kopia lustrzana https://github.com/f4exb/sdrangel
277 wiersze
8.1 KiB
C++
277 wiersze
8.1 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2017, 2018 Edouard Griffiths, F4EXB //
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// Copyright (C) 2017 Sergey Kostanbaev, Fairwaves Inc. //
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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 <errno.h>
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#include <chrono>
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#include <thread>
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#include "xtrx/devicextrx.h"
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#include "xtrxinputsettings.h"
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#include "xtrxinputthread.h"
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XTRXInputThread::XTRXInputThread(struct xtrx_dev *dev, unsigned int nbChannels, unsigned int uniqueChannelIndex, 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_nbChannels(nbChannels),
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m_uniqueChannelIndex(uniqueChannelIndex)
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{
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qDebug("XTRXInputThread::XTRXInputThread: nbChannels: %u uniqueChannelIndex: %u", nbChannels, uniqueChannelIndex);
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m_channels = new Channel[2];
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for (unsigned int i = 0; i < 2; i++) {
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m_channels[i].m_convertBuffer.resize(DeviceXTRX::blockSize, Sample{0,0});
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}
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}
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XTRXInputThread::~XTRXInputThread()
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{
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qDebug("XTRXInputThread::~XTRXInputThread");
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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 XTRXInputThread::startWork()
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{
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if (m_running) {
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return; // return if running already
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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 XTRXInputThread::stopWork()
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{
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if (!m_running) {
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return; // return if not running
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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 XTRXInputThread::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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unsigned int nbFifos = getNbFifos();
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if ((m_nbChannels != 0) && (nbFifos != 0))
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{
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xtrx_run_params params;
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xtrx_run_params_init(¶ms);
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params.dir = XTRX_RX;
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params.rx.chs = XTRX_CH_AB;
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params.rx.wfmt = XTRX_WF_16;
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params.rx.hfmt = XTRX_IQ_INT16;
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params.rx_stream_start = 2*DeviceXTRX::blockSize; // was 2*8192
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params.rx.paketsize = 2*DeviceXTRX::blockSize;
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if (m_nbChannels == 1)
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{
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qDebug("XTRXInputThread::run: SI mode for channel #%u", m_uniqueChannelIndex);
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params.rx.flags |= XTRX_RSP_SISO_MODE;
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if (m_uniqueChannelIndex == 1) {
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params.rx.flags |= XTRX_RSP_SWAP_AB;
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}
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}
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res = xtrx_run_ex(m_dev, ¶ms);
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if (res != 0)
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{
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qCritical("XTRXInputThread::run: could not start stream err:%d", res);
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m_running = false;
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}
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else
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{
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std::this_thread::sleep_for(std::chrono::milliseconds(50));
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qDebug("XTRXInputThread::run: stream started");
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}
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const unsigned int elemSize = 4; // XTRX uses 4 byte I+Q samples
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std::vector<std::vector<char>> buffMem(m_nbChannels, std::vector<char>(elemSize*DeviceXTRX::blockSize));
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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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xtrx_recv_ex_info_t nfo;
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nfo.samples = DeviceXTRX::blockSize;
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nfo.buffer_count = m_nbChannels;
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nfo.buffers = (void* const*) buffs.data();
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nfo.flags = RCVEX_DONT_INSER_ZEROS | RCVEX_DROP_OLD_ON_OVERFLOW;
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while (m_running)
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{
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res = xtrx_recv_sync_ex(m_dev, &nfo);
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if (res < 0)
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{
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qCritical("XTRXInputThread::run read error: %d", res);
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qDebug("XTRXInputThread::run: out_samples: %u out_events: %u", nfo.out_samples, nfo.out_events);
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break;
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}
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if (nfo.out_events & RCVEX_EVENT_OVERFLOW) {
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qDebug("XTRXInputThread::run: overflow");
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}
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if (m_nbChannels > 1) {
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callbackMI((const qint16*) buffs[0], (const qint16*) buffs[1], 2 * nfo.out_samples);
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} else {
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callbackSI((const qint16*) buffs[0], 2 * nfo.out_samples);
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}
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}
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res = xtrx_stop(m_dev, XTRX_RX);
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if (res != 0)
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{
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qCritical("XTRXInputThread::run: could not stop stream");
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}
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else
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{
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std::this_thread::sleep_for(std::chrono::milliseconds(50));
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qDebug("XTRXInputThread::run: stream stopped");
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}
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}
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else
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{
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qWarning("XTRXInputThread::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 XTRXInputThread::getNbFifos()
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{
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unsigned int fifoCount = 0;
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for (unsigned int i = 0; i < 2; 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 XTRXInputThread::setLog2Decimation(unsigned int channel, unsigned int log2_decim)
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{
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if (channel < 2) {
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m_channels[channel].m_log2Decim = log2_decim;
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}
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}
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unsigned int XTRXInputThread::getLog2Decimation(unsigned int channel) const
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{
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if (channel < 2) {
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return m_channels[channel].m_log2Decim;
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} else {
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return 0;
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}
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}
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void XTRXInputThread::setFifo(unsigned int channel, SampleSinkFifo *sampleFifo)
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{
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if (channel < 2) {
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m_channels[channel].m_sampleFifo = sampleFifo;
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}
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}
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SampleSinkFifo *XTRXInputThread::getFifo(unsigned int channel)
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{
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if (channel < 2) {
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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 XTRXInputThread::callbackSI(const qint16* buf, qint32 len)
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{
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SampleVector::iterator it = m_channels[m_uniqueChannelIndex].m_convertBuffer.begin();
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if (m_channels[m_uniqueChannelIndex].m_log2Decim == 0)
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{
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m_channels[m_uniqueChannelIndex].m_decimators.decimate1(&it, buf, len);
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}
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else
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{
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switch (m_channels[m_uniqueChannelIndex].m_log2Decim)
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{
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case 1:
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m_channels[m_uniqueChannelIndex].m_decimators.decimate2_cen(&it, buf, len);
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break;
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case 2:
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m_channels[m_uniqueChannelIndex].m_decimators.decimate4_cen(&it, buf, len);
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break;
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case 3:
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m_channels[m_uniqueChannelIndex].m_decimators.decimate8_cen(&it, buf, len);
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break;
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case 4:
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m_channels[m_uniqueChannelIndex].m_decimators.decimate16_cen(&it, buf, len);
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break;
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case 5:
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m_channels[m_uniqueChannelIndex].m_decimators.decimate32_cen(&it, buf, len);
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break;
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case 6:
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m_channels[m_uniqueChannelIndex].m_decimators.decimate64_cen(&it, buf, len);
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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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m_channels[m_uniqueChannelIndex].m_sampleFifo->write(m_channels[m_uniqueChannelIndex].m_convertBuffer.begin(), it);
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}
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void XTRXInputThread::callbackMI(const qint16* buf0, const qint16* buf1, qint32 len)
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{
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unsigned int uniqueChannelIndex = m_uniqueChannelIndex;
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// channel 0
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m_uniqueChannelIndex = 0;
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callbackSI(buf0, len);
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// channel 1
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m_uniqueChannelIndex = 1;
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callbackSI(buf1, len);
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m_uniqueChannelIndex = uniqueChannelIndex;
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}
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