138 lines
3.9 KiB
C
138 lines
3.9 KiB
C
/**
|
|
* @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 <minix/sysutil.h>
|
|
#include <minix/netsock.h>
|
|
|
|
#include "lwip/opt.h"
|
|
|
|
#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 <net/gen/ether.h>
|
|
#include <net/gen/eth_io.h>
|
|
|
|
#include "proto.h"
|
|
#include "driver.h"
|
|
|
|
extern endpoint_t lwip_ep;
|
|
|
|
static err_t low_level_output(__unused struct netif *netif, struct pbuf *pbuf)
|
|
{
|
|
struct nic * nic;
|
|
|
|
nic = (struct nic *) netif->state;
|
|
assert(&nic->netif == netif);
|
|
|
|
debug_print("device /dev/%s", nic->name);
|
|
|
|
if (driver_tx_enqueue(nic, pbuf) != OK)
|
|
return ERR_MEM;
|
|
|
|
/* if the driver is idle, start transmitting the packet */
|
|
if (nic->state == DRV_IDLE) {
|
|
if (!driver_tx(nic))
|
|
return ERR_MEM;
|
|
}
|
|
|
|
return ERR_OK;
|
|
}
|
|
|
|
static void low_level_init(struct netif *netif)
|
|
{
|
|
message m;
|
|
struct nic * nic = (struct nic *) netif->state;
|
|
|
|
assert(nic);
|
|
|
|
/* set MAC hardware address length */
|
|
netif->hwaddr_len = ETHARP_HWADDR_LEN;
|
|
|
|
/* maximum transfer unit */
|
|
netif->mtu = 1500;
|
|
nic->max_pkt_sz = ETH_MAX_PACK_SIZE;
|
|
nic->min_pkt_sz = ETH_MIN_PACK_SIZE;
|
|
|
|
/* device capabilities */
|
|
netif->flags = NETIF_FLAG_ETHARP;
|
|
|
|
m.DL_MODE = DL_NOMODE;
|
|
if (nic->flags & NWEO_EN_BROAD)
|
|
m.DL_MODE |= DL_BROAD_REQ;
|
|
if (nic->flags & NWEO_EN_MULTI)
|
|
m.DL_MODE |= DL_MULTI_REQ;
|
|
if (nic->flags & NWEO_EN_PROMISC)
|
|
m.DL_MODE |= DL_PROMISC_REQ;
|
|
|
|
m.m_type = DL_CONF;
|
|
|
|
if (asynsend(((struct nic *)netif->state)->drv_ep , &m) != OK)
|
|
printf("LWIP : ERROR cannot send DL_CONF to driver\n");
|
|
}
|
|
|
|
|
|
err_t ethernetif_init(struct netif *netif)
|
|
{
|
|
/*
|
|
* 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->output = etharp_output;
|
|
netif->linkoutput = low_level_output;
|
|
|
|
/* initialize the hardware */
|
|
low_level_init(netif);
|
|
|
|
return ERR_OK;
|
|
}
|