new file mode 100644
@@ -0,0 +1,73 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) [2022-2025] Renesas Electronics Corporation and/or its affiliates.
+ */
+
+#ifndef RA6W_STATUS_H
+#define RA6W_STATUS_H
+
+#include <linux/types.h>
+#include <linux/mutex.h>
+
+enum ra6w_status_code {
+ RA6W_STATUS_CODE_SUCCESS = 0,
+ RA6W_STATUS_CODE_FAIL,
+ RA6W_STATUS_CODE_EMPTY,
+ RA6W_STATUS_CODE_FULL,
+ RA6W_STATUS_CODE_INVALID_PARAM,
+ RA6W_STATUS_CODE_NOT_FOUND,
+ RA6W_STATUS_CODE_NO_MORE,
+ RA6W_STATUS_CODE_NOT_IN_USE,
+ RA6W_STATUS_CODE_BUSY,
+ RA6W_STATUS_CODE_IN_PROGRESS,
+ RA6W_STATUS_CODE_MEMORY_FAIL,
+ RA6W_STATUS_CODE_NOT_SUPPORT,
+ RA6W_STATUS_CODE_EXIST,
+
+ RA6W_STATUS_CODE_MAX
+};
+
+enum ra6w_status_byte {
+ RA6W_STATUS_BYTE_STATUS,
+ RA6W_STATUS_BYTE_TX_AVAIL_CNT,
+ RA6W_STATUS_BYTE_TX_POWER_AVAIL_CNT,
+ RA6W_STATUS_BYTE_RESERVED,
+
+ RA6W_STATUS_BYTE_MAX
+};
+
+enum ra6w_status_byte_bits {
+ RA6W_STATUS_BIT_RX_EMPTY,
+ RA6W_STATUS_BIT_TX_AC_FULL,
+ RA6W_STATUS_BIT_TX_POWER_FULL,
+
+ RA6W_STATUS_BITS_MAX
+};
+
+struct ra6w_status {
+ u8 value[RA6W_STATUS_BYTE_MAX];
+ spinlock_t lock;
+};
+
+struct ra6w_status_ext_hdr {
+ u32 status : 32;
+};
+
+struct ra6w_status_buf {
+ u8 cmd;
+ u8 ext_len;
+ __le16 data_len;
+ struct ra6w_status_ext_hdr ext_hdr;
+};
+
+#define RA6W_STATUS_EXT_LEN (sizeof(struct ra6w_status_ext_hdr))
+
+void ra6w_status_init(struct ra6w_status *status);
+void ra6w_status_set(struct ra6w_status *status, u32 value);
+u8 ra6w_status_rx_get(struct ra6w_status *status);
+u8 ra6w_status_tx_get(struct ra6w_status *status, u8 ac);
+u8 ra6w_status_tx_avail_cnt_get(struct ra6w_status *status, u8 ac);
+int ra6w_status_err_code_to_errno(u8 err);
+void ra6w_status_event_post(struct ra6w_status *status, const struct sk_buff *skb);
+
+#endif /* RA6W_STATUS_H */