sound/soc/mediatek/mt8183/mt8183-dai-adda.c - linux - Git at Google

 // SPDX-License-Identifier: GPL-2.0
 //
 // MediaTek ALSA SoC Audio DAI ADDA Control
 //
 // Copyright (c) 2018 MediaTek Inc.
 // Author: KaiChieh Chuang <kaichieh.chuang@mediatek.com>

 #include <linux/regmap.h>
 #include <linux/delay.h>
 #include "mt8183-afe-common.h"
 #include "mt8183-interconnection.h"
 #include "mt8183-reg.h"

 enum {
 	AUDIO_SDM_LEVEL_MUTE = 0,
 	AUDIO_SDM_LEVEL_NORMAL = 0x1d,
 	/* if you change level normal */
 	/* you need to change formula of hp impedance and dc trim too */
 };

 enum {
 	DELAY_DATA_MISO1 = 0,
 	DELAY_DATA_MISO2,
 };

 enum {
 	MTK_AFE_ADDA_DL_RATE_8K = 0,
 	MTK_AFE_ADDA_DL_RATE_11K = 1,
 	MTK_AFE_ADDA_DL_RATE_12K = 2,
 	MTK_AFE_ADDA_DL_RATE_16K = 3,
 	MTK_AFE_ADDA_DL_RATE_22K = 4,
 	MTK_AFE_ADDA_DL_RATE_24K = 5,
 	MTK_AFE_ADDA_DL_RATE_32K = 6,
 	MTK_AFE_ADDA_DL_RATE_44K = 7,
 	MTK_AFE_ADDA_DL_RATE_48K = 8,
 	MTK_AFE_ADDA_DL_RATE_96K = 9,
 	MTK_AFE_ADDA_DL_RATE_192K = 10,
 };

 enum {
 	MTK_AFE_ADDA_UL_RATE_8K = 0,
 	MTK_AFE_ADDA_UL_RATE_16K = 1,
 	MTK_AFE_ADDA_UL_RATE_32K = 2,
 	MTK_AFE_ADDA_UL_RATE_48K = 3,
 	MTK_AFE_ADDA_UL_RATE_96K = 4,
 	MTK_AFE_ADDA_UL_RATE_192K = 5,
 	MTK_AFE_ADDA_UL_RATE_48K_HD = 6,
 };

 static unsigned int adda_dl_rate_transform(struct mtk_base_afe *afe,
 					   unsigned int rate)
 {
 	switch (rate) {
 	case 8000:
 		return MTK_AFE_ADDA_DL_RATE_8K;
 	case 11025:
 		return MTK_AFE_ADDA_DL_RATE_11K;
 	case 12000:
 		return MTK_AFE_ADDA_DL_RATE_12K;
 	case 16000:
 		return MTK_AFE_ADDA_DL_RATE_16K;
 	case 22050:
 		return MTK_AFE_ADDA_DL_RATE_22K;
 	case 24000:
 		return MTK_AFE_ADDA_DL_RATE_24K;
 	case 32000:
 		return MTK_AFE_ADDA_DL_RATE_32K;
 	case 44100:
 		return MTK_AFE_ADDA_DL_RATE_44K;
 	case 48000:
 		return MTK_AFE_ADDA_DL_RATE_48K;
 	case 96000:
 		return MTK_AFE_ADDA_DL_RATE_96K;
 	case 192000:
 		return MTK_AFE_ADDA_DL_RATE_192K;
 	default:
 		dev_warn(afe->dev, "%s(), rate %d invalid, use 48kHz!!!\n",
 			 __func__, rate);
 		return MTK_AFE_ADDA_DL_RATE_48K;
 	}
 }

 static unsigned int adda_ul_rate_transform(struct mtk_base_afe *afe,
 					   unsigned int rate)
 {
 	switch (rate) {
 	case 8000:
 		return MTK_AFE_ADDA_UL_RATE_8K;
 	case 16000:
 		return MTK_AFE_ADDA_UL_RATE_16K;
 	case 32000:
 		return MTK_AFE_ADDA_UL_RATE_32K;
 	case 48000:
 		return MTK_AFE_ADDA_UL_RATE_48K;
 	case 96000:
 		return MTK_AFE_ADDA_UL_RATE_96K;
 	case 192000:
 		return MTK_AFE_ADDA_UL_RATE_192K;
 	default:
 		dev_warn(afe->dev, "%s(), rate %d invalid, use 48kHz!!!\n",
 			 __func__, rate);
 		return MTK_AFE_ADDA_UL_RATE_48K;
 	}
 }

 /* dai component */
 static const struct snd_kcontrol_new mtk_adda_dl_ch1_mix[] = {
 	SOC_DAPM_SINGLE_AUTODISABLE("DL1_CH1", AFE_CONN3, I_DL1_CH1, 1, 0),
 	SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH1", AFE_CONN3, I_DL2_CH1, 1, 0),
 	SOC_DAPM_SINGLE_AUTODISABLE("DL3_CH1", AFE_CONN3, I_DL3_CH1, 1, 0),
 	SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2", AFE_CONN3,
 				    I_ADDA_UL_CH2, 1, 0),
 	SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1", AFE_CONN3,
 				    I_ADDA_UL_CH1, 1, 0),
 	SOC_DAPM_SINGLE_AUTODISABLE("PCM_1_CAP_CH1", AFE_CONN3,
 				    I_PCM_1_CAP_CH1, 1, 0),
 	SOC_DAPM_SINGLE_AUTODISABLE("PCM_2_CAP_CH1", AFE_CONN3,
 				    I_PCM_2_CAP_CH1, 1, 0),
 };

