[PATCH v5 10/20] ASoC: mediatek: mt8186: support tdm in platform driver

Jiaxin Yu
2022-05-23T13:29:49Z

Add mt8186 tdm dai driver.

Signed-off-by: Jiaxin Yu <jiaxin.yu@mediatek.com>
---
sound/soc/mediatek/mt8186/mt8186-dai-tdm.c | 698 +++++++++++++++++++++
1 file changed, 698 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..dfff209b60da
--- /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_CBP_CFP:
+ tdm_priv->slave_mode = false;
+ break;
+ case SND_SOC_DAIFMT_CBC_CFC:
+ 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;
+}
--
2.18.0