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   1 /*
   2     comedi/drivers/ni_6514.c
   3     driver for National Instruments PCI-6514
   4
   5     Copyright (C) 2006 Jon Grierson <jd@renko.co.uk>
   6     Copyright (C) 2006 Frank Mori Hess <fmhess@users.sourceforge.net>
   7
   8     COMEDI - Linux Control and Measurement Device Interface
   9     Copyright (C) 1999,2002,2003 David A. Schleef <ds@schleef.org>
  10
  11     This program is free software; you can redistribute it and/or modify
  12     it under the terms of the GNU General Public License as published by
  13     the Free Software Foundation; either version 2 of the License, or
  14     (at your option) any later version.
  15
  16     This program is distributed in the hope that it will be useful,
  17     but WITHOUT ANY WARRANTY; without even the implied warranty of
  18     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19     GNU General Public License for more details.
  20
  21     You should have received a copy of the GNU General Public License
  22     along with this program; if not, write to the Free Software
  23     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  24
  25 */
  26 /*
  27 Driver: ni_65xx
  28 Description: National Instruments 65xx static dio boards
  29 Author: Jon Grierson <jd@renko.co.uk>, Frank Mori Hess <fmhess@users.sourceforge.net>
  30 Status: testing
  31 Devices: [National Instruments] PCI-6509 (ni_65xx), PXI-6509, PCI-6510, PCI-6511,
  32   PXI-6511, PCI-6512, PXI-6512, PCI-6513, PXI-6513, PCI-6514, PXI-6514, PCI-6515,
  33   PXI-6515, PCI-6516, PCI-6517, PCI-6518, PCI-6519, PCI-6520, PCI-6521, PXI-6521,
  34   PCI-6528, PXI-6528
  35 Updated: Wed Oct 18 08:59:11 EDT 2006
  36
  37 Based on the PCI-6527 driver by ds.
  38 The interrupt subdevice (subdevice 3) is probably broken for all boards
  39 except maybe the 6514.
  40
  41 */
  42
  43 /*
  44    Manuals (available from ftp://ftp.natinst.com/support/manuals)
  45
  46         370106b.pdf     6514 Register Level Programmer Manual
  47
  48  */
  49
  50 #define _GNU_SOURCE
  51 #define DEBUG 1
  52 #define DEBUG_FLAGS
  53 #include "../comedidev.h"
  54
  55 #include "mite.h"
  56
  57 #define NI6514_DIO_SIZE 4096
  58 #define NI6514_MITE_SIZE 4096
  59
  60 #define NI_65XX_MAX_NUM_PORTS 12
  61 static const unsigned ni_65xx_channels_per_port = 8;
  62 static const unsigned ni_65xx_port_offset = 0x10;
  63
  64 static inline unsigned Port_Data(unsigned port)
  65 {
  66         return 0x40 + port * ni_65xx_port_offset;
  67 }
  68 static inline unsigned Port_Select(unsigned port)
  69 {
  70         return 0x41 + port * ni_65xx_port_offset;
  71 }
  72 static inline unsigned Rising_Edge_Detection_Enable(unsigned port)
  73 {
  74         return 0x42 + port * ni_65xx_port_offset;
  75 }
  76 static inline unsigned Falling_Edge_Detection_Enable(unsigned port)
  77 {
  78         return 0x43 + port * ni_65xx_port_offset;
  79 }
  80 static inline unsigned Filter_Enable(unsigned port)
  81 {
  82         return 0x44 + port * ni_65xx_port_offset;
  83 }
  84
  85 #define ID_Register                             0x00
  86
  87 #define Clear_Register                          0x01
  88 #define ClrEdge                         0x08
  89 #define ClrOverflow                     0x04
  90
  91 #define Filter_Interval                 0x08
  92
  93 #define Change_Status                           0x02
  94 #define MasterInterruptStatus           0x04
  95 #define Overflow                        0x02
  96 #define EdgeStatus                      0x01
  97
  98 #define Master_Interrupt_Control                0x03
  99 #define FallingEdgeIntEnable            0x10
 100 #define RisingEdgeIntEnable             0x08
 101 #define MasterInterruptEnable           0x04
 102 #define OverflowIntEnable               0x02
 103 #define EdgeIntEnable                   0x01
 104
 105 static int ni_65xx_attach(struct comedi_device * dev, struct comedi_devconfig * it);
