Sema4

Driver version
void	SEMA4_Init (SEMA4_Type *base)
	Initializes the SEMA4 module.
void	SEMA4_Deinit (SEMA4_Type *base)
	De-initializes the SEMA4 module.
status_t	SEMA4_TryLock (SEMA4_Type *base, uint8_t gateNum, uint8_t procNum)
	Tries to lock the SEMA4 gate.
void	SEMA4_Lock (SEMA4_Type *base, uint8_t gateNum, uint8_t procNum)
	Locks the SEMA4 gate.
status_t	SEMA4_ResetGate (SEMA4_Type *base, uint8_t gateNum)
	Resets the SEMA4 gate to an unlocked status.
status_t	SEMA4_ResetGateNotify (SEMA4_Type *base, uint8_t gateNum)
	Resets the SEMA4 gate IRQ notification.
#define	FSL_SEMA4_DRIVER_VERSION   (MAKE_VERSION(2, 0, 3))
	SEMA4 driver version.
#define	SEMA4_GATE_NUM_RESET_ALL   (64U)
	The number to reset all SEMA4 gates.
#define	SEMA4_GATEn(base, n)   (((volatile uint8_t *)(&((base)->Gate00)))[(n)])
	SEMA4 gate n register address.

Detailed Description

Function Documentation

SEMA4_Deinit()

void SEMA4_Deinit

(

SEMA4_Type *

base

)

De-initializes the SEMA4 module.

This function de-initializes the SEMA4 module. It only disables the clock.

Parameters

base	SEMA4 peripheral base address.

brief De-initializes the SEMA4 module.

This function de-initializes the SEMA4 module. It only disables the clock.

param base SEMA4 peripheral base address.

SEMA4_Init()

void SEMA4_Init

(

SEMA4_Type *

base

)

Initializes the SEMA4 module.

This function initializes the SEMA4 module. It only enables the clock but does not reset the gates because the module might be used by other processors at the same time. To reset the gates, call either SEMA4_ResetGate or SEMA4_ResetAllGates function.

Parameters

base	SEMA4 peripheral base address.

brief Initializes the SEMA4 module.

This function initializes the SEMA4 module. It only enables the clock but does not reset the gates because the module might be used by other processors at the same time. To reset the gates, call either SEMA4_ResetGate or SEMA4_ResetAllGates function.

param base SEMA4 peripheral base address.

SEMA4_Lock()

void SEMA4_Lock	(	SEMA4_Type *	base,
		uint8_t	gateNum,
		uint8_t	procNum
	)

Locks the SEMA4 gate.

This function locks the specific SEMA4 gate. If the gate has been locked by other processors, this function waits until it is unlocked and then lock it.

Parameters

base	SEMA4 peripheral base address.
gateNum	Gate number to lock.
procNum	Current processor number.

brief Locks the SEMA4 gate.

This function locks the specific SEMA4 gate. If the gate has been locked by other processors, this function waits until it is unlocked and then lock it.

param base SEMA4 peripheral base address. param gateNum Gate number to lock. param procNum Current processor number.

SEMA4_ResetGate()

status_t SEMA4_ResetGate	(	SEMA4_Type *	base,
		uint8_t	gateNum
	)

Resets the SEMA4 gate to an unlocked status.

This function resets a SEMA4 gate to an unlocked status.

Parameters

base	SEMA4 peripheral base address.
gateNum	Gate number.

Return values

kStatus_Success	SEMA4 gate is reset successfully.
kStatus_Fail	Some other reset process is ongoing.

brief Resets the SEMA4 gate to an unlocked status.

This function resets a SEMA4 gate to an unlocked status.

param base SEMA4 peripheral base address. param gateNum Gate number.

retval kStatus_Success SEMA4 gate is reset successfully. retval kStatus_Fail Some other reset process is ongoing.

SEMA4_ResetGateNotify()

status_t SEMA4_ResetGateNotify	(	SEMA4_Type *	base,
		uint8_t	gateNum
	)

Resets the SEMA4 gate IRQ notification.

This function resets a SEMA4 gate IRQ notification.

Parameters

base	SEMA4 peripheral base address.
gateNum	Gate number.

Return values

kStatus_Success	Reset successfully.
kStatus_Fail	Some other reset process is ongoing.

brief Resets the SEMA4 gate IRQ notification.

This function resets a SEMA4 gate IRQ notification.

param base SEMA4 peripheral base address. param gateNum Gate number.

retval kStatus_Success Reset successfully. retval kStatus_Fail Some other reset process is ongoing.

SEMA4_TryLock()

status_t SEMA4_TryLock	(	SEMA4_Type *	base,
		uint8_t	gateNum,
		uint8_t	procNum
	)

Tries to lock the SEMA4 gate.

This function tries to lock the specific SEMA4 gate. If the gate has been locked by another processor, this function returns an error code.

Parameters

base	SEMA4 peripheral base address.
gateNum	Gate number to lock.
procNum	Current processor number.

Return values

kStatus_Success	Lock the sema4 gate successfully.
kStatus_Fail	Sema4 gate has been locked by another processor.

brief Tries to lock the SEMA4 gate.

This function tries to lock the specific SEMA4 gate. If the gate has been locked by another processor, this function returns an error code.

param base SEMA4 peripheral base address. param gateNum Gate number to lock. param procNum Current processor number.

retval kStatus_Success Lock the sema4 gate successfully. retval kStatus_Fail Sema4 gate has been locked by another processor.