoutMillis); 3523 } 3524 3525 @Override 3526 public void setMaximumScreenOffTimeoutFromDeviceAdmin(int timeMs) { 3527 setMaximumScreenOffTimeoutFromDeviceAdminInternal(timeMs); 3528 } 3529 3530 @Override 3531 public boolean getLowPowerModeEnabled() { 3532 synchronized (mLock) { 3533 return mLowPowerModeEnabled; 3534 } 3535 } 3536 3537 @Override 3538 public void registerLowPowerModeObserver(LowPowerModeListener listener) { 3539 synchronized (mLock) { 3540 mLowPowerModeListeners.add(listener); 3541 } 3542 } 3543 3544 @Override 3545 public void setDeviceIdleMode(boolean enabled) { 3546 setDeviceIdleModeInternal(enabled); 3547 } 3548 3549 @Override 3550 public void setDeviceIdleWhitelist(int[] appids) { 3551 setDeviceIdleWhitelistInternal(appids); 3552 } 3553 3554 @Override 3555 public void setDeviceIdleTempWhitelist(int[] appids) { 3556 setDeviceIdleTempWhitelistInternal(appids); 3557 } 3558 3559 @Override 3560 public void updateUidProcState(int uid, int procState) { 3561 updateUidProcStateInternal(uid, procState); 3562 } 3563 3564 @Override 3565 public void uidGone(int uid) { 3566 uidGoneInternal(uid); 3567 } 3568 3569 @Override 3570 public void powerHint(int hintId, int data) { 3571 powerHintInternal(hintId, data); 3572 } 3573 } 3574} 3575