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111#include <linux/interrupt.h>
112#include <linux/gfp.h>
113#include "../comedidev.h"
114
115#include <linux/delay.h>
116#include <linux/ioport.h>
117#include <linux/io.h>
118#include <asm/dma.h>
119
120#include "8253.h"
121
122
123#undef PCL812_EXTDEBUG
124
125
126#define boardPCL812PG 0
127#define boardPCL813B 1
128#define boardPCL812 2
129#define boardPCL813 3
130#define boardISO813 5
131#define boardACL8113 6
132#define boardACL8112 7
133#define boardACL8216 8
134#define boardA821 9
135
136#define PCLx1x_IORANGE 16
137
138#define PCL812_CTR0 0
139#define PCL812_CTR1 1
140#define PCL812_CTR2 2
141#define PCL812_CTRCTL 3
142#define PCL812_AD_LO 4
143#define PCL812_DA1_LO 4
144#define PCL812_AD_HI 5
145#define PCL812_DA1_HI 5
146#define PCL812_DA2_LO 6
147#define PCL812_DI_LO 6
148#define PCL812_DA2_HI 7
149#define PCL812_DI_HI 7
150#define PCL812_CLRINT 8
151#define PCL812_GAIN 9
152#define PCL812_MUX 10
153#define PCL812_MODE 11
154#define PCL812_CNTENABLE 10
155#define PCL812_SOFTTRIG 12
156#define PCL812_DO_LO 13
157#define PCL812_DO_HI 14
158
159#define PCL812_DRDY 0x10
160
161#define ACL8216_STATUS 8
162
163#define ACL8216_DRDY 0x20
164
165#define MAX_CHANLIST_LEN 256
166
167static const struct comedi_lrange range_pcl812pg_ai = { 5, {
168 BIP_RANGE(5),
169 BIP_RANGE(2.5),
170 BIP_RANGE(1.25),
171 BIP_RANGE(0.625),
172 BIP_RANGE(0.3125),
173 }
174};
175
176static const struct comedi_lrange range_pcl812pg2_ai = { 5, {
177 BIP_RANGE(10),
178 BIP_RANGE(5),
179 BIP_RANGE(2.5),
180 BIP_RANGE(1.25),
181 BIP_RANGE(0.625),
182 }
183};
184
185static const struct comedi_lrange range812_bipolar1_25 = { 1, {
186 BIP_RANGE(1.25),
187 }
188};
189
190static const struct comedi_lrange range812_bipolar0_625 = { 1, {
191 BIP_RANGE
192 (0.625),
193 }
194};
195
196static const struct comedi_lrange range812_bipolar0_3125 = { 1, {
197 BIP_RANGE
198 (0.3125),
199 }
200};
201
202static const struct comedi_lrange range_pcl813b_ai = { 4, {
203 BIP_RANGE(5),
204 BIP_RANGE(2.5),
205 BIP_RANGE(1.25),
206 BIP_RANGE(0.625),
207 }
208};
209
210static const struct comedi_lrange range_pcl813b2_ai = { 4, {
211 UNI_RANGE(10),
212 UNI_RANGE(5),
213 UNI_RANGE(2.5),
214 UNI_RANGE(1.25),
215 }
216};
217
218static const struct comedi_lrange range_iso813_1_ai = { 5, {
219 BIP_RANGE(5),
220 BIP_RANGE(2.5),
221 BIP_RANGE(1.25),
222 BIP_RANGE(0.625),
223 BIP_RANGE(0.3125),
224 }
225};
226
227static const struct comedi_lrange range_iso813_1_2_ai = { 5, {
228 UNI_RANGE(10),
229 UNI_RANGE(5),
230 UNI_RANGE(2.5),
231 UNI_RANGE(1.25),
232 UNI_RANGE(0.625),
233 }
234};
235
236static const struct comedi_lrange range_iso813_2_ai = { 4, {
237 BIP_RANGE(5),
238 BIP_RANGE(2.5),
239 BIP_RANGE(1.25),
240 BIP_RANGE(0.625),
241 }
242};
243
244static const struct comedi_lrange range_iso813_2_2_ai = { 4, {
245 UNI_RANGE(10),
246 UNI_RANGE(5),
247 UNI_RANGE(2.5),
248 UNI_RANGE(1.25),
249 }
250};
251
252static const struct comedi_lrange range_acl8113_1_ai = { 4, {
253 BIP_RANGE(5),
254 BIP_RANGE(2.5),
255 BIP_RANGE(1.25),
256 BIP_RANGE(0.625),
257 }
258};
259
260static const struct comedi_lrange range_acl8113_1_2_ai = { 4, {
261 UNI_RANGE(10),
262 UNI_RANGE(5),
263 UNI_RANGE(2.5),
264 UNI_RANGE(1.25),
265 }
266};
267
268static const struct comedi_lrange range_acl8113_2_ai = { 3, {
269 BIP_RANGE(5),
270 BIP_RANGE(2.5),
271 BIP_RANGE(1.25),
272 }
273};
274
275static const struct comedi_lrange range_acl8113_2_2_ai = { 3, {
276 UNI_RANGE(10),
277 UNI_RANGE(5),
278 UNI_RANGE(2.5),
279 }
280};
281
282static const struct comedi_lrange range_acl8112dg_ai = { 9, {
283 BIP_RANGE(5),
284 BIP_RANGE(2.5),
285 BIP_RANGE(1.25),
286 BIP_RANGE(0.625),
287 UNI_RANGE(10),
288 UNI_RANGE(5),
289 UNI_RANGE(2.5),
290 UNI_RANGE(1.25),
291 BIP_RANGE(10),
292 }
293};
294
295static const struct comedi_lrange range_acl8112hg_ai = { 12, {
296 BIP_RANGE(5),
297 BIP_RANGE(0.5),
298 BIP_RANGE(0.05),
299 BIP_RANGE(0.005),
300 UNI_RANGE(10),
301 UNI_RANGE(1),
302 UNI_RANGE(0.1),
303 UNI_RANGE(0.01),
304 BIP_RANGE(10),
305 BIP_RANGE(1),
306 BIP_RANGE(0.1),
307 BIP_RANGE(0.01),
308 }
309};
310
311static const struct comedi_lrange range_a821pgh_ai = { 4, {
312 BIP_RANGE(5),
313 BIP_RANGE(0.5),
314 BIP_RANGE(0.05),
315 BIP_RANGE(0.005),
316 }
317};
318
319static int pcl812_attach(struct comedi_device *dev,
320 struct comedi_devconfig *it);
321static int pcl812_detach(struct comedi_device *dev);
322
323struct pcl812_board {
324
325 const char *name;
326 int board_type;
327 int n_aichan;
328 int n_aichan_diff;
329 int n_aochan;
330 int n_dichan;
331 int n_dochan;
332 int ai_maxdata;
333 unsigned int ai_ns_min;
334 unsigned int i8254_osc_base;
335 const struct comedi_lrange *rangelist_ai;
336 const struct comedi_lrange *rangelist_ao;
337 unsigned int IRQbits;
338 unsigned char DMAbits;
339 unsigned char io_range;
340 unsigned char haveMPC508;
341};
342
343static const struct pcl812_board boardtypes[] = {
344 {"pcl812", boardPCL812, 16, 0, 2, 16, 16, 0x0fff,
345 33000, 500, &range_bipolar10, &range_unipolar5,
346 0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
