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, 577 deletions

diff --git a/ANDROID_3.4.5/drivers/base/dd.c b/ANDROID_3.4.5/drivers/base/dd.c
deleted file mode 100644
index 1b1cbb57..00000000
--- a/ANDROID_3.4.5/drivers/base/dd.c
+++ /dev/null
@@ -1,577 +0,0 @@
-/*
- * drivers/base/dd.c - The core device/driver interactions.
- *
- * This file contains the (sometimes tricky) code that controls the
- * interactions between devices and drivers, which primarily includes
- * driver binding and unbinding.
- *
- * All of this code used to exist in drivers/base/bus.c, but was
- * relocated to here in the name of compartmentalization (since it wasn't
- * strictly code just for the 'struct bus_type'.
- *
- * Copyright (c) 2002-5 Patrick Mochel
- * Copyright (c) 2002-3 Open Source Development Labs
- * Copyright (c) 2007-2009 Greg Kroah-Hartman <gregkh@suse.de>
- * Copyright (c) 2007-2009 Novell Inc.
- *
- * This file is released under the GPLv2
- */
-
-#include <linux/device.h>
-#include <linux/delay.h>
-#include <linux/module.h>
-#include <linux/kthread.h>
-#include <linux/wait.h>
-#include <linux/async.h>
-#include <linux/pm_runtime.h>
-
-#include "base.h"
-#include "power/power.h"
-
-/*
- * Deferred Probe infrastructure.
- *
- * Sometimes driver probe order matters, but the kernel doesn't always have
- * dependency information which means some drivers will get probed before a
- * resource it depends on is available.  For example, an SDHCI driver may
- * first need a GPIO line from an i2c GPIO controller before it can be
- * initialized.  If a required resource is not available yet, a driver can
- * request probing to be deferred by returning -EPROBE_DEFER from its probe hook
- *
- * Deferred probe maintains two lists of devices, a pending list and an active
- * list.  A driver returning -EPROBE_DEFER causes the device to be added to the
- * pending list.  A successful driver probe will trigger moving all devices
- * from the pending to the active list so that the workqueue will eventually
- * retry them.
- *
- * The deferred_probe_mutex must be held any time the deferred_probe_*_list
- * of the (struct device*)->p->deferred_probe pointers are manipulated
- */
-static DEFINE_MUTEX(deferred_probe_mutex);
-static LIST_HEAD(deferred_probe_pending_list);
-static LIST_HEAD(deferred_probe_active_list);
-static struct workqueue_struct *deferred_wq;
-
-/**
- * deferred_probe_work_func() - Retry probing devices in the active list.
- */
-static void deferred_probe_work_func(struct work_struct *work)
-{
-	struct device *dev;
-	struct device_private *private;
-	/*
-	 * This block processes every device in the deferred 'active' list.
-	 * Each device is removed from the active list and passed to
-	 * bus_probe_device() to re-attempt the probe.  The loop continues
-	 * until every device in the active list is removed and retried.
-	 *
-	 * Note: Once the device is removed from the list and the mutex is
-	 * released, it is possible for the device get freed by another thread
-	 * and cause a illegal pointer dereference.  This code uses
-	 * get/put_device() to ensure the device structure cannot disappear
-	 * from under our feet.
-	 */
-	mutex_lock(&deferred_probe_mutex);
-	while (!list_empty(&deferred_probe_active_list)) {
-		private = list_first_entry(&deferred_probe_active_list,
-					typeof(*dev->p), deferred_probe);
-		dev = private->device;
-		list_del_init(&private->deferred_probe);
-
-		get_device(dev);
-
-		/*
-		 * Drop the mutex while probing each device; the probe path may
-		 * manipulate the deferred list
-		 */
-		mutex_unlock(&deferred_probe_mutex);
-		dev_dbg(dev, "Retrying from deferred list\n");
-		bus_probe_device(dev);
-		mutex_lock(&deferred_probe_mutex);
-
-		put_device(dev);
-	}
-	mutex_unlock(&deferred_probe_mutex);
-}
-static DECLARE_WORK(deferred_probe_work, deferred_probe_work_func);
-
-static void driver_deferred_probe_add(struct device *dev)
-{
-	mutex_lock(&deferred_probe_mutex);
-	if (list_empty(&dev->p->deferred_probe)) {
-		dev_dbg(dev, "Added to deferred list\n");
-		list_add(&dev->p->deferred_probe, &deferred_probe_pending_list);
-	}
-	mutex_unlock(&deferred_probe_mutex);
-}
-
-void driver_deferred_probe_del(struct device *dev)
-{
-	mutex_lock(&deferred_probe_mutex);
-	if (!list_empty(&dev->p->deferred_probe)) {
-		dev_dbg(dev, "Removed from deferred list\n");
-		list_del_init(&dev->p->deferred_probe);
-	}
-	mutex_unlock(&deferred_probe_mutex);
-}
-
-static bool driver_deferred_probe_enable = false;
-/**
- * driver_deferred_probe_trigger() - Kick off re-probing deferred devices
- *
- * This functions moves all devices from the pending list to the active
- * list and schedules the deferred probe workqueue to process them.  It
- * should be called anytime a driver is successfully bound to a device.
