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/cistpl.h> |
41 | #include <pcmcia/ds.h> | |
42 | ||
43 | #include "8253.h" | |
44 | ||
45 | #define DAS16CS_SIZE 18 | |
46 | ||
47 | #define DAS16CS_ADC_DATA 0 | |
48 | #define DAS16CS_DIO_MUX 2 | |
49 | #define DAS16CS_MISC1 4 | |
50 | #define DAS16CS_MISC2 6 | |
51 | #define DAS16CS_CTR0 8 | |
52 | #define DAS16CS_CTR1 10 | |
53 | #define DAS16CS_CTR2 12 | |
54 | #define DAS16CS_CTR_CONTROL 14 | |
55 | #define DAS16CS_DIO 16 | |
56 | ||
3281a63d | 57 | struct das16cs_board { |
f0922ec5 DS |
58 | const char *name; |
59 | int device_id; | |
60 | int n_ao_chans; | |
3281a63d BP |
61 | }; |
62 | static const struct das16cs_board das16cs_boards[] = { | |
f0922ec5 | 63 | { |
0a85b6f0 MT |
64 | .device_id = 0x0000, /* unknown */ |
65 | .name = "PC-CARD DAS16/16", | |
66 | .n_ao_chans = 0, | |
67 | }, | |
f0922ec5 | 68 | { |
0a85b6f0 MT |
69 | .device_id = 0x0039, |
70 | .name = "PC-CARD DAS16/16-AO", | |
71 | .n_ao_chans = 2, | |
72 | }, | |
f0922ec5 | 73 | { |
0a85b6f0 MT |
74 | .device_id = 0x4009, |
75 | .name = "PCM-DAS16s/16", | |
76 | .n_ao_chans = 0, | |
77 | }, | |
f0922ec5 DS |
78 | }; |
79 | ||
b6ac1613 | 80 | #define n_boards ARRAY_SIZE(das16cs_boards) |
3281a63d | 81 | #define thisboard ((const struct das16cs_board *)dev->board_ptr) |
f0922ec5 | 82 | |
bfae362a | 83 | struct das16cs_private { |
f0922ec5 DS |
84 | struct pcmcia_device *link; |
85 | ||
790c5541 | 86 | unsigned int ao_readback[2]; |
f0922ec5 DS |
87 | unsigned short status1; |
88 | unsigned short status2; | |
bfae362a BP |
89 | }; |
90 | #define devpriv ((struct das16cs_private *)dev->private) | |
f0922ec5 | 91 | |
0a85b6f0 MT |
92 | static int das16cs_attach(struct comedi_device *dev, |
93 | struct comedi_devconfig *it); | |
da91b269 | 94 | static int das16cs_detach(struct comedi_device *dev); |
139dfbdf | 95 | static struct comedi_driver driver_das16cs = { |
68c3dbff BP |
96 | .driver_name = "cb_das16_cs", |
97 | .module = THIS_MODULE, | |
98 | .attach = das16cs_attach, | |
99 | .detach = das16cs_detach, | |
f0922ec5 DS |
100 | }; |
101 | ||
102 | static struct pcmcia_device *cur_dev = NULL; | |
103 | ||
9ced1de6 | 104 | static const struct comedi_lrange das16cs_ai_range = { 4, { |
0a85b6f0 MT |
105 | RANGE(-10, 10), |
106 | RANGE(-5, 5), | |
107 | RANGE(-2.5, 2.5), | |
108 | RANGE(-1.25, 1.25), | |
109 | } | |
f0922ec5 DS |
110 | }; |
111 | ||
70265d24 | 112 | static irqreturn_t das16cs_interrupt(int irq, void *d); |
0a85b6f0 MT |
113 | static int das16cs_ai_rinsn(struct comedi_device *dev, |
114 | struct comedi_subdevice *s, | |
115 | struct comedi_insn *insn, unsigned int *data); | |
116 | static int das16cs_ai_cmd(struct comedi_device *dev, | |
117 | struct comedi_subdevice *s); | |
118 | static int das16cs_ai_cmdtest(struct comedi_device *dev, | |
119 | struct comedi_subdevice *s, | |
120 | struct comedi_cmd *cmd); | |
121 | static int das16cs_ao_winsn(struct comedi_device *dev, | |
122 | struct comedi_subdevice *s, | |
123 | struct comedi_insn *insn, unsigned int *data); | |
124 | static int das16cs_ao_rinsn(struct comedi_device *dev, | |
125 | struct comedi_subdevice *s, | |
126 | struct comedi_insn *insn, unsigned int *data); | |
127 | static int das16cs_dio_insn_bits(struct comedi_device *dev, | |
128 | struct comedi_subdevice *s, | |
129 | struct comedi_insn *insn, unsigned int *data); | |
130 | static int das16cs_dio_insn_config(struct comedi_device *dev, | |
131 | struct comedi_subdevice *s, | |
