unleashed-firmware/lib/nfc/protocols/iso14443_3b/iso14443_3b_poller.h
gornekich a7b60bf2a6
MFC emulation fixes (#3324)
* mf classic listener: fix write block
* nfc: go to idle state instead of sleep
* lib nfc: fix documentation
2023-12-29 12:24:20 +09:00

90 lines
2.8 KiB
C

#pragma once
#include "iso14443_3b.h"
#include <lib/nfc/nfc.h>
#include <nfc/nfc_poller.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Iso14443_3bPoller opaque type definition.
*/
typedef struct Iso14443_3bPoller Iso14443_3bPoller;
/**
* @brief Enumeration of possible Iso14443_3b poller event types.
*/
typedef enum {
Iso14443_3bPollerEventTypeError, /**< An error occured during activation procedure. */
Iso14443_3bPollerEventTypeReady, /**< The card was activated by the poller. */
} Iso14443_3bPollerEventType;
/**
* @brief Iso14443_3b poller event data.
*/
typedef union {
Iso14443_3bError error; /**< Error code indicating card activation fail reason. */
} Iso14443_3bPollerEventData;
/**
* @brief Iso14443_3b poller event structure.
*
* Upon emission of an event, an instance of this struct will be passed to the callback.
*/
typedef struct {
Iso14443_3bPollerEventType type; /**< Type of emmitted event. */
Iso14443_3bPollerEventData* data; /**< Pointer to event specific data. */
} Iso14443_3bPollerEvent;
/**
* @brief Transmit and receive Iso14443_3b frames in poller mode.
*
* Must ONLY be used inside the callback function.
*
* The rx_buffer will be filled with any data received as a response to data
* sent from tx_buffer, with a timeout defined by the fwt parameter.
*
* @param[in, out] instance pointer to the instance to be used in the transaction.
* @param[in] tx_buffer pointer to the buffer containing the data to be transmitted.
* @param[out] rx_buffer pointer to the buffer to be filled with received data.
* @param[in] fwt frame wait time (response timeout), in carrier cycles.
* @return Iso14443_3bErrorNone on success, an error code on failure.
*/
Iso14443_3bError iso14443_3b_poller_send_frame(
Iso14443_3bPoller* instance,
const BitBuffer* tx_buffer,
BitBuffer* rx_buffer);
/**
* @brief Perform collision resolution procedure.
*
* Must ONLY be used inside the callback function.
*
* Perfoms the collision resolution procedure as defined in Iso14443-3b. The data
* field will be filled with Iso14443-3b data on success.
*
* @param[in, out] instance pointer to the instance to be used in the transaction.
* @param[out] data pointer to the Iso14443_3b data structure to be filled.
* @return Iso14443_3bErrorNone on success, an error code on failure.
*/
Iso14443_3bError iso14443_3b_poller_activate(Iso14443_3bPoller* instance, Iso14443_3bData* data);
/**
* @brief Send HALT command to the card.
*
* Must ONLY be used inside the callback function.
*
* Halts card and changes internal Iso14443_3bPoller state to Idle.
*
* @param[in, out] instance pointer to the instance to be used in the transaction.
* @return Iso14443_3bErrorNone on success, an error code on failure.
*/
Iso14443_3bError iso14443_3b_poller_halt(Iso14443_3bPoller* instance);
#ifdef __cplusplus
}
#endif