sim_model_ngspice.cpp

Go to the documentation of this file.

/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2022 Mikolaj Wielgus
 * Copyright (C) 2022-2023 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * 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; either 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you may find one here:
 * https://www.gnu.org/licenses/gpl-3.0.html
 * or you may search the http://www.gnu.org website for the version 3 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 */
 
#include <sim/sim_model_ngspice.h>
 
#include <boost/algorithm/string.hpp>
#include <fmt/core.h>
 
 
std::vector<std::string> SPICE_GENERATOR_NGSPICE::CurrentNames( const SPICE_ITEM& aItem ) const
{
 switch( m_model.GetTypeInfo().deviceType )
 {
 case SIM_MODEL::DEVICE_T::NPN:
 case SIM_MODEL::DEVICE_T::PNP:
 return { fmt::format( "I({}:c)", ItemName( aItem ) ),
 fmt::format( "I({}:b)", ItemName( aItem ) ),
 fmt::format( "I({}:e)", ItemName( aItem ) ) };
 
 case SIM_MODEL::DEVICE_T::NJFET:
 case SIM_MODEL::DEVICE_T::PJFET:
 case SIM_MODEL::DEVICE_T::NMES:
 case SIM_MODEL::DEVICE_T::PMES:
 case SIM_MODEL::DEVICE_T::NMOS:
 case SIM_MODEL::DEVICE_T::PMOS:
 return { fmt::format( "I({}:d)", ItemName( aItem ) ),
 fmt::format( "I({}:g)", ItemName( aItem ) ),
 fmt::format( "I({}:s)", ItemName( aItem ) ) };
 
 case SIM_MODEL::DEVICE_T::R:
 case SIM_MODEL::DEVICE_T::C:
 case SIM_MODEL::DEVICE_T::L:
 case SIM_MODEL::DEVICE_T::D:
 return SPICE_GENERATOR::CurrentNames( aItem );
 
 default:
 return {};
 }
}
 
 
SIM_MODEL_NGSPICE::SIM_MODEL_NGSPICE( TYPE aType ) :
 SIM_MODEL_SPICE( aType, std::make_unique<SPICE_GENERATOR_NGSPICE>( *this ) )
{
 const MODEL_INFO& modelInfo = ModelInfo( getModelType() );
 
 for( const SIM_MODEL::PARAM::INFO& paramInfo : modelInfo.instanceParams )
 {
 // For now, only the geometry and flags parameters.
 if( paramInfo.category == SIM_MODEL::PARAM::CATEGORY::PRINCIPAL
 || paramInfo.category == SIM_MODEL::PARAM::CATEGORY::GEOMETRY
 || paramInfo.category == SIM_MODEL::PARAM::CATEGORY::FLAGS )
 {
 AddParam( paramInfo );
 }
 }
 
 for( const SIM_MODEL::PARAM::INFO& paramInfo : modelInfo.modelParams )
 AddParam( paramInfo );
}
 
 
int SIM_MODEL_NGSPICE::doFindParam( const std::string& aParamName ) const
{
 for( int ii = 0; ii < (int) GetParamCount(); ++ii )
 {
 const PARAM& param = GetParam( ii );
 
 if( param.Matches( aParamName ) )
 return ii;
 }
 
 // Look for escaped param names as a second pass (as they're less common)
 for( int ii = 0; ii < (int) GetParamCount(); ++ii )
 {
 const PARAM& param = GetParam( ii );
 
 if( !param.info.name.ends_with( '_' ) )
 continue;
 
 if( param.Matches( aParamName + "_" ) )
 return ii;
 }
 
 return -1;
}
 
 
void SIM_MODEL_NGSPICE::SetParamFromSpiceCode( const std::string& aParamName,
 const std::string& aValue,
 SIM_VALUE_GRAMMAR::NOTATION aNotation )
{
 // "level" and "version" are not really parameters - they're part of the type - so silently
 // ignore them.
 if( boost::iequals( aParamName, "level" ) || boost::iequals( aParamName, "version" ) )
 return;
 
 // First we try to use the name as is. Note that you can't set instance parameters from this
 // function, it's for ".model" cards, not for instantiations.
 
 for( int ii = 0; ii < (int) GetParamCount(); ++ii )
 {
 const PARAM& param = GetParam( ii );
 
 if( param.info.isSpiceInstanceParam || param.info.category == PARAM::CATEGORY::SUPERFLUOUS )
 continue;
 
 if( param.Matches( aParamName ) )
 {
 SetParamValue( ii, aValue, aNotation );
 return;
 }
 }
 
 // Look for escaped param names as a second pass (as they're less common)
 for( int ii = 0; ii < (int) GetParamCount(); ++ii )
 {
 const PARAM& param = GetParam( ii );
 
 if( param.info.isSpiceInstanceParam || param.info.category == PARAM::CATEGORY::SUPERFLUOUS )
 continue;
 
 if( !param.info.name.ends_with( '_' ) )
 continue;
 
 if( param.Matches( aParamName + "_" ) )
 {
 SetParamValue( ii, aValue, aNotation );
 return;
 }
 }
 
 // One Spice param can have multiple names, we need to take this into account.
 
