2 * comedi/drivers/pcl812.c
4 * Author: Michal Dobes <dobes@tesnet.cz>
6 * hardware driver for Advantech cards
7 * card: PCL-812, PCL-812PG, PCL-813, PCL-813B
8 * driver: pcl812, pcl812pg, pcl813, pcl813b
10 * card: ACL-8112DG, ACL-8112HG, ACL-8112PG, ACL-8113, ACL-8216
11 * driver: acl8112dg, acl8112hg, acl8112pg, acl8113, acl8216
12 * and for ICP DAS cards
13 * card: ISO-813, A-821PGH, A-821PGL, A-821PGL-NDA, A-822PGH, A-822PGL,
14 * driver: iso813, a821pgh, a-821pgl, a-821pglnda, a822pgh, a822pgl,
15 * card: A-823PGH, A-823PGL, A-826PG
16 * driver: a823pgh, a823pgl, a826pg
21 * Description: Advantech PCL-812/PG, PCL-813/B,
22 * ADLink ACL-8112DG/HG/PG, ACL-8113, ACL-8216,
23 * ICP DAS A-821PGH/PGL/PGL-NDA, A-822PGH/PGL, A-823PGH/PGL, A-826PG,
25 * Author: Michal Dobes <dobes@tesnet.cz>
26 * Devices: [Advantech] PCL-812 (pcl812), PCL-812PG (pcl812pg),
27 * PCL-813 (pcl813), PCL-813B (pcl813b), [ADLink] ACL-8112DG (acl8112dg),
28 * ACL-8112HG (acl8112hg), ACL-8113 (acl-8113), ACL-8216 (acl8216),
29 * [ICP] ISO-813 (iso813), A-821PGH (a821pgh), A-821PGL (a821pgl),
30 * A-821PGL-NDA (a821pclnda), A-822PGH (a822pgh), A-822PGL (a822pgl),
31 * A-823PGH (a823pgh), A-823PGL (a823pgl), A-826PG (a826pg)
32 * Updated: Mon, 06 Aug 2007 12:03:15 +0100
33 * Status: works (I hope. My board fire up under my hands
34 * and I cann't test all features.)
36 * This driver supports insn and cmd interfaces. Some boards support only insn
37 * because their hardware don't allow more (PCL-813/B, ACL-8113, ISO-813).
38 * Data transfer over DMA is supported only when you measure only one
39 * channel, this is too hardware limitation of these boards.
41 * Options for PCL-812:
43 * [1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7; 10, 11, 12, 14, 15)
44 * [2] - DMA (0=disable, 1, 3)
45 * [3] - 0=trigger source is internal 8253 with 2MHz clock
46 * 1=trigger source is external
47 * [4] - 0=A/D input range is +/-10V
48 * 1=A/D input range is +/-5V
49 * 2=A/D input range is +/-2.5V
50 * 3=A/D input range is +/-1.25V
51 * 4=A/D input range is +/-0.625V
52 * 5=A/D input range is +/-0.3125V
53 * [5] - 0=D/A outputs 0-5V (internal reference -5V)
54 * 1=D/A outputs 0-10V (internal reference -10V)
55 * 2=D/A outputs unknown (external reference)
57 * Options for PCL-812PG, ACL-8112PG:
59 * [1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7; 10, 11, 12, 14, 15)
60 * [2] - DMA (0=disable, 1, 3)
61 * [3] - 0=trigger source is internal 8253 with 2MHz clock
62 * 1=trigger source is external
63 * [4] - 0=A/D have max +/-5V input
64 * 1=A/D have max +/-10V input
65 * [5] - 0=D/A outputs 0-5V (internal reference -5V)
66 * 1=D/A outputs 0-10V (internal reference -10V)
67 * 2=D/A outputs unknown (external reference)
69 * Options for ACL-8112DG/HG, A-822PGL/PGH, A-823PGL/PGH, ACL-8216, A-826PG:
71 * [1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7; 10, 11, 12, 14, 15)
72 * [2] - DMA (0=disable, 1, 3)
73 * [3] - 0=trigger source is internal 8253 with 2MHz clock
74 * 1=trigger source is external
75 * [4] - 0=A/D channels are S.E.
76 * 1=A/D channels are DIFF
77 * [5] - 0=D/A outputs 0-5V (internal reference -5V)
78 * 1=D/A outputs 0-10V (internal reference -10V)
79 * 2=D/A outputs unknown (external reference)
81 * Options for A-821PGL/PGH:
83 * [1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7)
84 * [2] - 0=A/D channels are S.E.
85 * 1=A/D channels are DIFF
86 * [3] - 0=D/A output 0-5V (internal reference -5V)
87 * 1=D/A output 0-10V (internal reference -10V)
89 * Options for A-821PGL-NDA:
91 * [1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7)
92 * [2] - 0=A/D channels are S.E.
