cb_das16_cs.c revision 7feabb6412ea23edd298c0fa90e5aa6733eb4a42
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/*
24Driver: cb_das16_cs
25Description: Computer Boards PC-CARD DAS16/16
26Devices: [ComputerBoards] PC-CARD DAS16/16 (cb_das16_cs), PC-CARD DAS16/16-AO
27Author: ds
28Updated: Mon, 04 Nov 2002 20:04:21 -0800
29Status: experimental
30
31
32*/
33
34#include <linux/interrupt.h>
35#include <linux/slab.h>
36#include "../comedidev.h"
37#include <linux/delay.h>
38#include <linux/pci.h>
39
40#include <pcmcia/cs.h>
41#include <pcmcia/cistpl.h>
42#include <pcmcia/ds.h>
43
44#include "8253.h"
45
46#define DAS16CS_SIZE			18
47
48#define DAS16CS_ADC_DATA		0
49#define DAS16CS_DIO_MUX			2
50#define DAS16CS_MISC1			4
51#define DAS16CS_MISC2			6
52#define DAS16CS_CTR0			8
53#define DAS16CS_CTR1			10
54#define DAS16CS_CTR2			12
55#define DAS16CS_CTR_CONTROL		14
56#define DAS16CS_DIO			16
57
58struct das16cs_board {
59	const char *name;
60	int device_id;
61	int n_ao_chans;
62};
63static const struct das16cs_board das16cs_boards[] = {
64	{
65	 .device_id = 0x0000,	/* unknown */
66	 .name = "PC-CARD DAS16/16",
67	 .n_ao_chans = 0,
68	 },
69	{
70	 .device_id = 0x0039,
71	 .name = "PC-CARD DAS16/16-AO",
72	 .n_ao_chans = 2,
73	 },
74	{
75	 .device_id = 0x4009,
76	 .name = "PCM-DAS16s/16",
77	 .n_ao_chans = 0,
78	 },
79};
80
81#define n_boards ARRAY_SIZE(das16cs_boards)
82#define thisboard ((const struct das16cs_board *)dev->board_ptr)
83
84struct das16cs_private {
85	struct pcmcia_device *link;
86
87	unsigned int ao_readback[2];
88	unsigned short status1;
89	unsigned short status2;
90};
91#define devpriv ((struct das16cs_private *)dev->private)
92
93static int das16cs_attach(struct comedi_device *dev,
94			  struct comedi_devconfig *it);
95static int das16cs_detach(struct comedi_device *dev);
96static struct comedi_driver driver_das16cs = {
97	.driver_name = "cb_das16_cs",
98	.module = THIS_MODULE,
99	.attach = das16cs_attach,
100	.detach = das16cs_detach,
101};
102
103static struct pcmcia_device *cur_dev = NULL;
104
105static const struct comedi_lrange das16cs_ai_range = { 4, {
106							   RANGE(-10, 10),
107							   RANGE(-5, 5),
108							   RANGE(-2.5, 2.5),
109							   RANGE(-1.25, 1.25),
110							   }
111};
112
113static irqreturn_t das16cs_interrupt(int irq, void *d);
114static int das16cs_ai_rinsn(struct comedi_device *dev,
115			    struct comedi_subdevice *s,
116			    struct comedi_insn *insn, unsigned int *data);
117static int das16cs_ai_cmd(struct comedi_device *dev,
118			  struct comedi_subdevice *s);
119static int das16cs_ai_cmdtest(struct comedi_device *dev,
120			      struct comedi_subdevice *s,
121			      struct comedi_cmd *cmd);
122static int das16cs_ao_winsn(struct comedi_device *dev,
123			    struct comedi_subdevice *s,
124			    struct comedi_insn *insn, unsigned int *data);
125static int das16cs_ao_rinsn(struct comedi_device *dev,
126			    struct comedi_subdevice *s,
127			    struct comedi_insn *insn, unsigned int *data);
128static int das16cs_dio_insn_bits(struct comedi_device *dev,
129				 struct comedi_subdevice *s,
130				 struct comedi_insn *insn, unsigned int *data);
131static int das16cs_dio_insn_config(struct comedi_device *dev,
132				   struct comedi_subdevice *s,
133				   struct comedi_insn *insn,
134				   unsigned int *data);
135static int das16cs_timer_insn_read(struct comedi_device *dev,
136				   struct comedi_subdevice *s,
137				   struct comedi_insn *insn,
138				   unsigned int *data);
139static int das16cs_timer_insn_config(struct comedi_device *dev,
