summaryrefslogtreecommitdiffstats
path: root/include/asm-v850/io.h
blob: bb5efd1b4b7d09a4782df938a73d6a4f10a4ba89 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
/*
 * include/asm-v850/io.h -- Misc I/O operations
 *
 *  Copyright (C) 2001,02,03,04  NEC Electronics Corporation
 *  Copyright (C) 2001,02,03,04  Miles Bader <miles@gnu.org>
 *
 * This file is subject to the terms and conditions of the GNU General
 * Public License.  See the file COPYING in the main directory of this
 * archive for more details.
 *
 * Written by Miles Bader <miles@gnu.org>
 */

#ifndef __V850_IO_H__
#define __V850_IO_H__

#define IO_SPACE_LIMIT 0xFFFFFFFF

#define readb(addr) \
  ({ unsigned char __v = (*(volatile unsigned char *) (addr)); __v; })
#define readw(addr) \
  ({ unsigned short __v = (*(volatile unsigned short *) (addr)); __v; })
#define readl(addr) \
  ({ unsigned long __v = (*(volatile unsigned long *) (addr)); __v; })

#define readb_relaxed(a) readb(a)
#define readw_relaxed(a) readw(a)
#define readl_relaxed(a) readl(a)

#define writeb(b, addr) \
  (void)((*(volatile unsigned char *) (addr)) = (b))
#define writew(b, addr) \
  (void)((*(volatile unsigned short *) (addr)) = (b))
#define writel(b, addr) \
  (void)((*(volatile unsigned int *) (addr)) = (b))

#define __raw_readb readb
#define __raw_readw readw
#define __raw_readl readl
#define __raw_writeb writeb
#define __raw_writew writew
#define __raw_writel writel

#define inb(addr)	readb (addr)
#define inw(addr)	readw (addr)
#define inl(addr)	readl (addr)
#define outb(x, addr)	((void) writeb (x, addr))
#define outw(x, addr)	((void) writew (x, addr))
#define outl(x, addr)	((void) writel (x, addr))

#define inb_p(port)		inb((port))
#define outb_p(val, port)	outb((val), (port))
#define inw_p(port)		inw((port))
#define outw_p(val, port)	outw((val), (port))
#define inl_p(port)		inl((port))
#define outl_p(val, port)	outl((val), (port))

static inline void insb (unsigned long port, void *dst, unsigned long count)
{
	unsigned char *p = dst;
	while (count--)
		*p++ = inb (port);
}
static inline void insw (unsigned long port, void *dst, unsigned long count)
{
	unsigned short *p = dst;
	while (count--)
		*p++ = inw (port);
}
static inline void insl (unsigned long port, void *dst, unsigned long count)
{
	unsigned long *p = dst;
	while (count--)
		*p++ = inl (port);
}

static inline void
outsb (unsigned long port, const void *src, unsigned long count)
{
	const unsigned char *p = src;
	while (count--)
		outb (*p++, port);
}
static inline void
outsw (unsigned long port, const void *src, unsigned long count)
{
	const unsigned short *p = src;
	while (count--)
		outw (*p++, port);
}
static inline void
outsl (unsigned long port, const void *src, unsigned long count)
{
	const unsigned long *p = src;
	while (count--)
		outl (*p++, port);
}

#define iounmap(addr)				((void)0)
#define ioremap(physaddr, size)			(physaddr)
#define ioremap_nocache(physaddr, size)		(physaddr)
#define ioremap_writethrough(physaddr, size)	(physaddr)
#define ioremap_fullcache(physaddr, size)	(physaddr)

#define mmiowb()

#define page_to_phys(page)      ((page - mem_map) << PAGE_SHIFT)
#if 0
/* This is really stupid; don't define it.  */
#define page_to_bus(page)       page_to_phys (page)
#endif

/* Conversion between virtual and physical mappings.  */
#define mm_ptov(addr)		((void *)__phys_to_virt (addr))
#define mm_vtop(addr)		((unsigned long)__virt_to_phys (addr))
#define phys_to_virt(addr)	((void *)__phys_to_virt (addr))
#define virt_to_phys(addr)	((unsigned long)__virt_to_phys (addr))

#define memcpy_fromio(dst, src, len) memcpy (dst, (void *)src, len)
#define memcpy_toio(dst, src, len) memcpy ((void *)dst, src, len)

/*
 * Convert a physical pointer to a virtual kernel pointer for /dev/mem
 * access
 */
#define xlate_dev_mem_ptr(p)	__va(p)

/*
 * Convert a virtual cached pointer to an uncached pointer
 */
#define xlate_dev_kmem_ptr(p)	p

#endif /* __V850_IO_H__ */