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/*

 *  NOTE: This routine is not used when in polling mode.  Either

 *        this routine OR Shm_clockisr is used in a particular system.

 *

 *        There must be sufficient time after the IACK (read at

 *        0xb600000x) for the VIC068 to clear the interrupt request

 *        before the interrupt request is cleared from IPND (sf0).

 *

 *  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: mpisr.c,v 1.2 2001-09-27 11:59:59 chris Exp $

 */

#include <rtems.h>

#include <bsp.h>

#include "shm_driver.h"

rtems_isr Shm_isr_rxgen960(

  rtems_vector_number vector

)

{

  rtems_unsigned32 vic_vector;

  /* enable_tracing(); */

  vic_vector = (*(volatile rtems_unsigned8 *)0xb6000007);

                                           /* reset intr by reading */

                                           /*   vector at IPL=3 */

  Shm_Interrupt_count += 1;

  rtems_multiprocessing_announce();

  (*(volatile rtems_unsigned8 *)0xa000005f) = 0; /* clear ICMS0 */

  i960_clear_intr( 6 );

}

/*  void _Shm_setvec( )

 *

 *  This driver routine sets the SHM interrupt vector to point to the

 *  driver's SHM interrupt service routine.

 *

 *  NOTE: See pp. 21-22, 36-39 of the CVME961 Manual for more info.

 *

 *  Input parameters:  NONE

 *

 *  Output parameters: NONE

 */

void Shm_setvec()

{

  rtems_unsigned32 isrlevel;

  rtems_interrupt_disable( isrlevel );

                                        /* set SQSIO4 CTL REG for */

                                        /*   VME slave address */

    (*(rtems_unsigned8 *)0xc00000b0) =

      (Shm_RTEMS_MP_Configuration->node - 1) | 0x10;

    set_vector( Shm_isr_rxgen960, 6, 1 );

                                        /* set ICMS Bector Base Register */

    (*(rtems_unsigned8 *)0xa0000053) = 0x60;  /* XINT6 vector is 0x62 */

                                        /* set  ICMS Intr Control Reg */

    (*(rtems_unsigned8 *)0xa0000047) = 0xeb;  /* ICMS0 enabled, IPL=0 */

    (*(rtems_unsigned8 *)0xa000005f) = 0;     /* clear ICMS0 */

  rtems_interrupt_enable( isrlevel );

}