Linux Kernel  3.7.1
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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 
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 */