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