kopia lustrzana https://github.com/jamescoxon/dl-fldigi
107 wiersze
2.3 KiB
C++
107 wiersze
2.3 KiB
C++
// ----------------------------------------------------------------------------
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// NULLMODEM.cxx -- NULLMODEM modem
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//
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// Copyright (C) 2006
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// Dave Freese, W1HKJ
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//
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// This file is part of fldigi. Adapted from code contained in gMFSK source code
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// distribution.
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// gMFSK Copyright (C) 2001, 2002, 2003
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// Tomi Manninen (oh2bns@sral.fi)
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//
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// Fldigi is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Fldigi is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU 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 fldigi. If not, see <http://www.gnu.org/licenses/>.
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// ----------------------------------------------------------------------------
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#include <config.h>
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#include <stdlib.h>
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#include <iostream>
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#include "nullmodem.h"
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#include "fl_digi.h"
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#include "ascii.h"
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#define null_bw 1
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// a NULLMODEM and will be instantiated before the dynamic member wf,
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// digiscope, and fl_digi_main, the main dialog
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NULLMODEM:: NULLMODEM() : modem()
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{
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mode = MODE_NULL;
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samplerate = 8000;
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restart();
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}
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NULLMODEM::~NULLMODEM() {};
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void NULLMODEM::tx_init(SoundBase *sc)
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{
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scard = sc;
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}
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void NULLMODEM::rx_init()
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{
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if (fl_digi_main)
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put_MODEstatus(mode);
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}
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void NULLMODEM::init()
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{
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modem::init();
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rx_init();
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if (digiscope)
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digiscope->mode(Digiscope::SCOPE);
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}
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void NULLMODEM::restart()
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{
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if (wf) set_bandwidth(null_bw);
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}
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//=====================================================================
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// receive processing
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//=====================================================================
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int NULLMODEM::rx_process(const double *buf, int len)
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{
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return 0;
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}
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//=====================================================================
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// transmit processing
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//=====================================================================
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int NULLMODEM::tx_process()
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{
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MilliSleep(10);
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if (!fl_digi_main) {
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return 0;
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}
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int c = get_tx_char();
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if (c == GET_TX_CHAR_ETX) {
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stopflag = false;
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return -1;
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}
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if ( stopflag ) {
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stopflag = false;
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return -1;
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}
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return 0;
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}
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