140				     struct comedi_subdevice *s,
141				     struct comedi_insn *insn,
142				     unsigned int *data);
143
144static const struct das16cs_board *das16cs_probe(struct comedi_device *dev,
145						 struct pcmcia_device *link)
146{
147	int i;
148
149	for (i = 0; i < n_boards; i++) {
150		if (das16cs_boards[i].device_id == link->card_id)
151			return das16cs_boards + i;
152	}
153
154	printk("unknown board!\n");
155
156	return NULL;
157}
158
159static int das16cs_attach(struct comedi_device *dev,
160			  struct comedi_devconfig *it)
161{
162	struct pcmcia_device *link;
163	struct comedi_subdevice *s;
164	int ret;
165	int i;
166
167	printk("comedi%d: cb_das16_cs: ", dev->minor);
168
169	link = cur_dev;		/* XXX hack */
170	if (!link)
171		return -EIO;
172
173	dev->iobase = link->resource[0]->start;;
174	printk("I/O base=0x%04lx ", dev->iobase);
175
176	printk("fingerprint:\n");
177	for (i = 0; i < 48; i += 2)
178		printk("%04x ", inw(dev->iobase + i));
179
180	printk("\n");
181
182	ret = request_irq(link->irq, das16cs_interrupt,
183			  IRQF_SHARED, "cb_das16_cs", dev);
184	if (ret < 0)
185		return ret;
186
187	dev->irq = link->irq;
188
189	printk("irq=%u ", dev->irq);
190
191	dev->board_ptr = das16cs_probe(dev, link);
192	if (!dev->board_ptr)
193		return -EIO;
194
195	dev->board_name = thisboard->name;
196
197	if (alloc_private(dev, sizeof(struct das16cs_private)) < 0)
198		return -ENOMEM;
199
200	if (alloc_subdevices(dev, 4) < 0)
201		return -ENOMEM;
202
203	s = dev->subdevices + 0;
204	dev->read_subdev = s;
205	/* analog input subdevice */
206	s->type = COMEDI_SUBD_AI;
207	s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DIFF | SDF_CMD_READ;
208	s->n_chan = 16;
209	s->maxdata = 0xffff;
210	s->range_table = &das16cs_ai_range;
211	s->len_chanlist = 16;
212	s->insn_read = das16cs_ai_rinsn;
213	s->do_cmd = das16cs_ai_cmd;
214	s->do_cmdtest = das16cs_ai_cmdtest;
215
216	s = dev->subdevices + 1;
217	/* analog output subdevice */
218	if (thisboard->n_ao_chans) {
219		s->type = COMEDI_SUBD_AO;
220		s->subdev_flags = SDF_WRITABLE;
221		s->n_chan = thisboard->n_ao_chans;
222		s->maxdata = 0xffff;
223		s->range_table = &range_bipolar10;
224		s->insn_write = &das16cs_ao_winsn;
225		s->insn_read = &das16cs_ao_rinsn;
226	}
227
228	s = dev->subdevices + 2;
229	/* digital i/o subdevice */
230	if (1) {
231		s->type = COMEDI_SUBD_DIO;
232		s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
233		s->n_chan = 8;
234		s->maxdata = 1;
235		s->range_table = &range_digital;
236		s->insn_bits = das16cs_dio_insn_bits;
237		s->insn_config = das16cs_dio_insn_config;
238	} else {
239		s->type = COMEDI_SUBD_UNUSED;
240	}
241
242	s = dev->subdevices + 3;
243	/* timer subdevice */
244	if (0) {
245		s->type = COMEDI_SUBD_TIMER;
246		s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
247		s->n_chan = 1;
248		s->maxdata = 0xff;
249		s->range_table = &range_unknown;
250		s->insn_read = das16cs_timer_insn_read;
251		s->insn_config = das16cs_timer_insn_config;
252	} else {
253		s->type = COMEDI_SUBD_UNUSED;
254	}
255
256	printk("attached\n");
257
258	return 1;
259}
260
261static int das16cs_detach(struct comedi_device *dev)
262{
263	printk("comedi%d: das16cs: remove\n", dev->minor);
264
265	if (dev->irq)
266		free_irq(dev->irq, dev);
267
268
269	return 0;
270}
271
272static irqreturn_t das16cs_interrupt(int irq, void *d)
273{
274	/* struct comedi_device *dev = d; */
275	return IRQ_HANDLED;
276}
277
278/*
279 * "instructions" read/write data in "one-shot" or "software-triggered"
280 * mode.
