git.gag.com Git - fw/altos/blob - altosdroid/src/org/altusmetrum/AltosDroid/AltosDroid.java

   1 /*
   2  * Copyright © 2012-2013 Mike Beattie <mike@ethernal.org>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; version 2 of the License.
   7  *
   8  * This program is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  16  */
  17
  18 package org.altusmetrum.AltosDroid;
  19
  20 import java.lang.ref.WeakReference;
  21 import java.util.ArrayList;
  22 import java.util.Timer;
  23 import java.util.TimerTask;
  24
  25 import android.app.Activity;
  26 import android.app.PendingIntent;
  27 import android.bluetooth.BluetoothAdapter;
  28 import android.bluetooth.BluetoothDevice;
  29 import android.content.Intent;
  30 import android.content.Context;
  31 import android.content.ComponentName;
  32 import android.content.ServiceConnection;
  33 import android.content.DialogInterface;
  34 import android.os.IBinder;
  35 import android.os.Bundle;
  36 import android.os.Handler;
  37 import android.os.Message;
  38 import android.os.Messenger;
  39 import android.os.RemoteException;
  40 import android.support.v4.app.FragmentActivity;
  41 import android.support.v4.app.FragmentManager;
  42 import android.util.DisplayMetrics;
  43 import android.util.Log;
  44 import android.view.Menu;
  45 import android.view.MenuInflater;
  46 import android.view.MenuItem;
  47 import android.view.Window;
  48 import android.view.View;
  49 import android.widget.TabHost;
  50 import android.widget.TextView;
  51 import android.widget.RelativeLayout;
  52 import android.widget.Toast;
  53 import android.app.AlertDialog;
  54 import android.location.Location;
  55 import android.hardware.usb.*;
  56
  57 import org.altusmetrum.altoslib_6.*;
  58
  59 public class AltosDroid extends FragmentActivity implements AltosUnitsListener {
  60         // Debugging
  61         static final String TAG = "AltosDroid";
  62         static final boolean D = true;
  63
  64         // Actions sent to the telemetry server at startup time
  65
  66         public static final String ACTION_BLUETOOTH = "org.altusmetrum.AltosDroid.BLUETOOTH";
  67         public static final String ACTION_USB = "org.altusmetrum.AltosDroid.USB";
  68
  69         // Message types received by our Handler
  70
  71         public static final int MSG_STATE           = 1;
  72         public static final int MSG_UPDATE_AGE      = 2;
  73
  74         // Intent request codes
  75         public static final int REQUEST_CONNECT_DEVICE = 1;
  76         public static final int REQUEST_ENABLE_BT      = 2;
  77
  78         public static FragmentManager   fm;
  79
  80         private BluetoothAdapter mBluetoothAdapter = null;
  81
  82         // Layout Views
  83         private TextView mTitle;
  84
  85         // Flight state values
  86         private TextView mCallsignView;
  87         private TextView mRSSIView;
  88         private TextView mSerialView;
  89         private TextView mFlightView;
  90         private RelativeLayout mStateLayout;
  91         private TextView mStateView;
  92         private TextView mAgeView;
  93
  94         // field to display the version at the bottom of the screen
  95         private TextView mVersion;
  96
  97         private double frequency;
  98         private int telemetry_rate;
  99
 100         // Tabs
 101         TabHost         mTabHost;
 102         AltosViewPager  mViewPager;
 103         TabsAdapter     mTabsAdapter;
 104         ArrayList<AltosDroidTab> mTabs = new ArrayList<AltosDroidTab>();
 105         int             tabHeight;
 106
 107         // Timer and Saved flight state for Age calculation
 108         private Timer timer;
 109         AltosState saved_state;
 110
 111         UsbDevice       pending_usb_device;
 112         boolean         start_with_usb;
 113
 114         // Service
 115         private boolean mIsBound   = false;
 116         private Messenger mService = null;
 117         final Messenger mMessenger = new Messenger(new IncomingHandler(this));
 118
