linux/arch/mips/include/asm/delay.h
Ralf Baechle e3bf887d73 MIPS: Fix potencial build error in <asm/delay.h>
<asm/delay.h> will break if HZ isn't defined.  In 2.6.26 and later we're
usually lucky ...

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:41 +02:00

32 lines
838 B
C

/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1994 by Waldorf Electronics
* Copyright (C) 1995 - 2000, 01, 03 by Ralf Baechle
* Copyright (C) 1999, 2000 Silicon Graphics, Inc.
* Copyright (C) 2007 Maciej W. Rozycki
*/
#ifndef _ASM_DELAY_H
#define _ASM_DELAY_H
#include <linux/param.h>
extern void __delay(unsigned int loops);
extern void __ndelay(unsigned int ns);
extern void __udelay(unsigned int us);
#define ndelay(ns) __ndelay(ns)
#define udelay(us) __udelay(us)
/* make sure "usecs *= ..." in udelay do not overflow. */
#if HZ >= 1000
#define MAX_UDELAY_MS 1
#elif HZ <= 200
#define MAX_UDELAY_MS 5
#else
#define MAX_UDELAY_MS (1000 / HZ)
#endif
#endif /* _ASM_DELAY_H */