diff options
Diffstat (limited to 'MdePkg')
| -rw-r--r-- | MdePkg/Include/Library/FdtLib.h | 115 | ||||
| -rw-r--r-- | MdePkg/Library/BaseFdtLib/FdtLib.c | 157 |
2 files changed, 272 insertions, 0 deletions
diff --git a/MdePkg/Include/Library/FdtLib.h b/MdePkg/Include/Library/FdtLib.h index 1a36f58ebe..a7d26f765d 100644 --- a/MdePkg/Include/Library/FdtLib.h +++ b/MdePkg/Include/Library/FdtLib.h @@ -334,6 +334,23 @@ FdtCreateEmptyTree ( );
/**
+ Returns a pointer to the node at a given offset.
+
+ @param[in] Fdt The pointer to FDT blob.
+ @param[in] Offset The offset to node.
+ @param[in] Length Maximum length of node.
+
+ @return pointer to node.
+**/
+CONST VOID *
+EFIAPI
+FdtOffsetPointer (
+ IN CONST VOID *Fdt,
+ IN INT32 Offset,
+ IN UINT32 Length
+ );
+
+/**
Returns a offset of next node from the given node.
@param[in] Fdt The pointer to FDT blob.
@@ -438,6 +455,21 @@ FdtGetReserveMapEntry ( );
/**
+ Find the parent of a given node.
+
+ @param[in] Fdt The pointer to FDT blob.
+ @param[in] NodeOffset The offset to the node to find the parent for.
+
+ @return Structure block offset, or negative return value.
+**/
+INT32
+EFIAPI
+FdtParentOffset (
+ IN CONST VOID *Fdt,
+ IN INT32 NodeOffset
+ );
+
+/**
Returns a offset of first node which includes the given property name and value.
@param[in] Fdt The pointer to FDT blob.
@@ -460,6 +492,38 @@ FdtNodeOffsetByPropertyValue ( );
/**
+ Returns a offset of first node which includes the given property name and value.
+
+ @param[in] Fdt The pointer to FDT blob.
+ @param[in] Phandle Phandle value to search for.
+
+ @return The offset to node with matching Phandle value.
+**/
+INT32
+EFIAPI
+FdtNodeOffsetByPhandle (
+ IN CONST VOID *Fdt,
+ IN UINT32 Phandle
+ );
+
+/**
+ Look for a string in a stringlist
+
+ @param[in] StringList Pointer to stringlist to search.
+ @param[in] ListLength Length of StringList.
+ @param[in] String Pointer to string to search for.
+
+ @return 1 if found.
+**/
+INT32
+EFIAPI
+FdtStringListContains (
+ IN CONST CHAR8 *StringList,
+ IN INT32 ListLength,
+ IN CONST CHAR8 *String
+ );
+
+/**
Returns a property with the given name from the given node.
@param[in] Fdt The pointer to FDT blob.
@@ -481,6 +545,25 @@ FdtGetProperty ( );
/**
+ Returns a pointer to a node mapped to an alias matching a substring.
+
+ @param[in] Fdt The pointer to FDT blob.
+ @param[in] Name The alias name string.
+ @param[in] Length The length to the size of the property found.
+
+ @return A pointer to the expansion of the alias matching the substring,
+ or NULL if alias not found.
+
+**/
+CONST CHAR8 *
+EFIAPI
+FdtGetAliasNameLen (
+ IN CONST VOID *Fdt,
+ IN CONST CHAR8 *Name,
+ IN INT32 Length
+ );
+
+/**
Returns a offset of first property in the given node.
@param[in] Fdt The pointer to FDT blob.
@@ -651,6 +734,38 @@ FdtDelProp ( );
/**
+ Finds a tree node by substring
+
+ @param[in] Fdt The pointer to FDT blob.
+ @param[in] Path Full path of the node to locate.
+ @param[in] NameLength The length of the name to check only.
+
+ @return structure block offset of the node with the requested path (>=0), on success
+**/
+INT32
+EFIAPI
+FdtPathOffsetNameLen (
+ IN CONST VOID *Fdt,
+ IN CONST CHAR8 *Path,
+ IN INT32 NameLength
+ );
+
+/**
+ Finds a tree node by its full path.
+
+ @param[in] Fdt The pointer to FDT blob.
+ @param[in] Path Full path of the node to locate.
+
+ @return structure block offset of the node with the requested path (>=0), on success
+**/
+INT32
+EFIAPI
+FdtPathOffset (
+ IN CONST VOID *Fdt,
+ IN CONST CHAR8 *Path
+ );
+
+/**
Returns the name of a given node.
@param[in] Fdt The pointer to FDT blob.
diff --git a/MdePkg/Library/BaseFdtLib/FdtLib.c b/MdePkg/Library/BaseFdtLib/FdtLib.c index 960984842d..ebddf4a00f 100644 --- a/MdePkg/Library/BaseFdtLib/FdtLib.c +++ b/MdePkg/Library/BaseFdtLib/FdtLib.c @@ -186,6 +186,26 @@ FdtPack ( }
/**
+ Returns a pointer to the node at a given offset.
