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charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240226-audio-i350-v1-9-4fa1cea1667f@baylibre.com> References: <20240226-audio-i350-v1-0-4fa1cea1667f@baylibre.com> In-Reply-To: <20240226-audio-i350-v1-0-4fa1cea1667f@baylibre.com> To: Liam Girdwood , Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno , Lee Jones , Flora Fu , Jaroslav Kysela , Takashi Iwai , Sumit Semwal , =?utf-8?q?Christian_K=C3=B6nig?= , Catalin Marinas , Will Deacon Cc: linux-sound@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, Alexandre Mergnat X-Mailer: b4 0.12.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=8239; i=amergnat@baylibre.com; h=from:subject:message-id; bh=SrduQYlu24mwPGARYnXMeCn+sTZ1dLl4sYNSXpURd3c=; b=owEBbQKS/ZANAwAKAStGSZ1+MdRFAcsmYgBl3JncOT/sN5jqDF7//+lc/ZeUzCaBNJADGLuCuAvr 2Kv7vvGJAjMEAAEKAB0WIQQjG17X8+qqcA5g/osrRkmdfjHURQUCZdyZ3AAKCRArRkmdfjHURdHgD/ wNHRI17DKoBBVZuUR6cTWmWj1X2CDH/RcNiJ4iunhr1d3AZUyeq3jRyrF/Yr/8CMSgfmnBY55uCtoK 96dvOuQI19T67dKFUZ4V/EnPB+OgtxPxZ6IVvKUiwKYY5g8tUMCg9Zo7XE8AOHhA2QFpnmbqFzUcRq deUL8cGtRQ40jNyKI3ftfaqXYJtPgnldwr/+grslVCD6S/hsGfBJPKQOeUCLw8YO2mQl+RPoPBPNub z5l6iqo4o9Ohop147O7RT61jfKMhswwtXw8X7ifs4ob9TO4CmdUYdP2RyftmXzBqBk11EoIHKDs4BD JGvWsuKwF9vhuGw2qDIV8ZYKU/B9V+cpOJ+7k7+jrocaYaJi/HNUesgq/MNLYxOn4uvx08fFePTvMR BKdwxh3g7Vg2APRtje4UBEuEfKPlBP3/SSdx+uxhe8X22IjAqUk8CDotIvQFmTlVLJD1WUT21lHs2G gciqaoUQfY4KQ7AiLxU1senUnOKVd7tOzZ+oHHksIHBvuFBK63RY/PxRusOpu2fheSdec9dCYsfYXn 5uT8hrwBVJVnOULjtN7GLYtAu/1sr+JEYtPhqVJ+kE2Su7VT9+bGMJw/q1ikVpRXemPew03UdMSprY 4qNVODwFQXu9Q9eL4FSdSV/ubbvhTX2bLz+e6HncTcUK2HxqyAUiqboJ6fqA== X-Developer-Key: i=amergnat@baylibre.com; a=openpgp; fpr=231B5ED7F3EAAA700E60FE8B2B46499D7E31D445 Add Pulse Code Modulation Device Audio Interface support for MT8365 SoC. Signed-off-by: Alexandre Mergnat --- sound/soc/mediatek/mt8365/mt8365-dai-pcm.c | 298 +++++++++++++++++++++++++= ++++ 1 file changed, 298 insertions(+) diff --git a/sound/soc/mediatek/mt8365/mt8365-dai-pcm.c b/sound/soc/mediate= k/mt8365/mt8365-dai-pcm.c new file mode 100644 index 000000000000..02ee81663e50 --- /dev/null +++ b/sound/soc/mediatek/mt8365/mt8365-dai-pcm.c @@ -0,0 +1,298 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Mediatek 8365 ALSA SoC Audio DAI PCM Control + * + * Copyright (c) 2024 MediaTek Inc. + * Authors: Jia Zeng + * Alexandre Mergnat + */ + +#include +#include +#include +#include "mt8365-afe-clk.h" +#include "mt8365-afe-common.h" + +struct mt8365_pcm_intf_data { + bool slave_mode; + bool lrck_inv; + bool bck_inv; + unsigned int format; +}; + +/* DAI Drivers */ + +static void mt8365_dai_enable_pcm1(struct mtk_base_afe *afe) +{ + regmap_update_bits(afe->regmap, PCM_INTF_CON1, + PCM_INTF_CON1_EN, PCM_INTF_CON1_EN); +} + +static void mt8365_dai_disable_pcm1(struct mtk_base_afe *afe) +{ + regmap_update_bits(afe->regmap, PCM_INTF_CON1, + PCM_INTF_CON1_EN, 0x0); +} + +static int mt8365_dai_configure_pcm1(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_pcm_runtime * const runtime =3D substream->runtime; + struct mtk_base_afe *afe =3D snd_soc_dai_get_drvdata(dai); + struct