PowerManagerService.java revision 02cc684e42b13454ba1a013340b41696323a4c2a
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server.power; 18 19import com.android.internal.app.IAppOpsService; 20import com.android.internal.app.IBatteryStats; 21import com.android.server.BatteryService; 22import com.android.server.EventLogTags; 23import com.android.server.lights.LightsService; 24import com.android.server.lights.Light; 25import com.android.server.lights.LightsManager; 26import com.android.server.twilight.TwilightManager; 27import com.android.server.Watchdog; 28import com.android.server.display.DisplayManagerService; 29import com.android.server.dreams.DreamManagerService; 30 31import android.Manifest; 32import android.content.BroadcastReceiver; 33import android.content.ContentResolver; 34import android.content.Context; 35import android.content.Intent; 36import android.content.IntentFilter; 37import android.content.pm.PackageManager; 38import android.content.res.Resources; 39import android.database.ContentObserver; 40import android.hardware.SensorManager; 41import android.hardware.SystemSensorManager; 42import android.net.Uri; 43import android.os.BatteryManager; 44import android.os.Binder; 45import android.os.Handler; 46import android.os.HandlerThread; 47import android.os.IBinder; 48import android.os.IPowerManager; 49import android.os.Looper; 50import android.os.Message; 51import android.os.PowerManager; 52import android.os.Process; 53import android.os.RemoteException; 54import android.os.SystemClock; 55import android.os.SystemProperties; 56import android.os.SystemService; 57import android.os.UserHandle; 58import android.os.WorkSource; 59import android.provider.Settings; 60import android.util.EventLog; 61import android.util.Log; 62import android.util.Slog; 63import android.util.TimeUtils; 64import android.view.WindowManagerPolicy; 65 66import java.io.FileDescriptor; 67import java.io.PrintWriter; 68import java.util.ArrayList; 69 70import libcore.util.Objects; 71 72/** 73 * The power manager service is responsible for coordinating power management 74 * functions on the device. 75 */ 76public final class PowerManagerService extends IPowerManager.Stub 77 implements Watchdog.Monitor { 78 private static final String TAG = "PowerManagerService"; 79 80 private static final boolean DEBUG = false; 81 private static final boolean DEBUG_SPEW = DEBUG && true; 82 83 // Message: Sent when a user activity timeout occurs to update the power state. 84 private static final int MSG_USER_ACTIVITY_TIMEOUT = 1; 85 // Message: Sent when the device enters or exits a napping or dreaming state. 86 private static final int MSG_SANDMAN = 2; 87 // Message: Sent when the screen on blocker is released. 88 private static final int MSG_SCREEN_ON_BLOCKER_RELEASED = 3; 89 // Message: Sent to poll whether the boot animation has terminated. 90 private static final int MSG_CHECK_IF_BOOT_ANIMATION_FINISHED = 4; 91 92 // Dirty bit: mWakeLocks changed 93 private static final int DIRTY_WAKE_LOCKS = 1 << 0; 94 // Dirty bit: mWakefulness changed 95 private static final int DIRTY_WAKEFULNESS = 1 << 1; 96 // Dirty bit: user activity was poked or may have timed out 97 private static final int DIRTY_USER_ACTIVITY = 1 << 2; 98 // Dirty bit: actual display power state was updated asynchronously 99 private static final int DIRTY_ACTUAL_DISPLAY_POWER_STATE_UPDATED = 1 << 3; 100 // Dirty bit: mBootCompleted changed 101 private static final int DIRTY_BOOT_COMPLETED = 1 << 4; 102 // Dirty bit: settings changed 103 private static final int DIRTY_SETTINGS = 1 << 5; 104 // Dirty bit: mIsPowered changed 105 private static final int DIRTY_IS_POWERED = 1 << 6; 106 // Dirty bit: mStayOn changed 107 private static final int DIRTY_STAY_ON = 1 << 7; 108 // Dirty bit: battery state changed 109 private static final int DIRTY_BATTERY_STATE = 1 << 8; 110 // Dirty bit: proximity state changed 111 private static final int DIRTY_PROXIMITY_POSITIVE = 1 << 9; 112 // Dirty bit: screen on blocker state became held or unheld 113 private static final int DIRTY_SCREEN_ON_BLOCKER_RELEASED = 1 << 10; 114 // Dirty bit: dock state changed 115 private static final int DIRTY_DOCK_STATE = 1 << 11; 116 117 // Wakefulness: The device is asleep and can only be awoken by a call to wakeUp(). 118 // The screen should be off or in the process of being turned off by the display controller. 119 private static final int WAKEFULNESS_ASLEEP = 0; 120 // Wakefulness: The device is fully awake. It can be put to sleep by a call to goToSleep(). 121 // When the user activity timeout expires, the device may start napping or go to sleep. 122 private static final int WAKEFULNESS_AWAKE = 1; 123 // Wakefulness: The device is napping. It is deciding whether to dream or go to sleep 124 // but hasn't gotten around to it yet. It can be awoken by a call to wakeUp(), which 125 // ends the nap. User activity may brighten the screen but does not end the nap. 126 private static final int WAKEFULNESS_NAPPING = 2; 127 // Wakefulness: The device is dreaming. It can be awoken by a call to wakeUp(), 128 // which ends the dream. The device goes to sleep when goToSleep() is called, when 129 // the dream ends or when unplugged. 130 // User activity may brighten the screen but does not end the dream. 131 private static final int WAKEFULNESS_DREAMING = 3; 132 133 // Summarizes the state of all active wakelocks. 134 private static final int WAKE_LOCK_CPU = 1 << 0; 135 private static final int WAKE_LOCK_SCREEN_BRIGHT = 1 << 1; 136 private static final int WAKE_LOCK_SCREEN_DIM = 1 << 2; 137 private static final int WAKE_LOCK_BUTTON_BRIGHT = 1 << 3; 138 private static final int WAKE_LOCK_PROXIMITY_SCREEN_OFF = 1 << 4; 139 private static final int WAKE_LOCK_STAY_AWAKE = 1 << 5; // only set if already awake 140 141 // Summarizes the user activity state. 142 private static final int USER_ACTIVITY_SCREEN_BRIGHT = 1 << 0; 143 private static final int USER_ACTIVITY_SCREEN_DIM = 1 << 1; 144 145 // Default and minimum screen off timeout in milliseconds. 146 private static final int DEFAULT_SCREEN_OFF_TIMEOUT = 15 * 1000; 147 private static final int MINIMUM_SCREEN_OFF_TIMEOUT = 10 * 1000; 148 149 // The screen dim duration, in milliseconds. 150 // This is subtracted from the end of the screen off timeout so the 151 // minimum screen off timeout should be longer than this. 152 private static final int SCREEN_DIM_DURATION = 7 * 1000; 153 154 // The maximum screen dim time expressed as a ratio relative to the screen 155 // off timeout. If the screen off timeout is very short then we want the 156 // dim timeout to also be quite short so that most of the time is spent on. 157 // Otherwise the user won't get much screen on time before dimming occurs. 158 private static final float MAXIMUM_SCREEN_DIM_RATIO = 0.2f; 159 160 // The name of the boot animation service in init.rc. 161 private static final String BOOT_ANIMATION_SERVICE = "bootanim"; 162 163 // Poll interval in milliseconds for watching boot animation finished. 164 private static final int BOOT_ANIMATION_POLL_INTERVAL = 200; 165 166 // If the battery level drops by this percentage and the user activity timeout 167 // has expired, then assume the device is receiving insufficient current to charge 168 // effectively and terminate the dream. 169 private static final int DREAM_BATTERY_LEVEL_DRAIN_CUTOFF = 5; 170 171 private Context mContext; 172 private LightsManager mLightsManager; 173 private BatteryService mBatteryService; 174 private DisplayManagerService mDisplayManagerService; 175 private IBatteryStats mBatteryStats; 176 private IAppOpsService mAppOps; 177 private HandlerThread mHandlerThread; 178 private PowerManagerHandler mHandler; 179 private WindowManagerPolicy mPolicy; 180 private Notifier mNotifier; 181 private DisplayPowerController mDisplayPowerController; 182 private WirelessChargerDetector mWirelessChargerDetector; 183 private SettingsObserver mSettingsObserver; 184 private DreamManagerService mDreamManager; 185 private Light mAttentionLight; 186 187 private final Object mLock = new Object(); 188 189 // A bitfield that indicates what parts of the power state have 190 // changed and need to be recalculated. 191 private int mDirty; 192 193 // Indicates whether the device is awake or asleep or somewhere in between. 194 // This is distinct from the screen power state, which is managed separately. 195 private int mWakefulness; 196 197 // True if MSG_SANDMAN has been scheduled. 198 private boolean mSandmanScheduled; 199 200 // Table of all suspend blockers. 201 // There should only be a few of these. 202 private final ArrayList<SuspendBlocker> mSuspendBlockers = new ArrayList<SuspendBlocker>(); 203 204 // Table of all wake locks acquired by applications. 205 private final ArrayList<WakeLock> mWakeLocks = new ArrayList<WakeLock>(); 206 207 // A bitfield that summarizes the state of all active wakelocks. 208 private int mWakeLockSummary; 209 210 // If true, instructs the display controller to wait for the proximity sensor to 211 // go negative before turning the screen on. 212 private boolean mRequestWaitForNegativeProximity; 213 214 // Timestamp of the last time the device was awoken or put to sleep. 215 private long mLastWakeTime; 216 private long mLastSleepTime; 217 218 // True if we need to send a wake up or go to sleep finished notification 219 // when the display is ready. 220 private boolean mSendWakeUpFinishedNotificationWhenReady; 221 private boolean mSendGoToSleepFinishedNotificationWhenReady; 222 223 // Timestamp of the last call to user activity. 224 private long mLastUserActivityTime; 225 private long mLastUserActivityTimeNoChangeLights; 226 227 // A bitfield that summarizes the effect of the user activity timer. 228 // A zero value indicates that the user activity timer has expired. 229 private int mUserActivitySummary; 230 231 // The desired display power state. The actual state may lag behind the 232 // requested because it is updated asynchronously by the display power controller. 233 private final DisplayPowerRequest mDisplayPowerRequest = new DisplayPowerRequest(); 234 235 // True if the display power state has been fully applied, which means the display 236 // is actually on or actually off or whatever was requested. 237 private boolean mDisplayReady; 238 239 // The suspend blocker used to keep the CPU alive when an application has acquired 240 // a wake lock. 241 private final SuspendBlocker mWakeLockSuspendBlocker; 242 243 // True if the wake lock suspend blocker has been acquired. 244 private boolean mHoldingWakeLockSuspendBlocker; 245 246 // The suspend blocker used to keep the CPU alive when the display is on, the 247 // display is getting ready or there is user activity (in which case the display 248 // must be on). 249 private final SuspendBlocker mDisplaySuspendBlocker; 250 251 // True if the display suspend blocker has been acquired. 252 private boolean mHoldingDisplaySuspendBlocker; 253 254 // The screen on blocker used to keep the screen from turning on while the lock 255 // screen is coming up. 256 private final ScreenOnBlockerImpl mScreenOnBlocker; 257 258 // The display blanker used to turn the screen on or off. 259 private final DisplayBlankerImpl mDisplayBlanker; 260 261 // True if systemReady() has been called. 262 private boolean mSystemReady; 263 264 // True if boot completed occurred. We keep the screen on until this happens. 265 private boolean mBootCompleted; 266 267 // True if the device is plugged into a power source. 268 private boolean mIsPowered; 269 270 // The current plug type, such as BatteryManager.BATTERY_PLUGGED_WIRELESS. 271 private int mPlugType; 272 273 // The current battery level percentage. 274 private int mBatteryLevel; 275 276 // The battery level percentage at the time the dream started. 277 // This is used to terminate a dream and go to sleep if the battery is 278 // draining faster than it is charging and the user activity timeout has expired. 279 private int mBatteryLevelWhenDreamStarted; 280 281 // The current dock state. 282 private int mDockState = Intent.EXTRA_DOCK_STATE_UNDOCKED; 283 284 // True if the device should wake up when plugged or unplugged. 