Interrupts

Modules
	Interrupt Locks
	Low-level lock to protect critical sections accessed by threads and interrupt service routines.
	Interrupt Manager Extension

Files
file	intr.h
file	intrbody.c
	RTEMS Interrupt Support.
file	intrcatch.c
	RTEMS Interrupt Catch.

Macros
#define	rtems_interrupt_disable(_isr_cookie)   _ISR_Local_disable(_isr_cookie)
	Disable RTEMS Interrupt. More...
#define	rtems_interrupt_enable(_isr_cookie)   _ISR_Local_enable(_isr_cookie)
	Enable RTEMS Interrupt. More...
#define	rtems_interrupt_flash(_isr_cookie)   _ISR_Local_flash(_isr_cookie)
	Flash RTEMS Interrupt. More...
#define	rtems_interrupt_local_disable(_isr_cookie)   _ISR_Local_disable( _isr_cookie )
	This macro disables the interrupts on the current processor. More...
#define	rtems_interrupt_local_enable(_isr_cookie)   _ISR_Local_enable( _isr_cookie )
	This macro restores the previous interrupt level on the current processor. More...
#define	rtems_interrupt_is_in_progress()   _ISR_Is_in_progress()
	RTEMS Interrupt Is in Progress. More...
#define	rtems_interrupt_cause(_interrupt_to_cause)
	This routine generates an interrupt. More...
#define	rtems_interrupt_clear(_interrupt_to_clear)
	This routine clears the specified interrupt. More...

Typedefs
typedef ISR_Level	rtems_interrupt_level
	Interrupt level type.
typedef ISR_Vector_number	rtems_vector_number
	Control block type used to manage the vectors.
typedef ISR_Handler	rtems_isr
	Return type for interrupt handler.
typedef ISR_Handler_entry	rtems_isr_entry

Detailed Description

This encapsulates functionality related to the Classic API Interrupt Manager.

Macro Definition Documentation

rtems_interrupt_cause

#define rtems_interrupt_cause

(

_interrupt_to_cause

)

This routine generates an interrupt.

Note

No implementation.

rtems_interrupt_clear

#define rtems_interrupt_clear

(

_interrupt_to_clear

)

This routine clears the specified interrupt.

Note

No implementation.

rtems_interrupt_disable

#define rtems_interrupt_disable

(

_isr_cookie

)

_ISR_Local_disable(_isr_cookie)

Disable RTEMS Interrupt.

Note

The interrupt level shall be of type rtems_interrupt_level.

This macro is only available on uni-processor configurations. The macro rtems_interrupt_local_disable() is available on all configurations.

rtems_interrupt_enable

#define rtems_interrupt_enable

(

_isr_cookie

)

_ISR_Local_enable(_isr_cookie)

Enable RTEMS Interrupt.

Note

The interrupt level shall be of type rtems_interrupt_level.

This macro is only available on uni-processor configurations. The macro rtems_interrupt_local_enable() is available on all configurations.

rtems_interrupt_flash

#define rtems_interrupt_flash

(

_isr_cookie

)

_ISR_Local_flash(_isr_cookie)

Flash RTEMS Interrupt.

Note

The interrupt level shall be of type rtems_interrupt_level.

This macro is only available on uni-processor configurations. The macro rtems_interrupt_local_disable() and rtems_interrupt_local_enable() is available on all configurations.

rtems_interrupt_is_in_progress

bool rtems_interrupt_is_in_progress

(

void

)

_ISR_Is_in_progress()

RTEMS Interrupt Is in Progress.

A return value of true indicates that the caller is an interrupt service routine and not a thread. The directives available to an interrupt service routine are restricted.

rtems_interrupt_local_disable

#define rtems_interrupt_local_disable

(

_isr_cookie

)

_ISR_Local_disable( _isr_cookie )

This macro disables the interrupts on the current processor.

On SMP configurations this will not ensure system wide mutual exclusion. Use interrupt locks instead.

Parameters

[in]

_isr_cookie

The previous interrupt level is returned. The type of this variable must be rtems_interrupt_level.

See also

rtems_interrupt_local_enable().

rtems_interrupt_local_enable

#define rtems_interrupt_local_enable

(

_isr_cookie

)

_ISR_Local_enable( _isr_cookie )

This macro restores the previous interrupt level on the current processor.

Parameters

[in]

_isr_cookie

The previous interrupt level returned by rtems_interrupt_local_disable().