cb_das16_cs.c revision 9a017a910346afd88ec2e065989903bf211a7d37
1/* 2 comedi/drivers/das16cs.c 3 Driver for Computer Boards PC-CARD DAS16/16. 4 5 COMEDI - Linux Control and Measurement Device Interface 6 Copyright (C) 2000, 2001, 2002 David A. Schleef <ds@schleef.org> 7 8 This program is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 2 of the License, or 11 (at your option) any later version. 12 13 This program is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with this program; if not, write to the Free Software 20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 21 22*/ 23/* 24Driver: cb_das16_cs 25Description: Computer Boards PC-CARD DAS16/16 26Devices: [ComputerBoards] PC-CARD DAS16/16 (cb_das16_cs), PC-CARD DAS16/16-AO 27Author: ds 28Updated: Mon, 04 Nov 2002 20:04:21 -0800 29Status: experimental 30 31 32*/ 33 34#include <linux/interrupt.h> 35#include <linux/slab.h> 36#include "../comedidev.h" 37#include <linux/delay.h> 38#include <linux/pci.h> 39 40#include <pcmcia/cs.h> 41#include <pcmcia/cistpl.h> 42#include <pcmcia/ds.h> 43 44#include "8253.h" 45 46#define DAS16CS_SIZE 18 47 48#define DAS16CS_ADC_DATA 0 49#define DAS16CS_DIO_MUX 2 50#define DAS16CS_MISC1 4 51#define DAS16CS_MISC2 6 52#define DAS16CS_CTR0 8 53#define DAS16CS_CTR1 10 54#define DAS16CS_CTR2 12 55#define DAS16CS_CTR_CONTROL 14 56#define DAS16CS_DIO 16 57 58struct das16cs_board { 59 const char *name; 60 int device_id; 61 int n_ao_chans; 62}; 63static const struct das16cs_board das16cs_boards[] = { 64 { 65 .device_id = 0x0000, /* unknown */ 66 .name = "PC-CARD DAS16/16", 67 .n_ao_chans = 0, 68 }, 69 { 70 .device_id = 0x0039, 71 .name = "PC-CARD DAS16/16-AO", 72 .n_ao_chans = 2, 73 }, 74 { 75 .device_id = 0x4009, 76 .name = "PCM-DAS16s/16", 77 .n_ao_chans = 0, 78 }, 79}; 80 81#define n_boards ARRAY_SIZE(das16cs_boards) 82#define thisboard ((const struct das16cs_board *)dev->board_ptr) 83 84struct das16cs_private { 85 struct pcmcia_device *link; 86 87 unsigned int ao_readback[2]; 88 unsigned short status1; 89 unsigned short status2; 90}; 91#define devpriv ((struct das16cs_private *)dev->private) 92 93static int das16cs_attach(struct comedi_device *dev, 94 struct comedi_devconfig *it); 95static int das16cs_detach(struct comedi_device *dev); 96static struct comedi_driver driver_das16cs = { 97 .driver_name = "cb_das16_cs", 98 .module = THIS_MODULE, 99 .attach = das16cs_attach, 100 .detach = das16cs_detach, 101}; 102 103static struct pcmcia_device *cur_dev = NULL; 104 105static const struct comedi_lrange das16cs_ai_range = { 4, { 106 RANGE(-10, 10), 107 RANGE(-5, 5), 108 RANGE(-2.5, 2.5), 109 RANGE(-1.25, 1.25), 110 } 111}; 112 113static irqreturn_t das16cs_interrupt(int irq, void *d); 114static int das16cs_ai_rinsn(struct comedi_device *dev, 115 struct comedi_subdevice *s, 116 struct comedi_insn *insn, unsigned int *data); 117static int das16cs_ai_cmd(struct comedi_device *dev, 118 struct comedi_subdevice *s); 119static int das16cs_ai_cmdtest(struct comedi_device *dev, 120 struct comedi_subdevice *s, 121 struct comedi_cmd *cmd); 122static int das16cs_ao_winsn(struct comedi_device *dev, 123 struct comedi_subdevice *s, 124 struct comedi_insn *insn, unsigned int *data); 125static int das16cs_ao_rinsn(struct comedi_device *dev, 126 struct comedi_subdevice *s, 127 struct comedi_insn *insn, unsigned int *data); 128static int das16cs_dio_insn_bits(struct