261 lines
10 KiB
C++
261 lines
10 KiB
C++
// opengc.cxx - Network interface program to send data to display processor over LAN
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//
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// Created by: J. Wojnaroski -- castle@mminternet.com
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// Date: 21 Nov 2001
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//
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// Extended from original network code developed by C. Olson
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//
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// Modified 12/02/01 - Update engine structure for multi-engine models
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// - Added data preamble to id msg types
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//
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// Modified 01/23/02 - Converted portions of the Engine and Gear accesssors to properties
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// - Removed data from navigation functions. OpenGC provides own nav functions
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//
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// Modified 03/05/03 - Modified to reduce need to search property tree for each node per frame
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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., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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#include <simgear/debug/logstream.hxx>
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#include <simgear/io/iochannel.hxx>
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#include <vector>
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#include "opengc.hxx"
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#include <FDM/flight.hxx>
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#include <Main/globals.hxx>
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#include <Cockpit/radiostack.hxx>
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#include <Controls/controls.hxx>
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#include <Main/fg_props.hxx>
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SG_USING_STD(vector);
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FGOpenGC::FGOpenGC() :
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press_node(fgGetNode("/environment/pressure-inhg", true)),
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temp_node(fgGetNode("/environment/temperature-degc", true)),
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wind_dir_node(fgGetNode("/environment/wind-from-heading-deg", true)),
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wind_speed_node(fgGetNode("/environment/wind-speed-kt", true)),
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mag_var_node(fgGetNode("/environment/magnetic-variation-deg", true)),
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p_latitude(fgGetNode("/position/latitude-deg", true)),
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p_longitude(fgGetNode("/position/longitude-deg", true)),
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p_alt_node(fgGetNode("/position/altitude-ft", true)),
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p_altitude(fgGetNode("/steam/altitude-ft", true)),
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p_altitude_agl(fgGetNode("/position/altitude-agl-ft", true)),
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egt0_node(fgGetNode("/engines/engine/egt-degf", true)),
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egt1_node(fgGetNode("/engines/engine[1]/egt-degf", true)),
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egt2_node(fgGetNode("/engines/engine[2]/egt-degf", true)),
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egt3_node(fgGetNode("/engines/engine[3]/egt-degf", true)),
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p_left_aileron(fgGetNode("surface-positions/left-aileron-pos-norm", true)),
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p_right_aileron(fgGetNode("surface-positions/right-aileron-pos-norm", true)),
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p_elevator(fgGetNode("surface-positions/elevator-pos-norm", true)),
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p_elevator_trim(fgGetNode("surface-positions/elevator_trim-pos-norm", true)),
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p_rudder(fgGetNode("surface-positions/rudder-pos-norm", true)),
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p_flaps(fgGetNode("surface-positions/flap-pos-norm", true)),
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p_flaps_cmd(fgGetNode("/controls/flaps", true)),
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p_alphadot(fgGetNode("/fdm/jsbsim/aero/alphadot-radsec", true)),
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p_betadot(fgGetNode("/fdm/jsbsim/aero/betadot-radsec", true))
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{
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}
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FGOpenGC::~FGOpenGC() {
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}
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// open hailing frequencies
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bool FGOpenGC::open() {
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if ( is_enabled() ) {
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SG_LOG( SG_IO, SG_ALERT, "This shouldn't happen, but the channel "
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<< "is already in use, ignoring" );
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return false;
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}
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SGIOChannel *io = get_io_channel();
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if ( ! io->open( get_direction() ) ) {
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SG_LOG( SG_IO, SG_ALERT, "Error opening channel communication layer." );
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return false;
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}
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set_enabled( true );
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return true;
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}
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//static void collect_data( const FGInterface *fdm, ogcFGData *data ) {
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void FGOpenGC::collect_data( const FGInterface *fdm, ogcFGData *data ) {
