/*      $NetBSD: efidelay.c,v 1.2 2018/03/27 14:15:05 nonaka Exp $      */

/*-
* Copyright (c) 2016 Kimihiro Nonaka <[email protected]>
* 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 REGENTS 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 REGENTS 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 "efiboot.h"

void
delay(int us)
{
       EFI_STATUS status;
       CHAR16 errmsg[128];
       char *uerrmsg;
       int rv;

       status = uefi_call_wrapper(BS->Stall, 1, us);
       if (EFI_ERROR(status)) {
               StatusToString(errmsg, status);
               uerrmsg = NULL;
               rv = ucs2_to_utf8(errmsg, &uerrmsg);
               if (rv)
                       uerrmsg = "";
               panic("couldn't delay %d us: %s(%" PRIxMAX ")\n", us, uerrmsg,
                   (uintmax_t)status);
               if (rv == 0)
                       FreePool(uerrmsg);
       }
}

void
wait_sec(int sec)
{
       while (sec-- > 0)
               delay(1000 * 1000);
}