--- /dev/null
+/******************************************************************************
+ *
+ * Copyright(c) 2015 - 2017 Realtek Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ *****************************************************************************/
+#ifndef _RTW_SDIO_H_
+#define _RTW_SDIO_H_
+
+#include <drv_types.h> /* struct dvobj_priv and etc. */
+
+u8 rtw_sdio_read_cmd52(struct dvobj_priv *, u32 addr, void *buf, size_t len);
+u8 rtw_sdio_read_cmd53(struct dvobj_priv *, u32 addr, void *buf, size_t len);
+u8 rtw_sdio_write_cmd52(struct dvobj_priv *, u32 addr, void *buf, size_t len);
+u8 rtw_sdio_write_cmd53(struct dvobj_priv *, u32 addr, void *buf, size_t len);
+u8 rtw_sdio_f0_read(struct dvobj_priv *, u32 addr, void *buf, size_t len);
+
+#endif /* _RTW_SDIO_H_ */