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/*
* Copyright (C) 2014 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.midi;
import android.os.ParcelFileDescriptor;
import android.os.RemoteException;
import android.util.Log;
import java.io.FileDescriptor;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
/**
* This class is used for sending and receiving data to and from an MIDI device
* Instances of this class are created by {@link MidiManager#openDevice}.
*
* @hide
*/
public final class MidiDevice {
private static final String TAG = "MidiDevice";
private final MidiDeviceInfo mDeviceInfo;
private final IMidiDeviceServer mServer;
/**
* MidiDevice should only be instantiated by MidiManager
* @hide
*/
public MidiDevice(MidiDeviceInfo deviceInfo, IMidiDeviceServer server) {
mDeviceInfo = deviceInfo;
mServer = server;
}
/**
* Returns a {@link MidiDeviceInfo} object, which describes this device.
*
* @return the {@link MidiDeviceInfo} object
*/
public MidiDeviceInfo getInfo() {
return mDeviceInfo;
}
/**
* Called to open a {@link MidiInputPort} for the specified port number.
*
* @param portNumber the number of the input port to open
* @return the {@link MidiInputPort}
*/
public MidiInputPort openInputPort(int portNumber) {
try {
ParcelFileDescriptor pfd = mServer.openInputPort(portNumber);
if (pfd == null) {
return null;
}
return new MidiInputPort(pfd, portNumber);
} catch (RemoteException e) {
Log.e(TAG, "RemoteException in openInputPort");
return null;
}
}
/**
* Called to open a {@link MidiOutputPort} for the specified port number.
*
* @param portNumber the number of the output port to open
* @return the {@link MidiOutputPort}
*/
public MidiOutputPort openOutputPort(int portNumber) {
try {
ParcelFileDescriptor pfd = mServer.openOutputPort(portNumber);
if (pfd == null) {
return null;
}
return new MidiOutputPort(pfd, portNumber);
} catch (RemoteException e) {
Log.e(TAG, "RemoteException in openOutputPort");
return null;
}
}
@Override
public String toString() {
return ("MidiDevice: " + mDeviceInfo.toString());
}
}
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