1 files changed, 0 insertions, 381 deletions
diff --git a/drivers/staging/i2o/driver.c b/drivers/staging/i2o/driver.c
deleted file mode 100644
index 06119bb3eb5f..000000000000
--- a/drivers/staging/i2o/driver.c
+++ /dev/null
@@ -1,381 +0,0 @@
-/*
- *	Functions to handle I2O drivers (OSMs) and I2O bus type for sysfs
- *
- *	Copyright (C) 2004	Markus Lidel <Markus.Lidel@shadowconnect.com>
- *
- *	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.
- *
- *	Fixes/additions:
- *		Markus Lidel <Markus.Lidel@shadowconnect.com>
- *			initial version.
- */
-
-#include <linux/device.h>
-#include <linux/module.h>
-#include <linux/rwsem.h>
-#include "i2o.h"
-#include <linux/workqueue.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include "core.h"
-
-#define OSM_NAME	"i2o"
-
-/* max_drivers - Maximum I2O drivers (OSMs) which could be registered */
-static unsigned int i2o_max_drivers = I2O_MAX_DRIVERS;
-module_param_named(max_drivers, i2o_max_drivers, uint, 0);
-MODULE_PARM_DESC(max_drivers, "maximum number of OSM's to support");
-
-/* I2O drivers lock and array */
-static spinlock_t i2o_drivers_lock;
-static struct i2o_driver **i2o_drivers;
-
-/**
- *	i2o_bus_match - Tell if I2O device class id matches the class ids of the I2O driver (OSM)
- *	@dev: device which should be verified
- *	@drv: the driver to match against
- *
- *	Used by the bus to check if the driver wants to handle the device.
- *
- *	Returns 1 if the class ids of the driver match the class id of the
- *	device, otherwise 0.
- */
-static int i2o_bus_match(struct device *dev, struct device_driver *drv)
-{
-	struct i2o_device *i2o_dev = to_i2o_device(dev);
-	struct i2o_driver *i2o_drv = to_i2o_driver(drv);
-	struct i2o_class_id *ids = i2o_drv->classes;
-
-	if (ids)
-		while (ids->class_id != I2O_CLASS_END) {
-			if (ids->class_id == i2o_dev->lct_data.class_id)
-				return 1;
-			ids++;
-		}
-	return 0;
-};
-
-/* I2O bus type */
-struct bus_type i2o_bus_type = {
-	.name = "i2o",
-	.match = i2o_bus_match,
-	.dev_groups = i2o_device_groups,
-};
-
-/**
- *	i2o_driver_register - Register a I2O driver (OSM) in the I2O core
- *	@drv: I2O driver which should be registered
- *
- *	Registers the OSM drv in the I2O core and creates an event queues if
- *	necessary.
- *
- *	Returns 0 on success or negative error code on failure.
- */
-int i2o_driver_register(struct i2o_driver *drv)
-{
-	struct i2o_controller *c;
-	int i;
-	int rc = 0;
-	unsigned long flags;
-
-	osm_debug("Register driver %s\n", drv->name);
-
-	if (drv->event) {
-		drv->event_queue = alloc_workqueue("%s", WQ_MEM_RECLAIM, 1,
-						   drv->name);
-		if (!drv->event_queue) {
-			osm_err("Could not initialize event queue for driver "
-				"%s\n", drv->name);
-			return -EFAULT;
-		}
-		osm_debug("Event queue initialized for driver %s\n", drv->name);
-	} else
-		drv->event_queue = NULL;
-
-	drv->driver.name = drv->name;
-	drv->driver.bus = &i2o_bus_type;
-
-	spin_lock_irqsave(&i2o_drivers_lock, flags);
-
-	for (i = 0; i2o_drivers[i]; i++)
-		if (i >= i2o_max_drivers) {
-			osm_err("too many drivers registered, increase max_drivers\n");
-			spin_unlock_irqrestore(&i2o_drivers_lock, flags);
-			rc = -EFAULT;
-			goto out;
-		}
-
-	drv->context = i;
-	i2o_drivers[i] = drv;
-
-	spin_unlock_irqrestore(&i2o_drivers_lock, flags);
-
-	osm_debug("driver %s gets context id %d\n", drv->name, drv->context);
-
-	list_for_each_entry(c, &i2o_controllers, list) {
-		struct i2o_device *i2o_dev;
-
-		i2o_driver_notify_controller_add(drv, c);
-		list_for_each_entry(i2o_dev, &c->devices, list)
-		    i2o_driver_notify_device_add(drv, i2o_dev);
-	}
-
-	rc = driver_register(&drv->driver);
-	if (rc)
-		goto out;
-
-	return 0;
-out:
-	if (drv->event_queue) {
-		destroy_workqueue(drv->event_queue);
-		drv->event_queue = NULL;
-	}
-
-	return rc;
-};
-
-/**
- *	i2o_driver_unregister - Unregister a I2O driver (OSM) from the I2O core
- *	@drv: I2O driver which should be unregistered
- *
- *	Unregisters the OSM drv from the I2O core and cleanup event queues if
- *	necessary.
