CAAM Non-blocking RNG driver

Overview

This section describes the programming interface of the CAAM Non-blocking RNG driver.

Functions
status_t	CAAM_RNG_GetRandomDataNonBlocking (CAAM_Type *base, caam_handle_t *handle, caam_rng_state_handle_t stateHandle, caam_desc_rng_t descriptor, void *data, size_t dataSize, caam_rng_random_type_t dataType, caam_rng_generic256_t additionalEntropy)
	Request random data. More...

Function Documentation

status_t CAAM_RNG_GetRandomDataNonBlocking	(	CAAM_Type *	base,
		caam_handle_t *	handle,
		caam_rng_state_handle_t	stateHandle,
		caam_desc_rng_t	descriptor,
		void *	data,
		size_t	dataSize,
		caam_rng_random_type_t	dataType,
		caam_rng_generic256_t	additionalEntropy
	)

This function schedules the request for random data from CAAM RNG. Memory at memory pointers will be accessed by CAAM shortly after this function returns, according to actual CAAM schedule.

Parameters

	base	CAAM peripheral base address
	handle	RNG handle used for this request
	stateHandle	RNG state handle used to generate random data
[out]	descriptor	memory for CAAM commands
[out]	data	Pointer address used to store random data
	dataSize	Size of the buffer pointed by the data parameter, in bytes.
	dataType	Type of random data to be generated.
	additionalEntropy	NULL or Pointer to optional 256-bit additional entropy.

Returns

status of the request