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871321ac
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体验新版 GitCode,发现更多精彩内容 >>
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871321ac
编写于
11月 10, 2011
作者:
A
Avi Kivity
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
ds1225y: convert to memory API
Signed-off-by:
N
Avi Kivity
<
avi@redhat.com
>
上级
024e5bb6
变更
1
显示空白变更内容
内联
并排
Showing
1 changed file
with
14 addition
and
48 deletion
+14
-48
hw/ds1225y.c
hw/ds1225y.c
+14
-48
未找到文件。
hw/ds1225y.c
浏览文件 @
871321ac
...
...
@@ -27,13 +27,14 @@
typedef
struct
{
DeviceState
qdev
;
MemoryRegion
iomem
;
uint32_t
chip_size
;
char
*
filename
;
FILE
*
file
;
uint8_t
*
contents
;
}
NvRamState
;
static
uint
32_t
nvram_readb
(
void
*
opaque
,
target_phys_addr_t
addr
)
static
uint
64_t
nvram_read
(
void
*
opaque
,
target_phys_addr_t
addr
,
unsigned
size
)
{
NvRamState
*
s
=
opaque
;
uint32_t
val
;
...
...
@@ -43,25 +44,8 @@ static uint32_t nvram_readb (void *opaque, target_phys_addr_t addr)
return
val
;
}
static
uint32_t
nvram_readw
(
void
*
opaque
,
target_phys_addr_t
addr
)
{
uint32_t
v
;
v
=
nvram_readb
(
opaque
,
addr
);
v
|=
nvram_readb
(
opaque
,
addr
+
1
)
<<
8
;
return
v
;
}
static
uint32_t
nvram_readl
(
void
*
opaque
,
target_phys_addr_t
addr
)
{
uint32_t
v
;
v
=
nvram_readb
(
opaque
,
addr
);
v
|=
nvram_readb
(
opaque
,
addr
+
1
)
<<
8
;
v
|=
nvram_readb
(
opaque
,
addr
+
2
)
<<
16
;
v
|=
nvram_readb
(
opaque
,
addr
+
3
)
<<
24
;
return
v
;
}
static
void
nvram_writeb
(
void
*
opaque
,
target_phys_addr_t
addr
,
uint32_t
val
)
static
void
nvram_write
(
void
*
opaque
,
target_phys_addr_t
addr
,
uint64_t
val
,
unsigned
size
)
{
NvRamState
*
s
=
opaque
;
...
...
@@ -76,30 +60,14 @@ static void nvram_writeb (void *opaque, target_phys_addr_t addr, uint32_t val)
}
}
static
void
nvram_writew
(
void
*
opaque
,
target_phys_addr_t
addr
,
uint32_t
val
)
{
nvram_writeb
(
opaque
,
addr
,
val
&
0xff
);
nvram_writeb
(
opaque
,
addr
+
1
,
(
val
>>
8
)
&
0xff
);
}
static
void
nvram_writel
(
void
*
opaque
,
target_phys_addr_t
addr
,
uint32_t
val
)
{
nvram_writeb
(
opaque
,
addr
,
val
&
0xff
);
nvram_writeb
(
opaque
,
addr
+
1
,
(
val
>>
8
)
&
0xff
);
nvram_writeb
(
opaque
,
addr
+
2
,
(
val
>>
16
)
&
0xff
);
nvram_writeb
(
opaque
,
addr
+
3
,
(
val
>>
24
)
&
0xff
);
}
static
CPUReadMemoryFunc
*
const
nvram_read
[]
=
{
&
nvram_readb
,
&
nvram_readw
,
&
nvram_readl
,
};
static
CPUWriteMemoryFunc
*
const
nvram_write
[]
=
{
&
nvram_writeb
,
&
nvram_writew
,
&
nvram_writel
,
static
const
MemoryRegionOps
nvram_ops
=
{
.
read
=
nvram_read
,
.
write
=
nvram_write
,
.
impl
=
{
.
min_access_size
=
1
,
.
max_access_size
=
1
,
},
.
endianness
=
DEVICE_LITTLE_ENDIAN
,
};
static
int
nvram_post_load
(
void
*
opaque
,
int
version_id
)
...
...
@@ -146,13 +114,11 @@ static int nvram_sysbus_initfn(SysBusDevice *dev)
{
NvRamState
*
s
=
&
FROM_SYSBUS
(
SysBusNvRamState
,
dev
)
->
nvram
;
FILE
*
file
;
int
s_io
;
s
->
contents
=
g_malloc0
(
s
->
chip_size
);
s_io
=
cpu_register_io_memory
(
nvram_read
,
nvram_write
,
s
,
DEVICE_NATIVE_ENDIAN
);
sysbus_init_mmio
(
dev
,
s
->
chip_size
,
s_io
);
memory_region_init_io
(
&
s
->
iomem
,
&
nvram_ops
,
s
,
"nvram"
,
s
->
chip_size
);
sysbus_init_mmio_region
(
dev
,
&
s
->
iomem
);
/* Read current file */
file
=
fopen
(
s
->
filename
,
"rb"
);
...
...
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