index : openslx/kernel-qcow2-linux.git	kernel-qcow2 kernel-qcow2-linux-4.18.x-centos kernel-qcow2-linux-4.19.y master
	In-kernel qcow2 (Kernel part)	OpenSLX

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log msg author committer range

path: root/drivers/block/Kconfig

	Commit message (Expand)	Author	Age	Files	Lines
...
*	Merge git://git.infradead.org/users/willy/linux-nvme	Linus Torvalds	2012-01-18	1	-0/+11
|\
| *	NVMe: New driver	Matthew Wilcox	2011-11-04	1	-0/+11
* |	block: Add driver for Micron RealSSD pcie flash cards	Sam Bradshaw	2011-11-05	1	-0/+2
|/
*	Merge branch 'stable/for-jens' of git://git.kernel.org/pub/scm/linux/kernel/g...	Jens Axboe	2011-08-09	1	-1/+1
|\
| *	xen/blkback: Make description more obvious.	Konrad Rzeszutek Wilk	2011-08-09	1	-1/+1
* |	loop: add BLK_DEV_LOOP_MIN_COUNT=%i to allow distros 0 pre-allocated loop dev...	Kay Sievers	2011-07-31	1	-0/+15
|/
*	xen/blkback: Flesh out the description in the Kconfig.	Konrad Rzeszutek Wilk	2011-05-12	1	-0/+13
*	xen/blkback: Move it from drivers/xen to drivers/block	Konrad Rzeszutek Wilk	2011-04-18	1	-0/+8
*	xen: separate out frontend xenbus	Ian Campbell	2011-01-05	1	-0/+1
*	rbd: introduce rados block device (rbd), based on libceph	Yehuda Sadeh	2010-10-21	1	-0/+17
*	paride: fix menu indentation	Randy Dunlap	2010-05-11	1	-11/+11
*	The DRBD driver	Philipp Reisner	2009-10-01	1	-0/+2
*	osdblk: a Linux block device for OSD objects	Jeff Garzik	2009-06-24	1	-0/+16
*	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jik...	Linus Torvalds	2009-06-14	1	-1/+1
|\
| *	trivial: Kconfig: .ko is normally not included in module names	Pavel Machek	2009-06-12	1	-1/+1
* |	Merge branch 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze	Linus Torvalds	2009-06-12	1	-1/+1
|\ \ | |/ |/|
| *	microblaze: Kconfig: Enable drivers for Microblaze	Michal Simek	2009-05-21	1	-1/+1
* |	mg_disk: fix dependency on libata	Bartlomiej Zolnierkiewicz	2009-04-28	1	-1/+1
|/
*	mflash: initial support	unsik Kim	2009-04-07	1	-0/+17
*	m68k: mac - Add SWIM floppy support	Laurent Vivier	2009-03-26	1	-0/+7
*	Create/use more directory structure in the Documentation/ tree.	Randy Dunlap	2008-11-14	1	-14/+15
*	update the BLK_DEV_HD help text	Adrian Bunk	2008-07-16	1	-19/+7
*	move ide/legacy/hd.c to drivers/block/	Adrian Bunk	2008-07-16	1	-0/+24
*	The ps2esdi driver was marked as BROKEN more than two years ago due to being	Adrian Bunk	2008-03-17	1	-10/+0
*	rd: support XIP	Nick Piggin	2008-02-08	1	-0/+10
*	rewrite rd	Nick Piggin	2008-02-08	1	-11/+1
*	virtio: Put the virtio under the virtualization menu	Anthony Liguori	2008-02-04	1	-1/+2
*	cdrom: Add support for Sega Dreamcast GD-ROM.	Adrian McMenamin	2008-01-28	1	-0/+11
*	Block driver using virtio.	Rusty Russell	2007-10-23	1	-0/+6
*	remove duplicate MMAPPER Kconfig option	Adrian Bunk	2007-10-20	1	-17/+0
*	fix typos in drivers/block/Kconfig	Patrick Ringl	2007-10-19	1	-2/+2
*	[S390] Remove obsolete recommendation for 8M ramdisk size.	Robert P. J. Day	2007-10-12	1	-2/+1
*	Introduce CONFIG_CHECK_SIGNATURE	Geert Uytterhoeven	2007-08-23	1	-0/+1
*	Add some help texts to recently-introduced kconfig items	Jan Engelhardt	2007-08-18	1	-0/+6
*	xen: add virtual block device driver.	Jeremy Fitzhardinge	2007-07-18	1	-0/+9
*	Add support for Xilinx SystemACE CompactFlash interface	Grant Likely	2007-07-17	1	-0/+6
*	Merge branch 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block	Linus Torvalds	2007-07-16	1	-11/+0
|\
| *	more ACSI removal	Adrian Bunk	2007-07-16	1	-11/+0
* |	Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sp...	Linus Torvalds	2007-07-16	1	-0/+7
|\ \
| * |	[SPARC64]: Add Sun LDOM virtual disk driver.	David S. Miller	2007-07-16	1	-0/+7
| |/
* /	Introduce CONFIG_VIRT_TO_BUS	Stephen Rothwell	2007-07-16	1	-1/+1
|/
*	Make a "menuconfig" out of the Kconfig objects "menu, ..., endmenu",	Jan Engelhardt	2007-07-10	1	-5/+6
*	[PATCH] Remove acsi.c	Jens Axboe	2007-07-10	1	-32/+1
*	[S390] Kconfig: use common Kconfig files for s390.	Martin Schwidefsky	2007-05-10	1	-2/+2
*	[PATCH] initramfs should not depend on CONFIG_BLOCK	Dimitri Gorokhovik	2007-03-06	1	-16/+0
*	[PATCH] disable init/initramfs.c	Jean-Paul Saman	2007-02-11	1	-1/+3
*	[PATCH] remove the broken BLK_DEV_SWIM_IOP driver	Adrian Bunk	2006-12-13	1	-7/+0
*	[PATCH] pktcdvd: make procfs interface optional	Thomas Maier	2006-12-08	1	-5/+9
*	Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6	Linus Torvalds	2006-12-07	1	-0/+1
|\
| *	[CRYPTO] cryptoloop: Select CRYPTO_CBC	Herbert Xu	2006-12-07	1	-0/+1

