drivers/staging/comedi/drivers/das16.c

   1 /*
   2     comedi/drivers/das16.c
   3     DAS16 driver
   4
   5     COMEDI - Linux Control and Measurement Device Interface
   6     Copyright (C) 2000 David A. Schleef <ds@schleef.org>
   7     Copyright (C) 2000 Chris R. Baugher <baugher@enteract.com>
   8     Copyright (C) 2001,2002 Frank Mori Hess <fmhess@users.sourceforge.net>
   9
  10     This program is free software; you can redistribute it and/or modify
  11     it under the terms of the GNU General Public License as published by
  12     the Free Software Foundation; either version 2 of the License, or
  13     (at your option) any later version.
  14
  15     This program is distributed in the hope that it will be useful,
  16     but WITHOUT ANY WARRANTY; without even the implied warranty of
  17     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18     GNU General Public License for more details.
  19 */
  20 /*
  21 Driver: das16
  22 Description: DAS16 compatible boards
  23 Author: Sam Moore, Warren Jasper, ds, Chris Baugher, Frank Hess, Roman Fietze
  24 Devices: [Keithley Metrabyte] DAS-16 (das-16), DAS-16G (das-16g),
  25   DAS-16F (das-16f), DAS-1201 (das-1201), DAS-1202 (das-1202),
  26   DAS-1401 (das-1401), DAS-1402 (das-1402), DAS-1601 (das-1601),
  27   DAS-1602 (das-1602),
  28   [ComputerBoards] PC104-DAS16/JR (pc104-das16jr),
  29   PC104-DAS16JR/16 (pc104-das16jr/16),
  30   CIO-DAS16JR/16 (cio-das16jr/16),
  31   CIO-DAS16/JR (cio-das16/jr), CIO-DAS1401/12 (cio-das1401/12),
  32   CIO-DAS1402/12 (cio-das1402/12), CIO-DAS1402/16 (cio-das1402/16),
  33   CIO-DAS1601/12 (cio-das1601/12), CIO-DAS1602/12 (cio-das1602/12),
  34   CIO-DAS1602/16 (cio-das1602/16), CIO-DAS16/330 (cio-das16/330)
  35 Status: works
  36 Updated: 2003-10-12
  37
  38 A rewrite of the das16 and das1600 drivers.
  39 Options:
  40         [0] - base io address
  41         [1] - irq (does nothing, irq is not used anymore)
  42         [2] - dma (optional, required for comedi_command support)
  43         [3] - master clock speed in MHz (optional, 1 or 10, ignored if
  44                 board can probe clock, defaults to 1)
  45         [4] - analog input range lowest voltage in microvolts (optional,
  46                 only useful if your board does not have software
  47                 programmable gain)
  48         [5] - analog input range highest voltage in microvolts (optional,
  49                 only useful if board does not have software programmable
  50                 gain)
  51         [6] - analog output range lowest voltage in microvolts (optional)
  52         [7] - analog output range highest voltage in microvolts (optional)
  53         [8] - use timer mode for DMA.  Timer mode is needed e.g. for
  54                 buggy DMA controllers in NS CS5530A (Geode Companion), and for
  55                 'jr' cards that lack a hardware fifo.  This option is no
  56                 longer needed, since timer mode is _always_ used.
  57
  58 Passing a zero for an option is the same as leaving it unspecified.
  59
  60 */
  61 /*
  62
  63 Testing and debugging help provided by Daniel Koch.
  64
  65 Keithley Manuals:
  66         2309.PDF (das16)
  67         4919.PDF (das1400, 1600)
  68         4922.PDF (das-1400)
  69         4923.PDF (das1200, 1400, 1600)
  70
  71 Computer boards manuals also available from their website
  72 www.measurementcomputing.com
  73
  74 */
  75
  76 #include <linux/module.h>
  77 #include <linux/delay.h>
  78 #include <linux/pci.h>
  79 #include <linux/interrupt.h>
  80
  81 #include <asm/dma.h>
  82
  83 #include "../comedidev.h"
  84
  85 #include "8253.h"
  86 #include "8255.h"
  87 #include "comedi_fc.h"
  88
  89 #undef DEBUG
  90 /* #define DEBUG */
  91
  92 #ifdef DEBUG
  93 #define DEBUG_PRINT(format, args...)    \
  94         printk(KERN_DEBUG "das16: " format, ## args)
  95 #else
  96 #define DEBUG_PRINT(format, args...)
  97 #endif
  98
  99 #define DAS16_SIZE 20           /*  number of ioports */
 100 #define DAS16_DMA_SIZE 0xff00   /*  size in bytes of allocated dma buffer */
 101
 102 /*
 103     cio-das16.pdf
 104
 105     "das16"
 106     "das16/f"
 107
 108   0     a/d bits 0-3            start 12 bit
 109   1     a/d bits 4-11           unused
 110   2     mux read                mux set
 111   3     di 4 bit                do 4 bit
 112   4     unused                  ao0_lsb
 113   5     unused                  ao0_msb
 114   6     unused                  ao1_lsb
 115   7     unused                  ao1_msb
 116   8     status eoc uni/bip      interrupt reset
 117   9     dma, int, trig ctrl     set dma, int
 118   a     pacer control           unused
 119   b     reserved                reserved
 120   cdef  8254
 121   0123  8255
 122
 123 */
 124
 125 /*
 126     cio-das16jr.pdf
 127
 128     "das16jr"
 129
 130   0     a/d bits 0-3            start 12 bit
 131   1     a/d bits 4-11           unused
 132   2     mux read                mux set
 133   3     di 4 bit                do 4 bit
 134   4567  unused                  unused
 135   8     status eoc uni/bip      interrupt reset
 136   9     dma, int, trig ctrl     set dma, int
 137   a     pacer control           unused
 138   b     gain status             gain control
 139   cdef  8254
 140
 141 */
 142
 143 /*
 144     cio-das16jr_16.pdf
 145
 146     "das16jr_16"
 147
 148   0     a/d bits 0-7            start 16 bit
 149   1     a/d bits 8-15           unused
 150   2     mux read                mux set
 151   3     di 4 bit                do 4 bit
 152   4567  unused                  unused
 153   8     status eoc uni/bip      interrupt reset
 154   9     dma, int, trig ctrl     set dma, int
 155   a     pacer control           unused
 156   b     gain status             gain control
 157   cdef  8254
 158
 159 */
 160 /*
 161     cio-das160x-1x.pdf
 162
 163     "das1601/12"
 164     "das1602/12"
 165     "das1602/16"
 166
 167   0     a/d bits 0-3            start 12 bit
 168   1     a/d bits 4-11           unused
 169   2     mux read                mux set
 170   3     di 4 bit                do 4 bit
 171   4     unused                  ao0_lsb
 172   5     unused                  ao0_msb
 173   6     unused                  ao1_lsb
 174   7     unused                  ao1_msb
 175   8     status eoc uni/bip      interrupt reset
 176   9     dma, int, trig ctrl     set dma, int
 177   a     pacer control           unused
 178   b     gain status             gain control
 179   cdef  8254
 180   400   8255
 181   404   unused                  conversion enable
 182   405   unused                  burst enable
 183   406   unused                  das1600 enable
 184   407   status
 185
 186 */
 187
 188 /*  size in bytes of a sample from board */
 189 static const int sample_size = 2;
 190
 191 #define DAS16_TRIG              0
 192 #define DAS16_AI_LSB            0
 193 #define DAS16_AI_MSB            1
 194 #define DAS16_MUX               2
 195 #define DAS16_DIO               3
 196 #define DAS16_AO_LSB(x) ((x) ? 6 : 4)
 197 #define DAS16_AO_MSB(x) ((x) ? 7 : 5)
 198 #define DAS16_STATUS            8
 199 #define   BUSY                  (1<<7)
 200 #define   UNIPOLAR                      (1<<6)
 201 #define   DAS16_MUXBIT                  (1<<5)
 202 #define   DAS16_INT                     (1<<4)
 203 #define DAS16_CONTROL           9
 204 #define   DAS16_INTE                    (1<<7)
 205 #define   DAS16_IRQ(x)                  (((x) & 0x7) << 4)
 206 #define   DMA_ENABLE                    (1<<2)
 207 #define   PACING_MASK   0x3
 208 #define   INT_PACER             0x03
 209 #define   EXT_PACER                     0x02
 210 #define   DAS16_SOFT            0x00
 211 #define DAS16_PACER             0x0A
 212 #define   DAS16_CTR0                    (1<<1)
 213 #define   DAS16_TRIG0                   (1<<0)
 214 #define   BURST_LEN_BITS(x)                     (((x) & 0xf) << 4)
