mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-27 02:09:14 -05:00
144 lines
3.7 KiB
C++
144 lines
3.7 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// 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/>. //
|
|
///////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
|
|
#include "airspyhfthread.h"
|
|
|
|
#include "dsp/samplesinkfifo.h"
|
|
|
|
AirspyHFThread *AirspyHFThread::m_this = 0;
|
|
|
|
AirspyHFThread::AirspyHFThread(airspyhf_device_t* dev, SampleSinkFifo* sampleFifo, QObject* parent) :
|
|
QThread(parent),
|
|
m_running(false),
|
|
m_dev(dev),
|
|
m_convertBuffer(AIRSPYHF_BLOCKSIZE),
|
|
m_sampleFifo(sampleFifo),
|
|
m_samplerate(10),
|
|
m_log2Decim(0)
|
|
{
|
|
m_this = this;
|
|
}
|
|
|
|
AirspyHFThread::~AirspyHFThread()
|
|
{
|
|
stopWork();
|
|
m_this = 0;
|
|
}
|
|
|
|
void AirspyHFThread::startWork()
|
|
{
|
|
m_startWaitMutex.lock();
|
|
start();
|
|
while(!m_running)
|
|
m_startWaiter.wait(&m_startWaitMutex, 100);
|
|
m_startWaitMutex.unlock();
|
|
}
|
|
|
|
void AirspyHFThread::stopWork()
|
|
{
|
|
qDebug("AirspyThread::stopWork");
|
|
m_running = false;
|
|
wait();
|
|
}
|
|
|
|
void AirspyHFThread::setSamplerate(uint32_t samplerate)
|
|
{
|
|
m_samplerate = samplerate;
|
|
}
|
|
|
|
void AirspyHFThread::setLog2Decimation(unsigned int log2_decim)
|
|
{
|
|
m_log2Decim = log2_decim;
|
|
}
|
|
|
|
void AirspyHFThread::run()
|
|
{
|
|
airspyhf_error rc;
|
|
|
|
m_running = true;
|
|
m_startWaiter.wakeAll();
|
|
|
|
rc = (airspyhf_error) airspyhf_start(m_dev, rx_callback, 0);
|
|
|
|
if (rc != AIRSPYHF_SUCCESS)
|
|
{
|
|
qCritical("AirspyHFThread::run: failed to start Airspy Rx");
|
|
}
|
|
else
|
|
{
|
|
while ((m_running) && (airspyhf_is_streaming(m_dev) != 0))
|
|
{
|
|
sleep(1);
|
|
}
|
|
}
|
|
|
|
rc = (airspyhf_error) airspyhf_stop(m_dev);
|
|
|
|
if (rc == AIRSPYHF_SUCCESS) {
|
|
qDebug("AirspyHFThread::run: stopped Airspy Rx");
|
|
} else {
|
|
qDebug("AirspyHFThread::run: failed to stop Airspy Rx");
|
|
}
|
|
|
|
m_running = false;
|
|
}
|
|
|
|
// Decimate according to specified log2 (ex: log2=4 => decim=16)
|
|
void AirspyHFThread::callback(const qint16* buf, qint32 len)
|
|
{
|
|
SampleVector::iterator it = m_convertBuffer.begin();
|
|
|
|
switch (m_log2Decim)
|
|
{
|
|
case 0:
|
|
m_decimators.decimate1(&it, buf, len);
|
|
break;
|
|
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);
|
|
}
|
|
|
|
|
|
int AirspyHFThread::rx_callback(airspyhf_transfer_t* transfer)
|
|
{
|
|
qint32 bytes_to_write = transfer->sample_count * sizeof(qint16);
|
|
m_this->callback((qint16 *) transfer->samples, bytes_to_write);
|
|
return 0;
|
|
}
|