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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 Red Hat, 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.,

// 59 Temple Place, Suite 330, Boston, MA 02111-1307 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.

//

// This exception does not invalidate any other reasons why a work based on

// this file might be covered by the GNU General Public License.

//

// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.

// at http://sources.redhat.com/ecos/ecos-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