 // Now we search the base model parameters without excluding superfluous parameters (which
 // may be aliases to non-superfluous parameters).
 
 for( const PARAM::INFO& ngspiceParamInfo : ModelInfo( getModelType() ).modelParams )
 {
 if( ngspiceParamInfo.Matches( aParamName ) )
 {
 // Find an actual parameter with the same id. Even if the ngspiceParam was
 // superfluous, its alias target might not be.
 for( int ii = 0; ii < (int) GetParamCount(); ++ii )
 {
 const PARAM::INFO& paramInfo = GetParam( ii ).info;
 
 if( paramInfo.category == PARAM::CATEGORY::SUPERFLUOUS )
 continue;
 
 if( paramInfo.id == ngspiceParamInfo.id )
 {
 SetParamValue( ii, aValue, aNotation );
 return;
 }
 }
 
 break;
 }
 }
 
 if( !canSilentlyIgnoreParam( aParamName ) )
 THROW_IO_ERROR( wxString::Format( "Unknown simulation model parameter '%s'", aParamName ) );
}
 
 
bool SIM_MODEL_NGSPICE::canSilentlyIgnoreParam( const std::string& aParamName )
{
 // Ignore the purely informative LTspice-specific parameters "mfg" and "type".
 if( boost::iequals( aParamName, "mfg" ) || boost::iequals( aParamName, "type" ) )
 return true;
 
 if( GetDeviceType() == DEVICE_T::D )
 {
 if( boost::iequals( aParamName, "perim" )
 || boost::iequals( aParamName, "isw" )
 || boost::iequals( aParamName, "ns" )
 || boost::iequals( aParamName, "rsw" )
 || boost::iequals( aParamName, "cjsw" )
 || boost::iequals( aParamName, "vjsw" )
 || boost::iequals( aParamName, "mjsw" )
 || boost::iequals( aParamName, "fcs" ) )
 {
 return true;
 }
 }
 
 if( GetDeviceType() == DEVICE_T::NPN || GetDeviceType() == DEVICE_T::PNP )
 {
 // Ignore the purely informative LTspice-specific parameters "icrating" and "vceo".
 if( boost::iequals( aParamName, "icrating" ) || boost::iequals( aParamName, "vceo" ) )
 return true;
 }
 
 if( GetType() == TYPE::NPN_GUMMELPOON || GetType() == TYPE::PNP_GUMMELPOON )
 {
 // Ignore unused parameters.
 if( boost::iequals( aParamName, "bvcbo" )
 || boost::iequals( aParamName, "nbvcbo" )
 || boost::iequals( aParamName, "tbvcbo1" )
 || boost::iequals( aParamName, "tbvcbo2" )
 || boost::iequals( aParamName, "bvbe" )
 || boost::iequals( aParamName, "ibvbe" )
 || boost::iequals( aParamName, "nbvbe" ) )
 {
 return true;
 }
 }
 
 if( GetType() == TYPE::NMOS_VDMOS || GetType() == TYPE::PMOS_VDMOS )
 {
 // Ignore the purely informative LTspice-specific parameters "Vds", "Ron" and "Qg".
 if( boost::iequals( aParamName, "vds" )
 || boost::iequals( aParamName, "ron" )
 || boost::iequals( aParamName, "qg" ) )
 {
 return true;
 }
 }
 
 return false;
}
 
 
std::vector<std::string> SIM_MODEL_NGSPICE::GetPinNames() const
{
 return ModelInfo( getModelType() ).pinNames;
}
 
