linux/sound/soc/tegra/tegra210_peq.c

// SPDX-License-Identifier: GPL-2.0-only
//
// tegra210_peq.c - Tegra210 PEQ driver
//
// Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved.

#include <linux/clk.h>
#include <linux/device.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>

#include "tegra210_ope.h"
#include "tegra210_peq.h"

static const struct reg_default tegra210_peq_reg_defaults[] = …;

static const u32 biquad_init_gains[TEGRA210_PEQ_GAIN_PARAM_SIZE_PER_CH] = …;

static const u32 biquad_init_shifts[TEGRA210_PEQ_SHIFT_PARAM_SIZE_PER_CH] = …;

static s32 biquad_coeff_buffer[TEGRA210_PEQ_GAIN_PARAM_SIZE_PER_CH];

static void tegra210_peq_read_ram(struct regmap *regmap, unsigned int reg_ctrl,
				  unsigned int reg_data, unsigned int ram_offset,
				  unsigned int *data, size_t size)
{ … }

static void tegra210_peq_write_ram(struct regmap *regmap, unsigned int reg_ctrl,
				   unsigned int reg_data, unsigned int ram_offset,
				   unsigned int *data, size_t size)
{ … }

static int tegra210_peq_get(struct snd_kcontrol *kcontrol,
			    struct snd_ctl_elem_value *ucontrol)
{ … }

static int tegra210_peq_put(struct snd_kcontrol *kcontrol,
			    struct snd_ctl_elem_value *ucontrol)
{ … }

static int tegra210_peq_ram_get(struct snd_kcontrol *kcontrol,
				struct snd_ctl_elem_value *ucontrol)
{ … }

static int tegra210_peq_ram_put(struct snd_kcontrol *kcontrol,
				     struct snd_ctl_elem_value *ucontrol)
{ … }

static int tegra210_peq_param_info(struct snd_kcontrol *kcontrol,
				   struct snd_ctl_elem_info *uinfo)
{ … }

#define TEGRA210_PEQ_GAIN_PARAMS_CTRL(chan) …

#define TEGRA210_PEQ_SHIFT_PARAMS_CTRL(chan) …

static const struct snd_kcontrol_new tegra210_peq_controls[] = …;

static bool tegra210_peq_wr_reg(struct device *dev, unsigned int reg)
{ … }

static bool tegra210_peq_rd_reg(struct device *dev, unsigned int reg)
{ … }

static bool tegra210_peq_volatile_reg(struct device *dev, unsigned int reg)
{ … }

static bool tegra210_peq_precious_reg(struct device *dev, unsigned int reg)
{ … }

static const struct regmap_config tegra210_peq_regmap_config = …;

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)
{ … }

int tegra210_peq_component_init(struct snd_soc_component *cmpnt)
{ … }

int tegra210_peq_regmap_init(struct platform_device *pdev)
{ … }