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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [exec/] [posix/] [include/] [rtems/] [posix/] [intr.h] - Rev 30
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/* rtems/posix/intr.h * * This include file contains all the private support information for * POSIX Interrupt Manager. * * 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: intr.h,v 1.2 2001-09-27 11:59:14 chris Exp $ */ #ifndef __RTEMS_POSIX_KEY_h #define __RTEMS_POSIX_KEY_h #ifdef __cplusplus extern "C" { #endif #include <rtems/score/isr.h> #include <rtems/score/object.h> /* * Data Structure used to manage each POSIX Interrupt Vector */ typedef struct { int number_installed; int lock_count; int deferred_count; Chain_Control Handlers; } POSIX_Interrupt_Control; /* * Data Structure used to manage a POSIX Interrupt Handler */ typedef struct { Objects_Control Object; int is_active; intr_t vector; Thread_Control *server; int (*handler)( void *area ); volatile void *user_data_area; } POSIX_Interrupt_Handler_control; /* * The following defines the information control block used to manage * this class of objects. */ POSIX_EXTERN Objects_Information _POSIX_Interrupt_Handlers_Information; /* * The following is an array which is used to manage the set of * interrupt handlers installed on each vector. */ POSIX_EXTERN POSIX_Interrupt_Control _POSIX_Interrupt_Information[ ISR_NUMBER_OF_VECTORS ]; /* * _POSIX_Interrupt_Manager_initialization * * DESCRIPTION: * * This routine performs the initialization necessary for this manager. */ void _POSIX_Interrupt_Manager_initialization( unsigned32 maximum_interrupt_handlers ); /* * _POSIX_Interrupt_Allocate * * DESCRIPTION: * * This function allocates a interrupt handler control block from * the inactive chain of free interrupt handler control blocks. */ RTEMS_INLINE_ROUTINE POSIX_Interrupt_Handler_control * _POSIX_Interrupt_Allocate( void ); /* * _POSIX_Interrupt_Free * * DESCRIPTION: * * This routine frees a interrupt handler control block to the * inactive chain of free interrupt handler control blocks. */ RTEMS_INLINE_ROUTINE void _POSIX_Interrupt_Free ( POSIX_Interrupt_Handler_control *the_intr ); /* * _POSIX_Interrupt_Get * * DESCRIPTION: * * This function maps interrupt handler IDs to interrupt handler control * blocks. If ID corresponds to a local interrupt handler, then it returns * the_intr control pointer which maps to ID and location * is set to OBJECTS_LOCAL. if the interrupt handler ID is global and * resides on a remote node, then location is set to OBJECTS_REMOTE, * and the_intr is undefined. Otherwise, location is set * to OBJECTS_ERROR and the_intr is undefined. */ RTEMS_INLINE_ROUTINE POSIX_Interrupt_Control *_POSIX_Interrupt_Get ( Objects_Id id, Objects_Locations *location ); /* * _POSIX_Interrupt_Is_null * * DESCRIPTION: * * This function returns TRUE if the_intr is NULL and FALSE otherwise. */ RTEMS_INLINE_ROUTINE boolean _POSIX_Interrupt_Is_null ( POSIX_Interrupt_Handler_control *the_intr ); /* * _POSIX_Interrupt_Handler * * DESCRIPTION: * * This function XXX. */ void _POSIX_Interrupt_Handler( ISR_Vector_number vector ); #include <rtems/posix/intr.inl> #ifdef __cplusplus } #endif #endif /* end of include file */
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