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/*
* linux/include/asm-arm/io.h
*
* Copyright (C) 1996-2000 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Modifications:
* 16-Sep-1996 RMK Inlined the inx/outx functions & optimised for both
* constant addresses and variable addresses.
* 04-Dec-1997 RMK Moved a lot of this stuff to the new architecture
* specific IO header files.
* 27-Mar-1999 PJB Second parameter of memcpy_toio is const..
* 04-Apr-1999 PJB Added check_signature.
* 12-Dec-1999 RMK More cleanups
* 18-Jun-2000 RMK Removed virt_to_* and friends definitions
*/
/**
* @file
* @brief ARM IO access functions
*/
#ifndef __ASM_ARM_IO_H
#define __ASM_ARM_IO_H
#define __raw_writeb(v,a) (*(volatile unsigned char *)(a) = (v))
#define __raw_writew(v,a) (*(volatile unsigned short *)(a) = (v))
#define __raw_writel(v,a) (*(volatile unsigned int *)(a) = (v))
#define __raw_readb(a) (*(volatile unsigned char *)(a))
#define __raw_readw(a) (*(volatile unsigned short *)(a))
#define __raw_readl(a) (*(volatile unsigned int *)(a))
#define writeb(v,a) __raw_writeb(v,a)
#define writew(v,a) __raw_writew(v,a)
#define writel(v,a) __raw_writel(v,a)
#define readb(a) __raw_readb(a)
#define readw(a) __raw_readw(a)
#define readl(a) __raw_readl(a)
/* for the ARM architecture the string functions are library based */
extern void writesb(void __iomem*, const void*, int);
extern void writesw(void __iomem*, const void*, int);
extern void writesl(void __iomem*, const void*, int);
extern void readsb(const void __iomem*, void*, int);
extern void readsw(const void __iomem*, void*, int);
extern void readsl(const void __iomem*, void*, int);
#endif /* __ASM_ARM_IO_H */
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