LXR linux/arch/mips/include/asm/dec/ioasic.h

   1/*
   2 *      include/asm-mips/dec/ioasic.h
   3 *
   4 *      DEC I/O ASIC access operations.
   5 *
   6 *      Copyright (C) 2000, 2002, 2003  Maciej W. Rozycki
   7 *
   8 *      This program is free software; you can redistribute it and/or
   9 *      modify it under the terms of the GNU General Public License
  10 *      as published by the Free Software Foundation; either version
  11 *      2 of the License, or (at your option) any later version.
  12 */
  13
  14#ifndef __ASM_DEC_IOASIC_H
  15#define __ASM_DEC_IOASIC_H
  16
  17#include <linux/spinlock.h>
  18#include <linux/types.h>
  19
  20extern spinlock_t ioasic_ssr_lock;
  21
  22extern volatile u32 *ioasic_base;
  23
  24static inline void ioasic_write(unsigned int reg, u32 v)
  25{
  26        ioasic_base[reg / 4] = v;
  27}
  28
  29static inline u32 ioasic_read(unsigned int reg)
  30{
  31        return ioasic_base[reg / 4];
  32}
  33
  34extern void init_ioasic_irqs(int base);
  35
  36extern int dec_ioasic_clocksource_init(void);
  37
  38#endif /* __ASM_DEC_IOASIC_H */
  39