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
|
/*
comedi/drivers/aio_iiro_16.c
Driver for Access I/O Products PC-104 AIO-IIRO-16 Digital I/O board
Copyright (C) 2006 C&C Technologies, Inc.
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.
*/
/*
Driver: aio_iiro_16
Description: Access I/O Products PC-104 IIRO16 Relay And Isolated Input Board
Author: Zachary Ware <zach.ware@cctechnol.com>
Devices:
[Access I/O] PC-104 AIO12-8
Status: experimental
Configuration Options:
[0] - I/O port base address
*/
#include <linux/module.h>
#include "../comedidev.h"
#define AIO_IIRO_16_RELAY_0_7 0x00
#define AIO_IIRO_16_INPUT_0_7 0x01
#define AIO_IIRO_16_IRQ 0x02
#define AIO_IIRO_16_RELAY_8_15 0x04
#define AIO_IIRO_16_INPUT_8_15 0x05
static int aio_iiro_16_dio_insn_bits_write(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned int *data)
{
if (comedi_dio_update_state(s, data)) {
outb(s->state & 0xff, dev->iobase + AIO_IIRO_16_RELAY_0_7);
outb((s->state >> 8) & 0xff,
dev->iobase + AIO_IIRO_16_RELAY_8_15);
}
data[1] = s->state;
return insn->n;
}
static int aio_iiro_16_dio_insn_bits_read(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned int *data)
{
data[1] = 0;
data[1] |= inb(dev->iobase + AIO_IIRO_16_INPUT_0_7);
data[1] |= inb(dev->iobase + AIO_IIRO_16_INPUT_8_15) << 8;
return insn->n;
}
static int aio_iiro_16_attach(struct comedi_device *dev,
struct comedi_devconfig *it)
{
struct comedi_subdevice *s;
int ret;
ret = comedi_request_region(dev, it->options[0], 0x8);
if (ret)
return ret;
ret = comedi_alloc_subdevices(dev, 2);
if (ret)
return ret;
s = &dev->subdevices[0];
s->type = COMEDI_SUBD_DIO;
s->subdev_flags = SDF_WRITABLE;
s->n_chan = 16;
s->maxdata = 1;
s->range_table = &range_digital;
s->insn_bits = aio_iiro_16_dio_insn_bits_write;
s = &dev->subdevices[1];
s->type = COMEDI_SUBD_DIO;
s->subdev_flags = SDF_READABLE;
s->n_chan = 16;
s->maxdata = 1;
s->range_table = &range_digital;
s->insn_bits = aio_iiro_16_dio_insn_bits_read;
return 0;
}
static struct comedi_driver aio_iiro_16_driver = {
.driver_name = "aio_iiro_16",
.module = THIS_MODULE,
.attach = aio_iiro_16_attach,
.detach = comedi_legacy_detach,
};
module_comedi_driver(aio_iiro_16_driver);
MODULE_AUTHOR("Comedi http://www.comedi.org");
MODULE_DESCRIPTION("Comedi low-level driver");
MODULE_LICENSE("GPL");
|
