Turn off the ALS when the user setting doesn't ask for automatic brightness. (d28f753c) · Commits · e / os / android_frameworks_base

services/java/com/android/server/PowerManagerService.java

+15 −14

Original line number	Diff line number	Diff line
		@@ -1613,7 +1613,7 @@ class PowerManagerService extends IPowerManager.Stub
		if (err == 0) {
		mLastScreenOnTime = (on ? SystemClock.elapsedRealtime() : 0);
		if (mUseSoftwareAutoBrightness) {
		enableLightSensor(on);
		enableLightSensorLocked(on);
		if (!on) {
		// make sure button and key backlights are off too
		mButtonLight.turnOff();
		@@ -2576,16 +2576,12 @@ class PowerManagerService extends IPowerManager.Stub
		}

		private void setScreenBrightnessMode(int mode) {
		synchronized (mLocks) {
		boolean enabled = (mode == SCREEN_BRIGHTNESS_MODE_AUTOMATIC);
		if (mUseSoftwareAutoBrightness && mAutoBrightessEnabled != enabled) {
		mAutoBrightessEnabled = enabled;
		if (isScreenOn()) {
		// force recompute of backlight values
		if (mLightSensorValue >= 0) {
		int value = (int)mLightSensorValue;
		mLightSensorValue = -1;
		lightSensorChangedLocked(value);
		}
		// This will get us a new value
		enableLightSensorLocked(mAutoBrightessEnabled && isScreenOn());
		}
		}
		}
		@@ -2737,7 +2733,6 @@ class PowerManagerService extends IPowerManager.Stub
		// don't bother with the light sensor if auto brightness is handled in hardware
		if (mUseSoftwareAutoBrightness) {
		mLightSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_LIGHT);
		enableLightSensor(true);
		}

		// wait until sensors are enabled before turning on screen.
		@@ -2755,6 +2750,8 @@ class PowerManagerService extends IPowerManager.Stub
		Slog.d(TAG, "system ready!");
		mDoneBooting = true;

		enableLightSensorLocked(mUseSoftwareAutoBrightness && mAutoBrightessEnabled);

		long identity = Binder.clearCallingIdentity();
		try {
		mBatteryStats.noteScreenBrightness(getPreferredBrightness());
		@@ -2909,9 +2906,13 @@ class PowerManagerService extends IPowerManager.Stub
		}
		}

		private void enableLightSensor(boolean enable) {
		private void enableLightSensorLocked(boolean enable) {
		if (mDebugLightSensor) {
		Slog.d(TAG, "enableLightSensor " + enable);
		Slog.d(TAG, "enableLightSensorLocked enable=" + enable
		+ " mAutoBrightessEnabled=" + mAutoBrightessEnabled);
		}
		if (!mAutoBrightessEnabled) {
		enable = false;
		}
		if (mSensorManager != null && mLightSensorEnabled != enable) {
		mLightSensorEnabled = enable;