 119         // Text to Speech
 120         private AltosVoice mAltosVoice = null;
 121
 122         // The Handler that gets information back from the Telemetry Service
 123         static class IncomingHandler extends Handler {
 124                 private final WeakReference<AltosDroid> mAltosDroid;
 125                 IncomingHandler(AltosDroid ad) { mAltosDroid = new WeakReference<AltosDroid>(ad); }
 126
 127                 @Override
 128                 public void handleMessage(Message msg) {
 129                         AltosDroid ad = mAltosDroid.get();
 130
 131                         switch (msg.what) {
 132                         case MSG_STATE:
 133                                 if(D) Log.d(TAG, "MSG_STATE");
 134                                 TelemetryState telemetry_state = (TelemetryState) msg.obj;
 135                                 if (telemetry_state == null) {
 136                                         Log.d(TAG, "telemetry_state null!");
 137                                         return;
 138                                 }
 139
 140                                 ad.update_state(telemetry_state);
 141                                 break;
 142                         case MSG_UPDATE_AGE:
 143                                 if(D) Log.d(TAG, "MSG_UPDATE_AGE");
 144                                 ad.update_age();
 145                                 break;
 146                         }
 147                 }
 148         };
 149
 150
 151         private ServiceConnection mConnection = new ServiceConnection() {
 152                 public void onServiceConnected(ComponentName className, IBinder service) {
 153                         mService = new Messenger(service);
 154                         try {
 155                                 Message msg = Message.obtain(null, TelemetryService.MSG_REGISTER_CLIENT);
 156                                 msg.replyTo = mMessenger;
 157                                 mService.send(msg);
 158                         } catch (RemoteException e) {
 159                                 // In this case the service has crashed before we could even do anything with it
 160                         }
 161                         if (pending_usb_device != null) {
 162                                 try {
 163                                         mService.send(Message.obtain(null, TelemetryService.MSG_OPEN_USB, pending_usb_device));
 164                                         pending_usb_device = null;
 165                                 } catch (RemoteException e) {
 166                                 }
 167                         }
 168                 }
 169
 170                 public void onServiceDisconnected(ComponentName className) {
 171                         // This is called when the connection with the service has been unexpectedly disconnected - process crashed.
 172                         mService = null;
 173                 }
 174         };
 175
 176         void doBindService() {
 177                 bindService(new Intent(this, TelemetryService.class), mConnection, Context.BIND_AUTO_CREATE);
 178                 mIsBound = true;
 179         }
 180
 181         void doUnbindService() {
 182                 if (mIsBound) {
 183                         // If we have received the service, and hence registered with it, then now is the time to unregister.
 184                         if (mService != null) {
 185                                 try {
 186                                         Message msg = Message.obtain(null, TelemetryService.MSG_UNREGISTER_CLIENT);
 187                                         msg.replyTo = mMessenger;
 188                                         mService.send(msg);
 189                                 } catch (RemoteException e) {
 190                                         // There is nothing special we need to do if the service has crashed.
 191                                 }
 192                         }
 193                         // Detach our existing connection.
