1 /*
2 comedi/drivers/ni_mio_cs.c
3 Hardware driver for NI PCMCIA MIO E series cards
4
5 COMEDI - Linux Control and Measurement Device Interface
6 Copyright (C) 1997-2000 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: ni_mio_cs
25 Description: National Instruments DAQCard E series
26 Author: ds
27 Status: works
28 Devices: [National Instruments] DAQCard-AI-16XE-50 (ni_mio_cs),
29 DAQCard-AI-16E-4, DAQCard-6062E, DAQCard-6024E, DAQCard-6036E
30 Updated: Thu Oct 23 19:43:17 CDT 2003
31
32 See the notes in the ni_atmio.o driver.
33 */
34 /*
35 The real guts of the driver is in ni_mio_common.c, which is
36 included by all the E series drivers.
37
38 References for specifications:
39
40 341080a.pdf DAQCard E Series Register Level Programmer Manual
41
42 */
43
44 #include "../comedidev.h"
45
46 #include <linux/delay.h>
47
48 #include "ni_stc.h"
49 #include "8255.h"
50
51 #include <pcmcia/cistpl.h>
52 #include <pcmcia/ds.h>
53
54 #undef DEBUG
55
56 #define ATMIO 1
57 #undef PCIMIO
58
59 /*
60 * AT specific setup
61 */
62
63 #define NI_SIZE 0x20
64
65 #define MAX_N_CALDACS 32
66
67 static const struct ni_board_struct ni_boards[] = {
68 {.device_id = 0x010d,
69 .name = "DAQCard-ai-16xe-50",
70 .n_adchan = 16,
71 .adbits = 16,
72 .ai_fifo_depth = 1024,
73 .alwaysdither = 0,
74 .gainlkup = ai_gain_8,
75 .ai_speed = 5000,
76 .n_aochan = 0,
77 .aobits = 0,
78 .ao_fifo_depth = 0,
79 .ao_unipolar = 0,
80 .num_p0_dio_channels = 8,
81 .has_8255 = 0,
82 .caldac = {dac8800, dac8043},
83 },
84 {.device_id = 0x010c,
85 .name = "DAQCard-ai-16e-4",
86 .n_adchan = 16,
87 .adbits = 12,
88 .ai_fifo_depth = 1024,
89 .alwaysdither = 0,
90 .gainlkup = ai_gain_16,
91 .ai_speed = 4000,
92 .n_aochan = 0,
93 .aobits = 0,
94 .ao_fifo_depth = 0,
95 .ao_unipolar = 0,
96 .num_p0_dio_channels = 8,
97 .has_8255 = 0,
98 .caldac = {mb88341}, /* verified */
99 },
100 {.device_id = 0x02c4,
101 .name = "DAQCard-6062E",
102 .n_adchan = 16,
103 .adbits = 12,
104 .ai_fifo_depth = 8192,
105 .alwaysdither = 0,
106 .gainlkup = ai_gain_16,
107 .ai_speed = 2000,
108 .n_aochan = 2,
109 .aobits = 12,
110 .ao_fifo_depth = 2048,
111 .ao_range_table = &range_bipolar10,
112 .ao_unipolar = 0,
113 .ao_speed = 1176,
114 .num_p0_dio_channels = 8,
115 .has_8255 = 0,
116 .caldac = {ad8804_debug}, /* verified */
117 },
118 {.device_id = 0x075e,
119 .name = "DAQCard-6024E", /* specs incorrect! */
120 .n_adchan = 16,
121 .adbits = 12,
122 .ai_fifo_depth = 1024,
123 .alwaysdither = 0,
124 .gainlkup = ai_gain_4,
125 .ai_speed = 5000,
126 .n_aochan = 2,
127 .aobits = 12,
128 .ao_fifo_depth = 0,
129 .ao_range_table = &range_bipolar10,
130 .ao_unipolar = 0,
131 .ao_speed = 1000000,
132 .num_p0_dio_channels = 8,
133 .has_8255 = 0,
134 .caldac = {ad8804_debug},
135 },
136 {.device_id = 0x0245,
137 .name = "DAQCard-6036E", /* specs incorrect! */
138 .n_adchan = 16,
139 .adbits = 16,
