diff -drupN a/drivers/char/sunxi-scr/sunxi-scr-user.h b/drivers/char/sunxi-scr/sunxi-scr-user.h
--- a/drivers/char/sunxi-scr/sunxi-scr-user.h	1970-01-01 03:00:00.000000000 +0300
+++ b/drivers/char/sunxi-scr/sunxi-scr-user.h	2022-06-12 05:28:14.000000000 +0300
@@ -0,0 +1,87 @@
+/*
+ * drivers/char/sunxi-scr/sunxi-scr-user.h
+ *
+ * Copyright (C) 2016 Allwinner.
+ * fuzhaoke <fuzhaoke@allwinnertech.com>
+ *
+ * common data structure or macro used both kernel & application
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ */
+
+#ifndef __SUNXI_SCR_USER_H__
+#define __SUNXI_SCR_USER_H__
+
+#define MAX_ATR_LEN			33
+
+/* ioctrol command */
+#define SCR_IOC_MAGIC		'c'
+#define SCR_IOCGSTATUS		_IOR(SCR_IOC_MAGIC, 0, uint32_t)
+#define SCR_IOCRESET		_IO(SCR_IOC_MAGIC, 1)
+#define SCR_IOCGATR		_IOR(SCR_IOC_MAGIC, 2, struct scr_atr)
+#define SCR_IOCGPARA		_IOR(SCR_IOC_MAGIC, 3, struct scr_card_para)
+#define SCR_IOCSPARA		_IOW(SCR_IOC_MAGIC, 4, struct scr_card_para)
+#define SCR_IOCGATRPARA		_IOW(SCR_IOC_MAGIC, 5, struct smc_atr_para)
+#define SCR_IOCGPPSPARA		_IOW(SCR_IOC_MAGIC, 6, struct smc_pps_para)
+#define SCR_IOCWRDATA		_IOWR(SCR_IOC_MAGIC, 7, struct scr_wr_data)
+
+enum scr_card_sta {
+	SCR_CARD_OUT = 0,
+	SCR_CARD_IN,
+};
+
+/* ATR data */
+struct scr_atr {
+	unsigned char atr_len;
+	unsigned char atr_data[MAX_ATR_LEN];
+};
+
+/* current card parameters & status */
+struct scr_card_para {
+	uint16_t f;
+	uint16_t d;
+	uint16_t freq;
+	uint8_t recv_no_parity;
+	uint8_t protocol_type;
+};
+
+/* parse ATR data */
+struct smc_atr_para {
+	uint8_t TS;
+
+	uint8_t TK[15];
+	uint8_t TK_NUM;
+
+	uint8_t T;    /* Protocol */
+	uint8_t FMAX; /* unit: MHz */
+	uint32_t F;
+	uint32_t D;
+	uint32_t I;   /* Max Cunrrent for Program, in mA */
+	uint32_t P;   /* Pogram Voltage */
+	uint32_t N;   /* Extra Guard Time, in ETUs */
+};
+
+/* parse ATR data for PPS */
+struct smc_pps_para {
+	uint8_t ppss;
+	uint8_t pps0;
+	uint8_t pps1;
+	uint8_t pps2;
+	uint8_t pps3;
+	uint8_t pck;
+};
+
+/* write cmd and read data immediately */
+struct scr_wr_data {
+	uint8_t *cmd_buf;
+	uint32_t cmd_len;
+	uint8_t *rtn_data;
+	uint32_t *rtn_len;
+	uint8_t *psw1;
+	uint8_t *psw2;
+};
+
+#endif