source: rtems/cpukit/rtems/src/dpmemcreate.c @ 7a39c88

Last change on this file since 7a39c88 was 7a39c88, checked in by Joel Sherrill <joel.sherrill@…>, on 09/04/03 at 18:47:18

2003-09-04 Joel Sherrill <joel@…>

  • include/rtems.h, include/rtems/rtems/asr.h, include/rtems/rtems/attr.h, include/rtems/rtems/cache.h, include/rtems/rtems/clock.h, include/rtems/rtems/config.h, include/rtems/rtems/dpmem.h, include/rtems/rtems/event.h, include/rtems/rtems/eventmp.h, include/rtems/rtems/eventset.h, include/rtems/rtems/intr.h, include/rtems/rtems/message.h, include/rtems/rtems/modes.h, include/rtems/rtems/mp.h, include/rtems/rtems/msgmp.h, include/rtems/rtems/options.h, include/rtems/rtems/part.h, include/rtems/rtems/partmp.h, include/rtems/rtems/ratemon.h, include/rtems/rtems/region.h, include/rtems/rtems/regionmp.h, include/rtems/rtems/rtemsapi.h, include/rtems/rtems/sem.h, include/rtems/rtems/semmp.h, include/rtems/rtems/signal.h, include/rtems/rtems/signalmp.h, include/rtems/rtems/status.h, include/rtems/rtems/support.h, include/rtems/rtems/taskmp.h, include/rtems/rtems/tasks.h, include/rtems/rtems/timer.h, include/rtems/rtems/types.h, inline/rtems/rtems/asr.inl, inline/rtems/rtems/attr.inl, inline/rtems/rtems/dpmem.inl, inline/rtems/rtems/event.inl, inline/rtems/rtems/eventset.inl, inline/rtems/rtems/message.inl, inline/rtems/rtems/modes.inl, inline/rtems/rtems/options.inl, inline/rtems/rtems/part.inl, inline/rtems/rtems/ratemon.inl, inline/rtems/rtems/region.inl, inline/rtems/rtems/sem.inl, inline/rtems/rtems/status.inl, inline/rtems/rtems/support.inl, inline/rtems/rtems/tasks.inl, inline/rtems/rtems/timer.inl, macros/rtems/rtems/asr.inl, macros/rtems/rtems/attr.inl, macros/rtems/rtems/dpmem.inl, macros/rtems/rtems/event.inl, macros/rtems/rtems/eventset.inl, macros/rtems/rtems/message.inl, macros/rtems/rtems/modes.inl, macros/rtems/rtems/options.inl, macros/rtems/rtems/part.inl, macros/rtems/rtems/ratemon.inl, macros/rtems/rtems/region.inl, macros/rtems/rtems/sem.inl, macros/rtems/rtems/status.inl, macros/rtems/rtems/support.inl, macros/rtems/rtems/tasks.inl, macros/rtems/rtems/timer.inl, src/attr.c, src/clockget.c, src/clockset.c, src/clocktick.c, src/dpmem.c, src/dpmemcreate.c, src/dpmemdelete.c, src/dpmemexternal2internal.c, src/dpmemident.c, src/dpmeminternal2external.c, src/event.c, src/eventmp.c, src/eventreceive.c, src/eventseize.c, src/eventsend.c, src/eventsurrender.c, src/eventtimeout.c, src/intr.c, src/intrbody.c, src/intrcatch.c, src/mp.c, src/msg.c, src/msgmp.c, src/msgqallocate.c, src/msgqbroadcast.c, src/msgqcreate.c, src/msgqdelete.c, src/msgqflush.c, src/msgqgetnumberpending.c, src/msgqident.c, src/msgqreceive.c, src/msgqsend.c, src/msgqsubmit.c, src/msgqtranslatereturncode.c, src/msgqurgent.c, src/part.c, src/partcreate.c, src/partdelete.c, src/partgetbuffer.c, src/partident.c, src/partmp.c, src/partreturnbuffer.c, src/ratemon.c, src/ratemoncancel.c, src/ratemoncreate.c, src/ratemondelete.c, src/ratemongetstatus.c, src/ratemonident.c, src/ratemonperiod.c, src/ratemontimeout.c, src/region.c, src/regioncreate.c, src/regiondelete.c, src/regionextend.c, src/regiongetinfo.c, src/regiongetsegment.c, src/regiongetsegmentsize.c, src/regionident