diff options
Diffstat (limited to 'sound/soc/mediatek/mt8186/mt8186-dai-tdm.c')
| -rw-r--r-- | sound/soc/mediatek/mt8186/mt8186-dai-tdm.c | 698 |
1 files changed, 698 insertions, 0 deletions
diff --git a/sound/soc/mediatek/mt8186/mt8186-dai-tdm.c b/sound/soc/mediatek/mt8186/mt8186-dai-tdm.c new file mode 100644 index 000000000000..c6ead7c252f0 --- /dev/null +++ b/sound/soc/mediatek/mt8186/mt8186-dai-tdm.c @@ -0,0 +1,698 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// MediaTek ALSA SoC Audio DAI TDM 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-clk.h" +#include "mt8186-afe-common.h" +#include "mt8186-afe-gpio.h" +#include "mt8186-interconnection.h" + +#define TDM_HD_EN_W_NAME "TDM_HD_EN" +#define TDM_MCLK_EN_W_NAME "TDM_MCLK_EN" +#define MTK_AFE_TDM_KCONTROL_NAME "TDM_HD_Mux" + +struct mtk_afe_tdm_priv { + unsigned int id; + unsigned int rate; /* for determine which apll to use */ + unsigned int bck_invert; + unsigned int lck_invert; + unsigned int lrck_width; + unsigned int mclk_id; + unsigned int mclk_multiple; /* according to sample rate */ + unsigned int mclk_rate; + unsigned int mclk_apll; + unsigned int tdm_mode; + unsigned int data_mode; + unsigned int slave_mode; + unsigned int low_jitter_en; +}; + +enum { + TDM_IN_I2S = 0, + TDM_IN_LJ = 1, + TDM_IN_RJ = 2, + TDM_IN_DSP_A = 4, + TDM_IN_DSP_B = 5, +}; + +enum { + TDM_DATA_ONE_PIN = 0, + TDM_DATA_MULTI_PIN, +}; + +enum { + TDM_BCK_NON_INV = 0, + TDM_BCK_INV = 1, +}; + +enum { + TDM_LCK_NON_INV = 0, + TDM_LCK_INV = 1, +}; + +static unsigned int get_tdm_lrck_width(snd_pcm_format_t format, + unsigned int mode) +{ + if (mode == TDM_IN_DSP_A || mode == TDM_IN_DSP_B) + return 0; + + return snd_pcm_format_physical_width(format) - 1; +} + +static unsigned int get_tdm_ch_fixup(unsigned int channels) +{ + if (channels > 4) + return 8; + else if (channels > 2) + return 4; + + return 2; +} + +static unsigned int get_tdm_ch_per_sdata(unsigned int mode, + unsigned int channels) +{ + if (mode == TDM_IN_DSP_A || mode == TDM_IN_DSP_B) + return get_tdm_ch_fixup(channels); + + return 2; +} + +enum { + SUPPLY_SEQ_APLL, + SUPPLY_SEQ_TDM_MCK_EN, + SUPPLY_SEQ_TDM_HD_EN, + SUPPLY_SEQ_TDM_EN, +}; + +static int get_tdm_id_by_name(const char *name) +{ + return MT8186_DAI_TDM_IN; +} + +static int mtk_tdm_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); + struct mt8186_afe_private *afe_priv = afe->platform_priv; + int dai_id = get_tdm_id_by_name(w->name); + struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai_id]; + + if (!tdm_priv) { + dev_err(afe->dev, "%s(), tdm_priv == NULL", __func__); + return -EINVAL; + } + + dev_dbg(cmpnt->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, tdm_priv->id, 0); + break; + case SND_SOC_DAPM_POST_PMD: + mt8186_afe_gpio_request(afe->dev, false, tdm_priv->id, 0); + break; + default: + break; + } + + return 0; +} + +static int mtk_tdm_mck_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); + struct mt8186_afe_private *afe_priv = afe->platform_priv; + int dai_id = get_tdm_id_by_name(w->name); + struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai_id]; + + if (!tdm_priv) { + dev_err(afe->dev, "%s(), tdm_priv == NULL", __func__); + return -EINVAL; + } + + dev_dbg(cmpnt->dev, "%s(), name %s, event 0x%x, dai_id %d\n", + __func__, w->name, event, dai_id); + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + mt8186_mck_enable(afe, tdm_priv->mclk_id, tdm_priv->mclk_rate); + break; + case SND_SOC_DAPM_POST_PMD: + tdm_priv->mclk_rate = 0; + mt8186_mck_disable(afe, tdm_priv->mclk_id); + break; + default: + break; + } + + return 0; +} + +/* dai component */ +/* tdm virtual mux to output widget */ +static const char * const tdm_mux_map[] = { + "Normal", "Dummy_Widget", +}; + +static int tdm_mux_map_value[] = { + 0, 1, +}; + +static SOC_VALUE_ENUM_SINGLE_AUTODISABLE_DECL(tdm_mux_map_enum, + SND_SOC_NOPM, + 0, + 1, + tdm_mux_map, + tdm_mux_map_value); + +static const struct snd_kcontrol_new tdm_in_mux_control = + SOC_DAPM_ENUM("TDM In Select", tdm_mux_map_enum); + +static const struct snd_soc_dapm_widget mtk_dai_tdm_widgets[] = { + SND_SOC_DAPM_CLOCK_SUPPLY("aud_tdm_clk"), + + SND_SOC_DAPM_SUPPLY_S("TDM_EN", SUPPLY_SEQ_TDM_EN, + ETDM_IN1_CON0, ETDM_IN1_CON0_REG_ETDM_IN_EN_SFT, + 0, mtk_tdm_en_event, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), + /* tdm hd en */ + SND_SOC_DAPM_SUPPLY_S(TDM_HD_EN_W_NAME, SUPPLY_SEQ_TDM_HD_EN, + ETDM_IN1_CON2, ETDM_IN1_CON2_REG_CLOCK_SOURCE_SEL_SFT, + 0, NULL, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), + + SND_SOC_DAPM_SUPPLY_S(TDM_MCLK_EN_W_NAME, SUPPLY_SEQ_TDM_MCK_EN, + SND_SOC_NOPM, 0, 0, + mtk_tdm_mck_en_event, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), + + SND_SOC_DAPM_INPUT("TDM_DUMMY_IN"), + + SND_SOC_DAPM_MUX("TDM_In_Mux", + SND_SOC_NOPM, 0, 0, &tdm_in_mux_control), +}; + +static int mtk_afe_tdm_mclk_connect(struct snd_soc_dapm_widget *source, + struct snd_soc_dapm_widget *sink) +{ + struct snd_soc_dapm_widget *w = sink; + struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm); + struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt); + struct mt8186_afe_private *afe_priv = afe->platform_priv; + int dai_id = get_tdm_id_by_name(w->name); + struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai_id]; + + if (!tdm_priv) { + dev_err(afe->dev, "%s(), tdm_priv == NULL", __func__); + return 0; + } + + return (tdm_priv->mclk_rate > 0) ? 1 : 0; +} + +static int mtk_afe_tdm_mclk_apll_connect(struct snd_soc_dapm_widget *source, + struct snd_soc_dapm_widget *sink) +{ + struct snd_soc_dapm_widget *w = sink; + struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm); + struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt); + struct mt8186_afe_private *afe_priv = afe->platform_priv; + int dai_id = get_tdm_id_by_name(w->name); + struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai_id]; + int cur_apll; + + /* which apll */ + cur_apll = mt8186_get_apll_by_name(afe, source->name); + + return (tdm_priv->mclk_apll == cur_apll) ? 