mirror of https://github.com/acidanthera/audk.git
704 lines
18 KiB
C
704 lines
18 KiB
C
/** @file
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Private functions used by PCD DXE driver.s
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Copyright (c) 2006, 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: Service.c
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**/
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#include "Service.h"
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//
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// Build Tool will generate DXE_PCD_DB_INIT_VALUE in Autogen.h
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// Compression Algorithm will take care of the size optimization.
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//
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PCD_DATABASE * mPcdDatabase;
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LIST_ENTRY mCallbackFnTable[PCD_TOTAL_TOKEN_NUMBER];
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VOID *
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GetWorker (
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PCD_TOKEN_NUMBER TokenNumber,
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UINTN GetSize
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)
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{
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UINT32 *LocalTokenNumberTable;
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UINT16 *SizeTable;
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BOOLEAN IsPeiDb;
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UINTN Size;
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UINT32 Offset;
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EFI_GUID *GuidTable;
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UINT16 *StringTable;
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EFI_GUID *Guid;
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UINT16 *Name;
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VARIABLE_HEAD *VariableHead;
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EFI_STATUS Status;
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UINTN DataSize;
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VOID *Data;
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VPD_HEAD *VpdHead;
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UINT8 *PcdDb;
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UINT16 StringTableIdx;
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UINT32 LocalTokenNumber;
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ASSERT (TokenNumber < PCD_TOTAL_TOKEN_NUMBER);
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Size = DxePcdGetSize (TokenNumber);
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ASSERT (GetSize == Size || GetSize == 0);
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IsPeiDb = (TokenNumber <= PEI_LOCAL_TOKEN_NUMBER) ? TRUE : FALSE;
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LocalTokenNumberTable = IsPeiDb ? mPcdDatabase->PeiDb.Init.LocalTokenNumberTable :
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mPcdDatabase->DxeDb.Init.LocalTokenNumberTable;
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SizeTable = IsPeiDb ? mPcdDatabase->PeiDb.Init.SizeTable:
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mPcdDatabase->DxeDb.Init.SizeTable;
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TokenNumber = IsPeiDb ? TokenNumber :
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TokenNumber - PEI_LOCAL_TOKEN_NUMBER;
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LocalTokenNumber = LocalTokenNumberTable[TokenNumber];
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if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == PCD_TYPE_SKU_ENABLED) {
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LocalTokenNumber = GetSkuEnabledTokenNumber (LocalTokenNumber & ~PCD_TYPE_SKU_ENABLED, Size, IsPeiDb);
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}
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PcdDb = IsPeiDb ? ((UINT8 *) &mPcdDatabase->PeiDb) : ((UINT8 *) &mPcdDatabase->DxeDb);
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StringTable = IsPeiDb ? mPcdDatabase->PeiDb.Init.StringTable :
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mPcdDatabase->DxeDb.Init.StringTable;
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Offset = LocalTokenNumber & PCD_DATABASE_OFFSET_MASK;
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switch (LocalTokenNumber & ~PCD_DATABASE_OFFSET_MASK) {
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case PCD_TYPE_VPD:
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VpdHead = (VPD_HEAD *) ((UINT8 *) PcdDb + Offset);
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return (VOID *) (FixedPcdGet32(PcdVpdBaseAddress) + VpdHead->Offset);
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case PCD_TYPE_HII:
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GuidTable = IsPeiDb ? mPcdDatabase->PeiDb.Init.GuidTable :
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mPcdDatabase->DxeDb.Init.GuidTable;
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VariableHead = (VARIABLE_HEAD *) (PcdDb + Offset);
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Guid = &(GuidTable[VariableHead->GuidTableIndex]);
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Name = &(StringTable[VariableHead->StringIndex]);
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Status = GetHiiVariable (Guid, Name, &Data, &DataSize);
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ASSERT_EFI_ERROR (Status);