93 * 1=A/D channels are DIFF
95 * Options for PCL-813:
98 * Options for PCL-813B:
100 * [1] - 0= bipolar inputs
103 * Options for ACL-8113, ISO-813:
105 * [1] - 0= 10V bipolar inputs
106 * 1= 10V unipolar inputs
107 * 2= 20V bipolar inputs
108 * 3= 20V unipolar inputs
111 #include <linux/interrupt.h>
112 #include <linux/gfp.h>
113 #include "../comedidev.h"
115 #include <linux/delay.h>
116 #include <linux/ioport.h>
121 /* if this is defined then a lot of messages is printed */
122 #undef PCL812_EXTDEBUG
124 /* hardware types of the cards */
125 #define boardPCL812PG 0 /* and ACL-8112PG */
126 #define boardPCL813B 1
127 #define boardPCL812 2
128 #define boardPCL813 3
129 #define boardISO813 5
130 #define boardACL8113 6
131 #define boardACL8112 7 /* ACL-8112DG/HG, A-822PGL/PGH, A-823PGL/PGH */
132 #define boardACL8216 8 /* and ICP DAS A-826PG */
133 #define boardA821 9 /* PGH, PGL, PGL/NDA versions */
135 #define PCLx1x_IORANGE 16
137 #define PCL812_CTR0 0
138 #define PCL812_CTR1 1
139 #define PCL812_CTR2 2
140 #define PCL812_CTRCTL 3
141 #define PCL812_AD_LO 4
142 #define PCL812_DA1_LO 4
143 #define PCL812_AD_HI 5
144 #define PCL812_DA1_HI 5
145 #define PCL812_DA2_LO 6
146 #define PCL812_DI_LO 6
147 #define PCL812_DA2_HI 7
148 #define PCL812_DI_HI 7
149 #define PCL812_CLRINT 8
150 #define PCL812_GAIN 9
151 #define PCL812_MUX 10
152 #define PCL812_MODE 11
153 #define PCL812_CNTENABLE 10
154 #define PCL812_SOFTTRIG 12
155 #define PCL812_DO_LO 13
156 #define PCL812_DO_HI 14
158 #define PCL812_DRDY 0x10 /* =0 data ready */
160 #define ACL8216_STATUS 8 /* 5. bit signalize data ready */
162 #define ACL8216_DRDY 0x20 /* =0 data ready */
164 #define MAX_CHANLIST_LEN 256 /* length of scan list */
166 static const struct comedi_lrange range_pcl812pg_ai = { 5, {
175 static const struct comedi_lrange range_pcl812pg2_ai = { 5, {
184 static const struct comedi_lrange range812_bipolar1_25 = { 1, {
189 static const struct comedi_lrange range812_bipolar0_625 = { 1, {
195 static const struct comedi_lrange range812_bipolar0_3125 = { 1, {
201 static const struct comedi_lrange range_pcl813b_ai = { 4, {
209 static const struct comedi_lrange range_pcl813b2_ai = { 4, {
217 static const struct comedi_lrange range_iso813_1_ai = { 5, {
226 static const struct comedi_lrange range_iso813_1_2_ai = { 5, {
235 static const struct comedi_lrange range_iso813_2_ai = { 4, {
243 static const struct comedi_lrange range_iso813_2_2_ai = { 4, {
251 static const struct comedi_lrange range_acl8113_1_ai = { 4, {
259 static const struct comedi_lrange range_acl8113_1_2_ai = { 4, {
267 static const struct comedi_lrange range_acl8113_2_ai = { 3, {
274 static const struct comedi_lrange range_acl8113_2_2_ai = { 3, {
281 static const struct comedi_lrange range_acl8112dg_ai = { 9, {
294 static const struct comedi_lrange range_acl8112hg_ai = { 12, {
310 static const struct comedi_lrange range_a821pgh_ai = { 4, {
318 static int pcl812_attach(struct comedi_device *dev,
319 struct comedi_devconfig *it);
320 static int pcl812_detach(struct comedi_device *dev);
322 struct pcl812_board {
324 const char *name; /* board name */
325 int board_type; /* type of this board */
326 int n_aichan; /* num of AI chans in S.E. */
327 int n_aichan_diff; /* DIFF num of chans */
328 int n_aochan; /* num of DA chans */
329 int n_dichan; /* DI and DO chans */
331 int ai_maxdata; /* AI resolution */
332 unsigned int ai_ns_min; /* max sample speed of card v ns */
333 unsigned int i8254_osc_base; /* clock base */
334 const struct comedi_lrange *rangelist_ai; /* rangelist for A/D */
335 const struct comedi_lrange *rangelist_ao; /* rangelist for D/A */
336 unsigned int IRQbits; /* allowed IRQ */
337 unsigned char DMAbits; /* allowed DMA chans */
338 unsigned char io_range; /* iorange for this board */
339 unsigned char haveMPC508; /* 1=board use MPC508A multiplexor */
342 static const struct pcl812_board boardtypes[] = {
343 {"pcl812", boardPCL812, 16, 0, 2, 16, 16, 0x0fff,
344 33000, 500, &range_bipolar10, &range_unipolar5,
345 0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
346 {"pcl812pg", boardPCL812PG, 16, 0, 2, 16, 16, 0x0fff,
347 33000, 500, &range_pcl812pg_ai, &range_unipolar5,
348 0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
349 {"acl8112pg", boardPCL812PG, 16, 0, 2, 16, 16, 0x0fff,
350 10000, 500, &range_pcl812pg_ai, &range_unipolar5,
351 0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
352 {"acl8112dg", boardACL8112, 16, 8, 2, 16, 16, 0x0fff,
353 10000, 500, &range_acl8112dg_ai, &range_unipolar5,
354 0xdcfc, 0x0a, PCLx1x_IORANGE, 1},
355 {"acl8112hg", boardACL8112, 16, 8, 2, 16, 16, 0x0fff,
356 10000, 500, &range_acl8112hg_ai, &range_unipolar5,
357 0xdcfc, 0x0a, PCLx1x_IORANGE, 1},
358 {"a821pgl", boardA821, 16, 8, 1, 16, 16, 0x0fff,
359 10000, 500, &range_pcl813b_ai, &range_unipolar5,
360 0x000c, 0x00, PCLx1x_IORANGE, 0},
361 {"a821pglnda", boardA821, 16, 8, 0, 0, 0, 0x0fff,
362 10000, 500, &range_pcl813b_ai, NULL,
363 0x000c, 0x00, PCLx1x_IORANGE, 0},
364 {"a821pgh", boardA821, 16, 8, 1, 16, 16, 0x0fff,
365 10000, 500, &range_a821pgh_ai, &range_unipolar5,
366 0x000c, 0x00, PCLx1x_IORANGE, 0},
367 {"a822pgl", boardACL8112, 16, 8, 2, 16, 16, 0x0fff,
368 10000, 500, &range_acl8112dg_ai, &range_unipolar5,
369 0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
370 {"a822pgh", boardACL8112, 16, 8, 2, 16, 16, 0x0fff,
371 10000, 500, &range_acl8112hg_ai, &range_unipolar5,
372 0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
373 {"a823pgl", boardACL8112, 16, 8, 2, 16, 16, 0x0fff,