1 : 0; +} + +static int mtk_afe_tdm_hd_connect(struct snd_soc_dapm_widget *source, + struct snd_soc_dapm_widget *sink) +{ + struct snd_soc_dapm_widget *w = sink; + struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm); + struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt); + struct mt8186_afe_private *afe_priv = afe->platform_priv; + int dai_id = get_tdm_id_by_name(w->name); + struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai_id]; + + if (!tdm_priv) { + dev_err(afe->dev, "%s(), tdm_priv == NULL", __func__); + return 0; + } + + return tdm_priv->low_jitter_en; +} + +static int mtk_afe_tdm_apll_connect(struct snd_soc_dapm_widget *source, + struct snd_soc_dapm_widget *sink) +{ + struct snd_soc_dapm_widget *w = sink; + struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm); + struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt); + struct mt8186_afe_private *afe_priv = afe->platform_priv; + int dai_id = get_tdm_id_by_name(w->name); + struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai_id]; + int cur_apll; + int tdm_need_apll; + + if (!tdm_priv) { + dev_err(afe->dev, "%s(), tdm_priv == NULL", __func__); + return 0; + } + + /* which apll */ + cur_apll = mt8186_get_apll_by_name(afe, source->name); + + /* choose APLL from tdm rate */ + tdm_need_apll = mt8186_get_apll_by_rate(afe, tdm_priv->rate); + + return (tdm_need_apll == cur_apll) ? 1 : 0; +} + +/* low jitter control */ +static const char * const mt8186_tdm_hd_str[] = { + "Normal", "Low_Jitter" +}; + +static const struct soc_enum mt8186_tdm_enum[] = { + SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(mt8186_tdm_hd_str), + mt8186_tdm_hd_str), +}; + +static int mt8186_tdm_hd_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol); + struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt); + struct mt8186_afe_private *afe_priv = afe->platform_priv; + int dai_id = get_tdm_id_by_name(kcontrol->id.name); + struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai_id]; + + if (!tdm_priv) { + dev_err(afe->dev, "%s(), tdm_priv == NULL", __func__); + return -EINVAL; + } + + ucontrol->value.integer.value[0] = tdm_priv->low_jitter_en; + + return 0; +} + +static int mt8186_tdm_hd_set(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol); + struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt); + struct mt8186_afe_private *afe_priv = afe->platform_priv; + int dai_id = get_tdm_id_by_name(kcontrol->id.name); + struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai_id]; + struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; + int hd_en; + + if (ucontrol->value.enumerated.item[0] >= e->items) + return -EINVAL; + + hd_en = ucontrol->value.integer.value[0]; + + dev_dbg(afe->dev, "%s(), kcontrol name %s, hd_en %d\n", + __func__, kcontrol->id.name, hd_en); + + if (!tdm_priv) { + dev_err(afe->dev, "%s(), tdm_priv == NULL", __func__); + return -EINVAL; + } + + if (tdm_priv->low_jitter_en == hd_en) + return 0; + + tdm_priv->low_jitter_en = hd_en; + + return 1; +} + +static const struct snd_kcontrol_new mtk_dai_tdm_controls[] = { + SOC_ENUM_EXT(MTK_AFE_TDM_KCONTROL_NAME, mt8186_tdm_enum[0], + mt8186_tdm_hd_get, mt8186_tdm_hd_set), +}; + +static const struct snd_soc_dapm_route mtk_dai_tdm_routes[] = { + {"TDM IN", NULL, "aud_tdm_clk"}, + {"TDM IN", NULL, "TDM_EN"}, + {"TDM IN", NULL, TDM_HD_EN_W_NAME, mtk_afe_tdm_hd_connect}, + {TDM_HD_EN_W_NAME, NULL, APLL1_W_NAME, mtk_afe_tdm_apll_connect}, + {TDM_HD_EN_W_NAME, NULL, APLL2_W_NAME, mtk_afe_tdm_apll_connect}, + + {"TDM