[mirror_ubuntu-hirsute-kernel.git] / drivers / staging / comedi / drivers / das08_cs.c

/*
    comedi/drivers/das08_cs.c
    DAS08 driver

    COMEDI - Linux Control and Measurement Device Interface
    Copyright (C) 2000 David A. Schleef <ds@schleef.org>
    Copyright (C) 2001,2002,2003 Frank Mori Hess <fmhess@users.sourceforge.net>

    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.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*****************************************************************

*/
/*
Driver: das08_cs
Description: DAS-08 PCMCIA boards
Author: Warren Jasper, ds, Frank Hess
Devices: [ComputerBoards] PCM-DAS08 (pcm-das08)
Status: works

This is the PCMCIA-specific support split off from the
das08 driver.

Options (for pcm-das08):
	NONE

Command support does not exist, but could be added for this board.
*/

#include "../comedidev.h"

#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/slab.h>

#include "das08.h"

/* pcmcia includes */
#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/ds.h>

static struct pcmcia_device *cur_dev;

#define thisboard ((const struct das08_board_struct *)dev->board_ptr)

static int das08_cs_attach(struct comedi_device *dev,
			   struct comedi_devconfig *it);

static struct comedi_driver driver_das08_cs = {
	.driver_name = "das08_cs",
	.module = THIS_MODULE,
	.attach = das08_cs_attach,
	.detach = das08_common_detach,
	.board_name = &das08_cs_boards[0].name,
	.num_names = ARRAY_SIZE(das08_cs_boards),
	.offset = sizeof(struct das08_board_struct),
};

static int das08_cs_attach(struct comedi_device *dev,
			   struct comedi_devconfig *it)
{
	int ret;
	unsigned long iobase;
	struct pcmcia_device *link = cur_dev;	/*  XXX hack */

	ret = alloc_private(dev, sizeof(struct das08_private_struct));
	if (ret < 0)
		return ret;

	printk("comedi%d: das08_cs: ", dev->minor);
	/*  deal with a pci board */

	if (thisboard->bustype == pcmcia) {
		if (link == NULL) {
			printk(" no pcmcia cards found\n");
			return -EIO;
		}
		iobase = link->io.BasePort1;
	} else {
		printk(" bug! board does not have PCMCIA bustype\n");
		return -EINVAL;
	}

	printk("\n");

	return das08_common_attach(dev, iobase);
}

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

    The following pcmcia code for the pcm-das08 is adapted from the
    dummy_cs.c driver of the Linux PCMCIA Card Services package.

    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.

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

static void das08_pcmcia_config(struct pcmcia_device *link);
static void das08_pcmcia_release(struct pcmcia_device *link);
static int das08_pcmcia_suspend(struct pcmcia_device *p_dev);
static int das08_pcmcia_resume(struct pcmcia_device *p_dev);

/*
   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 int das08_pcmcia_attach(struct pcmcia_device *);
static void das08_pcmcia_detach(struct pcmcia_device *);

/*
   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 const dev_info_t dev_info = "pcm-das08";

struct local_info_t {
	struct pcmcia_device *link;
	int stop;
	struct bus_operations *bus;
};

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

    das08_pcmcia_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 int das08_pcmcia_attach(struct pcmcia_device *link)
{
	struct local_info_t *local;

	dev_dbg(&link->dev, "das08_pcmcia_attach()\n");

	/* Allocate space for private device-specific data */
	local = kzalloc(sizeof(struct local_info_t), GFP_KERNEL);
	if (!local)
		return -ENOMEM;
	local->link = link;
	link->priv = local;

	/*
	   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.
	 */
	link->conf.Attributes = 0;
	link->conf.IntType = INT_MEMORY_AND_IO;

	cur_dev = link;

	das08_pcmcia_config(link);

	return 0;
}				/* das08_pcmcia_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 das08_pcmcia_detach(struct pcmcia_device *link)
{

	dev_dbg(&link->dev, "das08_pcmcia_detach\n");

	((struct local_info_t *)link->priv)->stop = 1;
	das08_pcmcia_release(link);

