linux-kernel - [PATCH 07/11] mv64x60_wdt: Add WDIOC

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Message-ID: <20070724181629.GG27445@xyzzy.farnsworth.org>
Date:	Tue, 24 Jul 2007 11:16:29 -0700
From:	"Dale Farnsworth" <dale@...nsworth.org>
To:	Wim Van Sebroeck <wim@...ana.be>, linux-kernel@...r.kernel.org
Subject: [PATCH 07/11] 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@...nsworth.org>
---
 drivers/char/watchdog/mv64x60_wdt.c |   11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

Index: linux-2.6-powerpc-wdt/drivers/char/watchdog/mv64x60_wdt.c
===================================================================
--- linux-2.6-powerpc-wdt.orig/drivers/char/watchdog/mv64x60_wdt.c	2007-07-20 19:29:15.000000000 +0000
+++ linux-2.6-powerpc-wdt/drivers/char/watchdog/mv64x60_wdt.c	2007-07-20 19:29:34.000000000 +0000
@@ -132,6 +132,7 @@ static int mv64x60_wdt_ioctl(struct inod
 			     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 inod
 		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();

-
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