mirror of
https://github.com/f4exb/sdrangel.git
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439 lines
15 KiB
C++
439 lines
15 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2015 Edouard Griffiths, F4EXB //
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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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// //
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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 <algorithm>
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#include <SoapySDR/Formats.hpp>
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#include <SoapySDR/Errors.hpp>
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#include "dsp/samplesourcefifo.h"
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#include "soapysdroutputthread.h"
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SoapySDROutputThread::SoapySDROutputThread(SoapySDR::Device* dev, unsigned int nbTxChannels, 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_sampleRate(0),
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m_nbChannels(nbTxChannels),
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m_interpolatorType(InterpolatorFloat)
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{
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qDebug("SoapySDROutputThread::SoapySDROutputThread");
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m_channels = new Channel[nbTxChannels];
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}
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SoapySDROutputThread::~SoapySDROutputThread()
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{
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qDebug("SoapySDROutputThread::~SoapySDROutputThread");
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if (m_running) {
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stopWork();
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}
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delete[] m_channels;
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}
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void SoapySDROutputThread::startWork()
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{
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if (m_running) {
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return;
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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 SoapySDROutputThread::stopWork()
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{
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if (!m_running) {
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return;
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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 SoapySDROutputThread::run()
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{
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m_running = true;
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m_startWaiter.wakeAll();
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unsigned int nbFifos = getNbFifos();
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if ((m_nbChannels > 0) && (nbFifos > 0))
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{
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// build channels list
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std::vector<std::size_t> channels(m_nbChannels);
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std::iota(channels.begin(), channels.end(), 0); // Fill with 0, 1, ..., m_nbChannels-1.
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//initialize the sample rate for all channels
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qDebug("SoapySDROutputThread::run: m_sampleRate: %u", m_sampleRate);
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for (const auto &it : channels) {
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m_dev->setSampleRate(SOAPY_SDR_TX, it, m_sampleRate);
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}
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// Determine sample format to be used
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double fullScale(0.0);
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std::string format = m_dev->getNativeStreamFormat(SOAPY_SDR_TX, channels.front(), fullScale);
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qDebug("SoapySDROutputThread::run: format: %s fullScale: %f", format.c_str(), fullScale);
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if ((format == "CS8") && (fullScale == 128.0)) { // 8 bit signed - native
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m_interpolatorType = Interpolator8;
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} else if ((format == "CS16") && (fullScale == 2048.0)) { // 12 bit signed - native
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m_interpolatorType = Interpolator12;
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} else if ((format == "CS16") && (fullScale == 32768.0)) { // 16 bit signed - native
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m_interpolatorType = Interpolator16;
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} else { // for other types make a conversion to float
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m_interpolatorType = InterpolatorFloat;
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format = "CF32";
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}
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unsigned int elemSize = SoapySDR::formatToSize(format); // sample (I+Q) size in bytes
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SoapySDR::Stream *stream = m_dev->setupStream(SOAPY_SDR_TX, format, channels);
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//allocate buffers for the stream read/write
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const unsigned int numElems = m_dev->getStreamMTU(stream); // number of samples (I+Q)
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std::vector<std::vector<char>> buffMem(m_nbChannels, std::vector<char>(elemSize*numElems));
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std::vector<void *> buffs(m_nbChannels);
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for (std::size_t i = 0; i < m_nbChannels; i++) {
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buffs[i] = buffMem[i].data();
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}
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m_dev->activateStream(stream);
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int flags(0);
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long long timeNs(0);
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float blockTime = ((float) numElems) / (m_sampleRate <= 0 ? 1024000 : m_sampleRate);
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long initialTtimeoutUs = 10000000 * blockTime; // 10 times the block time
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long timeoutUs = initialTtimeoutUs < 250000 ? 250000 : initialTtimeoutUs; // 250ms minimum
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qDebug("SoapySDROutputThread::run: numElems: %u elemSize: %u initialTtimeoutUs: %ld timeoutUs: %ld",
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numElems, elemSize, initialTtimeoutUs, timeoutUs);
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qDebug("SoapySDROutputThread::run: start running loop");
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while (m_running)
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{
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int ret = m_dev->writeStream(stream, buffs.data(), numElems, flags, timeNs, timeoutUs);
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if (ret == SOAPY_SDR_TIMEOUT)
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{
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qWarning("SoapySDROutputThread::run: timeout: flags: %d timeNs: %lld timeoutUs: %ld", flags, timeNs, timeoutUs);
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}
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else if (ret == SOAPY_SDR_OVERFLOW)
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{
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qWarning("SoapySDROutputThread::run: overflow: flags: %d timeNs: %lld timeoutUs: %ld", flags, timeNs, timeoutUs);
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}
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else if (ret < 0)
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{
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qCritical("SoapySDROutputThread::run: Unexpected write stream error: %s", SoapySDR::errToStr(ret));
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break;
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}
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if (m_nbChannels > 1)
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{
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callbackMO(buffs, numElems); // size given in number of samples (1 item per sample)
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}
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else
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{
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switch (m_interpolatorType)
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{
