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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [cygmon/] [v2_0/] [misc/] [bsp/] [common/] [sysinfo.c] - Rev 223
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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; }
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