Import PCD dxe and PCD pei modules.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2994 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
vanjeff
737
MdeModulePkg/Universal/PCD/Dxe/Pcd.c
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737
MdeModulePkg/Universal/PCD/Dxe/Pcd.c
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@@ -0,0 +1,737 @@
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/** @file
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PCD DXE driver
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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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Module Name: Pcd.c
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**/
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//
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// Include common header file for this module.
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//
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#include "CommonHeader.h"
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#include "Service.h"
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EFI_LOCK mPcdDatabaseLock = EFI_INITIALIZE_LOCK_VARIABLE(TPL_CALLBACK);
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PCD_PROTOCOL mPcdInstance = {
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DxePcdSetSku,
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DxePcdGet8,
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DxePcdGet16,
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DxePcdGet32,
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DxePcdGet64,
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DxePcdGetPtr,
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DxePcdGetBool,
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DxePcdGetSize,
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DxePcdGet8Ex,
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DxePcdGet16Ex,
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DxePcdGet32Ex,
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DxePcdGet64Ex,
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DxePcdGetPtrEx,
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DxePcdGetBoolEx,
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DxePcdGetSizeEx,
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DxePcdSet8,
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DxePcdSet16,
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DxePcdSet32,
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DxePcdSet64,
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DxePcdSetPtr,
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DxePcdSetBool,
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DxePcdSet8Ex,
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DxePcdSet16Ex,
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DxePcdSet32Ex,
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DxePcdSet64Ex,
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DxePcdSetPtrEx,
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DxePcdSetBoolEx,
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DxeRegisterCallBackOnSet,
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DxeUnRegisterCallBackOnSet,
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DxePcdGetNextToken,
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DxePcdGetNextTokenSpace
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};
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//
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// Static global to reduce the code size
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//
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static EFI_HANDLE mNewHandle = NULL;
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EFI_STATUS
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EFIAPI
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PcdDxeInit (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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//
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// Make sure the Pcd Protocol is not already installed in the system
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//
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ASSERT_PROTOCOL_ALREADY_INSTALLED (NULL, &gPcdProtocolGuid);
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BuildPcdDxeDataBase ();
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Status = gBS->InstallProtocolInterface (
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&mNewHandle,
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&gPcdProtocolGuid,
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EFI_NATIVE_INTERFACE,
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&mPcdInstance
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);
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ASSERT_EFI_ERROR (Status);
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return EFI_SUCCESS;
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}
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VOID
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EFIAPI
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DxePcdSetSku (
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IN UINTN SkuId
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)
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{
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mPcdDatabase->PeiDb.Init.SystemSkuId = (SKU_ID) SkuId;
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return;
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}
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UINT8
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EFIAPI
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DxePcdGet8 (
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IN UINTN TokenNumber
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)
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{
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return *((UINT8 *) GetWorker (TokenNumber, sizeof (UINT8)));
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}
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UINT16
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EFIAPI
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DxePcdGet16 (
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IN UINTN TokenNumber
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)
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{
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return ReadUnaligned16 (GetWorker (TokenNumber, sizeof (UINT16)));
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}
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UINT32
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EFIAPI
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DxePcdGet32 (
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IN UINTN TokenNumber
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)
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{
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return ReadUnaligned32 (GetWorker (TokenNumber, sizeof (UINT32)));
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}
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UINT64
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EFIAPI
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DxePcdGet64 (
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IN UINTN TokenNumber
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)
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{
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return ReadUnaligned64(GetWorker (TokenNumber, sizeof (UINT64)));
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}
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VOID *
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EFIAPI
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DxePcdGetPtr (
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IN UINTN TokenNumber
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)
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{
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return GetWorker (TokenNumber, 0);
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}
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BOOLEAN
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EFIAPI
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DxePcdGetBool (
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IN UINTN TokenNumber
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)
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{
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return *((BOOLEAN *) GetWorker (TokenNumber, sizeof (BOOLEAN)));
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}
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UINTN
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EFIAPI
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DxePcdGetSize (
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IN UINTN TokenNumber
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)
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{
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UINTN Size;
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UINT32 *LocalTokenNumberTable;
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BOOLEAN IsPeiDb;
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UINTN MaxSize;
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UINTN TmpTokenNumber;
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//
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// TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.
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// We have to decrement TokenNumber by 1 to make it usable
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// as the array index.
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//
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TokenNumber--;
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//
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// Backup the TokenNumber passed in as GetPtrTypeSize need the original TokenNumber
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//
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TmpTokenNumber = TokenNumber;
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// EBC compiler is very choosy. It may report warning about comparison
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// between UINTN and 0 . So we add 1 in each size of the
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// comparison.
