1 // LFSGlass.cxx - Network interface program to send data to display processor over LAN
3 // Created by: J. Wojnaroski -- castle@mminternet.com
6 // Extended from original network code developed by C. Olson
8 // Modified 12/02/01 - Update engine structure for multi-engine models
9 // - Added data preamble to id msg types
11 // Modified 01/23/02 - Converted portions of the Engine and Gear accesssors to properties
12 // - Removed data from navigation functions. Glass provides own nav functions
14 // Modified 03/05/03 - Modified to reduce need to search property tree for each node per frame
16 // This program is free software; you can redistribute it and/or
17 // modify it under the terms of the GNU General Public License as
18 // published by the Free Software Foundation; either version 2 of the
19 // License, or (at your option) any later version.
21 // This program is distributed in the hope that it will be useful, but
22 // WITHOUT ANY WARRANTY; without even the implied warranty of
23 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
24 // General Public License for more details.
26 // You should have received a copy of the GNU General Public License
27 // along with this program; if not, write to the Free Software
28 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
31 #include <simgear/debug/logstream.hxx>
32 #include <simgear/io/iochannel.hxx>
36 #include "lfsglass.hxx"
37 #include <FDM/flight.hxx>
38 #include <Main/globals.hxx>
39 #include <Main/fg_props.hxx>
43 FGLFSGlass::FGLFSGlass() :
44 press_node(fgGetNode("/environment/pressure-inhg[0]", true)),
45 temp_node(fgGetNode("/environment/temperature-degc[0]", true)),
46 wind_dir_node(fgGetNode("/environment/wind-from-heading-deg[0]", true)),
47 wind_speed_node(fgGetNode("/environment/wind-speed-kt[0]", true)),
48 magvar_node(fgGetNode("/environment/magnetic-variation-deg[0]", true)),
49 p_latitude(fgGetNode("/position/latitude-deg", true)),
50 p_longitude(fgGetNode("/position/longitude-deg", true)),
51 p_elev_node(fgGetNode("/position/altitude-ft", true)),
52 p_altitude_agl(fgGetNode("/position/altitude-agl-ft", true)),
53 p_pitch(fgGetNode("/orientation/pitch-deg[0]", true)),
54 p_bank(fgGetNode("/orientation/roll-deg[0]", true)),
55 p_heading(fgGetNode("/orientation/heading-magnetic-deg[0]", true)),
56 p_yaw(fgGetNode("/fdm/jsbsim/aero/beta-rad[0]", true)),
57 p_yaw_rate(fgGetNode("/fdm/jsbsim/aero/betadot-rad_sec[0]", true)),
58 vel_kcas(fgGetNode("/velocities/airspeed-kt[0]", true)),
59 p_vvi(fgGetNode("/velocities/vertical-speed-fps[0]", true )),
60 p_mach(fgGetNode("/velocities/mach[0]", true )),
61 p_left_aileron(fgGetNode("surface-positions/left-aileron-pos-norm", true)),
62 p_right_aileron(fgGetNode("surface-positions/right-aileron-pos-norm", true)),
63 p_elevator(fgGetNode("surface-positions/elevator-pos-norm", true)),
64 p_elevator_trim(fgGetNode("surface-positions/elevator_trim-pos-norm", true)),
65 p_rudder(fgGetNode("surface-positions/rudder-pos-norm", true)),
66 p_flaps(fgGetNode("surface-positions/flap-pos-norm", true)),
67 p_flaps_cmd(fgGetNode("/controls/flight/flaps", true)),
68 p_park_brake(fgGetNode("/controls/gear/brake-parking", true)),
69 egt0_node(fgGetNode("/engines/engine/EGT_degC[0]", true)),
70 egt1_node(fgGetNode("/engines/engine[1]/EGT_degC[0]", true)),
71 egt2_node(fgGetNode("/engines/engine[2]/EGT_degC[0]", true)),
72 egt3_node(fgGetNode("/engines/engine[3]/EGT_degC[0]", true)),
73 epr0_node(fgGetNode("/engines/engine/EPR[0]", true)),
