701 lines
19 KiB
C++
701 lines
19 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2016-2022 CERN
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* Copyright (C) 2018-2023 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* @author Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
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* @author Maciej Suminski <maciej.suminski@cern.ch>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 3
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* of the License, or (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 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, you may find one here:
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* https://www.gnu.org/licenses/gpl-3.0.html
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* or you may search the http://www.gnu.org website for the version 3 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <config.h> // Needed for MSW compilation
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#include <common.h>
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#include <locale_io.h>
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#include <fmt/core.h>
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#include <paths.h>
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#include "ngspice_circuit_model.h"
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#include "ngspice.h"
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#include "spice_reporter.h"
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#include "spice_settings.h"
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#include <wx/stdpaths.h>
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#include <wx/dir.h>
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#include <wx/log.h>
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#include <stdexcept>
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#include <algorithm>
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/**
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* Flag to enable debug output of Ngspice simulator.
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*
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* Use "KICAD_NGSPICE" to enable Ngspice simulator tracing.
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*
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* @ingroup trace_env_vars
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*/
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static const wxChar* const traceNgspice = wxT( "KICAD_NGSPICE" );
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NGSPICE::NGSPICE() :
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m_ngSpice_Init( nullptr ),
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m_ngSpice_Circ( nullptr ),
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m_ngSpice_Command( nullptr ),
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m_ngGet_Vec_Info( nullptr ),
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m_ngSpice_CurPlot( nullptr ),
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m_ngSpice_AllPlots( nullptr ),
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m_ngSpice_AllVecs( nullptr ),
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m_ngSpice_Running( nullptr ),
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m_error( false )
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{
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init_dll();
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}
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NGSPICE::~NGSPICE() = default;
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void NGSPICE::Init( const SPICE_SIMULATOR_SETTINGS* aSettings )
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{
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Command( "reset" );
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for( const std::string& command : GetSettingCommands() )
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{
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wxLogTrace( traceNgspice, "Sending Ngspice configuration command '%s'.", command );
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Command( command );
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}
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}
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std::vector<std::string> NGSPICE::AllVectors() const
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{
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LOCALE_IO c_locale; // ngspice works correctly only with C locale
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char* currentPlot = m_ngSpice_CurPlot();
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char** allVectors = m_ngSpice_AllVecs( currentPlot );
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int noOfVectors = 0;
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std::vector<std::string> retVal;
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if( allVectors != nullptr )
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{
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for( char** plot = allVectors; *plot != nullptr; plot++ )
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noOfVectors++;
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retVal.reserve( noOfVectors );
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for( int i = 0; i < noOfVectors; i++, allVectors++ )
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{
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std::string vec = *allVectors;
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retVal.push_back( vec );
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}
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}
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return retVal;
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}
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std::vector<COMPLEX> NGSPICE::GetPlot( const std::string& aName, int aMaxLen )
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{
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LOCALE_IO c_locale; // ngspice works correctly only with C locale
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std::vector<COMPLEX> data;
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vector_info* vi = m_ngGet_Vec_Info( (char*) aName.c_str() );
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if( vi )
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{
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int length = aMaxLen < 0 ? vi->v_length : std::min( aMaxLen, vi->v_length );
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data.reserve( length );
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if( vi->v_realdata )
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{
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for( int i = 0; i < length; i++ )
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data.emplace_back( vi->v_realdata[i], 0.0 );
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}
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else if( vi->v_compdata )
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{
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for( int i = 0; i < length; i++ )
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data.emplace_back( vi->v_compdata[i].cx_real, vi->v_compdata[i].cx_imag );
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}
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}
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return data;
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}
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std::vector<double> NGSPICE::GetRealPlot( const std::string& aName, int aMaxLen )
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{
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LOCALE_IO c_locale; // ngspice works correctly only with C locale
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std::vector<double> data;
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vector_info* vi = m_ngGet_Vec_Info( (char*) aName.c_str() );
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if( vi )
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{
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int length = aMaxLen < 0 ? vi->v_length : std::min( aMaxLen, vi->v_length );
