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
|
/*
* Memory mapped access to ISA IO space.
*
* Copyright (c) 2006 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "hw.h"
#include "isa.h"
static void isa_mmio_writeb (void *opaque, target_phys_addr_t addr,
uint32_t val)
{
cpu_outb(NULL, addr & IOPORTS_MASK, val);
}
static void isa_mmio_writew (void *opaque, target_phys_addr_t addr,
uint32_t val)
{
#ifdef TARGET_WORDS_BIGENDIAN
val = bswap16(val);
#endif
cpu_outw(NULL, addr & IOPORTS_MASK, val);
}
static void isa_mmio_writel (void *opaque, target_phys_addr_t addr,
uint32_t val)
{
#ifdef TARGET_WORDS_BIGENDIAN
val = bswap32(val);
#endif
cpu_outl(NULL, addr & IOPORTS_MASK, val);
}
static uint32_t isa_mmio_readb (void *opaque, target_phys_addr_t addr)
{
uint32_t val;
val = cpu_inb(NULL, addr & IOPORTS_MASK);
return val;
}
static uint32_t isa_mmio_readw (void *opaque, target_phys_addr_t addr)
{
uint32_t val;
val = cpu_inw(NULL, addr & IOPORTS_MASK);
#ifdef TARGET_WORDS_BIGENDIAN
val = bswap16(val);
#endif
return val;
}
static uint32_t isa_mmio_readl (void *opaque, target_phys_addr_t addr)
{
uint32_t val;
val = cpu_inl(NULL, addr & IOPORTS_MASK);
#ifdef TARGET_WORDS_BIGENDIAN
val = bswap32(val);
#endif
return val;
}
static CPUWriteMemoryFunc * const isa_mmio_write[] = {
&isa_mmio_writeb,
&isa_mmio_writew,
&isa_mmio_writel,
};
static CPUReadMemoryFunc * const isa_mmio_read[] = {
&isa_mmio_readb,
&isa_mmio_readw,
&isa_mmio_readl,
};
static int isa_mmio_iomemtype = 0;
void isa_mmio_init(target_phys_addr_t base, target_phys_addr_t size)
{
if (!isa_mmio_iomemtype) {
isa_mmio_iomemtype = cpu_register_io_memory(isa_mmio_read,
isa_mmio_write, NULL);
}
cpu_register_physical_memory(base, size, isa_mmio_iomemtype);
}
|
