[linux-2.6-block.git] / drivers / staging / comedi / drivers / pcl726.c

/*
    comedi/drivers/pcl726.c

    hardware driver for Advantech cards:
     card:   PCL-726, PCL-727, PCL-728
     driver: pcl726,  pcl727,  pcl728
    and for ADLink cards:
     card:   ACL-6126, ACL-6128
     driver: acl6126,  acl6128

    COMEDI - Linux Control and Measurement Device Interface
    Copyright (C) 1998 David A. Schleef <ds@schleef.org>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/
/*
Driver: pcl726
Description: Advantech PCL-726 & compatibles
Author: ds
Status: untested
Devices: [Advantech] PCL-726 (pcl726), PCL-727 (pcl727), PCL-728 (pcl728),
  [ADLink] ACL-6126 (acl6126), ACL-6128 (acl6128)

Interrupts are not supported.

    Options for PCL-726:
     [0] - IO Base
     [2]...[7] - D/A output range for channel 1-6:
               0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V,
	       4: 4-20mA, 5: unknown (external reference)

    Options for PCL-727:
     [0] - IO Base
     [2]...[13] - D/A output range for channel 1-12:
               0: 0-5V, 1: 0-10V, 2: +/-5V,
	       3: 4-20mA

    Options for PCL-728 and ACL-6128:
     [0] - IO Base
     [2], [3] - D/A output range for channel 1 and 2:
               0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V,
	       4: 4-20mA, 5: 0-20mA

    Options for ACL-6126:
     [0] - IO Base
     [1] - IRQ (0=disable, 3, 5, 6, 7, 9, 10, 11, 12, 15) (currently ignored)
     [2]...[7] - D/A output range for channel 1-6:
               0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V,
	       4: 4-20mA
*/

/*
    Thanks to Circuit Specialists for having programming info (!) on
    their web page.  (http://www.cir.com/)
*/

#include "../comedidev.h"

#include <linux/ioport.h>

#undef ACL6126_IRQ		/* no interrupt support (yet) */

#define PCL726_SIZE 16
#define PCL727_SIZE 32
#define PCL728_SIZE 8

#define PCL726_DAC0_HI 0
#define PCL726_DAC0_LO 1

#define PCL726_DO_HI 12
#define PCL726_DO_LO 13
#define PCL726_DI_HI 14
#define PCL726_DI_LO 15

#define PCL727_DO_HI 24
#define PCL727_DO_LO 25
#define PCL727_DI_HI  0
#define PCL727_DI_LO  1

static const struct comedi_lrange range_4_20mA = { 1, {RANGE_mA(4, 20)} };
static const struct comedi_lrange range_0_20mA = { 1, {RANGE_mA(0, 20)} };

static const struct comedi_lrange *const rangelist_726[] = {
	&range_unipolar5, &range_unipolar10,
	&range_bipolar5, &range_bipolar10,
	&range_4_20mA, &range_unknown
};

static const struct comedi_lrange *const rangelist_727[] = {
	&range_unipolar5, &range_unipolar10,
	&range_bipolar5,
	&range_4_20mA
};

static const struct comedi_lrange *const rangelist_728[] = {
	&range_unipolar5, &range_unipolar10,
	&range_bipolar5, &range_bipolar10,
	&range_4_20mA, &range_0_20mA
};

static int pcl726_attach(struct comedi_device *dev,
			 struct comedi_devconfig *it);
static int pcl726_detach(struct comedi_device *dev);

struct pcl726_board {

	const char *name;	/*  driver name */
	int n_aochan;		/*  num of D/A chans */
	int num_of_ranges;	/*  num of ranges */
	unsigned int IRQbits;	/*  allowed interrupts */
	unsigned int io_range;	/*  len of IO space */
	char have_dio;		/*  1=card have DI/DO ports */
	int di_hi;		/*  ports for DI/DO operations */
	int di_lo;
	int do_hi;
	int do_lo;
	const struct comedi_lrange *const *range_type_list;	/*  list of supported ranges */
};

