113 lines
3.5 KiB
C
113 lines
3.5 KiB
C
/*
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* Copyright (C) 2015, Intel Corporation. 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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*
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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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#include <stdio.h>
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#include "contiki-net.h"
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#include "net/ipv4/uip-neighbor.h"
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#include "net/eth-proc.h"
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#include "eth.h"
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#define BUF ((struct uip_eth_hdr *)&uip_buf[0])
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#define IPBUF ((struct uip_ip_hdr *)&uip_buf[UIP_LLH_LEN])
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PROCESS(eth_process, "Ethernet");
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/*---------------------------------------------------------------------------*/
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#if NETSTACK_CONF_WITH_IPV6
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static uint8_t
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output(const uip_lladdr_t *dest_mac)
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{
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if (dest_mac == NULL) {
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/* broadcast packet */
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memset(&BUF->dest, 0xFF, UIP_LLH_LEN);
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} else {
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memcpy(&BUF->dest, dest_mac, UIP_LLH_LEN);
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}
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memcpy(&BUF->src, uip_lladdr.addr, UIP_LLH_LEN);
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quarkX1000_eth_send();
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return 0;
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}
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#else
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static uint8_t
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output(void)
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{
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uip_arp_out();
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quarkX1000_eth_send();
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return 0;
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}
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#endif /* NETSTACK_CONF_WITH_IPV6 */
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/*---------------------------------------------------------------------------*/
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static void
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pollhandler(void)
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{
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process_poll(ð_process);
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quarkX1000_eth_poll(&uip_len);
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if(uip_len > 0) {
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#if NETSTACK_CONF_WITH_IPV6
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if(BUF->type == uip_htons(UIP_ETHTYPE_IPV6)) {
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tcpip_input();
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}
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#else
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if(BUF->type == uip_htons(UIP_ETHTYPE_IP)) {
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uip_len -= sizeof(struct uip_eth_hdr);
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tcpip_input();
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} else if(BUF->type == uip_htons(UIP_ETHTYPE_ARP)) {
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uip_arp_arpin();
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/* If the above function invocation resulted in data that
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should be sent out on the network, the global variable
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uip_len is set to a value > 0. */
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if(uip_len > 0) {
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quarkX1000_eth_send();
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}
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}
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#endif /* NETSTACK_CONF_WITH_IPV6 */
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}
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}
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(eth_process, ev, data)
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{
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PROCESS_POLLHANDLER(pollhandler());
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PROCESS_BEGIN();
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tcpip_set_outputfunc(output);
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process_poll(ð_process);
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PROCESS_WAIT_UNTIL(ev == PROCESS_EVENT_EXIT);
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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