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/*++
Copyright (c) 1991 Microsoft Corporation
Module Name:
xxtime.c
Abstract:
This module implements the HAL set/query realtime clock routines for
an x86 system.
Author:
David N. Cutler (davec) 5-May-1991
Environment:
Kernel mode
Revision History:
--*/
#include "halp.h"
BOOLEAN
HalQueryRealTimeClock (
OUT PTIME_FIELDS TimeFields
)
/*++
Routine Description:
This routine queries the realtime clock.
N.B. This routine assumes that the caller has provided any required
synchronization to query the realtime clock information.
Arguments:
TimeFields - Supplies a pointer to a time structure that receives
the realtime clock information.
Return Value:
If the power to the realtime clock has not failed, then the time
values are read from the realtime clock and a value of TRUE is
returned. Otherwise, a value of FALSE is returned.
--*/
{
HalpReadCmosTime(TimeFields);
return TRUE;
}
BOOLEAN
HalSetRealTimeClock (
IN PTIME_FIELDS TimeFields
)
/*++
Routine Description:
This routine sets the realtime clock.
N.B. This routine assumes that the caller has provided any required
synchronization to set the realtime clock information.
Arguments:
TimeFields - Supplies a pointer to a time structure that specifies the
realtime clock information.
Return Value:
If the power to the realtime clock has not failed, then the time
values are written to the realtime clock and a value of TRUE is
returned. Otherwise, a value of FALSE is returned.
--*/
{
HalpWriteCmosTime(TimeFields);
return TRUE;
}
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