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1// SPDX-License-Identifier: GPL-2.02//3// MediaTek ALSA SoC Audio DAI HW Gain Control4//5// Copyright (c) 2022 MediaTek Inc.6// Author: Jiaxin Yu <jiaxin.yu@mediatek.com>7 8#include <linux/regmap.h>9#include "mt8186-afe-common.h"10#include "mt8186-interconnection.h"11 12#define HW_GAIN_1_EN_W_NAME "HW GAIN 1 Enable"13#define HW_GAIN_2_EN_W_NAME "HW GAIN 2 Enable"14 15/* dai component */16static const struct snd_kcontrol_new mtk_hw_gain1_in_ch1_mix[] = {17 SOC_DAPM_SINGLE_AUTODISABLE("CONNSYS_I2S_CH1 Switch", AFE_CONN13_1,18 I_CONNSYS_I2S_CH1, 1, 0),19};20 21static const struct snd_kcontrol_new mtk_hw_gain1_in_ch2_mix[] = {22 SOC_DAPM_SINGLE_AUTODISABLE("CONNSYS_I2S_CH2 Switch", AFE_CONN14_1,23 I_CONNSYS_I2S_CH2, 1, 0),24};25 26static const struct snd_kcontrol_new mtk_hw_gain2_in_ch1_mix[] = {27 SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1 Switch", AFE_CONN15,28 I_ADDA_UL_CH1, 1, 0),29};30 31static const struct snd_kcontrol_new mtk_hw_gain2_in_ch2_mix[] = {32 SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2 Switch", AFE_CONN16,33 I_ADDA_UL_CH2, 1, 0),34};35 36static int mtk_hw_gain_event(struct snd_soc_dapm_widget *w,37 struct snd_kcontrol *kcontrol,38 int event)39{40 struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);41 struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt);42 unsigned int gain_cur;43 unsigned int gain_con1;44 45 dev_dbg(cmpnt->dev, "%s(), name %s, event 0x%x\n",46 __func__, w->name, event);47 48 switch (event) {49 case SND_SOC_DAPM_PRE_PMU:50 if (snd_soc_dapm_widget_name_cmp(w, HW_GAIN_1_EN_W_NAME) == 0) {51 gain_cur = AFE_GAIN1_CUR;52 gain_con1 = AFE_GAIN1_CON1;53 } else {54 gain_cur = AFE_GAIN2_CUR;55 gain_con1 = AFE_GAIN2_CON1;56 }57 58 /* let hw gain ramp up, set cur gain to 0 */59 regmap_update_bits(afe->regmap, gain_cur, AFE_GAIN1_CUR_MASK_SFT, 0);60 61 /* set target gain to 0 */62 regmap_update_bits(afe->regmap, gain_con1, GAIN1_TARGET_MASK_SFT, 0);63 break;64 default:65 break;66 }67 68 return 0;69}70 71static const struct snd_soc_dapm_widget mtk_dai_hw_gain_widgets[] = {72 /* inter-connections */73 SND_SOC_DAPM_MIXER("HW_GAIN1_IN_CH1", SND_SOC_NOPM, 0, 0,74 mtk_hw_gain1_in_ch1_mix,75 ARRAY_SIZE(mtk_hw_gain1_in_ch1_mix)),76 SND_SOC_DAPM_MIXER("HW_GAIN1_IN_CH2", SND_SOC_NOPM, 0, 0,77 mtk_hw_gain1_in_ch2_mix,78 ARRAY_SIZE(mtk_hw_gain1_in_ch2_mix)),79 SND_SOC_DAPM_MIXER("HW_GAIN2_IN_CH1", SND_SOC_NOPM, 0, 0,80 mtk_hw_gain2_in_ch1_mix,81 ARRAY_SIZE(mtk_hw_gain2_in_ch1_mix)),82 SND_SOC_DAPM_MIXER("HW_GAIN2_IN_CH2", SND_SOC_NOPM, 0, 0,83 mtk_hw_gain2_in_ch2_mix,84 ARRAY_SIZE(mtk_hw_gain2_in_ch2_mix)),85 86 SND_SOC_DAPM_SUPPLY(HW_GAIN_1_EN_W_NAME,87 AFE_GAIN1_CON0, GAIN1_ON_SFT, 0,88 mtk_hw_gain_event,89 SND_SOC_DAPM_PRE_PMU),90 91 SND_SOC_DAPM_SUPPLY(HW_GAIN_2_EN_W_NAME,92 AFE_GAIN2_CON0, GAIN2_ON_SFT, 0,93 mtk_hw_gain_event,94 SND_SOC_DAPM_PRE_PMU),95 96 SND_SOC_DAPM_INPUT("HW Gain 1 Out Endpoint"),97 SND_SOC_DAPM_INPUT("HW Gain 2 Out Endpoint"),98 SND_SOC_DAPM_OUTPUT("HW Gain 1 In Endpoint"),99};100 101static const struct snd_soc_dapm_route mtk_dai_hw_gain_routes[] = {102 {"HW Gain 1 In", NULL, "HW_GAIN1_IN_CH1"},103 {"HW Gain 1 In", NULL, "HW_GAIN1_IN_CH2"},104 {"HW Gain 2 In", NULL, "HW_GAIN2_IN_CH1"},105 {"HW Gain 2 In", NULL, "HW_GAIN2_IN_CH2"},106 107 {"HW Gain 1 In", NULL, HW_GAIN_1_EN_W_NAME},108 {"HW Gain 1 Out", NULL, HW_GAIN_1_EN_W_NAME},109 {"HW Gain 2 In", NULL, HW_GAIN_2_EN_W_NAME},110 {"HW Gain 2 Out", NULL, HW_GAIN_2_EN_W_NAME},111 112 {"HW Gain 1 In