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ASSERT (TokenNumber + 1 < PCD_TOTAL_TOKEN_NUMBER + 1);
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// EBC compiler is very choosy. It may report warning about comparison
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// between UINTN and 0 . So we add 1 in each size of the
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// comparison.
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IsPeiDb = (BOOLEAN) (TokenNumber + 1 < PEI_LOCAL_TOKEN_NUMBER + 1);
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TokenNumber = IsPeiDb ? TokenNumber :
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(TokenNumber - PEI_LOCAL_TOKEN_NUMBER);
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LocalTokenNumberTable = IsPeiDb ? mPcdDatabase->PeiDb.Init.LocalTokenNumberTable
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: mPcdDatabase->DxeDb.Init.LocalTokenNumberTable;
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Size = (LocalTokenNumberTable[TokenNumber] & PCD_DATUM_TYPE_ALL_SET) >> PCD_DATUM_TYPE_SHIFT;
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if (Size == 0) {
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//
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// For pointer type, we need to scan the SIZE_TABLE to get the current size.
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//
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return GetPtrTypeSize (TmpTokenNumber, &MaxSize);
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} else {
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return Size;
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}
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}
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UINT8
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EFIAPI
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DxePcdGet8Ex (
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IN CONST EFI_GUID *Guid,
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IN UINTN ExTokenNumber
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)
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{
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return *((UINT8 *) ExGetWorker (Guid, ExTokenNumber, sizeof(UINT8)));
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}
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UINT16
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EFIAPI
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DxePcdGet16Ex (
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IN CONST EFI_GUID *Guid,
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IN UINTN ExTokenNumber
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)
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{
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return ReadUnaligned16 (ExGetWorker (Guid, ExTokenNumber, sizeof(UINT16)));
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}
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UINT32
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EFIAPI
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DxePcdGet32Ex (
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IN CONST EFI_GUID *Guid,
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IN UINTN ExTokenNumber
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)
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{
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return ReadUnaligned32 (ExGetWorker (Guid, ExTokenNumber, sizeof(UINT32)));
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}
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UINT64
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EFIAPI
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DxePcdGet64Ex (
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IN CONST EFI_GUID *Guid,
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IN UINTN ExTokenNumber
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)
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{
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return ReadUnaligned64 (ExGetWorker (Guid, ExTokenNumber, sizeof(UINT64)));
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}
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VOID *
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EFIAPI
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DxePcdGetPtrEx (
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IN CONST EFI_GUID *Guid,
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IN UINTN ExTokenNumber
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)
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{
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return ExGetWorker (Guid, ExTokenNumber, 0);
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}
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BOOLEAN
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EFIAPI
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DxePcdGetBoolEx (
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IN CONST EFI_GUID *Guid,
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IN UINTN ExTokenNumber
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)
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{
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return *((BOOLEAN *) ExGetWorker (Guid, ExTokenNumber, sizeof(BOOLEAN)));
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}
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UINTN
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EFIAPI
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DxePcdGetSizeEx (
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IN CONST EFI_GUID *Guid,
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IN UINTN ExTokenNumber
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)
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{
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return DxePcdGetSize(GetExPcdTokenNumber (Guid, (UINT32) ExTokenNumber));
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}
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EFI_STATUS
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EFIAPI
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DxePcdSet8 (
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IN UINTN TokenNumber,
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IN UINT8 Value
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)
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{
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return SetValueWorker (TokenNumber, &Value, sizeof (Value));
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}
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EFI_STATUS
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EFIAPI
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DxePcdSet16 (
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IN UINTN TokenNumber,
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IN UINT16 Value
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)
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{
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return SetValueWorker (TokenNumber, &Value, sizeof (Value));
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}
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EFI_STATUS
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EFIAPI
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DxePcdSet32 (
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IN UINTN TokenNumber,
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IN UINT32 Value
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)
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{
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return SetValueWorker (TokenNumber, &Value, sizeof (Value));
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}
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EFI_STATUS
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EFIAPI
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DxePcdSet64 (
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IN UINTN TokenNumber,
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IN UINT64 Value
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)
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{
