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92 lines
2.1 KiB
92 lines
2.1 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* This file provides autodetection for ISA PnP IDE interfaces. |
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* It was tested with "ESS ES1868 Plug and Play AudioDrive" IDE interface. |
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* |
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* Copyright (C) 2000 Andrey Panin <[email protected]> |
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*/ |
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#include <linux/init.h> |
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#include <linux/pnp.h> |
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#include <linux/ide.h> |
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#include <linux/module.h> |
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#define DRV_NAME "ide-pnp" |
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/* Add your devices here :)) */ |
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static const struct pnp_device_id idepnp_devices[] = { |
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/* Generic ESDI/IDE/ATA compatible hard disk controller */ |
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{.id = "PNP0600", .driver_data = 0}, |
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{.id = ""} |
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}; |
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static const struct ide_port_info ide_pnp_port_info = { |
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.host_flags = IDE_HFLAG_NO_DMA, |
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.chipset = ide_generic, |
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}; |
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static int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id) |
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{ |
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struct ide_host *host; |
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unsigned long base, ctl; |
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int rc; |
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struct ide_hw hw, *hws[] = { &hw }; |
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printk(KERN_INFO DRV_NAME ": generic PnP IDE interface\n"); |
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if (!(pnp_port_valid(dev, 0) && pnp_port_valid(dev, 1) && pnp_irq_valid(dev, 0))) |
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return -1; |
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base = pnp_port_start(dev, 0); |
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ctl = pnp_port_start(dev, 1); |
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if (!request_region(base, 8, DRV_NAME)) { |
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printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n", |
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DRV_NAME, base, base + 7); |
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return -EBUSY; |
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} |
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if (!request_region(ctl, 1, DRV_NAME)) { |
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printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n", |
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DRV_NAME, ctl); |
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release_region(base, 8); |
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return -EBUSY; |
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} |
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memset(&hw, 0, sizeof(hw)); |
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ide_std_init_ports(&hw, base, ctl); |
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hw.irq = pnp_irq(dev, 0); |
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rc = ide_host_add(&ide_pnp_port_info, hws, 1, &host); |
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if (rc) |
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goto out; |
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pnp_set_drvdata(dev, host); |
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return 0; |
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out: |
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release_region(ctl, 1); |
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release_region(base, 8); |
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return rc; |
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} |
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static void idepnp_remove(struct pnp_dev *dev) |
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{ |
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struct ide_host *host = pnp_get_drvdata(dev); |
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ide_host_remove(host); |
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release_region(pnp_port_start(dev, 1), 1); |
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release_region(pnp_port_start(dev, 0), 8); |
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} |
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static struct pnp_driver idepnp_driver = { |
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.name = "ide", |
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.id_table = idepnp_devices, |
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.probe = idepnp_probe, |
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.remove = idepnp_remove, |
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}; |
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module_pnp_driver(idepnp_driver); |
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MODULE_LICENSE("GPL");
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