1 // atc610x.cxx -- FGFS interface to ATC 610x hardware
3 // Written by Curtis Olson, started January 2002
5 // Copyright (C) 2002 Curtis L. Olson - curt@flightgear.org
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.
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.
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., 675 Mass Ave, Cambridge, MA 02139, USA.
28 #include <simgear/compiler.h>
30 #include <stdlib.h> // atoi() atof() abs()
31 #include <sys/types.h>
34 #include <stdio.h> //snprintf
35 #if defined( _MSC_VER ) || defined(__MINGW32__)
36 # include <io.h> //lseek, read, write
43 #include <simgear/debug/logstream.hxx>
44 #include <simgear/io/iochannel.hxx>
45 #include <simgear/math/sg_types.hxx>
46 #include <simgear/misc/props.hxx>
47 #include <simgear/misc/sg_path.hxx>
49 #include <Main/fg_props.hxx>
50 #include <Main/globals.hxx>
52 #include "atc610x.hxx"
56 // Lock the ATC 610 hardware
57 static int ATC610xLock( int fd ) {
59 lseek( fd, 0, SEEK_SET );
62 int result = read( fd, tmp, 1 );
64 SG_LOG( SG_IO, SG_DEBUG, "Lock failed" );
71 // Write a radios command
72 static int ATC610xRelease( int fd ) {
74 lseek( fd, 0, SEEK_SET );
78 int result = write( fd, tmp, 1 );
81 SG_LOG( SG_IO, SG_DEBUG, "Release failed" );
89 static void ATC610xReadAnalogInputs( int fd, unsigned char *analog_in_bytes ) {
91 lseek( fd, 0, SEEK_SET );
93 int result = read( fd, analog_in_bytes, ATC_ANAL_IN_BYTES );
94 if ( result != ATC_ANAL_IN_BYTES ) {
95 SG_LOG( SG_IO, SG_ALERT, "Read failed" );
101 // Write a radios command
102 static int ATC610xSetRadios( int fd,
103 unsigned char data[ATC_RADIO_DISPLAY_BYTES] )
106 lseek( fd, 0, SEEK_SET );
108 int result = write( fd, data, ATC_RADIO_DISPLAY_BYTES );
110 if ( result != ATC_RADIO_DISPLAY_BYTES ) {
111 SG_LOG( SG_IO, SG_DEBUG, "Write failed" );
118 // Read status of last radios written to
119 static void ATC610xReadRadios( int fd, unsigned char *switch_data ) {
121 lseek( fd, 0, SEEK_SET );
123 int result = read( fd, switch_data, ATC_RADIO_SWITCH_BYTES );
124 if ( result != ATC_RADIO_SWITCH_BYTES ) {
125 SG_LOG( SG_IO, SG_ALERT, "Read failed" );
130 // Write a stepper command
131 static int ATC610xSetStepper( int fd, unsigned char channel,
132 unsigned char value )
135 lseek( fd, 0, SEEK_SET );
138 unsigned char buf[3];
142 int result = write( fd, buf, 2 );
144 SG_LOG( SG_IO, SG_INFO, "Write failed" );
146 SG_LOG( SG_IO, SG_DEBUG,
147 "Sent cmd = " << (int)channel << " value = " << (int)value );
152 // Read status of last stepper written to
153 static unsigned char ATC610xReadStepper( int fd ) {
157 lseek( fd, 0, SEEK_SET );
160 unsigned char buf[2];
161 result = read( fd, buf, 1 );
163 SG_LOG( SG_IO, SG_ALERT, "Read failed" );
166 SG_LOG( SG_IO, SG_DEBUG, "Read result = " << (int)buf[0] );
172 // Read switch inputs
173 static void ATC610xReadSwitches( int fd, unsigned char *switch_bytes ) {
175 lseek( fd, 0, SEEK_SET );
177 int result = read( fd, switch_bytes, ATC_SWITCH_BYTES );
178 if ( result != ATC_SWITCH_BYTES ) {
179 SG_LOG( SG_IO, SG_ALERT, "Read failed" );
185 // Turn a lamp on or off
186 void ATC610xSetLamp( int fd, int channel, bool value ) {
187 // lamp channels 0-63 are written to LampPort0, channels 64-127
188 // are written to LampPort1
190 // bits 0-6 are the lamp address
191 // bit 7 is the value (on/off)
196 unsigned char buf[3];
200 result = write( fd, buf, 2 );
202 SG_LOG( SG_IO, SG_ALERT, "Write failed" );
208 void FGATC610x::init_config() {
209 #if defined( unix ) || defined( __CYGWIN__ )
210 // Next check home directory for .fgfsrc.hostname file
211 char *envp = ::getenv( "HOME" );
212 if ( envp != NULL ) {
213 SGPath atc610x_config( envp );
214 atc610x_config.append( ".fgfs-atc610x.xml" );
215 readProperties( atc610x_config.str(), globals->get_props() );
221 // Open and initialize ATC 610x hardware
222 bool FGATC610x::open() {
223 if ( is_enabled() ) {
224 SG_LOG( SG_IO, SG_ALERT, "This shouldn't happen, but the channel "
225 << "is already in use, ignoring" );
229 // This loads the config parameters generated by "simcal"
232 SG_LOG( SG_IO, SG_ALERT,
233 "Initializing ATC 610x hardware, please wait ..." );
235 set_hz( 30 ); // default to processing requests @ 30Hz
238 board = 0; // 610x uses a single board number = 0
240 snprintf( lock_file, 256, "/proc/atc610x/board%d/lock", board );
241 snprintf( analog_in_file, 256, "/proc/atc610x/board%d/analog_in", board );
242 snprintf( lamps_file, 256, "/proc/atc610x/board%d/lamps", board );
243 snprintf( radios_file, 256, "/proc/atc610x/board%d/radios", board );
244 snprintf( stepper_file, 256, "/proc/atc610x/board%d/steppers", board );
245 snprintf( switches_file, 256, "/proc/atc610x/board%d/switches", board );
247 /////////////////////////////////////////////////////////////////////
248 // Open the /proc files
249 /////////////////////////////////////////////////////////////////////
251 lock_fd = ::open( lock_file, O_RDWR );
252 if ( lock_fd == -1 ) {
253 SG_LOG( SG_IO, SG_ALERT, "errno = " << errno );
255 snprintf( msg, 256, "Error opening %s", lock_file );
260 analog_in_fd = ::open( analog_in_file, O_RDONLY );
261 if ( analog_in_fd == -1 ) {
262 SG_LOG( SG_IO, SG_ALERT, "errno = " << errno );
264 snprintf( msg, 256, "Error opening %s", analog_in_file );
269 lamps_fd = ::open( lamps_file, O_WRONLY );
270 if ( lamps_fd == -1 ) {
271 SG_LOG( SG_IO, SG_ALERT, "errno = " << errno );
273 snprintf( msg, 256, "Error opening %s", lamps_file );
