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/** @file
PCI Incompatible device support Libary. Platform can implement an
instance to support the incompatible PCI devices.
Copyright (c) 2006 - 2009, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef __PCI_INCOMPATIBLE_DEVICE_SUPPORT_LIB_H__
#define __PCI_INCOMPATIBLE_DEVICE_SUPPORT_LIB_H__
#define PCI_REGISTER_READ 0xfffffffffffffff1ULL
#define PCI_REGISTER_WRITE 0xfffffffffffffff2ULL
#define VALUE_NOCARE 0xffffffffffffffffULL
//
// PCI device device information
//
typedef struct {
UINT64 VendorID;
UINT64 DeviceID;
UINT64 RevisionID;
UINT64 SubsystemVendorID;
UINT64 SubsystemID;
} EFI_PCI_DEVICE_INFO;
//
// store hardcode value of resgister
//
typedef struct {
UINT64 AndValue;
UINT64 OrValue;
} EFI_PCI_REGISTER_VALUE_DATA;
//
// store access width information
//
typedef struct {
UINT64 StartOffset;
UINT64 EndOffset;
UINT64 Width;
} EFI_PCI_REGISTER_ACCESS_DATA;
//
// ACPI resource descriptor
//
typedef struct {
UINT64 ResType;
UINT64 GenFlag;
UINT64 SpecificFlag;
UINT64 AddrSpaceGranularity;
UINT64 AddrRangeMin;
UINT64 AddrRangeMax;
UINT64 AddrTranslationOffset;
UINT64 AddrLen;
} EFI_PCI_RESOUCE_DESCRIPTOR;
/**
Check the incompatible device list for ACPI resource update and return
the configuration.
This function searches the incompatible device list according to request
information. If the PCI device belongs to the devices list, corresponding
configuration informtion will be returned, in the meantime return EFI_SUCCESS.
@param PciDeviceInfo A pointer to PCI device information.
@param Configuration Returned information.
@retval EFI_SUCCESS If check incompatible device successfully.
@retval EFI_ABORTED No any resource type.
@retval EFI_OUT_OF_RESOURCES No memory available.
@retval EFI_UNSUPPORTED Invalid Tag encounted.
**/
EFI_STATUS
EFIAPI
PciResourceUpdateCheck (
IN EFI_PCI_DEVICE_INFO *PciDeviceInfo,
OUT VOID *Configuration
);
/**
Check the incompatible device list and return configuraton register mask values.
This function searches the incompatible device list according to request
information. If the PCI device belongs to the devices list, corresponding
configuration informtion will be returned, in the meantime return EFI_SUCCESS.
@param PciDeviceInfo A pointer to EFI_PCI_DEVICE_INFO.
@param AccessType Access Type, READ or WRITE.
@param Offset The address within the PCI configuration space.
@param Configuration Returned information.
@retval EFI_SUCCESS If check incompatible device successfully.
@retval EFI_UNSUPPORTED Failed to check incompatibility device.
**/
EFI_STATUS
EFIAPI
PciRegisterUpdateCheck (
IN EFI_PCI_DEVICE_INFO *PciDeviceInfo,
IN UINT64 AccessType,
IN UINT64 Offset,
OUT VOID *Configuration
);
/**
Check the incompatible device list for access width incompatibility and
return the configuration
This function searches the incompatible device list for access width
incompatibility according to request information. If the PCI device
belongs to the devices list, corresponding configuration informtion
will be returned, in the meantime return EFI_SUCCESS.
@param PciDeviceInfo A pointer to PCI device information.
@param AccessType Access type, READ or WRITE.
@param Offset The address within the PCI configuration space.
@param AccessWidth Access width needs to check incompatibility.
@param Configuration Returned information.
@retval EFI_SUCCESS If check incompatible device successfully.
@retval EFI_UNSUPPORTED Failed to check incompatibility device.
**/
EFI_STATUS
EFIAPI
PciRegisterAccessCheck (
IN EFI_PCI_DEVICE_INFO *PciDeviceInfo,
IN UINT64 AccessType,
IN UINT64 Offset,
IN UINT64 AccessWidth,
OUT VOID *Configuration
);
#endif
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