mirror of
https://github.com/f4exb/sdrangel.git
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325 lines
7.6 KiB
C++
325 lines
7.6 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2015-2020 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 "hackrfinputthread.h"
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#include <stdio.h>
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#include <errno.h>
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#include <algorithm>
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#include "dsp/samplesinkfifo.h"
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HackRFInputThread::HackRFInputThread(hackrf_device* dev, SampleSinkFifo* sampleFifo, 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_convertBuffer(HACKRF_BLOCKSIZE),
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m_sampleFifo(sampleFifo),
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m_samplerate(10),
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m_log2Decim(0),
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m_fcPos(0),
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m_iqOrder(true)
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{
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std::fill(m_buf, m_buf + 2*HACKRF_BLOCKSIZE, 0);
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}
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HackRFInputThread::~HackRFInputThread()
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{
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stopWork();
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}
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void HackRFInputThread::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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m_startWaitMutex.unlock();
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}
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void HackRFInputThread::stopWork()
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{
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qDebug("HackRFThread::stopWork");
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m_running = false;
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wait();
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}
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void HackRFInputThread::setSamplerate(uint32_t samplerate)
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{
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m_samplerate = samplerate;
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}
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void HackRFInputThread::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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void HackRFInputThread::setFcPos(int fcPos)
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{
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m_fcPos = fcPos;
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}
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void HackRFInputThread::run()
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{
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hackrf_error rc;
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m_running = true;
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m_startWaiter.wakeAll();
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if (hackrf_is_streaming(m_dev) == HACKRF_TRUE)
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{
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qDebug("HackRFInputThread::run: HackRF is streaming already");
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}
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else
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{
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qDebug("HackRFInputThread::run: HackRF is not streaming");
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rc = (hackrf_error) hackrf_start_rx(m_dev, rx_callback, this);
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if (rc == HACKRF_SUCCESS)
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{
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qDebug("HackRFInputThread::run: started HackRF Rx");
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}
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else
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{
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qDebug("HackRFInputThread::run: failed to start HackRF Rx: %s", hackrf_error_name(rc));
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}
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}
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while ((m_running) && (hackrf_is_streaming(m_dev) == HACKRF_TRUE))
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{
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usleep(200000);
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}
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if (hackrf_is_streaming(m_dev) == HACKRF_TRUE)
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{
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rc = (hackrf_error) hackrf_stop_rx(m_dev);
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if (rc == HACKRF_SUCCESS)
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{
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qDebug("HackRFInputThread::run: stopped HackRF Rx");
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}
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else
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{
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qDebug("HackRFInputThread::run: failed to stop HackRF Rx: %s", hackrf_error_name(rc));
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}
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}
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m_running = false;
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}
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// Decimate according to specified log2 (ex: log2=4 => decim=16)
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void HackRFInputThread::callbackIQ(const qint8* buf, qint32 len)
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{
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SampleVector::iterator it = m_convertBuffer.begin();
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if (m_log2Decim == 0)
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{
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m_decimatorsIQ.decimate1(&it, buf, len);
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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_log2Decim)
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{
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case 1:
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m_decimatorsIQ.decimate2_inf(&it, buf, len);
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break;
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case 2:
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m_decimatorsIQ.decimate4_inf_txsync(&it, buf, len);
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break;
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case 3:
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m_decimatorsIQ.decimate8_inf_txsync(&it, buf, len);
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break;
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case 4:
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m_decimatorsIQ.decimate16_inf_txsync(&it, buf, len);
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break;
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case 5:
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m_decimatorsIQ.decimate32_inf_txsync(&it, buf, len);
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break;
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case 6:
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m_decimatorsIQ.decimate64_inf_txsync(&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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else if (m_fcPos == 1) // Supra
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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_decimatorsIQ.decimate2_sup(&it, buf, len);
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break;
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case 2:
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m_decimatorsIQ.decimate4_sup_txsync(&it, buf, len);
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break;
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case 3:
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m_decimatorsIQ.decimate8_sup_txsync(&it, buf, len);
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break;
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case 4:
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m_decimatorsIQ.decimate16_sup_txsync(&it, buf, len);
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break;
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case 5:
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m_decimatorsIQ.decimate32_sup_txsync(&it, buf, len);
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break;
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case 6:
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m_decimatorsIQ.decimate64_sup_txsync(&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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else if (m_fcPos == 2) // Center
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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_decimatorsIQ.decimate2_cen(&it, buf, len);
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break;
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case 2:
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m_decimatorsIQ.decimate4_cen(&it, buf, len);
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break;
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case 3:
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m_decimatorsIQ.decimate8_cen(&it, buf, len);
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break;
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case 4:
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m_decimatorsIQ.decimate16_cen(&it, buf, len);
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break;
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case 5:
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m_decimatorsIQ.decimate32_cen(&it, buf, len);
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break;
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case 6:
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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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}
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m_sampleFifo->write(m_convertBuffer.begin(), it);
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}
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void HackRFInputThread::callbackQI(const qint8* buf, qint32 len)
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{
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SampleVector::iterator it = m_convertBuffer.begin();
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if (m_log2Decim == 0)
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{
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m_decimatorsQI.decimate1(&it, buf, len);
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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_log2Decim)
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{
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case 1:
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m_decimatorsQI.decimate2_inf(&it, buf, len);
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break;
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case 2:
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m_decimatorsQI.decimate4_inf_txsync(&it, buf, len);
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break;
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case 3:
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m_decimatorsQI.decimate8_inf_txsync(&it, buf, len);
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break;
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case 4:
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m_decimatorsQI.decimate16_inf_txsync(&it, buf, len);
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break;
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case 5:
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m_decimatorsQI.decimate32_inf_txsync(&it, buf, len);
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break;
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case 6:
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m_decimatorsQI.decimate64_inf_txsync(&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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else if (m_fcPos == 1) // Supra
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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_decimatorsQI.decimate2_sup(&it, buf, len);
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break;
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case 2:
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m_decimatorsQI.decimate4_sup_txsync(&it, buf, len);
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break;
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case 3:
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m_decimatorsQI.decimate8_sup_txsync(&it, buf, len);
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break;
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case 4:
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m_decimatorsQI.decimate16_sup_txsync(&it, buf, len);
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break;
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case 5:
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m_decimatorsQI.decimate32_sup_txsync(&it, buf, len);
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break;
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case 6:
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m_decimatorsQI.decimate64_sup_txsync(&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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else if (m_fcPos == 2) // Center
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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_decimatorsQI.decimate2_cen(&it, buf, len);
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break;
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case 2:
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m_decimatorsQI.decimate4_cen(&it, buf, len);
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break;
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case 3:
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m_decimatorsQI.decimate8_cen(&it, buf, len);
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break;
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case 4:
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m_decimatorsQI.decimate16_cen(&it, buf, len);
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break;
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case 5:
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m_decimatorsQI.decimate32_cen(&it, buf, len);
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break;
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case 6:
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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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}
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m_sampleFifo->write(m_convertBuffer.begin(), it);
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}
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int HackRFInputThread::rx_callback(hackrf_transfer* transfer)
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{
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HackRFInputThread *thread = (HackRFInputThread *) transfer->rx_ctx;
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qint32 bytes_to_write = transfer->valid_length;
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if (thread->m_iqOrder) {
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thread->callbackIQ((qint8 *) transfer->buffer, bytes_to_write);
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} else {
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thread->callbackQI((qint8 *) transfer->buffer, bytes_to_write);
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}
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return 0;
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}
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