3 * Comedi driver for Kolter-Electronic PCI Counter 1 Card
5 * COMEDI - Linux Control and Measurement Device Interface
6 * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
21 * Description: Driver for Kolter Electronic Counter Card
22 * Devices: [Kolter Electronic] PCI Counter Card (ke_counter)
23 * Author: Michael Hillmann
24 * Updated: Mon, 14 Apr 2008 15:42:42 +0100
27 * Configuration Options: not applicable, uses PCI auto config
30 #include <linux/module.h>
32 #include "../comedi_pci.h"
35 * PCI BAR 0 Register I/O map
37 #define KE_RESET_REG(x) (0x00 + ((x) * 0x20))
38 #define KE_LATCH_REG(x) (0x00 + ((x) * 0x20))
39 #define KE_LSB_REG(x) (0x04 + ((x) * 0x20))
40 #define KE_MID_REG(x) (0x08 + ((x) * 0x20))
41 #define KE_MSB_REG(x) (0x0c + ((x) * 0x20))
42 #define KE_SIGN_REG(x) (0x10 + ((x) * 0x20))
43 #define KE_OSC_SEL_REG 0xf8
44 #define KE_OSC_SEL_CLK(x) (((x) & 0x3) << 0)
45 #define KE_OSC_SEL_EXT KE_OSC_SEL_CLK(1)
46 #define KE_OSC_SEL_4MHZ KE_OSC_SEL_CLK(2)
47 #define KE_OSC_SEL_20MHZ KE_OSC_SEL_CLK(3)
48 #define KE_DO_REG 0xfc
50 static int ke_counter_insn_write(struct comedi_device *dev,
51 struct comedi_subdevice *s,
52 struct comedi_insn *insn,
55 unsigned int chan = CR_CHAN(insn->chanspec);
59 for (i = 0; i < insn->n; i++) {
63 outb((val >> 24) & 0xff, dev->iobase + KE_SIGN_REG(chan));
64 outb((val >> 16) & 0xff, dev->iobase + KE_MSB_REG(chan));
65 outb((val >> 8) & 0xff, dev->iobase + KE_MID_REG(chan));
66 outb((val >> 0) & 0xff, dev->iobase + KE_LSB_REG(chan));
72 static int ke_counter_insn_read(struct comedi_device *dev,
73 struct comedi_subdevice *s,
74 struct comedi_insn *insn,
77 unsigned int chan = CR_CHAN(insn->chanspec);
81 for (i = 0; i < insn->n; i++) {
83 inb(dev->iobase + KE_LATCH_REG(chan));
85 val = inb(dev->iobase + KE_LSB_REG(chan));
86 val |= (inb(dev->iobase + KE_MID_REG(chan)) << 8);
87 val |= (inb(dev->iobase + KE_MSB_REG(chan)) << 16);
88 val |= (inb(dev->iobase + KE_SIGN_REG(chan)) << 24);
96 static void ke_counter_reset(struct comedi_device *dev)
100 for (chan = 0; chan < 3; chan++)
101 outb(0, dev->iobase + KE_RESET_REG(chan));
104 static int ke_counter_insn_config(struct comedi_device *dev,
105 struct comedi_subdevice *s,
106 struct comedi_insn *insn,
112 case INSN_CONFIG_SET_CLOCK_SRC:
114 case KE_CLK_20MHZ: /* default */
115 src = KE_OSC_SEL_20MHZ;
117 case KE_CLK_4MHZ: /* option */
118 src = KE_OSC_SEL_4MHZ;
120 case KE_CLK_EXT: /* Pin 21 on D-sub */
121 src = KE_OSC_SEL_EXT;
126 outb(src, dev->iobase + KE_OSC_SEL_REG);
128 case INSN_CONFIG_GET_CLOCK_SRC:
129 src = inb(dev->iobase + KE_OSC_SEL_REG);
131 case KE_OSC_SEL_20MHZ:
132 data[1] = KE_CLK_20MHZ;
133 data[2] = 50; /* 50ns */
135 case KE_OSC_SEL_4MHZ:
136 data[1] = KE_CLK_4MHZ;
137 data[2] = 250; /* 250ns */
140 data[1] = KE_CLK_EXT;
141 data[2] = 0; /* Unknown */
147 case INSN_CONFIG_RESET:
148 ke_counter_reset(dev);
157 static int ke_counter_do_insn_bits(struct comedi_device *dev,
158 struct comedi_subdevice *s,
159 struct comedi_insn *insn,
162 if (comedi_dio_update_state(s, data))
163 outb(s->state, dev->iobase + KE_DO_REG);
170 static int ke_counter_auto_attach(struct comedi_device *dev,
171 unsigned long context_unused)
173 struct pci_dev *pcidev = comedi_to_pci_dev(dev);
174 struct comedi_subdevice *s;
177 ret = comedi_pci_enable(dev);
180 dev->iobase = pci_resource_start(pcidev, 0);
182 ret = comedi_alloc_subdevices(dev, 2);
186 s = &dev->subdevices[0];
187 s->type = COMEDI_SUBD_COUNTER;
188 s->subdev_flags = SDF_READABLE;
190 s->maxdata = 0x01ffffff;
191 s->range_table = &range_unknown;
192 s->insn_read = ke_counter_insn_read;
193 s->insn_write = ke_counter_insn_write;
194 s->insn_config = ke_counter_insn_config;
196 s = &dev->subdevices[1];
197 s->type = COMEDI_SUBD_DO;
198 s->subdev_flags = SDF_WRITABLE;
201 s->range_table = &range_digital;
202 s->insn_bits = ke_counter_do_insn_bits;
204 outb(KE_OSC_SEL_20MHZ, dev->iobase + KE_OSC_SEL_REG);
206 ke_counter_reset(dev);
211 static struct comedi_driver ke_counter_driver = {
212 .driver_name = "ke_counter",
213 .module = THIS_MODULE,
214 .auto_attach = ke_counter_auto_attach,
215 .detach = comedi_pci_detach,
218 static int ke_counter_pci_probe(struct pci_dev *dev,
219 const struct pci_device_id *id)
221 return comedi_pci_auto_config(dev, &ke_counter_driver,
225 static const struct pci_device_id ke_counter_pci_table[] = {
226 { PCI_DEVICE(PCI_VENDOR_ID_KOLTER, 0x0014) },
229 MODULE_DEVICE_TABLE(pci, ke_counter_pci_table);
231 static struct pci_driver ke_counter_pci_driver = {
232 .name = "ke_counter",
233 .id_table = ke_counter_pci_table,
234 .probe = ke_counter_pci_probe,
235 .remove = comedi_pci_auto_unconfig,
237 module_comedi_pci_driver(ke_counter_driver, ke_counter_pci_driver);
239 MODULE_AUTHOR("Comedi http://www.comedi.org");
240 MODULE_DESCRIPTION("Comedi driver for Kolter Electronic Counter Card");
241 MODULE_LICENSE("GPL");