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data.reserve( length );
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if( vi->v_realdata )
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{
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for( int i = 0; i < length; i++ )
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data.push_back( vi->v_realdata[i] );
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}
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else if( vi->v_compdata )
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{
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for( int i = 0; i < length; i++ )
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{
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wxASSERT( vi->v_compdata[i].cx_imag == 0.0 );
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data.push_back( vi->v_compdata[i].cx_real );
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}
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}
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}
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return data;
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}
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std::vector<double> NGSPICE::GetImagPlot( const std::string& aName, int aMaxLen )
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{
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LOCALE_IO c_locale; // ngspice works correctly only with C locale
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std::vector<double> data;
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vector_info* vi = m_ngGet_Vec_Info( (char*) aName.c_str() );
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if( vi )
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{
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int length = aMaxLen < 0 ? vi->v_length : std::min( aMaxLen, vi->v_length );
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data.reserve( length );
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if( vi->v_compdata )
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{
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for( int i = 0; i < length; i++ )
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data.push_back( vi->v_compdata[i].cx_imag );
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}
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}
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return data;
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}
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std::vector<double> NGSPICE::GetMagPlot( const std::string& aName, int aMaxLen )
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{
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LOCALE_IO c_locale; // ngspice works correctly only with C locale
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std::vector<double> data;
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vector_info* vi = m_ngGet_Vec_Info( (char*) aName.c_str() );
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if( vi )
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{
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int length = aMaxLen < 0 ? vi->v_length : std::min( aMaxLen, vi->v_length );
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data.reserve( length );
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if( vi->v_realdata )
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{
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for( int i = 0; i < length; i++ )
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data.push_back( vi->v_realdata[i] );
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}
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else if( vi->v_compdata )
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{
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for( int i = 0; i < length; i++ )
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data.push_back( hypot( vi->v_compdata[i].cx_real, vi->v_compdata[i].cx_imag ) );
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}
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}
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return data;
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}
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std::vector<double> NGSPICE::GetPhasePlot( const std::string& aName, int aMaxLen )
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{
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LOCALE_IO c_locale; // ngspice works correctly only with C locale
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std::vector<double> data;
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vector_info* vi = m_ngGet_Vec_Info( (char*) aName.c_str() );
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if( vi )
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{
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int length = aMaxLen < 0 ? vi->v_length : std::min( aMaxLen, vi->v_length );
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data.reserve( length );
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if( vi->v_realdata )
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{
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for( int i = 0; i < length; i++ )
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data.push_back( 0.0 ); // well, that's life
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}
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else if( vi->v_compdata )
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{
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for( int i = 0; i < length; i++ )
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data.push_back( atan2( vi->v_compdata[i].cx_imag, vi->v_compdata[i].cx_real ) );
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}
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}
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return data;
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}
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bool NGSPICE::Attach( const std::shared_ptr<SIMULATION_MODEL>& aModel, REPORTER& aReporter )
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{
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NGSPICE_CIRCUIT_MODEL* model = dynamic_cast<NGSPICE_CIRCUIT_MODEL*>( aModel.get() );
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STRING_FORMATTER formatter;
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if( model && model->GetNetlist( &formatter, aReporter ) )
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{
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SIMULATOR::Attach( aModel, aReporter );
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LoadNetlist( formatter.GetString() );
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return true;
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}
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else
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{
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SIMULATOR::Attach( nullptr, aReporter );
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return false;
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}
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}
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bool NGSPICE::LoadNetlist( const std::string& aNetlist )
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{
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LOCALE_IO c_locale; // ngspice works correctly only with C locale
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std::vector<char*> lines;
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std::stringstream ss( aNetlist );
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m_netlist = "";
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while( !ss.eof() )
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{
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char line[1024];
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ss.getline( line, sizeof( line ) );
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lines.push_back( strdup( line ) );
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m_netlist += std::string( line ) + std::string( "\n" );
