2 comedi/drivers/ni_atmio16d.c
3 Hardware driver for National Instruments AT-MIO16D board
4 Copyright (C) 2000 Chris R. Baugher <baugher@enteract.com>
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 Description: National Instruments AT-MIO-16D
24 Author: Chris R. Baugher <baugher@enteract.com>
26 Devices: [National Instruments] AT-MIO-16 (atmio16), AT-MIO-16D (atmio16d)
29 * I must give credit here to Michal Dobes <dobes@tesnet.cz> who
30 * wrote the driver for Advantec's pcl812 boards. I used the interrupt
31 * handling code from his driver as an example for this one.
38 #include <linux/interrupt.h>
39 #include "../comedidev.h"
41 #include <linux/ioport.h>
45 /* Configuration and Status Registers */
46 #define COM_REG_1 0x00 /* wo 16 */
47 #define STAT_REG 0x00 /* ro 16 */
48 #define COM_REG_2 0x02 /* wo 16 */
49 /* Event Strobe Registers */
50 #define START_CONVERT_REG 0x08 /* wo 16 */
51 #define START_DAQ_REG 0x0A /* wo 16 */
52 #define AD_CLEAR_REG 0x0C /* wo 16 */
53 #define EXT_STROBE_REG 0x0E /* wo 16 */
54 /* Analog Output Registers */
55 #define DAC0_REG 0x10 /* wo 16 */
56 #define DAC1_REG 0x12 /* wo 16 */
57 #define INT2CLR_REG 0x14 /* wo 16 */
58 /* Analog Input Registers */
59 #define MUX_CNTR_REG 0x04 /* wo 16 */
60 #define MUX_GAIN_REG 0x06 /* wo 16 */
61 #define AD_FIFO_REG 0x16 /* ro 16 */
62 #define DMA_TC_INT_CLR_REG 0x16 /* wo 16 */
63 /* AM9513A Counter/Timer Registers */
64 #define AM9513A_DATA_REG 0x18 /* rw 16 */
65 #define AM9513A_COM_REG 0x1A /* wo 16 */
66 #define AM9513A_STAT_REG 0x1A /* ro 16 */
67 /* MIO-16 Digital I/O Registers */
68 #define MIO_16_DIG_IN_REG 0x1C /* ro 16 */
69 #define MIO_16_DIG_OUT_REG 0x1C /* wo 16 */
70 /* RTSI Switch Registers */
71 #define RTSI_SW_SHIFT_REG 0x1E /* wo 8 */
72 #define RTSI_SW_STROBE_REG 0x1F /* wo 8 */
73 /* DIO-24 Registers */
74 #define DIO_24_PORTA_REG 0x00 /* rw 8 */
75 #define DIO_24_PORTB_REG 0x01 /* rw 8 */
76 #define DIO_24_PORTC_REG 0x02 /* rw 8 */
77 #define DIO_24_CNFG_REG 0x03 /* wo 8 */
79 /* Command Register bits */
80 #define COMREG1_2SCADC 0x0001
81 #define COMREG1_1632CNT 0x0002
82 #define COMREG1_SCANEN 0x0008
83 #define COMREG1_DAQEN 0x0010
84 #define COMREG1_DMAEN 0x0020
85 #define COMREG1_CONVINTEN 0x0080
86 #define COMREG2_SCN2 0x0010
87 #define COMREG2_INTEN 0x0080
88 #define COMREG2_DOUTEN0 0x0100
89 #define COMREG2_DOUTEN1 0x0200
90 /* Status Register bits */
91 #define STAT_AD_OVERRUN 0x0100
92 #define STAT_AD_OVERFLOW 0x0200
93 #define STAT_AD_DAQPROG 0x0800
94 #define STAT_AD_CONVAVAIL 0x2000
95 #define STAT_AD_DAQSTOPINT 0x4000
96 /* AM9513A Counter/Timer defines */
97 #define CLOCK_1_MHZ 0x8B25
98 #define CLOCK_100_KHZ 0x8C25
99 #define CLOCK_10_KHZ 0x8D25
100 #define CLOCK_1_KHZ 0x8E25
101 #define CLOCK_100_HZ 0x8F25
102 /* Other miscellaneous defines */
103 #define ATMIO16D_SIZE 32 /* bus address range */
104 #define devpriv ((struct atmio16d_private *)dev->private)
105 #define ATMIO16D_TIMEOUT 10
107 struct atmio16_board_t {
113 static const struct atmio16_board_t atmio16_boards[] = {
124 #define n_atmio16_boards ARRAY_SIZE(atmio16_boards)
126 #define boardtype ((const struct atmio16_board_t *)dev->board_ptr)
