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-rw-r--r--sound/soc/tegra/tegra210_peq.h56
1 files changed, 56 insertions, 0 deletions
diff --git a/sound/soc/tegra/tegra210_peq.h b/sound/soc/tegra/tegra210_peq.h
new file mode 100644
index 000000000..6d3de4ff0
--- /dev/null
+++ b/sound/soc/tegra/tegra210_peq.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * tegra210_peq.h - Definitions for Tegra210 PEQ driver
+ *
+ * Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved.
+ *
+ */
+
+#ifndef __TEGRA210_PEQ_H__
+#define __TEGRA210_PEQ_H__
+
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <sound/soc.h>
+
+/* Register offsets from PEQ base */
+#define TEGRA210_PEQ_SOFT_RESET 0x0
+#define TEGRA210_PEQ_CG 0x4
+#define TEGRA210_PEQ_STATUS 0x8
+#define TEGRA210_PEQ_CFG 0xc
+#define TEGRA210_PEQ_CFG_RAM_CTRL 0x10
+#define TEGRA210_PEQ_CFG_RAM_DATA 0x14
+#define TEGRA210_PEQ_CFG_RAM_SHIFT_CTRL 0x18
+#define TEGRA210_PEQ_CFG_RAM_SHIFT_DATA 0x1c
+
+/* Fields in TEGRA210_PEQ_CFG */
+#define TEGRA210_PEQ_CFG_BIQUAD_STAGES_SHIFT 2
+#define TEGRA210_PEQ_CFG_BIQUAD_STAGES_MASK (0xf << TEGRA210_PEQ_CFG_BIQUAD_STAGES_SHIFT)
+
+#define TEGRA210_PEQ_CFG_MODE_SHIFT 0
+#define TEGRA210_PEQ_CFG_MODE_MASK (0x1 << TEGRA210_PEQ_CFG_MODE_SHIFT)
+
+#define TEGRA210_PEQ_RAM_CTRL_RW_READ 0
+#define TEGRA210_PEQ_RAM_CTRL_RW_WRITE (1 << 14)
+#define TEGRA210_PEQ_RAM_CTRL_ADDR_INIT_EN (1 << 13)
+#define TEGRA210_PEQ_RAM_CTRL_SEQ_ACCESS_EN (1 << 12)
+#define TEGRA210_PEQ_RAM_CTRL_RAM_ADDR_MASK 0x1ff
+
+/* PEQ register definition ends here */
+#define TEGRA210_PEQ_MAX_BIQUAD_STAGES 12
+
+#define TEGRA210_PEQ_MAX_CHANNELS 8
+
+#define TEGRA210_PEQ_BIQUAD_INIT_STAGE 5
+
+#define TEGRA210_PEQ_GAIN_PARAM_SIZE_PER_CH (2 + TEGRA210_PEQ_MAX_BIQUAD_STAGES * 5)
+#define TEGRA210_PEQ_SHIFT_PARAM_SIZE_PER_CH (2 + TEGRA210_PEQ_MAX_BIQUAD_STAGES)
+
+int tegra210_peq_regmap_init(struct platform_device *pdev);
+int tegra210_peq_component_init(struct snd_soc_component *cmpnt);
+void tegra210_peq_restore(struct regmap *regmap, u32 *biquad_gains,
+ u32 *biquad_shifts);
+void tegra210_peq_save(struct regmap *regmap, u32 *biquad_gains,
+ u32 *biquad_shifts);
+
+#endif