1#ifndef __ASM_GENERIC_DELAY_H
2#define __ASM_GENERIC_DELAY_H
3
4
5extern void __bad_udelay(void);
6extern void __bad_ndelay(void);
7
8extern void __udelay(unsigned long usecs);
9extern void __ndelay(unsigned long nsecs);
10extern void __const_udelay(unsigned long xloops);
11extern void __delay(unsigned long loops);
12
13
14
15
16
17
18
19#define udelay(n) \
20 ({ \
21 if (__builtin_constant_p(n)) { \
22 if ((n) / 20000 >= 1) \
23 __bad_udelay(); \
24 else \
25 __const_udelay((n) * 0x10c7ul); \
26 } else { \
27 __udelay(n); \
28 } \
29 })
30
31
32#define ndelay(n) \
33 ({ \
34 if (__builtin_constant_p(n)) { \
35 if ((n) / 20000 >= 1) \
36 __bad_ndelay(); \
37 else \
38 __const_udelay((n) * 5ul); \
39 } else { \
40 __ndelay(n); \
41 } \
42 })
43
44#endif
45