SFBProcessor.h

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/*                                              -*- mode:C++; fill-column:100 -*-
  SFBProcessor.h CPU speed setting and control routines for the SFB.
  Copyright (C) 2010 The Regents of the University of New Mexico.  All rights reserved.

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library 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
  Lesser General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this library; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
  USA

  $Id$
*/

#ifndef SFBPROCESSOR_H
#define SFBPROCESSOR_H

#include "SFBTypes.h"     /* For u8 */
#include "lpc/clock.h"    /* For CSC_12MHZ, etc */

class SFBProcessor {
public:

  void setMaxSpeed() { setCode(CSC_MAX_MHZ); }

  void setMinSpeed() { setCode(CSC_MIN_MHZ); }

  u32 getMHzMin() { return 12*getCodeMin(); }

  u32 getCodeMin() { return CSC_MIN_MHZ; }

  u32 getMHzMax() { return 12*getCodeMax(); }

  u32 getCodeMax() { return CSC_MAX_MHZ; }

  u32 getHz() { return getMHz()*1000000; }

  u32 getMHz() { return getCode()*12; }

  u32 getCode() ;

  void setHz(u32 hz) { setMHz(hz/1000000); }

  void setMHz(u32 mhz) { setCode(mhz/12); }

  void setCode(u32 code);

};

typedef void (*SpeedChangeHandler)();
struct SpeedChangeHandlerBlock {
  SpeedChangeHandler handler;
  SpeedChangeHandlerBlock * next;
};

extern void registerSpeedChangeHandlerBlock(SpeedChangeHandlerBlock *); // Defined in startup.cpp!

extern SFBProcessor Processor; 

#endif /* SFBPROCESSOR_H */