Staging: comedi: add ni_daq_700 driver

Driver for National Instruments PCMCIA DAQCard-700 DIO only

From: Fred Brooks <nsaspook@nsaspook.com>
Cc: David Schleef <ds@schleef.org>
Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Frank Mori Hess <fmhess@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/comedi/drivers/ni_daq_700.c

+/*
+ *     comedi/drivers/ni_daq_700.c
+ *     Driver for DAQCard-700 DIO only
+ *     copied from 8255
+ *
+ *     COMEDI - Linux Control and Measurement Device Interface
+ *     Copyright (C) 1998 David A. Schleef <ds@schleef.org>
+ *
+ *     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: ni_daq_700
+Description: National Instruments PCMCIA DAQCard-700 DIO only
+Author: Fred Brooks <nsaspook@nsaspook.com>,
+  based on ni_daq_dio24 by Daniel Vecino Castel <dvecino@able.es>
+Devices: [National Instruments] PCMCIA DAQ-Card-700 (ni_daq_700)
+Status: works
+Updated: Thu, 21 Feb 2008 12:07:20 +0000
+
+The daqcard-700 appears in Comedi as a single digital I/O subdevice with
+16 channels.  The channel 0 corresponds to the daqcard-700's output
+port, bit 0; channel 8 corresponds to the input port, bit 0.
+
+Direction configuration: channels 0-7 output, 8-15 input (8225 device
+emu as port A output, port B input, port C N/A).
+
+IRQ is assigned but not used.
+*/
+
+#include "../comedidev.h"
+
+#include <linux/ioport.h>
+#include <linux/version.h>
+
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/cisreg.h>
+#include <pcmcia/ds.h>
+
+static struct pcmcia_device *pcmcia_cur_dev = NULL;
+
+#define DIO700_SIZE 8		// size of io region used by board
+
+static int dio700_attach(comedi_device * dev, comedi_devconfig * it);
+static int dio700_detach(comedi_device * dev);
+
+enum dio700_bustype { pcmcia_bustype };
+
+typedef struct dio700_board_struct {
+	const char *name;
+	int device_id;		// device id for pcmcia board
+	enum dio700_bustype bustype;	// PCMCIA
+	int have_dio;		// have daqcard-700 dio
+	// function pointers so we can use inb/outb or readb/writeb
+	// as appropriate
+	unsigned int (*read_byte) (unsigned int address);
+	void (*write_byte) (unsigned int byte, unsigned int address);
+} dio700_board;
+
+static const dio700_board dio700_boards[] = {
+	{
+	      name:	"daqcard-700",
+	      device_id:0x4743,// 0x10b is manufacturer id, 0x4743 is device id
+	      bustype:	pcmcia_bustype,
+	      have_dio:1,
+		},
+	{
+	      name:	"ni_daq_700",
+	      device_id:0x4743,// 0x10b is manufacturer id, 0x4743 is device id
+	      bustype:	pcmcia_bustype,
+	      have_dio:1,
+		},
+};
+
+/*
+ * Useful for shorthand access to the particular board structure
+ */
+#define thisboard ((const dio700_board *)dev->board_ptr)
+
+typedef struct {
+	int data;		/* number of data points left to be taken */
+} dio700_private;
+
+#define devpriv ((dio700_private *)dev->private)
+
+static comedi_driver driver_dio700 = {
+      driver_name:"ni_daq_700",
+      module:THIS_MODULE,
+      attach:dio700_attach,
+      detach:dio700_detach,
+      num_names:sizeof(dio700_boards) / sizeof(dio700_board),
+      board_name:&dio700_boards[0].name,
+      offset:sizeof(dio700_board),
+};
+
+/*	the real driver routines	*/
+
+#define _700_SIZE 8
+
+#define _700_DATA 0
+
+#define DIO_W		0x04
+#define DIO_R		0x05
+
+struct subdev_700_struct {
