// SPDX-License-Identifier: GPL-2.0
//
// MediaTek ALSA SoC Audio DAI TDM Control
//
// Copyright (c) 2018 MediaTek Inc.
// Author: KaiChieh Chuang <kaichieh.chuang@mediatek.com>
#include <linux/regmap.h>
#include <sound/pcm_params.h>
#include "mt8183-afe-clk.h"
#include "mt8183-afe-common.h"
#include "mt8183-interconnection.h"
#include "mt8183-reg.h"
struct mtk_afe_tdm_priv {
int bck_id;
int bck_rate;
int tdm_out_mode;
int bck_invert;
int lck_invert;
int mclk_id;
int mclk_multiple; /* according to sample rate */
int mclk_rate;
int mclk_apll;
};
enum {
TDM_OUT_I2S = 0,
TDM_OUT_TDM = 1,
};
enum {
TDM_BCK_NON_INV = 0,
TDM_BCK_INV = 1,
};
enum {
TDM_LCK_NON_INV = 0,
TDM_LCK_INV = 1,
};
enum {
TDM_WLEN_16_BIT = 1,
TDM_WLEN_32_BIT = 2,
};
enum {
TDM_CHANNEL_BCK_16 = 0,
TDM_CHANNEL_BCK_24 = 1,
TDM_CHANNEL_BCK_32 = 2,
};
enum {
TDM_CHANNEL_NUM_2 = 0,
TDM_CHANNEL_NUM_4 = 1,
TDM_CHANNEL_NUM_8 = 2,
};
enum {
TDM_CH_START_O30_O31 = 0,
TDM_CH_START_O32_O33,
TDM_CH_START_O34_O35,
TDM_CH_START_O36_O37,
TDM_CH_ZERO,
};
enum {
HDMI_BIT_WIDTH_16_BIT = 0,
HDMI_BIT_WIDTH_32_BIT = 1,
};
static unsigned int get_hdmi_wlen(snd_pcm_format_t format)
{
return snd_pcm_format_physical_width(format) <= 16 ?
HDMI_BIT_WIDTH_16_BIT : HDMI_BIT_WIDTH_32_BIT;
}
static unsigned int get_tdm_wlen(snd_pcm_format_t format)
{
return snd_pcm_format_physical_width(format) <= 16 ?
TDM_WLEN_16_BIT : TDM_WLEN_32_BIT;
}
static unsigned int get_tdm_channel_bck(snd_pcm_format_t format)
{
return snd_pcm_format_physical_width(format) <= 16 ?
TDM_CHANNEL_BCK_16 : TDM_CHANNEL_BCK_32;
}
static unsigned int get_tdm_lrck_width(snd_pcm_format_t format)
{
return snd_pcm_format_physical_width(format) - 1;
}
static unsigned int get_tdm_ch(unsigned int ch)
{
switch (ch) {
case 1:
case 2:
return TDM_CHANNEL_NUM_2;
case 3:
case 4:
return TDM_CHANNEL_NUM_4;
case 5:
case 6:
case 7:
case 8:
default:
return TDM_CHANNEL_NUM_8;
}
}
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_OUT_TDM)
return get_tdm_ch_fixup(channels);
else
return 2;
}
/* interconnection */
enum {
HDMI_CONN_CH0 = 0,
HDMI_CONN_CH1,
HDMI_CONN_CH2,
HDMI_CONN_CH3,
HDMI_CONN_CH4,
HDMI_CONN_CH5,
HDMI_CONN_CH6,
HDMI_CONN_CH7,
};
static const char *const hdmi_conn_mux_map[] = {
"CH0", "CH1", "CH2", "CH3",
"CH4", "CH5", "CH6", "CH7",
};
static int hdmi_conn_mux_map_value[] = {
HDMI_CONN_CH0,
HDMI_CONN_CH1,
HDMI_CONN_CH2,
HDMI_CONN_CH3,
HDMI_CONN_CH4,
HDMI_CONN_CH5,
HDMI_CONN_CH6,
HDMI_CONN_CH7,
};
static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch0_mux_map_enum,
AFE_HDMI_CONN0,
HDMI_O_0_SFT,
HDMI_O_0_MASK,
hdmi_conn_mux_map,
hdmi_conn_mux_map_value);
