1 /*
2 * arch/arm/mach-ebsa110/include/mach/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 u8 __inb8(unsigned int port);
19 void __outb8(u8 val, unsigned int port);
20
21 u8 __inb16(unsigned int port);
22 void __outb16(u8 val, unsigned int port);
23
24 u16 __inw(unsigned int port);
25 void __outw(u16 val, unsigned int port);
26
27 u32 __inl(unsigned int port);
28 void __outl(u32 val, unsigned int port);
29
30 u8 __readb(const volatile void __iomem *addr);
31 u16 __readw(const volatile void __iomem *addr);
32 u32 __readl(const volatile void __iomem *addr);
33
34 void __writeb(u8 val, void __iomem *addr);
35 void __writew(u16 val, void __iomem *addr);
36 void __writel(u32 val, void __iomem *addr);
37
38 /*
39 * Argh, someone forgot the IOCS16 line. We therefore have to handle
40 * the byte stearing by selecting the correct byte IO functions here.
41 */
42 #ifdef ISA_SIXTEEN_BIT_PERIPHERAL
43 #define inb(p) __inb16(p)
44 #define outb(v,p) __outb16(v,p)
45 #else
46 #define inb(p) __inb8(p)
47 #define outb(v,p) __outb8(v,p)
48 #endif
49
50 #define inw(p) __inw(p)
51 #define outw(v,p) __outw(v,p)
52
53 #define inl(p) __inl(p)
54 #define outl(v,p) __outl(v,p)
55
56 #define readb(b) __readb(b)
57 #define readw(b) __readw(b)
58 #define readl(b) __readl(b)
59 #define readb_relaxed(addr) readb(addr)
60 #define readw_relaxed(addr) readw(addr)
61 #define readl_relaxed(addr) readl(addr)
62
63 #define writeb(v,b) __writeb(v,b)
64 #define writew(v,b) __writew(v,b)
65 #define writel(v,b) __writel(v,b)
66
67 static inline void __iomem *__arch_ioremap(unsigned long cookie, size_t size,
68 unsigned int flags)
69 {
70 return (void __iomem *)cookie;
71 }
72
73 #define __arch_ioremap __arch_ioremap
74 #define __arch_iounmap(cookie) do { } while (0)
75
76 extern void insb(unsigned int port, void *buf, int sz);
77 extern void insw(unsigned int port, void *buf, int sz);
78 extern void insl(unsigned int port, void *buf, int sz);
79
80 extern void outsb(unsigned int port, const void *buf, int sz);
81 extern void outsw(unsigned int port, const void *buf, int sz);
82 extern void outsl(unsigned int port, const void *buf, int sz);
83
84 /* can't support writesb atm */
85 extern void writesw(void __iomem *addr, const void *data, int wordlen);
86 extern void writesl(void __iomem *addr, const void *data, int longlen);
87
88 /* can't support readsb atm */
89 extern void readsw(const void __iomem *addr, void *data, int wordlen);
90 extern void readsl(const void __iomem *addr, void *data, int longlen);
91
92 #endif
93
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