mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-03 15:31:15 -05:00
137 lines
3.9 KiB
C++
137 lines
3.9 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2021 Jon Beniston, M7RCE //
|
|
// //
|
|
// 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 //
|
|
// (at your option) any later version. //
|
|
// //
|
|
// 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 "visa.h"
|
|
|
|
#ifdef _MSC_VER
|
|
#include <windows.h>
|
|
#else
|
|
#include <dlfcn.h>
|
|
#endif
|
|
|
|
VISA::VISA() :
|
|
m_defaultRM(0),
|
|
viOpenDefaultRM(nullptr),
|
|
viOpen(nullptr),
|
|
viClose(nullptr),
|
|
viPrintf(nullptr),
|
|
viScanf(nullptr),
|
|
m_available(false)
|
|
{
|
|
#ifdef _MSC_VER
|
|
const char *visaName = "visa32.dll"; // Loads visa64.dll on WIN64
|
|
#else
|
|
const char *visaName = "libktvisa32.so"; // Keysight library
|
|
#endif
|
|
|
|
visaLibrary = libraryOpen(visaName);
|
|
if (visaLibrary)
|
|
{
|
|
viOpenDefaultRM = (ViStatus (*)(ViPSession)) libraryFunc(visaLibrary, "viOpenDefaultRM");
|
|
viOpen = (ViStatus (*)(ViSession sesn, ViRsrc name, ViAccessMode mode, ViUInt32 timeout, ViPSession vi)) libraryFunc(visaLibrary, "viOpen");
|
|
viClose = (ViStatus (*)(ViObject vi)) libraryFunc(visaLibrary, "viClose");
|
|
viPrintf = (ViStatus (*) (ViSession vi, ViString writeFmt, ...)) libraryFunc(visaLibrary, "viPrintf");
|
|
viScanf = (ViStatus (*) (ViSession vi, ViString writeFmt, ...)) libraryFunc(visaLibrary, "viScanf");
|
|
|
|
if (viOpenDefaultRM && viOpen && viClose && viPrintf) {
|
|
m_available = true;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
qDebug() << "VISA::VISA: Unable to load " << visaName;
|
|
}
|
|
}
|
|
|
|
ViSession VISA::openDefault()
|
|
{
|
|
if (isAvailable() && (m_defaultRM == 0))
|
|
{
|
|
viOpenDefaultRM(&m_defaultRM);
|
|
return m_defaultRM;
|
|
}
|
|
else
|
|
{
|
|
return m_defaultRM;
|
|
}
|
|
}
|
|
|
|
void VISA::closeDefault()
|
|
{
|
|
if (isAvailable())
|
|
{
|
|
viClose(m_defaultRM);
|
|
m_defaultRM = 0;
|
|
}
|
|
}
|
|
|
|
ViSession VISA::open(const QString& device)
|
|
{
|
|
ViSession session;
|
|
if (isAvailable())
|
|
{
|
|
if (VI_SUCCESS == viOpen(m_defaultRM, device.toLatin1().data(), VI_NULL, VI_NULL, &session))
|
|
{
|
|
qDebug() << "VISA::open: Opened VISA device: " << device;
|
|
return session;
|
|
}
|
|
else
|
|
{
|
|
qDebug() << "VISA::open: Failed to open VISA device: " << device;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void VISA::close(ViSession session)
|
|
{
|
|
if (isAvailable()) {
|
|
viClose(session);
|
|
}
|
|
}
|
|
|
|
|
|
#ifdef _MSC_VER
|
|
|
|
void *VISA::libraryOpen(const char *filename)
|
|
{
|
|
HMODULE module;
|
|
module = LoadLibrary ((LPCSTR)filename);
|
|
return module;
|
|
}
|
|
|
|
void *VISA::libraryFunc(void *library, const char *function)
|
|
{
|
|
return GetProcAddress ((HMODULE)library, function);
|
|
}
|
|
|
|
#else
|
|
|
|
void *VISA::libraryOpen(const char *filename)
|
|
{
|
|
return dlopen (filename, RTLD_LAZY);
|
|
}
|
|
|
|
void *VISA::libraryFunc(void *library, const char *function)
|
|
{
|
|
return dlsym (library, function);
|
|
}
|
|
|
|
#endif
|