 static const struct snd_kcontrol_new mtk_adda_dl_ch2_mix[] = {
 	SOC_DAPM_SINGLE_AUTODISABLE("DL1_CH1", AFE_CONN4, I_DL1_CH1, 1, 0),
 	SOC_DAPM_SINGLE_AUTODISABLE("DL1_CH2", AFE_CONN4, I_DL1_CH2, 1, 0),
 	SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH1", AFE_CONN4, I_DL2_CH1, 1, 0),
 	SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH2", AFE_CONN4, I_DL2_CH2, 1, 0),
 	SOC_DAPM_SINGLE_AUTODISABLE("DL3_CH1", AFE_CONN4, I_DL3_CH1, 1, 0),
 	SOC_DAPM_SINGLE_AUTODISABLE("DL3_CH2", AFE_CONN4, I_DL3_CH2, 1, 0),
 	SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2", AFE_CONN4,
 				    I_ADDA_UL_CH2, 1, 0),
 	SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1", AFE_CONN4,
 				    I_ADDA_UL_CH1, 1, 0),
 	SOC_DAPM_SINGLE_AUTODISABLE("PCM_1_CAP_CH1", AFE_CONN4,
 				    I_PCM_1_CAP_CH1, 1, 0),
 	SOC_DAPM_SINGLE_AUTODISABLE("PCM_2_CAP_CH1", AFE_CONN4,
 				    I_PCM_2_CAP_CH1, 1, 0),
 	SOC_DAPM_SINGLE_AUTODISABLE("PCM_1_CAP_CH2", AFE_CONN4,
 				    I_PCM_1_CAP_CH2, 1, 0),
 	SOC_DAPM_SINGLE_AUTODISABLE("PCM_2_CAP_CH2", AFE_CONN4,
 				    I_PCM_2_CAP_CH2, 1, 0),
 };

 static int mtk_adda_ul_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;

 	dev_dbg(afe->dev, "%s(), name %s, event 0x%x\n",
 		__func__, w->name, event);

 	switch (event) {
 	case SND_SOC_DAPM_PRE_PMU:
 		/* update setting to dmic */
 		if (afe_priv->mtkaif_dmic) {
 			/* mtkaif_rxif_data_mode = 1, dmic */
 			regmap_update_bits(afe->regmap, AFE_ADDA_MTKAIF_RX_CFG0,
 					   0x1, 0x1);

 			/* dmic mode, 3.25M*/
 			regmap_update_bits(afe->regmap, AFE_ADDA_MTKAIF_RX_CFG0,
 					   0x0, 0xf << 20);
 			regmap_update_bits(afe->regmap, AFE_ADDA_UL_SRC_CON0,
 					   0x0, 0x1 << 5);
 			regmap_update_bits(afe->regmap, AFE_ADDA_UL_SRC_CON0,
 					   0x0, 0x3 << 14);

 			/* turn on dmic, ch1, ch2 */
 			regmap_update_bits(afe->regmap, AFE_ADDA_UL_SRC_CON0,
 					   0x1 << 1, 0x1 << 1);
 			regmap_update_bits(afe->regmap, AFE_ADDA_UL_SRC_CON0,
 					   0x3 << 21, 0x3 << 21);
 		}
 		break;
 	case SND_SOC_DAPM_POST_PMD:
 		/* should delayed 1/fs(smallest is 8k) = 125us before afe off */
 		usleep_range(125, 135);
 		break;
 	default:
 		break;
 	}

 	return 0;
 }

 /* mtkaif dmic */
 static const char * const mt8183_adda_off_on_str[] = {
 	"Off", "On"
 };

 static const struct soc_enum mt8183_adda_enum[] = {
 	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(mt8183_adda_off_on_str),
 			    mt8183_adda_off_on_str),
 };

 static int mt8183_adda_dmic_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 mt8183_afe_private *afe_priv = afe->platform_priv;

 	ucontrol->value.integer.value[0] = afe_priv->mtkaif_dmic;

 	return 0;
 }

 static int mt8183_adda_dmic_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 mt8183_afe_private *afe_priv = afe->platform_priv;
 	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;

 	if (ucontrol->value.enumerated.item[0] >= e->items)
 		return -EINVAL;

 	afe_priv->mtkaif_dmic = ucontrol->value.integer.value[0];

 	dev_info(afe->dev, "%s(), kcontrol name %s, mtkaif_dmic %d\n",
 		 __func__, kcontrol->id.name, afe_priv->mtkaif_dmic);

 	return 0;
 }

 static const struct snd_kcontrol_new mtk_adda_controls[] = {
 	SOC_ENUM_EXT("MTKAIF_DMIC", mt8183_adda_enum[0],
 		     mt8183_adda_dmic_get, mt8183_adda_dmic_set),
 };

 enum {
 	SUPPLY_SEQ_ADDA_AFE_ON,
 	SUPPLY_SEQ_ADDA_DL_ON,
 	SUPPLY_SEQ_ADDA_UL_ON,
 };

 static const struct snd_soc_dapm_widget mtk_dai_adda_widgets[] = {
 	/* adda */
 	SND_SOC_DAPM_MIXER("ADDA_DL_CH1", SND_SOC_NOPM, 0, 0,
 			   mtk_adda_dl_ch1_mix,
 			   ARRAY_SIZE(mtk_adda_dl_ch1_mix)),
 	SND_SOC_DAPM_MIXER("ADDA_DL_CH2", SND_SOC_NOPM, 0, 0,
 			   mtk_adda_dl_ch2_mix,
 			   ARRAY_SIZE(mtk_adda_dl_ch2_mix)),