comedi_device *dev, 129 struct comedi_subdevice *s, 130 struct comedi_insn *insn, unsigned int *data); 131static int das16cs_dio_insn_config(struct comedi_device *dev, 132 struct comedi_subdevice *s, 133 struct comedi_insn *insn, 134 unsigned int *data); 135static int das16cs_timer_insn_read(struct comedi_device *dev, 136 struct comedi_subdevice *s, 137 struct comedi_insn *insn, 138 unsigned int *data); 139static int das16cs_timer_insn_config(struct comedi_device *dev, 140 struct comedi_subdevice *s, 141 struct comedi_insn *insn, 142 unsigned int *data); 143 144static const struct das16cs_board *das16cs_probe(struct comedi_device *dev, 145 struct pcmcia_device *link) 146{ 147 int i; 148 149 for (i = 0; i < n_boards; i++) { 150 if (das16cs_boards[i].device_id == link->card_id) 151 return das16cs_boards + i; 152 } 153 154 printk("unknown board!\n"); 155 156 return NULL; 157} 158 159static int das16cs_attach(struct comedi_device *dev, 160 struct comedi_devconfig *it) 161{ 162 struct pcmcia_device *link; 163 struct comedi_subdevice *s; 164 int ret; 165 int i; 166 167 printk("comedi%d: cb_das16_cs: ", dev->minor); 168 169 link = cur_dev; /* XXX hack */ 170 if (!link) 171 return -EIO; 172 173 dev->iobase = link->resource[0]->start;; 174 printk("I/O base=0x%04lx ", dev->iobase); 175 176 printk("fingerprint:\n"); 177 for (i = 0; i < 48; i += 2) 178 printk("%04x ", inw(dev->iobase + i)); 179 180 printk("\n"); 181 182 ret = request_irq(link->irq, das16cs_interrupt, 183 IRQF_SHARED, "cb_das16_cs", dev); 184 if (ret < 0) 185 return ret; 186 187 dev->irq = link->irq; 188 189 printk("irq=%u ", dev->irq); 190 191 dev->board_ptr = das16cs_probe(dev, link); 192 if (!dev->board_ptr) 193 return -EIO; 194 195 dev->board_name = thisboard->name; 196 197 if (alloc_private(dev, sizeof(struct das16cs_private)) < 0) 198 return -ENOMEM; 199 200 if (alloc_subdevices(dev, 4) < 0) 201 return -ENOMEM; 202 203 s = dev->subdevices + 0; 204 dev->read_subdev = s; 205 /* analog input subdevice */ 206 s->type = COMEDI_SUBD_AI; 207 s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DIFF | SDF_CMD_READ; 208 s->n_chan = 16; 209 s->maxdata = 0xffff; 210 s->range_table = &das16cs_ai_range; 211 s->len_chanlist = 16; 212 s->insn_read = das16cs_ai_rinsn; 213 s->do_cmd = das16cs_ai_cmd; 214 s->do_cmdtest = das16cs_ai_cmdtest; 215 216 s = dev->subdevices + 1; 217 /* analog output subdevice */ 218 if (thisboard->n_ao_chans) { 219 s->type = COMEDI_SUBD_AO; 220 s->subdev_flags = SDF_WRITABLE; 221 s->n_chan = thisboard->n_ao_chans; 222 s->maxdata = 0xffff; 223 s->range_table = &range_bipolar10; 224 s->insn_write = &das16cs_ao_winsn; 225 s->insn_read = &das16cs_ao_rinsn; 226 } 227 228 s = dev->subdevices + 2; 229 /* digital i/o subdevice */ 230 if (1) { 231 s->type = COMEDI_SUBD_DIO; 232 s->subdev_flags = SDF_READABLE | SDF_WRITABLE; 233 s->n_chan = 8; 234 s->maxdata = 1; 235 s->range_table = &range_digital; 236 s->insn_bits = das16cs_dio_insn_bits; 237 s->insn_config = das16cs_dio_insn_config; 238 } else { 239 s->type = COMEDI_SUBD_UNUSED; 240 } 241 242 s = dev->subdevices + 3; 243 /* timer subdevice */ 244 if (0) { 245 s->type = COMEDI_SUBD_TIMER; 246 s->subdev_flags = SDF_READABLE | SDF_WRITABLE; 247 s->n_chan = 1; 248 s->maxdata = 0xff; 249 s->range_table = &range_unknown; 250 s->insn_read = das16cs_timer_insn_read; 251 s->insn_config = das16cs_timer_insn_config; 252 } else { 253 s->type = COMEDI_SUBD_UNUSED; 254 } 255 256 printk("attached\n"); 257 258 return 1; 259} 260 261static int das16cs_detach(struct comedi_device *dev) 262{ 263 printk("comedi%d: das16cs: remove\n", dev->minor); 264 265 if (dev->irq) 266 free_irq(dev->irq, dev); 267 268 269 return 0; 270} 271 272static irqreturn_t das16cs_interrupt(int irq, void *d) 273{ 274 /* struct comedi_device *dev = d; */ 275 return IRQ_HANDLED; 276} 277 278/* 279 * "instructions" read/write data in "one-shot" or "software-triggered" 280 * mode. 281 */ 282static int das16cs_ai_rinsn(struct comedi_device *dev, 283 struct comedi_subdevice *s, 284 struct comedi_insn *insn, unsigned int *data) 285{ 286 int i; 287 int to; 288 int aref; 289 int range; 290 int chan; 291 static int range_bits[] = { 0x800, 0x000, 0x100, 0x200 }; 292 293 chan = CR_CHAN(insn->chanspec); 294 aref = CR_AREF(insn->chanspec); 295 range = CR_RANGE(insn->chanspec); 296 297 outw(chan, dev->iobase + 2); 298 299 devpriv->status1 &= ~0xf320; 300 devpriv->status1 |= (aref == AREF_DIFF) ? 0 : 0x0020; 301 outw(devpriv->status1, dev->iobase + 4); 302 303 devpriv->status2 &= ~0xff00; 304 devpriv->status2 |= range_bits[range]; 305 outw(devpriv->status2, dev->iobase + 6); 306 307 for (i = 0; i < insn->n; i++) { 308 outw(0, dev->iobase); 309 310#define TIMEOUT 1000 311 for (to = 0; to < TIMEOUT; to++) { 312 if (inw(dev->iobase + 4) & 0x0080) 313 break; 314 } 315 if (to == TIMEOUT) { 316 printk("cb_das16_cs: ai timeout\n"); 317 return -ETIME; 318 } 319 data[i] = (unsigned short)inw(dev->iobase + 0); 320 } 321 322 return i; 323} 324 325static int das16cs_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) 326{ 327 return -EINVAL; 328} 329 330static int das16cs_ai_cmdtest(struct comedi_device *dev, 331 struct comedi_subdevice *s, 332 struct comedi_cmd *cmd) 333{ 334 int err = 0; 335 int tmp; 336 337 /* cmdtest tests a particular command to see if it is valid. 338 * Using the cmdtest ioctl, a user can create a valid cmd 339 * and then have it executes by the cmd ioctl. 340 * 341 * cmdtest returns 1,2,3,4 or 0, depending on which tests 342 * the command passes. */ 343 344 /* step 1: make sure trigger sources are trivially valid */ 345 346 tmp = cmd->start_src; 347 cmd->start_src &= TRIG_NOW; 348 if (!cmd->start_src || tmp != cmd->start_src) 349 err++; 350 351 tmp = cmd->scan_begin_src; 352 cmd->scan_begin_src &= TRIG_TIMER | TRIG_EXT; 353 if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src) 354 err++; 355 356 tmp = cmd->convert_src; 357 cmd->convert_src &= TRIG_TIMER | TRIG_EXT; 358 if (!cmd->convert_src || tmp != cmd->convert_src) 359 err++; 360 361 tmp = cmd->scan_end_src; 362 cmd->scan_end_src &= TRIG_COUNT; 363 if (!cmd->scan_end_src || tmp != cmd->scan_end_src) 364 err++; 365 366 tmp = cmd->stop_src; 367 cmd->stop_src &= TRIG_COUNT | TRIG_NONE; 368 if (!cmd->stop_src || tmp != cmd->stop_src) 369 err++; 370 371 if (err) 372 return 1; 373 374 /* step 2: make sure trigger sources are unique and mutually compatible */ 375 376 /* note that mutual compatibility is not an issue here */ 377 if (cmd->scan_begin_src != TRIG_TIMER && 378 cmd->scan_begin_src != TRIG_EXT) 379 err++; 380 if (cmd->convert_src != TRIG_TIMER && cmd->convert_src != TRIG_EXT) 381 err++; 382 if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE) 383 err++; 384 385 if (err) 386 return 2; 387 388 /* step 3: make sure arguments are trivially