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Staging: comedi: add adl_pci7296 driver
Driver for the Adlink PCI-7296 96 ch. digital io board From: Jon Grierson <jd@renko.co.uk> 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>
This commit is contained in:
Jon Grierson
Greg Kroah-Hartman
parent
578c018354
commit
bb71f8b315
173
drivers/staging/comedi/drivers/adl_pci7296.c
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173
drivers/staging/comedi/drivers/adl_pci7296.c
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/*
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comedi/drivers/adl_pci7296.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: adl_pci7296
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Description: Driver for the Adlink PCI-7296 96 ch. digital io board
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Devices: [ADLink] PCI-7296 (adl_pci7296)
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Author: Jon Grierson <jd@renko.co.uk>
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Updated: Mon, 14 Apr 2008 15:05:56 +0100
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Status: testing
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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 <linux/kernel.h>
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#include "comedi_pci.h"
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#include "8255.h"
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// #include "8253.h"
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#define PORT1A 0
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#define PORT2A 4
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#define PORT3A 8
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#define PORT4A 12
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#define PCI_DEVICE_ID_PCI7296 0x7296
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static DEFINE_PCI_DEVICE_TABLE(adl_pci7296_pci_table) = {
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{PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI7296, PCI_ANY_ID, PCI_ANY_ID, 0,
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0, 0},
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{0}
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};
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MODULE_DEVICE_TABLE(pci, adl_pci7296_pci_table);
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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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} adl_pci7296_private;
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#define devpriv ((adl_pci7296_private *)dev->private)
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static int adl_pci7296_attach(comedi_device * dev, comedi_devconfig * it);
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static int adl_pci7296_detach(comedi_device * dev);
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static comedi_driver driver_adl_pci7296 = {
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driver_name:"adl_pci7296",
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module:THIS_MODULE,
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attach:adl_pci7296_attach,
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detach:adl_pci7296_detach,
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};
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static int adl_pci7296_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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int bus, slot;
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int ret;
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printk("comedi: attempt to attach...\n");
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printk("comedi%d: adl_pci7432\n", dev->minor);
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dev->board_name = "pci7432";
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bus = it->options[0];
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slot = it->options[1];
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if (alloc_private(dev, sizeof(adl_pci7296_private)) < 0)
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return -ENOMEM;
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if (alloc_subdevices(dev, 4) < 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_ADLINK &&
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pcidev->device == PCI_DEVICE_ID_PCI7296) {
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if (bus || slot) {
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/* requested particular bus/slot */
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if (pcidev->bus->number != bus
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|| PCI_SLOT(pcidev->devfn) != slot) {
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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, "adl_pci7296") < 0) {
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printk("comedi%d: Failed to enable PCI device and request regions\n", dev->minor);
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return -EIO;
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}
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dev->iobase = pci_resource_start(pcidev, 2);
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printk("comedi: base addr %4lx\n", dev->iobase);
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// four 8255 digital io subdevices
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s = dev->subdevices + 0;
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subdev_8255_init(dev, s, NULL,
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(unsigned long)(dev->iobase));
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s = dev->subdevices + 1;
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ret = subdev_8255_init(dev, s, NULL,
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(unsigned long)(dev->iobase + PORT2A));
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if (ret < 0)
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return ret;
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s = dev->subdevices + 2;
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ret = subdev_8255_init(dev, s, NULL,
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(unsigned long)(dev->iobase + PORT3A));
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if (ret < 0)
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return ret;
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s = dev->subdevices + 3;
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ret = subdev_8255_init(dev, s, NULL,
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(unsigned long)(dev->iobase + PORT4A));
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if (ret < 0)
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return ret;
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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("comedi%d: no supported board found! (req. bus/slot : %d/%d)\n",
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dev->minor, bus, slot);
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return -EIO;
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}
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static int adl_pci7296_detach(comedi_device * dev)
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{
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printk("comedi%d: pci7432: 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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// detach four 8255 digital io subdevices
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if (dev->subdevices) {
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subdev_8255_cleanup(dev, dev->subdevices + 0);
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subdev_8255_cleanup(dev, dev->subdevices + 1);
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subdev_8255_cleanup(dev, dev->subdevices + 2);
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subdev_8255_cleanup(dev, dev->subdevices + 3);
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}
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return 0;
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}
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COMEDI_PCI_INITCLEANUP(driver_adl_pci7296, adl_pci7296_pci_table);
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