forked from Imagelibrary/rtems
9964895866
Adjust build support files to new directory layout. This patch is a part of the BSP source reorganization. Update #3285.
58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
/* set_vector
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*
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* This routine installs an interrupt vector on the sun4v niagara
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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) 1989-1998. On-Line Applications Research Corporation (OAR).
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* COPYRIGHT (c) 2010. Gedare Bloom.
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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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#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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uint32_t real_trap;
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uint32_t source;
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int bit_mask;
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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( vector, handler, (void *)&previous_isr );
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real_trap = SPARC_REAL_TRAP_NUMBER( vector );
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/* check if this is an interrupt, if so, clear and unmask interrupts for
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* this level
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*/
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/* Interrupts have real_trap numbers between 0x41 and 0x4F (levels 1 - 15) */
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if (real_trap >= 0x41 && real_trap <= 0x4F) {
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source = real_trap - 0x40;
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bit_mask = 1<<source;
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sparc64_clear_interrupt_bits(bit_mask);
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}
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return previous_isr;
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}
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