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-rw-r--r--sound/soc/tegra/tegra210_dmic.h82
1 files changed, 82 insertions, 0 deletions
diff --git a/sound/soc/tegra/tegra210_dmic.h b/sound/soc/tegra/tegra210_dmic.h
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index 000000000..6418c223b
--- /dev/null
+++ b/sound/soc/tegra/tegra210_dmic.h
@@ -0,0 +1,82 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * tegra210_dmic.h - Definitions for Tegra210 DMIC driver
+ *
+ * Copyright (c) 2020 NVIDIA CORPORATION. All rights reserved.
+ *
+ */
+
+#ifndef __TEGRA210_DMIC_H__
+#define __TEGRA210_DMIC_H__
+
+/* Register offsets from DMIC BASE */
+#define TEGRA210_DMIC_TX_STATUS 0x0c
+#define TEGRA210_DMIC_TX_INT_STATUS 0x10
+#define TEGRA210_DMIC_TX_INT_MASK 0x14
+#define TEGRA210_DMIC_TX_INT_SET 0x18
+#define TEGRA210_DMIC_TX_INT_CLEAR 0x1c
+#define TEGRA210_DMIC_TX_CIF_CTRL 0x20
+#define TEGRA210_DMIC_ENABLE 0x40
+#define TEGRA210_DMIC_SOFT_RESET 0x44
+#define TEGRA210_DMIC_CG 0x48
+#define TEGRA210_DMIC_STATUS 0x4c
+#define TEGRA210_DMIC_INT_STATUS 0x50
+#define TEGRA210_DMIC_CTRL 0x64
+#define TEGRA210_DMIC_DBG_CTRL 0x70
+#define TEGRA210_DMIC_DCR_BIQUAD_0_COEF_4 0x88
+#define TEGRA210_DMIC_LP_FILTER_GAIN 0x8c
+#define TEGRA210_DMIC_LP_BIQUAD_0_COEF_0 0x90
+#define TEGRA210_DMIC_LP_BIQUAD_0_COEF_1 0x94
+#define TEGRA210_DMIC_LP_BIQUAD_0_COEF_2 0x98
+#define TEGRA210_DMIC_LP_BIQUAD_0_COEF_3 0x9c
+#define TEGRA210_DMIC_LP_BIQUAD_0_COEF_4 0xa0
+#define TEGRA210_DMIC_LP_BIQUAD_1_COEF_0 0xa4
+#define TEGRA210_DMIC_LP_BIQUAD_1_COEF_1 0xa8
+#define TEGRA210_DMIC_LP_BIQUAD_1_COEF_2 0xac
+#define TEGRA210_DMIC_LP_BIQUAD_1_COEF_3 0xb0
+#define TEGRA210_DMIC_LP_BIQUAD_1_COEF_4 0xb4
+
+/* Fields in TEGRA210_DMIC_CTRL */
+#define CH_SEL_SHIFT 8
+#define TEGRA210_DMIC_CTRL_CHANNEL_SELECT_MASK (0x3 << CH_SEL_SHIFT)
+#define LRSEL_POL_SHIFT 4
+#define TEGRA210_DMIC_CTRL_LRSEL_POLARITY_MASK (0x1 << LRSEL_POL_SHIFT)
+#define OSR_SHIFT 0
+#define TEGRA210_DMIC_CTRL_OSR_MASK (0x3 << OSR_SHIFT)
+
+#define DMIC_OSR_FACTOR 64
+
+#define DEFAULT_GAIN_Q23 0x800000
+
+/* Max boost gain factor used for mixer control */
+#define MAX_BOOST_GAIN 25599
+
+enum tegra_dmic_ch_select {
+ DMIC_CH_SELECT_LEFT,
+ DMIC_CH_SELECT_RIGHT,
+ DMIC_CH_SELECT_STEREO,
+};
+
+enum tegra_dmic_osr {
+ DMIC_OSR_64,
+ DMIC_OSR_128,
+ DMIC_OSR_256,
+};
+
+enum tegra_dmic_lrsel {
+ DMIC_LRSEL_LEFT,
+ DMIC_LRSEL_RIGHT,
+};
+
+struct tegra210_dmic {
+ struct clk *clk_dmic;
+ struct regmap *regmap;
+ unsigned int mono_to_stereo;
+ unsigned int stereo_to_mono;
+ unsigned int boost_gain;
+ unsigned int ch_select;
+ unsigned int osr_val;
+ unsigned int lrsel;
+};
+
+#endif