Commit | Line | Data |
---|---|---|
456af201 DS |
1 | /* |
2 | comedi/drivers/pcl711.c | |
3 | hardware driver for PC-LabCard PCL-711 and AdSys ACL-8112 | |
4 | and compatibles | |
5 | ||
6 | COMEDI - Linux Control and Measurement Device Interface | |
7 | Copyright (C) 1998 David A. Schleef <ds@schleef.org> | |
8 | Janne Jalkanen <jalkanen@cs.hut.fi> | |
9 | Eric Bunn <ebu@cs.hut.fi> | |
10 | ||
11 | This program is free software; you can redistribute it and/or modify | |
12 | it under the terms of the GNU General Public License as published by | |
13 | the Free Software Foundation; either version 2 of the License, or | |
14 | (at your option) any later version. | |
15 | ||
16 | This program is distributed in the hope that it will be useful, | |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
20 | ||
21 | You should have received a copy of the GNU General Public License | |
22 | along with this program; if not, write to the Free Software | |
23 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
24 | ||
25 | */ | |
26 | /* | |
27 | Driver: pcl711 | |
28 | Description: Advantech PCL-711 and 711b, ADLink ACL-8112 | |
29 | Author: ds, Janne Jalkanen <jalkanen@cs.hut.fi>, Eric Bunn <ebu@cs.hut.fi> | |
30 | Status: mostly complete | |
31 | Devices: [Advantech] PCL-711 (pcl711), PCL-711B (pcl711b), | |
32 | [AdLink] ACL-8112HG (acl8112hg), ACL-8112DG (acl8112dg) | |
33 | ||
34 | Since these boards do not have DMA or FIFOs, only immediate mode is | |
35 | supported. | |
36 | ||
37 | */ | |
38 | ||
39 | /* | |
40 | Dave Andruczyk <dave@tech.buffalostate.edu> also wrote a | |
41 | driver for the PCL-711. I used a few ideas from his driver | |
42 | here. His driver also has more comments, if you are | |
43 | interested in understanding how this driver works. | |
44 | http://tech.buffalostate.edu/~dave/driver/ | |
45 | ||
46 | The ACL-8112 driver was hacked from the sources of the PCL-711 | |
47 | driver (the 744 chip used on the 8112 is almost the same as | |
48 | the 711b chip, but it has more I/O channels) by | |
49 | Janne Jalkanen (jalkanen@cs.hut.fi) and | |
50 | Erik Bunn (ebu@cs.hut.fi). Remerged with the PCL-711 driver | |
51 | by ds. | |
52 | ||
53 | [acl-8112] | |
54 | This driver supports both TRIGNOW and TRIGCLK, | |
55 | but does not yet support DMA transfers. It also supports | |
56 | both high (HG) and low (DG) versions of the card, though | |
57 | the HG version has been untested. | |
58 | ||
59 | */ | |
60 | ||
25436dc9 | 61 | #include <linux/interrupt.h> |
456af201 DS |
62 | #include "../comedidev.h" |
63 | ||
64 | #include <linux/ioport.h> | |
65 | #include <linux/delay.h> | |
66 | ||
67 | #include "8253.h" | |
68 | ||
69 | #define PCL711_SIZE 16 | |
70 | ||
71 | #define PCL711_CTR0 0 | |
72 | #define PCL711_CTR1 1 | |
73 | #define PCL711_CTR2 2 | |
74 | #define PCL711_CTRCTL 3 | |
75 | #define PCL711_AD_LO 4 | |
76 | #define PCL711_DA0_LO 4 | |
77 | #define PCL711_AD_HI 5 | |
78 | #define PCL711_DA0_HI 5 | |
79 | #define PCL711_DI_LO 6 | |
80 | #define PCL711_DA1_LO 6 | |
81 | #define PCL711_DI_HI 7 | |