- */
-void i2o_driver_unregister(struct i2o_driver *drv)
-{
-	struct i2o_controller *c;
-	unsigned long flags;
-
-	osm_debug("unregister driver %s\n", drv->name);
-
-	driver_unregister(&drv->driver);
-
-	list_for_each_entry(c, &i2o_controllers, list) {
-		struct i2o_device *i2o_dev;
-
-		list_for_each_entry(i2o_dev, &c->devices, list)
-		    i2o_driver_notify_device_remove(drv, i2o_dev);
-
-		i2o_driver_notify_controller_remove(drv, c);
-	}
-
-	spin_lock_irqsave(&i2o_drivers_lock, flags);
-	i2o_drivers[drv->context] = NULL;
-	spin_unlock_irqrestore(&i2o_drivers_lock, flags);
-
-	if (drv->event_queue) {
-		destroy_workqueue(drv->event_queue);
-		drv->event_queue = NULL;
-		osm_debug("event queue removed for %s\n", drv->name);
-	}
-};
-
-/**
- *	i2o_driver_dispatch - dispatch an I2O reply message
- *	@c: I2O controller of the message
- *	@m: I2O message number
- *
- *	The reply is delivered to the driver from which the original message
- *	was. This function is only called from interrupt context.
- *
- *	Returns 0 on success and the message should not be flushed. Returns > 0
- *	on success and if the message should be flushed afterwords. Returns
- *	negative error code on failure (the message will be flushed too).
- */
-int i2o_driver_dispatch(struct i2o_controller *c, u32 m)
-{
-	struct i2o_driver *drv;
-	struct i2o_message *msg = i2o_msg_out_to_virt(c, m);
-	u32 context = le32_to_cpu(msg->u.s.icntxt);
-	unsigned long flags;
-
-	if (unlikely(context >= i2o_max_drivers)) {
-		osm_warn("%s: Spurious reply to unknown driver %d\n", c->name,
-			 context);
-		return -EIO;
-	}
-
-	spin_lock_irqsave(&i2o_drivers_lock, flags);
-	drv = i2o_drivers[context];
-	spin_unlock_irqrestore(&i2o_drivers_lock, flags);
-
-	if (unlikely(!drv)) {
-		osm_warn("%s: Spurious reply to unknown driver %d\n", c->name,
-			 context);
-		return -EIO;
-	}
-
-	if ((le32_to_cpu(msg->u.head[1]) >> 24) == I2O_CMD_UTIL_EVT_REGISTER) {
-		struct i2o_device *dev, *tmp;
-		struct i2o_event *evt;
-		u16 size;
-		u16 tid = le32_to_cpu(msg->u.head[1]) & 0xfff;
-
-		osm_debug("event received from device %d\n", tid);
-
-		if (!drv->event)
-			return -EIO;
-
-		/* cut of header from message size (in 32-bit words) */
-		size = (le32_to_cpu(msg->u.head[0]) >> 16) - 5;
-
-		evt = kzalloc(size * 4 + sizeof(*evt), GFP_ATOMIC);
-		if (!evt)
-			return -ENOMEM;
-
-		evt->size = size;
-		evt->tcntxt = le32_to_cpu(msg->u.s.tcntxt);
-		evt->event_indicator = le32_to_cpu(msg->body[0]);
-		memcpy(&evt->data, &msg->body[1], size * 4);
-
-		list_for_each_entry_safe(dev, tmp, &c->devices, list)
-		    if (dev->lct_data.tid == tid) {
-			evt->i2o_dev = dev;
-			break;
-		}
-
-		INIT_WORK(&evt->work, drv->event);
-		queue_work(drv->event_queue, &evt->work);
-		return 1;
-	}
-
-	if (unlikely(!drv->reply)) {
-		osm_debug("%s: Reply to driver %s, but no reply function defined!\n",
-			c->name, drv->name);
-		return -EIO;
-	}
-
-	return drv->reply(c, m, msg);
-}
-
-/**
- *	i2o_driver_notify_controller_add_all - Send notify of added controller
- *	@c: newly added controller
- *
- *	Send notifications to all registered drivers that a new controller was
- *	added.
