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#ifndef _LINUX_DELAY_H

#define _LINUX_DELAY_H

/*

 * Copyright (C) 1993 Linus Torvalds

 *

 * Delay routines, using a pre-computed "loops_per_jiffy" value.

 */

extern unsigned long loops_per_jiffy;

#include <asm/delay.h>

/*

 * Using udelay() for intervals greater than a few milliseconds can

 * risk overflow for high loops_per_jiffy (high bogomips) machines. The

 * mdelay() provides a wrapper to prevent this.  For delays greater

 * than MAX_UDELAY_MS milliseconds, the wrapper is used.  Architecture

 * specific values can be defined in asm-???/delay.h as an override.

 * The 2nd mdelay() definition ensures GCC will optimize away the

 * while loop for the common cases where n <= MAX_UDELAY_MS  --  Paul G.

 */

#ifndef MAX_UDELAY_MS

#define MAX_UDELAY_MS   5

#endif

#ifdef notdef

#define mdelay(n) (\

        {unsigned long __ms=(n); while (__ms--) udelay(1000);})

#else

#define mdelay(n) (\

        (__builtin_constant_p(n) && (n)<=MAX_UDELAY_MS) ? udelay((n)*1000) : \

        ({unsigned long __ms=(n); while (__ms--) udelay(1000);}))

#endif

#ifndef ndelay

#define ndelay(x)       udelay(((x)+999)/1000)

#endif

#endif /* defined(_LINUX_DELAY_H) */