98 lines
3.4 KiB
C
98 lines
3.4 KiB
C
/* iobuffs.h
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This file is part of a program that implements a Software-Defined Radio.
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Copyright (C) 2013 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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#ifndef _iobuffs_h
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#define _iobuffs_h
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#include "comm.h"
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typedef struct _iobf
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{
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int channel;
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int in_size; // input number of complex samples in a fexchange call
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int out_size; // output number of complex samples in a fexchange call
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int r1_outsize; // number of complex samples taken out of the input-pseudo-ring for processing
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int r2_insize; // number of processed complex samples returned into the output-pseudo-ring
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int r1_size; // size of a single maximum sized transfer
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int r2_size; // size of a single maximum sized transfer
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int r1_active_buffsize; // size of input pseudo-ring (in complex samples)
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int r2_active_buffsize; // size of output pseudo-ring (in complex samples)
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double* r1_baseptr; // pointer to input pseudo-ring
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int r1_inidx; // in 'double', actual index into the buffer is 2 times this
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int r1_outidx; // in 'double', actual index into the buffer is 2 times this
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int r1_unqueuedsamps; // number of input samples not yet queued/released for execution
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double* r2_baseptr; // pointer to output pseudo-ring
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int r2_inidx; // in 'double', actual index into the buffer is 2 times this
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int r2_outidx; // in 'double', actual index into the buffer is 2 times this
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int r2_havesamps; // number of processed samples in output pseudo-ring
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int r2_unqueuedsamps; // number of output samples not yet queued / released for output
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CRITICAL_SECTION r2_ControlSection;
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int bfo; // block_for_output, wait until output is available before proceeding
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HANDLE Sem_OutReady; // count = number of 'out_size' buffers processed and available for output
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HANDLE Sem_BuffReady; // count = number of 'dsp_size' buffers queued for processing
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volatile long exec_bypass;
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volatile long flush_bypass;
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HANDLE Sem_Flush;
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struct
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{
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int ustate;
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int dstate;
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int ucount;
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int dcount;
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int ndelup;
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int ntup;
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double* cup;
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int ndeldown;
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int ntdown;
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double* cdown;
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volatile long upflag;
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volatile long downflag;
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} slew;
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} iob, *IOB;
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extern void create_slews (IOB a);
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extern void destroy_slews (IOB a);
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extern void flush_slews (IOB a);
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extern void create_iobuffs (int channel);
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extern void destroy_iobuffs (int channel);
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extern void flush_iobuffs (int channel);
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PORT // double, interleaved I/Q
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void fexchange0 (int channel, double* in, double* out, int* error);
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PORT // separate I/Q buffers
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extern void fexchange2 (int channel, INREAL *Iin, INREAL *Qin, OUTREAL *Iout, OUTREAL *Qout, int* error);
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extern void dexchange (int channel, double* in, double* out);
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#endif
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