source: rtems/c/src/libchip/shmdr/intr.c @ 9eef52b

4.104.114.84.95
Last change on this file since 9eef52b was 60b791ad, checked in by Joel Sherrill <joel.sherrill@…>, on Feb 17, 1998 at 11:46:28 PM

updated copyright to 1998

  • Property mode set to 100644
File size: 1.4 KB
Line 
1/*  void Shm_Cause_interrupt( node )
2 *
3 *  This routine is the shared memory driver routine which
4 *  generates interrupts to other CPUs.
5 *
6 *  It uses the information placed in the node status control
7 *  block by each node.  For example, when used with the Motorola
8 *  MVME136 board, the MPCSR is used.
9 *
10 *  Input parameters:
11 *    node          - destination of this packet (0 = broadcast)
12 *
13 *  Output parameters: NONE
14 *
15 *  COPYRIGHT (c) 1989-1998.
16 *  On-Line Applications Research Corporation (OAR).
17 *  Copyright assigned to U.S. Government, 1994.
18 *
19 *  The license and distribution terms for this file may be
20 *  found in the file LICENSE in this distribution or at
21 *  http://www.OARcorp.com/rtems/license.html.
22 *
23 *  $Id$
24 */
25
26#include <rtems.h>
27#include "shm.h"
28
29void Shm_Cause_interrupt(
30  rtems_unsigned32 node
31)
32{
33  Shm_Interrupt_information *intr;
34  rtems_unsigned8  *u8;
35  rtems_unsigned16 *u16;
36  rtems_unsigned32 *u32;
37  rtems_unsigned32  value;
38
39  intr = &Shm_Interrupt_table[node];
40  value = intr->value;
41
42  switch ( intr->length ) {
43    case NO_INTERRUPT:
44       break;
45    case BYTE:
46      u8   = (rtems_unsigned8 *)intr->address;
47      *u8  = (rtems_unsigned8) value;
48      break;
49    case WORD:
50      u16   = (rtems_unsigned16 *)intr->address;
51      *u16  = (rtems_unsigned16) value;
52      break;
53    case LONG:
54      u32   = (rtems_unsigned32 *)intr->address;
55      *u32  = (rtems_unsigned32) value;
56      break;
57  }
58}
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