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nexedi
linux
Commits
ac8173fa
Commit
ac8173fa
authored
Jan 10, 2003
by
Dave Jones
Committed by
Dave Jones
Jan 10, 2003
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Plain Diff
[WATCHDOG] wdt nowayout changes from 2.4
parent
685c21cc
Changes
1
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Side-by-side
Showing
1 changed file
with
24 additions
and
7 deletions
+24
-7
drivers/char/watchdog/wdt.c
drivers/char/watchdog/wdt.c
+24
-7
No files found.
drivers/char/watchdog/wdt.c
View file @
ac8173fa
...
@@ -52,6 +52,7 @@
...
@@ -52,6 +52,7 @@
#include <asm/system.h>
#include <asm/system.h>
static
unsigned
long
wdt_is_open
;
static
unsigned
long
wdt_is_open
;
static
int
expect_close
;
/*
/*
* You must set these - there is no sane way to probe for this board.
* You must set these - there is no sane way to probe for this board.
...
@@ -258,8 +259,21 @@ static ssize_t wdt_write(struct file *file, const char *buf, size_t count, loff_
...
@@ -258,8 +259,21 @@ static ssize_t wdt_write(struct file *file, const char *buf, size_t count, loff_
if
(
ppos
!=
&
file
->
f_pos
)
if
(
ppos
!=
&
file
->
f_pos
)
return
-
ESPIPE
;
return
-
ESPIPE
;
if
(
count
)
if
(
count
)
{
{
if
(
!
nowayout
)
{
size_t
i
;
/* In case it was set long ago */
expect_close
=
0
;
for
(
i
=
0
;
i
!=
count
;
i
++
)
{
char
c
;
if
(
get_user
(
c
,
buf
+
i
))
return
-
EFAULT
;
if
(
c
==
'V'
)
expect_close
=
1
;
}
}
wdt_ping
();
wdt_ping
();
return
1
;
return
1
;
}
}
...
@@ -317,10 +331,11 @@ static int wdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
...
@@ -317,10 +331,11 @@ static int wdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
{
{
static
struct
watchdog_info
ident
=
static
struct
watchdog_info
ident
=
{
{
WDIOF_OVERHEAT
|
WDIOF_POWERUNDER
|
WDIOF_POWEROVER
.
options
=
WDIOF_OVERHEAT
|
WDIOF_POWERUNDER
|
WDIOF_POWEROVER
|
WDIOF_EXTERN1
|
WDIOF_EXTERN2
|
WDIOF_FANFAULT
,
|
WDIOF_EXTERN1
|
WDIOF_EXTERN2
|
WDIOF_FANFAULT
1
,
|
WDIOF_SETTIMEOUT
|
WDIOF_MAGICCLOSE
,
"WDT500/501"
.
firmware_version
=
1
,
.
identity
=
"WDT500/501"
};
};
ident
.
options
&=
WDT_OPTION_MASK
;
/* Mask down to the card we have */
ident
.
options
&=
WDT_OPTION_MASK
;
/* Mask down to the card we have */
...
@@ -399,9 +414,11 @@ static int wdt_release(struct inode *inode, struct file *file)
...
@@ -399,9 +414,11 @@ static int wdt_release(struct inode *inode, struct file *file)
{
{
if
(
minor
(
inode
->
i_rdev
)
==
WATCHDOG_MINOR
)
if
(
minor
(
inode
->
i_rdev
)
==
WATCHDOG_MINOR
)
{
{
if
(
!
nowayout
)
{
if
(
expect_close
)
{
inb_p
(
WDT_DC
);
/* Disable counters */
inb_p
(
WDT_DC
);
/* Disable counters */
wdt_ctr_load
(
2
,
0
);
/* 0 length reset pulses now */
wdt_ctr_load
(
2
,
0
);
/* 0 length reset pulses now */
}
else
{
printk
(
KERN_CRIT
"wdt: WDT device closed unexpectedly. WDT will not stop!
\n
"
);
}
}
clear_bit
(
0
,
&
wdt_is_open
);
clear_bit
(
0
,
&
wdt_is_open
);
}
}
...
...
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