74 epr1_node(fgGetNode("/engines/engine[1]/EPR[0]", true)),
75 epr2_node(fgGetNode("/engines/engine[2]/EPR[0]", true)),
76 epr3_node(fgGetNode("/engines/engine[3]/EPR[0]", true)),
77 n10_node(fgGetNode("/engines/engine/N1[0]", true)),
78 n11_node(fgGetNode("/engines/engine[1]/N1[0]", true)),
79 n12_node(fgGetNode("/engines/engine[2]/N1[0]", true)),
80 n13_node(fgGetNode("/engines/engine[3]/N1[0]", true)),
81 n20_node(fgGetNode("/engines/engine/N2[0]", true)),
82 n21_node(fgGetNode("/engines/engine[1]/N2[0]", true)),
83 n22_node(fgGetNode("/engines/engine[2]/N2[0]", true)),
84 n23_node(fgGetNode("/engines/engine[3]/N2[0]", true)),
85 oil_temp0(fgGetNode("engines/engine/oil-temp-degF[0]", true)),
86 oil_temp1(fgGetNode("engines/engine[1]/oil-temp-degF[0]", true)),
87 oil_temp2(fgGetNode("engines/engine[2]/oil-temp-degF[0]", true)),
88 oil_temp3(fgGetNode("engines/engine[3]/oil-temp-degF[0]", true)),
89 tank0_node(fgGetNode("/consumables/fuel/tank/level-lb[0]", true)),
90 tank1_node(fgGetNode("/consumables/fuel/tank[1]/level-lb[0]", true)),
91 tank2_node(fgGetNode("/consumables/fuel/tank[2]/level-lb[0]", true)),
92 tank3_node(fgGetNode("/consumables/fuel/tank[3]/level-lb[0]", true)),
93 tank4_node(fgGetNode("/consumables/fuel/tank[4]/level-lb[0]", true)),
94 tank5_node(fgGetNode("/consumables/fuel/tank[5]/level-lb[0]", true)),
95 tank6_node(fgGetNode("/consumables/fuel/tank[6]/level-lb[0]", true)),
96 tank7_node(fgGetNode("/consumables/fuel/tank[7]/level-lb[0]", true)),
97 p_alphadot(fgGetNode("/fdm/jsbsim/aero/alphadot-rad_sec[0]", true)),
98 p_betadot(fgGetNode("/fdm/jsbsim/aero/betadot-rad_sec[0]", true))
103 FGLFSGlass::~FGLFSGlass() {
106 // open hailing frequencies
107 bool FGLFSGlass::open() {
108 if ( is_enabled() ) {
109 SG_LOG( SG_IO, SG_ALERT, "This shouldn't happen, but the channel "
110 << "is already in use, ignoring" );
114 SGIOChannel *io = get_io_channel();
116 if ( ! io->open( get_direction() ) ) {
117 SG_LOG( SG_IO, SG_ALERT, "Error opening channel communication layer." );
126 //static void collect_data( const FGInterface *fdm, ogcFGData *data ) {
127 void FGLFSGlass::collect_data( const FGInterface *fdm, FGLFSGlassData *data ) {
128 data->version_id = OGC_VERSION;
130 data->longitude = p_longitude->getDoubleValue();
131 data->latitude = p_latitude->getDoubleValue();
132 data->elevation = p_elev_node->getDoubleValue();
133 data->magvar = magvar_node->getDoubleValue();
135 data->pitch = p_pitch->getDoubleValue();
136 data->bank = p_bank->getDoubleValue();
137 data->heading = p_heading->getDoubleValue();
138 //data->altitude = p_altitude->getDoubleValue();
139 data->altitude_agl = p_altitude_agl->getDoubleValue();
141 data->vvi = p_vvi->getDoubleValue();
142 data->mach = p_mach->getDoubleValue();
143 data->groundspeed = cur_fdm_state->get_V_ground_speed();
144 data->v_keas = cur_fdm_state->get_V_equiv_kts();
145 data->v_kcas = vel_kcas->getDoubleValue();
148 data->phi_dot = cur_fdm_state->get_Phi_dot();
149 data->theta_dot = cur_fdm_state->get_Theta_dot();
150 data->psi_dot = cur_fdm_state->get_Psi_dot();
152 data->alpha = cur_fdm_state->get_Alpha();
153 data->beta = p_yaw->getDoubleValue();
154 data->alpha_dot = p_alphadot->getDoubleValue();
155 data->beta_dot = p_yaw_rate->getDoubleValue();
157 //data->rudder_trim = p_Controls->get_rudder_trim();
158 data->parking_brake = p_park_brake->getDoubleValue();
160 data->left_aileron = p_left_aileron->getDoubleValue();
161 data->right_aileron = p_right_aileron->getDoubleValue();
162 data->elevator = p_elevator->getDoubleValue();