82 | #define PCL711_DA1_HI 7 | |
83 | #define PCL711_CLRINTR 8 | |
84 | #define PCL711_GAIN 9 | |
85 | #define PCL711_MUX 10 | |
86 | #define PCL711_MODE 11 | |
87 | #define PCL711_SOFTTRIG 12 | |
88 | #define PCL711_DO_LO 13 | |
89 | #define PCL711_DO_HI 14 | |
90 | ||
9ced1de6 | 91 | static const struct comedi_lrange range_pcl711b_ai = { 5, { |
0a85b6f0 MT |
92 | BIP_RANGE(5), |
93 | BIP_RANGE(2.5), | |
94 | BIP_RANGE(1.25), | |
95 | BIP_RANGE(0.625), | |
96 | BIP_RANGE(0.3125) | |
97 | } | |
456af201 | 98 | }; |
0a85b6f0 | 99 | |
9ced1de6 | 100 | static const struct comedi_lrange range_acl8112hg_ai = { 12, { |
0a85b6f0 MT |
101 | BIP_RANGE(5), |
102 | BIP_RANGE(0.5), | |
103 | BIP_RANGE(0.05), | |
104 | BIP_RANGE(0.005), | |
105 | UNI_RANGE(10), | |
106 | UNI_RANGE(1), | |
107 | UNI_RANGE(0.1), | |
108 | UNI_RANGE(0.01), | |
109 | BIP_RANGE(10), | |
110 | BIP_RANGE(1), | |
111 | BIP_RANGE(0.1), | |
112 | BIP_RANGE(0.01) | |
113 | } | |
456af201 | 114 | }; |
0a85b6f0 | 115 | |
9ced1de6 | 116 | static const struct comedi_lrange range_acl8112dg_ai = { 9, { |
0a85b6f0 MT |
117 | BIP_RANGE(5), |
118 | BIP_RANGE(2.5), | |
119 | BIP_RANGE(1.25), | |
120 | BIP_RANGE(0.625), | |
121 | UNI_RANGE(10), | |
122 | UNI_RANGE(5), | |
123 | UNI_RANGE(2.5), | |
124 | UNI_RANGE(1.25), | |
125 | BIP_RANGE(10) | |
126 | } | |
456af201 DS |
127 | }; |
128 | ||
129 | /* | |
130 | * flags | |
131 | */ | |
132 | ||
133 | #define PCL711_TIMEOUT 100 | |
134 | #define PCL711_DRDY 0x10 | |
135 | ||
136 | static const int i8253_osc_base = 500; /* 2 Mhz */ | |
137 | ||
6445296e BP |
138 | struct pcl711_board { |
139 | ||
456af201 DS |
140 | const char *name; |
141 | int is_pcl711b; | |
142 | int is_8112; | |
143 | int is_dg; | |
144 | int n_ranges; | |
145 | int n_aichan; | |
146 | int n_aochan; | |
147 | int maxirq; | |
9ced1de6 | 148 | const struct comedi_lrange *ai_range_type; |
6445296e BP |
149 | }; |
150 | ||
6445296e | 151 | static const struct pcl711_board boardtypes[] = { |
456af201 DS |
152 | {"pcl711", 0, 0, 0, 5, 8, 1, 0, &range_bipolar5}, |
153 | {"pcl711b", 1, 0, 0, 5, 8, 1, 7, &range_pcl711b_ai}, | |
154 | {"acl8112hg", 0, 1, 0, 12, 16, 2, 15, &range_acl8112hg_ai}, | |
155 | {"acl8112dg", 0, 1, 1, 9, 16, 2, 15, &range_acl8112dg_ai}, | |
156 | }; | |
157 | ||
6445296e BP |
158 | #define n_boardtypes (sizeof(boardtypes)/sizeof(struct pcl711_board)) |
159 | #define this_board ((const struct pcl711_board *)dev->board_ptr) | |
456af201 | 160 | |
0a85b6f0 MT |
161 | static int pcl711_attach(struct comedi_device *dev, |
162 | struct comedi_devconfig *it); | |
da91b269 | 163 | static int pcl711_detach(struct comedi_device *dev); |
139dfbdf | 164 | static struct comedi_driver driver_pcl711 = { |
68c3dbff BP |
165 | .driver_name = "pcl711", |
166 | .module = THIS_MODULE, | |
167 | .attach = pcl711_attach, | |
168 | .detach = pcl711_detach, | |
169 | .board_name = &boardtypes[0].name, | |
170 | .num_names = n_boardtypes, | |
171 | .offset = sizeof(struct pcl711_board), | |
456af201 DS |
172 | }; |
173 | ||
7114a280 AT |
