PowerManagerService.java revision 7e96654f1b2e7c97f52cdc68d343139a5186d54d
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.Manifest; 20import android.annotation.IntDef; 21import android.app.ActivityManager; 22import android.content.BroadcastReceiver; 23import android.content.ContentResolver; 24import android.content.Context; 25import android.content.Intent; 26import android.content.IntentFilter; 27import android.content.pm.PackageManager; 28import android.content.res.Resources; 29import android.database.ContentObserver; 30import android.hardware.SensorManager; 31import android.hardware.SystemSensorManager; 32import android.hardware.display.DisplayManagerInternal; 33import android.hardware.display.DisplayManagerInternal.DisplayPowerRequest; 34import android.hardware.power.V1_0.PowerHint; 35import android.net.Uri; 36import android.os.BatteryManager; 37import android.os.BatteryManagerInternal; 38import android.os.Binder; 39import android.os.Handler; 40import android.os.IBinder; 41import android.os.IPowerManager; 42import android.os.Looper; 43import android.os.Message; 44import android.os.PowerManager; 45import android.os.PowerManagerInternal; 46import android.os.Process; 47import android.os.RemoteException; 48import android.os.SystemClock; 49import android.os.SystemProperties; 50import android.os.Trace; 51import android.os.UserHandle; 52import android.os.WorkSource; 53import android.provider.Settings; 54import android.provider.Settings.Secure; 55import android.provider.Settings.SettingNotFoundException; 56import android.service.dreams.DreamManagerInternal; 57import android.service.vr.IVrManager; 58import android.service.vr.IVrStateCallbacks; 59import android.util.EventLog; 60import android.util.PrintWriterPrinter; 61import android.util.Slog; 62import android.util.SparseArray; 63import android.util.TimeUtils; 64import android.view.Display; 65import android.view.WindowManagerPolicy; 66 67import com.android.internal.app.IAppOpsService; 68import com.android.internal.app.IBatteryStats; 69import com.android.internal.os.BackgroundThread; 70import com.android.internal.util.ArrayUtils; 71import com.android.server.EventLogTags; 72import com.android.server.ServiceThread; 73import com.android.server.SystemService; 74import com.android.server.Watchdog; 75import com.android.server.am.BatteryStatsService; 76import com.android.server.lights.Light; 77import com.android.server.lights.LightsManager; 78import com.android.server.vr.VrManagerService; 79import libcore.util.Objects; 80 81import java.io.FileDescriptor; 82import java.io.PrintWriter; 83import java.lang.annotation.Retention; 84import java.lang.annotation.RetentionPolicy; 85import java.util.ArrayList; 86import java.util.Arrays; 87 88import static android.os.PowerManagerInternal.WAKEFULNESS_ASLEEP; 89import static android.os.PowerManagerInternal.WAKEFULNESS_AWAKE; 90import static android.os.PowerManagerInternal.WAKEFULNESS_DOZING; 91import static android.os.PowerManagerInternal.WAKEFULNESS_DREAMING; 92 93/** 94 * The power manager service is responsible for coordinating power management 95 * functions on the device. 96 */ 97public final class PowerManagerService extends SystemService 98 implements Watchdog.Monitor { 99 private static final String TAG = "PowerManagerService"; 100 101 private static final boolean DEBUG = false; 102 private static final boolean DEBUG_SPEW = DEBUG && true; 103 104 // Message: Sent when a user activity timeout occurs to update the power state. 105 private static final int MSG_USER_ACTIVITY_TIMEOUT = 1; 106 // Message: Sent when the device enters or exits a dreaming or dozing state. 107 private static final int MSG_SANDMAN = 2; 108 // Message: Sent when the screen brightness boost expires. 109 private static final int MSG_SCREEN_BRIGHTNESS_BOOST_TIMEOUT = 3; 110 // Message: Polling to look for long held wake locks. 111 private static final int MSG_CHECK_FOR_LONG_WAKELOCKS = 4; 112 113 // Dirty bit: mWakeLocks changed 114 private static final int DIRTY_WAKE_LOCKS = 1 << 0; 115 // Dirty bit: mWakefulness changed 116 private static final int DIRTY_WAKEFULNESS = 1 << 1; 117 // Dirty bit: user activity was poked or may have timed out 118 private static final int DIRTY_USER_ACTIVITY = 1 << 2; 119 // Dirty bit: actual display power state was updated asynchronously 120 private static final int DIRTY_ACTUAL_DISPLAY_POWER_STATE_UPDATED = 1 << 3; 121 // Dirty bit: mBootCompleted changed 122 private static final int DIRTY_BOOT_COMPLETED = 1 << 4; 123 // Dirty bit: settings changed 124 private static final int DIRTY_SETTINGS = 1 << 5; 125 // Dirty bit: mIsPowered changed 126 private static final int DIRTY_IS_POWERED = 1 << 6; 127 // Dirty bit: mStayOn changed 128 private static final int DIRTY_STAY_ON = 1 << 7; 129 // Dirty bit: battery state changed 130 private static final int DIRTY_BATTERY_STATE = 1 << 8; 131 // Dirty bit: proximity state changed 132 private static final int DIRTY_PROXIMITY_POSITIVE = 1 << 9; 133 // Dirty bit: dock state changed 134 private static final int DIRTY_DOCK_STATE = 1 << 10; 135 // Dirty bit: brightness boost changed 136 private static final int DIRTY_SCREEN_BRIGHTNESS_BOOST = 1 << 11; 137 // Dirty bit: sQuiescent changed 138 private static final int DIRTY_QUIESCENT = 1 << 12; 139 140 // Summarizes the state of all active wakelocks. 141 private static final int WAKE_LOCK_CPU = 1 << 0; 142 private static final int WAKE_LOCK_SCREEN_BRIGHT = 1 << 1; 143 private static final int WAKE_LOCK_SCREEN_DIM = 1 << 2; 144 private static final int WAKE_LOCK_BUTTON_BRIGHT = 1 << 3; 145 private static final int WAKE_LOCK_PROXIMITY_SCREEN_OFF = 1 << 4; 146 private static final int WAKE_LOCK_STAY_AWAKE = 1 << 5; // only set if already awake 147 private static final int WAKE_LOCK_DOZE = 1 << 6; 148 private static final int WAKE_LOCK_DRAW = 1 << 7; 149 150 // Summarizes the user activity state. 151 private static final int USER_ACTIVITY_SCREEN_BRIGHT = 1 << 0; 152 private static final int USER_ACTIVITY_SCREEN_DIM = 1 << 1; 153 private static final int USER_ACTIVITY_SCREEN_DREAM = 1 << 2; 154 155 // Default timeout in milliseconds. This is only used until the settings 156 // provider populates the actual default value (R.integer.def_screen_off_timeout). 157 private static final int DEFAULT_SCREEN_OFF_TIMEOUT = 15 * 1000; 158 private static final int DEFAULT_SLEEP_TIMEOUT = -1; 159 160 // Screen brightness boost timeout. 161 // Hardcoded for now until we decide what the right policy should be. 162 // This should perhaps be a setting. 163 private static final int SCREEN_BRIGHTNESS_BOOST_TIMEOUT = 5 * 1000; 164 165 // How long a partial wake lock must be held until we consider it a long wake lock. 166 static final long MIN_LONG_WAKE_CHECK_INTERVAL = 60*1000; 167 168 // Power features defined in hardware/libhardware/include/hardware/power.h. 169 private static final int POWER_FEATURE_DOUBLE_TAP_TO_WAKE = 1; 170 171 // Default setting for double tap to wake. 172 private static final int DEFAULT_DOUBLE_TAP_TO_WAKE = 0; 173 174 // System property indicating that the screen should remain off until an explicit user action 175 private static final String SYSTEM_PROPERTY_QUIESCENT = "ro.boot.quiescent"; 176 177 /** Constants for {@link #shutdownOrRebootInternal} */ 178 @Retention(RetentionPolicy.SOURCE) 179 @IntDef({HALT_MODE_SHUTDOWN, HALT_MODE_REBOOT, HALT_MODE_REBOOT_SAFE_MODE}) 180 public @interface HaltMode {} 181 private static final int HALT_MODE_SHUTDOWN = 0; 182 private static final int HALT_MODE_REBOOT = 1; 183 private static final int HALT_MODE_REBOOT_SAFE_MODE = 2; 184 185 private final Context mContext; 186 private final ServiceThread mHandlerThread; 187 private final PowerManagerHandler mHandler; 188 189 private LightsManager mLightsManager; 190 private BatteryManagerInternal mBatteryManagerInternal; 191 private DisplayManagerInternal mDisplayManagerInternal; 192 private IBatteryStats mBatteryStats; 193 private IAppOpsService mAppOps; 194 private WindowManagerPolicy mPolicy; 195 private Notifier mNotifier; 196 private WirelessChargerDetector mWirelessChargerDetector; 197 private SettingsObserver mSettingsObserver; 198 private DreamManagerInternal mDreamManager; 199 private Light mAttentionLight; 200 201 private final Object mLock = new Object(); 202 203 // A bitfield that indicates what parts of the power state have 204 // changed and need to be recalculated. 205 private int mDirty; 206 207 // Indicates whether the device is awake or asleep or somewhere in between. 208 // This is distinct from the screen power state, which is managed separately. 209 private int mWakefulness; 210 private boolean mWakefulnessChanging; 211 212 // True if the sandman has just been summoned for the first time since entering the 213 // dreaming or dozing state. Indicates whether a new dream should begin. 214 private boolean mSandmanSummoned; 215 216 // True if MSG_SANDMAN has been scheduled. 217 private boolean mSandmanScheduled; 218 219 // Table of all suspend blockers. 220 // There should only be a few of these. 221 private final ArrayList<SuspendBlocker> mSuspendBlockers = new ArrayList<SuspendBlocker>(); 222 223 // Table of all wake locks acquired by applications. 224 private final ArrayList<WakeLock> mWakeLocks = new ArrayList<WakeLock>(); 225 226 // A bitfield that summarizes the state of all active wakelocks. 227 private int mWakeLockSummary; 228 229 // Have we scheduled a message to check for long wake locks? This is when we will check. 230 private long mNotifyLongScheduled; 231 232 // Last time we checked for long wake locks. 233 private long mNotifyLongDispatched; 234 235 // The time we decided to do next long check. 236 private long mNotifyLongNextCheck; 237 238 // If true, instructs the display controller to wait for the proximity sensor to 239 // go negative before turning the screen on. 240 private boolean mRequestWaitForNegativeProximity; 241 242 // Timestamp of the last time the device was awoken or put to sleep. 243 private long mLastWakeTime; 244 private long mLastSleepTime; 245 246 // Timestamp of the last call to user activity. 247 private long mLastUserActivityTime; 248 private long mLastUserActivityTimeNoChangeLights; 249 250 // Timestamp of last interactive power hint. 251 private long mLastInteractivePowerHintTime; 252 253 // Timestamp of the last screen brightness boost. 254 private long mLastScreenBrightnessBoostTime; 255 private boolean mScreenBrightnessBoostInProgress; 256 257 // A bitfield that summarizes the effect of the user activity timer. 258 private int mUserActivitySummary; 259 260 // The desired display power state. The actual state may lag behind the 261 // requested because it is updated asynchronously by the display power controller. 262 private final DisplayPowerRequest mDisplayPowerRequest = new DisplayPowerRequest(); 263 264 // True if the display power state has been fully applied, which means the display 265 // is actually on or actually off or whatever was requested. 266 private boolean mDisplayReady; 267 268 // The suspend blocker used to keep the CPU alive when an application has acquired 269 // a wake lock. 270 private final SuspendBlocker mWakeLockSuspendBlocker; 271 272 // True if the wake lock suspend blocker has been acquired. 273 private boolean mHoldingWakeLockSuspendBlocker; 274 275 // The suspend blocker used to keep the CPU alive when the display is on, the 276 // display is getting ready or there is user activity (in which case the display 277 // must be on). 278 private final SuspendBlocker mDisplaySuspendBlocker; 279 280 // True if the display suspend blocker has been acquired. 281 private boolean mHoldingDisplaySuspendBlocker; 282 283 // True if systemReady() has been called. 284 private boolean mSystemReady; 285 286 // True if boot completed occurred. We keep the screen on until this happens. 287 private boolean mBootCompleted; 288 289 // Runnables that should be triggered on boot completed 290 private Runnable[] mBootCompletedRunnables; 291 292 // True if auto-suspend mode is enabled. 293 // Refer to autosuspend.h. 294 private boolean mHalAutoSuspendModeEnabled; 295 296 // True if interactive mode is enabled. 297 // Refer to power.h. 298 private boolean mHalInteractiveModeEnabled; 299 300 // True if the device is plugged into a power source. 301 private boolean mIsPowered; 302 303 // The current plug type, such as BatteryManager.BATTERY_PLUGGED_WIRELESS. 304 private int mPlugType; 305 306 // The current battery level percentage. 307 private int mBatteryLevel; 308 309 // The battery level percentage at the time the dream started. 310 // This is used to terminate a dream and go to sleep if the battery is 311 // draining faster than it is charging and the user activity timeout has expired. 312 private int mBatteryLevelWhenDreamStarted; 313 314 // The current dock state. 315 private int mDockState = Intent.EXTRA_DOCK_STATE_UNDOCKED; 316 317 // True to decouple auto-suspend mode from the display state. 318 private boolean mDecoupleHalAutoSuspendModeFromDisplayConfig; 319 320 // True to decouple interactive mode from the display state. 321 private boolean mDecoupleHalInteractiveModeFromDisplayConfig; 322 323 // True if the device should wake up when plugged or unplugged. 324 private boolean mWakeUpWhenPluggedOrUnpluggedConfig; 325 326 // True if the device should wake up when plugged or unplugged in theater mode. 327 private boolean mWakeUpWhenPluggedOrUnpluggedInTheaterModeConfig; 328 329 // True if the device should suspend when the screen is off due to proximity. 330 private boolean mSuspendWhenScreenOffDueToProximityConfig; 331 332 // True if dreams are supported on this device. 333 private boolean mDreamsSupportedConfig; 334 335 // Default value for dreams enabled 336 private boolean mDreamsEnabledByDefaultConfig; 337 338 // Default value for dreams activate-on-sleep 339 private boolean mDreamsActivatedOnSleepByDefaultConfig; 340 341 // Default value for dreams activate-on-dock 342 private boolean mDreamsActivatedOnDockByDefaultConfig; 343 344 // True if dreams can run while not plugged in. 345 private boolean mDreamsEnabledOnBatteryConfig; 346 347 // Minimum battery level to allow dreaming when powered. 348 // Use -1 to disable this safety feature. 349 private int mDreamsBatteryLevelMinimumWhenPoweredConfig; 350 351 // Minimum battery level to allow dreaming when not powered. 352 // Use -1 to disable this safety feature. 353 private int mDreamsBatteryLevelMinimumWhenNotPoweredConfig; 354 355 // If the battery level drops by this percentage and the user activity timeout 356 // has expired, then assume the device is receiving insufficient current to charge 357 // effectively and terminate the dream. Use -1 to disable this safety feature. 358 private int mDreamsBatteryLevelDrainCutoffConfig; 359 360 // True if dreams are enabled by the user. 361 private boolean mDreamsEnabledSetting; 362 363 // True if dreams should be activated on sleep. 364 private boolean mDreamsActivateOnSleepSetting; 365 366 // True if dreams should be activated on dock. 367 private boolean mDreamsActivateOnDockSetting; 368 369 // True if doze should not be started until after the screen off transition. 370 private boolean mDozeAfterScreenOffConfig; 371 372 // The minimum screen off timeout, in milliseconds. 373 private int mMinimumScreenOffTimeoutConfig; 374 375 // The screen dim duration, in milliseconds. 376 // This is subtracted from the end of the screen off timeout so the 377 // minimum screen off timeout should be longer than this. 378 private int mMaximumScreenDimDurationConfig; 379 380 // The maximum screen dim time expressed as a ratio relative to the screen 381 // off timeout. If the screen off timeout is very short then we want the 382 // dim timeout to also be quite short so that most of the time is spent on. 383 // Otherwise the user won't get much screen on time before dimming occurs. 384 private float mMaximumScreenDimRatioConfig; 385 386 // Whether device supports double tap to wake. 387 private boolean mSupportsDoubleTapWakeConfig; 388 389 // The screen off timeout setting value in milliseconds. 390 private int mScreenOffTimeoutSetting; 391 392 // The sleep timeout setting value in milliseconds. 393 private int mSleepTimeoutSetting; 394 395 // The maximum allowable screen off timeout according to the device 396 // administration policy. Overrides other settings. 397 private int mMaximumScreenOffTimeoutFromDeviceAdmin = Integer.MAX_VALUE; 398 399 // The stay on while plugged in setting. 400 // A bitfield of battery conditions under which to make the screen stay on. 401 private int mStayOnWhilePluggedInSetting; 402 403 // True if the device should stay on. 404 private boolean mStayOn; 405 406 // True if the lights should stay off until an explicit user action. 407 private static boolean sQuiescent; 408 409 // True if the proximity sensor reads a positive result. 410 private boolean mProximityPositive; 411 412 // Screen brightness setting limits. 413 private int mScreenBrightnessSettingMinimum; 414 private int mScreenBrightnessSettingMaximum; 415 private int mScreenBrightnessSettingDefault; 416 417 // The screen brightness setting, from 0 to 255. 418 // Use -1 if no value has been set. 419 private int mScreenBrightnessSetting; 420 421 // The screen auto-brightness adjustment setting, from -1 to 1. 422 // Use 0 if there is no adjustment. 423 private float mScreenAutoBrightnessAdjustmentSetting; 424 425 // The screen brightness mode. 426 // One of the Settings.System.SCREEN_BRIGHTNESS_MODE_* constants. 427 private int mScreenBrightnessModeSetting; 428 429 // The screen brightness setting override from the window manager 430 // to allow the current foreground activity to override the brightness. 431 // Use -1 to disable. 432 private int mScreenBrightnessOverrideFromWindowManager = -1; 433 434 // The window manager has determined the user to be inactive via other means. 435 // Set this to false to disable. 436 private boolean mUserInactiveOverrideFromWindowManager; 437 438 // The next possible user activity timeout after being explicitly told the user is inactive. 439 // Set to -1 when not told the user is inactive since the last period spent dozing or asleep. 440 private long mOverriddenTimeout = -1; 441 442 // The user activity timeout override from the window manager 443 // to allow the current foreground activity to override the user activity timeout. 444 // Use -1 to disable. 