ni_daq_700.c revision 868575d1e87ff2091800aea816972ddb46de60d5
1/* 2 * comedi/drivers/ni_daq_700.c 3 * Driver for DAQCard-700 DIO only 4 * copied from 8255 5 * 6 * COMEDI - Linux Control and Measurement Device Interface 7 * Copyright (C) 1998 David A. Schleef <ds@schleef.org> 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 22 * 23 */ 24 25/* 26Driver: ni_daq_700 27Description: National Instruments PCMCIA DAQCard-700 DIO only 28Author: Fred Brooks <nsaspook@nsaspook.com>, 29 based on ni_daq_dio24 by Daniel Vecino Castel <dvecino@able.es> 30Devices: [National Instruments] PCMCIA DAQ-Card-700 (ni_daq_700) 31Status: works 32Updated: Thu, 21 Feb 2008 12:07:20 +0000 33 34The daqcard-700 appears in Comedi as a single digital I/O subdevice with 3516 channels. The channel 0 corresponds to the daqcard-700's output 36port, bit 0; channel 8 corresponds to the input port, bit 0. 37 38Direction configuration: channels 0-7 output, 8-15 input (8225 device 39emu as port A output, port B input, port C N/A). 40 41IRQ is assigned but not used. 42*/ 43 44#include <linux/interrupt.h> 45#include "../comedidev.h" 46 47#include <linux/ioport.h> 48 49#include <pcmcia/cs_types.h> 50#include <pcmcia/cs.h> 51#include <pcmcia/cistpl.h> 52#include <pcmcia/cisreg.h> 53#include <pcmcia/ds.h> 54 55static struct pcmcia_device *pcmcia_cur_dev = NULL; 56 57#define DIO700_SIZE 8 /* size of io region used by board */ 58 59static int dio700_attach(struct comedi_device *dev, 60 struct comedi_devconfig *it); 61static int dio700_detach(struct comedi_device *dev); 62 63enum dio700_bustype { pcmcia_bustype }; 64 65struct dio700_board { 66 const char *name; 67 int device_id; /* device id for pcmcia board */ 68 enum dio700_bustype bustype; /* PCMCIA */ 69 int have_dio; /* have daqcard-700 dio */ 70 /* function pointers so we can use inb/outb or readb/writeb */ 71 /* as appropriate */ 72 unsigned int (*read_byte) (unsigned int address); 73 void (*write_byte) (unsigned int byte, unsigned int address); 74}; 75 76static const struct dio700_board dio700_boards[] = { 77 { 78 .name = "daqcard-700", 79 .device_id = 0x4743, /* 0x10b is manufacturer id, 0x4743 is device id */ 80 .bustype = pcmcia_bustype, 81 .have_dio = 1, 82 }, 83 { 84 .name = "ni_daq_700", 85 .device_id = 0x4743, /* 0x10b is manufacturer id, 0x4743 is device id */ 86 .bustype = pcmcia_bustype, 87 .have_dio = 1, 88 }, 89}; 90 91/* 92 * Useful for shorthand access to the particular board structure 93 */ 94#define thisboard ((const struct dio700_board *)dev->board_ptr) 95 96struct dio700_private { 97 98 int data; /* number of data points left to be taken */ 99}; 100 101#define devpriv ((struct dio700_private *)dev->private) 102 103static struct comedi_driver driver_dio700 = { 104 .driver_name = "ni_daq_700", 105 .module = THIS_MODULE, 106 .attach = dio700_attach, 107 .detach = dio700_detach, 108 .num_names = ARRAY_SIZE(dio700_boards), 109 .board_name = &dio700_boards[0].name, 110 .offset = sizeof(struct dio700_board), 111}; 112 113/* the real driver routines */ 114 115#define _700_SIZE 8 116 117#define _700_DATA 0 118 119#define DIO_W 0x04 120#define DIO_R 0x05 121 122struct subdev_700_struct { 123 unsigned long cb_arg; 124 int (*cb_func) (int, int, int, unsigned long); 125 int have_irq; 126}; 127 128#define CALLBACK_ARG (((struct subdev_700_struct *)s->private)->cb_arg) 129#define CALLBACK_FUNC (((struct subdev_700_struct *)s->private)->cb_func) 130#define subdevpriv ((struct subdev_700_struct *)s->private) 131 132static void do_config(struct comedi_device *dev, struct comedi_subdevice *s); 133 134void subdev_700_interrupt(struct comedi_device *dev, struct comedi_subdevice *s) 135{ 136 short d; 137 138 d = CALLBACK_FUNC(0, _700_DATA, 0, CALLBACK_ARG); 139 140 comedi_buf_put(s->async, d); 141 s->async->events |= COMEDI_CB_EOS; 142 143 comedi_event(dev, s); 144} 145 146static int subdev_700_cb(int dir, int port, int data, unsigned long arg) 147{ 148 /* port is always A for output and B for input (8255 emu) */ 149 unsigned long iobase = arg; 150 151 if (dir) { 152 outb(data, iobase + DIO_W); 153 return 0; 154 } else { 155 return inb(iobase + DIO_R); 156 } 157} 158 159static int subdev_700_insn(struct comedi_device *dev, 160 struct comedi_subdevice *s, struct comedi_insn *insn, 161 unsigned int *data) 162{ 163 if (data[0]) { 164 s->state &= ~data[0]; 165 s->state |= (data[0] & data[1]); 166 167 if (data[0] & 0xff) 168 CALLBACK_FUNC(1, _700_DATA, s->state & 0xff, 169 CALLBACK_ARG); 170 } 171 172 data[1] = s->state & 0xff; 173 data[1] |= CALLBACK_FUNC(0, _700_DATA, 0, CALLBACK_ARG) << 8; 174 175 return 2; 176} 177 178static int subdev_700_insn_config(struct comedi_device *dev, 179 struct comedi_subdevice *s, 180 struct comedi_insn *insn, unsigned int *data) 181{ 182 183 switch (data[0]) { 184 case INSN_CONFIG_DIO_INPUT: 185 break; 186 case INSN_CONFIG_DIO_OUTPUT: 187 break; 188 case INSN_CONFIG_DIO_QUERY: 189 data[1] = 190 (s-> 191 io_bits & (1 << CR_CHAN(insn->chanspec))) ? COMEDI_OUTPUT : 192 COMEDI_INPUT; 193 return insn->n; 194 break; 195 default: 196 return -EINVAL; 197 } 198 199 return 1; 200} 201 202static void do_config(struct comedi_device *dev, struct comedi_subdevice *s) 203{ /* use powerup defaults */ 204 return; 205} 206 207static int subdev_700_cmdtest(struct comedi_device *dev, 208 struct comedi_subdevice *s, 209 struct comedi_cmd *cmd) 210{ 211 int err = 0; 212 unsigned int tmp; 213 214 /* step 1 */ 215 216 tmp = cmd->start_src; 217 cmd->start_src &= TRIG_NOW; 218 if (!cmd->start_src || tmp != cmd->start_src) 219 err++; 220 221 tmp = cmd->scan_begin_src; 222 cmd->scan_begin_src &= TRIG_EXT; 223 if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src) 224 err++; 225 226 tmp = cmd->convert_src; 227 cmd->convert_src &= TRIG_FOLLOW; 228 if (!cmd->convert_src || tmp != cmd->convert_src) 229 err++; 230 231 tmp = cmd->scan_end_src; 232 cmd->scan_end_src &= TRIG_COUNT; 233 if (!cmd->scan_end_src || tmp != cmd->scan_end_src) 234 err++; 235 236 tmp = cmd->stop_src; 237 cmd->stop_src &= TRIG_NONE; 238 if (!cmd->stop_src || tmp != cmd->stop_src) 239 err++; 240 241 if (err) 242 return 1; 243 244 /* step 2 */ 245 246 if (err) 247 return 2; 248 249 /* step 3 */ 250 251 if (cmd->start_arg != 0) { 252 cmd->start_arg = 0; 253 err++; 254 } 255 if (cmd->scan_begin_arg != 0) { 256 cmd->scan_begin_arg = 0; 257 err++; 258 } 259 if (cmd->convert_arg != 0) { 260 cmd->convert_arg = 0; 261 err++; 262 } 263 if (cmd->scan_end_arg != 1) { 264 cmd->scan_end_arg = 1; 265 err++; 266 } 267 if (cmd->stop_arg != 0) { 268 cmd->stop_arg = 0; 269 err++; 270 } 271 272 if (err) 273 return 3; 274 275 /* step 4 */ 276 277 if (err) 278 return 4; 279 280 return 0; 281} 282 283static int subdev_700_cmd(struct comedi_device *dev, struct comedi_subdevice *s) 284{ 285 /* FIXME */ 286 287 return 0; 288} 289 290static int subdev_700_cancel(struct comedi_device *dev, 291 struct comedi_subdevice *s) 292{ 293 /* FIXME */ 294 295 