Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 0 insertions, 575 deletions

diff --git a/ANDROID_3.4.5/fs/char_dev.c b/ANDROID_3.4.5/fs/char_dev.c
deleted file mode 100644
index 3f152b92..00000000
--- a/ANDROID_3.4.5/fs/char_dev.c
+++ /dev/null
@@ -1,575 +0,0 @@
-/*
- *  linux/fs/char_dev.c
- *
- *  Copyright (C) 1991, 1992  Linus Torvalds
- */
-
-#include <linux/init.h>
-#include <linux/fs.h>
-#include <linux/kdev_t.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-
-#include <linux/major.h>
-#include <linux/errno.h>
-#include <linux/module.h>
-#include <linux/seq_file.h>
-
-#include <linux/kobject.h>
-#include <linux/kobj_map.h>
-#include <linux/cdev.h>
-#include <linux/mutex.h>
-#include <linux/backing-dev.h>
-#include <linux/tty.h>
-
-#include "internal.h"
-
-/*
- * capabilities for /dev/mem, /dev/kmem and similar directly mappable character
- * devices
- * - permits shared-mmap for read, write and/or exec
- * - does not permit private mmap in NOMMU mode (can't do COW)
- * - no readahead or I/O queue unplugging required
- */
-struct backing_dev_info directly_mappable_cdev_bdi = {
-	.name = "char",
-	.capabilities	= (
-#ifdef CONFIG_MMU
-		/* permit private copies of the data to be taken */
-		BDI_CAP_MAP_COPY |
-#endif
-		/* permit direct mmap, for read, write or exec */
-		BDI_CAP_MAP_DIRECT |
-		BDI_CAP_READ_MAP | BDI_CAP_WRITE_MAP | BDI_CAP_EXEC_MAP |
-		/* no writeback happens */
-		BDI_CAP_NO_ACCT_AND_WRITEBACK),
-};
-
-static struct kobj_map *cdev_map;
-
-static DEFINE_MUTEX(chrdevs_lock);
-
-static struct char_device_struct {
-	struct char_device_struct *next;
-	unsigned int major;
-	unsigned int baseminor;
-	int minorct;
-	char name[64];
-	struct cdev *cdev;		/* will die */
-} *chrdevs[CHRDEV_MAJOR_HASH_SIZE];
-
-/* index in the above */
-static inline int major_to_index(unsigned major)
-{
-	return major % CHRDEV_MAJOR_HASH_SIZE;
-}
-
-#ifdef CONFIG_PROC_FS
-
-void chrdev_show(struct seq_file *f, off_t offset)
-{
-	struct char_device_struct *cd;
-
-	if (offset < CHRDEV_MAJOR_HASH_SIZE) {
-		mutex_lock(&chrdevs_lock);
-		for (cd = chrdevs[offset]; cd; cd = cd->next)
-			seq_printf(f, "%3d %s\n", cd->major, cd->name);
-		mutex_unlock(&chrdevs_lock);
-	}
-}
-
-#endif /* CONFIG_PROC_FS */
-
-/*
- * Register a single major with a specified minor range.
- *
- * If major == 0 this functions will dynamically allocate a major and return
- * its number.
- *
- * If major > 0 this function will attempt to reserve the passed range of
- * minors and will return zero on success.
- *
- * Returns a -ve errno on failure.