 194                         unbindService(mConnection);
 195                         mIsBound = false;
 196                 }
 197         }
 198
 199         public void registerTab(AltosDroidTab mTab) {
 200                 mTabs.add(mTab);
 201         }
 202
 203         public void unregisterTab(AltosDroidTab mTab) {
 204                 mTabs.remove(mTab);
 205         }
 206
 207         public void units_changed(boolean imperial_units) {
 208                 for (AltosDroidTab mTab : mTabs)
 209                         mTab.units_changed(imperial_units);
 210         }
 211
 212         void update_title(TelemetryState telemetry_state) {
 213                 switch (telemetry_state.connect) {
 214                 case TelemetryState.CONNECT_CONNECTED:
 215                         if (telemetry_state.config != null) {
 216                                 String str = String.format("S/N %d %6.3f MHz", telemetry_state.config.serial,
 217                                                            telemetry_state.frequency);
 218                                 if (telemetry_state.telemetry_rate != AltosLib.ao_telemetry_rate_38400)
 219                                         str = str.concat(String.format(" %d bps",
 220                                                                        AltosLib.ao_telemetry_rate_values[telemetry_state.telemetry_rate]));
 221                                 mTitle.setText(str);
 222                         } else {
 223                                 mTitle.setText(R.string.title_connected_to);
 224                         }
 225                         break;
 226                 case TelemetryState.CONNECT_CONNECTING:
 227                         if (telemetry_state.address != null)
 228                                 mTitle.setText(String.format("Connecting to %s...", telemetry_state.address.name));
 229                         else
 230                                 mTitle.setText("Connecting to something...");
 231                         break;
 232                 case TelemetryState.CONNECT_DISCONNECTED:
 233                 case TelemetryState.CONNECT_NONE:
 234                         mTitle.setText(R.string.title_not_connected);
 235                         break;
 236                 }
 237         }
 238
 239         void start_timer() {
 240                 if (timer == null) {
 241                         timer = new Timer();
 242                         timer.scheduleAtFixedRate(new TimerTask(){ public void run() {onTimerTick();}}, 1000L, 1000L);
 243                 }
 244         }
 245
 246         void stop_timer() {
 247                 if (timer != null) {
 248                         timer.cancel();
 249                         timer.purge();
 250                         timer = null;
 251                 }
 252         }
 253
 254         boolean registered_units_listener;
 255
 256         void update_state(TelemetryState telemetry_state) {
 257
 258                 if (!registered_units_listener) {
 259                         registered_units_listener = true;
 260                         AltosPreferences.register_units_listener(this);
 261                 }
 262
 263                 update_title(telemetry_state);
 264                 update_ui(telemetry_state.state, telemetry_state.location);
 265                 if (telemetry_state.connect == TelemetryState.CONNECT_CONNECTED)
 266                         start_timer();
 267         }
 268
 269         boolean same_string(String a, String b) {
 270                 if (a == null) {
 271                         if (b == null)
 272                                 return true;
 273                         return false;
 274                 } else {
 275                         if (b == null)
 276                                 return false;
 277                         return a.equals(b);
 278                 }
 279         }
 280
 281         void update_age() {
 282                 if (saved_state != null)
 283                         mAgeView.setText(String.format("%d", (System.currentTimeMillis() - saved_state.received_time + 500) / 1000));
 284         }
 285
 286         void update_ui(AltosState state, Location location) {
 287
 288                 int prev_state = AltosLib.ao_flight_invalid;
 289
 290                 AltosGreatCircle from_receiver = null;
 291
 292                 if (saved_state != null)
 293                         prev_state = saved_state.state;
 294
 295                 if (state != null) {
 296                         if (state.state == AltosLib.ao_flight_stateless) {
 297                                 boolean prev_locked = false;
 298                                 boolean locked = false;
 299
 300                                 if(state.gps != null)
 301                                         locked = state.gps.locked;
 302                                 if (saved_state != null && saved_state.gps != null)
 303                                         prev_locked = saved_state.gps.locked;
 304                                 if (prev_locked != locked) {
 305                                         String currentTab = mTabHost.getCurrentTabTag();
 306                                         if (locked) {
 307                                                 if (currentTab.equals("pad")) mTabHost.setCurrentTabByTag("descent");
 308                                         } else {
 309                                                 if (currentTab.equals("descent")) mTabHost.setCurrentTabByTag("pad");
 310                                         }
 311                                 }
