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/*
comedi/drivers/adl_pci7296.c
COMEDI - Linux Control and Measurement Device Interface
Copyright (C) 2000 David A. Schleef <ds@schleef.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
Driver: adl_pci7296
Description: Driver for the Adlink PCI-7296 96 ch. digital io board
Devices: [ADLink] PCI-7296 (adl_pci7296)
Author: Jon Grierson <jd@renko.co.uk>
Updated: Mon, 14 Apr 2008 15:05:56 +0100
Status: testing
Configuration Options:
[0] - PCI bus of device (optional)
[1] - PCI slot of device (optional)
If bus/slot is not specified, the first supported
PCI device found will be used.
*/
#include "../comedidev.h"
#include <linux/kernel.h>
#include "comedi_pci.h"
#include "8255.h"
/* #include "8253.h" */
#define PORT1A 0
#define PORT2A 4
#define PORT3A 8
#define PORT4A 12
#define PCI_DEVICE_ID_PCI7296 0x7296
struct adl_pci7296_private {
int data;
struct pci_dev *pci_dev;
};
#define devpriv ((struct adl_pci7296_private *)dev->private)
static int adl_pci7296_attach(struct comedi_device *dev,
struct comedi_devconfig *it)
{
struct pci_dev *pcidev = NULL;
struct comedi_subdevice *s;
int bus, slot;
int ret;
printk(KERN_INFO "comedi%d: attach adl_pci7432\n", dev->minor);
dev->board_name = "pci7432";
bus = it->options[0];
slot = it->options[1];
if (alloc_private(dev, sizeof(struct adl_pci7296_private)) < 0)
return -ENOMEM;
if (alloc_subdevices(dev, 4) < 0)
return -ENOMEM;
for_each_pci_dev(pcidev) {
if (pcidev->vendor == PCI_VENDOR_ID_ADLINK &&
pcidev->device == PCI_DEVICE_ID_PCI7296) {
if (bus || slot) {
/* requested particular bus/slot */
if (pcidev->bus->number != bus
|| PCI_SLOT(pcidev->devfn) != slot) {
continue;
}
}
devpriv->pci_dev = pcidev;
if (comedi_pci_enable(pcidev, "adl_pci7296") < 0) {
printk(KERN_ERR "comedi%d: Failed to enable PCI device and request regions\n",
dev->minor);
return -EIO;
}
dev->iobase = pci_resource_start(pcidev, 2);
printk(KERN_INFO "comedi: base addr %4lx\n",
dev->iobase);
/* four 8255 digital io subdevices */
s = dev->subdevices + 0;
subdev_8255_init(dev, s, NULL,
(unsigned long)(dev->iobase));
s = dev->subdevices + 1;
ret = subdev_8255_init(dev, s, NULL,
(unsigned long)(dev->iobase +
PORT2A));
if (ret < 0)
return ret;
s = dev->subdevices + 2;
ret = subdev_8255_init(dev, s, NULL,
(unsigned long)(dev->iobase +
PORT3A));
if (ret < 0)
return ret;
s = dev->subdevices + 3;
ret = subdev_8255_init(dev, s, NULL,
(unsigned long)(dev->iobase +
PORT4A));
if (ret < 0)
return ret;
printk(KERN_DEBUG "comedi%d: adl_pci7432 attached\n",
dev->minor);
return 1;
}
}
printk(KERN_ERR "comedi%d: no supported board found! (req. bus/slot : %d/%d)\n",
dev->minor, bus, slot);
return -EIO;
}
static int adl_pci7296_detach(struct comedi_device *dev)
{
printk(KERN_INFO "comedi%d: pci7432: remove\n", dev->minor);
if (devpriv && devpriv->pci_dev) {
if (dev->iobase)
comedi_pci_disable(devpriv->pci_dev);
pci_dev_put(devpriv->pci_dev);
}
/* detach four 8255 digital io subdevices */
if (dev->subdevices) {
subdev_8255_cleanup(dev, dev->subdevices + 0);
subdev_8255_cleanup(dev, dev->subdevices + 1);
subdev_8255_cleanup(dev, dev->subdevices + 2);
subdev_8255_cleanup(dev, dev->subdevices + 3);
}
return 0;
}
static struct comedi_driver driver_adl_pci7296 = {
.driver_name = "adl_pci7296",
.module = THIS_MODULE,
.attach = adl_pci7296_attach,
.detach = adl_pci7296_detach,
};
static int __devinit driver_adl_pci7296_pci_probe(struct pci_dev *dev,
const struct pci_device_id
*ent)
{
return comedi_pci_auto_config(dev, &driver_adl_pci7296);
}
static void __devexit driver_adl_pci7296_pci_remove(struct pci_dev *dev)
{
comedi_pci_auto_unconfig(dev);
}
static DEFINE_PCI_DEVICE_TABLE(adl_pci7296_pci_table) = {
{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI7296) },
{0}
};
MODULE_DEVICE_TABLE(pci, adl_pci7296_pci_table);
static struct pci_driver driver_adl_pci7296_pci_driver = {
.id_table = adl_pci7296_pci_table,
.probe = driver_adl_pci7296_pci_probe,
.remove = __devexit_p(driver_adl_pci7296_pci_remove)
};
static int __init driver_adl_pci7296_init_module(void)
{
int retval;
retval = comedi_driver_register(&driver_adl_pci7296);
if (retval < 0)
return retval;
driver_adl_pci7296_pci_driver.name =
(char *)driver_adl_pci7296.driver_name;
return pci_register_driver(&driver_adl_pci7296_pci_driver);
}
module_init(driver_adl_pci7296_init_module);
static void __exit driver_adl_pci7296_cleanup_module(void)
{
pci_unregister_driver(&driver_adl_pci7296_pci_driver);
comedi_driver_unregister(&driver_adl_pci7296);
}
module_exit(driver_adl_pci7296_cleanup_module);
MODULE_AUTHOR("Comedi http://www.comedi.org");
MODULE_DESCRIPTION("Comedi low-level driver");
MODULE_LICENSE("GPL");
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