 106 static int ni_65xx_detach(struct comedi_device * dev);
 107 static struct comedi_driver driver_ni_65xx = {
 108       driver_name:"ni_65xx",
 109       module:THIS_MODULE,
 110       attach:ni_65xx_attach,
 111       detach:ni_65xx_detach,
 112 };
 113
 114 struct ni_65xx_board {
 115
 116         int dev_id;
 117         const char *name;
 118         unsigned num_dio_ports;
 119         unsigned num_di_ports;
 120         unsigned num_do_ports;
 121         unsigned invert_outputs:1;
 122 };
 123
 124 static const struct ni_65xx_board ni_65xx_boards[] = {
 125         {
 126               dev_id:   0x7085,
 127               name:     "pci-6509",
 128               num_dio_ports:12,
 129       invert_outputs:0},
 130         {
 131               dev_id:   0x1710,
 132               name:     "pxi-6509",
 133               num_dio_ports:12,
 134       invert_outputs:0},
 135         {
 136               dev_id:   0x7124,
 137               name:     "pci-6510",
 138       num_di_ports:4},
 139         {
 140               dev_id:   0x70c3,
 141               name:     "pci-6511",
 142       num_di_ports:8},
 143         {
 144               dev_id:   0x70d3,
 145               name:     "pxi-6511",
 146       num_di_ports:8},
 147         {
 148               dev_id:   0x70cc,
 149               name:     "pci-6512",
 150       num_do_ports:8},
 151         {
 152               dev_id:   0x70d2,
 153               name:     "pxi-6512",
 154       num_do_ports:8},
 155         {
 156               dev_id:   0x70c8,
 157               name:     "pci-6513",
 158               num_do_ports:8,
 159       invert_outputs:1},
 160         {
 161               dev_id:   0x70d1,
 162               name:     "pxi-6513",
 163               num_do_ports:8,
 164       invert_outputs:1},
 165         {
 166               dev_id:   0x7088,
 167               name:     "pci-6514",
 168               num_di_ports:4,
 169               num_do_ports:4,
 170       invert_outputs:1},
 171         {
 172               dev_id:   0x70CD,
 173               name:     "pxi-6514",
 174               num_di_ports:4,
 175               num_do_ports:4,
 176       invert_outputs:1},
 177         {
 178               dev_id:   0x7087,
 179               name:     "pci-6515",
 180               num_di_ports:4,
 181               num_do_ports:4,
 182       invert_outputs:1},
 183         {
 184               dev_id:   0x70c9,
 185               name:     "pxi-6515",
 186               num_di_ports:4,
 187               num_do_ports:4,
 188       invert_outputs:1},
 189         {
 190               dev_id:   0x7125,
 191               name:     "pci-6516",
 192               num_do_ports:4,
 193       invert_outputs:1},
 194         {
 195               dev_id:   0x7126,
 196               name:     "pci-6517",
 197               num_do_ports:4,
 198       invert_outputs:1},
 199         {
 200               dev_id:   0x7127,
 201               name:     "pci-6518",
 202               num_di_ports:2,
 203               num_do_ports:2,
 204       invert_outputs:1},
 205         {
 206               dev_id:   0x7128,
 207               name:     "pci-6519",
 208               num_di_ports:2,
 209               num_do_ports:2,
 210       invert_outputs:1},
 211         {
 212               dev_id:   0x71c5,
 213               name:     "pci-6520",
 214               num_di_ports:1,
 215               num_do_ports:1,
 216                 },
 217         {
 218               dev_id:   0x718b,
 219               name:     "pci-6521",
 220               num_di_ports:1,
 221               num_do_ports:1,
 222                 },
 223         {
 224               dev_id:   0x718c,
 225               name:     "pxi-6521",
 226               num_di_ports:1,
 227               num_do_ports:1,
 228                 },
 229         {
 230               dev_id:   0x70a9,
 231               name:     "pci-6528",
 232               num_di_ports:3,
 233               num_do_ports:3,