278 radios_fd = ::open( radios_file, O_RDWR );
279 if ( radios_fd == -1 ) {
280 SG_LOG( SG_IO, SG_ALERT, "errno = " << errno );
282 snprintf( msg, 256, "Error opening %s", radios_file );
287 stepper_fd = ::open( stepper_file, O_RDWR );
288 if ( stepper_fd == -1 ) {
289 SG_LOG( SG_IO, SG_ALERT, "errno = " << errno );
291 snprintf( msg, 256, "Error opening %s", stepper_file );
296 switches_fd = ::open( switches_file, O_RDONLY );
297 if ( switches_fd == -1 ) {
298 SG_LOG( SG_IO, SG_ALERT, "errno = " << errno );
300 snprintf( msg, 256, "Error opening %s", switches_file );
305 /////////////////////////////////////////////////////////////////////
306 // Home the compass stepper motor
307 /////////////////////////////////////////////////////////////////////
309 SG_LOG( SG_IO, SG_ALERT,
310 " - Homing the compass stepper motor" );
312 // Lock the hardware, keep trying until we succeed
313 while ( ATC610xLock( lock_fd ) <= 0 );
315 // Send the stepper home command
316 ATC610xSetStepper( stepper_fd, ATC_COMPASS_CH, ATC_STEPPER_HOME );
318 // Release the hardware
319 ATC610xRelease( lock_fd );
321 SG_LOG( SG_IO, SG_ALERT,
322 " - Waiting for compass to come home." );
325 int timeout = 900; // about 30 seconds
326 while ( ! home && timeout > 0 ) {
327 if ( timeout % 150 == 0 ) {
328 SG_LOG( SG_IO, SG_INFO, "waiting for compass = " << timeout );
330 SG_LOG( SG_IO, SG_DEBUG, "Checking if compass home ..." );
333 while ( ATC610xLock( lock_fd ) <= 0 );
335 unsigned char result = ATC610xReadStepper( stepper_fd );
340 ATC610xRelease( lock_fd );
342 #if defined( _MSC_VER )
343 ulMilliSecondSleep(33);
344 #elif defined (WIN32) && !defined(__CYGWIN__)
353 compass_position = 0.0;
355 /////////////////////////////////////////////////////////////////////
356 // Blank the radio display
357 /////////////////////////////////////////////////////////////////////
359 SG_LOG( SG_IO, SG_ALERT,
360 " - Clearing the radios displays." );
363 unsigned char value = 0xff;
364 for ( int channel = 0; channel < ATC_RADIO_DISPLAY_BYTES; ++channel ) {
365 radio_display_data[channel] = value;
368 // Lock the hardware, keep trying until we succeed
369 while ( ATC610xLock( lock_fd ) <= 0 );
372 ATC610xSetRadios( radios_fd, radio_display_data );
374 ATC610xRelease( lock_fd );
376 /////////////////////////////////////////////////////////////////////
378 /////////////////////////////////////////////////////////////////////
380 for ( int i = 0; i < 128; ++i ) {
381 ATC610xSetLamp( lamps_fd, i, false );
384 /////////////////////////////////////////////////////////////////////
385 // Finished initing hardware
386 /////////////////////////////////////////////////////////////////////
388 SG_LOG( SG_IO, SG_ALERT,
389 "Done initializing ATC 610x hardware." );
391 /////////////////////////////////////////////////////////////////////
392 // Connect up to property values
393 /////////////////////////////////////////////////////////////////////
395 mag_compass = fgGetNode( "/steam/mag-compass-deg", true );
397 dme_min = fgGetNode( "/radios/dme/ete-min", true );
398 dme_kt = fgGetNode( "/radios/dme/speed-kt", true );
399 dme_nm = fgGetNode( "/radios/dme/distance-nm", true );
401 navcom1_bus_power = fgGetNode( "/systems/electrical/outputs/navcomm[0]",
403 navcom2_bus_power = fgGetNode( "/systems/electrical/outputs/navcomm[1]",
406 navcom1_power_btn = fgGetNode( "/radios/comm[0]/inputs/power-btn", true );
407 navcom2_power_btn = fgGetNode( "/radios/comm[1]/inputs/power-btn", true );
409 com1_freq = fgGetNode( "/radios/comm[0]/frequencies/selected-mhz", true );
411 = fgGetNode( "/radios/comm[0]/frequencies/standby-mhz", true );
413 com2_freq = fgGetNode( "/radios/comm[1]/frequencies/selected-mhz", true );
415 = fgGetNode( "/radios/comm[1]/frequencies/standby-mhz", true );
417 nav1_freq = fgGetNode( "/radios/nav[0]/frequencies/selected-mhz", true );
419 = fgGetNode( "/radios/nav[0]/frequencies/standby-mhz", true );
421 nav2_freq = fgGetNode( "/radios/nav[1]/frequencies/selected-mhz", true );
423 = fgGetNode( "/radios/nav[1]/frequencies/standby-mhz", true );
425 adf_power = fgGetNode( "/radios/kr-87/inputs/power-btn", true );
426 adf_vol = fgGetNode( "/radios/kr-87/inputs/volume", true );
427 adf_adf_btn = fgGetNode( "/radios/kr-87/inputs/adf-btn", true );
428 adf_bfo_btn = fgGetNode( "/radios/kr-87/inputs/bfo-btn", true );
429 adf_freq = fgGetNode( "/radios/kr-87/outputs/selected-khz", true );
430 adf_stby_freq = fgGetNode( "/radios/kr-87/outputs/standby-khz", true );
431 adf_stby_mode = fgGetNode( "/radios/kr-87/modes/stby", true );
432 adf_timer_mode = fgGetNode( "/radios/kr-87/modes/timer", true );
433 adf_count_mode = fgGetNode( "/radios/kr-87/modes/count", true );
434 adf_flight_timer = fgGetNode( "/radios/kr-87/outputs/flight-timer", true );
435 adf_elapsed_timer = fgGetNode( "/radios/kr-87/outputs/elapsed-timer",
437 adf_ant_ann = fgGetNode( "/radios/kr-87/annunciators/ant", true );
438 adf_adf_ann = fgGetNode( "/radios/kr-87/annunciators/adf", true );
439 adf_bfo_ann = fgGetNode( "/radios/kr-87/annunciators/bfo", true );
440 adf_frq_ann = fgGetNode( "/radios/kr-87/annunciators/frq", true );
441 adf_flt_ann = fgGetNode( "/radios/kr-87/annunciators/flt", true );
442 adf_et_ann = fgGetNode( "/radios/kr-87/annunciators/et", true );
444 inner = fgGetNode( "/radios/marker-beacon/inner", true );
445 middle = fgGetNode( "/radios/marker-beacon/middle", true );
446 outer = fgGetNode( "/radios/marker-beacon/outer", true );
