[deliverable/linux.git] / drivers / staging / comedi / drivers / pcl730.c

/*
 * comedi/drivers/pcl730.c
 * Driver for Advantech PCL-730 and clones
 * José Luis Sánchez
 */
/*
Driver: pcl730
Description: Advantech PCL-730 (& compatibles)
Author: José Luis Sánchez (jsanchezv@teleline.es)
Status: untested
Devices: [Advantech] PCL-730 (pcl730), [ICP] ISO-730 (iso730),
		 [Adlink] ACL-7130 (acl7130)

Interrupts are not supported.
The ACL-7130 card have an 8254 timer/counter not supported by this driver.
*/

#include "../comedidev.h"

#include <linux/ioport.h>

#define PCL730_SIZE		4
#define ACL7130_SIZE	8
#define PCL730_IDIO_LO	0	/* Isolated Digital I/O low byte (ID0-ID7) */
#define PCL730_IDIO_HI	1	/* Isolated Digital I/O high byte (ID8-ID15) */
#define PCL730_DIO_LO	2	/* TTL Digital I/O low byte (D0-D7) */
#define PCL730_DIO_HI	3	/* TTL Digital I/O high byte (D8-D15) */

static int pcl730_attach(struct comedi_device * dev, comedi_devconfig * it);
static int pcl730_detach(struct comedi_device * dev);

typedef struct {
	const char *name;	// board name
	unsigned int io_range;	// len of I/O space
} boardtype;

static const boardtype boardtypes[] = {
	{"pcl730", PCL730_SIZE,},
	{"iso730", PCL730_SIZE,},
	{"acl7130", ACL7130_SIZE,},
};

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

static struct comedi_driver driver_pcl730 = {
      driver_name:"pcl730",
      module:THIS_MODULE,
      attach:pcl730_attach,
      detach:pcl730_detach,
      board_name:&boardtypes[0].name,
      num_names:n_boardtypes,
      offset:sizeof(boardtype),
};

COMEDI_INITCLEANUP(driver_pcl730);

static int pcl730_do_insn(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[0] & 0x00ff)
		outb(s->state & 0xff,
			dev->iobase + ((unsigned long)s->private));
	if (data[0] & 0xff00)
		outb((s->state >> 8),
			dev->iobase + ((unsigned long)s->private) + 1);

	data[1] = s->state;

	return 2;
}

static int pcl730_di_insn(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 + ((unsigned long)s->private)) |
		(inb(dev->iobase + ((unsigned long)s->private) + 1) << 8);

	return 2;
}

static int pcl730_attach(struct comedi_device * dev, comedi_devconfig * it)
{
	struct comedi_subdevice *s;
	unsigned long iobase;
	unsigned int iorange;

	iobase = it->options[0];
	iorange = this_board->io_range;
	printk("comedi%d: pcl730: board=%s 0x%04lx ", dev->minor,
		this_board->name, iobase);
	if (!request_region(iobase, iorange, "pcl730")) {
		printk("I/O port conflict\n");
		return -EIO;
	}
	dev->board_name = this_board->name;
	dev->iobase = iobase;
	dev->irq = 0;

	if (alloc_subdevices(dev, 4) < 0)
		return -ENOMEM;

	s = dev->subdevices + 0;
	/* Isolated do */
	s->type = COMEDI_SUBD_DO;
	s->subdev_flags = SDF_WRITABLE;
	s->maxdata = 1;
	s->n_chan = 16;
	s->insn_bits = pcl730_do_insn;
	s->range_table = &range_digital;
	s->private = (void *)PCL730_IDIO_LO;

	s = dev->subdevices + 1;
	/* Isolated di */
	s->type = COMEDI_SUBD_DI;
	s->subdev_flags = SDF_READABLE;
	s->maxdata = 1;
	s->n_chan = 16;
	s->insn_bits = pcl730_di_insn;
	s->range_table = &range_digital;
	s->private = (void *)PCL730_IDIO_LO;

