patch-2.4.3 linux/drivers/isdn/hisax/sedlbauer_cs.c

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diff -u --recursive --new-file v2.4.2/linux/drivers/isdn/hisax/sedlbauer_cs.c linux/drivers/isdn/hisax/sedlbauer_cs.c
@@ -0,0 +1,679 @@
+/*======================================================================
+
+    A Sedlbauer PCMCIA client driver
+
+    This driver is for the Sedlbauer Speed Star and Speed Star II, 
+    which are ISDN PCMCIA Cards.
+    
+    sedlbauer_cs.c 1.1a 2001/01/28 15:04:04
+
+    The contents of this file are subject to the Mozilla Public
+    License Version 1.1 (the "License"); you may not use this file
+    except in compliance with the License. You may obtain a copy of
+    the License at http://www.mozilla.org/MPL/
+
+    Software distributed under the License is distributed on an "AS
+    IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+    implied. See the License for the specific language governing
+    rights and limitations under the License.
+
+    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.
+
+    Modifications from dummy_cs.c are Copyright (C) 1999-2001 Marcus Niemann
+    <maniemann@users.sourceforge.net>. All Rights Reserved.
+
+    Alternatively, the contents of this file may be used under the
+    terms of the GNU Public License version 2 (the "GPL"), in which
+    case the provisions of the GPL are applicable instead of the
+    above.  If you wish to allow the use of your version of this file
+    only under the terms of the GPL and not to allow others to use
+    your version of this file under the MPL, indicate your decision
+    by deleting the provisions above and replace them with the notice
+    and other provisions required by the GPL.  If you do not delete
+    the provisions above, a recipient may use your version of this
+    file under either the MPL or the GPL.
+    
+======================================================================*/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/ptrace.h>
+#include <linux/malloc.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/ioport.h>
+#include <asm/io.h>
+#include <asm/system.h>
+
+#include <pcmcia/version.h>
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/cisreg.h>
+#include <pcmcia/ds.h>
+#include <pcmcia/bus_ops.h>
+
+/*
+   All the PCMCIA modules use PCMCIA_DEBUG to control debugging.  If
+   you do not define PCMCIA_DEBUG at all, all the debug code will be
+   left out.  If you compile with PCMCIA_DEBUG=0, the debug code will
+   be present but disabled -- but it can then be enabled for specific
+   modules at load time with a 'pc_debug=#' option to insmod.
+*/
+
+#ifdef PCMCIA_DEBUG
+static int pc_debug = PCMCIA_DEBUG;
+MODULE_PARM(pc_debug, "i");
+#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args); 
+static char *version =
+"sedlbauer_cs.c 1.1a 2001/01/28 15:04:04 (M.Niemann)";
+#else
+#define DEBUG(n, args...)
+#endif
+
+
+/*====================================================================*/
+
+/* Parameters that can be set with 'insmod' */
+
+/* The old way: bit map of interrupts to choose from */
+/* This means pick from 15, 14, 12, 11, 10, 9, 7, 5, 4, and 3 */
+static u_int irq_mask = 0xdeb8;
+/* Newer, simpler way of listing specific interrupts */
+static int irq_list[4] = { -1 };
+
+MODULE_PARM(irq_mask, "i");
+MODULE_PARM(irq_list, "1-4i");
+
+static int protocol = 2;        /* EURO-ISDN Default */
+MODULE_PARM(protocol, "i");
+
+extern int sedl_init_pcmcia(int, int, int*, int);
+
+/*====================================================================*/
+
+/*
+   The event() function is this driver's Card Services event handler.
+   It will be called by Card Services when an appropriate card status
+   event is received.  The config() and release() entry points are
+   used to configure or release a socket, in response to card
+   insertion and ejection events.  They are invoked from the sedlbauer
+   event handler. 
+*/
+
+static void sedlbauer_config(dev_link_t *link);
+static void sedlbauer_release(u_long arg);
+static int sedlbauer_event(event_t event, int priority,
+		       event_callback_args_t *args);
+
+/*
+   The attach() and detach() entry points are used to create and destroy
+   "instances" of the driver, where each instance represents everything
+   needed to manage one actual PCMCIA card.