return 0; 296} 297 298int subdev_700_init(struct comedi_device *dev, struct comedi_subdevice *s, 299 int (*cb) (int, int, int, unsigned long), unsigned long arg) 300{ 301 s->type = COMEDI_SUBD_DIO; 302 s->subdev_flags = SDF_READABLE | SDF_WRITABLE; 303 s->n_chan = 16; 304 s->range_table = &range_digital; 305 s->maxdata = 1; 306 307 s->private = kmalloc(sizeof(struct subdev_700_struct), GFP_KERNEL); 308 if (!s->private) 309 return -ENOMEM; 310 311 CALLBACK_ARG = arg; 312 if (cb == NULL) { 313 CALLBACK_FUNC = subdev_700_cb; 314 } else { 315 CALLBACK_FUNC = cb; 316 } 317 s->insn_bits = subdev_700_insn; 318 s->insn_config = subdev_700_insn_config; 319 320 s->state = 0; 321 s->io_bits = 0x00ff; 322 do_config(dev, s); 323 324 return 0; 325} 326 327int subdev_700_init_irq(struct comedi_device *dev, struct comedi_subdevice *s, 328 int (*cb) (int, int, int, unsigned long), 329 unsigned long arg) 330{ 331 int ret; 332 333 ret = subdev_700_init(dev, s, cb, arg); 334 if (ret < 0) 335 return ret; 336 337 s->do_cmdtest = subdev_700_cmdtest; 338 s->do_cmd = subdev_700_cmd; 339 s->cancel = subdev_700_cancel; 340 341 subdevpriv->have_irq = 1; 342 343 return 0; 344} 345 346void subdev_700_cleanup(struct comedi_device *dev, struct comedi_subdevice *s) 347{ 348 if (s->private) { 349 if (subdevpriv->have_irq) { 350 } 351 352 kfree(s->private); 353 } 354} 355 356EXPORT_SYMBOL(subdev_700_init); 357EXPORT_SYMBOL(subdev_700_init_irq); 358EXPORT_SYMBOL(subdev_700_cleanup); 359EXPORT_SYMBOL(subdev_700_interrupt); 360 361static int dio700_attach(struct comedi_device *dev, struct comedi_devconfig *it) 362{ 363 struct comedi_subdevice *s; 364 unsigned long iobase = 0; 365#ifdef incomplete 366 unsigned int irq = 0; 367#endif 368 struct pcmcia_device *link; 369 370 /* allocate and initialize dev->private */ 371 if (alloc_private(dev, sizeof(struct dio700_private)) < 0) 372 return -ENOMEM; 373 374 /* get base address, irq etc. based on bustype */ 375 switch (thisboard->bustype) { 376 case pcmcia_bustype: 377 link = pcmcia_cur_dev; /* XXX hack */ 378 if (!link) 379 return -EIO; 380 iobase = link->io.BasePort1; 381#ifdef incomplete 382 irq = link->irq.AssignedIRQ; 383#endif 384 break; 385 default: 386 printk("bug! couldn't determine board type\n"); 387 return -EINVAL; 388 break; 389 } 390 printk("comedi%d: ni_daq_700: %s, io 0x%lx", dev->minor, 391 thisboard->name, iobase); 392#ifdef incomplete 393 if (irq) { 394 printk(", irq %u", irq); 395 } 396#endif 397 398 printk("\n"); 399 400 if (iobase == 0) { 401 printk("io base address is zero!\n"); 402 return -EINVAL; 403 } 404 405 dev->iobase = iobase; 406 407#ifdef incomplete 408 /* grab our IRQ */ 409 dev->irq = irq; 410#endif 411 412 dev->board_name = thisboard->name; 413 414 if (alloc_subdevices(dev, 1) < 0) 415 return -ENOMEM; 416 417 /* DAQCard-700 dio */ 418 s = dev->subdevices + 0; 419 subdev_700_init(dev, s, NULL, dev->iobase); 420 421 return 0; 422}; 423 424static int dio700_detach(struct comedi_device *dev) 425{ 426 printk("comedi%d: ni_daq_700: cs-remove\n", dev->minor); 427 428 if (dev->subdevices) 429 subdev_700_cleanup(dev, dev->subdevices + 0); 430 431 if (thisboard->bustype != pcmcia_bustype && dev->iobase) 432 release_region(dev->iobase, DIO700_SIZE); 433 if (dev->irq) 434 free_irq(dev->irq, dev); 435 436 return 0; 437}; 438 439/* PCMCIA crap -- watch your words, please! */ 440 441static void dio700_config(struct pcmcia_device *link); 442static void dio700_release(struct