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93872ba2
编写于
6月 30, 2006
作者:
D
David S. Miller
浏览文件
操作
浏览文件
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电子邮件补丁
差异文件
[SERIAL] sunhv: Convert to of_driver layer.
Signed-off-by:
N
David S. Miller
<
davem@davemloft.net
>
上级
1815aed5
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
71 addition
and
95 deletion
+71
-95
drivers/serial/sunhv.c
drivers/serial/sunhv.c
+71
-95
未找到文件。
drivers/serial/sunhv.c
浏览文件 @
93872ba2
...
@@ -20,8 +20,8 @@
...
@@ -20,8 +20,8 @@
#include <asm/hypervisor.h>
#include <asm/hypervisor.h>
#include <asm/spitfire.h>
#include <asm/spitfire.h>
#include <asm/
vdev
.h>
#include <asm/
prom
.h>
#include <asm/o
plib
.h>
#include <asm/o
f_device
.h>
#include <asm/irq.h>
#include <asm/irq.h>
#if defined(CONFIG_MAGIC_SYSRQ)
#if defined(CONFIG_MAGIC_SYSRQ)
...
@@ -407,144 +407,120 @@ static inline struct console *SUNHV_CONSOLE(void)
...
@@ -407,144 +407,120 @@ static inline struct console *SUNHV_CONSOLE(void)
return
&
sunhv_console
;
return
&
sunhv_console
;
}
}
static
int
__init
hv_console_compatible
(
char
*
buf
,
int
len
)
static
int
__devinit
hv_probe
(
struct
of_device
*
op
,
const
struct
of_device_id
*
match
)
{
while
(
len
)
{
int
this_len
;
if
(
!
strcmp
(
buf
,
"qcn"
))
return
1
;
this_len
=
strlen
(
buf
)
+
1
;
buf
+=
this_len
;
len
-=
this_len
;
}
return
0
;
}
static
unsigned
int
__init
get_interrupt
(
void
)
{
struct
device_node
*
dev_node
;
dev_node
=
sun4v_vdev_root
->
child
;
while
(
dev_node
!=
NULL
)
{
struct
property
*
prop
;
if
(
strcmp
(
dev_node
->
name
,
"console"
))
goto
next_sibling
;
prop
=
of_find_property
(
dev_node
,
"compatible"
,
NULL
);
if
(
!
prop
)
goto
next_sibling
;
if
(
hv_console_compatible
(
prop
->
value
,
prop
->
length
))
break
;
next_sibling:
dev_node
=
dev_node
->
sibling
;
}
if
(
!
dev_node
)
return
0
;
/* Ok, the this is the OBP node for the sun4v hypervisor
* console device. Decode the interrupt.
*/
return
sun4v_vdev_device_interrupt
(
dev_node
);
}
static
int
__init
sunhv_init
(
void
)
{
{
struct
uart_port
*
port
;
struct
uart_port
*
port
;
int
ret
;
int
err
;
if
(
tlb_type
!=
hypervisor
)
if
(
op
->
irqs
[
0
]
==
0xffffffff
)
return
-
ENODEV
;
return
-
ENODEV
;
port
=
k
m
alloc
(
sizeof
(
struct
uart_port
),
GFP_KERNEL
);
port
=
k
z
alloc
(
sizeof
(
struct
uart_port
),
GFP_KERNEL
);
if
(
unlikely
(
!
port
))
if
(
unlikely
(
!
port
))
return
-
ENOMEM
;
return
-
ENOMEM
;
memset
(
port
,
0
,
sizeof
(
struct
uart_port
))
;
sunhv_port
=
port
;
port
->
line
=
0
;
port
->
line
=
0
;
port
->
ops
=
&
sunhv_pops
;
port
->
ops
=
&
sunhv_pops
;
port
->
type
=
PORT_SUNHV
;
port
->
type
=
PORT_SUNHV
;
port
->
uartclk
=
(
29491200
/
16
);
/* arbitrary */
port
->
uartclk
=
(
29491200
/
16
);
/* arbitrary */
/* Set this just to make uart_configure_port() happy. */
port
->
membase
=
(
unsigned
char
__iomem
*
)
__pa
(
port
);
port
->
membase
=
(
unsigned
char
__iomem
*
)
__pa
(
port
);
port
->
irq
=
get_interrupt
();
port
->
irq
=
op
->
irqs
[
0
];
if
(
!
port
->
irq
)
{
kfree
(
port
);
port
->
dev
=
&
op
->
dev
;
return
-
ENODEV
;
}
sunhv_reg
.
minor
=
sunserial_current_minor
;
sunhv_reg
.
minor
=
sunserial_current_minor
;
sunhv_reg
.
nr
=
1
;
sunhv_reg
.
