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Dependencies:   mbed

NetServices/lwip/netif/ethernetif.c@1:f5ac63519541, 2014-03-05 (annotated)

Committer:
Michael J. Spencer
Date:
Wed Mar 05 06:14:02 2014 -0800
Revision:
1:f5ac63519541
Initial commit.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Michael J. Spencer 1:f5ac63519541 1 /**
Michael J. Spencer 1:f5ac63519541 2 * @file
Michael J. Spencer 1:f5ac63519541 3 * Ethernet Interface Skeleton
Michael J. Spencer 1:f5ac63519541 4 *
Michael J. Spencer 1:f5ac63519541 5 */
Michael J. Spencer 1:f5ac63519541 6
Michael J. Spencer 1:f5ac63519541 7 /*
Michael J. Spencer 1:f5ac63519541 8 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
Michael J. Spencer 1:f5ac63519541 9 * All rights reserved.
Michael J. Spencer 1:f5ac63519541 10 *
Michael J. Spencer 1:f5ac63519541 11 * Redistribution and use in source and binary forms, with or without modification,
Michael J. Spencer 1:f5ac63519541 12 * are permitted provided that the following conditions are met:
Michael J. Spencer 1:f5ac63519541 13 *
Michael J. Spencer 1:f5ac63519541 14 * 1. Redistributions of source code must retain the above copyright notice,
Michael J. Spencer 1:f5ac63519541 15 * this list of conditions and the following disclaimer.
Michael J. Spencer 1:f5ac63519541 16 * 2. Redistributions in binary form must reproduce the above copyright notice,
Michael J. Spencer 1:f5ac63519541 17 * this list of conditions and the following disclaimer in the documentation
Michael J. Spencer 1:f5ac63519541 18 * and/or other materials provided with the distribution.
Michael J. Spencer 1:f5ac63519541 19 * 3. The name of the author may not be used to endorse or promote products
Michael J. Spencer 1:f5ac63519541 20 * derived from this software without specific prior written permission.
Michael J. Spencer 1:f5ac63519541 21 *
Michael J. Spencer 1:f5ac63519541 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
Michael J. Spencer 1:f5ac63519541 23 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
Michael J. Spencer 1:f5ac63519541 24 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
Michael J. Spencer 1:f5ac63519541 25 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
Michael J. Spencer 1:f5ac63519541 26 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
Michael J. Spencer 1:f5ac63519541 27 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
Michael J. Spencer 1:f5ac63519541 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
Michael J. Spencer 1:f5ac63519541 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
Michael J. Spencer 1:f5ac63519541 30 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
Michael J. Spencer 1:f5ac63519541 31 * OF SUCH DAMAGE.
Michael J. Spencer 1:f5ac63519541 32 *
Michael J. Spencer 1:f5ac63519541 33 * This file is part of the lwIP TCP/IP stack.
Michael J. Spencer 1:f5ac63519541 34 *
Michael J. Spencer 1:f5ac63519541 35 * Author: Adam Dunkels <adam@sics.se>
Michael J. Spencer 1:f5ac63519541 36 *
Michael J. Spencer 1:f5ac63519541 37 */
Michael J. Spencer 1:f5ac63519541 38
Michael J. Spencer 1:f5ac63519541 39 /*
Michael J. Spencer 1:f5ac63519541 40 * This file is a skeleton for developing Ethernet network interface
Michael J. Spencer 1:f5ac63519541 41 * drivers for lwIP. Add code to the low_level functions and do a
Michael J. Spencer 1:f5ac63519541 42 * search-and-replace for the word "ethernetif" to replace it with
Michael J. Spencer 1:f5ac63519541 43 * something that better describes your network interface.
