drivers/ide/pci/generic.c

   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 #include <linux/types.h>
  25 #include <linux/module.h>
  26 #include <linux/kernel.h>
  27 #include <linux/delay.h>
  28 #include <linux/timer.h>
  29 #include <linux/mm.h>
  30 #include <linux/ioport.h>
  31 #include <linux/blkdev.h>
  32 #include <linux/hdreg.h>
  33 #include <linux/pci.h>
  34 #include <linux/ide.h>
  35 #include <linux/init.h>
  36
  37 #include <asm/io.h>
  38
  39 static int ide_generic_all;             /* Set to claim all devices */
  40
  41 /*
  42  * the module_param_named() was added for the modular case
  43  * the __setup() is left as compatibility for existing setups
  44  */
  45 #ifndef MODULE
  46 static int __init ide_generic_all_on(char *unused)
  47 {
  48         ide_generic_all = 1;
  49         printk(KERN_INFO "IDE generic will claim all unknown PCI IDE storage controllers.\n");
  50         return 1;
  51 }
  52 __setup("all-generic-ide", ide_generic_all_on);
  53 #endif
  54 module_param_named(all_generic_ide, ide_generic_all, bool, 0444);
  55 MODULE_PARM_DESC(all_generic_ide, "IDE generic will claim all unknown PCI IDE storage controllers.");
  56
  57 static void __devinit init_hwif_generic (ide_hwif_t *hwif)
  58 {
  59         switch(hwif->pci_dev->device) {
  60                 case PCI_DEVICE_ID_UMC_UM8673F:
  61                 case PCI_DEVICE_ID_UMC_UM8886A:
  62                 case PCI_DEVICE_ID_UMC_UM8886BF:
  63                         hwif->irq = hwif->channel ? 15 : 14;
  64                         break;
  65                 default:
  66                         break;
  67         }
  68
  69         if (!(hwif->dma_base))
  70                 return;
  71
  72         hwif->atapi_dma = 1;
  73         hwif->ultra_mask = 0x7f;
  74         hwif->mwdma_mask = 0x07;
  75         hwif->swdma_mask = 0x07;
  76 }
  77
  78 #if 0
  79         /* Logic to add back later on */
  80
  81         if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE) {
  82                 ide_pci_device_t *unknown = unknown_chipset;
  83                 init_setup_unknown(dev, unknown);
  84                 return 1;
  85         }
  86         return 0;
  87 #endif
  88
  89 static ide_pci_device_t generic_chipsets[] __devinitdata = {
  90         {       /* 0 */
  91                 .name           = "Unknown",
  92                 .init_hwif      = init_hwif_generic,
  93                 .autodma        = AUTODMA,
  94                 .bootable       = ON_BOARD,
  95                 .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
  96         },{     /* 1 */
  97                 .name           = "NS87410",
  98                 .init_hwif      = init_hwif_generic,
  99                 .autodma        = AUTODMA,
 100                 .enablebits     = {{0x43,0x08,0x08}, {0x47,0x08,0x08}},
 101                 .bootable       = ON_BOARD,
 102                 .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
 103         },{     /* 2 */
 104                 .name           = "SAMURAI",
 105                 .init_hwif      = init_hwif_generic,
 106                 .autodma        = AUTODMA,
 107                 .bootable       = ON_BOARD,
 108                 .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
 109         },{     /* 3 */
 110                 .name           = "HT6565",
 111                 .init_hwif      = init_hwif_generic,
 112                 .autodma        = AUTODMA,
 113                 .bootable       = ON_BOARD,
 114                 .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
 115         },{     /* 4 */
 116                 .name           = "UM8673F",
 117                 .init_hwif      = init_hwif_generic,
 118                 .autodma        = NODMA,
 119                 .bootable       = ON_BOARD,
 120                 .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
 121         },{     /* 5 */
 122                 .name           = "UM8886A",
 123                 .init_hwif      = init_hwif_generic,
 124                 .autodma        = NODMA,
 125                 .bootable       = ON_BOARD,
 126                 .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
 127         },{     /* 6 */
 128                 .name           = "UM8886BF",
 129                 .init_hwif      = init_hwif_generic,
 130                 .autodma        = NODMA,
 131                 .bootable       = ON_BOARD,
 132                 .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
 133         },{     /* 7 */
 134                 .name           = "HINT_IDE",
 135                 .init_hwif      = init_hwif_generic,
 136                 .autodma        = AUTODMA,
 137                 .bootable       = ON_BOARD,
 138                 .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
 139         },{     /* 8 */
 140                 .name           = "VIA_IDE",
 141                 .init_hwif      = init_hwif_generic,
 142                 .autodma        = NOAUTODMA,
 143                 .bootable       = ON_BOARD,
 144                 .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
 145         },{     /* 9 */
 146                 .name           = "OPTI621V",
 147                 .init_hwif      = init_hwif_generic,
 148                 .autodma        = NOAUTODMA,
 149                 .bootable       = ON_BOARD,
 150                 .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
 151         },{     /* 10 */
 152                 .name           = "VIA8237SATA",
 153                 .init_hwif      = init_hwif_generic,
 154                 .autodma        = AUTODMA,
 155                 .bootable       = OFF_BOARD,
 156                 .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
 157         },{     /* 11 */
 158                 .name           = "Piccolo0102",
 159                 .init_hwif      = init_hwif_generic,
 160                 .autodma        = NOAUTODMA,
 161                 .bootable       = ON_BOARD,
 162                 .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
 163         },{     /* 12 */
 164                 .name           = "Piccolo0103",
 165                 .init_hwif      = init_hwif_generic,
 166                 .autodma        = NOAUTODMA,
 167                 .bootable       = ON_BOARD,
 168                 .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
 169         },{     /* 13 */
 170                 .name           = "Piccolo0105",
 171                 .init_hwif      = init_hwif_generic,
 172                 .autodma        = NOAUTODMA,
 173                 .bootable       = ON_BOARD,
 174                 .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
 175         },{     /* 14 */
 176                 .name           = "Revolution",
 177                 .init_hwif      = init_hwif_generic,
 178                 .autodma        = AUTODMA,
 179                 .bootable       = OFF_BOARD,
 180                 .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
 181         }
 182 };
 183
 184 /**
 185  *      generic_init_one        -       called when a PIIX is found
 186  *      @dev: the generic device
 187  *      @id: the matching pci id
 188  *
 189  *      Called when the PCI registration layer (or the IDE initialization)
 190  *      finds a device matching our IDE device tables.