174 | static int __init driver_pcl711_init_module(void) |
175 | { | |
176 | return comedi_driver_register(&driver_pcl711); | |
177 | } | |
178 | ||
179 | static void __exit driver_pcl711_cleanup_module(void) | |
180 | { | |
181 | comedi_driver_unregister(&driver_pcl711); | |
182 | } | |
183 | ||
184 | module_init(driver_pcl711_init_module); | |
185 | module_exit(driver_pcl711_cleanup_module); | |
456af201 | 186 | |
e1c8638f BP |
187 | struct pcl711_private { |
188 | ||
456af201 DS |
189 | int board; |
190 | int adchan; | |
191 | int ntrig; | |
192 | int aip[8]; | |
193 | int mode; | |
790c5541 | 194 | unsigned int ao_readback[2]; |
456af201 DS |
195 | unsigned int divisor1; |
196 | unsigned int divisor2; | |
e1c8638f BP |
197 | }; |
198 | ||
e1c8638f | 199 | #define devpriv ((struct pcl711_private *)dev->private) |
456af201 | 200 | |
70265d24 | 201 | static irqreturn_t pcl711_interrupt(int irq, void *d) |
456af201 DS |
202 | { |
203 | int lo, hi; | |
204 | int data; | |
71b5f4f1 | 205 | struct comedi_device *dev = d; |
34c43922 | 206 | struct comedi_subdevice *s = dev->subdevices + 0; |
456af201 DS |
207 | |
208 | if (!dev->attached) { | |
209 | comedi_error(dev, "spurious interrupt"); | |
210 | return IRQ_HANDLED; | |
211 | } | |
212 | ||
213 | hi = inb(dev->iobase + PCL711_AD_HI); | |
214 | lo = inb(dev->iobase + PCL711_AD_LO); | |
215 | outb(0, dev->iobase + PCL711_CLRINTR); | |
216 | ||
217 | data = (hi << 8) | lo; | |
218 | ||
219 | /* FIXME! Nothing else sets ntrig! */ | |
220 | if (!(--devpriv->ntrig)) { | |
266bfbdd | 221 | if (this_board->is_8112) |
456af201 | 222 | outb(1, dev->iobase + PCL711_MODE); |
266bfbdd | 223 | else |
456af201 | 224 | outb(0, dev->iobase + PCL711_MODE); |
456af201 DS |
225 | |
226 | s->async->events |= COMEDI_CB_EOA; | |
227 | } | |
228 | comedi_event(dev, s); | |
229 | return IRQ_HANDLED; | |
230 | } | |
231 | ||
da91b269 | 232 | static void pcl711_set_changain(struct comedi_device *dev, int chan) |
456af201 DS |
233 | { |
234 | int chan_register; | |
235 | ||
236 | outb(CR_RANGE(chan), dev->iobase + PCL711_GAIN); | |
237 | ||
238 | chan_register = CR_CHAN(chan); | |
239 | ||
240 | if (this_board->is_8112) { | |
241 | ||
242 | /* | |
243 | * Set the correct channel. The two channel banks are switched | |
244 | * using the mask value. | |
266bfbdd BA |
245 | * NB: To use differential channels, you should use |
246 | * mask = 0x30, but I haven't written the support for this | |
247 | * yet. /JJ | |
456af201 DS |
248 | */ |
249 | ||
266bfbdd | 250 | if (chan_register >= 8) |
456af201 | 251 | chan_register = 0x20 | (chan_register & 0x7); |
266bfbdd | 252 | else |
456af201 | 253 | chan_register |= 0x10; |
456af201 DS |
254 | } else { |
255 | outb(chan_register, dev->iobase + PCL711_MUX); | |
256 | } | |
257 | } | |
258 | ||
da91b269 | 259 | static int pcl711_ai_insn(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 | 260 | struct comedi_insn *insn, unsigned int *data) |
456af201 DS |
261 | { |
262 | int i, n; | |
263 | int hi, lo; | |
264 | ||
265 | pcl711_set_changain(dev, insn->chanspec); | |
