Add get_connection_status() override in CellularContext

UNITTESTS/stubs/AT_CellularContext_stub.cpp

@@ -82,6 +82,8 @@ uint32_t AT_CellularContext::get_timeout_for_operation(ContextOperation op) cons
     return timeout;
 }
 
+
+
 bool AT_CellularContext::is_connected()
 {
     return true;
@@ -197,6 +199,12 @@ nsapi_error_t AT_CellularContext::disconnect()
     return NSAPI_ERROR_OK;
 }
 
+
+nsapi_connection_status_t AT_CellularContext::get_connection_status() const
+{
+    return NSAPI_STATUS_DISCONNECTED;
+}
+
 nsapi_error_t AT_CellularContext::get_apn_backoff_timer(int &backoff_timer)
 {
     return NSAPI_ERROR_OK;

features/cellular/framework/AT/AT_CellularContext.cpp

@@ -147,6 +147,11 @@ nsapi_error_t AT_CellularContext::check_operation(nsapi_error_t err, ContextOper
     return err;
 }
 
+nsapi_connection_status_t AT_CellularContext::get_connection_status() const
+{
+    return _connect_status;
+}
+
 uint32_t AT_CellularContext::get_timeout_for_operation(ContextOperation op) const
 {
     uint32_t timeout = NETWORK_TIMEOUT; // default timeout is 30 minutes as registration and attach may take time

features/cellular/framework/AT/AT_CellularContext.h

@@ -37,6 +37,7 @@ class AT_CellularContext : public CellularContext, public AT_CellularBase {
     virtual void attach(mbed::Callback<void(nsapi_event_t, intptr_t)> status_cb);
     virtual nsapi_error_t connect();
     virtual nsapi_error_t disconnect();
+    virtual nsapi_connection_status_t get_connection_status() const;
     virtual bool is_connected();
     // from CellularBase
     virtual void set_plmn(const char *plmn);

features/cellular/framework/targets/UBLOX/AT/UBLOX_AT_CellularContext.cpp

@@ -67,7 +67,7 @@ void UBLOX_AT_CellularContext::do_connect()
     _at.unlock();
 
     if (_status_cb) {
-        call_network_cb(_connect_status);
+        _status_cb(NSAPI_EVENT_CONNECTION_STATUS_CHANGE, _connect_status);
     }
 }