mt8186-dai-i2s.c | Explore in Territory

// SPDX-License-Identifier: GPL-2.0
//
// MediaTek ALSA SoC Audio DAI I2S Control
//
// Copyright (c) 2022 MediaTek Inc.
// Author: Jiaxin Yu <[email protected]>

#include <linux/bitops.h>
#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"

enum { … };

enum { … };

enum { … };

enum { … };

enum { … };

struct mtk_afe_i2s_priv { … };

static unsigned int get_i2s_wlen(snd_pcm_format_t format)
{ … }

#define MTK_AFE_I2S0_KCONTROL_NAME …
#define MTK_AFE_I2S1_KCONTROL_NAME …
#define MTK_AFE_I2S2_KCONTROL_NAME …
#define MTK_AFE_I2S3_KCONTROL_NAME …
#define MTK_AFE_I2S0_SRC_KCONTROL_NAME …

#define I2S0_HD_EN_W_NAME …
#define I2S1_HD_EN_W_NAME …
#define I2S2_HD_EN_W_NAME …
#define I2S3_HD_EN_W_NAME …

#define I2S0_MCLK_EN_W_NAME …
#define I2S1_MCLK_EN_W_NAME …
#define I2S2_MCLK_EN_W_NAME …
#define I2S3_MCLK_EN_W_NAME …

static int get_i2s_id_by_name(struct mtk_base_afe *afe,
			      const char *name)
{ … }

static struct mtk_afe_i2s_priv *get_i2s_priv_by_name(struct mtk_base_afe *afe,
						     const char *name)
{ … }

/* low jitter control */
static const char * const mt8186_i2s_hd_str[] = …;

static const struct soc_enum mt8186_i2s_enum[] = …;

static int mt8186_i2s_hd_get(struct snd_kcontrol *kcontrol,
			     struct snd_ctl_elem_value *ucontrol)
{ … }

static int mt8186_i2s_hd_set(struct snd_kcontrol *kcontrol,
			     struct snd_ctl_elem_value *ucontrol)
{ … }

static const struct snd_kcontrol_new mtk_dai_i2s_controls[] = …;

/* dai component */
/* i2s virtual mux to output widget */
static const char * const i2s_mux_map[] = …;

static int i2s_mux_map_value[] = …;

static SOC_VALUE_ENUM_SINGLE_AUTODISABLE_DECL(i2s_mux_map_enum,
					      SND_SOC_NOPM,
					      0,
					      1,
					      i2s_mux_map,
					      i2s_mux_map_value);

static const struct snd_kcontrol_new i2s0_in_mux_control = …;

static const struct snd_kcontrol_new i2s1_out_mux_control = …;

static const struct snd_kcontrol_new i2s2_in_mux_control = …;

static const struct snd_kcontrol_new i2s3_out_mux_control = …;

/* i2s in lpbk */
static const char * const i2s_lpbk_mux_map[] = …;

static int i2s_lpbk_mux_map_value[] = …;

static SOC_VALUE_ENUM_SINGLE_AUTODISABLE_DECL(i2s0_lpbk_mux_map_enum,
					      AFE_I2S_CON,
					      I2S_LOOPBACK_SFT,
					      1,
					      i2s_lpbk_mux_map,
					      i2s_lpbk_mux_map_value);

static const struct snd_kcontrol_new i2s0_lpbk_mux_control = …;

static SOC_VALUE_ENUM_SINGLE_AUTODISABLE_DECL(i2s2_lpbk_mux_map_enum,
					      AFE_I2S_CON2,
					      I2S3_LOOPBACK_SFT,
					      1,
					      i2s_lpbk_mux_map,
					      i2s_lpbk_mux_map_value);

static const struct snd_kcontrol_new i2s2_lpbk_mux_control = …;

