[PATCH 07/18] ASoC: mediatek: mt8365: Add ADDA DAI support

Alexandre Mergnat
2024-02-26T15:16:28Z

Add ADDA Device Audio Interface support for MT8365 SoC.

Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
---
sound/soc/mediatek/mt8365/mt8365-dai-adda.c | 355 ++++++++++++++++++++++++++++
1 file changed, 355 insertions(+)

diff --git a/sound/soc/mediatek/mt8365/mt8365-dai-adda.c b/sound/soc/mediatek/mt8365/mt8365-dai-adda.c
new file mode 100644
index 000000000000..798b749c0cc5
--- /dev/null
+++ b/sound/soc/mediatek/mt8365/mt8365-dai-adda.c
@@ -0,0 +1,355 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Mediatek 8365 ALSA SoC Audio DAI ADDA Control
+ *
+ * Copyright (c) 2024 MediaTek Inc.
+ * Authors: Jia Zeng <jia.zeng@mediatek.com>
+ * Alexandre Mergnat <amergnat@baylibre.com>
+ */
+
+#include <linux/bitops.h>
+#include <linux/regmap.h>
+#include <sound/pcm_params.h>
+#include "mt8365-afe-clk.h"
+#include "mt8365-afe-common.h"
+
+static int adda_afe_on_ref_cnt;
+
+/* DAI Drivers */
+
+static int mt8365_dai_set_adda_out(struct mtk_base_afe *afe, unsigned int rate)
+{
+ unsigned int val = 0;
+
+ switch (rate) {
+ case 8000:
+ val |= (0 << 28) | AFE_ADDA_DL_VOICE_DATA;
+ break;
+ case 11025:
+ val |= 1 << 28;
+ break;
+ case 12000:
+ val |= 2 << 28;
+ break;
+ case 16000:
+ val |= (3 << 28) | AFE_ADDA_DL_VOICE_DATA;
+ break;
+ case 22050:
+ val |= 4 << 28;
+ break;
+ case 24000:
+ val |= 5 << 28;
+ break;
+ case 32000:
+ val |= 6 << 28;
+ break;
+ case 44100:
+ val |= 7 << 28;
+ break;
+ case 48000:
+ val |= 8 << 28;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ val |= AFE_ADDA_DL_8X_UPSAMPLE |
+ AFE_ADDA_DL_MUTE_OFF_CH1 |
+ AFE_ADDA_DL_MUTE_OFF_CH2 |
+ AFE_ADDA_DL_DEGRADE_GAIN;
+
+ regmap_update_bits(afe->regmap, AFE_ADDA_PREDIS_CON0, 0xffffffff, 0);
+ regmap_update_bits(afe->regmap, AFE_ADDA_PREDIS_CON1, 0xffffffff, 0);
+ regmap_update_bits(afe->regmap, AFE_ADDA_DL_SRC2_CON0, 0xffffffff, val);
+ /* SA suggest apply -0.3db to audio/speech path */
+ regmap_update_bits(afe->regmap, AFE_ADDA_DL_SRC2_CON1,
+ 0xffffffff, 0xf74f0000);
+ /* SA suggest use default value for sdm */
+ regmap_update_bits(afe->regmap, AFE_ADDA_DL_SDM_DCCOMP_CON,
+ 0xffffffff, 0x0700701e);
+
+ return 0;
+}
+
+static int mt8365_dai_set_adda_in(struct mtk_base_afe *afe, unsigned int rate)
+{
+ unsigned int val = 0;
+
+ switch (rate) {
+ case 8000:
+ val |= (0 << 17);
+ break;
+ case 16000:
+ val |= (1 << 17);
+ break;
+ case 32000:
+ val |= (2 << 17);
+ break;
+ case 48000:
+ val |= (3 << 17);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ regmap_update_bits(afe->regmap, AFE_ADDA_UL_SRC_CON0, 0x000e0000, val);
+ /* Using Internal ADC */
+ regmap_update_bits(afe->regmap, AFE_ADDA_TOP_CON0, 0x1, 0x0);
+
+ return 0;
+}
+
+int mt8365_dai_enable_adda_on(struct mtk_base_afe *afe)
+{
+ unsigned long flags;
+ struct mt8365_afe_private *afe_priv = afe->platform_priv;
+
+ spin_lock_irqsave(&afe_priv->afe_ctrl_lock, flags);
+
+ adda_afe_on_ref_cnt++;
+ if (adda_afe_on_ref_cnt == 1)
+ regmap_update_bits(afe->regmap, AFE_ADDA_UL_DL_CON0,
