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

   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_3;
  19
  20 import java.io.*;
  21 import java.util.*;
  22 import java.text.*;
  23 import java.util.concurrent.*;
  24
  25 /*
  26  * Temporary structure to hold the list of stored flights;
  27  * each of these will be queried in turn to generate more
  28  * complete information
  29  */
  30
  31 class AltosEepromFlight {
  32         int     flight;
  33         int     start;
  34         int     end;
  35
  36         public AltosEepromFlight(int in_flight, int in_start, int in_end) {
  37                 flight = in_flight;
  38                 start = in_start;
  39                 end = in_end;
  40         }
  41 }
  42
  43 /*
  44  * Construct a list of flights available in a connected device
  45  */
  46
  47 public class AltosEepromList extends ArrayList<AltosEepromLog> {
  48         public AltosConfigData  config_data;
  49
  50         public AltosEepromList (AltosLink link, boolean remote)
  51                 throws IOException, InterruptedException, TimeoutException
  52         {
  53                 try {
  54                         if (remote)
  55                                 link.start_remote();
  56                         config_data = new AltosConfigData (link);
  57 //                      if (config_data.serial == 0)
  58 //                              throw new IOException("no serial number found");
  59
  60                         ArrayList<AltosEepromFlight> flights = new ArrayList<AltosEepromFlight>();
  61
  62                         if (config_data.flight_log_max != 0 || config_data.log_format != 0) {
  63
  64                                 /* Devices with newer firmware will support the 'l'
  65                                  * command which will list the region of storage
  66                                  * occupied by each available flight
  67                                  */
  68                                 link.printf("l\n");
  69                                 for (;;) {
  70                                         String line = link.get_reply(5000);
  71                                         if (line == null)
  72                                                 throw new TimeoutException();
  73                                         if (line.contains("done"))
  74                                                 break;
  75                                         if (line.contains("Syntax"))
  76                                                 continue;
  77                                         String[] tokens = line.split("\\s+");
  78                                         if (tokens.length < 6)
  79                                                 break;
  80
  81                                         int     flight = -1, start = -1, end = -1;
  82                                         try {
  83                                                 if (tokens[0].equals("flight"))
  84                                                         flight = AltosParse.parse_int(tokens[1]);
  85                                                 if (tokens[2].equals("start"))
  86                                                         start = AltosParse.parse_hex(tokens[3]);
  87                                                 if (tokens[4].equals("end"))
  88                                                         end = AltosParse.parse_hex(tokens[5]);
  89                                                 if (flight > 0 && start >= 0 && end > 0)
  90                                                         flights.add(new AltosEepromFlight(flight, start, end));
  91                                         } catch (ParseException pe) { System.out.printf("Parse error %s\n", pe.toString()); }
  92                                 }
  93                         } else {
  94
  95                                 /* Older devices will hold only a single
  96                                  * flight. This also assumes that any older
  97                                  * device will have a 1MB flash device
  98                                  */
  99                                 flights.add(new AltosEepromFlight(0, 0, 0xfff));
 100                         }
 101
 102                         /* With the list of flights collected, collect more complete
 103                          * information on them by reading the first block or two of
 104                          * data. This will add GPS coordinates and a date. For older
 105                          * firmware, this will also extract the flight number.
 106                          */
 107                         for (AltosEepromFlight flight : flights) {
 108                                 add(new AltosEepromLog(config_data, link,
 109                                                        flight.flight, flight.start, flight.end));
 110                         }
 111                 } finally {
 112                         if (remote)
 113                                 link.stop_remote();
 114                         link.flush_output();
 115                 }
 116         }
 117 }