1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
|
/*
* ke_counter.c
* Comedi driver for Kolter-Electronic PCI Counter 1 Card
*
* COMEDI - Linux Control and Measurement Device Interface
* Copyright (C) 2000 David A. Schleef <ds@schleef.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
/*
* Driver: ke_counter
* Description: Driver for Kolter Electronic Counter Card
* Devices: (Kolter Electronic) PCI Counter Card [ke_counter]
* Author: Michael Hillmann
* Updated: Mon, 14 Apr 2008 15:42:42 +0100
* Status: tested
*
* Configuration Options: not applicable, uses PCI auto config
*/
#include <linux/module.h>
#include <linux/pci.h>
#include "../comedidev.h"
/*
* PCI BAR 0 Register I/O map
*/
#define KE_RESET_REG(x) (0x00 + ((x) * 0x20))
#define KE_LATCH_REG(x) (0x00 + ((x) * 0x20))
#define KE_LSB_REG(x) (0x04 + ((x) * 0x20))
#define KE_MID_REG(x) (0x08 + ((x) * 0x20))
#define KE_MSB_REG(x) (0x0c + ((x) * 0x20))
#define KE_SIGN_REG(x) (0x10 + ((x) * 0x20))
#define KE_OSC_SEL_REG 0xf8
#define KE_OSC_SEL_EXT (1 << 0)
#define KE_OSC_SEL_4MHZ (2 << 0)
#define KE_OSC_SEL_20MHZ (3 << 0)
#define KE_DO_REG 0xfc
static int ke_counter_insn_write(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned int *data)
{
unsigned int chan = CR_CHAN(insn->chanspec);
unsigned int val;
int i;
for (i = 0; i < insn->n; i++) {
val = data[0];
/* Order matters */
outb((val >> 24) & 0xff, dev->iobase + KE_SIGN_REG(chan));
outb((val >> 16) & 0xff, dev->iobase + KE_MSB_REG(chan));
outb((val >> 8) & 0xff, dev->iobase + KE_MID_REG(chan));
outb((val >> 0) & 0xff, dev->iobase + KE_LSB_REG(chan));
}
return insn->n;
}
static int ke_counter_insn_read(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned int *data)
{
unsigned int chan = CR_CHAN(insn->chanspec);
unsigned int val;
int i;
for (i = 0; i < insn->n; i++) {
/* Order matters */
inb(dev->iobase + KE_LATCH_REG(chan));
val = inb(dev->iobase + KE_LSB_REG(chan));
val |= (inb(dev->iobase + KE_MID_REG(chan)) << 8);
val |= (inb(dev->iobase + KE_MSB_REG(chan)) << 16);
val |= (inb(dev->iobase + KE_SIGN_REG(chan)) << 24);
data[i] = val;
}
return insn->n;
}
static void ke_counter_reset(struct comedi_device *dev)
{
unsigned int chan;
for (chan = 0; chan < 3; chan++)
outb(0, dev->iobase + KE_RESET_REG(chan));
}
static int ke_counter_insn_config(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned int *data)
{
unsigned char src;
switch (data[0]) {
case INSN_CONFIG_SET_CLOCK_SRC:
switch (data[1]) {
case KE_CLK_20MHZ: /* default */
src = KE_OSC_SEL_20MHZ;
break;
case KE_CLK_4MHZ: /* option */
src = KE_OSC_SEL_4MHZ;
break;
case KE_CLK_EXT: /* Pin 21 on D-sub */
src = KE_OSC_SEL_EXT;
break;
default:
return -EINVAL;
}
outb(src, dev->iobase + KE_OSC_SEL_REG);
break;
case INSN_CONFIG_GET_CLOCK_SRC:
src = inb(dev->iobase + KE_OSC_SEL_REG);
switch (src) {
case KE_OSC_SEL_20MHZ:
data[1] = KE_CLK_20MHZ;
data[2] = 50; /* 50ns */
break;
case KE_OSC_SEL_4MHZ:
data[1] = KE_CLK_4MHZ;
data[2] = 250; /* 250ns */
break;
case KE_OSC_SEL_EXT:
data[1] = KE_CLK_EXT;
data[2] = 0; /* Unknown */
break;
default:
return -EINVAL;
}
break;
case INSN_CONFIG_RESET:
ke_counter_reset(dev);
break;
default:
return -EINVAL;
}
return insn->n;
}
static int ke_counter_do_insn_bits(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned int *data)
{
if (comedi_dio_update_state(s, data))
outb(s->state, dev->iobase + KE_DO_REG);
data[1] = s->state;
return insn->n;
}
static int ke_counter_auto_attach(struct comedi_device *dev,
unsigned long context_unused)
{
struct pci_dev *pcidev = comedi_to_pci_dev(dev);
struct comedi_subdevice *s;
int ret;
ret = comedi_pci_enable(dev);
if (ret)
return ret;
dev->iobase = pci_resource_start(pcidev, 0);
ret = comedi_alloc_subdevices(dev, 2);
if (ret)
return ret;
s = &dev->subdevices[0];
s->type = COMEDI_SUBD_COUNTER;
s->subdev_flags = SDF_READABLE;
s->n_chan = 3;
s->maxdata = 0x01ffffff;
s->range_table = &range_unknown;
s->insn_read = ke_counter_insn_read;
s->insn_write = ke_counter_insn_write;
s->insn_config = ke_counter_insn_config;
s = &dev->subdevices[1];
s->type = COMEDI_SUBD_DO;
s->subdev_flags = SDF_WRITABLE;
s->n_chan = 3;
s->maxdata = 1;
s->range_table = &range_digital;
s->insn_bits = ke_counter_do_insn_bits;
outb(KE_OSC_SEL_20MHZ, dev->iobase + KE_OSC_SEL_REG);
ke_counter_reset(dev);
return 0;
}
static struct comedi_driver ke_counter_driver = {
.driver_name = "ke_counter",
.module = THIS_MODULE,
.auto_attach = ke_counter_auto_attach,
.detach = comedi_pci_detach,
};
static int ke_counter_pci_probe(struct pci_dev *dev,
const struct pci_device_id *id)
{
return comedi_pci_auto_config(dev, &ke_counter_driver,
id->driver_data);
}
static const struct pci_device_id ke_counter_pci_table[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_KOLTER, 0x0014) },
{ 0 }
};
MODULE_DEVICE_TABLE(pci, ke_counter_pci_table);
static struct pci_driver ke_counter_pci_driver = {
.name = "ke_counter",
.id_table = ke_counter_pci_table,
.probe = ke_counter_pci_probe,
.remove = comedi_pci_auto_unconfig,
};
module_comedi_pci_driver(ke_counter_driver, ke_counter_pci_driver);
MODULE_AUTHOR("Comedi http://www.comedi.org");
MODULE_DESCRIPTION("Comedi driver for Kolter Electronic Counter Card");
MODULE_LICENSE("GPL");
|