/* interconnection */
static const struct snd_kcontrol_new mtk_i2s3_ch1_mix[] = …;

static const struct snd_kcontrol_new mtk_i2s3_ch2_mix[] = …;

static const struct snd_kcontrol_new mtk_i2s1_ch1_mix[] = …;

static const struct snd_kcontrol_new mtk_i2s1_ch2_mix[] = …;

enum { … };

static int mtk_i2s_en_event(struct snd_soc_dapm_widget *w,
			    struct snd_kcontrol *kcontrol,
			    int event)
{ … }

static int mtk_apll_event(struct snd_soc_dapm_widget *w,
			  struct snd_kcontrol *kcontrol,
			  int event)
{ … }

static int mtk_mclk_en_event(struct snd_soc_dapm_widget *w,
			     struct snd_kcontrol *kcontrol,
			     int event)
{ … }

static const struct snd_soc_dapm_widget mtk_dai_i2s_widgets[] = …;

static int mtk_afe_i2s_share_connect(struct snd_soc_dapm_widget *source,
				     struct snd_soc_dapm_widget *sink)
{ … }

static int mtk_afe_i2s_hd_connect(struct snd_soc_dapm_widget *source,
				  struct snd_soc_dapm_widget *sink)
{ … }

static int mtk_afe_i2s_apll_connect(struct snd_soc_dapm_widget *source,
				    struct snd_soc_dapm_widget *sink)
{ … }

static int mtk_afe_i2s_mclk_connect(struct snd_soc_dapm_widget *source,
				    struct snd_soc_dapm_widget *sink)
{ … }

static int mtk_afe_mclk_apll_connect(struct snd_soc_dapm_widget *source,
				     struct snd_soc_dapm_widget *sink)
{ … }

static const struct snd_soc_dapm_route mtk_dai_i2s_routes[] = …;

/* dai ops */
static int mtk_dai_connsys_i2s_hw_params(struct snd_pcm_substream *substream,
					 struct snd_pcm_hw_params *params,
					 struct snd_soc_dai *dai)
{ … }

static int mtk_dai_connsys_i2s_trigger(struct snd_pcm_substream *substream,
				       int cmd, struct snd_soc_dai *dai)
{ … }

static const struct snd_soc_dai_ops mtk_dai_connsys_i2s_ops = …;

/* i2s */
static int mtk_dai_i2s_config(struct mtk_base_afe *afe,
			      struct snd_pcm_hw_params *params,
			      int i2s_id)
{ … }

static int mtk_dai_i2s_hw_params(struct snd_pcm_substream *substream,
				 struct snd_pcm_hw_params *params,
				 struct snd_soc_dai *dai)
{ … }

static int mtk_dai_i2s_set_sysclk(struct snd_soc_dai *dai,
				  int clk_id, unsigned int freq, int dir)
{ … }

static const struct snd_soc_dai_ops mtk_dai_i2s_ops = …;

/* dai driver */
#define MTK_CONNSYS_I2S_RATES …

#define MTK_I2S_RATES …

#define MTK_I2S_FORMATS …

static struct snd_soc_dai_driver mtk_dai_i2s_driver[] = …;

/* this enum is merely for mtk_afe_i2s_priv declare */
enum { … };

static const struct mtk_afe_i2s_priv mt8186_i2s_priv[DAI_I2S_NUM] = …;

/**
 * mt8186_dai_i2s_set_share() - Set up I2S ports to share a single clock.
 * @afe: Pointer to &struct mtk_base_afe
 * @main_i2s_name: The name of the I2S port that will provide the clock
 * @secondary_i2s_name: The name of the I2S port that will use this clock
 */
int mt8186_dai_i2s_set_share(struct mtk_base_afe *afe, const char *main_i2s_name,
			     const char *secondary_i2s_name)
{ … }
EXPORT_SYMBOL_GPL(…);

static int mt8186_dai_i2s_set_priv(struct mtk_base_afe *afe)
{ … }

int mt8186_dai_i2s_register(struct mtk_base_afe *afe)
{ … }
linux/sound/soc/mediatek/mt8186/mt8186-dai-i2s.c