	/* This points to the parent struct local_info_t struct */
	if (link->priv)
		kfree(link->priv);

}				/* das08_pcmcia_detach */


static int das08_pcmcia_config_loop(struct pcmcia_device *p_dev,
				cistpl_cftable_entry_t *cfg,
				cistpl_cftable_entry_t *dflt,
				unsigned int vcc,
				void *priv_data)
{
	if (cfg->index == 0)
		return -ENODEV;

	/* Do we need to allocate an interrupt? */
	p_dev->conf.Attributes |= CONF_ENABLE_IRQ;

	/* IO window settings */
	p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0;
	if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) {
		cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io;
		p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
		if (!(io->flags & CISTPL_IO_8BIT))
			p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
		if (!(io->flags & CISTPL_IO_16BIT))
			p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
		p_dev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
		p_dev->io.BasePort1 = io->win[0].base;
		p_dev->io.NumPorts1 = io->win[0].len;
		if (io->nwin > 1) {
			p_dev->io.Attributes2 = p_dev->io.Attributes1;
			p_dev->io.BasePort2 = io->win[1].base;
			p_dev->io.NumPorts2 = io->win[1].len;
		}
		/* This reserves IO space but doesn't actually enable it */
		return pcmcia_request_io(p_dev, &p_dev->io);
	}
	return 0;
}


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

    das08_pcmcia_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.

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

static void das08_pcmcia_config(struct pcmcia_device *link)
{
	int ret;

	dev_dbg(&link->dev, "das08_pcmcia_config\n");

	ret = pcmcia_loop_config(link, das08_pcmcia_config_loop, NULL);
	if (ret) {
		dev_warn(&link->dev, "no configuration found\n");
		goto failed;
	}

	if (!link->irq)
		goto failed;

	/*
	   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.
	 */
	ret = pcmcia_request_configuration(link, &link->conf);
	if (ret)
		goto failed;

	/* Finally, report what we've done */
	dev_info(&link->dev, "index 0x%02x", link->conf.ConfigIndex);
	if (link->conf.Attributes & CONF_ENABLE_IRQ)
		printk(", irq %u", link->irq);
	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);
	printk("\n");

	return;

failed:
	das08_pcmcia_release(link);

}				/* das08_pcmcia_config */

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

    After a card is removed, das08_pcmcia_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 das08_pcmcia_release(struct pcmcia_device *link)
{
	dev_dbg(&link->dev, "das08_pcmcia_release\n");
	pcmcia_disable_device(link);
}				/* das08_pcmcia_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 das08_pcmcia_suspend(struct pcmcia_device *link)
{
	struct local_info_t *local = link->priv;
	/* Mark the device as stopped, to block IO until later */
	local->stop = 1;

	return 0;
}				/* das08_pcmcia_suspend */

static int das08_pcmcia_resume(struct pcmcia_device *link)
{
	struct local_info_t *local = link->priv;

	local->stop = 0;
	return 0;
}				/* das08_pcmcia_resume */

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

static struct pcmcia_device_id das08_cs_id_table[] = {
	PCMCIA_DEVICE_MANF_CARD(0x01c5, 0x4001),
	PCMCIA_DEVICE_NULL
};

MODULE_DEVICE_TABLE(pcmcia, das08_cs_id_table);

struct pcmcia_driver das08_cs_driver = {
	.probe = das08_pcmcia_attach,
	.remove = das08_pcmcia_detach,
	.suspend = das08_pcmcia_suspend,
	.resume = das08_pcmcia_resume,
	.id_table = das08_cs_id_table,
	.owner = THIS_MODULE,
	.drv = {
		.name = dev_info,
		},
};

static int __init init_das08_pcmcia_cs(void)
{
	pcmcia_register_driver(&das08_cs_driver);
	return 0;
}

static void __exit exit_das08_pcmcia_cs(void)
{
	pr_debug("das08_pcmcia_cs: unloading\n");
	pcmcia_unregister_driver(&das08_cs_driver);
}

static int __init das08_cs_init_module(void)
{
	int ret;

	ret = init_das08_pcmcia_cs();
	if (ret < 0)
		return ret;

	return comedi_driver_register(&driver_das08_cs);
}

static void __exit das08_cs_exit_module(void)
{
	exit_das08_pcmcia_cs();
	comedi_driver_unregister(&driver_das08_cs);
}

