[mirror_ubuntu-zesty-kernel.git] / drivers / ide / ide-pnp.c

/*
 * 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");
Commit	Line	Data
1da177e4	1	/*
1da177e4 LT	2	* This file provides autodetection for ISA PnP IDE interfaces.
	3	* It was tested with "ESS ES1868 Plug and Play AudioDrive" IDE interface.
	4	*
	5	* Copyright (C) 2000 Andrey Panin <pazke@donpac.ru>
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published by
	9	* the Free Software Foundation; either version 2, or (at your option)
	10	* any later version.
	11	*
	12	* You should have received a copy of the GNU General Public License
	13	* (for example /usr/src/linux/COPYING); if not, write to the Free
177b8fe9	14	* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
1da177e4 LT	15	*/
	16
	17	#include <linux/init.h>
	18	#include <linux/pnp.h>
	19	#include <linux/ide.h>
	20
134d4548 BZ	21	#define DRV_NAME "ide-pnp"
134d4548 BZ	22
1da177e4 LT	23	/* Add your devices here :)) */
1da177e4 LT	24	static struct pnp_device_id idepnp_devices[] = {
177b8fe9	25	/* Generic ESDI/IDE/ATA compatible hard disk controller */
1da177e4 LT	26	{.id = "PNP0600", .driver_data = 0},
	27	{.id = ""}
	28	};
	29
177b8fe9	30	static int idepnp_probe(struct pnp_dev dev, const struct pnp_device_id dev_id)
1da177e4 LT	31	{
	32	hw_regs_t hw;
	33	ide_hwif_t *hwif;
134d4548	34	unsigned long base, ctl;
1da177e4 LT	35
	36	if (!(pnp_port_valid(dev, 0) && pnp_port_valid(dev, 1) && pnp_irq_valid(dev, 0)))
	37	return -1;
	38
134d4548 BZ	39	base = pnp_port_start(dev, 0);
	40	ctl = pnp_port_start(dev, 1);
	41
	42	if (!request_region(base, 8, DRV_NAME)) {
	43	printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
	44	DRV_NAME, base, base + 7);
	45	return -EBUSY;
	46	}
	47
	48	if (!request_region(ctl, 1, DRV_NAME)) {
	49	printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
	50	DRV_NAME, ctl);
	51	release_region(base, 8);
	52	return -EBUSY;
	53	}
	54
1da177e4	55	memset(&hw, 0, sizeof(hw));
134d4548	56	ide_std_init_ports(&hw, base, ctl);
1da177e4	57	hw.irq = pnp_irq(dev, 0);
d427e836	58	hw.chipset = ide_generic;
1da177e4	59
59bff5ba	60	hwif = ide_find_port();
cbb010c1 BZ	61	if (hwif) {
cbb010c1 BZ	62	u8 index = hwif->index;
8ac4ce74	63	u8 idx[4] = { index, 0xff, 0xff, 0xff };
cbb010c1 BZ	64
	65	ide_init_port_data(hwif, index);
	66	ide_init_port_hw(hwif, &hw);
1da177e4	67
cbb010c1	68	printk(KERN_INFO "ide%d: generic PnP IDE interface\n", index);
177b8fe9	69	pnp_set_drvdata(dev, hwif);
8ac4ce74	70
c413b9b9	71	ide_device_add(idx, NULL);
8ac4ce74	72
1da177e4 LT	73	return 0;
	74	}
	75
134d4548 BZ	76	release_region(ctl, 1);
	77	release_region(base, 8);
	78
1da177e4 LT	79	return -1;
	80	}
	81
177b8fe9	82	static void idepnp_remove(struct pnp_dev *dev)
1da177e4 LT	83	{
1da177e4 LT	84	ide_hwif_t *hwif = pnp_get_drvdata(dev);
f82c2b17	85
387750c3	86	ide_unregister(hwif);
134d4548 BZ	87
	88	release_region(pnp_port_start(dev, 1), 1);
	89	release_region(pnp_port_start(dev, 0), 8);
1da177e4 LT	90	}
	91
	92	static struct pnp_driver idepnp_driver = {
	93	.name = "ide",
	94	.id_table = idepnp_devices,
	95	.probe = idepnp_probe,
	96	.remove = idepnp_remove,
	97	};
	98
ade2daf9	99	static int __init pnpide_init(void)
1da177e4	100	{
ade2daf9	101	return pnp_register_driver(&idepnp_driver);
1da177e4	102	}
6855036a	103
ade2daf9	104	static void __exit pnpide_exit(void)
6855036a TH	105	{
	106	pnp_unregister_driver(&idepnp_driver);
	107	}
ade2daf9 BZ	108
	109	module_init(pnpide_init);
	110	module_exit(pnpide_exit);
a62ee641 AB	111
a62ee641 AB	112	MODULE_LICENSE("GPL");