static const struct pcl726_board boardtypes[] = {
	{"pcl726", 6, 6, 0x0000, PCL726_SIZE, 1,
	 PCL726_DI_HI, PCL726_DI_LO, PCL726_DO_HI, PCL726_DO_LO,
	 &rangelist_726[0],},
	{"pcl727", 12, 4, 0x0000, PCL727_SIZE, 1,
	 PCL727_DI_HI, PCL727_DI_LO, PCL727_DO_HI, PCL727_DO_LO,
	 &rangelist_727[0],},
	{"pcl728", 2, 6, 0x0000, PCL728_SIZE, 0,
	 0, 0, 0, 0,
	 &rangelist_728[0],},
	{"acl6126", 6, 5, 0x96e8, PCL726_SIZE, 1,
	 PCL726_DI_HI, PCL726_DI_LO, PCL726_DO_HI, PCL726_DO_LO,
	 &rangelist_726[0],},
	{"acl6128", 2, 6, 0x0000, PCL728_SIZE, 0,
	 0, 0, 0, 0,
	 &rangelist_728[0],},
};

#define n_boardtypes (sizeof(boardtypes)/sizeof(struct pcl726_board))
#define this_board ((const struct pcl726_board *)dev->board_ptr)

static struct comedi_driver driver_pcl726 = {
	.driver_name = "pcl726",
	.module = THIS_MODULE,
	.attach = pcl726_attach,
	.detach = pcl726_detach,
	.board_name = &boardtypes[0].name,
	.num_names = n_boardtypes,
	.offset = sizeof(struct pcl726_board),
};

COMEDI_INITCLEANUP(driver_pcl726);

struct pcl726_private {

	int bipolar[12];
	const struct comedi_lrange *rangelist[12];
	unsigned int ao_readback[12];
};

#define devpriv ((struct pcl726_private *)dev->private)

static int pcl726_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s,
			  struct comedi_insn *insn, unsigned int *data)
{
	int hi, lo;
	int n;
	int chan = CR_CHAN(insn->chanspec);

	for (n = 0; n < insn->n; n++) {
		lo = data[n] & 0xff;
		hi = (data[n] >> 8) & 0xf;
		if (devpriv->bipolar[chan])
			hi ^= 0x8;
		/*
		 * the programming info did not say which order
		 * to write bytes.  switch the order of the next
		 * two lines if you get glitches.
		 */
		outb(hi, dev->iobase + PCL726_DAC0_HI + 2 * chan);
		outb(lo, dev->iobase + PCL726_DAC0_LO + 2 * chan);
		devpriv->ao_readback[chan] = data[n];
	}

	return n;
}

static int pcl726_ao_insn_read(struct comedi_device *dev,
			       struct comedi_subdevice *s,
			       struct comedi_insn *insn, unsigned int *data)
{
	int chan = CR_CHAN(insn->chanspec);
	int n;

	for (n = 0; n < insn->n; n++) {
		data[n] = devpriv->ao_readback[chan];
	}
	return n;
}

static int pcl726_di_insn_bits(struct comedi_device *dev,
			       struct comedi_subdevice *s,
			       struct comedi_insn *insn, unsigned int *data)
{
	if (insn->n != 2)
		return -EINVAL;

	data[1] = inb(dev->iobase + this_board->di_lo) |
	    (inb(dev->iobase + this_board->di_hi) << 8);

	return 2;
}

static int pcl726_do_insn_bits(struct comedi_device *dev,
			       struct comedi_subdevice *s,
			       struct comedi_insn *insn, unsigned int *data)
{
	if (insn->n != 2)
		return -EINVAL;

	if (data[0]) {
		s->state &= ~data[0];
		s->state |= data[0] & data[1];
	}
	if (data[1] & 0x00ff)
		outb(s->state & 0xff, dev->iobase + this_board->do_lo);
	if (data[1] & 0xff00)
		outb((s->state >> 8), dev->iobase + this_board->do_hi);

	data[1] = s->state;

	return 2;
}

static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it)
{
	struct comedi_subdevice *s;
	unsigned long iobase;
	unsigned int iorange;
	int ret, i;
#ifdef ACL6126_IRQ
	unsigned int irq;
#endif