 234                 },
 235         {
 236               dev_id:   0x7086,
 237               name:     "pxi-6528",
 238               num_di_ports:3,
 239               num_do_ports:3,
 240                 },
 241 };
 242
 243 #define n_ni_65xx_boards (sizeof(ni_65xx_boards)/sizeof(ni_65xx_boards[0]))
 244 static inline const struct ni_65xx_board *board(struct comedi_device * dev)
 245 {
 246         return dev->board_ptr;
 247 }
 248 static inline unsigned ni_65xx_port_by_channel(unsigned channel)
 249 {
 250         return channel / ni_65xx_channels_per_port;
 251 }
 252 static inline unsigned ni_65xx_total_num_ports(const struct ni_65xx_board * board)
 253 {
 254         return board->num_dio_ports + board->num_di_ports + board->num_do_ports;
 255 }
 256
 257 static DEFINE_PCI_DEVICE_TABLE(ni_65xx_pci_table) = {
 258         {PCI_VENDOR_ID_NATINST, 0x1710, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 259         {PCI_VENDOR_ID_NATINST, 0x7085, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 260         {PCI_VENDOR_ID_NATINST, 0x7086, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 261         {PCI_VENDOR_ID_NATINST, 0x7087, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 262         {PCI_VENDOR_ID_NATINST, 0x7088, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 263         {PCI_VENDOR_ID_NATINST, 0x70a9, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 264         {PCI_VENDOR_ID_NATINST, 0x70c3, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 265         {PCI_VENDOR_ID_NATINST, 0x70c8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 266         {PCI_VENDOR_ID_NATINST, 0x70c9, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 267         {PCI_VENDOR_ID_NATINST, 0x70cc, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 268         {PCI_VENDOR_ID_NATINST, 0x70CD, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 269         {PCI_VENDOR_ID_NATINST, 0x70d1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 270         {PCI_VENDOR_ID_NATINST, 0x70d2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 271         {PCI_VENDOR_ID_NATINST, 0x70d3, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 272         {PCI_VENDOR_ID_NATINST, 0x7124, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 273         {PCI_VENDOR_ID_NATINST, 0x7125, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 274         {PCI_VENDOR_ID_NATINST, 0x7126, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 275         {PCI_VENDOR_ID_NATINST, 0x7127, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 276         {PCI_VENDOR_ID_NATINST, 0x7128, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 277         {PCI_VENDOR_ID_NATINST, 0x718b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 278         {PCI_VENDOR_ID_NATINST, 0x718c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 279         {PCI_VENDOR_ID_NATINST, 0x71c5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 280         {0}
 281 };
 282
 283 MODULE_DEVICE_TABLE(pci, ni_65xx_pci_table);
 284
 285 struct ni_65xx_private {
 286         struct mite_struct *mite;
 287         unsigned int filter_interval;
 288         unsigned short filter_enable[NI_65XX_MAX_NUM_PORTS];
 289         unsigned short output_bits[NI_65XX_MAX_NUM_PORTS];
 290         unsigned short dio_direction[NI_65XX_MAX_NUM_PORTS];
 291 };
 292
 293 static inline struct ni_65xx_private *private(struct comedi_device * dev)
 294 {
 295         return dev->private;
 296 }
 297
 298 struct ni_65xx_subdevice_private {
 299         unsigned base_port;
 300 };
 301
 302 static inline struct ni_65xx_subdevice_private *sprivate(struct comedi_subdevice * subdev)
 303 {
 304         return subdev->private;
 305 }
 306 static struct ni_65xx_subdevice_private *ni_65xx_alloc_subdevice_private(void)
 307 {
 308         struct ni_65xx_subdevice_private *subdev_private =
 309                 kzalloc(sizeof(struct ni_65xx_subdevice_private), GFP_KERNEL);
