blob: 6bd6e09d169051e87830434dcba713a08f8540a8 (
plain) (
tree)
|
|
/* isr.inl
*
* This include file contains the static implementation of all
* inlined routines in the Interrupt Handler.
*
* COPYRIGHT (c) 1989-1998.
* On-Line Applications Research Corporation (OAR).
* Copyright assigned to U.S. Government, 1994.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#ifndef __ISR_inl
#define __ISR_inl
/*PAGE
*
* _ISR_Is_in_progress
*
* DESCRIPTION:
*
* This function returns TRUE if the processor is currently servicing
* and interrupt and FALSE otherwise. A return value of TRUE indicates
* that the caller is an interrupt service routine, NOT a thread. The
* directives available to an interrupt service routine are restricted.
*/
RTEMS_INLINE_ROUTINE boolean _ISR_Is_in_progress( void )
{
return (_ISR_Nest_level != 0);
}
/*PAGE
*
* _ISR_Is_vector_number_valid
*
* DESCRIPTION:
*
* This function returns TRUE if the vector is a valid vector number
* for this processor and FALSE otherwise.
*/
RTEMS_INLINE_ROUTINE boolean _ISR_Is_vector_number_valid (
unsigned32 vector
)
{
return ( vector <= CPU_INTERRUPT_MAXIMUM_VECTOR_NUMBER );
}
/*PAGE
*
* _ISR_Is_valid_user_handler
*
*
* DESCRIPTION:
*
* This function returns TRUE if handler is the entry point of a valid
* use interrupt service routine and FALSE otherwise.
*/
RTEMS_INLINE_ROUTINE boolean _ISR_Is_valid_user_handler (
void *handler
)
{
return ( handler != NULL);
}
#endif
/* end of include file */
|
