use tcpip_init_done_callback to initialize lwip stack.

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1668 bbd45198-f89e-11dd-88c7-29a3b14d5316

components/net/lwip/src/arch/include/arch/sys_arch_init.h

 #ifndef __LWIP_SYS_INIT_H__
 #define __LWIP_SYS_INIT_H__
 
-void lwip_sys_init();
+void lwip_sys_init(void);
+void lwip_system_init(void);
 
 #endif
+

components/net/lwip/src/arch/sys_arch_init.c

 #include <rtthread.h>
-#ifdef RT_USING_FINSH
-#include <finsh.h>
-#endif
 
 #include "lwip/debug.h"
 #include "lwip/mem.h"
@@ -14,55 +11,136 @@
 #include "netif/ethernetif.h"
 #include "netif/etharp.h"
 
-/*
- * lwip system initial entry
- */
-void lwip_sys_init()
+/* introduce from kservice.c */
+#define rt_list_entry(node, type, member) \
+    ((type *)((char *)(node) - (unsigned long)(&((type *)0)->member)))
+
+static err_t netif_device_init(struct netif *netif)
+{
+	struct eth_device *ethif;
+
+	ethif = (struct eth_device*)netif->state;
+	if (ethif != RT_NULL)
+	{
+		rt_device_t device;
+		
+		/* get device object */
+		device = (rt_device_t) ethif;
+		if (rt_device_init(device) != RT_EOK)
+		{
+			return ERR_IF;
+		}
+		return ERR_OK;
+	}
+
+	return ERR_IF;
+}
+
+static void tcpip_init_done_callback(void *arg)
 {
+	rt_device_t device;
+	struct eth_device *ethif;
 	struct ip_addr ipaddr, netmask, gw;
+	struct rt_list_node* node;
+	struct rt_object* object;
+	struct rt_object_information *information;
 
-#if LWIP_DHCP
-	rt_uint32_t mscnt = 0;
+	extern struct rt_object_information rt_object_container[];
+
+	LWIP_ASSERT("invalid arg.\n",arg);
 
 	IP4_ADDR(&gw, 0,0,0,0);
 	IP4_ADDR(&ipaddr, 0,0,0,0);
 	IP4_ADDR(&netmask, 0,0,0,0);
+
+	/* enter critical */
+	rt_enter_critical();
+
+	/* for each network interfaces */
+	information = &rt_object_container[RT_Object_Class_Device];
+	for (node = information->object_list.next; node != &(information->object_list); node = node->next)
+	{
+		object = rt_list_entry(node, struct rt_object, list);
+		device = (rt_device_t) object;
+		if (device->type == RT_Device_Class_NetIf)
+		{
+			ethif = (struct eth_device*)device;
+
+			/* leave critical */
+			rt_exit_critical();
+
+			netif_add(ethif->netif, &ipaddr, &netmask, &gw, 
+				ethif, netif_device_init, tcpip_input);
+
+			if (netif_default == RT_NULL)
+				netif_set_default(ethif->netif);
+
+#if LWIP_DHCP
+			dhcp_start(ethif->netif);
 #else
-	IP4_ADDR(&ipaddr, RT_LWIP_IPADDR0, RT_LWIP_IPADDR1, RT_LWIP_IPADDR2, RT_LWIP_IPADDR3);
-	IP4_ADDR(&gw, RT_LWIP_GWADDR0, RT_LWIP_GWADDR1, RT_LWIP_GWADDR2, RT_LWIP_GWADDR3);
-	IP4_ADDR(&netmask, RT_LWIP_MSKADDR0, RT_LWIP_MSKADDR1, RT_LWIP_MSKADDR2, RT_LWIP_MSKADDR3);
+			netif_set_up(ethif->netif);
 #endif
 
-  	tcpip_init(RT_NULL, RT_NULL);
+#ifdef LWIP_NETIF_LINK_CALLBACK
+			netif_set_link_up(ethif->netif);
+#endif
 
-	netif_set_addr(netif_default, &ipaddr, &netmask, &gw);
-	netif_set_up(netif_default);
+			/* enter critical */
+			rt_enter_critical();
+		}
+	}
 
-#if LWIP_DHCP
-	/* use DHCP client */
-	dhcp_start(netif_default);
+	/* leave critical */
+	rt_exit_critical();
 
-    while (netif_default->ip_addr.addr == 0)
+	rt_sem_release((rt_sem_t)arg);
+}
+
+/**
+ * LwIP system initialization
+ */
+void lwip_system_init(void)
+{
+	rt_err_t rc;
+	struct rt_semaphore done_sem;
+	
+	rc = rt_sem_init(&done_sem, "done", 0, RT_IPC_FLAG_FIFO);
+	
+	if(rc != RT_EOK)
 	{
-        rt_thread_delay(DHCP_FINE_TIMER_MSECS * RT_TICK_PER_SECOND / 1000);
-
-        dhcp_fine_tmr();
-        mscnt += DHCP_FINE_TIMER_MSECS;
-        if (mscnt >= DHCP_COARSE_TIMER_SECS*1000)
-        {
-            dhcp_coarse_tmr();
-            mscnt = 0;
-        }
-    }
-	
-	rt_kprintf("Acquired IP address from DHCP server:");
-	rt_kprintf("%d.%d.%d.%d\n", netif_default->ip_addr.addr & 0xff,
-		(netif_default->ip_addr.addr>>8) & 0xff,
-		(netif_default->ip_addr.addr>>16) & 0xff, 
-		(netif_default->ip_addr.addr>>24) & 0xff);
-#endif
+    	LWIP_ASSERT("Failed to create semaphore", 0);
+		return;
+	}
+
+	tcpip_init(tcpip_init_done_callback,(void *)&done_sem);
+
+	/* waiting for initialization done */
+	if (rt_sem_take(&done_sem, RT_WAITING_FOREVER) != RT_EOK)
+	{
+		rt_sem_detach(&done_sem);
+		return;
+	}
+	rt_sem_detach(&done_sem);
+
+	/* set default ip address */
+#if !LWIP_DHCP
+	{
+		struct ip_addr ipaddr, netmask, gw;
 
