Contiki 2.6
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00001 /* 00002 * Copyright (c) 2004, Swedish Institute of Computer Science. 00003 * All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions 00007 * are met: 00008 * 1. Redistributions of source code must retain the above copyright 00009 * notice, this list of conditions and the following disclaimer. 00010 * 2. Redistributions in binary form must reproduce the above copyright 00011 * notice, this list of conditions and the following disclaimer in the 00012 * documentation and/or other materials provided with the distribution. 00013 * 3. Neither the name of the Institute nor the names of its contributors 00014 * may be used to endorse or promote products derived from this software 00015 * without specific prior written permission. 00016 * 00017 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 00018 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00019 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00020 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 00021 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00022 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 00023 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00024 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00025 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 00026 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00027 * SUCH DAMAGE. 00028 * 00029 * This file is part of the Contiki operating system. 00030 * 00031 * Author: Adam Dunkels <adam@sics.se> 00032 * 00033 * $Id: eeprom.c,v 1.1 2006/06/17 22:41:31 adamdunkels Exp $ 00034 */ 00035 #include "dev/eeprom.h" 00036 #include "node.h" 00037 #include <stdio.h> 00038 00039 #include <fcntl.h> 00040 #include <unistd.h> 00041 #include <stdio.h> 00042 #include <string.h> 00043 00044 static unsigned char eeprom[65536]; 00045 00046 void 00047 eeprom_write(eeprom_addr_t addr, unsigned char *buf, int size) 00048 { 00049 int f; 00050 char name[400]; 00051 00052 snprintf(name, sizeof(name), "eeprom.%d.%d", node_x(), node_y()); 00053 f = open(name, O_WRONLY | O_APPEND | O_CREAT, 0644); 00054 lseek(f, addr, SEEK_SET); 00055 write(f, buf, size); 00056 close(f); 00057 00058 printf("eeprom_write(addr 0x%02x, buf %p, size %d);\n", addr, buf, size); 00059 00060 memcpy(&eeprom[addr], buf, size); 00061 } 00062 void 00063 eeprom_read(eeprom_addr_t addr, unsigned char *buf, int size) 00064 { 00065 /* printf("eeprom_read(addr 0x%02x, buf %p, size %d);\n", addr, buf, size);*/ 00066 memcpy(buf, &eeprom[addr], size); 00067 }