448 xpdr_ident_btn = fgGetNode( "/radios/kt-70/inputs/ident-btn", true );
449 xpdr_digit1 = fgGetNode( "/radios/kt-70/inputs/digit1", true );
450 xpdr_digit2 = fgGetNode( "/radios/kt-70/inputs/digit2", true );
451 xpdr_digit3 = fgGetNode( "/radios/kt-70/inputs/digit3", true );
452 xpdr_digit4 = fgGetNode( "/radios/kt-70/inputs/digit4", true );
453 xpdr_func_knob = fgGetNode( "/radios/kt-70/inputs/func-knob", true );
454 xpdr_id_code = fgGetNode( "/radios/kt-70/outputs/id-code", true );
455 xpdr_flight_level = fgGetNode( "/radios/kt-70/outputs/flight-level", true );
456 xpdr_fl_ann = fgGetNode( "/radios/kt-70/annunciators/fl", true );
457 xpdr_alt_ann = fgGetNode( "/radios/kt-70/annunciators/alt", true );
458 xpdr_gnd_ann = fgGetNode( "/radios/kt-70/annunciators/gnd", true );
459 xpdr_on_ann = fgGetNode( "/radios/kt-70/annunciators/on", true );
460 xpdr_sby_ann = fgGetNode( "/radios/kt-70/annunciators/sby", true );
461 xpdr_reply_ann = fgGetNode( "/radios/kt-70/annunciators/reply", true );
463 elevator_center = fgGetNode( "/input/atc610x/elevator/center", 0 );
464 elevator_min = fgGetNode( "/input/atc610x/elevator/min", 0 );
465 elevator_max = fgGetNode( "/input/atc610x/elevator/max", 0 );
467 ailerons_center = fgGetNode( "/input/atc610x/ailerons/center", 0 );
468 ailerons_min = fgGetNode( "/input/atc610x/ailerons/min", 0 );
469 ailerons_max = fgGetNode( "/input/atc610x/ailerons/max", 0 );
471 rudder_center = fgGetNode( "/input/atc610x/rudder/center", 0 );
472 rudder_min = fgGetNode( "/input/atc610x/rudder/min", 0 );
473 rudder_max = fgGetNode( "/input/atc610x/rudder/max", 0 );
475 throttle_min = fgGetNode( "/input/atc610x/throttle/min", 0 );
476 throttle_max = fgGetNode( "/input/atc610x/throttle/max", 0 );
478 mixture_min = fgGetNode( "/input/atc610x/mixture/min", 0 );
479 mixture_max = fgGetNode( "/input/atc610x/mixture/max", 0 );
481 trim_center = fgGetNode( "/input/atc610x/trim/center", 0 );
482 trim_min = fgGetNode( "/input/atc610x/trim/min", 0 );
483 trim_max = fgGetNode( "/input/atc610x/trim/max", 0 );
485 nav1vol_min = fgGetNode( "/input/atc610x/nav1vol/min", 0 );
486 nav1vol_max = fgGetNode( "/input/atc610x/nav1vol/max", 0 );
488 nav2vol_min = fgGetNode( "/input/atc610x/nav2vol/min", 0 );
489 nav2vol_max = fgGetNode( "/input/atc610x/nav2vol/max", 0 );
495 /////////////////////////////////////////////////////////////////////
496 // Read analog inputs
497 /////////////////////////////////////////////////////////////////////
499 #define ATC_AILERON_CENTER 535
500 #define ATC_ELEVATOR_TRIM_CENTER 512
501 #define ATC_ELEVATOR_CENTER 543
502 #define ATC_RUDDER_CENTER 519
504 // scale a number between min and max (with center defined) to a scale
506 static double scale( int center, int min, int max, int value ) {
507 // cout << center << " " << min << " " << max << " " << value << " ";
511 if ( value <= center ) {
512 range = center - min;
513 result = (value - center) / range;
515 range = max - center;
516 result = (value - center) / range;
519 if ( result < -1.0 ) result = -1.0;
520 if ( result > 1.0 ) result = 1.0;
522 // cout << result << endl;
528 // scale a number between min and max to a scale from 0.0 to 1.0
529 static double scale( int min, int max, int value ) {
530 // cout << center << " " << min << " " << max << " " << value << " ";
535 result = (value - min) / range;
537 if ( result < 0.0 ) result = 0.0;
538 if ( result > 1.0 ) result = 1.0;
540 // cout << result << endl;
546 bool FGATC610x::do_analog_in() {
547 // Read raw data in byte form
548 ATC610xReadAnalogInputs( analog_in_fd, analog_in_bytes );
550 // Convert to integer values
551 for ( int channel = 0; channel < ATC_ANAL_IN_VALUES; ++channel ) {
552 unsigned char hi = analog_in_bytes[2 * channel] & 0x03;
553 unsigned char lo = analog_in_bytes[2 * channel + 1];
554 analog_in_data[channel] = hi * 256 + lo;
556 // printf("%02x %02x ", hi, lo );
557 // printf("%04d ", value );
560 float tmp, tmp1, tmp2;
563 tmp = scale( ailerons_center->getIntValue(), ailerons_min->getIntValue(),
564 ailerons_max->getIntValue(), analog_in_data[0] );
565 fgSetFloat( "/controls/aileron", tmp );
566 // cout << "aileron = " << analog_in_data[0] << " = " << tmp;
569 tmp = -scale( elevator_center->getIntValue(), elevator_min->getIntValue(),
570 elevator_max->getIntValue(), analog_in_data[5] );
571 fgSetFloat( "/controls/elevator", tmp );
572 // cout << "trim = " << analog_in_data[4] << " = " << tmp;
575 tmp = scale( trim_center->getIntValue(), trim_min->getIntValue(),
576 trim_max->getIntValue(), analog_in_data[4] );
577 fgSetFloat( "/controls/elevator-trim", tmp );
578 // cout << " elev = " << analog_in_data[5] << " = " << tmp << endl;
581 tmp = scale( mixture_min->getIntValue(), mixture_max->getIntValue(),
583 fgSetFloat( "/controls/mixture[0]", tmp );
584 fgSetFloat( "/controls/mixture[1]", tmp );
587 tmp = scale( mixture_min->getIntValue(), mixture_max->getIntValue(),
589 fgSetFloat( "/controls/throttle[0]", tmp );
590 fgSetFloat( "/controls/throttle[1]", tmp );
594 tmp = scale( rudder_center->getIntValue(), rudder_min->getIntValue(),
595 rudder_max->getIntValue(), analog_in_data[10] );
596 fgSetFloat( "/controls/rudder", tmp );
600 tmp = (float)analog_in_data[25] / 1024.0f;
601 fgSetFloat( "/radios/nav[0]/volume", tmp );
604 tmp = (float)analog_in_data[24] / 1024.0f;
605 fgSetFloat( "/radios/nav[1]/volume", tmp );
608 tmp = (float)analog_in_data[26] / 1024.0f;
609 fgSetFloat( "/radios/kr-87/inputs/volume", tmp );
612 tmp = (float)analog_in_data[29] * 360.0f / 1024.0f;