Michael J. Spencer 1:f5ac63519541 44 */
Michael J. Spencer 1:f5ac63519541 45
Michael J. Spencer 1:f5ac63519541 46 #include "lwip/opt.h"
Michael J. Spencer 1:f5ac63519541 47
Michael J. Spencer 1:f5ac63519541 48 #if 0 /* don't build, this is only a skeleton, see previous comment */
Michael J. Spencer 1:f5ac63519541 49
Michael J. Spencer 1:f5ac63519541 50 #include "lwip/def.h"
Michael J. Spencer 1:f5ac63519541 51 #include "lwip/mem.h"
Michael J. Spencer 1:f5ac63519541 52 #include "lwip/pbuf.h"
Michael J. Spencer 1:f5ac63519541 53 #include "lwip/sys.h"
Michael J. Spencer 1:f5ac63519541 54 #include <lwip/stats.h>
Michael J. Spencer 1:f5ac63519541 55 #include <lwip/snmp.h>
Michael J. Spencer 1:f5ac63519541 56 #include "netif/etharp.h"
Michael J. Spencer 1:f5ac63519541 57 #include "netif/ppp_oe.h"
Michael J. Spencer 1:f5ac63519541 58
Michael J. Spencer 1:f5ac63519541 59 /* Define those to better describe your network interface. */
Michael J. Spencer 1:f5ac63519541 60 #define IFNAME0 'e'
Michael J. Spencer 1:f5ac63519541 61 #define IFNAME1 'n'
Michael J. Spencer 1:f5ac63519541 62
Michael J. Spencer 1:f5ac63519541 63 /**
Michael J. Spencer 1:f5ac63519541 64 * Helper struct to hold private data used to operate your ethernet interface.
Michael J. Spencer 1:f5ac63519541 65 * Keeping the ethernet address of the MAC in this struct is not necessary
Michael J. Spencer 1:f5ac63519541 66 * as it is already kept in the struct netif.
Michael J. Spencer 1:f5ac63519541 67 * But this is only an example, anyway...
Michael J. Spencer 1:f5ac63519541 68 */
Michael J. Spencer 1:f5ac63519541 69 struct ethernetif {
Michael J. Spencer 1:f5ac63519541 70 struct eth_addr *ethaddr;
Michael J. Spencer 1:f5ac63519541 71 /* Add whatever per-interface state that is needed here. */
Michael J. Spencer 1:f5ac63519541 72 };
Michael J. Spencer 1:f5ac63519541 73
Michael J. Spencer 1:f5ac63519541 74 /* Forward declarations. */
Michael J. Spencer 1:f5ac63519541 75 static void ethernetif_input(struct netif *netif);
Michael J. Spencer 1:f5ac63519541 76
Michael J. Spencer 1:f5ac63519541 77 /**
Michael J. Spencer 1:f5ac63519541 78 * In this function, the hardware should be initialized.
Michael J. Spencer 1:f5ac63519541 79 * Called from ethernetif_init().
Michael J. Spencer 1:f5ac63519541 80 *
Michael J. Spencer 1:f5ac63519541 81 * @param netif the already initialized lwip network interface structure
Michael J. Spencer 1:f5ac63519541 82 * for this ethernetif
Michael J. Spencer 1:f5ac63519541 83 */
Michael J. Spencer 1:f5ac63519541 84 static void
Michael J. Spencer 1:f5ac63519541 85 low_level_init(struct netif *netif)
Michael J. Spencer 1:f5ac63519541 86 {
Michael J. Spencer 1:f5ac63519541 87 struct ethernetif *ethernetif = netif->state;
Michael J. Spencer 1:f5ac63519541 88
Michael J. Spencer 1:f5ac63519541 89 /* set MAC hardware address length */
Michael J. Spencer 1:f5ac63519541 90 netif->hwaddr_len = ETHARP_HWADDR_LEN;
Michael J. Spencer 1:f5ac63519541 91
Michael J. Spencer 1:f5ac63519541 92 /* set MAC hardware address */
Michael J. Spencer 1:f5ac63519541 93 netif->hwaddr[0] = ;
Michael J. Spencer 1:f5ac63519541 94 ...
Michael J. Spencer 1:f5ac63519541 95 netif->hwaddr[5] = ;
Michael J. Spencer 1:f5ac63519541 96
Michael J. Spencer 1:f5ac63519541 97 /* maximum transfer unit */
Michael J. Spencer 1:f5ac63519541 98 netif->mtu = 1500;
Michael J. Spencer 1:f5ac63519541 99
Michael J. Spencer 1:f5ac63519541 100 /* device capabilities */
Michael J. Spencer 1:f5ac63519541 101 /* don't set NETIF_FLAG_ETHARP if this device is not an ethernet one */
Michael J. Spencer 1:f5ac63519541 102 netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP;
Michael J. Spencer 1:f5ac63519541 103
Michael J. Spencer 1:f5ac63519541 104 /* Do whatever else is needed to initialize interface. */
Michael J. Spencer 1:f5ac63519541 105 }
Michael J. Spencer 1:f5ac63519541 106
Michael J. Spencer 1:f5ac63519541 107 /**
Michael J. Spencer 1:f5ac63519541 108 * This function should do the actual transmission of the packet. The packet is
Michael J. Spencer 1:f5ac63519541 109 * contained in the pbuf that is passed to the function. This pbuf
Michael J. Spencer 1:f5ac63519541 110 * might be chained.
