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nexedi
linux
Commits
17445dc8
Commit
17445dc8
authored
Nov 22, 2002
by
James Bottomley
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add mca-driver handling
Tidies up the handling of MCA drivers
parent
30e8f697
Changes
3
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3 changed files
with
16 additions
and
36 deletions
+16
-36
drivers/mca/Makefile
drivers/mca/Makefile
+2
-2
drivers/mca/mca-bus.c
drivers/mca/mca-bus.c
+6
-28
include/linux/mca.h
include/linux/mca.h
+8
-6
No files found.
drivers/mca/Makefile
View file @
17445dc8
# Makefile for the Linux MCA bus support
obj-y
:=
mca-bus.o mca-device.o mca-legacy.o
obj-y
:=
mca-bus.o mca-device.o mca-
driver.o mca-
legacy.o
obj-$(CONFIG_PROC_FS)
+=
mca-proc.o
export-objs
:=
mca-bus.o mca-legacy.o mca-proc.o
export-objs
:=
mca-bus.o mca-legacy.o mca-proc.o
mca-driver.o
include
$(TOPDIR)/Rules.make
drivers/mca/mca-bus.c
View file @
17445dc8
...
...
@@ -30,8 +30,6 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/list.h>
#include <asm/io.h>
/* Very few machines have more than one MCA bus. However, there are
* those that do (Voyager 35xx/5xxx), so we do it this way for future
...
...
@@ -50,15 +48,16 @@ static int mca_bus_match (struct device *dev, struct device_driver *drv)
struct
mca_device
*
mca_dev
=
to_mca_device
(
dev
);
struct
mca_driver
*
mca_drv
=
to_mca_driver
(
drv
);
const
short
*
mca_ids
=
mca_drv
->
id_table
;
int
i
;
if
(
!
mca_ids
)
return
0
;
while
(
*
mca_ids
)
{
if
(
*
mca_ids
==
mca_dev
->
pos_id
)
for
(
i
=
0
;
mca_ids
[
i
];
i
++
)
{
if
(
mca_ids
[
i
]
==
mca_dev
->
pos_id
)
{
mca_dev
->
index
=
i
;
return
1
;
mca_ids
++
;
}
}
return
0
;
...
...
@@ -70,24 +69,6 @@ struct bus_type mca_bus_type = {
};
EXPORT_SYMBOL
(
mca_bus_type
);
int
mca_driver_register
(
struct
mca_driver
*
mca_drv
)
{
int
r
;
mca_drv
->
driver
.
bus
=
&
mca_bus_type
;
if
((
r
=
driver_register
(
&
mca_drv
->
driver
))
<
0
)
return
r
;
return
1
;
}
void
mca_driver_unregister
(
struct
mca_driver
*
mca_drv
)
{
bus_remove_driver
(
&
mca_drv
->
driver
);
driver_unregister
(
&
mca_drv
->
driver
);
}
static
ssize_t
mca_show_pos_id
(
struct
device
*
dev
,
char
*
buf
,
size_t
count
,
loff_t
off
)
{
...
...
@@ -135,7 +116,7 @@ static ssize_t mca_show_pos(struct device *dev, char *buf, size_t count,
static
DEVICE_ATTR
(
id
,
S_IRUGO
,
mca_show_pos_id
,
NULL
);
static
DEVICE_ATTR
(
pos
,
S_IRUGO
,
mca_show_pos
,
NULL
);
int
__init
mca_register_device
(
int
bus
,
struct
mca_device
*
mca_dev
)
int
__init
mca_register_device
(
int
bus
,
struct
mca_device
*
mca_dev
)
{
struct
mca_bus
*
mca_bus
=
mca_root_busses
[
bus
];
...
...
@@ -184,6 +165,3 @@ int __init mca_system_init (void)
{
return
bus_register
(
&
mca_bus_type
);
}
EXPORT_SYMBOL
(
mca_driver_register
);
EXPORT_SYMBOL
(
mca_driver_unregister
);
include/linux/mca.h
View file @
17445dc8
...
...
@@ -52,6 +52,9 @@ struct mca_device {
int
pos_id
;
int
slot
;
/* index into id_table, set by the bus match routine */
int
index
;
/* is there a driver installed? 0 - No, 1 - Yes */
int
driver_loaded
;
/* POS registers */
...
...
@@ -100,8 +103,6 @@ struct mca_driver {
#define to_mca_driver(mdriver) container_of(mdriver, struct mca_driver, driver)
/* Ongoing supported API functions */
extern
int
mca_driver_register
(
struct
mca_driver
*
);
extern
int
mca_register_device
(
int
bus
,
struct
mca_device
*
);
extern
struct
mca_device
*
mca_find_device_by_slot
(
int
slot
);
extern
int
mca_system_init
(
void
);
extern
struct
mca_bus
*
mca_attach_bus
(
int
);
...
...
@@ -121,10 +122,11 @@ extern enum MCA_AdapterStatus mca_device_status(struct mca_device *mca_dev);
extern
struct
bus_type
mca_bus_type
;
static
inline
void
mca_register_driver
(
struct
mca_driver
*
drv
)
{
driver_register
(
&
drv
->
driver
);
}
extern
int
mca_register_driver
(
struct
mca_driver
*
drv
);
extern
void
mca_unregister_driver
(
struct
mca_driver
*
drv
);
/* WARNING: only called by the boot time device setup */
extern
int
mca_register_device
(
int
bus
,
struct
mca_device
*
mca_dev
);
/* for now, include the legacy API */
#include <linux/mca-legacy.h>
...
...
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