adl_pci6208.c 7.45 KB
Newer Older
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
/*
    comedi/drivers/adl_pci6208.c

    Hardware driver for ADLink 6208 series cards:
	card	     | voltage output    | current output
	-------------+-------------------+---------------
	PCI-6208V    |  8 channels       | -
	PCI-6216V    | 16 channels       | -
	PCI-6208A    |  8 channels       | 8 channels

    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.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
Driver: adl_pci6208
Description: ADLink PCI-6208A
Devices: [ADLink] PCI-6208A (adl_pci6208)
Author: nsyeow <nsyeow@pd.jaring.my>
Updated: Fri, 30 Jan 2004 14:44:27 +0800
Status: untested

Configuration Options:
  none

References:
	- ni_660x.c
	- adl_pci9111.c		copied the entire pci setup section
	- adl_pci9118.c
*/
44

45
46
#include "../comedidev.h"

47
48
49
50
51
52
53
54
55
56
57
58
/*
 * 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	(1 << 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)

59
struct pci6208_board {
60
	const char *name;
61
	unsigned short dev_id;
62
	int ao_chans;
63
64
65
};

static const struct pci6208_board pci6208_boards[] = {
66
	{
67
68
69
70
		.name		= "pci6208a",
		.dev_id		= 0x6208,
		.ao_chans	= 8,
	},
71
72
};

73
struct pci6208_private {
74
	int data;
75
76
	struct pci_dev *pci_dev;
	unsigned int ao_readback[2];
77
};
78

79
80
81
static int pci6208_ao_winsn(struct comedi_device *dev,
			    struct comedi_subdevice *s,
			    struct comedi_insn *insn, unsigned int *data)
82
{
83
	struct pci6208_private *devpriv = dev->private;
84
85
86
87
	int i = 0, Data_Read;
	unsigned short chan = CR_CHAN(insn->chanspec);
	unsigned long invert = 1 << (16 - 1);
	unsigned long out_value;
88

89
90
91
92
93
94
95
96
97
98
99
100
	for (i = 0; i < insn->n; i++) {
		out_value = data[i] ^ invert;
		do {
			Data_Read = (inw(dev->iobase) & 1);
		} while (Data_Read);
		outw(out_value, dev->iobase + (0x02 * chan));
		devpriv->ao_readback[chan] = out_value;
	}

	return i;
}

101
102
103
static int pci6208_ao_rinsn(struct comedi_device *dev,
			    struct comedi_subdevice *s,
			    struct comedi_insn *insn, unsigned int *data)
104
{
105
	struct pci6208_private *devpriv = dev->private;
106
107
108
109
110
111
112
113
114
	int i;
	int chan = CR_CHAN(insn->chanspec);

	for (i = 0; i < insn->n; i++)
		data[i] = devpriv->ao_readback[chan];

	return i;
}

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
static int pci6208_dio_insn_bits(struct comedi_device *dev,
				 struct comedi_subdevice *s,
				 struct comedi_insn *insn,
				 unsigned int *data)
{
	unsigned int mask = data[0] & PCI6208_DIO_DO_MASK;
	unsigned int bits = data[1];

	if (mask) {
		s->state &= ~mask;
		s->state |= bits & mask;

		outw(s->state, dev->iobase + PCI6208_DIO);
	}

	s->state = inw(dev->iobase + PCI6208_DIO);
	data[1] = s->state;

	return insn->n;
}

static int pci6208_dio_insn_config(struct comedi_device *dev,
				   struct comedi_subdevice *s,
				   struct comedi_insn *insn,
				   unsigned int *data)
{
	int chan = CR_CHAN(insn->chanspec);
	unsigned int mask = 1 << chan;

	switch (data[0]) {
	case INSN_CONFIG_DIO_QUERY:
		data[1] = (s->io_bits & mask) ? COMEDI_OUTPUT : COMEDI_INPUT;
		break;
	default:
		return -EINVAL;
	}

	return insn->n;
}
154

155
156
static struct pci_dev *pci6208_find_device(struct comedi_device *dev,
					   struct comedi_devconfig *it)
157
{
158
	const struct pci6208_board *thisboard;
159
	struct pci_dev *pci_dev = NULL;
160
161
	int bus = it->options[0];
	int slot = it->options[1];
162
163
	int i;