347 {"pcl812pg", boardPCL812PG, 16, 0, 2, 16, 16, 0x0fff,
348 33000, 500, &range_pcl812pg_ai, &range_unipolar5,
349 0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
350 {"acl8112pg", boardPCL812PG, 16, 0, 2, 16, 16, 0x0fff,
351 10000, 500, &range_pcl812pg_ai, &range_unipolar5,
352 0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
353 {"acl8112dg", boardACL8112, 16, 8, 2, 16, 16, 0x0fff,
354 10000, 500, &range_acl8112dg_ai, &range_unipolar5,
355 0xdcfc, 0x0a, PCLx1x_IORANGE, 1},
356 {"acl8112hg", boardACL8112, 16, 8, 2, 16, 16, 0x0fff,
357 10000, 500, &range_acl8112hg_ai, &range_unipolar5,
358 0xdcfc, 0x0a, PCLx1x_IORANGE, 1},
359 {"a821pgl", boardA821, 16, 8, 1, 16, 16, 0x0fff,
360 10000, 500, &range_pcl813b_ai, &range_unipolar5,
361 0x000c, 0x00, PCLx1x_IORANGE, 0},
362 {"a821pglnda", boardA821, 16, 8, 0, 0, 0, 0x0fff,
363 10000, 500, &range_pcl813b_ai, NULL,
364 0x000c, 0x00, PCLx1x_IORANGE, 0},
365 {"a821pgh", boardA821, 16, 8, 1, 16, 16, 0x0fff,
366 10000, 500, &range_a821pgh_ai, &range_unipolar5,
367 0x000c, 0x00, PCLx1x_IORANGE, 0},
368 {"a822pgl", boardACL8112, 16, 8, 2, 16, 16, 0x0fff,
369 10000, 500, &range_acl8112dg_ai, &range_unipolar5,
370 0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
371 {"a822pgh", boardACL8112, 16, 8, 2, 16, 16, 0x0fff,
372 10000, 500, &range_acl8112hg_ai, &range_unipolar5,
373 0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
374 {"a823pgl", boardACL8112, 16, 8, 2, 16, 16, 0x0fff,
375 8000, 500, &range_acl8112dg_ai, &range_unipolar5,
376 0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
377 {"a823pgh", boardACL8112, 16, 8, 2, 16, 16, 0x0fff,
378 8000, 500, &range_acl8112hg_ai, &range_unipolar5,
379 0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
380 {"pcl813", boardPCL813, 32, 0, 0, 0, 0, 0x0fff,
381 0, 0, &range_pcl813b_ai, NULL,
382 0x0000, 0x00, PCLx1x_IORANGE, 0},
383 {"pcl813b", boardPCL813B, 32, 0, 0, 0, 0, 0x0fff,
384 0, 0, &range_pcl813b_ai, NULL,
385 0x0000, 0x00, PCLx1x_IORANGE, 0},
386 {"acl8113", boardACL8113, 32, 0, 0, 0, 0, 0x0fff,
387 0, 0, &range_acl8113_1_ai, NULL,
388 0x0000, 0x00, PCLx1x_IORANGE, 0},
389 {"iso813", boardISO813, 32, 0, 0, 0, 0, 0x0fff,
390 0, 0, &range_iso813_1_ai, NULL,
391 0x0000, 0x00, PCLx1x_IORANGE, 0},
392 {"acl8216", boardACL8216, 16, 8, 2, 16, 16, 0xffff,
393 10000, 500, &range_pcl813b2_ai, &range_unipolar5,
394 0xdcfc, 0x0a, PCLx1x_IORANGE, 1},
395 {"a826pg", boardACL8216, 16, 8, 2, 16, 16, 0xffff,
396 10000, 500, &range_pcl813b2_ai, &range_unipolar5,
397 0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
398};
399
400#define n_boardtypes (sizeof(boardtypes)/sizeof(struct pcl812_board))
401#define this_board ((const struct pcl812_board *)dev->board_ptr)
402
403static struct comedi_driver driver_pcl812 = {
404 .driver_name = "pcl812",
405 .module = THIS_MODULE,
406 .attach = pcl812_attach,
407 .detach = pcl812_detach,
408 .board_name = &boardtypes[0].name,
409 .num_names = n_boardtypes,
410 .offset = sizeof(struct pcl812_board),
411};
412
413static int __init driver_pcl812_init_module(void)
414{
415 return comedi_driver_register(&driver_pcl812);
416}
417
418static void __exit driver_pcl812_cleanup_module(void)
419{
420 comedi_driver_unregister(&driver_pcl812);
421}
422
423module_init(driver_pcl812_init_module);
424module_exit(driver_pcl812_cleanup_module);
425
426struct pcl812_private {
427
428 unsigned char valid;
429 unsigned char dma;
430 unsigned char use_diff;
431 unsigned char use_MPC;
432 unsigned char use_ext_trg;
433 unsigned char range_correction;
434 unsigned char old_chan_reg;
435 unsigned char old_gain_reg;
436 unsigned char mode_reg_int;
437 unsigned char ai_neverending;
438 unsigned char ai_eos;
439 unsigned char ai_dma;
440 unsigned int ai_poll_ptr;
441 unsigned int ai_scans;
442 unsigned int ai_act_scan;
443 unsigned int ai_chanlist[MAX_CHANLIST_LEN];
444 unsigned int ai_n_chan;
445 unsigned int ai_flags;
446 unsigned int ai_data_len;
447 short *ai_data;
448 unsigned int ai_is16b;
449 unsigned long dmabuf[2];
450 unsigned int dmapages[2];
451 unsigned int hwdmaptr[2];
452 unsigned int hwdmasize[2];
453 unsigned int dmabytestomove[2];
454 int next_dma_buf;
455 unsigned int dma_runs_to_end;
456 unsigned int last_dma_run;
457 unsigned int max_812_ai_mode0_rangewait;
458 unsigned int ao_readback[2];
459};
460
461#define devpriv ((struct pcl812_private *)dev->private)
462
463
464
465
466static void start_pacer(struct comedi_device *dev, int mode,
467 unsigned int divisor1, unsigned int divisor2);
468static void setup_range_channel(struct comedi_device *dev,
469 struct comedi_subdevice *s,
470 unsigned int rangechan, char wait);
471static int pcl812_ai_cancel(struct comedi_device *dev,
472 struct comedi_subdevice *s);
473
474
475
476static int pcl812_ai_insn_read(struct comedi_device *dev,
477 struct comedi_subdevice *s,
478 struct comedi_insn *insn, unsigned int *data)
479{
480 int n;
481 int timeout, hi;
482
483
484 outb(devpriv->mode_reg_int | 1, dev->iobase + PCL812_MODE);
485
486 setup_range_channel(dev, s, insn->chanspec, 1);
487 for (n = 0; n < insn->n; n++) {
488
