Resource Protection Unit

Modules
	RPU_Registers

Functions
int	MXC_RPU_Allow (mxc_rpu_device_t periph, uint32_t allow_mask)
int	MXC_RPU_Disallow (mxc_rpu_device_t periph, uint32_t disallow_mask)
int	MXC_RPU_IsAllowed (void)

Detailed Description

Function Documentation

MXC_RPU_Allow()

int MXC_RPU_Allow	(	mxc_rpu_device_t	periph,
		uint32_t	allow_mask
	)

Enable access to peripherals restricted by the RPU This function must be called from handler (privileged) mode.

Parameters

periph	the peripheral to allow access too
allow_mask	which bus masters to allow to access periph

Returns

E_NO_ERROR If function is successful.

MXC_RPU_Disallow()

int MXC_RPU_Disallow	(	mxc_rpu_device_t	periph,
		uint32_t	disallow_mask
	)

Disable access to peripherals restricted by the RPU This function must be called from handler (privileged) mode.

Parameters

periph	the peripheral to revoke access too
disallow_mask	which bus masters to disallow access to periph

Returns

E_NO_ERROR if function is successful.

MXC_RPU_IsAllowed()

int MXC_RPU_IsAllowed

(

void

)

Check to see if this process is running in handler mode.

Returns

E_NO_RRROR If allowed.

E_BAD_STATE If not allowed.