132 | struct comedi_insn *insn, | |
133 | unsigned int *data); | |
134 | static int das16cs_timer_insn_read(struct comedi_device *dev, | |
135 | struct comedi_subdevice *s, | |
136 | struct comedi_insn *insn, | |
137 | unsigned int *data); | |
138 | static int das16cs_timer_insn_config(struct comedi_device *dev, | |
139 | struct comedi_subdevice *s, | |
140 | struct comedi_insn *insn, | |
141 | unsigned int *data); | |
814900c9 | 142 | |
0a85b6f0 MT |
143 | static const struct das16cs_board *das16cs_probe(struct comedi_device *dev, |
144 | struct pcmcia_device *link) | |
f0922ec5 | 145 | { |
f0922ec5 DS |
146 | int i; |
147 | ||
f0922ec5 | 148 | for (i = 0; i < n_boards; i++) { |
55a19b39 | 149 | if (das16cs_boards[i].device_id == link->card_id) |
f0922ec5 | 150 | return das16cs_boards + i; |
f0922ec5 DS |
151 | } |
152 | ||
153 | printk("unknown board!\n"); | |
154 | ||
155 | return NULL; | |
156 | } | |
157 | ||
0a85b6f0 MT |
158 | static int das16cs_attach(struct comedi_device *dev, |
159 | struct comedi_devconfig *it) | |
f0922ec5 DS |
160 | { |
161 | struct pcmcia_device *link; | |
34c43922 | 162 | struct comedi_subdevice *s; |
f0922ec5 DS |
163 | int ret; |
164 | int i; | |
165 | ||
166 | printk("comedi%d: cb_das16_cs: ", dev->minor); | |
167 | ||
168 | link = cur_dev; /* XXX hack */ | |
169 | if (!link) | |
170 | return -EIO; | |
171 | ||
9a017a91 | 172 | dev->iobase = link->resource[0]->start;; |
f0922ec5 DS |
173 | printk("I/O base=0x%04lx ", dev->iobase); |
174 | ||
175 | printk("fingerprint:\n"); | |
7b8f2d1a | 176 | for (i = 0; i < 48; i += 2) |
f0922ec5 | 177 | printk("%04x ", inw(dev->iobase + i)); |
7b8f2d1a | 178 | |
f0922ec5 DS |
179 | printk("\n"); |
180 | ||
eb14120f | 181 | ret = request_irq(link->irq, das16cs_interrupt, |
5f74ea14 | 182 | IRQF_SHARED, "cb_das16_cs", dev); |
7b8f2d1a | 183 | if (ret < 0) |
f0922ec5 | 184 | return ret; |
7b8f2d1a | 185 | |
eb14120f | 186 | dev->irq = link->irq; |
c8d1a126 | 187 | |
f0922ec5 DS |
188 | printk("irq=%u ", dev->irq); |
189 | ||
190 | dev->board_ptr = das16cs_probe(dev, link); | |
191 | if (!dev->board_ptr) | |
192 | return -EIO; | |
193 | ||
194 | dev->board_name = thisboard->name; | |
195 | ||
bfae362a | 196 | if (alloc_private(dev, sizeof(struct das16cs_private)) < 0) |
f0922ec5 DS |
197 | return -ENOMEM; |
198 | ||
199 | if (alloc_subdevices(dev, 4) < 0) | |
200 | return -ENOMEM; | |
201 | ||
202 | s = dev->subdevices + 0; | |
203 | dev->read_subdev = s; | |
204 | /* analog input subdevice */ | |
205 | s->type = COMEDI_SUBD_AI; | |
206 | s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DIFF | SDF_CMD_READ; | |
207 | s->n_chan = 16; | |
208 | s->maxdata = 0xffff; | |
209 | s->range_table = &das16cs_ai_range; | |
210 | s->len_chanlist = 16; | |
211 | s->insn_read = das16cs_ai_rinsn; | |
212 | s->do_cmd = das16cs_ai_cmd; | |
213 | s->do_cmdtest = das16cs_ai_cmdtest; | |
214 | ||
215 | s = dev->subdevices + 1; | |
216 | /* analog output subdevice */ | |
217 | if (thisboard->n_ao_chans) { | |
218 | s->type = COMEDI_SUBD_AO; | |
219 | s->subdev_flags = SDF_WRITABLE; | |
220 | s->n_chan = thisboard->n_ao_chans; | |
221 | s->maxdata = 0xffff; | |
222 | s->range_table = &range_bipolar10; | |
223 | s->insn_write = &das16cs_ao_winsn; | |
224 | s->insn_read = &das16cs_ao_rinsn; | |
225 | } | |
226 | ||
227 | s = dev->subdevices + 2; | |
228 | /* digital i/o subdevice */ | |
229 | if (1) { | |
230 | s->type = COMEDI_SUBD_DIO; | |
231 | s->subdev_flags = SDF_READABLE | SDF_WRITABLE; | |