266 | ||
267 | for (n = 0; n < insn->n; n++) { | |
268 | /* | |
266bfbdd BA |
269 | * Write the correct mode (software polling) and start polling |
270 | * by writing to the trigger register | |
456af201 DS |
271 | */ |
272 | outb(1, dev->iobase + PCL711_MODE); | |
273 | ||
266bfbdd | 274 | if (!this_board->is_8112) |
456af201 | 275 | outb(0, dev->iobase + PCL711_SOFTTRIG); |
456af201 DS |
276 | |
277 | i = PCL711_TIMEOUT; | |
278 | while (--i) { | |
279 | hi = inb(dev->iobase + PCL711_AD_HI); | |
280 | if (!(hi & PCL711_DRDY)) | |
281 | goto ok; | |
5f74ea14 | 282 | udelay(1); |
456af201 | 283 | } |
8f4e80af | 284 | printk(KERN_ERR "comedi%d: pcl711: A/D timeout\n", dev->minor); |
456af201 DS |
285 | return -ETIME; |
286 | ||
0a85b6f0 | 287 | ok: |
456af201 DS |
288 | lo = inb(dev->iobase + PCL711_AD_LO); |
289 | ||
290 | data[n] = ((hi & 0xf) << 8) | lo; | |
291 | } | |
292 | ||
293 | return n; | |
294 | } | |
295 | ||
0a85b6f0 MT |
296 | static int pcl711_ai_cmdtest(struct comedi_device *dev, |
297 | struct comedi_subdevice *s, struct comedi_cmd *cmd) | |
456af201 DS |
298 | { |
299 | int tmp; | |
300 | int err = 0; | |
301 | ||
302 | /* step 1 */ | |
303 | tmp = cmd->start_src; | |
304 | cmd->start_src &= TRIG_NOW; | |
305 | if (!cmd->start_src || tmp != cmd->start_src) | |
306 | err++; | |
307 | ||
308 | tmp = cmd->scan_begin_src; | |
309 | cmd->scan_begin_src &= TRIG_TIMER | TRIG_EXT; | |
310 | if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src) | |
311 | err++; | |
312 | ||
313 | tmp = cmd->convert_src; | |
314 | cmd->convert_src &= TRIG_NOW; | |
315 | if (!cmd->convert_src || tmp != cmd->convert_src) | |
316 | err++; | |
317 | ||
318 | tmp = cmd->scan_end_src; | |
319 | cmd->scan_end_src &= TRIG_COUNT; | |
320 | if (!cmd->scan_end_src || tmp != cmd->scan_end_src) | |
321 | err++; | |
322 | ||
323 | tmp = cmd->stop_src; | |
324 | cmd->stop_src &= TRIG_COUNT | TRIG_NONE; | |
325 | if (!cmd->stop_src || tmp != cmd->stop_src) | |
326 | err++; | |
327 | ||
328 | if (err) | |
329 | return 1; | |
330 | ||
331 | /* step 2 */ | |
332 | ||
333 | if (cmd->scan_begin_src != TRIG_TIMER && | |
0a85b6f0 | 334 | cmd->scan_begin_src != TRIG_EXT) |
456af201 DS |
335 | err++; |
336 | if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE) | |
337 | err++; | |
338 | ||
339 | if (err) | |
340 | return 2; | |
341 | ||
342 | /* step 3 */ | |
343 | ||
344 | if (cmd->start_arg != 0) { | |
345 | cmd->start_arg = 0; | |
346 | err++; | |
347 | } | |
348 | if (cmd->scan_begin_src == TRIG_EXT) { | |
349 | if (cmd->scan_begin_arg != 0) { | |
350 | cmd->scan_begin_arg = 0; | |
351 | err++; | |
352 | } | |
353 | } else { | |
354 | #define MAX_SPEED 1000 | |
355 | #define TIMER_BASE 100 | |
356 | if (cmd->scan_begin_arg < MAX_SPEED) { | |
357 | cmd->scan_begin_arg = MAX_SPEED; | |
358 | err++; | |
359 | } | |
360 | } | |
361 | if (cmd->convert_arg != 0) { | |
362 | cmd->convert_arg = 0; | |
363 | err++; | |
364 | } | |
365 | if (cmd->scan_end_arg != cmd->chanlist_len) { | |
366 | cmd->scan_end_arg = cmd->chanlist_len; | |
