--- /dev/null
+/*
+ * Copyright © 2011 Keith Packard <keithp@keithp.com>
+ * Copyright © 2012 Mike Beattie <mike@ethernal.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+package org.altusmetrum.AltosDroid;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.UUID;
+
+import android.bluetooth.BluetoothAdapter;
+import android.bluetooth.BluetoothDevice;
+import android.bluetooth.BluetoothSocket;
+//import android.os.Bundle;
+import android.os.Handler;
+//import android.os.Message;
+
+import org.altusmetrum.altoslib_13.*;
+
+public class AltosBluetooth extends AltosDroidLink {
+
+ private ConnectThread connect_thread = null;
+
+ private BluetoothDevice device;
+ private BluetoothSocket socket;
+ private InputStream input;
+ private OutputStream output;
+ private boolean pause;
+
+ // Constructor
+ public AltosBluetooth(BluetoothDevice device, Handler handler, boolean pause) {
+ super(handler);
+ this.device = device;
+ this.handler = handler;
+ this.pause = pause;
+
+ connect_thread = new ConnectThread();
+ connect_thread.start();
+ }
+
+ void connected() {
+ if (closed()) {
+ AltosDebug.debug("connected after closed");
+ return;
+ }
+
+ AltosDebug.check_ui("connected\n");
+ try {
+ synchronized(this) {
+ if (socket != null) {
+ input = socket.getInputStream();
+ output = socket.getOutputStream();
+ super.connected();
+ }
+ }
+ } catch (InterruptedException ie) {
+ connect_failed();
+ } catch (IOException io) {
+ connect_failed();
+ }
+ }
+
+ private void connect_failed() {
+ if (closed()) {
+ AltosDebug.debug("connect_failed after closed");
+ return;
+ }
+
+ close_device();
+ input = null;
+ output = null;
+ handler.obtainMessage(TelemetryService.MSG_CONNECT_FAILED, this).sendToTarget();
+ AltosDebug.error("ConnectThread: Failed to establish connection");
+ }
+
+ void close_device() {
+ BluetoothSocket tmp_socket;
+
+ synchronized(this) {
+ tmp_socket = socket;
+ socket = null;
+ }
+
+ if (tmp_socket != null) {
+ try {
+ tmp_socket.close();
+ } catch (IOException e) {
+ AltosDebug.error("close_socket failed");
+ }
+ }
+ }
+
+ public void close() {
+ super.close();
+ input = null;
+ output = null;
+ }
+
+ private final UUID SPP_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
+
+ private void create_socket(BluetoothDevice device) {
+
+ BluetoothSocket tmp_socket = null;
+
+ AltosDebug.check_ui("create_socket\n");
+ try {
+ tmp_socket = device.createInsecureRfcommSocketToServiceRecord(SPP_UUID);
+ } catch (IOException e) {
+ e.printStackTrace();
+ }
+ if (socket != null) {
+ AltosDebug.debug("Socket already allocated %s", socket.toString());
+ close_device();
+ }
+ synchronized (this) {
+ socket = tmp_socket;
+ }
+ }
+
+ private class ConnectThread extends Thread {
+
+ public void run() {
+ AltosDebug.debug("ConnectThread: BEGIN (pause %b)", pause);
+ setName("ConnectThread");
+
+ if (pause) {
+ try {
+ Thread.sleep(4000);
+ } catch (InterruptedException e) {
+ }
+ }
+
+ create_socket(device);
+ // Always cancel discovery because it will slow down a connection
+ try {
+ BluetoothAdapter.getDefaultAdapter().cancelDiscovery();
+ } catch (Exception e) {
+ AltosDebug.debug("cancelDiscovery exception %s", e.toString());
+ }
+
+ BluetoothSocket local_socket = null;
+
+ synchronized (AltosBluetooth.this) {
+ if (!closed())
+ local_socket = socket;
+ }
+
+ if (local_socket != null) {
+ try {
+ // Make a connection to the BluetoothSocket
+ // This is a blocking call and will only return on a
+ // successful connection or an exception
+ local_socket.connect();
+ } catch (Exception e) {
+ AltosDebug.debug("Connect exception %s", e.toString());
+ try {
+ local_socket.close();
+ } catch (Exception ce) {
+ AltosDebug.debug("Close exception %s", ce.toString());
+ }
+ local_socket = null;
+ }
+ }
+
+ if (local_socket != null) {
+ connected();
+ } else {
+ connect_failed();
+ }
+
+ AltosDebug.debug("ConnectThread: completed");
+ }
+ }
+
+ private synchronized void wait_connected() throws InterruptedException, IOException {
+ AltosDebug.check_ui("wait_connected\n");
+ if (input == null && socket != null) {
+ AltosDebug.debug("wait_connected...");
+ wait();
+ AltosDebug.debug("wait_connected done");
+ }
+ if (socket == null)
+ throw new IOException();
+ }
+
+ int write(byte[] buffer, int len) {
+ if (output == null)
+ return -1;
+ try {
+ output.write(buffer, 0, len);
+ } catch (IOException ie) {
+ return -1;
+ }
+ return len;
+ }
+
+ int read(byte[] buffer, int len) {
+ if (input == null)
+ return -1;
+ try {
+ return input.read(buffer, 0, len);
+ } catch (IOException ie) {
+ return -1;
+ }
+ }
+
+ // Stubs of required methods when extending AltosLink
+ public boolean can_cancel_reply() { return false; }
+ public boolean show_reply_timeout() { return true; }
+ public void hide_reply_timeout() { }
+
+}
projects / fw / altos / blobdiff