Ilya I
Example program with HTTPServer and sensor data streaming over TCPSockets, using Donatien Garnier's Net APIs and services code on top of LWIP. Files StreamServer.h and .cpp encapsulate streaming over TCPSockets. Broadcast is done by sendToAll(), and all incoming data is echoed back to the client. Echo code can be replaced with some remote control of the streaming interface. See main() that shows how to periodically send some data to all subscribed clients. To subscribe, a client should open a socket at <mbed_ip> port 123. I used few lines in TCL code to set up a quick sink for the data. HTTP files are served on port 80 concurrently to the streaming.
lwip/netif/ethernetif.c@0:e614f7875b60, 2010-06-12 (annotated)
- Committer:
- iva2k
- Date:
- Sat Jun 12 06:01:50 2010 +0000
- Revision:
- 0:e614f7875b60
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| iva2k | 0:e614f7875b60 | 1 | /** |
| iva2k | 0:e614f7875b60 | 2 | * @file |
| iva2k | 0:e614f7875b60 | 3 | * Ethernet Interface Skeleton |
| iva2k | 0:e614f7875b60 | 4 | * |
| iva2k | 0:e614f7875b60 | 5 | */ |
| iva2k | 0:e614f7875b60 | 6 | |
| iva2k | 0:e614f7875b60 | 7 | /* |
| iva2k | 0:e614f7875b60 | 8 | * Copyright (c) 2001-2004 Swedish Institute of Computer Science. |
| iva2k | 0:e614f7875b60 | 9 | * All rights reserved. |
| iva2k | 0:e614f7875b60 | 10 | * |
| iva2k | 0:e614f7875b60 | 11 | * Redistribution and use in source and binary forms, with or without modification, |
| iva2k | 0:e614f7875b60 | 12 | * are permitted provided that the following conditions are met: |
| iva2k | 0:e614f7875b60 | 13 | * |
| iva2k | 0:e614f7875b60 | 14 | * 1. Redistributions of source code must retain the above copyright notice, |
| iva2k | 0:e614f7875b60 | 15 | * this list of conditions and the following disclaimer. |
| iva2k | 0:e614f7875b60 | 16 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| iva2k | 0:e614f7875b60 | 17 | * this list of conditions and the following disclaimer in the documentation |
| iva2k | 0:e614f7875b60 | 18 | * and/or other materials provided with the distribution. |
| iva2k | 0:e614f7875b60 | 19 | * 3. The name of the author may not be used to endorse or promote products |
| iva2k | 0:e614f7875b60 | 20 | * derived from this software without specific prior written permission. |
| iva2k | 0:e614f7875b60 | 21 | * |
| iva2k | 0:e614f7875b60 | 22 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| iva2k | 0:e614f7875b60 | 23 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| iva2k | 0:e614f7875b60 | 24 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
| iva2k | 0:e614f7875b60 | 25 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| iva2k | 0:e614f7875b60 | 26 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
| iva2k | 0:e614f7875b60 | 27 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| iva2k | 0:e614f7875b60 | 28 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| iva2k | 0:e614f7875b60 | 29 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| iva2k | 0:e614f7875b60 | 30 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY |
| iva2k | 0:e614f7875b60 | 31 | * OF SUCH DAMAGE. |
| iva2k | 0:e614f7875b60 | 32 | * |
| iva2k | 0:e614f7875b60 | 33 | * This file is part of the lwIP TCP/IP stack. |
| iva2k | 0:e614f7875b60 | 34 | * |
| iva2k | 0:e614f7875b60 | 35 | * Author: Adam Dunkels <adam@sics.se> |
| iva2k | 0:e614f7875b60 | 36 | * |
| iva2k | 0:e614f7875b60 | 37 | */ |
| iva2k | 0:e614f7875b60 | 38 | |
| iva2k | 0:e614f7875b60 | 39 | /* |
| iva2k | 0:e614f7875b60 | 40 | * This file is a skeleton for developing Ethernet network interface |
| iva2k | 0:e614f7875b60 | 41 | * drivers for lwIP. Add code to the low_level functions and do a |
| iva2k | 0:e614f7875b60 | 42 | * search-and-replace for the word "ethernetif" to replace it with |
| iva2k | 0:e614f7875b60 | 43 | * something that better describes your network interface. |
| iva2k | 0:e614f7875b60 | 44 | */ |
| iva2k | 0:e614f7875b60 | 45 | |
| iva2k | 0:e614f7875b60 | 46 | #include "lwip/opt.h" |
| iva2k | 0:e614f7875b60 | 47 | |
| iva2k | 0:e614f7875b60 | 48 | #if 0 /* don't build, this is only a skeleton, see previous comment */ |
| iva2k | 0:e614f7875b60 | 49 | |
| iva2k | 0:e614f7875b60 | 50 | #include "lwip/def.h" |
| iva2k | 0:e614f7875b60 | 51 | #include "lwip/mem.h" |
| iva2k | 0:e614f7875b60 | 52 | #include "lwip/pbuf.h" |
| iva2k | 0:e614f7875b60 | 53 | #include "lwip/sys.h" |
| iva2k | 0:e614f7875b60 | 54 | #include <lwip/stats.h> |
| iva2k | 0:e614f7875b60 | 55 | #include <lwip/snmp.h> |
| iva2k | 0:e614f7875b60 | 56 | #include "netif/etharp.h" |
| iva2k | 0:e614f7875b60 | 57 | #include "netif/ppp_oe.h" |
| iva2k | 0:e614f7875b60 | 58 | |
| iva2k | 0:e614f7875b60 | 59 | /* Define those to better describe your network interface. */ |
| iva2k | 0:e614f7875b60 | 60 | #define IFNAME0 'e' |
| iva2k | 0:e614f7875b60 | 61 | #define IFNAME1 'n' |
| iva2k | 0:e614f7875b60 | 62 | |
| iva2k | 0:e614f7875b60 | 63 | /** |
| iva2k | 0:e614f7875b60 | 64 | * Helper struct to hold private data used to operate your ethernet interface. |
| iva2k | 0:e614f7875b60 | 65 | * Keeping the ethernet address of the MAC in this struct is not necessary |
| iva2k | 0:e614f7875b60 | 66 | * as it is already kept in the struct netif. |
| iva2k | 0:e614f7875b60 | 67 | * But this is only an example, anyway... |
| iva2k | 0:e614f7875b60 | 68 | */ |
| iva2k | 0:e614f7875b60 | 69 | struct ethernetif { |
| iva2k | 0:e614f7875b60 | 70 | struct eth_addr *ethaddr; |
| iva2k | 0:e614f7875b60 | 71 | /* Add whatever per-interface state that is needed here. */ |
| iva2k | 0:e614f7875b60 | 72 | }; |
| iva2k | 0:e614f7875b60 | 73 | |
| iva2k | 0:e614f7875b60 | 74 | /* Forward declarations. */ |
| iva2k | 0:e614f7875b60 | 75 | static void ethernetif_input(struct netif *netif); |
| iva2k | 0:e614f7875b60 | 76 | |
| iva2k | 0:e614f7875b60 | 77 | /** |
