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Uladzimir Karpenka
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/* iir.h
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This file is part of a program that implements a Software-Defined Radio.
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Copyright (C) 2014, 2022, 2023 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@wpratt.com
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*/
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/********************************************************************************************************
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* *
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* Bi-Quad Notch *
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* *
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********************************************************************************************************/
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#ifndef _snotch_h
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#define _snotch_h
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typedef struct _snotch
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{
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int run;
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int size;
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double* in;
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double* out;
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double rate;
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double f;
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double bw;
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double a0, a1, a2, b1, b2;
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double x0, x1, x2, y1, y2;
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CRITICAL_SECTION cs_update;
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} snotch, *SNOTCH;
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extern SNOTCH create_snotch (int run, int size, double* in, double* out, int rate, double f, double bw);
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extern void destroy_snotch (SNOTCH a);
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extern void flush_snotch (SNOTCH a);
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extern void xsnotch (SNOTCH a);
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extern void setBuffers_snotch (SNOTCH a, double* in, double* out);
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extern void setSamplerate_snotch (SNOTCH a, int rate);
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extern void setSize_snotch (SNOTCH a, int size);
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extern void SetSNCTCSSFreq (SNOTCH a, double freq);
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extern void SetSNCTCSSRun (SNOTCH a, int run);
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#endif
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/********************************************************************************************************
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* *
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* Complex Bi-Quad Peaking *
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* *
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********************************************************************************************************/
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#ifndef _speak_h
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#define _speak_h
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typedef struct _speak
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{
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int run;
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int size;
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double* in;
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double* out;
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double rate;
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double f;
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double bw;
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double cbw;
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double gain;
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double fgain;
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int nstages;
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int design;
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double a0, a1, a2, b1, b2;
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double *x0, *x1, *x2, *y0, *y1, *y2;
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CRITICAL_SECTION cs_update;
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} speak, *SPEAK;
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extern SPEAK create_speak (int run, int size, double* in, double* out, int rate, double f, double bw, double gain, int nstages, int design);
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extern void destroy_speak (SPEAK a);
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extern void flush_speak (SPEAK a);
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extern void xspeak (SPEAK a);
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extern void setBuffers_speak (SPEAK a, double* in, double* out);
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extern void setSamplerate_speak (SPEAK a, int rate);
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extern void setSize_speak (SPEAK a, int size);
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extern __declspec (dllexport) void SetRXABiQuadRun(int channel, int run);
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extern __declspec (dllexport) void SetRXABiQuadFreq(int channel, double freq);
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extern __declspec (dllexport) void SetRXABiQuadBandwidth(int channel, double bw);
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extern __declspec (dllexport) void SetRXABiQuadGain(int channel, double gain);
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#endif
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/********************************************************************************************************
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* *
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* Complex Multiple Peaking *
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* *
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********************************************************************************************************/
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#ifndef _mpeak_h
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#define _mpeak_h
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typedef struct _mpeak
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{
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int run;
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int size;
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double* in;
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double* out;
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int rate;
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int npeaks;
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int* enable;
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double* f;
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double* bw;
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double* gain;
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int nstages;
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SPEAK* pfil;
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double* tmp;
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double* mix;
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CRITICAL_SECTION cs_update;
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} mpeak, *MPEAK;
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extern MPEAK create_mpeak (int run, int size, double* in, double* out, int rate, int npeaks, int* enable, double* f, double* bw, double* gain, int nstages);
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extern void destroy_mpeak (MPEAK a);
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extern void flush_mpeak (MPEAK a);
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extern void xmpeak (MPEAK a);
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extern void setBuffers_mpeak (MPEAK a, double* in, double* out);
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extern void setSamplerate_mpeak (MPEAK a, int rate);
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extern void setSize_mpeak (MPEAK a, int size);
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#endif
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/********************************************************************************************************
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* *
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* Phase Rotator *
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* *
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********************************************************************************************************/
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#ifndef _phrot_h
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#define _phrot_h
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typedef struct _phrot
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{
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int reverse;
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int run;
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int size;
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double* in;
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double* out;
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int rate;
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double fc;
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int nstages;
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// normalized such that a0 = 1
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double a1, b0, b1;
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double *x0, *x1, *y0, *y1;
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CRITICAL_SECTION cs_update;
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} phrot, *PHROT;
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extern PHROT create_phrot (int run, int size, double* in, double* out, int rate, double fc, int nstages);
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extern void destroy_phrot (PHROT a);
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extern void flush_phrot (PHROT a);
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extern void xphrot (PHROT a);
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extern void setBuffers_phrot (PHROT a, double* in, double* out);
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extern void setSamplerate_phrot (PHROT a, int rate);
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extern void setSize_phrot (PHROT a, int size);
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#endif
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/********************************************************************************************************
