ni_mio_cs.c revision 90abdc3b973229bae98dd96649d9f7106cc177a4 
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/cs.h>
52#include <pcmcia/cistpl.h>
53#include <pcmcia/ds.h>
54
55#undef DEBUG
56
57#define ATMIO 1
58#undef PCIMIO
59
60/*
61 *  AT specific setup
62 */
63
64#define NI_SIZE 0x20
65
66#define MAX_N_CALDACS 32
67
68static const struct ni_board_struct ni_boards[] = {
69	{.device_id = 0x010d,
70	 .name = "DAQCard-ai-16xe-50",
71	 .n_adchan = 16,
72	 .adbits = 16,
73	 .ai_fifo_depth = 1024,
74	 .alwaysdither = 0,
75	 .gainlkup = ai_gain_8,
76	 .ai_speed = 5000,
77	 .n_aochan = 0,
78	 .aobits = 0,
79	 .ao_fifo_depth = 0,
80	 .ao_unipolar = 0,
81	 .num_p0_dio_channels = 8,
82	 .has_8255 = 0,
83	 .caldac = {dac8800, dac8043},
84	 },
85	{.device_id = 0x010c,
86	 .name = "DAQCard-ai-16e-4",
87	 .n_adchan = 16,
88	 .adbits = 12,
89	 .ai_fifo_depth = 1024,
90	 .alwaysdither = 0,
91	 .gainlkup = ai_gain_16,
92	 .ai_speed = 4000,
93	 .n_aochan = 0,
94	 .aobits = 0,
95	 .ao_fifo_depth = 0,
96	 .ao_unipolar = 0,
97	 .num_p0_dio_channels = 8,
98	 .has_8255 = 0,
99	 .caldac = {mb88341},	/* verified */
100	 },
101	{.device_id = 0x02c4,
102	 .name = "DAQCard-6062E",
103	 .n_adchan = 16,
104	 .adbits = 12,
105	 .ai_fifo_depth = 8192,
106	 .alwaysdither = 0,
107	 .gainlkup = ai_gain_16,
108	 .ai_speed = 2000,
109	 .n_aochan = 2,
110	 .aobits = 12,
111	 .ao_fifo_depth = 2048,
112	 .ao_range_table = &range_bipolar10,
113	 .ao_unipolar = 0,
114	 .ao_speed = 1176,
115	 .num_p0_dio_channels = 8,
116	 .has_8255 = 0,
117	 .caldac = {ad8804_debug},	/* verified */
118	 },
119	{.device_id = 0x075e,
120	 .name = "DAQCard-6024E",	/* specs incorrect! */
121	 .n_adchan = 16,
122	 .adbits = 12,
123	 .ai_fifo_depth = 1024,
124	 .alwaysdither = 0,
125	 .gainlkup = ai_gain_4,
126	 .ai_speed = 5000,
127	 .n_aochan = 2,
128	 .aobits = 12,
129	 .ao_fifo_depth = 0,
130	 .ao_range_table = &range_bipolar10,
131	 .ao_unipolar = 0,
132	 .ao_speed = 1000000,
133	 .num_p0_dio_channels = 8,
134	 .has_8255 = 0,
135	 .caldac = {ad8804_debug},
136	 },
137	{.device_id = 0x0245,
138	 .name = "DAQCard-6036E",	/* specs incorrect! */
139	 .n_adchan = 16,
140	 .adbits = 16,
141	 .ai_fifo_depth = 1024,
142	 .alwaysdither = 1,
143	 .gainlkup = ai_gain_4,
144	 .ai_speed = 5000,
145	 .n_aochan = 2,
146	 .aobits = 16,
147	 .ao_fifo_depth = 0,
148	 .ao_range_table = &range_bipolar10,
149	 .ao_unipolar = 0,
150	 .ao_speed = 1000000,
151	 .num_p0_dio_channels = 8,
152	 .has_8255 = 0,
153	 .caldac = {ad8804_debug},
154	 },
155#if 0
156	{.device_id = 0x0000,	/* unknown */
157	 .name = "DAQCard-6715",
158	 .n_adchan = 0,
159	 .n_aochan = 8,
160	 .aobits = 12,
161	 .ao_671x = 8192,
162	 .num_p0_dio_channels = 8,
163	 .caldac = {mb88341, mb88341},
164	 },
165#endif
166	/* N.B. Update ni_mio_cs_ids[] when entries added above. */
167};
168
169#define interrupt_pin(a)	0
170
171#define IRQ_POLARITY 1
172
173#define NI_E_IRQ_FLAGS		IRQF_SHARED
174
175struct ni_private {
176
177	struct pcmcia_device *link;
178
179 NI_PRIVATE_COMMON};
180
181#define devpriv ((struct ni_private *)dev->private)
182
183/* How we access registers */
184
185#define ni_writel(a, b)		(outl((a), (b)+dev->iobase))
186#define ni_readl(a)		(inl((a)+dev->iobase))
187#define ni_writew(a, b)		(outw((a), (b)+dev->iobase))
188#define ni_readw(a)		(inw((a)+dev->iobase))
189#define ni_writeb(a, b)		(outb((a), (b)+dev->iobase))
190#define ni_readb(a)		(inb((a)+dev->iobase))
191
192/* How we access windowed registers */
193
194/* We automatically take advantage of STC registers that can be
