1 files changed, 0 insertions, 609 deletions
diff --git a/ANDROID_3.4.5/drivers/base/class.c b/ANDROID_3.4.5/drivers/base/class.c
deleted file mode 100644
index 03243d40..00000000
--- a/ANDROID_3.4.5/drivers/base/class.c
+++ /dev/null
@@ -1,609 +0,0 @@
-/*
- * class.c - basic device class management
- *
- * Copyright (c) 2002-3 Patrick Mochel
- * Copyright (c) 2002-3 Open Source Development Labs
- * Copyright (c) 2003-2004 Greg Kroah-Hartman
- * Copyright (c) 2003-2004 IBM Corp.
- *
- * This file is released under the GPLv2
- *
- */
-
-#include <linux/device.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/string.h>
-#include <linux/kdev_t.h>
-#include <linux/err.h>
-#include <linux/slab.h>
-#include <linux/genhd.h>
-#include <linux/mutex.h>
-#include "base.h"
-
-#define to_class_attr(_attr) container_of(_attr, struct class_attribute, attr)
-
-static ssize_t class_attr_show(struct kobject *kobj, struct attribute *attr,
-			       char *buf)
-{
-	struct class_attribute *class_attr = to_class_attr(attr);
-	struct subsys_private *cp = to_subsys_private(kobj);
-	ssize_t ret = -EIO;
-
-	if (class_attr->show)
-		ret = class_attr->show(cp->class, class_attr, buf);
-	return ret;
-}
-
-static ssize_t class_attr_store(struct kobject *kobj, struct attribute *attr,
-				const char *buf, size_t count)
-{
-	struct class_attribute *class_attr = to_class_attr(attr);
-	struct subsys_private *cp = to_subsys_private(kobj);
-	ssize_t ret = -EIO;
-
-	if (class_attr->store)
-		ret = class_attr->store(cp->class, class_attr, buf, count);
-	return ret;
-}
-
-static const void *class_attr_namespace(struct kobject *kobj,
-					const struct attribute *attr)
-{
-	struct class_attribute *class_attr = to_class_attr(attr);
-	struct subsys_private *cp = to_subsys_private(kobj);
-	const void *ns = NULL;
-
-	if (class_attr->namespace)
-		ns = class_attr->namespace(cp->class, class_attr);
-	return ns;
-}
-
-static void class_release(struct kobject *kobj)
-{
-	struct subsys_private *cp = to_subsys_private(kobj);
-	struct class *class = cp->class;
-
-	pr_debug("class '%s': release.\n", class->name);
-
-	if (class->class_release)
-		class->class_release(class);
-	else
-		pr_debug("class '%s' does not have a release() function, "
-			 "be careful\n", class->name);
-
-	kfree(cp);
-}
-
-static const struct kobj_ns_type_operations *class_child_ns_type(struct kobject *kobj)
-{
-	struct subsys_private *cp = to_subsys_private(kobj);
-	struct class *class = cp->class;
-
-	return class->ns_type;
-}
-
-static const struct sysfs_ops class_sysfs_ops = {
-	.show	   = class_attr_show,
-	.store	   = class_attr_store,
-	.namespace = class_attr_namespace,
-};
-
-static struct kobj_type class_ktype = {
-	.sysfs_ops	= &class_sysfs_ops,
-	.release	= class_release,
-	.child_ns_type	= class_child_ns_type,
-};
-
-/* Hotplug events for classes go to the class subsys */
-static struct kset *class_kset;
-
-
-int class_create_file(struct class *cls, const struct class_attribute *attr)
-{
-	int error;
-	if (cls)
-		error = sysfs_create_file(&cls->p->subsys.kobj,
-					  &attr->attr);
-	else
-		error = -EINVAL;
-	return error;
-}
-
-void class_remove_file(struct class *cls, const struct class_attribute *attr)
-{
-	if (cls)
-		sysfs_remove_file(&cls->p->subsys.kobj, &attr->attr);
-}
-
-static struct class *class_get(struct class *cls)
-{
-	if (cls)
-		kset_get(&cls->p->subsys);
-	return cls;
-}
-
-static void class_put(struct class *cls)
-{
-	if (cls)
-		kset_put(&cls->p->subsys);
-}
-
-static int add_class_attrs(struct class *cls)
-{
-	int i;
-	int error = 0;
-
-	if (cls->class_attrs) {
-		for (i = 0; attr_name(cls->class_attrs[i]); i++) {
-			error = class_create_file(cls, &cls->class_attrs[i]);
-			if (error)
-				goto error;
-		}
-	}
-done:
-	return error;
-error:
-	while (--i >= 0)
-		class_remove_file(cls, &cls->class_attrs[i]);
-	goto done;
-}
-
-static void remove_class_attrs(struct class *cls)