613 fgSetFloat( "/radios/nav[1]/radials/selected-deg", tmp );
616 tmp1 = (float)analog_in_data[30] * 360.0f / 1024.0f;
617 tmp2 = (float)analog_in_data[31] * 360.0f / 1024.0f;
618 fgSetFloat( "/radios/nav[0]/radials/selected-deg", tmp1 );
624 /////////////////////////////////////////////////////////////////////
626 /////////////////////////////////////////////////////////////////////
628 bool FGATC610x::do_lights() {
631 ATC610xSetLamp( lamps_fd, 4, inner->getBoolValue() );
632 ATC610xSetLamp( lamps_fd, 5, middle->getBoolValue() );
633 ATC610xSetLamp( lamps_fd, 3, outer->getBoolValue() );
636 ATC610xSetLamp( lamps_fd, 11, adf_ant_ann->getBoolValue() ); // ANT
637 ATC610xSetLamp( lamps_fd, 12, adf_adf_ann->getBoolValue() ); // ADF
638 ATC610xSetLamp( lamps_fd, 13, adf_bfo_ann->getBoolValue() ); // BFO
639 ATC610xSetLamp( lamps_fd, 14, adf_frq_ann->getBoolValue() ); // FRQ
640 ATC610xSetLamp( lamps_fd, 15, adf_flt_ann->getBoolValue() ); // FLT
641 ATC610xSetLamp( lamps_fd, 16, adf_et_ann->getBoolValue() ); // ET
643 // Transponder annunciators
644 ATC610xSetLamp( lamps_fd, 17, xpdr_fl_ann->getBoolValue() ); // FL
645 ATC610xSetLamp( lamps_fd, 18, xpdr_alt_ann->getBoolValue() ); // ALT
646 ATC610xSetLamp( lamps_fd, 19, xpdr_gnd_ann->getBoolValue() ); // GND
647 ATC610xSetLamp( lamps_fd, 20, xpdr_on_ann->getBoolValue() ); // ON
648 ATC610xSetLamp( lamps_fd, 21, xpdr_sby_ann->getBoolValue() ); // SBY
649 ATC610xSetLamp( lamps_fd, 22, xpdr_reply_ann->getBoolValue() ); // R
655 /////////////////////////////////////////////////////////////////////
656 // Read radio switches
657 /////////////////////////////////////////////////////////////////////
659 bool FGATC610x::do_radio_switches() {
660 double freq, coarse_freq, fine_freq, value;
663 ATC610xReadRadios( radios_fd, radio_switch_data );
666 dme_switch = (radio_switch_data[7] >> 4) & 0x03;
667 if ( dme_switch == 0 ) {
669 fgSetInt( "/radios/dme/switch-position", 0 );
670 } else if ( dme_switch == 2 ) {
672 fgSetInt( "/radios/dme/switch-position", 1 );
673 } else if ( dme_switch == 1 ) {
675 fgSetInt( "/radios/dme/switch-position", 3 );
679 fgSetBool( "/radios/comm[0]/inputs/power-btn",
680 radio_switch_data[7] & 0x01 );
682 if ( navcom1_has_power() ) {
684 int com1_swap = !((radio_switch_data[7] >> 1) & 0x01);
685 static int last_com1_swap;
686 if ( com1_swap && (last_com1_swap != com1_swap) ) {
687 float tmp = com1_freq->getFloatValue();
688 fgSetFloat( "/radios/comm[0]/frequencies/selected-mhz",
689 com1_stby_freq->getFloatValue() );
690 fgSetFloat( "/radios/comm[0]/frequencies/standby-mhz", tmp );
692 last_com1_swap = com1_swap;
696 fgSetBool( "/radios/comm[1]/inputs/power-btn",
697 radio_switch_data[15] & 0x01 );
699 if ( navcom2_has_power() ) {
701 int com2_swap = !((radio_switch_data[15] >> 1) & 0x01);
702 static int last_com2_swap;
703 if ( com2_swap && (last_com2_swap != com2_swap) ) {
704 float tmp = com2_freq->getFloatValue();
705 fgSetFloat( "/radios/comm[1]/frequencies/selected-mhz",
706 com2_stby_freq->getFloatValue() );
707 fgSetFloat( "/radios/comm[1]/frequencies/standby-mhz", tmp );
709 last_com2_swap = com2_swap;
712 if ( navcom1_has_power() ) {
714 int nav1_swap = radio_switch_data[11] & 0x01;
715 static int last_nav1_swap;
716 if ( nav1_swap && (last_nav1_swap != nav1_swap) ) {
717 float tmp = nav1_freq->getFloatValue();
718 fgSetFloat( "/radios/nav[0]/frequencies/selected-mhz",
719 nav1_stby_freq->getFloatValue() );
720 fgSetFloat( "/radios/nav[0]/frequencies/standby-mhz", tmp );
722 last_nav1_swap = nav1_swap;
725 if ( navcom2_has_power() ) {
727 int nav2_swap = !(radio_switch_data[19] & 0x01);
728 static int last_nav2_swap;
729 if ( nav2_swap && (last_nav2_swap != nav2_swap) ) {
730 float tmp = nav2_freq->getFloatValue();
731 fgSetFloat( "/radios/nav[1]/frequencies/selected-mhz",
732 nav2_stby_freq->getFloatValue() );
733 fgSetFloat( "/radios/nav[1]/frequencies/standby-mhz", tmp );
735 last_nav2_swap = nav2_swap;
738 if ( navcom1_has_power() ) {
740 int com1_tuner_fine = ((radio_switch_data[5] >> 4) & 0x0f) - 1;
741 int com1_tuner_coarse = (radio_switch_data[5] & 0x0f) - 1;
742 static int last_com1_tuner_fine = com1_tuner_fine;
743 static int last_com1_tuner_coarse = com1_tuner_coarse;
745 freq = com1_stby_freq->getFloatValue();
746 coarse_freq = (int)freq;
747 fine_freq = (int)((freq - coarse_freq) * 40 + 0.5);
749 if ( com1_tuner_fine != last_com1_tuner_fine ) {
750 diff = com1_tuner_fine - last_com1_tuner_fine;
751 if ( abs(diff) > 4 ) {
753 if ( com1_tuner_fine < last_com1_tuner_fine ) {
755 diff = 12 - last_com1_tuner_fine + com1_tuner_fine;
758 diff = com1_tuner_fine - 12 - last_com1_tuner_fine;
763 while ( fine_freq >= 40.0 ) { fine_freq -= 40.0; }
764 while ( fine_freq < 0.0 ) { fine_freq += 40.0; }
766 if ( com1_tuner_coarse != last_com1_tuner_coarse ) {
767 diff = com1_tuner_coarse - last_com1_tuner_coarse;
768 if ( abs(diff) > 4 ) {
770 if ( com1_tuner_coarse < last_com1_tuner_coarse ) {
772 diff = 12 - last_com1_tuner_coarse + com1_tuner_coarse;
775 diff = com1_tuner_coarse - 12 - last_com1_tuner_coarse;
780 if ( coarse_freq < 118.0 ) { coarse_freq += 19.0; }
781 if ( coarse_freq > 136.0 ) { coarse_freq -= 19.0; }
783 last_com1_tuner_fine = com1_tuner_fine;
784 last_com1_tuner_coarse = com1_tuner_coarse;
786 fgSetFloat( "/radios/comm[0]/frequencies/standby-mhz",
787 coarse_freq + fine_freq / 40.0 );
790 if ( navcom2_has_power() ) {
792 int com2_tuner_fine = ((radio_switch_data[13] >> 4) & 0x0f) - 1;
