Commit | Line | Data |
---|---|---|
f0922ec5 DS |
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 | /* | |
24 | Driver: cb_das16_cs | |
25 | Description: Computer Boards PC-CARD DAS16/16 | |
26 | Devices: [ComputerBoards] PC-CARD DAS16/16 (cb_das16_cs), PC-CARD DAS16/16-AO | |
27 | Author: ds | |
28 | Updated: Mon, 04 Nov 2002 20:04:21 -0800 | |
29 | Status: experimental | |
30 | ||
31 | ||
32 | */ | |
33 | ||
25436dc9 | 34 | #include <linux/interrupt.h> |
5a0e3ad6 | 35 | #include <linux/slab.h> |
f0922ec5 DS |
36 | #include "../comedidev.h" |
37 | #include <linux/delay.h> | |
38 | #include <linux/pci.h> | |
39 | ||
f0922ec5 DS |
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 | ||
3281a63d | 58 | struct das16cs_board { |
f0922ec5 DS |
59 | const char *name; |
60 | int device_id; | |
61 | int n_ao_chans; | |
3281a63d BP |
62 | }; |
63 | static const struct das16cs_board das16cs_boards[] = { | |
f0922ec5 | 64 | { |
0a85b6f0 MT |
65 | .device_id = 0x0000, /* unknown */ |
66 | .name = "PC-CARD DAS16/16", | |
67 | .n_ao_chans = 0, | |
68 | }, | |
f0922ec5 | 69 | { |
0a85b6f0 MT |
70 | .device_id = 0x0039, |
71 | .name = "PC-CARD DAS16/16-AO", | |
72 | .n_ao_chans = 2, | |
73 | }, | |
f0922ec5 | 74 | { |
0a85b6f0 MT |
75 | .device_id = 0x4009, |
76 | .name = "PCM-DAS16s/16", | |
77 | .n_ao_chans = 0, | |
78 | }, | |
f0922ec5 DS |
79 | }; |
80 | ||
b6ac1613 | 81 | #define n_boards ARRAY_SIZE(das16cs_boards) |
3281a63d | 82 | #define thisboard ((const struct das16cs_board *)dev->board_ptr) |
f0922ec5 | 83 | |
bfae362a | 84 | struct das16cs_private { |
f0922ec5 DS |
85 | struct pcmcia_device *link; |
86 | ||
790c5541 | 87 | unsigned int ao_readback[2]; |
f0922ec5 DS |
88 | unsigned short status1; |
89 | unsigned short status2; | |
bfae362a BP |
90 | }; |
91 | #define devpriv ((struct das16cs_private *)dev->private) | |
f0922ec5 | 92 | |
0a85b6f0 MT |
93 | static int das16cs_attach(struct comedi_device *dev, |
94 | struct comedi_devconfig *it); | |
da91b269 | 95 | static int das16cs_detach(struct comedi_device *dev); |
139dfbdf | 96 | static struct comedi_driver driver_das16cs = { |
68c3dbff BP |
97 | .driver_name = "cb_das16_cs", |
98 | .module = THIS_MODULE, | |
99 | .attach = das16cs_attach, | |
100 | .detach = das16cs_detach, | |
f0922ec5 DS |
101 | }; |
102 | ||
103 | static struct pcmcia_device *cur_dev = NULL; | |
104 | ||
9ced1de6 | 105 | static const struct comedi_lrange das16cs_ai_range = { 4, { |
0a85b6f0 MT |
106 | RANGE(-10, 10), |
107 | RANGE(-5, 5), | |
108 | RANGE(-2.5, 2.5), | |
109 | RANGE(-1.25, 1.25), | |
110 | } | |
f0922ec5 DS |
111 | }; |
112 | ||
70265d24 | 113 | static irqreturn_t das16cs_interrupt(int irq, void *d); |
0a85b6f0 MT |
114 | static int das16cs_ai_rinsn(struct comedi_device *dev, |
115 | struct comedi_subdevice *s, | |
116 | struct comedi_insn *insn, unsigned int *data); | |
117 | static int das16cs_ai_cmd(struct comedi_device *dev, | |
118 | struct comedi_subdevice *s); | |
119 | static int das16cs_ai_cmdtest(struct comedi_device *dev, | |
120 | struct comedi_subdevice *s, | |
121 | struct comedi_cmd *cmd); | |
122 | static int das16cs_ao_winsn(struct comedi_device *dev, | |
123 | struct comedi_subdevice *s, | |
