[linux-2.6-block.git] / drivers / ide / pci / generic.c

/*
 *  linux/drivers/ide/pci/generic.c	Version 0.11	December 30, 2002
 *
 *  Copyright (C) 2001-2002	Andre Hedrick <andre@linux-ide.org>
 *  Portions (C) Copyright 2002  Red Hat Inc <alan@redhat.com>
 *
 * 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.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * For the avoidance of doubt the "preferred form" of this code is one which
 * is in an open non patent encumbered format. Where cryptographic key signing
 * forms part of the process of creating an executable the information
 * including keys needed to generate an equivalently functional executable
 * are deemed to be part of the source code.
 */

#include <linux/types.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/timer.h>
#include <linux/mm.h>
#include <linux/ioport.h>
#include <linux/blkdev.h>
#include <linux/hdreg.h>
#include <linux/pci.h>
#include <linux/ide.h>
#include <linux/init.h>

#include <asm/io.h>

static int ide_generic_all;		/* Set to claim all devices */

/*
 * the module_param_named() was added for the modular case
 * the __setup() is left as compatibility for existing setups
 */
#ifndef MODULE
static int __init ide_generic_all_on(char *unused)
{
	ide_generic_all = 1;
	printk(KERN_INFO "IDE generic will claim all unknown PCI IDE storage controllers.\n");
	return 1;
}
__setup("all-generic-ide", ide_generic_all_on);
#endif
module_param_named(all_generic_ide, ide_generic_all, bool, 0444);
MODULE_PARM_DESC(all_generic_ide, "IDE generic will claim all unknown PCI IDE storage controllers.");

static void __devinit init_hwif_generic (ide_hwif_t *hwif)
{
	switch(hwif->pci_dev->device) {
		case PCI_DEVICE_ID_UMC_UM8673F:
		case PCI_DEVICE_ID_UMC_UM8886A:
		case PCI_DEVICE_ID_UMC_UM8886BF:
			hwif->irq = hwif->channel ? 15 : 14;
			break;
		default:
			break;
	}

	if (!(hwif->dma_base))
		return;

	hwif->ultra_mask = 0x7f;
	hwif->mwdma_mask = 0x07;
	hwif->swdma_mask = 0x07;
}

#define DECLARE_GENERIC_PCI_DEV(name_str, dma_setting) \
	{ \
		.name		= name_str, \
		.init_hwif	= init_hwif_generic, \
		.host_flags	= IDE_HFLAG_TRUST_BIOS_FOR_DMA | \
				  dma_setting | \
				  IDE_HFLAG_BOOTABLE, \
	}

static ide_pci_device_t generic_chipsets[] __devinitdata = {
	/*  0 */ DECLARE_GENERIC_PCI_DEV("Unknown",	0),

	{	/* 1 */
		.name		= "NS87410",
		.init_hwif	= init_hwif_generic,
		.enablebits	= {{0x43,0x08,0x08}, {0x47,0x08,0x08}},
		.host_flags	= IDE_HFLAG_TRUST_BIOS_FOR_DMA |
				  IDE_HFLAG_BOOTABLE,
	},

	/*  2 */ DECLARE_GENERIC_PCI_DEV("SAMURAI",	0),
	/*  3 */ DECLARE_GENERIC_PCI_DEV("HT6565",	0),
	/*  4 */ DECLARE_GENERIC_PCI_DEV("UM8673F",	IDE_HFLAG_NO_DMA),
	/*  5 */ DECLARE_GENERIC_PCI_DEV("UM8886A",	IDE_HFLAG_NO_DMA),
	/*  6 */ DECLARE_GENERIC_PCI_DEV("UM8886BF",	IDE_HFLAG_NO_DMA),
	/*  7 */ DECLARE_GENERIC_PCI_DEV("HINT_IDE",	0),
	/*  8 */ DECLARE_GENERIC_PCI_DEV("VIA_IDE",	IDE_HFLAG_NO_AUTODMA),
	/*  9 */ DECLARE_GENERIC_PCI_DEV("OPTI621V",	IDE_HFLAG_NO_AUTODMA),

