ngspice.h

Go to the documentation of this file.

/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2016-2022 CERN
 * Copyright (C) 2021-2024 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 <sim/spice_simulator.h>
#include <sim/sim_model.h>
#include <sim/sim_value.h>
 
#include <wx/dynlib.h>
 
#include <ngspice/sharedspice.h>
 
#include <enum_vector.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_SETTINGS* aSettings = nullptr ) override final;
 
 bool Attach( const std::shared_ptr<SIMULATION_MODEL>& aModel, const wxString& aSimCommand,
 unsigned aSimOptions, const wxString& aInputPath,
 REPORTER& aReporter ) override final;
 
 bool LoadNetlist( const std::string& aNetlist ) override final;
 
 bool Run() override final;
 
 bool Stop() override final;
 
 bool IsRunning() override final;
 
 bool Command( const std::string& aCmd ) override final;
 
 wxString GetXAxis( SIM_TYPE aType ) const override final;
 
 wxString CurrentPlotName() const override final;
 
 std::vector<std::string> AllVectors() const override final;
 
 std::vector<COMPLEX> GetComplexVector( const std::string& aName, int aMaxLen = -1 ) override final;
 
 std::vector<double> GetRealVector( const std::string& aName, int aMaxLen = -1 ) override final;
 
 std::vector<double> GetImaginaryVector( const std::string& aName, int aMaxLen = -1 ) override final;
 
 std::vector<double> GetGainVector( const std::string& aName, int aMaxLen = -1 ) override final;
 
 std::vector<double> GetPhaseVector( const std::string& aName, int aMaxLen = -1 ) override final;
 
 std::vector<std::string> GetSettingCommands() const override final;
 
 virtual const std::string GetNetlist() const override final;
 
 void Clean() override final;
 
private:
 // 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* ( *ngCM_Input_Path )( const char* path );
 typedef char* ( *ngSpice_CurPlot )( void );
 typedef char** ( *ngSpice_AllPlots )( void );
 typedef char** ( *ngSpice_AllVecs )( char* plotname );
 typedef bool ( *ngSpice_Running )( void );
 typedef int ( *ngSpice_LockRealloc )( void );
 typedef int ( *ngSpice_UnlockRealloc )( void );
 
 ngSpice_Init m_ngSpice_Init;
 ngSpice_Circ m_ngSpice_Circ;
 ngSpice_Command m_ngSpice_Command;
 ngGet_Vec_Info m_ngGet_Vec_Info;
 ngCM_Input_Path m_ngCM_Input_Path;
 ngSpice_CurPlot m_ngSpice_CurPlot;
 ngSpice_AllPlots m_ngSpice_AllPlots;
 ngSpice_AllVecs m_ngSpice_AllVecs;
 ngSpice_Running m_ngSpice_Running;
 ngSpice_LockRealloc m_ngSpice_LockRealloc;
 ngSpice_UnlockRealloc m_ngSpice_UnlockRealloc;
 
 wxDynamicLibrary m_dll;
 
 class NGSPICE_LOCK_REALLOC
 {
 public:
 NGSPICE_LOCK_REALLOC( NGSPICE* ngspice ) :
 m_ngspice( ngspice )
 {
 if( m_ngspice->m_ngSpice_LockRealloc )
 m_ngspice->m_ngSpice_LockRealloc();
 };
 
 ~NGSPICE_LOCK_REALLOC()
 {
 if( m_ngspice->m_ngSpice_UnlockRealloc )
 m_ngspice->m_ngSpice_UnlockRealloc();
 };
 
 private:
 NGSPICE* m_ngspice;
 };
 
 bool loadSpinit( const std::string& aFileName );
 
 void updateNgspiceSettings();
 
 std::string findCmPath() const;
 
 bool setCodemodelsInputPath( const std::string& aPath );
 
 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();
 
private:
 bool m_error; 
 
 static bool m_initialized; 
 
 std::string m_netlist; 
};
 
#endif /* NGSPICE_H */