 	SND_SOC_DAPM_SUPPLY_S("ADDA Enable", SUPPLY_SEQ_ADDA_AFE_ON,
 			      AFE_ADDA_UL_DL_CON0, ADDA_AFE_ON_SFT, 0,
 			      NULL, 0),

 	SND_SOC_DAPM_SUPPLY_S("ADDA Playback Enable", SUPPLY_SEQ_ADDA_DL_ON,
 			      AFE_ADDA_DL_SRC2_CON0,
 			      DL_2_SRC_ON_TMP_CTL_PRE_SFT, 0,
 			      NULL, 0),

 	SND_SOC_DAPM_SUPPLY_S("ADDA Capture Enable", SUPPLY_SEQ_ADDA_UL_ON,
 			      AFE_ADDA_UL_SRC_CON0,
 			      UL_SRC_ON_TMP_CTL_SFT, 0,
 			      mtk_adda_ul_event,
 			      SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),

 	SND_SOC_DAPM_CLOCK_SUPPLY("aud_dac_clk"),
 	SND_SOC_DAPM_CLOCK_SUPPLY("aud_dac_predis_clk"),
 	SND_SOC_DAPM_CLOCK_SUPPLY("aud_adc_clk"),
 	SND_SOC_DAPM_CLOCK_SUPPLY("mtkaif_26m_clk"),
 };

 static const struct snd_soc_dapm_route mtk_dai_adda_routes[] = {
 	/* playback */
 	{"ADDA_DL_CH1", "DL1_CH1", "DL1"},
 	{"ADDA_DL_CH2", "DL1_CH1", "DL1"},
 	{"ADDA_DL_CH2", "DL1_CH2", "DL1"},

 	{"ADDA_DL_CH1", "DL2_CH1", "DL2"},
 	{"ADDA_DL_CH2", "DL2_CH1", "DL2"},
 	{"ADDA_DL_CH2", "DL2_CH2", "DL2"},

 	{"ADDA_DL_CH1", "DL3_CH1", "DL3"},
 	{"ADDA_DL_CH2", "DL3_CH1", "DL3"},
 	{"ADDA_DL_CH2", "DL3_CH2", "DL3"},

 	{"ADDA Playback", NULL, "ADDA_DL_CH1"},
 	{"ADDA Playback", NULL, "ADDA_DL_CH2"},

 	/* adda enable */
 	{"ADDA Playback", NULL, "ADDA Enable"},
 	{"ADDA Playback", NULL, "ADDA Playback Enable"},
 	{"ADDA Capture", NULL, "ADDA Enable"},
 	{"ADDA Capture", NULL, "ADDA Capture Enable"},

 	/* clk */
 	{"ADDA Playback", NULL, "mtkaif_26m_clk"},
 	{"ADDA Playback", NULL, "aud_dac_clk"},
 	{"ADDA Playback", NULL, "aud_dac_predis_clk"},

 	{"ADDA Capture", NULL, "mtkaif_26m_clk"},
 	{"ADDA Capture", NULL, "aud_adc_clk"},
 };

 static int set_mtkaif_rx(struct mtk_base_afe *afe)
 {
 	struct mt8183_afe_private *afe_priv = afe->platform_priv;
 	int delay_data;
 	int delay_cycle;

 	switch (afe_priv->mtkaif_protocol) {
 	case MT8183_MTKAIF_PROTOCOL_2_CLK_P2:
 		regmap_write(afe->regmap, AFE_AUD_PAD_TOP, 0x38);
 		regmap_write(afe->regmap, AFE_AUD_PAD_TOP, 0x39);
 		/* mtkaif_rxif_clkinv_adc inverse for calibration */
 		regmap_write(afe->regmap, AFE_ADDA_MTKAIF_CFG0,
 			     0x80010000);

 		if (afe_priv->mtkaif_phase_cycle[0] >=
 		    afe_priv->mtkaif_phase_cycle[1]) {
 			delay_data = DELAY_DATA_MISO1;
 			delay_cycle = afe_priv->mtkaif_phase_cycle[0] -
 				      afe_priv->mtkaif_phase_cycle[1];
 		} else {
 			delay_data = DELAY_DATA_MISO2;
 			delay_cycle = afe_priv->mtkaif_phase_cycle[1] -
 				      afe_priv->mtkaif_phase_cycle[0];
 		}

 		regmap_update_bits(afe->regmap,
 				   AFE_ADDA_MTKAIF_RX_CFG2,
 				   MTKAIF_RXIF_DELAY_DATA_MASK_SFT,
 				   delay_data << MTKAIF_RXIF_DELAY_DATA_SFT);

 		regmap_update_bits(afe->regmap,
 				   AFE_ADDA_MTKAIF_RX_CFG2,
 				   MTKAIF_RXIF_DELAY_CYCLE_MASK_SFT,
 				   delay_cycle << MTKAIF_RXIF_DELAY_CYCLE_SFT);
 		break;
 	case MT8183_MTKAIF_PROTOCOL_2:
 		regmap_write(afe->regmap, AFE_AUD_PAD_TOP, 0x31);
 		regmap_write(afe->regmap, AFE_ADDA_MTKAIF_CFG0,
 			     0x00010000);
 		break;
 	case MT8183_MTKAIF_PROTOCOL_1:
 		regmap_write(afe->regmap, AFE_AUD_PAD_TOP, 0x31);
 		regmap_write(afe->regmap, AFE_ADDA_MTKAIF_CFG0, 0x0);
 		break;
 	default:
 		break;
 	}

 	return 0;
 }

 /* dai ops */
 static int mtk_dai_adda_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);
 	unsigned int rate = params_rate(params);

 	dev_dbg(afe->dev, "%s(), id %d, stream %d, rate %d\n",
 		__func__, dai->id, substream->stream, rate);