	iobase = it->options[0];
	iorange = this_board->io_range;
	printk("comedi%d: pcl726: board=%s, 0x%03lx ", dev->minor,
	       this_board->name, iobase);
	if (!request_region(iobase, iorange, "pcl726")) {
		printk("I/O port conflict\n");
		return -EIO;
	}

	dev->iobase = iobase;

	dev->board_name = this_board->name;

	ret = alloc_private(dev, sizeof(struct pcl726_private));
	if (ret < 0)
		return -ENOMEM;

	for (i = 0; i < 12; i++) {
		devpriv->bipolar[i] = 0;
		devpriv->rangelist[i] = &range_unknown;
	}

#ifdef ACL6126_IRQ
	irq = 0;
	if (boardtypes[board].IRQbits != 0) {	/* board support IRQ */
		irq = it->options[1];
		devpriv->first_chan = 2;
		if (irq) {	/* we want to use IRQ */
			if (((1 << irq) & boardtypes[board].IRQbits) == 0) {
				printk
				    (", IRQ %d is out of allowed range, DISABLING IT",
				     irq);
				irq = 0;	/* Bad IRQ */
			} else {
				if (request_irq(irq, interrupt_pcl818, 0,
						"pcl726", dev)) {
					printk
					    (", unable to allocate IRQ %d, DISABLING IT",
					     irq);
					irq = 0;	/* Can't use IRQ */
				} else {
					printk(", irq=%d", irq);
				}
			}
		}
	}

	dev->irq = irq;
#endif

	printk("\n");

	ret = alloc_subdevices(dev, 3);
	if (ret < 0)
		return ret;

	s = dev->subdevices + 0;
	/* ao */
	s->type = COMEDI_SUBD_AO;
	s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
	s->n_chan = this_board->n_aochan;
	s->maxdata = 0xfff;
	s->len_chanlist = 1;
	s->insn_write = pcl726_ao_insn;
	s->insn_read = pcl726_ao_insn_read;
	s->range_table_list = devpriv->rangelist;
	for (i = 0; i < this_board->n_aochan; i++) {
		int j;

		j = it->options[2 + 1];
		if ((j < 0) || (j >= this_board->num_of_ranges)) {
			printk
			    ("Invalid range for channel %d! Must be 0<=%d<%d\n",
			     i, j, this_board->num_of_ranges - 1);
			j = 0;
		}
		devpriv->rangelist[i] = this_board->range_type_list[j];
		if (devpriv->rangelist[i]->range[0].min ==
		    -devpriv->rangelist[i]->range[0].max)
			devpriv->bipolar[i] = 1;	/* bipolar range */
	}

	s = dev->subdevices + 1;
	/* di */
	if (!this_board->have_dio) {
		s->type = COMEDI_SUBD_UNUSED;
	} else {
		s->type = COMEDI_SUBD_DI;
		s->subdev_flags = SDF_READABLE | SDF_GROUND;
		s->n_chan = 16;
		s->maxdata = 1;
		s->len_chanlist = 1;
		s->insn_bits = pcl726_di_insn_bits;
		s->range_table = &range_digital;
	}

	s = dev->subdevices + 2;
	/* do */
	if (!this_board->have_dio) {
		s->type = COMEDI_SUBD_UNUSED;
	} else {
		s->type = COMEDI_SUBD_DO;
		s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
		s->n_chan = 16;
		s->maxdata = 1;
		s->len_chanlist = 1;
		s->insn_bits = pcl726_do_insn_bits;
		s->range_table = &range_digital;
	}

	return 0;
}

static int pcl726_detach(struct comedi_device *dev)
{
/* printk("comedi%d: pcl726: remove\n",dev->minor); */