pcmcia_device *link); 443static int dio700_cs_suspend(struct pcmcia_device *p_dev); 444static int dio700_cs_resume(struct pcmcia_device *p_dev); 445 446/* 447 The attach() and detach() entry points are used to create and destroy 448 "instances" of the driver, where each instance represents everything 449 needed to manage one actual PCMCIA card. 450*/ 451 452static int dio700_cs_attach(struct pcmcia_device *); 453static void dio700_cs_detach(struct pcmcia_device *); 454 455/* 456 You'll also need to prototype all the functions that will actually 457 be used to talk to your device. See 'memory_cs' for a good example 458 of a fully self-sufficient driver; the other drivers rely more or 459 less on other parts of the kernel. 460*/ 461 462/* 463 The dev_info variable is the "key" that is used to match up this 464 device driver with appropriate cards, through the card configuration 465 database. 466*/ 467 468static const dev_info_t dev_info = "ni_daq_700"; 469 470struct local_info_t { 471 struct pcmcia_device *link; 472 dev_node_t node; 473 int stop; 474 struct bus_operations *bus; 475}; 476 477/*====================================================================== 478 479 dio700_cs_attach() creates an "instance" of the driver, allocating 480 local data structures for one device. The device is registered 481 with Card Services. 482 483 The dev_link structure is initialized, but we don't actually 484 configure the card at this point -- we wait until we receive a 485 card insertion event. 486 487======================================================================*/ 488 489static int dio700_cs_attach(struct pcmcia_device *link) 490{ 491 struct local_info_t *local; 492 493 printk(KERN_INFO "ni_daq_700: cs-attach\n"); 494 495 dev_dbg(&link->dev, "dio700_cs_attach()\n"); 496 497 /* Allocate space for private device-specific data */ 498 local = kzalloc(sizeof(struct local_info_t), GFP_KERNEL); 499 if (!local) 500 return -ENOMEM; 501 local->link = link; 502 link->priv = local; 503 504 /* Interrupt setup */ 505 link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; 506 link->irq.IRQInfo1 = IRQ_LEVEL_ID; 507 link->irq.Handler = NULL; 508 509 /* 510 General socket configuration defaults can go here. In this 511 client, we assume very little, and rely on the CIS for almost 512 everything. In most clients, many details (i.e., number, sizes, 513 and attributes of IO windows) are fixed by the nature of the 514 device, and can be hard-wired here. 515 */ 516 link->conf.Attributes = 0; 517 link->conf.IntType = INT_MEMORY_AND_IO; 518 519 pcmcia_cur_dev = link; 520 521 dio700_config(link); 522 523 return 0; 524} /* dio700_cs_attach */ 525 526/*====================================================================== 527 528 This deletes a driver "instance". The device is de-registered 529 with Card Services. If it has been released, all local data 530 structures are freed. Otherwise, the structures will be freed 531 when the device is released. 532 533======================================================================*/ 534 535static void dio700_cs_detach(struct pcmcia_device *link) 536{ 537 538 printk(KERN_INFO "ni_daq_700: cs-detach!\n"); 539 540 dev_dbg(&link->dev, "dio700_cs_detach\n"); 541 542 if (link->dev_node) { 543 ((struct local_info_t *)link->priv)->stop = 1; 544 dio700_release(link); 545 } 546 547 /* This points to the parent struct local_info_t struct */ 548 if (link->priv) 549 kfree(link->priv); 550 551} /* dio700_cs_detach */ 552 553/*====================================================================== 554 555 dio700_config() is scheduled to run after a CARD_INSERTION event 556 is received, to configure the PCMCIA socket, and to make the 557 device available to the system. 