285 private boolean mWakeUpWhenPluggedOrUnpluggedConfig; 286 287 // True if the device should suspend when the screen is off due to proximity. 288 private boolean mSuspendWhenScreenOffDueToProximityConfig; 289 290 // True if dreams are supported on this device. 291 private boolean mDreamsSupportedConfig; 292 293 // Default value for dreams enabled 294 private boolean mDreamsEnabledByDefaultConfig; 295 296 // Default value for dreams activate-on-sleep 297 private boolean mDreamsActivatedOnSleepByDefaultConfig; 298 299 // Default value for dreams activate-on-dock 300 private boolean mDreamsActivatedOnDockByDefaultConfig; 301 302 // True if dreams are enabled by the user. 303 private boolean mDreamsEnabledSetting; 304 305 // True if dreams should be activated on sleep. 306 private boolean mDreamsActivateOnSleepSetting; 307 308 // True if dreams should be activated on dock. 309 private boolean mDreamsActivateOnDockSetting; 310 311 // The screen off timeout setting value in milliseconds. 312 private int mScreenOffTimeoutSetting; 313 314 // The maximum allowable screen off timeout according to the device 315 // administration policy. Overrides other settings. 316 private int mMaximumScreenOffTimeoutFromDeviceAdmin = Integer.MAX_VALUE; 317 318 // The stay on while plugged in setting. 319 // A bitfield of battery conditions under which to make the screen stay on. 320 private int mStayOnWhilePluggedInSetting; 321 322 // True if the device should stay on. 323 private boolean mStayOn; 324 325 // True if the proximity sensor reads a positive result. 326 private boolean mProximityPositive; 327 328 // Screen brightness setting limits. 329 private int mScreenBrightnessSettingMinimum; 330 private int mScreenBrightnessSettingMaximum; 331 private int mScreenBrightnessSettingDefault; 332 333 // The screen brightness setting, from 0 to 255. 334 // Use -1 if no value has been set. 335 private int mScreenBrightnessSetting; 336 337 // The screen auto-brightness adjustment setting, from -1 to 1. 338 // Use 0 if there is no adjustment. 339 private float mScreenAutoBrightnessAdjustmentSetting; 340 341 // The screen brightness mode. 342 // One of the Settings.System.SCREEN_BRIGHTNESS_MODE_* constants. 343 private int mScreenBrightnessModeSetting; 344 345 // The screen brightness setting override from the window manager 346 // to allow the current foreground activity to override the brightness. 347 // Use -1 to disable. 348 private int mScreenBrightnessOverrideFromWindowManager = -1; 349 350 // The user activity timeout override from the window manager 351 // to allow the current foreground activity to override the user activity timeout. 352 // Use -1 to disable. 353 private long mUserActivityTimeoutOverrideFromWindowManager = -1; 354 355 // The screen brightness setting override from the settings application 356 // to temporarily adjust the brightness until next updated, 357 // Use -1 to disable. 358 private int mTemporaryScreenBrightnessSettingOverride = -1; 359 360 // The screen brightness adjustment setting override from the settings 361 // application to temporarily adjust the auto-brightness adjustment factor 362 // until next updated, in the range -1..1. 363 // Use NaN to disable. 364 private float mTemporaryScreenAutoBrightnessAdjustmentSettingOverride = Float.NaN; 365 366 // Time when we last logged a warning about calling userActivity() without permission. 367 private long mLastWarningAboutUserActivityPermission = Long.MIN_VALUE; 368 369 private native void nativeInit(); 370 371 private static native void nativeSetPowerState(boolean screenOn, boolean screenBright); 372 private static native void nativeAcquireSuspendBlocker(String name); 373 private static native void nativeReleaseSuspendBlocker(String name); 374 private static native void nativeSetInteractive(boolean enable); 375 private static native void nativeSetAutoSuspend(boolean enable); 376 377 public PowerManagerService() { 378 synchronized (mLock) { 379 mWakeLockSuspendBlocker = createSuspendBlockerLocked("PowerManagerService.WakeLocks"); 380 mDisplaySuspendBlocker = createSuspendBlockerLocked("PowerManagerService.Display"); 381 mDisplaySuspendBlocker.acquire(); 382 mHoldingDisplaySuspendBlocker = true; 383 384 mScreenOnBlocker = new ScreenOnBlockerImpl(); 385 mDisplayBlanker = new DisplayBlankerImpl(); 386 mWakefulness = WAKEFULNESS_AWAKE; 387 } 388 389 nativeInit(); 390 nativeSetPowerState(true, true); 391 } 392 393 /** 394 * Initialize the power manager. 395 * Must be called before any other functions within the power manager are called. 396 */ 397 public void init(Context context, LightsManager ls, 398 BatteryService bs, IBatteryStats bss, 399 IAppOpsService appOps, DisplayManagerService dm) { 400 mContext = context; 401 mLightsManager = ls; 402 mBatteryService = bs; 403 mBatteryStats = bss; 404 mAppOps = appOps; 405 mDisplayManagerService = dm; 406 mHandlerThread = new HandlerThread(TAG); 407 mHandlerThread.start(); 408 mHandler = new PowerManagerHandler(mHandlerThread.getLooper()); 409 410 Watchdog.getInstance().addMonitor(this); 411 Watchdog.getInstance().addThread(mHandler, mHandlerThread.getName()); 412 413 // Forcibly turn the screen on at boot so that it is in a known power state. 414 // We do this in init() rather than in the constructor because setting the 415 // screen state requires a call into surface flinger which then needs to call back 416 // into the activity manager to check permissions. Unfortunately the 417 // activity manager is not running when the constructor is called, so we 418 // have to defer setting the screen state until this point. 419 mDisplayBlanker.unblankAllDisplays(); 420 } 421 422 public void setPolicy(WindowManagerPolicy policy) { 423 synchronized (mLock) { 424 mPolicy = policy; 425 } 426 } 427 428 public void systemReady(TwilightManager twilight, DreamManagerService dreamManager) { 429 synchronized (mLock) { 430 mSystemReady = true; 431 mDreamManager = dreamManager; 432 433 PowerManager pm = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE); 434 mScreenBrightnessSettingMinimum = pm.getMinimumScreenBrightnessSetting(); 435 mScreenBrightnessSettingMaximum = pm.getMaximumScreenBrightnessSetting(); 436 mScreenBrightnessSettingDefault = pm.getDefaultScreenBrightnessSetting(); 437 438 SensorManager sensorManager = new SystemSensorManager(mContext, mHandler.getLooper()); 439 440 // The notifier runs on the system server's main looper so as not to interfere 441 // with the animations and other critical functions of the power manager. 442 mNotifier = new Notifier(Looper.getMainLooper(), mContext, mBatteryStats, 443 mAppOps, createSuspendBlockerLocked("PowerManagerService.Broadcasts"), 444 mScreenOnBlocker, mPolicy); 445 446 // The display power controller runs on the power manager service's 447 // own handler thread to ensure timely operation. 448 mDisplayPowerController = new DisplayPowerController(mHandler.getLooper(), 449 mContext, mNotifier, mLightsManager, twilight, sensorManager, 450 mDisplayManagerService, mDisplaySuspendBlocker, mDisplayBlanker, 451 mDisplayPowerControllerCallbacks, mHandler); 452 453 mWirelessChargerDetector = new WirelessChargerDetector(sensorManager, 454 createSuspendBlockerLocked("PowerManagerService.WirelessChargerDetector"), 455 mHandler); 456 mSettingsObserver = new SettingsObserver(mHandler); 457 mAttentionLight = mLightsManager.getLight(LightsManager.LIGHT_ID_ATTENTION); 458 459 // Register for broadcasts from other components of the system. 460 IntentFilter filter = new IntentFilter(); 461 filter.addAction(Intent.ACTION_BATTERY_CHANGED); 462 mContext.registerReceiver(new BatteryReceiver(), filter, null, mHandler); 463 464 filter = new IntentFilter(); 465 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 466 mContext.registerReceiver(new BootCompletedReceiver(), filter, null, mHandler); 467 468 filter = new IntentFilter(); 469 filter.addAction(Intent.ACTION_DREAMING_STARTED); 470 filter.addAction(Intent.ACTION_DREAMING_STOPPED); 471 mContext.registerReceiver(new DreamReceiver(), filter, null, mHandler); 472 473 filter = new IntentFilter(); 474 filter.addAction(Intent.ACTION_USER_SWITCHED); 475 mContext.registerReceiver(new UserSwitchedReceiver(), filter, null, mHandler); 476 477 filter = new IntentFilter(); 478 filter.addAction(Intent.ACTION_DOCK_EVENT); 479 mContext.registerReceiver(new DockReceiver(), filter, null, mHandler); 480 481 // Register for settings changes. 482 final ContentResolver resolver = mContext.getContentResolver(); 483 resolver.registerContentObserver(Settings.Secure.getUriFor( 484 Settings.Secure.SCREENSAVER_ENABLED), 485 false, mSettingsObserver, UserHandle.USER_ALL); 486 resolver.registerContentObserver(Settings.Secure.getUriFor( 487 Settings.Secure.SCREENSAVER_ACTIVATE_ON_SLEEP), 488 false, mSettingsObserver, UserHandle.USER_ALL); 489 resolver.registerContentObserver(Settings.Secure.getUriFor( 490 Settings.Secure.SCREENSAVER_ACTIVATE_ON_DOCK), 491 false, mSettingsObserver, UserHandle.USER_ALL); 492 resolver.registerContentObserver(Settings.System.getUriFor( 493 Settings.System.SCREEN_OFF_TIMEOUT), 494 false, mSettingsObserver, UserHandle.USER_ALL); 495 resolver.registerContentObserver(Settings.Global.getUriFor( 496 Settings.Global.STAY_ON_WHILE_PLUGGED_IN), 497 false, mSettingsObserver, UserHandle.USER_ALL); 498 resolver.registerContentObserver(Settings.System.getUriFor( 499 Settings.System.SCREEN_BRIGHTNESS), 500 false, mSettingsObserver, UserHandle.USER_ALL); 501 resolver.registerContentObserver(Settings.System.getUriFor( 502 Settings.System.SCREEN_BRIGHTNESS_MODE), 503 false, mSettingsObserver, UserHandle.USER_ALL); 504 505 // Go. 506 readConfigurationLocked(); 507 updateSettingsLocked(); 508 mDirty |= DIRTY_BATTERY_STATE; 509 updatePowerStateLocked(); 510 } 511 } 512 513 private void readConfigurationLocked() { 514 final Resources resources = mContext.getResources(); 515 516 mWakeUpWhenPluggedOrUnpluggedConfig = resources.getBoolean( 517 com.android.internal.R.bool.config_unplugTurnsOnScreen); 518 mSuspendWhenScreenOffDueToProximityConfig = resources.getBoolean( 519 com.android.internal.R.bool.config_suspendWhenScreenOffDueToProximity); 520 mDreamsSupportedConfig = resources.getBoolean( 521 com.android.internal.R.bool.config_dreamsSupported); 522 mDreamsEnabledByDefaultConfig = resources.getBoolean( 523 com.android.internal.R.bool.config_dreamsEnabledByDefault); 524 mDreamsActivatedOnSleepByDefaultConfig = resources.getBoolean( 525 com.android.internal.R.bool.config_dreamsActivatedOnSleepByDefault); 526 mDreamsActivatedOnDockByDefaultConfig = resources.getBoolean( 527 com.android.internal.R.bool.config_dreamsActivatedOnDockByDefault); 528 } 529 530 private void updateSettingsLocked() { 531 final ContentResolver resolver = mContext.getContentResolver(); 532 533 mDreamsEnabledSetting = (Settings.Secure.getIntForUser(resolver, 534 Settings.Secure.SCREENSAVER_ENABLED, 535 mDreamsEnabledByDefaultConfig ? 1 : 0, 536 UserHandle.USER_CURRENT) != 0); 537 mDreamsActivateOnSleepSetting = (Settings.Secure.getIntForUser(resolver, 538 Settings.Secure.SCREENSAVER_ACTIVATE_ON_SLEEP, 539 mDreamsActivatedOnSleepByDefaultConfig ? 1 : 0, 540 UserHandle.USER_CURRENT) != 0); 541 mDreamsActivateOnDockSetting = (Settings.Secure.getIntForUser(resolver, 542 Settings.Secure.SCREENSAVER_ACTIVATE_ON_DOCK, 543 mDreamsActivatedOnDockByDefaultConfig ? 