| iva2k | 0:e614f7875b60 | 78 | * In this function, the hardware should be initialized. |
| iva2k | 0:e614f7875b60 | 79 | * Called from ethernetif_init(). |
| iva2k | 0:e614f7875b60 | 80 | * |
| iva2k | 0:e614f7875b60 | 81 | * @param netif the already initialized lwip network interface structure |
| iva2k | 0:e614f7875b60 | 82 | * for this ethernetif |
| iva2k | 0:e614f7875b60 | 83 | */ |
| iva2k | 0:e614f7875b60 | 84 | static void |
| iva2k | 0:e614f7875b60 | 85 | low_level_init(struct netif *netif) |
| iva2k | 0:e614f7875b60 | 86 | { |
| iva2k | 0:e614f7875b60 | 87 | struct ethernetif *ethernetif = netif->state; |
| iva2k | 0:e614f7875b60 | 88 | |
| iva2k | 0:e614f7875b60 | 89 | /* set MAC hardware address length */ |
| iva2k | 0:e614f7875b60 | 90 | netif->hwaddr_len = ETHARP_HWADDR_LEN; |
| iva2k | 0:e614f7875b60 | 91 | |
| iva2k | 0:e614f7875b60 | 92 | /* set MAC hardware address */ |
| iva2k | 0:e614f7875b60 | 93 | netif->hwaddr[0] = ; |
| iva2k | 0:e614f7875b60 | 94 | ... |
| iva2k | 0:e614f7875b60 | 95 | netif->hwaddr[5] = ; |
| iva2k | 0:e614f7875b60 | 96 | |
| iva2k | 0:e614f7875b60 | 97 | /* maximum transfer unit */ |
| iva2k | 0:e614f7875b60 | 98 | netif->mtu = 1500; |
| iva2k | 0:e614f7875b60 | 99 | |
| iva2k | 0:e614f7875b60 | 100 | /* device capabilities */ |
| iva2k | 0:e614f7875b60 | 101 | /* don't set NETIF_FLAG_ETHARP if this device is not an ethernet one */ |
| iva2k | 0:e614f7875b60 | 102 | netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP; |
| iva2k | 0:e614f7875b60 | 103 | |
| iva2k | 0:e614f7875b60 | 104 | /* Do whatever else is needed to initialize interface. */ |
| iva2k | 0:e614f7875b60 | 105 | } |
| iva2k | 0:e614f7875b60 | 106 | |
| iva2k | 0:e614f7875b60 | 107 | /** |
| iva2k | 0:e614f7875b60 | 108 | * This function should do the actual transmission of the packet. The packet is |
| iva2k | 0:e614f7875b60 | 109 | * contained in the pbuf that is passed to the function. This pbuf |
| iva2k | 0:e614f7875b60 | 110 | * might be chained. |
| iva2k | 0:e614f7875b60 | 111 | * |
| iva2k | 0:e614f7875b60 | 112 | * @param netif the lwip network interface structure for this ethernetif |
| iva2k | 0:e614f7875b60 | 113 | * @param p the MAC packet to send (e.g. IP packet including MAC addresses and type) |
| iva2k | 0:e614f7875b60 | 114 | * @return ERR_OK if the packet could be sent |
| iva2k | 0:e614f7875b60 | 115 | * an err_t value if the packet couldn't be sent |
| iva2k | 0:e614f7875b60 | 116 | * |
| iva2k | 0:e614f7875b60 | 117 | * @note Returning ERR_MEM here if a DMA queue of your MAC is full can lead to |
| iva2k | 0:e614f7875b60 | 118 | * strange results. You might consider waiting for space in the DMA queue |
| iva2k | 0:e614f7875b60 | 119 | * to become availale since the stack doesn't retry to send a packet |
| iva2k | 0:e614f7875b60 | 120 | * dropped because of memory failure (except for the TCP timers). |
| iva2k | 0:e614f7875b60 | 121 | */ |
| iva2k | 0:e614f7875b60 | 122 | |
| iva2k | 0:e614f7875b60 | 123 | static err_t |
