git.gag.com Git - fw/altos/blob - micropeak/MicroSerial.java

   1 /*
   2  * Copyright © 2012 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  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  17  */
  18
  19 package org.altusmetrum.micropeak;
  20
  21 import java.util.*;
  22 import java.io.*;
  23 import libaltosJNI.*;
  24 import org.altusmetrum.altosuilib_14.*;
  25
  26 public class MicroSerial extends InputStream {
  27         SWIGTYPE_p_altos_file   file;
  28         private MicroSerialLog  log;
  29
  30         public int read() {
  31                 if (file == null)
  32                         return -1;
  33                 int     c = libaltos.altos_getchar(file, 0);
  34                 if (Thread.interrupted())
  35                         return -1;
  36                 if (c == -1)
  37                         return -1;
  38                 if (AltosUIPreferences.serial_debug)
  39                         System.out.printf("%c", c);
  40                 if (log != null)
  41                         log.log_char(c);
  42                 return c;
  43         }
  44
  45         public void write(char c) {
  46                 libaltos.altos_putchar(file, c);
  47         }
  48
  49         public void flush() {
  50                 libaltos.altos_flush(file);
  51         }
  52
  53         public void close() {
  54                 if (file != null) {
  55                         libaltos.altos_close(file);
  56                         file = null;
  57                 }
  58         }
  59
  60         public void set_log(MicroSerialLog log) {
  61                 this.log = log;
  62         }
  63
  64         public MicroSerial(AltosDevice device) throws FileNotFoundException {
  65                 file = device.open();
  66                 log = null;
  67                 if (file == null) {
  68                         final String message = device.getErrorString();
  69                         throw new FileNotFoundException(String.format("%s (%s)",
  70                                                                       device.toShortString(),
  71                                                                       message));
  72                 }
  73         }
  74 }