#ifdef ACL6126_IRQ
	if (dev->irq) {
		free_irq(dev->irq, dev);
	}
#endif

	if (dev->iobase)
		release_region(dev->iobase, this_board->io_range);

	return 0;
}
Commit	Line	Data
00a22431 DS	1	/*
	2	comedi/drivers/pcl726.c
	3
	4	hardware driver for Advantech cards:
	5	card: PCL-726, PCL-727, PCL-728
	6	driver: pcl726, pcl727, pcl728
	7	and for ADLink cards:
	8	card: ACL-6126, ACL-6128
	9	driver: acl6126, acl6128
	10
	11	COMEDI - Linux Control and Measurement Device Interface
	12	Copyright (C) 1998 David A. Schleef <ds@schleef.org>
	13
	14	This program is free software; you can redistribute it and/or modify
	15	it under the terms of the GNU General Public License as published by
	16	the Free Software Foundation; either version 2 of the License, or
	17	(at your option) any later version.
	18
	19	This program is distributed in the hope that it will be useful,
	20	but WITHOUT ANY WARRANTY; without even the implied warranty of
	21	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	22	GNU General Public License for more details.
	23
	24	You should have received a copy of the GNU General Public License
	25	along with this program; if not, write to the Free Software
	26	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	27
	28	*/
	29	/*
	30	Driver: pcl726
	31	Description: Advantech PCL-726 & compatibles
	32	Author: ds
	33	Status: untested
	34	Devices: [Advantech] PCL-726 (pcl726), PCL-727 (pcl727), PCL-728 (pcl728),
	35	[ADLink] ACL-6126 (acl6126), ACL-6128 (acl6128)
	36
	37	Interrupts are not supported.
	38
	39	Options for PCL-726:
	40	[0] - IO Base
	41	[2]...[7] - D/A output range for channel 1-6:
	42	0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V,
	43	4: 4-20mA, 5: unknown (external reference)
	44
	45	Options for PCL-727:
	46	[0] - IO Base
	47	[2]...[13] - D/A output range for channel 1-12:
	48	0: 0-5V, 1: 0-10V, 2: +/-5V,
	49	3: 4-20mA
	50
	51	Options for PCL-728 and ACL-6128:
	52	[0] - IO Base
	53	[2], [3] - D/A output range for channel 1 and 2:
	54	0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V,
	55	4: 4-20mA, 5: 0-20mA
	56
	57	Options for ACL-6126:
	58	[0] - IO Base
	59	[1] - IRQ (0=disable, 3, 5, 6, 7, 9, 10, 11, 12, 15) (currently ignored)
	60	[2]...[7] - D/A output range for channel 1-6:
	61	0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V,
	62	4: 4-20mA
	63	*/
	64
65	/*
66	Thanks to Circuit Specialists for having programming info (!) on
67	their web page. (http://www.cir.com/)
68	*/
69
70	#include "../comedidev.h"
71
72	#include <linux/ioport.h>
73
74	#undef ACL6126_IRQ /* no interrupt support (yet) */
75
76	#define PCL726_SIZE 16
77	#define PCL727_SIZE 32
78	#define PCL728_SIZE 8
79
80	#define PCL726_DAC0_HI 0
81	#define PCL726_DAC0_LO 1
82
83	#define PCL726_DO_HI 12
84	#define PCL726_DO_LO 13
85	#define PCL726_DI_HI 14
86	#define PCL726_DI_LO 15
87
88	#define PCL727_DO_HI 24
89	#define PCL727_DO_LO 25
90	#define PCL727_DI_HI 0
91	#define PCL727_DI_LO 1
92
9ced1de6 BP	93	static const struct comedi_lrange range_4_20mA = { 1, {RANGE_mA(4, 20)} };
