contec_pci_dio.c revision 2f0b9d082e5d0056a3aca4be038483a564849196 
1/*
2    comedi/drivers/contec_pci_dio.c
3
4    COMEDI - Linux Control and Measurement Device Interface
5    Copyright (C) 2000 David A. Schleef <ds@schleef.org>
6
7    This program is free software; you can redistribute it and/or modify
8    it under the terms of the GNU General Public License as published by
9    the Free Software Foundation; either version 2 of the License, or
10    (at your option) any later version.
11
12    This program is distributed in the hope that it will be useful,
13    but WITHOUT ANY WARRANTY; without even the implied warranty of
14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15    GNU General Public License for more details.
16
17    You should have received a copy of the GNU General Public License
18    along with this program; if not, write to the Free Software
19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20
21*/
22/*
23Driver: contec_pci_dio
24Description: Contec PIO1616L digital I/O board
25Devices: [Contec] PIO1616L (contec_pci_dio)
26Author: Stefano Rivoir <s.rivoir@gts.it>
27Updated: Wed, 27 Jun 2007 13:00:06 +0100
28Status: works
29
30Configuration Options:
31  [0] - PCI bus of device (optional)
32  [1] - PCI slot of device (optional)
33  If bus/slot is not specified, the first supported
34  PCI device found will be used.
35*/
36
37#include "../comedidev.h"
38
39enum contec_model {
40	PIO1616L = 0,
41};
42
43struct contec_board {
44	const char *name;
45	int model;
46	int in_ports;
47	int out_ports;
48	int in_offs;
49	int out_offs;
50	int out_boffs;
51};
52static const struct contec_board contec_boards[] = {
53	{"PIO1616L", PIO1616L, 16, 16, 0, 2, 10},
54};
55
56#define PCI_DEVICE_ID_PIO1616L 0x8172
57
58#define thisboard ((const struct contec_board *)dev->board_ptr)
59
60struct contec_private {
61	int data;
62
63	struct pci_dev *pci_dev;
64
65};
66
67#define devpriv ((struct contec_private *)dev->private)
68
69static int contec_do_insn_bits(struct comedi_device *dev,
70			       struct comedi_subdevice *s,
71			       struct comedi_insn *insn, unsigned int *data)
72{
73
74	dev_dbg(dev->hw_dev, "contec_do_insn_bits called\n");
75	dev_dbg(dev->hw_dev, "data: %d %d\n", data[0], data[1]);
76
77	if (insn->n != 2)
78		return -EINVAL;
79
80	if (data[0]) {
81		s->state &= ~data[0];
82		s->state |= data[0] & data[1];
83		dev_dbg(dev->hw_dev, "out: %d on %lx\n", s->state,
84			dev->iobase + thisboard->out_offs);
85		outw(s->state, dev->iobase + thisboard->out_offs);
86	}
87	return 2;
88}
89
90static int contec_di_insn_bits(struct comedi_device *dev,
91			       struct comedi_subdevice *s,
92			       struct comedi_insn *insn, unsigned int *data)
93{
94
95	dev_dbg(dev->hw_dev, "contec_di_insn_bits called\n");
96	dev_dbg(dev->hw_dev, "data: %d %d\n", data[0], data[1]);
97
98	if (insn->n != 2)
99		return -EINVAL;
100
101	data[1] = inw(dev->iobase + thisboard->in_offs);
102
103	return 2;
104}
105
106static int contec_attach(struct comedi_device *dev, struct comedi_devconfig *it)
107{
108	struct pci_dev *pcidev = NULL;
109	struct comedi_subdevice *s;
110
111	printk("comedi%d: contec: ", dev->minor);
112
113	dev->board_name = thisboard->name;
114
115	if (alloc_private(dev, sizeof(struct contec_private)) < 0)
116		return -ENOMEM;
117
118	if (comedi_alloc_subdevices(dev, 2) < 0)
119		return -ENOMEM;
120
121	for_each_pci_dev(pcidev) {
122		if (pcidev->vendor == PCI_VENDOR_ID_CONTEC &&
123		    pcidev->device == PCI_DEVICE_ID_PIO1616L) {
124			if (it->options[0] || it->options[1]) {
125				/* Check bus and slot. */
126				if (it->options[0] != pcidev->bus->number ||
127				    it->options[1] != PCI_SLOT(pcidev->devfn)) {
128					continue;
129				}
130			}
131			devpriv->pci_dev = pcidev;
132			if (comedi_pci_enable(pcidev, "contec_pci_dio")) {
133				printk
134				    ("error enabling PCI device and request regions!\n");
135				return -EIO;
136			}
137			dev->iobase = pci_resource_start(pcidev, 0);
138			printk(" base addr %lx ", dev->iobase);
139
140			dev->board_ptr = contec_boards + 0;
141
142			s = dev->subdevices + 0;
143
144			s->type = COMEDI_SUBD_DI;
145			s->subdev_flags = SDF_READABLE;
146			s->n_chan = 16;
147			s->maxdata = 1;
148			s->range_table = &range_digital;
149			s->insn_bits = contec_di_insn_bits;
150
151			s = dev->subdevices + 1;
152			s->type = COMEDI_SUBD_DO;
153			s->subdev_flags = SDF_WRITABLE;
154			s->n_chan = 16;
155			s->maxdata = 1;
156			s->range_table = &range_digital;
157			s->insn_bits = contec_do_insn_bits;
158
159			printk("attached\n");
160
161			return 1;
162		}
163	}
164
165	printk("card not present!\n");
166
167	return -EIO;
168}
169
170static void contec_detach(struct comedi_device *dev)
171{
172	if (devpriv && devpriv->pci_dev) {
173		if (dev->iobase)
174			comedi_pci_disable(devpriv->pci_dev);
175		pci_dev_put(devpriv->pci_dev);
176	}
177}
178
179static struct comedi_driver contec_pci_dio_driver = {
180	.driver_name	= "contec_pci_dio",
181	.module		= THIS_MODULE,
182	.attach		= contec_attach,
183	.detach		= contec_detach,
184};
185
186static int __devinit contec_pci_dio_pci_probe(struct pci_dev *dev,
187					      const struct pci_device_id *ent)
188{
189	return comedi_pci_auto_config(dev, &contec_pci_dio_driver);
190}
191
192static void __devexit contec_pci_dio_pci_remove(struct pci_dev *dev)
193{
194	comedi_pci_auto_unconfig(dev);
195}
196
197static DEFINE_PCI_DEVICE_TABLE(contec_pci_dio_pci_table) = {
198	{ PCI_DEVICE(PCI_VENDOR_ID_CONTEC, PCI_DEVICE_ID_PIO1616L),
199		.driver_data = PIO1616L },
200	{ 0 }
201};
202MODULE_DEVICE_TABLE(pci, contec_pci_dio_pci_table);
203
204static struct pci_driver contec_pci_dio_pci_driver = {
205	.name		= "contec_pci_dio",
206	.id_table	= contec_pci_dio_pci_table,
207	.probe		= contec_pci_dio_pci_probe,
208	.remove		= __devexit_p(contec_pci_dio_pci_remove),
209};
210module_comedi_pci_driver(contec_pci_dio_driver, contec_pci_dio_pci_driver);
211
212MODULE_AUTHOR("Comedi http://www.comedi.org");
213MODULE_DESCRIPTION("Comedi low-level driver");
214MODULE_LICENSE("GPL");
215