124 | struct comedi_insn *insn, unsigned int *data); | |
125 | static int das16cs_ao_rinsn(struct comedi_device *dev, | |
126 | struct comedi_subdevice *s, | |
127 | struct comedi_insn *insn, unsigned int *data); | |
128 | static int das16cs_dio_insn_bits(struct comedi_device *dev, | |
129 | struct comedi_subdevice *s, | |
130 | struct comedi_insn *insn, unsigned int *data); | |
131 | static int das16cs_dio_insn_config(struct comedi_device *dev, | |
132 | struct comedi_subdevice *s, | |
133 | struct comedi_insn *insn, | |
134 | unsigned int *data); | |
135 | static int das16cs_timer_insn_read(struct comedi_device *dev, | |
136 | struct comedi_subdevice *s, | |
137 | struct comedi_insn *insn, | |
138 | unsigned int *data); | |
139 | static int das16cs_timer_insn_config(struct comedi_device *dev, | |
140 | struct comedi_subdevice *s, | |
141 | struct comedi_insn *insn, | |
142 | unsigned int *data); | |
814900c9 | 143 | |
0a85b6f0 MT |
144 | static const struct das16cs_board *das16cs_probe(struct comedi_device *dev, |
145 | struct pcmcia_device *link) | |
f0922ec5 | 146 | { |
f0922ec5 DS |
147 | int i; |
148 | ||
f0922ec5 | 149 | for (i = 0; i < n_boards; i++) { |
55a19b39 | 150 | if (das16cs_boards[i].device_id == link->card_id) |
f0922ec5 | 151 | return das16cs_boards + i; |
f0922ec5 DS |
152 | } |
153 | ||
154 | printk("unknown board!\n"); | |
155 | ||
156 | return NULL; | |
157 | } | |
158 | ||
0a85b6f0 MT |
159 | static int das16cs_attach(struct comedi_device *dev, |
160 | struct comedi_devconfig *it) | |
f0922ec5 DS |
161 | { |
162 | struct pcmcia_device *link; | |
34c43922 | 163 | struct comedi_subdevice *s; |
f0922ec5 DS |
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 | ||
9a017a91 | 173 | dev->iobase = link->resource[0]->start;; |
f0922ec5 DS |
174 | printk("I/O base=0x%04lx ", dev->iobase); |
175 | ||
176 | printk("fingerprint:\n"); | |
7b8f2d1a | 177 | for (i = 0; i < 48; i += 2) |
f0922ec5 | 178 | printk("%04x ", inw(dev->iobase + i)); |
7b8f2d1a | 179 | |
f0922ec5 DS |
180 | printk("\n"); |
181 | ||
eb14120f | 182 | ret = request_irq(link->irq, das16cs_interrupt, |
5f74ea14 | 183 | IRQF_SHARED, "cb_das16_cs", dev); |
7b8f2d1a | 184 | if (ret < 0) |
f0922ec5 | 185 | return ret; |
7b8f2d1a | 186 | |
eb14120f | 187 | dev->irq = link->irq; |
c8d1a126 | 188 | |
f0922ec5 DS |
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 | ||
bfae362a | 197 | if (alloc_private(dev, sizeof(struct das16cs_private)) < 0) |
f0922ec5 DS |
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 | ||
da91b269 | 261 | static int das16cs_detach(struct comedi_device *dev) |
f0922ec5 DS |
262 | { |
263 | printk("comedi%d: das16cs: remove\n", dev->minor); | |
264 | ||
7b8f2d1a | 265 | if (dev->irq) |
5f74ea14 | 266 | free_irq(dev->irq, dev); |
7b8f2d1a | 267 | |
f0922ec5 DS |
268 | |
269 | return 0; | |
270 | } | |
271 | ||
70265d24 | 272 | static irqreturn_t das16cs_interrupt(int irq, void *d) |
f0922ec5 | 273 | { |
2696fb57 | 274 | /* struct comedi_device *dev = d; */ |
f0922ec5 DS |
275 | return IRQ_HANDLED; |
276 | } | |
277 | ||
278 | /* | |
279 | * "instructions" read/write data in "one-shot" or "software-triggered" | |
280 | * mode. | |
281 | */ | |
0a85b6f0 MT |