+*/
+
+static dev_link_t *sedlbauer_attach(void);
+static void sedlbauer_detach(dev_link_t *);
+
+/*
+   You'll also need to prototype all the functions that will actually
+   be used to talk to your device.  See 'memory_cs' for a good example
+   of a fully self-sufficient driver; the other drivers rely more or
+   less on other parts of the kernel.
+*/
+
+/*
+   The dev_info variable is the "key" that is used to match up this
+   device driver with appropriate cards, through the card configuration
+   database.
+*/
+
+static dev_info_t dev_info = "sedlbauer_cs";
+
+/*
+   A linked list of "instances" of the sedlbauer device.  Each actual
+   PCMCIA card corresponds to one device instance, and is described
+   by one dev_link_t structure (defined in ds.h).
+
+   You may not want to use a linked list for this -- for example, the
+   memory card driver uses an array of dev_link_t pointers, where minor
+   device numbers are used to derive the corresponding array index.
+*/
+
+static dev_link_t *dev_list = NULL;
+
+/*
+   A dev_link_t structure has fields for most things that are needed
+   to keep track of a socket, but there will usually be some device
+   specific information that also needs to be kept track of.  The
+   'priv' pointer in a dev_link_t structure can be used to point to
+   a device-specific private data structure, like this.
+
+   To simplify the data structure handling, we actually include the
+   dev_link_t structure in the device's private data structure.
+
+   A driver needs to provide a dev_node_t structure for each device
+   on a card.  In some cases, there is only one device per card (for
+   example, ethernet cards, modems).  In other cases, there may be
+   many actual or logical devices (SCSI adapters, memory cards with
+   multiple partitions).  The dev_node_t structures need to be kept
+   in a linked list starting at the 'dev' field of a dev_link_t
+   structure.  We allocate them in the card's private data structure,
+   because they generally shouldn't be allocated dynamically.
+
+   In this case, we also provide a flag to indicate if a device is
+   "stopped" due to a power management event, or card ejection.  The
+   device IO routines can use a flag like this to throttle IO to a
+   card that is not ready to accept it.
+
+   The bus_operations pointer is used on platforms for which we need
+   to use special socket-specific versions of normal IO primitives
+   (inb, outb, readb, writeb, etc) for card IO.
+*/
+   
+typedef struct local_info_t {
+    dev_link_t		link;
+    dev_node_t		node;
+    int			stop;
+    struct bus_operations *bus;
+} local_info_t;
+
+/*====================================================================*/
+
+static void cs_error(client_handle_t handle, int func, int ret)
+{
+    error_info_t err = { func, ret };
+    CardServices(ReportError, handle, &err);
+}
+
+/*======================================================================
+
+    sedlbauer_attach() creates an "instance" of the driver, allocating
+    local data structures for one device.  The device is registered
+    with Card Services.
+
+    The dev_link structure is initialized, but we don't actually
+    configure the card at this point -- we wait until we receive a
+    card insertion event.
+    
+======================================================================*/
+
+static dev_link_t *sedlbauer_attach(void)
+{
+    local_info_t *local;
+    dev_link_t *link;
+    client_reg_t client_reg;
+    int ret, i;
+    
+    DEBUG(0, "sedlbauer_attach()\n");
+
+    /* Allocate space for private device-specific data */
+    local = kmalloc(sizeof(local_info_t), GFP_KERNEL);
+    if (!local) return NULL;
+    memset(local, 0, sizeof(local_info_t));
+    link = &local->link; link->priv = local;
+    
+    /* Initialize the dev_link_t structure */
+    link->release.function = &sedlbauer_release;
+    link->release.data = (u_long)link;
+
+    /* Interrupt setup */
+    link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
+    link->irq.IRQInfo1 = IRQ_INFO2_VALID|IRQ_LEVEL_ID;
+    if (irq_list[0] == -1)
+	link->irq.IRQInfo2 = irq_mask;
+    else
+	for (i = 0; i < 4; i++)
+	    link->irq.IRQInfo2 |= 1 << irq_list[i];
+    link->irq.Handler = NULL;
+    
+    /*
+      General socket configuration defaults can go here.  In this
+      client, we assume very little, and rely on the CIS for almost
+      everything.  In most clients, many details (i.e., number, sizes,
+      and attributes of IO windows) are fixed by the nature of the
+      device, and can be hard-wired here.