• [prev]
• [next]

generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-24 05:54:40 +0200

/*
 * pcmcia_ioctl.c -- ioctl interface for cardmgr and cardctl
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * The initial developer of the original code is David A. Hinds
 * <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
 * are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
 *
 * (C) 1999		David A. Hinds
 * (C) 2003 - 2004	Dominik Brodowski
 */

/*
 * This file will go away soon.
 */


#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/major.h>
#include <linux/errno.h>
#include <linux/ioctl.h>
#include <linux/proc_fs.h>
#include <linux/poll.h>
#include <linux/pci.h>
#include <linux/workqueue.h>

#define IN_CARD_SERVICES
#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/ds.h>
#include <pcmcia/ss.h>

#include "cs_internal.h"
#include "ds_internal.h"

static int major_dev = -1;


/* Device user information */
#define MAX_EVENTS	32
#define USER_MAGIC	0x7ea4
#define CHECK_USER(u) \
    (((u) == NULL) || ((u)->user_magic != USER_MAGIC))

typedef struct user_info_t {
	u_int			user_magic;
	int			event_head, event_tail;
	event_t			event[MAX_EVENTS];
	struct user_info_t	*next;
	struct pcmcia_socket	*socket;
} user_info_t;


#ifdef DEBUG
extern int ds_pc_debug;
#define cs_socket_name(skt)    ((skt)->dev.class_id)

#define ds_dbg(lvl, fmt, arg...) do {		\
	if (ds_pc_debug >= lvl)				\
		printk(KERN_DEBUG "ds: " fmt , ## arg);		\
} while (0)
#else
#define ds_dbg(lvl, fmt, arg...) do { } while (0)
#endif

static struct pcmcia_device *get_pcmcia_device(struct pcmcia_socket *s,
						unsigned int function)
{
	struct pcmcia_device *p_dev = NULL;
	unsigned long flags;

	spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
	list_for_each_entry(p_dev, &s->devices_list, socket_device_list) {
		if (p_dev->func == function) {
			spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
			return pcmcia_get_dev(p_dev);
		}
	}
	spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
	return NULL;
}

