103 lines
3.5 KiB
C
103 lines
3.5 KiB
C
/*
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* Copyright (c) 2012-2013, Thingsquare, http://www.thingsquare.com/.
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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 copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* 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,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "contiki.h"
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#include "enc28j60.h"
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#include "enc28j60-ip64-driver.h"
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#include "ip64.h"
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#include "ip64-eth.h"
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#include <string.h>
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#include <stdio.h>
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PROCESS(enc28j60_ip64_driver_process, "ENC28J60 IP64 driver");
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/*---------------------------------------------------------------------------*/
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static void
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init(void)
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{
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uint8_t eui64[8];
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uint8_t macaddr[6];
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/* Assume that linkaddr_node_addr holds the EUI64 of this device. */
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memcpy(eui64, &linkaddr_node_addr, sizeof(eui64));
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/* Mangle the EUI64 into a 48-bit Ethernet address. */
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memcpy(&macaddr[0], &eui64[0], 3);
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memcpy(&macaddr[3], &eui64[5], 3);
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/* In case the OUI happens to contain a broadcast bit, we mask that
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out here. */
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macaddr[0] = (macaddr[0] & 0xfe);
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/* Set the U/L bit, in order to create a locally administered MAC address */
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macaddr[0] = (macaddr[0] | 0x02);
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memcpy(ip64_eth_addr.addr, macaddr, sizeof(macaddr));
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printf("MAC addr %02x:%02x:%02x:%02x:%02x:%02x\n",
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macaddr[0], macaddr[1], macaddr[2],
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macaddr[3], macaddr[4], macaddr[5]);
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enc28j60_init(macaddr);
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process_start(&enc28j60_ip64_driver_process, NULL);
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}
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/*---------------------------------------------------------------------------*/
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static int
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output(uint8_t *packet, uint16_t len)
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{
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enc28j60_send(packet, len);
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return len;
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}
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(enc28j60_ip64_driver_process, ev, data)
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{
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static int len;
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static struct etimer e;
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PROCESS_BEGIN();
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while(1) {
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etimer_set(&e, 1);
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PROCESS_WAIT_EVENT();
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len = enc28j60_read(ip64_packet_buffer, ip64_packet_buffer_maxlen);
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if(len > 0) {
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IP64_INPUT(ip64_packet_buffer, len);
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}
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}
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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const struct ip64_driver enc28j60_ip64_driver = {
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init,
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output
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};
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/*---------------------------------------------------------------------------*/
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