Michael J. Spencer 1:f5ac63519541 111 *
Michael J. Spencer 1:f5ac63519541 112 * @param netif the lwip network interface structure for this ethernetif
Michael J. Spencer 1:f5ac63519541 113 * @param p the MAC packet to send (e.g. IP packet including MAC addresses and type)
Michael J. Spencer 1:f5ac63519541 114 * @return ERR_OK if the packet could be sent
Michael J. Spencer 1:f5ac63519541 115 * an err_t value if the packet couldn't be sent
Michael J. Spencer 1:f5ac63519541 116 *
Michael J. Spencer 1:f5ac63519541 117 * @note Returning ERR_MEM here if a DMA queue of your MAC is full can lead to
Michael J. Spencer 1:f5ac63519541 118 * strange results. You might consider waiting for space in the DMA queue
Michael J. Spencer 1:f5ac63519541 119 * to become availale since the stack doesn't retry to send a packet
Michael J. Spencer 1:f5ac63519541 120 * dropped because of memory failure (except for the TCP timers).
Michael J. Spencer 1:f5ac63519541 121 */
Michael J. Spencer 1:f5ac63519541 122
Michael J. Spencer 1:f5ac63519541 123 static err_t
Michael J. Spencer 1:f5ac63519541 124 low_level_output(struct netif *netif, struct pbuf *p)
Michael J. Spencer 1:f5ac63519541 125 {
Michael J. Spencer 1:f5ac63519541 126 struct ethernetif *ethernetif = netif->state;
Michael J. Spencer 1:f5ac63519541 127 struct pbuf *q;
Michael J. Spencer 1:f5ac63519541 128
Michael J. Spencer 1:f5ac63519541 129 initiate transfer();
Michael J. Spencer 1:f5ac63519541 130
Michael J. Spencer 1:f5ac63519541 131 #if ETH_PAD_SIZE
Michael J. Spencer 1:f5ac63519541 132 pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */
Michael J. Spencer 1:f5ac63519541 133 #endif
Michael J. Spencer 1:f5ac63519541 134
Michael J. Spencer 1:f5ac63519541 135 for(q = p; q != NULL; q = q->next) {
Michael J. Spencer 1:f5ac63519541 136 /* Send the data from the pbuf to the interface, one pbuf at a
Michael J. Spencer 1:f5ac63519541 137 time. The size of the data in each pbuf is kept in the ->len
Michael J. Spencer 1:f5ac63519541 138 variable. */
Michael J. Spencer 1:f5ac63519541 139 send data from(q->payload, q->len);
Michael J. Spencer 1:f5ac63519541 140 }
Michael J. Spencer 1:f5ac63519541 141
Michael J. Spencer 1:f5ac63519541 142 signal that packet should be sent();
Michael J. Spencer 1:f5ac63519541 143
Michael J. Spencer 1:f5ac63519541 144 #if ETH_PAD_SIZE
Michael J. Spencer 1:f5ac63519541 145 pbuf_header(p, ETH_PAD_SIZE); /* reclaim the padding word */
Michael J. Spencer 1:f5ac63519541 146 #endif
Michael J. Spencer 1:f5ac63519541 147
Michael J. Spencer 1:f5ac63519541 148 LINK_STATS_INC(link.xmit);
Michael J. Spencer 1:f5ac63519541 149
Michael J. Spencer 1:f5ac63519541 150 return ERR_OK;
Michael J. Spencer 1:f5ac63519541 151 }
Michael J. Spencer 1:f5ac63519541 152
Michael J. Spencer 1:f5ac63519541 153 /**
Michael J. Spencer 1:f5ac63519541 154 * Should allocate a pbuf and transfer the bytes of the incoming
Michael J. Spencer 1:f5ac63519541 155 * packet from the interface into the pbuf.
