Merge pull request #14817 from artokin/add_nanostack_system_time_callbacks_to_master

Add system time read/write callbacks to mbed-mesh-api

Author: 0xc0170

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

@@ -24,6 +24,10 @@
             "help": "Definition of heap statistics `mem_stat_t` storage.",
             "value": null
         },
+        "system-time-update-from-nanostack": {
+            "help": "Allow nanostack to read and write device system time to synchronise time in the network. Feature enabled when set to true, false otherwise.",
+            "value": true
+        },
         "6lowpan-nd-channel-mask": {
             "help": "Channel mask, bit-mask of channels to use. [0-0x07fff800]",
             "value": "0x7fff800"

connectivity/nanostack/mbed-mesh-api/source/MeshInterfaceNanostack.cpp

@@ -22,6 +22,21 @@
 #include "thread_management_if.h"
 #include "ip6string.h"
 #include "mbed_error.h"
+#include "mbed_rtc_time.h"
+
+#if (MBED_CONF_MBED_MESH_API_SYSTEM_TIME_UPDATE_FROM_NANOSTACK == true)
+static uint64_t time_read_callback(void)
+{
+    time_t seconds = time(NULL);
+
+    return (uint64_t)seconds;
+}
+
+static void time_write_callback(uint64_t time_write)
+{
+    set_time((time_t)time_write);
+}
+#endif /* MBED_CONF_MBED_MESH_API_SYSTEM_TIME_UPDATE_FROM_NANOSTACK */
 
 nsapi_error_t Nanostack::Interface::get_ip_address(SocketAddress *address)
 {
@@ -110,6 +125,10 @@ int InterfaceNanostack::connect()
         return error;
     }
 
+#if (MBED_CONF_MBED_MESH_API_SYSTEM_TIME_UPDATE_FROM_NANOSTACK == true)
+    mesh_system_time_callback_set(time_read_callback, time_write_callback);
+#endif /* MBED_CONF_MBED_MESH_API_SYSTEM_TIME_UPDATE_FROM_NANOSTACK */
+
     return _interface->bringup(false, NULL, NULL, NULL, IPV6_STACK, _blocking);
 }
 

connectivity/nanostack/mbed-mesh-api/source/include/mesh_system.h

@@ -32,6 +32,11 @@ enum {
     APPL_BACKHAUL_LINK_UP
 };
 
+
+typedef uint64_t ns_time_read_cb(void);
+typedef void ns_time_write_cb(uint64_t);
+
+
 /*
  * \brief Send application connect event to receiver tasklet to
  * ensure that connection is made in right tasklet.
@@ -40,6 +45,8 @@ void mesh_system_send_connect_event(uint8_t receiver);
 
 int mesh_system_set_file_system_root_path(const char *root_path);
 
+void mesh_system_time_callback_set(ns_time_read_cb, ns_time_write_cb);
+
 /*
  * \brief Initialize mesh system.
  * Memory pool, timers, traces and support are initialized.

connectivity/nanostack/mbed-mesh-api/source/mesh_system.c

@@ -26,6 +26,7 @@
 #include "mbed_assert.h"
 #include "mbed_error.h"
 #include "ns_file_system.h"
+#include "ns_time_api.h"
 // For tracing we need to define flag, have include and define group
 #define HAVE_DEBUG 1
 #include "ns_trace.h"
@@ -83,3 +84,9 @@ int mesh_system_set_file_system_root_path(const char *root_path)
 {
     return ns_file_system_set_root_path(root_path);
 }
+
+void mesh_system_time_callback_set(ns_time_read_cb read_cb, ns_time_write_cb write_cb)
+{
+    ns_time_api_system_time_callback_set(read_cb);
+    ns_time_api_system_time_write_callback_set(write_cb);
+}