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
ioread8(void __iomem * addr)14 unsigned int ioread8(void __iomem *addr)
15 {
16 return readb(addr);
17 }
18 EXPORT_SYMBOL(ioread8);
19
ioread16(void __iomem * addr)20 unsigned int ioread16(void __iomem *addr)
21 {
22 return readw(addr);
23 }
24 EXPORT_SYMBOL(ioread16);
25
ioread16be(void __iomem * addr)26 unsigned int ioread16be(void __iomem *addr)
27 {
28 return be16_to_cpu(__raw_readw(addr));
29 }
30 EXPORT_SYMBOL(ioread16be);
31
ioread32(void __iomem * addr)32 unsigned int ioread32(void __iomem *addr)
33 {
34 return readl(addr);
35 }
36 EXPORT_SYMBOL(ioread32);
37
ioread32be(void __iomem * addr)38 unsigned int ioread32be(void __iomem *addr)
39 {
40 return be32_to_cpu(__raw_readl(addr));
41 }
42 EXPORT_SYMBOL(ioread32be);
43
iowrite8(u8 val,void __iomem * addr)44 void iowrite8(u8 val, void __iomem *addr)
45 {
46 writeb(val, addr);
47 }
48 EXPORT_SYMBOL(iowrite8);
49
iowrite16(u16 val,void __iomem * addr)50 void iowrite16(u16 val, void __iomem *addr)
51 {
52 writew(val, addr);
53 }
54 EXPORT_SYMBOL(iowrite16);
55
iowrite16be(u16 val,void __iomem * addr)56 void iowrite16be(u16 val, void __iomem *addr)
57 {
58 __raw_writew(cpu_to_be16(val), addr);
59 }
60 EXPORT_SYMBOL(iowrite16be);
61
iowrite32(u32 val,void __iomem * addr)62 void iowrite32(u32 val, void __iomem *addr)
63 {
64 writel(val, addr);
65 }
66 EXPORT_SYMBOL(iowrite32);
67
iowrite32be(u32 val,void __iomem * addr)68 void iowrite32be(u32 val, void __iomem *addr)
69 {
70 __raw_writel(cpu_to_be32(val), addr);
71 }
72 EXPORT_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 */
mmio_insb(void __iomem * addr,u8 * dst,int count)80 static 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
mmio_insw(void __iomem * addr,u16 * dst,int count)89 static 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
mmio_insl(void __iomem * addr,u32 * dst,int count)98 static 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
mmio_outsb(void __iomem * addr,const u8 * src,int count)107 static 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
mmio_outsw(void __iomem * addr,const u16 * src,int count)115 static 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
mmio_outsl(void __iomem * addr,const u32 * src,int count)123 static 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
ioread8_rep(void __iomem * addr,void * dst,unsigned long count)131 void ioread8_rep(void __iomem *addr, void *dst, unsigned long count)
132 {
133 mmio_insb(addr, dst, count);
134 }
135 EXPORT_SYMBOL(ioread8_rep);
136
ioread16_rep(void __iomem * addr,void * dst,unsigned long count)137 void ioread16_rep(void __iomem *addr, void *dst, unsigned long count)
138 {
139 mmio_insw(addr, dst, count);
140 }
141 EXPORT_SYMBOL(ioread16_rep);
142
ioread32_rep(void __iomem * addr,void * dst,unsigned long count)143 void ioread32_rep(void __iomem *addr, void *dst, unsigned long count)
144 {
145 mmio_insl(addr, dst, count);
146 }
147 EXPORT_SYMBOL(ioread32_rep);
148
iowrite8_rep(void __iomem * addr,const void * src,unsigned long count)149 void iowrite8_rep(void __iomem *addr, const void *src, unsigned long count)
150 {
151 mmio_outsb(addr, src, count);
152 }
153 EXPORT_SYMBOL(iowrite8_rep);
154
iowrite16_rep(void __iomem * addr,const void * src,unsigned long count)155 void iowrite16_rep(void __iomem *addr, const void *src, unsigned long count)
156 {
157 mmio_outsw(addr, src, count);
158 }
159 EXPORT_SYMBOL(iowrite16_rep);
160
iowrite32_rep(void __iomem * addr,const void * src,unsigned long count)161 void iowrite32_rep(void __iomem *addr, const void *src, unsigned long count)
162 {
163 mmio_outsl(addr, src, count);
164 }
165 EXPORT_SYMBOL(iowrite32_rep);
166