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io.h
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1 /*
2  * Copyright 2004-2010 Analog Devices Inc.
3  *
4  * Licensed under the GPL-2 or later.
5  */
6 
7 #ifndef _BFIN_IO_H
8 #define _BFIN_IO_H
9 
10 #include <linux/compiler.h>
11 #include <linux/types.h>
12 #include <asm/byteorder.h>
13 
14 #define DECLARE_BFIN_RAW_READX(size, type, asm, asm_sign) \
15 static inline type __raw_read##size(const volatile void __iomem *addr) \
16 { \
17  unsigned int val; \
18  int tmp; \
19  __asm__ __volatile__ ( \
20  "cli %1;" \
21  "NOP; NOP; SSYNC;" \
22  "%0 = "#asm" [%2] "#asm_sign";" \
23  "sti %1;" \
24  : "=d"(val), "=d"(tmp) \
25  : "a"(addr) \
26  ); \
27  return (type) val; \
28 }
30 #define __raw_readb __raw_readb
32 #define __raw_readw __raw_readw
34 #define __raw_readl __raw_readl
35 
36 extern void outsb(unsigned long port, const void *addr, unsigned long count);
37 extern void outsw(unsigned long port, const void *addr, unsigned long count);
38 extern void outsw_8(unsigned long port, const void *addr, unsigned long count);
39 extern void outsl(unsigned long port, const void *addr, unsigned long count);
40 #define outsb outsb
41 #define outsw outsw
42 #define outsl outsl
43 
44 extern void insb(unsigned long port, void *addr, unsigned long count);
45 extern void insw(unsigned long port, void *addr, unsigned long count);
46 extern void insw_8(unsigned long port, void *addr, unsigned long count);
47 extern void insl(unsigned long port, void *addr, unsigned long count);
48 extern void insl_16(unsigned long port, void *addr, unsigned long count);
49 #define insb insb
50 #define insw insw
51 #define insl insl
52 
53 extern void dma_outsb(unsigned long port, const void *addr, unsigned short count);
54 extern void dma_outsw(unsigned long port, const void *addr, unsigned short count);
55 extern void dma_outsl(unsigned long port, const void *addr, unsigned short count);
56 
57 extern void dma_insb(unsigned long port, void *addr, unsigned short count);
58 extern void dma_insw(unsigned long port, void *addr, unsigned short count);
59 extern void dma_insl(unsigned long port, void *addr, unsigned short count);
60 
67 #define mmiowb() do { SSYNC(); wmb(); } while (0)
68 
69 #include <asm-generic/io.h>
70 
71 #endif