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case Interpolator8:
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callbackSO8((qint8*) buffs[0], numElems);
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break;
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case Interpolator12:
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callbackSO12((qint16*) buffs[0], numElems);
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break;
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case Interpolator16:
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callbackSO16((qint16*) buffs[0], numElems);
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break;
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case InterpolatorFloat:
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default:
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// TODO
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break;
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}
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}
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}
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qDebug("SoapySDROutputThread::run: stop running loop");
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m_dev->deactivateStream(stream);
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m_dev->closeStream(stream);
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}
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else
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{
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qWarning("SoapySDROutputThread::run: no channels or FIFO allocated. Aborting");
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}
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m_running = false;
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}
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unsigned int SoapySDROutputThread::getNbFifos()
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{
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unsigned int fifoCount = 0;
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for (unsigned int i = 0; i < m_nbChannels; i++)
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{
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if (m_channels[i].m_sampleFifo) {
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fifoCount++;
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}
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}
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return fifoCount;
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}
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void SoapySDROutputThread::setLog2Interpolation(unsigned int channel, unsigned int log2_interp)
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{
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if (channel < m_nbChannels) {
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m_channels[channel].m_log2Interp = log2_interp;
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}
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}
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unsigned int SoapySDROutputThread::getLog2Interpolation(unsigned int channel) const
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{
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if (channel < m_nbChannels) {
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return m_channels[channel].m_log2Interp;
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} else {
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return 0;
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}
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}
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void SoapySDROutputThread::setFifo(unsigned int channel, SampleSourceFifo *sampleFifo)
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{
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if (channel < m_nbChannels) {
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m_channels[channel].m_sampleFifo = sampleFifo;
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}
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}
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SampleSourceFifo *SoapySDROutputThread::getFifo(unsigned int channel)
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{
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if (channel < m_nbChannels) {
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return m_channels[channel].m_sampleFifo;
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} else {
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return 0;
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}
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}
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void SoapySDROutputThread::callbackMO(std::vector<void *>& buffs, qint32 samplesPerChannel)
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{
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for(unsigned int ichan = 0; ichan < m_nbChannels; ichan++)
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{
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if (m_channels[ichan].m_sampleFifo)
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{
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switch (m_interpolatorType)
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{
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case Interpolator8:
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callbackSO8((qint8*) buffs[ichan], samplesPerChannel, ichan);
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break;
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case Interpolator12:
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callbackSO12((qint16*) buffs[ichan], samplesPerChannel, ichan);
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break;
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case Interpolator16:
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callbackSO16((qint16*) buffs[ichan], samplesPerChannel, ichan);
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break;
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case InterpolatorFloat:
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default:
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// TODO
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break;
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}
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}
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else // no FIFO for this channel means channel is unused: fill with zeros
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{
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switch (m_interpolatorType)
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{
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case Interpolator8:
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std::fill((qint8*) buffs[ichan], (qint8*) buffs[ichan] + 2*samplesPerChannel, 0);
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break;
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case Interpolator12:
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case Interpolator16:
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std::fill((qint16*) buffs[ichan], (qint16*) buffs[ichan] + 2*samplesPerChannel, 0);
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break;
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case InterpolatorFloat:
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default:
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// TODO
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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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// 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 SoapySDROutputThread::callbackSO8(qint8* buf, qint32 len, unsigned int channel)
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{
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if (m_channels[channel].m_sampleFifo)
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{
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float bal = m_channels[channel].m_sampleFifo->getRWBalance();
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if (bal < -0.25) {
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qDebug("SoapySDROutputThread::callbackSO8: read lags: %f", bal);
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} else if (bal > 0.25) {
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qDebug("SoapySDROutputThread::callbackSO8: read leads: %f", bal);
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}
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SampleVector::iterator beginRead;
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m_channels[channel].m_sampleFifo->readAdvance(beginRead, len/(1<<m_channels[channel].m_log2Interp));
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beginRead -= len;
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if (m_channels[channel].m_log2Interp == 0)
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{
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m_channels[channel].m_interpolators8.interpolate1(&beginRead, buf, len*2);
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}
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else
