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, 473 deletions

diff --git a/drivers/char/watchdog/eurotechwdt.c b/drivers/char/watchdog/eurotechwdt.c
deleted file mode 100644
index b14e9d1f164d..000000000000
--- a/drivers/char/watchdog/eurotechwdt.c
+++ /dev/null
@@ -1,473 +0,0 @@
-/*
- *	Eurotech CPU-1220/1410/1420 on board WDT driver
- *
- *	(c) Copyright 2001 Ascensit <support@ascensit.com>
- *	(c) Copyright 2001 Rodolfo Giometti <giometti@ascensit.com>
- *	(c) Copyright 2002 Rob Radez <rob@osinvestor.com>
- *
- *	Based on wdt.c.
- *	Original copyright messages:
- *
- *      (c) Copyright 1996-1997 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>*
- */
-
-/* Changelog:
- *
- * 2001 - Rodolfo Giometti
- *	Initial release
- *
- * 2002/04/25 - Rob Radez
- *	clean up #includes
- *	clean up locking
- *	make __setup param unique
- *	proper options in watchdog_info
- *	add WDIOC_GETSTATUS and WDIOC_SETOPTIONS ioctls
- *	add expect_close support
- *
- * 2002.05.30 - Joel Becker <joel.becker@oracle.com>
- * 	Added Matt Domsch's nowayout module option.
- */
-
-/*
- *	The eurotech CPU-1220/1410/1420's watchdog is a part
- *	of the on-board SUPER I/O device SMSC FDC 37B782.
- */
-
-#include <linux/interrupt.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/types.h>
-#include <linux/miscdevice.h>
-#include <linux/watchdog.h>
-#include <linux/fs.h>
-#include <linux/ioport.h>
-#include <linux/notifier.h>
-#include <linux/reboot.h>
-#include <linux/init.h>
-
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-
-static unsigned long eurwdt_is_open;
-static int eurwdt_timeout;
-static char eur_expect_close;
-
-/*
- * You must set these - there is no sane way to probe for this board.
- * You can use eurwdt=x,y to set these now.
- */
-
-static int io = 0x3f0;
-static int irq = 10;
-static char *ev = "int";
-
-#define WDT_TIMEOUT		60                /* 1 minute */
-
-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) ")");
-
-/*
- * Some symbolic names
- */
-
-#define WDT_CTRL_REG		0x30
-#define WDT_OUTPIN_CFG		0xe2
-#define WDT_EVENT_INT		0x00
-#define WDT_EVENT_REBOOT	0x08
-#define WDT_UNIT_SEL		0xf1
-#define WDT_UNIT_SECS		0x80
-#define WDT_TIMEOUT_VAL		0xf2
-#define WDT_TIMER_CFG		0xf3
-
-
-module_param(io, int, 0);
-MODULE_PARM_DESC(io, "Eurotech WDT io port (default=0x3f0)");
-module_param(irq, int, 0);
-MODULE_PARM_DESC(irq, "Eurotech WDT irq (default=10)");
-module_param(ev, charp, 0);
-MODULE_PARM_DESC(ev, "Eurotech WDT event type (default is `int')");
-
-
-/*
- * Programming support
- */
-
-static inline void eurwdt_write_reg(u8 index, u8 data)
-{
-	outb(index, io);
-	outb(data, io+1);
-}
-
-static inline void eurwdt_lock_chip(void)
-{
-	outb(0xaa, io);
-}
-
-static inline void eurwdt_unlock_chip(void)
-{
-	outb(0x55, io);
-	eurwdt_write_reg(0x07, 0x08);	/* set the logical device */
-}
-
-static inline void eurwdt_set_timeout(int timeout)
-{
-	eurwdt_write_reg(WDT_TIMEOUT_VAL, (u8) timeout);
-}
-
-static inline void eurwdt_disable_timer(void)
-{
-	eurwdt_set_timeout(0);
-}
-
-static void eurwdt_activate_timer(void)
-{
-	eurwdt_disable_timer();
-	eurwdt_write_reg(WDT_CTRL_REG, 0x01);	/* activate the WDT */
-	eurwdt_write_reg(WDT_OUTPIN_CFG, !strcmp("int", ev) ? WDT_EVENT_INT : WDT_EVENT_REBOOT);
-
-	/* Setting interrupt line */
-	if (irq == 2 || irq > 15 || irq < 0) {
-		printk(KERN_ERR ": invalid irq number\n");
-		irq = 0;	/* if invalid we disable interrupt */
-	}
-	if (irq == 0)
-		printk(KERN_INFO ": interrupt disabled\n");
-
-	eurwdt_write_reg(WDT_TIMER_CFG, irq<<4);
-
-	eurwdt_write_reg(WDT_UNIT_SEL, WDT_UNIT_SECS);	/* we use seconds */
-	eurwdt_set_timeout(0);	/* the default timeout */
-}
-
-
-/*
- * Kernel methods.
