uint8_t PN532::mifareclassic_ReadDataBlock (uint8_t blockNumber, uint8_t *data)
{
DMSG("Trying to read 16 bytes from block ");
DMSG_INT(blockNumber);
/* Prepare the command */
pn532_packetbuffer[0] = PN532_COMMAND_INDATAEXCHANGE;
pn532_packetbuffer[1] = 1; /* Card number */
pn532_packetbuffer[2] = MIFARE_CMD_READ; /* Mifare Read command = 0x30 */
pn532_packetbuffer[3] = blockNumber; /* Block Number (0..63 for 1K, 0..255 for 4K) */
/* Send the command */
if (HAL(writeCommand)(pn532_packetbuffer, 4)) {
return 0;
}
/* Read the response packet */
HAL(readResponse)(pn532_packetbuffer, sizeof(pn532_packetbuffer));
/* If byte 8 isn't 0x00 we probably have an error */
if (pn532_packetbuffer[0] != 0x00) {
return 0;
}
/* Copy the 16 data bytes to the output buffer */
/* Block content starts at byte 9 of a valid response */
memcpy (data, pn532_packetbuffer + 1, 16);
return 1;
}
NfcTag NfcAdapter::read()
{
uint8_t type = guessTagType();
// TODO need an abstraction of Driver
if (type == TAG_TYPE_MIFARE_CLASSIC)
{
#ifdef NDEF_DEBUG
DMSG("Reading Mifare Classic");
#endif
MifareClassic mifareClassic = MifareClassic(*shield);
return mifareClassic.read(uid, uidLength);
}
else if (type == TAG_TYPE_2)
{
#ifdef NDEF_DEBUG
DMSG("Reading Mifare Ultralight");
#endif
MifareUltralight ultralight = MifareUltralight(*shield);
return ultralight.read(uid, uidLength);
}
else if (type == TAG_TYPE_UNKNOWN)
{
DMSG("Can not determine tag type");
//DMSG("Can not determine tag type for ATQA 0x");
//Serial.print(atqa, HEX);DMSG(" SAK 0x");DMSG(sak, HEX);
return NfcTag(uid, uidLength);
}
else
{
DMSG("No driver for card type ");
DMSG_INT(type);
// TODO should set type here
return NfcTag(uid, uidLength);
}
}
