blob: 017b1df3b8054c476b8e7e3dbc3b4112d2d739fc [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 * 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
Paolo Ciarrocchi177b8fe2008-04-26 17:36:40 +020014 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
Linus Torvalds1da177e2005-04-16 15:20:36 -070015 */
16
17#include <linux/init.h>
18#include <linux/pnp.h>
19#include <linux/ide.h>
20
Bartlomiej Zolnierkiewicz134d4542008-04-26 22:25:16 +020021#define DRV_NAME "ide-pnp"
22
Linus Torvalds1da177e2005-04-16 15:20:36 -070023/* Add your devices here :)) */
24static struct pnp_device_id idepnp_devices[] = {
Paolo Ciarrocchi177b8fe2008-04-26 17:36:40 +020025 /* Generic ESDI/IDE/ATA compatible hard disk controller */
Linus Torvalds1da177e2005-04-16 15:20:36 -070026 {.id = "PNP0600", .driver_data = 0},
27 {.id = ""}
28};
29
Bartlomiej Zolnierkiewiczee1464a2009-03-27 12:46:18 +010030static const struct ide_port_info ide_pnp_port_info = {
31 .host_flags = IDE_HFLAG_NO_DMA,
Bartlomiej Zolnierkiewicz29e52cf2009-05-17 19:12:22 +020032 .chipset = ide_generic,
Bartlomiej Zolnierkiewiczee1464a2009-03-27 12:46:18 +010033};
34
Paolo Ciarrocchi177b8fe2008-04-26 17:36:40 +020035static int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -070036{
Bartlomiej Zolnierkiewicz48c3c102008-07-23 19:55:57 +020037 struct ide_host *host;
Bartlomiej Zolnierkiewicz134d4542008-04-26 22:25:16 +020038 unsigned long base, ctl;
Bartlomiej Zolnierkiewicz6f904d02008-07-23 19:55:57 +020039 int rc;
Bartlomiej Zolnierkiewicz9f36d312009-05-17 19:12:25 +020040 struct ide_hw hw, *hws[] = { &hw };
Linus Torvalds1da177e2005-04-16 15:20:36 -070041
Bartlomiej Zolnierkiewicze193c3e2008-07-16 20:33:43 +020042 printk(KERN_INFO DRV_NAME ": generic PnP IDE interface\n");
43
Linus Torvalds1da177e2005-04-16 15:20:36 -070044 if (!(pnp_port_valid(dev, 0) && pnp_port_valid(dev, 1) && pnp_irq_valid(dev, 0)))
45 return -1;
46
Bartlomiej Zolnierkiewicz134d4542008-04-26 22:25:16 +020047 base = pnp_port_start(dev, 0);
48 ctl = pnp_port_start(dev, 1);
49
50 if (!request_region(base, 8, DRV_NAME)) {
51 printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
52 DRV_NAME, base, base + 7);
53 return -EBUSY;
54 }
55
56 if (!request_region(ctl, 1, DRV_NAME)) {
57 printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
58 DRV_NAME, ctl);
59 release_region(base, 8);
60 return -EBUSY;
61 }
62
Linus Torvalds1da177e2005-04-16 15:20:36 -070063 memset(&hw, 0, sizeof(hw));
Bartlomiej Zolnierkiewicz134d4542008-04-26 22:25:16 +020064 ide_std_init_ports(&hw, base, ctl);
Linus Torvalds1da177e2005-04-16 15:20:36 -070065 hw.irq = pnp_irq(dev, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -070066
Bartlomiej Zolnierkiewiczdca39832009-05-17 19:12:24 +020067 rc = ide_host_add(&ide_pnp_port_info, hws, 1, &host);
Bartlomiej Zolnierkiewicz6f904d02008-07-23 19:55:57 +020068 if (rc)
69 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -070070
Bartlomiej Zolnierkiewicz6f904d02008-07-23 19:55:57 +020071 pnp_set_drvdata(dev, host);
Bartlomiej Zolnierkiewicz8ac4ce72008-01-26 20:13:06 +010072
Bartlomiej Zolnierkiewicz6f904d02008-07-23 19:55:57 +020073 return 0;
74out:
Bartlomiej Zolnierkiewicz134d4542008-04-26 22:25:16 +020075 release_region(ctl, 1);
76 release_region(base, 8);
77
Bartlomiej Zolnierkiewicz6f904d02008-07-23 19:55:57 +020078 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -070079}
80
Paolo Ciarrocchi177b8fe2008-04-26 17:36:40 +020081static void idepnp_remove(struct pnp_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -070082{
Bartlomiej Zolnierkiewicz48c3c102008-07-23 19:55:57 +020083 struct ide_host *host = pnp_get_drvdata(dev);
Bartlomiej Zolnierkiewiczf82c2b12008-02-02 19:56:39 +010084
Bartlomiej Zolnierkiewicz48c3c102008-07-23 19:55:57 +020085 ide_host_remove(host);
Bartlomiej Zolnierkiewicz134d4542008-04-26 22:25:16 +020086
87 release_region(pnp_port_start(dev, 1), 1);
88 release_region(pnp_port_start(dev, 0), 8);
Linus Torvalds1da177e2005-04-16 15:20:36 -070089}
90
91static struct pnp_driver idepnp_driver = {
92 .name = "ide",
93 .id_table = idepnp_devices,
94 .probe = idepnp_probe,
95 .remove = idepnp_remove,
96};
97
Bartlomiej Zolnierkiewiczade2daf2008-01-26 20:13:07 +010098static int __init pnpide_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -070099{
Bartlomiej Zolnierkiewiczade2daf2008-01-26 20:13:07 +0100100 return pnp_register_driver(&idepnp_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101}
Tejun Heo68550362007-01-27 13:47:02 +0100102
Bartlomiej Zolnierkiewiczade2daf2008-01-26 20:13:07 +0100103static void __exit pnpide_exit(void)
Tejun Heo68550362007-01-27 13:47:02 +0100104{
105 pnp_unregister_driver(&idepnp_driver);
106}
Bartlomiej Zolnierkiewiczade2daf2008-01-26 20:13:07 +0100107
108module_init(pnpide_init);
109module_exit(pnpide_exit);
Adrian Bunka62ee642008-04-02 21:22:02 +0200110
111MODULE_LICENSE("GPL");