--- /dev/null
+/*
+ * 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.lang.ref.WeakReference;
+import java.util.concurrent.TimeoutException;
+import java.util.*;
+
+import android.app.Notification;
+//import android.app.NotificationManager;
+import android.app.PendingIntent;
+import android.app.Service;
+import android.bluetooth.BluetoothDevice;
+import android.bluetooth.BluetoothAdapter;
+import android.hardware.usb.*;
+import android.content.Intent;
+import android.content.Context;
+import android.os.Bundle;
+import android.os.IBinder;
+import android.os.Handler;
+import android.os.Message;
+import android.os.Messenger;
+import android.os.RemoteException;
+import android.os.Looper;
+import android.widget.Toast;
+import android.location.Criteria;
+
+import org.altusmetrum.altoslib_13.*;
+
+public class TelemetryService extends Service implements AltosIdleMonitorListener {
+
+ static final int MSG_REGISTER_CLIENT = 1;
+ static final int MSG_UNREGISTER_CLIENT = 2;
+ static final int MSG_CONNECT = 3;
+ static final int MSG_OPEN_USB = 4;
+ static final int MSG_CONNECTED = 5;
+ static final int MSG_CONNECT_FAILED = 6;
+ static final int MSG_DISCONNECTED = 7;
+ static final int MSG_TELEMETRY = 8;
+ static final int MSG_SETFREQUENCY = 9;
+ static final int MSG_CRC_ERROR = 10;
+ static final int MSG_SETBAUD = 11;
+ static final int MSG_DISCONNECT = 12;
+ static final int MSG_DELETE_SERIAL = 13;
+ static final int MSG_BLUETOOTH_ENABLED = 14;
+ static final int MSG_MONITOR_IDLE_START= 15;
+ static final int MSG_MONITOR_IDLE_STOP = 16;
+ static final int MSG_REBOOT = 17;
+ static final int MSG_IGNITER_QUERY = 18;
+ static final int MSG_IGNITER_FIRE = 19;
+
+ // Unique Identification Number for the Notification.
+ // We use it on Notification start, and to cancel it.
+ private int NOTIFICATION = R.string.telemetry_service_label;
+ //private NotificationManager mNM;
+
+ ArrayList<Messenger> clients = new ArrayList<Messenger>(); // Keeps track of all current registered clients.
+ final Handler handler = new IncomingHandler(this);
+ final Messenger messenger = new Messenger(handler); // Target we publish for clients to send messages to IncomingHandler.
+
+ // Name of the connected device
+ DeviceAddress address;
+ private AltosDroidLink altos_link = null;
+ private TelemetryReader telemetry_reader = null;
+ private TelemetryLogger telemetry_logger = null;
+
+ // Local Bluetooth adapter
+ private BluetoothAdapter bluetooth_adapter = null;
+
+ // Last data seen; send to UI when it starts
+ private TelemetryState telemetry_state;
+
+ // Idle monitor if active
+ AltosIdleMonitor idle_monitor = null;
+
+ // Igniter bits
+ AltosIgnite ignite = null;
+ boolean ignite_running;
+
+ // Handler of incoming messages from clients.