793 int com2_tuner_coarse = (radio_switch_data[13] & 0x0f) - 1;
794 static int last_com2_tuner_fine = com2_tuner_fine;
795 static int last_com2_tuner_coarse = com2_tuner_coarse;
797 freq = com2_stby_freq->getFloatValue();
798 coarse_freq = (int)freq;
799 fine_freq = (int)((freq - coarse_freq) * 40 + 0.5);
801 if ( com2_tuner_fine != last_com2_tuner_fine ) {
802 diff = com2_tuner_fine - last_com2_tuner_fine;
803 if ( abs(diff) > 4 ) {
805 if ( com2_tuner_fine < last_com2_tuner_fine ) {
807 diff = 12 - last_com2_tuner_fine + com2_tuner_fine;
810 diff = com2_tuner_fine - 12 - last_com2_tuner_fine;
815 while ( fine_freq >= 40.0 ) { fine_freq -= 40.0; }
816 while ( fine_freq < 0.0 ) { fine_freq += 40.0; }
818 if ( com2_tuner_coarse != last_com2_tuner_coarse ) {
819 diff = com2_tuner_coarse - last_com2_tuner_coarse;
820 if ( abs(diff) > 4 ) {
822 if ( com2_tuner_coarse < last_com2_tuner_coarse ) {
824 diff = 12 - last_com2_tuner_coarse + com2_tuner_coarse;
827 diff = com2_tuner_coarse - 12 - last_com2_tuner_coarse;
832 if ( coarse_freq < 118.0 ) { coarse_freq += 19.0; }
833 if ( coarse_freq > 136.0 ) { coarse_freq -= 19.0; }
835 last_com2_tuner_fine = com2_tuner_fine;
836 last_com2_tuner_coarse = com2_tuner_coarse;
838 fgSetFloat( "/radios/comm[1]/frequencies/standby-mhz",
839 coarse_freq + fine_freq / 40.0 );
842 if ( navcom1_has_power() ) {
844 int nav1_tuner_fine = ((radio_switch_data[9] >> 4) & 0x0f) - 1;
845 int nav1_tuner_coarse = (radio_switch_data[9] & 0x0f) - 1;
846 static int last_nav1_tuner_fine = nav1_tuner_fine;
847 static int last_nav1_tuner_coarse = nav1_tuner_coarse;
849 freq = nav1_stby_freq->getFloatValue();
850 coarse_freq = (int)freq;
851 fine_freq = (int)((freq - coarse_freq) * 20 + 0.5);
853 if ( nav1_tuner_fine != last_nav1_tuner_fine ) {
854 diff = nav1_tuner_fine - last_nav1_tuner_fine;
855 if ( abs(diff) > 4 ) {
857 if ( nav1_tuner_fine < last_nav1_tuner_fine ) {
859 diff = 12 - last_nav1_tuner_fine + nav1_tuner_fine;
862 diff = nav1_tuner_fine - 12 - last_nav1_tuner_fine;
867 while ( fine_freq >= 20.0 ) { fine_freq -= 20.0; }
868 while ( fine_freq < 0.0 ) { fine_freq += 20.0; }
870 if ( nav1_tuner_coarse != last_nav1_tuner_coarse ) {
871 diff = nav1_tuner_coarse - last_nav1_tuner_coarse;
872 if ( abs(diff) > 4 ) {
874 if ( nav1_tuner_coarse < last_nav1_tuner_coarse ) {
876 diff = 12 - last_nav1_tuner_coarse + nav1_tuner_coarse;
879 diff = nav1_tuner_coarse - 12 - last_nav1_tuner_coarse;
884 if ( coarse_freq < 108.0 ) { coarse_freq += 10.0; }
885 if ( coarse_freq > 117.0 ) { coarse_freq -= 10.0; }
887 last_nav1_tuner_fine = nav1_tuner_fine;
888 last_nav1_tuner_coarse = nav1_tuner_coarse;
890 fgSetFloat( "/radios/nav[0]/frequencies/standby-mhz",
891 coarse_freq + fine_freq / 20.0 );
894 if ( navcom2_has_power() ) {
896 int nav2_tuner_fine = ((radio_switch_data[17] >> 4) & 0x0f) - 1;
897 int nav2_tuner_coarse = (radio_switch_data[17] & 0x0f) - 1;
898 static int last_nav2_tuner_fine = nav2_tuner_fine;
899 static int last_nav2_tuner_coarse = nav2_tuner_coarse;
901 freq = nav2_stby_freq->getFloatValue();
902 coarse_freq = (int)freq;
903 fine_freq = (int)((freq - coarse_freq) * 20 + 0.5);
905 if ( nav2_tuner_fine != last_nav2_tuner_fine ) {
906 diff = nav2_tuner_fine - last_nav2_tuner_fine;
907 if ( abs(diff) > 4 ) {
909 if ( nav2_tuner_fine < last_nav2_tuner_fine ) {
911 diff = 12 - last_nav2_tuner_fine + nav2_tuner_fine;
914 diff = nav2_tuner_fine - 12 - last_nav2_tuner_fine;
919 while ( fine_freq >= 20.0 ) { fine_freq -= 20.0; }
920 while ( fine_freq < 0.0 ) { fine_freq += 20.0; }
922 if ( nav2_tuner_coarse != last_nav2_tuner_coarse ) {
923 diff = nav2_tuner_coarse - last_nav2_tuner_coarse;
924 if ( abs(diff) > 4 ) {
926 if ( nav2_tuner_coarse < last_nav2_tuner_coarse ) {
928 diff = 12 - last_nav2_tuner_coarse + nav2_tuner_coarse;
931 diff = nav2_tuner_coarse - 12 - last_nav2_tuner_coarse;
936 if ( coarse_freq < 108.0 ) { coarse_freq += 10.0; }
937 if ( coarse_freq > 117.0 ) { coarse_freq -= 10.0; }
939 last_nav2_tuner_fine = nav2_tuner_fine;
940 last_nav2_tuner_coarse = nav2_tuner_coarse;
942 fgSetFloat( "/radios/nav[1]/frequencies/standby-mhz",
943 coarse_freq + fine_freq / 20.0);
946 if ( adf_power->getBoolValue() ) {
948 int adf_tuner_fine = ((radio_switch_data[21] >> 4) & 0x0f) - 1;
949 int adf_tuner_coarse = (radio_switch_data[21] & 0x0f) - 1;
950 static int last_adf_tuner_fine = adf_tuner_fine;
951 static int last_adf_tuner_coarse = adf_tuner_coarse;
953 // cout << "adf_stby_mode = " << adf_stby_mode->getIntValue() << endl;
954 if ( adf_count_mode->getIntValue() == 2 ) {
955 // tune count down timer
956 value = adf_elapsed_timer->getDoubleValue();
959 if ( adf_stby_mode->getIntValue() == 1 ) {
960 value = adf_freq->getFloatValue();
962 value = adf_stby_freq->getFloatValue();
966 if ( adf_tuner_fine != last_adf_tuner_fine ) {
967 diff = adf_tuner_fine - last_adf_tuner_fine;
968 if ( abs(diff) > 4 ) {
970 if ( adf_tuner_fine < last_adf_tuner_fine ) {
972 diff = 12 - last_adf_tuner_fine + adf_tuner_fine;
975 diff = adf_tuner_fine - 12 - last_adf_tuner_fine;
981 if ( adf_tuner_coarse != last_adf_tuner_coarse ) {
982 diff = adf_tuner_coarse - last_adf_tuner_coarse;
983 if ( abs(diff) > 4 ) {
985 if ( adf_tuner_coarse < last_adf_tuner_coarse ) {
987 diff = 12 - last_adf_tuner_coarse + adf_tuner_coarse;
990 diff = adf_tuner_coarse - 12 - last_adf_tuner_coarse;
993 if ( adf_count_mode->getIntValue() == 2 ) {
999 if ( adf_count_mode->getIntValue() == 2 ) {
