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delay.c revision 1.1.4.2 
      1  1.1.4.2  elad /*	$NetBSD: delay.c,v 1.1.4.2 2006/04/19 02:33:08 elad Exp $	*/
      2  1.1.4.2  elad 
      3  1.1.4.2  elad /*-
      4  1.1.4.2  elad  * Copyright (c) 2001 Doug Rabson
      5  1.1.4.2  elad  * All rights reserved.
      6  1.1.4.2  elad  *
      7  1.1.4.2  elad  * Redistribution and use in source and binary forms, with or without
      8  1.1.4.2  elad  * modification, are permitted provided that the following conditions
      9  1.1.4.2  elad  * are met:
     10  1.1.4.2  elad  * 1. Redistributions of source code must retain the above copyright
     11  1.1.4.2  elad  *    notice, this list of conditions and the following disclaimer.
     12  1.1.4.2  elad  * 2. Redistributions in binary form must reproduce the above copyright
     13  1.1.4.2  elad  *    notice, this list of conditions and the following disclaimer in the
     14  1.1.4.2  elad  *    documentation and/or other materials provided with the distribution.
     15  1.1.4.2  elad  *
     16  1.1.4.2  elad  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  1.1.4.2  elad  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  1.1.4.2  elad  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  1.1.4.2  elad  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     20  1.1.4.2  elad  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  1.1.4.2  elad  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  1.1.4.2  elad  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  1.1.4.2  elad  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  1.1.4.2  elad  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  1.1.4.2  elad  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  1.1.4.2  elad  * SUCH DAMAGE.
     27  1.1.4.2  elad  */
     28  1.1.4.2  elad 
     29  1.1.4.2  elad #include <sys/cdefs.h>
     30  1.1.4.2  elad 
     31  1.1.4.2  elad #include <efi.h>
     32  1.1.4.2  elad #include <efilib.h>
     33  1.1.4.2  elad 
     34  1.1.4.2  elad void
     35  1.1.4.2  elad delay(int usecs)
     36  1.1.4.2  elad {
     37  1.1.4.2  elad 	static EFI_EVENT ev = 0;
     38  1.1.4.2  elad 	UINTN junk;
     39  1.1.4.2  elad 
     40  1.1.4.2  elad 	if (!ev) {
     41  1.1.4.2  elad 		if (BS->CreateEvent(EVT_TIMER, TPL_APPLICATION, 0, 0, &ev)
     42  1.1.4.2  elad 		    != EFI_SUCCESS)
     43  1.1.4.2  elad 			return;
     44  1.1.4.2  elad 	}
     45  1.1.4.2  elad 
     46  1.1.4.2  elad 	BS->SetTimer(ev, TimerRelative, usecs * 10);
     47  1.1.4.2  elad 	BS->WaitForEvent(1, &ev, &junk);
     48  1.1.4.2  elad }
     49