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return SetValueWorker (TokenNumber, &Value, sizeof (Value));
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}
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EFI_STATUS
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EFIAPI
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DxePcdSetPtr (
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IN UINTN TokenNumber,
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IN OUT UINTN *SizeOfBuffer,
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IN VOID *Buffer
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)
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{
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return SetWorker (TokenNumber, Buffer, SizeOfBuffer, TRUE);
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}
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EFI_STATUS
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EFIAPI
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DxePcdSetBool (
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IN UINTN TokenNumber,
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IN BOOLEAN Value
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)
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{
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return SetValueWorker (TokenNumber, &Value, sizeof (Value));
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}
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EFI_STATUS
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EFIAPI
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DxePcdSet8Ex (
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IN CONST EFI_GUID *Guid,
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IN UINTN ExTokenNumber,
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IN UINT8 Value
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)
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{
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return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));
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}
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EFI_STATUS
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EFIAPI
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DxePcdSet16Ex (
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IN CONST EFI_GUID *Guid,
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IN UINTN ExTokenNumber,
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IN UINT16 Value
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)
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{
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return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));
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}
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EFI_STATUS
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EFIAPI
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DxePcdSet32Ex (
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IN CONST EFI_GUID *Guid,
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IN UINTN ExTokenNumber,
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IN UINT32 Value
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)
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{
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return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));
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}
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EFI_STATUS
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EFIAPI
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DxePcdSet64Ex (
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IN CONST EFI_GUID *Guid,
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IN UINTN ExTokenNumber,
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IN UINT64 Value
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)
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{
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return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));
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}
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EFI_STATUS
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EFIAPI
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DxePcdSetPtrEx (
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IN CONST EFI_GUID *Guid,
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IN UINTN ExTokenNumber,
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IN OUT UINTN *SizeOfBuffer,
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IN VOID *Buffer
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)
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{
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return ExSetWorker(ExTokenNumber, Guid, Buffer, SizeOfBuffer, TRUE);
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}
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EFI_STATUS
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EFIAPI
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DxePcdSetBoolEx (
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IN CONST EFI_GUID *Guid,
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IN UINTN ExTokenNumber,
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IN BOOLEAN Value
|
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)
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{
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return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));
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}
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||||
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||||
|
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EFI_STATUS
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||||
EFIAPI
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DxeRegisterCallBackOnSet (
|
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IN CONST EFI_GUID *Guid, OPTIONAL
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||||
IN UINTN TokenNumber,
|
||||
IN PCD_PROTOCOL_CALLBACK CallBackFunction
|
||||
)
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||||
{
|
||||
EFI_STATUS Status;
|
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|
||||
ASSERT (CallBackFunction != NULL);
|
||||
|
||||
//
|
||||
// Aquire lock to prevent reentrance from TPL_CALLBACK level
|
||||
//
|
||||
EfiAcquireLock (&mPcdDatabaseLock);
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||||
Status = DxeRegisterCallBackWorker (TokenNumber, Guid, CallBackFunction);
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||||
EfiReleaseLock (&mPcdDatabaseLock);
|
||||
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||||
return Status;
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||||
}
|
||||
|
||||
|
||||
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
DxeUnRegisterCallBackOnSet (
|
||||
IN CONST EFI_GUID *Guid, OPTIONAL
|
||||
IN UINTN TokenNumber,
|
||||
IN PCD_PROTOCOL_CALLBACK CallBackFunction
|
||||
)
|
||||
{
|
||||
EFI_STATUS Status;
|
||||
|
||||
ASSERT (CallBackFunction != NULL);
|
||||
|
||||
//
|
||||
// Aquire lock to prevent reentrance from TPL_CALLBACK level
|
||||
//
|
||||
EfiAcquireLock (&mPcdDatabaseLock);
|
||||
|
||||
Status = DxeUnRegisterCallBackWorker (TokenNumber, Guid, CallBackFunction);
|
||||
|
||||
EfiReleaseLock (&mPcdDatabaseLock);
|
||||
|
||||
return Status;
|
||||
}
|
||||
|
||||
|
||||
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
DxePcdGetNextToken (
|
||||
IN CONST EFI_GUID *Guid, OPTIONAL
|
||||
IN OUT UINTN *TokenNumber
|
||||
)
|
||||
{
|
||||
EFI_STATUS Status;
|
||||
BOOLEAN PeiExMapTableEmpty;
|
||||
BOOLEAN DxeExMapTableEmpty;
|
||||
|
||||
if (!FeaturePcdGet (PcdDxePcdDatabaseTraverseEnabled)) {
|
||||
return EFI_UNSUPPORTED;
|
||||
}
|
||||
|
||||
Status = EFI_NOT_FOUND;
|
||||
PeiExMapTableEmpty = PEI_EXMAP_TABLE_EMPTY;
|
||||
DxeExMapTableEmpty = DXE_EXMAP_TABLE_EMPTY;
|
||||
|
||||
//
|
||||
// Scan the local token space
|
||||
//
|
||||
if (Guid == NULL) {
|
||||
// EBC compiler is very choosy. It may report warning about comparison
|
||||
// between UINTN and 0 . So we add 1 in each size of the
|
||||
// comparison.
