[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / staging / comedi / drivers / adl_pci7296.c

/*
    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

static DEFINE_PCI_DEVICE_TABLE(adl_pci7296_pci_table) = {
	{
	PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI7296, PCI_ANY_ID,
		    PCI_ANY_ID, 0, 0, 0}, {
	0}
};

MODULE_DEVICE_TABLE(pci, adl_pci7296_pci_table);

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);
static int adl_pci7296_detach(struct comedi_device *dev);
static struct comedi_driver driver_adl_pci7296 = {
	.driver_name = "adl_pci7296",
	.module = THIS_MODULE,
	.attach = adl_pci7296_attach,
	.detach = adl_pci7296_detach,
};

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 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.driver_name);
}

static void __devexit driver_adl_pci7296_pci_remove(struct pci_dev *dev)
{
	comedi_pci_auto_unconfig(dev);
}

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);
}

static void __exit driver_adl_pci7296_cleanup_module(void)
{
	pci_unregister_driver(&driver_adl_pci7296_pci_driver);
	comedi_driver_unregister(&driver_adl_pci7296);
}

module_init(driver_adl_pci7296_init_module);
module_exit(driver_adl_pci7296_cleanup_module);

MODULE_AUTHOR("Comedi http://www.comedi.org");
MODULE_DESCRIPTION("Comedi low-level driver");
MODULE_LICENSE("GPL");
Commit	Line	Data
bb71f8b3 JG	1	/*
	2	comedi/drivers/adl_pci7296.c
	3
	4	COMEDI - Linux Control and Measurement Device Interface
	5	Copyright (C) 2000 David A. Schleef <ds@schleef.org>
	6
	7	This program is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License as published by
	9	the Free Software Foundation; either version 2 of the License, or
	10	(at your option) any later version.
	11
	12	This program is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
	16
	17	You should have received a copy of the GNU General Public License
	18	along with this program; if not, write to the Free Software
	19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	20
	21	*/
	22	/*
	23	Driver: adl_pci7296
	24	Description: Driver for the Adlink PCI-7296 96 ch. digital io board
	25	Devices: [ADLink] PCI-7296 (adl_pci7296)
	26	Author: Jon Grierson <jd@renko.co.uk>
	27	Updated: Mon, 14 Apr 2008 15:05:56 +0100
	28	Status: testing
	29
	30	Configuration Options:
	31	[0] - PCI bus of device (optional)
	32	[1] - PCI slot of device (optional)
	33	If bus/slot is not specified, the first supported
	34	PCI device found will be used.
	35	*/
	36
	37	#include "../comedidev.h"
	38	#include <linux/kernel.h>
	39
	40	#include "comedi_pci.h"
	41	#include "8255.h"
2696fb57	42	/* #include "8253.h" */
bb71f8b3 JG	43
	44	#define PORT1A 0
	45	#define PORT2A 4
	46	#define PORT3A 8
	47	#define PORT4A 12
	48
	49	#define PCI_DEVICE_ID_PCI7296 0x7296
	50
	51	static DEFINE_PCI_DEVICE_TABLE(adl_pci7296_pci_table) = {
0a85b6f0 MT	52	{
	53	PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI7296, PCI_ANY_ID,
	54	PCI_ANY_ID, 0, 0, 0}, {
	55	0}
bb71f8b3 JG	56	};
	57
	58	MODULE_DEVICE_TABLE(pci, adl_pci7296_pci_table);
	59
8dca707e	60	struct adl_pci7296_private {
bb71f8b3 JG	61	int data;
bb71f8b3 JG	62	struct pci_dev *pci_dev;
8dca707e BP	63	};
8dca707e BP	64
8dca707e	65	#define devpriv ((struct adl_pci7296_private *)dev->private)
bb71f8b3	66
0a85b6f0 MT	67	static int adl_pci7296_attach(struct comedi_device *dev,
0a85b6f0 MT	68	struct comedi_devconfig *it);
da91b269	69	static int adl_pci7296_detach(struct comedi_device *dev);
139dfbdf	70	static struct comedi_driver driver_adl_pci7296 = {
68c3dbff BP	71	.driver_name = "adl_pci7296",
	72	.module = THIS_MODULE,
	73	.attach = adl_pci7296_attach,
	74	.detach = adl_pci7296_detach,
bb71f8b3 JG	75	};
bb71f8b3 JG	76
0a85b6f0 MT	77	static int adl_pci7296_attach(struct comedi_device *dev,
0a85b6f0 MT	78	struct comedi_devconfig *it)
bb71f8b3	79	{
20fb2280	80	struct pci_dev *pcidev = NULL;
34c43922	81	struct comedi_subdevice *s;
bb71f8b3 JG	82	int bus, slot;
	83	int ret;
	84
1ab1774f	85	printk(KERN_INFO "comedi%d: attach adl_pci7432\n", dev->minor);
bb71f8b3 JG	86
	87	dev->board_name = "pci7432";
	88	bus = it->options[0];
	89	slot = it->options[1];
	90
