Cellular: Add deativation of context associated with profile

UNITTESTS/stubs/AT_CellularContext_stub.cpp

@@ -199,6 +199,10 @@ void AT_CellularContext::do_connect()
 {
 }
 
+void AT_CellularContext::do_disconnect()
+{
+}
+
 #if NSAPI_PPP_AVAILABLE
 nsapi_error_t AT_CellularContext::open_data_channel()
 {

features/cellular/framework/AT/AT_CellularContext.h

@@ -84,6 +84,8 @@ class AT_CellularContext : public CellularContext {
      */
     virtual void do_connect();
 
+    virtual void do_disconnect();
+
     /** Get the operation specific timeout. Used in synchronous mode when setting the maximum
      *   waiting time. Modem specific implementation can override this to provide different timeouts.
      *
@@ -121,7 +123,6 @@ class AT_CellularContext : public CellularContext {
     nsapi_error_t check_operation(nsapi_error_t err, ContextOperation op);
     void ciot_opt_cb(mbed::CellularNetwork::CIoT_Supported_Opt ciot_opt);
     virtual void do_connect_with_retry();
-    void do_disconnect();
     void set_cid(int cid);
 
 private:

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

@@ -128,29 +128,31 @@ CellularDevice *CellularDevice::get_default_instance()
 nsapi_error_t UBLOX_AT::init()
 {
     setup_at_handler();
-
     _at.lock();
     _at.flush();
     _at.at_cmd_discard("", "");
-    int value = -1;
 
-#ifdef UBX_MDM_SARA_G3XX
-    value = 0;
-#elif defined(UBX_MDM_SARA_U2XX) || defined(UBX_MDM_SARA_R41XM)
-    value = 4;
-#else
-    _at.unlock();
-    return NSAPI_ERROR_UNSUPPORTED;
-#endif
+#if defined(UBX_MDM_SARA_U2XX) || defined(UBX_MDM_SARA_G3XX)
+    nsapi_error_t err = _at.at_cmd_discard("E0", ""); // echo off
 
-    nsapi_error_t err = _at.at_cmd_discard("+CFUN", "=", "%d", value);
+    if (err == NSAPI_ERROR_OK) {
+        _at.at_cmd_discard("+CMEE", "=1"); // verbose responses
+        err = _at.at_cmd_discard("+CFUN", "=1"); // set full functionality
+    }
+#elif defined(UBX_MDM_SARA_R41XM)
+    nsapi_error_t err = _at.at_cmd_discard("+CFUN", "=", "%d", 4);
 
     if (err == NSAPI_ERROR_OK) {
         _at.at_cmd_discard("E0", ""); // echo off
         _at.at_cmd_discard("+CMEE", "=1"); // verbose responses
         config_authentication_parameters();
         err = _at.at_cmd_discard("+CFUN", "=1"); // set full functionality
     }
+#else
+    _at.unlock();
+    return NSAPI_ERROR_UNSUPPORTED;
+#endif
+
     return _at.unlock_return_error();
 }
 

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

@@ -113,6 +113,13 @@ void UBLOX_AT_CellularContext::do_connect()
         _status_cb(NSAPI_EVENT_CONNECTION_STATUS_CHANGE, _connect_status);
     }
 }
+#ifndef UBX_MDM_SARA_R41XM
+void UBLOX_AT_CellularContext::do_disconnect()
+{
+    disconnect_modem_stack();
+    AT_CellularContext::do_disconnect();
+}
+#endif
 
 #ifndef UBX_MDM_SARA_R41XM
 nsapi_error_t UBLOX_AT_CellularContext::define_context()

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

@@ -28,6 +28,9 @@ class UBLOX_AT_CellularContext: public AT_CellularContext {
     virtual ~UBLOX_AT_CellularContext();
 
     virtual void do_connect();
+#ifndef UBX_MDM_SARA_R41XM
+    virtual void do_disconnect();
+#endif
     virtual nsapi_error_t get_gateway(SocketAddress *addr);
 
     const char *get_apn(void);