| iva2k | 0:e614f7875b60 | 124 | low_level_output(struct netif *netif, struct pbuf *p) |
| iva2k | 0:e614f7875b60 | 125 | { |
| iva2k | 0:e614f7875b60 | 126 | struct ethernetif *ethernetif = netif->state; |
| iva2k | 0:e614f7875b60 | 127 | struct pbuf *q; |
| iva2k | 0:e614f7875b60 | 128 | |
| iva2k | 0:e614f7875b60 | 129 | initiate transfer(); |
| iva2k | 0:e614f7875b60 | 130 | |
| iva2k | 0:e614f7875b60 | 131 | #if ETH_PAD_SIZE |
| iva2k | 0:e614f7875b60 | 132 | pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */ |
| iva2k | 0:e614f7875b60 | 133 | #endif |
| iva2k | 0:e614f7875b60 | 134 | |
| iva2k | 0:e614f7875b60 | 135 | for(q = p; q != NULL; q = q->next) { |
| iva2k | 0:e614f7875b60 | 136 | /* Send the data from the pbuf to the interface, one pbuf at a |
| iva2k | 0:e614f7875b60 | 137 | time. The size of the data in each pbuf is kept in the ->len |
| iva2k | 0:e614f7875b60 | 138 | variable. */ |
| iva2k | 0:e614f7875b60 | 139 | send data from(q->payload, q->len); |
| iva2k | 0:e614f7875b60 | 140 | } |
| iva2k | 0:e614f7875b60 | 141 | |
| iva2k | 0:e614f7875b60 | 142 | signal that packet should be sent(); |
| iva2k | 0:e614f7875b60 | 143 | |
| iva2k | 0:e614f7875b60 | 144 | #if ETH_PAD_SIZE |
| iva2k | 0:e614f7875b60 | 145 | pbuf_header(p, ETH_PAD_SIZE); /* reclaim the padding word */ |
| iva2k | 0:e614f7875b60 | 146 | #endif |
| iva2k | 0:e614f7875b60 | 147 | |
| iva2k | 0:e614f7875b60 | 148 | LINK_STATS_INC(link.xmit); |
| iva2k | 0:e614f7875b60 | 149 | |
| iva2k | 0:e614f7875b60 | 150 | return ERR_OK; |
| iva2k | 0:e614f7875b60 | 151 | } |
| iva2k | 0:e614f7875b60 | 152 | |
| iva2k | 0:e614f7875b60 | 153 | /** |
| iva2k | 0:e614f7875b60 | 154 | * Should allocate a pbuf and transfer the bytes of the incoming |
| iva2k | 0:e614f7875b60 | 155 | * packet from the interface into the pbuf. |
| iva2k | 0:e614f7875b60 | 156 | * |
| iva2k | 0:e614f7875b60 | 157 | * @param netif the lwip network interface structure for this ethernetif |
| iva2k | 0:e614f7875b60 | 158 | * @return a pbuf filled with the received packet (including MAC header) |
| iva2k | 0:e614f7875b60 | 159 | * NULL on memory error |
| iva2k | 0:e614f7875b60 | 160 | */ |
| iva2k | 0:e614f7875b60 | 161 | static struct pbuf * |
| iva2k | 0:e614f7875b60 | 162 | low_level_input(struct netif *netif) |
| iva2k | 0:e614f7875b60 | 163 | { |
| iva2k | 0:e614f7875b60 | 164 | struct ethernetif *ethernetif = netif->state; |
| iva2k | 0:e614f7875b60 | 165 | struct pbuf *p, *q; |
| iva2k | 0:e614f7875b60 | 166 | u16_t len; |
| iva2k | 0:e614f7875b60 | 167 | |
| iva2k | 0:e614f7875b60 | 168 | /* Obtain the size of the packet and put it into the "len" |
| iva2k | 0:e614f7875b60 | 169 | variable. */ |
| iva2k | 0:e614f7875b60 | 170 | len = ; |
| iva2k | 0:e614f7875b60 | 171 | |
| iva2k | 0:e614f7875b60 | 172 | #if ETH_PAD_SIZE |
| iva2k | 0:e614f7875b60 | 173 | len += ETH_PAD_SIZE; /* allow room for Ethernet padding */ |
| iva2k | 0:e614f7875b60 | 174 | #endif |
