Subversion Repositories openrisc

//==========================================================================

//

//      generic_mem.c

//

//      Routines for reading and writing memory.

//

//==========================================================================

//####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):    

// Contributors: gthomas, dmoseley

// Date:         1999-10-20

// Purpose:      

// Description:  It may be appropriate to relay directly into the stubs

//               implementation of read memory, without board specific

//               considerations such as checking the allowed ranges of

//               addresses. Perhaps there needs to be some consideration

//               of address spaces or, masking addresses.

//

//               This file implements a default version of reading and writing

//               memory when none of this is an issue

//               

//

//####DESCRIPTIONEND####

//

//=========================================================================

#ifdef HAVE_BSP

#include <bsp/bsp.h>

#include "cpu_info.h"

#endif

#include "board.h"

#include "monitor.h"

#include "tservice.h"

#ifndef HAVE_BSP

#include "generic-stub.h"

#endif

int

read_memory (mem_addr_t *src, int size, int amt, char *dst)

{

#if defined(HAVE_BSP) && !defined(USE_ECOS_HAL_SAFE_MEMORY)

    return (bsp_memory_read((unsigned char *)src->addr, MEM_ADDR_ASI(src),

                            size << 3, amt, dst) != amt);

#else

  int totamt = size * amt;

  return (totamt != __read_mem_safe (dst, (void*)src->addr, totamt));

#endif

}

int

write_memory (mem_addr_t *dst, int size, int amt, char *src)

{

#if defined(HAVE_BSP) && !defined(USE_ECOS_HAL_SAFE_MEMORY)

    return (bsp_memory_write((unsigned char *)dst->addr, MEM_ADDR_ASI(dst),

                             size << 3, amt, src) != amt);

#else

  int totamt = size * amt;

  return (totamt != __write_mem_safe (src, (void*)dst->addr, totamt));

#endif

}