	{	/* 10 */
		.name		= "VIA8237SATA",
		.init_hwif	= init_hwif_generic,
		.host_flags	= IDE_HFLAG_TRUST_BIOS_FOR_DMA |
				  IDE_HFLAG_OFF_BOARD,
	},

	/* 11 */ DECLARE_GENERIC_PCI_DEV("Piccolo0102",	IDE_HFLAG_NO_AUTODMA),
	/* 12 */ DECLARE_GENERIC_PCI_DEV("Piccolo0103",	IDE_HFLAG_NO_AUTODMA),
	/* 13 */ DECLARE_GENERIC_PCI_DEV("Piccolo0105",	IDE_HFLAG_NO_AUTODMA),

	{	/* 14 */
		.name		= "Revolution",
		.init_hwif	= init_hwif_generic,
		.host_flags	= IDE_HFLAG_TRUST_BIOS_FOR_DMA |
				  IDE_HFLAG_OFF_BOARD,
	}
};

/**
 *	generic_init_one	-	called when a PIIX is found
 *	@dev: the generic device
 *	@id: the matching pci id
 *
 *	Called when the PCI registration layer (or the IDE initialization)
 *	finds a device matching our IDE device tables.
 */
 
static int __devinit generic_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
	ide_pci_device_t *d = &generic_chipsets[id->driver_data];
	int ret = -ENODEV;

	/* Don't use the generic entry unless instructed to do so */
	if (id->driver_data == 0 && ide_generic_all == 0)
			goto out;

	switch (dev->vendor) {
	case PCI_VENDOR_ID_UMC:
		if (dev->device == PCI_DEVICE_ID_UMC_UM8886A &&
				!(PCI_FUNC(dev->devfn) & 1))
			goto out; /* UM8886A/BF pair */
		break;
	case PCI_VENDOR_ID_OPTI:
		if (dev->device == PCI_DEVICE_ID_OPTI_82C558 &&
				!(PCI_FUNC(dev->devfn) & 1))
			goto out;
		break;
	case PCI_VENDOR_ID_JMICRON:
		if (dev->device != PCI_DEVICE_ID_JMICRON_JMB368 &&
				PCI_FUNC(dev->devfn) != 1)
			goto out;
		break;
	case PCI_VENDOR_ID_NS:
		if (dev->device == PCI_DEVICE_ID_NS_87410 &&
				(dev->class >> 8) != PCI_CLASS_STORAGE_IDE)
			goto out;
		break;
	}

	if (dev->vendor != PCI_VENDOR_ID_JMICRON) {
		u16 command;
		pci_read_config_word(dev, PCI_COMMAND, &command);
		if (!(command & PCI_COMMAND_IO)) {
			printk(KERN_INFO "Skipping disabled %s IDE "
					"controller.\n", d->name);
			goto out;
		}
	}
	ret = ide_setup_pci_device(dev, d);
out:
	return ret;
}

static const struct pci_device_id generic_pci_tbl[] = {
	{ PCI_VDEVICE(NS,	PCI_DEVICE_ID_NS_87410),		 1 },
	{ PCI_VDEVICE(PCTECH,	PCI_DEVICE_ID_PCTECH_SAMURAI_IDE),	 2 },
	{ PCI_VDEVICE(HOLTEK,	PCI_DEVICE_ID_HOLTEK_6565),		 3 },
	{ PCI_VDEVICE(UMC,	PCI_DEVICE_ID_UMC_UM8673F),		 4 },
	{ PCI_VDEVICE(UMC,	PCI_DEVICE_ID_UMC_UM8886A),		 5 },
	{ PCI_VDEVICE(UMC,	PCI_DEVICE_ID_UMC_UM8886BF),		 6 },
	{ PCI_VDEVICE(HINT,	PCI_DEVICE_ID_HINT_VXPROII_IDE),	 7 },
	{ PCI_VDEVICE(VIA,	PCI_DEVICE_ID_VIA_82C561),		 8 },
	{ PCI_VDEVICE(OPTI,	PCI_DEVICE_ID_OPTI_82C558),		 9 },
#ifdef CONFIG_BLK_DEV_IDE_SATA
	{ PCI_VDEVICE(VIA,	PCI_DEVICE_ID_VIA_8237_SATA),		10 },
#endif
	{ PCI_VDEVICE(TOSHIBA,	PCI_DEVICE_ID_TOSHIBA_PICCOLO),		11 },
	{ PCI_VDEVICE(TOSHIBA,	PCI_DEVICE_ID_TOSHIBA_PICCOLO_1),	12 },
	{ PCI_VDEVICE(TOSHIBA,	PCI_DEVICE_ID_TOSHIBA_PICCOLO_2),	13 },
	{ PCI_VDEVICE(NETCELL,	PCI_DEVICE_ID_REVOLUTION),		14 },
	/*
	 * Must come last.  If you add entries adjust
	 * this table and generic_chipsets[] appropriately.
	 */
	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL, 0 },
	{ 0, },
};
MODULE_DEVICE_TABLE(pci, generic_pci_tbl);

