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/*  isr.inl

 *

 *  This include file contains the static implementation of all

 *  inlined routines in the Interrupt Handler.

 *

 *  COPYRIGHT (c) 1989-1999.

 *  On-Line Applications Research Corporation (OAR).

 *

 *  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: isr.inl,v 1.2 2001-09-27 11:59:34 chris Exp $

 */

#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.

 */

#if defined(powerpc)

#define CPU_PROVIDES_ISR_IS_IN_PROGRESS

#endif

#ifndef CPU_PROVIDES_ISR_IS_IN_PROGRESS

RTEMS_INLINE_ROUTINE boolean _ISR_Is_in_progress( void )

{

  return (_ISR_Nest_level != 0);

}

#else

#include 

#endif

/*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 */