-{
-	int i;
-
-	if (cls->class_attrs) {
-		for (i = 0; attr_name(cls->class_attrs[i]); i++)
-			class_remove_file(cls, &cls->class_attrs[i]);
-	}
-}
-
-static void klist_class_dev_get(struct klist_node *n)
-{
-	struct device *dev = container_of(n, struct device, knode_class);
-
-	get_device(dev);
-}
-
-static void klist_class_dev_put(struct klist_node *n)
-{
-	struct device *dev = container_of(n, struct device, knode_class);
-
-	put_device(dev);
-}
-
-int __class_register(struct class *cls, struct lock_class_key *key)
-{
-	struct subsys_private *cp;
-	int error;
-
-	pr_debug("device class '%s': registering\n", cls->name);
-
-	cp = kzalloc(sizeof(*cp), GFP_KERNEL);
-	if (!cp)
-		return -ENOMEM;
-	klist_init(&cp->klist_devices, klist_class_dev_get, klist_class_dev_put);
-	INIT_LIST_HEAD(&cp->interfaces);
-	kset_init(&cp->glue_dirs);
-	__mutex_init(&cp->mutex, "subsys mutex", key);
-	error = kobject_set_name(&cp->subsys.kobj, "%s", cls->name);
-	if (error) {
-		kfree(cp);
-		return error;
-	}
-
-	/* set the default /sys/dev directory for devices of this class */
-	if (!cls->dev_kobj)
-		cls->dev_kobj = sysfs_dev_char_kobj;
-
-#if defined(CONFIG_BLOCK)
-	/* let the block class directory show up in the root of sysfs */
-	if (!sysfs_deprecated || cls != &block_class)
-		cp->subsys.kobj.kset = class_kset;
-#else
-	cp->subsys.kobj.kset = class_kset;
-#endif
-	cp->subsys.kobj.ktype = &class_ktype;
-	cp->class = cls;
-	cls->p = cp;
-
-	error = kset_register(&cp->subsys);
-	if (error) {
-		kfree(cp);
-		return error;
-	}
-	error = add_class_attrs(class_get(cls));
-	class_put(cls);
-	return error;
-}
-EXPORT_SYMBOL_GPL(__class_register);
-
-void class_unregister(struct class *cls)
-{
-	pr_debug("device class '%s': unregistering\n", cls->name);
-	remove_class_attrs(cls);
-	kset_unregister(&cls->p->subsys);
-}
-
-static void class_create_release(struct class *cls)
-{
-	pr_debug("%s called for %s\n", __func__, cls->name);
-	kfree(cls);
-}
-
-/**
- * class_create - create a struct class structure
- * @owner: pointer to the module that is to "own" this struct class
- * @name: pointer to a string for the name of this class.
- * @key: the lock_class_key for this class; used by mutex lock debugging
- *
- * This is used to create a struct class pointer that can then be used
- * in calls to device_create().
- *
- * Returns &struct class pointer on success, or ERR_PTR() on error.
- *
- * Note, the pointer created here is to be destroyed when finished by
- * making a call to class_destroy().
- */
-struct class *__class_create(struct module *owner, const char *name,
-			     struct lock_class_key *key)
-{
-	struct class *cls;
-	int retval;
-
-	cls = kzalloc(sizeof(*cls), GFP_KERNEL);
-	if (!cls) {
-		retval = -ENOMEM;
-		goto error;
-	}
-
-	cls->name = name;
-	cls->owner = owner;
-	cls->class_release = class_create_release;
-
-	retval = __class_register(cls, key);
-	if (retval)
-		goto error;
-
-	return cls;
-
-error:
-	kfree(cls);
-	return ERR_PTR(retval);
-}
-EXPORT_SYMBOL_GPL(__class_create);
-
-/**
- * class_destroy - destroys a struct class structure
- * @cls: pointer to the struct class that is to be destroyed
- *
- * Note, the pointer to be destroyed must have been created with a call
- * to class_create().
- */
-void class_destroy(struct class *cls)
-{
-	if ((cls == NULL) || (IS_ERR(cls)))
-		return;
-
-	class_unregister(cls);
-}
-
-/**
- * class_dev_iter_init - initialize class device iterator
- * @iter: class iterator to initialize
- * @class: the class we wanna iterate over
- * @start: the device to start iterating from, if any
- * @type: device_type of the devices to iterate over, NULL for all
- *
- * Initialize class iterator @iter such that it iterates over devices
- * of @class.  If @start is set, the list iteration will start there,
- * otherwise if it is NULL, the iteration starts at the beginning of
- * the list.
