HSolveStruct.h

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/**********************************************************************
** This program is part of 'MOOSE', the
** Messaging Object Oriented Simulation Environment.
**   copyright (C) 2003-2007 Upinder S. Bhalla, Niraj Dudani and NCBS
** It is made available under the terms of the
** GNU Lesser General Public License version 2.1
** See the file COPYING.LIB for the full notice.
**********************************************************************/

#ifndef _HSOLVE_STRUCT_H
#define _HSOLVE_STRUCT_H

typedef double ( *PFDD )( double, double );

struct CompartmentStruct
{
    double CmByDt;
    double EmByRm;
};

struct InjectStruct
{
    InjectStruct()
        :
        injectVarying( 0.0 ),
        injectBasal( 0.0 )
    { ; }

    double injectVarying;
    double injectBasal;
};

struct CurrentStruct
{
    double Gk;
    double Ek;
};

struct ChannelStruct
{
public:
    double Gbar_;
    PFDD takeXpower_;       // Some clever method of actually applying the
    PFDD takeYpower_;       // power on the fraction of gates.
    PFDD takeZpower_;
    double Xpower_;         // Actual powers for each gate.
    double Ypower_;
    double Zpower_;

    int instant_;

    double modulation_;

    void setPowers( double Xpower, double Ypower, double Zpower );

    void process( double*& state, CurrentStruct& current );

private:
    static PFDD selectPower( double power );

    static double power1( double x, double p ) {
        return x;
    }
    static double power2( double x, double p ) {
        return x * x;
    }
    static double power3( double x, double p ) {
        return x * x * x;
    }
    static double power4( double x, double p ) {
        return power2( x * x, p );
    }
    static double powerN( double x, double p );
};

struct SpikeGenStruct
{
    SpikeGenStruct( double* Vm, Eref e )
        :
        Vm_( Vm ),
        e_( e )
    { ; }

    double* Vm_;
    Eref e_;

    void reinit( ProcPtr info );
    void send( ProcPtr info );
};

struct SynChanStruct
{
    // Index of parent compartment
    unsigned int compt_;
    Id elm_;
};

struct CaConcStruct
{
    double c_;          
    double CaBasal_;    
    double factor1_;    
    double factor2_;
    double ceiling_;    
    double floor_;

    CaConcStruct();
    CaConcStruct(
        double Ca,
        double CaBasal,
        double tau,
        double B,
        double ceiling,
        double floor,
        double dt );

    void setCa( double Ca );    // c_ = Ca - CaBasal_

    void setCaBasal( double CaBasal );

    void setTauB( double tau, double B, double dt );

    double process( double activation );
};

#endif // _HSOLVE_STRUCT_H