static const struct snd_kcontrol_new hdmi_ch0_mux_control =
SOC_DAPM_ENUM("HDMI_CH0_MUX", hdmi_ch0_mux_map_enum);
static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch1_mux_map_enum,
AFE_HDMI_CONN0,
HDMI_O_1_SFT,
HDMI_O_1_MASK,
hdmi_conn_mux_map,
hdmi_conn_mux_map_value);
static const struct snd_kcontrol_new hdmi_ch1_mux_control =
SOC_DAPM_ENUM("HDMI_CH1_MUX", hdmi_ch1_mux_map_enum);
static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch2_mux_map_enum,
AFE_HDMI_CONN0,
HDMI_O_2_SFT,
HDMI_O_2_MASK,
hdmi_conn_mux_map,
hdmi_conn_mux_map_value);
static const struct snd_kcontrol_new hdmi_ch2_mux_control =
SOC_DAPM_ENUM("HDMI_CH2_MUX", hdmi_ch2_mux_map_enum);
static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch3_mux_map_enum,
AFE_HDMI_CONN0,
HDMI_O_3_SFT,
HDMI_O_3_MASK,
hdmi_conn_mux_map,
hdmi_conn_mux_map_value);
static const struct snd_kcontrol_new hdmi_ch3_mux_control =
SOC_DAPM_ENUM("HDMI_CH3_MUX", hdmi_ch3_mux_map_enum);
static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch4_mux_map_enum,
AFE_HDMI_CONN0,
HDMI_O_4_SFT,
HDMI_O_4_MASK,
hdmi_conn_mux_map,
hdmi_conn_mux_map_value);
static const struct snd_kcontrol_new hdmi_ch4_mux_control =
SOC_DAPM_ENUM("HDMI_CH4_MUX", hdmi_ch4_mux_map_enum);
static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch5_mux_map_enum,
AFE_HDMI_CONN0,
HDMI_O_5_SFT,
HDMI_O_5_MASK,
hdmi_conn_mux_map,
hdmi_conn_mux_map_value);
static const struct snd_kcontrol_new hdmi_ch5_mux_control =
SOC_DAPM_ENUM("HDMI_CH5_MUX", hdmi_ch5_mux_map_enum);
static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch6_mux_map_enum,
AFE_HDMI_CONN0,
HDMI_O_6_SFT,
HDMI_O_6_MASK,
hdmi_conn_mux_map,
hdmi_conn_mux_map_value);
static const struct snd_kcontrol_new hdmi_ch6_mux_control =
SOC_DAPM_ENUM("HDMI_CH6_MUX", hdmi_ch6_mux_map_enum);
static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch7_mux_map_enum,
AFE_HDMI_CONN0,
HDMI_O_7_SFT,
HDMI_O_7_MASK,
hdmi_conn_mux_map,
hdmi_conn_mux_map_value);
static const struct snd_kcontrol_new hdmi_ch7_mux_control =
SOC_DAPM_ENUM("HDMI_CH7_MUX", hdmi_ch7_mux_map_enum);
enum {
SUPPLY_SEQ_APLL,
SUPPLY_SEQ_TDM_MCK_EN,
SUPPLY_SEQ_TDM_BCK_EN,
};
static int mtk_tdm_bck_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 mt8183_afe_private *afe_priv = afe->platform_priv;
struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[MT8183_DAI_TDM];
dev_info(cmpnt->dev, "%s(), name %s, event 0x%x\n",
__func__, w->name, event);
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
mt8183_mck_enable(afe, tdm_priv->bck_id, tdm_priv->bck_rate);
break;
case SND_SOC_DAPM_POST_PMD:
mt8183_mck_disable(afe, tdm_priv->bck_id);
