Extended processing functions. More...

Functions
void	HAL_CRYPEx_Read_IVRegisters (CRYP_HandleTypeDef hcryp, uint8_t Output)
	In case of message processing suspension, read the Initialization Vector.
void	HAL_CRYPEx_Write_IVRegisters (CRYP_HandleTypeDef hcryp, uint8_t Input)
	In case of message processing resumption, rewrite the Initialization Vector in the AES_IVRx registers.
void	HAL_CRYPEx_Read_SuspendRegisters (CRYP_HandleTypeDef hcryp, uint8_t Output)
	In case of message GCM/GMAC (CCM/CMAC when applicable) processing suspension, read the Suspend Registers.
void	HAL_CRYPEx_Write_SuspendRegisters (CRYP_HandleTypeDef hcryp, uint8_t Input)
	In case of message GCM/GMAC (CCM/CMAC when applicable) processing resumption, rewrite the Suspend Registers in the AES_SUSPxR registers.
void	HAL_CRYPEx_Read_KeyRegisters (CRYP_HandleTypeDef hcryp, uint8_t Output, uint32_t KeySize)
	In case of message GCM/GMAC (CCM/CMAC when applicable) processing suspension, read the Key Registers.
void	HAL_CRYPEx_Write_KeyRegisters (CRYP_HandleTypeDef hcryp, uint8_t Input, uint32_t KeySize)
	In case of message GCM/GMAC (CCM/CMAC when applicable) processing resumption, rewrite the Key Registers in the AES_KEYRx registers.
void	HAL_CRYPEx_Read_ControlRegister (CRYP_HandleTypeDef hcryp, uint8_t Output)
	In case of message GCM/GMAC (CCM/CMAC when applicable) processing suspension, read the Control Register.
void	HAL_CRYPEx_Write_ControlRegister (CRYP_HandleTypeDef hcryp, uint8_t Input)
	In case of message GCM/GMAC (CCM/CMAC when applicable) processing resumption, rewrite the Control Registers in the AES_CR register.
void	HAL_CRYPEx_ProcessSuspend (CRYP_HandleTypeDef *hcryp)
	Request CRYP processing suspension when in polling or interruption mode.

Detailed Description

Extended processing functions.

  ==============================================================================
                    ##### AES extended suspension and resumption functions #####
  ==============================================================================
    [..]  This section provides functions allowing to:
      (+) save in memory the Initialization Vector, the Key registers, the Control register or
          the Suspend registers when a process is suspended by a higher priority message
      (+) write back in CRYP hardware block the saved values listed above when the suspended
          lower priority message processing is resumed.

Function Documentation

void HAL_CRYPEx_ProcessSuspend ( CRYP_HandleTypeDef * hcryp )

Request CRYP processing suspension when in polling or interruption mode.

Parameters:

hcryp,: pointer to a CRYP_HandleTypeDef structure that contains the configuration information for CRYP module.

Note:: Set the handle field SuspendRequest to the appropriate value so that the on-going CRYP processing is suspended as soon as the required conditions are met.; It is advised not to suspend the CRYP processing when the DMA controller is managing the data transfer

Return values:

None

Definition at line 2073 of file stm32l4xx_hal_cryp_ex.c.

void HAL_CRYPEx_Read_ControlRegister	(	CRYP_HandleTypeDef *	hcryp,
		uint8_t *	Output
	)

In case of message GCM/GMAC (CCM/CMAC when applicable) processing suspension, read the Control Register.

Parameters:

hcryp,:	pointer to a CRYP_HandleTypeDef structure that contains the configuration information for CRYP module.
Output,:	Pointer to the buffer containing the saved Control Register.

Note:: This values has to be stored for reuse by writing back the AES_CR register as soon as the interrupted processing has to be resumed.

Return values:

None

Definition at line 2040 of file stm32l4xx_hal_cryp_ex.c.

void HAL_CRYPEx_Read_IVRegisters	(	CRYP_HandleTypeDef *	hcryp,
		uint8_t *	Output
	)

In case of message processing suspension, read the Initialization Vector.

Parameters:

hcryp,:	pointer to a CRYP_HandleTypeDef structure that contains the configuration information for CRYP module.
Output,:	Pointer to the buffer containing the saved Initialization Vector.

Note:: This value has to be stored for reuse by writing the AES_IVRx registers as soon as the interrupted processing has to be resumed. Applicable to all chaining modes.; AES must be disabled when reading or resetting the IV values.

