This patch adds mt8186 pcm dai driver.
Signed-off-by: Jiaxin Yu jiaxin.yu@mediatek.com --- sound/soc/mediatek/mt8186/mt8186-dai-pcm.c | 432 +++++++++++++++++++++ 1 file changed, 432 insertions(+) create mode 100644 sound/soc/mediatek/mt8186/mt8186-dai-pcm.c
diff --git a/sound/soc/mediatek/mt8186/mt8186-dai-pcm.c b/sound/soc/mediatek/mt8186/mt8186-dai-pcm.c new file mode 100644 index 000000000000..73b3f720ed35 --- /dev/null +++ b/sound/soc/mediatek/mt8186/mt8186-dai-pcm.c @@ -0,0 +1,432 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// MediaTek ALSA SoC Audio DAI I2S Control +// +// Copyright (c) 2022 MediaTek Inc. +// Author: Jiaxin Yu jiaxin.yu@mediatek.com + +#include <linux/regmap.h> +#include <sound/pcm_params.h> +#include "mt8186-afe-common.h" +#include "mt8186-afe-gpio.h" +#include "mt8186-interconnection.h" + +struct mtk_afe_pcm_priv { + unsigned int id; + unsigned int fmt; + unsigned int bck_invert; + unsigned int lck_invert; +}; + +enum AUD_TX_LCH_RPT { + AUD_TX_LCH_RPT_NO_REPEAT = 0, + AUD_TX_LCH_RPT_REPEAT = 1 +}; + +enum AUD_VBT_16K_MODE { + AUD_VBT_16K_MODE_DISABLE = 0, + AUD_VBT_16K_MODE_ENABLE = 1 +}; + +enum AUD_EXT_MODEM { + AUD_EXT_MODEM_SELECT_INTERNAL = 0, + AUD_EXT_MODEM_SELECT_EXTERNAL = 1 +}; + +enum AUD_PCM_SYNC_TYPE { + /* bck sync length = 1 */ + AUD_PCM_ONE_BCK_CYCLE_SYNC = 0, + /* bck sync length = PCM_INTF_CON1[9:13] */ + AUD_PCM_EXTENDED_BCK_CYCLE_SYNC = 1 +}; + +enum AUD_BT_MODE { + AUD_BT_MODE_DUAL_MIC_ON_TX = 0, + AUD_BT_MODE_SINGLE_MIC_ON_TX = 1 +}; + +enum AUD_PCM_AFIFO_SRC { + /* slave mode & external modem uses different crystal */ + AUD_PCM_AFIFO_ASRC = 0, + /* slave mode & external modem uses the same crystal */ + AUD_PCM_AFIFO_AFIFO = 1 +}; + +enum AUD_PCM_CLOCK_SOURCE { + AUD_PCM_CLOCK_MASTER_MODE = 0, + AUD_PCM_CLOCK_SLAVE_MODE = 1 +}; + +enum AUD_PCM_WLEN { + AUD_PCM_WLEN_PCM_32_BCK_CYCLES = 0, + AUD_PCM_WLEN_PCM_64_BCK_CYCLES = 1 +}; + +enum AUD_PCM_24BIT { + AUD_PCM_24BIT_PCM_16_BITS = 0, + AUD_PCM_24BIT_PCM_24_BITS = 1 +}; + +enum AUD_PCM_MODE { + AUD_PCM_MODE_PCM_MODE_8K = 0, + AUD_PCM_MODE_PCM_MODE_16K = 1, + AUD_PCM_MODE_PCM_MODE_32K = 2, + AUD_PCM_MODE_PCM_MODE_48K = 3, +}; + +enum AUD_PCM_FMT { + AUD_PCM_FMT_I2S = 0, + AUD_PCM_FMT_EIAJ = 1, + AUD_PCM_FMT_PCM_MODE_A = 2, + AUD_PCM_FMT_PCM_MODE_B = 3 +}; + +enum AUD_BCLK_OUT_INV { + AUD_BCLK_OUT_INV_NO_INVERSE = 0, + AUD_BCLK_OUT_INV_INVERSE = 1 +}; + +enum AUD_LRCLK_OUT_INV { + AUD_LRCLK_OUT_INV_NO_INVERSE = 0, + AUD_LRCLK_OUT_INV_INVERSE = 1 +}; + +enum AUD_PCM_EN { + AUD_PCM_EN_DISABLE = 0, + AUD_PCM_EN_ENABLE = 1 +}; + +/* dai component */ +static const struct snd_kcontrol_new mtk_pcm_1_playback_ch1_mix[] = { + SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1 Switch", AFE_CONN7, + I_ADDA_UL_CH1, 1, 0), + SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH1 