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ASSERT (DataSize >= (UINTN) (VariableHead->Offset + Size));
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return (UINT8 *) Data + VariableHead->Offset;
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case PCD_TYPE_STRING:
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StringTableIdx = (UINT16) *((UINT8 *) PcdDb + Offset);
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return (VOID *) &StringTable[StringTableIdx];
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case PCD_TYPE_DATA:
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return (VOID *) ((UINT8 *) PcdDb + Offset);
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break;
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default:
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ASSERT (FALSE);
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break;
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}
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ASSERT (FALSE);
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return NULL;
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}
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EFI_STATUS
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DxeRegisterCallBackWorker (
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IN PCD_TOKEN_NUMBER TokenNumber,
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IN CONST GUID *Guid, OPTIONAL
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IN PCD_PROTOCOL_CALLBACK CallBackFunction
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)
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{
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CALLBACK_FN_ENTRY *FnTableEntry;
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LIST_ENTRY *ListHead;
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LIST_ENTRY *ListNode;
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if (Guid != NULL) {
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TokenNumber = GetExPcdTokenNumber (Guid, TokenNumber);
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}
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ListHead = &mCallbackFnTable[TokenNumber];
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ListNode = GetFirstNode (ListHead);
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while (ListNode != ListHead) {
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FnTableEntry = CR_FNENTRY_FROM_LISTNODE(ListNode, CALLBACK_FN_ENTRY, Node);
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if (FnTableEntry->CallbackFn == CallBackFunction) {
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//
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// We only allow a Callback function to be register once
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// for a TokenNumber. So just return EFI_SUCCESS
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//
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return EFI_SUCCESS;
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}
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ListNode = GetNextNode (ListHead, ListNode);
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}
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FnTableEntry = AllocatePool (sizeof(CALLBACK_FN_ENTRY));
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ASSERT (FnTableEntry != NULL);
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FnTableEntry->CallbackFn = CallBackFunction;
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InsertTailList (ListHead, &FnTableEntry->Node);
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return EFI_SUCCESS;
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}
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EFI_STATUS
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DxeUnRegisterCallBackWorker (
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IN PCD_TOKEN_NUMBER TokenNumber,
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IN CONST GUID *Guid, OPTIONAL
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IN PCD_PROTOCOL_CALLBACK CallBackFunction
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)
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{
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CALLBACK_FN_ENTRY *FnTableEntry;
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LIST_ENTRY *ListHead;
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LIST_ENTRY *ListNode;
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if (Guid != NULL) {
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TokenNumber = GetExPcdTokenNumber (Guid, TokenNumber);
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}
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ListHead = &mCallbackFnTable[TokenNumber];
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ListNode = GetFirstNode (ListHead);
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while (ListNode != ListHead) {
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FnTableEntry = CR_FNENTRY_FROM_LISTNODE(ListNode, CALLBACK_FN_ENTRY, Node);
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if (FnTableEntry->CallbackFn == CallBackFunction) {
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//
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// We only allow a Callback function to be register once
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// for a TokenNumber. So we can safely remove the Node from
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// the Link List and return EFI_SUCCESS.