558 559======================================================================*/ 560 561static int dio700_pcmcia_config_loop(struct pcmcia_device *p_dev, 562 cistpl_cftable_entry_t *cfg, 563 cistpl_cftable_entry_t *dflt, 564 unsigned int vcc, 565 void *priv_data) 566{ 567 win_req_t *req = priv_data; 568 memreq_t map; 569 570 if (cfg->index == 0) 571 return -ENODEV; 572 573 /* Does this card need audio output? */ 574 if (cfg->flags & CISTPL_CFTABLE_AUDIO) { 575 p_dev->conf.Attributes |= CONF_ENABLE_SPKR; 576 p_dev->conf.Status = CCSR_AUDIO_ENA; 577 } 578 579 /* Do we need to allocate an interrupt? */ 580 if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) 581 p_dev->conf.Attributes |= CONF_ENABLE_IRQ; 582 583 /* IO window settings */ 584 p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; 585 if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) { 586 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io; 587 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; 588 if (!(io->flags & CISTPL_IO_8BIT)) 589 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_16; 590 if (!(io->flags & CISTPL_IO_16BIT)) 591 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; 592 p_dev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK; 593 p_dev->io.BasePort1 = io->win[0].base; 594 p_dev->io.NumPorts1 = io->win[0].len; 595 if (io->nwin > 1) { 596 p_dev->io.Attributes2 = p_dev->io.Attributes1; 597 p_dev->io.BasePort2 = io->win[1].base; 598 p_dev->io.NumPorts2 = io->win[1].len; 599 } 600 /* This reserves IO space but doesn't actually enable it */ 601 if (pcmcia_request_io(p_dev, &p_dev->io) != 0) 602 return -ENODEV; 603 } 604 605 if ((cfg->mem.nwin > 0) || (dflt->mem.nwin > 0)) { 606 cistpl_mem_t *mem = 607 (cfg->mem.nwin) ? &cfg->mem : &dflt->mem; 608 req->Attributes = WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_CM; 609 req->Attributes |= WIN_ENABLE; 610 req->Base = mem->win[0].host_addr; 611 req->Size = mem->win[0].len; 612 if (req->Size < 0x1000) 613 req->Size = 0x1000; 614 req->AccessSpeed = 0; 615 if (pcmcia_request_window(&p_dev, req, &p_dev->win)) 616 return -ENODEV; 617 map.Page = 0; 618 map.CardOffset = mem->win[0].card_addr; 619 if (pcmcia_map_mem_page(p_dev, p_dev->win, &map)) 620 return -ENODEV; 621 } 622 /* If we got this far, we're cool! */ 623 return 0; 624} 625 626static void dio700_config(struct pcmcia_device *link) 627{ 628 struct local_info_t *dev = link->priv; 629 win_req_t req; 630 int ret; 631 632 printk(KERN_INFO "ni_daq_700: cs-config\n"); 633 634 dev_dbg(&link->dev, "dio700_config\n"); 635 636 ret = pcmcia_loop_config(link, dio700_pcmcia_config_loop, &req); 637 if (ret) { 638 dev_warn(&link->dev, "no configuration found\n"); 639 goto failed; 640 } 641 642 /* 643 Allocate an interrupt line. Note that this does not assign a 644 handler to the interrupt, unless the 'Handler' member of the 645 irq structure is initialized. 