contec_pci_dio.c revision a2714e3e42e746d6c8525c35fdcc58fb60c2830d 
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->class_dev, "contec_do_insn_bits called\n");
75	dev_dbg(dev->class_dev, "data: %d %d\n", data[0], data[1]);
76
77	if (data[0]) {
78		s->state &= ~data[0];
79		s->state |= data[0] & data[1];
80		dev_dbg(dev->class_dev, "out: %d on %lx\n", s->state,
81			dev->iobase + thisboard->out_offs);
82		outw(s->state, dev->iobase + thisboard->out_offs);
83	}
84	return insn->n;
85}
86
87static int contec_di_insn_bits(struct comedi_device *dev,
88			       struct comedi_subdevice *s,
89			       struct comedi_insn *insn, unsigned int *data)
90{
91
92	dev_dbg(dev->class_dev, "contec_di_insn_bits called\n");
93	dev_dbg(dev->class_dev, "data: %d %d\n", data[0], data[1]);
94
95	data[1] = inw(dev->iobase + thisboard->in_offs);
96
97	return insn->n;
98}
99
100static int contec_attach(struct comedi_device *dev, struct comedi_devconfig *it)
101{
102	struct pci_dev *pcidev = NULL;
103	struct comedi_subdevice *s;
104	int ret;
105
106	printk("comedi%d: contec: ", dev->minor);
107
108	dev->board_name = thisboard->name;
109
110	if (alloc_private(dev, sizeof(struct contec_private)) < 0)
111		return -ENOMEM;
112
113	ret = comedi_alloc_subdevices(dev, 2);
114	if (ret)
115		return ret;
116
117	for_each_pci_dev(pcidev) {
118		if (pcidev->vendor == PCI_VENDOR_ID_CONTEC &&
119		    pcidev->device == PCI_DEVICE_ID_PIO1616L) {
120			if (it->options[0] || it->options[1]) {
121				/* Check bus and slot. */
122				if (it->options[0] != pcidev->bus->number ||
123				    it->options[1] != PCI_SLOT(pcidev->devfn)) {
124					continue;
125				}
126			}
127			devpriv->pci_dev = pcidev;
128			if (comedi_pci_enable(pcidev, "contec_pci_dio")) {
129				printk
130				    ("error enabling PCI device and request regions!\n");
131				return -EIO;
132			}
133			dev->iobase = pci_resource_start(pcidev, 0);
134			printk(" base addr %lx ", dev->iobase);
135
136			dev->board_ptr = contec_boards + 0;
137
138			s = dev->subdevices + 0;
139
140			s->type = COMEDI_SUBD_DI;
141			s->subdev_flags = SDF_READABLE;
142			s->n_chan = 16;
143			s->maxdata = 1;
144			s->range_table = &range_digital;
145			s->insn_bits = contec_di_insn_bits;
146
147			s = dev->subdevices + 1;
148			s->type = COMEDI_SUBD_DO;
149			s->subdev_flags = SDF_WRITABLE;
150			s->n_chan = 16;
151			s->maxdata = 1;
152			s->range_table = &range_digital;
153			s->insn_bits = contec_do_insn_bits;
154
155			printk("attached\n");
156
157			return 1;
158		}
159	}
160
161	printk("card not present!\n");
162
163	return -EIO;
164}
165
166static void contec_detach(struct comedi_device *dev)
167{
168	if (devpriv && devpriv->pci_dev) {
169		if (dev->iobase)
170			comedi_pci_disable(devpriv->pci_dev);
171		pci_dev_put(devpriv->pci_dev);
172	}
173}
174
175static struct comedi_driver contec_pci_dio_driver = {
176	.driver_name	= "contec_pci_dio",
177	.module		= THIS_MODULE,
178	.attach		= contec_attach,
179	.detach		= contec_detach,
180};
181
182static int __devinit contec_pci_dio_pci_probe(struct pci_dev *dev,
183					      const struct pci_device_id *ent)
184{
185	return comedi_pci_auto_config(dev, &contec_pci_dio_driver);
186}
187
188static void __devexit contec_pci_dio_pci_remove(struct pci_dev *dev)
189{
190	comedi_pci_auto_unconfig(dev);
191}
192
193static DEFINE_PCI_DEVICE_TABLE(contec_pci_dio_pci_table) = {
194	{ PCI_DEVICE(PCI_VENDOR_ID_CONTEC, PCI_DEVICE_ID_PIO1616L),
195		.driver_data = PIO1616L },
196	{ 0 }
197};
198MODULE_DEVICE_TABLE(pci, contec_pci_dio_pci_table);
199
200static struct pci_driver contec_pci_dio_pci_driver = {
201	.name		= "contec_pci_dio",
202	.id_table	= contec_pci_dio_pci_table,
203	.probe		= contec_pci_dio_pci_probe,
204	.remove		= __devexit_p(contec_pci_dio_pci_remove),
205};
206module_comedi_pci_driver(contec_pci_dio_driver, contec_pci_dio_pci_driver);
207
208MODULE_AUTHOR("Comedi http://www.comedi.org");
209MODULE_DESCRIPTION("Comedi low-level driver");
210MODULE_LICENSE("GPL");
211