kicad/eeschema/sim/spice_generator.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2022 Mikolaj Wielgus
* Copyright (C) 2022 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/spice_generator.h>
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#include <boost/algorithm/string/predicate.hpp>
#include <boost/algorithm/string/trim.hpp>
#include <fmt/core.h>
std::string SPICE_GENERATOR::ModelName( const SPICE_ITEM& aItem ) const
{
if( aItem.baseModelName == "" )
return fmt::format( "__{}", aItem.refName );
// FIXME: This ModelLine() call is relatively expensive.
if( ModelLine( aItem ) != "" )
return fmt::format( "{}.{}", aItem.refName, aItem.baseModelName );
return aItem.baseModelName;
}
std::string SPICE_GENERATOR::ModelLine( const SPICE_ITEM& aItem ) const
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{
if( !m_model.HasSpiceNonInstanceOverrides() && !m_model.requiresSpiceModelLine() )
return "";
std::string result;
result.append( fmt::format( ".model {} ", aItem.modelName ) );
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size_t indentLength = result.length();
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result.append( fmt::format( "{}\n", m_model.GetSpiceInfo().modelType ) );
for( const SIM_MODEL::PARAM& param : m_model.GetParams() )
{
if( param.info.isSpiceInstanceParam )
continue;
std::string name;
std::string value;
if( !param.info.spiceModelName.empty() )
{
name = param.info.spiceModelName;
}
else
{
// Because of collisions with instance parameters, we append some model parameters
// with "_".
if( boost::ends_with( param.info.name, "_" ) )
name = name.substr( 0, param.info.name.length() - 1 );
else
name = param.info.name;
}
value = param.value->ToSpiceString();
if( value == "" )
continue;
result.append( fmt::format( "+{}{}={}\n",
std::string( indentLength - 1, ' ' ),
name,
value ) );
}
return result;
}
std::string SPICE_GENERATOR::ItemLine( const SPICE_ITEM& aItem ) const
{
SPICE_ITEM item = aItem;
if( item.pinNumbers.empty() )
{
for( int i = 0; i < m_model.GetPinCount(); ++i )
item.pinNumbers.push_back( fmt::format( "{}", i + 1 ) );
}
if( item.pinNetNames.empty() )
{
for( const SIM_MODEL::PIN& pin : GetPins() )
item.pinNetNames.push_back( pin.name );
}
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std::string result;
result.append( ItemName( aItem ) );
result.append( ItemPins( aItem ) );
result.append( ItemModelName( aItem ) );
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result.append( ItemParams() );
result.append( "\n" );
return result;
}
std::string SPICE_GENERATOR::ItemName( const SPICE_ITEM& aItem ) const
{
if( aItem.refName != "" && boost::starts_with( aItem.refName, m_model.GetSpiceInfo().itemType ) )
return aItem.refName;
else
return fmt::format( "{}{}", m_model.GetSpiceInfo().itemType, aItem.refName );
}
std::string SPICE_GENERATOR::ItemPins( const SPICE_ITEM& aItem ) const
{
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std::string result;
int ncCounter = 0;
for( const SIM_MODEL::PIN& pin : GetPins() )
{
auto it = std::find( aItem.pinNumbers.begin(), aItem.pinNumbers.end(),
pin.symbolPinNumber );
if( it == aItem.pinNumbers.end() )
result.append( fmt::format( " NC-{}-{}", aItem.refName, ncCounter++ ) );
else
{
long symbolPinIndex = std::distance( aItem.pinNumbers.begin(), it );
result.append( fmt::format( " {}", aItem.pinNetNames.at( symbolPinIndex ) ) );
}
}
return result;
}
std::string SPICE_GENERATOR::ItemModelName( const SPICE_ITEM& aItem ) const
{
return fmt::format( " {}", aItem.modelName );
}
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std::string SPICE_GENERATOR::ItemParams() const
{
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std::string result;
for( const SIM_MODEL::PARAM& param : GetInstanceParams() )
{
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std::string name = ( param.info.spiceInstanceName == "" ) ?
param.info.name : param.info.spiceInstanceName;
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std::string value = param.value->ToSpiceString();
if( value != "" )
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result.append( fmt::format( " {}={}", name, value ) );
}
return result;
}
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std::string SPICE_GENERATOR::TunerCommand( const SPICE_ITEM& aItem,
const SIM_VALUE_FLOAT& aValue ) const
{
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// No tuning available by default.
return "";
}
std::vector<std::string> SPICE_GENERATOR::CurrentNames( const SPICE_ITEM& aItem ) const
{
return { fmt::format( "I({})", ItemName( aItem ) ) };
}
std::string SPICE_GENERATOR::Preview( const SPICE_ITEM& aItem ) const
{
std::string spiceCode = ModelLine( aItem );
std::string itemLine = ItemLine( aItem );
if( spiceCode != "" )
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spiceCode.append( "\n" );
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spiceCode.append( itemLine );
return boost::trim_copy( spiceCode );
}
std::vector<std::reference_wrapper<const SIM_MODEL::PARAM>> SPICE_GENERATOR::GetInstanceParams() const
{
std::vector<std::reference_wrapper<const SIM_MODEL::PARAM>> instanceParams;
for( const SIM_MODEL::PARAM& param : m_model.GetParams() )
{
if( param.info.isSpiceInstanceParam )
instanceParams.emplace_back( param );
}
return instanceParams;
}