X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=drivers%2Fchar%2Fwatchdog%2Fpcwd_usb.c;h=92bf8c1a0f0df50b93c84f034750222de2b64d4f;hb=9262e9149f346a5443300f8c451b8e7631e81a42;hp=3fdfda9324fae46a3429f3191354ee4ffec4c2cf;hpb=875999c5539999f61a45620aae0c3e5fb1d2b035;p=powerpc.git

diff --git a/drivers/char/watchdog/pcwd_usb.c b/drivers/char/watchdog/pcwd_usb.c
index 3fdfda9324..92bf8c1a0f 100644
--- a/drivers/char/watchdog/pcwd_usb.c
+++ b/drivers/char/watchdog/pcwd_usb.c
@@ -24,7 +24,6 @@
  *	http://www.berkprod.com/ or http://www.pcwatchdog.com/
  */
 
-#include <linux/config.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/init.h>
@@ -317,6 +316,19 @@ static int usb_pcwd_get_temperature(struct usb_pcwd_private *usb_pcwd, int *temp
 	return 0;
 }
 
+static int usb_pcwd_get_timeleft(struct usb_pcwd_private *usb_pcwd, int *time_left)
+{
+	unsigned char msb, lsb;
+
+	/* Read the time that's left before rebooting */
+	/* Note: if the board is not yet armed then we will read 0xFFFF */
+	usb_pcwd_send_command(usb_pcwd, CMD_READ_WATCHDOG_TIMEOUT, &msb, &lsb);
+
+	*time_left = (msb << 8) + lsb;
+
+	return 0;
+}
+
 /*
  *	/dev/watchdog handling
  */
@@ -422,6 +434,16 @@ static int usb_pcwd_ioctl(struct inode *inode, struct file *file,
 		case WDIOC_GETTIMEOUT:
 			return put_user(heartbeat, p);
 
+		case WDIOC_GETTIMELEFT:
+		{
+			int time_left;
+
+			if (usb_pcwd_get_timeleft(usb_pcwd_device, &time_left))
+				return -EFAULT;
+
+			return put_user(time_left, p);
+		}
+
 		default:
 			return -ENOIOCTLCMD;
 	}