AdjustBgMosaic documentation upgrade

include/bg.h

@@ -25,6 +25,17 @@ enum
     BG_CTRL_ATTR_WRAPAROUND = 8,
 };
 
+enum AdjustBgMosaicMode
+{
+    BG_MOSAIC_SET,
+    BG_MOSAIC_SET_H,
+    BG_MOSAIC_INC_H,
+    BG_MOSAIC_DEC_H,
+    BG_MOSAIC_SET_V,
+    BG_MOSAIC_INC_V,
+    BG_MOSAIC_DEC_V,
+};
+
 enum BgTileAllocMode
 {
     BG_TILE_FIND_FREE_SPACE,