xref: /netbsd/sys/dev/acpi/acpi_timer.h (revision 6550d01e)
1 /* $NetBSD: acpi_timer.h,v 1.6 2010/07/10 19:37:38 jruoho Exp $ */
2 
3 /*-
4  * Copyright (c) 2006 Matthias Drochner <drochner@NetBSD.org>
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26  * POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 #ifndef _SYS_DEV_ACPI_ACPI_TIMER_H
30 #define _SYS_DEV_ACPI_ACPI_TIMER_H
31 
32 int		acpitimer_init(struct acpi_softc *);
33 int		acpitimer_detach(void);
34 u_int		acpitimer_read_safe(struct timecounter *);
35 u_int		acpitimer_read_fast(struct timecounter *);
36 uint32_t	acpitimer_delta(uint32_t, uint32_t);
37 
38 #endif	/* !_SYS_DEV_ACPI_ACPI_TIMER_H */
39