Commit | Line | Data |
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2c89e159 GKH |
1 | /* |
2 | comedi/drivers/c6xdigio.c | |
3 | ||
4 | Hardware driver for Mechatronic Systems Inc. C6x_DIGIO DSP daughter card. | |
5 | (http://robot0.ge.uiuc.edu/~spong/mecha/) | |
6 | ||
7 | COMEDI - Linux Control and Measurement Device Interface | |
8 | Copyright (C) 1999 Dan Block | |
9 | ||
10 | This program is free software; you can redistribute it and/or modify | |
11 | it under the terms of the GNU General Public License as published by | |
12 | the Free Software Foundation; either version 2 of the License, or | |
13 | (at your option) any later version. | |
14 | ||
15 | This program is distributed in the hope that it will be useful, | |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
21 | along with this program; if not, write to the Free Software | |
22 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
23 | ||
24 | */ | |
25 | /* | |
26 | Driver: c6xdigio | |
27 | Description: Mechatronic Systems Inc. C6x_DIGIO DSP daughter card | |
28 | Author: Dan Block | |
29 | Status: unknown | |
30 | Devices: [Mechatronic Systems Inc.] C6x_DIGIO DSP daughter card (c6xdigio) | |
31 | Updated: Sun Nov 20 20:18:34 EST 2005 | |
32 | ||
33 | This driver will not work with a 2.4 kernel. | |
34 | http://robot0.ge.uiuc.edu/~spong/mecha/ | |
35 | ||
36 | */ | |
37 | ||
38 | #include <linux/kernel.h> | |
39 | #include <linux/module.h> | |
40 | #include <linux/sched.h> | |
41 | #include <linux/mm.h> | |
42 | #include <linux/errno.h> | |
43 | #include <linux/ioport.h> | |
44 | #include <linux/delay.h> | |
45 | #include <linux/interrupt.h> | |
46 | #include <linux/timex.h> | |
47 | #include <linux/timer.h> | |
48 | #include <asm/io.h> | |
49 | #include <linux/pnp.h> | |
50 | ||
51 | #include "../comedidev.h" | |
52 | ||
53 | static u8 ReadByteFromHwPort(unsigned long addr) | |
54 | { | |
55 | u8 result = inb(addr); | |
56 | return result; | |
57 | } | |
58 | ||
59 | static void WriteByteToHwPort(unsigned long addr, u8 val) | |
60 | { | |
61 | outb_p(val, addr); | |
62 | } | |
63 | ||
64 | #define C6XDIGIO_SIZE 3 | |
65 | ||
66 | /* | |
67 | * port offsets | |
68 | */ | |
69 | #define C6XDIGIO_PARALLEL_DATA 0 | |
70 | #define C6XDIGIO_PARALLEL_STATUS 1 | |
71 | #define C6XDIGIO_PARALLEL_CONTROL 2 | |
72 | struct pwmbitstype { | |
73 | unsigned sb0:2; | |
74 | unsigned sb1:2; | |
75 | unsigned sb2:2; | |
76 | unsigned sb3:2; | |
77 | unsigned sb4:2; | |
78 | }; | |
79 | union pwmcmdtype { | |
80 | unsigned cmd; // assuming here that int is 32bit | |
81 | struct pwmbitstype bits; | |
82 | }; | |
83 | struct encbitstype { | |
84 | unsigned sb0:3; | |
85 | unsigned sb1:3; | |
86 | unsigned sb2:3; | |
87 | unsigned sb3:3; | |
88 | unsigned sb4:3; | |
89 | unsigned sb5:3; | |
90 | unsigned sb6:3; | |
91 | unsigned sb7:3; | |
92 | }; | |
93 | union encvaluetype { | |
94 | unsigned value; | |
95 | struct encbitstype bits; | |
96 | }; | |
97 | ||
98 | #define C6XDIGIO_TIME_OUT 20 | |
99 | ||
71b5f4f1 BP |