195 * read/written directly in the I/O space of the board.  The
196 * DAQCard devices map the low 8 STC registers to iobase+addr*2. */
197
198static void mio_cs_win_out(struct comedi_device *dev, uint16_t data, int addr)
199{
200	unsigned long flags;
201
202	spin_lock_irqsave(&devpriv->window_lock, flags);
203	if (addr < 8) {
204		ni_writew(data, addr * 2);
205	} else {
206		ni_writew(addr, Window_Address);
207		ni_writew(data, Window_Data);
208	}
209	spin_unlock_irqrestore(&devpriv->window_lock, flags);
210}
211
212static uint16_t mio_cs_win_in(struct comedi_device *dev, int addr)
213{
214	unsigned long flags;
215	uint16_t ret;
216
217	spin_lock_irqsave(&devpriv->window_lock, flags);
218	if (addr < 8) {
219		ret = ni_readw(addr * 2);
220	} else {
221		ni_writew(addr, Window_Address);
222		ret = ni_readw(Window_Data);
223	}
224	spin_unlock_irqrestore(&devpriv->window_lock, flags);
225
226	return ret;
227}
228
229static int mio_cs_attach(struct comedi_device *dev,
230			 struct comedi_devconfig *it);
231static int mio_cs_detach(struct comedi_device *dev);
232static struct comedi_driver driver_ni_mio_cs = {
233	.driver_name = "ni_mio_cs",
234	.module = THIS_MODULE,
235	.attach = mio_cs_attach,
236	.detach = mio_cs_detach,
237};
238
239#include "ni_mio_common.c"
240
241static int ni_getboardtype(struct comedi_device *dev,
242			   struct pcmcia_device *link);
243
244/* clean up allocated resources */
245/* called when driver is removed */
246static int mio_cs_detach(struct comedi_device *dev)
247{
248	mio_common_detach(dev);
249
250	/* PCMCIA layer frees the IO region */
251
252	if (dev->irq)
253		free_irq(dev->irq, dev);
254
255	return 0;
256}
257
258static void mio_cs_config(struct pcmcia_device *link);
259static void cs_release(struct pcmcia_device *link);
260static void cs_detach(struct pcmcia_device *);
261
262static struct pcmcia_device *cur_dev = NULL;
263static const dev_info_t dev_info = "ni_mio_cs";
264
265static int cs_attach(struct pcmcia_device *link)
266{
267	link->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
268	link->resource[0]->end = 16;
269	link->conf.Attributes = CONF_ENABLE_IRQ;
270	link->conf.IntType = INT_MEMORY_AND_IO;
271
272	cur_dev = link;
273
274	mio_cs_config(link);
275
276	return 0;
277}
278
279static void cs_release(struct pcmcia_device *link)
280{
281	pcmcia_disable_device(link);
282}
283
284static void cs_detach(struct pcmcia_device *link)
285{
286	DPRINTK("cs_detach(link=%p)\n", link);
287
288	cs_release(link);
289}
290
291static int mio_cs_suspend(struct pcmcia_device *link)
292{
293	DPRINTK("pm suspend\n");
294
295	return 0;
296}
297
298static int mio_cs_resume(struct pcmcia_device *link)
299{
300	DPRINTK("pm resume\n");
301	return 0;
302}
303
304
305static int mio_pcmcia_config_loop(struct pcmcia_device *p_dev,
306				cistpl_cftable_entry_t *cfg,
307				cistpl_cftable_entry_t *dflt,
308				unsigned int vcc,
309				void *priv_data)
310{
311	int base, ret;
312
313	p_dev->resource[0]->end = cfg->io.win[0].len;
314	p_dev->io_lines = cfg->io.flags & CISTPL_IO_LINES_MASK;
315
316	for (base = 0x000; base < 0x400; base += 0x20) {
317		p_dev->resource[0]->start = base;
318		ret = pcmcia_request_io(p_dev);
319		if (!ret)
320			return 0;
321	}
322	return -ENODEV;
323}
324
325
326static void mio_cs_config(struct pcmcia_device *link)
327{
328	int ret;
329
330	DPRINTK("mio_cs_config(link=%p)\n", link);
331
332	ret = pcmcia_loop_config(link, mio_pcmcia_config_loop, NULL);
333	if (ret) {