 310         if (subdev_private == NULL)
 311                 return NULL;
 312         return subdev_private;
 313 }
 314
 315 static int ni_65xx_find_device(struct comedi_device * dev, int bus, int slot);
 316
 317 static int ni_65xx_config_filter(struct comedi_device * dev, struct comedi_subdevice * s,
 318         struct comedi_insn * insn, unsigned int * data)
 319 {
 320         const unsigned chan = CR_CHAN(insn->chanspec);
 321         const unsigned port =
 322                 sprivate(s)->base_port + ni_65xx_port_by_channel(chan);
 323
 324         if (data[0] != INSN_CONFIG_FILTER)
 325                 return -EINVAL;
 326         if (data[1]) {
 327                 static const unsigned filter_resolution_ns = 200;
 328                 static const unsigned max_filter_interval = 0xfffff;
 329                 unsigned interval =
 330                         (data[1] +
 331                         (filter_resolution_ns / 2)) / filter_resolution_ns;
 332                 if (interval > max_filter_interval)
 333                         interval = max_filter_interval;
 334                 data[1] = interval * filter_resolution_ns;
 335
 336                 if (interval != private(dev)->filter_interval) {
 337                         writeb(interval,
 338                                 private(dev)->mite->daq_io_addr +
 339                                 Filter_Interval);
 340                         private(dev)->filter_interval = interval;
 341                 }
 342
 343                 private(dev)->filter_enable[port] |=
 344                         1 << (chan % ni_65xx_channels_per_port);
 345         } else {
 346                 private(dev)->filter_enable[port] &=
 347                         ~(1 << (chan % ni_65xx_channels_per_port));
 348         }
 349
 350         writeb(private(dev)->filter_enable[port],
 351                 private(dev)->mite->daq_io_addr + Filter_Enable(port));
 352
 353         return 2;
 354 }
 355
 356 static int ni_65xx_dio_insn_config(struct comedi_device * dev, struct comedi_subdevice * s,
 357         struct comedi_insn * insn, unsigned int * data)
 358 {
 359         unsigned port;
 360
 361         if (insn->n < 1)
 362                 return -EINVAL;
 363         port = sprivate(s)->base_port +
 364                 ni_65xx_port_by_channel(CR_CHAN(insn->chanspec));
 365         switch (data[0]) {
 366         case INSN_CONFIG_FILTER:
 367                 return ni_65xx_config_filter(dev, s, insn, data);
 368                 break;
 369         case INSN_CONFIG_DIO_OUTPUT:
 370                 if (s->type != COMEDI_SUBD_DIO)
 371                         return -EINVAL;
 372                 private(dev)->dio_direction[port] = COMEDI_OUTPUT;
 373                 writeb(0, private(dev)->mite->daq_io_addr + Port_Select(port));
 374                 return 1;
 375                 break;
 376         case INSN_CONFIG_DIO_INPUT:
 377                 if (s->type != COMEDI_SUBD_DIO)
 378                         return -EINVAL;
 379                 private(dev)->dio_direction[port] = COMEDI_INPUT;
 380                 writeb(1, private(dev)->mite->daq_io_addr + Port_Select(port));
 381                 return 1;
 382                 break;
 383         case INSN_CONFIG_DIO_QUERY:
 384                 if (s->type != COMEDI_SUBD_DIO)
 385                         return -EINVAL;
 386                 data[1] = private(dev)->dio_direction[port];
 387                 return insn->n;
 388                 break;
 389         default:
 390                 break;
 391         }
 392         return -EINVAL;
 393 }
 394
 395 static int ni_65xx_dio_insn_bits(struct comedi_device * dev, struct comedi_subdevice * s,
 396         struct comedi_insn * insn, unsigned int * data)
 397 {
 398         unsigned base_bitfield_channel;
 399         const unsigned max_ports_per_bitfield = 5;
 400         unsigned read_bits = 0;
 401         unsigned j;
 402         if (insn->n != 2)
 403                 return -EINVAL;