128 /* function prototypes */
129 static int atmio16d_attach(struct comedi_device *dev,
130 struct comedi_devconfig *it);
131 static int atmio16d_detach(struct comedi_device *dev);
132 static irqreturn_t atmio16d_interrupt(int irq, void *d);
133 static int atmio16d_ai_cmdtest(struct comedi_device *dev,
134 struct comedi_subdevice *s,
135 struct comedi_cmd *cmd);
136 static int atmio16d_ai_cmd(struct comedi_device *dev,
137 struct comedi_subdevice *s);
138 static int atmio16d_ai_cancel(struct comedi_device *dev,
139 struct comedi_subdevice *s);
140 static void reset_counters(struct comedi_device *dev);
141 static void reset_atmio16d(struct comedi_device *dev);
143 /* main driver struct */
144 static struct comedi_driver driver_atmio16d = {
145 .driver_name = "atmio16",
146 .module = THIS_MODULE,
147 .attach = atmio16d_attach,
148 .detach = atmio16d_detach,
149 .board_name = &atmio16_boards[0].name,
150 .num_names = n_atmio16_boards,
151 .offset = sizeof(struct atmio16_board_t),
154 COMEDI_INITCLEANUP(driver_atmio16d);
157 static const struct comedi_lrange range_atmio16d_ai_10_bipolar = { 4, {
169 static const struct comedi_lrange range_atmio16d_ai_5_bipolar = { 4, {
181 static const struct comedi_lrange range_atmio16d_ai_unipolar = { 4, {
193 /* private data struct */
194 struct atmio16d_private {
195 enum { adc_diff, adc_singleended } adc_mux;
196 enum { adc_bipolar10, adc_bipolar5, adc_unipolar10 } adc_range;
197 enum { adc_2comp, adc_straight } adc_coding;
198 enum { dac_bipolar, dac_unipolar } dac0_range, dac1_range;
199 enum { dac_internal, dac_external } dac0_reference, dac1_reference;
200 enum { dac_2comp, dac_straight } dac0_coding, dac1_coding;
201 const struct comedi_lrange *ao_range_type_list[2];
202 unsigned int ao_readback[2];
203 unsigned int com_reg_1_state; /* current state of command register 1 */
204 unsigned int com_reg_2_state; /* current state of command register 2 */
207 static void reset_counters(struct comedi_device *dev)
210 outw(0xFFC2, dev->iobase + AM9513A_COM_REG);
211 outw(0xFF02, dev->iobase + AM9513A_COM_REG);
212 outw(0x4, dev->iobase + AM9513A_DATA_REG);
213 outw(0xFF0A, dev->iobase + AM9513A_COM_REG);
214 outw(0x3, dev->iobase + AM9513A_DATA_REG);
215 outw(0xFF42, dev->iobase + AM9513A_COM_REG);
216 outw(0xFF42, dev->iobase + AM9513A_COM_REG);
218 outw(0xFFC4, dev->iobase + AM9513A_COM_REG);
219 outw(0xFF03, dev->iobase + AM9513A_COM_REG);
220 outw(0x4, dev->iobase + AM9513A_DATA_REG);
221 outw(0xFF0B, dev->iobase + AM9513A_COM_REG);
222 outw(0x3, dev->iobase + AM9513A_DATA_REG);
223 outw(0xFF44, dev->iobase + AM9513A_COM_REG);
224 outw(0xFF44, dev->iobase + AM9513A_COM_REG);
226 outw(0xFFC8, dev->iobase + AM9513A_COM_REG);
227 outw(0xFF04, dev->iobase + AM9513A_COM_REG);
228 outw(0x4, dev->iobase + AM9513A_DATA_REG);
229 outw(0xFF0C, dev->iobase + AM9513A_COM_REG);
230 outw(0x3, dev->iobase + AM9513A_DATA_REG);
231 outw(0xFF48, dev->iobase + AM9513A_COM_REG);
232 outw(0xFF48, dev->iobase + AM9513A_COM_REG);
234 outw(0xFFD0, dev->iobase + AM9513A_COM_REG);
235 outw(0xFF05, dev->iobase + AM9513A_COM_REG);
236 outw(0x4, dev->iobase + AM9513A_DATA_REG);
