Message-ID: <20220211103818.8266-10-jiaxin.yu@mediatek.com>
Date:   Fri, 11 Feb 2022 18:38:12 +0800
From:   Jiaxin Yu <jiaxin.yu@...iatek.com>
To:     <broonie@...nel.org>, <lgirdwood@...il.com>, <tiwai@...e.com>,
        <robh+dt@...nel.org>, <matthias.bgg@...il.com>, <perex@...ex.cz>,
        <p.zabel@...gutronix.de>, <geert+renesas@...der.be>
CC:     <trevor.wu@...iatek.com>, <tzungbi@...gle.com>,
        <zhangqilong3@...wei.com>, <alsa-devel@...a-project.org>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, Jiaxin Yu <jiaxin.yu@...iatek.com>
Subject: [PATCH 09/15] ASoC: mediatek: mt8186: support tdm in platform driver

This patch adds mt8186 tdm dai driver.

Signed-off-by: Jiaxin Yu <jiaxin.yu@...iatek.com>
---
 sound/soc/mediatek/mt8186/mt8186-dai-tdm.c | 723 +++++++++++++++++++++
 1 file changed, 723 insertions(+)
 create mode 100644 sound/soc/mediatek/mt8186/mt8186-dai-tdm.c

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..07f3ffac07f9
--- /dev/null
+++ b/sound/soc/mediatek/mt8186/mt8186-dai-tdm.c
@@ -0,0 +1,723 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  MediaTek ALSA SoC Audio DAI TDM Control
+ *
+ *  Copyright (c) 2022 MediaTek Inc.
+ *  Author: Jiaxin Yu <jiaxin.yu@...iatek.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;
+	else
+		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;
+	else
+		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);
+	else
+		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_info(afe->dev, "%s(), tdm_priv == NULL", __func__);
+		return -EINVAL;
+	}
+
+	dev_info(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_info(afe->dev, "%s(), tdm_priv == NULL", __func__);
+		return -EINVAL;
+	}
+
+	dev_info(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;
+}
+
+static int mtk_tdm_hd_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);
+
+	dev_info(cmpnt->dev, "%s(), name %s, event 0x%x\n",
+		 __func__, w->name, event);
+
+	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, mtk_tdm_hd_en_event,
+			      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_info(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_info(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_info(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_info(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_info(afe->dev, "%s(), kcontrol name %s, hd_en %d\n",
+		 __func__, kcontrol->id.name, hd_en);
+
+	if (!tdm_priv) {
+		dev_info(afe->dev, "%s(), tdm_priv == NULL", __func__);
+		return -EINVAL;
+	}
+
+	tdm_priv->low_jitter_en = hd_en;
+
+	return 0;
+}
+
+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_info(afe->dev,
+			 "%s(), freq(%d Hz) invalid\n", __func__, freq);
+		return -EINVAL;
+	}
+
+	if (apll_rate % freq != 0) {
+		dev_info(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 ctrl_reg;
+	unsigned int ctrl_mask;
+	unsigned int tran_rate;
+	unsigned int tran_relatch_rate;
+
+	if (tdm_priv)
+		tdm_priv->rate = rate;
+	else
+		dev_info(afe->dev, "%s(), tdm_priv == NULL", __func__);
+
+	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;
+	/* default disable sync mode */
+	tdm_con |= 0 << ETDM_IN1_CON0_REG_SYNC_MODE_SFT;
+	/* relatch fix to h26m */
+	tdm_con |= 0 << ETDM_IN1_CON0_REG_RELATCH_1X_EN_SEL_DOMAIN_SFT;
+
+	ctrl_reg = ETDM_IN1_CON0;
+	ctrl_mask = ETDM_IN_CON0_CTRL_MASK;
+	regmap_update_bits(afe->regmap, ctrl_reg, 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;
+
+	ctrl_reg = ETDM_IN1_CON1;
+	ctrl_mask = ETDM_IN_CON1_CTRL_MASK;
+	regmap_update_bits(afe->regmap, ctrl_reg, ctrl_mask, tdm_con);
+
+	/* ETDM_IN1_CON3 */
+	tdm_con = 0;
+	tdm_con = ETDM_IN_CON3_FS(tran_rate);
+
+	ctrl_reg = ETDM_IN1_CON3;
+	ctrl_mask = ETDM_IN_CON3_CTRL_MASK;
+	regmap_update_bits(afe->regmap, ctrl_reg, 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;
+	}
+
+	ctrl_reg = ETDM_IN1_CON4;
+	ctrl_mask = ETDM_IN_CON4_CTRL_MASK;
+	regmap_update_bits(afe->regmap, ctrl_reg, 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);
+	}
+
+	ctrl_reg = ETDM_IN1_CON2;
+	ctrl_mask = ETDM_IN_CON2_CTRL_MASK;
+	regmap_update_bits(afe->regmap, ctrl_reg, 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;
+	}
+
+	ctrl_reg = ETDM_IN1_CON8;
+	ctrl_mask = ETDM_IN_CON8_CTRL_MASK;
+	regmap_update_bits(afe->regmap, ctrl_reg, 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_info(afe->dev, "%s(), tdm_priv == NULL", __func__);
+		return -EINVAL;
+	}
+
+	if (dir != SND_SOC_CLOCK_IN) {
+		dev_info(afe->dev, "%s(), dir != SND_SOC_CLOCK_OUT", __func__);
+		return -EINVAL;
+	}
+
+	dev_info(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_info(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:
+		tdm_priv->tdm_mode = TDM_IN_I2S;
+		tdm_priv->data_mode = TDM_DATA_MULTI_PIN;
+	}
+
+	/* 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:
+	default:
+		tdm_priv->bck_invert = TDM_BCK_INV;
+		tdm_priv->lck_invert = TDM_LCK_INV;
+		break;
+	}
+
+	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+	case SND_SOC_DAIFMT_CBM_CFM:
+		tdm_priv->slave_mode = false;
+		break;
+	case SND_SOC_DAIFMT_CBS_CFS:
+		tdm_priv->slave_mode = true;
+		break;
+	default:
+		tdm_priv->slave_mode = false;
+		break;
+	}
+
+	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;
+}
-- 
2.18.0

Powered by blists - more mailing lists