Deep redesign: Better support for FCD dongles #6: have two distinct plugins for Pro and Pro+. Only Pro+ is active at the moment

2026-06-02 06:04:39 -04:00 · 2015-09-04 04:10:38 +02:00
parent 410b6d15c0
commit 5453d63431
26 changed files with 1333 additions and 124 deletions
@@ -0,0 +1,164 @@
+///////////////////////////////////////////////////////////////////////////////////
+// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
+// written by Christian Daniel                                                   //
+//                                                                               //
+// 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 <QDebug>
+#include <stdio.h>
+#include <errno.h>
+#include "dsp/samplefifo.h"
+#include "fcdprothread.h"
+#include "fcdproinput.h"
+
+FCDProThread::FCDProThread(SampleFifo* sampleFifo, QObject* parent) :
+	QThread(parent),
+	fcd_handle(NULL),
+	m_running(false),
+	m_convertBuffer(FCD_BLOCKSIZE),
+	m_sampleFifo(sampleFifo)
+{
+	start();
+}
+
+FCDProThread::~FCDProThread()
+{
+}
+
+void FCDProThread::startWork()
+{
+	m_startWaitMutex.lock();
+
+	start();
+
+	while(!m_running)
+	{
+		m_startWaiter.wait(&m_startWaitMutex, 100);
+	}
+
+	m_startWaitMutex.unlock();
+}
+
+void FCDProThread::stopWork()
+{
+	m_running = false;
+	wait();
+}
+
+void FCDProThread::run()
+{
+	if ( !OpenSource("hw:CARD=V10") )
+	{
+		qCritical() << "FCDThread::run: cannot open FCD sound card";
+		return;
+	}
+	// TODO: fallback to original fcd
+
+	m_running = true;
+
+	while(m_running)
+	{
+		if (work(FCD_BLOCKSIZE) < 0)
+		{
+			break;
+		}
+	}
+
+	CloseSource();
+}
+
+bool FCDProThread::OpenSource(const char* cardname)
+{
+	bool fail = false;
+	snd_pcm_hw_params_t* params;
+	//fcd_rate = FCDPP_RATE;
+	//fcd_channels =2;
+	//fcd_format = SND_PCM_SFMT_U16_LE;
+	snd_pcm_stream_t fcd_stream = SND_PCM_STREAM_CAPTURE;
+
+	if (fcd_handle)
+	{
+		return false;
+	}
+
+	if (snd_pcm_open(&fcd_handle, cardname, fcd_stream, 0) < 0)
+	{
+		qCritical("FCDThread::OpenSource: cannot open %s", cardname);
+		return false;
+	}
+
+	snd_pcm_hw_params_alloca(&params);
+
+	if (snd_pcm_hw_params_any(fcd_handle, params) < 0)
+	{
+		qCritical("FCDThread::OpenSource: snd_pcm_hw_params_any failed");
+		fail = true;
+	}
+	else if (snd_pcm_hw_params(fcd_handle, params) < 0)
+	{
+		qCritical("FCDThread::OpenSource: snd_pcm_hw_params failed");
+		fail = true;
+		// TODO: check actual samplerate, may be crippled firmware
+	}
+	else
+	{
+		if (snd_pcm_start(fcd_handle) < 0)
+		{
+			qCritical("FCDThread::OpenSource: snd_pcm_start failed");
+			fail = true;
+		}
+	}
+
+	if (fail)
+	{
+		snd_pcm_close( fcd_handle );
+		return false;
+	}
+	else
+	{
+		qDebug("FCDThread::OpenSource: Funcube stream started");
+	}
+
+	return true;
+}
+
+void FCDProThread::CloseSource()
+{
+	if (fcd_handle)
+	{
+		snd_pcm_close( fcd_handle );
+	}
+
+	fcd_handle = NULL;
+}
+
+int FCDProThread::work(int n_items)
+{
+	int l;
+	SampleVector::iterator it;
+	void *out;
+
+	it = m_convertBuffer.begin();
+	out = (void *)&it[0];
+	l = snd_pcm_mmap_readi(fcd_handle, out, (snd_pcm_uframes_t)n_items);
+	if (l > 0)
+		m_sampleFifo->write(it, it + l);
+	if (l == -EPIPE) {
+		qDebug("FCD: Overrun detected");
+		return 0;
+	}
+	return l;
+}
+
+