Nanostack: Add config for Wi-SUN device type

Add configuration option for Wi-SUN device types.

Author: Arto Kinnunen

features/nanostack/mbed-mesh-api/mbed-mesh-api/mesh_interface_types.h

@@ -59,7 +59,9 @@ typedef enum {
 typedef enum {
     MESH_DEVICE_TYPE_THREAD_ROUTER = 0,         /*<! Thread router */
     MESH_DEVICE_TYPE_THREAD_SLEEPY_END_DEVICE,  /*<! Thread Sleepy end device */
-    MESH_DEVICE_TYPE_THREAD_MINIMAL_END_DEVICE  /*<! Thread minimal end device */
+    MESH_DEVICE_TYPE_THREAD_MINIMAL_END_DEVICE, /*<! Thread minimal end device */
+    MESH_DEVICE_TYPE_WISUN_ROUTER,              /*<! Wi-SUN router */
+    MESH_DEVICE_TYPE_WISUN_BORDER_ROUTER        /*<! Wi-SUN border router */
 } mesh_device_type_t;
 
 #ifdef __cplusplus

features/nanostack/mbed-mesh-api/mbed_lib.json

@@ -154,6 +154,10 @@
             "help": "Unicast dwell interval. Range: 15-255 milliseconds",
             "value": 0
         },
+        "wisun-device-type": {
+            "help": "Supported device operating modes: MESH_DEVICE_TYPE_WISUN_ROUTER, MESH_DEVICE_TYPE_WISUN_BORDER_ROUTER",
+            "value": "MESH_DEVICE_TYPE_WISUN_ROUTER"
+        },
         "certificate-header": {
             "help": "File name of the certificate header file (used on include directive)",
             "value": null

features/nanostack/mbed-mesh-api/source/wisun_tasklet.c

@@ -252,7 +252,12 @@ static void wisun_tasklet_configure_and_connect_to_network(void)
     int status;
     fhss_timer_t *fhss_timer_ptr = &fhss_functions;
 
-    wisun_tasklet_data_ptr->operating_mode = NET_6LOWPAN_ROUTER;
+    if (MBED_CONF_MBED_MESH_API_WISUN_DEVICE_TYPE == MESH_DEVICE_TYPE_WISUN_BORDER_ROUTER) {
+        wisun_tasklet_data_ptr->operating_mode = NET_6LOWPAN_BORDER_ROUTER;
+    } else {
+        wisun_tasklet_data_ptr->operating_mode = NET_6LOWPAN_ROUTER;
+    }
+
     wisun_tasklet_data_ptr->operating_mode_extension = NET_6LOWPAN_WS;
 
     arm_nwk_interface_configure_6lowpan_bootstrap_set(