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 mt8183_afe_private *afe_priv = afe->platform_priv;
struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[MT8183_DAI_TDM];
dev_info(cmpnt->dev, "%s(), name %s, event 0x%x\n",
__func__, w->name, event);
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
mt8183_mck_enable(afe, tdm_priv->mclk_id, tdm_priv->mclk_rate);
break;
case SND_SOC_DAPM_POST_PMD:
tdm_priv->mclk_rate = 0;
mt8183_mck_disable(afe, tdm_priv->mclk_id);
break;
default:
break;
}
return 0;
}
static const struct snd_soc_dapm_widget mtk_dai_tdm_widgets[] = {
SND_SOC_DAPM_MUX("HDMI_CH0_MUX", SND_SOC_NOPM, 0, 0,
&hdmi_ch0_mux_control),
SND_SOC_DAPM_MUX("HDMI_CH1_MUX", SND_SOC_NOPM, 0, 0,
&hdmi_ch1_mux_control),
SND_SOC_DAPM_MUX("HDMI_CH2_MUX", SND_SOC_NOPM, 0, 0,
&hdmi_ch2_mux_control),
SND_SOC_DAPM_MUX("HDMI_CH3_MUX", SND_SOC_NOPM, 0, 0,
&hdmi_ch3_mux_control),
SND_SOC_DAPM_MUX("HDMI_CH4_MUX", SND_SOC_NOPM, 0, 0,
&hdmi_ch4_mux_control),
SND_SOC_DAPM_MUX("HDMI_CH5_MUX", SND_SOC_NOPM, 0, 0,
&hdmi_ch5_mux_control),
SND_SOC_DAPM_MUX("HDMI_CH6_MUX", SND_SOC_NOPM, 0, 0,
&hdmi_ch6_mux_control),
SND_SOC_DAPM_MUX("HDMI_CH7_MUX", SND_SOC_NOPM, 0, 0,
&hdmi_ch7_mux_control),
SND_SOC_DAPM_CLOCK_SUPPLY("aud_tdm_clk"),
SND_SOC_DAPM_SUPPLY_S("TDM_BCK", SUPPLY_SEQ_TDM_BCK_EN,
SND_SOC_NOPM, 0, 0,
mtk_tdm_bck_en_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_SUPPLY_S("TDM_MCK", 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),
};
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 mt8183_afe_private *afe_priv = afe->platform_priv;
struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[MT8183_DAI_TDM];
int cur_apll;
/* which apll */
cur_apll = mt8183_get_apll_by_name(afe, source->name);
return (tdm_priv->mclk_apll == cur_apll) ? 1 : 0;
}
static const struct snd_soc_dapm_route mtk_dai_tdm_routes[] = {
{"HDMI_CH0_MUX", "CH0", "HDMI"},
{"HDMI_CH0_MUX", "CH1", "HDMI"},
{"HDMI_CH0_MUX", "CH2", "HDMI"},
{"HDMI_CH0_MUX", "CH3", "HDMI"},
{"HDMI_CH0_MUX", "CH4", "HDMI"},
{"HDMI_CH0_MUX", "CH5", "HDMI"},
{"HDMI_CH0_MUX", "CH6", "HDMI"},
{"HDMI_CH0_MUX", "CH7", "HDMI"},
{"HDMI_CH1_MUX", "CH0", "HDMI"},
{"HDMI_CH1_MUX", "CH1", "HDMI"},
{"HDMI_CH1_MUX", "CH2", "HDMI"},
{"HDMI_CH1_MUX", "CH3", "HDMI"},
{"HDMI_CH1_MUX", "CH4", "HDMI"},
{"HDMI_CH1_MUX", "CH5", "HDMI"},
{"HDMI_CH1_MUX", "CH6", "HDMI"},
{"HDMI_CH1_MUX", "CH7", "HDMI"},
{"HDMI_CH2_MUX", "CH0", "HDMI"},
{"HDMI_CH2_MUX", "CH1", "HDMI"},
{"HDMI_CH2_MUX", "CH2", "HDMI"},
{"HDMI_CH2_MUX", "CH3", "HDMI"},
{"HDMI_CH2_MUX", "CH4", "HDMI"},
{"HDMI_CH2_MUX", "CH5", "HDMI"},
{"HDMI_CH2_MUX", "CH6", "HDMI"},
{"HDMI_CH2_MUX", "CH7", "HDMI"},
