forked from Imagelibrary/rtems
62 lines
1.6 KiB
C
62 lines
1.6 KiB
C
/* set_vector
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*
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* This routine installs an interrupt vector on the SPARC simulator.
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*
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* INPUT PARAMETERS:
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* handler - interrupt handler entry point
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* vector - vector number
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* type - 0 indicates raw hardware connect
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* 1 indicates RTEMS interrupt connect
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*
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* OUTPUT PARAMETERS: NONE
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*
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* RETURNS:
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* address of previous interrupt handler
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*
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* COPYRIGHT (c) 1989-1999.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*
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* Ported to ERC32 implementation of the SPARC by On-Line Applications
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* Research Corporation (OAR) under contract to the European Space
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* Agency (ESA).
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*
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* ERC32 modifications of respective RTEMS file: COPYRIGHT (c) 1995.
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* European Space Agency.
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*/
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#include <bsp.h>
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rtems_isr_entry set_vector( /* returns old vector */
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rtems_isr_entry handler, /* isr routine */
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rtems_vector_number vector, /* vector number */
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int type /* RTEMS or RAW intr */
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)
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{
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rtems_isr_entry previous_isr;
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if ( type ) {
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rtems_interrupt_catch( handler, vector, &previous_isr );
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} else {
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_CPU_ISR_install_raw_handler(
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vector,
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(void *)handler,
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(void *)&previous_isr
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);
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}
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if ( SPARC_IS_INTERRUPT_TRAP( vector ) ) {
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uint32_t source;
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source = SPARC_INTERRUPT_TRAP_TO_SOURCE( vector );
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ERC32_Clear_interrupt( source );
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ERC32_Unmask_interrupt( source );
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}
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return previous_isr;
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}
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