Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * linux/drivers/ide/pci/generic.c Version 0.11 December 30, 2002 |
| 3 | * |
| 4 | * Copyright (C) 2001-2002 Andre Hedrick <andre@linux-ide.org> |
| 5 | * Portions (C) Copyright 2002 Red Hat Inc <alan@redhat.com> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify it |
| 8 | * under the terms of the GNU General Public License as published by the |
| 9 | * Free Software Foundation; either version 2, or (at your option) any |
| 10 | * later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, but |
| 13 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * General Public License for more details. |
| 16 | * |
| 17 | * For the avoidance of doubt the "preferred form" of this code is one which |
| 18 | * is in an open non patent encumbered format. Where cryptographic key signing |
| 19 | * forms part of the process of creating an executable the information |
| 20 | * including keys needed to generate an equivalently functional executable |
| 21 | * are deemed to be part of the source code. |
| 22 | */ |
| 23 | |
| 24 | #undef REALLY_SLOW_IO /* most systems can safely undef this */ |
| 25 | |
| 26 | #include <linux/config.h> /* for CONFIG_BLK_DEV_IDEPCI */ |
| 27 | #include <linux/types.h> |
| 28 | #include <linux/module.h> |
| 29 | #include <linux/kernel.h> |
| 30 | #include <linux/delay.h> |
| 31 | #include <linux/timer.h> |
| 32 | #include <linux/mm.h> |
| 33 | #include <linux/ioport.h> |
| 34 | #include <linux/blkdev.h> |
| 35 | #include <linux/hdreg.h> |
| 36 | #include <linux/pci.h> |
| 37 | #include <linux/ide.h> |
| 38 | #include <linux/init.h> |
| 39 | |
| 40 | #include <asm/io.h> |
| 41 | |
| 42 | static void __devinit init_hwif_generic (ide_hwif_t *hwif) |
| 43 | { |
| 44 | switch(hwif->pci_dev->device) { |
| 45 | case PCI_DEVICE_ID_UMC_UM8673F: |
| 46 | case PCI_DEVICE_ID_UMC_UM8886A: |
| 47 | case PCI_DEVICE_ID_UMC_UM8886BF: |
| 48 | hwif->irq = hwif->channel ? 15 : 14; |
| 49 | break; |
| 50 | default: |
| 51 | break; |
| 52 | } |
| 53 | |
| 54 | if (!(hwif->dma_base)) |
| 55 | return; |
| 56 | |
| 57 | hwif->atapi_dma = 1; |
| 58 | hwif->ultra_mask = 0x7f; |
| 59 | hwif->mwdma_mask = 0x07; |
| 60 | hwif->swdma_mask = 0x07; |
| 61 | |
| 62 | if (!noautodma) |
| 63 | hwif->autodma = 1; |
| 64 | hwif->drives[0].autodma = hwif->autodma; |
| 65 | hwif->drives[1].autodma = hwif->autodma; |
| 66 | } |
| 67 | |
| 68 | #if 0 |
| 69 | /* Logic to add back later on */ |
| 70 | |
| 71 | if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE) { |
| 72 | ide_pci_device_t *unknown = unknown_chipset; |
| 73 | init_setup_unknown(dev, unknown); |
| 74 | return 1; |
| 75 | } |
| 76 | return 0; |
| 77 | #endif |
| 78 | |
| 79 | static ide_pci_device_t generic_chipsets[] __devinitdata = { |
| 80 | { /* 0 */ |
| 81 | .name = "NS87410", |
| 82 | .init_hwif = init_hwif_generic, |
| 83 | .channels = 2, |
| 84 | .autodma = AUTODMA, |
| 85 | .enablebits = {{0x43,0x08,0x08}, {0x47,0x08,0x08}}, |
| 86 | .bootable = ON_BOARD, |
| 87 | },{ /* 1 */ |
| 88 | .name = "SAMURAI", |
| 89 | .init_hwif = init_hwif_generic, |
| 90 | .channels = 2, |
| 91 | .autodma = AUTODMA, |
| 92 | .bootable = ON_BOARD, |
| 93 | },{ /* 2 */ |
| 94 | .name = "HT6565", |
| 95 | .init_hwif = init_hwif_generic, |
| 96 | .channels = 2, |
| 97 | .autodma = AUTODMA, |
| 98 | .bootable = ON_BOARD, |
| 99 | },{ /* 3 */ |
| 100 | .name = "UM8673F", |
| 101 | .init_hwif = init_hwif_generic, |
| 102 | .channels = 2, |
| 103 | .autodma = NODMA, |
| 104 | .bootable = ON_BOARD, |
| 105 | },{ /* 4 */ |
| 106 | .name = "UM8886A", |
| 107 | .init_hwif = init_hwif_generic, |
| 108 | .channels = 2, |
| 109 | .autodma = NODMA, |
| 110 | .bootable = ON_BOARD, |
| 111 | },{ /* 5 */ |
| 112 | .name = "UM8886BF", |
| 113 | .init_hwif = init_hwif_generic, |
| 114 | .channels = 2, |
| 115 | .autodma = NODMA, |
| 116 | .bootable = ON_BOARD, |
| 117 | },{ /* 6 */ |
| 118 | .name = "HINT_IDE", |
| 119 | .init_hwif = init_hwif_generic, |
| 120 | .channels = 2, |
| 121 | .autodma = AUTODMA, |
| 122 | .bootable = ON_BOARD, |
| 123 | },{ /* 7 */ |
| 124 | .name = "VIA_IDE", |
| 125 | .init_hwif = init_hwif_generic, |
| 126 | .channels = 2, |
| 127 | .autodma = NOAUTODMA, |
| 128 | .bootable = ON_BOARD, |
| 129 | },{ /* 8 */ |
| 130 | .name = "OPTI621V", |
