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124b13b2 FMH |
1 | /* |
2 | comedi/drivers/ni_labpc_cs.c | |
3 | Driver for National Instruments daqcard-1200 boards | |
4 | Copyright (C) 2001, 2002, 2003 Frank Mori Hess <fmhess@users.sourceforge.net> | |
5 | ||
6 | PCMCIA crap is adapted from dummy_cs.c 1.31 2001/08/24 12:13:13 | |
7 | from the pcmcia package. | |
8 | The initial developer of the pcmcia dummy_cs.c code is David A. Hinds | |
9 | <dahinds@users.sourceforge.net>. Portions created by David A. Hinds | |
10 | are Copyright (C) 1999 David A. Hinds. | |
11 | ||
12 | This program is free software; you can redistribute it and/or modify | |
13 | it under the terms of the GNU General Public License as published by | |
14 | the Free Software Foundation; either version 2 of the License, or | |
15 | (at your option) any later version. | |
16 | ||
17 | This program is distributed in the hope that it will be useful, | |
18 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | GNU General Public License for more details. | |
21 | ||
22 | You should have received a copy of the GNU General Public License | |
23 | along with this program; if not, write to the Free Software | |
24 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
25 | ||
26 | ************************************************************************ | |
27 | */ | |
28 | /* | |
29 | Driver: ni_labpc_cs | |
30 | Description: National Instruments Lab-PC (& compatibles) | |
31 | Author: Frank Mori Hess <fmhess@users.sourceforge.net> | |
32 | Devices: [National Instruments] DAQCard-1200 (daqcard-1200) | |
33 | Status: works | |
34 | ||
35 | Thanks go to Fredrik Lingvall for much testing and perseverance in | |
36 | helping to debug daqcard-1200 support. | |
37 | ||
38 | The 1200 series boards have onboard calibration dacs for correcting | |
39 | analog input/output offsets and gains. The proper settings for these | |
40 | caldacs are stored on the board's eeprom. To read the caldac values | |
41 | from the eeprom and store them into a file that can be then be used by | |
42 | comedilib, use the comedi_calibrate program. | |
43 | ||
44 | Configuration options: | |
45 | none | |
46 | ||
47 | The daqcard-1200 has quirky chanlist requirements | |
48 | when scanning multiple channels. Multiple channel scan | |
49 | sequence must start at highest channel, then decrement down to | |
50 | channel 0. Chanlists consisting of all one channel | |
51 | are also legal, and allow you to pace conversions in bursts. | |
52 | ||
53 | */ | |
54 | ||
55 | /* | |
56 | ||
57 | NI manuals: | |
58 | 340988a (daqcard-1200) | |
59 | ||
60 | */ | |
61 | ||
62 | #undef LABPC_DEBUG | |
63 | //#define LABPC_DEBUG // enable debugging messages | |
64 | ||
65 | #include "../comedidev.h" | |
66 | ||
67 | #include <linux/delay.h> | |
124b13b2 FMH |
68 | |
69 | #include "8253.h" | |
70 | #include "8255.h" | |
71 | #include "comedi_fc.h" | |
72 | #include "ni_labpc.h" | |
73 | ||
74 | #include <pcmcia/cs_types.h> | |
75 | #include <pcmcia/cs.h> | |
76 | #include <pcmcia/cistpl.h> | |
77 | #include <pcmcia/cisreg.h> | |
78 | #include <pcmcia/ds.h> | |
79 | ||
80 | static struct pcmcia_device *pcmcia_cur_dev = NULL; | |
81 | ||
71b5f4f1 | 82 | static int labpc_attach(struct comedi_device * dev, comedi_devconfig * it); |
124b13b2 FMH |
83 | |
84 | static const labpc_board labpc_cs_boards[] = { | |
85 | { | |
86 | name: "daqcard-1200", | |
87 | device_id:0x103, // 0x10b is manufacturer id, 0x103 is device id | |
88 | ai_speed:10000, | |
89 | bustype: pcmcia_bustype, | |
90 | register_layout:labpc_1200_layout, | |
91 | has_ao: 1, | |