232 | s->n_chan = 8; | |
233 | s->maxdata = 1; | |
234 | s->range_table = &range_digital; | |
235 | s->insn_bits = das16cs_dio_insn_bits; | |
236 | s->insn_config = das16cs_dio_insn_config; | |
237 | } else { | |
238 | s->type = COMEDI_SUBD_UNUSED; | |
239 | } | |
240 | ||
241 | s = dev->subdevices + 3; | |
242 | /* timer subdevice */ | |
243 | if (0) { | |
244 | s->type = COMEDI_SUBD_TIMER; | |
245 | s->subdev_flags = SDF_READABLE | SDF_WRITABLE; | |
246 | s->n_chan = 1; | |
247 | s->maxdata = 0xff; | |
248 | s->range_table = &range_unknown; | |
249 | s->insn_read = das16cs_timer_insn_read; | |
250 | s->insn_config = das16cs_timer_insn_config; | |
251 | } else { | |
252 | s->type = COMEDI_SUBD_UNUSED; | |
253 | } | |
254 | ||
255 | printk("attached\n"); | |
256 | ||
257 | return 1; | |
258 | } | |
259 | ||
da91b269 | 260 | static int das16cs_detach(struct comedi_device *dev) |
f0922ec5 DS |
261 | { |
262 | printk("comedi%d: das16cs: remove\n", dev->minor); | |
263 | ||
7b8f2d1a | 264 | if (dev->irq) |
5f74ea14 | 265 | free_irq(dev->irq, dev); |
7b8f2d1a | 266 | |
f0922ec5 DS |
267 | |
268 | return 0; | |
269 | } | |
270 | ||
70265d24 | 271 | static irqreturn_t das16cs_interrupt(int irq, void *d) |
f0922ec5 | 272 | { |
2696fb57 | 273 | /* struct comedi_device *dev = d; */ |
f0922ec5 DS |
274 | return IRQ_HANDLED; |
275 | } | |
276 | ||
277 | /* | |
278 | * "instructions" read/write data in "one-shot" or "software-triggered" | |
279 | * mode. | |
280 | */ | |
0a85b6f0 MT |
281 | static int das16cs_ai_rinsn(struct comedi_device *dev, |
282 | struct comedi_subdevice *s, | |
283 | struct comedi_insn *insn, unsigned int *data) | |
f0922ec5 DS |
284 | { |
285 | int i; | |
286 | int to; | |
287 | int aref; | |
288 | int range; | |
289 | int chan; | |
290 | static int range_bits[] = { 0x800, 0x000, 0x100, 0x200 }; | |
291 | ||
292 | chan = CR_CHAN(insn->chanspec); | |
293 | aref = CR_AREF(insn->chanspec); | |
294 | range = CR_RANGE(insn->chanspec); | |
295 | ||
296 | outw(chan, dev->iobase + 2); | |
297 | ||
298 | devpriv->status1 &= ~0xf320; | |
299 | devpriv->status1 |= (aref == AREF_DIFF) ? 0 : 0x0020; | |
300 | outw(devpriv->status1, dev->iobase + 4); | |
301 | ||
302 | devpriv->status2 &= ~0xff00; | |
303 | devpriv->status2 |= range_bits[range]; | |
304 | outw(devpriv->status2, dev->iobase + 6); | |
305 | ||
306 | for (i = 0; i < insn->n; i++) { | |
307 | outw(0, dev->iobase); | |
308 | ||
309 | #define TIMEOUT 1000 | |
310 | for (to = 0; to < TIMEOUT; to++) { | |
311 | if (inw(dev->iobase + 4) & 0x0080) | |
312 | break; | |
313 | } | |
314 | if (to == TIMEOUT) { | |
315 | printk("cb_das16_cs: ai timeout\n"); | |
316 | return -ETIME; | |
317 | } | |
318 | data[i] = (unsigned short)inw(dev->iobase + 0); | |
319 | } | |
320 | ||
321 | return i; | |
322 | } | |
323 | ||
da91b269 | 324 | static int das16cs_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) |
f0922ec5 DS |
325 | { |
326 | return -EINVAL; | |
327 | } | |
328 | ||
0a85b6f0 MT |
329 | static int das16cs_ai_cmdtest(struct comedi_device *dev, |
330 | struct comedi_subdevice *s, | |
331 | struct comedi_cmd *cmd) | |
f0922ec5 DS |
332 | { |
333 | int err = 0; | |
334 | int tmp; | |
335 | ||
336 | /* cmdtest tests a particular command to see if it is valid. | |
337 | * Using the cmdtest ioctl, a user can create a valid cmd | |
338 | * and then have it executes by the cmd ioctl. | |
339 | * | |
340 | * cmdtest returns 1,2,3,4 or 0, depending on which tests | |
341 | * the command passes. */ | |