281 */
282static int das16cs_ai_rinsn(struct comedi_device *dev,
283			    struct comedi_subdevice *s,
284			    struct comedi_insn *insn, unsigned int *data)
285{
286	int i;
287	int to;
288	int aref;
289	int range;
290	int chan;
291	static int range_bits[] = { 0x800, 0x000, 0x100, 0x200 };
292
293	chan = CR_CHAN(insn->chanspec);
294	aref = CR_AREF(insn->chanspec);
295	range = CR_RANGE(insn->chanspec);
296
297	outw(chan, dev->iobase + 2);
298
299	devpriv->status1 &= ~0xf320;
300	devpriv->status1 |= (aref == AREF_DIFF) ? 0 : 0x0020;
301	outw(devpriv->status1, dev->iobase + 4);
302
303	devpriv->status2 &= ~0xff00;
304	devpriv->status2 |= range_bits[range];
305	outw(devpriv->status2, dev->iobase + 6);
306
307	for (i = 0; i < insn->n; i++) {
308		outw(0, dev->iobase);
309
310#define TIMEOUT 1000
311		for (to = 0; to < TIMEOUT; to++) {
312			if (inw(dev->iobase + 4) & 0x0080)
313				break;
314		}
315		if (to == TIMEOUT) {
316			printk("cb_das16_cs: ai timeout\n");
317			return -ETIME;
318		}
319		data[i] = (unsigned short)inw(dev->iobase + 0);
320	}
321
322	return i;
323}
324
325static int das16cs_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
326{
327	return -EINVAL;
328}
329
330static int das16cs_ai_cmdtest(struct comedi_device *dev,
331			      struct comedi_subdevice *s,
332			      struct comedi_cmd *cmd)
333{
334	int err = 0;
335	int tmp;
336
337	/* cmdtest tests a particular command to see if it is valid.
338	 * Using the cmdtest ioctl, a user can create a valid cmd
339	 * and then have it executes by the cmd ioctl.
340	 *
341	 * cmdtest returns 1,2,3,4 or 0, depending on which tests
342	 * the command passes. */
343
344	/* step 1: make sure trigger sources are trivially valid */
345
346	tmp = cmd->start_src;
347	cmd->start_src &= TRIG_NOW;
348	if (!cmd->start_src || tmp != cmd->start_src)
349		err++;
350
351	tmp = cmd->scan_begin_src;
352	cmd->scan_begin_src &= TRIG_TIMER | TRIG_EXT;
353	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
354		err++;
355
356	tmp = cmd->convert_src;
357	cmd->convert_src &= TRIG_TIMER | TRIG_EXT;
358	if (!cmd->convert_src || tmp != cmd->convert_src)
359		err++;
360
361	tmp = cmd->scan_end_src;
362	cmd->scan_end_src &= TRIG_COUNT;
363	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
364		err++;
365
366	tmp = cmd->stop_src;
367	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
368	if (!cmd->stop_src || tmp != cmd->stop_src)
369		err++;
370
371	if (err)
372		return 1;
373
374	/* step 2: make sure trigger sources are unique and mutually compatible */
375
376	/* note that mutual compatibility is not an issue here */
377	if (cmd->scan_begin_src != TRIG_TIMER &&
378	    cmd->scan_begin_src != TRIG_EXT)
379		err++;
380	if (cmd->convert_src != TRIG_TIMER && cmd->convert_src != TRIG_EXT)
381		err++;
382	if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
383		err++;
384
385	if (err)
386		return 2;
387
388	/* step 3: make sure arguments are trivially compatible */
389
390	if (cmd->start_arg != 0) {
391		cmd->start_arg = 0;
392		err++;
393	}
394#define MAX_SPEED	10000	/* in nanoseconds */
395#define MIN_SPEED	1000000000	/* in nanoseconds */
396
397	if (cmd->scan_begin_src == TRIG_TIMER) {
398		if (cmd->scan_begin_arg < MAX_SPEED) {
399			cmd->scan_begin_arg = MAX_SPEED;