- */
-
-static irqreturn_t eurwdt_interrupt(int irq, void *dev_id)
-{
-	printk(KERN_CRIT "timeout WDT timeout\n");
-
-#ifdef ONLY_TESTING
-	printk(KERN_CRIT "Would Reboot.\n");
-#else
-	printk(KERN_CRIT "Initiating system reboot.\n");
-	emergency_restart();
-#endif
-	return IRQ_HANDLED;
-}
-
-
-/**
- * eurwdt_ping:
- *
- * Reload counter one with the watchdog timeout.
- */
-
-static void eurwdt_ping(void)
-{
-	/* Write the watchdog default value */
-	eurwdt_set_timeout(eurwdt_timeout);
-}
-
-/**
- * eurwdt_write:
- * @file: file handle to the watchdog
- * @buf: buffer to write (unused as data does not matter here
- * @count: count of bytes
- * @ppos: pointer to the position to write. No seeks allowed
- *
- * A write to a watchdog device is defined as a keepalive signal. Any
- * write of data will do, as we we don't define content meaning.
- */
-
-static ssize_t eurwdt_write(struct file *file, const char __user *buf,
-size_t count, loff_t *ppos)
-{
-	if (count) 	{
-		if (!nowayout) {
-			size_t i;
-
-			eur_expect_close = 0;
-
-			for (i = 0; i != count; i++) {
-				char c;
-				if(get_user(c, buf+i))
-					return -EFAULT;
-				if (c == 'V')
-					eur_expect_close = 42;
-			}
-		}
-		eurwdt_ping();	/* the default timeout */
-	}
-
-	return count;
-}
-
-/**
- * eurwdt_ioctl:
- * @inode: inode of the device
- * @file: file handle to the device
- * @cmd: watchdog command
- * @arg: argument pointer
- *
- * The watchdog API defines a common set of functions for all watchdogs
- * according to their available features.
- */
-
-static int eurwdt_ioctl(struct inode *inode, struct file *file,
-	unsigned int cmd, unsigned long arg)
-{
-	void __user *argp = (void __user *)arg;
-	int __user *p = argp;
-	static struct watchdog_info ident = {
-		.options	  = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT | WDIOF_MAGICCLOSE,
-		.firmware_version = 1,
-		.identity	  = "WDT Eurotech CPU-1220/1410",
-	};
-
-	int time;
-	int options, retval = -EINVAL;
-
-	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:
-		eurwdt_ping();
-		return 0;
-
-	case WDIOC_SETTIMEOUT:
-		if (copy_from_user(&time, p, sizeof(int)))
-			return -EFAULT;
-
-		/* Sanity check */
-		if (time < 0 || time > 255)
-			return -EINVAL;
-
-		eurwdt_timeout = time;
-		eurwdt_set_timeout(time);
-		/* Fall */
-
-	case WDIOC_GETTIMEOUT:
-		return put_user(eurwdt_timeout, p);
-
-	case WDIOC_SETOPTIONS:
-		if (get_user(options, p))
-			return -EFAULT;
-		if (options & WDIOS_DISABLECARD) {
-			eurwdt_disable_timer();
-			retval = 0;
-		}
-		if (options & WDIOS_ENABLECARD) {
-			eurwdt_activate_timer();
-			eurwdt_ping();
-			retval = 0;
-		}
-		return retval;
-	}
-}
-
-/**
- * eurwdt_open:
- * @inode: inode of device
- * @file: file handle to device
- *
- * The misc device has been opened. The watchdog device is single
- * open and on opening we load the counter.
- */
-
-static int eurwdt_open(struct inode *inode, struct file *file)
-{
-	if (test_and_set_bit(0, &eurwdt_is_open))
-		return -EBUSY;
-	eurwdt_timeout = WDT_TIMEOUT;	/* initial timeout */
-	/* Activate the WDT */
-	eurwdt_activate_timer();
-	return nonseekable_open(inode, file);
-}
-
-/**
- * eurwdt_release:
- * @inode: inode to board
- * @file: file handle to board
- *
- * The watchdog has a configurable API. There is a religious dispute
- * between people who want their watchdog to be able to shut down and
- * those who want to be sure if the watchdog manager dies the machine
- * reboots. In the former case we disable the counters, in the latter
- * case you have to open it again very soon.
