Mbed OS Reference | CellularInterface.h Source File

 /* Copyright (c) 2019 ARM Limited
  * 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 CELLULAR_INTERFACE_H_
 #define CELLULAR_INTERFACE_H_
 
 #include "netsocket/NetworkInterface.h"
 
 /**
  * @addtogroup cellular
  * @{
  */
 
 /** Common interface that is shared between cellular interfaces.
  */
 class CellularInterface: public NetworkInterface {
 
 public:
     /** Get the default cellular interface.
      *
      * This is provided as a weak method so applications can override.
      * Default behavior is to get the target's default interface, if
      * any.
      *
      * @return pointer to interface, if any.
      */
     static CellularInterface *get_default_instance();
 
     /** Set the cellular network credentials.
      *
      *  Please check documentation of connect() for default behavior of APN settings.
      *
      *  @param apn      Access point name.
      *  @param uname    Username (optional).
      *  @param pwd      Password (optional).
      */
     virtual void set_credentials(const char *apn, const char *uname = 0,
                                  const char *pwd = 0) = 0;
 
     /** Set the plmn. PLMN controls to what network device registers.
      *
      *  @param plmn     user to force what network to register.
      */
     virtual void set_plmn(const char *plmn) = 0;
 
     /** Set the PIN code for SIM card.
      *
      *  @param sim_pin      PIN for the SIM card.
      */
     virtual void set_sim_pin(const char *sim_pin) = 0;
 
     /** Attempt to connect to a cellular network with a PIN and credentials.
      *
      *  @param sim_pin     PIN for the SIM card.
      *  @param apn         Access point name (optional).
      *  @param uname       Username (optional).
      *  @param pwd         Password (optional).
      *  @return            NSAPI_ERROR_OK on success, or negative error code on failure.
      */
     virtual nsapi_error_t connect(const char *sim_pin, const char *apn = 0,
                                   const char *uname = 0,
                                   const char *pwd = 0) = 0;
 
     /** Attempt to connect to a cellular network.
      *
      *  If the SIM requires a PIN, and it is invalid or not set, NSAPI_ERROR_AUTH_ERROR is returned.
      *
      *  @return         NSAPI_ERROR_OK on success, or negative error code on failure.
      */
     nsapi_error_t connect() override = 0;
 
     /** Stop the interface.
      *
      *  @return         NSAPI_ERROR_OK on success, or error code on failure.
      */
     nsapi_error_t disconnect() override = 0;
 
     /** Check if the connection is currently established.
      *
      * @return `true` if the cellular module have successfully acquired a carrier and is
      *         connected to an external packet data network using PPP, `false` otherwise.
      */
     virtual bool is_connected() = 0;
 
     /** @copydoc NetworkInterface::get_ip_address */
     nsapi_error_t get_ip_address(SocketAddress *address) override = 0;
 
     /** @copydoc NetworkInterface::cellularInterface
      */
     CellularInterface *cellularInterface() final
     {
         return this;
     }
 
 #if !defined(DOXYGEN_ONLY)
 
 protected:
     /** Get the target's default cellular interface.
      *
      * This is provided as a weak method so targets can override. The
      * default implementation configures and returns the OnBoardModemInterface,
      * if available.
      *
      * @return Pointer to interface, if any.
      */
     static CellularInterface *get_target_default_instance();
 
 #endif //!defined(DOXYGEN_ONLY)
 
 public:
     /** Set default parameters on a cellular interface.
      *
      * A cellular interface instantiated directly or using
      * CellularInterface::get_default_instance() is initially unconfigured.
      * This call can be used to set the default parameters that would
      * have been set if the interface had been requested using
      * NetworkInterface::get_default_instance() (see nsapi JSON
      * configuration).
      */
     void set_default_parameters() override;
 };
 
 #endif // CELLULAR_INTERFACE_H_
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