163 data->elevator_trim = p_elevator_trim->getDoubleValue();
164 data->rudder = p_rudder->getDoubleValue();
165 data->flaps = p_flaps->getDoubleValue();
166 data->flaps_cmd = p_flaps_cmd->getDoubleValue();
168 data->gear_nose = fgGetDouble("gear/gear[0]/position-norm[0]");
169 data->gear_left = fgGetDouble("gear/gear[1]/position-norm[0]");
170 data->gear_right = fgGetDouble("gear/gear[2]/position-norm[0]");
171 data->gear_left_rear = fgGetDouble("gear/gear[3]/position-norm[0]");
172 data->gear_right_rear = fgGetDouble("gear/gear[4]/position-norm[0]");
173 data->parking_brake = p_park_brake->getDoubleValue();
174 data->wow_main = fgGetBool("gear/gear[1]/wow[0]") && fgGetBool("gear/gear[2]/wow[0]");
175 data->wow_nose = fgGetBool("gear/gear[0]/wow[0]");
176 //cout << "Nose " << data->wow_nose << " Main " << wow_main << endl;
178 //data->rpm[0] = fgGetDouble("/engines/engine[0]/rpm");
179 //data->rpm[1] = fgGetDouble("/engines/engine[1]/rpm");
181 data->epr[0] = epr0_node->getDoubleValue();
182 data->epr[1] = epr1_node->getDoubleValue();
183 data->epr[2] = epr2_node->getDoubleValue();
184 data->epr[3] = epr3_node->getDoubleValue();
186 data->egt[0] = egt0_node->getDoubleValue();
187 data->egt[1] = egt1_node->getDoubleValue();
188 data->egt[2] = egt2_node->getDoubleValue();
189 data->egt[3] = egt3_node->getDoubleValue();
191 data->n2_turbine[0] = n20_node->getDoubleValue();
192 data->n2_turbine[1] = n21_node->getDoubleValue();
193 data->n2_turbine[2] = n22_node->getDoubleValue();
194 data->n2_turbine[3] = n23_node->getDoubleValue();
196 data->n1_turbine[0] = n10_node->getDoubleValue();
197 data->n1_turbine[1] = n11_node->getDoubleValue();
198 data->n1_turbine[2] = n12_node->getDoubleValue();
199 data->n1_turbine[3] = n13_node->getDoubleValue();
201 // This is really lbs/hr (pph), converted in FGSimTurbine
202 data->fuel_flow[0] = fgGetDouble("/engines/engine[0]/fuel-flow-gph");
203 data->fuel_flow[1] = fgGetDouble("/engines/engine[1]/fuel-flow-gph");
204 data->fuel_flow[2] = fgGetDouble("/engines/engine[2]/fuel-flow-gph");
205 data->fuel_flow[3] = fgGetDouble("/engines/engine[3]/fuel-flow-gph");
207 data->oil_pressure[0] = fgGetDouble("/engines/engine[0]/oil-pressure-psi");
208 data->oil_pressure[1] = fgGetDouble("/engines/engine[1]/oil-pressure-psi");
209 data->oil_pressure[2] = fgGetDouble("/engines/engine[2]/oil-pressure-psi");
210 data->oil_pressure[3] = fgGetDouble("/engines/engine[3]/oil-pressure-psi");
212 //data->oil_temp[0] = fgGetDouble("/engines/engine[0]/oil-temperature-degf");
213 //data->oil_temp[1] = fgGetDouble("/engines/engine[1]/oil-temperature-degf");
214 //data->oil_temp[2] = fgGetDouble("/engines/engine[2]/oil-temperature-degf");
215 //data->oil_temp[3] = fgGetDouble("/engines/engine[3]/oil-temperature-degf");
217 data->oil_temp[0] = oil_temp0->getDoubleValue();
218 data->oil_temp[1] = oil_temp1->getDoubleValue();
219 data->oil_temp[2] = oil_temp2->getDoubleValue();
220 data->oil_temp[3] = oil_temp3->getDoubleValue();
222 data->hyd_pressure[0] = fgGetDouble("/engines/engine[0]/hyd-pressure-psi");
223 data->hyd_pressure[1] = fgGetDouble("/engines/engine[1]/hyd-pressure-psi");
224 data->hyd_pressure[2] = fgGetDouble("/engines/engine[2]/hyd-pressure-psi");
225 data->hyd_pressure[3] = fgGetDouble("/engines/engine[3]/hyd-pressure-psi");
226 // just a temp thing until htdraulic model built
227 // data->hyd_pressure[0] = 2750.0;
228 // data->hyd_pressure[1] = 2755.0;
229 // data->hyd_pressure[2] = 2747.0;
230 // data->hyd_pressure[3] = 2851.0;
