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PlutoSDR input: added thread class

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This commit is contained in:
f4exb 2017-09-06 06:15:38 +02:00
parent a9b2e76e15
commit e1c3a66983
5 changed files with 277 additions and 3 deletions
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2
devices/plutosdr/deviceplutosdrbox.h
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@ -17,6 +17,8 @@
#ifndef DEVICES_PLUTOSDR_DEVICEPLUTOSDRBOX_H_
#define DEVICES_PLUTOSDR_DEVICEPLUTOSDRBOX_H_
#include <stdint.h>
#include <sys/types.h>
#include "deviceplutosdrscan.h"
class DevicePlutoSDRBox

4
plugins/samplesource/plutosdrinput/CMakeLists.txt
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@ -5,7 +5,7 @@ set(plutosdrinput_SOURCES
plutosdrinput.cpp
plutosdrinputplugin.cpp
plutosdrinputsettings.cpp
# plutosdrinputthread.cpp
plutosdrinputthread.cpp
)
set(plutosdrinput_HEADERS
@ -13,7 +13,7 @@ set(plutosdrinput_HEADERS
plutosdrinput.h
plutosdrinputplugin.h
plutosdrinputsettings.h
# plutosdrinputthread.h
plutosdrinputthread.h
)
set(plutosdrinput_FORMS

4
plugins/samplesource/plutosdrinput/plutosdrinput.cpp
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@ -24,6 +24,8 @@
#include "plutosdrinput.h"
#define PLUTOSDR_BLOCKSIZE (1024*1024) //complex samples per buffer
MESSAGE_CLASS_DEFINITION(PlutoSDRInput::MsgFileRecord, Message)
PlutoSDRInput::PlutoSDRInput(DeviceSourceAPI *deviceAPI) :
@ -166,7 +168,7 @@ bool PlutoSDRInput::openDevice()
// acquire the channel
DevicePlutoSDRBox *plutoBox = m_deviceShared.m_deviceParams->getBox();
plutoBox->openRx();
m_plutoRxBuffer = plutoBox->createRxBuffer(1024*1024, false);
m_plutoRxBuffer = plutoBox->createRxBuffer(PLUTOSDR_BLOCKSIZE, false);
return true;
}

