//==========================================================================
//
//      hal_diag.h
//
//      
//
//==========================================================================
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// -------------------------------------------                              
// 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    
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// version.                                                                 
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// for more details.                                                        
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//
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// ####ECOSGPLCOPYRIGHTEND####                                              
//==========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):    gthomas
// Contributors: gthomas, jskov
//               Grant Edwards <grante@visi.com>
// Date:         2001-07-31
// Purpose:      
// Description:  
//
//####DESCRIPTIONEND####
//
//========================================================================*/

#ifndef CYGONCE_HAL_DIAG_H
#define CYGONCE_HAL_DIAG_H

#include <pkgconf/hal.h>
#include <cyg/infra/cyg_type.h>

#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_)

//// Not the best place for this, but ...
externC void hal_delay_us(cyg_int32 usecs);
#define HAL_DELAY_US(n)          hal_delay_us(n);

#else  // old way of doing diagnostic I/O

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 // defined(CYGSEM_HAL_VIRTUAL_VECTOR_DIAG)
#endif /* CYGONCE_HAL_DIAG_H */
