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/*
* comedi/drivers/acl7225b.c
* Driver for Adlink NuDAQ ACL-7225b and clones
* José Luis Sánchez
*/
/*
Driver: acl7225b
Description: Adlink NuDAQ ACL-7225b & compatibles
Author: José Luis Sánchez (jsanchezv@teleline.es)
Status: testing
Devices: [Adlink] ACL-7225b (acl7225b), [ICP] P16R16DIO (p16r16dio)
*/
#include "../comedidev.h"
#include <linux/ioport.h>
#define ACL7225_RIO_LO 0 /* Relays input/output low byte (R0-R7) */
#define ACL7225_RIO_HI 1 /* Relays input/output high byte (R8-R15) */
#define ACL7225_DI_LO 2 /* Digital input low byte (DI0-DI7) */
#define ACL7225_DI_HI 3 /* Digital input high byte (DI8-DI15) */
struct acl7225b_boardinfo {
const char *name;
int io_range;
};
static const struct acl7225b_boardinfo acl7225b_boards[] = {
{
.name = "acl7225b",
.io_range = 8, /* only 4 are used */
}, {
.name = "p16r16dio",
.io_range = 4,
},
};
static int acl7225b_do_insn_bits(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned int *data)
{
unsigned long reg = (unsigned long)s->private;
unsigned int mask = data[0];
unsigned int bits = data[1];
if (mask) {
s->state &= ~mask;
s->state |= (bits & mask);
if (mask & 0x00ff)
outb(s->state & 0xff, dev->iobase + reg);
if (mask & 0xff00)
outb((s->state >> 8), dev->iobase + reg + 1);
}
data[1] = s->state;
return insn->n;
}
static int acl7225b_di_insn_bits(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned int *data)
{
unsigned long reg = (unsigned long)s->private;
data[1] = inb(dev->iobase + reg) |
(inb(dev->iobase + reg + 1) << 8);
return insn->n;
}
static int acl7225b_attach(struct comedi_device *dev,
struct comedi_devconfig *it)
{
const struct acl7225b_boardinfo *board = comedi_board(dev);
struct comedi_subdevice *s;
int ret;
ret = comedi_request_region(dev, it->options[0], board->io_range);
if (ret)
return ret;
ret = comedi_alloc_subdevices(dev, 3);
if (ret)
return ret;
s = &dev->subdevices[0];
/* Relays outputs */
s->type = COMEDI_SUBD_DO;
s->subdev_flags = SDF_WRITABLE;
s->maxdata = 1;
s->n_chan = 16;
s->insn_bits = acl7225b_do_insn_bits;
s->range_table = &range_digital;
s->private = (void *)ACL7225_RIO_LO;
s = &dev->subdevices[1];
/* Relays status */
s->type = COMEDI_SUBD_DI;
s->subdev_flags = SDF_READABLE;
s->maxdata = 1;
s->n_chan = 16;
s->insn_bits = acl7225b_di_insn_bits;
s->range_table = &range_digital;
s->private = (void *)ACL7225_RIO_LO;
s = &dev->subdevices[2];
/* Isolated digital inputs */
s->type = COMEDI_SUBD_DI;
s->subdev_flags = SDF_READABLE;
s->maxdata = 1;
s->n_chan = 16;
s->insn_bits = acl7225b_di_insn_bits;
s->range_table = &range_digital;
s->private = (void *)ACL7225_DI_LO;
return 0;
}
static struct comedi_driver acl7225b_driver = {
.driver_name = "acl7225b",
.module = THIS_MODULE,
.attach = acl7225b_attach,
.detach = comedi_legacy_detach,
.board_name = &acl7225b_boards[0].name,
.num_names = ARRAY_SIZE(acl7225b_boards),
.offset = sizeof(struct acl7225b_boardinfo),
};
module_comedi_driver(acl7225b_driver);
MODULE_DESCRIPTION("Comedi: NuDAQ ACL-7225B, 16 Relay & 16 Isolated DI Card");
MODULE_AUTHOR("Comedi http://www.comedi.org");
MODULE_LICENSE("GPL");
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