MODULE_LICENSE("GPL");
module_init(das08_cs_init_module);
module_exit(das08_cs_exit_module);
Commit	Line	Data
0882eaa6 DS	1	/*
	2	comedi/drivers/das08_cs.c
	3	DAS08 driver
	4
	5	COMEDI - Linux Control and Measurement Device Interface
	6	Copyright (C) 2000 David A. Schleef <ds@schleef.org>
	7	Copyright (C) 2001,2002,2003 Frank Mori Hess <fmhess@users.sourceforge.net>
	8
	9	This program is free software; you can redistribute it and/or modify
	10	it under the terms of the GNU General Public License as published by
	11	the Free Software Foundation; either version 2 of the License, or
	12	(at your option) any later version.
	13
	14	This program is distributed in the hope that it will be useful,
	15	but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	GNU General Public License for more details.
	18
	19	You should have received a copy of the GNU General Public License
	20	along with this program; if not, write to the Free Software
	21	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	22
	23	*****************************************************************
	24
	25	*/
	26	/*
	27	Driver: das08_cs
	28	Description: DAS-08 PCMCIA boards
	29	Author: Warren Jasper, ds, Frank Hess
	30	Devices: [ComputerBoards] PCM-DAS08 (pcm-das08)
	31	Status: works
	32
	33	This is the PCMCIA-specific support split off from the
	34	das08 driver.
	35
	36	Options (for pcm-das08):
d539047c	37	NONE
0882eaa6 DS	38
	39	Command support does not exist, but could be added for this board.
	40	*/
	41
	42	#include "../comedidev.h"
	43
	44	#include <linux/delay.h>
	45	#include <linux/pci.h>
5a0e3ad6	46	#include <linux/slab.h>
0882eaa6 DS	47
	48	#include "das08.h"
	49
2696fb57	50	/* pcmcia includes */
0882eaa6 DS	51	#include <pcmcia/cs_types.h>
	52	#include <pcmcia/cs.h>
	53	#include <pcmcia/cistpl.h>
	54	#include <pcmcia/ds.h>
	55
d539047c	56	static struct pcmcia_device *cur_dev;
0882eaa6 DS	57
	58	#define thisboard ((const struct das08_board_struct *)dev->board_ptr)
	59
0a85b6f0 MT	60	static int das08_cs_attach(struct comedi_device *dev,
0a85b6f0 MT	61	struct comedi_devconfig *it);
0882eaa6	62
139dfbdf	63	static struct comedi_driver driver_das08_cs = {
68c3dbff BP	64	.driver_name = "das08_cs",
	65	.module = THIS_MODULE,
	66	.attach = das08_cs_attach,
	67	.detach = das08_common_detach,
	68	.board_name = &das08_cs_boards[0].name,
b6ac1613	69	.num_names = ARRAY_SIZE(das08_cs_boards),
68c3dbff	70	.offset = sizeof(struct das08_board_struct),
0882eaa6 DS	71	};
0882eaa6 DS	72
0a85b6f0 MT	73	static int das08_cs_attach(struct comedi_device *dev,
0a85b6f0 MT	74	struct comedi_devconfig *it)
0882eaa6 DS	75	{
	76	int ret;
	77	unsigned long iobase;
2696fb57	78	struct pcmcia_device link = cur_dev; / XXX hack */
0882eaa6	79
c3744138 BP	80	ret = alloc_private(dev, sizeof(struct das08_private_struct));
c3744138 BP	81	if (ret < 0)
0882eaa6 DS	82	return ret;
	83
	84	printk("comedi%d: das08_cs: ", dev->minor);
2696fb57	85	/* deal with a pci board */
0882eaa6 DS	86
	87	if (thisboard->bustype == pcmcia) {
	88	if (link == NULL) {
	89	printk(" no pcmcia cards found\n");
	90	return -EIO;
	91	}
	92	iobase = link->io.BasePort1;
	93	} else {
	94	printk(" bug! board does not have PCMCIA bustype\n");
	95	return -EINVAL;
	96	}
	97
	98	printk("\n");
	99
	100	return das08_common_attach(dev, iobase);
	101	}
	102
	103	/*======================================================================
	104