static struct pci_driver driver = {
	.name		= "PCI_IDE",
	.id_table	= generic_pci_tbl,
	.probe		= generic_init_one,
};

static int __init generic_ide_init(void)
{
	return ide_pci_register_driver(&driver);
}

module_init(generic_ide_init);

MODULE_AUTHOR("Andre Hedrick");
MODULE_DESCRIPTION("PCI driver module for generic PCI IDE");
MODULE_LICENSE("GPL");
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/drivers/ide/pci/generic.c Version 0.11 December 30, 2002
	3	*
	4	* Copyright (C) 2001-2002 Andre Hedrick <andre@linux-ide.org>
	5	* Portions (C) Copyright 2002 Red Hat Inc <alan@redhat.com>
	6	*
	7	* This program is free software; you can redistribute it and/or modify it
	8	* under the terms of the GNU General Public License as published by the
	9	* Free Software Foundation; either version 2, or (at your option) any
	10	* later version.
	11	*
	12	* This program is distributed in the hope that it will be useful, but
	13	* WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	15	* General Public License for more details.
	16	*
	17	* For the avoidance of doubt the "preferred form" of this code is one which
	18	* is in an open non patent encumbered format. Where cryptographic key signing
	19	* forms part of the process of creating an executable the information
	20	* including keys needed to generate an equivalently functional executable
	21	* are deemed to be part of the source code.
	22	*/
	23
1da177e4 LT	24	#include <linux/types.h>
	25	#include <linux/module.h>
	26	#include <linux/kernel.h>
	27	#include <linux/delay.h>
	28	#include <linux/timer.h>
	29	#include <linux/mm.h>
	30	#include <linux/ioport.h>
	31	#include <linux/blkdev.h>
	32	#include <linux/hdreg.h>
	33	#include <linux/pci.h>
	34	#include <linux/ide.h>
	35	#include <linux/init.h>
	36
	37	#include <asm/io.h>
	38
b189346c AC	39	static int ide_generic_all; /* Set to claim all devices */
b189346c AC	40
3c5473f8 AB	41	/*
	42	* the module_param_named() was added for the modular case
	43	* the __setup() is left as compatibility for existing setups
	44	*/
	45	#ifndef MODULE
	46	static int __init ide_generic_all_on(char *unused)
	47	{
	48	ide_generic_all = 1;
2b52c959	49	printk(KERN_INFO "IDE generic will claim all unknown PCI IDE storage controllers.\n");
3c5473f8 AB	50	return 1;
	51	}
	52	__setup("all-generic-ide", ide_generic_all_on);
	53	#endif
a4bea10e PJ	54	module_param_named(all_generic_ide, ide_generic_all, bool, 0444);
a4bea10e PJ	55	MODULE_PARM_DESC(all_generic_ide, "IDE generic will claim all unknown PCI IDE storage controllers.");
b189346c	56
1da177e4 LT	57	static void __devinit init_hwif_generic (ide_hwif_t *hwif)
	58	{
	59	switch(hwif->pci_dev->device) {
	60	case PCI_DEVICE_ID_UMC_UM8673F:
	61	case PCI_DEVICE_ID_UMC_UM8886A:
	62	case PCI_DEVICE_ID_UMC_UM8886BF:
	63	hwif->irq = hwif->channel ? 15 : 14;
	64	break;
	65	default:
	66	break;
	67	}
	68
	69	if (!(hwif->dma_base))
	70	return;
	71