compatible */ 389 390 if (cmd->start_arg != 0) { 391 cmd->start_arg = 0; 392 err++; 393 } 394#define MAX_SPEED 10000 /* in nanoseconds */ 395#define MIN_SPEED 1000000000 /* in nanoseconds */ 396 397 if (cmd->scan_begin_src == TRIG_TIMER) { 398 if (cmd->scan_begin_arg < MAX_SPEED) { 399 cmd->scan_begin_arg = MAX_SPEED; 400 err++; 401 } 402 if (cmd->scan_begin_arg > MIN_SPEED) { 403 cmd->scan_begin_arg = MIN_SPEED; 404 err++; 405 } 406 } else { 407 /* external trigger */ 408 /* should be level/edge, hi/lo specification here */ 409 /* should specify multiple external triggers */ 410 if (cmd->scan_begin_arg > 9) { 411 cmd->scan_begin_arg = 9; 412 err++; 413 } 414 } 415 if (cmd->convert_src == TRIG_TIMER) { 416 if (cmd->convert_arg < MAX_SPEED) { 417 cmd->convert_arg = MAX_SPEED; 418 err++; 419 } 420 if (cmd->convert_arg > MIN_SPEED) { 421 cmd->convert_arg = MIN_SPEED; 422 err++; 423 } 424 } else { 425 /* external trigger */ 426 /* see above */ 427 if (cmd->convert_arg > 9) { 428 cmd->convert_arg = 9; 429 err++; 430 } 431 } 432 433 if (cmd->scan_end_arg != cmd->chanlist_len) { 434 cmd->scan_end_arg = cmd->chanlist_len; 435 err++; 436 } 437 if (cmd->stop_src == TRIG_COUNT) { 438 if (cmd->stop_arg > 0x00ffffff) { 439 cmd->stop_arg = 0x00ffffff; 440 err++; 441 } 442 } else { 443 /* TRIG_NONE */ 444 if (cmd->stop_arg != 0) { 445 cmd->stop_arg = 0; 446 err++; 447 } 448 } 449 450 if (err) 451 return 3; 452 453 /* step 4: fix up any arguments */ 454 455 if (cmd->scan_begin_src == TRIG_TIMER) { 456 unsigned int div1 = 0, div2 = 0; 457 458 tmp = cmd->scan_begin_arg; 459 i8253_cascade_ns_to_timer(100, &div1, &div2, 460 &cmd->scan_begin_arg, 461 cmd->flags & TRIG_ROUND_MASK); 462 if (tmp != cmd->scan_begin_arg) 463 err++; 464 } 465 if (cmd->convert_src == TRIG_TIMER) { 466 unsigned int div1 = 0, div2 = 0; 467 468 tmp = cmd->convert_arg; 469 i8253_cascade_ns_to_timer(100, &div1, &div2, 470 &cmd->scan_begin_arg, 471 cmd->flags & TRIG_ROUND_MASK); 472 if (tmp != cmd->convert_arg) 473 err++; 474 if (cmd->scan_begin_src == TRIG_TIMER && 475 cmd->scan_begin_arg < 476 cmd->convert_arg * cmd->scan_end_arg) { 477 cmd->scan_begin_arg = 478 cmd->convert_arg * cmd->scan_end_arg; 479 err++; 480 } 481 } 482 483 if (err) 484 return 4; 485 486 return 0; 487} 488 489static int das16cs_ao_winsn(struct comedi_device *dev, 490 struct comedi_subdevice *s, 491 struct comedi_insn *insn, unsigned int *data) 492{ 493 int i; 494 int chan = CR_CHAN(insn->chanspec); 495 unsigned short status1; 496 unsigned short d; 497 int bit; 498 499 for (i = 0; i < insn->n; i++) { 500 devpriv->ao_readback[chan] = data[i]; 501 d = data[i]; 502 503 outw(devpriv->status1, dev->iobase + 4); 504 udelay(1); 505 506 status1 = devpriv->status1 & ~0xf; 507 if (chan) 508 status1 |= 0x0001; 509 else 510 status1 |= 0x0008; 511 512/* printk("0x%04x\n",status1);*/ 513 outw(status1, dev->iobase + 4); 514 udelay(1); 515 516 for (bit = 15; bit >= 0; bit--) { 517 int b = (d >> bit) & 0x1; 518 b <<= 1; 519/* printk("0x%04x\n",status1 | b | 0x0000);*/ 520 outw(status1 | b | 0x0000, dev->iobase + 4); 521 udelay(1); 522/* printk("0x%04x\n",status1 | b | 0x0004);*/ 523 outw(status1 | b | 0x0004, dev->iobase + 4); 524 udelay(1); 525 } 526/* make high both DAC0CS and DAC1CS to load 527 new data and update analog output*/ 528 outw(status1 | 0x9, dev->iobase + 4); 529 } 530 531 return i; 532} 533 534/* AO subdevices