ni_daq_dio24.c revision 5a1daad46a99f1f33b2559ff87a0fb9b01a07c87 
1/*
2    comedi/drivers/ni_daq_dio24.c
3    Driver for National Instruments PCMCIA DAQ-Card DIO-24
4    Copyright (C) 2002 Daniel Vecino Castel <dvecino@able.es>
5
6    PCMCIA crap at end of file is adapted from dummy_cs.c 1.31 2001/08/24 12:13:13
7    from the pcmcia package.
8    The initial developer of the pcmcia dummy_cs.c code is David A. Hinds
9    <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
10    are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
11
12    This program is free software; you can redistribute it and/or modify
13    it under the terms of the GNU General Public License as published by
14    the Free Software Foundation; either version 2 of the License, or
15    (at your option) any later version.
16
17    This program is distributed in the hope that it will be useful,
18    but WITHOUT ANY WARRANTY; without even the implied warranty of
19    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20    GNU General Public License for more details.
21
22    You should have received a copy of the GNU General Public License
23    along with this program; if not, write to the Free Software
24    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25
26************************************************************************
27*/
28/*
29Driver: ni_daq_dio24
30Description: National Instruments PCMCIA DAQ-Card DIO-24
31Author: Daniel Vecino Castel <dvecino@able.es>
32Devices: [National Instruments] PCMCIA DAQ-Card DIO-24 (ni_daq_dio24)
33Status: ?
34Updated: Thu, 07 Nov 2002 21:53:06 -0800
35
36This is just a wrapper around the 8255.o driver to properly handle
37the PCMCIA interface.
38*/
39
40#include <linux/interrupt.h>
41#include <linux/slab.h>
42#include "../comedidev.h"
43
44#include <linux/ioport.h>
45
46#include "8255.h"
47
48#include <pcmcia/cistpl.h>
49#include <pcmcia/cisreg.h>
50#include <pcmcia/ds.h>
51
52static int dio24_pcmcia_config_loop(struct pcmcia_device *p_dev,
53				    void *priv_data)
54{
55	if (p_dev->config_index == 0)
56		return -EINVAL;
57
58	return pcmcia_request_io(p_dev);
59}
60
61static int dio24_auto_attach(struct comedi_device *dev,
62			     unsigned long context)
63{
64	struct pcmcia_device *link = comedi_to_pcmcia_dev(dev);
65	struct comedi_subdevice *s;
66	int ret;
67
68	dev->board_name = dev->driver->driver_name;
69
70	link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_AUDIO |
71			       CONF_AUTO_SET_IO;
72
73	ret = pcmcia_loop_config(link, dio24_pcmcia_config_loop, NULL);
74	if (ret)
75		return ret;
76
77	ret = pcmcia_enable_device(link);
78	if (ret)
79		return ret;
80	dev->iobase = link->resource[0]->start;
81
82	ret = comedi_alloc_subdevices(dev, 1);
83	if (ret)
84		return ret;
85
86	/* 8255 dio */
87	s = &dev->subdevices[0];
88	ret = subdev_8255_init(dev, s, NULL, dev->iobase);
89	if (ret)
90		return ret;
91
92	return 0;
93}
94
95static void dio24_detach(struct comedi_device *dev)
96{
97	struct pcmcia_device *link = comedi_to_pcmcia_dev(dev);
98
99	if (dev->subdevices)
100		subdev_8255_cleanup(dev, &dev->subdevices[0]);
101	if (dev->iobase)
102		pcmcia_disable_device(link);
103}
104
105static struct comedi_driver driver_dio24 = {
106	.driver_name	= "ni_daq_dio24",
107	.module		= THIS_MODULE,
108	.auto_attach	= dio24_auto_attach,
109	.detach		= dio24_detach,
110};
111
112static int dio24_cs_attach(struct pcmcia_device *link)
113{
114	return comedi_pcmcia_auto_config(link, &driver_dio24);
115}
116
117static const struct pcmcia_device_id dio24_cs_ids[] = {
118	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x475c),	/* daqcard-dio24 */
119	PCMCIA_DEVICE_NULL
120};
121MODULE_DEVICE_TABLE(pcmcia, dio24_cs_ids);
122
123static struct pcmcia_driver dio24_cs_driver = {
124	.name		= "ni_daq_dio24",
125	.owner		= THIS_MODULE,
126	.id_table	= dio24_cs_ids,
127	.probe		= dio24_cs_attach,
128	.remove		= comedi_pcmcia_auto_unconfig,
129};
130module_comedi_pcmcia_driver(driver_dio24, dio24_cs_driver);
131
132MODULE_AUTHOR("Daniel Vecino Castel <dvecino@able.es>");
133MODULE_DESCRIPTION(
134	"Comedi driver for National Instruments PCMCIA DAQ-Card DIO-24");
135MODULE_LICENSE("GPL");
136