Michael J. Spencer 1:f5ac63519541 156 *
Michael J. Spencer 1:f5ac63519541 157 * @param netif the lwip network interface structure for this ethernetif
Michael J. Spencer 1:f5ac63519541 158 * @return a pbuf filled with the received packet (including MAC header)
Michael J. Spencer 1:f5ac63519541 159 * NULL on memory error
Michael J. Spencer 1:f5ac63519541 160 */
Michael J. Spencer 1:f5ac63519541 161 static struct pbuf *
Michael J. Spencer 1:f5ac63519541 162 low_level_input(struct netif *netif)
Michael J. Spencer 1:f5ac63519541 163 {
Michael J. Spencer 1:f5ac63519541 164 struct ethernetif *ethernetif = netif->state;
Michael J. Spencer 1:f5ac63519541 165 struct pbuf *p, *q;
Michael J. Spencer 1:f5ac63519541 166 u16_t len;
Michael J. Spencer 1:f5ac63519541 167
Michael J. Spencer 1:f5ac63519541 168 /* Obtain the size of the packet and put it into the "len"
Michael J. Spencer 1:f5ac63519541 169 variable. */
Michael J. Spencer 1:f5ac63519541 170 len = ;
Michael J. Spencer 1:f5ac63519541 171
Michael J. Spencer 1:f5ac63519541 172 #if ETH_PAD_SIZE
Michael J. Spencer 1:f5ac63519541 173 len += ETH_PAD_SIZE; /* allow room for Ethernet padding */
Michael J. Spencer 1:f5ac63519541 174 #endif
Michael J. Spencer 1:f5ac63519541 175
Michael J. Spencer 1:f5ac63519541 176 /* We allocate a pbuf chain of pbufs from the pool. */
Michael J. Spencer 1:f5ac63519541 177 p = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
Michael J. Spencer 1:f5ac63519541 178
Michael J. Spencer 1:f5ac63519541 179 if (p != NULL) {
Michael J. Spencer 1:f5ac63519541 180
Michael J. Spencer 1:f5ac63519541 181 #if ETH_PAD_SIZE
Michael J. Spencer 1:f5ac63519541 182 pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */
Michael J. Spencer 1:f5ac63519541 183 #endif
Michael J. Spencer 1:f5ac63519541 184
Michael J. Spencer 1:f5ac63519541 185 /* We iterate over the pbuf chain until we have read the entire
Michael J. Spencer 1:f5ac63519541 186 * packet into the pbuf. */
Michael J. Spencer 1:f5ac63519541 187 for(q = p; q != NULL; q = q->next) {
Michael J. Spencer 1:f5ac63519541 188 /* Read enough bytes to fill this pbuf in the chain. The
Michael J. Spencer 1:f5ac63519541 189 * available data in the pbuf is given by the q->len
Michael J. Spencer 1:f5ac63519541 190 * variable.
Michael J. Spencer 1:f5ac63519541 191 * This does not necessarily have to be a memcpy, you can also preallocate
Michael J. Spencer 1:f5ac63519541 192 * pbufs for a DMA-enabled MAC and after receiving truncate it to the
Michael J. Spencer 1:f5ac63519541 193 * actually received size. In this case, ensure the tot_len member of the
Michael J. Spencer 1:f5ac63519541 194 * pbuf is the sum of the chained pbuf len members.
Michael J. Spencer 1:f5ac63519541 195 */
Michael J. Spencer 1:f5ac63519541 196 read data into(q->payload, q->len);
Michael J. Spencer 1:f5ac63519541 197 }
Michael J. Spencer 1:f5ac63519541 198 acknowledge that packet has been read();
Michael J. Spencer 1:f5ac63519541 199
Michael J. Spencer 1:f5ac63519541 200 #if ETH_PAD_SIZE
Michael J. Spencer 1:f5ac63519541 201 pbuf_header(p, ETH_PAD_SIZE); /* reclaim the padding word */
Michael J. Spencer 1:f5ac63519541 202 #endif
Michael J. Spencer 1:f5ac63519541 203
Michael J. Spencer 1:f5ac63519541 204 LINK_STATS_INC(link.recv);
Michael J. Spencer 1:f5ac63519541 205 } else {
Michael J. Spencer 1:f5ac63519541 206 drop packet();
Michael J. Spencer 1:f5ac63519541 207 LINK_STATS_INC(link.memerr);
Michael J. Spencer 1:f5ac63519541 208 LINK_STATS_INC(link.drop);
Michael J. Spencer 1:f5ac63519541 209 }
Michael J. Spencer 1:f5ac63519541 210
Michael J. Spencer 1:f5ac63519541 211 return p;
Michael J. Spencer 1:f5ac63519541 212 }
Michael J. Spencer 1:f5ac63519541 213
Michael J. Spencer 1:f5ac63519541 214 /**
Michael J. Spencer 1:f5ac63519541 215 * This function should be called when a packet is ready to be read
Michael J. Spencer 1:f5ac63519541 216 * from the interface. It uses the function low_level_input() that
Michael J. Spencer 1:f5ac63519541 217 * should handle the actual reception of bytes from the network
Michael J. Spencer 1:f5ac63519541 218 * interface. Then the type of the received packet is determined and
Michael J. Spencer 1:f5ac63519541 219 * the appropriate input function is called.
