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#ifndef CYGONCE_HAL_HAL_DIAG_H

#define CYGONCE_HAL_HAL_DIAG_H

/*=============================================================================

//

//      hal_diag.h

//

//      HAL Support for Kernel Diagnostic Routines

//

//=============================================================================

//####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):   hmt

// Contributors:        hmt

// Date:        1999-01-11

// Purpose:     HAL Support for Kernel Diagnostic Routines

// Description: Diagnostic routines for use during kernel development.

// Usage:       #include <cyg/hal/hal_diag.h>

//

//####DESCRIPTIONEND####

//

//===========================================================================*/

#include <pkgconf/hal.h>

#include <cyg/infra/cyg_type.h>

/*---------------------------------------------------------------------------*/

#define CYG_DIAG_USE_ERC32

/*---------------------------------------------------------------------------*/

#ifdef  CYG_DIAG_USE_ERC32

/*---------------------------------------------------------------------------*/

/* Register addresses                                                        */

#define SPARC_MEC_UART              (0x01f800e0)

/* These must be accessed word-wide to work! */

#define SPARC_MEC_UART_IO( x )      ((cyg_uint32)(x))

#define SPARC_MEC_UART_A_RX         ((volatile cyg_uint32 *)(SPARC_MEC_UART + 0))

#define SPARC_MEC_UART_A_TX         ((volatile cyg_uint32 *)(SPARC_MEC_UART + 0))

#define SPARC_MEC_UART_B_RX         ((volatile cyg_uint32 *)(SPARC_MEC_UART + 4))

#define SPARC_MEC_UART_B_TX         ((volatile cyg_uint32 *)(SPARC_MEC_UART + 4))

#define SPARC_MEC_UART_STATUS       ((volatile cyg_uint32 *)(SPARC_MEC_UART + 8))

#define SPARC_MEC_UART_TXAMASK      (0x00004)

#define SPARC_MEC_UART_TXBMASK      (0x40000)

#define SPARC_MEC_UART_RXAMASK      (0x00001)

#define SPARC_MEC_UART_RXBMASK      (0x10000)

/*---------------------------------------------------------------------------*/

#define HAL_DIAG_INIT()

#define HAL_DIAG_WRITE_CHAR(_c_)                                            \

{                                                                           \

    if( 1 || _c_ != '\r' )                                                  \

    {                                                                       \

        while( (SPARC_MEC_UART_TXAMASK & *SPARC_MEC_UART_STATUS) == 0 )     \

            continue;                                                       \

        *SPARC_MEC_UART_A_TX = SPARC_MEC_UART_IO(_c_);                      \

    }                                                                       \

}

#define HAL_DIAG_READ_CHAR(_c_)                                             \

{                                                                           \

    while( (SPARC_MEC_UART_RXAMASK & *SPARC_MEC_UART_STATUS) == 0 )         \

            continue;                                                       \

    _c_ = (char)*SPARC_MEC_UART_A_TX;                                       \

}

#define XHAL_DIAG_WRITE_CHAR(_c_)                                            \

{                                                                           \

    if( _c_ != '\r' )                                                       \

    {                                                                       \

        *SPARC_MEC_UART_A_TX = SPARC_MEC_UART_IO(_c_);                      \

    }                                                                       \

}

#define XHAL_DIAG_READ_CHAR(_c_)                                             \

{                                                                           \

    _c_ = (char)*SPARC_MEC_UART_A_TX;                                       \

}

#else

/*---------------------------------------------------------------------------*/

/* There is no diagnostic output on SPARC simulator                      */

#define HAL_DIAG_INIT()

#define HAL_DIAG_WRITE_CHAR(_c_)

#define HAL_DIAG_READ_CHAR(_c_) (_c_) = 0

#endif

/*---------------------------------------------------------------------------*/

/* end of hal_diag.h                                                         */

#endif /* CYGONCE_HAL_HAL_DIAG_H */