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/*-
* Copyright (c) 2016 Andrew Turner
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <efi.h>
#include <efilib.h>
#include <time.h>
#include <sys/time.h>
static EFI_EVENT time_event;
static uint64_t curtime;
static void
time_update(EFI_EVENT event, void *context)
{
curtime += 10;
}
void
efi_time_init(void)
{
/* Create a timer event */
BS->CreateEvent(EVT_TIMER | EVT_NOTIFY_SIGNAL, TPL_CALLBACK,
time_update, 0, &time_event);
/* Use a 10ms timer */
BS->SetTimer(time_event, TimerPeriodic, 100000);
}
void
efi_time_fini(void)
{
/* Cancel the timer */
BS->SetTimer(time_event, TimerCancel, 0);
BS->CloseEvent(time_event);
}
time_t
time(time_t *tloc)
{
time_t t;
t = curtime / 1000;
if (tloc != NULL)
*tloc = t;
return (t);
}
time_t
getsecs(void)
{
return time(0);
}
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