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}
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lines.push_back( nullptr ); // sentinel, as requested in ngSpice_Circ description
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Command( "remcirc" );
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bool success = !m_ngSpice_Circ( lines.data() );
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for( char* line : lines )
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free( line );
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return success;
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}
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bool NGSPICE::Run()
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{
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LOCALE_IO toggle; // ngspice works correctly only with C locale
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return Command( "bg_run" ); // bg_* commands execute in a separate thread
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}
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bool NGSPICE::Stop()
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{
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LOCALE_IO c_locale; // ngspice works correctly only with C locale
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return Command( "bg_halt" ); // bg_* commands execute in a separate thread
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}
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bool NGSPICE::IsRunning()
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{
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// No need to use C locale here
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return m_ngSpice_Running();
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}
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bool NGSPICE::Command( const std::string& aCmd )
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{
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LOCALE_IO c_locale; // ngspice works correctly only with C locale
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validate();
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return !m_ngSpice_Command( (char*) aCmd.c_str() );
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}
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wxString NGSPICE::GetXAxis( SIM_TYPE aType ) const
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{
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switch( aType )
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{
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case ST_AC:
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case ST_S_PARAM:
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return wxS( "frequency" );
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case ST_NOISE:
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return wxS( "noise1.frequency" );
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case ST_DC:
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// find plot, which ends with "-sweep"
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for( wxString vector : AllVectors() )
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{
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if( vector.Lower().EndsWith( wxS( "-sweep" ) ) )
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return vector;
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}
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return wxS( "sweep" );
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case ST_TRANSIENT:
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return wxS( "time" );
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default:
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return wxEmptyString;
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}
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}
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std::vector<std::string> NGSPICE::GetSettingCommands() const
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{
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const NGSPICE_SIMULATOR_SETTINGS* settings =
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dynamic_cast<const NGSPICE_SIMULATOR_SETTINGS*>( Settings().get() );
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std::vector<std::string> commands;
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wxCHECK( settings, commands );
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switch( settings->GetModelMode() )
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{
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case NGSPICE_MODEL_MODE::USER_CONFIG:
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break;
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case NGSPICE_MODEL_MODE::NGSPICE:
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commands.emplace_back( "unset ngbehavior" );
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break;
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case NGSPICE_MODEL_MODE::PSPICE:
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commands.emplace_back( "set ngbehavior=psa" );
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break;
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case NGSPICE_MODEL_MODE::LTSPICE:
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commands.emplace_back( "set ngbehavior=lta" );
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break;
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case NGSPICE_MODEL_MODE::LT_PSPICE:
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commands.emplace_back( "set ngbehavior=ltpsa" );
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break;
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case NGSPICE_MODEL_MODE::HSPICE:
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commands.emplace_back( "set ngbehavior=hsa" );
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break;
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default:
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wxFAIL_MSG( wxString::Format( "Undefined NGSPICE_MODEL_MODE %d.",
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settings->GetModelMode() ) );
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break;
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}
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return commands;
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}
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const std::string NGSPICE::GetNetlist() const
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{
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return m_netlist;
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}
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void NGSPICE::init_dll()
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{
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if( m_initialized )
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return;
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LOCALE_IO c_locale; // ngspice works correctly only with C locale
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const wxStandardPaths& stdPaths = wxStandardPaths::Get();
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if( m_dll.IsLoaded() ) // enable force reload
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m_dll.Unload();
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// Extra effort to find libngspice
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// @todo Shouldn't we be using the normal KiCad path searching mechanism here?
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wxFileName dllFile( "", NGSPICE_DLL_FILE );
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#if defined(__WINDOWS__)
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#if defined( _MSC_VER )
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const std::vector<std::string> dllPaths = { "" };
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#else
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const std::vector<std::string> dllPaths = { "", "/mingw64/bin", "/mingw32/bin" };
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#endif
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#elif defined(__WXMAC__)
