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/*  set_vector

 *

 *  This routine installs an interrupt vector on the efi68k.

 *

 *  INPUT:

 *    handler - interrupt handler entry point

 *    vector  - vector number

 *    type    - 0 indicates raw hardware connect

 *              1 indicates RTEMS interrupt connect

 *

 *  RETURNS:

 *    address of previous interrupt handler

 *

 *  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: setvec.c,v 1.2 2001-09-27 12:00:03 chris Exp $

 */

#include <bsp.h>

m68k_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  */

)

{

  int *p;

  m68k_isr_entry  previous_isr;

  if ( type )

    rtems_interrupt_catch( handler, vector, (rtems_isr_entry *) &previous_isr );

  else {

    p = (int *)(vector*6-12+2+(int)_VBR);

    previous_isr  =  (m68k_isr_entry) *p;       /* return old ISR  */

    *p = (int) handler;    /* install new ISR */

  }

  return previous_isr;

}