 404         base_bitfield_channel = CR_CHAN(insn->chanspec);
 405         for (j = 0; j < max_ports_per_bitfield; ++j) {
 406                 const unsigned port =
 407                         sprivate(s)->base_port +
 408                         ni_65xx_port_by_channel(base_bitfield_channel) + j;
 409                 unsigned base_port_channel;
 410                 unsigned port_mask, port_data, port_read_bits;
 411                 int bitshift;
 412                 if (port >= ni_65xx_total_num_ports(board(dev)))
 413                         break;
 414                 base_port_channel = port * ni_65xx_channels_per_port;
 415                 port_mask = data[0];
 416                 port_data = data[1];
 417                 bitshift = base_port_channel - base_bitfield_channel;
 418                 if (bitshift >= 32 || bitshift <= -32)
 419                         break;
 420                 if (bitshift > 0) {
 421                         port_mask >>= bitshift;
 422                         port_data >>= bitshift;
 423                 } else {
 424                         port_mask <<= -bitshift;
 425                         port_data <<= -bitshift;
 426                 }
 427                 port_mask &= 0xff;
 428                 port_data &= 0xff;
 429                 if (port_mask) {
 430                         unsigned bits;
 431                         private(dev)->output_bits[port] &= ~port_mask;
 432                         private(dev)->output_bits[port] |=
 433                                 port_data & port_mask;
 434                         bits = private(dev)->output_bits[port];
 435                         if (board(dev)->invert_outputs)
 436                                 bits = ~bits;
 437                         writeb(bits,
 438                                 private(dev)->mite->daq_io_addr +
 439                                 Port_Data(port));
 440 /* rt_printk("wrote 0x%x to port %i\n", bits, port); */
 441                 }
 442                 port_read_bits =
 443                         readb(private(dev)->mite->daq_io_addr +
 444                         Port_Data(port));
 445 /* rt_printk("read 0x%x from port %i\n", port_read_bits, port); */
 446                 if (bitshift > 0) {
 447                         port_read_bits <<= bitshift;
 448                 } else {
 449                         port_read_bits >>= -bitshift;
 450                 }
 451                 read_bits |= port_read_bits;
 452         }
 453         data[1] = read_bits;
 454         return insn->n;
 455 }
 456
 457 static irqreturn_t ni_65xx_interrupt(int irq, void *d)
 458 {
 459         struct comedi_device *dev = d;
 460         struct comedi_subdevice *s = dev->subdevices + 2;
 461         unsigned int status;
 462
 463         status = readb(private(dev)->mite->daq_io_addr + Change_Status);
 464         if ((status & MasterInterruptStatus) == 0)
 465                 return IRQ_NONE;
 466         if ((status & EdgeStatus) == 0)
 467                 return IRQ_NONE;
 468
 469         writeb(ClrEdge | ClrOverflow,
 470                 private(dev)->mite->daq_io_addr + Clear_Register);
 471
 472         comedi_buf_put(s->async, 0);
 473         s->async->events |= COMEDI_CB_EOS;
 474         comedi_event(dev, s);
 475         return IRQ_HANDLED;
 476 }
 477
 478 static int ni_65xx_intr_cmdtest(struct comedi_device * dev, struct comedi_subdevice * s,
 479         struct comedi_cmd * cmd)
 480 {
 481         int err = 0;
 482         int tmp;
 483
 484         /* step 1: make sure trigger sources are trivially valid */
 485
 486         tmp = cmd->start_src;
 487         cmd->start_src &= TRIG_NOW;
 488         if (!cmd->start_src || tmp != cmd->start_src)
 489                 err++;
 490
 491         tmp = cmd->scan_begin_src;
 492         cmd->scan_begin_src &= TRIG_OTHER;
 493         if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
 494                 err++;
 495
 496         tmp = cmd->convert_src;
