Il 17/02/22 14:41, Jiaxin Yu ha scritto:
This patch adds mt8186 pcm dai driver.
Signed-off-by: Jiaxin Yu jiaxin.yu@mediatek.com
sound/soc/mediatek/mt8186/mt8186-dai-pcm.c | 432 +++++++++++++++++++++ 1 file changed, 432 insertions(+) create mode 100644 sound/soc/mediatek/mt8186/mt8186-dai-pcm.c
diff --git a/sound/soc/mediatek/mt8186/mt8186-dai-pcm.c b/sound/soc/mediatek/mt8186/mt8186-dai-pcm.c new file mode 100644 index 000000000000..73b3f720ed35 --- /dev/null +++ b/sound/soc/mediatek/mt8186/mt8186-dai-pcm.c @@ -0,0 +1,432 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// MediaTek ALSA SoC Audio DAI I2S Control +// +// Copyright (c) 2022 MediaTek Inc. +// Author: Jiaxin Yu jiaxin.yu@mediatek.com
+#include <linux/regmap.h> +#include <sound/pcm_params.h> +#include "mt8186-afe-common.h" +#include "mt8186-afe-gpio.h" +#include "mt8186-interconnection.h"
+struct mtk_afe_pcm_priv {
- unsigned int id;
- unsigned int fmt;
- unsigned int bck_invert;
- unsigned int lck_invert;
+};
+enum AUD_TX_LCH_RPT {
lowercase enumeration names please...
enum aud_tx_lch_rpt { AUD_TX....BLAH };
- 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_24BIT {
- AUD_PCM_24BIT_PCM_16_BITS = 0,
- AUD_PCM_24BIT_PCM_24_BITS = 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_LRCLK_OUT_INV {
- AUD_LRCLK_OUT_INV_NO_INVERSE = 0,
- AUD_LRCLK_OUT_INV_INVERSE = 1
+};
+enum AUD_PCM_EN {
- AUD_PCM_EN_DISABLE = 0,
- AUD_PCM_EN_ENABLE = 1
+};
..snip..
+/* 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);
- struct mt8186_afe_private *afe_priv = afe->platform_priv;
- int pcm_id = dai->id;
- struct mtk_afe_pcm_priv *pcm_priv = afe_priv->dai_priv[pcm_id];
- unsigned int rate = params_rate(params);
- unsigned int rate_reg = mt8186_rate_transform(afe->dev, rate, dai->id);
- snd_pcm_format_t format = params_format(params);
- unsigned int data_width =
snd_pcm_format_width(format);- unsigned int wlen_width =
snd_pcm_format_physical_width(format);- unsigned int pcm_con = 0;
- dev_info(afe->dev, "%s(), id %d, stream %d, widget active p %d, c %d\n",
__func__,dai->id,substream->stream,dai->playback_widget->active,dai->capture_widget->active);- dev_info(afe->dev, "%s(), rate %d, rate_reg %d, data_width %d, wlen_width %d\n",
__func__,rate,rate_reg,data_width,wlen_width);
dev_dbg() - also, you don't need one line per variable.
- if (dai->playback_widget->active || dai->capture_widget->active)
return 0;- switch (dai->id) {
- case MT8186_DAI_PCM:
pcm_con |= AUD_TX_LCH_RPT_NO_REPEAT << PCM_TX_LCH_RPT_SFT;pcm_con |= AUD_VBT_16K_MODE_DISABLE << PCM_VBT_16K_MODE_SFT;pcm_con |= AUD_EXT_MODEM_SELECT_EXTERNAL << PCM_EXT_MODEM_SFT;pcm_con |= AUD_PCM_ONE_BCK_CYCLE_SYNC << PCM_SYNC_TYPE_SFT;pcm_con |= AUD_BT_MODE_DUAL_MIC_ON_TX << PCM_BT_MODE_SFT;pcm_con |= AUD_PCM_AFIFO_AFIFO << PCM_BYP_ASRC_SFT;pcm_con |= AUD_PCM_CLOCK_MASTER_MODE << PCM_SLAVE_SFT;pcm_con |= 0 << PCM_SYNC_LENGTH_SFT;/* sampling rate */pcm_con |= rate_reg << PCM_MODE_SFT;/* format */pcm_con |= pcm_priv->fmt << PCM_FMT_SFT;/* 24bit data width */if (data_width > 16)pcm_con |= AUD_PCM_24BIT_PCM_24_BITS << PCM_24BIT_SFT;elsepcm_con |= AUD_PCM_24BIT_PCM_16_BITS << PCM_24BIT_SFT;/* wlen width*/if (wlen_width > 16)pcm_con |= AUD_PCM_WLEN_PCM_64_BCK_CYCLES << PCM_WLEN_SFT;elsepcm_con |= AUD_PCM_WLEN_PCM_32_BCK_CYCLES << PCM_WLEN_SFT;/* clock invert */pcm_con |= pcm_priv->lck_invert << PCM_SYNC_OUT_INV_SFT;pcm_con |= pcm_priv->bck_invert << PCM_BCLK_OUT_INV_SFT;regmap_update_bits(afe->regmap, PCM_INTF_CON1,0xfffffffe, pcm_con);
Fits in one line.
break;- default:
dev_info(afe->dev, "%s(), id %d not support\n",__func__, dai->id);
dev_err()
return -EINVAL;- }
- return 0;
+}
+static int mtk_dai_pcm_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{
- struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
- struct mt8186_afe_private *afe_priv = afe->platform_priv;
- struct mtk_afe_pcm_priv *pcm_priv = afe_priv->dai_priv[dai->id];
- if (!pcm_priv) {
dev_info(afe->dev, "%s(), tdm_priv == NULL", __func__);
dev_err()
return -EINVAL;- }