	105	The following pcmcia code for the pcm-das08 is adapted from the
	106	dummy_cs.c driver of the Linux PCMCIA Card Services package.
	107
	108	The initial developer of the original code is David A. Hinds
	109	<dahinds@users.sourceforge.net>. Portions created by David A. Hinds
	110	are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
	111
	112	======================================================================*/
	113
0882eaa6 DS	114	static void das08_pcmcia_config(struct pcmcia_device *link);
	115	static void das08_pcmcia_release(struct pcmcia_device *link);
	116	static int das08_pcmcia_suspend(struct pcmcia_device *p_dev);
	117	static int das08_pcmcia_resume(struct pcmcia_device *p_dev);
	118
	119	/*
	120	The attach() and detach() entry points are used to create and destroy
	121	"instances" of the driver, where each instance represents everything
	122	needed to manage one actual PCMCIA card.
	123	*/
	124
	125	static int das08_pcmcia_attach(struct pcmcia_device *);
	126	static void das08_pcmcia_detach(struct pcmcia_device *);
	127
	128	/*
	129	You'll also need to prototype all the functions that will actually
	130	be used to talk to your device. See 'memory_cs' for a good example
	131	of a fully self-sufficient driver; the other drivers rely more or
	132	less on other parts of the kernel.
	133	*/
	134
	135	/*
	136	The dev_info variable is the "key" that is used to match up this
	137	device driver with appropriate cards, through the card configuration
	138	database.
	139	*/
	140
	141	static const dev_info_t dev_info = "pcm-das08";
	142
d8961467	143	struct local_info_t {
0882eaa6	144	struct pcmcia_device *link;
0882eaa6 DS	145	int stop;
0882eaa6 DS	146	struct bus_operations *bus;
d8961467	147	};
0882eaa6 DS	148
	149	/*======================================================================
	150
	151	das08_pcmcia_attach() creates an "instance" of the driver, allocating
	152	local data structures for one device. The device is registered
	153	with Card Services.
	154
	155	The dev_link structure is initialized, but we don't actually
	156	configure the card at this point -- we wait until we receive a
	157	card insertion event.
	158
	159	======================================================================*/
	160
	161	static int das08_pcmcia_attach(struct pcmcia_device *link)
	162	{
d8961467	163	struct local_info_t *local;
0882eaa6	164
55a19b39	165	dev_dbg(&link->dev, "das08_pcmcia_attach()\n");
0882eaa6 DS	166
0882eaa6 DS	167	/* Allocate space for private device-specific data */
d8961467	168	local = kzalloc(sizeof(struct local_info_t), GFP_KERNEL);
0882eaa6 DS	169	if (!local)
	170	return -ENOMEM;
	171	local->link = link;
	172	link->priv = local;
	173
0882eaa6 DS	174	/*
	175	General socket configuration defaults can go here. In this
	176	client, we assume very little, and rely on the CIS for almost
	177	everything. In most clients, many details (i.e., number, sizes,
	178	and attributes of IO windows) are fixed by the nature of the
	179	device, and can be hard-wired here.
	180	*/
	181	link->conf.Attributes = 0;
	182	link->conf.IntType = INT_MEMORY_AND_IO;
	183
	184	cur_dev = link;
	185
	186	das08_pcmcia_config(link);
	187
	188	return 0;
	189	} /* das08_pcmcia_attach */
	190
	191	/*======================================================================
	192
	193	This deletes a driver "instance". The device is de-registered
	194	with Card Services. If it has been released, all local data