	s = dev->subdevices + 2;
	/* TTL do */
	s->type = COMEDI_SUBD_DO;
	s->subdev_flags = SDF_WRITABLE;
	s->maxdata = 1;
	s->n_chan = 16;
	s->insn_bits = pcl730_do_insn;
	s->range_table = &range_digital;
	s->private = (void *)PCL730_DIO_LO;

	s = dev->subdevices + 3;
	/* TTL di */
	s->type = COMEDI_SUBD_DI;
	s->subdev_flags = SDF_READABLE;
	s->maxdata = 1;
	s->n_chan = 16;
	s->insn_bits = pcl730_di_insn;
	s->range_table = &range_digital;
	s->private = (void *)PCL730_DIO_LO;

	printk("\n");

	return 0;
}

static int pcl730_detach(struct comedi_device * dev)
{
	printk("comedi%d: pcl730: remove\n", dev->minor);

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

	return 0;
}
Commit	Line	Data
96a2d5f0 JLS	1	/*
	2	* comedi/drivers/pcl730.c
	3	* Driver for Advantech PCL-730 and clones
	4	* José Luis Sánchez
	5	*/
	6	/*
	7	Driver: pcl730
	8	Description: Advantech PCL-730 (& compatibles)
	9	Author: José Luis Sánchez (jsanchezv@teleline.es)
	10	Status: untested
	11	Devices: [Advantech] PCL-730 (pcl730), [ICP] ISO-730 (iso730),
	12	[Adlink] ACL-7130 (acl7130)
	13
	14	Interrupts are not supported.
	15	The ACL-7130 card have an 8254 timer/counter not supported by this driver.
	16	*/
	17
	18	#include "../comedidev.h"
	19
	20	#include <linux/ioport.h>
	21
	22	#define PCL730_SIZE 4
	23	#define ACL7130_SIZE 8
	24	#define PCL730_IDIO_LO 0 /* Isolated Digital I/O low byte (ID0-ID7) */
	25	#define PCL730_IDIO_HI 1 /* Isolated Digital I/O high byte (ID8-ID15) */
	26	#define PCL730_DIO_LO 2 /* TTL Digital I/O low byte (D0-D7) */
	27	#define PCL730_DIO_HI 3 /* TTL Digital I/O high byte (D8-D15) */
	28
71b5f4f1 BP	29	static int pcl730_attach(struct comedi_device * dev, comedi_devconfig * it);
71b5f4f1 BP	30	static int pcl730_detach(struct comedi_device * dev);
96a2d5f0 JLS	31
	32	typedef struct {
	33	const char *name; // board name
	34	unsigned int io_range; // len of I/O space
	35	} boardtype;
	36
	37	static const boardtype boardtypes[] = {
	38	{"pcl730", PCL730_SIZE,},
	39	{"iso730", PCL730_SIZE,},
	40	{"acl7130", ACL7130_SIZE,},
	41	};
	42
	43	#define n_boardtypes (sizeof(boardtypes)/sizeof(boardtype))
	44	#define this_board ((const boardtype *)dev->board_ptr)
	45
139dfbdf	46	static struct comedi_driver driver_pcl730 = {
96a2d5f0 JLS	47	driver_name:"pcl730",
	48	module:THIS_MODULE,
	49	attach:pcl730_attach,
	50	detach:pcl730_detach,
	51	board_name:&boardtypes[0].name,
	52	num_names:n_boardtypes,
	53	offset:sizeof(boardtype),
	54	};
	55
	56	COMEDI_INITCLEANUP(driver_pcl730);
	57
34c43922	58	static int pcl730_do_insn(struct comedi_device * dev, struct comedi_subdevice * s,
90035c08	59	struct comedi_insn * insn, unsigned int * data)
96a2d5f0 JLS	60	{
	61	if (insn->n != 2)
	62	return -EINVAL;
	63
	64	if (data[0]) {
	65	s->state &= ~data[0];
