Subversion Repositories openrisc_2011-10-31

/*  set_vector

 *

 *  This routine installs an interrupt vector on the target Board/CPU.

 *  This routine is allowed to be as board dependent as necessary.

 *

 *  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 11:59:42 chris Exp $

 */

#include <rtems.h>

#include <bsp.h>

#ifndef lint

static char _sccsid[] = "@(#)setvec.c 06/30/96     1.2\n";

#endif

no_cpu_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  */

)

{

  no_cpu_isr_entry previous_isr;

  if ( type )

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

  else {

    /* XXX: install non-RTEMS ISR as "raw" interupt */

    _settrap( vector, handler );

  }

  return previous_isr;

}