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1 | /** |
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2 | * @file |
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3 | * |
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4 | * @brief Set the Current TOD |
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5 | * @ingroup ClassicClock |
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6 | */ |
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7 | |
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8 | /* |
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9 | * COPYRIGHT (c) 1989-1999. |
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10 | * On-Line Applications Research Corporation (OAR). |
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11 | * |
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12 | * The license and distribution terms for this file may be |
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13 | * found in the file LICENSE in this distribution or at |
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14 | * http://www.rtems.org/license/LICENSE. |
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15 | */ |
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16 | |
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17 | #if HAVE_CONFIG_H |
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18 | #include "config.h" |
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19 | #endif |
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20 | |
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21 | #include <rtems/rtems/clock.h> |
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22 | #include <rtems/score/todimpl.h> |
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23 | #include <rtems/config.h> |
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24 | |
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25 | rtems_status_code rtems_clock_set( |
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26 | const rtems_time_of_day *tod |
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27 | ) |
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28 | { |
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29 | if ( !tod ) |
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30 | return RTEMS_INVALID_ADDRESS; |
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31 | |
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32 | if ( _TOD_Validate( tod ) ) { |
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33 | Timestamp_Control tod_as_timestamp; |
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34 | uint32_t seconds; |
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35 | uint32_t nanoseconds; |
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36 | ISR_lock_Context lock_context; |
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37 | |
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38 | seconds = _TOD_To_seconds( tod ); |
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39 | nanoseconds = tod->ticks |
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40 | * rtems_configuration_get_nanoseconds_per_tick(); |
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41 | _Timestamp_Set( &tod_as_timestamp, seconds, nanoseconds ); |
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42 | |
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43 | _TOD_Lock(); |
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44 | _TOD_Acquire( &lock_context ); |
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45 | _TOD_Set( &tod_as_timestamp, &lock_context ); |
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46 | _TOD_Unlock(); |
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47 | |
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48 | return RTEMS_SUCCESSFUL; |
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49 | } |
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50 | |
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51 | return RTEMS_INVALID_CLOCK; |
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52 | } |
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