ngspice.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2016 CERN
 * Copyright (C) 2021 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * @author Tomasz Wlostowski <[email protected]>
 *
 * 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
 */

#ifndef NGSPICE_H
#define NGSPICE_H

#include "spice_simulator.h"

#include <wx/dynlib.h>
#include <ngspice/sharedspice.h>

// We have an issue here where NGSPICE incorrectly used bool for years
// and defined it to be int when in C-mode. We cannot adjust the function
// signatures without re-writing sharedspice.h for KiCad.
// Instead, we maintain status-quo for older NGSPICE versions (<=34) and
// use the new signatures for newer versions
#ifndef NGSPICE_PACKAGE_VERSION
 typedef bool NG_BOOL;
#endif

class wxDynamicLibrary;

class NGSPICE : public SPICE_SIMULATOR
{
public:
 NGSPICE();
 virtual ~NGSPICE();

 void Init( const SPICE_SIMULATOR_SETTINGS* aSettings = nullptr ) override;

 bool LoadNetlist( const std::string& aNetlist ) override;

 bool Run() override;

 bool Stop() override;

 bool IsRunning() override;

 bool Command( const std::string& aCmd ) override;

 std::string GetXAxis( SIM_TYPE aType ) const override;

 std::vector<std::string> AllPlots() const override;

 std::vector<COMPLEX> GetPlot( const std::string& aName, int aMaxLen = -1 ) override;

 std::vector<double> GetRealPlot( const std::string& aName, int aMaxLen = -1 ) override;

 std::vector<double> GetImagPlot( const std::string& aName, int aMaxLen = -1 ) override;

 std::vector<double> GetMagPlot( const std::string& aName, int aMaxLen = -1 ) override;

 std::vector<double> GetPhasePlot( const std::string& aName, int aMaxLen = -1 ) override;

 std::vector<std::string> GetSettingCommands() const override;

 virtual const std::string GetNetlist() const override;

private:
 void init();

 // Performs DLL initialization, obtains function pointers
 void init_dll();

 // ngspice library functions
 typedef void ( *ngSpice_Init )( SendChar*, SendStat*, ControlledExit*, SendData*, SendInitData*,
 BGThreadRunning*, void* );
 typedef int ( *ngSpice_Circ )( char** circarray );
 typedef int ( *ngSpice_Command )( char* command );
 typedef pvector_info ( *ngGet_Vec_Info )( char* vecname );
 typedef char* ( *ngSpice_CurPlot )( void );
 typedef char** ( *ngSpice_AllPlots )( void );
 typedef char** ( *ngSpice_AllVecs )( char* plotname );
 typedef bool ( *ngSpice_Running )( void );

 ngSpice_Init m_ngSpice_Init;
 ngSpice_Circ m_ngSpice_Circ;
 ngSpice_Command m_ngSpice_Command;
 ngGet_Vec_Info m_ngGet_Vec_Info;
 ngSpice_CurPlot m_ngSpice_CurPlot;
 ngSpice_AllPlots m_ngSpice_AllPlots;
 ngSpice_AllVecs m_ngSpice_AllVecs;
 ngSpice_Running m_ngSpice_Running;

 wxDynamicLibrary m_dll;


 bool loadSpinit( const std::string& aFileName );

 std::string findCmPath() const;

 bool loadCodemodels( const std::string& aPath );

 // Callback functions
 static int cbSendChar( char* what, int aId, void* aUser );
 static int cbSendStat( char* what, int aId, void* aUser );
 static int cbBGThreadRunning( NG_BOOL aFinished, int aId, void* aUser );
 static int cbControlledExit( int aStatus, NG_BOOL aImmediate, NG_BOOL aExitOnQuit, int aId,
 void* aUser );

 // Assure ngspice is in a valid state and reinitializes it if need be.
 void validate();

 bool m_error;

 static bool m_initialized;

 std::string m_netlist;
};

#endif /* NGSPICE_H */