diff options
Diffstat (limited to 'services/java/com/android/server/PowerManagerService.java')
| -rw-r--r-- | services/java/com/android/server/PowerManagerService.java | 172 |
1 files changed, 119 insertions, 53 deletions
diff --git a/services/java/com/android/server/PowerManagerService.java b/services/java/com/android/server/PowerManagerService.java index e1bea37..99e008c 100644 --- a/services/java/com/android/server/PowerManagerService.java +++ b/services/java/com/android/server/PowerManagerService.java @@ -53,6 +53,7 @@ import android.view.WindowManagerPolicy; import static android.provider.Settings.System.DIM_SCREEN; import static android.provider.Settings.System.SCREEN_BRIGHTNESS; import static android.provider.Settings.System.SCREEN_BRIGHTNESS_MODE; +import static android.provider.Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC; import static android.provider.Settings.System.SCREEN_OFF_TIMEOUT; import static android.provider.Settings.System.STAY_ON_WHILE_PLUGGED_IN; @@ -64,7 +65,7 @@ import java.util.Observable; import java.util.Observer; class PowerManagerService extends IPowerManager.Stub - implements LocalPowerManager, Watchdog.Monitor, SensorEventListener { + implements LocalPowerManager, Watchdog.Monitor { private static final String TAG = "PowerManagerService"; static final String PARTIAL_NAME = "PowerManagerService"; @@ -189,6 +190,9 @@ class PowerManagerService extends IPowerManager.Stub private BatteryService mBatteryService; private SensorManager mSensorManager; private Sensor mProximitySensor; + private Sensor mLightSensor; + private boolean mLightSensorEnabled; + private float mLightSensorValue = -1; private boolean mDimScreen = true; private long mNextTimeout; private volatile int mPokey = 0; @@ -199,6 +203,8 @@ class PowerManagerService extends IPowerManager.Stub private long mScreenOnStartTime; private boolean mPreventScreenOn; private int mScreenBrightnessOverride = -1; + private boolean mHasHardwareAutoBrightness; + private boolean mAutoBrightessEnabled; // Used when logging number and duration of touch-down cycles private long mTotalTouchDownTime; @@ -207,6 +213,7 @@ class PowerManagerService extends IPowerManager.Stub // could be either static or controllable at runtime private static final boolean mSpew = false; + private static final boolean mDebugLightSensor = false; /* static PrintStream mLog; @@ -344,6 +351,9 @@ class PowerManagerService extends IPowerManager.Stub // DIM_SCREEN //mDimScreen = getInt(DIM_SCREEN) != 0; + // SCREEN_BRIGHTNESS_MODE + setScreenBrightnessMode(getInt(SCREEN_BRIGHTNESS_MODE)); + // recalculate everything setScreenOffTimeoutsLocked(); } @@ -415,12 +425,17 @@ class PowerManagerService extends IPowerManager.Stub mScreenOffIntent = new Intent(Intent.ACTION_SCREEN_OFF); mScreenOffIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); - ContentResolver resolver = mContext.getContentResolver(); + mHasHardwareAutoBrightness = mContext.getResources().getBoolean( + com.android.internal.R.bool.config_hardware_automatic_brightness_available); + + ContentResolver resolver = mContext.getContentResolver(); Cursor settingsCursor = resolver.query(Settings.System.CONTENT_URI, null, "(" + Settings.System.NAME + "=?) or (" + Settings.System.NAME + "=?) or (" + + Settings.System.NAME + "=?) or (" + Settings.System.NAME + "=?)", - new String[]{STAY_ON_WHILE_PLUGGED_IN, SCREEN_OFF_TIMEOUT, DIM_SCREEN}, + new String[]{STAY_ON_WHILE_PLUGGED_IN, SCREEN_OFF_TIMEOUT, DIM_SCREEN, + SCREEN_BRIGHTNESS_MODE}, null); mSettings = new ContentQueryMap(settingsCursor, Settings.System.NAME, true, mHandler); SettingsObserver settingsObserver = new SettingsObserver(); @@ -444,10 +459,6 @@ class PowerManagerService extends IPowerManager.Stub // turn everything on setPowerState(ALL_BRIGHT); - // set auto brightness mode to user setting - boolean brightnessMode = Settings.System.getInt(resolver, SCREEN_BRIGHTNESS_MODE, 1) != 0; - mHardware.setAutoBrightness_UNCHECKED(brightnessMode); - synchronized (mHandlerThread) { mInitComplete = true; mHandlerThread.notifyAll(); @@ -1164,7 +1175,7 @@ class PowerManagerService extends IPowerManager.Stub // Finally, set the flag that prevents the screen from turning on. // (Below, in setPowerState(), we'll check mPreventScreenOn and - // we *won't* call Power.setScreenState(true) if it's set.) + // we *won't* call setScreenStateLocked(true) if it's set.) mPreventScreenOn = true; } else { // (Re)enable the screen. @@ -1182,9 +1193,9 @@ class PowerManagerService extends IPowerManager.Stub Log.d(TAG, "preventScreenOn: turning on after a prior preventScreenOn(true)!"); } - int err = Power.setScreenState(true); + int err = setScreenStateLocked(true); if (err != 0) { - Log.w(TAG, "preventScreenOn: error from Power.setScreenState(): " + err); + Log.w(TAG, "preventScreenOn: error from setScreenStateLocked(): " + err); } } @@ -1239,6 +1250,14 @@ class PowerManagerService extends IPowerManager.Stub } }; + private int setScreenStateLocked(boolean on) { + int err = Power.setScreenState(on); + if (err == 0) { + enableLightSensor(on && mAutoBrightessEnabled); + } + return err; + } + private void setPowerState(int state) { setPowerState(state, false, false); @@ -1327,7 +1346,7 @@ class PowerManagerService extends IPowerManager.Stub reallyTurnScreenOn = false; } if (reallyTurnScreenOn) { - err = Power.setScreenState(true); + err = setScreenStateLocked(true); long identity = Binder.clearCallingIdentity(); try { mBatteryStats.noteScreenBrightness( @@ -1339,7 +1358,7 @@ class PowerManagerService extends IPowerManager.Stub Binder.restoreCallingIdentity(identity); } } else { - Power.setScreenState(false); + setScreenStateLocked(false); // But continue as if we really did turn the screen on... err = 0; } @@ -1384,7 +1403,7 @@ class PowerManagerService extends IPowerManager.Stub EventLog.writeEvent(LOG_POWER_SCREEN_STATE, 0, becauseOfUser ? 1 : 0, mTotalTouchDownTime, mTouchCycles); mLastTouchDown = 0; - int err = Power.setScreenState(false); + int err = setScreenStateLocked(false); if (mScreenOnStartTime != 0) { mScreenOnTime += SystemClock.elapsedRealtime() - mScreenOnStartTime; mScreenOnStartTime = 0; @@ -1802,6 +1821,14 @@ class PowerManagerService extends IPowerManager.Stub } } + private void lightSensorChangedLocked(float value) { + if (mDebugLightSensor) { + Log.d(TAG, "lightSensorChangedLocked " + value); + } + mLightSensorValue = value; + // more to do here + } + /** * The user requested that we go to sleep (probably with the power button). * This overrides all wake locks that are held. @@ -1885,6 +1912,18 @@ class PowerManagerService extends IPowerManager.Stub } } + private void setScreenBrightnessMode(int mode) { + mAutoBrightessEnabled = (mode == SCREEN_BRIGHTNESS_MODE_AUTOMATIC); + + if (mHasHardwareAutoBrightness) { + // When setting auto-brightness, must reset the brightness afterwards + mHardware.setAutoBrightness_UNCHECKED(mAutoBrightessEnabled); + setBacklightBrightness((int)mScreenBrightness.curValue); + } else { + enableLightSensor(screenIsOn() && mAutoBrightessEnabled); + } + } + /** Sets the screen off timeouts: * mKeylightDelay * mDimDelay @@ -2031,6 +2070,14 @@ class PowerManagerService extends IPowerManager.Stub } void systemReady() { + mSensorManager = new SensorManager(mHandlerThread.getLooper()); + mProximitySensor = mSensorManager.getDefaultSensor(Sensor.TYPE_PROXIMITY); + // don't bother with the light sensor if auto brightness is handled in hardware + if (!mHasHardwareAutoBrightness) { + mLightSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_LIGHT); + enableLightSensor(mAutoBrightessEnabled); + } + synchronized (mLocks) { Log.d(TAG, "system ready!"); mDoneBooting = true; @@ -2058,8 +2105,6 @@ class PowerManagerService extends IPowerManager.Stub | PowerManager.FULL_WAKE_LOCK | PowerManager.SCREEN_DIM_WAKE_LOCK; - // call getSensorManager() to make sure mProximitySensor is initialized - getSensorManager(); if (mProximitySensor != null) { result |= PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK; } @@ -2098,31 +2143,19 @@ class PowerManagerService extends IPowerManager.Stub } } - public void setAutoBrightness(boolean on) { - mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null); - mHardware.setAutoBrightness_UNCHECKED(on); - } - - private SensorManager getSensorManager() { - if (mSensorManager == null) { - mSensorManager = new SensorManager(mHandlerThread.getLooper()); - mProximitySensor = mSensorManager.getDefaultSensor(Sensor.TYPE_PROXIMITY); - } - return mSensorManager; - } - private void enableProximityLockLocked() { if (mSpew) { Log.d(TAG, "enableProximityLockLocked"); } - mSensorManager.registerListener(this, mProximitySensor, SensorManager.SENSOR_DELAY_NORMAL); + mSensorManager.registerListener(mProximityListener, mProximitySensor, + SensorManager.SENSOR_DELAY_NORMAL); } private void disableProximityLockLocked() { if (mSpew) { Log.d(TAG, "disableProximityLockLocked"); } - mSensorManager.unregisterListener(this); + mSensorManager.unregisterListener(mProximityListener); synchronized (mLocks) { if (mProximitySensorActive) { mProximitySensorActive = false; @@ -2131,32 +2164,65 @@ class PowerManagerService extends IPowerManager.Stub } } - public void onSensorChanged(SensorEvent event) { - long milliseconds = event.timestamp / 1000000; - synchronized (mLocks) { - float distance = event.values[0]; - // compare against getMaximumRange to support sensors that only return 0 or 1 - if (distance >= 0.0 && distance < PROXIMITY_THRESHOLD && - distance < mProximitySensor.getMaximumRange()) { - if (mSpew) { - Log.d(TAG, "onSensorChanged: proximity active, distance: " + distance); - } - goToSleepLocked(milliseconds); - mProximitySensorActive = true; + private void enableLightSensor(boolean enable) { + if (mDebugLightSensor) { + Log.d(TAG, "enableLightSensor " + enable); + } + if (mSensorManager != null && mLightSensorEnabled != enable) { + mLightSensorEnabled = enable; + if (enable) { + mSensorManager.registerListener(mLightListener, mLightSensor, + SensorManager.SENSOR_DELAY_NORMAL); } else { - // proximity sensor negative events trigger as user activity. - // temporarily set mUserActivityAllowed to true so this will work - // even when the keyguard is on. - if (mSpew) { - Log.d(TAG, "onSensorChanged: proximity inactive, distance: " + distance); - } - mProximitySensorActive = false; - forceUserActivityLocked(); + mSensorManager.unregisterListener(mLightListener); } } } - public void onAccuracyChanged(Sensor sensor, int accuracy) { - // ignore - } + SensorEventListener mProximityListener = new SensorEventListener() { + public void onSensorChanged(SensorEvent event) { + long milliseconds = event.timestamp / 1000000; + synchronized (mLocks) { + float distance = event.values[0]; + // compare against getMaximumRange to support sensors that only return 0 or 1 + if (distance >= 0.0 && distance < PROXIMITY_THRESHOLD && + distance < mProximitySensor.getMaximumRange()) { + if (mSpew) { + Log.d(TAG, "onSensorChanged: proximity active, distance: " + distance); + } + goToSleepLocked(milliseconds); + mProximitySensorActive = true; + } else { + // proximity sensor negative events trigger as user activity. + // temporarily set mUserActivityAllowed to true so this will work + // even when the keyguard is on. + if (mSpew) { + Log.d(TAG, "onSensorChanged: proximity inactive, distance: " + distance); + } + mProximitySensorActive = false; + forceUserActivityLocked(); + } + } + } + + public void onAccuracyChanged(Sensor sensor, int accuracy) { + // ignore + } + }; + + SensorEventListener mLightListener = new SensorEventListener() { + public void onSensorChanged(SensorEvent event) { + synchronized (mLocks) { + int value = (int)event.values[0]; + if (mDebugLightSensor) { + Log.d(TAG, "onSensorChanged: light value: " + value); + } + lightSensorChangedLocked(value); + } + } + + public void onAccuracyChanged(Sensor sensor, int accuracy) { + // ignore + } + }; } |