generic.c 7.57 KB
Newer Older
Linus Torvalds's avatar
Linus Torvalds committed
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 30 31 32 33 34 35 36 37 38 39 40 41
/*
 *  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.
 */

#undef REALLY_SLOW_IO		/* most systems can safely undef this */

#include <linux/config.h> /* for CONFIG_BLK_DEV_IDEPCI */
#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>

42 43 44 45 46 47 48 49 50 51 52
static int ide_generic_all;		/* Set to claim all devices */

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);

Linus Torvalds's avatar
Linus Torvalds committed
53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91
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->atapi_dma = 1;
	hwif->ultra_mask = 0x7f;
	hwif->mwdma_mask = 0x07;
	hwif->swdma_mask = 0x07;

	if (!noautodma)
		hwif->autodma = 1;
	hwif->drives[0].autodma = hwif->autodma;
	hwif->drives[1].autodma = hwif->autodma;
}

#if 0
	/* Logic to add back later on */

	if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE) {
		ide_pci_device_t *unknown = unknown_chipset;
		init_setup_unknown(dev, unknown);
		return 1;
	}
	return 0;
#endif	

static ide_pci_device_t generic_chipsets[] __devinitdata = {
	{	/* 0 */
92 93 94 95 96 97
		.name		= "Unknown",
		.init_hwif	= init_hwif_generic,
		.channels	= 2,
		.autodma	= AUTODMA,
		.bootable	= ON_BOARD,
	},{	/* 1 */
Linus Torvalds's avatar
Linus Torvalds committed
98 99 100 101 102 103
		.name		= "NS87410",
		.init_hwif	= init_hwif_generic,
		.channels	= 2,
		.autodma	= AUTODMA,
		.enablebits	= {{0x43,0x08,0x08}, {0x47,0x08,0x08}},
		.bootable	= ON_BOARD,
104
        },{	/* 2 */
Linus Torvalds's avatar
Linus Torvalds committed
105 106 107 108 109
		.name		= "SAMURAI",
		.init_hwif	= init_hwif_generic,
		.channels	= 2,
		.autodma	= AUTODMA,
		.bootable	= ON_BOARD,
110
	},{	/* 3 */
Linus Torvalds's avatar
Linus Torvalds committed
111 112 113 114 115
		.name		= "HT6565",
		.init_hwif	= init_hwif_generic,
		.channels	= 2,
		.autodma	= AUTODMA,
		.bootable	= ON_BOARD,
116
	},{	/* 4 */
Linus Torvalds's avatar
Linus Torvalds committed
117 118 119 120 121
		.name		= "UM8673F",
		.init_hwif	= init_hwif_generic,
		.channels	= 2,
		.autodma	= NODMA,
		.bootable	= ON_BOARD,
122
	},{	/* 5 */
Linus Torvalds's avatar
Linus Torvalds committed
123 124 125 126 127
		.name		= "UM8886A",
		.init_hwif	= init_hwif_generic,
		.channels	= 2,
		.autodma	= NODMA,
		.bootable	= ON_BOARD,
128
	},{	/* 6 */
Linus Torvalds's avatar
Linus Torvalds committed
129 130 131 132 133
		.name		= "UM8886BF",
		.init_hwif	= init_hwif_generic,
		.channels	= 2,
		.autodma	= NODMA,
		.bootable	= ON_BOARD,
134
	},{	/* 7 */
Linus Torvalds's avatar
Linus Torvalds committed
135 136 137 138 139
		.name		= "HINT_IDE",
		.init_hwif	= init_hwif_generic,
		.channels	= 2,
		.autodma	= AUTODMA,
		.bootable	= ON_BOARD,
140
	},{	/* 8 */
Linus Torvalds's avatar
Linus Torvalds committed
141 142 143 144 145
		.name		= "VIA_IDE",
		.init_hwif	= init_hwif_generic,
		.channels	= 2,
		.autodma	= NOAUTODMA,
		.bootable	= ON_BOARD,
146
	},{	/* 9 */
Linus Torvalds's avatar
Linus Torvalds committed
147 148 149 150 151
		.name		= "OPTI621V",
		.init_hwif	= init_hwif_generic,
		.channels	= 2,
		.autodma	= NOAUTODMA,
		.bootable	= ON_BOARD,
152
	},{	/* 10 */
Linus Torvalds's avatar
Linus Torvalds committed
153 154 155 156 157
		.name		= "VIA8237SATA",
		.init_hwif	= init_hwif_generic,
		.channels	= 2,
		.autodma	= AUTODMA,
		.bootable	= OFF_BOARD,
158
	},{	/* 11 */
Linus Torvalds's avatar
Linus Torvalds committed
159 160 161 162 163
		.name 		= "Piccolo0102",
		.init_hwif	= init_hwif_generic,
		.channels	= 2,
		.autodma	= NOAUTODMA,
		.bootable	= ON_BOARD,
164
	},{	/* 12 */
Linus Torvalds's avatar
Linus Torvalds committed
165 166 167 168 169
		.name 		= "Piccolo0103",
		.init_hwif	= init_hwif_generic,
		.channels	= 2,
		.autodma	= NOAUTODMA,
		.bootable	= ON_BOARD,
170
	},{	/* 13 */
Linus Torvalds's avatar
Linus Torvalds committed
171 172 173 174 175
		.name 		= "Piccolo0105",
		.init_hwif	= init_hwif_generic,
		.channels	= 2,
		.autodma	= NOAUTODMA,
		.bootable	= ON_BOARD,
176 177 178 179 180 181
	},{	/* 14 */
		.name		= "Revolution",
		.init_hwif	= init_hwif_generic,
		.channels	= 2,
		.autodma	= AUTODMA,
		.bootable	= OFF_BOARD,
Linus Torvalds's avatar
Linus Torvalds committed
182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199
	}
};