 
SIM_MODEL_NGSPICE::MODEL_TYPE SIM_MODEL_NGSPICE::getModelType() const
{
 switch( GetType() )
 {
 case TYPE::NONE: return MODEL_TYPE::NONE;
 case TYPE::D: return MODEL_TYPE::DIODE;
 
 case TYPE::NPN_VBIC:
 case TYPE::PNP_VBIC: return MODEL_TYPE::VBIC;
 case TYPE::NPN_GUMMELPOON:
 case TYPE::PNP_GUMMELPOON: return MODEL_TYPE::BJT;
 case TYPE::NPN_HICUM2:
 case TYPE::PNP_HICUM2: return MODEL_TYPE::HICUM2;
 
 case TYPE::NJFET_SHICHMANHODGES:
 case TYPE::PJFET_SHICHMANHODGES: return MODEL_TYPE::JFET;
 case TYPE::NJFET_PARKERSKELLERN:
 case TYPE::PJFET_PARKERSKELLERN: return MODEL_TYPE::JFET2;
 
 case TYPE::NMES_STATZ:
 case TYPE::PMES_STATZ: return MODEL_TYPE::MES;
 case TYPE::NMES_YTTERDAL:
 case TYPE::PMES_YTTERDAL: return MODEL_TYPE::MESA;
 case TYPE::NMES_HFET1:
 case TYPE::PMES_HFET1: return MODEL_TYPE::HFET1;
 case TYPE::NMES_HFET2:
 case TYPE::PMES_HFET2: return MODEL_TYPE::HFET2;
 
 case TYPE::NMOS_VDMOS:
 case TYPE::PMOS_VDMOS: return MODEL_TYPE::VDMOS;
 case TYPE::NMOS_MOS1:
 case TYPE::PMOS_MOS1: return MODEL_TYPE::MOS1;
 case TYPE::NMOS_MOS2:
 case TYPE::PMOS_MOS2: return MODEL_TYPE::MOS2;
 case TYPE::NMOS_MOS3:
 case TYPE::PMOS_MOS3: return MODEL_TYPE::MOS3;
 case TYPE::NMOS_BSIM1:
 case TYPE::PMOS_BSIM1: return MODEL_TYPE::BSIM1;
 case TYPE::NMOS_BSIM2:
 case TYPE::PMOS_BSIM2: return MODEL_TYPE::BSIM2;
 case TYPE::NMOS_MOS6:
 case TYPE::PMOS_MOS6: return MODEL_TYPE::MOS6;
 case TYPE::NMOS_BSIM3:
 case TYPE::PMOS_BSIM3: return MODEL_TYPE::BSIM3;
 case TYPE::NMOS_MOS9:
 case TYPE::PMOS_MOS9: return MODEL_TYPE::MOS9;
 case TYPE::NMOS_B4SOI:
 case TYPE::PMOS_B4SOI: return MODEL_TYPE::B4SOI;
 case TYPE::NMOS_BSIM4:
 case TYPE::PMOS_BSIM4: return MODEL_TYPE::BSIM4;
 case TYPE::NMOS_B3SOIFD:
 case TYPE::PMOS_B3SOIFD: return MODEL_TYPE::B3SOIFD;
 case TYPE::NMOS_B3SOIDD:
 case TYPE::PMOS_B3SOIDD: return MODEL_TYPE::B3SOIDD;
 case TYPE::NMOS_B3SOIPD:
 case TYPE::PMOS_B3SOIPD: return MODEL_TYPE::B3SOIPD;
 case TYPE::NMOS_HISIM2:
 case TYPE::PMOS_HISIM2: return MODEL_TYPE::HISIM2;
 case TYPE::NMOS_HISIMHV1:
 case TYPE::PMOS_HISIMHV1: return MODEL_TYPE::HISIMHV1;
 case TYPE::NMOS_HISIMHV2:
 case TYPE::PMOS_HISIMHV2: return MODEL_TYPE::HISIMHV2;
 
 default:
 wxFAIL_MSG( "Unhandled SIM_MODEL type in SIM_MODEL_NGSPICE" );
 return MODEL_TYPE::NONE;
 }
}
 
 
static std::unique_ptr<NGSPICE_MODEL_INFO_MAP> s_ModelInfoMap;
 
const SIM_MODEL_NGSPICE::MODEL_INFO& SIM_MODEL_NGSPICE::ModelInfo( MODEL_TYPE aType )
{
 if( !s_ModelInfoMap )
 s_ModelInfoMap = std::make_unique<NGSPICE_MODEL_INFO_MAP>();
 
 return s_ModelInfoMap->modelInfos.at( aType );
}
 
 
NGSPICE_MODEL_INFO_MAP::NGSPICE_MODEL_INFO_MAP()
{
 modelInfos[SIM_MODEL_NGSPICE::MODEL_TYPE::NONE] = {};
 addBJT();
 addBSIM1();
 addBSIM2();
 addBSIM3();
 addBSIM4();
 addB3SOI();
 addB4SOI();
 addDIODE();
 addHFET();
 addHICUM2();
 addHSIM();
 addJFET();
 addMES();
 addMOS();
 addMOS6();
 addMOS9();
 addVBIC();
}