 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 		unsigned int dl_src2_con0 = 0;
 		unsigned int dl_src2_con1 = 0;

 		/* clean predistortion */
 		regmap_write(afe->regmap, AFE_ADDA_PREDIS_CON0, 0);
 		regmap_write(afe->regmap, AFE_ADDA_PREDIS_CON1, 0);

 		/* set sampling rate */
 		dl_src2_con0 = adda_dl_rate_transform(afe, rate) << 28;

 		/* set output mode */
 		switch (rate) {
 		case 192000:
 			dl_src2_con0 |= (0x1 << 24); /* UP_SAMPLING_RATE_X2 */
 			dl_src2_con0 |= 1 << 14;
 			break;
 		case 96000:
 			dl_src2_con0 |= (0x2 << 24); /* UP_SAMPLING_RATE_X4 */
 			dl_src2_con0 |= 1 << 14;
 			break;
 		default:
 			dl_src2_con0 |= (0x3 << 24); /* UP_SAMPLING_RATE_X8 */
 			break;
 		}

 		/* turn off mute function */
 		dl_src2_con0 |= (0x03 << 11);

 		/* set voice input data if input sample rate is 8k or 16k */
 		if (rate == 8000 || rate == 16000)
 			dl_src2_con0 |= 0x01 << 5;

 		/* SA suggest apply -0.3db to audio/speech path */
 		dl_src2_con1 = 0xf74f0000;

 		/* turn on down-link gain */
 		dl_src2_con0 = dl_src2_con0 | (0x01 << 1);

 		regmap_write(afe->regmap, AFE_ADDA_DL_SRC2_CON0, dl_src2_con0);
 		regmap_write(afe->regmap, AFE_ADDA_DL_SRC2_CON1, dl_src2_con1);

 		/* set sdm gain */
 		regmap_update_bits(afe->regmap,
 				   AFE_ADDA_DL_SDM_DCCOMP_CON,
 				   ATTGAIN_CTL_MASK_SFT,
 				   AUDIO_SDM_LEVEL_NORMAL << ATTGAIN_CTL_SFT);
 	} else {
 		unsigned int voice_mode = 0;
 		unsigned int ul_src_con0 = 0;	/* default value */

 		/* set mtkaif protocol */
 		set_mtkaif_rx(afe);

 		/* Using Internal ADC */
 		regmap_update_bits(afe->regmap,
 				   AFE_ADDA_TOP_CON0,
 				   0x1 << 0,
 				   0x0 << 0);

 		voice_mode = adda_ul_rate_transform(afe, rate);

 		ul_src_con0 |= (voice_mode << 17) & (0x7 << 17);

 		/* enable iir */
 		ul_src_con0 |= (1 << UL_IIR_ON_TMP_CTL_SFT) &
 			       UL_IIR_ON_TMP_CTL_MASK_SFT;

 		/* 35Hz @ 48k */
 		regmap_write(afe->regmap, AFE_ADDA_IIR_COEF_02_01, 0x00000000);
 		regmap_write(afe->regmap, AFE_ADDA_IIR_COEF_04_03, 0x00003FB8);
 		regmap_write(afe->regmap, AFE_ADDA_IIR_COEF_06_05, 0x3FB80000);
 		regmap_write(afe->regmap, AFE_ADDA_IIR_COEF_08_07, 0x3FB80000);
 		regmap_write(afe->regmap, AFE_ADDA_IIR_COEF_10_09, 0x0000C048);

 		regmap_write(afe->regmap, AFE_ADDA_UL_SRC_CON0, ul_src_con0);

 		/* mtkaif_rxif_data_mode = 0, amic */
 		regmap_update_bits(afe->regmap,
 				   AFE_ADDA_MTKAIF_RX_CFG0,
 				   0x1 << 0,
 				   0x0 << 0);
 	}

 	return 0;
 }

 static const struct snd_soc_dai_ops mtk_dai_adda_ops = {
 	.hw_params = mtk_dai_adda_hw_params,
 };

 /* dai driver */
 #define MTK_ADDA_PLAYBACK_RATES (SNDRV_PCM_RATE_8000_48000 |\
 				 SNDRV_PCM_RATE_96000 |\
 				 SNDRV_PCM_RATE_192000)

 #define MTK_ADDA_CAPTURE_RATES (SNDRV_PCM_RATE_8000 |\
 				SNDRV_PCM_RATE_16000 |\
 				SNDRV_PCM_RATE_32000 |\
 				SNDRV_PCM_RATE_48000)

 #define MTK_ADDA_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
 			  SNDRV_PCM_FMTBIT_S24_LE |\
 			  SNDRV_PCM_FMTBIT_S32_LE)

 static struct snd_soc_dai_driver mtk_dai_adda_driver[] = {
 	{
 		.name = "ADDA",
 		.id = MT8183_DAI_ADDA,
 		.playback = {
 			.stream_name = "ADDA Playback",
 			.channels_min = 1,
 			.channels_max = 2,
 			.rates = MTK_ADDA_PLAYBACK_RATES,
 			.formats = MTK_ADDA_FORMATS,
 		},
 		.capture = {
 			.stream_name = "ADDA Capture",
 			.channels_min = 1,
 			.channels_max = 2,
 			.rates = MTK_ADDA_CAPTURE_RATES,
 			.formats = MTK_ADDA_FORMATS,
 		},
 		.ops = &mtk_dai_adda_ops,
 	},
 };

 int mt8183_dai_adda_register(struct mtk_base_afe *afe)
 {
 	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_adda_driver;
 	dai->num_dai_drivers = ARRAY_SIZE(mtk_dai_adda_driver);

 	dai->controls = mtk_adda_controls;
 	dai->num_controls = ARRAY_SIZE(mtk_adda_controls);
 	dai->dapm_widgets = mtk_dai_adda_widgets;
 	dai->num_dapm_widgets = ARRAY_SIZE(mtk_dai_adda_widgets);
 	dai->dapm_routes = mtk_dai_adda_routes;
 	dai->num_dapm_routes = ARRAY_SIZE(mtk_dai_adda_routes);
 	return 0;
 }
	// SPDX-License-Identifier: GPL-2.0
	//
	// MediaTek ALSA SoC Audio DAI ADDA Control
	//
	// Copyright (c) 2018 MediaTek Inc.
	// Author: KaiChieh Chuang <kaichieh.chuang@mediatek.com>