+	unsigned long cb_arg;
+	int (*cb_func) (int, int, int, unsigned long);
+	int have_irq;
+};
+
+#define CALLBACK_ARG	(((struct subdev_700_struct *)s->private)->cb_arg)
+#define CALLBACK_FUNC	(((struct subdev_700_struct *)s->private)->cb_func)
+#define subdevpriv	((struct subdev_700_struct *)s->private)
+
+static void do_config(comedi_device * dev, comedi_subdevice * s);
+
+void subdev_700_interrupt(comedi_device * dev, comedi_subdevice * s)
+{
+	sampl_t d;
+
+	d = CALLBACK_FUNC(0, _700_DATA, 0, CALLBACK_ARG);
+
+	comedi_buf_put(s->async, d);
+	s->async->events |= COMEDI_CB_EOS;
+
+	comedi_event(dev, s);
+}
+
+static int subdev_700_cb(int dir, int port, int data, unsigned long arg)
+{
+	/* port is always A for output and B for input (8255 emu) */
+	unsigned long iobase = arg;
+
+	if (dir) {
+		outb(data, iobase + DIO_W);
+		return 0;
+	} else {
+		return inb(iobase + DIO_R);
+	}
+}
+
+static int subdev_700_insn(comedi_device * dev, comedi_subdevice * s,
+	comedi_insn * insn, lsampl_t * data)
+{
+	if (data[0]) {
+		s->state &= ~data[0];
+		s->state |= (data[0] & data[1]);
+
+		if (data[0] & 0xff)
+			CALLBACK_FUNC(1, _700_DATA, s->state & 0xff,
+				CALLBACK_ARG);
+	}
+
+	data[1] = s->state & 0xff;
+	data[1] |= CALLBACK_FUNC(0, _700_DATA, 0, CALLBACK_ARG) << 8;
+
+	return 2;
+}
+
+static int subdev_700_insn_config(comedi_device * dev, comedi_subdevice * s,
+	comedi_insn * insn, lsampl_t * data)
+{
+
+	switch (data[0]) {
+	case INSN_CONFIG_DIO_INPUT:
+		break;
+	case INSN_CONFIG_DIO_OUTPUT:
+		break;
+	case INSN_CONFIG_DIO_QUERY:
+		data[1] =
+			(s->io_bits & (1 << CR_CHAN(insn->
+					chanspec))) ? COMEDI_OUTPUT :
+			COMEDI_INPUT;
+		return insn->n;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 1;
+}
+
+static void do_config(comedi_device * dev, comedi_subdevice * s)
+{				/* use powerup defaults */
+	return;
+}
+
+static int subdev_700_cmdtest(comedi_device * dev, comedi_subdevice * s,
+	comedi_cmd * cmd)
+{
+	int err = 0;
+	unsigned int tmp;
+
+	/* step 1 */
+
+	tmp = cmd->start_src;
+	cmd->start_src &= TRIG_NOW;
+	if (!cmd->start_src || tmp != cmd->start_src)
+		err++;
+
+	tmp = cmd->scan_begin_src;
+	cmd->scan_begin_src &= TRIG_EXT;
+	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
+		err++;
+
+	tmp = cmd->convert_src;
+	cmd->convert_src &= TRIG_FOLLOW;
+	if (!cmd->convert_src || tmp != cmd->convert_src)
+		err++;
+
+	tmp = cmd->scan_end_src;
+	cmd->scan_end_src &= TRIG_COUNT;
+	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
+		err++;
+
+	tmp = cmd->stop_src;
+	cmd->stop_src &= TRIG_NONE;
+	if (!cmd->stop_src || tmp != cmd->stop_src)
+		err++;
+
+	if (err)
+		return 1;
+
+	/* step 2 */
+
+	if (err)
+		return 2;
+
+	/* step 3 */
+
+	if (cmd->start_arg != 0) {
+		cmd->start_arg = 0;
+		err++;
+	}
+	if (cmd->scan_begin_arg != 0) {
+		cmd->scan_begin_arg = 0;
+		err++;
+	}
+	if (cmd->convert_arg != 0) {
+		cmd->convert_arg = 0;
+		err++;
+	}
+	if (cmd->scan_end_arg != 1) {
+		cmd->scan_end_arg = 1;
+		err++;
+	}
+	if (cmd->stop_arg != 0) {
+		cmd->stop_arg = 0;
+		err++;
+	}
+
+	if (err)
+		return 3;
+
+	/* step 4 */
+
+	if (err)
+		return 4;
+
+	return 0;
+}
+
+static int subdev_700_cmd(comedi_device * dev, comedi_subdevice * s)
+{
+	/* FIXME */
+
+	return 0;
+}
+
+static int subdev_700_cancel(comedi_device * dev, comedi_subdevice * s)
