188 lines
4.5 KiB
C
188 lines
4.5 KiB
C
/*
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comedi/drivers/aio_iiro_16.c
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Driver for Acces I/O Products PC-104 AIO-IIRO-16 Digital I/O board
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Copyright (C) 2006 C&C Technologies, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/*
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Driver: aio_iiro_16
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Description: Acces I/O Products PC-104 IIRO16 Relay And Isolated Input Board
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Author: Zachary Ware <zach.ware@cctechnol.com>
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Devices:
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[Acces I/O] PC-104 AIO12-8
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Status: experimental
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Configuration Options:
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[0] - I/O port base address
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*/
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#include "../comedidev.h"
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#include <linux/ioport.h>
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#define AIO_IIRO_16_SIZE 0x08
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#define AIO_IIRO_16_RELAY_0_7 0x00
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#define AIO_IIRO_16_INPUT_0_7 0x01
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#define AIO_IIRO_16_IRQ 0x02
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#define AIO_IIRO_16_RELAY_8_15 0x04
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#define AIO_IIRO_16_INPUT_8_15 0x05
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struct aio_iiro_16_board {
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const char *name;
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int do_;
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int di;
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};
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static const struct aio_iiro_16_board aio_iiro_16_boards[] = {
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{
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.name = "aio_iiro_16",
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.di = 16,
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.do_ = 16},
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};
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#define thisboard ((const struct aio_iiro_16_board *) dev->board_ptr)
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struct aio_iiro_16_private {
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int data;
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struct pci_dev *pci_dev;
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unsigned int ao_readback[2];
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};
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#define devpriv ((struct aio_iiro_16_private *) dev->private)
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static int aio_iiro_16_attach(struct comedi_device *dev,
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struct comedi_devconfig *it);
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static int aio_iiro_16_detach(struct comedi_device *dev);
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static struct comedi_driver driver_aio_iiro_16 = {
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.driver_name = "aio_iiro_16",
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.module = THIS_MODULE,
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.attach = aio_iiro_16_attach,
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.detach = aio_iiro_16_detach,
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.board_name = &aio_iiro_16_boards[0].name,
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.offset = sizeof(struct aio_iiro_16_board),
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.num_names = ARRAY_SIZE(aio_iiro_16_boards),
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};
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static int aio_iiro_16_dio_insn_bits_read(struct comedi_device *dev,
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struct comedi_subdevice *s,
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struct comedi_insn *insn,
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unsigned int *data);
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static int aio_iiro_16_dio_insn_bits_write(struct comedi_device *dev,
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struct comedi_subdevice *s,
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struct comedi_insn *insn,
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unsigned int *data);
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static int aio_iiro_16_attach(struct comedi_device *dev,
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struct comedi_devconfig *it)
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{
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int iobase;
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struct comedi_subdevice *s;
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printk("comedi%d: aio_iiro_16: ", dev->minor);
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dev->board_name = thisboard->name;
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iobase = it->options[0];
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if (!request_region(iobase, AIO_IIRO_16_SIZE, dev->board_name)) {
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printk("I/O port conflict");
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return -EIO;
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}
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dev->iobase = iobase;
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if (alloc_private(dev, sizeof(struct aio_iiro_16_private)) < 0)
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return -ENOMEM;
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if (alloc_subdevices(dev, 2) < 0)
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return -ENOMEM;
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s = dev->subdevices + 0;
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s->type = COMEDI_SUBD_DIO;
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s->subdev_flags = SDF_WRITABLE;
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s->n_chan = 16;
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s->maxdata = 1;
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s->range_table = &range_digital;
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s->insn_bits = aio_iiro_16_dio_insn_bits_write;
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s = dev->subdevices + 1;
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s->type = COMEDI_SUBD_DIO;
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s->subdev_flags = SDF_READABLE;
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s->n_chan = 16;
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s->maxdata = 1;
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s->range_table = &range_digital;
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s->insn_bits = aio_iiro_16_dio_insn_bits_read;
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printk("attached\n");
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return 1;
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}
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static int aio_iiro_16_detach(struct comedi_device *dev)
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{
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printk("comedi%d: aio_iiro_16: remove\n", dev->minor);
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if (dev->iobase)
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release_region(dev->iobase, AIO_IIRO_16_SIZE);
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return 0;
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}
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static int aio_iiro_16_dio_insn_bits_write(struct comedi_device *dev,
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struct comedi_subdevice *s,
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struct comedi_insn *insn,
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unsigned int *data)
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{
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if (insn->n != 2)
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return -EINVAL;
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if (data[0]) {
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s->state &= ~data[0];
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s->state |= data[0] & data[1];
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outb(s->state & 0xff, dev->iobase + AIO_IIRO_16_RELAY_0_7);
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outb((s->state >> 8) & 0xff,
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dev->iobase + AIO_IIRO_16_RELAY_8_15);
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}
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data[1] = s->state;
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return 2;
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}
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static int aio_iiro_16_dio_insn_bits_read(struct comedi_device *dev,
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struct comedi_subdevice *s,
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struct comedi_insn *insn,
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unsigned int *data)
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{
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if (insn->n != 2)
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return -EINVAL;
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data[1] = 0;
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data[1] |= inb(dev->iobase + AIO_IIRO_16_INPUT_0_7);
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data[1] |= inb(dev->iobase + AIO_IIRO_16_INPUT_8_15) << 8;
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return 2;
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}
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COMEDI_INITCLEANUP(driver_aio_iiro_16);
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