 215 #define DAS16_GAIN              0x0B
 216 #define DAS16_CNTR0_DATA                0x0C
 217 #define DAS16_CNTR1_DATA                0x0D
 218 #define DAS16_CNTR2_DATA                0x0E
 219 #define DAS16_CNTR_CONTROL      0x0F
 220 #define   DAS16_TERM_CNT        0x00
 221 #define   DAS16_ONE_SHOT        0x02
 222 #define   DAS16_RATE_GEN        0x04
 223 #define   DAS16_CNTR_LSB_MSB    0x30
 224 #define   DAS16_CNTR0           0x00
 225 #define   DAS16_CNTR1           0x40
 226 #define   DAS16_CNTR2           0x80
 227
 228 #define DAS1600_CONV            0x404
 229 #define   DAS1600_CONV_DISABLE          0x40
 230 #define DAS1600_BURST           0x405
 231 #define   DAS1600_BURST_VAL             0x40
 232 #define DAS1600_ENABLE          0x406
 233 #define   DAS1600_ENABLE_VAL            0x40
 234 #define DAS1600_STATUS_B        0x407
 235 #define   DAS1600_BME           0x40
 236 #define   DAS1600_ME            0x20
 237 #define   DAS1600_CD                    0x10
 238 #define   DAS1600_WS                    0x02
 239 #define   DAS1600_CLK_10MHZ             0x01
 240
 241 static const struct comedi_lrange range_das1x01_bip = { 4, {
 242                                                             BIP_RANGE(10),
 243                                                             BIP_RANGE(1),
 244                                                             BIP_RANGE(0.1),
 245                                                             BIP_RANGE(0.01),
 246                                                             }
 247 };
 248
 249 static const struct comedi_lrange range_das1x01_unip = { 4, {
 250                                                              UNI_RANGE(10),
 251                                                              UNI_RANGE(1),
 252                                                              UNI_RANGE(0.1),
 253                                                              UNI_RANGE(0.01),
 254                                                              }
 255 };
 256
 257 static const struct comedi_lrange range_das1x02_bip = { 4, {
 258                                                             BIP_RANGE(10),
 259                                                             BIP_RANGE(5),
 260                                                             BIP_RANGE(2.5),
 261                                                             BIP_RANGE(1.25),
 262                                                             }
 263 };
 264
 265 static const struct comedi_lrange range_das1x02_unip = { 4, {
 266                                                              UNI_RANGE(10),
 267                                                              UNI_RANGE(5),
 268                                                              UNI_RANGE(2.5),
 269                                                              UNI_RANGE(1.25),
 270                                                              }
 271 };
 272
 273 static const struct comedi_lrange range_das16jr = { 9, {
 274                                                 /*  also used by 16/330 */
 275                                                         BIP_RANGE(10),
 276                                                         BIP_RANGE(5),
 277                                                         BIP_RANGE(2.5),
 278                                                         BIP_RANGE(1.25),
 279                                                         BIP_RANGE(0.625),
 280                                                         UNI_RANGE(10),
 281                                                         UNI_RANGE(5),
 282                                                         UNI_RANGE(2.5),
 283                                                         UNI_RANGE(1.25),
 284                                                         }
 285 };
 286
 287 static const struct comedi_lrange range_das16jr_16 = { 8, {
 288                                                            BIP_RANGE(10),
 289                                                            BIP_RANGE(5),
 290                                                            BIP_RANGE(2.5),
 291                                                            BIP_RANGE(1.25),
 292                                                            UNI_RANGE(10),
 293                                                            UNI_RANGE(5),
 294                                                            UNI_RANGE(2.5),
 295                                                            UNI_RANGE(1.25),
 296                                                            }
 297 };
 298
 299 static const int das16jr_gainlist[] = { 8, 0, 1, 2, 3, 4, 5, 6, 7 };
 300 static const int das16jr_16_gainlist[] = { 0, 1, 2, 3, 4, 5, 6, 7 };
 301 static const int das1600_gainlist[] = { 0, 1, 2, 3 };
 302
 303 enum {
 304         das16_pg_none = 0,
 305         das16_pg_16jr,
 306         das16_pg_16jr_16,
 307         das16_pg_1601,
 308         das16_pg_1602,
 309 };
 310 static const int *const das16_gainlists[] = {
 311         NULL,
 312         das16jr_gainlist,
 313         das16jr_16_gainlist,
 314         das1600_gainlist,
 315         das1600_gainlist,
 316 };
 317
 318 static const struct comedi_lrange *const das16_ai_uni_lranges[] = {
 319         &range_unknown,
 320         &range_das16jr,
 321         &range_das16jr_16,
 322         &range_das1x01_unip,
 323         &range_das1x02_unip,
 324 };
 325
 326 static const struct comedi_lrange *const das16_ai_bip_lranges[] = {
 327         &range_unknown,
 328         &range_das16jr,
 329         &range_das16jr_16,
 330         &range_das1x01_bip,
 331         &range_das1x02_bip,
 332 };
 333
 334 struct munge_info {
 335         uint8_t byte;
 336         unsigned have_byte:1;
 337 };
 338
 339 struct das16_board {
 340         const char *name;
 341         unsigned int ai_maxdata;
 342         unsigned int ai_speed;  /*  max conversion speed in nanosec */
 343         unsigned int ai_pg;
 344         void *ao;
 345         unsigned int ao_nbits;
 346         void *di;
 347         void *do_;
 348
 349         unsigned int i8255_offset;
 350         unsigned int i8254_offset;
 351
 352         unsigned int size;
 353         unsigned int id;
 354 };
 355
 356 #define DAS16_TIMEOUT 1000
 357
 358 /* Period for timer interrupt in jiffies.  It's a function
 359  * to deal with possibility of dynamic HZ patches  */
 360 static inline int timer_period(void)
 361 {
 362         return HZ / 20;
 363 }
 364
 365 struct das16_private_struct {
 366         unsigned int ai_unipolar;       /*  unipolar flag */
 367         unsigned int ai_singleended;    /*  single ended flag */
 368         unsigned int clockbase; /*  master clock speed in ns */
 369         volatile unsigned int control_state;    /*  dma, interrupt and trigger control bits */
 370         volatile unsigned long adc_byte_count;  /*  number of bytes remaining */
 371         /*  divisor dividing master clock to get conversion frequency */
 372         unsigned int divisor1;
 373         /*  divisor dividing master clock to get conversion frequency */
 374         unsigned int divisor2;
 375         unsigned int dma_chan;  /*  dma channel */
 376         uint16_t *dma_buffer[2];
 377         dma_addr_t dma_buffer_addr[2];
 378         unsigned int current_buffer;
 379         volatile unsigned int dma_transfer_size;        /*  target number of bytes to transfer per dma shot */
 380         /**
 381          * user-defined analog input and output ranges
 382          * defined from config options
 383          */
 384         struct comedi_lrange *user_ai_range_table;
 385         struct comedi_lrange *user_ao_range_table;
 386
 387         struct timer_list timer;        /*  for timed interrupt */
 388         volatile short timer_running;
 389
 390         unsigned long extra_iobase;
 391 };
 392
