113 lines
2.6 KiB
C
113 lines
2.6 KiB
C
/*
|
|
* This file provides autodetection for ISA PnP IDE interfaces.
|
|
* It was tested with "ESS ES1868 Plug and Play AudioDrive" IDE interface.
|
|
*
|
|
* Copyright (C) 2000 Andrey Panin <pazke@donpac.ru>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2, or (at your option)
|
|
* any later version.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* (for example /usr/src/linux/COPYING); if not, write to the Free
|
|
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/pnp.h>
|
|
#include <linux/ide.h>
|
|
#include <linux/module.h>
|
|
|
|
#define DRV_NAME "ide-pnp"
|
|
|
|
/* Add your devices here :)) */
|
|
static struct pnp_device_id idepnp_devices[] = {
|
|
/* Generic ESDI/IDE/ATA compatible hard disk controller */
|
|
{.id = "PNP0600", .driver_data = 0},
|
|
{.id = ""}
|
|
};
|
|
|
|
static const struct ide_port_info ide_pnp_port_info = {
|
|
.host_flags = IDE_HFLAG_NO_DMA,
|
|
.chipset = ide_generic,
|
|
};
|
|
|
|
static int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
|
|
{
|
|
struct ide_host *host;
|
|
unsigned long base, ctl;
|
|
int rc;
|
|
struct ide_hw hw, *hws[] = { &hw };
|
|
|
|
printk(KERN_INFO DRV_NAME ": generic PnP IDE interface\n");
|
|
|
|
if (!(pnp_port_valid(dev, 0) && pnp_port_valid(dev, 1) && pnp_irq_valid(dev, 0)))
|
|
return -1;
|
|
|
|
base = pnp_port_start(dev, 0);
|
|
ctl = pnp_port_start(dev, 1);
|
|
|
|
if (!request_region(base, 8, DRV_NAME)) {
|
|
printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
|
|
DRV_NAME, base, base + 7);
|
|
return -EBUSY;
|
|
}
|
|
|
|
if (!request_region(ctl, 1, DRV_NAME)) {
|
|
printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
|
|
DRV_NAME, ctl);
|
|
release_region(base, 8);
|
|
return -EBUSY;
|
|
}
|
|
|
|
memset(&hw, 0, sizeof(hw));
|
|
ide_std_init_ports(&hw, base, ctl);
|
|
hw.irq = pnp_irq(dev, 0);
|
|
|
|
rc = ide_host_add(&ide_pnp_port_info, hws, 1, &host);
|
|
if (rc)
|
|
goto out;
|
|
|
|
pnp_set_drvdata(dev, host);
|
|
|
|
return 0;
|
|
out:
|
|
release_region(ctl, 1);
|
|
release_region(base, 8);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void idepnp_remove(struct pnp_dev *dev)
|
|
{
|
|
struct ide_host *host = pnp_get_drvdata(dev);
|
|
|
|
ide_host_remove(host);
|
|
|
|
release_region(pnp_port_start(dev, 1), 1);
|
|
release_region(pnp_port_start(dev, 0), 8);
|
|
}
|
|
|
|
static struct pnp_driver idepnp_driver = {
|
|
.name = "ide",
|
|
.id_table = idepnp_devices,
|
|
.probe = idepnp_probe,
|
|
.remove = idepnp_remove,
|
|
};
|
|
|
|
static int __init pnpide_init(void)
|
|
{
|
|
return pnp_register_driver(&idepnp_driver);
|
|
}
|
|
|
|
static void __exit pnpide_exit(void)
|
|
{
|
|
pnp_unregister_driver(&idepnp_driver);
|
|
}
|
|
|
|
module_init(pnpide_init);
|
|
module_exit(pnpide_exit);
|
|
|
|
MODULE_LICENSE("GPL");
|