+    */
+
+    /* from old sedl_cs 
+    */
+    /* The io structure describes IO port mapping */
+    link->io.NumPorts1 = 8;
+    link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
+    link->io.IOAddrLines = 3;
+
+
+    link->conf.Attributes = 0;
+    link->conf.Vcc = 50;
+    link->conf.IntType = INT_MEMORY_AND_IO;
+
+    /* Register with Card Services */
+    link->next = dev_list;
+    dev_list = link;
+    client_reg.dev_info = &dev_info;
+    client_reg.Attributes = INFO_IO_CLIENT | INFO_CARD_SHARE;
+    client_reg.EventMask =
+	CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
+	CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
+	CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
+    client_reg.event_handler = &sedlbauer_event;
+    client_reg.Version = 0x0210;
+    client_reg.event_callback_args.client_data = link;
+    ret = CardServices(RegisterClient, &link->handle, &client_reg);
+    if (ret != CS_SUCCESS) {
+	cs_error(link->handle, RegisterClient, ret);
+	sedlbauer_detach(link);
+	return NULL;
+    }
+
+    return link;
+} /* sedlbauer_attach */
+
+/*======================================================================
+
+    This deletes a driver "instance".  The device is de-registered
+    with Card Services.  If it has been released, all local data
+    structures are freed.  Otherwise, the structures will be freed
+    when the device is released.
+
+======================================================================*/
+
+static void sedlbauer_detach(dev_link_t *link)
+{
+    dev_link_t **linkp;
+
+    DEBUG(0, "sedlbauer_detach(0x%p)\n", link);
+    
+    /* Locate device structure */
+    for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
+	if (*linkp == link) break;
+    if (*linkp == NULL)
+	return;
+
+    /*
+       If the device is currently configured and active, we won't
+       actually delete it yet.  Instead, it is marked so that when
+       the release() function is called, that will trigger a proper
+       detach().
+    */
+    if (link->state & DEV_CONFIG) {
+#ifdef PCMCIA_DEBUG
+	printk(KERN_DEBUG "sedlbauer_cs: detach postponed, '%s' "
+	       "still locked\n", link->dev->dev_name);
+#endif
+	link->state |= DEV_STALE_LINK;
+	return;
+    }
+
+    /* Break the link with Card Services */
+    if (link->handle)
+	CardServices(DeregisterClient, link->handle);
+    
+    /* Unlink device structure, and free it */
+    *linkp = link->next;
+    /* This points to the parent local_info_t struct */
+    kfree(link->priv);
+} /* sedlbauer_detach */
+
+/*======================================================================
+
+    sedlbauer_config() is scheduled to run after a CARD_INSERTION event
+    is received, to configure the PCMCIA socket, and to make the
+    device available to the system.
+    
+======================================================================*/
+
+#define CS_CHECK(fn, args...) \
+while ((last_ret=CardServices(last_fn=(fn),args))!=0) goto cs_failed
+
+#define CFG_CHECK(fn, args...) \
+if (CardServices(fn, args) != 0) goto next_entry
+
+static void sedlbauer_config(dev_link_t *link)
+{
+    client_handle_t handle = link->handle;
+    local_info_t *dev = link->priv;
+    tuple_t tuple;
+    cisparse_t parse;
+    int last_fn, last_ret;
+    u_char buf[64];
+    config_info_t conf;
+    win_req_t req;
+    memreq_t map;
+    
+
+    DEBUG(0, "sedlbauer_config(0x%p)\n", link);
+
+    /*
+       This reads the card's CONFIG tuple to find its configuration
+       registers.