- */
-
-static int eurwdt_release(struct inode *inode, struct file *file)
-{
-	if (eur_expect_close == 42) {
-		eurwdt_disable_timer();
-	} else {
-		printk(KERN_CRIT "eurwdt: Unexpected close, not stopping watchdog!\n");
-		eurwdt_ping();
-	}
-	clear_bit(0, &eurwdt_is_open);
-	eur_expect_close = 0;
-	return 0;
-}
-
-/**
- * eurwdt_notify_sys:
- * @this: our notifier block
- * @code: the event being reported
- * @unused: unused
- *
- * Our notifier is called on system shutdowns. We want to turn the card
- * off at reboot otherwise the machine will reboot again during memory
- * test or worse yet during the following fsck. This would suck, in fact
- * trust me - if it happens it does suck.
- */
-
-static int eurwdt_notify_sys(struct notifier_block *this, unsigned long code,
-	void *unused)
-{
-	if (code == SYS_DOWN || code == SYS_HALT) {
-		/* Turn the card off */
-		eurwdt_disable_timer();
-	}
-
-	return NOTIFY_DONE;
-}
-
-/*
- * Kernel Interfaces
- */
-
-
-static const struct file_operations eurwdt_fops = {
-	.owner	= THIS_MODULE,
-	.llseek	= no_llseek,
-	.write	= eurwdt_write,
-	.ioctl	= eurwdt_ioctl,
-	.open	= eurwdt_open,
-	.release	= eurwdt_release,
-};
-
-static struct miscdevice eurwdt_miscdev = {
-	.minor	= WATCHDOG_MINOR,
-	.name	= "watchdog",
-	.fops	= &eurwdt_fops,
-};
-
-/*
- * The WDT card needs to learn about soft shutdowns in order to
- * turn the timebomb registers off.
- */
-
-static struct notifier_block eurwdt_notifier = {
-	.notifier_call = eurwdt_notify_sys,
-};
-
-/**
- * cleanup_module:
- *
- * Unload the watchdog. You cannot do this with any file handles open.
- * If your watchdog is set to continue ticking on close and you unload
- * it, well it keeps ticking. We won't get the interrupt but the board
- * will not touch PC memory so all is fine. You just have to load a new
- * module in 60 seconds or reboot.
- */
-
-static void __exit eurwdt_exit(void)
-{
-	eurwdt_lock_chip();
-
-	misc_deregister(&eurwdt_miscdev);
-
-	unregister_reboot_notifier(&eurwdt_notifier);
-	release_region(io, 2);
-	free_irq(irq, NULL);
-}
-
-/**
- * eurwdt_init:
- *
- * Set up the WDT watchdog board. After grabbing the resources
- * we require we need also to unlock the device.
- * The open() function will actually kick the board off.
- */
-
-static int __init eurwdt_init(void)
-{
-	int ret;
-
-	ret = request_irq(irq, eurwdt_interrupt, IRQF_DISABLED, "eurwdt", NULL);
-	if(ret) {
-		printk(KERN_ERR "eurwdt: IRQ %d is not free.\n", irq);
-		goto out;
-	}
-
-	if (!request_region(io, 2, "eurwdt")) {
-		printk(KERN_ERR "eurwdt: IO %X is not free.\n", io);
-		ret = -EBUSY;
-		goto outirq;
-	}
-
-	ret = register_reboot_notifier(&eurwdt_notifier);
-	if (ret) {
-		printk(KERN_ERR "eurwdt: can't register reboot notifier (err=%d)\n", ret);
-		goto outreg;
-	}
-
-	ret = misc_register(&eurwdt_miscdev);
-	if (ret) {
-		printk(KERN_ERR "eurwdt: can't misc_register on minor=%d\n",
-		WATCHDOG_MINOR);
-		goto outreboot;
-	}
-
-	eurwdt_unlock_chip();
-
-	ret = 0;
-	printk(KERN_INFO "Eurotech WDT driver 0.01 at %X (Interrupt %d)"
-		" - timeout event: %s\n",
-		io, irq, (!strcmp("int", ev) ? "int" : "reboot"));
-
-out:
-	return ret;
-
-outreboot:
-	unregister_reboot_notifier(&eurwdt_notifier);
-
-outreg:
-	release_region(io, 2);
-
-outirq:
-	free_irq(irq, NULL);
-	goto out;
-}
-
-module_init(eurwdt_init);
-module_exit(eurwdt_exit);
-
-MODULE_AUTHOR("Rodolfo Giometti");
-MODULE_DESCRIPTION("Driver for Eurotech CPU-1220/1410 on board watchdog");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);