NFC HAL library (private definitions). More...

#include <furi.h>
#include <furi_hal_nfc.h>
#include <furi_hal_spi.h>
#include <drivers/st25r3916.h>
#include <drivers/st25r3916_reg.h>

Go to the source code of this file.

Data Structures
struct	FuriHalNfcEventInternal
	NFC HAL internal event structure. More...

struct	FuriHalNfc
	NFC HAL global state structure. More...

Macros
#define	FURI_HAL_NFC_POLLER_FDT_COMP_FC (-500)
	Common frame delay time compensation for pollers.

#define	FURI_HAL_NFC_POLLER_FWT_COMP_FC (FURI_HAL_NFC_POLLER_FDT_COMP_FC)
	Common frame wait time compensation for pollers.

#define	FURI_HAL_NFC_EVENT_INTERNAL_ALL
	Special bitmask value of all internal events.

Enumerations
enum	FuriHalNfcEventInternalType { FuriHalNfcEventInternalTypeAbort = (1U << 0) , FuriHalNfcEventInternalTypeIrq = (1U << 1) , FuriHalNfcEventInternalTypeTimerFwtExpired , FuriHalNfcEventInternalTypeTimerBlockTxExpired , FuriHalNfcEventInternalTypeTransparentDataReceived }
	Enumeration containing bitmask values for NFC HAL internal events. More...

Functions
void	furi_hal_nfc_event_init (void)
	Initialise NFC HAL event system.

void	furi_hal_nfc_event_set (FuriHalNfcEventInternalType event)
	Forcibly emit (a) particular internal event(s).

void	furi_hal_nfc_init_gpio_isr (void)
	Initialise GPIO to generate an interrupt from the NFC hardware.

void	furi_hal_nfc_deinit_gpio_isr (void)
	Disable interrupts from the NFC hardware.

void	furi_hal_nfc_timers_init (void)
	Initialise all NFC timers.

void	furi_hal_nfc_timers_deinit (void)
	Disable all NFC timers.

uint32_t	furi_hal_nfc_get_irq (FuriHalSpiBusHandle *handle)
	Get the interrupt bitmask from the NFC hardware.

bool	furi_hal_nfc_event_wait_for_specific_irq (FuriHalSpiBusHandle *handle, uint32_t mask, uint32_t timeout_ms)
	Wait until a specified type of interrupt occurs.

FuriHalNfcEvent	furi_hal_nfc_wait_event_common (uint32_t timeout_ms)
	Wait for any event to occur.

FuriHalNfcError	furi_hal_nfc_common_listener_rx_start (FuriHalSpiBusHandle *handle)
	Start reception in listener mode.

FuriHalNfcError	furi_hal_nfc_common_fifo_tx (FuriHalSpiBusHandle handle, const uint8_t tx_data, size_t tx_bits)
	Transmit data using on-chip FIFO.

FuriHalNfcError	furi_hal_nfc_common_fifo_rx (FuriHalSpiBusHandle handle, uint8_t rx_data, size_t rx_data_size, size_t *rx_bits)
	Receive data using on-chip FIFO.

FuriHalNfcError	furi_hal_nfc_poller_tx_common (FuriHalSpiBusHandle handle, const uint8_t tx_data, size_t tx_bits)
	Transmit data in poller mode.

Variables
FuriHalNfc	furi_hal_nfc
	NFC HAL global state object declaration.

Detailed Description

NFC HAL library (private definitions).

This file is an implementation detail. It must not be included in any public API-related headers.

Macro Definition Documentation

◆ FURI_HAL_NFC_EVENT_INTERNAL_ALL

#define FURI_HAL_NFC_EVENT_INTERNAL_ALL

Value:

    ((FuriHalNfcEventInternalTypeAbort | FuriHalNfcEventInternalTypeIrq | \
      FuriHalNfcEventInternalTypeTimerFwtExpired |                        \
      FuriHalNfcEventInternalTypeTimerBlockTxExpired |                    \
      FuriHalNfcEventInternalTypeTransparentDataReceived))

Special bitmask value of all internal events.

Enumeration Type Documentation

◆ FuriHalNfcEventInternalType

enum FuriHalNfcEventInternalType

Enumeration containing bitmask values for NFC HAL internal events.

Enumerator
FuriHalNfcEventInternalTypeAbort	Abort waiting for hardware events.
FuriHalNfcEventInternalTypeIrq	NFC hardware interrupt has occurred.
FuriHalNfcEventInternalTypeTimerFwtExpired	Frame wait time timeout has expired.
FuriHalNfcEventInternalTypeTimerBlockTxExpired	Transmission block timeout has expired.
FuriHalNfcEventInternalTypeTransparentDataReceived	Data was received in transparent mode.

