blob: e5f3db8313733ce8ce9b682cc7b63dc3e5558d38 [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>
Paul Gortmakerbff78322011-07-03 13:41:29 -040020#include <linux/module.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070021
Bartlomiej Zolnierkiewicz134d4542008-04-26 22:25:16 +020022#define DRV_NAME "ide-pnp"
23
Linus Torvalds1da177e2005-04-16 15:20:36 -070024/* Add your devices here :)) */
25static struct pnp_device_id idepnp_devices[] = {
Paolo Ciarrocchi177b8fe2008-04-26 17:36:40 +020026 /* Generic ESDI/IDE/ATA compatible hard disk controller */
Linus Torvalds1da177e2005-04-16 15:20:36 -070027 {.id = "PNP0600", .driver_data = 0},
28 {.id = ""}
29};
30
Bartlomiej Zolnierkiewiczee1464a2009-03-27 12:46:18 +010031static const struct ide_port_info ide_pnp_port_info = {
32 .host_flags = IDE_HFLAG_NO_DMA,
Bartlomiej Zolnierkiewicz29e52cf2009-05-17 19:12:22 +020033 .chipset = ide_generic,
Bartlomiej Zolnierkiewiczee1464a2009-03-27 12:46:18 +010034};
35
Paolo Ciarrocchi177b8fe2008-04-26 17:36:40 +020036static int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -070037{
Bartlomiej Zolnierkiewicz48c3c102008-07-23 19:55:57 +020038 struct ide_host *host;
Bartlomiej Zolnierkiewicz134d4542008-04-26 22:25:16 +020039 unsigned long base, ctl;
Bartlomiej Zolnierkiewicz6f904d02008-07-23 19:55:57 +020040 int rc;
Bartlomiej Zolnierkiewicz9f36d312009-05-17 19:12:25 +020041 struct ide_hw hw, *hws[] = { &hw };
Linus Torvalds1da177e2005-04-16 15:20:36 -070042
Bartlomiej Zolnierkiewicze193c3e2008-07-16 20:33:43 +020043 printk(KERN_INFO DRV_NAME ": generic PnP IDE interface\n");
44
Linus Torvalds1da177e2005-04-16 15:20:36 -070045 if (!(pnp_port_valid(dev, 0) && pnp_port_valid(dev, 1) && pnp_irq_valid(dev, 0)))
46 return -1;
47
Bartlomiej Zolnierkiewicz134d4542008-04-26 22:25:16 +020048 base = pnp_port_start(dev, 0);
49 ctl = pnp_port_start(dev, 1);
50
51 if (!request_region(base, 8, DRV_NAME)) {
52 printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
53 DRV_NAME, base, base + 7);
54 return -EBUSY;
55 }
56
57 if (!request_region(ctl, 1, DRV_NAME)) {
58 printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
59 DRV_NAME, ctl);
60 release_region(base, 8);
61 return -EBUSY;
62 }
63
Linus Torvalds1da177e2005-04-16 15:20:36 -070064 memset(&hw, 0, sizeof(hw));
Bartlomiej Zolnierkiewicz134d4542008-04-26 22:25:16 +020065 ide_std_init_ports(&hw, base, ctl);
Linus Torvalds1da177e2005-04-16 15:20:36 -070066 hw.irq = pnp_irq(dev, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -070067
Bartlomiej Zolnierkiewiczdca39832009-05-17 19:12:24 +020068 rc = ide_host_add(&ide_pnp_port_info, hws, 1, &host);
Bartlomiej Zolnierkiewicz6f904d02008-07-23 19:55:57 +020069 if (rc)
70 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -070071
Bartlomiej Zolnierkiewicz6f904d02008-07-23 19:55:57 +020072 pnp_set_drvdata(dev, host);
Bartlomiej Zolnierkiewicz8ac4ce72008-01-26 20:13:06 +010073
Bartlomiej Zolnierkiewicz6f904d02008-07-23 19:55:57 +020074 return 0;
75out:
Bartlomiej Zolnierkiewicz134d4542008-04-26 22:25:16 +020076 release_region(ctl, 1);
77 release_region(base, 8);
78
Bartlomiej Zolnierkiewicz6f904d02008-07-23 19:55:57 +020079 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -070080}
81
Paolo Ciarrocchi177b8fe2008-04-26 17:36:40 +020082static void idepnp_remove(struct pnp_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -070083{
Bartlomiej Zolnierkiewicz48c3c102008-07-23 19:55:57 +020084 struct ide_host *host = pnp_get_drvdata(dev);
Bartlomiej Zolnierkiewiczf82c2b12008-02-02 19:56:39 +010085
Bartlomiej Zolnierkiewicz48c3c102008-07-23 19:55:57 +020086 ide_host_remove(host);
Bartlomiej Zolnierkiewicz134d4542008-04-26 22:25:16 +020087
88 release_region(pnp_port_start(dev, 1), 1);
89 release_region(pnp_port_start(dev, 0), 8);
Linus Torvalds1da177e2005-04-16 15:20:36 -070090}
91
92static struct pnp_driver idepnp_driver = {
93 .name = "ide",
94 .id_table = idepnp_devices,
95 .probe = idepnp_probe,
96 .remove = idepnp_remove,
97};
98
Bartlomiej Zolnierkiewiczade2daf2008-01-26 20:13:07 +010099static int __init pnpide_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700100{
Bartlomiej Zolnierkiewiczade2daf2008-01-26 20:13:07 +0100101 return pnp_register_driver(&idepnp_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102}
Tejun Heo68550362007-01-27 13:47:02 +0100103
Bartlomiej Zolnierkiewiczade2daf2008-01-26 20:13:07 +0100104static void __exit pnpide_exit(void)
Tejun Heo68550362007-01-27 13:47:02 +0100105{
106 pnp_unregister_driver(&idepnp_driver);
107}
Bartlomiej Zolnierkiewiczade2daf2008-01-26 20:13:07 +0100108
109module_init(pnpide_init);
110module_exit(pnpide_exit);
Adrian Bunka62ee642008-04-02 21:22:02 +0200111
112MODULE_LICENSE("GPL");