static long wb_smsc_wdt_ioctl(struct file *file,
					unsigned int cmd, unsigned long arg)
{
	int new_timeout;

	union {
		struct watchdog_info __user *ident;
		int __user *i;
	} uarg;

	static const struct watchdog_info ident = {
		.options =		WDIOF_KEEPALIVEPING |
					WDIOF_SETTIMEOUT |
					WDIOF_MAGICCLOSE,
		.firmware_version =	0,
		.identity =		"SMsC 37B787 Watchdog",
	};

	uarg.i = (int __user *)arg;

	switch (cmd) {
	case WDIOC_GETSUPPORT:
		return copy_to_user(uarg.ident, &ident, sizeof(ident))
								? -EFAULT : 0;
	case WDIOC_GETSTATUS:
		return put_user(wb_smsc_wdt_status(), uarg.i);
	case WDIOC_GETBOOTSTATUS:
		return put_user(0, uarg.i);
	case WDIOC_SETOPTIONS:
	{
		int options, retval = -EINVAL;

		if (get_user(options, uarg.i))
			return -EFAULT;

		if (options & WDIOS_DISABLECARD) {
			wb_smsc_wdt_disable();
			retval = 0;
		}
		if (options & WDIOS_ENABLECARD) {
			wb_smsc_wdt_enable();
			retval = 0;
		}
		return retval;
	}
	case WDIOC_KEEPALIVE:
		wb_smsc_wdt_reset_timer();
		return 0;
	case WDIOC_SETTIMEOUT:
		if (get_user(new_timeout, uarg.i))
			return -EFAULT;
		
		if (unit == UNIT_MINUTE)
			new_timeout /= 60;
		if (new_timeout < 0 || new_timeout > MAX_TIMEOUT)
			return -EINVAL;
		timeout = new_timeout;
		wb_smsc_wdt_set_timeout(timeout);
		
	case WDIOC_GETTIMEOUT:
		new_timeout = timeout;
		if (unit == UNIT_MINUTE)
			new_timeout *= 60;
		return put_user(new_timeout, uarg.i);
	default:
		return -ENOTTY;
	}
}


static int wb_smsc_wdt_notify_sys(struct notifier_block *this,
					unsigned long code, void *unused)
{
	if (code == SYS_DOWN || code == SYS_HALT) {
		
		timeout = 0;
		wb_smsc_wdt_disable();
	}
	return NOTIFY_DONE;
}


static const struct file_operations wb_smsc_wdt_fops = {
	.owner	  = THIS_MODULE,
	.llseek		= no_llseek,
	.write		= wb_smsc_wdt_write,
	.unlocked_ioctl	= wb_smsc_wdt_ioctl,
	.open		= wb_smsc_wdt_open,
	.release	= wb_smsc_wdt_release,
};

static struct notifier_block wb_smsc_wdt_notifier = {
	.notifier_call  = wb_smsc_wdt_notify_sys,
};

static struct miscdevice wb_smsc_wdt_miscdev = {
	.minor		= WATCHDOG_MINOR,
	.name		= "watchdog",
	.fops		= &wb_smsc_wdt_fops,
};



static int __init wb_smsc_wdt_init(void)
{
	int ret;

	pr_info("SMsC 37B787 watchdog component driver "
		VERSION " initialising...\n");

	if (!request_region(IOPORT, IOPORT_SIZE, "SMsC 37B787 watchdog")) {
		pr_err("Unable to register IO port %#x\n", IOPORT);
		ret = -EBUSY;
		goto out_pnp;
	}

	
	if (timeout > MAX_TIMEOUT)
		timeout = MAX_TIMEOUT;

	
	wb_smsc_wdt_initialize();

	ret = register_reboot_notifier(&wb_smsc_wdt_notifier);
	if (ret) {
		pr_err("Unable to register reboot notifier err = %d\n", ret);
		goto out_io;
	}

	ret = misc_register(&wb_smsc_wdt_miscdev);
	if (ret) {
		pr_err("Unable to register miscdev on minor %d\n",
		       WATCHDOG_MINOR);
		goto out_rbt;
	}