|
||||
if (((*TokenNumber + 1 > PEI_NEX_TOKEN_NUMBER + 1) && (*TokenNumber + 1 < PEI_LOCAL_TOKEN_NUMBER + 1)) ||
|
||||
((*TokenNumber + 1 > (PEI_LOCAL_TOKEN_NUMBER + DXE_NEX_TOKEN_NUMBER + 1)))) {
|
||||
return EFI_NOT_FOUND;
|
||||
}
|
||||
|
||||
(*TokenNumber)++;
|
||||
if ((*TokenNumber + 1 > PEI_NEX_TOKEN_NUMBER + 1) &&
|
||||
(*TokenNumber <= PEI_LOCAL_TOKEN_NUMBER)) {
|
||||
//
|
||||
// The first Non-Ex type Token Number for DXE PCD
|
||||
// database is PEI_LOCAL_TOKEN_NUMBER
|
||||
//
|
||||
*TokenNumber = PEI_LOCAL_TOKEN_NUMBER;
|
||||
} else if (*TokenNumber + 1 > DXE_NEX_TOKEN_NUMBER + PEI_LOCAL_TOKEN_NUMBER + 1) {
|
||||
*TokenNumber = PCD_INVALID_TOKEN_NUMBER;
|
||||
}
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
|
||||
if (PeiExMapTableEmpty && DxeExMapTableEmpty) {
|
||||
*TokenNumber = PCD_INVALID_TOKEN_NUMBER;
|
||||
return EFI_NOT_FOUND;
|
||||
}
|
||||
|
||||
if (!PeiExMapTableEmpty) {
|
||||
Status = ExGetNextTokeNumber (
|
||||
Guid,
|
||||
TokenNumber,
|
||||
mPcdDatabase->PeiDb.Init.GuidTable,
|
||||
sizeof(mPcdDatabase->PeiDb.Init.GuidTable),
|
||||
mPcdDatabase->PeiDb.Init.ExMapTable,
|
||||
sizeof(mPcdDatabase->PeiDb.Init.ExMapTable)
|
||||
);
|
||||
}
|
||||
|
||||
if (Status == EFI_SUCCESS) {
|
||||
return Status;
|
||||
}
|
||||
|
||||
if (!DxeExMapTableEmpty) {
|
||||
Status = ExGetNextTokeNumber (
|
||||
Guid,
|
||||
TokenNumber,
|
||||
mPcdDatabase->DxeDb.Init.GuidTable,
|
||||
sizeof(mPcdDatabase->DxeDb.Init.GuidTable),
|
||||
mPcdDatabase->DxeDb.Init.ExMapTable,
|
||||
sizeof(mPcdDatabase->DxeDb.Init.ExMapTable)
|
||||
);
|
||||
}
|
||||
|
||||
return Status;
|
||||
}
|
||||
|
||||
STATIC
|
||||
EFI_GUID **
|
||||
GetDistinctTokenSpace (
|
||||
IN OUT UINTN *ExMapTableSize,
|
||||
IN DYNAMICEX_MAPPING *ExMapTable,
|
||||
IN EFI_GUID *GuidTable
|
||||
)
|
||||
{
|
||||
EFI_GUID **DistinctTokenSpace;
|
||||
UINTN OldGuidIndex;
|
||||
UINTN TsIdx;
|
||||
UINTN Idx;
|
||||
|
||||
|
||||
DistinctTokenSpace = AllocateZeroPool (*ExMapTableSize * sizeof (EFI_GUID *));
|
||||
ASSERT (DistinctTokenSpace != NULL);
|
||||
|
||||
TsIdx = 0;
|
||||
OldGuidIndex = ExMapTable[0].ExGuidIndex;
|
||||
DistinctTokenSpace[TsIdx] = &GuidTable[OldGuidIndex];
|
||||
for (Idx = 1; Idx < *ExMapTableSize; Idx++) {
|
||||
if (ExMapTable[Idx].ExGuidIndex != OldGuidIndex) {
|
||||
OldGuidIndex = ExMapTable[Idx].ExGuidIndex;
|
||||
DistinctTokenSpace[++TsIdx] = &GuidTable[OldGuidIndex];
|
||||
}
|
||||
}
|
||||
|
||||
//
|
||||
// The total number of Distinct Token Space
|
||||
// is TsIdx + 1 because we use TsIdx as a index
|
||||
// to the DistinctTokenSpace[]
|
||||
//
|
||||
*ExMapTableSize = TsIdx + 1;
|
||||
return DistinctTokenSpace;
|
||||
|
||||
}
|
||||
|
||||
//
|
||||
// Just pre-allocate a memory buffer that is big enough to
|
||||
// host all distinct TokenSpace guid in both
|
||||
// PEI ExMap and DXE ExMap.