+{
+	/* FIXME */
+
+	return 0;
+}
+
+int subdev_700_init(comedi_device * dev, comedi_subdevice * s, int (*cb) (int,
+		int, int, unsigned long), unsigned long arg)
+{
+	s->type = COMEDI_SUBD_DIO;
+	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
+	s->n_chan = 16;
+	s->range_table = &range_digital;
+	s->maxdata = 1;
+
+	s->private = kmalloc(sizeof(struct subdev_700_struct), GFP_KERNEL);
+	if (!s->private)
+		return -ENOMEM;
+
+	CALLBACK_ARG = arg;
+	if (cb == NULL) {
+		CALLBACK_FUNC = subdev_700_cb;
+	} else {
+		CALLBACK_FUNC = cb;
+	}
+	s->insn_bits = subdev_700_insn;
+	s->insn_config = subdev_700_insn_config;
+
+	s->state = 0;
+	s->io_bits = 0x00ff;
+	do_config(dev, s);
+
+	return 0;
+}
+
+int subdev_700_init_irq(comedi_device * dev, comedi_subdevice * s,
+	int (*cb) (int, int, int, unsigned long), unsigned long arg)
+{
+	int ret;
+
+	ret = subdev_700_init(dev, s, cb, arg);
+	if (ret < 0)
+		return ret;
+
+	s->do_cmdtest = subdev_700_cmdtest;
+	s->do_cmd = subdev_700_cmd;
+	s->cancel = subdev_700_cancel;
+
+	subdevpriv->have_irq = 1;
+
+	return 0;
+}
+
+void subdev_700_cleanup(comedi_device * dev, comedi_subdevice * s)
+{
+	if (s->private) {
+		if (subdevpriv->have_irq) {
+		}
+
+		kfree(s->private);
+	}
+}
+
+EXPORT_SYMBOL(subdev_700_init);
+EXPORT_SYMBOL(subdev_700_init_irq);
+EXPORT_SYMBOL(subdev_700_cleanup);
+EXPORT_SYMBOL(subdev_700_interrupt);
+
+static int dio700_attach(comedi_device * dev, comedi_devconfig * it)
+{
+	comedi_subdevice *s;
+	unsigned long iobase = 0;
+#ifdef incomplete
+	unsigned int irq = 0;
+#endif
+	struct pcmcia_device *link;
+
+	/* allocate and initialize dev->private */
+	if (alloc_private(dev, sizeof(dio700_private)) < 0)
+		return -ENOMEM;
+
+	// get base address, irq etc. based on bustype
+	switch (thisboard->bustype) {
+	case pcmcia_bustype:
+		link = pcmcia_cur_dev;	/* XXX hack */
+		if (!link)
+			return -EIO;
+		iobase = link->io.BasePort1;
+#ifdef incomplete
+		irq = link->irq.AssignedIRQ;
+#endif
+		break;
+	default:
+		printk("bug! couldn't determine board type\n");
+		return -EINVAL;
+		break;
+	}
+	printk("comedi%d: ni_daq_700: %s, io 0x%lx", dev->minor,
+		thisboard->name, iobase);
+#ifdef incomplete
+	if (irq) {
+		printk(", irq %u", irq);
+	}
+#endif
+
+	printk("\n");
+
+	if (iobase == 0) {
+		printk("io base address is zero!\n");
+		return -EINVAL;
+	}
+
+	dev->iobase = iobase;
+
+#ifdef incomplete
+	/* grab our IRQ */
+	dev->irq = irq;
+#endif
+
+	dev->board_name = thisboard->name;
+
+	if (alloc_subdevices(dev, 1) < 0)
+		return -ENOMEM;
+
+	/* DAQCard-700 dio */
+	s = dev->subdevices + 0;
+	subdev_700_init(dev, s, NULL, dev->iobase);
+
+	return 0;
+};
+
+static int dio700_detach(comedi_device * dev)
+{
+	printk("comedi%d: ni_daq_700: cs-remove\n", dev->minor);
+
+	if (dev->subdevices)
+		subdev_700_cleanup(dev, dev->subdevices + 0);
+
+	if (thisboard->bustype != pcmcia_bustype && dev->iobase)
+		release_region(dev->iobase, DIO700_SIZE);
+	if (dev->irq)
+		comedi_free_irq(dev->irq, dev);
+
+	return 0;
+};
+
+// PCMCIA crap
+
+/*
+   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_param(pc_debug, int, 0644);
+#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
+static char *version = "ni_daq_700.c, based on dummy_cs.c";
+#else
+#define DEBUG(n, args...)
