mirror of https://github.com/f4exb/sdrangel.git
239 lines
8.1 KiB
C++
239 lines
8.1 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2019-2020 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// (at your option) any later version. //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#include "bladerf2/devicebladerf2shared.h"
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#include "dsp/samplemofifo.h"
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#include "bladerf2mothread.h"
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BladeRF2MOThread::BladeRF2MOThread(struct bladerf* dev, QObject* parent) :
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QThread(parent),
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m_running(false),
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m_dev(dev),
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m_log2Interp(0)
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{
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qDebug("BladeRF2MOThread::BladeRF2MOThread");
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m_buf = new qint16[2*DeviceBladeRF2::blockSize*2];
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}
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BladeRF2MOThread::~BladeRF2MOThread()
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{
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qDebug("BladeRF2MOThread::~BladeRF2MOThread");
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if (m_running) {
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stopWork();
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}
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delete[] m_buf;
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}
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void BladeRF2MOThread::startWork()
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{
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m_startWaitMutex.lock();
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start();
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while(!m_running) {
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m_startWaiter.wait(&m_startWaitMutex, 100);
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}
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m_startWaitMutex.unlock();
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}
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void BladeRF2MOThread::stopWork()
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{
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m_running = false;
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wait();
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}
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void BladeRF2MOThread::run()
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{
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int res;
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m_running = true;
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m_startWaiter.wakeAll();
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int status;
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status = bladerf_sync_config(m_dev, BLADERF_TX_X2, BLADERF_FORMAT_SC16_Q11, 128, 16384, 32, 1500);
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if (status < 0)
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{
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qCritical("BladeRF2MOThread::run: cannot configure streams: %s", bladerf_strerror(status));
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}
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else
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{
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qDebug("BladeRF2MOThread::run: start running loop");
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while (m_running)
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{
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callback(m_buf, DeviceBladeRF2::blockSize);
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res = bladerf_sync_tx(m_dev, m_buf, DeviceBladeRF2::blockSize*2, 0, 1500);
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if (res < 0)
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{
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qCritical("BladeRF2MOThread::run sync Rx error: %s", bladerf_strerror(res));
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break;
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}
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}
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qDebug("BladeRF2MOThread::run: stop running loop");
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}
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m_running = false;
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}
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void BladeRF2MOThread::setLog2Interpolation(unsigned int log2Interp)
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{
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qDebug("BladeRF2MOThread::setLog2Interpolation: %u", log2Interp);
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m_log2Interp = log2Interp;
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}
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unsigned int BladeRF2MOThread::getLog2Interpolation() const
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{
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return m_log2Interp;
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}
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void BladeRF2MOThread::setFcPos(int fcPos)
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{
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m_fcPos = fcPos;
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}
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int BladeRF2MOThread::getFcPos() const
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{
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return m_fcPos;
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}
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void BladeRF2MOThread::callback(qint16* buf, qint32 samplesPerChannel)
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{
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unsigned int iPart1Begin, iPart1End, iPart2Begin, iPart2End;
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m_sampleFifo->readSync(samplesPerChannel/(1<<m_log2Interp), iPart1Begin, iPart1End, iPart2Begin, iPart2End);
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if (iPart1Begin != iPart1End)
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{
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callbackPart(buf, (iPart1End - iPart1Begin)*(1<<m_log2Interp), iPart1Begin);
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}
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if (iPart2Begin != iPart2End)
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{
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unsigned int shift = (iPart1End - iPart1Begin)*(1<<m_log2Interp);
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callbackPart(buf + 2*shift, (iPart2End - iPart2Begin)*(1<<m_log2Interp), iPart2Begin);
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}
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int status = bladerf_interleave_stream_buffer(BLADERF_TX_X2, BLADERF_FORMAT_SC16_Q11 , samplesPerChannel*2, (void *) buf);
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if (status < 0)
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{
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qCritical("BladeRF2MOThread::callback: cannot interleave buffer: %s", bladerf_strerror(status));
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return;
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}
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}
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// Interpolate according to specified log2 (ex: log2=4 => decim=16). len is a number of samples (not a number of I or Q)
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void BladeRF2MOThread::callbackPart(qint16* buf, qint32 nSamples, int iBegin)
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{
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for (unsigned int channel = 0; channel < 2; channel++)
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{
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SampleVector::iterator begin = m_sampleFifo->getData(channel).begin() + iBegin;
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if (m_log2Interp == 0)
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{
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m_interpolators[channel].interpolate1(&begin, &buf[channel*2*nSamples], 2*nSamples);
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}
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else
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{
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if (m_fcPos == 0) // Infra
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{
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switch (m_log2Interp)
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{
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case 1:
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m_interpolators[channel].interpolate2_inf(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 2:
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m_interpolators[channel].interpolate4_inf(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 3:
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m_interpolators[channel].interpolate8_inf(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 4:
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m_interpolators[channel].interpolate16_inf(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 5:
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m_interpolators[channel].interpolate32_inf(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 6:
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m_interpolators[channel].interpolate64_inf(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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default:
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break;
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}
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}
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else if (m_fcPos == 1) // Supra
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{
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switch (m_log2Interp)
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{
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case 1:
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m_interpolators[channel].interpolate2_sup(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 2:
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m_interpolators[channel].interpolate4_sup(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 3:
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m_interpolators[channel].interpolate8_sup(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 4:
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m_interpolators[channel].interpolate16_sup(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 5:
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m_interpolators[channel].interpolate32_sup(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 6:
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m_interpolators[channel].interpolate64_sup(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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default:
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break;
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}
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}
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else if (m_fcPos == 2) // Center
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{
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switch (m_log2Interp)
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{
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case 1:
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m_interpolators[channel].interpolate2_cen(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 2:
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m_interpolators[channel].interpolate4_cen(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 3:
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m_interpolators[channel].interpolate8_cen(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 4:
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m_interpolators[channel].interpolate16_cen(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 5:
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m_interpolators[channel].interpolate32_cen(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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case 6:
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m_interpolators[channel].interpolate64_cen(&begin, &buf[channel*2*nSamples], 2*nSamples);
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break;
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default:
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break;
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}
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}
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}
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}
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}
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