8dca707e	91	if (alloc_private(dev, sizeof(struct adl_pci7296_private)) < 0)
bb71f8b3 JG	92	return -ENOMEM;
	93
	94	if (alloc_subdevices(dev, 4) < 0)
	95	return -ENOMEM;
	96
20fb2280	97	for_each_pci_dev(pcidev) {
bb71f8b3	98	if (pcidev->vendor == PCI_VENDOR_ID_ADLINK &&
0a85b6f0	99	pcidev->device == PCI_DEVICE_ID_PCI7296) {
bb71f8b3 JG	100	if (bus \|\| slot) {
	101	/* requested particular bus/slot */
	102	if (pcidev->bus->number != bus
0a85b6f0	103	\|\| PCI_SLOT(pcidev->devfn) != slot) {
bb71f8b3 JG	104	continue;
	105	}
	106	}
	107	devpriv->pci_dev = pcidev;
	108	if (comedi_pci_enable(pcidev, "adl_pci7296") < 0) {
1ab1774f	109	printk(KERN_ERR "comedi%d: Failed to enable PCI device and request regions\n",
0a85b6f0	110	dev->minor);
bb71f8b3 JG	111	return -EIO;
	112	}
	113
	114	dev->iobase = pci_resource_start(pcidev, 2);
1ab1774f BJ	115	printk(KERN_INFO "comedi: base addr %4lx\n",
1ab1774f BJ	116	dev->iobase);
bb71f8b3	117
2696fb57	118	/* four 8255 digital io subdevices */
bb71f8b3 JG	119	s = dev->subdevices + 0;
bb71f8b3 JG	120	subdev_8255_init(dev, s, NULL,
0a85b6f0	121	(unsigned long)(dev->iobase));
bb71f8b3 JG	122
	123	s = dev->subdevices + 1;
	124	ret = subdev_8255_init(dev, s, NULL,
0a85b6f0 MT	125	(unsigned long)(dev->iobase +
0a85b6f0 MT	126	PORT2A));
bb71f8b3 JG	127	if (ret < 0)
	128	return ret;
	129
	130	s = dev->subdevices + 2;
	131	ret = subdev_8255_init(dev, s, NULL,
0a85b6f0 MT	132	(unsigned long)(dev->iobase +
0a85b6f0 MT	133	PORT3A));
bb71f8b3 JG	134	if (ret < 0)
	135	return ret;
	136
	137	s = dev->subdevices + 3;
	138	ret = subdev_8255_init(dev, s, NULL,
0a85b6f0 MT	139	(unsigned long)(dev->iobase +
0a85b6f0 MT	140	PORT4A));
bb71f8b3 JG	141	if (ret < 0)
	142	return ret;
	143
1ab1774f BJ	144	printk(KERN_DEBUG "comedi%d: adl_pci7432 attached\n",
1ab1774f BJ	145	dev->minor);
bb71f8b3 JG	146
	147	return 1;
	148	}
	149	}
	150
1ab1774f	151	printk(KERN_ERR "comedi%d: no supported board found! (req. bus/slot : %d/%d)\n",
0a85b6f0	152	dev->minor, bus, slot);
bb71f8b3 JG	153	return -EIO;
	154	}
	155
da91b269	156	static int adl_pci7296_detach(struct comedi_device *dev)
bb71f8b3	157	{
1ab1774f	158	printk(KERN_INFO "comedi%d: pci7432: remove\n", dev->minor);
bb71f8b3 JG	159
bb71f8b3 JG	160	if (devpriv && devpriv->pci_dev) {
1ab1774f	161	if (dev->iobase)
bb71f8b3	162	comedi_pci_disable(devpriv->pci_dev);
bb71f8b3 JG	163	pci_dev_put(devpriv->pci_dev);
bb71f8b3 JG	164	}
2696fb57	165	/* detach four 8255 digital io subdevices */
bb71f8b3 JG	166	if (dev->subdevices) {
	167	subdev_8255_cleanup(dev, dev->subdevices + 0);
	168	subdev_8255_cleanup(dev, dev->subdevices + 1);
	169	subdev_8255_cleanup(dev, dev->subdevices + 2);
	170	subdev_8255_cleanup(dev, dev->subdevices + 3);
	171
	172	}
	173
	174	return 0;
	175	}
	176
727b286b AT	177	static int __devinit driver_adl_pci7296_pci_probe(struct pci_dev *dev,
	178	const struct pci_device_id
	179	*ent)
	180	{
	181	return comedi_pci_auto_config(dev, driver_adl_pci7296.driver_name);
	182	}
	183
	184	static void __devexit driver_adl_pci7296_pci_remove(struct pci_dev *dev)
	185	{
	186	comedi_pci_auto_unconfig(dev);
	187	}
	188
	189	static struct pci_driver driver_adl_pci7296_pci_driver = {
	190	.id_table = adl_pci7296_pci_table,
	191	.probe = &driver_adl_pci7296_pci_probe,
	192	.remove = __devexit_p(&driver_adl_pci7296_pci_remove)
	193	};
	194
	195	static int __init driver_adl_pci7296_init_module(void)
	196	{
	197	int retval;
	198
	199	retval = comedi_driver_register(&driver_adl_pci7296);
	200	if (retval < 0)
	201	return retval;
	202
	203	driver_adl_pci7296_pci_driver.name =
	204	(char *)driver_adl_pci7296.driver_name;
	205	return pci_register_driver(&driver_adl_pci7296_pci_driver);
	206	}
	207
	208	static void __exit driver_adl_pci7296_cleanup_module(void)
	209	{
	210	pci_unregister_driver(&driver_adl_pci7296_pci_driver);
	211	comedi_driver_unregister(&driver_adl_pci7296);
	212	}
	213
	214	module_init(driver_adl_pci7296_init_module);
	215	module_exit(driver_adl_pci7296_cleanup_module);
90f703d3 AT	216
	217	MODULE_AUTHOR("Comedi http://www.comedi.org");
	218	MODULE_DESCRIPTION("Comedi low-level driver");
	219	MODULE_LICENSE("GPL");