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data->version_id = OGC_VERSION;
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data->longitude = p_longitude->getDoubleValue();
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data->latitude = p_latitude->getDoubleValue();
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data->elevation = p_alt_node->getDoubleValue();
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data->magvar = mag_var_node->getDoubleValue();
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//cout << "ID: " << OGC_VERSION << " Lon: " << data->longitude << " Lat: " << data->latitude << endl;
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data->pitch = cur_fdm_state->get_Theta_deg();
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data->bank = cur_fdm_state->get_Phi_deg();
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data->heading = cur_fdm_state->get_Psi_deg();
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data->altitude = p_altitude->getDoubleValue();
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data->altitude_agl = p_altitude_agl->getDoubleValue();
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data->v_kcas = cur_fdm_state->get_V_calibrated_kts();
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data->vvi = cur_fdm_state->get_Climb_Rate();
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data->mach = cur_fdm_state->get_Mach_number();
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data->groundspeed = cur_fdm_state->get_V_ground_speed();
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data->v_keas = cur_fdm_state->get_V_equiv_kts();
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data->phi_dot = cur_fdm_state->get_Phi_dot();
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data->theta_dot = cur_fdm_state->get_Theta_dot();
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data->psi_dot = cur_fdm_state->get_Psi_dot();
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data->alpha = cur_fdm_state->get_Alpha();
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data->beta = cur_fdm_state->get_Beta();
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data->alpha_dot = p_alphadot->getDoubleValue();
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data->beta_dot = p_betadot->getDoubleValue();
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//data->rudder_trim = p_Controls->get_rudder_trim();
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data->left_aileron = p_left_aileron->getDoubleValue();
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data->right_aileron = p_right_aileron->getDoubleValue();
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data->elevator = p_elevator->getDoubleValue();
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data->elevator_trim = p_elevator_trim->getDoubleValue();
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data->rudder = p_rudder->getDoubleValue();
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data->flaps = p_flaps->getDoubleValue();
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data->flaps_cmd = p_flaps_cmd->getDoubleValue();
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data->gear_nose = fgGetDouble("gear/gear[0]/position-norm");
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data->gear_left = fgGetDouble("gear/gear[1]/position-norm");
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data->gear_right = fgGetDouble("gear/gear[2]/position-norm");
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data->gear_left_rear = fgGetDouble("gear/gear[3]/position-norm");
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data->gear_right_rear = fgGetDouble("gear/gear[4]/position-norm");
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data->rpm[0] = fgGetDouble("/engines/engine[0]/rpm");
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data->rpm[1] = fgGetDouble("/engines/engine[1]/rpm");
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data->epr[0] = fgGetDouble("/engines/engine[0]/epr");
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data->epr[1] = fgGetDouble("/engines/engine[1]/epr");
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data->epr[2] = fgGetDouble("/engines/engine[2]/epr");
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data->epr[3] = fgGetDouble("/engines/engine[3]/epr");
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data->egt[0] = (egt0_node->getDoubleValue() - 32.0) * 0.555;
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data->egt[1] = (egt1_node->getDoubleValue() - 32.0) * 0.555;
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data->egt[2] = (egt2_node->getDoubleValue() - 32.0) * 0.555;
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data->egt[3] = (egt3_node->getDoubleValue() - 32.0) * 0.555;
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data->n2_turbine[0] = fgGetDouble("/engines/engine[0]/n2");
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data->n2_turbine[1] = fgGetDouble("/engines/engine[1]/n2");
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data->n2_turbine[2] = fgGetDouble("/engines/engine[2]/n2");
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data->n2_turbine[3] = fgGetDouble("/engines/engine[3]/n2");
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data->n1_turbine[0] = fgGetDouble("/engines/engine[0]/n1");
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data->n1_turbine[1] = fgGetDouble("/engines/engine[1]/n1");
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data->n1_turbine[2] = fgGetDouble("/engines/engine[2]/n1");
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data->n1_turbine[3] = fgGetDouble("/engines/engine[3]/n1");
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// the units for turbine engines is lbs/hr divide by 6.5 to convert to gph if piston type
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data->fuel_flow[0] = fgGetDouble("/engines/engine[0]/fuel-flow-gph");
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data->fuel_flow[1] = fgGetDouble("/engines/engine[1]/fuel-flow-gph");
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data->fuel_flow[2] = fgGetDouble("/engines/engine[2]/fuel-flow-gph");
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data->fuel_flow[3] = fgGetDouble("/engines/engine[3]/fuel-flow-gph");
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data->oil_pressure[0] = fgGetDouble("/engines/engine[0]/oil-pressure-psi");
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data->oil_pressure[1] = fgGetDouble("/engines/engine[1]/oil-pressure-psi");
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data->oil_pressure[2] = fgGetDouble("/engines/engine[2]/oil-pressure-psi");