 312                         } else {
 313                                 if (prev_state != state.state) {
 314                                         String currentTab = mTabHost.getCurrentTabTag();
 315                                         switch (state.state) {
 316                                         case AltosLib.ao_flight_boost:
 317                                                 if (currentTab.equals("pad")) mTabHost.setCurrentTabByTag("ascent");
 318                                                 break;
 319                                         case AltosLib.ao_flight_drogue:
 320                                                 if (currentTab.equals("ascent")) mTabHost.setCurrentTabByTag("descent");
 321                                                 break;
 322                                         case AltosLib.ao_flight_landed:
 323                                                 if (currentTab.equals("descent")) mTabHost.setCurrentTabByTag("landed");
 324                                                 break;
 325                                         case AltosLib.ao_flight_stateless:
 326                                                 if (currentTab.equals("pad")) mTabHost.setCurrentTabByTag("descent");
 327                                                 break;
 328                                         }
 329                                 }
 330                         }
 331
 332                         if (location != null && state.gps != null && state.gps.locked) {
 333                                 double altitude = 0;
 334                                 if (location.hasAltitude())
 335                                         altitude = location.getAltitude();
 336                                 from_receiver = new AltosGreatCircle(location.getLatitude(),
 337                                                                      location.getLongitude(),
 338                                                                      altitude,
 339                                                                      state.gps.lat,
 340                                                                      state.gps.lon,
 341                                                                      state.gps.alt);
 342                         }
 343
 344                         if (saved_state == null || !same_string(saved_state.callsign, state.callsign)) {
 345                                 mCallsignView.setText(state.callsign);
 346                         }
 347                         if (saved_state == null || state.serial != saved_state.serial) {
 348                                 mSerialView.setText(String.format("%d", state.serial));
 349                         }
 350                         if (saved_state == null || state.flight != saved_state.flight) {
 351                                 if (state.flight == AltosLib.MISSING)
 352                                         mFlightView.setText("");
 353                                 else
 354                                         mFlightView.setText(String.format("%d", state.flight));
 355                         }
 356                         if (saved_state == null || state.state != saved_state.state) {
 357                                 if (state.state == AltosLib.ao_flight_stateless) {
 358                                         mStateLayout.setVisibility(View.GONE);
 359                                 } else {
 360                                         mStateView.setText(state.state_name());
 361                                         mStateLayout.setVisibility(View.VISIBLE);
 362                                 }
 363                         }
 364                         if (saved_state == null || state.rssi != saved_state.rssi) {
 365                                 mRSSIView.setText(String.format("%d", state.rssi));
 366                         }
 367                 }
 368
 369                 for (AltosDroidTab mTab : mTabs)
 370                         mTab.update_ui(state, from_receiver, location, mTab == mTabsAdapter.currentItem());
 371
 372                 if (state != null && mAltosVoice != null)
 373                         mAltosVoice.tell(state, from_receiver);
 374
 375                 saved_state = state;
 376         }
 377
 378         private void onTimerTick() {
 379                 try {
 380                         mMessenger.send(Message.obtain(null, MSG_UPDATE_AGE));
 381                 } catch (RemoteException e) {
 382                 }
 383         }
 384
 385         static String pos(double p, String pos, String neg) {
 386                 String  h = pos;
 387                 if (p == AltosLib.MISSING)
 388                         return "";
 389                 if (p < 0) {
 390                         h = neg;
 391                         p = -p;
 392                 }
 393                 int deg = (int) Math.floor(p);
 394                 double min = (p - Math.floor(p)) * 60.0;
 395                 return String.format("%d°%9.4f\" %s", deg, min, h);
 396         }
 397
 398         static String number(String format, double value) {
 399                 if (value == AltosLib.MISSING)
 400                         return "";
 401                 return String.format(format, value);
 402         }
 403
 404         static String integer(String format, int value) {
 405                 if (value == AltosLib.MISSING)
 406                         return "";
 407                 return String.format(format, value);
 408         }
 409
 410         @Override
 411         public void onCreate(Bundle savedInstanceState) {