+
+ @param[in] Fdt The pointer to FDT blob.
+ @param[in] Offset The offset to node.
+ @param[in] Length Maximum length of node.
+
+ @return pointer to node.
+**/
+CONST VOID *
+EFIAPI
+FdtOffsetPointer (
+ IN CONST VOID *Fdt,
+ IN INT32 Offset,
+ IN UINT32 Length
+ )
+{
+ return fdt_offset_ptr (Fdt, Offset, Length);
+}
+
+/**
Returns a offset of next node from the given node.
@param[in] Fdt The pointer to FDT blob.
@@ -308,6 +328,45 @@ FdtSubnodeOffsetNameLen ( }
/**
+ Returns a offset of first node which matches the given name.
+
+ @param[in] Fdt The pointer to FDT blob.
+ @param[in] ParentOffset The offset to the node which start find under.
+ @param[in] Name The name to search the node with the name.
+
+ @return The offset to node offset with given node name.
+
+ **/
+INT32
+EFIAPI
+FdtSubnodeOffset (
+ IN CONST VOID *Fdt,
+ IN INT32 ParentOffset,
+ IN CONST CHAR8 *Name
+ )
+{
+ return fdt_subnode_offset (Fdt, ParentOffset, Name);
+}
+
+/**
+ Find the parent of a given node.
+
+ @param[in] Fdt The pointer to FDT blob.
+ @param[in] NodeOffset The offset to the node to find the parent for.
+
+ @return Structure block offset, or negative return value.
+**/
+INT32
+EFIAPI
+FdtParentOffset (
+ IN CONST VOID *Fdt,
+ IN INT32 NodeOffset
+ )
+{
+ return fdt_parent_offset (Fdt, NodeOffset);
+}
+
+/**
Returns a offset of first node which includes the given property name and value.
@param[in] Fdt The pointer to FDT blob.
@@ -333,6 +392,44 @@ FdtNodeOffsetByPropertyValue ( }
/**
+ Returns a offset of first node which includes the given property name and value.
+
+ @param[in] Fdt The pointer to FDT blob.
+ @param[in] Phandle Phandle value to search for.
+
+ @return The offset to node with matching Phandle value.
+**/
+INT32
+EFIAPI
+FdtNodeOffsetByPhandle (
+ IN CONST VOID *Fdt,
+ IN UINT32 Phandle
+ )
+{
+ return fdt_node_offset_by_phandle (Fdt, Phandle);
+}
+
+/**
+ Look for a string in a stringlist
+
+ @param[in] StringList Pointer to stringlist to search.
+ @param[in] ListLength Length of StringList.
+ @param[in] String Pointer to string to search for.
+
+ @return 1 if found.
+**/
+INT32
+EFIAPI
+FdtStringListContains (
+ IN CONST CHAR8 *StringList,
+ IN INT32 ListLength,
+ IN CONST CHAR8 *String
+ )
+{
+ return fdt_stringlist_contains (StringList, ListLength, String);
+}
+
+/**
Returns a property with the given name from the given node.
@param[in] Fdt The pointer to FDT blob.
@@ -357,6 +454,28 @@ FdtGetProperty ( }
/**
+ Returns a pointer to a node mapped to an alias matching a substring.
+
+ @param[in] Fdt The pointer to FDT blob.
+ @param[in] Name The alias name string.
+ @param[in] Length The length to the size of the property found.
+
+ @return A pointer to the expansion of the alias matching the substring,
+ or NULL if alias not found.
+
+**/
+CONST CHAR8 *
+EFIAPI
+FdtGetAliasNameLen (
+ IN CONST VOID *Fdt,
+ IN CONST CHAR8 *Name,
+ IN INT32 Length
+ )
+{
+ return fdt_get_alias_namelen (Fdt, Name, Length);
+}
+
+/**
Returns a offset of first property in the given node.
@param[in] Fdt The pointer to FDT blob.
@@ -558,6 +677,44 @@ FdtDelProp ( }
/**
+ Finds a tree node by substring
+
+ @param[in] Fdt The pointer to FDT blob.
+ @param[in] Path Full path of the node to locate.
+ @param[in] NameLength The length of the name to check only.
+
+ @return structure block offset of the node with the requested path (>=0), on success
+**/
+INT32
+EFIAPI
+FdtPathOffsetNameLen (
+ IN CONST VOID *Fdt,
+ IN CONST CHAR8 *Path,
+ IN INT32 NameLength
+ )
+{
+ return fdt_path_offset_namelen (Fdt, Path, NameLength);
+}
+
+/**
+ Finds a tree node by its full path.
+
+ @param[in] Fdt The pointer to FDT blob.
+ @param[in] Path Full path of the node to locate.
+
+ @return structure block offset of the node with the requested path (>=0), on success
+**/
+INT32
+EFIAPI
+FdtPathOffset (
+ IN CONST VOID *Fdt,
+ IN CONST CHAR8 *Path
+ )
+{
+ return fdt_path_offset (Fdt, Path);
+}
+
+/**
Returns the name of a given node.
@param[in] Fdt The pointer to FDT blob.
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