342 | ||
343 | /* step 1: make sure trigger sources are trivially valid */ | |
344 | ||
345 | tmp = cmd->start_src; | |
346 | cmd->start_src &= TRIG_NOW; | |
347 | if (!cmd->start_src || tmp != cmd->start_src) | |
348 | err++; | |
349 | ||
350 | tmp = cmd->scan_begin_src; | |
351 | cmd->scan_begin_src &= TRIG_TIMER | TRIG_EXT; | |
352 | if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src) | |
353 | err++; | |
354 | ||
355 | tmp = cmd->convert_src; | |
356 | cmd->convert_src &= TRIG_TIMER | TRIG_EXT; | |
357 | if (!cmd->convert_src || tmp != cmd->convert_src) | |
358 | err++; | |
359 | ||
360 | tmp = cmd->scan_end_src; | |
361 | cmd->scan_end_src &= TRIG_COUNT; | |
362 | if (!cmd->scan_end_src || tmp != cmd->scan_end_src) | |
363 | err++; | |
364 | ||
365 | tmp = cmd->stop_src; | |
366 | cmd->stop_src &= TRIG_COUNT | TRIG_NONE; | |
367 | if (!cmd->stop_src || tmp != cmd->stop_src) | |
368 | err++; | |
369 | ||
370 | if (err) | |
371 | return 1; | |
372 | ||
373 | /* step 2: make sure trigger sources are unique and mutually compatible */ | |
374 | ||
828684f9 | 375 | /* note that mutual compatibility is not an issue here */ |
f0922ec5 | 376 | if (cmd->scan_begin_src != TRIG_TIMER && |
0a85b6f0 | 377 | cmd->scan_begin_src != TRIG_EXT) |
f0922ec5 DS |
378 | err++; |
379 | if (cmd->convert_src != TRIG_TIMER && cmd->convert_src != TRIG_EXT) | |
380 | err++; | |
381 | if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE) | |
382 | err++; | |
383 | ||
384 | if (err) | |
385 | return 2; | |
386 | ||
387 | /* step 3: make sure arguments are trivially compatible */ | |
388 | ||
389 | if (cmd->start_arg != 0) { | |
390 | cmd->start_arg = 0; | |
391 | err++; | |
392 | } | |
393 | #define MAX_SPEED 10000 /* in nanoseconds */ | |
394 | #define MIN_SPEED 1000000000 /* in nanoseconds */ | |
395 | ||
396 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
397 | if (cmd->scan_begin_arg < MAX_SPEED) { | |
398 | cmd->scan_begin_arg = MAX_SPEED; | |
399 | err++; | |
400 | } | |
401 | if (cmd->scan_begin_arg > MIN_SPEED) { | |
402 | cmd->scan_begin_arg = MIN_SPEED; | |
403 | err++; | |
404 | } | |
405 | } else { | |
406 | /* external trigger */ | |
407 | /* should be level/edge, hi/lo specification here */ | |
408 | /* should specify multiple external triggers */ | |
409 | if (cmd->scan_begin_arg > 9) { | |
410 | cmd->scan_begin_arg = 9; | |
411 | err++; | |
412 | } | |
413 | } | |
414 | if (cmd->convert_src == TRIG_TIMER) { | |
415 | if (cmd->convert_arg < MAX_SPEED) { | |
416 | cmd->convert_arg = MAX_SPEED; | |
417 | err++; | |
418 | } | |
419 | if (cmd->convert_arg > MIN_SPEED) { | |
420 | cmd->convert_arg = MIN_SPEED; | |
421 | err++; | |
422 | } | |
423 | } else { | |
424 | /* external trigger */ | |
425 | /* see above */ | |
426 | if (cmd->convert_arg > 9) { | |
427 | cmd->convert_arg = 9; | |
428 | err++; | |
429 | } | |
430 | } | |
431 | ||
432 | if (cmd->scan_end_arg != cmd->chanlist_len) { | |
433 | cmd->scan_end_arg = cmd->chanlist_len; | |
434 | err++; | |
435 | } | |
436 | if (cmd->stop_src == TRIG_COUNT) { | |
437 | if (cmd->stop_arg > 0x00ffffff) { | |
438 | cmd->stop_arg = 0x00ffffff; | |
439 | err++; | |
440 | } | |
441 | } else { | |
442 | /* TRIG_NONE */ | |
443 | if (cmd->stop_arg != 0) { | |
444 | cmd->stop_arg = 0; | |
445 | err++; | |
446 | } | |
447 | } | |
448 | ||
449 | if (err) | |
450 | return 3; | |
451 | ||
452 | /* step 4: fix up any arguments */ | |
453 | ||
454 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