367 | err++; | |
368 | } | |
369 | if (cmd->stop_src == TRIG_NONE) { | |
370 | if (cmd->stop_arg != 0) { | |
371 | cmd->stop_arg = 0; | |
372 | err++; | |
373 | } | |
374 | } else { | |
375 | /* ignore */ | |
376 | } | |
377 | ||
378 | if (err) | |
379 | return 3; | |
380 | ||
381 | /* step 4 */ | |
382 | ||
383 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
384 | tmp = cmd->scan_begin_arg; | |
385 | i8253_cascade_ns_to_timer_2div(TIMER_BASE, | |
0a85b6f0 MT |
386 | &devpriv->divisor1, |
387 | &devpriv->divisor2, | |
388 | &cmd->scan_begin_arg, | |
389 | cmd->flags & TRIG_ROUND_MASK); | |
456af201 DS |
390 | if (tmp != cmd->scan_begin_arg) |
391 | err++; | |
392 | } | |
393 | ||
394 | if (err) | |
395 | return 4; | |
396 | ||
397 | return 0; | |
398 | } | |
399 | ||
da91b269 | 400 | static int pcl711_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) |
456af201 DS |
401 | { |
402 | int timer1, timer2; | |
ea6d0d4c | 403 | struct comedi_cmd *cmd = &s->async->cmd; |
456af201 DS |
404 | |
405 | pcl711_set_changain(dev, cmd->chanlist[0]); | |
406 | ||
407 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
408 | /* | |
409 | * Set timers | |
410 | * timer chip is an 8253, with timers 1 and 2 | |
411 | * cascaded | |
412 | * 0x74 = Select Counter 1 | LSB/MSB | Mode=2 | Binary | |
413 | * Mode 2 = Rate generator | |
414 | * | |
415 | * 0xb4 = Select Counter 2 | LSB/MSB | Mode=2 | Binary | |
416 | */ | |
417 | ||
48b1aff5 | 418 | timer1 = timer2 = 0; |
456af201 | 419 | i8253_cascade_ns_to_timer(i8253_osc_base, &timer1, &timer2, |
0a85b6f0 MT |
420 | &cmd->scan_begin_arg, |
421 | TRIG_ROUND_NEAREST); | |
456af201 DS |
422 | |
423 | outb(0x74, dev->iobase + PCL711_CTRCTL); | |
424 | outb(timer1 & 0xff, dev->iobase + PCL711_CTR1); | |
425 | outb((timer1 >> 8) & 0xff, dev->iobase + PCL711_CTR1); | |
426 | outb(0xb4, dev->iobase + PCL711_CTRCTL); | |
427 | outb(timer2 & 0xff, dev->iobase + PCL711_CTR2); | |
428 | outb((timer2 >> 8) & 0xff, dev->iobase + PCL711_CTR2); | |
429 | ||
430 | /* clear pending interrupts (just in case) */ | |
431 | outb(0, dev->iobase + PCL711_CLRINTR); | |
432 | ||
433 | /* | |
434 | * Set mode to IRQ transfer | |
435 | */ | |
436 | outb(devpriv->mode | 6, dev->iobase + PCL711_MODE); | |
437 | } else { | |
438 | /* external trigger */ | |
439 | outb(devpriv->mode | 3, dev->iobase + PCL711_MODE); | |
440 | } | |
441 | ||
442 | return 0; | |
443 | } | |
444 | ||
445 | /* | |
446 | analog output | |
447 | */ | |
da91b269 | 448 | static int pcl711_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 | 449 | struct comedi_insn *insn, unsigned int *data) |
456af201 DS |
450 | { |
451 | int n; | |
452 | int chan = CR_CHAN(insn->chanspec); | |
453 | ||
454 | for (n = 0; n < insn->n; n++) { | |
455 | outb((data[n] & 0xff), | |
0a85b6f0 | 456 | dev->iobase + (chan ? PCL711_DA1_LO : PCL711_DA0_LO)); |
456af201 | 457 | outb((data[n] >> 8), |
0a85b6f0 | 458 | dev->iobase + (chan ? PCL711_DA1_HI : PCL711_DA0_HI)); |
456af201 DS |
459 | |
460 | devpriv->ao_readback[chan] = data[n]; | |
