3 comedi/drivers/aio_iiro_16.c
5 Driver for Access 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: Access I/O Products PC-104 IIRO16 Relay And Isolated Input Board
27 Author: Zachary Ware <zach.ware@cctechnol.com>
29 [Access 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 static int aio_iiro_16_dio_insn_bits_write(struct comedi_device *dev,
61 struct comedi_subdevice *s,
62 struct comedi_insn *insn,
67 s->state |= data[0] & data[1];
68 outb(s->state & 0xff, dev->iobase + AIO_IIRO_16_RELAY_0_7);
69 outb((s->state >> 8) & 0xff,
70 dev->iobase + AIO_IIRO_16_RELAY_8_15);
78 static int aio_iiro_16_dio_insn_bits_read(struct comedi_device *dev,
79 struct comedi_subdevice *s,
80 struct comedi_insn *insn,
84 data[1] |= inb(dev->iobase + AIO_IIRO_16_INPUT_0_7);
85 data[1] |= inb(dev->iobase + AIO_IIRO_16_INPUT_8_15) << 8;
90 static int aio_iiro_16_attach(struct comedi_device *dev,
91 struct comedi_devconfig *it)
93 const struct aio_iiro_16_board *board = comedi_board(dev);
95 struct comedi_subdevice *s;
98 printk(KERN_INFO "comedi%d: aio_iiro_16: ", dev->minor);
100 dev->board_name = board->name;
102 iobase = it->options[0];
104 if (!request_region(iobase, AIO_IIRO_16_SIZE, dev->board_name)) {
105 printk("I/O port conflict");
109 dev->iobase = iobase;
111 ret = comedi_alloc_subdevices(dev, 2);
115 s = dev->subdevices + 0;
116 s->type = COMEDI_SUBD_DIO;
117 s->subdev_flags = SDF_WRITABLE;
120 s->range_table = &range_digital;
121 s->insn_bits = aio_iiro_16_dio_insn_bits_write;
123 s = dev->subdevices + 1;
124 s->type = COMEDI_SUBD_DIO;
125 s->subdev_flags = SDF_READABLE;
128 s->range_table = &range_digital;
129 s->insn_bits = aio_iiro_16_dio_insn_bits_read;
131 printk("attached\n");
136 static void aio_iiro_16_detach(struct comedi_device *dev)
139 release_region(dev->iobase, AIO_IIRO_16_SIZE);
142 static struct comedi_driver aio_iiro_16_driver = {
143 .driver_name = "aio_iiro_16",
144 .module = THIS_MODULE,
145 .attach = aio_iiro_16_attach,
146 .detach = aio_iiro_16_detach,
147 .board_name = &aio_iiro_16_boards[0].name,
148 .offset = sizeof(struct aio_iiro_16_board),
149 .num_names = ARRAY_SIZE(aio_iiro_16_boards),
151 module_comedi_driver(aio_iiro_16_driver);
153 MODULE_AUTHOR("Comedi http://www.comedi.org");
154 MODULE_DESCRIPTION("Comedi low-level driver");
155 MODULE_LICENSE("GPL");