+ AFE_ADDA_UL_DL_ADDA_AFE_ON, AFE_ADDA_UL_DL_ADDA_AFE_ON);
+
+ spin_unlock_irqrestore(&afe_priv->afe_ctrl_lock, flags);
+
+ return 0;
+}
+
+int mt8365_dai_disable_adda_on(struct mtk_base_afe *afe)
+{
+ unsigned long flags;
+ struct mt8365_afe_private *afe_priv = afe->platform_priv;
+
+ spin_lock_irqsave(&afe_priv->afe_ctrl_lock, flags);
+
+ adda_afe_on_ref_cnt--;
+ if (adda_afe_on_ref_cnt == 0)
+ regmap_update_bits(afe->regmap, AFE_ADDA_UL_DL_CON0,
+ AFE_ADDA_UL_DL_ADDA_AFE_ON, ~AFE_ADDA_UL_DL_ADDA_AFE_ON);
+ else if (adda_afe_on_ref_cnt < 0)
+ adda_afe_on_ref_cnt = 0;
+
+ spin_unlock_irqrestore(&afe_priv->afe_ctrl_lock, flags);
+
+ return 0;
+}
+
+static void mt8365_dai_set_adda_out_enable(struct mtk_base_afe *afe,
+ bool enable)
+{
+ regmap_update_bits(afe->regmap, AFE_ADDA_DL_SRC2_CON0, 0x1, enable);
+
+ if (enable)
+ mt8365_dai_enable_adda_on(afe);
+ else
+ mt8365_dai_disable_adda_on(afe);
+}
+
+static void mt8365_dai_set_adda_in_enable(struct mtk_base_afe *afe,
+ bool enable)
+{
+ if (enable) {
+ regmap_update_bits(afe->regmap, AFE_ADDA_UL_SRC_CON0, 0x1, 0x1);
+ mt8365_dai_enable_adda_on(afe);
+ /* enable aud_pad_top fifo */
+ regmap_update_bits(afe->regmap, AFE_AUD_PAD_TOP,
+ 0xffffffff, 0x31);
+ } else {
+ /* disable aud_pad_top fifo */
+ regmap_update_bits(afe->regmap, AFE_AUD_PAD_TOP,
+ 0xffffffff, 0x30);
+ regmap_update_bits(afe->regmap, AFE_ADDA_UL_SRC_CON0, 0x1, 0x0);
+ /* de suggest disable ADDA_UL_SRC at least wait 125us */
+ udelay(150);
+ mt8365_dai_disable_adda_on(afe);
+ }
+}
+
+static int mt8365_dai_int_adda_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+ unsigned int stream = substream->stream;
+
+ mt8365_afe_enable_main_clk(afe);
+
+ if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ mt8365_afe_enable_top_cg(afe, MT8365_TOP_CG_DAC);
+ mt8365_afe_enable_top_cg(afe, MT8365_TOP_CG_DAC_PREDIS);
+ } else if (stream == SNDRV_PCM_STREAM_CAPTURE) {
+ mt8365_afe_enable_top_cg(afe, MT8365_TOP_CG_ADC);
+ }
+
+ return 0;
+}
+
+static void mt8365_dai_int_adda_shutdown(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+ struct mt8365_afe_private *afe_priv = afe->platform_priv;
+ struct mt8365_be_dai_data *be =
+ &afe_priv->be_data[dai->id - MT8365_AFE_BACKEND_BASE];
+ unsigned int stream = substream->stream;
+
+ if (be->prepared[stream]) {
+ if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ mt8365_dai_set_adda_out_enable(afe, false);
+ mt8365_afe_set_i2s_out_enable(afe, false);
+ } else
+ mt8365_dai_set_adda_in_enable(afe, false);
+
+ be->prepared[stream] = false;
+ }
+
+ if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ mt8365_afe_disable_top_cg(afe, MT8365_TOP_CG_DAC_PREDIS);
+ mt8365_afe_disable_top_cg(afe, MT8365_TOP_CG_DAC);
+ } else if (stream == SNDRV_PCM_STREAM_CAPTURE) {
+ mt8365_afe_disable_top_cg(afe, MT8365_TOP_CG_ADC);
+ }
+
+ mt8365_afe_disable_main_clk(afe);
+}
+
+static int mt8365_dai_int_adda_prepare(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+ struct mt8365_afe_private *afe_priv = afe->platform_priv;
+ struct mt8365_be_dai_data *be =
+ &afe_priv->be_data[dai->id - MT8365_AFE_BACKEND_BASE];