1 : 0, 544 UserHandle.USER_CURRENT) != 0); 545 mScreenOffTimeoutSetting = Settings.System.getIntForUser(resolver, 546 Settings.System.SCREEN_OFF_TIMEOUT, DEFAULT_SCREEN_OFF_TIMEOUT, 547 UserHandle.USER_CURRENT); 548 mStayOnWhilePluggedInSetting = Settings.Global.getInt(resolver, 549 Settings.Global.STAY_ON_WHILE_PLUGGED_IN, BatteryManager.BATTERY_PLUGGED_AC); 550 551 final int oldScreenBrightnessSetting = mScreenBrightnessSetting; 552 mScreenBrightnessSetting = Settings.System.getIntForUser(resolver, 553 Settings.System.SCREEN_BRIGHTNESS, mScreenBrightnessSettingDefault, 554 UserHandle.USER_CURRENT); 555 if (oldScreenBrightnessSetting != mScreenBrightnessSetting) { 556 mTemporaryScreenBrightnessSettingOverride = -1; 557 } 558 559 final float oldScreenAutoBrightnessAdjustmentSetting = 560 mScreenAutoBrightnessAdjustmentSetting; 561 mScreenAutoBrightnessAdjustmentSetting = Settings.System.getFloatForUser(resolver, 562 Settings.System.SCREEN_AUTO_BRIGHTNESS_ADJ, 0.0f, 563 UserHandle.USER_CURRENT); 564 if (oldScreenAutoBrightnessAdjustmentSetting != mScreenAutoBrightnessAdjustmentSetting) { 565 mTemporaryScreenAutoBrightnessAdjustmentSettingOverride = Float.NaN; 566 } 567 568 mScreenBrightnessModeSetting = Settings.System.getIntForUser(resolver, 569 Settings.System.SCREEN_BRIGHTNESS_MODE, 570 Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL, UserHandle.USER_CURRENT); 571 572 mDirty |= DIRTY_SETTINGS; 573 } 574 575 private void handleSettingsChangedLocked() { 576 updateSettingsLocked(); 577 updatePowerStateLocked(); 578 } 579 580 @Override // Binder call 581 public void acquireWakeLockWithUid(IBinder lock, int flags, String tag, String packageName, 582 int uid) { 583 acquireWakeLock(lock, flags, tag, packageName, new WorkSource(uid)); 584 } 585 586 @Override // Binder call 587 public void acquireWakeLock(IBinder lock, int flags, String tag, String packageName, 588 WorkSource ws) { 589 if (lock == null) { 590 throw new IllegalArgumentException("lock must not be null"); 591 } 592 if (packageName == null) { 593 throw new IllegalArgumentException("packageName must not be null"); 594 } 595 PowerManager.validateWakeLockParameters(flags, tag); 596 597 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WAKE_LOCK, null); 598 if (ws != null && ws.size() != 0) { 599 mContext.enforceCallingOrSelfPermission( 600 android.Manifest.permission.UPDATE_DEVICE_STATS, null); 601 } else { 602 ws = null; 603 } 604 605 final int uid = Binder.getCallingUid(); 606 final int pid = Binder.getCallingPid(); 607 final long ident = Binder.clearCallingIdentity(); 608 try { 609 acquireWakeLockInternal(lock, flags, tag, packageName, ws, uid, pid); 610 } finally { 611 Binder.restoreCallingIdentity(ident); 612 } 613 } 614 615 private void acquireWakeLockInternal(IBinder lock, int flags, String tag, String packageName, 616 WorkSource ws, int uid, int pid) { 617 synchronized (mLock) { 618 if (DEBUG_SPEW) { 619 Slog.d(TAG, "acquireWakeLockInternal: lock=" + Objects.hashCode(lock) 620 + ", flags=0x" + Integer.toHexString(flags) 621 + ", tag=\"" + tag + "\", ws=" + ws + ", uid=" + uid + ", pid=" + pid); 622 } 623 624 WakeLock wakeLock; 625 int index = findWakeLockIndexLocked(lock); 626 if (index >= 0) { 627 wakeLock = mWakeLocks.get(index); 628 if (!wakeLock.hasSameProperties(flags, tag, ws, uid, pid)) { 629 // Update existing wake lock. This shouldn't happen but is harmless. 630 notifyWakeLockReleasedLocked(wakeLock); 631 wakeLock.updateProperties(flags, tag, packageName, ws, uid, pid); 632 notifyWakeLockAcquiredLocked(wakeLock); 633 } 634 } else { 635 wakeLock = new WakeLock(lock, flags, tag, packageName, ws, uid, pid); 636 try { 637 lock.linkToDeath(wakeLock, 0); 638 } catch (RemoteException ex) { 639 throw new IllegalArgumentException("Wake lock is already dead."); 640 } 641 notifyWakeLockAcquiredLocked(wakeLock); 642 mWakeLocks.add(wakeLock); 643 } 644 645 applyWakeLockFlagsOnAcquireLocked(wakeLock); 646 mDirty |= DIRTY_WAKE_LOCKS; 647 updatePowerStateLocked(); 648 } 649 } 650 651 @SuppressWarnings("deprecation") 652 private static boolean isScreenLock(final WakeLock wakeLock) { 653 switch (wakeLock.mFlags & PowerManager.WAKE_LOCK_LEVEL_MASK) { 654 case PowerManager.FULL_WAKE_LOCK: 655 case PowerManager.SCREEN_BRIGHT_WAKE_LOCK: 656 case PowerManager.SCREEN_DIM_WAKE_LOCK: 657 return true; 658 } 659 return false; 660 } 661 662 private void applyWakeLockFlagsOnAcquireLocked(WakeLock wakeLock) { 663 if ((wakeLock.mFlags & PowerManager.ACQUIRE_CAUSES_WAKEUP) != 0 664 && isScreenLock(wakeLock)) { 665 wakeUpNoUpdateLocked(SystemClock.uptimeMillis()); 666 } 667 } 668 669 @Override // Binder call 670 public void releaseWakeLock(IBinder lock, int flags) { 671 if (lock == null) { 672 throw new IllegalArgumentException("lock must not be null"); 673 } 674 675 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WAKE_LOCK, null); 676 677 final long ident = Binder.clearCallingIdentity(); 678 try { 679 releaseWakeLockInternal(lock, flags); 680 } finally { 681 Binder.restoreCallingIdentity(ident); 682 } 683 } 684 685 private void releaseWakeLockInternal(IBinder lock, int flags) { 686 synchronized (mLock) { 687 int index = findWakeLockIndexLocked(lock); 688 if (index < 0) { 689 if (DEBUG_SPEW) { 690 Slog.d(TAG, "releaseWakeLockInternal: lock=" + Objects.hashCode(lock) 691 + " [not found], flags=0x" + Integer.toHexString(flags)); 692 } 693 return; 694 } 695 696 WakeLock wakeLock = mWakeLocks.get(index); 697 if (DEBUG_SPEW) { 698 Slog.d(TAG, "releaseWakeLockInternal: lock=" + Objects.hashCode(lock) 699 + " [" + wakeLock.mTag + "], flags=0x" + Integer.toHexString(flags)); 700 } 701 702 mWakeLocks.remove(index); 703 notifyWakeLockReleasedLocked(wakeLock); 704 wakeLock.mLock.unlinkToDeath(wakeLock, 0); 705 706 if ((flags & PowerManager.WAIT_FOR_PROXIMITY_NEGATIVE) != 0) { 707 mRequestWaitForNegativeProximity = true; 708 } 709 710 applyWakeLockFlagsOnReleaseLocked(wakeLock); 711 mDirty |= DIRTY_WAKE_LOCKS; 712 updatePowerStateLocked(); 713 } 714 } 715 716 private void handleWakeLockDeath(WakeLock wakeLock) { 717 synchronized (mLock) { 718 if (DEBUG_SPEW) { 719 Slog.d(TAG, "handleWakeLockDeath: lock=" + Objects.hashCode(wakeLock.mLock) 720 + " [" + wakeLock.mTag + "]"); 721 } 722 723 int index = mWakeLocks.indexOf(wakeLock); 724 if (index < 0) { 725 return; 726 } 727 728 mWakeLocks.remove(index); 729 notifyWakeLockReleasedLocked(wakeLock); 730 731 applyWakeLockFlagsOnReleaseLocked(wakeLock); 732 mDirty |= DIRTY_WAKE_LOCKS; 733 updatePowerStateLocked(); 734 } 735 } 736 737 private void applyWakeLockFlagsOnReleaseLocked(WakeLock wakeLock) { 738 if ((wakeLock.mFlags & PowerManager.ON_AFTER_RELEASE) != 0 739 && isScreenLock(wakeLock)) { 740 userActivityNoUpdateLocked(SystemClock.uptimeMillis(), 741 PowerManager.USER_ACTIVITY_EVENT_OTHER, 742 PowerManager.USER_ACTIVITY_FLAG_NO_CHANGE_LIGHTS, 743 wakeLock.mOwnerUid); 744 } 745 } 746 747 @Override // Binder call 748 public void updateWakeLockUids(IBinder lock, int[] uids) { 749 WorkSource ws = null; 750 751 if (uids != null) { 752 ws = new WorkSource(); 753 // XXX should WorkSource have a way to set uids as an int[] instead of adding them 754 // one at a time? 755 for (int i = 0; i < uids.length; i++) { 756 ws.add(uids[i]); 757 } 758 } 759 updateWakeLockWorkSource(lock, ws); 760 } 761 762 @Override // Binder call 763 public void updateWakeLockWorkSource(IBinder lock, WorkSource ws) { 764 if (lock == null) { 765 throw new IllegalArgumentException("lock must not be null"); 766 } 767 768 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WAKE_LOCK, null); 769 if (ws != null && ws.size() != 0) { 770 mContext.enforceCallingOrSelfPermission( 771 android.Manifest.permission.UPDATE_DEVICE_STATS, null); 772 } else { 773 ws = null; 774 } 775 776 final long ident = Binder.clearCallingIdentity(); 777 try { 778 updateWakeLockWorkSourceInternal(lock, ws); 779 } finally { 780 Binder.restoreCallingIdentity(ident); 781 } 782 } 783 784 private void updateWakeLockWorkSourceInternal(IBinder lock, WorkSource ws) { 785 synchronized (mLock) { 786 int index = findWakeLockIndexLocked(lock); 787 if (index < 0) { 788 if (DEBUG_SPEW) { 789 Slog.d(TAG, "updateWakeLockWorkSourceInternal: lock=" + Objects.hashCode(lock) 790 + " [not found], ws=" + ws); 791 } 792 throw new IllegalArgumentException("Wake lock not active"); 793 } 794 795 WakeLock wakeLock = mWakeLocks.get(index); 796 if (DEBUG_SPEW) { 797 Slog.d(TAG, "updateWakeLockWorkSourceInternal: lock=" + Objects.hashCode(lock) 798 + " [" + wakeLock.mTag + "], ws=" + ws); 799 } 800 801 if (!wakeLock.hasSameWorkSource(ws)) { 802 notifyWakeLockReleasedLocked(wakeLock); 803 wakeLock.updateWorkSource(ws); 804 notifyWakeLockAcquiredLocked(wakeLock); 805 } 806 } 807 } 808 809 private int findWakeLockIndexLocked(IBinder lock) { 810 final int count = mWakeLocks.size(); 811 for (int i = 0; i < count; i++) { 812 if (mWakeLocks.get(i).mLock == lock) { 813 return i; 814 } 815 } 816 return -1; 817 } 818 819 private void notifyWakeLockAcquiredLocked(WakeLock wakeLock) { 820 if (mSystemReady) { 821 wakeLock.mNotifiedAcquired = true; 822 mNotifier.onWakeLockAcquired(wakeLock.mFlags, wakeLock.mTag, wakeLock.mPackageName, 823 wakeLock.mOwnerUid, wakeLock.mOwnerPid, wakeLock.mWorkSource); 824 } 825 } 826 827 private void notifyWakeLockReleasedLocked(WakeLock wakeLock) { 828 if (mSystemReady && wakeLock.mNotifiedAcquired) { 829 wakeLock.mNotifiedAcquired = false; 830 mNotifier.onWakeLockReleased(wakeLock.mFlags, wakeLock.mTag, wakeLock.mPackageName, 831 wakeLock.mOwnerUid, wakeLock.mOwnerPid, wakeLock.mWorkSource); 832 } 833 } 834 835 @Override // Binder call 836 public boolean isWakeLockLevelSupported(int level) { 837 final long ident = Binder.clearCallingIdentity(); 838 try { 839 return isWakeLockLevelSupportedInternal(level); 840 } finally { 841 Binder.restoreCallingIdentity(ident); 842 } 843 } 844 845 @SuppressWarnings("deprecation") 846 private boolean isWakeLockLevelSupportedInternal(int level) { 847 synchronized (mLock) { 848 switch (level) { 849 case PowerManager.PARTIAL_WAKE_LOCK: 850 case PowerManager.SCREEN_DIM_WAKE_LOCK: 851 case PowerManager.SCREEN_BRIGHT_WAKE_LOCK: 852 case PowerManager.FULL_WAKE_LOCK: 853 return true; 854 855 case PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK: 856 return mSystemReady && mDisplayPowerController.isProximitySensorAvailable(); 857 858 default: 859 return false; 860 } 861 } 862 } 863 864 @Override // Binder call 865 public void userActivity(long eventTime, int event, int flags) { 866 final long now = SystemClock.uptimeMillis(); 867 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER) 868 != PackageManager.PERMISSION_GRANTED) { 869 // Once upon a time applications could call userActivity(). 870 // Now we require the DEVICE_POWER permission. Log a warning and ignore the 871 // request instead of throwing a SecurityException so we don't break old apps. 872 synchronized (mLock) { 873 if (now >= mLastWarningAboutUserActivityPermission + (5 * 60 * 1000)) { 874 mLastWarningAboutUserActivityPermission = now; 875 Slog.w(TAG, "Ignoring call to PowerManager.userActivity() because the " 876 + "caller does not have DEVICE_POWER permission. " 877 + "Please fix your app! " 878 + " pid=" + Binder.getCallingPid() 879 + " uid=" + Binder.getCallingUid()); 880 } 881 } 882 return; 883 } 884 885 if (eventTime > SystemClock.uptimeMillis()) { 886 throw new IllegalArgumentException("event time must not be in the future"); 887 } 888 889 final int uid = Binder.getCallingUid(); 890 final long ident = Binder.clearCallingIdentity(); 891 try { 892 userActivityInternal(eventTime, event, flags, uid); 893 } finally { 894 Binder.restoreCallingIdentity(ident); 895 } 896 } 897 898 // Called from native code. 899 private void userActivityFromNative(long eventTime, int event, int flags) { 900 userActivityInternal(eventTime, event, flags, Process.SYSTEM_UID); 901 } 902 903 private void userActivityInternal(long eventTime, int event, int flags, int uid) { 904 synchronized (mLock) { 905 if (userActivityNoUpdateLocked(eventTime, event, flags, uid)) { 906 updatePowerStateLocked(); 907 } 908 } 909 } 910 911 private boolean userActivityNoUpdateLocked(long eventTime, int event, int flags, int uid) { 912 if (DEBUG_SPEW) { 913 Slog.d(TAG, "userActivityNoUpdateLocked: eventTime=" + eventTime 914 + ", event=" + event + ", flags=0x" + Integer.toHexString(flags) 915 + ", uid=" + uid); 916 } 917 918 if (eventTime < mLastSleepTime || eventTime < mLastWakeTime 919 || mWakefulness == WAKEFULNESS_ASLEEP || !mBootCompleted || !mSystemReady) { 920 return false; 921 } 922 923 mNotifier.onUserActivity(event, uid); 924 925 if ((flags & PowerManager.USER_ACTIVITY_FLAG_NO_CHANGE_LIGHTS) != 0) { 926 if (eventTime > mLastUserActivityTimeNoChangeLights 927 && eventTime > mLastUserActivityTime) { 928 mLastUserActivityTimeNoChangeLights = eventTime; 929 mDirty |= DIRTY_USER_ACTIVITY; 930 return true; 931 } 932 } else { 933 if (eventTime > mLastUserActivityTime) { 934 mLastUserActivityTime = eventTime; 935 mDirty |= DIRTY_USER_ACTIVITY; 936 return true; 937 } 938 } 939 return false; 940 } 941 942 @Override // Binder call 943 public void wakeUp(long eventTime) { 944 if (eventTime > SystemClock.uptimeMillis()) { 945 throw new IllegalArgumentException("event time must not be in the future"); 946 } 947 948 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null); 949 950 final long ident = Binder.clearCallingIdentity(); 951 try { 952 wakeUpInternal(eventTime); 953 } finally { 954 Binder.restoreCallingIdentity(ident); 955 } 956 } 957 958 // Called from native code. 959 private void wakeUpFromNative(long eventTime) { 960 wakeUpInternal(eventTime); 961 } 962 963 private void wakeUpInternal(long eventTime) { 964 synchronized (mLock) { 965 if (wakeUpNoUpdateLocked(eventTime)) { 966 updatePowerStateLocked(); 967 } 968 } 969 } 970 971 private boolean wakeUpNoUpdateLocked(long eventTime) { 972 if (DEBUG_SPEW) { 973 Slog.d(TAG, "wakeUpNoUpdateLocked: eventTime=" + eventTime); 974 } 975 976 if (eventTime < mLastSleepTime || mWakefulness == WAKEFULNESS_AWAKE 977 || !mBootCompleted || !mSystemReady) { 978 return false; 979 } 980 981 switch (mWakefulness) { 982 case WAKEFULNESS_ASLEEP: 983 Slog.i(TAG, "Waking up from sleep..."); 984 sendPendingNotificationsLocked(); 985 mNotifier.onWakeUpStarted(); 986 mSendWakeUpFinishedNotificationWhenReady = true; 987 break; 988 case WAKEFULNESS_DREAMING: 989 Slog.i(TAG, "Waking up from dream..."); 990 break; 991 case WAKEFULNESS_NAPPING: 992 Slog.i(TAG, "Waking up from nap..."); 993 break; 994 } 995 996 mLastWakeTime = eventTime; 997 mWakefulness = WAKEFULNESS_AWAKE; 998 mDirty |= DIRTY_WAKEFULNESS; 999 1000 userActivityNoUpdateLocked( 1001 eventTime, PowerManager.USER_ACTIVITY_EVENT_OTHER, 0, Process.SYSTEM_UID); 1002 return true; 1003 } 1004 1005 @Override // Binder call 1006 public void goToSleep(long eventTime, int reason) { 1007 if (eventTime > SystemClock.uptimeMillis()) { 1008 throw new IllegalArgumentException("event time must not be in the future"); 1009 } 1010 1011 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null); 1012 1013 final long ident = Binder.clearCallingIdentity(); 1014 try { 1015 goToSleepInternal(eventTime, reason); 1016 } finally { 1017 Binder.restoreCallingIdentity(ident); 1018 } 1019 } 1020 1021 // Called from native code. 1022 private void goToSleepFromNative(long eventTime, int reason) { 1023 goToSleepInternal(eventTime, reason); 1024 } 1025 1026 private void goToSleepInternal(long eventTime, int reason) { 1027 synchronized (mLock) { 1028 if (goToSleepNoUpdateLocked(eventTime, reason)) { 1029 updatePowerStateLocked(); 1030 } 1031 } 1032 } 1033 1034 @SuppressWarnings("deprecation") 1035 private boolean goToSleepNoUpdateLocked(long eventTime, int reason) { 1036 if (DEBUG_SPEW) { 1037 Slog.d(TAG, "goToSleepNoUpdateLocked: eventTime=" + eventTime + ", reason=" + reason); 1038 } 1039 1040 if (eventTime < mLastWakeTime || mWakefulness == WAKEFULNESS_ASLEEP 1041 || !mBootCompleted || !mSystemReady) { 1042 return false; 1043 } 1044 1045 switch (reason) { 1046 case PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN: 1047 Slog.i(TAG, "Going to sleep due to device administration policy..."); 1048 break; 1049 case PowerManager.GO_TO_SLEEP_REASON_TIMEOUT: 1050 Slog.i(TAG, "Going to sleep due to screen timeout..."); 1051 break; 1052 default: 1053 Slog.i(TAG, "Going to sleep by user request..."); 1054 reason = PowerManager.GO_TO_SLEEP_REASON_USER; 1055 break; 1056 } 1057 1058 sendPendingNotificationsLocked(); 1059 mNotifier.onGoToSleepStarted(reason); 1060 mSendGoToSleepFinishedNotificationWhenReady = true; 1061 1062 mLastSleepTime = eventTime; 1063 mDirty |= DIRTY_WAKEFULNESS; 1064 mWakefulness = WAKEFULNESS_ASLEEP; 1065 1066 // Report the number of wake locks that will be cleared by going to sleep. 1067 int numWakeLocksCleared = 0; 1068 final int numWakeLocks = mWakeLocks.size(); 1069 for (int i = 0; i < numWakeLocks; i++) { 1070 final WakeLock wakeLock = mWakeLocks.get(i); 1071 switch (wakeLock.mFlags & PowerManager.WAKE_LOCK_LEVEL_MASK) { 1072 case PowerManager.FULL_WAKE_LOCK: 1073 case PowerManager.SCREEN_BRIGHT_WAKE_LOCK: 1074 case PowerManager.SCREEN_DIM_WAKE_LOCK: 1075 numWakeLocksCleared += 1; 1076 break; 1077 } 1078 } 1079 EventLog.writeEvent(EventLogTags.POWER_SLEEP_REQUESTED, numWakeLocksCleared); 1080 return true; 1081 } 1082 1083 @Override // Binder call 1084 public void nap(long eventTime) { 1085 if (eventTime > SystemClock.uptimeMillis()) { 1086 throw new IllegalArgumentException("event time must not be in the future"); 1087 } 1088 1089 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null); 1090 1091 final long ident = Binder.clearCallingIdentity(); 1092 try { 1093 napInternal(eventTime); 1094 } finally { 1095 Binder.restoreCallingIdentity(ident); 1096 } 1097 } 1098 1099 private void napInternal(long eventTime) { 1100 synchronized (mLock) { 1101 if (napNoUpdateLocked(eventTime)) { 1102 updatePowerStateLocked(); 1103 } 1104 } 1105 } 1106 1107 private boolean napNoUpdateLocked(long eventTime) { 1108 if (DEBUG_SPEW) { 1109 Slog.d(TAG, "napNoUpdateLocked: eventTime=" + eventTime); 1110 } 1111 1112 if (eventTime < mLastWakeTime || mWakefulness != WAKEFULNESS_AWAKE 1113 || !mBootCompleted || !mSystemReady) { 1114 return false; 1115 } 1116 1117 Slog.i(TAG, "Nap time..."); 1118 1119 mDirty |= DIRTY_WAKEFULNESS; 1120 mWakefulness = WAKEFULNESS_NAPPING; 1121 return true; 1122 } 1123 1124 /** 1125 * Updates the global power state based on dirty bits recorded in mDirty. 1126 * 1127 * This is the main function that performs power state transitions. 1128 * We centralize them here so that we can recompute the power state completely 1129 * each time something important changes, and ensure that we do it the same 1130 * way each time. The point is to gather all of the transition logic here. 1131 */ 1132 private void updatePowerStateLocked() { 1133 if (!mSystemReady || mDirty == 0) { 1134 return; 1135 } 1136 1137 // Phase 0: Basic state updates. 1138 updateIsPoweredLocked(mDirty); 1139 updateStayOnLocked(mDirty); 1140 1141 // Phase 1: Update wakefulness. 1142 // Loop because the wake lock and user activity computations are influenced 1143 // by changes in wakefulness. 1144 final long now = SystemClock.uptimeMillis(); 1145 int dirtyPhase2 = 0; 1146 for (;;) { 1147 int dirtyPhase1 = mDirty; 1148 dirtyPhase2 |= dirtyPhase1; 1149 mDirty = 0; 1150 1151 updateWakeLockSummaryLocked(dirtyPhase1); 1152 updateUserActivitySummaryLocked(now, dirtyPhase1); 1153 if (!updateWakefulnessLocked(dirtyPhase1)) { 1154 break; 1155 } 1156 } 1157 1158 // Phase 2: Update dreams and display power state. 1159 updateDreamLocked(dirtyPhase2); 1160 updateDisplayPowerStateLocked(dirtyPhase2); 1161 1162 // Phase 3: Send notifications, if needed. 1163 if (mDisplayReady) { 1164 sendPendingNotificationsLocked(); 1165 } 1166 1167 // Phase 4: Update suspend blocker. 1168 // Because we might release the last suspend blocker here, we need to make sure 1169 // we finished everything else first! 1170 updateSuspendBlockerLocked(); 1171 } 1172 1173 private void sendPendingNotificationsLocked() { 1174 if (mSendWakeUpFinishedNotificationWhenReady) { 1175 mSendWakeUpFinishedNotificationWhenReady = false; 1176 mNotifier.onWakeUpFinished(); 1177 } 1178 if (mSendGoToSleepFinishedNotificationWhenReady) { 1179 mSendGoToSleepFinishedNotificationWhenReady = false; 1180 mNotifier.onGoToSleepFinished(); 1181 } 1182 } 1183 1184 /** 1185 * Updates the value of mIsPowered. 1186 * Sets DIRTY_IS_POWERED if a change occurred. 1187 */ 1188 private void updateIsPoweredLocked(int dirty) { 1189 if ((dirty & DIRTY_BATTERY_STATE) != 0) { 1190 final boolean wasPowered = mIsPowered; 1191 final int oldPlugType = mPlugType; 1192 mIsPowered = mBatteryService.isPowered(BatteryManager.BATTERY_PLUGGED_ANY); 1193 mPlugType = mBatteryService.getPlugType(); 1194 mBatteryLevel = mBatteryService.getBatteryLevel(); 1195 1196 if (DEBUG) { 1197 Slog.d(TAG, "updateIsPoweredLocked: wasPowered=" + wasPowered 1198 + ", mIsPowered=" + mIsPowered 1199 + ", oldPlugType=" + oldPlugType 1200 + ", mPlugType=" + mPlugType 1201 + ", mBatteryLevel=" + mBatteryLevel); 1202 } 1203 1204 if (wasPowered != mIsPowered || oldPlugType != mPlugType) { 1205 mDirty |= DIRTY_IS_POWERED; 1206 1207 // Update wireless dock detection state. 1208 final boolean dockedOnWirelessCharger = mWirelessChargerDetector.update( 1209 mIsPowered, mPlugType, mBatteryLevel); 1210 1211 // Treat plugging and unplugging the devices as a user activity. 1212 // Users find it disconcerting when they plug or unplug the device 1213 // and it shuts off right away. 1214 // Some devices also wake the device when plugged or unplugged because 1215 // they don't have a charging LED. 1216 final long now = SystemClock.uptimeMillis(); 1217 if (shouldWakeUpWhenPluggedOrUnpluggedLocked(wasPowered, oldPlugType, 1218 dockedOnWirelessCharger)) { 1219 wakeUpNoUpdateLocked(now); 1220 } 1221 userActivityNoUpdateLocked( 1222 now, PowerManager.USER_ACTIVITY_EVENT_OTHER, 0, Process.SYSTEM_UID); 1223 1224 // Tell the notifier whether wireless charging has started so that 1225 // it can provide feedback to the user. 1226 if (dockedOnWirelessCharger) { 1227 mNotifier.onWirelessChargingStarted(); 1228 } 1229 } 1230 } 1231 } 1232 1233 private boolean shouldWakeUpWhenPluggedOrUnpluggedLocked( 1234 boolean wasPowered, int oldPlugType, boolean dockedOnWirelessCharger) { 1235 // Don't wake when powered unless configured to do so. 1236 if (!mWakeUpWhenPluggedOrUnpluggedConfig) { 1237 return false; 1238 } 1239 1240 // Don't wake when undocked from wireless charger. 1241 // See WirelessChargerDetector for justification. 1242 if (wasPowered && !mIsPowered 1243 && oldPlugType == BatteryManager.BATTERY_PLUGGED_WIRELESS) { 1244 return false; 1245 } 1246 1247 // Don't wake when docked on wireless charger unless we are certain of it. 1248 // See WirelessChargerDetector for justification. 1249 if (!wasPowered && mIsPowered 1250 && mPlugType == BatteryManager.BATTERY_PLUGGED_WIRELESS 1251 && !dockedOnWirelessCharger) { 1252 return false; 1253 } 1254 1255 // If already dreaming and becoming powered, then don't wake. 1256 if (mIsPowered && (mWakefulness == WAKEFULNESS_NAPPING 1257 || mWakefulness == WAKEFULNESS_DREAMING)) { 1258 return false; 1259 } 1260 1261 // Otherwise wake up! 1262 return true; 1263 } 1264 1265 /** 1266 * Updates the value of mStayOn. 1267 * Sets DIRTY_STAY_ON if a change occurred. 1268 */ 1269 private void updateStayOnLocked(int dirty) { 1270 if ((dirty & (DIRTY_BATTERY_STATE | DIRTY_SETTINGS)) != 0) { 1271 final boolean wasStayOn = mStayOn; 1272 if (mStayOnWhilePluggedInSetting != 0 1273 && !isMaximumScreenOffTimeoutFromDeviceAdminEnforcedLocked()) { 1274 mStayOn = mBatteryService.isPowered(mStayOnWhilePluggedInSetting); 1275 } else { 1276 mStayOn = false; 1277 } 1278 1279 if (mStayOn != wasStayOn) { 1280 mDirty |= DIRTY_STAY_ON; 1281 } 1282 } 1283 } 1284 1285 /** 1286 * Updates the value of mWakeLockSummary to summarize the state of all active wake locks. 1287 * Note that most wake-locks are ignored when the system is asleep. 1288 * 1289 * This function must have no other side-effects. 