143 lines
3.8 KiB
C++
143 lines
3.8 KiB
C++
// AV400Sim.hxx -- Garmin 400 series protocal class. This AV400Sim
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// protocol generates the set of "simulator" commands a garmin 400
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// series gps would expect as input in simulator mode. The AV400
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// protocol generates the set of commands that a garmin 400 series gps
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// would emit.
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//
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// Written by Curtis Olson, started Januar 2009.
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//
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// Copyright (C) 2009 Curtis L. Olson - http://www.flightgear.org/~curt
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
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// $Id$
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#ifndef _FG_AV400WSIM_HXX
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#define _FG_AV400WSIM_HXX
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#include <simgear/compiler.h>
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#include <stdlib.h>
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#include <string.h>
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#include <string>
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#include "protocol.hxx"
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using std::string;
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class FlightProperties;
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//////////////////////////////////////////////////////////////////////////////
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// Class FGAV400WSimA handles the input/output over the first serial port.
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// This is very similar to the way previous Garmin non-WAAS models communicated
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// but some items have been stripped out and just a minimal amount of
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// info is necessary to be transmitted over this port.
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class FGAV400WSimA : public FGProtocol {
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char buf[ FG_MAX_MSG_SIZE ];
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int length;
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public:
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FGAV400WSimA();
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~FGAV400WSimA();
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bool gen_message();
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bool parse_message();
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// open hailing frequencies
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bool open();
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// process work for this port
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bool process();
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// close the channel
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bool close();
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};
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//////////////////////////////////////////////////////////////////////////////
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// Class FGAV400WSimB handles the input/output over the second serial port
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// which Garmin refers to as the "GPS Port". Some messages are handled on
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// fixed cycle (usually 1 and 5 Hz) and some immediate responses are needed
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// to certain messages upon requet by the GPS unit
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class FGAV400WSimB : public FGProtocol {
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char buf[ FG_MAX_MSG_SIZE ];
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int length;
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double hz2;
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int hz2count;
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int hz2cycles;
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char flight_phase;
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string hal;
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string val;
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string sbas_sel;
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bool req_hostid;
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bool req_sbas;
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int outputctr;
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FlightProperties* fdm;
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static const int SOM_SIZE = 2;
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static const int DEG_TO_MILLIARCSECS = ( 60 * 60 * 1000 );
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// Flight Phases
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static const int PHASE_OCEANIC = 4;
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static const int PHASE_ENROUTE = 5;
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static const int PHASE_TERM = 6;
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static const int PHASE_NONPREC = 7;
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static const int PHASE_LNAVVNAV = 8;
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static const int PHASE_LPVLP = 9;
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public:
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FGAV400WSimB();
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~FGAV400WSimB();
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bool gen_hostid_message();
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bool gen_sbas_message();
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bool gen_Wh_message();
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bool gen_Wx_message();
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bool gen_Wt_message();
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bool gen_Wm_message();
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bool gen_Wv_message();
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bool verify_checksum( string message, int datachars );
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string asciitize_message( string message );
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string buffer_to_string();
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bool parse_message();
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// open hailing frequencies
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bool open();
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// process work for this port
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bool process();
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// close the channel
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bool close();
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inline double get_hz2() const { return hz2; }
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inline void set_hz2( double t ) { hz2 = t, hz2cycles = get_hz() / hz2; }
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};
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#endif // _FG_AV400WSIM_HXX
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