1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License.  See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 1994 by Waldorf Electronics
7 * Copyright (C) 1995 - 2000, 01, 03 by Ralf Baechle
8 * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
9 * Copyright (C) 2007  Maciej W. Rozycki
10 */
11#ifndef _ASM_DELAY_H
12#define _ASM_DELAY_H
13
14#include <linux/param.h>
15
16extern void __delay(unsigned long loops);
17extern void __ndelay(unsigned long ns);
18extern void __udelay(unsigned long us);
19
20#define ndelay(ns) __ndelay(ns)
21#define udelay(us) __udelay(us)
22
23/* make sure "usecs *= ..." in udelay do not overflow. */
24#if HZ >= 1000
25#define MAX_UDELAY_MS	1
26#elif HZ <= 200
27#define MAX_UDELAY_MS	5
28#else
29#define MAX_UDELAY_MS	(1000 / HZ)
30#endif
31
32#endif /* _ASM_DELAY_H */
33