| iva2k | 0:e614f7875b60 | 175 | |
| iva2k | 0:e614f7875b60 | 176 | /* We allocate a pbuf chain of pbufs from the pool. */ |
| iva2k | 0:e614f7875b60 | 177 | p = pbuf_alloc(PBUF_RAW, len, PBUF_POOL); |
| iva2k | 0:e614f7875b60 | 178 | |
| iva2k | 0:e614f7875b60 | 179 | if (p != NULL) { |
| iva2k | 0:e614f7875b60 | 180 | |
| iva2k | 0:e614f7875b60 | 181 | #if ETH_PAD_SIZE |
| iva2k | 0:e614f7875b60 | 182 | pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */ |
| iva2k | 0:e614f7875b60 | 183 | #endif |
| iva2k | 0:e614f7875b60 | 184 | |
| iva2k | 0:e614f7875b60 | 185 | /* We iterate over the pbuf chain until we have read the entire |
| iva2k | 0:e614f7875b60 | 186 | * packet into the pbuf. */ |
| iva2k | 0:e614f7875b60 | 187 | for(q = p; q != NULL; q = q->next) { |
| iva2k | 0:e614f7875b60 | 188 | /* Read enough bytes to fill this pbuf in the chain. The |
| iva2k | 0:e614f7875b60 | 189 | * available data in the pbuf is given by the q->len |
| iva2k | 0:e614f7875b60 | 190 | * variable. |
| iva2k | 0:e614f7875b60 | 191 | * This does not necessarily have to be a memcpy, you can also preallocate |
| iva2k | 0:e614f7875b60 | 192 | * pbufs for a DMA-enabled MAC and after receiving truncate it to the |
| iva2k | 0:e614f7875b60 | 193 | * actually received size. In this case, ensure the tot_len member of the |
| iva2k | 0:e614f7875b60 | 194 | * pbuf is the sum of the chained pbuf len members. |
| iva2k | 0:e614f7875b60 | 195 | */ |
| iva2k | 0:e614f7875b60 | 196 | read data into(q->payload, q->len); |
| iva2k | 0:e614f7875b60 | 197 | } |
| iva2k | 0:e614f7875b60 | 198 | acknowledge that packet has been read(); |
| iva2k | 0:e614f7875b60 | 199 | |
| iva2k | 0:e614f7875b60 | 200 | #if ETH_PAD_SIZE |
| iva2k | 0:e614f7875b60 | 201 | pbuf_header(p, ETH_PAD_SIZE); /* reclaim the padding word */ |
| iva2k | 0:e614f7875b60 | 202 | #endif |
| iva2k | 0:e614f7875b60 | 203 | |
| iva2k | 0:e614f7875b60 | 204 | LINK_STATS_INC(link.recv); |
| iva2k | 0:e614f7875b60 | 205 | } else { |
| iva2k | 0:e614f7875b60 | 206 | drop packet(); |
| iva2k | 0:e614f7875b60 | 207 | LINK_STATS_INC(link.memerr); |
| iva2k | 0:e614f7875b60 | 208 | LINK_STATS_INC(link.drop); |
| iva2k | 0:e614f7875b60 | 209 | } |
| iva2k | 0:e614f7875b60 | 210 | |
| iva2k | 0:e614f7875b60 | 211 | return p; |
| iva2k | 0:e614f7875b60 | 212 | } |
| iva2k | 0:e614f7875b60 | 213 | |
| iva2k | 0:e614f7875b60 | 214 | /** |
| iva2k | 0:e614f7875b60 | 215 | * This function should be called when a packet is ready to be read |
| iva2k | 0:e614f7875b60 | 216 | * from the interface. It uses the function low_level_input() that |
| iva2k | 0:e614f7875b60 | 217 | * should handle the actual reception of bytes from the network |
| iva2k | 0:e614f7875b60 | 218 | * interface. Then the type of the received packet is determined and |
| iva2k | 0:e614f7875b60 | 219 | * the appropriate input function is called. |
| iva2k | 0:e614f7875b60 | 220 | * |
