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