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 #define DECLARE_GENERIC_PCI_DEV(name_str, dma_setting) \
  79         { \
  80                 .name           = name_str, \
  81                 .init_hwif      = init_hwif_generic, \
  82                 .autodma        = dma_setting, \
  83                 .bootable       = ON_BOARD, \
  84                 .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA, \
  85         }
  86
  87 static ide_pci_device_t generic_chipsets[] __devinitdata = {
  88         /*  0 */ DECLARE_GENERIC_PCI_DEV("Unknown",             AUTODMA),
  89
  90         {       /* 1 */
  91                 .name           = "NS87410",
  92                 .init_hwif      = init_hwif_generic,
  93                 .autodma        = AUTODMA,
  94                 .enablebits     = {{0x43,0x08,0x08}, {0x47,0x08,0x08}},
  95                 .bootable       = ON_BOARD,
  96                 .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
  97         },
  98
  99         /*  2 */ DECLARE_GENERIC_PCI_DEV("SAMURAI",             AUTODMA),
 100         /*  3 */ DECLARE_GENERIC_PCI_DEV("HT6565",              AUTODMA),
 101         /*  4 */ DECLARE_GENERIC_PCI_DEV("UM8673F",             NODMA),
 102         /*  5 */ DECLARE_GENERIC_PCI_DEV("UM8886A",             NODMA),
 103         /*  6 */ DECLARE_GENERIC_PCI_DEV("UM8886BF",            NODMA),
 104         /*  7 */ DECLARE_GENERIC_PCI_DEV("HINT_IDE",            AUTODMA),
 105         /*  8 */ DECLARE_GENERIC_PCI_DEV("VIA_IDE",             NOAUTODMA),
 106         /*  9 */ DECLARE_GENERIC_PCI_DEV("OPTI621V",            NOAUTODMA),
 107
 108         {       /* 10 */
 109                 .name           = "VIA8237SATA",
 110                 .init_hwif      = init_hwif_generic,
 111                 .autodma        = AUTODMA,
 112                 .bootable       = OFF_BOARD,
 113                 .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
 114         },
 115
 116         /* 11 */ DECLARE_GENERIC_PCI_DEV("Piccolo0102",         NOAUTODMA),
 117         /* 12 */ DECLARE_GENERIC_PCI_DEV("Piccolo0103",         NOAUTODMA),
 118         /* 13 */ DECLARE_GENERIC_PCI_DEV("Piccolo0105",         NOAUTODMA),
 119
 120         {       /* 14 */
 121                 .name           = "Revolution",
 122                 .init_hwif      = init_hwif_generic,
 123                 .autodma        = AUTODMA,
 124                 .bootable       = OFF_BOARD,
 125                 .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
 126         }
 127 };
 128
 129 /**
 130  *      generic_init_one        -       called when a PIIX is found
 131  *      @dev: the generic device
 132  *      @id: the matching pci id
 133  *
 134  *      Called when the PCI registration layer (or the IDE initialization)
 135  *      finds a device matching our IDE device tables.
