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Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 20 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520170858.552543146@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
93 lines
2.1 KiB
C
93 lines
2.1 KiB
C
// 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 <pazke@donpac.ru>
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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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