[deliverable/linux.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
};

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],},
};

struct pcl726_private {

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

static int pcl726_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s,
			  struct comedi_insn *insn, unsigned int *data)
{
	struct pcl726_private *devpriv = dev->private;
	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)
{
	struct pcl726_private *devpriv = dev->private;
	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)
{
	const struct pcl726_board *board = comedi_board(dev);

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

	return insn->n;
}

static int pcl726_do_insn_bits(struct comedi_device *dev,
			       struct comedi_subdevice *s,
			       struct comedi_insn *insn, unsigned int *data)
{
	const struct pcl726_board *board = comedi_board(dev);

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

	data[1] = s->state;

	return insn->n;
}

static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it)
{
	const struct pcl726_board *board = comedi_board(dev);
	struct pcl726_private *devpriv;
	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 = board->io_range;
	printk(KERN_WARNING "comedi%d: pcl726: board=%s, 0x%03lx ", dev->minor,
	       board->name, iobase);
	if (!request_region(iobase, iorange, "pcl726")) {
		printk(KERN_WARNING "I/O port conflict\n");
		return -EIO;
	}

	dev->iobase = iobase;

	dev->board_name = board->name;

	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
	if (!devpriv)
		return -ENOMEM;
	dev->private = devpriv;

	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(KERN_WARNING
					", 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(KERN_WARNING
						", 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 = comedi_alloc_subdevices(dev, 3);
	if (ret)
		return ret;

	s = &dev->subdevices[0];
	/* ao */
	s->type = COMEDI_SUBD_AO;
	s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
	s->n_chan = 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 < board->n_aochan; i++) {
		int j;

		j = it->options[2 + 1];
		if ((j < 0) || (j >= board->num_of_ranges)) {
			printk
			    ("Invalid range for channel %d! Must be 0<=%d<%d\n",
			     i, j, board->num_of_ranges - 1);
			j = 0;
		}
		devpriv->rangelist[i] = 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 (!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 (!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 void pcl726_detach(struct comedi_device *dev)
{
	const struct pcl726_board *board = comedi_board(dev);

#ifdef ACL6126_IRQ
	if (dev->irq)
		free_irq(dev->irq, dev);
#endif
	if (dev->iobase)
		release_region(dev->iobase, board->io_range);
}

static struct comedi_driver pcl726_driver = {
	.driver_name	= "pcl726",
	.module		= THIS_MODULE,
	.attach		= pcl726_attach,
	.detach		= pcl726_detach,
	.board_name	= &boardtypes[0].name,
	.num_names	= ARRAY_SIZE(boardtypes),
	.offset		= sizeof(struct pcl726_board),
};
module_comedi_driver(pcl726_driver);

