git.gag.com Git - fw/altos/blob - altoslib/AltosEepromRecordTiny.java

   1 /*
   2  * Copyright © 2017 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, either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  */
  14
  15 package org.altusmetrum.altoslib_14;
  16
  17 public class AltosEepromRecordTiny extends AltosEepromRecord implements AltosDataProvider {
  18         public static final int record_length = 2;
  19
  20         private int value() {
  21                 return eeprom.data16(start);
  22         }
  23
  24         public boolean valid(int s) {
  25                 return eeprom.data16(s) != 0xffff;
  26         }
  27
  28         public int cmd() {
  29                 if (start == 0)
  30                         return AltosLib.AO_LOG_FLIGHT;
  31                 if ((value() & 0x8000) != 0)
  32                         return AltosLib.AO_LOG_STATE;
  33                 return AltosLib.AO_LOG_SENSOR;
  34         }
  35
  36         public int tick() {
  37                 int     tick = 0;
  38                 int     step = 10;
  39                 for (int i = 2; i < start; i += 2)
  40                 {
  41                         int v = eeprom.data16(i);
  42
  43                         if ((v & 0x8000) != 0) {
  44                                 if ((v & 0x7fff) >= AltosLib.ao_flight_drogue)
  45                                         step = 100;
  46                         } else {
  47                                 tick += step;
  48                         }
  49                 }
  50                 return tick;
  51         }
  52
  53         public void provide_data(AltosDataListener listener) {
  54                 int value = data16(-header_length);
  55
  56                 listener.set_tick(tick());
  57                 switch (cmd()) {
  58                 case AltosLib.AO_LOG_FLIGHT:
  59                         listener.set_state(AltosLib.ao_flight_pad);
  60                         listener.cal_data().set_flight(value);
  61                         listener.cal_data().set_boost_tick();
  62                         break;
  63                 case AltosLib.AO_LOG_STATE:
  64                         listener.set_state(value & 0x7fff);
  65                         break;
  66                 case AltosLib.AO_LOG_SENSOR:
  67                         listener.set_pressure(AltosConvert.barometer_to_pressure(value));
  68                         break;
  69                 }
  70         }
  71
  72         public AltosEepromRecord next() {
  73                 int     s = next_start();
  74                 if (s < 0)
  75                         return null;
  76                 return new AltosEepromRecordTiny(eeprom, s);
  77         }
  78
  79         public AltosEepromRecordTiny(AltosEeprom eeprom, int start) {
  80                 super(eeprom, start, record_length);
  81         }
  82
  83         public AltosEepromRecordTiny(AltosEeprom eeprom) {
  84                 this(eeprom, 0);
  85         }
  86 }