 412                 super.onCreate(savedInstanceState);
 413                 if(D) Log.e(TAG, "+++ ON CREATE +++");
 414
 415                 fm = getSupportFragmentManager();
 416
 417                 // Set up the window layout
 418                 requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
 419                 setContentView(R.layout.altosdroid);
 420                 getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.custom_title);
 421
 422                 // Create the Tabs and ViewPager
 423                 mTabHost = (TabHost)findViewById(android.R.id.tabhost);
 424                 mTabHost.setup();
 425
 426                 mViewPager = (AltosViewPager)findViewById(R.id.pager);
 427                 mViewPager.setOffscreenPageLimit(4);
 428
 429                 mTabsAdapter = new TabsAdapter(this, mTabHost, mViewPager);
 430
 431                 mTabsAdapter.addTab(mTabHost.newTabSpec("pad").setIndicator("Pad"), TabPad.class, null);
 432                 mTabsAdapter.addTab(mTabHost.newTabSpec("ascent").setIndicator("Ascent"), TabAscent.class, null);
 433                 mTabsAdapter.addTab(mTabHost.newTabSpec("descent").setIndicator("Descent"), TabDescent.class, null);
 434                 mTabsAdapter.addTab(mTabHost.newTabSpec("landed").setIndicator("Landed"), TabLanded.class, null);
 435                 mTabsAdapter.addTab(mTabHost.newTabSpec("map").setIndicator("Map"), TabMap.class, null);
 436
 437
 438                 // Scale the size of the Tab bar for different screen densities
 439                 // This probably won't be needed when we start supporting ICS+ tabs.
 440                 DisplayMetrics metrics = new DisplayMetrics();
 441                 getWindowManager().getDefaultDisplay().getMetrics(metrics);
 442                 int density = metrics.densityDpi;
 443
 444                 if (density==DisplayMetrics.DENSITY_XHIGH)
 445                         tabHeight = 65;
 446                 else if (density==DisplayMetrics.DENSITY_HIGH)
 447                         tabHeight = 45;
 448                 else if (density==DisplayMetrics.DENSITY_MEDIUM)
 449                         tabHeight = 35;
 450                 else if (density==DisplayMetrics.DENSITY_LOW)
 451                         tabHeight = 25;
 452                 else
 453                         tabHeight = 65;
 454
 455                 for (int i = 0; i < 5; i++)
 456                         mTabHost.getTabWidget().getChildAt(i).getLayoutParams().height = tabHeight;
 457
 458                 // Set up the custom title
 459                 mTitle = (TextView) findViewById(R.id.title_left_text);
 460                 mTitle.setText(R.string.app_name);
 461                 mTitle = (TextView) findViewById(R.id.title_right_text);
 462
 463                 // Display the Version
 464                 mVersion = (TextView) findViewById(R.id.version);
 465                 mVersion.setText("Version: " + BuildInfo.version +
 466                                  "  Built: " + BuildInfo.builddate + " " + BuildInfo.buildtime + " " + BuildInfo.buildtz +
 467                                  "  (" + BuildInfo.branch + "-" + BuildInfo.commitnum + "-" + BuildInfo.commithash + ")");
 468
 469                 mCallsignView  = (TextView) findViewById(R.id.callsign_value);
 470                 mRSSIView      = (TextView) findViewById(R.id.rssi_value);
 471                 mSerialView    = (TextView) findViewById(R.id.serial_value);
 472                 mFlightView    = (TextView) findViewById(R.id.flight_value);
 473                 mStateLayout   = (RelativeLayout) findViewById(R.id.state_container);
 474                 mStateView     = (TextView) findViewById(R.id.state_value);
 475                 mAgeView       = (TextView) findViewById(R.id.age_value);
 476         }
 477
 478         private boolean ensureBluetooth() {
 479                 // Get local Bluetooth adapter
 480                 mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
 481
 482                 // If the adapter is null, then Bluetooth is not supported
 483                 if (mBluetoothAdapter == null) {
 484                         Toast.makeText(this, "Bluetooth is not available", Toast.LENGTH_LONG).show();
 485                         return false;
 486                 }
 487
 488                 if (!mBluetoothAdapter.isEnabled()) {
 489                         Intent enableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
 490                         startActivityForResult(enableIntent, AltosDroid.REQUEST_ENABLE_BT);
 491                 }
 492
 493                 return true;
 494         }
 495
 496         private boolean check_usb() {
 497                 UsbDevice       device = AltosUsb.find_device(this, AltosLib.product_basestation);
 498
 499                 if (device != null) {
 500                         Intent          i = new Intent(this, AltosDroid.class);
 501                         PendingIntent   pi = PendingIntent.getActivity(this, 0, new Intent("hello world", null, this, AltosDroid.class), 0);
 502
 503                         if (AltosUsb.request_permission(this, device, pi)) {
 504                                 connectUsb(device);
 505                         }
 506                         start_with_usb = true;
 507                         return true;
 508                 }
 509
 510                 start_with_usb = false;
 511
 512                 return false;
 513         }
 514
 515         private void noticeIntent(Intent intent) {
 516
 517                 /* Ok, this is pretty convenient.
