patch-2.3.43 linux/arch/i386/kernel/pm.c

• Lines: 105
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.3.42/linux/arch/i386/kernel/pm.c
• Orig date: Fri Jan 28 15:09:06 2000

diff -u --recursive --new-file v2.3.42/linux/arch/i386/kernel/pm.c linux/arch/i386/kernel/pm.c
@@ -1,104 +0,0 @@
-/*
- *  pm.c - Power management interface
- *
- *  Copyright (C) 2000 Andrew Henroid
- *
- *  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.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#include <linux/module.h>
-#include <linux/spinlock.h>
-#include <linux/slab.h>
-#include <linux/pm.h>
-
-static spinlock_t pm_devs_lock = SPIN_LOCK_UNLOCKED;
-static LIST_HEAD(pm_devs);
-
-/*
- * Register a device with power management
- */
-struct pm_dev *pm_register(pm_dev_t type,
-			   unsigned long id,
-			   pm_callback callback)
-{
-	struct pm_dev *dev = kmalloc(sizeof(struct pm_dev), GFP_KERNEL);
-	if (dev) {
-		unsigned long flags;
-
-		memset(dev, 0, sizeof(*dev));
-		dev->type = type;
-		dev->id = id;
-		dev->callback = callback;
-
-		spin_lock_irqsave(&pm_devs_lock, flags);
-		list_add(&dev->entry, &pm_devs);
-		spin_unlock_irqrestore(&pm_devs_lock, flags);
-	}
-	return dev;
-}
-
-/*
- * Unregister a device with power management
- */
-void pm_unregister(struct pm_dev *dev)
-{
-	if (dev) {
-		unsigned long flags;
-
-		spin_lock_irqsave(&pm_devs_lock, flags);
-		list_del(&dev->entry);
-		spin_unlock_irqrestore(&pm_devs_lock, flags);
-
-		kfree(dev);
-	}
-}
-
-/*
- * Send a request to all devices
- */
-int pm_send_request(pm_request_t rqst, void *data)
-{
-	struct list_head *entry = pm_devs.next;
-	while (entry != &pm_devs) {
-		struct pm_dev *dev = list_entry(entry, struct pm_dev, entry);
-		if (dev->callback) {
-			int status = (*dev->callback)(dev, rqst, data);
-			if (status)
-				return status;
-		}
-		entry = entry->next;
-	}
-	return 0;
-}
-
-/*
- * Find a device
- */
-struct pm_dev *pm_find(pm_dev_t type, struct pm_dev *from)
-{
-	struct list_head *entry = from ? from->entry.next:pm_devs.next;
-	while (entry != &pm_devs) {
-		struct pm_dev *dev = list_entry(entry, struct pm_dev, entry);
-		if (type == PM_UNKNOWN_DEV || dev->type == type)
-			return dev;
-		entry = entry->next;
-	}
-	return 0;
-}
-
-EXPORT_SYMBOL(pm_register);
-EXPORT_SYMBOL(pm_unregister);
-EXPORT_SYMBOL(pm_send_request);
-EXPORT_SYMBOL(pm_find);