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 unsigned int 38 msleep_interruptible(unsigned int msecs) 39 { 40 int r = tsleep_nsec(&nowake, PWAIT|PCATCH, "msleepi", 41 MSEC_TO_NSEC(msecs)); 42 if (r == EINTR) 43 return 1; 44 return 0; 45 } 46 47 #endif 48