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 static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it);
115 static int pcl726_detach(struct comedi_device *dev);
117 struct pcl726_board {
119 const char *name; /* driver name */
120 int n_aochan; /* num of D/A chans */
121 int num_of_ranges; /* num of ranges */
122 unsigned int IRQbits; /* allowed interrupts */
123 unsigned int io_range; /* len of IO space */
124 char have_dio; /* 1=card have DI/DO ports */
125 int di_hi; /* ports for DI/DO operations */
129 const struct comedi_lrange *const *range_type_list; /* list of supported ranges */
133 static const struct pcl726_board boardtypes[] = {
134 {"pcl726", 6, 6, 0x0000, PCL726_SIZE, 1,
135 PCL726_DI_HI, PCL726_DI_LO, PCL726_DO_HI, PCL726_DO_LO,
137 {"pcl727", 12, 4, 0x0000, PCL727_SIZE, 1,
138 PCL727_DI_HI, PCL727_DI_LO, PCL727_DO_HI, PCL727_DO_LO,
140 {"pcl728", 2, 6, 0x0000, PCL728_SIZE, 0,
143 {"acl6126", 6, 5, 0x96e8, PCL726_SIZE, 1,
144 PCL726_DI_HI, PCL726_DI_LO, PCL726_DO_HI, PCL726_DO_LO,
146 {"acl6128", 2, 6, 0x0000, PCL728_SIZE, 0,
151 #define n_boardtypes (sizeof(boardtypes)/sizeof(struct pcl726_board))
152 #define this_board ((const struct pcl726_board *)dev->board_ptr)
154 static struct comedi_driver driver_pcl726 = {
155 .driver_name = "pcl726",
156 .module = THIS_MODULE,
157 .attach = pcl726_attach,
158 .detach = pcl726_detach,
159 .board_name = &boardtypes[0].name,
160 .num_names = n_boardtypes,
161 .offset = sizeof(struct pcl726_board),
164 COMEDI_INITCLEANUP(driver_pcl726);
166 struct pcl726_private {
169 const struct comedi_lrange *rangelist[12];
170 unsigned int ao_readback[12];
173 #define devpriv ((struct pcl726_private *)dev->private)
175 static int pcl726_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s,
176 struct comedi_insn *insn, unsigned int *data)
180 int chan = CR_CHAN(insn->chanspec);
182 for (n = 0; n < insn->n; n++) {
184 hi = (data[n] >> 8) & 0xf;
185 if (devpriv->bipolar[chan])
188 * the programming info did not say which order
189 * to write bytes. switch the order of the next
190 * two lines if you get glitches.
192 outb(hi, dev->iobase + PCL726_DAC0_HI + 2 * chan);
193 outb(lo, dev->iobase + PCL726_DAC0_LO + 2 * chan);
194 devpriv->ao_readback[chan] = data[n];
200 static int pcl726_ao_insn_read(struct comedi_device *dev, struct comedi_subdevice *s,
201 struct comedi_insn *insn, unsigned int *data)
203 int chan = CR_CHAN(insn->chanspec);
206 for (n = 0; n < insn->n; n++) {
207 data[n] = devpriv->ao_readback[chan];
212 static int pcl726_di_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s,
213 struct comedi_insn *insn, unsigned int *data)
218 data[1] = inb(dev->iobase + this_board->di_lo) |
219 (inb(dev->iobase + this_board->di_hi) << 8);
224 static int pcl726_do_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s,
225 struct comedi_insn *insn, unsigned int *data)
231 s->state &= ~data[0];
232 s->state |= data[0] & data[1];
234 if (data[1] & 0x00ff)
235 outb(s->state & 0xff, dev->iobase + this_board->do_lo);
236 if (data[1] & 0xff00)
237 outb((s->state >> 8), dev->iobase + this_board->do_hi);
244 static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it)
246 struct comedi_subdevice *s;
247 unsigned long iobase;
248 unsigned int iorange;
254 iobase = it->options[0];
255 iorange = this_board->io_range;
256 printk("comedi%d: pcl726: board=%s, 0x%03lx ", dev->minor,
257 this_board->name, iobase);
258 if (!request_region(iobase, iorange, "pcl726")) {
259 printk("I/O port conflict\n");
263 dev->iobase = iobase;
265 dev->board_name = this_board->name;
267 ret = alloc_private(dev, sizeof(struct pcl726_private));
271 for (i = 0; i < 12; i++) {
272 devpriv->bipolar[i] = 0;
273 devpriv->rangelist[i] = &range_unknown;
278 if (boardtypes[board].IRQbits != 0) { /* board support IRQ */
279 irq = it->options[1];
280 devpriv->first_chan = 2;
281 if (irq) { /* we want to use IRQ */
282 if (((1 << irq) & boardtypes[board].IRQbits) == 0) {
284 (", IRQ %d is out of allowed range, DISABLING IT",
286 irq = 0; /* Bad IRQ */
288 if (request_irq(irq, interrupt_pcl818, 0,
291 (", unable to allocate IRQ %d, DISABLING IT",
293 irq = 0; /* Can't use IRQ */
295 printk(", irq=%d", irq);
306 ret = alloc_subdevices(dev, 3);
310 s = dev->subdevices + 0;
312 s->type = COMEDI_SUBD_AO;
313 s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
314 s->n_chan = this_board->n_aochan;
317 s->insn_write = pcl726_ao_insn;
318 s->insn_read = pcl726_ao_insn_read;
319 s->range_table_list = devpriv->rangelist;
320 for (i = 0; i < this_board->n_aochan; i++) {
323 j = it->options[2 + 1];
324 if ((j < 0) || (j >= this_board->num_of_ranges)) {
325 printk("Invalid range for channel %d! Must be 0<=%d<%d\n", i, j, this_board->num_of_ranges - 1);
328 devpriv->rangelist[i] = this_board->range_type_list[j];
329 if (devpriv->rangelist[i]->range[0].min ==
330 -devpriv->rangelist[i]->range[0].max)
331 devpriv->bipolar[i] = 1; /* bipolar range */
334 s = dev->subdevices + 1;
336 if (!this_board->have_dio) {
337 s->type = COMEDI_SUBD_UNUSED;
339 s->type = COMEDI_SUBD_DI;
340 s->subdev_flags = SDF_READABLE | SDF_GROUND;
344 s->insn_bits = pcl726_di_insn_bits;
345 s->range_table = &range_digital;
348 s = dev->subdevices + 2;
350 if (!this_board->have_dio) {
351 s->type = COMEDI_SUBD_UNUSED;
353 s->type = COMEDI_SUBD_DO;
354 s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
358 s->insn_bits = pcl726_do_insn_bits;
359 s->range_table = &range_digital;
365 static int pcl726_detach(struct comedi_device *dev)
367 /* printk("comedi%d: pcl726: remove\n",dev->minor); */
371 free_irq(dev->irq, dev);
376 release_region(dev->iobase, this_board->io_range);