{"HDMI_CH3_MUX", "CH0", "HDMI"},
{"HDMI_CH3_MUX", "CH1", "HDMI"},
{"HDMI_CH3_MUX", "CH2", "HDMI"},
{"HDMI_CH3_MUX", "CH3", "HDMI"},
{"HDMI_CH3_MUX", "CH4", "HDMI"},
{"HDMI_CH3_MUX", "CH5", "HDMI"},
{"HDMI_CH3_MUX", "CH6", "HDMI"},
{"HDMI_CH3_MUX", "CH7", "HDMI"},
{"HDMI_CH4_MUX", "CH0", "HDMI"},
{"HDMI_CH4_MUX", "CH1", "HDMI"},
{"HDMI_CH4_MUX", "CH2", "HDMI"},
{"HDMI_CH4_MUX", "CH3", "HDMI"},
{"HDMI_CH4_MUX", "CH4", "HDMI"},
{"HDMI_CH4_MUX", "CH5", "HDMI"},
{"HDMI_CH4_MUX", "CH6", "HDMI"},
{"HDMI_CH4_MUX", "CH7", "HDMI"},
{"HDMI_CH5_MUX", "CH0", "HDMI"},
{"HDMI_CH5_MUX", "CH1", "HDMI"},
{"HDMI_CH5_MUX", "CH2", "HDMI"},
{"HDMI_CH5_MUX", "CH3", "HDMI"},
{"HDMI_CH5_MUX", "CH4", "HDMI"},
{"HDMI_CH5_MUX", "CH5", "HDMI"},
{"HDMI_CH5_MUX", "CH6", "HDMI"},
{"HDMI_CH5_MUX", "CH7", "HDMI"},
{"HDMI_CH6_MUX", "CH0", "HDMI"},
{"HDMI_CH6_MUX", "CH1", "HDMI"},
{"HDMI_CH6_MUX", "CH2", "HDMI"},
{"HDMI_CH6_MUX", "CH3", "HDMI"},
{"HDMI_CH6_MUX", "CH4", "HDMI"},
{"HDMI_CH6_MUX", "CH5", "HDMI"},
{"HDMI_CH6_MUX", "CH6", "HDMI"},
{"HDMI_CH6_MUX", "CH7", "HDMI"},
{"HDMI_CH7_MUX", "CH0", "HDMI"},
{"HDMI_CH7_MUX", "CH1", "HDMI"},
{"HDMI_CH7_MUX", "CH2", "HDMI"},
{"HDMI_CH7_MUX", "CH3", "HDMI"},
{"HDMI_CH7_MUX", "CH4", "HDMI"},
{"HDMI_CH7_MUX", "CH5", "HDMI"},
{"HDMI_CH7_MUX", "CH6", "HDMI"},
{"HDMI_CH7_MUX", "CH7", "HDMI"},
{"TDM", NULL, "HDMI_CH0_MUX"},
{"TDM", NULL, "HDMI_CH1_MUX"},
{"TDM", NULL, "HDMI_CH2_MUX"},
{"TDM", NULL, "HDMI_CH3_MUX"},
{"TDM", NULL, "HDMI_CH4_MUX"},
{"TDM", NULL, "HDMI_CH5_MUX"},
{"TDM", NULL, "HDMI_CH6_MUX"},
{"TDM", NULL, "HDMI_CH7_MUX"},
{"TDM", NULL, "aud_tdm_clk"},
{"TDM", NULL, "TDM_BCK"},
{"TDM_BCK", NULL, "TDM_MCK"},
{"TDM_MCK", NULL, APLL1_W_NAME, mtk_afe_tdm_apll_connect},
{"TDM_MCK", NULL, APLL2_W_NAME, mtk_afe_tdm_apll_connect},
};
/* 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 = mt8183_get_apll_by_rate(afe, freq);
apll_rate = mt8183_get_apll_rate(afe, apll);
if (!freq || freq > apll_rate) {
dev_warn(afe->dev,
"%s(), freq(%d Hz) invalid\n", __func__, freq);
return -EINVAL;
}
if (apll_rate % freq != 0) {
dev_warn(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 mt8183_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_out_mode = tdm_priv->tdm_out_mode;
unsigned int rate = params_rate(params);
unsigned int channels = params_channels(params);
unsigned int out_channels_per_sdata =
get_tdm_ch_per_sdata(tdm_out_mode, channels);
snd_pcm_format_t format = params_format(params);
unsigned int tdm_con = 0;
/* 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);
}
/* calculate bck */
tdm_priv->bck_rate = rate *
out_channels_per_sdata *