400			err++;
401		}
402		if (cmd->scan_begin_arg > MIN_SPEED) {
403			cmd->scan_begin_arg = MIN_SPEED;
404			err++;
405		}
406	} else {
407		/* external trigger */
408		/* should be level/edge, hi/lo specification here */
409		/* should specify multiple external triggers */
410		if (cmd->scan_begin_arg > 9) {
411			cmd->scan_begin_arg = 9;
412			err++;
413		}
414	}
415	if (cmd->convert_src == TRIG_TIMER) {
416		if (cmd->convert_arg < MAX_SPEED) {
417			cmd->convert_arg = MAX_SPEED;
418			err++;
419		}
420		if (cmd->convert_arg > MIN_SPEED) {
421			cmd->convert_arg = MIN_SPEED;
422			err++;
423		}
424	} else {
425		/* external trigger */
426		/* see above */
427		if (cmd->convert_arg > 9) {
428			cmd->convert_arg = 9;
429			err++;
430		}
431	}
432
433	if (cmd->scan_end_arg != cmd->chanlist_len) {
434		cmd->scan_end_arg = cmd->chanlist_len;
435		err++;
436	}
437	if (cmd->stop_src == TRIG_COUNT) {
438		if (cmd->stop_arg > 0x00ffffff) {
439			cmd->stop_arg = 0x00ffffff;
440			err++;
441		}
442	} else {
443		/* TRIG_NONE */
444		if (cmd->stop_arg != 0) {
445			cmd->stop_arg = 0;
446			err++;
447		}
448	}
449
450	if (err)
451		return 3;
452
453	/* step 4: fix up any arguments */
454
455	if (cmd->scan_begin_src == TRIG_TIMER) {
456		unsigned int div1 = 0, div2 = 0;
457
458		tmp = cmd->scan_begin_arg;
459		i8253_cascade_ns_to_timer(100, &div1, &div2,
460					  &cmd->scan_begin_arg,
461					  cmd->flags & TRIG_ROUND_MASK);
462		if (tmp != cmd->scan_begin_arg)
463			err++;
464	}
465	if (cmd->convert_src == TRIG_TIMER) {
466		unsigned int div1 = 0, div2 = 0;
467
468		tmp = cmd->convert_arg;
469		i8253_cascade_ns_to_timer(100, &div1, &div2,
470					  &cmd->scan_begin_arg,
471					  cmd->flags & TRIG_ROUND_MASK);
472		if (tmp != cmd->convert_arg)
473			err++;
474		if (cmd->scan_begin_src == TRIG_TIMER &&
475		    cmd->scan_begin_arg <
476		    cmd->convert_arg * cmd->scan_end_arg) {
477			cmd->scan_begin_arg =
478			    cmd->convert_arg * cmd->scan_end_arg;
479			err++;
480		}
481	}
482
483	if (err)
484		return 4;
485
486	return 0;
487}
488
489static int das16cs_ao_winsn(struct comedi_device *dev,
490			    struct comedi_subdevice *s,
491			    struct comedi_insn *insn, unsigned int *data)
492{
493	int i;
494	int chan = CR_CHAN(insn->chanspec);
495	unsigned short status1;
496	unsigned short d;
497	int bit;
498
499	for (i = 0; i < insn->n; i++) {
500		devpriv->ao_readback[chan] = data[i];
501		d = data[i];
502
503		outw(devpriv->status1, dev->iobase + 4);
504		udelay(1);
505
506		status1 = devpriv->status1 & ~0xf;
507		if (chan)
508			status1 |= 0x0001;
509		else
510			status1 |= 0x0008;
511
512/* 		printk("0x%04x\n",status1);*/
513		outw(status1, dev->iobase + 4);
514		udelay(1);
515
516		for (bit = 15; bit >= 0; bit--) {
517			int b = (d >> bit) & 0x1;
518			b <<= 1;
519/*			printk("0x%04x\n",status1 | b | 0x0000);*/
520			outw(status1 | b | 0x0000, dev->iobase + 4);
521			udelay(1);
522/*			printk("0x%04x\n",status1 | b | 0x0004);*/
523			outw(status1 | b | 0x0004, dev->iobase + 4);
524			udelay(1);
525		}
526/*		make high both DAC0CS and DAC1CS to load
527		new data and update analog output*/
528		outw(status1 | 0x9, dev->iobase + 4);
529	}
530
531	return i;
532}
533
534/* AO subdevices should have a read insn as well as a write insn.