/* backwards-compatible accessing of driver --- by name! */

static struct pcmcia_driver *get_pcmcia_driver(dev_info_t *dev_info)
{
	struct device_driver *drv;
	struct pcmcia_driver *p_drv;

	drv = driver_find((char *) dev_info, &pcmcia_bus_type);
	if (!drv)
		return NULL;

	p_drv = container_of(drv, struct pcmcia_driver, drv);

	return (p_drv);
}


#ifdef CONFIG_PROC_FS
static struct proc_dir_entry *proc_pccard = NULL;

static int proc_read_drivers_callback(struct device_driver *driver, void *d)
{
	char **p = d;
	struct pcmcia_driver *p_drv = container_of(driver,
						   struct pcmcia_driver, drv);

	*p += sprintf(*p, "%-24.24s 1 %d\n", p_drv->drv.name,
#ifdef CONFIG_MODULE_UNLOAD
		      (p_drv->owner) ? module_refcount(p_drv->owner) : 1
#else
		      1
#endif
	);
	d = (void *) p;

	return 0;
}

static int proc_read_drivers(char *buf, char **start, off_t pos,
			     int count, int *eof, void *data)
{
	char *p = buf;

	bus_for_each_drv(&pcmcia_bus_type, NULL,
			 (void *) &p, proc_read_drivers_callback);

	return (p - buf);
}
#endif

/*======================================================================

    These manage a ring buffer of events pending for one user process

======================================================================*/


static int queue_empty(user_info_t *user)
{
    return (user->event_head == user->event_tail);
}

static event_t get_queued_event(user_info_t *user)
{
    user->event_tail = (user->event_tail+1) % MAX_EVENTS;
    return user->event[user->event_tail];
}

static void queue_event(user_info_t *user, event_t event)
{
    user->event_head = (user->event_head+1) % MAX_EVENTS;
    if (user->event_head == user->event_tail)
	user->event_tail = (user->event_tail+1) % MAX_EVENTS;
    user->event[user->event_head] = event;
}

void handle_event(struct pcmcia_socket *s, event_t event)
{
    user_info_t *user;
    for (user = s->user; user; user = user->next)
	queue_event(user, event);
    wake_up_interruptible(&s->queue);
}


/*======================================================================

    bind_request() and bind_device() are merged by now. Register_client()
    is called right at the end of bind_request(), during the driver's
    ->attach() call. Individual descriptions:

    bind_request() connects a socket to a particular client driver.
    It looks up the specified device ID in the list of registered
    drivers, binds it to the socket, and tries to create an instance
    of the device.  unbind_request() deletes a driver instance.

    Bind_device() associates a device driver with a particular socket.
    It is normally called by Driver Services after it has identified
    a newly inserted card.  An instance of that driver will then be
    eligible to register as a client of this socket.

    Register_client() uses the dev_info_t handle to match the
    caller with a socket.  The driver must have already been bound
    to a socket with bind_device() -- in fact, bind_device()
    allocates the client structure that will be used.

======================================================================*/

static int bind_request(struct pcmcia_socket *s, bind_info_t *bind_info)
{
	struct pcmcia_driver *p_drv;
	struct pcmcia_device *p_dev;
	int ret = 0;
	unsigned long flags;

	s = pcmcia_get_socket(s);
	if (!s)
		return -EINVAL;

	ds_dbg(2, "bind_request(%d, '%s')\n", s->sock,
	       (char *)bind_info->dev_info);

	p_drv = get_pcmcia_driver(&bind_info->dev_info);
	if (!p_drv) {
		ret = -EINVAL;
		goto err_put;
	}

	if (!try_module_get(p_drv->owner)) {
		ret = -EINVAL;
		goto err_put_driver;
	}

	spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
        list_for_each_entry(p_dev, &s->devices_list, socket_device_list) {
		if (p_dev->func == bind_info->function) {
			if ((p_dev->dev.driver == &p_drv->drv)) {
				if (p_dev->cardmgr) {
					/* if there's already a device
					 * registered, and it was registered
					 * by userspace before, we need to
					 * return the "instance". */
					spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
					bind_info->instance = p_dev->instance;
					ret = -EBUSY;
					goto err_put_module;
				} else {
					/* the correct driver managed to bind
					 * itself magically to the correct
					 * device. */
					spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
					p_dev->cardmgr = p_drv;
					ret = 0;
					goto err_put_module;
				}
			} else if (!p_dev->dev.driver) {
				/* there's already a device available where
				 * no device has been bound to yet. So we don't
				 * need to register a device! */
				spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
				goto rescan;
			}
		}
	}
	spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);

	p_dev = pcmcia_device_add(s, bind_info->function);
	if (!p_dev) {
		ret = -EIO;
		goto err_put_module;
	}

rescan:
	p_dev->cardmgr = p_drv;

