Staging: comedi: add contec_pci_dio driver
driver for Contec PIO1616L digital I/O board From: Stefano Rivoir <s.rivoir@gts.it> Cc: David Schleef <ds@schleef.org> Cc: Frank Mori Hess <fmhess@users.sourceforge.net> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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/*
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comedi/drivers/contec_pci_dio.c
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COMEDI - Linux Control and Measurement Device Interface
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Copyright (C) 2000 David A. Schleef <ds@schleef.org>
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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: contec_pci_dio
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Description: Contec PIO1616L digital I/O board
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Devices: [Contec] PIO1616L (contec_pci_dio)
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Author: Stefano Rivoir <s.rivoir@gts.it>
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Updated: Wed, 27 Jun 2007 13:00:06 +0100
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Status: works
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Configuration Options:
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[0] - PCI bus of device (optional)
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[1] - PCI slot of device (optional)
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If bus/slot is not specified, the first supported
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PCI device found will be used.
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*/
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#include "../comedidev.h"
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#include "comedi_pci.h"
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typedef enum contec_model {
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PIO1616L = 0,
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} contec_model;
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typedef struct contec_board {
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const char *name;
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int model;
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int in_ports;
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int out_ports;
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int in_offs;
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int out_offs;
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int out_boffs;
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} contec_board;
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static const contec_board contec_boards[] = {
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{"PIO1616L", PIO1616L, 16, 16, 0, 2, 10},
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};
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#define PCI_DEVICE_ID_PIO1616L 0x8172
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static DEFINE_PCI_DEVICE_TABLE(contec_pci_table) = {
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{PCI_VENDOR_ID_CONTEC, PCI_DEVICE_ID_PIO1616L, PCI_ANY_ID, PCI_ANY_ID,
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0, 0, PIO1616L},
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{0}
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};
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MODULE_DEVICE_TABLE(pci, contec_pci_table);
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#define thisboard ((const contec_board *)dev->board_ptr)
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typedef struct {
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int data;
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struct pci_dev *pci_dev;
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} contec_private;
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#define devpriv ((contec_private *)dev->private)
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static int contec_attach(comedi_device * dev, comedi_devconfig * it);
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static int contec_detach(comedi_device * dev);
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static comedi_driver driver_contec = {
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driver_name:"contec_pci_dio",
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module:THIS_MODULE,
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attach:contec_attach,
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detach:contec_detach,
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};
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/* Classic digital IO */
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static int contec_di_insn_bits(comedi_device * dev, comedi_subdevice * s,
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comedi_insn * insn, lsampl_t * data);
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static int contec_do_insn_bits(comedi_device * dev, comedi_subdevice * s,
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comedi_insn * insn, lsampl_t * data);
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#if 0
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static int contec_cmdtest(comedi_device * dev, comedi_subdevice * s,
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comedi_cmd * cmd);
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static int contec_ns_to_timer(unsigned int *ns, int round);
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#endif
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static int contec_attach(comedi_device * dev, comedi_devconfig * it)
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{
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struct pci_dev *pcidev;
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comedi_subdevice *s;
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printk("comedi%d: contec: ", dev->minor);
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dev->board_name = thisboard->name;
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if (alloc_private(dev, sizeof(contec_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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for (pcidev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, NULL);
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pcidev != NULL;
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pcidev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pcidev)) {
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if (pcidev->vendor == PCI_VENDOR_ID_CONTEC &&
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pcidev->device == PCI_DEVICE_ID_PIO1616L) {
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if (it->options[0] || it->options[1]) {
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/* Check bus and slot. */
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if (it->options[0] != pcidev->bus->number ||
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it->options[1] !=
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PCI_SLOT(pcidev->devfn)) {
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continue;
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}
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}
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devpriv->pci_dev = pcidev;
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if (comedi_pci_enable(pcidev, "contec_pci_dio")) {
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printk("error enabling PCI device and request regions!\n");
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return -EIO;
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}
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dev->iobase = pci_resource_start(pcidev, 0);
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printk(" base addr %lx ", dev->iobase);
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dev->board_ptr = contec_boards + 0;
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s = dev->subdevices + 0;
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s->type = COMEDI_SUBD_DI;
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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 = contec_di_insn_bits;
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s = dev->subdevices + 1;
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s->type = COMEDI_SUBD_DO;
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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 = contec_do_insn_bits;
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printk("attached\n");
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return 1;
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}
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}
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printk("card not present!\n");
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return -EIO;
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}
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static int contec_detach(comedi_device * dev)
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{
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printk("comedi%d: contec: remove\n", dev->minor);
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if (devpriv && devpriv->pci_dev) {
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if (dev->iobase) {
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comedi_pci_disable(devpriv->pci_dev);
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}
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pci_dev_put(devpriv->pci_dev);
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}
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return 0;
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}
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#if 0
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static int contec_cmdtest(comedi_device * dev, comedi_subdevice * s,
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comedi_cmd * cmd)
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{
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printk("contec_cmdtest called\n");
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return 0;
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}
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static int contec_ns_to_timer(unsigned int *ns, int round)
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{
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return *ns;
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}
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#endif
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static int contec_do_insn_bits(comedi_device * dev, comedi_subdevice * s,
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comedi_insn * insn, lsampl_t * data)
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{
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printk("contec_do_insn_bits called\n");
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printk(" data: %d %d\n", data[0], data[1]);
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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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rt_printk(" out: %d on %lx\n", s->state,
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dev->iobase + thisboard->out_offs);
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outw(s->state, dev->iobase + thisboard->out_offs);
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}
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return 2;
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}
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static int contec_di_insn_bits(comedi_device * dev, comedi_subdevice * s,
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comedi_insn * insn, lsampl_t * data)
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{
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rt_printk("contec_di_insn_bits called\n");
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rt_printk(" data: %d %d\n", data[0], data[1]);
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if (insn->n != 2)
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return -EINVAL;
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data[1] = inw(dev->iobase + thisboard->in_offs);
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return 2;
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}
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COMEDI_PCI_INITCLEANUP(driver_contec, contec_pci_table);
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