 518                  *
 519                  * When a USB device is plugged in, and our 'hotplug'
 520                  * intent registration fires, we get an Intent with
 521                  * EXTRA_DEVICE set.
 522                  *
 523                  * When we start up and see a usb device and request
 524                  * permission to access it, that queues a
 525                  * PendingIntent, which has the EXTRA_DEVICE added in,
 526                  * along with the EXTRA_PERMISSION_GRANTED field as
 527                  * well.
 528                  *
 529                  * So, in both cases, we get the device name using the
 530                  * same call. We check to see if access was granted,
 531                  * in which case we ignore the device field and do our
 532                  * usual startup thing.
 533                  */
 534
 535                 UsbDevice device = (UsbDevice) intent.getParcelableExtra(UsbManager.EXTRA_DEVICE);
 536                 boolean granted = intent.getBooleanExtra(UsbManager.EXTRA_PERMISSION_GRANTED, true);
 537
 538                 if (D) Log.e(TAG, "intent " + intent + " device " + device + " granted " + granted);
 539
 540                 if (!granted)
 541                         device = null;
 542
 543                 if (device != null) {
 544                         if (D) Log.d(TAG, "intent has usb device " + device.toString());
 545                         connectUsb(device);
 546                 } else {
 547
 548                         /* 'granted' is only false if this intent came
 549                          * from the request_permission call and
 550                          * permission was denied. In which case, we
 551                          * don't want to loop forever...
 552                          */
 553                         if (granted) {
 554                                 if (D) Log.d(TAG, "check for a USB device at startup");
 555                                 if (check_usb())
 556                                         return;
 557                         }
 558                         if (D) Log.d(TAG, "Starting by looking for bluetooth devices");
 559                         if (ensureBluetooth())
 560                                 return;
 561                         finish();
 562                 }
 563         }
 564
 565         @Override
 566         public void onStart() {
 567                 super.onStart();
 568                 if(D) Log.e(TAG, "++ ON START ++");
 569
 570                 noticeIntent(getIntent());
 571
 572                 // Start Telemetry Service
 573                 String  action = start_with_usb ? ACTION_USB : ACTION_BLUETOOTH;
 574
 575                 startService(new Intent(action, null, AltosDroid.this, TelemetryService.class));
 576
 577                 doBindService();
 578
 579                 if (mAltosVoice == null)
 580                         mAltosVoice = new AltosVoice(this);
 581
 582         }
 583
 584         @Override
 585         public void onNewIntent(Intent intent) {
 586                 super.onNewIntent(intent);
 587                 if(D) Log.d(TAG, "onNewIntent");
 588                 noticeIntent(intent);
 589         }
 590
 591         @Override
 592         public void onResume() {
 593                 super.onResume();
 594                 if(D) Log.e(TAG, "+ ON RESUME +");
 595         }
 596
 597         @Override
 598         public void onPause() {
 599                 super.onPause();
 600                 if(D) Log.e(TAG, "- ON PAUSE -");
 601         }
 602
 603         @Override
 604         public void onStop() {
 605                 super.onStop();
 606                 if(D) Log.e(TAG, "-- ON STOP --");
 607
 608                 doUnbindService();
 609                 if (mAltosVoice != null) {
 610                         mAltosVoice.stop();
 611                         mAltosVoice = null;
 612                 }
 613         }
 614
 615         @Override
 616         public void onDestroy() {
 617                 super.onDestroy();
 618                 if(D) Log.e(TAG, "--- ON DESTROY ---");
 619
 620                 if (mAltosVoice != null) mAltosVoice.stop();
 621                 stop_timer();
 622         }
 623
 624         protected void onActivityResult(int requestCode, int resultCode, Intent data) {
 625                 if(D) Log.d(TAG, "onActivityResult " + resultCode);
 626                 switch (requestCode) {
 627                 case REQUEST_CONNECT_DEVICE:
