CW_NfcTransport Class Reference

Abstract interface for NFC transport operations. More...

#include <CW_NfcTransport.h>

Public Member Functions
virtual bool	begin ()=0
	Initialize the NFC transport hardware.
virtual bool	inListPassiveTarget ()=0
	Detect the presence of a passive ISO-DEP NFC target.
virtual bool	sendAPDU (const uint8_t *apdu, uint8_t apduLen, uint8_t *response, uint8_t &responseLen)=0
	Send an APDU command to the card and receive the response.
virtual bool	sendAPDULarge (const uint8_t *apdu, uint8_t apduLen, uint8_t *response, uint16_t &responseLen)
	Send an APDU and receive a response that may exceed 255 bytes.
virtual void	resetReader ()=0
	Reset the NFC reader/field for the next card detection cycle.
virtual bool	printFirmwareVersion ()=0
	Print NFC module firmware version information to the logger.
virtual	~CW_NfcTransport ()

Detailed Description

Abstract interface for NFC transport operations.

Defines the hardware-agnostic contract for NFC communication so that CW_SecureChannel and CryptnoxWallet remain independent of the physical NFC module (PN532, PN7150, etc.).

Definition at line 40 of file CW_NfcTransport.h.

Constructor & Destructor Documentation

~CW_NfcTransport()

virtual CW_NfcTransport::~CW_NfcTransport ( )

inlinevirtual

Definition at line 103 of file CW_NfcTransport.h.

Member Function Documentation

begin()

virtual bool CW_NfcTransport::begin ( )

pure virtual

Initialize the NFC transport hardware.

Returns

true if initialization succeeded, false otherwise.

inListPassiveTarget()

virtual bool CW_NfcTransport::inListPassiveTarget ( )

pure virtual

Detect the presence of a passive ISO-DEP NFC target.

Returns

true if a card is detected, false otherwise.

printFirmwareVersion()

virtual bool CW_NfcTransport::printFirmwareVersion ( )

pure virtual

Print NFC module firmware version information to the logger.

Returns

true if firmware info was retrieved successfully, false otherwise.

resetReader()

virtual void CW_NfcTransport::resetReader ( )

pure virtual

Reset the NFC reader/field for the next card detection cycle.

sendAPDU()

virtual bool CW_NfcTransport::sendAPDU ( const uint8_t * apdu, uint8_t apduLen, uint8_t * response, uint8_t & responseLen )

pure virtual

Send an APDU command to the card and receive the response.

Parameters

[in]	apdu	APDU command bytes.
[in]	apduLen	Length of the APDU command.
[out]	response	Buffer to receive the card response.
[out]	responseLen	Actual number of bytes written to response.

Returns

true if the exchange succeeded, false otherwise.

Referenced by sendAPDULarge().

sendAPDULarge()

virtual bool CW_NfcTransport::sendAPDULarge ( const uint8_t * apdu, uint8_t apduLen, uint8_t * response, uint16_t & responseLen )

inlinevirtual

Send an APDU and receive a response that may exceed 255 bytes.

Used for APDUs whose DataOut can be larger than a uint8_t can express (e.g. GET_MANUFACTURER_CERTIFICATE returns up to 415 bytes). Implementations that cannot deliver more than 255 bytes may delegate to sendAPDU; the default below does exactly that.

Parameters

[in]	apdu	APDU command bytes.
[in]	apduLen	Length of the APDU command.
[out]	response	Buffer to receive the card response.
[in,out]	responseLen	On entry: capacity of response. On exit: actual bytes written.

Returns

true if the exchange succeeded, false otherwise.

Definition at line 81 of file CW_NfcTransport.h.

References sendAPDU().

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The documentation for this class was generated from the following file:

• CW_NfcTransport.h