1290 */ 1291 @SuppressWarnings("deprecation") 1292 private void updateWakeLockSummaryLocked(int dirty) { 1293 if ((dirty & (DIRTY_WAKE_LOCKS | DIRTY_WAKEFULNESS)) != 0) { 1294 mWakeLockSummary = 0; 1295 1296 final int numWakeLocks = mWakeLocks.size(); 1297 for (int i = 0; i < numWakeLocks; i++) { 1298 final WakeLock wakeLock = mWakeLocks.get(i); 1299 switch (wakeLock.mFlags & PowerManager.WAKE_LOCK_LEVEL_MASK) { 1300 case PowerManager.PARTIAL_WAKE_LOCK: 1301 mWakeLockSummary |= WAKE_LOCK_CPU; 1302 break; 1303 case PowerManager.FULL_WAKE_LOCK: 1304 if (mWakefulness != WAKEFULNESS_ASLEEP) { 1305 mWakeLockSummary |= WAKE_LOCK_CPU 1306 | WAKE_LOCK_SCREEN_BRIGHT | WAKE_LOCK_BUTTON_BRIGHT; 1307 if (mWakefulness == WAKEFULNESS_AWAKE) { 1308 mWakeLockSummary |= WAKE_LOCK_STAY_AWAKE; 1309 } 1310 } 1311 break; 1312 case PowerManager.SCREEN_BRIGHT_WAKE_LOCK: 1313 if (mWakefulness != WAKEFULNESS_ASLEEP) { 1314 mWakeLockSummary |= WAKE_LOCK_CPU | WAKE_LOCK_SCREEN_BRIGHT; 1315 if (mWakefulness == WAKEFULNESS_AWAKE) { 1316 mWakeLockSummary |= WAKE_LOCK_STAY_AWAKE; 1317 } 1318 } 1319 break; 1320 case PowerManager.SCREEN_DIM_WAKE_LOCK: 1321 if (mWakefulness != WAKEFULNESS_ASLEEP) { 1322 mWakeLockSummary |= WAKE_LOCK_CPU | WAKE_LOCK_SCREEN_DIM; 1323 if (mWakefulness == WAKEFULNESS_AWAKE) { 1324 mWakeLockSummary |= WAKE_LOCK_STAY_AWAKE; 1325 } 1326 } 1327 break; 1328 case PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK: 1329 if (mWakefulness != WAKEFULNESS_ASLEEP) { 1330 mWakeLockSummary |= WAKE_LOCK_PROXIMITY_SCREEN_OFF; 1331 } 1332 break; 1333 } 1334 } 1335 1336 if (DEBUG_SPEW) { 1337 Slog.d(TAG, "updateWakeLockSummaryLocked: mWakefulness=" 1338 + wakefulnessToString(mWakefulness) 1339 + ", mWakeLockSummary=0x" + Integer.toHexString(mWakeLockSummary)); 1340 } 1341 } 1342 } 1343 1344 /** 1345 * Updates the value of mUserActivitySummary to summarize the user requested 1346 * state of the system such as whether the screen should be bright or dim. 1347 * Note that user activity is ignored when the system is asleep. 1348 * 1349 * This function must have no other side-effects. 1350 */ 1351 private void updateUserActivitySummaryLocked(long now, int dirty) { 1352 // Update the status of the user activity timeout timer. 1353 if ((dirty & (DIRTY_USER_ACTIVITY | DIRTY_WAKEFULNESS | DIRTY_SETTINGS)) != 0) { 1354 mHandler.removeMessages(MSG_USER_ACTIVITY_TIMEOUT); 1355 1356 long nextTimeout = 0; 1357 if (mWakefulness != WAKEFULNESS_ASLEEP) { 1358 final int screenOffTimeout = getScreenOffTimeoutLocked(); 1359 final int screenDimDuration = getScreenDimDurationLocked(screenOffTimeout); 1360 1361 mUserActivitySummary = 0; 1362 if (mLastUserActivityTime >= mLastWakeTime) { 1363 nextTimeout = mLastUserActivityTime 1364 + screenOffTimeout - screenDimDuration; 1365 if (now < nextTimeout) { 1366 mUserActivitySummary |= USER_ACTIVITY_SCREEN_BRIGHT; 1367 } else { 1368 nextTimeout = mLastUserActivityTime + screenOffTimeout; 1369 if (now < nextTimeout) { 1370 mUserActivitySummary |= USER_ACTIVITY_SCREEN_DIM; 1371 } 1372 } 1373 } 1374 if (mUserActivitySummary == 0 1375 && mLastUserActivityTimeNoChangeLights >= mLastWakeTime) { 1376 nextTimeout = mLastUserActivityTimeNoChangeLights + screenOffTimeout; 1377 if (now < nextTimeout 1378 && mDisplayPowerRequest.screenState 1379 != DisplayPowerRequest.SCREEN_STATE_OFF) { 1380 mUserActivitySummary = mDisplayPowerRequest.screenState 1381 == DisplayPowerRequest.SCREEN_STATE_BRIGHT ? 1382 USER_ACTIVITY_SCREEN_BRIGHT : USER_ACTIVITY_SCREEN_DIM; 1383 } 1384 } 1385 if (mUserActivitySummary != 0) { 1386 Message msg = mHandler.obtainMessage(MSG_USER_ACTIVITY_TIMEOUT); 1387 msg.setAsynchronous(true); 1388 mHandler.sendMessageAtTime(msg, nextTimeout); 1389 } 1390 } else { 1391 mUserActivitySummary = 0; 1392 } 1393 1394 if (DEBUG_SPEW) { 1395 Slog.d(TAG, "updateUserActivitySummaryLocked: mWakefulness=" 1396 + wakefulnessToString(mWakefulness) 1397 + ", mUserActivitySummary=0x" + Integer.toHexString(mUserActivitySummary) 1398 + ", nextTimeout=" + TimeUtils.formatUptime(nextTimeout)); 1399 } 1400 } 1401 } 1402 1403 /** 1404 * Called when a user activity timeout has occurred. 1405 * Simply indicates that something about user activity has changed so that the new 1406 * state can be recomputed when the power state is updated. 1407 * 1408 * This function must have no other side-effects besides setting the dirty 1409 * bit and calling update power state. Wakefulness transitions are handled elsewhere. 1410 */ 1411 private void handleUserActivityTimeout() { // runs on handler thread 1412 synchronized (mLock) { 1413 if (DEBUG_SPEW) { 1414 Slog.d(TAG, "handleUserActivityTimeout"); 1415 } 1416 1417 mDirty |= DIRTY_USER_ACTIVITY; 1418 updatePowerStateLocked(); 1419 } 1420 } 1421 1422 private int getScreenOffTimeoutLocked() { 1423 int timeout = mScreenOffTimeoutSetting; 1424 if (isMaximumScreenOffTimeoutFromDeviceAdminEnforcedLocked()) { 1425 timeout = Math.min(timeout, mMaximumScreenOffTimeoutFromDeviceAdmin); 1426 } 1427 if (mUserActivityTimeoutOverrideFromWindowManager >= 0) { 1428 timeout = (int)Math.min(timeout, mUserActivityTimeoutOverrideFromWindowManager); 1429 } 1430 return Math.max(timeout, MINIMUM_SCREEN_OFF_TIMEOUT); 1431 } 1432 1433 private int getScreenDimDurationLocked(int screenOffTimeout) { 1434 return Math.min(SCREEN_DIM_DURATION, 1435 (int)(screenOffTimeout * MAXIMUM_SCREEN_DIM_RATIO)); 1436 } 1437 1438 /** 1439 * Updates the wakefulness of the device. 1440 * 1441 * This is the function that decides whether the device should start napping 1442 * based on the current wake locks and user activity state. It may modify mDirty 1443 * if the wakefulness changes. 1444 * 1445 * Returns true if the wakefulness changed and we need to restart power state calculation. 1446 */ 1447 private boolean updateWakefulnessLocked(int dirty) { 1448 boolean changed = false; 1449 if ((dirty & (DIRTY_WAKE_LOCKS | DIRTY_USER_ACTIVITY | DIRTY_BOOT_COMPLETED 1450 | DIRTY_WAKEFULNESS | DIRTY_STAY_ON | DIRTY_PROXIMITY_POSITIVE 1451 | DIRTY_DOCK_STATE)) != 0) { 1452 if (mWakefulness == WAKEFULNESS_AWAKE && isItBedTimeYetLocked()) { 1453 if (DEBUG_SPEW) { 1454 Slog.d(TAG, "updateWakefulnessLocked: Bed time..."); 1455 } 1456 final long time = SystemClock.uptimeMillis(); 1457 if (shouldNapAtBedTimeLocked()) { 1458 changed = napNoUpdateLocked(time); 1459 } else { 1460 changed = goToSleepNoUpdateLocked(time, 1461 PowerManager.GO_TO_SLEEP_REASON_TIMEOUT); 1462 } 1463 } 1464 } 1465 return changed; 1466 } 1467 1468 /** 1469 * Returns true if the device should automatically nap and start dreaming when the user 1470 * activity timeout has expired and it's bedtime. 1471 */ 1472 private boolean shouldNapAtBedTimeLocked() { 1473 return mDreamsActivateOnSleepSetting 1474 || (mDreamsActivateOnDockSetting 1475 && mDockState != Intent.EXTRA_DOCK_STATE_UNDOCKED); 1476 } 1477 1478 /** 1479 * Returns true if the device should go to sleep now. 1480 * Also used when exiting a dream to determine whether we should go back 1481 * to being fully awake or else go to sleep for good. 1482 */ 1483 private boolean isItBedTimeYetLocked() { 1484 return mBootCompleted && !isBeingKeptAwakeLocked(); 1485 } 1486 1487 /** 1488 * Returns true if the device is being kept awake by a wake lock, user activity 1489 * or the stay on while powered setting. We also keep the phone awake when 1490 * the proximity sensor returns a positive result so that the device does not 1491 * lock while in a phone call. This function only controls whether the device 1492 * will go to sleep or dream which is independent of whether it will be allowed 1493 * to suspend. 1494 */ 1495 private boolean isBeingKeptAwakeLocked() { 1496 return mStayOn 1497 || mProximityPositive 1498 || (mWakeLockSummary & WAKE_LOCK_STAY_AWAKE) != 0 1499 || (mUserActivitySummary & (USER_ACTIVITY_SCREEN_BRIGHT 1500 | USER_ACTIVITY_SCREEN_DIM)) != 0; 1501 } 1502 1503 /** 1504 * Determines whether to post a message to the sandman to update the dream state. 1505 */ 1506 private void updateDreamLocked(int dirty) { 1507 if ((dirty & (DIRTY_WAKEFULNESS 1508 | DIRTY_USER_ACTIVITY 1509 | DIRTY_WAKE_LOCKS 1510 | DIRTY_BOOT_COMPLETED 1511 | DIRTY_SETTINGS 1512 | DIRTY_IS_POWERED 1513 | DIRTY_STAY_ON 1514 | DIRTY_PROXIMITY_POSITIVE 1515 | DIRTY_BATTERY_STATE)) != 0) { 1516 scheduleSandmanLocked(); 1517 } 1518 } 1519 1520 private void scheduleSandmanLocked() { 1521 if (!mSandmanScheduled) { 1522 mSandmanScheduled = true; 1523 Message msg = mHandler.obtainMessage(MSG_SANDMAN); 1524 msg.setAsynchronous(true); 1525 mHandler.sendMessage(msg); 1526 } 1527 } 1528 1529 /** 1530 * Called when the device enters or exits a napping or dreaming state. 1531 * 1532 * We do this asynchronously because we must call out of the power manager to start 1533 * the dream and we don't want to hold our lock while doing so. There is a risk that 1534 * the device will wake or go to sleep in the meantime so we have to handle that case. 1535 */ 1536 private void handleSandman() { // runs on handler thread 1537 // Handle preconditions. 1538 boolean startDreaming = false; 1539 synchronized (mLock) { 1540 mSandmanScheduled = false; 1541 boolean canDream = canDreamLocked(); 1542 if (DEBUG_SPEW) { 1543 Slog.d(TAG, "handleSandman: canDream=" + canDream 1544 + ", mWakefulness=" + wakefulnessToString(mWakefulness)); 1545 } 1546 1547 if (canDream && mWakefulness == WAKEFULNESS_NAPPING) { 1548 startDreaming = true; 1549 } 1550 } 1551 1552 // Start dreaming if needed. 1553 // We only control the dream on the handler thread, so we don't need to worry about 1554 // concurrent attempts to start or stop the dream. 1555 boolean isDreaming = false; 1556 if (mDreamManager != null) { 1557 if (startDreaming) { 1558 mDreamManager.startDream(); 1559 } 1560 isDreaming = mDreamManager.isDreaming(); 1561 } 1562 1563 // Update dream state. 1564 // We might need to stop the dream again if the preconditions changed. 1565 boolean continueDreaming = false; 1566 synchronized (mLock) { 1567 if (isDreaming && canDreamLocked()) { 1568 if (mWakefulness == WAKEFULNESS_NAPPING) { 1569 mWakefulness = WAKEFULNESS_DREAMING; 1570 mDirty |= DIRTY_WAKEFULNESS; 1571 mBatteryLevelWhenDreamStarted = mBatteryLevel; 1572 updatePowerStateLocked(); 1573 continueDreaming = true; 1574 } else if (mWakefulness == WAKEFULNESS_DREAMING) { 1575 if (!isBeingKeptAwakeLocked() 1576 && mBatteryLevel < mBatteryLevelWhenDreamStarted 1577 - DREAM_BATTERY_LEVEL_DRAIN_CUTOFF) { 1578 // If the user activity timeout expired and the battery appears 1579 // to be draining faster than it is charging then stop dreaming 1580 // and go to sleep. 1581 Slog.i(TAG, "Stopping dream because the battery appears to " 1582 + "be draining faster than it is charging. " 1583 + "Battery level when dream started: " 1584 + mBatteryLevelWhenDreamStarted + "%. " 1585 + "Battery level now: " + mBatteryLevel + "%."); 1586 } else { 1587 continueDreaming = true; 1588 } 1589 } 1590 } 1591 if (!continueDreaming) { 1592 handleDreamFinishedLocked(); 1593 } 1594 } 1595 1596 // Stop dreaming if needed. 1597 // It's possible that something else changed to make us need to start the dream again. 1598 // If so, then the power manager will have posted another message to the handler 1599 // to take care of it later. 1600 if (mDreamManager != null) { 1601 if (!continueDreaming) { 1602 mDreamManager.stopDream(); 1603 } 1604 } 1605 } 1606 1607 /** 1608 * Returns true if the device is allowed to dream in its current state 1609 * assuming that it is currently napping or dreaming. 1610 */ 1611 private boolean canDreamLocked() { 1612 return mDreamsSupportedConfig 1613 && mDreamsEnabledSetting 1614 && mDisplayPowerRequest.screenState != DisplayPowerRequest.SCREEN_STATE_OFF 1615 && mBootCompleted 1616 && (mIsPowered || isBeingKeptAwakeLocked()); 1617 } 1618 1619 /** 1620 * Called when a dream is ending to figure out what to do next. 1621 */ 1622 private void handleDreamFinishedLocked() { 1623 if (mWakefulness == WAKEFULNESS_NAPPING 1624 || mWakefulness == WAKEFULNESS_DREAMING) { 1625 if (isItBedTimeYetLocked()) { 1626 goToSleepNoUpdateLocked(SystemClock.uptimeMillis(), 1627 PowerManager.GO_TO_SLEEP_REASON_TIMEOUT); 1628 updatePowerStateLocked(); 1629 } else { 1630 wakeUpNoUpdateLocked(SystemClock.uptimeMillis()); 1631 updatePowerStateLocked(); 1632 } 1633 } 1634 } 1635 1636 private void handleScreenOnBlockerReleased() { 1637 synchronized (mLock) { 1638 mDirty |= DIRTY_SCREEN_ON_BLOCKER_RELEASED; 1639 updatePowerStateLocked(); 1640 } 1641 } 1642 1643 /** 1644 * Updates the display power state asynchronously. 