535 * Usually this means copying a value stored in devpriv. */
536static int das16cs_ao_rinsn(struct comedi_device *dev,
537			    struct comedi_subdevice *s,
538			    struct comedi_insn *insn, unsigned int *data)
539{
540	int i;
541	int chan = CR_CHAN(insn->chanspec);
542
543	for (i = 0; i < insn->n; i++)
544		data[i] = devpriv->ao_readback[chan];
545
546	return i;
547}
548
549/* DIO devices are slightly special.  Although it is possible to
550 * implement the insn_read/insn_write interface, it is much more
551 * useful to applications if you implement the insn_bits interface.
552 * This allows packed reading/writing of the DIO channels.  The
553 * comedi core can convert between insn_bits and insn_read/write */
554static int das16cs_dio_insn_bits(struct comedi_device *dev,
555				 struct comedi_subdevice *s,
556				 struct comedi_insn *insn, unsigned int *data)
557{
558	if (insn->n != 2)
559		return -EINVAL;
560
561	if (data[0]) {
562		s->state &= ~data[0];
563		s->state |= data[0] & data[1];
564
565		outw(s->state, dev->iobase + 16);
566	}
567
568	/* on return, data[1] contains the value of the digital
569	 * input and output lines. */
570	data[1] = inw(dev->iobase + 16);
571
572	return 2;
573}
574
575static int das16cs_dio_insn_config(struct comedi_device *dev,
576				   struct comedi_subdevice *s,
577				   struct comedi_insn *insn, unsigned int *data)
578{
579	int chan = CR_CHAN(insn->chanspec);
580	int bits;
581
582	if (chan < 4)
583		bits = 0x0f;
584	else
585		bits = 0xf0;
586
587	switch (data[0]) {
588	case INSN_CONFIG_DIO_OUTPUT:
589		s->io_bits |= bits;
590		break;
591	case INSN_CONFIG_DIO_INPUT:
592		s->io_bits &= bits;
593		break;
594	case INSN_CONFIG_DIO_QUERY:
595		data[1] =
596		    (s->io_bits & (1 << chan)) ? COMEDI_OUTPUT : COMEDI_INPUT;
597		return insn->n;
598		break;
599	default:
600		return -EINVAL;
601		break;
602	}
603
604	devpriv->status2 &= ~0x00c0;
605	devpriv->status2 |= (s->io_bits & 0xf0) ? 0x0080 : 0;
606	devpriv->status2 |= (s->io_bits & 0x0f) ? 0x0040 : 0;
607
608	outw(devpriv->status2, dev->iobase + 6);
609
610	return insn->n;
611}
612
613static int das16cs_timer_insn_read(struct comedi_device *dev,
614				   struct comedi_subdevice *s,
615				   struct comedi_insn *insn, unsigned int *data)
616{
617	return -EINVAL;
618}
619
620static int das16cs_timer_insn_config(struct comedi_device *dev,
621				     struct comedi_subdevice *s,
622				     struct comedi_insn *insn,
623				     unsigned int *data)
624{
625	return -EINVAL;
626}
627
628/* PCMCIA stuff */
629
630/*======================================================================
631
632    The following pcmcia code for the pcm-das08 is adapted from the
633    dummy_cs.c driver of the Linux PCMCIA Card Services package.
