release/src-rt-6.x/linux/linux-2.6/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         if (!noautodma)
  78                 hwif->autodma = 1;
  79         hwif->drives[0].autodma = hwif->autodma;
  80         hwif->drives[1].autodma = hwif->autodma;
  81 }
  82
  83 #if 0
  84         /* Logic to add back later on */
  85
  86         if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE) {
  87                 ide_pci_device_t *unknown = unknown_chipset;
  88                 init_setup_unknown(dev, unknown);
  89                 return 1;
  90         }
  91         return 0;
  92 #endif
  93
  94 static ide_pci_device_t generic_chipsets[] __devinitdata = {
  95         {       /* 0 */
  96                 .name           = "Unknown",
  97                 .init_hwif      = init_hwif_generic,
  98                 .channels       = 2,
  99                 .autodma        = AUTODMA,
 100                 .bootable       = ON_BOARD,
 101         },{     /* 1 */
 102                 .name           = "NS87410",
 103                 .init_hwif      = init_hwif_generic,
 104                 .channels       = 2,
 105                 .autodma        = AUTODMA,
 106                 .enablebits     = {{0x43,0x08,0x08}, {0x47,0x08,0x08}},
 107                 .bootable       = ON_BOARD,
 108         },{     /* 2 */
 109                 .name           = "SAMURAI",
 110                 .init_hwif      = init_hwif_generic,
 111                 .channels       = 2,
 112                 .autodma        = AUTODMA,
 113                 .bootable       = ON_BOARD,
 114         },{     /* 3 */
 115                 .name           = "HT6565",
 116                 .init_hwif      = init_hwif_generic,
 117                 .channels       = 2,
 118                 .autodma        = AUTODMA,
 119                 .bootable       = ON_BOARD,
 120         },{     /* 4 */
 121                 .name           = "UM8673F",
 122                 .init_hwif      = init_hwif_generic,
 123                 .channels       = 2,
 124                 .autodma        = NODMA,
 125                 .bootable       = ON_BOARD,
 126         },{     /* 5 */
 127                 .name           = "UM8886A",
 128                 .init_hwif      = init_hwif_generic,
 129                 .channels       = 2,
 130                 .autodma        = NODMA,
 131                 .bootable       = ON_BOARD,
 132         },{     /* 6 */
 133                 .name           = "UM8886BF",
 134                 .init_hwif      = init_hwif_generic,
 135                 .channels       = 2,
 136                 .autodma        = NODMA,
 137                 .bootable       = ON_BOARD,
 138         },{     /* 7 */
 139                 .name           = "HINT_IDE",
 140                 .init_hwif      = init_hwif_generic,
 141                 .channels       = 2,
 142                 .autodma        = AUTODMA,
 143                 .bootable       = ON_BOARD,
 144         },{     /* 8 */
 145                 .name           = "VIA_IDE",
 146                 .init_hwif      = init_hwif_generic,
 147                 .channels       = 2,
 148                 .autodma        = NOAUTODMA,
 149                 .bootable       = ON_BOARD,
 150         },{     /* 9 */
 151                 .name           = "OPTI621V",
 152                 .init_hwif      = init_hwif_generic,
 153                 .channels       = 2,
 154                 .autodma        = NOAUTODMA,
 155                 .bootable       = ON_BOARD,
 156         },{     /* 10 */
 157                 .name           = "VIA8237SATA",
 158                 .init_hwif      = init_hwif_generic,
 159                 .channels       = 2,
 160                 .autodma        = AUTODMA,
 161                 .bootable       = OFF_BOARD,
 162         },{     /* 11 */
 163                 .name           = "Piccolo0102",
 164                 .init_hwif      = init_hwif_generic,
 165                 .channels       = 2,
 166                 .autodma        = NOAUTODMA,
 167                 .bootable       = ON_BOARD,
 168         },{     /* 12 */
 169                 .name           = "Piccolo0103",
 170                 .init_hwif      = init_hwif_generic,
 171                 .channels       = 2,
 172                 .autodma        = NOAUTODMA,
 173                 .bootable       = ON_BOARD,
 174         },{     /* 13 */
 175                 .name           = "Piccolo0105",
 176                 .init_hwif      = init_hwif_generic,
 177                 .channels       = 2,
 178                 .autodma        = NOAUTODMA,
 179                 .bootable       = ON_BOARD,
 180         },{     /* 14 */
 181                 .name           = "Revolution",
 182                 .init_hwif      = init_hwif_generic,
 183                 .channels       = 2,
 184                 .autodma        = AUTODMA,
 185                 .bootable       = OFF_BOARD,
 186         }
 187 };
 188
 189 /**
 190  *      generic_init_one        -       called when a PIIX is found
 191  *      @dev: the generic device
 192  *      @id: the matching pci id
 193  *
 194  *      Called when the PCI registration layer (or the IDE initialization)
 195  *      finds a device matching our IDE device tables.
