tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * This file provides autodetection for ISA PnP IDE interfaces.
3 * It was tested with "ESS ES1868 Plug and Play AudioDrive" IDE interface.
4 *
5 * Copyright (C) 2000 Andrey Panin <pazke@donpac.ru>
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, or (at your option)
10 * any later version.
11 *
12 * You should have received a copy of the GNU General Public License
13 * (for example /usr/src/linux/COPYING); if not, write to the Free
14 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
15 */
16
17#include <linux/init.h>
18#include <linux/pnp.h>
19#include <linux/ide.h>
20
21/* Add your devices here :)) */
22static struct pnp_device_id idepnp_devices[] = {
23 /* Generic ESDI/IDE/ATA compatible hard disk controller */
24 {.id = "PNP0600", .driver_data = 0},
25 {.id = ""}
26};
27
28static int idepnp_probe(struct pnp_dev * dev, const struct pnp_device_id *dev_id)
29{
30 hw_regs_t hw;
31 ide_hwif_t *hwif;
32
33 if (!(pnp_port_valid(dev, 0) && pnp_port_valid(dev, 1) && pnp_irq_valid(dev, 0)))
34 return -1;
35
36 memset(&hw, 0, sizeof(hw));
37 ide_std_init_ports(&hw, pnp_port_start(dev, 0),
38 pnp_port_start(dev, 1));
39 hw.irq = pnp_irq(dev, 0);
40
41 hwif = ide_find_port(hw.io_ports[IDE_DATA_OFFSET]);
42 if (hwif) {
43 u8 index = hwif->index;
44 u8 idx[4] = { index, 0xff, 0xff, 0xff };
45
46 ide_init_port_data(hwif, index);
47 ide_init_port_hw(hwif, &hw);
48
49 printk(KERN_INFO "ide%d: generic PnP IDE interface\n", index);
50 pnp_set_drvdata(dev,hwif);
51
52 ide_device_add(idx, NULL);
53
54 return 0;
55 }
56
57 return -1;
58}
59
60static void idepnp_remove(struct pnp_dev * dev)
61{
62 ide_hwif_t *hwif = pnp_get_drvdata(dev);
63
64 if (hwif)
65 ide_unregister(hwif->index, 0, 0);
66 else
67 printk(KERN_ERR "idepnp: Unable to remove device, please report.\n");
68}
69
70static struct pnp_driver idepnp_driver = {
71 .name = "ide",
72 .id_table = idepnp_devices,
73 .probe = idepnp_probe,
74 .remove = idepnp_remove,
75};
76
77static int __init pnpide_init(void)
78{
79 return pnp_register_driver(&idepnp_driver);
80}
81
82static void __exit pnpide_exit(void)
83{
84 pnp_unregister_driver(&idepnp_driver);
85}
86
87module_init(pnpide_init);
88module_exit(pnpide_exit);