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1 | /* | |
2 | * Copyright (C) 2001-2002 Andre Hedrick <andre@linux-ide.org> | |
3 | * Portions (C) Copyright 2002 Red Hat Inc | |
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 | ||
31 | static bool ide_generic_all; /* Set to claim all devices */ | |
32 | ||
33 | module_param_named(all_generic_ide, ide_generic_all, bool, 0444); | |
34 | MODULE_PARM_DESC(all_generic_ide, "IDE generic will claim all unknown PCI IDE storage controllers."); | |
35 | ||
36 | static void netcell_quirkproc(ide_drive_t *drive) | |
37 | { | |
38 | /* mark words 85-87 as valid */ | |
39 | drive->id[ATA_ID_CSF_DEFAULT] |= 0x4000; | |
40 | } | |
41 | ||
42 | static const struct ide_port_ops netcell_port_ops = { | |
43 | .quirkproc = netcell_quirkproc, | |
44 | }; | |
45 | ||
46 | #define DECLARE_GENERIC_PCI_DEV(extra_flags) \ | |
47 | { \ | |
48 | .name = DRV_NAME, \ | |
49 | .host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA | \ | |
50 | extra_flags, \ | |
51 | .swdma_mask = ATA_SWDMA2, \ | |
52 | .mwdma_mask = ATA_MWDMA2, \ | |
53 | .udma_mask = ATA_UDMA6, \ | |
54 | } | |
55 | ||
56 | static const struct ide_port_info generic_chipsets[] = { | |
57 | /* 0: Unknown */ | |
58 | DECLARE_GENERIC_PCI_DEV(0), | |
59 | ||
60 | { /* 1: NS87410 */ | |
61 | .name = DRV_NAME, | |
62 | .enablebits = { {0x43, 0x08, 0x08}, {0x47, 0x08, 0x08} }, | |
63 | .host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA, | |
64 | .swdma_mask = ATA_SWDMA2, | |
65 | .mwdma_mask = ATA_MWDMA2, | |
66 | .udma_mask = ATA_UDMA6, | |
67 | }, | |
68 | ||
69 | /* 2: SAMURAI / HT6565 / HINT_IDE */ | |
70 | DECLARE_GENERIC_PCI_DEV(0), | |
71 | /* 3: UM8673F / UM8886A / UM8886BF */ | |
72 | DECLARE_GENERIC_PCI_DEV(IDE_HFLAG_NO_DMA), | |
73 | /* 4: VIA_IDE / OPTI621V / Piccolo010{2,3,5} */ | |
74 | DECLARE_GENERIC_PCI_DEV(IDE_HFLAG_NO_AUTODMA), | |
75 | ||
76 | { /* 5: VIA8237SATA */ | |
77 | .name = DRV_NAME, | |
78 | .host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA | | |
79 | IDE_HFLAG_OFF_BOARD, | |
80 | .swdma_mask = ATA_SWDMA2, | |
81 | .mwdma_mask = ATA_MWDMA2, | |
82 | .udma_mask = ATA_UDMA6, | |
83 | }, | |
84 | ||
85 | { /* 6: Revolution */ | |
86 | .name = DRV_NAME, | |
87 | .port_ops = &netcell_port_ops, | |
88 | .host_flags = IDE_HFLAG_CLEAR_SIMPLEX | | |
89 | IDE_HFLAG_TRUST_BIOS_FOR_DMA | | |
90 | IDE_HFLAG_OFF_BOARD, | |
91 | .swdma_mask = ATA_SWDMA2, | |
92 | .mwdma_mask = ATA_MWDMA2, | |
93 | .udma_mask = ATA_UDMA6, | |
94 | } | |
95 | }; | |
96 | ||
97 | /** | |
98 | * generic_init_one - called when a PIIX is found | |
99 | * @dev: the generic device | |
100 | * @id: the matching pci id | |
101 | * | |
102 | * Called when the PCI registration layer (or the IDE initialization) | |
103 | * finds a device matching our IDE device tables. | |
104 | */ | |
105 | ||
106 | static int generic_init_one(struct pci_dev *dev, const struct pci_device_id *id) | |
107 | { | |
108 | const struct ide_port_info *d = &generic_chipsets[id->driver_data]; | |
109 | int ret = -ENODEV; | |
110 | ||
111 | /* Don't use the generic entry unless instructed to do so */ | |
112 | if (id->driver_data == 0 && ide_generic_all == 0) | |
113 | goto out; | |
114 | ||
115 | switch (dev->vendor) { | |
116 | case PCI_VENDOR_ID_UMC: | |
117 | if (dev->device == PCI_DEVICE_ID_UMC_UM8886A && | |
118 | !(PCI_FUNC(dev->devfn) & 1)) | |
