initial commit of lk (little kernel) project
diff --git a/lib/lwip/init.c b/lib/lwip/init.c
new file mode 100644
index 0000000..05a2aa9
--- /dev/null
+++ b/lib/lwip/init.c
@@ -0,0 +1,108 @@
+/*
+ * Copyright (c) 2006 Travis Geiselbrecht
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files
+ * (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include <debug.h>
+#include <malloc.h>
+#include <err.h>
+#include <dev/ethernet.h>
+
+#include <lwip/err.h>
+#include <lwip/stats.h>
+#include <lwip/sys.h>
+#include <lwip/ip.h>
+#include <lwip/mem.h>
+#include <lwip/memp.h>
+#include <lwip/ip_addr.h>
+#include <lwip/netif.h>
+#include <lwip/dhcp.h>
+#include <lwip/tcpip.h>
+#include <netif/etharp.h>
+
+static void
+arp_timer(void *arg)
+{
+ etharp_tmr();
+ sys_timeout(ARP_TMR_INTERVAL, arp_timer, NULL);
+}
+
+#if WITH_DHCP
+static void
+dhcp_coarse_timer(void *arg)
+{
+ dhcp_coarse_tmr();
+ sys_timeout(60*1000, dhcp_coarse_timer, NULL);
+}
+
+static void
+dhcp_fine_timer(void *arg)
+{
+ dhcp_fine_tmr();
+ sys_timeout(500, dhcp_fine_timer, NULL);
+}
+#endif
+
+int lwip_init(void)
+{
+ stats_init();
+ sys_init();
+ mem_init();
+ memp_init();
+ pbuf_init();
+
+ tcpip_init(NULL, NULL);
+
+ thread_sleep(1000);
+
+ if (ethernet_init() < NO_ERROR) {
+ dprintf("lwip_init: error initializing ethernet, aborting...\n");
+ return ERROR;
+ }
+
+ etharp_init();
+ sys_timeout(ARP_TMR_INTERVAL, arp_timer, NULL);
+
+#if WITH_STATIC_IP
+ struct ip_addr ipaddr;
+ struct ip_addr gwaddr;
+ struct ip_addr netmask;
+
+ ipaddr.addr = htonl(IP_ADDR);
+ gwaddr.addr = htonl(GW_ADDR);
+ netmask.addr = htonl(NETMASK);
+
+ netif_set_ipaddr(netif_default, &ipaddr);
+ netif_set_netmask(netif_default, &netmask);
+ netif_set_gw(netif_default, &gwaddr);
+#endif
+
+ netif_set_up(netif_default);
+
+#if WITH_DHCP
+ dprintf("starting dhcp on default netif\n");
+ dhcp_start(netif_default);
+
+ /* start some dhcp timers */
+ sys_timeout(60*1000, dhcp_coarse_timer, NULL);
+ sys_timeout(500, dhcp_fine_timer, NULL);
+#endif
+ return 0;
+}