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data->oil_pressure[3] = fgGetDouble("/engines/engine[3]/oil-pressure-psi");
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data->oil_temp[0] = fgGetDouble("/engines/engine[0]/OilTemp_degK");
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data->oil_temp[1] = fgGetDouble("/engines/engine[1]/OilTemp_degK");
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data->oil_temp[2] = fgGetDouble("/engines/engine[2]/OilTemp_degK");
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data->oil_temp[3] = fgGetDouble("/engines/engine[3]/OilTemp_degK");
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// dummy value to fill data packet
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data->oil_quantity[0] = fgGetDouble("/engines/engine[0]/oil-quantity");
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data->oil_quantity[1] = fgGetDouble("/engines/engine[1]/oil-quantity");
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data->oil_quantity[2] = fgGetDouble("/engines/engine[2]/oil-quantity");
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data->oil_quantity[3] = fgGetDouble("/engines/engine[3]/oil-quantity");
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data->oil_quantity[0] = 40.3; data->oil_quantity[1] = 44.6;
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data->hyd_pressure[0] = fgGetDouble("/engines/engine[0]/hyd-pressure-psi");
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data->hyd_pressure[1] = fgGetDouble("/engines/engine[1]/hyd-pressure-psi");
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data->hyd_pressure[2] = fgGetDouble("/engines/engine[2]/hyd-pressure-psi");
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data->hyd_pressure[3] = fgGetDouble("/engines/engine[3]/hyd-pressure-psi");
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data->hyd_pressure[0] = 3215.0; data->hyd_pressure[1] = 3756.0;
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data->man_pressure[0] = fgGetDouble("/engines/engine[0]/mp-osi");
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data->man_pressure[1] = fgGetDouble("/engines/engine[1]/mp-osi");
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data->tank[0] = fgGetDouble("/consumables/fuel/tank[2]/level-gal_us") * 6.6;
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data->tank[1] = fgGetDouble("/consumables/fuel/tank/level-gal_us") * 6.6;
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data->tank[2] = fgGetDouble("/consumables/fuel/tank[1]/level-gal_us") * 6.6;
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//data->tank[0] = 3000.0;
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//data->tank[1] = 9800.0;
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//data->tank[2] = 9800.0;
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data->total_temperature = cur_fdm_state->get_Total_temperature();
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data->total_pressure = cur_fdm_state->get_Total_pressure();
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data->dynamic_pressure = cur_fdm_state->get_Dynamic_pressure();
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data->static_pressure = press_node->getDoubleValue();
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data->static_temperature = temp_node->getDoubleValue();
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data->wind = wind_speed_node->getDoubleValue();
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data->wind_dir = wind_dir_node->getDoubleValue();
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}
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static void distribute_data( const ogcFGData *data, FGInterface *chunk ) {
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// just a place holder until the CDU is developed
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}
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// process work for this port
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bool FGOpenGC::process() {
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SGIOChannel *io = get_io_channel();
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int length = sizeof(buf);
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if ( get_direction() == SG_IO_OUT ) {
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collect_data( cur_fdm_state, &buf );
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//collect_data( &buf );
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if ( ! io->write( (char *)(& buf), length ) ) {
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SG_LOG( SG_IO, SG_WARN, "Error writing data." );
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return false;
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}
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} else if ( get_direction() == SG_IO_IN ) {
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if ( io->get_type() == sgFileType ) {
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if ( io->read( (char *)(& buf), length ) == length ) {
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SG_LOG( SG_IO, SG_DEBUG, "Success reading data." );
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distribute_data( &buf, cur_fdm_state );
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}
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} else {
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while ( io->read( (char *)(& buf), length ) == length ) {
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SG_LOG( SG_IO, SG_DEBUG, "Success reading data." );
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distribute_data( &buf, cur_fdm_state );
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}
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}
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}
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return true;
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}
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// close the channel
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bool FGOpenGC::close() {
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SGIOChannel *io = get_io_channel();
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set_enabled( false );
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if ( ! io->close() ) {
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return false;
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}
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return true;
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}
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