+ static class IncomingHandler extends Handler {
+ private final WeakReference<TelemetryService> service;
+ IncomingHandler(TelemetryService s) { service = new WeakReference<TelemetryService>(s); }
+
+ @Override
+ public void handleMessage(Message msg) {
+ DeviceAddress address;
+
+ TelemetryService s = service.get();
+ AltosDroidLink bt = null;
+ if (s == null)
+ return;
+
+ switch (msg.what) {
+
+ /* Messages from application */
+ case MSG_REGISTER_CLIENT:
+ s.add_client(msg.replyTo);
+ break;
+ case MSG_UNREGISTER_CLIENT:
+ s.remove_client(msg.replyTo);
+ break;
+ case MSG_CONNECT:
+ AltosDebug.debug("Connect command received");
+ address = (DeviceAddress) msg.obj;
+ AltosDroidPreferences.set_active_device(address);
+ s.start_altos_bluetooth(address, false);
+ break;
+ case MSG_OPEN_USB:
+ AltosDebug.debug("Open USB command received");
+ UsbDevice device = (UsbDevice) msg.obj;
+ s.start_usb(device);
+ break;
+ case MSG_DISCONNECT:
+ AltosDebug.debug("Disconnect command received");
+ s.address = null;
+ if (!(Boolean) msg.obj)
+ AltosDroidPreferences.set_active_device(null);
+ s.disconnect(true);
+ break;
+ case MSG_DELETE_SERIAL:
+ AltosDebug.debug("Delete Serial command received");
+ s.delete_serial((Integer) msg.obj);
+ break;
+ case MSG_SETFREQUENCY:
+ AltosDebug.debug("MSG_SETFREQUENCY");
+ s.telemetry_state.frequency = (Double) msg.obj;
+ if (s.telemetry_state.connect == TelemetryState.CONNECT_CONNECTED) {
+ try {
+ s.altos_link.set_radio_frequency(s.telemetry_state.frequency);
+ s.altos_link.save_frequency();
+ } catch (InterruptedException e) {
+ } catch (TimeoutException e) {
+ }
+ }
+ s.send_to_clients();
+ break;
+ case MSG_SETBAUD:
+ AltosDebug.debug("MSG_SETBAUD");
+ s.telemetry_state.telemetry_rate = (Integer) msg.obj;
+ if (s.telemetry_state.connect == TelemetryState.CONNECT_CONNECTED) {
+ s.altos_link.set_telemetry_rate(s.telemetry_state.telemetry_rate);
+ s.altos_link.save_telemetry_rate();
+ }
+ s.send_to_clients();
+ break;
+
+ /*
+ *Messages from AltosBluetooth
+ */
+ case MSG_CONNECTED:
+ AltosDebug.debug("MSG_CONNECTED");
+ bt = (AltosDroidLink) msg.obj;
+
+ if (bt != s.altos_link) {
+ AltosDebug.debug("Stale message");
+ break;
+ }
+ AltosDebug.debug("Connected to device");
+ try {
+ s.connected();
+ } catch (InterruptedException ie) {
+ }
+ break;
+ case MSG_CONNECT_FAILED:
+ AltosDebug.debug("MSG_CONNECT_FAILED");
+ bt = (AltosDroidLink) msg.obj;
+
+ if (bt != s.altos_link) {
+ AltosDebug.debug("Stale message");
+ break;
+ }
+ if (s.address != null) {
+ AltosDebug.debug("Connection failed... retrying");
+ s.start_altos_bluetooth(s.address, true);
+ } else {
+ s.disconnect(true);
+ }
+ break;
+ case MSG_DISCONNECTED:
+
+ /* This can be sent by either AltosDroidLink or TelemetryReader */
+ AltosDebug.debug("MSG_DISCONNECTED");
+ bt = (AltosDroidLink) msg.obj;
+
+ if (bt != s.altos_link) {
+ AltosDebug.debug("Stale message");
+ break;
+ }
+ if (s.address != null) {
+ AltosDebug.debug("Connection lost... retrying");
+ s.start_altos_bluetooth(s.address, true);
+ } else {
+ s.disconnect(true);
+ }
+ break;
+
+ /*
+ * Messages from TelemetryReader
