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Linux/arch/mips/include/asm/dec/ioasic.h

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  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 void dec_ioasic_clocksource_init(void);
 37 
 38 #endif /* __ASM_DEC_IOASIC_H */
 39 

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