2 * Copyright © 2011 Keith Packard <keithp@keithp.com>
3 * Copyright © 2012 Mike Beattie <mike@ethernal.org>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; version 2 of the License.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
19 package org.altusmetrum.AltosDroid;
21 import java.io.IOException;
22 import java.io.InputStream;
23 import java.io.OutputStream;
24 import java.util.UUID;
26 import android.bluetooth.BluetoothAdapter;
27 import android.bluetooth.BluetoothDevice;
28 import android.bluetooth.BluetoothSocket;
29 //import android.os.Bundle;
30 import android.os.Handler;
31 //import android.os.Message;
32 import android.util.Log;
34 import org.altusmetrum.AltosLib.*;
36 public class AltosBluetooth extends AltosLink {
39 private static final String TAG = "AltosBluetooth";
40 private static final boolean D = true;
42 private ConnectThread connect_thread = null;
43 private Thread input_thread = null;
45 private Handler handler;
47 private BluetoothAdapter adapter;
48 private BluetoothDevice device;
49 private BluetoothSocket socket;
50 private InputStream input;
51 private OutputStream output;
54 public AltosBluetooth(BluetoothDevice in_device, Handler in_handler) {
55 adapter = BluetoothAdapter.getDefaultAdapter();
59 connect_thread = new ConnectThread(device);
60 connect_thread.start();
62 input_thread = new Thread(this);
66 private class ConnectThread extends Thread {
67 private final UUID SPP_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
69 public ConnectThread(BluetoothDevice device) {
70 BluetoothSocket tmp_socket = null;
73 tmp_socket = device.createInsecureRfcommSocketToServiceRecord(SPP_UUID);
74 } catch (IOException e) {
81 if (D) Log.i(TAG, "ConnectThread: BEGIN");
82 setName("ConnectThread");
84 // Always cancel discovery because it will slow down a connection
85 adapter.cancelDiscovery();
87 synchronized (AltosBluetooth.this) {
88 // Make a connection to the BluetoothSocket
90 // This is a blocking call and will only return on a
91 // successful connection or an exception
94 input = socket.getInputStream();
95 output = socket.getOutputStream();
96 } catch (IOException e) {
100 } catch (IOException e2) {
101 if (D) Log.e(TAG, "ConnectThread: Failed to close() socket after failed connection");
105 AltosBluetooth.this.notifyAll();
106 handler.obtainMessage(TelemetryService.MSG_CONNECT_FAILED).sendToTarget();
107 if (D) Log.e(TAG, "ConnectThread: Failed to establish connection");
111 // Configure the newly connected device for telemetry
115 // Reset the ConnectThread because we're done
116 connect_thread = null;
118 // Send the device name back to the Telemetry Service
119 name = device.getName();
120 handler.obtainMessage(TelemetryService.MSG_CONNECTED).sendToTarget();
122 // Notify other waiting threads, now that we're connected
123 AltosBluetooth.this.notifyAll();
125 if (D) Log.i(TAG, "ConnectThread: Connect completed");
129 public void cancel() {
133 } catch (IOException e) {
134 if (D) Log.e(TAG, "ConnectThread: close() of connect socket failed", e);
139 private synchronized void wait_connected() throws InterruptedException, IOException {
140 if (D) Log.i(TAG, "wait_connected(): begin");
142 if (D) Log.i(TAG, "wait_connected(): waiting");
144 if (D) Log.i(TAG, "wait_connected(): wait ended..");
145 if (input == null) throw new IOException();
149 private void connection_failed() {
150 if (D) Log.e(TAG, "Bluetooth Socket IO failed!");
151 handler.obtainMessage(TelemetryService.MSG_DISCONNECTED).sendToTarget();
154 public void print(String data) {
155 byte[] bytes = data.getBytes();
156 if (D) Log.i(TAG, "print(): begin");
160 if (D) Log.i(TAG, "print(): Wrote bytes: '" + data.replace('\n', '\\') + "'");
161 } catch (IOException e) {
163 } catch (InterruptedException e) {
168 public int getchar() {
169 if (D) Log.i(TAG, "getchar(): begin");
172 if (D) Log.i(TAG, "getchar(): proceeding");
174 } catch (IOException e) {
176 } catch (java.lang.InterruptedException e) {
179 return AltosLink.ERROR;
182 public void close() {
183 if (D) Log.i(TAG, "close(): begin");
185 if (D) Log.i(TAG, "close(): synched");
187 if (connect_thread != null) {
188 if (D) Log.i(TAG, "close(): stopping connect_thread");
189 connect_thread.cancel();
190 connect_thread = null;
192 if (D) Log.i(TAG, "close(): Closing socket");
195 } catch (IOException e) {
196 if (D) Log.e(TAG, "close(): unable to close() socket");
198 if (input_thread != null) {
199 if (D) Log.i(TAG, "close(): stopping input_thread");
201 if (D) Log.i(TAG, "close(): input_thread.interrupt().....");
202 input_thread.interrupt();
203 if (D) Log.i(TAG, "close(): input_thread.join().....");
205 } catch (Exception e) {}
215 //public void flush_output() { super.flush_output(); }
217 public boolean can_cancel_reply() { return false; }
218 public boolean show_reply_timeout() { return true; }
219 public void hide_reply_timeout() { }