237 outw(0xFF0D, dev->iobase + AM9513A_COM_REG);
238 outw(0x3, dev->iobase + AM9513A_DATA_REG);
239 outw(0xFF50, dev->iobase + AM9513A_COM_REG);
240 outw(0xFF50, dev->iobase + AM9513A_COM_REG);
242 outw(0, dev->iobase + AD_CLEAR_REG);
245 static void reset_atmio16d(struct comedi_device *dev)
249 /* now we need to initialize the board */
250 outw(0, dev->iobase + COM_REG_1);
251 outw(0, dev->iobase + COM_REG_2);
252 outw(0, dev->iobase + MUX_GAIN_REG);
253 /* init AM9513A timer */
254 outw(0xFFFF, dev->iobase + AM9513A_COM_REG);
255 outw(0xFFEF, dev->iobase + AM9513A_COM_REG);
256 outw(0xFF17, dev->iobase + AM9513A_COM_REG);
257 outw(0xF000, dev->iobase + AM9513A_DATA_REG);
258 for (i = 1; i <= 5; ++i) {
259 outw(0xFF00 + i, dev->iobase + AM9513A_COM_REG);
260 outw(0x0004, dev->iobase + AM9513A_DATA_REG);
261 outw(0xFF08 + i, dev->iobase + AM9513A_COM_REG);
262 outw(0x3, dev->iobase + AM9513A_DATA_REG);
264 outw(0xFF5F, dev->iobase + AM9513A_COM_REG);
265 /* timer init done */
266 outw(0, dev->iobase + AD_CLEAR_REG);
267 outw(0, dev->iobase + INT2CLR_REG);
268 /* select straight binary mode for Analog Input */
269 devpriv->com_reg_1_state |= 1;
270 outw(devpriv->com_reg_1_state, dev->iobase + COM_REG_1);
271 devpriv->adc_coding = adc_straight;
272 /* zero the analog outputs */
273 outw(2048, dev->iobase + DAC0_REG);
274 outw(2048, dev->iobase + DAC1_REG);
277 static irqreturn_t atmio16d_interrupt(int irq, void *d)
279 struct comedi_device *dev = d;
280 struct comedi_subdevice *s = dev->subdevices + 0;
283 printk(KERN_DEBUG "atmio16d_interrupt!\n");
286 comedi_buf_put(s->async, inw(dev->iobase + AD_FIFO_REG));
288 comedi_event(dev, s);
292 static int atmio16d_ai_cmdtest(struct comedi_device *dev,
293 struct comedi_subdevice *s,
294 struct comedi_cmd *cmd)
298 printk(KERN_DEBUG "atmio16d_ai_cmdtest\n");
300 /* make sure triggers are valid */
301 tmp = cmd->start_src;
302 cmd->start_src &= TRIG_NOW;
303 if (!cmd->start_src || tmp != cmd->start_src)
306 tmp = cmd->scan_begin_src;
307 cmd->scan_begin_src &= TRIG_FOLLOW | TRIG_TIMER;
308 if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
311 tmp = cmd->convert_src;
312 cmd->convert_src &= TRIG_TIMER;
313 if (!cmd->convert_src || tmp != cmd->convert_src)
316 tmp = cmd->scan_end_src;
317 cmd->scan_end_src &= TRIG_COUNT;
318 if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
322 cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
323 if (!cmd->stop_src || tmp != cmd->stop_src)
329 /* step 2: make sure trigger sources are unique & mutually compatible */
330 /* note that mutual compatibility is not an issue here */
331 if (cmd->scan_begin_src != TRIG_FOLLOW &&
332 cmd->scan_begin_src != TRIG_EXT &&
333 cmd->scan_begin_src != TRIG_TIMER)
335 if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
341 /* step 3: make sure arguments are trivially compatible */
343 if (cmd->start_arg != 0) {
347 if (cmd->scan_begin_src == TRIG_FOLLOW) {
348 /* internal trigger */
349 if (cmd->scan_begin_arg != 0) {
350 cmd->scan_begin_arg = 0;
355 /* external trigger */
356 /* should be level/edge, hi/lo specification here */
357 if (cmd->scan_begin_arg != 0) {
358 cmd->scan_begin_arg = 0;