489 outb(255, dev->iobase + PCL812_SOFTTRIG);
490 udelay(5);
491 timeout = 50;
492 while (timeout--) {
493 hi = inb(dev->iobase + PCL812_AD_HI);
494 if (!(hi & PCL812_DRDY))
495 goto conv_finish;
496 udelay(1);
497 }
498 printk
499 ("comedi%d: pcl812: (%s at 0x%lx) A/D insn read timeout\n",
500 dev->minor, dev->board_name, dev->iobase);
501 outb(devpriv->mode_reg_int | 0, dev->iobase + PCL812_MODE);
502 return -ETIME;
503
504conv_finish:
505 data[n] = ((hi & 0xf) << 8) | inb(dev->iobase + PCL812_AD_LO);
506 }
507 outb(devpriv->mode_reg_int | 0, dev->iobase + PCL812_MODE);
508 return n;
509}
510
511
512
513
514static int acl8216_ai_insn_read(struct comedi_device *dev,
515 struct comedi_subdevice *s,
516 struct comedi_insn *insn, unsigned int *data)
517{
518 int n;
519 int timeout;
520
521
522 outb(1, dev->iobase + PCL812_MODE);
523
524 setup_range_channel(dev, s, insn->chanspec, 1);
525 for (n = 0; n < insn->n; n++) {
526
527 outb(255, dev->iobase + PCL812_SOFTTRIG);
528 udelay(5);
529 timeout = 50;
530 while (timeout--) {
531 if (!(inb(dev->iobase + ACL8216_STATUS) & ACL8216_DRDY))
532 goto conv_finish;
533 udelay(1);
534 }
535 printk
536 ("comedi%d: pcl812: (%s at 0x%lx) A/D insn read timeout\n",
537 dev->minor, dev->board_name, dev->iobase);
538 outb(0, dev->iobase + PCL812_MODE);
539 return -ETIME;
540
541conv_finish:
542 data[n] =
543 (inb(dev->iobase +
544 PCL812_AD_HI) << 8) | inb(dev->iobase + PCL812_AD_LO);
545 }
546 outb(0, dev->iobase + PCL812_MODE);
547 return n;
548}
549
550
551
552
553static int pcl812_ao_insn_write(struct comedi_device *dev,
554 struct comedi_subdevice *s,
555 struct comedi_insn *insn, unsigned int *data)
556{
557 int chan = CR_CHAN(insn->chanspec);
558 int i;
559
560 for (i = 0; i < insn->n; i++) {
561 outb((data[i] & 0xff),
562 dev->iobase + (chan ? PCL812_DA2_LO : PCL812_DA1_LO));
563 outb((data[i] >> 8) & 0x0f,
564 dev->iobase + (chan ? PCL812_DA2_HI : PCL812_DA1_HI));
565 devpriv->ao_readback[chan] = data[i];
566 }
567
568 return i;
569}
570
571
572
573
574static int pcl812_ao_insn_read(struct comedi_device *dev,
575 struct comedi_subdevice *s,
576 struct comedi_insn *insn, unsigned int *data)
577{
578 int chan = CR_CHAN(insn->chanspec);
579 int i;
580
581 for (i = 0; i < insn->n; i++)
582 data[i] = devpriv->ao_readback[chan];
583
584 return i;
585}
586
587
588
589
590static int pcl812_di_insn_bits(struct comedi_device *dev,
591 struct comedi_subdevice *s,
592 struct comedi_insn *insn, unsigned int *data)
593{
594 if (insn->n != 2)
595 return -EINVAL;
596
597 data[1] = inb(dev->iobase + PCL812_DI_LO);
598 data[1] |= inb(dev->iobase + PCL812_DI_HI) << 8;
599
600 return 2;
601}
602
603
604
605
606static int pcl812_do_insn_bits(struct comedi_device *dev,
607 struct comedi_subdevice *s,
608 struct comedi_insn *insn, unsigned int *data)
609{
610 if (insn->n != 2)
611 return -EINVAL;
612
613 if (data[0]) {
614 s->state &= ~data[0];
615 s->state |= data[0] & data[1];
616 outb(s->state & 0xff, dev->iobase + PCL812_DO_LO);
617 outb((s->state >> 8), dev->iobase + PCL812_DO_HI);
618 }
619 data[1] = s->state;
620
621 return 2;
622}
623
624#ifdef PCL812_EXTDEBUG
625
626
627
628static void pcl812_cmdtest_out(int e, struct comedi_cmd *cmd)
629{
630 printk(KERN_INFO "pcl812 e=%d startsrc=%x scansrc=%x convsrc=%x\n", e,
631 cmd->start_src, cmd->scan_begin_src, cmd->convert_src);
632 printk(KERN_INFO "pcl812 e=%d startarg=%d scanarg=%d convarg=%d\n", e,
633 cmd->start_arg, cmd->scan_begin_arg, cmd->convert_arg);
634 printk(KERN_INFO "pcl812 e=%d stopsrc=%x scanend=%x\n", e,
635 cmd->stop_src, cmd->scan_end_src);
636 printk(KERN_INFO "pcl812 e=%d stoparg=%d scanendarg=%d "
637 "chanlistlen=%d\n", e, cmd->stop_arg, cmd->scan_end_arg,
638 cmd->chanlist_len);
639}
640#endif
641
642
643
644
645static int pcl812_ai_cmdtest(struct comedi_device *dev,
646 struct comedi_subdevice *s, struct comedi_cmd *cmd)
647{
648 int err = 0;
649 int tmp, divisor1, divisor2;
650
651#ifdef PCL812_EXTDEBUG
652 printk("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...)\n");
653 pcl812_cmdtest_out(-1, cmd);
654#endif
655
656
657 tmp = cmd->start_src;
658 cmd->start_src &= TRIG_NOW;
659 if (!cmd->start_src || tmp != cmd->start_src)
660 err++;
661
662 tmp = cmd->scan_begin_src;
663 cmd->scan_begin_src &= TRIG_FOLLOW;
664 if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
665 err++;
666
667 tmp = cmd->convert_src;
668 if (devpriv->use_ext_trg)
669 cmd->convert_src &= TRIG_EXT;
670 else
671 cmd->convert_src &= TRIG_TIMER;
672
673 if (!cmd->convert_src || tmp != cmd->convert_src)
674 err++;
675
676 tmp = cmd->scan_end_src;
677 cmd->scan_end_src &= TRIG_COUNT;
678 if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
679 err++;
680
681 tmp = cmd->stop_src;
682 cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
683 if (!cmd->stop_src || tmp != cmd->stop_src)
684 err++;
685
686 if (err) {
687#ifdef PCL812_EXTDEBUG
688 pcl812_cmdtest_out(1, cmd);
689 printk
690 ("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...) err=%d ret=1\n",
691 err);
692#endif
693 return 1;
694 }
695
696
697
698
699
700
701 if (cmd->start_src != TRIG_NOW) {