445 private long mUserActivityTimeoutOverrideFromWindowManager = -1; 446 447 // The screen brightness setting override from the settings application 448 // to temporarily adjust the brightness until next updated, 449 // Use -1 to disable. 450 private int mTemporaryScreenBrightnessSettingOverride = -1; 451 452 // The screen brightness adjustment setting override from the settings 453 // application to temporarily adjust the auto-brightness adjustment factor 454 // until next updated, in the range -1..1. 455 // Use NaN to disable. 456 private float mTemporaryScreenAutoBrightnessAdjustmentSettingOverride = Float.NaN; 457 458 // The screen state to use while dozing. 459 private int mDozeScreenStateOverrideFromDreamManager = Display.STATE_UNKNOWN; 460 461 // The screen brightness to use while dozing. 462 private int mDozeScreenBrightnessOverrideFromDreamManager = PowerManager.BRIGHTNESS_DEFAULT; 463 464 // Time when we last logged a warning about calling userActivity() without permission. 465 private long mLastWarningAboutUserActivityPermission = Long.MIN_VALUE; 466 467 // If true, the device is in low power mode. 468 private boolean mLowPowerModeEnabled; 469 470 // Current state of the low power mode setting. 471 private boolean mLowPowerModeSetting; 472 473 // Current state of whether the settings are allowing auto low power mode. 474 private boolean mAutoLowPowerModeConfigured; 475 476 // The user turned off low power mode below the trigger level 477 private boolean mAutoLowPowerModeSnoozing; 478 479 // True if the battery level is currently considered low. 480 private boolean mBatteryLevelLow; 481 482 // True if we are currently in device idle mode. 483 private boolean mDeviceIdleMode; 484 485 // True if we are currently in light device idle mode. 486 private boolean mLightDeviceIdleMode; 487 488 // Set of app ids that we will always respect the wake locks for. 489 int[] mDeviceIdleWhitelist = new int[0]; 490 491 // Set of app ids that are temporarily allowed to acquire wakelocks due to high-pri message 492 int[] mDeviceIdleTempWhitelist = new int[0]; 493 494 private final SparseArray<UidState> mUidState = new SparseArray<>(); 495 496 // We are currently in the middle of a batch change of uids. 497 private boolean mUidsChanging; 498 499 // Some uids have actually changed while mUidsChanging was true. 500 private boolean mUidsChanged; 501 502 // True if theater mode is enabled 503 private boolean mTheaterModeEnabled; 504 505 // True if double tap to wake is enabled 506 private boolean mDoubleTapWakeEnabled; 507 508 private final ArrayList<PowerManagerInternal.LowPowerModeListener> mLowPowerModeListeners 509 = new ArrayList<PowerManagerInternal.LowPowerModeListener>(); 510 511 // True if brightness should be affected by twilight. 512 private boolean mBrightnessUseTwilight; 513 514 private native void nativeInit(); 515 516 private static native void nativeAcquireSuspendBlocker(String name); 517 private static native void nativeReleaseSuspendBlocker(String name); 518 private static native void nativeSetInteractive(boolean enable); 519 private static native void nativeSetAutoSuspend(boolean enable); 520 private static native void nativeSendPowerHint(int hintId, int data); 521 private static native void nativeSetFeature(int featureId, int data); 522 523 public PowerManagerService(Context context) { 524 super(context); 525 mContext = context; 526 mHandlerThread = new ServiceThread(TAG, 527 Process.THREAD_PRIORITY_DISPLAY, false /*allowIo*/); 528 mHandlerThread.start(); 529 mHandler = new PowerManagerHandler(mHandlerThread.getLooper()); 530 531 synchronized (mLock) { 532 mWakeLockSuspendBlocker = createSuspendBlockerLocked("PowerManagerService.WakeLocks"); 533 mDisplaySuspendBlocker = createSuspendBlockerLocked("PowerManagerService.Display"); 534 mDisplaySuspendBlocker.acquire(); 535 mHoldingDisplaySuspendBlocker = true; 536 mHalAutoSuspendModeEnabled = false; 537 mHalInteractiveModeEnabled = true; 538 539 mWakefulness = WAKEFULNESS_AWAKE; 540 541 sQuiescent = SystemProperties.get(SYSTEM_PROPERTY_QUIESCENT, "0").equals("1"); 542 543 nativeInit(); 544 nativeSetAutoSuspend(false); 545 nativeSetInteractive(true); 546 nativeSetFeature(POWER_FEATURE_DOUBLE_TAP_TO_WAKE, 0); 547 } 548 } 549 550 @Override 551 public void onStart() { 552 publishBinderService(Context.POWER_SERVICE, new BinderService()); 553 publishLocalService(PowerManagerInternal.class, new LocalService()); 554 555 Watchdog.getInstance().addMonitor(this); 556 Watchdog.getInstance().addThread(mHandler); 557 } 558 559 @Override 560 public void onBootPhase(int phase) { 561 synchronized (mLock) { 562 if (phase == PHASE_THIRD_PARTY_APPS_CAN_START) { 563 incrementBootCount(); 564 565 } else if (phase == PHASE_BOOT_COMPLETED) { 566 final long now = SystemClock.uptimeMillis(); 567 mBootCompleted = true; 568 mDirty |= DIRTY_BOOT_COMPLETED; 569 userActivityNoUpdateLocked( 570 now, PowerManager.USER_ACTIVITY_EVENT_OTHER, 0, Process.SYSTEM_UID); 571 updatePowerStateLocked(); 572 573 if (!ArrayUtils.isEmpty(mBootCompletedRunnables)) { 574 Slog.d(TAG, "Posting " + mBootCompletedRunnables.length + " delayed runnables"); 575 for (Runnable r : mBootCompletedRunnables) { 576 BackgroundThread.getHandler().post(r); 577 } 578 } 579 mBootCompletedRunnables = null; 580 } 581 } 582 } 583 584 public void systemReady(IAppOpsService appOps) { 585 synchronized (mLock) { 586 mSystemReady = true; 587 mAppOps = appOps; 588 mDreamManager = getLocalService(DreamManagerInternal.class); 589 mDisplayManagerInternal = getLocalService(DisplayManagerInternal.class); 590 mPolicy = getLocalService(WindowManagerPolicy.class); 591 mBatteryManagerInternal = getLocalService(BatteryManagerInternal.class); 592 593 PowerManager pm = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE); 594 mScreenBrightnessSettingMinimum = pm.getMinimumScreenBrightnessSetting(); 595 mScreenBrightnessSettingMaximum = pm.getMaximumScreenBrightnessSetting(); 596 mScreenBrightnessSettingDefault = pm.getDefaultScreenBrightnessSetting(); 597 598 SensorManager sensorManager = new SystemSensorManager(mContext, mHandler.getLooper()); 599 600 // The notifier runs on the system server's main looper so as not to interfere 601 // with the animations and other critical functions of the power manager. 602 mBatteryStats = BatteryStatsService.getService(); 603 mNotifier = new Notifier(Looper.getMainLooper(), mContext, mBatteryStats, 604 mAppOps, createSuspendBlockerLocked("PowerManagerService.Broadcasts"), 605 mPolicy); 606 607 mWirelessChargerDetector = new WirelessChargerDetector(sensorManager, 608 createSuspendBlockerLocked("PowerManagerService.WirelessChargerDetector"), 609 mHandler); 610 mSettingsObserver = new SettingsObserver(mHandler); 611 612 mLightsManager = getLocalService(LightsManager.class); 613 mAttentionLight = mLightsManager.getLight(LightsManager.LIGHT_ID_ATTENTION); 614 615 // Initialize display power management. 616 mDisplayManagerInternal.initPowerManagement( 617 mDisplayPowerCallbacks, mHandler, sensorManager); 618 619 // Register for settings changes. 620 final ContentResolver resolver = mContext.getContentResolver(); 621 resolver.registerContentObserver(Settings.Secure.getUriFor( 622 Settings.Secure.SCREENSAVER_ENABLED), 623 false, mSettingsObserver, UserHandle.USER_ALL); 624 resolver.registerContentObserver(Settings.Secure.getUriFor( 625 Settings.Secure.SCREENSAVER_ACTIVATE_ON_SLEEP), 626 false, mSettingsObserver, UserHandle.USER_ALL); 627 resolver.registerContentObserver(Settings.Secure.getUriFor( 628 Settings.Secure.SCREENSAVER_ACTIVATE_ON_DOCK), 629 false, mSettingsObserver, UserHandle.USER_ALL); 630 resolver.registerContentObserver(Settings.System.getUriFor( 631 Settings.System.SCREEN_OFF_TIMEOUT), 632 false, mSettingsObserver, UserHandle.USER_ALL); 633 resolver.registerContentObserver(Settings.Secure.getUriFor( 634 Settings.Secure.SLEEP_TIMEOUT), 635 false, mSettingsObserver, UserHandle.USER_ALL); 636 resolver.registerContentObserver(Settings.Global.getUriFor( 637 Settings.Global.STAY_ON_WHILE_PLUGGED_IN), 638 false, mSettingsObserver, UserHandle.USER_ALL); 639 resolver.registerContentObserver(Settings.System.getUriFor( 640 Settings.System.SCREEN_BRIGHTNESS), 641 false, mSettingsObserver, UserHandle.USER_ALL); 642 resolver.registerContentObserver(Settings.System.getUriFor( 643 Settings.System.SCREEN_BRIGHTNESS_MODE), 644 false, mSettingsObserver, UserHandle.USER_ALL); 645 resolver.registerContentObserver(Settings.System.getUriFor( 646 Settings.System.SCREEN_AUTO_BRIGHTNESS_ADJ), 647 false, mSettingsObserver, UserHandle.USER_ALL); 648 resolver.registerContentObserver(Settings.Global.getUriFor( 649 Settings.Global.LOW_POWER_MODE), 650 false, mSettingsObserver, UserHandle.USER_ALL); 651 resolver.registerContentObserver(Settings.Global.getUriFor( 652 Settings.Global.LOW_POWER_MODE_TRIGGER_LEVEL), 653 false, mSettingsObserver, UserHandle.USER_ALL); 654 resolver.registerContentObserver(Settings.Global.getUriFor( 655 Settings.Global.THEATER_MODE_ON), 656 false, mSettingsObserver, UserHandle.USER_ALL); 657 resolver.registerContentObserver(Settings.Secure.getUriFor( 658 Settings.Secure.DOUBLE_TAP_TO_WAKE), 659 false, mSettingsObserver, UserHandle.USER_ALL); 660 resolver.registerContentObserver(Settings.Secure.getUriFor( 661 Secure.BRIGHTNESS_USE_TWILIGHT), 662 false, mSettingsObserver, UserHandle.USER_ALL); 663 IVrManager vrManager = 664 (IVrManager) getBinderService(VrManagerService.VR_MANAGER_BINDER_SERVICE); 665 if (vrManager != null) { 666 try { 667 vrManager.registerListener(mVrStateCallbacks); 668 } catch (RemoteException e) { 669 Slog.e(TAG, "Failed to register VR mode state listener: " + e); 670 } 671 } 672 // Go. 673 readConfigurationLocked(); 674 updateSettingsLocked(); 675 mDirty |= DIRTY_BATTERY_STATE; 676 updatePowerStateLocked(); 677 } 678 679 // Register for broadcasts from other components of the system. 680 IntentFilter filter = new IntentFilter(); 681 filter.addAction(Intent.ACTION_BATTERY_CHANGED); 682 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 683 mContext.registerReceiver(new BatteryReceiver(), filter, null, mHandler); 684 685 filter = new IntentFilter(); 686 filter.addAction(Intent.ACTION_DREAMING_STARTED); 687 filter.addAction(Intent.ACTION_DREAMING_STOPPED); 688 mContext.registerReceiver(new DreamReceiver(), filter, null, mHandler); 689 690 filter = new IntentFilter(); 691 filter.addAction(Intent.ACTION_USER_SWITCHED); 692 mContext.registerReceiver(new UserSwitchedReceiver(), filter, null, mHandler); 693 694 filter = new IntentFilter(); 695 filter.addAction(Intent.ACTION_DOCK_EVENT); 696 mContext.registerReceiver(new DockReceiver(), filter, null, mHandler); 697 } 698 699 private void readConfigurationLocked() { 700 final Resources resources = mContext.getResources(); 701 702 mDecoupleHalAutoSuspendModeFromDisplayConfig = resources.getBoolean( 703 com.android.internal.R.bool.config_powerDecoupleAutoSuspendModeFromDisplay); 704 mDecoupleHalInteractiveModeFromDisplayConfig = resources.getBoolean( 705 com.android.internal.R.bool.config_powerDecoupleInteractiveModeFromDisplay); 706 mWakeUpWhenPluggedOrUnpluggedConfig = resources.getBoolean( 707 com.android.internal.R.bool.config_unplugTurnsOnScreen); 708 mWakeUpWhenPluggedOrUnpluggedInTheaterModeConfig = resources.getBoolean( 709 com.android.internal.R.bool.config_allowTheaterModeWakeFromUnplug); 710 mSuspendWhenScreenOffDueToProximityConfig = resources.getBoolean( 711 com.android.internal.R.bool.config_suspendWhenScreenOffDueToProximity); 712 mDreamsSupportedConfig = resources.getBoolean( 713 com.android.internal.R.bool.config_dreamsSupported); 714 mDreamsEnabledByDefaultConfig = resources.getBoolean( 715 com.android.internal.R.bool.config_dreamsEnabledByDefault); 716 mDreamsActivatedOnSleepByDefaultConfig = resources.getBoolean( 717 com.android.internal.R.bool.config_dreamsActivatedOnSleepByDefault); 718 mDreamsActivatedOnDockByDefaultConfig = resources.getBoolean( 719 com.android.internal.R.bool.config_dreamsActivatedOnDockByDefault); 720 mDreamsEnabledOnBatteryConfig = resources.getBoolean( 721 com.android.internal.R.bool.config_dreamsEnabledOnBattery); 722 mDreamsBatteryLevelMinimumWhenPoweredConfig = resources.getInteger( 723 com.android.internal.R.integer.config_dreamsBatteryLevelMinimumWhenPowered); 724 mDreamsBatteryLevelMinimumWhenNotPoweredConfig = resources.getInteger( 725 com.android.internal.R.integer.config_dreamsBatteryLevelMinimumWhenNotPowered); 726 mDreamsBatteryLevelDrainCutoffConfig = resources.getInteger( 727 com.android.internal.R.integer.config_dreamsBatteryLevelDrainCutoff); 728 mDozeAfterScreenOffConfig = resources.getBoolean( 729 com.android.internal.R.bool.config_dozeAfterScreenOff); 730 mMinimumScreenOffTimeoutConfig = resources.getInteger( 731 com.android.internal.R.integer.config_minimumScreenOffTimeout); 732 mMaximumScreenDimDurationConfig = resources.getInteger( 733 com.android.internal.R.integer.config_maximumScreenDimDuration); 734 mMaximumScreenDimRatioConfig = resources.getFraction( 735 com.android.internal.R.fraction.config_maximumScreenDimRatio, 1, 1); 736 mSupportsDoubleTapWakeConfig = resources.getBoolean( 737 com.android.internal.R.bool.config_supportDoubleTapWake); 738 } 739 740 private void updateSettingsLocked() { 741 final ContentResolver resolver = mContext.getContentResolver(); 742 743 mDreamsEnabledSetting = (Settings.Secure.getIntForUser(resolver, 744 Settings.Secure.SCREENSAVER_ENABLED, 745 mDreamsEnabledByDefaultConfig ? 1 : 0, 746 UserHandle.USER_CURRENT) != 0); 747 mDreamsActivateOnSleepSetting = (Settings.Secure.getIntForUser(resolver, 748 Settings.Secure.SCREENSAVER_ACTIVATE_ON_SLEEP, 749 mDreamsActivatedOnSleepByDefaultConfig ? 1 : 0, 750 UserHandle.USER_CURRENT) != 0); 751 mDreamsActivateOnDockSetting = (Settings.Secure.getIntForUser(resolver, 752 Settings.Secure.SCREENSAVER_ACTIVATE_ON_DOCK, 753 mDreamsActivatedOnDockByDefaultConfig ? 1 : 0, 754 UserHandle.USER_CURRENT) != 0); 755 mScreenOffTimeoutSetting = Settings.System.getIntForUser(resolver, 756 Settings.System.SCREEN_OFF_TIMEOUT, DEFAULT_SCREEN_OFF_TIMEOUT, 757 UserHandle.USER_CURRENT); 758 mSleepTimeoutSetting = Settings.Secure.getIntForUser(resolver, 759 Settings.Secure.SLEEP_TIMEOUT, DEFAULT_SLEEP_TIMEOUT, 760 UserHandle.USER_CURRENT); 761 mStayOnWhilePluggedInSetting = Settings.Global.getInt(resolver, 762 Settings.Global.STAY_ON_WHILE_PLUGGED_IN, BatteryManager.BATTERY_PLUGGED_AC); 763 mTheaterModeEnabled = Settings.Global.getInt(mContext.getContentResolver(), 764 Settings.Global.THEATER_MODE_ON, 0) == 1; 765 766 if (mSupportsDoubleTapWakeConfig) { 767 boolean doubleTapWakeEnabled = Settings.Secure.getIntForUser(resolver, 768 Settings.Secure.DOUBLE_TAP_TO_WAKE, DEFAULT_DOUBLE_TAP_TO_WAKE, 769 UserHandle.USER_CURRENT) != 0; 770 if (doubleTapWakeEnabled != mDoubleTapWakeEnabled) { 771 mDoubleTapWakeEnabled = doubleTapWakeEnabled; 772 nativeSetFeature(POWER_FEATURE_DOUBLE_TAP_TO_WAKE, mDoubleTapWakeEnabled ? 1 : 0); 773 } 774 } 775 776 final int oldScreenBrightnessSetting = mScreenBrightnessSetting; 777 mScreenBrightnessSetting = Settings.System.getIntForUser(resolver, 778 Settings.System.SCREEN_BRIGHTNESS, mScreenBrightnessSettingDefault, 779 UserHandle.USER_CURRENT); 780 if (oldScreenBrightnessSetting != mScreenBrightnessSetting) { 781 mTemporaryScreenBrightnessSettingOverride = -1; 782 } 783 784 final float oldScreenAutoBrightnessAdjustmentSetting = 785 mScreenAutoBrightnessAdjustmentSetting; 786 mScreenAutoBrightnessAdjustmentSetting = Settings.System.getFloatForUser(resolver, 787 Settings.System.SCREEN_AUTO_BRIGHTNESS_ADJ, 0.0f, 788 UserHandle.USER_CURRENT); 789 if (oldScreenAutoBrightnessAdjustmentSetting != mScreenAutoBrightnessAdjustmentSetting) { 790 mTemporaryScreenAutoBrightnessAdjustmentSettingOverride = Float.NaN; 791 } 792 793 mScreenBrightnessModeSetting = Settings.System.getIntForUser(resolver, 794 Settings.System.SCREEN_BRIGHTNESS_MODE, 795 Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL, UserHandle.USER_CURRENT); 796 797 mBrightnessUseTwilight = Settings.Secure.getIntForUser(resolver, 798 Secure.BRIGHTNESS_USE_TWILIGHT, 0, UserHandle.USER_CURRENT) != 0; 799 800 final boolean lowPowerModeEnabled = Settings.Global.getInt(resolver, 801 Settings.Global.LOW_POWER_MODE, 0) != 0; 802 final boolean autoLowPowerModeConfigured = Settings.Global.getInt(resolver, 803 Settings.Global.LOW_POWER_MODE_TRIGGER_LEVEL, 0) != 0; 804 if (lowPowerModeEnabled != mLowPowerModeSetting 805 || autoLowPowerModeConfigured != mAutoLowPowerModeConfigured) { 806 mLowPowerModeSetting = lowPowerModeEnabled; 807 mAutoLowPowerModeConfigured = autoLowPowerModeConfigured; 808 updateLowPowerModeLocked(); 809 } 810 811 mDirty |= DIRTY_SETTINGS; 812 } 813 814 private void postAfterBootCompleted(Runnable r) { 815 if (mBootCompleted) { 816 BackgroundThread.getHandler().post(r); 817 } else { 818 Slog.d(TAG, "Delaying runnable until system is booted"); 819 mBootCompletedRunnables = ArrayUtils.appendElement(Runnable.class, 820 mBootCompletedRunnables, r); 821 } 822 } 823 824 private void updateLowPowerModeLocked() { 825 if ((mIsPowered || !mBatteryLevelLow && !mBootCompleted) && mLowPowerModeSetting) { 826 if (DEBUG_SPEW) { 827 Slog.d(TAG, "updateLowPowerModeLocked: powered or booting with sufficient battery," 828 + " turning setting off"); 829 } 830 // Turn setting off if powered 831 Settings.Global.putInt(mContext.getContentResolver(), 832 Settings.Global.LOW_POWER_MODE, 0); 833 mLowPowerModeSetting = false; 834 } 835 final boolean autoLowPowerModeEnabled = !mIsPowered && mAutoLowPowerModeConfigured 836 && !mAutoLowPowerModeSnoozing && mBatteryLevelLow; 837 final boolean lowPowerModeEnabled = mLowPowerModeSetting || autoLowPowerModeEnabled; 838 839 if (mLowPowerModeEnabled != lowPowerModeEnabled) { 840 mLowPowerModeEnabled = lowPowerModeEnabled; 841 powerHintInternal(PowerHint.LOW_POWER, lowPowerModeEnabled ? 1 : 0); 842 postAfterBootCompleted(new Runnable() { 843 @Override 844 public void run() { 845 Intent intent = new Intent(PowerManager.ACTION_POWER_SAVE_MODE_CHANGING) 846 .putExtra(PowerManager.EXTRA_POWER_SAVE_MODE, mLowPowerModeEnabled) 847 .addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 848 mContext.sendBroadcast(intent); 849 ArrayList<PowerManagerInternal.LowPowerModeListener> listeners; 850 synchronized (mLock) { 851 listeners = new ArrayList<PowerManagerInternal.LowPowerModeListener>( 852 mLowPowerModeListeners); 853 } 854 for (int i=0; i<listeners.size(); i++) { 855 listeners.get(i).onLowPowerModeChanged(lowPowerModeEnabled); 856 } 857 intent = new Intent(PowerManager.ACTION_POWER_SAVE_MODE_CHANGED); 858 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 859 mContext.sendBroadcast(intent); 860 // Send internal version that requires signature permission. 