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 */ 39