NfcAdapter.h

#ifndef NfcAdapter_h
#define NfcAdapter_h

#include <PN532Interface.h>
#include <PN532.h>
#include <NfcTag.h>
#include <Ndef.h>

// choose supported formats
#define NDEF_SUPPORT_MIFARE_CLASSIC
#define NDEF_SUPPORT_MIFARE_ULTRA

// Drivers
#ifdef NDEF_SUPPORT_MIFARE_CLASSIC
	#include <MifareClassic.h>
#endif
#ifdef NDEF_SUPPORT_MIFARE_ULTRA
	#include <MifareUltralight.h>
#endif


// tag types
#define TAG_TYPE_MIFARE_CLASSIC (0)
#define TAG_TYPE_1 (1)
#define TAG_TYPE_2 (2)
#define TAG_TYPE_3 (3)
#define TAG_TYPE_4 (4)
#define TAG_TYPE_UNKNOWN (99)

#define IRQ   (2)
#define RESET (3)  // Not connected by default on the NFC Shield

class NfcAdapter {
    public:
        NfcAdapter(PN532Interface &interface, uint8_t *staticBuf, unsigned int staticBufSize);

        ~NfcAdapter(void);
        void begin(boolean verbose=true);
        boolean tagPresent(unsigned long timeout=0); // tagAvailable
        NfcTag read();
        boolean write(NdefMessage& ndefMessage);
        // erase tag by writing an empty NDEF record
        boolean erase();
        // format a tag as NDEF
        boolean format();
        // reset tag back to factory state
        boolean clean();
    private:
        PN532* shield;
        byte uid[7];  // Buffer to store the returned UID
        unsigned int uidLength; // Length of the UID (4 or 7 bytes depending on ISO14443A card type)
		unsigned int _staticBufSize;
		uint8_t *_staticBuf;		
        unsigned int guessTagType();
};

#endif