702 cmd->start_src = TRIG_NOW;
703 err++;
704 }
705
706 if (cmd->scan_begin_src != TRIG_FOLLOW) {
707 cmd->scan_begin_src = TRIG_FOLLOW;
708 err++;
709 }
710
711 if (devpriv->use_ext_trg) {
712 if (cmd->convert_src != TRIG_EXT) {
713 cmd->convert_src = TRIG_EXT;
714 err++;
715 }
716 } else {
717 if (cmd->convert_src != TRIG_TIMER) {
718 cmd->convert_src = TRIG_TIMER;
719 err++;
720 }
721 }
722
723 if (cmd->scan_end_src != TRIG_COUNT) {
724 cmd->scan_end_src = TRIG_COUNT;
725 err++;
726 }
727
728 if (cmd->stop_src != TRIG_NONE && cmd->stop_src != TRIG_COUNT)
729 err++;
730
731 if (err) {
732#ifdef PCL812_EXTDEBUG
733 pcl812_cmdtest_out(2, cmd);
734 printk
735 ("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...) err=%d ret=2\n",
736 err);
737#endif
738 return 2;
739 }
740
741
742
743 if (cmd->start_arg != 0) {
744 cmd->start_arg = 0;
745 err++;
746 }
747
748 if (cmd->scan_begin_arg != 0) {
749 cmd->scan_begin_arg = 0;
750 err++;
751 }
752
753 if (cmd->convert_src == TRIG_TIMER) {
754 if (cmd->convert_arg < this_board->ai_ns_min) {
755 cmd->convert_arg = this_board->ai_ns_min;
756 err++;
757 }
758 } else {
759 if (cmd->convert_arg != 0) {
760 cmd->convert_arg = 0;
761 err++;
762 }
763 }
764
765 if (!cmd->chanlist_len) {
766 cmd->chanlist_len = 1;
767 err++;
768 }
769 if (cmd->chanlist_len > MAX_CHANLIST_LEN) {
770 cmd->chanlist_len = this_board->n_aichan;
771 err++;
772 }
773 if (cmd->scan_end_arg != cmd->chanlist_len) {
774 cmd->scan_end_arg = cmd->chanlist_len;
775 err++;
776 }
777 if (cmd->stop_src == TRIG_COUNT) {
778 if (!cmd->stop_arg) {
779 cmd->stop_arg = 1;
780 err++;
781 }
782 } else {
783 if (cmd->stop_arg != 0) {
784 cmd->stop_arg = 0;
785 err++;
786 }
787 }
788
789 if (err) {
790#ifdef PCL812_EXTDEBUG
791 pcl812_cmdtest_out(3, cmd);
792 printk
793 ("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...) err=%d ret=3\n",
794 err);
795#endif
796 return 3;
797 }
798
799
800
801 if (cmd->convert_src == TRIG_TIMER) {
802 tmp = cmd->convert_arg;
803 i8253_cascade_ns_to_timer(this_board->i8254_osc_base, &divisor1,
804 &divisor2, &cmd->convert_arg,
805 cmd->flags & TRIG_ROUND_MASK);
806 if (cmd->convert_arg < this_board->ai_ns_min)
807 cmd->convert_arg = this_board->ai_ns_min;
808 if (tmp != cmd->convert_arg)
809 err++;
810 }
811
812 if (err) {
813#ifdef PCL812_EXTDEBUG
814 printk
815 ("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...) err=%d ret=4\n",
816 err);
817#endif
818 return 4;
819 }
820
821 return 0;
822}
823
824
825
826
827static int pcl812_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
828{
829 unsigned int divisor1 = 0, divisor2 = 0, i, dma_flags, bytes;
830 struct comedi_cmd *cmd = &s->async->cmd;
831
832#ifdef PCL812_EXTDEBUG
833 printk(KERN_DEBUG "pcl812 EDBG: BGN: pcl812_ai_cmd(...)\n");
834#endif
835
836 if (cmd->start_src != TRIG_NOW)
837 return -EINVAL;
838 if (cmd->scan_begin_src != TRIG_FOLLOW)
839 return -EINVAL;
840 if (devpriv->use_ext_trg) {
841 if (cmd->convert_src != TRIG_EXT)
842 return -EINVAL;
843 } else {
844 if (cmd->convert_src != TRIG_TIMER)
845 return -EINVAL;
846 }
847 if (cmd->scan_end_src != TRIG_COUNT)
848 return -EINVAL;
849 if (cmd->scan_end_arg != cmd->chanlist_len)
850 return -EINVAL;
851 if (cmd->chanlist_len > MAX_CHANLIST_LEN)
852 return -EINVAL;
853
854 if (cmd->convert_src == TRIG_TIMER) {
855 if (cmd->convert_arg < this_board->ai_ns_min)
856 cmd->convert_arg = this_board->ai_ns_min;
857 i8253_cascade_ns_to_timer(this_board->i8254_osc_base,
858 &divisor1, &divisor2,
859 &cmd->convert_arg,
860 cmd->flags & TRIG_ROUND_MASK);
861 }
862
863 start_pacer(dev, -1, 0, 0);
864
865 devpriv->ai_n_chan = cmd->chanlist_len;
866 memcpy(devpriv->ai_chanlist, cmd->chanlist,
867 sizeof(unsigned int) * cmd->scan_end_arg);
868
869 setup_range_channel(dev, s, devpriv->ai_chanlist[0], 1);
870
871 if (devpriv->dma) {
872 devpriv->ai_dma = 1;
873 for (i = 1; i < devpriv->ai_n_chan; i++)
874 if (devpriv->ai_chanlist[0] != devpriv->ai_chanlist[i]) {
875
876 devpriv->ai_dma = 0;
877 break;
878 }
879 } else
880 devpriv->ai_dma = 0;
881
882 devpriv->ai_flags = cmd->flags;
883 devpriv->ai_data_len = s->async->prealloc_bufsz;
884 devpriv->ai_data = s->async->prealloc_buf;
885 if (cmd->stop_src == TRIG_COUNT) {
886 devpriv->ai_scans = cmd->stop_arg;
887 devpriv->ai_neverending = 0;
888 } else {
889 devpriv->ai_scans = 0;
890 devpriv->ai_neverending = 1;
891 }
892
893 devpriv->ai_act_scan = 0;
894 devpriv->ai_poll_ptr = 0;
895 s->async->cur_chan = 0;
896
897
898 if ((devpriv->ai_flags & TRIG_WAKE_EOS)) {
899 devpriv->ai_eos = 1;
900
901
902 if (devpriv->ai_n_chan == 1)
903 devpriv->ai_dma = 0;
904 }
905
906 if (devpriv->ai_dma) {
907
908 if (devpriv->ai_eos) {
909 devpriv->dmabytestomove[0] =
910 devpriv->ai_n_chan * sizeof(short);
911 devpriv->dmabytestomove[1] =
912 devpriv->ai_n_chan * sizeof(short);
913 devpriv->dma_runs_to_end = 1;
914 } else {
915 devpriv->dmabytestomove[0] = devpriv->hwdmasize[0];
916 devpriv->dmabytestomove[1] = devpriv->hwdmasize[1];
917 if (devpriv->ai_data_len < devpriv->hwdmasize[0])
918 devpriv->dmabytestomove[0] =
