projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 | 1 | /* |
| 1da177e4 LT |
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 <[email protected]> | |
| 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 | |
| 177b8fe9 | 14 | * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 1da177e4 LT |
15 | */ |
| 16 | ||
| 17 | #include <linux/init.h> | |
| 18 | #include <linux/pnp.h> | |
| 19 | #include <linux/ide.h> | |
| bff7832d | 20 | #include <linux/module.h> |
| 1da177e4 | 21 | |
| 134d4548 BZ |
22 | #define DRV_NAME "ide-pnp" |
| 23 | ||
| 1da177e4 LT |
24 | /* Add your devices here :)) */ |
| 25 | static struct pnp_device_id idepnp_devices[] = { | |
| 177b8fe9 | 26 | /* Generic ESDI/IDE/ATA compatible hard disk controller */ |
| 1da177e4 LT |
27 | {.id = "PNP0600", .driver_data = 0}, |
| 28 | {.id = ""} | |
| 29 | }; | |
| 30 | ||
| ee1464a4 BZ |
31 | static const struct ide_port_info ide_pnp_port_info = { |
| 32 | .host_flags = IDE_HFLAG_NO_DMA, | |
| 29e52cf7 | 33 | .chipset = ide_generic, |
| ee1464a4 BZ |
34 | }; |
| 35 | ||
| 177b8fe9 | 36 | static int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id) |
| 1da177e4 | 37 | { |
| 48c3c107 | 38 | struct ide_host *host; |
| 134d4548 | 39 | unsigned long base, ctl; |
| 6f904d01 | 40 | int rc; |
| 9f36d314 | 41 | struct ide_hw hw, *hws[] = { &hw }; |
| 1da177e4 | 42 | |
| e193c3e1 BZ |
43 | printk(KERN_INFO DRV_NAME ": generic PnP IDE interface\n"); |
| 44 | ||
| 1da177e4 LT |
45 | if (!(pnp_port_valid(dev, 0) && pnp_port_valid(dev, 1) && pnp_irq_valid(dev, 0))) |
| 46 | return -1; | |
| 47 | ||
| 134d4548 BZ |
48 | 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 | ||
| 1da177e4 | 64 | memset(&hw, 0, sizeof(hw)); |
| 134d4548 | 65 | ide_std_init_ports(&hw, base, ctl); |
| 1da177e4 | 66 | hw.irq = pnp_irq(dev, 0); |
| 1da177e4 | 67 | |
| dca39830 | 68 | rc = ide_host_add(&ide_pnp_port_info, hws, 1, &host); |
| 6f904d01 BZ |
69 | if (rc) |
| 70 | goto out; | |
| cbb010c1 | 71 | |
| 6f904d01 | 72 | pnp_set_drvdata(dev, host); |
| 1da177e4 | 73 | |
| 6f904d01 BZ |
74 | return 0; |
| 75 | out: | |
| 134d4548 BZ |
76 | release_region(ctl, 1); |
| 77 | release_region(base, 8); | |
| 78 | ||
| 6f904d01 | 79 | return rc; |
| 1da177e4 LT |
80 | } |
| 81 | ||
| 177b8fe9 | 82 | static void idepnp_remove(struct pnp_dev *dev) |
| 1da177e4 | 83 | { |
| 48c3c107 | 84 | struct ide_host *host = pnp_get_drvdata(dev); |
| f82c2b17 | 85 | |
| 48c3c107 | 86 | ide_host_remove(host); |
| 134d4548 BZ |
87 | |
| 88 | release_region(pnp_port_start(dev, 1), 1); | |
| 89 | release_region(pnp_port_start(dev, 0), 8); | |
| 1da177e4 LT |
90 | } |
| 91 | ||
| 92 | static struct pnp_driver idepnp_driver = { | |
| 93 | .name = "ide", | |
| 94 | .id_table = idepnp_devices, | |
| 95 | .probe = idepnp_probe, | |
| 96 | .remove = idepnp_remove, | |
| 97 | }; | |
| 98 | ||
| 6a533309 | 99 | module_pnp_driver(idepnp_driver); |
| a62ee641 | 100 | MODULE_LICENSE("GPL"); |