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libraries/WiFi/extras/wifiHD/src/lwip_setup.c

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+/*! \page License
+ * Copyright (C) 2009, H&D Wireless AB 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 H&D Wireless AB may not be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY H&D WIRELESS AB ``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 EXPRESSLY AND
+ * SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL 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.
+ */
+
+/*!
+ * \file lwIP setup code
+ *
+ * \brief Collects the lwIP setup code that an application has to
+ *        execute in a standalone environment.
+ *
+ * \author               H&D Wireless AB \n
+ *
+ */
+
+#include <lwip/init.h>
+#include <lwip/dhcp.h>
+#include <lwip/tcp.h>
+#include <ipv4/lwip/ip_frag.h>
+#include <netif/etharp.h>
+#include <netif/wlif.h>
+#include <timer.h>
+
+#include "lwip_setup.h"
+#include "lwip/dns.h"
+
+
+/**
+ *
+ */
+static void
+tcp_tmr_cb(void *ctx)
+{
+        tcp_tmr();
+}
+
+/**
+ *
+ */
+static void
+ip_tmr_cb(void *ctx)
+{
+        ip_reass_tmr();
+}
+
+/**
+ *
+ */
+static void
+dns_tmr_cb(void *ctx)
+{
+	dns_tmr();
+}
+
+/**
+ *
+ */
+static void
+etharp_tmr_cb(void *ctx)
+{
+        etharp_tmr();
+}
+
+
+/**
+ *
+ */
+static void
+dhcp_fine_tmr_cb(void *ctx)
+{
+    dhcp_fine_tmr();
+}
+
+/**
+ *
+ */
+static void
+dhcp_coarse_tmr_cb(void *ctx)
+{
+        dhcp_coarse_tmr();
+}
+
+int start_ip_stack(struct net_cfg *cfg, 
+                   struct ip_addr ipaddr, 
+                   struct ip_addr netmask,
+                   struct ip_addr gw) {
+
+        if (cfg->dhcp_enabled) {
+                IP4_ADDR(&gw, 0,0,0,0);
+                IP4_ADDR(&ipaddr, 0,0,0,0);
+                IP4_ADDR(&netmask, 0,0,0,0);
+        }
+        
+        /* add wl to lwip interface list and set as default */
+        cfg->netif = netif_add(cfg->netif, 
+                               &ipaddr, 
+                               &netmask, 
+                               &gw, 
+                               NULL,
+                               wlif_init, /* init */
+                               ethernet_input /* handles ARP and IP packets */);
+
+        if (cfg->netif == NULL)
+            return -1;
+        netif_set_default(cfg->netif);
+
+        /* register lwip timer callbacks for tcp, arp and dhcp protocols */
+        timer_sched_timeout_cb(5000, TIMEOUT_PERIODIC, 
+                               etharp_tmr_cb, NULL);
+        timer_sched_timeout_cb(TCP_TMR_INTERVAL, TIMEOUT_PERIODIC, 
+                               tcp_tmr_cb, NULL);
+        timer_sched_timeout_cb(DHCP_FINE_TIMER_MSECS, TIMEOUT_PERIODIC, 
+                               dhcp_fine_tmr_cb, NULL);
+        timer_sched_timeout_cb(DHCP_COARSE_TIMER_MSECS, TIMEOUT_PERIODIC,
+                               dhcp_coarse_tmr_cb, NULL);
+        timer_sched_timeout_cb(IP_TMR_INTERVAL, TIMEOUT_PERIODIC,
+                               ip_tmr_cb, NULL);
+        timer_sched_timeout_cb(DNS_TMR_INTERVAL, TIMEOUT_PERIODIC,
+                                      dns_tmr_cb, NULL);
+
+        return 1;
+}