- */
-static void driver_deferred_probe_trigger(void)
-{
-	if (!driver_deferred_probe_enable)
-		return;
-
-	/*
-	 * A successful probe means that all the devices in the pending list
-	 * should be triggered to be reprobed.  Move all the deferred devices
-	 * into the active list so they can be retried by the workqueue
-	 */
-	mutex_lock(&deferred_probe_mutex);
-	list_splice_tail_init(&deferred_probe_pending_list,
-			      &deferred_probe_active_list);
-	mutex_unlock(&deferred_probe_mutex);
-
-	/*
-	 * Kick the re-probe thread.  It may already be scheduled, but it is
-	 * safe to kick it again.
-	 */
-	queue_work(deferred_wq, &deferred_probe_work);
-}
-
-/**
- * deferred_probe_initcall() - Enable probing of deferred devices
- *
- * We don't want to get in the way when the bulk of drivers are getting probed.
- * Instead, this initcall makes sure that deferred probing is delayed until
- * late_initcall time.
- */
-static int deferred_probe_initcall(void)
-{
-	deferred_wq = create_singlethread_workqueue("deferwq");
-	if (WARN_ON(!deferred_wq))
-		return -ENOMEM;
-
-	driver_deferred_probe_enable = true;
-	driver_deferred_probe_trigger();
-	return 0;
-}
-late_initcall(deferred_probe_initcall);
-
-static void driver_bound(struct device *dev)
-{
-	if (klist_node_attached(&dev->p->knode_driver)) {
-		printk(KERN_WARNING "%s: device %s already bound\n",
-			__func__, kobject_name(&dev->kobj));
-		return;
-	}
-
-	pr_debug("driver: '%s': %s: bound to device '%s'\n", dev_name(dev),
-		 __func__, dev->driver->name);
-
-	klist_add_tail(&dev->p->knode_driver, &dev->driver->p->klist_devices);
-
-	/*
-	 * Make sure the device is no longer in one of the deferred lists and
-	 * kick off retrying all pending devices
-	 */
-	driver_deferred_probe_del(dev);
-	driver_deferred_probe_trigger();
-
-	if (dev->bus)
-		blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
-					     BUS_NOTIFY_BOUND_DRIVER, dev);
-}
-
-static int driver_sysfs_add(struct device *dev)
-{
-	int ret;
-
-	if (dev->bus)
-		blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
-					     BUS_NOTIFY_BIND_DRIVER, dev);
-
-	ret = sysfs_create_link(&dev->driver->p->kobj, &dev->kobj,
-			  kobject_name(&dev->kobj));
-	if (ret == 0) {
-		ret = sysfs_create_link(&dev->kobj, &dev->driver->p->kobj,
-					"driver");
-		if (ret)
-			sysfs_remove_link(&dev->driver->p->kobj,
-					kobject_name(&dev->kobj));
-	}
-	return ret;
-}
-
-static void driver_sysfs_remove(struct device *dev)
-{
-	struct device_driver *drv = dev->driver;
-
-	if (drv) {
-		sysfs_remove_link(&drv->p->kobj, kobject_name(&dev->kobj));
-		sysfs_remove_link(&dev->kobj, "driver");
-	}
-}
-
-/**
- * device_bind_driver - bind a driver to one device.
- * @dev: device.
- *
- * Allow manual attachment of a driver to a device.
- * Caller must have already set @dev->driver.
- *
- * Note that this does not modify the bus reference count
- * nor take the bus's rwsem. Please verify those are accounted
- * for before calling this. (It is ok to call with no other effort
- * from a driver's probe() method.)
- *
- * This function must be called with the device lock held.
