From: Cyril Chao Date: Fri, 31 Oct 2025 07:32:00 +0000 (+0800) Subject: ASoC: mediatek: mt8189: support PCM in platform driver X-Git-Tag: v6.19-rc1~156^2~3^2~39^2~4 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=402ff043395fd9444810c723056fe741c77dbc21;p=thirdparty%2Fkernel%2Flinux.git ASoC: mediatek: mt8189: support PCM in platform driver Add mt8189 PCM DAI driver support. Signed-off-by: Cyril Chao Link: https://patch.msgid.link/20251031073216.8662-7-Cyril.Chao@mediatek.com Signed-off-by: Mark Brown --- diff --git a/sound/soc/mediatek/mt8189/mt8189-dai-pcm.c b/sound/soc/mediatek/mt8189/mt8189-dai-pcm.c new file mode 100644 index 0000000000000..21317c0413e5c --- /dev/null +++ b/sound/soc/mediatek/mt8189/mt8189-dai-pcm.c @@ -0,0 +1,332 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * MediaTek ALSA SoC Audio DAI I2S Control + * + * Copyright (c) 2025 MediaTek Inc. + * Author: Darren Ye + */ + +#include + +#include + +#include "mt8189-afe-common.h" +#include "mt8189-interconnection.h" +#include "mt8189-afe-clk.h" + +enum AUD_TX_LCH_RPT { + AUD_TX_LCH_RPT_NO_REPEAT, + AUD_TX_LCH_RPT_REPEAT +}; + +enum AUD_VBT_16K_MODE { + AUD_VBT_16K_MODE_DISABLE, + AUD_VBT_16K_MODE_ENABLE +}; + +enum AUD_EXT_MODEM { + AUD_EXT_MODEM_SELECT_INTERNAL, + AUD_EXT_MODEM_SELECT_EXTERNAL +}; + +enum AUD_PCM_SYNC_TYPE { + /* bck sync length = 1 */ + AUD_PCM_ONE_BCK_CYCLE_SYNC, + /* bck sync length = PCM_INTF_CON1[9:13] */ + AUD_PCM_EXTENDED_BCK_CYCLE_SYNC +}; + +enum AUD_BT_MODE { + AUD_BT_MODE_DUAL_MIC_ON_TX, + AUD_BT_MODE_SINGLE_MIC_ON_TX +}; + +enum AUD_PCM_AFIFO_SRC { + /* slave mode & external modem uses different crystal */ + AUD_PCM_AFIFO_ASRC, + /* slave mode & external modem uses the same crystal */ + AUD_PCM_AFIFO_AFIFO +}; + +enum AUD_PCM_CLOCK_SOURCE { + AUD_PCM_CLOCK_MASTER_MODE, + AUD_PCM_CLOCK_SLAVE_MODE +}; + +enum AUD_PCM_WLEN { + AUD_PCM_WLEN_PCM_32_BCK_CYCLES, + AUD_PCM_WLEN_PCM_64_BCK_CYCLES +}; + +enum AUD_PCM_MODE { + AUD_PCM_MODE_PCM_MODE_8K, + AUD_PCM_MODE_PCM_MODE_16K, + AUD_PCM_MODE_PCM_MODE_32K, + AUD_PCM_MODE_PCM_MODE_48K +}; + +enum AUD_PCM_FMT { + AUD_PCM_FMT_I2S, + AUD_PCM_FMT_EIAJ, + AUD_PCM_FMT_PCM_MODE_A, + AUD_PCM_FMT_PCM_MODE_B +}; + +enum AUD_BCLK_OUT_INV { + AUD_BCLK_OUT_INV_NO_INVERSE, + AUD_BCLK_OUT_INV_INVERSE +}; + +enum AUD_PCM_EN { + AUD_PCM_EN_DISABLE, + AUD_PCM_EN_ENABLE +}; + +enum AUD_PCM1_1X_EN_DOMAIN { + HOPPING_26M, + APLL, + SLAVE = 6 +}; + +enum AUD_PCM1_1X_EN_SLAVE_MODE { + PCM0_SLAVE_1X_EN, + PCM1_SLAVE_1X_EN +}; + +enum { + PCM_8K, + PCM_16K = 4, + PCM_32K = 8, + PCM_48K = 10 +}; + +static unsigned int pcm_1x_rate_transform(struct device *dev, + unsigned int rate) +{ + switch (rate) { + case 8000: + return PCM_8K; + case 16000: + return PCM_16K; + case 32000: + return PCM_32K; + case 48000: + return PCM_48K; + default: + dev_warn(dev, "rate %u invalid, use %d!!!