374 8000, 500, &range_acl8112dg_ai, &range_unipolar5,
375 0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
376 {"a823pgh", boardACL8112, 16, 8, 2, 16, 16, 0x0fff,
377 8000, 500, &range_acl8112hg_ai, &range_unipolar5,
378 0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
379 {"pcl813", boardPCL813, 32, 0, 0, 0, 0, 0x0fff,
380 0, 0, &range_pcl813b_ai, NULL,
381 0x0000, 0x00, PCLx1x_IORANGE, 0},
382 {"pcl813b", boardPCL813B, 32, 0, 0, 0, 0, 0x0fff,
383 0, 0, &range_pcl813b_ai, NULL,
384 0x0000, 0x00, PCLx1x_IORANGE, 0},
385 {"acl8113", boardACL8113, 32, 0, 0, 0, 0, 0x0fff,
386 0, 0, &range_acl8113_1_ai, NULL,
387 0x0000, 0x00, PCLx1x_IORANGE, 0},
388 {"iso813", boardISO813, 32, 0, 0, 0, 0, 0x0fff,
389 0, 0, &range_iso813_1_ai, NULL,
390 0x0000, 0x00, PCLx1x_IORANGE, 0},
391 {"acl8216", boardACL8216, 16, 8, 2, 16, 16, 0xffff,
392 10000, 500, &range_pcl813b2_ai, &range_unipolar5,
393 0xdcfc, 0x0a, PCLx1x_IORANGE, 1},
394 {"a826pg", boardACL8216, 16, 8, 2, 16, 16, 0xffff,
395 10000, 500, &range_pcl813b2_ai, &range_unipolar5,
396 0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
399 #define n_boardtypes (sizeof(boardtypes)/sizeof(struct pcl812_board))
400 #define this_board ((const struct pcl812_board *)dev->board_ptr)
402 static struct comedi_driver driver_pcl812 = {
403 .driver_name = "pcl812",
404 .module = THIS_MODULE,
405 .attach = pcl812_attach,
406 .detach = pcl812_detach,
407 .board_name = &boardtypes[0].name,
408 .num_names = n_boardtypes,
409 .offset = sizeof(struct pcl812_board),
412 static int __init driver_pcl812_init_module(void)
414 return comedi_driver_register(&driver_pcl812);
417 static void __exit driver_pcl812_cleanup_module(void)
419 comedi_driver_unregister(&driver_pcl812);
422 module_init(driver_pcl812_init_module);
423 module_exit(driver_pcl812_cleanup_module);
425 struct pcl812_private {
427 unsigned char valid; /* =1 device is OK */
428 unsigned char dma; /* >0 use dma ( usedDMA channel) */
429 unsigned char use_diff; /* =1 diff inputs */
430 unsigned char use_MPC; /* 1=board uses MPC508A multiplexor */
431 unsigned char use_ext_trg; /* 1=board uses external trigger */
432 unsigned char range_correction; /* =1 we must add 1 to range number */
433 unsigned char old_chan_reg; /* lastly used chan/gain pair */
434 unsigned char old_gain_reg;
435 unsigned char mode_reg_int; /* there is stored INT number for some card */
436 unsigned char ai_neverending; /* =1 we do unlimited AI */
437 unsigned char ai_eos; /* 1=EOS wake up */
438 unsigned char ai_dma; /* =1 we use DMA */
439 unsigned int ai_poll_ptr; /* how many sampes transfer poll */
440 unsigned int ai_scans; /* len of scanlist */
441 unsigned int ai_act_scan; /* how many scans we finished */
442 unsigned int ai_chanlist[MAX_CHANLIST_LEN]; /* our copy of channel/range list */
443 unsigned int ai_n_chan; /* how many channels is measured */
444 unsigned int ai_flags; /* flaglist */
445 unsigned int ai_data_len; /* len of data buffer */
446 short *ai_data; /* data buffer */
447 unsigned int ai_is16b; /* =1 we have 16 bit card */
448 unsigned long dmabuf[2]; /* PTR to DMA buf */
449 unsigned int dmapages[2]; /* how many pages we have allocated */
450 unsigned int hwdmaptr[2]; /* HW PTR to DMA buf */
451 unsigned int hwdmasize[2]; /* DMA buf size in bytes */
452 unsigned int dmabytestomove[2]; /* how many bytes DMA transfer */
453 int next_dma_buf; /* which buffer is next to use */
454 unsigned int dma_runs_to_end; /* how many times we must switch DMA buffers */
455 unsigned int last_dma_run; /* how many bytes to transfer on last DMA buffer */
456 unsigned int max_812_ai_mode0_rangewait; /* setling time for gain */
457 unsigned int ao_readback[2]; /* data for AO readback */
460 #define devpriv ((struct pcl812_private *)dev->private)
463 ==============================================================================
465 static void start_pacer(struct comedi_device *dev, int mode,
466 unsigned int divisor1, unsigned int divisor2);
467 static void setup_range_channel(struct comedi_device *dev,
468 struct comedi_subdevice *s,
469 unsigned int rangechan, char wait);
470 static int pcl812_ai_cancel(struct comedi_device *dev,
471 struct comedi_subdevice *s);
473 ==============================================================================
475 static int pcl812_ai_insn_read(struct comedi_device *dev,
476 struct comedi_subdevice *s,
477 struct comedi_insn *insn, unsigned int *data)
482 /* select software trigger */
483 outb(devpriv->mode_reg_int | 1, dev->iobase + PCL812_MODE);
484 /* select channel and renge */
485 setup_range_channel(dev, s, insn->chanspec, 1);
486 for (n = 0; n < insn->n; n++) {
487 /* start conversion */
488 outb(255, dev->iobase + PCL812_SOFTTRIG);
490 timeout = 50; /* wait max 50us, it must finish under 33us */
492 hi = inb(dev->iobase + PCL812_AD_HI);
493 if (!(hi & PCL812_DRDY))
498 ("comedi%d: pcl812: (%s at 0x%lx) A/D insn read timeout\n",
499 dev->minor, dev->board_name, dev->iobase);
500 outb(devpriv->mode_reg_int | 0, dev->iobase + PCL812_MODE);
504 data[n] = ((hi & 0xf) << 8) | inb(dev->iobase + PCL812_AD_LO);
506 outb(devpriv->mode_reg_int | 0, dev->iobase + PCL812_MODE);
511 ==============================================================================
513 static int acl8216_ai_insn_read(struct comedi_device *dev,
514 struct comedi_subdevice *s,
515 struct comedi_insn *insn, unsigned int *data)
520 /* select software trigger */
521 outb(1, dev->iobase + PCL812_MODE);
522 /* select channel and renge */
523 setup_range_channel(dev, s, insn->chanspec, 1);
524 for (n = 0; n < insn->n; n++) {