- */
-int device_bind_driver(struct device *dev)
-{
-	int ret;
-
-	ret = driver_sysfs_add(dev);
-	if (!ret)
-		driver_bound(dev);
-	return ret;
-}
-EXPORT_SYMBOL_GPL(device_bind_driver);
-
-static atomic_t probe_count = ATOMIC_INIT(0);
-static DECLARE_WAIT_QUEUE_HEAD(probe_waitqueue);
-
-static int really_probe(struct device *dev, struct device_driver *drv)
-{
-	int ret = 0;
-
-	atomic_inc(&probe_count);
-	pr_debug("bus: '%s': %s: probing driver %s with device %s\n",
-		 drv->bus->name, __func__, drv->name, dev_name(dev));
-	WARN_ON(!list_empty(&dev->devres_head));
-
-	dev->driver = drv;
-	if (driver_sysfs_add(dev)) {
-		printk(KERN_ERR "%s: driver_sysfs_add(%s) failed\n",
-			__func__, dev_name(dev));
-		goto probe_failed;
-	}
-
-	if (dev->bus->probe) {
-		ret = dev->bus->probe(dev);
-		if (ret)
-			goto probe_failed;
-	} else if (drv->probe) {
-		ret = drv->probe(dev);
-		if (ret)
-			goto probe_failed;
-	}
-
-	driver_bound(dev);
-	ret = 1;
-	pr_debug("bus: '%s': %s: bound device %s to driver %s\n",
-		 drv->bus->name, __func__, dev_name(dev), drv->name);
-	goto done;
-
-probe_failed:
-	devres_release_all(dev);
-	driver_sysfs_remove(dev);
-	dev->driver = NULL;
-
-	if (ret == -EPROBE_DEFER) {
-		/* Driver requested deferred probing */
-		dev_info(dev, "Driver %s requests probe deferral\n", drv->name);
-		driver_deferred_probe_add(dev);
-	} else if (ret != -ENODEV && ret != -ENXIO) {
-		/* driver matched but the probe failed */
-		printk(KERN_WARNING
-		       "%s: probe of %s failed with error %d\n",
-		       drv->name, dev_name(dev), ret);
-	} else {
-		pr_debug("%s: probe of %s rejects match %d\n",
-		       drv->name, dev_name(dev), ret);
-	}
-	/*
-	 * Ignore errors returned by ->probe so that the next driver can try
-	 * its luck.
-	 */
-	ret = 0;
-done:
-	atomic_dec(&probe_count);
-	wake_up(&probe_waitqueue);
-	return ret;
-}
-
-/**
- * driver_probe_done
- * Determine if the probe sequence is finished or not.
- *
- * Should somehow figure out how to use a semaphore, not an atomic variable...
- */
-int driver_probe_done(void)
-{
-	pr_debug("%s: probe_count = %d\n", __func__,
-		 atomic_read(&probe_count));
-	if (atomic_read(&probe_count))
-		return -EBUSY;
-	return 0;
-}
-
-/**
- * wait_for_device_probe
- * Wait for device probing to be completed.
- */
-void wait_for_device_probe(void)
-{
-	/* wait for the known devices to complete their probing */
-	wait_event(probe_waitqueue, atomic_read(&probe_count) == 0);
-	async_synchronize_full();
-}
-EXPORT_SYMBOL_GPL(wait_for_device_probe);
-
-/**
- * driver_probe_device - attempt to bind device & driver together
- * @drv: driver to bind a device to
- * @dev: device to try to bind to the driver
- *
- * This function returns -ENODEV if the device is not registered,
- * 1 if the device is bound successfully and 0 otherwise.
- *
- * This function must be called with @dev lock held.  When called for a
- * USB interface, @dev->parent lock must be held as well.
- */
-int driver_probe_device(struct device_driver *drv, struct device *dev)
-{
-	int ret = 0;
-
-	if (!device_is_registered(dev))
-		return -ENODEV;
-
-	pr_debug("bus: '%s': %s: matched device %s with driver %s\n",
-		 drv->bus->name, __func__, dev_name(dev), drv->name);
-
-	pm_runtime_get_noresume(dev);
-	pm_runtime_barrier(dev);
-	ret = really_probe(dev, drv);
-	pm_runtime_put_sync(dev);
-
-	return ret;
-}
-
-static int __device_attach(struct device_driver *drv, void *data)
-{
-	struct device *dev = data;
-
-	if (!driver_match_device(drv, dev))
-		return 0;
-
-	return driver_probe_device(drv, dev);
-}
-
-/**
- * device_attach - try to attach device to a driver.
- * @dev: device.
- *
- * Walk the list of drivers that the bus has and call
- * driver_probe_device() for each pair. If a compatible
- * pair is found, break out and return.
- *
- * Returns 1 if the device was bound to a driver;
- * 0 if no matching driver was found;
- * -ENODEV if the device is not registered.
- *
- * When called for a USB interface, @dev->parent lock must be held.
- */
-int device_attach(struct device *dev)
-{
-	int ret = 0;
-
-	device_lock(dev);
-	if (dev->driver) {
-		if (klist_node_attached(&dev->p->knode_driver)) {
-			ret = 1;
-			goto out_unlock;
-		}
-		ret = device_bind_driver(dev);
-		if (ret == 0)
-			ret = 1;
-		else {
-			dev->driver = NULL;
-			ret = 0;
-		}
-	} else {
-		pm_runtime_get_noresume(dev);
-		ret = bus_for_each_drv(dev->bus, NULL, dev, __device_attach);
-		pm_runtime_put_sync(dev);
-	}
-out_unlock:
-	device_unlock(dev);
-	return ret;
-}
-EXPORT_SYMBOL_GPL(device_attach);
-
-static int __driver_attach(struct device *dev, void *data)
-{
-	struct device_driver *drv = data;
-
-	/*
-	 * Lock device and try to bind to it. We drop the error
-	 * here and always return 0, because we need to keep trying
-	 * to bind to devices and some drivers will return an error
-	 * simply if it didn't support the device.