-#if defined(RT_USING_FINSH) && (LWIP_STATS_DISPLAY)
-    finsh_syscall_append("lwip_info", (syscall_func)stats_display);
+		IP4_ADDR(&ipaddr, RT_LWIP_IPADDR0, RT_LWIP_IPADDR1, RT_LWIP_IPADDR2, RT_LWIP_IPADDR3);
+		IP4_ADDR(&gw, RT_LWIP_GWADDR0, RT_LWIP_GWADDR1, RT_LWIP_GWADDR2, RT_LWIP_GWADDR3);
+		IP4_ADDR(&netmask, RT_LWIP_MSKADDR0, RT_LWIP_MSKADDR1, RT_LWIP_MSKADDR2, RT_LWIP_MSKADDR3);
+
+		netifapi_netif_set_addr(netif_default, &ipaddr, &netmask, &gw);
+	}
 #endif
 }
+
+/**
+ * Compatible with RT-Thread 0.2.x/0.3.x
+ */
+void lwip_sys_init(void)
+{
+	lwip_system_init();
+}
+

components/net/lwip/src/lwipopts.h

@@ -326,5 +326,6 @@
 
 /* no read/write/close for socket */
 #define LWIP_POSIX_SOCKETS_IO_NAMES	0
+#define LWIP_NETIF_API	1
 
 #endif /* __LWIPOPTS_H__ */

components/net/lwip/src/netif/ethernetif.c

@@ -87,55 +87,6 @@ static char eth_tx_thread_mb_pool[RT_LWIP_ETHTHREAD_MBOX_SIZE * 4];
 static char eth_tx_thread_stack[RT_LWIP_ETHTHREAD_STACKSIZE];
 #endif
 
-/* the interface provided to LwIP */
-err_t eth_init(struct netif *netif)
-{
-	return ERR_OK;
-}
-
-err_t eth_input(struct pbuf *p, struct netif *inp)
-{
-	struct eth_hdr *ethhdr;
-
-	if(p != RT_NULL)
-	{
-#ifdef LINK_STATS
-		LINK_STATS_INC(link.recv);
-#endif /* LINK_STATS */
-
-		ethhdr = p->payload;
-
-		switch(htons(ethhdr->type))
-		{
-		case ETHTYPE_IP:
-			etharp_ip_input(inp, p);
-			pbuf_header(p, -((rt_int16_t)sizeof(struct eth_hdr)));
-			if (tcpip_input(p, inp) != ERR_OK)
-			{
-				/* discard packet */
-				pbuf_free(p);
-			}
-			break;
-
-		case ETHTYPE_ARP:
-			etharp_arp_input(inp, (struct eth_addr *)inp->hwaddr, p);
-			break;
-
-		default:
-			pbuf_free(p);
-			p = RT_NULL;
-			break;
-		}
-	}
-
-	return ERR_OK;
-}
-
-err_t ethernetif_output(struct netif *netif, struct pbuf *p, struct ip_addr *ipaddr)
-{
-	return etharp_output(netif, p, ipaddr);
-}
-
 err_t ethernetif_linkoutput(struct netif *netif, struct pbuf *p)
 {
 	struct eth_tx_msg msg;
@@ -184,27 +135,15 @@ rt_err_t eth_device_init(struct eth_device* dev, const char* name)
 	/* maximum transfer unit */
 	netif->mtu			= ETHERNET_MTU;
 	/* broadcast capability */
-	netif->flags		= NETIF_FLAG_BROADCAST;
+	netif->flags		= NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP;
 
 	/* get hardware address */
 	rt_device_control(&(dev->parent), NIOCTL_GADDR, netif->hwaddr);
 
 	/* set output */
-	netif->output		= ethernetif_output;
+	netif->output		= etharp_output;
 	netif->linkoutput	= ethernetif_linkoutput;
 
-	/* add netif to lwip */
-	if (netif_add(netif, IP_ADDR_ANY, IP_ADDR_BROADCAST, IP_ADDR_ANY, dev,
-		eth_init, eth_input) == RT_NULL)
-	{
-		/* failed, unregister device and free netif */
-		rt_device_unregister(&(dev->parent));
-		rt_free(netif);
-		return -RT_ERROR;
-	}
-
-	netif_set_default(netif);
-
 	return RT_EOK;
 }
 
@@ -256,7 +195,12 @@ void eth_rx_thread_entry(void* parameter)
 				if (p != RT_NULL)
 				{
 					/* notify to upper layer */
-					eth_input(p, device->netif);
+					if( device->netif->input(p, device->netif) != ERR_OK )
+					{
+						LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: Input error\n"));
+       					pbuf_free(p);
+       					p = NULL;
+					}
 				}
 				else break;
 			}
@@ -264,12 +208,17 @@ void eth_rx_thread_entry(void* parameter)
 	}
 }
 
-rt_err_t eth_device_ready(struct eth_device* dev)
+rt_err_t eth_rx_ready(struct eth_device* dev)
 {
 	/* post message to ethernet thread */
 	return rt_mb_send(&eth_rx_thread_mb, (rt_uint32_t)dev);
 }
 
+rt_err_t eth_device_ready(struct eth_device* dev)
+{
+	return eth_rx_ready(dev);
+}
+
 rt_err_t eth_system_device_init()
 {
 	rt_err_t result = RT_EOK;