1645 * When the update is finished, mDisplayReady will be set to true. The display 1646 * controller posts a message to tell us when the actual display power state 1647 * has been updated so we come back here to double-check and finish up. 1648 * 1649 * This function recalculates the display power state each time. 1650 */ 1651 private void updateDisplayPowerStateLocked(int dirty) { 1652 if ((dirty & (DIRTY_WAKE_LOCKS | DIRTY_USER_ACTIVITY | DIRTY_WAKEFULNESS 1653 | DIRTY_ACTUAL_DISPLAY_POWER_STATE_UPDATED | DIRTY_BOOT_COMPLETED 1654 | DIRTY_SETTINGS | DIRTY_SCREEN_ON_BLOCKER_RELEASED)) != 0) { 1655 int newScreenState = getDesiredScreenPowerStateLocked(); 1656 if (newScreenState != mDisplayPowerRequest.screenState) { 1657 mDisplayPowerRequest.screenState = newScreenState; 1658 nativeSetPowerState( 1659 newScreenState != DisplayPowerRequest.SCREEN_STATE_OFF, 1660 newScreenState == DisplayPowerRequest.SCREEN_STATE_BRIGHT); 1661 } 1662 1663 int screenBrightness = mScreenBrightnessSettingDefault; 1664 float screenAutoBrightnessAdjustment = 0.0f; 1665 boolean autoBrightness = (mScreenBrightnessModeSetting == 1666 Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC); 1667 if (isValidBrightness(mScreenBrightnessOverrideFromWindowManager)) { 1668 screenBrightness = mScreenBrightnessOverrideFromWindowManager; 1669 autoBrightness = false; 1670 } else if (isValidBrightness(mTemporaryScreenBrightnessSettingOverride)) { 1671 screenBrightness = mTemporaryScreenBrightnessSettingOverride; 1672 } else if (isValidBrightness(mScreenBrightnessSetting)) { 1673 screenBrightness = mScreenBrightnessSetting; 1674 } 1675 if (autoBrightness) { 1676 screenBrightness = mScreenBrightnessSettingDefault; 1677 if (isValidAutoBrightnessAdjustment( 1678 mTemporaryScreenAutoBrightnessAdjustmentSettingOverride)) { 1679 screenAutoBrightnessAdjustment = 1680 mTemporaryScreenAutoBrightnessAdjustmentSettingOverride; 1681 } else if (isValidAutoBrightnessAdjustment( 1682 mScreenAutoBrightnessAdjustmentSetting)) { 1683 screenAutoBrightnessAdjustment = mScreenAutoBrightnessAdjustmentSetting; 1684 } 1685 } 1686 screenBrightness = Math.max(Math.min(screenBrightness, 1687 mScreenBrightnessSettingMaximum), mScreenBrightnessSettingMinimum); 1688 screenAutoBrightnessAdjustment = Math.max(Math.min( 1689 screenAutoBrightnessAdjustment, 1.0f), -1.0f); 1690 mDisplayPowerRequest.screenBrightness = screenBrightness; 1691 mDisplayPowerRequest.screenAutoBrightnessAdjustment = 1692 screenAutoBrightnessAdjustment; 1693 mDisplayPowerRequest.useAutoBrightness = autoBrightness; 1694 1695 mDisplayPowerRequest.useProximitySensor = shouldUseProximitySensorLocked(); 1696 1697 mDisplayPowerRequest.blockScreenOn = mScreenOnBlocker.isHeld(); 1698 1699 mDisplayReady = mDisplayPowerController.requestPowerState(mDisplayPowerRequest, 1700 mRequestWaitForNegativeProximity); 1701 mRequestWaitForNegativeProximity = false; 1702 1703 if (DEBUG_SPEW) { 1704 Slog.d(TAG, "updateScreenStateLocked: mDisplayReady=" + mDisplayReady 1705 + ", newScreenState=" + newScreenState 1706 + ", mWakefulness=" + mWakefulness 1707 + ", mWakeLockSummary=0x" + Integer.toHexString(mWakeLockSummary) 1708 + ", mUserActivitySummary=0x" + Integer.toHexString(mUserActivitySummary) 1709 + ", mBootCompleted=" + mBootCompleted); 1710 } 1711 } 1712 } 1713 1714 private static boolean isValidBrightness(int value) { 1715 return value >= 0 && value <= 255; 1716 } 1717 1718 private static boolean isValidAutoBrightnessAdjustment(float value) { 1719 // Handles NaN by always returning false. 1720 return value >= -1.0f && value <= 1.0f; 1721 } 1722 1723 private int getDesiredScreenPowerStateLocked() { 1724 if (mWakefulness == WAKEFULNESS_ASLEEP) { 1725 return DisplayPowerRequest.SCREEN_STATE_OFF; 1726 } 1727 1728 if ((mWakeLockSummary & WAKE_LOCK_SCREEN_BRIGHT) != 0 1729 || (mUserActivitySummary & USER_ACTIVITY_SCREEN_BRIGHT) != 0 1730 || !mBootCompleted) { 1731 return DisplayPowerRequest.SCREEN_STATE_BRIGHT; 1732 } 1733 1734 return DisplayPowerRequest.SCREEN_STATE_DIM; 1735 } 1736 1737 private final DisplayPowerController.Callbacks mDisplayPowerControllerCallbacks = 1738 new DisplayPowerController.Callbacks() { 1739 @Override 1740 public void onStateChanged() { 1741 synchronized (mLock) { 1742 mDirty |= DIRTY_ACTUAL_DISPLAY_POWER_STATE_UPDATED; 1743 updatePowerStateLocked(); 1744 } 1745 } 1746 1747 @Override 1748 public void onProximityPositive() { 1749 synchronized (mLock) { 1750 mProximityPositive = true; 1751 mDirty |= DIRTY_PROXIMITY_POSITIVE; 1752 updatePowerStateLocked(); 1753 } 1754 } 1755 1756 @Override 1757 public void onProximityNegative() { 1758 synchronized (mLock) { 1759 mProximityPositive = false; 1760 mDirty |= DIRTY_PROXIMITY_POSITIVE; 1761 userActivityNoUpdateLocked(SystemClock.uptimeMillis(), 1762 PowerManager.USER_ACTIVITY_EVENT_OTHER, 0, Process.SYSTEM_UID); 1763 updatePowerStateLocked(); 1764 } 1765 } 1766 }; 1767 1768 private boolean shouldUseProximitySensorLocked() { 1769 return (mWakeLockSummary & WAKE_LOCK_PROXIMITY_SCREEN_OFF) != 0; 1770 } 1771 1772 /** 1773 * Updates the suspend blocker that keeps the CPU alive. 1774 * 1775 * This function must have no other side-effects. 1776 */ 1777 private void updateSuspendBlockerLocked() { 1778 final boolean needWakeLockSuspendBlocker = ((mWakeLockSummary & WAKE_LOCK_CPU) != 0); 1779 final boolean needDisplaySuspendBlocker = needDisplaySuspendBlocker(); 1780 1781 // First acquire suspend blockers if needed. 1782 if (needWakeLockSuspendBlocker && !mHoldingWakeLockSuspendBlocker) { 1783 mWakeLockSuspendBlocker.acquire(); 1784 mHoldingWakeLockSuspendBlocker = true; 1785 } 1786 if (needDisplaySuspendBlocker && !mHoldingDisplaySuspendBlocker) { 1787 mDisplaySuspendBlocker.acquire(); 1788 mHoldingDisplaySuspendBlocker = true; 1789 } 1790 1791 // Then release suspend blockers if needed. 1792 if (!needWakeLockSuspendBlocker && mHoldingWakeLockSuspendBlocker) { 1793 mWakeLockSuspendBlocker.release(); 1794 mHoldingWakeLockSuspendBlocker = false; 1795 } 1796 if (!needDisplaySuspendBlocker && mHoldingDisplaySuspendBlocker) { 1797 mDisplaySuspendBlocker.release(); 1798 mHoldingDisplaySuspendBlocker = false; 1799 } 1800 } 1801 1802 /** 1803 * Return true if we must keep a suspend blocker active on behalf of the display. 1804 * We do so if the screen is on or is in transition between states. 1805 */ 1806 private boolean needDisplaySuspendBlocker() { 1807 if (!mDisplayReady) { 1808 return true; 1809 } 1810 if (mDisplayPowerRequest.screenState != DisplayPowerRequest.SCREEN_STATE_OFF) { 1811 // If we asked for the screen to be on but it is off due to the proximity 1812 // sensor then we may suspend but only if the configuration allows it. 1813 // On some hardware it may not be safe to suspend because the proximity 1814 // sensor may not be correctly configured as a wake-up source. 1815 if (!mDisplayPowerRequest.useProximitySensor || !mProximityPositive 1816 || !mSuspendWhenScreenOffDueToProximityConfig) { 1817 return true; 1818 } 1819 } 1820 return false; 1821 } 1822 1823 @Override // Binder call 1824 public boolean isScreenOn() { 1825 final long ident = Binder.clearCallingIdentity(); 1826 try { 1827 return isScreenOnInternal(); 1828 } finally { 1829 Binder.restoreCallingIdentity(ident); 1830 } 1831 } 1832 1833 private boolean isScreenOnInternal() { 1834 synchronized (mLock) { 1835 return !mSystemReady 1836 || mDisplayPowerRequest.screenState != DisplayPowerRequest.SCREEN_STATE_OFF; 1837 } 1838 } 1839 1840 private void handleBatteryStateChangedLocked() { 1841 mDirty |= DIRTY_BATTERY_STATE; 1842 updatePowerStateLocked(); 1843 } 1844 1845 private void startWatchingForBootAnimationFinished() { 1846 mHandler.sendEmptyMessage(MSG_CHECK_IF_BOOT_ANIMATION_FINISHED); 1847 } 1848 1849 private void checkIfBootAnimationFinished() { 1850 if (DEBUG) { 1851 Slog.d(TAG, "Check if boot animation finished..."); 1852 } 1853 1854 if (SystemService.isRunning(BOOT_ANIMATION_SERVICE)) { 1855 mHandler.sendEmptyMessageDelayed(MSG_CHECK_IF_BOOT_ANIMATION_FINISHED, 1856 BOOT_ANIMATION_POLL_INTERVAL); 1857 return; 1858 } 1859 1860 synchronized (mLock) { 1861 if (!mBootCompleted) { 1862 Slog.i(TAG, "Boot animation finished."); 1863 handleBootCompletedLocked(); 1864 } 1865 } 1866 } 1867 1868 private void handleBootCompletedLocked() { 1869 final long now = SystemClock.uptimeMillis(); 1870 mBootCompleted = true; 1871 mDirty |= DIRTY_BOOT_COMPLETED; 1872 userActivityNoUpdateLocked( 1873 now, PowerManager.USER_ACTIVITY_EVENT_OTHER, 0, Process.SYSTEM_UID); 1874 updatePowerStateLocked(); 1875 } 1876 1877 /** 1878 * Reboots the device. 1879 * 1880 * @param confirm If true, shows a reboot confirmation dialog. 1881 * @param reason The reason for the reboot, or null if none. 1882 * @param wait If true, this call waits for the reboot to complete and does not return. 1883 */ 1884 @Override // Binder call 1885 public void reboot(boolean confirm, String reason, boolean wait) { 1886 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.REBOOT, null); 1887 1888 final long ident = Binder.clearCallingIdentity(); 1889 try { 1890 shutdownOrRebootInternal(false, confirm, reason, wait); 1891 } finally { 1892 Binder.restoreCallingIdentity(ident); 1893 } 1894 } 1895 1896 /** 1897 * Shuts down the device. 1898 * 1899 * @param confirm If true, shows a shutdown confirmation dialog. 1900 * @param wait If true, this call waits for the shutdown to complete and does not return. 1901 */ 1902 @Override // Binder call 1903 public void shutdown(boolean confirm, boolean wait) { 1904 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.REBOOT, null); 1905 1906 final long ident = Binder.clearCallingIdentity(); 1907 try { 1908 shutdownOrRebootInternal(true, confirm, null, wait); 1909 } finally { 1910 Binder.restoreCallingIdentity(ident); 1911 } 1912 } 1913 1914 private void shutdownOrRebootInternal(final boolean shutdown, final boolean confirm, 1915 final String reason, boolean wait) { 1916 if (mHandler == null || !mSystemReady) { 1917 throw new IllegalStateException("Too early to call shutdown() or reboot()"); 1918 } 1919 1920 Runnable runnable = new Runnable() { 1921 @Override 1922 public void run() { 1923 synchronized (this) { 1924 if (shutdown) { 1925 ShutdownThread.shutdown(mContext, confirm); 1926 } else { 1927 ShutdownThread.reboot(mContext, reason, confirm); 1928 } 1929 } 1930 } 1931 }; 1932 1933 // ShutdownThread must run on a looper capable of displaying the UI. 1934 Message msg = Message.obtain(mHandler, runnable); 1935 msg.setAsynchronous(true); 1936 mHandler.sendMessage(msg); 1937 1938 // PowerManager.reboot() is documented not to return so just wait for the inevitable. 1939 if (wait) { 1940 synchronized (runnable) { 1941 while (true) { 1942 try { 1943 runnable.wait(); 1944 } catch (InterruptedException e) { 1945 } 1946 } 1947 } 1948 } 1949 } 1950 1951 /** 1952 * Crash the runtime (causing a complete restart of the Android framework). 1953 * Requires REBOOT permission. Mostly for testing. Should not return. 1954 */ 1955 @Override // Binder call 1956 public void crash(String message) { 1957 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.REBOOT, null); 1958 1959 final long ident = Binder.clearCallingIdentity(); 1960 try { 1961 crashInternal(message); 1962 } finally { 1963 Binder.restoreCallingIdentity(ident); 1964 } 1965 } 1966 1967 private void crashInternal(final String message) { 1968 Thread t = new Thread("PowerManagerService.crash()") { 1969 @Override 1970 public void run() { 1971 throw new RuntimeException(message); 1972 } 1973 }; 1974 try { 1975 t.start(); 1976 t.join(); 1977 } catch (InterruptedException e) { 1978 Log.wtf(TAG, e); 1979 } 1980 } 1981 1982 /** 1983 * Set the setting that determines whether the device stays on when plugged in. 1984 * The argument is a bit string, with each bit specifying a power source that, 1985 * when the device is connected to that source, causes the device to stay on. 1986 * See {@link android.os.BatteryManager} for the list of power sources that 1987 * can be specified. Current values include {@link android.os.BatteryManager#BATTERY_PLUGGED_AC} 1988 * and {@link android.os.BatteryManager#BATTERY_PLUGGED_USB} 1989 * 1990 * Used by "adb shell svc power stayon ..." 