	#include <linux/regmap.h>
	#include <linux/delay.h>
	#include "mt8183-afe-common.h"
	#include "mt8183-interconnection.h"
	#include "mt8183-reg.h"

	enum {
	AUDIO_SDM_LEVEL_MUTE = 0,
	AUDIO_SDM_LEVEL_NORMAL = 0x1d,
	/* if you change level normal */
	/* you need to change formula of hp impedance and dc trim too */
	};

	enum {
	DELAY_DATA_MISO1 = 0,
	DELAY_DATA_MISO2,
	};

	enum {
	MTK_AFE_ADDA_DL_RATE_8K = 0,
	MTK_AFE_ADDA_DL_RATE_11K = 1,
	MTK_AFE_ADDA_DL_RATE_12K = 2,
	MTK_AFE_ADDA_DL_RATE_16K = 3,
	MTK_AFE_ADDA_DL_RATE_22K = 4,
	MTK_AFE_ADDA_DL_RATE_24K = 5,
	MTK_AFE_ADDA_DL_RATE_32K = 6,
	MTK_AFE_ADDA_DL_RATE_44K = 7,
	MTK_AFE_ADDA_DL_RATE_48K = 8,
	MTK_AFE_ADDA_DL_RATE_96K = 9,
	MTK_AFE_ADDA_DL_RATE_192K = 10,
	};

	enum {
	MTK_AFE_ADDA_UL_RATE_8K = 0,
	MTK_AFE_ADDA_UL_RATE_16K = 1,
	MTK_AFE_ADDA_UL_RATE_32K = 2,
	MTK_AFE_ADDA_UL_RATE_48K = 3,
	MTK_AFE_ADDA_UL_RATE_96K = 4,
	MTK_AFE_ADDA_UL_RATE_192K = 5,
	MTK_AFE_ADDA_UL_RATE_48K_HD = 6,
	};

	static unsigned int adda_dl_rate_transform(struct mtk_base_afe *afe,
	unsigned int rate)
	{
	switch (rate) {
	case 8000:
	return MTK_AFE_ADDA_DL_RATE_8K;
	case 11025:
	return MTK_AFE_ADDA_DL_RATE_11K;
	case 12000:
	return MTK_AFE_ADDA_DL_RATE_12K;
	case 16000:
	return MTK_AFE_ADDA_DL_RATE_16K;
	case 22050:
	return MTK_AFE_ADDA_DL_RATE_22K;
	case 24000:
	return MTK_AFE_ADDA_DL_RATE_24K;
	case 32000:
	return MTK_AFE_ADDA_DL_RATE_32K;
	case 44100:
	return MTK_AFE_ADDA_DL_RATE_44K;
	case 48000:
	return MTK_AFE_ADDA_DL_RATE_48K;
	case 96000:
	return MTK_AFE_ADDA_DL_RATE_96K;
	case 192000:
	return MTK_AFE_ADDA_DL_RATE_192K;
	default:
	dev_warn(afe->dev, "%s(), rate %d invalid, use 48kHz!!!\n",
	__func__, rate);
	return MTK_AFE_ADDA_DL_RATE_48K;
	}
	}

	static unsigned int adda_ul_rate_transform(struct mtk_base_afe *afe,
	unsigned int rate)
	{
	switch (rate) {
	case 8000:
	return MTK_AFE_ADDA_UL_RATE_8K;
	case 16000:
	return MTK_AFE_ADDA_UL_RATE_16K;
	case 32000:
	return MTK_AFE_ADDA_UL_RATE_32K;
	case 48000:
	return MTK_AFE_ADDA_UL_RATE_48K;
	case 96000:
	return MTK_AFE_ADDA_UL_RATE_96K;
	case 192000:
	return MTK_AFE_ADDA_UL_RATE_192K;
	default:
	dev_warn(afe->dev, "%s(), rate %d invalid, use 48kHz!!!\n",
	__func__, rate);
	return MTK_AFE_ADDA_UL_RATE_48K;
	}
	}

	/* dai component */
	static const struct snd_kcontrol_new mtk_adda_dl_ch1_mix[] = {
	SOC_DAPM_SINGLE_AUTODISABLE("DL1_CH1", AFE_CONN3, I_DL1_CH1, 1, 0),
	SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH1", AFE_CONN3, I_DL2_CH1, 1, 0),
	SOC_DAPM_SINGLE_AUTODISABLE("DL3_CH1", AFE_CONN3, I_DL3_CH1, 1, 0),
	SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2", AFE_CONN3,
	I_ADDA_UL_CH2, 1, 0),
	SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1", AFE_CONN3,
	I_ADDA_UL_CH1, 1, 0),
	SOC_DAPM_SINGLE_AUTODISABLE("PCM_1_CAP_CH1", AFE_CONN3,
	I_PCM_1_CAP_CH1, 1, 0),
	SOC_DAPM_SINGLE_AUTODISABLE("PCM_2_CAP_CH1", AFE_CONN3,
	I_PCM_2_CAP_CH1, 1, 0),
	};