919 devpriv->ai_data_len;
920 if (devpriv->ai_data_len < devpriv->hwdmasize[1])
921 devpriv->dmabytestomove[1] =
922 devpriv->ai_data_len;
923 if (devpriv->ai_neverending) {
924 devpriv->dma_runs_to_end = 1;
925 } else {
926
927 bytes = devpriv->ai_n_chan *
928 devpriv->ai_scans * sizeof(short);
929
930
931 devpriv->dma_runs_to_end =
932 bytes / devpriv->dmabytestomove[0];
933
934
935 devpriv->last_dma_run =
936 bytes % devpriv->dmabytestomove[0];
937 if (devpriv->dma_runs_to_end == 0)
938 devpriv->dmabytestomove[0] =
939 devpriv->last_dma_run;
940 devpriv->dma_runs_to_end--;
941 }
942 }
943 if (devpriv->dmabytestomove[0] > devpriv->hwdmasize[0]) {
944 devpriv->dmabytestomove[0] = devpriv->hwdmasize[0];
945 devpriv->ai_eos = 0;
946 }
947 if (devpriv->dmabytestomove[1] > devpriv->hwdmasize[1]) {
948 devpriv->dmabytestomove[1] = devpriv->hwdmasize[1];
949 devpriv->ai_eos = 0;
950 }
951 devpriv->next_dma_buf = 0;
952 set_dma_mode(devpriv->dma, DMA_MODE_READ);
953 dma_flags = claim_dma_lock();
954 clear_dma_ff(devpriv->dma);
955 set_dma_addr(devpriv->dma, devpriv->hwdmaptr[0]);
956 set_dma_count(devpriv->dma, devpriv->dmabytestomove[0]);
957 release_dma_lock(dma_flags);
958 enable_dma(devpriv->dma);
959#ifdef PCL812_EXTDEBUG
960 printk
961 ("pcl812 EDBG: DMA %d PTR 0x%0x/0x%0x LEN %u/%u EOS %d\n",
962 devpriv->dma, devpriv->hwdmaptr[0],
963 devpriv->hwdmaptr[1], devpriv->dmabytestomove[0],
964 devpriv->dmabytestomove[1], devpriv->ai_eos);
965#endif
966 }
967
968 switch (cmd->convert_src) {
969 case TRIG_TIMER:
970 start_pacer(dev, 1, divisor1, divisor2);
971 break;
972 }
973
974 if (devpriv->ai_dma)
975 outb(devpriv->mode_reg_int | 2, dev->iobase + PCL812_MODE);
976 else
977 outb(devpriv->mode_reg_int | 6, dev->iobase + PCL812_MODE);
978
979#ifdef PCL812_EXTDEBUG
980 printk(KERN_DEBUG "pcl812 EDBG: END: pcl812_ai_cmd(...)\n");
981#endif
982
983 return 0;
984}
985
986
987
988
989static irqreturn_t interrupt_pcl812_ai_int(int irq, void *d)
990{
991 char err = 1;
992 unsigned int mask, timeout;
993 struct comedi_device *dev = d;
994 struct comedi_subdevice *s = dev->subdevices + 0;
995 unsigned int next_chan;
996
997 s->async->events = 0;
998
999 timeout = 50;
1000 if (devpriv->ai_is16b) {
1001 mask = 0xffff;
1002 while (timeout--) {
1003 if (!(inb(dev->iobase + ACL8216_STATUS) & ACL8216_DRDY)) {
1004 err = 0;
1005 break;
1006 }
1007 udelay(1);
1008 }
1009 } else {
1010 mask = 0x0fff;
1011 while (timeout--) {
1012 if (!(inb(dev->iobase + PCL812_AD_HI) & PCL812_DRDY)) {
1013 err = 0;
1014 break;
1015 }
1016 udelay(1);
1017 }
1018 }
1019
1020 if (err) {
1021 printk
1022 ("comedi%d: pcl812: (%s at 0x%lx) "
1023 "A/D cmd IRQ without DRDY!\n",
1024 dev->minor, dev->board_name, dev->iobase);
1025 pcl812_ai_cancel(dev, s);
1026 s->async->events |= COMEDI_CB_EOA | COMEDI_CB_ERROR;
1027 comedi_event(dev, s);
1028 return IRQ_HANDLED;
1029 }
1030
1031 comedi_buf_put(s->async,
1032 ((inb(dev->iobase + PCL812_AD_HI) << 8) |
1033 inb(dev->iobase + PCL812_AD_LO)) & mask);
1034
1035
1036 next_chan = s->async->cur_chan + 1;
1037 if (next_chan >= devpriv->ai_n_chan)
1038 next_chan = 0;
1039 if (devpriv->ai_chanlist[s->async->cur_chan] !=
1040 devpriv->ai_chanlist[next_chan])
1041 setup_range_channel(dev, s, devpriv->ai_chanlist[next_chan], 0);
1042
1043 outb(0, dev->iobase + PCL812_CLRINT);
1044
1045 s->async->cur_chan = next_chan;
1046 if (next_chan == 0) {
1047 devpriv->ai_act_scan++;
1048 if (!(devpriv->ai_neverending))
1049
1050 if (devpriv->ai_act_scan >= devpriv->ai_scans) {
1051 pcl812_ai_cancel(dev, s);
1052 s->async->events |= COMEDI_CB_EOA;
1053 }
1054 }
1055
1056 comedi_event(dev, s);
1057 return IRQ_HANDLED;
1058}
1059
1060
1061
1062
1063static void transfer_from_dma_buf(struct comedi_device *dev,
1064 struct comedi_subdevice *s, short *ptr,
1065 unsigned int bufptr, unsigned int len)
1066{
1067 unsigned int i;
1068
1069 s->async->events = 0;
1070 for (i = len; i; i--) {
1071
1072 comedi_buf_put(s->async, ptr[bufptr++]);
1073
1074 s->async->cur_chan++;
1075 if (s->async->cur_chan >= devpriv->ai_n_chan) {
1076 s->async->cur_chan = 0;
1077 devpriv->ai_act_scan++;
1078 if (!devpriv->ai_neverending)
1079
1080 if (devpriv->ai_act_scan >= devpriv->ai_scans) {
1081 pcl812_ai_cancel(dev, s);
1082 s->async->events |= COMEDI_CB_EOA;
1083 break;
1084 }
1085 }
1086 }
1087
1088 comedi_event(dev, s);
1089}
1090
1091
1092
1093
1094static irqreturn_t interrupt_pcl812_ai_dma(int irq, void *d)
1095{
1096 struct comedi_device *dev = d;
1097 struct comedi_subdevice *s = dev->subdevices + 0;
1098 unsigned long dma_flags;
1099 int len, bufptr;
1100 short *ptr;
1101
1102#ifdef PCL812_EXTDEBUG
1103 printk(KERN_DEBUG "pcl812 EDBG: BGN: interrupt_pcl812_ai_dma(...)\n");
1104#endif
1105 ptr = (short *)devpriv->dmabuf[devpriv->next_dma_buf];
1106 len = (devpriv->dmabytestomove[devpriv->next_dma_buf] >> 1) -
1107 devpriv->ai_poll_ptr;
1108
1109 devpriv->next_dma_buf = 1 - devpriv->next_dma_buf;
1110 disable_dma(devpriv->dma);
1111 set_dma_mode(devpriv->dma, DMA_MODE_READ);
1112 dma_flags = claim_dma_lock();
1113 set_dma_addr(devpriv->dma, devpriv->hwdmaptr[devpriv->next_dma_buf]);
