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, 348 deletions

diff --git a/drivers/char/watchdog/acquirewdt.c b/drivers/char/watchdog/acquirewdt.c
deleted file mode 100644
index 85269c365a1..00000000000
--- a/drivers/char/watchdog/acquirewdt.c
+++ /dev/null
@@ -1,348 +0,0 @@
-/*
- *	Acquire Single Board Computer Watchdog Timer driver
- *
- *      Based on wdt.c. Original copyright messages:
- *
- *	(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@redhat.com>
- *
- *      14-Dec-2001 Matt Domsch <Matt_Domsch@dell.com>
- *          Added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT
- *          Can't add timeout - driver doesn't allow changing value
- */
-
-/*
- *	Theory of Operation:
- *		The Watch-Dog Timer is provided to ensure that standalone
- *		Systems can always recover from catastrophic conditions that
- *		caused the CPU to crash. This condition may have occured by
- *		external EMI or a software bug. When the CPU stops working
- *		correctly, hardware on the board will either perform a hardware
- *		reset (cold boot) or a non-maskable interrupt (NMI) to bring the
- *		system back to a known state.
- *
- *		The Watch-Dog Timer is controlled by two I/O Ports.
- *		  443 hex	- Read	- Enable or refresh the Watch-Dog Timer
- *		  043 hex	- Read	- Disable the Watch-Dog Timer
- *
- *		To enable the Watch-Dog Timer, a read from I/O port 443h must
- *		be performed. This will enable and activate the countdown timer
- *		which will eventually time out and either reset the CPU or cause
- *		an NMI depending on the setting of a jumper. To ensure that this
- *		reset condition does not occur, the Watch-Dog Timer must be
- *		periodically refreshed by reading the same I/O port 443h.
- *		The Watch-Dog Timer is disabled by reading I/O port 043h.
- *
- *		The Watch-Dog Timer Time-Out Period is set via jumpers.
- *		It can be 1, 2, 10, 20, 110 or 220 seconds.
- */
-
-/*
- *	Includes, defines, variables, module parameters, ...
- */
-
-/* Includes */
-#include <linux/module.h>		/* For module specific items */
-#include <linux/moduleparam.h>		/* For new moduleparam's */
-#include <linux/types.h>		/* For standard types (like size_t) */
-#include <linux/errno.h>		/* For the -ENODEV/... values */
-#include <linux/kernel.h>		/* For printk/panic/... */
-#include <linux/miscdevice.h>		/* For MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR) */
-#include <linux/watchdog.h>		/* For the watchdog specific items */
-#include <linux/fs.h>			/* For file operations */
-#include <linux/ioport.h>		/* For io-port access */
-#include <linux/platform_device.h>	/* For platform_driver framework */
-#include <linux/init.h>			/* For __init/__exit/... */
-
-#include <asm/uaccess.h>		/* For copy_to_user/put_user/... */
-#include <asm/io.h>			/* For inb/outb/... */
-
-/* Module information */
-#define DRV_NAME "acquirewdt"
-#define PFX DRV_NAME ": "
-#define WATCHDOG_NAME "Acquire WDT"
-#define WATCHDOG_HEARTBEAT 0	/* There is no way to see what the correct time-out period is */
-
-/* internal variables */
-static struct platform_device *acq_platform_device;	/* the watchdog platform device */
-static unsigned long acq_is_open;
-static char expect_close;
-
-/* module parameters */
-static int wdt_stop = 0x43;	/* You must set this - there is no sane way to probe for this board. */
-module_param(wdt_stop, int, 0);
-MODULE_PARM_DESC(wdt_stop, "Acquire WDT 'stop' io port (default 0x43)");
-
-static int wdt_start = 0x443;	/* You must set this - there is no sane way to probe for this board. */
-module_param(wdt_start, int, 0);
-MODULE_PARM_DESC(wdt_start, "Acquire WDT 'start' io port (default 0x443)");
-
-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) ")");
-
-/*
- *	Watchdog Operations
- */
-
-static void acq_keepalive(void)
-{
-	/* Write a watchdog value */
-	inb_p(wdt_start);
-}
-
-static void acq_stop(void)
-{
-	/* Turn the card off */
-	inb_p(wdt_stop);
-}
-
-/*
- *	/dev/watchdog handling
- */
-
-static ssize_t acq_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
-{
-	/* See if we got the magic character 'V' and reload the timer */
-	if(count) {
-		if (!nowayout) {
-			size_t i;
-
-			/* note: just in case someone wrote the magic character
-			 * five months ago... */
-			expect_close = 0;
-
-			/* scan to see whether or not we got the magic character */
-			for (i = 0; i != count; i++) {
-				char c;