9ced1de6 BP	94	static const struct comedi_lrange range_0_20mA = { 1, {RANGE_mA(0, 20)} };
00a22431	95
9ced1de6	96	static const struct comedi_lrange *const rangelist_726[] = {
00a22431 DS	97	&range_unipolar5, &range_unipolar10,
	98	&range_bipolar5, &range_bipolar10,
	99	&range_4_20mA, &range_unknown
	100	};
	101
9ced1de6	102	static const struct comedi_lrange *const rangelist_727[] = {
00a22431 DS	103	&range_unipolar5, &range_unipolar10,
	104	&range_bipolar5,
	105	&range_4_20mA
	106	};
	107
9ced1de6	108	static const struct comedi_lrange *const rangelist_728[] = {
00a22431 DS	109	&range_unipolar5, &range_unipolar10,
	110	&range_bipolar5, &range_bipolar10,
	111	&range_4_20mA, &range_0_20mA
	112	};
	113
0a85b6f0 MT	114	static int pcl726_attach(struct comedi_device *dev,
0a85b6f0 MT	115	struct comedi_devconfig *it);
da91b269	116	static int pcl726_detach(struct comedi_device *dev);
00a22431	117
747887a6 BP	118	struct pcl726_board {
747887a6 BP	119
2696fb57 BP	120	const char name; / driver name */
	121	int n_aochan; /* num of D/A chans */
	122	int num_of_ranges; /* num of ranges */
	123	unsigned int IRQbits; /* allowed interrupts */
	124	unsigned int io_range; /* len of IO space */
	125	char have_dio; /* 1=card have DI/DO ports */
	126	int di_hi; /* ports for DI/DO operations */
00a22431 DS	127	int di_lo;
	128	int do_hi;
	129	int do_lo;
2696fb57	130	const struct comedi_lrange const range_type_list; /* list of supported ranges */
747887a6 BP	131	};
747887a6 BP	132
747887a6	133	static const struct pcl726_board boardtypes[] = {
00a22431	134	{"pcl726", 6, 6, 0x0000, PCL726_SIZE, 1,
0a85b6f0 MT	135	PCL726_DI_HI, PCL726_DI_LO, PCL726_DO_HI, PCL726_DO_LO,
0a85b6f0 MT	136	&rangelist_726[0],},
00a22431	137	{"pcl727", 12, 4, 0x0000, PCL727_SIZE, 1,
0a85b6f0 MT	138	PCL727_DI_HI, PCL727_DI_LO, PCL727_DO_HI, PCL727_DO_LO,
0a85b6f0 MT	139	&rangelist_727[0],},
00a22431	140	{"pcl728", 2, 6, 0x0000, PCL728_SIZE, 0,
0a85b6f0 MT	141	0, 0, 0, 0,
0a85b6f0 MT	142	&rangelist_728[0],},
00a22431	143	{"acl6126", 6, 5, 0x96e8, PCL726_SIZE, 1,
0a85b6f0 MT	144	PCL726_DI_HI, PCL726_DI_LO, PCL726_DO_HI, PCL726_DO_LO,
0a85b6f0 MT	145	&rangelist_726[0],},
00a22431	146	{"acl6128", 2, 6, 0x0000, PCL728_SIZE, 0,
0a85b6f0 MT	147	0, 0, 0, 0,
0a85b6f0 MT	148	&rangelist_728[0],},
00a22431 DS	149	};
00a22431 DS	150
747887a6 BP	151	#define n_boardtypes (sizeof(boardtypes)/sizeof(struct pcl726_board))
747887a6 BP	152	#define this_board ((const struct pcl726_board *)dev->board_ptr)
00a22431	153
139dfbdf	154	static struct comedi_driver driver_pcl726 = {
68c3dbff BP	155	.driver_name = "pcl726",
	156	.module = THIS_MODULE,
	157	.attach = pcl726_attach,
	158	.detach = pcl726_detach,
	159	.board_name = &boardtypes[0].name,
	160	.num_names = n_boardtypes,
	161	.offset = sizeof(struct pcl726_board),
00a22431 DS	162	};
	163
	164	COMEDI_INITCLEANUP(driver_pcl726);
	165
bf7f0610 BP	166	struct pcl726_private {
bf7f0610 BP	167
00a22431	168	int bipolar[12];
9ced1de6	169	const struct comedi_lrange *rangelist[12];