282 | static int das16cs_ai_rinsn(struct comedi_device *dev, |
283 | struct comedi_subdevice *s, | |
284 | struct comedi_insn *insn, unsigned int *data) | |
f0922ec5 DS |
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 | ||
da91b269 | 325 | static int das16cs_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) |
f0922ec5 DS |
326 | { |
327 | return -EINVAL; | |
328 | } | |
329 | ||
0a85b6f0 MT |
330 | static int das16cs_ai_cmdtest(struct comedi_device *dev, |
331 | struct comedi_subdevice *s, | |
332 | struct comedi_cmd *cmd) | |
f0922ec5 DS |
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 | ||
828684f9 | 376 | /* note that mutual compatibility is not an issue here */ |
f0922ec5 | 377 | if (cmd->scan_begin_src != TRIG_TIMER && |
0a85b6f0 | 378 | cmd->scan_begin_src != TRIG_EXT) |
f0922ec5 DS |
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) { | |
48b1aff5 | 456 | unsigned int div1 = 0, div2 = 0; |
f0922ec5 DS |
457 | |
458 | tmp = cmd->scan_begin_arg; | |
459 | i8253_cascade_ns_to_timer(100, &div1, &div2, | |
0a85b6f0 MT |
460 | &cmd->scan_begin_arg, |
461 | cmd->flags & TRIG_ROUND_MASK); | |
f0922ec5 DS |
462 | if (tmp != cmd->scan_begin_arg) |
463 | err++; | |
464 | } | |
465 | if (cmd->convert_src == TRIG_TIMER) { | |
48b1aff5 | 466 | unsigned int div1 = 0, div2 = 0; |
f0922ec5 DS |
467 | |
468 | tmp = cmd->convert_arg; | |
469 | i8253_cascade_ns_to_timer(100, &div1, &div2, | |
0a85b6f0 MT |
470 | &cmd->scan_begin_arg, |
471 | cmd->flags & TRIG_ROUND_MASK); | |
f0922ec5 DS |
472 | if (tmp != cmd->convert_arg) |
473 | err++; | |
474 | if (cmd->scan_begin_src == TRIG_TIMER && | |
0a85b6f0 MT |
475 | cmd->scan_begin_arg < |
476 | cmd->convert_arg * cmd->scan_end_arg) { | |
f0922ec5 | 477 | cmd->scan_begin_arg = |
0a85b6f0 | 478 | cmd->convert_arg * cmd->scan_end_arg; |
f0922ec5 DS |
479 | err++; |
480 | } | |
481 | } | |
482 | ||
483 | if (err) | |
484 | return 4; | |
485 | ||
486 | return 0; | |
487 | } | |
488 | ||
0a85b6f0 MT |
489 | static int das16cs_ao_winsn(struct comedi_device *dev, |
490 | struct comedi_subdevice *s, | |
491 | struct comedi_insn *insn, unsigned int *data) | |
f0922ec5 DS |
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); | |
5f74ea14 | 504 | udelay(1); |
f0922ec5 DS |
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); | |
5f74ea14 | 514 | udelay(1); |
f0922ec5 DS |
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); | |
5f74ea14 | 521 | udelay(1); |
f0922ec5 DS |
522 | /* printk("0x%04x\n",status1 | b | 0x0004);*/ |
523 | outw(status1 | b | 0x0004, dev->iobase + 4); | |
5f74ea14 | 524 | udelay(1); |
f0922ec5 DS |
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. */ | |
0a85b6f0 MT |
536 | static int das16cs_ao_rinsn(struct comedi_device *dev, |
537 | struct comedi_subdevice *s, | |
538 | struct comedi_insn *insn, unsigned int *data) | |
f0922ec5 DS |
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 */ | |
0a85b6f0 MT |
554 | static int das16cs_dio_insn_bits(struct comedi_device *dev, |
555 | struct comedi_subdevice *s, | |
556 | struct comedi_insn *insn, unsigned int *data) | |
f0922ec5 DS |
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 | ||
0a85b6f0 MT |