should have a read insn as well as a write insn. 535 * Usually this means copying a value stored in devpriv. */ 536static int das16cs_ao_rinsn(struct comedi_device *dev, 537 struct comedi_subdevice *s, 538 struct comedi_insn *insn, unsigned int *data) 539{ 540 int i; 541 int chan = CR_CHAN(insn->chanspec); 542 543 for (i = 0; i < insn->n; i++) 544 data[i] = devpriv->ao_readback[chan]; 545 546 return i; 547} 548 549/* DIO devices are slightly special. Although it is possible to 550 * implement the insn_read/insn_write interface, it is much more 551 * useful to applications if you implement the insn_bits interface. 552 * This allows packed reading/writing of the DIO channels. The 553 * comedi core can convert between insn_bits and insn_read/write */ 554static int das16cs_dio_insn_bits(struct comedi_device *dev, 555 struct comedi_subdevice *s, 556 struct comedi_insn *insn, unsigned int *data) 557{ 558 if (insn->n != 2) 559 return -EINVAL; 560 561 if (data[0]) { 562 s->state &= ~data[0]; 563 s->state |= data[0] & data[1]; 564 565 outw(s->state, dev->iobase + 16); 566 } 567 568 /* on return, data[1] contains the value of the digital 569 * input and output lines. */ 570 data[1] = inw(dev->iobase + 16); 571 572 return 2; 573} 574 575static int das16cs_dio_insn_config(struct comedi_device *dev, 576 struct comedi_subdevice *s, 577 struct comedi_insn *insn, unsigned int *data) 578{ 579 int chan = CR_CHAN(insn->chanspec); 580 int bits; 581 582 if (chan < 4) 583 bits = 0x0f; 584 else 585 bits = 0xf0; 586 587 switch (data[0]) { 588 case INSN_CONFIG_DIO_OUTPUT: 589 s->io_bits |= bits; 590 break; 591 case INSN_CONFIG_DIO_INPUT: 592 s->io_bits &= bits; 593 break; 594 case INSN_CONFIG_DIO_QUERY: 595 data[1] = 596 (s->io_bits & (1 << chan)) ? COMEDI_OUTPUT : COMEDI_INPUT; 597 return insn->n; 598 break; 599 default: 600 return -EINVAL; 601 break; 602 } 603 604 devpriv->status2 &= ~0x00c0; 605 devpriv->status2 |= (s->io_bits & 0xf0) ? 0x0080 : 0; 606 devpriv->status2 |= (s->io_bits & 0x0f) ? 0x0040 : 0; 607 608 outw(devpriv->status2, dev->iobase + 6); 609 610 return insn->n; 611} 612 613static int das16cs_timer_insn_read(struct comedi_device *dev, 614 struct comedi_subdevice *s, 615 struct comedi_insn *insn, unsigned int *data) 616{ 617 return -EINVAL; 618} 619 620static int das16cs_timer_insn_config(struct comedi_device *dev, 621 struct comedi_subdevice *s, 622 struct comedi_insn *insn, 623 unsigned int *data) 624{ 625 return -EINVAL; 626} 627 628/* PCMCIA stuff */ 629 630/*====================================================================== 631 632 The following pcmcia code for the pcm-das08 is adapted from the 633 dummy_cs.c driver of the Linux PCMCIA Card Services package. 634 635 The initial developer of the original code is David A. Hinds 636 <dahinds@users.sourceforge.net>. Portions created by David A. Hinds 637 are Copyright (C) 1999 David A. Hinds. All Rights Reserved. 