HackRF output plugin: compiles

2026-06-01 13:47:01 -04:00 · 2017-01-08 04:13:20 +01:00
parent 1a8d96d874
commit 85ed39c767
18 changed files with 2094 additions and 10 deletions
@@ -0,0 +1,152 @@
+///////////////////////////////////////////////////////////////////////////////////
+// Copyright (C) 2017 Edouard Griffiths, F4EXB                                   //
+//                                                                               //
+// This program is free software; you can redistribute it and/or modify          //
+// it under the terms of the GNU General Public License as published by          //
+// the Free Software Foundation as version 3 of the License, or                  //
+//                                                                               //
+// This program is distributed in the hope that it will be useful,               //
+// but WITHOUT ANY WARRANTY; without even the implied warranty of                //
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                  //
+// GNU General Public License V3 for more details.                               //
+//                                                                               //
+// You should have received a copy of the GNU General Public License             //
+// along with this program. If not, see <http://www.gnu.org/licenses/>.          //
+///////////////////////////////////////////////////////////////////////////////////
+
+#include "hackrfoutputthread.h"
+
+#include <stdio.h>
+#include <errno.h>
+
+#include "dsp/samplesourcefifo.h"
+
+HackRFOutputThread *HackRFOutputThread::m_this = 0;
+
+HackRFOutputThread::HackRFOutputThread(hackrf_device* dev, SampleSourceFifo* sampleFifo, QObject* parent) :
+	QThread(parent),
+	m_running(false),
+	m_dev(dev),
+	m_convertBuffer(HACKRF_BLOCKSIZE),
+	m_sampleFifo(sampleFifo),
+	m_samplerate(10),
+	m_log2Interp(0)
+{
+	m_this = this;
+}
+
+HackRFOutputThread::~HackRFOutputThread()
+{
+	stopWork();
+	m_this = 0;
+}
+
+void HackRFOutputThread::startWork()
+{
+	//m_startWaitMutex.lock();
+	m_running = true;
+	start();
+	/*
+	while(!m_running)
+		m_startWaiter.wait(&m_startWaitMutex, 100);
+	m_startWaitMutex.unlock();*/
+}
+
+void HackRFOutputThread::stopWork()
+{
+	qDebug("HackRFOutputThread::stopWork");
+	m_running = false;
+	wait();
+}
+
+void HackRFOutputThread::setSamplerate(uint32_t samplerate)
+{
+	m_samplerate = samplerate;
+}
+
+void HackRFOutputThread::setLog2Interpolation(unsigned int log2Interp)
+{
+	m_log2Interp = log2Interp;
+}
+
+void HackRFOutputThread::run()
+{
+	hackrf_error rc;
+
+	//m_running = true;
+	m_startWaiter.wakeAll();
+
+	rc = (hackrf_error) hackrf_start_tx(m_dev, tx_callback, NULL);
+
+	if (rc != HACKRF_SUCCESS)
+	{
+		qCritical("HackRFOutputThread::run: failed to start HackRF Tx: %s", hackrf_error_name(rc));
+	}
+	else
+	{
+		while ((m_running) && (hackrf_is_streaming(m_dev) == HACKRF_TRUE))
+		{
+			sleep(1);
+		}
+	}
+
+	rc = (hackrf_error) hackrf_stop_tx(m_dev);
+
+	if (rc == HACKRF_SUCCESS)
+	{
+		qDebug("HackRFOutputThread::run: stopped HackRF Tx");
+	}
+	else
+	{
+		qDebug("HackRFOutputThread::run: failed to stop HackRF Tx: %s", hackrf_error_name(rc));
+	}
+
+	//m_running = false;
+}
+
+//  Interpolate according to specified log2 (ex: log2=4 => interp=16)
+void HackRFOutputThread::callback(qint16* buf, qint32 len)
+{
+    SampleVector::iterator beginRead;
+    m_sampleFifo->readAdvance(beginRead, len/(1<<m_log2Interp));
+    beginRead -= len;
+
+	if (m_log2Interp == 0)
+	{
+	    m_interpolators.interpolate1(&beginRead, buf, len*2);
+	}
+	else
+	{
+        switch (m_log2Interp)
+        {
+        case 1:
+            m_interpolators.interpolate2_cen(&beginRead, buf, len*2);
+            break;
+        case 2:
+            m_interpolators.interpolate4_cen(&beginRead, buf, len*2);
+            break;
+        case 3:
+            m_interpolators.interpolate8_cen(&beginRead, buf, len*2);
+            break;
+        case 4:
+            m_interpolators.interpolate16_cen(&beginRead, buf, len*2);
+            break;
+        case 5:
+            m_interpolators.interpolate32_cen(&beginRead, buf, len*2);
+            break;
+        case 6:
+            m_interpolators.interpolate64_cen(&beginRead, buf, len*2);
+            break;
+        default:
+            break;
+        }
+	}
+}
+
+
+int HackRFOutputThread::tx_callback(hackrf_transfer* transfer)
+{
+	qint32 bytes_to_write = transfer->valid_length;
+	m_this->callback((qint16 *) transfer->buffer, bytes_to_write);
+	return 0;
+}