sdrangel/plugins/samplesource/perseus/perseusthread.h

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///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2018 Edouard Griffiths, F4EXB //
// //
// This program is free software; you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation as version 3 of the License, or //
// //
// This program is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#ifndef PLUGINS_SAMPLESOURCE_PERSEUS_PERSEUSTHREAD_H_
#define PLUGINS_SAMPLESOURCE_PERSEUS_PERSEUSTHREAD_H_
#include <QThread>
#include <QMutex>
#include <QWaitCondition>
#include "perseus-sdr.h"
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#include "dsp/samplesinkfifo.h"
#include "dsp/decimators.h"
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#define PERSEUS_NBSAMPLES 2048 // Number of I/Q samples in each callback from Perseus
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#define PERSEUS_BLOCKSIZE 6*PERSEUS_NBSAMPLES // Perseus sends 2*3 bytes samples
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class PerseusThread : public QThread {
Q_OBJECT
public:
PerseusThread(perseus_descr* dev, SampleSinkFifo* sampleFifo, QObject* parent = 0);
~PerseusThread();
void startWork();
void stopWork();
void setLog2Decimation(unsigned int log2_decim);
private:
QMutex m_startWaitMutex;
QWaitCondition m_startWaiter;
volatile bool m_running;
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perseus_descr* m_dev;
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qint32 m_buf[2*PERSEUS_NBSAMPLES];
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SampleVector m_convertBuffer;
SampleSinkFifo* m_sampleFifo;
unsigned int m_log2Decim;
static PerseusThread *m_this;
Decimators<qint32, TripleByteLE<qint32>, SDR_RX_SAMP_SZ, 24> m_decimators32; // for no decimation (accumulator is int32)
Decimators<qint32, TripleByteLE<qint64>, SDR_RX_SAMP_SZ, 24> m_decimators64; // for actual decimation (accumulator is int64)
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void run();
void callback(const uint8_t* buf, qint32 len); // inner call back
static int rx_callback(void *buf, int buf_size, void *extra); // call back from Perseus
};
#endif /* PLUGINS_SAMPLESOURCE_PERSEUS_PERSEUSTHREAD_H_ */