git.gag.com Git - fw/altos/blob - altosui/AltosTelemetryReader.java

   1 /*
   2  * Copyright © 2010 Keith Packard <keithp@keithp.com>
   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 altosui;
  19
  20 import java.lang.*;
  21 import java.text.*;
  22 import java.io.*;
  23 import java.util.concurrent.*;
  24
  25 class AltosTelemetryReader extends AltosFlightReader {
  26         AltosDevice     device;
  27         AltosSerial     serial;
  28         AltosLog        log;
  29         AltosRecord     previous;
  30
  31         LinkedBlockingQueue<AltosLine> telem;
  32
  33         AltosRecord read() throws InterruptedException, ParseException, AltosCRCException, IOException {
  34                 AltosLine l = telem.take();
  35                 if (l.line == null)
  36                         throw new IOException("IO error");
  37                 AltosRecord     next = AltosTelemetry.parse(l.line, previous);
  38                 previous = next;
  39                 return next;
  40         }
  41
  42         void close(boolean interrupted) {
  43                 serial.remove_monitor(telem);
  44                 log.close();
  45                 serial.close();
  46         }
  47
  48         void set_channel(int channel) {
  49                 serial.set_channel(channel);
  50                 AltosPreferences.set_channel(device.getSerial(), channel);
  51         }
  52
  53         void set_telemetry(int telemetry) {
  54                 serial.set_telemetry(telemetry);
  55                 AltosPreferences.set_telemetry(device.getSerial(), telemetry);
  56         }
  57
  58         public AltosTelemetryReader (AltosDevice in_device)
  59                 throws FileNotFoundException, AltosSerialInUseException, IOException {
  60                 device = in_device;
  61                 serial = new AltosSerial(device);
  62                 log = new AltosLog(serial);
  63                 name = device.toShortString();
  64                 previous = null;
  65
  66                 telem = new LinkedBlockingQueue<AltosLine>();
  67                 serial.set_radio();
  68                 serial.add_monitor(telem);
  69         }
  70 }