Loading...
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 | /*
comedi/drivers/amplc_pci263.c
Driver for Amplicon PCI263 relay board.
Copyright (C) 2002 MEV Ltd. <http://www.mev.co.uk/>
COMEDI - Linux Control and Measurement Device Interface
Copyright (C) 2000 David A. Schleef <ds@schleef.org>
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: amplc_pci263
Description: Amplicon PCI263
Author: Ian Abbott <abbotti@mev.co.uk>
Devices: [Amplicon] PCI263 (amplc_pci263)
Updated: Fri, 12 Apr 2013 15:19:36 +0100
Status: works
Configuration options: not applicable, uses PCI auto config
The board appears as one subdevice, with 16 digital outputs, each
connected to a reed-relay. Relay contacts are closed when output is 1.
The state of the outputs can be read.
*/
#include <linux/pci.h>
#include "../comedidev.h"
#define PCI263_DRIVER_NAME "amplc_pci263"
/* PCI263 PCI configuration register information */
#define PCI_DEVICE_ID_AMPLICON_PCI263 0x000c
static int pci263_do_insn_bits(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn, unsigned int *data)
{
/* The insn data is a mask in data[0] and the new data
* in data[1], each channel cooresponding to a bit. */
if (data[0]) {
s->state &= ~data[0];
s->state |= data[0] & data[1];
/* Write out the new digital output lines */
outb(s->state & 0xFF, dev->iobase);
outb(s->state >> 8, dev->iobase + 1);
}
data[1] = s->state;
return insn->n;
}
static int pci263_auto_attach(struct comedi_device *dev,
unsigned long context_unused)
{
struct pci_dev *pci_dev = comedi_to_pci_dev(dev);
struct comedi_subdevice *s;
int ret;
ret = comedi_pci_enable(dev);
if (ret)
return ret;
dev->iobase = pci_resource_start(pci_dev, 2);
ret = comedi_alloc_subdevices(dev, 1);
if (ret)
return ret;
s = &dev->subdevices[0];
/* digital output subdevice */
s->type = COMEDI_SUBD_DO;
s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
s->n_chan = 16;
s->maxdata = 1;
s->range_table = &range_digital;
s->insn_bits = pci263_do_insn_bits;
/* read initial relay state */
s->state = inb(dev->iobase) | (inb(dev->iobase + 1) << 8);
dev_info(dev->class_dev, "%s (pci %s) attached\n", dev->board_name,
pci_name(pci_dev));
return 0;
}
static struct comedi_driver amplc_pci263_driver = {
.driver_name = PCI263_DRIVER_NAME,
.module = THIS_MODULE,
.auto_attach = pci263_auto_attach,
.detach = comedi_pci_disable,
};
static DEFINE_PCI_DEVICE_TABLE(pci263_pci_table) = {
{ PCI_DEVICE(PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_AMPLICON_PCI263) },
{0}
};
MODULE_DEVICE_TABLE(pci, pci263_pci_table);
static int amplc_pci263_pci_probe(struct pci_dev *dev,
const struct pci_device_id *id)
{
return comedi_pci_auto_config(dev, &lc_pci263_driver,
id->driver_data);
}
static struct pci_driver amplc_pci263_pci_driver = {
.name = PCI263_DRIVER_NAME,
.id_table = pci263_pci_table,
.probe = &lc_pci263_pci_probe,
.remove = comedi_pci_auto_unconfig,
};
module_comedi_pci_driver(amplc_pci263_driver, amplc_pci263_pci_driver);
MODULE_AUTHOR("Comedi http://www.comedi.org");
MODULE_DESCRIPTION("Comedi driver for Amplicon PCI263 relay board");
MODULE_LICENSE("GPL");
|