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3120 serge 1
#ifndef _LINUX_DELAY_H
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#define _LINUX_DELAY_H
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/*
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 * Copyright (C) 1993 Linus Torvalds
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 *
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 * Delay routines, using a pre-computed "loops_per_jiffy" value.
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 */
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#include 
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extern unsigned long loops_per_jiffy;
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#include 
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/*
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 * Using udelay() for intervals greater than a few milliseconds can
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 * risk overflow for high loops_per_jiffy (high bogomips) machines. The
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 * mdelay() provides a wrapper to prevent this.  For delays greater
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 * than MAX_UDELAY_MS milliseconds, the wrapper is used.  Architecture
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 * specific values can be defined in asm-???/delay.h as an override.
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 * The 2nd mdelay() definition ensures GCC will optimize away the
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 * while loop for the common cases where n <= MAX_UDELAY_MS  --  Paul G.
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 */
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#ifndef MAX_UDELAY_MS
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#define MAX_UDELAY_MS	5
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#endif
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#ifndef mdelay
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#define mdelay(n) (\
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	(__builtin_constant_p(n) && (n)<=MAX_UDELAY_MS) ? udelay((n)*1000) : \
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	({unsigned long __ms=(n); while (__ms--) udelay(1000);}))
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#endif
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#ifndef ndelay
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static inline void ndelay(unsigned long x)
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{
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	udelay(DIV_ROUND_UP(x, 1000));
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}
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#define ndelay(x) ndelay(x)
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#endif
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extern unsigned long lpj_fine;
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void calibrate_delay(void);
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void msleep(unsigned int msecs);
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unsigned long msleep_interruptible(unsigned int msecs);
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void usleep_range(unsigned long min, unsigned long max);
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static inline void ssleep(unsigned int seconds)
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{
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	msleep(seconds * 1000);
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}
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3120 serge 55
#endif /* defined(_LINUX_DELAY_H) */