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 u8 __inb8(unsigned int port);
17 void __outb8(u8 val, unsigned int port);
18
19 u8 __inb16(unsigned int port);
20 void __outb16(u8 val, unsigned int port);
21
22 u16 __inw(unsigned int port);
23 void __outw(u16 val, unsigned int port);
24
25 u32 __inl(unsigned int port);
26 void __outl(u32 val, unsigned int port);
27
28 u8 __readb(const volatile void __iomem *addr);
29 u16 __readw(const volatile void __iomem *addr);
30 u32 __readl(const volatile void __iomem *addr);
31
32 void __writeb(u8 val, void __iomem *addr);
33 void __writew(u16 val, void __iomem *addr);
34 void __writel(u32 val, void __iomem *addr);
35
36 /*
37 * Argh, someone forgot the IOCS16 line. We therefore have to handle
38 * the byte stearing by selecting the correct byte IO functions here.
39 */
40 #ifdef ISA_SIXTEEN_BIT_PERIPHERAL
41 #define inb(p) __inb16(p)
42 #define outb(v,p) __outb16(v,p)
43 #else
44 #define inb(p) __inb8(p)
45 #define outb(v,p) __outb8(v,p)
46 #endif
47
48 #define inw(p) __inw(p)
49 #define outw(v,p) __outw(v,p)
50
51 #define inl(p) __inl(p)
52 #define outl(v,p) __outl(v,p)
53
54 #define readb(b) __readb(b)
55 #define readw(b) __readw(b)
56 #define readl(b) __readl(b)
57 #define readb_relaxed(addr) readb(addr)
58 #define readw_relaxed(addr) readw(addr)
59 #define readl_relaxed(addr) readl(addr)
60
61 #define writeb(v,b) __writeb(v,b)
62 #define writew(v,b) __writew(v,b)
63 #define writel(v,b) __writel(v,b)
64
__arch_ioremap(unsigned long cookie,size_t size,unsigned int flags)65 static inline void __iomem *__arch_ioremap(unsigned long cookie, size_t size,
66 unsigned int flags)
67 {
68 return (void __iomem *)cookie;
69 }
70
71 #define __arch_ioremap __arch_ioremap
72 #define __arch_iounmap(cookie) do { } while (0)
73
74 extern void insb(unsigned int port, void *buf, int sz);
75 extern void insw(unsigned int port, void *buf, int sz);
76 extern void insl(unsigned int port, void *buf, int sz);
77
78 extern void outsb(unsigned int port, const void *buf, int sz);
79 extern void outsw(unsigned int port, const void *buf, int sz);
80 extern void outsl(unsigned int port, const void *buf, int sz);
81
82 /* can't support writesb atm */
83 extern void writesw(void __iomem *addr, const void *data, int wordlen);
84 extern void writesl(void __iomem *addr, const void *data, int longlen);
85
86 /* can't support readsb atm */
87 extern void readsw(const void __iomem *addr, void *data, int wordlen);
88 extern void readsl(const void __iomem *addr, void *data, int longlen);
89
90 #endif
91