linux/drivers/staging/comedi/drivers/adl_pci7230.c - nest-guard/1.0/linux - Git at Google

 /*
     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_VENDOR_ID_ADLINK,
 		PCI_DEVICE_ID_PCI7230,
 		PCI_ANY_ID,
 		PCI_ANY_ID,
 		0,
 		0,
 		0
 	},
 	{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");
	/*
	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_VENDOR_ID_ADLINK,
	PCI_DEVICE_ID_PCI7230,
	PCI_ANY_ID,
	PCI_ANY_ID,
	0,
	0,
	0
	},
	{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");