Add definitions for flooring & walls, minor m_card work

include/m_card.h

@@ -11,9 +11,34 @@
 extern "C" {
 #endif
 
+enum {
+    mCD_ERROR_NOT_ENABLED, // N [not enabled?]
+    mCD_ERROR_AREA,        // A [area?]
+    mCD_ERROR_WRITE,       // W [write]
+    mCD_ERROR_READ,        // R [read?]
+    mCD_ERROR_CHECKSUM,    // C [checksum]
+    mCD_ERROR_OUTDATED,    // O [outdated]
+    mCD_ERROR_CREATE,      // c [create]
+
+    mCD_ERROR_NUM
+};
+
+enum {
+    mCD_SPACE_BG_GET_SLOT,
+    mCD_SPACE_BG_MAIN,
+
+    mCD_SPACE_BG_NUM
+};
+
+#define mCD_RESULT_ERROR -1
+#define mCD_RESULT_BUSY 0
+#define mCD_RESULT_SUCCESS 1
+
+#define mCD_MEMCARD_SECTORSIZE 0x2000
+
 typedef struct {
-  mLd_land_info_c land;
-  PersonalID_c pid[PLAYER_NUM];
+    mLd_land_info_c land;
+    PersonalID_c pid[PLAYER_NUM];
 } mCD_persistent_data_c;
 
 extern s32 mCD_GetThisLandSlotNo_code(int* player_no, s32* slot_card_results);
@@ -28,6 +53,7 @@ extern void mCD_toNextLand();
 
 extern int mCD_EraseBrokenLand_bg(void*);
 extern int mCD_card_format_bg(u8);
+
 #ifdef __cplusplus
 }
 #endif