8d0a8e53a0
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5297 6f19259b-4bc3-4df7-8a09-765794883524
141 lines
4.7 KiB
C
141 lines
4.7 KiB
C
/** @file
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PCI Incompatible device support Libary.
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Copyright (c) 2006 - 2007, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef __PCI_INCOMPATIBLE_DEVICE_SUPPORT_LIB_H__
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#define __PCI_INCOMPATIBLE_DEVICE_SUPPORT_LIB_H__
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#define PCI_REGISTER_READ 0xfffffffffffffff1ULL
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#define PCI_REGISTER_WRITE 0xfffffffffffffff2ULL
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#define VALUE_NOCARE 0xffffffffffffffffULL
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//
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// PCI device device information
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//
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typedef struct {
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UINT64 VendorID;
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UINT64 DeviceID;
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UINT64 RevisionID;
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UINT64 SubsystemVendorID;
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UINT64 SubsystemID;
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} EFI_PCI_DEVICE_INFO;
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//
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// store hardcode value of resgister
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//
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typedef struct {
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UINT64 AndValue;
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UINT64 OrValue;
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} EFI_PCI_REGISTER_VALUE_DATA;
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//
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// store access width information
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//
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typedef struct {
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UINT64 StartOffset;
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UINT64 EndOffset;
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UINT64 Width;
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} EFI_PCI_REGISTER_ACCESS_DATA;
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//
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// ACPI resource descriptor
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//
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typedef struct {
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UINT64 ResType;
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UINT64 GenFlag;
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UINT64 SpecificFlag;
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UINT64 AddrSpaceGranularity;
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UINT64 AddrRangeMin;
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UINT64 AddrRangeMax;
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UINT64 AddrTranslationOffset;
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UINT64 AddrLen;
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} EFI_PCI_RESOUCE_DESCRIPTOR;
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/**
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Checks the incompatible device list for ACPI resource update and return
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the configuration.
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This function searches the incompatible device list according to request
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information. If the PCI device belongs to the devices list, corresponding
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configuration informtion will be returned, in the meantime return EFI_SUCCESS.
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@param PciDeviceInfo A pointer to PCI device information.
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@param Configuration Returned information.
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@retval returns EFI_SUCCESS if check incompatible device ok.
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Otherwise return EFI_UNSUPPORTED.
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**/
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RETURN_STATUS
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EFIAPI
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PciResourceUpdateCheck (
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IN EFI_PCI_DEVICE_INFO *PciDeviceInfo,
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OUT VOID *Configuration
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);
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/**
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Checks the incompatible device list and return configuration register mask values.
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This function searches the incompatible device list according to request
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information. If the PCI device belongs to the devices list, corresponding
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configuration informtion will be returned, in the meantime return EFI_SUCCESS.
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@param PciDeviceInfo A pointer to EFI_PCI_DEVICE_INFO.
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@param AccessType Access Type, READ or WRITE.
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@param Offset The address within the PCI configuration space.
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@param Configuration Returned information.
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@retval returns EFI_SUCCESS if check incompatible device ok.
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Otherwise return EFI_UNSUPPORTED.
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**/
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RETURN_STATUS
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EFIAPI
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PciRegisterUpdateCheck (
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IN EFI_PCI_DEVICE_INFO *PciDeviceInfo,
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IN UINT64 AccessType,
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IN UINT64 Offset,
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OUT VOID *Configuration
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);
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/**
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Checks the incompatible device list for access width incompatibility and
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return the configuration
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This function searches the incompatible device list for access width
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incompatibility according to request information. If the PCI device
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belongs to the devices list, corresponding configuration informtion
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will be returned, in the meantime return EFI_SUCCESS.
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@param PciDeviceInfo A pointer to PCI device information.
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@param AccessType Access type, READ or WRITE.
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@param Offset The address within the PCI configuration space.
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@param AccessWidth Access width needs to check incompatibility.
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@param Configuration Returned information.
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@retval returns EFI_SUCCESS if check incompatible device ok.
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Otherwise return EFI_UNSUPPORTED.
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**/
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RETURN_STATUS
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EFIAPI
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PciRegisterAccessCheck (
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IN EFI_PCI_DEVICE_INFO *PciDeviceInfo,
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IN UINT64 AccessType,
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IN UINT64 Offset,
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IN UINT64 AccessWidth,
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OUT VOID *Configuration
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);
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#endif
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