525 /* start conversion */
526 outb(255, dev->iobase + PCL812_SOFTTRIG);
528 timeout = 50; /* wait max 50us, it must finish under 33us */
530 if (!(inb(dev->iobase + ACL8216_STATUS) & ACL8216_DRDY))
535 ("comedi%d: pcl812: (%s at 0x%lx) A/D insn read timeout\n",
536 dev->minor, dev->board_name, dev->iobase);
537 outb(0, dev->iobase + PCL812_MODE);
543 PCL812_AD_HI) << 8) | inb(dev->iobase + PCL812_AD_LO);
545 outb(0, dev->iobase + PCL812_MODE);
550 ==============================================================================
552 static int pcl812_ao_insn_write(struct comedi_device *dev,
553 struct comedi_subdevice *s,
554 struct comedi_insn *insn, unsigned int *data)
556 int chan = CR_CHAN(insn->chanspec);
559 for (i = 0; i < insn->n; i++) {
560 outb((data[i] & 0xff),
561 dev->iobase + (chan ? PCL812_DA2_LO : PCL812_DA1_LO));
562 outb((data[i] >> 8) & 0x0f,
563 dev->iobase + (chan ? PCL812_DA2_HI : PCL812_DA1_HI));
564 devpriv->ao_readback[chan] = data[i];
571 ==============================================================================
573 static int pcl812_ao_insn_read(struct comedi_device *dev,
574 struct comedi_subdevice *s,
575 struct comedi_insn *insn, unsigned int *data)
577 int chan = CR_CHAN(insn->chanspec);
580 for (i = 0; i < insn->n; i++)
581 data[i] = devpriv->ao_readback[chan];
587 ==============================================================================
589 static int pcl812_di_insn_bits(struct comedi_device *dev,
590 struct comedi_subdevice *s,
591 struct comedi_insn *insn, unsigned int *data)
596 data[1] = inb(dev->iobase + PCL812_DI_LO);
597 data[1] |= inb(dev->iobase + PCL812_DI_HI) << 8;
603 ==============================================================================
605 static int pcl812_do_insn_bits(struct comedi_device *dev,
606 struct comedi_subdevice *s,
607 struct comedi_insn *insn, unsigned int *data)
613 s->state &= ~data[0];
614 s->state |= data[0] & data[1];
615 outb(s->state & 0xff, dev->iobase + PCL812_DO_LO);
616 outb((s->state >> 8), dev->iobase + PCL812_DO_HI);
623 #ifdef PCL812_EXTDEBUG
625 ==============================================================================
627 static void pcl812_cmdtest_out(int e, struct comedi_cmd *cmd)
629 printk(KERN_INFO "pcl812 e=%d startsrc=%x scansrc=%x convsrc=%x\n", e,
630 cmd->start_src, cmd->scan_begin_src, cmd->convert_src);
631 printk(KERN_INFO "pcl812 e=%d startarg=%d scanarg=%d convarg=%d\n", e,
632 cmd->start_arg, cmd->scan_begin_arg, cmd->convert_arg);
633 printk(KERN_INFO "pcl812 e=%d stopsrc=%x scanend=%x\n", e,
634 cmd->stop_src, cmd->scan_end_src);
635 printk(KERN_INFO "pcl812 e=%d stoparg=%d scanendarg=%d "
636 "chanlistlen=%d\n", e, cmd->stop_arg, cmd->scan_end_arg,
642 ==============================================================================
644 static int pcl812_ai_cmdtest(struct comedi_device *dev,
645 struct comedi_subdevice *s, struct comedi_cmd *cmd)
648 int tmp, divisor1, divisor2;
650 #ifdef PCL812_EXTDEBUG
651 printk("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...)\n");
652 pcl812_cmdtest_out(-1, cmd);
654 /* step 1: make sure trigger sources are trivially valid */
656 tmp = cmd->start_src;
657 cmd->start_src &= TRIG_NOW;
658 if (!cmd->start_src || tmp != cmd->start_src)
661 tmp = cmd->scan_begin_src;
662 cmd->scan_begin_src &= TRIG_FOLLOW;
663 if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
666 tmp = cmd->convert_src;
667 if (devpriv->use_ext_trg)
668 cmd->convert_src &= TRIG_EXT;
670 cmd->convert_src &= TRIG_TIMER;
672 if (!cmd->convert_src || tmp != cmd->convert_src)
675 tmp = cmd->scan_end_src;
676 cmd->scan_end_src &= TRIG_COUNT;
677 if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
681 cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
682 if (!cmd->stop_src || tmp != cmd->stop_src)
686 #ifdef PCL812_EXTDEBUG
687 pcl812_cmdtest_out(1, cmd);
689 ("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...) err=%d ret=1\n",
696 * step 2: make sure trigger sources are
697 * unique and mutually compatible
700 if (cmd->start_src != TRIG_NOW) {
701 cmd->start_src = TRIG_NOW;
705 if (cmd->scan_begin_src != TRIG_FOLLOW) {
706 cmd->scan_begin_src = TRIG_FOLLOW;
710 if (devpriv->use_ext_trg) {
711 if (cmd->convert_src != TRIG_EXT) {
712 cmd->convert_src = TRIG_EXT;
716 if (cmd->convert_src != TRIG_TIMER) {
717 cmd->convert_src = TRIG_TIMER;
722 if (cmd->scan_end_src != TRIG_COUNT) {
723 cmd->scan_end_src = TRIG_COUNT;
727 if (cmd->stop_src != TRIG_NONE && cmd->stop_src != TRIG_COUNT)
731 #ifdef PCL812_EXTDEBUG
732 pcl812_cmdtest_out(2, cmd);
734 ("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...) err=%d ret=2\n",
740 /* step 3: make sure arguments are trivially compatible */
742 if (cmd->start_arg != 0) {
747 if (cmd->scan_begin_arg != 0) {
748 cmd->scan_begin_arg = 0;
752 if (cmd->convert_src == TRIG_TIMER) {
753 if (cmd->convert_arg < this_board->ai_ns_min) {
754 cmd->convert_arg = this_board->ai_ns_min;
757 } else { /* TRIG_EXT */
758 if (cmd->convert_arg != 0) {
759 cmd->convert_arg = 0;
764 if (!cmd->chanlist_len) {
765 cmd->chanlist_len = 1;
768 if (cmd->chanlist_len > MAX_CHANLIST_LEN) {
769 cmd->chanlist_len = this_board->n_aichan;
772 if (cmd->scan_end_arg != cmd->chanlist_len) {
773 cmd->scan_end_arg = cmd->chanlist_len;
776 if (cmd->stop_src == TRIG_COUNT) {
777 if (!cmd->stop_arg) {
781 } else { /* TRIG_NONE */
782 if (cmd->stop_arg != 0) {
789 #ifdef PCL812_EXTDEBUG
790 pcl812_cmdtest_out(3, cmd);
792 ("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...) err=%d ret=3\n",