IN", NULL, TDM_MCLK_EN_W_NAME, mtk_afe_tdm_mclk_connect}, + {TDM_MCLK_EN_W_NAME, NULL, APLL1_W_NAME, mtk_afe_tdm_mclk_apll_connect}, + {TDM_MCLK_EN_W_NAME, NULL, APLL2_W_NAME, mtk_afe_tdm_mclk_apll_connect}, + + /* allow tdm on without codec on */ + {"TDM IN", NULL, "TDM_In_Mux"}, + {"TDM_In_Mux", "Dummy_Widget", "TDM_DUMMY_IN"}, +}; + +/* dai ops */ +static int mtk_dai_tdm_cal_mclk(struct mtk_base_afe *afe, + struct mtk_afe_tdm_priv *tdm_priv, + int freq) +{ + int apll; + int apll_rate; + + apll = mt8186_get_apll_by_rate(afe, freq); + apll_rate = mt8186_get_apll_rate(afe, apll); + + if (!freq || freq > apll_rate) { + dev_err(afe->dev, + "%s(), freq(%d Hz) invalid\n", __func__, freq); + return -EINVAL; + } + + if (apll_rate % freq != 0) { + dev_err(afe->dev, + "%s(), APLL cannot generate %d Hz", __func__, freq); + return -EINVAL; + } + + tdm_priv->mclk_rate = freq; + tdm_priv->mclk_apll = apll; + + return 0; +} + +static int mtk_dai_tdm_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 tdm_id = dai->id; + struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[tdm_id]; + unsigned int tdm_mode = tdm_priv->tdm_mode; + unsigned int data_mode = tdm_priv->data_mode; + unsigned int rate = params_rate(params); + unsigned int channels = params_channels(params); + snd_pcm_format_t format = params_format(params); + unsigned int bit_width = + snd_pcm_format_physical_width(format); + unsigned int tdm_channels = (data_mode == TDM_DATA_ONE_PIN) ? + get_tdm_ch_per_sdata(tdm_mode, channels) : 2; + unsigned int lrck_width = + get_tdm_lrck_width(format, tdm_mode); + unsigned int tdm_con = 0; + bool slave_mode = tdm_priv->slave_mode; + bool lrck_inv = tdm_priv->lck_invert; + bool bck_inv = tdm_priv->bck_invert; + unsigned int tran_rate; + unsigned int tran_relatch_rate; + + if (!tdm_priv) { + dev_err(afe->dev, "%s(), tdm_priv == NULL", __func__); + return -EINVAL; + } + + tdm_priv->rate = rate; + + tran_rate = mt8186_rate_transform(afe->dev, rate, dai->id); + tran_relatch_rate = mt8186_tdm_relatch_rate_transform(afe->dev, rate); + + /* calculate mclk_rate, if not set explicitly */ + if (!tdm_priv->mclk_rate) { + tdm_priv->mclk_rate = rate * tdm_priv->mclk_multiple; + mtk_dai_tdm_cal_mclk(afe, + tdm_priv, + tdm_priv->mclk_rate); + } + + /* ETDM_IN1_CON0 */ + tdm_con |= slave_mode << ETDM_IN1_CON0_REG_SLAVE_MODE_SFT; + tdm_con |= tdm_mode << ETDM_IN1_CON0_REG_FMT_SFT; + tdm_con |= (bit_width - 1) << ETDM_IN1_CON0_REG_BIT_LENGTH_SFT; + tdm_con |= (bit_width - 1) << ETDM_IN1_CON0_REG_WORD_LENGTH_SFT; + tdm_con |= (tdm_channels - 1) << ETDM_IN1_CON0_REG_CH_NUM_SFT; + /* need to disable sync mode otherwise this may cause latch data error */ + tdm_con |= 0 << ETDM_IN1_CON0_REG_SYNC_MODE_SFT; + /* relatch 1x en clock fix to h26m */ + tdm_con |= 0 << ETDM_IN1_CON0_REG_RELATCH_1X_EN_SEL_DOMAIN_SFT; + regmap_update_bits(afe->regmap, ETDM_IN1_CON0, ETDM_IN_CON0_CTRL_MASK, tdm_con); + + /* ETDM_IN1_CON1 */ + tdm_con = 0; + tdm_con |= 0 << ETDM_IN1_CON1_REG_LRCK_AUTO_MODE_SFT; + tdm_con |= 1 << ETDM_IN1_CON1_PINMUX_MCLK_CTRL_OE_SFT; + tdm_con |= (lrck_width - 