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   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.altoslib_14;
  20
  21 import java.util.concurrent.*;
  22
  23 public class AltosMma655x implements Cloneable {
  24
  25         private int     accel;
  26
  27         public boolean parse_line(String line) throws NumberFormatException {
  28                 if (line.startsWith("MMA655X value")) {
  29                         String[] items = line.split("\\s+");
  30                         if (items.length >= 3) {
  31                                 accel = Integer.parseInt(items[2]);
  32                                 return true;
  33                         }
  34                 }
  35                 return false;
  36         }
  37
  38         public AltosMma655x() {
  39                 accel = AltosLib.MISSING;
  40         }
  41
  42         public AltosMma655x clone() {
  43                 AltosMma655x    n = new AltosMma655x();
  44
  45                 n.accel = accel;
  46                 return n;
  47         }
  48
  49         static public void provide_data(AltosDataListener listener, AltosLink link) throws InterruptedException, AltosUnknownProduct {
  50                 try {
  51                         AltosMma655x    mma655x = new AltosMma655x(link);
  52                         AltosCalData    cal_data = listener.cal_data();
  53
  54                         if (mma655x != null) {
  55                                 int accel = mma655x.accel;
  56                                 if (cal_data.mma655x_inverted)
  57                                         accel = 4095 - accel;
  58                                 if (cal_data.pad_orientation == AltosLib.AO_PAD_ORIENTATION_ANTENNA_DOWN)
  59                                         accel = 4095 - accel;
  60                                 listener.set_acceleration(cal_data.acceleration(accel));
  61                         }
  62                 } catch (TimeoutException te) {
  63                 } catch (NumberFormatException ne) {
  64                 }
  65         }
  66
  67         public AltosMma655x(AltosLink link) throws InterruptedException, TimeoutException, NumberFormatException {
  68                 this();
  69                 link.printf("A\n");
  70                 for (;;) {
  71                         String line = link.get_reply_no_dialog(5000);
  72                         if (line == null)
  73                                 throw new TimeoutException();
  74                         if (parse_line(line))
  75                                 break;
  76                 }
  77         }
  78 }