	/* if a driver is already running, we can abort */
	if (p_dev->dev.driver)
		goto err_put_module;

	/*
	 * Prevent this racing with a card insertion.
	 */
	mutex_lock(&s->skt_mutex);
	bus_rescan_devices(&pcmcia_bus_type);
	mutex_unlock(&s->skt_mutex);

	/* check whether the driver indeed matched. I don't care if this
	 * is racy or not, because it can only happen on cardmgr access
	 * paths...
	 */
	if (!(p_dev->dev.driver == &p_drv->drv))
		p_dev->cardmgr = NULL;

 err_put_module:
	module_put(p_drv->owner);
 err_put_driver:
	put_driver(&p_drv->drv);
 err_put:
	pcmcia_put_socket(s);

	return (ret);
} /* bind_request */

#ifdef CONFIG_CARDBUS

static struct pci_bus *pcmcia_lookup_bus(struct pcmcia_socket *s)
{
	if (!s || !(s->state & SOCKET_CARDBUS))
		return NULL;

	return s->cb_dev->subordinate;
}
#endif

static int get_device_info(struct pcmcia_socket *s, bind_info_t *bind_info, int first)
{
	dev_node_t *node;
	struct pcmcia_device *p_dev;
	unsigned long flags;
	int ret = 0;

#ifdef CONFIG_CARDBUS
	/*
	 * Some unbelievably ugly code to associate the PCI cardbus
	 * device and its driver with the PCMCIA "bind" information.
	 */
	{
		struct pci_bus *bus;

		bus = pcmcia_lookup_bus(s);
		if (bus) {
			struct list_head *list;
			struct pci_dev *dev = NULL;

			list = bus->devices.next;
			while (list != &bus->devices) {
				struct pci_dev *pdev = pci_dev_b(list);
				list = list->next;

				if (first) {
					dev = pdev;
					break;
				}

				/* Try to handle "next" here some way? */
			}
			if (dev && dev->driver) {
				strlcpy(bind_info->name, dev->driver->name, DEV_NAME_LEN);
				bind_info->major = 0;
				bind_info->minor = 0;
				bind_info->next = NULL;
				return 0;
			}
		}
	}
#endif

	spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
	list_for_each_entry(p_dev, &s->devices_list, socket_device_list) {
		if (p_dev->func == bind_info->function) {
			p_dev = pcmcia_get_dev(p_dev);
			if (!p_dev)
				continue;
			goto found;
		}
	}
	spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
	return -ENODEV;

 found:
	spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);

	if ((!p_dev->instance) ||
	    (p_dev->instance->state & DEV_CONFIG_PENDING)) {
		ret = -EAGAIN;
		goto err_put;
	}

	if (first)
		node = p_dev->instance->dev;
	else
		for (node = p_dev->instance->dev; node; node = node->next)
			if (node == bind_info->next)
				break;
	if (!node) {
		ret = -ENODEV;
		goto err_put;
	}

	strlcpy(bind_info->name, node->dev_name, DEV_NAME_LEN);
	bind_info->major = node->major;
	bind_info->minor = node->minor;
	bind_info->next = node->next;

 err_put:
	pcmcia_put_dev(p_dev);
	return (ret);
} /* get_device_info */


static int ds_open(struct inode *inode, struct file *file)
{
    socket_t i = iminor(inode);
    struct pcmcia_socket *s;
    user_info_t *user;
    static int warning_printed = 0;

    ds_dbg(0, "ds_open(socket %d)\n", i);

    s = pcmcia_get_socket_by_nr(i);
    if (!s)
	    return -ENODEV;
    s = pcmcia_get_socket(s);
    if (!s)
	    return -ENODEV;

    if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
	    if (s->pcmcia_state.busy) {
		    pcmcia_put_socket(s);
		    return -EBUSY;
	    }
	else
	    s->pcmcia_state.busy = 1;
    }