Michael J. Spencer 1:f5ac63519541 220 *
Michael J. Spencer 1:f5ac63519541 221 * @param netif the lwip network interface structure for this ethernetif
Michael J. Spencer 1:f5ac63519541 222 */
Michael J. Spencer 1:f5ac63519541 223 static void
Michael J. Spencer 1:f5ac63519541 224 ethernetif_input(struct netif *netif)
Michael J. Spencer 1:f5ac63519541 225 {
Michael J. Spencer 1:f5ac63519541 226 struct ethernetif *ethernetif;
Michael J. Spencer 1:f5ac63519541 227 struct eth_hdr *ethhdr;
Michael J. Spencer 1:f5ac63519541 228 struct pbuf *p;
Michael J. Spencer 1:f5ac63519541 229
Michael J. Spencer 1:f5ac63519541 230 ethernetif = netif->state;
Michael J. Spencer 1:f5ac63519541 231
Michael J. Spencer 1:f5ac63519541 232 /* move received packet into a new pbuf */
Michael J. Spencer 1:f5ac63519541 233 p = low_level_input(netif);
Michael J. Spencer 1:f5ac63519541 234 /* no packet could be read, silently ignore this */
Michael J. Spencer 1:f5ac63519541 235 if (p == NULL) return;
Michael J. Spencer 1:f5ac63519541 236 /* points to packet payload, which starts with an Ethernet header */
Michael J. Spencer 1:f5ac63519541 237 ethhdr = p->payload;
Michael J. Spencer 1:f5ac63519541 238
Michael J. Spencer 1:f5ac63519541 239 switch (htons(ethhdr->type)) {
Michael J. Spencer 1:f5ac63519541 240 /* IP or ARP packet? */
Michael J. Spencer 1:f5ac63519541 241 case ETHTYPE_IP:
Michael J. Spencer 1:f5ac63519541 242 case ETHTYPE_ARP:
Michael J. Spencer 1:f5ac63519541 243 #if PPPOE_SUPPORT
Michael J. Spencer 1:f5ac63519541 244 /* PPPoE packet? */
Michael J. Spencer 1:f5ac63519541 245 case ETHTYPE_PPPOEDISC:
Michael J. Spencer 1:f5ac63519541 246 case ETHTYPE_PPPOE:
Michael J. Spencer 1:f5ac63519541 247 #endif /* PPPOE_SUPPORT */
Michael J. Spencer 1:f5ac63519541 248 /* full packet send to tcpip_thread to process */
Michael J. Spencer 1:f5ac63519541 249 if (netif->input(p, netif)!=ERR_OK)
Michael J. Spencer 1:f5ac63519541 250 { LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n"));
Michael J. Spencer 1:f5ac63519541 251 pbuf_free(p);
Michael J. Spencer 1:f5ac63519541 252 p = NULL;
Michael J. Spencer 1:f5ac63519541 253 }
Michael J. Spencer 1:f5ac63519541 254 break;
Michael J. Spencer 1:f5ac63519541 255
Michael J. Spencer 1:f5ac63519541 256 default:
Michael J. Spencer 1:f5ac63519541 257 pbuf_free(p);
Michael J. Spencer 1:f5ac63519541 258 p = NULL;
Michael J. Spencer 1:f5ac63519541 259 break;
Michael J. Spencer 1:f5ac63519541 260 }
Michael J. Spencer 1:f5ac63519541 261 }
Michael J. Spencer 1:f5ac63519541 262
Michael J. Spencer 1:f5ac63519541 263 /**
Michael J. Spencer 1:f5ac63519541 264 * Should be called at the beginning of the program to set up the
Michael J. Spencer 1:f5ac63519541 265 * network interface. It calls the function low_level_init() to do the
Michael J. Spencer 1:f5ac63519541 266 * actual setup of the hardware.
