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 import org.altusmetrum.AltosLib.*;
  25
  26 class AltosTelemetryReader extends AltosFlightReader {
  27         AltosDevice     device;
  28         AltosSerial     serial;
  29         AltosLog        log;
  30         AltosRecord     previous;
  31         double          frequency;
  32         int             telemetry;
  33
  34         LinkedBlockingQueue<AltosLine> telem;
  35
  36         AltosRecord read() throws InterruptedException, ParseException, AltosCRCException, IOException {
  37                 AltosLine l = telem.take();
  38                 if (l.line == null)
  39                         throw new IOException("IO error");
  40                 AltosRecord     next = AltosTelemetry.parse(l.line, previous);
  41                 previous = next;
  42                 return next;
  43         }
  44
  45         void flush() {
  46                 telem.clear();
  47         }
  48
  49         void close(boolean interrupted) {
  50                 serial.remove_monitor(telem);
  51                 log.close();
  52                 serial.close();
  53         }
  54
  55         public void set_frequency(double in_frequency) throws InterruptedException, TimeoutException {
  56                 frequency = in_frequency;
  57                 serial.set_radio_frequency(frequency);
  58         }
  59
  60         public boolean supports_telemetry(int telemetry) {
  61
  62                 try {
  63                         /* Version 1.0 or later firmware supports all telemetry formats */
  64                         if (serial.config_data().compare_version("1.0") >= 0)
  65                                 return true;
  66
  67                         /* Version 0.9 firmware only supports 0.9 telemetry */
  68                         if (serial.config_data().compare_version("0.9") >= 0) {
  69                                 if (telemetry == Altos.ao_telemetry_0_9)
  70                                         return true;
  71                                 else
  72                                         return false;
  73                         }
  74
  75                         /* Version 0.8 firmware only supports 0.8 telemetry */
  76                         if (telemetry == Altos.ao_telemetry_0_8)
  77                                 return true;
  78                         else
  79                                 return false;
  80                 } catch (InterruptedException ie) {
  81                         return true;
  82                 } catch (TimeoutException te) {
  83                         return true;
  84                 }
  85         }
  86
  87         void save_frequency() {
  88                 AltosPreferences.set_frequency(device.getSerial(), frequency);
  89         }
  90
  91         void set_telemetry(int in_telemetry) {
  92                 telemetry = in_telemetry;
  93                 serial.set_telemetry(telemetry);
  94         }
  95
  96         void save_telemetry() {
  97                 AltosPreferences.set_telemetry(device.getSerial(), telemetry);
  98         }
  99
 100         File backing_file() {
 101                 return log.file();
 102         }
 103
 104         public AltosTelemetryReader (AltosDevice in_device)
 105                 throws FileNotFoundException, AltosSerialInUseException, IOException, InterruptedException, TimeoutException {
 106                 device = in_device;
 107                 serial = new AltosSerial(device);
 108                 log = new AltosLog(serial);
 109                 name = device.toShortString();
 110                 previous = null;
 111
 112                 telem = new LinkedBlockingQueue<AltosLine>();
 113                 frequency = AltosPreferences.frequency(device.getSerial());
 114                 set_frequency(frequency);
 115                 telemetry = AltosPreferences.telemetry(device.getSerial());
 116                 set_telemetry(telemetry);
 117                 serial.set_callsign(AltosUIPreferences.callsign());
 118                 serial.add_monitor(telem);
 119         }
 120 }