2 comedi/drivers/pcl726.c
4 hardware driver for Advantech cards:
5 card: PCL-726, PCL-727, PCL-728
6 driver: pcl726, pcl727, pcl728
8 card: ACL-6126, ACL-6128
9 driver: acl6126, acl6128
11 COMEDI - Linux Control and Measurement Device Interface
12 Copyright (C) 1998 David A. Schleef <ds@schleef.org>
14 This program is free software; you can redistribute it and/or modify
15 it under the terms of the GNU General Public License as published by
16 the Free Software Foundation; either version 2 of the License, or
17 (at your option) any later version.
19 This program is distributed in the hope that it will be useful,
20 but WITHOUT ANY WARRANTY; without even the implied warranty of
21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 GNU General Public License for more details.
24 You should have received a copy of the GNU General Public License
25 along with this program; if not, write to the Free Software
26 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
31 Description: Advantech PCL-726 & compatibles
34 Devices: [Advantech] PCL-726 (pcl726), PCL-727 (pcl727), PCL-728 (pcl728),
35 [ADLink] ACL-6126 (acl6126), ACL-6128 (acl6128)
37 Interrupts are not supported.
41 [2]...[7] - D/A output range for channel 1-6:
42 0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V,
43 4: 4-20mA, 5: unknown (external reference)
47 [2]...[13] - D/A output range for channel 1-12:
48 0: 0-5V, 1: 0-10V, 2: +/-5V,
51 Options for PCL-728 and ACL-6128:
53 [2], [3] - D/A output range for channel 1 and 2:
54 0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V,
59 [1] - IRQ (0=disable, 3, 5, 6, 7, 9, 10, 11, 12, 15) (currently ignored)
60 [2]...[7] - D/A output range for channel 1-6:
61 0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V,
66 Thanks to Circuit Specialists for having programming info (!) on
67 their web page. (http://www.cir.com/)
70 #include "../comedidev.h"
72 #include <linux/ioport.h>
74 #undef ACL6126_IRQ /* no interrupt support (yet) */
76 #define PCL726_SIZE 16
77 #define PCL727_SIZE 32
80 #define PCL726_DAC0_HI 0
81 #define PCL726_DAC0_LO 1
83 #define PCL726_DO_HI 12
84 #define PCL726_DO_LO 13
85 #define PCL726_DI_HI 14
86 #define PCL726_DI_LO 15
88 #define PCL727_DO_HI 24
89 #define PCL727_DO_LO 25
90 #define PCL727_DI_HI 0
91 #define PCL727_DI_LO 1
93 static const struct comedi_lrange range_4_20mA = { 1, {RANGE_mA(4, 20)} };
94 static const struct comedi_lrange range_0_20mA = { 1, {RANGE_mA(0, 20)} };
96 static const struct comedi_lrange *const rangelist_726[] = {
97 &range_unipolar5, &range_unipolar10,
98 &range_bipolar5, &range_bipolar10,
99 &range_4_20mA, &range_unknown
102 static const struct comedi_lrange *const rangelist_727[] = {
103 &range_unipolar5, &range_unipolar10,
108 static const struct comedi_lrange *const rangelist_728[] = {
109 &range_unipolar5, &range_unipolar10,
110 &range_bipolar5, &range_bipolar10,
111 &range_4_20mA, &range_0_20mA
114 struct pcl726_board {
116 const char *name; /* driver name */
117 int n_aochan; /* num of D/A chans */
118 int num_of_ranges; /* num of ranges */
119 unsigned int IRQbits; /* allowed interrupts */
120 unsigned int io_range; /* len of IO space */
121 char have_dio; /* 1=card have DI/DO ports */
122 int di_hi; /* ports for DI/DO operations */
126 const struct comedi_lrange *const *range_type_list;
127 /* list of supported ranges */
130 static const struct pcl726_board boardtypes[] = {
131 {"pcl726", 6, 6, 0x0000, PCL726_SIZE, 1,
132 PCL726_DI_HI, PCL726_DI_LO, PCL726_DO_HI, PCL726_DO_LO,
134 {"pcl727", 12, 4, 0x0000, PCL727_SIZE, 1,
135 PCL727_DI_HI, PCL727_DI_LO, PCL727_DO_HI, PCL727_DO_LO,
137 {"pcl728", 2, 6, 0x0000, PCL728_SIZE, 0,
140 {"acl6126", 6, 5, 0x96e8, PCL726_SIZE, 1,
141 PCL726_DI_HI, PCL726_DI_LO, PCL726_DO_HI, PCL726_DO_LO,
143 {"acl6128", 2, 6, 0x0000, PCL728_SIZE, 0,
148 struct pcl726_private {
151 const struct comedi_lrange *rangelist[12];
152 unsigned int ao_readback[12];
155 #define devpriv ((struct pcl726_private *)dev->private)
157 static int pcl726_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s,
158 struct comedi_insn *insn, unsigned int *data)
162 int chan = CR_CHAN(insn->chanspec);
164 for (n = 0; n < insn->n; n++) {
166 hi = (data[n] >> 8) & 0xf;
167 if (devpriv->bipolar[chan])
170 * the programming info did not say which order
171 * to write bytes. switch the order of the next
172 * two lines if you get glitches.
