MFD Infineon MXCRYPTO interface

Files
file	infineon_mxcrypto.h
	Public API for MXCRYPTO MFD driver.

Functions
CRYPTO_Type *	mfd_infineon_mxcrypto_get_base (const struct device *dev)
	Get the MXCRYPTO register base address.
int	mfd_infineon_mxcrypto_lock (const struct device *dev, k_timeout_t timeout)
	Acquire the shared MXCRYPTO access mutex.
void	mfd_infineon_mxcrypto_unlock (const struct device *dev)
	Release the shared MXCRYPTO access mutex.

Detailed Description

Function Documentation

mfd_infineon_mxcrypto_get_base()

CRYPTO_Type * mfd_infineon_mxcrypto_get_base

(

const struct device *

dev

)

#include <zephyr/drivers/mfd/infineon_mxcrypto.h>

Get the MXCRYPTO register base address.

The base address is shared by the TRNG and crypto (AES / SHA) child functions of the MXCRYPTO block.

Parameters

[in]

dev

Pointer to the parent MFD device.

Returns

Pointer to the CRYPTO register block.

mfd_infineon_mxcrypto_lock()

int mfd_infineon_mxcrypto_lock	(	const struct device *	dev,
		k_timeout_t	timeout )

#include <zephyr/drivers/mfd/infineon_mxcrypto.h>

Acquire the shared MXCRYPTO access mutex.

The TRNG and crypto child functions share a single hardware block, so a child must hold this lock for the duration of any multi-step hardware operation that must not be interleaved with the sibling function.

Parameters

[in]	dev	Pointer to the parent MFD device.
[in]	timeout	Lock acquisition timeout.

Return values

0	on success.
-EAGAIN	if the lock could not be acquired within timeout.

mfd_infineon_mxcrypto_unlock()

void mfd_infineon_mxcrypto_unlock

(

const struct device *

dev

)

#include <zephyr/drivers/mfd/infineon_mxcrypto.h>

Release the shared MXCRYPTO access mutex.

Parameters

[in]

dev

Pointer to the parent MFD device.