 393 static int das16_cmd_test(struct comedi_device *dev, struct comedi_subdevice *s,
 394                           struct comedi_cmd *cmd)
 395 {
 396         const struct das16_board *board = comedi_board(dev);
 397         struct das16_private_struct *devpriv = dev->private;
 398         int err = 0, tmp;
 399         int gain, start_chan, i;
 400         int mask;
 401
 402         /* Step 1 : check if triggers are trivially valid */
 403
 404         err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
 405
 406         mask = TRIG_FOLLOW;
 407         /*  if board supports burst mode */
 408         if (board->size > 0x400)
 409                 mask |= TRIG_TIMER | TRIG_EXT;
 410         err |= cfc_check_trigger_src(&cmd->scan_begin_src, mask);
 411
 412         tmp = cmd->convert_src;
 413         mask = TRIG_TIMER | TRIG_EXT;
 414         /*  if board supports burst mode */
 415         if (board->size > 0x400)
 416                 mask |= TRIG_NOW;
 417         err |= cfc_check_trigger_src(&cmd->convert_src, mask);
 418
 419         err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
 420         err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 421
 422         if (err)
 423                 return 1;
 424
 425         /* Step 2a : make sure trigger sources are unique */
 426
 427         err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
 428         err |= cfc_check_trigger_is_unique(cmd->convert_src);
 429         err |= cfc_check_trigger_is_unique(cmd->stop_src);
 430
 431         /* Step 2b : and mutually compatible */
 432
 433         /*  make sure scan_begin_src and convert_src dont conflict */
 434         if (cmd->scan_begin_src == TRIG_FOLLOW && cmd->convert_src == TRIG_NOW)
 435                 err |= -EINVAL;
 436         if (cmd->scan_begin_src != TRIG_FOLLOW && cmd->convert_src != TRIG_NOW)
 437                 err |= -EINVAL;
 438
 439         if (err)
 440                 return 2;
 441
 442         /* Step 3: check if arguments are trivially valid */
 443
 444         err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
 445
 446         if (cmd->scan_begin_src == TRIG_FOLLOW) /* internal trigger */
 447                 err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
 448
 449         err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
 450
 451         /* check against maximum frequency */
 452         if (cmd->scan_begin_src == TRIG_TIMER)
 453                 err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
 454                                         board->ai_speed * cmd->chanlist_len);
 455
 456         if (cmd->convert_src == TRIG_TIMER)
 457                 err |= cfc_check_trigger_arg_min(&cmd->convert_arg,
 458                                                  board->ai_speed);
 459
 460         if (cmd->stop_src == TRIG_NONE)
 461                 err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
 462
 463         if (err)
 464                 return 3;
 465
 466         /*  step 4: fix up arguments */
 467         if (cmd->scan_begin_src == TRIG_TIMER) {
 468                 unsigned int tmp = cmd->scan_begin_arg;
 469                 /*  set divisors, correct timing arguments */
 470                 i8253_cascade_ns_to_timer_2div(devpriv->clockbase,
 471                                                &(devpriv->divisor1),
 472                                                &(devpriv->divisor2),
 473                                                &(cmd->scan_begin_arg),
 474                                                cmd->flags & TRIG_ROUND_MASK);
 475                 err += (tmp != cmd->scan_begin_arg);
 476         }
 477         if (cmd->convert_src == TRIG_TIMER) {
 478                 unsigned int tmp = cmd->convert_arg;
 479                 /*  set divisors, correct timing arguments */
 480                 i8253_cascade_ns_to_timer_2div(devpriv->clockbase,
 481                                                &(devpriv->divisor1),
 482                                                &(devpriv->divisor2),
 483                                                &(cmd->convert_arg),
 484                                                cmd->flags & TRIG_ROUND_MASK);
 485                 err += (tmp != cmd->convert_arg);
 486         }
 487         if (err)
 488                 return 4;
 489
 490         /*  check channel/gain list against card's limitations */
 491         if (cmd->chanlist) {
 492                 gain = CR_RANGE(cmd->chanlist[0]);
 493                 start_chan = CR_CHAN(cmd->chanlist[0]);
 494                 for (i = 1; i < cmd->chanlist_len; i++) {
 495                         if (CR_CHAN(cmd->chanlist[i]) !=
 496                             (start_chan + i) % s->n_chan) {
 497                                 comedi_error(dev,
 498                                                 "entries in chanlist must be "
 499                                                 "consecutive channels, "
 500                                                 "counting upwards\n");
 501                                 err++;
 502                         }
 503                         if (CR_RANGE(cmd->chanlist[i]) != gain) {
 504                                 comedi_error(dev,
 505                                                 "entries in chanlist must all "
 506                                                 "have the same gain\n");
 507                                 err++;
 508                         }
 509                 }
 510         }
 511         if (err)
 512                 return 5;
 513
 514         return 0;
 515 }
 516
 517 static unsigned int das16_set_pacer(struct comedi_device *dev, unsigned int ns,
 518                                     int rounding_flags)
 519 {
 520         struct das16_private_struct *devpriv = dev->private;
 521
 522         i8253_cascade_ns_to_timer_2div(devpriv->clockbase, &(devpriv->divisor1),
 523                                        &(devpriv->divisor2), &ns,
 524                                        rounding_flags & TRIG_ROUND_MASK);
 525
 526         /* Write the values of ctr1 and ctr2 into counters 1 and 2 */
 527         i8254_load(dev->iobase + DAS16_CNTR0_DATA, 0, 1, devpriv->divisor1, 2);
 528         i8254_load(dev->iobase + DAS16_CNTR0_DATA, 0, 2, devpriv->divisor2, 2);
 529
 530         return ns;
 531 }
 532
 533 static int das16_cmd_exec(struct comedi_device *dev, struct comedi_subdevice *s)
 534 {
 535         const struct das16_board *board = comedi_board(dev);
 536         struct das16_private_struct *devpriv = dev->private;
 537         struct comedi_async *async = s->async;
 538         struct comedi_cmd *cmd = &async->cmd;
 539         unsigned int byte;
 540         unsigned long flags;
 541         int range;
 542
 543         if (cmd->flags & TRIG_RT) {
 544                 comedi_error(dev, "isa dma transfers cannot be performed with "
 545                                                         "TRIG_RT, aborting");
 546                 return -1;
 547         }
 548
 549         devpriv->adc_byte_count =
 550             cmd->stop_arg * cmd->chanlist_len * sizeof(uint16_t);
 551
 552         /*  disable conversions for das1600 mode */
 553         if (board->size > 0x400)
 554                 outb(DAS1600_CONV_DISABLE, dev->iobase + DAS1600_CONV);
 555
 556         /*  set scan limits */
 557         byte = CR_CHAN(cmd->chanlist[0]);
 558         byte |= CR_CHAN(cmd->chanlist[cmd->chanlist_len - 1]) << 4;
 559         outb(byte, dev->iobase + DAS16_MUX);
 560
 561         /* set gain (this is also burst rate register but according to
 562          * computer boards manual, burst rate does nothing, even on
 563          * keithley cards) */
 564         if (board->ai_pg != das16_pg_none) {
 565                 range = CR_RANGE(cmd->chanlist[0]);
 566                 outb((das16_gainlists[board->ai_pg])[range],
 567                      dev->iobase + DAS16_GAIN);
