plf_diag.c

ecos移植到R8H系列的源码。源码包来自http://www.cetoni.de/develop/develop_ecosh8s_en.html

//=============================================================================
//
//      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 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):    ysato
// Contributors: ysato, Uwe Kindler
// Date:        2003-12-06
// Purpose:     HAL diagnostic output
// Description: Implementations of HAL diagnostic output support.
//
//####DESCRIPTIONEND####
//
//=============================================================================


//=============================================================================
//                            DOXYGEN FILE HEADER
/// \file    plf_diag.c
/// \brief   HAL diagnostic output.
/// \author  ysato, Uwe Kindler
/// \date    2003-12-06
///  
/// Implementations of HAL diagnostic output support.
//=============================================================================


//=============================================================================
//                                  INCLUDES
//=============================================================================
#include <pkgconf/hal.h>

#include <cyg/hal/hal_diag.h>
#include <cyg/hal/var_intr.h>
#include <cyg/hal/h8s_sci.h>
#include <cyg/hal/mod_regs_sci.h>       // serial register definitions>


//=============================================================================
//                                  DEFINES
//=============================================================================
#define CHAN_TBL_ENTRY(base, timeout, baud, vect) \
        {(cyg_uint8 *)base, (cyg_uint32)timeout, baud, vect}
        
//
// CYGSEM_HAL_VIRTUAL_VECTOR_DIAG
//
// Virtual vector support allows the HAL to let the ROM monitor handle 
// certain operations. The virtual vector table defines a calling interface 
// between applications running in RAM and the ROM monitor.
//
#if defined(CYGSEM_HAL_VIRTUAL_VECTOR_DIAG)
//===========================================================================
//                                  LOCALS
//===========================================================================
///
/// Serial channel data for all available channels.
/// This stores data of all available channels. Our EDOSK board provides
/// only one serial channel - SCI2 
///
static channel_data_t channels[CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS] = 
{
    CHAN_TBL_ENTRY(CYGARC_SCI2_BASE, 
                   1000, 
                   CYGNUM_HAL_VIRTUAL_VECTOR_CONSOLE_CHANNEL_BAUD, 
                   CYGNUM_HAL_INTERRUPT_RXI2),   
};


externC void hal_console_comm_init(channel_data_t *pchan, cyg_uint8 chan_no);
//============================================================================
//                          INITIALIZE DIAGNOSTIC DEVICE
///
///  Diagnostic channel initialisation.
///  Initialisation of diagnostic channels for console output if we use
///  virtual vectors. The HAL serial driver must, when called via 
///  cyg_hal_plf_comms_init(), initialize the communication channels.
//============================================================================
void cyg_hal_plf_comms_init(void)
{
    static int initialized = 0;
    cyg_uint8  i;

    if (initialized)
    {
        return;
    }

    initialized = 1;
    for (i = 0; i < CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS; i++)
    {
        hal_console_comm_init(&channels[i], i);
    }
}
#endif // #if defined(CYGSEM_HAL_VIRTUAL_VECTOR_DIAG)

//
// When vector table console code is not used, the we must map the 
// HAL_DIAG_INIT, HAL_DIAG_WRITE_CHAR and HAL_DIAG_READ_CHAR macros 
// directly to the low-level IO functions, hardwired to use at compile-time 
// configured channel.
//
#if !defined(CYGSEM_HAL_VIRTUAL_VECTOR_DIAG) || defined(CYGBLD_HAL_H8S_ADDITIONAL_DIAG_CODE)
//=============================================================================
//                                    LOCALS
//=============================================================================
///
/// This is our hardwired diagnostic channel - we use SCI2.
///
static channel_data_t channel = 
{
    (cyg_uint8 *)CYGARC_SCI2_BASE, 
    (cyg_uint32)1000, 
    CYGNUM_HAL_VIRTUAL_VECTOR_CONSOLE_CHANNEL_BAUD, 
    CYGNUM_HAL_INTERRUPT_RXI2 
};



externC void hal_diag_init(channel_data_t *pchan_arg);
//=============================================================================
//                          INITIALIZE DIAGNOSTIC DEVICE
///
///  Initializes diagnostic channels (Virtual Vectors not present).
///  If we do not use virtual vector comm channels then we have to 
///  initialize the hardwired debug channel manual. We use the common 
///  diagnostic code provided by H8S architecture HAL
//=============================================================================
void hal_plf_diag_init(void)
{
    hal_diag_init(&channel);
}
#endif
//-----------------------------------------------------------------------------
// EOF plf_diag.c