Mbed OS Reference | AT_CellularNetwork.h Source File

 /*
  * Copyright (c) 2017, Arm Limited and affiliates.
  * SPDX-License-Identifier: Apache-2.0
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *     http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 
 #ifndef AT_CELLULAR_NETWORK_H_
 #define AT_CELLULAR_NETWORK_H_
 
 #include "CellularNetwork.h"
 #include "ATHandler.h"
 #include "AT_CellularDevice.h"
 
 namespace mbed {
 
 #define AT_NETWORK_TRIALS 5
 #define TIMER_UNIT_LENGTH 3
 #define TWO_BYTES_HEX 4
 #define FOUR_BYTES_HEX 8
 #define ONE_BYTE_BINARY 8
 
 /**
  *  Class AT_CellularNetwork
  *
  *  Class for attaching to a network and getting information from it.
  */
 class AT_CellularNetwork : public CellularNetwork {
 public:
 
     AT_CellularNetwork(ATHandler &atHandler, AT_CellularDevice &device);
     virtual ~AT_CellularNetwork();
     // declare friend so it can access stack
     friend class AT_CellularDevice;
 
     enum RegistrationMode {
         RegistrationModeDisable = 0,
         RegistrationModeEnable, // <stat>
         RegistrationModeLAC, // <stat>[,<[lac>,]<[ci>],[<AcT>],[<rac>]]
     };
 
 public: // CellularNetwork
 
     virtual nsapi_error_t set_registration(const char *plmn = 0);
 
     virtual nsapi_error_t get_network_registering_mode(NWRegisteringMode &mode);
 
     virtual nsapi_error_t set_attach();
 
     virtual nsapi_error_t get_attach(AttachStatus &status);
 
     virtual nsapi_error_t detach();
 
     virtual void attach(Callback<void(nsapi_event_t, intptr_t)> status_cb);
 
     virtual nsapi_error_t set_access_technology(RadioAccessTechnology rat);
 
     virtual nsapi_error_t scan_plmn(operList_t &operators, int &ops_count);
 
     virtual nsapi_error_t set_ciot_optimization_config(CIoT_Supported_Opt supported_opt,
                                                        CIoT_Preferred_UE_Opt preferred_opt,
                                                        Callback<void(CIoT_Supported_Opt)> network_support_cb);
 
     virtual nsapi_error_t get_ciot_ue_optimization_config(CIoT_Supported_Opt &supported_opt,
                                                           CIoT_Preferred_UE_Opt &preferred_opt);
 
     virtual nsapi_error_t get_ciot_network_optimization_config(CIoT_Supported_Opt &supported_network_opt);
 
     virtual nsapi_error_t get_signal_quality(int &rssi, int *ber = NULL);
 
     virtual int get_3gpp_error();
 
     virtual nsapi_error_t get_operator_params(int &format, operator_t &operator_params);
 
     virtual nsapi_error_t set_registration_urc(RegistrationType type, bool on);
 
     virtual nsapi_error_t get_operator_names(operator_names_list &op_names);
 
     virtual bool is_active_context(int *number_of_active_contexts = NULL, int cid = -1);
 
     virtual nsapi_error_t get_registration_params(registration_params_t &reg_params);
 
     virtual nsapi_error_t get_registration_params(RegistrationType type, registration_params_t &reg_params);
 
     virtual nsapi_error_t set_receive_period(int mode, EDRXAccessTechnology act_type, uint8_t edrx_value);
 
     virtual nsapi_error_t set_packet_domain_event_reporting(bool on);
 
 protected:
     /** Sets access technology to be scanned. Modem specific implementation.
      *
      *  @param op_rat Access technology
      *
      *  @return       zero on success
      */
     virtual nsapi_error_t set_access_technology_impl(RadioAccessTechnology op_rat);
 
     /** Sends a command to query the active state of the PDP contexts.
      *  Can be overridden by the target class.
      */
     virtual void get_context_state_command();
 
     /** Clear the network and contexts to a known default state
      *
      *  @return         NSAPI_ERROR_OK on success
      */
     virtual nsapi_error_t clear();
 
 private:
     void urc_creg();
     void urc_cereg();
     void urc_cgreg();
     void urc_cgev();
     void urc_cciotopti();
 
     void read_reg_params_and_compare(RegistrationType type);
     void read_reg_params(RegistrationType type, registration_params_t &reg_params);
 
     // Returns active time(Table 10.5.163/3GPP TS 24.008: GPRS Timer 2 information element) in seconds
     int calculate_active_time(const char *active_time_string, int active_time_length);
     // Returns periodic tau(Table 10.5.163a/3GPP TS 24.008: GPRS Timer 3 information element) in seconds
     int calculate_periodic_tau(const char *periodic_tau_string, int periodic_tau_length);
 
     // calls network callback only if status was changed, updates local connection status
     void call_network_cb(nsapi_connection_status_t status);
 
 protected:
     Callback<void(nsapi_event_t, intptr_t)> _connection_status_cb;
     Callback<void(CIoT_Supported_Opt)> _ciotopt_network_support_cb;
     RadioAccessTechnology _op_act;
     nsapi_connection_status_t _connect_status;
     CIoT_Supported_Opt _supported_network_opt;
 
     registration_params_t _reg_params;
     mbed::Callback<void()> _urc_funcs[C_MAX];
 
     ATHandler &_at;
     AT_CellularDevice &_device;
 };
 
 } // namespace mbed
 
 #endif // AT_CELLULAR_NETWORK_H_
Important Information for this Arm website