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//
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RemoveEntryList (ListNode);
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FreePool (FnTableEntry);
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return EFI_SUCCESS;
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}
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ListNode = GetNextNode (ListHead, ListNode);
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}
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return EFI_INVALID_PARAMETER;
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}
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PCD_TOKEN_NUMBER
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ExGetNextTokeNumber (
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IN CONST EFI_GUID *Guid,
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IN PCD_TOKEN_NUMBER TokenNumber,
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IN EFI_GUID *GuidTable,
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IN UINTN SizeOfGuidTable,
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IN DYNAMICEX_MAPPING *ExMapTable,
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IN UINTN SizeOfExMapTable
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)
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{
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EFI_GUID *MatchGuid;
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UINTN Idx;
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UINTN GuidTableIdx;
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BOOLEAN Found;
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MatchGuid = ScanGuid (GuidTable, SizeOfGuidTable, Guid);
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if (MatchGuid == NULL) {
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return PCD_INVALID_TOKEN_NUMBER;
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}
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Found = FALSE;
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GuidTableIdx = MatchGuid - GuidTable;
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for (Idx = 0; Idx < SizeOfExMapTable; Idx++) {
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if (ExMapTable[Idx].ExGuidIndex == GuidTableIdx) {
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Found = TRUE;
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break;
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}
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}
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if (Found) {
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if (TokenNumber == PCD_INVALID_TOKEN_NUMBER) {
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return ExMapTable[Idx].ExTokenNumber;
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}
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for ( ; Idx < SizeOfExMapTable; Idx++) {
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if (ExMapTable[Idx].ExTokenNumber == TokenNumber) {
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Idx++;
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if (Idx == SizeOfExMapTable) {
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//
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// Exceed the length of ExMap Table
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//
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return PCD_INVALID_TOKEN_NUMBER;
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} else if (ExMapTable[Idx].ExGuidIndex == GuidTableIdx) {
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//
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// Found the next match
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//
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return ExMapTable[Idx].ExTokenNumber;
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} else {
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//
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// Guid has been changed. It is the next Token Space Guid.
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// We should flag no more TokenNumber.
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//
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return PCD_INVALID_TOKEN_NUMBER;
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}
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}
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}
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}
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return PCD_INVALID_TOKEN_NUMBER;
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}
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VOID
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BuildPcdDxeDataBase (
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VOID
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)
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{
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PEI_PCD_DATABASE *PeiDatabase;
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EFI_HOB_GUID_TYPE *GuidHob;
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UINTN Idx;
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mPcdDatabase = AllocateZeroPool (sizeof(PCD_DATABASE));
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ASSERT (mPcdDatabase != NULL);
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GuidHob = GetFirstGuidHob (&gPcdDataBaseHobGuid);
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ASSERT (GuidHob != NULL);
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PeiDatabase = (PEI_PCD_DATABASE *) GET_GUID_HOB_DATA (GuidHob);
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//
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// Copy PCD Entries refereneced in PEI phase to PCD DATABASE
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//
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CopyMem (&mPcdDatabase->PeiDb, PeiDatabase, sizeof (PEI_PCD_DATABASE));
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//
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// Copy PCD Entries with default value to PCD DATABASE
