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Diffstat (limited to '')
-rw-r--r-- | cpukit/posix/include/rtems/posix/intr.h | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/cpukit/posix/include/rtems/posix/intr.h b/cpukit/posix/include/rtems/posix/intr.h new file mode 100644 index 0000000000..b940148999 --- /dev/null +++ b/cpukit/posix/include/rtems/posix/intr.h @@ -0,0 +1,154 @@ +/* rtems/posix/intr.h + * + * This include file contains all the private support information for + * POSIX Interrupt Manager. + * + * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. + * On-Line Applications Research Corporation (OAR). + * All rights assigned to U.S. Government, 1994. + * + * This material may be reproduced by or for the U.S. Government pursuant + * to the copyright license under the clause at DFARS 252.227-7013. This + * notice must appear in all copies of this file and its derivatives. + * + * $Id$ + */ + +#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. + */ + +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. + */ + +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. + */ + +STATIC INLINE 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. + */ + +STATIC INLINE 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. + */ + +STATIC INLINE 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. + */ + +STATIC INLINE 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 */ + |