Il 13/03/22 16:10, Jiaxin Yu ha scritto:
Add mt8186 tdm dai driver.
Signed-off-by: Jiaxin Yu jiaxin.yu@mediatek.com
sound/soc/mediatek/mt8186/mt8186-dai-tdm.c | 695 +++++++++++++++++++++ 1 file changed, 695 insertions(+) create mode 100644 sound/soc/mediatek/mt8186/mt8186-dai-tdm.c
diff --git a/sound/soc/mediatek/mt8186/mt8186-dai-tdm.c b/sound/soc/mediatek/mt8186/mt8186-dai-tdm.c new file mode 100644 index 000000000000..52acc5f6e147 --- /dev/null +++ b/sound/soc/mediatek/mt8186/mt8186-dai-tdm.c @@ -0,0 +1,695 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// MediaTek ALSA SoC Audio DAI TDM 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-clk.h" +#include "mt8186-afe-common.h" +#include "mt8186-afe-gpio.h" +#include "mt8186-interconnection.h"
+#define TDM_HD_EN_W_NAME "TDM_HD_EN" +#define TDM_MCLK_EN_W_NAME "TDM_MCLK_EN" +#define MTK_AFE_TDM_KCONTROL_NAME "TDM_HD_Mux"
+struct mtk_afe_tdm_priv {
- unsigned int id;
- unsigned int rate; /* for determine which apll to use */
- unsigned int bck_invert;
- unsigned int lck_invert;
- unsigned int lrck_width;
- unsigned int mclk_id;
- unsigned int mclk_multiple; /* according to sample rate */
- unsigned int mclk_rate;
- unsigned int mclk_apll;
- unsigned int tdm_mode;
- unsigned int data_mode;
- unsigned int slave_mode;
- unsigned int low_jitter_en;
+};
+enum {
- TDM_IN_I2S = 0,
- TDM_IN_LJ = 1,
- TDM_IN_RJ = 2,
- TDM_IN_DSP_A = 4,
- TDM_IN_DSP_B = 5,
+};
+enum {
- TDM_DATA_ONE_PIN = 0,
- TDM_DATA_MULTI_PIN,
+};
+enum {
- TDM_BCK_NON_INV = 0,
- TDM_BCK_INV = 1,
+};
+enum {
- TDM_LCK_NON_INV = 0,
- TDM_LCK_INV = 1,
+};
+static unsigned int get_tdm_lrck_width(snd_pcm_format_t format,
unsigned int mode)+{
- if (mode == TDM_IN_DSP_A || mode == TDM_IN_DSP_B)
return 0;- return snd_pcm_format_physical_width(format) - 1;
+}
+static unsigned int get_tdm_ch_fixup(unsigned int channels) +{
- if (channels > 4)
return 8;- else if (channels > 2)
return 4;- return 2;
+}
+static unsigned int get_tdm_ch_per_sdata(unsigned int mode,
unsigned int channels)+{
- if (mode == TDM_IN_DSP_A || mode == TDM_IN_DSP_B)
return get_tdm_ch_fixup(channels);- return 2;
+}
+enum {
- SUPPLY_SEQ_APLL,
- SUPPLY_SEQ_TDM_MCK_EN,
- SUPPLY_SEQ_TDM_HD_EN,
- SUPPLY_SEQ_TDM_EN,
+};
+static int get_tdm_id_by_name(const char *name) +{
- return MT8186_DAI_TDM_IN;
+}
+static int mtk_tdm_en_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 mt8186_afe_private *afe_priv = afe->platform_priv;
- int dai_id = get_tdm_id_by_name(w->name);
- struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai_id];
- if (!tdm_priv) {
dev_err(afe->dev, "%s(), tdm_priv == NULL", __func__);return -EINVAL;- }
- dev_dbg(cmpnt->dev, "%s(), name %s, event 0x%x\n",
__func__, w->name, event);- switch (event) {
- case SND_SOC_DAPM_PRE_PMU:
mt8186_afe_gpio_request(afe->dev, true, tdm_priv->id, 0);break;- case SND_SOC_DAPM_POST_PMD:
mt8186_afe_gpio_request(afe->dev, false, tdm_priv->id, 0);break;- default:
break;- }
- return 0;
+}
+static int mtk_tdm_mck_en_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 mt8186_afe_private *afe_priv = afe->platform_priv;
- int dai_id = get_tdm_id_by_name(w->name);
- struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai_id];
- if (!tdm_priv) {
dev_err(afe->dev, "%s(), tdm_priv == NULL", __func__);return -EINVAL;- }
- dev_dbg(cmpnt->dev, "%s(), name %s, event 0x%x, dai_id %d\n",
__func__, w->name, event, dai_id);- switch (event) {
- case SND_SOC_DAPM_PRE_PMU:
mt8186_mck_enable(afe, tdm_priv->mclk_id, tdm_priv->mclk_rate);break;- case SND_SOC_DAPM_POST_PMD:
tdm_priv->mclk_rate = 0;mt8186_mck_disable(afe, tdm_priv->mclk_id);break;- default:
break;- }
- return 0;
+}
+/* dai component */ +/* tdm virtual mux to output widget */ +static const char * const tdm_mux_map[] = {
