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
|
// SPDX-License-Identifier: GPL-2.0+
/*
* adl_pci6208.c
* Comedi driver for ADLink 6208 series cards
*
* COMEDI - Linux Control and Measurement Device Interface
* Copyright (C) 2000 David A. Schleef <ds@schleef.org>
*/
/*
* Driver: adl_pci6208
* Description: ADLink PCI-6208/6216 Series Multi-channel Analog Output Cards
* Devices: [ADLink] PCI-6208 (adl_pci6208), PCI-6216
* Author: nsyeow <nsyeow@pd.jaring.my>
* Updated: Wed, 11 Feb 2015 11:37:18 +0000
* Status: untested
*
* Configuration Options: not applicable, uses PCI auto config
*
* All supported devices share the same PCI device ID and are treated as a
* PCI-6216 with 16 analog output channels. On a PCI-6208, the upper 8
* channels exist in registers, but don't go to DAC chips.
*/
#include <linux/module.h>
#include <linux/delay.h>
#include "../comedi_pci.h"
/*
* PCI-6208/6216-GL register map
*/
#define PCI6208_AO_CONTROL(x) (0x00 + (2 * (x)))
#define PCI6208_AO_STATUS 0x00
#define PCI6208_AO_STATUS_DATA_SEND BIT(0)
#define PCI6208_DIO 0x40
#define PCI6208_DIO_DO_MASK (0x0f)
#define PCI6208_DIO_DO_SHIFT (0)
#define PCI6208_DIO_DI_MASK (0xf0)
#define PCI6208_DIO_DI_SHIFT (4)
static int pci6208_ao_eoc(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned long context)
{
unsigned int status;
status = inw(dev->iobase + PCI6208_AO_STATUS);
if ((status & PCI6208_AO_STATUS_DATA_SEND) == 0)
return 0;
return -EBUSY;
}
static int pci6208_ao_insn_write(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned int *data)
{
unsigned int chan = CR_CHAN(insn->chanspec);
int ret;
int i;
for (i = 0; i < insn->n; i++) {
unsigned int val = data[i];
/* D/A transfer rate is 2.2us */
ret = comedi_timeout(dev, s, insn, pci6208_ao_eoc, 0);
if (ret)
return ret;
/* the hardware expects two's complement values */
outw(comedi_offset_munge(s, val),
dev->iobase + PCI6208_AO_CONTROL(chan));
s->readback[chan] = val;
}
return insn->n;
}
static int pci6208_di_insn_bits(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned int *data)
{
unsigned int val;
val = inw(dev->iobase + PCI6208_DIO);
val = (val & PCI6208_DIO_DI_MASK) >> PCI6208_DIO_DI_SHIFT;
data[1] = val;
return insn->n;
}
static int pci6208_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))
outw(s->state, dev->iobase + PCI6208_DIO);
data[1] = s->state;
return insn->n;
}
static int pci6208_auto_attach(struct comedi_device *dev,
unsigned long context_unused)
{
struct pci_dev *pcidev = comedi_to_pci_dev(dev);
struct comedi_subdevice *s;
unsigned int val;
int ret;
ret = comedi_pci_enable(dev);
if (ret)
return ret;
dev->iobase = pci_resource_start(pcidev, 2);
ret = comedi_alloc_subdevices(dev, 3);
if (ret)
return ret;
s = &dev->subdevices[0];
/* analog output subdevice */
s->type = COMEDI_SUBD_AO;
s->subdev_flags = SDF_WRITABLE;
s->n_chan = 16; /* Only 8 usable on PCI-6208 */
s->maxdata = 0xffff;
s->range_table = &range_bipolar10;
s->insn_write = pci6208_ao_insn_write;
ret = comedi_alloc_subdev_readback(s);
if (ret)
return ret;
s = &dev->subdevices[1];
/* digital input subdevice */
s->type = COMEDI_SUBD_DI;
s->subdev_flags = SDF_READABLE;
s->n_chan = 4;
s->maxdata = 1;
s->range_table = &range_digital;
s->insn_bits = pci6208_di_insn_bits;
s = &dev->subdevices[2];
/* digital output subdevice */
s->type = COMEDI_SUBD_DO;
s->subdev_flags = SDF_WRITABLE;
s->n_chan = 4;
s->maxdata = 1;
s->range_table = &range_digital;
s->insn_bits = pci6208_do_insn_bits;
/*
* Get the read back signals from the digital outputs
* and save it as the initial state for the subdevice.
*/
val = inw(dev->iobase + PCI6208_DIO);
val = (val & PCI6208_DIO_DO_MASK) >> PCI6208_DIO_DO_SHIFT;
s->state = val;
return 0;
}
static struct comedi_driver adl_pci6208_driver = {
.driver_name = "adl_pci6208",
.module = THIS_MODULE,
.auto_attach = pci6208_auto_attach,
.detach = comedi_pci_detach,
};
static int adl_pci6208_pci_probe(struct pci_dev *dev,
const struct pci_device_id *id)
{
return comedi_pci_auto_config(dev, &adl_pci6208_driver,
id->driver_data);
}
static const struct pci_device_id adl_pci6208_pci_table[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, 0x6208) },
{ PCI_DEVICE_SUB(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
0x9999, 0x6208) },
{ 0 }
};
MODULE_DEVICE_TABLE(pci, adl_pci6208_pci_table);
static struct pci_driver adl_pci6208_pci_driver = {
.name = "adl_pci6208",
.id_table = adl_pci6208_pci_table,
.probe = adl_pci6208_pci_probe,
.remove = comedi_pci_auto_unconfig,
};
module_comedi_pci_driver(adl_pci6208_driver, adl_pci6208_pci_driver);
MODULE_AUTHOR("Comedi https://www.comedi.org");
MODULE_DESCRIPTION("Comedi driver for ADLink 6208 series cards");
MODULE_LICENSE("GPL");
|