snd_pcm_format_physical_width(format);
if (tdm_priv->bck_rate > tdm_priv->mclk_rate)
dev_warn(afe->dev, "%s(), bck_rate > mclk_rate rate", __func__);
if (tdm_priv->mclk_rate % tdm_priv->bck_rate != 0)
dev_warn(afe->dev, "%s(), bck cannot generate", __func__);
dev_info(afe->dev, "%s(), id %d, rate %d, channels %d, format %d, mclk_rate %d, bck_rate %d\n",
__func__,
tdm_id, rate, channels, format,
tdm_priv->mclk_rate, tdm_priv->bck_rate);
dev_info(afe->dev, "%s(), out_channels_per_sdata = %d\n",
__func__, out_channels_per_sdata);
/* set tdm */
if (tdm_priv->bck_invert)
regmap_update_bits(afe->regmap, AUDIO_TOP_CON3,
BCK_INVERSE_MASK_SFT,
0x1 << BCK_INVERSE_SFT);
if (tdm_priv->lck_invert)
tdm_con |= 1 << LRCK_INVERSE_SFT;
if (tdm_priv->tdm_out_mode == TDM_OUT_I2S) {
tdm_con |= 1 << DELAY_DATA_SFT;
tdm_con |= get_tdm_lrck_width(format) << LRCK_TDM_WIDTH_SFT;
} else if (tdm_priv->tdm_out_mode == TDM_OUT_TDM) {
tdm_con |= 0 << DELAY_DATA_SFT;
tdm_con |= 0 << LRCK_TDM_WIDTH_SFT;
}
tdm_con |= 1 << LEFT_ALIGN_SFT;
tdm_con |= get_tdm_wlen(format) << WLEN_SFT;
tdm_con |= get_tdm_ch(out_channels_per_sdata) << CHANNEL_NUM_SFT;
tdm_con |= get_tdm_channel_bck(format) << CHANNEL_BCK_CYCLES_SFT;
regmap_write(afe->regmap, AFE_TDM_CON1, tdm_con);
if (out_channels_per_sdata == 2) {
switch (channels) {
case 1:
case 2:
tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT;
tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT1_SFT;
tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT2_SFT;
tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT3_SFT;
break;
case 3:
case 4:
tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT;
tdm_con |= TDM_CH_START_O32_O33 << ST_CH_PAIR_SOUT1_SFT;
tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT2_SFT;
tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT3_SFT;
break;
case 5:
case 6:
tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT;
tdm_con |= TDM_CH_START_O32_O33 << ST_CH_PAIR_SOUT1_SFT;
tdm_con |= TDM_CH_START_O34_O35 << ST_CH_PAIR_SOUT2_SFT;
tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT3_SFT;
break;
case 7:
case 8:
tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT;
tdm_con |= TDM_CH_START_O32_O33 << ST_CH_PAIR_SOUT1_SFT;
tdm_con |= TDM_CH_START_O34_O35 << ST_CH_PAIR_SOUT2_SFT;
tdm_con |= TDM_CH_START_O36_O37 << ST_CH_PAIR_SOUT3_SFT;
break;
default:
tdm_con = 0;
}
} else {
tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT;
tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT1_SFT;
tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT2_SFT;
tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT3_SFT;
}
regmap_write(afe->regmap, AFE_TDM_CON2, tdm_con);