\n", + rate, PCM_48K); + return PCM_48K; + } +} + +static unsigned int pcm_rate_transform(struct device *dev, + unsigned int rate) +{ + switch (rate) { + case 8000: + return MTK_AFE_PCM_RATE_8K; + case 16000: + return MTK_AFE_PCM_RATE_16K; + case 32000: + return MTK_AFE_PCM_RATE_32K; + case 48000: + return MTK_AFE_PCM_RATE_48K; + default: + dev_warn(dev, "rate %u invalid, use %d\n", + rate, MTK_AFE_PCM_RATE_48K); + return MTK_AFE_PCM_RATE_48K; + } +} + +/* dai component */ +static const struct snd_kcontrol_new mtk_pcm_0_playback_ch1_mix[] = { + SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1", AFE_CONN096_0, + I_ADDA_UL_CH1, 1, 0), + SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH1", AFE_CONN096_1, + I_DL2_CH1, 1, 0), + SOC_DAPM_SINGLE_AUTODISABLE("DL_24CH_CH1", AFE_CONN096_1, + I_DL_24CH_CH1, 1, 0), +}; + +static const struct snd_kcontrol_new mtk_pcm_0_playback_ch2_mix[] = { + SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2", AFE_CONN097_0, + I_ADDA_UL_CH2, 1, 0), + SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH2", AFE_CONN097_1, + I_DL2_CH2, 1, 0), + SOC_DAPM_SINGLE_AUTODISABLE("DL_24CH_CH2", AFE_CONN097_1, + I_DL_24CH_CH2, 1, 0), +}; + +static const struct snd_kcontrol_new mtk_pcm_0_playback_ch4_mix[] = { + SOC_DAPM_SINGLE_AUTODISABLE("I2SIN1_CH1", AFE_CONN099_4, + I_I2SIN1_CH1, 1, 0), + SOC_DAPM_SINGLE_AUTODISABLE("I2SIN1_CH2", AFE_CONN099_4, + I_I2SIN1_CH2, 1, 0), + SOC_DAPM_SINGLE_AUTODISABLE("DL0_CH1", AFE_CONN099_1, + I_DL0_CH1, 1, 0), + SOC_DAPM_SINGLE_AUTODISABLE("DL_24CH_CH1", AFE_CONN099_1, + I_DL_24CH_CH1, 1, 0), +}; + +static const struct snd_soc_dapm_widget mtk_dai_pcm_widgets[] = { + /* inter-connections */ + SND_SOC_DAPM_MIXER("PCM_0_PB_CH1", SND_SOC_NOPM, 0, 0, + mtk_pcm_0_playback_ch1_mix, + ARRAY_SIZE(mtk_pcm_0_playback_ch1_mix)), + SND_SOC_DAPM_MIXER("PCM_0_PB_CH2", SND_SOC_NOPM, 0, 0, + mtk_pcm_0_playback_ch2_mix, + ARRAY_SIZE(mtk_pcm_0_playback_ch2_mix)), + SND_SOC_DAPM_MIXER("PCM_0_PB_CH4", SND_SOC_NOPM, 0, 0, + mtk_pcm_0_playback_ch4_mix, + ARRAY_SIZE(mtk_pcm_0_playback_ch4_mix)), + + SND_SOC_DAPM_SUPPLY("PCM_0_EN", + AFE_PCM0_INTF_CON0, PCM0_EN_SFT, 0, + NULL, 0), + + SND_SOC_DAPM_SUPPLY("PCM0_CG", AUDIO_TOP_CON0, PDN_PCM0_SFT, 1, + NULL, 0), + + SND_SOC_DAPM_INPUT("AFE_PCM_INPUT"), + SND_SOC_DAPM_OUTPUT("AFE_PCM_OUTPUT"), +}; + +static const struct snd_soc_dapm_route mtk_dai_pcm_routes[] = { + {"PCM 0 Playback", NULL, "PCM_0_PB_CH1"}, + {"PCM 0 Playback", NULL, "PCM_0_PB_CH2"}, + {"PCM 0 Playback", NULL, "PCM_0_PB_CH4"}, + + {"PCM 0 Playback", NULL, "PCM_0_EN"}, + {"PCM 0 Capture", NULL, "PCM_0_EN"}, + {"PCM 0 Playback", NULL, "PCM0_CG"}, + {"PCM 0 Capture", NULL, "PCM0_CG"}, + + {"AFE_PCM_OUTPUT", NULL, "PCM 0 Playback"}, + {"PCM 0 Capture", NULL, "AFE_PCM_INPUT"}, + + {"PCM_0_PB_CH1", "DL2_CH1", "DL2"}, + {"PCM_0_PB_CH2", "DL2_CH2", "DL2"}, + {"PCM_0_PB_CH4", "DL0_CH1", "DL0"}, + + {"PCM_0_PB_CH1", "DL_24CH_CH1", "DL_24CH"}, + {"PCM_0_PB_CH2", "DL_24CH_CH2", "DL_24CH"}, + {"PCM_0_PB_CH4", "DL_24CH_CH1", "DL_24CH"}, +}; + +/* dai ops */ +static int mtk_dai_pcm_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai); + unsigned int rate = params_rate(params); + unsigned int rate_reg = pcm_rate_transform(afe->dev, rate); + unsigned int x_rate_reg = pcm_1x_rate_transform(afe->dev, rate); + unsigned int pcm_con0; + unsigned int pcm_con1; + unsigned int playback_active = 0; + unsigned