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1// SPDX-License-Identifier: GPL-2.02/*3 * MediaTek 8365 ALSA SoC Audio DAI ADDA Control4 *5 * Copyright (c) 2024 MediaTek Inc.6 * Authors: Jia Zeng <jia.zeng@mediatek.com>7 * Alexandre Mergnat <amergnat@baylibre.com>8 */9 10#include <linux/bitops.h>11#include <linux/regmap.h>12#include <sound/pcm_params.h>13#include "mt8365-afe-clk.h"14#include "mt8365-afe-common.h"15#include "../common/mtk-dai-adda-common.h"16 17static int adda_afe_on_ref_cnt;18 19/* DAI Drivers */20 21static int mt8365_dai_set_adda_out(struct mtk_base_afe *afe, unsigned int rate)22{23 unsigned int val;24 25 if (rate == 8000 || rate == 16000)26 val = AFE_ADDA_DL_VOICE_DATA;27 else28 val = 0;29 30 val |= FIELD_PREP(AFE_ADDA_DL_SAMPLING_RATE,31 mtk_adda_dl_rate_transform(afe, rate));32 val |= AFE_ADDA_DL_8X_UPSAMPLE |33 AFE_ADDA_DL_MUTE_OFF_CH1 |34 AFE_ADDA_DL_MUTE_OFF_CH2 |35 AFE_ADDA_DL_DEGRADE_GAIN;36 37 regmap_update_bits(afe->regmap, AFE_ADDA_PREDIS_CON0, 0xffffffff, 0);38 regmap_update_bits(afe->regmap, AFE_ADDA_PREDIS_CON1, 0xffffffff, 0);39 regmap_update_bits(afe->regmap, AFE_ADDA_DL_SRC2_CON0, 0xffffffff, val);40 /* SA suggest apply -0.3db to audio/speech path */41 regmap_update_bits(afe->regmap, AFE_ADDA_DL_SRC2_CON1,42 0xffffffff, 0xf74f0000);43 /* SA suggest use default value for sdm */44 regmap_update_bits(afe->regmap, AFE_ADDA_DL_SDM_DCCOMP_CON,45 0xffffffff, 0x0700701e);46 47 return 0;48}49 50static int mt8365_dai_set_adda_in(struct mtk_base_afe *afe, unsigned int rate)51{52 unsigned int val;53 54 val = FIELD_PREP(AFE_ADDA_UL_SAMPLING_RATE,55 mtk_adda_ul_rate_transform(afe, rate));56 regmap_update_bits(afe->regmap, AFE_ADDA_UL_SRC_CON0,57 AFE_ADDA_UL_SAMPLING_RATE, val);58 /* Using Internal ADC */59 regmap_update_bits(afe->regmap, AFE_ADDA_TOP_CON0, 0x1, 0x0);60 61 return 0;62}63 64int mt8365_dai_enable_adda_on(struct mtk_base_afe *afe)65{66 unsigned long flags;67 struct mt8365_afe_private *afe_priv = afe->platform_priv;68 69 spin_lock_irqsave(&afe_priv->afe_ctrl_lock, flags);70 71 adda_afe_on_ref_cnt++;72 if (adda_afe_on_ref_cnt == 1)73 regmap_update_bits(afe->regmap, AFE_ADDA_UL_DL_CON0,74 AFE_ADDA_UL_DL_ADDA_AFE_ON,75 AFE_ADDA_UL_DL_ADDA_AFE_ON);76 77 spin_unlock_irqrestore(&afe_priv->afe_ctrl_lock, flags);78 79 return 0;80}81 82int mt8365_dai_disable_adda_on(struct mtk_base_afe *afe)83{84 unsigned long flags;85 struct mt8365_afe_private *afe_priv = afe->platform_priv;86 87 spin_lock_irqsave(&afe_priv->afe_ctrl_lock, flags);88 89 adda_afe_on_ref_cnt--;90 if (adda_afe_on_ref_cnt == 0)91 regmap_update_bits(afe->regmap, AFE_ADDA_UL_DL_CON0,92 AFE_ADDA_UL_DL_ADDA_AFE_ON,93 ~AFE_ADDA_UL_DL_ADDA_AFE_ON);94 else if (adda_afe_on_ref_cnt < 0) {95 adda_afe_on_ref_cnt = 0;96 dev_warn(afe->dev, "Abnormal adda_on ref count. Force it to 0\n");97 }98 99 spin_unlock_irqrestore(&afe_priv->afe_ctrl_lock, flags);100 101 return 0;102}103 104static void mt8365_dai_set_adda_out_enable(struct mtk_base_afe *afe,105 bool enable)106{107 regmap_update_bits(afe->regmap, AFE_ADDA_DL_SRC2_CON0, 0x1, enable);108 109 if (enable)110 mt8365_dai_enable_adda_on(afe);111 