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 comedi_lrange range_4_20mA = { 1, {RANGE_mA(4, 20)} };
94 static const comedi_lrange range_0_20mA = { 1, {RANGE_mA(0, 20)} };
96 static const comedi_lrange *const rangelist_726[] = {
97 &range_unipolar5, &range_unipolar10,
98 &range_bipolar5, &range_bipolar10,
99 &range_4_20mA, &range_unknown
102 static const comedi_lrange *const rangelist_727[] = {
103 &range_unipolar5, &range_unipolar10,
108 static const 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, comedi_devconfig * it);
115 static int pcl726_detach(struct comedi_device * dev);
118 const char *name; // driver name
119 int n_aochan; // num of D/A chans
120 int num_of_ranges; // num of ranges
121 unsigned int IRQbits; // allowed interrupts
122 unsigned int io_range; // len of IO space
123 char have_dio; // 1=card have DI/DO ports
124 int di_hi; // ports for DI/DO operations
128 const comedi_lrange *const *range_type_list; // list of supported ranges
131 static const boardtype boardtypes[] = {
132 {"pcl726", 6, 6, 0x0000, PCL726_SIZE, 1,
133 PCL726_DI_HI, PCL726_DI_LO, PCL726_DO_HI, PCL726_DO_LO,
135 {"pcl727", 12, 4, 0x0000, PCL727_SIZE, 1,
136 PCL727_DI_HI, PCL727_DI_LO, PCL727_DO_HI, PCL727_DO_LO,
138 {"pcl728", 2, 6, 0x0000, PCL728_SIZE, 0,
141 {"acl6126", 6, 5, 0x96e8, PCL726_SIZE, 1,
142 PCL726_DI_HI, PCL726_DI_LO, PCL726_DO_HI, PCL726_DO_LO,
144 {"acl6128", 2, 6, 0x0000, PCL728_SIZE, 0,
149 #define n_boardtypes (sizeof(boardtypes)/sizeof(boardtype))
150 #define this_board ((const boardtype *)dev->board_ptr)
152 static struct comedi_driver driver_pcl726 = {
153 driver_name:"pcl726",
155 attach:pcl726_attach,
156 detach:pcl726_detach,
157 board_name:&boardtypes[0].name,
158 num_names:n_boardtypes,
159 offset:sizeof(boardtype),
162 COMEDI_INITCLEANUP(driver_pcl726);
166 const comedi_lrange *rangelist[12];
167 unsigned int ao_readback[12];
169 #define devpriv ((pcl726_private *)dev->private)
171 static int pcl726_ao_insn(struct comedi_device * dev, struct comedi_subdevice * s,
172 comedi_insn * insn, unsigned int * data)
176 int chan = CR_CHAN(insn->chanspec);
178 for (n = 0; n < insn->n; n++) {
180 hi = (data[n] >> 8) & 0xf;
181 if (devpriv->bipolar[chan])
184 * the programming info did not say which order
185 * to write bytes. switch the order of the next
186 * two lines if you get glitches.
188 outb(hi, dev->iobase + PCL726_DAC0_HI + 2 * chan);
189 outb(lo, dev->iobase + PCL726_DAC0_LO + 2 * chan);
190 devpriv->ao_readback[chan] = data[n];
196 static int pcl726_ao_insn_read(struct comedi_device * dev, struct comedi_subdevice * s,
197 comedi_insn * insn, unsigned int * data)
199 int chan = CR_CHAN(insn->chanspec);
202 for (n = 0; n < insn->n; n++) {
203 data[n] = devpriv->ao_readback[chan];
208 static int pcl726_di_insn_bits(struct comedi_device * dev, struct comedi_subdevice * s,
209 comedi_insn * insn, unsigned int * data)
214 data[1] = inb(dev->iobase + this_board->di_lo) |
215 (inb(dev->iobase + this_board->di_hi) << 8);
220 static int pcl726_do_insn_bits(struct comedi_device * dev, struct comedi_subdevice * s,
221 comedi_insn * insn, unsigned int * data)
227 s->state &= ~data[0];
228 s->state |= data[0] & data[1];
230 if (data[1] & 0x00ff)
231 outb(s->state & 0xff, dev->iobase + this_board->do_lo);
232 if (data[1] & 0xff00)
233 outb((s->state >> 8), dev->iobase + this_board->do_hi);
240 static int pcl726_attach(struct comedi_device * dev, comedi_devconfig * it)
242 struct comedi_subdevice *s;
243 unsigned long iobase;
244 unsigned int iorange;
250 iobase = it->options[0];
251 iorange = this_board->io_range;
252 printk("comedi%d: pcl726: board=%s, 0x%03lx ", dev->minor,
253 this_board->name, iobase);
254 if (!request_region(iobase, iorange, "pcl726")) {
255 printk("I/O port conflict\n");
259 dev->iobase = iobase;
261 dev->board_name = this_board->name;
263 if ((ret = alloc_private(dev, sizeof(pcl726_private))) < 0)
266 for (i = 0; i < 12; i++) {
267 devpriv->bipolar[i] = 0;
268 devpriv->rangelist[i] = &range_unknown;
273 if (boardtypes[board].IRQbits != 0) { /* board support IRQ */
274 irq = it->options[1];
275 devpriv->first_chan = 2;
276 if (irq) { /* we want to use IRQ */
277 if (((1 << irq) & boardtypes[board].IRQbits) == 0) {
279 (", IRQ %d is out of allowed range, DISABLING IT",
281 irq = 0; /* Bad IRQ */
283 if (comedi_request_irq(irq, interrupt_pcl818, 0,
286 (", unable to allocate IRQ %d, DISABLING IT",
288 irq = 0; /* Can't use IRQ */
290 rt_printk(", irq=%d", irq);
301 if ((ret = alloc_subdevices(dev, 3)) < 0)
304 s = dev->subdevices + 0;
306 s->type = COMEDI_SUBD_AO;
307 s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
308 s->n_chan = this_board->n_aochan;
311 s->insn_write = pcl726_ao_insn;
312 s->insn_read = pcl726_ao_insn_read;
313 s->range_table_list = devpriv->rangelist;
314 for (i = 0; i < this_board->n_aochan; i++) {
317 j = it->options[2 + 1];
318 if ((j < 0) || (j >= this_board->num_of_ranges)) {
319 printk("Invalid range for channel %d! Must be 0<=%d<%d\n", i, j, this_board->num_of_ranges - 1);
322 devpriv->rangelist[i] = this_board->range_type_list[j];
323 if (devpriv->rangelist[i]->range[0].min ==
324 -devpriv->rangelist[i]->range[0].max)
325 devpriv->bipolar[i] = 1; /* bipolar range */
328 s = dev->subdevices + 1;
330 if (!this_board->have_dio) {
331 s->type = COMEDI_SUBD_UNUSED;
333 s->type = COMEDI_SUBD_DI;
334 s->subdev_flags = SDF_READABLE | SDF_GROUND;
338 s->insn_bits = pcl726_di_insn_bits;
339 s->range_table = &range_digital;
342 s = dev->subdevices + 2;
344 if (!this_board->have_dio) {
345 s->type = COMEDI_SUBD_UNUSED;
347 s->type = COMEDI_SUBD_DO;
348 s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
352 s->insn_bits = pcl726_do_insn_bits;
353 s->range_table = &range_digital;
359 static int pcl726_detach(struct comedi_device * dev)
361 // printk("comedi%d: pcl726: remove\n",dev->minor);
365 comedi_free_irq(dev->irq, dev);
370 release_region(dev->iobase, this_board->io_range);