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* *
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* Complex Bi-Quad Low-Pass *
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* *
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********************************************************************************************************/
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#ifndef _bqlp_h
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#define _bqlp_h
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typedef struct _bqlp
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{
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int run;
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int size;
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double* in;
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double* out;
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double rate;
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double fc;
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double Q;
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double gain;
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int nstages;
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double a0, a1, a2, b1, b2;
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double* x0, * x1, * x2, * y0, * y1, * y2;
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CRITICAL_SECTION cs_update;
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} bqlp, *BQLP;
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extern BQLP create_bqlp(int run, int size, double* in, double* out, double rate, double fc, double Q, double gain, int nstages);
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extern void destroy_bqlp(BQLP a);
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extern void flush_bqlp(BQLP a);
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extern void xbqlp(BQLP a);
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extern void setBuffers_bqlp(BQLP a, double* in, double* out);
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extern void setSamplerate_bqlp(BQLP a, int rate);
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extern void setSize_bqlp(BQLP a, int size);
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#endif
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/********************************************************************************************************
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* *
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* Double Bi-Quad Low-Pass *
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* *
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********************************************************************************************************/
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#ifndef _dbqlp_h
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#define _dbqlp_h
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extern BQLP create_dbqlp(int run, int size, double* in, double* out, double rate, double fc, double Q, double gain, int nstages);
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extern void destroy_dbqlp(BQLP a);
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extern void flush_dbqlp(BQLP a);
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extern void xdbqlp(BQLP a);
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extern void setBuffers_dbqlp(BQLP a, double* in, double* out);
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extern void setSamplerate_dbqlp(BQLP a, int rate);
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extern void setSize_dbqlp(BQLP a, int size);
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#endif
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/********************************************************************************************************
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* *
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* Complex Bi-Quad Band-Pass *
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* *
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********************************************************************************************************/
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#ifndef _bqbp_h
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#define _bqbp_h
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typedef struct _bqbp
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{
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int run;
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int size;
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double* in;
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double* out;
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double rate;
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double f_low;
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double f_high;
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double gain;
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int nstages;
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double a0, a1, a2, b1, b2;
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double* x0, * x1, * x2, * y0, * y1, * y2;
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CRITICAL_SECTION cs_update;
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} bqbp, * BQBP;
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extern BQBP create_bqbp(int run, int size, double* in, double* out, double rate, double f_low, double f_high, double gain, int nstages);
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extern void destroy_bqbp(BQBP a);
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extern void flush_bqbp(BQBP a);
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extern void xbqbp(BQBP a);
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extern void setBuffers_bqbp(BQBP a, double* in, double* out);
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extern void setSamplerate_bqbp(BQBP a, int rate);
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extern void setSize_bqbp(BQBP a, int size);
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#endif
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/********************************************************************************************************
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* *
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* Double Bi-Quad Band-Pass *
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* *
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********************************************************************************************************/
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#ifndef _dbqbp_h
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#define _dbqbp_h
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extern BQBP create_dbqbp(int run, int size, double* in, double* out, double rate, double f_low, double f_high, double gain, int nstages);
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extern void destroy_dbqbp(BQBP a);
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extern void flush_dbqbp(BQBP a);
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extern void xdbqbp(BQBP a);
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extern void setBuffers_dbqbp(BQBP a, double* in, double* out);
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extern void setSamplerate_dbqbp(BQBP a, int rate);
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extern void setSize_dbqbp(BQBP a, int size);
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#endif
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/********************************************************************************************************
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* *
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* Double Single-Pole High-Pass *
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* *
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********************************************************************************************************/
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#ifndef _dsphp_h
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#define _dsphp_h
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typedef struct _sphp
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{
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int run;
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int size;
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double* in;
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double* out;
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double rate;
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double fc;
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int nstages;
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double a1, b0, b1;
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double* x0, * x1, * y0, * y1;
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CRITICAL_SECTION cs_update;
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} sphp, * SPHP;
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extern SPHP create_dsphp(int run, int size, double* in, double* out, double rate, double fc, int nstages);
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extern void destroy_dsphp(SPHP a);
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extern void flush_dsphp(SPHP a);
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extern void xdsphp(SPHP a);
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extern void setBuffers_dsphp(SPHP a, double* in, double* out);
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extern void setSamplerate_dsphp(SPHP a, int rate);
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extern void setSize_dsphp(SPHP a, int size);
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#endif
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/********************************************************************************************************
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* *
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* Complex Single-Pole High-Pass *
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* *
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********************************************************************************************************/
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#ifndef _dphp_h
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#define _dphp_h
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extern SPHP create_sphp(int run, int size, double* in, double* out, double rate, double fc, int nstages);
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extern void destroy_sphp(SPHP a);
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extern void flush_sphp(SPHP a);
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extern void xsphp(SPHP a);
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extern void setBuffers_sphp(SPHP a, double* in, double* out);
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extern void setSamplerate_sphp(SPHP a, int rate);
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extern void setSize_sphp(SPHP a, int size);
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#endif
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