1991 * 1992 * @param val an {@code int} containing the bits that specify which power sources 1993 * should cause the device to stay on. 1994 */ 1995 @Override // Binder call 1996 public void setStayOnSetting(int val) { 1997 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WRITE_SETTINGS, null); 1998 1999 final long ident = Binder.clearCallingIdentity(); 2000 try { 2001 setStayOnSettingInternal(val); 2002 } finally { 2003 Binder.restoreCallingIdentity(ident); 2004 } 2005 } 2006 2007 private void setStayOnSettingInternal(int val) { 2008 Settings.Global.putInt(mContext.getContentResolver(), 2009 Settings.Global.STAY_ON_WHILE_PLUGGED_IN, val); 2010 } 2011 2012 /** 2013 * Used by device administration to set the maximum screen off timeout. 2014 * 2015 * This method must only be called by the device administration policy manager. 2016 */ 2017 @Override // Binder call 2018 public void setMaximumScreenOffTimeoutFromDeviceAdmin(int timeMs) { 2019 final long ident = Binder.clearCallingIdentity(); 2020 try { 2021 setMaximumScreenOffTimeoutFromDeviceAdminInternal(timeMs); 2022 } finally { 2023 Binder.restoreCallingIdentity(ident); 2024 } 2025 } 2026 2027 private void setMaximumScreenOffTimeoutFromDeviceAdminInternal(int timeMs) { 2028 synchronized (mLock) { 2029 mMaximumScreenOffTimeoutFromDeviceAdmin = timeMs; 2030 mDirty |= DIRTY_SETTINGS; 2031 updatePowerStateLocked(); 2032 } 2033 } 2034 2035 private boolean isMaximumScreenOffTimeoutFromDeviceAdminEnforcedLocked() { 2036 return mMaximumScreenOffTimeoutFromDeviceAdmin >= 0 2037 && mMaximumScreenOffTimeoutFromDeviceAdmin < Integer.MAX_VALUE; 2038 } 2039 2040 /** 2041 * Used by the phone application to make the attention LED flash when ringing. 2042 */ 2043 @Override // Binder call 2044 public void setAttentionLight(boolean on, int color) { 2045 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null); 2046 2047 final long ident = Binder.clearCallingIdentity(); 2048 try { 2049 setAttentionLightInternal(on, color); 2050 } finally { 2051 Binder.restoreCallingIdentity(ident); 2052 } 2053 } 2054 2055 private void setAttentionLightInternal(boolean on, int color) { 2056 Light light; 2057 synchronized (mLock) { 2058 if (!mSystemReady) { 2059 return; 2060 } 2061 light = mAttentionLight; 2062 } 2063 2064 // Control light outside of lock. 2065 light.setFlashing(color, Light.LIGHT_FLASH_HARDWARE, (on ? 3 : 0), 0); 2066 } 2067 2068 /** 2069 * Used by the window manager to override the screen brightness based on the 2070 * current foreground activity. 2071 * 2072 * This method must only be called by the window manager. 2073 * 2074 * @param brightness The overridden brightness, or -1 to disable the override. 2075 */ 2076 public void setScreenBrightnessOverrideFromWindowManager(int brightness) { 2077 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null); 2078 2079 final long ident = Binder.clearCallingIdentity(); 2080 try { 2081 setScreenBrightnessOverrideFromWindowManagerInternal(brightness); 2082 } finally { 2083 Binder.restoreCallingIdentity(ident); 2084 } 2085 } 2086 2087 private void setScreenBrightnessOverrideFromWindowManagerInternal(int brightness) { 2088 synchronized (mLock) { 2089 if (mScreenBrightnessOverrideFromWindowManager != brightness) { 2090 mScreenBrightnessOverrideFromWindowManager = brightness; 2091 mDirty |= DIRTY_SETTINGS; 2092 updatePowerStateLocked(); 2093 } 2094 } 2095 } 2096 2097 /** 2098 * Used by the window manager to override the button brightness based on the 2099 * current foreground activity. 2100 * 2101 * This method must only be called by the window manager. 2102 * 2103 * @param brightness The overridden brightness, or -1 to disable the override. 2104 */ 2105 public void setButtonBrightnessOverrideFromWindowManager(int brightness) { 2106 // Do nothing. 2107 // Button lights are not currently supported in the new implementation. 2108 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null); 2109 } 2110 2111 /** 2112 * Used by the window manager to override the user activity timeout based on the 2113 * current foreground activity. It can only be used to make the timeout shorter 2114 * than usual, not longer. 2115 * 2116 * This method must only be called by the window manager. 2117 * 2118 * @param timeoutMillis The overridden timeout, or -1 to disable the override. 2119 */ 2120 public void setUserActivityTimeoutOverrideFromWindowManager(long timeoutMillis) { 2121 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null); 2122 2123 final long ident = Binder.clearCallingIdentity(); 2124 try { 2125 setUserActivityTimeoutOverrideFromWindowManagerInternal(timeoutMillis); 2126 } finally { 2127 Binder.restoreCallingIdentity(ident); 2128 } 2129 } 2130 2131 private void setUserActivityTimeoutOverrideFromWindowManagerInternal(long timeoutMillis) { 2132 synchronized (mLock) { 2133 if (mUserActivityTimeoutOverrideFromWindowManager != timeoutMillis) { 2134 mUserActivityTimeoutOverrideFromWindowManager = timeoutMillis; 2135 mDirty |= DIRTY_SETTINGS; 2136 updatePowerStateLocked(); 2137 } 2138 } 2139 } 2140 2141 /** 2142 * Used by the settings application and brightness control widgets to 2143 * temporarily override the current screen brightness setting so that the 2144 * user can observe the effect of an intended settings change without applying 2145 * it immediately. 2146 * 2147 * The override will be canceled when the setting value is next updated. 2148 * 2149 * @param brightness The overridden brightness. 2150 * 2151 * @see android.provider.Settings.System#SCREEN_BRIGHTNESS 2152 */ 2153 @Override // Binder call 2154 public void setTemporaryScreenBrightnessSettingOverride(int brightness) { 2155 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null); 2156 2157 final long ident = Binder.clearCallingIdentity(); 2158 try { 2159 setTemporaryScreenBrightnessSettingOverrideInternal(brightness); 2160 } finally { 2161 Binder.restoreCallingIdentity(ident); 2162 } 2163 } 2164 2165 private void setTemporaryScreenBrightnessSettingOverrideInternal(int brightness) { 2166 synchronized (mLock) { 2167 if (mTemporaryScreenBrightnessSettingOverride != brightness) { 2168 mTemporaryScreenBrightnessSettingOverride = brightness; 2169 mDirty |= DIRTY_SETTINGS; 2170 updatePowerStateLocked(); 2171 } 2172 } 2173 } 2174 2175 /** 2176 * Used by the settings application and brightness control widgets to 2177 * temporarily override the current screen auto-brightness adjustment setting so that the 2178 * user can observe the effect of an intended settings change without applying 2179 * it immediately. 2180 * 2181 * The override will be canceled when the setting value is next updated. 2182 * 2183 * @param adj The overridden brightness, or Float.NaN to disable the override. 2184 * 2185 * @see Settings.System#SCREEN_AUTO_BRIGHTNESS_ADJ 2186 */ 2187 @Override // Binder call 2188 public void setTemporaryScreenAutoBrightnessAdjustmentSettingOverride(float adj) { 2189 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null); 2190 2191 final long ident = Binder.clearCallingIdentity(); 2192 try { 2193 setTemporaryScreenAutoBrightnessAdjustmentSettingOverrideInternal(adj); 2194 } finally { 2195 Binder.restoreCallingIdentity(ident); 2196 } 2197 } 2198 2199 private void setTemporaryScreenAutoBrightnessAdjustmentSettingOverrideInternal(float adj) { 2200 synchronized (mLock) { 2201 // Note: This condition handles NaN because NaN is not equal to any other 2202 // value, including itself. 2203 if (mTemporaryScreenAutoBrightnessAdjustmentSettingOverride != adj) { 2204 mTemporaryScreenAutoBrightnessAdjustmentSettingOverride = adj; 2205 mDirty |= DIRTY_SETTINGS; 2206 updatePowerStateLocked(); 2207 } 2208 } 2209 } 2210 2211 /** 2212 * Low-level function turn the device off immediately, without trying 2213 * to be clean. Most people should use {@link ShutdownThread} for a clean shutdown. 2214 */ 2215 public static void lowLevelShutdown() { 2216 SystemProperties.set("sys.powerctl", "shutdown"); 2217 } 2218 2219 /** 2220 * Low-level function to reboot the device. On success, this function 2221 * doesn't return. If more than 5 seconds passes from the time, 2222 * a reboot is requested, this method returns. 2223 * 2224 * @param reason code to pass to the kernel (e.g. "recovery"), or null. 2225 */ 2226 public static void lowLevelReboot(String reason) { 2227 if (reason == null) { 2228 reason = ""; 2229 } 2230 SystemProperties.set("sys.powerctl", "reboot," + reason); 2231 try { 2232 Thread.sleep(20000); 2233 } catch (InterruptedException e) { 2234 Thread.currentThread().interrupt(); 2235 } 2236 } 2237 2238 @Override // Watchdog.Monitor implementation 2239 public void monitor() { 2240 // Grab and release lock for watchdog monitor to detect deadlocks. 2241 synchronized (mLock) { 2242 } 2243 } 2244 2245 @Override // Binder call 2246 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 2247 if (mContext.checkCallingOrSelfPermission(Manifest.permission.DUMP) 2248 != PackageManager.PERMISSION_GRANTED) { 2249 pw.println("Permission Denial: can't dump PowerManager from from pid=" 2250 + Binder.getCallingPid() 2251 + ", uid=" + Binder.getCallingUid()); 2252 return; 2253 } 2254 2255 pw.println("POWER MANAGER (dumpsys power)\n"); 2256 2257 final DisplayPowerController dpc; 2258 final WirelessChargerDetector wcd; 2259 synchronized (mLock) { 2260 pw.println("Power Manager State:"); 2261 pw.println(" mDirty=0x" + Integer.toHexString(mDirty)); 2262 pw.println(" mWakefulness=" + wakefulnessToString(mWakefulness)); 2263 pw.println(" mIsPowered=" + mIsPowered); 2264 pw.println(" mPlugType=" + mPlugType); 2265 pw.println(" mBatteryLevel=" + mBatteryLevel); 2266 pw.println(" mBatteryLevelWhenDreamStarted=" + mBatteryLevelWhenDreamStarted); 2267 pw.println(" mDockState=" + mDockState); 2268 pw.println(" mStayOn=" + mStayOn); 2269 pw.println(" mProximityPositive=" + mProximityPositive); 2270 pw.println(" mBootCompleted=" + mBootCompleted); 2271 pw.println(" mSystemReady=" + mSystemReady); 2272 pw.println(" mWakeLockSummary=0x" + Integer.toHexString(mWakeLockSummary)); 2273 pw.println(" mUserActivitySummary=0x" + Integer.toHexString(mUserActivitySummary)); 2274 pw.println(" mRequestWaitForNegativeProximity=" + mRequestWaitForNegativeProximity); 2275 pw.println(" mSandmanScheduled=" + mSandmanScheduled); 2276 pw.println(" mLastWakeTime=" + TimeUtils.formatUptime(mLastWakeTime)); 2277 pw.println(" mLastSleepTime=" + TimeUtils.formatUptime(mLastSleepTime)); 2278 pw.println(" mSendWakeUpFinishedNotificationWhenReady=" 2279 + mSendWakeUpFinishedNotificationWhenReady); 2280 pw.println(" mSendGoToSleepFinishedNotificationWhenReady=" 2281 + mSendGoToSleepFinishedNotificationWhenReady); 2282 pw.println(" mLastUserActivityTime=" + TimeUtils.formatUptime(mLastUserActivityTime)); 2283 pw.println(" mLastUserActivityTimeNoChangeLights=" 2284 + TimeUtils.formatUptime(mLastUserActivityTimeNoChangeLights)); 2285 pw.println(" mDisplayReady=" + mDisplayReady); 2286 pw.println(" mHoldingWakeLockSuspendBlocker=" + mHoldingWakeLockSuspendBlocker); 2287 pw.println(" mHoldingDisplaySuspendBlocker=" + mHoldingDisplaySuspendBlocker); 2288 2289 pw.println(); 2290 pw.println("Settings and Configuration:"); 2291 pw.println(" mWakeUpWhenPluggedOrUnpluggedConfig=" 2292 + mWakeUpWhenPluggedOrUnpluggedConfig); 2293 pw.println(" mSuspendWhenScreenOffDueToProximityConfig=" 2294 + mSuspendWhenScreenOffDueToProximityConfig); 2295 pw.println(" mDreamsSupportedConfig=" + mDreamsSupportedConfig); 2296 pw.println(" mDreamsEnabledByDefaultConfig=" + mDreamsEnabledByDefaultConfig); 2297 pw.println(" mDreamsActivatedOnSleepByDefaultConfig=" 2298 + mDreamsActivatedOnSleepByDefaultConfig); 2299 pw.println(" mDreamsActivatedOnDockByDefaultConfig=" 2300 + mDreamsActivatedOnDockByDefaultConfig); 2301 pw.println(" mDreamsEnabledSetting=" + mDreamsEnabledSetting); 2302 pw.println(" mDreamsActivateOnSleepSetting=" + mDreamsActivateOnSleepSetting); 2303 pw.println(" mDreamsActivateOnDockSetting=" + mDreamsActivateOnDockSetting); 2304 pw.println(" mScreenOffTimeoutSetting=" + mScreenOffTimeoutSetting); 2305 pw.println(" mMaximumScreenOffTimeoutFromDeviceAdmin=" 2306 + mMaximumScreenOffTimeoutFromDeviceAdmin + " (enforced=" 2307 + isMaximumScreenOffTimeoutFromDeviceAdminEnforcedLocked() + ")"); 2308 pw.println(" mStayOnWhilePluggedInSetting=" + mStayOnWhilePluggedInSetting); 