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authorJosh Blum <josh@joshknows.com>2010-12-22 19:19:14 -0800
committerJosh Blum <josh@joshknows.com>2010-12-22 19:19:14 -0800
commit22ed61f97815856bf74cec25ae6bca88bfbe5f44 (patch)
tree7d87d49b46f9507ff10486097e6d79e4bee4cb81 /firmware/microblaze/lwip/lwip-1.3.1/src/netif/ethernetif.c
parent71fc99d006f2347a356c5339905593f64ff902ec (diff)
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zpu: renamed the directory for the usrp2 fw to zpu to reflect the cpu type
Diffstat (limited to 'firmware/microblaze/lwip/lwip-1.3.1/src/netif/ethernetif.c')
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diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ethernetif.c b/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ethernetif.c
deleted file mode 100644
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--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ethernetif.c
+++ /dev/null
@@ -1,313 +0,0 @@
-/**
- * @file
- * Ethernet Interface Skeleton
- *
- */
-
-/*
- * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
- * 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 lwIP TCP/IP stack.
- *
- * Author: Adam Dunkels <adam@sics.se>
- *
- */
-
-/*
- * This file is a skeleton for developing Ethernet network interface
- * drivers for lwIP. Add code to the low_level functions and do a
- * search-and-replace for the word "ethernetif" to replace it with
- * something that better describes your network interface.
- */
-
-#include "lwip/opt.h"
-
-#if 0 /* don't build, this is only a skeleton, see previous comment */
-
-#include "lwip/def.h"
-#include "lwip/mem.h"
-#include "lwip/pbuf.h"
-#include "lwip/sys.h"
-#include <lwip/stats.h>
-#include <lwip/snmp.h>
-#include "netif/etharp.h"
-#include "netif/ppp_oe.h"
-
-/* Define those to better describe your network interface. */
-#define IFNAME0 'e'
-#define IFNAME1 'n'
-
-/**
- * Helper struct to hold private data used to operate your ethernet interface.
- * Keeping the ethernet address of the MAC in this struct is not necessary
- * as it is already kept in the struct netif.
- * But this is only an example, anyway...
- */
-struct ethernetif {
- struct eth_addr *ethaddr;
- /* Add whatever per-interface state that is needed here. */
-};
-
-/* Forward declarations. */
-static void ethernetif_input(struct netif *netif);
-
-/**
- * In this function, the hardware should be initialized.
- * Called from ethernetif_init().
- *
- * @param netif the already initialized lwip network interface structure
- * for this ethernetif
- */
-static void
-low_level_init(struct netif *netif)
-{
- struct ethernetif *ethernetif = netif->state;
-
- /* set MAC hardware address length */
- netif->hwaddr_len = ETHARP_HWADDR_LEN;
-
- /* set MAC hardware address */
- netif->hwaddr[0] = ;
- ...
- netif->hwaddr[5] = ;
-
- /* maximum transfer unit */
- netif->mtu = 1500;
-
- /* device capabilities */
- /* don't set NETIF_FLAG_ETHARP if this device is not an ethernet one */
- netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP;
-
- /* Do whatever else is needed to initialize interface. */
-}
-
-/**
- * This function should do the actual transmission of the packet. The packet is
- * contained in the pbuf that is passed to the function. This pbuf
- * might be chained.
- *
- * @param netif the lwip network interface structure for this ethernetif
- * @param p the MAC packet to send (e.g. IP packet including MAC addresses and type)
- * @return ERR_OK if the packet could be sent
- * an err_t value if the packet couldn't be sent
- *
- * @note Returning ERR_MEM here if a DMA queue of your MAC is full can lead to
- * strange results. You might consider waiting for space in the DMA queue
- * to become availale since the stack doesn't retry to send a packet
- * dropped because of memory failure (except for the TCP timers).
- */
-
-static err_t
-low_level_output(struct netif *netif, struct pbuf *p)
-{
- struct ethernetif *ethernetif = netif->state;
- struct pbuf *q;
-
- initiate transfer();
-
-#if ETH_PAD_SIZE
- pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */
-#endif
-
- for(q = p; q != NULL; q = q->next) {
- /* Send the data from the pbuf to the interface, one pbuf at a
- time. The size of the data in each pbuf is kept in the ->len
- variable. */
- send data from(q->payload, q->len);
- }
-
- signal that packet should be sent();
-
-#if ETH_PAD_SIZE
- pbuf_header(p, ETH_PAD_SIZE); /* reclaim the padding word */
-#endif
-
- LINK_STATS_INC(link.xmit);
-
- return ERR_OK;
-}
-
-/**
- * Should allocate a pbuf and transfer the bytes of the incoming
- * packet from the interface into the pbuf.
