am eb9cbb8f: Resurrect flashlight support in obsolete IHardwareService Binder API. (3e9e9696) · Commits · e / os / android_frameworks_base

Android.mk

+2 −1

Original line number	Diff line number	Diff line
		@@ -118,6 +118,7 @@ LOCAL_SRC_FILES += \
		core/java/android/net/IConnectivityManager.aidl \
		core/java/android/net/INetworkManagementEventObserver.aidl \
		core/java/android/net/IThrottleManager.aidl \
		core/java/android/os/IHardwareService.aidl \
		core/java/android/os/IMessenger.aidl \
		core/java/android/os/storage/IMountService.aidl \
		core/java/android/os/storage/IMountServiceListener.aidl \

core/java/android/os/IHardwareService.aidl

0 → 100755

+26 −0

Original line number	Diff line number	Diff line
		/**
		* Copyright (c) 2007, 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 android.os;

		/** {@hide} */
		interface IHardwareService
		{
		// obsolete flashlight support
		boolean getFlashlightEnabled();
		void setFlashlightEnabled(boolean on);
		}

services/java/com/android/server/LightsService.java

+49 −0

Original line number	Diff line number	Diff line
		@@ -17,10 +17,17 @@
		package com.android.server;

		import android.content.Context;
		import android.content.pm.PackageManager;
		import android.os.Handler;
		import android.os.IHardwareService;
		import android.os.ServiceManager;
		import android.os.Message;
		import android.util.Slog;

		import java.io.File;
		import java.io.FileInputStream;
		import java.io.FileOutputStream;

		public class LightsService {
		private static final String TAG = "LightsService";

		@@ -124,11 +131,53 @@ public class LightsService {
		private boolean mFlashing;
		}

		/* This class implements an obsolete API that was removed after eclair and re-added during the
		* final moments of the froyo release to support flashlight apps that had been using the private
		* IHardwareService API. This is expected to go away in the next release.
		*/
		private final IHardwareService.Stub mLegacyFlashlightHack = new IHardwareService.Stub() {

		private static final String FLASHLIGHT_FILE = "/sys/class/leds/spotlight/brightness";

		public boolean getFlashlightEnabled() {
		try {
		FileInputStream fis = new FileInputStream(FLASHLIGHT_FILE);
		int result = fis.read();
		fis.close();
		return (result != '0');
		} catch (Exception e) {
		Slog.e(TAG, "getFlashlightEnabled failed", e);
		return false;
		}
		}

		public void setFlashlightEnabled(boolean on) {
		if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.FLASHLIGHT)
		!= PackageManager.PERMISSION_GRANTED &&
		mContext.checkCallingOrSelfPermission(android.Manifest.permission.HARDWARE_TEST)
		!= PackageManager.PERMISSION_GRANTED) {
		throw new SecurityException("Requires FLASHLIGHT or HARDWARE_TEST permission");
		}
		try {
		FileOutputStream fos = new FileOutputStream(FLASHLIGHT_FILE);
		byte[] bytes = new byte[2];
		bytes[0] = (byte)(on ? '1' : '0');
		bytes[1] = '\n';
		fos.write(bytes);
		fos.close();
		} catch (Exception e) {
		Slog.e(TAG, "setFlashlightEnabled failed", e);
		}
		}
		};

		LightsService(Context context) {

		mNativePointer = init_native();
		mContext = context;

		ServiceManager.addService("hardware", mLegacyFlashlightHack);

		for (int i = 0; i < LIGHT_ID_COUNT; i++) {
		mLights[i] = new Light(i);
		}