2309 pw.println(" mScreenBrightnessSetting=" + mScreenBrightnessSetting); 2310 pw.println(" mScreenAutoBrightnessAdjustmentSetting=" 2311 + mScreenAutoBrightnessAdjustmentSetting); 2312 pw.println(" mScreenBrightnessModeSetting=" + mScreenBrightnessModeSetting); 2313 pw.println(" mScreenBrightnessOverrideFromWindowManager=" 2314 + mScreenBrightnessOverrideFromWindowManager); 2315 pw.println(" mUserActivityTimeoutOverrideFromWindowManager=" 2316 + mUserActivityTimeoutOverrideFromWindowManager); 2317 pw.println(" mTemporaryScreenBrightnessSettingOverride=" 2318 + mTemporaryScreenBrightnessSettingOverride); 2319 pw.println(" mTemporaryScreenAutoBrightnessAdjustmentSettingOverride=" 2320 + mTemporaryScreenAutoBrightnessAdjustmentSettingOverride); 2321 pw.println(" mScreenBrightnessSettingMinimum=" + mScreenBrightnessSettingMinimum); 2322 pw.println(" mScreenBrightnessSettingMaximum=" + mScreenBrightnessSettingMaximum); 2323 pw.println(" mScreenBrightnessSettingDefault=" + mScreenBrightnessSettingDefault); 2324 2325 final int screenOffTimeout = getScreenOffTimeoutLocked(); 2326 final int screenDimDuration = getScreenDimDurationLocked(screenOffTimeout); 2327 pw.println(); 2328 pw.println("Screen off timeout: " + screenOffTimeout + " ms"); 2329 pw.println("Screen dim duration: " + screenDimDuration + " ms"); 2330 2331 pw.println(); 2332 pw.println("Wake Locks: size=" + mWakeLocks.size()); 2333 for (WakeLock wl : mWakeLocks) { 2334 pw.println(" " + wl); 2335 } 2336 2337 pw.println(); 2338 pw.println("Suspend Blockers: size=" + mSuspendBlockers.size()); 2339 for (SuspendBlocker sb : mSuspendBlockers) { 2340 pw.println(" " + sb); 2341 } 2342 2343 pw.println(); 2344 pw.println("Screen On Blocker: " + mScreenOnBlocker); 2345 2346 pw.println(); 2347 pw.println("Display Blanker: " + mDisplayBlanker); 2348 2349 dpc = mDisplayPowerController; 2350 wcd = mWirelessChargerDetector; 2351 } 2352 2353 if (dpc != null) { 2354 dpc.dump(pw); 2355 } 2356 2357 if (wcd != null) { 2358 wcd.dump(pw); 2359 } 2360 } 2361 2362 private SuspendBlocker createSuspendBlockerLocked(String name) { 2363 SuspendBlocker suspendBlocker = new SuspendBlockerImpl(name); 2364 mSuspendBlockers.add(suspendBlocker); 2365 return suspendBlocker; 2366 } 2367 2368 private static String wakefulnessToString(int wakefulness) { 2369 switch (wakefulness) { 2370 case WAKEFULNESS_ASLEEP: 2371 return "Asleep"; 2372 case WAKEFULNESS_AWAKE: 2373 return "Awake"; 2374 case WAKEFULNESS_DREAMING: 2375 return "Dreaming"; 2376 case WAKEFULNESS_NAPPING: 2377 return "Napping"; 2378 default: 2379 return Integer.toString(wakefulness); 2380 } 2381 } 2382 2383 private static WorkSource copyWorkSource(WorkSource workSource) { 2384 return workSource != null ? new WorkSource(workSource) : null; 2385 } 2386 2387 private final class BatteryReceiver extends BroadcastReceiver { 2388 @Override 2389 public void onReceive(Context context, Intent intent) { 2390 synchronized (mLock) { 2391 handleBatteryStateChangedLocked(); 2392 } 2393 } 2394 } 2395 2396 private final class BootCompletedReceiver extends BroadcastReceiver { 2397 @Override 2398 public void onReceive(Context context, Intent intent) { 2399 // This is our early signal that the system thinks it has finished booting. 2400 // However, the boot animation may still be running for a few more seconds 2401 // since it is ultimately in charge of when it terminates. 2402 // Defer transitioning into the boot completed state until the animation exits. 2403 // We do this so that the screen does not start to dim prematurely before 2404 // the user has actually had a chance to interact with the device. 2405 startWatchingForBootAnimationFinished(); 2406 } 2407 } 2408 2409 private final class DreamReceiver extends BroadcastReceiver { 2410 @Override 2411 public void onReceive(Context context, Intent intent) { 2412 synchronized (mLock) { 2413 scheduleSandmanLocked(); 2414 } 2415 } 2416 } 2417 2418 private final class UserSwitchedReceiver extends BroadcastReceiver { 2419 @Override 2420 public void onReceive(Context context, Intent intent) { 2421 synchronized (mLock) { 2422 handleSettingsChangedLocked(); 2423 } 2424 } 2425 } 2426 2427 private final class DockReceiver extends BroadcastReceiver { 2428 @Override 2429 public void onReceive(Context context, Intent intent) { 2430 synchronized (mLock) { 2431 int dockState = intent.getIntExtra(Intent.EXTRA_DOCK_STATE, 2432 Intent.EXTRA_DOCK_STATE_UNDOCKED); 2433 if (mDockState != dockState) { 2434 mDockState = dockState; 2435 mDirty |= DIRTY_DOCK_STATE; 2436 updatePowerStateLocked(); 2437 } 2438 } 2439 } 2440 } 2441 2442 private final class SettingsObserver extends ContentObserver { 2443 public SettingsObserver(Handler handler) { 2444 super(handler); 2445 } 2446 2447 @Override 2448 public void onChange(boolean selfChange, Uri uri) { 2449 synchronized (mLock) { 2450 handleSettingsChangedLocked(); 2451 } 2452 } 2453 } 2454 2455 /** 2456 * Handler for asynchronous operations performed by the power manager. 2457 */ 2458 private final class PowerManagerHandler extends Handler { 2459 public PowerManagerHandler(Looper looper) { 2460 super(looper, null, true /*async*/); 2461 } 2462 2463 @Override 2464 public void handleMessage(Message msg) { 2465 switch (msg.what) { 2466 case MSG_USER_ACTIVITY_TIMEOUT: 2467 handleUserActivityTimeout(); 2468 break; 2469 case MSG_SANDMAN: 2470 handleSandman(); 2471 break; 2472 case MSG_SCREEN_ON_BLOCKER_RELEASED: 2473 handleScreenOnBlockerReleased(); 2474 break; 2475 case MSG_CHECK_IF_BOOT_ANIMATION_FINISHED: 2476 checkIfBootAnimationFinished(); 2477 break; 2478 } 2479 } 2480 } 2481 2482 /** 2483 * Represents a wake lock that has been acquired by an application. 2484 */ 2485 private final class WakeLock implements IBinder.DeathRecipient { 2486 public final IBinder mLock; 2487 public int mFlags; 2488 public String mTag; 2489 public final String mPackageName; 2490 public WorkSource mWorkSource; 2491 public final int mOwnerUid; 2492 public final int mOwnerPid; 2493 public boolean mNotifiedAcquired; 2494 2495 public WakeLock(IBinder lock, int flags, String tag, String packageName, 2496 WorkSource workSource, int ownerUid, int ownerPid) { 2497 mLock = lock; 2498 mFlags = flags; 2499 mTag = tag; 2500 mPackageName = packageName; 2501 mWorkSource = copyWorkSource(workSource); 2502 mOwnerUid = ownerUid; 2503 mOwnerPid = ownerPid; 2504 } 2505 2506 @Override 2507 public void binderDied() { 2508 PowerManagerService.this.handleWakeLockDeath(this); 2509 } 2510 2511 public boolean hasSameProperties(int flags, String tag, WorkSource workSource, 2512 int ownerUid, int ownerPid) { 2513 return mFlags == flags 2514 && mTag.equals(tag) 2515 && hasSameWorkSource(workSource) 2516 && mOwnerUid == ownerUid 2517 && mOwnerPid == ownerPid; 2518 } 2519 2520 public void updateProperties(int flags, String tag, String packageName, 2521 WorkSource workSource, int ownerUid, int ownerPid) { 2522 if (!mPackageName.equals(packageName)) { 2523 throw new IllegalStateException("Existing wake lock package name changed: " 2524 + mPackageName + " to " + packageName); 2525 } 2526 if (mOwnerUid != ownerUid) { 2527 throw new IllegalStateException("Existing wake lock uid changed: " 2528 + mOwnerUid + " to " + ownerUid); 2529 } 2530 if (mOwnerPid != ownerPid) { 2531 throw new IllegalStateException("Existing wake lock pid changed: " 2532 + mOwnerPid + " to " + ownerPid); 2533 } 2534 mFlags = flags; 2535 mTag = tag; 2536 updateWorkSource(workSource); 2537 } 2538 2539 public boolean hasSameWorkSource(WorkSource workSource) { 2540 return Objects.equal(mWorkSource, workSource); 2541 } 2542 2543 public void updateWorkSource(WorkSource workSource) { 2544 mWorkSource = copyWorkSource(workSource); 2545 } 2546 2547 @Override 2548 public String toString() { 2549 return getLockLevelString() 2550 + " '" + mTag + "'" + getLockFlagsString() 2551 + " (uid=" + mOwnerUid + ", pid=" + mOwnerPid + ", ws=" + mWorkSource + ")"; 2552 } 2553 2554 private String getLockLevelString() { 2555 switch (mFlags & PowerManager.WAKE_LOCK_LEVEL_MASK) { 2556 case PowerManager.FULL_WAKE_LOCK: 2557 return "FULL_WAKE_LOCK "; 2558 case PowerManager.SCREEN_BRIGHT_WAKE_LOCK: 2559 return "SCREEN_BRIGHT_WAKE_LOCK "; 2560 case PowerManager.SCREEN_DIM_WAKE_LOCK: 2561 return "SCREEN_DIM_WAKE_LOCK "; 2562 case PowerManager.PARTIAL_WAKE_LOCK: 2563 return "PARTIAL_WAKE_LOCK "; 2564 case PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK: 2565 return "PROXIMITY_SCREEN_OFF_WAKE_LOCK"; 2566 default: 2567 return "??? "; 2568 } 2569 } 2570 2571 private String getLockFlagsString() { 2572 String result = ""; 2573 if ((mFlags & PowerManager.ACQUIRE_CAUSES_WAKEUP) != 0) { 2574 result += " ACQUIRE_CAUSES_WAKEUP"; 2575 } 2576 if ((mFlags & PowerManager.ON_AFTER_RELEASE) != 0) { 2577 result += " ON_AFTER_RELEASE"; 2578 } 2579 return result; 2580 } 2581 } 2582 2583 private final class SuspendBlockerImpl implements SuspendBlocker { 2584 private final String mName; 2585 private int mReferenceCount; 2586 2587 public SuspendBlockerImpl(String name) { 2588 mName = name; 2589 } 2590 2591 @Override 2592 protected void finalize() throws Throwable { 2593 try { 2594 if (mReferenceCount != 0) { 2595 Log.wtf(TAG, "Suspend blocker \"" + mName 2596 + "\" was finalized without being released!"); 2597 mReferenceCount = 0; 2598 nativeReleaseSuspendBlocker(mName); 2599 } 2600 } finally { 2601 super.finalize(); 2602 } 2603 } 2604 2605 @Override 2606 public void acquire() { 2607 synchronized (this) { 2608 mReferenceCount += 1; 2609 if (mReferenceCount == 1) { 2610 if (DEBUG_SPEW) { 2611 Slog.d(TAG, "Acquiring suspend blocker \"" + mName + "\"."); 2612 } 2613 nativeAcquireSuspendBlocker(mName); 2614 } 2615 } 2616 } 2617 2618 @Override 2619 public void release() { 2620 synchronized (this) { 2621 mReferenceCount -= 1; 2622 if (mReferenceCount == 0) { 2623 if (DEBUG_SPEW) { 2624 Slog.d(TAG, "Releasing suspend blocker \"" + mName + "\"."); 2625 } 2626 nativeReleaseSuspendBlocker(mName); 2627 } else if (mReferenceCount < 0) { 2628 Log.wtf(TAG, "Suspend blocker \"" + mName 2629 + "\" was released without being acquired!", new Throwable()); 2630 mReferenceCount = 0; 2631 } 2632 } 2633 } 2634 2635 @Override 2636 public String toString() { 2637 synchronized (this) { 2638 return mName + ": ref count=" + mReferenceCount; 2639 } 2640 } 2641 } 2642 2643 private final class ScreenOnBlockerImpl implements ScreenOnBlocker { 2644 private int mNestCount; 2645 2646 public boolean isHeld() { 2647 synchronized (this) { 2648 return mNestCount != 0; 2649 } 2650 } 2651 2652 @Override 2653 public void acquire() { 2654 synchronized (this) { 2655 mNestCount += 1; 2656 if (DEBUG) { 2657 Slog.d(TAG, "Screen on blocked: mNestCount=" + mNestCount); 2658 } 2659 } 2660 } 2661 2662 @Override 2663 public void release() { 2664 synchronized (this) { 2665 mNestCount -= 1; 2666 if (mNestCount < 0) { 2667 Log.wtf(TAG, "Screen on blocker was released without being acquired!", 2668 new Throwable()); 2669 mNestCount = 0; 2670 } 2671 if (mNestCount == 0) { 2672 mHandler.sendEmptyMessage(MSG_SCREEN_ON_BLOCKER_RELEASED); 2673 } 2674 if (DEBUG) { 2675 Slog.d(TAG, "Screen on unblocked: mNestCount=" + mNestCount); 2676 } 2677 } 2678 } 2679 2680 @Override 2681 public String toString() { 2682 synchronized (this) { 2683 return "held=" + (mNestCount != 0) + ", mNestCount=" + mNestCount; 2684 } 2685 } 2686 } 2687 2688 private final class DisplayBlankerImpl implements DisplayBlanker { 2689 private boolean mBlanked; 2690 2691 @Override 2692 public void blankAllDisplays() { 2693 synchronized (this) { 2694 mBlanked = true; 2695 mDisplayManagerService.blankAllDisplaysFromPowerManager(); 2696 nativeSetInteractive(false); 2697 nativeSetAutoSuspend(true); 2698 } 2699 } 2700 2701 @Override 2702 public void unblankAllDisplays() { 2703 synchronized (this) { 2704 nativeSetAutoSuspend(false); 2705 nativeSetInteractive(true); 2706 mDisplayManagerService.unblankAllDisplaysFromPowerManager(); 2707 mBlanked = false; 2708 } 2709 } 2710 2711 @Override 2712 public String toString() { 2713 synchronized (this) { 2714 return "blanked=" + mBlanked; 2715 } 2716 } 2717 } 2718} 2719