- */
-static struct char_device_struct *
-__register_chrdev_region(unsigned int major, unsigned int baseminor,
-			   int minorct, const char *name)
-{
-	struct char_device_struct *cd, **cp;
-	int ret = 0;
-	int i;
-
-	cd = kzalloc(sizeof(struct char_device_struct), GFP_KERNEL);
-	if (cd == NULL)
-		return ERR_PTR(-ENOMEM);
-
-	mutex_lock(&chrdevs_lock);
-
-	/* temporary */
-	if (major == 0) {
-		for (i = ARRAY_SIZE(chrdevs)-1; i > 0; i--) {
-			if (chrdevs[i] == NULL)
-				break;
-		}
-
-		if (i == 0) {
-			ret = -EBUSY;
-			goto out;
-		}
-		major = i;
-		ret = major;
-	}
-
-	cd->major = major;
-	cd->baseminor = baseminor;
-	cd->minorct = minorct;
-	strlcpy(cd->name, name, sizeof(cd->name));
-
-	i = major_to_index(major);
-
-	for (cp = &chrdevs[i]; *cp; cp = &(*cp)->next)
-		if ((*cp)->major > major ||
-		    ((*cp)->major == major &&
-		     (((*cp)->baseminor >= baseminor) ||
-		      ((*cp)->baseminor + (*cp)->minorct > baseminor))))
-			break;
-
-	/* Check for overlapping minor ranges.  */
-	if (*cp && (*cp)->major == major) {
-		int old_min = (*cp)->baseminor;
-		int old_max = (*cp)->baseminor + (*cp)->minorct - 1;
-		int new_min = baseminor;
-		int new_max = baseminor + minorct - 1;
-
-		/* New driver overlaps from the left.  */
-		if (new_max >= old_min && new_max <= old_max) {
-			ret = -EBUSY;
-			goto out;
-		}
-
-		/* New driver overlaps from the right.  */
-		if (new_min <= old_max && new_min >= old_min) {
-			ret = -EBUSY;
-			goto out;
-		}
-	}
-
-	cd->next = *cp;
-	*cp = cd;
-	mutex_unlock(&chrdevs_lock);
-	return cd;
-out:
-	mutex_unlock(&chrdevs_lock);
-	kfree(cd);
-	return ERR_PTR(ret);
-}
-
-static struct char_device_struct *
-__unregister_chrdev_region(unsigned major, unsigned baseminor, int minorct)
-{
-	struct char_device_struct *cd = NULL, **cp;
-	int i = major_to_index(major);
-
-	mutex_lock(&chrdevs_lock);
-	for (cp = &chrdevs[i]; *cp; cp = &(*cp)->next)
-		if ((*cp)->major == major &&
-		    (*cp)->baseminor == baseminor &&
-		    (*cp)->minorct == minorct)
-			break;
-	if (*cp) {
-		cd = *cp;
-		*cp = cd->next;
-	}
-	mutex_unlock(&chrdevs_lock);
-	return cd;
-}
-
-/**
- * register_chrdev_region() - register a range of device numbers
- * @from: the first in the desired range of device numbers; must include
- *        the major number.
- * @count: the number of consecutive device numbers required
- * @name: the name of the device or driver.
- *
- * Return value is zero on success, a negative error code on failure.
- */
-int register_chrdev_region(dev_t from, unsigned count, const char *name)
-{
-	struct char_device_struct *cd;
-	dev_t to = from + count;
-	dev_t n, next;
-
-	for (n = from; n < to; n = next) {
-		next = MKDEV(MAJOR(n)+1, 0);
-		if (next > to)
-			next = to;
-		cd = __register_chrdev_region(MAJOR(n), MINOR(n),
-			       next - n, name);
-		if (IS_ERR(cd))
-			goto fail;
-	}
-	return 0;
-fail:
-	to = n;
-	for (n = from; n < to; n = next) {
-		next = MKDEV(MAJOR(n)+1, 0);
-		kfree(__unregister_chrdev_region(MAJOR(n), MINOR(n), next - n));
-	}
-	return PTR_ERR(cd);
-}
-
-/**
- * alloc_chrdev_region() - register a range of char device numbers
- * @dev: output parameter for first assigned number
- * @baseminor: first of the requested range of minor numbers
- * @count: the number of minor numbers required
- * @name: the name of the associated device or driver
- *
- * Allocates a range of char device numbers.  The major number will be
- * chosen dynamically, and returned (along with the first minor number)
- * in @dev.  Returns zero or a negative error code.
- */
-int alloc_chrdev_region(dev_t *dev, unsigned baseminor, unsigned count,
-			const char *name)
-{
-	struct char_device_struct *cd;
-	cd = __register_chrdev_region(0, baseminor, count, name);
-	if (IS_ERR(cd))
-		return PTR_ERR(cd);
-	*dev = MKDEV(cd->major, cd->baseminor);
-	return 0;
-}
-
-/**
- * __register_chrdev() - create and register a cdev occupying a range of minors
- * @major: major device number or 0 for dynamic allocation
- * @baseminor: first of the requested range of minor numbers
- * @count: the number of minor numbers required
- * @name: name of this range of devices
- * @fops: file operations associated with this devices
- *
- * If @major == 0 this functions will dynamically allocate a major and return
- * its number.
- *
- * If @major > 0 this function will attempt to reserve a device with the given
- * major number and will return zero on success.
- *
- * Returns a -ve errno on failure.
- *
- * The name of this device has nothing to do with the name of the device in
- * /dev. It only helps to keep track of the different owners of devices. If
- * your module name has only one type of devices it's ok to use e.g. the name
- * of the module here.