364 if (cmd->convert_arg < 10000) {
365 cmd->convert_arg = 10000;
369 if (cmd->convert_arg > SLOWEST_TIMER) {
370 cmd->convert_arg = SLOWEST_TIMER;
374 if (cmd->scan_end_arg != cmd->chanlist_len) {
375 cmd->scan_end_arg = cmd->chanlist_len;
378 if (cmd->stop_src == TRIG_COUNT) {
379 /* any count is allowed */
382 if (cmd->stop_arg != 0) {
394 static int atmio16d_ai_cmd(struct comedi_device *dev,
395 struct comedi_subdevice *s)
397 struct comedi_cmd *cmd = &s->async->cmd;
398 unsigned int timer, base_clock;
399 unsigned int sample_count, tmp, chan, gain;
402 printk(KERN_DEBUG "atmio16d_ai_cmd\n");
404 /* This is slowly becoming a working command interface. *
405 * It is still uber-experimental */
408 s->async->cur_chan = 0;
410 /* check if scanning multiple channels */
411 if (cmd->chanlist_len < 2) {
412 devpriv->com_reg_1_state &= ~COMREG1_SCANEN;
413 outw(devpriv->com_reg_1_state, dev->iobase + COM_REG_1);
415 devpriv->com_reg_1_state |= COMREG1_SCANEN;
416 devpriv->com_reg_2_state |= COMREG2_SCN2;
417 outw(devpriv->com_reg_1_state, dev->iobase + COM_REG_1);
418 outw(devpriv->com_reg_2_state, dev->iobase + COM_REG_2);
421 /* Setup the Mux-Gain Counter */
422 for (i = 0; i < cmd->chanlist_len; ++i) {
423 chan = CR_CHAN(cmd->chanlist[i]);
424 gain = CR_RANGE(cmd->chanlist[i]);
425 outw(i, dev->iobase + MUX_CNTR_REG);
426 tmp = chan | (gain << 6);
427 if (i == cmd->scan_end_arg - 1)
428 tmp |= 0x0010; /* set LASTONE bit */
429 outw(tmp, dev->iobase + MUX_GAIN_REG);
432 /* Now program the sample interval timer */
433 /* Figure out which clock to use then get an
434 * appropriate timer value */
435 if (cmd->convert_arg < 65536000) {
436 base_clock = CLOCK_1_MHZ;
437 timer = cmd->convert_arg / 1000;
438 } else if (cmd->convert_arg < 655360000) {
439 base_clock = CLOCK_100_KHZ;
440 timer = cmd->convert_arg / 10000;
441 } else if (cmd->convert_arg <= 0xffffffff /* 6553600000 */) {
442 base_clock = CLOCK_10_KHZ;
443 timer = cmd->convert_arg / 100000;
444 } else if (cmd->convert_arg <= 0xffffffff /* 65536000000 */) {
445 base_clock = CLOCK_1_KHZ;
446 timer = cmd->convert_arg / 1000000;
448 outw(0xFF03, dev->iobase + AM9513A_COM_REG);
449 outw(base_clock, dev->iobase + AM9513A_DATA_REG);
450 outw(0xFF0B, dev->iobase + AM9513A_COM_REG);
451 outw(0x2, dev->iobase + AM9513A_DATA_REG);
452 outw(0xFF44, dev->iobase + AM9513A_COM_REG);
453 outw(0xFFF3, dev->iobase + AM9513A_COM_REG);
454 outw(timer, dev->iobase + AM9513A_DATA_REG);
455 outw(0xFF24, dev->iobase + AM9513A_COM_REG);
457 /* Now figure out how many samples to get */
458 /* and program the sample counter */
459 sample_count = cmd->stop_arg * cmd->scan_end_arg;
460 outw(0xFF04, dev->iobase + AM9513A_COM_REG);
461 outw(0x1025, dev->iobase + AM9513A_DATA_REG);
462 outw(0xFF0C, dev->iobase + AM9513A_COM_REG);
463 if (sample_count < 65536) {
464 /* use only Counter 4 */
465 outw(sample_count, dev->iobase + AM9513A_DATA_REG);
466 outw(0xFF48, dev->iobase + AM9513A_COM_REG);
467 outw(0xFFF4, dev->iobase + AM9513A_COM_REG);
468 outw(0xFF28, dev->iobase + AM9513A_COM_REG);
469 devpriv->com_reg_1_state &= ~COMREG1_1632CNT;
470 outw(devpriv->com_reg_1_state, dev->iobase + COM_REG_1);