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{
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switch (m_channels[channel].m_log2Interp)
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{
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case 1:
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m_channels[channel].m_interpolators8.interpolate2_cen(&beginRead, buf, len*2);
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break;
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case 2:
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m_channels[channel].m_interpolators8.interpolate4_cen(&beginRead, buf, len*2);
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break;
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case 3:
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m_channels[channel].m_interpolators8.interpolate8_cen(&beginRead, buf, len*2);
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break;
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case 4:
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m_channels[channel].m_interpolators8.interpolate16_cen(&beginRead, buf, len*2);
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break;
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case 5:
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m_channels[channel].m_interpolators8.interpolate32_cen(&beginRead, buf, len*2);
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break;
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case 6:
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m_channels[channel].m_interpolators8.interpolate64_cen(&beginRead, buf, len*2);
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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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else
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{
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std::fill(buf, buf+2*len, 0);
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}
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}
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void SoapySDROutputThread::callbackSO12(qint16* buf, qint32 len, unsigned int channel)
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{
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if (m_channels[channel].m_sampleFifo)
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{
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float bal = m_channels[channel].m_sampleFifo->getRWBalance();
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if (bal < -0.25) {
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qDebug("SoapySDROutputThread::callbackSO12: read lags: %f", bal);
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} else if (bal > 0.25) {
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qDebug("SoapySDROutputThread::callbackSO12: read leads: %f", bal);
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}
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SampleVector::iterator beginRead;
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m_channels[channel].m_sampleFifo->readAdvance(beginRead, len/(1<<m_channels[channel].m_log2Interp));
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beginRead -= len;
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if (m_channels[channel].m_log2Interp == 0)
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{
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m_channels[channel].m_interpolators12.interpolate1(&beginRead, buf, len*2);
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}
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else
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{
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switch (m_channels[channel].m_log2Interp)
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{
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case 1:
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m_channels[channel].m_interpolators12.interpolate2_cen(&beginRead, buf, len*2);
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break;
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case 2:
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m_channels[channel].m_interpolators12.interpolate4_cen(&beginRead, buf, len*2);
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break;
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case 3:
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m_channels[channel].m_interpolators12.interpolate8_cen(&beginRead, buf, len*2);
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break;
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case 4:
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m_channels[channel].m_interpolators12.interpolate16_cen(&beginRead, buf, len*2);
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break;
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case 5:
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m_channels[channel].m_interpolators12.interpolate32_cen(&beginRead, buf, len*2);
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break;
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case 6:
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m_channels[channel].m_interpolators12.interpolate64_cen(&beginRead, buf, len*2);
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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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else
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{
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std::fill(buf, buf+2*len, 0);
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}
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}
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void SoapySDROutputThread::callbackSO16(qint16* buf, qint32 len, unsigned int channel)
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{
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if (m_channels[channel].m_sampleFifo)
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{
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float bal = m_channels[channel].m_sampleFifo->getRWBalance();
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if (bal < -0.25) {
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qDebug("SoapySDROutputThread::callbackSO16: read lags: %f", bal);
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} else if (bal > 0.25) {
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qDebug("SoapySDROutputThread::callbackSO16: read leads: %f", bal);
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}
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SampleVector::iterator beginRead;
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m_channels[channel].m_sampleFifo->readAdvance(beginRead, len/(1<<m_channels[channel].m_log2Interp));
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beginRead -= len;
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if (m_channels[channel].m_log2Interp == 0)
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{
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m_channels[channel].m_interpolators16.interpolate1(&beginRead, buf, len*2);
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}
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else
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{
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switch (m_channels[channel].m_log2Interp)
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{
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case 1:
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m_channels[channel].m_interpolators16.interpolate2_cen(&beginRead, buf, len*2);
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break;
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case 2:
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m_channels[channel].m_interpolators16.interpolate4_cen(&beginRead, buf, len*2);
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break;
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case 3:
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m_channels[channel].m_interpolators16.interpolate8_cen(&beginRead, buf, len*2);
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break;
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case 4:
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m_channels[channel].m_interpolators16.interpolate16_cen(&beginRead, buf, len*2);
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break;
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case 5:
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m_channels[channel].m_interpolators16.interpolate32_cen(&beginRead, buf, len*2);
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break;
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case 6:
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m_channels[channel].m_interpolators16.interpolate64_cen(&beginRead, buf, len*2);
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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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else
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{
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std::fill(buf, buf+2*len, 0);
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}
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}
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