	
	pr_info("Timeout set to %d %s\n",
		timeout, (unit == UNIT_SECOND) ? "second(s)" : "minute(s)");
	pr_info("Watchdog initialized and sleeping (nowayout=%d)...\n",
		nowayout);
out_clean:
	return ret;

out_rbt:
	unregister_reboot_notifier(&wb_smsc_wdt_notifier);

out_io:
	release_region(IOPORT, IOPORT_SIZE);

out_pnp:
	goto out_clean;
}


static void __exit wb_smsc_wdt_exit(void)
{
	
	if (!nowayout) {
		wb_smsc_wdt_shutdown();
		pr_info("Watchdog disabled\n");
	}

	misc_deregister(&wb_smsc_wdt_miscdev);
	unregister_reboot_notifier(&wb_smsc_wdt_notifier);
	release_region(IOPORT, IOPORT_SIZE);

	pr_info("SMsC 37B787 watchdog component driver removed\n");
}

module_init(wb_smsc_wdt_init);
module_exit(wb_smsc_wdt_exit);

MODULE_AUTHOR("Sven Anders <*****@*****.**>");
MODULE_DESCRIPTION("Driver for SMsC 37B787 watchdog component (Version "
								VERSION ")");
MODULE_LICENSE("GPL");

MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);

#ifdef SMSC_SUPPORT_MINUTES
module_param(unit, int, 0);
MODULE_PARM_DESC(unit,
		"set unit to use, 0=seconds or 1=minutes, default is 0");
#endif

module_param(timeout, int, 0);
MODULE_PARM_DESC(timeout, "range is 1-255 units, default is 60");

module_param(nowayout, bool, 0);
MODULE_PARM_DESC(nowayout,
		"Watchdog cannot be stopped once started (default="
				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
static long wb_smsc_wdt_ioctl(struct file *file,
					unsigned int cmd, unsigned long arg)
{
	int new_timeout;

	union {
		struct watchdog_info __user *ident;
		int __user *i;
	} uarg;

	static const struct watchdog_info ident = {
<<<<<<< HEAD
		.options =		WDIOF_KEEPALIVEPING |
					WDIOF_SETTIMEOUT |
					WDIOF_MAGICCLOSE,
		.firmware_version =	0,
		.identity =		"SMsC 37B787 Watchdog",
=======
		.options = 		WDIOF_KEEPALIVEPING |
					WDIOF_SETTIMEOUT |
					WDIOF_MAGICCLOSE,
		.firmware_version =	0,
		.identity = 		"SMsC 37B787 Watchdog",
>>>>>>> 296c66da8a02d52243f45b80521febece5ed498a
	};

	uarg.i = (int __user *)arg;

	switch (cmd) {
	case WDIOC_GETSUPPORT:
		return copy_to_user(uarg.ident, &ident, sizeof(ident))
								? -EFAULT : 0;
	case WDIOC_GETSTATUS:
		return put_user(wb_smsc_wdt_status(), uarg.i);
	case WDIOC_GETBOOTSTATUS:
		return put_user(0, uarg.i);
	case WDIOC_SETOPTIONS:
	{
		int options, retval = -EINVAL;

		if (get_user(options, uarg.i))
			return -EFAULT;

		if (options & WDIOS_DISABLECARD) {
			wb_smsc_wdt_disable();
			retval = 0;
		}
		if (options & WDIOS_ENABLECARD) {
			wb_smsc_wdt_enable();
			retval = 0;
		}
		return retval;
	}
	case WDIOC_KEEPALIVE:
		wb_smsc_wdt_reset_timer();
		return 0;
	case WDIOC_SETTIMEOUT:
		if (get_user(new_timeout, uarg.i))
			return -EFAULT;
		/* the API states this is given in secs */
		if (unit == UNIT_MINUTE)
			new_timeout /= 60;
		if (new_timeout < 0 || new_timeout > MAX_TIMEOUT)
			return -EINVAL;
		timeout = new_timeout;
		wb_smsc_wdt_set_timeout(timeout);
		/* fall through and return the new timeout... */
	case WDIOC_GETTIMEOUT:
		new_timeout = timeout;
		if (unit == UNIT_MINUTE)
			new_timeout *= 60;
		return put_user(new_timeout, uarg.i);
	default:
		return -ENOTTY;
	}
}