Mbed OS Reference | AT_CellularContext.h Source File

 /*
  * Copyright (c) 2018, 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_CELLULARCONTEXT_H_
 #define AT_CELLULARCONTEXT_H_
 
 #include "CellularContext.h"
 #include "AT_CellularBase.h"
 #include "Semaphore.h"
 
 const int MAX_APN_LENGTH = 63 + 1;
 
 namespace mbed {
 
 class AT_CellularDevice;
 
 class AT_CellularContext : public CellularContext, public AT_CellularBase {
 public:
     AT_CellularContext(ATHandler &at, CellularDevice *device, const char *apn = 0, bool cp_req = false, bool nonip_req = false);
     virtual ~AT_CellularContext();
 
 // from CellularBase/NetworkInterface
     virtual nsapi_error_t set_blocking(bool blocking);
     virtual NetworkStack *get_stack();
     virtual const char *get_ip_address();
     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);
     virtual void set_sim_pin(const char *sim_pin);
     virtual nsapi_error_t connect(const char *sim_pin, const char *apn = 0, const char *uname = 0,
                                   const char *pwd = 0);
     virtual void set_credentials(const char *apn, const char *uname = 0, const char *pwd = 0);
     virtual const char *get_netmask();
     virtual const char *get_gateway();
 
 // from CellularContext
     virtual nsapi_error_t get_pdpcontext_params(pdpContextList_t &params_list);
     virtual nsapi_error_t get_rate_control(CellularContext::RateControlExceptionReports &reports,
                                            CellularContext::RateControlUplinkTimeUnit &time_unit, int &uplink_rate);
     virtual nsapi_error_t get_apn_backoff_timer(int &backoff_timer);
     virtual nsapi_error_t set_device_ready();
     virtual nsapi_error_t set_sim_ready();
     virtual nsapi_error_t register_to_network();
     virtual nsapi_error_t attach_to_network();
     virtual void set_file_handle(FileHandle *fh);
 #if (DEVICE_SERIAL && DEVICE_INTERRUPTIN) || defined(DOXYGEN_ONLY)
     virtual void set_file_handle(UARTSerial *serial, PinName dcd_pin = NC, bool active_high = false);
 #endif // #if DEVICE_SERIAL
     virtual void enable_hup(bool enable);
 
     virtual ControlPlane_netif *get_cp_netif();
 
     AT_CellularDevice *get_device() const;
 protected:
     virtual void cellular_callback(nsapi_event_t ev, intptr_t ptr);
 
     /** Does the authentication for the PDP Context if user name and password are provided.
      *  Can be overridden by the modem target if 3GPP default implementation if not an option
      *
      *  @return NSAPI_ERROR_OK if no credentials provided or authentication was successful
      *          NSAPI_ERROR_AUTH_FAILURE if authentication failed
      *          NSAPI_ERROR_DEVICE_ERROR if communication with the modemm failed
      */
     virtual nsapi_error_t do_user_authentication();
 
     /** Activates PDP context or in PPP mode opens data channel.
      *  Can be overridden by the modem target if 3GPP default implementation if not an option
      */
     virtual void do_connect();
 
     /** 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.
      *
      *  @param  op  current operation
      *  @return     timeout in milliseconds
      */
     virtual uint32_t get_timeout_for_operation(ContextOperation op) const;
 
     virtual nsapi_error_t activate_non_ip_context();
     virtual nsapi_error_t setup_control_plane_opt();
     virtual void deactivate_non_ip_context();
     virtual void deactivate_ip_context();
     virtual void set_disconnect();
     virtual void deactivate_context();
     virtual bool get_context();
     pdp_type_t string_to_pdp_type(const char *pdp_type);
     AT_CellularBase::CellularProperty pdp_type_t_to_cellular_property(pdp_type_t pdp_type);
     bool set_new_context(int cid);
 private:
 #if NSAPI_PPP_AVAILABLE
     nsapi_error_t open_data_channel();
     void ppp_status_cb(nsapi_event_t ev, intptr_t ptr);
     void ppp_disconnected();
 #endif // #if NSAPI_PPP_AVAILABLE
     nsapi_error_t do_activate_context();
     virtual void activate_context();
     nsapi_error_t find_and_activate_context();
     nsapi_error_t activate_ip_context();
     void check_and_deactivate_context();
     nsapi_error_t delete_current_context();
     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();
 private:
     bool _is_connected;
     ContextOperation  _current_op;
     FileHandle *_fh;
     rtos::Semaphore _semaphore;
     rtos::Semaphore _cp_opt_semaphore;
 
 protected:
     char _found_apn[MAX_APN_LENGTH];
     // flag indicating if CP was requested to be setup
     bool _cp_req;
     // flag indicating if Non-IP context was requested to be setup
     bool _nonip_req;
     // tells if CCIOTOPTI received green from network for CP optimization use
     bool _cp_in_use;
 };
 
 } // namespace mbed
 
 #endif // AT_CELLULARCONTEXT_H_
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