mirror of https://github.com/f4exb/sdrangel.git
136 lines
4.1 KiB
C++
136 lines
4.1 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2017-2019 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 "bladerf1outputthread.h"
|
|
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include <algorithm>
|
|
|
|
#include "dsp/samplesourcefifo.h"
|
|
|
|
Bladerf1OutputThread::Bladerf1OutputThread(struct bladerf* dev, SampleSourceFifo* sampleFifo, QObject* parent) :
|
|
QThread(parent),
|
|
m_running(false),
|
|
m_dev(dev),
|
|
m_sampleFifo(sampleFifo),
|
|
m_log2Interp(0)
|
|
{
|
|
std::fill(m_buf, m_buf + 2*BLADERFOUTPUT_BLOCKSIZE, 0);
|
|
}
|
|
|
|
Bladerf1OutputThread::~Bladerf1OutputThread()
|
|
{
|
|
stopWork();
|
|
}
|
|
|
|
void Bladerf1OutputThread::startWork()
|
|
{
|
|
m_startWaitMutex.lock();
|
|
start();
|
|
while(!m_running)
|
|
m_startWaiter.wait(&m_startWaitMutex, 100);
|
|
m_startWaitMutex.unlock();
|
|
}
|
|
|
|
void Bladerf1OutputThread::stopWork()
|
|
{
|
|
m_running = false;
|
|
wait();
|
|
}
|
|
|
|
void Bladerf1OutputThread::setLog2Interpolation(unsigned int log2_interp)
|
|
{
|
|
m_log2Interp = log2_interp;
|
|
}
|
|
|
|
void Bladerf1OutputThread::run()
|
|
{
|
|
int res;
|
|
|
|
m_running = true;
|
|
m_startWaiter.wakeAll();
|
|
|
|
while (m_running)
|
|
{
|
|
callback(m_buf, BLADERFOUTPUT_BLOCKSIZE);
|
|
|
|
if((res = bladerf_sync_tx(m_dev, m_buf, BLADERFOUTPUT_BLOCKSIZE, NULL, 10000)) < 0)
|
|
{
|
|
qCritical("BladerdOutputThread:run: sync error: %s", strerror(errno));
|
|
break;
|
|
}
|
|
}
|
|
|
|
m_running = false;
|
|
}
|
|
|
|
// Interpolate according to specified log2 (ex: log2=4 => decim=16)
|
|
void Bladerf1OutputThread::callback(qint16* buf, qint32 len)
|
|
{
|
|
SampleVector& data = m_sampleFifo->getData();
|
|
unsigned int iPart1Begin, iPart1End, iPart2Begin, iPart2End;
|
|
m_sampleFifo->read(len/(1<<m_log2Interp), iPart1Begin, iPart1End, iPart2Begin, iPart2End);
|
|
|
|
if (iPart1Begin != iPart1End) {
|
|
callbackPart(buf, data, iPart1Begin, iPart1End);
|
|
}
|
|
|
|
unsigned int shift = (iPart1End - iPart1Begin)*(1<<m_log2Interp);
|
|
|
|
if (iPart2Begin != iPart2End) {
|
|
callbackPart(buf + 2*shift, data, iPart2Begin, iPart2End);
|
|
}
|
|
}
|
|
|
|
void Bladerf1OutputThread::callbackPart(qint16* buf, SampleVector& data, unsigned int iBegin, unsigned int iEnd)
|
|
{
|
|
SampleVector::iterator beginRead = data.begin() + iBegin;
|
|
int len = 2*(iEnd - iBegin)*(1<<m_log2Interp);
|
|
|
|
if (m_log2Interp == 0)
|
|
{
|
|
m_interpolators.interpolate1(&beginRead, buf, len);
|
|
}
|
|
else
|
|
{
|
|
switch (m_log2Interp)
|
|
{
|
|
case 1:
|
|
m_interpolators.interpolate2_cen(&beginRead, buf, len, true);
|
|
break;
|
|
case 2:
|
|
m_interpolators.interpolate4_cen(&beginRead, buf, len, true);
|
|
break;
|
|
case 3:
|
|
m_interpolators.interpolate8_cen(&beginRead, buf, len, true);
|
|
break;
|
|
case 4:
|
|
m_interpolators.interpolate16_cen(&beginRead, buf, len, true);
|
|
break;
|
|
case 5:
|
|
m_interpolators.interpolate32_cen(&beginRead, buf, len, true);
|
|
break;
|
|
case 6:
|
|
m_interpolators.interpolate64_cen(&beginRead, buf, len, true);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|