 568         }
 569
 570         /* set counter mode and counts */
 571         cmd->convert_arg =
 572             das16_set_pacer(dev, cmd->convert_arg,
 573                             cmd->flags & TRIG_ROUND_MASK);
 574         DEBUG_PRINT("pacer period: %d ns\n", cmd->convert_arg);
 575
 576         /* enable counters */
 577         byte = 0;
 578         /* Enable burst mode if appropriate. */
 579         if (board->size > 0x400) {
 580                 if (cmd->convert_src == TRIG_NOW) {
 581                         outb(DAS1600_BURST_VAL, dev->iobase + DAS1600_BURST);
 582                         /*  set burst length */
 583                         byte |= BURST_LEN_BITS(cmd->chanlist_len - 1);
 584                 } else {
 585                         outb(0, dev->iobase + DAS1600_BURST);
 586                 }
 587         }
 588         outb(byte, dev->iobase + DAS16_PACER);
 589
 590         /*  set up dma transfer */
 591         flags = claim_dma_lock();
 592         disable_dma(devpriv->dma_chan);
 593         /* clear flip-flop to make sure 2-byte registers for
 594          * count and address get set correctly */
 595         clear_dma_ff(devpriv->dma_chan);
 596         devpriv->current_buffer = 0;
 597         set_dma_addr(devpriv->dma_chan,
 598                      devpriv->dma_buffer_addr[devpriv->current_buffer]);
 599         devpriv->dma_transfer_size = DAS16_DMA_SIZE;
 600         set_dma_count(devpriv->dma_chan, devpriv->dma_transfer_size);
 601         enable_dma(devpriv->dma_chan);
 602         release_dma_lock(flags);
 603
 604         /*  set up interrupt */
 605         devpriv->timer_running = 1;
 606         devpriv->timer.expires = jiffies + timer_period();
 607         add_timer(&devpriv->timer);
 608         devpriv->control_state &= ~DAS16_INTE;
 609         devpriv->control_state |= DMA_ENABLE;
 610         devpriv->control_state &= ~PACING_MASK;
 611         if (cmd->convert_src == TRIG_EXT)
 612                 devpriv->control_state |= EXT_PACER;
 613         else
 614                 devpriv->control_state |= INT_PACER;
 615         outb(devpriv->control_state, dev->iobase + DAS16_CONTROL);
 616
 617         /* Enable conversions if using das1600 mode */
 618         if (board->size > 0x400)
 619                 outb(0, dev->iobase + DAS1600_CONV);
 620
 621
 622         return 0;
 623 }
 624
 625 static int das16_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 626 {
 627         const struct das16_board *board = comedi_board(dev);
 628         struct das16_private_struct *devpriv = dev->private;
 629         unsigned long flags;
 630
 631         spin_lock_irqsave(&dev->spinlock, flags);
 632         /* disable interrupts, dma and pacer clocked conversions */
 633         devpriv->control_state &= ~DAS16_INTE & ~PACING_MASK & ~DMA_ENABLE;
 634         outb(devpriv->control_state, dev->iobase + DAS16_CONTROL);
 635         disable_dma(devpriv->dma_chan);
 636
 637         /*  disable SW timer */
 638         if (devpriv->timer_running) {
 639                 devpriv->timer_running = 0;
 640                 del_timer(&devpriv->timer);
 641         }
 642
 643         /* disable burst mode */
 644         if (board->size > 0x400)
 645                 outb(0, dev->iobase + DAS1600_BURST);
 646
 647
 648         spin_unlock_irqrestore(&dev->spinlock, flags);
 649
 650         return 0;
 651 }
 652
 653 static void das16_reset(struct comedi_device *dev)
 654 {
 655         outb(0, dev->iobase + DAS16_STATUS);
 656         outb(0, dev->iobase + DAS16_CONTROL);
 657         outb(0, dev->iobase + DAS16_PACER);
 658         outb(0, dev->iobase + DAS16_CNTR_CONTROL);
 659 }
 660
 661 static int das16_ai_insn_read(struct comedi_device *dev,
 662                               struct comedi_subdevice *s,
 663                               struct comedi_insn *insn,
 664                               unsigned int *data)
 665 {
 666         const struct das16_board *board = comedi_board(dev);
 667         struct das16_private_struct *devpriv = dev->private;
 668         int i, n;
 669         int range;
 670         int chan;
 671
 672         /*  disable interrupts and pacing */
 673         devpriv->control_state &= ~DAS16_INTE & ~DMA_ENABLE & ~PACING_MASK;
 674         outb(devpriv->control_state, dev->iobase + DAS16_CONTROL);
 675
 676         /* set multiplexer */
 677         chan = CR_CHAN(insn->chanspec);
 678         chan |= CR_CHAN(insn->chanspec) << 4;
 679         outb(chan, dev->iobase + DAS16_MUX);
 680
 681         /* set gain */
 682         if (board->ai_pg != das16_pg_none) {
 683                 range = CR_RANGE(insn->chanspec);
 684                 outb((das16_gainlists[board->ai_pg])[range],
 685                      dev->iobase + DAS16_GAIN);
 686         }
 687
 688         for (n = 0; n < insn->n; n++) {
 689                 unsigned int val;
 690
 691                 /* trigger conversion */
 692                 outb_p(0, dev->iobase + DAS16_TRIG);
 693
 694                 for (i = 0; i < DAS16_TIMEOUT; i++) {
 695                         if (!(inb(dev->iobase + DAS16_STATUS) & BUSY))
 696                                 break;
 697                 }
 698                 if (i == DAS16_TIMEOUT) {
 699                         printk("das16: timeout\n");
 700                         return -ETIME;
 701                 }
 702
 703                 val = inb(dev->iobase + DAS16_AI_MSB) << 8;
 704                 val |= inb(dev->iobase + DAS16_AI_LSB);
 705                 if (s->maxdata == 0x0fff)
 706                         data[n] >>= 4;
 707                 val &= s->maxdata;
 708
 709                 data[n] = val;
 710         }
 711
 712         return n;
 713 }
 714
 715 static int das16_di_rbits(struct comedi_device *dev, struct comedi_subdevice *s,
 716                           struct comedi_insn *insn, unsigned int *data)
 717 {
 718         unsigned int bits;
 719
 720         bits = inb(dev->iobase + DAS16_DIO) & 0xf;
 721         data[1] = bits;
 722         data[0] = 0;
 723
 724         return insn->n;
 725 }
 726
 727 static int das16_do_wbits(struct comedi_device *dev, struct comedi_subdevice *s,
 728                           struct comedi_insn *insn, unsigned int *data)
 729 {
 730         unsigned int wbits;
 731
 732         /*  only set bits that have been masked */
 733         data[0] &= 0xf;
 734         wbits = s->state;
 735         /*  zero bits that have been masked */
 736         wbits &= ~data[0];
 737         /*  set masked bits */
 738         wbits |= data[0] & data[1];
 739         s->state = wbits;
 740         data[1] = wbits;
 741
 742         outb(s->state, dev->iobase + DAS16_DIO);
 743
 744         return insn->n;
 745 }
 746
 747 static int das16_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
 748                           struct comedi_insn *insn, unsigned int *data)
 749 {
 750         const struct das16_board *board = comedi_board(dev);
 751         int i;
 752         int lsb, msb;
 753         int chan;
 754
 755         chan = CR_CHAN(insn->chanspec);
 756
 757         for (i = 0; i < insn->n; i++) {
 758                 if (board->ao_nbits == 12) {
 759                         lsb = (data[i] << 4) & 0xff;
 760                         msb = (data[i] >> 4) & 0xff;
 761                 } else {
 762                         lsb = data[i] & 0xff;
 763                         msb = (data[i] >> 8) & 0xff;
 764                 }
 765                 outb(lsb, dev->iobase + DAS16_AO_LSB(chan));
 766                 outb(msb, dev->iobase + DAS16_AO_MSB(chan));
 767         }
 768
 769         return i;
 770 }
 771
 772 /* the pc104-das16jr (at least) has problems if the dma
 773         transfer is interrupted in the middle of transferring
 774         a 16 bit sample, so this function takes care to get
 775         an even transfer count after disabling dma
 776         channel.