else112 mt8365_dai_disable_adda_on(afe);113}114 115static void mt8365_dai_set_adda_in_enable(struct mtk_base_afe *afe, bool enable)116{117 if (enable) {118 regmap_update_bits(afe->regmap, AFE_ADDA_UL_SRC_CON0, 0x1, 0x1);119 mt8365_dai_enable_adda_on(afe);120 /* enable aud_pad_top fifo */121 regmap_update_bits(afe->regmap, AFE_AUD_PAD_TOP,122 0xffffffff, 0x31);123 } else {124 /* disable aud_pad_top fifo */125 regmap_update_bits(afe->regmap, AFE_AUD_PAD_TOP,126 0xffffffff, 0x30);127 regmap_update_bits(afe->regmap, AFE_ADDA_UL_SRC_CON0, 0x1, 0x0);128 /* de suggest disable ADDA_UL_SRC at least wait 125us */129 usleep_range(150, 300);130 mt8365_dai_disable_adda_on(afe);131 }132}133 134static int mt8365_dai_int_adda_startup(struct snd_pcm_substream *substream,135 struct snd_soc_dai *dai)136{137 struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);138 unsigned int stream = substream->stream;139 140 mt8365_afe_enable_main_clk(afe);141 142 if (stream == SNDRV_PCM_STREAM_PLAYBACK) {143 mt8365_afe_enable_top_cg(afe, MT8365_TOP_CG_DAC);144 mt8365_afe_enable_top_cg(afe, MT8365_TOP_CG_DAC_PREDIS);145 } else if (stream == SNDRV_PCM_STREAM_CAPTURE) {146 mt8365_afe_enable_top_cg(afe, MT8365_TOP_CG_ADC);147 }148 149 return 0;150}151 152static void mt8365_dai_int_adda_shutdown(struct snd_pcm_substream *substream,153 struct snd_soc_dai *dai)154{155 struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);156 struct mt8365_afe_private *afe_priv = afe->platform_priv;157 struct mt8365_be_dai_data *be =158 &afe_priv->be_data[dai->id - MT8365_AFE_BACKEND_BASE];159 unsigned int stream = substream->stream;160 161 if (be->prepared[stream]) {162 if (stream == SNDRV_PCM_STREAM_PLAYBACK) {163 mt8365_dai_set_adda_out_enable(afe, false);164 mt8365_afe_set_i2s_out_enable(afe, false);165 } else {166 mt8365_dai_set_adda_in_enable(afe, false);167 }168 be->prepared[stream] = false;169 }170 171 if (stream == SNDRV_PCM_STREAM_PLAYBACK) {172 mt8365_afe_disable_top_cg(afe, MT8365_TOP_CG_DAC_PREDIS);173 mt8365_afe_disable_top_cg(afe, MT8365_TOP_CG_DAC);174 } else if (stream == SNDRV_PCM_STREAM_CAPTURE) {175 mt8365_afe_disable_top_cg(afe, MT8365_TOP_CG_ADC);176 }177 178 mt8365_afe_disable_main_clk(afe);179}180 181static int mt8365_dai_int_adda_prepare(struct snd_pcm_substream *substream,182 struct snd_soc_dai *dai)183{184 struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);185 struct mt8365_afe_private *afe_priv = afe->platform_priv;186 struct mt8365_be_dai_data *be =187 &afe_priv->be_data[dai->id - MT8365_AFE_BACKEND_BASE];188 unsigned int rate = substream->runtime->rate;189 int bit_width = snd_pcm_format_width(substream->runtime->format);190 int ret;191 192 dev_info(afe->dev, "%s '%s' rate = %u\n", __func__,193 snd_pcm_stream_str(substream), rate);194 195 if (be->prepared[substream->stream]) {196 dev_info(afe->dev, "%s '%s' prepared already\n",197 __func__, snd_pcm_stream_str(substream));198 return 0;199 }200 201 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {202 ret = mt8365_dai_set_adda_out(afe, rate);203 if (ret)204 return ret;205 206 ret = mt8365_afe_set_i2s_out(afe, rate, bit_width);207 if (ret)208 return ret;209 210 mt8365_dai_set_adda_out_enable(afe, true);211 mt8365_afe_set_i2s_out_enable(afe, true);212 } else {213 ret = mt8365_dai_set_adda_in(afe, rate);214 if (ret)215 return ret;216 217 mt8365_dai_set_adda_in_enable(afe, true);218 }219 be->prepared[substream->stream] = true;220 return 0;221}222 223static const struct snd_soc_dai_ops mt8365_afe_int_adda_ops = {224 .startup = mt8365_dai_int_adda_startup,225 .shutdown = mt8365_dai_int_adda_shutdown,226 .prepare = mt8365_dai_int_adda_prepare,227};228 229static struct snd_soc_dai_driver mtk_dai_adda_driver[] = {230 {231 .name = "INT ADDA",232 .id = MT8365_AFE_IO_INT_ADDA,233 .playback = {234 .stream_name = "INT ADDA Playback",235 .channels_min = 1,236 .channels_max = 2,237 .rates = SNDRV_PCM_RATE_8000_48000,238 .formats = SNDRV_PCM_FMTBIT_S16_LE,239 },240 .capture = {241 .stream_name = "INT ADDA Capture",242 .channels_min = 1,243 .channels_max = 2,244 .rates = SNDRV_PCM_RATE_16000 |245 SNDRV_PCM_RATE_32000 |246 SNDRV_PCM_RATE_48000,247 .formats = SNDRV_PCM_FMTBIT_S16_LE |248 SNDRV_PCM_FMTBIT_S32_LE,249 },250 .ops = &mt8365_afe_int_adda_ops,251 }252};253 254/* DAI Controls */255 256static const struct snd_kcontrol_new mtk_adda_dl_ch1_mix[] = {257 SOC_DAPM_SINGLE_AUTODISABLE("GAIN1_OUT_CH1 Switch", AFE_CONN3,258 10, 1, 0),259};260 261static const struct snd_kcontrol_new mtk_adda_dl_ch2_mix[] = {262 SOC_DAPM_SINGLE_AUTODISABLE("GAIN1_OUT_CH2 Switch", AFE_CONN4,263 11, 1, 0),264};265 266static const struct snd_kcontrol_new int_adda_o03_o04_enable_ctl =267 SOC_DAPM_SINGLE_VIRT("Switch", 1);268 269/* DAI widget */270 271static const struct snd_soc_dapm_widget mtk_dai_adda_widgets[] = {272 SND_SOC_DAPM_SWITCH("INT ADDA O03_O04", SND_SOC_NOPM, 0, 0,273 &int_adda_o03_o04_enable_ctl),274 /* inter-connections */275 SND_SOC_DAPM_MIXER("ADDA_DL_CH1", SND_SOC_NOPM, 0, 0,276 mtk_adda_dl_ch1_mix,277 ARRAY_SIZE(mtk_adda_dl_ch1_mix)),278 SND_SOC_DAPM_MIXER("ADDA_DL_CH2", SND_SOC_NOPM, 0, 0,279 mtk_adda_dl_ch2_mix,280 ARRAY_SIZE(mtk_adda_dl_ch2_mix)),281};282 283/* DAI route */284 285static const struct snd_soc_dapm_route mtk_dai_adda_routes[] = {286 {"INT ADDA O03_O04", "Switch", "O03"},287 {"INT ADDA O03_O04", "Switch", "O04"},288 {"INT ADDA Playback", NULL, "INT ADDA O03_O04"},289 {"INT ADDA Playback", NULL, "ADDA_DL_CH1"},290 {"INT ADDA Playback", NULL, "ADDA_DL_CH2"},291 {"AIN Mux", "INT ADC", "INT ADDA Capture"},292 {"ADDA_DL_CH1", "GAIN1_OUT_CH1", "Hostless FM DL"},293 {"ADDA_DL_CH2", "GAIN1_OUT_CH2", "Hostless FM DL"},294};295 296int mt8365_dai_adda_register(struct mtk_base_afe *afe)297{298 struct mtk_base_afe_dai *dai;299 300 dai = devm_kzalloc(afe->dev, sizeof(*dai), GFP_KERNEL);301 if (!dai)302 return -ENOMEM;303 list_add(&dai->list, &afe->sub_dais);304 dai->dai_drivers = mtk_dai_adda_driver;305 dai->num_dai_drivers = ARRAY_SIZE(mtk_dai_adda_driver);306 dai->dapm_widgets = mtk_dai_adda_widgets;307 dai->num_dapm_widgets = ARRAY_SIZE(mtk_dai_adda_widgets);308 dai->dapm_routes = mtk_dai_adda_routes;309 dai->num_dapm_routes = ARRAY_SIZE(mtk_dai_adda_routes);310 return 0;311}312