init. 1AQQW051HEADmaster

1 files changed, 326 insertions, 0 deletions

diff --git a/Core/EM/ACPI/AmlChild.c b/Core/EM/ACPI/AmlChild.c
new file mode 100644
index 0000000..1c6ecc2
--- /dev/null
+++ b/Core/EM/ACPI/AmlChild.c
@@ -0,0 +1,326 @@
+//**********************************************************************
+//**********************************************************************
+//**                                                                  **
+//**        (C)Copyright 1985-2011, American Megatrends, Inc.         **
+//**                                                                  **
+//**                       All Rights Reserved.                       **
+//**                                                                  **
+//**      5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093        **
+//**                                                                  **
+//**                       Phone: (770)-246-8600                      **
+//**                                                                  **
+//**********************************************************************
+//**********************************************************************
+
+//**********************************************************************
+// $Header: /Alaska/BIN/Modules/ACPI/Template/Core/AmlChild.c 2     5/14/11 2:10p Yakovlevs $
+//
+// $Revision: 2 $
+//
+// $Date: 5/14/11 2:10p $
+//**********************************************************************
+// Revision History
+// ----------------
+// $Log: /Alaska/BIN/Modules/ACPI/Template/Core/AmlChild.c $
+// 
+// 2     5/14/11 2:10p Yakovlevs
+// [TAG]  		EIP 56526
+// [Category]  	New Feature
+// [Description]  	ACPI Manipulation Protocol. PI 1.2 Spec Vol 5 Section
+// 9. Initial checkin.
+// [Files]  		AcpiCore.c; AcpiCore.h; AcpiSdtPrivate.h; Aml.c; AmlChild.c;
+// AmlNamespace.c; AmlOption.c; AmlString.c AcpiSdt.c; 
+// Protocol\AcpiSdt.h. 
+// 
+//**********************************************************************
+
+
+//**********************************************************************
+//<AMI_FHDR_START>
+//
+// Name: AmlChild.c
+//
+// Description:	
+//  ACPI AML Name space parsing/manipulation functions for ACPI SDT.
+//
+//<AMI_FHDR_END>
+//**********************************************************************
+
+#include "AcpiCore.h"
+
+/**
+  Return the child objects buffer from AML Handle's buffer.
+  
+  @param[in]        AmlParentHandle Parent handle.
+  @param[in]        CurrentBuffer   The current child buffer.
+  @param[out]       Buffer          On return, points to the next returned child buffer or NULL if there are no
+                                    child buffer.
+
+  @retval EFI_SUCCESS               Success
+  @retval EFI_INVALID_PARAMETER     AmlParentHandle does not refer to a valid ACPI object.                                
+**/
+EFI_STATUS
+AmlGetChildFromObjectBuffer (
+  IN EFI_AML_HANDLE         *AmlParentHandle,
+  IN UINT8                  *CurrentBuffer,
+  OUT VOID                  **Buffer
+  )
+{
+  AML_BYTE_ENCODING   *AmlByteEncoding;
+  UINTN               DataSize;
+
+  //
+  // Root is considered as SCOPE, which has TermList.
+  // We need return only Object in TermList.
+  //
+  while ((UINTN)CurrentBuffer < (UINTN)(AmlParentHandle->Buffer + AmlParentHandle->Size)) {
+    AmlByteEncoding = AmlSearchByOpByte (CurrentBuffer);
+    if (AmlByteEncoding == NULL) {
+      return EFI_INVALID_PARAMETER;
+    }
+    //
+    // NOTE: We need return everything, because user might need parse the returned object.
+    //
+    if ((AmlByteEncoding->Attribute & AML_IS_NAME_CHAR) == 0) {
+      *Buffer = CurrentBuffer;
+      return EFI_SUCCESS;
+    }
+
+    DataSize = AmlGetObjectSize (
+                 AmlByteEncoding,
+                 CurrentBuffer,
+                 (UINTN)AmlParentHandle->Buffer + AmlParentHandle->Size - (UINTN)CurrentBuffer
+                 );
+    if (DataSize == 0) {
+      return EFI_INVALID_PARAMETER;
+    }
+    CurrentBuffer += DataSize;
+  }
+
+  //
+  // No more
+  //
+  *Buffer = NULL;
+  return EFI_SUCCESS;
+}
+
+/**
+  Return the child ACPI objects from Root Handle.