119 | goto out; /* UM8886A/BF pair */ | |
120 | break; | |
121 | case PCI_VENDOR_ID_OPTI: | |
122 | if (dev->device == PCI_DEVICE_ID_OPTI_82C558 && | |
123 | !(PCI_FUNC(dev->devfn) & 1)) | |
124 | goto out; | |
125 | break; | |
126 | case PCI_VENDOR_ID_JMICRON: | |
127 | if (dev->device != PCI_DEVICE_ID_JMICRON_JMB368 && | |
128 | PCI_FUNC(dev->devfn) != 1) | |
129 | goto out; | |
130 | break; | |
131 | case PCI_VENDOR_ID_NS: | |
132 | if (dev->device == PCI_DEVICE_ID_NS_87410 && | |
133 | (dev->class >> 8) != PCI_CLASS_STORAGE_IDE) | |
134 | goto out; | |
135 | break; | |
136 | } | |
137 | ||
138 | if (dev->vendor != PCI_VENDOR_ID_JMICRON) { | |
139 | u16 command; | |
140 | pci_read_config_word(dev, PCI_COMMAND, &command); | |
141 | if (!(command & PCI_COMMAND_IO)) { | |
142 | printk(KERN_INFO "%s %s: skipping disabled " | |
143 | "controller\n", d->name, pci_name(dev)); | |
144 | goto out; | |
145 | } | |
146 | } | |
147 | ret = ide_pci_init_one(dev, d, NULL); | |
148 | out: | |
149 | return ret; | |
150 | } | |
151 | ||
152 | static const struct pci_device_id generic_pci_tbl[] = { | |
153 | { PCI_VDEVICE(NS, PCI_DEVICE_ID_NS_87410), 1 }, | |
154 | { PCI_VDEVICE(PCTECH, PCI_DEVICE_ID_PCTECH_SAMURAI_IDE), 2 }, | |
155 | { PCI_VDEVICE(HOLTEK, PCI_DEVICE_ID_HOLTEK_6565), 2 }, | |
156 | { PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8673F), 3 }, | |
157 | { PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8886A), 3 }, | |
158 | { PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8886BF), 3 }, | |
159 | { PCI_VDEVICE(HINT, PCI_DEVICE_ID_HINT_VXPROII_IDE), 2 }, | |
160 | { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C561), 4 }, | |
161 | { PCI_VDEVICE(OPTI, PCI_DEVICE_ID_OPTI_82C558), 4 }, | |
162 | #ifdef CONFIG_BLK_DEV_IDE_SATA | |
163 | { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8237_SATA), 5 }, | |
164 | #endif | |
165 | { PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_1), 4 }, | |
166 | { PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_2), 4 }, | |
167 | { PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_3), 4 }, | |
168 | { PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_5), 4 }, | |
169 | { PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), 6 }, | |
170 | /* | |
171 | * Must come last. If you add entries adjust | |
172 | * this table and generic_chipsets[] appropriately. | |
173 | */ | |
174 | { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL, 0 }, | |
175 | { 0, }, | |
176 | }; | |
177 | MODULE_DEVICE_TABLE(pci, generic_pci_tbl); | |
178 | ||
179 | static struct pci_driver generic_pci_driver = { | |
180 | .name = "PCI_IDE", | |
181 | .id_table = generic_pci_tbl, | |
182 | .probe = generic_init_one, | |
183 | .remove = ide_pci_remove, | |
184 | .suspend = ide_pci_suspend, | |
185 | .resume = ide_pci_resume, | |
186 | }; | |
187 | ||
188 | static int __init generic_ide_init(void) | |
189 | { | |
190 | return ide_pci_register_driver(&generic_pci_driver); | |
191 | } | |
192 | ||
193 | static void __exit generic_ide_exit(void) | |
194 | { | |
195 | pci_unregister_driver(&generic_pci_driver); | |
196 | } | |
197 | ||
198 | module_init(generic_ide_init); | |
199 | module_exit(generic_ide_exit); | |
200 | ||
201 | MODULE_AUTHOR("Andre Hedrick"); | |
202 | MODULE_DESCRIPTION("PCI driver module for generic PCI IDE"); | |
203 | MODULE_LICENSE("GPL"); |