798 /* step 4: fix up any arguments */
800 if (cmd->convert_src == TRIG_TIMER) {
801 tmp = cmd->convert_arg;
802 i8253_cascade_ns_to_timer(this_board->i8254_osc_base, &divisor1,
803 &divisor2, &cmd->convert_arg,
804 cmd->flags & TRIG_ROUND_MASK);
805 if (cmd->convert_arg < this_board->ai_ns_min)
806 cmd->convert_arg = this_board->ai_ns_min;
807 if (tmp != cmd->convert_arg)
812 #ifdef PCL812_EXTDEBUG
814 ("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...) err=%d ret=4\n",
824 ==============================================================================
826 static int pcl812_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
828 unsigned int divisor1 = 0, divisor2 = 0, i, dma_flags, bytes;
829 struct comedi_cmd *cmd = &s->async->cmd;
831 #ifdef PCL812_EXTDEBUG
832 printk(KERN_DEBUG "pcl812 EDBG: BGN: pcl812_ai_cmd(...)\n");
835 if (cmd->start_src != TRIG_NOW)
837 if (cmd->scan_begin_src != TRIG_FOLLOW)
839 if (devpriv->use_ext_trg) {
840 if (cmd->convert_src != TRIG_EXT)
843 if (cmd->convert_src != TRIG_TIMER)
846 if (cmd->scan_end_src != TRIG_COUNT)
848 if (cmd->scan_end_arg != cmd->chanlist_len)
850 if (cmd->chanlist_len > MAX_CHANLIST_LEN)
853 if (cmd->convert_src == TRIG_TIMER) {
854 if (cmd->convert_arg < this_board->ai_ns_min)
855 cmd->convert_arg = this_board->ai_ns_min;
856 i8253_cascade_ns_to_timer(this_board->i8254_osc_base,
857 &divisor1, &divisor2,
859 cmd->flags & TRIG_ROUND_MASK);
862 start_pacer(dev, -1, 0, 0); /* stop pacer */
864 devpriv->ai_n_chan = cmd->chanlist_len;
865 memcpy(devpriv->ai_chanlist, cmd->chanlist,
866 sizeof(unsigned int) * cmd->scan_end_arg);
867 /* select first channel and range */
868 setup_range_channel(dev, s, devpriv->ai_chanlist[0], 1);
870 if (devpriv->dma) { /* check if we can use DMA transfer */
872 for (i = 1; i < devpriv->ai_n_chan; i++)
873 if (devpriv->ai_chanlist[0] != devpriv->ai_chanlist[i]) {
874 /* we cann't use DMA :-( */
881 devpriv->ai_flags = cmd->flags;
882 devpriv->ai_data_len = s->async->prealloc_bufsz;
883 devpriv->ai_data = s->async->prealloc_buf;
884 if (cmd->stop_src == TRIG_COUNT) {
885 devpriv->ai_scans = cmd->stop_arg;
886 devpriv->ai_neverending = 0;
888 devpriv->ai_scans = 0;
889 devpriv->ai_neverending = 1;
892 devpriv->ai_act_scan = 0;
893 devpriv->ai_poll_ptr = 0;
894 s->async->cur_chan = 0;
896 /* don't we want wake up every scan? */
897 if ((devpriv->ai_flags & TRIG_WAKE_EOS)) {
900 /* DMA is useless for this situation */
901 if (devpriv->ai_n_chan == 1)
905 if (devpriv->ai_dma) {
906 /* we use EOS, so adapt DMA buffer to one scan */
907 if (devpriv->ai_eos) {
908 devpriv->dmabytestomove[0] =
909 devpriv->ai_n_chan * sizeof(short);
910 devpriv->dmabytestomove[1] =
911 devpriv->ai_n_chan * sizeof(short);
912 devpriv->dma_runs_to_end = 1;
914 devpriv->dmabytestomove[0] = devpriv->hwdmasize[0];
915 devpriv->dmabytestomove[1] = devpriv->hwdmasize[1];
916 if (devpriv->ai_data_len < devpriv->hwdmasize[0])
917 devpriv->dmabytestomove[0] =
918 devpriv->ai_data_len;
919 if (devpriv->ai_data_len < devpriv->hwdmasize[1])
920 devpriv->dmabytestomove[1] =
921 devpriv->ai_data_len;
922 if (devpriv->ai_neverending) {
923 devpriv->dma_runs_to_end = 1;
925 /* how many samples we must transfer? */
926 bytes = devpriv->ai_n_chan *
927 devpriv->ai_scans * sizeof(short);
929 /* how many DMA pages we must fill */
930 devpriv->dma_runs_to_end =
931 bytes / devpriv->dmabytestomove[0];
933 /* on last dma transfer must be moved */
934 devpriv->last_dma_run =
935 bytes % devpriv->dmabytestomove[0];
936 if (devpriv->dma_runs_to_end == 0)
937 devpriv->dmabytestomove[0] =
938 devpriv->last_dma_run;
939 devpriv->dma_runs_to_end--;
942 if (devpriv->dmabytestomove[0] > devpriv->hwdmasize[0]) {
943 devpriv->dmabytestomove[0] = devpriv->hwdmasize[0];
946 if (devpriv->dmabytestomove[1] > devpriv->hwdmasize[1]) {
947 devpriv->dmabytestomove[1] = devpriv->hwdmasize[1];
950 devpriv->next_dma_buf = 0;
951 set_dma_mode(devpriv->dma, DMA_MODE_READ);
952 dma_flags = claim_dma_lock();
953 clear_dma_ff(devpriv->dma);
954 set_dma_addr(devpriv->dma, devpriv->hwdmaptr[0]);
955 set_dma_count(devpriv->dma, devpriv->dmabytestomove[0]);
956 release_dma_lock(dma_flags);
957 enable_dma(devpriv->dma);
958 #ifdef PCL812_EXTDEBUG
960 ("pcl812 EDBG: DMA %d PTR 0x%0x/0x%0x LEN %u/%u EOS %d\n",
961 devpriv->dma, devpriv->hwdmaptr[0],
962 devpriv->hwdmaptr[1], devpriv->dmabytestomove[0],
963 devpriv->dmabytestomove[1], devpriv->ai_eos);
967 switch (cmd->convert_src) {
969 start_pacer(dev, 1, divisor1, divisor2);
973 if (devpriv->ai_dma) /* let's go! */
974 outb(devpriv->mode_reg_int | 2, dev->iobase + PCL812_MODE);
976 outb(devpriv->mode_reg_int | 6, dev->iobase + PCL812_MODE);
978 #ifdef PCL812_EXTDEBUG
979 printk(KERN_DEBUG "pcl812 EDBG: END: pcl812_ai_cmd(...)\n");
986 ==============================================================================
988 static irqreturn_t interrupt_pcl812_ai_int(int irq, void *d)
991 unsigned int mask, timeout;
992 struct comedi_device *dev = d;
993 struct comedi_subdevice *s = dev->subdevices + 0;
994 unsigned int next_chan;
996 s->async->events = 0;
998 timeout = 50; /* wait max 50us, it must finish under 33us */
999 if (devpriv->ai_is16b) {
1002 if (!(inb(dev->iobase + ACL8216_STATUS) & ACL8216_DRDY)) {
1011 if (!(inb(dev->iobase + PCL812_AD_HI) & PCL812_DRDY)) {
1021 ("comedi%d: pcl812: (%s at 0x%lx) "
1022 "A/D cmd IRQ without DRDY!\n",
1023 dev->minor, dev->board_name, dev->iobase);
1024 pcl812_ai_cancel(dev, s);
1025 s->async->events |= COMEDI_CB_EOA | COMEDI_CB_ERROR;
1026 comedi_event(dev, s);