638 639======================================================================*/ 640 641#if defined(CONFIG_PCMCIA) || defined(CONFIG_PCMCIA_MODULE) 642 643static void das16cs_pcmcia_config(struct pcmcia_device *link); 644static void das16cs_pcmcia_release(struct pcmcia_device *link); 645static int das16cs_pcmcia_suspend(struct pcmcia_device *p_dev); 646static int das16cs_pcmcia_resume(struct pcmcia_device *p_dev); 647 648/* 649 The attach() and detach() entry points are used to create and destroy 650 "instances" of the driver, where each instance represents everything 651 needed to manage one actual PCMCIA card. 652*/ 653 654static int das16cs_pcmcia_attach(struct pcmcia_device *); 655static void das16cs_pcmcia_detach(struct pcmcia_device *); 656 657/* 658 You'll also need to prototype all the functions that will actually 659 be used to talk to your device. See 'memory_cs' for a good example 660 of a fully self-sufficient driver; the other drivers rely more or 661 less on other parts of the kernel. 662*/ 663 664/* 665 The dev_info variable is the "key" that is used to match up this 666 device driver with appropriate cards, through the card configuration 667 database. 668*/ 669 670static dev_info_t dev_info = "cb_das16_cs"; 671 672struct local_info_t { 673 struct pcmcia_device *link; 674 int stop; 675 struct bus_operations *bus; 676}; 677 678/*====================================================================== 679 680 das16cs_pcmcia_attach() creates an "instance" of the driver, allocating 681 local data structures for one device. The device is registered 682 with Card Services. 683 684 The dev_link structure is initialized, but we don't actually 685 configure the card at this point -- we wait until we receive a 686 card insertion event. 687 688======================================================================*/ 689 690static int das16cs_pcmcia_attach(struct pcmcia_device *link) 691{ 692 struct local_info_t *local; 693 694 dev_dbg(&link->dev, "das16cs_pcmcia_attach()\n"); 695 696 /* Allocate space for private device-specific data */ 697 local = kzalloc(sizeof(struct local_info_t), GFP_KERNEL); 698 if (!local) 699 return -ENOMEM; 700 local->link = link; 701 link->priv = local; 702 703 /* Initialize the pcmcia_device structure */ 704 link->conf.Attributes = 0; 705 link->conf.IntType = INT_MEMORY_AND_IO; 706 707 cur_dev = link; 708 709 das16cs_pcmcia_config(link); 710 711 return 0; 712} /* das16cs_pcmcia_attach */ 713 714static void das16cs_pcmcia_detach(struct pcmcia_device *link) 715{ 716 dev_dbg(&link->dev, "das16cs_pcmcia_detach\n"); 717 718 ((struct local_info_t *)link->priv)->stop = 1; 719 das16cs_pcmcia_release(link); 720 /* This points to the parent struct local_info_t struct */ 721 if (link->priv) 722 kfree(link->priv); 723} /* das16cs_pcmcia_detach */ 724 725 726static int das16cs_pcmcia_config_loop(struct pcmcia_device *p_dev, 727 cistpl_cftable_entry_t *cfg, 728 cistpl_cftable_entry_t *dflt, 729 unsigned int vcc, 730 void *priv_data) 731{ 732 if (cfg->index == 0) 733 return -EINVAL; 734 735 /* Do we need to allocate an interrupt? */ 736 p_dev->conf.Attributes |= CONF_ENABLE_IRQ; 737 738 /* IO window settings */ 739 p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; 740 if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) { 741 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io; 742 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; 743 if (!(io->flags & CISTPL_IO_8BIT)) 744 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_16; 745 if (!