mirror of https://github.com/f4exb/sdrangel.git
141 lines
4.2 KiB
C++
141 lines
4.2 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
|
|
// written by Christian Daniel //
|
|
// Copyright (C) 2015-2020 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
|
|
// //
|
|
// 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 //
|
|
// (at your option) any later version. //
|
|
// //
|
|
// 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 <QtGlobal>
|
|
#include <algorithm>
|
|
#include "perseusworker.h"
|
|
|
|
PerseusWorker *PerseusWorker::m_this = 0;
|
|
|
|
PerseusWorker::PerseusWorker(perseus_descr* dev, SampleSinkFifo* sampleFifo, QObject* parent) :
|
|
QObject(parent),
|
|
m_running(false),
|
|
m_dev(dev),
|
|
m_convertBuffer(PERSEUS_NBSAMPLES),
|
|
m_sampleFifo(sampleFifo),
|
|
m_log2Decim(0),
|
|
m_iqOrder(true)
|
|
{
|
|
m_this = this;
|
|
std::fill(m_buf, m_buf + 2*PERSEUS_NBSAMPLES, 0);
|
|
}
|
|
|
|
PerseusWorker::~PerseusWorker()
|
|
{
|
|
stopWork();
|
|
m_this = 0;
|
|
}
|
|
|
|
void PerseusWorker::startWork()
|
|
{
|
|
qDebug("PerseusWorker::startWork");
|
|
int rc = perseus_start_async_input(m_dev, PERSEUS_BLOCKSIZE, rx_callback, 0);
|
|
|
|
if (rc < 0)
|
|
{
|
|
qCritical("PerseusWorker::run: failed to start Perseus Rx: %s", perseus_errorstr());
|
|
m_running = false;
|
|
}
|
|
else
|
|
{
|
|
qDebug("PerseusWorker::run: start Perseus Rx");
|
|
m_running = true;
|
|
}
|
|
}
|
|
|
|
void PerseusWorker::stopWork()
|
|
{
|
|
qDebug("PerseusWorker::stopWork");
|
|
|
|
int rc = perseus_stop_async_input(m_dev);
|
|
|
|
if (rc < 0) {
|
|
qCritical("PerseusWorker::run: failed to stop Perseus Rx: %s", perseus_errorstr());
|
|
} else {
|
|
qDebug("PerseusWorker::run: stopped Perseus Rx");
|
|
}
|
|
|
|
m_running = false;
|
|
}
|
|
|
|
void PerseusWorker::setLog2Decimation(unsigned int log2_decim)
|
|
{
|
|
m_log2Decim = log2_decim;
|
|
}
|
|
|
|
|
|
void PerseusWorker::callbackIQ(const uint8_t* buf, qint32 len)
|
|
{
|
|
SampleVector::iterator it = m_convertBuffer.begin();
|
|
|
|
switch (m_log2Decim)
|
|
{
|
|
case 0:
|
|
m_decimators32IQ.decimate1(&it, (TripleByteLE<qint32>*) buf, len);
|
|
break;
|
|
case 1:
|
|
m_decimators64IQ.decimate2_cen(&it, (TripleByteLE<qint64>*) buf, len);
|
|
break;
|
|
case 2:
|
|
m_decimators64IQ.decimate4_cen(&it, (TripleByteLE<qint64>*) buf, len);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
m_sampleFifo->write(m_convertBuffer.begin(), it);
|
|
}
|
|
|
|
void PerseusWorker::callbackQI(const uint8_t* buf, qint32 len)
|
|
{
|
|
SampleVector::iterator it = m_convertBuffer.begin();
|
|
|
|
switch (m_log2Decim)
|
|
{
|
|
case 0:
|
|
m_decimators32QI.decimate1(&it, (TripleByteLE<qint32>*) buf, len);
|
|
break;
|
|
case 1:
|
|
m_decimators64QI.decimate2_cen(&it, (TripleByteLE<qint64>*) buf, len);
|
|
break;
|
|
case 2:
|
|
m_decimators64QI.decimate4_cen(&it, (TripleByteLE<qint64>*) buf, len);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
m_sampleFifo->write(m_convertBuffer.begin(), it);
|
|
}
|
|
|
|
int PerseusWorker::rx_callback(void *buf, int buf_size, void *extra)
|
|
{
|
|
(void) extra;
|
|
qint32 nbIAndQ = buf_size / 3; // 3 bytes per I or Q
|
|
|
|
if (m_this->m_iqOrder) {
|
|
m_this->callbackIQ((uint8_t*) buf, nbIAndQ);
|
|
} else {
|
|
m_this->callbackQI((uint8_t*) buf, nbIAndQ);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|