1030 comedi_buf_put(s->async,
1031 ((inb(dev->iobase + PCL812_AD_HI) << 8) |
1032 inb(dev->iobase + PCL812_AD_LO)) & mask);
1034 /* Set up next channel. Added by abbotti 2010-01-20, but untested. */
1035 next_chan = s->async->cur_chan + 1;
1036 if (next_chan >= devpriv->ai_n_chan)
1038 if (devpriv->ai_chanlist[s->async->cur_chan] !=
1039 devpriv->ai_chanlist[next_chan])
1040 setup_range_channel(dev, s, devpriv->ai_chanlist[next_chan], 0);
1042 outb(0, dev->iobase + PCL812_CLRINT); /* clear INT request */
1044 s->async->cur_chan = next_chan;
1045 if (next_chan == 0) { /* one scan done */
1046 devpriv->ai_act_scan++;
1047 if (!(devpriv->ai_neverending))
1048 /* all data sampled */
1049 if (devpriv->ai_act_scan >= devpriv->ai_scans) {
1050 pcl812_ai_cancel(dev, s);
1051 s->async->events |= COMEDI_CB_EOA;
1055 comedi_event(dev, s);
1060 ==============================================================================
1062 static void transfer_from_dma_buf(struct comedi_device *dev,
1063 struct comedi_subdevice *s, short *ptr,
1064 unsigned int bufptr, unsigned int len)
1068 s->async->events = 0;
1069 for (i = len; i; i--) {
1070 /* get one sample */
1071 comedi_buf_put(s->async, ptr[bufptr++]);
1073 s->async->cur_chan++;
1074 if (s->async->cur_chan >= devpriv->ai_n_chan) {
1075 s->async->cur_chan = 0;
1076 devpriv->ai_act_scan++;
1077 if (!devpriv->ai_neverending)
1078 /* all data sampled */
1079 if (devpriv->ai_act_scan >= devpriv->ai_scans) {
1080 pcl812_ai_cancel(dev, s);
1081 s->async->events |= COMEDI_CB_EOA;
1087 comedi_event(dev, s);
1091 ==============================================================================
1093 static irqreturn_t interrupt_pcl812_ai_dma(int irq, void *d)
1095 struct comedi_device *dev = d;
1096 struct comedi_subdevice *s = dev->subdevices + 0;
1097 unsigned long dma_flags;
1101 #ifdef PCL812_EXTDEBUG
1102 printk(KERN_DEBUG "pcl812 EDBG: BGN: interrupt_pcl812_ai_dma(...)\n");
1104 ptr = (short *)devpriv->dmabuf[devpriv->next_dma_buf];
1105 len = (devpriv->dmabytestomove[devpriv->next_dma_buf] >> 1) -
1106 devpriv->ai_poll_ptr;
1108 devpriv->next_dma_buf = 1 - devpriv->next_dma_buf;
1109 disable_dma(devpriv->dma);
1110 set_dma_mode(devpriv->dma, DMA_MODE_READ);
1111 dma_flags = claim_dma_lock();
1112 set_dma_addr(devpriv->dma, devpriv->hwdmaptr[devpriv->next_dma_buf]);
1113 if (devpriv->ai_eos) {
1114 set_dma_count(devpriv->dma,
1115 devpriv->dmabytestomove[devpriv->next_dma_buf]);
1117 if (devpriv->dma_runs_to_end) {
1118 set_dma_count(devpriv->dma,
1119 devpriv->dmabytestomove[devpriv->
1122 set_dma_count(devpriv->dma, devpriv->last_dma_run);
1124 devpriv->dma_runs_to_end--;
1126 release_dma_lock(dma_flags);
1127 enable_dma(devpriv->dma);
1129 outb(0, dev->iobase + PCL812_CLRINT); /* clear INT request */
1131 bufptr = devpriv->ai_poll_ptr;
1132 devpriv->ai_poll_ptr = 0;
1134 transfer_from_dma_buf(dev, s, ptr, bufptr, len);
1136 #ifdef PCL812_EXTDEBUG
1137 printk(KERN_DEBUG "pcl812 EDBG: END: interrupt_pcl812_ai_dma(...)\n");
1143 ==============================================================================
1145 static irqreturn_t interrupt_pcl812(int irq, void *d)
1147 struct comedi_device *dev = d;
1149 if (!dev->attached) {
1150 comedi_error(dev, "spurious interrupt");
1153 if (devpriv->ai_dma)
1154 return interrupt_pcl812_ai_dma(irq, d);
1156 return interrupt_pcl812_ai_int(irq, d);
1160 ==============================================================================
1162 static int pcl812_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
1164 unsigned long flags;
1165 unsigned int top1, top2, i;
1167 if (!devpriv->ai_dma)
1168 return 0; /* poll is valid only for DMA transfer */
1170 spin_lock_irqsave(&dev->spinlock, flags);
1172 for (i = 0; i < 10; i++) {
1173 /* where is now DMA */
1174 top1 = get_dma_residue(devpriv->ai_dma);
1175 top2 = get_dma_residue(devpriv->ai_dma);
1181 spin_unlock_irqrestore(&dev->spinlock, flags);
1184 /* where is now DMA in buffer */
1185 top1 = devpriv->dmabytestomove[1 - devpriv->next_dma_buf] - top1;
1186 top1 >>= 1; /* sample position */
1187 top2 = top1 - devpriv->ai_poll_ptr;
1188 if (top2 < 1) { /* no new samples */
1189 spin_unlock_irqrestore(&dev->spinlock, flags);
1193 transfer_from_dma_buf(dev, s,
1194 (void *)devpriv->dmabuf[1 -
1195 devpriv->next_dma_buf],
1196 devpriv->ai_poll_ptr, top2);
1198 devpriv->ai_poll_ptr = top1; /* new buffer position */
1200 spin_unlock_irqrestore(&dev->spinlock, flags);
1202 return s->async->buf_write_count - s->async->buf_read_count;
1206 ==============================================================================
1208 static void setup_range_channel(struct comedi_device *dev,
1209 struct comedi_subdevice *s,
1210 unsigned int rangechan, char wait)
1212 unsigned char chan_reg = CR_CHAN(rangechan); /* normal board */
1214 unsigned char gain_reg = CR_RANGE(rangechan) +
1215 devpriv->range_correction;
1217 if ((chan_reg == devpriv->old_chan_reg)
1218 && (gain_reg == devpriv->old_gain_reg))
1219 return; /* we can return, no change */
1221 devpriv->old_chan_reg = chan_reg;
1222 devpriv->old_gain_reg = gain_reg;
1224 if (devpriv->use_MPC) {
1225 if (devpriv->use_diff) {
1226 chan_reg = chan_reg | 0x30; /* DIFF inputs */
1228 if (chan_reg & 0x80)
1229 /* SE inputs 8-15 */
1230 chan_reg = chan_reg | 0x20;
1233 chan_reg = chan_reg | 0x10;
1237 outb(chan_reg, dev->iobase + PCL812_MUX); /* select channel */
1238 outb(gain_reg, dev->iobase + PCL812_GAIN); /* select gain */
1243 * XXX this depends on selected range and can be very long for
1244 * some high gain ranges!