+    */
+    tuple.DesiredTuple = CISTPL_CONFIG;
+    tuple.Attributes = 0;
+    tuple.TupleData = buf;
+    tuple.TupleDataMax = sizeof(buf);
+    tuple.TupleOffset = 0;
+    CS_CHECK(GetFirstTuple, handle, &tuple);
+    CS_CHECK(GetTupleData, handle, &tuple);
+    CS_CHECK(ParseTuple, handle, &tuple, &parse);
+    link->conf.ConfigBase = parse.config.base;
+    link->conf.Present = parse.config.rmask[0];
+    
+    /* Configure card */
+    link->state |= DEV_CONFIG;
+
+    /* Look up the current Vcc */
+    CS_CHECK(GetConfigurationInfo, handle, &conf);
+    link->conf.Vcc = conf.Vcc;
+
+    /*
+      In this loop, we scan the CIS for configuration table entries,
+      each of which describes a valid card configuration, including
+      voltage, IO window, memory window, and interrupt settings.
+
+      We make no assumptions about the card to be configured: we use
+      just the information available in the CIS.  In an ideal world,
+      this would work for any PCMCIA card, but it requires a complete
+      and accurate CIS.  In practice, a driver usually "knows" most of
+      these things without consulting the CIS, and most client drivers
+      will only use the CIS to fill in implementation-defined details.
+    */
+    tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
+    CS_CHECK(GetFirstTuple, handle, &tuple);
+    while (1) {
+	cistpl_cftable_entry_t dflt = { 0 };
+	cistpl_cftable_entry_t *cfg = &(parse.cftable_entry);
+	CFG_CHECK(GetTupleData, handle, &tuple);
+	CFG_CHECK(ParseTuple, handle, &tuple, &parse);
+
+	if (cfg->flags & CISTPL_CFTABLE_DEFAULT) dflt = *cfg;
+	if (cfg->index == 0) goto next_entry;
+	link->conf.ConfigIndex = cfg->index;
+	
+	/* Does this card need audio output? */
+	if (cfg->flags & CISTPL_CFTABLE_AUDIO) {
+	    link->conf.Attributes |= CONF_ENABLE_SPKR;
+	    link->conf.Status = CCSR_AUDIO_ENA;
+	}
+	
+	/* Use power settings for Vcc and Vpp if present */
+	/*  Note that the CIS values need to be rescaled */
+	if (cfg->vcc.present & (1<<CISTPL_POWER_VNOM)) {
+	    if (conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM]/10000)
+		goto next_entry;
+	} else if (dflt.vcc.present & (1<<CISTPL_POWER_VNOM)) {
+	    if (conf.Vcc != dflt.vcc.param[CISTPL_POWER_VNOM]/10000)
+		goto next_entry;
+	}
+	    
+	if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM))
+	    link->conf.Vpp1 = link->conf.Vpp2 =
+		cfg->vpp1.param[CISTPL_POWER_VNOM]/10000;
+	else if (dflt.vpp1.present & (1<<CISTPL_POWER_VNOM))
+	    link->conf.Vpp1 = link->conf.Vpp2 =
+		dflt.vpp1.param[CISTPL_POWER_VNOM]/10000;
+	
+	/* Do we need to allocate an interrupt? */
+	if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1)
+	    link->conf.Attributes |= CONF_ENABLE_IRQ;
+	
+	/* IO window settings */
+	link->io.NumPorts1 = link->io.NumPorts2 = 0;
+	if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
+	    cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
+	    link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
+	    if (!(io->flags & CISTPL_IO_8BIT))
+		link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
+	    if (!(io->flags & CISTPL_IO_16BIT))
+		link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
+/* new in dummy.cs 2001/01/28 MN 
+            link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
+*/
+	    link->io.BasePort1 = io->win[0].base;
+	    link->io.NumPorts1 = io->win[0].len;
+	    if (io->nwin > 1) {
+		link->io.Attributes2 = link->io.Attributes1;
+		link->io.BasePort2 = io->win[1].base;
+		link->io.NumPorts2 = io->win[1].len;
+	    }
+	    /* This reserves IO space but doesn't actually enable it */
+	    CFG_CHECK(RequestIO, link->handle, &link->io);
+	}
+
+	/*
+	  Now set up a common memory window, if needed.  There is room
+	  in the dev_link_t structure for one memory window handle,
+	  but if the base addresses need to be saved, or if multiple
+	  windows are needed, the info should go in the private data
+	  structure for this device.
+
+	  Note that the memory window base is a physical address, and
+	  needs to be mapped to virtual space with ioremap() before it
+	  is used.