 191  */
 192
 193 static int __devinit generic_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 194 {
 195         ide_pci_device_t *d = &generic_chipsets[id->driver_data];
 196         int ret = -ENODEV;
 197
 198         /* Don't use the generic entry unless instructed to do so */
 199         if (id->driver_data == 0 && ide_generic_all == 0)
 200                         goto out;
 201
 202         switch (dev->vendor) {
 203         case PCI_VENDOR_ID_UMC:
 204                 if (dev->device == PCI_DEVICE_ID_UMC_UM8886A &&
 205                                 !(PCI_FUNC(dev->devfn) & 1))
 206                         goto out; /* UM8886A/BF pair */
 207                 break;
 208         case PCI_VENDOR_ID_OPTI:
 209                 if (dev->device == PCI_DEVICE_ID_OPTI_82C558 &&
 210                                 !(PCI_FUNC(dev->devfn) & 1))
 211                         goto out;
 212                 break;
 213         case PCI_VENDOR_ID_JMICRON:
 214                 if (dev->device != PCI_DEVICE_ID_JMICRON_JMB368 &&
 215                                 PCI_FUNC(dev->devfn) != 1)
 216                         goto out;
 217                 break;
 218         case PCI_VENDOR_ID_NS:
 219                 if (dev->device == PCI_DEVICE_ID_NS_87410 &&
 220                                 (dev->class >> 8) != PCI_CLASS_STORAGE_IDE)
 221                         goto out;
 222                 break;
 223         }
 224
 225         if (dev->vendor != PCI_VENDOR_ID_JMICRON) {
 226                 u16 command;
 227                 pci_read_config_word(dev, PCI_COMMAND, &command);
 228                 if (!(command & PCI_COMMAND_IO)) {
 229                         printk(KERN_INFO "Skipping disabled %s IDE "
 230                                         "controller.\n", d->name);
 231                         goto out;
 232                 }
 233         }
 234         ret = ide_setup_pci_device(dev, d);
 235 out:
 236         return ret;
 237 }
 238
 239 static const struct pci_device_id generic_pci_tbl[] = {
 240         { PCI_VDEVICE(NS,       PCI_DEVICE_ID_NS_87410),                 1 },
 241         { PCI_VDEVICE(PCTECH,   PCI_DEVICE_ID_PCTECH_SAMURAI_IDE),       2 },
 242         { PCI_VDEVICE(HOLTEK,   PCI_DEVICE_ID_HOLTEK_6565),              3 },
 243         { PCI_VDEVICE(UMC,      PCI_DEVICE_ID_UMC_UM8673F),              4 },
 244         { PCI_VDEVICE(UMC,      PCI_DEVICE_ID_UMC_UM8886A),              5 },
 245         { PCI_VDEVICE(UMC,      PCI_DEVICE_ID_UMC_UM8886BF),             6 },
 246         { PCI_VDEVICE(HINT,     PCI_DEVICE_ID_HINT_VXPROII_IDE),         7 },
 247         { PCI_VDEVICE(VIA,      PCI_DEVICE_ID_VIA_82C561),               8 },
 248         { PCI_VDEVICE(OPTI,     PCI_DEVICE_ID_OPTI_82C558),              9 },
 249 #ifdef CONFIG_BLK_DEV_IDE_SATA
 250         { PCI_VDEVICE(VIA,      PCI_DEVICE_ID_VIA_8237_SATA),           10 },
 251 #endif
 252         { PCI_VDEVICE(TOSHIBA,  PCI_DEVICE_ID_TOSHIBA_PICCOLO),         11 },
 253         { PCI_VDEVICE(TOSHIBA,  PCI_DEVICE_ID_TOSHIBA_PICCOLO_1),       12 },
 254         { PCI_VDEVICE(TOSHIBA,  PCI_DEVICE_ID_TOSHIBA_PICCOLO_2),       13 },
 255         { PCI_VDEVICE(NETCELL,  PCI_DEVICE_ID_REVOLUTION),              14 },
 256         /*
 257          * Must come last.  If you add entries adjust
 258          * this table and generic_chipsets[] appropriately.
 259          */
 260         { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL, 0 },
 261         { 0, },
 262 };
 263 MODULE_DEVICE_TABLE(pci, generic_pci_tbl);
 264
 265 static struct pci_driver driver = {
 266         .name           = "PCI_IDE",
 267         .id_table       = generic_pci_tbl,
 268         .probe          = generic_init_one,
 269 };
 270
 271 static int __init generic_ide_init(void)
 272 {
 273         return ide_pci_register_driver(&driver);
 274 }
 275
 276 module_init(generic_ide_init);
 277
 278 MODULE_AUTHOR("Andre Hedrick");
 279 MODULE_DESCRIPTION("PCI driver module for generic PCI IDE");
 280 MODULE_LICENSE("GPL");