3 comedi/drivers/aio_iiro_16.c
5 Driver for Acces I/O Products PC-104 AIO-IIRO-16 Digital I/O board
6 Copyright (C) 2006 C&C Technologies, Inc.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 Description: Acces I/O Products PC-104 IIRO16 Relay And Isolated Input Board
27 Author: Zachary Ware <zach.ware@cctechnol.com>
29 [Acces I/O] PC-104 AIO12-8
32 Configuration Options:
33 [0] - I/O port base address
37 #include "../comedidev.h"
38 #include <linux/ioport.h>
40 #define AIO_IIRO_16_SIZE 0x08
41 #define AIO_IIRO_16_RELAY_0_7 0x00
42 #define AIO_IIRO_16_INPUT_0_7 0x01
43 #define AIO_IIRO_16_IRQ 0x02
44 #define AIO_IIRO_16_RELAY_8_15 0x04
45 #define AIO_IIRO_16_INPUT_8_15 0x05
47 struct aio_iiro_16_board
{
53 static const struct aio_iiro_16_board aio_iiro_16_boards
[] = {
55 .name
= "aio_iiro_16",
60 #define thisboard ((const struct aio_iiro_16_board *) dev->board_ptr)
62 struct aio_iiro_16_private
{
64 struct pci_dev
*pci_dev
;
65 unsigned int ao_readback
[2];
68 #define devpriv ((struct aio_iiro_16_private *) dev->private)
70 static int aio_iiro_16_attach(struct comedi_device
*dev
,
71 struct comedi_devconfig
*it
);
73 static int aio_iiro_16_detach(struct comedi_device
*dev
);
75 static struct comedi_driver driver_aio_iiro_16
= {
76 .driver_name
= "aio_iiro_16",
77 .module
= THIS_MODULE
,
78 .attach
= aio_iiro_16_attach
,
79 .detach
= aio_iiro_16_detach
,
80 .board_name
= &aio_iiro_16_boards
[0].name
,
81 .offset
= sizeof(struct aio_iiro_16_board
),
82 .num_names
= ARRAY_SIZE(aio_iiro_16_boards
),
85 static int aio_iiro_16_dio_insn_bits_read(struct comedi_device
*dev
,
86 struct comedi_subdevice
*s
,
87 struct comedi_insn
*insn
,
90 static int aio_iiro_16_dio_insn_bits_write(struct comedi_device
*dev
,
91 struct comedi_subdevice
*s
,
92 struct comedi_insn
*insn
,
95 static int aio_iiro_16_attach(struct comedi_device
*dev
,
96 struct comedi_devconfig
*it
)
99 struct comedi_subdevice
*s
;
101 printk(KERN_INFO
"comedi%d: aio_iiro_16: ", dev
->minor
);
103 dev
->board_name
= thisboard
->name
;
105 iobase
= it
->options
[0];
107 if (!request_region(iobase
, AIO_IIRO_16_SIZE
, dev
->board_name
)) {
108 printk("I/O port conflict");
112 dev
->iobase
= iobase
;
114 if (alloc_private(dev
, sizeof(struct aio_iiro_16_private
)) < 0)
117 if (alloc_subdevices(dev
, 2) < 0)
120 s
= dev
->subdevices
+ 0;
121 s
->type
= COMEDI_SUBD_DIO
;
122 s
->subdev_flags
= SDF_WRITABLE
;
125 s
->range_table
= &range_digital
;
126 s
->insn_bits
= aio_iiro_16_dio_insn_bits_write
;
128 s
= dev
->subdevices
+ 1;
129 s
->type
= COMEDI_SUBD_DIO
;
130 s
->subdev_flags
= SDF_READABLE
;
133 s
->range_table
= &range_digital
;
134 s
->insn_bits
= aio_iiro_16_dio_insn_bits_read
;
136 printk("attached\n");
141 static int aio_iiro_16_detach(struct comedi_device
*dev
)
143 printk(KERN_INFO
"comedi%d: aio_iiro_16: remove\n", dev
->minor
);
146 release_region(dev
->iobase
, AIO_IIRO_16_SIZE
);
151 static int aio_iiro_16_dio_insn_bits_write(struct comedi_device
*dev
,
152 struct comedi_subdevice
*s
,
153 struct comedi_insn
*insn
,
160 s
->state
&= ~data
[0];
161 s
->state
|= data
[0] & data
[1];
162 outb(s
->state
& 0xff, dev
->iobase
+ AIO_IIRO_16_RELAY_0_7
);
163 outb((s
->state
>> 8) & 0xff,
164 dev
->iobase
+ AIO_IIRO_16_RELAY_8_15
);
172 static int aio_iiro_16_dio_insn_bits_read(struct comedi_device
*dev
,
173 struct comedi_subdevice
*s
,
174 struct comedi_insn
*insn
,
181 data
[1] |= inb(dev
->iobase
+ AIO_IIRO_16_INPUT_0_7
);
182 data
[1] |= inb(dev
->iobase
+ AIO_IIRO_16_INPUT_8_15
) << 8;
187 static int __init
driver_aio_iiro_16_init_module(void)
189 return comedi_driver_register(&driver_aio_iiro_16
);
192 static void __exit
driver_aio_iiro_16_cleanup_module(void)
194 comedi_driver_unregister(&driver_aio_iiro_16
);
197 module_init(driver_aio_iiro_16_init_module
);
198 module_exit(driver_aio_iiro_16_cleanup_module
);
200 MODULE_AUTHOR("Comedi http://www.comedi.org");
201 MODULE_DESCRIPTION("Comedi low-level driver");
202 MODULE_LICENSE("GPL");