[GitHub/mt8127/android_kernel_alcatel_ttab.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,
			 struct comedi_devconfig *it);
static int pcl730_detach(struct comedi_device *dev);

struct pcl730_board {

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

static const struct pcl730_board boardtypes[] = {
	{"pcl730", PCL730_SIZE,},
	{"iso730", PCL730_SIZE,},
	{"acl7130", ACL7130_SIZE,},
};

#define n_boardtypes (sizeof(boardtypes)/sizeof(struct pcl730_board))
#define this_board ((const struct pcl730_board *)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(struct pcl730_board),
};

static int __init driver_pcl730_init_module(void)
{
	return comedi_driver_register(&driver_pcl730);
}

static void __exit driver_pcl730_cleanup_module(void)
{
	comedi_driver_unregister(&driver_pcl730);
}

module_init(driver_pcl730_init_module);
module_exit(driver_pcl730_cleanup_module);

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, struct comedi_devconfig *it)
{
	struct comedi_subdevice *s;
	unsigned long iobase;
	unsigned int iorange;

	iobase = it->options[0];
	iorange = this_board->io_range;
	printk(KERN_INFO "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(KERN_INFO "\n");

	return 0;
}

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

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

	return 0;
}

MODULE_AUTHOR("Comedi http://www.comedi.org");
MODULE_DESCRIPTION("Comedi low-level driver");
MODULE_LICENSE("GPL");
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
0a85b6f0 MT	29	static int pcl730_attach(struct comedi_device *dev,
0a85b6f0 MT	30	struct comedi_devconfig *it);
da91b269	31	static int pcl730_detach(struct comedi_device *dev);
96a2d5f0	32
292090dc BP	33	struct pcl730_board {
292090dc BP	34
2696fb57 BP	35	const char name; / board name */
2696fb57 BP	36	unsigned int io_range; /* len of I/O space */
292090dc BP	37	};
292090dc BP	38
292090dc	39	static const struct pcl730_board boardtypes[] = {
96a2d5f0 JLS	40	{"pcl730", PCL730_SIZE,},
	41	{"iso730", PCL730_SIZE,},
	42	{"acl7130", ACL7130_SIZE,},
	43	};
	44
292090dc BP	45	#define n_boardtypes (sizeof(boardtypes)/sizeof(struct pcl730_board))
292090dc BP	46	#define this_board ((const struct pcl730_board *)dev->board_ptr)
96a2d5f0	47
139dfbdf	48	static struct comedi_driver driver_pcl730 = {
68c3dbff BP	49	.driver_name = "pcl730",
	50	.module = THIS_MODULE,
	51	.attach = pcl730_attach,
	52	.detach = pcl730_detach,
	53	.board_name = &boardtypes[0].name,
	54	.num_names = n_boardtypes,
	55	.offset = sizeof(struct pcl730_board),
96a2d5f0 JLS	56	};
96a2d5f0 JLS	57
7114a280 AT	58	static int __init driver_pcl730_init_module(void)
	59	{
	60	return comedi_driver_register(&driver_pcl730);
	61	}
	62
	63	static void __exit driver_pcl730_cleanup_module(void)
	64	{
	65	comedi_driver_unregister(&driver_pcl730);
	66	}
	67
	68	module_init(driver_pcl730_init_module);
	69	module_exit(driver_pcl730_cleanup_module);
96a2d5f0	70
da91b269	71	static int pcl730_do_insn(struct comedi_device dev, struct comedi_subdevice s,
0a85b6f0	72	struct comedi_insn insn, unsigned int data)
96a2d5f0 JLS	73	{
	74	if (insn->n != 2)