- */
-void class_dev_iter_init(struct class_dev_iter *iter, struct class *class,
-			 struct device *start, const struct device_type *type)
-{
-	struct klist_node *start_knode = NULL;
-
-	if (start)
-		start_knode = &start->knode_class;
-	klist_iter_init_node(&class->p->klist_devices, &iter->ki, start_knode);
-	iter->type = type;
-}
-EXPORT_SYMBOL_GPL(class_dev_iter_init);
-
-/**
- * class_dev_iter_next - iterate to the next device
- * @iter: class iterator to proceed
- *
- * Proceed @iter to the next device and return it.  Returns NULL if
- * iteration is complete.
- *
- * The returned device is referenced and won't be released till
- * iterator is proceed to the next device or exited.  The caller is
- * free to do whatever it wants to do with the device including
- * calling back into class code.
- */
-struct device *class_dev_iter_next(struct class_dev_iter *iter)
-{
-	struct klist_node *knode;
-	struct device *dev;
-
-	while (1) {
-		knode = klist_next(&iter->ki);
-		if (!knode)
-			return NULL;
-		dev = container_of(knode, struct device, knode_class);
-		if (!iter->type || iter->type == dev->type)
-			return dev;
-	}
-}
-EXPORT_SYMBOL_GPL(class_dev_iter_next);
-
-/**
- * class_dev_iter_exit - finish iteration
- * @iter: class iterator to finish
- *
- * Finish an iteration.  Always call this function after iteration is
- * complete whether the iteration ran till the end or not.
- */
-void class_dev_iter_exit(struct class_dev_iter *iter)
-{
-	klist_iter_exit(&iter->ki);
-}
-EXPORT_SYMBOL_GPL(class_dev_iter_exit);
-
-/**
- * class_for_each_device - device iterator
- * @class: the class we're iterating
- * @start: the device to start with in the list, if any.
- * @data: data for the callback
- * @fn: function to be called for each device
- *
- * Iterate over @class's list of devices, and call @fn for each,
- * passing it @data.  If @start is set, the list iteration will start
- * there, otherwise if it is NULL, the iteration starts at the
- * beginning of the list.
- *
- * We check the return of @fn each time. If it returns anything
- * other than 0, we break out and return that value.
- *
- * @fn is allowed to do anything including calling back into class
- * code.  There's no locking restriction.
- */
-int class_for_each_device(struct class *class, struct device *start,
-			  void *data, int (*fn)(struct device *, void *))
-{
-	struct class_dev_iter iter;
-	struct device *dev;
-	int error = 0;
-
-	if (!class)
-		return -EINVAL;
-	if (!class->p) {
-		WARN(1, "%s called for class '%s' before it was initialized",
-		     __func__, class->name);
-		return -EINVAL;
-	}
-
-	class_dev_iter_init(&iter, class, start, NULL);
-	while ((dev = class_dev_iter_next(&iter))) {
-		error = fn(dev, data);
-		if (error)
-			break;
-	}
-	class_dev_iter_exit(&iter);
-
-	return error;
-}
-EXPORT_SYMBOL_GPL(class_for_each_device);
-
-/**
- * class_find_device - device iterator for locating a particular device
- * @class: the class we're iterating
- * @start: Device to begin with
- * @data: data for the match function
- * @match: function to check device
- *
- * This is similar to the class_for_each_dev() function above, but it
- * returns a reference to a device that is 'found' for later use, as
- * determined by the @match callback.
- *
- * The callback should return 0 if the device doesn't match and non-zero
- * if it does.  If the callback returns non-zero, this function will
- * return to the caller and not iterate over any more devices.
- *
- * Note, you will need to drop the reference with put_device() after use.
- *
- * @fn is allowed to do anything including calling back into class
- * code.  There's no locking restriction.