575 | static int das16cs_dio_insn_config(struct comedi_device *dev, |
576 | struct comedi_subdevice *s, | |
577 | struct comedi_insn *insn, unsigned int *data) | |
f0922ec5 DS |
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] = | |
0a85b6f0 | 596 | (s->io_bits & (1 << chan)) ? COMEDI_OUTPUT : COMEDI_INPUT; |
f0922ec5 DS |
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 | ||
0a85b6f0 MT |
613 | static int das16cs_timer_insn_read(struct comedi_device *dev, |
614 | struct comedi_subdevice *s, | |
615 | struct comedi_insn *insn, unsigned int *data) | |
f0922ec5 DS |
616 | { |
617 | return -EINVAL; | |
618 | } | |
619 | ||
0a85b6f0 MT |
620 | static int das16cs_timer_insn_config(struct comedi_device *dev, |
621 | struct comedi_subdevice *s, | |
622 | struct comedi_insn *insn, | |
623 | unsigned int *data) | |
f0922ec5 DS |
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 | ||
f0922ec5 DS |
641 | #if defined(CONFIG_PCMCIA) || defined(CONFIG_PCMCIA_MODULE) |
642 | ||
f0922ec5 DS |
643 | static void das16cs_pcmcia_config(struct pcmcia_device *link); |
644 | static void das16cs_pcmcia_release(struct pcmcia_device *link); | |
645 | static int das16cs_pcmcia_suspend(struct pcmcia_device *p_dev); | |
646 | static 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 | ||
654 | static int das16cs_pcmcia_attach(struct pcmcia_device *); | |
655 | static 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 | ||
d2755d51 | 664 | struct local_info_t { |
f0922ec5 | 665 | struct pcmcia_device *link; |
f0922ec5 DS |
666 | int stop; |
667 | struct bus_operations *bus; | |
d2755d51 | 668 | }; |
f0922ec5 DS |
669 | |
670 | /*====================================================================== | |
671 | ||
672 | das16cs_pcmcia_attach() creates an "instance" of the driver, allocating | |
673 | local data structures for one device. The device is registered | |
674 | with Card Services. | |
675 | ||
676 | The dev_link structure is initialized, but we don't actually | |
677 | configure the card at this point -- we wait until we receive a | |
678 | card insertion event. | |
679 | ||
680 | ======================================================================*/ | |
681 | ||
682 | static int das16cs_pcmcia_attach(struct pcmcia_device *link) | |
683 | { | |
d2755d51 | 684 | struct local_info_t *local; |
f0922ec5 | 685 | |
55a19b39 | 686 | dev_dbg(&link->dev, "das16cs_pcmcia_attach()\n"); |
f0922ec5 DS |
687 | |
688 | /* Allocate space for private device-specific data */ | |
d2755d51 | 689 | local = kzalloc(sizeof(struct local_info_t), GFP_KERNEL); |
f0922ec5 DS |
690 | if (!local) |
691 | return -ENOMEM; | |
692 | local->link = link; | |
693 | link->priv = local; | |
694 | ||
695 | /* Initialize the pcmcia_device structure */ | |
f0922ec5 DS |
696 | link->conf.Attributes = 0; |
697 | link->conf.IntType = INT_MEMORY_AND_IO; | |
698 | ||
699 | cur_dev = link; | |
700 | ||
701 | das16cs_pcmcia_config(link); | |
702 | ||
703 | return 0; | |
704 | } /* das16cs_pcmcia_attach */ | |
705 | ||
706 | static void das16cs_pcmcia_detach(struct pcmcia_device *link) | |
707 | { | |
55a19b39 | 708 | dev_dbg(&link->dev, "das16cs_pcmcia_detach\n"); |
f0922ec5 | 709 | |
eb8804f6 JMC |
