Add consumer IR framework
Change-Id: I786c00db0cce61ef75e4edc24e90f2cdcba6dbfb
diff --git a/services/java/com/android/server/ConsumerIrService.java b/services/java/com/android/server/ConsumerIrService.java
new file mode 100644
index 0000000..07f2a41
--- /dev/null
+++ b/services/java/com/android/server/ConsumerIrService.java
@@ -0,0 +1,130 @@
+/*
+ * Copyright (C) 2013 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;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.pm.PackageManager;
+import android.database.ContentObserver;
+import android.hardware.input.InputManager;
+import android.hardware.IConsumerIrService;
+import android.os.Handler;
+import android.os.PowerManager;
+import android.os.Process;
+import android.os.RemoteException;
+import android.os.IBinder;
+import android.os.Binder;
+import android.os.ServiceManager;
+import android.os.SystemClock;
+import android.os.UserHandle;
+import android.os.WorkSource;
+import android.provider.Settings;
+import android.provider.Settings.SettingNotFoundException;
+import android.util.Slog;
+import android.view.InputDevice;
+
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.ListIterator;
+
+public class ConsumerIrService extends IConsumerIrService.Stub {
+ private static final String TAG = "ConsumerIrService";
+
+ private static final int MAX_XMIT_TIME = 2000000; /* in microseconds */
+
+ private static native int halOpen();
+ private static native int halTransmit(int halObject, int carrierFrequency, int[] pattern);
+ private static native int[] halGetCarrierFrequencies(int halObject);
+
+ private final Context mContext;
+ private final PowerManager.WakeLock mWakeLock;
+ private final int mHal;
+ private final Object mHalLock = new Object();
+
+ ConsumerIrService(Context context) {
+ mContext = context;
+ PowerManager pm = (PowerManager)context.getSystemService(
+ Context.POWER_SERVICE);
+ mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG);
+ mWakeLock.setReferenceCounted(true);
+
+ mHal = halOpen();
+ if (mHal == 0) {
+ Slog.w(TAG, "No IR HAL loaded");
+ }
+ }
+
+ @Override
+ public boolean hasIrEmitter() {
+ return mHal != 0;
+ }
+
+ private void throwIfNoIrEmitter() {
+ if (mHal == 0) {
+ throw new UnsupportedOperationException("IR emitter not available");
+ }
+ }
+
+
+ @Override
+ public void transmit(String packageName, int carrierFrequency, int[] pattern) {
+ if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.TRANSMIT_IR)
+ != PackageManager.PERMISSION_GRANTED) {
+ throw new SecurityException("Requires TRANSMIT_IR permission");
+ }
+
+ long totalXmitTime = 0;
+
+ for (int slice : pattern) {
+ if (slice <= 0) {
+ throw new IllegalArgumentException("Non-positive IR slice");
+ }
+ totalXmitTime += slice;
+ }
+
+ if (totalXmitTime > MAX_XMIT_TIME ) {
+ throw new IllegalArgumentException("IR pattern too long");
+ }
+
+ throwIfNoIrEmitter();
+
+ // Right now there is no mechanism to ensure fair queing of IR requests
+ synchronized (mHalLock) {
+ int err = halTransmit(mHal, carrierFrequency, pattern);
+
+ if (err < 0) {
+ Slog.e(TAG, "Error transmitting: " + err);
+ }
+ }
+ }
+
+ @Override
+ public int[] getCarrierFrequencies() {
+ if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.TRANSMIT_IR)
+ != PackageManager.PERMISSION_GRANTED) {
+ throw new SecurityException("Requires TRANSMIT_IR permission");
+ }
+
+ throwIfNoIrEmitter();
+
+ synchronized(mHalLock) {
+ return halGetCarrierFrequencies(mHal);
+ }
+ }
+}