[GitHub/mt8127/android_kernel_alcatel_ttab.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>
#include <linux/module.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 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,
};

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>
bff7832d	20	#include <linux/module.h>
1da177e4	21
134d4548 BZ	22	#define DRV_NAME "ide-pnp"
134d4548 BZ	23
1da177e4 LT	24	/* Add your devices here :)) */
1da177e4 LT	25	static struct pnp_device_id idepnp_devices[] = {
177b8fe9	26	/* Generic ESDI/IDE/ATA compatible hard disk controller */
1da177e4 LT	27	{.id = "PNP0600", .driver_data = 0},
	28	{.id = ""}
	29	};
	30
ee1464a4 BZ	31	static const struct ide_port_info ide_pnp_port_info = {
ee1464a4 BZ	32	.host_flags = IDE_HFLAG_NO_DMA,
29e52cf7	33	.chipset = ide_generic,
ee1464a4 BZ	34	};
ee1464a4 BZ	35
177b8fe9	36	static int idepnp_probe(struct pnp_dev dev, const struct pnp_device_id dev_id)
1da177e4	37	{
48c3c107	38	struct ide_host *host;
134d4548	39	unsigned long base, ctl;
6f904d01	40	int rc;
9f36d314	41	struct ide_hw hw, *hws[] = { &hw };
1da177e4	42
e193c3e1 BZ	43	printk(KERN_INFO DRV_NAME ": generic PnP IDE interface\n");
e193c3e1 BZ	44
1da177e4 LT	45	if (!(pnp_port_valid(dev, 0) && pnp_port_valid(dev, 1) && pnp_irq_valid(dev, 0)))
	46	return -1;
	47
134d4548 BZ	48	base = pnp_port_start(dev, 0);
	49	ctl = pnp_port_start(dev, 1);
	50
	51	if (!request_region(base, 8, DRV_NAME)) {
	52	printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
	53	DRV_NAME, base, base + 7);
	54	return -EBUSY;
	55	}
	56
	57	if (!request_region(ctl, 1, DRV_NAME)) {
	58	printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
	59	DRV_NAME, ctl);
	60	release_region(base, 8);
	61	return -EBUSY;
	62	}
	63
1da177e4	64	memset(&hw, 0, sizeof(hw));
134d4548	65	ide_std_init_ports(&hw, base, ctl);
1da177e4	66	hw.irq = pnp_irq(dev, 0);
1da177e4	67
dca39830	68	rc = ide_host_add(&ide_pnp_port_info, hws, 1, &host);
6f904d01 BZ	69	if (rc)
6f904d01 BZ	70	goto out;
cbb010c1	71
6f904d01	72	pnp_set_drvdata(dev, host);
1da177e4	73
6f904d01 BZ	74	return 0;
6f904d01 BZ	75	out:
134d4548 BZ	76	release_region(ctl, 1);
	77	release_region(base, 8);
	78
6f904d01	79	return rc;
1da177e4 LT	80	}
1da177e4 LT	81
177b8fe9	82	static void idepnp_remove(struct pnp_dev *dev)
1da177e4	83	{
48c3c107	84	struct ide_host *host = pnp_get_drvdata(dev);
f82c2b17	85
48c3c107	86	ide_host_remove(host);
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");