	75	return -EINVAL;
	76
	77	if (data[0]) {
	78	s->state &= ~data[0];
	79	s->state \|= (data[0] & data[1]);
	80	}
	81	if (data[0] & 0x00ff)
	82	outb(s->state & 0xff,
0a85b6f0	83	dev->iobase + ((unsigned long)s->private));
96a2d5f0 JLS	84	if (data[0] & 0xff00)
96a2d5f0 JLS	85	outb((s->state >> 8),
0a85b6f0	86	dev->iobase + ((unsigned long)s->private) + 1);
96a2d5f0 JLS	87
	88	data[1] = s->state;
	89
	90	return 2;
	91	}
	92
da91b269	93	static int pcl730_di_insn(struct comedi_device dev, struct comedi_subdevice s,
0a85b6f0	94	struct comedi_insn insn, unsigned int data)
96a2d5f0 JLS	95	{
	96	if (insn->n != 2)
	97	return -EINVAL;
	98
	99	data[1] = inb(dev->iobase + ((unsigned long)s->private)) \|
0a85b6f0	100	(inb(dev->iobase + ((unsigned long)s->private) + 1) << 8);
96a2d5f0 JLS	101
	102	return 2;
	103	}
	104
da91b269	105	static int pcl730_attach(struct comedi_device dev, struct comedi_devconfig it)
96a2d5f0	106	{
34c43922	107	struct comedi_subdevice *s;
96a2d5f0 JLS	108	unsigned long iobase;
	109	unsigned int iorange;
	110
	111	iobase = it->options[0];
	112	iorange = this_board->io_range;
615d5b6c	113	printk(KERN_INFO "comedi%d: pcl730: board=%s 0x%04lx ", dev->minor,
0a85b6f0	114	this_board->name, iobase);
96a2d5f0 JLS	115	if (!request_region(iobase, iorange, "pcl730")) {
	116	printk("I/O port conflict\n");
	117	return -EIO;
	118	}
	119	dev->board_name = this_board->name;
	120	dev->iobase = iobase;
	121	dev->irq = 0;
	122
	123	if (alloc_subdevices(dev, 4) < 0)
	124	return -ENOMEM;
	125
	126	s = dev->subdevices + 0;
	127	/* Isolated do */
	128	s->type = COMEDI_SUBD_DO;
	129	s->subdev_flags = SDF_WRITABLE;
	130	s->maxdata = 1;
	131	s->n_chan = 16;
	132	s->insn_bits = pcl730_do_insn;
	133	s->range_table = &range_digital;
	134	s->private = (void *)PCL730_IDIO_LO;
	135
	136	s = dev->subdevices + 1;
	137	/* Isolated di */
	138	s->type = COMEDI_SUBD_DI;
	139	s->subdev_flags = SDF_READABLE;
	140	s->maxdata = 1;
	141	s->n_chan = 16;
	142	s->insn_bits = pcl730_di_insn;
	143	s->range_table = &range_digital;
	144	s->private = (void *)PCL730_IDIO_LO;
	145
	146	s = dev->subdevices + 2;
	147	/* TTL do */
	148	s->type = COMEDI_SUBD_DO;
	149	s->subdev_flags = SDF_WRITABLE;
	150	s->maxdata = 1;
	151	s->n_chan = 16;
	152	s->insn_bits = pcl730_do_insn;
	153	s->range_table = &range_digital;
	154	s->private = (void *)PCL730_DIO_LO;
	155
	156	s = dev->subdevices + 3;
	157	/* TTL di */
	158	s->type = COMEDI_SUBD_DI;
	159	s->subdev_flags = SDF_READABLE;
	160	s->maxdata = 1;
	161	s->n_chan = 16;
	162	s->insn_bits = pcl730_di_insn;
	163	s->range_table = &range_digital;
	164	s->private = (void *)PCL730_DIO_LO;
	165
615d5b6c	166	printk(KERN_INFO "\n");
96a2d5f0 JLS	167
	168	return 0;
	169	}
	170
da91b269	171	static int pcl730_detach(struct comedi_device *dev)
96a2d5f0	172	{
615d5b6c	173	printk(KERN_INFO "comedi%d: pcl730: remove\n", dev->minor);
96a2d5f0 JLS	174
	175	if (dev->iobase)
	176	release_region(dev->iobase, this_board->io_range);
	177
	178	return 0;
	179	}
90f703d3 AT	180
	181	MODULE_AUTHOR("Comedi http://www.comedi.org");
	182	MODULE_DESCRIPTION("Comedi low-level driver");
	183	MODULE_LICENSE("GPL");