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Message-ID: <20250628071442.31155-7-Cyril.Chao@mediatek.com>
Date: Sat, 28 Jun 2025 15:14:14 +0800
From: Cyril <Cyril.Chao@...iatek.com>
To: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>, Rob
Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor
Dooley <conor+dt@...nel.org>, Matthias Brugger <matthias.bgg@...il.com>,
AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>
CC: <linux-sound@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
<linux-mediatek@...ts.infradead.org>,
<Project_Global_Chrome_Upstream_Group@...iatek.com>,
<cyril.chao@...iatek.com>, Cyril Chao <Cyril.Chao@...iatek.com>
Subject: [PATCH 06/10] ASoC: mediatek: mt8189: support PCM in platform driver
From: Cyril Chao <Cyril.Chao@...iatek.com>
Add mt8189 PCM DAI driver support.
Signed-off-by: Cyril Chao <Cyril.Chao@...iatek.com>
---
sound/soc/mediatek/mt8189/mt8189-dai-pcm.c | 337 +++++++++++++++++++++
1 file changed, 337 insertions(+)
create mode 100644 sound/soc/mediatek/mt8189/mt8189-dai-pcm.c
diff --git a/sound/soc/mediatek/mt8189/mt8189-dai-pcm.c b/sound/soc/mediatek/mt8189/mt8189-dai-pcm.c
new file mode 100644
index 000000000..f26e1fb21
--- /dev/null
+++ b/sound/soc/mediatek/mt8189/mt8189-dai-pcm.c
@@ -0,0 +1,337 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * MediaTek ALSA SoC Audio DAI I2S Control
+ *
+ * Copyright (c) 2025 MediaTek Inc.
+ * Author: Darren Ye <darren.ye@...iatek.com>
+ */
+
+#include <linux/regmap.h>
+#include <sound/pcm_params.h>
+#include "mt8189-afe-common.h"
+#include "mt8189-interconnection.h"
+#include "mt8189-afe-clk.h"
+
+enum AUD_TX_LCH_RPT {
+ AUD_TX_LCH_RPT_NO_REPEAT = 0,
+ AUD_TX_LCH_RPT_REPEAT = 1
+};
+
+enum AUD_VBT_16K_MODE {
+ AUD_VBT_16K_MODE_DISABLE = 0,
+ AUD_VBT_16K_MODE_ENABLE = 1
+};
+
+enum AUD_EXT_MODEM {
+ AUD_EXT_MODEM_SELECT_INTERNAL = 0,
+ AUD_EXT_MODEM_SELECT_EXTERNAL = 1
+};
+
+enum AUD_PCM_SYNC_TYPE {
+ /* bck sync length = 1 */
+ AUD_PCM_ONE_BCK_CYCLE_SYNC = 0,
+ /* bck sync length = PCM_INTF_CON1[9:13] */
+ AUD_PCM_EXTENDED_BCK_CYCLE_SYNC = 1
+};
+
+enum AUD_BT_MODE {
+ AUD_BT_MODE_DUAL_MIC_ON_TX = 0,
+ AUD_BT_MODE_SINGLE_MIC_ON_TX = 1
+};
+
+enum AUD_PCM_AFIFO_SRC {
+ /* slave mode & external modem uses different crystal */
+ AUD_PCM_AFIFO_ASRC = 0,
+ /* slave mode & external modem uses the same crystal */
+ AUD_PCM_AFIFO_AFIFO = 1
+};
+
+enum AUD_PCM_CLOCK_SOURCE {
+ AUD_PCM_CLOCK_MASTER_MODE = 0,
+ AUD_PCM_CLOCK_SLAVE_MODE = 1
+};
+
+enum AUD_PCM_WLEN {