+	*/
+	if ((cfg->mem.nwin > 0) || (dflt.mem.nwin > 0)) {
+	    cistpl_mem_t *mem =
+		(cfg->mem.nwin) ? &cfg->mem : &dflt.mem;
+	    req.Attributes = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM;
+	    req.Attributes |= WIN_ENABLE;
+	    req.Base = mem->win[0].host_addr;
+	    req.Size = mem->win[0].len;
+/* new in dummy.cs 2001/01/28 MN 
+            if (req.Size < 0x1000)
+                req.Size = 0x1000;
+*/
+	    req.AccessSpeed = 0;
+	    link->win = (window_handle_t)link->handle;
+	    CFG_CHECK(RequestWindow, &link->win, &req);
+	    map.Page = 0; map.CardOffset = mem->win[0].card_addr;
+	    CFG_CHECK(MapMemPage, link->win, &map);
+	}
+	/* If we got this far, we're cool! */
+	break;
+	
+    next_entry:
+/* new in dummy.cs 2001/01/28 MN 
+        if (link->io.NumPorts1)
+           CardServices(ReleaseIO, link->handle, &link->io);
+*/
+	CS_CHECK(GetNextTuple, handle, &tuple);
+    }
+    
+    /*
+       Allocate an interrupt line.  Note that this does not assign a
+       handler to the interrupt, unless the 'Handler' member of the
+       irq structure is initialized.
+    */
+    if (link->conf.Attributes & CONF_ENABLE_IRQ)
+	CS_CHECK(RequestIRQ, link->handle, &link->irq);
+	
+    /*
+       This actually configures the PCMCIA socket -- setting up
+       the I/O windows and the interrupt mapping, and putting the
+       card and host interface into "Memory and IO" mode.
+    */
+    CS_CHECK(RequestConfiguration, link->handle, &link->conf);
+
+    /*
+      At this point, the dev_node_t structure(s) need to be
+      initialized and arranged in a linked list at link->dev.
+    */
+    sprintf(dev->node.dev_name, "sedlbauer");
+    dev->node.major = dev->node.minor = 0;
+    link->dev = &dev->node;
+
+    /* Finally, report what we've done */
+    printk(KERN_INFO "%s: index 0x%02x: Vcc %d.%d",
+	   dev->node.dev_name, link->conf.ConfigIndex,
+	   link->conf.Vcc/10, link->conf.Vcc%10);
+    if (link->conf.Vpp1)
+	printk(", Vpp %d.%d", link->conf.Vpp1/10, link->conf.Vpp1%10);
+    if (link->conf.Attributes & CONF_ENABLE_IRQ)
+	printk(", irq %d", link->irq.AssignedIRQ);
+    if (link->io.NumPorts1)
+	printk(", io 0x%04x-0x%04x", link->io.BasePort1,
+	       link->io.BasePort1+link->io.NumPorts1-1);
+    if (link->io.NumPorts2)
+	printk(" & 0x%04x-0x%04x", link->io.BasePort2,
+	       link->io.BasePort2+link->io.NumPorts2-1);
+    if (link->win)
+	printk(", mem 0x%06lx-0x%06lx", req.Base,
+	       req.Base+req.Size-1);
+    printk("\n");
+    
+    link->state &= ~DEV_CONFIG_PENDING;
+ 
+    sedl_init_pcmcia(link->io.BasePort1, link->irq.AssignedIRQ,
+                     &(((local_info_t*)link->priv)->stop),
+                     protocol);
+
+    return;
+
+cs_failed:
+    cs_error(link->handle, last_fn, last_ret);
+    sedlbauer_release((u_long)link);
+
+} /* sedlbauer_config */
+
+/*======================================================================
+
+    After a card is removed, sedlbauer_release() will unregister the
+    device, and release the PCMCIA configuration.  If the device is
+    still open, this will be postponed until it is closed.
+    
+======================================================================*/
+
+static void sedlbauer_release(u_long arg)
+{
+    dev_link_t *link = (dev_link_t *)arg;
+
+    DEBUG(0, "sedlbauer_release(0x%p)\n", link);
+
+    /*
+       If the device is currently in use, we won't release until it
+       is actually closed, because until then, we can't be sure that
+       no one will try to access the device or its data structures.
