88 lines
3.1 KiB
C
88 lines
3.1 KiB
C
/*
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* Copyright (c) 2004, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* Author: Adam Dunkels <adam@sics.se>
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*
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* $Id: xmem.c,v 1.2 2008/07/09 09:37:50 adamdunkels Exp $
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*/
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#include "contiki-conf.h"
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#include "dev/xmem.h"
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#include <stdio.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <string.h>
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#define XMEM_SIZE 1024 * 1024
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static unsigned char xmem[XMEM_SIZE];
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/*---------------------------------------------------------------------------*/
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int
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xmem_pwrite(const void *buf, int size, unsigned long offset)
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{
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/* int f;
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char name[400];
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snprintf(name, sizeof(name), "xmem.%d.%d", node_x(), node_y());
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f = open(name, O_WRONLY | O_APPEND | O_CREAT, 0644);
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lseek(f, addr, SEEK_SET);
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write(f, buf, size);
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close(f);*/
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/* printf("xmem_write(offset 0x%02x, buf %p, size %l);\n", offset, buf, size);*/
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memcpy(&xmem[offset], buf, size);
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return size;
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}
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/*---------------------------------------------------------------------------*/
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int
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xmem_pread(void *buf, int size, unsigned long offset)
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{
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/* printf("xmem_read(addr 0x%02x, buf %p, size %d);\n", addr, buf, size);*/
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memcpy(buf, &xmem[offset], size);
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return size;
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}
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/*---------------------------------------------------------------------------*/
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int
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xmem_erase(long nbytes, unsigned long offset)
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{
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/* printf("xmem_read(addr 0x%02x, buf %p, size %d);\n", addr, buf, size);*/
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memset(&xmem[offset], 0, nbytes);
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return nbytes;
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}
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/*---------------------------------------------------------------------------*/
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void
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xmem_init(void)
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{
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}
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/*---------------------------------------------------------------------------*/
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