+#endif
+
+/*====================================================================*/
+
+static void dio700_config(struct pcmcia_device *link);
+static void dio700_release(struct pcmcia_device *link);
+static int dio700_cs_suspend(struct pcmcia_device *p_dev);
+static int dio700_cs_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 dio700_cs_attach(struct pcmcia_device *);
+static void dio700_cs_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 = "ni_daq_700";
+
+typedef struct local_info_t {
+	struct pcmcia_device *link;
+	dev_node_t node;
+	int stop;
+	struct bus_operations *bus;
+} local_info_t;
+
+/*======================================================================
+
+    dio700_cs_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 dio700_cs_attach(struct pcmcia_device *link)
+{
+	local_info_t *local;
+
+	printk(KERN_INFO "ni_daq_700:  cs-attach\n");
+
+	DEBUG(0, "dio700_cs_attach()\n");
+
+	/* Allocate space for private device-specific data */
+	local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
+	if (!local)
+		return -ENOMEM;
+	local->link = link;
+	link->priv = local;
+
+	/* Interrupt setup */
+	link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
+	link->irq.IRQInfo1 = IRQ_LEVEL_ID;
+	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.
+	 */
+	link->conf.Attributes = 0;
+	link->conf.IntType = INT_MEMORY_AND_IO;
+
+	pcmcia_cur_dev = link;
+
+	dio700_config(link);
+
+	return 0;
+}				/* dio700_cs_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 dio700_cs_detach(struct pcmcia_device *link)
+{
+
+	printk(KERN_INFO "ni_daq_700: cs-detach!\n");
+
+	DEBUG(0, "dio700_cs_detach(0x%p)\n", link);
+
+	if (link->dev_node) {
+		((local_info_t *) link->priv)->stop = 1;
+		dio700_release(link);
+	}
+
+	/* This points to the parent local_info_t struct */
+	if (link->priv)
+		kfree(link->priv);
+
+}				/* dio700_cs_detach */
+
+/*======================================================================
+
+    dio700_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 dio700_config(struct pcmcia_device *link)
+{
+	local_info_t *dev = link->priv;
+	tuple_t tuple;
+	cisparse_t parse;
+	int last_ret;
+	u_char buf[64];
+	win_req_t req;
+	memreq_t map;
+	cistpl_cftable_entry_t dflt = { 0 };
+
+	printk(KERN_INFO "ni_daq_700:  cs-config\n");
+
+	DEBUG(0, "dio700_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;
+	if ((last_ret = pcmcia_get_first_tuple(link, &tuple)) != 0) {
+		cs_error(link, GetFirstTuple, last_ret);
+		goto cs_failed;
+	}
+	if ((last_ret = pcmcia_get_tuple_data(link, &tuple)) != 0) {
+		cs_error(link, GetTupleData, last_ret);
+		goto cs_failed;
+	}
+	if ((last_ret = pcmcia_parse_tuple(&tuple, &parse)) != 0) {
+		cs_error(link, ParseTuple, last_ret);
+		goto cs_failed;
+	}
+	link->conf.ConfigBase = parse.config.base;
+	link->conf.Present = parse.config.rmask[0];
+
+	/*
+	   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;
+	if ((last_ret = pcmcia_get_first_tuple(link, &tuple)) != 0) {
+		cs_error(link, GetFirstTuple, last_ret);
+		goto cs_failed;
+	}
+	while (1) {
+		cistpl_cftable_entry_t *cfg = &(parse.cftable_entry);
+		if (pcmcia_get_tuple_data(link, &tuple) != 0)
+			goto next_entry;
+		if (pcmcia_parse_tuple(&tuple, &parse) != 0)
+			goto next_entry;
+
+		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;
+		}
+
+		/* 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;
