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/* set_vector
*
* This routine installs an interrupt vector on the sun4v niagara
*
* INPUT PARAMETERS:
* handler - interrupt handler entry point
* vector - vector number
* type - 0 indicates raw hardware connect
* 1 indicates RTEMS interrupt connect
*
* OUTPUT PARAMETERS: NONE
*
* RETURNS:
* address of previous interrupt handler
*
* COPYRIGHT (c) 1989-1998. 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.
*/
#include <bsp.h>
rtems_isr_entry set_vector( /* returns old vector */
rtems_isr_entry handler, /* isr routine */
rtems_vector_number vector, /* vector number */
int type /* RTEMS or RAW intr */
)
{
rtems_isr_entry previous_isr;
uint32_t real_trap;
uint32_t source;
int bit_mask;
if ( type )
rtems_interrupt_catch( handler, vector, &previous_isr );
else
_CPU_ISR_install_raw_handler( vector, handler, (void *)&previous_isr );
real_trap = SPARC_REAL_TRAP_NUMBER( vector );
/* check if this is an interrupt, if so, clear and unmask interrupts for
* this level
*/
/* Interrupts have real_trap numbers between 0x41 and 0x4F (levels 1 - 15) */
if (real_trap >= 0x41 && real_trap <= 0x4F) {
source = real_trap - 0x40;
bit_mask = 1<<source;
sparc64_clear_interrupt_bits(bit_mask);
}
return previous_isr;
}
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