 497         cmd->convert_src &= TRIG_FOLLOW;
 498         if (!cmd->convert_src || tmp != cmd->convert_src)
 499                 err++;
 500
 501         tmp = cmd->scan_end_src;
 502         cmd->scan_end_src &= TRIG_COUNT;
 503         if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
 504                 err++;
 505
 506         tmp = cmd->stop_src;
 507         cmd->stop_src &= TRIG_COUNT;
 508         if (!cmd->stop_src || tmp != cmd->stop_src)
 509                 err++;
 510
 511         if (err)
 512                 return 1;
 513
 514         /* step 2: make sure trigger sources are unique and mutually compatible */
 515
 516         if (err)
 517                 return 2;
 518
 519         /* step 3: make sure arguments are trivially compatible */
 520
 521         if (cmd->start_arg != 0) {
 522                 cmd->start_arg = 0;
 523                 err++;
 524         }
 525         if (cmd->scan_begin_arg != 0) {
 526                 cmd->scan_begin_arg = 0;
 527                 err++;
 528         }
 529         if (cmd->convert_arg != 0) {
 530                 cmd->convert_arg = 0;
 531                 err++;
 532         }
 533
 534         if (cmd->scan_end_arg != 1) {
 535                 cmd->scan_end_arg = 1;
 536                 err++;
 537         }
 538         if (cmd->stop_arg != 0) {
 539                 cmd->stop_arg = 0;
 540                 err++;
 541         }
 542
 543         if (err)
 544                 return 3;
 545
 546         /* step 4: fix up any arguments */
 547
 548         if (err)
 549                 return 4;
 550
 551         return 0;
 552 }
 553
 554 static int ni_65xx_intr_cmd(struct comedi_device * dev, struct comedi_subdevice * s)
 555 {
 556         /* struct comedi_cmd *cmd = &s->async->cmd; */
 557
 558         writeb(ClrEdge | ClrOverflow,
 559                 private(dev)->mite->daq_io_addr + Clear_Register);
 560         writeb(FallingEdgeIntEnable | RisingEdgeIntEnable |
 561                 MasterInterruptEnable | EdgeIntEnable,
 562                 private(dev)->mite->daq_io_addr + Master_Interrupt_Control);
 563
 564         return 0;
 565 }
 566
 567 static int ni_65xx_intr_cancel(struct comedi_device * dev, struct comedi_subdevice * s)
 568 {
 569         writeb(0x00,
 570                 private(dev)->mite->daq_io_addr + Master_Interrupt_Control);
 571
 572         return 0;
 573 }
 574
 575 static int ni_65xx_intr_insn_bits(struct comedi_device * dev, struct comedi_subdevice * s,
 576         struct comedi_insn * insn, unsigned int * data)
 577 {
 578         if (insn->n < 1)
 579                 return -EINVAL;
 580
 581         data[1] = 0;
 582         return 2;
 583 }
 584
 585 static int ni_65xx_intr_insn_config(struct comedi_device * dev, struct comedi_subdevice * s,
 586         struct comedi_insn * insn, unsigned int * data)
 587 {
 588         if (insn->n < 1)
 589                 return -EINVAL;
 590         if (data[0] != INSN_CONFIG_CHANGE_NOTIFY)
 591                 return -EINVAL;
 592
 593         writeb(data[1],
 594                 private(dev)->mite->daq_io_addr +
 595                 Rising_Edge_Detection_Enable(0));
 596         writeb(data[1] >> 8,
 597                 private(dev)->mite->daq_io_addr +
 598                 Rising_Edge_Detection_Enable(0x10));
 599         writeb(data[1] >> 16,
 600                 private(dev)->mite->daq_io_addr +
 601                 Rising_Edge_Detection_Enable(0x20));
 602         writeb(data[1] >> 24,
 603                 private(dev)->mite->daq_io_addr +
 604                 Rising_Edge_Detection_Enable(0x30));
 605
 606         writeb(data[2],
 607                 private(dev)->mite->daq_io_addr +
 608                 Falling_Edge_Detection_Enable(0));
 609         writeb(data[2] >> 8,
 610                 private(dev)->mite->daq_io_addr +
 611                 Falling_Edge_Detection_Enable(0x10));
 612         writeb(data[2] >> 16,
 613                 private(dev)->mite->daq_io_addr +