    user = kmalloc(sizeof(user_info_t), GFP_KERNEL);
    if (!user) {
	    pcmcia_put_socket(s);
	    return -ENOMEM;
    }
    user->event_tail = user->event_head = 0;
    user->next = s->user;
    user->user_magic = USER_MAGIC;
    user->socket = s;
    s->user = user;
    file->private_data = user;

    if (!warning_printed) {
	    printk(KERN_INFO "pcmcia: Detected deprecated PCMCIA ioctl "
			"usage.\n");
	    printk(KERN_INFO "pcmcia: This interface will soon be removed from "
			"the kernel; please expect breakage unless you upgrade "
			"to new tools.\n");
	    printk(KERN_INFO "pcmcia: see http://www.kernel.org/pub/linux/"
			"utils/kernel/pcmcia/pcmcia.html for details.\n");
	    warning_printed = 1;
    }

    if (s->pcmcia_state.present)
	queue_event(user, CS_EVENT_CARD_INSERTION);
    return 0;
} /* ds_open */

/*====================================================================*/

static int ds_release(struct inode *inode, struct file *file)
{
    struct pcmcia_socket *s;
    user_info_t *user, **link;

    ds_dbg(0, "ds_release(socket %d)\n", iminor(inode));

    user = file->private_data;
    if (CHECK_USER(user))
	goto out;

    s = user->socket;

    /* Unlink user data structure */
    if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
	s->pcmcia_state.busy = 0;
    }
    file->private_data = NULL;
    for (link = &s->user; *link; link = &(*link)->next)
	if (*link == user) break;
    if (link == NULL)
	goto out;
    *link = user->next;
    user->user_magic = 0;
    kfree(user);
    pcmcia_put_socket(s);
out:
    return 0;
} /* ds_release */

/*====================================================================*/

static ssize_t ds_read(struct file *file, char __user *buf,
		       size_t count, loff_t *ppos)
{
    struct pcmcia_socket *s;
    user_info_t *user;
    int ret;

    ds_dbg(2, "ds_read(socket %d)\n", iminor(file->f_dentry->d_inode));

    if (count < 4)
	return -EINVAL;

    user = file->private_data;
    if (CHECK_USER(user))
	return -EIO;

    s = user->socket;
    if (s->pcmcia_state.dead)
        return -EIO;

    ret = wait_event_interruptible(s->queue, !queue_empty(user));
    if (ret == 0)
	ret = put_user(get_queued_event(user), (int __user *)buf) ? -EFAULT : 4;

    return ret;
} /* ds_read */

/*====================================================================*/

static ssize_t ds_write(struct file *file, const char __user *buf,
			size_t count, loff_t *ppos)
{
    ds_dbg(2, "ds_write(socket %d)\n", iminor(file->f_dentry->d_inode));

    if (count != 4)
	return -EINVAL;
    if ((file->f_flags & O_ACCMODE) == O_RDONLY)
	return -EBADF;

    return -EIO;
} /* ds_write */

/*====================================================================*/

/* No kernel lock - fine */
static u_int ds_poll(struct file *file, poll_table *wait)
{
    struct pcmcia_socket *s;
    user_info_t *user;

    ds_dbg(2, "ds_poll(socket %d)\n", iminor(file->f_dentry->d_inode));

    user = file->private_data;
    if (CHECK_USER(user))
	return POLLERR;
    s = user->socket;
    /*
     * We don't check for a dead socket here since that
     * will send cardmgr into an endless spin.
     */
    poll_wait(file, &s->queue, wait);
    if (!queue_empty(user))
	return POLLIN | POLLRDNORM;
    return 0;
} /* ds_poll */

/*====================================================================*/

extern int pcmcia_adjust_resource_info(adjust_t *adj);

static int ds_ioctl(struct inode * inode, struct file * file,
		    u_int cmd, u_long arg)
{
    struct pcmcia_socket *s;
    void __user *uarg = (char __user *)arg;
    u_int size;
    int ret, err;
    ds_ioctl_arg_t *buf;
    user_info_t *user;

    ds_dbg(2, "ds_ioctl(socket %d, %#x, %#lx)\n", iminor(inode), cmd, arg);

    user = file->private_data;
    if (CHECK_USER(user))
	return -EIO;

    s = user->socket;
    if (s->pcmcia_state.dead)
        return -EIO;

    size = (cmd & IOCSIZE_MASK) >> IOCSIZE_SHIFT;
    if (size > sizeof(ds_ioctl_arg_t)) return -EINVAL;

