PN512SPITransportDriver.h

00001 /* mbed Microcontroller Library
00002  * Copyright (c) 2018 ARM Limited
00003  *
00004  * Licensed under the Apache License, Version 2.0 (the "License");
00005  * you may not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  *
00008  *     http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an "AS IS" BASIS,
00012  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016 
00017 #ifndef MBED_PN512_SPI_TRANSPORT_DRIVER_H
00018 #define MBED_PN512_SPI_TRANSPORT_DRIVER_H
00019 
00020 #include <stdint.h>
00021 
00022 #include "platform/platform.h"
00023 #include "platform/nfc_transport.h"
00024 #include "PN512TransportDriver.h"
00025 
00026 #include "drivers/SPI.h"
00027 #include "drivers/DigitalOut.h"
00028 #include "drivers/InterruptIn.h"
00029 
00030 namespace mbed {
00031 namespace nfc {
00032 
00033 class PN512SPITransportDriver : public PN512TransportDriver {
00034 public:
00035     PN512SPITransportDriver(PinName mosi, PinName miso, PinName sclk, PinName ssel, PinName irq, PinName rst);
00036 
00037 private:
00038     virtual void initialize();
00039     virtual nfc_transport_t *get_transport();
00040 
00041     void transport_write(uint8_t address, const uint8_t *outBuf, size_t outLen);
00042     void transport_read(uint8_t address, uint8_t *inBuf, size_t inLen);
00043 
00044     // Callbacks from munfc
00045     static void s_transport_write(uint8_t address, const uint8_t *outBuf, size_t outLen, void *pUser);
00046     static void s_transport_read(uint8_t address, uint8_t *inBuf, size_t inLen, void *pUser);
00047 
00048     nfc_transport_t _nfc_transport;
00049     mbed::SPI _spi;
00050     mbed::DigitalOut _ssel;
00051     mbed::InterruptIn _irq;
00052     mbed::DigitalOut _rst;
00053 };
00054 
00055 } // namespace nfc
00056 } // namespace mbed
00057 
00058 #endif