metalsvm/kernel/net.c
stefan c3c7468208 - some code cleanup
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@301 315a16e6-25f9-4109-90ae-ca3045a26c18
2010-11-30 19:47:46 +00:00

125 lines
2.7 KiB
C

/*
* Copyright 2010 Stefan Lankes, Chair for Operating Systems,
* RWTH Aachen University
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of MetalSVM.
*/
#include <metalsvm/stddef.h>
#include <metalsvm/stdio.h>
#include <metalsvm/string.h>
#include <metalsvm/processor.h>
#include <metalsvm/time.h>
#include <metalsvm/tasks.h>
#include <metalsvm/errno.h>
#ifdef CONFIG_LWIP
#include <lwip/init.h>
#include <lwip/sys.h>
#include <lwip/stats.h>
#include <lwip/udp.h>
#include <lwip/tcp.h>
#include <lwip/dhcp.h>
#include <lwip/netif.h>
#include <netif/etharp.h>
#endif
#include <net/rtl8139.h>
void echo_init(void);
void ping_init(void);
static volatile int done = 0;
#if defined(CONFIG_LWIP) && defined(CONFIG_PCI)
static tid_t netid;
int STDCALL network_task(void* arg)
{
struct netif netif;
struct ip_addr ipaddr;
struct ip_addr netmask;
struct ip_addr gw;
kputs("Network task is started\n");
/* Set network address variables */
//IP4_ADDR(&gw, 192,168,1,254);
//IP4_ADDR(&ipaddr, 192,168,1,100);
//IP4_ADDR(&netmask, 255,255,255,0);
/* Clear network address because we use DHCP to get an ip address */
IP4_ADDR(&gw, 0,0,0,0);
IP4_ADDR(&ipaddr, 0,0,0,0);
IP4_ADDR(&netmask, 0,0,0,0);
/* Clear the IP address, Subnet Mask, and Gateway */
ipaddr.addr = 0;
netmask.addr = 0;
gw.addr = 0;
/* Bring up the network interface */
if (!netif_add(&netif, &ipaddr, &netmask, &gw, NULL, rtl8139if_init, ethernet_input)) {
kputs("Unable to add network interface\n");
return -ENXIO;
}
netif_set_default(&netif);
if (netif_is_up(&netif)) {
kputs("Network interface is not up\n");
return -EIO;
}
kprintf("Starting DHCPCD...\n");
dhcp_start(&netif);
/* wait for ip address */
while(!netif.ip_addr.addr) {
rtl8139if_wait(&netif, 1);
udelay(500000);
}
// start echo and ping server
echo_init();
ping_init();
while(!done) {
rtl8139if_wait(&netif, 0);
}
dhcp_release(&netif);
dhcp_stop(&netif);
return 0;
}
#endif
int network_shotdown(void)
{
done = 1;
return 0;
}
int network_init(void)
{
#if defined(CONFIG_LWIP)
lwip_init();
#endif
#if defined(CONFIG_LWIP) && defined(CONFIG_PCI)
return create_kernel_task(&netid, network_task, NULL);
#else
return 0;
#endif
}