- */
-void i2o_driver_notify_controller_add_all(struct i2o_controller *c)
-{
-	int i;
-	struct i2o_driver *drv;
-
-	for (i = 0; i < i2o_max_drivers; i++) {
-		drv = i2o_drivers[i];
-
-		if (drv)
-			i2o_driver_notify_controller_add(drv, c);
-	}
-}
-
-/**
- *	i2o_driver_notify_controller_remove_all - Send notify of removed controller
- *	@c: controller that is being removed
- *
- *	Send notifications to all registered drivers that a controller was
- *	removed.
- */
-void i2o_driver_notify_controller_remove_all(struct i2o_controller *c)
-{
-	int i;
-	struct i2o_driver *drv;
-
-	for (i = 0; i < i2o_max_drivers; i++) {
-		drv = i2o_drivers[i];
-
-		if (drv)
-			i2o_driver_notify_controller_remove(drv, c);
-	}
-}
-
-/**
- *	i2o_driver_notify_device_add_all - Send notify of added device
- *	@i2o_dev: newly added I2O device
- *
- *	Send notifications to all registered drivers that a device was added.
- */
-void i2o_driver_notify_device_add_all(struct i2o_device *i2o_dev)
-{
-	int i;
-	struct i2o_driver *drv;
-
-	for (i = 0; i < i2o_max_drivers; i++) {
-		drv = i2o_drivers[i];
-
-		if (drv)
-			i2o_driver_notify_device_add(drv, i2o_dev);
-	}
-}
-
-/**
- *	i2o_driver_notify_device_remove_all - Send notify of removed device
- *	@i2o_dev: device that is being removed
- *
- *	Send notifications to all registered drivers that a device was removed.
- */
-void i2o_driver_notify_device_remove_all(struct i2o_device *i2o_dev)
-{
-	int i;
-	struct i2o_driver *drv;
-
-	for (i = 0; i < i2o_max_drivers; i++) {
-		drv = i2o_drivers[i];
-
-		if (drv)
-			i2o_driver_notify_device_remove(drv, i2o_dev);
-	}
-}
-
-/**
- *	i2o_driver_init - initialize I2O drivers (OSMs)
- *
- *	Registers the I2O bus and allocate memory for the array of OSMs.
- *
- *	Returns 0 on success or negative error code on failure.
- */
-int __init i2o_driver_init(void)
-{
-	int rc = 0;
-
-	spin_lock_init(&i2o_drivers_lock);
-
-	if ((i2o_max_drivers < 2) || (i2o_max_drivers > 64)) {
-		osm_warn("max_drivers set to %d, but must be >=2 and <= 64\n",
-			 i2o_max_drivers);
-		i2o_max_drivers = I2O_MAX_DRIVERS;
-	}
-	osm_info("max drivers = %d\n", i2o_max_drivers);
-
-	i2o_drivers =
-	    kcalloc(i2o_max_drivers, sizeof(*i2o_drivers), GFP_KERNEL);
-	if (!i2o_drivers)
-		return -ENOMEM;
-
-	rc = bus_register(&i2o_bus_type);
-
-	if (rc < 0)
-		kfree(i2o_drivers);
-
-	return rc;
-};
-
-/**
- *	i2o_driver_exit - clean up I2O drivers (OSMs)
- *
- *	Unregisters the I2O bus and frees driver array.
- */
-void i2o_driver_exit(void)
-{
-	bus_unregister(&i2o_bus_type);
-	kfree(i2o_drivers);
-};
-
-EXPORT_SYMBOL(i2o_driver_register);
-EXPORT_SYMBOL(i2o_driver_unregister);
-EXPORT_SYMBOL(i2o_driver_notify_controller_add_all);
-EXPORT_SYMBOL(i2o_driver_notify_controller_remove_all);
-EXPORT_SYMBOL(i2o_driver_notify_device_add_all);
-EXPORT_SYMBOL(i2o_driver_notify_device_remove_all);