861 intent = new Intent(PowerManager.ACTION_POWER_SAVE_MODE_CHANGED_INTERNAL); 862 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 863 mContext.sendBroadcastAsUser(intent, UserHandle.ALL, 864 Manifest.permission.DEVICE_POWER); 865 } 866 }); 867 } 868 } 869 870 private void handleSettingsChangedLocked() { 871 updateSettingsLocked(); 872 updatePowerStateLocked(); 873 } 874 875 private void acquireWakeLockInternal(IBinder lock, int flags, String tag, String packageName, 876 WorkSource ws, String historyTag, int uid, int pid) { 877 synchronized (mLock) { 878 if (DEBUG_SPEW) { 879 Slog.d(TAG, "acquireWakeLockInternal: lock=" + Objects.hashCode(lock) 880 + ", flags=0x" + Integer.toHexString(flags) 881 + ", tag=\"" + tag + "\", ws=" + ws + ", uid=" + uid + ", pid=" + pid); 882 } 883 884 WakeLock wakeLock; 885 int index = findWakeLockIndexLocked(lock); 886 boolean notifyAcquire; 887 if (index >= 0) { 888 wakeLock = mWakeLocks.get(index); 889 if (!wakeLock.hasSameProperties(flags, tag, ws, uid, pid)) { 890 // Update existing wake lock. This shouldn't happen but is harmless. 891 notifyWakeLockChangingLocked(wakeLock, flags, tag, packageName, 892 uid, pid, ws, historyTag); 893 wakeLock.updateProperties(flags, tag, packageName, ws, historyTag, uid, pid); 894 } 895 notifyAcquire = false; 896 } else { 897 UidState state = mUidState.get(uid); 898 if (state == null) { 899 state = new UidState(uid); 900 state.mProcState = ActivityManager.PROCESS_STATE_NONEXISTENT; 901 mUidState.put(uid, state); 902 } 903 state.mNumWakeLocks++; 904 wakeLock = new WakeLock(lock, flags, tag, packageName, ws, historyTag, uid, pid, 905 state); 906 try { 907 lock.linkToDeath(wakeLock, 0); 908 } catch (RemoteException ex) { 909 throw new IllegalArgumentException("Wake lock is already dead."); 910 } 911 mWakeLocks.add(wakeLock); 912 setWakeLockDisabledStateLocked(wakeLock); 913 notifyAcquire = true; 914 } 915 916 applyWakeLockFlagsOnAcquireLocked(wakeLock, uid); 917 mDirty |= DIRTY_WAKE_LOCKS; 918 updatePowerStateLocked(); 919 if (notifyAcquire) { 920 // This needs to be done last so we are sure we have acquired the 921 // kernel wake lock. Otherwise we have a race where the system may 922 // go to sleep between the time we start the accounting in battery 923 // stats and when we actually get around to telling the kernel to 924 // stay awake. 925 notifyWakeLockAcquiredLocked(wakeLock); 926 } 927 } 928 } 929 930 @SuppressWarnings("deprecation") 931 private static boolean isScreenLock(final WakeLock wakeLock) { 932 switch (wakeLock.mFlags & PowerManager.WAKE_LOCK_LEVEL_MASK) { 933 case PowerManager.FULL_WAKE_LOCK: 934 case PowerManager.SCREEN_BRIGHT_WAKE_LOCK: 935 case PowerManager.SCREEN_DIM_WAKE_LOCK: 936 return true; 937 } 938 return false; 939 } 940 941 private void applyWakeLockFlagsOnAcquireLocked(WakeLock wakeLock, int uid) { 942 if ((wakeLock.mFlags & PowerManager.ACQUIRE_CAUSES_WAKEUP) != 0 943 && isScreenLock(wakeLock)) { 944 String opPackageName; 945 int opUid; 946 if (wakeLock.mWorkSource != null && wakeLock.mWorkSource.getName(0) != null) { 947 opPackageName = wakeLock.mWorkSource.getName(0); 948 opUid = wakeLock.mWorkSource.get(0); 949 } else { 950 opPackageName = wakeLock.mPackageName; 951 opUid = wakeLock.mWorkSource != null ? wakeLock.mWorkSource.get(0) 952 : wakeLock.mOwnerUid; 953 } 954 wakeUpNoUpdateLocked(SystemClock.uptimeMillis(), wakeLock.mTag, opUid, 955 opPackageName, opUid); 956 } 957 } 958 959 private void releaseWakeLockInternal(IBinder lock, int flags) { 960 synchronized (mLock) { 961 int index = findWakeLockIndexLocked(lock); 962 if (index < 0) { 963 if (DEBUG_SPEW) { 964 Slog.d(TAG, "releaseWakeLockInternal: lock=" + Objects.hashCode(lock) 965 + " [not found], flags=0x" + Integer.toHexString(flags)); 966 } 967 return; 968 } 969 970 WakeLock wakeLock = mWakeLocks.get(index); 971 if (DEBUG_SPEW) { 972 Slog.d(TAG, "releaseWakeLockInternal: lock=" + Objects.hashCode(lock) 973 + " [" + wakeLock.mTag + "], flags=0x" + Integer.toHexString(flags)); 974 } 975 976 if ((flags & PowerManager.RELEASE_FLAG_WAIT_FOR_NO_PROXIMITY) != 0) { 977 mRequestWaitForNegativeProximity = true; 978 } 979 980 wakeLock.mLock.unlinkToDeath(wakeLock, 0); 981 removeWakeLockLocked(wakeLock, index); 982 } 983 } 984 985 private void handleWakeLockDeath(WakeLock wakeLock) { 986 synchronized (mLock) { 987 if (DEBUG_SPEW) { 988 Slog.d(TAG, "handleWakeLockDeath: lock=" + Objects.hashCode(wakeLock.mLock) 989 + " [" + wakeLock.mTag + "]"); 990 } 991 992 int index = mWakeLocks.indexOf(wakeLock); 993 if (index < 0) { 994 return; 995 } 996 997 removeWakeLockLocked(wakeLock, index); 998 } 999 } 1000 1001 private void removeWakeLockLocked(WakeLock wakeLock, int index) { 1002 mWakeLocks.remove(index); 1003 UidState state = wakeLock.mUidState; 1004 state.mNumWakeLocks--; 1005 if (state.mNumWakeLocks <= 0 && 1006 state.mProcState == ActivityManager.PROCESS_STATE_NONEXISTENT) { 1007 mUidState.remove(state.mUid); 1008 } 1009 notifyWakeLockReleasedLocked(wakeLock); 1010 1011 applyWakeLockFlagsOnReleaseLocked(wakeLock); 1012 mDirty |= DIRTY_WAKE_LOCKS; 1013 updatePowerStateLocked(); 1014 } 1015 1016 private void applyWakeLockFlagsOnReleaseLocked(WakeLock wakeLock) { 1017 if ((wakeLock.mFlags & PowerManager.ON_AFTER_RELEASE) != 0 1018 && isScreenLock(wakeLock)) { 1019 userActivityNoUpdateLocked(SystemClock.uptimeMillis(), 1020 PowerManager.USER_ACTIVITY_EVENT_OTHER, 1021 PowerManager.USER_ACTIVITY_FLAG_NO_CHANGE_LIGHTS, 1022 wakeLock.mOwnerUid); 1023 } 1024 } 1025 1026 private void updateWakeLockWorkSourceInternal(IBinder lock, WorkSource ws, String historyTag, 1027 int callingUid) { 1028 synchronized (mLock) { 1029 int index = findWakeLockIndexLocked(lock); 1030 if (index < 0) { 1031 if (DEBUG_SPEW) { 1032 Slog.d(TAG, "updateWakeLockWorkSourceInternal: lock=" + Objects.hashCode(lock) 1033 + " [not found], ws=" + ws); 1034 } 1035 throw new IllegalArgumentException("Wake lock not active: " + lock 1036 + " from uid " + callingUid); 1037 } 1038 1039 WakeLock wakeLock = mWakeLocks.get(index); 1040 if (DEBUG_SPEW) { 1041 Slog.d(TAG, "updateWakeLockWorkSourceInternal: lock=" + Objects.hashCode(lock) 1042 + " [" + wakeLock.mTag + "], ws=" + ws); 1043 } 1044 1045 if (!wakeLock.hasSameWorkSource(ws)) { 1046 notifyWakeLockChangingLocked(wakeLock, wakeLock.mFlags, wakeLock.mTag, 1047 wakeLock.mPackageName, wakeLock.mOwnerUid, wakeLock.mOwnerPid, 1048 ws, historyTag); 1049 wakeLock.mHistoryTag = historyTag; 1050 wakeLock.updateWorkSource(ws); 1051 } 1052 } 1053 } 1054 1055 private int findWakeLockIndexLocked(IBinder lock) { 1056 final int count = mWakeLocks.size(); 1057 for (int i = 0; i < count; i++) { 1058 if (mWakeLocks.get(i).mLock == lock) { 1059 return i; 1060 } 1061 } 1062 return -1; 1063 } 1064 1065 private void notifyWakeLockAcquiredLocked(WakeLock wakeLock) { 1066 if (mSystemReady && !wakeLock.mDisabled) { 1067 wakeLock.mNotifiedAcquired = true; 1068 mNotifier.onWakeLockAcquired(wakeLock.mFlags, wakeLock.mTag, wakeLock.mPackageName, 1069 wakeLock.mOwnerUid, wakeLock.mOwnerPid, wakeLock.mWorkSource, 1070 wakeLock.mHistoryTag); 1071 restartNofifyLongTimerLocked(wakeLock); 1072 } 1073 } 1074 1075 private void enqueueNotifyLongMsgLocked(long time) { 1076 mNotifyLongScheduled = time; 1077 Message msg = mHandler.obtainMessage(MSG_CHECK_FOR_LONG_WAKELOCKS); 1078 msg.setAsynchronous(true); 1079 mHandler.sendMessageAtTime(msg, time); 1080 } 1081 1082 private void restartNofifyLongTimerLocked(WakeLock wakeLock) { 1083 wakeLock.mAcquireTime = SystemClock.uptimeMillis(); 1084 if ((wakeLock.mFlags & PowerManager.WAKE_LOCK_LEVEL_MASK) 1085 == PowerManager.PARTIAL_WAKE_LOCK && mNotifyLongScheduled == 0) { 1086 enqueueNotifyLongMsgLocked(wakeLock.mAcquireTime + MIN_LONG_WAKE_CHECK_INTERVAL); 1087 } 1088 } 1089 1090 private void notifyWakeLockLongStartedLocked(WakeLock wakeLock) { 1091 if (mSystemReady && !wakeLock.mDisabled) { 1092 wakeLock.mNotifiedLong = true; 1093 mNotifier.onLongPartialWakeLockStart(wakeLock.mTag, wakeLock.mOwnerUid, 1094 wakeLock.mWorkSource, wakeLock.mHistoryTag); 1095 } 1096 } 1097 1098 private void notifyWakeLockLongFinishedLocked(WakeLock wakeLock) { 1099 if (wakeLock.mNotifiedLong) { 1100 wakeLock.mNotifiedLong = false; 1101 mNotifier.onLongPartialWakeLockFinish(wakeLock.mTag, wakeLock.mOwnerUid, 1102 wakeLock.mWorkSource, wakeLock.mHistoryTag); 1103 } 1104 } 1105 1106 private void notifyWakeLockChangingLocked(WakeLock wakeLock, int flags, String tag, 1107 String packageName, int uid, int pid, WorkSource ws, String historyTag) { 1108 if (mSystemReady && wakeLock.mNotifiedAcquired) { 1109 mNotifier.onWakeLockChanging(wakeLock.mFlags, wakeLock.mTag, wakeLock.mPackageName, 1110 wakeLock.mOwnerUid, wakeLock.mOwnerPid, wakeLock.mWorkSource, 1111 wakeLock.mHistoryTag, flags, tag, packageName, uid, pid, ws, historyTag); 1112 notifyWakeLockLongFinishedLocked(wakeLock); 1113 // Changing the wake lock will count as releasing the old wake lock(s) and 1114 // acquiring the new ones... we do this because otherwise once a wakelock 1115 // becomes long, if we just continued to treat it as long we can get in to 1116 // situations where we spam battery stats with every following change to it. 1117 restartNofifyLongTimerLocked(wakeLock); 1118 } 1119 } 1120 1121 private void notifyWakeLockReleasedLocked(WakeLock wakeLock) { 1122 if (mSystemReady && wakeLock.mNotifiedAcquired) { 1123 wakeLock.mNotifiedAcquired = false; 1124 wakeLock.mAcquireTime = 0; 1125 mNotifier.onWakeLockReleased(wakeLock.mFlags, wakeLock.mTag, 1126 wakeLock.mPackageName, wakeLock.mOwnerUid, wakeLock.mOwnerPid, 1127 wakeLock.mWorkSource, wakeLock.mHistoryTag); 1128 notifyWakeLockLongFinishedLocked(wakeLock); 1129 } 1130 } 1131 1132 @SuppressWarnings("deprecation") 1133 private boolean isWakeLockLevelSupportedInternal(int level) { 1134 synchronized (mLock) { 1135 switch (level) { 1136 case PowerManager.PARTIAL_WAKE_LOCK: 1137 case PowerManager.SCREEN_DIM_WAKE_LOCK: 1138 case PowerManager.SCREEN_BRIGHT_WAKE_LOCK: 1139 case PowerManager.FULL_WAKE_LOCK: 1140 case PowerManager.DOZE_WAKE_LOCK: 1141 case PowerManager.DRAW_WAKE_LOCK: 1142 return true; 1143 1144 case PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK: 1145 return mSystemReady && mDisplayManagerInternal.isProximitySensorAvailable(); 1146 1147 default: 1148 return false; 1149 } 1150 } 1151 } 1152 1153 // Called from native code. 1154 private void userActivityFromNative(long eventTime, int event, int flags) { 1155 userActivityInternal(eventTime, event, flags, Process.SYSTEM_UID); 1156 } 1157 1158 private void userActivityInternal(long eventTime, int event, int flags, int uid) { 1159 synchronized (mLock) { 1160 if (userActivityNoUpdateLocked(eventTime, event, flags, uid)) { 1161 updatePowerStateLocked(); 1162 } 1163 } 1164 } 1165 1166 private boolean userActivityNoUpdateLocked(long eventTime, int event, int flags, int uid) { 1167 if (DEBUG_SPEW) { 1168 Slog.d(TAG, "userActivityNoUpdateLocked: eventTime=" + eventTime 1169 + ", event=" + event + ", flags=0x" + Integer.toHexString(flags) 1170 + ", uid=" + uid); 1171 } 1172 1173 if (eventTime < mLastSleepTime || eventTime < mLastWakeTime 1174 || !mBootCompleted || !mSystemReady) { 1175 return false; 1176 } 1177 1178 Trace.traceBegin(Trace.TRACE_TAG_POWER, "userActivity"); 1179 try { 1180 if (eventTime > mLastInteractivePowerHintTime) { 1181 powerHintInternal(PowerHint.INTERACTION, 0); 1182 mLastInteractivePowerHintTime = eventTime; 1183 } 1184 1185 mNotifier.onUserActivity(event, uid); 1186 1187 if (mUserInactiveOverrideFromWindowManager) { 1188 mUserInactiveOverrideFromWindowManager = false; 1189 mOverriddenTimeout = -1; 1190 } 1191 1192 if (mWakefulness == WAKEFULNESS_ASLEEP 1193 || mWakefulness == WAKEFULNESS_DOZING 1194 || (flags & PowerManager.USER_ACTIVITY_FLAG_INDIRECT) != 0) { 1195 return false; 1196 } 1197 1198 if ((flags & PowerManager.USER_ACTIVITY_FLAG_NO_CHANGE_LIGHTS) != 0) { 1199 if (eventTime > mLastUserActivityTimeNoChangeLights 1200 && eventTime > mLastUserActivityTime) { 1201 mLastUserActivityTimeNoChangeLights = eventTime; 1202 mDirty |= DIRTY_USER_ACTIVITY; 1203 if (event == PowerManager.USER_ACTIVITY_EVENT_BUTTON) { 1204 mDirty |= DIRTY_QUIESCENT; 1205 } 1206 1207 return true; 1208 } 1209 } else { 1210 if (eventTime > mLastUserActivityTime) { 1211 mLastUserActivityTime = eventTime; 1212 mDirty |= DIRTY_USER_ACTIVITY; 1213 if (event == PowerManager.USER_ACTIVITY_EVENT_BUTTON) { 1214 mDirty |= DIRTY_QUIESCENT; 1215 } 1216 return true; 1217 } 1218 } 1219 } finally { 1220 Trace.traceEnd(Trace.TRACE_TAG_POWER); 1221 } 1222 return false; 1223 } 1224 1225 private void wakeUpInternal(long eventTime, String reason, int uid, String opPackageName, 1226 int opUid) { 1227 synchronized (mLock) { 1228 if (wakeUpNoUpdateLocked(eventTime, reason, uid, opPackageName, opUid)) { 1229 updatePowerStateLocked(); 1230 } 1231 } 1232 } 1233 1234 private boolean wakeUpNoUpdateLocked(long eventTime, String reason, int reasonUid, 1235 String opPackageName, int opUid) { 1236 if (DEBUG_SPEW) { 1237 Slog.d(TAG, "wakeUpNoUpdateLocked: eventTime=" + eventTime + ", uid=" + reasonUid); 1238 } 1239 1240 if (eventTime < mLastSleepTime || mWakefulness == WAKEFULNESS_AWAKE 1241 || !mBootCompleted || !mSystemReady) { 1242 return false; 1243 } 1244 1245 Trace.traceBegin(Trace.TRACE_TAG_POWER, "wakeUp"); 1246 try { 1247 switch (mWakefulness) { 1248 case WAKEFULNESS_ASLEEP: 1249 Slog.i(TAG, "Waking up from sleep (uid " + reasonUid +")..."); 1250 break; 1251 case WAKEFULNESS_DREAMING: 1252 Slog.i(TAG, "Waking up from dream (uid " + reasonUid +")..."); 1253 break; 1254 case WAKEFULNESS_DOZING: 1255 Slog.i(TAG, "Waking up from dozing (uid " + reasonUid +")..."); 1256 break; 1257 } 1258 1259 mLastWakeTime = eventTime; 1260 setWakefulnessLocked(WAKEFULNESS_AWAKE, 0); 1261 1262 mNotifier.onWakeUp(reason, reasonUid, opPackageName, opUid); 1263 userActivityNoUpdateLocked( 1264 eventTime, PowerManager.USER_ACTIVITY_EVENT_OTHER, 0, reasonUid); 1265 } finally { 1266 Trace.traceEnd(Trace.TRACE_TAG_POWER); 1267 } 1268 return true; 1269 } 1270 1271 private void goToSleepInternal(long eventTime, int reason, int flags, int uid) { 1272 synchronized (mLock) { 1273 if (goToSleepNoUpdateLocked(eventTime, reason, flags, uid)) { 1274 updatePowerStateLocked(); 1275 } 1276 } 1277 } 1278 1279 // This method is called goToSleep for historical reasons but we actually start 1280 // dozing before really going to sleep. 1281 @SuppressWarnings("deprecation") 1282 private boolean goToSleepNoUpdateLocked(long eventTime, int reason, int flags, int uid) { 1283 if (DEBUG_SPEW) { 1284 Slog.d(TAG, "goToSleepNoUpdateLocked: eventTime=" + eventTime 1285 + ", reason=" + reason + ", flags=" + flags + ", uid=" + uid); 1286 } 1287 1288 if (eventTime < mLastWakeTime 1289 || mWakefulness == WAKEFULNESS_ASLEEP 1290 || mWakefulness == WAKEFULNESS_DOZING 1291 || !mBootCompleted || !mSystemReady) { 1292 return false; 1293 } 1294 1295 Trace.traceBegin(Trace.TRACE_TAG_POWER, "goToSleep"); 1296 try { 1297 switch (reason) { 1298 case PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN: 1299 Slog.i(TAG, "Going to sleep due to device administration policy " 1300 + "(uid " + uid +")..."); 1301 break; 1302 case PowerManager.GO_TO_SLEEP_REASON_TIMEOUT: 1303 Slog.i(TAG, "Going to sleep due to screen timeout (uid " + uid +")..."); 1304 break; 1305 case PowerManager.GO_TO_SLEEP_REASON_LID_SWITCH: 1306 Slog.i(TAG, "Going to sleep due to lid switch (uid " + uid +")..."); 1307 break; 1308 case PowerManager.GO_TO_SLEEP_REASON_POWER_BUTTON: 1309 Slog.i(TAG, "Going to sleep due to power button (uid " + uid +")..."); 1310 break; 1311 case PowerManager.GO_TO_SLEEP_REASON_SLEEP_BUTTON: 1312 Slog.i(TAG, "Going to sleep due to sleep button (uid " + uid +")..."); 1313 break; 1314 case PowerManager.GO_TO_SLEEP_REASON_HDMI: 1315 Slog.i(TAG, "Going to sleep due to HDMI standby (uid " + uid +")..."); 1316 break; 1317 default: 1318 Slog.i(TAG, "Going to sleep by application request (uid " + uid +")..."); 1319 reason = PowerManager.GO_TO_SLEEP_REASON_APPLICATION; 1320 break; 1321 } 1322 1323 mLastSleepTime = eventTime; 1324 mSandmanSummoned = true; 1325 setWakefulnessLocked(WAKEFULNESS_DOZING, reason); 1326 1327 // Report the number of wake locks that will be cleared by going to sleep. 1328 int numWakeLocksCleared = 0; 1329 final int numWakeLocks = mWakeLocks.size(); 1330 for (int i = 0; i < numWakeLocks; i++) { 1331 final WakeLock wakeLock = mWakeLocks.get(i); 1332 switch (wakeLock.mFlags & PowerManager.WAKE_LOCK_LEVEL_MASK) { 1333 case PowerManager.FULL_WAKE_LOCK: 1334 case PowerManager.SCREEN_BRIGHT_WAKE_LOCK: 1335 case PowerManager.SCREEN_DIM_WAKE_LOCK: 1336 numWakeLocksCleared += 1; 1337 break; 1338 } 1339 } 1340 EventLog.writeEvent(EventLogTags.POWER_SLEEP_REQUESTED, numWakeLocksCleared); 1341 1342 // Skip dozing if requested. 1343 if ((flags & PowerManager.GO_TO_SLEEP_FLAG_NO_DOZE) != 0) { 1344 reallyGoToSleepNoUpdateLocked(eventTime, uid); 1345 } 1346 } finally { 1347 Trace.traceEnd(Trace.TRACE_TAG_POWER); 1348 } 1349 return true; 1350 } 1351 1352 private void napInternal(long eventTime, int uid) { 1353 synchronized (mLock) { 1354 if (napNoUpdateLocked(eventTime, uid)) { 1355 updatePowerStateLocked(); 1356 } 1357 } 1358 } 1359 1360 private boolean napNoUpdateLocked(long eventTime, int uid) { 1361 if (DEBUG_SPEW) { 1362 Slog.d(TAG, "napNoUpdateLocked: eventTime=" + eventTime + ", uid=" + uid); 1363 } 1364 1365 if (eventTime < mLastWakeTime || mWakefulness != WAKEFULNESS_AWAKE 1366 || !mBootCompleted || !mSystemReady) { 1367 return false; 1368 } 1369 1370 Trace.traceBegin(Trace.TRACE_TAG_POWER, "nap"); 1371 try { 1372 Slog.i(TAG, "Nap time (uid " + uid +")..."); 1373 1374 mSandmanSummoned = true; 1375 setWakefulnessLocked(WAKEFULNESS_DREAMING, 0); 1376 } finally { 1377 Trace.traceEnd(Trace.TRACE_TAG_POWER); 1378 } 1379 return true; 1380 } 1381 1382 // Done dozing, drop everything and go to sleep. 