+  
+  @param[in]        AmlParentHandle Parent handle. It is Root Handle.
+  @param[in]        AmlHandle       The previously returned handle or NULL to start with the first handle.
+  @param[out]       Buffer          On return, points to the next returned ACPI handle or NULL if there are no
+                                    child objects.
+
+  @retval EFI_SUCCESS               Success
+  @retval EFI_INVALID_PARAMETER     ParentHandle is NULL or does not refer to a valid ACPI object.                                
+**/
+EFI_STATUS
+AmlGetChildFromRoot (
+  IN EFI_AML_HANDLE         *AmlParentHandle,
+  IN EFI_AML_HANDLE         *AmlHandle,
+  OUT VOID                  **Buffer
+  )
+{
+  UINT8               *CurrentBuffer;
+
+  if (AmlHandle == NULL) {
+    //
+    // First One
+    //
+    CurrentBuffer = (VOID *)AmlParentHandle->Buffer;
+  } else {
+    CurrentBuffer = (VOID *)(AmlHandle->Buffer + AmlHandle->Size);
+  }
+
+  return AmlGetChildFromObjectBuffer (AmlParentHandle, CurrentBuffer, Buffer);
+}
+
+/**
+  Return the child objects buffer from AML Handle's option list.
+  
+  @param[in]        AmlParentHandle Parent handle.
+  @param[in]        AmlHandle       The current child handle.
+  @param[out]       Buffer          On return, points to the next returned child buffer or NULL if there are no
+                                    child buffer.
+
+  @retval EFI_SUCCESS               Success
+  @retval EFI_INVALID_PARAMETER     AmlParentHandle does not refer to a valid ACPI object.                                
+**/
+EFI_STATUS
+AmlGetChildFromOptionList (
+  IN EFI_AML_HANDLE         *AmlParentHandle,
+  IN EFI_AML_HANDLE         *AmlHandle,
+  OUT VOID                  **Buffer
+  )
+{
+  EFI_ACPI_DATA_TYPE  DataType;
+  VOID                *Data;
+  UINTN               DataSize;
+  AML_OP_PARSE_INDEX  Index;
+  EFI_STATUS          Status;
+  AML_OP_PARSE_INDEX  MaxTerm;
+
+  Index = AML_OP_PARSE_INDEX_GET_TERM1;
+  MaxTerm = AmlParentHandle->AmlByteEncoding->MaxIndex;
+  while (Index <= MaxTerm) {
+    Status = AmlParseOptionHandleCommon (
+               AmlParentHandle,
+               (AML_OP_PARSE_INDEX)Index,
+               &DataType,
+               (VOID **)&Data,
+               &DataSize
+               );
+    if (EFI_ERROR (Status)) {
+      return EFI_INVALID_PARAMETER;
+    }
+    if (DataType == EFI_ACPI_DATA_TYPE_NONE) {
+      //
+      // Not found
+      //
+      break;
+    }
+
+    //
+    // Find it, and Check Data
+    //
+    if ((DataType == EFI_ACPI_DATA_TYPE_CHILD) &&
+        ((UINTN)AmlHandle->Buffer < (UINTN)Data)) {
+      //
+      // Buffer < Data means current node is next one
+      //
+      *Buffer = Data;
+      return EFI_SUCCESS;
+    }
+    //
+    // Not Child
+    //
+    Index ++;
+  }
+
+  *Buffer = NULL;
+  return EFI_SUCCESS;
+}
+
+/**
+  Return the child objects buffer from AML Handle's object child list.
+  
+  @param[in]        AmlParentHandle Parent handle.
+  @param[in]        AmlHandle       The current child handle.