Michael J. Spencer 1:f5ac63519541 267 *
Michael J. Spencer 1:f5ac63519541 268 * This function should be passed as a parameter to netif_add().
Michael J. Spencer 1:f5ac63519541 269 *
Michael J. Spencer 1:f5ac63519541 270 * @param netif the lwip network interface structure for this ethernetif
Michael J. Spencer 1:f5ac63519541 271 * @return ERR_OK if the loopif is initialized
Michael J. Spencer 1:f5ac63519541 272 * ERR_MEM if private data couldn't be allocated
Michael J. Spencer 1:f5ac63519541 273 * any other err_t on error
Michael J. Spencer 1:f5ac63519541 274 */
Michael J. Spencer 1:f5ac63519541 275 err_t
Michael J. Spencer 1:f5ac63519541 276 ethernetif_init(struct netif *netif)
Michael J. Spencer 1:f5ac63519541 277 {
Michael J. Spencer 1:f5ac63519541 278 struct ethernetif *ethernetif;
Michael J. Spencer 1:f5ac63519541 279
Michael J. Spencer 1:f5ac63519541 280 LWIP_ASSERT("netif != NULL", (netif != NULL));
Michael J. Spencer 1:f5ac63519541 281
Michael J. Spencer 1:f5ac63519541 282 ethernetif = mem_malloc(sizeof(struct ethernetif));
Michael J. Spencer 1:f5ac63519541 283 if (ethernetif == NULL) {
Michael J. Spencer 1:f5ac63519541 284 LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_init: out of memory\n"));
Michael J. Spencer 1:f5ac63519541 285 return ERR_MEM;
Michael J. Spencer 1:f5ac63519541 286 }
Michael J. Spencer 1:f5ac63519541 287
Michael J. Spencer 1:f5ac63519541 288 #if LWIP_NETIF_HOSTNAME
Michael J. Spencer 1:f5ac63519541 289 /* Initialize interface hostname */
Michael J. Spencer 1:f5ac63519541 290 netif->hostname = "lwip";
Michael J. Spencer 1:f5ac63519541 291 #endif /* LWIP_NETIF_HOSTNAME */
Michael J. Spencer 1:f5ac63519541 292
Michael J. Spencer 1:f5ac63519541 293 /*
Michael J. Spencer 1:f5ac63519541 294 * Initialize the snmp variables and counters inside the struct netif.
Michael J. Spencer 1:f5ac63519541 295 * The last argument should be replaced with your link speed, in units
Michael J. Spencer 1:f5ac63519541 296 * of bits per second.
Michael J. Spencer 1:f5ac63519541 297 */
Michael J. Spencer 1:f5ac63519541 298 NETIF_INIT_SNMP(netif, snmp_ifType_ethernet_csmacd, LINK_SPEED_OF_YOUR_NETIF_IN_BPS);
Michael J. Spencer 1:f5ac63519541 299
Michael J. Spencer 1:f5ac63519541 300 netif->state = ethernetif;
Michael J. Spencer 1:f5ac63519541 301 netif->name[0] = IFNAME0;
Michael J. Spencer 1:f5ac63519541 302 netif->name[1] = IFNAME1;
Michael J. Spencer 1:f5ac63519541 303 /* We directly use etharp_output() here to save a function call.
Michael J. Spencer 1:f5ac63519541 304 * You can instead declare your own function an call etharp_output()
Michael J. Spencer 1:f5ac63519541 305 * from it if you have to do some checks before sending (e.g. if link
Michael J. Spencer 1:f5ac63519541 306 * is available...) */
Michael J. Spencer 1:f5ac63519541 307 netif->output = etharp_output;
Michael J. Spencer 1:f5ac63519541 308 netif->linkoutput = low_level_output;
Michael J. Spencer 1:f5ac63519541 309
Michael J. Spencer 1:f5ac63519541 310 ethernetif->ethaddr = (struct eth_addr *)&(netif->hwaddr[0]);
Michael J. Spencer 1:f5ac63519541 311
Michael J. Spencer 1:f5ac63519541 312 /* initialize the hardware */
Michael J. Spencer 1:f5ac63519541 313 low_level_init(netif);
Michael J. Spencer 1:f5ac63519541 314
Michael J. Spencer 1:f5ac63519541 315 return ERR_OK;
Michael J. Spencer 1:f5ac63519541 316 }
Michael J. Spencer 1:f5ac63519541 317
Michael J. Spencer 1:f5ac63519541 318 #endif /* 0 */