100 | static int c6xdigio_attach(struct comedi_device * dev, comedi_devconfig * it); |
101 | static int c6xdigio_detach(struct comedi_device * dev); | |
139dfbdf | 102 | struct comedi_driver driver_c6xdigio = { |
2c89e159 GKH |
103 | driver_name:"c6xdigio", |
104 | module:THIS_MODULE, | |
105 | attach:c6xdigio_attach, | |
106 | detach:c6xdigio_detach, | |
107 | }; | |
108 | ||
109 | static void C6X_pwmInit(unsigned long baseAddr) | |
110 | { | |
111 | int timeout = 0; | |
112 | ||
113 | //printk("Inside C6X_pwmInit\n"); | |
114 | ||
115 | WriteByteToHwPort(baseAddr, 0x70); | |
116 | while (((ReadByteFromHwPort(baseAddr + 1) & 0x80) == 0) | |
117 | && (timeout < C6XDIGIO_TIME_OUT)) { | |
118 | timeout++; | |
119 | } | |
120 | ||
121 | WriteByteToHwPort(baseAddr, 0x74); | |
122 | timeout = 0; | |
123 | while (((ReadByteFromHwPort(baseAddr + 1) & 0x80) == 0x80) | |
124 | && (timeout < C6XDIGIO_TIME_OUT)) { | |
125 | timeout++; | |
126 | } | |
127 | ||
128 | WriteByteToHwPort(baseAddr, 0x70); | |
129 | timeout = 0; | |
130 | while (((ReadByteFromHwPort(baseAddr + 1) & 0x80) == 0x0) | |
131 | && (timeout < C6XDIGIO_TIME_OUT)) { | |
132 | timeout++; | |
133 | } | |
134 | ||
135 | WriteByteToHwPort(baseAddr, 0x0); | |
136 | timeout = 0; | |
137 | while (((ReadByteFromHwPort(baseAddr + 1) & 0x80) == 0x80) | |
138 | && (timeout < C6XDIGIO_TIME_OUT)) { | |
139 | timeout++; | |
140 | } | |
141 | ||
142 | } | |
143 | ||
144 | static void C6X_pwmOutput(unsigned long baseAddr, unsigned channel, int value) | |
145 | { | |
146 | unsigned ppcmd; | |
147 | union pwmcmdtype pwm; | |
148 | int timeout = 0; | |
149 | unsigned tmp; | |
150 | ||
151 | //printk("Inside C6X_pwmOutput\n"); | |
152 | ||
153 | pwm.cmd = value; | |
154 | if (pwm.cmd > 498) | |
155 | pwm.cmd = 498; | |
156 | if (pwm.cmd < 2) | |
157 | pwm.cmd = 2; | |
158 | ||
159 | if (channel == 0) { | |
160 | ppcmd = 0x28; | |
161 | } else { // if channel == 1 | |
162 | ppcmd = 0x30; | |
163 | } /* endif */ | |
164 | ||
165 | WriteByteToHwPort(baseAddr, ppcmd + pwm.bits.sb0); | |
166 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
167 | while (((tmp & 0x80) == 0) && (timeout < C6XDIGIO_TIME_OUT)) { | |
168 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
169 | timeout++; | |
170 | } | |
171 | ||
172 | WriteByteToHwPort(baseAddr, ppcmd + pwm.bits.sb1 + 0x4); | |
173 | timeout = 0; | |
174 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
175 | while (((tmp & 0x80) == 0x80) && (timeout < C6XDIGIO_TIME_OUT)) { | |
176 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
177 | timeout++; | |
178 | } | |
179 | ||
180 | WriteByteToHwPort(baseAddr, ppcmd + pwm.bits.sb2); | |
181 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
182 | while (((tmp & 0x80) == 0) && (timeout < C6XDIGIO_TIME_OUT)) { | |
183 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
184 | timeout++; | |
185 | } | |
186 | ||
187 | WriteByteToHwPort(baseAddr, ppcmd + pwm.bits.sb3 + 0x4); | |
188 | timeout = 0; | |
189 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
