2 * comedi/drivers/adl_pci8164.c
4 * Hardware comedi driver for PCI-8164 Adlink card
5 * Copyright (C) 2004 Michel Lachine <mike@mikelachaine.ca>
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.
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.
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.
24 * Description: Driver for the Adlink PCI-8164 4 Axes Motion Control board
25 * Devices: (ADLink) PCI-8164 [adl_pci8164]
26 * Author: Michel Lachaine <mike@mikelachaine.ca>
27 * Status: experimental
28 * Updated: Mon, 14 Apr 2008 15:10:32 +0100
30 * Configuration Options: not applicable, uses PCI auto config
33 #include <linux/kernel.h>
34 #include <linux/pci.h>
36 #include "../comedidev.h"
38 #define PCI8164_AXIS(x) ((x) * 0x08)
39 #define PCI8164_CMD_MSTS_REG 0x00
40 #define PCI8164_OTP_SSTS_REG 0x02
41 #define PCI8164_BUF0_REG 0x04
42 #define PCI8164_BUF1_REG 0x06
44 static int adl_pci8164_insn_read(struct comedi_device *dev,
45 struct comedi_subdevice *s,
46 struct comedi_insn *insn,
49 unsigned long offset = (unsigned long)s->private;
50 unsigned int chan = CR_CHAN(insn->chanspec);
53 for (i = 0; i < insn->n; i++)
54 data[i] = inw(dev->iobase + PCI8164_AXIS(chan) + offset);
59 static int adl_pci8164_insn_write(struct comedi_device *dev,
60 struct comedi_subdevice *s,
61 struct comedi_insn *insn,
64 unsigned long offset = (unsigned long)s->private;
65 unsigned int chan = CR_CHAN(insn->chanspec);
68 for (i = 0; i < insn->n; i++)
69 outw(data[i], dev->iobase + PCI8164_AXIS(chan) + offset);
74 static int adl_pci8164_auto_attach(struct comedi_device *dev,
75 unsigned long context_unused)
77 struct pci_dev *pcidev = comedi_to_pci_dev(dev);
78 struct comedi_subdevice *s;
81 ret = comedi_pci_enable(dev);
84 dev->iobase = pci_resource_start(pcidev, 2);
86 ret = comedi_alloc_subdevices(dev, 4);
90 /* read MSTS register / write CMD register for each axis (channel) */
91 s = &dev->subdevices[0];
92 s->type = COMEDI_SUBD_PROC;
93 s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
97 s->insn_read = adl_pci8164_insn_read;
98 s->insn_write = adl_pci8164_insn_write;
99 s->private = (void *)PCI8164_CMD_MSTS_REG;
101 /* read SSTS register / write OTP register for each axis (channel) */
102 s = &dev->subdevices[1];
103 s->type = COMEDI_SUBD_PROC;
104 s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
108 s->insn_read = adl_pci8164_insn_read;
109 s->insn_write = adl_pci8164_insn_write;
110 s->private = (void *)PCI8164_OTP_SSTS_REG;
112 /* read/write BUF0 register for each axis (channel) */
113 s = &dev->subdevices[2];
114 s->type = COMEDI_SUBD_PROC;
115 s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
119 s->insn_read = adl_pci8164_insn_read;
120 s->insn_write = adl_pci8164_insn_write;
121 s->private = (void *)PCI8164_BUF0_REG;
123 /* read/write BUF1 register for each axis (channel) */
124 s = &dev->subdevices[3];
125 s->type = COMEDI_SUBD_PROC;
126 s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
130 s->insn_read = adl_pci8164_insn_read;
131 s->insn_write = adl_pci8164_insn_write;
132 s->private = (void *)PCI8164_BUF1_REG;
137 static struct comedi_driver adl_pci8164_driver = {
138 .driver_name = "adl_pci8164",
139 .module = THIS_MODULE,
140 .auto_attach = adl_pci8164_auto_attach,
141 .detach = comedi_pci_disable,
144 static int adl_pci8164_pci_probe(struct pci_dev *dev,
145 const struct pci_device_id *id)
147 return comedi_pci_auto_config(dev, &adl_pci8164_driver,
151 static DEFINE_PCI_DEVICE_TABLE(adl_pci8164_pci_table) = {
152 { PCI_DEVICE(PCI_VENDOR_ID_ADLINK, 0x8164) },
155 MODULE_DEVICE_TABLE(pci, adl_pci8164_pci_table);
157 static struct pci_driver adl_pci8164_pci_driver = {
158 .name = "adl_pci8164",
159 .id_table = adl_pci8164_pci_table,
160 .probe = adl_pci8164_pci_probe,
161 .remove = comedi_pci_auto_unconfig,
163 module_comedi_pci_driver(adl_pci8164_driver, adl_pci8164_pci_driver);
165 MODULE_AUTHOR("Comedi http://www.comedi.org");
166 MODULE_DESCRIPTION("Comedi low-level driver");
167 MODULE_LICENSE("GPL");