- 根目录:
- drivers
- ide
- ide-pci-generic.c
/*
* Copyright (C) 2001-2002 Andre Hedrick <andre@linux-ide.org>
* Portions (C) Copyright 2002 Red Hat Inc
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* For the avoidance of doubt the "preferred form" of this code is one which
* is in an open non patent encumbered format. Where cryptographic key signing
* forms part of the process of creating an executable the information
* including keys needed to generate an equivalently functional executable
* are deemed to be part of the source code.
*/
#include <linux/types.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/ide.h>
#include <linux/init.h>
#define DRV_NAME "ide_pci_generic"
static bool ide_generic_all; /* Set to claim all devices */
module_param_named(all_generic_ide, ide_generic_all, bool, 0444);
MODULE_PARM_DESC(all_generic_ide, "IDE generic will claim all unknown PCI IDE storage controllers.");
static void netcell_quirkproc(ide_drive_t *drive)
{
/* mark words 85-87 as valid */
drive->id[ATA_ID_CSF_DEFAULT] |= 0x4000;
}
static const struct ide_port_ops netcell_port_ops = {
.quirkproc = netcell_quirkproc,
};
#define DECLARE_GENERIC_PCI_DEV(extra_flags) \
{ \
.name = DRV_NAME, \
.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA | \
extra_flags, \
.swdma_mask = ATA_SWDMA2, \
.mwdma_mask = ATA_MWDMA2, \
.udma_mask = ATA_UDMA6, \
}
static const struct ide_port_info generic_chipsets[] = {
/* 0: Unknown */
DECLARE_GENERIC_PCI_DEV(0),
{ /* 1: NS87410 */
.name = DRV_NAME,
.enablebits = { {0x43, 0x08, 0x08}, {0x47, 0x08, 0x08} },
.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
.swdma_mask = ATA_SWDMA2,
.mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA6,
},
/* 2: SAMURAI / HT6565 / HINT_IDE */
DECLARE_GENERIC_PCI_DEV(0),
/* 3: UM8673F / UM8886A / UM8886BF */
DECLARE_GENERIC_PCI_DEV(IDE_HFLAG_NO_DMA),
/* 4: VIA_IDE / OPTI621V / Piccolo010{2,3,5} */
DECLARE_GENERIC_PCI_DEV(IDE_HFLAG_NO_AUTODMA),
{ /* 5: VIA8237SATA */
.name = DRV_NAME,
.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA |
IDE_HFLAG_OFF_BOARD,
.swdma_mask = ATA_SWDMA2,
.mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA6,
},
{ /* 6: Revolution */
.name = DRV_NAME,
.port_ops = &netcell_port_ops,
.host_flags = IDE_HFLAG_CLEAR_SIMPLEX |
IDE_HFLAG_TRUST_BIOS_FOR_DMA |
IDE_HFLAG_OFF_BOARD,
.swdma_mask = ATA_SWDMA2,
.mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA6,
}
};
/**
* generic_init_one - called when a PIIX is found
* @dev: the generic device
* @id: the matching pci id
*
* Called when the PCI registration layer (or the IDE initialization)
* finds a device matching our IDE device tables.
*/
static int generic_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
const struct ide_port_info *d = &generic_chipsets[id->driver_data];
int ret = -ENODEV;
/* Don't use the generic entry unless instructed to do so */
if (id->driver_data == 0 && ide_generic_all == 0)
goto out;
switch (dev->vendor) {
case PCI_VENDOR_ID_UMC:
if (dev->device == PCI_DEVICE_ID_UMC_UM8886A &&
!(PCI_FUNC(dev->devfn) & 1))
goto out; /* UM8886A/BF pair */
break;
case PCI_VENDOR_ID_OPTI:
if (dev->device == PCI_DEVICE_ID_OPTI_82C558 &&
!(PCI_FUNC(dev->devfn) & 1))
goto out;
break;
case PCI_VENDOR_ID_JMICRON:
if (dev->device != PCI_DEVICE_ID_JMICRON_JMB368 &&
PCI_FUNC(dev->devfn) != 1)
goto out;
break;
case PCI_VENDOR_ID_NS:
if (dev->device == PCI_DEVICE_ID_NS_87410 &&
(dev->class >> 8) != PCI_CLASS_STORAGE_IDE)
goto out;
break;
}
if (dev->vendor != PCI_VENDOR_ID_JMICRON) {
u16 command;
pci_read_config_word(dev, PCI_COMMAND, &command);
if (!(command & PCI_COMMAND_IO)) {
printk(KERN_INFO "%s %s: skipping disabled "
"controller\n", d->name, pci_name(dev));
goto out;
}
}
ret = ide_pci_init_one(dev, d, NULL);
out:
return ret;
}
static const struct pci_device_id generic_pci_tbl[] = {
{ PCI_VDEVICE(NS, PCI_DEVICE_ID_NS_87410), 1 },
{ PCI_VDEVICE(PCTECH, PCI_DEVICE_ID_PCTECH_SAMURAI_IDE), 2 },
{ PCI_VDEVICE(HOLTEK, PCI_DEVICE_ID_HOLTEK_6565), 2 },
{ PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8673F), 3 },
{ PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8886A), 3 },
{ PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8886BF), 3 },
{ PCI_VDEVICE(HINT, PCI_DEVICE_ID_HINT_VXPROII_IDE), 2 },
{ PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C561), 4 },
{ PCI_VDEVICE(OPTI, PCI_DEVICE_ID_OPTI_82C558), 4 },
#ifdef CONFIG_BLK_DEV_IDE_SATA
{ PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8237_SATA), 5 },
#endif
{ PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_1), 4 },
{ PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_2), 4 },
{ PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_3), 4 },
{ PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_5), 4 },
{ PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), 6 },
/*
* Must come last. If you add entries adjust
* this table and generic_chipsets[] appropriately.
*/
{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL, 0 },
{ 0, },
};
MODULE_DEVICE_TABLE(pci, generic_pci_tbl);
static struct pci_driver generic_pci_driver = {
.name = "PCI_IDE",
.id_table = generic_pci_tbl,
.probe = generic_init_one,
.remove = ide_pci_remove,
.suspend = ide_pci_suspend,
.resume = ide_pci_resume,
};
static int __init generic_ide_init(void)
{
return ide_pci_register_driver(&generic_pci_driver);
}
static void __exit generic_ide_exit(void)
{
pci_unregister_driver(&generic_pci_driver);
}
module_init(generic_ide_init);
module_exit(generic_ide_exit);
MODULE_AUTHOR("Andre Hedrick");
MODULE_DESCRIPTION("PCI driver module for generic PCI IDE");
MODULE_LICENSE("GPL");