- */
-int __register_chrdev(unsigned int major, unsigned int baseminor,
-		      unsigned int count, const char *name,
-		      const struct file_operations *fops)
-{
-	struct char_device_struct *cd;
-	struct cdev *cdev;
-	int err = -ENOMEM;
-
-	cd = __register_chrdev_region(major, baseminor, count, name);
-	if (IS_ERR(cd))
-		return PTR_ERR(cd);
-
-	cdev = cdev_alloc();
-	if (!cdev)
-		goto out2;
-
-	cdev->owner = fops->owner;
-	cdev->ops = fops;
-	kobject_set_name(&cdev->kobj, "%s", name);
-
-	err = cdev_add(cdev, MKDEV(cd->major, baseminor), count);
-	if (err)
-		goto out;
-
-	cd->cdev = cdev;
-
-	return major ? 0 : cd->major;
-out:
-	kobject_put(&cdev->kobj);
-out2:
-	kfree(__unregister_chrdev_region(cd->major, baseminor, count));
-	return err;
-}
-
-/**
- * unregister_chrdev_region() - return a range of device numbers
- * @from: the first in the range of numbers to unregister
- * @count: the number of device numbers to unregister
- *
- * This function will unregister a range of @count device numbers,
- * starting with @from.  The caller should normally be the one who
- * allocated those numbers in the first place...
- */
-void unregister_chrdev_region(dev_t from, unsigned count)
-{
-	dev_t to = from + count;
-	dev_t n, next;
-
-	for (n = from; n < to; n = next) {
-		next = MKDEV(MAJOR(n)+1, 0);
-		if (next > to)
-			next = to;
-		kfree(__unregister_chrdev_region(MAJOR(n), MINOR(n), next - n));
-	}
-}
-
-/**
- * __unregister_chrdev - unregister and destroy a cdev
- * @major: major device number
- * @baseminor: first of the range of minor numbers
- * @count: the number of minor numbers this cdev is occupying
- * @name: name of this range of devices
- *
- * Unregister and destroy the cdev occupying the region described by
- * @major, @baseminor and @count.  This function undoes what
- * __register_chrdev() did.
- */
-void __unregister_chrdev(unsigned int major, unsigned int baseminor,
-			 unsigned int count, const char *name)
-{
-	struct char_device_struct *cd;
-
-	cd = __unregister_chrdev_region(major, baseminor, count);
-	if (cd && cd->cdev)
-		cdev_del(cd->cdev);
-	kfree(cd);
-}
-
-static DEFINE_SPINLOCK(cdev_lock);
-
-static struct kobject *cdev_get(struct cdev *p)
-{
-	struct module *owner = p->owner;
-	struct kobject *kobj;
-
-	if (owner && !try_module_get(owner))
-		return NULL;
-	kobj = kobject_get(&p->kobj);
-	if (!kobj)
-		module_put(owner);
-	return kobj;
-}
-
-void cdev_put(struct cdev *p)
-{
-	if (p) {
-		struct module *owner = p->owner;
-		kobject_put(&p->kobj);
-		module_put(owner);
-	}
-}
-
-/*
- * Called every time a character special file is opened
- */
-static int chrdev_open(struct inode *inode, struct file *filp)
-{
-	struct cdev *p;
-	struct cdev *new = NULL;
-	int ret = 0;
-
-	spin_lock(&cdev_lock);
-	p = inode->i_cdev;
-	if (!p) {
-		struct kobject *kobj;
-		int idx;
-		spin_unlock(&cdev_lock);
-		kobj = kobj_lookup(cdev_map, inode->i_rdev, &idx);
-		if (!kobj)
-			return -ENXIO;
-		new = container_of(kobj, struct cdev, kobj);
-		spin_lock(&cdev_lock);
-		/* Check i_cdev again in case somebody beat us to it while
-		   we dropped the lock. */
-		p = inode->i_cdev;
-		if (!p) {
-			inode->i_cdev = p = new;
-			list_add(&inode->i_devices, &p->list);
-			new = NULL;
-		} else if (!cdev_get(p))
-			ret = -ENXIO;
-	} else if (!cdev_get(p))
-		ret = -ENXIO;
-	spin_unlock(&cdev_lock);
-	cdev_put(new);
-	if (ret)
-		return ret;
-
-	ret = -ENXIO;
-	filp->f_op = fops_get(p->ops);
-	if (!filp->f_op)
-		goto out_cdev_put;
-
-	if (filp->f_op->open) {
-		ret = filp->f_op->open(inode, filp);
-		if (ret)
-			goto out_cdev_put;
-	}
-
-	return 0;
-
- out_cdev_put:
-	cdev_put(p);
-	return ret;
-}
-
-void cd_forget(struct inode *inode)
-{
-	spin_lock(&cdev_lock);
-	list_del_init(&inode->i_devices);
-	inode->i_cdev = NULL;
-	spin_unlock(&cdev_lock);
-}
-
-static void cdev_purge(struct cdev *cdev)
-{
-	spin_lock(&cdev_lock);
-	while (!list_empty(&cdev->list)) {
-		struct inode *inode;
-		inode = container_of(cdev->list.next, struct inode, i_devices);
-		list_del_init(&inode->i_devices);
-		inode->i_cdev = NULL;
-	}
-	spin_unlock(&cdev_lock);
-}
-
-/*
- * Dummy default file-operations: the only thing this does
- * is contain the open that then fills in the correct operations
- * depending on the special file...
