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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.

// Copyright (C) 2002 Gary Thomas

//

// 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):   nickg

// Contributors:nickg

// Date:        1998-03-02

// 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>

#ifndef CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT

// These should not need to be prototyped here, but where????

cyg_uint8

cyg_hal_plf_serial_getc(void);

#if 1

void

cyg_hal_plf_serial_putc(cyg_uint8 ch);

#else

void

cyg_hal_plf_serial_putc(void* __ch_data, cyg_uint8 ch);

#endif

#if 1

void

cyg_hal_plf_serial_init(void);

#else

void

cyg_hal_plf_serial_init_channel(void);

#endif

#endif //#ifdef CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT

#define LATER

#ifdef LATER

// See the #else clause at the end

#if defined(CYGSEM_HAL_VIRTUAL_VECTOR_DIAG)

#include <cyg/hal/hal_if.h>

#define HAL_DIAG_INIT() hal_if_diag_init()

#define HAL_DIAG_WRITE_CHAR(_c_) hal_if_diag_write_char(_c_)

#define HAL_DIAG_READ_CHAR(_c_) hal_if_diag_read_char(&_c_)

#else // everything by steam

//-----------------------------------------------------------------------------

// functions implemented in hal_diag.c

externC void hal_diag_init(void);

externC void hal_diag_write_char(char c);

externC void hal_diag_read_char(char *c);

//-----------------------------------------------------------------------------

#define HAL_DIAG_INIT() hal_diag_init()

#define HAL_DIAG_WRITE_CHAR(_c_) hal_diag_write_char(_c_)

#define HAL_DIAG_READ_CHAR(_c_) hal_diag_read_char(&_c_)

#endif // CYGSEM_HAL_VIRTUAL_VECTOR_DIAG

//-----------------------------------------------------------------------------

// end of hal_diag.h

#else

// Need to figure out what to do here at some point, for now, I just copied

// these from the simulator hal_diag.h

//-----------------------------------------------------------------------------

// Register addresses

#define PAL_RESET        0x00

#define PAL_CPU_NR       0x04

#define PAL_INT          0x08

#define PAL_NR_CPU       0x0a

#define PAL_READ_FIFO    0x10

#define PAL_READ_STATUS  0x14

#define PAL_WRITE_FIFO   0x18

#define PAL_WRITE_STATUS 0x1a

#define OEA_DEV          0xf0001000

//-----------------------------------------------------------------------------

#define HAL_DIAG_INIT()

// Added by WPD

#ifndef HAL_DISABLE_INTERRUPTS

#define HAL_DISABLE_INTERRUPTS

#define HAL_RESTORE_INTERRUPTS

#endif

#define HAL_DIAG_WRITE_CHAR(_c_)                        \

CYG_MACRO_START                                         \

    volatile unsigned char *tty_buffer =                \

        (unsigned char*)(OEA_DEV + PAL_WRITE_FIFO);     \

    volatile unsigned char *tty_status =                \

        (unsigned char*)(OEA_DEV + PAL_WRITE_STATUS);   \

    unsigned long __state;                              \

                                                        \

    HAL_DISABLE_INTERRUPTS(__state);                    \

    if( _c_ != '\r' )                                   \

    {                                                   \

        while( *tty_status == 0 ) continue;             \

        *tty_buffer = _c_;                              \

    }                                                   \

    HAL_RESTORE_INTERRUPTS(__state);                    \

CYG_MACRO_END

#define HAL_DIAG_READ_CHAR(_c_)                         \

CYG_MACRO_START                                         \

    volatile unsigned char *tty_buffer =                \

        (unsigned char*)(OEA_DEV + PAL_READ_FIFO);      \

    volatile unsigned char *tty_status =                \

        (unsigned char*)(OEA_DEV + PAL_READ_STATUS);    \

    while( *tty_status == 0 ) continue;                 \

    _c_ = *tty_buffer;                                  \

CYG_MACRO_END

#endif // LATER

#endif // CYGONCE_HAL_HAL_DIAG_H