MODULE_AUTHOR("Comedi http://www.comedi.org");
MODULE_DESCRIPTION("Comedi low-level driver");
MODULE_LICENSE("GPL");
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:
a69fba9e KAP	42	0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V,
a69fba9e KAP	43	4: 4-20mA, 5: unknown (external reference)
00a22431 DS	44
	45	Options for PCL-727:
	46	[0] - IO Base
	47	[2]...[13] - D/A output range for channel 1-12:
a69fba9e KAP	48	0: 0-5V, 1: 0-10V, 2: +/-5V,
a69fba9e KAP	49	3: 4-20mA
00a22431 DS	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:
a69fba9e KAP	54	0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V,
a69fba9e KAP	55	4: 4-20mA, 5: 0-20mA
00a22431 DS	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:
a69fba9e KAP	61	0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V,
a69fba9e KAP	62	4: 4-20mA
00a22431 DS	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
747887a6 BP	114	struct pcl726_board {
747887a6 BP	115
2696fb57 BP	116	const char name; / driver name */
	117	int n_aochan; /* num of D/A chans */
	118	int num_of_ranges; /* num of ranges */
	119	unsigned int IRQbits; /* allowed interrupts */
	120	unsigned int io_range; /* len of IO space */
	121	char have_dio; /* 1=card have DI/DO ports */
	122	int di_hi; /* ports for DI/DO operations */
00a22431 DS	123	int di_lo;
	124	int do_hi;
	125	int do_lo;
a69fba9e KAP	126	const struct comedi_lrange const range_type_list;
a69fba9e KAP	127	/* list of supported ranges */
747887a6 BP	128	};
747887a6 BP	129
747887a6	130	static const struct pcl726_board boardtypes[] = {
00a22431	131	{"pcl726", 6, 6, 0x0000, PCL726_SIZE, 1,
0a85b6f0 MT	132	PCL726_DI_HI, PCL726_DI_LO, PCL726_DO_HI, PCL726_DO_LO,
0a85b6f0 MT	133	&rangelist_726[0],},
00a22431	134	{"pcl727", 12, 4, 0x0000, PCL727_SIZE, 1,
0a85b6f0 MT	135	PCL727_DI_HI, PCL727_DI_LO, PCL727_DO_HI, PCL727_DO_LO,
0a85b6f0 MT	136	&rangelist_727[0],},
00a22431	137	{"pcl728", 2, 6, 0x0000, PCL728_SIZE, 0,
0a85b6f0 MT	138	0, 0, 0, 0,
0a85b6f0 MT	139	&rangelist_728[0],},
00a22431	140	{"acl6126", 6, 5, 0x96e8, PCL726_SIZE, 1,
0a85b6f0 MT	141	PCL726_DI_HI, PCL726_DI_LO, PCL726_DO_HI, PCL726_DO_LO,
0a85b6f0 MT	142	&rangelist_726[0],},
00a22431	143	{"acl6128", 2, 6, 0x0000, PCL728_SIZE, 0,
0a85b6f0 MT	144	0, 0, 0, 0,
0a85b6f0 MT	145	&rangelist_728[0],},
00a22431 DS	146	};
00a22431 DS	147
bf7f0610 BP	148	struct pcl726_private {
bf7f0610 BP	149
00a22431	150	int bipolar[12];
9ced1de6	151	const struct comedi_lrange *rangelist[12];
790c5541	152	unsigned int ao_readback[12];
bf7f0610 BP	153	};
bf7f0610 BP	154
da91b269	155	static int pcl726_ao_insn(struct comedi_device dev, struct comedi_subdevice s,
0a85b6f0	156	struct comedi_insn insn, unsigned int data)
00a22431	157	{
9a1a6cf8	158	struct pcl726_private *devpriv = dev->private;
00a22431 DS	159	int hi, lo;
	160	int n;
	161	int chan = CR_CHAN(insn->chanspec);
	162
	163	for (n = 0; n < insn->n; n++) {
	164	lo = data[n] & 0xff;
	165	hi = (data[n] >> 8) & 0xf;
	166	if (devpriv->bipolar[chan])
	167	hi ^= 0x8;
	168	/*
	169	* the programming info did not say which order
	170	* to write bytes. switch the order of the next
	171	* two lines if you get glitches.
	172	*/
	173	outb(hi, dev->iobase + PCL726_DAC0_HI + 2 * chan);