 777 */
 778 static int disable_dma_on_even(struct comedi_device *dev)
 779 {
 780         struct das16_private_struct *devpriv = dev->private;
 781         int residue;
 782         int i;
 783         static const int disable_limit = 100;
 784         static const int enable_timeout = 100;
 785
 786         disable_dma(devpriv->dma_chan);
 787         residue = get_dma_residue(devpriv->dma_chan);
 788         for (i = 0; i < disable_limit && (residue % 2); ++i) {
 789                 int j;
 790                 enable_dma(devpriv->dma_chan);
 791                 for (j = 0; j < enable_timeout; ++j) {
 792                         int new_residue;
 793                         udelay(2);
 794                         new_residue = get_dma_residue(devpriv->dma_chan);
 795                         if (new_residue != residue)
 796                                 break;
 797                 }
 798                 disable_dma(devpriv->dma_chan);
 799                 residue = get_dma_residue(devpriv->dma_chan);
 800         }
 801         if (i == disable_limit) {
 802                 comedi_error(dev, "failed to get an even dma transfer, "
 803                                                         "could be trouble.");
 804         }
 805         return residue;
 806 }
 807
 808 static void das16_interrupt(struct comedi_device *dev)
 809 {
 810         struct das16_private_struct *devpriv = dev->private;
 811         unsigned long dma_flags, spin_flags;
 812         struct comedi_subdevice *s = dev->read_subdev;
 813         struct comedi_async *async;
 814         struct comedi_cmd *cmd;
 815         int num_bytes, residue;
 816         int buffer_index;
 817
 818         if (!dev->attached) {
 819                 comedi_error(dev, "premature interrupt");
 820                 return;
 821         }
 822         /*  initialize async here to make sure it is not NULL */
 823         async = s->async;
 824         cmd = &async->cmd;
 825
 826         spin_lock_irqsave(&dev->spinlock, spin_flags);
 827         if ((devpriv->control_state & DMA_ENABLE) == 0) {
 828                 spin_unlock_irqrestore(&dev->spinlock, spin_flags);
 829                 DEBUG_PRINT("interrupt while dma disabled?\n");
 830                 return;
 831         }
 832
 833         dma_flags = claim_dma_lock();
 834         clear_dma_ff(devpriv->dma_chan);
 835         residue = disable_dma_on_even(dev);
 836
 837         /*  figure out how many points to read */
 838         if (residue > devpriv->dma_transfer_size) {
 839                 comedi_error(dev, "residue > transfer size!\n");
 840                 async->events |= COMEDI_CB_ERROR | COMEDI_CB_EOA;
 841                 num_bytes = 0;
 842         } else
 843                 num_bytes = devpriv->dma_transfer_size - residue;
 844
 845         if (cmd->stop_src == TRIG_COUNT &&
 846                                         num_bytes >= devpriv->adc_byte_count) {
 847                 num_bytes = devpriv->adc_byte_count;
 848                 async->events |= COMEDI_CB_EOA;
 849         }
 850
 851         buffer_index = devpriv->current_buffer;
 852         devpriv->current_buffer = (devpriv->current_buffer + 1) % 2;
 853         devpriv->adc_byte_count -= num_bytes;
 854
 855         /*  re-enable  dma */
 856         if ((async->events & COMEDI_CB_EOA) == 0) {
 857                 set_dma_addr(devpriv->dma_chan,
 858                              devpriv->dma_buffer_addr[devpriv->current_buffer]);
 859                 set_dma_count(devpriv->dma_chan, devpriv->dma_transfer_size);
 860                 enable_dma(devpriv->dma_chan);
 861         }
 862         release_dma_lock(dma_flags);
 863
 864         spin_unlock_irqrestore(&dev->spinlock, spin_flags);
 865
 866         cfc_write_array_to_buffer(s,
 867                                   devpriv->dma_buffer[buffer_index], num_bytes);
 868
 869         cfc_handle_events(dev, s);
 870 }
 871
 872 static void das16_timer_interrupt(unsigned long arg)
 873 {
 874         struct comedi_device *dev = (struct comedi_device *)arg;
 875         struct das16_private_struct *devpriv = dev->private;
 876
 877         das16_interrupt(dev);
 878
 879         if (devpriv->timer_running)
 880                 mod_timer(&devpriv->timer, jiffies + timer_period());
 881 }
 882
 883 static void reg_dump(struct comedi_device *dev)
 884 {
 885         DEBUG_PRINT("********DAS1600 REGISTER DUMP********\n");
 886         DEBUG_PRINT("DAS16_MUX: %x\n", inb(dev->iobase + DAS16_MUX));
 887         DEBUG_PRINT("DAS16_DIO: %x\n", inb(dev->iobase + DAS16_DIO));
 888         DEBUG_PRINT("DAS16_STATUS: %x\n", inb(dev->iobase + DAS16_STATUS));
 889         DEBUG_PRINT("DAS16_CONTROL: %x\n", inb(dev->iobase + DAS16_CONTROL));
 890         DEBUG_PRINT("DAS16_PACER: %x\n", inb(dev->iobase + DAS16_PACER));
 891         DEBUG_PRINT("DAS16_GAIN: %x\n", inb(dev->iobase + DAS16_GAIN));
 892         DEBUG_PRINT("DAS16_CNTR_CONTROL: %x\n",
 893                     inb(dev->iobase + DAS16_CNTR_CONTROL));
 894         DEBUG_PRINT("DAS1600_CONV: %x\n", inb(dev->iobase + DAS1600_CONV));
 895         DEBUG_PRINT("DAS1600_BURST: %x\n", inb(dev->iobase + DAS1600_BURST));
 896         DEBUG_PRINT("DAS1600_ENABLE: %x\n", inb(dev->iobase + DAS1600_ENABLE));
 897         DEBUG_PRINT("DAS1600_STATUS_B: %x\n",
 898                     inb(dev->iobase + DAS1600_STATUS_B));
 899 }
 900
 901 static int das16_probe(struct comedi_device *dev, struct comedi_devconfig *it)
 902 {
 903         const struct das16_board *board = comedi_board(dev);
 904         struct das16_private_struct *devpriv = dev->private;
 905         int status;
 906         int diobits;
 907
 908         /* status is available on all boards */
 909
 910         status = inb(dev->iobase + DAS16_STATUS);
 911
 912         if ((status & UNIPOLAR))
 913                 devpriv->ai_unipolar = 1;
 914         else
 915                 devpriv->ai_unipolar = 0;
 916
 917
 918         if ((status & DAS16_MUXBIT))
 919                 devpriv->ai_singleended = 1;
 920         else
 921                 devpriv->ai_singleended = 0;
 922
 923
 924         /* diobits indicates boards */
 925
 926         diobits = inb(dev->iobase + DAS16_DIO) & 0xf0;
 927
 928         printk(KERN_INFO " id bits are 0x%02x\n", diobits);
 929         if (board->id != diobits) {
 930                 printk(KERN_INFO " requested board's id bits are 0x%x (ignore)\n",
 931                        board->id);
 932         }
 933
 934         return 0;
 935 }
 936
 937 static int das1600_mode_detect(struct comedi_device *dev)
 938 {
 939         struct das16_private_struct *devpriv = dev->private;
 940         int status = 0;
 941
 942         status = inb(dev->iobase + DAS1600_STATUS_B);
 943
 944         if (status & DAS1600_CLK_10MHZ) {
 945                 devpriv->clockbase = 100;
 946                 printk(KERN_INFO " 10MHz pacer clock\n");
 947         } else {
 948                 devpriv->clockbase = 1000;
 949                 printk(KERN_INFO " 1MHz pacer clock\n");
 950         }
 951
 952         reg_dump(dev);
 953
 954         return 0;
 955 }
 956
 957 static void das16_ai_munge(struct comedi_device *dev,
 958                            struct comedi_subdevice *s, void *array,
 959                            unsigned int num_bytes,
 960                            unsigned int start_chan_index)
 961 {
 962         unsigned int i, num_samples = num_bytes / sizeof(short);
 963         short *data = array;
 964
 965         for (i = 0; i < num_samples; i++) {
 966                 data[i] = le16_to_cpu(data[i]);
 967                 if (s->maxdata == 0x0fff)
 968                         data[i] >>= 4;
 969                 data[i] &= s->maxdata;
 970         }
 971 }
 972
 973 /*
 974  *
 975  * Options list:
 976  *   0  I/O base
 977  *   1  IRQ
 978  *   2  DMA
 979  *   3  Clock speed (in MHz)
 980  */
 981 static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 982 {