48b1aff5 | 455 | unsigned int div1 = 0, div2 = 0; |
f0922ec5 DS |
456 | |
457 | tmp = cmd->scan_begin_arg; | |
458 | i8253_cascade_ns_to_timer(100, &div1, &div2, | |
0a85b6f0 MT |
459 | &cmd->scan_begin_arg, |
460 | cmd->flags & TRIG_ROUND_MASK); | |
f0922ec5 DS |
461 | if (tmp != cmd->scan_begin_arg) |
462 | err++; | |
463 | } | |
464 | if (cmd->convert_src == TRIG_TIMER) { | |
48b1aff5 | 465 | unsigned int div1 = 0, div2 = 0; |
f0922ec5 DS |
466 | |
467 | tmp = cmd->convert_arg; | |
468 | i8253_cascade_ns_to_timer(100, &div1, &div2, | |
0a85b6f0 MT |
469 | &cmd->scan_begin_arg, |
470 | cmd->flags & TRIG_ROUND_MASK); | |
f0922ec5 DS |
471 | if (tmp != cmd->convert_arg) |
472 | err++; | |
473 | if (cmd->scan_begin_src == TRIG_TIMER && | |
0a85b6f0 MT |
474 | cmd->scan_begin_arg < |
475 | cmd->convert_arg * cmd->scan_end_arg) { | |
f0922ec5 | 476 | cmd->scan_begin_arg = |
0a85b6f0 | 477 | cmd->convert_arg * cmd->scan_end_arg; |
f0922ec5 DS |
478 | err++; |
479 | } | |
480 | } | |
481 | ||
482 | if (err) | |
483 | return 4; | |
484 | ||
485 | return 0; | |
486 | } | |
487 | ||
0a85b6f0 MT |
488 | static int das16cs_ao_winsn(struct comedi_device *dev, |
489 | struct comedi_subdevice *s, | |
490 | struct comedi_insn *insn, unsigned int *data) | |
f0922ec5 DS |
491 | { |
492 | int i; | |
493 | int chan = CR_CHAN(insn->chanspec); | |
494 | unsigned short status1; | |
495 | unsigned short d; | |
496 | int bit; | |
497 | ||
498 | for (i = 0; i < insn->n; i++) { | |
499 | devpriv->ao_readback[chan] = data[i]; | |
500 | d = data[i]; | |
501 | ||
502 | outw(devpriv->status1, dev->iobase + 4); | |
5f74ea14 | 503 | udelay(1); |
f0922ec5 DS |
504 | |
505 | status1 = devpriv->status1 & ~0xf; | |
506 | if (chan) | |
507 | status1 |= 0x0001; | |
508 | else | |
509 | status1 |= 0x0008; | |
510 | ||
511 | /* printk("0x%04x\n",status1);*/ | |
512 | outw(status1, dev->iobase + 4); | |
5f74ea14 | 513 | udelay(1); |
f0922ec5 DS |
514 | |
515 | for (bit = 15; bit >= 0; bit--) { | |
516 | int b = (d >> bit) & 0x1; | |
517 | b <<= 1; | |
518 | /* printk("0x%04x\n",status1 | b | 0x0000);*/ | |
519 | outw(status1 | b | 0x0000, dev->iobase + 4); | |
5f74ea14 | 520 | udelay(1); |
f0922ec5 DS |
521 | /* printk("0x%04x\n",status1 | b | 0x0004);*/ |
522 | outw(status1 | b | 0x0004, dev->iobase + 4); | |
5f74ea14 | 523 | udelay(1); |
f0922ec5 DS |
524 | } |
525 | /* make high both DAC0CS and DAC1CS to load | |
526 | new data and update analog output*/ | |
527 | outw(status1 | 0x9, dev->iobase + 4); | |
528 | } | |
529 | ||
530 | return i; | |
531 | } | |
532 | ||
533 | /* AO subdevices should have a read insn as well as a write insn. | |
534 | * Usually this means copying a value stored in devpriv. */ | |
0a85b6f0 MT |
535 | static int das16cs_ao_rinsn(struct comedi_device *dev, |
536 | struct comedi_subdevice *s, | |
537 | struct comedi_insn *insn, unsigned int *data) | |
f0922ec5 DS |
538 | { |
539 | int i; | |
540 | int chan = CR_CHAN(insn->chanspec); | |
541 | ||
542 | for (i = 0; i < insn->n; i++) | |
543 | data[i] = devpriv->ao_readback[chan]; | |
544 | ||
545 | return i; | |
546 | } | |
547 | ||
548 | /* DIO devices are slightly special. Although it is possible to | |
549 | * implement the insn_read/insn_write interface, it is much more | |
550 | * useful to applications if you implement the insn_bits interface. | |
551 | * This allows packed reading/writing of the DIO channels. The | |
552 | * comedi core can convert between insn_bits and insn_read/write */ | |
