mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-15 00:04:15 +08:00
32 lines
806 B
C
32 lines
806 B
C
#ifndef __ASM_SH_DELAY_H
|
|
#define __ASM_SH_DELAY_H
|
|
|
|
/*
|
|
* Copyright (C) 1993 Linus Torvalds
|
|
*
|
|
* Delay routines calling functions in arch/sh/lib/delay.c
|
|
*/
|
|
|
|
extern void __bad_udelay(void);
|
|
extern void __bad_ndelay(void);
|
|
|
|
extern void __udelay(unsigned long usecs);
|
|
extern void __ndelay(unsigned long nsecs);
|
|
extern void __const_udelay(unsigned long usecs);
|
|
extern void __delay(unsigned long loops);
|
|
|
|
#ifdef CONFIG_SUPERH32
|
|
#define udelay(n) (__builtin_constant_p(n) ? \
|
|
((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c6ul)) : \
|
|
__udelay(n))
|
|
|
|
#define ndelay(n) (__builtin_constant_p(n) ? \
|
|
((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \
|
|
__ndelay(n))
|
|
#else
|
|
extern void udelay(unsigned long usecs);
|
|
extern void ndelay(unsigned long nsecs);
|
|
#endif
|
|
|
|
#endif /* __ASM_SH_DELAY_H */
|