contec_pci_dio.c revision 71b5f4f11971dea972832ad63a994c7e5b45db6b 
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
41typedef enum contec_model {
42	PIO1616L = 0,
43} contec_model;
44
45typedef struct 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} contec_board;
54static const 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	{PCI_VENDOR_ID_CONTEC, PCI_DEVICE_ID_PIO1616L, PCI_ANY_ID, PCI_ANY_ID,
61		0, 0, PIO1616L},
62	{0}
63};
64
65MODULE_DEVICE_TABLE(pci, contec_pci_table);
66
67#define thisboard ((const contec_board *)dev->board_ptr)
68
69typedef struct {
70	int data;
71
72	struct pci_dev *pci_dev;
73
74} contec_private;
75
76#define devpriv ((contec_private *)dev->private)
77
78static int contec_attach(struct comedi_device * dev, comedi_devconfig * it);
79static int contec_detach(struct comedi_device * dev);
80static comedi_driver driver_contec = {
81      driver_name:"contec_pci_dio",
82      module:THIS_MODULE,
83      attach:contec_attach,
84      detach:contec_detach,
85};
86
87/* Classic digital IO */
88static int contec_di_insn_bits(struct comedi_device * dev, comedi_subdevice * s,
89	comedi_insn * insn, unsigned int * data);
90static int contec_do_insn_bits(struct comedi_device * dev, comedi_subdevice * s,
91	comedi_insn * insn, unsigned int * data);
92
93#if 0
94static int contec_cmdtest(struct comedi_device * dev, comedi_subdevice * s,
95	comedi_cmd * cmd);
96
97static int contec_ns_to_timer(unsigned int *ns, int round);
98#endif
99
100static int contec_attach(struct comedi_device * dev, comedi_devconfig * it)
101{
102	struct pci_dev *pcidev;
103	comedi_subdevice *s;
104
105	printk("comedi%d: contec: ", dev->minor);
106
107	dev->board_name = thisboard->name;
108
109	if (alloc_private(dev, sizeof(contec_private)) < 0)
110		return -ENOMEM;
111
112	if (alloc_subdevices(dev, 2) < 0)
113		return -ENOMEM;
114
115	for (pcidev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, NULL);
116		pcidev != NULL;
117		pcidev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pcidev)) {
118
119		if (pcidev->vendor == PCI_VENDOR_ID_CONTEC &&
120			pcidev->device == PCI_DEVICE_ID_PIO1616L) {
121			if (it->options[0] || it->options[1]) {
122				/* Check bus and slot. */
123				if (it->options[0] != pcidev->bus->number ||
124					it->options[1] !=
125					PCI_SLOT(pcidev->devfn)) {
126					continue;
127				}
128			}
129			devpriv->pci_dev = pcidev;
130			if (comedi_pci_enable(pcidev, "contec_pci_dio")) {
131				printk("error enabling PCI device and request regions!\n");
132				return -EIO;
133			}
134			dev->iobase = pci_resource_start(pcidev, 0);
135			printk(" base addr %lx ", dev->iobase);
136
137			dev->board_ptr = contec_boards + 0;
138
139			s = dev->subdevices + 0;
140
141			s->type = COMEDI_SUBD_DI;
142			s->subdev_flags = SDF_READABLE;
143			s->n_chan = 16;
144			s->maxdata = 1;
145			s->range_table = &range_digital;
146			s->insn_bits = contec_di_insn_bits;
147
148			s = dev->subdevices + 1;
149			s->type = COMEDI_SUBD_DO;
150			s->subdev_flags = SDF_WRITABLE;
151			s->n_chan = 16;
152			s->maxdata = 1;
153			s->range_table = &range_digital;
154			s->insn_bits = contec_do_insn_bits;
155
156			printk("attached\n");
157
158			return 1;
159		}
160	}
161
162	printk("card not present!\n");
163
164	return -EIO;
165}
166
167static int contec_detach(struct comedi_device * dev)
168{
169	printk("comedi%d: contec: remove\n", dev->minor);
170
171	if (devpriv && devpriv->pci_dev) {
172		if (dev->iobase) {
173			comedi_pci_disable(devpriv->pci_dev);
174		}
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, comedi_subdevice * s,
183	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, comedi_subdevice * s,
196	comedi_insn * insn, unsigned int * data)
197{
198
199	printk("contec_do_insn_bits called\n");
200	printk(" data: %d %d\n", data[0], data[1]);
201
202	if (insn->n != 2)
203		return -EINVAL;
204
205	if (data[0]) {
206		s->state &= ~data[0];
207		s->state |= data[0] & data[1];
208		rt_printk("  out: %d on %lx\n", s->state,
209			dev->iobase + thisboard->out_offs);
210		outw(s->state, dev->iobase + thisboard->out_offs);
211	}
212	return 2;
213}
214
215static int contec_di_insn_bits(struct comedi_device * dev, comedi_subdevice * s,
216	comedi_insn * insn, unsigned int * data)
217{
218
219	rt_printk("contec_di_insn_bits called\n");
220	rt_printk(" data: %d %d\n", data[0], data[1]);
221
222	if (insn->n != 2)
223		return -EINVAL;
224
225	data[1] = inw(dev->iobase + thisboard->in_offs);
226
227	return 2;
228}
229
230COMEDI_PCI_INITCLEANUP(driver_contec, contec_pci_table);
231