+ */
+ case MSG_TELEMETRY:
+ s.telemetry((AltosTelemetry) msg.obj);
+ break;
+ case MSG_CRC_ERROR:
+ // forward crc error messages
+ s.telemetry_state.crc_errors = (Integer) msg.obj;
+ s.send_to_clients();
+ break;
+ case MSG_BLUETOOTH_ENABLED:
+ AltosDebug.debug("TelemetryService notes that BT is now enabled");
+ address = AltosDroidPreferences.active_device();
+ if (address != null && !address.address.startsWith("USB"))
+ s.start_altos_bluetooth(address, false);
+ break;
+ case MSG_MONITOR_IDLE_START:
+ AltosDebug.debug("start monitor idle");
+ s.start_idle_monitor();
+ break;
+ case MSG_MONITOR_IDLE_STOP:
+ AltosDebug.debug("stop monitor idle");
+ s.stop_idle_monitor();
+ break;
+ case MSG_REBOOT:
+ AltosDebug.debug("reboot");
+ s.reboot_remote();
+ break;
+ case MSG_IGNITER_QUERY:
+ AltosDebug.debug("igniter query");
+ s.igniter_query(msg.replyTo);
+ break;
+ case MSG_IGNITER_FIRE:
+ AltosDebug.debug("igniter fire");
+ s.igniter_fire((String) msg.obj);
+ break;
+ default:
+ super.handleMessage(msg);
+ }
+ }
+ }
+
+ /* Handle telemetry packet
+ */
+ private void telemetry(AltosTelemetry telem) {
+ AltosState state;
+
+ if (telemetry_state.states.containsKey(telem.serial()))
+ state = telemetry_state.states.get(telem.serial());
+ else
+ state = new AltosState(new AltosCalData());
+ telem.provide_data(state);
+ telemetry_state.states.put(telem.serial(), state);
+ telemetry_state.quiet = false;
+ if (state != null) {
+ AltosPreferences.set_state(state,telem.serial());
+ }
+ send_to_clients();
+ }
+
+ /* Construct the message to deliver to clients
+ */
+ private Message message() {
+ if (telemetry_state == null)
+ AltosDebug.debug("telemetry_state null!");
+ if (telemetry_state.states == null)
+ AltosDebug.debug("telemetry_state.states null!");
+ return Message.obtain(null, AltosDroid.MSG_STATE, telemetry_state);
+ }
+
+ /* A new friend has connected
+ */
+ private void add_client(Messenger client) {
+
+ clients.add(client);
+ AltosDebug.debug("Client bound to service");
+
+ /* On connect, send the current state to the new client
+ */
+ send_to_client(client);
+ send_idle_mode_to_client(client);
+
+ /* If we've got an address from a previous session, then
+ * go ahead and try to reconnect to the device
+ */
+ if (address != null && telemetry_state.connect == TelemetryState.CONNECT_DISCONNECTED) {
+ AltosDebug.debug("Reconnecting now...");
+ start_altos_bluetooth(address, false);
+ }
+ }
+
+ /* A client has disconnected, clean up
+ */
+ private void remove_client(Messenger client) {
+ clients.remove(client);
+ AltosDebug.debug("Client unbound from service");
+
+ /* When the list of clients is empty, stop the service if
+ * we have no current telemetry source
+ */
+
+ if (clients.isEmpty() && telemetry_state.connect == TelemetryState.CONNECT_DISCONNECTED) {
+ AltosDebug.debug("No clients, no connection. Stopping\n");
+ stopSelf();
+ }
+ }
+
+ private void send_to_client(Messenger client) {
+ Message m = message();
+ try {
+ client.send(m);
+ } catch (RemoteException e) {
+ AltosDebug.error("Client %s disappeared", client.toString());
