ni_labpc_pci.c revision 641f064e5df6fb3aaeb6256031a153a5efb16ca6 
1/*
2 * comedi/drivers/ni_labpc_pci.c
3 * Driver for National Instruments Lab-PC PCI-1200
4 * Copyright (C) 2001, 2002, 2003 Frank Mori Hess <fmhess@users.sourceforge.net>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 * GNU General Public License for more details.
15 */
16
17/*
18 * Driver: ni_labpc_pci
19 * Description: National Instruments Lab-PC PCI-1200
20 * Devices: (National Instruments) PCI-1200 [ni_pci-1200]
21 * Author: Frank Mori Hess <fmhess@users.sourceforge.net>
22 * Status: works
23 *
24 * This is the PCI-specific support split off from the ni_labpc driver.
25 *
26 * Configuration Options: not applicable, uses PCI auto config
27 *
28 * NI manuals:
29 * 340914a (pci-1200)
30 */
31
32#include <linux/interrupt.h>
33#include <linux/slab.h>
34#include <linux/pci.h>
35
36#include "../comedidev.h"
37
38#include "mite.h"
39#include "ni_labpc.h"
40
41enum labpc_pci_boardid {
42	BOARD_NI_PCI1200,
43};
44
45static const struct labpc_boardinfo labpc_pci_boards[] = {
46	[BOARD_NI_PCI1200] = {
47		.name			= "ni_pci-1200",
48		.ai_range_code		= labpc_1200_ai_gain_bits,
49		.ai_speed		= 10000,
50		.ai_scan_up		= 1,
51		.has_ao			= 1,
52		.is_labpc1200		= 1,
53		.has_mmio		= 1,
54	},
55};
56
57static int labpc_pci_auto_attach(struct comedi_device *dev,
58				 unsigned long context)
59{
60	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
61	const struct labpc_boardinfo *board = NULL;
62	struct labpc_private *devpriv;
63	int ret;
64
65	if (context < ARRAY_SIZE(labpc_pci_boards))
66		board = &labpc_pci_boards[context];
67	if (!board)
68		return -ENODEV;
69	dev->board_ptr = board;
70	dev->board_name = board->name;
71
72	ret = comedi_pci_enable(dev);
73	if (ret)
74		return ret;
75
76	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
77	if (!devpriv)
78		return -ENOMEM;
79	dev->private = devpriv;
80
81	devpriv->mite = mite_alloc(pcidev);
82	if (!devpriv->mite)
83		return -ENOMEM;
84	ret = mite_setup(devpriv->mite);
85	if (ret < 0)
86		return ret;
87	dev->iobase = (unsigned long)devpriv->mite->daq_io_addr;
88
89	return labpc_common_attach(dev, mite_irq(devpriv->mite), IRQF_SHARED);
90}
91
92static void labpc_pci_detach(struct comedi_device *dev)
93{
94	struct labpc_private *devpriv = dev->private;
95
96	labpc_common_detach(dev);
97
98	if (devpriv && devpriv->mite) {
99		mite_unsetup(devpriv->mite);
100		mite_free(devpriv->mite);
101	}
102	if (dev->irq)
103		free_irq(dev->irq, dev);
104	comedi_pci_disable(dev);
105}
106
107static struct comedi_driver labpc_pci_comedi_driver = {
108	.driver_name	= "labpc_pci",
109	.module		= THIS_MODULE,
110	.auto_attach	= labpc_pci_auto_attach,
111	.detach		= labpc_pci_detach,
112};
113
114static DEFINE_PCI_DEVICE_TABLE(labpc_pci_table) = {
115	{ PCI_VDEVICE(NI, 0x161), BOARD_NI_PCI1200 },
116	{ 0 }
117};
118MODULE_DEVICE_TABLE(pci, labpc_pci_table);
119
120static int labpc_pci_probe(struct pci_dev *dev,
121			   const struct pci_device_id *id)
122{
123	return comedi_pci_auto_config(dev, &labpc_pci_comedi_driver,
124				      id->driver_data);
125}
126
127static struct pci_driver labpc_pci_driver = {
128	.name		= "labpc_pci",
129	.id_table	= labpc_pci_table,
130	.probe		= labpc_pci_probe,
131	.remove		= comedi_pci_auto_unconfig,
132};
133module_comedi_pci_driver(labpc_pci_comedi_driver, labpc_pci_driver);
134
135MODULE_DESCRIPTION("Comedi: National Instruments Lab-PC PCI-1200 driver");
136MODULE_AUTHOR("Comedi http://www.comedi.org");
137MODULE_LICENSE("GPL");
138