472 /* Counter 4 and 5 are needed */
474 tmp = sample_count & 0xFFFF;
476 outw(tmp - 1, dev->iobase + AM9513A_DATA_REG);
478 outw(0xFFFF, dev->iobase + AM9513A_DATA_REG);
480 outw(0xFF48, dev->iobase + AM9513A_COM_REG);
481 outw(0, dev->iobase + AM9513A_DATA_REG);
482 outw(0xFF28, dev->iobase + AM9513A_COM_REG);
483 outw(0xFF05, dev->iobase + AM9513A_COM_REG);
484 outw(0x25, dev->iobase + AM9513A_DATA_REG);
485 outw(0xFF0D, dev->iobase + AM9513A_COM_REG);
486 tmp = sample_count & 0xFFFF;
487 if ((tmp == 0) || (tmp == 1)) {
488 outw((sample_count >> 16) & 0xFFFF,
489 dev->iobase + AM9513A_DATA_REG);
491 outw(((sample_count >> 16) & 0xFFFF) + 1,
492 dev->iobase + AM9513A_DATA_REG);
494 outw(0xFF70, dev->iobase + AM9513A_COM_REG);
495 devpriv->com_reg_1_state |= COMREG1_1632CNT;
496 outw(devpriv->com_reg_1_state, dev->iobase + COM_REG_1);
499 /* Program the scan interval timer ONLY IF SCANNING IS ENABLED */
500 /* Figure out which clock to use then get an
501 * appropriate timer value */
502 if (cmd->chanlist_len > 1) {
503 if (cmd->scan_begin_arg < 65536000) {
504 base_clock = CLOCK_1_MHZ;
505 timer = cmd->scan_begin_arg / 1000;
506 } else if (cmd->scan_begin_arg < 655360000) {
507 base_clock = CLOCK_100_KHZ;
508 timer = cmd->scan_begin_arg / 10000;
509 } else if (cmd->scan_begin_arg < 0xffffffff /* 6553600000 */) {
510 base_clock = CLOCK_10_KHZ;
511 timer = cmd->scan_begin_arg / 100000;
512 } else if (cmd->scan_begin_arg < 0xffffffff /* 65536000000 */) {
513 base_clock = CLOCK_1_KHZ;
514 timer = cmd->scan_begin_arg / 1000000;
516 outw(0xFF02, dev->iobase + AM9513A_COM_REG);
517 outw(base_clock, dev->iobase + AM9513A_DATA_REG);
518 outw(0xFF0A, dev->iobase + AM9513A_COM_REG);
519 outw(0x2, dev->iobase + AM9513A_DATA_REG);
520 outw(0xFF42, dev->iobase + AM9513A_COM_REG);
521 outw(0xFFF2, dev->iobase + AM9513A_COM_REG);
522 outw(timer, dev->iobase + AM9513A_DATA_REG);
523 outw(0xFF22, dev->iobase + AM9513A_COM_REG);
526 /* Clear the A/D FIFO and reset the MUX counter */
527 outw(0, dev->iobase + AD_CLEAR_REG);
528 outw(0, dev->iobase + MUX_CNTR_REG);
529 outw(0, dev->iobase + INT2CLR_REG);
530 /* enable this acquisition operation */
531 devpriv->com_reg_1_state |= COMREG1_DAQEN;
532 outw(devpriv->com_reg_1_state, dev->iobase + COM_REG_1);
533 /* enable interrupts for conversion completion */
534 devpriv->com_reg_1_state |= COMREG1_CONVINTEN;
535 devpriv->com_reg_2_state |= COMREG2_INTEN;
536 outw(devpriv->com_reg_1_state, dev->iobase + COM_REG_1);
537 outw(devpriv->com_reg_2_state, dev->iobase + COM_REG_2);
538 /* apply a trigger. this starts the counters! */
539 outw(0, dev->iobase + START_DAQ_REG);
544 /* This will cancel a running acquisition operation */
545 static int atmio16d_ai_cancel(struct comedi_device *dev,
546 struct comedi_subdevice *s)
553 /* Mode 0 is used to get a single conversion on demand */
554 static int atmio16d_ai_insn_read(struct comedi_device *dev,
555 struct comedi_subdevice *s,
556 struct comedi_insn *insn, unsigned int *data)
564 printk(KERN_DEBUG "atmio16d_ai_insn_read\n");
566 chan = CR_CHAN(insn->chanspec);
567 gain = CR_RANGE(insn->chanspec);
