1 | /* |
---|
2 | * Time of Day (TOD) Handler |
---|
3 | * |
---|
4 | * |
---|
5 | * COPYRIGHT (c) 1989-1999. |
---|
6 | * On-Line Applications Research Corporation (OAR). |
---|
7 | * |
---|
8 | * The license and distribution terms for this file may be |
---|
9 | * found in the file LICENSE in this distribution or at |
---|
10 | * http://www.OARcorp.com/rtems/license.html. |
---|
11 | * |
---|
12 | * $Id$ |
---|
13 | */ |
---|
14 | |
---|
15 | #include <rtems/system.h> |
---|
16 | #include <rtems/score/object.h> |
---|
17 | #include <rtems/score/thread.h> |
---|
18 | #include <rtems/score/tod.h> |
---|
19 | #include <rtems/score/watchdog.h> |
---|
20 | |
---|
21 | /*PAGE |
---|
22 | * |
---|
23 | * _TOD_Handler_initialization |
---|
24 | * |
---|
25 | * This routine initializes the time of day handler. |
---|
26 | * |
---|
27 | * Input parameters: |
---|
28 | * microseconds_per_tick - microseconds between clock ticks |
---|
29 | * |
---|
30 | * Output parameters: NONE |
---|
31 | */ |
---|
32 | |
---|
33 | void _TOD_Handler_initialization( |
---|
34 | unsigned32 microseconds_per_tick |
---|
35 | ) |
---|
36 | { |
---|
37 | _TOD_Microseconds_per_tick = microseconds_per_tick; |
---|
38 | |
---|
39 | _TOD_Seconds_since_epoch = 0; |
---|
40 | |
---|
41 | _TOD_Current.year = TOD_BASE_YEAR; |
---|
42 | _TOD_Current.month = 1; |
---|
43 | _TOD_Current.day = 1; |
---|
44 | _TOD_Current.hour = 0; |
---|
45 | _TOD_Current.minute = 0; |
---|
46 | _TOD_Current.second = 0; |
---|
47 | _TOD_Current.ticks = 0; |
---|
48 | |
---|
49 | if ( microseconds_per_tick == 0 ) |
---|
50 | _TOD_Ticks_per_second = 0; |
---|
51 | else |
---|
52 | _TOD_Ticks_per_second = |
---|
53 | TOD_MICROSECONDS_PER_SECOND / microseconds_per_tick; |
---|
54 | |
---|
55 | _Watchdog_Initialize( &_TOD_Seconds_watchdog, _TOD_Tickle, 0, NULL ); |
---|
56 | |
---|
57 | _TOD_Is_set = FALSE; |
---|
58 | _TOD_Activate( _TOD_Ticks_per_second ); |
---|
59 | } |
---|