190 | while (((tmp & 0x80) == 0x80) && (timeout < C6XDIGIO_TIME_OUT)) { | |
191 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
192 | timeout++; | |
193 | } | |
194 | ||
195 | WriteByteToHwPort(baseAddr, ppcmd + pwm.bits.sb4); | |
196 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
197 | while (((tmp & 0x80) == 0) && (timeout < C6XDIGIO_TIME_OUT)) { | |
198 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
199 | timeout++; | |
200 | } | |
201 | ||
202 | WriteByteToHwPort(baseAddr, 0x0); | |
203 | timeout = 0; | |
204 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
205 | while (((tmp & 0x80) == 0x80) && (timeout < C6XDIGIO_TIME_OUT)) { | |
206 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
207 | timeout++; | |
208 | } | |
209 | ||
210 | } | |
211 | ||
212 | static int C6X_encInput(unsigned long baseAddr, unsigned channel) | |
213 | { | |
214 | unsigned ppcmd; | |
215 | union encvaluetype enc; | |
216 | int timeout = 0; | |
217 | int tmp; | |
218 | ||
219 | //printk("Inside C6X_encInput\n"); | |
220 | ||
221 | enc.value = 0; | |
222 | if (channel == 0) { | |
223 | ppcmd = 0x48; | |
224 | } else { | |
225 | ppcmd = 0x50; | |
226 | } | |
227 | WriteByteToHwPort(baseAddr, ppcmd); | |
228 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
229 | while (((tmp & 0x80) == 0) && (timeout < C6XDIGIO_TIME_OUT)) { | |
230 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
231 | timeout++; | |
232 | } | |
233 | ||
234 | enc.bits.sb0 = ((ReadByteFromHwPort(baseAddr + 1) >> 3) & 0x7); | |
235 | WriteByteToHwPort(baseAddr, ppcmd + 0x4); | |
236 | timeout = 0; | |
237 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
238 | while (((tmp & 0x80) == 0x80) && (timeout < C6XDIGIO_TIME_OUT)) { | |
239 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
240 | timeout++; | |
241 | } | |
242 | enc.bits.sb1 = ((ReadByteFromHwPort(baseAddr + 1) >> 3) & 0x7); | |
243 | WriteByteToHwPort(baseAddr, ppcmd); | |
244 | timeout = 0; | |
245 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
246 | while (((tmp & 0x80) == 0) && (timeout < C6XDIGIO_TIME_OUT)) { | |
247 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
248 | timeout++; | |
249 | } | |
250 | enc.bits.sb2 = ((ReadByteFromHwPort(baseAddr + 1) >> 3) & 0x7); | |
251 | WriteByteToHwPort(baseAddr, ppcmd + 0x4); | |
252 | timeout = 0; | |
253 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
254 | while (((tmp & 0x80) == 0x80) && (timeout < C6XDIGIO_TIME_OUT)) { | |
255 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
256 | timeout++; | |
257 | } | |
258 | enc.bits.sb3 = ((ReadByteFromHwPort(baseAddr + 1) >> 3) & 0x7); | |
259 | WriteByteToHwPort(baseAddr, ppcmd); | |
260 | timeout = 0; | |
261 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
262 | while (((tmp & 0x80) == 0) && (timeout < C6XDIGIO_TIME_OUT)) { | |
263 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
264 | timeout++; | |
265 | } | |
266 | enc.bits.sb4 = ((ReadByteFromHwPort(baseAddr + 1) >> 3) & 0x7); | |
267 | WriteByteToHwPort(baseAddr, ppcmd + 0x4); | |
268 | timeout = 0; | |
