1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
|
/*
comedi/drivers/ni_daq_dio24.c
Driver for National Instruments PCMCIA DAQ-Card DIO-24
Copyright (C) 2002 Daniel Vecino Castel <dvecino@able.es>
PCMCIA crap at end of file is adapted from dummy_cs.c 1.31 2001/08/24 12:13:13
from the pcmcia package.
The initial developer of the pcmcia dummy_cs.c 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.
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_dio24
Description: National Instruments PCMCIA DAQ-Card DIO-24
Author: Daniel Vecino Castel <dvecino@able.es>
Devices: [National Instruments] PCMCIA DAQ-Card DIO-24 (ni_daq_dio24)
Status: ?
Updated: Thu, 07 Nov 2002 21:53:06 -0800
This is just a wrapper around the 8255.o driver to properly handle
the PCMCIA interface.
*/
#include <linux/interrupt.h>
#include <linux/slab.h>
#include "../comedidev.h"
#include <linux/ioport.h>
#include "8255.h"
#include <pcmcia/cistpl.h>
#include <pcmcia/cisreg.h>
#include <pcmcia/ds.h>
static struct pcmcia_device *pcmcia_cur_dev;
#define DIO24_SIZE 4 /* size of io region used by board */
enum dio24_bustype { pcmcia_bustype };
struct dio24_board_struct {
const char *name;
int device_id; /* device id for pcmcia board */
enum dio24_bustype bustype; /* PCMCIA */
int have_dio; /* have 8255 chip */
/* 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);
};
static const struct dio24_board_struct dio24_boards[] = {
{
.name = "daqcard-dio24",
.device_id = 0x475c, /* 0x10b is manufacturer id, 0x475c is device id */
.bustype = pcmcia_bustype,
.have_dio = 1,
},
{
.name = "ni_daq_dio24",
.device_id = 0x475c, /* 0x10b is manufacturer id, 0x475c is device id */
.bustype = pcmcia_bustype,
.have_dio = 1,
},
};
static int dio24_attach(struct comedi_device *dev, struct comedi_devconfig *it)
{
const struct dio24_board_struct *thisboard = comedi_board(dev);
struct comedi_subdevice *s;
unsigned long iobase = 0;
struct pcmcia_device *link;
int ret;
/* 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->resource[0]->start;
break;
default:
pr_err("bug! couldn't determine board type\n");
return -EINVAL;
break;
}
pr_debug("comedi%d: ni_daq_dio24: %s, io 0x%lx", dev->minor,
thisboard->name, iobase);
if (iobase == 0) {
pr_err("io base address is zero!\n");
return -EINVAL;
}
dev->iobase = iobase;
dev->board_name = thisboard->name;
ret = comedi_alloc_subdevices(dev, 1);
if (ret)
return ret;
/* 8255 dio */
s = &dev->subdevices[0];
subdev_8255_init(dev, s, NULL, dev->iobase);
return 0;
};
static void dio24_detach(struct comedi_device *dev)
{
const struct dio24_board_struct *thisboard = comedi_board(dev);
struct comedi_subdevice *s;
if (dev->subdevices) {
s = &dev->subdevices[0];
subdev_8255_cleanup(dev, s);
}
if (thisboard->bustype != pcmcia_bustype && dev->iobase)
release_region(dev->iobase, DIO24_SIZE);
if (dev->irq)
free_irq(dev->irq, dev);
};
static struct comedi_driver driver_dio24 = {
.driver_name = "ni_daq_dio24",
.module = THIS_MODULE,
.attach = dio24_attach,
.detach = dio24_detach,
.num_names = ARRAY_SIZE(dio24_boards),
.board_name = &dio24_boards[0].name,
.offset = sizeof(struct dio24_board_struct),
};
static int dio24_pcmcia_config_loop(struct pcmcia_device *p_dev,
void *priv_data)
{
if (p_dev->config_index == 0)
return -EINVAL;
return pcmcia_request_io(p_dev);
}
static int dio24_cs_attach(struct pcmcia_device *link)
{
int ret;
link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_AUDIO |
CONF_AUTO_SET_IO;
ret = pcmcia_loop_config(link, dio24_pcmcia_config_loop, NULL);
if (ret) {
dev_warn(&link->dev, "no configuration found\n");
goto failed;
}
if (!link->irq)
goto failed;
ret = pcmcia_enable_device(link);
if (ret)
goto failed;
pcmcia_cur_dev = link;
return 0;
failed:
pcmcia_disable_device(link);
return ret;
}
static void dio24_cs_detach(struct pcmcia_device *link)
{
pcmcia_disable_device(link);
}
static const struct pcmcia_device_id dio24_cs_ids[] = {
/* N.B. These IDs should match those in dio24_boards */
PCMCIA_DEVICE_MANF_CARD(0x010b, 0x475c), /* daqcard-dio24 */
PCMCIA_DEVICE_NULL
};
MODULE_DEVICE_TABLE(pcmcia, dio24_cs_ids);
static struct pcmcia_driver dio24_cs_driver = {
.name = "ni_daq_dio24",
.owner = THIS_MODULE,
.id_table = dio24_cs_ids,
.probe = dio24_cs_attach,
.remove = dio24_cs_detach,
};
module_comedi_pcmcia_driver(driver_dio24, dio24_cs_driver);
MODULE_AUTHOR("Daniel Vecino Castel <dvecino@able.es>");
MODULE_DESCRIPTION(
"Comedi driver for National Instruments PCMCIA DAQ-Card DIO-24");
MODULE_LICENSE("GPL");
|
