[cpu] CPU

Functions
uint32_t	CPUcpsid (void)
	Disable all external interrupts. More...
uint32_t	CPUprimask (void)
	Get the current interrupt state. More...
uint32_t	CPUcpsie (void)
	Enable all external interrupts. More...
static void	CPUwfi (void)
	Wait for interrupt. More...
static void	CPUwfe (void)
	Wait for event. More...
static void	CPUsev (void)
	Send event. More...
static void	CPUbasepriSet (uint32_t ui32NewBasepri)
	Update the interrupt priority disable level. More...
uint32_t	CPUbasepriGet (void)
	Get the interrupt priority disable level. More...
void	CPUdelay (uint32_t ui32Count)
	Provide a small delay. More...

Detailed Description

Function Documentation

uint32_t CPUbasepriGet

(

void

)

Get the interrupt priority disable level.

Use this function to get the the level of priority that will disable interrupts with a lower priority level.

Returns

Returns the value of the BASEPRI register.

Definition at line 298 of file cpu.c.

Referenced by IntPriorityMaskGet().

static void CPUbasepriSet ( uint32_t  ui32NewBasepri )

inlinestatic

Update the interrupt priority disable level.

Use this function to change the level of priority that will disable interrupts with a lower priority level.

Parameters

ui32NewBasepri

is the new basis priority level to set.

Returns

None

Definition at line 294 of file cpu.h.

Referenced by IntPriorityMaskSet().

uint32_t CPUcpsid

(

void

)

Disable all external interrupts.

Use this function to disable all system interrupts. This function is implemented as a wrapper function for the CPSID instruction.

Returns

Returns the state of PRIMASK on entry

Definition at line 68 of file cpu.c.

Referenced by AuxAdiDdiSafeRead(), AuxAdiDdiSafeWrite(), IntMasterDisable(), SafeHapiAuxAdiSelect(), and SysCtrlSystemReset().

uint32_t CPUcpsie

(

void

)

Enable all external interrupts.

Use this function to enable all system interrupts. This function is implemented as a wrapper function for the CPSIE instruction.

Returns

Returns the state of PRIMASK on entry.

Definition at line 220 of file cpu.c.

Referenced by AuxAdiDdiSafeRead(), AuxAdiDdiSafeWrite(), IntMasterEnable(), and SafeHapiAuxAdiSelect().

void CPUdelay

(

uint32_t

ui32Count

)

Provide a small delay.

This function provides means for generating a constant length delay. It is written in assembly to keep the delay consistent across tool chains, avoiding the need to tune the delay based on the tool chain in use.

The loop takes 3 cycles/loop.

Parameters

ui32Count

is the number of delay loop iterations to perform.

Returns

None

Definition at line 372 of file cpu.c.

Referenced by CRYPTOAesEcb(), CRYPTOAesLoadKey(), CRYPTOCcmAuthEncrypt(), CRYPTOCcmAuthEncryptResultGet(), CRYPTOCcmInvAuthDecrypt(), CRYPTOCcmInvAuthDecryptResultGet(), and I2CMasterControl().

uint32_t CPUprimask

(

void

)

Get the current interrupt state.

Use this function to retrieve the current state of the interrupts. This function is implemented as a wrapper function returning the state of PRIMASK.

Returns

Returns the state of the PRIMASK (indicating whether interrupts are enabled or disabled).

Definition at line 146 of file cpu.c.

static void CPUsev ( void  )

inlinestatic

Send event.

Use this function to let the System CPU send an event. This function is implemented as a wrapper function for the SEV instruction.

Returns

None

Definition at line 242 of file cpu.h.

static void CPUwfe ( void  )

inlinestatic

Wait for event.

Use this function to let the System CPU wait for the next event. This function is implemented as a wrapper function for the WFE instruction.

Returns

None

Definition at line 193 of file cpu.h.

static void CPUwfi ( void  )

inlinestatic

Wait for interrupt.

Use this function to let the System CPU wait for the next interrupt. This function is implemented as a wrapper function for the WFI instruction.

Returns

None

Definition at line 144 of file cpu.h.

Referenced by PRCMDeepSleep(), and PRCMSleep().