 614                 Falling_Edge_Detection_Enable(0x20));
 615         writeb(data[2] >> 24,
 616                 private(dev)->mite->daq_io_addr +
 617                 Falling_Edge_Detection_Enable(0x30));
 618
 619         return 2;
 620 }
 621
 622 static int ni_65xx_attach(struct comedi_device * dev, struct comedi_devconfig * it)
 623 {
 624         struct comedi_subdevice *s;
 625         unsigned i;
 626         int ret;
 627
 628         printk("comedi%d: ni_65xx:", dev->minor);
 629
 630         if ((ret = alloc_private(dev, sizeof(struct ni_65xx_private))) < 0)
 631                 return ret;
 632
 633         ret = ni_65xx_find_device(dev, it->options[0], it->options[1]);
 634         if (ret < 0)
 635                 return ret;
 636
 637         ret = mite_setup(private(dev)->mite);
 638         if (ret < 0) {
 639                 printk("error setting up mite\n");
 640                 return ret;
 641         }
 642
 643         dev->board_name = board(dev)->name;
 644         dev->irq = mite_irq(private(dev)->mite);
 645         printk(" %s", dev->board_name);
 646
 647         printk(" ID=0x%02x",
 648                 readb(private(dev)->mite->daq_io_addr + ID_Register));
 649
 650         if ((ret = alloc_subdevices(dev, 4)) < 0)
 651                 return ret;
 652
 653         s = dev->subdevices + 0;
 654         if (board(dev)->num_di_ports) {
 655                 s->type = COMEDI_SUBD_DI;
 656                 s->subdev_flags = SDF_READABLE;
 657                 s->n_chan =
 658                         board(dev)->num_di_ports * ni_65xx_channels_per_port;
 659                 s->range_table = &range_digital;
 660                 s->maxdata = 1;
 661                 s->insn_config = ni_65xx_dio_insn_config;
 662                 s->insn_bits = ni_65xx_dio_insn_bits;
 663                 s->private = ni_65xx_alloc_subdevice_private();
 664                 if (s->private == NULL)
 665                         return -ENOMEM;
 666                 sprivate(s)->base_port = 0;
 667         } else {
 668                 s->type = COMEDI_SUBD_UNUSED;
 669         }
 670
 671         s = dev->subdevices + 1;
 672         if (board(dev)->num_do_ports) {
 673                 s->type = COMEDI_SUBD_DO;
 674                 s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
 675                 s->n_chan =
 676                         board(dev)->num_do_ports * ni_65xx_channels_per_port;
 677                 s->range_table = &range_digital;
 678                 s->maxdata = 1;
 679                 s->insn_bits = ni_65xx_dio_insn_bits;
 680                 s->private = ni_65xx_alloc_subdevice_private();
 681                 if (s->private == NULL)
 682                         return -ENOMEM;
 683                 sprivate(s)->base_port = board(dev)->num_di_ports;
 684         } else {
 685                 s->type = COMEDI_SUBD_UNUSED;
 686         }
 687
 688         s = dev->subdevices + 2;
 689         if (board(dev)->num_dio_ports) {
 690                 s->type = COMEDI_SUBD_DIO;
 691                 s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
 692                 s->n_chan =
 693                         board(dev)->num_dio_ports * ni_65xx_channels_per_port;
 694                 s->range_table = &range_digital;
 695                 s->maxdata = 1;
 696                 s->insn_config = ni_65xx_dio_insn_config;
 697                 s->insn_bits = ni_65xx_dio_insn_bits;
 698                 s->private = ni_65xx_alloc_subdevice_private();
 699                 if (s->private == NULL)
 700                         return -ENOMEM;
 701                 sprivate(s)->base_port = 0;
 702                 for (i = 0; i < board(dev)->num_dio_ports; ++i) {
 703                         /*  configure all ports for input */
 704                         writeb(0x1,
 705                                 private(dev)->mite->daq_io_addr +
 706                                 Port_Select(i));
 707                 }
 708         } else {
