1 // ATC-Inputs.hxx -- Translate ATC hardware inputs to FGFS properties
2 //
3 // Written by Curtis Olson, started November 2004.
4 //
5 // Copyright (C) 2004  Curtis L. Olson - http://www.flightgear.org/~curt
6 //
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License as
9 // published by the Free Software Foundation; either version 2 of the
10 // License, or (at your option) any later version.
11 //
12 // This program is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15 // General Public License for more details.
16 //
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, write to the Free Software
19 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
20 //
21 // $Id$
22 
23 
24 #ifndef _FG_ATC_INPUTS_HXX
25 #define _FG_ATC_INPUTS_HXX
26 
27 #ifdef HAVE_CONFIG_H
28 #  include <config.h>
29 #endif
30 
31 #include <Main/fg_props.hxx>
32 
33 #define ATC_ANAL_IN_VALUES 32
34 #define ATC_ANAL_IN_BYTES (2 * ATC_ANAL_IN_VALUES)
35 #define ATC_RADIO_SWITCH_BYTES 32
36 #define ATC_SWITCH_BYTES 16
37 #define ATC_NUM_COLS 8
38 
39 
40 class FGATCInput {
41 
42     int is_open;
43 
44     int board;
45     SGPath config;
46 
47     int analog_in_fd;
48     int radios_fd;
49     int switches_fd;
50 
51     char analog_in_file[256];
52     char radios_file[256];
53     char switches_file[256];
54 
55     unsigned char analog_in_bytes[ATC_ANAL_IN_BYTES];
56     int analog_in_data[ATC_ANAL_IN_VALUES];
57     unsigned char radio_switch_data[ATC_RADIO_SWITCH_BYTES];
58     unsigned char switch_data[ATC_SWITCH_BYTES];
59 
60     SGPropertyNode_ptr ignore_flight_controls;
61     SGPropertyNode_ptr ignore_pedal_controls;
62 
63     SGPropertyNode_ptr analog_in_node;
64     SGPropertyNode_ptr radio_in_node;
65     SGPropertyNode_ptr switches_node;
66 
67     void init_config();
68     bool do_analog_in();
69     bool do_radio_switches();
70     bool do_switches();
71 
72 public:
73 
74     // Constructor: The _board parameter specifies which board to
75     // reference.  Possible values are 0 or 1.  The _config_file
76     // parameter specifies the location of the input config file (xml)
77     FGATCInput( const int _board, const SGPath &_config_file );
78 
79     // Destructor
~FGATCInput()80     ~FGATCInput() { }
81 
82     bool open();
83 
84     // process the hardware inputs.  This code assumes the calling
85     // layer will lock the hardware.
86     bool process();
87 
88     bool close();
89 };
90 
91 
92 #endif // _FG_ATC_INPUTS_HXX
93