 983         const struct das16_board *board = comedi_board(dev);
 984         struct das16_private_struct *devpriv;
 985         struct comedi_subdevice *s;
 986         struct comedi_krange *user_ai_range;
 987         struct comedi_krange *user_ao_range;
 988         unsigned int dma_chan = it->options[2];
 989         int ret;
 990
 991         /*  check that clock setting is valid */
 992         if (it->options[3]) {
 993                 if (it->options[3] != 0 &&
 994                     it->options[3] != 1 && it->options[3] != 10) {
 995                         printk
 996                             ("\n Invalid option.  Master clock must be set "
 997                                                         "to 1 or 10 (MHz)\n");
 998                         return -EINVAL;
 999                 }
1000         }
1001
1002         devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
1003         if (!devpriv)
1004                 return -ENOMEM;
1005
1006         if (board->size < 0x400) {
1007                 ret = comedi_request_region(dev, it->options[0], board->size);
1008                 if (ret)
1009                         return ret;
1010         } else {
1011                 ret = comedi_request_region(dev, it->options[0], 0x10);
1012                 if (ret)
1013                         return ret;
1014                 /* Request an additional region for the 8255 */
1015                 ret = __comedi_request_region(dev, dev->iobase + 0x400,
1016                                               board->size & 0x3ff);
1017                 if (ret)
1018                         return ret;
1019                 devpriv->extra_iobase = dev->iobase + 0x400;
1020         }
1021
1022         /*  probe id bits to make sure they are consistent */
1023         if (das16_probe(dev, it)) {
1024                 printk(KERN_ERR " id bits do not match selected board, aborting\n");
1025                 return -EINVAL;
1026         }
1027
1028         /*  get master clock speed */
1029         if (board->size < 0x400) {
1030                 if (it->options[3])
1031                         devpriv->clockbase = 1000 / it->options[3];
1032                 else
1033                         devpriv->clockbase = 1000;      /*  1 MHz default */
1034         } else {
1035                 das1600_mode_detect(dev);
1036         }
1037
1038         /* initialize dma */
1039         if (dma_chan == 1 || dma_chan == 3) {
1040                 unsigned long flags;
1041                 int i;
1042
1043                 if (request_dma(dma_chan, dev->board_name)) {
1044                         dev_err(dev->class_dev,
1045                                 "failed to request dma channel %i\n",
1046                                 dma_chan);
1047                         return -EINVAL;
1048                 }
1049                 devpriv->dma_chan = dma_chan;
1050
1051                 /* allocate dma buffers */
1052                 for (i = 0; i < 2; i++) {
1053                         void *p;
1054
1055                         p = pci_alloc_consistent(NULL, DAS16_DMA_SIZE,
1056                                                  &devpriv->dma_buffer_addr[i]);
1057                         if (!p)
1058                                 return -ENOMEM;
1059                         devpriv->dma_buffer[i] = p;
1060                 }
1061
1062                 flags = claim_dma_lock();
1063                 disable_dma(devpriv->dma_chan);
1064                 set_dma_mode(devpriv->dma_chan, DMA_MODE_READ);
1065                 release_dma_lock(flags);
1066
1067                 init_timer(&(devpriv->timer));
1068                 devpriv->timer.function = das16_timer_interrupt;
1069                 devpriv->timer.data = (unsigned long)dev;
1070         }
1071
1072         /*  get any user-defined input range */
1073         if (board->ai_pg == das16_pg_none &&
1074             (it->options[4] || it->options[5])) {
1075                 /*  allocate single-range range table */
1076                 devpriv->user_ai_range_table =
1077                     kmalloc(sizeof(struct comedi_lrange) +
1078                             sizeof(struct comedi_krange), GFP_KERNEL);
1079                 /*  initialize ai range */
1080                 devpriv->user_ai_range_table->length = 1;
1081                 user_ai_range = devpriv->user_ai_range_table->range;
1082                 user_ai_range->min = it->options[4];
1083                 user_ai_range->max = it->options[5];
1084                 user_ai_range->flags = UNIT_volt;
1085         }
1086         /*  get any user-defined output range */
1087         if (it->options[6] || it->options[7]) {
1088                 /*  allocate single-range range table */
1089                 devpriv->user_ao_range_table =
1090                     kmalloc(sizeof(struct comedi_lrange) +
1091                             sizeof(struct comedi_krange), GFP_KERNEL);
1092                 /*  initialize ao range */
1093                 devpriv->user_ao_range_table->length = 1;
1094                 user_ao_range = devpriv->user_ao_range_table->range;
1095                 user_ao_range->min = it->options[6];
1096                 user_ao_range->max = it->options[7];
1097                 user_ao_range->flags = UNIT_volt;
1098         }
1099
1100         ret = comedi_alloc_subdevices(dev, 5);
1101         if (ret)
1102                 return ret;
1103
1104         /* Analog Input subdevice */
1105         s = &dev->subdevices[0];
1106         s->type         = COMEDI_SUBD_AI;
1107         s->subdev_flags = SDF_READABLE;
1108         if (devpriv->ai_singleended) {
1109                 s->subdev_flags |= SDF_GROUND;
1110                 s->n_chan       = 16;
1111         } else {
1112                 s->subdev_flags |= SDF_DIFF;
1113                 s->n_chan       = 8;
1114         }
1115         s->len_chanlist = s->n_chan;
1116         s->maxdata      = board->ai_maxdata;
1117         if (devpriv->user_ai_range_table) { /*  user defined ai range */
1118                 s->range_table  = devpriv->user_ai_range_table;
1119         } else if (devpriv->ai_unipolar) {
1120                 s->range_table  = das16_ai_uni_lranges[board->ai_pg];
1121         } else {
1122                 s->range_table  = das16_ai_bip_lranges[board->ai_pg];
1123         }
1124         s->insn_read    = das16_ai_insn_read;
1125         if (devpriv->dma_chan) {
1126                 dev->read_subdev = s;
1127                 s->subdev_flags |= SDF_CMD_READ;
1128                 s->do_cmdtest   = das16_cmd_test;
1129                 s->do_cmd       = das16_cmd_exec;
1130                 s->cancel       = das16_cancel;
1131                 s->munge        = das16_ai_munge;
1132         }
1133
1134         s = &dev->subdevices[1];
1135         /* ao */
1136         if (board->ao) {
1137                 s->type = COMEDI_SUBD_AO;
1138                 s->subdev_flags = SDF_WRITABLE;
1139                 s->n_chan = 2;
1140                 s->maxdata = (1 << board->ao_nbits) - 1;
1141                 /*  user defined ao range */
1142                 if (devpriv->user_ao_range_table)
1143                         s->range_table = devpriv->user_ao_range_table;
1144                 else
1145                         s->range_table = &range_unknown;
1146
1147                 s->insn_write = board->ao;
1148         } else {
1149                 s->type = COMEDI_SUBD_UNUSED;
1150         }
1151
1152         s = &dev->subdevices[2];
1153         /* di */
1154         if (board->di) {
1155                 s->type = COMEDI_SUBD_DI;
1156                 s->subdev_flags = SDF_READABLE;
1157                 s->n_chan = 4;
1158                 s->maxdata = 1;
1159                 s->range_table = &range_digital;
1160                 s->insn_bits = board->di;
1161         } else {
1162                 s->type = COMEDI_SUBD_UNUSED;
1163         }
1164
1165         s = &dev->subdevices[3];
