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/***************************************************************************
                          BaseRegisteritem.h  -  description
                             -------------------
    begin                : Fr May 6 2008
    copyright            : (C) 2008 by 
    email                : 
 ***************************************************************************/
 
/***************************************************************************
 *                                                                         *
 *   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 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef _HW4_BASEREGISTERITEM_H_INCLUDED
#define _HW4_BASEREGISTERITEM_H_INCLUDED




namespace hw4 {

class BaseRegister;
        
        
class BaseRegisterItem  {
public: 

  BaseRegisterItem(BaseRegister *reg, const char *name=0, unsigned long low=0, unsigned long len=32);
  
  BaseRegisterItem(BaseRegisterItem *group, const char *name, unsigned long low, unsigned long len);
  
  virtual ~BaseRegisterItem();

  virtual unsigned long read(int elem = 0);

  virtual void write(unsigned long data);

  virtual void write(int elem, unsigned long data);
  
  virtual unsigned long getCache(int elem = 0);

  virtual bool isEnabled(int elem = 0); 

  virtual bool isDisabled(int elem = 0); 
  
  virtual bool isActive(int elem = 0);

  virtual bool isInactive(int elem = 0);

  virtual void setCache(unsigned long data);

  virtual void setCache(int elem, unsigned long data);

  virtual unsigned long get(unsigned long data);

  const char *getName();

  BaseRegisterItem *getGroup();
  
  int getLowBit();

  int getLength();

  int getByteShift();

  unsigned long getMask();

private:

  const char *name;
  
  unsigned long low;
  
  unsigned long byteShift;
  
  unsigned long mask;

  unsigned long len;
  
  
  BaseRegister *reg;
  
  BaseRegisterItem *group;
};

} // namespace hw4

#endif // _HW4_BASEREGISTERITEM_H_INCLUDED