contec_pci_dio.c revision 20fb2280815510533cbd7785b53821ca7209345b 
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
39#include "comedi_pci.h"
40
41enum contec_model {
42	PIO1616L = 0,
43};
44
45struct contec_board {
46	const char *name;
47	int model;
48	int in_ports;
49	int out_ports;
50	int in_offs;
51	int out_offs;
52	int out_boffs;
53};
54static const struct contec_board contec_boards[] = {
55	{"PIO1616L", PIO1616L, 16, 16, 0, 2, 10},
56};
57
58#define PCI_DEVICE_ID_PIO1616L 0x8172
59static DEFINE_PCI_DEVICE_TABLE(contec_pci_table) = {
60	{
61	PCI_VENDOR_ID_CONTEC, PCI_DEVICE_ID_PIO1616L, PCI_ANY_ID,
62		    PCI_ANY_ID, 0, 0, PIO1616L}, {
63	0}
64};
65
66MODULE_DEVICE_TABLE(pci, contec_pci_table);
67
68#define thisboard ((const struct contec_board *)dev->board_ptr)
69
70struct contec_private {
71	int data;
72
73	struct pci_dev *pci_dev;
74
75};
76
77#define devpriv ((struct contec_private *)dev->private)
78
79static int contec_attach(struct comedi_device *dev,
80			 struct comedi_devconfig *it);
81static int contec_detach(struct comedi_device *dev);
82static struct comedi_driver driver_contec = {
83	.driver_name = "contec_pci_dio",
84	.module = THIS_MODULE,
85	.attach = contec_attach,
86	.detach = contec_detach,
87};
88
89/* Classic digital IO */
90static int contec_di_insn_bits(struct comedi_device *dev,
91			       struct comedi_subdevice *s,
92			       struct comedi_insn *insn, unsigned int *data);
93static int contec_do_insn_bits(struct comedi_device *dev,
94			       struct comedi_subdevice *s,
95			       struct comedi_insn *insn, unsigned int *data);
96
97#if 0
98static int contec_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
99			  struct comedi_cmd *cmd);
100
101static int contec_ns_to_timer(unsigned int *ns, int round);
102#endif
103
104static int contec_attach(struct comedi_device *dev, struct comedi_devconfig *it)
105{
106	struct pci_dev *pcidev = NULL;
107	struct comedi_subdevice *s;
108
109	printk("comedi%d: contec: ", dev->minor);
110
111	dev->board_name = thisboard->name;
112
113	if (alloc_private(dev, sizeof(struct contec_private)) < 0)
114		return -ENOMEM;
115
116	if (alloc_subdevices(dev, 2) < 0)
117		return -ENOMEM;
118
119	for_each_pci_dev(pcidev) {
120		if (pcidev->vendor == PCI_VENDOR_ID_CONTEC &&
121		    pcidev->device == PCI_DEVICE_ID_PIO1616L) {
122			if (it->options[0] || it->options[1]) {
123				/* Check bus and slot. */
124				if (it->options[0] != pcidev->bus->number ||
125				    it->options[1] != PCI_SLOT(pcidev->devfn)) {
126					continue;
127				}
128			}
129			devpriv->pci_dev = pcidev;
130			if (comedi_pci_enable(pcidev, "contec_pci_dio")) {
131				printk
132				    ("error enabling PCI device and request regions!\n");
133				return -EIO;
134			}
135			dev->iobase = pci_resource_start(pcidev, 0);
136			printk(" base addr %lx ", dev->iobase);
137
138			dev->board_ptr = contec_boards + 0;
139
140			s = dev->subdevices + 0;
141
142			s->type = COMEDI_SUBD_DI;
143			s->subdev_flags = SDF_READABLE;
144			s->n_chan = 16;
145			s->maxdata = 1;
146			s->range_table = &range_digital;
147			s->insn_bits = contec_di_insn_bits;
148
149			s = dev->subdevices + 1;
150			s->type = COMEDI_SUBD_DO;
151			s->subdev_flags = SDF_WRITABLE;
152			s->n_chan = 16;
153			s->maxdata = 1;
154			s->range_table = &range_digital;
155			s->insn_bits = contec_do_insn_bits;
156
157			printk("attached\n");
158
159			return 1;
160		}
161	}
162
163	printk("card not present!\n");
164
165	return -EIO;
166}
167
168static int contec_detach(struct comedi_device *dev)
169{
170	printk("comedi%d: contec: remove\n", dev->minor);
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	return 0;
179}
180
181#if 0
182static int contec_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
183			  struct comedi_cmd *cmd)
184{
185	printk("contec_cmdtest called\n");
186	return 0;
187}
188
189static int contec_ns_to_timer(unsigned int *ns, int round)
190{
191	return *ns;
192}
193#endif
194
195static int contec_do_insn_bits(struct comedi_device *dev,
196			       struct comedi_subdevice *s,
197			       struct comedi_insn *insn, unsigned int *data)
198{
199
200	printk("contec_do_insn_bits called\n");
201	printk(" data: %d %d\n", data[0], data[1]);
202
203	if (insn->n != 2)
204		return -EINVAL;
205
206	if (data[0]) {
207		s->state &= ~data[0];
208		s->state |= data[0] & data[1];
209		printk("  out: %d on %lx\n", s->state,
210		       dev->iobase + thisboard->out_offs);
211		outw(s->state, dev->iobase + thisboard->out_offs);
212	}
213	return 2;
214}
215
216static int contec_di_insn_bits(struct comedi_device *dev,
217			       struct comedi_subdevice *s,
218			       struct comedi_insn *insn, unsigned int *data)
219{
220
221	printk("contec_di_insn_bits called\n");
222	printk(" data: %d %d\n", data[0], data[1]);
223
224	if (insn->n != 2)
225		return -EINVAL;
226
227	data[1] = inw(dev->iobase + thisboard->in_offs);
228
229	return 2;
230}
231
232static int __devinit driver_contec_pci_probe(struct pci_dev *dev,
233					     const struct pci_device_id *ent)
234{
235	return comedi_pci_auto_config(dev, driver_contec.driver_name);
236}
237
238static void __devexit driver_contec_pci_remove(struct pci_dev *dev)
239{
240	comedi_pci_auto_unconfig(dev);
241}
242
243static struct pci_driver driver_contec_pci_driver = {
244	.id_table = contec_pci_table,
245	.probe = &driver_contec_pci_probe,
246	.remove = __devexit_p(&driver_contec_pci_remove)
247};
248
249static int __init driver_contec_init_module(void)
250{
251	int retval;
252
253	retval = comedi_driver_register(&driver_contec);
254	if (retval < 0)
255		return retval;
256
257	driver_contec_pci_driver.name = (char *)driver_contec.driver_name;
258	return pci_register_driver(&driver_contec_pci_driver);
259}
260
261static void __exit driver_contec_cleanup_module(void)
262{
263	pci_unregister_driver(&driver_contec_pci_driver);
264	comedi_driver_unregister(&driver_contec);
265}
266
267module_init(driver_contec_init_module);
268module_exit(driver_contec_cleanup_module);
269
270MODULE_AUTHOR("Comedi http://www.comedi.org");
271MODULE_DESCRIPTION("Comedi low-level driver");
272MODULE_LICENSE("GPL");
273