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/*
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Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#include "netCfg.h"
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#if NET_ETH
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#include "mbed.h"
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Ethernet *pEth = NULL;
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "lwip/opt.h"
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#include "lwip/def.h"
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#include "lwip/pbuf.h"
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#include "lwip/sys.h"
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#include "lwip/stats.h"
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#include "netif/etharp.h"
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#include "string.h"
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//#include "eth_drv.h"
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#define IFNAME0 'E'
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#define IFNAME1 'X'
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#define min(x,y) (((x)<(y))?(x):(y))
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struct netif* eth_netif;
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static err_t eth_output(struct netif *netif, struct pbuf *p) {
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#if ETH_PAD_SIZE
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pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */
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#endif
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do {
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pEth->write((const char *)p->payload, p->len);
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} while((p = p->next)!=NULL);
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pEth->send();
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#if ETH_PAD_SIZE
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pbuf_header(p, ETH_PAD_SIZE); /* reclaim the padding word */
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#endif
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LINK_STATS_INC(link.xmit);
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return ERR_OK;
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}
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/*
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void show(char *buf, int size) {
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printf("Destination: %02hx:%02hx:%02hx:%02hx:%02hx:%02hx\n",
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buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
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printf("Source: %02hx:%02hx:%02hx:%02hx:%02hx:%02hx\n",
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buf[6], buf[7], buf[8], buf[9], buf[10], buf[11]);
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printf("Type %hd\n", htons((short)buf[12]));
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// hexview(buf, size);
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}
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*/
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void eth_poll() {
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struct eth_hdr *ethhdr;
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struct pbuf *frame, *p;
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int len, read;
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while((len = pEth->receive()) != 0) {
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frame = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
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if(frame == NULL) {
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return;
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}
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p = frame;
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/* no packet could be read, silently ignore this */
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if (p == NULL) return;
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do {
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read = pEth->read((char *)p->payload, p->len);
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p = p->next;
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} while(p != NULL && read != 0);
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#if ETH_PAD_SIZE
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pbuf_header(p, ETH_PAD_SIZE);
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#endif
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ethhdr = (struct eth_hdr *)(frame->payload);
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// show((char*)ethhdr, 13);
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/*
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switch(htons(ethhdr->type)) {
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case ETHTYPE_IP:
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etharp_ip_input(gnetif, frame);
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pbuf_header(frame, -((s16_t) sizeof(struct eth_hdr)));
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gnetif->input(frame, gnetif);
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break;
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case ETHTYPE_ARP:
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etharp_arp_input(gnetif, (struct eth_addr *)(gnetif->hwaddr), frame);
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break;
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default:
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break;
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}*/
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//ethernet_input(frame, gnetif);
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switch (htons(ethhdr->type)) {
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/* IP or ARP packet? */
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case ETHTYPE_IP:
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case ETHTYPE_ARP:
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#if PPPOE_SUPPORT
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/* PPPoE packet? */
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case ETHTYPE_PPPOEDISC:
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case ETHTYPE_PPPOE:
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#endif /* PPPOE_SUPPORT */
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/* full packet send to tcpip_thread to process */
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//if (netif->input(p, gnetif)!=ERR_OK)
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if (ethernet_input(frame, eth_netif)!=ERR_OK)
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{ LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n"));
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pbuf_free(frame);
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frame = NULL;
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}
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break;
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default:
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pbuf_free(frame);
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frame = NULL;
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break;
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}
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/* pbuf_free(frame); */
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}
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}
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err_t eth_init(struct netif *netif) {
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LWIP_ASSERT("netif != NULL", (netif != NULL));
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NETIF_INIT_SNMP(netif, snmp_ifType_ethernet_csmacd, 0x2EA);
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/* maximum transfer unit */
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netif->mtu = 0x2EA;
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/* device capabilities */
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/* don't set NETIF_FLAG_ETHARP if this device is not an ethernet one */
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netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP | NETIF_FLAG_IGMP;
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netif->state = NULL;
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eth_netif = netif;
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netif->name[0] = IFNAME0;
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netif->name[1] = IFNAME1;
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/* We directly use etharp_output() here to save a function call.
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* You can instead declare your own function an call etharp_output()
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183
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* from it if you have to do some checks before sending (e.g. if link
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* is available...) */
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netif->output = etharp_output;
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netif->linkoutput = eth_output;
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187
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pEth = new Ethernet();
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189
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190
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return ERR_OK;
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191
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}
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192
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void eth_free()
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194
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{
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if(pEth)
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196
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delete pEth;
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197
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pEth = NULL;
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198
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}
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199
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200
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void eth_address(char* mac) {
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201
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pEth->address(mac);
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202
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}
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203
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204
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#ifdef __cplusplus
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205
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};
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#endif
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| mbed714 |
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207
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208
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#endif
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Daniel Peter