/*
 * Copyright 2009 Cedric Priscal
 * 
 * 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.tcl.factory.serial;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileDescriptor;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import android.util.Log;
public class SerialPort {

	private final String TAG = this.getClass().getName();

	/*
	 * Do not remove or rename the field mFd: it is used by native method close();
	 */
	private FileDescriptor mFd;
	

	public SerialPort(File device, int baudrate, int flags) throws SecurityException, IOException {

		if (!device.canRead() || !device.canWrite()) {
			throw new SecurityException();
		}
		mFd = open(device.getAbsolutePath(), baudrate, flags);
		if (mFd == null) {
			Log.e(TAG, "native open returns null");
			throw new IOException();
		}
	}

	// Getters and setters
//	public InputStream getInputStream() {
//		return mFileInputStream;
//	}
//
//	public OutputStream getOutputStream() {
//	return mFileOutputStream;
//}
	public FileDescriptor getFileDescriptor() {
		return mFd;
	}

	
	// JNI
	private native static FileDescriptor open(String path, int baudrate, int flags);
	public native void close();
	public native int read(byte[] buffer, int length);
	public native void write(byte[] buffer, int length);
	static {
		System.loadLibrary("serial_port");
	}
}
//