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/*
comedi/drivers/adl_pci7230.c
Hardware comedi driver fot PCI7230 Adlink card
Copyright (C) 2010 David Fernandez <dfcastelao@gmail.com>
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_pci7230
Description: Driver for the Adlink PCI-7230 32 ch. isolated digital io board
Devices: [ADLink] PCI-7230 (adl_pci7230)
Author: David Fernandez <dfcastelao@gmail.com>
Status: experimental
Updated: Mon, 14 Apr 2008 15:08:14 +0100
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"
#define PCI7230_DI 0x00
#define PCI7230_DO 0x00
#define PCI_DEVICE_ID_PCI7230 0x7230
static DEFINE_PCI_DEVICE_TABLE(adl_pci7230_pci_table) = {
{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI7230) },
{0}
};
MODULE_DEVICE_TABLE(pci, adl_pci7230_pci_table);
struct adl_pci7230_private {
int data;
struct pci_dev *pci_dev;
};
#define devpriv ((struct adl_pci7230_private *)dev->private)
static int adl_pci7230_attach(struct comedi_device *dev,
struct comedi_devconfig *it);
static int adl_pci7230_detach(struct comedi_device *dev);
static struct comedi_driver driver_adl_pci7230 = {
.driver_name = "adl_pci7230",
.module = THIS_MODULE,
.attach = adl_pci7230_attach,
.detach = adl_pci7230_detach,
};
/* Digital IO */
static int adl_pci7230_di_insn_bits(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned int *data);
static int adl_pci7230_do_insn_bits(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned int *data);
static int adl_pci7230_attach(struct comedi_device *dev,
struct comedi_devconfig *it)
{
struct pci_dev *pcidev = NULL;
struct comedi_subdevice *s;
int bus, slot;
printk(KERN_INFO "comedi%d: adl_pci7230\n", dev->minor);
dev->board_name = "pci7230";
bus = it->options[0];
slot = it->options[1];
if (alloc_private(dev, sizeof(struct adl_pci7230_private)) < 0)
return -ENOMEM;
if (alloc_subdevices(dev, 2) < 0)
return -ENOMEM;
for_each_pci_dev(pcidev) {
if (pcidev->vendor == PCI_VENDOR_ID_ADLINK &&
pcidev->device == PCI_DEVICE_ID_PCI7230) {
if (bus || slot) {
/* requested particular bus/slot */
if (pcidev->bus->number != bus ||
PCI_SLOT(pcidev->devfn) != slot) {
continue;
}
}
devpriv->pci_dev = pcidev;
break;
}
}
if (pcidev == NULL) {
printk(KERN_ERR "comedi%d: no supported board found! (req. bus/slot : %d/%d)\n",
dev->minor, bus, slot);
return -EIO;
}
if (comedi_pci_enable(pcidev, "adl_pci7230") < 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_DEBUG "comedi: base addr %4lx\n", dev->iobase);
s = dev->subdevices + 0;
/* Isolated do */
s->type = COMEDI_SUBD_DO;
s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
s->n_chan = 16;
s->maxdata = 1;
s->range_table = &range_digital;
s->insn_bits = adl_pci7230_do_insn_bits;
s = dev->subdevices + 1;
/* Isolated di */
s->type = COMEDI_SUBD_DI;
s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_COMMON;
s->n_chan = 16;
s->maxdata = 1;
s->range_table = &range_digital;
s->insn_bits = adl_pci7230_di_insn_bits;
printk(KERN_DEBUG "comedi: attached\n");
return 1;
}
static int adl_pci7230_detach(struct comedi_device *dev)
{
printk(KERN_DEBUG "comedi%d: pci7230: remove\n", dev->minor);
if (devpriv && devpriv->pci_dev) {
if (dev->iobase)
comedi_pci_disable(devpriv->pci_dev);
pci_dev_put(devpriv->pci_dev);
}
return 0;
}
static int adl_pci7230_do_insn_bits(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned int *data)
{
if (insn->n != 2)
return -EINVAL;
if (data[0]) {
s->state &= ~data[0];
s->state |= (data[0] & data[1]);
outl((s->state << 16) & 0xffffffff, dev->iobase + PCI7230_DO);
}
return 2;
}
static int adl_pci7230_di_insn_bits(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned int *data)
{
if (insn->n != 2)
return -EINVAL;
data[1] = inl(dev->iobase + PCI7230_DI) & 0xffffffff;
return 2;
}
static int __devinit driver_adl_pci7230_pci_probe(struct pci_dev *dev,
const struct pci_device_id
*ent)
{
return comedi_pci_auto_config(dev, driver_adl_pci7230.driver_name);
}
static void __devexit driver_adl_pci7230_pci_remove(struct pci_dev *dev)
{
comedi_pci_auto_unconfig(dev);
}
static struct pci_driver driver_adl_pci7230_pci_driver = {
.id_table = adl_pci7230_pci_table,
.probe = &driver_adl_pci7230_pci_probe,
.remove = __devexit_p(&driver_adl_pci7230_pci_remove)
};
static int __init driver_adl_pci7230_init_module(void)
{
int retval;
retval = comedi_driver_register(&driver_adl_pci7230);
if (retval < 0)
return retval;
driver_adl_pci7230_pci_driver.name =
(char *)driver_adl_pci7230.driver_name;
return pci_register_driver(&driver_adl_pci7230_pci_driver);
}
static void __exit driver_adl_pci7230_cleanup_module(void)
{
pci_unregister_driver(&driver_adl_pci7230_pci_driver);
comedi_driver_unregister(&driver_adl_pci7230);
}
module_init(driver_adl_pci7230_init_module);
module_exit(driver_adl_pci7230_cleanup_module);
MODULE_AUTHOR("Comedi http://www.comedi.org");
MODULE_DESCRIPTION("Comedi low-level driver");
MODULE_LICENSE("GPL");
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