1000 if ( value < 0 ) { value += 3600; }
1001 if ( value > 3599 ) { value -= 3600; }
1003 if ( value < 200 ) { value += 1600; }
1004 if ( value > 1799 ) { value -= 1600; }
1007 last_adf_tuner_fine = adf_tuner_fine;
1008 last_adf_tuner_coarse = adf_tuner_coarse;
1010 if ( adf_count_mode->getIntValue() == 2 ) {
1011 fgSetFloat( "/radios/kr-87/outputs/elapsed-timer", value );
1013 if ( adf_stby_mode->getIntValue() == 1 ) {
1014 fgSetFloat( "/radios/kr-87/outputs/selected-khz", value );
1016 fgSetFloat( "/radios/kr-87/outputs/standby-khz", value );
1022 fgSetInt( "/radios/kr-87/inputs/adf-btn",
1023 !(radio_switch_data[23] & 0x01) );
1024 fgSetInt( "/radios/kr-87/inputs/bfo-btn",
1025 !(radio_switch_data[23] >> 1 & 0x01) );
1026 fgSetInt( "/radios/kr-87/inputs/frq-btn",
1027 (radio_switch_data[23] >> 2 & 0x01) );
1028 fgSetInt( "/radios/kr-87/inputs/flt-et-btn",
1029 !(radio_switch_data[23] >> 3 & 0x01) );
1030 fgSetInt( "/radios/kr-87/inputs/set-rst-btn",
1031 !(radio_switch_data[23] >> 4 & 0x01) );
1032 fgSetInt( "/radios/kr-87/inputs/power-btn",
1033 radio_switch_data[23] >> 5 & 0x01 );
1034 /* cout << "adf = " << !(radio_switch_data[23] & 0x01)
1035 << " bfo = " << !(radio_switch_data[23] >> 1 & 0x01)
1036 << " stby = " << !(radio_switch_data[23] >> 2 & 0x01)
1037 << " timer = " << !(radio_switch_data[23] >> 3 & 0x01)
1038 << " set/rst = " << !(radio_switch_data[23] >> 4 & 0x01)
1041 // Transponder Tuner
1045 digit_tuner[0] = radio_switch_data[25] & 0x0f;
1046 digit_tuner[1] = ( radio_switch_data[25] >> 4 ) & 0x0f;
1047 digit_tuner[2] = radio_switch_data[29] & 0x0f;
1048 digit_tuner[3] = ( radio_switch_data[29] >> 4 ) & 0x0f;
1049 static bool first_time = true;
1050 static int last_digit_tuner[4];
1053 for ( i = 0; i < 4; ++i ) {
1054 last_digit_tuner[i] = digit_tuner[i];
1058 int id_code = xpdr_id_code->getIntValue();
1061 for ( i = 0; i < 4; ++i ) {
1062 digit[i] = id_code / place;
1063 id_code -= digit[i] * place;
1067 for ( i = 0; i < 4; ++i ) {
1068 if ( digit_tuner[i] != last_digit_tuner[i] ) {
1069 diff = digit_tuner[i] - last_digit_tuner[i];
1070 if ( abs(diff) > 4 ) {
1072 if ( digit_tuner[i] < last_digit_tuner[i] ) {
1074 diff = 15 - last_digit_tuner[i] + digit_tuner[i];
1077 diff = digit_tuner[i] - 15 - last_digit_tuner[i];
1082 while ( digit[i] >= 8 ) { digit[i] -= 8; }
1083 while ( digit[i] < 0 ) { digit[i] += 8; }
1084 last_digit_tuner[i] = digit_tuner[i];
1087 fgSetInt( "/radios/kt-70/inputs/digit1", digit[0] );
1088 fgSetInt( "/radios/kt-70/inputs/digit2", digit[1] );
1089 fgSetInt( "/radios/kt-70/inputs/digit3", digit[2] );
1090 fgSetInt( "/radios/kt-70/inputs/digit4", digit[3] );
1093 for ( i = 0; i < 5; ++i ) {
1094 if ( radio_switch_data[27] >> i & 0x01 ) {
1098 fgSetInt( "/radios/kt-70/inputs/func-knob", tmp );
1099 fgSetInt( "/radios/kt-70/inputs/ident-btn",
1100 !(radio_switch_data[27] >> 5 & 0x01) );
1106 /////////////////////////////////////////////////////////////////////
1107 // Update the radio display
1108 /////////////////////////////////////////////////////////////////////
1110 bool FGATC610x::do_radio_display() {
1115 if ( dme_switch != 0 ) {
1117 float minutes = dme_min->getFloatValue();
1118 if ( minutes > 999 ) {
1121 snprintf(digits, 7, "%03.0f", minutes);
1122 for ( i = 0; i < 6; ++i ) {
1125 radio_display_data[0] = digits[1] << 4 | digits[2];
1126 radio_display_data[1] = 0xf0 | digits[0];
1129 float knots = dme_kt->getFloatValue();
1130 if ( knots > 999 ) {
1133 snprintf(digits, 7, "%03.0f", knots);
1134 for ( i = 0; i < 6; ++i ) {
1137 radio_display_data[2] = digits[1] << 4 | digits[2];
1138 radio_display_data[3] = 0xf0 | digits[0];
1140 // DME distance (nm)
1141 float nm = dme_nm->getFloatValue();
1145 snprintf(digits, 7, "%04.1f", nm);
1146 for ( i = 0; i < 6; ++i ) {
1149 radio_display_data[4] = digits[1] << 4 | digits[3];
1150 radio_display_data[5] = 0x00 | digits[0];
1151 // the 0x00 in the upper nibble of the 6th byte of each
1152 // display turns on the decimal point
1154 // blank dem display
1155 for ( i = 0; i < 6; ++i ) {
1156 radio_display_data[i] = 0xff;
1160 if ( navcom1_has_power() ) {
1161 // Com1 standby frequency
1162 float com1_stby = com1_stby_freq->getFloatValue();
1163 if ( fabs(com1_stby) > 999.99 ) {
1166 snprintf(digits, 7, "%06.3f", com1_stby);
1167 for ( i = 0; i < 6; ++i ) {
1170 radio_display_data[6] = digits[4] << 4 | digits[5];
1171 radio_display_data[7] = digits[1] << 4 | digits[2];
1172 radio_display_data[8] = 0xf0 | digits[0];
1174 // Com1 in use frequency
1175 float com1 = com1_freq->getFloatValue();
1176 if ( fabs(com1) > 999.99 ) {
1179 snprintf(digits, 7, "%06.3f", com1);
1180 for ( i = 0; i < 6; ++i ) {
1183 radio_display_data[9] = digits[4] << 4 | digits[5];
1184 radio_display_data[10] = digits[1] << 4 | digits[2];
1185 radio_display_data[11] = 0x00 | digits[0];
1186 // the 0x00 in the upper nibble of the 6th byte of each display
1187 // turns on the decimal point
1189 radio_display_data[6] = 0xff;
1190 radio_display_data[7] = 0xff;
1191 radio_display_data[8] = 0xff;
1192 radio_display_data[9] = 0xff;
1193 radio_display_data[10] = 0xff;
1194 radio_display_data[11] = 0xff;
1197 if ( navcom2_has_power() ) {
1198 // Com2 standby frequency
1199 float com2_stby = com2_stby_freq->getFloatValue();
1200 if ( fabs(com2_stby) > 999.99 ) {
1203 snprintf(digits, 7, "%06.3f", com2_stby);
1204 for ( i = 0; i < 6; ++i ) {
1207 radio_display_data[18] = digits[4] << 4 | digits[5];
