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Diffstat (limited to 'cpukit/score/src/coretod.c')
-rw-r--r-- | cpukit/score/src/coretod.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/cpukit/score/src/coretod.c b/cpukit/score/src/coretod.c new file mode 100644 index 0000000000..30824108ac --- /dev/null +++ b/cpukit/score/src/coretod.c @@ -0,0 +1,59 @@ +/* + * Time of Day (TOD) Handler + * + * + * COPYRIGHT (c) 1989-1999. + * 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. + * + * $Id$ + */ + +#include <rtems/system.h> +#include <rtems/score/object.h> +#include <rtems/score/thread.h> +#include <rtems/score/tod.h> +#include <rtems/score/watchdog.h> + +/*PAGE + * + * _TOD_Handler_initialization + * + * This routine initializes the time of day handler. + * + * Input parameters: + * microseconds_per_tick - microseconds between clock ticks + * + * Output parameters: NONE + */ + +void _TOD_Handler_initialization( + uint32_t microseconds_per_tick +) +{ + _TOD_Microseconds_per_tick = microseconds_per_tick; + + _TOD_Seconds_since_epoch = 0; + + _TOD_Current.year = TOD_BASE_YEAR; + _TOD_Current.month = 1; + _TOD_Current.day = 1; + _TOD_Current.hour = 0; + _TOD_Current.minute = 0; + _TOD_Current.second = 0; + _TOD_Current.ticks = 0; + + if ( microseconds_per_tick == 0 ) + _TOD_Ticks_per_second = 0; + else + _TOD_Ticks_per_second = + TOD_MICROSECONDS_PER_SECOND / microseconds_per_tick; + + _Watchdog_Initialize( &_TOD_Seconds_watchdog, _TOD_Tickle, 0, NULL ); + + _TOD_Is_set = FALSE; + _TOD_Activate( _TOD_Ticks_per_second ); +} |