nr
=
1
;
ret
=
uart_register_driver
(
&
sunhv_reg
);
err
=
uart_register_driver
(
&
sunhv_reg
);
if
(
ret
<
0
)
{
if
(
err
)
printk
(
KERN_ERR
"SUNHV: uart_register_driver() failed %d
\n
"
,
goto
out_free_port
;
ret
);
kfree
(
port
);
return
ret
;
}
sunhv_reg
.
tty_driver
->
name_base
=
sunhv_reg
.
minor
-
64
;
sunhv_reg
.
tty_driver
->
name_base
=
sunhv_reg
.
minor
-
64
;
sunserial_current_minor
+=
1
;
sunserial_current_minor
+=
1
;
sunhv_reg
.
cons
=
SUNHV_CONSOLE
();
sunhv_reg
.
cons
=
SUNHV_CONSOLE
();
sunhv_port
=
port
;
err
=
uart_add_one_port
(
&
sunhv_reg
,
port
);
if
(
err
)
goto
out_unregister_driver
;
ret
=
uart_add_one_port
(
&
sunhv_reg
,
port
);
err
=
request_irq
(
port
->
irq
,
sunhv_interrupt
,
0
,
"hvcons"
,
port
);
if
(
ret
<
0
)
{
if
(
err
)
printk
(
KERN_ERR
"SUNHV: uart_add_one_port() failed %d
\n
"
,
ret
);
goto
out_remove_port
;
sunserial_current_minor
-=
1
;
uart_unregister_driver
(
&
sunhv_reg
);
kfree
(
port
);
sunhv_port
=
NULL
;
return
-
ENODEV
;
}
if
(
request_irq
(
port
->
irq
,
sunhv_interrupt
,
dev_set_drvdata
(
&
op
->
dev
,
port
);
SA_SHIRQ
,
"serial(sunhv)"
,
port
))
{
printk
(
KERN_ERR
"sunhv: Cannot register IRQ
\n
"
);
uart_remove_one_port
(
&
sunhv_reg
,
port
);
sunserial_current_minor
-=
1
;
uart_unregister_driver
(
&
sunhv_reg
);
kfree
(
port
);
sunhv_port
=
NULL
;
return
-
ENODEV
;
}
return
0
;
return
0
;
out_remove_port:
uart_remove_one_port
(
&
sunhv_reg
,
port
);
out_unregister_driver:
sunserial_current_minor
-=
1
;
uart_unregister_driver
(
&
sunhv_reg
);
out_free_port:
kfree
(
port
);
sunhv_port
=
NULL
;
return
err
;
}
}
static
void
__exit
sunhv_exit
(
void
)
static
int
__devexit
hv_remove
(
struct
of_device
*
dev
)
{
{
struct
uart_port
*
port
=
sunhv_port
;
struct
uart_port
*
port
=
dev_get_drvdata
(
&
dev
->
dev
);
BUG_ON
(
!
port
);
free_irq
(
port
->
irq
,
port
);
free_irq
(
port
->
irq
,
port
);
uart_remove_one_port
(
&
sunhv_reg
,
port
);
uart_remove_one_port
(
&
sunhv_reg
,
port
);
sunserial_current_minor
-=
1
;
sunserial_current_minor
-=
1
;
uart_unregister_driver
(
&
sunhv_reg
);
uart_unregister_driver
(
&
sunhv_reg
);
kfree
(
sunhv_
port
);
kfree
(
port
);
sunhv_port
=
NULL
;
sunhv_port
=
NULL
;
dev_set_drvdata
(
&
dev
->
dev
,
NULL
);
return
0
;
}
static
struct
of_device_id
hv_match
[]
=
{
{
.
name
=
"console"
,
.
compatible
=
"qcn"
,
},
{},
};
MODULE_DEVICE_TABLE
(
of
,
hv_match
);
static
struct
of_platform_driver
hv_driver
=
{
.
name
=
"hv"
,
.
match_table
=
hv_match
,
.
probe
=
hv_probe
,
.
remove
=
__devexit_p
(
hv_remove
),
};
static
int
__init
sunhv_init
(
void
)
{
if
(
tlb_type
!=
hypervisor
)
return
-
ENODEV
;
return
of_register_driver
(
&
hv_driver
,
&
of_bus_type
);
}
static
void
__exit
sunhv_exit
(
void
)
{
of_unregister_driver
(
&
hv_driver
);
}
}
module_init
(
sunhv_init
);
module_init
(
sunhv_init
);
module_exit
(
sunhv_exit
);
module_exit
(
sunhv_exit
);
MODULE_AUTHOR
(
"David S. Miller"
);
MODULE_AUTHOR
(
"David S. Miller"
);
MODULE_DESCRIPTION
(
"SUN4V Hypervisor console driver"
)
MODULE_DESCRIPTION
(
"SUN4V Hypervisor console driver"
);
MODULE_VERSION
(
"2.0"
);
MODULE_LICENSE
(
"GPL"
);
MODULE_LICENSE
(
"GPL"
);
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