92 | ai_range_table:&range_labpc_1200_ai, | |
93 | ai_range_code:labpc_1200_ai_gain_bits, | |
94 | ai_range_is_unipolar:labpc_1200_is_unipolar, | |
95 | ai_scan_up:0, | |
96 | memory_mapped_io:0, | |
97 | }, | |
98 | /* duplicate entry, to support using alternate name */ | |
99 | { | |
100 | name: "ni_labpc_cs", | |
101 | device_id:0x103, | |
102 | ai_speed:10000, | |
103 | bustype: pcmcia_bustype, | |
104 | register_layout:labpc_1200_layout, | |
105 | has_ao: 1, | |
106 | ai_range_table:&range_labpc_1200_ai, | |
107 | ai_range_code:labpc_1200_ai_gain_bits, | |
108 | ai_range_is_unipolar:labpc_1200_is_unipolar, | |
109 | ai_scan_up:0, | |
110 | memory_mapped_io:0, | |
111 | }, | |
112 | }; | |
113 | ||
114 | /* | |
115 | * Useful for shorthand access to the particular board structure | |
116 | */ | |
117 | #define thisboard ((const labpc_board *)dev->board_ptr) | |
118 | ||
119 | static comedi_driver driver_labpc_cs = { | |
120 | .driver_name = "ni_labpc_cs", | |
121 | .module = THIS_MODULE, | |
122 | .attach = &labpc_attach, | |
123 | .detach = &labpc_common_detach, | |
124 | .num_names = sizeof(labpc_cs_boards) / sizeof(labpc_board), | |
125 | .board_name = &labpc_cs_boards[0].name, | |
126 | .offset = sizeof(labpc_board), | |
127 | }; | |
128 | ||
71b5f4f1 | 129 | static int labpc_attach(struct comedi_device * dev, comedi_devconfig * it) |
124b13b2 FMH |
130 | { |
131 | unsigned long iobase = 0; | |
132 | unsigned int irq = 0; | |
133 | struct pcmcia_device *link; | |
134 | ||
135 | /* allocate and initialize dev->private */ | |
136 | if (alloc_private(dev, sizeof(labpc_private)) < 0) | |
137 | return -ENOMEM; | |
138 | ||
139 | // get base address, irq etc. based on bustype | |
140 | switch (thisboard->bustype) { | |
141 | case pcmcia_bustype: | |
142 | link = pcmcia_cur_dev; /* XXX hack */ | |
143 | if (!link) | |
144 | return -EIO; | |
145 | iobase = link->io.BasePort1; | |
146 | irq = link->irq.AssignedIRQ; | |
147 | break; | |
148 | default: | |
149 | printk("bug! couldn't determine board type\n"); | |
150 | return -EINVAL; | |
151 | break; | |
152 | } | |
153 | return labpc_common_attach(dev, iobase, irq, 0); | |
154 | } | |
155 | ||
156 | /* | |
157 | All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If | |
158 | you do not define PCMCIA_DEBUG at all, all the debug code will be | |
159 | left out. If you compile with PCMCIA_DEBUG=0, the debug code will | |
160 | be present but disabled -- but it can then be enabled for specific | |
161 | modules at load time with a 'pc_debug=#' option to insmod. | |
162 | */ | |
163 | #ifdef PCMCIA_DEBUG | |
164 | static int pc_debug = PCMCIA_DEBUG; | |
165 | module_param(pc_debug, int, 0644); | |
166 | #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args) | |
167 | static const char *version = | |
168 | "ni_labpc.c, based on dummy_cs.c 1.31 2001/08/24 12:13:13"; | |
169 | #else | |
170 | #define DEBUG(n, args...) | |
171 | #endif | |
172 | ||
173 | /*====================================================================*/ | |
174 | ||
175 | /* | |
176 | The event() function is this driver's Card Services event handler. | |
177 | It will be called by Card Services when an appropriate card status | |
178 | event is received. The config() and release() entry points are | |
179 | used to configure or release a socket, in response to card | |
180 | insertion and ejection events. They are invoked from the dummy | |
181 | event handler. | |
182 | ||
183 | Kernel version 2.6.16 upwards uses suspend() and resume() functions | |
184 | instead of an event() function. | |
185 | */ | |
186 | ||
187 | static void labpc_config(struct pcmcia_device *link); | |