790c5541	170	unsigned int ao_readback[12];
bf7f0610 BP	171	};
	172
	173	#define devpriv ((struct pcl726_private *)dev->private)
00a22431	174
da91b269	175	static int pcl726_ao_insn(struct comedi_device dev, struct comedi_subdevice s,
0a85b6f0	176	struct comedi_insn insn, unsigned int data)
00a22431 DS	177	{
	178	int hi, lo;
	179	int n;
	180	int chan = CR_CHAN(insn->chanspec);
	181
	182	for (n = 0; n < insn->n; n++) {
	183	lo = data[n] & 0xff;
	184	hi = (data[n] >> 8) & 0xf;
	185	if (devpriv->bipolar[chan])
	186	hi ^= 0x8;
	187	/*
	188	* the programming info did not say which order
	189	* to write bytes. switch the order of the next
	190	* two lines if you get glitches.
	191	*/
	192	outb(hi, dev->iobase + PCL726_DAC0_HI + 2 * chan);
	193	outb(lo, dev->iobase + PCL726_DAC0_LO + 2 * chan);
	194	devpriv->ao_readback[chan] = data[n];
	195	}
	196
	197	return n;
	198	}
	199
0a85b6f0 MT	200	static int pcl726_ao_insn_read(struct comedi_device *dev,
	201	struct comedi_subdevice *s,
	202	struct comedi_insn insn, unsigned int data)
00a22431 DS	203	{
	204	int chan = CR_CHAN(insn->chanspec);
	205	int n;
	206
	207	for (n = 0; n < insn->n; n++) {
	208	data[n] = devpriv->ao_readback[chan];
	209	}
	210	return n;
	211	}
	212
0a85b6f0 MT	213	static int pcl726_di_insn_bits(struct comedi_device *dev,
	214	struct comedi_subdevice *s,
	215	struct comedi_insn insn, unsigned int data)
00a22431 DS	216	{
	217	if (insn->n != 2)
	218	return -EINVAL;
	219
	220	data[1] = inb(dev->iobase + this_board->di_lo) \|
0a85b6f0	221	(inb(dev->iobase + this_board->di_hi) << 8);
00a22431 DS	222
	223	return 2;
	224	}
	225
0a85b6f0 MT	226	static int pcl726_do_insn_bits(struct comedi_device *dev,
	227	struct comedi_subdevice *s,
	228	struct comedi_insn insn, unsigned int data)
00a22431 DS	229	{
	230	if (insn->n != 2)
	231	return -EINVAL;
	232
	233	if (data[0]) {
	234	s->state &= ~data[0];
	235	s->state \|= data[0] & data[1];
	236	}
	237	if (data[1] & 0x00ff)
	238	outb(s->state & 0xff, dev->iobase + this_board->do_lo);
	239	if (data[1] & 0xff00)
	240	outb((s->state >> 8), dev->iobase + this_board->do_hi);
	241
	242	data[1] = s->state;
	243
	244	return 2;
	245	}
	246
da91b269	247	static int pcl726_attach(struct comedi_device dev, struct comedi_devconfig it)
00a22431	248	{
34c43922	249	struct comedi_subdevice *s;
00a22431 DS	250	unsigned long iobase;
	251	unsigned int iorange;
	252	int ret, i;
	253	#ifdef ACL6126_IRQ
	254	unsigned int irq;
	255	#endif
	256
	257	iobase = it->options[0];
	258	iorange = this_board->io_range;
	259	printk("comedi%d: pcl726: board=%s, 0x%03lx ", dev->minor,
0a85b6f0	260	this_board->name, iobase);
00a22431 DS	261	if (!request_region(iobase, iorange, "pcl726")) {
	262	printk("I/O port conflict\n");
	263	return -EIO;
	264	}
	265
	266	dev->iobase = iobase;
	267
	268	dev->board_name = this_board->name;
	269
c3744138 BP	270	ret = alloc_private(dev, sizeof(struct pcl726_private));
c3744138 BP	271	if (ret < 0)
00a22431 DS	272	return -ENOMEM;
	273
	274	for (i = 0; i < 12; i++) {
	275	devpriv->bipolar[i] = 0;