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//
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CopyMem (&mPcdDatabase->DxeDb.Init, &gDXEPcdDbInit, sizeof(DXE_PCD_DATABASE_INIT));
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//
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// Initialized the Callback Function Table
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//
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for (Idx = 0; Idx < PCD_TOTAL_TOKEN_NUMBER; Idx++) {
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InitializeListHead (&mCallbackFnTable[Idx]);
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}
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return;
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}
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EFI_STATUS
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GetHiiVariable (
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IN EFI_GUID *VariableGuid,
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IN UINT16 *VariableName,
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OUT VOID ** VariableData,
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OUT UINTN *VariableSize
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)
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{
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UINTN Size;
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EFI_STATUS Status;
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VOID *Buffer;
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Status = EfiGetVariable (
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(UINT16 *)VariableName,
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VariableGuid,
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NULL,
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&Size,
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NULL
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);
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ASSERT (Status == EFI_BUFFER_TOO_SMALL);
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Buffer = AllocatePool (Size);
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ASSERT (Buffer != NULL);
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Status = EfiGetVariable (
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VariableName,
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VariableGuid,
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NULL,
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&Size,
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Buffer
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);
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return Status;
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}
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UINT32
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GetSkuEnabledTokenNumber (
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UINT32 LocalTokenNumber,
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UINTN Size,
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BOOLEAN IsPeiDb
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)
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{
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SKU_HEAD *SkuHead;
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SKU_ID *SkuIdTable;
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INTN i;
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UINT8 *Value;
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SKU_ID *PhaseSkuIdTable;
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UINT8 *PcdDb;
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ASSERT ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0);
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PcdDb = IsPeiDb ? (UINT8 *) &mPcdDatabase->PeiDb : (UINT8 *) &mPcdDatabase->DxeDb;
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SkuHead = (SKU_HEAD *) (PcdDb + (LocalTokenNumber & PCD_DATABASE_OFFSET_MASK));
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Value = (UINT8 *) (PcdDb + SkuHead->SkuDataStartOffset);
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PhaseSkuIdTable = IsPeiDb ? mPcdDatabase->PeiDb.Init.SkuIdTable :
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mPcdDatabase->DxeDb.Init.SkuIdTable;
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SkuIdTable = &PhaseSkuIdTable[SkuHead->SkuIdTableOffset];
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for (i = 0; i < SkuIdTable[0]; i++) {
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if (mPcdDatabase->PeiDb.Init.SystemSkuId == SkuIdTable[i + 1]) {
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break;
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}
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}
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ASSERT (i < SkuIdTable[0]);
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switch (LocalTokenNumber & ~PCD_DATABASE_OFFSET_MASK) {
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case PCD_TYPE_VPD:
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Value = (UINT8 *) &(((VPD_HEAD *) Value)[i]);
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return ((Value - PcdDb) | PCD_TYPE_VPD);
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case PCD_TYPE_HII:
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Value = (UINT8 *) &(((VARIABLE_HEAD *) Value)[i]);
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return ((Value - PcdDb) | PCD_TYPE_HII);
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case PCD_TYPE_DATA:
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Value += Size * i;
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return (Value - PcdDb);
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default:
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ASSERT (FALSE);
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}
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ASSERT (FALSE);
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return 0;
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}