- "Normal", "Dummy_Widget",
+};
+static int tdm_mux_map_value[] = {
- 0, 1,
+};
+static SOC_VALUE_ENUM_SINGLE_AUTODISABLE_DECL(tdm_mux_map_enum,
SND_SOC_NOPM,0,1,tdm_mux_map,tdm_mux_map_value);+static const struct snd_kcontrol_new tdm_in_mux_control =
- SOC_DAPM_ENUM("TDM In Select", tdm_mux_map_enum);
+static const struct snd_soc_dapm_widget mtk_dai_tdm_widgets[] = {
- SND_SOC_DAPM_CLOCK_SUPPLY("aud_tdm_clk"),
- SND_SOC_DAPM_SUPPLY_S("TDM_EN", SUPPLY_SEQ_TDM_EN,
ETDM_IN1_CON0, ETDM_IN1_CON0_REG_ETDM_IN_EN_SFT,0, mtk_tdm_en_event,SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),- /* tdm hd en */
- SND_SOC_DAPM_SUPPLY_S(TDM_HD_EN_W_NAME, SUPPLY_SEQ_TDM_HD_EN,
ETDM_IN1_CON2, ETDM_IN1_CON2_REG_CLOCK_SOURCE_SEL_SFT,0, NULL,SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),- SND_SOC_DAPM_SUPPLY_S(TDM_MCLK_EN_W_NAME, SUPPLY_SEQ_TDM_MCK_EN,
SND_SOC_NOPM, 0, 0,mtk_tdm_mck_en_event,SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),- SND_SOC_DAPM_INPUT("TDM_DUMMY_IN"),
- SND_SOC_DAPM_MUX("TDM_In_Mux",
SND_SOC_NOPM, 0, 0, &tdm_in_mux_control),+};
+static int mtk_afe_tdm_mclk_connect(struct snd_soc_dapm_widget *source,
struct snd_soc_dapm_widget *sink)+{
- struct snd_soc_dapm_widget *w = sink;
- struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
- struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt);
- struct mt8186_afe_private *afe_priv = afe->platform_priv;
- int dai_id = get_tdm_id_by_name(w->name);
- struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai_id];
- if (!tdm_priv) {
dev_err(afe->dev, "%s(), tdm_priv == NULL", __func__);return 0;- }
- return (tdm_priv->mclk_rate > 0) ? 1 : 0;
+}
+static int mtk_afe_tdm_mclk_apll_connect(struct snd_soc_dapm_widget *source,
struct snd_soc_dapm_widget *sink)+{
- struct snd_soc_dapm_widget *w = sink;
- struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
- struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt);
- struct mt8186_afe_private *afe_priv = afe->platform_priv;
- int dai_id = get_tdm_id_by_name(w->name);
- struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai_id];
- int cur_apll;
- /* which apll */
- cur_apll = mt8186_get_apll_by_name(afe, source->name);
- return (tdm_priv->mclk_apll == cur_apll) ? 1 : 0;
+}
+static int mtk_afe_tdm_hd_connect(struct snd_soc_dapm_widget *source,
struct snd_soc_dapm_widget *sink)+{
- struct snd_soc_dapm_widget *w = sink;
- struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
- struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt);
- struct mt8186_afe_private *afe_priv = afe->platform_priv;
- int dai_id = get_tdm_id_by_name(w->name);
- struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai_id];
- if (!tdm_priv) {
dev_err(afe->dev, "%s(), tdm_priv == NULL", __func__);return 0;- }
- return tdm_priv->low_jitter_en;
+}
+static int mtk_afe_tdm_apll_connect(struct snd_soc_dapm_widget *source,
struct snd_soc_dapm_widget *sink)+{
- struct snd_soc_dapm_widget *w = sink;
- struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
- struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt);
- struct mt8186_afe_private *afe_priv = afe->platform_priv;
- int dai_id = get_tdm_id_by_name(w->name);
- struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai_id];
- int cur_apll;
- int tdm_need_apll;
- if (!tdm_priv) {
dev_err(afe->dev, "%s(), tdm_priv == NULL", __func__);return 0;- }
- /* which apll */
- cur_apll = mt8186_get_apll_by_name(afe, source->name);
- /* choose APLL from tdm rate */
- tdm_need_apll = mt8186_get_apll_by_rate(afe, tdm_priv->rate);
- return (tdm_need_apll == cur_apll) ? 1 : 0;
+}
+/* low jitter control */ +static const char * const mt8186_tdm_hd_str[] = {
- "Normal", "Low_Jitter"
+};
+static const struct soc_enum mt8186_tdm_enum[] = {
- SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(mt8186_tdm_hd_str),
mt8186_tdm_hd_str),+};
+static int mt8186_tdm_hd_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 mt8186_afe_private *afe_priv = afe->platform_priv;
- int dai_id = get_tdm_id_by_name(kcontrol->id.name);
- struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai_id];
- if (!tdm_priv) {
dev_err(afe->dev, "%s(), tdm_priv == NULL", __func__);return -EINVAL;- }
- ucontrol->value.integer.value[0] = tdm_priv->low_jitter_en;
- return 0;
+}
+static int mt8186_tdm_hd_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 mt8186_afe_private *afe_priv = afe->platform_priv;
- int dai_id = get_tdm_id_by_name(kcontrol->id.name);
- struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai_id];
- struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
- int hd_en;
- if (ucontrol->value.enumerated.item[0] >= e->items)
return -EINVAL;- hd_en = ucontrol->value.integer.value[0];
- dev_dbg(afe->dev, "%s(), kcontrol name %s, hd_en %d\n",
__func__, kcontrol->id.name, hd_en);- if (!tdm_priv) {
dev_err(afe->dev, "%s(), tdm_priv == NULL", __func__);return -EINVAL;- }
- tdm_priv->low_jitter_en = hd_en;
- return 0;
+}
+static const struct snd_kcontrol_new mtk_dai_tdm_controls[] = {
- SOC_ENUM_EXT(MTK_AFE_TDM_KCONTROL_NAME, mt8186_tdm_enum[0],
mt8186_tdm_hd_get, mt8186_tdm_hd_set),+};
+static const struct snd_soc_dapm_route mtk_dai_tdm_routes[] = {
- {"TDM IN", NULL, "aud_tdm_clk"},
- {"TDM IN", NULL, "TDM_EN"},
- {"TDM IN", NULL, TDM_HD_EN_W_NAME, mtk_afe_tdm_hd_connect},
- {TDM_HD_EN_W_NAME, NULL, APLL1_W_NAME, mtk_afe_tdm_apll_connect},
- {TDM_HD_EN_W_NAME, NULL, APLL2_W_NAME, mtk_afe_tdm_apll_connect},
- {"TDM IN", NULL, TDM_MCLK_EN_W_NAME, mtk_afe_tdm_mclk_connect},
- {TDM_MCLK_EN_W_NAME, NULL, APLL1_W_NAME, mtk_afe_tdm_mclk_apll_connect},
- {TDM_MCLK_EN_W_NAME, NULL, APLL2_W_NAME, mtk_afe_tdm_mclk_apll_connect},
- /* allow tdm on without codec on */
- {"TDM IN", NULL, "TDM_In_Mux"},
- {"TDM_In_Mux", "Dummy_Widget", "TDM_DUMMY_IN"},
+};
+/* dai ops */ +static int mtk_dai_tdm_cal_mclk(struct mtk_base_afe *afe,
struct mtk_afe_tdm_priv *tdm_priv,int freq)+{
- int apll;
- int apll_rate;
- apll = mt8186_get_apll_by_rate(afe, freq);
- apll_rate = mt8186_get_apll_rate(afe, apll);
- if (!freq || freq > apll_rate) {
dev_err(afe->dev,"%s(), freq(%d Hz) invalid\n", __func__, freq);return -EINVAL;- }
- if (apll_rate % freq != 0) {
dev_err(afe->dev,"%s(), APLL cannot generate %d Hz", __func__, freq);return -EINVAL;- }
- tdm_priv->mclk_rate = freq;
- tdm_priv->mclk_apll = apll;
- return 0;
+}
+static int mtk_dai_tdm_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 tdm_id = dai->id;
- struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[tdm_id];
- unsigned int tdm_mode = tdm_priv->tdm_mode;
- unsigned int data_mode = tdm_priv->data_mode;
- unsigned int rate = params_rate(params);
- unsigned int channels = params_channels(params);
- snd_pcm_format_t format = params_format(params);
- unsigned int bit_width =
snd_pcm_format_physical_width(format);- unsigned int tdm_channels = (data_mode == TDM_DATA_ONE_PIN) ?
get_tdm_ch_per_sdata(tdm_mode, channels) : 2;- unsigned int lrck_width =
get_tdm_lrck_width(format, tdm_mode);- unsigned int tdm_con = 0;
- bool slave_mode = tdm_priv->slave_mode;
- bool lrck_inv = tdm_priv->lck_invert;
- bool bck_inv = tdm_priv->bck_invert;
- unsigned int tran_rate;
- unsigned int tran_relatch_rate;
- if (tdm_priv)
tdm_priv->rate = rate;- else {
dev_err(afe->dev, "%s(), tdm_priv == NULL", __func__);return -EINVAL;- }
This can be simpler:
if (!tdm_priv) { dev_err .... return -EINVAL; }
tdm_priv->rate = rate;
...with that fixed:
Reviewed-by: AngeloGioacchino Del Regno angelogioacchino.delregno@collabora.com