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

//

//      sysinfo.c

//

//      Interface for getting system information.

//

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

//####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

// Date:         1999-10-20

// Purpose:      Interface for getting system information.

// Description:  

//               

//

//####DESCRIPTIONEND####

//

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

#include <stdlib.h>

#include <bsp/bsp.h>

#include "bsp_if.h"

/*

 * In order to construct the _bsp_memory_list, some board specific code

 * may have to size RAM regions. To do this easily and reliably, the code

 * needs to run from ROM before .bss and .data sections are initialized.

 * This leads to the problem of where to store the results of the memory

 * sizing tests. In this case, the _bsp_init_stack routine which sizes

 * memory and sets up the stack will place the board-specific information

 * on the stack and return with the stack pointer pointing to a pointer to

 * the information. That is, addr_of_info = *(void **)sp. The architecture

 * specific code will then copy that pointer to the _bsp_ram_info_ptr variable

 * after initializing the .data and .bss sections.

 */

void *_bsp_ram_info_ptr;

/*

 *  Name of CPU and board. Should be overridden by arch/board specific

 *  code.

 */

struct bsp_platform_info _bsp_platform_info = {

    "Unknown",  /* cpu name */

    "Unknown",  /* board name */

    ""          /* extra info */

};

/*

 *  Information about possible data cache. Should be overridden by

 *  by arch/board specific code.

 */

struct bsp_cachesize_info _bsp_dcache_info = {

    0, 0, 0

};

/*

 *  Information about possible instruction cache. Should be overridden by

 *  by arch/board specific code.

 */

struct bsp_cachesize_info _bsp_icache_info = {

    0, 0, 0

};

/*

 *  Information about possible secondary cache. Should be overridden by

 *  by arch/board specific code.

 */

struct bsp_cachesize_info _bsp_scache_info = {

    0, 0, 0

};

int

_bsp_sysinfo(enum bsp_info_id id, va_list ap)

{

    int  index, rval = 0;

    void *p;

    switch (id) {

      case BSP_INFO_PLATFORM:

        p = va_arg(ap, void *);

        *(struct bsp_platform_info *)p = _bsp_platform_info;

        break;

      case BSP_INFO_DCACHE:

        p = va_arg(ap, void *);

        *(struct bsp_cachesize_info *)p = _bsp_dcache_info;

        break;

      case BSP_INFO_ICACHE:

        p = va_arg(ap, void *);

        *(struct bsp_cachesize_info *)p = _bsp_icache_info;

        break;

      case BSP_INFO_SCACHE:

        p = va_arg(ap, void *);

        *(struct bsp_cachesize_info *)p = _bsp_scache_info;

        break;

      case BSP_INFO_MEMORY:

        index = va_arg(ap, int);

        p = va_arg(ap, void *);

        if (index >= 0 && index < _bsp_num_mem_regions)

            *(struct bsp_mem_info *)p = _bsp_memory_list[index];

        else

            rval = -1;

        break;

      case BSP_INFO_COMM:

        index = va_arg(ap, int);

        p = va_arg(ap, void *);

        if (index >= 0 && index < _bsp_num_comms)

            *(struct bsp_comm_info *)p = _bsp_comm_list[index].info;

        else if (index == _bsp_num_comms && _bsp_net_channel != NULL)

            *(struct bsp_comm_info *)p = _bsp_net_channel->info;

        else

            rval = -1;

        break;

      default:

        rval =  -1;

    }

    return rval;

}