|
||||
//
|
||||
STATIC EFI_GUID *TmpTokenSpaceBuffer[PEI_EXMAPPING_TABLE_SIZE + DXE_EXMAPPING_TABLE_SIZE] = { 0 };
|
||||
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
DxePcdGetNextTokenSpace (
|
||||
IN OUT CONST EFI_GUID **Guid
|
||||
)
|
||||
{
|
||||
UINTN Idx;
|
||||
UINTN Idx2;
|
||||
UINTN Idx3;
|
||||
UINTN PeiTokenSpaceTableSize;
|
||||
UINTN DxeTokenSpaceTableSize;
|
||||
EFI_GUID **PeiTokenSpaceTable;
|
||||
EFI_GUID **DxeTokenSpaceTable;
|
||||
BOOLEAN Match;
|
||||
BOOLEAN PeiExMapTableEmpty;
|
||||
BOOLEAN DxeExMapTableEmpty;
|
||||
|
||||
if (!FeaturePcdGet (PcdDxePcdDatabaseTraverseEnabled)) {
|
||||
return EFI_UNSUPPORTED;
|
||||
}
|
||||
|
||||
ASSERT (Guid != NULL);
|
||||
|
||||
PeiExMapTableEmpty = PEI_EXMAP_TABLE_EMPTY;
|
||||
DxeExMapTableEmpty = DXE_EXMAP_TABLE_EMPTY;
|
||||
|
||||
if (PeiExMapTableEmpty && DxeExMapTableEmpty) {
|
||||
if (*Guid != NULL) {
|
||||
return EFI_NOT_FOUND;
|
||||
} else {
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
if (TmpTokenSpaceBuffer[0] == NULL) {
|
||||
PeiTokenSpaceTableSize = 0;
|
||||
|
||||
if (!PeiExMapTableEmpty) {
|
||||
PeiTokenSpaceTableSize = PEI_EXMAPPING_TABLE_SIZE;
|
||||
PeiTokenSpaceTable = GetDistinctTokenSpace (&PeiTokenSpaceTableSize,
|
||||
mPcdDatabase->PeiDb.Init.ExMapTable,
|
||||
mPcdDatabase->PeiDb.Init.GuidTable
|
||||
);
|
||||
CopyMem (TmpTokenSpaceBuffer, PeiTokenSpaceTable, sizeof (EFI_GUID*) * PeiTokenSpaceTableSize);
|
||||
}
|
||||
|
||||
if (!DxeExMapTableEmpty) {
|
||||
DxeTokenSpaceTableSize = DXE_EXMAPPING_TABLE_SIZE;
|
||||
DxeTokenSpaceTable = GetDistinctTokenSpace (&DxeTokenSpaceTableSize,
|
||||
mPcdDatabase->DxeDb.Init.ExMapTable,
|
||||
mPcdDatabase->DxeDb.Init.GuidTable
|
||||
);
|
||||
|
||||
//
|
||||
// Make sure EFI_GUID in DxeTokenSpaceTable does not exist in PeiTokenSpaceTable
|
||||
//
|
||||
for (Idx2 = 0, Idx3 = PeiTokenSpaceTableSize; Idx2 < DxeTokenSpaceTableSize; Idx2++) {
|
||||
Match = FALSE;
|
||||
for (Idx = 0; Idx < PeiTokenSpaceTableSize; Idx++) {
|
||||
if (CompareGuid (TmpTokenSpaceBuffer[Idx], DxeTokenSpaceTable[Idx2])) {
|
||||
Match = TRUE;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (!Match) {
|
||||
TmpTokenSpaceBuffer[Idx3++] = DxeTokenSpaceTable[Idx2];
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (*Guid == NULL) {
|
||||
*Guid = TmpTokenSpaceBuffer[0];
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
|
||||
for (Idx = 0; Idx < (PEI_EXMAPPING_TABLE_SIZE + DXE_EXMAPPING_TABLE_SIZE); Idx++) {
|
||||
if(CompareGuid (*Guid, TmpTokenSpaceBuffer[Idx])) {
|
||||
Idx++;
|
||||
*Guid = TmpTokenSpaceBuffer[Idx];
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
}
|
||||
|
||||
return EFI_NOT_FOUND;
|
||||
|
||||
}
|
||||
|
||||
|
||||
Reference in New Issue
Block a user