62 lines
2.9 KiB
Diff
62 lines
2.9 KiB
Diff
diff --git a/services/core/java/com/android/server/display/DisplayPowerController.java b/services/core/java/com/android/server/display/DisplayPowerController.java
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index 7c0f4197363..16758ba496e 100644
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--- a/services/core/java/com/android/server/display/DisplayPowerController.java
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+++ b/services/core/java/com/android/server/display/DisplayPowerController.java
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@@ -63,7 +63,12 @@ import com.android.server.display.whitebalance.DisplayWhiteBalanceFactory;
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import com.android.server.display.whitebalance.DisplayWhiteBalanceSettings;
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import com.android.server.policy.WindowManagerPolicy;
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+import java.io.BufferedWriter;
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+import java.io.File;
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+import java.io.FileWriter;
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+import java.io.IOException;
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import java.io.PrintWriter;
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+import java.io.Writer;
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import java.util.List;
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/**
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@@ -561,6 +566,18 @@ final class DisplayPowerController implements AutomaticBrightnessController.Call
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mDisplayWhiteBalanceController = displayWhiteBalanceController;
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}
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+ private void changeKeyboardBacklightState(String value) {
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+ try {
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+ File outputFile = new File("/sys/class/leds/keyboard_light/", "brightness");
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+ Writer writer = new BufferedWriter(new FileWriter(outputFile));
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+
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+ writer.write(value);
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+ writer.close();
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+ } catch (IOException e) {
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+ Slog.d("NEHEMIAH", "Sorry, failed to change the value of the keyboard backlight");
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+ }
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+ }
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+
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private Sensor findDisplayLightSensor(String sensorType) {
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if (!TextUtils.isEmpty(sensorType)) {
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List<Sensor> sensors = mSensorManager.getSensorList(Sensor.TYPE_ALL);
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@@ -1154,6 +1171,7 @@ final class DisplayPowerController implements AutomaticBrightnessController.Call
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&& mReportedScreenStateToPolicy == REPORTED_TO_POLICY_SCREEN_TURNING_ON) {
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setReportedScreenState(REPORTED_TO_POLICY_SCREEN_ON);
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mWindowManagerPolicy.screenTurnedOn();
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+ changeKeyboardBacklightState("255");
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}
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// Grab a wake lock if we have unfinished business.
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@@ -1310,6 +1328,7 @@ final class DisplayPowerController implements AutomaticBrightnessController.Call
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setReportedScreenState(REPORTED_TO_POLICY_SCREEN_OFF);
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unblockScreenOn();
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mWindowManagerPolicy.screenTurnedOff();
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+ changeKeyboardBacklightState("0");
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} else if (!isOff
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&& mReportedScreenStateToPolicy == REPORTED_TO_POLICY_SCREEN_TURNING_OFF) {
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@@ -1317,6 +1336,7 @@ final class DisplayPowerController implements AutomaticBrightnessController.Call
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// Complete the full state transition on -> turningOff -> off.
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unblockScreenOff();
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mWindowManagerPolicy.screenTurnedOff();
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+ changeKeyboardBacklightState("0");
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setReportedScreenState(REPORTED_TO_POLICY_SCREEN_OFF);
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}
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if (!isOff && mReportedScreenStateToPolicy == REPORTED_TO_POLICY_SCREEN_OFF) {
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