// AV400Sim.hxx -- Garmin 400 series protocal class. This AV400Sim // protocol generates the set of "simulator" commands a garmin 400 // series gps would expect as input in simulator mode. The AV400 // protocol generates the set of commands that a garmin 400 series gps // would emit. // // Written by Curtis Olson, started Januar 2009. // // Copyright (C) 2009 Curtis L. Olson - http://www.flightgear.org/~curt // // This program is free software; you can redistribute it and/or // modify it under the terms of the GNU General Public License as // published by the Free Software Foundation; either version 2 of the // License, or (at your option) any later version. // // This program is distributed in the hope that it will be useful, but // WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. // // $Id$ #ifndef _FG_AV400WSIM_HXX #define _FG_AV400WSIM_HXX #include #include #include #include #include "protocol.hxx" using std::string; class FlightProperties; ////////////////////////////////////////////////////////////////////////////// // Class FGAV400WSimA handles the input/output over the first serial port. // This is very similar to the way previous Garmin non-WAAS models communicated // but some items have been stripped out and just a minimal amount of // info is necessary to be transmitted over this port. class FGAV400WSimA : public FGProtocol { char buf[ FG_MAX_MSG_SIZE ]; int length; public: FGAV400WSimA(); ~FGAV400WSimA(); bool gen_message(); bool parse_message(); // open hailing frequencies bool open(); // process work for this port bool process(); // close the channel bool close(); }; ////////////////////////////////////////////////////////////////////////////// // Class FGAV400WSimB handles the input/output over the second serial port // which Garmin refers to as the "GPS Port". Some messages are handled on // fixed cycle (usually 1 and 5 Hz) and some immediate responses are needed // to certain messages upon requet by the GPS unit class FGAV400WSimB : public FGProtocol { char buf[ FG_MAX_MSG_SIZE ]; int length; double hz2; int hz2count; int hz2cycles; char flight_phase; string hal; string val; string sbas_sel; bool req_hostid; bool req_sbas; int outputctr; FlightProperties* fdm; static const int SOM_SIZE = 2; static const int DEG_TO_MILLIARCSECS = ( 60.0 * 60.0 * 1000 ); // Flight Phases static const int PHASE_OCEANIC = 4; static const int PHASE_ENROUTE = 5; static const int PHASE_TERM = 6; static const int PHASE_NONPREC = 7; static const int PHASE_LNAVVNAV = 8; static const int PHASE_LPVLP = 9; public: FGAV400WSimB(); ~FGAV400WSimB(); bool gen_hostid_message(); bool gen_sbas_message(); bool gen_Wh_message(); bool gen_Wx_message(); bool gen_Wt_message(); bool gen_Wm_message(); bool gen_Wv_message(); bool verify_checksum( string message, int datachars ); string asciitize_message( string message ); string buffer_to_string(); bool parse_message(); // open hailing frequencies bool open(); // process work for this port bool process(); // close the channel bool close(); inline double get_hz2() const { return hz2; } inline void set_hz2( double t ) { hz2 = t, hz2cycles = get_hz() / hz2; } }; #endif // _FG_AV400WSIM_HXX