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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [exec/] [rtems/] [src/] [intrcatch.c] - Rev 751
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/* * 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: intrcatch.c,v 1.2 2001-09-27 11:59:19 chris Exp $ */ #include <rtems/system.h> #include <rtems/rtems/status.h> #include <rtems/score/isr.h> #include <rtems/rtems/intr.h> /* rtems_interrupt_catch * * This directive allows a thread to specify what action to take when * catching signals. * * Input parameters: * new_isr_handler - address of interrupt service routine (isr) * vector - interrupt vector number * old_isr_handler - address at which to store previous ISR address * * Output parameters: * RTEMS_SUCCESSFUL - always succeeds * *old_isr_handler - previous ISR address */ rtems_status_code rtems_interrupt_catch( rtems_isr_entry new_isr_handler, rtems_vector_number vector, rtems_isr_entry *old_isr_handler ) { if ( !_ISR_Is_vector_number_valid( vector ) ) return RTEMS_INVALID_NUMBER; if ( !_ISR_Is_valid_user_handler( (void *) new_isr_handler ) ) return RTEMS_INVALID_ADDRESS; if ( !_ISR_Is_valid_user_handler( (void *) old_isr_handler ) ) return RTEMS_INVALID_ADDRESS; _ISR_Install_vector( vector, (proc_ptr)new_isr_handler, (proc_ptr *)old_isr_handler ); return RTEMS_SUCCESSFUL; }
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