    /* Permission check */
    if (!(cmd & IOC_OUT) && !capable(CAP_SYS_ADMIN))
	return -EPERM;

    if (cmd & IOC_IN) {
	if (!access_ok(VERIFY_READ, uarg, size)) {
	    ds_dbg(3, "ds_ioctl(): verify_read = %d\n", -EFAULT);
	    return -EFAULT;
	}
    }
    if (cmd & IOC_OUT) {
	if (!access_ok(VERIFY_WRITE, uarg, size)) {
	    ds_dbg(3, "ds_ioctl(): verify_write = %d\n", -EFAULT);
	    return -EFAULT;
	}
    }
    buf = kmalloc(sizeof(ds_ioctl_arg_t), GFP_KERNEL);
    if (!buf)
	return -ENOMEM;

    err = ret = 0;

    if (cmd & IOC_IN) __copy_from_user((char *)buf, uarg, size);

    switch (cmd) {
    case DS_ADJUST_RESOURCE_INFO:
	ret = pcmcia_adjust_resource_info(&buf->adjust);
	break;
    case DS_GET_CONFIGURATION_INFO:
	if (buf->config.Function &&
	   (buf->config.Function >= s->functions))
	    ret = CS_BAD_ARGS;
	else {
	    struct pcmcia_device *p_dev = get_pcmcia_device(s, buf->config.Function);
	    ret = pccard_get_configuration_info(s, p_dev, &buf->config);
	    pcmcia_put_dev(p_dev);
	}
	break;
    case DS_GET_FIRST_TUPLE:
	mutex_lock(&s->skt_mutex);
	pcmcia_validate_mem(s);
	mutex_unlock(&s->skt_mutex);
	ret = pccard_get_first_tuple(s, BIND_FN_ALL, &buf->tuple);
	break;
    case DS_GET_NEXT_TUPLE:
	ret = pccard_get_next_tuple(s, BIND_FN_ALL, &buf->tuple);
	break;
    case DS_GET_TUPLE_DATA:
	buf->tuple.TupleData = buf->tuple_parse.data;
	buf->tuple.TupleDataMax = sizeof(buf->tuple_parse.data);
	ret = pccard_get_tuple_data(s, &buf->tuple);
	break;
    case DS_PARSE_TUPLE:
	buf->tuple.TupleData = buf->tuple_parse.data;
	ret = pccard_parse_tuple(&buf->tuple, &buf->tuple_parse.parse);
	break;
    case DS_RESET_CARD:
	ret = pccard_reset_card(s);
	break;
    case DS_GET_STATUS:
	    if (buf->status.Function &&
		(buf->status.Function >= s->functions))
		    ret = CS_BAD_ARGS;
	    else {
		    struct pcmcia_device *p_dev = get_pcmcia_device(s, buf->status.Function);
		    ret = pccard_get_status(s, p_dev, &buf->status);
		    pcmcia_put_dev(p_dev);
	    }
	    break;
    case DS_VALIDATE_CIS:
	mutex_lock(&s->skt_mutex);
	pcmcia_validate_mem(s);
	mutex_unlock(&s->skt_mutex);
	ret = pccard_validate_cis(s, BIND_FN_ALL, &buf->cisinfo);
	break;
    case DS_SUSPEND_CARD:
	ret = pcmcia_suspend_card(s);
	break;
    case DS_RESUME_CARD:
	ret = pcmcia_resume_card(s);
	break;
    case DS_EJECT_CARD:
	err = pcmcia_eject_card(s);
	break;
    case DS_INSERT_CARD:
	err = pcmcia_insert_card(s);
	break;
    case DS_ACCESS_CONFIGURATION_REGISTER:
	if ((buf->conf_reg.Action == CS_WRITE) && !capable(CAP_SYS_ADMIN)) {
	    err = -EPERM;
	    goto free_out;
	}

	ret = CS_BAD_ARGS;