1da177e4 LT	72	hwif->ultra_mask = 0x7f;
	73	hwif->mwdma_mask = 0x07;
	74	hwif->swdma_mask = 0x07;
1da177e4 LT	75	}
1da177e4 LT	76
1c3dd326 BZ	77	#define DECLARE_GENERIC_PCI_DEV(name_str, dma_setting) \
	78	{ \
	79	.name = name_str, \
	80	.init_hwif = init_hwif_generic, \
7cab14a7	81	.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA \| \
47b68788	82	dma_setting \| \
7cab14a7	83	IDE_HFLAG_BOOTABLE, \
1da177e4	84	}
1da177e4 LT	85
1da177e4 LT	86	static ide_pci_device_t generic_chipsets[] __devinitdata = {
47b68788	87	/* 0 */ DECLARE_GENERIC_PCI_DEV("Unknown", 0),
1c3dd326 BZ	88
1c3dd326 BZ	89	{ /* 1 */
1da177e4 LT	90	.name = "NS87410",
1da177e4 LT	91	.init_hwif = init_hwif_generic,
1da177e4	92	.enablebits = {{0x43,0x08,0x08}, {0x47,0x08,0x08}},
7cab14a7 BZ	93	.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA \|
7cab14a7 BZ	94	IDE_HFLAG_BOOTABLE,
1c3dd326 BZ	95	},
1c3dd326 BZ	96
47b68788 BZ	97	/* 2 */ DECLARE_GENERIC_PCI_DEV("SAMURAI", 0),
	98	/* 3 */ DECLARE_GENERIC_PCI_DEV("HT6565", 0),
	99	/* 4 */ DECLARE_GENERIC_PCI_DEV("UM8673F", IDE_HFLAG_NO_DMA),
	100	/* 5 */ DECLARE_GENERIC_PCI_DEV("UM8886A", IDE_HFLAG_NO_DMA),
	101	/* 6 */ DECLARE_GENERIC_PCI_DEV("UM8886BF", IDE_HFLAG_NO_DMA),
	102	/* 7 */ DECLARE_GENERIC_PCI_DEV("HINT_IDE", 0),
	103	/* 8 */ DECLARE_GENERIC_PCI_DEV("VIA_IDE", IDE_HFLAG_NO_AUTODMA),
	104	/* 9 */ DECLARE_GENERIC_PCI_DEV("OPTI621V", IDE_HFLAG_NO_AUTODMA),
1c3dd326 BZ	105
1c3dd326 BZ	106	{ /* 10 */
1da177e4 LT	107	.name = "VIA8237SATA",
1da177e4 LT	108	.init_hwif = init_hwif_generic,
7cab14a7 BZ	109	.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA \|
7cab14a7 BZ	110	IDE_HFLAG_OFF_BOARD,
1c3dd326 BZ	111	},
1c3dd326 BZ	112
47b68788 BZ	113	/* 11 */ DECLARE_GENERIC_PCI_DEV("Piccolo0102", IDE_HFLAG_NO_AUTODMA),
	114	/* 12 */ DECLARE_GENERIC_PCI_DEV("Piccolo0103", IDE_HFLAG_NO_AUTODMA),
	115	/* 13 */ DECLARE_GENERIC_PCI_DEV("Piccolo0105", IDE_HFLAG_NO_AUTODMA),
1c3dd326 BZ	116
1c3dd326 BZ	117	{ /* 14 */
2f09a7f4 MG	118	.name = "Revolution",
2f09a7f4 MG	119	.init_hwif = init_hwif_generic,
7cab14a7 BZ	120	.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA \|
7cab14a7 BZ	121	IDE_HFLAG_OFF_BOARD,
1da177e4 LT	122	}
	123	};
	124
	125	/**
	126	* generic_init_one - called when a PIIX is found
	127	* @dev: the generic device
	128	* @id: the matching pci id
	129	*
	130	* Called when the PCI registration layer (or the IDE initialization)
	131	* finds a device matching our IDE device tables.
	132	*/
	133
	134	static int __devinit generic_init_one(struct pci_dev dev, const struct pci_device_id id)
	135	{
	136	ide_pci_device_t *d = &generic_chipsets[id->driver_data];
1da177e4 LT	137	int ret = -ENODEV;
1da177e4 LT	138
b189346c AC	139	/* Don't use the generic entry unless instructed to do so */
	140	if (id->driver_data == 0 && ide_generic_all == 0)
	141	goto out;
	142
ea307596 JS	143	switch (dev->vendor) {
	144	case PCI_VENDOR_ID_UMC:
