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   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 org.altusmetrum.altoslib_5;
  19
  20 import java.io.*;
  21 import java.util.*;
  22 import java.text.*;
  23
  24 public class AltosEepromTm extends AltosEeprom {
  25         public int      i;
  26         public int      a;
  27         public int      b;
  28
  29         public static final int record_length = 2;
  30
  31         public void write(PrintStream out) {
  32                 out.printf("%c %4x %4x %4x\n", cmd, tick, a, b);
  33         }
  34
  35         public int record_length() { return record_length; }
  36
  37         public String string() {
  38                 return String.format("%c %4x %4x %4x\n", cmd, tick, a, b);
  39         }
  40
  41         public void update_state(AltosState state) {
  42                 super.update_state(state);
  43
  44                 switch (cmd) {
  45                 case AltosLib.AO_LOG_FLIGHT:
  46                         state.set_state(AltosLib.ao_flight_boost);
  47                         state.set_flight(b);
  48                         break;
  49                 case AltosLib.AO_LOG_PRESSURE:
  50                         if (tick == 0)
  51                                 state.set_ground_pressure(AltosConvert.barometer_to_pressure(b));
  52                         else
  53                                 state.set_pressure(AltosConvert.barometer_to_pressure(b));
  54                         break;
  55                 case AltosLib.AO_LOG_STATE:
  56                         state.set_state(a);
  57                         break;
  58                 }
  59         }
  60
  61         public AltosEepromTm (AltosEepromChunk chunk, int start, AltosState state) throws ParseException {
  62                 int     value = chunk.data16(start);
  63
  64                 int     i = (chunk.address + start) / record_length;
  65
  66                 cmd = chunk.data(start);
  67                 valid = true;
  68
  69                 valid = !chunk.erased(start, record_length);
  70
  71                 switch (i) {
  72                 case 0:
  73                         cmd = AltosLib.AO_LOG_FLIGHT;
  74                         tick = 0;
  75                         a = 0;
  76                         b = value;
  77                         break;
  78                 case 1:
  79                         cmd = AltosLib.AO_LOG_PRESSURE;
  80                         tick = 0;
  81                         a = 0;
  82                         b = value;
  83                         break;
  84                 default:
  85                         if ((value & 0x8000) != 0) {
  86                                 cmd = AltosLib.AO_LOG_STATE;
  87                                 tick = state.tick;
  88                                 a = value & 0x7fff;
  89                                 b = 0;
  90                         } else {
  91                                 if (state.ascent)
  92                                         tick = state.tick + 10;
  93                                 else
  94                                         tick = state.tick + 100;
  95                                 cmd = AltosLib.AO_LOG_PRESSURE;
  96                                 a = 0;
  97                                 b = value;
  98                         }
  99                         break;
 100                 }
 101         }
 102
 103         public AltosEepromTm (String line) {
 104                 valid = false;
 105                 tick = 0;
 106                 a = 0;
 107                 b = 0;
 108                 if (line == null) {
 109                         cmd = AltosLib.AO_LOG_INVALID;
 110                 } else {
 111                         try {
 112                                 String[] tokens = line.split("\\s+");
 113
 114                                 if (tokens[0].length() == 1) {
 115                                         if (tokens.length != 4) {
 116                                                 cmd = AltosLib.AO_LOG_INVALID;
 117                                         } else {
 118                                                 cmd = tokens[0].codePointAt(0);
 119                                                 tick = Integer.parseInt(tokens[1],16);
 120                                                 valid = true;
 121                                                 a = Integer.parseInt(tokens[2],16);
 122                                                 b = Integer.parseInt(tokens[3],16);
 123                                         }
 124                                 } else {
 125                                         cmd = AltosLib.AO_LOG_INVALID;
 126                                 }
 127                         } catch (NumberFormatException ne) {
 128                                 cmd = AltosLib.AO_LOG_INVALID;
 129                         }
 130                 }
 131         }
 132
 133         public AltosEepromTm(int in_cmd, int in_tick, int in_a, int in_b) {
 134                 valid = true;
 135                 cmd = in_cmd;
 136                 tick = in_tick;
 137                 a = in_a;
 138                 b = in_b;
 139         }
 140
 141         static public LinkedList<AltosEeprom> read(FileInputStream input) {
 142                 LinkedList<AltosEeprom> tms = new LinkedList<AltosEeprom>();
 143
 144                 for (;;) {
 145                         try {
 146                                 String line = AltosLib.gets(input);
 147                                 if (line == null)
 148                                         break;
 149                                 AltosEepromTm tm = new AltosEepromTm(line);
 150                                 tms.add(tm);
 151                         } catch (IOException ie) {
 152                                 break;
 153                         }
 154                 }
 155
 156                 return tms;
 157         }
 158
 159 }