1114 if (devpriv->ai_eos) {
1115 set_dma_count(devpriv->dma,
1116 devpriv->dmabytestomove[devpriv->next_dma_buf]);
1117 } else {
1118 if (devpriv->dma_runs_to_end) {
1119 set_dma_count(devpriv->dma,
1120 devpriv->dmabytestomove[devpriv->
1121 next_dma_buf]);
1122 } else {
1123 set_dma_count(devpriv->dma, devpriv->last_dma_run);
1124 }
1125 devpriv->dma_runs_to_end--;
1126 }
1127 release_dma_lock(dma_flags);
1128 enable_dma(devpriv->dma);
1129
1130 outb(0, dev->iobase + PCL812_CLRINT);
1131
1132 bufptr = devpriv->ai_poll_ptr;
1133 devpriv->ai_poll_ptr = 0;
1134
1135 transfer_from_dma_buf(dev, s, ptr, bufptr, len);
1136
1137#ifdef PCL812_EXTDEBUG
1138 printk(KERN_DEBUG "pcl812 EDBG: END: interrupt_pcl812_ai_dma(...)\n");
1139#endif
1140 return IRQ_HANDLED;
1141}
1142
1143
1144
1145
1146static irqreturn_t interrupt_pcl812(int irq, void *d)
1147{
1148 struct comedi_device *dev = d;
1149
1150 if (!dev->attached) {
1151 comedi_error(dev, "spurious interrupt");
1152 return IRQ_HANDLED;
1153 }
1154 if (devpriv->ai_dma)
1155 return interrupt_pcl812_ai_dma(irq, d);
1156 else
1157 return interrupt_pcl812_ai_int(irq, d);
1158}
1159
1160
1161
1162
1163static int pcl812_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
1164{
1165 unsigned long flags;
1166 unsigned int top1, top2, i;
1167
1168 if (!devpriv->ai_dma)
1169 return 0;
1170
1171 spin_lock_irqsave(&dev->spinlock, flags);
1172
1173 for (i = 0; i < 10; i++) {
1174
1175 top1 = get_dma_residue(devpriv->ai_dma);
1176 top2 = get_dma_residue(devpriv->ai_dma);
1177 if (top1 == top2)
1178 break;
1179 }
1180
1181 if (top1 != top2) {
1182 spin_unlock_irqrestore(&dev->spinlock, flags);
1183 return 0;
1184 }
1185
1186 top1 = devpriv->dmabytestomove[1 - devpriv->next_dma_buf] - top1;
1187 top1 >>= 1;
1188 top2 = top1 - devpriv->ai_poll_ptr;
1189 if (top2 < 1) {
1190 spin_unlock_irqrestore(&dev->spinlock, flags);
1191 return 0;
1192 }
1193
1194 transfer_from_dma_buf(dev, s,
1195 (void *)devpriv->dmabuf[1 -
1196 devpriv->next_dma_buf],
1197 devpriv->ai_poll_ptr, top2);
1198
1199 devpriv->ai_poll_ptr = top1;
1200
1201 spin_unlock_irqrestore(&dev->spinlock, flags);
1202
1203 return s->async->buf_write_count - s->async->buf_read_count;
1204}
1205
1206
1207
1208
1209static void setup_range_channel(struct comedi_device *dev,
1210 struct comedi_subdevice *s,
1211 unsigned int rangechan, char wait)
1212{
1213 unsigned char chan_reg = CR_CHAN(rangechan);
1214
1215 unsigned char gain_reg = CR_RANGE(rangechan) +
1216 devpriv->range_correction;
1217
1218 if ((chan_reg == devpriv->old_chan_reg)
1219 && (gain_reg == devpriv->old_gain_reg))
1220 return;
1221
1222 devpriv->old_chan_reg = chan_reg;
1223 devpriv->old_gain_reg = gain_reg;
1224
1225 if (devpriv->use_MPC) {
1226 if (devpriv->use_diff) {
1227 chan_reg = chan_reg | 0x30;
1228 } else {
1229 if (chan_reg & 0x80)
1230
1231 chan_reg = chan_reg | 0x20;
1232 else
1233
1234 chan_reg = chan_reg | 0x10;
1235 }
1236 }
1237
1238 outb(chan_reg, dev->iobase + PCL812_MUX);
1239 outb(gain_reg, dev->iobase + PCL812_GAIN);
1240
1241
1242 if (wait)
1243
1244
1245
1246
1247 udelay(devpriv->max_812_ai_mode0_rangewait);
1248}
1249
1250
1251
1252
1253static void start_pacer(struct comedi_device *dev, int mode,
1254 unsigned int divisor1, unsigned int divisor2)
1255{
1256#ifdef PCL812_EXTDEBUG
1257 printk(KERN_DEBUG "pcl812 EDBG: BGN: start_pacer(%d,%u,%u)\n", mode,
1258 divisor1, divisor2);
1259#endif
1260 outb(0xb4, dev->iobase + PCL812_CTRCTL);
1261 outb(0x74, dev->iobase + PCL812_CTRCTL);
1262 udelay(1);
1263
1264 if (mode == 1) {
1265 outb(divisor2 & 0xff, dev->iobase + PCL812_CTR2);
1266 outb((divisor2 >> 8) & 0xff, dev->iobase + PCL812_CTR2);
1267 outb(divisor1 & 0xff, dev->iobase + PCL812_CTR1);
1268 outb((divisor1 >> 8) & 0xff, dev->iobase + PCL812_CTR1);
1269 }
1270#ifdef PCL812_EXTDEBUG
1271 printk(KERN_DEBUG "pcl812 EDBG: END: start_pacer(...)\n");
1272#endif
1273}
1274
1275
1276
1277
1278static void free_resources(struct comedi_device *dev)
1279{
1280
1281 if (dev->private) {
1282 if (devpriv->dmabuf[0])
1283 free_pages(devpriv->dmabuf[0], devpriv->dmapages[0]);
1284 if (devpriv->dmabuf[1])
1285 free_pages(devpriv->dmabuf[1], devpriv->dmapages[1]);
1286 if (devpriv->dma)
1287 free_dma(devpriv->dma);
1288 }
1289 if (dev->irq)
1290 free_irq(dev->irq, dev);
1291 if (dev->iobase)
1292 release_region(dev->iobase, this_board->io_range);
1293}
1294
1295
1296
1297
1298static int pcl812_ai_cancel(struct comedi_device *dev,
1299 struct comedi_subdevice *s)
1300{
1301#ifdef PCL812_EXTDEBUG
1302 printk(KERN_DEBUG "pcl812 EDBG: BGN: pcl812_ai_cancel(...)\n");
1303#endif
1304 if (devpriv->ai_dma)
1305 disable_dma(devpriv->dma);
1306 outb(0, dev->iobase + PCL812_CLRINT);
1307
1308 outb(devpriv->mode_reg_int | 0, dev->iobase + PCL812_MODE);
1309 start_pacer(dev, -1, 0, 0);
1310 outb(0, dev->iobase + PCL812_CLRINT);
1311#ifdef PCL812_EXTDEBUG
1312 printk(KERN_DEBUG "pcl812 EDBG: END: pcl812_ai_cancel(...)\n");
1313#endif
1314 return 0;
1315}
1316
1317
1318
1319
1320static void pcl812_reset(struct comedi_device *dev)
1321{
1322#ifdef PCL812_EXTDEBUG
