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+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * rl6347a.h - RL6347A class device shared support
+ *
+ * Copyright 2015 Realtek Semiconductor Corp.
+ *
+ * Author: Oder Chiou <oder_chiou@realtek.com>
+ */
+#ifndef __RL6347A_H__
+#define __RL6347A_H__
+
+#include <sound/hda_verbs.h>
+
+#define VERB_CMD(V, N, D) ((N << 20) | (V << 8) | D)
+
+#define RL6347A_VENDOR_REGISTERS 0x20
+
+#define RL6347A_COEF_INDEX\
+ VERB_CMD(AC_VERB_SET_COEF_INDEX, RL6347A_VENDOR_REGISTERS, 0)
+#define RL6347A_PROC_COEF\
+ VERB_CMD(AC_VERB_SET_PROC_COEF, RL6347A_VENDOR_REGISTERS, 0)
+
+struct rl6347a_priv {
+ struct reg_default *index_cache;
+ int index_cache_size;
+};
+
+int rl6347a_hw_write(void *context, unsigned int reg, unsigned int value);
+int rl6347a_hw_read(void *context, unsigned int reg, unsigned int *value);
+
+#endif /* __RL6347A_H__ */