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