	174	outb(lo, dev->iobase + PCL726_DAC0_LO + 2 * chan);
	175	devpriv->ao_readback[chan] = data[n];
	176	}
	177
	178	return n;
	179	}
	180
0a85b6f0 MT	181	static int pcl726_ao_insn_read(struct comedi_device *dev,
	182	struct comedi_subdevice *s,
	183	struct comedi_insn insn, unsigned int data)
00a22431	184	{
9a1a6cf8	185	struct pcl726_private *devpriv = dev->private;
00a22431 DS	186	int chan = CR_CHAN(insn->chanspec);
	187	int n;
	188
a69fba9e	189	for (n = 0; n < insn->n; n++)
00a22431	190	data[n] = devpriv->ao_readback[chan];
00a22431 DS	191	return n;
	192	}
	193
0a85b6f0 MT	194	static int pcl726_di_insn_bits(struct comedi_device *dev,
	195	struct comedi_subdevice *s,
	196	struct comedi_insn insn, unsigned int data)
00a22431	197	{
d877269e HS	198	const struct pcl726_board *board = comedi_board(dev);
d877269e HS	199
d877269e HS	200	data[1] = inb(dev->iobase + board->di_lo) \|
d877269e HS	201	(inb(dev->iobase + board->di_hi) << 8);
00a22431	202
a2714e3e	203	return insn->n;
00a22431 DS	204	}
00a22431 DS	205
0a85b6f0 MT	206	static int pcl726_do_insn_bits(struct comedi_device *dev,
	207	struct comedi_subdevice *s,
	208	struct comedi_insn insn, unsigned int data)
00a22431	209	{
d877269e HS	210	const struct pcl726_board *board = comedi_board(dev);
d877269e HS	211
00a22431 DS	212	if (data[0]) {
	213	s->state &= ~data[0];
	214	s->state \|= data[0] & data[1];
	215	}
	216	if (data[1] & 0x00ff)
d877269e	217	outb(s->state & 0xff, dev->iobase + board->do_lo);
00a22431	218	if (data[1] & 0xff00)
d877269e	219	outb((s->state >> 8), dev->iobase + board->do_hi);
00a22431 DS	220
	221	data[1] = s->state;
	222
a2714e3e	223	return insn->n;
00a22431 DS	224	}
00a22431 DS	225
da91b269	226	static int pcl726_attach(struct comedi_device dev, struct comedi_devconfig it)
00a22431	227	{
d877269e	228	const struct pcl726_board *board = comedi_board(dev);
9a1a6cf8	229	struct pcl726_private *devpriv;
34c43922	230	struct comedi_subdevice *s;
00a22431 DS	231	unsigned long iobase;
	232	unsigned int iorange;
	233	int ret, i;
	234	#ifdef ACL6126_IRQ
	235	unsigned int irq;
	236	#endif
	237
	238	iobase = it->options[0];
d877269e	239	iorange = board->io_range;
a69fba9e	240	printk(KERN_WARNING "comedi%d: pcl726: board=%s, 0x%03lx ", dev->minor,
d877269e	241	board->name, iobase);
00a22431	242	if (!request_region(iobase, iorange, "pcl726")) {
a69fba9e	243	printk(KERN_WARNING "I/O port conflict\n");
00a22431 DS	244	return -EIO;
	245	}
	246
	247	dev->iobase = iobase;
	248
d877269e	249	dev->board_name = board->name;
00a22431	250
c34fa261 HS	251	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
	252	if (!devpriv)
	253	return -ENOMEM;
	254	dev->private = devpriv;
00a22431 DS	255
	256	for (i = 0; i < 12; i++) {
	257	devpriv->bipolar[i] = 0;
	258	devpriv->rangelist[i] = &range_unknown;
	259	}
	260
	261	#ifdef ACL6126_IRQ
	262	irq = 0;
	263	if (boardtypes[board].IRQbits != 0) { /* board support IRQ */
	264	irq = it->options[1];
	265	devpriv->first_chan = 2;
	266	if (irq) { /* we want to use IRQ */
	267	if (((1 << irq) & boardtypes[board].IRQbits) == 0) {
a69fba9e KAP	268	printk(KERN_WARNING
	269	", IRQ %d is out of allowed range,"
	270	" DISABLING IT", irq);
00a22431 DS	271	irq = 0; /* Bad IRQ */
00a22431 DS	272	} else {
