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_11;
  16
  17 public class AltosEepromRecordTiny extends AltosEepromRecord {
  18         public static final int record_length = 2;
  19
  20         private int value() {
  21                 return eeprom.data16(start);
  22         }
  23
  24         public int cmd() {
  25                 if (start == 0)
  26                         return AltosLib.AO_LOG_FLIGHT;
  27                 if ((value() & 0x8000) != 0)
  28                         return AltosLib.AO_LOG_STATE;
  29                 return AltosLib.AO_LOG_SENSOR;
  30         }
  31
  32         public int tick() {
  33                 int     tick = 0;
  34                 int     step = 10;
  35                 for (int i = 2; i < start; i += 2)
  36                 {
  37                         int v = eeprom.data16(i);
  38
  39                         if ((v & 0x8000) != 0) {
  40                                 if ((v & 0x7fff) >= AltosLib.ao_flight_drogue)
  41                                         step = 100;
  42                         } else {
  43                                 tick += step;
  44                         }
  45                 }
  46                 return tick;
  47         }
  48
  49         public void update_state(AltosState state) {
  50                 int value = data16(-header_length);
  51
  52                 state.set_tick(tick());
  53                 switch (cmd()) {
  54                 case AltosLib.AO_LOG_FLIGHT:
  55                         state.set_state(AltosLib.ao_flight_pad);
  56                         state.set_flight(value);
  57                         state.set_boost_tick(0);
  58                         break;
  59                 case AltosLib.AO_LOG_STATE:
  60                         state.set_state(value & 0x7fff);
  61                         break;
  62                 case AltosLib.AO_LOG_SENSOR:
  63                         state.set_pressure(AltosConvert.barometer_to_pressure(value));
  64                         break;
  65                 }
  66         }
  67
  68         public AltosEepromRecord next() {
  69                 if (start + record_length * 2 < eeprom.data.size())
  70                         return new AltosEepromRecordTiny(eeprom, start + record_length);
  71                 return null;
  72         }
  73
  74         public AltosEepromRecordTiny(AltosEepromNew eeprom, int start) {
  75                 super(eeprom, start, record_length);
  76         }
  77
  78         public AltosEepromRecordTiny(AltosEepromNew eeprom) {
  79                 this(eeprom, 0);
  80         }
  81 }