1#ifndef __ASM_SH_DELAY_H 2#define __ASM_SH_DELAY_H 3 4/* 5 * Copyright (C) 1993 Linus Torvalds 6 * 7 * Delay routines calling functions in arch/sh/lib/delay.c 8 */ 9 10extern void __bad_udelay(void); 11extern void __bad_ndelay(void); 12 13extern void __udelay(unsigned long usecs); 14extern void __ndelay(unsigned long nsecs); 15extern void __const_udelay(unsigned long xloops); 16extern void __delay(unsigned long loops); 17 18#define udelay(n) (__builtin_constant_p(n) ? \ 19 ((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c6ul)) : \ 20 __udelay(n)) 21 22#define ndelay(n) (__builtin_constant_p(n) ? \ 23 ((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \ 24 __ndelay(n)) 25 26#endif /* __ASM_SH_DELAY_H */ 27