 628                         // When DeviceListActivity returns with a device to connect to
 629                         if (resultCode == Activity.RESULT_OK) {
 630                                 connectDevice(data);
 631                         }
 632                         break;
 633                 case REQUEST_ENABLE_BT:
 634                         // When the request to enable Bluetooth returns
 635                         if (resultCode == Activity.RESULT_OK) {
 636                                 // Bluetooth is now enabled, so set up a chat session
 637                                 //setupChat();
 638                         } else {
 639                                 // User did not enable Bluetooth or an error occured
 640                                 Log.e(TAG, "BT not enabled");
 641                                 stopService(new Intent(AltosDroid.this, TelemetryService.class));
 642                                 Toast.makeText(this, R.string.bt_not_enabled, Toast.LENGTH_SHORT).show();
 643                                 finish();
 644                         }
 645                         break;
 646                 }
 647         }
 648
 649         private void connectUsb(UsbDevice device) {
 650                 if (mService == null)
 651                         pending_usb_device = device;
 652                 else {
 653                         // Attempt to connect to the device
 654                         try {
 655                                 mService.send(Message.obtain(null, TelemetryService.MSG_OPEN_USB, device));
 656                                 if (D) Log.d(TAG, "Sent OPEN_USB message");
 657                         } catch (RemoteException e) {
 658                                 if (D) Log.e(TAG, "connect device message failed");
 659                         }
 660                 }
 661         }
 662
 663         private void connectDevice(Intent data) {
 664                 // Attempt to connect to the device
 665                 try {
 666                         String address = data.getExtras().getString(DeviceListActivity.EXTRA_DEVICE_ADDRESS);
 667                         String name = data.getExtras().getString(DeviceListActivity.EXTRA_DEVICE_NAME);
 668
 669                         if (D) Log.d(TAG, "Connecting to " + address + " " + name);
 670                         DeviceAddress   a = new DeviceAddress(address, name);
 671                         mService.send(Message.obtain(null, TelemetryService.MSG_CONNECT, a));
 672                         if (D) Log.d(TAG, "Sent connecting message");
 673                 } catch (RemoteException e) {
 674                         if (D) Log.e(TAG, "connect device message failed");
 675                 }
 676         }
 677
 678         private void disconnectDevice() {
 679                 try {
 680                         mService.send(Message.obtain(null, TelemetryService.MSG_DISCONNECT, null));
 681                 } catch (RemoteException e) {
 682                 }
 683         }
 684
 685         @Override
 686         public boolean onCreateOptionsMenu(Menu menu) {
 687                 MenuInflater inflater = getMenuInflater();
 688                 inflater.inflate(R.menu.option_menu, menu);
 689                 return true;
 690         }
 691
 692         void setFrequency(double freq) {
 693                 try {
 694                         mService.send(Message.obtain(null, TelemetryService.MSG_SETFREQUENCY, freq));
 695                 } catch (RemoteException e) {
 696                 }
 697         }
 698
 699         void setFrequency(String freq) {
 700                 try {
 701                         setFrequency (Double.parseDouble(freq.substring(11, 17)));
 702                 } catch (NumberFormatException e) {
 703                 }
 704         }
 705
 706         void setBaud(int baud) {
 707                 try {
 708                         mService.send(Message.obtain(null, TelemetryService.MSG_SETBAUD, baud));
 709                 } catch (RemoteException e) {
 710                 }
 711         }
 712
 713         void setBaud(String baud) {
 714                 try {
 715                         int     value = Integer.parseInt(baud);
 716                         int     rate = AltosLib.ao_telemetry_rate_38400;
 717                         switch (value) {
 718                         case 2400:
 719                                 rate = AltosLib.ao_telemetry_rate_2400;
 720                                 break;
 721                         case 9600:
 722                                 rate = AltosLib.ao_telemetry_rate_9600;