461 | } | |
462 | ||
463 | return n; | |
464 | } | |
465 | ||
0a85b6f0 MT |
466 | static int pcl711_ao_insn_read(struct comedi_device *dev, |
467 | struct comedi_subdevice *s, | |
468 | struct comedi_insn *insn, unsigned int *data) | |
456af201 DS |
469 | { |
470 | int n; | |
471 | int chan = CR_CHAN(insn->chanspec); | |
472 | ||
266bfbdd | 473 | for (n = 0; n < insn->n; n++) |
456af201 | 474 | data[n] = devpriv->ao_readback[chan]; |
456af201 DS |
475 | |
476 | return n; | |
477 | ||
478 | } | |
479 | ||
480 | /* Digital port read - Untested on 8112 */ | |
0a85b6f0 MT |
481 | static int pcl711_di_insn_bits(struct comedi_device *dev, |
482 | struct comedi_subdevice *s, | |
483 | struct comedi_insn *insn, unsigned int *data) | |
456af201 DS |
484 | { |
485 | if (insn->n != 2) | |
486 | return -EINVAL; | |
487 | ||
488 | data[1] = inb(dev->iobase + PCL711_DI_LO) | | |
0a85b6f0 | 489 | (inb(dev->iobase + PCL711_DI_HI) << 8); |
456af201 DS |
490 | |
491 | return 2; | |
492 | } | |
493 | ||
494 | /* Digital port write - Untested on 8112 */ | |
0a85b6f0 MT |
495 | static int pcl711_do_insn_bits(struct comedi_device *dev, |
496 | struct comedi_subdevice *s, | |
497 | struct comedi_insn *insn, unsigned int *data) | |
456af201 DS |
498 | { |
499 | if (insn->n != 2) | |
500 | return -EINVAL; | |
501 | ||
502 | if (data[0]) { | |
503 | s->state &= ~data[0]; | |
504 | s->state |= data[0] & data[1]; | |
505 | } | |
506 | if (data[0] & 0x00ff) | |
507 | outb(s->state & 0xff, dev->iobase + PCL711_DO_LO); | |
508 | if (data[0] & 0xff00) | |
509 | outb((s->state >> 8), dev->iobase + PCL711_DO_HI); | |
510 | ||
511 | data[1] = s->state; | |
512 | ||
513 | return 2; | |
514 | } | |
515 | ||
516 | /* Free any resources that we have claimed */ | |
da91b269 | 517 | static int pcl711_detach(struct comedi_device *dev) |
456af201 | 518 | { |
8f4e80af | 519 | printk(KERN_INFO "comedi%d: pcl711: remove\n", dev->minor); |
456af201 DS |
520 | |
521 | if (dev->irq) | |
5f74ea14 | 522 | free_irq(dev->irq, dev); |
456af201 DS |
523 | |
524 | if (dev->iobase) | |
525 | release_region(dev->iobase, PCL711_SIZE); | |
526 | ||
527 | return 0; | |
528 | } | |
529 | ||
530 | /* Initialization */ | |
da91b269 | 531 | static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it) |
456af201 DS |
532 | { |
533 | int ret; | |
534 | unsigned long iobase; | |
535 | unsigned int irq; | |
34c43922 | 536 | struct comedi_subdevice *s; |
456af201 DS |
537 | |
538 | /* claim our I/O space */ | |
539 | ||
540 | iobase = it->options[0]; | |
8f4e80af | 541 | printk(KERN_INFO "comedi%d: pcl711: 0x%04lx ", dev->minor, iobase); |
456af201 DS |
542 | if (!request_region(iobase, PCL711_SIZE, "pcl711")) { |
543 | printk("I/O port conflict\n"); | |
544 | return -EIO; | |
545 | } | |
546 | dev->iobase = iobase; | |
547 | ||
548 | /* there should be a sanity check here */ | |
549 | ||
550 | /* set up some name stuff */ | |
551 | dev->board_name = this_board->name; | |
552 | ||
553 | /* grab our IRQ */ | |
554 | irq = it->options[1]; | |
555 | if (irq > this_board->maxirq) { | |