140 .ai_fifo_depth = 1024,
141 .alwaysdither = 1,
142 .gainlkup = ai_gain_4,
143 .ai_speed = 5000,
144 .n_aochan = 2,
145 .aobits = 16,
146 .ao_fifo_depth = 0,
147 .ao_range_table = &range_bipolar10,
148 .ao_unipolar = 0,
149 .ao_speed = 1000000,
150 .num_p0_dio_channels = 8,
151 .has_8255 = 0,
152 .caldac = {ad8804_debug},
153 },
154 #if 0
155 {.device_id = 0x0000, /* unknown */
156 .name = "DAQCard-6715",
157 .n_adchan = 0,
158 .n_aochan = 8,
159 .aobits = 12,
160 .ao_671x = 8192,
161 .num_p0_dio_channels = 8,
162 .caldac = {mb88341, mb88341},
163 },
164 #endif
165 /* N.B. Update ni_mio_cs_ids[] when entries added above. */
166 };
167
168 #define interrupt_pin(a) 0
169
170 #define IRQ_POLARITY 1
171
172 #define NI_E_IRQ_FLAGS IRQF_SHARED
173
174 struct ni_private {
175
176 struct pcmcia_device *link;
177
178 NI_PRIVATE_COMMON};
179
180 #define devpriv ((struct ni_private *)dev->private)
181
182 /* How we access registers */
183
184 #define ni_writel(a, b) (outl((a), (b)+dev->iobase))
185 #define ni_readl(a) (inl((a)+dev->iobase))
186 #define ni_writew(a, b) (outw((a), (b)+dev->iobase))
187 #define ni_readw(a) (inw((a)+dev->iobase))
188 #define ni_writeb(a, b) (outb((a), (b)+dev->iobase))
189 #define ni_readb(a) (inb((a)+dev->iobase))
190
191 /* How we access windowed registers */
192
193 /* We automatically take advantage of STC registers that can be
194 * read/written directly in the I/O space of the board. The
195 * DAQCard devices map the low 8 STC registers to iobase+addr*2. */
196
mio_cs_win_out(struct comedi_device * dev,uint16_t data,int addr)197 static void mio_cs_win_out(struct comedi_device *dev, uint16_t data, int addr)
198 {
199 unsigned long flags;
200
201 spin_lock_irqsave(&devpriv->window_lock, flags);
202 if (addr < 8) {
203 ni_writew(data, addr * 2);
204 } else {
205 ni_writew(addr, Window_Address);
206 ni_writew(data, Window_Data);
207 }
208 spin_unlock_irqrestore(&devpriv->window_lock, flags);
209 }
210
mio_cs_win_in(struct comedi_device * dev,int addr)211 static uint16_t mio_cs_win_in(struct comedi_device *dev, int addr)
212 {
213 unsigned long flags;
214 uint16_t ret;
215
216 spin_lock_irqsave(&devpriv->window_lock, flags);
217 if (addr < 8) {
218 ret = ni_readw(addr * 2);
219 } else {
220 ni_writew(addr, Window_Address);
221 ret = ni_readw(Window_Data);
222 }
223 spin_unlock_irqrestore(&devpriv->window_lock, flags);
224
225 return ret;
226 }
227
228 static int mio_cs_attach(struct comedi_device *dev,
229 struct comedi_devconfig *it);
230 static int mio_cs_detach(struct comedi_device *dev);
231 static struct comedi_driver driver_ni_mio_cs = {
232 .driver_name = "ni_mio_cs",
233 .module = THIS_MODULE,
234 .attach = mio_cs_attach,
235 .detach = mio_cs_detach,
236 };
237
238 #include "ni_mio_common.c"
239
240 static int ni_getboardtype(struct comedi_device *dev,
241 struct pcmcia_device *link);
242