	195	structures are freed. Otherwise, the structures will be freed
	196	when the device is released.
	197
	198	======================================================================*/
	199
	200	static void das08_pcmcia_detach(struct pcmcia_device *link)
	201	{
	202
55a19b39	203	dev_dbg(&link->dev, "das08_pcmcia_detach\n");
0882eaa6	204
df3f97a2 JMC	205	((struct local_info_t *)link->priv)->stop = 1;
df3f97a2 JMC	206	das08_pcmcia_release(link);
0882eaa6	207
d8961467	208	/* This points to the parent struct local_info_t struct */
0882eaa6 DS	209	if (link->priv)
	210	kfree(link->priv);
	211
	212	} /* das08_pcmcia_detach */
	213
55a19b39 DB	214
	215	static int das08_pcmcia_config_loop(struct pcmcia_device *p_dev,
	216	cistpl_cftable_entry_t *cfg,
	217	cistpl_cftable_entry_t *dflt,
	218	unsigned int vcc,
	219	void *priv_data)
	220	{
	221	if (cfg->index == 0)
	222	return -ENODEV;
	223
	224	/* Do we need to allocate an interrupt? */
eb14120f	225	p_dev->conf.Attributes \|= CONF_ENABLE_IRQ;
55a19b39 DB	226
	227	/* IO window settings */
	228	p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0;
	229	if ((cfg->io.nwin > 0) \|\| (dflt->io.nwin > 0)) {
	230	cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io;
	231	p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
	232	if (!(io->flags & CISTPL_IO_8BIT))
	233	p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
	234	if (!(io->flags & CISTPL_IO_16BIT))
	235	p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
	236	p_dev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
	237	p_dev->io.BasePort1 = io->win[0].base;
	238	p_dev->io.NumPorts1 = io->win[0].len;
	239	if (io->nwin > 1) {
	240	p_dev->io.Attributes2 = p_dev->io.Attributes1;
	241	p_dev->io.BasePort2 = io->win[1].base;
	242	p_dev->io.NumPorts2 = io->win[1].len;
	243	}
	244	/* This reserves IO space but doesn't actually enable it */
	245	return pcmcia_request_io(p_dev, &p_dev->io);
	246	}
	247	return 0;
	248	}
	249
	250
0882eaa6 DS	251	/*======================================================================
	252
	253	das08_pcmcia_config() is scheduled to run after a CARD_INSERTION event
	254	is received, to configure the PCMCIA socket, and to make the
	255	device available to the system.
	256
	257	======================================================================*/
	258
	259	static void das08_pcmcia_config(struct pcmcia_device *link)
	260	{
55a19b39	261	int ret;
0882eaa6	262
55a19b39	263	dev_dbg(&link->dev, "das08_pcmcia_config\n");
c3744138	264
55a19b39 DB	265	ret = pcmcia_loop_config(link, das08_pcmcia_config_loop, NULL);
	266	if (ret) {
	267	dev_warn(&link->dev, "no configuration found\n");
	268	goto failed;
0882eaa6 DS	269	}
0882eaa6 DS	270
eb14120f DB	271	if (!link->irq)
eb14120f DB	272	goto failed;
0882eaa6 DS	273
	274	/*
	275	This actually configures the PCMCIA socket -- setting up
	276	the I/O windows and the interrupt mapping, and putting the
	277	card and host interface into "Memory and IO" mode.
	278	*/
55a19b39 DB	279	ret = pcmcia_request_configuration(link, &link->conf);
	280	if (ret)
	281	goto failed;
0882eaa6	282
0882eaa6	283	/* Finally, report what we've done */
df3f97a2	284	dev_info(&link->dev, "index 0x%02x", link->conf.ConfigIndex);
0882eaa6	285	if (link->conf.Attributes & CONF_ENABLE_IRQ)
eb14120f	286	printk(", irq %u", link->irq);
0882eaa6 DS	287	if (link->io.NumPorts1)
0882eaa6 DS	288	printk(", io 0x%04x-0x%04x", link->io.BasePort1,