1166         /* do */
1167         if (board->do_) {
1168                 s->type = COMEDI_SUBD_DO;
1169                 s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
1170                 s->n_chan = 4;
1171                 s->maxdata = 1;
1172                 s->range_table = &range_digital;
1173                 s->insn_bits = board->do_;
1174                 /*  initialize digital output lines */
1175                 outb(s->state, dev->iobase + DAS16_DIO);
1176         } else {
1177                 s->type = COMEDI_SUBD_UNUSED;
1178         }
1179
1180         s = &dev->subdevices[4];
1181         /* 8255 */
1182         if (board->i8255_offset != 0) {
1183                 subdev_8255_init(dev, s, NULL, (dev->iobase +
1184                                                 board->i8255_offset));
1185         } else {
1186                 s->type = COMEDI_SUBD_UNUSED;
1187         }
1188
1189         das16_reset(dev);
1190         /* set the interrupt level */
1191         devpriv->control_state = DAS16_IRQ(dev->irq);
1192         outb(devpriv->control_state, dev->iobase + DAS16_CONTROL);
1193
1194         /*  turn on das1600 mode if available */
1195         if (board->size > 0x400) {
1196                 outb(DAS1600_ENABLE_VAL, dev->iobase + DAS1600_ENABLE);
1197                 outb(0, dev->iobase + DAS1600_CONV);
1198                 outb(0, dev->iobase + DAS1600_BURST);
1199         }
1200
1201         return 0;
1202 }
1203
1204 static void das16_detach(struct comedi_device *dev)
1205 {
1206         const struct das16_board *board = comedi_board(dev);
1207         struct das16_private_struct *devpriv = dev->private;
1208
1209         das16_reset(dev);
1210         if (devpriv) {
1211                 int i;
1212                 for (i = 0; i < 2; i++) {
1213                         if (devpriv->dma_buffer[i])
1214                                 pci_free_consistent(NULL, DAS16_DMA_SIZE,
1215                                                     devpriv->dma_buffer[i],
1216                                                     devpriv->
1217                                                     dma_buffer_addr[i]);
1218                 }
1219                 if (devpriv->dma_chan)
1220                         free_dma(devpriv->dma_chan);
1221                 kfree(devpriv->user_ai_range_table);
1222                 kfree(devpriv->user_ao_range_table);
1223         }
1224         if (devpriv->extra_iobase)
1225                 release_region(devpriv->extra_iobase, board->size & 0x3ff);
1226         comedi_legacy_detach(dev);
1227 }
1228
1229 static const struct das16_board das16_boards[] = {
1230         {
1231                 .name           = "das-16",
1232                 .ai_maxdata     = 0x0fff,
1233                 .ai_speed       = 15000,
1234                 .ai_pg          = das16_pg_none,
1235                 .ao             = das16_ao_winsn,
1236                 .ao_nbits       = 12,
1237                 .di             = das16_di_rbits,
1238                 .do_            = das16_do_wbits,
1239                 .i8255_offset   = 0x10,
1240                 .i8254_offset   = 0x0c,
1241                 .size           = 0x14,
1242                 .id             = 0x00,
1243         }, {
1244                 .name           = "das-16g",
1245                 .ai_maxdata     = 0x0fff,
1246                 .ai_speed       = 15000,
1247                 .ai_pg          = das16_pg_none,
1248                 .ao             = das16_ao_winsn,
1249                 .ao_nbits       = 12,
1250                 .di             = das16_di_rbits,
1251                 .do_            = das16_do_wbits,
1252                 .i8255_offset   = 0x10,
1253                 .i8254_offset   = 0x0c,
1254                 .size           = 0x14,
1255                 .id             = 0x00,
1256         }, {
1257                 .name           = "das-16f",
1258                 .ai_maxdata     = 0x0fff,
1259                 .ai_speed       = 8500,
1260                 .ai_pg          = das16_pg_none,
1261                 .ao             = das16_ao_winsn,
1262                 .ao_nbits       = 12,
1263                 .di             = das16_di_rbits,
1264                 .do_            = das16_do_wbits,
1265                 .i8255_offset   = 0x10,
1266                 .i8254_offset   = 0x0c,
1267                 .size           = 0x14,
1268                 .id             = 0x00,
1269         }, {
1270                 .name           = "cio-das16",
1271                 .ai_maxdata     = 0x0fff,
1272                 .ai_speed       = 20000,
1273                 .ai_pg          = das16_pg_none,
1274                 .ao             = das16_ao_winsn,
1275                 .ao_nbits       = 12,
1276                 .di             = das16_di_rbits,
1277                 .do_            = das16_do_wbits,
1278                 .i8255_offset   = 0x10,
1279                 .i8254_offset   = 0x0c,
1280                 .size           = 0x14,
1281                 .id             = 0x80,
1282         }, {
1283                 .name           = "cio-das16/f",
1284                 .ai_maxdata     = 0x0fff,
1285                 .ai_speed       = 10000,
1286                 .ai_pg          = das16_pg_none,
1287                 .ao             = das16_ao_winsn,
1288                 .ao_nbits       = 12,
1289                 .di             = das16_di_rbits,
1290                 .do_            = das16_do_wbits,
1291                 .i8255_offset   = 0x10,
1292                 .i8254_offset   = 0x0c,
1293                 .size           = 0x14,
1294                 .id             = 0x80,
1295         }, {
1296                 .name           = "cio-das16/jr",
1297                 .ai_maxdata     = 0x0fff,
1298                 .ai_speed       = 7692,
1299                 .ai_pg          = das16_pg_16jr,
1300                 .ao             = NULL,
1301                 .di             = das16_di_rbits,
1302                 .do_            = das16_do_wbits,
1303                 .i8255_offset   = 0,
1304                 .i8254_offset   = 0x0c,
1305                 .size           = 0x10,
1306                 .id             = 0x00,
1307         }, {
1308                 .name           = "pc104-das16jr",
1309                 .ai_maxdata     = 0x0fff,
1310                 .ai_speed       = 3300,
1311                 .ai_pg          = das16_pg_16jr,
1312                 .ao             = NULL,
1313                 .di             = das16_di_rbits,
1314                 .do_            = das16_do_wbits,
1315                 .i8255_offset   = 0,
1316                 .i8254_offset   = 0x0c,
1317                 .size           = 0x10,
1318                 .id             = 0x00,
1319         }, {
1320                 .name           = "cio-das16jr/16",
1321                 .ai_maxdata     = 0xffff,
1322                 .ai_speed       = 10000,
1323                 .ai_pg          = das16_pg_16jr_16,
1324                 .ao             = NULL,
1325                 .di             = das16_di_rbits,
1326                 .do_            = das16_do_wbits,
1327                 .i8255_offset   = 0,
1328                 .i8254_offset   = 0x0c,
1329                 .size           = 0x10,
1330                 .id             = 0x00,
1331         }, {
1332                 .name           = "pc104-das16jr/16",
1333                 .ai_maxdata     = 0xffff,
1334                 .ai_speed       = 10000,
1335                 .ai_pg          = das16_pg_16jr_16,
1336                 .ao             = NULL,
1337                 .di             = das16_di_rbits,
1338                 .do_            = das16_do_wbits,
1339                 .i8255_offset   = 0,
1340                 .i8254_offset   = 0x0c,
1341                 .size           = 0x10,
1342                 .id             = 0x00,
1343         }, {
1344                 .name           = "das-1201",
1345                 .ai_maxdata     = 0x0fff,