.c, src/regionmp.c, src/regionreturnsegment.c, src/rtclock.c, src/rtemstimer.c, src/sem.c, src/semcreate.c, src/semdelete.c, src/semflush.c, src/semident.c, src/semmp.c, src/semobtain.c, src/semrelease.c, src/semtranslatereturncode.c, src/signal.c, src/signalcatch.c, src/signalmp.c, src/signalsend.c, src/taskcreate.c, src/taskdelete.c, src/taskgetnote.c, src/taskident.c, src/taskinitusers.c, src/taskissuspended.c, src/taskmode.c, src/taskmp.c, src/taskrestart.c, src/taskresume.c, src/tasks.c, src/tasksetnote.c, src/tasksetpriority.c, src/taskstart.c, src/tasksuspend.c, src/taskvariableadd.c, src/taskvariabledelete.c, src/taskvariableget.c, src/taskwakeafter.c, src/taskwakewhen.c, src/timercancel.c, src/timercreate.c, src/timerdelete.c, src/timerfireafter.c, src/timerfirewhen.c, src/timergetinfo.c, src/timerident.c, src/timerreset.c, src/timerserver.c, src/timerserverfireafter.c, src/timerserverfirewhen.c: URL for license changed.
  • Property mode set to 100644
File size: 2.0 KB
Line 
1/*
2 *  Dual Port Memory Manager
3 *
4 *  COPYRIGHT (c) 1989-1999.
5 *  On-Line Applications Research Corporation (OAR).
6 *
7 *  The license and distribution terms for this file may be
8 *  found in the file LICENSE in this distribution or at
9 *  http://www.rtems.com/license/LICENSE.
10 *
11 *  $Id$
12 */
13
14#include <rtems/system.h>
15#include <rtems/rtems/status.h>
16#include <rtems/rtems/support.h>
17#include <rtems/score/address.h>
18#include <rtems/rtems/dpmem.h>
19#include <rtems/score/object.h>
20#include <rtems/score/thread.h>
21#include <rtems/rtems/dpmem.h>
22
23/*PAGE
24 *
25 *  rtems_port_create
26 *
27 *  This directive creates a port into a dual-ported memory area.
28 *
29 *  Input parameters:
30 *    name           - user defined port name
31 *    internal_start - internal start address of port
32 *    external_start - external start address of port
33 *    length         - physical length in bytes
34 *    id             - address of port id to set
35 *
36 *  Output parameters:
37 *    id       - port id
38 *    RTEMS_SUCCESSFUL - if successful
39 *    error code - if unsuccessful
40 */
41
42rtems_status_code rtems_port_create(
43  rtems_name    name,
44  void         *internal_start,
45  void         *external_start,
46  unsigned32    length,
47  Objects_Id   *id
48)
49{
50  register Dual_ported_memory_Control *the_port;
51
52  if ( !rtems_is_name_valid( name) )
53    return RTEMS_INVALID_NAME;
54
55  if ( !_Addresses_Is_aligned( internal_start ) ||
56       !_Addresses_Is_aligned( external_start ) )
57    return RTEMS_INVALID_ADDRESS;
58
59  _Thread_Disable_dispatch();             /* to prevent deletion */
60
61  the_port = _Dual_ported_memory_Allocate();
62
63  if ( !the_port ) {
64    _Thread_Enable_dispatch();
65    return RTEMS_TOO_MANY;
66  }
67
68  the_port->internal_base = internal_start;
69  the_port->external_base = external_start;
70  the_port->length        = length - 1;
71
72  _Objects_Open(
73    &_Dual_ported_memory_Information,
74    &the_port->Object,
75    (Objects_Name) name
76  );
77
78  *id = the_port->Object.id;
79  _Thread_Enable_dispatch();
80  return RTEMS_SUCCESSFUL;
81}
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