2 comedi/drivers/amplc_pc263.c
3 Driver for Amplicon PC263 and PCI263 relay boards.
5 Copyright (C) 2002 MEV Ltd. <http://www.mev.co.uk/>
7 COMEDI - Linux Control and Measurement Device Interface
8 Copyright (C) 2000 David A. Schleef <ds@schleef.org>
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 Description: Amplicon PC263
28 Author: Ian Abbott <abbotti@mev.co.uk>
29 Devices: [Amplicon] PC263 (pc263)
30 Updated: Fri, 12 Apr 2013 15:19:36 +0100
33 Configuration options:
34 [0] - I/O port base address
36 The board appears as one subdevice, with 16 digital outputs, each
37 connected to a reed-relay. Relay contacts are closed when output is 1.
38 The state of the outputs can be read.
41 #include "../comedidev.h"
43 #define PC263_DRIVER_NAME "amplc_pc263"
46 #define PC263_IO_SIZE 2
49 * Board descriptions for Amplicon PC263.
56 static const struct pc263_board pc263_boards[] = {
62 static int pc263_do_insn_bits(struct comedi_device *dev,
63 struct comedi_subdevice *s,
64 struct comedi_insn *insn, unsigned int *data)
66 /* The insn data is a mask in data[0] and the new data
67 * in data[1], each channel cooresponding to a bit. */
70 s->state |= data[0] & data[1];
71 /* Write out the new digital output lines */
72 outb(s->state & 0xFF, dev->iobase);
73 outb(s->state >> 8, dev->iobase + 1);
81 static int pc263_attach(struct comedi_device *dev, struct comedi_devconfig *it)
83 struct comedi_subdevice *s;
86 ret = comedi_request_region(dev, it->options[0], PC263_IO_SIZE);
90 ret = comedi_alloc_subdevices(dev, 1);
94 s = &dev->subdevices[0];
95 /* digital output subdevice */
96 s->type = COMEDI_SUBD_DO;
97 s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
100 s->range_table = &range_digital;
101 s->insn_bits = pc263_do_insn_bits;
102 /* read initial relay state */
103 s->state = inb(dev->iobase) | (inb(dev->iobase + 1) << 8);
105 dev_info(dev->class_dev, "%s (base %#lx) attached\n", dev->board_name,
110 static struct comedi_driver amplc_pc263_driver = {
111 .driver_name = PC263_DRIVER_NAME,
112 .module = THIS_MODULE,
113 .attach = pc263_attach,
114 .detach = comedi_legacy_detach,
115 .board_name = &pc263_boards[0].name,
116 .offset = sizeof(struct pc263_board),
117 .num_names = ARRAY_SIZE(pc263_boards),
120 module_comedi_driver(amplc_pc263_driver);
122 MODULE_AUTHOR("Comedi http://www.comedi.org");
123 MODULE_DESCRIPTION("Comedi driver for Amplicon PC263 relay board");
124 MODULE_LICENSE("GPL");