164
	for_each_pci_dev(pci_dev) {
165
166
167
168
169
170
171
172
173
174
175
176
		if (pci_dev->vendor != PCI_VENDOR_ID_ADLINK)
			continue;
		for (i = 0; i < ARRAY_SIZE(pci6208_boards); i++) {
			thisboard = &pci6208_boards[i];
			if (thisboard->dev_id != pci_dev->device)
				continue;
			/* was a particular bus/slot requested? */
			if (bus || slot) {
				/* are we on the wrong bus/slot? */
				if (pci_dev->bus->number != bus ||
				    PCI_SLOT(pci_dev->devfn) != slot)
					continue;
177
			}
178
179
180
181
182
183
184
185
			dev_dbg(dev->class_dev,
				"Found %s on bus %d, slot, %d, irq=%d\n",
				thisboard->name,
				pci_dev->bus->number,
				PCI_SLOT(pci_dev->devfn),
				pci_dev->irq);
			dev->board_ptr = thisboard;
			return pci_dev;
186
187
		}
	}
188
189
190
191
	dev_err(dev->class_dev,
		"No supported board found! (req. bus %d, slot %d)\n",
		bus, slot);
	return NULL;
192
193
}

194
195
196
static int pci6208_attach(struct comedi_device *dev,
			  struct comedi_devconfig *it)
{
197
198
	const struct pci6208_board *thisboard;
	struct pci6208_private *devpriv;
199
	struct comedi_subdevice *s;
200
	int ret;
201

202
203
204
	ret = alloc_private(dev, sizeof(*devpriv));
	if (ret < 0)
		return ret;
205
	devpriv = dev->private;
206

207
208
209
	devpriv->pci_dev = pci6208_find_device(dev, it);
	if (!devpriv->pci_dev)
		return -EIO;
210
	thisboard = comedi_board(dev);
211

212
213
	ret = comedi_pci_enable(devpriv->pci_dev, "adl_pci6208");
	if (ret) {
214
215
		dev_err(dev->class_dev,
			"Failed to enable PCI device and request regions\n");
216
		return ret;
217
218
219
	}

	dev->iobase = pci_resource_start(devpriv->pci_dev, 2);
220
221
222

	dev->board_name = thisboard->name;

223
224
225
	ret = comedi_alloc_subdevices(dev, 2);
	if (ret)
		return ret;
226
227
228

	s = dev->subdevices + 0;
	/* analog output subdevice */
229
230
231
232
233
234
235
	s->type		= COMEDI_SUBD_AO;
	s->subdev_flags	= SDF_WRITABLE;
	s->n_chan	= thisboard->ao_chans;
	s->maxdata	= 0xffff;
	s->range_table	= &range_bipolar10;
	s->insn_write	= pci6208_ao_winsn;
	s->insn_read	= pci6208_ao_rinsn;
236

237
	s = dev->subdevices + 1;
238
	/* digital i/o subdevice */
239
240
241
242
243
244
245
246
247
248
	s->type		= COMEDI_SUBD_DIO;
	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
	s->n_chan	= 8;
	s->maxdata	= 1;
	s->range_table	= &range_digital;
	s->insn_bits	= pci6208_dio_insn_bits;
	s->insn_config	= pci6208_dio_insn_config;

	s->io_bits	= 0x0f;
	s->state	= inw(dev->iobase + PCI6208_DIO);
249

250
251
	dev_info(dev->class_dev, "%s: %s, I/O base=0x%04lx\n",
		dev->driver->driver_name, dev->board_name, dev->iobase);
252

253
	return 0;
254
255
}

256
static void pci6208_detach(struct comedi_device *dev)
257
{
258
259
	struct pci6208_private *devpriv = dev->private;

260
261
262
263
264
265
266
	if (devpriv && devpriv->pci_dev) {
		if (dev->iobase)
			comedi_pci_disable(devpriv->pci_dev);
		pci_dev_put(devpriv->pci_dev);
	}
}

267
268
static struct comedi_driver adl_pci6208_driver = {
	.driver_name	= "adl_pci6208",
269
270
271
272
273
	.module		= THIS_MODULE,
	.attach		= pci6208_attach,
	.detach		= pci6208_detach,
};

274
275
static int __devinit adl_pci6208_pci_probe(struct pci_dev *dev,
					   const struct pci_device_id *ent)
276
{
277
	return comedi_pci_auto_config(dev, &adl_pci6208_driver);
278
279
}

280
static void __devexit adl_pci6208_pci_remove(struct pci_dev *dev)
281
282
283
284
{
	comedi_pci_auto_unconfig(dev);
}

285
static DEFINE_PCI_DEVICE_TABLE(adl_pci6208_pci_table) = {
286
287
288
	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, 0x6208) },
	{ 0 }
};
289
MODULE_DEVICE_TABLE(pci, adl_pci6208_pci_table);
290

291
292
293
294
295
static struct pci_driver adl_pci6208_pci_driver = {
	.name		= "adl_pci6208",
	.id_table	= adl_pci6208_pci_table,
	.probe		= adl_pci6208_pci_probe,
	.remove		= __devexit_p(adl_pci6208_pci_remove),
296
};
297
module_comedi_pci_driver(adl_pci6208_driver, adl_pci6208_pci_driver);
298

299
300
301
MODULE_AUTHOR("Comedi http://www.comedi.org");
MODULE_DESCRIPTION("Comedi low-level driver");
MODULE_LICENSE("GPL");