1208 radio_display_data[19] = digits[1] << 4 | digits[2];
1209 radio_display_data[20] = 0xf0 | digits[0];
1211 // Com2 in use frequency
1212 float com2 = com2_freq->getFloatValue();
1213 if ( fabs(com2) > 999.99 ) {
1216 snprintf(digits, 7, "%06.3f", com2);
1217 for ( i = 0; i < 6; ++i ) {
1220 radio_display_data[21] = digits[4] << 4 | digits[5];
1221 radio_display_data[22] = digits[1] << 4 | digits[2];
1222 radio_display_data[23] = 0x00 | digits[0];
1223 // the 0x00 in the upper nibble of the 6th byte of each display
1224 // turns on the decimal point
1226 radio_display_data[18] = 0xff;
1227 radio_display_data[19] = 0xff;
1228 radio_display_data[20] = 0xff;
1229 radio_display_data[21] = 0xff;
1230 radio_display_data[22] = 0xff;
1231 radio_display_data[23] = 0xff;
1234 if ( navcom1_has_power() ) {
1235 // Nav1 standby frequency
1236 float nav1_stby = nav1_stby_freq->getFloatValue();
1237 if ( fabs(nav1_stby) > 999.99 ) {
1240 snprintf(digits, 7, "%06.2f", nav1_stby);
1241 for ( i = 0; i < 6; ++i ) {
1244 radio_display_data[12] = digits[4] << 4 | digits[5];
1245 radio_display_data[13] = digits[1] << 4 | digits[2];
1246 radio_display_data[14] = 0xf0 | digits[0];
1248 // Nav1 in use frequency
1249 float nav1 = nav1_freq->getFloatValue();
1250 if ( fabs(nav1) > 999.99 ) {
1253 snprintf(digits, 7, "%06.2f", nav1);
1254 for ( i = 0; i < 6; ++i ) {
1257 radio_display_data[15] = digits[4] << 4 | digits[5];
1258 radio_display_data[16] = digits[1] << 4 | digits[2];
1259 radio_display_data[17] = 0x00 | digits[0];
1260 // the 0x00 in the upper nibble of the 6th byte of each display
1261 // turns on the decimal point
1263 radio_display_data[12] = 0xff;
1264 radio_display_data[13] = 0xff;
1265 radio_display_data[14] = 0xff;
1266 radio_display_data[15] = 0xff;
1267 radio_display_data[16] = 0xff;
1268 radio_display_data[17] = 0xff;
1271 if ( navcom2_has_power() ) {
1272 // Nav2 standby frequency
1273 float nav2_stby = nav2_stby_freq->getFloatValue();
1274 if ( fabs(nav2_stby) > 999.99 ) {
1277 snprintf(digits, 7, "%06.2f", nav2_stby);
1278 for ( i = 0; i < 6; ++i ) {
1281 radio_display_data[24] = digits[4] << 4 | digits[5];
1282 radio_display_data[25] = digits[1] << 4 | digits[2];
1283 radio_display_data[26] = 0xf0 | digits[0];
1285 // Nav2 in use frequency
1286 float nav2 = nav2_freq->getFloatValue();
1287 if ( fabs(nav2) > 999.99 ) {
1290 snprintf(digits, 7, "%06.2f", nav2);
1291 for ( i = 0; i < 6; ++i ) {
1294 radio_display_data[27] = digits[4] << 4 | digits[5];
1295 radio_display_data[28] = digits[1] << 4 | digits[2];
1296 radio_display_data[29] = 0x00 | digits[0];
1297 // the 0x00 in the upper nibble of the 6th byte of each display
1298 // turns on the decimal point
1300 radio_display_data[24] = 0xff;
1301 radio_display_data[25] = 0xff;
1302 radio_display_data[26] = 0xff;
1303 radio_display_data[27] = 0xff;
1304 radio_display_data[28] = 0xff;
1305 radio_display_data[29] = 0xff;
1308 // ADF standby frequency / timer
1309 if ( adf_power->getBoolValue() ) {
1310 if ( adf_stby_mode->getIntValue() == 0 ) {
1312 float adf_stby = adf_stby_freq->getFloatValue();
1313 if ( fabs(adf_stby) > 1799 ) {
1316 snprintf(digits, 7, "%04.0f", adf_stby);
1317 for ( i = 0; i < 6; ++i ) {
1320 radio_display_data[30] = digits[3] << 4 | 0x0f;
1321 radio_display_data[31] = digits[1] << 4 | digits[2];
1322 if ( digits[0] == 0 ) {
1323 radio_display_data[32] = 0xff;
1325 radio_display_data[32] = 0xf0 | digits[0];
1330 int hours, min, sec;
1331 if ( adf_timer_mode->getIntValue() == 0 ) {
1332 time = adf_flight_timer->getDoubleValue();
1334 time = adf_elapsed_timer->getDoubleValue();
1336 // cout << time << endl;
1337 hours = (int)(time / 3600.0);
1338 time -= hours * 3600.00;
1339 min = (int)(time / 60.0);
1356 // cout << big << ":" << little << endl;
1357 snprintf(digits, 7, "%02d%02d", big, little);
1358 for ( i = 0; i < 6; ++i ) {
1361 radio_display_data[30] = digits[3] << 4 | 0x0f;
1362 radio_display_data[31] = digits[1] << 4 | digits[2];
1363 radio_display_data[32] = 0xf0 | digits[0];
1366 // ADF in use frequency
1367 float adf = adf_freq->getFloatValue();
1368 if ( fabs(adf) > 1799 ) {
1371 snprintf(digits, 7, "%04.0f", adf);
1372 for ( i = 0; i < 6; ++i ) {
1375 radio_display_data[33] = digits[2] << 4 | digits[3];
1376 if ( digits[0] == 0 ) {
1377 radio_display_data[34] = 0xf0 | digits[1];
1379 radio_display_data[34] = digits[0] << 4 | digits[1];
1382 radio_display_data[30] = 0xff;
1383 radio_display_data[31] = 0xff;
1384 radio_display_data[32] = 0xff;
1385 radio_display_data[33] = 0xff;
1386 radio_display_data[34] = 0xff;
1389 // Transponder code and flight level
1390 if ( xpdr_func_knob->getIntValue() == 2 ) {
1392 radio_display_data[36] = 8 << 4 | 8;
1393 radio_display_data[37] = 8 << 4 | 8;
1394 radio_display_data[38] = 0xff;
1395 radio_display_data[39] = 8 << 4 | 0x0f;
1396 radio_display_data[40] = 8 << 4 | 8;
1397 } else if ( xpdr_func_knob->getIntValue() > 0 ) {
1399 int id_code = xpdr_id_code->getIntValue();
1401 for ( i = 0; i < 4; ++i ) {
1402 digits[i] = id_code / place;
1403 id_code -= digits[i] * place;
1406 radio_display_data[36] = digits[2] << 4 | digits[3];
1407 radio_display_data[37] = digits[0] << 4 | digits[1];
1408 radio_display_data[38] = 0xff;
1410 if ( xpdr_func_knob->getIntValue() == 3 ||
1411 xpdr_func_knob->getIntValue() == 5 )
1413 // do flight level display
1414 snprintf(digits, 7, "%03d", xpdr_flight_level->getIntValue() );
1415 for ( i = 0; i < 6; ++i ) {
