/* 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