+ AUD_PCM_WLEN_PCM_32_BCK_CYCLES = 0,
+ AUD_PCM_WLEN_PCM_64_BCK_CYCLES = 1
+};
+
+enum AUD_PCM_MODE {
+ AUD_PCM_MODE_PCM_MODE_8K = 0,
+ AUD_PCM_MODE_PCM_MODE_16K = 1,
+ AUD_PCM_MODE_PCM_MODE_32K = 2,
+ AUD_PCM_MODE_PCM_MODE_48K = 3,
+};
+
+enum AUD_PCM_FMT {
+ AUD_PCM_FMT_I2S = 0,
+ AUD_PCM_FMT_EIAJ = 1,
+ AUD_PCM_FMT_PCM_MODE_A = 2,
+ AUD_PCM_FMT_PCM_MODE_B = 3
+};
+
+enum AUD_BCLK_OUT_INV {
+ AUD_BCLK_OUT_INV_NO_INVERSE = 0,
+ AUD_BCLK_OUT_INV_INVERSE = 1
+};
+
+enum AUD_PCM_EN {
+ AUD_PCM_EN_DISABLE = 0,
+ AUD_PCM_EN_ENABLE = 1
+};
+
+enum AUD_PCM1_1x_EN_DOMAIN {
+ HOPPING_26M = 0,
+ APLL = 1,
+ SLAVE = 6,
+};
+
+enum AUD_PCM1_1x_EN_SLAVE_MODE {
+ PCM0_SLAVE_1x_EN = 1,
+ PCM1_SLAVE_1x_EN = 2,
+};
+
+enum {
+ PCM_8K = 0,
+ PCM_16K = 4,
+ PCM_32K = 8,
+ PCM_48K = 10
+};
+
+static unsigned int pcm_1x_rate_transform(struct device *dev,
+ unsigned int rate)
+{
+ switch (rate) {
+ case 8000:
+ return PCM_8K;
+ case 16000:
+ return PCM_16K;
+ case 32000:
+ return PCM_32K;
+ case 48000:
+ return PCM_48K;
+ default:
+ dev_warn(dev, "rate %u invalid, use %d!!!\n",
+ rate, PCM_48K);
+ return PCM_48K;
+ }
+}
+
+static unsigned int pcm_rate_transform(struct device *dev,
+ unsigned int rate)
+{
+ switch (rate) {
+ case 8000:
+ return MTK_AFE_PCM_RATE_8K;
+ case 16000:
+ return MTK_AFE_PCM_RATE_16K;
+ case 32000:
+ return MTK_AFE_PCM_RATE_32K;
+ case 48000:
+ return MTK_AFE_PCM_RATE_48K;
+ default:
+ dev_warn(dev, "rate %u invalid, use %d\n",
+ rate, MTK_AFE_PCM_RATE_48K);
+ return MTK_AFE_PCM_RATE_48K;
+ }
+}
+
+/* dai component */
+static const struct snd_kcontrol_new mtk_pcm_0_playback_ch1_mix[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1", AFE_CONN096_0,
+ I_ADDA_UL_CH1, 1, 0),
+ SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH1", AFE_CONN096_1,
+ I_DL2_CH1, 1, 0),
+ SOC_DAPM_SINGLE_AUTODISABLE("DL_24CH_CH1", AFE_CONN096_1,
+ I_DL_24CH_CH1, 1, 0),
+};
+
+static const struct snd_kcontrol_new mtk_pcm_0_playback_ch2_mix[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2", AFE_CONN097_0,
+ I_ADDA_UL_CH2, 1, 0),
+ SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH2", AFE_CONN097_1,
+ I_DL2_CH2, 1, 0),
+ SOC_DAPM_SINGLE_AUTODISABLE("DL_24CH_CH2", AFE_CONN097_1,
+ I_DL_24CH_CH2, 1, 0),
+};
+
+static const struct snd_kcontrol_new mtk_pcm_0_playback_ch4_mix[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("I2SIN1_CH1", AFE_CONN099_4,
+ I_I2SIN1_CH1, 1, 0),
+ SOC_DAPM_SINGLE_AUTODISABLE("I2SIN1_CH2", AFE_CONN099_4,
+ I_I2SIN1_CH2, 1, 0),
