61 lines
2.9 KiB
Diff
61 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 4bc70cf5856e..09c5fd36ea7d 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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@@ -82,7 +82,12 @@ 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.Objects;
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/**
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@@ -1292,6 +1297,18 @@ final class DisplayPowerController implements AutomaticBrightnessController.Call
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}
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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 void loadBrightnessRampRates() {
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mBrightnessRampRateFastDecrease = mDisplayDeviceConfig.getBrightnessRampFastDecrease();
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mBrightnessRampRateFastIncrease = mDisplayDeviceConfig.getBrightnessRampFastIncrease();
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@@ -2005,6 +2022,7 @@ 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(mDisplayId);
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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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@@ -2264,6 +2282,7 @@ 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(mDisplayId, mIsInTransition);
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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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@@ -2272,6 +2291,7 @@ final class DisplayPowerController implements AutomaticBrightnessController.Call
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unblockScreenOff();
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mWindowManagerPolicy.screenTurnedOff(mDisplayId, mIsInTransition);
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setReportedScreenState(REPORTED_TO_POLICY_SCREEN_OFF);
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+ changeKeyboardBacklightState("0");
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}
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if (!isOff
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&& (mReportedScreenStateToPolicy == REPORTED_TO_POLICY_SCREEN_OFF
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