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/*
* 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) */
struct pcl730_board {
const char *name; /* board name */
unsigned int io_range; /* len of I/O space */
};
#define this_board ((const struct pcl730_board *)dev->board_ptr)
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 void pcl730_detach(struct comedi_device *dev)
{
if (dev->iobase)
release_region(dev->iobase, this_board->io_range);
}
static const struct pcl730_board boardtypes[] = {
{ "pcl730", PCL730_SIZE, },
{ "iso730", PCL730_SIZE, },
{ "acl7130", ACL7130_SIZE, },
};
static struct comedi_driver pcl730_driver = {
.driver_name = "pcl730",
.module = THIS_MODULE,
.attach = pcl730_attach,
.detach = pcl730_detach,
.board_name = &boardtypes[0].name,
.num_names = ARRAY_SIZE(boardtypes),
.offset = sizeof(struct pcl730_board),
};
module_comedi_driver(pcl730_driver);
MODULE_AUTHOR("Comedi http://www.comedi.org");
MODULE_DESCRIPTION("Comedi low-level driver");
MODULE_LICENSE("GPL");
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