569 /* reset the Analog input circuitry */
570 /* outw( 0, dev->iobase+AD_CLEAR_REG ); */
571 /* reset the Analog Input MUX Counter to 0 */
572 /* outw( 0, dev->iobase+MUX_CNTR_REG ); */
574 /* set the Input MUX gain */
575 outw(chan | (gain << 6), dev->iobase + MUX_GAIN_REG);
577 for (i = 0; i < insn->n; i++) {
578 /* start the conversion */
579 outw(0, dev->iobase + START_CONVERT_REG);
580 /* wait for it to finish */
581 for (t = 0; t < ATMIO16D_TIMEOUT; t++) {
582 /* check conversion status */
583 status = inw(dev->iobase + STAT_REG);
585 printk(KERN_DEBUG "status=%x\n", status);
587 if (status & STAT_AD_CONVAVAIL) {
588 /* read the data now */
589 data[i] = inw(dev->iobase + AD_FIFO_REG);
590 /* change to two's complement if need be */
591 if (devpriv->adc_coding == adc_2comp)
595 if (status & STAT_AD_OVERFLOW) {
596 printk(KERN_INFO "atmio16d: a/d FIFO overflow\n");
597 outw(0, dev->iobase + AD_CLEAR_REG);
602 /* end waiting, now check if it timed out */
603 if (t == ATMIO16D_TIMEOUT) {
604 printk(KERN_INFO "atmio16d: timeout\n");
613 static int atmio16d_ao_insn_read(struct comedi_device *dev,
614 struct comedi_subdevice *s,
615 struct comedi_insn *insn, unsigned int *data)
619 printk(KERN_DEBUG "atmio16d_ao_insn_read\n");
622 for (i = 0; i < insn->n; i++)
623 data[i] = devpriv->ao_readback[CR_CHAN(insn->chanspec)];
627 static int atmio16d_ao_insn_write(struct comedi_device *dev,
628 struct comedi_subdevice *s,
629 struct comedi_insn *insn, unsigned int *data)
635 printk(KERN_DEBUG "atmio16d_ao_insn_write\n");
638 chan = CR_CHAN(insn->chanspec);
640 for (i = 0; i < insn->n; i++) {
644 if (devpriv->dac0_coding == dac_2comp)
646 outw(d, dev->iobase + DAC0_REG);
649 if (devpriv->dac1_coding == dac_2comp)
651 outw(d, dev->iobase + DAC1_REG);
656 devpriv->ao_readback[chan] = data[i];
661 static int atmio16d_dio_insn_bits(struct comedi_device *dev,
662 struct comedi_subdevice *s,
663 struct comedi_insn *insn, unsigned int *data)
669 s->state &= ~data[0];
670 s->state |= (data[0] | data[1]);
671 outw(s->state, dev->iobase + MIO_16_DIG_OUT_REG);
673 data[1] = inw(dev->iobase + MIO_16_DIG_IN_REG);
678 static int atmio16d_dio_insn_config(struct comedi_device *dev,
679 struct comedi_subdevice *s,
680 struct comedi_insn *insn,
686 for (i = 0; i < insn->n; i++) {
687 mask = (CR_CHAN(insn->chanspec) < 4) ? 0x0f : 0xf0;
692 devpriv->com_reg_2_state &= ~(COMREG2_DOUTEN0 | COMREG2_DOUTEN1);
693 if (s->io_bits & 0x0f)
694 devpriv->com_reg_2_state |= COMREG2_DOUTEN0;
695 if (s->io_bits & 0xf0)
696 devpriv->com_reg_2_state |= COMREG2_DOUTEN1;
697 outw(devpriv->com_reg_2_state, dev->iobase + COM_REG_2);
703 options[0] - I/O port
706 N == irq N {3,4,5,6,7,9,10,11,12,14,15}
709 N == irq N {3,4,5,6,7,9}
710 options[3] - DMA1 channel
713 options[4] - DMA2 channel
718 0=differential, 1=single
719 options[6] - a/d range
720 0=bipolar10, 1=bipolar5, 2=unipolar10
722 options[7] - dac0 range
723 0=bipolar, 1=unipolar
724 options[8] - dac0 reference
725 0=internal, 1=external
726 options[9] - dac0 coding
727 0=2's comp, 1=straight binary
729 options[10] - dac1 range
730 options[11] - dac1 reference
731 options[12] - dac1 coding