| iva2k | 0:e614f7875b60 | 221 | * @param netif the lwip network interface structure for this ethernetif |
| iva2k | 0:e614f7875b60 | 222 | */ |
| iva2k | 0:e614f7875b60 | 223 | static void |
| iva2k | 0:e614f7875b60 | 224 | ethernetif_input(struct netif *netif) |
| iva2k | 0:e614f7875b60 | 225 | { |
| iva2k | 0:e614f7875b60 | 226 | struct ethernetif *ethernetif; |
| iva2k | 0:e614f7875b60 | 227 | struct eth_hdr *ethhdr; |
| iva2k | 0:e614f7875b60 | 228 | struct pbuf *p; |
| iva2k | 0:e614f7875b60 | 229 | |
| iva2k | 0:e614f7875b60 | 230 | ethernetif = netif->state; |
| iva2k | 0:e614f7875b60 | 231 | |
| iva2k | 0:e614f7875b60 | 232 | /* move received packet into a new pbuf */ |
| iva2k | 0:e614f7875b60 | 233 | p = low_level_input(netif); |
| iva2k | 0:e614f7875b60 | 234 | /* no packet could be read, silently ignore this */ |
| iva2k | 0:e614f7875b60 | 235 | if (p == NULL) return; |
| iva2k | 0:e614f7875b60 | 236 | /* points to packet payload, which starts with an Ethernet header */ |
| iva2k | 0:e614f7875b60 | 237 | ethhdr = p->payload; |
| iva2k | 0:e614f7875b60 | 238 | |
| iva2k | 0:e614f7875b60 | 239 | switch (htons(ethhdr->type)) { |
| iva2k | 0:e614f7875b60 | 240 | /* IP or ARP packet? */ |
| iva2k | 0:e614f7875b60 | 241 | case ETHTYPE_IP: |
| iva2k | 0:e614f7875b60 | 242 | case ETHTYPE_ARP: |
| iva2k | 0:e614f7875b60 | 243 | #if PPPOE_SUPPORT |
| iva2k | 0:e614f7875b60 | 244 | /* PPPoE packet? */ |
| iva2k | 0:e614f7875b60 | 245 | case ETHTYPE_PPPOEDISC: |
| iva2k | 0:e614f7875b60 | 246 | case ETHTYPE_PPPOE: |
| iva2k | 0:e614f7875b60 | 247 | #endif /* PPPOE_SUPPORT */ |
| iva2k | 0:e614f7875b60 | 248 | /* full packet send to tcpip_thread to process */ |
| iva2k | 0:e614f7875b60 | 249 | if (netif->input(p, netif)!=ERR_OK) |
| iva2k | 0:e614f7875b60 | 250 | { LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n")); |
| iva2k | 0:e614f7875b60 | 251 | pbuf_free(p); |
| iva2k | 0:e614f7875b60 | 252 | p = NULL; |
| iva2k | 0:e614f7875b60 | 253 | } |
| iva2k | 0:e614f7875b60 | 254 | break; |
| iva2k | 0:e614f7875b60 | 255 | |
| iva2k | 0:e614f7875b60 | 256 | default: |
| iva2k | 0:e614f7875b60 | 257 | pbuf_free(p); |
| iva2k | 0:e614f7875b60 | 258 | p = NULL; |
| iva2k | 0:e614f7875b60 | 259 | break; |
| iva2k | 0:e614f7875b60 | 260 | } |
| iva2k | 0:e614f7875b60 | 261 | } |
| iva2k | 0:e614f7875b60 | 262 | |
| iva2k | 0:e614f7875b60 | 263 | /** |
| iva2k | 0:e614f7875b60 | 264 | * Should be called at the beginning of the program to set up the |
| iva2k | 0:e614f7875b60 | 265 | * network interface. It calls the function low_level_init() to do the |
| iva2k | 0:e614f7875b60 | 266 | * actual setup of the hardware. |
| iva2k | 0:e614f7875b60 | 267 | * |
| iva2k | 0:e614f7875b60 | 268 | * This function should be passed as a parameter to netif_add(). |
| iva2k | 0:e614f7875b60 | 269 | * |
| iva2k | 0:e614f7875b60 | 270 | * @param netif the lwip network interface structure for this ethernetif |
