Make link detect thread parameters in lwIP configurable

zcu102-zynqmp/freertos/baseline/master/lwip/include/lwip/lwipopts.h

@@ -479,6 +479,12 @@
  */
 #define LWIP_NETIF_STATUS_CALLBACK      1
 
+/**
+ * LWIP_NETIF_EXT_STATUS_CALLBACK==1: Support a callback function whenever an interface
+ * changes various states including DHCP,...
+ */
+#define LWIP_NETIF_EXT_STATUS_CALLBACK  1
+
 /*
    ------------------------------------
    ---------- Thread options ----------

zcu102-zynqmp/freertos/baseline/master/lwip/include/lwip/xlwipconfig.h

@@ -20,10 +20,23 @@
 #define CONFIG_LINKSPEED_AUTODETECT     1
 
 /**
- * The size of the stack of the threads taking care of DHCP and the incoming packets
+ * The size of the stack of the thread transferring incoming packets from the Xilinx driver to lwIP
  */
 #define XLWIP_CONFIG_THREAD_STACKSIZE 1024
 
+/**
+ * The priority of the thread transferring incoming packets from the Xilinx driver to lwIP
+ */
 #define XLWIP_CONFIG_THREAD_PRIO    (8 - 1)
 
+/**
+ * The size of the stack of the thread checking for an established link on the emacps interface
+ */
+#define XLWIP_LINK_DETECT_THREAD_STACKSIZE 1024
+
+/**
+ * The interval in ms by which change of link connection is determined by the emacps driver
+ */
+#define XLWIP_LINK_DETECT_THREAD_INTERVAL 1000 /* one second */
+
 #endif /* __XLWIPCONFIG_H_ */