	static const struct snd_kcontrol_new mtk_adda_dl_ch2_mix[] = {
	SOC_DAPM_SINGLE_AUTODISABLE("DL1_CH1", AFE_CONN4, I_DL1_CH1, 1, 0),
	SOC_DAPM_SINGLE_AUTODISABLE("DL1_CH2", AFE_CONN4, I_DL1_CH2, 1, 0),
	SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH1", AFE_CONN4, I_DL2_CH1, 1, 0),
	SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH2", AFE_CONN4, I_DL2_CH2, 1, 0),
	SOC_DAPM_SINGLE_AUTODISABLE("DL3_CH1", AFE_CONN4, I_DL3_CH1, 1, 0),
	SOC_DAPM_SINGLE_AUTODISABLE("DL3_CH2", AFE_CONN4, I_DL3_CH2, 1, 0),
	SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2", AFE_CONN4,
	I_ADDA_UL_CH2, 1, 0),
	SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1", AFE_CONN4,
	I_ADDA_UL_CH1, 1, 0),
	SOC_DAPM_SINGLE_AUTODISABLE("PCM_1_CAP_CH1", AFE_CONN4,
	I_PCM_1_CAP_CH1, 1, 0),
	SOC_DAPM_SINGLE_AUTODISABLE("PCM_2_CAP_CH1", AFE_CONN4,
	I_PCM_2_CAP_CH1, 1, 0),
	SOC_DAPM_SINGLE_AUTODISABLE("PCM_1_CAP_CH2", AFE_CONN4,
	I_PCM_1_CAP_CH2, 1, 0),
	SOC_DAPM_SINGLE_AUTODISABLE("PCM_2_CAP_CH2", AFE_CONN4,
	I_PCM_2_CAP_CH2, 1, 0),
	};

	static int mtk_adda_ul_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;

	dev_dbg(afe->dev, "%s(), name %s, event 0x%x\n",
	__func__, w->name, event);

	switch (event) {
	case SND_SOC_DAPM_PRE_PMU:
	/* update setting to dmic */
	if (afe_priv->mtkaif_dmic) {
	/* mtkaif_rxif_data_mode = 1, dmic */
	regmap_update_bits(afe->regmap, AFE_ADDA_MTKAIF_RX_CFG0,
	0x1, 0x1);

	/* dmic mode, 3.25M*/
	regmap_update_bits(afe->regmap, AFE_ADDA_MTKAIF_RX_CFG0,
	0x0, 0xf << 20);
	regmap_update_bits(afe->regmap, AFE_ADDA_UL_SRC_CON0,
	0x0, 0x1 << 5);
	regmap_update_bits(afe->regmap, AFE_ADDA_UL_SRC_CON0,
	0x0, 0x3 << 14);

	/* turn on dmic, ch1, ch2 */
	regmap_update_bits(afe->regmap, AFE_ADDA_UL_SRC_CON0,
	0x1 << 1, 0x1 << 1);
	regmap_update_bits(afe->regmap, AFE_ADDA_UL_SRC_CON0,
	0x3 << 21, 0x3 << 21);
	}
	break;
	case SND_SOC_DAPM_POST_PMD:
	/* should delayed 1/fs(smallest is 8k) = 125us before afe off */
	usleep_range(125, 135);
	break;
	default:
	break;
	}

	return 0;
	}

	/* mtkaif dmic */
	static const char * const mt8183_adda_off_on_str[] = {
	"Off", "On"
	};

	static const struct soc_enum mt8183_adda_enum[] = {
	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(mt8183_adda_off_on_str),
	mt8183_adda_off_on_str),
	};

	static int mt8183_adda_dmic_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 mt8183_afe_private *afe_priv = afe->platform_priv;

	ucontrol->value.integer.value[0] = afe_priv->mtkaif_dmic;

	return 0;
	}

	static int mt8183_adda_dmic_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 mt8183_afe_private *afe_priv = afe->platform_priv;
	struct soc_enum e = (struct soc_enum )kcontrol->private_value;

	if (ucontrol->value.enumerated.item[0] >= e->items)
	return -EINVAL;

	afe_priv->mtkaif_dmic = ucontrol->value.integer.value[0];

	dev_info(afe->dev, "%s(), kcontrol name %s, mtkaif_dmic %d\n",
	__func__, kcontrol->id.name, afe_priv->mtkaif_dmic);

	return 0;
	}

	static const struct snd_kcontrol_new mtk_adda_controls[] = {
	SOC_ENUM_EXT("MTKAIF_DMIC", mt8183_adda_enum[0],
	mt8183_adda_dmic_get, mt8183_adda_dmic_set),
	};

	enum {
	SUPPLY_SEQ_ADDA_AFE_ON,
	SUPPLY_SEQ_ADDA_DL_ON,
	SUPPLY_SEQ_ADDA_UL_ON,
	};

	static const struct snd_soc_dapm_widget mtk_dai_adda_widgets[] = {
	/* adda */
	SND_SOC_DAPM_MIXER("ADDA_DL_CH1", SND_SOC_NOPM, 0, 0,
	mtk_adda_dl_ch1_mix,
	ARRAY_SIZE(mtk_adda_dl_ch1_mix)),
	SND_SOC_DAPM_MIXER("ADDA_DL_CH2", SND_SOC_NOPM, 0, 0,
	mtk_adda_dl_ch2_mix,
	ARRAY_SIZE(mtk_adda_dl_ch2_mix)),