	276	devpriv->rangelist[i] = &range_unknown;
	277	}
	278
	279	#ifdef ACL6126_IRQ
	280	irq = 0;
	281	if (boardtypes[board].IRQbits != 0) { /* board support IRQ */
	282	irq = it->options[1];
	283	devpriv->first_chan = 2;
	284	if (irq) { /* we want to use IRQ */
	285	if (((1 << irq) & boardtypes[board].IRQbits) == 0) {
5f74ea14	286	printk
0a85b6f0 MT	287	(", IRQ %d is out of allowed range, DISABLING IT",
0a85b6f0 MT	288	irq);
00a22431 DS	289	irq = 0; /* Bad IRQ */
00a22431 DS	290	} else {
5f74ea14	291	if (request_irq(irq, interrupt_pcl818, 0,
00a22431	292	"pcl726", dev)) {
5f74ea14	293	printk
0a85b6f0 MT	294	(", unable to allocate IRQ %d, DISABLING IT",
0a85b6f0 MT	295	irq);
00a22431 DS	296	irq = 0; /* Can't use IRQ */
00a22431 DS	297	} else {
5f74ea14	298	printk(", irq=%d", irq);
00a22431 DS	299	}
	300	}
	301	}
	302	}
	303
	304	dev->irq = irq;
	305	#endif
	306
	307	printk("\n");
	308
c3744138 BP	309	ret = alloc_subdevices(dev, 3);
c3744138 BP	310	if (ret < 0)
00a22431 DS	311	return ret;
	312
	313	s = dev->subdevices + 0;
	314	/* ao */
	315	s->type = COMEDI_SUBD_AO;
	316	s->subdev_flags = SDF_WRITABLE \| SDF_GROUND;
	317	s->n_chan = this_board->n_aochan;
	318	s->maxdata = 0xfff;
	319	s->len_chanlist = 1;
	320	s->insn_write = pcl726_ao_insn;
	321	s->insn_read = pcl726_ao_insn_read;
	322	s->range_table_list = devpriv->rangelist;
	323	for (i = 0; i < this_board->n_aochan; i++) {
	324	int j;
	325
	326	j = it->options[2 + 1];
	327	if ((j < 0) \|\| (j >= this_board->num_of_ranges)) {
0a85b6f0 MT	328	printk
	329	("Invalid range for channel %d! Must be 0<=%d<%d\n",
	330	i, j, this_board->num_of_ranges - 1);
00a22431 DS	331	j = 0;
	332	}
	333	devpriv->rangelist[i] = this_board->range_type_list[j];
	334	if (devpriv->rangelist[i]->range[0].min ==
0a85b6f0	335	-devpriv->rangelist[i]->range[0].max)
00a22431 DS	336	devpriv->bipolar[i] = 1; /* bipolar range */
	337	}
	338
	339	s = dev->subdevices + 1;
	340	/* di */
	341	if (!this_board->have_dio) {
	342	s->type = COMEDI_SUBD_UNUSED;
	343	} else {
	344	s->type = COMEDI_SUBD_DI;
	345	s->subdev_flags = SDF_READABLE \| SDF_GROUND;
	346	s->n_chan = 16;
	347	s->maxdata = 1;
	348	s->len_chanlist = 1;
	349	s->insn_bits = pcl726_di_insn_bits;
	350	s->range_table = &range_digital;
	351	}
	352
	353	s = dev->subdevices + 2;
	354	/* do */
	355	if (!this_board->have_dio) {
	356	s->type = COMEDI_SUBD_UNUSED;
	357	} else {
	358	s->type = COMEDI_SUBD_DO;
	359	s->subdev_flags = SDF_WRITABLE \| SDF_GROUND;
	360	s->n_chan = 16;
	361	s->maxdata = 1;
	362	s->len_chanlist = 1;
	363	s->insn_bits = pcl726_do_insn_bits;
	364	s->range_table = &range_digital;
	365	}
	366
	367	return 0;
	368	}
	369
da91b269	370	static int pcl726_detach(struct comedi_device *dev)
00a22431	371	{
2696fb57	372	/* printk("comedi%d: pcl726: remove\n",dev->minor); */
00a22431 DS	373
	374	#ifdef ACL6126_IRQ
	375	if (dev->irq) {
5f74ea14	376	free_irq(dev->irq, dev);
00a22431 DS	377	}
	378	#endif
	379
	380	if (dev->iobase)
	381	release_region(dev->iobase, this_board->io_range);
	382
	383	return 0;
	384	}