| 131 | .init_hwif = init_hwif_generic, |
| 132 | .channels = 2, |
| 133 | .autodma = NOAUTODMA, |
| 134 | .bootable = ON_BOARD, |
| 135 | },{ /* 9 */ |
| 136 | .name = "VIA8237SATA", |
| 137 | .init_hwif = init_hwif_generic, |
| 138 | .channels = 2, |
| 139 | .autodma = AUTODMA, |
| 140 | .bootable = OFF_BOARD, |
| 141 | },{ /* 10 */ |
| 142 | .name = "Piccolo0102", |
| 143 | .init_hwif = init_hwif_generic, |
| 144 | .channels = 2, |
| 145 | .autodma = NOAUTODMA, |
| 146 | .bootable = ON_BOARD, |
| 147 | },{ /* 11 */ |
| 148 | .name = "Piccolo0103", |
| 149 | .init_hwif = init_hwif_generic, |
| 150 | .channels = 2, |
| 151 | .autodma = NOAUTODMA, |
| 152 | .bootable = ON_BOARD, |
| 153 | },{ /* 12 */ |
| 154 | .name = "Piccolo0105", |
| 155 | .init_hwif = init_hwif_generic, |
| 156 | .channels = 2, |
| 157 | .autodma = NOAUTODMA, |
| 158 | .bootable = ON_BOARD, |
| 159 | } |
| 160 | }; |
| 161 | |
| 162 | /** |
| 163 | * generic_init_one - called when a PIIX is found |
| 164 | * @dev: the generic device |
| 165 | * @id: the matching pci id |
| 166 | * |
| 167 | * Called when the PCI registration layer (or the IDE initialization) |
| 168 | * finds a device matching our IDE device tables. |
| 169 | */ |
| 170 | |
| 171 | static int __devinit generic_init_one(struct pci_dev *dev, const struct pci_device_id *id) |
| 172 | { |
| 173 | ide_pci_device_t *d = &generic_chipsets[id->driver_data]; |
| 174 | u16 command; |
| 175 | int ret = -ENODEV; |
| 176 | |
| 177 | if (dev->vendor == PCI_VENDOR_ID_UMC && |
| 178 | dev->device == PCI_DEVICE_ID_UMC_UM8886A && |
| 179 | (!(PCI_FUNC(dev->devfn) & 1))) |
| 180 | goto out; /* UM8886A/BF pair */ |
| 181 | |
| 182 | if (dev->vendor == PCI_VENDOR_ID_OPTI && |
| 183 | dev->device == PCI_DEVICE_ID_OPTI_82C558 && |
| 184 | (!(PCI_FUNC(dev->devfn) & 1))) |
| 185 | goto out; |
| 186 | |
| 187 | pci_read_config_word(dev, PCI_COMMAND, &command); |
| 188 | if (!(command & PCI_COMMAND_IO)) { |
| 189 | printk(KERN_INFO "Skipping disabled %s IDE controller.\n", d->name); |
| 190 | goto out; |
| 191 | } |
| 192 | ret = ide_setup_pci_device(dev, d); |
| 193 | out: |
| 194 | return ret; |
| 195 | } |
| 196 | |
| 197 | static struct pci_device_id generic_pci_tbl[] = { |
| 198 | { PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87410, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, |
| 199 | { PCI_VENDOR_ID_PCTECH, PCI_DEVICE_ID_PCTECH_SAMURAI_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1}, |
| 200 | { PCI_VENDOR_ID_HOLTEK, PCI_DEVICE_ID_HOLTEK_6565, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2}, |
| 201 | { PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8673F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3}, |
| 202 | { PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8886A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4}, |
| 203 | { PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8886BF, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5}, |
| 204 | { PCI_VENDOR_ID_HINT, PCI_DEVICE_ID_HINT_VXPROII_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6}, |
| 205 | { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C561, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7}, |
| 206 | { PCI_VENDOR_ID_OPTI, PCI_DEVICE_ID_OPTI_82C558, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8}, |
| 207 | #ifdef CONFIG_BLK_DEV_IDE_SATA |
| 208 | { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237_SATA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9}, |
| 209 | #endif |
| 210 | { PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 10}, |
| 211 | { PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 11}, |
| 212 | { PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 12}, |
| 213 | { 0, }, |
| 214 | }; |
| 215 | MODULE_DEVICE_TABLE(pci, generic_pci_tbl); |
| 216 | |
| 217 | static struct pci_driver driver = { |
| 218 | .name = "PCI_IDE", |
| 219 | .id_table = generic_pci_tbl, |
| 220 | .probe = generic_init_one, |
| 221 | }; |
| 222 | |
| 223 | static int generic_ide_init(void) |
| 224 | { |
| 225 | return ide_pci_register_driver(&driver); |
| 226 | } |
| 227 | |
| 228 | module_init(generic_ide_init); |
| 229 | |
| 230 | MODULE_AUTHOR("Andre Hedrick"); |
| 231 | MODULE_DESCRIPTION("PCI driver module for generic PCI IDE"); |
| 232 | MODULE_LICENSE("GPL"); |