sun50i-dmic.c | Explore in Territory

// SPDX-License-Identifier: GPL-2.0-or-later
//
// This driver supports the DMIC in Allwinner's H6 SoCs.
//
// Copyright 2021 Ban Tao <[email protected]>

#include <linux/clk.h>
#include <linux/device.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/reset.h>
#include <sound/dmaengine_pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/tlv.h>

#define SUN50I_DMIC_EN_CTL …
	#define SUN50I_DMIC_EN_CTL_GLOBE …
	#define SUN50I_DMIC_EN_CTL_CHAN(v) …
	#define SUN50I_DMIC_EN_CTL_CHAN_MASK …
#define SUN50I_DMIC_SR …
	#define SUN50I_DMIC_SR_SAMPLE_RATE(v) …
	#define SUN50I_DMIC_SR_SAMPLE_RATE_MASK …
#define SUN50I_DMIC_CTL …
	#define SUN50I_DMIC_CTL_OVERSAMPLE_RATE …
#define SUN50I_DMIC_DATA …
#define SUN50I_DMIC_INTC …
	#define SUN50I_DMIC_FIFO_DRQ_EN …
#define SUN50I_DMIC_INT_STA …
	#define SUN50I_DMIC_INT_STA_OVERRUN_IRQ_PENDING …
	#define SUN50I_DMIC_INT_STA_DATA_IRQ_PENDING …
#define SUN50I_DMIC_RXFIFO_CTL …
	#define SUN50I_DMIC_RXFIFO_CTL_FLUSH …
	#define SUN50I_DMIC_RXFIFO_CTL_MODE_MASK …
	#define SUN50I_DMIC_RXFIFO_CTL_MODE_LSB …
	#define SUN50I_DMIC_RXFIFO_CTL_MODE_MSB …
	#define SUN50I_DMIC_RXFIFO_CTL_SAMPLE_MASK …
	#define SUN50I_DMIC_RXFIFO_CTL_SAMPLE_16 …
	#define SUN50I_DMIC_RXFIFO_CTL_SAMPLE_24 …
#define SUN50I_DMIC_CH_NUM …
	#define SUN50I_DMIC_CH_NUM_N(v) …
	#define SUN50I_DMIC_CH_NUM_N_MASK …
#define SUN50I_DMIC_CNT …
	#define SUN50I_DMIC_CNT_N …
#define SUN50I_DMIC_D0D1_VOL_CTR …
	#define SUN50I_DMIC_D0D1_VOL_CTR_0R …
	#define SUN50I_DMIC_D0D1_VOL_CTR_0L …
	#define SUN50I_DMIC_D0D1_VOL_CTR_1R …
	#define SUN50I_DMIC_D0D1_VOL_CTR_1L …
#define SUN50I_DMIC_D2D3_VOL_CTR …
        #define SUN50I_DMIC_D2D3_VOL_CTR_2R …
        #define SUN50I_DMIC_D2D3_VOL_CTR_2L …
        #define SUN50I_DMIC_D2D3_VOL_CTR_3R …
        #define SUN50I_DMIC_D2D3_VOL_CTR_3L …

#define SUN50I_DMIC_HPF_CTRL …
#define SUN50I_DMIC_VERSION …

struct sun50i_dmic_dev { … };

struct dmic_rate { … };

static const struct dmic_rate dmic_rate_s[] = …;

static int sun50i_dmic_startup(struct snd_pcm_substream *substream,
			       struct snd_soc_dai *cpu_dai)
{ … }

static int sun50i_dmic_hw_params(struct snd_pcm_substream *substream,
				 struct snd_pcm_hw_params *params,
				 struct snd_soc_dai *cpu_dai)
{ … }

static int sun50i_dmic_trigger(struct snd_pcm_substream *substream, int cmd,
			       struct snd_soc_dai *dai)
{ … }

static int sun50i_dmic_soc_dai_probe(struct snd_soc_dai *dai)
{ … }

static const struct snd_soc_dai_ops sun50i_dmic_dai_ops = …;

static const struct regmap_config sun50i_dmic_regmap_config = …;

#define SUN50I_DMIC_RATES …
#define SUN50I_DMIC_FORMATS …

static struct snd_soc_dai_driver sun50i_dmic_dai = …;

static const struct of_device_id sun50i_dmic_of_match[] = …;
MODULE_DEVICE_TABLE(of, sun50i_dmic_of_match);

static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(sun50i_dmic_vol_scale, -12000, 75, 1);

static const struct snd_kcontrol_new sun50i_dmic_controls[] = …;

static const struct snd_soc_component_driver sun50i_dmic_component = …;

static int sun50i_dmic_runtime_suspend(struct device *dev)
{ … }

static int sun50i_dmic_runtime_resume(struct device *dev)
{ … }

static int sun50i_dmic_probe(struct platform_device *pdev)
{ … }

static void sun50i_dmic_remove(struct platform_device *pdev)
{ … }

static const struct dev_pm_ops sun50i_dmic_pm = …;

static struct platform_driver sun50i_dmic_driver = …;

module_platform_driver(…) …;

MODULE_DESCRIPTION(…) …;
MODULE_AUTHOR(…) …;
MODULE_LICENSE(…) …;
MODULE_ALIAS(…) …;
linux/sound/soc/sunxi/sun50i-dmic.c