(io->flags & CISTPL_IO_16BIT)) 746 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; 747 p_dev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK; 748 p_dev->io.BasePort1 = io->win[0].base; 749 p_dev->io.NumPorts1 = io->win[0].len; 750 if (io->nwin > 1) { 751 p_dev->io.Attributes2 = p_dev->io.Attributes1; 752 p_dev->io.BasePort2 = io->win[1].base; 753 p_dev->io.NumPorts2 = io->win[1].len; 754 } 755 /* This reserves IO space but doesn't actually enable it */ 756 return pcmcia_request_io(p_dev, &p_dev->io); 757 } 758 759 return 0; 760} 761 762static void das16cs_pcmcia_config(struct pcmcia_device *link) 763{ 764 int ret; 765 766 dev_dbg(&link->dev, "das16cs_pcmcia_config\n"); 767 768 ret = pcmcia_loop_config(link, das16cs_pcmcia_config_loop, NULL); 769 if (ret) { 770 dev_warn(&link->dev, "no configuration found\n"); 771 goto failed; 772 } 773 774 if (!link->irq) 775 goto failed; 776 777 /* 778 This actually configures the PCMCIA socket -- setting up 779 the I/O windows and the interrupt mapping, and putting the 780 card and host interface into "Memory and IO" mode. 781 */ 782 ret = pcmcia_request_configuration(link, &link->conf); 783 if (ret) 784 goto failed; 785 786 /* Finally, report what we've done */ 787 dev_info(&link->dev, "index 0x%02x", link->conf.ConfigIndex); 788 if (link->conf.Attributes & CONF_ENABLE_IRQ) 789 printk(", irq %u", link->irq); 790 if (link->resource[0]) 791 printk(", io %pR", link->resource[0]); 792 if (link->resource[1]) 793 printk(", io %pR", link->resource[1]); 794 printk("\n"); 795 796 return; 797 798failed: 799 das16cs_pcmcia_release(link); 800} /* das16cs_pcmcia_config */ 801 802static void das16cs_pcmcia_release(struct pcmcia_device *link) 803{ 804 dev_dbg(&link->dev, "das16cs_pcmcia_release\n"); 805 pcmcia_disable_device(link); 806} /* das16cs_pcmcia_release */ 807 808static int das16cs_pcmcia_suspend(struct pcmcia_device *link) 809{ 810 struct local_info_t *local = link->priv; 811 812 /* Mark the device as stopped, to block IO until later */ 813 local->stop = 1; 814 815 return 0; 816} /* das16cs_pcmcia_suspend */ 817 818static int das16cs_pcmcia_resume(struct pcmcia_device *link) 819{ 820 struct local_info_t *local = link->priv; 821 822 local->stop = 0; 823 return 0; 824} /* das16cs_pcmcia_resume */ 825 826/*====================================================================*/ 827 828static struct pcmcia_device_id das16cs_id_table[] = { 829 PCMCIA_DEVICE_MANF_CARD(0x01c5, 0x0039), 830 PCMCIA_DEVICE_MANF_CARD(0x01c5, 0x4009), 831 PCMCIA_DEVICE_NULL 832}; 833 834MODULE_DEVICE_TABLE(pcmcia, das16cs_id_table); 835MODULE_AUTHOR("David A. Schleef <ds@schleef.org>"); 836MODULE_DESCRIPTION("Comedi driver for Computer Boards PC-CARD DAS16/16"); 837MODULE_LICENSE("GPL"); 838 839struct pcmcia_driver das16cs_driver = { 840 .probe = das16cs_pcmcia_attach, 841 .remove = das16cs_pcmcia_detach, 842 .suspend = das16cs_pcmcia_suspend, 843 .resume = das16cs_pcmcia_resume, 844 .id_table = das16cs_id_table, 845 .owner = THIS_MODULE, 846 .drv = { 847 .name = dev_info, 848 }, 849}; 850 851static int __init init_das16cs_pcmcia_cs(void) 852{ 853 pcmcia_register_driver(&das16cs_driver); 854 return 0; 855} 856 857static void __exit exit_das16cs_pcmcia_cs(void) 858{ 859 pr_debug("das16cs_pcmcia_cs: unloading\n"); 860 pcmcia_unregister_driver(&das16cs_driver); 861} 862 863int __init init_module(void) 864{ 865 int ret; 866 867 ret = init_das16cs_pcmcia_cs(); 868 if (ret < 0) 869 return ret; 870 871 return comedi_driver_register(&driver_das16cs); 872} 873 874void __exit cleanup_module(void) 875{ 876 exit_das16cs_pcmcia_cs(); 877 comedi_driver_unregister(&driver_das16cs); 878} 879 880#else 881COMEDI_INITCLEANUP(driver_das16cs); 882#endif /* CONFIG_PCMCIA */ 883