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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 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):
// 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;
}
|
