1 files changed, 142 insertions, 0 deletions
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
new file mode 100644
index 0000000..2ec53f8
--- /dev/null
+++ b/include/linux/kobject.h
@@ -0,0 +1,142 @@
+/*
+ * kobject.h - generic kernel object infrastructure.
+ *
+ * Copyright (c) 2002-2003 Patrick Mochel
+ * Copyright (c) 2002-2003 Open Source Development Labs
+ * Copyright (c) 2006-2008 Greg Kroah-Hartman <greg@kroah.com>
+ * Copyright (c) 2006-2008 Novell Inc.
+ *
+ * This file is released under the GPLv2.
+ *
+ * Please read Documentation/kobject.txt before using the kobject
+ * interface, ESPECIALLY the parts about reference counts and object
+ * destructors.
+ */
+
+#ifndef _KOBJECT_H_
+#define _KOBJECT_H_
+
+#include <linux/atomic.h>
+#include <linux/bug.h>
+#include <linux/compiler.h>
+#include <linux/kernel.h>
+#include <linux/kref.h>
+#include <linux/sysfs.h>
+#include <linux/types.h>
+#include <linux/wait.h>
+#include <linux/workqueue.h>
+
+struct kset;
+
+struct kobj_type {
+	void (*release)(struct kobject *kobj);
+	const struct sysfs_ops *sysfs_ops;
+	struct attribute **default_attrs;
+	const struct kobj_ns_type_operations *(*child_ns_type)(struct kobject *kobj);
+	const void *(*namespace)(struct kobject *kobj);
+};
+
+struct kobj_uevent_env {
+};
+
+struct kobj_attribute {
+	struct attribute attr;
+	ssize_t (*show)(struct kobject *kobj, struct kobj_attribute *attr,
+			char *buf);
+	ssize_t (*store)(struct kobject *kobj, struct kobj_attribute *attr,
+			 const char *buf, size_t count);
+};
+
+struct kobject {
+	struct kobject		*parent;
+	struct kset		*kset;
+	struct kobj_type	*ktype;
+	struct kernfs_node	*sd; /* sysfs directory entry */
+	struct kref		kref;
+	unsigned int state_initialized:1;
+	unsigned int state_in_sysfs:1;
+	unsigned int state_add_uevent_sent:1;
+	unsigned int state_remove_uevent_sent:1;
+	unsigned int uevent_suppress:1;
+};
+
+struct kset {
+	struct kobject		kobj;
+};
+
+static inline struct kobj_type *get_ktype(struct kobject *kobj)
+{
+	return kobj->ktype;
+}
+
+#define kobject_add(...)	0
+
+static inline void kobject_init(struct kobject *kobj, struct kobj_type *ktype)
+{
+	memset(kobj, 0, sizeof(*kobj));
+
+	kref_init(&kobj->kref);
+	kobj->ktype = ktype;
+	kobj->state_initialized = 1;
+}
+
+static inline void kobject_del(struct kobject *kobj);
+
+static inline void kobject_cleanup(struct kobject *kobj)
+{
+	struct kobj_type *t = get_ktype(kobj);
+
+	/* remove from sysfs if the caller did not do it */
+	if (kobj->state_in_sysfs)
+		kobject_del(kobj);
+
+	if (t && t->release)
+		t->release(kobj);
+}
+
+static inline void kobject_release(struct kref *kref)
+{
+	struct kobject *kobj = container_of(kref, struct kobject, kref);
+
+	kobject_cleanup(kobj);
+}
+
+static inline void kobject_put(struct kobject *kobj)
+{
+	BUG_ON(!kobj);
+	BUG_ON(!kobj->state_initialized);
+
+	kref_put(&kobj->kref, kobject_release);
+}
+
+static inline void kobject_del(struct kobject *kobj)
+{
+	struct kernfs_node *sd;
+
+	if (!kobj)
+		return;
+
+	sd = kobj->sd;
+	kobj->state_in_sysfs = 0;
+#if 0
+	kobj_kset_leave(kobj);
+#endif
+	kobject_put(kobj->parent);
+	kobj->parent = NULL;
+}
+
+static inline struct kobject *kobject_get(struct kobject *kobj)
+{
+	BUG_ON(!kobj);
+	BUG_ON(!kobj->state_initialized);
+
+	kref_get(&kobj->kref);
+	return kobj;
+}
+
+static inline void kset_unregister(struct kset *kset) {}
+
+#define kset_create_and_add(_name, _u, _parent)				\
+	((struct kset *) kzalloc(sizeof(struct kset), GFP_KERNEL))
+
+#endif /* _KOBJECT_H_ */