+    */
+    if (link->open) {
+	DEBUG(1, "sedlbauer_cs: release postponed, '%s' still open\n",
+	      link->dev->dev_name);
+	link->state |= DEV_STALE_CONFIG;
+	return;
+    }
+
+    /* Unlink the device chain */
+    link->dev = NULL;
+
+    /*
+      In a normal driver, additional code may be needed to release
+      other kernel data structures associated with this device. 
+    */
+    
+    /* Don't bother checking to see if these succeed or not */
+    if (link->win)
+	CardServices(ReleaseWindow, link->win);
+    CardServices(ReleaseConfiguration, link->handle);
+    if (link->io.NumPorts1)
+	CardServices(ReleaseIO, link->handle, &link->io);
+    if (link->irq.AssignedIRQ)
+	CardServices(ReleaseIRQ, link->handle, &link->irq);
+    link->state &= ~DEV_CONFIG;
+    
+    if (link->state & DEV_STALE_LINK)
+	sedlbauer_detach(link);
+    
+} /* sedlbauer_release */
+
+/*======================================================================
+
+    The card status event handler.  Mostly, this schedules other
+    stuff to run after an event is received.
+
+    When a CARD_REMOVAL event is received, we immediately set a
+    private flag to block future accesses to this device.  All the
+    functions that actually access the device should check this flag
+    to make sure the card is still present.
+    
+======================================================================*/
+
+static int sedlbauer_event(event_t event, int priority,
+		       event_callback_args_t *args)
+{
+    dev_link_t *link = args->client_data;
+    local_info_t *dev = link->priv;
+    
+    DEBUG(1, "sedlbauer_event(0x%06x)\n", event);
+    
+    switch (event) {
+    case CS_EVENT_CARD_REMOVAL:
+	link->state &= ~DEV_PRESENT;
+	if (link->state & DEV_CONFIG) {
+	    ((local_info_t *)link->priv)->stop = 1;
+	    mod_timer(&link->release, jiffies + HZ/20);
+	}
+	break;
+    case CS_EVENT_CARD_INSERTION:
+	link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+	dev->bus = args->bus;
+	sedlbauer_config(link);
+	break;
+    case CS_EVENT_PM_SUSPEND:
+	link->state |= DEV_SUSPEND;
+	/* Fall through... */
+    case CS_EVENT_RESET_PHYSICAL:
+	/* Mark the device as stopped, to block IO until later */
+	dev->stop = 1;
+	if (link->state & DEV_CONFIG)
+	    CardServices(ReleaseConfiguration, link->handle);
+	break;
+    case CS_EVENT_PM_RESUME:
+	link->state &= ~DEV_SUSPEND;
+	/* Fall through... */
+    case CS_EVENT_CARD_RESET:
+	if (link->state & DEV_CONFIG)
+	    CardServices(RequestConfiguration, link->handle, &link->conf);
+	dev->stop = 0;
+	/*
+	  In a normal driver, additional code may go here to restore
+	  the device state and restart IO. 
+	*/
+	break;
+    }
+    return 0;
+} /* sedlbauer_event */
+
+/*====================================================================*/
+
+static int __init init_sedlbauer_cs(void)
+{
+    servinfo_t serv;
+    DEBUG(0, "%s\n", version);
+    CardServices(GetCardServicesInfo, &serv);
+    if (serv.Revision != CS_RELEASE_CODE) {
+	printk(KERN_NOTICE "sedlbauer_cs: Card Services release "
+	       "does not match!\n");
+	return -1;
+    }
+    register_pccard_driver(&dev_info, &sedlbauer_attach, &sedlbauer_detach);
+    return 0;
+}
+
+static void __exit exit_sedlbauer_cs(void)
+{
+    DEBUG(0, "sedlbauer_cs: unloading\n");
+    unregister_pccard_driver(&dev_info);
+    while (dev_list != NULL) {
+	del_timer(&dev_list->release);
+	if (dev_list->state & DEV_CONFIG)
+	    sedlbauer_release((u_long)dev_list);
+	sedlbauer_detach(dev_list);
+    }
+}
+
+module_init(init_sedlbauer_cs);
+module_exit(exit_sedlbauer_cs);
+
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TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)