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
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12
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15
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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 readb_relaxed(addr) readb(addr)
44#define readw_relaxed(addr) readw(addr)
45#define readl_relaxed(addr) readl(addr)
46
47#define writeb(b,addr) (void)((*(volatile unsigned char *) (addr)) = (b))
48#define writew(b,addr) (void)((*(volatile unsigned short *) (addr)) = (b))
49#define writel(b,addr) (void)((*(volatile unsigned int *) (addr)) = (b))
50
51#define __raw_readb readb
52#define __raw_readw readw
53#define __raw_readl readl
54#define __raw_writeb writeb
55#define __raw_writew writew
56#define __raw_writel writel
57
58static inline void io_outsb(unsigned int addr, void *buf, int len)
59{
60 volatile unsigned char *ap = (volatile unsigned char *) addr;
61 unsigned char *bp = (unsigned char *) buf;
62 while (len--)
63 *ap = *bp++;
64}
65
66static inline void io_outsw(unsigned int addr, void *buf, int len)
67{
68 volatile unsigned short *ap = (volatile unsigned short *) addr;
69 unsigned short *bp = (unsigned short *) buf;
70 while (len--)
71 *ap = _swapw(*bp++);
72}
73
74static inline void io_outsl(unsigned int addr, void *buf, int len)
75{
76 volatile unsigned int *ap = (volatile unsigned int *) addr;
77 unsigned int *bp = (unsigned int *) buf;
78 while (len--)
79 *ap = _swapl(*bp++);
80}
81
82static inline void io_insb(unsigned int addr, void *buf, int len)
83{
84 volatile unsigned char *ap = (volatile unsigned char *) addr;
85 unsigned char *bp = (unsigned char *) buf;
86 while (len--)
87 *bp++ = *ap;
88}
89
90static inline void io_insw(unsigned int addr, void *buf, int len)
91{
92 volatile unsigned short *ap = (volatile unsigned short *) addr;
93 unsigned short *bp = (unsigned short *) buf;
94 while (len--)
95 *bp++ = _swapw(*ap);
96}
97
98static inline void io_insl(unsigned int addr, void *buf, int len)
99{
100 volatile unsigned int *ap = (volatile unsigned int *) addr;
101 unsigned int *bp = (unsigned int *) buf;
102 while (len--)
103 *bp++ = _swapl(*ap);
104}
105
106#define mmiowb()
107
108
109
110
111
112
113#define memset_io(a,b,c) memset((void *)(a),(b),(c))
114#define memcpy_fromio(a,b,c) memcpy((a),(void *)(b),(c))
115#define memcpy_toio(a,b,c) memcpy((void *)(a),(b),(c))
116
117#define inb(addr) readb(addr)
118#define inw(addr) readw(addr)
119#define inl(addr) readl(addr)
120#define outb(x,addr) ((void) writeb(x,addr))
121#define outw(x,addr) ((void) writew(x,addr))
122#define outl(x,addr) ((void) writel(x,addr))
123
124#define inb_p(addr) inb(addr)
125#define inw_p(addr) inw(addr)
126#define inl_p(addr) inl(addr)
127#define outb_p(x,addr) outb(x,addr)
128#define outw_p(x,addr) outw(x,addr)
129#define outl_p(x,addr) outl(x,addr)
130
131#define outsb(a,b,l) io_outsb(a,b,l)
132#define outsw(a,b,l) io_outsw(a,b,l)
133#define outsl(a,b,l) io_outsl(a,b,l)
134
135#define insb(a,b,l) io_insb(a,b,l)
136#define insw(a,b,l) io_insw(a,b,l)
137#define insl(a,b,l) io_insl(a,b,l)
138
139#define IO_SPACE_LIMIT 0xffffffff
140
141
142
143#define IOMAP_FULL_CACHING 0
144#define IOMAP_NOCACHE_SER 1
145#define IOMAP_NOCACHE_NONSER 2
146#define IOMAP_WRITETHROUGH 3
147
148static inline void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag)
149{
150 return (void *) physaddr;
151}
152static inline void *ioremap(unsigned long physaddr, unsigned long size)
153{
154 return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
155}
156static inline void *ioremap_nocache(unsigned long physaddr, unsigned long size)
157{
158 return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
159}
160static inline void *ioremap_writethrough(unsigned long physaddr, unsigned long size)
161{
162 return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
163}
164static inline void *ioremap_fullcache(unsigned long physaddr, unsigned long size)
165{
166 return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
167}
168
169#define iounmap(addr) do { } while(0)
170
171
172
173
174
175#define xlate_dev_mem_ptr(p) __va(p)
176
177
178
179
180#define xlate_dev_kmem_ptr(p) p
181
182#endif
183
184#endif
185