ni_mio_cs.c revision 37979e1546a790c44adbc7f27a85569944480ebc 
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;
263
264static int cs_attach(struct pcmcia_device *link)
265{
266	link->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
267	link->resource[0]->end = 16;
268	link->conf.Attributes = CONF_ENABLE_IRQ;
269
270	cur_dev = link;
271
272	mio_cs_config(link);
273
274	return 0;
275}
276
277static void cs_release(struct pcmcia_device *link)
278{
279	pcmcia_disable_device(link);
280}
281
282static void cs_detach(struct pcmcia_device *link)
283{
284	DPRINTK("cs_detach(link=%p)\n", link);
285
286	cs_release(link);
287}
288
289static int mio_cs_suspend(struct pcmcia_device *link)
290{
291	DPRINTK("pm suspend\n");
292
293	return 0;
294}
295
296static int mio_cs_resume(struct pcmcia_device *link)
297{
298	DPRINTK("pm resume\n");
299	return 0;
300}
301
302
303static int mio_pcmcia_config_loop(struct pcmcia_device *p_dev,
304				cistpl_cftable_entry_t *cfg,
305				cistpl_cftable_entry_t *dflt,
306				unsigned int vcc,
307				void *priv_data)
308{
309	int base, ret;
310
311	p_dev->resource[0]->end = cfg->io.win[0].len;
312	p_dev->io_lines = cfg->io.flags & CISTPL_IO_LINES_MASK;
313
314	for (base = 0x000; base < 0x400; base += 0x20) {
315		p_dev->resource[0]->start = base;
316		ret = pcmcia_request_io(p_dev);
317		if (!ret)
318			return 0;
319	}
320	return -ENODEV;
321}
322
323
324static void mio_cs_config(struct pcmcia_device *link)
325{
326	int ret;
327
328	DPRINTK("mio_cs_config(link=%p)\n", link);
329
330	ret = pcmcia_loop_config(link, mio_pcmcia_config_loop, NULL);
331	if (ret) {
332		dev_warn(&link->dev, "no configuration found\n");
333		return;
334	}
335
336	if (!link->irq)
337		dev_info(&link->dev, "no IRQ available\n");
338
339	ret = pcmcia_request_configuration(link, &link->conf);
340}
341
342static int mio_cs_attach(struct comedi_device *dev, struct comedi_devconfig *it)
343{
344	struct pcmcia_device *link;
345	unsigned int irq;
346	int ret;
347
348	DPRINTK("mio_cs_attach(dev=%p,it=%p)\n", dev, it);
349
350	link = cur_dev;		/* XXX hack */
351	if (!link)
352		return -EIO;
353
354	dev->driver = &driver_ni_mio_cs;
355	dev->iobase = link->resource[0]->start;
356
357	irq = link->irq;
358
359	printk("comedi%d: %s: DAQCard: io 0x%04lx, irq %u, ",
360	       dev->minor, dev->driver->driver_name, dev->iobase, irq);
361
362#if 0
363	{
364		int i;
365
366		printk(" board fingerprint:");
367		for (i = 0; i < 32; i += 2) {
368			printk(" %04x %02x", inw(dev->iobase + i),
369			       inb(dev->iobase + i + 1));
370		}
371		printk("\n");
372		printk(" board fingerprint (windowed):");
373		for (i = 0; i < 10; i++)
374			printk(" 0x%04x", win_in(i));
375		printk("\n");
376	}
377#endif
378
379	dev->board_ptr = ni_boards + ni_getboardtype(dev, link);
380
381	printk(" %s", boardtype.name);
382	dev->board_name = boardtype.name;
383
384	ret = request_irq(irq, ni_E_interrupt, NI_E_IRQ_FLAGS,
385			  "ni_mio_cs", dev);
386	if (ret < 0) {
387		printk(" irq not available\n");
388		return -EINVAL;
389	}
390	dev->irq = irq;
391
392	/* allocate private area */
393	ret = ni_alloc_private(dev);
394	if (ret < 0)
395		return ret;
396
397	devpriv->stc_writew = &mio_cs_win_out;
398	devpriv->stc_readw = &mio_cs_win_in;
399	devpriv->stc_writel = &win_out2;
400	devpriv->stc_readl = &win_in2;
401
402	ret = ni_E_init(dev, it);
403
404	if (ret < 0)
405		return ret;
406
407	return 0;
408}
409
410static int ni_getboardtype(struct comedi_device *dev,
411			   struct pcmcia_device *link)
412{
413	int i;
414
415	for (i = 0; i < n_ni_boards; i++) {
416		if (ni_boards[i].device_id == link->card_id)
417			return i;
418	}
419
420	printk("unknown board 0x%04x -- pretend it is a ", link->card_id);
421
422	return 0;
423}
424
425#ifdef MODULE
426
427static struct pcmcia_device_id ni_mio_cs_ids[] = {
428	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x010d),	/* DAQCard-ai-16xe-50 */
429	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x010c),	/* DAQCard-ai-16e-4 */
430	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x02c4),	/* DAQCard-6062E */
431	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x075e),	/* DAQCard-6024E */
432	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x0245),	/* DAQCard-6036E */
433	PCMCIA_DEVICE_NULL
434};
435
436MODULE_DEVICE_TABLE(pcmcia, ni_mio_cs_ids);
437MODULE_AUTHOR("David A. Schleef <ds@schleef.org>");
438MODULE_DESCRIPTION("Comedi driver for National Instruments DAQCard E series");
439MODULE_LICENSE("GPL");
440
441struct pcmcia_driver ni_mio_cs_driver = {
442	.probe = &cs_attach,
443	.remove = &cs_detach,
444	.suspend = &mio_cs_suspend,
445	.resume = &mio_cs_resume,
446	.id_table = ni_mio_cs_ids,
447	.owner = THIS_MODULE,
448	.drv = {
449		.name = "ni_mio_cs",
450		},
451};
452
453int init_module(void)
454{
455	pcmcia_register_driver(&ni_mio_cs_driver);
456	comedi_driver_register(&driver_ni_mio_cs);
457	return 0;
458}
459
460void cleanup_module(void)
461{
462	pcmcia_unregister_driver(&ni_mio_cs_driver);
463#if 0
464	while (cur_dev != NULL)
465		cs_detach(cur_dev->handle);
466#endif
467	comedi_driver_unregister(&driver_ni_mio_cs);
468}
469#endif
470