Contiki 2.6

contiki-raven-default-init-net.c

00001 /*
00002  * Copyright (c) 2006, Technical University of Munich
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: Simon Barner <barner@in.tum.de>
00032  *
00033  * @(#)$$
00034  */
00035 #include "contiki-raven.h"
00036 #if !RF230BB
00037 #include "zmac.h"
00038 #endif
00039 #include "sicslowpan.h"
00040 #include "sicslow_ethernet.h"
00041 #include "rndis/rndis_task.h"
00042 
00043 void byte_reverse(uint8_t * bytes, uint8_t num)
00044 {
00045   uint8_t tempbyte;
00046   
00047   uint8_t i, j;
00048   
00049   i = 0;
00050   j = num - 1;
00051   
00052   while(i < j) {
00053           tempbyte = bytes[i];
00054           bytes[i] = bytes[j];
00055           bytes[j] = tempbyte;
00056 
00057           j--;
00058           i++; 
00059   }
00060   
00061   return;
00062 }
00063 
00064 void
00065 init_net(void)
00066 {
00067         extern uint64_t macLongAddr;
00068         uint64_t usb_ethernet_addr;
00069 
00070         // Because all of the logic below is done using little-endian
00071         // 64-bit integers, we need to reverse the byte order before
00072         // we can continue;
00073         byte_reverse((uint8_t*)&macLongAddr,8);
00074 
00075         /* Set local bit, Clear translate bit, Clear Multicast bit */
00076         macLongAddr &= ~(0x0700000000000000ULL);
00077         macLongAddr |=   0x0200000000000000ULL;
00078 
00079         /* Set the Ethernet address to the 15.4 MAC address */
00080         usb_ethernet_addr =  macLongAddr;
00081 
00082         /* Remove the middle two bytes... */
00083         usb_ethernet_addr = (usb_ethernet_addr & 0xffffffUL) | ((usb_ethernet_addr & 0xffffff0000000000ULL) >> 16);
00084 
00085         /* Change ieee802.15.4 address to correspond with what the ethernet's
00086          IPv6 address will be. This will have ff:fe in the middle.         */
00087         macLongAddr = (macLongAddr & 0xffffff0000ffffffULL) | (0x000000fffe000000ULL);
00088 
00089 #if !RF230BB
00090         ieee15_4ManagerAddress.set_long_addr(macLongAddr); 
00091 #endif
00092 
00093         byte_reverse((uint8_t*)&macLongAddr,8);
00094         byte_reverse((uint8_t*)&usb_ethernet_addr,6);
00095 
00096         usb_eth_set_mac_address((uint8_t*)&usb_ethernet_addr);
00097 }
00098