regmap_update_bits(afe->regmap, AFE_HDMI_OUT_CON0,
AFE_HDMI_OUT_CH_NUM_MASK_SFT,
channels << AFE_HDMI_OUT_CH_NUM_SFT);
regmap_update_bits(afe->regmap, AFE_HDMI_OUT_CON0,
AFE_HDMI_OUT_BIT_WIDTH_MASK_SFT,
get_hdmi_wlen(format) << AFE_HDMI_OUT_BIT_WIDTH_SFT);
return 0;
}
static int mtk_dai_tdm_trigger(struct snd_pcm_substream *substream,
int cmd,
struct snd_soc_dai *dai)
{
struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
/* enable Out control */
regmap_update_bits(afe->regmap, AFE_HDMI_OUT_CON0,
AFE_HDMI_OUT_ON_MASK_SFT,
0x1 << AFE_HDMI_OUT_ON_SFT);
/* enable tdm */
regmap_update_bits(afe->regmap, AFE_TDM_CON1,
TDM_EN_MASK_SFT, 0x1 << TDM_EN_SFT);
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
/* disable tdm */
regmap_update_bits(afe->regmap, AFE_TDM_CON1,
TDM_EN_MASK_SFT, 0);
/* disable Out control */
regmap_update_bits(afe->regmap, AFE_HDMI_OUT_CON0,
AFE_HDMI_OUT_ON_MASK_SFT,
0);
break;
default:
return -EINVAL;
}
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 mt8183_afe_private *afe_priv = afe->platform_priv;
struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai->id];
if (!tdm_priv) {
dev_warn(afe->dev, "%s(), tdm_priv == NULL", __func__);
return -EINVAL;
}
if (dir != SND_SOC_CLOCK_OUT) {
dev_warn(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 mt8183_afe_private *afe_priv = afe->platform_priv;
struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai->id];
if (!tdm_priv) {
dev_warn(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_out_mode = TDM_OUT_I2S;
break;
case SND_SOC_DAIFMT_DSP_A:
tdm_priv->tdm_out_mode = TDM_OUT_TDM;
break;
default:
tdm_priv->tdm_out_mode = TDM_OUT_I2S;
}
/* 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;
}
return 0;
}
static const struct snd_soc_dai_ops mtk_dai_tdm_ops = {
.hw_params = mtk_dai_tdm_hw_params,
.trigger = mtk_dai_tdm_trigger,
.set_sysclk = mtk_dai_tdm_set_sysclk,
.set_fmt = mtk_dai_tdm_set_fmt,
};
/* 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",
.id = MT8183_DAI_TDM,
.playback = {
.stream_name = "TDM",
.channels_min = 2,
.channels_max = 8,
.rates = MTK_TDM_RATES,
.formats = MTK_TDM_FORMATS,
},
.ops = &mtk_dai_tdm_ops,
},
};
int mt8183_dai_tdm_register(struct mtk_base_afe *afe)
{
struct mt8183_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->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 = devm_kzalloc(afe->dev, sizeof(struct mtk_afe_tdm_priv),
GFP_KERNEL);
if (!tdm_priv)
return -ENOMEM;
tdm_priv->mclk_multiple = 128;
tdm_priv->bck_id = MT8183_I2S4_BCK;
tdm_priv->mclk_id = MT8183_I2S4_MCK;
afe_priv->dai_priv[MT8183_DAI_TDM] = tdm_priv;
return 0;
}