Switch", AFE_CONN7, + I_DL2_CH1, 1, 0), + SOC_DAPM_SINGLE_AUTODISABLE("DL4_CH1 Switch", AFE_CONN7_1, + I_DL4_CH1, 1, 0), +}; + +static const struct snd_kcontrol_new mtk_pcm_1_playback_ch2_mix[] = { + SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2 Switch", AFE_CONN8, + I_ADDA_UL_CH2, 1, 0), + SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH2 Switch", AFE_CONN8, + I_DL2_CH2, 1, 0), + SOC_DAPM_SINGLE_AUTODISABLE("DL4_CH2 Switch", AFE_CONN8_1, + I_DL4_CH2, 1, 0), +}; + +static int mtk_pcm_en_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, + int event) +{ + struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm); + struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt); + + dev_dbg(afe->dev, "%s(), name %s, event 0x%x\n", + __func__, w->name, event); + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + mt8186_afe_gpio_request(afe->dev, true, MT8186_DAI_PCM, 0); + break; + case SND_SOC_DAPM_POST_PMD: + mt8186_afe_gpio_request(afe->dev, false, MT8186_DAI_PCM, 0); + break; + } + + return 0; +} + +/* pcm in/out lpbk */ +static const char * const pcm_lpbk_mux_map[] = { + "Normal", "Lpbk", +}; + +static int pcm_lpbk_mux_map_value[] = { + 0, 1, +}; + +static SOC_VALUE_ENUM_SINGLE_AUTODISABLE_DECL(pcm_in_lpbk_mux_map_enum, + PCM_INTF_CON1, + PCM_I2S_PCM_LOOPBACK_SFT, + 1, + pcm_lpbk_mux_map, + pcm_lpbk_mux_map_value); + +static const struct snd_kcontrol_new pcm_in_lpbk_mux_control = + SOC_DAPM_ENUM("PCM In Lpbk Select", pcm_in_lpbk_mux_map_enum); + +static SOC_VALUE_ENUM_SINGLE_AUTODISABLE_DECL(pcm_out_lpbk_mux_map_enum, + PCM_INTF_CON1, + PCM_I2S_PCM_LOOPBACK_SFT, + 1, + pcm_lpbk_mux_map, + pcm_lpbk_mux_map_value); + +static const struct snd_kcontrol_new pcm_out_lpbk_mux_control = + SOC_DAPM_ENUM("PCM Out Lpbk Select", pcm_out_lpbk_mux_map_enum); + +static const struct snd_soc_dapm_widget mtk_dai_pcm_widgets[] = { + /* inter-connections */ + SND_SOC_DAPM_MIXER("PCM_1_PB_CH1", SND_SOC_NOPM, 0, 0, + mtk_pcm_1_playback_ch1_mix, + ARRAY_SIZE(mtk_pcm_1_playback_ch1_mix)), + SND_SOC_DAPM_MIXER("PCM_1_PB_CH2", SND_SOC_NOPM, 0, 0, + mtk_pcm_1_playback_ch2_mix, + ARRAY_SIZE(mtk_pcm_1_playback_ch2_mix)), + + SND_SOC_DAPM_SUPPLY("PCM_1_EN", + PCM_INTF_CON1, PCM_EN_SFT, 0, + mtk_pcm_en_event, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), + + /* pcm in lpbk */ + SND_SOC_DAPM_MUX("PCM_In_Lpbk_Mux", + SND_SOC_NOPM, 0, 0, &pcm_in_lpbk_mux_control), + + /* pcm out lpbk */ + SND_SOC_DAPM_MUX("PCM_Out_Lpbk_Mux", + SND_SOC_NOPM, 0, 0, &pcm_out_lpbk_mux_control), +}; + +static const struct snd_soc_dapm_route mtk_dai_pcm_routes[] = { + {"PCM 1 Playback", NULL, "PCM_1_PB_CH1"}, + {"PCM 1 Playback", NULL, "PCM_1_PB_CH2"}, + + {"PCM 1 Playback", NULL, "PCM_1_EN"}, + {"PCM 1 Capture", NULL, "PCM_1_EN"}, + + {"PCM_1_PB_CH1", "DL2_CH1 