233 //data->man_pressure[0] = fgGetDouble("/engines/engine[0]/mp-osi");
234 //data->man_pressure[1] = fgGetDouble("/engines/engine[1]/mp-osi");
236 data->fuel_tank[0] = tank0_node->getDoubleValue() * 0.001;
237 data->fuel_tank[1] = tank1_node->getDoubleValue() * 0.001;
238 data->fuel_tank[2] = tank2_node->getDoubleValue() * 0.001;
239 data->fuel_tank[3] = tank3_node->getDoubleValue() * 0.001;
240 data->fuel_tank[4] = tank4_node->getDoubleValue() * 0.001;
241 data->fuel_tank[5] = tank5_node->getDoubleValue() * 0.001; // 747 stab tank
242 data->fuel_tank[6] = tank6_node->getDoubleValue() * 0.001; // 747 res2 tank
243 data->fuel_tank[7] = tank7_node->getDoubleValue() * 0.001; // 747 res3 tank
244 double total_fuel = 0.0;
245 for ( int t= 0; t<8; t++ ) total_fuel += data->fuel_tank[t];
246 data->fuel_tank[8] = total_fuel;
247 //data->fuel_tank[8] = 386000.0; // total fuel load
248 //cout << endl << "Send " << data->fuel_tank[0] << endl;
250 data->boost_pumps[0] = boost1_node->getBoolValue();
251 data->boost_pumps[1] = boost2_node->getBoolValue();
252 data->boost_pumps[2] = boost3_node->getBoolValue();
253 data->boost_pumps[3] = boost4_node->getBoolValue();
254 data->boost_pumps[4] = boost5_node->getBoolValue();
255 data->boost_pumps[5] = boost6_node->getBoolValue();
256 data->boost_pumps[6] = boost7_node->getBoolValue();
257 data->boost_pumps[7] = boost8_node->getBoolValue();
259 data->over_ride_pumps[0] = ovride0_node->getBoolValue();
260 data->over_ride_pumps[1] = ovride1_node->getBoolValue();
261 data->over_ride_pumps[2] = ovride2_node->getBoolValue();
262 data->over_ride_pumps[3] = ovride3_node->getBoolValue();
263 data->over_ride_pumps[4] = ovride4_node->getBoolValue();
264 data->over_ride_pumps[5] = ovride5_node->getBoolValue();
266 data->x_feed_valve[0] = x_feed0_node->getBoolValue();
267 data->x_feed_valve[1] = x_feed1_node->getBoolValue();
268 data->x_feed_valve[2] = x_feed2_node->getBoolValue();
269 data->x_feed_valve[3] = x_feed3_node->getBoolValue();
271 data->total_temperature = cur_fdm_state->get_Total_temperature();
272 data->total_pressure = cur_fdm_state->get_Total_pressure();
273 data->dynamic_pressure = cur_fdm_state->get_Dynamic_pressure();
275 data->static_pressure = press_node->getDoubleValue();
276 data->static_temperature = temp_node->getDoubleValue();
277 data->wind = wind_speed_node->getDoubleValue();
278 data->wind_dir = wind_dir_node->getDoubleValue();
279 data->sea_level_pressure = fgGetDouble("/environment/sea-level-pressure-inhg");
282 static void distribute_data( const FGLFSGlassData *data, FGInterface *chunk ) {
283 // just a place holder until the CDU is developed
287 // process work for this port
288 bool FGLFSGlass::process() {
289 SGIOChannel *io = get_io_channel();
290 int length = sizeof(buf);
292 if ( get_direction() == SG_IO_OUT ) {
293 collect_data( cur_fdm_state, &buf );
294 //collect_data( &buf );
295 if ( ! io->write( (char *)(& buf), length ) ) {
296 SG_LOG( SG_IO, SG_ALERT, "Error writing data." );
299 } else if ( get_direction() == SG_IO_IN ) {
300 if ( io->get_type() == sgFileType ) {
301 if ( io->read( (char *)(& buf), length ) == length ) {
302 SG_LOG( SG_IO, SG_DEBUG, "Success reading data." );
303 distribute_data( &buf, cur_fdm_state );
306 while ( io->read( (char *)(& buf), length ) == length ) {
307 SG_LOG( SG_IO, SG_DEBUG, "Success reading data." );
308 distribute_data( &buf, cur_fdm_state );
318 bool FGLFSGlass::close() {
319 SGIOChannel *io = get_io_channel();
321 set_enabled( false );
323 if ( ! io->close() ) {