1246 udelay(devpriv->max_812_ai_mode0_rangewait);
1250 ==============================================================================
1252 static void start_pacer(struct comedi_device *dev, int mode,
1253 unsigned int divisor1, unsigned int divisor2)
1255 #ifdef PCL812_EXTDEBUG
1256 printk(KERN_DEBUG "pcl812 EDBG: BGN: start_pacer(%d,%u,%u)\n", mode,
1257 divisor1, divisor2);
1259 outb(0xb4, dev->iobase + PCL812_CTRCTL);
1260 outb(0x74, dev->iobase + PCL812_CTRCTL);
1264 outb(divisor2 & 0xff, dev->iobase + PCL812_CTR2);
1265 outb((divisor2 >> 8) & 0xff, dev->iobase + PCL812_CTR2);
1266 outb(divisor1 & 0xff, dev->iobase + PCL812_CTR1);
1267 outb((divisor1 >> 8) & 0xff, dev->iobase + PCL812_CTR1);
1269 #ifdef PCL812_EXTDEBUG
1270 printk(KERN_DEBUG "pcl812 EDBG: END: start_pacer(...)\n");
1275 ==============================================================================
1277 static void free_resources(struct comedi_device *dev)
1281 if (devpriv->dmabuf[0])
1282 free_pages(devpriv->dmabuf[0], devpriv->dmapages[0]);
1283 if (devpriv->dmabuf[1])
1284 free_pages(devpriv->dmabuf[1], devpriv->dmapages[1]);
1286 free_dma(devpriv->dma);
1289 free_irq(dev->irq, dev);
1291 release_region(dev->iobase, this_board->io_range);
1295 ==============================================================================
1297 static int pcl812_ai_cancel(struct comedi_device *dev,
1298 struct comedi_subdevice *s)
1300 #ifdef PCL812_EXTDEBUG
1301 printk(KERN_DEBUG "pcl812 EDBG: BGN: pcl812_ai_cancel(...)\n");
1303 if (devpriv->ai_dma)
1304 disable_dma(devpriv->dma);
1305 outb(0, dev->iobase + PCL812_CLRINT); /* clear INT request */
1307 outb(devpriv->mode_reg_int | 0, dev->iobase + PCL812_MODE);
1308 start_pacer(dev, -1, 0, 0); /* stop 8254 */
1309 outb(0, dev->iobase + PCL812_CLRINT); /* clear INT request */
1310 #ifdef PCL812_EXTDEBUG
1311 printk(KERN_DEBUG "pcl812 EDBG: END: pcl812_ai_cancel(...)\n");
1317 ==============================================================================
1319 static void pcl812_reset(struct comedi_device *dev)
1321 #ifdef PCL812_EXTDEBUG
1322 printk(KERN_DEBUG "pcl812 EDBG: BGN: pcl812_reset(...)\n");
1324 outb(0, dev->iobase + PCL812_MUX);
1325 outb(0 + devpriv->range_correction, dev->iobase + PCL812_GAIN);
1326 devpriv->old_chan_reg = -1; /* invalidate chain/gain memory */
1327 devpriv->old_gain_reg = -1;
1329 switch (this_board->board_type) {
1334 outb(0, dev->iobase + PCL812_DA2_LO);
1335 outb(0, dev->iobase + PCL812_DA2_HI);
1337 outb(0, dev->iobase + PCL812_DA1_LO);
1338 outb(0, dev->iobase + PCL812_DA1_HI);
1339 start_pacer(dev, -1, 0, 0); /* stop 8254 */
1340 outb(0, dev->iobase + PCL812_DO_HI);
1341 outb(0, dev->iobase + PCL812_DO_LO);
1342 outb(devpriv->mode_reg_int | 0, dev->iobase + PCL812_MODE);
1343 outb(0, dev->iobase + PCL812_CLRINT);
1353 #ifdef PCL812_EXTDEBUG
1354 printk(KERN_DEBUG "pcl812 EDBG: END: pcl812_reset(...)\n");
1359 ==============================================================================
1361 static int pcl812_attach(struct comedi_device *dev, struct comedi_devconfig *it)
1364 unsigned long iobase;
1367 unsigned long pages;
1368 struct comedi_subdevice *s;
1371 iobase = it->options[0];
1372 printk(KERN_INFO "comedi%d: pcl812: board=%s, ioport=0x%03lx",
1373 dev->minor, this_board->name, iobase);
1375 if (!request_region(iobase, this_board->io_range, "pcl812")) {
1376 printk("I/O port conflict\n");
1379 dev->iobase = iobase;
1381 ret = alloc_private(dev, sizeof(struct pcl812_private));
1383 free_resources(dev);
1384 return ret; /* Can't alloc mem */
1387 dev->board_name = this_board->name;
1390 if (this_board->IRQbits != 0) { /* board support IRQ */
1391 irq = it->options[1];
1392 if (irq) { /* we want to use IRQ */
1393 if (((1 << irq) & this_board->IRQbits) == 0) {
1395 (", IRQ %u is out of allowed range, "
1396 "DISABLING IT", irq);
1397 irq = 0; /* Bad IRQ */
1400 (irq, interrupt_pcl812, 0, "pcl812", dev)) {
1402 (", unable to allocate IRQ %u, "
1403 "DISABLING IT", irq);
1404 irq = 0; /* Can't use IRQ */
1406 printk(KERN_INFO ", irq=%u", irq);
1417 goto no_dma; /* if we haven't IRQ, we can't use DMA */
1418 if (this_board->DMAbits != 0) { /* board support DMA */
1419 dma = it->options[2];
1420 if (((1 << dma) & this_board->DMAbits) == 0) {
1421 printk(", DMA is out of allowed range, FAIL!\n");
1422 return -EINVAL; /* Bad DMA */
1424 ret = request_dma(dma, "pcl812");
1426 printk(KERN_ERR ", unable to allocate DMA %u, FAIL!\n",
1428 return -EBUSY; /* DMA isn't free */
1431 printk(KERN_INFO ", dma=%u", dma);
1432 pages = 1; /* we want 8KB */
1433 devpriv->dmabuf[0] = __get_dma_pages(GFP_KERNEL, pages);
1434 if (!devpriv->dmabuf[0]) {
1435 printk(", unable to allocate DMA buffer, FAIL!\n");
1437 * maybe experiment with try_to_free_pages()
1440 free_resources(dev);
1441 return -EBUSY; /* no buffer :-( */
1443 devpriv->dmapages[0] = pages;
1444 devpriv->hwdmaptr[0] = virt_to_bus((void *)devpriv->dmabuf[0]);
1445 devpriv->hwdmasize[0] = PAGE_SIZE * (1 << pages);
1446 devpriv->dmabuf[1] = __get_dma_pages(GFP_KERNEL, pages);
1447 if (!devpriv->dmabuf[1]) {
