1/*
2 * arch/sh/kernel/iomap.c
3 *
4 * Copyright (C) 2000  Niibe Yutaka
5 * Copyright (C) 2005 - 2007 Paul Mundt
6 *
7 * This file is subject to the terms and conditions of the GNU General Public
8 * License.  See the file "COPYING" in the main directory of this archive
9 * for more details.
10 */
11#include <linux/module.h>
12#include <linux/io.h>
13
14unsigned int ioread8(void __iomem *addr)
15{
16	return readb(addr);
17}
18EXPORT_SYMBOL(ioread8);
19
20unsigned int ioread16(void __iomem *addr)
21{
22	return readw(addr);
23}
24EXPORT_SYMBOL(ioread16);
25
26unsigned int ioread16be(void __iomem *addr)
27{
28	return be16_to_cpu(__raw_readw(addr));
29}
30EXPORT_SYMBOL(ioread16be);
31
32unsigned int ioread32(void __iomem *addr)
33{
34	return readl(addr);
35}
36EXPORT_SYMBOL(ioread32);
37
38unsigned int ioread32be(void __iomem *addr)
39{
40	return be32_to_cpu(__raw_readl(addr));
41}
42EXPORT_SYMBOL(ioread32be);
43
44void iowrite8(u8 val, void __iomem *addr)
45{
46	writeb(val, addr);
47}
48EXPORT_SYMBOL(iowrite8);
49
50void iowrite16(u16 val, void __iomem *addr)
51{
52	writew(val, addr);
53}
54EXPORT_SYMBOL(iowrite16);
55
56void iowrite16be(u16 val, void __iomem *addr)
57{
58	__raw_writew(cpu_to_be16(val), addr);
59}
60EXPORT_SYMBOL(iowrite16be);
61
62void iowrite32(u32 val, void __iomem *addr)
63{
64	writel(val, addr);
65}
66EXPORT_SYMBOL(iowrite32);
67
68void iowrite32be(u32 val, void __iomem *addr)
69{
70	__raw_writel(cpu_to_be32(val), addr);
71}
72EXPORT_SYMBOL(iowrite32be);
73
74/*
75 * These are the "repeat MMIO read/write" functions.
76 * Note the "__raw" accesses, since we don't want to
77 * convert to CPU byte order. We write in "IO byte
78 * order" (we also don't have IO barriers).
79 */
80static inline void mmio_insb(void __iomem *addr, u8 *dst, int count)
81{
82	while (--count >= 0) {
83		u8 data = __raw_readb(addr);
84		*dst = data;
85		dst++;
86	}
87}
88
89static inline void mmio_insw(void __iomem *addr, u16 *dst, int count)
90{
91	while (--count >= 0) {
92		u16 data = __raw_readw(addr);
93		*dst = data;
94		dst++;
95	}
96}
97
98static inline void mmio_insl(void __iomem *addr, u32 *dst, int count)
99{
100	while (--count >= 0) {
101		u32 data = __raw_readl(addr);
102		*dst = data;
103		dst++;
104	}
105}
106
107static inline void mmio_outsb(void __iomem *addr, const u8 *src, int count)
108{
109	while (--count >= 0) {
110		__raw_writeb(*src, addr);
111		src++;
112	}
113}
114
115static inline void mmio_outsw(void __iomem *addr, const u16 *src, int count)
116{
117	while (--count >= 0) {
118		__raw_writew(*src, addr);
119		src++;
120	}
121}
122
123static inline void mmio_outsl(void __iomem *addr, const u32 *src, int count)
124{
125	while (--count >= 0) {
126		__raw_writel(*src, addr);
127		src++;
128	}
129}
130
131void ioread8_rep(void __iomem *addr, void *dst, unsigned long count)
132{
133	mmio_insb(addr, dst, count);
134}
135EXPORT_SYMBOL(ioread8_rep);
136
137void ioread16_rep(void __iomem *addr, void *dst, unsigned long count)
138{
139	mmio_insw(addr, dst, count);
140}
141EXPORT_SYMBOL(ioread16_rep);
142
143void ioread32_rep(void __iomem *addr, void *dst, unsigned long count)
144{
145	mmio_insl(addr, dst, count);
146}
147EXPORT_SYMBOL(ioread32_rep);
148
149void iowrite8_rep(void __iomem *addr, const void *src, unsigned long count)
150{
151	mmio_outsb(addr, src, count);
152}
153EXPORT_SYMBOL(iowrite8_rep);
154
155void iowrite16_rep(void __iomem *addr, const void *src, unsigned long count)
156{
157	mmio_outsw(addr, src, count);
158}
159EXPORT_SYMBOL(iowrite16_rep);
160
161void iowrite32_rep(void __iomem *addr, const void *src, unsigned long count)
162{
163	mmio_outsl(addr, src, count);
164}
165EXPORT_SYMBOL(iowrite32_rep);
166