+ remove_client(client);
+ }
+ }
+
+ private void send_to_clients() {
+ for (Messenger client : clients)
+ send_to_client(client);
+ }
+
+ private void send_idle_mode_to_client(Messenger client) {
+ Message m = Message.obtain(null, AltosDroid.MSG_IDLE_MODE, idle_monitor != null);
+ try {
+ client.send(m);
+ } catch (RemoteException e) {
+ AltosDebug.error("Client %s disappeared", client.toString());
+ remove_client(client);
+ }
+ }
+
+ private void send_idle_mode_to_clients() {
+ for (Messenger client : clients)
+ send_idle_mode_to_client(client);
+ }
+
+ private void telemetry_start() {
+ if (telemetry_reader == null && idle_monitor == null && !ignite_running) {
+ telemetry_reader = new TelemetryReader(altos_link, handler);
+ telemetry_reader.start();
+ }
+ }
+
+ private void telemetry_stop() {
+ if (telemetry_reader != null) {
+ AltosDebug.debug("disconnect(): stopping TelemetryReader");
+ telemetry_reader.interrupt();
+ try {
+ telemetry_reader.join();
+ } catch (InterruptedException e) {
+ }
+ telemetry_reader = null;
+ }
+ }
+
+ private void disconnect(boolean notify) {
+ AltosDebug.debug("disconnect(): begin");
+
+ telemetry_state.connect = TelemetryState.CONNECT_DISCONNECTED;
+ telemetry_state.address = null;
+
+ if (idle_monitor != null)
+ stop_idle_monitor();
+
+ if (altos_link != null)
+ altos_link.closing();
+
+ stop_receiver_voltage_timer();
+
+ telemetry_stop();
+ if (telemetry_logger != null) {
+ AltosDebug.debug("disconnect(): stopping TelemetryLogger");
+ telemetry_logger.stop();
+ telemetry_logger = null;
+ }
+ if (altos_link != null) {
+ AltosDebug.debug("disconnect(): stopping AltosDroidLink");
+ altos_link.close();
+ altos_link = null;
+ ignite = null;
+ }
+ telemetry_state.config = null;
+ if (notify) {
+ AltosDebug.debug("disconnect(): send message to clients");
+ send_to_clients();
+ if (clients.isEmpty()) {
+ AltosDebug.debug("disconnect(): no clients, terminating");
+ stopSelf();
+ }
+ }
+ }
+
+ private void start_usb(UsbDevice device) {
+ AltosUsb d = new AltosUsb(this, device, handler);
+
+ if (d != null) {
+ disconnect(false);
+ altos_link = d;
+ try {
+ connected();
+ } catch (InterruptedException ie) {
+ }
+ }
+ }
+
+ private void delete_serial(int serial) {
+ telemetry_state.states.remove((Integer) serial);
+ AltosPreferences.remove_state(serial);
+ send_to_clients();
+ }
+
+ private void start_altos_bluetooth(DeviceAddress address, boolean pause) {
+ if (bluetooth_adapter == null || !bluetooth_adapter.isEnabled())
+ return;
+
+ disconnect(false);
+
+ // Get the BluetoothDevice object
+ BluetoothDevice device = bluetooth_adapter.getRemoteDevice(address.address);
+
+ this.address = address;
+ AltosDebug.debug("start_altos_bluetooth(): Connecting to %s (%s)", device.getName(), device.getAddress());
+ altos_link = new AltosBluetooth(device, handler, pause);
+ telemetry_state.connect = TelemetryState.CONNECT_CONNECTING;
+ telemetry_state.address = address;
+ send_to_clients();
+ }
+
+ private void start_idle_monitor() {
+ if (altos_link != null && idle_monitor == null) {
+ telemetry_stop();
+ idle_monitor = new AltosIdleMonitor(this, altos_link, true, false);
