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1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  *  arch/arm/mach-ebsa110/include/mach/io.h
4  *
5  *  Copyright (C) 1997,1998 Russell King
6  *
7  * Modifications:
8  *  06-Dec-1997	RMK	Created.
9  */
10 #ifndef __ASM_ARM_ARCH_IO_H
11 #define __ASM_ARM_ARCH_IO_H
12 
13 u8 __inb8(unsigned int port);
14 void __outb8(u8  val, unsigned int port);
15 
16 u8 __inb16(unsigned int port);
17 void __outb16(u8  val, unsigned int port);
18 
19 u16 __inw(unsigned int port);
20 void __outw(u16 val, unsigned int port);
21 
22 u32 __inl(unsigned int port);
23 void __outl(u32 val, unsigned int port);
24 
25 u8  __readb(const volatile void __iomem *addr);
26 u16 __readw(const volatile void __iomem *addr);
27 u32 __readl(const volatile void __iomem *addr);
28 
29 void __writeb(u8  val, volatile void __iomem *addr);
30 void __writew(u16 val, volatile void __iomem *addr);
31 void __writel(u32 val, volatile void __iomem *addr);
32 
33 /*
34  * Argh, someone forgot the IOCS16 line.  We therefore have to handle
35  * the byte stearing by selecting the correct byte IO functions here.
36  */
37 #ifdef ISA_SIXTEEN_BIT_PERIPHERAL
38 #define inb(p) 			__inb16(p)
39 #define outb(v,p)		__outb16(v,p)
40 #else
41 #define inb(p)			__inb8(p)
42 #define outb(v,p)		__outb8(v,p)
43 #endif
44 
45 #define inw(p)			__inw(p)
46 #define outw(v,p)		__outw(v,p)
47 
48 #define inl(p)			__inl(p)
49 #define outl(v,p)		__outl(v,p)
50 
51 #define readb(b)		__readb(b)
52 #define readw(b)		__readw(b)
53 #define readl(b)		__readl(b)
54 #define readb_relaxed(addr)	readb(addr)
55 #define readw_relaxed(addr)	readw(addr)
56 #define readl_relaxed(addr)	readl(addr)
57 
58 #define writeb(v,b)		__writeb(v,b)
59 #define writew(v,b)		__writew(v,b)
60 #define writel(v,b)		__writel(v,b)
61 
62 #define insb insb
63 extern void insb(unsigned int port, void *buf, int sz);
64 #define insw insw
65 extern void insw(unsigned int port, void *buf, int sz);
66 #define insl insl
67 extern void insl(unsigned int port, void *buf, int sz);
68 
69 #define outsb outsb
70 extern void outsb(unsigned int port, const void *buf, int sz);
71 #define outsw outsw
72 extern void outsw(unsigned int port, const void *buf, int sz);
73 #define outsl outsl
74 extern void outsl(unsigned int port, const void *buf, int sz);
75 
76 /* can't support writesb atm */
77 #define writesw writesw
78 extern void writesw(volatile void __iomem *addr, const void *data, int wordlen);
79 #define writesl writesl
80 extern void writesl(volatile void __iomem *addr, const void *data, int longlen);
81 
82 /* can't support readsb atm */
83 #define readsw readsw
84 extern void readsw(const volatile void __iomem *addr, void *data, int wordlen);
85 
86 #define readsl readsl
87 extern void readsl(const volatile void __iomem *addr, void *data, int longlen);
88 
89 #endif
90