4.104.114.84.95
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1 | /* |
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2 | * Time of Day (TOD) Handler |
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3 | * |
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4 | * |
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5 | * COPYRIGHT (c) 1989-1999. |
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6 | * On-Line Applications Research Corporation (OAR). |
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7 | * |
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8 | * The license and distribution terms for this file may be |
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9 | * found in the file LICENSE in this distribution or at |
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10 | * http://www.rtems.com/license/LICENSE. |
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11 | * |
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12 | * $Id$ |
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13 | */ |
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14 | |
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15 | #include <rtems/system.h> |
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16 | #include <rtems/score/object.h> |
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17 | #include <rtems/score/thread.h> |
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18 | #include <rtems/score/tod.h> |
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19 | #include <rtems/score/watchdog.h> |
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20 | |
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21 | /*PAGE |
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22 | * |
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23 | * _TOD_To_seconds |
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24 | * |
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25 | * This routine returns the seconds from the epoch until the |
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26 | * current date and time. |
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27 | * |
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28 | * Input parameters: |
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29 | * the_tod - pointer to the time and date structure |
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30 | * |
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31 | * Output parameters: |
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32 | * returns - seconds since epoch until the_tod |
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33 | */ |
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34 | |
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35 | uint32_t _TOD_To_seconds( |
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36 | TOD_Control *the_tod |
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37 | ) |
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38 | { |
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39 | uint32_t time; |
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40 | uint32_t year_mod_4; |
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41 | |
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42 | time = the_tod->day - 1; |
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43 | year_mod_4 = the_tod->year & 3; |
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44 | |
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45 | if ( year_mod_4 == 0 ) |
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46 | time += _TOD_Days_to_date[ 1 ][ the_tod->month ]; |
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47 | else |
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48 | time += _TOD_Days_to_date[ 0 ][ the_tod->month ]; |
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49 | |
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50 | time += ( (the_tod->year - TOD_BASE_YEAR) / 4 ) * |
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51 | ( (TOD_DAYS_PER_YEAR * 4) + 1); |
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52 | |
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53 | time += _TOD_Days_since_last_leap_year[ year_mod_4 ]; |
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54 | |
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55 | time *= TOD_SECONDS_PER_DAY; |
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56 | |
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57 | time += ((the_tod->hour * TOD_MINUTES_PER_HOUR) + the_tod->minute) |
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58 | * TOD_SECONDS_PER_MINUTE; |
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59 | |
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60 | time += the_tod->second; |
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61 | |
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62 | return( time ); |
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63 | } |
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