twr_tag_nfc.h

#ifndef _TWR_TAG_NFC_H
#define _TWR_TAG_NFC_H
 
#include <twr_i2c.h>
 
 
 
#define TWR_TAG_NFC_I2C_ADDRESS_DEFAULT 0x08
 
#define TWR_TAG_NFC_BUFFER_SIZE 864
 
 
typedef struct
{
    twr_i2c_channel_t _i2c_channel;
    uint8_t _i2c_address;
 
} twr_tag_nfc_t;
 
 
typedef struct
{
    size_t _length;
    int _last_tnf_pos;
    uint16_t _encoded_size;
    uint8_t _buffer[TWR_TAG_NFC_BUFFER_SIZE];
 
} twr_tag_nfc_ndef_t;
 
 
bool twr_tag_nfc_init(twr_tag_nfc_t *self, twr_i2c_channel_t i2c_channel, uint8_t i2c_address);
 
 
bool twr_tag_nfc_memory_read(twr_tag_nfc_t *self, void *buffer, size_t length);
 
 
bool twr_tag_nfc_memory_write(twr_tag_nfc_t *self, void *buffer, size_t length);
 
 
bool twr_tag_nfc_memory_write_ndef(twr_tag_nfc_t *self, twr_tag_nfc_ndef_t *ndef);
 
 
void twr_tag_nfc_ndef_init(twr_tag_nfc_ndef_t *self);
 
 
bool twr_tag_nfc_ndef_add_text(twr_tag_nfc_ndef_t *self, const char *text, const char *encoding);
 
 
bool twr_tag_nfc_ndef_add_uri(twr_tag_nfc_ndef_t *self, const char *uri);
 
 
#endif // _TWR_TAG_NFC_H