Pn532NfcTransport.cpp

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/*
 * SPDX-License-Identifier: LGPL-3.0-or-later
 * Copyright (c) 2026 Cryptnox SA
 */

 
#include "Pn532NfcTransport.h"
 
static const uint32_t PN532_FW_IC_SHIFT  = 24U;
static const uint32_t PN532_FW_VER_SHIFT = 16U;
static const uint32_t PN532_FW_REV_SHIFT = 8U;
static const uint32_t PN532_BYTE_MASK    = 0xFFU;
 
Pn532NfcTransport::Pn532NfcTransport(pn532_t *dev, CW_Logger &logger)
    : m_dev(dev), m_logger(logger)
{
}
 
bool Pn532NfcTransport::begin()
{
    bool result = pn532_sam_config(m_dev);
    return result;
}
 
bool Pn532NfcTransport::inListPassiveTarget()
{
    bool result = (pn532_read_passive_target_id(m_dev, PN532_MIFARE_ISO14443A) != 0U);
    return result;
}
 
bool Pn532NfcTransport::sendAPDU(const uint8_t *apdu, uint8_t apduLen,
                                  uint8_t *response, uint8_t &responseLen)
{
    uint16_t len = static_cast<uint16_t>(responseLen);
    bool result = pn532_send_apdu(m_dev, apdu, apduLen, response, &len);
    responseLen = static_cast<uint8_t>((len > static_cast<uint16_t>(UINT8_MAX))
                                       ? static_cast<uint16_t>(UINT8_MAX) : len);
    return result;
}
 
bool Pn532NfcTransport::sendAPDULarge(const uint8_t *apdu, uint8_t apduLen,
                                       uint8_t *response, uint16_t &responseLen)
{
    bool result = pn532_send_apdu(m_dev, apdu, apduLen, response, &responseLen);
    return result;
}
 
void Pn532NfcTransport::resetReader()
{
    (void)pn532_release_target(m_dev);
}
 
bool Pn532NfcTransport::printFirmwareVersion()
{
    uint32_t version = pn532_get_firmware_version(m_dev);
    bool result = (version != 0U);
 
    if (result) {
        m_logger.print("PN5");
        m_logger.print(static_cast<uint8_t>((version >> PN532_FW_IC_SHIFT) & PN532_BYTE_MASK), HEX);
        m_logger.print(" firmware v");
        m_logger.print(static_cast<uint8_t>((version >> PN532_FW_VER_SHIFT) & PN532_BYTE_MASK));
        m_logger.print('.');
        m_logger.println(static_cast<uint8_t>((version >> PN532_FW_REV_SHIFT) & PN532_BYTE_MASK));
    }
 
    return result;
}