+ SOC_DAPM_SINGLE_AUTODISABLE("DL0_CH1", AFE_CONN099_1,
+ I_DL0_CH1, 1, 0),
+ SOC_DAPM_SINGLE_AUTODISABLE("DL_24CH_CH1", AFE_CONN099_1,
+ I_DL_24CH_CH1, 1, 0),
+};
+
+static const struct snd_soc_dapm_widget mtk_dai_pcm_widgets[] = {
+ /* inter-connections */
+ SND_SOC_DAPM_MIXER("PCM_0_PB_CH1", SND_SOC_NOPM, 0, 0,
+ mtk_pcm_0_playback_ch1_mix,
+ ARRAY_SIZE(mtk_pcm_0_playback_ch1_mix)),
+ SND_SOC_DAPM_MIXER("PCM_0_PB_CH2", SND_SOC_NOPM, 0, 0,
+ mtk_pcm_0_playback_ch2_mix,
+ ARRAY_SIZE(mtk_pcm_0_playback_ch2_mix)),
+ SND_SOC_DAPM_MIXER("PCM_0_PB_CH4", SND_SOC_NOPM, 0, 0,
+ mtk_pcm_0_playback_ch4_mix,
+ ARRAY_SIZE(mtk_pcm_0_playback_ch4_mix)),
+
+ SND_SOC_DAPM_SUPPLY("PCM_0_EN",
+ AFE_PCM0_INTF_CON0, PCM0_EN_SFT, 0,
+ NULL,
+ 0),
+
+ SND_SOC_DAPM_SUPPLY("PCM0_CG", AUDIO_TOP_CON0, PDN_PCM0_SFT, 1,
+ NULL, 0),
+
+ SND_SOC_DAPM_INPUT("MD1_TO_AFE"),
+ SND_SOC_DAPM_INPUT("MD2_TO_AFE"),
+ SND_SOC_DAPM_OUTPUT("AFE_TO_MD1"),
+ SND_SOC_DAPM_OUTPUT("AFE_TO_MD2"),
+};
+
+static const struct snd_soc_dapm_route mtk_dai_pcm_routes[] = {
+ {"PCM 0 Playback", NULL, "PCM_0_PB_CH1"},
+ {"PCM 0 Playback", NULL, "PCM_0_PB_CH2"},
+ {"PCM 0 Playback", NULL, "PCM_0_PB_CH4"},
+
+ {"PCM 0 Playback", NULL, "PCM_0_EN"},
+ {"PCM 0 Capture", NULL, "PCM_0_EN"},
+ {"PCM 0 Playback", NULL, "PCM0_CG"},
+ {"PCM 0 Capture", NULL, "PCM0_CG"},
+
+ {"AFE_TO_MD2", NULL, "PCM 0 Playback"},
+ {"PCM 0 Capture", NULL, "MD2_TO_AFE"},
+
+ {"PCM_0_PB_CH1", "DL2_CH1", "DL2"},
+ {"PCM_0_PB_CH2", "DL2_CH2", "DL2"},
+ {"PCM_0_PB_CH4", "DL0_CH1", "DL0"},
+
+ {"PCM_0_PB_CH1", "DL_24CH_CH1", "DL_24CH"},
+ {"PCM_0_PB_CH2", "DL_24CH_CH2", "DL_24CH"},
+ {"PCM_0_PB_CH4", "DL_24CH_CH1", "DL_24CH"},
+};
+
+/* dai ops */
+static int mtk_dai_pcm_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);
+ unsigned int rate_reg = pcm_rate_transform(afe->dev, rate);
+ unsigned int x_rate_reg = pcm_1x_rate_transform(afe->dev, rate);
+ unsigned int pcm_con0 = 0;
+ unsigned int pcm_con1 = 0;
+ unsigned int playback_active = 0;
+ unsigned int capture_active = 0;
+ struct snd_soc_dapm_widget *playback_widget =
+ snd_soc_dai_get_widget(dai, SNDRV_PCM_STREAM_PLAYBACK);
+ struct snd_soc_dapm_widget *capture_widget =
+ snd_soc_dai_get_widget(dai, SNDRV_PCM_STREAM_CAPTURE);
+
+ if (playback_widget)
+ playback_active = playback_widget->active;
+ if (capture_widget)
+ capture_active = capture_widget->active;
+ dev_dbg(afe->dev,
+ "id %d, stream %d, rate %d, rate_reg %d, widget active p %d, c %d\n",
+ dai->id,
+ substream->stream,
+ rate,
+ rate_reg,
+ playback_active,