710 | ((struct local_info_t *)link->priv)->stop = 1; |
711 | das16cs_pcmcia_release(link); | |
d2755d51 | 712 | /* This points to the parent struct local_info_t struct */ |
f25bd6bf | 713 | kfree(link->priv); |
f0922ec5 DS |
714 | } /* das16cs_pcmcia_detach */ |
715 | ||
f0922ec5 | 716 | |
55a19b39 DB |
717 | static int das16cs_pcmcia_config_loop(struct pcmcia_device *p_dev, |
718 | cistpl_cftable_entry_t *cfg, | |
719 | cistpl_cftable_entry_t *dflt, | |
720 | unsigned int vcc, | |
721 | void *priv_data) | |
722 | { | |
723 | if (cfg->index == 0) | |
724 | return -EINVAL; | |
f0922ec5 | 725 | |
55a19b39 | 726 | /* Do we need to allocate an interrupt? */ |
eb14120f | 727 | p_dev->conf.Attributes |= CONF_ENABLE_IRQ; |
55a19b39 DB |
728 | |
729 | /* IO window settings */ | |
90abdc3b | 730 | p_dev->resource[0]->end = p_dev->resource[1]->end = 0; |
55a19b39 DB |
731 | if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) { |
732 | cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io; | |
90abdc3b DB |
733 | p_dev->io_lines = io->flags & CISTPL_IO_LINES_MASK; |
734 | p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; | |
735 | p_dev->resource[0]->flags |= | |
736 | pcmcia_io_cfg_data_width(io->flags); | |
737 | p_dev->resource[0]->start = io->win[0].base; | |
738 | p_dev->resource[0]->end = io->win[0].len; | |
55a19b39 | 739 | if (io->nwin > 1) { |
90abdc3b DB |
740 | p_dev->resource[1]->flags = p_dev->resource[0]->flags; |
741 | p_dev->resource[1]->start = io->win[1].base; | |
742 | p_dev->resource[1]->end = io->win[1].len; | |
f0922ec5 | 743 | } |
55a19b39 | 744 | /* This reserves IO space but doesn't actually enable it */ |
90abdc3b | 745 | return pcmcia_request_io(p_dev); |
55a19b39 | 746 | } |
f0922ec5 | 747 | |
55a19b39 DB |
748 | return 0; |
749 | } | |
750 | ||
751 | static void das16cs_pcmcia_config(struct pcmcia_device *link) | |
752 | { | |
55a19b39 | 753 | int ret; |
f0922ec5 | 754 | |
55a19b39 | 755 | dev_dbg(&link->dev, "das16cs_pcmcia_config\n"); |
c3744138 | 756 | |
55a19b39 DB |
757 | ret = pcmcia_loop_config(link, das16cs_pcmcia_config_loop, NULL); |
758 | if (ret) { | |
759 | dev_warn(&link->dev, "no configuration found\n"); | |
760 | goto failed; | |
f0922ec5 DS |
761 | } |
762 | ||
eb14120f DB |
763 | if (!link->irq) |
764 | goto failed; | |
765 | ||
f0922ec5 DS |
766 | /* |
767 | This actually configures the PCMCIA socket -- setting up | |
768 | the I/O windows and the interrupt mapping, and putting the | |
769 | card and host interface into "Memory and IO" mode. | |
770 | */ | |
55a19b39 DB |
771 | ret = pcmcia_request_configuration(link, &link->conf); |
772 | if (ret) | |
773 | goto failed; | |
f0922ec5 | 774 | |
f0922ec5 | 775 | /* Finally, report what we've done */ |
eb8804f6 | 776 | dev_info(&link->dev, "index 0x%02x", link->conf.ConfigIndex); |
f0922ec5 | 777 | if (link->conf.Attributes & CONF_ENABLE_IRQ) |
eb14120f | 778 | printk(", irq %u", link->irq); |
9a017a91 DB |
779 | if (link->resource[0]) |
780 | printk(", io %pR", link->resource[0]); | |
781 | if (link->resource[1]) | |
782 | printk(", io %pR", link->resource[1]); | |
f0922ec5 DS |
783 | printk("\n"); |
784 | ||
785 | return; | |
786 | ||
55a19b39 | 787 | failed: |
f0922ec5 DS |
