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/*
* 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>
#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 int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
{
hw_regs_t hw;
ide_hwif_t *hwif;
unsigned long base, ctl;
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);
hw.chipset = ide_generic;
hwif = ide_find_port();
if (hwif) {
u8 index = hwif->index;
u8 idx[4] = { index, 0xff, 0xff, 0xff };
ide_init_port_data(hwif, index);
ide_init_port_hw(hwif, &hw);
printk(KERN_INFO "ide%d: generic PnP IDE interface\n", index);
pnp_set_drvdata(dev, hwif);
ide_device_add(idx, NULL);
return 0;
}
release_region(ctl, 1);
release_region(base, 8);
return -1;
}
static void idepnp_remove(struct pnp_dev *dev)
{
ide_hwif_t *hwif = pnp_get_drvdata(dev);
ide_unregister(hwif);
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");
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