243 /* clean up allocated resources */
244 /* called when driver is removed */
mio_cs_detach(struct comedi_device * dev)245 static int mio_cs_detach(struct comedi_device *dev)
246 {
247 mio_common_detach(dev);
248
249 /* PCMCIA layer frees the IO region */
250
251 if (dev->irq)
252 free_irq(dev->irq, dev);
253
254 return 0;
255 }
256
257 static void mio_cs_config(struct pcmcia_device *link);
258 static void cs_release(struct pcmcia_device *link);
259 static void cs_detach(struct pcmcia_device *);
260
261 static struct pcmcia_device *cur_dev = NULL;
262
cs_attach(struct pcmcia_device * link)263 static int cs_attach(struct pcmcia_device *link)
264 {
265 cur_dev = link;
266
267 mio_cs_config(link);
268
269 return 0;
270 }
271
cs_release(struct pcmcia_device * link)272 static void cs_release(struct pcmcia_device *link)
273 {
274 pcmcia_disable_device(link);
275 }
276
cs_detach(struct pcmcia_device * link)277 static void cs_detach(struct pcmcia_device *link)
278 {
279 DPRINTK("cs_detach(link=%p)\n", link);
280
281 cs_release(link);
282 }
283
mio_cs_suspend(struct pcmcia_device * link)284 static int mio_cs_suspend(struct pcmcia_device *link)
285 {
286 DPRINTK("pm suspend\n");
287
288 return 0;
289 }
290
mio_cs_resume(struct pcmcia_device * link)291 static int mio_cs_resume(struct pcmcia_device *link)
292 {
293 DPRINTK("pm resume\n");
294 return 0;
295 }
296
297
mio_pcmcia_config_loop(struct pcmcia_device * p_dev,void * priv_data)298 static int mio_pcmcia_config_loop(struct pcmcia_device *p_dev, void *priv_data)
299 {
300 int base, ret;
301
302 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
303 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
304
305 for (base = 0x000; base < 0x400; base += 0x20) {
306 p_dev->resource[0]->start = base;
307 ret = pcmcia_request_io(p_dev);
308 if (!ret)
309 return 0;
310 }
311 return -ENODEV;
312 }
313
314
mio_cs_config(struct pcmcia_device * link)315 static void mio_cs_config(struct pcmcia_device *link)
316 {
317 int ret;
318
319 DPRINTK("mio_cs_config(link=%p)\n", link);
320 link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
321
322 ret = pcmcia_loop_config(link, mio_pcmcia_config_loop, NULL);
323 if (ret) {
324 dev_warn(&link->dev, "no configuration found\n");
325 return;
326 }
327
328 if (!link->irq)
329 dev_info(&link->dev, "no IRQ available\n");
330
331 ret = pcmcia_enable_device(link);
332 }
333
mio_cs_attach(struct comedi_device * dev,struct comedi_devconfig * it)334 static int mio_cs_attach(struct comedi_device *dev, struct comedi_devconfig *it)
335 {
336 struct pcmcia_device *link;
337 unsigned int irq;
338 int ret;
339
340 DPRINTK("mio_cs_attach(dev=%p,it=%p)\n", dev, it);
341
342 link = cur_dev; /* XXX hack */
343 if (!link)
344 return -EIO;
345
346 dev->driver = &driver_ni_mio_cs;
347 dev->iobase = link->resource[0]->start;
348
349 irq = link->irq;
350