 196  */
 197
 198 static int __devinit generic_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 199 {
 200         ide_pci_device_t *d = &generic_chipsets[id->driver_data];
 201         int ret = -ENODEV;
 202
 203         /* Don't use the generic entry unless instructed to do so */
 204         if (id->driver_data == 0 && ide_generic_all == 0)
 205                         goto out;
 206
 207         switch (dev->vendor) {
 208         case PCI_VENDOR_ID_UMC:
 209                 if (dev->device == PCI_DEVICE_ID_UMC_UM8886A &&
 210                                 !(PCI_FUNC(dev->devfn) & 1))
 211                         goto out; /* UM8886A/BF pair */
 212                 break;
 213         case PCI_VENDOR_ID_OPTI:
 214                 if (dev->device == PCI_DEVICE_ID_OPTI_82C558 &&
 215                                 !(PCI_FUNC(dev->devfn) & 1))
 216                         goto out;
 217                 break;
 218         case PCI_VENDOR_ID_JMICRON:
 219                 if (dev->device != PCI_DEVICE_ID_JMICRON_JMB368 &&
 220                                 PCI_FUNC(dev->devfn) != 1)
 221                         goto out;
 222                 break;
 223         case PCI_VENDOR_ID_NS:
 224                 if (dev->device == PCI_DEVICE_ID_NS_87410 &&
 225                                 (dev->class >> 8) != PCI_CLASS_STORAGE_IDE)
 226                         goto out;
 227                 break;
 228         }
 229
 230         if (dev->vendor != PCI_VENDOR_ID_JMICRON) {
 231                 u16 command;
 232                 pci_read_config_word(dev, PCI_COMMAND, &command);
 233                 if (!(command & PCI_COMMAND_IO)) {
 234                         printk(KERN_INFO "Skipping disabled %s IDE "
 235                                         "controller.\n", d->name);
 236                         goto out;
 237                 }
 238         }
 239         ret = ide_setup_pci_device(dev, d);
 240 out:
 241         return ret;
 242 }
 243
 244 static struct pci_device_id generic_pci_tbl[] = {
 245         { PCI_VENDOR_ID_NS,     PCI_DEVICE_ID_NS_87410,            PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
 246         { PCI_VENDOR_ID_PCTECH, PCI_DEVICE_ID_PCTECH_SAMURAI_IDE,  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
 247         { PCI_VENDOR_ID_HOLTEK, PCI_DEVICE_ID_HOLTEK_6565,         PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
 248         { PCI_VENDOR_ID_UMC,    PCI_DEVICE_ID_UMC_UM8673F,         PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
 249         { PCI_VENDOR_ID_UMC,    PCI_DEVICE_ID_UMC_UM8886A,         PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
 250         { PCI_VENDOR_ID_UMC,    PCI_DEVICE_ID_UMC_UM8886BF,        PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6},
 251         { PCI_VENDOR_ID_HINT,   PCI_DEVICE_ID_HINT_VXPROII_IDE,    PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7},
 252         { PCI_VENDOR_ID_VIA,    PCI_DEVICE_ID_VIA_82C561,          PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8},
 253         { PCI_VENDOR_ID_OPTI,   PCI_DEVICE_ID_OPTI_82C558,         PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9},
 254 #ifdef CONFIG_BLK_DEV_IDE_SATA
 255         { PCI_VENDOR_ID_VIA,    PCI_DEVICE_ID_VIA_8237_SATA,       PCI_ANY_ID, PCI_ANY_ID, 0, 0, 10},
 256 #endif
 257         { PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO,     PCI_ANY_ID, PCI_ANY_ID, 0, 0, 11},
 258         { PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_1,   PCI_ANY_ID, PCI_ANY_ID, 0, 0, 12},
 259         { PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_2,   PCI_ANY_ID, PCI_ANY_ID, 0, 0, 13},
 260         { PCI_VENDOR_ID_NETCELL,PCI_DEVICE_ID_REVOLUTION,          PCI_ANY_ID, PCI_ANY_ID, 0, 0, 14},
 261         /* Must come last. If you add entries adjust this table appropriately and the init_one code */
 262         { PCI_ANY_ID,           PCI_ANY_ID,                        PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL, 0},
 263         { 0, },
 264 };
 265 MODULE_DEVICE_TABLE(pci, generic_pci_tbl);
 266
 267 static struct pci_driver driver = {
 268         .name           = "PCI_IDE",
 269         .id_table       = generic_pci_tbl,
 270         .probe          = generic_init_one,
 271 };
 272
 273 static int __init generic_ide_init(void)
 274 {
 275         return ide_pci_register_driver(&driver);
 276 }
 277
 278 module_init(generic_ide_init);
 279
 280 MODULE_AUTHOR("Andre Hedrick");
 281 MODULE_DESCRIPTION("PCI driver module for generic PCI IDE");
 282 MODULE_LICENSE("GPL");