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   1 /*
   2  * Copyright © 2011 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;
  19
  20 import java.io.*;
  21 import java.util.*;
  22 import java.text.*;
  23 import java.util.prefs.*;
  24 import java.util.concurrent.*;
  25
  26 /*
  27  * Extract a bit of information from an eeprom-stored flight log.
  28  */
  29
  30 public class AltosEepromLog {
  31         public int              serial;
  32         public boolean          has_flight;
  33         public int              flight;
  34         public int              start_block;
  35         public int              end_block;
  36
  37         public int              year, month, day;
  38
  39         public boolean          download;
  40         public boolean          delete;
  41
  42         public AltosEepromLog(AltosConfigData config_data,
  43                               AltosLink link,
  44                               int in_flight, int in_start_block,
  45                               int in_end_block)
  46                 throws InterruptedException, TimeoutException {
  47
  48                 int             block;
  49                 boolean         has_date = false;
  50
  51                 flight = in_flight;
  52                 if (flight != 0)
  53                         has_flight = true;
  54                 start_block = in_start_block;
  55                 end_block = in_end_block;
  56                 serial = config_data.serial;
  57
  58                 /*
  59                  * By default, request that every log be downloaded but not deleted
  60                  */
  61                 download = true;
  62                 delete = false;
  63
  64                 /*
  65                  * Look in TeleMetrum log data for date
  66                  */
  67                 if (config_data.log_format == AltosLib.AO_LOG_FORMAT_UNKNOWN ||
  68                     config_data.log_format == AltosLib.AO_LOG_FORMAT_FULL)
  69                 {
  70                         /*
  71                          * Only look in the first two blocks so that this
  72                          * process doesn't take a long time
  73                          */
  74                         if (in_end_block > in_start_block + 2)
  75                                 in_end_block = in_start_block + 2;
  76
  77                         for (block = in_start_block; block < in_end_block; block++) {
  78                                 AltosEepromChunk eechunk = new AltosEepromChunk(link, block, block == in_start_block);
  79
  80                                 for (int i = 0; i < eechunk.chunk_size; i += AltosEepromRecord.record_length) {
  81                                         try {
  82                                                 AltosEepromRecord r = new AltosEepromRecord(eechunk, i);
  83
  84                                                 if (r.cmd == AltosLib.AO_LOG_FLIGHT) {
  85                                                         flight = r.b;
  86                                                         has_flight = true;
  87                                                 }
  88                                                 if (r.cmd == AltosLib.AO_LOG_GPS_DATE) {
  89                                                         year = 2000 + (r.a & 0xff);
  90                                                         month = (r.a >> 8) & 0xff;
  91                                                         day = (r.b & 0xff);
  92                                                         has_date = true;
  93                                                 }
  94                                         } catch (ParseException pe) {
  95                                         }
  96                                 }
  97                                 if (has_date && has_flight)
  98                                         break;
  99                         }
 100                 }
 101         }
 102 }