Merge "Added adb commands to set and reset brightness." into pi-dev (0048eb21) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/display/DisplayManagerService.java

+27 −1

Original line number	Diff line number	Diff line
		@@ -61,12 +61,15 @@ import android.os.Message;
		import android.os.PowerManager;
		import android.os.Process;
		import android.os.RemoteException;
		import android.os.ResultReceiver;
		import android.os.ServiceManager;
		import android.os.ShellCallback;
		import android.os.SystemClock;
		import android.os.SystemProperties;
		import android.os.Trace;
		import android.os.UserHandle;
		import android.os.UserManager;
		import android.provider.Settings;
		import android.text.TextUtils;
		import android.util.IntArray;
		import android.util.Slog;
		@@ -1030,7 +1033,7 @@ public final class DisplayManagerService extends SystemService {
		}

		private void setBrightnessConfigurationForUserInternal(
		@NonNull BrightnessConfiguration c, @UserIdInt int userId,
		@Nullable BrightnessConfiguration c, @UserIdInt int userId,
		@Nullable String packageName) {
		final int userSerial = getUserManager().getUserSerialNumber(userId);
		synchronized (mSyncRoot) {
		@@ -1983,6 +1986,29 @@ public final class DisplayManagerService extends SystemService {
		}
		}

		@Override // Binder call
		public void onShellCommand(FileDescriptor in, FileDescriptor out,
		FileDescriptor err, String[] args, ShellCallback callback,
		ResultReceiver resultReceiver) {
		final long token = Binder.clearCallingIdentity();
		try {
		DisplayManagerShellCommand command = new DisplayManagerShellCommand(this);
		command.exec(this, in, out, err, args, callback, resultReceiver);
		} finally {
		Binder.restoreCallingIdentity(token);
		}
		}

		void setBrightness(int brightness) {
		Settings.System.putIntForUser(mContext.getContentResolver(),
		Settings.System.SCREEN_BRIGHTNESS, brightness, UserHandle.USER_CURRENT);
		}

		void resetBrightnessConfiguration() {
		setBrightnessConfigurationForUserInternal(null, mContext.getUserId(),
		mContext.getPackageName());
		}

		private boolean validatePackageName(int uid, String packageName) {
		if (packageName != null) {
		String[] packageNames = mContext.getPackageManager().getPackagesForUid(uid);

services/core/java/com/android/server/display/DisplayManagerShellCommand.java

0 → 100644

+92 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2018 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package com.android.server.display;

		import android.content.Intent;
		import android.os.RemoteException;
		import android.os.ResultReceiver;
		import android.os.ShellCallback;
		import android.os.ShellCommand;
		import android.util.Slog;

		import java.io.PrintWriter;
		import java.lang.NumberFormatException;

		class DisplayManagerShellCommand extends ShellCommand {
		private static final String TAG = "DisplayManagerShellCommand";

		private final DisplayManagerService.BinderService mService;

		DisplayManagerShellCommand(DisplayManagerService.BinderService service) {
		mService = service;
		}

		@Override
		public int onCommand(String cmd) {
		if (cmd == null) {
		return handleDefaultCommands(cmd);
		}
		final PrintWriter pw = getOutPrintWriter();
		switch(cmd) {
		case "set-brightness":
		return setBrightness();
		case "reset-brightness-configuration":
		return resetBrightnessConfiguration();
		default:
		return handleDefaultCommands(cmd);
		}
		}

		@Override
		public void onHelp() {
		final PrintWriter pw = getOutPrintWriter();
		pw.println("Display manager commands:");
		pw.println(" help");
		pw.println(" Print this help text.");
		pw.println();
		pw.println(" set-brightness BRIGHTNESS");
		pw.println(" Sets the current brightness to BRIGHTNESS (a number between 0 and 1).");
		pw.println(" reset-brightness-configuration");
		pw.println(" Reset the brightness to its default configuration.");
		pw.println();
		Intent.printIntentArgsHelp(pw , "");
		}

		private int setBrightness() {
		String brightnessText = getNextArg();
		if (brightnessText == null) {
		getErrPrintWriter().println("Error: no brightness specified");
		return 1;
		}
		float brightness = -1;
		try {
		brightness = Float.parseFloat(brightnessText);
		} catch (NumberFormatException e) {
		}
		if (brightness < 0 \|\| brightness > 1) {
		getErrPrintWriter().println("Error: brightness should be a number between 0 and 1");
		return 1;
		}
		mService.setBrightness((int) brightness * 255);
		return 0;
		}

		private int resetBrightnessConfiguration() {
		mService.resetBrightnessConfiguration();
		return 0;
		}
		}