| iva2k | 0:e614f7875b60 | 271 | * @return ERR_OK if the loopif is initialized |
| iva2k | 0:e614f7875b60 | 272 | * ERR_MEM if private data couldn't be allocated |
| iva2k | 0:e614f7875b60 | 273 | * any other err_t on error |
| iva2k | 0:e614f7875b60 | 274 | */ |
| iva2k | 0:e614f7875b60 | 275 | err_t |
| iva2k | 0:e614f7875b60 | 276 | ethernetif_init(struct netif *netif) |
| iva2k | 0:e614f7875b60 | 277 | { |
| iva2k | 0:e614f7875b60 | 278 | struct ethernetif *ethernetif; |
| iva2k | 0:e614f7875b60 | 279 | |
| iva2k | 0:e614f7875b60 | 280 | LWIP_ASSERT("netif != NULL", (netif != NULL)); |
| iva2k | 0:e614f7875b60 | 281 | |
| iva2k | 0:e614f7875b60 | 282 | ethernetif = mem_malloc(sizeof(struct ethernetif)); |
| iva2k | 0:e614f7875b60 | 283 | if (ethernetif == NULL) { |
| iva2k | 0:e614f7875b60 | 284 | LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_init: out of memory\n")); |
| iva2k | 0:e614f7875b60 | 285 | return ERR_MEM; |
| iva2k | 0:e614f7875b60 | 286 | } |
| iva2k | 0:e614f7875b60 | 287 | |
| iva2k | 0:e614f7875b60 | 288 | #if LWIP_NETIF_HOSTNAME |
| iva2k | 0:e614f7875b60 | 289 | /* Initialize interface hostname */ |
| iva2k | 0:e614f7875b60 | 290 | netif->hostname = "lwip"; |
| iva2k | 0:e614f7875b60 | 291 | #endif /* LWIP_NETIF_HOSTNAME */ |
| iva2k | 0:e614f7875b60 | 292 | |
| iva2k | 0:e614f7875b60 | 293 | /* |
| iva2k | 0:e614f7875b60 | 294 | * Initialize the snmp variables and counters inside the struct netif. |
| iva2k | 0:e614f7875b60 | 295 | * The last argument should be replaced with your link speed, in units |
| iva2k | 0:e614f7875b60 | 296 | * of bits per second. |
| iva2k | 0:e614f7875b60 | 297 | */ |
| iva2k | 0:e614f7875b60 | 298 | NETIF_INIT_SNMP(netif, snmp_ifType_ethernet_csmacd, LINK_SPEED_OF_YOUR_NETIF_IN_BPS); |
| iva2k | 0:e614f7875b60 | 299 | |
| iva2k | 0:e614f7875b60 | 300 | netif->state = ethernetif; |
| iva2k | 0:e614f7875b60 | 301 | netif->name[0] = IFNAME0; |
| iva2k | 0:e614f7875b60 | 302 | netif->name[1] = IFNAME1; |
| iva2k | 0:e614f7875b60 | 303 | /* We directly use etharp_output() here to save a function call. |
| iva2k | 0:e614f7875b60 | 304 | * You can instead declare your own function an call etharp_output() |
| iva2k | 0:e614f7875b60 | 305 | * from it if you have to do some checks before sending (e.g. if link |
| iva2k | 0:e614f7875b60 | 306 | * is available...) */ |
| iva2k | 0:e614f7875b60 | 307 | netif->output = etharp_output; |
| iva2k | 0:e614f7875b60 | 308 | netif->linkoutput = low_level_output; |
| iva2k | 0:e614f7875b60 | 309 | |
| iva2k | 0:e614f7875b60 | 310 | ethernetif->ethaddr = (struct eth_addr *)&(netif->hwaddr[0]); |
| iva2k | 0:e614f7875b60 | 311 | |
| iva2k | 0:e614f7875b60 | 312 | /* initialize the hardware */ |
| iva2k | 0:e614f7875b60 | 313 | low_level_init(netif); |
| iva2k | 0:e614f7875b60 | 314 | |
| iva2k | 0:e614f7875b60 | 315 | return ERR_OK; |
| iva2k | 0:e614f7875b60 | 316 | } |
| iva2k | 0:e614f7875b60 | 317 | |
| iva2k | 0:e614f7875b60 | 318 | #endif /* 0 */ |