269 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
270 | while (((tmp & 0x80) == 0x80) && (timeout < C6XDIGIO_TIME_OUT)) { | |
271 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
272 | timeout++; | |
273 | } | |
274 | enc.bits.sb5 = ((ReadByteFromHwPort(baseAddr + 1) >> 3) & 0x7); | |
275 | WriteByteToHwPort(baseAddr, ppcmd); | |
276 | timeout = 0; | |
277 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
278 | while (((tmp & 0x80) == 0x0) && (timeout < C6XDIGIO_TIME_OUT)) { | |
279 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
280 | timeout++; | |
281 | } | |
282 | enc.bits.sb6 = ((ReadByteFromHwPort(baseAddr + 1) >> 3) & 0x7); | |
283 | WriteByteToHwPort(baseAddr, ppcmd + 0x4); | |
284 | timeout = 0; | |
285 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
286 | while (((tmp & 0x80) == 0x80) && (timeout < C6XDIGIO_TIME_OUT)) { | |
287 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
288 | timeout++; | |
289 | } | |
290 | enc.bits.sb7 = ((ReadByteFromHwPort(baseAddr + 1) >> 3) & 0x7); | |
291 | WriteByteToHwPort(baseAddr, ppcmd); | |
292 | timeout = 0; | |
293 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
294 | while (((tmp & 0x80) == 0x0) && (timeout < C6XDIGIO_TIME_OUT)) { | |
295 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
296 | timeout++; | |
297 | } | |
298 | ||
299 | WriteByteToHwPort(baseAddr, 0x0); | |
300 | timeout = 0; | |
301 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
302 | while (((tmp & 0x80) == 0x80) && (timeout < C6XDIGIO_TIME_OUT)) { | |
303 | tmp = ReadByteFromHwPort(baseAddr + 1); | |
304 | timeout++; | |
305 | } | |
306 | ||
307 | return (enc.value ^ 0x800000); | |
308 | } | |
309 | ||
310 | static void C6X_encResetAll(unsigned long baseAddr) | |
311 | { | |
312 | unsigned timeout = 0; | |
313 | ||
314 | //printk("Inside C6X_encResetAll\n"); | |
315 | ||
316 | WriteByteToHwPort(baseAddr, 0x68); | |
317 | while (((ReadByteFromHwPort(baseAddr + 1) & 0x80) == 0) | |
318 | && (timeout < C6XDIGIO_TIME_OUT)) { | |
319 | timeout++; | |
320 | } | |
321 | WriteByteToHwPort(baseAddr, 0x6C); | |
322 | timeout = 0; | |
323 | while (((ReadByteFromHwPort(baseAddr + 1) & 0x80) == 0x80) | |
324 | && (timeout < C6XDIGIO_TIME_OUT)) { | |
325 | timeout++; | |
326 | } | |
327 | WriteByteToHwPort(baseAddr, 0x68); | |
328 | timeout = 0; | |
329 | while (((ReadByteFromHwPort(baseAddr + 1) & 0x80) == 0x0) | |
330 | && (timeout < C6XDIGIO_TIME_OUT)) { | |
331 | timeout++; | |
332 | } | |
333 | WriteByteToHwPort(baseAddr, 0x0); | |
334 | timeout = 0; | |
335 | while (((ReadByteFromHwPort(baseAddr + 1) & 0x80) == 0x80) | |
336 | && (timeout < C6XDIGIO_TIME_OUT)) { | |
337 | timeout++; | |
338 | } | |
339 | } | |
340 | ||
71b5f4f1 | 341 | static int c6xdigio_pwmo_insn_read(struct comedi_device * dev, |
90035c08 | 342 | struct comedi_subdevice * s, struct comedi_insn * insn, unsigned int * data) |
2c89e159 GKH |
343 | { |
344 | printk("c6xdigio_pwmo_insn_read %x\n", insn->n); | |
345 | return insn->n; | |
346 | } | |
347 | ||
