diff --git a/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h b/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h index 9ca34f61ba..af18bf8e48 100644 --- a/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h +++ b/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h @@ -166,6 +166,39 @@ AmlDetachNode ( IN AML_NODE_HANDLE Node ); +/** Attach a node in an AML tree. + + The node will be added as the last statement of the ParentNode. + E.g.: + ASL code corresponding to NewNode: + Name (_UID, 0) + + ASL code corresponding to ParentNode: + Device (PCI0) { + Name(_HID, EISAID("PNP0A08")) + } + + "AmlAttachNode (ParentNode, NewNode)" will result in: + ASL code: + Device (PCI0) { + Name(_HID, EISAID("PNP0A08")) + Name (_UID, 0) + } + + @param [in] ParentNode Pointer to the parent node. + Must be a root or an object node. + @param [in] NewNode Pointer to the node to add. + + @retval EFI_SUCCESS The function completed successfully. + @retval EFI_INVALID_PARAMETER Invalid parameter. +**/ +EFI_STATUS +EFIAPI +AmlAttachNode ( + IN AML_NODE_HANDLE ParentNode, + IN AML_NODE_HANDLE NewNode + ); + /** Find a node in the AML namespace, given an ASL path and a reference Node. - The AslPath can be an absolute path, or a relative path from the diff --git a/DynamicTablesPkg/Library/Common/AmlLib/Api/AmlApi.c b/DynamicTablesPkg/Library/Common/AmlLib/Api/AmlApi.c index e6802d211e..519afdc1ea 100644 --- a/DynamicTablesPkg/Library/Common/AmlLib/Api/AmlApi.c +++ b/DynamicTablesPkg/Library/Common/AmlLib/Api/AmlApi.c @@ -394,6 +394,42 @@ AmlNameOpGetNextRdNode ( return EFI_SUCCESS; } +/** Attach a node in an AML tree. + + The node will be added as the last statement of the ParentNode. + E.g.: + ASL code corresponding to NewNode: + Name (_UID, 0) + + ASL code corresponding to ParentNode: + Device (PCI0) { + Name(_HID, EISAID("PNP0A08")) + } + + "AmlAttachNode (ParentNode, NewNode)" will result in: + ASL code: + Device (PCI0) { + Name(_HID, EISAID("PNP0A08")) + Name (_UID, 0) + } + + @param [in] ParentNode Pointer to the parent node. + Must be a root or an object node. + @param [in] NewNode Pointer to the node to add. + + @retval EFI_SUCCESS The function completed successfully. + @retval EFI_INVALID_PARAMETER Invalid parameter. +**/ +EFI_STATUS +EFIAPI +AmlAttachNode ( + IN AML_NODE_HANDLE ParentNode, + IN AML_NODE_HANDLE NewNode + ) +{ + return AmlVarListAddTail (ParentNode, NewNode); +} + // DEPRECATED APIS #ifndef DISABLE_NEW_DEPRECATED_INTERFACES