0a85b6f0 MT |
553 | static int das16cs_dio_insn_bits(struct comedi_device *dev, |
554 | struct comedi_subdevice *s, | |
555 | struct comedi_insn *insn, unsigned int *data) | |
f0922ec5 DS |
556 | { |
557 | if (insn->n != 2) | |
558 | return -EINVAL; | |
559 | ||
560 | if (data[0]) { | |
561 | s->state &= ~data[0]; | |
562 | s->state |= data[0] & data[1]; | |
563 | ||
564 | outw(s->state, dev->iobase + 16); | |
565 | } | |
566 | ||
567 | /* on return, data[1] contains the value of the digital | |
568 | * input and output lines. */ | |
569 | data[1] = inw(dev->iobase + 16); | |
570 | ||
571 | return 2; | |
572 | } | |
573 | ||
0a85b6f0 MT |
574 | static int das16cs_dio_insn_config(struct comedi_device *dev, |
575 | struct comedi_subdevice *s, | |
576 | struct comedi_insn *insn, unsigned int *data) | |
f0922ec5 DS |
577 | { |
578 | int chan = CR_CHAN(insn->chanspec); | |
579 | int bits; | |
580 | ||
581 | if (chan < 4) | |
582 | bits = 0x0f; | |
583 | else | |
584 | bits = 0xf0; | |
585 | ||
586 | switch (data[0]) { | |
587 | case INSN_CONFIG_DIO_OUTPUT: | |
588 | s->io_bits |= bits; | |
589 | break; | |
590 | case INSN_CONFIG_DIO_INPUT: | |
591 | s->io_bits &= bits; | |
592 | break; | |
593 | case INSN_CONFIG_DIO_QUERY: | |
594 | data[1] = | |
0a85b6f0 | 595 | (s->io_bits & (1 << chan)) ? COMEDI_OUTPUT : COMEDI_INPUT; |
f0922ec5 DS |
596 | return insn->n; |
597 | break; | |
598 | default: | |
599 | return -EINVAL; | |
600 | break; | |
601 | } | |
602 | ||
603 | devpriv->status2 &= ~0x00c0; | |
604 | devpriv->status2 |= (s->io_bits & 0xf0) ? 0x0080 : 0; | |
605 | devpriv->status2 |= (s->io_bits & 0x0f) ? 0x0040 : 0; | |
606 | ||
607 | outw(devpriv->status2, dev->iobase + 6); | |
608 | ||
609 | return insn->n; | |
610 | } | |
611 | ||
0a85b6f0 MT |
612 | static int das16cs_timer_insn_read(struct comedi_device *dev, |
613 | struct comedi_subdevice *s, | |
614 | struct comedi_insn *insn, unsigned int *data) | |
f0922ec5 DS |
615 | { |
616 | return -EINVAL; | |
617 | } | |
618 | ||
0a85b6f0 MT |
619 | static int das16cs_timer_insn_config(struct comedi_device *dev, |
620 | struct comedi_subdevice *s, | |
621 | struct comedi_insn *insn, | |
622 | unsigned int *data) | |
f0922ec5 DS |
623 | { |
624 | return -EINVAL; | |
625 | } | |
626 | ||
627 | /* PCMCIA stuff */ | |
628 | ||
629 | /*====================================================================== | |
630 | ||
631 | The following pcmcia code for the pcm-das08 is adapted from the | |
632 | dummy_cs.c driver of the Linux PCMCIA Card Services package. | |
633 | ||
634 | The initial developer of the original code is David A. Hinds | |
635 | <dahinds@users.sourceforge.net>. Portions created by David A. Hinds | |
636 | are Copyright (C) 1999 David A. Hinds. All Rights Reserved. | |
637 | ||
638 | ======================================================================*/ | |
639 | ||
f0922ec5 DS |
640 | #if defined(CONFIG_PCMCIA) || defined(CONFIG_PCMCIA_MODULE) |
641 | ||
f0922ec5 DS |
642 | static void das16cs_pcmcia_config(struct pcmcia_device *link); |
643 | static void das16cs_pcmcia_release(struct pcmcia_device *link); | |
644 | static int das16cs_pcmcia_suspend(struct pcmcia_device *p_dev); | |
645 | static int das16cs_pcmcia_resume(struct pcmcia_device *p_dev); | |
646 | ||
647 | /* | |
648 | The attach() and detach() entry points are used to create and destroy | |
649 | "instances" of the driver, where each instance represents everything | |
650 | needed to manage one actual PCMCIA card. | |