71b5f4f1 | 348 | static int c6xdigio_pwmo_insn_write(struct comedi_device * dev, |
90035c08 | 349 | struct comedi_subdevice * s, struct comedi_insn * insn, unsigned int * data) |
2c89e159 GKH |
350 | { |
351 | int i; | |
352 | int chan = CR_CHAN(insn->chanspec); | |
353 | ||
354 | // printk("c6xdigio_pwmo_insn_write %x\n", insn->n); | |
355 | for (i = 0; i < insn->n; i++) { | |
356 | C6X_pwmOutput(dev->iobase, chan, data[i]); | |
357 | /* devpriv->ao_readback[chan] = data[i]; */ | |
358 | } | |
359 | return i; | |
360 | } | |
361 | ||
71b5f4f1 | 362 | //static int c6xdigio_ei_init_insn_read(struct comedi_device *dev, |
34c43922 | 363 | // struct comedi_subdevice *s, |
90035c08 | 364 | // struct comedi_insn *insn, |
790c5541 | 365 | // unsigned int *data) |
2c89e159 GKH |
366 | //{ |
367 | // printk("c6xdigio_ei_init_insn_read %x\n", insn->n); | |
368 | // return insn->n; | |
369 | //} | |
370 | ||
71b5f4f1 | 371 | //static int c6xdigio_ei_init_insn_write(struct comedi_device *dev, |
34c43922 | 372 | // struct comedi_subdevice *s, |
90035c08 | 373 | // struct comedi_insn *insn, |
790c5541 | 374 | // unsigned int *data) |
2c89e159 GKH |
375 | //{ |
376 | // int i; | |
377 | // int chan = CR_CHAN(insn->chanspec); | |
378 | // | |
379 | // C6X_encResetAll( dev->iobase ); | |
380 | // | |
381 | // return insn->n; | |
382 | //} | |
383 | ||
71b5f4f1 | 384 | static int c6xdigio_ei_insn_read(struct comedi_device * dev, |
90035c08 | 385 | struct comedi_subdevice * s, struct comedi_insn * insn, unsigned int * data) |
2c89e159 GKH |
386 | { |
387 | // printk("c6xdigio_ei__insn_read %x\n", insn->n); | |
388 | int n; | |
389 | int chan = CR_CHAN(insn->chanspec); | |
390 | ||
391 | for (n = 0; n < insn->n; n++) { | |
392 | data[n] = (C6X_encInput(dev->iobase, chan) & 0xffffff); | |
393 | } | |
394 | ||
395 | return n; | |
396 | } | |
397 | ||
71b5f4f1 | 398 | static void board_init(struct comedi_device * dev) |
2c89e159 GKH |
399 | { |
400 | ||
401 | //printk("Inside board_init\n"); | |
402 | ||
403 | C6X_pwmInit(dev->iobase); | |
404 | C6X_encResetAll(dev->iobase); | |
405 | ||
406 | } | |
407 | ||
71b5f4f1 | 408 | //static void board_halt(struct comedi_device *dev) { |
2c89e159 GKH |
409 | // C6X_pwmInit(dev->iobase); |
410 | //} | |
411 | ||
412 | /* | |
413 | options[0] - I/O port | |
414 | options[1] - irq | |
415 | options[2] - number of encoder chips installed | |
416 | */ | |
417 | ||
418 | static const struct pnp_device_id c6xdigio_pnp_tbl[] = { | |
419 | /* Standard LPT Printer Port */ | |
420 | {.id = "PNP0400",.driver_data = 0}, | |
421 | /* ECP Printer Port */ | |
422 | {.id = "PNP0401",.driver_data = 0}, | |
423 | {} | |
424 | }; | |
425 | ||
426 | static struct pnp_driver c6xdigio_pnp_driver = { | |
427 | .name = "c6xdigio", | |
428 | .id_table = c6xdigio_pnp_tbl, | |
429 | }; | |
430 | ||
71b5f4f1 | 431 | static int c6xdigio_attach(struct comedi_device * dev, comedi_devconfig * it) |
2c89e159 GKH |
432 | { |
433 | int result = 0; | |
434 | unsigned long iobase; | |
435 | unsigned int irq; | |