1383 private boolean reallyGoToSleepNoUpdateLocked(long eventTime, int uid) { 1384 if (DEBUG_SPEW) { 1385 Slog.d(TAG, "reallyGoToSleepNoUpdateLocked: eventTime=" + eventTime 1386 + ", uid=" + uid); 1387 } 1388 1389 if (eventTime < mLastWakeTime || mWakefulness == WAKEFULNESS_ASLEEP 1390 || !mBootCompleted || !mSystemReady) { 1391 return false; 1392 } 1393 1394 Trace.traceBegin(Trace.TRACE_TAG_POWER, "reallyGoToSleep"); 1395 try { 1396 Slog.i(TAG, "Sleeping (uid " + uid +")..."); 1397 1398 setWakefulnessLocked(WAKEFULNESS_ASLEEP, PowerManager.GO_TO_SLEEP_REASON_TIMEOUT); 1399 } finally { 1400 Trace.traceEnd(Trace.TRACE_TAG_POWER); 1401 } 1402 return true; 1403 } 1404 1405 private void setWakefulnessLocked(int wakefulness, int reason) { 1406 if (mWakefulness != wakefulness) { 1407 mWakefulness = wakefulness; 1408 mWakefulnessChanging = true; 1409 mDirty |= DIRTY_WAKEFULNESS; 1410 mNotifier.onWakefulnessChangeStarted(wakefulness, reason); 1411 } 1412 } 1413 1414 /** 1415 * Logs the time the device would have spent awake before user activity timeout, 1416 * had the system not been told the user was inactive. 1417 */ 1418 private void logSleepTimeoutRecapturedLocked() { 1419 final long now = SystemClock.uptimeMillis(); 1420 final long savedWakeTimeMs = mOverriddenTimeout - now; 1421 if (savedWakeTimeMs >= 0) { 1422 EventLog.writeEvent(EventLogTags.POWER_SOFT_SLEEP_REQUESTED, savedWakeTimeMs); 1423 mOverriddenTimeout = -1; 1424 } 1425 } 1426 1427 private void finishWakefulnessChangeIfNeededLocked() { 1428 if (mWakefulnessChanging && mDisplayReady) { 1429 if (mWakefulness == WAKEFULNESS_DOZING 1430 && (mWakeLockSummary & WAKE_LOCK_DOZE) == 0) { 1431 return; // wait until dream has enabled dozing 1432 } 1433 if (mWakefulness == WAKEFULNESS_DOZING || mWakefulness == WAKEFULNESS_ASLEEP) { 1434 logSleepTimeoutRecapturedLocked(); 1435 } 1436 mWakefulnessChanging = false; 1437 mNotifier.onWakefulnessChangeFinished(); 1438 } 1439 } 1440 1441 /** 1442 * Updates the global power state based on dirty bits recorded in mDirty. 1443 * 1444 * This is the main function that performs power state transitions. 1445 * We centralize them here so that we can recompute the power state completely 1446 * each time something important changes, and ensure that we do it the same 1447 * way each time. The point is to gather all of the transition logic here. 1448 */ 1449 private void updatePowerStateLocked() { 1450 if (!mSystemReady || mDirty == 0) { 1451 return; 1452 } 1453 if (!Thread.holdsLock(mLock)) { 1454 Slog.wtf(TAG, "Power manager lock was not held when calling updatePowerStateLocked"); 1455 } 1456 1457 Trace.traceBegin(Trace.TRACE_TAG_POWER, "updatePowerState"); 1458 try { 1459 // Phase 0: Basic state updates. 1460 updateIsPoweredLocked(mDirty); 1461 updateStayOnLocked(mDirty); 1462 updateScreenBrightnessBoostLocked(mDirty); 1463 1464 // Phase 1: Update wakefulness. 1465 // Loop because the wake lock and user activity computations are influenced 1466 // by changes in wakefulness. 1467 final long now = SystemClock.uptimeMillis(); 1468 int dirtyPhase2 = 0; 1469 for (;;) { 1470 int dirtyPhase1 = mDirty; 1471 dirtyPhase2 |= dirtyPhase1; 1472 mDirty = 0; 1473 1474 updateWakeLockSummaryLocked(dirtyPhase1); 1475 updateUserActivitySummaryLocked(now, dirtyPhase1); 1476 if (!updateWakefulnessLocked(dirtyPhase1)) { 1477 break; 1478 } 1479 } 1480 1481 // Phase 2: Update display power state. 1482 boolean displayBecameReady = updateDisplayPowerStateLocked(dirtyPhase2); 1483 1484 // Phase 3: Update dream state (depends on display ready signal). 1485 updateDreamLocked(dirtyPhase2, displayBecameReady); 1486 1487 // Phase 4: Send notifications, if needed. 1488 finishWakefulnessChangeIfNeededLocked(); 1489 1490 // Phase 5: Update suspend blocker. 1491 // Because we might release the last suspend blocker here, we need to make sure 1492 // we finished everything else first! 1493 updateSuspendBlockerLocked(); 1494 } finally { 1495 Trace.traceEnd(Trace.TRACE_TAG_POWER); 1496 } 1497 } 1498 1499 /** 1500 * Updates the value of mIsPowered. 1501 * Sets DIRTY_IS_POWERED if a change occurred. 1502 */ 1503 private void updateIsPoweredLocked(int dirty) { 1504 if ((dirty & DIRTY_BATTERY_STATE) != 0) { 1505 final boolean wasPowered = mIsPowered; 1506 final int oldPlugType = mPlugType; 1507 final boolean oldLevelLow = mBatteryLevelLow; 1508 mIsPowered = mBatteryManagerInternal.isPowered(BatteryManager.BATTERY_PLUGGED_ANY); 1509 mPlugType = mBatteryManagerInternal.getPlugType(); 1510 mBatteryLevel = mBatteryManagerInternal.getBatteryLevel(); 1511 mBatteryLevelLow = mBatteryManagerInternal.getBatteryLevelLow(); 1512 1513 if (DEBUG_SPEW) { 1514 Slog.d(TAG, "updateIsPoweredLocked: wasPowered=" + wasPowered 1515 + ", mIsPowered=" + mIsPowered 1516 + ", oldPlugType=" + oldPlugType 1517 + ", mPlugType=" + mPlugType 1518 + ", mBatteryLevel=" + mBatteryLevel); 1519 } 1520 1521 if (wasPowered != mIsPowered || oldPlugType != mPlugType) { 1522 mDirty |= DIRTY_IS_POWERED; 1523 1524 // Update wireless dock detection state. 1525 final boolean dockedOnWirelessCharger = mWirelessChargerDetector.update( 1526 mIsPowered, mPlugType, mBatteryLevel); 1527 1528 // Treat plugging and unplugging the devices as a user activity. 1529 // Users find it disconcerting when they plug or unplug the device 1530 // and it shuts off right away. 1531 // Some devices also wake the device when plugged or unplugged because 1532 // they don't have a charging LED. 1533 final long now = SystemClock.uptimeMillis(); 1534 if (shouldWakeUpWhenPluggedOrUnpluggedLocked(wasPowered, oldPlugType, 1535 dockedOnWirelessCharger)) { 1536 wakeUpNoUpdateLocked(now, "android.server.power:POWER", Process.SYSTEM_UID, 1537 mContext.getOpPackageName(), Process.SYSTEM_UID); 1538 } 1539 userActivityNoUpdateLocked( 1540 now, PowerManager.USER_ACTIVITY_EVENT_OTHER, 0, Process.SYSTEM_UID); 1541 1542 // Tell the notifier whether wireless charging has started so that 1543 // it can provide feedback to the user. 1544 if (dockedOnWirelessCharger) { 1545 mNotifier.onWirelessChargingStarted(); 1546 } 1547 } 1548 1549 if (wasPowered != mIsPowered || oldLevelLow != mBatteryLevelLow) { 1550 if (oldLevelLow != mBatteryLevelLow && !mBatteryLevelLow) { 1551 if (DEBUG_SPEW) { 1552 Slog.d(TAG, "updateIsPoweredLocked: resetting low power snooze"); 1553 } 1554 mAutoLowPowerModeSnoozing = false; 1555 } 1556 updateLowPowerModeLocked(); 1557 } 1558 } 1559 } 1560 1561 private boolean shouldWakeUpWhenPluggedOrUnpluggedLocked( 1562 boolean wasPowered, int oldPlugType, boolean dockedOnWirelessCharger) { 1563 // Don't wake when powered unless configured to do so. 1564 if (!mWakeUpWhenPluggedOrUnpluggedConfig) { 1565 return false; 1566 } 1567 1568 // Don't wake when undocked from wireless charger. 1569 // See WirelessChargerDetector for justification. 1570 if (wasPowered && !mIsPowered 1571 && oldPlugType == BatteryManager.BATTERY_PLUGGED_WIRELESS) { 1572 return false; 1573 } 1574 1575 // Don't wake when docked on wireless charger unless we are certain of it. 1576 // See WirelessChargerDetector for justification. 1577 if (!wasPowered && mIsPowered 1578 && mPlugType == BatteryManager.BATTERY_PLUGGED_WIRELESS 1579 && !dockedOnWirelessCharger) { 1580 return false; 1581 } 1582 1583 // If already dreaming and becoming powered, then don't wake. 1584 if (mIsPowered && mWakefulness == WAKEFULNESS_DREAMING) { 1585 return false; 1586 } 1587 1588 // Don't wake while theater mode is enabled. 1589 if (mTheaterModeEnabled && !mWakeUpWhenPluggedOrUnpluggedInTheaterModeConfig) { 1590 return false; 1591 } 1592 1593 // Otherwise wake up! 1594 return true; 1595 } 1596 1597 /** 1598 * Updates the value of mStayOn. 1599 * Sets DIRTY_STAY_ON if a change occurred. 1600 */ 1601 private void updateStayOnLocked(int dirty) { 1602 if ((dirty & (DIRTY_BATTERY_STATE | DIRTY_SETTINGS)) != 0) { 1603 final boolean wasStayOn = mStayOn; 1604 if (mStayOnWhilePluggedInSetting != 0 1605 && !isMaximumScreenOffTimeoutFromDeviceAdminEnforcedLocked()) { 1606 mStayOn = mBatteryManagerInternal.isPowered(mStayOnWhilePluggedInSetting); 1607 } else { 1608 mStayOn = false; 1609 } 1610 1611 if (mStayOn != wasStayOn) { 1612 mDirty |= DIRTY_STAY_ON; 1613 } 1614 } 1615 } 1616 1617 /** 1618 * Updates the value of mWakeLockSummary to summarize the state of all active wake locks. 1619 * Note that most wake-locks are ignored when the system is asleep. 1620 * 1621 * This function must have no other side-effects. 1622 */ 1623 @SuppressWarnings("deprecation") 1624 private void updateWakeLockSummaryLocked(int dirty) { 1625 if ((dirty & (DIRTY_WAKE_LOCKS | DIRTY_WAKEFULNESS)) != 0) { 1626 mWakeLockSummary = 0; 1627 1628 final int numWakeLocks = mWakeLocks.size(); 1629 for (int i = 0; i < numWakeLocks; i++) { 1630 final WakeLock wakeLock = mWakeLocks.get(i); 1631 switch (wakeLock.mFlags & PowerManager.WAKE_LOCK_LEVEL_MASK) { 1632 case PowerManager.PARTIAL_WAKE_LOCK: 1633 if (!wakeLock.mDisabled) { 1634 // We only respect this if the wake lock is not disabled. 1635 mWakeLockSummary |= WAKE_LOCK_CPU; 1636 } 1637 break; 1638 case PowerManager.FULL_WAKE_LOCK: 1639 mWakeLockSummary |= WAKE_LOCK_SCREEN_BRIGHT | WAKE_LOCK_BUTTON_BRIGHT; 1640 break; 1641 case PowerManager.SCREEN_BRIGHT_WAKE_LOCK: 1642 mWakeLockSummary |= WAKE_LOCK_SCREEN_BRIGHT; 1643 break; 1644 case PowerManager.SCREEN_DIM_WAKE_LOCK: 1645 mWakeLockSummary |= WAKE_LOCK_SCREEN_DIM; 1646 break; 1647 case PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK: 1648 mWakeLockSummary |= WAKE_LOCK_PROXIMITY_SCREEN_OFF; 1649 break; 1650 case PowerManager.DOZE_WAKE_LOCK: 1651 mWakeLockSummary |= WAKE_LOCK_DOZE; 1652 break; 1653 case PowerManager.DRAW_WAKE_LOCK: 1654 mWakeLockSummary |= WAKE_LOCK_DRAW; 1655 break; 1656 } 1657 } 1658 1659 // Cancel wake locks that make no sense based on the current state. 1660 if (mWakefulness != WAKEFULNESS_DOZING) { 1661 mWakeLockSummary &= ~(WAKE_LOCK_DOZE | WAKE_LOCK_DRAW); 1662 } 1663 if (mWakefulness == WAKEFULNESS_ASLEEP 1664 || (mWakeLockSummary & WAKE_LOCK_DOZE) != 0) { 1665 mWakeLockSummary &= ~(WAKE_LOCK_SCREEN_BRIGHT | WAKE_LOCK_SCREEN_DIM 1666 | WAKE_LOCK_BUTTON_BRIGHT); 1667 if (mWakefulness == WAKEFULNESS_ASLEEP) { 1668 mWakeLockSummary &= ~WAKE_LOCK_PROXIMITY_SCREEN_OFF; 1669 } 1670 } 1671 1672 // Infer implied wake locks where necessary based on the current state. 1673 if ((mWakeLockSummary & (WAKE_LOCK_SCREEN_BRIGHT | WAKE_LOCK_SCREEN_DIM)) != 0) { 1674 if (mWakefulness == WAKEFULNESS_AWAKE) { 1675 mWakeLockSummary |= WAKE_LOCK_CPU | WAKE_LOCK_STAY_AWAKE; 1676 } else if (mWakefulness == WAKEFULNESS_DREAMING) { 1677 mWakeLockSummary |= WAKE_LOCK_CPU; 1678 } 1679 } 1680 if ((mWakeLockSummary & WAKE_LOCK_DRAW) != 0) { 1681 mWakeLockSummary |= WAKE_LOCK_CPU; 1682 } 1683 1684 if (DEBUG_SPEW) { 1685 Slog.d(TAG, "updateWakeLockSummaryLocked: mWakefulness=" 1686 + PowerManagerInternal.wakefulnessToString(mWakefulness) 1687 + ", mWakeLockSummary=0x" + Integer.toHexString(mWakeLockSummary)); 1688 } 1689 } 1690 } 1691 1692 void checkForLongWakeLocks() { 1693 synchronized (mLock) { 1694 final long now = SystemClock.uptimeMillis(); 1695 mNotifyLongDispatched = now; 1696 final long when = now - MIN_LONG_WAKE_CHECK_INTERVAL; 1697 long nextCheckTime = Long.MAX_VALUE; 1698 final int numWakeLocks = mWakeLocks.size(); 1699 for (int i = 0; i < numWakeLocks; i++) { 1700 final WakeLock wakeLock = mWakeLocks.get(i); 1701 if ((wakeLock.mFlags & PowerManager.WAKE_LOCK_LEVEL_MASK) 1702 == PowerManager.PARTIAL_WAKE_LOCK) { 1703 if (wakeLock.mNotifiedAcquired && !wakeLock.mNotifiedLong) { 1704 if (wakeLock.mAcquireTime < when) { 1705 // This wake lock has exceeded the long acquire time, report! 1706 notifyWakeLockLongStartedLocked(wakeLock); 1707 } else { 1708 // This wake lock could still become a long one, at this time. 1709 long checkTime = wakeLock.mAcquireTime + MIN_LONG_WAKE_CHECK_INTERVAL; 1710 if (checkTime < nextCheckTime) { 1711 nextCheckTime = checkTime; 1712 } 1713 } 1714 } 1715 } 1716 } 1717 mNotifyLongScheduled = 0; 1718 mHandler.removeMessages(MSG_CHECK_FOR_LONG_WAKELOCKS); 1719 if (nextCheckTime != Long.MAX_VALUE) { 1720 mNotifyLongNextCheck = nextCheckTime; 1721 enqueueNotifyLongMsgLocked(nextCheckTime); 1722 } else { 1723 mNotifyLongNextCheck = 0; 1724 } 1725 } 1726 } 1727 1728 /** 1729 * Updates the value of mUserActivitySummary to summarize the user requested 1730 * state of the system such as whether the screen should be bright or dim. 1731 * Note that user activity is ignored when the system is asleep. 1732 * 1733 * This function must have no other side-effects. 1734 */ 1735 private void updateUserActivitySummaryLocked(long now, int dirty) { 1736 // Update the status of the user activity timeout timer. 1737 if ((dirty & (DIRTY_WAKE_LOCKS | DIRTY_USER_ACTIVITY 1738 | DIRTY_WAKEFULNESS | DIRTY_SETTINGS)) != 0) { 1739 mHandler.removeMessages(MSG_USER_ACTIVITY_TIMEOUT); 1740 1741 long nextTimeout = 0; 1742 if (mWakefulness == WAKEFULNESS_AWAKE 1743 || mWakefulness == WAKEFULNESS_DREAMING 1744 || mWakefulness == WAKEFULNESS_DOZING) { 1745 final int sleepTimeout = getSleepTimeoutLocked(); 1746 final int screenOffTimeout = getScreenOffTimeoutLocked(sleepTimeout); 1747 final int screenDimDuration = getScreenDimDurationLocked(screenOffTimeout); 1748 final boolean userInactiveOverride = mUserInactiveOverrideFromWindowManager; 1749 1750 mUserActivitySummary = 0; 1751 if (mLastUserActivityTime >= mLastWakeTime) { 1752 nextTimeout = mLastUserActivityTime 1753 + screenOffTimeout - screenDimDuration; 1754 if (now < nextTimeout) { 1755 mUserActivitySummary = USER_ACTIVITY_SCREEN_BRIGHT; 1756 } else { 1757 nextTimeout = mLastUserActivityTime + screenOffTimeout; 1758 if (now < nextTimeout) { 1759 mUserActivitySummary = USER_ACTIVITY_SCREEN_DIM; 1760 } 1761 } 1762 } 1763 if (mUserActivitySummary == 0 1764 && mLastUserActivityTimeNoChangeLights >= mLastWakeTime) { 1765 nextTimeout = mLastUserActivityTimeNoChangeLights + screenOffTimeout; 1766 if (now < nextTimeout) { 1767 if (mDisplayPowerRequest.policy == DisplayPowerRequest.POLICY_BRIGHT) { 1768 mUserActivitySummary = USER_ACTIVITY_SCREEN_BRIGHT; 1769 } else if (mDisplayPowerRequest.policy == DisplayPowerRequest.POLICY_DIM) { 1770 mUserActivitySummary = USER_ACTIVITY_SCREEN_DIM; 1771 } 1772 } 1773 } 1774 1775 if (mUserActivitySummary == 0) { 1776 if (sleepTimeout >= 0) { 1777 final long anyUserActivity = Math.max(mLastUserActivityTime, 1778 mLastUserActivityTimeNoChangeLights); 1779 if (anyUserActivity >= mLastWakeTime) { 1780 nextTimeout = anyUserActivity + sleepTimeout; 1781 if (now < nextTimeout) { 1782 mUserActivitySummary = USER_ACTIVITY_SCREEN_DREAM; 1783 } 1784 } 1785 } else { 1786 mUserActivitySummary = USER_ACTIVITY_SCREEN_DREAM; 1787 nextTimeout = -1; 1788 } 1789 } 1790 1791 if (mUserActivitySummary != USER_ACTIVITY_SCREEN_DREAM && userInactiveOverride) { 1792 if ((mUserActivitySummary & 1793 (USER_ACTIVITY_SCREEN_BRIGHT | USER_ACTIVITY_SCREEN_DIM)) != 0) { 1794 // Device is being kept awake by recent user activity 1795 if (nextTimeout >= now && mOverriddenTimeout == -1) { 1796 // Save when the next timeout would have occurred 1797 mOverriddenTimeout = nextTimeout; 1798 } 1799 } 1800 mUserActivitySummary = USER_ACTIVITY_SCREEN_DREAM; 1801 nextTimeout = -1; 1802 } 1803 1804 if (mUserActivitySummary != 0 && nextTimeout >= 0) { 1805 Message msg = mHandler.obtainMessage(MSG_USER_ACTIVITY_TIMEOUT); 1806 msg.setAsynchronous(true); 1807 mHandler.sendMessageAtTime(msg, nextTimeout); 1808 } 1809 } else { 1810 mUserActivitySummary = 0; 1811 } 1812 1813 if (DEBUG_SPEW) { 1814 Slog.d(TAG, "updateUserActivitySummaryLocked: mWakefulness=" 1815 + PowerManagerInternal.wakefulnessToString(mWakefulness) 1816 + ", mUserActivitySummary=0x" + Integer.toHexString(mUserActivitySummary) 1817 + ", nextTimeout=" + TimeUtils.formatUptime(nextTimeout)); 1818 } 1819 } 1820 } 1821 1822 /** 1823 * Called when a user activity timeout has occurred. 1824 * Simply indicates that something about user activity has changed so that the new 1825 * state can be recomputed when the power state is updated. 1826 * 1827 * This function must have no other side-effects besides setting the dirty 1828 * bit and calling update power state. Wakefulness transitions are handled elsewhere. 1829 */ 1830 private void handleUserActivityTimeout() { // runs on handler thread 1831 synchronized (mLock) { 1832 if (DEBUG_SPEW) { 1833 Slog.d(TAG, "handleUserActivityTimeout"); 1834 } 1835 1836 mDirty |= DIRTY_USER_ACTIVITY; 1837 updatePowerStateLocked(); 1838 } 1839 } 1840 1841 private int getSleepTimeoutLocked() { 1842 int timeout = mSleepTimeoutSetting; 1843 if (timeout <= 0) { 1844 return -1; 1845 } 1846 return Math.max(timeout, mMinimumScreenOffTimeoutConfig); 1847 } 1848 1849 private int getScreenOffTimeoutLocked(int sleepTimeout) { 1850 int timeout = mScreenOffTimeoutSetting; 1851 if (isMaximumScreenOffTimeoutFromDeviceAdminEnforcedLocked()) { 1852 timeout = Math.min(timeout, mMaximumScreenOffTimeoutFromDeviceAdmin); 1853 } 1854 if (mUserActivityTimeoutOverrideFromWindowManager >= 0) { 1855 timeout = (int)Math.min(timeout, mUserActivityTimeoutOverrideFromWindowManager); 1856 } 1857 if (sleepTimeout >= 0) { 1858 timeout = Math.min(timeout, sleepTimeout); 1859 } 1860 return Math.max(timeout, mMinimumScreenOffTimeoutConfig); 1861 } 1862 1863 private int getScreenDimDurationLocked(int screenOffTimeout) { 1864 return Math.min(mMaximumScreenDimDurationConfig, 1865 (int)(screenOffTimeout * mMaximumScreenDimRatioConfig)); 1866 } 1867 1868 /** 1869 * Updates the wakefulness of the device. 1870 * 1871 * This is the function that decides whether the device should start dreaming 1872 * based on the current wake locks and user activity state. It may modify mDirty 1873 * if the wakefulness changes. 1874 * 1875 * Returns true if the wakefulness changed and we need to restart power state calculation. 1876 */ 1877 private boolean updateWakefulnessLocked(int dirty) { 1878 boolean changed = false; 1879 if ((dirty & (DIRTY_WAKE_LOCKS | DIRTY_USER_ACTIVITY | DIRTY_BOOT_COMPLETED 1880 | DIRTY_WAKEFULNESS | DIRTY_STAY_ON | DIRTY_PROXIMITY_POSITIVE 1881 | DIRTY_DOCK_STATE)) != 0) { 1882 if (mWakefulness == WAKEFULNESS_AWAKE && isItBedTimeYetLocked()) { 1883 if (DEBUG_SPEW) { 1884 Slog.d(TAG, "updateWakefulnessLocked: Bed time..."); 1885 } 1886 final long time = SystemClock.uptimeMillis(); 1887 if (shouldNapAtBedTimeLocked()) { 1888 changed = napNoUpdateLocked(time, Process.SYSTEM_UID); 1889 } else { 1890 changed = goToSleepNoUpdateLocked(time, 1891 PowerManager.GO_TO_SLEEP_REASON_TIMEOUT, 0, Process.SYSTEM_UID); 1892 } 1893 } 1894 } 1895 return changed; 1896 } 1897 1898 /** 1899 * Returns true if the device should automatically nap and start dreaming when the user 1900 * activity timeout has expired and it's bedtime. 