	if (!(buf->conf_reg.Function &&
	     (buf->conf_reg.Function >= s->functions))) {
		struct pcmcia_device *p_dev = get_pcmcia_device(s, buf->conf_reg.Function);
		if (p_dev)
			ret = pcmcia_access_configuration_register(p_dev, &buf->conf_reg);
		pcmcia_put_dev(p_dev);
	}
	break;
    case DS_GET_FIRST_REGION:
    case DS_GET_NEXT_REGION:
    case DS_BIND_MTD:
	if (!capable(CAP_SYS_ADMIN)) {
		err = -EPERM;
		goto free_out;
	} else {
		static int printed = 0;
		if (!printed) {
			printk(KERN_WARNING "2.6. kernels use pcmciamtd instead of memory_cs.c and do not require special\n");
			printk(KERN_WARNING "MTD handling any more.\n");
			printed++;
		}
	}
	err = -EINVAL;
	goto free_out;
	break;
    case DS_GET_FIRST_WINDOW:
	ret = pcmcia_get_window(s, &buf->win_info.handle, 0,
			&buf->win_info.window);
	break;
    case DS_GET_NEXT_WINDOW:
	ret = pcmcia_get_window(s, &buf->win_info.handle,
			buf->win_info.handle->index + 1, &buf->win_info.window);
	break;
    case DS_GET_MEM_PAGE:
	ret = pcmcia_get_mem_page(buf->win_info.handle,
			   &buf->win_info.map);
	break;
    case DS_REPLACE_CIS:
	ret = pcmcia_replace_cis(s, &buf->cisdump);
	break;
    case DS_BIND_REQUEST:
	if (!capable(CAP_SYS_ADMIN)) {
		err = -EPERM;
		goto free_out;
	}
	err = bind_request(s, &buf->bind_info);
	break;
    case DS_GET_DEVICE_INFO:
	err = get_device_info(s, &buf->bind_info, 1);
	break;
    case DS_GET_NEXT_DEVICE:
	err = get_device_info(s, &buf->bind_info, 0);
	break;
    case DS_UNBIND_REQUEST:
	err = 0;
	break;
    default:
	err = -EINVAL;
    }

    if ((err == 0) && (ret != CS_SUCCESS)) {
	ds_dbg(2, "ds_ioctl: ret = %d\n", ret);
	switch (ret) {
	case CS_BAD_SOCKET: case CS_NO_CARD:
	    err = -ENODEV; break;
	case CS_BAD_ARGS: case CS_BAD_ATTRIBUTE: case CS_BAD_IRQ:
	case CS_BAD_TUPLE:
	    err = -EINVAL; break;
	case CS_IN_USE:
	    err = -EBUSY; break;
	case CS_OUT_OF_RESOURCE:
	    err = -ENOSPC; break;
	case CS_NO_MORE_ITEMS:
	    err = -ENODATA; break;
	case CS_UNSUPPORTED_FUNCTION:
	    err = -ENOSYS; break;
	default:
	    err = -EIO; break;
	}
    }

    if (cmd & IOC_OUT) {
        if (__copy_to_user(uarg, (char *)buf, size))
            err = -EFAULT;
    }

free_out:
    kfree(buf);
    return err;
} /* ds_ioctl */

/*====================================================================*/

static struct file_operations ds_fops = {
	.owner		= THIS_MODULE,
	.open		= ds_open,
	.release	= ds_release,
	.ioctl		= ds_ioctl,
	.read		= ds_read,
	.write		= ds_write,
	.poll		= ds_poll,
};

void __init pcmcia_setup_ioctl(void) {
	int i;

	/* Set up character device for user mode clients */
	i = register_chrdev(0, "pcmcia", &ds_fops);
	if (i < 0)
		printk(KERN_NOTICE "unable to find a free device # for "
		       "Driver Services (error=%d)\n", i);
	else
		major_dev = i;

#ifdef CONFIG_PROC_FS
	proc_pccard = proc_mkdir("pccard", proc_bus);
	if (proc_pccard)
		create_proc_read_entry("drivers",0,proc_pccard,proc_read_drivers,NULL);
#endif
}


void __exit pcmcia_cleanup_ioctl(void) {
#ifdef CONFIG_PROC_FS
	if (proc_pccard) {
		remove_proc_entry("drivers", proc_pccard);
		remove_proc_entry("pccard", proc_bus);
	}
#endif
	if (major_dev != -1)
		unregister_chrdev(major_dev, "pcmcia");
}