mirror of
https://github.com/f4exb/sdrangel.git
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262 lines
7.5 KiB
C++
262 lines
7.5 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 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 <errno.h>
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#include <chrono>
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#include <thread>
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#include "dsp/samplemififo.h"
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#include "xtrxmithread.h"
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XTRXMIThread::XTRXMIThread(struct xtrx_dev *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_sampleFifo(nullptr),
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m_iqOrder(true)
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{
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qDebug("XTRXMIThread::XTRXMIThread");
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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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m_vBegin.push_back(m_channels[0].m_convertBuffer.begin());
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m_vBegin.push_back(m_channels[1].m_convertBuffer.begin());
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}
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XTRXMIThread::~XTRXMIThread()
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{
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qDebug("XTRXMIThread::~XTRXMIThread");
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if (m_running) {
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stopWork();
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}
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}
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void XTRXMIThread::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 XTRXMIThread::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 XTRXMIThread::run()
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{
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int res;
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int lengths[2];
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m_running = true;
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m_startWaiter.wakeAll();
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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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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(2, std::vector<char>(elemSize*DeviceXTRX::blockSize));
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std::vector<void *> buffs(2);
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for (std::size_t i = 0; i < 2; 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 = 2;
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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_iqOrder)
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{
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lengths[0] = callbackSIIQ(0, (const qint16*) buffs[0], 2*nfo.out_samples);
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lengths[1] = callbackSIIQ(1, (const qint16*) buffs[1], 2*nfo.out_samples);
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}
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else
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{
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lengths[0] = callbackSIQI(0, (const qint16*) buffs[0], 2*nfo.out_samples);
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lengths[1] = callbackSIQI(1, (const qint16*) buffs[1], 2*nfo.out_samples);
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}
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if (lengths[0] == lengths[1])
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{
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m_sampleFifo->writeSync(m_vBegin, lengths[0]);
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}
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else
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{
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qWarning("XTRXMIThread::run: unequal channel lengths: [0]=%d [1]=%d", lengths[0], lengths[1]);
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m_sampleFifo->writeSync(m_vBegin, (std::min)(lengths[0], lengths[1]));
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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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m_running = false;
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}
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void XTRXMIThread::setLog2Decimation(unsigned int log2_decim)
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{
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m_log2Decim = log2_decim;
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}
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unsigned int XTRXMIThread::getLog2Decimation() const
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{
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return m_log2Decim;
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}
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int XTRXMIThread::callbackSIIQ(unsigned int channel, const qint16* buf, qint32 len)
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{
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SampleVector::iterator it = m_channels[channel].m_convertBuffer.begin();
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if (m_log2Decim == 0)
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{
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m_channels[channel].m_decimatorsIQ.decimate1(&it, buf, len);
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}
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else
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{
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switch (m_log2Decim)
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{
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case 1:
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m_channels[channel].m_decimatorsIQ.decimate2_cen(&it, buf, len);
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break;
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case 2:
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m_channels[channel].m_decimatorsIQ.decimate4_cen(&it, buf, len);
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break;
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case 3:
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m_channels[channel].m_decimatorsIQ.decimate8_cen(&it, buf, len);
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break;
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case 4:
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m_channels[channel].m_decimatorsIQ.decimate16_cen(&it, buf, len);
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break;
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case 5:
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m_channels[channel].m_decimatorsIQ.decimate32_cen(&it, buf, len);
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break;
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case 6:
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m_channels[channel].m_decimatorsIQ.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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return it - m_channels[channel].m_convertBuffer.begin();
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}
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int XTRXMIThread::callbackSIQI(unsigned int channel, const qint16* buf, qint32 len)
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{
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SampleVector::iterator it = m_channels[channel].m_convertBuffer.begin();
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if (m_log2Decim == 0)
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{
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m_channels[channel].m_decimatorsQI.decimate1(&it, buf, len);
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}
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else
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{
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switch (m_log2Decim)
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{
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case 1:
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m_channels[channel].m_decimatorsQI.decimate2_cen(&it, buf, len);
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break;
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case 2:
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m_channels[channel].m_decimatorsQI.decimate4_cen(&it, buf, len);
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break;
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case 3:
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m_channels[channel].m_decimatorsQI.decimate8_cen(&it, buf, len);
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break;
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case 4:
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m_channels[channel].m_decimatorsQI.decimate16_cen(&it, buf, len);
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break;
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case 5:
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m_channels[channel].m_decimatorsQI.decimate32_cen(&it, buf, len);
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break;
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case 6:
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m_channels[channel].m_decimatorsQI.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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return it - m_channels[channel].m_convertBuffer.begin();
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}
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