1901 */ 1902 private boolean shouldNapAtBedTimeLocked() { 1903 return mDreamsActivateOnSleepSetting 1904 || (mDreamsActivateOnDockSetting 1905 && mDockState != Intent.EXTRA_DOCK_STATE_UNDOCKED); 1906 } 1907 1908 /** 1909 * Returns true if the device should go to sleep now. 1910 * Also used when exiting a dream to determine whether we should go back 1911 * to being fully awake or else go to sleep for good. 1912 */ 1913 private boolean isItBedTimeYetLocked() { 1914 return mBootCompleted && !isBeingKeptAwakeLocked(); 1915 } 1916 1917 /** 1918 * Returns true if the device is being kept awake by a wake lock, user activity 1919 * or the stay on while powered setting. We also keep the phone awake when 1920 * the proximity sensor returns a positive result so that the device does not 1921 * lock while in a phone call. This function only controls whether the device 1922 * will go to sleep or dream which is independent of whether it will be allowed 1923 * to suspend. 1924 */ 1925 private boolean isBeingKeptAwakeLocked() { 1926 return mStayOn 1927 || mProximityPositive 1928 || (mWakeLockSummary & WAKE_LOCK_STAY_AWAKE) != 0 1929 || (mUserActivitySummary & (USER_ACTIVITY_SCREEN_BRIGHT 1930 | USER_ACTIVITY_SCREEN_DIM)) != 0 1931 || mScreenBrightnessBoostInProgress; 1932 } 1933 1934 /** 1935 * Determines whether to post a message to the sandman to update the dream state. 1936 */ 1937 private void updateDreamLocked(int dirty, boolean displayBecameReady) { 1938 if ((dirty & (DIRTY_WAKEFULNESS 1939 | DIRTY_USER_ACTIVITY 1940 | DIRTY_WAKE_LOCKS 1941 | DIRTY_BOOT_COMPLETED 1942 | DIRTY_SETTINGS 1943 | DIRTY_IS_POWERED 1944 | DIRTY_STAY_ON 1945 | DIRTY_PROXIMITY_POSITIVE 1946 | DIRTY_BATTERY_STATE)) != 0 || displayBecameReady) { 1947 if (mDisplayReady) { 1948 scheduleSandmanLocked(); 1949 } 1950 } 1951 } 1952 1953 private void scheduleSandmanLocked() { 1954 if (!mSandmanScheduled) { 1955 mSandmanScheduled = true; 1956 Message msg = mHandler.obtainMessage(MSG_SANDMAN); 1957 msg.setAsynchronous(true); 1958 mHandler.sendMessage(msg); 1959 } 1960 } 1961 1962 /** 1963 * Called when the device enters or exits a dreaming or dozing state. 1964 * 1965 * We do this asynchronously because we must call out of the power manager to start 1966 * the dream and we don't want to hold our lock while doing so. There is a risk that 1967 * the device will wake or go to sleep in the meantime so we have to handle that case. 1968 */ 1969 private void handleSandman() { // runs on handler thread 1970 // Handle preconditions. 1971 final boolean startDreaming; 1972 final int wakefulness; 1973 synchronized (mLock) { 1974 mSandmanScheduled = false; 1975 wakefulness = mWakefulness; 1976 if (mSandmanSummoned && mDisplayReady) { 1977 startDreaming = canDreamLocked() || canDozeLocked(); 1978 mSandmanSummoned = false; 1979 } else { 1980 startDreaming = false; 1981 } 1982 } 1983 1984 // Start dreaming if needed. 1985 // We only control the dream on the handler thread, so we don't need to worry about 1986 // concurrent attempts to start or stop the dream. 1987 final boolean isDreaming; 1988 if (mDreamManager != null) { 1989 // Restart the dream whenever the sandman is summoned. 1990 if (startDreaming) { 1991 mDreamManager.stopDream(false /*immediate*/); 1992 mDreamManager.startDream(wakefulness == WAKEFULNESS_DOZING); 1993 } 1994 isDreaming = mDreamManager.isDreaming(); 1995 } else { 1996 isDreaming = false; 1997 } 1998 1999 // Update dream state. 2000 synchronized (mLock) { 2001 // Remember the initial battery level when the dream started. 2002 if (startDreaming && isDreaming) { 2003 mBatteryLevelWhenDreamStarted = mBatteryLevel; 2004 if (wakefulness == WAKEFULNESS_DOZING) { 2005 Slog.i(TAG, "Dozing..."); 2006 } else { 2007 Slog.i(TAG, "Dreaming..."); 2008 } 2009 } 2010 2011 // If preconditions changed, wait for the next iteration to determine 2012 // whether the dream should continue (or be restarted). 2013 if (mSandmanSummoned || mWakefulness != wakefulness) { 2014 return; // wait for next cycle 2015 } 2016 2017 // Determine whether the dream should continue. 2018 if (wakefulness == WAKEFULNESS_DREAMING) { 2019 if (isDreaming && canDreamLocked()) { 2020 if (mDreamsBatteryLevelDrainCutoffConfig >= 0 2021 && mBatteryLevel < mBatteryLevelWhenDreamStarted 2022 - mDreamsBatteryLevelDrainCutoffConfig 2023 && !isBeingKeptAwakeLocked()) { 2024 // If the user activity timeout expired and the battery appears 2025 // to be draining faster than it is charging then stop dreaming 2026 // and go to sleep. 2027 Slog.i(TAG, "Stopping dream because the battery appears to " 2028 + "be draining faster than it is charging. " 2029 + "Battery level when dream started: " 2030 + mBatteryLevelWhenDreamStarted + "%. " 2031 + "Battery level now: " + mBatteryLevel + "%."); 2032 } else { 2033 return; // continue dreaming 2034 } 2035 } 2036 2037 // Dream has ended or will be stopped. Update the power state. 2038 if (isItBedTimeYetLocked()) { 2039 goToSleepNoUpdateLocked(SystemClock.uptimeMillis(), 2040 PowerManager.GO_TO_SLEEP_REASON_TIMEOUT, 0, Process.SYSTEM_UID); 2041 updatePowerStateLocked(); 2042 } else { 2043 wakeUpNoUpdateLocked(SystemClock.uptimeMillis(), "android.server.power:DREAM", 2044 Process.SYSTEM_UID, mContext.getOpPackageName(), Process.SYSTEM_UID); 2045 updatePowerStateLocked(); 2046 } 2047 } else if (wakefulness == WAKEFULNESS_DOZING) { 2048 if (isDreaming) { 2049 return; // continue dozing 2050 } 2051 2052 // Doze has ended or will be stopped. Update the power state. 2053 reallyGoToSleepNoUpdateLocked(SystemClock.uptimeMillis(), Process.SYSTEM_UID); 2054 updatePowerStateLocked(); 2055 } 2056 } 2057 2058 // Stop dream. 2059 if (isDreaming) { 2060 mDreamManager.stopDream(false /*immediate*/); 2061 } 2062 } 2063 2064 /** 2065 * Returns true if the device is allowed to dream in its current state. 2066 */ 2067 private boolean canDreamLocked() { 2068 if (mWakefulness != WAKEFULNESS_DREAMING 2069 || !mDreamsSupportedConfig 2070 || !mDreamsEnabledSetting 2071 || !mDisplayPowerRequest.isBrightOrDim() 2072 || (mUserActivitySummary & (USER_ACTIVITY_SCREEN_BRIGHT 2073 | USER_ACTIVITY_SCREEN_DIM | USER_ACTIVITY_SCREEN_DREAM)) == 0 2074 || !mBootCompleted) { 2075 return false; 2076 } 2077 if (!isBeingKeptAwakeLocked()) { 2078 if (!mIsPowered && !mDreamsEnabledOnBatteryConfig) { 2079 return false; 2080 } 2081 if (!mIsPowered 2082 && mDreamsBatteryLevelMinimumWhenNotPoweredConfig >= 0 2083 && mBatteryLevel < mDreamsBatteryLevelMinimumWhenNotPoweredConfig) { 2084 return false; 2085 } 2086 if (mIsPowered 2087 && mDreamsBatteryLevelMinimumWhenPoweredConfig >= 0 2088 && mBatteryLevel < mDreamsBatteryLevelMinimumWhenPoweredConfig) { 2089 return false; 2090 } 2091 } 2092 return true; 2093 } 2094 2095 /** 2096 * Returns true if the device is allowed to doze in its current state. 2097 */ 2098 private boolean canDozeLocked() { 2099 return mWakefulness == WAKEFULNESS_DOZING; 2100 } 2101 2102 /** 2103 * Updates the display power state asynchronously. 2104 * When the update is finished, mDisplayReady will be set to true. The display 2105 * controller posts a message to tell us when the actual display power state 2106 * has been updated so we come back here to double-check and finish up. 2107 * 2108 * This function recalculates the display power state each time. 2109 * 2110 * @return True if the display became ready. 2111 */ 2112 private boolean updateDisplayPowerStateLocked(int dirty) { 2113 final boolean oldDisplayReady = mDisplayReady; 2114 if ((dirty & (DIRTY_WAKE_LOCKS | DIRTY_USER_ACTIVITY | DIRTY_WAKEFULNESS 2115 | DIRTY_ACTUAL_DISPLAY_POWER_STATE_UPDATED | DIRTY_BOOT_COMPLETED 2116 | DIRTY_SETTINGS | DIRTY_SCREEN_BRIGHTNESS_BOOST | DIRTY_QUIESCENT)) != 0) { 2117 mDisplayPowerRequest.policy = getDesiredScreenPolicyLocked(); 2118 2119 // Determine appropriate screen brightness and auto-brightness adjustments. 2120 boolean brightnessSetByUser = true; 2121 int screenBrightness = mScreenBrightnessSettingDefault; 2122 float screenAutoBrightnessAdjustment = 0.0f; 2123 boolean autoBrightness = (mScreenBrightnessModeSetting == 2124 Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC); 2125 if (!mBootCompleted) { 2126 // Keep the brightness steady during boot. This requires the 2127 // bootloader brightness and the default brightness to be identical. 2128 autoBrightness = false; 2129 brightnessSetByUser = false; 2130 } else if (isValidBrightness(mScreenBrightnessOverrideFromWindowManager)) { 2131 screenBrightness = mScreenBrightnessOverrideFromWindowManager; 2132 autoBrightness = false; 2133 brightnessSetByUser = false; 2134 } else if (isValidBrightness(mTemporaryScreenBrightnessSettingOverride)) { 2135 screenBrightness = mTemporaryScreenBrightnessSettingOverride; 2136 } else if (isValidBrightness(mScreenBrightnessSetting)) { 2137 screenBrightness = mScreenBrightnessSetting; 2138 } 2139 if (autoBrightness) { 2140 screenBrightness = mScreenBrightnessSettingDefault; 2141 if (isValidAutoBrightnessAdjustment( 2142 mTemporaryScreenAutoBrightnessAdjustmentSettingOverride)) { 2143 screenAutoBrightnessAdjustment = 2144 mTemporaryScreenAutoBrightnessAdjustmentSettingOverride; 2145 } else if (isValidAutoBrightnessAdjustment( 2146 mScreenAutoBrightnessAdjustmentSetting)) { 2147 screenAutoBrightnessAdjustment = mScreenAutoBrightnessAdjustmentSetting; 2148 } 2149 } 2150 screenBrightness = Math.max(Math.min(screenBrightness, 2151 mScreenBrightnessSettingMaximum), mScreenBrightnessSettingMinimum); 2152 screenAutoBrightnessAdjustment = Math.max(Math.min( 2153 screenAutoBrightnessAdjustment, 1.0f), -1.0f); 2154 2155 // Update display power request. 2156 mDisplayPowerRequest.screenBrightness = screenBrightness; 2157 mDisplayPowerRequest.screenAutoBrightnessAdjustment = 2158 screenAutoBrightnessAdjustment; 2159 mDisplayPowerRequest.brightnessSetByUser = brightnessSetByUser; 2160 mDisplayPowerRequest.useAutoBrightness = autoBrightness; 2161 mDisplayPowerRequest.useProximitySensor = shouldUseProximitySensorLocked(); 2162 mDisplayPowerRequest.lowPowerMode = mLowPowerModeEnabled; 2163 mDisplayPowerRequest.boostScreenBrightness = mScreenBrightnessBoostInProgress; 2164 mDisplayPowerRequest.useTwilight = mBrightnessUseTwilight; 2165 2166 if (mDisplayPowerRequest.policy == DisplayPowerRequest.POLICY_DOZE) { 2167 mDisplayPowerRequest.dozeScreenState = mDozeScreenStateOverrideFromDreamManager; 2168 if (mDisplayPowerRequest.dozeScreenState == Display.STATE_DOZE_SUSPEND 2169 && (mWakeLockSummary & WAKE_LOCK_DRAW) != 0) { 2170 mDisplayPowerRequest.dozeScreenState = Display.STATE_DOZE; 2171 } 2172 mDisplayPowerRequest.dozeScreenBrightness = 2173 mDozeScreenBrightnessOverrideFromDreamManager; 2174 } else { 2175 mDisplayPowerRequest.dozeScreenState = Display.STATE_UNKNOWN; 2176 mDisplayPowerRequest.dozeScreenBrightness = PowerManager.BRIGHTNESS_DEFAULT; 2177 } 2178 2179 mDisplayReady = mDisplayManagerInternal.requestPowerState(mDisplayPowerRequest, 2180 mRequestWaitForNegativeProximity); 2181 mRequestWaitForNegativeProximity = false; 2182 2183 if ((dirty & DIRTY_QUIESCENT) != 0) { 2184 sQuiescent = false; 2185 } 2186 if (DEBUG_SPEW) { 2187 Slog.d(TAG, "updateDisplayPowerStateLocked: mDisplayReady=" + mDisplayReady 2188 + ", policy=" + mDisplayPowerRequest.policy 2189 + ", mWakefulness=" + mWakefulness 2190 + ", mWakeLockSummary=0x" + Integer.toHexString(mWakeLockSummary) 2191 + ", mUserActivitySummary=0x" + Integer.toHexString(mUserActivitySummary) 2192 + ", mBootCompleted=" + mBootCompleted 2193 + ", mScreenBrightnessBoostInProgress=" + mScreenBrightnessBoostInProgress 2194 + ", sQuiescent=" + sQuiescent); 2195 } 2196 } 2197 return mDisplayReady && !oldDisplayReady; 2198 } 2199 2200 private void updateScreenBrightnessBoostLocked(int dirty) { 2201 if ((dirty & DIRTY_SCREEN_BRIGHTNESS_BOOST) != 0) { 2202 if (mScreenBrightnessBoostInProgress) { 2203 final long now = SystemClock.uptimeMillis(); 2204 mHandler.removeMessages(MSG_SCREEN_BRIGHTNESS_BOOST_TIMEOUT); 2205 if (mLastScreenBrightnessBoostTime > mLastSleepTime) { 2206 final long boostTimeout = mLastScreenBrightnessBoostTime + 2207 SCREEN_BRIGHTNESS_BOOST_TIMEOUT; 2208 if (boostTimeout > now) { 2209 Message msg = mHandler.obtainMessage(MSG_SCREEN_BRIGHTNESS_BOOST_TIMEOUT); 2210 msg.setAsynchronous(true); 2211 mHandler.sendMessageAtTime(msg, boostTimeout); 2212 return; 2213 } 2214 } 2215 mScreenBrightnessBoostInProgress = false; 2216 mNotifier.onScreenBrightnessBoostChanged(); 2217 userActivityNoUpdateLocked(now, 2218 PowerManager.USER_ACTIVITY_EVENT_OTHER, 0, Process.SYSTEM_UID); 2219 } 2220 } 2221 } 2222 2223 private static boolean isValidBrightness(int value) { 2224 return value >= 0 && value <= 255; 2225 } 2226 2227 private static boolean isValidAutoBrightnessAdjustment(float value) { 2228 // Handles NaN by always returning false. 2229 return value >= -1.0f && value <= 1.0f; 2230 } 2231 2232 private int getDesiredScreenPolicyLocked() { 2233 if (mWakefulness == WAKEFULNESS_ASLEEP || sQuiescent) { 2234 return DisplayPowerRequest.POLICY_OFF; 2235 } 2236 2237 if (mWakefulness == WAKEFULNESS_DOZING) { 2238 if ((mWakeLockSummary & WAKE_LOCK_DOZE) != 0) { 2239 return DisplayPowerRequest.POLICY_DOZE; 2240 } 2241 if (mDozeAfterScreenOffConfig) { 2242 return DisplayPowerRequest.POLICY_OFF; 2243 } 2244 // Fall through and preserve the current screen policy if not configured to 2245 // doze after screen off. This causes the screen off transition to be skipped. 2246 } 2247 2248 if ((mWakeLockSummary & WAKE_LOCK_SCREEN_BRIGHT) != 0 2249 || (mUserActivitySummary & USER_ACTIVITY_SCREEN_BRIGHT) != 0 2250 || !mBootCompleted 2251 || mScreenBrightnessBoostInProgress) { 2252 return DisplayPowerRequest.POLICY_BRIGHT; 2253 } 2254 2255 return DisplayPowerRequest.POLICY_DIM; 2256 } 2257 2258 private final DisplayManagerInternal.DisplayPowerCallbacks mDisplayPowerCallbacks = 2259 new DisplayManagerInternal.DisplayPowerCallbacks() { 2260 private int mDisplayState = Display.STATE_UNKNOWN; 2261 2262 @Override 2263 public void onStateChanged() { 2264 synchronized (mLock) { 2265 mDirty |= DIRTY_ACTUAL_DISPLAY_POWER_STATE_UPDATED; 2266 updatePowerStateLocked(); 2267 } 2268 } 2269 2270 @Override 2271 public void onProximityPositive() { 2272 synchronized (mLock) { 2273 mProximityPositive = true; 2274 mDirty |= DIRTY_PROXIMITY_POSITIVE; 2275 updatePowerStateLocked(); 2276 } 2277 } 2278 2279 @Override 2280 public void onProximityNegative() { 2281 synchronized (mLock) { 2282 mProximityPositive = false; 2283 mDirty |= DIRTY_PROXIMITY_POSITIVE; 2284 userActivityNoUpdateLocked(SystemClock.uptimeMillis(), 2285 PowerManager.USER_ACTIVITY_EVENT_OTHER, 0, Process.SYSTEM_UID); 2286 updatePowerStateLocked(); 2287 } 2288 } 2289 2290 @Override 2291 public void onDisplayStateChange(int state) { 2292 // This method is only needed to support legacy display blanking behavior 2293 // where the display's power state is coupled to suspend or to the power HAL. 2294 // The order of operations matters here. 2295 synchronized (mLock) { 2296 if (mDisplayState != state) { 2297 mDisplayState = state; 2298 if (state == Display.STATE_OFF) { 2299 if (!mDecoupleHalInteractiveModeFromDisplayConfig) { 2300 setHalInteractiveModeLocked(false); 2301 } 2302 if (!mDecoupleHalAutoSuspendModeFromDisplayConfig) { 2303 setHalAutoSuspendModeLocked(true); 2304 } 2305 } else { 2306 if (!mDecoupleHalAutoSuspendModeFromDisplayConfig) { 2307 setHalAutoSuspendModeLocked(false); 2308 } 2309 if (!mDecoupleHalInteractiveModeFromDisplayConfig) { 2310 setHalInteractiveModeLocked(true); 2311 } 2312 } 2313 } 2314 } 2315 } 2316 2317 @Override 2318 public void acquireSuspendBlocker() { 2319 mDisplaySuspendBlocker.acquire(); 2320 } 2321 2322 @Override 2323 public void releaseSuspendBlocker() { 2324 mDisplaySuspendBlocker.release(); 2325 } 2326 2327 @Override 2328 public String toString() { 2329 synchronized (this) { 2330 return "state=" + Display.stateToString(mDisplayState); 2331 } 2332 } 2333 }; 2334 2335 private boolean shouldUseProximitySensorLocked() { 2336 return (mWakeLockSummary & WAKE_LOCK_PROXIMITY_SCREEN_OFF) != 0; 2337 } 2338 2339 /** 2340 * Updates the suspend blocker that keeps the CPU alive. 2341 * 2342 * This function must have no other side-effects. 2343 */ 2344 private void updateSuspendBlockerLocked() { 2345 final boolean needWakeLockSuspendBlocker = ((mWakeLockSummary & WAKE_LOCK_CPU) != 0); 2346 final boolean needDisplaySuspendBlocker = needDisplaySuspendBlockerLocked(); 2347 final boolean autoSuspend = !needDisplaySuspendBlocker; 2348 final boolean interactive = mDisplayPowerRequest.isBrightOrDim(); 2349 2350 // Disable auto-suspend if needed. 2351 // FIXME We should consider just leaving auto-suspend enabled forever since 2352 // we already hold the necessary wakelocks. 2353 if (!autoSuspend && mDecoupleHalAutoSuspendModeFromDisplayConfig) { 2354 setHalAutoSuspendModeLocked(false); 2355 } 2356 2357 // First acquire suspend blockers if needed. 2358 if (needWakeLockSuspendBlocker && !mHoldingWakeLockSuspendBlocker) { 2359 mWakeLockSuspendBlocker.acquire(); 2360 mHoldingWakeLockSuspendBlocker = true; 2361 } 2362 if (needDisplaySuspendBlocker && !mHoldingDisplaySuspendBlocker) { 2363 mDisplaySuspendBlocker.acquire(); 2364 mHoldingDisplaySuspendBlocker = true; 2365 } 2366 2367 // Inform the power HAL about interactive mode. 2368 // Although we could set interactive strictly based on the wakefulness 2369 // as reported by isInteractive(), it is actually more desirable to track 2370 // the display policy state instead so that the interactive state observed 2371 // by the HAL more accurately tracks transitions between AWAKE and DOZING. 2372 // Refer to getDesiredScreenPolicyLocked() for details. 2373 if (mDecoupleHalInteractiveModeFromDisplayConfig) { 2374 // When becoming non-interactive, we want to defer sending this signal 2375 // until the display is actually ready so that all transitions have 2376 // completed. This is probably a good sign that things have gotten 2377 // too tangled over here... 2378 if (interactive || mDisplayReady) { 2379 setHalInteractiveModeLocked(interactive); 2380 } 2381 } 2382 2383 // Then release suspend blockers if needed. 2384 if (!needWakeLockSuspendBlocker && mHoldingWakeLockSuspendBlocker) { 2385 mWakeLockSuspendBlocker.release(); 2386 mHoldingWakeLockSuspendBlocker = false; 2387 } 2388 if (!needDisplaySuspendBlocker && mHoldingDisplaySuspendBlocker) { 2389 mDisplaySuspendBlocker.release(); 2390 mHoldingDisplaySuspendBlocker = false; 2391 } 2392 2393 // Enable auto-suspend if needed. 