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) 1989-1997.

 *  On-Line Applications Research Corporation (OAR).

 *  Copyright assigned to U.S. Government, 1994.

 *

 *  The license and distribution terms for this file may 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 12:00:35 chris Exp $

 */

#include <rtems.h>

#include <bsp.h>

/*PAGE

 *

 *  set_vector

 *

 *  This routine installs an interrupt handler for vector.

 */

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;

  rtems_status_code status;

  /*

   * vectors greater than PPC603e_IRQ_LAST are handled by the General purpose

   * interupt handler.

   */

  if ( vector > PPC_IRQ_LAST )  {

    set_EE_vector ( handler, vector );

  }

  else  {

    status = rtems_interrupt_catch(

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

  }

  return previous_isr;

}