651 | */ | |
652 | ||
653 | static int das16cs_pcmcia_attach(struct pcmcia_device *); | |
654 | static void das16cs_pcmcia_detach(struct pcmcia_device *); | |
655 | ||
656 | /* | |
657 | You'll also need to prototype all the functions that will actually | |
658 | be used to talk to your device. See 'memory_cs' for a good example | |
659 | of a fully self-sufficient driver; the other drivers rely more or | |
660 | less on other parts of the kernel. | |
661 | */ | |
662 | ||
d2755d51 | 663 | struct local_info_t { |
f0922ec5 | 664 | struct pcmcia_device *link; |
f0922ec5 DS |
665 | int stop; |
666 | struct bus_operations *bus; | |
d2755d51 | 667 | }; |
f0922ec5 DS |
668 | |
669 | /*====================================================================== | |
670 | ||
671 | das16cs_pcmcia_attach() creates an "instance" of the driver, allocating | |
672 | local data structures for one device. The device is registered | |
673 | with Card Services. | |
674 | ||
675 | The dev_link structure is initialized, but we don't actually | |
676 | configure the card at this point -- we wait until we receive a | |
677 | card insertion event. | |
678 | ||
679 | ======================================================================*/ | |
680 | ||
681 | static int das16cs_pcmcia_attach(struct pcmcia_device *link) | |
682 | { | |
d2755d51 | 683 | struct local_info_t *local; |
f0922ec5 | 684 | |
55a19b39 | 685 | dev_dbg(&link->dev, "das16cs_pcmcia_attach()\n"); |
f0922ec5 DS |
686 | |
687 | /* Allocate space for private device-specific data */ | |
d2755d51 | 688 | local = kzalloc(sizeof(struct local_info_t), GFP_KERNEL); |
f0922ec5 DS |
689 | if (!local) |
690 | return -ENOMEM; | |
691 | local->link = link; | |
692 | link->priv = local; | |
693 | ||
f0922ec5 DS |
694 | cur_dev = link; |
695 | ||
696 | das16cs_pcmcia_config(link); | |
697 | ||
698 | return 0; | |
699 | } /* das16cs_pcmcia_attach */ | |
700 | ||
701 | static void das16cs_pcmcia_detach(struct pcmcia_device *link) | |
702 | { | |
55a19b39 | 703 | dev_dbg(&link->dev, "das16cs_pcmcia_detach\n"); |
f0922ec5 | 704 | |
eb8804f6 JMC |
705 | ((struct local_info_t *)link->priv)->stop = 1; |
706 | das16cs_pcmcia_release(link); | |
d2755d51 | 707 | /* This points to the parent struct local_info_t struct */ |
f25bd6bf | 708 | kfree(link->priv); |
f0922ec5 DS |
709 | } /* das16cs_pcmcia_detach */ |
710 | ||
f0922ec5 | 711 | |
55a19b39 | 712 | static int das16cs_pcmcia_config_loop(struct pcmcia_device *p_dev, |
55a19b39 DB |
713 | void *priv_data) |
714 | { | |
00990e7c | 715 | if (p_dev->config_index == 0) |
55a19b39 | 716 | return -EINVAL; |
f0922ec5 | 717 | |
00990e7c | 718 | return pcmcia_request_io(p_dev); |
55a19b39 DB |
719 | } |
720 | ||
721 | static void das16cs_pcmcia_config(struct pcmcia_device *link) | |
722 | { | |
55a19b39 | 723 | int ret; |
f0922ec5 | 724 | |
55a19b39 | 725 | dev_dbg(&link->dev, "das16cs_pcmcia_config\n"); |
c3744138 | 726 | |
00990e7c DB |
727 | /* Do we need to allocate an interrupt? */ |
728 | link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO; | |
729 | ||
55a19b39 DB |
730 | ret = pcmcia_loop_config(link, das16cs_pcmcia_config_loop, NULL); |
731 | if (ret) { | |
732 | dev_warn(&link->dev, "no configuration found\n"); | |
733 | goto failed; | |
f0922ec5 DS |
734 | } |
735 | ||
eb14120f DB |
736 | if (!link->irq) |
737 | goto failed; | |
738 | ||
f0922ec5 DS |
739 | /* |
740 | This actually configures the PCMCIA socket -- setting up | |