2394 if (autoSuspend && mDecoupleHalAutoSuspendModeFromDisplayConfig) { 2395 setHalAutoSuspendModeLocked(true); 2396 } 2397 } 2398 2399 /** 2400 * Return true if we must keep a suspend blocker active on behalf of the display. 2401 * We do so if the screen is on or is in transition between states. 2402 */ 2403 private boolean needDisplaySuspendBlockerLocked() { 2404 if (!mDisplayReady) { 2405 return true; 2406 } 2407 if (mDisplayPowerRequest.isBrightOrDim()) { 2408 // If we asked for the screen to be on but it is off due to the proximity 2409 // sensor then we may suspend but only if the configuration allows it. 2410 // On some hardware it may not be safe to suspend because the proximity 2411 // sensor may not be correctly configured as a wake-up source. 2412 if (!mDisplayPowerRequest.useProximitySensor || !mProximityPositive 2413 || !mSuspendWhenScreenOffDueToProximityConfig) { 2414 return true; 2415 } 2416 } 2417 if (mScreenBrightnessBoostInProgress) { 2418 return true; 2419 } 2420 // Let the system suspend if the screen is off or dozing. 2421 return false; 2422 } 2423 2424 private void setHalAutoSuspendModeLocked(boolean enable) { 2425 if (enable != mHalAutoSuspendModeEnabled) { 2426 if (DEBUG) { 2427 Slog.d(TAG, "Setting HAL auto-suspend mode to " + enable); 2428 } 2429 mHalAutoSuspendModeEnabled = enable; 2430 Trace.traceBegin(Trace.TRACE_TAG_POWER, "setHalAutoSuspend(" + enable + ")"); 2431 try { 2432 nativeSetAutoSuspend(enable); 2433 } finally { 2434 Trace.traceEnd(Trace.TRACE_TAG_POWER); 2435 } 2436 } 2437 } 2438 2439 private void setHalInteractiveModeLocked(boolean enable) { 2440 if (enable != mHalInteractiveModeEnabled) { 2441 if (DEBUG) { 2442 Slog.d(TAG, "Setting HAL interactive mode to " + enable); 2443 } 2444 mHalInteractiveModeEnabled = enable; 2445 Trace.traceBegin(Trace.TRACE_TAG_POWER, "setHalInteractive(" + enable + ")"); 2446 try { 2447 nativeSetInteractive(enable); 2448 } finally { 2449 Trace.traceEnd(Trace.TRACE_TAG_POWER); 2450 } 2451 } 2452 } 2453 2454 private boolean isInteractiveInternal() { 2455 synchronized (mLock) { 2456 return PowerManagerInternal.isInteractive(mWakefulness); 2457 } 2458 } 2459 2460 private boolean isLowPowerModeInternal() { 2461 synchronized (mLock) { 2462 return mLowPowerModeEnabled; 2463 } 2464 } 2465 2466 private boolean setLowPowerModeInternal(boolean mode) { 2467 synchronized (mLock) { 2468 if (DEBUG) Slog.d(TAG, "setLowPowerModeInternal " + mode + " mIsPowered=" + mIsPowered); 2469 if (mIsPowered) { 2470 return false; 2471 } 2472 Settings.Global.putInt(mContext.getContentResolver(), 2473 Settings.Global.LOW_POWER_MODE, mode ? 1 : 0); 2474 mLowPowerModeSetting = mode; 2475 2476 if (mAutoLowPowerModeConfigured && mBatteryLevelLow) { 2477 if (mode && mAutoLowPowerModeSnoozing) { 2478 if (DEBUG_SPEW) { 2479 Slog.d(TAG, "setLowPowerModeInternal: clearing low power mode snooze"); 2480 } 2481 mAutoLowPowerModeSnoozing = false; 2482 } else if (!mode && !mAutoLowPowerModeSnoozing) { 2483 if (DEBUG_SPEW) { 2484 Slog.d(TAG, "setLowPowerModeInternal: snoozing low power mode"); 2485 } 2486 mAutoLowPowerModeSnoozing = true; 2487 } 2488 } 2489 2490 updateLowPowerModeLocked(); 2491 return true; 2492 } 2493 } 2494 2495 boolean isDeviceIdleModeInternal() { 2496 synchronized (mLock) { 2497 return mDeviceIdleMode; 2498 } 2499 } 2500 2501 boolean isLightDeviceIdleModeInternal() { 2502 synchronized (mLock) { 2503 return mLightDeviceIdleMode; 2504 } 2505 } 2506 2507 private void handleBatteryStateChangedLocked() { 2508 mDirty |= DIRTY_BATTERY_STATE; 2509 updatePowerStateLocked(); 2510 } 2511 2512 private void shutdownOrRebootInternal(final @HaltMode int haltMode, final boolean confirm, 2513 final String reason, boolean wait) { 2514 if (mHandler == null || !mSystemReady) { 2515 throw new IllegalStateException("Too early to call shutdown() or reboot()"); 2516 } 2517 2518 Runnable runnable = new Runnable() { 2519 @Override 2520 public void run() { 2521 synchronized (this) { 2522 if (haltMode == HALT_MODE_REBOOT_SAFE_MODE) { 2523 ShutdownThread.rebootSafeMode(mContext, confirm); 2524 } else if (haltMode == HALT_MODE_REBOOT) { 2525 ShutdownThread.reboot(mContext, reason, confirm); 2526 } else { 2527 ShutdownThread.shutdown(mContext, reason, confirm); 2528 } 2529 } 2530 } 2531 }; 2532 2533 // ShutdownThread must run on a looper capable of displaying the UI. 2534 Message msg = Message.obtain(mHandler, runnable); 2535 msg.setAsynchronous(true); 2536 mHandler.sendMessage(msg); 2537 2538 // PowerManager.reboot() is documented not to return so just wait for the inevitable. 2539 if (wait) { 2540 synchronized (runnable) { 2541 while (true) { 2542 try { 2543 runnable.wait(); 2544 } catch (InterruptedException e) { 2545 } 2546 } 2547 } 2548 } 2549 } 2550 2551 private void crashInternal(final String message) { 2552 Thread t = new Thread("PowerManagerService.crash()") { 2553 @Override 2554 public void run() { 2555 throw new RuntimeException(message); 2556 } 2557 }; 2558 try { 2559 t.start(); 2560 t.join(); 2561 } catch (InterruptedException e) { 2562 Slog.wtf(TAG, e); 2563 } 2564 } 2565 2566 void setStayOnSettingInternal(int val) { 2567 Settings.Global.putInt(mContext.getContentResolver(), 2568 Settings.Global.STAY_ON_WHILE_PLUGGED_IN, val); 2569 } 2570 2571 void setMaximumScreenOffTimeoutFromDeviceAdminInternal(int timeMs) { 2572 synchronized (mLock) { 2573 mMaximumScreenOffTimeoutFromDeviceAdmin = timeMs; 2574 mDirty |= DIRTY_SETTINGS; 2575 updatePowerStateLocked(); 2576 } 2577 } 2578 2579 boolean setDeviceIdleModeInternal(boolean enabled) { 2580 synchronized (mLock) { 2581 if (mDeviceIdleMode == enabled) { 2582 return false; 2583 } 2584 mDeviceIdleMode = enabled; 2585 updateWakeLockDisabledStatesLocked(); 2586 } 2587 if (enabled) { 2588 EventLogTags.writeDeviceIdleOnPhase("power"); 2589 } else { 2590 EventLogTags.writeDeviceIdleOffPhase("power"); 2591 } 2592 return true; 2593 } 2594 2595 boolean setLightDeviceIdleModeInternal(boolean enabled) { 2596 synchronized (mLock) { 2597 if (mLightDeviceIdleMode != enabled) { 2598 mLightDeviceIdleMode = enabled; 2599 return true; 2600 } 2601 return false; 2602 } 2603 } 2604 2605 void setDeviceIdleWhitelistInternal(int[] appids) { 2606 synchronized (mLock) { 2607 mDeviceIdleWhitelist = appids; 2608 if (mDeviceIdleMode) { 2609 updateWakeLockDisabledStatesLocked(); 2610 } 2611 } 2612 } 2613 2614 void setDeviceIdleTempWhitelistInternal(int[] appids) { 2615 synchronized (mLock) { 2616 mDeviceIdleTempWhitelist = appids; 2617 if (mDeviceIdleMode) { 2618 updateWakeLockDisabledStatesLocked(); 2619 } 2620 } 2621 } 2622 2623 void startUidChangesInternal() { 2624 synchronized (mLock) { 2625 mUidsChanging = true; 2626 } 2627 } 2628 2629 void finishUidChangesInternal() { 2630 synchronized (mLock) { 2631 mUidsChanging = false; 2632 if (mUidsChanged) { 2633 updateWakeLockDisabledStatesLocked(); 2634 mUidsChanged = false; 2635 } 2636 } 2637 } 2638 2639 private void handleUidStateChangeLocked() { 2640 if (mUidsChanging) { 2641 mUidsChanged = true; 2642 } else { 2643 updateWakeLockDisabledStatesLocked(); 2644 } 2645 } 2646 2647 void updateUidProcStateInternal(int uid, int procState) { 2648 synchronized (mLock) { 2649 UidState state = mUidState.get(uid); 2650 if (state == null) { 2651 state = new UidState(uid); 2652 mUidState.put(uid, state); 2653 } 2654 final boolean oldShouldAllow = state.mProcState 2655 <= ActivityManager.PROCESS_STATE_RECEIVER; 2656 state.mProcState = procState; 2657 if (state.mNumWakeLocks > 0) { 2658 if (mDeviceIdleMode) { 2659 handleUidStateChangeLocked(); 2660 } else if (!state.mActive && oldShouldAllow != 2661 (procState <= ActivityManager.PROCESS_STATE_RECEIVER)) { 2662 // If this uid is not active, but the process state has changed such 2663 // that we may still want to allow it to hold a wake lock, then take care of it. 2664 handleUidStateChangeLocked(); 2665 } 2666 } 2667 } 2668 } 2669 2670 void uidGoneInternal(int uid) { 2671 synchronized (mLock) { 2672 final int index = mUidState.indexOfKey(uid); 2673 if (index >= 0) { 2674 UidState state = mUidState.valueAt(index); 2675 state.mProcState = ActivityManager.PROCESS_STATE_NONEXISTENT; 2676 state.mActive = false; 2677 mUidState.removeAt(index); 2678 if (mDeviceIdleMode && state.mNumWakeLocks > 0) { 2679 handleUidStateChangeLocked(); 2680 } 2681 } 2682 } 2683 } 2684 2685 void uidActiveInternal(int uid) { 2686 synchronized (mLock) { 2687 UidState state = mUidState.get(uid); 2688 if (state == null) { 2689 state = new UidState(uid); 2690 state.mProcState = ActivityManager.PROCESS_STATE_CACHED_EMPTY; 2691 mUidState.put(uid, state); 2692 } 2693 state.mActive = true; 2694 if (state.mNumWakeLocks > 0) { 2695 handleUidStateChangeLocked(); 2696 } 2697 } 2698 } 2699 2700 void uidIdleInternal(int uid) { 2701 synchronized (mLock) { 2702 UidState state = mUidState.get(uid); 2703 if (state != null) { 2704 state.mActive = false; 2705 if (state.mNumWakeLocks > 0) { 2706 handleUidStateChangeLocked(); 2707 } 2708 } 2709 } 2710 } 2711 2712 private void updateWakeLockDisabledStatesLocked() { 2713 boolean changed = false; 2714 final int numWakeLocks = mWakeLocks.size(); 2715 for (int i = 0; i < numWakeLocks; i++) { 2716 final WakeLock wakeLock = mWakeLocks.get(i); 2717 if ((wakeLock.mFlags & PowerManager.WAKE_LOCK_LEVEL_MASK) 2718 == PowerManager.PARTIAL_WAKE_LOCK) { 2719 if (setWakeLockDisabledStateLocked(wakeLock)) { 2720 changed = true; 2721 if (wakeLock.mDisabled) { 2722 // This wake lock is no longer being respected. 2723 notifyWakeLockReleasedLocked(wakeLock); 2724 } else { 2725 notifyWakeLockAcquiredLocked(wakeLock); 2726 } 2727 } 2728 } 2729 } 2730 if (changed) { 2731 mDirty |= DIRTY_WAKE_LOCKS; 2732 updatePowerStateLocked(); 2733 } 2734 } 2735 2736 private boolean setWakeLockDisabledStateLocked(WakeLock wakeLock) { 2737 if ((wakeLock.mFlags & PowerManager.WAKE_LOCK_LEVEL_MASK) 2738 == PowerManager.PARTIAL_WAKE_LOCK) { 2739 boolean disabled = false; 2740 final int appid = UserHandle.getAppId(wakeLock.mOwnerUid); 2741 if (appid >= Process.FIRST_APPLICATION_UID) { 2742 if (mDeviceIdleMode) { 2743 // If we are in idle mode, we will ignore all partial wake locks that are 2744 // for application uids that are not whitelisted. 2745 final UidState state = wakeLock.mUidState; 2746 if (Arrays.binarySearch(mDeviceIdleWhitelist, appid) < 0 && 2747 Arrays.binarySearch(mDeviceIdleTempWhitelist, appid) < 0 && 2748 state.mProcState != ActivityManager.PROCESS_STATE_NONEXISTENT && 2749 state.mProcState > ActivityManager.PROCESS_STATE_FOREGROUND_SERVICE) { 2750 disabled = true; 2751 } 2752 } else { 2753 disabled = !wakeLock.mUidState.mActive && 2754 wakeLock.mUidState.mProcState 2755 != ActivityManager.PROCESS_STATE_NONEXISTENT && 2756 wakeLock.mUidState.mProcState > ActivityManager.PROCESS_STATE_RECEIVER; 2757 } 2758 } 2759 if (wakeLock.mDisabled != disabled) { 2760 wakeLock.mDisabled = disabled; 2761 return true; 2762 } 2763 } 2764 return false; 2765 } 2766 2767 private boolean isMaximumScreenOffTimeoutFromDeviceAdminEnforcedLocked() { 2768 return mMaximumScreenOffTimeoutFromDeviceAdmin >= 0 2769 && mMaximumScreenOffTimeoutFromDeviceAdmin < Integer.MAX_VALUE; 2770 } 2771 2772 private void setAttentionLightInternal(boolean on, int color) { 2773 Light light; 2774 synchronized (mLock) { 2775 if (!mSystemReady) { 2776 return; 2777 } 2778 light = mAttentionLight; 2779 } 2780 2781 // Control light outside of lock. 2782 light.setFlashing(color, Light.LIGHT_FLASH_HARDWARE, (on ? 3 : 0), 0); 2783 } 2784 2785 private void boostScreenBrightnessInternal(long eventTime, int uid) { 2786 synchronized (mLock) { 2787 if (!mSystemReady || mWakefulness == WAKEFULNESS_ASLEEP 2788 || eventTime < mLastScreenBrightnessBoostTime) { 2789 return; 2790 } 2791 2792 Slog.i(TAG, "Brightness boost activated (uid " + uid +")..."); 2793 mLastScreenBrightnessBoostTime = eventTime; 2794 if (!mScreenBrightnessBoostInProgress) { 2795 mScreenBrightnessBoostInProgress = true; 2796 mNotifier.onScreenBrightnessBoostChanged(); 2797 } 2798 mDirty |= DIRTY_SCREEN_BRIGHTNESS_BOOST; 2799 2800 userActivityNoUpdateLocked(eventTime, 2801 PowerManager.USER_ACTIVITY_EVENT_OTHER, 0, uid); 2802 updatePowerStateLocked(); 2803 } 2804 } 2805 2806 private boolean isScreenBrightnessBoostedInternal() { 2807 synchronized (mLock) { 2808 return mScreenBrightnessBoostInProgress; 2809 } 2810 } 2811 2812 /** 2813 * Called when a screen brightness boost timeout has occurred. 2814 * 2815 * This function must have no other side-effects besides setting the dirty 2816 * bit and calling update power state. 2817 */ 2818 private void handleScreenBrightnessBoostTimeout() { // runs on handler thread 2819 synchronized (mLock) { 2820 if (DEBUG_SPEW) { 2821 Slog.d(TAG, "handleScreenBrightnessBoostTimeout"); 2822 } 2823 2824 mDirty |= DIRTY_SCREEN_BRIGHTNESS_BOOST; 2825 updatePowerStateLocked(); 2826 } 2827 } 2828 2829 private void setScreenBrightnessOverrideFromWindowManagerInternal(int brightness) { 2830 synchronized (mLock) { 2831 if (mScreenBrightnessOverrideFromWindowManager != brightness) { 2832 mScreenBrightnessOverrideFromWindowManager = brightness; 2833 mDirty |= DIRTY_SETTINGS; 2834 updatePowerStateLocked(); 2835 } 2836 } 2837 } 2838 2839 private void setUserInactiveOverrideFromWindowManagerInternal() { 2840 synchronized (mLock) { 2841 mUserInactiveOverrideFromWindowManager = true; 2842 mDirty |= DIRTY_USER_ACTIVITY; 2843 updatePowerStateLocked(); 2844 } 2845 } 2846 2847 private void setUserActivityTimeoutOverrideFromWindowManagerInternal(long timeoutMillis) { 2848 synchronized (mLock) { 2849 if (mUserActivityTimeoutOverrideFromWindowManager != timeoutMillis) { 2850 mUserActivityTimeoutOverrideFromWindowManager = timeoutMillis; 2851 mDirty |= DIRTY_SETTINGS; 2852 updatePowerStateLocked(); 2853 } 2854 } 2855 } 2856 2857 private void setTemporaryScreenBrightnessSettingOverrideInternal(int brightness) { 2858 synchronized (mLock) { 2859 if (mTemporaryScreenBrightnessSettingOverride != brightness) { 2860 mTemporaryScreenBrightnessSettingOverride = brightness; 2861 mDirty |= DIRTY_SETTINGS; 2862 updatePowerStateLocked(); 2863 } 2864 } 2865 } 2866 2867 private void setTemporaryScreenAutoBrightnessAdjustmentSettingOverrideInternal(float adj) { 2868 synchronized (mLock) { 2869 // Note: This condition handles NaN because NaN is not equal to any other 2870 // value, including itself. 2871 if (mTemporaryScreenAutoBrightnessAdjustmentSettingOverride != adj) { 2872 mTemporaryScreenAutoBrightnessAdjustmentSettingOverride = adj; 2873 mDirty |= DIRTY_SETTINGS; 2874 updatePowerStateLocked(); 2875 } 2876 } 2877 } 2878 2879 private void setDozeOverrideFromDreamManagerInternal( 2880 int screenState, int screenBrightness) { 2881 synchronized (mLock) { 2882 if (mDozeScreenStateOverrideFromDreamManager != screenState 2883 || mDozeScreenBrightnessOverrideFromDreamManager != screenBrightness) { 2884 mDozeScreenStateOverrideFromDreamManager = screenState; 2885 mDozeScreenBrightnessOverrideFromDreamManager = screenBrightness; 2886 mDirty |= DIRTY_SETTINGS; 2887 updatePowerStateLocked(); 2888 } 2889 } 2890 } 2891 2892 private void powerHintInternal(int hintId, int data) { 2893 nativeSendPowerHint(hintId, data); 2894 } 2895 2896 /** 2897 * Low-level function turn the device off immediately, without trying 2898 * to be clean. Most people should use {@link ShutdownThread} for a clean shutdown. 2899 * 2900 * @param reason code to pass to android_reboot() (e.g. "userrequested"), or null. 2901 */ 2902 public static void lowLevelShutdown(String reason) { 2903 if (reason == null) { 2904 reason = ""; 2905 } 2906 SystemProperties.set("sys.powerctl", "shutdown," + reason); 2907 } 2908 2909 /** 2910 * Low-level function to reboot the device. On success, this 2911 * function doesn't return. If more than 20 seconds passes from 2912 * the time a reboot is requested, this method returns. 2913 * 2914 * @param reason code to pass to the kernel (e.g. "recovery"), or null. 2915 */ 2916 public static void lowLevelReboot(String reason) { 2917 if (reason == null) { 2918 reason = ""; 2919 } 2920 if (reason.equals(PowerManager.REBOOT_RECOVERY) 2921 || reason.equals(PowerManager.REBOOT_RECOVERY_UPDATE)) { 2922 reason = "recovery"; 2923 } 2924 2925 // If the reason is "quiescent", it means that the boot process should proceed 2926 // without turning on the screen/lights. 2927 // The "quiescent" property is sticky, meaning that any number 2928 // of subsequent reboots should honor the property until it is reset. 2929 if (reason.equals(PowerManager.REBOOT_QUIESCENT)) { 2930 sQuiescent = true; 2931 reason = ""; 2932 } 2933 2934 if (sQuiescent) { 2935 // Pass the optional "quiescent" argument to the bootloader to let it know 2936 // that it should not turn the screen/lights on. 2937 reason = reason + ",quiescent"; 2938 } 2939 2940 SystemProperties.set("sys.powerctl", "reboot," + reason); 2941 try { 2942 Thread.sleep(20 * 1000L); 2943 } catch (InterruptedException e) { 2944 Thread.currentThread().interrupt(); 2945 } 2946 Slog.wtf(TAG, "Unexpected return from lowLevelReboot!"); 2947 } 2948 2949 @Override // Watchdog.Monitor implementation 2950 public void monitor() { 2951 // Grab and release lock for watchdog monitor to detect deadlocks. 