188 | static void labpc_release(struct pcmcia_device *link); | |
189 | static int labpc_cs_suspend(struct pcmcia_device *p_dev); | |
190 | static int labpc_cs_resume(struct pcmcia_device *p_dev); | |
191 | ||
192 | /* | |
193 | The attach() and detach() entry points are used to create and destroy | |
194 | "instances" of the driver, where each instance represents everything | |
195 | needed to manage one actual PCMCIA card. | |
196 | */ | |
197 | ||
198 | static int labpc_cs_attach(struct pcmcia_device *); | |
199 | static void labpc_cs_detach(struct pcmcia_device *); | |
200 | ||
201 | /* | |
202 | You'll also need to prototype all the functions that will actually | |
203 | be used to talk to your device. See 'memory_cs' for a good example | |
204 | of a fully self-sufficient driver; the other drivers rely more or | |
205 | less on other parts of the kernel. | |
206 | */ | |
207 | ||
208 | /* | |
209 | The dev_info variable is the "key" that is used to match up this | |
210 | device driver with appropriate cards, through the card configuration | |
211 | database. | |
212 | */ | |
213 | ||
214 | static const dev_info_t dev_info = "daqcard-1200"; | |
215 | ||
216 | typedef struct local_info_t { | |
217 | struct pcmcia_device *link; | |
218 | dev_node_t node; | |
219 | int stop; | |
220 | struct bus_operations *bus; | |
221 | } local_info_t; | |
222 | ||
223 | /*====================================================================== | |
224 | ||
225 | labpc_cs_attach() creates an "instance" of the driver, allocating | |
226 | local data structures for one device. The device is registered | |
227 | with Card Services. | |
228 | ||
229 | The dev_link structure is initialized, but we don't actually | |
230 | configure the card at this point -- we wait until we receive a | |
231 | card insertion event. | |
232 | ||
233 | ======================================================================*/ | |
234 | ||
235 | static int labpc_cs_attach(struct pcmcia_device *link) | |
236 | { | |
237 | local_info_t *local; | |
238 | ||
239 | DEBUG(0, "labpc_cs_attach()\n"); | |
240 | ||
241 | /* Allocate space for private device-specific data */ | |
242 | local = kzalloc(sizeof(local_info_t), GFP_KERNEL); | |
243 | if (!local) | |
244 | return -ENOMEM; | |
245 | local->link = link; | |
246 | link->priv = local; | |
247 | ||
248 | /* Interrupt setup */ | |
249 | link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_FORCED_PULSE; | |
250 | link->irq.IRQInfo1 = IRQ_INFO2_VALID | IRQ_PULSE_ID; | |
251 | link->irq.Handler = NULL; | |
252 | ||
253 | /* | |
254 | General socket configuration defaults can go here. In this | |
255 | client, we assume very little, and rely on the CIS for almost | |
256 | everything. In most clients, many details (i.e., number, sizes, | |
257 | and attributes of IO windows) are fixed by the nature of the | |
258 | device, and can be hard-wired here. | |
259 | */ | |
260 | link->conf.Attributes = 0; | |
261 | link->conf.IntType = INT_MEMORY_AND_IO; | |
262 | ||
263 | pcmcia_cur_dev = link; | |
264 | ||
265 | labpc_config(link); | |
266 | ||
267 | return 0; | |
268 | } /* labpc_cs_attach */ | |
269 | ||
270 | /*====================================================================== | |
271 | ||
272 | This deletes a driver "instance". The device is de-registered | |
273 | with Card Services. If it has been released, all local data | |
274 | structures are freed. Otherwise, the structures will be freed | |
275 | when the device is released. | |
276 | ||
277 | ======================================================================*/ | |
