Il 17/02/22 14:41, Jiaxin Yu ha scritto:
This patch adds mt8186 tdm dai driver.
Signed-off-by: Jiaxin Yu jiaxin.yu@mediatek.com
sound/soc/mediatek/mt8186/mt8186-dai-tdm.c | 713 +++++++++++++++++++++ 1 file changed, 713 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..28dd3661f0e0 --- /dev/null +++ b/sound/soc/mediatek/mt8186/mt8186-dai-tdm.c @@ -0,0 +1,713 @@ +// 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;- else
Drop the "else"
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;- else
Same here
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);- else
...and same here
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_info(afe->dev, "%s(), tdm_priv == NULL", __func__);
dev_err()
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_info(afe->dev, "%s(), tdm_priv == NULL", __func__);
dev_err() - please fix all other instances
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;
+}
...snip...
+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_info(afe->dev, "%s(), kcontrol name %s, hd_en %d\n",
__func__, kcontrol->id.name, hd_en);
dev_dbg()
- if (!tdm_priv) {
dev_info(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_info(afe->dev,"%s(), freq(%d Hz) invalid\n", __func__, freq);return -EINVAL;- }
- if (apll_rate % freq != 0) {
dev_info(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 ctrl_reg;
- unsigned int ctrl_mask;
- unsigned int tran_rate;
- unsigned int tran_relatch_rate;
- if (tdm_priv)
tdm_priv->rate = rate;- else
dev_info(afe->dev, "%s(), tdm_priv == NULL", __func__);- tran_rate = mt8186_rate_transform(afe->dev, rate, dai->id);
- tran_relatch_rate = mt8186_tdm_relatch_rate_transform(afe->dev, rate);
- /* calculate mclk_rate, if not set explicitly */
- if (!tdm_priv->mclk_rate) {
tdm_priv->mclk_rate = rate * tdm_priv->mclk_multiple;mtk_dai_tdm_cal_mclk(afe,tdm_priv,tdm_priv->mclk_rate);- }
- /* ETDM_IN1_CON0 */
- tdm_con |= slave_mode << ETDM_IN1_CON0_REG_SLAVE_MODE_SFT;
- tdm_con |= tdm_mode << ETDM_IN1_CON0_REG_FMT_SFT;
- tdm_con |= (bit_width - 1) << ETDM_IN1_CON0_REG_BIT_LENGTH_SFT;
- tdm_con |= (bit_width - 1) << ETDM_IN1_CON0_REG_WORD_LENGTH_SFT;
- tdm_con |= (tdm_channels - 1) << ETDM_IN1_CON0_REG_CH_NUM_SFT;
- /* default disable sync mode */
- tdm_con |= 0 << ETDM_IN1_CON0_REG_SYNC_MODE_SFT;
0 << (anything) == 0
(number |= 0) == number
Is this a mistake, or are you really doing nothing here?
- /* relatch fix to h26m */
- tdm_con |= 0 << ETDM_IN1_CON0_REG_RELATCH_1X_EN_SEL_DOMAIN_SFT;
- ctrl_reg = ETDM_IN1_CON0;
- ctrl_mask = ETDM_IN_CON0_CTRL_MASK;
- regmap_update_bits(afe->regmap, ctrl_reg, ctrl_mask, tdm_con);
- /* ETDM_IN1_CON1 */
- tdm_con = 0;
- tdm_con |= 0 << ETDM_IN1_CON1_REG_LRCK_AUTO_MODE_SFT;
- tdm_con |= 1 << ETDM_IN1_CON1_PINMUX_MCLK_CTRL_OE_SFT;
- tdm_con |= (lrck_width - 1) << ETDM_IN1_CON1_REG_LRCK_WIDTH_SFT;
- ctrl_reg = ETDM_IN1_CON1;
- ctrl_mask = ETDM_IN_CON1_CTRL_MASK;
- regmap_update_bits(afe->regmap, ctrl_reg, ctrl_mask, tdm_con);
You don't need the ctrl_reg, nor ctrl_mask variables...
regmap_update_bits(afe->regmap, ETDM_IN1_CON1, ETDM_IN_CON1_CTRL_MASK, tdm_con);
- /* ETDM_IN1_CON3 */
- tdm_con = 0;
- tdm_con = ETDM_IN_CON3_FS(tran_rate);
- ctrl_reg = ETDM_IN1_CON3;
- ctrl_mask = ETDM_IN_CON3_CTRL_MASK;
- regmap_update_bits(afe->regmap, ctrl_reg, ctrl_mask, tdm_con);
same here
- /* ETDM_IN1_CON4 */
- tdm_con = 0;
- tdm_con = ETDM_IN_CON4_FS(tran_relatch_rate);
- if (slave_mode) {
if (lrck_inv)tdm_con |= ETDM_IN_CON4_CON0_SLAVE_LRCK_INV;if (bck_inv)tdm_con |= ETDM_IN_CON4_CON0_SLAVE_BCK_INV;- } else {
if (lrck_inv)tdm_con |= ETDM_IN_CON4_CON0_MASTER_LRCK_INV;if (bck_inv)tdm_con |= ETDM_IN_CON4_CON0_MASTER_BCK_INV;- }
- ctrl_reg = ETDM_IN1_CON4;
- ctrl_mask = ETDM_IN_CON4_CTRL_MASK;
- regmap_update_bits(afe->regmap, ctrl_reg, ctrl_mask, tdm_con);
and here
- /* ETDM_IN1_CON2 */
- tdm_con = 0;
- if (data_mode == TDM_DATA_MULTI_PIN) {
tdm_con |= ETDM_IN_CON2_MULTI_IP_2CH_MODE;tdm_con |= ETDM_IN_CON2_MULTI_IP_CH(channels);- }
- ctrl_reg = ETDM_IN1_CON2;
- ctrl_mask = ETDM_IN_CON2_CTRL_MASK;
- regmap_update_bits(afe->regmap, ctrl_reg, ctrl_mask, tdm_con);
and here
- /* ETDM_IN1_CON8 */
- tdm_con = 0;
- if (slave_mode) {
tdm_con |= 1 << ETDM_IN1_CON8_REG_ETDM_USE_AFIFO_SFT;tdm_con |= 0 << ETDM_IN1_CON8_REG_AFIFO_CLOCK_DOMAIN_SEL_SFT;tdm_con |= ETDM_IN_CON8_FS(tran_relatch_rate);- } else {
tdm_con |= 0 << ETDM_IN1_CON8_REG_ETDM_USE_AFIFO_SFT;- }
- ctrl_reg = ETDM_IN1_CON8;
- ctrl_mask = ETDM_IN_CON8_CTRL_MASK;
- regmap_update_bits(afe->regmap, ctrl_reg, ctrl_mask, tdm_con);
finally, here too.
- return 0;
+}
Thanks, ANgelo