ni_mio_cs.c revision 440eed43e2a95bb842488755683716814da10f2b 
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/*
24Driver: ni_mio_cs
25Description: National Instruments DAQCard E series
26Author: ds
27Status: works
28Devices: [National Instruments] DAQCard-AI-16XE-50 (ni_mio_cs),
29  DAQCard-AI-16E-4, DAQCard-6062E, DAQCard-6024E, DAQCard-6036E
30Updated: Thu Oct 23 19:43:17 CDT 2003
31
32See 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
67static 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
174struct 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
197static 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
211static 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
228static int mio_cs_attach(struct comedi_device *dev,
229			 struct comedi_devconfig *it);
230static int mio_cs_detach(struct comedi_device *dev);
231static 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
240static int ni_getboardtype(struct comedi_device *dev,
241			   struct pcmcia_device *link);
242
243/* clean up allocated resources */
244/* called when driver is removed */
245static 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
257static void mio_cs_config(struct pcmcia_device *link);
258static void cs_release(struct pcmcia_device *link);
259static void cs_detach(struct pcmcia_device *);
260
261static struct pcmcia_device *cur_dev = NULL;
262
263static int cs_attach(struct pcmcia_device *link)
264{
265	link->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
266	link->resource[0]->end = 16;
267	link->config_flags |= CONF_ENABLE_IRQ;
268
269	cur_dev = link;
270
271	mio_cs_config(link);
272
273	return 0;
274}
275
276static void cs_release(struct pcmcia_device *link)
277{
278	pcmcia_disable_device(link);
279}
280
281static void cs_detach(struct pcmcia_device *link)
282{
283	DPRINTK("cs_detach(link=%p)\n", link);
284
285	cs_release(link);
286}
287
288static int mio_cs_suspend(struct pcmcia_device *link)
289{
290	DPRINTK("pm suspend\n");
291
292	return 0;
293}
294
295static int mio_cs_resume(struct pcmcia_device *link)
296{
297	DPRINTK("pm resume\n");
298	return 0;
299}
300
301
302static int mio_pcmcia_config_loop(struct pcmcia_device *p_dev,
303				cistpl_cftable_entry_t *cfg,
304				cistpl_cftable_entry_t *dflt,
305				void *priv_data)
306{
307	int base, ret;
308
309	p_dev->resource[0]->end = cfg->io.win[0].len;
310	p_dev->io_lines = cfg->io.flags & CISTPL_IO_LINES_MASK;
311
312	for (base = 0x000; base < 0x400; base += 0x20) {
313		p_dev->resource[0]->start = base;
314		ret = pcmcia_request_io(p_dev);
315		if (!ret)
316			return 0;
317	}
318	return -ENODEV;
319}
320
321
322static void mio_cs_config(struct pcmcia_device *link)
323{
324	int ret;
325
326	DPRINTK("mio_cs_config(link=%p)\n", link);
327
328	ret = pcmcia_loop_config(link, mio_pcmcia_config_loop, NULL);
329	if (ret) {
330		dev_warn(&link->dev, "no configuration found\n");
331		return;
332	}
333
334	if (!link->irq)
335		dev_info(&link->dev, "no IRQ available\n");
336
337	ret = pcmcia_enable_device(link);
338}
339
340static int mio_cs_attach(struct comedi_device *dev, struct comedi_devconfig *it)
341{
342	struct pcmcia_device *link;
343	unsigned int irq;
344	int ret;
345
346	DPRINTK("mio_cs_attach(dev=%p,it=%p)\n", dev, it);
347
348	link = cur_dev;		/* XXX hack */
349	if (!link)
350		return -EIO;
351
352	dev->driver = &driver_ni_mio_cs;
353	dev->iobase = link->resource[0]->start;
354
355	irq = link->irq;
356
357	printk("comedi%d: %s: DAQCard: io 0x%04lx, irq %u, ",
358	       dev->minor, dev->driver->driver_name, dev->iobase, irq);
359
360#if 0
361	{
362		int i;
363
364		printk(" board fingerprint:");
365		for (i = 0; i < 32; i += 2) {
366			printk(" %04x %02x", inw(dev->iobase + i),
367			       inb(dev->iobase + i + 1));
368		}
369		printk("\n");
370		printk(" board fingerprint (windowed):");
371		for (i = 0; i < 10; i++)
372			printk(" 0x%04x", win_in(i));
373		printk("\n");
374	}
375#endif
376
377	dev->board_ptr = ni_boards + ni_getboardtype(dev, link);
378
379	printk(" %s", boardtype.name);
380	dev->board_name = boardtype.name;
381
382	ret = request_irq(irq, ni_E_interrupt, NI_E_IRQ_FLAGS,
383			  "ni_mio_cs", dev);
384	if (ret < 0) {
385		printk(" irq not available\n");
386		return -EINVAL;
387	}
388	dev->irq = irq;
389
390	/* allocate private area */
391	ret = ni_alloc_private(dev);
392	if (ret < 0)
393		return ret;
394
395	devpriv->stc_writew = &mio_cs_win_out;
396	devpriv->stc_readw = &mio_cs_win_in;
397	devpriv->stc_writel = &win_out2;
398	devpriv->stc_readl = &win_in2;
399
400	ret = ni_E_init(dev, it);
401
402	if (ret < 0)
403		return ret;
404
405	return 0;
406}
407
408static int ni_getboardtype(struct comedi_device *dev,
409			   struct pcmcia_device *link)
410{
411	int i;
412
413	for (i = 0; i < n_ni_boards; i++) {
414		if (ni_boards[i].device_id == link->card_id)
415			return i;
416	}
417
418	printk("unknown board 0x%04x -- pretend it is a ", link->card_id);
419
420	return 0;
421}
422
423#ifdef MODULE
424
425static struct pcmcia_device_id ni_mio_cs_ids[] = {
426	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x010d),	/* DAQCard-ai-16xe-50 */
427	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x010c),	/* DAQCard-ai-16e-4 */
428	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x02c4),	/* DAQCard-6062E */
429	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x075e),	/* DAQCard-6024E */
430	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x0245),	/* DAQCard-6036E */
431	PCMCIA_DEVICE_NULL
432};
433
434MODULE_DEVICE_TABLE(pcmcia, ni_mio_cs_ids);
435MODULE_AUTHOR("David A. Schleef <ds@schleef.org>");
436MODULE_DESCRIPTION("Comedi driver for National Instruments DAQCard E series");
437MODULE_LICENSE("GPL");
438
439struct pcmcia_driver ni_mio_cs_driver = {
440	.probe = &cs_attach,
441	.remove = &cs_detach,
442	.suspend = &mio_cs_suspend,
443	.resume = &mio_cs_resume,
444	.id_table = ni_mio_cs_ids,
445	.owner = THIS_MODULE,
446	.drv = {
447		.name = "ni_mio_cs",
448		},
449};
450
451int init_module(void)
452{
453	pcmcia_register_driver(&ni_mio_cs_driver);
454	comedi_driver_register(&driver_ni_mio_cs);
455	return 0;
456}
457
458void cleanup_module(void)
459{
460	pcmcia_unregister_driver(&ni_mio_cs_driver);
461#if 0
462	while (cur_dev != NULL)
463		cs_detach(cur_dev->handle);
464#endif
465	comedi_driver_unregister(&driver_ni_mio_cs);
466}
467#endif
468