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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 | #define DRV_NAME "ide-pnp" |
22 | |
23 | /* Add your devices here :)) */ |
24 | static 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 | |
30 | static const struct ide_port_info ide_pnp_port_info = { |
31 | .host_flags = IDE_HFLAG_NO_DMA, |
32 | .chipset = ide_generic, |
33 | }; |
34 | |
35 | static int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id) |
36 | { |
37 | struct ide_host *host; |
38 | unsigned long base, ctl; |
39 | int rc; |
40 | struct ide_hw hw, *hws[] = { &hw }; |
41 | |
42 | printk(KERN_INFO DRV_NAME ": generic PnP IDE interface\n"); |
43 | |
44 | if (!(pnp_port_valid(dev, 0) && pnp_port_valid(dev, 1) && pnp_irq_valid(dev, 0))) |
45 | return -1; |
46 | |
47 | 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 | |
63 | memset(&hw, 0, sizeof(hw)); |
64 | ide_std_init_ports(&hw, base, ctl); |
65 | hw.irq = pnp_irq(dev, 0); |
66 | |
67 | rc = ide_host_add(&ide_pnp_port_info, hws, 1, &host); |
68 | if (rc) |
69 | goto out; |
70 | |
71 | pnp_set_drvdata(dev, host); |
72 | |
73 | return 0; |
74 | out: |
75 | release_region(ctl, 1); |
76 | release_region(base, 8); |
77 | |
78 | return rc; |
79 | } |
80 | |
81 | static void idepnp_remove(struct pnp_dev *dev) |
82 | { |
83 | struct ide_host *host = pnp_get_drvdata(dev); |
84 | |
85 | ide_host_remove(host); |
86 | |
87 | release_region(pnp_port_start(dev, 1), 1); |
88 | release_region(pnp_port_start(dev, 0), 8); |
89 | } |
90 | |
91 | static struct pnp_driver idepnp_driver = { |
92 | .name = "ide", |
93 | .id_table = idepnp_devices, |
94 | .probe = idepnp_probe, |
95 | .remove = idepnp_remove, |
96 | }; |
97 | |
98 | static int __init pnpide_init(void) |
99 | { |
100 | return pnp_register_driver(&idepnp_driver); |
101 | } |
102 | |
103 | static void __exit pnpide_exit(void) |
104 | { |
105 | pnp_unregister_driver(&idepnp_driver); |
106 | } |
107 | |
108 | module_init(pnpide_init); |
109 | module_exit(pnpide_exit); |
110 | |
111 | MODULE_LICENSE("GPL"); |
112 |
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Tags:
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od-2011-09-18
v2.6.34-rc5
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