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#ifndef CYGONCE_PLF_IO_H
#define CYGONCE_PLF_IO_H
 
//=============================================================================
//
//      plf_io.h
//
//      Platform specific IO support
//
//=============================================================================
// ####ECOSGPLCOPYRIGHTBEGIN####                                            
// -------------------------------------------                              
// This file is part of eCos, the Embedded Configurable Operating System.   
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
//
// eCos 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 or (at your option) any later      
// version.                                                                 
//
// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,    
// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.            
//
// As a special exception, if other files instantiate templates or use      
// macros or inline functions from this file, or you compile this file      
// and link it with other works to produce a work based on this file,       
// this file does not by itself cause the resulting work to be covered by   
// the GNU General Public License. However the source code for this file    
// must still be made available in accordance with section (3) of the GNU   
// General Public License v2.                                               
//
// This exception does not invalidate any other reasons why a work based    
// on this file might be covered by the GNU General Public License.         
// -------------------------------------------                              
// ####ECOSGPLCOPYRIGHTEND####                                              
//=============================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):    msalter
// Contributors: msalter
// Date:         2001-02-12
// Purpose:      CalmRISC32 platform IO support
// Description: 
// Usage:        #include <cyg/hal/plf_io.h>
//
//####DESCRIPTIONEND####
//
//=============================================================================
 
#include <pkgconf/hal.h>
#include <cyg/hal/hal_misc.h>
 
// coprocessor regs
#define HAL_COP_SR_RBR 0x1c
#define HAL_COP_SR_TBR 0x1d
#define HAL_COP_TBR    0x1e
#define HAL_COP_RBR    0x1f
 
#ifndef __ASSEMBLER__
 
static inline void cyg_hal_plf_write_sr_rbr(int val)
{
    asm volatile ("cld fr28,%0\n" : : "r"(val));
}
 
static inline void cyg_hal_plf_write_sr_tbr(int val)
{
    asm volatile ("cld fr29,%0\n" : : "r"(val));
}
 
static inline void cyg_hal_plf_write_tbr(int val)
{
    asm volatile ("cld fr30,%0\n" : : "r"(val));
}
 
static inline void cyg_hal_plf_write_rbr(int val)
{
    asm volatile ("cld fr31,%0\n" : : "r"(val));
}
 
static inline int cyg_hal_plf_read_sr_rbr(void)
{
    int val;
 
    asm volatile ("cld %0,fr28\n" : "=r"(val) : );
    return val;
}
 
static inline int cyg_hal_plf_read_sr_tbr(void)
{
    int val;
 
    asm volatile ("cld %0,fr29\n" : "=r"(val) : );
    return val;
}
 
static inline int cyg_hal_plf_read_tbr(void)
{
    int val;
 
    asm volatile ("cld %0,fr30\n" : "=r"(val) : );
    return val;
}
 
static inline int cyg_hal_plf_read_rbr(void)
{
    int val;
 
    asm volatile ("cld %0,fr31\n" : "=r"(val) : );
    return val;
}
#endif
 
//-----------------------------------------------------------------------------
// end of plf_io.h
#endif // CYGONCE_PLF_IO_H