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/*
* 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.lang.RuntimeException;
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 (mContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_CONSUMER_IR)) {
if (mHal == 0) {
throw new RuntimeException("FEATURE_CONSUMER_IR present, but no IR HAL loaded!");
}
} else if (mHal != 0) {
throw new RuntimeException("IR HAL present, but FEATURE_CONSUMER_IR is not set!");
}
}
@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);
}
}
}
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