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VOID
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InvokeCallbackOnSet (
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UINT32 ExTokenNumber,
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CONST EFI_GUID *Guid, OPTIONAL
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UINTN TokenNumber,
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VOID *Data,
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UINTN Size
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)
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{
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CALLBACK_FN_ENTRY *FnTableEntry;
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LIST_ENTRY *ListHead;
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LIST_ENTRY *ListNode;
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ListHead = &mCallbackFnTable[TokenNumber];
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ListNode = GetFirstNode (ListHead);
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while (ListNode != ListHead) {
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FnTableEntry = CR_FNENTRY_FROM_LISTNODE(ListNode, CALLBACK_FN_ENTRY, Node);
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FnTableEntry->CallbackFn(Guid,
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(Guid == NULL) ? TokenNumber : ExTokenNumber,
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Data,
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Size);
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ListNode = GetNextNode (ListHead, ListNode);
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}
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return;
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}
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EFI_STATUS
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SetWorker (
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PCD_TOKEN_NUMBER TokenNumber,
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VOID *Data,
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UINTN Size,
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BOOLEAN PtrType
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)
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{
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UINT32 *LocalTokenNumberTable;
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BOOLEAN IsPeiDb;
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UINT32 LocalTokenNumber;
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EFI_GUID *GuidTable;
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UINT16 *StringTable;
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EFI_GUID *Guid;
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UINT16 *Name;
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VOID *InternalData;
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VARIABLE_HEAD *VariableHead;
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UINTN Offset;
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UINT8 *PcdDb;
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ASSERT (TokenNumber < PCD_TOTAL_TOKEN_NUMBER);
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if (PtrType) {
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ASSERT (Size <= DxePcdGetSize (TokenNumber));
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} else {
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ASSERT (Size == DxePcdGetSize (TokenNumber));
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}
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IsPeiDb = (TokenNumber <= PEI_LOCAL_TOKEN_NUMBER) ? TRUE : FALSE;
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LocalTokenNumberTable = IsPeiDb ? mPcdDatabase->PeiDb.Init.LocalTokenNumberTable :
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mPcdDatabase->DxeDb.Init.LocalTokenNumberTable;
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if ((TokenNumber < PEI_NEX_TOKEN_NUMBER) ||
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(TokenNumber >= PEI_LOCAL_TOKEN_NUMBER || TokenNumber < (PEI_LOCAL_TOKEN_NUMBER + DXE_NEX_TOKEN_NUMBER))) {
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InvokeCallbackOnSet (0, NULL, TokenNumber, Data, Size);
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}
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TokenNumber = IsPeiDb ? TokenNumber
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: TokenNumber - PEI_LOCAL_TOKEN_NUMBER;
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LocalTokenNumber = LocalTokenNumberTable[TokenNumber];
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if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == PCD_TYPE_SKU_ENABLED) {
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LocalTokenNumber = GetSkuEnabledTokenNumber (LocalTokenNumber & ~PCD_TYPE_SKU_ENABLED, Size, IsPeiDb);
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}
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Offset = LocalTokenNumber & PCD_DATABASE_OFFSET_MASK;
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PcdDb = IsPeiDb ? ((UINT8 *) &mPcdDatabase->PeiDb) : ((UINT8 *) &mPcdDatabase->DxeDb);
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StringTable = IsPeiDb ? mPcdDatabase->PeiDb.Init.StringTable :
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mPcdDatabase->DxeDb.Init.StringTable;
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InternalData = PcdDb + Offset;
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switch (LocalTokenNumber & ~PCD_DATABASE_OFFSET_MASK) {
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case PCD_TYPE_VPD:
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ASSERT (FALSE);
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return EFI_INVALID_PARAMETER;
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case PCD_TYPE_STRING:
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CopyMem (&StringTable[*((UINT16 *)InternalData)], Data, Size);
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break;
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case PCD_TYPE_HII:
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//
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// Bug Bug: Please implement this
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//
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GuidTable = IsPeiDb ? mPcdDatabase->PeiDb.Init.GuidTable :
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mPcdDatabase->DxeDb.Init.GuidTable;
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VariableHead = (VARIABLE_HEAD *) (PcdDb + Offset);
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Guid = &(GuidTable[VariableHead->GuidTableIndex]);
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Name = &(StringTable[VariableHead->StringIndex]);
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return EFI_SUCCESS;
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case PCD_TYPE_DATA:
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if (PtrType) {
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CopyMem (InternalData, Data, Size);
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return EFI_SUCCESS;
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}
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switch (Size) {
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case sizeof(UINT8):
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*((UINT8 *) InternalData) = *((UINT8 *) Data);
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return EFI_SUCCESS;
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case sizeof(UINT16):
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*((UINT16 *) InternalData) = *((UINT16 *) Data);
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return EFI_SUCCESS;
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case sizeof(UINT32):
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*((UINT32 *) InternalData) = *((UINT32 *) Data);
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return EFI_SUCCESS;
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case sizeof(UINT64):
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*((UINT64 *) InternalData) = *((UINT64 *) Data);
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return EFI_SUCCESS;
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default:
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ASSERT (FALSE);
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return EFI_NOT_FOUND;
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}
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default:
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ASSERT (FALSE);
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break;
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}
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ASSERT (FALSE);
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return EFI_NOT_FOUND;
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}
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VOID *
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ExGetWorker (
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IN CONST EFI_GUID *Guid,
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IN UINTN ExTokenNumber,
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IN UINTN GetSize
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)
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{
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return GetWorker(GetExPcdTokenNumber (Guid, ExTokenNumber), GetSize);
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}
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|
EFI_STATUS
|
|
ExSetWorker (
|
|
IN PCD_TOKEN_NUMBER ExTokenNumber,
|
|
IN CONST EFI_GUID *Guid,
|
|
VOID *Data,
|
|
UINTN SetSize,
|
|
BOOLEAN PtrType
|
|
)
|
|
{
|
|
PCD_TOKEN_NUMBER TokenNumber;
|
|
|
|
TokenNumber = GetExPcdTokenNumber (Guid, ExTokenNumber);
|
|
|
|
InvokeCallbackOnSet (ExTokenNumber, Guid, TokenNumber, Data, SetSize);
|
|
|
|
SetWorker (TokenNumber, Data, SetSize, PtrType);
|
|
|
|
return EFI_SUCCESS;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
EFI_STATUS
|
|
SetHiiVariable (
|
|
IN EFI_GUID *VariableGuid,
|
|
IN UINT16 *VariableName,
|
|
IN CONST VOID *Data,
|
|
IN UINTN DataSize,
|
|
IN UINTN Offset
|
|
)
|
|
{
|
|
UINTN Size;
|
|
VOID *Buffer;
|
|
EFI_STATUS Status;
|
|
UINT32 Attribute;
|
|
|
|
Size = 0;
|
|
|
|
Status = EfiGetVariable (
|
|
(UINT16 *)VariableName,
|
|
VariableGuid,
|
|
&Attribute,
|
|
&Size,
|
|
NULL
|
|
);
|
|
|
|
ASSERT (Status == EFI_BUFFER_TOO_SMALL);
|
|
|
|
Buffer = AllocatePool (Size);
|
|
|
|
ASSERT (Buffer != NULL);
|
|
|
|
Status = EfiGetVariable (
|
|
VariableName,
|
|
VariableGuid,
|
|
&Attribute,
|
|
&Size,
|
|
Buffer
|
|
);
|
|
|
|
|
|
CopyMem ((UINT8 *)Buffer + Offset, Data, DataSize);
|
|
|
|
return EfiSetVariable (
|
|
VariableName,
|
|
VariableGuid,
|
|
Attribute,
|
|
Size,
|
|
Buffer
|
|
);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
PCD_TOKEN_NUMBER
|
|
GetExPcdTokenNumber (
|
|
IN CONST EFI_GUID *Guid,
|
|
IN PCD_TOKEN_NUMBER ExTokenNumber
|
|
)
|
|
{
|
|
UINT32 i;
|
|
DYNAMICEX_MAPPING *ExMap;
|
|
EFI_GUID *GuidTable;
|
|
EFI_GUID *MatchGuid;
|
|
UINTN MatchGuidIdx;
|
|
|
|
ExMap = mPcdDatabase->PeiDb.Init.ExMapTable;
|
|
GuidTable = mPcdDatabase->PeiDb.Init.GuidTable;
|
|
|
|
MatchGuid = ScanGuid (GuidTable, sizeof(mPcdDatabase->PeiDb.Init.GuidTable), Guid);
|
|
ASSERT (MatchGuid != NULL);
|
|
|
|
MatchGuidIdx = MatchGuid - GuidTable;
|
|
|
|
for (i = 0; i < PEI_EXMAPPING_TABLE_SIZE; i++) {
|
|
if ((ExTokenNumber == ExMap[i].ExTokenNumber) &&
|
|
(MatchGuidIdx == ExMap[i].ExGuidIndex)) {
|
|
return ExMap[i].LocalTokenNumber;
|
|
|
|
}
|
|
}
|
|
|
|
ExMap = mPcdDatabase->DxeDb.Init.ExMapTable;
|
|
GuidTable = mPcdDatabase->DxeDb.Init.GuidTable;
|
|
|
|
MatchGuid = ScanGuid (GuidTable, sizeof(mPcdDatabase->DxeDb.Init.GuidTable), Guid);
|
|
ASSERT (MatchGuid != NULL);
|
|
|
|
MatchGuidIdx = MatchGuid - GuidTable;
|
|
|
|
for (i = 0; i < DXE_EXMAPPING_TABLE_SIZE; i++) {
|
|
if ((ExTokenNumber == ExMap[i].ExTokenNumber) &&
|
|
(MatchGuidIdx == ExMap[i].ExGuidIndex)) {
|
|
return ExMap[i].LocalTokenNumber + PEI_LOCAL_TOKEN_NUMBER;
|
|
}
|
|
}
|
|
|
|
ASSERT (FALSE);
|
|
|
|
return 0;
|
|
}
|
|
|