1) << ETDM_IN1_CON1_REG_LRCK_WIDTH_SFT; + regmap_update_bits(afe->regmap, ETDM_IN1_CON1, ETDM_IN_CON1_CTRL_MASK, tdm_con); + + /* ETDM_IN1_CON3 */ + tdm_con = 0; + tdm_con = ETDM_IN_CON3_FS(tran_rate); + regmap_update_bits(afe->regmap, ETDM_IN1_CON3, ETDM_IN_CON3_CTRL_MASK, tdm_con); + + /* ETDM_IN1_CON4 */ + tdm_con = 0; + tdm_con = ETDM_IN_CON4_FS(tran_relatch_rate); + if (slave_mode) { + if (lrck_inv) + tdm_con |= ETDM_IN_CON4_CON0_SLAVE_LRCK_INV; + if (bck_inv) + tdm_con |= ETDM_IN_CON4_CON0_SLAVE_BCK_INV; + } else { + if (lrck_inv) + tdm_con |= ETDM_IN_CON4_CON0_MASTER_LRCK_INV; + if (bck_inv) + tdm_con |= ETDM_IN_CON4_CON0_MASTER_BCK_INV; + } + regmap_update_bits(afe->regmap, ETDM_IN1_CON4, ETDM_IN_CON4_CTRL_MASK, tdm_con); + + /* ETDM_IN1_CON2 */ + tdm_con = 0; + if (data_mode == TDM_DATA_MULTI_PIN) { + tdm_con |= ETDM_IN_CON2_MULTI_IP_2CH_MODE; + tdm_con |= ETDM_IN_CON2_MULTI_IP_CH(channels); + } + regmap_update_bits(afe->regmap, ETDM_IN1_CON2, ETDM_IN_CON2_CTRL_MASK, tdm_con); + + /* ETDM_IN1_CON8 */ + tdm_con = 0; + if (slave_mode) { + tdm_con |= 1 << ETDM_IN1_CON8_REG_ETDM_USE_AFIFO_SFT; + tdm_con |= 0 << ETDM_IN1_CON8_REG_AFIFO_CLOCK_DOMAIN_SEL_SFT; + tdm_con |= ETDM_IN_CON8_FS(tran_relatch_rate); + } else { + tdm_con |= 0 << ETDM_IN1_CON8_REG_ETDM_USE_AFIFO_SFT; + } + regmap_update_bits(afe->regmap, ETDM_IN1_CON8, ETDM_IN_CON8_CTRL_MASK, tdm_con); + + return 0; +} + +static int mtk_dai_tdm_set_sysclk(struct snd_soc_dai *dai, + int clk_id, unsigned int freq, int dir) +{ + struct mtk_base_afe *afe = dev_get_drvdata(dai->dev); + struct mt8186_afe_private *afe_priv = afe->platform_priv; + struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai->id]; + + if (!tdm_priv) { + dev_err(afe->dev, "%s(), tdm_priv == NULL", __func__); + return -EINVAL; + } + + if (dir != SND_SOC_CLOCK_IN) { + dev_err(afe->dev, "%s(), dir != SND_SOC_CLOCK_OUT", __func__); + return -EINVAL; + } + + dev_dbg(afe->dev, "%s(), freq %d\n", __func__, freq); + + return mtk_dai_tdm_cal_mclk(afe, tdm_priv, freq); +} + +static int mtk_dai_tdm_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + struct mtk_base_afe *afe = dev_get_drvdata(dai->dev); + struct mt8186_afe_private *afe_priv = afe->platform_priv; + struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai->id]; + + if (!tdm_priv) { + dev_err(afe->dev, "%s(), tdm_priv == NULL", __func__); + return -EINVAL; + } + + /* DAI mode*/ + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + tdm_priv->tdm_mode = TDM_IN_I2S; + tdm_priv->data_mode = TDM_DATA_MULTI_PIN; + break; + case SND_SOC_DAIFMT_LEFT_J: + tdm_priv->tdm_mode = TDM_IN_LJ; + tdm_priv->data_mode = TDM_DATA_MULTI_PIN; + break; + case SND_SOC_DAIFMT_RIGHT_J: + tdm_priv->tdm_mode = TDM_IN_RJ; + tdm_priv->data_mode = TDM_DATA_MULTI_PIN; + break; + case SND_SOC_DAIFMT_DSP_A: + tdm_priv->tdm_mode = TDM_IN_DSP_A; + tdm_priv->data_mode = TDM_DATA_ONE_PIN; + break; + case SND_SOC_DAIFMT_DSP_B: + tdm_priv->tdm_mode = TDM_IN_DSP_B; + tdm_priv->data_mode = TDM_DATA_ONE_PIN; + break; + default: + dev_err(afe->dev, "%s(), invalid DAIFMT_FORMAT_MASK", __func__); + return -EINVAL; + } + + /* DAI clock inversion*/ + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + tdm_priv->bck_invert = TDM_BCK_NON_INV; + tdm_priv->lck_invert = TDM_LCK_NON_INV; + break; + case SND_SOC_DAIFMT_NB_IF: + tdm_priv->bck_invert = TDM_BCK_NON_INV; + tdm_priv->lck_invert = TDM_LCK_INV; + break; + case SND_SOC_DAIFMT_IB_NF: + tdm_priv->bck_invert = TDM_BCK_INV; + tdm_priv->lck_invert = TDM_LCK_NON_INV; + break; + case SND_SOC_DAIFMT_IB_IF: + tdm_priv->bck_invert = TDM_BCK_INV; + tdm_priv->lck_invert = TDM_LCK_INV; + break; + default: + dev_err(afe->dev, "%s(), invalid DAIFMT_INV_MASK", __func__); + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { + case SND_SOC_DAIFMT_BP_FP: + tdm_priv->slave_mode = false; + break; + case SND_SOC_DAIFMT_BC_FC: + tdm_priv->slave_mode = true; + break; + default: + dev_err(afe->dev, "%s(), invalid DAIFMT_CLOCK_PROVIDER_MASK", + __func__); + return -EINVAL; + } + + return 0; +} + +static int mtk_dai_tdm_set_tdm_slot(struct snd_soc_dai *dai, + unsigned int tx_mask, + unsigned int rx_mask, + int slots, + int slot_width) +{ + struct mtk_base_afe *afe = dev_get_drvdata(dai->dev); + struct mt8186_afe_private *afe_priv = afe->platform_priv; + struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai->id]; + + dev_dbg(dai->dev, "%s %d slot_width %d\n", __func__, dai->id, slot_width); + + tdm_priv->lrck_width = slot_width; + + return 0; +} + +static const struct snd_soc_dai_ops mtk_dai_tdm_ops = { + .hw_params = mtk_dai_tdm_hw_params, + .set_sysclk = mtk_dai_tdm_set_sysclk, + .set_fmt = mtk_dai_tdm_set_fmt, + .set_tdm_slot = mtk_dai_tdm_set_tdm_slot, +}; + +/* dai driver */ +#define MTK_TDM_RATES (SNDRV_PCM_RATE_8000_48000 |\ + SNDRV_PCM_RATE_88200 |\ + SNDRV_PCM_RATE_96000 |\ + SNDRV_PCM_RATE_176400 |\ + SNDRV_PCM_RATE_192000) + +#define MTK_TDM_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\ + SNDRV_PCM_FMTBIT_S24_LE |\ + SNDRV_PCM_FMTBIT_S32_LE) + +static struct snd_soc_dai_driver mtk_dai_tdm_driver[] = { + { + .name = "TDM IN", + .id = MT8186_DAI_TDM_IN, + .capture = { + .stream_name = "TDM IN", + .channels_min = 2, + .channels_max = 8, + .rates = MTK_TDM_RATES, + .formats = MTK_TDM_FORMATS, + }, + .ops = &mtk_dai_tdm_ops, + }, +}; + +static struct mtk_afe_tdm_priv *init_tdm_priv_data(struct mtk_base_afe *afe) +{ + struct mtk_afe_tdm_priv *tdm_priv; + + tdm_priv = devm_kzalloc(afe->dev, sizeof(struct mtk_afe_tdm_priv), + GFP_KERNEL); + if (!tdm_priv) + return NULL; + + tdm_priv->mclk_multiple = 512; + tdm_priv->mclk_id = MT8186_TDM_MCK; + tdm_priv->id = MT8186_DAI_TDM_IN; + + return tdm_priv; +} + +int mt8186_dai_tdm_register(struct mtk_base_afe *afe) +{ + struct mt8186_afe_private *afe_priv = afe->platform_priv; + struct mtk_afe_tdm_priv *tdm_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_tdm_driver; + dai->num_dai_drivers = ARRAY_SIZE(mtk_dai_tdm_driver); + + dai->controls = mtk_dai_tdm_controls; + dai->num_controls = ARRAY_SIZE(mtk_dai_tdm_controls); + dai->dapm_widgets = mtk_dai_tdm_widgets; + dai->num_dapm_widgets = ARRAY_SIZE(mtk_dai_tdm_widgets); + dai->dapm_routes = mtk_dai_tdm_routes; + dai->num_dapm_routes = ARRAY_SIZE(mtk_dai_tdm_routes); + + tdm_priv = init_tdm_priv_data(afe); + if (!tdm_priv) + return -ENOMEM; + + afe_priv->dai_priv[MT8186_DAI_TDM_IN] = tdm_priv; + + return 0; +} |