646 */ 647 if (link->conf.Attributes & CONF_ENABLE_IRQ) { 648 ret = pcmcia_request_irq(link, &link->irq); 649 if (ret) 650 goto failed; 651 } 652 653 /* 654 This actually configures the PCMCIA socket -- setting up 655 the I/O windows and the interrupt mapping, and putting the 656 card and host interface into "Memory and IO" mode. 657 */ 658 ret = pcmcia_request_configuration(link, &link->conf); 659 if (ret != 0) 660 goto failed; 661 662 /* 663 At this point, the dev_node_t structure(s) need to be 664 initialized and arranged in a linked list at link->dev. 665 */ 666 sprintf(dev->node.dev_name, "ni_daq_700"); 667 dev->node.major = dev->node.minor = 0; 668 link->dev_node = &dev->node; 669 670 /* Finally, report what we've done */ 671 printk(KERN_INFO "%s: index 0x%02x", 672 dev->node.dev_name, link->conf.ConfigIndex); 673 if (link->conf.Attributes & CONF_ENABLE_IRQ) 674 printk(", irq %d", link->irq.AssignedIRQ); 675 if (link->io.NumPorts1) 676 printk(", io 0x%04x-0x%04x", link->io.BasePort1, 677 link->io.BasePort1 + link->io.NumPorts1 - 1); 678 if (link->io.NumPorts2) 679 printk(" & 0x%04x-0x%04x", link->io.BasePort2, 680 link->io.BasePort2 + link->io.NumPorts2 - 1); 681 if (link->win) 682 printk(", mem 0x%06lx-0x%06lx", req.Base, 683 req.Base + req.Size - 1); 684 printk("\n"); 685 686 return; 687 688failed: 689 printk(KERN_INFO "ni_daq_700 cs failed"); 690 dio700_release(link); 691 692} /* dio700_config */ 693 694static void dio700_release(struct pcmcia_device *link) 695{ 696 dev_dbg(&link->dev, "dio700_release\n"); 697 698 pcmcia_disable_device(link); 699} /* dio700_release */ 700 701/*====================================================================== 702 703 The card status event handler. Mostly, this schedules other 704 stuff to run after an event is received. 705 706 When a CARD_REMOVAL event is received, we immediately set a 707 private flag to block future accesses to this device. All the 708 functions that actually access the device should check this flag 709 to make sure the card is still present. 710 711======================================================================*/ 712 713static int dio700_cs_suspend(struct pcmcia_device *link) 714{ 715 struct local_info_t *local = link->priv; 716 717 /* Mark the device as stopped, to block IO until later */ 718 local->stop = 1; 719 return 0; 720} /* dio700_cs_suspend */ 721 722static int dio700_cs_resume(struct pcmcia_device *link) 723{ 724 struct local_info_t *local = link->priv; 725 726 local->stop = 0; 727 return 0; 728} /* dio700_cs_resume */ 729 730/*====================================================================*/ 731 732static struct pcmcia_device_id dio700_cs_ids[] = { 733 /* N.B. These IDs should match those in dio700_boards */ 734 PCMCIA_DEVICE_MANF_CARD(0x010b, 0x4743), /* daqcard-700 */ 735 PCMCIA_DEVICE_NULL 736}; 737 738MODULE_LICENSE("GPL"); 739MODULE_DEVICE_TABLE(pcmcia, dio700_cs_ids); 740 741struct pcmcia_driver dio700_cs_driver = { 742 .probe = dio700_cs_attach, 743 .remove = dio700_cs_detach, 744 .suspend = dio700_cs_suspend, 745 .resume = dio700_cs_resume, 746 .id_table = dio700_cs_ids, 747 .owner = THIS_MODULE, 748 .drv = { 749 .name = dev_info, 750 }, 751}; 752 753static int __init init_dio700_cs(void) 754{ 755 pcmcia_register_driver(&dio700_cs_driver); 756 return 0; 757} 758 759static void __exit exit_dio700_cs(void) 760{ 761 pr_debug("ni_daq_700: unloading\n"); 762 pcmcia_unregister_driver(&dio700_cs_driver); 763} 764 765int __init init_module(void) 766{ 767 int ret; 768 769 ret = init_dio700_cs(); 770 if (ret < 0) 771 return ret; 772 773 return comedi_driver_register(&driver_dio700); 774} 775 776void __exit cleanup_module(void) 777{ 778 exit_dio700_cs(); 779 comedi_driver_unregister(&driver_dio700); 780} 781