 709                 s->type = COMEDI_SUBD_UNUSED;
 710         }
 711
 712         s = dev->subdevices + 3;
 713         dev->read_subdev = s;
 714         s->type = COMEDI_SUBD_DI;
 715         s->subdev_flags = SDF_READABLE | SDF_CMD_READ;
 716         s->n_chan = 1;
 717         s->range_table = &range_unknown;
 718         s->maxdata = 1;
 719         s->do_cmdtest = ni_65xx_intr_cmdtest;
 720         s->do_cmd = ni_65xx_intr_cmd;
 721         s->cancel = ni_65xx_intr_cancel;
 722         s->insn_bits = ni_65xx_intr_insn_bits;
 723         s->insn_config = ni_65xx_intr_insn_config;
 724
 725         for (i = 0; i < ni_65xx_total_num_ports(board(dev)); ++i) {
 726                 writeb(0x00,
 727                         private(dev)->mite->daq_io_addr + Filter_Enable(i));
 728                 if (board(dev)->invert_outputs)
 729                         writeb(0x01,
 730                                 private(dev)->mite->daq_io_addr + Port_Data(i));
 731                 else
 732                         writeb(0x00,
 733                                 private(dev)->mite->daq_io_addr + Port_Data(i));
 734         }
 735         writeb(ClrEdge | ClrOverflow,
 736                 private(dev)->mite->daq_io_addr + Clear_Register);
 737         writeb(0x00,
 738                 private(dev)->mite->daq_io_addr + Master_Interrupt_Control);
 739
 740         /* Set filter interval to 0  (32bit reg) */
 741         writeb(0x00000000, private(dev)->mite->daq_io_addr + Filter_Interval);
 742
 743         ret = comedi_request_irq(dev->irq, ni_65xx_interrupt, IRQF_SHARED,
 744                 "ni_65xx", dev);
 745         if (ret < 0) {
 746                 dev->irq = 0;
 747                 printk(" irq not available");
 748         }
 749
 750         printk("\n");
 751
 752         return 0;
 753 }
 754
 755 static int ni_65xx_detach(struct comedi_device * dev)
 756 {
 757         if (private(dev) && private(dev)->mite
 758                 && private(dev)->mite->daq_io_addr) {
 759                 writeb(0x00,
 760                         private(dev)->mite->daq_io_addr +
 761                         Master_Interrupt_Control);
 762         }
 763
 764         if (dev->irq) {
 765                 comedi_free_irq(dev->irq, dev);
 766         }
 767
 768         if (private(dev)) {
 769                 unsigned i;
 770                 for (i = 0; i < dev->n_subdevices; ++i) {
 771                         if (dev->subdevices[i].private) {
 772                                 kfree(dev->subdevices[i].private);
 773                                 dev->subdevices[i].private = NULL;
 774                         }
 775                 }
 776                 if (private(dev)->mite) {
 777                         mite_unsetup(private(dev)->mite);
 778                 }
 779         }
 780         return 0;
 781 }
 782
 783 static int ni_65xx_find_device(struct comedi_device * dev, int bus, int slot)
 784 {
 785         struct mite_struct *mite;
 786         int i;
 787
 788         for (mite = mite_devices; mite; mite = mite->next) {
 789                 if (mite->used)
 790                         continue;
 791                 if (bus || slot) {
 792                         if (bus != mite->pcidev->bus->number ||
 793                                 slot != PCI_SLOT(mite->pcidev->devfn))
 794                                 continue;
 795                 }
 796                 for (i = 0; i < n_ni_65xx_boards; i++) {
 797                         if (mite_device_id(mite) == ni_65xx_boards[i].dev_id) {
 798                                 dev->board_ptr = ni_65xx_boards + i;
 799                                 private(dev)->mite = mite;
 800                                 return 0;
 801                         }
 802                 }
 803         }
 804         printk("no device found\n");
 805         mite_list_devices();
 806         return -EIO;
 807 }
 808
 809 COMEDI_PCI_INITCLEANUP(driver_ni_65xx, ni_65xx_pci_table);