include/linux/delay.h

1 /* Public domain. */
2
3#ifndef _LINUX_DELAY_H
4#define _LINUX_DELAY_H
5
6#include <sys/param.h>
7#include <sys/systm.h>
8
9 static inline void
10 udelay(unsigned long usecs)
11{
12 DELAY(usecs);
13}
14
15 static inline void
16 ndelay(unsigned long nsecs)
17{
18 DELAY(MAX(nsecs / 1000, 1));
19}
20
21 static inline void
22 usleep_range(unsigned long min, unsigned long max)
23{
24 DELAY((min + max) / 2);
25}
26
27 static inline void
28 mdelay(unsigned long msecs)
29{
30 int loops = msecs;
31 while (loops--)
32 DELAY(1000);
33}
34
35#define drm_msleep(x) mdelay(x)
36
37 static inline void
38 fsleep(unsigned long usecs)
39{
40 DELAY(usecs);
41}
42
43 static inline unsigned int
44 msleep_interruptible(unsigned int msecs)
45{
46 int r = tsleep_nsec(&nowake, PWAIT|PCATCH, "msleepi",
47 MSEC_TO_NSEC(msecs));
48 if (r == EINTR)
49 return 1;
50 return 0;
51}
52
53#endif
54