1418 radio_display_data[39] = digits[2] << 4 | 0x0f;
1419 radio_display_data[40] = digits[0] << 4 | digits[1];
1421 // blank flight level display
1422 radio_display_data[39] = 0xff;
1423 radio_display_data[40] = 0xff;
1427 radio_display_data[36] = 0xff;
1428 radio_display_data[37] = 0xff;
1429 radio_display_data[38] = 0xff;
1430 radio_display_data[39] = 0xff;
1431 radio_display_data[40] = 0xff;
1434 ATC610xSetRadios( radios_fd, radio_display_data );
1440 /////////////////////////////////////////////////////////////////////
1441 // Drive the stepper motors
1442 /////////////////////////////////////////////////////////////////////
1444 bool FGATC610x::do_steppers() {
1445 float diff = mag_compass->getFloatValue() - compass_position;
1446 while ( diff < -180.0 ) { diff += 360.0; }
1447 while ( diff > 180.0 ) { diff -= 360.0; }
1449 int steps = (int)(diff * 4);
1450 // cout << "steps = " << steps << endl;
1451 if ( steps > 4 ) { steps = 4; }
1452 if ( steps < -4 ) { steps = -4; }
1454 if ( abs(steps) > 0 ) {
1455 unsigned char cmd = 0x80; // stepper command
1457 cmd |= 0x20; // go up
1459 cmd |= 0x00; // go down
1463 // sync compass_position with hardware position
1464 compass_position += (float)steps / 4.0;
1466 ATC610xSetStepper( stepper_fd, ATC_COMPASS_CH, cmd );
1473 /////////////////////////////////////////////////////////////////////
1474 // Read the switch positions
1475 /////////////////////////////////////////////////////////////////////
1477 // decode the packed switch data
1478 static void update_switch_matrix(
1480 unsigned char switch_data[ATC_SWITCH_BYTES],
1481 int switch_matrix[2][ATC_NUM_COLS][ATC_SWITCH_BYTES] )
1483 for ( int row = 0; row < ATC_SWITCH_BYTES; ++row ) {
1484 unsigned char switches = switch_data[row];
1486 for( int column = 0; column < ATC_NUM_COLS; ++column ) {
1487 switch_matrix[board][column][row] = switches & 1;
1488 switches = switches >> 1;
1493 bool FGATC610x::do_switches() {
1494 ATC610xReadSwitches( switches_fd, switch_data );
1496 // unpack the switch data
1497 int switch_matrix[2][ATC_NUM_COLS][ATC_SWITCH_BYTES];
1498 update_switch_matrix( board, switch_data, switch_matrix );
1501 fgSetBool( "/controls/switches/master-bat", switch_matrix[board][4][1] );
1502 fgSetBool( "/controls/switches/master-alt", switch_matrix[board][5][1] );
1503 fgSetBool( "/controls/switches/master-avionics",
1504 switch_matrix[board][0][3] );
1506 // magnetos and starter switch
1508 bool starter = false;
1509 if ( switch_matrix[board][3][1] == 1 ) {
1512 } else if ( switch_matrix[board][2][1] == 1 ) {
1515 } else if ( switch_matrix[board][1][1] == 1 ) {
1518 } else if ( switch_matrix[board][0][1] == 1 ) {
1526 // do a bit of filtering on the magneto/starter switch and the
1527 // flap lever because these are not well debounced in hardware
1528 static int mag1, mag2, mag3;
1532 if ( mag1 == mag2 && mag2 == mag3 ) {
1533 fgSetInt( "/controls/magnetos[0]", magnetos );
1535 static bool start1, start2, start3;
1539 if ( start1 == start2 && start2 == start3 ) {
1540 fgSetBool( "/controls/starter[0]", starter );
1543 // other toggle switches
1544 fgSetBool( "/controls/fuel-pump[0]", switch_matrix[board][0][2] );
1545 fgSetBool( "/controls/switches/flashing-beacon",
1546 switch_matrix[board][1][2] );
1547 fgSetBool( "/controls/switches/landing-light", switch_matrix[board][2][2] );
1548 fgSetBool( "/controls/switches/taxi-lights", switch_matrix[board][3][2] );
1549 fgSetBool( "/controls/switches/nav-lights",
1550 switch_matrix[board][4][2] );
1551 fgSetBool( "/controls/switches/strobe-lights", switch_matrix[board][5][2] );
1552 fgSetBool( "/controls/switches/pitot-heat", switch_matrix[board][6][2] );
1556 if ( switch_matrix[board][6][3] ) {
1558 } else if ( switch_matrix[board][5][3] ) {
1560 } else if ( switch_matrix[board][4][3] ) {
1562 } else if ( !switch_matrix[board][4][3] ) {
1566 // do a bit of filtering on the magneto/starter switch and the
1567 // flap lever because these are not well debounced in hardware
1568 static float flap1, flap2, flap3;
1572 if ( flap1 == flap2 && flap2 == flap3 ) {
1573 fgSetFloat( "/controls/flaps", flaps );
1576 // fuel selector (also filtered)
1578 if ( switch_matrix[board][2][3] ) {
1581 } else if ( switch_matrix[board][1][3] ) {
1584 } else if ( switch_matrix[board][3][3] ) {
1592 static int fuel1, fuel2, fuel3;
1596 if ( fuel1 == fuel2 && fuel2 == fuel3 ) {
1597 fgSetBool( "/controls/fuel-selector[0]", (fuel & 0x01) > 0 );
1598 fgSetBool( "/controls/fuel-selector[1]", (fuel & 0x02) > 0 );
1602 fgSetBool( "/controls/circuit-breakers/cabin-lights-pwr",
1603 switch_matrix[board][0][0] );
1604 fgSetBool( "/controls/circuit-breakers/instr-ignition-switch",
1605 switch_matrix[board][1][0] );
1606 fgSetBool( "/controls/circuit-breakers/flaps",
1607 switch_matrix[board][2][0] );
1608 fgSetBool( "/controls/circuit-breakers/avn-bus-1",
1609 switch_matrix[board][3][0] );
1610 fgSetBool( "/controls/circuit-breakers/avn-bus-2",
1611 switch_matrix[board][4][0] );
1612 fgSetBool( "/controls/circuit-breakers/turn-coordinator",
1613 switch_matrix[board][5][0] );
1614 fgSetBool( "/controls/circuit-breakers/instrument-lights",
1615 switch_matrix[board][6][0] );
1616 fgSetBool( "/controls/circuit-breakers/annunciators",
1617 switch_matrix[board][7][0] );
1623 bool FGATC610x::process() {
1624 // Lock the hardware, skip if it's not ready yet
1625 if ( ATC610xLock( lock_fd ) > 0 ) {
1629 do_radio_switches();
1634 ATC610xRelease( lock_fd );
1643 bool FGATC610x::close() {