788 | das16cs_pcmcia_release(link); |
789 | } /* das16cs_pcmcia_config */ | |
790 | ||
791 | static void das16cs_pcmcia_release(struct pcmcia_device *link) | |
792 | { | |
55a19b39 | 793 | dev_dbg(&link->dev, "das16cs_pcmcia_release\n"); |
f0922ec5 DS |
794 | pcmcia_disable_device(link); |
795 | } /* das16cs_pcmcia_release */ | |
796 | ||
797 | static int das16cs_pcmcia_suspend(struct pcmcia_device *link) | |
798 | { | |
d2755d51 | 799 | struct local_info_t *local = link->priv; |
f0922ec5 DS |
800 | |
801 | /* Mark the device as stopped, to block IO until later */ | |
802 | local->stop = 1; | |
803 | ||
804 | return 0; | |
805 | } /* das16cs_pcmcia_suspend */ | |
806 | ||
807 | static int das16cs_pcmcia_resume(struct pcmcia_device *link) | |
808 | { | |
d2755d51 | 809 | struct local_info_t *local = link->priv; |
f0922ec5 DS |
810 | |
811 | local->stop = 0; | |
812 | return 0; | |
813 | } /* das16cs_pcmcia_resume */ | |
814 | ||
815 | /*====================================================================*/ | |
816 | ||
817 | static struct pcmcia_device_id das16cs_id_table[] = { | |
818 | PCMCIA_DEVICE_MANF_CARD(0x01c5, 0x0039), | |
819 | PCMCIA_DEVICE_MANF_CARD(0x01c5, 0x4009), | |
820 | PCMCIA_DEVICE_NULL | |
821 | }; | |
822 | ||
823 | MODULE_DEVICE_TABLE(pcmcia, das16cs_id_table); | |
6c7f8196 AK |
824 | MODULE_AUTHOR("David A. Schleef <ds@schleef.org>"); |
825 | MODULE_DESCRIPTION("Comedi driver for Computer Boards PC-CARD DAS16/16"); | |
826 | MODULE_LICENSE("GPL"); | |
f0922ec5 DS |
827 | |
828 | struct pcmcia_driver das16cs_driver = { | |
829 | .probe = das16cs_pcmcia_attach, | |
830 | .remove = das16cs_pcmcia_detach, | |
831 | .suspend = das16cs_pcmcia_suspend, | |
832 | .resume = das16cs_pcmcia_resume, | |
833 | .id_table = das16cs_id_table, | |
834 | .owner = THIS_MODULE, | |
835 | .drv = { | |
1685e633 | 836 | .name = "cb_das16_cs", |
f0922ec5 DS |
837 | }, |
838 | }; | |
839 | ||
840 | static int __init init_das16cs_pcmcia_cs(void) | |
841 | { | |
f0922ec5 DS |
842 | pcmcia_register_driver(&das16cs_driver); |
843 | return 0; | |
844 | } | |
845 | ||
846 | static void __exit exit_das16cs_pcmcia_cs(void) | |
847 | { | |
55a19b39 | 848 | pr_debug("das16cs_pcmcia_cs: unloading\n"); |
f0922ec5 DS |
849 | pcmcia_unregister_driver(&das16cs_driver); |
850 | } | |
851 | ||
852 | int __init init_module(void) | |
853 | { | |
854 | int ret; | |
855 | ||
856 | ret = init_das16cs_pcmcia_cs(); | |
857 | if (ret < 0) | |
858 | return ret; | |
859 | ||
860 | return comedi_driver_register(&driver_das16cs); | |
861 | } | |
862 | ||
863 | void __exit cleanup_module(void) | |
864 | { | |
865 | exit_das16cs_pcmcia_cs(); | |
866 | comedi_driver_unregister(&driver_das16cs); | |
867 | } | |
868 | ||
869 | #else | |
7114a280 AT |
870 | static int __init driver_das16cs_init_module(void) |
871 | { | |
872 | return comedi_driver_register(&driver_das16cs); | |
873 | } | |
874 | ||
875 | static void __exit driver_das16cs_cleanup_module(void) | |
876 | { | |
877 | comedi_driver_unregister(&driver_das16cs); | |
878 | } | |
879 | ||
880 | module_init(driver_das16cs_init_module); | |
881 | module_exit(driver_das16cs_cleanup_module); | |
2696fb57 | 882 | #endif /* CONFIG_PCMCIA */ |