mv watchdog tree under drivers

move watchdog tree from drivers/char/watchdog to drivers/watchdog.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

1 files changed, 0 insertions, 310 deletions

diff --git a/drivers/char/watchdog/softdog.c b/drivers/char/watchdog/softdog.c
deleted file mode 100644
index 9c3694909243..000000000000
--- a/drivers/char/watchdog/softdog.c
+++ /dev/null
@@ -1,310 +0,0 @@
-/*
- *	SoftDog	0.07:	A Software Watchdog Device
- *
- *	(c) Copyright 1996 Alan Cox <alan@redhat.com>, All Rights Reserved.
- *				http://www.redhat.com
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License
- *	as published by the Free Software Foundation; either version
- *	2 of the License, or (at your option) any later version.
- *
- *	Neither Alan Cox nor CymruNet Ltd. admit liability nor provide
- *	warranty for any of this software. This material is provided
- *	"AS-IS" and at no charge.
- *
- *	(c) Copyright 1995    Alan Cox <alan@lxorguk.ukuu.org.uk>
- *
- *	Software only watchdog driver. Unlike its big brother the WDT501P
- *	driver this won't always recover a failed machine.
- *
- *  03/96: Angelo Haritsis <ah@doc.ic.ac.uk> :
- *	Modularised.
- *	Added soft_margin; use upon insmod to change the timer delay.
- *	NB: uses same minor as wdt (WATCHDOG_MINOR); we could use separate
- *	    minors.
- *
- *  19980911 Alan Cox
- *	Made SMP safe for 2.3.x
- *
- *  20011127 Joel Becker (jlbec@evilplan.org>
- *	Added soft_noboot; Allows testing the softdog trigger without
- *	requiring a recompile.
- *	Added WDIOC_GETTIMEOUT and WDIOC_SETTIMOUT.
- *
- *  20020530 Joel Becker <joel.becker@oracle.com>
- *  	Added Matt Domsch's nowayout module option.
- */
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/types.h>
-#include <linux/timer.h>
-#include <linux/miscdevice.h>
-#include <linux/watchdog.h>
-#include <linux/fs.h>
-#include <linux/notifier.h>
-#include <linux/reboot.h>
-#include <linux/init.h>
-#include <linux/jiffies.h>
-
-#include <asm/uaccess.h>
-
-#define PFX "SoftDog: "
-
-#define TIMER_MARGIN	60		/* Default is 60 seconds */
-static int soft_margin = TIMER_MARGIN;	/* in seconds */
-module_param(soft_margin, int, 0);
-MODULE_PARM_DESC(soft_margin, "Watchdog soft_margin in seconds. (0<soft_margin<65536, default=" __MODULE_STRING(TIMER_MARGIN) ")");
-
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
-MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
-
-#ifdef ONLY_TESTING
-static int soft_noboot = 1;
-#else
-static int soft_noboot = 0;
-#endif  /* ONLY_TESTING */
-
-module_param(soft_noboot, int, 0);
-MODULE_PARM_DESC(soft_noboot, "Softdog action, set to 1 to ignore reboots, 0 to reboot (default depends on ONLY_TESTING)");
-
-/*
- *	Our timer
- */
-
-static void watchdog_fire(unsigned long);
-
-static struct timer_list watchdog_ticktock =
-		TIMER_INITIALIZER(watchdog_fire, 0, 0);
-static unsigned long driver_open, orphan_timer;
-static char expect_close;
-
-
-/*
- *	If the timer expires..
- */
-
-static void watchdog_fire(unsigned long data)
-{
-	if (test_and_clear_bit(0, &orphan_timer))
-		module_put(THIS_MODULE);
-
-	if (soft_noboot)
-		printk(KERN_CRIT PFX "Triggered - Reboot ignored.\n");
-	else
-	{
-		printk(KERN_CRIT PFX "Initiating system reboot.\n");
-		emergency_restart();
-		printk(KERN_CRIT PFX "Reboot didn't ?????\n");
-	}
-}
-
-/*
- *	Softdog operations
- */
-
-static int softdog_keepalive(void)
-{
-	mod_timer(&watchdog_ticktock, jiffies+(soft_margin*HZ));
-	return 0;
-}
-
-static int softdog_stop(void)
-{
-	del_timer(&watchdog_ticktock);
-	return 0;
-}
-
-static int softdog_set_heartbeat(int t)
-{
-	if ((t < 0x0001) || (t > 0xFFFF))
-		return -EINVAL;
-
-	soft_margin = t;
-	return 0;
-}
-
-/*
- *	/dev/watchdog handling
- */
-
-static int softdog_open(struct inode *inode, struct file *file)
-{
-	if (test_and_set_bit(0, &driver_open))
-		return -EBUSY;
-	if (!test_and_clear_bit(0, &orphan_timer))
-		__module_get(THIS_MODULE);
