/* * Copyright (c) 2001-2004, Adam Dunkels. * 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. The name of the author may not be used to endorse or promote * products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 uIP TCP/IP stack. * * $Id: eth64-drv.c,v 1.2 2010/10/19 18:29:04 adamdunkels Exp $ * */ #include "contiki-net.h" #include "lan91c96.h" static u8_t output(void); static const struct uip_eth_addr addr = {{0x00,0x00,0x00,0x64,0x64,0x64}}; SERVICE(eth64_drv_service, packet_service, { output };); PROCESS(eth64_drv_process, "ETH64 driver"); /*---------------------------------------------------------------------------*/ static u8_t output(void) { uip_arp_out(); lan91c96_send(); return 0; } /*---------------------------------------------------------------------------*/ static void pollhandler(void) { #define BUF ((struct uip_eth_hdr *)&uip_buf[0]) /* Poll Ethernet device to see if there is a frame avaliable. */ uip_len = lan91c96_poll(); if(uip_len > 0) { /* A frame was avaliable (and is now read into the uip_buf), so we process it. */ if(BUF->type == UIP_HTONS(UIP_ETHTYPE_IP)) { uip_arp_ipin(); uip_len -= sizeof(struct uip_eth_hdr); tcpip_input(); } else if(BUF->type == UIP_HTONS(UIP_ETHTYPE_ARP)) { uip_arp_arpin(); /* If the above function invocation resulted in data that should be sent out on the network, the global variable uip_len is set to a value > 0. */ if(uip_len > 0) { lan91c96_send(); } } } } /*---------------------------------------------------------------------------*/ PROCESS_THREAD(eth64_drv_process, ev, data) { PROCESS_POLLHANDLER(pollhandler()); PROCESS_BEGIN(); uip_setethaddr(addr); lan91c96_init(); SERVICE_REGISTER(eth64_drv_service); process_poll(ð64_drv_process); while(1) { PROCESS_YIELD(); } PROCESS_END(); } /*---------------------------------------------------------------------------*/