- *
- * @param netif the lwip network interface structure for this ethernetif
- * @return a pbuf filled with the received packet (including MAC header)
- * NULL on memory error
- */
-static struct pbuf *
-low_level_input(struct netif *netif)
-{
- struct ethernetif *ethernetif = netif->state;
- struct pbuf *p, *q;
- u16_t len;
-
- /* Obtain the size of the packet and put it into the "len"
- variable. */
- len = ;
-
-#if ETH_PAD_SIZE
- len += ETH_PAD_SIZE; /* allow room for Ethernet padding */
-#endif
-
- /* We allocate a pbuf chain of pbufs from the pool. */
- p = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
-
- if (p != NULL) {
-
-#if ETH_PAD_SIZE
- pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */
-#endif
-
- /* We iterate over the pbuf chain until we have read the entire
- * packet into the pbuf. */
- for(q = p; q != NULL; q = q->next) {
- /* Read enough bytes to fill this pbuf in the chain. The
- * available data in the pbuf is given by the q->len
- * variable. */
- read data into(q->payload, q->len);
- }
- acknowledge that packet has been read();
-
-#if ETH_PAD_SIZE
- pbuf_header(p, ETH_PAD_SIZE); /* reclaim the padding word */
-#endif
-
- LINK_STATS_INC(link.recv);
- } else {
- drop packet();
- LINK_STATS_INC(link.memerr);
- LINK_STATS_INC(link.drop);
- }
-
- return p;
-}
-
-/**
- * This function should be called when a packet is ready to be read
- * from the interface. It uses the function low_level_input() that
- * should handle the actual reception of bytes from the network
- * interface. Then the type of the received packet is determined and
- * the appropriate input function is called.
- *
- * @param netif the lwip network interface structure for this ethernetif
- */
-static void
-ethernetif_input(struct netif *netif)
-{
- struct ethernetif *ethernetif;
- struct eth_hdr *ethhdr;
- struct pbuf *p;
-
- ethernetif = netif->state;
-
- /* move received packet into a new pbuf */
- p = low_level_input(netif);
- /* no packet could be read, silently ignore this */
- if (p == NULL) return;
- /* points to packet payload, which starts with an Ethernet header */
- ethhdr = p->payload;
-
- switch (htons(ethhdr->type)) {
- /* IP or ARP packet? */
- case ETHTYPE_IP:
- case ETHTYPE_ARP:
-#if PPPOE_SUPPORT
- /* PPPoE packet? */
- case ETHTYPE_PPPOEDISC:
- case ETHTYPE_PPPOE:
-#endif /* PPPOE_SUPPORT */
- /* full packet send to tcpip_thread to process */
- if (netif->input(p, netif)!=ERR_OK)
- { LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n"));
- pbuf_free(p);
- p = NULL;
- }
- break;
-
- default:
- pbuf_free(p);
- p = NULL;
- break;
- }
-}
-
-/**
- * Should be called at the beginning of the program to set up the
- * network interface. It calls the function low_level_init() to do the
- * actual setup of the hardware.
- *
- * This function should be passed as a parameter to netif_add().
- *
- * @param netif the lwip network interface structure for this ethernetif
- * @return ERR_OK if the loopif is initialized
- * ERR_MEM if private data couldn't be allocated
- * any other err_t on error
- */
-err_t
-ethernetif_init(struct netif *netif)
-{
- struct ethernetif *ethernetif;
-
- LWIP_ASSERT("netif != NULL", (netif != NULL));
-
- ethernetif = mem_malloc(sizeof(struct ethernetif));
- if (ethernetif == NULL) {
- LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_init: out of memory\n"));
- return ERR_MEM;
- }
-
-#if LWIP_NETIF_HOSTNAME
- /* Initialize interface hostname */
- netif->hostname = "lwip";
-#endif /* LWIP_NETIF_HOSTNAME */
-
- /*
- * Initialize the snmp variables and counters inside the struct netif.
- * The last argument should be replaced with your link speed, in units
- * of bits per second.
- */
- NETIF_INIT_SNMP(netif, snmp_ifType_ethernet_csmacd, LINK_SPEED_OF_YOUR_NETIF_IN_BPS);
-
- netif->state = ethernetif;
- netif->name[0] = IFNAME0;
- netif->name[1] = IFNAME1;
- /* We directly use etharp_output() here to save a function call.
- * You can instead declare your own function an call etharp_output()
- * from it if you have to do some checks before sending (e.g. if link
- * is available...) */
- netif->output = etharp_output;
- netif->linkoutput = low_level_output;
-
- ethernetif->ethaddr = (struct eth_addr *)&(netif->hwaddr[0]);
-
- /* initialize the hardware */
- low_level_init(netif);
-
- return ERR_OK;
-}
-
-#endif /* 0 */