+ idle_monitor.set_callsign(AltosPreferences.callsign());
+ idle_monitor.start();
+ send_idle_mode_to_clients();
+ }
+ }
+
+ private void stop_idle_monitor() {
+ if (idle_monitor != null) {
+ try {
+ idle_monitor.abort();
+ } catch (InterruptedException ie) {
+ }
+ idle_monitor = null;
+ telemetry_start();
+ send_idle_mode_to_clients();
+ }
+ }
+
+ private void reboot_remote() {
+ if (altos_link != null) {
+ stop_idle_monitor();
+ try {
+ altos_link.start_remote();
+ altos_link.printf("r eboot\n");
+ altos_link.flush_output();
+ } catch (TimeoutException te) {
+ } catch (InterruptedException ie) {
+ } finally {
+ try {
+ altos_link.stop_remote();
+ } catch (InterruptedException ie) {
+ }
+ }
+ }
+ }
+
+ private void ensure_ignite() {
+ if (ignite == null)
+ ignite = new AltosIgnite(altos_link, true, false);
+ }
+
+ private synchronized void igniter_query(Messenger client) {
+ ensure_ignite();
+ HashMap<String,Integer> status_map = null;
+ ignite_running = true;
+ try {
+ stop_idle_monitor();
+ try {
+ status_map = ignite.status();
+ } catch (InterruptedException ie) {
+ AltosDebug.debug("ignite.status interrupted");
+ } catch (TimeoutException te) {
+ AltosDebug.debug("ignite.status timeout");
+ }
+ } finally {
+ ignite_running = false;
+ }
+ Message m = Message.obtain(null, AltosDroid.MSG_IGNITER_STATUS, status_map);
+ try {
+ client.send(m);
+ } catch (RemoteException e) {
+ }
+ }
+
+ private synchronized void igniter_fire(String igniter) {
+ ensure_ignite();
+ ignite_running = true;
+ stop_idle_monitor();
+ try {
+ ignite.fire(igniter);
+ } catch (InterruptedException ie) {
+ } finally {
+ ignite_running = false;
+ }
+ }
+
+ // Timer for receiver battery voltage monitoring
+ Timer receiver_voltage_timer;
+
+ private void update_receiver_voltage() {
+ if (altos_link != null && idle_monitor == null && !ignite_running) {
+ try {
+ double voltage = altos_link.monitor_battery();
+ telemetry_state.receiver_battery = voltage;
+ send_to_clients();
+ } catch (InterruptedException ie) {
+ }
+ }
+ }
+
+ private void stop_receiver_voltage_timer() {
+ if (receiver_voltage_timer != null) {
+ receiver_voltage_timer.cancel();
+ receiver_voltage_timer.purge();
+ receiver_voltage_timer = null;
+ }
+ }
+
+ private void start_receiver_voltage_timer() {
+ if (receiver_voltage_timer == null && altos_link.has_monitor_battery()) {
+ receiver_voltage_timer = new Timer();
+ receiver_voltage_timer.scheduleAtFixedRate(new TimerTask() { public void run() {update_receiver_voltage();}}, 1000L, 10000L);
+ }
+ }
+
+ private void connected() throws InterruptedException {
+ AltosDebug.debug("connected top");
+ AltosDebug.check_ui("connected\n");
+ try {
+ if (altos_link == null)
+ throw new InterruptedException("no bluetooth");
+ telemetry_state.config = altos_link.config_data();
+ altos_link.set_radio_frequency(telemetry_state.frequency);
+ altos_link.set_telemetry_rate(telemetry_state.telemetry_rate);
+ } catch (TimeoutException e) {
+ // If this timed out, then we really want to retry it, but
+ // probably safer to just retry the connection from scratch.
