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98419ef4b9
2. Used EdkPciIncompatibleDeviceSupportLib in PciBus driver. 3. Redirect all Pci Configuration access to new APIs added in PciLib.c for PciBus driver. 4. Added one PCD PcdIncompatibleDeviceSupportMask in EdkModulePkg.spd to provide mask of PCI devices incompatibility check. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2562 6f19259b-4bc3-4df7-8a09-765794883524
135 lines
4.3 KiB
C
135 lines
4.3 KiB
C
/** @file
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PCI Incompatible device support Libary.
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Copyright (c) 2007 Intel Corporation. All rights reserved. <BR>
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This software and associated documentation (if any) is furnished
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under a license and may only be used or copied in accordance
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with the terms of the license. Except as permitted by such
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license, no part of this software or documentation may be
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reproduced, stored in a retrieval system, or transmitted in any
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form or by any means without the express written consent of
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Intel Corporation.
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**/
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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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