2952 synchronized (mLock) { 2953 } 2954 } 2955 2956 private void dumpInternal(PrintWriter pw) { 2957 pw.println("POWER MANAGER (dumpsys power)\n"); 2958 2959 final WirelessChargerDetector wcd; 2960 synchronized (mLock) { 2961 pw.println("Power Manager State:"); 2962 pw.println(" mDirty=0x" + Integer.toHexString(mDirty)); 2963 pw.println(" mWakefulness=" + PowerManagerInternal.wakefulnessToString(mWakefulness)); 2964 pw.println(" mWakefulnessChanging=" + mWakefulnessChanging); 2965 pw.println(" mIsPowered=" + mIsPowered); 2966 pw.println(" mPlugType=" + mPlugType); 2967 pw.println(" mBatteryLevel=" + mBatteryLevel); 2968 pw.println(" mBatteryLevelWhenDreamStarted=" + mBatteryLevelWhenDreamStarted); 2969 pw.println(" mDockState=" + mDockState); 2970 pw.println(" mStayOn=" + mStayOn); 2971 pw.println(" mProximityPositive=" + mProximityPositive); 2972 pw.println(" mBootCompleted=" + mBootCompleted); 2973 pw.println(" mSystemReady=" + mSystemReady); 2974 pw.println(" mHalAutoSuspendModeEnabled=" + mHalAutoSuspendModeEnabled); 2975 pw.println(" mHalInteractiveModeEnabled=" + mHalInteractiveModeEnabled); 2976 pw.println(" mWakeLockSummary=0x" + Integer.toHexString(mWakeLockSummary)); 2977 pw.print(" mNotifyLongScheduled="); 2978 if (mNotifyLongScheduled == 0) { 2979 pw.print("(none)"); 2980 } else { 2981 TimeUtils.formatDuration(mNotifyLongScheduled, SystemClock.uptimeMillis(), pw); 2982 } 2983 pw.println(); 2984 pw.print(" mNotifyLongDispatched="); 2985 if (mNotifyLongDispatched == 0) { 2986 pw.print("(none)"); 2987 } else { 2988 TimeUtils.formatDuration(mNotifyLongDispatched, SystemClock.uptimeMillis(), pw); 2989 } 2990 pw.println(); 2991 pw.print(" mNotifyLongNextCheck="); 2992 if (mNotifyLongNextCheck == 0) { 2993 pw.print("(none)"); 2994 } else { 2995 TimeUtils.formatDuration(mNotifyLongNextCheck, SystemClock.uptimeMillis(), pw); 2996 } 2997 pw.println(); 2998 pw.println(" mUserActivitySummary=0x" + Integer.toHexString(mUserActivitySummary)); 2999 pw.println(" mRequestWaitForNegativeProximity=" + mRequestWaitForNegativeProximity); 3000 pw.println(" mSandmanScheduled=" + mSandmanScheduled); 3001 pw.println(" mSandmanSummoned=" + mSandmanSummoned); 3002 pw.println(" mLowPowerModeEnabled=" + mLowPowerModeEnabled); 3003 pw.println(" mBatteryLevelLow=" + mBatteryLevelLow); 3004 pw.println(" mLightDeviceIdleMode=" + mLightDeviceIdleMode); 3005 pw.println(" mDeviceIdleMode=" + mDeviceIdleMode); 3006 pw.println(" mDeviceIdleWhitelist=" + Arrays.toString(mDeviceIdleWhitelist)); 3007 pw.println(" mDeviceIdleTempWhitelist=" + Arrays.toString(mDeviceIdleTempWhitelist)); 3008 pw.println(" mLastWakeTime=" + TimeUtils.formatUptime(mLastWakeTime)); 3009 pw.println(" mLastSleepTime=" + TimeUtils.formatUptime(mLastSleepTime)); 3010 pw.println(" mLastUserActivityTime=" + TimeUtils.formatUptime(mLastUserActivityTime)); 3011 pw.println(" mLastUserActivityTimeNoChangeLights=" 3012 + TimeUtils.formatUptime(mLastUserActivityTimeNoChangeLights)); 3013 pw.println(" mLastInteractivePowerHintTime=" 3014 + TimeUtils.formatUptime(mLastInteractivePowerHintTime)); 3015 pw.println(" mLastScreenBrightnessBoostTime=" 3016 + TimeUtils.formatUptime(mLastScreenBrightnessBoostTime)); 3017 pw.println(" mScreenBrightnessBoostInProgress=" 3018 + mScreenBrightnessBoostInProgress); 3019 pw.println(" mDisplayReady=" + mDisplayReady); 3020 pw.println(" mHoldingWakeLockSuspendBlocker=" + mHoldingWakeLockSuspendBlocker); 3021 pw.println(" mHoldingDisplaySuspendBlocker=" + mHoldingDisplaySuspendBlocker); 3022 3023 pw.println(); 3024 pw.println("Settings and Configuration:"); 3025 pw.println(" mDecoupleHalAutoSuspendModeFromDisplayConfig=" 3026 + mDecoupleHalAutoSuspendModeFromDisplayConfig); 3027 pw.println(" mDecoupleHalInteractiveModeFromDisplayConfig=" 3028 + mDecoupleHalInteractiveModeFromDisplayConfig); 3029 pw.println(" mWakeUpWhenPluggedOrUnpluggedConfig=" 3030 + mWakeUpWhenPluggedOrUnpluggedConfig); 3031 pw.println(" mWakeUpWhenPluggedOrUnpluggedInTheaterModeConfig=" 3032 + mWakeUpWhenPluggedOrUnpluggedInTheaterModeConfig); 3033 pw.println(" mTheaterModeEnabled=" 3034 + mTheaterModeEnabled); 3035 pw.println(" mSuspendWhenScreenOffDueToProximityConfig=" 3036 + mSuspendWhenScreenOffDueToProximityConfig); 3037 pw.println(" mDreamsSupportedConfig=" + mDreamsSupportedConfig); 3038 pw.println(" mDreamsEnabledByDefaultConfig=" + mDreamsEnabledByDefaultConfig); 3039 pw.println(" mDreamsActivatedOnSleepByDefaultConfig=" 3040 + mDreamsActivatedOnSleepByDefaultConfig); 3041 pw.println(" mDreamsActivatedOnDockByDefaultConfig=" 3042 + mDreamsActivatedOnDockByDefaultConfig); 3043 pw.println(" mDreamsEnabledOnBatteryConfig=" 3044 + mDreamsEnabledOnBatteryConfig); 3045 pw.println(" mDreamsBatteryLevelMinimumWhenPoweredConfig=" 3046 + mDreamsBatteryLevelMinimumWhenPoweredConfig); 3047 pw.println(" mDreamsBatteryLevelMinimumWhenNotPoweredConfig=" 3048 + mDreamsBatteryLevelMinimumWhenNotPoweredConfig); 3049 pw.println(" mDreamsBatteryLevelDrainCutoffConfig=" 3050 + mDreamsBatteryLevelDrainCutoffConfig); 3051 pw.println(" mDreamsEnabledSetting=" + mDreamsEnabledSetting); 3052 pw.println(" mDreamsActivateOnSleepSetting=" + mDreamsActivateOnSleepSetting); 3053 pw.println(" mDreamsActivateOnDockSetting=" + mDreamsActivateOnDockSetting); 3054 pw.println(" mDozeAfterScreenOffConfig=" + mDozeAfterScreenOffConfig); 3055 pw.println(" mLowPowerModeSetting=" + mLowPowerModeSetting); 3056 pw.println(" mAutoLowPowerModeConfigured=" + mAutoLowPowerModeConfigured); 3057 pw.println(" mAutoLowPowerModeSnoozing=" + mAutoLowPowerModeSnoozing); 3058 pw.println(" mMinimumScreenOffTimeoutConfig=" + mMinimumScreenOffTimeoutConfig); 3059 pw.println(" mMaximumScreenDimDurationConfig=" + mMaximumScreenDimDurationConfig); 3060 pw.println(" mMaximumScreenDimRatioConfig=" + mMaximumScreenDimRatioConfig); 3061 pw.println(" mScreenOffTimeoutSetting=" + mScreenOffTimeoutSetting); 3062 pw.println(" mSleepTimeoutSetting=" + mSleepTimeoutSetting); 3063 pw.println(" mMaximumScreenOffTimeoutFromDeviceAdmin=" 3064 + mMaximumScreenOffTimeoutFromDeviceAdmin + " (enforced=" 3065 + isMaximumScreenOffTimeoutFromDeviceAdminEnforcedLocked() + ")"); 3066 pw.println(" mStayOnWhilePluggedInSetting=" + mStayOnWhilePluggedInSetting); 3067 pw.println(" mScreenBrightnessSetting=" + mScreenBrightnessSetting); 3068 pw.println(" mScreenAutoBrightnessAdjustmentSetting=" 3069 + mScreenAutoBrightnessAdjustmentSetting); 3070 pw.println(" mScreenBrightnessModeSetting=" + mScreenBrightnessModeSetting); 3071 pw.println(" mScreenBrightnessOverrideFromWindowManager=" 3072 + mScreenBrightnessOverrideFromWindowManager); 3073 pw.println(" mUserActivityTimeoutOverrideFromWindowManager=" 3074 + mUserActivityTimeoutOverrideFromWindowManager); 3075 pw.println(" mUserInactiveOverrideFromWindowManager=" 3076 + mUserInactiveOverrideFromWindowManager); 3077 pw.println(" mTemporaryScreenBrightnessSettingOverride=" 3078 + mTemporaryScreenBrightnessSettingOverride); 3079 pw.println(" mTemporaryScreenAutoBrightnessAdjustmentSettingOverride=" 3080 + mTemporaryScreenAutoBrightnessAdjustmentSettingOverride); 3081 pw.println(" mDozeScreenStateOverrideFromDreamManager=" 3082 + mDozeScreenStateOverrideFromDreamManager); 3083 pw.println(" mDozeScreenBrightnessOverrideFromDreamManager=" 3084 + mDozeScreenBrightnessOverrideFromDreamManager); 3085 pw.println(" mScreenBrightnessSettingMinimum=" + mScreenBrightnessSettingMinimum); 3086 pw.println(" mScreenBrightnessSettingMaximum=" + mScreenBrightnessSettingMaximum); 3087 pw.println(" mScreenBrightnessSettingDefault=" + mScreenBrightnessSettingDefault); 3088 pw.println(" mDoubleTapWakeEnabled=" + mDoubleTapWakeEnabled); 3089 3090 final int sleepTimeout = getSleepTimeoutLocked(); 3091 final int screenOffTimeout = getScreenOffTimeoutLocked(sleepTimeout); 3092 final int screenDimDuration = getScreenDimDurationLocked(screenOffTimeout); 3093 pw.println(); 3094 pw.println("Sleep timeout: " + sleepTimeout + " ms"); 3095 pw.println("Screen off timeout: " + screenOffTimeout + " ms"); 3096 pw.println("Screen dim duration: " + screenDimDuration + " ms"); 3097 3098 pw.println(); 3099 pw.print("UID states (changing="); 3100 pw.print(mUidsChanging); 3101 pw.print(" changed="); 3102 pw.print(mUidsChanged); 3103 pw.println("):"); 3104 for (int i=0; i<mUidState.size(); i++) { 3105 final UidState state = mUidState.valueAt(i); 3106 pw.print(" UID "); UserHandle.formatUid(pw, mUidState.keyAt(i)); 3107 pw.print(": "); 3108 if (state.mActive) pw.print(" ACTIVE "); 3109 else pw.print("INACTIVE "); 3110 pw.print(" count="); 3111 pw.print(state.mNumWakeLocks); 3112 pw.print(" state="); 3113 pw.println(state.mProcState); 3114 } 3115 3116 pw.println(); 3117 pw.println("Looper state:"); 3118 mHandler.getLooper().dump(new PrintWriterPrinter(pw), " "); 3119 3120 pw.println(); 3121 pw.println("Wake Locks: size=" + mWakeLocks.size()); 3122 for (WakeLock wl : mWakeLocks) { 3123 pw.println(" " + wl); 3124 } 3125 3126 pw.println(); 3127 pw.println("Suspend Blockers: size=" + mSuspendBlockers.size()); 3128 for (SuspendBlocker sb : mSuspendBlockers) { 3129 pw.println(" " + sb); 3130 } 3131 3132 pw.println(); 3133 pw.println("Display Power: " + mDisplayPowerCallbacks); 3134 3135 wcd = mWirelessChargerDetector; 3136 } 3137 3138 if (wcd != null) { 3139 wcd.dump(pw); 3140 } 3141 } 3142 3143 private SuspendBlocker createSuspendBlockerLocked(String name) { 3144 SuspendBlocker suspendBlocker = new SuspendBlockerImpl(name); 3145 mSuspendBlockers.add(suspendBlocker); 3146 return suspendBlocker; 3147 } 3148 3149 private void incrementBootCount() { 3150 synchronized (mLock) { 3151 int count; 3152 try { 3153 count = Settings.Global.getInt( 3154 getContext().getContentResolver(), Settings.Global.BOOT_COUNT); 3155 } catch (SettingNotFoundException e) { 3156 count = 0; 3157 } 3158 Settings.Global.putInt( 3159 getContext().getContentResolver(), Settings.Global.BOOT_COUNT, count + 1); 3160 } 3161 } 3162 3163 private static WorkSource copyWorkSource(WorkSource workSource) { 3164 return workSource != null ? new WorkSource(workSource) : null; 3165 } 3166 3167 private final class BatteryReceiver extends BroadcastReceiver { 3168 @Override 3169 public void onReceive(Context context, Intent intent) { 3170 synchronized (mLock) { 3171 handleBatteryStateChangedLocked(); 3172 } 3173 } 3174 } 3175 3176 private final class DreamReceiver extends BroadcastReceiver { 3177 @Override 3178 public void onReceive(Context context, Intent intent) { 3179 synchronized (mLock) { 3180 scheduleSandmanLocked(); 3181 } 3182 } 3183 } 3184 3185 private final class UserSwitchedReceiver extends BroadcastReceiver { 3186 @Override 3187 public void onReceive(Context context, Intent intent) { 3188 synchronized (mLock) { 3189 handleSettingsChangedLocked(); 3190 } 3191 } 3192 } 3193 3194 private final class DockReceiver extends BroadcastReceiver { 3195 @Override 3196 public void onReceive(Context context, Intent intent) { 3197 synchronized (mLock) { 3198 int dockState = intent.getIntExtra(Intent.EXTRA_DOCK_STATE, 3199 Intent.EXTRA_DOCK_STATE_UNDOCKED); 3200 if (mDockState != dockState) { 3201 mDockState = dockState; 3202 mDirty |= DIRTY_DOCK_STATE; 3203 updatePowerStateLocked(); 3204 } 3205 } 3206 } 3207 } 3208 3209 private final class SettingsObserver extends ContentObserver { 3210 public SettingsObserver(Handler handler) { 3211 super(handler); 3212 } 3213 3214 @Override 3215 public void onChange(boolean selfChange, Uri uri) { 3216 synchronized (mLock) { 3217 handleSettingsChangedLocked(); 3218 } 3219 } 3220 } 3221 3222 private final IVrStateCallbacks mVrStateCallbacks = new IVrStateCallbacks.Stub() { 3223 @Override 3224 public void onVrStateChanged(boolean enabled) { 3225 powerHintInternal(PowerHint.VR_MODE, enabled ? 1 : 0); 3226 } 3227 }; 3228 3229 /** 3230 * Handler for asynchronous operations performed by the power manager. 3231 */ 3232 private final class PowerManagerHandler extends Handler { 3233 public PowerManagerHandler(Looper looper) { 3234 super(looper, null, true /*async*/); 3235 } 3236 3237 @Override 3238 public void handleMessage(Message msg) { 3239 switch (msg.what) { 3240 case MSG_USER_ACTIVITY_TIMEOUT: 3241 handleUserActivityTimeout(); 3242 break; 3243 case MSG_SANDMAN: 3244 handleSandman(); 3245 break; 3246 case MSG_SCREEN_BRIGHTNESS_BOOST_TIMEOUT: 3247 handleScreenBrightnessBoostTimeout(); 3248 break; 3249 case MSG_CHECK_FOR_LONG_WAKELOCKS: 3250 checkForLongWakeLocks(); 3251 break; 3252 } 3253 } 3254 } 3255 3256 /** 3257 * Represents a wake lock that has been acquired by an application. 3258 */ 3259 private final class WakeLock implements IBinder.DeathRecipient { 3260 public final IBinder mLock; 3261 public int mFlags; 3262 public String mTag; 3263 public final String mPackageName; 3264 public WorkSource mWorkSource; 3265 public String mHistoryTag; 3266 public final int mOwnerUid; 3267 public final int mOwnerPid; 3268 public final UidState mUidState; 3269 public long mAcquireTime; 3270 public boolean mNotifiedAcquired; 3271 public boolean mNotifiedLong; 3272 public boolean mDisabled; 3273 3274 public WakeLock(IBinder lock, int flags, String tag, String packageName, 3275 WorkSource workSource, String historyTag, int ownerUid, int ownerPid, 3276 UidState uidState) { 3277 mLock = lock; 3278 mFlags = flags; 3279 mTag = tag; 3280 mPackageName = packageName; 3281 mWorkSource = copyWorkSource(workSource); 3282 mHistoryTag = historyTag; 3283 mOwnerUid = ownerUid; 3284 mOwnerPid = ownerPid; 3285 mUidState = uidState; 3286 } 3287 3288 @Override 3289 public void binderDied() { 3290 PowerManagerService.this.handleWakeLockDeath(this); 3291 } 3292 3293 public boolean hasSameProperties(int flags, String tag, WorkSource workSource, 3294 int ownerUid, int ownerPid) { 3295 return mFlags == flags 3296 && mTag.equals(tag) 3297 && hasSameWorkSource(workSource) 3298 && mOwnerUid == ownerUid 3299 && mOwnerPid == ownerPid; 3300 } 3301 3302 public void updateProperties(int flags, String tag, String packageName, 3303 WorkSource workSource, String historyTag, int ownerUid, int ownerPid) { 3304 if (!mPackageName.equals(packageName)) { 3305 throw new IllegalStateException("Existing wake lock package name changed: " 3306 + mPackageName + " to " + packageName); 3307 } 3308 if (mOwnerUid != ownerUid) { 3309 throw new IllegalStateException("Existing wake lock uid changed: " 3310 + mOwnerUid + " to " + ownerUid); 3311 } 3312 if (mOwnerPid != ownerPid) { 3313 throw new IllegalStateException("Existing wake lock pid changed: " 3314 + mOwnerPid + " to " + ownerPid); 3315 } 3316 mFlags = flags; 3317 mTag = tag; 3318 updateWorkSource(workSource); 3319 mHistoryTag = historyTag; 3320 } 3321 3322 public boolean hasSameWorkSource(WorkSource workSource) { 3323 return Objects.equal(mWorkSource, workSource); 3324 } 3325 3326 public void updateWorkSource(WorkSource workSource) { 3327 mWorkSource = copyWorkSource(workSource); 3328 } 3329 3330 @Override 3331 public String toString() { 3332 StringBuilder sb = new StringBuilder(); 3333 sb.append(getLockLevelString()); 3334 sb.append(" '"); 3335 sb.append(mTag); 3336 sb.append("'"); 3337 sb.append(getLockFlagsString()); 3338 if (mDisabled) { 3339 sb.append(" DISABLED"); 3340 } 3341 if (mNotifiedAcquired) { 3342 sb.append(" ACQ="); 3343 TimeUtils.formatDuration(mAcquireTime-SystemClock.uptimeMillis(), sb); 3344 } 3345 if (mNotifiedLong) { 3346 sb.append(" LONG"); 3347 } 3348 sb.append(" (uid="); 3349 sb.append(mOwnerUid); 3350 if (mOwnerPid != 0) { 3351 sb.append(" pid="); 3352 sb.append(mOwnerPid); 3353 } 3354 if (mWorkSource != null) { 3355 sb.append(" ws="); 3356 sb.append(mWorkSource); 3357 } 3358 sb.append(")"); 3359 return sb.toString(); 3360 } 3361 3362 @SuppressWarnings("deprecation") 3363 private String getLockLevelString() { 3364 switch (mFlags & PowerManager.WAKE_LOCK_LEVEL_MASK) { 3365 case PowerManager.FULL_WAKE_LOCK: 3366 return "FULL_WAKE_LOCK "; 3367 case PowerManager.SCREEN_BRIGHT_WAKE_LOCK: 3368 return "SCREEN_BRIGHT_WAKE_LOCK "; 3369 case PowerManager.SCREEN_DIM_WAKE_LOCK: 3370 return "SCREEN_DIM_WAKE_LOCK "; 3371 case PowerManager.PARTIAL_WAKE_LOCK: 3372 return "PARTIAL_WAKE_LOCK "; 3373 case PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK: 3374 return "PROXIMITY_SCREEN_OFF_WAKE_LOCK"; 3375 case PowerManager.DOZE_WAKE_LOCK: 3376 return "DOZE_WAKE_LOCK "; 3377 case PowerManager.DRAW_WAKE_LOCK: 3378 return "DRAW_WAKE_LOCK "; 3379 default: 3380 return "??? "; 3381 } 3382 } 3383 3384 private String getLockFlagsString() { 3385 String result = ""; 3386 if ((mFlags & PowerManager.ACQUIRE_CAUSES_WAKEUP) != 0) { 3387 result += " ACQUIRE_CAUSES_WAKEUP"; 3388 } 3389 if ((mFlags & PowerManager.ON_AFTER_RELEASE) != 0) { 3390 result += " ON_AFTER_RELEASE"; 3391 } 3392 return result; 3393 } 3394 } 3395 3396 private final class SuspendBlockerImpl implements SuspendBlocker { 3397 private final String mName; 3398 private final String mTraceName; 3399 private int mReferenceCount; 3400 3401 public SuspendBlockerImpl(String name) { 3402 mName = name; 3403 mTraceName = "SuspendBlocker (" + name + ")"; 3404 } 3405 3406 @Override 3407 protected void finalize() throws Throwable { 3408 try { 3409 if (mReferenceCount != 0) { 3410 Slog.wtf(TAG, "Suspend blocker \"" + mName 3411 + "\" was finalized without being released!"); 3412 mReferenceCount = 0; 3413 nativeReleaseSuspendBlocker(mName); 3414 Trace.asyncTraceEnd(Trace.TRACE_TAG_POWER, mTraceName, 0); 3415 } 3416 } finally { 3417 super.finalize(); 3418 } 3419 } 3420 3421 @Override 3422 public void acquire() { 3423 synchronized (this) { 3424 mReferenceCount += 1; 3425 if (mReferenceCount == 1) { 3426 if (DEBUG_SPEW) { 3427 Slog.d(TAG, "Acquiring suspend blocker \"" + mName + "\"."); 3428 } 3429 Trace.asyncTraceBegin(Trace.TRACE_TAG_POWER, mTraceName, 0); 3430 nativeAcquireSuspendBlocker(mName); 3431 } 3432 } 3433 } 3434 3435 @Override 3436 public void release() { 3437 synchronized (this) { 3438 mReferenceCount -= 1; 3439 if (mReferenceCount == 0) { 3440 if (DEBUG_SPEW) { 3441 Slog.d(TAG, "Releasing suspend blocker \"" + mName + "\"."); 3442 } 3443 nativeReleaseSuspendBlocker(mName); 3444 Trace.asyncTraceEnd(Trace.TRACE_TAG_POWER, mTraceName, 0); 3445 } else if (mReferenceCount < 0) { 3446 Slog.wtf(TAG, "Suspend blocker \"" + mName 3447 + "\" was released without being acquired!", new Throwable()); 3448 mReferenceCount = 0; 3449 } 3450 } 3451 } 3452 3453 @Override 3454 public String toString() { 3455 synchronized (this) { 3456 return mName + ": ref count=" + mReferenceCount; 3457 } 3458 } 3459 } 3460 3461 static final class UidState { 3462 final int mUid; 3463 int mNumWakeLocks; 3464 int mProcState; 3465 boolean mActive; 3466 3467 UidState(int uid) { 3468 mUid = uid; 3469 } 3470 } 3471 3472 private final class BinderService extends IPowerManager.Stub { 3473 @Override // Binder call 3474 public void acquireWakeLockWithUid(IBinder lock, int flags, String tag, 3475 String packageName, int uid) { 3476 if (uid < 0) { 3477 uid = Binder.getCallingUid(); 3478 } 3479 acquireWakeLock(lock, flags, tag, packageName, new WorkSource(uid), null); 3480 } 3481 3482 @Override // Binder call 3483 public void powerHint(int hintId, int data) { 3484 if (!mSystemReady) { 3485 // Service not ready yet, so who the heck cares about power hints, bah. 3486 return; 3487 } 3488 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null); 3489 powerHintInternal(hintId, data); 3490 } 3491 3492 @Override // Binder call 3493 public void acquireWakeLock(IBinder lock, int flags, String tag, String packageName, 3494 WorkSource ws, String historyTag) { 3495 if (lock == null) { 3496 throw new IllegalArgumentException("lock must not be null"); 3497 } 3498 if (packageName == null) { 3499 throw new