741 | the I/O windows and the interrupt mapping, and putting the | |
742 | card and host interface into "Memory and IO" mode. | |
743 | */ | |
1ac71e5a | 744 | ret = pcmcia_enable_device(link); |
55a19b39 DB |
745 | if (ret) |
746 | goto failed; | |
f0922ec5 | 747 | |
f0922ec5 DS |
748 | return; |
749 | ||
55a19b39 | 750 | failed: |
f0922ec5 DS |
751 | das16cs_pcmcia_release(link); |
752 | } /* das16cs_pcmcia_config */ | |
753 | ||
754 | static void das16cs_pcmcia_release(struct pcmcia_device *link) | |
755 | { | |
55a19b39 | 756 | dev_dbg(&link->dev, "das16cs_pcmcia_release\n"); |
f0922ec5 DS |
757 | pcmcia_disable_device(link); |
758 | } /* das16cs_pcmcia_release */ | |
759 | ||
760 | static int das16cs_pcmcia_suspend(struct pcmcia_device *link) | |
761 | { | |
d2755d51 | 762 | struct local_info_t *local = link->priv; |
f0922ec5 DS |
763 | |
764 | /* Mark the device as stopped, to block IO until later */ | |
765 | local->stop = 1; | |
766 | ||
767 | return 0; | |
768 | } /* das16cs_pcmcia_suspend */ | |
769 | ||
770 | static int das16cs_pcmcia_resume(struct pcmcia_device *link) | |
771 | { | |
d2755d51 | 772 | struct local_info_t *local = link->priv; |
f0922ec5 DS |
773 | |
774 | local->stop = 0; | |
775 | return 0; | |
776 | } /* das16cs_pcmcia_resume */ | |
777 | ||
778 | /*====================================================================*/ | |
779 | ||
780 | static struct pcmcia_device_id das16cs_id_table[] = { | |
781 | PCMCIA_DEVICE_MANF_CARD(0x01c5, 0x0039), | |
782 | PCMCIA_DEVICE_MANF_CARD(0x01c5, 0x4009), | |
783 | PCMCIA_DEVICE_NULL | |
784 | }; | |
785 | ||
786 | MODULE_DEVICE_TABLE(pcmcia, das16cs_id_table); | |
6c7f8196 AK |
787 | MODULE_AUTHOR("David A. Schleef <ds@schleef.org>"); |
788 | MODULE_DESCRIPTION("Comedi driver for Computer Boards PC-CARD DAS16/16"); | |
789 | MODULE_LICENSE("GPL"); | |
f0922ec5 DS |
790 | |
791 | struct pcmcia_driver das16cs_driver = { | |
792 | .probe = das16cs_pcmcia_attach, | |
793 | .remove = das16cs_pcmcia_detach, | |
794 | .suspend = das16cs_pcmcia_suspend, | |
795 | .resume = das16cs_pcmcia_resume, | |
796 | .id_table = das16cs_id_table, | |
797 | .owner = THIS_MODULE, | |
2e9b981a | 798 | .name = "cb_das16_cs", |
f0922ec5 DS |
799 | }; |
800 | ||
801 | static int __init init_das16cs_pcmcia_cs(void) | |
802 | { | |
f0922ec5 DS |
803 | pcmcia_register_driver(&das16cs_driver); |
804 | return 0; | |
805 | } | |
806 | ||
807 | static void __exit exit_das16cs_pcmcia_cs(void) | |
808 | { | |
55a19b39 | 809 | pr_debug("das16cs_pcmcia_cs: unloading\n"); |
f0922ec5 DS |
810 | pcmcia_unregister_driver(&das16cs_driver); |
811 | } | |
812 | ||
813 | int __init init_module(void) | |
814 | { | |
815 | int ret; | |
816 | ||
817 | ret = init_das16cs_pcmcia_cs(); | |
818 | if (ret < 0) | |
819 | return ret; | |
820 | ||
821 | return comedi_driver_register(&driver_das16cs); | |
822 | } | |
823 | ||
824 | void __exit cleanup_module(void) | |
825 | { | |
826 | exit_das16cs_pcmcia_cs(); | |
827 | comedi_driver_unregister(&driver_das16cs); | |
828 | } | |
829 | ||
830 | #else | |
7114a280 AT |
831 | static int __init driver_das16cs_init_module(void) |
832 | { | |
833 | return comedi_driver_register(&driver_das16cs); | |
834 | } | |
835 | ||
836 | static void __exit driver_das16cs_cleanup_module(void) | |
837 | { | |
838 | comedi_driver_unregister(&driver_das16cs); | |
839 | } | |
840 | ||
841 | module_init(driver_das16cs_init_module); | |
842 | module_exit(driver_das16cs_cleanup_module); | |
2696fb57 | 843 | #endif /* CONFIG_PCMCIA */ |