int capture_active = 0; + struct snd_soc_dapm_widget *playback_widget = + snd_soc_dai_get_widget(dai, SNDRV_PCM_STREAM_PLAYBACK); + struct snd_soc_dapm_widget *capture_widget = + snd_soc_dai_get_widget(dai, SNDRV_PCM_STREAM_CAPTURE); + + if (playback_widget) + playback_active = playback_widget->active; + if (capture_widget) + capture_active = capture_widget->active; + dev_dbg(afe->dev, + "id %d, stream %d, rate %d, rate_reg %d, active p %d, c %d\n", + dai->id, substream->stream, rate, rate_reg, + playback_active, capture_active); + + if (playback_active || capture_active) + return 0; + switch (dai->id) { + case MT8189_DAI_PCM_0: + pcm_con0 = AUD_BCLK_OUT_INV_NO_INVERSE << PCM0_BCLK_OUT_INV_SFT; + pcm_con0 |= AUD_TX_LCH_RPT_NO_REPEAT << PCM0_TX_LCH_RPT_SFT; + pcm_con0 |= AUD_VBT_16K_MODE_DISABLE << PCM0_VBT_16K_MODE_SFT; + pcm_con0 |= 0 << PCM0_SYNC_LENGTH_SFT; + pcm_con0 |= AUD_PCM_ONE_BCK_CYCLE_SYNC << PCM0_SYNC_TYPE_SFT; + pcm_con0 |= AUD_PCM_AFIFO_AFIFO << PCM0_BYP_ASRC_SFT; + pcm_con0 |= AUD_PCM_CLOCK_MASTER_MODE << PCM0_SLAVE_SFT; + pcm_con0 |= rate_reg << PCM0_MODE_SFT; + pcm_con0 |= AUD_PCM_FMT_I2S << PCM0_FMT_SFT; + + pcm_con1 = AUD_EXT_MODEM_SELECT_INTERNAL << PCM0_EXT_MODEM_SFT; + pcm_con1 |= AUD_BT_MODE_DUAL_MIC_ON_TX << PCM0_BT_MODE_SFT; + pcm_con1 |= HOPPING_26M << PCM0_1X_EN_DOMAIN_SFT; + pcm_con1 |= x_rate_reg << PCM0_1X_EN_MODE_SFT; + + regmap_update_bits(afe->regmap, AFE_PCM0_INTF_CON0, + ~(unsigned int)PCM0_EN_MASK_SFT, pcm_con0); + regmap_update_bits(afe->regmap, AFE_PCM0_INTF_CON1, + AFE_PCM0_INTF_CON1_MASK_MON_MASK_SFT, + pcm_con1); + break; + default: + dev_err(afe->dev, "%s(), id %d not support\n", + __func__, dai->id); + return -EINVAL; + } + return 0; +} + +static const struct snd_soc_dai_ops mtk_dai_pcm_ops = { + .hw_params = mtk_dai_pcm_hw_params, +}; + +/* dai driver */ +#define MTK_PCM_RATES (SNDRV_PCM_RATE_8000 |\ + SNDRV_PCM_RATE_16000 |\ + SNDRV_PCM_RATE_32000 |\ + SNDRV_PCM_RATE_48000) + +#define MTK_PCM_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\ + SNDRV_PCM_FMTBIT_S24_LE |\ + SNDRV_PCM_FMTBIT_S32_LE) + +static struct snd_soc_dai_driver mtk_dai_pcm_driver[] = { + { + .name = "PCM 0", + .id = MT8189_DAI_PCM_0, + .playback = { + .stream_name = "PCM 0 Playback", + .channels_min = 1, + .channels_max = 2, + .rates = MTK_PCM_RATES, + .formats = MTK_PCM_FORMATS, + }, + .capture = { + .stream_name = "PCM 0 Capture", + .channels_min = 1, + .channels_max = 2, + .rates = MTK_PCM_RATES, + .formats = MTK_PCM_FORMATS, + }, + .ops = &mtk_dai_pcm_ops, + .symmetric_rate = 1, + .symmetric_sample_bits = 1, + }, +}; + +int mt8189_dai_pcm_register(struct mtk_base_afe *afe) +{ + struct mtk_base_afe_dai *dai; + + dai = devm_kzalloc(afe->dev, sizeof(*dai), GFP_KERNEL); + if (!dai) + return -ENOMEM; + + dai->dai_drivers = mtk_dai_pcm_driver; + dai->num_dai_drivers = ARRAY_SIZE(mtk_dai_pcm_driver); + dai->dapm_widgets = mtk_dai_pcm_widgets; + dai->num_dapm_widgets = ARRAY_SIZE(mtk_dai_pcm_widgets); + dai->dapm_routes = mtk_dai_pcm_routes; + dai->num_dapm_routes = ARRAY_SIZE(mtk_dai_pcm_routes); + + list_add(&dai->list, &afe->sub_dais); + + return 0; +}