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Power Manager light sensor fixes:

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Fix problem with ignored sensor events right after screen turns on.
Do not flash button backlights when device is booting.
Process the first light sensor change after waking the screen immediately rather than debouncing.
Cancel mAutoBrightnessTask when light sensor is disabled.

Change-Id: Iffc5e090b239432b7643812fa8ecb5f69da1679d
Signed-off-by: Mike Lockwood <lockwood@android.com>
This commit is contained in:
Mike Lockwood
2009-10-20 08:10:00 -04:00
parent d7786b41b7
commit 6c97fcabbc
1 changed files with 20 additions and 5 deletions
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25
services/java/com/android/server/PowerManagerService.java
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@ -477,8 +477,13 @@ class PowerManagerService extends IPowerManager.Stub
// And explicitly do the initial update of our cached settings
updateGservicesValues();
// turn everything on
setPowerState(ALL_BRIGHT);
if (mAutoBrightessEnabled) {
// turn the screen on
setPowerState(SCREEN_BRIGHT);
} else {
// turn everything on
setPowerState(ALL_BRIGHT);
}
synchronized (mHandlerThread) {
mInitComplete = true;
@ -1285,6 +1290,9 @@ class PowerManagerService extends IPowerManager.Stub
// make sure button and key backlights are off too
mHardware.setLightBrightness_UNCHECKED(HardwareService.LIGHT_ID_BUTTONS, 0);
mHardware.setLightBrightness_UNCHECKED(HardwareService.LIGHT_ID_KEYBOARD, 0);
// clear current value so we will update based on the new conditions
// when the sensor is reenabled.
mLightSensorValue = -1;
}
}
return err;
@ -1323,7 +1331,7 @@ class PowerManagerService extends IPowerManager.Stub
return;
}
if (!mDoneBooting) {
if (!mDoneBooting && !mAutoBrightessEnabled) {
newState |= ALL_BRIGHT;
}
@ -2275,6 +2283,7 @@ class PowerManagerService extends IPowerManager.Stub
SensorManager.SENSOR_DELAY_NORMAL);
} else {
mSensorManager.unregisterListener(mLightListener);
mHandler.removeCallbacks(mAutoBrightnessTask);
}
}
}
@ -2319,8 +2328,14 @@ class PowerManagerService extends IPowerManager.Stub
}
mHandler.removeCallbacks(mAutoBrightnessTask);
if (mLightSensorValue != value) {
mLightSensorPendingValue = value;
mHandler.postDelayed(mAutoBrightnessTask, LIGHT_SENSOR_DELAY);
if (mLightSensorValue == -1) {
// process the value immediately
lightSensorChangedLocked(value);
} else {
// delay processing to debounce the sensor
mLightSensorPendingValue = value;
mHandler.postDelayed(mAutoBrightnessTask, LIGHT_SENSOR_DELAY);
}
} else {
mLightSensorPendingValue = -1;
}