1323 printk(KERN_DEBUG "pcl812 EDBG: BGN: pcl812_reset(...)\n");
1324#endif
1325 outb(0, dev->iobase + PCL812_MUX);
1326 outb(0 + devpriv->range_correction, dev->iobase + PCL812_GAIN);
1327 devpriv->old_chan_reg = -1;
1328 devpriv->old_gain_reg = -1;
1329
1330 switch (this_board->board_type) {
1331 case boardPCL812PG:
1332 case boardPCL812:
1333 case boardACL8112:
1334 case boardACL8216:
1335 outb(0, dev->iobase + PCL812_DA2_LO);
1336 outb(0, dev->iobase + PCL812_DA2_HI);
1337 case boardA821:
1338 outb(0, dev->iobase + PCL812_DA1_LO);
1339 outb(0, dev->iobase + PCL812_DA1_HI);
1340 start_pacer(dev, -1, 0, 0);
1341 outb(0, dev->iobase + PCL812_DO_HI);
1342 outb(0, dev->iobase + PCL812_DO_LO);
1343 outb(devpriv->mode_reg_int | 0, dev->iobase + PCL812_MODE);
1344 outb(0, dev->iobase + PCL812_CLRINT);
1345 break;
1346 case boardPCL813B:
1347 case boardPCL813:
1348 case boardISO813:
1349 case boardACL8113:
1350 udelay(5);
1351 break;
1352 }
1353 udelay(5);
1354#ifdef PCL812_EXTDEBUG
1355 printk(KERN_DEBUG "pcl812 EDBG: END: pcl812_reset(...)\n");
1356#endif
1357}
1358
1359
1360
1361
1362static int pcl812_attach(struct comedi_device *dev, struct comedi_devconfig *it)
1363{
1364 int ret, subdev;
1365 unsigned long iobase;
1366 unsigned int irq;
1367 unsigned int dma;
1368 unsigned long pages;
1369 struct comedi_subdevice *s;
1370 int n_subdevices;
1371
1372 iobase = it->options[0];
1373 printk(KERN_INFO "comedi%d: pcl812: board=%s, ioport=0x%03lx",
1374 dev->minor, this_board->name, iobase);
1375
1376 if (!request_region(iobase, this_board->io_range, "pcl812")) {
1377 printk("I/O port conflict\n");
1378 return -EIO;
1379 }
1380 dev->iobase = iobase;
1381
1382 ret = alloc_private(dev, sizeof(struct pcl812_private));
1383 if (ret < 0) {
1384 free_resources(dev);
1385 return ret;
1386 }
1387
1388 dev->board_name = this_board->name;
1389
1390 irq = 0;
1391 if (this_board->IRQbits != 0) {
1392 irq = it->options[1];
1393 if (irq) {
1394 if (((1 << irq) & this_board->IRQbits) == 0) {
1395 printk
1396 (", IRQ %u is out of allowed range, "
1397 "DISABLING IT", irq);
1398 irq = 0;
1399 } else {
1400 if (request_irq
1401 (irq, interrupt_pcl812, 0, "pcl812", dev)) {
1402 printk
1403 (", unable to allocate IRQ %u, "
1404 "DISABLING IT", irq);
1405 irq = 0;
1406 } else {
1407 printk(KERN_INFO ", irq=%u", irq);
1408 }
1409 }
1410 }
1411 }
1412
1413 dev->irq = irq;
1414
1415 dma = 0;
1416 devpriv->dma = dma;
1417 if (!dev->irq)
1418 goto no_dma;
1419 if (this_board->DMAbits != 0) {
1420 dma = it->options[2];
1421 if (((1 << dma) & this_board->DMAbits) == 0) {
1422 printk(", DMA is out of allowed range, FAIL!\n");
1423 return -EINVAL;
1424 }
1425 ret = request_dma(dma, "pcl812");
1426 if (ret) {
1427 printk(KERN_ERR ", unable to allocate DMA %u, FAIL!\n",
1428 dma);
1429 return -EBUSY;
1430 }
1431 devpriv->dma = dma;
1432 printk(KERN_INFO ", dma=%u", dma);
1433 pages = 1;
1434 devpriv->dmabuf[0] = __get_dma_pages(GFP_KERNEL, pages);
1435 if (!devpriv->dmabuf[0]) {
1436 printk(", unable to allocate DMA buffer, FAIL!\n");
1437
1438
1439
1440
1441 free_resources(dev);
1442 return -EBUSY;
1443 }
1444 devpriv->dmapages[0] = pages;
1445 devpriv->hwdmaptr[0] = virt_to_bus((void *)devpriv->dmabuf[0]);
1446 devpriv->hwdmasize[0] = PAGE_SIZE * (1 << pages);
1447 devpriv->dmabuf[1] = __get_dma_pages(GFP_KERNEL, pages);
1448 if (!devpriv->dmabuf[1]) {
1449 printk(KERN_ERR ", unable to allocate DMA buffer, FAIL!\n");
1450 free_resources(dev);
1451 return -EBUSY;
1452 }
1453 devpriv->dmapages[1] = pages;
1454 devpriv->hwdmaptr[1] = virt_to_bus((void *)devpriv->dmabuf[1]);
1455 devpriv->hwdmasize[1] = PAGE_SIZE * (1 << pages);
1456 }
1457no_dma:
1458
1459 n_subdevices = 0;
1460 if (this_board->n_aichan > 0)
1461 n_subdevices++;
1462 if (this_board->n_aochan > 0)
1463 n_subdevices++;
1464 if (this_board->n_dichan > 0)
1465 n_subdevices++;
1466 if (this_board->n_dochan > 0)
1467 n_subdevices++;
1468
1469 ret = alloc_subdevices(dev, n_subdevices);
1470 if (ret < 0) {
1471 free_resources(dev);
1472 return ret;
1473 }
1474
1475 subdev = 0;
1476
1477
1478 if (this_board->n_aichan > 0) {
1479 s = dev->subdevices + subdev;
1480 s->type = COMEDI_SUBD_AI;
1481 s->subdev_flags = SDF_READABLE;
1482 switch (this_board->board_type) {
1483 case boardA821:
1484 if (it->options[2] == 1) {
1485 s->n_chan = this_board->n_aichan_diff;
1486 s->subdev_flags |= SDF_DIFF;
1487 devpriv->use_diff = 1;
1488 } else {
1489 s->n_chan = this_board->n_aichan;
1490 s->subdev_flags |= SDF_GROUND;
1491 }
1492 break;
1493 case boardACL8112:
1494 case boardACL8216:
1495 if (it->options[4] == 1) {
1496 s->n_chan = this_board->n_aichan_diff;
1497 s->subdev_flags |= SDF_DIFF;
1498 devpriv->use_diff = 1;
1499 } else {
1500 s->n_chan = this_board->n_aichan;
1501 s->subdev_flags |= SDF_GROUND;
1502 }
1503 break;
1504 default:
1505 s->n_chan = this_board->n_aichan;
1506 s->subdev_flags |= SDF_GROUND;
1507 break;
1508 }
1509 s->maxdata = this_board->ai_maxdata;
1510 s->len_chanlist = MAX_CHANLIST_LEN;
1511 s->range_table = this_board->rangelist_ai;
1512 if (this_board->board_type == boardACL8216)