- */
-const struct file_operations def_chr_fops = {
-	.open = chrdev_open,
-	.llseek = noop_llseek,
-};
-
-static struct kobject *exact_match(dev_t dev, int *part, void *data)
-{
-	struct cdev *p = data;
-	return &p->kobj;
-}
-
-static int exact_lock(dev_t dev, void *data)
-{
-	struct cdev *p = data;
-	return cdev_get(p) ? 0 : -1;
-}
-
-/**
- * cdev_add() - add a char device to the system
- * @p: the cdev structure for the device
- * @dev: the first device number for which this device is responsible
- * @count: the number of consecutive minor numbers corresponding to this
- *         device
- *
- * cdev_add() adds the device represented by @p to the system, making it
- * live immediately.  A negative error code is returned on failure.
- */
-int cdev_add(struct cdev *p, dev_t dev, unsigned count)
-{
-	p->dev = dev;
-	p->count = count;
-	return kobj_map(cdev_map, dev, count, NULL, exact_match, exact_lock, p);
-}
-
-static void cdev_unmap(dev_t dev, unsigned count)
-{
-	kobj_unmap(cdev_map, dev, count);
-}
-
-/**
- * cdev_del() - remove a cdev from the system
- * @p: the cdev structure to be removed
- *
- * cdev_del() removes @p from the system, possibly freeing the structure
- * itself.
- */
-void cdev_del(struct cdev *p)
-{
-	cdev_unmap(p->dev, p->count);
-	kobject_put(&p->kobj);
-}
-
-
-static void cdev_default_release(struct kobject *kobj)
-{
-	struct cdev *p = container_of(kobj, struct cdev, kobj);
-	cdev_purge(p);
-}
-
-static void cdev_dynamic_release(struct kobject *kobj)
-{
-	struct cdev *p = container_of(kobj, struct cdev, kobj);
-	cdev_purge(p);
-	kfree(p);
-}
-
-static struct kobj_type ktype_cdev_default = {
-	.release	= cdev_default_release,
-};
-
-static struct kobj_type ktype_cdev_dynamic = {
-	.release	= cdev_dynamic_release,
-};
-
-/**
- * cdev_alloc() - allocate a cdev structure
- *
- * Allocates and returns a cdev structure, or NULL on failure.
- */
-struct cdev *cdev_alloc(void)
-{
-	struct cdev *p = kzalloc(sizeof(struct cdev), GFP_KERNEL);
-	if (p) {
-		INIT_LIST_HEAD(&p->list);
-		kobject_init(&p->kobj, &ktype_cdev_dynamic);
-	}
-	return p;
-}
-
-/**
- * cdev_init() - initialize a cdev structure
- * @cdev: the structure to initialize
- * @fops: the file_operations for this device
- *
- * Initializes @cdev, remembering @fops, making it ready to add to the
- * system with cdev_add().
- */
-void cdev_init(struct cdev *cdev, const struct file_operations *fops)
-{
-	memset(cdev, 0, sizeof *cdev);
-	INIT_LIST_HEAD(&cdev->list);
-	kobject_init(&cdev->kobj, &ktype_cdev_default);
-	cdev->ops = fops;
-}
-
-static struct kobject *base_probe(dev_t dev, int *part, void *data)
-{
-	if (request_module("char-major-%d-%d", MAJOR(dev), MINOR(dev)) > 0)
-		/* Make old-style 2.4 aliases work */
-		request_module("char-major-%d", MAJOR(dev));
-	return NULL;
-}
-
-void __init chrdev_init(void)
-{
-	cdev_map = kobj_map_init(base_probe, &chrdevs_lock);
-	bdi_init(&directly_mappable_cdev_bdi);
-}
-
-
-/* Let modules do char dev stuff */
-EXPORT_SYMBOL(register_chrdev_region);
-EXPORT_SYMBOL(unregister_chrdev_region);
-EXPORT_SYMBOL(alloc_chrdev_region);
-EXPORT_SYMBOL(cdev_init);
-EXPORT_SYMBOL(cdev_alloc);
-EXPORT_SYMBOL(cdev_del);
-EXPORT_SYMBOL(cdev_add);
-EXPORT_SYMBOL(__register_chrdev);
-EXPORT_SYMBOL(__unregister_chrdev);
-EXPORT_SYMBOL(directly_mappable_cdev_bdi);