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Diffstat (limited to 'drivers/ide/ide-pci-generic.c')
-rw-r--r--drivers/ide/ide-pci-generic.c193
1 files changed, 193 insertions, 0 deletions
diff --git a/drivers/ide/ide-pci-generic.c b/drivers/ide/ide-pci-generic.c
new file mode 100644
index 000000000000..474f96a7c076
--- /dev/null
+++ b/drivers/ide/ide-pci-generic.c
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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/pci.h>
26#include <linux/ide.h>
27#include <linux/init.h>
28
29#define DRV_NAME "ide_pci_generic"
30
31static int ide_generic_all; /* Set to claim all devices */
32
33module_param_named(all_generic_ide, ide_generic_all, bool, 0444);
34MODULE_PARM_DESC(all_generic_ide, "IDE generic will claim all unknown PCI IDE storage controllers.");
35
36#define IDE_HFLAGS_UMC (IDE_HFLAG_NO_DMA | IDE_HFLAG_FORCE_LEGACY_IRQS)
37
38#define DECLARE_GENERIC_PCI_DEV(extra_flags) \
39 { \
40 .name = DRV_NAME, \
41 .host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA | \
42 extra_flags, \
43 .swdma_mask = ATA_SWDMA2, \
44 .mwdma_mask = ATA_MWDMA2, \
45 .udma_mask = ATA_UDMA6, \
46 }
47
48static const struct ide_port_info generic_chipsets[] __devinitdata = {
49 /* 0: Unknown */
50 DECLARE_GENERIC_PCI_DEV(0),
51
52 { /* 1: NS87410 */
53 .name = DRV_NAME,
54 .enablebits = { {0x43, 0x08, 0x08}, {0x47, 0x08, 0x08} },
55 .host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
56 .swdma_mask = ATA_SWDMA2,
57 .mwdma_mask = ATA_MWDMA2,
58 .udma_mask = ATA_UDMA6,
59 },
60
61 /* 2: SAMURAI / HT6565 / HINT_IDE */
62 DECLARE_GENERIC_PCI_DEV(0),
63 /* 3: UM8673F / UM8886A / UM8886BF */
64 DECLARE_GENERIC_PCI_DEV(IDE_HFLAGS_UMC),
65 /* 4: VIA_IDE / OPTI621V / Piccolo010{2,3,5} */
66 DECLARE_GENERIC_PCI_DEV(IDE_HFLAG_NO_AUTODMA),
67
68 { /* 5: VIA8237SATA */
69 .name = DRV_NAME,
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 { /* 6: Revolution */
78 .name = DRV_NAME,
79 .host_flags = IDE_HFLAG_CLEAR_SIMPLEX |
80 IDE_HFLAG_TRUST_BIOS_FOR_DMA |
81 IDE_HFLAG_OFF_BOARD,
82 .swdma_mask = ATA_SWDMA2,
83 .mwdma_mask = ATA_MWDMA2,
84 .udma_mask = ATA_UDMA6,
85 }
86};
87
88/**
89 * generic_init_one - called when a PIIX is found
90 * @dev: the generic device
91 * @id: the matching pci id
92 *
93 * Called when the PCI registration layer (or the IDE initialization)
94 * finds a device matching our IDE device tables.
95 */
96
97static int __devinit generic_init_one(struct pci_dev *dev, const struct pci_device_id *id)
98{
99 const struct ide_port_info *d = &generic_chipsets[id->driver_data];
100 int ret = -ENODEV;
101
102 /* Don't use the generic entry unless instructed to do so */
103 if (id->driver_data == 0 && ide_generic_all == 0)
104 goto out;
105
106 switch (dev->vendor) {
107 case PCI_VENDOR_ID_UMC:
108 if (dev->device == PCI_DEVICE_ID_UMC_UM8886A &&
109 !(PCI_FUNC(dev->devfn) & 1))
110 goto out; /* UM8886A/BF pair */
111 break;
112 case PCI_VENDOR_ID_OPTI:
113 if (dev->device == PCI_DEVICE_ID_OPTI_82C558 &&
114 !(PCI_FUNC(dev->devfn) & 1))
115 goto out;
116 break;
117 case PCI_VENDOR_ID_JMICRON:
118 if (dev->device != PCI_DEVICE_ID_JMICRON_JMB368 &&
119 PCI_FUNC(dev->devfn) != 1)
120 goto out;
121 break;
122 case PCI_VENDOR_ID_NS:
123 if (dev->device == PCI_DEVICE_ID_NS_87410 &&
124 (dev->class >> 8) != PCI_CLASS_STORAGE_IDE)
125 goto out;
126 break;
127 }
128
129 if (dev->vendor != PCI_VENDOR_ID_JMICRON) {
130 u16 command;
131 pci_read_config_word(dev, PCI_COMMAND, &command);
132 if (!(command & PCI_COMMAND_IO)) {
133 printk(KERN_INFO "%s %s: skipping disabled "
134 "controller\n", d->name, pci_name(dev));
135 goto out;
136 }
137 }
138 ret = ide_pci_init_one(dev, d, NULL);
139out:
140 return ret;
141}
142
143static const struct pci_device_id generic_pci_tbl[] = {
144 { PCI_VDEVICE(NS, PCI_DEVICE_ID_NS_87410), 1 },
145 { PCI_VDEVICE(PCTECH, PCI_DEVICE_ID_PCTECH_SAMURAI_IDE), 2 },
146 { PCI_VDEVICE(HOLTEK, PCI_DEVICE_ID_HOLTEK_6565), 2 },
147 { PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8673F), 3 },
148 { PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8886A), 3 },
149 { PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8886BF), 3 },
150 { PCI_VDEVICE(HINT, PCI_DEVICE_ID_HINT_VXPROII_IDE), 2 },
151 { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C561), 4 },
152 { PCI_VDEVICE(OPTI, PCI_DEVICE_ID_OPTI_82C558), 4 },
153#ifdef CONFIG_BLK_DEV_IDE_SATA
154 { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8237_SATA), 5 },
155#endif
156 { PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO), 4 },
157 { PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_1), 4 },
158 { PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_2), 4 },
159 { PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), 6 },
160 /*
161 * Must come last. If you add entries adjust
162 * this table and generic_chipsets[] appropriately.
163 */
164 { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL, 0 },
165 { 0, },
166};
167MODULE_DEVICE_TABLE(pci, generic_pci_tbl);
168
169static struct pci_driver generic_pci_driver = {
170 .name = "PCI_IDE",
171 .id_table = generic_pci_tbl,
172 .probe = generic_init_one,
173 .remove = ide_pci_remove,
174 .suspend = ide_pci_suspend,
175 .resume = ide_pci_resume,
176};
177
178static int __init generic_ide_init(void)
179{
180 return ide_pci_register_driver(&generic_pci_driver);
181}
182
183static void __exit generic_ide_exit(void)
184{
185 pci_unregister_driver(&generic_pci_driver);
186}
187
188module_init(generic_ide_init);
189module_exit(generic_ide_exit);
190
191MODULE_AUTHOR("Andre Hedrick");
192MODULE_DESCRIPTION("PCI driver module for generic PCI IDE");
193MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2026-01-06 11:23:08 -0500