	145	if (dev->device == PCI_DEVICE_ID_UMC_UM8886A &&
	146	!(PCI_FUNC(dev->devfn) & 1))
	147	goto out; /* UM8886A/BF pair */
	148	break;
	149	case PCI_VENDOR_ID_OPTI:
	150	if (dev->device == PCI_DEVICE_ID_OPTI_82C558 &&
	151	!(PCI_FUNC(dev->devfn) & 1))
	152	goto out;
	153	break;
	154	case PCI_VENDOR_ID_JMICRON:
	155	if (dev->device != PCI_DEVICE_ID_JMICRON_JMB368 &&
	156	PCI_FUNC(dev->devfn) != 1)
	157	goto out;
	158	break;
	159	case PCI_VENDOR_ID_NS:
	160	if (dev->device == PCI_DEVICE_ID_NS_87410 &&
	161	(dev->class >> 8) != PCI_CLASS_STORAGE_IDE)
c333526f	162	goto out;
ea307596	163	break;
c333526f	164	}
15e0c694	165
3719bc5c	166	if (dev->vendor != PCI_VENDOR_ID_JMICRON) {
ea307596	167	u16 command;
3719bc5c AC	168	pci_read_config_word(dev, PCI_COMMAND, &command);
3719bc5c AC	169	if (!(command & PCI_COMMAND_IO)) {
ea307596 JS	170	printk(KERN_INFO "Skipping disabled %s IDE "
ea307596 JS	171	"controller.\n", d->name);
3719bc5c AC	172	goto out;
3719bc5c AC	173	}
1da177e4 LT	174	}
	175	ret = ide_setup_pci_device(dev, d);
	176	out:
	177	return ret;
	178	}
	179
9cbcc5e3 BZ	180	static const struct pci_device_id generic_pci_tbl[] = {
	181	{ PCI_VDEVICE(NS, PCI_DEVICE_ID_NS_87410), 1 },
	182	{ PCI_VDEVICE(PCTECH, PCI_DEVICE_ID_PCTECH_SAMURAI_IDE), 2 },
	183	{ PCI_VDEVICE(HOLTEK, PCI_DEVICE_ID_HOLTEK_6565), 3 },
	184	{ PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8673F), 4 },
	185	{ PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8886A), 5 },
	186	{ PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8886BF), 6 },
	187	{ PCI_VDEVICE(HINT, PCI_DEVICE_ID_HINT_VXPROII_IDE), 7 },
	188	{ PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C561), 8 },
	189	{ PCI_VDEVICE(OPTI, PCI_DEVICE_ID_OPTI_82C558), 9 },
1da177e4	190	#ifdef CONFIG_BLK_DEV_IDE_SATA
9cbcc5e3	191	{ PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8237_SATA), 10 },
1da177e4	192	#endif
9cbcc5e3 BZ	193	{ PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO), 11 },
	194	{ PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_1), 12 },
	195	{ PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_2), 13 },
	196	{ PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), 14 },
	197	/*
	198	* Must come last. If you add entries adjust
	199	* this table and generic_chipsets[] appropriately.
	200	*/
	201	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL, 0 },
1da177e4 LT	202	{ 0, },
	203	};
	204	MODULE_DEVICE_TABLE(pci, generic_pci_tbl);
	205
	206	static struct pci_driver driver = {
	207	.name = "PCI_IDE",
	208	.id_table = generic_pci_tbl,
	209	.probe = generic_init_one,
	210	};
	211
82ab1eec	212	static int __init generic_ide_init(void)
1da177e4 LT	213	{
	214	return ide_pci_register_driver(&driver);
	215	}
	216
	217	module_init(generic_ide_init);
	218
	219	MODULE_AUTHOR("Andre Hedrick");
	220	MODULE_DESCRIPTION("PCI driver module for generic PCI IDE");
	221	MODULE_LICENSE("GPL");