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af1a8899 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 | 2 | /* |
1da177e4 LT |
3 | * This file provides autodetection for ISA PnP IDE interfaces. |
4 | * It was tested with "ESS ES1868 Plug and Play AudioDrive" IDE interface. | |
5 | * | |
6 | * Copyright (C) 2000 Andrey Panin <pazke@donpac.ru> | |
1da177e4 LT |
7 | */ |
8 | ||
9 | #include <linux/init.h> | |
10 | #include <linux/pnp.h> | |
11 | #include <linux/ide.h> | |
bff7832d | 12 | #include <linux/module.h> |
1da177e4 | 13 | |
134d4548 BZ |
14 | #define DRV_NAME "ide-pnp" |
15 | ||
1da177e4 | 16 | /* Add your devices here :)) */ |
b671e170 | 17 | static const struct pnp_device_id idepnp_devices[] = { |
177b8fe9 | 18 | /* Generic ESDI/IDE/ATA compatible hard disk controller */ |
1da177e4 LT |
19 | {.id = "PNP0600", .driver_data = 0}, |
20 | {.id = ""} | |
21 | }; | |
22 | ||
ee1464a4 BZ |
23 | static const struct ide_port_info ide_pnp_port_info = { |
24 | .host_flags = IDE_HFLAG_NO_DMA, | |
29e52cf7 | 25 | .chipset = ide_generic, |
ee1464a4 BZ |
26 | }; |
27 | ||
177b8fe9 | 28 | static int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id) |
1da177e4 | 29 | { |
48c3c107 | 30 | struct ide_host *host; |
134d4548 | 31 | unsigned long base, ctl; |
6f904d01 | 32 | int rc; |
9f36d314 | 33 | struct ide_hw hw, *hws[] = { &hw }; |
1da177e4 | 34 | |
e193c3e1 BZ |
35 | printk(KERN_INFO DRV_NAME ": generic PnP IDE interface\n"); |
36 | ||
1da177e4 LT |
37 | if (!(pnp_port_valid(dev, 0) && pnp_port_valid(dev, 1) && pnp_irq_valid(dev, 0))) |
38 | return -1; | |
39 | ||
134d4548 BZ |
40 | base = pnp_port_start(dev, 0); |
41 | ctl = pnp_port_start(dev, 1); | |
42 | ||
43 | if (!request_region(base, 8, DRV_NAME)) { | |
44 | printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n", | |
45 | DRV_NAME, base, base + 7); | |
46 | return -EBUSY; | |
47 | } | |
48 | ||
49 | if (!request_region(ctl, 1, DRV_NAME)) { | |
50 | printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n", | |
51 | DRV_NAME, ctl); | |
52 | release_region(base, 8); | |
53 | return -EBUSY; | |
54 | } | |
55 | ||
1da177e4 | 56 | memset(&hw, 0, sizeof(hw)); |
134d4548 | 57 | ide_std_init_ports(&hw, base, ctl); |
1da177e4 | 58 | hw.irq = pnp_irq(dev, 0); |
1da177e4 | 59 | |
dca39830 | 60 | rc = ide_host_add(&ide_pnp_port_info, hws, 1, &host); |
6f904d01 BZ |
61 | if (rc) |
62 | goto out; | |
cbb010c1 | 63 | |
6f904d01 | 64 | pnp_set_drvdata(dev, host); |
1da177e4 | 65 | |
6f904d01 BZ |
66 | return 0; |
67 | out: | |
134d4548 BZ |
68 | release_region(ctl, 1); |
69 | release_region(base, 8); | |
70 | ||
6f904d01 | 71 | return rc; |
1da177e4 LT |
72 | } |
73 | ||
177b8fe9 | 74 | static void idepnp_remove(struct pnp_dev *dev) |
1da177e4 | 75 | { |
48c3c107 | 76 | struct ide_host *host = pnp_get_drvdata(dev); |
f82c2b17 | 77 | |
48c3c107 | 78 | ide_host_remove(host); |
134d4548 BZ |
79 | |
80 | release_region(pnp_port_start(dev, 1), 1); | |
81 | release_region(pnp_port_start(dev, 0), 8); | |
1da177e4 LT |
82 | } |
83 | ||
84 | static struct pnp_driver idepnp_driver = { | |
85 | .name = "ide", | |
86 | .id_table = idepnp_devices, | |
87 | .probe = idepnp_probe, | |
88 | .remove = idepnp_remove, | |
89 | }; | |
90 | ||
6a533309 | 91 | module_pnp_driver(idepnp_driver); |
a62ee641 | 92 | MODULE_LICENSE("GPL"); |