source: rtems/cpukit/score/src/coretodget.c @ 4b48ece0

4.11
Last change on this file since 4b48ece0 was 4b48ece0, checked in by Sebastian Huber <sebastian.huber@…>, on Jul 22, 2013 at 8:21:03 AM

score: Create watchdog implementation header

Move implementation specific parts of watchdog.h and watchdog.inl into
new header file watchdogimpl.h. The watchdog.h contains now only the
application visible API.

  • Property mode set to 100644
File size: 968 bytes
Line 
1/**
2 *  @file
3 *
4 *  @brief Returns a Current TOD with Nanosecond Granularity
5 *  @ingroup ScoreTODConstants
6 */
7
8/*
9 *  COPYRIGHT (c) 1989-2008.
10 *  On-Line Applications Research Corporation (OAR).
11 *
12 *  The license and distribution terms for this file may be
13 *  found in the file LICENSE in this distribution or at
14 *  http://www.rtems.com/license/LICENSE.
15 */
16
17#if HAVE_CONFIG_H
18  #include "config.h"
19#endif
20
21#include <rtems/score/tod.h>
22#include <rtems/score/watchdogimpl.h>
23
24Timestamp_Control *_TOD_Get_with_nanoseconds(
25  Timestamp_Control *snapshot,
26  const Timestamp_Control *clock
27)
28{
29  ISR_Level         level;
30  Timestamp_Control offset;
31  Timestamp_Control now;
32  uint32_t          nanoseconds;
33
34  _ISR_Disable( level );
35    nanoseconds = (*_Watchdog_Nanoseconds_since_tick_handler)();
36    now = *clock;
37  _ISR_Enable( level );
38
39  _Timestamp_Set( &offset, 0, nanoseconds );
40  _Timestamp_Add_to( &now, &offset );
41
42  *snapshot = now;
43
44  return snapshot;
45}
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