+			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 */
+			if (pcmcia_request_io(link, &link->io) != 0)
+				goto next_entry;
+		}
+
+		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;
+			if (req.Size < 0x1000)
+				req.Size = 0x1000;
+			req.AccessSpeed = 0;
+			if (pcmcia_request_window(&link, &req, &link->win))
+				goto next_entry;
+			map.Page = 0;
+			map.CardOffset = mem->win[0].card_addr;
+			if (pcmcia_map_mem_page(link->win, &map))
+				goto next_entry;
+		}
+		/* If we got this far, we're cool! */
+		break;
+
+	      next_entry:
+		if ((last_ret = pcmcia_get_next_tuple(link, &tuple)) != 0) {
+			cs_error(link, GetNextTuple, last_ret);
+			goto cs_failed;
+		}
+	}
+
+	/*
+	   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)
+		if ((last_ret = pcmcia_request_irq(link, &link->irq)) != 0) {
+			cs_error(link, RequestIRQ, last_ret);
+			goto cs_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.
+	 */
+	if ((last_ret = pcmcia_request_configuration(link, &link->conf)) != 0) {
+		cs_error(link, RequestConfiguration, last_ret);
+		goto cs_failed;
+	}
+
+	/*
+	   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, "ni_daq_700");
+	dev->node.major = dev->node.minor = 0;
+	link->dev_node = &dev->node;
+
+	/* Finally, report what we've done */
+	printk(KERN_INFO "%s: index 0x%02x",
+		dev->node.dev_name, link->conf.ConfigIndex);
+	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");
+
+	return;
+
+      cs_failed:
+	printk(KERN_INFO "ni_daq_700 cs failed");
+	dio700_release(link);
+
+}				/* dio700_config */
+
+static void dio700_release(struct pcmcia_device *link)
+{
+	DEBUG(0, "dio700_release(0x%p)\n", link);
+
+	pcmcia_disable_device(link);
+}				/* dio700_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 dio700_cs_suspend(struct pcmcia_device *link)
+{
+	local_info_t *local = link->priv;
+
+	/* Mark the device as stopped, to block IO until later */
+	local->stop = 1;
+	return 0;
+}				/* dio700_cs_suspend */
+
+static int dio700_cs_resume(struct pcmcia_device *link)
+{
+	local_info_t *local = link->priv;
+
+	local->stop = 0;
+	return 0;
+}				/* dio700_cs_resume */
+
+/*====================================================================*/
+
+static struct pcmcia_device_id dio700_cs_ids[] = {
+	/* N.B. These IDs should match those in dio700_boards */
+	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x4743),	/* daqcard-700 */
+	PCMCIA_DEVICE_NULL
+};
+
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pcmcia, dio700_cs_ids);
+
+struct pcmcia_driver dio700_cs_driver = {
+	.probe = dio700_cs_attach,
+	.remove = dio700_cs_detach,
+	.suspend = dio700_cs_suspend,
+	.resume = dio700_cs_resume,
+	.id_table = dio700_cs_ids,
+	.owner = THIS_MODULE,
+	.drv = {
+			.name = dev_info,
+		},
+};
+
+static int __init init_dio700_cs(void)
+{
+	printk("ni_daq_700:  cs-init \n");
+	DEBUG(0, "%s\n", version);
+	pcmcia_register_driver(&dio700_cs_driver);
+	return 0;
+}
+
+static void __exit exit_dio700_cs(void)
+{
+	DEBUG(0, "ni_daq_700: unloading\n");
+	pcmcia_unregister_driver(&dio700_cs_driver);
+}
+int __init init_module(void)
+{
+	int ret;
+
+	ret = init_dio700_cs();
+	if (ret < 0)
+		return ret;
+
+	return comedi_driver_register(&driver_dio700);
+}
+
+void __exit cleanup_module(void)
+{
+	exit_dio700_cs();
+	comedi_driver_unregister(&driver_dio700);
+}