Switch", "DL2"}, + {"PCM_1_PB_CH2", "DL2_CH2 Switch", "DL2"}, + + {"PCM_1_PB_CH1", "DL4_CH1 Switch", "DL4"}, + {"PCM_1_PB_CH2", "DL4_CH2 Switch", "DL4"}, + + /* pcm out lpbk */ + {"PCM_Out_Lpbk_Mux", "Lpbk", "PCM 1 Playback"}, + {"I2S0", NULL, "PCM_Out_Lpbk_Mux"}, + + /* pcm in lpbk */ + {"PCM_In_Lpbk_Mux", "Lpbk", "PCM 1 Capture"}, + {"I2S3", NULL, "PCM_In_Lpbk_Mux"}, +}; + +/* 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); + struct mt8186_afe_private *afe_priv = afe->platform_priv; + int pcm_id = dai->id; + struct mtk_afe_pcm_priv *pcm_priv = afe_priv->dai_priv[pcm_id]; + unsigned int rate = params_rate(params); + unsigned int rate_reg = mt8186_rate_transform(afe->dev, rate, dai->id); + snd_pcm_format_t format = params_format(params); + unsigned int data_width = + snd_pcm_format_width(format); + unsigned int wlen_width = + snd_pcm_format_physical_width(format); + unsigned int pcm_con = 0; + + dev_info(afe->dev, "%s(), id %d, stream %d, widget active p %d, c %d\n", + __func__, + dai->id, + substream->stream, + dai->playback_widget->active, + dai->capture_widget->active); + dev_info(afe->dev, "%s(), rate %d, rate_reg %d, data_width %d, wlen_width %d\n", + __func__, + rate, + rate_reg, + data_width, + wlen_width); + + if (dai->playback_widget->active || dai->capture_widget->active) + return 0; + + switch (dai->id) { + case MT8186_DAI_PCM: + pcm_con |= AUD_TX_LCH_RPT_NO_REPEAT << PCM_TX_LCH_RPT_SFT; + pcm_con |= AUD_VBT_16K_MODE_DISABLE << PCM_VBT_16K_MODE_SFT; + pcm_con |= AUD_EXT_MODEM_SELECT_EXTERNAL << PCM_EXT_MODEM_SFT; + pcm_con |= AUD_PCM_ONE_BCK_CYCLE_SYNC << PCM_SYNC_TYPE_SFT; + pcm_con |= AUD_BT_MODE_DUAL_MIC_ON_TX << PCM_BT_MODE_SFT; + pcm_con |= AUD_PCM_AFIFO_AFIFO << PCM_BYP_ASRC_SFT; + pcm_con |= AUD_PCM_CLOCK_MASTER_MODE << PCM_SLAVE_SFT; + pcm_con |= 0 << PCM_SYNC_LENGTH_SFT; + + /* sampling rate */ + pcm_con |= rate_reg << PCM_MODE_SFT; + + /* format */ + pcm_con |= pcm_priv->fmt << PCM_FMT_SFT; + + /* 24bit data width */ + if (data_width > 16) + pcm_con |= AUD_PCM_24BIT_PCM_24_BITS << PCM_24BIT_SFT; + else + pcm_con |= AUD_PCM_24BIT_PCM_16_BITS << PCM_24BIT_SFT; + + /* wlen width*/ + if (wlen_width > 16) + pcm_con |= AUD_PCM_WLEN_PCM_64_BCK_CYCLES << PCM_WLEN_SFT; + else + pcm_con |= AUD_PCM_WLEN_PCM_32_BCK_CYCLES << PCM_WLEN_SFT; + + /* clock invert */ + pcm_con |= pcm_priv->lck_invert << PCM_SYNC_OUT_INV_SFT; + pcm_con |= pcm_priv->bck_invert << PCM_BCLK_OUT_INV_SFT; + + regmap_update_bits(afe->regmap, PCM_INTF_CON1, + 0xfffffffe, pcm_con); + break; + default: + dev_info(afe->dev, "%s(), id %d not support\n", + __func__, dai->id); + return -EINVAL; + } + + return 0; +} + +static int mtk_dai_pcm_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai); + struct mt8186_afe_private *afe_priv = afe->platform_priv; + struct mtk_afe_pcm_priv *pcm_priv = afe_priv->dai_priv[dai->id]; + + if (!pcm_priv) { + dev_info(afe->dev, "%s(), tdm_priv == NULL", __func__); + return -EINVAL; + } + + /* DAI mode*/ + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + pcm_priv->fmt = AUD_PCM_FMT_I2S; + break; + case SND_SOC_DAIFMT_LEFT_J: + pcm_priv->fmt = AUD_PCM_FMT_EIAJ; + break; + case SND_SOC_DAIFMT_DSP_A: + pcm_priv->fmt = AUD_PCM_FMT_PCM_MODE_A; + break; + case SND_SOC_DAIFMT_DSP_B: + pcm_priv->fmt = AUD_PCM_FMT_PCM_MODE_B; + break; + default: + pcm_priv->fmt = AUD_PCM_FMT_I2S; + } + + /* DAI clock inversion*/ + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + pcm_priv->bck_invert = AUD_BCLK_OUT_INV_NO_INVERSE; + pcm_priv->lck_invert = AUD_LRCLK_OUT_INV_NO_INVERSE; + break; + case SND_SOC_DAIFMT_NB_IF: + pcm_priv->bck_invert = AUD_BCLK_OUT_INV_NO_INVERSE; + pcm_priv->lck_invert = AUD_BCLK_OUT_INV_INVERSE; + break; + case SND_SOC_DAIFMT_IB_NF: + pcm_priv->bck_invert = AUD_BCLK_OUT_INV_INVERSE; + pcm_priv->lck_invert = AUD_LRCLK_OUT_INV_NO_INVERSE; + break; + case SND_SOC_DAIFMT_IB_IF: + pcm_priv->bck_invert = AUD_BCLK_OUT_INV_INVERSE; + pcm_priv->lck_invert = AUD_BCLK_OUT_INV_INVERSE; + break; + default: + pcm_priv->bck_invert = AUD_BCLK_OUT_INV_NO_INVERSE; + pcm_priv->lck_invert = AUD_LRCLK_OUT_INV_NO_INVERSE; + break; + } + + return 0; +} + +static const struct snd_soc_dai_ops mtk_dai_pcm_ops = { + .hw_params = mtk_dai_pcm_hw_params, + .set_fmt = mtk_dai_pcm_set_fmt, +}; + +/* 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 1", + .id = MT8186_DAI_PCM, + .playback = { + .stream_name = "PCM 1 Playback", + .channels_min = 1, + .channels_max = 2, + .rates = MTK_PCM_RATES, + .formats = MTK_PCM_FORMATS, + }, + .capture = { + .stream_name = "PCM 1 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, + }, +}; + +static struct mtk_afe_pcm_priv *init_pcm_priv_data(struct mtk_base_afe *afe) +{ + struct mtk_afe_pcm_priv *pcm_priv; + + pcm_priv = devm_kzalloc(afe->dev, sizeof(struct mtk_afe_pcm_priv), + GFP_KERNEL); + if (!pcm_priv) + return NULL; + + pcm_priv->id = MT8186_DAI_PCM; + pcm_priv->fmt = AUD_PCM_FMT_I2S; + pcm_priv->bck_invert = AUD_BCLK_OUT_INV_NO_INVERSE; + pcm_priv->lck_invert = AUD_LRCLK_OUT_INV_NO_INVERSE; + + return pcm_priv; +} + +int mt8186_dai_pcm_register(struct mtk_base_afe *afe) +{ + struct mt8186_afe_private *afe_priv = afe->platform_priv; + struct mtk_afe_pcm_priv *pcm_priv; + struct mtk_base_afe_dai *dai; + + dai = devm_kzalloc(afe->dev, sizeof(*dai), GFP_KERNEL); + if (!dai) + return -ENOMEM; + + list_add(&dai->list, &afe->sub_dais); + + 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); + + pcm_priv = init_pcm_priv_data(afe); + if (!pcm_priv) + return -ENOMEM; + + afe_priv->dai_priv[MT8186_DAI_PCM] = pcm_priv; + + return 0; +}