1346                 .ai_speed       = 20000,
1347                 .ai_pg          = das16_pg_none,
1348                 .ao             = NULL,
1349                 .di             = das16_di_rbits,
1350                 .do_            = das16_do_wbits,
1351                 .i8255_offset   = 0x400,
1352                 .i8254_offset   = 0x0c,
1353                 .size           = 0x408,
1354                 .id             = 0x20,
1355         }, {
1356                 .name           = "das-1202",
1357                 .ai_maxdata     = 0x0fff,
1358                 .ai_speed       = 10000,
1359                 .ai_pg          = das16_pg_none,
1360                 .ao             = NULL,
1361                 .di             = das16_di_rbits,
1362                 .do_            = das16_do_wbits,
1363                 .i8255_offset   = 0x400,
1364                 .i8254_offset   = 0x0c,
1365                 .size           = 0x408,
1366                 .id             = 0x20,
1367         }, {
1368                 .name           = "das-1401",
1369                 .ai_maxdata     = 0x0fff,
1370                 .ai_speed       = 10000,
1371                 .ai_pg          = das16_pg_1601,
1372                 .ao             = NULL,
1373                 .di             = das16_di_rbits,
1374                 .do_            = das16_do_wbits,
1375                 .i8255_offset   = 0x0,
1376                 .i8254_offset   = 0x0c,
1377                 .size           = 0x408,
1378                 .id             = 0xc0,
1379         }, {
1380                 .name           = "das-1402",
1381                 .ai_maxdata     = 0x0fff,
1382                 .ai_speed       = 10000,
1383                 .ai_pg          = das16_pg_1602,
1384                 .ao             = NULL,
1385                 .di             = das16_di_rbits,
1386                 .do_            = das16_do_wbits,
1387                 .i8255_offset   = 0x0,
1388                 .i8254_offset   = 0x0c,
1389                 .size           = 0x408,
1390                 .id             = 0xc0,
1391         }, {
1392                 .name           = "das-1601",
1393                 .ai_maxdata     = 0x0fff,
1394                 .ai_speed       = 10000,
1395                 .ai_pg          = das16_pg_1601,
1396                 .ao             = das16_ao_winsn,
1397                 .ao_nbits       = 12,
1398                 .di             = das16_di_rbits,
1399                 .do_            = das16_do_wbits,
1400                 .i8255_offset   = 0x400,
1401                 .i8254_offset   = 0x0c,
1402                 .size           = 0x408,
1403                 .id             = 0xc0,
1404         }, {
1405                 .name           = "das-1602",
1406                 .ai_maxdata     = 0x0fff,
1407                 .ai_speed       = 10000,
1408                 .ai_pg          = das16_pg_1602,
1409                 .ao             = das16_ao_winsn,
1410                 .ao_nbits       = 12,
1411                 .di             = das16_di_rbits,
1412                 .do_            = das16_do_wbits,
1413                 .i8255_offset   = 0x400,
1414                 .i8254_offset   = 0x0c,
1415                 .size           = 0x408,
1416                 .id             = 0xc0,
1417         }, {
1418                 .name           = "cio-das1401/12",
1419                 .ai_maxdata     = 0x0fff,
1420                 .ai_speed       = 6250,
1421                 .ai_pg          = das16_pg_1601,
1422                 .ao             = NULL,
1423                 .di             = das16_di_rbits,
1424                 .do_            = das16_do_wbits,
1425                 .i8255_offset   = 0,
1426                 .i8254_offset   = 0x0c,
1427                 .size           = 0x408,
1428                 .id             = 0xc0,
1429         }, {
1430                 .name           = "cio-das1402/12",
1431                 .ai_maxdata     = 0x0fff,
1432                 .ai_speed       = 6250,
1433                 .ai_pg          = das16_pg_1602,
1434                 .ao             = NULL,
1435                 .di             = das16_di_rbits,
1436                 .do_            = das16_do_wbits,
1437                 .i8255_offset   = 0,
1438                 .i8254_offset   = 0x0c,
1439                 .size           = 0x408,
1440                 .id             = 0xc0,
1441         }, {
1442                 .name           = "cio-das1402/16",
1443                 .ai_maxdata     = 0xffff,
1444                 .ai_speed       = 10000,
1445                 .ai_pg          = das16_pg_1602,
1446                 .ao             = NULL,
1447                 .di             = das16_di_rbits,
1448                 .do_            = das16_do_wbits,
1449                 .i8255_offset   = 0,
1450                 .i8254_offset   = 0x0c,
1451                 .size           = 0x408,
1452                 .id             = 0xc0,
1453         }, {
1454                 .name           = "cio-das1601/12",
1455                 .ai_maxdata     = 0x0fff,
1456                 .ai_speed       = 6250,
1457                 .ai_pg          = das16_pg_1601,
1458                 .ao             = das16_ao_winsn,
1459                 .ao_nbits       = 12,
1460                 .di             = das16_di_rbits,
1461                 .do_            = das16_do_wbits,
1462                 .i8255_offset   = 0x400,
1463                 .i8254_offset   = 0x0c,
1464                 .size           = 0x408,
1465                 .id             = 0xc0,
1466         }, {
1467                 .name           = "cio-das1602/12",
1468                 .ai_maxdata     = 0x0fff,
1469                 .ai_speed       = 10000,
1470                 .ai_pg          = das16_pg_1602,
1471                 .ao             = das16_ao_winsn,
1472                 .ao_nbits       = 12,
1473                 .di             = das16_di_rbits,
1474                 .do_            = das16_do_wbits,
1475                 .i8255_offset   = 0x400,
1476                 .i8254_offset   = 0x0c,
1477                 .size           = 0x408,
1478                 .id             = 0xc0,
1479         }, {
1480                 .name           = "cio-das1602/16",
1481                 .ai_maxdata     = 0xffff,
1482                 .ai_speed       = 10000,
1483                 .ai_pg          = das16_pg_1602,
1484                 .ao             = das16_ao_winsn,
1485                 .ao_nbits       = 12,
1486                 .di             = das16_di_rbits,
1487                 .do_            = das16_do_wbits,
1488                 .i8255_offset   = 0x400,
1489                 .i8254_offset   = 0x0c,
1490                 .size           = 0x408,
1491                 .id             = 0xc0,
1492         }, {
1493                 .name           = "cio-das16/330",
1494                 .ai_maxdata     = 0x0fff,
1495                 .ai_speed       = 3030,
1496                 .ai_pg          = das16_pg_16jr,
1497                 .ao             = NULL,
1498                 .di             = das16_di_rbits,
1499                 .do_            = das16_do_wbits,
1500                 .i8255_offset   = 0,
1501                 .i8254_offset   = 0x0c,
1502                 .size           = 0x14,
1503                 .id             = 0xf0,
1504         },
1505 };
1506
1507 static struct comedi_driver das16_driver = {
1508         .driver_name    = "das16",
1509         .module         = THIS_MODULE,
1510         .attach         = das16_attach,
1511         .detach         = das16_detach,
1512         .board_name     = &das16_boards[0].name,
1513         .num_names      = ARRAY_SIZE(das16_boards),
1514         .offset         = sizeof(das16_boards[0]),
1515 };
1516 module_comedi_driver(das16_driver);
1517
1518 MODULE_AUTHOR("Comedi http://www.comedi.org");
1519 MODULE_DESCRIPTION("Comedi low-level driver");
1520 MODULE_LICENSE("GPL");