1448 printk(KERN_ERR ", unable to allocate DMA buffer, FAIL!\n");
1449 free_resources(dev);
1452 devpriv->dmapages[1] = pages;
1453 devpriv->hwdmaptr[1] = virt_to_bus((void *)devpriv->dmabuf[1]);
1454 devpriv->hwdmasize[1] = PAGE_SIZE * (1 << pages);
1459 if (this_board->n_aichan > 0)
1461 if (this_board->n_aochan > 0)
1463 if (this_board->n_dichan > 0)
1465 if (this_board->n_dochan > 0)
1468 ret = alloc_subdevices(dev, n_subdevices);
1470 free_resources(dev);
1477 if (this_board->n_aichan > 0) {
1478 s = dev->subdevices + subdev;
1479 s->type = COMEDI_SUBD_AI;
1480 s->subdev_flags = SDF_READABLE;
1481 switch (this_board->board_type) {
1483 if (it->options[2] == 1) {
1484 s->n_chan = this_board->n_aichan_diff;
1485 s->subdev_flags |= SDF_DIFF;
1486 devpriv->use_diff = 1;
1488 s->n_chan = this_board->n_aichan;
1489 s->subdev_flags |= SDF_GROUND;
1494 if (it->options[4] == 1) {
1495 s->n_chan = this_board->n_aichan_diff;
1496 s->subdev_flags |= SDF_DIFF;
1497 devpriv->use_diff = 1;
1499 s->n_chan = this_board->n_aichan;
1500 s->subdev_flags |= SDF_GROUND;
1504 s->n_chan = this_board->n_aichan;
1505 s->subdev_flags |= SDF_GROUND;
1508 s->maxdata = this_board->ai_maxdata;
1509 s->len_chanlist = MAX_CHANLIST_LEN;
1510 s->range_table = this_board->rangelist_ai;
1511 if (this_board->board_type == boardACL8216)
1512 s->insn_read = acl8216_ai_insn_read;
1514 s->insn_read = pcl812_ai_insn_read;
1516 devpriv->use_MPC = this_board->haveMPC508;
1517 s->cancel = pcl812_ai_cancel;
1519 dev->read_subdev = s;
1520 s->subdev_flags |= SDF_CMD_READ;
1521 s->do_cmdtest = pcl812_ai_cmdtest;
1522 s->do_cmd = pcl812_ai_cmd;
1523 s->poll = pcl812_ai_poll;
1525 switch (this_board->board_type) {
1527 if (it->options[4] == 1)
1528 s->range_table = &range_pcl812pg2_ai;
1531 switch (it->options[4]) {
1533 s->range_table = &range_bipolar10;
1536 s->range_table = &range_bipolar5;
1539 s->range_table = &range_bipolar2_5;
1542 s->range_table = &range812_bipolar1_25;
1545 s->range_table = &range812_bipolar0_625;
1548 s->range_table = &range812_bipolar0_3125;
1551 s->range_table = &range_bipolar10;
1554 (", incorrect range number %d, changing "
1555 "to 0 (+/-10V)", it->options[4]);
1561 if (it->options[1] == 1)
1562 s->range_table = &range_pcl813b2_ai;
1565 switch (it->options[1]) {
1567 s->range_table = &range_iso813_1_ai;
1570 s->range_table = &range_iso813_1_2_ai;
1573 s->range_table = &range_iso813_2_ai;
1574 devpriv->range_correction = 1;
1577 s->range_table = &range_iso813_2_2_ai;
1578 devpriv->range_correction = 1;
1581 s->range_table = &range_iso813_1_ai;
1584 (", incorrect range number %d, "
1585 "changing to 0 ", it->options[1]);
1590 switch (it->options[1]) {
1592 s->range_table = &range_acl8113_1_ai;
1595 s->range_table = &range_acl8113_1_2_ai;
1598 s->range_table = &range_acl8113_2_ai;
1599 devpriv->range_correction = 1;
1602 s->range_table = &range_acl8113_2_2_ai;
1603 devpriv->range_correction = 1;
1606 s->range_table = &range_acl8113_1_ai;
1609 (", incorrect range number %d, "
1610 "changing to 0 ", it->options[1]);
1619 if (this_board->n_aochan > 0) {
1620 s = dev->subdevices + subdev;
1621 s->type = COMEDI_SUBD_AO;
1622 s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
1623 s->n_chan = this_board->n_aochan;
1625 s->len_chanlist = 1;
1626 s->range_table = this_board->rangelist_ao;
1627 s->insn_read = pcl812_ao_insn_read;
1628 s->insn_write = pcl812_ao_insn_write;
1629 switch (this_board->board_type) {
1631 if (it->options[3] == 1)
1632 s->range_table = &range_unipolar10;
1638 if (it->options[5] == 1)
1639 s->range_table = &range_unipolar10;
1640 if (it->options[5] == 2)
1641 s->range_table = &range_unknown;
1648 if (this_board->n_dichan > 0) {
1649 s = dev->subdevices + subdev;
1650 s->type = COMEDI_SUBD_DI;
1651 s->subdev_flags = SDF_READABLE;
1652 s->n_chan = this_board->n_dichan;
1654 s->len_chanlist = this_board->n_dichan;
1655 s->range_table = &range_digital;
1656 s->insn_bits = pcl812_di_insn_bits;
1660 /* digital output */
1661 if (this_board->n_dochan > 0) {
1662 s = dev->subdevices + subdev;
1663 s->type = COMEDI_SUBD_DO;
1664 s->subdev_flags = SDF_WRITABLE;
1665 s->n_chan = this_board->n_dochan;
1667 s->len_chanlist = this_board->n_dochan;
1668 s->range_table = &range_digital;
1669 s->insn_bits = pcl812_do_insn_bits;
1673 switch (this_board->board_type) {
1675 devpriv->ai_is16b = 1;
1679 devpriv->max_812_ai_mode0_rangewait = 1;
1680 if (it->options[3] > 0)
1681 /* we use external trigger */
1682 devpriv->use_ext_trg = 1;
1684 devpriv->max_812_ai_mode0_rangewait = 1;
1685 devpriv->mode_reg_int = (irq << 4) & 0xf0;
1691 /* maybe there must by greatest timeout */
1692 devpriv->max_812_ai_mode0_rangewait = 5;
1696 printk(KERN_INFO "\n");
1705 ==============================================================================
1707 static int pcl812_detach(struct comedi_device *dev)
1710 #ifdef PCL812_EXTDEBUG
1711 printk(KERN_DEBUG "comedi%d: pcl812: remove\n", dev->minor);
1713 free_resources(dev);
1717 MODULE_AUTHOR("Comedi http://www.comedi.org");
1718 MODULE_DESCRIPTION("Comedi low-level driver");
1719 MODULE_LICENSE("GPL");