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
  20 extern spinlock_t ioasic_ssr_lock;
  21
  22 extern volatile u32 *ioasic_base;
  23
  24 static inline void ioasic_write(unsigned int reg, u32 v)
  25 {
  26         ioasic_base[reg / 4] = v;
  27 }
  28
  29 static inline u32 ioasic_read(unsigned int reg)
  30 {
  31         return ioasic_base[reg / 4];
  32 }
  33
  34 extern void init_ioasic_irqs(int base);
  35
  36 extern int dec_ioasic_clocksource_init(void);
  37
  38 #endif /* __ASM_DEC_IOASIC_H */