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const std::vector<std::string> dllPaths = {
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PATHS::GetOSXKicadUserDataDir().ToStdString() + "/PlugIns/ngspice",
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PATHS::GetOSXKicadMachineDataDir().ToStdString() + "/PlugIns/ngspice",
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// when running kicad.app
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stdPaths.GetPluginsDir().ToStdString() + "/sim",
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// when running eeschema.app
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wxFileName( stdPaths.GetExecutablePath() ).GetPath().ToStdString() +
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"/../../../../../Contents/PlugIns/sim"
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};
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#else // Unix systems
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const std::vector<std::string> dllPaths = { "/usr/local/lib" };
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#endif
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#if defined(__WINDOWS__) || (__WXMAC__)
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for( const auto& path : dllPaths )
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{
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dllFile.SetPath( path );
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wxLogTrace( traceNgspice, "libngspice search path: %s", dllFile.GetFullPath() );
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m_dll.Load( dllFile.GetFullPath(), wxDL_VERBATIM | wxDL_QUIET | wxDL_NOW );
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if( m_dll.IsLoaded() )
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{
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wxLogTrace( traceNgspice, "libngspice path found in: %s", dllFile.GetFullPath() );
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break;
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}
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}
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if( !m_dll.IsLoaded() ) // try also the system libraries
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m_dll.Load( wxDynamicLibrary::CanonicalizeName( "ngspice" ) );
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#else
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// First, try the system libraries
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m_dll.Load( NGSPICE_DLL_FILE, wxDL_VERBATIM | wxDL_QUIET | wxDL_NOW );
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// If failed, try some other paths:
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if( !m_dll.IsLoaded() )
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{
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for( const auto& path : dllPaths )
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{
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dllFile.SetPath( path );
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wxLogTrace( traceNgspice, "libngspice search path: %s", dllFile.GetFullPath() );
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m_dll.Load( dllFile.GetFullPath(), wxDL_VERBATIM | wxDL_QUIET | wxDL_NOW );
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if( m_dll.IsLoaded() )
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{
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wxLogTrace( traceNgspice, "libngspice path found in: %s", dllFile.GetFullPath() );
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break;
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}
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}
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}
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#endif
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if( !m_dll.IsLoaded() )
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throw std::runtime_error( "Missing ngspice shared library" );
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m_error = false;
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// Obtain function pointers
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m_ngSpice_Init = (ngSpice_Init) m_dll.GetSymbol( "ngSpice_Init" );
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m_ngSpice_Circ = (ngSpice_Circ) m_dll.GetSymbol( "ngSpice_Circ" );
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m_ngSpice_Command = (ngSpice_Command) m_dll.GetSymbol( "ngSpice_Command" );
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m_ngGet_Vec_Info = (ngGet_Vec_Info) m_dll.GetSymbol( "ngGet_Vec_Info" );
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m_ngSpice_CurPlot = (ngSpice_CurPlot) m_dll.GetSymbol( "ngSpice_CurPlot" );
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m_ngSpice_AllPlots = (ngSpice_AllPlots) m_dll.GetSymbol( "ngSpice_AllPlots" );
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m_ngSpice_AllVecs = (ngSpice_AllVecs) m_dll.GetSymbol( "ngSpice_AllVecs" );
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m_ngSpice_Running = (ngSpice_Running) m_dll.GetSymbol( "ngSpice_running" ); // it is not a typo
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m_ngSpice_Init( &cbSendChar, &cbSendStat, &cbControlledExit, nullptr, nullptr,
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&cbBGThreadRunning, this );
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// Load a custom spinit file, to fix the problem with loading .cm files
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// Switch to the executable directory, so the relative paths are correct
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wxString cwd( wxGetCwd() );
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wxFileName exeDir( stdPaths.GetExecutablePath() );
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wxSetWorkingDirectory( exeDir.GetPath() );
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// Find *.cm files
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std::string cmPath = findCmPath();
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// __CMPATH is used in custom spinit file to point to the codemodels directory
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if( !cmPath.empty() )
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Command( "set __CMPATH=\"" + cmPath + "\"" );
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// Possible relative locations for spinit file
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const std::vector<std::string> spiceinitPaths =
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{
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".",
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#ifdef __WXMAC__
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stdPaths.GetPluginsDir().ToStdString() + "/sim/ngspice/scripts",
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wxFileName( stdPaths.GetExecutablePath() ).GetPath().ToStdString() +
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"/../../../../../Contents/PlugIns/sim/ngspice/scripts"
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|
#endif
|
|
"../share/kicad",
|
|
"../share",
|
|
"../../share/kicad",
|
|
"../../share"
|
|
};
|
|
|
|
bool foundSpiceinit = false;
|
|
|
|
for( const auto& path : spiceinitPaths )
|
|
{
|
|
wxLogTrace( traceNgspice, "ngspice init script search path: %s", path );
|
|
|
|
if( loadSpinit( path + "/spiceinit" ) )
|
|
{
|
|
wxLogTrace( traceNgspice, "ngspice path found in: %s", path );
|
|
foundSpiceinit = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Last chance to load codemodel files, we have not found
|
|
// spiceinit file, but we know the path to *.cm files
|
|
if( !foundSpiceinit && !cmPath.empty() )
|
|
loadCodemodels( cmPath );
|
|
|
|
// Restore the working directory
|
|
wxSetWorkingDirectory( cwd );
|
|
|
|
// Workarounds to avoid hang ups on certain errors
|
|
// These commands have to be called, no matter what is in the spinit file
|
|
// We have to allow interactive for user-defined signals. Hopefully whatever bug this was
|
|
// meant to address has gone away in the last 5 years...
|
|
//Command( "unset interactive" );
|
|
Command( "set noaskquit" );
|
|
Command( "set nomoremode" );
|
|
|
|
// reset and remcirc give an error if no circuit is loaded, so load an empty circuit at the
|
|
// start.
