git.gag.com Git - fw/altos/blob - ao-tools/altosui/AltosEepromReader.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.awt.*;
  21 import java.awt.event.*;
  22 import javax.swing.*;
  23 import javax.swing.filechooser.FileNameExtensionFilter;
  24 import javax.swing.table.*;
  25 import java.io.*;
  26 import java.util.*;
  27 import java.text.*;
  28 import java.util.prefs.*;
  29 import java.util.concurrent.LinkedBlockingQueue;
  30
  31 import altosui.AltosRecord;
  32 import altosui.AltosState;
  33 import altosui.AltosDeviceDialog;
  34 import altosui.AltosPreferences;
  35 import altosui.AltosLog;
  36 import altosui.AltosVoice;
  37 import altosui.AltosEepromMonitor;
  38
  39 public class AltosEepromReader {
  40
  41         static final int        seen_flight = 1;
  42         static final int        seen_sensor = 2;
  43         static final int        seen_temp_volt = 4;
  44         static final int        seen_deploy = 8;
  45
  46         static final int        seen_basic = seen_flight|seen_sensor|seen_temp_volt|seen_deploy;
  47
  48         static final int        seen_gps_time = 16;
  49
  50         AltosRecord             state;
  51         AltosEepromRecord       record;
  52
  53         int                     seen;
  54
  55         int                     tick;
  56
  57         boolean                 done;
  58
  59         FileInputStream input;
  60
  61         public AltosRecord read() throws IOException, ParseException {
  62                 for (;;) {
  63                         if (record == null) {
  64                                 record = new AltosEepromRecord(AltosRecord.gets(input));
  65                                 if (record == null) {
  66                                         if (done)
  67                                                 return null;
  68                                         return state;
  69                                 }
  70
  71                                 /* eeprom only records low 16 bits of tick count */
  72                                 int tick = record.tick | (state.tick & ~0xffff);
  73
  74                                 if (tick < state.tick) {
  75                                         if (state.tick - tick > 0x8000)
  76                                                 tick += 0x10000;
  77                                         else
  78                                                 tick = state.tick;
  79                                 }
  80
  81                                 /* Accumulate data in the state record while
  82                                  * the time stamp is not increasing
  83                                  */
  84
  85                                 if ((seen & seen_basic) == seen_basic && tick > state.tick)
  86                                         return new AltosRecord(state);
  87                         }
  88
  89                         state.tick = tick;
  90                         switch (record.cmd) {
  91                         case Altos.AO_LOG_FLIGHT:
  92                                 state.ground_accel = record.a;
  93                                 state.flight = record.b;
  94                                 break;
  95                         case Altos.AO_LOG_SENSOR:
  96                                 state.accel = record.a;
  97                                 state.pres = record.b;
  98                                 break;
  99                         case Altos.AO_LOG_TEMP_VOLT:
 100                                 state.temp = record.a;
 101                                 state.batt = record.b;
 102                                 break;
 103                         case Altos.AO_LOG_DEPLOY:
 104                                 state.drogue = record.a;
 105                                 state.main = record.b;
 106                                 break;
 107                         case Altos.AO_LOG_GPS_TIME:
 108                                 break;
 109                         }
 110                         record = null;
 111                 }
 112         }
 113
 114         public AltosEepromReader (FileInputStream in_input) {
 115                 state = new AltosRecord();
 116                 input = in_input;
 117                 seen = 0;
 118                 done = false;
 119         }
 120 }