delay.h 705 B

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  1. #ifndef _ASM_M32R_DELAY_H
  2. #define _ASM_M32R_DELAY_H
  3. /* $Id$ */
  4. /*
  5. * Copyright (C) 1993 Linus Torvalds
  6. *
  7. * Delay routines calling functions in arch/m32r/lib/delay.c
  8. */
  9. extern void __bad_udelay(void);
  10. extern void __bad_ndelay(void);
  11. extern void __udelay(unsigned long usecs);
  12. extern void __ndelay(unsigned long nsecs);
  13. extern void __const_udelay(unsigned long usecs);
  14. extern void __delay(unsigned long loops);
  15. #define udelay(n) (__builtin_constant_p(n) ? \
  16. ((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c7ul)) : \
  17. __udelay(n))
  18. #define ndelay(n) (__builtin_constant_p(n) ? \
  19. ((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \
  20. __ndelay(n))
  21. #endif /* _ASM_M32R_DELAY_H */