278 | ||
279 | static void labpc_cs_detach(struct pcmcia_device *link) | |
280 | { | |
281 | DEBUG(0, "labpc_cs_detach(0x%p)\n", link); | |
282 | ||
283 | /* | |
284 | If the device is currently configured and active, we won't | |
285 | actually delete it yet. Instead, it is marked so that when | |
286 | the release() function is called, that will trigger a proper | |
287 | detach(). | |
288 | */ | |
289 | if (link->dev_node) { | |
290 | ((local_info_t *) link->priv)->stop = 1; | |
291 | labpc_release(link); | |
292 | } | |
293 | ||
294 | /* This points to the parent local_info_t struct */ | |
295 | if (link->priv) | |
296 | kfree(link->priv); | |
297 | ||
298 | } /* labpc_cs_detach */ | |
299 | ||
300 | /*====================================================================== | |
301 | ||
302 | labpc_config() is scheduled to run after a CARD_INSERTION event | |
303 | is received, to configure the PCMCIA socket, and to make the | |
304 | device available to the system. | |
305 | ||
306 | ======================================================================*/ | |
307 | ||
308 | static void labpc_config(struct pcmcia_device *link) | |
309 | { | |
310 | local_info_t *dev = link->priv; | |
311 | tuple_t tuple; | |
312 | cisparse_t parse; | |
313 | int last_ret; | |
314 | u_char buf[64]; | |
315 | win_req_t req; | |
316 | memreq_t map; | |
317 | cistpl_cftable_entry_t dflt = { 0 }; | |
318 | ||
319 | DEBUG(0, "labpc_config(0x%p)\n", link); | |
320 | ||
321 | /* | |
322 | This reads the card's CONFIG tuple to find its configuration | |
323 | registers. | |
324 | */ | |
325 | tuple.DesiredTuple = CISTPL_CONFIG; | |
326 | tuple.Attributes = 0; | |
327 | tuple.TupleData = buf; | |
328 | tuple.TupleDataMax = sizeof(buf); | |
329 | tuple.TupleOffset = 0; | |
330 | if ((last_ret = pcmcia_get_first_tuple(link, &tuple))) { | |
331 | cs_error(link, GetFirstTuple, last_ret); | |
332 | goto cs_failed; | |
333 | } | |
334 | if ((last_ret = pcmcia_get_tuple_data(link, &tuple))) { | |
335 | cs_error(link, GetTupleData, last_ret); | |
336 | goto cs_failed; | |
337 | } | |
338 | if ((last_ret = pcmcia_parse_tuple(&tuple, &parse))) { | |
339 | cs_error(link, ParseTuple, last_ret); | |
340 | goto cs_failed; | |
341 | } | |
342 | link->conf.ConfigBase = parse.config.base; | |
343 | link->conf.Present = parse.config.rmask[0]; | |
344 | ||
345 | /* | |
346 | In this loop, we scan the CIS for configuration table entries, | |
347 | each of which describes a valid card configuration, including | |
348 | voltage, IO window, memory window, and interrupt settings. | |
349 | ||
350 | We make no assumptions about the card to be configured: we use | |
351 | just the information available in the CIS. In an ideal world, | |
352 | this would work for any PCMCIA card, but it requires a complete | |
353 | and accurate CIS. In practice, a driver usually "knows" most of | |
354 | these things without consulting the CIS, and most client drivers | |
355 | will only use the CIS to fill in implementation-defined details. | |
356 | */ | |
357 | tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; | |
358 | if ((last_ret = pcmcia_get_first_tuple(link, &tuple))) { | |
359 | cs_error(link, GetFirstTuple, last_ret); | |
360 | goto cs_failed; | |
361 | } | |
362 | while (1) { | |
363 | cistpl_cftable_entry_t *cfg = &(parse.cftable_entry); | |
364 | if (pcmcia_get_tuple_data(link, &tuple)) | |
365 | goto next_entry; | |
366 | if (pcmcia_parse_tuple(&tuple, &parse)) | |
367 | goto next_entry; | |
368 | ||
369 | if (cfg->flags & CISTPL_CFTABLE_DEFAULT) | |
370 | dflt = *cfg; | |
371 | if (cfg->index == 0) | |