634
635    The initial developer of the original code is David A. Hinds
636    <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
637    are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
638
639======================================================================*/
640
641#if defined(CONFIG_PCMCIA) || defined(CONFIG_PCMCIA_MODULE)
642
643static void das16cs_pcmcia_config(struct pcmcia_device *link);
644static void das16cs_pcmcia_release(struct pcmcia_device *link);
645static int das16cs_pcmcia_suspend(struct pcmcia_device *p_dev);
646static int das16cs_pcmcia_resume(struct pcmcia_device *p_dev);
647
648/*
649   The attach() and detach() entry points are used to create and destroy
650   "instances" of the driver, where each instance represents everything
651   needed to manage one actual PCMCIA card.
652*/
653
654static int das16cs_pcmcia_attach(struct pcmcia_device *);
655static void das16cs_pcmcia_detach(struct pcmcia_device *);
656
657/*
658   You'll also need to prototype all the functions that will actually
659   be used to talk to your device.  See 'memory_cs' for a good example
660   of a fully self-sufficient driver; the other drivers rely more or
661   less on other parts of the kernel.
662*/
663
664struct local_info_t {
665	struct pcmcia_device *link;
666	int stop;
667	struct bus_operations *bus;
668};
669
670/*======================================================================
671
672    das16cs_pcmcia_attach() creates an "instance" of the driver, allocating
673    local data structures for one device.  The device is registered
674    with Card Services.
675
676    The dev_link structure is initialized, but we don't actually
677    configure the card at this point -- we wait until we receive a
678    card insertion event.
679
680======================================================================*/
681
682static int das16cs_pcmcia_attach(struct pcmcia_device *link)
683{
684	struct local_info_t *local;
685
686	dev_dbg(&link->dev, "das16cs_pcmcia_attach()\n");
687
688	/* Allocate space for private device-specific data */
689	local = kzalloc(sizeof(struct local_info_t), GFP_KERNEL);
690	if (!local)
691		return -ENOMEM;
692	local->link = link;
693	link->priv = local;
694
695	/* Initialize the pcmcia_device structure */
696	link->conf.Attributes = 0;
697
698	cur_dev = link;
699
700	das16cs_pcmcia_config(link);
701
702	return 0;
703}				/* das16cs_pcmcia_attach */
704
705static void das16cs_pcmcia_detach(struct pcmcia_device *link)
706{
707	dev_dbg(&link->dev, "das16cs_pcmcia_detach\n");
708
709	((struct local_info_t *)link->priv)->stop = 1;
710	das16cs_pcmcia_release(link);
711	/* This points to the parent struct local_info_t struct */
712	kfree(link->priv);
713}				/* das16cs_pcmcia_detach */
714
715
716static int das16cs_pcmcia_config_loop(struct pcmcia_device *p_dev,
717				cistpl_cftable_entry_t *cfg,
718				cistpl_cftable_entry_t *dflt,
719				unsigned int vcc,
720				void *priv_data)
721{
722	if (cfg->index == 0)
723		return -EINVAL;
724
725	/* Do we need to allocate an interrupt? */
726	p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
727
728	/* IO window settings */
729	p_dev->resource[0]->end = p_dev->resource[1]->end = 0;
730	if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) {
731		cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io;
732		p_dev->io_lines = io->flags & CISTPL_IO_LINES_MASK;
733		p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
734		p_dev->resource[0]->flags |=
735			pcmcia_io_cfg_data_width(io->flags);
736		p_dev->resource[0]->start = io->win[0].base;
737		p_dev->resource[0]->end = io->win[0].len;
738		if (io->nwin > 1) {
739			p_dev->resource[1]->flags = p_dev->resource[0]->flags;
740			p_dev->resource[1]->start = io->win[1].base;
741			p_dev->resource[1]->end = io->win[1].len;
742		}
743		/* This reserves IO space but doesn't actually enable it */
744		return pcmcia_request_io(p_dev);
745	}
746
747	return 0;
748}
749
750static void das16cs_pcmcia_config(struct pcmcia_device *link)
751{
752	int ret;
753
754	dev_dbg(&link->dev, "das16cs_pcmcia_config\n");
755
756	ret = pcmcia_loop_config(link, das16cs_pcmcia_config_loop, NULL);
757	if (ret) {
758		dev_warn(&link->dev, "no configuration found\n");
759		goto failed;
760	}
761
762	if (!link->irq)
763		goto failed;
764
765	/*
766	   This actually configures the PCMCIA socket -- setting up
767	   the I/O windows and the interrupt mapping, and putting the
768	   card and host interface into "Memory and IO" mode.
