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/*=============================================================================
//
//      hal_diag.c
//
//      HAL diagnostic output code
//
//=============================================================================
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// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
//
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// for more details.                                                        
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// along with eCos; if not, write to the Free Software Foundation, Inc.,    
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//
// As a special exception, if other files instantiate templates or use      
// macros or inline functions from this file, or you compile this file      
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// 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):   yoshinori sato
// Contributors: yoshinori sato
// Date:        2002-02-16
// Purpose:     HAL diagnostic output
// Description: Implementations of HAL diagnostic output support.
//
//####DESCRIPTIONEND####
//
//===========================================================================*/
 
#include <pkgconf/hal.h>
 
#include <cyg/hal/hal_diag.h>
#include <cyg/hal/h8_sci.h>
#include <cyg/hal/var_intr.h>
 
#define SCI_BASE ((cyg_uint8*)CYGHAL_PLF_SCI_BASE)
 
static channel_data_t channel = { (cyg_uint8*)SCI_BASE, 0, 0};
 
void
cyg_hal_plf_comms_init(void)
{
    static int initialized = 0;
 
    if (initialized)
        return;
 
    initialized = 1;
 
    cyg_hal_plf_sci_init(0, 0, CYGNUM_HAL_INTERRUPT_RXI0, SCI_BASE);
}
 
void hal_diag_init(void)
{
    cyg_hal_plf_sci_init_channel(&channel);
}
 
void 
hal_diag_write_char( cyg_uint8 c )
{
    cyg_hal_plf_sci_putc(&channel, c);
}
 
void
hal_diag_read_char(cyg_uint8 *c)
{
    *c = (char) cyg_hal_plf_sci_getc(&channel);
}
 
/*===========================================================================*/
/* EOF hal_diag.c                                                            */