34c43922 | 436 | struct comedi_subdevice *s; |
2c89e159 GKH |
437 | |
438 | iobase = it->options[0]; | |
439 | printk("comedi%d: c6xdigio: 0x%04lx\n", dev->minor, iobase); | |
440 | if (!request_region(iobase, C6XDIGIO_SIZE, "c6xdigio")) { | |
441 | printk("comedi%d: I/O port conflict\n", dev->minor); | |
442 | return -EIO; | |
443 | } | |
444 | dev->iobase = iobase; | |
445 | dev->board_name = "c6xdigio"; | |
446 | ||
447 | result = alloc_subdevices(dev, 2); // 3 with encoder_init write | |
448 | if (result < 0) | |
449 | return result; | |
450 | ||
451 | // Make sure that PnP ports gets activated | |
452 | pnp_register_driver(&c6xdigio_pnp_driver); | |
453 | ||
454 | irq = it->options[1]; | |
455 | if (irq > 0) { | |
456 | printk("comedi%d: irq = %u ignored\n", dev->minor, irq); | |
457 | } else if (irq == 0) { | |
458 | printk("comedi%d: no irq\n", dev->minor); | |
459 | } | |
460 | ||
461 | s = dev->subdevices + 0; | |
462 | /* pwm output subdevice */ | |
463 | s->type = COMEDI_SUBD_AO; // Not sure what to put here | |
464 | s->subdev_flags = SDF_WRITEABLE; | |
465 | s->n_chan = 2; | |
466 | /* s->trig[0] = c6xdigio_pwmo; */ | |
467 | s->insn_read = c6xdigio_pwmo_insn_read; | |
468 | s->insn_write = c6xdigio_pwmo_insn_write; | |
469 | s->maxdata = 500; | |
470 | s->range_table = &range_bipolar10; // A suitable lie | |
471 | ||
472 | s = dev->subdevices + 1; | |
473 | /* encoder (counter) subdevice */ | |
474 | s->type = COMEDI_SUBD_COUNTER; | |
475 | s->subdev_flags = SDF_READABLE | SDF_LSAMPL; | |
476 | s->n_chan = 2; | |
477 | /* s->trig[0] = c6xdigio_ei; */ | |
478 | s->insn_read = c6xdigio_ei_insn_read; | |
479 | s->maxdata = 0xffffff; | |
480 | s->range_table = &range_unknown; | |
481 | ||
482 | // s = dev->subdevices + 2; | |
483 | // /* pwm output subdevice */ | |
484 | // s->type = COMEDI_SUBD_COUNTER; // Not sure what to put here | |
485 | // s->subdev_flags = SDF_WRITEABLE; | |
486 | // s->n_chan = 1; | |
487 | // /* s->trig[0] = c6xdigio_ei_init; */ | |
488 | // s->insn_read = c6xdigio_ei_init_insn_read; | |
489 | // s->insn_write = c6xdigio_ei_init_insn_write; | |
490 | // s->maxdata = 0xFFFF; // Really just a don't care | |
491 | // s->range_table = &range_unknown; // Not sure what to put here | |
492 | ||
493 | // I will call this init anyway but more than likely the DSP board will not be connect | |
494 | // when device driver is loaded. | |
495 | board_init(dev); | |
496 | ||
497 | return 0; | |
498 | } | |
499 | ||
71b5f4f1 | 500 | static int c6xdigio_detach(struct comedi_device * dev) |
2c89e159 GKH |
501 | { |
502 | // board_halt(dev); // may not need this | |
503 | ||
504 | printk("comedi%d: c6xdigio: remove\n", dev->minor); | |
505 | ||
506 | if (dev->iobase) { | |
507 | release_region(dev->iobase, C6XDIGIO_SIZE); | |
508 | } | |
509 | if (dev->irq) { | |
510 | free_irq(dev->irq, dev); | |
511 | } // Not using IRQ so I am not sure if I need this | |
512 | pnp_unregister_driver(&c6xdigio_pnp_driver); | |
513 | ||
514 | return 0; | |
515 | } | |
516 | ||
517 | COMEDI_INITCLEANUP(driver_c6xdigio); |