203
plugins/samplesource/plutosdrinput/plutosdrinputthread.cpp Normal file
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@ -0,0 +1,203 @@
///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2017 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/>. //
///////////////////////////////////////////////////////////////////////////////////
#include "plutosdr/deviceplutosdrbox.h"
#include "plutosdrinputsettings.h"
#include "plutosdrinputthread.h"
PlutoSDRInputThread::PlutoSDRInputThread(uint32_t blocksize, DevicePlutoSDRBox* plutoBox, SampleSinkFifo* sampleFifo, QObject* parent) :
QThread(parent),
m_running(false),
m_plutoBox(plutoBox),
m_blockSize(blocksize),
m_convertBuffer(blocksize),
m_sampleFifo(sampleFifo),
m_log2Decim(0),
m_fcPos(PlutoSDRInputSettings::FC_POS_CENTER)
{
m_buf = new qint16[blocksize*(sizeof(Sample)/sizeof(qint16))];
}
PlutoSDRInputThread::~PlutoSDRInputThread()
{
stopWork();
delete[] m_buf;
}
void PlutoSDRInputThread::startWork()
{
if (m_running) return; // return if running already
m_startWaitMutex.lock();
start();
while(!m_running)
m_startWaiter.wait(&m_startWaitMutex, 100);
m_startWaitMutex.unlock();
}
void PlutoSDRInputThread::stopWork()
{
if (!m_running) return; // return if not running
m_running = false;
wait();
}
void PlutoSDRInputThread::setLog2Decimation(unsigned int log2_decim)
{
m_log2Decim = log2_decim;
}
void PlutoSDRInputThread::setFcPos(int fcPos)
{
m_fcPos = fcPos;
}
void PlutoSDRInputThread::run()
{
m_running = true;
m_startWaiter.wakeAll();
while (m_running)
{
ssize_t nbytes_rx;
char *p_dat, *p_end;
std::ptrdiff_t p_inc;
int is;
// Refill RX buffer
nbytes_rx = m_plutoBox->rxBufferRefill();
if (nbytes_rx < 0) { qWarning("Error refilling buf %d\n",(int) nbytes_rx); break; }
// READ: Get pointers to RX buf and read IQ from RX buf port 0
p_inc = m_plutoBox->rxBufferStep();
p_end = m_plutoBox->rxBufferEnd();
is = 0;
for (p_dat = m_plutoBox->rxBufferFirst(); p_dat < p_end; p_dat += p_inc)
{
m_buf[2*is] = ((int16_t*)p_dat)[0]; // Real (I)
m_buf[2*is+1] = ((int16_t*)p_dat)[1]; // Imag (Q)
if (is == ((1<<m_log2Decim) - 1))
{
convert(m_buf, 2*(1<<m_log2Decim)); // I+Q -> 2
is = 0;
}
else
{
is++;
}
}
}
m_running = false;
}
// Decimate according to specified log2 (ex: log2=4 => decim=16)
void PlutoSDRInputThread::convert(const qint16* buf, qint32 len)
{
SampleVector::iterator it = m_convertBuffer.begin();
if (m_log2Decim == 0)
{
m_decimators.decimate1(&it, buf, len);
}
else
{
if (m_fcPos == 0) // Infra
{
switch (m_log2Decim)
{
case 1:
m_decimators.decimate2_inf(&it, buf, len);
break;
case 2:
m_decimators.decimate4_inf(&it, buf, len);
break;
case 3:
m_decimators.decimate8_inf(&it, buf, len);
break;
case 4:
m_decimators.decimate16_inf(&it, buf, len);
break;
case 5:
m_decimators.decimate32_inf(&it, buf, len);
break;
case 6:
m_decimators.decimate64_inf(&it, buf, len);
break;
default:
break;
}
}
else if (m_fcPos == 1) // Supra
{
switch (m_log2Decim)
{
case 1:
m_decimators.decimate2_sup(&it, buf, len);
break;
case 2:
m_decimators.decimate4_sup(&it, buf, len);
break;
case 3:
m_decimators.decimate8_sup(&it, buf, len);
break;
case 4:
m_decimators.decimate16_sup(&it, buf, len);
break;
case 5:
m_decimators.decimate32_sup(&it, buf, len);
break;
case 6:
m_decimators.decimate64_sup(&it, buf, len);
break;
default:
break;
}
}
else if (m_fcPos == 2) // Center
{
switch (m_log2Decim)
{
case 1:
m_decimators.decimate2_cen(&it, buf, len);
break;
case 2:
m_decimators.decimate4_cen(&it, buf, len);
break;
case 3:
m_decimators.decimate8_cen(&it, buf, len);
break;
case 4:
m_decimators.decimate16_cen(&it, buf, len);
break;
case 5:
m_decimators.decimate32_cen(&it, buf, len);
break;
case 6:
m_decimators.decimate64_cen(&it, buf, len);
break;
default:
break;
}
}
}
m_sampleFifo->write(m_convertBuffer.begin(), it);
}

67
plugins/samplesource/plutosdrinput/plutosdrinputthread.h Normal file
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@ -0,0 +1,67 @@
///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2017 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_PLUTOSDRINPUT_PLUTOSDRINPUTTHREAD_H_
#define PLUGINS_SAMPLESOURCE_PLUTOSDRINPUT_PLUTOSDRINPUTTHREAD_H_
#include <QThread>
#include <QMutex>
#include <QWaitCondition>
#include "dsp/samplesinkfifo.h"
#include "dsp/decimators.h"
#include "plutosdr/deviceplutosdrshared.h"
class DevicePlutoSDRBox;
class PlutoSDRInputThread : public QThread, public DevicePlutoSDRShared::ThreadInterface
{
Q_OBJECT
public:
PlutoSDRInputThread(uint32_t blocksize, DevicePlutoSDRBox* plutoBox, SampleSinkFifo* sampleFifo, QObject* parent = 0);
~PlutoSDRInputThread();
virtual void startWork();
virtual void stopWork();
virtual void setDeviceSampleRate(int sampleRate __attribute__((unused))) {}
virtual bool isRunning() { return m_running; }
void setLog2Decimation(unsigned int log2_decim);
void setFcPos(int fcPos);
private:
QMutex m_startWaitMutex;
QWaitCondition m_startWaiter;
bool m_running;
DevicePlutoSDRBox *m_plutoBox;
qint16 *m_buf; // holds I+Q values of each sample
uint32_t m_blockSize;
SampleVector m_convertBuffer;
SampleSinkFifo* m_sampleFifo;
unsigned int m_log2Decim; // soft decimation
int m_fcPos;
Decimators<qint16, SDR_SAMP_SZ, 12> m_decimators;
void run();
void convert(const qint16* buf, qint32 len);
};
#endif /* PLUGINS_SAMPLESOURCE_PLUTOSDRINPUT_PLUTOSDRINPUTTHREAD_H_ */