From 7664f48ad0bb5de53c5fd20dc0c061b936b13638 Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Wed, 29 Feb 2012 14:37:49 +0000
Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@4000
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 os/various/lwip_bindings/lwipthread.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/os/various/lwip_bindings/lwipthread.c b/os/various/lwip_bindings/lwipthread.c
index 31d9caad4..22cdb7066 100644
--- a/os/various/lwip_bindings/lwipthread.c
+++ b/os/various/lwip_bindings/lwipthread.c
@@ -275,8 +275,17 @@ msg_t lwip_thread(void *p) {
 
   while (TRUE) {
     eventmask_t mask = chEvtWaitAny(ALL_EVENTS);
-    if (mask & PERIODIC_TIMER_ID)
-      (void)macPollLinkStatus(&ETHD1);
+    if (mask & PERIODIC_TIMER_ID) {
+      bool_t current_link_status = macPollLinkStatus(&ETHD1);
+      if (current_link_status != netif_is_link_up(&thisif)) {
+        if (current_link_status)
+          tcpip_callback_with_block((tcpip_callback_fn) netif_set_link_up,
+                                     &thisif, 0);
+        else
+          tcpip_callback_with_block((tcpip_callback_fn) netif_set_link_down,
+                                     &thisif, 0);
+      }
+    }
     if (mask & FRAME_RECEIVED_ID) {
       struct pbuf *p;
       while ((p = low_level_input(&thisif)) != NULL) {
-- 
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