/**
 *	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];
	u16 command;
	int ret = -ENODEV;

200 201 202 203
	/* Don't use the generic entry unless instructed to do so */
	if (id->driver_data == 0 && ide_generic_all == 0)
			goto out;

Linus Torvalds's avatar
Linus Torvalds committed
204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224
	if (dev->vendor == PCI_VENDOR_ID_UMC &&
	    dev->device == PCI_DEVICE_ID_UMC_UM8886A &&
	    (!(PCI_FUNC(dev->devfn) & 1)))
		goto out; /* UM8886A/BF pair */

	if (dev->vendor == PCI_VENDOR_ID_OPTI &&
	    dev->device == PCI_DEVICE_ID_OPTI_82C558 &&
	    (!(PCI_FUNC(dev->devfn) & 1)))
		goto out;

	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 struct pci_device_id generic_pci_tbl[] = {
225 226 227 228 229 230 231 232 233
	{ PCI_VENDOR_ID_NS,     PCI_DEVICE_ID_NS_87410,            PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
	{ PCI_VENDOR_ID_PCTECH, PCI_DEVICE_ID_PCTECH_SAMURAI_IDE,  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
	{ PCI_VENDOR_ID_HOLTEK, PCI_DEVICE_ID_HOLTEK_6565,         PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
	{ PCI_VENDOR_ID_UMC,    PCI_DEVICE_ID_UMC_UM8673F,         PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
	{ PCI_VENDOR_ID_UMC,    PCI_DEVICE_ID_UMC_UM8886A,         PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
	{ PCI_VENDOR_ID_UMC,    PCI_DEVICE_ID_UMC_UM8886BF,        PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6},
	{ PCI_VENDOR_ID_HINT,   PCI_DEVICE_ID_HINT_VXPROII_IDE,    PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7},
	{ PCI_VENDOR_ID_VIA,    PCI_DEVICE_ID_VIA_82C561,          PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8},
	{ PCI_VENDOR_ID_OPTI,   PCI_DEVICE_ID_OPTI_82C558,         PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9},
Linus Torvalds's avatar
Linus Torvalds committed
234
#ifdef CONFIG_BLK_DEV_IDE_SATA
235
	{ PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_8237_SATA,	   PCI_ANY_ID, PCI_ANY_ID, 0, 0, 10},
Linus Torvalds's avatar
Linus Torvalds committed
236
#endif
237 238 239
	{ PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO,     PCI_ANY_ID, PCI_ANY_ID, 0, 0, 11},
	{ PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_1,   PCI_ANY_ID, PCI_ANY_ID, 0, 0, 12},
	{ PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_2,   PCI_ANY_ID, PCI_ANY_ID, 0, 0, 13},
240
	{ PCI_VENDOR_ID_NETCELL,PCI_DEVICE_ID_REVOLUTION,          PCI_ANY_ID, PCI_ANY_ID, 0, 0, 14},
241 242
	/* Must come last. If you add entries adjust this table appropriately and the init_one code */
	{ PCI_ANY_ID,		PCI_ANY_ID,			   PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL, 0},
Linus Torvalds's avatar
Linus Torvalds committed
243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262
	{ 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 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");