Endpoint", NULL, "HW Gain 1 In"},113 {"HW Gain 1 Out", NULL, "HW Gain 1 Out Endpoint"},114 {"HW Gain 2 Out", NULL, "HW Gain 2 Out Endpoint"},115};116 117static const struct snd_kcontrol_new mtk_hw_gain_controls[] = {118 SOC_SINGLE("HW Gain 1 Volume", AFE_GAIN1_CON1,119 GAIN1_TARGET_SFT, GAIN1_TARGET_MASK, 0),120 SOC_SINGLE("HW Gain 2 Volume", AFE_GAIN2_CON1,121 GAIN2_TARGET_SFT, GAIN2_TARGET_MASK, 0),122};123 124/* dai ops */125static int mtk_dai_gain_hw_params(struct snd_pcm_substream *substream,126 struct snd_pcm_hw_params *params,127 struct snd_soc_dai *dai)128{129 struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);130 unsigned int rate = params_rate(params);131 unsigned int rate_reg = mt8186_rate_transform(afe->dev, rate, dai->id);132 133 dev_dbg(afe->dev, "%s(), id %d, stream %d, rate %d\n",134 __func__, dai->id, substream->stream, rate);135 136 /* rate */137 regmap_update_bits(afe->regmap,138 dai->id == MT8186_DAI_HW_GAIN_1 ?139 AFE_GAIN1_CON0 : AFE_GAIN2_CON0,140 GAIN1_MODE_MASK_SFT,141 rate_reg << GAIN1_MODE_SFT);142 143 /* sample per step */144 regmap_update_bits(afe->regmap,145 dai->id == MT8186_DAI_HW_GAIN_1 ?146 AFE_GAIN1_CON0 : AFE_GAIN2_CON0,147 GAIN1_SAMPLE_PER_STEP_MASK_SFT,148 (dai->id == MT8186_DAI_HW_GAIN_1 ? 0x40 : 0x0) <<149 GAIN1_SAMPLE_PER_STEP_SFT);150 151 return 0;152}153 154static const struct snd_soc_dai_ops mtk_dai_gain_ops = {155 .hw_params = mtk_dai_gain_hw_params,156};157 158/* dai driver */159#define MTK_HW_GAIN_RATES (SNDRV_PCM_RATE_8000_48000 |\160 SNDRV_PCM_RATE_88200 |\161 SNDRV_PCM_RATE_96000 |\162 SNDRV_PCM_RATE_176400 |\163 SNDRV_PCM_RATE_192000)164 165#define MTK_HW_GAIN_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\166 SNDRV_PCM_FMTBIT_S24_LE |\167 SNDRV_PCM_FMTBIT_S32_LE)168 169static struct snd_soc_dai_driver mtk_dai_gain_driver[] = {170 {171 .name = "HW Gain 1",172 .id = MT8186_DAI_HW_GAIN_1,173 .playback = {174 .stream_name = "HW Gain 1 In",175 .channels_min = 1,176 .channels_max = 2,177 .rates = MTK_HW_GAIN_RATES,178 .formats = MTK_HW_GAIN_FORMATS,179 },180 .capture = {181 .stream_name = "HW Gain 1 Out",182 .channels_min = 1,183 .channels_max = 2,184 .rates = MTK_HW_GAIN_RATES,185 .formats = MTK_HW_GAIN_FORMATS,186 },187 .ops = &mtk_dai_gain_ops,188 .symmetric_rate = 1,189 .symmetric_channels = 1,190 .symmetric_sample_bits = 1,191 },192 {193 .name = "HW Gain 2",194 .id = MT8186_DAI_HW_GAIN_2,195 .playback = {196 .stream_name = "HW Gain 2 In",197 .channels_min = 1,198 .channels_max = 2,199 .rates = MTK_HW_GAIN_RATES,200 .formats = MTK_HW_GAIN_FORMATS,201 },202 .capture = {203 .stream_name = "HW Gain 2 Out",204 .channels_min = 1,205 .channels_max = 2,206 .rates = MTK_HW_GAIN_RATES,207 .formats = MTK_HW_GAIN_FORMATS,208 },209 .ops = &mtk_dai_gain_ops,210 .symmetric_rate = 1,211 .symmetric_channels = 1,212 .symmetric_sample_bits = 1,213 },214};215 216int mt8186_dai_hw_gain_register(struct mtk_base_afe *afe)217{218 struct mtk_base_afe_dai *dai;219 220 dai = devm_kzalloc(afe->dev, sizeof(*dai), GFP_KERNEL);221 if (!dai)222 return -ENOMEM;223 224 list_add(&dai->list, &afe->sub_dais);225 226 dai->dai_drivers = mtk_dai_gain_driver;227 dai->num_dai_drivers = ARRAY_SIZE(mtk_dai_gain_driver);228 229 dai->controls = mtk_hw_gain_controls;230 dai->num_controls = ARRAY_SIZE(mtk_hw_gain_controls);231 dai->dapm_widgets = mtk_dai_hw_gain_widgets;232 dai->num_dapm_widgets = ARRAY_SIZE(mtk_dai_hw_gain_widgets);233 dai->dapm_routes = mtk_dai_hw_gain_routes;234 dai->num_dapm_routes = ARRAY_SIZE(mtk_dai_hw_gain_routes);235 return 0;236}237