	SND_SOC_DAPM_SUPPLY_S("ADDA Enable", SUPPLY_SEQ_ADDA_AFE_ON,
	AFE_ADDA_UL_DL_CON0, ADDA_AFE_ON_SFT, 0,
	NULL, 0),

	SND_SOC_DAPM_SUPPLY_S("ADDA Playback Enable", SUPPLY_SEQ_ADDA_DL_ON,
	AFE_ADDA_DL_SRC2_CON0,
	DL_2_SRC_ON_TMP_CTL_PRE_SFT, 0,
	NULL, 0),

	SND_SOC_DAPM_SUPPLY_S("ADDA Capture Enable", SUPPLY_SEQ_ADDA_UL_ON,
	AFE_ADDA_UL_SRC_CON0,
	UL_SRC_ON_TMP_CTL_SFT, 0,
	mtk_adda_ul_event,
	SND_SOC_DAPM_PRE_PMU \| SND_SOC_DAPM_POST_PMD),

	SND_SOC_DAPM_CLOCK_SUPPLY("aud_dac_clk"),
	SND_SOC_DAPM_CLOCK_SUPPLY("aud_dac_predis_clk"),
	SND_SOC_DAPM_CLOCK_SUPPLY("aud_adc_clk"),
	SND_SOC_DAPM_CLOCK_SUPPLY("mtkaif_26m_clk"),
	};

	static const struct snd_soc_dapm_route mtk_dai_adda_routes[] = {
	/* playback */
	{"ADDA_DL_CH1", "DL1_CH1", "DL1"},
	{"ADDA_DL_CH2", "DL1_CH1", "DL1"},
	{"ADDA_DL_CH2", "DL1_CH2", "DL1"},

	{"ADDA_DL_CH1", "DL2_CH1", "DL2"},
	{"ADDA_DL_CH2", "DL2_CH1", "DL2"},
	{"ADDA_DL_CH2", "DL2_CH2", "DL2"},

	{"ADDA_DL_CH1", "DL3_CH1", "DL3"},
	{"ADDA_DL_CH2", "DL3_CH1", "DL3"},
	{"ADDA_DL_CH2", "DL3_CH2", "DL3"},

	{"ADDA Playback", NULL, "ADDA_DL_CH1"},
	{"ADDA Playback", NULL, "ADDA_DL_CH2"},

	/* adda enable */
	{"ADDA Playback", NULL, "ADDA Enable"},
	{"ADDA Playback", NULL, "ADDA Playback Enable"},
	{"ADDA Capture", NULL, "ADDA Enable"},
	{"ADDA Capture", NULL, "ADDA Capture Enable"},

	/* clk */
	{"ADDA Playback", NULL, "mtkaif_26m_clk"},
	{"ADDA Playback", NULL, "aud_dac_clk"},
	{"ADDA Playback", NULL, "aud_dac_predis_clk"},

	{"ADDA Capture", NULL, "mtkaif_26m_clk"},
	{"ADDA Capture", NULL, "aud_adc_clk"},
	};

	static int set_mtkaif_rx(struct mtk_base_afe *afe)
	{
	struct mt8183_afe_private *afe_priv = afe->platform_priv;
	int delay_data;
	int delay_cycle;

	switch (afe_priv->mtkaif_protocol) {
	case MT8183_MTKAIF_PROTOCOL_2_CLK_P2:
	regmap_write(afe->regmap, AFE_AUD_PAD_TOP, 0x38);
	regmap_write(afe->regmap, AFE_AUD_PAD_TOP, 0x39);
	/* mtkaif_rxif_clkinv_adc inverse for calibration */
	regmap_write(afe->regmap, AFE_ADDA_MTKAIF_CFG0,
	0x80010000);

	if (afe_priv->mtkaif_phase_cycle[0] >=
	afe_priv->mtkaif_phase_cycle[1]) {
	delay_data = DELAY_DATA_MISO1;
	delay_cycle = afe_priv->mtkaif_phase_cycle[0] -
	afe_priv->mtkaif_phase_cycle[1];
	} else {
	delay_data = DELAY_DATA_MISO2;
	delay_cycle = afe_priv->mtkaif_phase_cycle[1] -
	afe_priv->mtkaif_phase_cycle[0];
	}

	regmap_update_bits(afe->regmap,
	AFE_ADDA_MTKAIF_RX_CFG2,
	MTKAIF_RXIF_DELAY_DATA_MASK_SFT,
	delay_data << MTKAIF_RXIF_DELAY_DATA_SFT);

	regmap_update_bits(afe->regmap,
	AFE_ADDA_MTKAIF_RX_CFG2,
	MTKAIF_RXIF_DELAY_CYCLE_MASK_SFT,
	delay_cycle << MTKAIF_RXIF_DELAY_CYCLE_SFT);
	break;
	case MT8183_MTKAIF_PROTOCOL_2:
	regmap_write(afe->regmap, AFE_AUD_PAD_TOP, 0x31);
	regmap_write(afe->regmap, AFE_ADDA_MTKAIF_CFG0,
	0x00010000);
	break;
	case MT8183_MTKAIF_PROTOCOL_1:
	regmap_write(afe->regmap, AFE_AUD_PAD_TOP, 0x31);
	regmap_write(afe->regmap, AFE_ADDA_MTKAIF_CFG0, 0x0);
	break;
	default:
	break;
	}

	return 0;
	}

	/* dai ops */
	static int mtk_dai_adda_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);
	unsigned int rate = params_rate(params);

	dev_dbg(afe->dev, "%s(), id %d, stream %d, rate %d\n",
	__func__, dai->id, substream->stream, rate);

	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
	unsigned int dl_src2_con0 = 0;
	unsigned int dl_src2_con1 = 0;

	/* clean predistortion */
	regmap_write(afe->regmap, AFE_ADDA_PREDIS_CON0, 0);
	regmap_write(afe->regmap, AFE_ADDA_PREDIS_CON1, 0);

