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/* Shm_isr_cvme961()
*
* 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 be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#include <rtems.h>
#include <bsp.h>
#include "shm.h"
rtems_isr Shm_isr_cvme961(
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_cvme961, 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 );
}
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