include/asm-m32r/delay.h

   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 */