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Diffstat (limited to 'cpukit/score/src/coretodget.c')
-rw-r--r-- | cpukit/score/src/coretodget.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/cpukit/score/src/coretodget.c b/cpukit/score/src/coretodget.c new file mode 100644 index 0000000000..953f3cb753 --- /dev/null +++ b/cpukit/score/src/coretodget.c @@ -0,0 +1,56 @@ +/* + * Time of Day (TOD) Handler - get TOD + * + * COPYRIGHT (c) 1989-2008. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.com/license/LICENSE. + * + * $Id$ + */ + +#if HAVE_CONFIG_H +#include "config.h" +#endif + +#include <rtems/system.h> +#include <rtems/score/isr.h> +#include <rtems/score/timespec.h> +#include <rtems/score/timestamp.h> +#include <rtems/score/tod.h> +#include <rtems/score/watchdog.h> + +/* + * _TOD_Get + * + * This routine is used to obtain the current date and time. + * + * Input parameters: + * time - pointer to the time and date structure + * + * Output parameters: NONE + */ + +void _TOD_Get( + struct timespec *time +) +{ + ISR_Level level; + Timestamp_Control offset; + Timestamp_Control now; + long nanoseconds; + + /* assume time checked for NULL by caller */ + + /* _TOD_Now is the native current time */ + _ISR_Disable( level ); + now = _TOD_Now; + nanoseconds = (*_Watchdog_Nanoseconds_since_tick_handler)(); + _ISR_Enable( level ); + + _Timestamp_Set( &offset, 0, nanoseconds ); + _Timestamp_Add_to( &now, &offset ); + _Timestamp_To_timespec( &now, time ); +} |