372 | goto next_entry; | |
373 | link->conf.ConfigIndex = cfg->index; | |
374 | ||
375 | /* Does this card need audio output? */ | |
376 | if (cfg->flags & CISTPL_CFTABLE_AUDIO) { | |
377 | link->conf.Attributes |= CONF_ENABLE_SPKR; | |
378 | link->conf.Status = CCSR_AUDIO_ENA; | |
379 | } | |
380 | ||
381 | /* Do we need to allocate an interrupt? */ | |
382 | if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1) | |
383 | link->conf.Attributes |= CONF_ENABLE_IRQ; | |
384 | ||
385 | /* IO window settings */ | |
386 | link->io.NumPorts1 = link->io.NumPorts2 = 0; | |
387 | if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) { | |
388 | cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io; | |
389 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; | |
390 | link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK; | |
391 | link->io.BasePort1 = io->win[0].base; | |
392 | link->io.NumPorts1 = io->win[0].len; | |
393 | if (io->nwin > 1) { | |
394 | link->io.Attributes2 = link->io.Attributes1; | |
395 | link->io.BasePort2 = io->win[1].base; | |
396 | link->io.NumPorts2 = io->win[1].len; | |
397 | } | |
398 | /* This reserves IO space but doesn't actually enable it */ | |
399 | if (pcmcia_request_io(link, &link->io)) | |
400 | goto next_entry; | |
401 | } | |
402 | ||
403 | if ((cfg->mem.nwin > 0) || (dflt.mem.nwin > 0)) { | |
404 | cistpl_mem_t *mem = | |
405 | (cfg->mem.nwin) ? &cfg->mem : &dflt.mem; | |
406 | req.Attributes = WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_CM; | |
407 | req.Attributes |= WIN_ENABLE; | |
408 | req.Base = mem->win[0].host_addr; | |
409 | req.Size = mem->win[0].len; | |
410 | if (req.Size < 0x1000) | |
411 | req.Size = 0x1000; | |
412 | req.AccessSpeed = 0; | |
413 | link->win = (window_handle_t) link; | |
414 | if (pcmcia_request_window(&link, &req, &link->win)) | |
415 | goto next_entry; | |
416 | map.Page = 0; | |
417 | map.CardOffset = mem->win[0].card_addr; | |
418 | if (pcmcia_map_mem_page(link->win, &map)) | |
419 | goto next_entry; | |
420 | } | |
421 | /* If we got this far, we're cool! */ | |
422 | break; | |
423 | ||
424 | next_entry: | |
425 | if ((last_ret = pcmcia_get_next_tuple(link, &tuple))) { | |
426 | cs_error(link, GetNextTuple, last_ret); | |
427 | goto cs_failed; | |
428 | } | |
429 | } | |
430 | ||
431 | /* | |
432 | Allocate an interrupt line. Note that this does not assign a | |
433 | handler to the interrupt, unless the 'Handler' member of the | |
434 | irq structure is initialized. | |
435 | */ | |
436 | if (link->conf.Attributes & CONF_ENABLE_IRQ) | |
437 | if ((last_ret = pcmcia_request_irq(link, &link->irq))) { | |
438 | cs_error(link, RequestIRQ, last_ret); | |
439 | goto cs_failed; | |
440 | } | |
441 | ||
442 | /* | |
443 | This actually configures the PCMCIA socket -- setting up | |
444 | the I/O windows and the interrupt mapping, and putting the | |
445 | card and host interface into "Memory and IO" mode. | |
446 | */ | |
447 | if ((last_ret = pcmcia_request_configuration(link, &link->conf))) { | |
448 | cs_error(link, RequestConfiguration, last_ret); | |
449 | goto cs_failed; | |
450 | } | |
451 | ||
452 | /* | |
453 | At this point, the dev_node_t structure(s) need to be | |
454 | initialized and arranged in a linked list at link->dev. | |
455 | */ | |
456 | sprintf(dev->node.dev_name, "daqcard-1200"); | |
457 | dev->node.major = dev->node.minor = 0; | |
458 | link->dev_node = &dev->node; | |
459 | ||
460 | /* Finally, report what we've done */ | |
461 | printk(KERN_INFO "%s: index 0x%02x", | |
462 | dev->node.dev_name, link->conf.ConfigIndex); | |
463 | if (link->conf.Attributes & CONF_ENABLE_IRQ) | |
