Mbed OS Reference | PN512TransportDriver.h Source File

 /* mbed Microcontroller Library
  * Copyright (c) 2018 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 MBED_PN512_TRANSPORT_DRIVER_H
 #define MBED_PN512_TRANSPORT_DRIVER_H
 
 #include <stdint.h>
 #include "stack/platform/nfc_transport.h"
 
 
 namespace mbed {
 namespace nfc {
 /**
  * The PN512 supports multiple transport mechanisms (SPI, I2C, UART): this class provides a unified API across these transports
  */
 class PN512TransportDriver {
 public:
     /**
      * The PN512TransportDriver delegate
      */
     struct Delegate {
         /**
          * Called when the PN512 asserts the interrupt line
          */
         virtual void on_hw_interrupt() {}
 
     protected:
         ~Delegate() {}
     };
 
     /**
      * Create a PN512TransportDriver instance
      */
     PN512TransportDriver();
 
     /**
     * PN512TransportDriver destructor.
     */
     virtual ~PN512TransportDriver();
 
     /**
      * Initialize transport driver and perform a chip reset
      */
     virtual void initialize() = 0;
 
     /**
      * Retrieve the nfc_transport_t struct for the stack to use
      *
      * @return a pointer to a nfc_transport_t struct
      */
     virtual nfc_transport_t *get_transport() = 0;
 
     /**
      * Set this instance's delegate
      *
      * @param[in] delegate the delegate instance to use
      */
     void set_delegate(Delegate *delegate);
 protected:
 
     /**
      * An implementation must call this function (can be called from interrupt context)
      * when the PN512 asserts its interrupt line
      */
     void hw_interrupt();
 private:
     Delegate *_delegate;
 };
 
 } // namespace nfc
 } // namespace mbed
 
 #endif
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