# SFBProcessor.h

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    00001 /*                                              -*- mode:C++; fill-column:100 -*-
    00002   SFBProcessor.h CPU speed setting and control routines for the SFB.
    00003   Copyright (C) 2010 The Regents of the University of New Mexico.  All rights reserved.
    00004
    00005   This library is free software; you can redistribute it and/or
    00006   modify it under the terms of the GNU Lesser General Public
    00007   License as published by the Free Software Foundation; either
    00008   version 2.1 of the License, or (at your option) any later version.
    00009
    00010   This library is distributed in the hope that it will be useful,
    00011   but WITHOUT ANY WARRANTY; without even the implied warranty of
    00012   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00013   Lesser General Public License for more details.
    00014
    00015   You should have received a copy of the GNU General Public License
    00016   along with this library; if not, write to the Free Software
    00017   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
    00018   USA
    00019
    00020   $Id$
    00021 */
    00022
    00032 #ifndef SFBPROCESSOR_H
    00033 #define SFBPROCESSOR_H
    00034
    00035 #include "SFBTypes.h"     /* For u8 */
    00036 #include "lpc/clock.h"    /* For CSC_12MHZ, etc */
    00037
    00043 class SFBProcessor {
    00044 public:
    00045
    00049   void setMaxSpeed() { setCode(CSC_MAX_MHZ); }
    00050
    00054   void setMinSpeed() { setCode(CSC_MIN_MHZ); }
    00055
    00059   u32 getMHzMin() { return 12*getCodeMin(); }
    00060
    00064   u32 getCodeMin() { return CSC_MIN_MHZ; }
    00065
    00069   u32 getMHzMax() { return 12*getCodeMax(); }
    00070
    00074   u32 getCodeMax() { return CSC_MAX_MHZ; }
    00075
    00079   u32 getHz() { return getMHz()*1000000; }
    00080
    00084   u32 getMHz() { return getCode()*12; }
    00085
    00089   u32 getCode() ;
    00090
    00098   void setHz(u32 hz) { setMHz(hz/1000000); }
    00099
    00107   void setMHz(u32 mhz) { setCode(mhz/12); }
    00108
    00137   void setCode(u32 code);
    00138
    00139 };
    00140
    00141 typedef void (*SpeedChangeHandler)();
    00142 struct SpeedChangeHandlerBlock {
    00143   SpeedChangeHandler handler;
    00144   SpeedChangeHandlerBlock * next;
    00145 };
    00146
    00147 extern void registerSpeedChangeHandlerBlock(SpeedChangeHandlerBlock *); // Defined in startup.cpp!
    00148
    00153 extern SFBProcessor Processor;
    00154
    00155 #endif /* SFBPROCESSOR_H */