1513 s->insn_read = acl8216_ai_insn_read;
1514 else
1515 s->insn_read = pcl812_ai_insn_read;
1516
1517 devpriv->use_MPC = this_board->haveMPC508;
1518 s->cancel = pcl812_ai_cancel;
1519 if (dev->irq) {
1520 dev->read_subdev = s;
1521 s->subdev_flags |= SDF_CMD_READ;
1522 s->do_cmdtest = pcl812_ai_cmdtest;
1523 s->do_cmd = pcl812_ai_cmd;
1524 s->poll = pcl812_ai_poll;
1525 }
1526 switch (this_board->board_type) {
1527 case boardPCL812PG:
1528 if (it->options[4] == 1)
1529 s->range_table = &range_pcl812pg2_ai;
1530 break;
1531 case boardPCL812:
1532 switch (it->options[4]) {
1533 case 0:
1534 s->range_table = &range_bipolar10;
1535 break;
1536 case 1:
1537 s->range_table = &range_bipolar5;
1538 break;
1539 case 2:
1540 s->range_table = &range_bipolar2_5;
1541 break;
1542 case 3:
1543 s->range_table = &range812_bipolar1_25;
1544 break;
1545 case 4:
1546 s->range_table = &range812_bipolar0_625;
1547 break;
1548 case 5:
1549 s->range_table = &range812_bipolar0_3125;
1550 break;
1551 default:
1552 s->range_table = &range_bipolar10;
1553 break;
1554 printk
1555 (", incorrect range number %d, changing "
1556 "to 0 (+/-10V)", it->options[4]);
1557 break;
1558 }
1559 break;
1560 break;
1561 case boardPCL813B:
1562 if (it->options[1] == 1)
1563 s->range_table = &range_pcl813b2_ai;
1564 break;
1565 case boardISO813:
1566 switch (it->options[1]) {
1567 case 0:
1568 s->range_table = &range_iso813_1_ai;
1569 break;
1570 case 1:
1571 s->range_table = &range_iso813_1_2_ai;
1572 break;
1573 case 2:
1574 s->range_table = &range_iso813_2_ai;
1575 devpriv->range_correction = 1;
1576 break;
1577 case 3:
1578 s->range_table = &range_iso813_2_2_ai;
1579 devpriv->range_correction = 1;
1580 break;
1581 default:
1582 s->range_table = &range_iso813_1_ai;
1583 break;
1584 printk
1585 (", incorrect range number %d, "
1586 "changing to 0 ", it->options[1]);
1587 break;
1588 }
1589 break;
1590 case boardACL8113:
1591 switch (it->options[1]) {
1592 case 0:
1593 s->range_table = &range_acl8113_1_ai;
1594 break;
1595 case 1:
1596 s->range_table = &range_acl8113_1_2_ai;
1597 break;
1598 case 2:
1599 s->range_table = &range_acl8113_2_ai;
1600 devpriv->range_correction = 1;
1601 break;
1602 case 3:
1603 s->range_table = &range_acl8113_2_2_ai;
1604 devpriv->range_correction = 1;
1605 break;
1606 default:
1607 s->range_table = &range_acl8113_1_ai;
1608 break;
1609 printk
1610 (", incorrect range number %d, "
1611 "changing to 0 ", it->options[1]);
1612 break;
1613 }
1614 break;
1615 }
1616 subdev++;
1617 }
1618
1619
1620 if (this_board->n_aochan > 0) {
1621 s = dev->subdevices + subdev;
1622 s->type = COMEDI_SUBD_AO;
1623 s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
1624 s->n_chan = this_board->n_aochan;
1625 s->maxdata = 0xfff;
1626 s->len_chanlist = 1;
1627 s->range_table = this_board->rangelist_ao;
1628 s->insn_read = pcl812_ao_insn_read;
1629 s->insn_write = pcl812_ao_insn_write;
1630 switch (this_board->board_type) {
1631 case boardA821:
1632 if (it->options[3] == 1)
1633 s->range_table = &range_unipolar10;
1634 break;
1635 case boardPCL812:
1636 case boardACL8112:
1637 case boardPCL812PG:
1638 case boardACL8216:
1639 if (it->options[5] == 1)
1640 s->range_table = &range_unipolar10;
1641 if (it->options[5] == 2)
1642 s->range_table = &range_unknown;
1643 break;
1644 }
1645 subdev++;
1646 }
1647
1648
1649 if (this_board->n_dichan > 0) {
1650 s = dev->subdevices + subdev;
1651 s->type = COMEDI_SUBD_DI;
1652 s->subdev_flags = SDF_READABLE;
1653 s->n_chan = this_board->n_dichan;
1654 s->maxdata = 1;
1655 s->len_chanlist = this_board->n_dichan;
1656 s->range_table = &range_digital;
1657 s->insn_bits = pcl812_di_insn_bits;
1658 subdev++;
1659 }
1660
1661
1662 if (this_board->n_dochan > 0) {
1663 s = dev->subdevices + subdev;
1664 s->type = COMEDI_SUBD_DO;
1665 s->subdev_flags = SDF_WRITABLE;
1666 s->n_chan = this_board->n_dochan;
1667 s->maxdata = 1;
1668 s->len_chanlist = this_board->n_dochan;
1669 s->range_table = &range_digital;
1670 s->insn_bits = pcl812_do_insn_bits;
1671 subdev++;
1672 }
1673
1674 switch (this_board->board_type) {
1675 case boardACL8216:
1676 devpriv->ai_is16b = 1;
1677 case boardPCL812PG:
1678 case boardPCL812:
1679 case boardACL8112:
1680 devpriv->max_812_ai_mode0_rangewait = 1;
1681 if (it->options[3] > 0)
1682
1683 devpriv->use_ext_trg = 1;
1684 case boardA821:
1685 devpriv->max_812_ai_mode0_rangewait = 1;
1686 devpriv->mode_reg_int = (irq << 4) & 0xf0;
1687 break;
1688 case boardPCL813B:
1689 case boardPCL813:
1690 case boardISO813:
1691 case boardACL8113:
1692
1693 devpriv->max_812_ai_mode0_rangewait = 5;
1694 break;
1695 }
1696
1697 printk(KERN_INFO "\n");
1698 devpriv->valid = 1;
1699
1700 pcl812_reset(dev);
1701
1702 return 0;
1703}
1704
1705
1706
1707
1708static int pcl812_detach(struct comedi_device *dev)
1709{
1710
1711#ifdef PCL812_EXTDEBUG
1712 printk(KERN_DEBUG "comedi%d: pcl812: remove\n", dev->minor);
1713#endif
1714 free_resources(dev);
1715 return 0;
1716}
1717
1718MODULE_AUTHOR("Comedi http://www.comedi.org");
1719MODULE_DESCRIPTION("Comedi low-level driver");
1720MODULE_LICENSE("GPL");
1721