Function Documentation

◆ furi_hal_nfc_common_fifo_rx()

FuriHalNfcError furi_hal_nfc_common_fifo_rx	(	FuriHalSpiBusHandle *	handle,
		uint8_t *	rx_data,
		size_t	rx_data_size,
		size_t *	rx_bits )

Receive data using on-chip FIFO.

This function is common to all technologies.

Parameters

[in,out]	handle	pointer to the SPI handle associated with the NFC chip.
[out]	rx_data	pointer to a byte array to be filled with received data.
[in]	rx_data_size	maximum received data size, in bytes.
[out]	rx_bits	pointer to the variable to contain the received data size, in bits.

Returns: FuriHalNfcErrorNone on success, any other error code on failure.

◆ furi_hal_nfc_common_fifo_tx()

FuriHalNfcError furi_hal_nfc_common_fifo_tx	(	FuriHalSpiBusHandle *	handle,
		const uint8_t *	tx_data,
		size_t	tx_bits )

Transmit data using on-chip FIFO.

This function is common to all technologies.

Parameters

[in,out]	handle	pointer to the SPI handle associated with the NFC chip.
[in]	tx_data	pointer to a byte array containing the data to be transmitted.
[in]	tx_bits	transmit data size, in bits.

Returns: FuriHalNfcErrorNone on success, any other error code on failure.

◆ furi_hal_nfc_common_listener_rx_start()

FuriHalNfcError furi_hal_nfc_common_listener_rx_start ( FuriHalSpiBusHandle * handle )

Start reception in listener mode.

This function is common to all technologies.

Parameters

[in,out] handle pointer to the SPI handle associated with the NFC chip.

Returns: FuriHalNfcErrorNone on success, any other error code on failure.

◆ furi_hal_nfc_event_set()

void furi_hal_nfc_event_set ( FuriHalNfcEventInternalType event )

Forcibly emit (a) particular internal event(s).

Parameters

[in] event bitmask of one or more events to be emitted.

◆ furi_hal_nfc_event_wait_for_specific_irq()

bool furi_hal_nfc_event_wait_for_specific_irq	(	FuriHalSpiBusHandle *	handle,
		uint32_t	mask,
		uint32_t	timeout_ms )

Wait until a specified type of interrupt occurs.

Parameters

[in,out]	handle	pointer to the SPI handle associated with the NFC chip.
[in]	mask	bitmask of one or more interrupts to wait for.
[in]	timeout_ms	maximum time to wait for an interrupt, in milliseconds.

Returns: true if specified interrupt(s) have occured within timeout, false otherwise.

◆ furi_hal_nfc_get_irq()

uint32_t furi_hal_nfc_get_irq ( FuriHalSpiBusHandle * handle )

Get the interrupt bitmask from the NFC hardware.

Parameters

[in,out] handle pointer to the SPI handle associated with the NFC chip.

Returns: bitmask of zero or more occurred interrupts.

◆ furi_hal_nfc_poller_tx_common()

FuriHalNfcError furi_hal_nfc_poller_tx_common	(	FuriHalSpiBusHandle *	handle,
		const uint8_t *	tx_data,
		size_t	tx_bits )

Transmit data in poller mode.

This function is common to all technologies.

Parameters

[in,out]	handle	pointer to the SPI handle associated with the NFC chip.
[in]	tx_data	pointer to a byte array containing the data to be transmitted.
[in]	tx_bits	transmit data size, in bits.

Returns: FuriHalNfcErrorNone on success, any other error code on failure.

◆ furi_hal_nfc_wait_event_common()

FuriHalNfcEvent furi_hal_nfc_wait_event_common ( uint32_t timeout_ms )

Wait for any event to occur.

This function is common to all technologies.

Parameters

[in] timeout_ms maximum time to wait for an event, in milliseconds.

Returns: bitmask of zero or more occurred events.

Data Structures

Macros

Enumerations

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ FURI_HAL_NFC_EVENT_INTERNAL_ALL

Enumeration Type Documentation

◆ FuriHalNfcEventInternalType

Function Documentation

◆ furi_hal_nfc_common_fifo_rx()

◆ furi_hal_nfc_common_fifo_tx()

◆ furi_hal_nfc_common_listener_rx_start()

◆ furi_hal_nfc_event_set()

◆ furi_hal_nfc_event_wait_for_specific_irq()

◆ furi_hal_nfc_get_irq()

◆ furi_hal_nfc_poller_tx_common()

◆ furi_hal_nfc_wait_event_common()