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authorDale Farnsworth <dale@farnsworth.org>2007-07-24 11:16:29 -0700
committerWim Van Sebroeck <wim@iguana.be>2007-07-24 21:16:15 +0000
commit85d57238d2ff9d95892dd1f266b85d2359d48dcc (patch)
treec1141dfe2a22d3b354296acca2ed201b4543955e /drivers/char
parent94796f908788b3ea2b6e60e5272f4e26cea3fc22 (diff)
[WATCHDOG] mv64x60_wdt: Add WDIOC_SETOPTIONS ioctl support
Allow the watchdog timer to be enabled or disabled via the WDIOC_SETOPTIONS ioctl. Signed-off-by: Dale Farnsworth <dale@farnsworth.org> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/watchdog/mv64x60_wdt.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/char/watchdog/mv64x60_wdt.c b/drivers/char/watchdog/mv64x60_wdt.c
index e990e3af8be..7b481277638 100644
--- a/drivers/char/watchdog/mv64x60_wdt.c
+++ b/drivers/char/watchdog/mv64x60_wdt.c
@@ -132,6 +132,7 @@ static int mv64x60_wdt_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
int timeout;
+ int options;
void __user *argp = (void __user *)arg;
static struct watchdog_info info = {
.options = WDIOF_SETTIMEOUT |
@@ -157,7 +158,15 @@ static int mv64x60_wdt_ioctl(struct inode *inode, struct file *file,
return -EOPNOTSUPP;
case WDIOC_SETOPTIONS:
- return -EOPNOTSUPP;
+ if (get_user(options, (int __user *)argp))
+ return -EFAULT;
+
+ if (options & WDIOS_DISABLECARD)
+ mv64x60_wdt_handler_disable();
+
+ if (options & WDIOS_ENABLECARD)
+ mv64x60_wdt_handler_enable();
+ break;
case WDIOC_KEEPALIVE:
mv64x60_wdt_service();