+ capture_active);
+
+ if (playback_active || capture_active)
+ return 0;
+ switch (dai->id) {
+ case MT8189_DAI_PCM_0:
+ pcm_con0 |= AUD_BCLK_OUT_INV_NO_INVERSE << PCM0_BCLK_OUT_INV_SFT;
+ pcm_con0 |= AUD_TX_LCH_RPT_NO_REPEAT << PCM0_TX_LCH_RPT_SFT;
+ pcm_con0 |= AUD_VBT_16K_MODE_DISABLE << PCM0_VBT_16K_MODE_SFT;
+ pcm_con0 |= 0 << PCM0_SYNC_LENGTH_SFT;
+ pcm_con0 |= AUD_PCM_ONE_BCK_CYCLE_SYNC << PCM0_SYNC_TYPE_SFT;
+ pcm_con0 |= AUD_PCM_AFIFO_AFIFO << PCM0_BYP_ASRC_SFT;
+ /* no pcm0 on IPM2.0 only for lpbk debug */
+ pcm_con0 |= AUD_PCM_CLOCK_MASTER_MODE << PCM0_SLAVE_SFT;
+ pcm_con0 |= rate_reg << PCM0_MODE_SFT;
+ pcm_con0 |= AUD_PCM_FMT_I2S << PCM0_FMT_SFT;
+
+ pcm_con1 |= AUD_EXT_MODEM_SELECT_INTERNAL << PCM0_EXT_MODEM_SFT;
+ pcm_con1 |= AUD_BT_MODE_DUAL_MIC_ON_TX << PCM0_BT_MODE_SFT;
+ pcm_con1 |= HOPPING_26M << PCM0_1X_EN_DOMAIN_SFT;
+ pcm_con1 |= x_rate_reg << PCM0_1X_EN_MODE_SFT;
+
+ regmap_update_bits(afe->regmap, AFE_PCM0_INTF_CON0,
+ 0xfffffffe, pcm_con0);
+ regmap_update_bits(afe->regmap, AFE_PCM0_INTF_CON1,
+ 0xffffffff, pcm_con1);
+ break;
+ default:
+ dev_err(afe->dev, "%s(), id %d not support\n",
+ __func__, dai->id);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static const struct snd_soc_dai_ops mtk_dai_pcm_ops = {
+ .hw_params = mtk_dai_pcm_hw_params,
+};
+
+/* dai driver */
+#define MTK_PCM_RATES (SNDRV_PCM_RATE_8000 |\
+ SNDRV_PCM_RATE_16000 |\
+ SNDRV_PCM_RATE_32000 |\
+ SNDRV_PCM_RATE_48000)
+
+#define MTK_PCM_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
+ SNDRV_PCM_FMTBIT_S24_LE |\
+ SNDRV_PCM_FMTBIT_S32_LE)
+
+static struct snd_soc_dai_driver mtk_dai_pcm_driver[] = {
+ {
+ .name = "PCM 0",
+ .id = MT8189_DAI_PCM_0,
+ .playback = {
+ .stream_name = "PCM 0 Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = MTK_PCM_RATES,
+ .formats = MTK_PCM_FORMATS,
+ },
+ .capture = {
+ .stream_name = "PCM 0 Capture",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = MTK_PCM_RATES,
+ .formats = MTK_PCM_FORMATS,
+ },
+ .ops = &mtk_dai_pcm_ops,
+ .symmetric_rate = 1,
+ .symmetric_sample_bits = 1,
+ },
+};
+
+int mt8189_dai_pcm_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_pcm_driver;
+ dai->num_dai_drivers = ARRAY_SIZE(mtk_dai_pcm_driver);
+
+ dai->dapm_widgets = mtk_dai_pcm_widgets;
+ dai->num_dapm_widgets = ARRAY_SIZE(mtk_dai_pcm_widgets);
+ dai->dapm_routes = mtk_dai_pcm_routes;
+ dai->num_dapm_routes = ARRAY_SIZE(mtk_dai_pcm_routes);
+ return 0;
+}
--
2.46.0
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