ide-pnp.c revision 86f3a492bb09eee5745b93af35f2212179c251fd 
1/*
2 * linux/drivers/ide/ide-pnp.c
3 *
4 * This file provides autodetection for ISA PnP IDE interfaces.
5 * It was tested with "ESS ES1868 Plug and Play AudioDrive" IDE interface.
6 *
7 * Copyright (C) 2000 Andrey Panin <pazke@donpac.ru>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2, or (at your option)
12 * any later version.
13 *
14 * You should have received a copy of the GNU General Public License
15 * (for example /usr/src/linux/COPYING); if not, write to the Free
16 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17 */
18
19#include <linux/init.h>
20#include <linux/pnp.h>
21#include <linux/ide.h>
22
23/* Add your devices here :)) */
24static struct pnp_device_id idepnp_devices[] = {
25  	/* Generic ESDI/IDE/ATA compatible hard disk controller */
26	{.id = "PNP0600", .driver_data = 0},
27	{.id = ""}
28};
29
30static int idepnp_probe(struct pnp_dev * dev, const struct pnp_device_id *dev_id)
31{
32	hw_regs_t hw;
33	ide_hwif_t *hwif;
34	int index;
35
36	if (!(pnp_port_valid(dev, 0) && pnp_port_valid(dev, 1) && pnp_irq_valid(dev, 0)))
37		return -1;
38
39	memset(&hw, 0, sizeof(hw));
40	ide_std_init_ports(&hw, pnp_port_start(dev, 0),
41				pnp_port_start(dev, 1));
42	hw.irq = pnp_irq(dev, 0);
43
44	index = ide_register_hw(&hw, NULL, 1, &hwif);
45
46	if (index != -1) {
47	    	printk(KERN_INFO "ide%d: generic PnP IDE interface\n", index);
48		pnp_set_drvdata(dev,hwif);
49		return 0;
50	}
51
52	return -1;
53}
54
55static void idepnp_remove(struct pnp_dev * dev)
56{
57	ide_hwif_t *hwif = pnp_get_drvdata(dev);
58	if (hwif) {
59		ide_unregister(hwif->index);
60	} else
61		printk(KERN_ERR "idepnp: Unable to remove device, please report.\n");
62}
63
64static struct pnp_driver idepnp_driver = {
65	.name		= "ide",
66	.id_table	= idepnp_devices,
67	.probe		= idepnp_probe,
68	.remove		= idepnp_remove,
69};
70
71void __init pnpide_init(void)
72{
73	pnp_register_driver(&idepnp_driver);
74}
75
76void __exit pnpide_exit(void)
77{
78	pnp_unregister_driver(&idepnp_driver);
79}
80