Return values:

None

Definition at line 1839 of file stm32l4xx_hal_cryp_ex.c.

void HAL_CRYPEx_Read_KeyRegisters	(	CRYP_HandleTypeDef *	hcryp,
		uint8_t *	Output,
		uint32_t	KeySize
	)

In case of message GCM/GMAC (CCM/CMAC when applicable) processing suspension, read the Key Registers.

Parameters:

hcryp,:	pointer to a CRYP_HandleTypeDef structure that contains the configuration information for CRYP module.
Output,:	Pointer to the buffer containing the saved Key Registers.
KeySize,:	Indicates the key size (128 or 256 bits).

Note:: These values have to be stored for reuse by writing back the AES_KEYRx registers as soon as the interrupted processing has to be resumed.

Return values:

None

Definition at line 1970 of file stm32l4xx_hal_cryp_ex.c.

void HAL_CRYPEx_Read_SuspendRegisters	(	CRYP_HandleTypeDef *	hcryp,
		uint8_t *	Output
	)

In case of message GCM/GMAC (CCM/CMAC when applicable) processing suspension, read the Suspend Registers.

Parameters:

hcryp,:	pointer to a CRYP_HandleTypeDef structure that contains the configuration information for CRYP module.
Output,:	Pointer to the buffer containing the saved Suspend Registers.

Note:: These values have to be stored for reuse by writing back the AES_SUSPxR registers as soon as the interrupted processing has to be resumed.

Return values:

None

Definition at line 1887 of file stm32l4xx_hal_cryp_ex.c.

References CRYP_BUSY_TIMEOUTVALUE, CRYP_WaitOnBusyFlagReset(), and HAL_CRYP_ErrorCallback().

void HAL_CRYPEx_Write_ControlRegister	(	CRYP_HandleTypeDef *	hcryp,
		uint8_t *	Input
	)

In case of message GCM/GMAC (CCM/CMAC when applicable) processing resumption, rewrite the Control Registers in the AES_CR register.

Parameters:

hcryp,:	pointer to a CRYP_HandleTypeDef structure that contains the configuration information for CRYP module.
Input,:	Pointer to the buffer containing the saved Control Register to write back in the CRYP hardware block.

Return values:

None

Definition at line 2054 of file stm32l4xx_hal_cryp_ex.c.

void HAL_CRYPEx_Write_IVRegisters	(	CRYP_HandleTypeDef *	hcryp,
		uint8_t *	Input
	)

In case of message processing resumption, rewrite the Initialization Vector in the AES_IVRx registers.

Parameters:

hcryp,:	pointer to a CRYP_HandleTypeDef structure that contains the configuration information for CRYP module.
Input,:	Pointer to the buffer containing the saved Initialization Vector to write back in the CRYP hardware block.

Note:: Applicable to all chaining modes.; AES must be disabled when reading or resetting the IV values.

Return values:

None

Definition at line 1863 of file stm32l4xx_hal_cryp_ex.c.

void HAL_CRYPEx_Write_KeyRegisters	(	CRYP_HandleTypeDef *	hcryp,
		uint8_t *	Input,
		uint32_t	KeySize
	)

In case of message GCM/GMAC (CCM/CMAC when applicable) processing resumption, rewrite the Key Registers in the AES_KEYRx registers.

Parameters:

hcryp,:	pointer to a CRYP_HandleTypeDef structure that contains the configuration information for CRYP module.
Input,:	Pointer to the buffer containing the saved key registers to write back in the CRYP hardware block.
KeySize,:	Indicates the key size (128 or 256 bits)

Return values:

None

Definition at line 2005 of file stm32l4xx_hal_cryp_ex.c.

void HAL_CRYPEx_Write_SuspendRegisters	(	CRYP_HandleTypeDef *	hcryp,
		uint8_t *	Input
	)

In case of message GCM/GMAC (CCM/CMAC when applicable) processing resumption, rewrite the Suspend Registers in the AES_SUSPxR registers.

Parameters:

hcryp,:	pointer to a CRYP_HandleTypeDef structure that contains the configuration information for CRYP module.
Input,:	Pointer to the buffer containing the saved suspend registers to write back in the CRYP hardware block.

Return values:

None

Definition at line 1938 of file stm32l4xx_hal_cryp_ex.c.

Functions

Detailed Description

Function Documentation