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 31static bool 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 36static 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 42static 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 56static 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 106static 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); 148out: 149 return ret; 150} 151 152static 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}; 177MODULE_DEVICE_TABLE(pci, generic_pci_tbl); 178 179static 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 188static int __init generic_ide_init(void) 189{ 190 return ide_pci_register_driver(&generic_pci_driver); 191} 192 193static void __exit generic_ide_exit(void) 194{ 195 pci_unregister_driver(&generic_pci_driver); 196} 197 198module_init(generic_ide_init); 199module_exit(generic_ide_exit); 200 201MODULE_AUTHOR("Andre Hedrick"); 202MODULE_DESCRIPTION("PCI driver module for generic PCI IDE"); 203MODULE_LICENSE("GPL"); 204