tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright (C) 2001-2002 Andre Hedrick <andre@linux-ide.org>
3 * Portions (C) Copyright 2002 Red Hat Inc <alan@redhat.com>
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2, or (at your option) any
8 * later version.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * For the avoidance of doubt the "preferred form" of this code is one which
16 * is in an open non patent encumbered format. Where cryptographic key signing
17 * forms part of the process of creating an executable the information
18 * including keys needed to generate an equivalently functional executable
19 * are deemed to be part of the source code.
20 */
21
22#include <linux/types.h>
23#include <linux/module.h>
24#include <linux/kernel.h>
25#include <linux/hdreg.h>
26#include <linux/pci.h>
27#include <linux/ide.h>
28#include <linux/init.h>
29
30static int ide_generic_all; /* Set to claim all devices */
31
32module_param_named(all_generic_ide, ide_generic_all, bool, 0444);
33MODULE_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)
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 .swdma_mask = ATA_SWDMA2, \
43 .mwdma_mask = ATA_MWDMA2, \
44 .udma_mask = ATA_UDMA6, \
45 }
46
47static const struct ide_port_info generic_chipsets[] __devinitdata = {
48 /* 0 */ DECLARE_GENERIC_PCI_DEV("Unknown", 0),
49
50 { /* 1 */
51 .name = "NS87410",
52 .enablebits = { {0x43, 0x08, 0x08}, {0x47, 0x08, 0x08} },
53 .host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
54 .swdma_mask = ATA_SWDMA2,
55 .mwdma_mask = ATA_MWDMA2,
56 .udma_mask = ATA_UDMA6,
57 },
58
59 /* 2 */ DECLARE_GENERIC_PCI_DEV("SAMURAI", 0),
60 /* 3 */ DECLARE_GENERIC_PCI_DEV("HT6565", 0),
61 /* 4 */ DECLARE_GENERIC_PCI_DEV("UM8673F", IDE_HFLAGS_UMC),
62 /* 5 */ DECLARE_GENERIC_PCI_DEV("UM8886A", IDE_HFLAGS_UMC),
63 /* 6 */ DECLARE_GENERIC_PCI_DEV("UM8886BF", IDE_HFLAGS_UMC),
64 /* 7 */ DECLARE_GENERIC_PCI_DEV("HINT_IDE", 0),
65 /* 8 */ DECLARE_GENERIC_PCI_DEV("VIA_IDE", IDE_HFLAG_NO_AUTODMA),
66 /* 9 */ DECLARE_GENERIC_PCI_DEV("OPTI621V", IDE_HFLAG_NO_AUTODMA),
67
68 { /* 10 */
69 .name = "VIA8237SATA",
70 .host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA |
71 IDE_HFLAG_OFF_BOARD,
72 .swdma_mask = ATA_SWDMA2,
73 .mwdma_mask = ATA_MWDMA2,
74 .udma_mask = ATA_UDMA6,
75 },
76
77 /* 11 */ DECLARE_GENERIC_PCI_DEV("Piccolo0102", IDE_HFLAG_NO_AUTODMA),
78 /* 12 */ DECLARE_GENERIC_PCI_DEV("Piccolo0103", IDE_HFLAG_NO_AUTODMA),
79 /* 13 */ DECLARE_GENERIC_PCI_DEV("Piccolo0105", IDE_HFLAG_NO_AUTODMA),
80
81 { /* 14 */
82 .name = "Revolution",
83 .host_flags = IDE_HFLAG_CLEAR_SIMPLEX |
84 IDE_HFLAG_TRUST_BIOS_FOR_DMA |
85 IDE_HFLAG_OFF_BOARD,
86 .swdma_mask = ATA_SWDMA2,
87 .mwdma_mask = ATA_MWDMA2,
88 .udma_mask = ATA_UDMA6,
89 }
90};
91
92/**
93 * generic_init_one - called when a PIIX is found
94 * @dev: the generic device
95 * @id: the matching pci id
96 *
97 * Called when the PCI registration layer (or the IDE initialization)
98 * finds a device matching our IDE device tables.