8f4e80af | 556 | printk(KERN_ERR "irq out of range\n"); |
456af201 DS |
557 | return -EINVAL; |
558 | } | |
559 | if (irq) { | |
5f74ea14 | 560 | if (request_irq(irq, pcl711_interrupt, 0, "pcl711", dev)) { |
8f4e80af | 561 | printk(KERN_ERR "unable to allocate irq %u\n", irq); |
456af201 DS |
562 | return -EINVAL; |
563 | } else { | |
8f4e80af | 564 | printk(KERN_INFO "( irq = %u )\n", irq); |
456af201 DS |
565 | } |
566 | } | |
567 | dev->irq = irq; | |
568 | ||
c3744138 BP |
569 | ret = alloc_subdevices(dev, 4); |
570 | if (ret < 0) | |
456af201 | 571 | return ret; |
c3744138 BP |
572 | |
573 | ret = alloc_private(dev, sizeof(struct pcl711_private)); | |
574 | if (ret < 0) | |
456af201 DS |
575 | return ret; |
576 | ||
577 | s = dev->subdevices + 0; | |
578 | /* AI subdevice */ | |
579 | s->type = COMEDI_SUBD_AI; | |
580 | s->subdev_flags = SDF_READABLE | SDF_GROUND; | |
581 | s->n_chan = this_board->n_aichan; | |
582 | s->maxdata = 0xfff; | |
583 | s->len_chanlist = 1; | |
584 | s->range_table = this_board->ai_range_type; | |
585 | s->insn_read = pcl711_ai_insn; | |
586 | if (irq) { | |
587 | dev->read_subdev = s; | |
588 | s->subdev_flags |= SDF_CMD_READ; | |
589 | s->do_cmdtest = pcl711_ai_cmdtest; | |
590 | s->do_cmd = pcl711_ai_cmd; | |
591 | } | |
592 | ||
593 | s++; | |
594 | /* AO subdevice */ | |
595 | s->type = COMEDI_SUBD_AO; | |
596 | s->subdev_flags = SDF_WRITABLE; | |
597 | s->n_chan = this_board->n_aochan; | |
598 | s->maxdata = 0xfff; | |
599 | s->len_chanlist = 1; | |
600 | s->range_table = &range_bipolar5; | |
601 | s->insn_write = pcl711_ao_insn; | |
602 | s->insn_read = pcl711_ao_insn_read; | |
603 | ||
604 | s++; | |
605 | /* 16-bit digital input */ | |
606 | s->type = COMEDI_SUBD_DI; | |
607 | s->subdev_flags = SDF_READABLE; | |
608 | s->n_chan = 16; | |
609 | s->maxdata = 1; | |
610 | s->len_chanlist = 16; | |
611 | s->range_table = &range_digital; | |
612 | s->insn_bits = pcl711_di_insn_bits; | |
613 | ||
614 | s++; | |
615 | /* 16-bit digital out */ | |
616 | s->type = COMEDI_SUBD_DO; | |
617 | s->subdev_flags = SDF_WRITABLE; | |
618 | s->n_chan = 16; | |
619 | s->maxdata = 1; | |
620 | s->len_chanlist = 16; | |
621 | s->range_table = &range_digital; | |
622 | s->state = 0; | |
623 | s->insn_bits = pcl711_do_insn_bits; | |
624 | ||
625 | /* | |
626 | this is the "base value" for the mode register, which is | |
627 | used for the irq on the PCL711 | |
628 | */ | |
266bfbdd | 629 | if (this_board->is_pcl711b) |
456af201 | 630 | devpriv->mode = (dev->irq << 4); |
456af201 DS |
631 | |
632 | /* clear DAC */ | |
633 | outb(0, dev->iobase + PCL711_DA0_LO); | |
634 | outb(0, dev->iobase + PCL711_DA0_HI); | |
635 | outb(0, dev->iobase + PCL711_DA1_LO); | |
636 | outb(0, dev->iobase + PCL711_DA1_HI); | |
637 | ||
8f4e80af | 638 | printk(KERN_INFO "\n"); |
456af201 DS |
639 | |
640 | return 0; | |
641 | } | |
90f703d3 AT |
642 | |
643 | MODULE_AUTHOR("Comedi http://www.comedi.org"); | |
644 | MODULE_DESCRIPTION("Comedi low-level driver"); | |
645 | MODULE_LICENSE("GPL"); |