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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/arm/mach-ebsa110/include/mach/io.h
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/*

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 *  arch/arm/mach-ebsa110/include/mach/io.h

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 *

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 *  Copyright (C) 1997,1998 Russell King

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 *

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 * This program is free software; you can redistribute it and/or modify

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 * it under the terms of the GNU General Public License version 2 as

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 * published by the Free Software Foundation.

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 *

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 * Modifications:

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 *  06-Dec-1997	RMK	Created.

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 */

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#ifndef __ASM_ARM_ARCH_IO_H

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#define __ASM_ARM_ARCH_IO_H

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#define IO_SPACE_LIMIT 0xffff

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u8 __inb8(unsigned int port);

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void __outb8(u8  val, unsigned int port);

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u8 __inb16(unsigned int port);

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void __outb16(u8  val, unsigned int port);

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u16 __inw(unsigned int port);

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void __outw(u16 val, unsigned int port);

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u32 __inl(unsigned int port);

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void __outl(u32 val, unsigned int port);

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u8  __readb(const volatile void __iomem *addr);

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u16 __readw(const volatile void __iomem *addr);

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u32 __readl(const volatile void __iomem *addr);

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void __writeb(u8  val, void __iomem *addr);

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void __writew(u16 val, void __iomem *addr);

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void __writel(u32 val, void __iomem *addr);

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/*

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 * Argh, someone forgot the IOCS16 line.  We therefore have to handle

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 * the byte stearing by selecting the correct byte IO functions here.

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 */

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#ifdef ISA_SIXTEEN_BIT_PERIPHERAL

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#define inb(p) 			__inb16(p)

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#define outb(v,p)		__outb16(v,p)

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#else

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#define inb(p)			__inb8(p)

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#define outb(v,p)		__outb8(v,p)

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#endif

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#define inw(p)			__inw(p)

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#define outw(v,p)		__outw(v,p)

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#define inl(p)			__inl(p)

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#define outl(v,p)		__outl(v,p)

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#define readb(b)		__readb(b)

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#define readw(b)		__readw(b)

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#define readl(b)		__readl(b)

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#define readb_relaxed(addr)	readb(addr)

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#define readw_relaxed(addr)	readw(addr)

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#define readl_relaxed(addr)	readl(addr)

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#define writeb(v,b)		__writeb(v,b)

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#define writew(v,b)		__writew(v,b)

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#define writel(v,b)		__writel(v,b)

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static inline void __iomem *__arch_ioremap(unsigned long cookie, size_t size,

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					   unsigned int flags)

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{

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	return (void __iomem *)cookie;

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}

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#define __arch_ioremap		__arch_ioremap

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#define __arch_iounmap(cookie)	do { } while (0)

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extern void insb(unsigned int port, void *buf, int sz);

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extern void insw(unsigned int port, void *buf, int sz);

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extern void insl(unsigned int port, void *buf, int sz);

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extern void outsb(unsigned int port, const void *buf, int sz);

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extern void outsw(unsigned int port, const void *buf, int sz);

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extern void outsl(unsigned int port, const void *buf, int sz);

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/* can't support writesb atm */

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extern void writesw(void __iomem *addr, const void *data, int wordlen);

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extern void writesl(void __iomem *addr, const void *data, int longlen);

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/* can't support readsb atm */

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extern void readsw(const void __iomem *addr, void *data, int wordlen);

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extern void readsl(const void __iomem *addr, void *data, int longlen);

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#endif

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