|
|
|
|
std::vector<char*> lines;
|
|
lines.push_back( strdup( "*" ) );
|
|
lines.push_back( strdup( ".end" ) );
|
|
lines.push_back( nullptr ); // Sentinel.
|
|
|
|
m_ngSpice_Circ( lines.data() );
|
|
|
|
for( auto line : lines )
|
|
free( line );
|
|
|
|
m_initialized = true;
|
|
}
|
|
|
|
|
|
bool NGSPICE::loadSpinit( const std::string& aFileName )
|
|
{
|
|
if( !wxFileName::FileExists( aFileName ) )
|
|
return false;
|
|
|
|
wxTextFile file;
|
|
|
|
if( !file.Open( aFileName ) )
|
|
return false;
|
|
|
|
for( wxString& cmd = file.GetFirstLine(); !file.Eof(); cmd = file.GetNextLine() )
|
|
Command( cmd.ToStdString() );
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
std::string NGSPICE::findCmPath() const
|
|
{
|
|
const std::vector<std::string> cmPaths =
|
|
{
|
|
#ifdef __WXMAC__
|
|
"/Applications/ngspice/lib/ngspice",
|
|
"Contents/Frameworks",
|
|
wxStandardPaths::Get().GetPluginsDir().ToStdString() + "/sim/ngspice",
|
|
wxFileName( wxStandardPaths::Get().GetExecutablePath() ).GetPath().ToStdString() +
|
|
"/../../../../../Contents/PlugIns/sim/ngspice",
|
|
"../Plugins/sim/ngspice",
|
|
#endif
|
|
"../lib/ngspice",
|
|
"../../lib/ngspice",
|
|
"lib/ngspice",
|
|
"ngspice"
|
|
};
|
|
|
|
for( const auto& path : cmPaths )
|
|
{
|
|
wxLogTrace( traceNgspice, "ngspice code models search path: %s", path );
|
|
|
|
if( wxFileName::FileExists( path + "/spice2poly.cm" ) )
|
|
{
|
|
wxLogTrace( traceNgspice, "ngspice code models found in: %s", path );
|
|
return path;
|
|
}
|
|
}
|
|
|
|
return std::string();
|
|
}
|
|
|
|
|
|
bool NGSPICE::loadCodemodels( const std::string& aPath )
|
|
{
|
|
wxArrayString cmFiles;
|
|
size_t count = wxDir::GetAllFiles( aPath, &cmFiles );
|
|
|
|
for( const auto& cm : cmFiles )
|
|
Command( fmt::format( "codemodel '{}'", cm.ToStdString() ) );
|
|
|
|
return count != 0;
|
|
}
|
|
|
|
|
|
int NGSPICE::cbSendChar( char* aWhat, int aId, void* aUser )
|
|
{
|
|
NGSPICE* sim = reinterpret_cast<NGSPICE*>( aUser );
|
|
|
|
if( sim->m_reporter )
|
|
{
|
|
// strip stdout/stderr from the line
|
|
if( ( strncasecmp( aWhat, "stdout ", 7 ) == 0 )
|
|
|| ( strncasecmp( aWhat, "stderr ", 7 ) == 0 ) )
|
|
{
|
|
aWhat += 7;
|
|
}
|
|
|
|
sim->m_reporter->Report( aWhat );
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int NGSPICE::cbSendStat( char *aWhat, int aId, void* aUser )
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
|
|
int NGSPICE::cbBGThreadRunning( NG_BOOL aFinished, int aId, void* aUser )
|
|
{
|
|
NGSPICE* sim = reinterpret_cast<NGSPICE*>( aUser );
|
|
|
|
if( sim->m_reporter )
|
|
sim->m_reporter->OnSimStateChange( sim, aFinished ? SIM_IDLE : SIM_RUNNING );
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int NGSPICE::cbControlledExit( int aStatus, NG_BOOL aImmediate, NG_BOOL aExitOnQuit, int aId,
|
|
void* aUser )
|
|
{
|
|
// Something went wrong, reload the dll
|
|
NGSPICE* sim = reinterpret_cast<NGSPICE*>( aUser );
|
|
sim->m_error = true;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
void NGSPICE::validate()
|
|
{
|
|
if( m_error )
|
|
{
|
|
m_initialized = false;
|
|
init_dll();
|
|
}
|
|
}
|
|
|
|
|
|
void NGSPICE::Clean()
|
|
{
|
|
Command( "destroy all" );
|
|
}
|
|
|
|
|
|
bool NGSPICE::m_initialized = false;
|