+ AltosDebug.debug("connected timeout");
+ if (address != null) {
+ AltosDebug.debug("connected timeout, retrying");
+ start_altos_bluetooth(address, true);
+ } else {
+ handler.obtainMessage(MSG_CONNECT_FAILED).sendToTarget();
+ disconnect(true);
+ }
+ return;
+ }
+
+ AltosDebug.debug("connected bluetooth configured");
+ telemetry_state.connect = TelemetryState.CONNECT_CONNECTED;
+ telemetry_state.address = address;
+
+ telemetry_start();
+
+ AltosDebug.debug("connected TelemetryReader started");
+
+ telemetry_logger = new TelemetryLogger(this, altos_link);
+
+ start_receiver_voltage_timer();
+
+ AltosDebug.debug("Notify UI of connection");
+
+ send_to_clients();
+ }
+
+
+ @Override
+ public void onCreate() {
+
+ AltosDebug.init(this);
+
+ // Initialise preferences
+ AltosDroidPreferences.init(this);
+
+ // Get local Bluetooth adapter
+ bluetooth_adapter = BluetoothAdapter.getDefaultAdapter();
+
+ telemetry_state = new TelemetryState();
+
+ // Create a reference to the NotificationManager so that we can update our notifcation text later
+ //mNM = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
+
+ telemetry_state.connect = TelemetryState.CONNECT_DISCONNECTED;
+ telemetry_state.address = null;
+
+ /* Pull the saved state information out of the preferences database
+ */
+ ArrayList<Integer> serials = AltosPreferences.list_states();
+
+ telemetry_state.latest_serial = AltosPreferences.latest_state();
+
+ telemetry_state.quiet = true;
+
+ AltosDebug.debug("latest serial %d\n", telemetry_state.latest_serial);
+
+ for (int serial : serials) {
+ AltosState saved_state = AltosPreferences.state(serial);
+ if (saved_state != null) {
+ if (telemetry_state.latest_serial == 0)
+ telemetry_state.latest_serial = serial;
+
+ AltosDebug.debug("recovered old state serial %d flight %d",
+ serial,
+ saved_state.cal_data().flight);
+ if (saved_state.gps != null)
+ AltosDebug.debug("\tposition %f,%f",
+ saved_state.gps.lat,
+ saved_state.gps.lon);
+ telemetry_state.states.put(serial, saved_state);
+ } else {
+ AltosDebug.debug("Failed to recover state for %d", serial);
+ AltosPreferences.remove_state(serial);
+ }
+ }
+ }
+
+ @Override
+ public int onStartCommand(Intent intent, int flags, int startId) {
+ AltosDebug.debug("Received start id %d: %s", startId, intent);
+
+ CharSequence text = getText(R.string.telemetry_service_started);
+
+ // Create notification to be displayed while the service runs
+ Notification notification = new Notification(R.drawable.am_status_c, text, 0);
+
+ // The PendingIntent to launch our activity if the user selects this notification
+ PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
+ new Intent(this, AltosDroid.class), 0);
+
+ // Set the info for the views that show in the notification panel.
+ notification.setLatestEventInfo(this, getText(R.string.telemetry_service_label), text, contentIntent);
+
+ // Set the notification to be in the "Ongoing" section.
+ notification.flags |= Notification.FLAG_ONGOING_EVENT;
+
+ // Move us into the foreground.
+ startForeground(NOTIFICATION, notification);
+
+ /* Start bluetooth if we don't have a connection already */
+ if (intent != null &&
+ (telemetry_state.connect == TelemetryState.CONNECT_NONE ||
+ telemetry_state.connect == TelemetryState.CONNECT_DISCONNECTED))
+ {
+ String action = intent.getAction();
+
+ if (action.equals(AltosDroid.ACTION_BLUETOOTH)) {
+ DeviceAddress address = AltosDroidPreferences.active_device();
+ if (address != null && !address.address.startsWith("USB"))
+ start_altos_bluetooth(address, false);
+ }
+ }
+
+ // We want this service to continue running until it is explicitly
+ // stopped, so return sticky.
+ return START_STICKY;
+ }
+
+ @Override
+ public void onDestroy() {
+
+ // Stop the bluetooth Comms threads
+ disconnect(true);
+
+ // Demote us from the foreground, and cancel the persistent notification.
+ stopForeground(true);
+
+ // Tell the user we stopped.
+ Toast.makeText(this, R.string.telemetry_service_stopped, Toast.LENGTH_SHORT).show();
+ }
+
+ @Override
+ public IBinder onBind(Intent intent) {
+ return messenger.getBinder();
+ }
+
+ /* AltosIdleMonitorListener */
+ public void update(AltosState state, AltosListenerState listener_state) {
+ telemetry_state.states.put(state.cal_data().serial, state);
+ telemetry_state.receiver_battery = listener_state.battery;
+ send_to_clients();
+ }
+
+ public void failed() {
+ }
+
+ public void error(String reason) {
+ stop_idle_monitor();
+ }
+}
projects / fw / altos / blobdiff