99 */
100
101static int __devinit generic_init_one(struct pci_dev *dev, const struct pci_device_id *id)
102{
103 const struct ide_port_info *d = &generic_chipsets[id->driver_data];
104 int ret = -ENODEV;
105
106 /* Don't use the generic entry unless instructed to do so */
107 if (id->driver_data == 0 && ide_generic_all == 0)
108 goto out;
109
110 switch (dev->vendor) {
111 case PCI_VENDOR_ID_UMC:
112 if (dev->device == PCI_DEVICE_ID_UMC_UM8886A &&
113 !(PCI_FUNC(dev->devfn) & 1))
114 goto out; /* UM8886A/BF pair */
115 break;
116 case PCI_VENDOR_ID_OPTI:
117 if (dev->device == PCI_DEVICE_ID_OPTI_82C558 &&
118 !(PCI_FUNC(dev->devfn) & 1))
119 goto out;
120 break;
121 case PCI_VENDOR_ID_JMICRON:
122 if (dev->device != PCI_DEVICE_ID_JMICRON_JMB368 &&
123 PCI_FUNC(dev->devfn) != 1)
124 goto out;
125 break;
126 case PCI_VENDOR_ID_NS:
127 if (dev->device == PCI_DEVICE_ID_NS_87410 &&
128 (dev->class >> 8) != PCI_CLASS_STORAGE_IDE)
129 goto out;
130 break;
131 }
132
133 if (dev->vendor != PCI_VENDOR_ID_JMICRON) {
134 u16 command;
135 pci_read_config_word(dev, PCI_COMMAND, &command);
136 if (!(command & PCI_COMMAND_IO)) {
137 printk(KERN_INFO "Skipping disabled %s IDE "
138 "controller.\n", d->name);
139 goto out;
140 }
141 }
142 ret = ide_setup_pci_device(dev, d);
143out:
144 return ret;
145}
146
147static const struct pci_device_id generic_pci_tbl[] = {
148 { PCI_VDEVICE(NS, PCI_DEVICE_ID_NS_87410), 1 },
149 { PCI_VDEVICE(PCTECH, PCI_DEVICE_ID_PCTECH_SAMURAI_IDE), 2 },
150 { PCI_VDEVICE(HOLTEK, PCI_DEVICE_ID_HOLTEK_6565), 3 },
151 { PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8673F), 4 },
152 { PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8886A), 5 },
153 { PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8886BF), 6 },
154 { PCI_VDEVICE(HINT, PCI_DEVICE_ID_HINT_VXPROII_IDE), 7 },
155 { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C561), 8 },
156 { PCI_VDEVICE(OPTI, PCI_DEVICE_ID_OPTI_82C558), 9 },
157#ifdef CONFIG_BLK_DEV_IDE_SATA
158 { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8237_SATA), 10 },
159#endif
160 { PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO), 11 },
161 { PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_1), 12 },
162 { PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_2), 13 },
163 { PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), 14 },
164 /*
165 * Must come last. If you add entries adjust
166 * this table and generic_chipsets[] appropriately.
167 */
168 { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL, 0 },
169 { 0, },
170};
171MODULE_DEVICE_TABLE(pci, generic_pci_tbl);
172
173static struct pci_driver driver = {
174 .name = "PCI_IDE",
175 .id_table = generic_pci_tbl,
176 .probe = generic_init_one,
177};
178
179static int __init generic_ide_init(void)
180{
181 return ide_pci_register_driver(&driver);
182}
183
184module_init(generic_ide_init);
185
186MODULE_AUTHOR("Andre Hedrick");
187MODULE_DESCRIPTION("PCI driver module for generic PCI IDE");
188MODULE_LICENSE("GPL");