generic.c 6.0 KB
Newer Older
L
Linus Torvalds 已提交
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
/*
 *  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/hdreg.h>
#include <linux/pci.h>
#include <linux/ide.h>
#include <linux/init.h>

30 31
static int ide_generic_all;		/* Set to claim all devices */

32 33
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.");
34

35
#define IDE_HFLAGS_UMC (IDE_HFLAG_NO_DMA | IDE_HFLAG_FORCE_LEGACY_IRQS)
L
Linus Torvalds 已提交
36

37
#define DECLARE_GENERIC_PCI_DEV(name_str, extra_flags) \
38 39
	{ \
		.name		= name_str, \
40
		.host_flags	= IDE_HFLAG_TRUST_BIOS_FOR_DMA | \
41
				  extra_flags, \
42 43 44
		.swdma_mask	= ATA_SWDMA2, \
		.mwdma_mask	= ATA_MWDMA2, \
		.udma_mask	= ATA_UDMA6, \
L
Linus Torvalds 已提交
45 46
	}

47
static const struct ide_port_info generic_chipsets[] __devinitdata = {
48
	/*  0 */ DECLARE_GENERIC_PCI_DEV("Unknown",	0),
49 50

	{	/* 1 */
L
Linus Torvalds 已提交
51
		.name		= "NS87410",
52
		.enablebits	= { {0x43, 0x08, 0x08}, {0x47, 0x08, 0x08} },
53
		.host_flags	= IDE_HFLAG_TRUST_BIOS_FOR_DMA,
54 55 56
		.swdma_mask	= ATA_SWDMA2,
		.mwdma_mask	= ATA_MWDMA2,
		.udma_mask	= ATA_UDMA6,
57 58
	},

59 60
	/*  2 */ DECLARE_GENERIC_PCI_DEV("SAMURAI",	0),
	/*  3 */ DECLARE_GENERIC_PCI_DEV("HT6565",	0),
61 62 63
	/*  4 */ DECLARE_GENERIC_PCI_DEV("UM8673F",	IDE_HFLAGS_UMC),
	/*  5 */ DECLARE_GENERIC_PCI_DEV("UM8886A",	IDE_HFLAGS_UMC),
	/*  6 */ DECLARE_GENERIC_PCI_DEV("UM8886BF",	IDE_HFLAGS_UMC),
64 65 66
	/*  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),
67 68

	{	/* 10 */
L
Linus Torvalds 已提交
69
		.name		= "VIA8237SATA",
70 71
		.host_flags	= IDE_HFLAG_TRUST_BIOS_FOR_DMA |
				  IDE_HFLAG_OFF_BOARD,
72 73 74
		.swdma_mask	= ATA_SWDMA2,
		.mwdma_mask	= ATA_MWDMA2,
		.udma_mask	= ATA_UDMA6,
75 76
	},

77 78 79
	/* 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),
80 81

	{	/* 14 */
82
		.name		= "Revolution",
83 84
		.host_flags	= IDE_HFLAG_CLEAR_SIMPLEX |
				  IDE_HFLAG_TRUST_BIOS_FOR_DMA |
85
				  IDE_HFLAG_OFF_BOARD,
86 87 88
		.swdma_mask	= ATA_SWDMA2,
		.mwdma_mask	= ATA_MWDMA2,
		.udma_mask	= ATA_UDMA6,
L
Linus Torvalds 已提交
89 90 91 92 93 94 95 96 97 98 99
	}
};

/**
 *	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.
 */
100

L
Linus Torvalds 已提交
101 102
static int __devinit generic_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
103
	const struct ide_port_info *d = &generic_chipsets[id->driver_data];
L
Linus Torvalds 已提交
104 105
	int ret = -ENODEV;

106 107 108 109
	/* Don't use the generic entry unless instructed to do so */
	if (id->driver_data == 0 && ide_generic_all == 0)
			goto out;

110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128
	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)
A
Alan Cox 已提交
129
			goto out;
130
		break;
A
Alan Cox 已提交
131
	}
A
Alan Cox 已提交
132

A
Alan Cox 已提交
133
	if (dev->vendor != PCI_VENDOR_ID_JMICRON) {
134
		u16 command;
A
Alan Cox 已提交
135 136
		pci_read_config_word(dev, PCI_COMMAND, &command);
		if (!(command & PCI_COMMAND_IO)) {
137 138
			printk(KERN_INFO "Skipping disabled %s IDE "
					"controller.\n", d->name);
A
Alan Cox 已提交
139 140
			goto out;
		}
L
Linus Torvalds 已提交
141 142 143 144 145 146
	}
	ret = ide_setup_pci_device(dev, d);
out:
	return ret;
}

147 148 149 150 151 152 153 154 155 156
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 },
L
Linus Torvalds 已提交
157
#ifdef CONFIG_BLK_DEV_IDE_SATA
158
	{ PCI_VDEVICE(VIA,	PCI_DEVICE_ID_VIA_8237_SATA),		10 },
L
Linus Torvalds 已提交
159
#endif
160 161 162 163 164 165 166 167 168
	{ 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 },
L
Linus Torvalds 已提交
169 170 171 172 173 174 175 176 177 178
	{ 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,
};

179
static int __init generic_ide_init(void)
L
Linus Torvalds 已提交
180 181 182 183 184 185 186 187 188
{
	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");