 136  */
 137
 138 static int __devinit generic_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 139 {
 140         ide_pci_device_t *d = &generic_chipsets[id->driver_data];
 141         int ret = -ENODEV;
 142
 143         /* Don't use the generic entry unless instructed to do so */
 144         if (id->driver_data == 0 && ide_generic_all == 0)
 145                         goto out;
 146
 147         switch (dev->vendor) {
 148         case PCI_VENDOR_ID_UMC:
 149                 if (dev->device == PCI_DEVICE_ID_UMC_UM8886A &&
 150                                 !(PCI_FUNC(dev->devfn) & 1))
 151                         goto out; /* UM8886A/BF pair */
 152                 break;
 153         case PCI_VENDOR_ID_OPTI:
 154                 if (dev->device == PCI_DEVICE_ID_OPTI_82C558 &&
 155                                 !(PCI_FUNC(dev->devfn) & 1))
 156                         goto out;
 157                 break;
 158         case PCI_VENDOR_ID_JMICRON:
 159                 if (dev->device != PCI_DEVICE_ID_JMICRON_JMB368 &&
 160                                 PCI_FUNC(dev->devfn) != 1)
 161                         goto out;
 162                 break;
 163         case PCI_VENDOR_ID_NS:
 164                 if (dev->device == PCI_DEVICE_ID_NS_87410 &&
 165                                 (dev->class >> 8) != PCI_CLASS_STORAGE_IDE)
 166                         goto out;
 167                 break;
 168         }
 169
 170         if (dev->vendor != PCI_VENDOR_ID_JMICRON) {
 171                 u16 command;
 172                 pci_read_config_word(dev, PCI_COMMAND, &command);
 173                 if (!(command & PCI_COMMAND_IO)) {
 174                         printk(KERN_INFO "Skipping disabled %s IDE "
 175                                         "controller.\n", d->name);
 176                         goto out;
 177                 }
 178         }
 179         ret = ide_setup_pci_device(dev, d);
 180 out:
 181         return ret;
 182 }
 183
 184 static const struct pci_device_id generic_pci_tbl[] = {
 185         { PCI_VDEVICE(NS,       PCI_DEVICE_ID_NS_87410),                 1 },
 186         { PCI_VDEVICE(PCTECH,   PCI_DEVICE_ID_PCTECH_SAMURAI_IDE),       2 },
 187         { PCI_VDEVICE(HOLTEK,   PCI_DEVICE_ID_HOLTEK_6565),              3 },
 188         { PCI_VDEVICE(UMC,      PCI_DEVICE_ID_UMC_UM8673F),              4 },
 189         { PCI_VDEVICE(UMC,      PCI_DEVICE_ID_UMC_UM8886A),              5 },
 190         { PCI_VDEVICE(UMC,      PCI_DEVICE_ID_UMC_UM8886BF),             6 },
 191         { PCI_VDEVICE(HINT,     PCI_DEVICE_ID_HINT_VXPROII_IDE),         7 },
 192         { PCI_VDEVICE(VIA,      PCI_DEVICE_ID_VIA_82C561),               8 },
 193         { PCI_VDEVICE(OPTI,     PCI_DEVICE_ID_OPTI_82C558),              9 },
 194 #ifdef CONFIG_BLK_DEV_IDE_SATA
 195         { PCI_VDEVICE(VIA,      PCI_DEVICE_ID_VIA_8237_SATA),           10 },
 196 #endif
 197         { PCI_VDEVICE(TOSHIBA,  PCI_DEVICE_ID_TOSHIBA_PICCOLO),         11 },
 198         { PCI_VDEVICE(TOSHIBA,  PCI_DEVICE_ID_TOSHIBA_PICCOLO_1),       12 },
 199         { PCI_VDEVICE(TOSHIBA,  PCI_DEVICE_ID_TOSHIBA_PICCOLO_2),       13 },
 200         { PCI_VDEVICE(NETCELL,  PCI_DEVICE_ID_REVOLUTION),              14 },
 201         /*
 202          * Must come last.  If you add entries adjust
 203          * this table and generic_chipsets[] appropriately.
 204          */
 205         { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL, 0 },
 206         { 0, },
 207 };
 208 MODULE_DEVICE_TABLE(pci, generic_pci_tbl);
 209
 210 static struct pci_driver driver = {
 211         .name           = "PCI_IDE",
 212         .id_table       = generic_pci_tbl,
 213         .probe          = generic_init_one,
 214 };
 215
 216 static int __init generic_ide_init(void)
 217 {
 218         return ide_pci_register_driver(&driver);
 219 }
 220
 221 module_init(generic_ide_init);
 222
 223 MODULE_AUTHOR("Andre Hedrick");
 224 MODULE_DESCRIPTION("PCI driver module for generic PCI IDE");
 225 MODULE_LICENSE("GPL");