+ const unsigned int rate = substream->runtime->rate;
+ const unsigned int stream = substream->stream;
+ const int bit_width = snd_pcm_format_width(substream->runtime->format);
+ int ret;
+
+ dev_info(afe->dev, "%s '%s' rate = %u\n", __func__,
+ snd_pcm_stream_str(substream), rate);
+
+ if (be->prepared[stream]) {
+ dev_info(afe->dev, "%s '%s' prepared already\n",
+ __func__, snd_pcm_stream_str(substream));
+ return 0;
+ }
+
+ if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ ret = mt8365_dai_set_adda_out(afe, rate);
+ if (ret)
+ return ret;
+
+ ret = mt8365_afe_set_i2s_out(afe, rate, bit_width);
+ if (ret)
+ return ret;
+
+ mt8365_dai_set_adda_out_enable(afe, true);
+ mt8365_afe_set_i2s_out_enable(afe, true);
+ } else {
+ ret = mt8365_dai_set_adda_in(afe, rate);
+ if (ret)
+ return ret;
+
+ mt8365_dai_set_adda_in_enable(afe, true);
+ }
+
+ be->prepared[stream] = true;
+
+ return 0;
+}
+
+static const struct snd_soc_dai_ops mt8365_afe_int_adda_ops = {
+ .startup = mt8365_dai_int_adda_startup,
+ .shutdown = mt8365_dai_int_adda_shutdown,
+ .prepare = mt8365_dai_int_adda_prepare,
+};
+
+static struct snd_soc_dai_driver mtk_dai_adda_driver[] = {
+ {
+ .name = "INT ADDA",
+ .id = MT8365_AFE_IO_INT_ADDA,
+ .playback = {
+ .stream_name = "INT ADDA Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ .capture = {
+ .stream_name = "INT ADDA Capture",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000 |
+ SNDRV_PCM_RATE_16000 |
+ SNDRV_PCM_RATE_32000 |
+ SNDRV_PCM_RATE_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S32_LE,
+ },
+ .ops = &mt8365_afe_int_adda_ops,
+ }
+};
+
+/* DAI Controls */
+
+static const struct snd_kcontrol_new mtk_adda_dl_ch1_mix[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("GAIN1_OUT_CH1", AFE_CONN3,
+ 10, 1, 0),
+};
+
+static const struct snd_kcontrol_new mtk_adda_dl_ch2_mix[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("GAIN1_OUT_CH2", AFE_CONN4,
+ 11, 1, 0),
+};
+
+static const struct snd_kcontrol_new int_adda_o03_o04_enable_ctl =
+ SOC_DAPM_SINGLE_VIRT("Switch", 1);
+
+/* DAI widget */
+
+static const struct snd_soc_dapm_widget mtk_dai_adda_widgets[] = {
+ SND_SOC_DAPM_SWITCH("INT ADDA O03_O04", SND_SOC_NOPM, 0, 0,
+ &int_adda_o03_o04_enable_ctl),
+ /* inter-connections */
+ 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)),
+};
+
+/* DAI route */
+
+static const struct snd_soc_dapm_route mtk_dai_adda_routes[] = {
+ {"INT ADDA O03_O04", "Switch", "O03"},
+ {"INT ADDA O03_O04", "Switch", "O04"},
+ {"INT ADDA Playback", NULL, "INT ADDA O03_O04"},
+ {"INT ADDA Playback", NULL, "ADDA_DL_CH1"},
+ {"INT ADDA Playback", NULL, "ADDA_DL_CH2"},
+ {"AIN Mux", "INT ADC", "INT ADDA Capture"},
+ {"ADDA_DL_CH1", "GAIN1_OUT_CH1", "Hostless FM DL"},
+ {"ADDA_DL_CH2", "GAIN1_OUT_CH2", "Hostless FM DL"},
+};
+
+int mt8365_dai_adda_register(struct mtk_base_afe *afe)
+{
+ struct mtk_base_afe_dai *dai;
+
+ dev_dbg(afe->dev, "%s()\n", __func__);
+
+ 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->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;
+}

--
2.25.1