351 printk("comedi%d: %s: DAQCard: io 0x%04lx, irq %u, ",
352 dev->minor, dev->driver->driver_name, dev->iobase, irq);
353
354 #if 0
355 {
356 int i;
357
358 printk(" board fingerprint:");
359 for (i = 0; i < 32; i += 2) {
360 printk(" %04x %02x", inw(dev->iobase + i),
361 inb(dev->iobase + i + 1));
362 }
363 printk("\n");
364 printk(" board fingerprint (windowed):");
365 for (i = 0; i < 10; i++)
366 printk(" 0x%04x", win_in(i));
367 printk("\n");
368 }
369 #endif
370
371 dev->board_ptr = ni_boards + ni_getboardtype(dev, link);
372
373 printk(" %s", boardtype.name);
374 dev->board_name = boardtype.name;
375
376 ret = request_irq(irq, ni_E_interrupt, NI_E_IRQ_FLAGS,
377 "ni_mio_cs", dev);
378 if (ret < 0) {
379 printk(" irq not available\n");
380 return -EINVAL;
381 }
382 dev->irq = irq;
383
384 /* allocate private area */
385 ret = ni_alloc_private(dev);
386 if (ret < 0)
387 return ret;
388
389 devpriv->stc_writew = &mio_cs_win_out;
390 devpriv->stc_readw = &mio_cs_win_in;
391 devpriv->stc_writel = &win_out2;
392 devpriv->stc_readl = &win_in2;
393
394 ret = ni_E_init(dev, it);
395
396 if (ret < 0)
397 return ret;
398
399 return 0;
400 }
401
ni_getboardtype(struct comedi_device * dev,struct pcmcia_device * link)402 static int ni_getboardtype(struct comedi_device *dev,
403 struct pcmcia_device *link)
404 {
405 int i;
406
407 for (i = 0; i < n_ni_boards; i++) {
408 if (ni_boards[i].device_id == link->card_id)
409 return i;
410 }
411
412 printk("unknown board 0x%04x -- pretend it is a ", link->card_id);
413
414 return 0;
415 }
416
417 #ifdef MODULE
418
419 static const struct pcmcia_device_id ni_mio_cs_ids[] = {
420 PCMCIA_DEVICE_MANF_CARD(0x010b, 0x010d), /* DAQCard-ai-16xe-50 */
421 PCMCIA_DEVICE_MANF_CARD(0x010b, 0x010c), /* DAQCard-ai-16e-4 */
422 PCMCIA_DEVICE_MANF_CARD(0x010b, 0x02c4), /* DAQCard-6062E */
423 PCMCIA_DEVICE_MANF_CARD(0x010b, 0x075e), /* DAQCard-6024E */
424 PCMCIA_DEVICE_MANF_CARD(0x010b, 0x0245), /* DAQCard-6036E */
425 PCMCIA_DEVICE_NULL
426 };
427
428 MODULE_DEVICE_TABLE(pcmcia, ni_mio_cs_ids);
429 MODULE_AUTHOR("David A. Schleef <ds@schleef.org>");
430 MODULE_DESCRIPTION("Comedi driver for National Instruments DAQCard E series");
431 MODULE_LICENSE("GPL");
432
433 struct pcmcia_driver ni_mio_cs_driver = {
434 .probe = &cs_attach,
435 .remove = &cs_detach,
436 .suspend = &mio_cs_suspend,
437 .resume = &mio_cs_resume,
438 .id_table = ni_mio_cs_ids,
439 .owner = THIS_MODULE,
440 .name = "ni_mio_cs",
441 };
442
init_module(void)443 int init_module(void)
444 {
445 pcmcia_register_driver(&ni_mio_cs_driver);
446 comedi_driver_register(&driver_ni_mio_cs);
447 return 0;
448 }
449
cleanup_module(void)450 void cleanup_module(void)
451 {
452 pcmcia_unregister_driver(&ni_mio_cs_driver);
453 #if 0
454 while (cur_dev != NULL)
455 cs_detach(cur_dev->handle);
456 #endif
457 comedi_driver_unregister(&driver_ni_mio_cs);
458 }
459 #endif
460