334		dev_warn(&link->dev, "no configuration found\n");
335		return;
336	}
337
338	if (!link->irq)
339		dev_info(&link->dev, "no IRQ available\n");
340
341	ret = pcmcia_request_configuration(link, &link->conf);
342}
343
344static int mio_cs_attach(struct comedi_device *dev, struct comedi_devconfig *it)
345{
346	struct pcmcia_device *link;
347	unsigned int irq;
348	int ret;
349
350	DPRINTK("mio_cs_attach(dev=%p,it=%p)\n", dev, it);
351
352	link = cur_dev;		/* XXX hack */
353	if (!link)
354		return -EIO;
355
356	dev->driver = &driver_ni_mio_cs;
357	dev->iobase = link->resource[0]->start;
358
359	irq = link->irq;
360
361	printk("comedi%d: %s: DAQCard: io 0x%04lx, irq %u, ",
362	       dev->minor, dev->driver->driver_name, dev->iobase, irq);
363
364#if 0
365	{
366		int i;
367
368		printk(" board fingerprint:");
369		for (i = 0; i < 32; i += 2) {
370			printk(" %04x %02x", inw(dev->iobase + i),
371			       inb(dev->iobase + i + 1));
372		}
373		printk("\n");
374		printk(" board fingerprint (windowed):");
375		for (i = 0; i < 10; i++)
376			printk(" 0x%04x", win_in(i));
377		printk("\n");
378	}
379#endif
380
381	dev->board_ptr = ni_boards + ni_getboardtype(dev, link);
382
383	printk(" %s", boardtype.name);
384	dev->board_name = boardtype.name;
385
386	ret = request_irq(irq, ni_E_interrupt, NI_E_IRQ_FLAGS,
387			  "ni_mio_cs", dev);
388	if (ret < 0) {
389		printk(" irq not available\n");
390		return -EINVAL;
391	}
392	dev->irq = irq;
393
394	/* allocate private area */
395	ret = ni_alloc_private(dev);
396	if (ret < 0)
397		return ret;
398
399	devpriv->stc_writew = &mio_cs_win_out;
400	devpriv->stc_readw = &mio_cs_win_in;
401	devpriv->stc_writel = &win_out2;
402	devpriv->stc_readl = &win_in2;
403
404	ret = ni_E_init(dev, it);
405
406	if (ret < 0)
407		return ret;
408
409	return 0;
410}
411
412static int ni_getboardtype(struct comedi_device *dev,
413			   struct pcmcia_device *link)
414{
415	int i;
416
417	for (i = 0; i < n_ni_boards; i++) {
418		if (ni_boards[i].device_id == link->card_id)
419			return i;
420	}
421
422	printk("unknown board 0x%04x -- pretend it is a ", link->card_id);
423
424	return 0;
425}
426
427#ifdef MODULE
428
429static struct pcmcia_device_id ni_mio_cs_ids[] = {
430	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x010d),	/* DAQCard-ai-16xe-50 */
431	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x010c),	/* DAQCard-ai-16e-4 */
432	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x02c4),	/* DAQCard-6062E */
433	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x075e),	/* DAQCard-6024E */
434	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x0245),	/* DAQCard-6036E */
435	PCMCIA_DEVICE_NULL
436};
437
438MODULE_DEVICE_TABLE(pcmcia, ni_mio_cs_ids);
439MODULE_AUTHOR("David A. Schleef <ds@schleef.org>");
440MODULE_DESCRIPTION("Comedi driver for National Instruments DAQCard E series");
441MODULE_LICENSE("GPL");
442
443struct pcmcia_driver ni_mio_cs_driver = {
444	.probe = &cs_attach,
445	.remove = &cs_detach,
446	.suspend = &mio_cs_suspend,
447	.resume = &mio_cs_resume,
448	.id_table = ni_mio_cs_ids,
449	.owner = THIS_MODULE,
450	.drv = {
451		.name = dev_info,
452		},
453};
454
455int init_module(void)
456{
457	pcmcia_register_driver(&ni_mio_cs_driver);
458	comedi_driver_register(&driver_ni_mio_cs);
459	return 0;
460}
461
462void cleanup_module(void)
463{
464	pcmcia_unregister_driver(&ni_mio_cs_driver);
465#if 0
466	while (cur_dev != NULL)
467		cs_detach(cur_dev->handle);
468#endif
469	comedi_driver_unregister(&driver_ni_mio_cs);
470}
471#endif
472