1 files changed, 26 insertions, 0 deletions
diff --git a/include/ufdt_overlay.h b/include/ufdt_overlay.h
new file mode 100644
index 0000000..ed4bf87
--- /dev/null
+++ b/include/ufdt_overlay.h
@@ -0,0 +1,26 @@
+#ifndef UFDT_OVERLAY_H
+#define UFDT_OVERLAY_H
+
+#include <libfdt.h>
+
+/* Given a buffer in RAM containing the contents of a .dtb file,
+ * it initializes an FDT in-place and returns a pointer to the
+ * given buffer, or NULL in case of error.
+ * In case of error, it may printf() diagnostic messages.
+ */
+struct fdt_header *ufdt_install_blob(void *blob, size_t blob_size);
+
+/* Given a main_fdt_header buffer and an overlay_fdtp buffer containing the
+ * contents of a .dtbo file, it creates a new FDT containing the applied
+ * overlay_fdtp in a dto_malloc'd buffer and returns it, or NULL in case of
+ * error.
+ * It is allowed to modify the buffers (both main_fdt_header and overlay_fdtp
+ * buffer) passed in.
+ * It does not dto_free main_fdt_header and overlay_fdtp buffer passed in.
+ */
+struct fdt_header *ufdt_apply_overlay(struct fdt_header *main_fdt_header,
+                                      size_t main_fdt_size,
+                                      void *overlay_fdtp,
+                                      size_t overlay_size);
+
+#endif /* UFDT_OVERLAY_H */