769	 */
770	ret = pcmcia_request_configuration(link, &link->conf);
771	if (ret)
772		goto failed;
773
774	/* Finally, report what we've done */
775	dev_info(&link->dev, "index 0x%02x", link->config_index);
776	if (link->conf.Attributes & CONF_ENABLE_IRQ)
777		printk(", irq %u", link->irq);
778	if (link->resource[0])
779		printk(", io %pR", link->resource[0]);
780	if (link->resource[1])
781		printk(", io %pR", link->resource[1]);
782	printk("\n");
783
784	return;
785
786failed:
787	das16cs_pcmcia_release(link);
788}				/* das16cs_pcmcia_config */
789
790static void das16cs_pcmcia_release(struct pcmcia_device *link)
791{
792	dev_dbg(&link->dev, "das16cs_pcmcia_release\n");
793	pcmcia_disable_device(link);
794}				/* das16cs_pcmcia_release */
795
796static int das16cs_pcmcia_suspend(struct pcmcia_device *link)
797{
798	struct local_info_t *local = link->priv;
799
800	/* Mark the device as stopped, to block IO until later */
801	local->stop = 1;
802
803	return 0;
804}				/* das16cs_pcmcia_suspend */
805
806static int das16cs_pcmcia_resume(struct pcmcia_device *link)
807{
808	struct local_info_t *local = link->priv;
809
810	local->stop = 0;
811	return 0;
812}				/* das16cs_pcmcia_resume */
813
814/*====================================================================*/
815
816static struct pcmcia_device_id das16cs_id_table[] = {
817	PCMCIA_DEVICE_MANF_CARD(0x01c5, 0x0039),
818	PCMCIA_DEVICE_MANF_CARD(0x01c5, 0x4009),
819	PCMCIA_DEVICE_NULL
820};
821
822MODULE_DEVICE_TABLE(pcmcia, das16cs_id_table);
823MODULE_AUTHOR("David A. Schleef <ds@schleef.org>");
824MODULE_DESCRIPTION("Comedi driver for Computer Boards PC-CARD DAS16/16");
825MODULE_LICENSE("GPL");
826
827struct pcmcia_driver das16cs_driver = {
828	.probe = das16cs_pcmcia_attach,
829	.remove = das16cs_pcmcia_detach,
830	.suspend = das16cs_pcmcia_suspend,
831	.resume = das16cs_pcmcia_resume,
832	.id_table = das16cs_id_table,
833	.owner = THIS_MODULE,
834	.drv = {
835		.name = "cb_das16_cs",
836		},
837};
838
839static int __init init_das16cs_pcmcia_cs(void)
840{
841	pcmcia_register_driver(&das16cs_driver);
842	return 0;
843}
844
845static void __exit exit_das16cs_pcmcia_cs(void)
846{
847	pr_debug("das16cs_pcmcia_cs: unloading\n");
848	pcmcia_unregister_driver(&das16cs_driver);
849}
850
851int __init init_module(void)
852{
853	int ret;
854
855	ret = init_das16cs_pcmcia_cs();
856	if (ret < 0)
857		return ret;
858
859	return comedi_driver_register(&driver_das16cs);
860}
861
862void __exit cleanup_module(void)
863{
864	exit_das16cs_pcmcia_cs();
865	comedi_driver_unregister(&driver_das16cs);
866}
867
868#else
869static int __init driver_das16cs_init_module(void)
870{
871	return comedi_driver_register(&driver_das16cs);
872}
873
874static void __exit driver_das16cs_cleanup_module(void)
875{
876	comedi_driver_unregister(&driver_das16cs);
877}
878
879module_init(driver_das16cs_init_module);
880module_exit(driver_das16cs_cleanup_module);
881#endif /* CONFIG_PCMCIA */
882