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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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c97c6aca75
* Add 'hw_regs_t **hws' argument to ide_device_add[_all]() and convert
host drivers + ide_legacy_init_one() + ide_setup_pci_device[s]() to use
it instead of calling ide_init_port_hw() directly.
[ However if host has > 1 port we must still set hwif->chipset to hint
consecutive ide_find_port() call that the previous slot is occupied. ]
* Unexport ide_init_port_hw().
v2:
* Use defines instead of hard-coded values in buddha.c, gayle.c and q40ide.c.
(Suggested by Geert Uytterhoeven)
* Better patch description.
v3:
* Fix build problem in ide-cs.c. (Noticed by Stephen Rothwell)
There should be no functional changes caused by this patch.
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
111 lines
2.6 KiB
C
111 lines
2.6 KiB
C
/*
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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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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* You should have received a copy of the GNU General Public License
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* (for example /usr/src/linux/COPYING); if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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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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#define DRV_NAME "ide-pnp"
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/* Add your devices here :)) */
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static 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 int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
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{
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ide_hwif_t *hwif;
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unsigned long base, ctl;
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hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL };
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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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hw.chipset = ide_generic;
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hwif = ide_find_port();
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if (hwif) {
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u8 index = hwif->index;
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u8 idx[4] = { index, 0xff, 0xff, 0xff };
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pnp_set_drvdata(dev, hwif);
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ide_device_add(idx, NULL, hws);
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return 0;
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}
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release_region(ctl, 1);
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release_region(base, 8);
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return -1;
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}
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static void idepnp_remove(struct pnp_dev *dev)
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{
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ide_hwif_t *hwif = pnp_get_drvdata(dev);
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ide_unregister(hwif);
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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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static int __init pnpide_init(void)
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{
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return pnp_register_driver(&idepnp_driver);
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}
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static void __exit pnpide_exit(void)
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{
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pnp_unregister_driver(&idepnp_driver);
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}
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module_init(pnpide_init);
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module_exit(pnpide_exit);
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MODULE_LICENSE("GPL");
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