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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* tegra_cif.h - TEGRA Audio CIF Programming
*
* Copyright (c) 2020 NVIDIA CORPORATION. All rights reserved.
*
*/
#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
/* 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);
}
#endif
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