- */
-struct device *class_find_device(struct class *class, struct device *start,
-				 void *data,
-				 int (*match)(struct device *, void *))
-{
-	struct class_dev_iter iter;
-	struct device *dev;
-
-	if (!class)
-		return NULL;
-	if (!class->p) {
-		WARN(1, "%s called for class '%s' before it was initialized",
-		     __func__, class->name);
-		return NULL;
-	}
-
-	class_dev_iter_init(&iter, class, start, NULL);
-	while ((dev = class_dev_iter_next(&iter))) {
-		if (match(dev, data)) {
-			get_device(dev);
-			break;
-		}
-	}
-	class_dev_iter_exit(&iter);
-
-	return dev;
-}
-EXPORT_SYMBOL_GPL(class_find_device);
-
-int class_interface_register(struct class_interface *class_intf)
-{
-	struct class *parent;
-	struct class_dev_iter iter;
-	struct device *dev;
-
-	if (!class_intf || !class_intf->class)
-		return -ENODEV;
-
-	parent = class_get(class_intf->class);
-	if (!parent)
-		return -EINVAL;
-
-	mutex_lock(&parent->p->mutex);
-	list_add_tail(&class_intf->node, &parent->p->interfaces);
-	if (class_intf->add_dev) {
-		class_dev_iter_init(&iter, parent, NULL, NULL);
-		while ((dev = class_dev_iter_next(&iter)))
-			class_intf->add_dev(dev, class_intf);
-		class_dev_iter_exit(&iter);
-	}
-	mutex_unlock(&parent->p->mutex);
-
-	return 0;
-}
-
-void class_interface_unregister(struct class_interface *class_intf)
-{
-	struct class *parent = class_intf->class;
-	struct class_dev_iter iter;
-	struct device *dev;
-
-	if (!parent)
-		return;
-
-	mutex_lock(&parent->p->mutex);
-	list_del_init(&class_intf->node);
-	if (class_intf->remove_dev) {
-		class_dev_iter_init(&iter, parent, NULL, NULL);
-		while ((dev = class_dev_iter_next(&iter)))
-			class_intf->remove_dev(dev, class_intf);
-		class_dev_iter_exit(&iter);
-	}
-	mutex_unlock(&parent->p->mutex);
-
-	class_put(parent);
-}
-
-ssize_t show_class_attr_string(struct class *class,
-			       struct class_attribute *attr, char *buf)
-{
-	struct class_attribute_string *cs;
-	cs = container_of(attr, struct class_attribute_string, attr);
-	return snprintf(buf, PAGE_SIZE, "%s\n", cs->str);
-}
-
-EXPORT_SYMBOL_GPL(show_class_attr_string);
-
-struct class_compat {
-	struct kobject *kobj;
-};
-
-/**
- * class_compat_register - register a compatibility class
- * @name: the name of the class
- *
- * Compatibility class are meant as a temporary user-space compatibility
- * workaround when converting a family of class devices to a bus devices.
- */
-struct class_compat *class_compat_register(const char *name)
-{
-	struct class_compat *cls;
-
-	cls = kmalloc(sizeof(struct class_compat), GFP_KERNEL);
-	if (!cls)
-		return NULL;
-	cls->kobj = kobject_create_and_add(name, &class_kset->kobj);
-	if (!cls->kobj) {
-		kfree(cls);
-		return NULL;
-	}
-	return cls;
-}
-EXPORT_SYMBOL_GPL(class_compat_register);
-
-/**
- * class_compat_unregister - unregister a compatibility class
- * @cls: the class to unregister
- */
-void class_compat_unregister(struct class_compat *cls)
-{
-	kobject_put(cls->kobj);
-	kfree(cls);
-}
-EXPORT_SYMBOL_GPL(class_compat_unregister);
-
-/**
- * class_compat_create_link - create a compatibility class device link to
- *			      a bus device
- * @cls: the compatibility class
- * @dev: the target bus device
- * @device_link: an optional device to which a "device" link should be created
- */
-int class_compat_create_link(struct class_compat *cls, struct device *dev,
-			     struct device *device_link)
-{
-	int error;
-
-	error = sysfs_create_link(cls->kobj, &dev->kobj, dev_name(dev));
-	if (error)
-		return error;
-
-	/*
-	 * Optionally add a "device" link (typically to the parent), as a
-	 * class device would have one and we want to provide as much
-	 * backwards compatibility as possible.
-	 */
-	if (device_link) {
-		error = sysfs_create_link(&dev->kobj, &device_link->kobj,
-					  "device");
-		if (error)
-			sysfs_remove_link(cls->kobj, dev_name(dev));
-	}
-
-	return error;
-}
-EXPORT_SYMBOL_GPL(class_compat_create_link);
-
-/**
- * class_compat_remove_link - remove a compatibility class device link to
- *			      a bus device
- * @cls: the compatibility class
- * @dev: the target bus device
- * @device_link: an optional device to which a "device" link was previously
- * 		 created
- */
-void class_compat_remove_link(struct class_compat *cls, struct device *dev,
-			      struct device *device_link)
-{
-	if (device_link)
-		sysfs_remove_link(&dev->kobj, "device");
-	sysfs_remove_link(cls->kobj, dev_name(dev));
-}
-EXPORT_SYMBOL_GPL(class_compat_remove_link);
-
-int __init classes_init(void)
-{
-	class_kset = kset_create_and_add("class", NULL, NULL);
-	if (!class_kset)
-		return -ENOMEM;
-	return 0;
-}
-
-EXPORT_SYMBOL_GPL(class_create_file);
-EXPORT_SYMBOL_GPL(class_remove_file);
-EXPORT_SYMBOL_GPL(class_unregister);
-EXPORT_SYMBOL_GPL(class_destroy);
-
-EXPORT_SYMBOL_GPL(class_interface_register);
-EXPORT_SYMBOL_GPL(class_interface_unregister);