	66	s->state \|= (data[0] & data[1]);
	67	}
	68	if (data[0] & 0x00ff)
	69	outb(s->state & 0xff,
	70	dev->iobase + ((unsigned long)s->private));
	71	if (data[0] & 0xff00)
	72	outb((s->state >> 8),
	73	dev->iobase + ((unsigned long)s->private) + 1);
	74
	75	data[1] = s->state;
	76
	77	return 2;
	78	}
	79
34c43922	80	static int pcl730_di_insn(struct comedi_device * dev, struct comedi_subdevice * s,
90035c08	81	struct comedi_insn * insn, unsigned int * data)
96a2d5f0 JLS	82	{
	83	if (insn->n != 2)
	84	return -EINVAL;
	85
	86	data[1] = inb(dev->iobase + ((unsigned long)s->private)) \|
	87	(inb(dev->iobase + ((unsigned long)s->private) + 1) << 8);
	88
	89	return 2;
	90	}
	91
71b5f4f1	92	static int pcl730_attach(struct comedi_device * dev, comedi_devconfig * it)
96a2d5f0	93	{
34c43922	94	struct comedi_subdevice *s;
96a2d5f0 JLS	95	unsigned long iobase;
	96	unsigned int iorange;
	97
	98	iobase = it->options[0];
	99	iorange = this_board->io_range;
	100	printk("comedi%d: pcl730: board=%s 0x%04lx ", dev->minor,
	101	this_board->name, iobase);
	102	if (!request_region(iobase, iorange, "pcl730")) {
	103	printk("I/O port conflict\n");
	104	return -EIO;
	105	}
	106	dev->board_name = this_board->name;
	107	dev->iobase = iobase;
	108	dev->irq = 0;
	109
	110	if (alloc_subdevices(dev, 4) < 0)
	111	return -ENOMEM;
	112
	113	s = dev->subdevices + 0;
	114	/* Isolated do */
	115	s->type = COMEDI_SUBD_DO;
	116	s->subdev_flags = SDF_WRITABLE;
	117	s->maxdata = 1;
	118	s->n_chan = 16;
	119	s->insn_bits = pcl730_do_insn;
	120	s->range_table = &range_digital;
	121	s->private = (void *)PCL730_IDIO_LO;
	122
	123	s = dev->subdevices + 1;
	124	/* Isolated di */
	125	s->type = COMEDI_SUBD_DI;
	126	s->subdev_flags = SDF_READABLE;
	127	s->maxdata = 1;
	128	s->n_chan = 16;
	129	s->insn_bits = pcl730_di_insn;
	130	s->range_table = &range_digital;
	131	s->private = (void *)PCL730_IDIO_LO;
	132
	133	s = dev->subdevices + 2;
	134	/* TTL do */
	135	s->type = COMEDI_SUBD_DO;
	136	s->subdev_flags = SDF_WRITABLE;
	137	s->maxdata = 1;
	138	s->n_chan = 16;
	139	s->insn_bits = pcl730_do_insn;
	140	s->range_table = &range_digital;
	141	s->private = (void *)PCL730_DIO_LO;
	142
	143	s = dev->subdevices + 3;
	144	/* TTL di */
	145	s->type = COMEDI_SUBD_DI;
	146	s->subdev_flags = SDF_READABLE;
	147	s->maxdata = 1;
	148	s->n_chan = 16;
	149	s->insn_bits = pcl730_di_insn;
	150	s->range_table = &range_digital;
	151	s->private = (void *)PCL730_DIO_LO;
	152
	153	printk("\n");
	154
	155	return 0;
	156	}
	157
71b5f4f1	158	static int pcl730_detach(struct comedi_device * dev)
96a2d5f0 JLS	159	{
	160	printk("comedi%d: pcl730: remove\n", dev->minor);
	161
	162	if (dev->iobase)
	163	release_region(dev->iobase, this_board->io_range);
	164
	165	return 0;
	166	}