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- // SPDX-License-Identifier: GPL-2.0-or-later
- /*
- * 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>
- */
- #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 const 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,
- };
- module_pnp_driver(idepnp_driver);
- MODULE_LICENSE("GPL");
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