-	/*
-	 *	Activate timer
-	 */
-	softdog_keepalive();
-	return nonseekable_open(inode, file);
-}
-
-static int softdog_release(struct inode *inode, struct file *file)
-{
-	/*
-	 *	Shut off the timer.
-	 * 	Lock it in if it's a module and we set nowayout
-	 */
-	if (expect_close == 42) {
-		softdog_stop();
-		module_put(THIS_MODULE);
-	} else {
-		printk(KERN_CRIT PFX "Unexpected close, not stopping watchdog!\n");
-		set_bit(0, &orphan_timer);
-		softdog_keepalive();
-	}
-	clear_bit(0, &driver_open);
-	expect_close = 0;
-	return 0;
-}
-
-static ssize_t softdog_write(struct file *file, const char __user *data, size_t len, loff_t *ppos)
-{
-	/*
-	 *	Refresh the timer.
-	 */
-	if(len) {
-		if (!nowayout) {
-			size_t i;
-
-			/* In case it was set long ago */
-			expect_close = 0;
-
-			for (i = 0; i != len; i++) {
-				char c;
-
-				if (get_user(c, data + i))
-					return -EFAULT;
-				if (c == 'V')
-					expect_close = 42;
-			}
-		}
-		softdog_keepalive();
-	}
-	return len;
-}
-
-static int softdog_ioctl(struct inode *inode, struct file *file,
-	unsigned int cmd, unsigned long arg)
-{
-	void __user *argp = (void __user *)arg;
-	int __user *p = argp;
-	int new_margin;
-	static struct watchdog_info ident = {
-		.options =		WDIOF_SETTIMEOUT |
-					WDIOF_KEEPALIVEPING |
-					WDIOF_MAGICCLOSE,
-		.firmware_version =	0,
-		.identity =		"Software Watchdog",
-	};
-	switch (cmd) {
-		default:
-			return -ENOTTY;
-		case WDIOC_GETSUPPORT:
-			return copy_to_user(argp, &ident,
-				sizeof(ident)) ? -EFAULT : 0;
-		case WDIOC_GETSTATUS:
-		case WDIOC_GETBOOTSTATUS:
-			return put_user(0, p);
-		case WDIOC_KEEPALIVE:
-			softdog_keepalive();
-			return 0;
-		case WDIOC_SETTIMEOUT:
-			if (get_user(new_margin, p))
-				return -EFAULT;
-			if (softdog_set_heartbeat(new_margin))
-				return -EINVAL;
-			softdog_keepalive();
-			/* Fall */
-		case WDIOC_GETTIMEOUT:
-			return put_user(soft_margin, p);
-	}
-}
-
-/*
- *	Notifier for system down
- */
-
-static int softdog_notify_sys(struct notifier_block *this, unsigned long code,
-	void *unused)
-{
-	if(code==SYS_DOWN || code==SYS_HALT) {
-		/* Turn the WDT off */
-		softdog_stop();
-	}
-	return NOTIFY_DONE;
-}
-
-/*
- *	Kernel Interfaces
- */
-
-static const struct file_operations softdog_fops = {
-	.owner		= THIS_MODULE,
-	.llseek		= no_llseek,
-	.write		= softdog_write,
-	.ioctl		= softdog_ioctl,
-	.open		= softdog_open,
-	.release	= softdog_release,
-};
-
-static struct miscdevice softdog_miscdev = {
-	.minor		= WATCHDOG_MINOR,
-	.name		= "watchdog",
-	.fops		= &softdog_fops,
-};
-
-static struct notifier_block softdog_notifier = {
-	.notifier_call	= softdog_notify_sys,
-};
-
-static char banner[] __initdata = KERN_INFO "Software Watchdog Timer: 0.07 initialized. soft_noboot=%d soft_margin=%d sec (nowayout= %d)\n";
-
-static int __init watchdog_init(void)
-{
-	int ret;
-
-	/* Check that the soft_margin value is within it's range ; if not reset to the default */
-	if (softdog_set_heartbeat(soft_margin)) {
-		softdog_set_heartbeat(TIMER_MARGIN);
-		printk(KERN_INFO PFX "soft_margin value must be 0<soft_margin<65536, using %d\n",
-			TIMER_MARGIN);
-	}
-
-	ret = register_reboot_notifier(&softdog_notifier);
-	if (ret) {
-		printk (KERN_ERR PFX "cannot register reboot notifier (err=%d)\n",
-			ret);
-		return ret;
-	}
-
-	ret = misc_register(&softdog_miscdev);
-	if (ret) {
-		printk (KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
-			WATCHDOG_MINOR, ret);
-		unregister_reboot_notifier(&softdog_notifier);
-		return ret;
-	}
-
-	printk(banner, soft_noboot, soft_margin, nowayout);
-
-	return 0;
-}
-
-static void __exit watchdog_exit(void)
-{
-	misc_deregister(&softdog_miscdev);
-	unregister_reboot_notifier(&softdog_notifier);
-}
-
-module_init(watchdog_init);
-module_exit(watchdog_exit);
-
-MODULE_AUTHOR("Alan Cox");
-MODULE_DESCRIPTION("Software Watchdog Device Driver");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);