IllegalArgumentException("packageName must not be null"); 3500 } 3501 PowerManager.validateWakeLockParameters(flags, tag); 3502 3503 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WAKE_LOCK, null); 3504 if ((flags & PowerManager.DOZE_WAKE_LOCK) != 0) { 3505 mContext.enforceCallingOrSelfPermission( 3506 android.Manifest.permission.DEVICE_POWER, null); 3507 } 3508 if (ws != null && ws.size() != 0) { 3509 mContext.enforceCallingOrSelfPermission( 3510 android.Manifest.permission.UPDATE_DEVICE_STATS, null); 3511 } else { 3512 ws = null; 3513 } 3514 3515 final int uid = Binder.getCallingUid(); 3516 final int pid = Binder.getCallingPid(); 3517 final long ident = Binder.clearCallingIdentity(); 3518 try { 3519 acquireWakeLockInternal(lock, flags, tag, packageName, ws, historyTag, uid, pid); 3520 } finally { 3521 Binder.restoreCallingIdentity(ident); 3522 } 3523 } 3524 3525 @Override // Binder call 3526 public void releaseWakeLock(IBinder lock, int flags) { 3527 if (lock == null) { 3528 throw new IllegalArgumentException("lock must not be null"); 3529 } 3530 3531 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WAKE_LOCK, null); 3532 3533 final long ident = Binder.clearCallingIdentity(); 3534 try { 3535 releaseWakeLockInternal(lock, flags); 3536 } finally { 3537 Binder.restoreCallingIdentity(ident); 3538 } 3539 } 3540 3541 @Override // Binder call 3542 public void updateWakeLockUids(IBinder lock, int[] uids) { 3543 WorkSource ws = null; 3544 3545 if (uids != null) { 3546 ws = new WorkSource(); 3547 // XXX should WorkSource have a way to set uids as an int[] instead of adding them 3548 // one at a time? 3549 for (int i = 0; i < uids.length; i++) { 3550 ws.add(uids[i]); 3551 } 3552 } 3553 updateWakeLockWorkSource(lock, ws, null); 3554 } 3555 3556 @Override // Binder call 3557 public void updateWakeLockWorkSource(IBinder lock, WorkSource ws, String historyTag) { 3558 if (lock == null) { 3559 throw new IllegalArgumentException("lock must not be null"); 3560 } 3561 3562 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WAKE_LOCK, null); 3563 if (ws != null && ws.size() != 0) { 3564 mContext.enforceCallingOrSelfPermission( 3565 android.Manifest.permission.UPDATE_DEVICE_STATS, null); 3566 } else { 3567 ws = null; 3568 } 3569 3570 final int callingUid = Binder.getCallingUid(); 3571 final long ident = Binder.clearCallingIdentity(); 3572 try { 3573 updateWakeLockWorkSourceInternal(lock, ws, historyTag, callingUid); 3574 } finally { 3575 Binder.restoreCallingIdentity(ident); 3576 } 3577 } 3578 3579 @Override // Binder call 3580 public boolean isWakeLockLevelSupported(int level) { 3581 final long ident = Binder.clearCallingIdentity(); 3582 try { 3583 return isWakeLockLevelSupportedInternal(level); 3584 } finally { 3585 Binder.restoreCallingIdentity(ident); 3586 } 3587 } 3588 3589 @Override // Binder call 3590 public void userActivity(long eventTime, int event, int flags) { 3591 final long now = SystemClock.uptimeMillis(); 3592 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER) 3593 != PackageManager.PERMISSION_GRANTED 3594 && mContext.checkCallingOrSelfPermission( 3595 android.Manifest.permission.USER_ACTIVITY) 3596 != PackageManager.PERMISSION_GRANTED) { 3597 // Once upon a time applications could call userActivity(). 3598 // Now we require the DEVICE_POWER permission. Log a warning and ignore the 3599 // request instead of throwing a SecurityException so we don't break old apps. 3600 synchronized (mLock) { 3601 if (now >= mLastWarningAboutUserActivityPermission + (5 * 60 * 1000)) { 3602 mLastWarningAboutUserActivityPermission = now; 3603 Slog.w(TAG, "Ignoring call to PowerManager.userActivity() because the " 3604 + "caller does not have DEVICE_POWER or USER_ACTIVITY " 3605 + "permission. Please fix your app! " 3606 + " pid=" + Binder.getCallingPid() 3607 + " uid=" + Binder.getCallingUid()); 3608 } 3609 } 3610 return; 3611 } 3612 3613 if (eventTime > now) { 3614 throw new IllegalArgumentException("event time must not be in the future"); 3615 } 3616 3617 final int uid = Binder.getCallingUid(); 3618 final long ident = Binder.clearCallingIdentity(); 3619 try { 3620 userActivityInternal(eventTime, event, flags, uid); 3621 } finally { 3622 Binder.restoreCallingIdentity(ident); 3623 } 3624 } 3625 3626 @Override // Binder call 3627 public void wakeUp(long eventTime, String reason, String opPackageName) { 3628 if (eventTime > SystemClock.uptimeMillis()) { 3629 throw new IllegalArgumentException("event time must not be in the future"); 3630 } 3631 3632 mContext.enforceCallingOrSelfPermission( 3633 android.Manifest.permission.DEVICE_POWER, null); 3634 3635 final int uid = Binder.getCallingUid(); 3636 final long ident = Binder.clearCallingIdentity(); 3637 try { 3638 wakeUpInternal(eventTime, reason, uid, opPackageName, uid); 3639 } finally { 3640 Binder.restoreCallingIdentity(ident); 3641 } 3642 } 3643 3644 @Override // Binder call 3645 public void goToSleep(long eventTime, int reason, int flags) { 3646 if (eventTime > SystemClock.uptimeMillis()) { 3647 throw new IllegalArgumentException("event time must not be in the future"); 3648 } 3649 3650 mContext.enforceCallingOrSelfPermission( 3651 android.Manifest.permission.DEVICE_POWER, null); 3652 3653 final int uid = Binder.getCallingUid(); 3654 final long ident = Binder.clearCallingIdentity(); 3655 try { 3656 goToSleepInternal(eventTime, reason, flags, uid); 3657 } finally { 3658 Binder.restoreCallingIdentity(ident); 3659 } 3660 } 3661 3662 @Override // Binder call 3663 public void nap(long eventTime) { 3664 if (eventTime > SystemClock.uptimeMillis()) { 3665 throw new IllegalArgumentException("event time must not be in the future"); 3666 } 3667 3668 mContext.enforceCallingOrSelfPermission( 3669 android.Manifest.permission.DEVICE_POWER, null); 3670 3671 final int uid = Binder.getCallingUid(); 3672 final long ident = Binder.clearCallingIdentity(); 3673 try { 3674 napInternal(eventTime, uid); 3675 } finally { 3676 Binder.restoreCallingIdentity(ident); 3677 } 3678 } 3679 3680 @Override // Binder call 3681 public boolean isInteractive() { 3682 final long ident = Binder.clearCallingIdentity(); 3683 try { 3684 return isInteractiveInternal(); 3685 } finally { 3686 Binder.restoreCallingIdentity(ident); 3687 } 3688 } 3689 3690 @Override // Binder call 3691 public boolean isPowerSaveMode() { 3692 final long ident = Binder.clearCallingIdentity(); 3693 try { 3694 return isLowPowerModeInternal(); 3695 } finally { 3696 Binder.restoreCallingIdentity(ident); 3697 } 3698 } 3699 3700 @Override // Binder call 3701 public boolean setPowerSaveMode(boolean mode) { 3702 mContext.enforceCallingOrSelfPermission( 3703 android.Manifest.permission.DEVICE_POWER, null); 3704 final long ident = Binder.clearCallingIdentity(); 3705 try { 3706 return setLowPowerModeInternal(mode); 3707 } finally { 3708 Binder.restoreCallingIdentity(ident); 3709 } 3710 } 3711 3712 @Override // Binder call 3713 public boolean isDeviceIdleMode() { 3714 final long ident = Binder.clearCallingIdentity(); 3715 try { 3716 return isDeviceIdleModeInternal(); 3717 } finally { 3718 Binder.restoreCallingIdentity(ident); 3719 } 3720 } 3721 3722 @Override // Binder call 3723 public boolean isLightDeviceIdleMode() { 3724 final long ident = Binder.clearCallingIdentity(); 3725 try { 3726 return isLightDeviceIdleModeInternal(); 3727 } finally { 3728 Binder.restoreCallingIdentity(ident); 3729 } 3730 } 3731 3732 /** 3733 * Reboots the device. 3734 * 3735 * @param confirm If true, shows a reboot confirmation dialog. 3736 * @param reason The reason for the reboot, or null if none. 3737 * @param wait If true, this call waits for the reboot to complete and does not return. 3738 */ 3739 @Override // Binder call 3740 public void reboot(boolean confirm, String reason, boolean wait) { 3741 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.REBOOT, null); 3742 if (PowerManager.REBOOT_RECOVERY.equals(reason) 3743 || PowerManager.REBOOT_RECOVERY_UPDATE.equals(reason)) { 3744 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.RECOVERY, null); 3745 } 3746 3747 final long ident = Binder.clearCallingIdentity(); 3748 try { 3749 shutdownOrRebootInternal(HALT_MODE_REBOOT, confirm, reason, wait); 3750 } finally { 3751 Binder.restoreCallingIdentity(ident); 3752 } 3753 } 3754 3755 /** 3756 * Reboots the device into safe mode 3757 * 3758 * @param confirm If true, shows a reboot confirmation dialog. 3759 * @param wait If true, this call waits for the reboot to complete and does not return. 3760 */ 3761 @Override // Binder call 3762 public void rebootSafeMode(boolean confirm, boolean wait) { 3763 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.REBOOT, null); 3764 3765 final long ident = Binder.clearCallingIdentity(); 3766 try { 3767 shutdownOrRebootInternal(HALT_MODE_REBOOT_SAFE_MODE, confirm, 3768 PowerManager.REBOOT_SAFE_MODE, wait); 3769 } finally { 3770 Binder.restoreCallingIdentity(ident); 3771 } 3772 } 3773 3774 /** 3775 * Shuts down the device. 3776 * 3777 * @param confirm If true, shows a shutdown confirmation dialog. 3778 * @param wait If true, this call waits for the shutdown to complete and does not return. 3779 */ 3780 @Override // Binder call 3781 public void shutdown(boolean confirm, String reason, boolean wait) { 3782 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.REBOOT, null); 3783 3784 final long ident = Binder.clearCallingIdentity(); 3785 try { 3786 shutdownOrRebootInternal(HALT_MODE_SHUTDOWN, confirm, reason, wait); 3787 } finally { 3788 Binder.restoreCallingIdentity(ident); 3789 } 3790 } 3791 3792 /** 3793 * Crash the runtime (causing a complete restart of the Android framework). 3794 * Requires REBOOT permission. Mostly for testing. Should not return. 3795 */ 3796 @Override // Binder call 3797 public void crash(String message) { 3798 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.REBOOT, null); 3799 3800 final long ident = Binder.clearCallingIdentity(); 3801 try { 3802 crashInternal(message); 3803 } finally { 3804 Binder.restoreCallingIdentity(ident); 3805 } 3806 } 3807 3808 /** 3809 * Set the setting that determines whether the device stays on when plugged in. 3810 * The argument is a bit string, with each bit specifying a power source that, 3811 * when the device is connected to that source, causes the device to stay on. 3812 * See {@link android.os.BatteryManager} for the list of power sources that 3813 * can be specified. Current values include 3814 * {@link android.os.BatteryManager#BATTERY_PLUGGED_AC} 3815 * and {@link android.os.BatteryManager#BATTERY_PLUGGED_USB} 3816 * 3817 * Used by "adb shell svc power stayon ..." 3818 * 3819 * @param val an {@code int} containing the bits that specify which power sources 3820 * should cause the device to stay on. 3821 */ 3822 @Override // Binder call 3823 public void setStayOnSetting(int val) { 3824 int uid = Binder.getCallingUid(); 3825 // if uid is of root's, we permit this operation straight away 3826 if (uid != Process.ROOT_UID) { 3827 if (!Settings.checkAndNoteWriteSettingsOperation(mContext, uid, 3828 Settings.getPackageNameForUid(mContext, uid), true)) { 3829 return; 3830 } 3831 } 3832 3833 final long ident = Binder.clearCallingIdentity(); 3834 try { 3835 setStayOnSettingInternal(val); 3836 } finally { 3837 Binder.restoreCallingIdentity(ident); 3838 } 3839 } 3840 3841 /** 3842 * Used by the settings application and brightness control widgets to 3843 * temporarily override the current screen brightness setting so that the 3844 * user can observe the effect of an intended settings change without applying 3845 * it immediately. 3846 * 3847 * The override will be canceled when the setting value is next updated. 3848 * 3849 * @param brightness The overridden brightness. 3850 * 3851 * @see android.provider.Settings.System#SCREEN_BRIGHTNESS 3852 */ 3853 @Override // Binder call 3854 public void setTemporaryScreenBrightnessSettingOverride(int brightness) { 3855 mContext.enforceCallingOrSelfPermission( 3856 android.Manifest.permission.DEVICE_POWER, null); 3857 3858 final long ident = Binder.clearCallingIdentity(); 3859 try { 3860 setTemporaryScreenBrightnessSettingOverrideInternal(brightness); 3861 } finally { 3862 Binder.restoreCallingIdentity(ident); 3863 } 3864 } 3865 3866 /** 3867 * Used by the settings application and brightness control widgets to 3868 * temporarily override the current screen auto-brightness adjustment setting so that the 3869 * user can observe the effect of an intended settings change without applying 3870 * it immediately. 3871 * 3872 * The override will be canceled when the setting value is next updated. 3873 * 3874 * @param adj The overridden brightness, or Float.NaN to disable the override. 3875 * 3876 * @see android.provider.Settings.System#SCREEN_AUTO_BRIGHTNESS_ADJ 3877 */ 3878 @Override // Binder call 3879 public void setTemporaryScreenAutoBrightnessAdjustmentSettingOverride(float adj) { 3880 mContext.enforceCallingOrSelfPermission( 3881 android.Manifest.permission.DEVICE_POWER, null); 3882 3883 final long ident = Binder.clearCallingIdentity(); 3884 try { 3885 setTemporaryScreenAutoBrightnessAdjustmentSettingOverrideInternal(adj); 3886 } finally { 3887 Binder.restoreCallingIdentity(ident); 3888 } 3889 } 3890 3891 /** 3892 * Used by the phone application to make the attention LED flash when ringing. 3893 */ 3894 @Override // Binder call 3895 public void setAttentionLight(boolean on, int color) { 3896 mContext.enforceCallingOrSelfPermission( 3897 android.Manifest.permission.DEVICE_POWER, null); 3898 3899 final long ident = Binder.clearCallingIdentity(); 3900 try { 3901 setAttentionLightInternal(on, color); 3902 } finally { 3903 Binder.restoreCallingIdentity(ident); 3904 } 3905 } 3906 3907 @Override // Binder call 3908 public void boostScreenBrightness(long eventTime) { 3909 if (eventTime > SystemClock.uptimeMillis()) { 3910 throw new IllegalArgumentException("event time must not be in the future"); 3911 } 3912 3913 mContext.enforceCallingOrSelfPermission( 3914 android.Manifest.permission.DEVICE_POWER, null); 3915 3916 final int uid = Binder.getCallingUid(); 3917 final long ident = Binder.clearCallingIdentity(); 3918 try { 3919 boostScreenBrightnessInternal(eventTime, uid); 3920 } finally { 3921 Binder.restoreCallingIdentity(ident); 3922 } 3923 } 3924 3925 @Override // Binder call 3926 public boolean isScreenBrightnessBoosted() { 3927 final long ident = Binder.clearCallingIdentity(); 3928 try { 3929 return isScreenBrightnessBoostedInternal(); 3930 } finally { 3931 Binder.restoreCallingIdentity(ident); 3932 } 3933 } 3934 3935 @Override // Binder call 3936 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 3937 if (mContext.checkCallingOrSelfPermission(Manifest.permission.DUMP) 3938 != PackageManager.PERMISSION_GRANTED) { 3939 pw.println("Permission Denial: can't dump PowerManager from from pid=" 3940 + Binder.getCallingPid() 3941 + ", uid=" + Binder.getCallingUid()); 3942 return; 3943 } 3944 3945 final long ident = Binder.clearCallingIdentity(); 3946 try { 3947 dumpInternal(pw); 3948 } finally { 3949 Binder.restoreCallingIdentity(ident); 3950 } 3951 } 3952 } 3953 3954 private final class LocalService extends PowerManagerInternal { 3955 @Override 3956 public void setScreenBrightnessOverrideFromWindowManager(int screenBrightness) { 3957 if (screenBrightness < PowerManager.BRIGHTNESS_DEFAULT 3958 || screenBrightness > PowerManager.BRIGHTNESS_ON) { 3959 screenBrightness = PowerManager.BRIGHTNESS_DEFAULT; 3960 } 3961 setScreenBrightnessOverrideFromWindowManagerInternal(screenBrightness); 3962 } 3963 3964 @Override 3965 public void setButtonBrightnessOverrideFromWindowManager(int screenBrightness) { 3966 // Do nothing. 3967 // Button lights are not currently supported in the new implementation. 3968 } 3969 3970 @Override 3971 public void setDozeOverrideFromDreamManager(int screenState, int screenBrightness) { 3972 switch (screenState) { 3973 case Display.STATE_UNKNOWN: 3974 case Display.STATE_OFF: 3975 case Display.STATE_DOZE: 3976 case Display.STATE_DOZE_SUSPEND: 3977 case Display.STATE_ON: 3978 break; 3979 default: 3980 screenState = Display.STATE_UNKNOWN; 3981 break; 3982 } 3983 if (screenBrightness < PowerManager.BRIGHTNESS_DEFAULT 3984 || screenBrightness > PowerManager.BRIGHTNESS_ON) { 3985 screenBrightness = PowerManager.BRIGHTNESS_DEFAULT; 3986 } 3987 setDozeOverrideFromDreamManagerInternal(screenState, screenBrightness); 3988 } 3989 3990 @Override 3991 public void setUserInactiveOverrideFromWindowManager() { 3992 setUserInactiveOverrideFromWindowManagerInternal(); 3993 } 3994 3995 @Override 3996 public void setUserActivityTimeoutOverrideFromWindowManager(long timeoutMillis) { 3997 setUserActivityTimeoutOverrideFromWindowManagerInternal(timeoutMillis); 3998 } 3999 4000 @Override 4001 public void setMaximumScreenOffTimeoutFromDeviceAdmin(int timeMs) { 4002 setMaximumScreenOffTimeoutFromDeviceAdminInternal(timeMs); 4003 } 4004 4005 @Override 4006 public boolean getLowPowerModeEnabled() { 4007 synchronized (mLock) { 4008 return mLowPowerModeEnabled; 4009 } 4010 } 4011 4012 @Override 4013 public void registerLowPowerModeObserver(LowPowerModeListener listener) { 4014 synchronized (mLock) { 4015 mLowPowerModeListeners.add(listener); 4016 } 4017 } 4018 4019 @Override 4020 public boolean setDeviceIdleMode(boolean enabled) { 4021 return setDeviceIdleModeInternal(enabled); 4022 } 4023 4024 @Override 4025 public boolean setLightDeviceIdleMode(boolean enabled) { 4026 return setLightDeviceIdleModeInternal(enabled); 4027 } 4028 4029 @Override 4030 public void setDeviceIdleWhitelist(int[] appids) { 4031 setDeviceIdleWhitelistInternal(appids); 4032 } 4033 4034 @Override 4035 public void setDeviceIdleTempWhitelist(int[] appids) { 4036 setDeviceIdleTempWhitelistInternal(appids); 4037 } 4038 4039 @Override 4040 public void startUidChanges() { 4041 startUidChangesInternal(); 4042 } 4043 4044 @Override 4045 public void finishUidChanges() { 4046 finishUidChangesInternal(); 4047 } 4048 4049 @Override 4050 public void updateUidProcState(int uid, int procState) { 4051 updateUidProcStateInternal(uid, procState); 4052 } 4053 4054 @Override 4055 public void uidGone(int uid) { 4056 uidGoneInternal(uid); 4057 } 4058 4059 @Override 4060 public void uidActive(int uid) { 4061 uidActiveInternal(uid); 4062 } 4063 4064 @Override 4065 public void uidIdle(int uid) { 4066 uidIdleInternal(uid); 4067 } 4068 4069 @Override 4070 public void powerHint(int hintId, int data) { 4071 powerHintInternal(hintId, data); 4072 } 4073 } 4074} 4075