sound/soc/tegra/tegra_cif.h

root/sound/soc/tegra/tegra_cif.h
/* SPDX-License-Identifier: GPL-2.0-only
 * SPDX-FileCopyrightText: Copyright (c) 2020-2025 NVIDIA CORPORATION. All rights reserved.
 *
 * tegra_cif.h - TEGRA Audio CIF Programming
 *
 */

#ifndef __TEGRA_CIF_H__
#define __TEGRA_CIF_H__

#include <linux/regmap.h>

#define TEGRA_ACIF_CTRL_FIFO_TH_SHIFT           24
#define TEGRA_ACIF_CTRL_AUDIO_CH_SHIFT          20
#define TEGRA_ACIF_CTRL_CLIENT_CH_SHIFT         16
#define TEGRA_ACIF_CTRL_AUDIO_BITS_SHIFT        12
#define TEGRA_ACIF_CTRL_CLIENT_BITS_SHIFT       8
#define TEGRA_ACIF_CTRL_EXPAND_SHIFT            6
#define TEGRA_ACIF_CTRL_STEREO_CONV_SHIFT       4
#define TEGRA_ACIF_CTRL_REPLICATE_SHIFT         3
#define TEGRA_ACIF_CTRL_TRUNCATE_SHIFT          1
#define TEGRA_ACIF_CTRL_MONO_CONV_SHIFT         0

#define TEGRA264_ACIF_CTRL_AUDIO_BITS_SHIFT     11
#define TEGRA264_ACIF_CTRL_CLIENT_CH_SHIFT      14
#define TEGRA264_ACIF_CTRL_AUDIO_CH_SHIFT       19

/* AUDIO/CLIENT_BITS values */
#define TEGRA_ACIF_BITS_8                       1
#define TEGRA_ACIF_BITS_16                      3
#define TEGRA_ACIF_BITS_24                      5
#define TEGRA_ACIF_BITS_32                      7

#define TEGRA_ACIF_UPDATE_MASK                  0x3ffffffb

struct tegra_cif_conf {
        unsigned int threshold;
        unsigned int audio_ch;
        unsigned int client_ch;
        unsigned int audio_bits;
        unsigned int client_bits;
        unsigned int expand;
        unsigned int stereo_conv;
        unsigned int replicate;
        unsigned int truncate;
        unsigned int mono_conv;
};

static inline void tegra_set_cif(struct regmap *regmap, unsigned int reg,
                                 struct tegra_cif_conf *conf)
{
        unsigned int value;

        value = (conf->threshold << TEGRA_ACIF_CTRL_FIFO_TH_SHIFT) |
                ((conf->audio_ch - 1) << TEGRA_ACIF_CTRL_AUDIO_CH_SHIFT) |
                ((conf->client_ch - 1) << TEGRA_ACIF_CTRL_CLIENT_CH_SHIFT) |
                (conf->audio_bits << TEGRA_ACIF_CTRL_AUDIO_BITS_SHIFT) |
                (conf->client_bits << TEGRA_ACIF_CTRL_CLIENT_BITS_SHIFT) |
                (conf->expand << TEGRA_ACIF_CTRL_EXPAND_SHIFT) |
                (conf->stereo_conv << TEGRA_ACIF_CTRL_STEREO_CONV_SHIFT) |
                (conf->replicate << TEGRA_ACIF_CTRL_REPLICATE_SHIFT) |
                (conf->truncate << TEGRA_ACIF_CTRL_TRUNCATE_SHIFT) |
                (conf->mono_conv << TEGRA_ACIF_CTRL_MONO_CONV_SHIFT);

        regmap_update_bits(regmap, reg, TEGRA_ACIF_UPDATE_MASK, value);
}

static inline void tegra264_set_cif(struct regmap *regmap, unsigned int reg,
                                    struct tegra_cif_conf *conf)
{
        unsigned int value;

        value = (conf->threshold << TEGRA_ACIF_CTRL_FIFO_TH_SHIFT) |
                ((conf->audio_ch - 1) << TEGRA264_ACIF_CTRL_AUDIO_CH_SHIFT) |
                ((conf->client_ch - 1) << TEGRA264_ACIF_CTRL_CLIENT_CH_SHIFT) |
                (conf->audio_bits << TEGRA264_ACIF_CTRL_AUDIO_BITS_SHIFT) |
                (conf->client_bits << TEGRA_ACIF_CTRL_CLIENT_BITS_SHIFT) |
                (conf->expand << TEGRA_ACIF_CTRL_EXPAND_SHIFT) |
                (conf->stereo_conv << TEGRA_ACIF_CTRL_STEREO_CONV_SHIFT) |
                (conf->replicate << TEGRA_ACIF_CTRL_REPLICATE_SHIFT) |
                (conf->truncate << TEGRA_ACIF_CTRL_TRUNCATE_SHIFT) |
                (conf->mono_conv << TEGRA_ACIF_CTRL_MONO_CONV_SHIFT);

        regmap_update_bits(regmap, reg, TEGRA_ACIF_UPDATE_MASK, value);
}

#endif
Linux
