diff options
Diffstat (limited to 'cpukit/score/include/rtems/score/isr.h')
| -rw-r--r-- | cpukit/score/include/rtems/score/isr.h | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/cpukit/score/include/rtems/score/isr.h b/cpukit/score/include/rtems/score/isr.h deleted file mode 100644 index d9c03b807f..0000000000 --- a/cpukit/score/include/rtems/score/isr.h +++ /dev/null @@ -1,155 +0,0 @@ -/** - * @file rtems/score/isr.h - * - * @brief Data Related to the Management of Processor Interrupt Levels - * - * This include file contains all the constants and structures associated - * with the management of processor interrupt levels. This handler - * supports interrupt critical sections, vectoring of user interrupt - * handlers, nesting of interrupts, and manipulating interrupt levels. - */ - -/* - * COPYRIGHT (c) 1989-2012. - * 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.rtems.org/license/LICENSE. - */ - -#ifndef _RTEMS_SCORE_ISR_H -#define _RTEMS_SCORE_ISR_H - -#include <rtems/score/isrlevel.h> - -/** - * @defgroup ScoreISR ISR Handler - * - * @ingroup Score - * - * This handler encapsulates functionality which provides the foundation - * ISR services used in all of the APIs supported by RTEMS. - * - * The ISR Nest level counter variable is maintained as part of the - * per cpu data structure. - */ -/**@{*/ - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * The following type defines the type used to manage the vectors. - */ -typedef uint32_t ISR_Vector_number; - -/** - * Return type for ISR Handler - */ -typedef void ISR_Handler; - -#if (CPU_SIMPLE_VECTORED_INTERRUPTS == FALSE) - -typedef void * ISR_Handler_entry; - -#else -/** - * Pointer to an ISR Handler - */ -#if (CPU_ISR_PASSES_FRAME_POINTER == TRUE) -typedef ISR_Handler ( *ISR_Handler_entry )( - ISR_Vector_number, - CPU_Interrupt_frame * - ); -#else -typedef ISR_Handler ( *ISR_Handler_entry )( - ISR_Vector_number - ); -#endif - -/** - * The following declares the Vector Table. Application - * interrupt service routines are vectored by the ISR Handler via this table. - */ -extern ISR_Handler_entry _ISR_Vector_table[ CPU_INTERRUPT_NUMBER_OF_VECTORS ]; -#endif - -/** - * @brief Initialize the ISR handler. - * - * This routine performs the initialization necessary for the ISR handler. - */ -void _ISR_Handler_initialization ( void ); - -/** - * @brief Install interrupt handler vector. - * - * This routine installs new_handler as the interrupt service routine - * for the specified vector. The previous interrupt service routine is - * returned as old_handler. - * - * LM32 Specific Information: - * XXX document implementation including references if appropriate - * - * @param[in] _vector is the vector number - * @param[in] _new_handler is ISR handler to install - * @param[in] _old_handler is a pointer to a variable which will be set - * to the old handler - * - * @retval *_old_handler will be set to the old ISR handler - */ -#define _ISR_Install_vector( _vector, _new_handler, _old_handler ) \ - _CPU_ISR_install_vector( _vector, _new_handler, _old_handler ) - -/** - * @brief ISR interrupt dispatcher. - * - * This routine is the interrupt dispatcher. ALL interrupts - * are vectored to this routine so that minimal context can be saved - * and setup performed before the application's high-level language - * interrupt service routine is invoked. After the application's - * interrupt service routine returns control to this routine, it - * will determine if a thread dispatch is necessary. If so, it will - * ensure that the necessary thread scheduling operations are - * performed when the outermost interrupt service routine exits. - * - * @note Typically implemented in assembly language. - */ -void _ISR_Handler( void ); - -/** - * @brief ISR wrapper for thread dispatcher. - * - * This routine provides a wrapper so that the routine - * @ref _Thread_Dispatch can be invoked when a reschedule is necessary - * at the end of the outermost interrupt service routine. This - * wrapper is necessary to establish the processor context needed - * by _Thread_Dispatch and to save the processor context which is - * corrupted by _Thread_Dispatch. This context typically consists - * of registers which are not preserved across routine invocations. - * - * @note Typically mplemented in assembly language. - */ -void _ISR_Dispatch( void ); - -/** - * @brief Checks if an ISR in progress. - * - * 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. - * - * @retval This methods returns true when called from an ISR. - */ -bool _ISR_Is_in_progress( void ); - -#ifdef __cplusplus -} -#endif - -/**@}*/ - -#endif -/* end of include file */ |