-	 *
-	 * driver_probe_device() will spit a warning if there
-	 * is an error.
-	 */
-
-	if (!driver_match_device(drv, dev))
-		return 0;
-
-	if (dev->parent)	/* Needed for USB */
-		device_lock(dev->parent);
-	device_lock(dev);
-	if (!dev->driver)
-		driver_probe_device(drv, dev);
-	device_unlock(dev);
-	if (dev->parent)
-		device_unlock(dev->parent);
-
-	return 0;
-}
-
-/**
- * driver_attach - try to bind driver to devices.
- * @drv: driver.
- *
- * Walk the list of devices that the bus has on it and try to
- * match the driver with each one.  If driver_probe_device()
- * returns 0 and the @dev->driver is set, we've found a
- * compatible pair.
- */
-int driver_attach(struct device_driver *drv)
-{
-	return bus_for_each_dev(drv->bus, NULL, drv, __driver_attach);
-}
-EXPORT_SYMBOL_GPL(driver_attach);
-
-/*
- * __device_release_driver() must be called with @dev lock held.
- * When called for a USB interface, @dev->parent lock must be held as well.
- */
-static void __device_release_driver(struct device *dev)
-{
-	struct device_driver *drv;
-
-	drv = dev->driver;
-	if (drv) {
-		pm_runtime_get_sync(dev);
-
-		driver_sysfs_remove(dev);
-
-		if (dev->bus)
-			blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
-						     BUS_NOTIFY_UNBIND_DRIVER,
-						     dev);
-
-		pm_runtime_put_sync(dev);
-
-		if (dev->bus && dev->bus->remove)
-			dev->bus->remove(dev);
-		else if (drv->remove)
-			drv->remove(dev);
-		devres_release_all(dev);
-		dev->driver = NULL;
-		klist_remove(&dev->p->knode_driver);
-		if (dev->bus)
-			blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
-						     BUS_NOTIFY_UNBOUND_DRIVER,
-						     dev);
-
-	}
-}
-
-/**
- * device_release_driver - manually detach device from driver.
- * @dev: device.
- *
- * Manually detach device from driver.
- * When called for a USB interface, @dev->parent lock must be held.
- */
-void device_release_driver(struct device *dev)
-{
-	/*
-	 * If anyone calls device_release_driver() recursively from
-	 * within their ->remove callback for the same device, they
-	 * will deadlock right here.
-	 */
-	device_lock(dev);
-	__device_release_driver(dev);
-	device_unlock(dev);
-}
-EXPORT_SYMBOL_GPL(device_release_driver);
-
-/**
- * driver_detach - detach driver from all devices it controls.
- * @drv: driver.
- */
-void driver_detach(struct device_driver *drv)
-{
-	struct device_private *dev_prv;
-	struct device *dev;
-
-	for (;;) {
-		spin_lock(&drv->p->klist_devices.k_lock);
-		if (list_empty(&drv->p->klist_devices.k_list)) {
-			spin_unlock(&drv->p->klist_devices.k_lock);
-			break;
-		}
-		dev_prv = list_entry(drv->p->klist_devices.k_list.prev,
-				     struct device_private,
-				     knode_driver.n_node);
-		dev = dev_prv->device;
-		get_device(dev);
-		spin_unlock(&drv->p->klist_devices.k_lock);
-
-		if (dev->parent)	/* Needed for USB */
-			device_lock(dev->parent);
-		device_lock(dev);
-		if (dev->driver == drv)
-			__device_release_driver(dev);
-		device_unlock(dev);
-		if (dev->parent)
-			device_unlock(dev->parent);
-		put_device(dev);
-	}
-}
-
-/*
- * These exports can't be _GPL due to .h files using this within them, and it
- * might break something that was previously working...
- */
-void *dev_get_drvdata(const struct device *dev)
-{
-	if (dev && dev->p)
-		return dev->p->driver_data;
-	return NULL;
-}
-EXPORT_SYMBOL(dev_get_drvdata);
-
-int dev_set_drvdata(struct device *dev, void *data)
-{
-	int error;
-
-	if (!dev->p) {
-		error = device_private_init(dev);
-		if (error)
-			return error;
-	}
-	dev->p->driver_data = data;
-	return 0;
-}
-EXPORT_SYMBOL(dev_set_drvdata);