From: "Brucex.Wang" <brucex.w...@intel.com>
Add FdtGetName() and FdtNodeDepth() function.
Cc: Benny Lin <benny....@intel.com>
Cc: Gua Guo <gua....@intel.com>
Cc: Chasel Chiu <chasel.c...@intel.com>
Cc: James Lu <james...@intel.com>
Signed-off-by: BruceX Wang <brucex.w...@intel.com>
---
MdePkg/Include/Library/FdtLib.h | 34 +++++++++++++++++++++++++
MdePkg/Library/BaseFdtLib/FdtLib.c | 40 ++++++++++++++++++++++++++++++
2 files changed, 74 insertions(+)
diff --git a/MdePkg/Include/Library/FdtLib.h b/MdePkg/Include/Library/FdtLib.h
index cf5ceba9e9..d9300a18e3 100644
--- a/MdePkg/Include/Library/FdtLib.h
+++ b/MdePkg/Include/Library/FdtLib.h
@@ -398,4 +398,38 @@ FdtSetProp (
IN UINT32 Length
);
+/**
+ Returns the name of a given node.
+
+ @param[in] Fdt The pointer to FDT blob.
+ @param[in] NodeOffse Offset of node to check.
+ @param[in] Length The pointer to an integer variable (will be
overwritten) or NULL.
+
+ @return The pointer to the node's name.
+
+**/
+CONST CHAR8 *
+EFIAPI
+FdtGetName (
+ IN VOID *Fdt,
+ IN INT32 NodeOffset,
+ IN UINT32 *Length
+ );
+
+/**
+ FdtNodeDepth() finds the depth of a given node. The root node
+ has depth 0, its immediate subnodes depth 1 and so forth.
+
+ @param[in] Fdt The pointer to FDT blob.
+ @param[in] NodeOffset Offset of node to check.
+
+ @return Depth of the node at NodeOffset.
+**/
+INT32
+EFIAPI
+FdtNodeDepth (
+ IN CONST VOID *Fdt,
+ IN INT32 NodeOffset
+ );
+
#endif /* FDT_LIB_H_ */
diff --git a/MdePkg/Library/BaseFdtLib/FdtLib.c
b/MdePkg/Library/BaseFdtLib/FdtLib.c
index 090b0b3fd4..1ef99ea882 100644
--- a/MdePkg/Library/BaseFdtLib/FdtLib.c
+++ b/MdePkg/Library/BaseFdtLib/FdtLib.c
@@ -402,3 +402,43 @@ FdtSetProp (
{
return fdt_setprop (Fdt, NodeOffset, Name, Value, (int)Length);
}
+
+/**
+ Returns the name of a given node.
+
+ @param[in] Fdt The pointer to FDT blob.
+ @param[in] NodeOffset Offset of node to check.
+ @param[in] Length The pointer to an integer variable (will be
overwritten) or NULL.
+
+ @return The pointer to the node's name.
+
+**/
+CONST CHAR8 *
+EFIAPI
+FdtGetName (
+ IN VOID *Fdt,
+ IN INT32 NodeOffset,
+ IN UINT32 *Length
+ )
+{
+ return fdt_get_name (Fdt, NodeOffset, (int *)Length);
+}
+
+/**
+ FdtNodeDepth() finds the depth of a given node. The root node
+ has depth 0, its immediate subnodes depth 1 and so forth.
+
+ @param[in] Fdt The pointer to FDT blob.
+ @param[in] NodeOffset Offset of node to check.
+
+ @returns Depth of the node at NodeOffset.
+**/
+INT32
+EFIAPI
+FdtNodeDepth (
+ IN CONST VOID *Fdt,
+ IN INT32 NodeOffset
+ )
+{
+ return fdt_node_depth (Fdt, NodeOffset);
+}
--
2.39.1.windows.1
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