-				if (get_user(c, buf + i))
-					return -EFAULT;
-				if (c == 'V')
-					expect_close = 42;
-			}
-		}
-
-		/* Well, anyhow someone wrote to us, we should return that favour */
-		acq_keepalive();
-	}
-	return count;
-}
-
-static int acq_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
-	unsigned long arg)
-{
-	int options, retval = -EINVAL;
-	void __user *argp = (void __user *)arg;
-	int __user *p = argp;
-	static struct watchdog_info ident =
-	{
-		.options = WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
-		.firmware_version = 1,
-		.identity = WATCHDOG_NAME,
-	};
-
-	switch(cmd)
-	{
-	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:
-	  acq_keepalive();
-	  return 0;
-
-	case WDIOC_GETTIMEOUT:
-	  return put_user(WATCHDOG_HEARTBEAT, p);
-
-	case WDIOC_SETOPTIONS:
-	{
-	    if (get_user(options, p))
-	      return -EFAULT;
-
-	    if (options & WDIOS_DISABLECARD)
-	    {
-	      acq_stop();
-	      retval = 0;
-	    }
-
-	    if (options & WDIOS_ENABLECARD)
-	    {
-	      acq_keepalive();
-	      retval = 0;
-	    }
-
-	    return retval;
-	}
-
-	default:
-	  return -ENOTTY;
-	}
-}
-
-static int acq_open(struct inode *inode, struct file *file)
-{
-	if (test_and_set_bit(0, &acq_is_open))
-		return -EBUSY;
-
-	if (nowayout)
-		__module_get(THIS_MODULE);
-
-	/* Activate */
-	acq_keepalive();
-	return nonseekable_open(inode, file);
-}
-
-static int acq_close(struct inode *inode, struct file *file)
-{
-	if (expect_close == 42) {
-		acq_stop();
-	} else {
-		printk(KERN_CRIT PFX "Unexpected close, not stopping watchdog!\n");
-		acq_keepalive();
-	}
-	clear_bit(0, &acq_is_open);
-	expect_close = 0;
-	return 0;
-}
-
-/*
- *	Kernel Interfaces
- */
-
-static const struct file_operations acq_fops = {
-	.owner		= THIS_MODULE,
-	.llseek		= no_llseek,
-	.write		= acq_write,
-	.ioctl		= acq_ioctl,
-	.open		= acq_open,
-	.release	= acq_close,
-};
-
-static struct miscdevice acq_miscdev = {
-	.minor	= WATCHDOG_MINOR,
-	.name	= "watchdog",
-	.fops	= &acq_fops,
-};
-
-/*
- *	Init & exit routines
- */
-
-static int __devinit acq_probe(struct platform_device *dev)
-{
-	int ret;
-
-	if (wdt_stop != wdt_start) {
-		if (!request_region(wdt_stop, 1, WATCHDOG_NAME)) {
-			printk (KERN_ERR PFX "I/O address 0x%04x already in use\n",
-				wdt_stop);
-			ret = -EIO;
-			goto out;
-		}
-	}
-
-	if (!request_region(wdt_start, 1, WATCHDOG_NAME)) {
-		printk (KERN_ERR PFX "I/O address 0x%04x already in use\n",
-			wdt_start);
-		ret = -EIO;
-		goto unreg_stop;
-	}
-
-	ret = misc_register(&acq_miscdev);
-	if (ret != 0) {
-		printk (KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
-			WATCHDOG_MINOR, ret);
-		goto unreg_regions;
-	}
-
-	printk (KERN_INFO PFX "initialized. (nowayout=%d)\n",
-		nowayout);
-
-	return 0;
-
-unreg_regions:
-	release_region(wdt_start, 1);
-unreg_stop:
-	if (wdt_stop != wdt_start)
-		release_region(wdt_stop, 1);
-out:
-	return ret;
-}
-
-static int __devexit acq_remove(struct platform_device *dev)
-{
-	misc_deregister(&acq_miscdev);
-	release_region(wdt_start,1);
-	if(wdt_stop != wdt_start)
-		release_region(wdt_stop,1);
-
-	return 0;
-}
-
-static void acq_shutdown(struct platform_device *dev)
-{
-	/* Turn the WDT off if we have a soft shutdown */
-	acq_stop();
-}
-
-static struct platform_driver acquirewdt_driver = {
-	.probe		= acq_probe,
-	.remove		= __devexit_p(acq_remove),
-	.shutdown	= acq_shutdown,
-	.driver		= {
-		.owner	= THIS_MODULE,
-		.name	= DRV_NAME,
-	},
-};
-
-static int __init acq_init(void)
-{
-	int err;
-
-	printk(KERN_INFO "WDT driver for Acquire single board computer initialising.\n");
-
-	err = platform_driver_register(&acquirewdt_driver);
-	if (err)
-		return err;
-
-	acq_platform_device = platform_device_register_simple(DRV_NAME, -1, NULL, 0);
-	if (IS_ERR(acq_platform_device)) {
-		err = PTR_ERR(acq_platform_device);
-		goto unreg_platform_driver;
-	}
-
-	return 0;
-
-unreg_platform_driver:
-	platform_driver_unregister(&acquirewdt_driver);
-	return err;
-}
-
-static void __exit acq_exit(void)
-{
-	platform_device_unregister(acq_platform_device);
-	platform_driver_unregister(&acquirewdt_driver);
-	printk(KERN_INFO PFX "Watchdog Module Unloaded.\n");
-}
-
-module_init(acq_init);
-module_exit(acq_exit);
-
-MODULE_AUTHOR("David Woodhouse");
-MODULE_DESCRIPTION("Acquire Inc. Single Board Computer Watchdog Timer driver");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);