1#ifndef _M68KNOMMU_IO_H
2#define _M68KNOMMU_IO_H
3
4#ifdef __KERNEL__
5
6#include <asm/virtconvert.h>
7#include <asm-generic/iomap.h>
8
9
10
11
12
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14
15
16
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20
21
22
23
24
25
26static inline unsigned short _swapw(volatile unsigned short v)
27{
28 return ((v << 8) | (v >> 8));
29}
30
31static inline unsigned int _swapl(volatile unsigned long v)
32{
33 return ((v << 24) | ((v & 0xff00) << 8) | ((v & 0xff0000) >> 8) | (v >> 24));
34}
35
36#define readb(addr) \
37 ({ unsigned char __v = (*(volatile unsigned char *) (addr)); __v; })
38#define readw(addr) \
39 ({ unsigned short __v = (*(volatile unsigned short *) (addr)); __v; })
40#define readl(addr) \
41 ({ unsigned int __v = (*(volatile unsigned int *) (addr)); __v; })
42
43#define writeb(b,addr) (void)((*(volatile unsigned char *) (addr)) = (b))
44#define writew(b,addr) (void)((*(volatile unsigned short *) (addr)) = (b))
45#define writel(b,addr) (void)((*(volatile unsigned int *) (addr)) = (b))
46
47#define __raw_readb readb
48#define __raw_readw readw
49#define __raw_readl readl
50#define __raw_writeb writeb
51#define __raw_writew writew
52#define __raw_writel writel
53
54static inline void io_outsb(unsigned int addr, const void *buf, int len)
55{
56 volatile unsigned char *ap = (volatile unsigned char *) addr;
57 unsigned char *bp = (unsigned char *) buf;
58 while (len--)
59 *ap = *bp++;
60}
61
62static inline void io_outsw(unsigned int addr, const void *buf, int len)
63{
64 volatile unsigned short *ap = (volatile unsigned short *) addr;
65 unsigned short *bp = (unsigned short *) buf;
66 while (len--)
67 *ap = _swapw(*bp++);
68}
69
70static inline void io_outsl(unsigned int addr, const void *buf, int len)
71{
72 volatile unsigned int *ap = (volatile unsigned int *) addr;
73 unsigned int *bp = (unsigned int *) buf;
74 while (len--)
75 *ap = _swapl(*bp++);
76}
77
78static inline void io_insb(unsigned int addr, void *buf, int len)
79{
80 volatile unsigned char *ap = (volatile unsigned char *) addr;
81 unsigned char *bp = (unsigned char *) buf;
82 while (len--)
83 *bp++ = *ap;
84}
85
86static inline void io_insw(unsigned int addr, void *buf, int len)
87{
88 volatile unsigned short *ap = (volatile unsigned short *) addr;
89 unsigned short *bp = (unsigned short *) buf;
90 while (len--)
91 *bp++ = _swapw(*ap);
92}
93
94static inline void io_insl(unsigned int addr, void *buf, int len)
95{
96 volatile unsigned int *ap = (volatile unsigned int *) addr;
97 unsigned int *bp = (unsigned int *) buf;
98 while (len--)
99 *bp++ = _swapl(*ap);
100}
101
102#define mmiowb()
103
104
105
106
107
108
109#define memset_io(a,b,c) memset((void *)(a),(b),(c))
110#define memcpy_fromio(a,b,c) memcpy((a),(void *)(b),(c))
111#define memcpy_toio(a,b,c) memcpy((void *)(a),(b),(c))
112
113#define inb(addr) readb(addr)
114#define inw(addr) readw(addr)
115#define inl(addr) readl(addr)
116#define outb(x,addr) ((void) writeb(x,addr))
117#define outw(x,addr) ((void) writew(x,addr))
118#define outl(x,addr) ((void) writel(x,addr))
119
120#define inb_p(addr) inb(addr)
121#define inw_p(addr) inw(addr)
122#define inl_p(addr) inl(addr)
123#define outb_p(x,addr) outb(x,addr)
124#define outw_p(x,addr) outw(x,addr)
125#define outl_p(x,addr) outl(x,addr)
126
127#define outsb(a,b,l) io_outsb(a,b,l)
128#define outsw(a,b,l) io_outsw(a,b,l)
129#define outsl(a,b,l) io_outsl(a,b,l)
130
131#define insb(a,b,l) io_insb(a,b,l)
132#define insw(a,b,l) io_insw(a,b,l)
133#define insl(a,b,l) io_insl(a,b,l)
134
135#define IO_SPACE_LIMIT 0xffffffff
136
137
138
139#define IOMAP_FULL_CACHING 0
140#define IOMAP_NOCACHE_SER 1
141#define IOMAP_NOCACHE_NONSER 2
142#define IOMAP_WRITETHROUGH 3
143
144static inline void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag)
145{
146 return (void *) physaddr;
147}
148static inline void *ioremap(unsigned long physaddr, unsigned long size)
149{
150 return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
151}
152static inline void *ioremap_nocache(unsigned long physaddr, unsigned long size)
153{
154 return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
155}
156static inline void *ioremap_writethrough(unsigned long physaddr, unsigned long size)
157{
158 return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
159}
160static inline void *ioremap_fullcache(unsigned long physaddr, unsigned long size)
161{
162 return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
163}
164
165#define iounmap(addr) do { } while(0)
166
167
168
169
170
171#define xlate_dev_mem_ptr(p) __va(p)
172
173
174
175
176#define xlate_dev_kmem_ptr(p) p
177
178static inline void __iomem *ioport_map(unsigned long port, unsigned int nr)
179{
180 return (void __iomem *) port;
181}
182
183static inline void ioport_unmap(void __iomem *p)
184{
185}
186
187#endif
188
189#endif
190