modules/woz_nfc/src/pn532

Overview

PN532-specific ISO 7816 APDU adaptation. The Aliro stack (including the prebuilt library) negotiates sizes with the User Device, but has no API for the reader controller's smaller local limit. This adapter keeps that hardware constraint at the transport boundary.

used by pn532_apdu.c transport_pn532.cpp

API

C`struct woz_pn532_apdu_plan`

modules/woz_nfc/src/pn532_apdu.h:38

State machine for chunking an ISO 7816 APDU across multiple SPI frames: tracks input buffer, payload offset and length, amount emitted, expected response length (Le), and mode flags (extended-length, has-Le). Used by the PN532 driver to split oversized commands.

#`#define WOZ_PN532_APDU_WIRE_MAX 240`

modules/woz_nfc/src/pn532_apdu.h:19

#`#define WOZ_PN532_ENVELOPE_DATA_MAX (WOZ_PN532_APDU_WIRE_MAX - 9)`

modules/woz_nfc/src/pn532_apdu.h:20

#`#define WOZ_PN532_RESPONSE_DATA_MAX 240`

modules/woz_nfc/src/pn532_apdu.h:25

C`enum woz_pn532_apdu_mode`

modules/woz_nfc/src/pn532_apdu.h:27

F`int woz_pn532_apdu_plan_init(const uint8_t input, size_t input_length, struct woz_pn532_apdu_plan plan)`

modules/woz_nfc/src/pn532_apdu.h:55

F`int woz_pn532_apdu_plan_next(struct woz_pn532_apdu_plan plan, uint8_t output, size_t output_capacity, size_t output_length, bool more_internal)`

modules/woz_nfc/src/pn532_apdu.h:60

Overview

API

Cstruct woz_pn532_apdu_plan

##define WOZ_PN532_APDU_WIRE_MAX 240

##define WOZ_PN532_ENVELOPE_DATA_MAX (WOZ_PN532_APDU_WIRE_MAX - 9)

##define WOZ_PN532_RESPONSE_DATA_MAX 240

Cenum woz_pn532_apdu_mode

Fint woz_pn532_apdu_plan_init(const uint8_t *input, size_t input_length, struct woz_pn532_apdu_plan *plan)