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) \
15static 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}
29DECLARE_BFIN_RAW_READX(b, u8, b, (z))
30#define __raw_readb __raw_readb
31DECLARE_BFIN_RAW_READX(w, u16, w, (z))
32#define __raw_readw __raw_readw
33DECLARE_BFIN_RAW_READX(l, u32, , )
34#define __raw_readl __raw_readl
35
36extern void outsb(unsigned long port, const void *addr, unsigned long count);
37extern void outsw(unsigned long port, const void *addr, unsigned long count);
38extern void outsw_8(unsigned long port, const void *addr, unsigned long count);
39extern void outsl(unsigned long port, const void *addr, unsigned long count);
40#define outsb outsb
41#define outsw outsw
42#define outsl outsl
43
44extern void insb(unsigned long port, void *addr, unsigned long count);
45extern void insw(unsigned long port, void *addr, unsigned long count);
46extern void insw_8(unsigned long port, void *addr, unsigned long count);
47extern void insl(unsigned long port, void *addr, unsigned long count);
48extern void insl_16(unsigned long port, void *addr, unsigned long count);
49#define insb insb
50#define insw insw
51#define insl insl
52
53extern void dma_outsb(unsigned long port, const void *addr, unsigned short count);
54extern void dma_outsw(unsigned long port, const void *addr, unsigned short count);
55extern void dma_outsl(unsigned long port, const void *addr, unsigned short count);
56
57extern void dma_insb(unsigned long port, void *addr, unsigned short count);
58extern void dma_insw(unsigned long port, void *addr, unsigned short count);
59extern void dma_insl(unsigned long port, void *addr, unsigned short count);
60
61/**
62 * I/O write barrier
63 *
64 * Ensure ordering of I/O space writes. This will make sure that writes
65 * following the barrier will arrive after all previous writes.
66 */
67#define mmiowb() do { SSYNC(); wmb(); } while (0)
68
69#include <asm-generic/io.h>
70
71#endif
72