	/* set sampling rate */
	dl_src2_con0 = adda_dl_rate_transform(afe, rate) << 28;

	/* set output mode */
	switch (rate) {
	case 192000:
	dl_src2_con0 \|= (0x1 << 24); /* UP_SAMPLING_RATE_X2 */
	dl_src2_con0 \|= 1 << 14;
	break;
	case 96000:
	dl_src2_con0 \|= (0x2 << 24); /* UP_SAMPLING_RATE_X4 */
	dl_src2_con0 \|= 1 << 14;
	break;
	default:
	dl_src2_con0 \|= (0x3 << 24); /* UP_SAMPLING_RATE_X8 */
	break;
	}

	/* turn off mute function */
	dl_src2_con0 \|= (0x03 << 11);

	/* set voice input data if input sample rate is 8k or 16k */
	if (rate == 8000 \|\| rate == 16000)
	dl_src2_con0 \|= 0x01 << 5;

	/* SA suggest apply -0.3db to audio/speech path */
	dl_src2_con1 = 0xf74f0000;

	/* turn on down-link gain */
	dl_src2_con0 = dl_src2_con0 \| (0x01 << 1);

	regmap_write(afe->regmap, AFE_ADDA_DL_SRC2_CON0, dl_src2_con0);
	regmap_write(afe->regmap, AFE_ADDA_DL_SRC2_CON1, dl_src2_con1);

	/* set sdm gain */
	regmap_update_bits(afe->regmap,
	AFE_ADDA_DL_SDM_DCCOMP_CON,
	ATTGAIN_CTL_MASK_SFT,
	AUDIO_SDM_LEVEL_NORMAL << ATTGAIN_CTL_SFT);
	} else {
	unsigned int voice_mode = 0;
	unsigned int ul_src_con0 = 0; /* default value */

	/* set mtkaif protocol */
	set_mtkaif_rx(afe);

	/* Using Internal ADC */
	regmap_update_bits(afe->regmap,
	AFE_ADDA_TOP_CON0,
	0x1 << 0,
	0x0 << 0);

	voice_mode = adda_ul_rate_transform(afe, rate);

	ul_src_con0 \|= (voice_mode << 17) & (0x7 << 17);

	/* enable iir */
	ul_src_con0 \|= (1 << UL_IIR_ON_TMP_CTL_SFT) &
	UL_IIR_ON_TMP_CTL_MASK_SFT;

	/* 35Hz @ 48k */
	regmap_write(afe->regmap, AFE_ADDA_IIR_COEF_02_01, 0x00000000);
	regmap_write(afe->regmap, AFE_ADDA_IIR_COEF_04_03, 0x00003FB8);
	regmap_write(afe->regmap, AFE_ADDA_IIR_COEF_06_05, 0x3FB80000);
	regmap_write(afe->regmap, AFE_ADDA_IIR_COEF_08_07, 0x3FB80000);
	regmap_write(afe->regmap, AFE_ADDA_IIR_COEF_10_09, 0x0000C048);

	regmap_write(afe->regmap, AFE_ADDA_UL_SRC_CON0, ul_src_con0);

	/* mtkaif_rxif_data_mode = 0, amic */
	regmap_update_bits(afe->regmap,
	AFE_ADDA_MTKAIF_RX_CFG0,
	0x1 << 0,
	0x0 << 0);
	}

	return 0;
	}

	static const struct snd_soc_dai_ops mtk_dai_adda_ops = {
	.hw_params = mtk_dai_adda_hw_params,
	};

	/* dai driver */
	#define MTK_ADDA_PLAYBACK_RATES (SNDRV_PCM_RATE_8000_48000 \|\
	SNDRV_PCM_RATE_96000 \|\
	SNDRV_PCM_RATE_192000)

	#define MTK_ADDA_CAPTURE_RATES (SNDRV_PCM_RATE_8000 \|\
	SNDRV_PCM_RATE_16000 \|\
	SNDRV_PCM_RATE_32000 \|\
	SNDRV_PCM_RATE_48000)

	#define MTK_ADDA_FORMATS (SNDRV_PCM_FMTBIT_S16_LE \|\
	SNDRV_PCM_FMTBIT_S24_LE \|\
	SNDRV_PCM_FMTBIT_S32_LE)

	static struct snd_soc_dai_driver mtk_dai_adda_driver[] = {
	{
	.name = "ADDA",
	.id = MT8183_DAI_ADDA,
	.playback = {
	.stream_name = "ADDA Playback",
	.channels_min = 1,
	.channels_max = 2,
	.rates = MTK_ADDA_PLAYBACK_RATES,
	.formats = MTK_ADDA_FORMATS,
	},
	.capture = {
	.stream_name = "ADDA Capture",
	.channels_min = 1,
	.channels_max = 2,
	.rates = MTK_ADDA_CAPTURE_RATES,
	.formats = MTK_ADDA_FORMATS,
	},
	.ops = &mtk_dai_adda_ops,
	},
	};

	int mt8183_dai_adda_register(struct mtk_base_afe *afe)
	{
	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_adda_driver;
	dai->num_dai_drivers = ARRAY_SIZE(mtk_dai_adda_driver);

	dai->controls = mtk_adda_controls;
	dai->num_controls = ARRAY_SIZE(mtk_adda_controls);
	dai->dapm_widgets = mtk_dai_adda_widgets;
	dai->num_dapm_widgets = ARRAY_SIZE(mtk_dai_adda_widgets);
	dai->dapm_routes = mtk_dai_adda_routes;
	dai->num_dapm_routes = ARRAY_SIZE(mtk_dai_adda_routes);
	return 0;
	}