0a85b6f0	289	link->io.BasePort1 + link->io.NumPorts1 - 1);
0882eaa6 DS	290	if (link->io.NumPorts2)
0882eaa6 DS	291	printk(" & 0x%04x-0x%04x", link->io.BasePort2,
0a85b6f0	292	link->io.BasePort2 + link->io.NumPorts2 - 1);
0882eaa6 DS	293	printk("\n");
	294
	295	return;
	296
55a19b39	297	failed:
0882eaa6 DS	298	das08_pcmcia_release(link);
	299
	300	} /* das08_pcmcia_config */
	301
	302	/*======================================================================
	303
	304	After a card is removed, das08_pcmcia_release() will unregister the
	305	device, and release the PCMCIA configuration. If the device is
	306	still open, this will be postponed until it is closed.
	307
	308	======================================================================*/
	309
	310	static void das08_pcmcia_release(struct pcmcia_device *link)
	311	{
55a19b39	312	dev_dbg(&link->dev, "das08_pcmcia_release\n");
0882eaa6 DS	313	pcmcia_disable_device(link);
	314	} /* das08_pcmcia_release */
	315
	316	/*======================================================================
	317
	318	The card status event handler. Mostly, this schedules other
	319	stuff to run after an event is received.
	320
	321	When a CARD_REMOVAL event is received, we immediately set a
	322	private flag to block future accesses to this device. All the
	323	functions that actually access the device should check this flag
	324	to make sure the card is still present.
	325
	326	======================================================================*/
	327
	328	static int das08_pcmcia_suspend(struct pcmcia_device *link)
	329	{
d8961467	330	struct local_info_t *local = link->priv;
0882eaa6 DS	331	/* Mark the device as stopped, to block IO until later */
	332	local->stop = 1;
	333
	334	return 0;
	335	} /* das08_pcmcia_suspend */
	336
	337	static int das08_pcmcia_resume(struct pcmcia_device *link)
	338	{
d8961467	339	struct local_info_t *local = link->priv;
0882eaa6 DS	340
	341	local->stop = 0;
	342	return 0;
	343	} /* das08_pcmcia_resume */
	344
	345	/====================================================================/
	346
	347	static struct pcmcia_device_id das08_cs_id_table[] = {
	348	PCMCIA_DEVICE_MANF_CARD(0x01c5, 0x4001),
	349	PCMCIA_DEVICE_NULL
	350	};
	351
	352	MODULE_DEVICE_TABLE(pcmcia, das08_cs_id_table);
	353
	354	struct pcmcia_driver das08_cs_driver = {
	355	.probe = das08_pcmcia_attach,
	356	.remove = das08_pcmcia_detach,
	357	.suspend = das08_pcmcia_suspend,
	358	.resume = das08_pcmcia_resume,
	359	.id_table = das08_cs_id_table,
	360	.owner = THIS_MODULE,
	361	.drv = {
0a85b6f0	362	.name = dev_info,
0882eaa6 DS	363	},
	364	};
	365
	366	static int __init init_das08_pcmcia_cs(void)
	367	{
0882eaa6 DS	368	pcmcia_register_driver(&das08_cs_driver);
	369	return 0;
	370	}
	371
	372	static void __exit exit_das08_pcmcia_cs(void)
	373	{
55a19b39	374	pr_debug("das08_pcmcia_cs: unloading\n");
0882eaa6 DS	375	pcmcia_unregister_driver(&das08_cs_driver);
	376	}
	377
	378	static int __init das08_cs_init_module(void)
	379	{
	380	int ret;
	381
	382	ret = init_das08_pcmcia_cs();
	383	if (ret < 0)
	384	return ret;
	385
	386	return comedi_driver_register(&driver_das08_cs);
	387	}
	388
	389	static void __exit das08_cs_exit_module(void)
	390	{
	391	exit_das08_pcmcia_cs();
	392	comedi_driver_unregister(&driver_das08_cs);
	393	}
	394
	395	MODULE_LICENSE("GPL");
	396	module_init(das08_cs_init_module);
	397	module_exit(das08_cs_exit_module);