+  @param[out]       Buffer          On return, points to the next returned child buffer or NULL if there are no
+                                    child buffer.
+
+  @retval EFI_SUCCESS               Success
+  @retval EFI_INVALID_PARAMETER     AmlParentHandle does not refer to a valid ACPI object.                                
+**/
+EFI_STATUS
+AmlGetChildFromObjectChildList (
+  IN EFI_AML_HANDLE         *AmlParentHandle,
+  IN EFI_AML_HANDLE         *AmlHandle,
+  OUT VOID                  **Buffer
+  )
+{
+  EFI_STATUS          Status;
+  UINT8               *CurrentBuffer;
+
+  if ((AmlParentHandle->AmlByteEncoding->Attribute & AML_HAS_CHILD_OBJ) == 0) {
+    //
+    // No ObjectList
+    //
+    *Buffer = NULL;
+    return EFI_SUCCESS;
+  }
+
+  //
+  // Do we need add node within METHOD?
+  // Yes, just add Object is OK. But we need filter NameString for METHOD invoke.
+  //
+
+  //
+  // Now, we get the last node.
+  //
+  Status = AmlGetOffsetAfterLastOption (AmlParentHandle, &CurrentBuffer);
+  if (EFI_ERROR (Status)) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  //
+  // Go through all the reset buffer.
+  //
+  if ((UINTN)AmlHandle->Buffer < (UINTN)CurrentBuffer) {
+    //
+    // Buffer < Data means next node is first object
+    //
+  } else if ((UINTN)AmlHandle->Buffer + AmlHandle->Size < (UINTN)AmlParentHandle->Buffer + AmlParentHandle->Size) {
+    //
+    // There is still more node
+    //
+    CurrentBuffer = AmlHandle->Buffer + AmlHandle->Size;
+  } else {
+    //
+    // No more data
+    //
+    *Buffer = NULL;
+    return EFI_SUCCESS;
+  }
+
+  return AmlGetChildFromObjectBuffer (AmlParentHandle, CurrentBuffer, Buffer);
+}
+
+/**
+  Return the child ACPI objects from Non-Root Handle.
+  
+  @param[in]        AmlParentHandle Parent handle. It is Non-Root Handle.
+  @param[in]        AmlHandle       The previously returned handle or NULL to start with the first handle.
+  @param[out]       Buffer          On return, points to the next returned ACPI handle or NULL if there are no
+                                    child objects.
+
+  @retval EFI_SUCCESS               Success
+  @retval EFI_INVALID_PARAMETER     ParentHandle is NULL or does not refer to a valid ACPI object.                                
+**/
+EFI_STATUS
+AmlGetChildFromNonRoot (
+  IN EFI_AML_HANDLE         *AmlParentHandle,
+  IN EFI_AML_HANDLE         *AmlHandle,
+  OUT VOID                  **Buffer
+  )
+{
+  EFI_STATUS          Status;
+
+  if (AmlHandle == NULL) {
+    //
+    // NULL means first one
+    //
+    AmlHandle = AmlParentHandle;
+  }
+
+  //
+  // 1. Get Option
+  //
+  Status = AmlGetChildFromOptionList (AmlParentHandle, AmlHandle, Buffer);
+  if (EFI_ERROR (Status)) {
+    return EFI_INVALID_PARAMETER;
+  }
+  if (*Buffer != NULL) {
+    return EFI_SUCCESS;
+  }
+
+  //
+  // 2. search ObjectList
+  //
+  return AmlGetChildFromObjectChildList (AmlParentHandle, AmlHandle, Buffer);
+}
+
+//**********************************************************************
+//**********************************************************************
+//**                                                                  **
+//**        (C)Copyright 1985-2011, American Megatrends, Inc.         **
+//**                                                                  **
+//**                       All Rights Reserved.                       **
+//**                                                                  **
+//**      5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093        **
+//**                                                                  **
+//**                       Phone: (770)-246-8600                      **
+//**                                                                  **
+//**********************************************************************
+//**********************************************************************