464 | printk(", irq %d", link->irq.AssignedIRQ); | |
465 | if (link->io.NumPorts1) | |
466 | printk(", io 0x%04x-0x%04x", link->io.BasePort1, | |
467 | link->io.BasePort1 + link->io.NumPorts1 - 1); | |
468 | if (link->io.NumPorts2) | |
469 | printk(" & 0x%04x-0x%04x", link->io.BasePort2, | |
470 | link->io.BasePort2 + link->io.NumPorts2 - 1); | |
471 | if (link->win) | |
472 | printk(", mem 0x%06lx-0x%06lx", req.Base, | |
473 | req.Base + req.Size - 1); | |
474 | printk("\n"); | |
475 | ||
476 | return; | |
477 | ||
478 | cs_failed: | |
479 | labpc_release(link); | |
480 | ||
481 | } /* labpc_config */ | |
482 | ||
483 | static void labpc_release(struct pcmcia_device *link) | |
484 | { | |
485 | DEBUG(0, "labpc_release(0x%p)\n", link); | |
486 | ||
487 | pcmcia_disable_device(link); | |
488 | } /* labpc_release */ | |
489 | ||
490 | /*====================================================================== | |
491 | ||
492 | The card status event handler. Mostly, this schedules other | |
493 | stuff to run after an event is received. | |
494 | ||
495 | When a CARD_REMOVAL event is received, we immediately set a | |
496 | private flag to block future accesses to this device. All the | |
497 | functions that actually access the device should check this flag | |
498 | to make sure the card is still present. | |
499 | ||
500 | ======================================================================*/ | |
501 | ||
502 | static int labpc_cs_suspend(struct pcmcia_device *link) | |
503 | { | |
504 | local_info_t *local = link->priv; | |
505 | ||
506 | /* Mark the device as stopped, to block IO until later */ | |
507 | local->stop = 1; | |
508 | return 0; | |
509 | } /* labpc_cs_suspend */ | |
510 | ||
511 | static int labpc_cs_resume(struct pcmcia_device *link) | |
512 | { | |
513 | local_info_t *local = link->priv; | |
514 | ||
515 | local->stop = 0; | |
516 | return 0; | |
517 | } /* labpc_cs_resume */ | |
518 | ||
519 | /*====================================================================*/ | |
520 | ||
521 | static struct pcmcia_device_id labpc_cs_ids[] = { | |
522 | /* N.B. These IDs should match those in labpc_cs_boards (ni_labpc.c) */ | |
523 | PCMCIA_DEVICE_MANF_CARD(0x010b, 0x0103), /* daqcard-1200 */ | |
524 | PCMCIA_DEVICE_NULL | |
525 | }; | |
526 | ||
527 | MODULE_DEVICE_TABLE(pcmcia, labpc_cs_ids); | |
528 | ||
529 | struct pcmcia_driver labpc_cs_driver = { | |
530 | .probe = labpc_cs_attach, | |
531 | .remove = labpc_cs_detach, | |
532 | .suspend = labpc_cs_suspend, | |
533 | .resume = labpc_cs_resume, | |
534 | .id_table = labpc_cs_ids, | |
535 | .owner = THIS_MODULE, | |
536 | .drv = { | |
537 | .name = dev_info, | |
538 | }, | |
539 | }; | |
540 | ||
541 | static int __init init_labpc_cs(void) | |
542 | { | |
543 | DEBUG(0, "%s\n", version); | |
544 | pcmcia_register_driver(&labpc_cs_driver); | |
545 | return 0; | |
546 | } | |
547 | ||
548 | static void __exit exit_labpc_cs(void) | |
549 | { | |
550 | DEBUG(0, "ni_labpc: unloading\n"); | |
551 | pcmcia_unregister_driver(&labpc_cs_driver); | |
552 | } | |
553 | ||
554 | int __init labpc_init_module(void) | |
555 | { | |
556 | int ret; | |
557 | ||
558 | ret = init_labpc_cs(); | |
559 | if (ret < 0) | |
560 | return ret; | |
561 | ||
562 | return comedi_driver_register(&driver_labpc_cs); | |
563 | } | |
564 | ||
565 | void __exit labpc_exit_module(void) | |
566 | { | |
567 | exit_labpc_cs(); | |
568 | comedi_driver_unregister(&driver_labpc_cs); | |
569 | } | |
570 | ||
571 | MODULE_LICENSE("GPL"); | |
572 | module_init(labpc_init_module); | |
573 | module_exit(labpc_exit_module); |