mt8365_afe_private *afe_priv =3D afe->platform_priv; + struct mt8365_pcm_intf_data *pcm_priv =3D afe_priv->dai_priv[MT8365_AFE_I= O_PCM1]; + bool slave_mode =3D pcm_priv->slave_mode; + bool lrck_inv =3D pcm_priv->lrck_inv; + bool bck_inv =3D pcm_priv->bck_inv; + unsigned int fmt =3D pcm_priv->format; + unsigned int bit_width =3D dai->sample_bits; + unsigned int val =3D 0; + + if (!slave_mode) { + val |=3D PCM_INTF_CON1_MASTER_MODE | + PCM_INTF_CON1_BYPASS_ASRC; + + if (lrck_inv) + val |=3D PCM_INTF_CON1_SYNC_OUT_INV; + if (bck_inv) + val |=3D PCM_INTF_CON1_BCLK_OUT_INV; + } else { + val |=3D PCM_INTF_CON1_SLAVE_MODE; + + if (lrck_inv) + val |=3D PCM_INTF_CON1_SYNC_IN_INV; + if (bck_inv) + val |=3D PCM_INTF_CON1_BCLK_IN_INV; + + // TODO: add asrc setting + } + + val |=3D FIELD_PREP(PCM_INTF_CON1_FORMAT_MASK, fmt); + + if (fmt =3D=3D MT8365_PCM_FORMAT_PCMA || + fmt =3D=3D MT8365_PCM_FORMAT_PCMB) + val |=3D PCM_INTF_CON1_SYNC_LEN(1); + else + val |=3D PCM_INTF_CON1_SYNC_LEN(bit_width); + + switch (runtime->rate) { + case 48000: + val |=3D PCM_INTF_CON1_FS_48K; + break; + case 32000: + val |=3D PCM_INTF_CON1_FS_32K; + break; + case 16000: + val |=3D PCM_INTF_CON1_FS_16K; + break; + case 8000: + val |=3D PCM_INTF_CON1_FS_8K; + break; + default: + return -EINVAL; + } + + if (bit_width > 16) + val |=3D PCM_INTF_CON1_24BIT | PCM_INTF_CON1_64BCK; + else + val |=3D PCM_INTF_CON1_16BIT | PCM_INTF_CON1_32BCK; + + val |=3D PCM_INTF_CON1_EXT_MODEM; + + regmap_update_bits(afe->regmap, PCM_INTF_CON1, + PCM_INTF_CON1_CONFIG_MASK, val); + + return 0; +} + +static int mt8365_dai_pcm1_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct mtk_base_afe *afe =3D snd_soc_dai_get_drvdata(dai); + + if (snd_soc_dai_active(dai)) + return 0; + + mt8365_afe_enable_main_clk(afe); + + return 0; +} + +static void mt8365_dai_pcm1_shutdown(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct mtk_base_afe *afe =3D snd_soc_dai_get_drvdata(dai); + + if (snd_soc_dai_active(dai)) + return; + + mt8365_dai_disable_pcm1(afe); + mt8365_afe_disable_main_clk(afe); +} + +static int mt8365_dai_pcm1_prepare(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct mtk_base_afe *afe =3D snd_soc_dai_get_drvdata(dai); + int ret; + + if ((snd_soc_dai_stream_active_playback(dai) + snd_soc_dai_stream_active_= capture(dai)) + > 1) { + dev_info(afe->dev, "%s '%s' active(%u-%u) already\n", + __func__, snd_pcm_stream_str(substream), + snd_soc_dai_stream_active_playback(dai), + snd_soc_dai_stream_active_capture(dai)); + return 0; + } + + ret =3D mt8365_dai_configure_pcm1(substream, dai); + if (ret) + return ret; + + mt8365_dai_enable_pcm1(afe); + + return 0; +} + +static int mt8365_dai_pcm1_set_fmt(struct snd_soc_dai *dai, unsigned int f= mt) +{ + struct mtk_base_afe *afe =3D snd_soc_dai_get_drvdata(dai); + struct mt8365_afe_private *afe_priv =3D afe->platform_priv; + struct mt8365_pcm_intf_data *pcm_priv =3D afe_priv->dai_priv[MT8365_AFE_I= O_PCM1]; + + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + pcm_priv->format =3D MT8365_PCM_FORMAT_I2S; + break; + default: + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + pcm_priv->bck_inv =3D false; + pcm_priv->lrck_inv =3D false; + break; + case SND_SOC_DAIFMT_NB_IF: + pcm_priv->bck_inv =3D false; + pcm_priv->lrck_inv =3D true; + break; + case SND_SOC_DAIFMT_IB_NF: + pcm_priv->bck_inv =3D true; + pcm_priv->lrck_inv =3D false; + break; + case SND_SOC_DAIFMT_IB_IF: + pcm_priv->bck_inv =3D true; + pcm_priv->lrck_inv =3D true; + break; + default: + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBM_CFM: + pcm_priv->slave_mode =3D true; + break; + case SND_SOC_DAIFMT_CBS_CFS: + pcm_priv->slave_mode =3D false; + break; + default: + return -EINVAL; + } + + return 0; +} + +static const struct snd_soc_dai_ops mt8365_dai_pcm1_ops =3D { + .startup =3D mt8365_dai_pcm1_startup, + .shutdown =3D mt8365_dai_pcm1_shutdown, + .prepare =3D mt8365_dai_pcm1_prepare, + .set_fmt =3D mt8365_dai_pcm1_set_fmt, +}; + +static struct snd_soc_dai_driver mtk_dai_pcm_driver[] =3D { + { + .name =3D "PCM1", + .id =3D MT8365_AFE_IO_PCM1, + .playback =3D { + .stream_name =3D "PCM1 Playback", + .channels_min =3D 1, + .channels_max =3D 2, + .rates =3D SNDRV_PCM_RATE_8000 | + SNDRV_PCM_RATE_16000 | + SNDRV_PCM_RATE_32000 | + SNDRV_PCM_RATE_48000, + .formats =3D SNDRV_PCM_FMTBIT_S16_LE | + SNDRV_PCM_FMTBIT_S32_LE, + }, + .capture =3D { + .stream_name =3D "PCM1 Capture", + .channels_min =3D 1, + .channels_max =3D 2, + .rates =3D SNDRV_PCM_RATE_8000 | + SNDRV_PCM_RATE_16000 | + SNDRV_PCM_RATE_32000 | + SNDRV_PCM_RATE_48000, + .formats =3D SNDRV_PCM_FMTBIT_S16_LE | + SNDRV_PCM_FMTBIT_S32_LE, + }, + .ops =3D &mt8365_dai_pcm1_ops, + .symmetric_rate =3D 1, + .symmetric_sample_bits =3D 1, + } +}; + +/* DAI widget */ + +static const struct snd_soc_dapm_widget mtk_dai_pcm_widgets[] =3D { + SND_SOC_DAPM_OUTPUT("PCM1 Out"), + SND_SOC_DAPM_INPUT("PCM1 In"), +}; + +/* DAI route */ + +static const struct snd_soc_dapm_route mtk_dai_pcm_routes[] =3D { + {"PCM1 Playback", NULL, "O07"}, + {"PCM1 Playback", NULL, "O08"}, + {"PCM1 Out", NULL, "PCM1 Playback"}, + + {"I09", NULL, "PCM1 Capture"}, + {"I22", NULL, "PCM1 Capture"}, + {"PCM1 Capture", NULL, "PCM1 In"}, +}; + +static int init_pcmif_priv_data(struct mtk_base_afe *afe) +{ + struct mt8365_afe_private *afe_priv =3D afe->platform_priv; + struct mt8365_pcm_intf_data *pcmif_priv; + + pcmif_priv =3D devm_kzalloc(afe->dev, sizeof(struct mt8365_pcm_intf_data), + GFP_KERNEL); + if (!pcmif_priv) + return -ENOMEM; + + afe_priv->dai_priv[MT8365_AFE_IO_PCM1] =3D pcmif_priv; + return 0; +} + +int mt8365_dai_pcm_register(struct mtk_base_afe *afe) +{ + struct mtk_base_afe_dai *dai; + + dev_dbg(afe->dev, "%s()\n", __func__); + + dai =3D devm_kzalloc(afe->dev, sizeof(*dai), GFP_KERNEL); + if (!dai) + return -ENOMEM; + + list_add(&dai->list, &afe->sub_dais); + + dai->dai_drivers =3D mtk_dai_pcm_driver; + dai->num_dai_drivers =3D ARRAY_SIZE(mtk_dai_pcm_driver); + dai->dapm_widgets =3D mtk_dai_pcm_widgets; + dai->num_dapm_widgets =3D ARRAY_SIZE(mtk_dai_pcm_widgets); + dai->dapm_routes =3D mtk_dai_pcm_routes; + dai->num_dapm_routes =3D ARRAY_SIZE(mtk_dai_pcm_routes); + + return init_pcmif_priv_data(afe); +} --=20 2.25.1