[edk2-devel] [PATCH v2 1/2] MdePkg/BaseFdtLib: Add Fdt function.

[Guo, Gua]

Reviewed-by: Gua Guo <gua.guo at intel.com>

-----Original Message-----
From: Wang, BruceX <brucex.wang at intel.com> 
Sent: Friday, September 15, 2023 4:58 PM
To: devel at edk2.groups.io
Cc: Wang, BruceX <brucex.wang at intel.com>; Lin, Benny <benny.lin at intel.com>; Guo, Gua <gua.guo at intel.com>; Chiu, Chasel <chasel.chiu at intel.com>; Lu, James <james.lu at intel.com>
Subject: [PATCH v2 1/2] MdePkg/BaseFdtLib: Add Fdt function.

From: "Brucex.Wang" <brucex.wang at intel.com>

Add FdtGetName() and FdtNodeDepth() function.

Cc: Benny Lin <benny.lin at intel.com>
Cc: Gua Guo <gua.guo at intel.com>
Cc: Chasel Chiu <chasel.chiu at intel.com>
Cc: James Lu <james.lu at intel.com>

Signed-off-by: BruceX Wang <brucex.wang at 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..2bd926b5b4 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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