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Uladzimir Karpenka
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/* apfshadow.c
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This file is part of a program that implements a Software-Defined Radio.
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Copyright (C) 2025 Warren Pratt, NR0V
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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
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program 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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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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The author can be reached by email at
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warren@pratt.one
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*/
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#include "comm.h"
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APFSHADOW create_apfshadow (int selection, int run, double f_center, double bandwidth, double gain)
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{
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APFSHADOW a = (APFSHADOW)malloc0 (sizeof (apfshadow));
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a->selection = selection;
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a->run = run;
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a->f_center = f_center;
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a->bandwidth = bandwidth;
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a->gain = gain;
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return a;
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}
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void destroy_apfshadow (APFSHADOW a)
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{
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_aligned_free (a);
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}
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PORT
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void SetRXASPCWSelection (int channel, int selection)
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{
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APFSHADOW a = rxa[channel].apfshadow.p;
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if (a->selection != selection)
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{
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a->selection = selection;
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switch (a->selection)
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{
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case 0: // Double-pole
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SetRXAMatchedRun (channel, 0);
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SetRXAGaussianRun (channel, 0);
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SetRXABiQuadRun (channel, 0);
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SetRXADoublepoleFreqs (channel, a->f_center, a->bandwidth);
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SetRXADoublepoleGain (channel, a->gain);
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SetRXADoublepoleRun (channel, a->run);
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break;
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case 1: // Matched
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SetRXADoublepoleRun (channel, 0);
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SetRXAGaussianRun (channel, 0);
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SetRXABiQuadRun (channel, 0);
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SetRXAMatchedFreqs (channel, a->f_center, a->bandwidth);
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SetRXAMatchedGain (channel, sqrt (2.0) * a->gain);
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SetRXAMatchedRun (channel, a->run);
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break;
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case 2: // Gaussian
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SetRXADoublepoleRun (channel, 0);
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SetRXAMatchedRun (channel, 0);
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SetRXABiQuadRun (channel, 0);
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SetRXAGaussianFreqs (channel, a->f_center, a->bandwidth);
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SetRXAGaussianGain (channel, sqrt (2.0) * a->gain);
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SetRXAGaussianRun (channel, a->run);
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break;
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case 3: // Bi-quad
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SetRXADoublepoleRun (channel, 0);
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SetRXAMatchedRun (channel, 0);
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SetRXAGaussianRun (channel, 0);
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SetRXABiQuadFreq (channel, a->f_center);
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SetRXABiQuadBandwidth (channel, a->bandwidth);
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SetRXABiQuadGain (channel, a->gain);
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SetRXABiQuadRun (channel, a->run);
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break;
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default:
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break;
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}
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}
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}
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PORT
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void SetRXASPCWRun (int channel, int run)
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{
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APFSHADOW a = rxa[channel].apfshadow.p;
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a->run = run;
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switch (a->selection)
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{
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case 0: // Double-pole
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SetRXADoublepoleRun (channel, a->run);
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break;
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case 1: // Matched
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SetRXAMatchedRun (channel, a->run);
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break;
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case 2: // Gaussian
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SetRXAGaussianRun (channel, a->run);
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break;
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case 3: // Bi-quad
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SetRXABiQuadRun (channel, a->run);
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break;
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default:
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break;
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}
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}
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PORT
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void SetRXASPCWFreq (int channel, double f_center)
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{
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APFSHADOW a = rxa[channel].apfshadow.p;
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a->f_center = f_center;
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switch (a->selection)
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{
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case 0: // Double-pole
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SetRXADoublepoleFreqs (channel, a->f_center, a->bandwidth);
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break;
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case 1: // Matched
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SetRXAMatchedFreqs (channel, a->f_center, a->bandwidth);
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break;
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case 2: // Gaussian
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SetRXAGaussianFreqs (channel, a->f_center, a->bandwidth);
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break;
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case 3: // Bi-quad
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SetRXABiQuadFreq (channel, a->f_center);
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break;
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default:
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break;
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}
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}
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PORT
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void SetRXASPCWBandwidth (int channel, double bandwidth)
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{
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APFSHADOW a = rxa[channel].apfshadow.p;
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a->bandwidth = bandwidth;
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switch (a->selection)
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{
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case 0: // Double-pole
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SetRXADoublepoleFreqs (channel, a->f_center, a->bandwidth);
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break;
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case 1: // Matched
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SetRXAMatchedFreqs (channel, a->f_center, a->bandwidth);
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break;
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case 2: // Gaussian
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SetRXAGaussianFreqs (channel, a->f_center, a->bandwidth);
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break;
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case 3: // Bi-quad
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SetRXABiQuadBandwidth (channel, a->bandwidth);
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break;
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default:
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break;
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}
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}
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PORT
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void SetRXASPCWGain (int channel, double gain)
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{
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APFSHADOW a = rxa[channel].apfshadow.p;
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a->gain = gain;
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switch (a->selection)
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{
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case 0: // Double-pole
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SetRXADoublepoleGain (channel, a->gain);
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break;
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case 1: // Matched
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SetRXAMatchedGain (channel, sqrt(2.0) * a->gain);
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break;
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case 2: // Gaussian
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SetRXAGaussianGain (channel, sqrt(2.0) * a->gain);
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break;
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case 3: // Bi-quad
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SetRXABiQuadGain (channel, a->gain);
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break;
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default:
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break;
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}
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}
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