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/*=============================================================================
//
// hal_diag.c
//
// HAL diagnostic output code
//
//=============================================================================
// ####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// 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
// 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.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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 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): nickg
// Contributors: nickg, dmoseley
// Date: 1998-03-02
// Purpose: HAL diagnostic output
// Description: Implementations of HAL diagnostic output support.
//
//####DESCRIPTIONEND####
//
//===========================================================================*/
#include <pkgconf/hal.h>
#include <cyg/infra/cyg_type.h> // base types
#include <cyg/infra/cyg_trac.h> // tracing macros
#include <cyg/infra/cyg_ass.h> // assertion macros
#include <cyg/hal/hal_arch.h>
#include <cyg/hal/hal_diag.h>
#include <cyg/hal/hal_intr.h>
#include <cyg/hal/hal_io.h>
//-----------------------------------------------------------------------------
// Select which diag channels to use
//#define CYG_KERNEL_DIAG_LCD
#define CYG_KERNEL_DIAG_SERIAL
/*---------------------------------------------------------------------------*/
void hal_diag_led(int x)
{
HAL_WRITE_UINT32(HAL_DISPLAY_LEDBAR, x);
#if !defined(CYG_KERNEL_DIAG_LCD)
HAL_WRITE_UINT32(HAL_DISPLAY_ASCIIWORD, x);
#endif
}
externC void diag_write_string (const char*);
#ifdef CYG_KERNEL_DIAG_SERIAL
extern void cyg_hal_plf_comms_init(void);
extern void cyg_hal_plf_serial_putc(void*, cyg_uint8);
extern cyg_uint8 cyg_hal_plf_serial_getc(void*);
#endif
void hal_diag_init(void)
{
#if defined(CYGSEM_HAL_ROM_MONITOR) && !defined(CYG_KERNEL_DIAG_SERIAL)
// It's handy to have the LCD initialized at reset when using it
// for debugging output.
// The serial port likely doesn't work yet. Let's wait.
diag_write_string ("eCos ROM " __TIME__ "\n");
diag_write_string (__DATE__ "\n");
#endif
#if defined(CYG_KERNEL_DIAG_SERIAL)
cyg_hal_plf_comms_init();
#endif
}
#if defined(CYG_KERNEL_DIAG_LCD)
static void hal_diag_clear_lcd(void)
{
volatile int i = 0x20000;
while (--i) ;
HAL_WRITE_UINT32(HAL_DISPLAY_ASCIIPOS0, ' ');
HAL_WRITE_UINT32(HAL_DISPLAY_ASCIIPOS1, ' ');
HAL_WRITE_UINT32(HAL_DISPLAY_ASCIIPOS2, ' ');
HAL_WRITE_UINT32(HAL_DISPLAY_ASCIIPOS3, ' ');
HAL_WRITE_UINT32(HAL_DISPLAY_ASCIIPOS4, ' ');
HAL_WRITE_UINT32(HAL_DISPLAY_ASCIIPOS5, ' ');
HAL_WRITE_UINT32(HAL_DISPLAY_ASCIIPOS6, ' ');
HAL_WRITE_UINT32(HAL_DISPLAY_ASCIIPOS7, ' ');
}
#endif /* defined(CYG_KERNEL_DIAG_LCD) */
void hal_diag_write_char(char c)
{
#if defined(CYG_KERNEL_DIAG_LCD)
static volatile CYG_WORD* reg = HAL_DISPLAY_ASCIIPOS0;
#endif
unsigned long __state;
HAL_DISABLE_INTERRUPTS(__state);
if(c == '\n')
{
#if defined(CYG_KERNEL_DIAG_LCD)
reg = HAL_DISPLAY_ASCIIPOS0;
hal_diag_clear_lcd();
#endif
#if defined (CYG_KERNEL_DIAG_SERIAL)
cyg_hal_plf_serial_putc(NULL, '\r');
cyg_hal_plf_serial_putc(NULL, '\n');
#endif
}
else if (c == '\r')
{
// Ignore '\r'
}
else
{
#if defined(CYG_KERNEL_DIAG_LCD)
if (reg == HAL_DISPLAY_ASCIIPOS0)
hal_diag_clear_lcd();
HAL_WRITE_UINT32(reg, c);
// Advance to next LED position.
if (reg == HAL_DISPLAY_ASCIIPOS0)
reg = HAL_DISPLAY_ASCIIPOS1;
else if (reg == HAL_DISPLAY_ASCIIPOS1)
reg = HAL_DISPLAY_ASCIIPOS2;
else if (reg == HAL_DISPLAY_ASCIIPOS2)
reg = HAL_DISPLAY_ASCIIPOS3;
else if (reg == HAL_DISPLAY_ASCIIPOS3)
reg = HAL_DISPLAY_ASCIIPOS4;
else if (reg == HAL_DISPLAY_ASCIIPOS4)
reg = HAL_DISPLAY_ASCIIPOS5;
else if (reg == HAL_DISPLAY_ASCIIPOS5)
reg = HAL_DISPLAY_ASCIIPOS6;
else if (reg == HAL_DISPLAY_ASCIIPOS6)
reg = HAL_DISPLAY_ASCIIPOS7;
else // reg == HAL_DISPLAY_ASCIIPOS7 or UNKNOWN
reg = HAL_DISPLAY_ASCIIPOS0;
#endif
#if defined(CYG_KERNEL_DIAG_SERIAL)
cyg_hal_plf_serial_putc(NULL, c);
#endif
}
HAL_RESTORE_INTERRUPTS(__state);
}
void hal_diag_read_char(char* c)
{
*c = cyg_hal_plf_serial_getc(NULL);
}
/*---------------------------------------------------------------------------*/
/* End of hal_diag.c */
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