projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #ifndef _ASM_M32R_DELAY_H |
| 2 | #define _ASM_M32R_DELAY_H | |
| 3 | ||
| 4 | /* $Id$ */ | |
| 5 | ||
| 6 | /* | |
| 7 | * Copyright (C) 1993 Linus Torvalds | |
| 8 | * | |
| 9 | * Delay routines calling functions in arch/m32r/lib/delay.c | |
| 10 | */ | |
| 11 | ||
| 12 | extern void __bad_udelay(void); | |
| 13 | extern void __bad_ndelay(void); | |
| 14 | ||
| 15 | extern void __udelay(unsigned long usecs); | |
| 16 | extern void __ndelay(unsigned long nsecs); | |
| 17 | extern void __const_udelay(unsigned long usecs); | |
| 18 | extern void __delay(unsigned long loops); | |
| 19 | ||
| 20 | #define udelay(n) (__builtin_constant_p(n) ? \ | |
| 21 | ((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c7ul)) : \ | |
| 22 | __udelay(n)) | |
| 23 | ||
| 24 | #define ndelay(n) (__builtin_constant_p(n) ? \ | |
| 25 | ((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \ | |
| 26 | __ndelay(n)) | |
| 27 | ||
| 28 | #endif /* _ASM_M32R_DELAY_H */ |