 723                                 break;
 724                         case 38400:
 725                                 rate = AltosLib.ao_telemetry_rate_38400;
 726                                 break;
 727                         }
 728                         setBaud(rate);
 729                 } catch (NumberFormatException e) {
 730                 }
 731         }
 732
 733         @Override
 734         public boolean onOptionsItemSelected(MenuItem item) {
 735                 Intent serverIntent = null;
 736                 switch (item.getItemId()) {
 737                 case R.id.connect_scan:
 738                         if (ensureBluetooth()) {
 739                                 // Launch the DeviceListActivity to see devices and do scan
 740                                 serverIntent = new Intent(this, DeviceListActivity.class);
 741                                 startActivityForResult(serverIntent, REQUEST_CONNECT_DEVICE);
 742                         }
 743                         return true;
 744                 case R.id.disconnect:
 745                         /* Disconnect the device
 746                          */
 747                         disconnectDevice();
 748                         return true;
 749                 case R.id.quit:
 750                         Log.d(TAG, "R.id.quit");
 751                         disconnectDevice();
 752                         finish();
 753                         return true;
 754                 case R.id.select_freq:
 755                         // Set the TBT radio frequency
 756
 757                         final String[] frequencies = {
 758                                 "Channel 0 (434.550MHz)",
 759                                 "Channel 1 (434.650MHz)",
 760                                 "Channel 2 (434.750MHz)",
 761                                 "Channel 3 (434.850MHz)",
 762                                 "Channel 4 (434.950MHz)",
 763                                 "Channel 5 (435.050MHz)",
 764                                 "Channel 6 (435.150MHz)",
 765                                 "Channel 7 (435.250MHz)",
 766                                 "Channel 8 (435.350MHz)",
 767                                 "Channel 9 (435.450MHz)"
 768                         };
 769
 770                         AlertDialog.Builder builder_freq = new AlertDialog.Builder(this);
 771                         builder_freq.setTitle("Pick a frequency");
 772                         builder_freq.setItems(frequencies,
 773                                          new DialogInterface.OnClickListener() {
 774                                                  public void onClick(DialogInterface dialog, int item) {
 775                                                          setFrequency(frequencies[item]);
 776                                                  }
 777                                          });
 778                         AlertDialog alert_freq = builder_freq.create();
 779                         alert_freq.show();
 780                         return true;
 781                 case R.id.select_rate:
 782                         // Set the TBT baud rate
 783
 784                         final String[] rates = {
 785                                 "38400",
 786                                 "9600",
 787                                 "2400",
 788                         };
 789
 790                         AlertDialog.Builder builder_rate = new AlertDialog.Builder(this);
 791                         builder_rate.setTitle("Pick a baud rate");
 792                         builder_rate.setItems(rates,
 793                                          new DialogInterface.OnClickListener() {
 794                                                  public void onClick(DialogInterface dialog, int item) {
 795                                                          setBaud(rates[item]);
 796                                                  }
 797                                          });
 798                         AlertDialog alert_rate = builder_rate.create();
 799                         alert_rate.show();
 800                         return true;
 801                 case R.id.change_units:
 802                         boolean imperial = AltosPreferences.imperial_units();
 803                         AltosPreferences.set_imperial_units(!imperial);
 804                         return true;
 805                 }
 806                 return false;
 807         }
 808
 809 }