nes-proj/platform/exp5438/node-id.c

82 lines
2.7 KiB
C

/*
* Copyright (c) 2006, Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
* $Id: node-id.c,v 1.2 2010/08/26 22:08:11 nifi Exp $
*/
/**
* \file
* Utility to store a node id in the external flash
* \author
* Adam Dunkels <adam@sics.se>
*/
#include "node-id.h"
#include "contiki-conf.h"
#include "dev/xmem.h"
#include <string.h>
unsigned short node_id = 0;
unsigned char node_mac[8];
uint8_t id[] = {0xab, 0xcd};
/*---------------------------------------------------------------------------*/
void
node_id_restore(void)
{
uint8_t *infomem;
infomem = (uint8_t *) 0x1800;
uint8_t i;
if(infomem[0] == id[0] && infomem[1] == id[1]) {
for(i = 0; i < 8; i++) {
node_mac[i] = infomem[2 + i];
}
} else {
/* default address */
node_mac[0] = 0x02;
node_mac[1] = 0x012;
node_mac[3] = 0x074;
node_mac[4] = 0x000;
node_mac[5] = 0x01;
node_mac[6] = 0x02;
node_mac[7] = 0x03;
}
node_id = node_mac[7] | (node_mac[6] << 2);
}
/*---------------------------------------------------------------------------*/
void
node_id_burn(unsigned short id)
{
/* add this later */
}
/*---------------------------------------------------------------------------*/