5f74ea14	273	if (request_irq(irq, interrupt_pcl818, 0,
00a22431	274	"pcl726", dev)) {
a69fba9e KAP	275	printk(KERN_WARNING
	276	", unable to allocate IRQ %d,"
	277	" DISABLING IT", irq);
00a22431 DS	278	irq = 0; /* Can't use IRQ */
00a22431 DS	279	} else {
5f74ea14	280	printk(", irq=%d", irq);
00a22431 DS	281	}
	282	}
	283	}
	284	}
	285
	286	dev->irq = irq;
	287	#endif
	288
	289	printk("\n");
	290
2f0b9d08	291	ret = comedi_alloc_subdevices(dev, 3);
8b6c5694	292	if (ret)
00a22431 DS	293	return ret;
00a22431 DS	294
95ce832a	295	s = &dev->subdevices[0];
00a22431 DS	296	/* ao */
	297	s->type = COMEDI_SUBD_AO;
	298	s->subdev_flags = SDF_WRITABLE \| SDF_GROUND;
d877269e	299	s->n_chan = board->n_aochan;
00a22431 DS	300	s->maxdata = 0xfff;
	301	s->len_chanlist = 1;
	302	s->insn_write = pcl726_ao_insn;
	303	s->insn_read = pcl726_ao_insn_read;
	304	s->range_table_list = devpriv->rangelist;
d877269e	305	for (i = 0; i < board->n_aochan; i++) {
00a22431 DS	306	int j;
	307
	308	j = it->options[2 + 1];
d877269e	309	if ((j < 0) \|\| (j >= board->num_of_ranges)) {
0a85b6f0 MT	310	printk
0a85b6f0 MT	311	("Invalid range for channel %d! Must be 0<=%d<%d\n",
d877269e	312	i, j, board->num_of_ranges - 1);
00a22431 DS	313	j = 0;
00a22431 DS	314	}
d877269e	315	devpriv->rangelist[i] = board->range_type_list[j];
00a22431	316	if (devpriv->rangelist[i]->range[0].min ==
0a85b6f0	317	-devpriv->rangelist[i]->range[0].max)
00a22431 DS	318	devpriv->bipolar[i] = 1; /* bipolar range */
	319	}
	320
95ce832a	321	s = &dev->subdevices[1];
00a22431	322	/* di */
d877269e	323	if (!board->have_dio) {
00a22431 DS	324	s->type = COMEDI_SUBD_UNUSED;
	325	} else {
	326	s->type = COMEDI_SUBD_DI;
	327	s->subdev_flags = SDF_READABLE \| SDF_GROUND;
	328	s->n_chan = 16;
	329	s->maxdata = 1;
	330	s->len_chanlist = 1;
	331	s->insn_bits = pcl726_di_insn_bits;
	332	s->range_table = &range_digital;
	333	}
	334
95ce832a	335	s = &dev->subdevices[2];
00a22431	336	/* do */
d877269e	337	if (!board->have_dio) {
00a22431 DS	338	s->type = COMEDI_SUBD_UNUSED;
	339	} else {
	340	s->type = COMEDI_SUBD_DO;
	341	s->subdev_flags = SDF_WRITABLE \| SDF_GROUND;
	342	s->n_chan = 16;
	343	s->maxdata = 1;
	344	s->len_chanlist = 1;
	345	s->insn_bits = pcl726_do_insn_bits;
	346	s->range_table = &range_digital;
	347	}
	348
	349	return 0;
	350	}
	351
484ecc95	352	static void pcl726_detach(struct comedi_device *dev)
00a22431	353	{
d877269e HS	354	const struct pcl726_board *board = comedi_board(dev);
d877269e HS	355
00a22431	356	#ifdef ACL6126_IRQ
a69fba9e	357	if (dev->irq)
5f74ea14	358	free_irq(dev->irq, dev);
00a22431	359	#endif
00a22431	360	if (dev->iobase)
d877269e	361	release_region(dev->iobase, board->io_range);
00a22431	362	}
90f703d3	363
294f930d	364	static struct comedi_driver pcl726_driver = {
2bc62b67 HS	365	.driver_name = "pcl726",
	366	.module = THIS_MODULE,
	367	.attach = pcl726_attach,
	368	.detach = pcl726_detach,
	369	.board_name = &boardtypes[0].name,
	370	.num_names = ARRAY_SIZE(boardtypes),
	371	.offset = sizeof(struct pcl726_board),
	372	};
294f930d	373	module_comedi_driver(pcl726_driver);
2bc62b67	374
90f703d3 AT	375	MODULE_AUTHOR("Comedi http://www.comedi.org");
	376	MODULE_DESCRIPTION("Comedi low-level driver");
	377	MODULE_LICENSE("GPL");