174 outb(hi, dev->iobase + PCL726_DAC0_HI + 2 * chan);
175 outb(lo, dev->iobase + PCL726_DAC0_LO + 2 * chan);
176 devpriv->ao_readback[chan] = data[n];
182 static int pcl726_ao_insn_read(struct comedi_device *dev,
183 struct comedi_subdevice *s,
184 struct comedi_insn *insn, unsigned int *data)
186 int chan = CR_CHAN(insn->chanspec);
189 for (n = 0; n < insn->n; n++)
190 data[n] = devpriv->ao_readback[chan];
194 static int pcl726_di_insn_bits(struct comedi_device *dev,
195 struct comedi_subdevice *s,
196 struct comedi_insn *insn, unsigned int *data)
198 const struct pcl726_board *board = comedi_board(dev);
200 data[1] = inb(dev->iobase + board->di_lo) |
201 (inb(dev->iobase + board->di_hi) << 8);
206 static int pcl726_do_insn_bits(struct comedi_device *dev,
207 struct comedi_subdevice *s,
208 struct comedi_insn *insn, unsigned int *data)
210 const struct pcl726_board *board = comedi_board(dev);
213 s->state &= ~data[0];
214 s->state |= data[0] & data[1];
216 if (data[1] & 0x00ff)
217 outb(s->state & 0xff, dev->iobase + board->do_lo);
218 if (data[1] & 0xff00)
219 outb((s->state >> 8), dev->iobase + board->do_hi);
226 static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it)
228 const struct pcl726_board *board = comedi_board(dev);
229 struct comedi_subdevice *s;
230 unsigned long iobase;
231 unsigned int iorange;
237 iobase = it->options[0];
238 iorange = board->io_range;
239 printk(KERN_WARNING "comedi%d: pcl726: board=%s, 0x%03lx ", dev->minor,
240 board->name, iobase);
241 if (!request_region(iobase, iorange, "pcl726")) {
242 printk(KERN_WARNING "I/O port conflict\n");
246 dev->iobase = iobase;
248 dev->board_name = board->name;
250 ret = alloc_private(dev, sizeof(struct pcl726_private));
254 for (i = 0; i < 12; i++) {
255 devpriv->bipolar[i] = 0;
256 devpriv->rangelist[i] = &range_unknown;
261 if (boardtypes[board].IRQbits != 0) { /* board support IRQ */
262 irq = it->options[1];
263 devpriv->first_chan = 2;
264 if (irq) { /* we want to use IRQ */
265 if (((1 << irq) & boardtypes[board].IRQbits) == 0) {
267 ", IRQ %d is out of allowed range,"
268 " DISABLING IT", irq);
269 irq = 0; /* Bad IRQ */
271 if (request_irq(irq, interrupt_pcl818, 0,
274 ", unable to allocate IRQ %d,"
275 " DISABLING IT", irq);
276 irq = 0; /* Can't use IRQ */
278 printk(", irq=%d", irq);
289 ret = comedi_alloc_subdevices(dev, 3);
293 s = dev->subdevices + 0;
295 s->type = COMEDI_SUBD_AO;
296 s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
297 s->n_chan = board->n_aochan;
300 s->insn_write = pcl726_ao_insn;
301 s->insn_read = pcl726_ao_insn_read;
302 s->range_table_list = devpriv->rangelist;
303 for (i = 0; i < board->n_aochan; i++) {
306 j = it->options[2 + 1];
307 if ((j < 0) || (j >= board->num_of_ranges)) {
309 ("Invalid range for channel %d! Must be 0<=%d<%d\n",
310 i, j, board->num_of_ranges - 1);
313 devpriv->rangelist[i] = board->range_type_list[j];
314 if (devpriv->rangelist[i]->range[0].min ==
315 -devpriv->rangelist[i]->range[0].max)
316 devpriv->bipolar[i] = 1; /* bipolar range */
319 s = dev->subdevices + 1;
321 if (!board->have_dio) {
322 s->type = COMEDI_SUBD_UNUSED;
324 s->type = COMEDI_SUBD_DI;
325 s->subdev_flags = SDF_READABLE | SDF_GROUND;
329 s->insn_bits = pcl726_di_insn_bits;
330 s->range_table = &range_digital;
333 s = dev->subdevices + 2;
335 if (!board->have_dio) {
336 s->type = COMEDI_SUBD_UNUSED;
338 s->type = COMEDI_SUBD_DO;
339 s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
343 s->insn_bits = pcl726_do_insn_bits;
344 s->range_table = &range_digital;
350 static void pcl726_detach(struct comedi_device *dev)
352 const struct pcl726_board *board = comedi_board(dev);
356 free_irq(dev->irq, dev);
359 release_region(dev->iobase, board->io_range);
362 static struct comedi_driver pcl726_driver = {
363 .driver_name = "pcl726",
364 .module = THIS_MODULE,
365 .attach = pcl726_attach,
366 .detach = pcl726_detach,
367 .board_name = &boardtypes[0].name,
368 .num_names = ARRAY_SIZE(boardtypes),
369 .offset = sizeof(struct pcl726_board),
371 module_comedi_driver(pcl726_driver);
373 MODULE_AUTHOR("Comedi http://www.comedi.org");
374 MODULE_DESCRIPTION("Comedi low-level driver");
375 MODULE_LICENSE("GPL");