| 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
|---|---|
| 2 | /* |
| 3 | * tegra_cif.h - TEGRA Audio CIF Programming |
| 4 | * |
| 5 | * Copyright (c) 2020 NVIDIA CORPORATION. All rights reserved. |
| 6 | * |
| 7 | */ |
| 8 | |
| 9 | #ifndef __TEGRA_CIF_H__ |
| 10 | #define __TEGRA_CIF_H__ |
| 11 | |
| 12 | #include <linux/regmap.h> |
| 13 | |
| 14 | #define TEGRA_ACIF_CTRL_FIFO_TH_SHIFT 24 |
| 15 | #define TEGRA_ACIF_CTRL_AUDIO_CH_SHIFT 20 |
| 16 | #define TEGRA_ACIF_CTRL_CLIENT_CH_SHIFT 16 |
| 17 | #define TEGRA_ACIF_CTRL_AUDIO_BITS_SHIFT 12 |
| 18 | #define TEGRA_ACIF_CTRL_CLIENT_BITS_SHIFT 8 |
| 19 | #define TEGRA_ACIF_CTRL_EXPAND_SHIFT 6 |
| 20 | #define TEGRA_ACIF_CTRL_STEREO_CONV_SHIFT 4 |
| 21 | #define TEGRA_ACIF_CTRL_REPLICATE_SHIFT 3 |
| 22 | #define TEGRA_ACIF_CTRL_TRUNCATE_SHIFT 1 |
| 23 | #define TEGRA_ACIF_CTRL_MONO_CONV_SHIFT 0 |
| 24 | |
| 25 | /* AUDIO/CLIENT_BITS values */ |
| 26 | #define TEGRA_ACIF_BITS_8 1 |
| 27 | #define TEGRA_ACIF_BITS_16 3 |
| 28 | #define TEGRA_ACIF_BITS_24 5 |
| 29 | #define TEGRA_ACIF_BITS_32 7 |
| 30 | |
| 31 | #define TEGRA_ACIF_UPDATE_MASK 0x3ffffffb |
| 32 | |
| 33 | struct tegra_cif_conf { |
| 34 | unsigned int threshold; |
| 35 | unsigned int audio_ch; |
| 36 | unsigned int client_ch; |
| 37 | unsigned int audio_bits; |
| 38 | unsigned int client_bits; |
| 39 | unsigned int expand; |
| 40 | unsigned int stereo_conv; |
| 41 | unsigned int replicate; |
| 42 | unsigned int truncate; |
| 43 | unsigned int mono_conv; |
| 44 | }; |
| 45 | |
| 46 | static inline void tegra_set_cif(struct regmap *regmap, unsigned int reg, |
| 47 | struct tegra_cif_conf *conf) |
| 48 | { |
| 49 | unsigned int value; |
| 50 | |
| 51 | value = (conf->threshold << TEGRA_ACIF_CTRL_FIFO_TH_SHIFT) | |
| 52 | ((conf->audio_ch - 1) << TEGRA_ACIF_CTRL_AUDIO_CH_SHIFT) | |
| 53 | ((conf->client_ch - 1) << TEGRA_ACIF_CTRL_CLIENT_CH_SHIFT) | |
| 54 | (conf->audio_bits << TEGRA_ACIF_CTRL_AUDIO_BITS_SHIFT) | |
| 55 | (conf->client_bits << TEGRA_ACIF_CTRL_CLIENT_BITS_SHIFT) | |
| 56 | (conf->expand << TEGRA_ACIF_CTRL_EXPAND_SHIFT) | |
| 57 | (conf->stereo_conv << TEGRA_ACIF_CTRL_STEREO_CONV_SHIFT) | |
| 58 | (conf->replicate << TEGRA_ACIF_CTRL_REPLICATE_SHIFT) | |
| 59 | (conf->truncate << TEGRA_ACIF_CTRL_TRUNCATE_SHIFT) | |
| 60 | (conf->mono_conv << TEGRA_ACIF_CTRL_MONO_CONV_SHIFT); |
| 61 | |
| 62 | regmap_update_bits(map: regmap, reg, TEGRA_ACIF_UPDATE_MASK, val: value); |
| 63 | } |
| 64 | |
| 65 | #endif |
| 66 |