734 static int atmio16d_attach(struct comedi_device *dev,
735 struct comedi_devconfig *it)
738 unsigned long iobase;
741 struct comedi_subdevice *s;
743 /* make sure the address range is free and allocate it */
744 iobase = it->options[0];
745 printk(KERN_INFO "comedi%d: atmio16d: 0x%04lx ", dev->minor, iobase);
746 if (!request_region(iobase, ATMIO16D_SIZE, "ni_atmio16d")) {
747 printk("I/O port conflict\n");
750 dev->iobase = iobase;
753 dev->board_name = boardtype->name;
755 ret = alloc_subdevices(dev, 4);
759 ret = alloc_private(dev, sizeof(struct atmio16d_private));
763 /* reset the atmio16d hardware */
766 /* check if our interrupt is available and get it */
767 irq = it->options[1];
770 ret = request_irq(irq, atmio16d_interrupt, 0, "atmio16d", dev);
772 printk(KERN_INFO "failed to allocate irq %u\n", irq);
776 printk(KERN_INFO "( irq = %u )\n", irq);
778 printk(KERN_INFO "( no irq )");
781 /* set device options */
782 devpriv->adc_mux = it->options[5];
783 devpriv->adc_range = it->options[6];
785 devpriv->dac0_range = it->options[7];
786 devpriv->dac0_reference = it->options[8];
787 devpriv->dac0_coding = it->options[9];
788 devpriv->dac1_range = it->options[10];
789 devpriv->dac1_reference = it->options[11];
790 devpriv->dac1_coding = it->options[12];
792 /* setup sub-devices */
793 s = dev->subdevices + 0;
794 dev->read_subdev = s;
796 s->type = COMEDI_SUBD_AI;
797 s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_CMD_READ;
798 s->n_chan = (devpriv->adc_mux ? 16 : 8);
799 s->len_chanlist = 16;
800 s->insn_read = atmio16d_ai_insn_read;
801 s->do_cmdtest = atmio16d_ai_cmdtest;
802 s->do_cmd = atmio16d_ai_cmd;
803 s->cancel = atmio16d_ai_cancel;
804 s->maxdata = 0xfff; /* 4095 decimal */
805 switch (devpriv->adc_range) {
807 s->range_table = &range_atmio16d_ai_10_bipolar;
810 s->range_table = &range_atmio16d_ai_5_bipolar;
813 s->range_table = &range_atmio16d_ai_unipolar;
819 s->type = COMEDI_SUBD_AO;
820 s->subdev_flags = SDF_WRITABLE;
822 s->insn_read = atmio16d_ao_insn_read;
823 s->insn_write = atmio16d_ao_insn_write;
824 s->maxdata = 0xfff; /* 4095 decimal */
825 s->range_table_list = devpriv->ao_range_type_list;
826 switch (devpriv->dac0_range) {
828 devpriv->ao_range_type_list[0] = &range_bipolar10;
831 devpriv->ao_range_type_list[0] = &range_unipolar10;
834 switch (devpriv->dac1_range) {
836 devpriv->ao_range_type_list[1] = &range_bipolar10;
839 devpriv->ao_range_type_list[1] = &range_unipolar10;
845 s->type = COMEDI_SUBD_DIO;
846 s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
848 s->insn_bits = atmio16d_dio_insn_bits;
849 s->insn_config = atmio16d_dio_insn_config;
851 s->range_table = &range_digital;
855 if (boardtype->has_8255)
856 subdev_8255_init(dev, s, NULL, dev->iobase);
858 s->type = COMEDI_SUBD_UNUSED;
860 /* don't yet know how to deal with counter/timers */
864 s->type = COMEDI_SUBD_TIMER;
873 static int atmio16d_detach(struct comedi_device *dev)
875 printk(KERN_INFO "comedi%d: atmio16d: remove\n", dev->minor);
877 if (dev->subdevices && boardtype->has_8255)
878 subdev_8255_cleanup(dev, dev->subdevices + 3);
881 free_irq(dev->irq, dev);
886 release_region(dev->iobase, ATMIO16D_SIZE);