1/*
2 *  linux/include/asm-arm/arch-ebsa110/io.h
3 *
4 *  Copyright (C) 1997,1998 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 * Modifications:
11 *  06-Dec-1997	RMK	Created.
12 */
13#ifndef __ASM_ARM_ARCH_IO_H
14#define __ASM_ARM_ARCH_IO_H
15
16#define IO_SPACE_LIMIT 0xffff
17
18/*
19 * Generic virtual read/write
20 */
21#define __arch_getw(a)		(*(volatile unsigned short *)(a))
22#define __arch_putw(v,a)	(*(volatile unsigned short *)(a) = (v))
23
24u8 __inb8(unsigned int port);
25void __outb8(u8  val, unsigned int port);
26
27u8 __inb16(unsigned int port);
28void __outb16(u8  val, unsigned int port);
29
30u16 __inw(unsigned int port);
31void __outw(u16 val, unsigned int port);
32
33u32 __inl(unsigned int port);
34void __outl(u32 val, unsigned int port);
35
36u8  __readb(void *addr);
37u16 __readw(void *addr);
38u32 __readl(void *addr);
39
40void __writeb(u8  val, void *addr);
41void __writew(u16 val, void *addr);
42void __writel(u32 val, void *addr);
43
44/*
45 * Argh, someone forgot the IOCS16 line.  We therefore have to handle
46 * the byte stearing by selecting the correct byte IO functions here.
47 */
48#ifdef ISA_SIXTEEN_BIT_PERIPHERAL
49#define inb(p)			__inb16(p)
50#define outb(v,p)		__outb16(v,p)
51#else
52#define inb(p)			__inb8(p)
53#define outb(v,p)		__outb8(v,p)
54#endif
55
56#define inw(p)			__inw(p)
57#define outw(v,p)		__outw(v,p)
58
59#define inl(p)			__inl(p)
60#define outl(v,p)		__outl(v,p)
61
62#define readb(b)		__readb(b)
63#define readw(b)		__readw(b)
64#define readl(b)		__readl(b)
65
66#define writeb(v,b)		__writeb(v,b)
67#define writew(v,b)		__writew(v,b)
68#define writel(v,b)		__writel(v,b)
69
70#define __arch_ioremap(off,sz,c)	((void *)(off))
71#define __arch_iounmap(virt)		do { } while (0)
72
73extern void insb(unsigned int port, void *buf, int sz);
74extern void insw(unsigned int port, void *buf, int sz);
75extern void insl(unsigned int port, void *buf, int sz);
76
77extern void outsb(unsigned int port, const void *buf, int sz);
78extern void outsw(unsigned int port, const void *buf, int sz);
79extern void outsl(unsigned int port, const void *buf, int sz);
80
81#endif
82