diff options
Diffstat (limited to 'cpukit/rtems/src/rtclock.c')
-rw-r--r-- | cpukit/rtems/src/rtclock.c | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/cpukit/rtems/src/rtclock.c b/cpukit/rtems/src/rtclock.c deleted file mode 100644 index ea340ae5f4..0000000000 --- a/cpukit/rtems/src/rtclock.c +++ /dev/null @@ -1,151 +0,0 @@ -/* - * Clock Manager - * - * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. - * On-Line Applications Research Corporation (OAR). - * All rights assigned to U.S. Government, 1994. - * - * This material may be reproduced by or for the U.S. Government pursuant - * to the copyright license under the clause at DFARS 252.227-7013. This - * notice must appear in all copies of this file and its derivatives. - * - * $Id$ - */ - -#include <rtems/system.h> -#include <rtems/rtems/status.h> -#include <rtems/rtems/clock.h> -#include <rtems/score/isr.h> -#include <rtems/score/thread.h> -#include <rtems/score/tod.h> -#include <rtems/score/watchdog.h> - -/*PAGE - * - * rtems_clock_get - * - * This directive returns the current date and time. If the time has - * not been set by a tm_set then an error is returned. - * - * Input parameters: - * option - which value to return - * time_buffer - pointer to output buffer (a time and date structure - * or an interval) - * - * Output parameters: - * time_buffer - output filled in - * RTEMS_SUCCESSFUL - if successful - * error code - if unsuccessful - */ - -rtems_status_code rtems_clock_get( - rtems_clock_get_options option, - void *time_buffer -) -{ - ISR_Level level; - rtems_interval tmp; - - switch ( option ) { - case RTEMS_CLOCK_GET_TOD: - if ( !_TOD_Is_set() ) - return RTEMS_NOT_DEFINED; - - *(rtems_time_of_day *)time_buffer = _TOD_Current; - return RTEMS_SUCCESSFUL; - - case RTEMS_CLOCK_GET_SECONDS_SINCE_EPOCH: - if ( !_TOD_Is_set() ) - return RTEMS_NOT_DEFINED; - - *(rtems_interval *)time_buffer = _TOD_Seconds_since_epoch; - return RTEMS_SUCCESSFUL; - - case RTEMS_CLOCK_GET_TICKS_SINCE_BOOT: - *(rtems_interval *)time_buffer = _TOD_Ticks_since_boot; - return RTEMS_SUCCESSFUL; - - case RTEMS_CLOCK_GET_TICKS_PER_SECOND: - *(rtems_interval *)time_buffer = _TOD_Ticks_per_second; - return RTEMS_SUCCESSFUL; - - case RTEMS_CLOCK_GET_TIME_VALUE: - if ( !_TOD_Is_set() ) - return RTEMS_NOT_DEFINED; - - _ISR_Disable( level ); - ((rtems_clock_time_value *)time_buffer)->seconds = - _TOD_Seconds_since_epoch; - tmp = _TOD_Current.ticks; - _ISR_Enable( level ); - - tmp *= _TOD_Microseconds_per_tick; - ((rtems_clock_time_value *)time_buffer)->microseconds = tmp; - - return RTEMS_SUCCESSFUL; - } - - return RTEMS_INTERNAL_ERROR; /* should never get here */ - -} - -/*PAGE - * - * rtems_clock_set - * - * This directive sets the date and time for this node. - * - * Input parameters: - * time_buffer - pointer to the time and date structure - * - * Output parameters: - * RTEMS_SUCCESSFUL - if successful - * error code - if unsuccessful - */ - -rtems_status_code rtems_clock_set( - rtems_time_of_day *time_buffer -) -{ - rtems_interval seconds; - - if ( _TOD_Validate( time_buffer ) ) { - seconds = _TOD_To_seconds( time_buffer ); - _Thread_Disable_dispatch(); - _TOD_Set( time_buffer, seconds ); - _Thread_Enable_dispatch(); - return RTEMS_SUCCESSFUL; - } - return RTEMS_INVALID_CLOCK; -} - -/*PAGE - * - * rtems_clock_tick - * - * This directive notifies the executve that a tick has occurred. - * When the tick occurs the time manager updates and maintains - * the calendar time, timeslicing, and any timeout delays. - * - * Input parameters: NONE - * - * Output parameters: - * RTEMS_SUCCESSFUL - always succeeds - * - * NOTE: This routine only works for leap-years through 2099. - */ - -rtems_status_code rtems_clock_tick( void ) -{ - _TOD_Tickle_ticks(); - - _Watchdog_Tickle_ticks(); - - _Thread_Tickle_timeslice(); - - if ( _Thread_Is_context_switch_necessary() && - _Thread_Is_dispatching_enabled() ) - _Thread_Dispatch(); - - return RTEMS_SUCCESSFUL; -} |